イワサキ マサユキ   Iwasaki Masayuki
  岩崎 正幸
   所属   研究施設 研究施設
   職種   講師
論文種別 原著
言語種別 英語
査読の有無 査読あり
表題 Hierarchical maintenance of MLL myeloid leukemia stem cells employs a transcriptional program shared with embryonic rather than adult stem cells.
掲載誌名 正式名:Cell stem cell
略  称:Cell Stem Cell
ISSNコード:18759777/18759777
掲載区分国外
巻・号・頁 4(2),pp.129-40
著者・共著者 Somervaille Tim C P, Matheny Christina J, Spencer Gary J, Iwasaki Masayuki, Rinn John L, Witten Daniela M, Chang Howard Y, Shurtleff Sheila A, Downing James R, Cleary Michael L
発行年月 2009/02
概要 The genetic programs that promote retention of self-renewing leukemia stem cells (LSCs) at the apex of cellular hierarchies in acute myeloid leukemia (AML) are not known. In a mouse model of human AML, LSCs exhibit variable frequencies that correlate with the initiating MLL oncogene and are maintained in a self-renewing state by a transcriptional subprogram more akin to that of embryonic stem cells (ESCs) than to that of adult stem cells. The transcription/chromatin regulatory factors Myb, Hmgb3, and Cbx5 are critical components of the program and suffice for Hoxa/Meis-independent immortalization of myeloid progenitors when coexpressed, establishing the cooperative and essential role of an ESC-like LSC maintenance program ancillary to the leukemia-initiating MLL/Hox/Meis program. Enriched expression of LSC maintenance and ESC-like program genes in normal myeloid progenitors and poor-prognosis human malignancies links the frequency of aberrantly self-renewing progenitor-like cancer stem cells (CSCs) to prognosis in human cancer.
DOI 10.1016/j.stem.2008.11.015
PMID 19200802