title: 4-(Methylnitrosamino)-1-(3-pyridyl) -1-butanone induces circulating microRNA deregulation in early lung carcinogenesis.
abstract: OBJECTIVE
  To study the alteration of circulating microRNAs in 4-(methylnitrosamino)-1-(3-pyridyl) -1-butanone (NNK)-induced early stage lung carcinogenesis.
  
  
  METHODS
  A lung cancer model of male F344 rats was induced with systemic NNK and levels of 8 lung cancer-associated miRNAs in whole blood and serum of rats were measured by quantitative RT-PCR of each at weeks 1, 5, 10, and 20 following NNK treatment.
  
  
  RESULTS
  No lung cancer was detected in control group and NNK treatment group at week 20 following NNK treatment. The levels of some circulating miRNAs were significantly higher in NNK treatment group than in control group. The miR-210 was down-regulated and the miR-206 was up-regulated in NNK treatment group. The expression level of circulating miRNAs changed from week 1 to week 20 following NNK treatment.
  
  
  CONCLUSIONS
  The expression level of circulating miRNAs is related to NNK-induced early stage lung carcinogenesis in rats and can therefore serve as its potential indicator.
authors.affiliation: School of Public Health and Tropical Medicine, Southern Medical University, Guangzhou 510515, Guangdong, China; Institute for Chemical Carcinogenesis, State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou 510182, Guangdong, China.
authors.forename: Jian Jun
authors.initials: JJ
authors.lastname: Wu
authors.affiliation: Institute for Chemical Carcinogenesis, State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou 510182, Guangdong, China.
authors.forename: Ti
authors.initials: T
authors.lastname: Yang
authors.affiliation: Institute for Chemical Carcinogenesis, State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou 510182, Guangdong, China.
authors.forename: Xun
authors.initials: X
authors.lastname: Li
authors.affiliation: School of Public Health, Guangdong Pharmaceutical University, Guangzhou 510310, Guangdong, China.
authors.forename: Yuan
authors.initials: Y
authors.lastname: Xia
authors.affiliation: Institute for Chemical Carcinogenesis, State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou 510182, Guangdong, China.
authors.forename: Yao
authors.initials: Y
authors.lastname: Zhao
authors.affiliation: School of Public Health and Tropical Medicine, Southern Medical University, Guangzhou 510515, Guangdong, China.
authors.forename: Fei
authors.initials: F
authors.lastname: Zou
authors.affiliation: School of Public Health and Tropical Medicine, Southern Medical University, Guangzhou 510515, Guangdong, China; Institute for Chemical Carcinogenesis, State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou 510182, Guangdong, China.
authors.forename: Yi Guo
authors.initials: YG
authors.lastname: Jiang
mesh_terms: D000230:Adenocarcinoma / Q000139:chemically induced*; D000818:Animals; D063646:Carcinogenesis; D045744:Cell Line, Tumor; D005786:Gene Expression Regulation / Q000502:physiology; D006801:Humans; D008168:Lung / Q000187:drug effects / Q000473:pathology; D008175:Lung Neoplasms / Q000097:blood / Q000139:chemically induced* / Q000378:metabolism; D008297:Male; D035683:MicroRNAs / Q000097:blood / Q000235:genetics / Q000378:metabolism*; D009602:Nitrosamines / Q000494:pharmacology*; D051381:Rats; D011916:Rats, Inbred F344
chemical_list: D035683:MicroRNAs; D009602:Nitrosamines; C016583:4-(N-methyl-N-nitrosamino)-1-(3-pyridyl)-1-butanone
keywords: Circulating microRNA; Early stage; Lung carcinogenesis; NNK