Inflammation Regulates Haematopoietic Stem Cells and Their Niche

February 25 2022

Lab: Hitoshi Takizawa

Paper information

Nicole Pui-Yu HO, Hitoshi TAKIZAWA

Title
Inflammation Regulates Haematopoietic Stem Cells and Their Niche

International Journal of Molecular Sciences. 2022 Jan 20; Volume 23(3), pp. 1125.
doi: https://doi.org/10.3390/ijms23031125
URL: https://pubmed.ncbi.nlm.nih.gov/35163048/  

Abstract

Haematopoietic stem cells (HSCs) reside in the bone marrow and are supported by the specialised microenvironment, a niche to maintain HSC quiescence. To deal with haematopoietic equilibrium disrupted during inflammation, HSCs are activated from quiescence directly and indirectly to generate more mature immune cells, especially the myeloid lineage cells. In the process of proliferation and differentiation, HSCs gradually lose their self-renewal potential. The extensive inflammation might cause HSC exhaustion/senescence and malignant transformation. Here, we summarise the current understanding of how HSC functions are maintained, damaged, or exhausted during acute, prolonged, and pathological inflammatory conditions. We also highlight the inflammation-altered HSC niche and its impact on escalating the insults on HSCs.