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	CD93 Marks a Non-Quiescent Human Leukemia Stem Cell Population and Is Required for Development of MLL-Rearranged Acute Myeloid Leukemia.
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	17(4),pp.412-21
著者・共著者	Iwasaki Masayuki, Liedtke Michaela, Gentles Andrew J, Cleary Michael L
担当区分	筆頭著者
発行年月	2015/10
概要	Leukemia stem cells (LSCs) are thought to share several properties with hematopoietic stem cells (HSCs), including cell-cycle quiescence and a capacity for self-renewal. These features are hypothesized to underlie leukemic initiation, progression, and relapse, and they also complicate efforts to eradicate leukemia through therapeutic targeting of LSCs without adverse effects on HSCs. Here, we show that acute myeloid leukemias (AMLs) with genomic rearrangements of the MLL gene contain a non-quiescent LSC population. Although human CD34(+)CD38(-) LSCs are generally highly quiescent, the C-type lectin CD93 is expressed on a subset of actively cycling, non-quiescent AML cells enriched for LSC activity. CD93 expression is functionally required for engraftment of primary human AML LSCs and leukemogenesis, and it regulates LSC self-renewal predominantly by silencing CDKN2B, a major tumor suppressor in AML. Thus, CD93 expression identifies a predominantly cycling, non-quiescent leukemia-initiating cell population in MLL-rearranged AML, providing opportunities for selective targeting and eradication of LSCs.
DOI	10.1016/j.stem.2015.08.008
PMID	26387756