Relationships of Non-coding RNA with diabetes and depression

Tian An,Yan-Xiang Wu,Yun-Tao Zhou,Bo-Han Lv,Meng-Hua Ma,Guang-Jian Jiang,Jun-Hua Meng,Qing Liu,Yue Ma,Juan Lian,Zhi-Yong Zhang,Si-Hua Gao,Jing Zhang

doi:10.1038/s41598-019-47077-9

Abstract

In order to study the molecular differences between type 2 diabetes mellitus (T2DM) and T2DM with depression (DD), we aimed to screen the differential expression of lncRNA, mRNA, and circRNA in the blood of patients with T2DM and DD. Based on the self-rating depression scale (SDS), patient health questionnaire 9 (PHQ9), blood glucose and HbA1c, we divided the patients into T2DM and DD group. Peripheral blood was collected from the two groups of patients to perform lncRNA, mRNA, and circRNA expression profiling and screening DD-related specific molecules. Subsequently, bioinformatics analysis was performed to investigate the functions of differentially expressed genes (DEgenes). Finally, RT-PCR and lncRNA-mRNA regulatory network was performed to verify the expressions of lncRNAs and mRNAs related to the occurrence and development of DD. 28 lncRNAs, 107 circRNAs, and 89 mRNAs were identified in DD differential expression profiles. GO and pathway analysis found that 20 biological process (BP) related entities and 20 pathways associated with DD. The analysis shows that the genes that are differentially expressed in the DD group involved in the development of the neuropsychiatric system, immunity, and inflammation. Then, we screening for the important DElncRNA and mRNA associated with DD were verified by RT-PCR experiments and the results of RT-PCR were consistent with the sequencing results. LncRNA, circRNA, and mRNA differential expression profiles exist in DD patients compared with T2DM. The lncRNA-mRNA regulatory network analysis confirmed the crosslinking and complex regulation patterns of lncRNA and mRNA expression and verified the authenticity of the regulatory network.

Highlights

Type 2 diabetes mellitus (T2DM) and depression have become chronic psychosomatic diseases that pose the most serious threat to human health following cancer, cardiovascular and cerebrovascular diseases and AIDS
Baseline comparisons were made between this 10 subjects, including gender, age, self-rating depression scale (SDS), and patient health questionnaire 9 (PHQ9) scores (Table 1 and Supplementary Table 1)
There were no significant differences between the groups in terms of age

Summary

Introduction

Type 2 diabetes mellitus (T2DM) and depression have become chronic psychosomatic diseases that pose the most serious threat to human health following cancer, cardiovascular and cerebrovascular diseases and AIDS. Depression increases the development of T2DM and the subsequent risk of complications such as hyperglycemia, insulin resistance, microvascular and macrovascular; in contrast, T2DM increases the risk of depression in the patient and may lead to more severe depression[3,4]. This association reflects a common etiology consisting of complex bidirectional interactions between multiple variables, including autonomic disorders, neurohormonal disorders, weight gain, inflammation, and hippocampal structural changes[5]. We studied the nature of DD from LncRNA, mRNA and mRNA, and explored the pathological mechanism of DD from the transcriptomic level

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