Journal
SEMINARS IN CANCER BIOLOGY
Volume 76, Issue -, Pages 163-172Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.semcancer.2021.03.029
Keywords
Long non-coding RNAs; Metals; Arsenic; Cadmium; Chromium; Nickel; Environmental carcinogens; Metal carcinogenesis; Environmental carcinogenesis; Epigenetics
Categories
Funding
- National Institutes of Health [R01ES026151, R01ES028256, R01ES029496, R01ES029942]
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Long non-coding RNAs (lncRNAs) are RNA molecules over 200 nucleotides in length that play important roles in regulating gene expression and normal physiological processes. Dysregulation of lncRNAs is closely associated with the development and progression of diseases, particularly cancer. Environmental carcinogens such as metal carcinogens may promote cancer development by affecting lncRNA expression.
Long non-coding RNAs (lncRNAs) refer to a class of RNA molecules that are more than 200 nucleotides in length and usually lack protein-coding capacity. LncRNAs play important roles in regulating gene expression as well as many aspects of normal physiological processes. Dysregulations of lncRNA expressions and functions are considered to be critically involved in the development and progression of many diseases especially cancer. The lncRNA research in the field of cancer biology over the past decade reveals that a large number of lncRNAs are dysregulated in various types of cancer and that dysregulated lncRNAs may play important roles in cancer initiation, metastasis and therapeutic responses. Metal carcinogens and other common environmental carcinogens such as polycyclic aromatic hydrocarbons, fine particular matters, cigarette smoke, ultraviolet and ionizing radiation are important cancer etiology factors. However, the mechanisms of how metal carcinogens and other common environmental carcinogen exposures initiate cancer and promote cancer progression remain largely unknown. Accumulating evidence show that exposure to metal carcinogens and other common environmental carcinogens dysregulate lncRNA expression in various model systems, which may offer novel mechanistic insights for environmental carcinogenesis. This review will first provide a brief introduction about lncRNA biology and the mechanisms of lncRNA functions, followed by summarizing and discussing recent studies about lncRNA dysregulation by metal carcinogen and other common environment carcinogen exposures and the potential roles of dysregulated lncRNAs in environmental carcinogenesis. A perspective for future studies in this emerging and important field is also presented.
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