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Thirdhand smoke exposure promotes gastric tumor development in mouse and human.
Jiang, Chengfei; Chen, Lingyan; Ye, Chunping; Schick, Suzaynn F; Jacob, Peyton; Zhuang, Yingjia; Inman, Jamie L; Chen, Changbin; Gundel, Lara A; Chang, Hang; Snijders, Antoine M; Zou, Xiaoping; Mao, Jian-Hua; Hang, Bo; Wang, Pin.
Affiliation
  • Jiang C; Department of Gastroenterology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, China.
  • Chen L; Department of Gastroenterology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, China.
  • Ye C; Department of Obstetrics and Gynecology, Nanjing Maternity and Child Health Care Hospital, Women's Hospital of Nanjing Medical University, Nanjing, China.
  • Schick SF; Department of Medicine, Division of Occupational Environmental and Climate Medicine, University of California, San Francisco, CA 94143, USA.
  • Jacob P; Department of Medicine, Division of Cardiology, Clinical Pharmacology Program, University of California, San Francisco, CA 94143, USA.
  • Zhuang Y; Department of Gastroenterology, Nanjing Drum Tower Hospital, Clinical College of Nanjing Medical University, Nanjing, China.
  • Inman JL; Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
  • Chen C; Shanghai Institute of Immunity and Infection, Chinese Academy of Science, Shanghai, China.
  • Gundel LA; Indoor Environment Group, Energy Technologies Area, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
  • Chang H; Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
  • Snijders AM; Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
  • Zou X; Department of Gastroenterology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, China. Electronic address: zouxp@nju.edu.cn.
  • Mao JH; Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA. Electronic address: jhmao@lbl.gov.
  • Hang B; Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA. Electronic address: Bo_Hang@lbl.gov.
  • Wang P; Department of Gastroenterology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, China; Department of Gastroenterology, Nanjing Drum Tower Hospital, Clinical College of Nanjing Medical University, Nanjing, China. Electronic address: pinwang729@gmail.com.
Environ Int ; 191: 108986, 2024 Sep.
Article in En | MEDLINE | ID: mdl-39255676
ABSTRACT
The pollution of indoor environments and the consequent health risks associated with thirdhand smoke (THS) are increasingly recognized in recent years. However, the carcinogenic potential of THS and its underlying mechanisms have yet to be thoroughly explored. In this study, we examined the effects of short-term THS exposure on the development of gastric cancer (GC) in vitro and in vivo. In a mouse model of spontaneous GC, CC036, we observed a significant increase in gastric tumor incidence and a decrease in tumor-free survival upon THS exposure as compared to control. RNA sequencing of primary gastric epithelial cells derived from CC036 mice showed that THS exposure increased expression of genes related to the extracellular matrix and cytoskeletal protein structure. We then identified a THS exposure-induced 91-gene expression signature in CC036 and a homologous 84-gene signature in human GC patients that predicted the prognosis, with secreted phosphoprotein 1 (SPP1) and tribbles pseudokinase 3 (TRIB3) emerging as potential targets through which THS may promote gastric carcinogenesis. We also treated human GC cell lines in vitro with media containing various concentrations of THS, which, in some exposure dose range, significantly increased their proliferation, invasion, and migration. We showed that THS exposure could activate the epithelial-mesenchymal transition (EMT) pathway at the transcript and protein level. We conclude that short-term exposure to THS is associated with an increased risk of GC and that activation of the EMT program could be one potential mechanism. Increased understanding of the cancer risk associated with THS exposure will help identify new preventive and therapeutic strategies for tobacco-related disease as well as provide scientific evidence and rationale for policy decisions related to THS pollution control to protect vulnerable subpopulations such as children.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Stomach Neoplasms / Tobacco Smoke Pollution Limits: Animals / Humans Language: En Journal: Environ Int Year: 2024 Document type: Article Affiliation country: China Country of publication: Países Bajos

Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Stomach Neoplasms / Tobacco Smoke Pollution Limits: Animals / Humans Language: En Journal: Environ Int Year: 2024 Document type: Article Affiliation country: China Country of publication: Países Bajos