Endocrinol Metab.  2017 Sep;32(3):383-388. 10.3803/EnM.2017.32.3.383.

The Role of Circulating Slit2, the One of the Newly Batokines, in Human Diabetes Mellitus

Affiliations
  • 1Department of Endocrinology and Metabolism, Chungnam National University School of Medicine, Daejeon, Korea. bonjeong@cnu.ac.kr
  • 2Department of Medical Science, Chungnam National University School of Medicine, Daejeon, Korea.

Abstract

BACKGROUND
Slit2 is a new secreted protein from adipose tissue that improves glucose hemostasis in mice; however, there is no study about the serum levels and precise role of Slit2 in human. The aim of this study is to explore the serum level of Slit2 in human, and to identify the role of Slit2 in diabetes mellitus (DM).
METHODS
The participants of this study consist of 38 subjects with newly diagnosed DM, and 75 healthy subjects as a control group. Serum Slit2 levels were measured using an enzyme-linked immunosorbent assay. Relationship between circulating Slit2 and diabetic related factors was investigated in diabetic group compared with non-diabetic group. Additionally, the correlations between the serum level of Slit2 and diverse metabolic parameters were analyzed.
RESULTS
Circulating Slit2 level was more decreased in diabetic group than in control group, but there was no significant difference statistically. Interestingly, serum levels of Slit2 were significantly negatively correlated to the serum concentrations of fasting glucose (coefficient r=–0.246, P=0.008), the serum concentrations of postprandial glucose (coefficient r=–0.233, P=0.017), and glycosylated hemoglobin (HbA1c; coefficient r=–0.357, P<0.001).
CONCLUSION
From our study, the first report of circulating Slit2 levels in human, circulating Slit2 level significantly negatively correlated with serum glucose and HbA1c. Our results suggest that the circulating Slit2 may play a role in maintainence of glucose homeostasis in human, even though exact contribution and mechanism are not yet known.

Keyword

Slit2; Batokine; Adipose tissue, brown; Adipokines; Diabetes mellitus
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