WO1998059069A2 - Identification d'agents cancerogenes grace a un mammifere avec inhibition de la poly(adp-ribose)-polymerase - Google Patents
Identification d'agents cancerogenes grace a un mammifere avec inhibition de la poly(adp-ribose)-polymerase Download PDFInfo
- Publication number
- WO1998059069A2 WO1998059069A2 PCT/DE1998/001797 DE9801797W WO9859069A2 WO 1998059069 A2 WO1998059069 A2 WO 1998059069A2 DE 9801797 W DE9801797 W DE 9801797W WO 9859069 A2 WO9859069 A2 WO 9859069A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- polymerase
- adp
- ribose
- poly
- mammal
- Prior art date
Links
- 102000012338 Poly(ADP-ribose) Polymerases Human genes 0.000 title claims abstract description 29
- 108010061844 Poly(ADP-ribose) Polymerases Proteins 0.000 title claims abstract description 29
- 229920000776 Poly(Adenosine diphosphate-ribose) polymerase Polymers 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 24
- 241000124008 Mammalia Species 0.000 title claims abstract description 13
- 230000005764 inhibitory process Effects 0.000 title claims description 10
- 230000000711 cancerogenic effect Effects 0.000 title abstract description 13
- 239000003183 carcinogenic agent Substances 0.000 claims abstract description 12
- 230000002401 inhibitory effect Effects 0.000 claims abstract 2
- 230000009261 transgenic effect Effects 0.000 claims description 6
- 238000011830 transgenic mouse model Methods 0.000 claims description 5
- 208000027816 DNA repair disease Diseases 0.000 claims description 3
- 230000000699 topical effect Effects 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 abstract description 10
- 230000033616 DNA repair Effects 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 4
- 241001465754 Metazoa Species 0.000 description 18
- 239000000126 substance Substances 0.000 description 18
- 238000012360 testing method Methods 0.000 description 16
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 14
- 206010028980 Neoplasm Diseases 0.000 description 12
- 238000011282 treatment Methods 0.000 description 11
- 239000012634 fragment Substances 0.000 description 10
- 206010007269 Carcinogenicity Diseases 0.000 description 8
- 231100000260 carcinogenicity Toxicity 0.000 description 8
- 230000007670 carcinogenicity Effects 0.000 description 8
- 241000699666 Mus <mouse, genus> Species 0.000 description 7
- 108700019146 Transgenes Proteins 0.000 description 7
- 231100000315 carcinogenic Toxicity 0.000 description 7
- 230000001738 genotoxic effect Effects 0.000 description 6
- 230000035772 mutation Effects 0.000 description 6
- 231100000024 genotoxic Toxicity 0.000 description 5
- 239000013641 positive control Substances 0.000 description 5
- ARSRBNBHOADGJU-UHFFFAOYSA-N 7,12-dimethyltetraphene Chemical compound C1=CC2=CC=CC=C2C2=C1C(C)=C(C=CC=C1)C1=C2C ARSRBNBHOADGJU-UHFFFAOYSA-N 0.000 description 4
- 108020004414 DNA Proteins 0.000 description 4
- 230000004568 DNA-binding Effects 0.000 description 4
- 231100000357 carcinogen Toxicity 0.000 description 4
- 210000004027 cell Anatomy 0.000 description 4
- 230000002068 genetic effect Effects 0.000 description 4
- PHEDXBVPIONUQT-RGYGYFBISA-N phorbol 13-acetate 12-myristate Chemical compound C([C@]1(O)C(=O)C(C)=C[C@H]1[C@@]1(O)[C@H](C)[C@H]2OC(=O)CCCCCCCCCCCCC)C(CO)=C[C@H]1[C@H]1[C@]2(OC(C)=O)C1(C)C PHEDXBVPIONUQT-RGYGYFBISA-N 0.000 description 4
- 230000005748 tumor development Effects 0.000 description 4
- 230000004614 tumor growth Effects 0.000 description 4
- 208000005623 Carcinogenesis Diseases 0.000 description 3
- 230000004544 DNA amplification Effects 0.000 description 3
- ZRKWMRDKSOPRRS-UHFFFAOYSA-N N-Methyl-N-nitrosourea Chemical compound O=NN(C)C(N)=O ZRKWMRDKSOPRRS-UHFFFAOYSA-N 0.000 description 3
- 241000283984 Rodentia Species 0.000 description 3
- 230000001580 bacterial effect Effects 0.000 description 3
- 201000011510 cancer Diseases 0.000 description 3
- 230000036952 cancer formation Effects 0.000 description 3
- 231100000504 carcinogenesis Toxicity 0.000 description 3
- 238000001727 in vivo Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000013642 negative control Substances 0.000 description 3
- 210000000056 organ Anatomy 0.000 description 3
- 238000003752 polymerase chain reaction Methods 0.000 description 3
- 108090000623 proteins and genes Proteins 0.000 description 3
- 230000006798 recombination Effects 0.000 description 3
- 238000005215 recombination Methods 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 230000005740 tumor formation Effects 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 108091026890 Coding region Proteins 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 2
- 108090000790 Enzymes Proteins 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 102100040445 Keratin, type I cytoskeletal 14 Human genes 0.000 description 2
- 102000011782 Keratins Human genes 0.000 description 2
- 108010076876 Keratins Proteins 0.000 description 2
- 241000699670 Mus sp. Species 0.000 description 2
- 206010029098 Neoplasm skin Diseases 0.000 description 2
- 208000000453 Skin Neoplasms Diseases 0.000 description 2
- 238000003556 assay Methods 0.000 description 2
- 238000001574 biopsy Methods 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000000338 in vitro Methods 0.000 description 2
- 238000005462 in vivo assay Methods 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 230000003505 mutagenic effect Effects 0.000 description 2
- 231100000299 mutagenicity Toxicity 0.000 description 2
- 230000007886 mutagenicity Effects 0.000 description 2
- 239000002504 physiological saline solution Substances 0.000 description 2
- 230000008488 polyadenylation Effects 0.000 description 2
- 210000001519 tissue Anatomy 0.000 description 2
- 239000000717 tumor promoter Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000001262 western blot Methods 0.000 description 2
- QKNYBSVHEMOAJP-UHFFFAOYSA-N 2-amino-2-(hydroxymethyl)propane-1,3-diol;hydron;chloride Chemical compound Cl.OCC(N)(CO)CO QKNYBSVHEMOAJP-UHFFFAOYSA-N 0.000 description 1
- 101150033839 4 gene Proteins 0.000 description 1
- 108091060290 Chromatid Proteins 0.000 description 1
- 230000005778 DNA damage Effects 0.000 description 1
- 231100000277 DNA damage Toxicity 0.000 description 1
- 231100001074 DNA strand break Toxicity 0.000 description 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- 206010064571 Gene mutation Diseases 0.000 description 1
- 101000614436 Homo sapiens Keratin, type I cytoskeletal 14 Proteins 0.000 description 1
- 101710183391 Keratin, type I cytoskeletal 14 Proteins 0.000 description 1
- 102100022905 Keratin, type II cytoskeletal 1 Human genes 0.000 description 1
- 101710194922 Keratin, type II cytoskeletal 1 Proteins 0.000 description 1
- 108010066321 Keratin-14 Proteins 0.000 description 1
- 206010028400 Mutagenic effect Diseases 0.000 description 1
- 238000011785 NMRI mouse Methods 0.000 description 1
- 108700020796 Oncogene Proteins 0.000 description 1
- 241000283973 Oryctolagus cuniculus Species 0.000 description 1
- 102100023652 Poly [ADP-ribose] polymerase 2 Human genes 0.000 description 1
- 108700008625 Reporter Genes Proteins 0.000 description 1
- 241000293869 Salmonella enterica subsp. enterica serovar Typhimurium Species 0.000 description 1
- 206010042573 Superovulation Diseases 0.000 description 1
- 108700025716 Tumor Suppressor Genes Proteins 0.000 description 1
- 102000044209 Tumor Suppressor Genes Human genes 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000011543 agarose gel Substances 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 108010005774 beta-Galactosidase Proteins 0.000 description 1
- 230000027455 binding Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004113 cell culture Methods 0.000 description 1
- 230000032823 cell division Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000003927 comet assay Methods 0.000 description 1
- 231100000170 comet assay Toxicity 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 235000005911 diet Nutrition 0.000 description 1
- 230000037213 diet Effects 0.000 description 1
- 231100000673 dose–response relationship Toxicity 0.000 description 1
- 210000002257 embryonic structure Anatomy 0.000 description 1
- 230000009088 enzymatic function Effects 0.000 description 1
- 210000003527 eukaryotic cell Anatomy 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 231100000025 genetic toxicology Toxicity 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000005556 hormone Substances 0.000 description 1
- 229940088597 hormone Drugs 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000010874 in vitro model Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 210000001161 mammalian embryo Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000000520 microinjection Methods 0.000 description 1
- 230000002297 mitogenic effect Effects 0.000 description 1
- 239000003471 mutagenic agent Substances 0.000 description 1
- 231100000707 mutagenic chemical Toxicity 0.000 description 1
- 231100000243 mutagenic effect Toxicity 0.000 description 1
- 231100001223 noncarcinogenic Toxicity 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 210000000287 oocyte Anatomy 0.000 description 1
- 210000003101 oviduct Anatomy 0.000 description 1
- 208000003154 papilloma Diseases 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 239000013612 plasmid Substances 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 230000021625 positive regulation of cell division Effects 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 108091008146 restriction endonucleases Proteins 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 210000002966 serum Anatomy 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000012250 transgenic expression Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 230000003442 weekly effect Effects 0.000 description 1
Classifications
-
- 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
- C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
- C12N15/09—Recombinant DNA-technology
- C12N15/63—Introduction of foreign genetic material using vectors; Vectors; Use of hosts therefor; Regulation of expression
- C12N15/79—Vectors or expression systems specially adapted for eukaryotic hosts
- C12N15/85—Vectors or expression systems specially adapted for eukaryotic hosts for animal cells
- C12N15/8509—Vectors or expression systems specially adapted for eukaryotic hosts for animal cells for producing genetically modified animals, e.g. transgenic
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K67/00—Rearing or breeding animals, not otherwise provided for; New or modified breeds of animals
- A01K67/027—New or modified breeds of vertebrates
- A01K67/0275—Genetically modified vertebrates, e.g. transgenic
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K67/00—Rearing or breeding animals, not otherwise provided for; New or modified breeds of animals
- A01K67/027—New or modified breeds of vertebrates
- A01K67/0275—Genetically modified vertebrates, e.g. transgenic
- A01K67/0278—Knock-in vertebrates, e.g. humanised vertebrates
-
- 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
- C12N9/00—Enzymes; Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating or purifying enzymes
- C12N9/10—Transferases (2.)
- C12N9/1048—Glycosyltransferases (2.4)
- C12N9/1077—Pentosyltransferases (2.4.2)
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K2207/00—Modified animals
- A01K2207/15—Humanized animals
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K2217/00—Genetically modified animals
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K2217/00—Genetically modified animals
- A01K2217/05—Animals comprising random inserted nucleic acids (transgenic)
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K2227/00—Animals characterised by species
- A01K2227/10—Mammal
- A01K2227/105—Murine
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K2267/00—Animals characterised by purpose
- A01K2267/03—Animal model, e.g. for test or diseases
Definitions
- the present invention relates to a method for identifying carcinogenic agents.
- the very widespread Arnes test also called the Salmonella typhimurium test, is based on the mutagenicity of substances in bacteria (Clonfero et al., Med. Lav. 81, pp. 3-10 (1 990)).
- Another well-known in vitro test is the SOS chromotest (Quillardet et al., Mutat. Res. 297, pp. 235-279 (1 993)), which is based on the induction of the bacterial SOS system by genotoxic agents.
- the sensitivity of both tests is comparable, but they have the fundamental disadvantage that the genotoxic effects of substances in bacteria and higher organisms can be different and the results are therefore not transferable to the mammalian organism.
- the object of the present invention is therefore to provide a method with which carcinogenic agents can be reliably identified.
- the method according to the invention is carried out using a mammal, preferably a rodent, particularly preferably using a mouse, in which there is a fault in the DNA repair.
- the DNA repair disorder is based on the trans-dominant inhibition of poly (ADP-ribose) polymerase (PARP), an enzyme involved in DNA repair processes.
- PARP poly (ADP-ribose) polymerase
- the inhibition of PARP is preferably based on the expression of a dominant negative mutant of poly (ADP-ribose) polymerase, preferably the transgenic expression of such a mutant in a mammal, thereby producing a transgenic animal which is also the subject of the present invention.
- the PARP has a DNA binding domain (abbreviated DBD), which enables binding to DNA strand breaks and leads to an enzyme activity of the PARP, which enables repair of the strand breaks.
- DBD DNA binding domain
- the dominant negative PARP mutant has a deletion, so that only the DNA binding domain of the PARP is expressed. This inhibits PARP enzyme function and thus DNA repair.
- the expression of this PARP mutant has no influence on cell division and cell vitality in the absence of genotoxic stress. However, if genotoxic (chemical or physical) agents are applied, PARP inhibition leads to a considerable increase in the sensitivity of the cells to these treatments. The presence of the PARP mutant then leads to an increased genetic instability after carcinogen treatment, which manifests itself in increased recombination and increased gene amplification.
- the disruption of the PARP function leads to an increased mutagenicity of genotoxic agents.
- the disruption of cellular PARP function leads to an increased rate of various genetic changes (mutations, recombinations, gene amplification) after treatment with a carcinogen. These different genetic changes, depending on the nature of the carcinogenic agent and the type of its application, allow different ways of tumor development (eg oncogene amplification, tumor suppressor gene mutation or combinations thereof).
- the mammal used in the method according to the invention advantageously has a skin-specific expression of the dominant-negative PARP mutant, although of course any other organ-specific expression is also possible.
- the skin is the preferred organ for carcinogenesis studies because of its easy accessibility and controllability.
- Any promoter known to the person skilled in the art that allows tissue-specific expression, preferably in the skin, can be used to control the transgene; the cytokeratin 14 promoter is preferably used, which allows expression in the cell-dividing basal layer, from which skin tumors preferably arise (Vassar et al., Proc. Natl. Acad. Sei USA 86, pp. 1,563-1,567 (1,989 )).
- a fragment is preferably used to produce the transgenic mammal, which has the following structure (see FIG. 1):
- the transgenic mammal is made according to the method described by Hogan et al. ("Manipulating the mouse embryo: A laboratory manual", Cold Spring Habor Laboratory, New York (1986)). The microinjection of a corresponding DNA fragment into fertilized mouse oocytes and subsequent implantation into hypophysical females is particularly suitable for this. It offspring arise which contain the transgene and are passed on to their offspring (DBD line).
- the method according to the invention is carried out in the form of an in vivo assay. 10-1 5-week-old transgenic animals from the DBD line are selected and acclimatized accordingly for the test. 1 0- 1 5 animals (female or male) are required for each treatment. Since the skin is an important target organ of the carcinogenesis studies, the potentially carcinogenic chemical agents are applied topically twice a week in 50-200 ⁇ ⁇ solvents, e.g. water, physiological saline, acetone or ethanol). For the investigation of potentially carcinogenic physical agents, corresponding applications are also carried out twice a week. These treatments can last up to 20 weeks. To enable tumor growth, an additional time of up to 40-80 weeks after the last application is estimated.
- solvents e.g. water, physiological saline, acetone or ethanol
- DMBA 2-dimethylbenzanthracene
- the corresponding solvent which was also used to dissolve the test substance, can be applied as a negative control.
- the animals are weighed regularly throughout the test period and the application site is examined. Papillomas and other skin tumors are examined macroscopically once a week and measured if necessary. When tumors have reached a critical size (depends on the species, location of the tumor and the national animal welfare conditions), the animals are killed and tumor tissue is removed for histological and molecular biological characterization. Primary cultures of the tumors can also be created.
- a sensitivity gain can be achieved with the method according to the invention using the transgenic mammal which has a disturbance in DNA repair by trans-dominant inhibition of PARP activity, whereby the problem of overdosing and producing false positive results is reduced.
- the method of the present invention circumvents the problem of the pathway towards a predetermined tumorigenesis.
- the PARP inhibition leads to a fundamental disruption of the DNA repair with the consequence of an increase in the genetic instability (mutation, recombination, gene amplification rate) after carcinogen treatment, which then promotes tumor development in various ways.
- Gene DBD coding sequence of the DNA binding domain of human poly (ADP-ribose) polymerase (EC 2.4.2.30)
- p-A polyadenylation signal of human
- the plasmid pKDinoDBD (see FIG. 1) was cut with the restriction enzyme Not I. After separation of the restriction fragments on a 1% agarose gel, a 3.6 kB fragment containing the expression cassette of pKDinoDBD was isolated and by means of a commercially available kit (for example "Gene Clean” R; Dianova, Hamburg) according to the manufacturer's instructions prepared. This fragment was adjusted to a concentration of 2 ng / ⁇ l in 10 mM Tris-HCl (pH 7.6), 0.25 mM EDTA. F1 females from the cross between the mouse strains C57BL / 6 x DBA2 were subjected to superovulation by hormone administration.
- PCR cycles were carried out, each with 200 ng of genomic DNA, denaturing in each case 300 seconds at 95 ° C., annealing for 60 seconds at 60 ° C. and polymerizing at 72 ° C. for 20 seconds.
- a positive female (ear tag # 354) was identified. Protein material was obtained from the tail biopsy of this animal and examined for expression of the transgene by means of Western blot. Both the monoclonal anti-DBD antibody CM 10 (Lamarre et al., Biochim. Biophys. Acta 950, S. 147-160 (1 988)) and the anti-FII rabbit serum directed against the DBD (Küpper et al., J. Biol. Chem. 265, p. 1 8721 -1 8724 (1 990)). With both antibodies, the 45 kDa DNA binding domain (DBD) was detectable in the Western blot, so that the evidence for the expression of the transgene was provided. The Founder-DBD-Mouse # 354 was mated with DBA2 males and the offspring were analyzed. The transgene is passed on to the offspring so that the line DBD # 354 is stable.
- CM 10 Lamarre et al., Biochim. Biophys. Act
- mice DBD line # 354 described in Example 1 1 2 week old animals of the mouse DBD line # 354 described in Example 1 are acclimated to the test site over three weeks.
- Female animals are kept in groups of 5 animals / cage, male animals are kept individually under specific pathogen-free (SPF) conditions. The animals are fed according to standard (# D10010 feed from Research Diets, New Brunswick, New Jersey, USA and water ad libitum). 10-1 5 animals (male or female) are required for each treatment.
- the putative carcinogenic chemicals to be tested are taken up in several dilution stages in physiological saline or acetone and 100 ⁇ l of each dilution is applied topically twice a week.
- DMBA 2-dimethylbenzanthracene
- Acetone is applied as a negative control.
- the treatment is carried out for 1 5 weeks.
- the animals are weighed weekly and examined at the application site. Visible tumor growth can be expected in the group of the positive control 1 2 weeks after the end of the treatments. Experience has shown that the tumors grow rapidly (within a further 1 2 weeks). After reaching a critical tumor size, the animals are killed by cervical dislocation and the tumor is removed. As expected, there was no tumor growth in the group of animals treated with solvent even after 60 weeks. Alternatively, a so-called initiation doctoral protocol can be used.
- a very low dose of an initiating (mostly DNA-damaging) carcinogen is administered, followed by repeated applications of a non-carcinogenic tumor promoter (Becker et al., Cancer Res. 56, pp. 3244-3249, 1 996).
- a non-carcinogenic tumor promoter Becker et al., Cancer Res. 56, pp. 3244-3249, 1 996
- methyl nitrosourea (20 ⁇ mol in 100 ⁇ l acetone; applied topically once
- TPA tumor promoter tetradecanoyl-phorbol acetate
- negative controls are animals that have only been given acetone instead of the methyl nitrosourea, but then followed by the usual TPA treatment.
- the chemicals to be tested for carcinogenicity are also applied instead of the methyl nitrosourea, again followed by the usual TPA treatment.
- visible tumor growth in the mouse of the DBD line # 354 described in Example 1 is to be expected after 9 weeks at the latest.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Zoology (AREA)
- Genetics & Genomics (AREA)
- Biotechnology (AREA)
- Chemical & Material Sciences (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Organic Chemistry (AREA)
- Environmental Sciences (AREA)
- Wood Science & Technology (AREA)
- General Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- General Engineering & Computer Science (AREA)
- Veterinary Medicine (AREA)
- Molecular Biology (AREA)
- Animal Husbandry (AREA)
- Microbiology (AREA)
- Biochemistry (AREA)
- Animal Behavior & Ethology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Biophysics (AREA)
- Plant Pathology (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
- Investigating Or Analysing Biological Materials (AREA)
Abstract
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50359699A JP2002507885A (ja) | 1997-06-24 | 1998-06-24 | ポリ(adpリボース)ポリメラーゼの阻害での哺乳類を使用する発癌性因子の同定方法 |
EP98941257A EP1015573A2 (fr) | 1997-06-24 | 1998-06-24 | Procede pour identifier des agents cancerogenes |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19726824.2 | 1997-06-24 | ||
DE1997126824 DE19726824C1 (de) | 1997-06-24 | 1997-06-24 | Verfahren zur Identifizierung kanzerogener Agenzien |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1998059069A2 true WO1998059069A2 (fr) | 1998-12-30 |
WO1998059069A3 WO1998059069A3 (fr) | 1999-04-29 |
Family
ID=7833520
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1998/001797 WO1998059069A2 (fr) | 1997-06-24 | 1998-06-24 | Identification d'agents cancerogenes grace a un mammifere avec inhibition de la poly(adp-ribose)-polymerase |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1015573A2 (fr) |
JP (1) | JP2002507885A (fr) |
DE (1) | DE19726824C1 (fr) |
WO (1) | WO1998059069A2 (fr) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1995024379A1 (fr) * | 1994-03-09 | 1995-09-14 | Newcastle University Ventures Limited | Analogues de benzamides utiles en tant qu'inhibiteurs de l'enzyme parp (adp-ribosyltransferase, adprt) de reparation de l'adn |
DE4433130A1 (de) * | 1994-09-16 | 1996-03-21 | Deutsches Krebsforsch | Identifizierung von DNA-schädigenden Substanzen durch Poly(ADP-Ribose)-Polymerase überexprimierende Zellinien |
WO1996018737A2 (fr) * | 1994-12-16 | 1996-06-20 | Deutsches Krebsforschungszentrum Stiftung des öffentlichen Rechts | Vecteurs et virus utilises pour la therapie genique |
EP0757102A1 (fr) * | 1995-08-04 | 1997-02-05 | Plant Genetic Systems N.V. | Transformation génétique utilisant un inhibiteur de PARP |
-
1997
- 1997-06-24 DE DE1997126824 patent/DE19726824C1/de not_active Expired - Fee Related
-
1998
- 1998-06-24 JP JP50359699A patent/JP2002507885A/ja active Pending
- 1998-06-24 WO PCT/DE1998/001797 patent/WO1998059069A2/fr not_active Application Discontinuation
- 1998-06-24 EP EP98941257A patent/EP1015573A2/fr not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1995024379A1 (fr) * | 1994-03-09 | 1995-09-14 | Newcastle University Ventures Limited | Analogues de benzamides utiles en tant qu'inhibiteurs de l'enzyme parp (adp-ribosyltransferase, adprt) de reparation de l'adn |
DE4433130A1 (de) * | 1994-09-16 | 1996-03-21 | Deutsches Krebsforsch | Identifizierung von DNA-schädigenden Substanzen durch Poly(ADP-Ribose)-Polymerase überexprimierende Zellinien |
WO1996018737A2 (fr) * | 1994-12-16 | 1996-06-20 | Deutsches Krebsforschungszentrum Stiftung des öffentlichen Rechts | Vecteurs et virus utilises pour la therapie genique |
EP0757102A1 (fr) * | 1995-08-04 | 1997-02-05 | Plant Genetic Systems N.V. | Transformation génétique utilisant un inhibiteur de PARP |
Non-Patent Citations (3)
Title |
---|
K]PPER, J.H. ET AL.: "Trans-dominant inhibition of poly(ADP-ribosyl)ation potentiates carcinogen-induced gene amplification in SV40-transformed Chinese Hamter cells " CANCER RESEARCH, Bd. 56, Nr. 12, 15. Juni 1996, Seiten 2715-2717, XP002090238 MD US * |
K]PPER, J.H. ET AL.: "Trans-dominant inhibition of poly(ADP-Ribosyl)ation sensitizes cells against gamma-irradiation and N-methyl-N'-Nitro-N-nitroguanidine but does not limit DNA replication of a polyomavirus replicon" MOLECULAR AND CELLULAR BIOLOGY, Bd. 15, Nr. 6, Seiten 3154-3163, XP002090237 WASHINGTON US * |
MOLINETE, M. ET AL.: "Overproduction of the poly(ADP-ribose) polymerase DNA-binding domain blocks alkylation-induced DNA repair synthesis in mammalian cells" EMBO JOURNAL, Bd. 12, Nr. 5, 1993, Seiten 2109-2117, XP002090239 EYNSHAM, OXFORD GB * |
Also Published As
Publication number | Publication date |
---|---|
JP2002507885A (ja) | 2002-03-12 |
EP1015573A2 (fr) | 2000-07-05 |
DE19726824C1 (de) | 1999-03-04 |
WO1998059069A3 (fr) | 1999-04-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69233477T2 (de) | Transgene nicht-menschliche tiere ohne prionprotein | |
DE3854823T2 (de) | Mutagenesetest durch Verwendung von nicht menschlichen Lebewesen, die Test-DNS-Sequenzen enthalten | |
Hasegawa et al. | Distinct and Cooperative Functions for the Protocadherin-α,-β and-γ Clusters in Neuronal Survival and Axon Targeting | |
DE60301953T2 (de) | Durch inzucht erzeugte von embryonalen stammzellen abgeleitete mäuse | |
Greer et al. | Hoxb8 is required for normal grooming behavior in mice | |
DE69333082T2 (de) | Erzielen von homozygotem durch zielgerichtete genetische ereignisse | |
Hegab et al. | Defensive responses of Brandt's voles (Lasiopodomys brandtii) to stored cat feces | |
DE19516776A1 (de) | Chromatin-Regulatorgene | |
EP0928332A1 (fr) | Procede d'obtention de mammiferes presentant des proprietes genetiques definies | |
King et al. | Chromosomal analyses of the genetic factors for resistance to DDT in two resistant lines of Drosophila melanogaster | |
Daev et al. | DNA damage in bone marrow cells of mouse males in vivo after exposure to the pheromone: Comet assay | |
Franco et al. | Genetical experiments on the gene for low aliesterase activity and organophosphate resistance in Musca domestica L | |
DE69721005T2 (de) | Gebrauch von galanin um nervenschäden zu reparieren | |
JP2018512842A (ja) | 上位及び下位運動ニューロン機能並びに知覚の減衰を示す非ヒト動物 | |
DE69205277T2 (de) | Verfahren für die Bestimmung von Mutationen in der DNA eines genetisch manipuliertien Säugetiers oder einer genetisch manipulierten Säugetierzelle. | |
DE19726824C1 (de) | Verfahren zur Identifizierung kanzerogener Agenzien | |
Pellegrino | The effects of amygdaloid stimulation on passive avoidance | |
DE60131429T2 (de) | Verfahren zur züchtung von nicht-menschliche säugertieren | |
DE60313499T2 (de) | Mutante nichtmenschliche säuger mit sigmarezeptormangel und anwendungen dafür | |
Chaubey et al. | The effect of hycanthone and maleic hydrazide on the frequency of micronuclei in the bone-marrow erythrocytes of mice | |
DE69534022T2 (de) | Genomische DNS Fragmente der regulierenden Sequenz der Beta 2 Untereinheit des neuronalen Nikotin-Acetycholin Rezeptors; damit transformierte transgene Tiere. | |
Jones et al. | Effects of clean and soiled sawdust substrates and of different urine types upon aggressive behavior in male mice | |
WO1997049802A1 (fr) | Mammifere transgenique non humain qui contient un gene reparateur d'adn additionnel | |
DE69930932T2 (de) | Im irak-gen modifizierte transgene mäuse | |
DE19754774C2 (de) | Transgenes nicht-menschliches Säugetier mit einer onkogenen Mutante des Raf-1-Gens |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A2 Designated state(s): JP US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A2 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
AK | Designated states |
Kind code of ref document: A3 Designated state(s): JP US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A3 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1998941257 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 1998941257 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 09446808 Country of ref document: US |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 1998941257 Country of ref document: EP |