Prostaglandin E2 Enhances Long-term Repopulation but Does Not Permanently Alter Inherent Stem Cell Competitiveness

Overview

Journal Blood

Publisher Elsevier

Specialty Hematology

Date 2013 Sep 20

PMID 24047650

Citations 18

Authors

Jonathan Hoggatt

Khalid S Mohammad

Pratibha Singh

Louis M Pelus

Affiliations

Soon will be listed here.

Abstract

Hematopoietic stem cell (HSC) transplantation is a lifesaving therapy for malignant and nonmalignant hematologic diseases and metabolic disorders. Although successful, hematopoietic transplantation can be hindered by inadequate stem cell number or poor engrafting efficiency. To overcome these deficits, we and others have previously reported the HSC-enhancing ability of a short-term exposure of prostaglandin E2 (PGE2); this strategy has now progressed to phase 1 clinical trials in double cord blood transplantation. To further analyze the short- and long-term effects of HSC exposure to PGE2, we followed the repopulation kinetics of PGE2-treated hematopoietic grafts through 5 serial transplantations and compared inherent long-term competitiveness in a HSC head-to-head secondary transplantation model. Treatment with PGE2 did not result in a long-term increase in HSC competitiveness, lineage bias, or enhanced proliferative potential, demonstrating that pulse exposure to PGE2 results in transient increases in HSC homing and engraftment potential.

Citing Articles

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