During past few years a considerable progress in the derivation of male germ cells from pluripotent stem cells has been made.
During past few years a considerable progress in the derivation of male germ cells from pluripotent stem cells has been made [ 22– 22].
(b) MV derivation process .
Most prognostic (n = 11/15) and all prescriptive (n = 11) CPRs have not progressed beyond the derivation stage of development.
Of particular interest, iPSC derivation with this method appeared to progress through a distinct intermediate stage.
Although still at its infancy, the field has already made significant progress toward the defined derivation and propagation of human iPSCs and iPSC-CMs (Chen et al, 2011; Burridge et al, 2014; Ribeiro et al, 2015).
Most focus on the derivation stage with only a minority progressing to validation and very few undergoing impact analysis.
The increasing number of CPRs reported in the literature have a tendency to focus on the derivation stage with only a minority progressing to validation and very few undergoing impact analysis [ 4].
Thus, it is formally possible that at the time of the hESCs derivation, some of ICM cells have already progressed to a more committed state and already initiate XCI [24], whereas other ICM cells are still at a pre-XCI stage that eventually give rise of hESCs in the "naïve" pre-XCI state.
