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The significance of EMAP-II after allogeneic stem cell transplantation

Shosaku Nomura1, Kazuyoshi Ishii, Michiomi Shimizu

  • 1Division of Hematology, Kishiwada City Hospital, Kishiwada, Osaka, Japan. shosaku-n@mbp.ocn.ne.jp

Transplant Immunology
|July 1, 2009
PubMed

Endothelial monocyte-activating polypeptide-II (EMAP-II) appears to play an important role in neovascularization and endothelial abnormalities. However, the role of EMAP-II in development of graft-versus-host disease (GVHD) after allogeneic SCT is poorly understood. We measured and compared the levels of EMAP-II, cytokines, and soluble factors in patients undergoing allogeneic SCT. The subjects were 23 patients who underwent allogeneic SCT. Most of the cytokines/soluble factors exhibited a significant elevation after allogeneic SCT, although Angiopoietin-1 did not change. On the other hand, the levels of these factors did not change significantly in the recipients of autologous SCT. When the relationship between EMAP-II and cytokines/soluble factors was analyzed, EMAP-II levels correlated positively with sIL-2R, sVCAM-1, sE-selectin, sFasL and EDMP. However, IL-6, Angiopoietin-1, Angiopoietin-2 and VEGF were not correlated with EMAP-II. Our results suggest that EMAP-II plays an important role in endothelial cell dysfunction related to GVHD after allogeneic SCT.

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