EP1297001A1 - Peptides lineaires amphipathiques et les compositions les contenant - Google Patents
Peptides lineaires amphipathiques et les compositions les contenantInfo
- Publication number
- EP1297001A1 EP1297001A1 EP01951760A EP01951760A EP1297001A1 EP 1297001 A1 EP1297001 A1 EP 1297001A1 EP 01951760 A EP01951760 A EP 01951760A EP 01951760 A EP01951760 A EP 01951760A EP 1297001 A1 EP1297001 A1 EP 1297001A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- seq
- cit
- peptide
- residues
- amino acid
- 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- Withdrawn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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Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K7/00—Peptides having 5 to 20 amino acids in a fully defined sequence; Derivatives thereof
- C07K7/04—Linear peptides containing only normal peptide links
- C07K7/08—Linear peptides containing only normal peptide links having 12 to 20 amino acids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
- A61P31/04—Antibacterial agents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
- A61P31/12—Antivirals
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
Definitions
- the present invention relates to linear peptides and their use for vectorizing active substances. More particularly, the invention relates to strongly amphipathic linear peptides derived from antibiotic peptides or their analogs.
- the subject of the invention is also new compounds formed from a linear amphipathic peptide linked to at least one active substance, as well as the preparation of these compounds and the compositions containing them.
- One of the priorities for work in this area is to find effective means to increase the penetration efficiency of active substances, whether they are conventional molecules, peptides, proteins, or even nucleic acids such as oligonucleotides in living cells.
- Protinrin and tachyplesin are natural peptides whose structure is of the hairpin type maintained by disulfide bridges. These bridges play a role important in the cytolytic activity observed on human cells.
- the research carried out by the Applicant on these peptides has enabled it to discover that an irreversible reduction of these disulfide bridges makes it possible to generate linear peptides which have the property of passing quickly through cell membranes.
- These linear peptides and their use as a vector for active substances are described in the international PCT patent application published under No. WO99 / 07728.
- the Applicant has now sought to define new amino acid sequences capable of serving as a vector for internalization and addressing of active substances and, for this purpose, several peptides having improved physicochemical properties have been synthesized.
- the subject of the invention is therefore a linear peptide containing or consisting of a derivative of an antibiotic peptide by:
- antibiotic peptides is intended to mean peptides of more than 5 to 7 amino acids having cytolytic activity on human or animal cells. These are naturally occurring peptides or synthetic peptides and fragments thereof. The invention particularly contemplates peptides derived from protectin and tachyplesin, an analogue or a fragment thereof.
- the peptides of the invention lack a disulfide bridge such as those described for example in the international patent application PCT published under No. WO99 / 07728.
- the absence of disulfide bridges in the peptides of the invention can be obtained by any technique known to a person skilled in the art and in particular by removing or replacing with other amino acids the cysteine residues or by blocking the groups - SH so that they no longer form a disulfide bridge.
- the amphipathic nature of the peptides of the invention was expressed by the value of the average hydrophobicity per residue ⁇ H> and the moment of helical hydrophobicity ⁇ H> ⁇ .
- the peptides of the invention have: an average hydrophobicity per residue ⁇ H> of between 0.15 and 0.7;
- the research carried out in the context of the present invention has in fact concerned three parameters making it possible to orient the design of primary sequences from reference sequences (Eisenberg et al., 1982; The helical hydrophobic moment: a measure of the amphilicity of helix. Nature 299, 371-374).
- the three parameters chosen were as follows:
- the average hydrophobicity per residue is a measure of the apolar nature of a peptide.
- the quantification of the hydrophobicity of a peptide is carried out by summing the contribution of each residue to this hydrophobicity according to the formula:
- H corresponds to the average hydrophobicity per residue
- N represents the number of residues
- H n represents the hydrophobicity index of residue n.
- the helical hydrophobicity moment ⁇ H> ⁇ makes it possible to quantify the more or less amphiphilic nature of a propeller according to the formula:
- ⁇ corresponds to the hydrophobicity index of the residue n and ⁇ corresponds to the angle between 2 successive residues (100 ° for an ⁇ helix).
- Each amino acid is assigned a vector whose direction corresponds to the line connecting the center of the wheel to its position on this wheel.
- the norm of this vector is equal to the hydrophobicity index of the amino acid.
- the direction of the vector goes from the center to the amino acid if the amino acid is hydrophobic (positive value in the hydrophobicity scale) and from the amino acid to the center if the amino acid is polar (negative value in the hydrophobicity scale).
- the moment of hydrophobicity by amino acid of the amphiphilic helix is equal to the norm of the vector resulting from the summation of all these vectors, divided by the number of amino acids of the helix.
- the resulting vector points in the direction of the most hydrophobic area of the wheel.
- the moment of hydrophobicity beta ⁇ > ⁇ corresponds to the moment of hydrophobicity of a peptide which would adopt a ⁇ -sheet structure.
- the moment of beta hydrophobicity is calculated as the parameter ⁇ H> but with in this case, ⁇ , which corresponds to the angle between 2 successive residues, is equal to 180 °.
- SynB1 - two peptides derived from protectin designated SynB1 and SynB3, a peptide derived from tachyplesin designated SynB4.
- the invention relates very particularly to a peptide comprising or consisting of a derivative of a peptide whose amino acid sequence is:
- amino acids are represented by their one-letter code, but they can also be represented by their three-letter code according to the nomenclature below.
- the mutation of at least one of the residues in position 6, 8, 13, 14, 15, 16 with a hydrophobic amino acid preferably chosen from the group comprising: Ala, Ile, Leu, Val, Phe, Trp,
- the mutations below increase the parameters ⁇ H> and ⁇ H>, that is to say the average hydrophobicity per residue and the mean helical amphipathicity per residue: the permutation of at least one pair of the residues in position 3 and 5, in position 10 and 12, and in position 16 and 17,
- a hydrophobic amino acid preferably chosen from the group comprising: Ala, Ile, Leu, Val, Phe, Trp,
- the A-Synbl peptide is a derivative of SynB1 in which the amino acid pairs in position 3 and 5, in position 10 and 12 and in position 16 and 17 have been permuted.
- hydrophobic amino acids preferably chosen from the group comprising: Ala, location, Leu, Val, Phe, Trp, optionally, the mutation of at least one other residue, preferably the Phe residue in position 10, by a Tyr or Trp residue giving a spectroscopic signal and allowing the assay of the peptide.
- Table 5 below reports mutations making it possible to increase the ⁇ H> and ⁇ H> ⁇ parameter of the SynB3 peptide and gives examples of peptides according to the invention derived from SynB3.
- hydrophobic amino acids preferably chosen from the group comprising: Ala, locus, Leu, Val, Phe and Trp.
- hydrophobic amino acids preferably chosen from the group comprising: Ala, location, Leu, Val, Phe and Trp.
- aSynB4 is a peptide obtained by a permutation of the residues in position 12 and 14 and of the residues in position 16 and 17.
- the invention also relates to a linear peptide containing or consisting of a derivative of an antibiotic peptide by:
- the substitution of arginines by citrullines or ornithines makes it possible to reduce the possible toxicity of the peptide resulting from the cationic character of arginine. It is thus possible to use a larger amount of peptide vector.
- the peptides of the invention comprise at least one more, preferably at least two more and most preferably at least three more arginines.
- one or more arginines of which are replaced by citrullines (Cit) mention may be made of the derivatives of SynB1, SynB3 and SynB4 in Table 8 below.
- the peptides of the invention can be prepared by chemical synthesis or by genetic engineering, they can be in retro form and include acids amino acids in form D.
- the invention also relates to fragments of these peptides consisting of at least five and preferably at least seven successive amino acids of the sequences above.
- the subject of the invention is also the use of these linear amphipathic peptides or analogues thereof, for vectorization across the membrane of cells in vivo or in vitro of one or more active substances both for therapeutic applications than diagnostic.
- vectorization is understood to mean, according to the invention, a process capable of crossing the cell membrane (s) and of bringing said active substance to a target located in a cell compartment such as the cytoplasm or the nucleus.
- the subject of the invention is compounds formed from at least one linear amphipathic peptide of the above described linked directly or indirectly to at least one active substance.
- These compounds can be represented by the following formula (I):
- A represents an amphipathic peptide of the invention
- the invention envisages in particular proteins, such as polypeptides or peptides, antibodies or part of antibodies, nucleic acids and oligonucleotides or ribozymes, or, of course, active chemical molecules for the treatment or the prevention of pathologies - human or animal, such as for example and without limitation anti-tumor, antiviral, etc.
- the active substance can be a radioactive marker, a colored marker, or any other means or substance capable of revealing a metabolism or a pathology.
- the coupling between the vector peptide and the active substance, symbolized by the horizontal lines in the formula (I), can be achieved by any acceptable binding means taking into account the chemical nature and the bulk in the compounds of the formula ( I).
- the bonds can be covalent, hydrophobic or ionic, cleavable or non-cleavable in physiological media or inside the cell.
- the linkage can comprise one or more intermediate compounds (linker).
- the coupling can be carried out at any site of the peptide (A), in which functional groups such as -OH, -SH, -COOH, -NH2 are naturally present or have been introduced.
- the coupling positions for the active substance can be at the N-terminal or C-terminal ends or else at the side chains of the peptide. Likewise, the coupling can be carried out at any site of the active substance (B), into which functional groups such as -OH, -SH, -COOH, -NH2 are naturally present or have been introduced.
- the invention therefore also relates to pharmaceutical compositions comprising, as active agent, an effective amount of at least one compound of formula (I) in an acceptable vehicle.
- the peptides were synthesized by the Fmoc-tBu strategy using an AMS 422 (ABIMED, Germany). The peptide sequences are shown in Table I.
- the labeling of the N-terminal with a NBD fluorescent group was carried out according to the procedure described by [Gazit, E. et al. (1995) Biochemistry 34, 11479-11488].
- the peptide on resin is first treated with piperidine [20% (v / v) in DMF] to remove the group protecting Fmoc from the N-terminal.
- NBD-Cl in dry DMF (excess of 5 times) is then added in the presence of DIEA (excess of 2 times) for 6 hr in the shade with stirring to selectively mark the N-terminal group.
- the resin is then removed with DMF and treated with a deprotective mixture to detach the peptides from the resin and deprotect the side chains.
- the peptide was then purified by HPLC (reverse phase high performance liquid chromatography) (Water-prep LC 40, Water) with a 0.01% TFA / acetonitrile gradient. The purity of the peptides was measured by UV absorbance criteria at 220 nm and 460 nm and was 95%.
- the coupling of doxorubicin to a peptide via the succinic link is carried out in 3 stages.
- doxorubicin hydrochloride (1 eq), dissolved in dimethylformamide (DMF) in the presence of Disopropylethylamine (DIEA, 2 eq), succinic anhydride (1.1 eq, dissolved in DMF) is added. After an incubation of 20 min at room temperature, the doxorubicin hemisuccinate thus formed is then activated by addition of PyBOP (Benzotriazol-1-yl-oxopyrrolidinephosphonium
- the coupling product is then purified on preparative HPLC (high pressure liquid chromatography), then lyophilized.
- Each of the stages, as well as the final product, are controlled by analytical HPLC and mass spectrometry.
- K562 cells are grown in RPMI medium with 10% fetal calf serum. The cells are diluted to 0.3 ⁇ 10 6 cells per ml 24 hours before the experiment. Cell penetration was measured by flow cytometry using a FACScan (Becton Dickinson, USA).
- the peptides labeled with NBD final concentration 1 ⁇ M are incubated with K562 cells (5 ⁇ 10 5 cells per ml) in Optimem medium at 37 ° C. for varying times (the final volume was 0.5 ml). After incubation, the cells are washed twice and then resuspended in 0.5 ml of cold PBS.
- the penetration was then analyzed by FACS.
- the fluorophores are excited at 488 nm and the fluorescence is measured at 525 nm.
- a histogram of the fluorescence intensity (for 1 ⁇ 10 4 cells) is obtained and the mean distribution was considered to be representative of the amount of peptide associated with the cells.
- Table 10 shows the penetration of the SM2363 peptide compared to that of two of these analogues which are more amphipathic.
- the doxorubicin hemisuccinate thus formed is then activated by addition of PyBOP (Benzotriazol-1-yl-oxopyrrolidinephosphonium Hexafluorophosphate, 1.1 eq in DMF) and DIEA (2 eq). This second reaction mixture is incubated for 20 min.
- PyBOP Benzotriazol-1-yl-oxopyrrolidinephosphonium Hexafluorophosphate, 1.1 eq in DMF
- DIEA 2 eq
- the peptide SynB1 / 3Cit (1.2 eq in DMF) is then added to the reaction mixture, and spontaneously couples to the activated doxorubicin hemisuccinate during an additional 20 min incubation.
- the coupling product is then purified on preparative HPLC (high pressure liquid chromatography), then lyophilized.
- Each of the stages, as well as the final product, are controlled by analytical HPLC and mass spectrometry.
- mice 25-30 g, Iffa-Credo; l'Arbresle, France
- mice 25-30 g, Iffa-Credo; l'Arbresle, France
- the common carotid artery is linked between the heart and the catheter implantation site (polyethylene catheter, ID: 0.76).
- the latter previously filled with a heparin solution (100 units / ml) is inserted into the common carotid.
- mice are perfused with the perfusion buffer (128 mM NaCl, 24 mM NaHC0 3 , 4.2 M KCl, 2.4 mM NaH 2 P0 4 , 1.5 mM CaCl 2 , 0.9 mM MgS0 4 , and 9 mM D-glucose).
- This buffer is filtered and then bubble by a mixture containing 95% 0 2 /5% C0 2 in order to maintain the pH close to 7.4 and to supply the brain with oxygen during the infusion.
- mice are perfused with the buffer containing free doxorubicin or doxo-SynBl / 3Cit.
- doxorubicin is radio-arc carbon 14 (specific activity: 9.4 ⁇ Ci / mg, Amersham, France).
- the products are infused at a concentration of 0.33 ⁇ Ci / ml or 0.035 g / mouse.
- the heart is stopped by section of the ventricles, in order to avoid reflux of the perfusate during the infusion.
- the right hemisphere is then perfused at a speed of 10 ml / min for 60 seconds after which the mouse is decapitated.
- FIG. 1 shows that the vectorization of doxorubicin by the vector SynBl / 3Cit increases its passage in the brain by 20 times after an infusion of 60 seconds in buffer.
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- Health & Medical Sciences (AREA)
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- Animal Behavior & Ethology (AREA)
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Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0008633 | 2000-07-03 | ||
FR0008633A FR2810985B1 (fr) | 2000-07-03 | 2000-07-03 | Peptides lineaires amphipathiques et les compositions les contenant |
PCT/FR2001/002129 WO2002002595A1 (fr) | 2000-07-03 | 2001-07-03 | Peptides lineaires amphipathiques et les compositions les contenant |
Publications (1)
Publication Number | Publication Date |
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EP1297001A1 true EP1297001A1 (fr) | 2003-04-02 |
Family
ID=8852054
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP01951760A Withdrawn EP1297001A1 (fr) | 2000-07-03 | 2001-07-03 | Peptides lineaires amphipathiques et les compositions les contenant |
Country Status (8)
Country | Link |
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US (1) | US20030186890A1 (fr) |
EP (1) | EP1297001A1 (fr) |
JP (1) | JP2004517039A (fr) |
AU (1) | AU2001272615A1 (fr) |
CA (1) | CA2414355A1 (fr) |
FR (1) | FR2810985B1 (fr) |
IL (1) | IL153671A0 (fr) |
WO (1) | WO2002002595A1 (fr) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
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FR2830016B1 (fr) * | 2001-09-27 | 2004-06-25 | Synt Em | Compositions pour la vectorisation de derives taxoides a travers la barriere hematoencephalique et leur utilisation pour le traitement des cancers, plus particulierement des cancers du cerveau |
FR2829940A1 (fr) * | 2001-09-27 | 2003-03-28 | Synt Em | Compositions pour la vectorisation d'anticorps a travers la barriere hematoencephalique et leur utilisation pour le diagnostic ou le traitement des maladies du systeme nerveux central |
IL161069A0 (en) * | 2001-10-16 | 2004-08-31 | Synt Em Sa | Use of peptide vectors to improve the immune response to antigens |
SE0201863D0 (en) * | 2002-06-18 | 2002-06-18 | Cepep Ab | Cell penetrating peptides |
FR2840810B1 (fr) * | 2002-06-18 | 2005-02-11 | Synt Em | Composition pour le transfert de molecules therapeutiques dans les poumons et leur utilisation pour le traitement des cancers du poumon et des maladies pulmonaires |
US20050148534A1 (en) * | 2003-09-22 | 2005-07-07 | Castellino Angelo J. | Small molecule compositions and methods for increasing drug efficiency using compositions thereof |
FR2865735B1 (fr) * | 2004-02-02 | 2006-08-11 | Synt Em | Inhibiteurs de l'angiogenese, compositions les contenant et leur utilisation pour le traitement des maladies liees a une deregulation de l'angiogenese |
FR2865736B1 (fr) * | 2004-02-02 | 2006-07-14 | Synt Em | Inhibiteurs de l'angiogenese, compositions les contenant et leur utilisation pour le traitement des maladies liees a une deregulation de l'angiogenese |
US20080213271A1 (en) * | 2005-05-05 | 2008-09-04 | Center For Addiction And Mental Health | Compositions and Methods For Modulating Dopamine Nerutransmission |
US8410045B2 (en) | 2006-03-30 | 2013-04-02 | Drais Pharmaceuticals, Inc. | Camptothecin-peptide conjugates and pharmaceutical compositions containing the same |
GB0715809D0 (en) * | 2007-08-14 | 2007-09-26 | Univ Leuven Kath | Alpha synuclein toxicity |
ES2613866T3 (es) | 2008-06-12 | 2017-05-26 | Centre For Addiction And Mental Health | Composiciones y métodos para modular la interacción y la función del receptor de dopamina D1-D2 |
US20110097324A1 (en) * | 2008-06-13 | 2011-04-28 | Centre For Addiction And Mental Health | Compositions and methods for modulating nicotinic/nmda receptor function |
FR2941230B1 (fr) * | 2009-01-19 | 2011-03-18 | Centre Nat Rech Scient | Polypeptides d'adressage specifique a des cellules-cibles d'otx2 |
WO2011050152A2 (fr) * | 2009-10-21 | 2011-04-28 | The Johns Hopkins University | Modification de protéines spécifiques à un site |
WO2022094614A1 (fr) * | 2020-10-29 | 2022-05-05 | The Regents Of The University Of California | Récepteur antigénique chimérique anti-dpp6 portant des lymphocytes t régulateurs |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US5804558A (en) * | 1993-07-20 | 1998-09-08 | University Of California | Protegrins |
US5580852A (en) * | 1993-12-17 | 1996-12-03 | Pioneer Hi-Bred International, Inc. | Derivatives of tachyplesin having inhibitory activity towards plant pathogenic fungi |
FR2767323B1 (fr) * | 1997-08-12 | 2001-01-05 | Synt Em | Peptides lineaires derives de peptides antibiotiques, leur preparation et leur utilisation pour vectoriser des substances actives |
US6015941A (en) * | 1997-10-31 | 2000-01-18 | Pioneer Hi-Bred International, Inc. | Peptide derivatives of tachyplesin having antimicrobial activity |
-
2000
- 2000-07-03 FR FR0008633A patent/FR2810985B1/fr not_active Expired - Fee Related
-
2001
- 2001-07-03 WO PCT/FR2001/002129 patent/WO2002002595A1/fr not_active Application Discontinuation
- 2001-07-03 CA CA002414355A patent/CA2414355A1/fr not_active Abandoned
- 2001-07-03 JP JP2002507847A patent/JP2004517039A/ja active Pending
- 2001-07-03 AU AU2001272615A patent/AU2001272615A1/en not_active Abandoned
- 2001-07-03 IL IL15367101A patent/IL153671A0/xx unknown
- 2001-07-03 EP EP01951760A patent/EP1297001A1/fr not_active Withdrawn
-
2003
- 2003-01-03 US US10/336,312 patent/US20030186890A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
EISENSTEIN D. ET AL: "The helical hydrophobic moment: a measure of the amphiphilicity of a helix", NATURE, vol. 299, 23 September 1982 (1982-09-23), pages 371 - 374, XP008045352 * |
Also Published As
Publication number | Publication date |
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FR2810985A1 (fr) | 2002-01-04 |
IL153671A0 (en) | 2003-07-06 |
WO2002002595A9 (fr) | 2002-03-28 |
US20030186890A1 (en) | 2003-10-02 |
WO2002002595A1 (fr) | 2002-01-10 |
FR2810985B1 (fr) | 2004-12-24 |
AU2001272615A1 (en) | 2002-01-14 |
CA2414355A1 (fr) | 2002-01-10 |
JP2004517039A (ja) | 2004-06-10 |
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