An important question is whether the placenta is a source of, or merely a niche for, blood-forming hematopoietic stem cells. A recent PLOS Biology study suggests that the placenta does not directly give rise to hematopoietic stem cells.
Copyright: © 2025 Chen, Loh. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.