MicroRNA-195 inhibits the proliferation of human glioma cells by directly targeting cyclin D1 and cyclin E1.

Glioma proliferation is a multistep process during which a sequence of genetic and epigenetic alterations randomly occur to affect the genes controlling cell proliferation, cell death and genetic stability. microRNAs are emerging as important epigenetic modulators of multiple target genes, leading t...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Wang Hui, Lu Yuntao, Luo Lun, Li WenSheng, Liang ChaoFeng, He HaiYong, Ba Yueyang
Formato: article
Lenguaje:EN
Publicado: Public Library of Science (PLoS) 2013
Materias:
R
Q
Acceso en línea:https://doaj.org/article/07902bf98a9c4831a1dc3c91ec4909f4
Etiquetas: Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
id oai:doaj.org-article:07902bf98a9c4831a1dc3c91ec4909f4
record_format dspace
spelling oai:doaj.org-article:07902bf98a9c4831a1dc3c91ec4909f42021-11-18T07:59:47ZMicroRNA-195 inhibits the proliferation of human glioma cells by directly targeting cyclin D1 and cyclin E1.1932-620310.1371/journal.pone.0054932https://doaj.org/article/07902bf98a9c4831a1dc3c91ec4909f42013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23383003/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203Glioma proliferation is a multistep process during which a sequence of genetic and epigenetic alterations randomly occur to affect the genes controlling cell proliferation, cell death and genetic stability. microRNAs are emerging as important epigenetic modulators of multiple target genes, leading to abnormal cellular signaling involving cellular proliferation in cancers.In the present study, we found that expression of miR-195 was markedly downregulated in glioma cell lines and human primary glioma tissues, compared to normal human astrocytes and matched non-tumor associated tissues. Upregulation of miR-195 dramatically reduced the proliferation of glioma cells. Flow cytometry analysis showed that ectopic expression of miR-195 significantly decreased the percentage of S phase cells and increased the percentage of G1/G0 phase cells. Overexpression of miR-195 dramatically reduced the anchorage-independent growth ability of glioma cells. Furthermore, overexpression of miR-195 downregulated the levels of phosphorylated retinoblastoma (pRb) and proliferating cell nuclear antigen (PCNA) in glioma cells. Conversely, inhibition of miR-195 promoted cell proliferation, increased the percentage of S phase cells, reduced the percentage of G1/G0 phase cells, enhanced anchorage-independent growth ability, upregulated the phosphorylation of pRb and PCNA in glioma cells. Moreover, we show that miR-195 inhibited glioma cell proliferation by downregulating expression of cyclin D1 and cyclin E1, via directly targeting the 3'-untranslated regions (3'-UTR) of cyclin D1 and cyclin E1 mRNA. Taken together, our results suggest that miR-195 plays an important role to inhibit the proliferation of glioma cells, and present a novel mechanism for direct miRNA-mediated suppression of cyclin D1 and cyclin E1 in glioma.Wang HuiLu YuntaoLuo LunLi WenShengLiang ChaoFengHe HaiYongBa YueyangPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 1, p e54932 (2013)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Wang Hui
Lu Yuntao
Luo Lun
Li WenSheng
Liang ChaoFeng
He HaiYong
Ba Yueyang
MicroRNA-195 inhibits the proliferation of human glioma cells by directly targeting cyclin D1 and cyclin E1.
description Glioma proliferation is a multistep process during which a sequence of genetic and epigenetic alterations randomly occur to affect the genes controlling cell proliferation, cell death and genetic stability. microRNAs are emerging as important epigenetic modulators of multiple target genes, leading to abnormal cellular signaling involving cellular proliferation in cancers.In the present study, we found that expression of miR-195 was markedly downregulated in glioma cell lines and human primary glioma tissues, compared to normal human astrocytes and matched non-tumor associated tissues. Upregulation of miR-195 dramatically reduced the proliferation of glioma cells. Flow cytometry analysis showed that ectopic expression of miR-195 significantly decreased the percentage of S phase cells and increased the percentage of G1/G0 phase cells. Overexpression of miR-195 dramatically reduced the anchorage-independent growth ability of glioma cells. Furthermore, overexpression of miR-195 downregulated the levels of phosphorylated retinoblastoma (pRb) and proliferating cell nuclear antigen (PCNA) in glioma cells. Conversely, inhibition of miR-195 promoted cell proliferation, increased the percentage of S phase cells, reduced the percentage of G1/G0 phase cells, enhanced anchorage-independent growth ability, upregulated the phosphorylation of pRb and PCNA in glioma cells. Moreover, we show that miR-195 inhibited glioma cell proliferation by downregulating expression of cyclin D1 and cyclin E1, via directly targeting the 3'-untranslated regions (3'-UTR) of cyclin D1 and cyclin E1 mRNA. Taken together, our results suggest that miR-195 plays an important role to inhibit the proliferation of glioma cells, and present a novel mechanism for direct miRNA-mediated suppression of cyclin D1 and cyclin E1 in glioma.
format article
author Wang Hui
Lu Yuntao
Luo Lun
Li WenSheng
Liang ChaoFeng
He HaiYong
Ba Yueyang
author_facet Wang Hui
Lu Yuntao
Luo Lun
Li WenSheng
Liang ChaoFeng
He HaiYong
Ba Yueyang
author_sort Wang Hui
title MicroRNA-195 inhibits the proliferation of human glioma cells by directly targeting cyclin D1 and cyclin E1.
title_short MicroRNA-195 inhibits the proliferation of human glioma cells by directly targeting cyclin D1 and cyclin E1.
title_full MicroRNA-195 inhibits the proliferation of human glioma cells by directly targeting cyclin D1 and cyclin E1.
title_fullStr MicroRNA-195 inhibits the proliferation of human glioma cells by directly targeting cyclin D1 and cyclin E1.
title_full_unstemmed MicroRNA-195 inhibits the proliferation of human glioma cells by directly targeting cyclin D1 and cyclin E1.
title_sort microrna-195 inhibits the proliferation of human glioma cells by directly targeting cyclin d1 and cyclin e1.
publisher Public Library of Science (PLoS)
publishDate 2013
url https://doaj.org/article/07902bf98a9c4831a1dc3c91ec4909f4
work_keys_str_mv AT wanghui microrna195inhibitstheproliferationofhumangliomacellsbydirectlytargetingcyclind1andcycline1
AT luyuntao microrna195inhibitstheproliferationofhumangliomacellsbydirectlytargetingcyclind1andcycline1
AT luolun microrna195inhibitstheproliferationofhumangliomacellsbydirectlytargetingcyclind1andcycline1
AT liwensheng microrna195inhibitstheproliferationofhumangliomacellsbydirectlytargetingcyclind1andcycline1
AT liangchaofeng microrna195inhibitstheproliferationofhumangliomacellsbydirectlytargetingcyclind1andcycline1
AT hehaiyong microrna195inhibitstheproliferationofhumangliomacellsbydirectlytargetingcyclind1andcycline1
AT bayueyang microrna195inhibitstheproliferationofhumangliomacellsbydirectlytargetingcyclind1andcycline1
_version_ 1718422646801039360