Abstract

Colorectal cancer is the second leading cause of cancer death in the United States. In 1996, approximately 133,500 new cases will occur and approximately 55,000 persons will die from this disease. Several studies have shown that screening asymptomatic populations for colorectal neoplasia can reduce mortality. Molecular genetic studies have demonstrated that the mutational activation of ras proto-oncogenes and mutational inactivation of tumor suppressor genes are associated with colorectal tumorigenesis. The objective of this proposal is to explore genetic approaches for early detection of colorectal cancer. We seek to achieve the following: 1. Generate a robust method for detecting ras gene mutations in stool specimens in an effort to provide a single specimen screening test for colorectal cancer. Evaluate test sensitivity and specificity through retrospective analysis of stool samples previously obtained from subjects with documented carcinomas or adenomas. 2. Compare the genetic method for detecting fecal ras oncogene mutation with an immunochemical test for fecal occult blood in a prospective study in patients undergoing surveillance colonoscopy.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Cancer Institute (NCI)
Type
Specialized Center (P50)
Project #
2P50CA062924-04
Application #
6237455
Study Section
Project Start
1997-02-28
Project End
1997-12-31
Budget Start
1996-10-01
Budget End
1997-09-30
Support Year
4
Fiscal Year
1997
Total Cost
Indirect Cost

  Institution

Name
Johns Hopkins University
Department
Type
DUNS #
045911138
City
Baltimore
State
MD
Country
United States
Zip Code
21218

  Publications

Dejea, Christine M; Fathi, Payam; Craig, John M et al. (2018) Patients with familial adenomatous polyposis harbor colonic biofilms containing tumorigenic bacteria. Science 359:592-597
Staedtke, Verena; Bai, Ren-Yuan; Kim, Kibem et al. (2018) Disruption of a self-amplifying catecholamine loop reduces cytokine release syndrome. Nature 564:273-277
Deng, Yang; Tu, Huakang; Pierzynski, Jeanne A et al. (2018) Determinants and prognostic value of quality of life in patients with pancreatic ductal adenocarcinoma. Eur J Cancer 92:20-32
Tamura, Koji; Yu, Jun; Hata, Tatsuo et al. (2018) Mutations in the pancreatic secretory enzymes CPA1 and CPB1 are associated with pancreatic cancer. Proc Natl Acad Sci U S A 115:4767-4772
Chung, Liam; Thiele Orberg, Erik; Geis, Abby L et al. (2018) Bacteroides fragilis Toxin Coordinates a Pro-carcinogenic Inflammatory Cascade via Targeting of Colonic Epithelial Cells. Cell Host Microbe 23:203-214.e5
Nakamura, Hideki; Lee, Albert A; Afshar, Ali Sobhi et al. (2018) Intracellular production of hydrogels and synthetic RNA granules by multivalent molecular interactions. Nat Mater 17:79-89
Al Efishat, Mohammad A; Attiyeh, Marc A; Eaton, Anne A et al. (2018) Multi-institutional Validation Study of Pancreatic Cyst Fluid Protein Analysis for Prediction of High-risk Intraductal Papillary Mucinous Neoplasms of the Pancreas. Ann Surg 268:340-347
Cruz-Correa, Marcia; Hylind, Linda M; Marrero, Jessica Hernandez et al. (2018) Efficacy and Safety of Curcumin in Treatment of Intestinal Adenomas in Patients With Familial Adenomatous Polyposis. Gastroenterology 155:668-673
Christmas, Brian J; Rafie, Christine I; Hopkins, Alexander C et al. (2018) Entinostat Converts Immune-Resistant Breast and Pancreatic Cancers into Checkpoint-Responsive Tumors by Reprogramming Tumor-Infiltrating MDSCs. Cancer Immunol Res 6:1561-1577
Blair, Alex B; Murphy, Adrian (2018) Immunotherapy as a treatment for biliary tract cancers: A review of approaches with an eye to the future. Curr Probl Cancer 42:49-58

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