EP1682187A2 - Oligoribonukleotide zur behandlung von unerw nschter pigment ierung der haut und der haare durch rna-interferenz - Google Patents
Oligoribonukleotide zur behandlung von unerw nschter pigment ierung der haut und der haare durch rna-interferenzInfo
- Publication number
- EP1682187A2 EP1682187A2 EP04797559A EP04797559A EP1682187A2 EP 1682187 A2 EP1682187 A2 EP 1682187A2 EP 04797559 A EP04797559 A EP 04797559A EP 04797559 A EP04797559 A EP 04797559A EP 1682187 A2 EP1682187 A2 EP 1682187A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- skin
- hair
- oligoribonucleotide
- pigmentation
- oligoribonucleotides
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
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- SFVFIFLLYFPGHH-UHFFFAOYSA-M stearalkonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCC[N+](C)(C)CC1=CC=CC=C1 SFVFIFLLYFPGHH-UHFFFAOYSA-M 0.000 description 1
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- GAAKLDANOSASAM-UHFFFAOYSA-N undec-10-enoic acid;zinc Chemical compound [Zn].OC(=O)CCCCCCCCC=C GAAKLDANOSASAM-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/60—Sugars; Derivatives thereof
- A61K8/606—Nucleosides; Nucleotides; Nucleic acids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q19/00—Preparations for care of the skin
- A61Q19/02—Preparations for care of the skin for chemically bleaching or whitening the skin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q5/00—Preparations for care of the hair
- A61Q5/08—Preparations for bleaching the hair
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N2310/00—Structure or type of the nucleic acid
- C12N2310/10—Type of nucleic acid
- C12N2310/11—Antisense
- C12N2310/111—Antisense spanning the whole gene, or a large part of it
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N2310/00—Structure or type of the nucleic acid
- C12N2310/50—Physical structure
- C12N2310/53—Physical structure partially self-complementary or closed
Definitions
- the invention relates to oligoribonucleotides which induce the breakdown of mRNA of enzymes and structures involved in the pigmentation process of the skin and which are particularly suitable for the treatment and prophylaxis of undesired pigmentation of the skin (skin tanning), as occurs, for example, as a result of UV radiation.
- skin tanning skin tanning
- the present invention relates to unwanted hair pigmentation.
- the present invention relates to cosmetic and dermatological preparations for the prophylaxis and treatment of undesirable pigmentation, for example local hyper- and deficient pigmentations (liver spots, freckles, age spots, melasma, post-inflammatory hyperpigmentation), but also purely for cosmetic lightening of larger, individual skin types adequately pigmented skin areas.
- undesirable pigmentation for example local hyper- and deficient pigmentations (liver spots, freckles, age spots, melasma, post-inflammatory hyperpigmentation), but also purely for cosmetic lightening of larger, individual skin types adequately pigmented skin areas.
- Melanocytes are responsible for the pigmentation of the skin, which can be found in the bottom layer of the epidermis, the stratum basale, next to the basal cells as - depending on the skin type either isolated or more or less frequently occurring - pigment-forming cells.
- melanocytes contain melanosomes, in which the melanin is formed. When stimulated by UV radiation, among other things, melanin is increasingly formed. This is ultimately transported via the living layers of the epidermis (keratinocytes) into the horny layer (corneocytes) and causes a more or less pronounced brown to brown-black skin color.
- DHICA and DHI Melanin are formed as the final stage of an oxidative process, in which tyrosine with the help of the enzyme tyrosinase via several intermediate stages to the brown to brown-black eumelanins (DHICA and DHI Melanin) or with the participation of sulfur-containing compounds to reddish pheomelanin.
- DHICA and DHI melanin are produced via the common intermediate stages dopaquinone and dopachrome. The latter is implemented, partly with the participation of further enzymes, either in indole-5,6-quinone carboxylic acid or in indole-5,6-quinone, from which the two eumelanins mentioned arise.
- phaeomelanin occurs among other things via the intermediates dopaquinone and cysteinyldopa.
- the expression of the melanin-synthesizing enzymes is controlled by a specific transcription factor (microphthalmia-associated transcription factor, MITF).
- MITF microphthalmia-associated transcription factor
- p-protein appears to play an important role here, although the exact function is still unclear.
- the transfer of the melanosomes, their whereabouts in the epidermis and their breakdown and breakdown of the melanin is also of crucial importance in the pigmentation of the skin. It could be shown that the PAR-2 receptor is important for the transport of the melanosomes from the melanocytes into the keratinocytes (M. Seiberg et al., 2000, J. Cell. Sei., 113: 3093-101).
- the size and shape of the melanosomes also influence their light-scattering properties and thus the color appearance of the skin. In black Africans, for example, large spheroidal, individually present melanosomes are found, whereas in Caucasians, one finds smaller melanosomes that occur in groups.
- Problems with hyperpigmentation of the skin have a variety of causes or are side effects of many biological processes, e.g. UV radiation (e.g. freckles, ephelides), genetic disposition, incorrect pigmentation of the skin during wound healing or scarring (post-inflammatory hyperpigmentation) or skin aging (e.g. lentigines senile).
- Skin peeling methods (chemical and mechanical "peelings") are also used, but these often result in inflammatory reactions and, because of the post-inflammatory hyperpigmentation that occurs afterwards, can even lead to more pigmentation instead of reduced pigmentation.
- cosmetics also include hair care an extremely intensively researched area.
- the structure of all these hairs is roughly similar: the central hair mark (from epithelial cells with eosinophilic granules of the trichohyaline substance), surrounded by the hair cortex (from horny cells; contains pigments) and the cuticle (cuticle pili; coreless epidermal layer) and of layers of the epithelial and connective tissue sheath.
- the hair is divided into the hair shaft protruding from the skin and the oblique hair root reaching into the subcutis, the layers of which correspond approximately to those of the epidermis.
- the thickened lower end of the root, the hair bulb sits on a vascular connective tissue cone, the hair papilla, protruding into it (both as a hair floor).
- Melanin is responsible for the personal hair color. Melanin is formed in the melanocytes, cells that occur in the hair bulb in association with the keratinocytes of the hair market. As characteristic cell organelles, melanocytes contain melanosomes, in which the melanin is formed. This is transferred via the long dendrites of the melanocytes into the keratinocytes of the precortical matrix and creates the more or less pronounced blonde to brown-black hair color. The processes of melanin synthesis and the distribution of melanin in the hair are carried out analogously to the processes described above.
- Eumelanin is the black-brown pigment. It is mainly about the depth of color of the hair. In brown and black hair it occurs in clearly recognizable granules.
- Phaeomelanin is the red pigment. It is responsible for light blonde, blonde and red hair. The structure of this melanin is much finer and smaller. The different hair colors result from the different proportions of the melanin types: • Blond hair contains little eumelanin and a lot of phaeomelanin. • Dark hair contains a lot of eumelanin and little phaeomelanin. • Red hair also has little eumelanin and a lot of phaeomelanin. • All shades of hair in between result from different mixing ratios of the two melanin types. The pigment formation process can only proceed if sufficient tyrosinase is available. This enzyme is produced less frequently with age. This gradually leads to gray hair. The reason: with little tyrosinase too less and less tyrosine formed. The production of melanin also decreases. The missing melanin is replaced by the storage of air bubbles. The hair appears gray.
- This process is usually insidious. It begins at the temples and then extends to the entire hair on the head. Then it hits the beard and eyebrows. Finally, all of the body's hair is gray.
- gray hair is called canities.
- Premature graying from the age of 20, is also called Canities praecox.
- Symptoms of canities, or symptomatic graying of the hair can have various causes. These include: • Pernicious anemia (vitamin B deficiency anemia), • Severe endocrinological disorders, e.g. B. in thyroid diseases. • acute, febrile illnesses, • drug side effects, • cosmetics, • metals.
- the cosmetic industry uses lead acetate in some countries, which is toxic and is therefore prohibited in the European Cosmetics Regulation.
- This lead acetate is preferably applied to the hair as a solution and remains there for a long time without being washed off.
- keratin fibers e.g. B. hair, wool or furs
- Coupler and developer components are also referred to as oxidation dye precursors.
- Special representatives are, for example, p-phenylenediamine, p-toluenediamine, 2,4,5,6-tetraaminopyrimidine, p-aminophenol, N, N-bis (2-hydroxyethyl) -p-phenylenediamine, 2- (2,5-diaminophenyl ) -ethanol, 2- (2,5-diaminophenoxy) -ethanol, 1-phenyl-3-carboxyamido-4-amino-pyrazolon-5, 4-amino-3-methylphenol, 2-aminomethyl-4-aminophenol, 2- Hydroxy-methyl-4-aminophenol, 2-hydroxy-4,5,6-triaminopyrimidine, 2,4-dihydroxy-5,6-diaminopyrimidine and 2,5,6-triamino-4-hydroxypyrimidine.
- M-Phenylenediamine derivatives, naphthols, resorcinol and resorcinol derivatives, pyrazolones and m-aminophenols are generally used as coupler components.
- Particularly suitable coupler substances are ⁇ -naphthol, 1,5-, 2,7- and 1,7-dihydroxynaphthalene, 5-amino-2-methylphenol, m-aminophenol, resorcinol, resorcinol monomethyl ether, m-phenylenediamine, 2 , 4-diaminophenoxyethanol, 1-phenyl-3-methyl-pyrazolon-5, 2,4-di-chloro-3-aminophenol, 1, 3-bis (2,4-diaminophenoxy) propane, 2-chlororesorcinol, 4 -Chloror- sorcinol, 2-chloro-6-methyl-3-aminophenol, 2-methylresorcinol and 5-methylresorcinol.
- oxidation dyes intensive dyeings can be achieved with good fastness properties, but the development of the color is generally done under the influence of oxidizing agents such. B. H 2 O 2 , which in some cases can result in damage to the fiber. Furthermore, some oxidation dye precursors or certain mixtures of Oxidation dye precursors sometimes have a sensitizing effect on people with sensitive skin. Direct dyes are applied under gentler conditions, but their disadvantage is that the dyeings often have inadequate fastness properties.
- the object of the present invention is to reduce the independent melanin production of the hair, but without coloring agents and in particular oxidizing agents such. B. H 2 O 2 to be instructed. In addition, the agents must have no or only a very low sensitization potential.
- dsRNA double-stranded RNA fragments
- RNAi RNA interference
- the dsRNA causes the specific degradation of the homologous mRNA in the cell in an unexplained manner and thus prevents protein production.
- WO01 / 29058 discloses the identification of genes which are involved in RNAi and their use for modulating RNAi activity.
- the reduction in gene expression in cells by dsRNA is known from WO01 / 68836.
- the dsRNA contains a nucleotide sequence which, under the physiological conditions of the cell, hybridizes with the nucleotide sequence of at least part of the gene to be inhibited.
- the dsRNA is preferably 400 to 800 nucleotides in length.
- WO01 / 75164 discloses the use of dsRNA with a length of 21 to 23 nucleotides for the specific inactivation of gene functions in mammalian cells by RNAi.
- EP 1 214 945 A2 discloses the use of dsRNA with a length of 15 to 49 base pairs for inhibiting the expression of a given target gene in mammalian cells.
- the dsRNA can be modified to increase its stability and should allow the treatment of cancer, viral diseases and Alzheimer's disease.
- WO02 / 053773 relates to an in vitro method for determining skin stress and skin aging in humans and animals, test kits and biochips suitable for carrying out the method, and a test method for demonstrating the effectiveness of cosmetic or pharmaceutical active substances against skin stress and skin aging.
- WO 01/58918 A2 describes the use of oligonucleotides against tyrosinase and TRP-1 for lightening the skin.
- Oligoribonucleotides which are suitable for the prophylaxis and treatment of undesirable pigmentation of the skin and hair, have not previously been described.
- the object of the present invention is to provide compositions which enable an effective treatment of and prophylaxis against undesirable pigmentation of the skin and hair, in particular against irregular pigmentation of the skin (“uneven skin tone, age spots, melasma etc.), without the disadvantages of the prior art to show the technology.
- RNA molecules RNA molecules
- gene shutdown gene silencing
- RNAi RNA interference
- the invention thus relates to oligoribonucleotides which can induce the breakdown of the mRNA of structures involved in the pigmentation of skin or hair.
- the mRNA whose degradation is to be effected is shown below also called target mRNA. Accordingly, we understand target gene as the gene and in particular the coding region of the gene, the expression of which is wholly or partly suppressed.
- target sequence refers to both the target gene and the target mRNA.
- the degradation of the mRNA by structures involved in pigmentation of the skin and hair by RNAi is sequence-specific, ie an oligoribonucleotide generally only inhibits the expression of the corresponding target gene.
- the coding regions (cDNA) of the respective genes are preferred, including the 5 'and 3' UTR regions.
- the regions of the coding regions which are 50 to 100 nucleotides downstream of the start codon are particularly preferred.
- oligoribonucleotides according to the invention are preferably double-stranded RNA molecules (dsRNAs) which are homologous to the sequence of the target gene, or a section thereof, i.e. match the target gene with respect to sense and antisense strand.
- dsRNAs double-stranded RNA molecules
- dsRNA Homology is also present according to the invention if the dsRNA is not completely identical to the target sequence.
- the invention also relates to longer nucleotide fragments, such as dsRNAs that correspond in length to the respective target mRNAs or cDNAs. These can e.g. can be converted into fragments of 21 to 23 nucleotides in length by soluble Drosophila embryo extract (cf. WO01 / 75164). Long-chain dsRNA is also broken down into short pieces intracellularly. However, the direct use of long-chain dsRNA is generally not preferred since it can cause non-specific inhibition of translation in mammalian cells.
- the structure involved in the actual melanin synthesis is the enzyme tyrosinase, TRP1, TRP2 or the p-protein.
- tyrosinase the enzyme for melanin formation.
- TRP1, TRP2 and, in particular, p-protein have a rather supportive function in melanin formation only the inhibition of the existing pacemaker enzyme tyrosinase by more or less specific inhibitors (kojic acid etc.)
- the siRNA approach is highly selective.
- the enzymes involved in melanin synthesis are the following oxidases / tautomerases tyrosinase p14679 (EC 1.14.18.1)
- TRP-2 P40126 (EC 5.3.3.12)
- Tyrosinase (Tyr, Tyro) is the pacemaker enzyme for melanin synthesis.
- the enzymes TRP-1 (tyrosinase related peptide 1, Tyrpl, Tyr1) and TRP-2 (tyrosinase related peptide 2, Dct, Tyr2) control to what extent the brown DHICA or, exclusively under the influence of tyrosinase, the black DHI melanin is formed becomes.
- the numbers given are the access numbers (Accession Numbers) of the Swiss-PROT database of the EMBL-EBI (European Bioinformatics Institute Heidelberg). It is also preferred if the structure involved in the expression of the melanin synthesis is the transcriptin factor MITF.
- MITF pacemaker enzyme
- tyrosinase which does not run without the transcription factor MITF
- MITF since it controls the expression of tyrosinase, among other things.
- MITF - strictly speaking MITF-M- is a very exclusive transcription factor that only controls genes in the skin that are relevant for pigmentation.
- This in turn has the advantages that a) the melanin formation is nipped in the bud very early, b) no side effects occur, since there is no interference with other metabolic pathways, such as is the case with the inhibition of "general transcription factors” such as p53, NFkB or AP1 that are also partly involved in the regulation of pigmentation.
- the structures that continue to influence melanogenesis which are still very preferred, include the MITF transcription factor and, in particular, the melanocyte-specific M isoforms (MITF-M) and especially the p-protein ( OCA2):
- MITF (ID O75030)
- MITF-M1 (ID O75030-9)
- the structures which influence the pigmentation processes in the skin and which are preferred are those structures which are involved in the transport of the melanosomes into the epidermis.
- This also includes the peptidases trypsin and trypsin-like enzymes and various serine proteases (including mast cell tryptase beta III (ID Q96RZ7; MMCP-7-like tryptase (ID Q996RZ7)).
- the access numbers (Accession Numbers) of the Swiss-PROT database of the EMBL-EBI (European Bioinformatics Institute Heidelberg) are given here. It is therefore particularly preferred if the structure involved in the transfer of the melanosomes is proteinase activated receptor 2 (PAR-2).
- PAR-2 proteinase activated receptor 2
- no melanin is transported further and, as a result, melanin synthesis comes to a standstill.
- the inhibition of the proteases inhibits their important functions in the skin, which leads to side effects.
- the pharmaceutical or cosmetic compositions according to the invention preferably contain 0.00001 to 10% by weight, particularly preferably 0.0003 to 3% by weight and very particularly preferably 0.01 to 1.0 of the oligoribonucleotide (s) according to the invention, based on the total weight the composition.
- the above quantity relates to the mass of the oligoribonucleotides integrated in the vector, the mass of the vector itself is not taken into account.
- compositions which contain only those oligoribonucleotides which inhibit the expression of one or more of the above-mentioned genes, ie the genes of structures involved in skin pigmentation and, if appropriate, the proteinase PKR, and in particular of the preferred genes mentioned.
- the compositions according to the invention can contain one or preferably more oligoribonucleotides. These can be oligoribonucleotides that inhibit the expression of several different structures involved in skin pigmentation. However, mixtures of oligoribonucleotides can also be used which have different sequence regions of the same gene or the same mRNA of a structure involved in skin pigmentation as the target.
- compositions which contain 1 to 5 and in particular 1 to 3 different oligoribonucleotides are preferred. Mixtures of oligoribonucleotides which, besides the structures mentioned in the skin pigmentation and possibly the proteinase PKR, non-specifically inhibit or induce the activity of a large number of other skin proteins are undesirable since practically no control of side effects is possible. Skin proteins are understood to mean those proteins which are expressed in the skin. Compositions which contain one or more oligoribonucleotides which inhibit the expression of the tyrosinase or the transcription factor MITF are very particularly preferred. The splice variants MITF-M1 and MITF-M2 should be mentioned in particular.
- compositions which each contain at least one oligoribonucleotide which is directed against PAR-2 are also particularly preferred.
- compositions which each contain at least one oligoribonucleotide which is directed against TRP1 and / or TRP-2.
- those compositions are furthermore particularly preferred which contain oligoribonucleotides which are able to inhibit the expression of serine proteinases, such as pancreatic and neutrophil elastases and macrophage elastase, which belong to the group of elastases.
- serine proteinases are involved, among other things, in phagocytotic processes, in the defense against microorganisms, the degradation of elastin, collagens, proteoglycans, fibrinogen and fibrin and in the digestion of damaged tissue, but can also lead to an activation of PAR-2 (Bolognesi, M ., K. Djinovic-Carugo, et al. (1994) "Molecular bases for human leucocyte elastase inhibition.” Monaldi Arch Chest DJs 49 (2): 144-9).
- those oligoribonucleotides are preferred which express the expression of the particular Inhibit target gene compared to untreated cells by at least 25%, preferably by at least 50%, particularly preferably by at least 80% and very particularly preferably by at least 85% If necessary, the expression of the target gene in the cells is first measured to measure the inhibition Tumor cells are preferably used to determine the effectiveness of the oligoribonucleotides according to the invention, in the same way suitable primary cultures can be used.
- the oligoribonucleotides are introduced into the cells and then, if necessary after induction of the expression of the target gene, the expression rate of the target gene in these cells is measured and compared with that found in cells that have not been transfected with the respective oligoribonucleotide. It is also preferred if the oligoribonucleotide in front of the target sequence differs in a maximum of 0 to 2 base pairs, particularly preferably 0 to 1, based on a length of 20 base pairs, and very particularly preferably has no deviations from the target sequence, ie there are a maximum of 0 to 2 and in particular exchanged a maximum of 0 to 1 base pairs for other base pairs. This has the advantage of being particularly effective because it increases with the degree of agreement with the target sequence.
- the oligoribonucleotide is homologous to a section of the gene of the structure involved in the pigmentation of skin and / or hair, the sense strand of which is on the 5 'side by two adenosine residues and on the 3' side by two thymidine residues or by one Thymidine and a cytosine residue is flanked. This flanking leads to a particular effectiveness, without an explanation being known. It is particularly preferred if the oligoribonucleotide carries two deoxythymidine residues at the 3 'end.
- RNA duplexes according to the invention can have smooth (blunt ends) or projecting (sticky ends) ends.
- Double-stranded oligoribonucleotides have been found to be particularly effective which have an overhang of 1 to 6, preferably 1 or 2, nucleotides at the 3 'end of each strand.
- the protruding nucleotides are preferably 2'-deoxynucleotides, particularly preferably 2'-deoxythymidine residues. By using the 2'-deoxynucleotides, the costs of RNA synthesis can be reduced and the resistance of the RNA to the nuclease degradation can be increased.
- the protruding nucleotides need not necessarily be the nucleotides homologous to the target sequence and are therefore not taken into account in the deviations from the target sequence defined above.
- Oligoribonucleotides which have been shown to be particularly effective are those which are homologous to such a section of the target gene and in particular the corresponding double-stranded cDNA, the sense strand of which is on the 5 'side by two adenosine residues (A) and on the 3' side by two thymidine residues (T) or a thymidine and a cytidine residue (C) is limited.
- the section delimited by AA and TT or AA and TC preferably has a length of 19 to 21, in particular 19 nucleotides and accordingly has the general form AA (N 19 _ 2 i) TT or AA (N 19-21 ) TC, where N stands for a nucleotide.
- Oligoribonucleotides which are complementary to a section of the target gene or the corresponding double-stranded cDNA which has the general form AA (N 19 ) to AA (N 21 ) are further preferred. Oligoribonucleotides which are homologous to the N 9-21 fragment of the regions mentioned are particularly preferred.
- the particularly preferred oligoribonucleotides thus have a length of 19 to 21 base pairs, the individual strands forming these oligoribonucleotides preferably having two additional 2'-deoxynucleotides, in particular two 2'-deoxythymidine residues, on the 3 'side, so that the dsRNA 19 to 21 base pairs and comprises two protruding 2'-deoxynucleotides per strand.
- the target gene does not contain an area of the form AA (N 19-21 ), areas of the form NA (N 19 _2i) or any fragment of the form N 19-2 ⁇ are searched for. N 19 .
- fragments delimited, for example, by AA and TT are preferred, in principle, however, all dsRNA fragments which are homologous to the target sequence are suitable according to the invention.
- the oligoribonucleotides according to the invention could advantageously also be integrated into expression vectors, in particular those which bring about an expression of the oligoribonucleotides in mammalian cells.
- a stable inhibition of the expression of the target gene can be achieved even with an intracellular degradation of the oligoribonucleotides, since oligoribonucleotides are constantly supplied by the vector-assisted synthesis.
- One or more copies of a dsRNA can be integrated into a vector, but also one or more copies of two or more different dsRNAs. Suitable vector systems are described, for example, by Brummelkamp et al., Loc. Cit.
- mammalian expression vectors in particular those which have a polymerase III H1 RNA promoter and 5 to 9 so-called loops which are formed from a dsRNA according to the invention and a sequence of the same length which is reversely complementary to the dsRNA according to the invention and serves as a spacer and contain a sequence signal of 5 successive thymidine residues.
- the Vectors thus contain 5 to 9 copies of the respective dsRNA molecule.
- These can be dsRNAs that are specific for 1 target gene or dsRNAs that are specific for several different target genes.
- the oligoribonucleotides according to the invention can be in the form of the unmodified oligoribonucleotides. However, they are preferably oligoribonucleotides which are chemically modified at the level of the sugar residues, the nucleobases, the phosphate groups and / or the skeleton located between them, in order, for example, to increase the stability of the oligoribonucleotides in cosmetic or dermatological preparations and / or in the skin , e.g.
- oligoribonucleotides wherein one or more phosphate groups are replaced by phosphothioate, methylphosphonate and / or phosphoramidate groups, such as N3 '- P5' - phosphoramidate, are exchanged. Oligoribonucleotides in which phosphate groups are replaced by phosphothioate groups are particularly preferred.
- One or more of the phosphate groups of the oligoribonucleotide can be modified. In the case of a partial modification, terminal groups are preferably modified, but oligoribonucleotides in which all the phosphate groups have been modified are particularly preferred. This applies mutatis mutandis to the modifications described below.
- Preferred sugar modifications include the replacement of one or more ribose residues of the oligoribonucleotide with morpholine rings (morpholine oligoribonucleotides) or with amino acids (peptide oligoribonucleotides). All of the ribose residues of the oligoribonucleotide are preferably replaced by amino acid residues and in particular morpholine residues.
- Morpholine oligoribonucleotides in which the morpholine residues are particularly preferred are particularly preferred
- Sulphonyl or preferably phosphoryl groups are connected to one another, as can be seen in formula 1 or 2:
- B represents a modified or unmodified purine or pyrimidine base, preferably adenine, cytosine, guanine, or uracil,
- X represents O or S, preferably O,
- Y represents O or NJ-CH 3 , preferably O,
- Z stands for alkyl, O-alkyl, S-alkyl, NH 2 , NH (alkyl), NH (O-alkyl), N (alkyl) 2 , N (alkyl) (O-alkyl), preferably N (alkyl) 2 , where alkyl is linear or branched alkyl groups having 1 to 6, preferably 1 to 3 and particularly preferably 1 or 2 carbon atoms.
- Formulas 1 and 2 each represent only a section of an oligoribonucleotide chain.
- Morpholine oligoribonucleotides in which the morpholine residues are connected to one another via phosphoryl groups are very particularly preferred, as shown in Formula 2, in which X is O, Y is O and Z is N (CH 3 ) 2 .
- the ribose residues can be modified by amino residues, such as NH 2 , fluorine, alkyl or O-alkyl residues, such as OCH 3 , 2'-modified oligoribonucleotides being particularly preferred.
- amino residues such as NH 2 , fluorine, alkyl or O-alkyl residues, such as OCH 3
- 2'-modified oligoribonucleotides being particularly preferred.
- Exemplary modifications are 2 '-Fluoro-, 2' alkyl, 2'-0-alkyl-, 2 '-O- methoxyethyl modifications, 5' palmitate derivatives and 2 '-O-methylribonucleotides.
- the modification of the nucleotides of dsRNA counteracts activation of the protein kinase PKR in the cell, which is dependent on double-stranded RNA. This avoids unspecific inhibition of translation.
- substitution of at least one 2'-hydroxyl group of the nucleotides of the dsRNA by a 2'-amino or a 2'-methyl group is particularly suitable for this purpose.
- at least one nucleotide in at least one strand of the dsRNA can be replaced by a so-called "locked nucleotide" which contains a chemically modified sugar ring.
- a preferred modification of the sugar ring is a 2'-O, 4'-C-methylene bridge.
- dsRNA containing several "locked nucleotides" is preferred.
- alkyl here preferably represents linear, branched or cyclic alkyl groups having 1 to 30, preferably 1 to 20, particularly preferably 1 to 10 and very particularly preferably 1 to 6 carbon atoms.
- Branched and Cyclic radicals naturally have at least 3 carbon atoms, cyclic radicals having at least 5 and in particular at least 6 carbon atoms being preferred.
- the oligoribonucleotides contain one or more alpha-nucleosides. This makes the siRNA more stable and therefore more effective.
- Suitable base modifications are described, for example, in US Pat. No. 6,187,578 and WO 99/53101, to which reference is hereby expressly made.
- a modification of one or more pyrimidines in position 5 with I, Br, Cl, NH 3 and N 3 has proven to be advantageous.
- the synthesis of modified and unmodified oligoribonucleotides and other suitable modification options are described in the literature.
- the production of modified and unmodified oligoribonucleotides is now also offered as a service by numerous companies, for example by Dharmacon, 1376 Miners Dhve # 101, Lafayette, CO 80026, USA, Xeragon Inc., Genset Oligos and Ambion.
- the production of oligoribonucleotides is also described in US Pat. No. 5,986,084.
- the invention also encompasses a pharmaceutical or cosmetic composition containing one or more of the described oligoribonucleotides or a physiologically tolerable salt thereof and a corresponding composition for topical use.
- composition contains several oligoribonucleotides that inhibit the expression of several different structures involved in the pigmentation of skin and / or hair.
- such a composition contains several oligoribonucleotides which contain different sequence regions of one and the same gene, one of the actual melanin synthesis (melanosome structures; Tyrosianse, TRP-1, TRP-2, p-protein) and / or the expression of these melanosome structures (MITF) and / or the structure involved in the transfer of the melanosomes (into the keratinocytes) (PAR-2).
- the oligoribonucleotides and compositions are suitable for the treatment and prophylaxis of undesirable pigmentation of the skin and hair, in particular the symptoms described above. They are suitable for cosmetic and therapeutic Treatment of unwanted pigmentation caused by endogenous and exogenous factors, especially UV radiation.
- compositions according to the invention can prevent incorrect pigmentations and permanently remove existing (incorrect) pigmentations and without the risk of side effects.
- the method described in WO02 / 053773 can be used to determine the effectiveness of the oligoribonucleotides according to the invention.
- the oligoribonucleotides according to the invention are particularly suitable for the prevention and treatment of unwanted pigmentation of the skin, such as occurs in the form of chronically sun-damaged skin (age spots, "uneven skin tone"), but also in the case of freckles and melasma.
- they are suitable Oligoribonucleotides according to the invention for the prevention and treatment of sun exposure-related skin tanning and also for lightening the pigmentation of the hair.
- the oligoribonucleotides according to the invention are also suitable for lightening pigmentation which is appropriate to the skin type. Because of their prophylactic effect, the oligoribonucleotides and compositions according to the invention are also outstandingly suitable for skin care ,
- compositions can preferably be in the form of a solution, cream, ointment, lotion, hydrodispersion, lipodispersion, emulsion, Pickering emulsion, a gel, a solid stick or as an aerosol.
- Compositions for topical use are preferred according to the invention.
- the compositions can be in any galenic form commonly used for topical application, e.g.
- compositions according to the invention are suitable for cosmetic and therapeutic, ie in particular dermatological, use.
- the invention further comprises the use of an oligoribonucleotide or a physiologically compatible salt thereof or a preparation described for skin care or cosmetic or therapeutic treatment of undesired pigmentation of skin or hair and for the production of a cosmetic or therapeutic composition for topical application and for skin care or treatment of unwanted pigmentation of the skin or hair as well as for the treatment of changes or damage with regard to pigmentation on the skin or hair caused by UV radiation in the skin, dryness, roughness and flaccidity of the skin, wrinkling, the reduced regreasing by sebum glands , and an increased susceptibility to mechanical stress (cracking), for the treatment of photodermatosis, the symptoms of senile xerosis, photoaging and a breakdown of the connective tissue of the skin, which with undesirable pigmenti skin or hair.
- the oligoribonucleotides can also be used in encapsulated form, for example encapsulated in liposomes. They can also be stabilized by adding cyclodextrins.
- Cyclodextrins are also known as cycloamyloses and cycloglucans.
- the cyclodextrins are cyclic oligosaccharides consisting of ⁇ -1, 4 linked glucose units.
- six to eight glucose building blocks (-, ß- or ⁇ -cyclodextrin) are linked together.
- Cyclodextrins are obtained when Bacillus macerans acts on starch. They have a hydrophobic interior and a hydrophilic exterior. According to the invention, both the cyclodextrins themselves, in particular ⁇ -cyclodextrin, ⁇ -cyclodextrin and ⁇ -cyclodextrin, and derivatives thereof are suitable.
- the cyclodextrin (s) are preferably used in cosmetic and dermatological compositions in a concentration of 0.0005 to 20.0% by weight, in particular 0.01 to 10% by weight and particularly preferably in a concentration of 0.1 to 5.0% by weight.
- the cyclodextrin species which are particularly preferred according to the invention are ⁇ -cyclodextrin and hydroxypropyl- ⁇ -cyclodextrin.
- Polar cyclodextrins are also particularly preferred according to the invention.
- Liposomes can be prepared in a manner known per se using natural phospholipids, e.g. Produce phosphatidylcholine from eggs, soybeans, etc., or synthetic phospholipids (cf. G. Betageri (editor), "Liposome Drug Delivery Systems", Lancaster Techonomic Publishing Company 1993; Gregoriadis (editor), “Liposome Technology", CRC Press). Preferred methods and materials for the production of liposomes are described in WO 99/24018.
- Double-stranded oligoribonucleotides can also be modified to counter dissociation into the single strands, for example by one or more covalent, coordinative or ionic bonds. However, oligoribonucleotides without such modifications are preferred.
- the nucleotides in the RNA molecules can furthermore also comprise “non-standard” nucleotides, such as, for example, non-naturally occurring nucleotides or deoxyribonucleotides. It has surprisingly been found that the oligoribonucleotides, after the compositions have been applied to the skin, inhibit the expression of the genes which are responsible for the pigmentation of the skin, and thus prevent the formation and distribution of the skin's own pigment melanin without side effects and in this way enable effective treatment and prophylaxis of undesired pigmentation of the skin without showing the disadvantages of the prior art.
- compositions according to the invention can additionally contain one or more oligoribonucleotides which inhibit the expression of the protein kinase PKR and thus counteract non-specific inhibition of translation.
- compositions according to the invention are also suitable for the treatment of UV rays, e.g. the ultraviolet part of the sun's radiation, caused skin damage.
- UVB rays (290 to 320 nm) cause, for example, erythema, sunburn or even more or less severe burns.
- UVA rays (320 nm to 400 nm) can cause irritation to light-sensitive skin and lead to damage to the elastic and collagen fibers of the connective tissue, which causes the skin to age prematurely. They are also the cause of numerous phototoxic and photoallergic reactions.
- the oligoribonucleotides according to the invention are also suitable for the treatment of e.g.
- UV rays and functional disorders in the epidermis and dermis of the skin such as for example visible vascular dilatations such as telangiectasias and cuperosis, skin sagging and the formation of wrinkles, local hyper-, hypo- and incorrect pigmentations, such as e.g. B. age spots, and increased susceptibility to mechanical stress, such as Cracked skin.
- compositions according to the invention are the treatment and prevention of age and / or UV-induced collagen degeneration and the breakdown of elastin and glycosaminoglycans; of degenerative manifestations of the skin, such as loss of elasticity and loss of the epidermal and dermal cell layers, the components of the connective tissue, the reticles and capillary vessels) and / or the skin appendages; from environmental, for example caused by ultraviolet radiation, smoking, smog, reactive oxygen species, free radicals and the like, negative changes in the skin and the appendages of the skin; deficient, sensitive or hypoactive skin conditions or deficient, sensitive or hypoactive conditions of skin appendages; the reduction in skin thickness; from sagging and / or skin fatigue; changes in transepidermal water loss and normal skin moisture; change in the energy metabolism of healthy skin; deviations from normal cell-cell communication in the skin, which can manifest itself, for example, through the formation of wrinkles; changes in normal fibroblast and keratinocyte proliferation; of changes in normal
- Cosmetic skin care is primarily understood to mean that the natural function of the skin acts as a barrier against environmental influences (e.g. dirt, chemicals, microorganisms) and against the loss of the body's own substances (e.g. water, natural fats, electrolytes) is strengthened or restored. If this function is disturbed, there may be an increased absorption of toxic or allergenic substances or an infestation of microorganisms and, as a result, toxic or allergic skin reactions.
- the aim of skin care is also to compensate for the loss of fat and water in the skin caused by daily washing. This is especially important when the natural regeneration ability is insufficient.
- skin care products are intended to protect against environmental influences, especially sun and wind.
- compositions according to the invention therefore preferably contain those components which are suitable for the purposes mentioned.
- Such substances are known per se to the person skilled in the art.
- one or more antisense oligoribonucleotides can be incorporated into conventional cosmetic and dermatological preparations, which can be in various forms.
- the compositions according to the invention for cosmetic use are in the form of an emulsion, for example in the form of a cream, a lotion or a cosmetic milk.
- these contain further components such as fats, oils, waxes and / or other fat bodies, as well as water and one or more emulsifiers, as are usually used for such a type of formulation.
- Emulsions usually contain a lipid or oil phase, an aqueous phase and preferably also one or more emulsifiers.
- Compositions which also contain one or more hydrocolloids are particularly preferred.
- the compositions according to the invention preferably contain 0.001 to 35% by weight, particularly preferably 2 to 15% by weight of emulsifier, 0.001 to 45% by weight, particularly preferably 10 to 25% by weight of lipid and 10 to 95% by weight, particularly preferably 60 to 90% by weight of water.
- the lipid phase of the cosmetic or dermatological emulsions according to the invention can advantageously be selected from the following group of substances: (1) mineral oils, mineral waxes; (2) oils such as triglycerides of capric or caprylic acid, as well as natural oils such as e.g. Castor oil; (3) fats, waxes and other natural and synthetic fat bodies, preferably esters of fatty acids with low C alcohols, e.g.
- silicone oils such as dimethylpolysiloxanes, diethylpolysiloxanes, diphenylpolysiloxanes and mixed forms thereof.
- the term “low C number” here means preferably 1 to 5, particularly preferably 1 to 3 and very particularly preferably 3 carbon atoms.
- the oil phase of the emulsions of the present invention is advantageously selected from the group of the esters from saturated and / or unsaturated, branched and / or unbranched alkane carboxylic acids with a chain length of 3 to 30 carbon atoms and saturated and / or unsaturated, branched and / or unbranched alcohols a chain length of 3 to 30 carbon atoms, from the group of esters of aromatic carboxylic acids and saturated and / or unsaturated, branched and / or unbranched alcohols, of a chain length of 3 to 30 carbon atoms.
- ester oils can then advantageously be selected from the group of isopropyl myristate, isopropyl palmitate, isopropyl stearate, isopropyl oleate, n-butyl stearate, n-hexyl laurate, n-decyl oleate, isooctyl stearate, isononyl stearate, isononylisononanoate, 2-ethylhexyluryl stylate, 2-ethylhexyl palatate 2-octyldodecyl palmitate, oleyl oleate, olerlerucate, erucyl oleate, erucylerucate as well as synthetic, semisynthetic and natural mixtures of such esters, for example Jojoba oil.
- oil phase can advantageously be selected from the group of branched and unbranched hydrocarbons and waxes, the silicone oils, the dialkyl ethers, the
- the saturated or unsaturated, branched or unbranched alcohols and also the fatty acid triglycerides, especially the triglycerol esters of saturated and / or unbranched saturated, branched and / or unbranched alkane carboxylic acids with a chain length of 8 to 24, in particular 12-18 carbon atoms.
- the fatty acid triglycerides can, for example, advantageously be selected from the group of synthetic, semisynthetic and natural oils, for example olive oil, sunflower oil, soybean oil, peanut oil, rapeseed oil, almond oil, palm oil, coconut oil, palm kernel oil and the like.
- oil phase is advantageously selected from the group 2-ethylhexyl isostearate, octyldodecanol, isotridecylisononanoate, isoeicosane, 2-ethylhexyl cocoate, C 12-15 alkyl benzoate, caprylic capric acid triglyceride, dicaprylyl ether.
- Particularly advantageous are mixtures of C 12- i 5 alkyl benzoate and 2-ethylhexyl isostearate, mixtures of C ⁇ 2-15 alkyl benzoate and isotridecyl isononanoate and mixtures of C 12- 5 alkyl benzoate, 2-ethylhexyl isostearate and isotridecyl isononanoate.
- hydrocarbons paraffin oil, squalane and squalene can be used advantageously for the purposes of the present invention.
- the oil phase can advantageously also have a content of cyclic or linear silicone oils or consist entirely of such oils, although it is preferred to use an additional content of other oil phase components in addition to the silicone oil or the silicone oils.
- Such silicones or silicone oils can be present as monomers, which are generally characterized by structural elements, as follows:
- the silicon atoms can be substituted with the same or different alkyl radicals and / or aryl radicals, which are generally represented here by the radicals R 1 - R (to say that the number of different radicals is not necessarily limited to up to 4), m can be used here Accept values from 2 - 200,000. Unless otherwise stated, aryl is preferably phenyl herein.
- n can be Accept values from 3/2 to 20. Broken values for n take into account that there may be odd numbers of siloxyl groups in the cycle.
- Cyclomethicone e.g. decamethylcyclopentasiloxane
- silicone oils can also be used advantageously for the purposes of the present invention, for example undecamethylcyclotrisiloxane, polydimethylsiloxane, poly (methylphenylsiloxane), cetyldimethicone, behenoxydimethicone.
- silicone oils of a similar constitution to the compounds described above, the organic side chains of which are derivatized, for example polyethoxylated and / or polypropoxylated.
- silicone oils include, for example, polysiloxane-polyalkyl-polyether copolymers such as the cetyl-dimethicone copolyol, the (cetyl-dimethicone copolyol (and) polyglyceryl-4-isostearate (and) hexyl laurate).
- Mixtures of cyclomethicone and isotridecyl isononanoate, of cyclomethicone and 2-ethylhexyl isostearate are also particularly advantageous.
- the aqueous phase of the preparations according to the invention optionally advantageously contains alcohols, diols or polyols of low C number, and also their ethers, preferably ethanol, isopropanol, propylene glycol, glycerol, ethylene glycol, ethylene glycol monoethyl or monobutyl ether, propylene glycol monomethyl, monoethyl or monobutyl ether, diethylene glycol monomethyl - or monoethyl ether and analog products, furthermore alcohols with a low C number, for example Ethanol, isopropanol, 1, 2-propanediol, glycerol and in particular one or more thickeners, which one or more can advantageously be selected from the group consisting of silicon dioxide and aluminum silicates.
- alcohols, diols or polyols of low C number and also their ethers, preferably ethanol, isopropanol, propylene glycol, glycerol, ethylene
- Preparations according to the invention in the form of emulsions preferably contain one or more emulsifiers.
- emulsifiers can advantageously be selected from the group of nonionic, anionic, cationic or amphoteric emulsifiers.
- nonionic emulsifiers are (1) partial fatty acid esters and fatty acid esters of polyhydric alcohols and their ethoxylated derivatives (e.g. glyceryl monostearates, sorbitan stearates, glyceryl stearyl citrates, sucrose stearates); (2) ethoxylated fatty alcohols and fatty acids; (3) ethoxylated fatty amines, fatty acid amides, fatty acid alkanolamides; (4) alkylphenol polyglycol ether (e.g. Triton X).
- polyhydric alcohols and their ethoxylated derivatives e.g. glyceryl monostearates, sorbitan stearates, glyceryl stearyl citrates, sucrose stearates
- ethoxylated fatty alcohols and fatty acids e.g. glyceryl monostearates, sorbitan
- the anionic emulsifiers include soaps (e.g. sodium stearate); Fatty alcohol sulfates; Mono-, di- and trialkylphosphonic acid esters and their ethoxylates.
- the cationic emulsifiers include quaternary ammonium compounds with a long-chain aliphatic radical, for example distearyldimonium chloride.
- the amphoteric emulsifiers include alkylamininoalkane carboxylic acids, betaines, sulfobetaines, imidazoline derivatives.
- O / W emulsifiers can, for example, advantageously be selected from the group of the polyethoxylated or polypropoxylated or polyethoxylated and polypropoxylated products, for example the fatty alcohol ethoxylates, the ethoxylated wool wax alcohols, the polyethylene glycol ethers of the general formula RO - (- CH 2 -CH 2 -O- ) n -R ', the fatty acid ethoxylates of the general formula R-COO - (- CH 2 -CH 2 -O-) n -H, the etherified fatty acid ethoxylates of the general formula R-COO - (- CH 2 -CH 2 -O) n -R ', the esterified fatty acid ethoxylates of the general formula R-COO - (- CH 2 -CH 2 -O-) n -C (O) -R', the polyethylene glycol glycerol
- Polyoxyethylene sorbitol fatty acid esters the alkyl ether sulfates of the general formula RO - (- CH 2 -CH 2 -O-) n -SO 3 -H, the fatty alcohol propoxylates of the general formula RO - (- CH 2 - CH (CH 3 ) -O-) n - H, the polypropylene glycol ether of the general formula RO - (- CH 2 - CH (CH 3 ) -O-) n -R ', the propoxylated wool wax alcohols, the etherified fatty acid propoxylates, R-C00 - (- CH 2 -CH (CH 3 ) -O-) n -R ', the esterified
- Fatty acid propoxylates of the general formula R-COO - (- CH 2 -CH (CH 3 ) -O-) n -C (O) -R ' the fatty acid propoxylates of the general formula R-COO - (- CH 2 -CH (CH 3 ) -O-) n -H, the polypropylene glycol glycerol fatty acid ester, the propoxylated sorbitan esters, the cholesterol propoxylates, the propoxylated triglycerides, the alkyl ether carboxylic acids of the general formula RO - (- CH 2 -CH (CH 3 ) 0-) n -CH 2 -COOH, the alkyl ether sulfates or the acids on which these sulfates are based, of the general formula RO - (- CH 2 -CH (CH 3 ) - O-) n -SO 3 -H, the fatty alcohol ethoxylates / propoxy
- the variables n and m each independently represent an integer from 1 to 40, preferably 5 to 30.
- the polyethoxylated or polypropoxylated or polyethoxylated and polypropoxylated O / W emulsifiers selected from the group are particularly advantageous of the substances with HLB values of 11-18, very particularly advantageously with HLB values of 14.5-15.5, provided the O / W emulsifiers are saturated radicals R and R '. If the O / W emulsifiers have unsaturated radicals R and / or R ', or if isoalkyl derivatives are present, the preferred HLB value of such emulsifiers can also be lower or higher.
- fatty alcohol ethoxylates from the group of the ethoxylated stearyl alcohols, cetyl alcohols, cetylstearyl alcohols (cetearyl alcohols).
- cetyl alcohols cetylstearyl alcohols
- cetearyl alcohols cetearyl alcohols
- the sodium laureth-11 carboxylate can advantageously be used as the ethoxylated alkyl ether carboxylic acid or its salt.
- Sodium laureth 1-4 sulfate can advantageously be used as alkyl ether sulfate.
- Polyethylene glycol (30) cholesteryl ether can advantageously be used as the ethoxylated cholesterol derivative.
- Polyethylene glycol (25) soyasterol has also proven itself.
- polyethylene glycol glycerol fatty acid esters from the group polyethylene glycol (20) glyceryl laurate, polyethylene glycol (21) glyceryl laurate, polyethylene glycol (22) glyceryl laurate, polyethylene glycol (23) glyceryl laurate, polyethylene glycol (6) glyceryl caprat caprinat, polyethylene glycol (20) glyceryl oleate, polyethylene glycol
- sorbitan esters from the group consisting of polyethylene glycol (20) sorbitan monolaurate, polyethylene glycol (20) sorbitan monostearate, polyethylene glycol (20) sorbitan monoisostearate, polyethylene glycol (20) sorbitan monopalmitate, polyethylene glycol (20) sorbitan monooleate.
- W / O emulsifiers that can be used are: fatty alcohols with 8 to 30 carbon atoms, monoglycerol esters of saturated and / or unsaturated, branched and / or unbranched alkane carboxylic acids with a chain length of 8 to 24, in particular 12 to 18 carbon atoms, and diglycerol esters saturated and / or unsaturated, branched and / or unbranched alkane carboxylic acids with a chain length of 8 to 24, in particular 12 - 18 carbon atoms, monoglycerol ethers of saturated and / or unsaturated, branched and / or unbranched alcohols with a chain length of 8 to 24, in particular 12 - 18 C atoms, diglycerol ethers of saturated and / or unsaturated, branched and / or unbranched alcohols with a chain length of 8 to 24, in particular 12-18 C atoms, propylene glycol esters of saturated and / or unsaturated, branched and
- W / O emulsifiers are glyceryl monostearate, glyceryl monoisostearate, glyceryl monomyristate, glyceryl monooleate,
- Sorbitan monoisooleate sucrose distearate, cetyl alcohol, stearyl alcohol,
- Preparations according to the invention in the form of emulsions preferably also contain one or more hydrocolloids. These hydrocolloids can are advantageously chosen from the group of gums, polysaccharides, cellulose derivatives, layered silicates, polyacrylates and / or other polymers. Preparations according to the invention which are present as hydrogels contain one or more hydrocolloids. These hydrocolloids can advantageously be selected from the aforementioned group.
- Gums include plant or tree sap that harden in the air and form resins or extracts from aquatic plants. Gum arabic, locust bean gum, tragacanth, karaya, guar gum, pectin, gellan gum, carrageenan, agar, algine, chondrus, xanthan gum can advantageously be selected from this group for the purposes of the present invention.
- derivatized gums such as e.g. Hydroxypropyl guar (Jaguar® HP 8).
- polysaccharides and derivatives are e.g. Hyaluronic acid, chitin and chitosan, chondroitin sulfates, starch and starch derivatives.
- cellulose derivatives are e.g. Methyl cellulose, carboxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl methyl cellulose.
- Layered silicates contain naturally occurring and synthetic clays such as Montmorillonite, bentonite, hectorite, laponite,
- Magnesium aluminum silicates such as Veegum®. These can be used as such or in a modified form such as e.g. Stearylalkonium hektorite.
- silica gels can also advantageously be used.
- the polyacrylates include e.g. Carbopol types from Goodrich (Carbopol 980, 981, 1382, 5984, 2984, EDT 2001 or Pemulen TR2).
- polymers e.g. Polyacrylamides (Seppigel 305), polyvinyl alcohols, PVP, PVP / VA copolymers, polyglycols.
- the oligoribonucleotides used according to the invention are inserted into aqueous systems or surfactant preparations for cleaning the skin and hair.
- the cosmetic preparations according to the invention preferably also contain auxiliaries such as are usually present in such Preparations are used, for example preservatives, bactericides, deodorizing substances, antiperspirants, insect repellents, vitamins, anti-foaming agents, dyes, pigments with a coloring effect, thickeners, softening substances, moisturizing and / or moisturizing substances (moisturizers), or other conventional Components of a cosmetic formulation such as polyols, polymers, foam stabilizers, electrolytes, organic solvents or silicone derivatives, antioxidants and in particular UV absorbers.
- auxiliaries such as are usually present in such Preparations are used, for example preservatives, bactericides, deodorizing substances, antiperspirants, insect repellents, vitamins, anti-foaming agents, dyes, pigments with a coloring effect
- Moisturizers are substances or mixtures of substances that give cosmetic or dermatological preparations the property of reducing the release of moisture from the horny layer (also known as trans-epidermal water loss (TEWL)) and / or hydrating the skin after application or distribution on the skin surface To influence the horny layer positively.
- Advantageous moisturizers for the purposes of the present invention are, for example, glycerol, lactic acid, pyrrolidone carboxylic acid and urea.
- polymeric moisturizers from the group of water-soluble and / or water-swellable and / or water-gellable polysaccharides.
- glycerin is preferably used in an amount of 0.05-30% by weight, particularly preferably 1-10%.
- the cosmetic compositions can advantageously also contain one or more of the following natural active ingredients or a derivative thereof: alpha-lipoic acid, phytoene, D-biotin, coenzyme Q10, alpha glucosylrutin, camitin, camosin, natural and / or synthetic isoflavonoids, creatine, hop or hop-malt extract, taurine.
- active ingredients that positively influence aging skin which reduce the formation of wrinkles or existing wrinkles, such as bioquinones and especially ubiquinone Q10, soy, creatinine, creatine, liponamide, or promote the restructuring of connective tissue, such as isoflavone, in the Formulations according to the invention can be used very well.
- formulations are particularly suitable for combination with active ingredients to support skin functions in dry skin, in particular dry skin such as serinol and osmolytes, for example taurine.
- active ingredients for the relief or positive influencing of irritative skin conditions, be it advantageous for sensitive skin in general or for skin irritated by noxious substances (UV light, chemicals).
- Active substances such as sericosides, various extracts of liquorice, licochalcone, in particular licochalcone A, silymarin, silyphos, dexpanthenol, inhibitors of prostaglandin metabolism (especially cyclooxygenase) and leukotriene metabolism (especially 5-lipoxygenase, but also 5-lipoxygen) are to be mentioned here Inhibitor Proteins, FLAP).
- licochalcone in particular licochalcone A, silymarin, silyphos, dexpanthenol
- inhibitors of prostaglandin metabolism especially cyclooxygenase
- leukotriene metabolism especially 5-lipoxygenase, but also 5-lipoxygen
- FLAP Inhibitor Proteins
- compositions according to the invention contain one or more UV absorbers.
- Preferred UV absorbers are those which absorb in the range of UVB and / or UVA rays.
- UVB radiation which are derivatives of 3-benzylidene camphor, 4-aminobenzoic acid, cinnamic acid, salicylic acid, benzophenone and also 2-phenylbenzimidazole. Filters with an absorption maximum in the range of 308 nm are preferred, since this is where the maximum erythema effectiveness of sunlight lies.
- UV-A filter substances for the purposes of the present invention are dibenzoylmethane derivatives, in particular 4- (tert-butyl) -4'-methoxydibenzoylmethane (CAS-Nr. 70356-09-1), marketed by Givaudan under the trade name Parsol ® 1789 and is sold by Merck under the trade name Eusolex® 9020.
- dibenzoylmethane derivatives in particular 4- (tert-butyl) -4'-methoxydibenzoylmethane (CAS-Nr. 70356-09-1), marketed by Givaudan under the trade name Parsol ® 1789 and is sold by Merck under the trade name Eusolex® 9020.
- the preparations according to the invention advantageously contain substances that absorb UV radiation in the UV-A and / or UV-B range, the total amount of filter substances, for. B. 0.1% by weight to 30% by weight, preferably 0.5 to 20% by weight, in particular 1.0 to 15.0% by weight, based on the total weight of the preparations, for cosmetic purposes
- the hair or the Protect skin from the entire range of ultraviolet radiation can also serve as sunscreens for the hair or skin.
- UV-A filter substances are phenylene-1,4-bis (2-benzimidazyl) -3,3'-5,5'-tetrasulfonic acid
- salts especially the corresponding sodium, potassium or triethanolammonium salts, in particular the phenylene-1,4-bis (2-benzimidazyl) -3,3'- 5,5'-tetrasulfonic acid bis-sodium salt
- 1,4-di (2-oxo-10-sulfo-3-bornylidenemethyl) benzene and its salts especially the corresponding 10-sulfato compounds, especially the corresponding sodium, potassium or triethanolammonium salt
- benzene-1,4-di (2-oxo-3-bomylidenemethyl-10-sulfonic acid) is also called benzene-1,4-di (2-oxo-3-bomylidenemethyl-10-sulfonic acid) and is characterized by the following structure:
- Advantageous UV filter substances in the sense of the present invention are also so-called broadband filters, ie filter substances that absorb both UV-A and UV-B radiation.
- Advantageous broadband filters or UV-B filter substances are, for example, bis-resorcinyltriazine derivatives with the following structure:
- R 1 , R 2 and R 3 are independently selected from the group of branched and unbranched alkyl groups having 1 to 10 carbon atoms or represent a single hydrogen atom.
- Particularly preferred are the 2,4-bis - ⁇ [4- (2-ethylhexyloxy) -2-hydroxy] phenyl ⁇ -6- (4-methoxyphenyl) -1,3,5-triazine (INCI: Aniso triazine ), which is available under the trade name Tinosorb® S from CIBA-Chemicals GmbH, and the 4,4 ', 4 "- (1,3,5-triazine-2,4,6-triyltriimino) -tris-benzoic acid- tris (2-ethylhexyl ester), synonymous: 2,4,6-tris [anilino- (p-carbo-2'-ethyl-1'-hexyloxy)] - 1,3,5-triazine (INCI: oct
- UV filter substances which the structural motif
- UV filter substances for the purposes of the present invention, for example the s-triazine derivatives described in European patent application EP 570 838 A1, the chemical structure of which is given by the generic formula
- R represents a branched or unbranched CC 18 alkyl radical, a C 5 -C 12 cycloalkyl radical, optionally substituted with one or more C r C 4 alkyl groups,
- X represents an oxygen atom or an NH group,
- Ri is a branched or unbranched C 1 -C 18 alkyl radical, a C 5 -C 12 cycloalkyl radical, optionally substituted with one or more CC 4 alkyl groups, or a hydrogen atom, an alkali metal atom, an ammonium group or a group of the formula means in which
- A represents a branched or unbranched CC 18 alkyl radical, a C 5 -C 2 cycloalkyl or aryl radical, optionally substituted by one or more C 1 -C 4 alkyl groups,
- R 3 represents a hydrogen atom or a methyl group
- n represents a number from 1 to 10
- a branched or unbranched C 1 -C 8 -alkyl radical a C 5 -C 12 cycloalkyl radical, optionally substituted by one or more CC 4 - represents alkyl groups when X represents the NH group
- a branched or unbranched CC 18 alkyl radical a C 5 -C 12 cycloalkyl radical, optionally substituted with one or more C 1 -C 4 alkyl groups, or a hydrogen atom, an alkali metal atom, an ammonium group or a group of the formula
- A represents a branched or unbranched CrC 18 alkyl radical, a C 5 -C 2 cycloalkyl or aryl radical, optionally substituted by one or more CC 4 alkyl groups,
- R 3 represents a hydrogen atom or a methyl group
- n represents a number from 1 to 10 when X represents an oxygen atom.
- a particularly advantageous UV filter substance in the sense of the present invention is also an asymmetrically substituted s-triazine, the chemical structure of which is represented by the formula
- dioctylbutylamidotnazon (INCI: dioctylbutamidotriazone) and is available under the trade name UVASORB HEB from Sigma 3V.
- EP 775 698 also describes bis-resorcinyltriazine derivatives which are to be used advantageously and whose chemical structure is represented by the generic formula
- R 1 , R 2 and Ai represent a wide variety of organic radicals.
- R 1 , R 2 and Ai represent a wide variety of organic radicals.
- R 1 , R 2 and Ai represent a wide variety of organic radicals.
- An advantageous broadband filter for the purposes of the present invention is 2,2'-methylene-bis- (6- (2H-benzotriazol-2-yl) -4- (1,1,3,3-tetramethylbutyl) phenol) [INCI : Bisoctyltriazoi], which is characterized by the chemical structural formula
- Tinosorb® M is identified and is available under the trade name Tinosorb® M from CIBA Chemical GmbH.
- Another advantageous broadband filter for the purposes of the present invention is 2- (2H-benzotriazol-2-yl) -4-methyl-6- [2-methyl-3- [1,3,3,3-tetramethyl-1 - [( trimethylsilyl) oxy] disiloxanyl] propyl] phenol (CAS No .: 155633-54-8) with the INCI name Drometrizole Trisiloxane, which is characterized by the chemical structural formula
- the UV-B filters can be oil-soluble or water-soluble.
- Advantageous oil-soluble UV-B filter substances are e.g. E.g .: 3-benzylidene camphor derivatives, preferably 3- (4-methylbenzylidene) camphor, 3-benzylidene camphor; 4-aminobenzoic acid derivatives, preferably 4- (dimethylamino) benzoic acid (2-ethylhexyl) ester, 4-
- Advantageous water-soluble UV-B filter substances are e.g. B. salts of 2-phenylbenzimidazole-5-sulfonic acid, such as its sodium, potassium or triethanolammonium salt, and the sulfonic acid itself; Sulfonic acid derivatives of 3-benzylidene camphor, such as. B. 4- (2-oxo-3-bornylidene methyl) benzenesulfonic acid, 2-methyl-5- (2-oxo-3-bomylidene methyl) sulfonic acid and salts thereof.
- a further light protection filter substance to be used advantageously according to the invention is ethylhexyl-2-cyano-3,3-diphenylacrylate (octocrylene), which is available from BASF under the name Uvinul ® N 539 and is distinguished by the following structure:
- Benzoxazole derivatives such as, in particular, 2,4-bis- [5-1 (dimethylpropyl) benzoxazol-2-yl- (4-phenyl) -imino] -6- (2-ethylhexyl) -imino-1 are also particularly advantageous according to the invention , 3,5-triazine with the CAS No. 288254-16-0, which is available, for example, under the trade name Uvasorb® K2A, and hydroxybenzophenones such as, in particular, the 2- (4'-diethylamino-2'-hydoxybenzoyl) benzoic acid hexyl ester or also Aminobenzophenone, which is available under the Uvinul A Plus.
- compositions according to the invention can furthermore contain antioxidants to protect the cosmetic preparation itself or to protect the constituents of the cosmetic preparation from harmful oxidation processes.
- the antioxidants are advantageously selected from the group consisting of amino acids (eg glycine, histidine, tyrosine, tryptophan) and their derivatives, imidazoles (eg urocanic acid) and their derivatives, peptides such as D, L-carnosine, D-carnosine, L- Carnosine and its derivatives (e.g. anserine), carotenoids, carotenes (e.g. ⁇ -carotene, ß-carotene, lycopene) and their derivatives, retinol, aurothioglucose, propylthiouracil and other thiols (e.g.
- amino acids eg glycine, histidine, tyrosine, tryptophan
- imidazoles eg urocanic acid
- peptides such as D, L-carnosine, D-carnosine, L- Carnosine and its derivatives (e.g. an
- buthionine sulfoximines in very low tolerable doses (e.g. pmol to ⁇ mol / kg), also (metal) chelators (e.g. ⁇ -hydroxy fatty acids, palmitic acid, phytic acid, lactoferrin), ⁇ -hydroxy acids (e.g.
- citric acid lactic acid, malic acid
- Humic acid bile acid, bile extracts, bilirubin, biliverdin, EDTA, EGTA and their derivatives
- unsaturated fatty acids and their derivatives eg ⁇ -linolenic acid, linoleic acid, oleic acid
- folic acid and their derivatives alanine diacetic acid, flavonoi de, polyphenols, catechins, vitamin C and derivatives (e.g. ascorbyl palmitate, Mg ascorbyl phosphate, ascorbyl acetate), tocopherols and derivatives (e.g.
- vitamin E acetate vitamin E acetate
- zinc and its derivatives e.g. ZnO, ZnSO 4
- selenium and its derivatives e.g. seleni
- the amount of the antioxidants (one or more compounds) in the preparations is preferably 0.001 to 30% by weight, particularly preferably 0.05 to 20% by weight, in particular 1 to 10% by weight, based on the total weight of the preparation .
- Cosmetic and therapeutic preparations according to the invention advantageously also contain inorganic pigments based on metal oxides and / or other metal compounds which are sparingly soluble or insoluble in water, in particular the oxides of titanium (TiO 2 ), zinc (ZnO), iron (eg Fe 2 O 3 ), zirconium (ZrO 2 ), silicon (SiO 2 ), manganese (eg MnO), aluminum (Al 2 O 3 ), cerium (eg Ce 2 O 3 ), mixed oxides of the corresponding metals and mixtures of such oxides. It is particularly preferably pigments based on TiO 2 .
- the inorganic pigments are in hydrophobic form, ie that they are are treated to be water-repellent on the surface.
- This surface treatment can consist in that the pigments are provided with a thin hydrophobic layer by methods known per se.
- One such method consists, for example, in that the hydrophobic surface layer according to a direction
- n and m are stoichiometric parameters to be used at will, R and R 'are the desired organic residues.
- hydrophobized pigments shown in analogy to DE-OS 33 14 742 are advantageous.
- Advantageous TiO 2 pigments are available, for example, under the trade names MT 100 T from TAYCA, M 160 from Kemira and T 805 from Degussa.
- Preparations according to the invention can also contain anionic, nonionic and / or amphoteric surfactants, especially if crystalline or microcrystalline solids, for example inorganic micropigments, are to be incorporated into the preparations according to the invention.
- Surfactants are amphiphilic substances that can dissolve organic, non-polar substances in water.
- the hydrophilic parts of a surfactant molecule are mostly polar functional groups, for example -COO " , -OSO 3 2" , -SO 3 " , while the hydrophobic parts generally represent non-polar hydrocarbon residues.
- Surfactants are generally classified according to Art and charge of the hydrophilic part of the molecule, and four groups can be distinguished here, namely anionic surfactants, cationic surfactants, amphoteric surfactants and nonionic surfactants
- Anionic surfactants generally have carboxylate, sulfate or sulfonate groups as functional groups. In an aqueous solution they form negatively charged organic ions in an acidic or neutral environment. Cationic surfactants are characterized almost exclusively by the presence of a quaternary ammonium group. In aqueous solution they form positively charged organic in an acidic or neutral environment Ions. Amphoteric surfactants contain both anionic and cationic groups and accordingly behave like anionic or cationic surfactants in aqueous solution depending on the pH. They have a positive charge in a strongly acidic environment and a negative charge in an alkaline environment. In the neutral pH range, however, they are zwitterionic, as the following example should illustrate:
- Non-ionic surfactants do not form ions in an aqueous medium.
- Acylamino acids such as (1) acylglutamates, for example sodium acylglutamate, di-TEA-palmitoylaspartate and sodium caprylic / capric glutamate; (2) acyl peptides, for example palmitoyl-hydrolyzed milk protein, sodium cocoyl-hydrolyzed soy protein and sodium / potassium cocoyl-hydrolyzed collagen; (3) sarcosinates, for example myristoyl sarcosin, TEA-lauroyl sarcosinate, sodium lauroyl sarcosinate and sodium cocoyl sarcosinate; (4) taurates, e.g. sodium lauroyl taurate and sodium methyl cocoyl taurate; (5) acyl lactylates such as lauroyl lactylate and caproyl lactylate; (6) alaninates;
- acylglutamates for example sodium acylglutamate, di-TEA-
- Carboxylic acids and derivatives such as lauric acid, aluminum stearate, magnesium alkanolate and zinc undecylenate; Ester carboxylic acids, e.g. calcium stearoyl lactylate, laureth-6 citrate and sodium PEG-4 lauramide carboxylate; ether Carboxylic acids, for example sodium laureth-13 carboxylate and sodium PEG-6 cocamide carboxylate;
- Carboxylic acids, ester carboxylic acids and ether carboxylic acids preferably contain 1 to 50 and in particular 2 to 30 carbon atoms.
- Phosphoric acid esters and salts such as, for example, DEA-oleth-10-phosphate and dilureth-4-phosphate;
- Sulfonic acids and salts such as (1) acyl isethionates, for example sodium / ammonium cocoyl isethionate; (2) alkylarylsulfonates; (3) alkyl sulfonates, e.g.
- Sulfuric acid esters such as (1) alkyl ether sulfate, for example sodium, ammonium,
- Cationic surfactants to be used advantageously are alkylamines, alkylimidazoles, ethoxylated amines and quaternary surfactants and esterquats.
- Quaternary surfactants contain at least one N atom that is covalently linked to 4 alkyl or aryl groups. Regardless of the pH value, this leads to a positive charge.
- Alkyl betaine, alkyl amidopropyl betaine and alkyl amidopropyl hydroxysulfain are advantageous.
- the cationic surfactants used according to the invention can furthermore preferably be selected from the group of the quaternary ammonium compounds, in particular benzyltrialkylammonium chlorides or bromides, such as, for example, benzyldimethylstearylammonium chloride, furthermore alkyltrialkylammonium salts, for example cetyltrimethylammonium chloride or bromide, alkyldimethylchloride bromide or alkyldimethylchloride bromide or alkyldimethylchloride bromide or alkyldimethylchloride bromide, Alkylamidethyltrimethylammonium ether sulfates, alkylpyridinium salts, for example lauryl or cetylpyrimidinium chloride, imidazoline derivatives and compounds with a cationic character such as amine oxides, for example alkyldimethylamine oxides or alkylaminoethyldimethylamine oxides
- Amphoteric surfactants to be used advantageously are (1) acyl / dialkylethylene diamine, for example sodium acylamphoacetate, disodium acylamphodipropionate, disodium alkyl amphodiacetate, sodium acylamphohydroxypropyl sulfonate, disodium acylamphodiacetate and sodium acylamphopropionate; (2) N-alkyl amino acids, for example aminopropyl alkyl glutamide, alkyl aminopropionic acid, sodium alkyl imidodipropionate and
- Nonionic surfactants to be used advantageously are (1) alcohols; (2) alkanolamides such as Cocamide MEA DEA / MIPA; (3) amine oxides such as cocoamidopropylamine oxide; (4) esters formed by esterification of carboxylic acids with ethylene oxide, glycerin, sorbitan or other alcohols; (5) ethers, for example ethoxylated / propoxylated alcohols, ethoxylated / propoxylated esters, ethoxylated / propoxylated glycerol esters, ethoxylated / propoxylated cholesterols, ethoxylated / propoxylated triglyceride esters, ethoxylated propoxylated lanolin, ethoxylated / propoxylated polysiloxanes, propoxylated POE ethers and alkyl decoylglyglycosyl glycosyl
- the surface-active substance can be present in the preparations according to the invention in a concentration between 1 and 95% by weight, based on the total weight of the preparations.
- Preparations for medical use do not differ in their composition from the cosmetic products and can also contain the substances mentioned above. They differ from them primarily in that they have to go through a special approval process.
- phase inversion temperature emulsions (PIT emulsions) of the composition likewise given were prepared.
- the oligoribonucleotide used was dsRNA, which was obtained by hybridizing the sequences SEQ ID NOs 37 and 38.
- the dsRNA has two protruding dT residues at each 3 '.
- the dsRNA is specific for the cDNA of tyrosinase and inhibits the expression of the gene of this enzyme by RNA interference. It is therefore called anti-Tyrosian dsRNA.
- anti-Tyrosian dsRNA The other abbreviations used in the examples are to be understood accordingly.
- a PIT emulsion was prepared using dsRNA, which was obtained by hybridizing the sequences SEQ NOs 44 and 45.
- the quantities of anti-tyrosinase dsRNA relate to the total amount of dsRNA, which is composed in equal parts of the respective sequences mentioned (SEQ IDs).
- creams of the composition were prepared.
- a cream was prepared using anti-tyrosinase dsRNA, which was obtained by hybridizing the sequences SEQ NOs 43 and 45.
- the amount of anti-tyrosinase dsRNA, anti-PAR-2 dsRNA, anti-MITF-dsRNA and anti-P-protein dsRNA relate to the total amount of dsRNA, which is equal parts from the respective sequences mentioned (SEQ IDs) to form the individual target genes.
- Example 3 Preparation of water-in-oil emulsions
- water-in-oil emulsions of the composition likewise given were prepared.
- the oligoribonucleotide used was dsRNA, which was obtained by hybridizing the sense RNA and antisense RNA strand to SEQ ID NO 40.
- SEQ ID NO 40 is a section of the tyrosinase cDNA. The two strands of the dsRNA each had two 2'-deoxythymidine residues at the 3 'position.
- Table 3 W / O emulsions
- Example 4 Preparation of hydrodispersions By mixing the components listed in the table, hydrodispersions of the composition likewise given were prepared.
- the oligoribonucleotide used was dsRNA, which was obtained by hybridizing the sense RNA and antisense RNA strand to cDNA of the PAR-2.
- SEQ ID NOs 115 and 117 is a section of the PAR-2 cDNA.
- the two strands of the dsRNA each had two 2'-deoxythymidine residues at the 3 'position.
- the quantities of anti-PAR-2 dsRNA relate to the total amount of dsRNA, which is composed in equal parts of the respective sequences mentioned (SEQ IDs).
- Example 5 Preparation of a gel cream By mixing the components specified in the table, a gel cream of the composition likewise given was prepared. The pH of the gel cream was then adjusted to 6.0.
- a gel cream was prepared using dsRNA, which was obtained by hybridizing the sequences SEQ NOs 38 and 39.
- the amount of anti-tyrosinase dsRNA is based on the total amount dsRNA, which is composed in equal parts of the respective sequences mentioned (SEQ IDs).
- Example 6 Preparation of a cream based on a water-in-oil emulsion. By mixing the components given in the table, a cream of the composition likewise given was prepared on the basis of a water-in-oil dispersion. Table 6: W / O cream
- Example 7 Preparation of a cream based on a water-in-oil-in-water emulsion
- a cream of the composition likewise specified was prepared on the basis of a water-in-oil-in-water dispersion.
- the oligoribonucleotide used was dsRNA, which was obtained by hybridizing the sense RNA and antisense RNA strand to SEQ ID NO 38. The two strands of the dsRNA each had two 2'-deoxythymidine residues at the 3 'position.
- FIG. 1 shows the single-stranded cDNA of tyrosinase related protein-1 (TRP-1), in which all fragments of the form AA-N 19 -TT and AA-N 19 -TC are optically highlighted.
- TRP-1 tyrosinase related protein-1
- FIG. 2 These fragments (targeted region) are shown in FIG. 2 together with the corresponding homologous (senseRNA) and complementary (antisenseRNA) RNA single strands.
- Single-stranded RNAs are shown which are modified on the 3 ′ side by two deoxythymidine residues (dt).
- the hybridization of two complementary single-stranded RNAs results in dsRNA with protruding 3 'ends, which are each formed by two 21-deoxythymidine residues.
- the representation shown here is exemplary for SEQ ID NO 1 and SEQ ID NO 22, with the respective sense RNA being shown with 1a and 22a and the respective antisense RNA with 1b and 22b.
- the respective dsRNA from SEQ ID NO 1 or SEQ ID NO 22 is formed from 1a and 1b or 22a and 22b.
- the formation of the dsRNA of the other sequences is carried out analogously.
- the gene of tyrosinase related protein-1 is one of the preferred target genes for the oligoribonucleotides according to the invention. Accordingly, oligoribonucleotides which are homologous to the double-stranded sequence derived from the sequence shown in FIG. 1, sections thereof and in particular to the double-stranded sequences derived from the sections highlighted in FIG. 1 are particularly preferred according to the invention.
- the double-stranded sequence derived from the sequence shown in FIG. 1 is understood to mean the sequence which is formed from the sequence shown in FIG. 1 and the strand complementary thereto. The other information is to be understood accordingly.
- Tyrosinase is one of the most preferred genes.
- a preferred sequence region ie a sequence region with a length of 19 nucleotides, which is flanked by AA and TT or TC, is emphasized; the representation is analogous to Fig. 1.
- Oligoribonucleotides belonging to the double-stranded sequence derived from the sequence shown in FIG. 3, sections thereof and in particular to that double-stranded sequences which are derived from the region highlighted in FIG. 3 are also preferred according to the invention.
- the single-stranded cDNA of the tyrosinase-like protein 2 can be seen in FIG.
- a preferred sequence range i.e. a sequence region with a length of 19 nucleotides, which is flanked by AA and TT or TC, is highlighted; the representation is analogous to Fig. 1.
- Oligoribonucleotides which are homologous to the double-stranded sequence derived from the sequence shown in FIG. 4, sections thereof and in particular to the double-stranded sequence derived from the region highlighted in FIG. 4 are likewise preferred according to the invention.
- the respective dsRNA is formed analogously to FIG. 2.
- the single-stranded cDNA of the MITF can be seen in FIG. Again, a preferred sequence range, i.e. a sequence region with a length of 19 nucleotides, which is flanked by AA and TT or TC, is highlighted; the representation is analogous to Fig. 1. Oligoribonucleotides which are homologous to the double-stranded sequence derived from the sequence shown in FIG. 5, sections thereof and in particular to the double-stranded sequence derived from the region highlighted in FIG. 5 are likewise preferred according to the invention. The respective dsRNA is formed analogously to FIG. 2.
- the single-stranded cDNA of the P protein can be seen in FIG. Again, a preferred sequence range, i.e. a sequence region with a length of 19 nucleotides, which is flanked by AA and TT or TC, is highlighted; the representation is analogous to Fig. 1. Oligoribonucleotides which are homologous to the double-stranded sequence derived from the sequence shown in FIG. 6, sections thereof and in particular to the double-stranded sequence derived from the region highlighted in FIG. 6 are likewise preferred according to the invention. The respective dsRNA is formed analogously to FIG. 2.
- the single-stranded cDNA of the PAR-2 can be seen in FIG.
- a preferred sequence region ie a sequence region with a length of 19 nucleotides, which is flanked by AA and TT or TC, is emphasized; the representation is analogous to Fig. 1.
- Oligoribonucleotides leading to the double-stranded sequence derived from the sequence shown in FIG. 7, sections thereof and in particular to the double-stranded sequence coming from the region highlighted in FIG. 7 are homologous, are also preferred according to the invention.
- the respective dsRNA is formed analogously to FIG. 2.
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Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2003151149 DE10351149A1 (de) | 2003-11-03 | 2003-11-03 | Oligoribonukleotide zur Behandlung von unerwünschter Pigmentierung der Haut und der Haare durch RNA-Interferenz |
| PCT/EP2004/012422 WO2005042031A2 (de) | 2003-11-03 | 2004-11-03 | Oligoribonukleotide zur behandlung von unerwünschter pigmentierung der haut und der haare durch rna-interferenz |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1682187A2 true EP1682187A2 (de) | 2006-07-26 |
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ID=34530030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04797559A Withdrawn EP1682187A2 (de) | 2003-11-03 | 2004-11-03 | Oligoribonukleotide zur behandlung von unerw nschter pigment ierung der haut und der haare durch rna-interferenz |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1682187A2 (de) |
| DE (1) | DE10351149A1 (de) |
| WO (1) | WO2005042031A2 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2890859B1 (fr) | 2005-09-21 | 2012-12-21 | Oreal | Oligonucleotide d'arn double brin inhibant l'expression de la tyrosinase |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995007924A1 (en) * | 1993-09-17 | 1995-03-23 | Andy Shih | Ribozyme-based compositions for the modification of cutaneous phenotypes associated with aging and other conditions of the skin and hair |
| AU7286696A (en) * | 1995-10-13 | 1997-05-07 | F. Hoffmann-La Roche Ag | Antisense oligomers |
| DE19750702A1 (de) * | 1997-11-15 | 1999-05-27 | Hoechst Marion Roussel De Gmbh | Antisense Oligonucleotide gegen Tenascin zur Behandlung von Vitiligo |
| FR2804960B1 (fr) * | 2000-02-11 | 2005-06-24 | Lvmh Rech | Nouveaux oligonucleotides et utilisation d'oligonucleotides modulant l'expression de la tyrosinase et de la tyrosinase- related-protein 1 comme agents depigmentants |
| US20030084471A1 (en) * | 2000-03-16 | 2003-05-01 | David Beach | Methods and compositions for RNA interference |
| KR20020097198A (ko) * | 2000-03-17 | 2002-12-31 | 베니텍 오스트레일리아 리미티드 | 유전자 사일런싱 |
| ES2336887T5 (es) * | 2000-03-30 | 2019-03-06 | Whitehead Inst Biomedical Res | Mediadores de interferencia por ARN específicos de secuencias de ARN |
| US20030104401A1 (en) * | 2001-11-12 | 2003-06-05 | Epiclone, Inc. | Gene silencing using sense DNA and antisense RNA hybrid constructs |
-
2003
- 2003-11-03 DE DE2003151149 patent/DE10351149A1/de not_active Withdrawn
-
2004
- 2004-11-03 EP EP04797559A patent/EP1682187A2/de not_active Withdrawn
- 2004-11-03 WO PCT/EP2004/012422 patent/WO2005042031A2/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2005042031A3 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2005042031A2 (de) | 2005-05-12 |
| WO2005042031A3 (de) | 2005-09-09 |
| DE10351149A1 (de) | 2005-06-30 |
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