1
|
Svikle Z, Paramonova N, Siliņš E, Pahirko L, Zariņa L, Baumane K, Petrovski G, Sokolovska J. DNA Methylation Profiles of PSMA6, PSMB5, KEAP1, and HIF1A Genes in Patients with Type 1 Diabetes and Diabetic Retinopathy. Biomedicines 2024; 12:1354. [PMID: 38927561 PMCID: PMC11202151 DOI: 10.3390/biomedicines12061354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Revised: 06/12/2024] [Accepted: 06/14/2024] [Indexed: 06/28/2024] Open
Abstract
We explored differences in the DNA methylation statuses of PSMA6, PSMB5, HIF1A, and KEAP1 gene promoter regions in patients with type 1 diabetes and different diabetic retinopathy (DR) stages. Study subjects included individuals with no DR (NDR, n = 41), those with non-proliferative DR (NPDR, n = 27), and individuals with proliferative DR or those who underwent laser photocoagulation (PDR/LPC, n = 46). DNA methylation was determined by Zymo OneStep qMethyl technique. The methylation of PSMA6 (NDR 5.9 (3.9-8.7) %, NPDR 4.5 (3.8-5.7) %, PDR/LPC 6.6 (4.7-10.7) %, p = 0.003) and PSMB5 (NDR 2.2 (1.9-3.7) %, NPDR 2.2 (1.9-3.0) %, PDR/LPC 3.2 (2.5-7.1) %, p < 0.01) differed across the groups. Consistent correlations were observed between the methylation levels of HIF1A and PSMA6 in all study groups. DNA methylation levels of PSMA6, PSMB5, and HIF1A genes were positively correlated with the duration of diabetes, HbA1c, and albuminuria in certain study groups. Univariate regression models revealed a significant association between the methylation level z-scores of PSMA6, PSMB5, and HIF1A and severe DR (PSMA6: OR = 1.96 (1.15; 3.33), p = 0.013; PSMB5: OR = 1.90 (1.14; 3.16), p = 0.013; HIF1A: OR = 3.19 (1.26; 8.06), p = 0.014). PSMB5 remained significantly associated with DR in multivariate analysis. Our findings suggest significant associations between the severity of DR and the DNA methylation levels of the genes PSMA6, PSMB5, and HIF1A, but not KEAP1 gene.
Collapse
Affiliation(s)
- Zane Svikle
- Faculty of Medicine, University of Latvia, Jelgavas Street 3, LV 1004 Riga, Latvia; (Z.S.); (L.Z.); (K.B.)
| | - Natalia Paramonova
- Institute of Biology, University of Latvia, Jelgavas Street 1, LV 1004 Riga, Latvia;
| | - Emīls Siliņš
- Faculty of Physics, Mathematics and Optometry, University of Latvia, Jelgavas Street 3, LV 1004 Riga, Latvia; (E.S.); (L.P.)
| | - Leonora Pahirko
- Faculty of Physics, Mathematics and Optometry, University of Latvia, Jelgavas Street 3, LV 1004 Riga, Latvia; (E.S.); (L.P.)
| | - Līga Zariņa
- Faculty of Medicine, University of Latvia, Jelgavas Street 3, LV 1004 Riga, Latvia; (Z.S.); (L.Z.); (K.B.)
- Ophthalmology Department, Riga East University Hospital, Hipokrata Street 2, LV 1038 Riga, Latvia
| | - Kristīne Baumane
- Faculty of Medicine, University of Latvia, Jelgavas Street 3, LV 1004 Riga, Latvia; (Z.S.); (L.Z.); (K.B.)
- Ophthalmology Department, Riga East University Hospital, Hipokrata Street 2, LV 1038 Riga, Latvia
| | - Goran Petrovski
- Center of Eye Research and Innovative Diagnostics, Department of Ophthalmology, Oslo University Hospital, Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, 0372 Oslo, Norway;
| | - Jelizaveta Sokolovska
- Faculty of Medicine, University of Latvia, Jelgavas Street 3, LV 1004 Riga, Latvia; (Z.S.); (L.Z.); (K.B.)
| |
Collapse
|
2
|
Qaed E, Alyafeai E, Al-Maamari A, Zaky MY, Almoiliqy M, Al-Hamyari B, Qaid A, Yafei S, Aldahmash W, Mahyoub MA, Wang F, Kang L, Tang Z, Zhang J. Uncovering the Therapeutic Potential of Phosphocreatine in Diabetic Retinopathy: Mitigating Mitochondrial Dysfunction and Apoptosis via JAK2/STAT3 Signaling Pathway. J Mol Neurosci 2024; 74:11. [PMID: 38231435 DOI: 10.1007/s12031-023-02175-2] [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: 06/15/2023] [Accepted: 12/11/2023] [Indexed: 01/18/2024]
Abstract
Diabetic retinopathy (DR) stands as a prevalent complication of diabetes mellitus, causing damage to the delicate retinal capillaries and potentially leading to visual impairment. While the exact underlying cause of DR remains elusive, compelling research suggests that mitochondrial energy deficiency and the excessive generation of reactive oxygen species (ROS) play pivotal roles in its pathogenesis. Recognizing that controlling hyperglycemia alone fails to reverse the defects in retinal mitochondria induced by diabetes, current strategies seek to restore mitochondrial function as a means of safeguarding against DR. To address this pressing issue, a comprehensive study was undertaken to explore the potential of phosphocreatine (PCr) in bolstering mitochondrial bioenergetics and providing protection against DR via modulation of the JAK2/STAT3 signaling pathway. Employing rat mitochondria and RGC-5 cells, the investigation meticulously assessed the impact of PCr on ROS production, mitochondrial membrane potential, as well as the expression of crucial apoptotic and JAK2/STAT3 signaling pathway proteins, utilizing cutting-edge techniques such as high-resolution respirometry and western blotting. The remarkable outcomes revealed that PCr exerts a profound protective influence against DR by enhancing mitochondrial function and alleviating diabetes-associated symptoms and biochemical markers. Notably, PCr administration resulted in an upregulation of antiapoptotic proteins, concomitant with a downregulation of proapoptotic proteins and the JAK2/STAT3 signaling pathway. These significant findings firmly establish PCr as a potential therapeutic avenue for combating diabetic retinopathy. By augmenting mitochondrial function and exerting antiapoptotic effects via the JAK2/STAT3 signaling pathway, PCr demonstrates promising efficacy both in vivo and in vitro, particularly in counteracting the oxidative stress engendered by hyperglycemia. In summary, our study sheds light on the potential of PCr as an innovative therapeutic strategy for diabetic retinopathy. By bolstering mitochondrial function and exerting protective effects via the modulation of the JAK2/STAT3 signaling pathway, PCr holds immense promise in ameliorating the impact of DR in the face of oxidative stress induced by hyperglycemia.
Collapse
Grants
- LT2013019 The study was supported by the Natural Science Foundation of China (no.30772601) and the University Innovation Team Project Foundation of the Education Department of Liaoning (no. LT2013019).Also,The authors extend their appreciation to the Researchers Supporting Program number (RSPD2023R1080), in King Saud University, Riyadh, Saudi Arabia.
- LT2013019 The study was supported by the Natural Science Foundation of China (no.30772601) and the University Innovation Team Project Foundation of the Education Department of Liaoning (no. LT2013019).Also,The authors extend their appreciation to the Researchers Supporting Program number (RSPD2023R1080), in King Saud University, Riyadh, Saudi Arabia.
- LT2013019 The study was supported by the Natural Science Foundation of China (no.30772601) and the University Innovation Team Project Foundation of the Education Department of Liaoning (no. LT2013019).Also,The authors extend their appreciation to the Researchers Supporting Program number (RSPD2023R1080), in King Saud University, Riyadh, Saudi Arabia.
- LT2013019 The study was supported by the Natural Science Foundation of China (no.30772601) and the University Innovation Team Project Foundation of the Education Department of Liaoning (no. LT2013019).Also,The authors extend their appreciation to the Researchers Supporting Program number (RSPD2023R1080), in King Saud University, Riyadh, Saudi Arabia.
- LT2013019 The study was supported by the Natural Science Foundation of China (no.30772601) and the University Innovation Team Project Foundation of the Education Department of Liaoning (no. LT2013019).Also,The authors extend their appreciation to the Researchers Supporting Program number (RSPD2023R1080), in King Saud University, Riyadh, Saudi Arabia.
- LT2013019 The study was supported by the Natural Science Foundation of China (no.30772601) and the University Innovation Team Project Foundation of the Education Department of Liaoning (no. LT2013019).Also,The authors extend their appreciation to the Researchers Supporting Program number (RSPD2023R1080), in King Saud University, Riyadh, Saudi Arabia.
- LT2013019 The study was supported by the Natural Science Foundation of China (no.30772601) and the University Innovation Team Project Foundation of the Education Department of Liaoning (no. LT2013019).Also,The authors extend their appreciation to the Researchers Supporting Program number (RSPD2023R1080), in King Saud University, Riyadh, Saudi Arabia.
- LT2013019 The study was supported by the Natural Science Foundation of China (no.30772601) and the University Innovation Team Project Foundation of the Education Department of Liaoning (no. LT2013019).Also,The authors extend their appreciation to the Researchers Supporting Program number (RSPD2023R1080), in King Saud University, Riyadh, Saudi Arabia.
- LT2013019 The study was supported by the Natural Science Foundation of China (no.30772601) and the University Innovation Team Project Foundation of the Education Department of Liaoning (no. LT2013019).Also,The authors extend their appreciation to the Researchers Supporting Program number (RSPD2023R1080), in King Saud University, Riyadh, Saudi Arabia.
- LT2013019 The study was supported by the Natural Science Foundation of China (no.30772601) and the University Innovation Team Project Foundation of the Education Department of Liaoning (no. LT2013019).Also,The authors extend their appreciation to the Researchers Supporting Program number (RSPD2023R1080), in King Saud University, Riyadh, Saudi Arabia.
- LT2013019 The study was supported by the Natural Science Foundation of China (no.30772601) and the University Innovation Team Project Foundation of the Education Department of Liaoning (no. LT2013019).Also,The authors extend their appreciation to the Researchers Supporting Program number (RSPD2023R1080), in King Saud University, Riyadh, Saudi Arabia.
- LT2013019 The study was supported by the Natural Science Foundation of China (no.30772601) and the University Innovation Team Project Foundation of the Education Department of Liaoning (no. LT2013019).Also,The authors extend their appreciation to the Researchers Supporting Program number (RSPD2023R1080), in King Saud University, Riyadh, Saudi Arabia.
- LT2013019 The study was supported by the Natural Science Foundation of China (no.30772601) and the University Innovation Team Project Foundation of the Education Department of Liaoning (no. LT2013019).Also,The authors extend their appreciation to the Researchers Supporting Program number (RSPD2023R1080), in King Saud University, Riyadh, Saudi Arabia.
- LT2013019 The study was supported by the Natural Science Foundation of China (no.30772601) and the University Innovation Team Project Foundation of the Education Department of Liaoning (no. LT2013019).Also,The authors extend their appreciation to the Researchers Supporting Program number (RSPD2023R1080), in King Saud University, Riyadh, Saudi Arabia.
Collapse
Affiliation(s)
- Eskandar Qaed
- Department of Pharmacology, Dalian Medical University, 9 West Section, South Road of Lushun, 116044, Dalian, China
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, People's Republic of China
| | - Eman Alyafeai
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China
| | - Ahmed Al-Maamari
- The Key Laboratory of Neural and Vascular Biology, The Key Laboratory of New Drug Pharmacology and Toxicology, Department of Pharmacology, Ministry of Education, Hebei Medical University, Shijiazhuang, China
| | - Mohamed Y Zaky
- Molecular Physiology Division, Zoology Department, Faculty of Science, Beni-Suef University, P.O. Box 62521, Beni-Suef, Egypt
| | - Marwan Almoiliqy
- Department of Pharmacology, Dalian Medical University, 9 West Section, South Road of Lushun, 116044, Dalian, China
| | - Bandar Al-Hamyari
- School of Pharmacy & State Key Laboratory of Applied Organic Chemistry, Lanzhou University, 730000, Lanzhou, People's Republic of China
| | - Abdullah Qaid
- N.I. Pirogov Russian National Research Medical University, Moscow, Russia
| | - Saeed Yafei
- Department of Pharmacology, Dalian Medical University, 9 West Section, South Road of Lushun, 116044, Dalian, China
| | - Waleed Aldahmash
- Zoology Department, College of Science, King Saud University, P. O. Box 2455, 11451, Riyadh, Saudi Arabia
| | - Mueataz A Mahyoub
- Department of Gastroenterology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Fuhan Wang
- Department of Pharmacology, Dalian Medical University, 9 West Section, South Road of Lushun, 116044, Dalian, China
| | - Le Kang
- Department of Pharmacology, Dalian Medical University, 9 West Section, South Road of Lushun, 116044, Dalian, China
| | - Zeyao Tang
- Department of Pharmacology, Dalian Medical University, 9 West Section, South Road of Lushun, 116044, Dalian, China.
| | - Jianbin Zhang
- Department of Pharmacology, Dalian Medical University, 9 West Section, South Road of Lushun, 116044, Dalian, China.
| |
Collapse
|
3
|
Iacobini C, Vitale M, Haxhi J, Pesce C, Pugliese G, Menini S. Mutual Regulation between Redox and Hypoxia-Inducible Factors in Cardiovascular and Renal Complications of Diabetes. Antioxidants (Basel) 2022; 11:2183. [PMID: 36358555 PMCID: PMC9686572 DOI: 10.3390/antiox11112183] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/31/2022] [Accepted: 11/02/2022] [Indexed: 08/30/2023] Open
Abstract
Oxidative stress and hypoxia-inducible factors (HIFs) have been implicated in the pathogenesis of diabetic cardiovascular and renal diseases. Reactive oxygen species (ROS) mediate physiological and pathophysiological processes, being involved in the modulation of cell signaling, differentiation, and survival, but also in cyto- and genotoxic damage. As master regulators of glycolytic metabolism and oxygen homeostasis, HIFs have been largely studied for their role in cell survival in hypoxic conditions. However, in addition to hypoxia, other stimuli can regulate HIFs stability and transcriptional activity, even in normoxic conditions. Among these, a regulatory role of ROS and their byproducts on HIFs, particularly the HIF-1α isoform, has received growing attention in recent years. On the other hand, HIF-1α and HIF-2α exert mutually antagonistic effects on oxidative damage. In diabetes, redox-mediated HIF-1α deregulation contributes to the onset and progression of cardiovascular and renal complications, and recent findings suggest that deranged HIF signaling induced by hyperglycemia and other cellular stressors associated with metabolic disorders may cause mitochondrial dysfunction, oxidative stress, and inflammation. Understanding the mechanisms of mutual regulation between HIFs and redox factors and the specific contribution of the two main isoforms of HIF-α is fundamental to identify new therapeutic targets for vascular complications of diabetes.
Collapse
Affiliation(s)
- Carla Iacobini
- Department of Clinical and Molecular Medicine, “La Sapienza” University, 00189 Rome, Italy
| | - Martina Vitale
- Department of Clinical and Molecular Medicine, “La Sapienza” University, 00189 Rome, Italy
| | - Jonida Haxhi
- Department of Clinical and Molecular Medicine, “La Sapienza” University, 00189 Rome, Italy
| | - Carlo Pesce
- Department of Neurosciences, Rehabilitation, Ophthalmology, Genetic and Maternal Infantile Sciences (DINOGMI), Department of Excellence of MIUR, University of Genoa Medical School, 16132 Genoa, Italy
| | - Giuseppe Pugliese
- Department of Clinical and Molecular Medicine, “La Sapienza” University, 00189 Rome, Italy
| | - Stefano Menini
- Department of Clinical and Molecular Medicine, “La Sapienza” University, 00189 Rome, Italy
| |
Collapse
|
4
|
Association of hypoxia inducible factor 1-Alpha gene polymorphisms with multiple disease risks: A comprehensive meta-analysis. PLoS One 2022; 17:e0273042. [PMID: 35972942 PMCID: PMC9380912 DOI: 10.1371/journal.pone.0273042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 08/01/2022] [Indexed: 11/19/2022] Open
Abstract
HIF1A gene polymorphisms have been confirmed the association with cancer risk through the statistical meta-analysis based on single genetic association (SGA) studies. A good number SGA studies also investigated the association of HIF1A gene with several other diseases, but no researcher yet performed statistical meta-analysis to confirm this association more accurately. Therefore, in this paper, we performed a statistical meta-analysis to draw a consensus decision about the association of HIF1A gene polymorphisms with several diseases except cancers giving the weight on large sample size. This meta-analysis was performed based on 41 SGA study’s findings, where the polymorphisms rs11549465 (1772 C/T) and rs11549467 (1790 G/A) of HIF1A gene were analyzed based on 11544 and 7426 cases and 11494 and 7063 control samples, respectively. Our results showed that the 1772 C/T polymorphism is not significantly associated with overall disease risks. The 1790 G/A polymorphism was significantly associated with overall diseases under recessive model (AA vs. AG + GG), which indicates that the A allele is responsible for overall diseases though it is recessive. The subgroup analysis based on ethnicity showed the significant association of 1772 C/T polymorphism with overall disease for Caucasian population under the all genetic models, which indicates that the C allele controls overall diseases. The ethnicity subgroup showed the significant association of 1790 G/A polymorphism with overall disease for Asian population under the recessive model (AA vs. AG + GG), which indicates that the A allele is responsible for overall diseases. The subgroup analysis based on disease types showed that 1772 C/T is significantly associated with chronic obstructive pulmonary disease (COPD) under two genetic models (C vs. T and CC vs. CT + TT), skin disease under two genetic models (CC vs. TT and CC + CT vs. TT), and diabetic complications under three genetic models (C vs. T, CT vs. TT and CC + CT vs. TT), where C allele is high risk factor for skin disease and diabetic complications (since, ORs > 1), but low risk factor for COPD (since, ORs < 1). Also the 1790 G/A variant significantly associated with the subgroup of cardiovascular disease (CVD) under homozygote model, diabetic complications under allelic and homozygote models, and other disease under four genetic models, where the A is high risk factor for diabetic complications and low risk factor for CVD. Thus, this study provided more evidence that the HIF1A gene is significantly associated with COPD, CVD, skin disease and diabetic complications. These might be the severe comorbidities and risk factors for multiple cancers due to the effect of HIF1A gene and need further investigations accumulating large number of studies.
Collapse
|
5
|
Mohamed MK, Atef AA, Moemen LA, Abdel Azeem AA, Mohalhal IA, Taha AM. Association study of HIF-1α rs11549465 and VEGF rs3025039 genetic variants with diabetic retinopathy in Egyptian patients: crosslinks with angiogenic, inflammatory, and anti-inflammatory markers. J Genet Eng Biotechnol 2022; 20:122. [PMID: 35969320 PMCID: PMC9378806 DOI: 10.1186/s43141-022-00401-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 07/14/2022] [Indexed: 11/10/2022]
Abstract
Background Genetic factors are implicated in the progression of DR—a global cause of blindness. Hence, the current work investigated the association of HIF-1α rs11549465 and VEGF rs3025039 genetic variants with the different stages of retinopathy among T2DM Egyptian patients. The crosslinks of these variants were explored with angiogenesis (VEGF), inflammation (AGEP and VCAM-1), and anti-inflammation (CTRP3) markers. Two hundred eighty-eight subjects were recruited in this study: 72 served as controls and 216 were having T2DM and were divided into diabetics without retinopathy (DWR), diabetics with non-proliferative retinopathy (NPDR), and diabetics with proliferative retinopathy (PDR). The genetic variants were analyzed using PCR-RFLP and their associations with NPDR and PDR were statistically tested. The circulating levels of AGEP, VCAM-1, HIF-1α, VEGF, and CTRP3 were assayed followed by analyzing their associations statistically with the studied variants. Results Only HIF-1α rs11549465 genetic variant (recessive model) was significantly associated with the development of NPDR among T2DM patients (p < 0.025) with a significant correlation with the circulating HIF-1α level (p < 0.0001). However, this variant was not associated with PDR progression. Neither HIF-1α rs11549465 nor VEGF rs3025039 genetic variants were associated with the PDR progression. The circulating AGEP, VCAM-1, HIF-1α, and VEGF were significantly elevated (p < 0.0001) while the CTRP3 was significantly decreased (p < 0.0001) in NPDR and PDR groups. The HIF-1α rs11549465 CT and/or TT genotype carriers were significantly associated with AGEP and VCAM-1 levels in the NPDR group, while it showed a significant association with the CTRP3 level in the PDR group. The VEGF rs3025039 TT genotype carriers showed only a significant association with the CTRP3 level in the PDR group. Conclusion The significant association of HIF-1α rs11549465 other than VEGF rs3025039 with the initiation of NPDR in T2DM Egyptian patients might protect them from progression to the proliferative stage via elevating circulating HIF-1α. However, this protective role was not enough to prevent the development of NPDR because of enhancing angiogenesis and inflammation together with suppressing anti-inflammation. The non-significant association of HIF-1α rs11549465 with PDR among T2DM patients could not make this variant a risk factor for PDR progression.
Collapse
Affiliation(s)
| | - Azza A Atef
- Department of Biochemistry, Faculty of Science, Ain Shams University, Cairo, Egypt
| | - Leqaa A Moemen
- Biochemistry Unit, Research Institute of Ophthalmology, Giza, Egypt
| | | | - Islam A Mohalhal
- Surgical Retina, Research Institute of Ophthalmology, Giza, Egypt
| | - Alshaimaa M Taha
- Department of Biochemistry, Faculty of Science, Ain Shams University, Cairo, Egypt.
| |
Collapse
|
6
|
Mei S, Li L, Zhou X, Xue C, Livingston MJ, Wei Q, Dai B, Mao Z, Mei C, Dong Z. Susceptibility of renal fibrosis in diabetes: Role of hypoxia inducible factor-1. FASEB J 2022; 36:e22477. [PMID: 35881071 PMCID: PMC9386694 DOI: 10.1096/fj.202200845r] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 07/09/2022] [Accepted: 07/19/2022] [Indexed: 01/09/2023]
Abstract
Diabetes may prevent kidney repair and sensitize the kidney to fibrosis or scar formation. To test this possibility, we examined renal fibrosis induced by unilateral ureteral obstruction (UUO) in diabetic mouse models. Indeed, UUO induced significantly more renal fibrosis in both Akita and STZ-induced diabetic mice than in nondiabetic mice. The diabetic mice also had more apoptosis and interstitial macrophage infiltration during UUO. In vitro, hypoxia induced higher expression of the fibrosis marker protein fibronectin in high glucose-conditioned renal tubular cells than in normal glucose cells. Mechanistically, hypoxia induced significantly more hypoxia-inducible factor-1 α (HIF-1 α) in high glucose cells than in normal glucose cells. Inhibition of HIF-1 attenuated the expression of fibronectin induced by hypoxia in high-glucose cells. Consistently, UUO induced significantly higher HIF-1α expression along with fibrosis in diabetic mice kidneys than in nondiabetic kidneys. The increased expression of fibrosis induced by UUO in diabetic mice was diminished in proximal tubule-HIF-1α-knockout mice. Together, these results indicate that diabetes sensitizes kidney tissues and cells to fibrogenesis probably by enhancing HIF-1 activation.
Collapse
Affiliation(s)
- Shuqin Mei
- Department of Nephrology, Second Affiliated Hospital of Naval Medical University, Shanghai, China.,Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University and Charlie Norwood VA Medical Center, Augusta, Georgia, USA
| | - Lin Li
- Department of Nephrology, Second Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Xiangjun Zhou
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Cheng Xue
- Department of Nephrology, Second Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Man J Livingston
- Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University and Charlie Norwood VA Medical Center, Augusta, Georgia, USA
| | - Qingqing Wei
- Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University and Charlie Norwood VA Medical Center, Augusta, Georgia, USA
| | - Bing Dai
- Department of Nephrology, Second Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Zhiguo Mao
- Department of Nephrology, Second Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Changlin Mei
- Department of Nephrology, Second Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Zheng Dong
- Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University and Charlie Norwood VA Medical Center, Augusta, Georgia, USA
| |
Collapse
|
7
|
Xiao Q, Sun YY, Lu ZJ, Li SS, Su R, Chen WL, Ran LL, Zhang S, Deng K, Yu WZ, Chen W. Protective effects of safranal on diabetic retinopathy in human microvascular endothelial cells and related pathways analyzed with transcriptome sequencing. Front Endocrinol (Lausanne) 2022; 13:945446. [PMID: 36465659 PMCID: PMC9708741 DOI: 10.3389/fendo.2022.945446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 07/25/2022] [Indexed: 11/18/2022] Open
Abstract
AIM To determine the effect of safranal on diabetic retinopathy in vitro and its possible mechanisms. METHODS We used human retinal microvascular endothelial cells (HRMECs) to test the influence of safranal in vitro. High glucose damage was established and an safranal was tested at various concentrations for its potential to reduce cell viability using the MTT assay. We also employed apoptosis detection, cell cycle detection, a transwell test, and a tube formation assay to look into safranal's inhibitory effects on high glucose damage at various doses. Furthermore, mRNA transcriptome sequencing was performed. mRNA expression levels in a high glucose damage model, a high glucose damage model treated with safranal, and a blank control were compared to find the possible signaling pathway. Western blotting was used to confirm the expressions of several molecules and the levels of phosphorylation in each for the newly discovered pathway. RESULTS Cell proliferation was inhibited under a high glucose condition but could be protected by safranal at different concentrations (P<0.001). Flow cytometry results suggested safranal also protected cells from apoptosis (P=0.006). A transwell test demonstrated reduced invasiveness of safranal-treated cells in a high glucose condition (P<0.001). In a tube formation investigation, there were noticeably more new branches in the high gloucose group compared to a high glucose treated with safranal group (P<0.001). In mRNA expression patterns on transcriptome sequencing, the MAPK signaling pathway showed an expression ratio. With western blotting, the phosphorylation level of p38-AKT was elevated under a high glucose condition but could be inhibited by safranal. The expression of molecules associated with cell adhesion, including E-cadherin, N-cadherin, Snail, Twist, and fibronectin also changed significantly after safranal treatment under a high glucose condition. CONCLUSION Safranal can protect diabetic retinopathy in vitro, and the p38-AKT signaling pathway was found to be involved in the pathogenesis of diabetic retinopathy and could be inhibited by safranal. This pathway may play a role by influencing cell migration and adhesion.
Collapse
Affiliation(s)
- Qin Xiao
- Department of Ophthalmology, Affiliated Hospital of Inner Mongolia University for Nationalities, Tongliao, China
- *Correspondence: Qin Xiao,
| | - Yao-Yao Sun
- Department of Ophthalmology, Peking University People’s Hospital, Beijing, China
- Eye diseases and Optometry Institute, Beijing, China
- Beijing Key Laboratory of Diagnosis and Therapy of Retinal and Choroid Diseases, Beijing, China
- College of Optometry, Peking University Health science center, Beijing, China
| | - Zhan-Jun Lu
- Department of Ophthalmology, Affiliated Hospital of Inner Mongolia University for Nationalities, Tongliao, China
| | - Shan-shan Li
- Department of Ophthalmology, Affiliated Hospital of Inner Mongolia University for Nationalities, Tongliao, China
| | - Riguga Su
- College of Clinical (Mongolian) Medicine, Inner Mongolia University for Nationalities, Tongliao, China
| | - Wen-Lin Chen
- College of Clinical (Mongolian) Medicine, Inner Mongolia University for Nationalities, Tongliao, China
| | - Lin-Lin Ran
- College of Clinical (Mongolian) Medicine, Inner Mongolia University for Nationalities, Tongliao, China
| | - Surina Zhang
- Department of Hematology, Affiliated Hospital of Inner Mongolia University for Nationalities, Tongliao, China
| | - Kaixin Deng
- Department of Ophthalmology, Beijing Jishuitan Hospital, Beijing, China
| | - Wen-Zhen Yu
- Department of Ophthalmology, Peking University People’s Hospital, Beijing, China
- Eye diseases and Optometry Institute, Beijing, China
- Beijing Key Laboratory of Diagnosis and Therapy of Retinal and Choroid Diseases, Beijing, China
- College of Optometry, Peking University Health science center, Beijing, China
| | - Wenqian Chen
- Department of Ophthalmology, Peking University People’s Hospital, Beijing, China
- Eye diseases and Optometry Institute, Beijing, China
- Beijing Key Laboratory of Diagnosis and Therapy of Retinal and Choroid Diseases, Beijing, China
- College of Optometry, Peking University Health science center, Beijing, China
| |
Collapse
|
8
|
Özgümüş T, Sulaieva O, Jessen LE, Jain R, Falhammar H, Nyström T, Catrina SB, Jörneskog G, Groop L, Eliasson M, Eliasson B, Brismar K, Stokowy T, Nilsson PM, Lyssenko V. Reduced expression of OXPHOS and DNA damage genes is linked to protection from microvascular complications in long-term type 1 diabetes: the PROLONG study. Sci Rep 2021; 11:20735. [PMID: 34671071 PMCID: PMC8528906 DOI: 10.1038/s41598-021-00183-z] [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: 04/09/2021] [Accepted: 09/22/2021] [Indexed: 12/13/2022] Open
Abstract
Type 1 diabetes is a chronic autoimmune disease requiring insulin treatment for survival. Prolonged duration of type 1 diabetes is associated with increased risk of microvascular complications. Although chronic hyperglycemia and diabetes duration have been considered as the major risk factors for vascular complications, this is not universally seen among all patients. Persons with long-term type 1 diabetes who have remained largely free from vascular complications constitute an ideal group for investigation of natural defense mechanisms against prolonged exposure of diabetes. Transcriptomic signatures obtained from RNA sequencing of the peripheral blood cells were analyzed in non-progressors with more than 30 years of diabetes duration and compared to the patients who progressed to microvascular complications within a shorter duration of diabetes. Analyses revealed that non-progressors demonstrated a reduction in expression of the oxidative phosphorylation (OXPHOS) genes, which were positively correlated with the expression of DNA repair enzymes, namely genes involved in base excision repair (BER) machinery. Reduced expression of OXPHOS and BER genes was linked to decrease in expression of inflammation-related genes, higher glucose disposal rate and reduced measures of hepatic fatty liver. Results from the present study indicate that at transcriptomic level reduction in OXPHOS, DNA repair and inflammation-related genes is linked to better insulin sensitivity and protection against microvascular complications in persons with long-term type 1 diabetes.
Collapse
Affiliation(s)
- Türküler Özgümüş
- grid.7914.b0000 0004 1936 7443Department of Clinical Science, Center for Diabetes Research, University of Bergen, 5032 Bergen, Norway
| | | | - Leon Eyrich Jessen
- grid.5170.30000 0001 2181 8870Section for Bioinformatics, Department of Health Technology, Technical University of Denmark, Lyngby, Denmark
| | - Ruchi Jain
- grid.4514.40000 0001 0930 2361Department of Clinical Sciences/Genomics, Diabetes and Endocrinology, Lund University Diabetes Centre, 205 02 Malmö, Sweden
| | - Henrik Falhammar
- grid.4714.60000 0004 1937 0626Department of Molecular Medicine and Surgery, Karolinska Institute, Stockholm, Sweden ,grid.24381.3c0000 0000 9241 5705Department of Endocrinology, Metabolism and Diabetes, Karolinska University Hospital, Stockholm, Sweden
| | - Thomas Nyström
- Unit for Diabetes Research, Division of Internal Medicine, Department of Clinical Science and Education, Karolinska Institute, South Hospital, Stockholm, Sweden
| | - Sergiu-Bogdan Catrina
- grid.4714.60000 0004 1937 0626Department of Molecular Medicine and Surgery, Karolinska Institute, Stockholm, Sweden ,grid.24381.3c0000 0000 9241 5705Department of Endocrinology, Metabolism and Diabetes, Karolinska University Hospital, Stockholm, Sweden ,Center for Diabetes, Academic Specialist Centrum, Stockholm, Sweden
| | - Gun Jörneskog
- Division of Internal Medicine, Department of Clinical Sciences, Karolinska Institute, Danderyd University Hospital, Stockholm, Sweden
| | - Leif Groop
- grid.4514.40000 0001 0930 2361Department of Clinical Sciences/Genomics, Diabetes and Endocrinology, Lund University Diabetes Centre, 205 02 Malmö, Sweden ,grid.7737.40000 0004 0410 2071Institute for Molecular Medicine Finland FIMM, University of Helsinki, Helsinki, Finland
| | - Mats Eliasson
- grid.12650.300000 0001 1034 3451Sunderby Research Unit, Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
| | - Björn Eliasson
- grid.8761.80000 0000 9919 9582Department of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Kerstin Brismar
- grid.4714.60000 0004 1937 0626Department of Molecular Medicine and Surgery, Karolinska Institute, Stockholm, Sweden
| | - Tomasz Stokowy
- grid.7914.b0000 0004 1936 7443Department of Clinical Science, University of Bergen, 5021 Bergen, Norway
| | - Peter M. Nilsson
- grid.4514.40000 0001 0930 2361Department of Clinical Sciences/Genomics, Diabetes and Endocrinology, Lund University Diabetes Centre, 205 02 Malmö, Sweden
| | - Valeriya Lyssenko
- grid.7914.b0000 0004 1936 7443Department of Clinical Science, Center for Diabetes Research, University of Bergen, 5032 Bergen, Norway ,grid.4514.40000 0001 0930 2361Department of Clinical Sciences/Genomics, Diabetes and Endocrinology, Lund University Diabetes Centre, 205 02 Malmö, Sweden
| |
Collapse
|
9
|
Normalizing HIF-1α Signaling Improves Cellular Glucose Metabolism and Blocks the Pathological Pathways of Hyperglycemic Damage. Biomedicines 2021; 9:biomedicines9091139. [PMID: 34572324 PMCID: PMC8471680 DOI: 10.3390/biomedicines9091139] [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: 07/28/2021] [Revised: 08/27/2021] [Accepted: 08/31/2021] [Indexed: 12/26/2022] Open
Abstract
Intracellular metabolism of excess glucose induces mitochondrial dysfunction and diversion of glycolytic intermediates into branch pathways, leading to cell injury and inflammation. Hyperglycemia-driven overproduction of mitochondrial superoxide was thought to be the initiator of these biochemical changes, but accumulating evidence indicates that mitochondrial superoxide generation is dispensable for diabetic complications development. Here we tested the hypothesis that hypoxia inducible factor (HIF)-1α and related bioenergetic changes (Warburg effect) play an initiating role in glucotoxicity. By using human endothelial cells and macrophages, we demonstrate that high glucose (HG) induces HIF-1α activity and a switch from oxidative metabolism to glycolysis and its principal branches. HIF1-α silencing, the carbonyl-trapping and anti-glycating agent ʟ-carnosine, and the glyoxalase-1 inducer trans-resveratrol reversed HG-induced bioenergetics/biochemical changes and endothelial-monocyte cell inflammation, pointing to methylglyoxal (MGO) as the non-hypoxic stimulus for HIF1-α induction. Consistently, MGO mimicked the effects of HG on HIF-1α induction and was able to induce a switch from oxidative metabolism to glycolysis. Mechanistically, methylglyoxal causes HIF1-α stabilization by inhibiting prolyl 4-hydroxylase domain 2 enzyme activity through post-translational glycation. These findings introduce a paradigm shift in the pathogenesis and prevention of diabetic complications by identifying HIF-1α as essential mediator of glucotoxicity, targetable with carbonyl-trapping agents and glyoxalase-1 inducers.
Collapse
|
10
|
Liu YH, Guo C, Sun YQ, Li Q. Polymorphisms in HIF-1a gene are not associated with diabetic retinopathy in China. World J Diabetes 2021; 12:1304-1311. [PMID: 34512895 PMCID: PMC8394233 DOI: 10.4239/wjd.v12.i8.1304] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 04/09/2021] [Accepted: 07/12/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND It has been reported that vascular endothelial growth factor (VEGF) is a susceptibility gene for both type 2 diabetes mellitus (T2DM) and diabetic retinopathy (DR). In response to hypoxia, VEGF mRNA levels are increased, which is mainly mediated by the binding of hypoxia-inducible factor-1 (HIF-1) and hypoxia response element upstream of the transcriptional start site of VEGF. Therefore, HIF-1a is supposed to be involved in pathology of DR.
AIM To investigate whether the polymorphisms in HIF-1a gene are associated with DR.
METHODS Two hundred and ninety-nine type 2 diabetic patients (128 males and 171 females) and 144 healthy volunteers were recruited. Mean age was 56.04 ± 21.05 years. According to the results of fundus fluorescein angiography and examination of ophthalmoscopy, patients were divided into two groups, DNR group (diabetes without retinopathy) and DR group (diabetes with retinopathy). There are 150 cases in DNR group and 149 cases in DR group. Two single nucleotide polymorphisms (SNP) of the HIF-1a gene were tested using matrix-assisted laser desorption/Ionization time of flight mass spectrometry. The frequency of genotypes and alleles, and odds ratio were measured.
RESULTS The mean age of the cases with diabetes was 55.84 ± 3.66 years, the mean age of the cases with DR was 55.97 ± 4.66 years and that of controls was 56.32 ± 4.70 years. Two variations were found in 76 patients. Rs11549465 is the change of C-T base, rs11549467 is the change of G-A base. The rs11549467 G/A genotype was 5.33% in diabetes and 6.04% in DR patients, respectively. The rs11549465 C/T genotype was 10% and 12.75% in patients with diabetes and DR. The rs11549467 A allele frequencies and rs11549465 T frequencies was similar to that of controls. Paired SNP linkage disequilibrium analysis indicated that rs11549467 was in linkage disequilibrium with rs11549465. Haplotype association analysis denoted that the haplotype association exhibited similar distribution in the patients compared to the normal controls.
CONCLUSION This study suggests that there is no relationship between the genetic variations of HIF1a and diabetes or DR.
Collapse
Affiliation(s)
- Yue-Hong Liu
- Department of Endocrinology, Hainan Cancer Hospital, Haikou 570312, Hainan Province, China
| | - Chang Guo
- Department of Endocrinology, Shenzhen University General Hospital, Shenzhen 518055,Guangdong Province, China
| | - Yi-Qiong Sun
- Department of Endocrinology, Shenzhen University General Hospital, Shenzhen 518055,Guangdong Province, China
| | - Qiang Li
- Department of Endocrinology, Shenzhen University General Hospital, Shenzhen 518055,Guangdong Province, China
| |
Collapse
|
11
|
Abstract
The uncontrolled growth of blood vessels is a major pathological factor in human eye diseases that can result in blindness. This effect is termed ocular neovascularization and is seen in diabetic retinopathy, age-related macular degeneration, glaucoma and retinopathy of prematurity. Current treatments for these diseases include laser photocoagulation, topical injection of corticosteroids, intravitreal injection of anti-vascular endothelial growth factor (anti-VEGF) agents and vitreoretinal surgery. Although strategies to inhibit VEGF have proved to be dramatically successful in some clinical studies, there remains the possibility of significant adverse effects regarding the blockade of crucial physiological roles of VEGF and the invasive nature of the treatments. Moreover, it is evident that other pro-angiogenic factors also play important roles in the development of these diseases, as seen in cases in which anti-VEGF therapies have failed. Therefore, new types of effective treatments are required. In this review, we discuss a promising strategy for the treatment of ocular neovascular diseases, i.e., the inhibition of hypoxia-inducible factor (HIF), a master regulator of angiogenesis. We also summarize promising recently investigated HIF inhibitors as treatments for ocular diseases. This review will facilitate more comprehensive approaches to understanding the protective aspects of HIF inhibition in the prevention of ocular diseases.
Collapse
|
12
|
Abstract
Hypoxia-inducible factors (HIFs) are the key regulators of oxygen homeostasis in response to hypoxia. In diabetes, multiple tissues are hypoxic but adaptive responses to hypoxia are impaired due to insufficient activation of HIF signalling, which results from inhibition of HIF-1α stability and function due to hyperglycaemia and elevated fatty acid levels. In this review, we will summarise and discuss current findings about the regulation of HIF signalling in diabetes and the pathogenic roles of hypoxia and dysregulated HIF signalling in the development of diabetes and its complications. The therapeutic potential of targeting HIF signalling for the prevention and treatment of diabetes and related complications is also discussed.
Collapse
Affiliation(s)
- Sergiu-Bogdan Catrina
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden.
- Department of Endocrinology and Diabetes, Karolinska University Hospital, Stockholm, Sweden.
- Center for Diabetes, Academic Specialist Centrum, Stockholm, Sweden.
| | - Xiaowei Zheng
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden.
| |
Collapse
|
13
|
Gao W, He R, Ren J, Zhang W, Wang K, Zhu L, Liang T. Exosomal HMGB1 derived from hypoxia-conditioned bone marrow mesenchymal stem cells increases angiogenesis via the JNK/HIF-1α pathway. FEBS Open Bio 2021; 11:1364-1373. [PMID: 33711197 PMCID: PMC8091582 DOI: 10.1002/2211-5463.13142] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 02/27/2021] [Accepted: 03/11/2021] [Indexed: 02/06/2023] Open
Abstract
Mesenchymal stem cells (MSCs) have been described to induce angiogenesis in various tissues and have been used for the development of novel cell‐based therapies. Increasing evidence suggests that MSCs execute their paracrine function via the secretion of exosomes, especially under hypoxic conditions. However, the mechanisms by which MSC‐derived exosomes secreted under hypoxia enhance angiogenesis still remain unclear. To study exosome physiology under hypoxic or normoxic conditions, we isolated exosomes from bone marrow mesenchymal stem cells (BMSCs). Furthermore, we detected the uptake of exosomes by human umbilical vein endothelial cells (HUVECs) by immunofluorescence staining. In addition, we determined the effects of exosomes on cell viability, migration and tube formation in HUVECs by Cell Counting Kit‐8, migration and tube formation assays, respectively. We examined the expression of key proteins related to exosome‐induced angiogenesis by BMSCs cultured under hypoxic conditions by western blot. Exosomes released by BMSCs cultured under hypoxic conditions enhanced cell proliferation, migration and angiogenesis of HUVECs. Hypoxia induced the expression of high mobility group box 1 protein (HMGB1) in BMSC‐derived exosomes, and silencing of HMGB1 abolished the angiogenic effect in HUVECs. Furthermore, exosomal HMGB1 activated the JNK signaling pathway and induced hypoxia‐inducible factor‐1α/vascular endothelial growth factor expression, consequently enhancing angiogenesis in HUVECs. Our data reveal that exosomal HMGB1 promotes angiogenesis via JNK/hypoxia‐inducible factor‐1α signaling. Therefore, BMSC exosomes derived under hypoxia may have potential for development of novel treatment strategies for angiogenesis‐related diseases.
Collapse
Affiliation(s)
- Wenling Gao
- Department of Orthodontics, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Ronghan He
- Department of Orthopaedic Surgery, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Jianhua Ren
- Department of Orthopaedic Surgery, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Wenhui Zhang
- Department of Orthopaedic Surgery, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Kun Wang
- Department of Orthopaedic Surgery, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Lei Zhu
- Department of Plastic and Reconstructive Surgery, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Tangzhao Liang
- Department of Orthopaedic Surgery, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| |
Collapse
|
14
|
p38 promoted retinal micro-angiogenesis through up-regulated RUNX1 expression in diabetic retinopathy. Biosci Rep 2021; 40:222735. [PMID: 32319515 PMCID: PMC7201564 DOI: 10.1042/bsr20193256] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 04/17/2020] [Accepted: 04/21/2020] [Indexed: 12/28/2022] Open
Abstract
Diabetic retinopathy (DR) is the most common microvascular complication of diabetes and is characterized by visible microvascular alterations including retinal ischemia–reperfusion injury, inflammation, abnormal permeability, neovascularization and macular edema. Despite the available treatments, some patients present late in the course of the disease when treatment is more difficult. Hence, it is crucial that the new targets are found and utilized in the clinical therapy of DR. In the present study, we constructed a DR animal model and a model in HRMECs to investigate the relationship between p38 and RUNX1 in retinal micro-angiogenesis in diabetic retinopathy. We found that p38 could promote retinal micro-angiogenesis by up-regulating RUNX1 expression in diabetic retinopathy. This suggested that the p38/ RUNX1 pathway could become a new retinal micro-angiogenesis target in DR treatment.
Collapse
|
15
|
Abstract
Hypoxia can be defined as a relative deficiency in the amount of oxygen reaching the tissues. Hypoxia-inducible factors (HIFs) are critical regulators of the mammalian response to hypoxia. In normal circumstances, HIF-1α protein turnover is rapid, and hyperglycemia further destabilizes the protein. In addition to their role in diabetes pathogenesis, HIFs are implicated in development of the microvascular and macrovascular complications of diabetes. Improving glucose control in people with diabetes increases HIF-1α protein and has wide-ranging benefits, some of which are at least partially mediated by HIF-1α. Nevertheless, most strategies to improve diabetes or its complications via regulation of HIF-1α have not currently proven to be clinically useful. The intersection of HIF biology with diabetes is a complex area in which many further questions remain, especially regarding the well-conducted studies clearly describing discrepant effects of different methods of increasing HIF-1α, even within the same tissues. This Review presents a brief overview of HIFs; discusses the range of evidence implicating HIFs in β cell dysfunction, diabetes pathogenesis, and diabetes complications; and examines the differing outcomes of HIF-targeting approaches in these conditions.
Collapse
Affiliation(s)
- Jenny E Gunton
- Centre for Diabetes, Obesity and Endocrinology, Westmead Institute for Medical Research, Westmead, New South Wales, Australia.,Westmead Hospital, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia.,Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia
| |
Collapse
|
16
|
Ekberg NR, Eliasson S, Li YW, Zheng X, Chatzidionysiou K, Falhammar H, Gu HF, Catrina SB. Corrigendum to "Protective Effect of the HIF-1A Pro582Ser Polymorphism on Severe Diabetic Retinopathy". J Diabetes Res 2021; 2021:9827150. [PMID: 34124271 PMCID: PMC8172312 DOI: 10.1155/2021/9827150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Accepted: 05/08/2021] [Indexed: 11/17/2022] Open
Abstract
[This corrects the article DOI: 10.1155/2019/2936962.].
Collapse
Affiliation(s)
- Neda Rajamand Ekberg
- Department of Endocrinology Metabolism and Diabetes, Karolinska University Hospital, Stockholm, Sweden
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- Centrum for Diabetes, Academic Specialist Centrum, Stockholm, Sweden
| | - Sofie Eliasson
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Young Wen Li
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- Department of Pharmacology, Guilin Medical University, Guilin, China
| | - Xiaowei Zheng
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Katerina Chatzidionysiou
- Department of Endocrinology Metabolism and Diabetes, Karolinska University Hospital, Stockholm, Sweden
| | - Henrik Falhammar
- Department of Endocrinology Metabolism and Diabetes, Karolinska University Hospital, Stockholm, Sweden
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Harvest F. Gu
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Sergiu-Bogdan Catrina
- Department of Endocrinology Metabolism and Diabetes, Karolinska University Hospital, Stockholm, Sweden
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- Centrum for Diabetes, Academic Specialist Centrum, Stockholm, Sweden
| |
Collapse
|
17
|
Yumnamcha T, Guerra M, Singh LP, Ibrahim AS. Metabolic Dysregulation and Neurovascular Dysfunction in Diabetic Retinopathy. Antioxidants (Basel) 2020; 9:E1244. [PMID: 33302369 PMCID: PMC7762582 DOI: 10.3390/antiox9121244] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 11/29/2020] [Accepted: 12/01/2020] [Indexed: 12/11/2022] Open
Abstract
Diabetic retinopathy is a major cause of ocular complications in patients with type 1 and type 2 diabetes in developed countries. Due to the continued increase in the number of people with obesity and diabetes in the United States of America and globally, the incidence of diabetic retinopathy is expected to increase significantly in the coming years. Diabetic retinopathy is widely accepted as a combination of neurodegenerative and microvascular changes; however, which change occurs first is not yet understood. Although the pathogenesis of diabetic retinopathy is very complex, regulated by numerous signaling pathways and cellular processes, maintaining glucose homeostasis is still an essential component for normal physiological functioning of retinal cells. The maintenance of glucose homeostasis is finely regulated by coordinated interplay between glycolysis, Krebs cycle, and oxidative phosphorylation. Glycolysis is the most conserved metabolic pathway in biology and is tightly regulated to maintain a steady-state concentration of glycolytic intermediates; this regulation is called scheduled or regulated glycolysis. However, an abnormal increase in glycolytic flux generates large amounts of intermediate metabolites that can be shunted into different damaging pathways including the polyol pathway, hexosamine pathway, diacylglycerol-dependent activation of the protein kinase C pathway, and Amadori/advanced glycation end products (AGEs) pathway. In addition, disrupting the balance between glycolysis and oxidative phosphorylation leads to other biochemical and molecular changes observed in diabetic retinopathy including endoplasmic reticulum-mitochondria miscommunication and mitophagy dysregulation. This review will focus on how dysregulation of glycolysis contributes to diabetic retinopathy.
Collapse
Affiliation(s)
- Thangal Yumnamcha
- Department of Ophthalmology, Visual and Anatomical Sciences, School of Medicine, Wayne State University, Detroit, MI 48201, USA; (M.G.); (L.P.S.)
| | - Michael Guerra
- Department of Ophthalmology, Visual and Anatomical Sciences, School of Medicine, Wayne State University, Detroit, MI 48201, USA; (M.G.); (L.P.S.)
| | - Lalit Pukhrambam Singh
- Department of Ophthalmology, Visual and Anatomical Sciences, School of Medicine, Wayne State University, Detroit, MI 48201, USA; (M.G.); (L.P.S.)
| | - Ahmed S. Ibrahim
- Department of Ophthalmology, Visual and Anatomical Sciences, School of Medicine, Wayne State University, Detroit, MI 48201, USA; (M.G.); (L.P.S.)
- Department of Pharmacology, School of Medicine, Wayne State University, Detroit, MI 48201, USA
- Department of Biochemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| |
Collapse
|
18
|
Prediction of potential deleterious nonsynonymous single nucleotide polymorphisms of HIF1A gene: A computational approach. Comput Biol Chem 2020; 88:107354. [PMID: 32801061 DOI: 10.1016/j.compbiolchem.2020.107354] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 06/21/2020] [Accepted: 07/29/2020] [Indexed: 12/23/2022]
Abstract
Hypoxia-inducible factor-1α (HIF-1α) is the oxygen sensitive subunit of HIF1 transcription factor. Its variations is associated with several diseases including different type of cancer, cardiovascular diseases, and liver and kidney failure. Despite all the investigations carried out on the single nucleotide polymorphisms (SNPs) of HIF1A gene and diseases, there are many uncharacterized nonsynonymous SNPs of this gene, which might have damaging effect on the protein function. Therefore, it is worthwhile to analyze these potential damaging nsSNPs, using different bioinformatics tools before launching large population studies. The objective of the present study was to predict the possible deleterious nsSNPs of HIF1A gene and their effects on the function and structure of HIF-1alpha protein, using different bioinformatics tools. Various prediction servers were used including SIFT, PROVEAN, PolyPhen-2, PANTHER, phD-SNP, SNP-GO, I-Mutant 2.0, Fathmm, SNPeffect 4.0, Mutation taster, CADD and RAMPAGE in a stepwise approach. After analyzing all 454 missense variants of the HIF1A gene using the abovementioned tools, we reported 11 variants with a significant impact on the function or structure of HIF-1α protein. Furthermore, among these variants only S274 P was predicted as stability enhancing variant with effect on protein function by increasing its stability. Although there are many advantages for computational analysis, the results has to be confirmed by experimental investigations.
Collapse
|
19
|
Ren H, Luo JQ, Gao YC, Chen MY, Chen XP, Zhou HH, Jiang Y, Zhang W. Genetic association of hypoxia inducible factor 1-alpha ( HIF1A) Pro582Ser polymorphism with risk of diabetes and diabetic complications. Aging (Albany NY) 2020; 12:12783-12798. [PMID: 32658866 PMCID: PMC7377833 DOI: 10.18632/aging.103213] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 04/17/2020] [Indexed: 04/11/2023]
Abstract
Diabetes is an age-related chronic disease associated with a number of complications, emerging as one of the major causes of morbidity and mortality worldwide. Several studies indicated that hypoxia-inducible factor 1-alpha (HIF1A) genetic polymorphisms may be associated with diabetes and diabetic complications. However, this association remains ambiguous. Thus, we performed a meta-analysis to provide more precise conclusion on this issue. Odds ratios (OR) with corresponding 95% confidence intervals (CI) were applied to assess the strength of the relationships. There was a protective association between HIF1A Pro582Ser polymorphism and diabetes under the heterozygous genetic model (OR = 0.70, 95% CI = 0.55-0.91; P = 0.007). Similar associations were observed in diabetic complications risk under the allelic (OR = 0.69, 95% CI = 0.57-0.83; P < 0.001), homozygous (OR = 0.51, 95% CI = 0.30-0.87; P = 0.014), recessive (OR = 0.73, 95% CI = 0.59-0.90; P = 0.004) and dominant (OR = 0.40, 95% CI = 0.25-0.65; P < 0.001) genetic models. No effects of the HIF1A Ala588Thr polymorphism were found in risk of diabetes and diabetic complications. Taken together, these findings revealed the protective effect of HIF1A Pro582Ser polymorphism against diabetes and diabetic complications.
Collapse
Affiliation(s)
- Huan Ren
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, P.R. China
- Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, Changsha, P.R. China
- Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Changsha, P.R. China
- National Clinical Research Center for Geriatric Disorders, Changsha, P.R. China
| | - Jian-Quan Luo
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, P.R. China
| | - Yong-Chao Gao
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, P.R. China
- Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, Changsha, P.R. China
- Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Changsha, P.R. China
- National Clinical Research Center for Geriatric Disorders, Changsha, P.R. China
| | - Man-Yun Chen
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, P.R. China
- Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, Changsha, P.R. China
- Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Changsha, P.R. China
- National Clinical Research Center for Geriatric Disorders, Changsha, P.R. China
| | - Xiao-Ping Chen
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, P.R. China
- Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, Changsha, P.R. China
- Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Changsha, P.R. China
- National Clinical Research Center for Geriatric Disorders, Changsha, P.R. China
| | - Hong-Hao Zhou
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, P.R. China
- Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, Changsha, P.R. China
- Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Changsha, P.R. China
- National Clinical Research Center for Geriatric Disorders, Changsha, P.R. China
| | - Ying Jiang
- Department of Cardiothoracic Surgery, Xiangya Hospital, Central South University, Changsha, P.R. China
| | - Wei Zhang
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, P.R. China
- Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, Changsha, P.R. China
- Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Changsha, P.R. China
- National Clinical Research Center for Geriatric Disorders, Changsha, P.R. China
| |
Collapse
|