Role of c-Kit and erythropoietin receptor in erythropoiesis

Veerendra Munugalavadla, Reuben Kapur

Research output: Contribution to journalArticle

91 Citations (Scopus)

Abstract

Erythropoiesis is regulated by a number of growth factors, among which stem cell factor (SCF) and erythropoietin (Epo) play a non-redundant function. Viable mice with mutations in the SCF gene (encoded by the Steel (Sl) locus), or its receptor gene c-Kit (encoded by the White spotting (W) locus) develop a hypoplastic macrocytic anemia. Mutants of W or Sl that are completely devoid of c-Kit or SCF expression die in utero of anemia between days 14 and 16 of gestation and contain reduced numbers of erythroid progenitors in the fetal liver. Likewise, Epo and Epo receptor (Epo-R)-deficient mice die in utero due to a marked reduction in the number of committed fetal liver derived erythroid progenitors. Thus, committed erythroid progenitors require both c-Kit and Epo-R signal transduction pathways for their survival, proliferation and differentiation. In vitro, Epo alone is capable of generating mature erythroid progenitors; however, a combined treatment of Epo and SCF results in synergistic proliferation and expansion of developing erythroid progenitors. This review summarizes recent advances made towards understanding the signaling mechanisms by which Epo-R and c-Kit regulate growth, survival, and differentiation of erythroid progenitors alone and cooperatively.

Original languageEnglish
Pages (from-to)63-75
Number of pages13
JournalCritical Reviews in Oncology/Hematology
Volume54
Issue number1
DOIs
StatePublished - Apr 2005

Fingerprint

Proto-Oncogene Proteins c-kit
Erythropoietin Receptors
Erythropoiesis
Erythropoietin
Stem Cell Factor
Steel
Macrocytic Anemia
Metrorrhagia
Aplastic Anemia
Liver
Genes
Anemia
Signal Transduction
Intercellular Signaling Peptides and Proteins
Pregnancy
Mutation
Growth

Keywords

  • c-Kit
  • Epo
  • Epo-R
  • SCF
  • Signal transduction

ASJC Scopus subject areas

  • Cancer Research
  • Hematology
  • Oncology

Cite this

Role of c-Kit and erythropoietin receptor in erythropoiesis. / Munugalavadla, Veerendra; Kapur, Reuben.

In: Critical Reviews in Oncology/Hematology, Vol. 54, No. 1, 04.2005, p. 63-75.

Research output: Contribution to journalArticle

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