[Inheritable changes in miRNAs expression in HeLa cells after X-ray and mitomycin C treatment].
We identified 40 miRNAs with inherited aberrant expression by multiple parallel sequencing of human HeLa cells irradiated with X rays and mitomycin C. Twenty-two miRNAs were repressed and 15 miRNAs were induced after radiation and mytomycin C treatment. The expression of three miRNAs (miR-10b-5p, miR-148a-3p, and miR-340-5p) decreased after X-ray exposure and increased after mitomycin C treatment. The spectrum of aberrantly expressed miRNAs after X-ray and mitomycin C treatment is different, except for three miRNAs (mir-100-5p, miR-99b-5p, miR-501-3p), which showed the inherited decreased expression after both mutagens. It has been ascertained that for five miRNAs (miR-21-3p, miR-182-5p, miR-19b-3p, miR-30a-3p, and miR-30e-3p) with increased inherited expression, the targets are well-described tumor suppressor genes. For 9 miRNAs (miR-99b-5p, miR-148a-3p, miR-365a-3p, miR-193a-3p, miR-100-5p, miR-99a-5p, miR-29b-3p, miR-340-5p, and miR-23b-3p) with reduced inherited expression, the targets are oncogenes. The obtained results provide further support of the idea that induced epigenetic changes in the genome should be considered when assessing the long-term genetic effects of ionizing radiation and chemical compounds.
V A
VA
Tarasov
D G
DG
Matishov
E F
EF
Shin
N V
NV
Boĭko
N N
NN
Timoshkina
M A
MA
Makhotkin
A M
AM
Lomonosov
A A
AA
Kirpiĭ
D005786:Gene Expression Regulation / Q000187:drug effects* / Q000235:genetics / Q000528:radiation effects*; D006367:HeLa Cells; D006801:Humans; D035683:MicroRNAs / Q000096:biosynthesis* / Q000235:genetics; D016685:Mitomycin / Q000494:pharmacology*; D019384:Nucleic Acid Synthesis Inhibitors / Q000494:pharmacology*; D014965:X-Rays
D035683:MicroRNAs; D019384:Nucleic Acid Synthesis Inhibitors; D016685:Mitomycin