Biomarker phenotypes of air pollution and cancer risk in India

印度空气污染和癌症风险的生物标志物表型

• 批准号: 10665050
• 负责人: Rajesh Dikshit
• 金额: $ 30.32万
• 依托单位: UNIVERSITY OF MINNESOTA
• 依托单位国家: 美国
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-09-23 至 2026-06-30
• 项目状态: 未结题
• 来源: https://reporter.nih.gov/project-details/10665050
• 关键词: 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol; Aerodigestive Tract; Air Pollutants; Air Pollution; Albumins; Aldehydes; Area; Aromatic Polycyclic Hydrocarbons; Biological; Biological Assay; Biological Markers; Biological Monitoring; Cancer Center; Carcinogens; Case/Control Studies; Chemicals; Cohort Studies; Collaborations; Cotinine; Country; Data; Development; Devices; Epidemiology; Exposure to; Frequencies; Future; Goals; Head and Neck Cancer; High Prevalence; India; Individual; Indoor Air Pollution; Intervention; Investigation; Knowledge; Laboratories; Laboratory Research; Life Style; Malignant Neoplasms; Malignant neoplasm of larynx; Malignant neoplasm of lung; Measurement; Measures; Metals; Minnesota; Occupational Exposure; Occupations; Oral; Outcome Study; Participant; Plasma; Policies; Population; Populations at Risk; Preventive measure; Questionnaires; Research; Risk; Risk Factors; Role; Sampling; Site; Smokeless Tobacco; Smoker; Smoking; Source; Subgroup; Testing; Tobacco; Tobacco use; Universities; University of Minnesota Cancer Center; Urine; adduct; air sampler; air sampling; ambient air pollution; anticancer research; biomarker panel; cancer epidemiology; cancer prevention; cancer risk; carcinogenicity; case control; chemical carcinogen; cohort; demographics; design; dietary; disorder risk; expectation; experience; head and neck cancer patient; insight; malignant oropharynx neoplasm; metropolitan; non-smoker; non-smoking; novel; novel marker; oxidative DNA damage; phenotypic biomarker; pollutant; recruit; residence; smokeless tobacco use; smokeless tobacco user; smoking prevalence; specific biomarkers; tool; toxicant; uptake

ABSTRACT Chemical toxicants and carcinogens present in the polluted air are the likely causative agents in the associated cancers of aerodigestive tract in exposed individuals. Understanding the relationship between the level of exposure to these pollutants and the risk of cancer is key to identifying individuals or populations at risk and informing the development of preventive measures. The overarching goal of this study is to advance such understanding through a collaborative research between the Masonic Cancer Center, University of Minnesota and Centre for Cancer Epidemiology (CCE) in Mumbai, India. We will employ a panel of established and novel air pollution-related biomarkers to test our overall hypothesis that the uptake of air pollution-related chemical carcinogens is associated with the risk for LC and HNC in Indian nonsmokers. In Aims 1 and 2, we will conduct case-control studies to assess the association of air pollution-related biomarkers in plasma with LC and HNC, respectively, in Indian nonsmokers. To achieve the goals of these Aims, we will use available biological samples and questionnaire data from the corresponding epidemiological cohorts conducted by the CCE. We will develop capacity for biomarker measurements at CCE by transferring the U.S. team's expertise in this area. In Aim 3, we will recruit healthy nonsmokers with various levels of usual exposures to air pollution, based on their occupation or lifestyle. We will compare a panel of biomarkers of exposure and effect across the groups and correlate to pollutant levels collected through personal air sampling devices worn by a subset of participants. We will use specially designed air samplers to characterize the chemical profile of various air pollution scenarios. This aim will aid in the interpretation of biomarker data generated in Aims 1 and 2, and will inform future biomarker-based studies of air pollution in India. An important outcome of this study is the development of capacity for future biomarker research of cancer risk in India using CCE cohorts. Such research can be further expanded to other population subgroups (e.g., smokers or occupationally exposed individuals) and additional environmental and dietary exposures in India.

抽象的 污染空气中存在的化学有毒物质和致癌物是相关的导致药物 暴露的个体中的机动道癌。了解水平之间的关系 暴露于这些污染物和癌症的风险是确定有风险的个人或人群的关键和 告知预防措施的发展。这项研究的总体目标是进步 通过明尼苏达大学共济会癌症中心之间的合作研究理解 印度孟买的癌症流行病学中心（CCE）。我们将采用一个既定和新颖的小组 空气污染相关的生物标志物，以测试我们的整体假设，即吸收与空气污染相关的化学物质 致癌物与印度非吸烟者中LC和HNC的风险有关。在目标1和2中，我们将进行 病例对照研究，以评估血浆中与LC和HNC的空气污染相关生物标志物的关联， 分别在印度非吸烟者中。为了实现这些目标的目标，我们将使用可用的生物学 来自CCE进行的相应流行病学人群的样品和问卷数据。我们 通过转移美国团队在此方面的专业知识，将开发CCE生物标志物测量的能力 区域。在AIM 3中，我们将招募健康的非吸烟者，并以各种水平的空气污染暴露，基于空气污染 在他们的职业或生活方式上。我们将比较一系列在整个范围内暴露和效果的生物标志物 组并与通过个人空气抽样设备收集的污染物水平相关 参与者。我们将使用专门设计的空气采样器来表征各种空气的化学轮廓 污染方案。这个目标将有助于解释目标1和2中产生的生物标志物数据，并将 告知印度未来生物标志物的空气污染研究。这项研究的一个重要结果是 使用CCE队列开发印度癌症风险的未来生物标志物研究能力。这样的 研究可以进一步扩展到其他人口亚组（例如，吸烟者或职业暴露 个人）以及印度的其他环境和饮食暴露。