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Liu J, Liu L, Han YS, Yi J, Guo C, Zhao HQ, Ling J, Wang YH. The molecular mechanism underlying mitophagy-mediated hippocampal neuron apoptosis in diabetes-related depression. J Cell Mol Med 2021; 25:7342-7353. [PMID: 34213839 PMCID: PMC8335699 DOI: 10.1111/jcmm.16763] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 06/03/2021] [Accepted: 06/11/2021] [Indexed: 12/12/2022] Open
Abstract
Diabetes‐related depression (DD) is a major complication of diabetes mellitus. Our previous studies indicated that glutamate (Glu) and hippocampal neuron apoptosis are key signal and direct factor leading to diabetes‐related depression, respectively. However, the accurate pathogenesis remains to be unclear. We hypothesized that diabetes‐related depression might be associated with the mitophagy‐mediated hippocampal neuron apoptosis, triggered by aberrant Glu‐glutamate receptor2 (GluR2)‐Parkin pathway. To testify this hypothesis, here the rat model of DD in vivo and in vitro were both established so as to uncover the potential mechanism of DD based on mitophagy and apoptosis. We found that DD rats exhibit an elevated glutamate levels followed by monoamine neurotransmitter deficiency and depressive‐like behaviour, and DD modelling promoted autophagosome formation and caused mitochondrial impairment, eventually leading to hippocampal neuron apoptosis via aberrant Glu‐GluR2‐Parkin pathway. Further, in vitro study demonstrated that the simulated DD conditions resulted in an abnormal glutamate and monoamine neurotransmitter levels followed by autophagic flux increment, mitochondrial membrane potential reduction and mitochondrial reactive oxygen species and lactic dehydrogenase elevation. Interestingly, both GluR2 and mammalian target of rapamycin (mTOR) receptor blocker aggravated mitophagy‐induced hippocampal neuron apoptosis and abnormal expression of apoptotic protein. In contrast, both GluR2 and mTOR receptor agonist ameliorated those apoptosis in simulated DD conditions. Our findings revealed that mitophagy‐mediated hippocampal neuron apoptosis, triggered by aberrant Glu‐GluR2‐Parkin pathway, is responsible for depressive‐like behaviour and monoamine neurotransmitter deficiency in DD rats. This work provides promising molecular targets and strategy for the treatment of DD.
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Affiliation(s)
- Jian Liu
- The First Hospital, Hunan University of Chinese Medicine, Hunan Province, Changsha, China
| | - Lin Liu
- The First Hospital, Hunan University of Chinese Medicine, Hunan Province, Changsha, China
| | - Yuan-Shan Han
- The First Hospital, Hunan University of Chinese Medicine, Hunan Province, Changsha, China
| | - Jian Yi
- The First Hospital, Hunan University of Chinese Medicine, Hunan Province, Changsha, China
| | - Chun Guo
- The First Hospital, Hunan University of Chinese Medicine, Hunan Province, Changsha, China
| | - Hong-Qing Zhao
- Institute of Innovation and Applied Research, Hunan University of Chinese Medicine, Hunan Province, Changsha, China.,Key Laboratory of Chinese Material Medical Power and Innovation Drugs Established by Provincial and Ministry, Hunan University of Chinese Medicine, Hunan Province, Changsha, China
| | - Jia Ling
- Institute of Innovation and Applied Research, Hunan University of Chinese Medicine, Hunan Province, Changsha, China.,Key Laboratory of Chinese Material Medical Power and Innovation Drugs Established by Provincial and Ministry, Hunan University of Chinese Medicine, Hunan Province, Changsha, China
| | - Yu-Hong Wang
- Institute of Innovation and Applied Research, Hunan University of Chinese Medicine, Hunan Province, Changsha, China.,Key Laboratory of Chinese Material Medical Power and Innovation Drugs Established by Provincial and Ministry, Hunan University of Chinese Medicine, Hunan Province, Changsha, China
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Activation of Hippocampal IR/IRS-1 Signaling Contributes to the Treatment with Zuogui Jiangtang Jieyu Decoction on the Diabetes-Related Depression. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:6688723. [PMID: 34149862 PMCID: PMC8195672 DOI: 10.1155/2021/6688723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Accepted: 05/25/2021] [Indexed: 11/17/2022]
Abstract
Background Zuogui Jiangtang Jieyu decoction (ZJJ) is mainly used for the treatment of diabetes-related depression in current clinical applications and research. This study aims to investigate whether the brain IR/IRS-1 signaling pathway is involved in the therapeutic effect of ZJJ on depression-like behavior in diabetic rats. Methods Sprague–Dawley rats were fed with high-fat diet and subjected to streptozotocin injection to establish the diabetes animal model. After treatment with different doses of ZJJ (20.530 g/kg or 10.265 g/kg) for 4 weeks, the blood glucose level and peripheral insulin resistance were measured. The forced-swimming test (FST) and Morris water maze test (MWMT) were applied for the mood and cognitive function assessment. Then, the Western blot method was used to analyze the protein levels of insulin receptor (IR), insulin receptor substrate-1 (IRS-1), phosphatidylonositol-3-kinase (PI3K), and protein kinase B (PKB, also as known as AKT) in the hippocampus of diabetic rats. Meanwhile, the immunofluorescence method was performed to analyze the above proteins' expression in the neuron and astrocyte. At last, the levels of glycogen, lactate, and ATP were tested by the ELISA method. Additionally, the insulin-sensitive glucose transporter 4 (GLUT4) and the lactate transporter monocarboxylate transporter 4 (MCT4) were analyzed by the Western blot method. Results ZJJ administration significantly decreased the level of blood glucose and improved the peripheral insulin resistance in diabetic rats. Besides, ZJJ attenuated the depression-like behavior and the cognitive dysfunction in rats with diabetes. Furthermore, we found the upregulation of protein expression of phospho-IR, phospho-IRS-1, phospho-PI3K, and phospho-AKT in the hippocampus of diabetic rats after being treated with ZJJ. Moreover, the above proteins are increased not only in the neuron but also in the astrocyte after ZJJ administration. In addition, ZJJ increased the content of ATP, glycogen, and lactate, as well as the expression of GLUT4 and MCT4 in the hippocampus of diabetic rats. Conclusions These findings suggest that ZJJ improves the depression-like behavior of diabetic rats by activating the IR/IRS-1 signaling pathway in both hippocampal neuron and astrocyte. And the brain IR/IRS-1 signaling pathway plays an important role in astrocyte-neuron metabolic coupling, providing a potential mechanism by which the IR/IRS-1 signaling pathway may contribute to the treatment of ZJJ on diabetes-related depression.
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Lu Y, An T, Tian H, Gao X, Wang F, Wang S, Ma K. Depression with Comorbid Diabetes: What Evidence Exists for Treatments Using Traditional Chinese Medicine and Natural Products? Front Pharmacol 2021; 11:596362. [PMID: 33568996 PMCID: PMC7868339 DOI: 10.3389/fphar.2020.596362] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 12/14/2020] [Indexed: 12/13/2022] Open
Abstract
Comorbidity between diabetes mellitus (DM) and depression, two chronic and devastating diseases spreading worldwide, has been confirmed by a large body of epidemiological and clinical studies. Due to the bidirectional relationship between DM and depression, this comorbidity leads to poorer outcomes in both conditions. Given the adverse effects and limited effectiveness of the existing therapies for depression associated with diabetes, the development of novel therapeutic drugs with more potency and fewer side effects is still the most important goal. Hence, many researchers have made great efforts to investigate the potential usefulness of traditional Chinese medicine (TCM) and natural products, including natural extracts and purified compounds, in the treatment of comorbid depression in diabetes. Here, we reviewed the related literature on TCM and natural products that can remedy the comorbidity of diabetes and depression and presented them on the basis of their mechanism of action, focusing on shared risk factors, including insulin resistance, oxidative stress and inflammation, and nervous disturbances. In short, this review suggests that TCM and natural products could expand the therapeutic alternatives to ameliorate the association between DM and depressive disorders.
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Affiliation(s)
- Yanting Lu
- Shandong Co-Innovation Center of Classic TCM Formula, Shandong University of Traditional Chinese Medicine, Jinan, China.,College of TCM, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Tao An
- School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Hu Tian
- College of TCM, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Xueqin Gao
- College of TCM, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Furong Wang
- College of TCM, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Shijun Wang
- Shandong Co-Innovation Center of Classic TCM Formula, Shandong University of Traditional Chinese Medicine, Jinan, China.,College of TCM, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Ke Ma
- Shandong Co-Innovation Center of Classic TCM Formula, Shandong University of Traditional Chinese Medicine, Jinan, China.,College of TCM, Shandong University of Traditional Chinese Medicine, Jinan, China
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Liu J, Han YS, Liu L, Tang L, Yang H, Meng P, Zhao HQ, Wang YH. Abnormal Glu/mGluR 2/3/PI3K pathway in the hippocampal neurovascular unit leads to diabetes-related depression. Neural Regen Res 2021; 16:727-733. [PMID: 33063735 PMCID: PMC8067948 DOI: 10.4103/1673-5374.296418] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Our previous studies have shown that glutamate and hippocampal neuron apoptosis are key signals and direct factors associated with diabetes-related depression, and structural and functional damage to the hippocampal neurovascular unit has been associated with diabetes-related depression. However, the underlying mechanism remains unclear. We hypothesized that diabetes-related depression might be associated with the glutamate (Glu)/metabotropic glutamate receptor2/3 (mGluR2/3)/phosphoinositide 3-kinase (PI3K) pathway, activated by glucocorticoid receptors in the hippocampal neurovascular unit. To test this hypothesis, rat hippocampal neurovascular unit models, containing hippocampal neurons, astrocytes, and brain microvascular endothelial cells, were treated with 150 mM glucose and 200 µM corticosterone, to induce diabetes-related depression. Our results showed that under conditions of diabetes complicated by depression, hippocampal neurovascular units were damaged, leading to decreased barrier function; elevated Glu levels; upregulated glucocorticoid receptor, vesicular glutamate transporter 3 (VGLUT-3), and metabotropic glutamate receptor 2/3 (mGluR2/3) expression; downregulated excitatory amino acid transporter 1 (EAAT-1) expression; and alteration of the balance of key proteins associated with the extracellular signal-regulated kinase (ERK)/glial cell-derived neurotrophic factor (GDNF)/PI3K signaling pathway. Moreover, the viability of neurons was dramatically reduced in the model of diabetes-related depression, and neuronal apoptosis, and caspase-3 and caspase-9 expression levels, were increased. Our results suggest that the Glu/mGluR2/3/PI3K pathway, induced by glucocorticoid receptor activation in the hippocampal neurovascular unit, may be associated with diabetes-related depression. This study was approved by the Laboratory Animal Ethics Committee of The First Hospital of Hunan University of Chinese Medicine, China (approval No. HN-ZYFY-2019-11-12) on November 12, 2019.
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Affiliation(s)
- Jian Liu
- The First Hospital, Hunan University of Chinese Medicine, Changsha, Hunan Province, China
| | - Yuan-Shan Han
- The First Hospital, Hunan University of Chinese Medicine, Changsha, Hunan Province, China
| | - Lin Liu
- The First Hospital, Hunan University of Chinese Medicine, Changsha, Hunan Province, China
| | - Lin Tang
- The First Hospital, Hunan University of Chinese Medicine, Changsha, Hunan Province, China
| | - Hui Yang
- The First Hospital, Hunan University of Chinese Medicine, Changsha, Hunan Province, China
| | - Pan Meng
- Institute of Innovation and Applied Research; Key Laboratory of Chinese Material Medical Power and Innovation Drugs Established by Human Provincial Government and Ministry, Hunan University of Chinese Medicine; The Domestic First Class Construction Discipline of Chinese Medicine in Hunan University of Chinese Medicine, Changsha, Hunan Province, China
| | - Hong-Qing Zhao
- Key Laboratory of Chinese Material Medical Power and Innovation Drugs Established by Human Provincial Government and Ministry; The Domestic First Class Construction Discipline of Chinese Medicine in Hunan University of Chinese Medicine, Changsha, Hunan Province, China
| | - Yu-Hong Wang
- Institute of Innovation and Applied Research; Key Laboratory of Chinese Material Medical Power and Innovation Drugs Established by Human Provincial Government and Ministry, Hunan University of Chinese Medicine; The Domestic First Class Construction Discipline of Chinese Medicine in Hunan University of Chinese Medicine, Changsha, Hunan Province, China
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Xu YXZ, Xi S, Qian X. Evaluating Traditional Chinese Medicine and Herbal Products for the Treatment of Gestational Diabetes Mellitus. J Diabetes Res 2019; 2019:9182595. [PMID: 31886289 PMCID: PMC6915007 DOI: 10.1155/2019/9182595] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 11/19/2019] [Indexed: 12/17/2022] Open
Abstract
Gestational diabetes mellitus is the most common metabolic disorder during pregnancy with health consequences for both lives during and after pregnancy. Studies found that many pregnant women turn to complementary and alternative medicine for health maintenance or symptom relief, such as herbal medicine and acupuncture from traditional Chinese medicine. With the growing popularity of traditional Chinese medicine, we conducted a systemic search in PubMed, Web of Science, and Embase databases on research studies that investigated traditional Chinese medicine during pregnancy. The resultant hits were further searched in relation to all diabetes mellitus. In total, we found three major herbal medicine/herbal products that were associated with glycemic control in gestational diabetes, including Zuo Gui Wan, red raspberry leaves, and Orthosiphon stamineus. We further reviewed them and their relatives in relation to type 2 diabetes mellitus and found more evidence of metabolic benefits. None of the herbal medicine and products examined reported toxicity in the experimental models. Overall, treatments of gestational diabetes by western or alternative interventions are grossly understudied. It is critical to have a standardized protocol when evaluating efficacy of herbal medicine and produce quality results for women and their health-care providers to make informed treatment decisions.
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Affiliation(s)
- Yang Xin Zi Xu
- Physiology and Pathophysiology, University of Manitoba, Winnipeg, Canada
| | - Shengyan Xi
- Department of Traditional Chinese Medicine, School of Medicine, Xiamen University, Xiamen, Fujian Province, China
| | - Xiaoyan Qian
- Department of Traditional Chinese Medicine, School of Medicine, Xiamen University, Xiamen, Fujian Province, China
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Bai T, Feng Q, Zhu S, Niu X, Wang Y, Xu K. Zuogui Wan rescues the high-glucose-induced damaging effects on early embryo development. Altern Ther Health Med 2016; 16:163. [PMID: 27251571 PMCID: PMC4890529 DOI: 10.1186/s12906-016-1151-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Accepted: 05/27/2016] [Indexed: 01/06/2023]
Abstract
Background High concentration of glucose in culture medium affects the developmental process and the quality of the pre-implantation embryo. This study examined the effects of Zuogui Wan (ZGW) supplementation on early embryo development cultured in high-glucose medium. Methods Embryos were cultured in high-glucose medium with or without ZGW supplementation. Developmental rate and competence was evaluated by cleavage rate, blastocyst rate, and blastocyst total cell number, reactive oxygen species (ROS) level, glutathione (GSH) concentration, and metabolome were also measured to determine the effect of ZGW on embryo development at the cellular level. Results Compared with the vehicle group, supplementation of 0.01 % (v/v) ZGW to high-glucose medium significantly increased cleavage rate (80.1 ± 1.0 % vs 72.1 ± 1.3 %), blastocyst rate (50.5 ± 1.0 % vs 41.3 ± 1.7 %), and blastocyst total cell number (63.2 ± 2.2 vs 57.2 ± 1.6). ROS level was lower and GSH concentration in blastocysts was higher in ZGW-treated group. Metabolomic analysis found that the ratio of glucose to succinic acid and glucose to fumaric acid were lower in the ZGW-treated group . Conclusions Developmental rates of zygotes in high-glucose culture medium were significantly lower than those in regular culture medium. ZGW supplementation significantly improved embryo development and quality in high-glucose medium. Supplementing ZGW in high-glucose medium also significantly increased total cell number and GSH concentration but decreased ROS level in blastocysts likely by modifying metabolic profile during embryo development. Together, these data suggest that supplementation of ZGW rescues high-glucose-induced detrimental effects on pre-implantation embryo development.
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