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Chen LY, Cheng HL, Liao CK, Kuan YH, Liang TJ, Tseng TJ, Lin HC. Luteolin improves nephropathy in hyperglycemic rats through anti-oxidant, anti-inflammatory, and anti-apoptotic mechanisms. J Funct Foods 2023. [DOI: 10.1016/j.jff.2023.105461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2023] Open
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Sun T, Xu W, Wang J, Wang T, Wang S, Liu K, Liu J. Saxagliptin alleviates erectile dysfunction through increasing stromal cell-derived factor-1 in diabetes mellitus. Andrology 2023; 11:295-306. [PMID: 36113503 DOI: 10.1111/andr.13296] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Revised: 08/29/2022] [Accepted: 09/13/2022] [Indexed: 01/18/2023]
Abstract
BACKGROUND Diabetes mellitus-induced erectile dysfunction (DMED) is one of the complications of diabetes and has a poor response to phosphodiesterase type 5 inhibitor, the first-line treatment for ED. Saxagliptin (Sax), a dipeptidyl peptidase-4 inhibitor (DPP-4i), has been officially used in the treatment of type 2 diabetes. Stromal cell-derived factor-1 (SDF-1) is one of the important substrates of DPP-4, and has been proven to be beneficial for several DM complications. However, it is unknown whether Sax contributes to the management of DMED. OBJECTIVES To explore the effect and possible underlying mechanisms of Sax in the treatment of DMED. METHODS The model of DM was established by intraperitoneal injection of streptozotocin. All rats were divided into three groups (n = 8 per group): control group, DMED group and DMED+Sax group. In cellular experiments, the corpus cavernosum smooth muscle cells (CCSMCs) were exposed to high glucose (HG), and treated with Sax and AMD3100 (SDF-1 receptor inhibitor). The penile tissue and CCSMCs were harvested for detection. RESULTS We found that erectile function was impaired in DMED rats compared with the control group, which was partially relieved by Sax. Decreased expression of DPP-4 and increased level of SDF-1 were also observed in DMED+Sax group, together with elevation of PI3K/AKT pathway and inhibition of endothelial dysfunction, oxidative stress and apoptosis in corpus cavernosum. Moreover, Sax could also regulate oxidative stress and apoptosis in CCSMCs under HG condition, which was blocked in part by AMD3100. CONCLUSION Sax could alleviate DMED through increasing SDF-1 and PI3K/AKT pathway, in company with moderation of endothelial dysfunction, oxidative stress and apoptosis. Our findings indicated that DPP-4 is may be beneficial to the management of DMED.
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Affiliation(s)
- Taotao Sun
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wenchao Xu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jiaxin Wang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Tao Wang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shaogang Wang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Kang Liu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jihong Liu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Ni Y, Chen Y, Jiang X, Pu T, Zhang L, Li S, Hu L, Bai B, Hu T, Yu L, Yang Y. Transplantation of Human Amniotic Mesenchymal Stem Cells Up-Regulates Angiogenic Factor Expression to Attenuate Diabetic Kidney Disease in Rats. Diabetes Metab Syndr Obes 2023; 16:331-343. [PMID: 36785675 PMCID: PMC9921454 DOI: 10.2147/dmso.s371752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 01/10/2023] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND AND AIMS Diabetic kidney disease (DKD) is a prevalent and intractable microvascular complication of diabetes mellitus (DM), the process of which is closely related to abnormal expression of angiogenesis-regulating factors (ARFs). Stem cell transplantation might be a novel strategy for treating DKD. This study aims to explore the effect of transplantation of human amniotic mesenchymal stem cells (hAMSCs) on renal microangiopathy in a type 1 DKD rat model (T1DRM). METHODS Seventy-two rats were randomly divided into three groups, including normal control group, DKD group, and hAMSCs transplantation group. T1DRM was established using a rat tail vein injection of streptozotocin (STZ) (55 mg/kg). hAMSCs were obtained from placental amniotic membranes during cesarean delivery and transplanted at 3 and 4 weeks through penile veins. At 6, 8, and 12 weeks following transplantation, blood glucose levels, renal function, pathological kidney alterations, and the expressions of ARFs' mRNA and protein were analyzed. RESULTS In T1DRM, transplanted hAMSCs that were homed at the injured site of kidneys increased ARFs' expression and decreased blood glucose levels. Compared to the DKD group, the levels of 24-h urinary protein, serum creatinine, urea, and kidney injury molecule-1 (KIM-1) were reduced in hAMSCs transplantation group. In terms of renal pathology such as the degree of basement membrane thickening, hAMSCs transplantation was also less severe than the DKD group, thereby alleviating kidney injury. CONCLUSION hAMSCs transplantation might ameliorate STZ-induced chronic kidney injury through increasing ARFs' expression in kidneys and lowering blood glucose levels.
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Affiliation(s)
- Yu Ni
- Department of Nephrology, Affiliated Hospital of Zunyi Medical University, Zunyi, 563003, People’s Republic of China
| | - Yuqin Chen
- Key Laboratory of Cell Engineering of Guizhou Province, Zunyi City, Affiliated Hospital of Zunyi Medical University, Zunyi, 563003, People’s Republic of China
| | - Xuheng Jiang
- Department of Emergency, Affiliated Hospital of Zunyi Medical University, Zunyi, 563003, People’s Republic of China
| | - Tao Pu
- Department of Nephrology, Affiliated Hospital of Zunyi Medical University, Zunyi, 563003, People’s Republic of China
| | - Ling Zhang
- Zhuhai Campus of Zunyi Medical University, Zhuhai, 519041, People’s Republic of China
| | - Shaobin Li
- Key Laboratory of Cell Engineering of Guizhou Province, Zunyi City, Affiliated Hospital of Zunyi Medical University, Zunyi, 563003, People’s Republic of China
| | - Linhong Hu
- Department of Nephrology, Affiliated Hospital of Zunyi Medical University, Zunyi, 563003, People’s Republic of China
| | - Bing Bai
- Department of Nephrology, Affiliated Hospital of Zunyi Medical University, Zunyi, 563003, People’s Republic of China
| | - Tingting Hu
- Department of Nephrology, Affiliated Hospital of Zunyi Medical University, Zunyi, 563003, People’s Republic of China
| | - Limei Yu
- Key Laboratory of Cell Engineering of Guizhou Province, Zunyi City, Affiliated Hospital of Zunyi Medical University, Zunyi, 563003, People’s Republic of China
- Correspondence: Limei Yu, Department of Nephrology, Affiliated Hospital of Zunyi Medical University, Zunyi, 563003, People’s Republic of China, Email
| | - Yibin Yang
- Department of Nephrology, Affiliated Hospital of Zunyi Medical University, Zunyi, 563003, People’s Republic of China
- Key Laboratory of Cell Engineering of Guizhou Province, Zunyi City, Affiliated Hospital of Zunyi Medical University, Zunyi, 563003, People’s Republic of China
- Yibin Yang, Key Laboratory of Cell Engineering of Guizhou Province, Zunyi City, Affiliated Hospital of Zunyi Medical University, Zunyi, 563003, People’s Republic of China, Email
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Luo XM, Yan C, Feng YM. Nanomedicine for the treatment of diabetes-associated cardiovascular diseases and fibrosis. Adv Drug Deliv Rev 2021; 172:234-248. [PMID: 33417981 DOI: 10.1016/j.addr.2021.01.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 12/25/2020] [Accepted: 01/01/2021] [Indexed: 02/08/2023]
Abstract
Cardiomyopathy and fibrosis are the main causes of heart failure in diabetes patients. For therapeutic purposes, a delivery system is required to enhance antidiabetic drug efficacy and specifically target profibrotic pathways in cardiomyocytes. Nanoparticles (NPs) have distinct advantages, including biocompatibility, bioavailability, targeting efficiency, and minimal toxicity, which make them ideal for antidiabetic treatment. In this review, we overview the latest information on the pathogenesis of cardiomyopathy and fibrosis in diabetes patients. We summarize how NP applications improve insulin and liraglutide efficacy and their sustained release upon oral administration. We provide a comprehensive review of the results of NP clinical trials in diabetes patients and of animal studies investigating the effects of NP-mediated anti-fibrotic treatments. Collectively, the application of advanced NP delivery systems in the treatment of cardiomyopathy and fibrosis in diabetes patients is a promising and innovative therapeutic strategy.
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Song A, Jiang A, Xiong W, Zhang C. The Role of CXCL12 in Kidney Diseases: A Friend or Foe? KIDNEY DISEASES 2021; 7:176-185. [PMID: 34179113 DOI: 10.1159/000514913] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 01/28/2021] [Indexed: 12/25/2022]
Abstract
Background Chemokines are a family of proteins mainly mediating the homing and migration of various cells. The CXC chemokine CXCL12 is a member of low-weight-molecular chemokines. In the kidney, CXCL12 is pivotal for renal development and exerts a modulatory effect in kidney diseases under different etiologic settings by binding with CXC chemokine receptor 4 (CXCR4) or CXC chemokine receptor 7 (CXCR7). Besides, CXCL12 also exerts homeostasis influence in diverse physical conditions and various pathological situations. Thus, we conclude the complicated relationship between CXCL12 and kidney diseases in this review. Summary In renal development, CXCL12 contributes a lot to nephrogenesis and the formation of renal vasculature via correlating with CXCR4. CXCL12 also plays an essential role in renal recovery from acute kidney injury. However, the CXCL12/CXCR4 axis plays a dual regulatory role in the initiation and development of diabetic kidney disease as well as chronic allogeneic nephropathy after kidney transplantation through dialectical consideration. Additionally, the CXCL12/CXCR4 link is considered as a new risk factor for lupus nephritis and renal cell carcinoma. Key Messages Plenty of studies have presented the influence of CXCL12 and the relation with corresponding receptors in diverse biological and pathological statuses. Simultaneously, some drugs and antagonists targeting CXCL12/CXCR4 axis effectively treat various kidney diseases. However, more researches are needed to explore thorough influence and mechanisms, providing more cues for clinical treatments.
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Affiliation(s)
- Anni Song
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Anni Jiang
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wei Xiong
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chun Zhang
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Elekofehinti OO, Oyedokun VO, Iwaloye O, Lawal AO, Ejelonu OC. Momordica charantia silver nanoparticles modulate S OCS/JAK/STAT and P13K/Akt/PTEN signalling pathways in the kidney of streptozotocin-induced diabetic rats. J Diabetes Metab Disord 2021; 20:245-260. [PMID: 34178835 DOI: 10.1007/s40200-021-00739-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 01/10/2021] [Indexed: 12/23/2022]
Abstract
Objectives Diabetes nephropathy (DN) is one of the complications of diabetes mellitus (DM) marked by gradual progressive loss of renal function. SOCS/JAK/STAT and PI3K/Akt/PTEN signalling pathways are among the chain of interactions implicated in the onset, progression and pathology of DN. Momordica charantia (bitter melon) is often used in folk medicine as therapy for DM due to its hypoglycemic properties. This study was designed to evaluate M. charantia silver nanoparticles' therapeutic effect on DN-induced by streptozotocin (STZ) in Wistar rats. Methods The M. charantia nanoparticles used was synthesized using the filtrate from the plant methanolic extract added to 1 mM concentration of aqueous silver nitrate. DM was induced in Wistar rats by intraperitoneal injection of STZ (65 mg/kg). The animals' treatment groups were divided into; Diabetic control (65 mg/kg STZ), Control, and groups treated with silver nitrate (10 mg/kg), M. charantia nanoparticles (50 mg/kg), metformin (100 mg/kg), and plant extract (100 mg/kg). Treatment was terminated after 11 days. RT-PCR determined renal mRNA expression of Akt, PI3k, PTEN, TGF-β, JAK2, STAT3, STAT5, SOCS3, SOCS4 and glucokinase (GCK). Consequently, characterized compounds from M. charantia identified from literatures were docked with PI3K, JAK2 and TGF-β and STAT3 to retrieve potential hits. Results Oral administration of M. charantia nanoparticles (50 mg/kg) to STZ-induced diabetic untreated rats significantly ((p < 0.05) down-regulated the mRNA expression of Akt, PI3k, TGF-β, JAK2, STAT3 and upregulated the mRNA expression of PTEN, SOCS3 and SOCS4, thus establishing the role of M. charantia nanoparticles in alleviating DN in diabetic rats. Additionally, there was a significant up-regulation of glucose metabolizing gene (glucokinase) upon administering M. charantia nanoparticles. Molecular docking results showed 12 compounds from bitter melon with docking score ranging from -6.114 kcal/mol to -8.221 kcal/mol that are likely to exert anti-diabetic properties. Conclusion Observation drawn from this study suggests that M. charantia nanoparticles ameliorate DN through regulation of SOCS/JAK/STAT and PI3K/Akt/PTEN signalling pathways.
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Affiliation(s)
- Olusola Olalekan Elekofehinti
- Bioinformatics and Molecular Biology Unit, Department of Biochemistry, Federal University of Technology Akure, Akure, Ondo State Nigeria
| | - Victor Oluwatoyin Oyedokun
- Bioinformatics and Molecular Biology Unit, Department of Biochemistry, Federal University of Technology Akure, Akure, Ondo State Nigeria
| | - Opeyemi Iwaloye
- Bioinformatics and Molecular Biology Unit, Department of Biochemistry, Federal University of Technology Akure, Akure, Ondo State Nigeria
| | - Akeem Olalekan Lawal
- Bioinformatics and Molecular Biology Unit, Department of Biochemistry, Federal University of Technology Akure, Akure, Ondo State Nigeria
| | - Oluwamodupe Cecilia Ejelonu
- Biochemistry Programme, Department of Chemical Sciences, School of Sciences, Olusegun Agagu University of Science and Technology, Okitipupa, Ondo State Nigeria
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Gong X, Liu H, Wang S, Liang S, Wang G. Exosomes derived from SDF1‐overexpressing mesenchymal stem cells inhibit ischemic myocardial cell apoptosis and promote cardiac endothelial microvascular regeneration in mice with myocardial infarction. J Cell Physiol 2019; 234:13878-13893. [PMID: 30720220 DOI: 10.1002/jcp.28070] [Citation(s) in RCA: 94] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 12/14/2018] [Accepted: 12/18/2018] [Indexed: 01/23/2023]
Affiliation(s)
- Xu‐He Gong
- Department of Cardiology Beijing Friendship Hospital, Capital Medical University Beijing China
| | - Hui Liu
- Department of Cardiology State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College Beijing China
| | - Si‐Jia Wang
- Department of Emergency Beijing Friendship Hospital, Capital Medical University Beijing China
| | - Si‐Wen Liang
- Department of Cardiology Beijing Friendship Hospital, Capital Medical University Beijing China
| | - Guo‐Gan Wang
- Department of Cardiology State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College Beijing China
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Effect of Qufengtongluo Decoction on PI3K/Akt Signaling Pathway in the Kidney of Type 2 Diabetes Mellitus Rat (GK Rat) with Diabetic Nephropathy. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 2018:8421979. [PMID: 29552086 PMCID: PMC5820584 DOI: 10.1155/2018/8421979] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/09/2017] [Revised: 11/11/2017] [Accepted: 11/22/2017] [Indexed: 12/17/2022]
Abstract
Qufengtongluo (QFTL) decoction is an effective treatment for diabetic nephropathy (DN). However, the underlying molecular mechanism is still unclear. In this study, we try to investigate whether QFTL decoction acts via inhibiting PI3K/Akt signaling pathway. Twenty-four GK rats were randomly divided into 3 groups: blank group, sham-operated group, and QFTL group. After model establishment, rats in QFTL group were given QFTL decoction by gavage, while the rest were given pure water. During the 8-week intervention, 24 hr urinal protein was measured every 2-3 weeks. After intervention, kidneys were removed for pathological smear, quantitative real-time PCR, and western blotting to detect expression levels of p-PI3K, p-Akt, PTEN, TGF-β, PI3K mRNA, Akt mRNA, PTEN mRNA, and TGF-β mRNA. QFTL group showed a slighter degree of renal fibrosis in Masson and PASM staining and a greater reduction of 24 hr urinal protein than blank group. Compared to blank group, expression levels of p-PI3K, p-Akt, PI3K mRNA, and Akt mRNA were lower in QFTL group, while expression levels of PTEN and PTEN mRNA were higher. Besides, TGF-β was downregulated by QFTL decoction. In conclusion, this study suggests that QFTL decoction might inhibit PI3K/Akt signaling pathway via activating PTEN and inhibiting TGF-β.
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Dhanani KCH, Samson WJ, Edkins AL. Fibronectin is a stress responsive gene regulated by HSF1 in response to geldanamycin. Sci Rep 2017; 7:17617. [PMID: 29247221 PMCID: PMC5732156 DOI: 10.1038/s41598-017-18061-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Accepted: 12/02/2017] [Indexed: 01/16/2023] Open
Abstract
Fibronectin is an extracellular matrix glycoprotein with key roles in cell adhesion and migration. Hsp90 binds directly to fibronectin and Hsp90 depletion regulates fibronectin matrix stability. Where inhibition of Hsp90 with a C-terminal inhibitor, novobiocin, reduced the fibronectin matrix, treatment with an N-terminal inhibitor, geldanamycin, increased fibronectin levels. Geldanamycin treatment induced a stress response and a strong dose and time dependent increase in fibronectin mRNA via activation of the fibronectin promoter. Three putative heat shock elements (HSEs) were identified in the fibronectin promoter. Loss of two of these HSEs reduced both basal and geldanamycin-induced promoter activity, as did inhibition of the stress-responsive transcription factor HSF1. Binding of HSF1 to one of the putative HSE was confirmed by ChIP under basal conditions, and occupancy shown to increase with geldanamycin treatment. These data support the hypothesis that fibronectin is stress-responsive and a functional HSF1 target gene. COLA42 and LAMB3 mRNA levels were also increased with geldanamycin indicating that regulation of extracellular matrix (ECM) genes by HSF1 may be a wider phenomenon. Taken together, these data have implications for our understanding of ECM dynamics in stress-related diseases in which HSF1 is activated, and where the clinical application of N-terminal Hsp90 inhibitors is intended.
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Affiliation(s)
- Karim Colin Hassan Dhanani
- Biomedical Biotechnology Research Unit (BioBRU), Department of Biochemistry and Microbiology, Rhodes University, Grahamstown, 6140, South Africa
| | - William John Samson
- Biomedical Biotechnology Research Unit (BioBRU), Department of Biochemistry and Microbiology, Rhodes University, Grahamstown, 6140, South Africa
| | - Adrienne Lesley Edkins
- Biomedical Biotechnology Research Unit (BioBRU), Department of Biochemistry and Microbiology, Rhodes University, Grahamstown, 6140, South Africa.
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Li F, Li L, Hao J, Liu S, Duan H. Src Homology 2 Domain-Containing Inositol 5'-Phosphatase Ameliorates High Glucose-Induced Extracellular Matrix Deposition via the Phosphatidylinositol 3-Kinase/Protein Kinase B Pathway in Renal Tubular Epithelial Cells. J Cell Biochem 2017; 118:2271-2284. [PMID: 28075049 DOI: 10.1002/jcb.25881] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2016] [Accepted: 01/10/2017] [Indexed: 02/05/2023]
Abstract
A typical hallmark of diabetic kidney disease (DKD) is an excessive deposition of extracellular matrix (ECM) in the glomerulus and renal tubulointerstitium, leading to glomerulosclerosis and tubular interstitial fibrosis. Src homology 2 domain-containing inositol 5'-phosphatase (SHIP) is a negative regulator of the phosphatidylinositol 3-kinase/protein kinase B (PI3K/Akt) signaling. Here, we investigated the effect of SHIP on ECM deposition in diabetic mice and high glucose-stimulated human renal tubular epithelial cells (HK2 cells). The decreased SHIP and increased phospho-Akt (Ser 473, Thr 308) were found in the renal tubular cells of diabetic mice, which were accompanied by overexpression of transforming growth factor-β1 (TGF-β1), α-smooth muscle actin (α-SMA), and secreted collagen type 3 (Col 3) and a low expression of E-cadherin compared to that in normal mice. In vitro research revealed that high glucose-attenuated SHIP expression accompanied the activation of the PI3K/Akt signaling and ECM production. Knocking down SHIP in HK2 cells caused an increase in the levels of phospho-Akt (Ser 473), phospho-Akt (Thr 308), TGF-β1, α-SMA, and secreted Col 3 and a decrease in E-cadherin. Again, either the M90-SHIP plasmid or the PI3K/Akt pathway inhibitor LY294002 could significantly prevent the high glucose-induced increase in TGF-β1, α-SMA, and secreted Col 3 and decreased E-cadherin. Furthermore, we confirmed that inhibition of the TGF-β1 pathway with SB431542 blocked the effect of SHIP knockdown on ECM production in HK2 cells. In summary, our study suggests that decreased SHIP mediates high glucose-induced TGF-β1 upregulation and ECM deposition through activation of the PI3K/Akt pathway in renal tubular cells. J. Cell. Biochem. 118: 2271-2284, 2017. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Fan Li
- Department of Pathology, Hebei Medical University, Shijiazhuang, China
| | - Lisha Li
- Department of Pathology, Hebei Medical University, Shijiazhuang, China
| | - Jun Hao
- Department of Pathology, Hebei Medical University, Shijiazhuang, China
| | - Shuxia Liu
- Department of Pathology, Hebei Medical University, Shijiazhuang, China
| | - Huijun Duan
- Department of Pathology, Hebei Medical University, Shijiazhuang, China
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Zhu L, Zhao S, Liu S, Liu Q, Li F, Hao J. PTEN Regulates Renal Extracellular Matrix Deposit via Increased CTGF in Diabetes Mellitus. J Cell Biochem 2015; 117:1187-98. [PMID: 26447680 DOI: 10.1002/jcb.25402] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Accepted: 10/06/2015] [Indexed: 01/24/2023]
Abstract
Extracellular matrix accumulation and fibrosis are the features of diabetic nephropathy. PI3K (phosphatidylinositol 3-kinase)/Akt (protein kinase B) signal pathway and its inhibitor PTEN (phosphatase and tensin homolog deleted on chromosome 10) are revealed to modulate renal fibrosis. However, the exact mechanism is still not well known. In the present study we found that compared with normal mice, diabetic mice showed decreased PTEN, increased phospho-Akt (Ser 473), phospho-Akt (Thr 308), CTGF (connective tissue growth factor), α-SMA (α-smooth muscle actin), and matricellular protein in kidney. Knocking down of PTEN caused an increase in phospho-Akt (Ser 473), phospho-Akt (Thr 308), CTGF, secreted fibronectin, and secreted Col 3 in HKC cells (human renal tubular epithelial cells). Again, in vitro experiment revealed 1.89, 2.18, 1.92, 3.06, 2.06-fold increases of phospho-Akt (Ser 473), phospho-Akt (Thr 308), CTGF, secreted fibronectin, and secreted Col 3 in high glucose-stimulated HKC cells in comparison with normal control cells. Furthermore, knocking down of CTGF reversed increased secreted fibronectin and Col 3 in high glucose-treated HKC cells. Moreover, transfection of PTEN expression vector prevented high glucose-caused these changes in HKC cells. Especially, CTGF expression, secretion of fibronectin and Col 3 were, respectively, decreased by 38.81, 53.85, and 39.12%. The treatment of LY294002 inhibited phospho-Akt (Ser 473) and phospho-Akt (Thr 308) expression followed by decreased CTGF, secretory fibronectin and secretory Col 3 in high glucose-treated HKC cells. In the end our study suggests that PTEN regulates renal extracellular matrix production via activated Akt and increased CTGF in diabetes mellitus.
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Affiliation(s)
- Lin Zhu
- Department of Electromyogram, 3rd Affiliated Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Song Zhao
- Department of Pathology, Hebei Medical University, Shijiazhuang, Hebei, China
| | - Shuxia Liu
- Department of Pathology, Hebei Medical University, Shijiazhuang, Hebei, China
| | - Qingjuan Liu
- Department of Pathology, Hebei Medical University, Shijiazhuang, Hebei, China
| | - Fan Li
- Department of Pathology, Hebei Medical University, Shijiazhuang, Hebei, China
| | - Jun Hao
- Department of Pathology, Hebei Medical University, Shijiazhuang, Hebei, China
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Wang Z, Liu X, Zhang D, Wang X, Zhao F, Shi P, Pang X. Co‑culture with human fetal epidermal keratinocytes promotes proliferation and migration of human fetal and adult dermal fibroblasts. Mol Med Rep 2014; 11:1105-10. [PMID: 25351528 DOI: 10.3892/mmr.2014.2798] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2013] [Accepted: 10/20/2014] [Indexed: 11/06/2022] Open
Abstract
The repair strategy for the healing of skin wounds in fetuses differs from that in adults. Proliferation and migration of dermal fibroblasts are the main mechanisms associated with skin wound healing, as well as the complex interactions between epidermal keratinocytes (KCs) and dermal fibroblasts. In order to investigate the effects of fetal skin epidermal KCs on fetal and adult human dermal fibroblasts, KCs and fibroblasts were isolated from the skin tissue of mid‑gestational human fetuses and adults, and co‑cultured using a Transwell® system. When fetal mid‑gestational KCs were co‑cultured with either fetal or adult dermal fibroblasts, the proliferative and migratory potential of the fibroblasts was significantly enhanced. Furthermore, these phenotypic changes were concomitant with the upregulation of numerous proteins including mouse double minute 2 homolog, cyclin B1, phospho‑cyclin‑dependent kinase 1, phospho‑extracellular signal‑regulated kinase, and phospho‑AKT, along with C‑X‑C chemokine receptor 4, phospho‑p38 mitogen activated protein kinase, matrix metalloproteinase (MMP)‑2 and MMP‑9. Notably, no significant differences were observed between fetal and adult dermal fibroblasts in their responses to fetal mid‑gestational epidermal KCs, indicating that the cells from these two developmental stages respond in a similar manner to co‑culture with KCs.
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Affiliation(s)
- Zhe Wang
- Department of Stem Cells and Regenerative Medicine, Key Laboratory of Cell Biology, Ministry of Public Health and Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Xiaoyu Liu
- Department of Stem Cells and Regenerative Medicine, Key Laboratory of Cell Biology, Ministry of Public Health and Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Dianbao Zhang
- Department of Stem Cells and Regenerative Medicine, Key Laboratory of Cell Biology, Ministry of Public Health and Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Xiliang Wang
- Department of Stem Cells and Regenerative Medicine, Key Laboratory of Cell Biology, Ministry of Public Health and Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Feng Zhao
- Department of Stem Cells and Regenerative Medicine, Key Laboratory of Cell Biology, Ministry of Public Health and Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Ping Shi
- Department of General Practice, The First Affiliated Hospital of China Medical University, Shenyang, Lianoning 110001, P.R. China
| | - Xining Pang
- Department of Stem Cells and Regenerative Medicine, Key Laboratory of Cell Biology, Ministry of Public Health and Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, Liaoning 110001, P.R. China
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Mao S, Huang S. The signaling pathway of stromal cell-derived factor-1 and its role in kidney diseases. J Recept Signal Transduct Res 2013; 34:85-91. [PMID: 24303939 DOI: 10.3109/10799893.2013.865746] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The chemokine stromal cell-derived factor-1 (SDF-1) regulates the trafficking of progenitor cell (PGC) during embryonic development, cell chemotaxis, and postnatal homing into injury sites. SDF-1 also regulates cell growth, survival, adhesion and angiogenesis. However, in different tissues/cells, the role of SDF-1 is different, such as that it is increased in most of the tumors and associated with cancer metastasis, whereas it is essential for the development of vasculature. For kidney diseases, its role remains controversial. Signaling pathways might be very important in the pathogenesis of kidney diseases. We performed this review to provide a relatively complete signaling pathway flowchart for SDF-1 to the investigators who were interested in the role of SDF-1 in the pathogenesis of kidney diseases. Here, we reviewed the signal transduction pathway of SDF-1 and its role in the pathogenesis of kidney diseases.
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Affiliation(s)
- Song Mao
- Department of Nephrology, Nanjing Children's Hospital, Affiliated to Nanjing Medical University , Nanjing , China
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