What is the role of osteoblasts in the bone marrow microenvironment during hematopoiesis?

A They produce cytokines that inhibit hematopoietic stem cell proliferation
B They regulate the expression of adhesion molecules that retain hematopoietic stem cells in the niche ✓
C They produce angiogenic factors that promote blood vessel formation
D They secrete growth factors that stimulate osteoclastogenesis

Explanation

Osteoblasts play a crucial role in regulating the bone marrow microenvironment by expressing adhesion molecules that retain hematopoietic stem cells in the niche, thereby maintaining their quiescence and self-renewal capacity.

Source

Blood journal
Hematology Hematology: Hematopoiesis Hematology: Hematopoiesis Medium MEDICAL Confidence: high