JOURNAL

Layanan journal yang disediakan oleh Perpustakaan Universitas Gunadarma

Enhancer of zeste homolog 2 regulates cell differentiation and proliferation in neuroblastoma

Judul Artikel:Enhancer of zeste homolog 2 regulates cell differentiation and proliferation in neuroblastoma
Judul Terbitan:Universa Medicina
ISSN:19073062
Bahasa:ENG
Tempat Terbit:Jakarta
Tahun:0000
Volume:Vol. 33 Issue 3 0000
Penerbit:Medical Faculty, Trisakti University
Frekuensi Penerbitan:3 x 1 tahun
Penulis:Amallia N. Setyawati=r= and Takehiko Kamijo
Abstraksi:BACKGROUND Neuroblastoma (NB) is one of the most common extracranial solid tumors occurring in infancy and childhood with highly variable outcomes. Polycomb group (PcG) proteins are epigenetic gene silencers. Enhancer of zeste homolog 2 (EZH2) is a member of the polycomb repressor complex 2 (PRC2) group, with the main function to catalyze the polycomb repressor complex by methylating lysine 9 and 27 of histone H3. This study aimed to investigate the biological functionality of EZH2 in NB. METHODS This was an experimental study with an analysis of correlation initially of the known prognostic factors ofNB patients outcomes, by comparing the expression ofv-myc avian myelocytomatosis viral oncogene neuroblastoma (MYCN) with that of EZH2, on the basis of the patients overall and relapse free survival rates. This was followed with a biological functional study to assess the role of EZH2 expression in NB. RESULTS EZH2 knockdown induces neurite extension and differentiation marker growth associated protein 43 (GAP43) in NB cells, although it does not affect cell cycle. By ectopic expression of EZH2, all-trans retinoic acid (ATRA) induced neurite extension was suppressed and GAP43 was decreased. Overall, EZH2 seems to have an important role in NB cell differentiation. Although EZH2 did not alter cell proliferation, in the soft agar colony formation assay there was a significant increase in total colony number and number of large colonies. CONCLUSION Our result clarified the potential role of EZH2 in the regulation of cell differentiation and proliferation, which subsequently may play an important role in the poor prognosis of NB patients.
Kata Kunci:Neuroblastoma; EZH2; MYCN
Lokasi:P153
Terakreditasi:belum