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Al-Taie A, Arueyingho O, Khoshnaw J, Hafeez A. Clinical outcomes of multidimensional association of type 2 diabetes mellitus, COVID-19 and sarcopenia: an algorithm and scoping systematic evaluation. Arch Physiol Biochem 2024; 130:342-360. [PMID: 35704400 DOI: 10.1080/13813455.2022.2086265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 05/25/2022] [Accepted: 05/31/2022] [Indexed: 01/08/2023]
Abstract
BACKGROUND The aim of this study was to provide a scoping and comprehensive review for the clinical outcomes from the cross-link of Type 2 diabetes mellitus (T2DM), COVID-19, and sarcopenia. METHODS By using PRISMA guidelines and searching through different databases that could provide findings of evidence on the association of T2DM, COVID-19, and sarcopenia. RESULTS Thirty-three studies reported a relationship between sarcopenia with T2DM, twenty-one studies reported the prognosis COVID-19 in patients with T2DM, ten studies reported the prognosis of COVID-19 in patients with sarcopenia, five studies discussed the outcomes of sarcopenia in patients with COVID-19, and one study reported sarcopenia outcomes in the presence of T2DM and COVID-19. CONCLUSION There is an obvious multidimensional relationship between T2DM, COVID-19 and sarcopenia which can cause prejudicial effects, poor prognosis, prolonged hospitalisation, lowered quality of life and a higher mortality rate during the current COVID-19 pandemic.
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Affiliation(s)
- Anmar Al-Taie
- Clinical Pharmacy Department, Faculty of Pharmacy, Istinye University, Istanbul, Turkey
| | - Oritsetimeyin Arueyingho
- EPSRC Centre for Doctoral Training in Digital Health and Care, University of Bristol, Bristol, UK
| | - Jalal Khoshnaw
- Pharmacy Department, Faculty of Pharmacy, Girne American University, Mersin, Turkey
| | - Abdul Hafeez
- Department of Pharmaceutics, Glocal School of Pharmacy, Glocal University, Saharanpur, Uttar Pradesh, India
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Wang Y, Yang Z, Tang H, Sun X, Qu J, Lu S, Rao B. Faecal microbiota transplantation is better than probiotics for tissue regeneration of type 2 diabetes mellitus injuries in mice. Arch Physiol Biochem 2024; 130:333-341. [PMID: 35675471 DOI: 10.1080/13813455.2022.2080229] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 05/10/2022] [Accepted: 05/11/2022] [Indexed: 12/25/2022]
Abstract
CONTEXT Western diet and unhealthy lifestyle have contributed to the continued growth of type 2 diabetes mellitus (T2DM). T2DM is associated with dysbacteriosis, and studies have found that altering the gut microbiota has a positive effect on treatment. OBJECTIVE In addition to hyperglycaemia, T2DM often causes damage to multiple organs. However, there are few studies on organ damage from faecal microbiota transplantation (FMT). MATERIALS AND METHODS T2DM mice were divided into four groups and were given phosphate buffered saline (PBS) (T2DM group), FMT (FMT group), Lactobacillus (LAB group), and Bifidobacterium (BIO group) by gavage for six weeks, respectively. Mice on a normal diet (control group) were gavaged with PBS for six weeks. RESULTS After gavage treatment, FMT, LAB, and BIO groups were similar in lowering glucose, endotoxemia was slightly reduced, and the colonic mucus layer and liver lobules developed towards normal tissue. Surprisingly, we found that the FMT group had unique effects on islet cell regeneration, increased functional β cells, and insulin sensitivity. DISCUSSION AND CONCLUSION Lactobacillus has the best glucose-lowering effect, but FMT has obvious advantages in β-cell regeneration, which provides new treatment ideas for tissue damage caused by T2DM.
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Affiliation(s)
- Yuying Wang
- Department of Gastroenterology, Fujian Medical University Union Hospital, Fuzhou, China
- Department of Gastrointestinal Surgery, Capital Medical University Affiliated Beijing Shijitan Hospital, Beijing, China
| | - Zhenpeng Yang
- Department of Gastrointestinal Surgery, Capital Medical University Affiliated Beijing Shijitan Hospital, Beijing, China
| | - Huazhen Tang
- Department of Gastrointestinal Surgery, Capital Medical University Affiliated Beijing Shijitan Hospital, Beijing, China
| | - Xibo Sun
- Department of Gastrointestinal Surgery, Capital Medical University Affiliated Beijing Shijitan Hospital, Beijing, China
| | - Jinxiu Qu
- Department of Gastrointestinal Surgery, Capital Medical University Affiliated Beijing Shijitan Hospital, Beijing, China
| | - Shuai Lu
- Department of Gastrointestinal Surgery, Capital Medical University Affiliated Beijing Shijitan Hospital, Beijing, China
| | - Benqiang Rao
- Department of Gastrointestinal Surgery, Capital Medical University Affiliated Beijing Shijitan Hospital, Beijing, China
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Wang Y, Shi Y, Peng X, Li T, Liang C, Wang W, Zhou M, Yang J, Cheng J, Zhang Z, Hou L. Biochemotaxis-Oriented Engineering Bacteria Expressing GLP-1 Enhance Diabetes Therapy by Regulating the Balance of Immune. Adv Healthc Mater 2024; 13:e2303958. [PMID: 38253022 DOI: 10.1002/adhm.202303958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Indexed: 01/24/2024]
Abstract
Glucagon like peptide-1 (GLP-1) is an effective hypoglycemic drug that can repair the pancreas β cells and promote insulin secretion. However, GLP-1 has poor stability and lacks of target ability, which makes it difficult to reach the site of action to exert its efficacy. Here, GLP-1-expressing plasmids are introduced into the Escherichia coli Nissle 1917 (EcN) and a lipid membrane is formed through simple self-assembly on its surface, resulting in an oral delivery system (LEG) capable of resisting the harsh environment of the gastrointestinal tract. The system utilizes the chemotactic properties of probiotics to achieve efficient enrichment at the pancreatic site, and protects islet β cells from destruction by regulating the balance of immune cells. More interestingly, LEG not only continuously produces GLP-1 to restore pancreatic islet β cell function and secrete insulin to control blood sugar levels, but also regulates the intestinal flora and increases the richness and diversity of probiotics. In mice diabetes models, oral administration of LEG only once every other day has good biosafety and compliance, and achieves long-term control of blood glucose. Therefore, this strategy not only provides an oral delivery platform for pancreatic targeting, but also opens up new avenues for reversing diabetes.
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Affiliation(s)
- Yifei Wang
- Department of MRI, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, China
| | - Yupeng Shi
- Department of MRI, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Xueyuan Peng
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, China
| | - Tongtong Li
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, China
| | - Chenglin Liang
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, China
| | - Wenhao Wang
- Department of MRI, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Mengyang Zhou
- Department of MRI, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Jiali Yang
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, China
| | - Jingliang Cheng
- Department of MRI, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Zhenzhong Zhang
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, China
- Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases, Zhengzhou University, Zhengzhou, 450001, China
| | - Lin Hou
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, China
- Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases, Zhengzhou University, Zhengzhou, 450001, China
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Jin Z, Zhang Q, Liu K, Wang S, Yan Y, Zhang B, Zhao L. The association between interleukin family and diabetes mellitus and its complications: An overview of systematic reviews and meta-analyses. Diabetes Res Clin Pract 2024; 210:111615. [PMID: 38513987 DOI: 10.1016/j.diabres.2024.111615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 02/26/2024] [Accepted: 03/11/2024] [Indexed: 03/23/2024]
Abstract
OBJECTIVE To evaluate and summarize the association between interleukin (IL) concentrations and diabetes mellitus (DM) and its complications. METHODS Meta-analyses and eligible individual studies of observational studies investigating the associations between IL and DM and its complications were included. The random-effects model was used to estimate the summary effect, and the heterogeneity among studies was assessed using the Q-statistic and the I2 metric; The Egger's regression and the χ2 test were used to test for small study effects and excess significance bias. RESULTS This overview identified 34 meta-analyses that investigated the association between IL concentrations and DM and its complications. Meta-analyses of prospective studies indicated that elevated circulating IL-6 and IL-1β had predictive value for the incident of type 2 diabetes mellitus (T2DM), type 1 diabetes mellitus (T1DM) as well as gestational diabetes mellitus (GDM), and the overall Hazard Ratio (HR) of T2DM was 1.28 (95 % CI: 1.17, 1.40; P<0.001) per 1 log pg/ml increment in IL-6 levels, however, there was no correlation between circulating IL-10 levels and DM. Meanwhile, the increased level of IL-6 was significantly associated several diabetic complications (Diabetic kidney disease[DKD], diabetic peripheral neuropathy[DPN], and cognitive impairment[CI]), and for the diabetic retinopathy (DR), the levels of IL-1β, IL-8 and IL-10 in the aqueous humor and vitreous humor, but not the blood were significantly correlated with it. CONCLUSION Multiple ILs, such as the IL-6 and IL-1β, are definitively linked to DM and its complications, and they may be new targets for the diagnosis and treatment, but stronger evidence needs to be confirmed by prospective studies with larger sample sizes and longer observation periods.
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Affiliation(s)
- Zishan Jin
- Institute of Metabolic Diseases, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China; Beijing University of Chinese Medicine, Beijing 100105, China
| | - Qiqi Zhang
- Institute of Metabolic Diseases, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
| | - Ke Liu
- Institute of Metabolic Diseases, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
| | - Sicheng Wang
- Beijing University of Chinese Medicine, Beijing 100105, China
| | - Yan Yan
- Health Construction Administration Center, Guang' anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
| | - Boxun Zhang
- Department of Endocrinology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Linhua Zhao
- Beijing University of Chinese Medicine, Beijing 100105, China.
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Deng C, Lu C, Wang K, Chang M, Shen Y, Yang X, Sun H, Yao X, Qiu C, Xu F. Celecoxib ameliorates diabetic sarcopenia by inhibiting inflammation, stress response, mitochondrial dysfunction, and subsequent activation of the protein degradation systems. Front Pharmacol 2024; 15:1344276. [PMID: 38313305 PMCID: PMC10834620 DOI: 10.3389/fphar.2024.1344276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Accepted: 01/05/2024] [Indexed: 02/06/2024] Open
Abstract
Aim: Diabetic sarcopenia leads to disability and seriously affects the quality of life. Currently, there are no effective therapeutic strategies for diabetic sarcopenia. Our previous studies have shown that inflammation plays a critical role in skeletal muscle atrophy. Interestingly, the connection between chronic inflammation and diabetic complications has been revealed. However, the effects of non-steroidal anti-inflammatory drug celecoxib on diabetic sarcopenia remains unclear. Materials and Methods: The streptozotocin (streptozotocin)-induced diabetic sarcopenia model was established. Rotarod test and grip strength test were used to assess skeletal muscle function. Hematoxylin and eosin and immunofluorescence staining were performed to evaluate inflammatory infiltration and the morphology of motor endplates in skeletal muscles. Succinate dehydrogenase (SDH) staining was used to determine the number of succinate dehydrogenase-positive muscle fibers. Dihydroethidium staining was performed to assess the levels of reactive oxygen species (ROS). Western blot was used to measure the levels of proteins involved in inflammation, oxidative stress, endoplasmic reticulum stress, ubiquitination, and autophagic-lysosomal pathway. Transmission electron microscopy was used to evaluate mitophagy. Results: Celecoxib significantly ameliorated skeletal muscle atrophy, improving skeletal muscle function and preserving motor endplates in diabetic mice. Celecoxib also decreased infiltration of inflammatory cell, reduced the levels of IL-6 and TNF-α, and suppressed the activation of NF-κB, Stat3, and NLRP3 inflammasome pathways in diabetic skeletal muscles. Celecoxib decreased reactive oxygen species levels, downregulated the levels of Nox2 and Nox4, upregulated the levels of GPX1 and Nrf2, and further suppressed endoplasmic reticulum stress by inhibiting the activation of the Perk-EIF-2α-ATF4-Chop in diabetic skeletal muscles. Celecoxib also inhibited the levels of Foxo3a, Fbx32 and MuRF1 in the ubiquitin-proteasome system, as well as the levels of BNIP3, Beclin1, ATG7, and LC3Ⅱ in the autophagic-lysosomal system, and celecoxib protected mitochondria and promoted mitochondrial biogenesis by elevating the levels of SIRT1 and PGC1-α, increased the number of SDH-positive fibers in diabetic skeletal muscles. Conclusion: Celecoxib improved diabetic sarcopenia by inhibiting inflammation, oxidative stress, endoplasmic reticulum stress, and protecting mitochondria, and subsequently suppressing proteolytic systems. Our study provides evidences for the molecular mechanism and treatment of diabetic sarcopenia, and broaden the way for the new use of celecoxib in diabetic sarcopenia.
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Affiliation(s)
- Chunyan Deng
- Department of Endocrinology, Affiliated Hospital 2 of Nantong University and First People’s Hospital of Nantong City, Nantong, China
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China
| | - Chunfeng Lu
- Department of Endocrinology, Affiliated Hospital 2 of Nantong University and First People’s Hospital of Nantong City, Nantong, China
| | - Kexin Wang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China
| | - Mengyuan Chang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China
| | - Yuntian Shen
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China
| | - Xiaoming Yang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China
| | - Hualin Sun
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China
| | - Xinlei Yao
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China
| | - Chunjian Qiu
- Department of Endocrinology, Jinling Hospital, Nanjing University School of Medicine, Nanjing, China
| | - Feng Xu
- Department of Endocrinology, Affiliated Hospital 2 of Nantong University and First People’s Hospital of Nantong City, Nantong, China
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Yang X, Deng H, Lv J, Chen X, Zeng L, Weng J, Liang H, Xu W. Comparison of changes in adipokine and inflammatory cytokine levels in patients with newly diagnosed type 2 diabetes treated with exenatide, insulin, or pioglitazone: A post-hoc study of the CONFIDENCE trial. Heliyon 2024; 10:e23309. [PMID: 38169889 PMCID: PMC10758788 DOI: 10.1016/j.heliyon.2023.e23309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 11/23/2023] [Accepted: 11/30/2023] [Indexed: 01/05/2024] Open
Abstract
Background Adipokines and inflammatory cytokines (ADICs) play important roles in type 2 diabetes mellitus (T2DM). This study aimed to compare the changes of ADIC levels (ΔADICs) in patients with newly diagnosed T2DM treated with different antihyperglycemic agents, and further investigate the impact of these changes on metabolic indices, β-cell function and insulin resistance (IR). Methods Four hundred and sixteen patients with newly diagnosed T2DM from 25 centers in China randomly received 48-week intervention with exenatide, insulin or pioglitazone. Anthropometric and laboratory data, indices of β-cell function and IR, and levels of AIDCs, including interleukin-1 beta (IL-1β), interferon-gamma (IFN-γ), leptin, and fibroblast growth factor 21 (FGF21) were detected at baseline and the end of the study. Results In total, 281 participants (68 % male, age: 50.3 ± 9.4 years) completed the study. After 48- week treatment, IL-1β and IFN-γ were significantly decreased with exenatide treatment (P < 0.001 and P = 0.001, respectively), but increased with insulin (P = 0.009 and P = 0.026, respectively). However, pioglitazone treatment had no impact on ADICs. No significant change in leptin or FGF21 was detected with any of the treatments. After adjustment for baseline values and changes of body weight, waist and HbA1c, the between-group differences were found in ΔIL-1β (exenatide vs. insulin: P = 0.048; and exenatide vs. pioglitazone: P = 0.003, respectively) and ΔIFN-γ (exenatide vs. insulin: P = 0.049; and exenatide vs. pioglitazone: P < 0.001, respectively). Multiple linear regression analysis indicated that Δweight was associated with ΔIL-1β (β = 0.753; 95 % CI, 0.137-1.369; P = 0.017). After adjusting for treatment effects, Δweight was also be correlated with ΔFGF21 (β = 1.097; 95%CI, 0.250-1.944; P = 0.012); furthermore, ΔHOMA-IR was correlated with Δleptin (β = 0.078; 95%CI, 0.008-0.147; P = 0.029) as well. However, ΔHOMA-IR was not significantly associated with ΔIL-1β after adjusting for treatment effects (P = 0.513). Conclusion Exenatide treatment led to significant changes of inflammatory cytokines levels (IL-1β and IFN-γ), but not adipokines (leptin and FGF21), in newly diagnosed T2DM patients. The exenatide-mediated improvement in weight and IR may be associated with a decrease in inflammatory cytokine levels.
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Affiliation(s)
- Xubin Yang
- Department of Endocrinology and Metabolism, the 3rd Affiliated Hospital of Sun Yat-sen University. NO.600, Tianhe Road, Tianhe District, Guangzhou, Guangdong, 510630, China
| | - Hongrong Deng
- Department of Endocrinology and Metabolism, the 3rd Affiliated Hospital of Sun Yat-sen University. NO.600, Tianhe Road, Tianhe District, Guangzhou, Guangdong, 510630, China
| | - Jing Lv
- Department of Endocrinology and Metabolism, the 3rd Affiliated Hospital of Sun Yat-sen University. NO.600, Tianhe Road, Tianhe District, Guangzhou, Guangdong, 510630, China
| | - Xueyan Chen
- Department of Endocrinology and Metabolism, the 3rd Affiliated Hospital of Sun Yat-sen University. NO.600, Tianhe Road, Tianhe District, Guangzhou, Guangdong, 510630, China
| | - Longyi Zeng
- Department of Endocrinology and Metabolism, the 3rd Affiliated Hospital of Sun Yat-sen University. NO.600, Tianhe Road, Tianhe District, Guangzhou, Guangdong, 510630, China
| | - Jianping Weng
- Department of Endocrinology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China (USTC), Hefei, China
| | - Hua Liang
- Department of Endocrinology and Metabolism, Shunde Hospital of Southern Medical University (The First People's Hospital of Shunde), Foshan, China
| | - Wen Xu
- Department of Endocrinology and Metabolism, the 3rd Affiliated Hospital of Sun Yat-sen University. NO.600, Tianhe Road, Tianhe District, Guangzhou, Guangdong, 510630, China
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Luo J, Ning T, Li X, Jiang T, Tan S, Ma D. Targeting IL-12 family cytokines: A potential strategy for type 1 and type 2 diabetes mellitus. Biomed Pharmacother 2024; 170:115958. [PMID: 38064968 DOI: 10.1016/j.biopha.2023.115958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 11/20/2023] [Accepted: 11/27/2023] [Indexed: 01/10/2024] Open
Abstract
Diabetes is a common metabolic disease characterized by an imbalance in blood glucose levels. The pathogenesis of diabetes involves the essential role of cytokines, particularly the IL-12 family cytokines. These cytokines, which have a similar structure, play multiple roles in regulating the immune response. Recent studies have emphasized the importance of IL-12 family cytokines in the development of both type 1 and type 2 diabetes mellitus. As a result, they hold promise as potential therapeutic targets for the treatment of these conditions. This review focuses on the potential of targeting IL-12 family cytokines for diabetes therapy based on their roles in the pathogenesis of both types of diabetes. We have summarized various therapies that target IL-12 family cytokines, including drug therapy, combination therapy, cell therapy, gene therapy, cytokine engineering therapy, and gut microbiota modulation. By analyzing the advantages and disadvantages of these therapies, we have evaluated their feasibility for clinical application and proposed possible solutions to overcome any challenges. In conclusion, targeting IL-12 family cytokines for diabetes therapy provides updated insights into their potential benefits, such as controlling inflammation, preserving islet β cells, reversing the onset of diabetes, and impeding the development of diabetic complications.
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Affiliation(s)
- Jiayu Luo
- Department of Endodontics, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, Guangdong Province, China
| | - Tingting Ning
- Department of Endodontics, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, Guangdong Province, China
| | - Xing Li
- Department of Endodontics, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, Guangdong Province, China
| | - Tao Jiang
- Department of Endodontics, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, Guangdong Province, China
| | - Shenglong Tan
- Department of Endodontics, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, Guangdong Province, China
| | - Dandan Ma
- Department of Endodontics, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, Guangdong Province, China.
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Lee CC, Kono T, Syed F, Weaver SA, Sohn P, Wu W, Chang G, Liu J, Rupnik MS, Evans-Molina C. Histone Deacetylase Inhibitors Prevent Cytokine-Induced β Cell Dysfunction Through Restoration of Stromal Interaction Molecule 1 Expression and Activation of Store-Operated Calcium Entry. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.12.06.570443. [PMID: 38106138 PMCID: PMC10723426 DOI: 10.1101/2023.12.06.570443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
Histone deacetylase inhibitors (HDIs) modulate β cell function in preclinical models of diabetes; however, the mechanisms underlying these beneficial effects have not been determined. In this study, we investigated the impact of the HDI sodium butyrate (NaB) on β cell function and calcium (Ca2+) signaling using ex vivo and in vitro models of diabetes. Our results show that NaB significantly improved glucose-stimulated insulin secretion in islets from human organ donors with type 2 diabetes and in cytokine-treated INS-1 β cells. Consistently, NaB partially rescued glucose-stimulated Ca2+ oscillations in mouse islets treated with proinflammatory cytokines. Because the oscillatory phenotype of Ca2+ in the β cell is governed by changes in endoplasmic reticulum (ER) Ca2+ levels, next we explored the relationship between NaB and store-operated calcium entry (SOCE), a rescue mechanism that acts to refill ER Ca2+ levels through STIM1-mediated gating of plasmalemmal Orai channels. We found that NaB treatment preserved basal ER Ca2+ levels and restored SOCE in IL-1β-treated INS-1 cells. Furthermore, we linked these changes with the restoration of STIM1 levels in cytokine-treated INS-1 cells and mouse islets, and we found that NaB treatment was sufficient to prevent β cell death in response to IL-1β treatment. Mechanistically, NaB counteracted cytokine-mediated reductions in phosphorylation levels of key signaling molecules, including AKT, ERK1/2, glycogen synthase kinase-3α (GSK-3α), and GSK-3β. Taken together, these data support a model whereby HDI treatment promotes β cell function and Ca2+ homeostasis under proinflammatory conditions through STIM1-mediated control of SOCE and AKT-mediated inhibition of GSK-3.
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Affiliation(s)
- Chih-Chun Lee
- Center for Diabetes and Metabolic Diseases, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Tatsuyoshi Kono
- Center for Diabetes and Metabolic Diseases, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Farooq Syed
- Center for Diabetes and Metabolic Diseases, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Staci A. Weaver
- Center for Diabetes and Metabolic Diseases, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Paul Sohn
- Center for Diabetes and Metabolic Diseases, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Wenting Wu
- Center for Diabetes and Metabolic Diseases, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Department of Medical & Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Garrick Chang
- Department of Physics, Indiana University Indianapolis, IN 46202, USA
| | - Jing Liu
- Department of Physics and Astronomy, Purdue University, West Lafayette, IN 47907, USA
| | - Marjan Slak Rupnik
- Center for Physiology and Pharmacology, Medical University of Vienna, Austria
- Alma Mater Europaea – European Center Maribor, Slovenia
| | - Carmella Evans-Molina
- Center for Diabetes and Metabolic Diseases, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Department of Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Department of Anatomy, Cell Biology, and Physiology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Richard L. Roudebush VA Medical Center, Indianapolis, IN 46202, USA
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Andreone L, dos Santos A, Wailemann R, Terra L, Gomes V, Macedo da Silva J, Rosa-Fernandes L, Sogayar M, Palmisano G, Labriola L, Perone M. Cotransplantation of marginal mass allogeneic islets with 3D culture-derived adult human skin cells improves glycemia in diabetic mice. Braz J Med Biol Res 2023; 56:e12611. [PMID: 37792778 PMCID: PMC10515501 DOI: 10.1590/1414-431x2023e12611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 08/09/2023] [Indexed: 10/06/2023] Open
Abstract
Islet transplantation represents a therapeutic option for type 1 diabetes (T1D). Long-term viability of transplanted islets requires improvement. Mesenchymal stromal cells (MSCs) have been proposed as adjuvants for islet transplantation facilitating grafting and functionality. Stem cell aggregation provides physiological interactions between cells and enhances the in situ concentration of modulators of inflammation and immunity. We established a hanging-drop culture of adult human skin fibroblast-like cells as spheroids, and skin spheroid-derived cells (SphCs) were characterized. We assessed the potential of SphCs in improving islet functionality by cotransplantation with a marginal mass of allogeneic islets in an experimental diabetic mouse model and characterized the secretome of SphCs by mass spectrometry-based proteomics. SphCs were characterized as multipotent progenitors and their coculture with anti-CD3 stimulated mouse splenocytes decreased CD4+ T cell proliferation with skewed cytokine secretion through an increase in the Th2/Th1 ratio profile. SphCs-conditioned media attenuated apoptosis of islets induced by cytokine challenge in vitro and importantly, intratesticular SphCs administration did not show tumorigenicity in immune-deficient mice. Moreover, SphCs improved glycemic control when cotransplanted with a marginal mass of allogeneic islets in a diabetic mouse model without pharmacological immunosuppression. SphCs' protein secretome differed from its paired skin fibroblast-like counterpart in containing 70% of up- and downregulated proteins and biological processes that overall positively influenced islets such as cytoprotection, cellular stress, metabolism, and survival. In summary, SphCs improved the performance of transplanted allogeneic islets in an experimental T1D model, without pharmacological immunosuppression. Future research is warranted to identify SphCs-secreted factors responsible for islets' endurance.
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Affiliation(s)
- L. Andreone
- Immuno-Endocrinology, Diabetes & Metabolism Laboratory, Instituto de Investigaciones en Medicina Traslacional (IIMT), CONICET - Universidad Austral, Pilar, Argentina
- Facultad de Ciencias Biomédicas, Universidad Austral, Pilar, Argentina
| | - A.F. dos Santos
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, SP, Brasil
| | - R.A.M. Wailemann
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, SP, Brasil
| | - L.F. Terra
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, SP, Brasil
| | - V.M. Gomes
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, SP, Brasil
| | - J. Macedo da Silva
- Departamento de Parasitologia, Instituto de Biosciências, Universidade de São Paulo, São Paulo, SP, Brasil
| | - L. Rosa-Fernandes
- Departamento de Parasitologia, Instituto de Biosciências, Universidade de São Paulo, São Paulo, SP, Brasil
| | - M.C. Sogayar
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, SP, Brasil
- Centro de Terapia Celular e Molecular, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brasil
| | - G. Palmisano
- Departamento de Parasitologia, Instituto de Biosciências, Universidade de São Paulo, São Paulo, SP, Brasil
| | - L. Labriola
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, SP, Brasil
| | - M.J. Perone
- Immuno-Endocrinology, Diabetes & Metabolism Laboratory, Instituto de Investigaciones en Medicina Traslacional (IIMT), CONICET - Universidad Austral, Pilar, Argentina
- Facultad de Ciencias Biomédicas, Universidad Austral, Pilar, Argentina
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10
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Sionov RV, Ahdut-HaCohen R. A Supportive Role of Mesenchymal Stem Cells on Insulin-Producing Langerhans Islets with a Specific Emphasis on The Secretome. Biomedicines 2023; 11:2558. [PMID: 37761001 PMCID: PMC10527322 DOI: 10.3390/biomedicines11092558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 09/06/2023] [Accepted: 09/14/2023] [Indexed: 09/29/2023] Open
Abstract
Type 1 Diabetes (T1D) is a chronic autoimmune disease characterized by a gradual destruction of insulin-producing β-cells in the endocrine pancreas due to innate and specific immune responses, leading to impaired glucose homeostasis. T1D patients usually require regular insulin injections after meals to maintain normal serum glucose levels. In severe cases, pancreas or Langerhans islet transplantation can assist in reaching a sufficient β-mass to normalize glucose homeostasis. The latter procedure is limited because of low donor availability, high islet loss, and immune rejection. There is still a need to develop new technologies to improve islet survival and implantation and to keep the islets functional. Mesenchymal stem cells (MSCs) are multipotent non-hematopoietic progenitor cells with high plasticity that can support human pancreatic islet function both in vitro and in vivo and islet co-transplantation with MSCs is more effective than islet transplantation alone in attenuating diabetes progression. The beneficial effect of MSCs on islet function is due to a combined effect on angiogenesis, suppression of immune responses, and secretion of growth factors essential for islet survival and function. In this review, various aspects of MSCs related to islet function and diabetes are described.
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Affiliation(s)
- Ronit Vogt Sionov
- The Institute of Biomedical and Oral Research (IBOR), Faculty of Dental Medicine, The Hebrew University of Jerusalem, Jerusalem 9112102, Israel
| | - Ronit Ahdut-HaCohen
- Department of Medical Neurobiology, Institute of Medical Research, Hadassah Medical School, The Hebrew University of Jerusalem, Jerusalem 9112102, Israel;
- Department of Science, The David Yellin Academic College of Education, Jerusalem 9103501, Israel
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11
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Kim Y, Kim W, Kim SH, Sim KS, Kim KH, Cho KH, Kwon GS, Lee JB, Kim JH. Protective Effects of Hemp ( Cannabis sativa) Root Extracts against Insulin-Deficient Diabetes Mellitus In Mice. Molecules 2023; 28:molecules28093814. [PMID: 37175224 PMCID: PMC10179809 DOI: 10.3390/molecules28093814] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 04/24/2023] [Accepted: 04/26/2023] [Indexed: 05/15/2023] Open
Abstract
The pharmacological potential of industrial hemp (Cannabis sativa) has been widely studied. However, the majority of studies have focused on cannabidiol, isolated from the inflorescence and leaf of the plant. In the present study, we evaluated the anti-diabetic potential of hemp root water (HWE) and ethanol extracts (HEE) in streptozotocin (STZ)-induced insulin-deficient diabetic mice. The administration of HWE and HEE ameliorated hyperglycemia and improved glucose homeostasis and islet function in STZ-treated mice (p < 0.05). HWE and HEE suppressed β-cell apoptosis and cytokine-induced inflammatory signaling in the pancreas (p < 0.05). Moreover, HWE and HEE normalized insulin-signaling defects in skeletal muscles and apoptotic response in the liver and kidney induced by STZ (p < 0.05). Gas chromatography-mass spectrometry analysis of HWE and HEE showed possible active compounds which might be responsible for the observed anti-diabetic potential. These findings indicate the possible mechanisms by which hemp root extracts protect mice against insulin-deficient diabetes, and support the need for further studies geared towards the application of hemp root as a novel bioactive material.
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Affiliation(s)
- Yujeong Kim
- Department of Food Science and Biotechnology, Andong National University, Andong 36729, Republic of Korea
| | - Wonhee Kim
- Department of Food Science and Biotechnology, Andong National University, Andong 36729, Republic of Korea
| | - Soo-Hyun Kim
- Life Science Team, Kyochon F&B Co., Ltd., Osan 18150, Republic of Korea
| | - Kyu-Sang Sim
- Life Science Team, Kyochon F&B Co., Ltd., Osan 18150, Republic of Korea
| | - Ki-Hyun Kim
- Department of Research Project, Gyeongbuk Institute for Bioindustry, Andong 36618, Republic of Korea
| | - Kiu-Hyung Cho
- Department of Research Project, Gyeongbuk Institute for Bioindustry, Andong 36618, Republic of Korea
| | - Gi-Seok Kwon
- Department of Horticulture & Medicinal Plant, Andong National University, Andong 36729, Republic of Korea
| | - Jung-Bok Lee
- Research Institute of Food & Bio, BHNBIO Co., Ltd., Jincheon-gun 27850, Republic of Korea
| | - Jun-Ho Kim
- Department of Food Science and Biotechnology, Andong National University, Andong 36729, Republic of Korea
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12
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Chang SY, Ko Y, Kim MJ. Regulatory mechanisms of kaempferol on iNOS expression in RINm5F β-cells under exposure to interleukin-1β. Heliyon 2023; 9:e14818. [PMID: 37025778 PMCID: PMC10070653 DOI: 10.1016/j.heliyon.2023.e14818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 03/17/2023] [Accepted: 03/17/2023] [Indexed: 03/29/2023] Open
Abstract
Proinflammatory cytokines and NO play crucial roles in islet β-cells dysfunction. Though anti-inflammatory effects of kaempferol were revealed in several studies, the detailed mechanisms remain unclear. This study explored protective actions of kaempferol in interleukin-1β-treated RINm5F β-cells. Kaempferol significantly inhibited NO generation, iNOS protein, and iNOS mRNA level. Promoter study, EMSA, and κB-dependent reporter assay showed that kaempferol inhibited NF-κB-mediated iNOS gene transcription. Also, we found that kaempferol accelerated iNOS mRNA instability in iNOS 3'-UTR construct and actinomycin D chase studies. Additionally, kaempferol reduced iNOS protein stability in cycloheximide chase study and it inhibited NOS enzyme activity. Kaempferol inhibited ROS generation and preserved cell viability, and it improved insulin release. These findings suggest that kaempferol appears to be helpful in protecting islet β-cells, thereby supports kaempferol as a supplementary therapeutic candidate in inhibiting the incidence and progression of diabetes mellitus.
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13
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Frørup C, Gerwig R, Svane CAS, Mendes Lopes de Melo J, Henriksen K, Fløyel T, Pociot F, Kaur S, Størling J. Characterization of the functional and transcriptomic effects of pro-inflammatory cytokines on human EndoC-βH5 beta cells. Front Endocrinol (Lausanne) 2023; 14:1128523. [PMID: 37113489 PMCID: PMC10126300 DOI: 10.3389/fendo.2023.1128523] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 03/10/2023] [Indexed: 04/29/2023] Open
Abstract
Objective EndoC-βH5 is a newly established human beta-cell model which may be superior to previous model systems. Exposure of beta cells to pro-inflammatory cytokines is widely used when studying immune-mediated beta-cell failure in type 1 diabetes. We therefore performed an in-depth characterization of the effects of cytokines on EndoC-βH5 cells. Methods The sensitivity profile of EndoC-βH5 cells to the toxic effects of interleukin-1β (IL-1β), interferon γ (IFNγ) and tumor necrosis factor-α (TNFα) was examined in titration and time-course experiments. Cell death was evaluated by caspase-3/7 activity, cytotoxicity, viability, TUNEL assay and immunoblotting. Activation of signaling pathways and major histocompatibility complex (MHC)-I expression were examined by immunoblotting, immunofluorescence, and real-time quantitative PCR (qPCR). Insulin and chemokine secretion were measured by ELISA and Meso Scale Discovery multiplexing electrochemiluminescence, respectively. Mitochondrial function was evaluated by extracellular flux technology. Global gene expression was characterized by stranded RNA sequencing. Results Cytokines increased caspase-3/7 activity and cytotoxicity in EndoC-βH5 cells in a time- and dose-dependent manner. The proapoptotic effect of cytokines was primarily driven by IFNγ signal transduction. Cytokine exposure induced MHC-I expression and chemokine production and secretion. Further, cytokines caused impaired mitochondrial function and diminished glucose-stimulated insulin secretion. Finally, we report significant changes to the EndoC-βH5 transcriptome including upregulation of the human leukocyte antigen (HLA) genes, endoplasmic reticulum stress markers, and non-coding RNAs, in response to cytokines. Among the differentially expressed genes were several type 1 diabetes risk genes. Conclusion Our study provides detailed insight into the functional and transcriptomic effects of cytokines on EndoC-βH5 cells. This information should be useful for future studies using this novel beta-cell model.
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Affiliation(s)
- Caroline Frørup
- Translational Type 1 Diabetes Research, Clinical Research, Steno Diabetes Center Copenhagen, Herlev, Denmark
| | - Rebekka Gerwig
- Translational Type 1 Diabetes Research, Clinical Research, Steno Diabetes Center Copenhagen, Herlev, Denmark
| | | | - Joana Mendes Lopes de Melo
- Translational Type 1 Diabetes Research, Clinical Research, Steno Diabetes Center Copenhagen, Herlev, Denmark
| | - Kristine Henriksen
- Translational Type 1 Diabetes Research, Clinical Research, Steno Diabetes Center Copenhagen, Herlev, Denmark
| | - Tina Fløyel
- Translational Type 1 Diabetes Research, Clinical Research, Steno Diabetes Center Copenhagen, Herlev, Denmark
| | - Flemming Pociot
- Translational Type 1 Diabetes Research, Clinical Research, Steno Diabetes Center Copenhagen, Herlev, Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Simranjeet Kaur
- Translational Type 1 Diabetes Research, Clinical Research, Steno Diabetes Center Copenhagen, Herlev, Denmark
| | - Joachim Størling
- Translational Type 1 Diabetes Research, Clinical Research, Steno Diabetes Center Copenhagen, Herlev, Denmark
- Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
- *Correspondence: Joachim Størling,
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14
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Li L, Yu XJ, Gao L, Cheng L, Sun B, Wang G. Diabetic Ferroptosis and Pancreatic Cancer: Foe or Friend? Antioxid Redox Signal 2022; 37:1206-1221. [PMID: 35996983 DOI: 10.1089/ars.2022.0101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Significance: Pancreatic cancer and diabetes have a reciprocal causation relationship. As a potential risk factor, diabetes increases morbidity and promotes pancreatic cancer progression. The main mechanisms include islet dysfunction-induced systemic metabolic disorder, pancreatic stellate cell activation, and immunosuppression. Ferroptosis is regarded as regulated cell death, which participates in chemotherapy resistance and is refractory to radiation therapy and immunotherapy. Diabetes-induced ferroptosis causes many complications, but the underlying mechanism of diabetes-related ferroptosis in pancreatic cancer has not been discussed. Recent Advances: Ferroptosis alleviates pancreatic intraepithelial neoplasia (PanIN) progression by activating chronic inflammation. The specific drugs that cause ferroptosis achieve tumor suppression by inducing lipid peroxidation. Ferroptosis plays pro and con roles in cancer. Both the ferroptosis inhibitor and inducer exhibit antitumor effects through killing cancer cells or directly affecting tumor growth. Diabetes-induced ferroptosis contributes to tumor cell death by different components, including tumor cells, fibroblasts, immune cells, and adipocytes. A better understanding of its role in modulating the tumor microenvironment will reveal diabetes-associated ferroptotic features in cancer development, which can be used to figure out possible treatment strategies for cancer patients with hyperglycemia. Critical Issues: We demonstrate the potential roles of diabetes-related ferroptosis in pancreatic cancer progression and discuss ferroptosis-related antitumor effects and therapeutics for pancreatic cancer treatment. Future Directions: Further studies are required to highlight mechanisms of diabetes-mediated ferroptosis in pancreatic cancer tumorigenesis and progression. The antitumor effects of ferroptosis regulators combined with chemotherapy, targeted therapy, or immunotherapy in diabetic patients should be investigated. We hope that pancreatic cancer patients with diabetes will benefit from ferroptosis-related therapies. Antioxid. Redox Signal. 37, 1206-1221.
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Affiliation(s)
- Le Li
- Department of Pancreatic and Biliary Surgery and The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xing-Jia Yu
- Department of Centric Operating Room, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Lei Gao
- Department of Pancreatic and Biliary Surgery and The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Long Cheng
- Department of Pancreatic and Biliary Surgery and The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Bei Sun
- Department of Pancreatic and Biliary Surgery and The First Affiliated Hospital of Harbin Medical University, Harbin, China.,Key Laboratory of Hepatosplenic Surgery, Ministry of Education, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Gang Wang
- Department of Pancreatic and Biliary Surgery and The First Affiliated Hospital of Harbin Medical University, Harbin, China
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15
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Di Muzio C, Cipriani P, Ruscitti P. Rheumatoid Arthritis Treatment Options and Type 2 Diabetes: Unravelling the Association. BioDrugs 2022; 36:673-685. [DOI: 10.1007/s40259-022-00561-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/09/2022] [Indexed: 11/05/2022]
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16
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Oboh G, Ogunbadejo MD, Ogunsuyi OB, Oyeleye SI. Can gallic acid potentiate the antihyperglycemic effect of acarbose and metformin? Evidence from streptozotocin-induced diabetic rat model. Arch Physiol Biochem 2022; 128:619-627. [PMID: 31979987 DOI: 10.1080/13813455.2020.1716014] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
This study investigated the influence of dietary phenolic acid- Gallic acid (GA) on the antihyperglycemic properties of acarbose (ACA) and metformin (MET). Streptozotocin-induced diabetic rats were treated (p.o) with ACA, MET, GA and their combinations for 14 days. The effects of the treatments on blood glucose and insulin levels, pancreas α-amylase and intestinal α-glucosidase activities, as well as thiobarbituric acid reactive species (TBARS), thiol and reactive oxygen species (ROS) levels, including antioxidant enzyme activities were investigated. A significant increase in blood glucose, insulin, ROS and TBARS levels, and impaired antioxidant status, as well as elevation in the activities of α-amylase and α-glucosidase observed in diabetic rats were ameliorated in the treatment groups. Hpwever, GA had varying effects on the antidiabetic properties of the drugs. Nevertheless, GA showed more potentiating effects on the antidiabetic effect of MET and these effects were better observed at the lower dose of GA.
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Affiliation(s)
- Ganiyu Oboh
- Functional Foods and Nutraceuticals Unit, Department of Biochemistry, Federal University of Technology, Akure, Nigeria
| | - Mariam Damilola Ogunbadejo
- Functional Foods and Nutraceuticals Unit, Department of Biochemistry, Federal University of Technology, Akure, Nigeria
| | - Opeyemi Babatunde Ogunsuyi
- Functional Foods and Nutraceuticals Unit, Department of Biochemistry, Federal University of Technology, Akure, Nigeria
- Biomedical Technology Department, Federal University of Technology, Akure, Nigeria
| | - Sunday Idowu Oyeleye
- Functional Foods and Nutraceuticals Unit, Department of Biochemistry, Federal University of Technology, Akure, Nigeria
- Biomedical Technology Department, Federal University of Technology, Akure, Nigeria
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17
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Yang CY, Liu SH, Su CC, Fang KM, Yang TY, Liu JM, Chen YW, Chang KC, Chuang HL, Wu CT, Lee KI, Huang CF. Methylmercury Induces Mitochondria- and Endoplasmic Reticulum Stress-Dependent Pancreatic β-Cell Apoptosis via an Oxidative Stress-Mediated JNK Signaling Pathway. Int J Mol Sci 2022; 23:ijms23052858. [PMID: 35270009 PMCID: PMC8910963 DOI: 10.3390/ijms23052858] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 02/21/2022] [Accepted: 03/01/2022] [Indexed: 12/21/2022] Open
Abstract
Methylmercury (MeHg), a long-lasting organic pollutant, is known to induce cytotoxic effects in mammalian cells. Epidemiological studies have suggested that environmental exposure to MeHg is linked to the development of diabetes mellitus (DM). The exact molecular mechanism of MeHg-induced pancreatic β-cell cytotoxicity is still unclear. Here, we found that MeHg (1-4 μM) significantly decreased insulin secretion and cell viability in pancreatic β-cell-derived RIN-m5F cells. A concomitant elevation of mitochondrial-dependent apoptotic events was observed, including decreased mitochondrial membrane potential and increased proapoptotic (Bax, Bak, p53)/antiapoptotic (Bcl-2) mRNA ratio, cytochrome c release, annexin V-Cy3 binding, caspase-3 activity, and caspase-3/-7/-9 activation. Exposure of RIN-m5F cells to MeHg (2 μM) also induced protein expression of endoplasmic reticulum (ER) stress-related signaling molecules, including C/EBP homologous protein (CHOP), X-box binding protein (XBP-1), and caspase-12. Pretreatment with 4-phenylbutyric acid (4-PBA; an ER stress inhibitor) and specific siRNAs for CHOP and XBP-1 significantly inhibited their expression and caspase-3/-12 activation in MeHg-exposed RIN-mF cells. MeHg could also evoke c-Jun N-terminal kinase (JNK) activation and reactive oxygen species (ROS) generation. Antioxidant N-acetylcysteine (NAC; 1mM) or 6-hydroxy-2,5,7,8-tetramethylchroman-2-carboxylic acid (trolox; 100 μM) markedly prevented MeH-induced ROS generation and decreased cell viability in RIN-m5F cells. Furthermore, pretreatment of cells with SP600125 (JNK inhibitor; 10 μM) or NAC (1 mM) or transfection with JNK-specific siRNA obviously attenuated the MeHg-induced JNK phosphorylation, CHOP and XBP-1 protein expression, apoptotic events, and insulin secretion dysfunction. NAC significantly inhibited MeHg-activated JNK signaling, but SP600125 could not effectively reduce MeHg-induced ROS generation. Collectively, these findings demonstrate that the induction of ROS-activated JNK signaling is a crucial mechanism underlying MeHg-induced mitochondria- and ER stress-dependent apoptosis, ultimately leading to β-cell death.
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Affiliation(s)
- Ching-Yao Yang
- Department of Surgery, National Taiwan University Hospital, Taipei 100, Taiwan;
- Department of Surgery, College of Medicine, National Taiwan University, Taipei 100, Taiwan
| | - Shing-Hwa Liu
- Institute of Toxicology, College of Medicine, National Taiwan University, Taipei 100, Taiwan;
| | - Chin-Chuan Su
- Department of Otorhinolaryngology, Head and Neck Surgery, Changhua Christian Hospital, Changhua County 500, Taiwan;
| | - Kai-Min Fang
- Department of Otolaryngology, Far Eastern Memorial Hospital, New Taipei City 220, Taiwan;
| | - Tsung-Yuan Yang
- Department of Internal Medicine, Chung Shan Medical University Hospital, Taichung 402, Taiwan;
- School of Medicine, Institute of Medicine, Chung-Shan Medical University, Taichung 402, Taiwan
| | - Jui-Ming Liu
- Department of Urology, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan 330, Taiwan;
- Department of Obstetrics and Gynecology, Tri-Service General Hospital, National Defense Medical Center, Taipei 114, Taiwan
| | - Ya-Wen Chen
- Department of Physiology, School of Medicine, College of Medicine, China Medical University, Taichung 404, Taiwan;
| | - Kai-Chih Chang
- Center for Digestive Medicine, Department of Internal Medicine, China Medical University Hospital, Taichung 404, Taiwan;
| | - Haw-Ling Chuang
- Department of Emergency, Taichung Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taichung 427, Taiwan;
| | - Cheng-Tien Wu
- Department of Nutrition and Master Program of Food and Drug Safety, China Medical University, Taichung 40402, Taiwan;
| | - Kuan-I Lee
- Department of Emergency, Taichung Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taichung 427, Taiwan;
- Correspondence: (K.-I.L.); (C.-F.H.)
| | - Chun-Fa Huang
- School of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung 404, Taiwan
- Department of Nursing, College of Medical and Health Science, Asia University, Taichung 413, Taiwan
- Correspondence: (K.-I.L.); (C.-F.H.)
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18
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Huang G, Li M, Tian X, Jin Q, Mao Y, Li Y. The emerging roles of IL-36, IL-37, and IL-38 in diabetes mellitus and its complications. Endocr Metab Immune Disord Drug Targets 2022; 22:997-1008. [PMID: 35049442 DOI: 10.2174/1871530322666220113142533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 10/15/2021] [Accepted: 12/30/2021] [Indexed: 11/22/2022]
Abstract
Diabetes mellitus is a metabolic disease caused by a combination of genetics and environmental factors. The importance of the inflammatory response occurring in the pancreas and adipose tissue in the occurrence and progression of diabetes has been gradually accepted. Excess blood glucose and free fatty acids produce large amounts of inflammatory cytokines and chemokines through oxidative stress and endoplasmic reticulum stress. There is sufficient evidence that proinflammatory mediators, such as interleukin (IL)-1β, IL-6, macrophage chemotactic protein-1, and tumor necrosis factor-α, are engaged in the insulin resistance in peripheral adipose tissue and the apoptosis of pancreatic β-cells. IL-36, IL-37, and IL-38, as new members of the IL-1 family, play an indispensable effect in the regulation of immune system homeostasis and are involved in the pathogenesis of inflammatory and autoimmune diseases. Recently, the abnormal expression of IL-36, IL-37, and IL-38 in diabetes has been reported. In this review, we discuss the emerging functions, potential mechanisms, and future research directions on the role of IL-36, IL-37, and IL-38 in diabetes mellitus and its complications.
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Affiliation(s)
- Guoqing Huang
- The Affiliated Hospital of Medical School, Ningbo University, Ningbo 315020, China
| | - Mingcai Li
- School of Medicine, Ningbo University, Ningbo 315211, China
| | - Xiaoqing Tian
- The Affiliated Hospital of Medical School, Ningbo University, Ningbo 315020, China
| | - Qiankai Jin
- The Affiliated Hospital of Medical School, Ningbo University, Ningbo 315020, China
| | - Yushan Mao
- The Affiliated Hospital of Medical School, Ningbo University, Ningbo 315020, China
| | - Yan Li
- The Affiliated Hospital of Medical School, Ningbo University, Ningbo 315020, China
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19
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Preetha Rani MR, Salin Raj P, Nair A, Ranjith S, Rajankutty K, Raghu KG. In vitro and in vivo studies reveal the beneficial effects of chlorogenic acid against ER stress mediated ER-phagy and associated apoptosis in the heart of diabetic rat. Chem Biol Interact 2022; 351:109755. [PMID: 34801538 DOI: 10.1016/j.cbi.2021.109755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 11/01/2021] [Accepted: 11/16/2021] [Indexed: 11/26/2022]
Abstract
Endoplasmic reticulum (ER) and associated signaling pathways are involved in diabetic cardiomyopathy (DCM) however, detailed studies are not available. The present study investigated the role of ER stress and related pathways such as ER-phagy, apoptosis and their underlying mechanisms using appropriate models. Beneficial effect of chlorogenic acid was also evaluated against ER stress mediated DCM. H9c2 cells with high glucose (33 mM, in vitro model of hyperglycemia) showed significant activation of ER stress response (GRP78, PERK, IRE1α, ATF6α) and altered its regulatory proteins (PDI, ERO1α). Also, it enhanced ER-phagy through upregulation of Sec62, RTN3 and downregulation of FAM134B. High glucose caused apoptosis via increased levels of CHOP, caspase 12 and calnexin. All these proteins (PERK, IRE1α, ATF6α, RTN3, Sec62 and FAM134B) have been found to have a significant role in the functioning of heart such as excitation contraction coupling and we expect these alterations to induce cardiomyopathy during diabetes. This was confirmed in in vivo study too. High fat, high fructose diet with mild streptozotocin induced diabetic rats showed an increased expression of BNP confirming cardiac injury. We also noticed severe ER stress in the heart of diabetic animals. All these have contributed significantly into alterations in histopathology and increase of weight of the hearts. These findings clearly show that ER stress plays a vital protagonist in the progression of DCM. We also found chlorogenic acid is effective against hyperglycemia induced pathological alteration both in vitro as well as in vivo.
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Affiliation(s)
- M R Preetha Rani
- Biochemistry and Molecular Mechanism Laboratory, Agroprocessing and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (NIIST), Thiruvananthapuram, Kerala, 695019, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - P Salin Raj
- Biochemistry and Molecular Mechanism Laboratory, Agroprocessing and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (NIIST), Thiruvananthapuram, Kerala, 695019, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Anupama Nair
- Biochemistry and Molecular Mechanism Laboratory, Agroprocessing and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (NIIST), Thiruvananthapuram, Kerala, 695019, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - S Ranjith
- Small Animal Research Facility, Jubilee Centre for Medical Research (JCMR), Jubilee Mission Medical College and Research Institute (JMMCRI), Thrissur, Kerala, 680005, India
| | - K Rajankutty
- Small Animal Research Facility, Jubilee Centre for Medical Research (JCMR), Jubilee Mission Medical College and Research Institute (JMMCRI), Thrissur, Kerala, 680005, India
| | - K G Raghu
- Biochemistry and Molecular Mechanism Laboratory, Agroprocessing and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (NIIST), Thiruvananthapuram, Kerala, 695019, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
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20
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Ciężki S, Kurpiewska E, Bossowski A, Głowińska-Olszewska B. Multi-Faceted Influence of Obesity on Type 1 Diabetes in Children - From Disease Pathogenesis to Complications. Front Endocrinol (Lausanne) 2022; 13:890833. [PMID: 35784568 PMCID: PMC9243381 DOI: 10.3389/fendo.2022.890833] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Accepted: 05/13/2022] [Indexed: 01/08/2023] Open
Abstract
The prevalence of overweight and obesity among youth patients with diabetes type 1 is increasing. It is estimated, that even up to 35% of young patients with this type of diabetes, considered so far to be characteristic for slim figure, are overweight or even obese. General increase of obesity in children's population complicates differential diagnosis of the type of diabetes in youths. Coexistence of obesity has clinical implications for all stages of diabetes course. It is confirmed that obesity is the risk factor for autoimmune diabetes, and is connected with the earlier onset of diabetes in predisposed patients. Many diabetic patients with obesity present additional risk factors for macroangiopathy, and are recognised to present metabolic syndrome, insulin resistance, and typical for diabetes type 2 - polycystic ovary syndrome, or non-alcoholic fatty liver disease. The prevalence of obesity rises dramatically in adolescence of diabetic child, more often in girls. It has negative impact on metabolic control, glycaemic variability and insulin demand. The risk for microangiopathic complications increases as well. The treatment is difficult and includes not only insulinotherapy and non-pharmacological trials. Recently treatment of insulin resistance with biguanids, and treatment with typical for type 2 new diabetes drugs like GLP-1 analogues, SGLT-2 receptor inhibitors, or even cases of bariatric surgery also has been reported.
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21
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Yang Y, Chen Z, Zhao X, Xie H, Du L, Gao H, Xie C. Mechanisms of Kaempferol in the treatment of diabetes: A comprehensive and latest review. Front Endocrinol (Lausanne) 2022; 13:990299. [PMID: 36157449 PMCID: PMC9490412 DOI: 10.3389/fendo.2022.990299] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 08/17/2022] [Indexed: 01/07/2023] Open
Abstract
Obesity-insulin resistance-β-cells apoptosis" is an important trilogy of the pathogenesis of type 2 diabetes. With the global pandemic of obesity and diabetes, continuous research and development of new drugs focuses on the prevention of the pathological progress of these diseases. According to a recent study, the natural product kaempferol has excellent antidiabetic effects. Therefore, this review comprehensively summarized the frontier studies and pharmacological mechanisms of kaempferol in the treatment of diabetes. The successful research and development of kaempferol may yield a significant leap in the treatment of diabetes and its complications.
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Affiliation(s)
- Yan Yang
- Hospital of Chengdu, University of Traditional Chinese Medicine, Chengdu, China
| | - Zhengtao Chen
- Hospital of Chengdu, University of Traditional Chinese Medicine, Chengdu, China
| | - Xiaoyan Zhao
- Hospital of Chengdu, University of Traditional Chinese Medicine, Chengdu, China
| | - Hongyan Xie
- Hospital of Chengdu, University of Traditional Chinese Medicine, Chengdu, China
| | - Lian Du
- School of Basic Medical Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Hong Gao
- Hospital of Chengdu, University of Traditional Chinese Medicine, Chengdu, China
- *Correspondence: Hong Gao, ; Chunguang Xie,
| | - Chunguang Xie
- Hospital of Chengdu, University of Traditional Chinese Medicine, Chengdu, China
- *Correspondence: Hong Gao, ; Chunguang Xie,
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22
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Investigation of the effects of maternal separation on the pancreatic oxidative and inflammatory damages along with metabolic impairment in response to chronic social defeat stress in young adult male rats. J Diabetes Metab Disord 2021; 20:1557-1565. [PMID: 34900807 DOI: 10.1007/s40200-021-00902-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 09/13/2021] [Indexed: 10/20/2022]
Abstract
Purpose Chronic glucocorticoid release during the stress response has been proposed to initiate certain damages, which in turn produce metabolic disorders. The present study is the first work to test whether maternal separation (MS) would impact the metabolic alterations associated with pancreatic oxidative and inflammatory damages under chronic exposure to social defeat stress (CSDS) in adulthood. Methods During the first 2 weeks of life, male Wistar rats were exposed to MS or left undisturbed with their mothers (Std). Starting on postnatal day 50, the animals of each group were either left undisturbed in the standard group housing (Con) or underwent CSDS for 3 weeks. Thus, there were 4 groups (n = 7/group): Std-Con, Ms-Con, Std-CSDS, MS-CSDS. Each animal was weighed and then decapitated so that we could collect trunk blood for assessment of fasting plasma corticosterone, insulin, glucose, lipid profile, and insulin resistance. Plasma and pancreatic catalase activity, reduced glutathione (GSH), malondialdehyde levels and pancreatic interleukin-1 beta (IL-1β) content were also measured. Results MS-CSDS animals showed elevated plasma corticosterone and insulin levels (P < 0.01) along with insulin resistance (P < 0.05). According to one-way ANOVA results, chronic exposure to early or adult life adversity decreased body weight (P < 0.0001), Catalase activity and GSH levels (P < 0.0001) and increased malondialdehyde level (P = 0.0006) in plasma. Pancreatic MDA and IL-1β contents elevated just in MS-CSDS rats (P < 0.05). Conclusion Maternal separation shapes vulnerability to develop corticosterone hypersecretion, insulin resistance, pancreatic oxidative, and inflammatory damages associated with chronic exposure to later social challenges, which could potentially trigger metabolic disorders. Supplementary Information The online version contains supplementary material available at 10.1007/s40200-021-00902-3.
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23
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Yin Y, Rohli KE, Shen P, Lu H, Liu Y, Dou Q, Zhang L, Kong X, Yang S, Jia P. The epidemiology, pathophysiological mechanisms, and management toward COVID-19 patients with Type 2 diabetes: A systematic review. Prim Care Diabetes 2021; 15:899-909. [PMID: 34600859 PMCID: PMC8418914 DOI: 10.1016/j.pcd.2021.08.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Revised: 08/09/2021] [Accepted: 08/31/2021] [Indexed: 02/05/2023]
Abstract
This review comprehensively summarizes epidemiologic evidence of COVID-19 in patients with Type 2 diabetes, explores pathophysiological mechanisms, and integrates recommendations and guidelines for patient management. We found that diabetes was a risk factor for diagnosed infection and poor prognosis of COVID-19. Patients with diabetes may be more susceptible to adverse outcomes associated with SARS-CoV-2 infection due to impaired immune function and possible upregulation of enzymes that mediate viral invasion. The chronic inflammation caused by diabetes, coupled with the acute inflammatory reaction caused by SARS-CoV-2, results in a propensity for inflammatory storm. Patients with diabetes should be aware of their increased risk for COVID-19.
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Affiliation(s)
- Yun Yin
- International Institute of Spatial Lifecourse Epidemiology (ISLE), Wuhan University, Wuhan, China; West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China
| | - Kristen E Rohli
- Carver College of Medicine, University of Iowa, Iowa City, IA, USA
| | - Pengyue Shen
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China
| | - Haonan Lu
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China
| | - Yuenan Liu
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China
| | - Qingyu Dou
- International Institute of Spatial Lifecourse Epidemiology (ISLE), Wuhan University, Wuhan, China; National Clinical Research Center of Geriatrics, Geriatric Medicine Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Lin Zhang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China; International Institute of Spatial Lifecourse Epidemiology (ISLE), Wuhan University, Wuhan, China
| | - Xiangyi Kong
- Department of Breast Surgical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Shujuan Yang
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China; International Institute of Spatial Lifecourse Epidemiology (ISLE), Wuhan University, Wuhan, China.
| | - Peng Jia
- School of Resources and Environmental Science, Wuhan University, Wuhan, China; International Institute of Spatial Lifecourse Epidemiology (ISLE), Wuhan University, Wuhan, China.
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24
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Huang T, Zhou Y, Lu X, Tang C, Ren C, Bao X, Deng Z, Cao X, Zou J, Zhang Q, Ma B. Cordycepin, a major bioactive component of Cordyceps militaris, ameliorates diabetes-induced testicular damage through the Sirt1/Foxo3a pathway. Andrologia 2021; 54:e14294. [PMID: 34811786 DOI: 10.1111/and.14294] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 10/02/2021] [Accepted: 10/11/2021] [Indexed: 12/29/2022] Open
Abstract
Diabetes-induced male dysfunction is considered as a worldwide challenge, and testicular damage mainly caused by oxidative stress is its most common manifestation. Cordycepin, a natural antioxidant, has been used in the treatment of diabetic complications. However, the protective action and underlying mechanism of cordycepin on hyperglycaemia-induced testicular damage are unclear. This study aimed to investigate the protective effects and molecular mechanisms of cordycepin against diabetes-induced testicular damage. The type 2 diabetes model was established in C57BL/6 male mice via high-fat diet for 4 weeks and injected intraperitoneally with 50 mg/kg/day streptozotocin for five consecutive days. Then mice were treated with cordycepin (10 and 20 mg/kg, respectively) for 8 weeks. At the end of experiment, biochemical indicators, microstructure of testicular tissue, sperm morphology, TUNEL staining and protein expressions were evaluated. In the present study, cordycepin alleviated the testicular damage, restored disruption of the blood-testis barrier, and improved spermatogenic function via the antiapoptotic and antioxidant capacity. Mechanistically, cordycepin significantly enhanced SIRT1 expression and triggered the activity of Foxo3a, further to induce the expression of its downstream antioxidant enzymes, including Mn-SOD and CAT. These findings indicated that cordycepin could improve hyperglycaemia-induced testicular damage by regulating downstream antioxidant enzymes activity through the SIRT1/Foxo3a signalling pathway.
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Affiliation(s)
- Tao Huang
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, China
| | - Yanfen Zhou
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, China
| | - Xuanzhao Lu
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, China
| | - Chenglun Tang
- Luzhou Pinchuang Technology Co. Ltd., Luzhou, China.,Nanjing Sheng Ming Yuan Health Technology Co. Ltd., Nanjing, China
| | - Chaoxing Ren
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, China
| | - Xiaowen Bao
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, China
| | - Zhewen Deng
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, China
| | - Xiaomei Cao
- Department of Pharmacology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Jianjun Zou
- Department of Clinical Pharmacology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Qi Zhang
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, China
| | - Bo Ma
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, China
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25
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Cathepsin C Regulates Cytokine-Induced Apoptosis in β-Cell Model Systems. Genes (Basel) 2021; 12:genes12111694. [PMID: 34828301 PMCID: PMC8622156 DOI: 10.3390/genes12111694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 10/14/2021] [Accepted: 10/22/2021] [Indexed: 11/17/2022] Open
Abstract
Emerging evidence suggests that several of the lysosomal cathepsin proteases are genetically associated with type 1 diabetes (T1D) and participate in immune-mediated destruction of the pancreatic β cells. We previously reported that the T1D candidate gene cathepsin H is downregulated by pro-inflammatory cytokines in human pancreatic islets and regulates β-cell function, apoptosis, and disease progression in children with new-onset T1D. In the present study, the objective was to investigate the expression patterns of all 15 known cathepsins in β-cell model systems and examine their role in the regulation of cytokine-induced apoptosis. Real-time qPCR screening of the cathepsins in human islets, 1.1B4 and INS-1E β-cell models identified several cathepsins that were expressed and regulated by pro-inflammatory cytokines. Using small interfering RNAs to knock down (KD) the cytokine-regulated cathepsins, we identified an anti-apoptotic function of cathepsin C as KD increased cytokine-induced apoptosis. KD of cathepsin C correlated with increased phosphorylation of JNK and p38 mitogen-activated protein kinases, and elevated chemokine CXCL10/IP-10 expression. This study suggests that cathepsin C is a modulator of β-cell survival, and that immune modulation of cathepsin expression in islets may contribute to immune-mediated β-cell destruction in T1D.
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26
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Krüger C, Jörns A, Kaynert J, Waldeck-Weiermair M, Michel T, Elsner M, Lenzen S. The importance of aquaporin-8 for cytokine-mediated toxicity in rat insulin-producing cells. Free Radic Biol Med 2021; 174:135-143. [PMID: 34363947 DOI: 10.1016/j.freeradbiomed.2021.08.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 07/20/2021] [Accepted: 08/03/2021] [Indexed: 12/29/2022]
Abstract
Aquaporin-8 (AQP8) is a peroxiporin, a transmembrane water and hydrogen peroxide (H2O2) transport protein expressed in the mitochondrial and plasma membranes of pancreatic β-cells. AQP8 protein expression is low under physiological conditions, but it increases after cytokine exposure both, in vitro and in vivo, possibly related to a NF-κB consensus sequence in the promoter. AQP8 knockdown (KD) insulin-producing RINm5F cells are particularly susceptible to cytokine-mediated oxidative stress. Cytokine (a mixture of IL-1β, TNF-α, and IFN-γ) treated AQP8 KD cells exhibited pronounced sensitivity to reactive oxygen and nitrogen species (ROS and RNS), resulting in a significant loss of β-cell viability due to enhanced toxicity of the increased concentrations of H2O2 and hydroxyl radicals (●OH) in mitochondria of AQP8 KD cells. This viability loss went along with increased caspase activities, reduced nitrite concentration (representative of nitric oxide (NO●) accumulation) and increased lipid peroxidation. The explanation for the increased toxicity of the proinflammatory cytokines in AQP8 KD cells resides in the fact that efflux of the H2O2 generated during oxidative stress in the β-cell mitochondria is hampered through the loss of the peroxiporin channels in the mitochondrial membranes of the AQP8 KD cells. The increased proinflammatory cytokine toxicity due to loss of AQP8 expression in the KD β-cell mitochondria is thus the result of increased rates of apoptosis. This decreased cell viability is caused by increased levels of oxidative stress along with a ferroptosis-mediated cell death component due to decreased NO● generation.
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Affiliation(s)
- Christina Krüger
- Institute of Clinical Biochemistry, Hannover Medical School, 30623, Hannover, Germany
| | - Anne Jörns
- Institute of Clinical Biochemistry, Hannover Medical School, 30623, Hannover, Germany
| | - Jonas Kaynert
- Institute of Clinical Biochemistry, Hannover Medical School, 30623, Hannover, Germany
| | - Markus Waldeck-Weiermair
- Cardiovascular Division, Brigham and Women's Hospital, And Harvard Medical School, Boston, MA, 02115, USA
| | - Thomas Michel
- Cardiovascular Division, Brigham and Women's Hospital, And Harvard Medical School, Boston, MA, 02115, USA
| | - Matthias Elsner
- Institute of Clinical Biochemistry, Hannover Medical School, 30623, Hannover, Germany
| | - Sigurd Lenzen
- Institute of Clinical Biochemistry, Hannover Medical School, 30623, Hannover, Germany; Institute of Experimental Diabetes Research, Hannover Medical School, 30623, Hannover, Germany.
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27
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Yan H, Chen Z, Zhang H, Yang W, Liu X, Meng Y, Xiang R, Wu Z, Ye J, Chi Y, Yang J. Intracellular ATP Signaling Contributes to FAM3A-Induced PDX1 Upregulation in Pancreatic Beta Cells. Exp Clin Endocrinol Diabetes 2021; 130:498-508. [PMID: 34592773 PMCID: PMC9377833 DOI: 10.1055/a-1608-0607] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
FAM3A is a recently identified mitochondrial protein that stimulates
pancreatic-duodenal homeobox 1 (PDX1) and insulin expressions by promoting ATP
release in islet β cells. In this study, the role of intracellular ATP
in FAM3A-induced PDX1 expression in pancreatic β cells was further
examined. Acute FAM3A inhibition using siRNA transfection in mouse pancreatic
islets significantly reduced PDX1 expression, impaired insulin secretion, and
caused glucose intolerance in normal mice.
In vitro
, FAM3A overexpression
elevated both intracellular and extracellular ATP contents and promoted PDX1
expression and insulin secretion. FAM3A-induced increase in cellular calcium
(Ca
2+
) levels, PDX1 expression, and insulin secretion,
while these were significantly repressed by inhibitors of P2 receptors or the
L-type Ca
2+
channels. FAM3A-induced PDX1 expression was
abolished by a calmodulin inhibitor. Likewise, FAM3A-induced β-cell
proliferation was also inhibited by a P2 receptor inhibitor and an L-type
Ca
2+
channels inhibitor. Both intracellular and
extracellular ATP contributed to FAM3A-induced PDX1 expression, insulin
secretion, and proliferation of pancreatic β cells.
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Affiliation(s)
- Han Yan
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Key Laboratory of Molecular Cardiovascular Science of the Ministry of Education, Center for Non-coding RNA Medicine, Peking University Health Science Center, Beijing 100191, China
| | - Zhenzhen Chen
- Hypertension Center, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Beijing 100037, China
| | - Haizeng Zhang
- Hypertension Center, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Beijing 100037, China
| | - Weili Yang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Key Laboratory of Molecular Cardiovascular Science of the Ministry of Education, Center for Non-coding RNA Medicine, Peking University Health Science Center, Beijing 100191, China.,Beijing Key Laboratory of Diabetes Research and Care, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - Xiangyang Liu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Key Laboratory of Molecular Cardiovascular Science of the Ministry of Education, Center for Non-coding RNA Medicine, Peking University Health Science Center, Beijing 100191, China
| | - Yuhong Meng
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Key Laboratory of Molecular Cardiovascular Science of the Ministry of Education, Center for Non-coding RNA Medicine, Peking University Health Science Center, Beijing 100191, China
| | - Rui Xiang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Key Laboratory of Molecular Cardiovascular Science of the Ministry of Education, Center for Non-coding RNA Medicine, Peking University Health Science Center, Beijing 100191, China
| | - Zhe Wu
- Department of Gastroenterology, Peking University People's Hospital, Beijing 100044, China
| | - Jingjing Ye
- Department of Gastroenterology, Peking University People's Hospital, Beijing 100044, China
| | - Yujing Chi
- Department of Central Laboratory & Institute of Clinical Molecular Biology, Peking University People's Hospital, Beijing 100044, China
| | - Jichun Yang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Key Laboratory of Molecular Cardiovascular Science of the Ministry of Education, Center for Non-coding RNA Medicine, Peking University Health Science Center, Beijing 100191, China
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28
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Butyrate Protects Pancreatic Beta Cells from Cytokine-Induced Dysfunction. Int J Mol Sci 2021; 22:ijms221910427. [PMID: 34638768 PMCID: PMC8508700 DOI: 10.3390/ijms221910427] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 09/24/2021] [Accepted: 09/25/2021] [Indexed: 12/12/2022] Open
Abstract
Pancreatic beta cell dysfunction caused by metabolic and inflammatory stress contributes to the development of type 2 diabetes (T2D). Butyrate, produced by the gut microbiota, has shown beneficial effects on glucose metabolism in animals and humans and may directly affect beta cell function, but the mechanisms are poorly described. The aim of this study was to investigate the effect of butyrate on cytokine-induced beta cell dysfunction in vitro. Mouse islets, rat INS-1E, and human EndoC-βH1 beta cells were exposed long-term to non-cytotoxic concentrations of cytokines and/or butyrate to resemble the slow onset of inflammation in T2D. Beta cell function was assessed by glucose-stimulated insulin secretion (GSIS), gene expression by qPCR and RNA-sequencing, and proliferation by incorporation of EdU into newly synthesized DNA. Butyrate protected beta cells from cytokine-induced impairment of GSIS and insulin content in the three beta cell models. Beta cell proliferation was reduced by both cytokines and butyrate. Expressions of the beta cell specific genes Ins, MafA, and Ucn3 reduced by the cytokine IL-1β were not affected by butyrate. In contrast, butyrate upregulated the expression of secretion/transport-related genes and downregulated inflammatory genes induced by IL-1β in mouse islets. In summary, butyrate prevents pro-inflammatory cytokine-induced beta cell dysfunction.
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29
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Gregory S, Kelley M, Lalani T. Novel Therapies in Oncology: An Individualized Approach. AACN Adv Crit Care 2021; 32:315-323. [PMID: 34490447 DOI: 10.4037/aacnacc2021102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
For decades, oncology treatments revolved around chemotherapeutic regimens that have been relatively nonspecific in their approach to cancer cell death. With advancements in genomics and personalized medicine, however, knowledge of the immune system has dramatically increased and methods for treating cancers have become much more individualized. With this increase in knowledge, vast arrays of novel therapies have entered the oncology realm. Nurses are expected to administer these therapies and ultimately manage the resulting toxicities and side effects. Such effects sometimes lead to severe illness, which may require intensive care unit admission. This article reviews novel therapies in oncology and nursing considerations pertaining to these treatment approaches as they relate to solid tumors.
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Affiliation(s)
- Stephanie Gregory
- Stephanie Gregory is Nurse Practitioner, Blood and Marrow Transplant, Northside Hospital Atlanta, 1000 Johnson Ferry Rd NE, Atlanta, GA 30342
| | - Margaret Kelley
- Margaret Kelley is Nurse Practitioner, Anderson Area Cancer Center, Easley, South Carolina
| | - Tanya Lalani
- Tanya Lalani is Nurse Practitioner, Gayle & Tom Benson Cancer Center, New Orleans, Louisiana
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30
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Li R, Sun X, Li P, Li W, Zhao L, Zhu L, Zhu S. GLP-1-Induced AMPK Activation Inhibits PARP-1 and Promotes LXR-Mediated ABCA1 Expression to Protect Pancreatic β-Cells Against Cholesterol-Induced Toxicity Through Cholesterol Efflux. Front Cell Dev Biol 2021; 9:646113. [PMID: 34307343 PMCID: PMC8292745 DOI: 10.3389/fcell.2021.646113] [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: 12/25/2020] [Accepted: 06/09/2021] [Indexed: 12/11/2022] Open
Abstract
T2DM (Type 2 diabetes) is a complex, chronic disease characterized as insulin resistance and islet β-cell dysfunction. Bariatric surgeries such as Roux-en-Y gastric bypass (RYGB) surgery and laparoscopic sleeve gastrectomy (LSG) have become part of a critical treatment regimen in the treatment of obesity and T2DM. Moreover, GLP-1 increase following bariatric surgery has been regarded as a significant event in bariatric surgery-induced remission of T2DM. In this study, a high concentration cholesterol-induced lipotoxicity was observed in INS-1 cells, including inhibited cell viability and insulin secretion. Enhanced cell apoptosis and inhibited cholesterol efflux from INS-1 cells; meanwhile, ABCA1 protein level was decreased by cholesterol stimulation. Cholesterol-induced toxicity and ABCA1 downregulation were attenuated by GLP-1 agonist EX-4. GLP-1 induced AMPK phosphorylation during the protection against cholesterol-induced toxicity. Under cholesterol stimulation, GLP-1-induced AMPK activation inhibited PARP-1 activity, therefore attenuating cholesterol-induced toxicity in INS-1 cells. In INS-1 cells, PARP-1 directly interacted with LXR, leading to the poly(ADP-ribosyl)ation of LXRα and downregulation of LXR-mediated ABCA1 expression. In the STZ-induced T2DM model in rats, RYGB surgery or EX-4 treatment improved the glucose metabolism and lipid metabolism in rats through GLP-1 inhibition of PARP-1 activity. In conclusion, GLP-1 inhibits PARP-1 to protect islet β cell function against cholesterol-induced toxicity in vitro and in vivo through enhancing cholesterol efflux. GLP-1-induced AMPK and LXR-mediated ABCA1 expression are involved in GLP-1 protective effects.
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Affiliation(s)
- Rao Li
- Department of Gastrointestinal Surgery, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Xulong Sun
- Department of Gastrointestinal Surgery, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Pengzhou Li
- Department of Gastrointestinal Surgery, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Weizheng Li
- Department of Gastrointestinal Surgery, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Lei Zhao
- Department of General Surgery, First Affiliated Hospital of University of South China, Hengyang, China
| | - Liyong Zhu
- Department of Gastrointestinal Surgery, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Shaihong Zhu
- Department of Gastrointestinal Surgery, The Third Xiangya Hospital, Central South University, Changsha, China
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31
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Chen C, Rong P, Yang M, Ma X, Feng Z, Wang W. The Role of Interleukin-1β in Destruction of Transplanted Islets. Cell Transplant 2021; 29:963689720934413. [PMID: 32543895 PMCID: PMC7563886 DOI: 10.1177/0963689720934413] [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: 12/22/2022] Open
Abstract
Islet transplantation is a promising β-cell replacement therapy for type 1 diabetes, which can reduce glucose lability and hypoglycemic episodes compared with standard insulin therapy. Despite the tremendous progress made in this field, challenges remain in terms of long-term successful transplant outcomes. The insulin independence rate remains low after islet transplantation from one donor pancreas. It has been reported that the islet-related inflammatory response is the main cause of early islet damage and graft loss after transplantation. The production of interleukin-1β (IL-1β) has considered to be one of the primary harmful inflammatory events during pancreatic procurement, islet isolation, and islet transplantation. Evidence suggests that the innate immune response is upregulated through the activity of Toll-like receptors and The NACHT Domain-Leucine-Rich Repeat and PYD-containing Protein 3 inflammasome, which are the starting points for a series of signaling events that drive excessive IL-1β production in islet transplantation. In this review, we show recent contributions to the advancement of knowledge of IL-1β in islet transplantation and discuss several strategies targeting IL-1β for improving islet engraftment.
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Affiliation(s)
- Cheng Chen
- Cell Transplantation and Gene Therapy Institute, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China.,Department of Radiology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Pengfei Rong
- Cell Transplantation and Gene Therapy Institute, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China.,Department of Radiology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Min Yang
- Cell Transplantation and Gene Therapy Institute, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Xiaoqian Ma
- Department of Radiology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Zhichao Feng
- Cell Transplantation and Gene Therapy Institute, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China.,Department of Radiology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Wei Wang
- Cell Transplantation and Gene Therapy Institute, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China.,Department of Radiology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
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Hsieh PS, Ho HH, Tsao SP, Hsieh SH, Lin WY, Chen JF, Kuo YW, Tsai SY, Huang HY. Multi-strain probiotic supplement attenuates streptozotocin-induced type-2 diabetes by reducing inflammation and β-cell death in rats. PLoS One 2021; 16:e0251646. [PMID: 34166387 PMCID: PMC8224959 DOI: 10.1371/journal.pone.0251646] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Accepted: 04/29/2021] [Indexed: 12/13/2022] Open
Abstract
Probiotics are health beneficial bacterial populations colonizing the human gut and skin. Probiotics are believed to be involved in immune system regulation, gut microbiota stabilization, prevention of infectious diseases, and adjustments of host metabolic activities. Probiotics such as Lactobacillus and Bifidobacterium affect glycemic levels, blood lipids, and protein metabolism. However, the interactions between probiotics and metabolic diseases as well as the underlying mechanisms remain unclear. We used streptozotocin (STZ)-induced diabetic animal models to study the effect of ProbiogluTM, a multi-strain probiotic supplement including Lactobaccilus salivarius subsp. salicinius AP-32, L. johnsonii MH-68, L. reuteri GL-104, and Bifidobacterium animalis subsp. lactis CP-9, on the regulation of physiochemical parameters related to type-2 diabetes. Experimental rats were randomly assigned into five groups, control group, streptozotocin (STZ)-treated rats (STZ group), STZ + 1× ProbiogluTM group, STZ + 5× ProbiogluTM group, and STZ + 10× ProbiogluTM group, and physiological data were measured at weeks 0, 2, 4, 6, and 8. Our results indicate that supplementation with ProbiogluTM significantly improved glucose tolerance, glycemic levels, insulin levels, and insulin resistance (HOMA-IR). Furthermore, we observed reduction in urea and blood lipid levels, including low-density lipoprotein (LDL), triglycerides (TG), and total cholesterol (TC). ProbiogluTM administration increased the β-cell mass in STZ-induced diabetic animal models, whereas it reduced the levels of proinflammatory cytokines TNF-α, IL-6, and IL-1β. In addition, the enhancement of oxidative stress biomarkers and superoxide dismutase (SOD) activities was associated with a decrease in malondialdehyde (MDA) levels. We conclude that ProbiogluTM attenuates STZ-induced type-2 diabetes by protecting β-cells, stabilizing glycemic levels, and reducing inflammation. Among all probiotic treating groups, the 10×ProbiogluTM treatment revealed the best results. However, these experimental results still need to be validated by different animal models of type-2 diabetes and human clinical trials in the future.
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Affiliation(s)
- Pei-Shan Hsieh
- Functional Research Division, Department of Research and Design, Bioflag Biotech Co., Ltd., Tainan, Taiwan
| | - Hsieh-Hsun Ho
- Functional Research Division, Department of Research and Design, Bioflag Biotech Co., Ltd., Tainan, Taiwan
| | - Shu Ping Tsao
- Department of Drug Discovery and Development Industry, College of Pharmacy, Taipei Medical University, Taipei, Taiwan
| | - Shih-Hung Hsieh
- Functional Research Division, Department of Research and Design, Bioflag Biotech Co., Ltd., Tainan, Taiwan
| | - Wen-Yang Lin
- Functional Research Division, Department of Research and Design, Bioflag Biotech Co., Ltd., Tainan, Taiwan
| | - Jui-Fen Chen
- Functional Research Division, Department of Research and Design, Bioflag Biotech Co., Ltd., Tainan, Taiwan
| | - Yi-Wei Kuo
- Functional Research Division, Department of Research and Design, Bioflag Biotech Co., Ltd., Tainan, Taiwan
| | - Shin-Yu Tsai
- Product Division, Department of Research and Design Bioflag Biotech Co., Ltd., Tainan, Taiwan
| | - Hui-Yu Huang
- Graduate Institute of Metabolism and Obesity Sciences, Taipei Medical University, Taipei, Taiwan
- * E-mail:
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Kaur S, Mirza AH, Overgaard AJ, Pociot F, Størling J. A Dual Systems Genetics Approach Identifies Common Genes, Networks, and Pathways for Type 1 and 2 Diabetes in Human Islets. Front Genet 2021; 12:630109. [PMID: 33777101 PMCID: PMC7987941 DOI: 10.3389/fgene.2021.630109] [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: 11/16/2020] [Accepted: 02/16/2021] [Indexed: 12/13/2022] Open
Abstract
Type 1 and 2 diabetes (T1/2D) are complex metabolic diseases caused by absolute or relative loss of functional β-cell mass, respectively. Both diseases are influenced by multiple genetic loci that alter disease risk. For many of the disease-associated loci, the causal candidate genes remain to be identified. Remarkably, despite the partially shared phenotype of the two diabetes forms, the associated loci for T1D and T2D are almost completely separated. We hypothesized that some of the genes located in risk loci for T1D and T2D interact in common pancreatic islet networks to mutually regulate important islet functions which are disturbed by disease-associated variants leading to β-cell dysfunction. To address this, we took a dual systems genetics approach. All genes located in 57 T1D and 243 T2D established genome-wide association studies (GWAS) loci were extracted and filtered for genes expressed in human islets using RNA sequencing data, and then integrated with; (1) human islet expression quantitative trait locus (eQTL) signals in linkage disequilibrium (LD) with T1D- and T2D-associated variants; or (2) with genes transcriptionally regulated in human islets by pro-inflammatory cytokines or palmitate as in vitro models of T1D and T2D, respectively. Our in silico systems genetics approaches created two interaction networks consisting of densely-connected T1D and T2D loci genes. The "T1D-T2D islet eQTL interaction network" identified 9 genes (GSDMB, CARD9, DNLZ, ERAP1, PPIP5K2, TMEM69, SDCCAG3, PLEKHA1, and HEMK1) in common T1D and T2D loci that harbor islet eQTLs in LD with disease-associated variants. The "cytokine and palmitate islet interaction network" identified 4 genes (ASCC2, HIBADH, RASGRP1, and SRGAP2) in common T1D and T2D loci whose expression is mutually regulated by cytokines and palmitate. Functional annotation analyses of the islet networks revealed a number of significantly enriched pathways and molecular functions including cell cycle regulation, inositol phosphate metabolism, lipid metabolism, and cell death and survival. In summary, our study has identified a number of new plausible common candidate genes and pathways for T1D and T2D.
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Affiliation(s)
- Simranjeet Kaur
- Department of Translational T1D Research, Steno Diabetes Center Copenhagen, Gentofte, Denmark
| | - Aashiq H Mirza
- Department of Pharmacology, Weill Cornell Medicine, New York, NY, United States
| | - Anne J Overgaard
- Department of Translational T1D Research, Steno Diabetes Center Copenhagen, Gentofte, Denmark
| | - Flemming Pociot
- Department of Translational T1D Research, Steno Diabetes Center Copenhagen, Gentofte, Denmark.,Pediatric Department E, University Hospital, Herlev, Denmark.,Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Joachim Størling
- Department of Translational T1D Research, Steno Diabetes Center Copenhagen, Gentofte, Denmark.,Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
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Li J, Wang Y, Zheng X, Sheng J, Guo H, Long W, Xu Y. Quantitative evaluation of PTPN22 copy number variation by digital droplet PCR and association with type 2 diabetes risk. Endocr J 2021; 68:153-162. [PMID: 32938833 DOI: 10.1507/endocrj.ej20-0239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Type 2 diabetes (T2D) is a chronic endocrine disorder with rapidly increasing prevalence worldwide. Genetic instability leading to metabolic dysfunction plays an important role in T2D susceptibility and progression. Structural alteration in genome, that is, copy number variation (CNV) is emerging as the inherent marker for disease identification. Previous genomic CNV array revealed that protein tyrosine phosphatase non-receptor type 22 (PTPN22) gene was overlapped with a CNV region, however, whether this CNV affected T2D risk remains to be further elucidated. In this study, we first identified divergent distributions of the PTPN22 copy number (CN) between T2D patients and healthy controls in Chinese population (p < 0.01). Risk assessment analysis revealed that the CN gain (OR = 3.28, p < 0.001) was the promising risk factor for T2D. Also, significantly positive correlations of the PTPN22 CNV with fasting plasma glucose and glycated hemoglobin were demonstrated in T2D patients. Statistical association analysis investigated that the T2D individuals carrying CN gain showed higher plasma glucose and lower insulin levels than those carrying CN normal and loss at 60 min/120 min/180 min during an OGTT test. In addition, the PTPN22 CNV had an effect on total cholesterol, and the CN gain presented higher values than the other two CN types. These results suggested that the CN gain types of the PTPN22 gene accompany with the glycometabolism dysregulation, and finally predispose their carriers to T2D; therefore, the PTPN22 CNV may be a promising biomarker for predicting T2D risk, or a clinical target for T2D diagnosis and therapy.
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Affiliation(s)
- Jiajun Li
- Institute of Biology and Medicine, College of Life Science and Health, Wuhan University of Science and Technology, Wuhan, Hubei 430081, China
| | - Yue Wang
- Institute of Biology and Medicine, College of Life Science and Health, Wuhan University of Science and Technology, Wuhan, Hubei 430081, China
| | - Xiao Zheng
- Institute of Biology and Medicine, College of Life Science and Health, Wuhan University of Science and Technology, Wuhan, Hubei 430081, China
| | - Jie Sheng
- Institute of Biology and Medicine, College of Life Science and Health, Wuhan University of Science and Technology, Wuhan, Hubei 430081, China
| | - Hui Guo
- Institute of Biology and Medicine, College of Life Science and Health, Wuhan University of Science and Technology, Wuhan, Hubei 430081, China
| | - Wenlin Long
- Institute of Biology and Medicine, College of Life Science and Health, Wuhan University of Science and Technology, Wuhan, Hubei 430081, China
| | - Yao Xu
- Institute of Biology and Medicine, College of Life Science and Health, Wuhan University of Science and Technology, Wuhan, Hubei 430081, China
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35
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Ruscitti P, Sesti G, Cipriani P, Gerli R, Giacomelli R. Correspondence on 'Disease activity, cytokines, chemokines and the risk of incident diabetes in rheumatoid arthritis'. Ann Rheum Dis 2021; 82:e119. [PMID: 33619161 DOI: 10.1136/annrheumdis-2021-220047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 02/06/2021] [Indexed: 01/05/2023]
Affiliation(s)
- Piero Ruscitti
- Department of Clinical Sciences and Applied Biotechnology, University of L'Aquila, L'Aquila, Abruzzo, Italy
| | - Giorgio Sesti
- Department of Clinical and Molecular Medicine, Sapienza University of Rome, Roma, Lazio, Italy
| | - Paola Cipriani
- Department of Clinical Sciences and Applied Biotechnology, University of L'Aquila, L'Aquila, Abruzzo, Italy
| | - Roberto Gerli
- Rheumatology Unit, Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Roberto Giacomelli
- Unit of Allergology, Immunology, Rheumatology, Department of Medicine, Università Campus Bio-Medico di Roma, Rome, Italy
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36
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Fløyel T, Meyerovich K, Prause MC, Kaur S, Frørup C, Mortensen HB, Nielsen LB, Pociot F, Cardozo AK, Størling J. SKAP2, a Candidate Gene for Type 1 Diabetes, Regulates β-Cell Apoptosis and Glycemic Control in Newly Diagnosed Patients. Diabetes 2021; 70:464-476. [PMID: 33203694 PMCID: PMC7881866 DOI: 10.2337/db20-0092] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 11/10/2020] [Indexed: 01/27/2023]
Abstract
The single nucleotide polymorphism rs7804356 located in the Src kinase-associated phosphoprotein 2 (SKAP2) gene is associated with type 1 diabetes (T1D), suggesting SKAP2 as a causal candidate gene. The objective of the study was to investigate if SKAP2 has a functional role in the β-cells in relation to T1D. In a cohort of children with newly diagnosed T1D, rs7804356 predicted glycemic control and residual β-cell function during the 1st year after diagnosis. In INS-1E cells and rat and human islets, proinflammatory cytokines reduced the content of SKAP2. Functional studies revealed that knockdown of SKAP2 aggravated cytokine-induced apoptosis in INS-1E cells and primary rat β-cells, suggesting an antiapoptotic function of SKAP2. In support of this, overexpression of SKAP2 afforded protection against cytokine-induced apoptosis, which correlated with reduced nuclear content of S536-phosphorylated nuclear factor-κB (NF-κB) subunit p65, lower nitric oxide production, and diminished CHOP expression indicative of decreased endoplasmic reticulum stress. Knockdown of CHOP partially counteracted the increase in cytokine-induced apoptosis caused by SKAP2 knockdown. In conclusion, our results suggest that SKAP2 controls β-cell sensitivity to cytokines possibly by affecting the NF-κB-inducible nitric oxide synthase-endoplasmic reticulum stress pathway.
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Affiliation(s)
- Tina Fløyel
- Translational Type 1 Diabetes Research, Steno Diabetes Center Copenhagen, Gentofte, Denmark
| | - Kira Meyerovich
- ULB Center for Diabetes Research, Université Libre de Bruxelles, Brussels, Belgium
| | - Michala C Prause
- Translational Type 1 Diabetes Research, Steno Diabetes Center Copenhagen, Gentofte, Denmark
- Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Simranjeet Kaur
- Translational Type 1 Diabetes Research, Steno Diabetes Center Copenhagen, Gentofte, Denmark
| | - Caroline Frørup
- Translational Type 1 Diabetes Research, Steno Diabetes Center Copenhagen, Gentofte, Denmark
| | - Henrik B Mortensen
- Department of Pediatrics E, Herlev and Gentofte Hospital, Herlev, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Lotte B Nielsen
- Department of Pediatrics E, Herlev and Gentofte Hospital, Herlev, Denmark
| | - Flemming Pociot
- Translational Type 1 Diabetes Research, Steno Diabetes Center Copenhagen, Gentofte, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Alessandra K Cardozo
- ULB Center for Diabetes Research, Université Libre de Bruxelles, Brussels, Belgium
| | - Joachim Størling
- Translational Type 1 Diabetes Research, Steno Diabetes Center Copenhagen, Gentofte, Denmark
- Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
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37
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Li Y, Wang Y, Zhang L, Yan Z, Shen J, Chang Y, Wang J. ι-Carrageenan Tetrasaccharide from ι-Carrageenan Inhibits Islet β Cell Apoptosis Via the Upregulation of GLP-1 to Inhibit the Mitochondrial Apoptosis Pathway. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:212-222. [PMID: 33353303 DOI: 10.1021/acs.jafc.0c06456] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
ι-Carrageenan performs diversified biological activities but has low bioavailability. ι-Carrageenan tetrasaccharide (ιCTs), a novel marine oligosaccharide prepared by the marine enzyme Cgi82A, was investigated for its effects on insulin resistance in high-fat and high-sucrose diet mice. Oral administration of ιCTs (ιCTs-L 30.0 mg/kg·bw, ιCTs-H 90.0 mg/kg·bw) decreased fasting blood glucose by 35.1% ± 1.41 (P < 0.01) and 27.4% ± 0.420 (P < 0.05), and enhanced glucose tolerance. Besides, ιCTs-L ameliorated islet vacuolization, decreased the β cell apoptosis by 21.8% ± 0.200 (P < 0.05), and promoted insulin secretion by 5.41% ± 0.0173 (P < 0.01) through pancreatic hematoxylin and eosin (H&E) staining, TUNEL staining, and insulin-glucagon immunostaining analysis. Interestingly, ιCTs-L and ιCTs-H treatment increased the incretin GLP-1 content in serum by 22.1% ± 0.402 (P < 0.01) and 10.7% ± 0.0935 (P < 0.05) respectively, through regulating the bile acid levels, which contributed to the inhibition of β cell apoptosis. Mechanically, ιCTs upregulated the expression of the GLP-1 receptor (GLP-1R) and protein kinase A (PKA) in the GLP-1/cAMP/PKA signaling pathway, and further inhibited the expression of cytochrome C and caspase 3 in the mitochondrial apoptotic pathway. In conclusion, this study suggested that ιCTs alleviated insulin resistance by GLP-1-mediated inhibition of β cell apoptosis and proposed a new strategy for developing potential functional foods that prevent insulin resistance.
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Affiliation(s)
- Yanqi Li
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
| | - Yanchao Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
| | - Lei Zhang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
| | - Ziyi Yan
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
| | - Jingjing Shen
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
| | - Yaoguang Chang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
| | - Jingfeng Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
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Tahbaz M, Yoshihara E. Immune Protection of Stem Cell-Derived Islet Cell Therapy for Treating Diabetes. Front Endocrinol (Lausanne) 2021; 12:716625. [PMID: 34447354 PMCID: PMC8382875 DOI: 10.3389/fendo.2021.716625] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 07/19/2021] [Indexed: 12/14/2022] Open
Abstract
Insulin injection is currently the main therapy for type 1 diabetes (T1D) or late stage of severe type 2 diabetes (T2D). Human pancreatic islet transplantation confers a significant improvement in glycemic control and prevents life-threatening severe hypoglycemia in T1D patients. However, the shortage of cadaveric human islets limits their therapeutic potential. In addition, chronic immunosuppression, which is required to avoid rejection of transplanted islets, is associated with severe complications, such as an increased risk of malignancies and infections. Thus, there is a significant need for novel approaches to the large-scale generation of functional human islets protected from autoimmune rejection in order to ensure durable graft acceptance without immunosuppression. An important step in addressing this need is to strengthen our understanding of transplant immune tolerance mechanisms for both graft rejection and autoimmune rejection. Engineering of functional human pancreatic islets that can avoid attacks from host immune cells would provide an alternative safe resource for transplantation therapy. Human pluripotent stem cells (hPSCs) offer a potentially limitless supply of cells because of their self-renewal ability and pluripotency. Therefore, studying immune tolerance induction in hPSC-derived human pancreatic islets will directly contribute toward the goal of generating a functional cure for insulin-dependent diabetes. In this review, we will discuss the current progress in the immune protection of stem cell-derived islet cell therapy for treating diabetes.
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Affiliation(s)
- Meghan Tahbaz
- Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA, United States
| | - Eiji Yoshihara
- Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA, United States
- David Geffen School of Medicine at University of California, Los Angeles, CA, United States
- *Correspondence: Eiji Yoshihara,
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39
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Kong M, Xie K, Lv M, Li J, Yao J, Yan K, Wu X, Xu Y, Ye D. Anti-inflammatory phytochemicals for the treatment of diabetes and its complications: Lessons learned and future promise. Biomed Pharmacother 2021; 133:110975. [PMID: 33212375 DOI: 10.1016/j.biopha.2020.110975] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 10/30/2020] [Accepted: 11/01/2020] [Indexed: 12/13/2022] Open
Abstract
Diabetes mellitus (type 1 and type 2) and its various complications continue to place a huge burden on global medical resources, despite the availability of numerous drugs that successfully lower blood glucose levels. The major challenging issue in diabetes management is the prevention of various complications that remain the leading cause of diabetes-related mortality. Moreover, the limited long-term durability of monotherapy and undesirable side effects of currently used anti-diabetic drugs underlie the urgent need for novel therapeutic approaches. Phytochemicals represent a rich source of plant-derived molecules that are of pivotal importance to the identification of compounds with therapeutic potential. In this review, we aim to discuss recent advances in the identification of a large array of phytochemicals with immense potential in the management of diabetes and its complications. Given that metabolic inflammation has been established as a key pathophysiological event that drives the progression of diabetes, we focus on the protective effects of representative phytochemicals in metabolic inflammation. This paper also discusses the potential of phytochemicals in the development of new drugs that target the inflammation in the management of diabetes and its complications.
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Affiliation(s)
- Mengjie Kong
- Key Laboratory of Glucolipid Metabolic Diseases of the Ministry of Education, Guangdong Pharmaceutical University, Guangzhou, China; Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Kang Xie
- Key Laboratory of Glucolipid Metabolic Diseases of the Ministry of Education, Guangdong Pharmaceutical University, Guangzhou, China; Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Minghui Lv
- Key Laboratory of Glucolipid Metabolic Diseases of the Ministry of Education, Guangdong Pharmaceutical University, Guangzhou, China; Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Jufei Li
- Key Laboratory of Glucolipid Metabolic Diseases of the Ministry of Education, Guangdong Pharmaceutical University, Guangzhou, China; Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Jianyu Yao
- Key Laboratory of Glucolipid Metabolic Diseases of the Ministry of Education, Guangdong Pharmaceutical University, Guangzhou, China; Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Kaixuan Yan
- Key Laboratory of Glucolipid Metabolic Diseases of the Ministry of Education, Guangdong Pharmaceutical University, Guangzhou, China; Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Xiaoqin Wu
- Key Laboratory of Glucolipid Metabolic Diseases of the Ministry of Education, Guangdong Pharmaceutical University, Guangzhou, China; Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Ying Xu
- The First Affiliated Hospital/School of Clinical Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Dewei Ye
- Key Laboratory of Glucolipid Metabolic Diseases of the Ministry of Education, Guangdong Pharmaceutical University, Guangzhou, China; Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Guangdong Pharmaceutical University, Guangzhou, China.
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40
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Andersen PAK, Petrenko V, Rose PH, Koomen M, Fischer N, Ghiasi SM, Dahlby T, Dibner C, Mandrup-Poulsen T. Proinflammatory Cytokines Perturb Mouse and Human Pancreatic Islet Circadian Rhythmicity and Induce Uncoordinated β-Cell Clock Gene Expression via Nitric Oxide, Lysine Deacetylases, and Immunoproteasomal Activity. Int J Mol Sci 2020; 22:E83. [PMID: 33374803 PMCID: PMC7795908 DOI: 10.3390/ijms22010083] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 12/18/2020] [Accepted: 12/21/2020] [Indexed: 12/11/2022] Open
Abstract
Pancreatic β-cell-specific clock knockout mice develop β-cell oxidative-stress and failure, as well as glucose-intolerance. How inflammatory stress affects the cellular clock is under-investigated. Real-time recording of Per2:luciferase reporter activity in murine and human pancreatic islets demonstrated that the proinflammatory cytokine interleukin-1β (IL-1β) lengthened the circadian period. qPCR-profiling of core clock gene expression in insulin-producing cells suggested that the combination of the proinflammatory cytokines IL-1β and interferon-γ (IFN-γ) caused pronounced but uncoordinated increases in mRNA levels of multiple core clock genes, in particular of reverse-erythroblastosis virus α (Rev-erbα), in a dose- and time-dependent manner. The REV-ERBα/β agonist SR9009, used to mimic cytokine-mediated Rev-erbα induction, reduced constitutive and cytokine-induced brain and muscle arnt-like 1 (Bmal1) mRNA levels in INS-1 cells as expected. SR9009 induced reactive oxygen species (ROS), reduced insulin-1/2 (Ins-1/2) mRNA and accumulated- and glucose-stimulated insulin secretion, reduced cell viability, and increased apoptosis levels, reminiscent of cytokine toxicity. In contrast, low (<5,0 μM) concentrations of SR9009 increased Ins-1 mRNA and accumulated insulin-secretion without affecting INS-1 cell viability, mirroring low-concentration IL-1β mediated β-cell stimulation. Inhibiting nitric oxide (NO) synthesis, the lysine deacetylase HDAC3 and the immunoproteasome reduced cytokine-mediated increases in clock gene expression. In conclusion, the cytokine-combination perturbed the intrinsic clocks operative in mouse and human pancreatic islets and induced uncoordinated clock gene expression in INS-1 cells, the latter effect associated with NO, HDAC3, and immunoproteasome activity.
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Affiliation(s)
- Phillip Alexander Keller Andersen
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 3 Blegdamsvej, DK-2200 Copenhagen N, Denmark; (P.A.K.A.); (P.H.R.); (M.K.); (N.F.); (S.M.G.); (T.D.)
| | - Volodymyr Petrenko
- Division of Endocrinology, Diabetes, Nutrition and Patient Education, Department of Cell Physiology and Metabolism, Diabetes Center, Faculty of Medicine, University of Geneva, D05.2147c Rue Michel-Servet, 1 CH-1211 Geneva 4, Switzerland; (V.P.); (C.D.)
| | - Peter Horskjær Rose
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 3 Blegdamsvej, DK-2200 Copenhagen N, Denmark; (P.A.K.A.); (P.H.R.); (M.K.); (N.F.); (S.M.G.); (T.D.)
| | - Melissa Koomen
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 3 Blegdamsvej, DK-2200 Copenhagen N, Denmark; (P.A.K.A.); (P.H.R.); (M.K.); (N.F.); (S.M.G.); (T.D.)
| | - Nico Fischer
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 3 Blegdamsvej, DK-2200 Copenhagen N, Denmark; (P.A.K.A.); (P.H.R.); (M.K.); (N.F.); (S.M.G.); (T.D.)
| | - Seyed Mojtaba Ghiasi
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 3 Blegdamsvej, DK-2200 Copenhagen N, Denmark; (P.A.K.A.); (P.H.R.); (M.K.); (N.F.); (S.M.G.); (T.D.)
| | - Tina Dahlby
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 3 Blegdamsvej, DK-2200 Copenhagen N, Denmark; (P.A.K.A.); (P.H.R.); (M.K.); (N.F.); (S.M.G.); (T.D.)
| | - Charna Dibner
- Division of Endocrinology, Diabetes, Nutrition and Patient Education, Department of Cell Physiology and Metabolism, Diabetes Center, Faculty of Medicine, University of Geneva, D05.2147c Rue Michel-Servet, 1 CH-1211 Geneva 4, Switzerland; (V.P.); (C.D.)
| | - Thomas Mandrup-Poulsen
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 3 Blegdamsvej, DK-2200 Copenhagen N, Denmark; (P.A.K.A.); (P.H.R.); (M.K.); (N.F.); (S.M.G.); (T.D.)
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Fløyel T, Mirza AH, Kaur S, Frørup C, Yarani R, Størling J, Pociot F. The Rac2 GTPase contributes to cathepsin H-mediated protection against cytokine-induced apoptosis in insulin-secreting cells. Mol Cell Endocrinol 2020; 518:110993. [PMID: 32814070 DOI: 10.1016/j.mce.2020.110993] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 07/01/2020] [Accepted: 08/12/2020] [Indexed: 10/23/2022]
Abstract
The type 1 diabetes (T1D) risk locus on chromosome 15q25.1 harbors the candidate gene CTSH (cathepsin H). We previously demonstrated that CTSH regulates β-cell function in vitro and in vivo. CTSH overexpression protected insulin-secreting INS-1 cells against cytokine-induced apoptosis. The purpose of the present study was to identify the genes through which CTSH mediates its protective effects. Microarray analysis identified 63 annotated genes differentially expressed between CTSH-overexpressing INS-1 cells and control cells treated with interleukin-1β and interferon-γ for up to 16h. Permutation test identified 10 significant genes across all time-points: Elmod1, Fam49a, Gas7, Gna15, Msrb3, Nox1, Ptgs1, Rac2, Scn7a and Ttn. Pathway analysis identified the "Inflammation mediated by chemokine and cytokine signaling pathway" with Gna15, Ptgs1 and Rac2 as significant. Knockdown of Rac2 abolished the protective effect of CTSH overexpression on cytokine-induced apoptosis, suggesting that the small GTPase and T1D candidate gene Rac2 contributes to the anti-apoptotic effect of CTSH.
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Affiliation(s)
- Tina Fløyel
- Translational Type 1 Diabetes Research, Steno Diabetes Center Copenhagen, Niels Steensens Vej 2, DK-2820, Gentofte, Denmark.
| | - Aashiq Hussain Mirza
- Department of Pharmacology, Weill Cornell Medicine, 1300 York Avenue, Box 125, New York, NY, 10065, USA.
| | - Simranjeet Kaur
- Translational Type 1 Diabetes Research, Steno Diabetes Center Copenhagen, Niels Steensens Vej 2, DK-2820, Gentofte, Denmark.
| | - Caroline Frørup
- Translational Type 1 Diabetes Research, Steno Diabetes Center Copenhagen, Niels Steensens Vej 2, DK-2820, Gentofte, Denmark.
| | - Reza Yarani
- Translational Type 1 Diabetes Research, Steno Diabetes Center Copenhagen, Niels Steensens Vej 2, DK-2820, Gentofte, Denmark.
| | - Joachim Størling
- Translational Type 1 Diabetes Research, Steno Diabetes Center Copenhagen, Niels Steensens Vej 2, DK-2820, Gentofte, Denmark; Department of Biomedical Sciences, University of Copenhagen, Blegdamsvej 3B, DK-2200, Copenhagen N, Denmark.
| | - Flemming Pociot
- Translational Type 1 Diabetes Research, Steno Diabetes Center Copenhagen, Niels Steensens Vej 2, DK-2820, Gentofte, Denmark; Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, DK-2200, Copenhagen N, Denmark.
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42
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Oxidative Stress in Cytokine-Induced Dysfunction of the Pancreatic Beta Cell: Known Knowns and Known Unknowns. Metabolites 2020; 10:metabo10120480. [PMID: 33255484 PMCID: PMC7759861 DOI: 10.3390/metabo10120480] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 11/18/2020] [Accepted: 11/21/2020] [Indexed: 12/12/2022] Open
Abstract
Compelling evidence from earlier studies suggests that the pancreatic beta cell is inherently weak in its antioxidant defense mechanisms to face the burden of protecting itself against the increased intracellular oxidative stress following exposure to proinflammatory cytokines. Recent evidence implicates novel roles for nicotinamide adenine dinucleotide phosphate (NADPH) oxidases (Noxs) as contributors to the excessive intracellular oxidative stress and damage under metabolic stress conditions. This review highlights the existing evidence on the regulatory roles of at least three forms of Noxs, namely Nox1, Nox2, and Nox4, in the cascade of events leading to islet beta cell dysfunction, specifically under the duress of chronic exposure to cytokines. Potential crosstalk between key signaling pathways (e.g., inducible nitric oxide synthase [iNOS] and Noxs) in the generation and propagation of reactive molecules and metabolites leading to mitochondrial damage and cell apoptosis is discussed. Available data accrued in investigations involving small-molecule inhibitors and antioxidant protein expression methods as tools toward the prevention of cytokine-induced oxidative damage are reviewed. Lastly, current knowledge gaps in this field, and possible avenues for future research are highlighted.
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43
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Novelli M, Masiello P, Beffy P, Menegazzi M. Protective Role of St. John's Wort and Its Components Hyperforin and Hypericin against Diabetes through Inhibition of Inflammatory Signaling: Evidence from In Vitro and In Vivo Studies. Int J Mol Sci 2020; 21:E8108. [PMID: 33143088 PMCID: PMC7662691 DOI: 10.3390/ijms21218108] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 10/26/2020] [Accepted: 10/27/2020] [Indexed: 02/06/2023] Open
Abstract
Diabetes mellitus is a very common chronic disease with progressively increasing prevalence. Besides the well-known autoimmune and inflammatory pathogenesis of type 1 diabetes, in many people, metabolic changes and inappropriate lifestyle favor a subtle chronic inflammatory state that contributes to development of insulin resistance and progressive loss of β-cell function and mass, eventually resulting in metabolic syndrome or overt type 2 diabetes. In this paper, we review the anti-inflammatory effects of the extract of Hypericum perforatum L. (St. John's wort, SJW) and its main active ingredients firstly in representative pathological situations on inflammatory basis and then in pancreatic β cells and in obese or diabetic animal models. The simultaneous and long-lasting inhibition of signal transducer and activator of transcription (STAT)-1, nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) and mitogen-activated protein kinases (MAPKs)/c-jun N-terminal kinase (JNK) signaling pathways involved in pro-inflammatory cytokine-induced β-cell dysfunction/death and insulin resistance make SJW particularly suitable for both preventive and therapeutic use in metabolic diseases. Hindrance of inflammatory cytokine signaling is likely dependent on the hyperforin content of SJW extract, but recent data reveal that hypericin can also exert relevant protective effects, mediated by activation of the cyclic adenosine monophosphate (cAMP)/protein kinase cAMP-dependent (PKA)/adenosine monophosphate activated protein kinase (AMPK) pathway, against high-fat-diet-induced metabolic abnormalities. Actually, the mechanisms of action of the two main components of SJW appear complementary, strengthening the efficacy of the plant extract. Careful quantitative analysis of SJW components and suitable dosage, with monitoring of possible drug-drug interaction in a context of remarkable tolerability, are easily achievable pre-requisites for forthcoming clinical applications.
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Affiliation(s)
- Michela Novelli
- Department of Translational Research and New Technologies in Medicine and Surgery, School of Medicine, University of Pisa, 56126 Pisa, Italy
| | - Pellegrino Masiello
- Department of Translational Research and New Technologies in Medicine and Surgery, School of Medicine, University of Pisa, 56126 Pisa, Italy
| | - Pascale Beffy
- Institute of Clinical Physiology, CNR, 56124 Pisa, Italy;
| | - Marta Menegazzi
- Department of Neuroscience, Biomedicine and Movement Sciences, Biochemistry Section, School of Medicine, University of Verona, 37134 Verona, Italy;
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Overgaard AJ, Madsen JOB, Pociot F, Johannesen J, Størling J. Systemic TNFα correlates with residual β-cell function in children and adolescents newly diagnosed with type 1 diabetes. BMC Pediatr 2020; 20:446. [PMID: 32967650 PMCID: PMC7510056 DOI: 10.1186/s12887-020-02339-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 09/10/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Type 1 diabetes (T1D) is caused by immune-mediated destruction of the β-cells. After initiation of insulin therapy many patients experience a period of improved residual β-cell function leading to partial disease remission. Cytokines are important immune-modulatory molecules and contribute to β-cell damage in T1D. The patterns of systemic circulating cytokines during T1D remission are not clear but may constitute biomarkers of disease status and progression. In this study, we investigated if the plasma levels of various pro- and anti-inflammatory cytokines around time of diagnosis were predictors of remission and residual β-cell function in children with T1D followed for one year after disease onset. METHODS In a cohort of 63 newly diagnosed children (33% females) with T1D with a mean age of 11.3 years (3.3-17.7), ten cytokines were measured of which eight were detectable in plasma samples by Mesoscale Discovery multiplex technology at study start and after 6 and 12 months. Linear regression models were used to evaluate association of cytokines with stimulated C-peptide. RESULTS Systemic levels of tumor necrosis factor (TNF)-α, interleukin (IL)-2 and IL-6 inversely correlated with stimulated C-peptide levels over the entire study (P < 0.05). The concentrations of TNFα and IL-10 at study start predicted stimulated C-peptide level at 6 months (P = 0.011 and P = 0.043, respectively, adjusted for sex, age, HbA1c and stage of puberty). CONCLUSIONS In recent-onset T1D, systemic cytokine levels, and in particular that of TNFα, correlate with residual β-cell function and may serve as prognostic biomarkers of disease remission and progression to optimize treatment strategies. TRIAL REGISTRATION The study was performed according to the criteria of the Helsinki II Declaration and was approved by the Danish Capital Region Ethics Committee on Biomedical Research Ethics (journal number H-3-2014-052). The parents of all participants gave written consent.
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Affiliation(s)
| | | | - Flemming Pociot
- Steno Diabetes Center Copenhagen, Gentofte, Denmark.,Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jesper Johannesen
- Pediatrics Department E, Herlev Hospital, Herlev, Denmark.,Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Joachim Størling
- Steno Diabetes Center Copenhagen, Gentofte, Denmark.,Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
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Ibrahim S, Harris-Kawano A, Haider I, Mirmira RG, Sims EK, Anderson RM. A novel Cre-enabled tetracycline-inducible transgenic system for tissue-specific cytokine expression in the zebrafish: CETI-PIC3. Dis Model Mech 2020; 13:dmm042556. [PMID: 32457041 PMCID: PMC7328138 DOI: 10.1242/dmm.042556] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 03/17/2020] [Indexed: 01/21/2023] Open
Abstract
Maladaptive signaling by pro-inflammatory cytokines (PICs), such as TNFα, IL1β and IFNɣ, can activate downstream signaling cascades that are implicated in the development and progression of multiple inflammatory diseases. Despite playing critical roles in pathogenesis, the availability of in vivo models in which to model tissue-specific induction of PICs is limited. To bridge this gap, we have developed a novel multi-gene expression system dubbed Cre-enabled and tetracycline-inducible transgenic system for conditional, tissue-specific expression of pro-inflammatory cytokines (CETI-PIC3). This binary transgenic system permits the stoichiometric co-expression of proteins Tumor necrosis factor a (Tnfa), Interleukin-1 beta (Il1b) and Interferon gamma (Ifng1), and H2B-GFP fluorescent reporter in a dose-dependent manner. Furthermore, cytokine misexpression is enabled only in tissue domains that can be defined by Cre recombinase expression. We have validated this system in zebrafish using an insulin:cre line. In doubly transgenic fish, quantitative real-time polymerase chain reaction demonstrated increased expression levels of tnfa, il1b and ifng1 mRNA. Moreover, specific expression in pancreatic β cells was demonstrated by both Tnfa immunofluorescence and GFP fluorescence. Cytokine-overexpressing islets elicited specific responses: β cells exhibited increased expression of genes associated with reactive oxidative species-mediated stress and endoplasmic reticulum stress, surveilling and infiltrating macrophages were increased, and β cell death was promoted. This powerful and versatile model system can be used for modeling, analysis and therapy development of diseases with an underlying inflammatory etiology.This article has an associated First Person interview with the first author of the paper.
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Affiliation(s)
- Sara Ibrahim
- Departments of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Center for Diabetes and Metabolic Diseases, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Arianna Harris-Kawano
- Center for Diabetes and Metabolic Diseases, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Isra Haider
- Center for Diabetes and Metabolic Diseases, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Raghavendra G Mirmira
- Departments of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Center for Diabetes and Metabolic Diseases, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Pediatrics, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Cellular and Integrative Physiology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Kovler Diabetes Center and Department of Medicine, The University of Chicago, Chicago, IL 60637, USA
| | - Emily K Sims
- Center for Diabetes and Metabolic Diseases, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Pediatrics, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Ryan M Anderson
- Center for Diabetes and Metabolic Diseases, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Pediatrics, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Kovler Diabetes Center and Department of Medicine, The University of Chicago, Chicago, IL 60637, USA
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46
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The Connexin 43 Regulator Rotigaptide Reduces Cytokine-Induced Cell Death in Human Islets. Int J Mol Sci 2020; 21:ijms21124311. [PMID: 32560352 PMCID: PMC7352593 DOI: 10.3390/ijms21124311] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 06/11/2020] [Accepted: 06/15/2020] [Indexed: 01/23/2023] Open
Abstract
Background: Intercellular communication mediated by cationic fluxes through the Connexin family of gap junctions regulates glucose-stimulated insulin secretion and beta cell defense against inflammatory stress. Rotigaptide (RG, ZP123) is a peptide analog that increases intercellular conductance in cardiac muscle cells by the prevention of dephosphorylation and thereby uncoupling of Connexin-43 (Cx43), possibly via action on unidentified protein phosphatases. For this reason, it is being studied in human arrhythmias. It is unknown if RG protects islet cell function and viability against inflammatory or metabolic stress, a question of considerable translational interest for the treatment of diabetes. Methods: Apoptosis was measured in human islets shown to express Cx43, treated with RG or the control peptide ZP119 and exposed to glucolipotoxicity or IL-1β + IFNɣ. INS-1 cells shown to lack Cx43 were used to examine if RG protected human islet cells via Cx43 coupling. To study the mechanisms of action of Cx43-independent effects of RG, NO, IkBα degradation, mitochondrial activity, ROS, and insulin mRNA levels were determined. Results: RG reduced cytokine-induced apoptosis ~40% in human islets. In Cx43-deficient INS-1 cells, this protective effect was markedly blunted as expected, but unexpectedly, RG still modestly reduced apoptosis, and improved mitochondrial function, insulin-2 gene levels, and accumulated insulin release. RG reduced NO production in Cx43-deficient INS-1 cells associated with reduced iNOS expression, suggesting that RG blunts cytokine-induced NF-κB signaling in insulin-producing cells in a Cx43-independent manner. Conclusion: RG reduces cytokine-induced cell death in human islets. The protective action in Cx43-deficient INS-1 cells suggests a novel inhibitory mechanism of action of RG on NF-κB signaling.
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47
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Rattanaporn P, Tongsima S, Mandrup-Poulsen T, Svasti S, Tanyong D. Combination of ferric ammonium citrate with cytokines involved in apoptosis and insulin secretion of human pancreatic beta cells related to diabetes in thalassemia. PeerJ 2020; 8:e9298. [PMID: 32587797 PMCID: PMC7304432 DOI: 10.7717/peerj.9298] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 05/14/2020] [Indexed: 01/09/2023] Open
Abstract
Background Diabetes mellitus (DM) is a common complication found in β-thalassemia patients. The mechanism of DM in β-thalassemia patients is still unclear, but it could be from an iron overload and increase of some cytokines, such as interleukin1-β (IL-1β) and tumor necrosis factor-α (TNF-α). The objective of this study was to study the effect of interaction between ferric ammonium citrate (FAC) and cytokines, IL-1β and TNF-α, on 1.1B4 human pancreatic β-cell line. Methods The effect of the combination of FAC and cytokines on cell viability was studied by MTT assay. Insulin secretion was assessed by the enzyme-linked immunosorbent assay (ELISA). The reactive oxygen species (ROS) and cell apoptosis in normal and high glucose condition were determined by flow cytometer. In addition, gene expression of apoptosis, antioxidant; glutathione peroxidase 1 (GPX1) and superoxide dismutase 2 (SOD2), and insulin secretory function were studied by real-time polymerase chain reaction (Real-time PCR). Results The findings revealed that FAC exposure resulted in the decrease of cell viability and insulin-release, and the induction of ROS and apoptosis in pancreatic cells. Interestingly, a combination of FAC and cytokines had an additive effect on SOD2 antioxidants' genes expression and endoplasmic reticulum (ER) stress. In addition, it reduced the insulin secretion genes expression; insulin (INS), glucose kinase (GCK), protein convertase 1 (PSCK1), and protein convertase 2 (PSCK2). Moreover, the highest ROS and the lowest insulin secretion were found in FAC combined with IL-1β and TNF-α in the high-glucose condition of human pancreatic beta cell, which could be involved in the mechanism of DM development in β-thalassemia patients.
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Affiliation(s)
- Patchara Rattanaporn
- Department of Clinical Microscopic, Faculty of Medical Technology, Mahidol University, Nakhon Pathom, Thailand.,Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand
| | - Sissades Tongsima
- National Biobank of Thailand, National Science and Technology Development Agency, Pathum Thani, Thailand.,National Center for Genetics Engineering and Biotechnology, National Science and Technology Development Agency, Pathum Thani, Thailand
| | - Thomas Mandrup-Poulsen
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Saovaros Svasti
- Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand.,Department of Biochemistry, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Dalina Tanyong
- Department of Clinical Microscopic, Faculty of Medical Technology, Mahidol University, Nakhon Pathom, Thailand
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48
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Rachdaoui N. Insulin: The Friend and the Foe in the Development of Type 2 Diabetes Mellitus. Int J Mol Sci 2020; 21:ijms21051770. [PMID: 32150819 PMCID: PMC7084909 DOI: 10.3390/ijms21051770] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Revised: 02/29/2020] [Accepted: 03/02/2020] [Indexed: 12/14/2022] Open
Abstract
Insulin, a hormone produced by pancreatic β-cells, has a primary function of maintaining glucose homeostasis. Deficiencies in β-cell insulin secretion result in the development of type 1 and type 2 diabetes, metabolic disorders characterized by high levels of blood glucose. Type 2 diabetes mellitus (T2DM) is characterized by the presence of peripheral insulin resistance in tissues such as skeletal muscle, adipose tissue and liver and develops when β-cells fail to compensate for the peripheral insulin resistance. Insulin resistance triggers a rise in insulin demand and leads to β-cell compensation by increasing both β-cell mass and insulin secretion and leads to the development of hyperinsulinemia. In a vicious cycle, hyperinsulinemia exacerbates the metabolic dysregulations that lead to β-cell failure and the development of T2DM. Insulin and IGF-1 signaling pathways play critical roles in maintaining the differentiated phenotype of β-cells. The autocrine actions of secreted insulin on β-cells is still controversial; work by us and others has shown positive and negative actions by insulin on β-cells. We discuss findings that support the concept of an autocrine action of secreted insulin on β-cells. The hypothesis of whether, during the development of T2DM, secreted insulin initially acts as a friend and contributes to β-cell compensation and then, at a later stage, becomes a foe and contributes to β-cell decompensation will be discussed.
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Affiliation(s)
- Nadia Rachdaoui
- Department of Animal Sciences, Room 108, Foran Hall, Rutgers, the State University of New Jersey, 59 Dudley Rd, New Brunswick, NJ 08901, USA
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49
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Incani A, Marras L, Serreli G, Ingianni A, Pompei R, Deiana M, Angius F. Human Herpesvirus 8 infection may contribute to oxidative stress in diabetes type 2 patients. BMC Res Notes 2020; 13:75. [PMID: 32054515 PMCID: PMC7020602 DOI: 10.1186/s13104-020-4935-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 02/03/2020] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVE To investigate the link between Human Herpesvirus 8 (HHV8) infection and plasma oxidative stress in patients with diabetes mellitus type 2 (DM2). RESULTS Blood samples collected from DM2 and control subjects were screened for the presence of antibodies against HHV8 and for biomarkers of oxidative stress. We determined the products of radical damage on the plasma lipid fraction, such as malondialdehyde (MDA), fatty acid hydroperoxides (HP) and 7-ketocholesterol (7-keto), the oxidation products of unsaturated fatty acids (UFA) and cholesterol, respectively. The level of plasma antioxidant α-tocopherol (α-toc) was also assessed. Relevant differences were observed in the redox status in DM2 and either HHV8-positive or -negative control subjects. The level of α-toc significantly decreased in both DM2 and HHV8-positive subjects. Levels of MDA, HP and 7-keto were much higher in HHV8-positive and DM2 subjects, indicating that plasma oxidative stress is a common feature in both DM2 and HHV8-infection. In addition, 7-keto was further increased in HHV8-positive DM2 patients. We hypothesized that the HHV8-infection may contribute to the production of ROS, and hence to the oxidative stress closely related to the pathogenesis and development of DM2.
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Affiliation(s)
- Alessandra Incani
- Unit of Experimental Pathology, Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | - Luisa Marras
- Section of Applied Microbiology, Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | - Gabriele Serreli
- Unit of Experimental Pathology, Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | - Angela Ingianni
- Section of Applied Microbiology, Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | - Raffaello Pompei
- Section of Applied Microbiology, Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | - Monica Deiana
- Unit of Experimental Pathology, Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy.
| | - Fabrizio Angius
- Section of Applied Microbiology, Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy.
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50
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Manandhar B, Cochran BJ, Rye KA. Role of High-Density Lipoproteins in Cholesterol Homeostasis and Glycemic Control. J Am Heart Assoc 2019; 9:e013531. [PMID: 31888429 PMCID: PMC6988162 DOI: 10.1161/jaha.119.013531] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Bikash Manandhar
- Lipid Research Group School of Medical Sciences Faculty of Medicine University of New South Wales Sydney New South Wales Australia
| | - Blake J Cochran
- Lipid Research Group School of Medical Sciences Faculty of Medicine University of New South Wales Sydney New South Wales Australia
| | - Kerry-Anne Rye
- Lipid Research Group School of Medical Sciences Faculty of Medicine University of New South Wales Sydney New South Wales Australia
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