Specific long non-coding RNAs response to occupational PAHs exposure in coke oven workers

Publication date: Available online 4 January 2016 Source:Toxicology Reports Author(s): Chen Gao, Zhini He, Jie Li, Xiao Li, Qing Bai, Zhengbao Zhang, Xiao Zhang, Shan Wang, Xinhua Xiao, Fangping Wang, Yan Yan, Daochuan Li, Liping Chen, Xiaowen Zeng, Yongmei Xiao, Guanghui Dong, Yuxin Zheng, Qing Wang, Wen Chen To explore whether the alteration of lncRNA expression is correlated with polycyclic aromatic hydrocarbons (PAHs) exposure and DNA damage, we examined PAHs external and internal exposure, DNA damage and lncRNAs (HOTAIR, MALAT1, TUG1 and GAS5) expression in peripheral blood lymphocytes (PBLCs) of 150 male coke oven workers and 60 non-PAHs exposure workers. We found the expression of HOTAIR, MALAT1, and TUG1 were enhanced in PBLCs of coke oven workers and positively correlated with the levels of external PAHs exposure (adjusted P trend<0.001 for HOTAIR and MALAT1, adjusted P trend =0.006 for TUG1). However, only HOTAIR and MALAT1 were significantly associated with the level of internal PAHs exposure (urinary 1-hydroxypyrene) with adjusted β=0.298, P =0.024 for HOTAIR and β=0.090, P =0.034 for MALAT1. In addition, the degree of DNA damage was positively associated with MALAT1 and HOTAIR expression in PBLCs of all subjects (adjusted β=0.024, P =0.002 for HOTAIR and β=0.007, P =0.003 for MALAT1). Moreover, we revealed that the global histone 3 lysine 27 trimethylation (H3K27me3) modification was positively associated with ...
Source: Toxicology Reports - Category: Toxicology Source Type: research