Approaches to identify less harmful tobacco and tobacco...

Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving nucleic acid

Reexamination Certificate

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C435S007210, C435S007230

Reexamination Certificate

active

07662565

ABSTRACT:
Aspects of the invention concern methods for detecting, identifying and evaluating tobacco and tobacco products to determine the potential that these compositions have to contribute to a tobacco-related disease. It is based, at least in part; on the discovery that exposure of pulmonary cells to smoke or smoke condensate obtained from tobacco or tobacco products induces double stranded breaks in cellular DNA, which were efficiently detected using assays that measure the presence, absence, or amount of phosphorylation of the histone, H2AX.

REFERENCES:
patent: 3586005 (1971-06-01), Lippman et al.
patent: 3812865 (1974-05-01), Anderson
patent: 6362317 (2002-03-01), Bonner et al.
patent: 6470894 (2002-10-01), Hersh et al.
patent: 2002/0132989 (2002-09-01), Bonner et al.
patent: 2003/0108952 (2003-06-01), Darzynkiewicz et al.
patent: WO 01/04158 (2001-01-01), None
patent: WO 03/100417 (2003-12-01), None
Wang et al, Journal of Environmental Pathology, Toxicology and Oncology 19 (1 & 2), 13 (2000).
International Search Report issued on the corresponding International Application No. PCT/US2005/016941, dated Nov. 1, 2005.
Mai, H. et al., “A functional role for nicotine in BcI2 phosphorylation and suppression of apoptosis,”Journal of Biological Chemistry, Jan. 17, 2003, Vo. 278, No. 3, pp. 1886-1891.
Wang, Q. et al., “DNA damage and activation of c-ras in human embryo lung cells exposed to chrysotile and cigarette smoking solution,”Chemical Abstracts, 2002, vol. 133.
Hibi et al., Gene expression in tobacco low-niccotine mutants, The Plant Cell, 1994, 6:723-735.
Office Action for U.S. Appl. No. 11/285,537 dated Feb. 14, 2008.
Banath, Judit P. et al., “Expression of Phosphorylated Histone H2AX as a Surrogate of Cell Killing by Drugs That Create DNA Double-Strand Breaks” Cancer Research, Aug. 1, 2003, pp. 4347-4350, vol. 63.
Brown, Buddy et al., “Comparative studies of DNA adduct formation in mice following dermal application of smoke condensates from cigarettes that burn or primarily heat tobacco” Mutation Research, 1998, pp. 21-30, vol. 414.
Demidenko, Zoya N. et al., “From Cytometry to Cell Cycle—A Protrait of Zbigniew Darzynkiewicz” Cell Cycle, 2003, pp. e94-e97, vol. 3, Issue 5.
Huang, Xuan et al., “DNA Damage Induced by DNA Topoisomerase I- and Topoisomerase II-Inhibitors Detected by Histone H2AXphosphorylation in Relation to the Cell Cycle Phase and Apoptosis” Cell Cycle, 2003, pp. 614-619, vol. 2, Issue 6.
Huang, Xuan et al., “Assessment of Histone H2AX Phosphorylation Induced by DNA Topoisomerase I and II Inhibitors Topotecan and Mitoxantrone and by the DNA Cross-Linking Agent Cisplatin” Cytometry Part A, 2004, pp. 99-110, vol. 58A.
Ingebrethsen, Bradley J. “Aerosol Studies of Cigarette Smoke” Recent Adv. Tob. Sci., 1986, pp. 54-142, vol. 12.
Massey, Eian et al., “Micronucleus induction in V79 cells after direct exposure to whole cigarette smoke” Mutagenesis, 1998, pp. 145-149, vol. 13, No. 2.
Meckley, Daniel et al., “A responsive, sensitive, and reproducible dermal tumor promotion assay for the comparative evaluation of cigarette smoke condensates” Regulatory Toxicology and Pharmacology, 2004, pp. 135-149, vol. 39.
Meckley, Daniel R. et al., “Comparative study of smoke condensates from 1R4F cigarettes that burn tobacco versus ECLIPSE cigarettes that primarily heat tobacco in the SENCAR mouse dermal tumor promotion assay” Food and Chemical Toxicology, 2004, pp. 851-863, vol. 42.
Nakayama, Tsutomu et al., “Cigarette smoke induces DNA single-strand break in human cells” Nature, Apr. 1985, pp. 462-464, vol. 314.
Phillips, Jeremy et al., “Exposure of Bronchial Epithelial Cells to Whole Cigarette Smoke: Assessment of Cellular Responses” ATLA, 2005, pp. 239-248, vol. 33.
Putnam, K.P. et al., “Evaluation of eight in vitro assays for assessing the cytotoxicity of cigarette smoke condensate” Toxicology in Vitro, 2002, pp. 599-607, vol. 16.
Singh, Narendra P. et al., “A Simple Technique for Quantitation of Low Levels of DNA Damage in Individual Cells” Experimental Cell Research, 1988, pp. 184-191, vol. 175.

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