Skip Navigation
National Institutes of Health: National Cancer Institute: Division of Cancer Control and Population Sciences
Grant Details

Grant Number: 5R01CA139633-03 Interpret this number
Primary Investigator: Bhatia, Smita
Organization: Beckman Research Institute/City Of Hope
Project Title: Role of Genetic Susceptibility in Therapy-Related Subsequent Malignancies
Fiscal Year: 2012
Back to top


Abstract

DESCRIPTION (provided by applicant): By 2010, there will be 12 million cancer survivors in the U.S., with an annual growth rate of 2%. The cumulative incidence of severe or life-threatening chronic health conditions in cancer survivors exceeds 40% at 30 years. This creates an obligation to understand the etiology of these adverse conditions, in order to develop targeted prevention/ intervention strategies and reduce long-term morbidity. Subsequent malignant neoplasms (SMNs) are one of the most devastating adverse events faced by cancer survivors, and are a leading cause of non- relapse mortality. Although, well-defined associations exist between chemoradiotherapy and SMNs (e.g., chemotherapy and therapy-related leukemia; ionizing radiation and subsequent breast or thyroid cancer after Hodgkin lymphoma), there is considerable inter-individual variability, which could be explained by underlying genetic susceptibility - an area that is currently understudied. We have successfully established a mechanism to identify a large number of cancer survivors with SMNs (cases: n=1600) and those without (controls: n=3200). We have also implemented protocols to obtain detailed therapeutic summaries and procure DNA from the cases and controls. Using a case-control study design, this application will explore the role of genetic susceptibility, by examining associations between polymorphisms in specific candidate genes, and the risk of SMN. Because of the well-defined relation between SMNs and specific chemotherapy and ionizing radiation, the focus will be on genes encoding drug metabolizing enzymes, drug-transporter genes, and genes in DNA repair pathways. Based on extensive literature review as well as study of biological pathways involved in DNA repair, and genes involved in drug metabolism and transport of chemotherapeutic agents implicated in SMNs, 771 polymorphisms in 66 genes involved in DNA repair, and 228 polymorphisms in 35 genes involved in drug metabolism/ transport have been selected. The application tests the hypotheses that the risk of treatment-related SMNs is associated with specific therapeutic exposures, variants in drug-metabolizing genes, drug transport genes, DNA repair genes, and the joint effects of specific therapeutic exposures with these susceptibility genes. The application will examine main effects of therapeutic exposures and genes for risk of SMNs and of its histologic and cytogenetic subtypes, and will also examine the role of gene-gene and gene-environment interactions in SMN development. This application's innovation lies in using a comprehensive and biologically plausible candidate gene approach to examine genetic variants in combination with well-known therapeutic exposures associated with SMNs. The application will enhance our understanding of the pathogenesis of SMN, and facilitate identification of cancer survivors at high-risk for development of SMNs, in turn facilitating primary prevention (individualizing therapy in future cancer populations) and secondary prevention (targeted screening, behavior modification, chemoprevention in survivors). Identification of pertinent genes and pathways will provide critical information regarding pathogenesis of SMN, with potential application to de novo cancer. PUBLIC HEALTH RELEVANCE: Second cancers are one of the most devastating long-term complications faced by cancer survivors, and are a common cause of premature death for this vulnerable population. This application aims to understand the role of genetic susceptibility in the development of second cancers. At its completion, the application will enhance our understanding of the pathogenesis of second cancers, and facilitate identification of survivors at high-risk for development of SMNs, in turn facilitating primary prevention (individualizing therapy in future cancer populations) and secondary prevention (targeted screening, behavior modification, chemoprevention in survivors).

Back to top


Publications

Congenital Heart Disease In Down Syndrome: An Echocardiographic Study
Authors: Bhatia S. , Verma I.C. , Shrivastava S. .
Source: Indian Pediatrics, 1992 Sep; 29(9), p. 1113-6.
PMID: 1452307
Related Citations

Disparities In Cancer Outcomes: Lessons Learned From Children With Cancer
Authors: Bhatia S. .
Source: Pediatric Blood & Cancer, 2011 Jun; 56(6), p. 994-1002.
PMID: 21328525
Related Citations

Nci, Nhlbi First International Consensus Conference On Late Effects After Pediatric Hematopoietic Cell Transplantation: Etiology And Pathogenesis Of Late Effects After Hct Performed In Childhood--methodologic Challenges
Authors: Bhatia S. , Davies S.M. , Scott Baker K. , Pulsipher M.A. , Hansen J.A. .
Source: Biology Of Blood And Marrow Transplantation : Journal Of The American Society For Blood And Marrow Transplantation, 2011 Oct; 17(10), p. 1428-35.
PMID: 21763253
Related Citations

Role Of Genetic Susceptibility In Development Of Treatment-related Adverse Outcomes In Cancer Survivors
Authors: Bhatia S. .
Source: Cancer Epidemiology, Biomarkers & Prevention : A Publication Of The American Association For Cancer Research, Cosponsored By The American Society Of Preventive Oncology, 2011 Oct; 20(10), p. 2048-67.
PMID: 21980013
Related Citations

Genetic Susceptibility To Therapy-related Leukemia After Hodgkin Lymphoma Or Non-hodgkin Lymphoma: Role Of Drug Metabolism, Apoptosis And Dna Repair
Authors: Ding Y. , Sun C.L. , Li L. , Li M. , Francisco L. , Sabado M. , Hahn B. , Gyorffy J. , Noe J. , Larson G.P. , et al. .
Source: Blood Cancer Journal, 2012 Mar; 2(3), p. e58.
PMID: 22829253
Related Citations

Genetically Mediated Nf1 Loss In Mice Promotes Diverse Radiation-induced Tumors Modeling Second Malignant Neoplasms
Authors: Choi G. , Huang B. , Pinarbasi E. , Braunstein S.E. , Horvai A.E. , Kogan S. , Bhatia S. , Faddegon B. , Nakamura J.L. .
Source: Cancer Research, 2012-12-15 00:00:00.0; 72(24), p. 6425-34.
PMID: 23071067
Related Citations

Long-term Complications Of Therapeutic Exposures In Childhood: Lessons Learned From Childhood Cancer Survivors
Authors: Bhatia S. .
Source: Pediatrics, 2012 Dec; 130(6), p. 1141-3.
PMID: 23166341
Related Citations

Therapy-related Myelodysplasia And Acute Myeloid Leukemia
Authors: Bhatia S. .
Source: Seminars In Oncology, 2013 Dec; 40(6), p. 666-75.
PMID: 24331189
Related Citations

Genetic Variation As A Modifier Of Association Between Therapeutic Exposure And Subsequent Malignant Neoplasms In Cancer Survivors
Authors: Bhatia S. .
Source: Cancer, 2015-03-01 00:00:00.0; 121(5), p. 648-63.
PMID: 25355167
Related Citations

Deciphering Genome Environment Wide Interactions Using Exposed Subjects Only
Authors: Zhao L.P. , Fan W. , Goodman G. , Radich J. , Martin P. .
Source: Genetic Epidemiology, 2015 Jul; 39(5), p. 334-46.
PMID: 25694100
Related Citations