2017
Alternative mechanisms of miR-34a regulation in cancer
SLABÁKOVÁ, Eva, Z. CULIG, Ján REMŠÍK a Karel SOUČEKZákladní údaje
Originální název
Alternative mechanisms of miR-34a regulation in cancer
Autoři
SLABÁKOVÁ, Eva (203 Česká republika), Z. CULIG (40 Rakousko), Ján REMŠÍK (703 Slovensko, domácí) a Karel SOUČEK (203 Česká republika, garant, domácí)
Vydání
CELL DEATH & DISEASE, LONDON, NATURE PUBLISHING GROUP, 2017, 2041-4889
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10601 Cell biology
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 5.638
Kód RIV
RIV/00216224:14310/17:00100427
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000414022900059
Klíčová slova anglicky
EPITHELIAL-MESENCHYMAL TRANSITION; CHRONIC LYMPHOCYTIC-LEUKEMIA; TUMOR-SUPPRESSOR; PROSTATE-CANCER; MICROPROCESSOR COMPLEX; HEPATOCELLULAR-CARCINOMA; NEUROBLASTOMA-CELLS; MICRORNA EXPRESSION; MOTILE CILIOGENESIS; MIRNA BIOGENESIS
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 28. 3. 2018 13:26, Ing. Nicole Zrilić
Anotace
V originále
MicroRNA miR-34a is recognized as a master regulator of tumor suppression. The strategy of miR-34a replacement has been investigated in clinical trials as the first attempt of miRNA application in cancer treatment. However, emerging outcomes promote the re-evaluation of existing knowledge and urge the need for better understanding the complex biological role of miR-34a. The targets of miR-34a encompass numerous regulators of cancer cell proliferation, survival and resistance to therapy. MiR-34a expression is transcriptionally controlled by p53, a crucial tumor suppressor pathway, often disrupted in cancer. Moreover, miR-34a abundance is fine-tuned by context-dependent feedback loops. The function and effects of exogenously delivered or re-expressed miR-34a on the background of defective p53 therefore remain prominent issues in miR-34a based therapy. In this work, we review p53-independent mechanisms regulating the expression of miR-34a. Aside from molecules directly interacting with MIR34A promoter, processes affecting epigenetic regulation and miRNA maturation are discussed. Multiple mechanisms operate in the context of cancer-associated phenomena, such as aberrant oncogene signaling, EMTor inflammation. Since p53-dependent tumor-suppressive mechanisms are disturbed in a substantial proportion of malignancies, we summarize the effects of miR-34a modulation in cell and animal models in the clinically relevant context of disrupted or insufficient p53 function.