Proteinaceous compositions having an activity on erythropoiesis

摘要

The invention relates to proteinaceous compositions capable of modulating the development of erythroid progenitors such as obtainable from a biological material selected from bone marrow culture supernatants, or kidney cell lysates by contacting said biological material with a specific ligand for the proteinaceous compositions, desorbing said proteinaceous compositions and recovering same by elution. Said compositions are useful in therapeutics.