- Thrombopoietin expands erythroid progenitors, increases red cell production, and enhances erythroid recovery after myelosuppressive therapy. Kaushansky, K., Broudy, V.C., Grossmann, A., Humes, J., Lin, N., Ren, H.P., Bailey, M.C., Papayannopoulou, T., Forstrom, J.W., Sprugel, K.H. J. Clin. Invest. (1995)