L3MBTL1 deficiency directs the differentiation of human embryonic stem cells toward trophectoderm Journal Article

   

Authors:	Hoya-Arias, R. ; Tomishima, M.; Perna, F.; Voza, F.; Nimer, S. D.
Article Title:	L3MBTL1 deficiency directs the differentiation of human embryonic stem cells toward trophectoderm
Abstract:	Human embryonic stem cells (hESCs) can be used to study the early events in human development and, hopefully, to understand how to differentiate human pluripotent cells for clinical use. To define how L3MBTL1, a chromatin-associated polycomb group protein with transcriptional repressive activities, regulates early events in embryonic cell differentiation, we created hESC lines that constitutively express shRNAs directed against L3MBTL1. The L3MBTL1 knockdown (KD) hESCs maintained normal morphology, proliferation, cell cycle kinetics, cell surface markers, and karyotype after 40 passages. However, under conditions that promote spontaneous differentiation, the L3MBTL1 KD cells differentiated into a relatively homogeneous population of large, flat trophoblast-like cells, unlike the multilineage differentiation seen with the control cells. The differentiated L3MBTL1 KD cells expressed numerous trophoblast markers and secreted placental hormones. Although the L3MBTL1 KD cells could be induced to differentiate into various embryonic lineages, they adopted an exclusive trophoblast fate during spontaneous differentiation. Our data demonstrate that depletion of L3MBTL1 does not affect hESC self-renewal, rather it enhances differentiation toward extra-embryonic trophoblast tissues.
Keywords:	genetics; cell proliferation; nonhistone protein; cytology; metabolism; chromosomal proteins, non-histone; gene expression; embryonic stem cell; green fluorescent protein; cell line; rna interference; cell differentiation; drug effect; physiology; recombinant proteins; recombinant protein; embryonic stem cells; green fluorescent proteins; fluorescence microscopy; microscopy, fluorescence; gene silencing; cell shape; gene knockdown techniques; trophoblast; trophoblasts; antigens, differentiation; differentiation antigen; coculture; coculture techniques; ectoderm; bone morphogenetic protein 4; bmp4 protein, human; l3mbtl1 protein, human
Journal Title:	Stem Cells and Development
Volume:	20
Issue:	11
ISSN:	1547-3287
Publisher:	Mary Ann Liebert, Inc
Date Published:	2011-11-01
Start Page:	1889
End Page:	1900
Language:	English
ACCESSION:	WOS:000296587400006
DOI:	10.1089/scd.2010.0437
PROVIDER:	wos
PMCID:	PMC3202892
PUBMED:	21341991
Notes:	--- - Article - "Source: Wos"

https://synapse.mskcc.org/synapse/works/has_related_data_chk/16046