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2016 ; 166
(2
): 451-467
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Mapping the Pairwise Choices Leading from Pluripotency to Human Bone, Heart, and
Other Mesoderm Cell Types
#MMPMID27419872
Loh KM
; Chen A
; Koh PW
; Deng TZ
; Sinha R
; Tsai JM
; Barkal AA
; Shen KY
; Jain R
; Morganti RM
; Shyh-Chang N
; Fernhoff NB
; George BM
; Wernig G
; Salomon REA
; Chen Z
; Vogel H
; Epstein JA
; Kundaje A
; Talbot WS
; Beachy PA
; Ang LT
; Weissman IL
Cell
2016[Jul]; 166
(2
): 451-467
PMID27419872
show ga
Stem-cell differentiation to desired lineages requires navigating alternating
developmental paths that often lead to unwanted cell types. Hence, comprehensive
developmental roadmaps are crucial to channel stem-cell differentiation toward
desired fates. To this end, here, we map bifurcating lineage choices leading from
pluripotency to 12 human mesodermal lineages, including bone, muscle, and heart.
We defined the extrinsic signals controlling each binary lineage decision,
enabling us to logically block differentiation toward unwanted fates and rapidly
steer pluripotent stem cells toward 80%-99% pure human mesodermal lineages at
most branchpoints. This strategy enabled the generation of human bone and heart
progenitors that could engraft in respective in vivo models. Mapping stepwise
chromatin and single-cell gene expression changes in mesoderm development
uncovered somite segmentation, a previously unobservable human embryonic event
transiently marked by HOPX expression. Collectively, this roadmap enables
navigation of mesodermal development to produce transplantable human tissue
progenitors and uncover developmental processes. VIDEO ABSTRACT.