Generation and validation of B2M knockout human iPSC line, LVPEIi001-C-2 that lacks the cell surface expression of HLA-Class I antigens.

A CRISPR/Cas9-edited B2M knockout human iPSC line, LVPEIi001-C-2, lacks cell-surface expression of MHC Class I antigens while preserving stemness and pluripotency.

• Why it matters: MHC Class I presentation is central to CD8+ T cell recognition and mismatched graft rejection, and B2M loss may reduce immunogenicity by destabilizing MHCI on the cell surface.
• What they did: The authors generated the B2M -/- iPSC line LVPEIi001-C-2 from a healthy control human iPSC line using CRISPR/Cas9 editing, then validated stemness, pluripotency, genetic identity, karyotype, and mycoplasma status.
• The result: LVPEIi001-C-2 shows loss of MHCI surface expression with maintained iPSC quality controls, enabling studies of hypoimmunogenic behavior in a human pluripotent model.

AI summary of the abstract · may contain errors · not medical advice · read the paper.