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

被引：42

作者：

Churdchomjan, Worachat ^{[2
]}

Kheolamai, Pakpoom ^{[2
]}

Manochantr, Sirikul ^{[2
]}

Tapanadechopone, Pirath ^{[2
]}

Tantrawatpan, Chairat ^{[2
]}

U-pratya, Yaowalak ^{[1
]}

Issaragrisil, Surapol ^{[1
]}

机构：

[1] Mahidol Univ, Siriraj Hosp, Fac Med, Div Hematol,Dept Med, Bangkok 10700, Thailand

[2] Thammasat Univ, Fac Med, Dept Preclin Sci, Div Cell Biol, Pathum Thani 12120, Thailand

来源：

BMC ENDOCRINE DISORDERS | 2010年 / 10卷

关键词：

VASCULAR COMPLICATIONS; OXIDATIVE STRESS; APOPTOSIS; HYPERGLYCEMIA; DYSFUNCTION; NUMBER; DIFFERENTIATION; MOBILIZATION; EXPRESSION; SURVIVAL;

D O I：

10.1186/1472-6823-10-5

中图分类号：

R5 [内科学];

学科分类号：

1002 ; 100201 ;

摘要：

Background: Endothelial 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. Methods: The 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. Results: The 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 HbA1(C). 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. Conclusion: There 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.

引用

页数：10

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