Chromosome number alterations cause apoptosis and cellular hypertrophy in induced pluripotent stem cell models of embryonic epiblast cells.

ABSTRACT: Chromosomal aneuploidies are a major cause of developmental failure and pregnancy loss. To investigate the possible consequences of aneuploidy on early embryonic development in vitro, we focused on primed pluripotent stem cells that are relatable to the epiblast of post-implantation embryos in vivo. We used human induced pluripotent stem cells (iPSCs) as an epiblast model and altered chromosome numbers by treating with reversine, a small-molecule inhibitor of monopolar spindle 1 kinase (MSP1) that inactivates the spindle assembly checkpoint, which has been strongly implicated in chromosome mis-segregation and aneuploidy generation. Upon reversine treatment, we obtained cells with varied chromosomal content that retained pluripotency and potential to differentiate into cells of three germ l

SUBMITTER: Martis ASA 

PROVIDER: S-EPMC11789280 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature