Which cytokine increases growth and maturation of myeloid stem cells?

Ans.

Cytokines are small chemical molecules, secreted by immune cells and play important role in cell signaling processes. Cytokine that increases growth and development of myeloid stem cells is GM-CSF (granulocyte-macrophage colony stimulating factor).

The myeloid progeniter cell is precursor for monocytes, granulocytes, platelets, and erethrocytes. The monocytes get developed into macrophages that help in digestion of pathogens. Thus, GM-CSF is released by various immune cells to increase the formation of macrophages as an immune response. Hence, the correct answer is 'GM-CSF.'