In vitro assay for identification of carcinogens

Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving virus or bacteriophage

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

435 6, 435 723, 435 29, 4352523, 436 63, 436 64, C12Q 170, C12Q 168, G01N 33574, C12N 120

Patent

active

058210490

ABSTRACT:
Disclosed is a method to evaluate the carcinogenicity of a compound using a transformation assay. The method includes contacting a compound to be tested for carcinogenicity with a test cell. The test cell either includes a recombinant isolated nucleic acid molecule which encodes a cellular transforming protein or a modified genome which encodes a cellular transforming protein. Cell growth is scored to identify the presence or absence of a transformation characteristic, such as formation of foci, loss of growth factor or serum requirements or anchorage independence. The development of such a transformation characteristic indicates that the compound being tested is carcinogenic. Cellular transforming proteins of the present invention can include growth factors, growth factor receptors, intracellular transducers and nuclear transcription factors. Further embodiments include a method to evaluate the anticarcinogenicity of a compound, which includes contacting a compound to be tested for anticarcinogenicity with a test cell under conditions which, in the absence of the compound, the test cell is transformed.

REFERENCES:
patent: 5273880 (1993-12-01), Schiestl
patent: 5330896 (1994-07-01), Billing
patent: 5336613 (1994-08-01), Niwa et al.
patent: 5347075 (1994-09-01), Sorge
patent: 5356806 (1994-10-01), Harris et al.
patent: 5376542 (1994-12-01), Schlegal
patent: 5382510 (1995-01-01), Levine et al.
patent: 5387508 (1995-02-01), Jaffe
patent: 5413915 (1995-05-01), Case et al.
Casto et al, "Enhancement of viral transformation for evaluation of the carcinogenic or mutagenic potential of inorganic metal salts" Cancer Research, vol. 39, pp. 193-198, Jan. 1979.
Isfort et al, "Application of in vitro cell transformation assays to predict the carcinogenic potential of chemicals" Mutation Research, vol. 365, pp. 161-173, 1996.
Amtmann et al., 182, Nature, 296:675-677.
Kowalski et al., 1992, Cancer Lett., 64:83-90.
Stich et al., 1989, Cancer Lett., 45:71-77.
Tsang et al., 1988, Cancer Lett., 43:93-98.
Tsang et al., 1991, Cancer Det. Prev., 15(5):423-427.
Traul et al., 1979, Int. J. Cancer, 23:193-196.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

In vitro assay for identification of carcinogens does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with In vitro assay for identification of carcinogens, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and In vitro assay for identification of carcinogens will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-312132

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.