학술논문

Increasing Complexity of Molecular Landscapes in Human Hematopoietic Stem and Progenitor Cells during Development and Aging.
Document Type
Article
Source
International Journal of Molecular Sciences. Apr2022, Vol. 23 Issue 7, p3675-N.PAG. 30p.
Subject
*HEMATOPOIETIC stem cells
*GESTATIONAL age
*BLOOD diseases
*EMBRYOLOGY
*EPIGENETICS
*AGING
Language
ISSN
1661-6596
Abstract
The past five decades have seen significant progress in our understanding of human hematopoiesis. This has in part been due to the unprecedented development of advanced technologies, which have allowed the identification and characterization of rare subsets of human hematopoietic stem and progenitor cells and their lineage trajectories from embryonic through to adult life. Additionally, surrogate in vitro and in vivo models, although not fully recapitulating human hematopoiesis, have spurred on these scientific advances. These approaches have heightened our knowledge of hematological disorders and diseases and have led to their improved diagnosis and therapies. Here, we review human hematopoiesis at each end of the age spectrum, during embryonic and fetal development and on aging, providing exemplars of recent progress in deciphering the increasingly complex cellular and molecular hematopoietic landscapes in health and disease. This review concludes by highlighting links between chronic inflammation and metabolic and epigenetic changes associated with aging and in the development of clonal hematopoiesis. [ABSTRACT FROM AUTHOR]