Open AccessProtection of hematopoietic stem cells from stress-induced exhaustion and aging
Author(s) -
Shweta Singh,
Brad Jakubison,
Jonathan R. Keller
Publication year - 2020
Publication title -
current opinion in hematology/current opinion in hematology, with evaluated medline
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.295
H-Index - 97
eISSN - 1080-8213
pISSN - 1065-6251
DOI - 10.1097/moh.0000000000000586
Subject(s) - haematopoiesis , stem cell , biology , immunology , bone marrow , inflammation , hematopoietic stem cell , myeloid , chronic stress , microbiology and biotechnology , cancer research , neuroscience
Hematopoietic stem cells (HSCs) are defined by their ability to self-renew and differentiate to replenish all blood lineages throughout adult life. Under homeostasis, the majority of HSCs are quiescent, and few stem cells are cycling to sustain hematopoiesis. However, HSCs can be induced to proliferate and differentiate in response to stress signals produced during infection, inflammation, chemotherapy, radiation, bone marrow transplantation, and aging. Recent evidence suggests that acute and chronic stress impact the number and function of HSCs including their ability to repopulate and produce mature cells. This review will focus on how chronic stress affects HSC biology and methods to mitigate HSC loss during chronic hematopoietic stress.