Comparison of endothelial progenitor cell function in type 2 diabetes with good and poor glycemic control

BMC Endocrine Disorders

Research Article

Sirikul Manochantr¹  Worachat Churdchomjan¹  Pakpoom Kheolamai¹  Chairat Tantrawatpan¹  Pirath Tapanadechopone¹  Yaowalak U-pratya²  Surapol Issaragrisil² 

[1] Division of Cell Biology, Department of Preclinical Sciences, Faculty of Medicine, Thammasat University, 12120, Pathumthani, Thailand;Division of Hematology, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, 10700, Bangkok, Thailand;

关键词: Glycemic Control;    Endothelial Progenitor Cell;    Poor Glycemic Control;    Fast Blood Sugar;    Good Glycemic Control;   

DOI  :  10.1186/1472-6823-10-5

 received in 2009-07-28, accepted in 2010-04-07,  发布年份 2010

来源: Springer

【 摘 要 】

BackgroundEndothelial progenitor cells (EPCs) play an important role in vascular repair and a decrease in the number of EPCs is observed in type 2 diabetes. However, there is no report on the change of EPCs after glycemic control. This study therefore aimed to investigate the EPC number and function in patients with good and poor glycemic control.MethodsThe number of EPCs was studied using flow cytometry by co-expression of CD34 and VEGFR2. The EPCs were cultured and characterized by the expression of UEA-I, CD34, VEGFR2, vWF and Dil-Ac-LDL engulfment, as well as the ability to form capillary-like structures. An in vitro study on the effect of hyperglycemia on the proliferation and viability of the cultured EPCs was also performed.ResultsThe number of EPCs in type 2 diabetes was significantly decreased compared with healthy controls and there was an inverse correlation between the EPC numbers and plasma glucose, as well as HbA1C. The number and function of EPCs in patients with good glycemic control were recovered compared with those with poor glycemic control. When glucose was supplemented in the culture in vitro, there was a negative effect on the proliferation and viability of EPCs, in a dose-dependent manner, whereas the enhancement of apoptosis was observed.ConclusionThere was EPC dysfunction in type 2 diabetes which might be improved by strict glycemic control. However, the circulating EPC number and proliferative function in patients with good glycemic control did not reach the level in healthy controls.

【 授权许可】

Unknown   
© Churdchomjan et al; licensee BioMed Central Ltd. 2010. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.