PMID- 24428989 OWN - NLM STAT- MEDLINE DCOM- 20150409 LR - 20140116 IS - 1001-9391 (Print) IS - 1001-9391 (Linking) VI - 32 IP - 1 DP - 2014 Jan TI - [Tumor necrosis factor-alpha and NF-kappaB play a role in macrophage-like THP-1 cells promoting coal tar pitch extract-induced tumorigenic transformation of human bronchial epithelial cells]. PG - 38-43 AB - OBJECTIVE: To characterize the role of tumor necrosis factor-alpha (TNF-alpha) and NF-kappaB play a role in macrophage-like THP-1 cells promoting coal tar pitch extract (CTPE)-induced tumorigenic transformation of human bronchial epithelial cells (BEAS-2B). METHODS: From passage 10, CTPE-induced BEAS-2B cells cocultured with THP-1 cells were treated with NF-kappaB inhibitor-Pyrrolidine dithiocarbamate (PDTC) every 3 passages and TNF-alpha antibody every passage. Alterations of cell cycle, karyotype and colony formation in soft agar of BEAS-2B cells at passages 20, indicative of tumorigenicity, were determined, respectively. In addition, mRNA and protein levels of TNF receptor associated factor2 (TRAF2) and Cyclin D1 in BEAS-2B cells were measured with Real Time-PCR and Western blot, respectively. RESULTS: The percentages of S-phase BEAS-2B cells at passage 20 in PDTC group and TNF-alpha antibody group were (33.97+/-2.16)% and (34.29+/-2.04)% respectively, which were less than that in Co-culture+CTPE group of 20th passage [(44.46+/-0.83)%], P < 0.05; The number of cells with aneuploidy in 100 cells in 20th passage PDTC group and TNF-alpha antibody group were 40 and 37, and there were significantly different when comparing to that of 20th passage Co-culture+CTPE group (75); The number of colony formation and the rate of colony formation of BEAS-2B cells in soft agar at passage 20 in PDTC group were (15.17+/-2.48) and (1.51 per thousand+/-0.25 per thousand), (13.33+/-2.58)and (1.33 per thousand+/-0.26 per thousand) in TNF-alpha antibody group, which were less that those in 20th passage Co-culture+CTPE group [(172.33+/-12.09) and (17.23 per thousand+/-1.20 per thousand)], P < 0.05; at the same time, the mRNA and protein levels of TRAF2 and Cyclin D1 in BEAS-2B cells were decreased after PDTC and TNF-alpha antibody treatment. CONCLUSION: TNF-alpha and NF-kappaB could play an important role in THP-1 cells promoting coal tar pitch extract-induced tumorigenic transformation of BEAS-2B cells by influencing the expression of TRAF2 and Cyclin D1. FAU - Feng, Feifei AU - Feng F AD - Department of Toxicology, College of Public Health, Zhengzhou University, Zhengzhou 450001, China. FAU - Zhang, Qiao AU - Zhang Q AD - Department of Toxicology, College of Public Health, Zhengzhou University, Zhengzhou 450001, China. FAU - Zhou, Fanjing AU - Zhou F AD - Department of Toxicology, College of Public Health, Zhengzhou University, Zhengzhou 450001, China. FAU - Wu, Yongjun AU - Wu Y AD - Department of Toxicology, College of Public Health, Zhengzhou University, Zhengzhou 450001, China. FAU - Wu, Yiming AU - Wu Y AD - Department of Toxicology, College of Public Health, Zhengzhou University, Zhengzhou 450001, China. E-mail: wuym369@163.com. LA - chi PT - English Abstract PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - China TA - Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi JT - Zhonghua lao dong wei sheng zhi ye bing za zhi = Zhonghua laodong weisheng zhiyebing zazhi = Chinese journal of industrial hygiene and occupational diseases JID - 8410840 RN - 0 (CCND1 protein, human) RN - 0 (NF-kappa B) RN - 0 (TNF Receptor-Associated Factor 2) RN - 0 (Tumor Necrosis Factor-alpha) RN - 136601-57-5 (Cyclin D1) RN - 8007-45-2 (Coal Tar) SB - IM MH - Bronchi/cytology MH - Cell Line MH - Cell Transformation, Neoplastic/*drug effects MH - Coal Tar/*toxicity MH - Cyclin D1/metabolism MH - Epithelial Cells/cytology MH - Humans MH - Macrophages/*cytology MH - NF-kappa B/*metabolism MH - TNF Receptor-Associated Factor 2/metabolism MH - Tumor Necrosis Factor-alpha/*metabolism EDAT- 2014/01/17 06:00 MHDA- 2015/04/10 06:00 CRDT- 2014/01/17 06:00 PHST- 2014/01/17 06:00 [entrez] PHST- 2014/01/17 06:00 [pubmed] PHST- 2015/04/10 06:00 [medline] PST - ppublish SO - Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi. 2014 Jan;32(1):38-43.