A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Epigenetic Silencing of the Key Antioxidant Enzyme Catalase in Karyotypically Abnormal Human Pluripotent Stem Cells
Tekijät: Konki M, Pasumarthy K, Malonzo M, Sainio A, Valensisi C, Soderstrom M, Emani MR, Stubb A, Narva E, Ghimire B, Laiho A, Jarvelainen H, Lahesmaa R, Lahdesmaki H, Hawkins RD, Lund RJ
Kustantaja: NATURE PUBLISHING GROUP
Julkaisuvuosi: 2016
Journal: Scientific Reports
Tietokannassa oleva lehden nimi: SCIENTIFIC REPORTS
Lehden akronyymi: SCI REP-UK
Artikkelin numero: ARTN 22190
Vuosikerta: 6
Sivujen määrä: 8
ISSN: 2045-2322
DOI: https://doi.org/10.1038/srep22190
Epigenomic regulation is likely to be important in the maintenance of genomic integrity of human pluripotent stem cells, however, the mechanisms are unknown. We explored the epigenomes and transcriptomes of human pluripotent stem cells before and after spontaneous transformation to abnormal karyotypes and in correlation to cancer cells. Our results reveal epigenetic silencing of Catalase, a key regulator of oxidative stress and DNA damage control in abnormal cells. Our findings provide novel insight into the mechanisms associated with spontaneous transformation of human pluripotent stem cells towards malignant fate. The same mechanisms may control the genomic stability of cells in somatic tissues.
