Publication Date:
2012-06-05
Description:
How environmental cues regulate adult stem cell and cancer cell activity through surface receptors is poorly understood. Angiopoietin-like proteins (ANGPTLs), a family of seven secreted glycoproteins, are known to support the activity of haematopoietic stem cells (HSCs) in vitro and in vivo. ANGPTLs also have important roles in lipid metabolism, angiogenesis and inflammation, but were considered 'orphan ligands' because no receptors were identified. Here we show that the immune-inhibitory receptor human leukocyte immunoglobulin-like receptor B2 (LILRB2) and its mouse orthologue paired immunoglobulin-like receptor (PIRB) are receptors for several ANGPTLs. LILRB2 and PIRB are expressed on human and mouse HSCs, respectively, and the binding of ANGPTLs to these receptors supported ex vivo expansion of HSCs. In mouse transplantation acute myeloid leukaemia models, a deficiency in intracellular signalling of PIRB resulted in increased differentiation of leukaemia cells, revealing that PIRB supports leukaemia development. Our study indicates an unexpected functional significance of classical immune-inhibitory receptors in maintenance of stemness of normal adult stem cells and in support of cancer development.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3367397/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉 〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3367397/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zheng, Junke -- Umikawa, Masato -- Cui, Changhao -- Li, Jiyuan -- Chen, Xiaoli -- Zhang, Chaozheng -- Huynh, HoangDinh -- Kang, Xunlei -- Silvany, Robert -- Wan, Xuan -- Ye, Jingxiao -- Canto, Alberto Puig -- Chen, Shu-Hsia -- Wang, Huan-You -- Ward, E Sally -- Zhang, Cheng Cheng -- K01 CA 120099/CA/NCI NIH HHS/ -- K01 CA120099/CA/NCI NIH HHS/ -- K01 CA120099-03/CA/NCI NIH HHS/ -- K01 CA120099-04/CA/NCI NIH HHS/ -- K01 CA120099-05/CA/NCI NIH HHS/ -- K01 CA120099-06/CA/NCI NIH HHS/ -- R01 CA109322/CA/NCI NIH HHS/ -- R01 CA172268/CA/NCI NIH HHS/ -- England -- Nature. 2012 May 30;485(7400):656-60. doi: 10.1038/nature11095.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Departments of Physiology and Developmental Biology, University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22660330" target="_blank"〉PubMed〈/a〉
Keywords:
Animals
;
Cell Differentiation
;
Cell Division
;
Cells, Cultured
;
Disease Models, Animal
;
Fetal Blood/cytology/metabolism
;
HEK293 Cells
;
Hematopoietic Stem Cells/*cytology/*metabolism
;
Humans
;
Leukemia/*metabolism/*pathology
;
Membrane Glycoproteins/genetics/*metabolism
;
Mice
;
Myeloid-Lymphoid Leukemia Protein
;
Receptors, Immunologic/genetics/*metabolism
Print ISSN:
0028-0836
Electronic ISSN:
1476-4687
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
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