Which of the following cell types is responsible for the production of hematopoietic growth factors, including granulocyte-colony stimulating factor (G-CSF) and macrophage-colony stimulating factor (M-CSF)?

A T lymphocytes
B B lymphocytes
C Monocytes/macrophages ✓
D Stromal cells

Explanation

Monocytes and macrophages are key producers of hematopoietic growth factors, including G-CSF and M-CSF, which regulate the proliferation and differentiation of hematopoietic progenitors.

Source

Guyton and Hall Textbook of Medical Physiology
Hematology Hematology: Hematopoiesis Hematology: Hematopoiesis Easy MEDICAL Confidence: high