» Articles » PMID: 8799165

Thrombopoietin Rescues in Vitro Erythroid Colony Formation from Mouse Embryos Lacking the Erythropoietin Receptor

Overview
Specialty Science
Date 1996 Aug 20
PMID 8799165
Citations 41
Authors
Affiliations
Soon will be listed here.
Abstract

The interaction of the hormone erythropoietin and its receptor (EpoR) is though to be required for normal hematopoiesis. To define the role of EpoR in this process, the murine EpoR was disrupted by homologous recombination. Mice lacking the EpoR died in utero at embryonic day 11-12.5 with severe anemia. Embryonic erythropoiesis was markedly diminished, while fetal liver hematopoiesis was blocked at the proerythroblast stage. Other cell types known to express EpoR, including megakaryocytes, mast, and neural cells were morphologically normal. Reverse transcription-coupled PCR analysis of RNA from embryonic yolk sac, peripheral blood, and fetal liver demonstrated near normal transcripts levels for EKLF, thrombopoietin (Tpo), c-MPL, GATA-1, GATA-2, and alpha- and embryonic beta H1-globin but non for adult beta maj-globin. While colony-forming unit-erythroid (CFU-E) and burst-forming unit-erythroid (BFU-E) colonies were not present in cultures derived from EpoR-/- liver or yolk sac cells, hemoglobin-containing BFU-E colonies were detected in cultures treated with recombinant Tpo and Kit ligand or with Tpo and interleukin 3 and 11. Rescued BFU-E colonies expressed adult beta-globin and c-MPL and appeared morphologically normal. Thus, erythroid progenitors are formed in vivo in mice lacking the EpoR, and our studies demonstrate that a signal transmitted through the Tpo receptor c-MPL stimulates proliferation and terminal differentiation of these progenitors in vitro.

Citing Articles

Generation of Red Blood Cells from Human Pluripotent Stem Cells-An Update.

Lee S, Jung C, Oh J, Kim S, Lee S, Lee J Cells. 2023; 12(11).

PMID: 37296674 PMC: 10253210. DOI: 10.3390/cells12111554.


Role of Erythropoietin Receptor Signaling in Macrophages or Choroidal Endothelial Cells in Choroidal Neovascularization.

Ramshekar A, Bretz C, Kunz E, Cung T, Richards B, Stoddard G Biomedicines. 2022; 10(7).

PMID: 35884958 PMC: 9312702. DOI: 10.3390/biomedicines10071655.


Differential Etv2 threshold requirement for endothelial and erythropoietic development.

Sinha T, van Bueren K, Dickel D, Zlatanova I, Thomas R, Lizama C Cell Rep. 2022; 39(9):110881.

PMID: 35649376 PMC: 9203129. DOI: 10.1016/j.celrep.2022.110881.


Erythroblast island macrophages: recent discovery and future perspectives.

Li W, Wang Y, Chen L, An X Blood Sci. 2022; 1(1):61-64.

PMID: 35402789 PMC: 8974950. DOI: 10.1097/BS9.0000000000000017.


EpoR stimulates rapid cycling and larger red cells during mouse and human erythropoiesis.

Hidalgo D, Bejder J, Pop R, Gellatly K, Hwang Y, Maxwell Scalf S Nat Commun. 2021; 12(1):7334.

PMID: 34921133 PMC: 8683474. DOI: 10.1038/s41467-021-27562-4.


References
1.
Ishibashi T, Koziol J, BURSTEIN S . Human recombinant erythropoietin promotes differentiation of murine megakaryocytes in vitro. J Clin Invest. 1987; 79(1):286-9. PMC: 424045. DOI: 10.1172/JCI112796. View

2.
Dessypris E, Gleaton J, Armstrong O . Effect of human recombinant erythropoietin on human marrow megakaryocyte colony formation in vitro. Br J Haematol. 1987; 65(3):265-9. DOI: 10.1111/j.1365-2141.1987.tb06852.x. View

3.
McDONALD T, Cottrell M, Clift R, Cullen W, Lin F . High doses of recombinant erythropoietin stimulate platelet production in mice. Exp Hematol. 1987; 15(6):719-21. View

4.
Fraser J, Lin F, Berridge M . Expression of high affinity receptors for erythropoietin on human bone marrow cells and on the human erythroleukemic cell line, HEL. Exp Hematol. 1988; 16(10):836-42. View

5.
Fraser J, Tan A, Lin F, Berridge M . Expression of specific high-affinity binding sites for erythropoietin on rat and mouse megakaryocytes. Exp Hematol. 1989; 17(1):10-6. View