Umezawa · Placenta 2019 · narrative review · n=?

Amnion-derived cells as a reliable resource for next-generation regenerative medicine.

Cited 42 times in the scientific literature.

Level 5 - mechanism / opinion, no new human data

Narrative review of bench and animal research without human trial data

PubMed 31272680 · doi:10.1016/j.placenta.2019.06.381 · record verified 2026-08-30

What was done

This narrative review synthesized the properties of placenta- and amnion-derived cell types (epithelial, mesenchymal, and endothelial), their transdifferentiation capabilities, methods for generating amnion-derived induced pluripotent stem cells (AM-iPSCs), and their applications in preclinical disease models based on the literature.

What was found

The abstract reports no numerical data. It notes that amnion-derived cells undergo chondrogenesis and cardiomyogenesis upon transcription factor introduction, that AM-iPSCs display multipotency and stable immortality with distinct gene expression profiles, and that preclinical proof of concept was established in a mouse model of muscular dystrophy.

Why it matters

Amniotic membrane provides a readily accessible, non-invasive source of diverse allogeneic cells that may overcome logistical hurdles in cell-based regenerative medicine.

Limits

The abstract contains no quantitative effect sizes, systematic search methodology, or human clinical trial data. Evidence is restricted to in vitro and mouse models, without addressing potential immunogenicity, oncogenicity, or long-term engraftment challenges in humans.

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