Which of the following molecules plays a crucial role in the regulation of hematopoietic stem cell niche?

A CXCL12
B SCF
C IL-7
D TPO
CXCL12, also known as stromal cell-derived factor 1 (SDF-1), plays a crucial role in the regulation of hematopoietic stem cell niche by promoting the homing and retention of HSCs in the bone marrow.
Nature journal
Hematology Hematology: Hematopoiesis Hematology: Hematopoiesis Medium MEDICAL Confidence: high