PMID- 32623224 OWN - NLM STAT- MEDLINE DCOM- 20210111 LR - 20210111 IS - 1873-6750 (Electronic) IS - 0160-4120 (Linking) VI - 143 DP - 2020 Oct TI - Impact of environmental exposure to persistent organic pollutants on lung cancer risk. PG - 105925 LID - S0160-4120(20)31880-8 [pii] LID - 10.1016/j.envint.2020.105925 [doi] AB - BACKGROUND: Recent studies suggest that high pre-diagnostic serum concentrations of persistent organic pollutants (POPs) might result in the development of cancers in the general population. However, the association between pre-diagnostic serum POP concentrations and lung cancer risk has not been studied. Here, we evaluated associations between low-dose environmental exposure to POPs and risk of lung cancer using pre-diagnostic serum samples in a case-cohort study based on a population-based prospective cohort. METHODS: We conducted a case-cohort study based on the Korean National Cancer Center Community Cohort, from which we included 118 lung cancer cases and 252 controls. Serum concentrations of POPs were measured by high resolution gas chromatography/high-resolution mass spectrometry, and data were analyzed using multivariable Cox proportional-hazards regression models. RESULTS: Risk of lung cancer increased per unit increase in the natural log-transformed concentrations of the sum of chlordane congeners, total PCBs, and all PCBs subgrouped by the number of chlorines or ortho- substituted chlorines on the molecules, except for tri/tetrachlorobiphenyls, in all models. Among individual POP analytes with a detection rate >80%, after Bonferroni adjustment, only trans-nonachlor was associated with lung cancer risk. In categorical models, risk of lung cancer was associated with serum concentration of chlordane (4th vs. 1st quartile, hazard ratio [95% confidence interval], 8.79 [2.77-27.97]). Dose-dependent relationships were also found between risk of lung cancer and serum concentrations of PCBs regardless of their degree of chlorination, substitution pattern, or binding affinity to receptors (total PCBs, P = 0.002; mid-chlorinated PCBs, P = 0.004; high-chlorinated PCBs, P < 0.001; non- and mono-ortho PCBs, P = 0.031; di-ortho PCBs, P = 0.003; PCBs with dioxin-like activity, P = 0.011; non-dioxin-like non-/mono-ortho PCBs, P = 0.060). CONCLUSIONS: Serum concentrations of chlordane and PCBs are associated with risk of lung cancer in the general population, even decades after the ban on their production and use. CI - Copyright (c) 2020 The Authors. Published by Elsevier Ltd.. All rights reserved. FAU - Park, Eun Young AU - Park EY AD - Division of Cancer Prevention & Early Detection, National Cancer Control Institute, National Cancer Center, Goyang-si, Gyeonggi-do 10408, Republic of Korea. FAU - Park, Eunjung AU - Park E AD - Division of Cancer Prevention & Early Detection, National Cancer Control Institute, National Cancer Center, Goyang-si, Gyeonggi-do 10408, Republic of Korea. FAU - Kim, Jinsun AU - Kim J AD - Division of Cancer Prevention & Early Detection, National Cancer Control Institute, National Cancer Center, Goyang-si, Gyeonggi-do 10408, Republic of Korea. FAU - Oh, Jin-Kyoung AU - Oh JK AD - Division of Cancer Prevention & Early Detection, National Cancer Control Institute, National Cancer Center, Goyang-si, Gyeonggi-do 10408, Republic of Korea; Department of Cancer Control and Population Health, National Cancer Center Graduate School of Cancer Science and Policy, Goyang-si, Gyeonggi-do 10408, Republic of Korea. FAU - Kim, Byungmi AU - Kim B AD - Division of Cancer Prevention & Early Detection, National Cancer Control Institute, National Cancer Center, Goyang-si, Gyeonggi-do 10408, Republic of Korea. FAU - Hong, Yun-Chul AU - Hong YC AD - Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea; Institute of Environmental Medicine, Seoul National University Medical Research Center, Seoul, Republic of Korea; Environmental Health Center, Seoul National University College of Medicine, Seoul, Republic of Korea. FAU - Lim, Min Kyung AU - Lim MK AD - Division of Cancer Prevention & Early Detection, National Cancer Control Institute, National Cancer Center, Goyang-si, Gyeonggi-do 10408, Republic of Korea; Department of Cancer Control and Population Health, National Cancer Center Graduate School of Cancer Science and Policy, Goyang-si, Gyeonggi-do 10408, Republic of Korea. Electronic address: mickey@ncc.re.kr. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20200702 PL - Netherlands TA - Environ Int JT - Environment international JID - 7807270 RN - 0 (Environmental Pollutants) RN - DFC2HB4I0K (Polychlorinated Biphenyls) SB - IM MH - Cohort Studies MH - Environmental Exposure/adverse effects MH - *Environmental Pollutants/toxicity MH - Humans MH - *Lung Neoplasms/chemically induced/epidemiology MH - Persistent Organic Pollutants MH - *Polychlorinated Biphenyls/toxicity MH - Prospective Studies OTO - NOTNLM OT - Chlordane OT - Environmental exposure OT - Lung cancer OT - Persistent organic pollutants OT - Polychlorinated biphenyls EDAT- 2020/07/06 06:00 MHDA- 2021/01/12 06:00 CRDT- 2020/07/06 06:00 PHST- 2019/12/17 00:00 [received] PHST- 2020/06/02 00:00 [revised] PHST- 2020/06/21 00:00 [accepted] PHST- 2020/07/06 06:00 [pubmed] PHST- 2021/01/12 06:00 [medline] PHST- 2020/07/06 06:00 [entrez] AID - S0160-4120(20)31880-8 [pii] AID - 10.1016/j.envint.2020.105925 [doi] PST - ppublish SO - Environ Int. 2020 Oct;143:105925. doi: 10.1016/j.envint.2020.105925. Epub 2020 Jul 2.