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. 2013 Dec;34(38):9789-802.
doi: 10.1016/j.biomaterials.2013.08.084. Epub 2013 Sep 23.

BMP10 as a potent inducer of trophoblast differentiation in human embryonic and induced pluripotent stem cells

Björn Lichtner  1 , Petra Knaus, Hans Lehrach, James Adjaye
Affiliations

BMP10 as a potent inducer of trophoblast differentiation in human embryonic and induced pluripotent stem cells

Björn Lichtner et al. Biomaterials. 2013 Dec.

Abstract

Bone morphogenetic proteins (BMPs) are known to induce diverse differentiation fates in human embryonic stem cells (hESCs). In the present study, we compared the potency at which BMP5, BMP10 and BMP13, which are members of distinct BMP subgroups due to differences in sequential and structural homology, induce differentiation in hESCs and human induced pluripotent stem cells (hiPSCs). We observed, in agreement with previous BMP4 model studies, that all ligands induced differentiation to the trophoblast lineage in the absence of bFGF. However, distinct BMPs exerted differences in the kinetics of induced differentiation, with BMP10 being the most potent. hiPSCs and hESCs shared comparable expression patterns of BMP type-I and -II receptor subtypes, which might explain conserved properties with respect to ligand potency and activation of SMAD-dependent (via SMAD1/5/8) and -independent (via MAPK p38) signal transduction pathways. The tested BMPs had distinct and also conserved target genes such as CDX2, DLX3, DLX5, GATA2, GATA3, HAND1, ID2, MSX2 and TFAP2A, known to be associated with the emergence of trophoblast cells. hESCs induced expression of the BMP antagonist NOGGIN as a protection mechanism to constrict extensive BMP action. Unlike BMP4, BMP10 has been shown to be resistant to NOGGIN-induced inhibition which in part might explain its potency. BMPs, in particular BMP4, are commonly used cytokines in differentiation protocols to generate diverse mesoderm- and endoderm-derivates from human pluripotent stem cells. Our study has identified BMP10, a cardiac-specific protein, as a superior alternative to BMP4 for inducing trophoblast differentiation in human pluripotent stem cells.

Keywords: BMP4, BMP5, BMP6, BMP7, BMP10, BMP13; Bone morphogenetic proteins (BMPs); Embryonic stem cells; Induced pluripotent stem cells; Signal transduction; Trophoblast differentiation.

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