Genetic and environmental factors in cancer

这个项目包括两个肺癌研究和我与NIEHS姐妹研究的工作。第一项是洛杉矶非裔美国人和高加索人肺癌遗传易感性的病例对照研究。我在南加州大学任教期间进行了这项研究。在这项研究中，我研究了大量与肺癌相关的基因多态。我正在与我以前在南加州大学的学生合作，对异硫氰酸盐、GSTM1基因多态性和肺癌风险进行分析，这是我在上海研究发现的后续。 第二项研究是一个汇集项目，我将我的肺癌数据贡献给一个合作研究，以汇集许多肺癌研究，为研究基因与环境的相互作用提供足够的动力。我是这个集合项目的顾问委员会的成员。 第三项肺癌研究是与上海男性前瞻性队列研究中国合作进行的。这项研究是在南加州大学进行的。在过去的几年里，我一直在这个队列中研究肺癌的遗传、饮食和环境因素。我用所谓的嵌套病例对照研究设计完成了这项工作。这使用了所有确诊的肺癌病例的样本和来自队列中尚未患上癌症的一组匹配的对照组的样本。这项研究的主要优势是前瞻性设计和上海队列的独特曝光。我已经在上海的队列中发表了关于基因-饮食相互作用(异硫氰酸盐和GSTM1多态)和IGF-1与肺癌关系的前瞻性研究。遗传学研究使用了从档案血清样本中提取的DNA，这在逻辑上提出了挑战。这项由外部资助的研究最近由NCI续签了五年的后续行动。我写了拨款中与肺癌有关的部分。受资助的肺癌工作包括研究血清硒水平与硒蛋白多态之间的相互作用，以及另一项研究黄曲霉毒素摄入与DNA修复基因多态之间的相互作用的生物标志物。这项研究是由外部资助的。 在其他乳腺癌研究中，我也是Sister研究的合作者，参与了最初的概念。

This project includes two lung cancer studies and my work with the NIEHS sister study. The first is a case-control study of genetic susceptibility to lung cancer in African-Americans and Caucasians in Los Angeles. I conducted this study while a faculty member at the University of Southern California. I have examined a large number of genetic polymorphisms relevant to lung cancer in this study. I am collaborating with my former student from USC on an analysis of isothiocyanates, GSTM1 polymorphisms and lung cancer risk, a follow-up of my Shanghai study finding. A second study is a pooling project where I have contributed my lung cancer data to a collaborative study to pool across a number of lung cancer studies to provide sufficient power for studying gene-environment interactions. I serve on the advisory committee for this pooling project. The third lung cancer study is a collaboration with a prospective cohort study of men in Shanghai, China. This study is based at the University of Southern California. I have been investigating genetic, dietary and environmental factors for lung cancer in this cohort for the past several years. I have done this work using what is called a nested-case control study design. This uses samples from all diagnosed cases of lung cancer and a matched set of controls from the cohort who have not developed cancer. The major strengths of this study are the prospective design and the unique exposures of the Shanghai Cohort. I have published prospective studies of a gene-diet interaction (isothiocyanates and GSTM1 polymorphism) and IGF-1 in relation to lung cancer in the Shanghai Cohort. The genetic studies have used DNA extracted from archival serum samples which presents logistic challenges. This extramurally funded study has recently been renewed for an additional five years of follow-up by NCI. I wrote the portions of the grant dealing with lung cancer. The lung cancer work that was funded includes studying interactions between selenium levels in serum and polymorphisms in selenoproteins and another study of biomarkers of aflatoxin intake in interaction with polymorphisms in DNA repair genes. This study is extramurally funded. In other breast cancer research, I am also a collaborator on the Sister Study having been involved in the initial concept.