Biomedical Research

All submissions of the EM system will be redirected to Online Manuscript Submission System. Authors are requested to submit articles directly to Online Manuscript Submission System of respective journal.

Research Article - Biomedical Research (2018) Volume 29, Issue 1

The role of insulin-like growth factor binding protein-related protein 1 (IGFBP-rP1) in endometrial carcinoma

Objective: Insulin resistance is a high risk factor of Endometrial Carcinoma (EC). Insulin like Growth Factor Binding Protein-Related Protein 1 (IGFBP-rP1) could lead to insulin resistance due to its high affinity with insulin. The role of IGFBP-rP1 in EC is still unclear.

Method: The IGFBP-rP1 was overexpressed at the cellular level first, and then its effect on the growth of endometrial carcinoma cells was observed and its regulatory mechanism was investigated.

Results: Our study showed that IGFBP-rP1 upregulation decreased the proliferation of cells and the proportion of S+G2/M phase, but increased the apoptosis of human endometrial cancer cells HEC-1A. The expression of p-ERK1/2 was inhibited, while the concentration of rhIGFBP-rP1 increased. Nevertheless, IGFBP-rP1 was highly expressed in EC tissues. Further examination revealed that the DNA hypomethylation in the promoter region of IGFBP-rP1 was correlated with the high mRNA and protein expression levels of IGFBP-rP1 in EC tissues.

Conclusion: These results indicate that the DNA hypomethylation of IGFBP-rP1 can be used to predict high risk of EC. Further study may be required to confirm the predictor role of the methylation of IGFBP-rP1 in EC.

Author(s): Haixia Qin, Danxia Chu, Lijun Fan, Yanmin Li, Ya Xie, Ruixia Guo

Abstract Full Text PDF