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Bahrami M, Abbaszadeh HA, Norouzian M, Abdollahifar MA, Roozbahany NA, Saber M, Azimi M, Ehsani E, Bakhtiyari M, Serra AL, Moghadasali R. Enriched human embryonic stem cells-derived CD133 +, CD24 + renal progenitors engraft and restore function in a gentamicin-induced kidney injury in mice. Regen Ther 2024; 27:506-518. [PMID: 38745839 PMCID: PMC11091464 DOI: 10.1016/j.reth.2024.04.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 03/30/2024] [Accepted: 04/25/2024] [Indexed: 05/16/2024] Open
Abstract
Introduction Acute kidney injury (AKI) is a common health problem that leads to high morbidity and potential mortality. The failure of conventional treatments to improve forms of this condition highlights the need for innovative and effective treatment approaches. Regenerative therapies with Renal Progenitor Cells (RPCs) have been proposed as a promising new strategy. A growing body of evidence suggests that progenitor cells differentiated from different sources, including human embryonic stem cells (hESCs), can effectively treat AKI. Methods Here, we describe a method for generating RPCs and directed human Embryoid Bodies (EBs) towards CD133+CD24+ renal progenitor cells and evaluate their functional activity in alleviating AKI. Results The obtained results show that hESCs-derived CD133+CD24+ RPCs can engraft into damaged renal tubules and restore renal function and structure in mice with gentamicin-induced kidney injury, and significantly decrease blood urea nitrogen levels, suppress oxidative stress and inflammation, and attenuate histopathological disturbances, including tubular necrosis, tubular dilation, urinary casts, and interstitial fibrosis. Conclusion The results suggest that RPCs have a promising regenerative potential in improving renal disease and can lay the foundation for future cell therapy and disease modeling.
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Affiliation(s)
- Maryam Bahrami
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Laser Applications in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hojjat Allah Abbaszadeh
- Laser Applications in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Hearing Disorders Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohsen Norouzian
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad-Amin Abdollahifar
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Navid Ahmady Roozbahany
- Hearing Disorders Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Private Practice, Bradford ON, Canada
| | - Maryam Saber
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Masoumeh Azimi
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Ehsan Ehsani
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
- Department of Biology, Roudehen Branch, Islamic Azad University, Roudehen, Iran
| | - Mohsen Bakhtiyari
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Andreas L. Serra
- Department of Internal Medicine and Nephrology, Klinik Hirslanden, Zurich, Switzerland
| | - Reza Moghadasali
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
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Du Y, Wu M, Song S, Bian Y, Shi Y. TXNIP deficiency attenuates renal fibrosis by modulating mTORC1/TFEB-mediated autophagy in diabetic kidney disease. Ren Fail 2024; 46:2338933. [PMID: 38616177 PMCID: PMC11018024 DOI: 10.1080/0886022x.2024.2338933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 03/30/2024] [Indexed: 04/16/2024] Open
Abstract
Thioredoxin-interacting protein (TXNIP) is an important regulatory protein for thioredoxin (TRX) that elicits the generation of reactive oxygen species (ROS) by inhibiting the redox function of TRX. Abundant evidence suggests that TXNIP is involved in the fibrotic process of diabetic kidney disease (DKD). However, the potential mechanism of TXNIP in DKD is not yet well understood. In this study, we found that TXNIP knockout suppressed renal fibrosis and activation of mammalian target of rapamycin complex 1 (mTORC1) and restored transcription factor EB (TFEB) and autophagy activation in diabetic kidneys. Simultaneously, TXNIP interference inhibited epithelial-to-mesenchymal transformation (EMT), collagen I and fibronectin expression, and mTORC1 activation, increased TFEB nuclear translocation, and promoted autophagy restoration in HK-2 cells exposed to high glucose (HG). Rapamycin, an inhibitor of mTORC1, increased TFEB nuclear translocation and autophagy in HK-2 cells under HG conditions. Moreover, the TFEB activators, curcumin analog C1 and trehalose, effectively restored HG-induced autophagy, and abrogated HG-induced EMT and collagen I and fibronectin expression in HK-2 cells. Taken together, these findings suggest that TXNIP deficiency ameliorates renal fibrosis by regulating mTORC1/TFEB-mediated autophagy in diabetic kidney diseases.
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Affiliation(s)
- Yunxia Du
- Department of Pathology, Hebei Medical University, Shijiazhuang, China
- Hebei Key Laboratory of Kidney Disease, Shijiazhuang, China
- Center of Metabolic Diseases and Cancer Research, Institute of Medical and Health Science, Hebei Medical University, Shijiazhuang, China
| | - Ming Wu
- Department of Pathology, Hebei Medical University, Shijiazhuang, China
- Hebei Key Laboratory of Kidney Disease, Shijiazhuang, China
- Center of Metabolic Diseases and Cancer Research, Institute of Medical and Health Science, Hebei Medical University, Shijiazhuang, China
| | - Shan Song
- Department of Pathology, Hebei Medical University, Shijiazhuang, China
- Hebei Key Laboratory of Kidney Disease, Shijiazhuang, China
- Center of Metabolic Diseases and Cancer Research, Institute of Medical and Health Science, Hebei Medical University, Shijiazhuang, China
| | - Yawei Bian
- Department of Pathology, Hebei Medical University, Shijiazhuang, China
| | - Yonghong Shi
- Department of Pathology, Hebei Medical University, Shijiazhuang, China
- Hebei Key Laboratory of Kidney Disease, Shijiazhuang, China
- Center of Metabolic Diseases and Cancer Research, Institute of Medical and Health Science, Hebei Medical University, Shijiazhuang, China
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Meng P, Liu C, Li J, Fang P, Yang B, Sun W, Zhang Y. CXC chemokine receptor 7 ameliorates renal fibrosis by inhibiting β-catenin signaling and epithelial-to-mesenchymal transition in tubular epithelial cells. Ren Fail 2024; 46:2300727. [PMID: 38189094 PMCID: PMC10776045 DOI: 10.1080/0886022x.2023.2300727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 12/26/2023] [Indexed: 01/09/2024] Open
Abstract
Renal fibrosis is a common feature of various chronic kidney diseases. However, the underlying mechanism remains poorly understood. The CXC chemokine receptor (CXCR) family plays a role in renal fibrosis; however, the detailed mechanisms have not been elucidated. In this study, we investigated the potential role of CXCR7 in mediating renal fibrosis. CXCR7 expression is decreased in unilateral ischemia-reperfusion injury (UIRI) and unilateral ureteral obstruction mouse models. Furthermore, CXCR7 was specifically expressed primarily in the Lotus Tetragonolobus Lectin-expressing segment of tubules, was slightly expressed in the peanut agglutinin-expressing segment, and was barely expressed in the Dolichos biflorus agglutinin-expressing segment. Administration of pFlag-CXCR7, an overexpression plasmid for CXCR7, significantly inhibited the activation of β-catenin signaling and protected against the progression of epithelial-to-mesenchymal transition (EMT) and renal fibrosis in a UIRI mouse model. Using cultured HKC-8 cells, we found that CXCR7 significantly downregulated the expression of active β-catenin and fibrosis-related markers, including fibronectin, Collagen I, and α-SMA. Furthermore, CXCR7 significantly attenuated TGF-β1-induced changes in β-catenin signaling, EMT and fibrosis. These results suggest that CXCR7 plays a crucial role in inhibiting the activation of β-catenin signaling and the progression of EMT and renal fibrosis. Thus, CXCR7 could be a novel therapeutic target for renal fibrosis.
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Affiliation(s)
- Ping Meng
- Department of Central Laboratory, Huadu District People’s Hospital of Guangzhou, Guangzhou, China
| | - Chunli Liu
- Department of Central Laboratory, Huadu District People’s Hospital of Guangzhou, Guangzhou, China
| | - Jingchun Li
- Department of Central Laboratory, Huadu District People’s Hospital of Guangzhou, Guangzhou, China
| | - Ping Fang
- Department of Laboratory Medicine, Huadu District People’s Hospital of Guangzhou, Guangzhou, China
| | - Bo Yang
- Department of Clinical Nutrition, Huadu District People’s Hospital of Guangzhou, Guangzhou, China
| | - Wei Sun
- Department of Central Laboratory, Huadu District People’s Hospital of Guangzhou, Guangzhou, China
| | - Yunfang Zhang
- Department of Nephrology, Huadu District People’s Hospital of Guangzhou, Guangzhou, China
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Li X, Liang Q, Liu L, Chen S, Li Y, Pu Y. FTO attenuates TNF-α-induced damage of proximal tubular epithelial cells in acute pancreatitis-induced acute kidney injury via targeting AQP3 in an N6-methyladenosine-dependent manner. Ren Fail 2024; 46:2322037. [PMID: 38445367 PMCID: PMC10919303 DOI: 10.1080/0886022x.2024.2322037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 02/17/2024] [Indexed: 03/07/2024] Open
Abstract
BACKGROUND Acute kidney injury (AKI) is a frequent complication of severe acute pancreatitis (SAP). Previous investigations have revealed the involvement of FTO alpha-ketoglutarate-dependent dioxygenase (FTO) and aquaporin 3 (AQP3) in AKI. Therefore, the aim of this study is to explore the association of FTO and AQP3 on proximal tubular epithelial cell damage in SAP-induced AKI. METHODS An in-vitro AKI model was established in human proximal tubular epithelial cells (PTECs) HK-2 via tumor necrosis factor-α (TNF-α) induction (20 ng/mL), after which FTO and AQP3 expression was manipulated and quantified by quantitative real-time PCR and Western blotting. The viability and apoptosis of PTECs under various conditions, and reactive oxygen species (ROS), superoxide dismutase (SOD), and malonaldehyde (MDA) levels within these cells were measured using commercial assay kits and flow cytometry. Methylated RNA immunoprecipitation and mRNA stability assays were performed to elucidate the mechanism of FTO-mediated N6-methyladenosine (m6A) modification. Western blotting was performed to quantify β-catenin protein levels in the PTECs. RESULTS FTO overexpression attenuated the TNF-α-induced decrease in viability and SOD levels, elevated apoptosis, increased levels of ROS and MDA, and diminished TNF-α-induced AQP3 expression and reduced β-catenin expression, but its silencing led to contradictory results. FTO negatively modulates AQP3 levels in RTECs in an m6A-depednent manner and compromises AQP3 stability. In addition, all FTO overexpression-induced effects in TNF-α-induced PTECs were neutralized following AQP3 upregulation. CONCLUSION FTO alleviates TNF-α-induced damage to PTECs in vitro by targeting AQP3 in an m6A-dependent manner.
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Affiliation(s)
- Xinghui Li
- Department of Radiology, Affiliated Hospital of North Sichuan Medical College, Medical Imaging Key Laboratory of Sichuan Province, Nanchong, Sichuan Province, China
| | - Qi Liang
- Department of Clinical Laboratory, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan Province, China
| | - Lu Liu
- Department of Radiology, Affiliated Hospital of North Sichuan Medical College, Medical Imaging Key Laboratory of Sichuan Province, Nanchong, Sichuan Province, China
| | - Shujun Chen
- Department of Radiology, Affiliated Hospital of North Sichuan Medical College, Medical Imaging Key Laboratory of Sichuan Province, Nanchong, Sichuan Province, China
| | - Yong Li
- Department of Radiology, Affiliated Hospital of North Sichuan Medical College, Medical Imaging Key Laboratory of Sichuan Province, Nanchong, Sichuan Province, China
| | - Yu Pu
- Department of Radiology, Affiliated Hospital of North Sichuan Medical College, Medical Imaging Key Laboratory of Sichuan Province, Nanchong, Sichuan Province, China
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Jia M, Han S, Wang Y. Systemic immunoinflammatory indexes in albuminuric adults are negatively associated with α-klotho: evidence from NHANES 2007-2016. Ren Fail 2024; 46:2385059. [PMID: 39135529 PMCID: PMC11328598 DOI: 10.1080/0886022x.2024.2385059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 05/16/2024] [Accepted: 07/22/2024] [Indexed: 08/18/2024] Open
Abstract
BACKGROUND Systemic Immune-Inflammation Index (SII) is a novel inflammatory biomarker closely associated with the inflammatory response and chronic kidney disease. Klotho is implicated as a pathogenic factor in the progression of kidney disease, and supplementation of Klotho may delay the progression of chronic kidney disease by inhibiting the inflammatory response. Our aim is to investigate the potential relationship between SII and Klotho in adult patients in the United States and explore the differences in the populations with and without albuminuria. METHODS We conducted a cross-sectional study recruiting adult participants with complete data on SII, Klotho, and urine albumin-to-creatinine ratio (ACR) from the National Health and Nutrition Examination Survey from 2007 to 2016. SII was calculated as platelet count × neutrophil count/lymphocyte count, with abnormal elevation defined as values exceeding 330 × 10^9/L. Albuminuria was defined as ACR >30 mg/g. Weighted multivariable regression analysis and subgroup analysis were employed to explore the independent relationship between SII and Klotho. RESULTS Our study included a total of 10,592 individuals. In all populations, non-albuminuria population, and proteinuria population with ACR ≥ 30, participants with abnormally elevated SII levels, as compared to those with SII less than 330 × 10^9/L, showed a negative correlation between elevated SII levels and increased Klotho, which persisted after adjusting for covariates. CONCLUSIONS There is a negative correlation between SII and Klotho in adult patients in the United States. This finding complements previous research but requires further analysis through large prospective studies.
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Affiliation(s)
- Meng Jia
- Department of Nephrology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Shisheng Han
- Department of Nephrology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yi Wang
- Department of Nephrology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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6
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Shen S, Zhong H, Zhou X, Li G, Zhang C, Zhu Y, Yang Y. Advances in Traditional Chinese Medicine research in diabetic kidney disease treatment. PHARMACEUTICAL BIOLOGY 2024; 62:222-232. [PMID: 38357845 PMCID: PMC10877659 DOI: 10.1080/13880209.2024.2314705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 01/31/2024] [Indexed: 02/16/2024]
Abstract
CONTEXT Diabetic kidney disease (DKD) is a prominent complication arising from diabetic microangiopathy, and its prevalence and renal impact have placed it as the primary cause of end-stage renal disease. Traditional Chinese Medicine (TCM) has the distinct advantage of multifaceted and multilevel therapeutic attributes that show efficacy in improving clinical symptoms, reducing proteinuria, protecting renal function, and slowing DKD progression. Over recent decades, extensive research has explored the mechanisms of TCM for preventing and managing DKD, with substantial studies that endorse the therapeutic benefits of TCM compounds and single agents in the medical intervention of DKD. OBJECTIVE This review lays the foundation for future evidence-based research efforts and provide a reference point for DKD investigation. METHODS The relevant literature published in Chinese and English up to 30 June 2023, was sourced from PubMed, Cochrane Library, VIP Database for Chinese Technical Periodicals (VIP), Wanfang Data, CNKI, and China Biology Medicine disc (CBM). The process involved examining and summarizing research on TCM laboratory tests and clinical randomized controlled trials for DKD treatment. RESULTS AND CONCLUSIONS The TCM intervention has shown the potential to inhibit the expression of inflammatory cytokines and various growth factors, lower blood glucose levels, and significantly affect insulin resistance, lipid metabolism, and improved renal function. Furthermore, the efficacy of TCM can be optimized by tailoring personalized treatment regimens based on the unique profiles of individual patients. We anticipate further rigorous and comprehensive clinical and foundational investigations into the mechanisms underlying the role of TCM in treating DKD.
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Affiliation(s)
- Shiyi Shen
- Department of Pharmacy, Sichuan Academy of Medical Sciences & Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of China, China
| | - Huiyun Zhong
- School of Medicine and Food, Sichuan Vocational College of Health and Rehabilitation, Zigong, China
| | - Xiaoshi Zhou
- Department of Pharmacy, Sichuan Academy of Medical Sciences & Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of China, China
| | - Guolin Li
- Department of Pharmacy, Sichuan Academy of Medical Sciences & Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of China, China
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Changji Zhang
- Department of Pharmacy, Sichuan Academy of Medical Sciences & Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of China, China
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Yulian Zhu
- Department of Pharmacy, Ziyang People’s Hospital, Ziyang, China
| | - Yong Yang
- Department of Pharmacy, Sichuan Academy of Medical Sciences & Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of China, China
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Yu W, Song J, Chen S, Nie J, Zhou C, Huang J, Liang H. Myofibroblast-derived exosomes enhance macrophages to myofibroblasts transition and kidney fibrosis. Ren Fail 2024; 46:2334406. [PMID: 38575341 PMCID: PMC10997357 DOI: 10.1080/0886022x.2024.2334406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/06/2024] Open
Abstract
A critical event in the pathogenesis of kidney fibrosis is the transition of macrophages into myofibroblasts (MMT). Exosomes play an important role in crosstalk among cells in the kidney and the development of renal fibrosis. However, the role of myofibroblast-derived exosomes in the process of MMT and renal fibrosis progression remains unknown. Here, we examined the role of myofibroblast-derived exosomes in MMT and kidney fibrogenesis. In vitro, transforming growth factor-β1 stimulated the differentiation of kidney fibroblasts into myofibroblasts and promoted exosome release from myofibroblasts. RAW264.7 cells were treated with exosomes derived from myofibroblasts. We found purified exosomes from myofibroblasts trigger the MMT. By contrast, inhibition of exosome production with GW4869 or exosome depletion from the conditioned media abolished the ability of myofibroblasts to induce MMT. Mice treatment with myofibroblast-derived exosomes (Myo-Exo) exhibited severe fibrotic lesion and more abundant MMT cells in kidneys with folic acid (FA) injury, which was negated by TANK-banding kinase-1 inhibitor. Furthermore, suppression of exosome production reduced collagen deposition, extracellular matrix protein accumulation, and MMT in FA nephropathy. Collectively, Myo-Exo enhances the MMT and kidney fibrosis. Blockade of exosomes mediated myofibroblasts-macrophages communication may provide a novel therapeutic target for kidney fibrosis.
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Affiliation(s)
- Wenqiang Yu
- Department of Anesthesiology, Foshan Women and Children Hospital, Foshan, China
| | - Jinfang Song
- Zhuhai Campus, Zunyi Medical University, Zhuhai, China
| | - Shuangquan Chen
- Department of Anesthesiology, Foshan Women and Children Hospital, Foshan, China
| | - Jiayi Nie
- Department of Anesthesiology, Foshan Women and Children Hospital, Foshan, China
| | - Chujun Zhou
- Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Jiamin Huang
- Department of Anesthesiology, Foshan Women and Children Hospital, Foshan, China
| | - Hua Liang
- Department of Anesthesiology, Foshan Women and Children Hospital, Foshan, China
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Sheng A, Liu F, Wang Q, Fu H, Mao J. The roles of TRPC6 in renal tubular disorders: a narrative review. Ren Fail 2024; 46:2376929. [PMID: 39022902 PMCID: PMC11259070 DOI: 10.1080/0886022x.2024.2376929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 07/02/2024] [Indexed: 07/20/2024] Open
Abstract
The transient receptor potential canonical 6 (TRPC6) channel, a nonselective cation channel that allows the passage of Ca2+, plays an important role in renal diseases. TRPC6 is activated by Ca2+ influx, oxidative stress, and mechanical stress. Studies have shown that in addition to glomerular diseases, TRPC6 can contribute to renal tubular disorders, such as acute kidney injury, renal interstitial fibrosis, and renal cell carcinoma (RCC). However, the tubule-specific physiological functions of TRPC6 have not yet been elucidated. Its pathophysiological role in ischemia/reperfusion (I/R) injury is debatable. Thus, TRPC6 may have dual roles in I/R injury. TRPC6 induces renal fibrosis and immune cell infiltration in a unilateral ureteral obstruction (UUO) mouse model. Additionally, TRPC6 overexpression may modify G2 phase transition, thus altering the DNA damage checkpoint, which can cause genomic instability and RCC tumorigenesis and can control the proliferation of RCC cells. This review highlights the importance of TRPC6 in various conditions of the renal tubular system. To better understand certain renal disorders and ultimately identify new therapeutic targets to improve patient care, the pathophysiology of TRPC6 must be clarified.
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Affiliation(s)
- Aiqin Sheng
- Department of Nephrology, Children’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Fei Liu
- Department of Nephrology, Children’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Qianhui Wang
- Department of Nephrology, Children’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Haidong Fu
- Department of Nephrology, Children’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jianhua Mao
- Department of Nephrology, Children’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
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Shin J, Yoon Y, Oh DJ. Clinical impact of Wnt5a expression on persistence of acute kidney injury in patients with urosepsis. Ren Fail 2024; 46:2369176. [PMID: 38913943 PMCID: PMC11198152 DOI: 10.1080/0886022x.2024.2369176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Accepted: 06/12/2024] [Indexed: 06/26/2024] Open
Abstract
Abnormal Wnt5a expression is associated with dysregulated inflammation and organ dysfunction. However, the effect of Wnt5a activation on the duration of organ dysfunction remains unclear. This prospective study investigated the association between Wnt5a levels and persistent acute kidney injury (AKI) in patients with urosepsis. Serum creatinine and Wnt5a levels were measured on days 1 and 5 and at discharge in 87 patients diagnosed with urosepsis. Patients with urosepsis were classified into an improving acute kidney injury (AKI) group and a persistent or worsening AKI group according to the AKI stage on days 1 and 5. AKI recovery was defined as a discharge-to-baseline serum creatinine ratio of <1.5. Twenty-eight patients with urosepsis (32.2%) had persistent or worsening AKI, and their Wnt5a levels were higher on days 1 and 5 and at discharge than those with improving AKI. The association between Wnt5a levels and persistent or worsening AKI was maintained after adjusting for age, sex, baseline serum creatinine levels, and disease severity. Moreover, elevated Wnt5a levels were associated with an increased risk of major adverse kidney events. High Wnt5a levels at discharge were associated with unrecovered AKI and participants with AKI recovery had a steeper Wnt5a slope over time than those without recovery, irrespective of age, sex, baseline serum creatinine level, or disease severity. Assessment of Wnt5a expression was helpful in predicting AKI persistence and adverse outcomes in patients with urosepsis. Therefore, Wnt5a may serve as a valuable bio-marker for identifying the risk of persistence of AKI.
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Affiliation(s)
- Jungho Shin
- Department of Internal Medicine, Chung-Ang University College of Medicine, Seoul, South Korea
| | - Yoosik Yoon
- Department of Microbiology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - Dong-Jin Oh
- Department of Internal Medicine, Myongji Hospital, Hanyang University College of Medicine, Goyang, South Korea
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10
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Wang L, Wang J, Zhang Y, Zhang H. Current perspectives and trends of the research on hypertensive nephropathy: a bibliometric analysis from 2000 to 2023. Ren Fail 2024; 46:2310122. [PMID: 38345042 PMCID: PMC10863539 DOI: 10.1080/0886022x.2024.2310122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 01/21/2024] [Indexed: 02/15/2024] Open
Abstract
Hypertensive nephropathy continues to be a major cause of end-stage renal disease and poses a significant global health burden. Despite the staggering development of research in hypertensive nephropathy, scientists and clinicians can only seek out useful information through articles and reviews, it remains a hurdle for them to quickly track the trend in this field. This study uses the bibliometric method to identify the evolutionary development and recent hotspots of hypertensive nephropathy. The Web of Science Core Collection database was used to extract publications on hypertensive nephropathy from January 2000 to November 2023. CiteSpace was used to capture the patterns and trends from multi-perspectives, including countries/regions, institutions, keywords, and references. In total, 557 publications on hypertensive nephropathy were eligible for inclusion. China (n = 208, 37.34%) was the most influential contributor among all the countries. Veterans Health Administration (n = 19, 3.41%) was found to be the most productive institution. Keyword bursting till now are renal fibrosis, outcomes, and mechanisms which are predicted to be the potential frontiers and hotspots in the future. The top seven references were listed, and their burst strength was shown. A comprehensive overview of the current status and research frontiers of hypertensive nephropathy has been provided through the bibliometric perspective. Recent advancements and challenges in hypertensive nephropathy have been discussed. These findings can offer informative instructions for researchers and scholars.
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Affiliation(s)
- Lan Wang
- Renal Division, Department of Medicine, Peking University First Hospital, Beijing, China
- Institute of Nephrology, Peking University, Beijing, China
- Key Laboratory of Renal Disease, Ministry of Health of China, Beijing, China
- Key Laboratory of Chronic Kidney Disease Prevention and Treatment, Peking University, Ministry of Education, Beijing, China
| | - Jingyu Wang
- Renal Division, Department of Medicine, Peking University First Hospital, Beijing, China
- Institute of Nephrology, Peking University, Beijing, China
- Key Laboratory of Renal Disease, Ministry of Health of China, Beijing, China
- Key Laboratory of Chronic Kidney Disease Prevention and Treatment, Peking University, Ministry of Education, Beijing, China
| | - Yuemiao Zhang
- Renal Division, Department of Medicine, Peking University First Hospital, Beijing, China
- Institute of Nephrology, Peking University, Beijing, China
- Key Laboratory of Renal Disease, Ministry of Health of China, Beijing, China
- Key Laboratory of Chronic Kidney Disease Prevention and Treatment, Peking University, Ministry of Education, Beijing, China
| | - Hong Zhang
- Renal Division, Department of Medicine, Peking University First Hospital, Beijing, China
- Institute of Nephrology, Peking University, Beijing, China
- Key Laboratory of Renal Disease, Ministry of Health of China, Beijing, China
- Key Laboratory of Chronic Kidney Disease Prevention and Treatment, Peking University, Ministry of Education, Beijing, China
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Song J, Chen Y, Chen Y, Qiu M, Xiang W, Ke B, Fang X. DKK3 promotes renal fibrosis by increasing MFF-mediated mitochondrial dysfunction in Wnt/β-catenin pathway-dependent manner. Ren Fail 2024; 46:2343817. [PMID: 38682264 PMCID: PMC11060011 DOI: 10.1080/0886022x.2024.2343817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 04/11/2024] [Indexed: 05/01/2024] Open
Abstract
BACKGROUND Chronic kidney disease (CKD) lacks effective treatments and renal fibrosis (RF) is one of CKD's outcomes. Dickkopf 3 (DKK3) has been identified as an agonist in CKD. However, the underlying mechanisms of DKK3 in CKD are not fully understood. METHODS H2O2-treated HK-2 cells and ureteric obstruction (UUO) mice were used as RF models. Biomarkers, Masson staining, PAS staining, and TUNEL were used to assess kidney function and apoptosis. Oxidative stress and mitochondria function were also evaluated. CCK-8 and flow cytometry were utilized to assess cell viability and apoptosis. Western blotting, IHC, and qRT-PCR were performed to detect molecular expression levels. Immunofluorescence was applied to determine the subcellular localization. Dual luciferase assay, MeRIP, RIP, and ChIP were used to validate the m6A level and the molecule interaction. RESULTS DKK3 was upregulated in UUO mouse kidney tissue and H2O2-treated HK-2 cells. Knockdown of DKK3 inhibited oxidative stress, maintained mitochondrial homeostasis, and alleviated kidney damage and RF in UUO mice. Furthermore, DKK3 silencing suppressed HK-2 cell apoptosis, oxidative stress, and mitochondria fission. Mechanistically, DKK3 upregulation was related to the high m6A level regulated by METTL3. DKK3 activated TCF4/β-catenin and enhanced MFF transcriptional expression by binding to its promoter. Overexpression of MFF reversed in the inhibitory effect of DKK3 knockdown on cell damage. CONCLUSION Upregulation of DKK3 caused by m6A modification activated the Wnt/β-catenin pathway to increase MFF transcriptional expression, leading to mitochondrial dysfunction and oxidative stress, thereby promoting RF progression.
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Affiliation(s)
- Jianling Song
- Department of Nephrology, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi Province, P.R. China
| | - Yanxia Chen
- Department of Nephrology, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi Province, P.R. China
| | - Yan Chen
- Department of Nephrology, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi Province, P.R. China
| | - Minzi Qiu
- Department of Nephrology, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi Province, P.R. China
| | - Wenliu Xiang
- Department of Nephrology, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi Province, P.R. China
| | - Ben Ke
- Department of Nephrology, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi Province, P.R. China
| | - Xiangdong Fang
- Department of Nephrology, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi Province, P.R. China
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12
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Zhao J, Wang X, Wu Y, Zhao C. Krüppel-like factor 4 modulates the miR-101/COL10A1 axis to inhibit renal fibrosis after AKI by regulating epithelial-mesenchymal transition. Ren Fail 2024; 46:2316259. [PMID: 38345033 PMCID: PMC10863509 DOI: 10.1080/0886022x.2024.2316259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 02/03/2024] [Indexed: 02/15/2024] Open
Abstract
Acute kidney injury (AKI) can progress to renal fibrosis and chronic kidney disease (CKD), which reduces quality of life and increases the economic burden on patients. However, the molecular mechanisms underlying renal fibrosis following AKI remain unclear. This study tested the hypothesis that the Krüppel-like factor 4 (KLF4)/miR-101/Collagen alpha-1X (COL10A1) axis could inhibit epithelial-mesenchymal transition (EMT) and renal fibrosis after AKI in a mouse model of ischemia-reperfusion (I/R)-induced renal fibrosis and HK-2 cells by gene silencing, overexpression, immunofluorescence, immunohistochemistry, real-time quantitative PCR, Western blotting, dual-luciferase reporter assay, fluorescence in situ hybridization (FISH) and ELISA. Compared with the Sham group, I/R induced renal tubular and glomerular injury and fibrosis, and increased the levels of BUN, serum Scr and neutrophil gelatinase-associated lipocalin (NGAL), Col10a1 and Vimentin expression, but decreased E-cadherin expression in the kidney tissues of mice at 42 days post-I/R. Similarly, hypoxia promoted fibroblastic morphological changes in HK-2 cells and enhanced NGAL, COL10A1, Vimentin, and α-SMA expression, but reduced E-cadherin expression in HK-2 cells. These pathological changes were significantly mitigated in COL10A1-silenced renal tissues and HK-2 cells. KLF4 induces miR-101 transcription. More importantly, hypoxia upregulated Vimentin and COL10A1 expression, but decreased miR-101, KLF4, and E-cadherin expression in HK-2 cells. These hypoxic effects were significantly mitigated or abrogated by KLF4 over-expression in the HK-2 cells. Our data indicate that KLF4 up-regulates miR-101 expression, leading to the downregulation of COL10A1 expression, inhibition of EMT and renal fibrosis during the pathogenic process of I/R-related renal fibrosis.
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Affiliation(s)
- Jingying Zhao
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, People’s Republic of China
| | - Xiuli Wang
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, People’s Republic of China
| | - Yubin Wu
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, People’s Republic of China
| | - Chengguang Zhao
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, People’s Republic of China
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Li J, Shu L, Jiang Q, Feng B, Bi Z, Zhu G, Zhang Y, Li X, Wu J. Oridonin ameliorates renal fibrosis in diabetic nephropathy by inhibiting the Wnt/β-catenin signaling pathway. Ren Fail 2024; 46:2347462. [PMID: 38832497 PMCID: PMC11151809 DOI: 10.1080/0886022x.2024.2347462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2024] [Accepted: 04/22/2024] [Indexed: 06/05/2024] Open
Abstract
Diabetic nephropathy (DN) is one of the most serious and frequent complications among diabetes patients and presently constitutes vast the cases of end-stage renal disease worldwide. Tubulointerstitial fibrosis is a crucial factor related to the occurrence and progression of DN. Oridonin (Ori) is a diterpenoid derived from rubescens that has diverse pharmacological properties. Our previous study showed that Ori can protect against DN by decreasing the inflammatory response. However, whether Ori can alleviate renal fibrosis in DN remains unknown. Here, we investigated the mechanism through which Ori affects the Wnt/β-catenin signaling pathway in diabetic rats and human proximal tubular epithelial cells (HK-2) exposed to high glucose (HG) levels. Our results revealed that Ori treatment markedly decreased urinary protein excretion levels, improved renal function and alleviated renal fibrosis in diabetic rats. In vitro, HG treatment increased the migration of HK-2 cells while reducing their viability and proliferation rate, and treatment with Ori reversed these changes. Additionally, the knockdown of β-catenin arrested cell migration and reduced the expression levels of Wnt/β-catenin signaling-related molecules (Wnt4, p-GSK3β and β-catenin) and fibrosis-related molecules (α-smooth muscle actin, collagen I and fibronectin), and Ori treatment exerted an effect similar to that observed after the knockdown of β-catenin. Furthermore, the combination of Ori treatment and β-catenin downregulation exerted more pronounced biological effects than treatment alone. These findings may provide the first line of evidence showing that Ori alleviates fibrosis in DN by inhibiting the Wnt/β-catenin signaling pathway and thereby reveal a novel therapeutic avenue for treating tubulointerstitial fibrosis.
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Affiliation(s)
- Jushuang Li
- Department of Nephrology, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan University, Wuhan, P.R. China
| | - Lan Shu
- Network & Informatization Office, Huazhong University of Science and Technology Hospital, Wuhan, P.R. China
| | - Qianqian Jiang
- Department of Nephrology, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan University, Wuhan, P.R. China
| | - Baohong Feng
- Department of Nephrology, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan University, Wuhan, P.R. China
| | - Zhimin Bi
- Department of Nephrology, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan University, Wuhan, P.R. China
| | - Geli Zhu
- Department of Nephrology, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan University, Wuhan, P.R. China
| | - Yanxia Zhang
- Department of Nephrology, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan University, Wuhan, P.R. China
| | - Xiangyou Li
- Department of Nephrology, Wuchang Hospital, Wuhan University of Science and Technology, Wuhan, P.R. China
| | - Jun Wu
- Department of Nephrology, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan University, Wuhan, P.R. China
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Zhang Y, Lu F. Molecular mechanism of triptolide in myocardial fibrosis through the Wnt/β-catenin signaling pathway. SCAND CARDIOVASC J 2024; 58:2295785. [PMID: 38164796 DOI: 10.1080/14017431.2023.2295785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 12/12/2023] [Indexed: 01/03/2024]
Abstract
Objective. Myocardial fibrosis (MF) is a common manifestation of end-stage cardiovascular diseases. Triptolide (TP) provides protection against cardiovascular diseases. This study was to explore the functional mechanism of TP in MF rats via the Wnt/β-catenin pathway. Methods. The MF rat model was established via subcutaneous injection of isoproterenol (ISO) and treated with low/medium/high doses of TP (L-TP/M-TP/H-TP) or Wnt agonist BML-284. Cardiac function was examined by echocardiography. Pathological changes of myocardial tissues were observed by HE and Masson staining. Col-I/Col-III/Vimentin/α-SMA levels were detected by immunohistochemistry, RT-qPCR, and Western blot. Collagen volume fraction content was measured. Expression levels of the Wnt/β-catenin pathway-related proteins (β-catenin/c-myc/Cyclin D1) were detected by Western blot. Rat cardiac fibroblasts were utilized for in vitro validation experiments. Results. MF rats had enlarged left ventricle, decreased systolic and diastolic function and cardiac dysfunction, elevated collagen fiber distribution, collagen volume fraction and hydroxyproline content. Levels of Col-I/Col-III/Vimentin/α-SMA, and protein levels of β-catenin/c-myc/Cyclin D1 were increased in MF rats. The Wnt/β-catenin pathway was activated in the myocardial tissues of MF rats. TP treatment alleviated impairments of cardiac function and myocardial tissuepathological injury, decreased collagen fibers, collagen volume fraction, Col-I, Col-III, α-SMA and Vimentin levels, HYP content, inhibited Wnt/β-catenin pathway, with H-TP showing the most significant effects. Wnt agonist BML-284 antagonized the inhibitive effect of TP on MF. TP inhibited the Wnt/β-catenin pathway to repress the proliferation and differentiation of mouse cardiac fibroblasts in vitro. Conclusions. TP was found to ameliorate ISO-induced MF in rats by inhibiting the Wnt/β-catenin pathway.
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Affiliation(s)
- Yiwen Zhang
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Feng Lu
- Cardiovascular Internal Medicine, The Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
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15
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Sun G, Song Y, Li C, Sun B, Li C, Sun J, Xiao P, Zhang Z. MTCH2 promotes the malignant progression of ovarian cancer through the upregulation of AIMP2 expression levels, mitochondrial dysfunction and by mediating energy metabolism. Oncol Lett 2024; 28:492. [PMID: 39185493 PMCID: PMC11342418 DOI: 10.3892/ol.2024.14625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 07/11/2024] [Indexed: 08/27/2024] Open
Abstract
Ovarian cancer (OC) is a gynecological malignancy that ranks among the most common female cancers worldwide and notably reduces a patient's quality of life. Mitochondrial carrier homology 2 (MTCH2) is a mitochondrial outer membrane protein that serves a regulatory role in mitochondrial metabolism and cell death. The precise contribution and underlying molecular pathways of MTCH2 in the context of OC development is currently unclear. The present study aimed to investigate the roles of MTCH2 in the energy metabolism, cell proliferation and metastatic potential of OC cells and evaluate the regulatory relationship between MTCH2, aminoacyl transfer RNA synthetase-interacting multifunctional protein 2 (AIMP2) and claudin-3. An analysis of 67 patients with high-grade serous OC demonstrated increased expression levels of MTCH2, AIMP2 and claudin-3 in OC tumor tissue samples compared with in corresponding normal tissues adjacent to OC tissue samples. MTCH2 overexpression was significantly associated with the International Federation of Gynecology and Obstetrics stage and tumor differentiation of the OC tumor samples. In vitro experiments using the SK-OV-3 OC cell line demonstrated that MTCH2 exerts a regulatory effect on the cell proliferation, invasion and migratory capabilities of these cells. Knockdown of MTCH2 reduced ATP production, induced mitochondrial dysfunction and promoted cytoskeleton remodeling and apoptosis in SK-OV-3 OC cells. In addition, MTCH2 knockdown downregulated the expression levels of both claudin-3 and AIMP2 proteins. Knockdown of AIMP2 inhibited the regulatory effect of MTCH2. Co-immunoprecipitation experiments demonstrated that MTCH2 interacts with AIMP2 and claudin-3. The present study provides novel insights into the treatment of OC metastasis, as MTCH2 was demonstrated to serve roles in the progression of OC cells through the regulation of claudin-3 via AIMP2, which could provide novel insights into the treatment of ovarian cancer metastasis.
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Affiliation(s)
- Guangyu Sun
- Department of Gynecology, Cangzhou People's Hospital, Cangzhou, Hebei 061000, P.R. China
| | - Yanmin Song
- Department of Gynecology, Cangzhou People's Hospital, Cangzhou, Hebei 061000, P.R. China
| | - Congxian Li
- Department of Gynecology, Cangzhou People's Hospital, Cangzhou, Hebei 061000, P.R. China
| | - Bo Sun
- Department of Gynecology, Cangzhou People's Hospital, Cangzhou, Hebei 061000, P.R. China
| | - Chengcheng Li
- Department of Gynecology, Cangzhou People's Hospital, Cangzhou, Hebei 061000, P.R. China
| | - Jinbao Sun
- Department of Gynecology, Cangzhou People's Hospital, Cangzhou, Hebei 061000, P.R. China
| | - Ping Xiao
- Department of Gynecology, Cangzhou People's Hospital, Cangzhou, Hebei 061000, P.R. China
| | - Zhengmao Zhang
- Department of Gynecology, The Fourth Hospital of Hebei Medical University, Hebei Cancer Hospital, Shijiazhuang, Hebei 050011, P.R. China
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16
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Peng Z, Wang H, Zheng J, Chen H, Wang J, Weber HC, Yuan L, Qin X, Xiang Y, Liu C, Ji M, Liu H, Qu X. Attenuation of renal fibrosis in mice due to lack of bombesin receptor-activated protein homologue. Clin Exp Pharmacol Physiol 2024; 51:e13916. [PMID: 39155151 DOI: 10.1111/1440-1681.13916] [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: 02/27/2024] [Revised: 05/06/2024] [Accepted: 06/11/2024] [Indexed: 08/20/2024]
Abstract
Bombesin receptor-activated protein (BRAP), encoded by the C6orf89 gene in humans, is expressed in various cells with undefined functions. BC004004, the mouse homologue of C6orf89, has been shown to play a role in bleomycin-induced pulmonary fibrosis through the use of a BC004004 gene knockout mouse (BC004004-/-). In this study, we investigated the potential involvement of BRAP in renal fibrosis using two mouse models: unilateral ureteral obstruction (UUO) and type 2 diabetes mellitus induced by combination of a high-fat diet (HFD) and streptozocin (STZ). BRAP or its homologue was expressed in tubular epithelial cells (TECs) in the kidneys of patients with chronic kidney disease (CKD) and in BC004004+/+ mice. Compared to control mice, BC004004-/- mice exhibited attenuated renal injury and renal fibrosis after UUO or after HFD/STZ treatment. Immunohistochemistry and immunoblot analyses of the kidneys of BC004004+/+ mice after UUO surgery showed a more significant decrease in E-cadherin expression and a more significant increase in both α smooth muscle actin (α-SMA) and vimentin expression compared to BC004004-/- mice. Additionally, stimulation with transforming growth factor-β1 (TGF-β1) led to a more significant decrease in E-cadherin expression and a more significant increase in α-SMA and vimentin expression in isolated TECs from BC004004+/+ than in those from BC004004-/- mice. These results suggest that an enhanced epithelial-mesenchymal transition (EMT) process occurred in TECs in BC004004+/+ mice during renal injury, which might contribute to renal fibrosis. The loss of the BRAP homologue in BC004004-/- mice suppressed EMT activation in kidneys and contributed to the suppression of fibrosis during renal injury.
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Affiliation(s)
- Zhi Peng
- Department of Physiology, School of Basic Medical Science, Central South University, Changsha, China
| | - Hui Wang
- Department of Physiology, School of Basic Medical Science, Central South University, Changsha, China
| | - Jiaoyun Zheng
- Department of Pathology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Hui Chen
- Department of Physiology, School of Basic Medical Science, Central South University, Changsha, China
| | - Jie Wang
- Department of Physiology, School of Basic Medical Science, Central South University, Changsha, China
| | - Horst Christian Weber
- Department of Pathology and Laboratory Medicine, Boston University School of Medicine, Section of Gastroenterology, Boston, Massachusetts, USA
| | - Lin Yuan
- Department of Physiology, School of Basic Medical Science, Central South University, Changsha, China
| | - Xiaoqun Qin
- Department of Physiology, School of Basic Medical Science, Central South University, Changsha, China
- Key Laboratory of Hunan Provincial Institutions of Higher Education for Lung Diseases Research, Changsha, China
- National Demonstration Center for Teaching and Learning of Medical Functional Experimentation, Changsha, China
| | - Yang Xiang
- Department of Physiology, School of Basic Medical Science, Central South University, Changsha, China
- Key Laboratory of Hunan Provincial Institutions of Higher Education for Lung Diseases Research, Changsha, China
- National Demonstration Center for Teaching and Learning of Medical Functional Experimentation, Changsha, China
| | - Chi Liu
- Department of Physiology, School of Basic Medical Science, Central South University, Changsha, China
- Key Laboratory of Hunan Provincial Institutions of Higher Education for Lung Diseases Research, Changsha, China
- National Demonstration Center for Teaching and Learning of Medical Functional Experimentation, Changsha, China
| | - Ming Ji
- Department of Physiology, School of Basic Medical Science, Central South University, Changsha, China
- Key Laboratory of Hunan Provincial Institutions of Higher Education for Lung Diseases Research, Changsha, China
- National Demonstration Center for Teaching and Learning of Medical Functional Experimentation, Changsha, China
| | - Huijun Liu
- Department of Physiology, School of Basic Medical Science, Central South University, Changsha, China
- Key Laboratory of Hunan Provincial Institutions of Higher Education for Lung Diseases Research, Changsha, China
- National Demonstration Center for Teaching and Learning of Medical Functional Experimentation, Changsha, China
| | - Xiangping Qu
- Department of Physiology, School of Basic Medical Science, Central South University, Changsha, China
- Key Laboratory of Hunan Provincial Institutions of Higher Education for Lung Diseases Research, Changsha, China
- National Demonstration Center for Teaching and Learning of Medical Functional Experimentation, Changsha, China
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17
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Pang G, Ye L, Jiang Y, Wu Y, Zhang R, Yang H, Yang Y. Unveiling the bidirectional role of MMP9: A key player in kidney injury. Cell Signal 2024; 122:111312. [PMID: 39074714 DOI: 10.1016/j.cellsig.2024.111312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Revised: 07/04/2024] [Accepted: 07/22/2024] [Indexed: 07/31/2024]
Abstract
Matrix metalloproteinases (MMPs) are a group of zinc-dependent proteolytic metalloenzymes that are involved in numerous pathological conditions, including nephropathy. MMP9, a member of the MMPs family, is categorized as a constituent of the gelatinase B subgroup, and its involvement in extracellular matrix (ECM) remodeling and renal fibrosis highlights its importance in the development and progression of renal diseases. The exact role of MMP9 in the development of kidney diseases is still controversial. This study investigated the dual role of MMP9 in kidney injury, discussing its implications in the pathogenesis of kidney diseases and investigating the design and mechanism of MMP9 inhibitors based on previous studies. This study provides an effective basis for the development of novel and selective MMP9 inhibitors for treating renal diseases.
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Affiliation(s)
- Guiying Pang
- Anhui University of Traditional Chinese Medicine, Hefei 230000, People's Republic of China; Institute of Innovative Medicine, Biocytogen Pharmaceuticals (Beijing) Co, Ltd., Beijing 102609, People's Republic of China; Joint Graduate School, Yangtze Delta Drug Advanced Research Institute, Nantong 226133, People's Republic of China
| | - Ling Ye
- Anhui University of Traditional Chinese Medicine, Hefei 230000, People's Republic of China; Department of Pharmacology, Biocytogen Pharmaceuticals (Beijing) Co, Ltd, Beijing 102609, People's Republic of China; Joint Graduate School, Yangtze Delta Drug Advanced Research Institute, Nantong 226133, People's Republic of China
| | - Yinxiao Jiang
- Anhui University of Traditional Chinese Medicine, Hefei 230000, People's Republic of China; Joint Graduate School, Yangtze Delta Drug Advanced Research Institute, Nantong 226133, People's Republic of China
| | - Yilin Wu
- Anhui University of Traditional Chinese Medicine, Hefei 230000, People's Republic of China; Institute of Innovative Medicine, Biocytogen Pharmaceuticals (Beijing) Co, Ltd., Beijing 102609, People's Republic of China; Joint Graduate School, Yangtze Delta Drug Advanced Research Institute, Nantong 226133, People's Republic of China
| | - Rufeng Zhang
- Institute of Innovative Medicine, Biocytogen Pharmaceuticals (Beijing) Co, Ltd., Beijing 102609, People's Republic of China; Department of Pharmacology, Biocytogen Pharmaceuticals (Beijing) Co, Ltd, Beijing 102609, People's Republic of China
| | - Hongxu Yang
- Institute of Innovative Medicine, Biocytogen Pharmaceuticals (Beijing) Co, Ltd., Beijing 102609, People's Republic of China.
| | - Yi Yang
- Institute of Innovative Medicine, Biocytogen Pharmaceuticals (Beijing) Co, Ltd., Beijing 102609, People's Republic of China; Joint Graduate School, Yangtze Delta Drug Advanced Research Institute, Nantong 226133, People's Republic of China.
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18
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Fang W, Song X, Li H, Meng F, Lv T, Huang J, Ji X, Lv J, Cai Z, Wang Z. Wnt/β-catenin signaling inhibits oxidative stress-induced ferroptosis to improve interstitial cystitis/bladder pain syndrome by reducing NF-κB. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2024; 1871:119766. [PMID: 38823528 DOI: 10.1016/j.bbamcr.2024.119766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 04/29/2024] [Accepted: 05/23/2024] [Indexed: 06/03/2024]
Abstract
BACKGROUND Interstitial cystitis/bladder pain syndrome (IC/BPS) is a bladder syndrome of unknown etiology. Reactive oxygen species (ROS) plays a major role in ferroptosis and bladder dysfunction of IC/BPS, while the role of ferroptosis in IC/BPS progression is still unclear. This study aims to investigate the role and mechanism of ROS-induced ferroptosis in IC/BPS using cell and rat model. METHODS We collected IC/BPS patient bladder tissue samples and established a LPS-induced IC/BPS rat model (LRM). The level of oxidative stress and ferroptosis in IC/BPS patients and LRM rats was analyzed. Function and regulatory mechanism of ferroptosis in IC/BPS were explored by in vitro and in vivo experiments. RESULTS The patients with IC/BPS showed mast cells and inflammatory cells infiltration in bladder epithelial tissues. Expression of NRF2 was up-regulated, and GPX4 was decreased in IC/BPS patients compared with normal tissues. IC model cells underwent oxidative stress, which induced ferroptosis. These above results were validated in LRM rat models, and inhibition of ferroptosis ameliorated bladder dysfunction in LRM rats. Wnt/β-catenin signaling was deactivated in IC/BPS patients and animals, and activation of Wnt/β-catenin signaling reduced cellular free radical production, thereby inhibited ferroptosis in IC model cells. Mechanistically, the Wnt/β-catenin signaling pathway inhibited oxidative stress-induced ferroptosis by down-regulating NF-κB, thus contributing to recover IC/BPS both in vitro and in vivo. CONCLUSIONS We demonstrate for the first time that oxidative stress-induced ferroptosis plays an important role in the pathology of IC/BPS. Mechanistically, the Wnt/β-catenin signaling suppressed oxidative stress-induced ferroptosis by down-regulating NF-κB to improve bladder injury in IC/BPS.
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Affiliation(s)
- Weilin Fang
- Department of Urology and Andrology, Shanghai Pudong New Area Gongli Hospital, Naval Military Medical University, Shanghai 200135, China
| | - Xin Song
- Department of Urology and Andrology, Shanghai Pudong New Area Gongli Hospital, Naval Military Medical University, Shanghai 200135, China
| | - Hailong Li
- Institute of Molecular Enzymology, Medical College of Soochow University, Suzhou, Jiangsu 215123, China
| | - Fanguo Meng
- Redox Medical Center for Public Health, Soochow University, Suzhou, Jiangsu 215123, China
| | - Tingting Lv
- Department of Urology and Andrology, Shanghai Pudong New Area Gongli Hospital, Naval Military Medical University, Shanghai 200135, China
| | - Jin Huang
- Department of Urology and Andrology, Shanghai Pudong New Area Gongli Hospital, Naval Military Medical University, Shanghai 200135, China
| | - Xiang Ji
- Department of Urology and Andrology, Shanghai Pudong New Area Gongli Hospital, Naval Military Medical University, Shanghai 200135, China
| | - Jianwei Lv
- Department of Urology and Andrology, Shanghai Pudong New Area Gongli Hospital, Naval Military Medical University, Shanghai 200135, China.
| | - Zhikang Cai
- Department of Urology and Andrology, Shanghai Pudong New Area Gongli Hospital, Naval Military Medical University, Shanghai 200135, China
| | - Zhong Wang
- Department of Urology and Andrology, Shanghai Pudong New Area Gongli Hospital, Naval Military Medical University, Shanghai 200135, China
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19
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Shen Z, Yu N, Zhang Y, Jia M, Sun Y, Li Y, Zhao L. The potential roles of HIF-1α in epithelial-mesenchymal transition and ferroptosis in tumor cells. Cell Signal 2024; 122:111345. [PMID: 39134249 DOI: 10.1016/j.cellsig.2024.111345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2024] [Revised: 08/03/2024] [Accepted: 08/09/2024] [Indexed: 08/15/2024]
Abstract
In tumors, the rapid proliferation of cells and the imperfect blood supply system lead to hypoxia, which can regulate the adaptation of tumor cells to the hypoxic environment through hypoxia-inducible factor-1α (HIF-1α) and promote tumor development in multiple ways. Recent studies have found that epithelial-mesenchymal transition (EMT) and ferroptosis play important roles in the progression of tumor cells. The activation of HIF-1α is considered a key factor in inducing EMT in tumor cells. When HIF-1α is activated, it can regulate EMT-related genes, causing tumor cells to gradually lose their epithelial characteristics and acquire more invasive mesenchymal traits. The occurrence of EMT allows tumor cells to better adapt to changes in the surrounding tissue, enhancing their migratory and invasive capabilities, thus promoting tumor progression. At the same time, HIF-1α also plays a crucial regulatory role in ferroptosis in tumor cells. In a hypoxic environment, HIF-1α may affect processes such as iron metabolism and oxidative stress responses, inducing ferroptosis in tumor cells. This article briefly reviews the dual role of HIF-1α in EMT and ferroptosis in tumor cells, helping to gain a deeper understanding of the regulatory pathways of HIF-1α in the development of tumor cells, providing a new perspective for understanding the pathogenesis of tumors. The regulation of HIF-1α may become an important strategy for future tumor therapy.
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Affiliation(s)
- Zhongjun Shen
- Department of Blood Transfusion, Second Hospital of Jilin University, Changchun, 130041 Jilin, China
| | - Na Yu
- Department of Blood Transfusion, Second Hospital of Jilin University, Changchun, 130041 Jilin, China
| | - Yanfeng Zhang
- Department of Blood Transfusion, Second Hospital of Jilin University, Changchun, 130041 Jilin, China
| | - Mingbo Jia
- Department of Blood Transfusion, Second Hospital of Jilin University, Changchun, 130041 Jilin, China
| | - Ying Sun
- Department of Blood Transfusion, Second Hospital of Jilin University, Changchun, 130041 Jilin, China
| | - Yao Li
- Department of Blood Transfusion, Second Hospital of Jilin University, Changchun, 130041 Jilin, China
| | - Liyan Zhao
- Department of Blood Transfusion, Second Hospital of Jilin University, Changchun, 130041 Jilin, China.
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20
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Kieronska-Rudek A, Kij A, Bar A, Kurpinska A, Mohaissen T, Grosicki M, Stojak M, Sternak M, Buczek E, Proniewski B, Kuś K, Suraj-Prazmowska J, Panek A, Pietrowska M, Zapotoczny S, Shanahan CM, Szabo C, Chlopicki S. Phylloquinone improves endothelial function, inhibits cellular senescence, and vascular inflammation. GeroScience 2024; 46:4909-4935. [PMID: 38980631 PMCID: PMC11336140 DOI: 10.1007/s11357-024-01225-w] [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: 01/19/2024] [Accepted: 05/24/2024] [Indexed: 07/10/2024] Open
Abstract
Phylloquinon (PK) and menaquinones (MK) are both naturally occurring compounds belonging to vitamin K group. Present study aimed to comprehensively analyze the influence of PK in several models of vascular dysfunction to determine whether PK has vasoprotective properties, similar to those previously described for MK. Effects of PK and MK on endothelial dysfunction were studied in ApoE/LDLR-/- mice in vivo, in the isolated aorta incubated with TNF, and in vascular cells as regard inflammation and cell senescence (including replicative and stress-induced models of senescence). Moreover, the vascular conversion of exogenous vitamins to endogenous MK-4 was analyzed. PK, as well as MK, given for 8 weeks in diet (10 mg/kg) resulted in comparable improvement in endothelial function in the ApoE/LDLR-/- mice. Similarly, PK and MK prevented TNF-induced impairment of endothelium-dependent vasorelaxation in the isolated aorta. In in vitro studies in endothelial and vascular smooth muscle cells, we identified that both PK and MK displayed anti-senescence effects via decreasing DNA damage while in endothelial cells anti-inflammatory activity was ascribed to the modulation of NFκB activation. The activity of PK and MK was comparable in terms of their effect on senescence and inflammation. Presence of endogenous synthesis of MK-4 from PK in aorta and endothelial and smooth muscle cells suggests a possible involvement of MK in vascular effects of PK. In conclusion, PK and MK display comparable vasoprotective effects, which may be ascribed, at least in part, to the inhibition of cell senescence and inflammation. The vasoprotective effect of PK in the vessel wall can be related to the direct effects of PK, as well as to the action of MK formed from PK in the vascular wall.
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Affiliation(s)
- Anna Kieronska-Rudek
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
- Chair of Pharmacology, Faculty of Medicine, Jagiellonian University Medical College, Krakow, Poland
- Chair of Pharmacology, Faculty of Science and Medicine, University of Fribourg, Fribourg, Switzerland
| | - Agnieszka Kij
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
| | - Anna Bar
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
| | - Anna Kurpinska
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
| | - Tasnim Mohaissen
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
| | - Marek Grosicki
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
| | - Marta Stojak
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
| | - Magdalena Sternak
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
| | - Elżbieta Buczek
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
| | - Bartosz Proniewski
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
| | - Kamil Kuś
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
| | - Joanna Suraj-Prazmowska
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
| | - Agnieszka Panek
- Institute of Nuclear Physics Polish Academy of Sciences, Krakow, Poland
| | - Monika Pietrowska
- Centre for Translational Research and Molecular Biology of Cancer, Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice, Poland
| | - Szczepan Zapotoczny
- Department of Physical Chemistry and Electrochemistry, Faculty of Chemistry, Jagiellonian University, Krakow, Poland
| | - Catherine M Shanahan
- School of Cardiovascular and Metabolic Medicine and Sciences, James Black Centre, King's College London, London, UK
| | - Csaba Szabo
- Chair of Pharmacology, Faculty of Science and Medicine, University of Fribourg, Fribourg, Switzerland
| | - Stefan Chlopicki
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland.
- Chair of Pharmacology, Faculty of Medicine, Jagiellonian University Medical College, Krakow, Poland.
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21
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Yuan M, Shi H, Wang B, Cai J, Yu W, Wang W, Qian Q, Wang Y, Zhou X, Liu J. Targeting SOCS2 alleviates myocardial fibrosis by reducing nuclear translocation of β-catenin. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2024; 1871:119804. [PMID: 39084528 DOI: 10.1016/j.bbamcr.2024.119804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 06/25/2024] [Accepted: 07/20/2024] [Indexed: 08/02/2024]
Abstract
BACKGROUND Myocardial fibrosis is an important pathological feature of dilated cardiomyopathy (DCM). The roles of SOCS2 in fibrosis of different organs are controversial. Herein, we investigated the function and potential mechanism of SOCS2 in myocardial fibrosis. METHODS Bioinformatics, immunohistochemistry (IHC), immunofluorescence (IF), western blot (WB), real-time fluorescence quantitative PCR (qPCR), rat primary myocardial fibroblasts (rCFs) culture, doxorubicin (DOX) induced mouse dilated cardiomyopathy (DCM) model, and in vivo adeno-associated virus (AAV) infection were used to explore the role of SOCS2 in DCM. RESULTS Bioinformatics analysis showed that SOCS2 was positively correlated with fibrosis related factors. SOCS2 was significantly upregulated in patients and mice with DCM. In vivo experiments showed that targeted inhibition of cardiac SOCS2 could improve mouse cardiac function and alleviate myocardial fibrosis. Further research demonstrated that SOCS2 promoted the transformation of myofibroblasts. Knockdown of SOCS2 reduced the nuclear localization of β-catenin, which inhibited the fibrogenic effect of Wnt/β-catenin pathway. In addition, bioinformatics analysis suggested that lymphoid enhancer binding factor 1 (LEF1) was significantly positively correlated with SOCS2. Finally, dual luciferase assays demonstrated that LEF1 could bind to the promoter region of SOCS2, thereby mediating its transcriptional activation. CONCLUSION SOCS2 could activate the Wnt/β-catenin by regulating the nuclear translocation of β-catenin, which induces the transcriptional activation of SOCS2. Overall, these results indicated a positive feedback activation phenomenon between SOCS2, β-catenin and LEF1 in DCM. These results suggested that inhibition of SOCS2 could effectively alleviate the progression of myocardial fibrosis and improve cardiac function.
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Affiliation(s)
- Ming Yuan
- Department of Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, China; Hubei Provincial Engineering Research Center of Minimally Invasive Cardiovascular Surgery, Wuhan 430071, China; Wuhan Clinical Research Center for Minimally Invasive Treatment of Structural Heart Disease, Wuhan 430071, China
| | - Hongjie Shi
- Department of Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, China; Hubei Provincial Engineering Research Center of Minimally Invasive Cardiovascular Surgery, Wuhan 430071, China; Wuhan Clinical Research Center for Minimally Invasive Treatment of Structural Heart Disease, Wuhan 430071, China
| | - Bin Wang
- Department of Cardiovascular Ultrasound, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Jie Cai
- Department of Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, China; Hubei Provincial Engineering Research Center of Minimally Invasive Cardiovascular Surgery, Wuhan 430071, China; Wuhan Clinical Research Center for Minimally Invasive Treatment of Structural Heart Disease, Wuhan 430071, China
| | - Wenjun Yu
- Department of Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, China; Hubei Provincial Engineering Research Center of Minimally Invasive Cardiovascular Surgery, Wuhan 430071, China; Wuhan Clinical Research Center for Minimally Invasive Treatment of Structural Heart Disease, Wuhan 430071, China
| | - Wei Wang
- Department of Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, China; Hubei Provincial Engineering Research Center of Minimally Invasive Cardiovascular Surgery, Wuhan 430071, China; Wuhan Clinical Research Center for Minimally Invasive Treatment of Structural Heart Disease, Wuhan 430071, China
| | - Qiaofeng Qian
- Department of Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, China; Hubei Provincial Engineering Research Center of Minimally Invasive Cardiovascular Surgery, Wuhan 430071, China; Wuhan Clinical Research Center for Minimally Invasive Treatment of Structural Heart Disease, Wuhan 430071, China
| | - Yumou Wang
- Department of Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, China; Hubei Provincial Engineering Research Center of Minimally Invasive Cardiovascular Surgery, Wuhan 430071, China; Wuhan Clinical Research Center for Minimally Invasive Treatment of Structural Heart Disease, Wuhan 430071, China
| | - Xianwu Zhou
- Department of Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, China; Hubei Provincial Engineering Research Center of Minimally Invasive Cardiovascular Surgery, Wuhan 430071, China; Wuhan Clinical Research Center for Minimally Invasive Treatment of Structural Heart Disease, Wuhan 430071, China.
| | - Jinping Liu
- Department of Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, China; Hubei Provincial Engineering Research Center of Minimally Invasive Cardiovascular Surgery, Wuhan 430071, China; Wuhan Clinical Research Center for Minimally Invasive Treatment of Structural Heart Disease, Wuhan 430071, China.
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22
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Shi L, Zeng H, An Z, Chen W, Shan Y, Ji C, Qian H. Extracellular vesicles: Illuminating renal pathophysiology and therapeutic frontiers. Eur J Pharmacol 2024; 978:176720. [PMID: 38880217 DOI: 10.1016/j.ejphar.2024.176720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2024] [Revised: 05/21/2024] [Accepted: 06/05/2024] [Indexed: 06/18/2024]
Abstract
Extracellular vesicles (EVs) are minute sacs released by cells into the extracellular milieu, harboring an array of biomolecules including proteins, nucleic acids, and lipids. Notably, a large number of studies have demonstrated the important involvement of EVs in both physiological and pathological aspects of renal function. EVs can facilitate communication between different renal cells, but it is important to recognize their dual role: they can either transmit beneficial information or lead to renal damage and worsening of existing conditions. The composition of EVs in the context of the kidneys offers valuable insights into the intricate mechanisms underlying specific renal functions or disease states. In addition, mesenchymal stem cell-derived EVs have the potential to alleviate acute and chronic kidney diseases. More importantly, the innate nanoparticle properties of EVs, coupled with their engineering potential, make them effective tools for drug delivery and therapeutic intervention. In this review, we focus on the intricate biological functions of EVs in the kidney. In addition, we explore the emerging role of EVs as diagnostic tools and innovative therapeutic agents in a range of renal diseases.
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Affiliation(s)
- Linru Shi
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, 212013, Jiangsu, China
| | - Houcheng Zeng
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, 212013, Jiangsu, China
| | - Zhongwu An
- Department of Laboratory, Lianyungang Oriental Hospital, Lianyungang, 222042, Jiangsu, China
| | - Wenya Chen
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, 212013, Jiangsu, China
| | - Yunjie Shan
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, 212013, Jiangsu, China
| | - Cheng Ji
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, 212013, Jiangsu, China.
| | - Hui Qian
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, 212013, Jiangsu, China.
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23
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Gao S, Shen R, Li J, Jiang Y, Sun H, Wu X, Li X, Miao C, He M, Wang J, Chen W. N-acetyltransferase 10 mediates cognitive dysfunction through the acetylation of GABA BR1 mRNA in sepsis-associated encephalopathy. Proc Natl Acad Sci U S A 2024; 121:e2410564121. [PMID: 39190359 DOI: 10.1073/pnas.2410564121] [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: 06/01/2024] [Accepted: 07/30/2024] [Indexed: 08/28/2024] Open
Abstract
Sepsis-associated encephalopathy (SAE) is a critical neurological complication of sepsis and represents a crucial factor contributing to high mortality and adverse prognosis in septic patients. This study explored the contribution of NAT10-mediated messenger RNA (mRNA) acetylation in cognitive dysfunction associated with SAE, utilizing a cecal ligation and puncture (CLP)-induced SAE mouse model. Our findings demonstrate that CLP significantly upregulates NAT10 expression and mRNA acetylation in the excitatory neurons of the hippocampal dentate gyrus (DG). Notably, neuronal-specific Nat10 knockdown improved cognitive function in septic mice, highlighting its critical role in SAE. Proteomic analysis, RNA immunoprecipitation, and real-time qPCR identified GABABR1 as a key downstream target of NAT10. Nat10 deletion reduced GABABR1 expression, and subsequently weakened inhibitory postsynaptic currents in hippocampal DG neurons. Further analysis revealed that microglia activation and the release of inflammatory mediators lead to the increased NAT10 expression in neurons. Microglia depletion with PLX3397 effectively reduced NAT10 and GABABR1 expression in neurons, and ameliorated cognitive dysfunction induced by SAE. In summary, our findings revealed that after CLP, NAT10 in hippocampal DG neurons promotes GABABR1 expression through mRNA acetylation, leading to cognitive dysfunction.
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Affiliation(s)
- Shenjia Gao
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Shanghai Key Laboratory of Perioperative Stress and Protection, Shanghai 200032, China
| | - Ruling Shen
- Shanghai Laboratory Animal Research Center, Shanghai 201203, China
| | - Jie Li
- Institutes of Brain Science, State Key Laboratory of Medical Neurobiology and Ministry of Education (MOE) Frontiers Center for Brain Science, Shanghai 200032, China
- Department of Neurobiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Yi Jiang
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Shanghai Key Laboratory of Perioperative Stress and Protection, Shanghai 200032, China
| | - Hao Sun
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Shanghai Key Laboratory of Perioperative Stress and Protection, Shanghai 200032, China
| | - Xinyi Wu
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Shanghai Key Laboratory of Perioperative Stress and Protection, Shanghai 200032, China
| | - Xiya Li
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Shanghai Key Laboratory of Perioperative Stress and Protection, Shanghai 200032, China
| | - Changhong Miao
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Shanghai Key Laboratory of Perioperative Stress and Protection, Shanghai 200032, China
| | - Miao He
- Institutes of Brain Science, State Key Laboratory of Medical Neurobiology and Ministry of Education (MOE) Frontiers Center for Brain Science, Shanghai 200032, China
- Department of Neurobiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Jun Wang
- Department of Integrative Medicine and Neurobiology, School of Basic Medical Science, Shanghai Key Laboratory of Acupuncture Mechanism and Acupoint Function, Fudan University, Shanghai 200032, China
| | - Wankun Chen
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Shanghai Key Laboratory of Perioperative Stress and Protection, Shanghai 200032, China
- Department of Anesthesiology, Shanghai Geriatric Medical Center, Shanghai 201104, China
- Department of Anesthesiology, QingPu Branch of Zhongshan Hospital, Fudan University, Shanghai 201799, China
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24
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Li Y, Vyas SP, Mehta I, Asada N, Dey I, Taylor TC, Bechara R, Amatya N, Aggor FEY, Coleman BM, Li DD, Yamamoto K, Ezenwa O, Sun Y, Sterneck E, McManus CJ, Panzer U, Biswas PS, Savan R, Das J, Gaffen SL. The RNA binding protein Arid5a drives IL-17-dependent autoantibody-induced glomerulonephritis. J Exp Med 2024; 221:e20240656. [PMID: 39058386 DOI: 10.1084/jem.20240656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 06/06/2024] [Accepted: 06/17/2024] [Indexed: 07/28/2024] Open
Abstract
Autoantibody-mediated glomerulonephritis (AGN) arises from dysregulated renal inflammation, with urgent need for improved treatments. IL-17 is implicated in AGN and drives pathology in a kidney-intrinsic manner via renal tubular epithelial cells (RTECs). Nonetheless, downstream signaling mechanisms provoking kidney pathology are poorly understood. A noncanonical RNA binding protein (RBP), Arid5a, was upregulated in human and mouse AGN. Arid5a-/- mice were refractory to AGN, with attenuated myeloid infiltration and impaired expression of IL-17-dependent cytokines and transcription factors (C/EBPβ, C/EBPδ). Transcriptome-wide RIP-Seq revealed that Arid5a inducibly interacts with conventional IL-17 target mRNAs, including CEBPB and CEBPD. Unexpectedly, many Arid5a RNA targets corresponded to translational regulation and RNA processing pathways, including rRNAs. Indeed, global protein synthesis was repressed in Arid5a-deficient cells, and C/EBPs were controlled at the level of protein rather than RNA accumulation. IL-17 prompted Arid5a nuclear export and association with 18S rRNA, a 40S ribosome constituent. Accordingly, IL-17-dependent renal autoimmunity is driven by Arid5a at the level of ribosome interactions and translation.
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Affiliation(s)
- Yang Li
- Division of Rheumatology & Clinical Immunology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Shachi P Vyas
- Division of Rheumatology & Clinical Immunology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Isha Mehta
- Department of Immunology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Nariaki Asada
- III Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Hamburg Center for Translational Immunology, University Medical Center Hamburg-Eppendorf , Hamburg, Germany
| | - Ipsita Dey
- Division of Rheumatology & Clinical Immunology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Tiffany C Taylor
- Division of Rheumatology & Clinical Immunology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Rami Bechara
- Division of Rheumatology & Clinical Immunology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Nilesh Amatya
- Division of Rheumatology & Clinical Immunology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Felix E Y Aggor
- Division of Rheumatology & Clinical Immunology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Bianca M Coleman
- Division of Rheumatology & Clinical Immunology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - De-Dong Li
- Division of Rheumatology & Clinical Immunology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Kenta Yamamoto
- Division of Rheumatology & Clinical Immunology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Ogechukwu Ezenwa
- Department of Immunology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Yeque Sun
- Department of Immunology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Esta Sterneck
- Laboratory of Cell and Developmental Signaling, Center for Cancer Research, National Cancer Institute, Frederick, MD, USA
| | - C Joel McManus
- Department of Biological Sciences, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Ulf Panzer
- III Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Hamburg Center for Translational Immunology, University Medical Center Hamburg-Eppendorf , Hamburg, Germany
| | - Partha S Biswas
- Division of Rheumatology & Clinical Immunology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Ram Savan
- Department of Immunology, School of Medicine, University of Washington, Seattle, WA, USA
| | - Jishnu Das
- Department of Immunology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Sarah L Gaffen
- Division of Rheumatology & Clinical Immunology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
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25
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Ni WJ, Li ZL, Wen XL, Ji JL, Liu H, Yin Q, Jiang LYZ, Zhang YL, Wen Y, Tang TT, Jiang W, Lv LL, Gan WH, Liu BC, Wang B. HIF-1α and adaptor protein LIM and senescent cell antigen-like domains protein 1 axis promotes tubulointerstitial fibrosis by interacting with vimentin in angiotensin II-induced hypertension. Br J Pharmacol 2024; 181:3098-3117. [PMID: 38698737 DOI: 10.1111/bph.16358] [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: 09/22/2023] [Revised: 01/03/2024] [Accepted: 02/05/2024] [Indexed: 05/05/2024] Open
Abstract
BACKGROUND AND PURPOSE Activation of the renin-angiotensin system, as a hallmark of hypertension and chronic kidney diseases (CKD) is the key pathophysiological factor contributing to the progression of tubulointerstitial fibrosis. LIM and senescent cell antigen-like domains protein 1 (LIMS1) plays an essential role in controlling of cell behaviour through the formation of complexes with other proteins. Here, the function and regulation of LIMS1 in angiotensin II (Ang II)-induced hypertension and tubulointerstitial fibrosis was investigated. EXPERIMENTAL APPROACH C57BL/6 mice were treated with Ang II to induce tubulointerstitial fibrosis. Hypoxia-inducible factor-1α (HIF-1α) renal tubular-specific knockout mice or LIMS1 knockdown AAV was used to investigate their effects on Ang II-induced renal interstitial fibrosis. In vitro, HIF-1α or LIMS1 was knocked down or overexpressed in HK2 cells after exposure to Ang II. KEY RESULTS Increased expression of tubular LIMS1 was observed in human kidney with hypertensive nephropathy and in murine kidney from Ang II-induced hypertension model. Tubular-specific knockdown of LIMS1 ameliorated Ang II-induced tubulointerstitial fibrosis in mice. Furthermore, we demonstrated that LIMS1 was transcriptionally regulated by HIF-1α in tubular cells and that tubular HIF-1α knockout ameliorates LIMS1-mediated tubulointerstitial fibrosis. In addition, LIMS1 promotes Ang II-induced tubulointerstitial fibrosis by interacting with vimentin. CONCLUSION AND IMPLICATIONS We conclude that HIF-1α transcriptionally regulated LIMS1 plays a central role in Ang II-induced tubulointerstitial fibrosis through interacting with vimentin. Our finding represents a new insight into the mechanism of Ang II-induced tubulointerstitial fibrosis and provides a novel therapeutic target for progression of CKD.
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Affiliation(s)
- Wei-Jie Ni
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, China
| | - Zuo-Lin Li
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, China
| | - Xian-Li Wen
- Department of Pediatrics, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Jia-Ling Ji
- Department of Pediatrics, The Fourth Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Hong Liu
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, China
| | - Qing Yin
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, China
| | - Liang-Yun-Zi Jiang
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, China
| | - Yi-Lin Zhang
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, China
| | - Yi Wen
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, China
| | - Tao-Tao Tang
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, China
| | - Wei Jiang
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, China
| | - Lin-Li Lv
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, China
| | - Wei-Hua Gan
- Department of Pediatrics, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Bi-Cheng Liu
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, China
| | - Bin Wang
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, China
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Wang Z, Xue H, Sun Y, Wang Q, Sun W, Zhang H. Deciphering the Biological Aging Impact on Alveolar Bone Loss: Insights From α-Klotho and Renal Function Dynamics. J Gerontol A Biol Sci Med Sci 2024; 79:glae172. [PMID: 38995226 DOI: 10.1093/gerona/glae172] [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: 04/09/2024] [Indexed: 07/13/2024] Open
Abstract
Alveolar bone loss is generally considered a chronological age-related disease. As biological aging process is not absolutely determined by increasing age, whether alveolar bone loss is associated with increasing chronological age or biological aging remains unclear. Accurately distinguishing whether alveolar bone loss is chronological age-related or biological aging-related is critical for selecting appropriate clinical treatments. This study aimed to identify the relationship between alveolar bone loss and body aging. In total, 3 635 participants from the National Health and Nutrition Examination Survey and 71 living kidney transplant recipients from Gene Expression Omnibus Datasets were enrolled. Multivariate regression analysis, smooth curve fittings, and generalized additive models were used to explore the association among alveolar bone loss, age, serum α-Klotho level, renal function markers, as well as between preoperative creatinine and renal cortex-related α-Klotho gene expression level. Meanwhile, a 2-sample Mendelian randomization (MR) study was conducted to assess the causal relationship between α-Klotho and periodontal disease (4 376 individuals vs 361 194 individuals). As a biological aging-related indicator, the α-Klotho level was negatively correlated with impaired renal function and alveolar bone loss. Correspondingly, accompanied by decreasing renal function, it was manifested with a downregulated expression level of α-Klotho in the renal cortex and aggravated alveolar bone loss. The MR analysis further identified the negative association between higher genetically predicted α-Klotho concentrations with alveolar bone loss susceptibility using the IVW (odds ratio [OR] = 0.999, p = .005). However, an inversely U-shaped association was observed between chronological age and alveolar bone loss, which is especially stable in men (the optimal cutoff values were both 62 years old). For men above 62 years old, increasing age is converted to protective factor and is accompanied by alleviated alveolar bone loss. Alveolar bone loss that is directly associated with decreased renal function and α-Klotho level was related to biological aging rather than chronological age. The renal-alveolar bone axis could provide a new sight of clinical therapy in alveolar bone loss.
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Affiliation(s)
- Zifei Wang
- Key Laboratory of Oral Diseases Research of Anhui Province, College & Hospital of Stomatology, Anhui Medical University, Hefei, China
| | - Hao Xue
- Department of Stomatology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Yuqiang Sun
- Key Laboratory of Oral Diseases Research of Anhui Province, College & Hospital of Stomatology, Anhui Medical University, Hefei, China
| | - Qing Wang
- Key Laboratory of Oral Diseases Research of Anhui Province, College & Hospital of Stomatology, Anhui Medical University, Hefei, China
| | - Wansu Sun
- Department of Stomatology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Hengguo Zhang
- Key Laboratory of Oral Diseases Research of Anhui Province, College & Hospital of Stomatology, Anhui Medical University, Hefei, China
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Li P, Ma X, Huang D, Gu X. Exploring the roles of non-coding RNAs in liver regeneration. Noncoding RNA Res 2024; 9:945-953. [PMID: 38680418 PMCID: PMC11046251 DOI: 10.1016/j.ncrna.2024.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 03/26/2024] [Accepted: 04/16/2024] [Indexed: 05/01/2024] Open
Abstract
Liver regeneration (LR) is a complex process encompassing three distinct phases: priming, proliferation phase and restoration, all influenced by various regulatory factors. After liver damage or partial resection, the liver tissue demonstrates remarkable restorative capacity, driven by cellular proliferation and repair mechanisms. The essential roles of non-coding RNAs (ncRNAs), predominantly microRNAs (miRNAs), long non-coding RNAs (lncRNAs) and circular RNA (circRNA), in regulating LR have been vastly studied. Additionally, the impact of ncRNAs on LR and their abnormal expression profiles during this process have been extensively documented. Mechanistic investigations have revealed that ncRNAs interact with genes involved in proliferation to regulate hepatocyte proliferation, apoptosis and differentiation, along with liver progenitor cell proliferation and migration. Given the significant role of ncRNAs in LR, an in-depth exploration of their involvement in the liver's self-repair capacity can reveal promising therapeutic strategies for LR and liver-related diseases. Moreover, understanding the unique regenerative potential of the adult liver and the mechanisms and regulatory factors of ncRNAs in LR are crucial for improving current treatment strategies and exploring new therapeutic approaches for various liver-related diseases. This review provides a brief overview of the LR process and the ncRNA expression profiles during this process. Furthermore, we also elaborate on the specific molecular mechanisms through which multiple key ncRNAs regulate the LR process. Finally, based on the expression characteristics of ncRNAs and their interactions with proliferation-associated genes, we explore their potential clinical application, such as developing predictive indicators reflecting liver regenerative activity and manipulating LR processes for therapeutic purposes.
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Affiliation(s)
- Penghui Li
- Department of Oncology, The First Affiliated Hospital, College of Clinical Medicine, Henan University of Science and Technology, Luoyang, 471000, Henan, China
| | - Xiao Ma
- Zhejiang University School of Medicine, Hangzhou, 310000, Zhejiang, China
| | - Di Huang
- Department of Child Health Care, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, Henan, China
| | - Xinyu Gu
- Department of Oncology, The First Affiliated Hospital, College of Clinical Medicine, Henan University of Science and Technology, Luoyang, 471000, Henan, China
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Jin X, Wang S, Luo L, Yan F, He Q. Targeting the Wnt/β-catenin signal pathway for the treatment of gastrointestinal cancer: Potential for advancement. Biochem Pharmacol 2024; 227:116463. [PMID: 39102994 DOI: 10.1016/j.bcp.2024.116463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 07/25/2024] [Accepted: 08/02/2024] [Indexed: 08/07/2024]
Abstract
Gastrointestinal cancers (GICs) are highly prevalent cancers that threaten human health worldwide. The Wnt/β-catenin signaling pathway has been reported to play a pivotal role in the carcinogenesis of GICs. Numerous interventions targeting the Wnt/β-catenin signaling in GICs are currently being tested in clinical trials with promising results. Unfortunately, there are no clinically approved drugs that effectively target this pathway. This comprehensive review aims to evaluate the impact of clinical therapies targeting the Wnt/β-catenin signaling pathway in GICs. By integrating data from bioinformatics databases and recent literature from the past five years, we examine the heterogeneous expression and regulatory mechanisms of Wnt/β-catenin pathway genes and proteins in GICs. Specifically, we focus on expression patterns, mutation frequencies, and clinical prognoses to understand their implications for treatment strategies. Additionally, we discuss recent clinical trial efforts targeting this pathway. Understanding the inhibitors currently under clinical investigation may help optimize foundational research and clinical strategies. We hope that elucidating the current status of precision therapeutic stratification for patients targeting the Wnt/β-catenin pathway will guide future innovations in precision medicine for GICs.
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Affiliation(s)
- Xizhi Jin
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, PR China; Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, Zhejiang University, Hangzhou, Zhejiang 310058, PR China; Innovation Institute for Artificial Intelligence in Medicine, Zhejiang University, Hangzhou, Zhejiang 310018, PR China
| | - Sijie Wang
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, PR China
| | - Lihua Luo
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, PR China.
| | - Fangjie Yan
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, Zhejiang University, Hangzhou, Zhejiang 310058, PR China; Innovation Institute for Artificial Intelligence in Medicine, Zhejiang University, Hangzhou, Zhejiang 310018, PR China.
| | - Qiaojun He
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, Zhejiang University, Hangzhou, Zhejiang 310058, PR China.
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Smith JP, Paxton R, Medrano S, Sheffield NC, Sequeira-Lopez MLS, Ariel Gomez R. Inhibition of Renin Expression Is Regulated by an Epigenetic Switch From an Active to a Poised State. Hypertension 2024; 81:1869-1882. [PMID: 38989586 PMCID: PMC11337216 DOI: 10.1161/hypertensionaha.124.22886] [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: 02/13/2024] [Accepted: 07/02/2024] [Indexed: 07/12/2024]
Abstract
BACKGROUND Renin-expressing cells are myoendocrine cells crucial for the maintenance of homeostasis. Renin is regulated by cAMP, p300 (histone acetyltransferase p300)/CBP (CREB-binding protein), and Brd4 (bromodomain-containing protein 4) proteins and associated pathways. However, the specific regulatory changes that occur following inhibition of these pathways are not clear. METHODS We treated As4.1 cells (tumoral cells derived from mouse juxtaglomerular cells that constitutively express renin) with 3 inhibitors that target different factors required for renin transcription: H-89-dihydrochloride, PKA (protein kinase A) inhibitor; JQ1, Brd4 bromodomain inhibitor; and A-485, p300/CBP inhibitor. We performed assay for transposase-accessible chromatin with sequencing (ATAC-seq), single-cell RNA sequencing, cleavage under targets and tagmentation (CUT&Tag), and chromatin immunoprecipitation sequencing for H3K27ac (acetylation of lysine 27 of the histone H3 protein) and p300 binding on biological replicates of treated and control As4.1 cells. RESULTS In response to each inhibitor, Ren1 expression was significantly reduced and reversible upon washout. Chromatin accessibility at the Ren1 locus did not markedly change but was globally reduced at distal elements. Inhibition of PKA led to significant reductions in H3K27ac and p300 binding specifically within the Ren1 super-enhancer region. Further, we identified enriched TF (transcription factor) motifs shared across each inhibitory treatment. Finally, we identified a set of 9 genes with putative roles across each of the 3 renin regulatory pathways and observed that each displayed differentially accessible chromatin, gene expression, H3K27ac, and p300 binding at their respective loci. CONCLUSIONS Inhibition of renin expression in cells that constitutively synthesize and release renin is regulated by an epigenetic switch from an active to poised state associated with decreased cell-cell communication and an epithelial-mesenchymal transition. This work highlights and helps define the factors necessary for renin cells to alternate between myoendocrine and contractile phenotypes.
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Affiliation(s)
- Jason P. Smith
- Department of Pediatrics, Child Health Research Center, University of Virginia, Charlottesville, Virginia
| | - Robert Paxton
- Department of Pediatrics, Child Health Research Center, University of Virginia, Charlottesville, Virginia
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Silvia Medrano
- Department of Pediatrics, Child Health Research Center, University of Virginia, Charlottesville, Virginia
| | - Nathan C. Sheffield
- Center for Public Health Genomics, University of Virginia, Charlottesville, Virginia
- Department of Public Health Sciences, University of Virginia, Charlottesville, Virginia
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia
- Department of Biochemistry and Molecular Genetics, University of Virginia, Charlottesville, Virginia
| | | | - R. Ariel Gomez
- Department of Pediatrics, Child Health Research Center, University of Virginia, Charlottesville, Virginia
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Li SS, Liu QJ, Bao JX, Lu MT, Deng BQ, Li WW, Cao CC. Counteracting TGM2 by a Fibroin peptide ameliorated Adriamycin-induced nephropathy via regulation of lipid metabolism through PANX1-PPAR α/PANK1 pathway. Transl Res 2024; 271:26-39. [PMID: 38734063 DOI: 10.1016/j.trsl.2024.05.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 04/28/2024] [Accepted: 05/08/2024] [Indexed: 05/13/2024]
Abstract
Peptide drug discovery for the treatment of chronic kidney disease (CKD) has attracted much attention in recent years due to the urge to find novel drugs and mechanisms to delay the progression of the disease. In this study, we identified a novel short peptide (named YR-7, primary sequence 'YEVEDYR') from the natural Fibroin protein, and demonstrated that it significantly alleviated pathological renal changes in ADR-induced nephropathy. PANX1 was identified as the most notably upregulated component by RNA-sequencing. Further analysis showed that YR-7 alleviated the accumulation of lipid droplets via regulation of the lipid metabolism-related proteins PPAR α and PANK1. Using chemical proteomics, fluorescence polarization, microscale thermophoresis, surface plasmon resonance, and molecular docking, YR-7 was proven to directly bind to β-barrel domains of TGM2 protein to inhibit lipid accumulation. TGM2 knockdown in vivo increased the protein levels of PPAR α and PANK1 while decreased the levels of fibrotic-related proteins to alleviate nephropathy. In vitro, overexpression TGM2 reversed the protective effects of YR-7. Co-immunoprecipitation indicated that TGM2 interacted with PANX1 to promote lipid deposition, and pharmacological inhibition or knockdown of PANX1 decreased the levels of PPAR α and PANK1 induced by ADR. Taken together, our findings revealed that TGM2-PANX1 interaction in promoting lipid deposition may be a new signaling in promoting ADR-induced nephropathy. And a novel natural peptide could ameliorate renal fibrosis through TGM2-PANX1-PPAR α/PANK1 pathway, which highlight the potential of it in the treatment of CKD.
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Affiliation(s)
- Shan-Shan Li
- Department of Nephrology, Sir Run Run hospital, Nanjing Medical University, Nanjing, China
| | - Qiao-Juan Liu
- Department of Nephrology, Sir Run Run hospital, Nanjing Medical University, Nanjing, China
| | - Jia-Xin Bao
- Department of Nephrology, Sir Run Run hospital, Nanjing Medical University, Nanjing, China
| | - Meng-Ting Lu
- Department of Nephrology, Sir Run Run hospital, Nanjing Medical University, Nanjing, China
| | - Bing-Quan Deng
- Department of Nephrology, Sir Run Run hospital, Nanjing Medical University, Nanjing, China
| | - Wen-Wen Li
- Department of Nephrology, Sir Run Run hospital, Nanjing Medical University, Nanjing, China
| | - Chang-Chun Cao
- Department of Nephrology, Sir Run Run hospital, Nanjing Medical University, Nanjing, China.
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Ye Y, Li M, Chen W, Wang H, He X, Liu N, Guo Z, Zheng C. Natural polysaccharides as promising reno-protective agents for the treatment of various kidney injury. Pharmacol Res 2024; 207:107301. [PMID: 39009291 DOI: 10.1016/j.phrs.2024.107301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 06/13/2024] [Accepted: 07/07/2024] [Indexed: 07/17/2024]
Abstract
Renal injury, a prevalent clinical outcome with multifactorial etiology, imposes a substantial burden on society. Currently, there remains a lack of effective management and treatments. Extensive research has emphasized the diverse biological effects of natural polysaccharides, which exhibit promising potential for mitigating renal damage. This review commences with the pathogenesis of four common renal diseases and the shared mechanisms underlying renal injury. The renoprotective roles of polysaccharides in vivo and in vitro are summarized in the following five aspects: anti-oxidative stress effects, anti-apoptotic effects, anti-inflammatory effects, anti-fibrotic effects, and gut modulatory effects. Furthermore, we explore the structure-activity relationship and bioavailability of polysaccharides in relation to renal injury, as well as investigate their utility as biomaterials for alleviating renal injury. The clinical experiments of polysaccharides applied to patients with chronic kidney disease are also reviewed. Broadly, this review provides a comprehensive perspective on the research direction of natural polysaccharides in the context of renal injury, with the primary aim to serve as a reference for the clinical development of polysaccharides as pharmaceuticals and prebiotics for the treatment of kidney diseases.
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Affiliation(s)
- Yufei Ye
- Department of Chinese Medicine Authentication, Faculty of Pharmacy, Second Military Medical University/Naval Medical University, 325 Guohe Road, Shanghai 200433, China; Department of Nephrology, Changhai Hospital, Second Military Medical University/Naval Medical University, 168 Changhai Road, Shanghai 200433, China
| | - Maoting Li
- Department of Chinese Medicine Authentication, Faculty of Pharmacy, Second Military Medical University/Naval Medical University, 325 Guohe Road, Shanghai 200433, China; Department of Nephrology, Naval Medical Center of PLA, Second Military Medical University/Naval Medical University, 338 West Huaihai Road, Shanghai 200052, China
| | - Wei Chen
- Department of Nephrology, Changhai Hospital, Second Military Medical University/Naval Medical University, 168 Changhai Road, Shanghai 200433, China
| | - Hongrui Wang
- Department of Chinese Medicine Authentication, Faculty of Pharmacy, Second Military Medical University/Naval Medical University, 325 Guohe Road, Shanghai 200433, China
| | - Xuhui He
- Department of Chinese Medicine Authentication, Faculty of Pharmacy, Second Military Medical University/Naval Medical University, 325 Guohe Road, Shanghai 200433, China
| | - Nanmei Liu
- Department of Nephrology, Naval Medical Center of PLA, Second Military Medical University/Naval Medical University, 338 West Huaihai Road, Shanghai 200052, China.
| | - Zhiyong Guo
- Department of Nephrology, Changhai Hospital, Second Military Medical University/Naval Medical University, 168 Changhai Road, Shanghai 200433, China.
| | - Chengjian Zheng
- Department of Chinese Medicine Authentication, Faculty of Pharmacy, Second Military Medical University/Naval Medical University, 325 Guohe Road, Shanghai 200433, China.
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Miguel V, Alcalde-Estévez E, Sirera B, Rodríguez-Pascual F, Lamas S. Metabolism and bioenergetics in the pathophysiology of organ fibrosis. Free Radic Biol Med 2024; 222:85-105. [PMID: 38838921 DOI: 10.1016/j.freeradbiomed.2024.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Revised: 05/15/2024] [Accepted: 06/02/2024] [Indexed: 06/07/2024]
Abstract
Fibrosis is the tissue scarring characterized by excess deposition of extracellular matrix (ECM) proteins, mainly collagens. A fibrotic response can take place in any tissue of the body and is the result of an imbalanced reaction to inflammation and wound healing. Metabolism has emerged as a major driver of fibrotic diseases. While glycolytic shifts appear to be a key metabolic switch in activated stromal ECM-producing cells, several other cell types such as immune cells, whose functions are intricately connected to their metabolic characteristics, form a complex network of pro-fibrotic cellular crosstalk. This review purports to clarify shared and particular cellular responses and mechanisms across organs and etiologies. We discuss the impact of the cell-type specific metabolic reprogramming in fibrotic diseases in both experimental and human pathology settings, providing a rationale for new therapeutic interventions based on metabolism-targeted antifibrotic agents.
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Affiliation(s)
- Verónica Miguel
- Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain.
| | - Elena Alcalde-Estévez
- Program of Physiological and Pathological Processes, Centro de Biología Molecular "Severo Ochoa" (CBMSO) (CSIC-UAM), Madrid, Spain; Department of Systems Biology, Facultad de Medicina y Ciencias de la Salud, Universidad de Alcalá, Alcalá de Henares, Spain
| | - Belén Sirera
- Program of Physiological and Pathological Processes, Centro de Biología Molecular "Severo Ochoa" (CBMSO) (CSIC-UAM), Madrid, Spain
| | - Fernando Rodríguez-Pascual
- Program of Physiological and Pathological Processes, Centro de Biología Molecular "Severo Ochoa" (CBMSO) (CSIC-UAM), Madrid, Spain
| | - Santiago Lamas
- Program of Physiological and Pathological Processes, Centro de Biología Molecular "Severo Ochoa" (CBMSO) (CSIC-UAM), Madrid, Spain.
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Edmonston D, Fuchs MAA, Burke EJ, Isakova T, Wolf M. Klotho and Clinical Outcomes in CKD: Findings From the Chronic Renal Insufficiency Cohort (CRIC) Study. Am J Kidney Dis 2024; 84:349-360.e1. [PMID: 38583756 PMCID: PMC11344676 DOI: 10.1053/j.ajkd.2024.02.008] [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: 06/28/2023] [Revised: 02/08/2024] [Accepted: 02/09/2024] [Indexed: 04/09/2024]
Abstract
RATIONALE & OBJECTIVE Klotho deficiency may affect clinical outcomes in chronic kidney disease (CKD) through fibroblast growth factor-23 (FGF23)-dependent and -independent pathways. However, the association between circulating Klotho and clinical outcomes in CKD remains unresolved and was the focus of this study. STUDY DESIGN Prospective observational study. SETTING & PARTICIPANTS 1,088 participants in the Chronic Renal Insufficiency Cohort (CRIC) Study with an estimated glomerular filtration rate (eGFR) of 20-70mL/min/1.73m2. EXPOSURE Plasma Klotho level at the year-1 study visit. OUTCOMES 5-year risks of all-cause mortality, heart failure hospitalization, atherosclerotic cardiovascular events, and a composite kidney end point that comprised a sustained 50% decrease in eGFR, dialysis, kidney transplant, or eGFR<15mL/min/1.73m2. ANALYTICAL APPROACH We divided Klotho into 6 groups to account for its nonnormal distribution. We used Cox proportional hazards regression and subdistribution hazards models to compare survival and clinical outcomes, respectively, between Klotho groups. We sequentially adjusted for demographic characteristics, kidney function, cardiovascular risk factors, sample age, and FGF23. RESULTS Mean eGFR was 42mL/min/1.73m2, and median Klotho concentration was 0.31ng/mL (IQR, 0.10-3.27ng/mL). When compared with the lowest Klotho group, survival (HR, 0.77; 95% CI, 0.32-1.89), heart failure hospitalization (HR, 1.10; 95% CI, 0.38-3.17), atherosclerotic cardiovascular events (HR, 1.19; 95% CI, 0.57-2.52), and CKD progression (HR, 1.05; 95% CI, 0.58-1.91) did not differ in the high Klotho group. In contrast, FGF23 was significantly associated with mortality and heart failure hospitalization independent of Klotho levels. LIMITATIONS Despite adjustments, we cannot exclude the potential influence of residual confounding or sample storage on the results. A single measurement of plasma Klotho concentration may not capture Klotho patterns over time. CONCLUSIONS In a large, diverse, well-characterized CKD cohort, Klotho was not associated with clinical outcomes, and Klotho deficiency did not confound the association of FGF23 with mortality or heart failure hospitalization. PLAIN-LANGUAGE SUMMARY Klotho is a protein that is vital to mineral metabolism and aging and may protect against cardiovascular disease. Klotho levels decrease in chronic kidney disease (CKD), but the association between Klotho and clinical outcomes in CKD remains uncertain. In a prospective cohort study of more than 1,000 people with CKD, circulating Klotho levels were not associated with kidney disease progression, cardiovascular outcomes, or mortality. These results suggest that the decrease in circulating Klotho levels in CKD does not play a prominent role in the development of poor clinical outcomes.
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Affiliation(s)
- Daniel Edmonston
- Division of Nephrology, Department of Medicine, Duke University School of Medicine, Durham, NC; Duke Clinical Research Institute, Duke University School of Medicine, Durham, NC.
| | - Michaela A A Fuchs
- Division of Nephrology, Department of Medicine, Duke University School of Medicine, Durham, NC
| | - Emily J Burke
- Division of Nephrology, Department of Medicine, Duke University School of Medicine, Durham, NC
| | - Tamara Isakova
- Division of Nephrology and Hypertension, Department of Medicine and Center for Translational Metabolism and Health, Institute for Public Health and Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL
| | - Myles Wolf
- Division of Nephrology, Department of Medicine, Duke University School of Medicine, Durham, NC; Duke Clinical Research Institute, Duke University School of Medicine, Durham, NC
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Unger Avila P, Padvitski T, Leote AC, Chen H, Saez-Rodriguez J, Kann M, Beyer A. Gene regulatory networks in disease and ageing. Nat Rev Nephrol 2024; 20:616-633. [PMID: 38867109 DOI: 10.1038/s41581-024-00849-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/15/2024] [Indexed: 06/14/2024]
Abstract
The precise control of gene expression is required for the maintenance of cellular homeostasis and proper cellular function, and the declining control of gene expression with age is considered a major contributor to age-associated changes in cellular physiology and disease. The coordination of gene expression can be represented through models of the molecular interactions that govern gene expression levels, so-called gene regulatory networks. Gene regulatory networks can represent interactions that occur through signal transduction, those that involve regulatory transcription factors, or statistical models of gene-gene relationships based on the premise that certain sets of genes tend to be coexpressed across a range of conditions and cell types. Advances in experimental and computational technologies have enabled the inference of these networks on an unprecedented scale and at unprecedented precision. Here, we delineate different types of gene regulatory networks and their cell-biological interpretation. We describe methods for inferring such networks from large-scale, multi-omics datasets and present applications that have aided our understanding of cellular ageing and disease mechanisms.
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Affiliation(s)
- Paula Unger Avila
- Cluster of Excellence on Cellular Stress Responses in Aging-associated Diseases (CECAD), University of Cologne, Cologne, Germany
| | - Tsimafei Padvitski
- Cluster of Excellence on Cellular Stress Responses in Aging-associated Diseases (CECAD), University of Cologne, Cologne, Germany
| | - Ana Carolina Leote
- Cluster of Excellence on Cellular Stress Responses in Aging-associated Diseases (CECAD), University of Cologne, Cologne, Germany
| | - He Chen
- Cluster of Excellence on Cellular Stress Responses in Aging-associated Diseases (CECAD), University of Cologne, Cologne, Germany
- Department II of Internal Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Julio Saez-Rodriguez
- Faculty of Medicine and Heidelberg University Hospital, Institute for Computational Biomedicine, Heidelberg University, Heidelberg, Germany
| | - Martin Kann
- Department II of Internal Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
- Center for Molecular Medicine Cologne, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Andreas Beyer
- Cluster of Excellence on Cellular Stress Responses in Aging-associated Diseases (CECAD), University of Cologne, Cologne, Germany.
- Center for Molecular Medicine Cologne, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany.
- Institute for Genetics, Faculty of Mathematics and Natural Sciences, University of Cologne, Cologne, Germany.
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Girardi ACC, Polidoro JZ, Castro PC, Pio-Abreu A, Noronha IL, Drager LF. Mechanisms of heart failure and chronic kidney disease protection by SGLT2 inhibitors in nondiabetic conditions. Am J Physiol Cell Physiol 2024; 327:C525-C544. [PMID: 38881421 DOI: 10.1152/ajpcell.00143.2024] [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: 02/29/2024] [Revised: 06/11/2024] [Accepted: 06/11/2024] [Indexed: 06/18/2024]
Abstract
Sodium-glucose cotransporter 2 inhibitors (SGLT2is), initially developed for type 2 diabetes (T2D) treatment, have demonstrated significant cardiovascular and renal benefits in heart failure (HF) and chronic kidney disease (CKD), irrespective of T2D. This review provides an analysis of the multifaceted mechanisms underlying the cardiorenal benefits of SGLT2i in HF and CKD outside of the T2D context. Eight major aspects of the protective effects of SGLT2i beyond glycemic control are explored: 1) the impact on renal hemodynamics and tubuloglomerular feedback; 2) the natriuretic effects via proximal tubule Na+/H+ exchanger NHE3 inhibition; 3) the modulation of neurohumoral pathways with evidence of attenuated sympathetic activity; 4) the impact on erythropoiesis, not only in the context of local hypoxia but also systemic inflammation and iron regulation; 5) the uricosuria and mitigation of the hyperuricemic environment in cardiorenal syndromes; 6) the multiorgan metabolic reprogramming including the potential induction of a fasting-like state, improvement in glucose and insulin tolerance, and stimulation of lipolysis and ketogenesis; 7) the vascular endothelial growth factor A (VEGF-A) upregulation and angiogenesis, and 8) the direct cardiac effects. The intricate interplay between renal, neurohumoral, metabolic, and cardiac effects underscores the complexity of SGLT2i actions and provides valuable insights into their therapeutic implications for HF and CKD. Furthermore, this review sets the stage for future research to evaluate the individual contributions of these mechanisms in diverse clinical settings.
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Affiliation(s)
- Adriana C C Girardi
- Laboratório de Genética e Cardiologia Molecular, Faculdade de Medicina, Instituto do Coração (InCor), Hospital das Clínicas HCFMUSP, Universidade de São Paulo, São Paulo, Brazil
| | - Juliano Z Polidoro
- Laboratório de Genética e Cardiologia Molecular, Faculdade de Medicina, Instituto do Coração (InCor), Hospital das Clínicas HCFMUSP, Universidade de São Paulo, São Paulo, Brazil
| | - Paulo C Castro
- Laboratório de Genética e Cardiologia Molecular, Faculdade de Medicina, Instituto do Coração (InCor), Hospital das Clínicas HCFMUSP, Universidade de São Paulo, São Paulo, Brazil
| | - Andrea Pio-Abreu
- Disciplina de Nefrologia, Faculdade de Medicina, Hospital das Clínicas HCFMUSP, Universidade de São Paulo, São Paulo, Brazil
| | - Irene L Noronha
- Disciplina de Nefrologia, Faculdade de Medicina, Hospital das Clínicas HCFMUSP, Universidade de São Paulo, São Paulo, Brazil
| | - Luciano F Drager
- Disciplina de Nefrologia, Faculdade de Medicina, Hospital das Clínicas HCFMUSP, Universidade de São Paulo, São Paulo, Brazil
- Unidade de Hipertensão, Faculdade de Medicina, Instituto do Coração (InCor), Hospital das Clínicas HCFMUSP, Universidade de São Paulo, São Paulo, Brazil
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Ariyeloye S, Kämmerer S, Klapproth E, Wielockx B, El-Armouche A. Intertwined regulators: hypoxia pathway proteins, microRNAs, and phosphodiesterases in the control of steroidogenesis. Pflugers Arch 2024; 476:1383-1398. [PMID: 38355819 PMCID: PMC11310285 DOI: 10.1007/s00424-024-02921-4] [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: 12/05/2023] [Revised: 01/25/2024] [Accepted: 02/05/2024] [Indexed: 02/16/2024]
Abstract
Oxygen sensing is of paramount importance for maintaining cellular and systemic homeostasis. In response to diminished oxygen levels, the hypoxia-inducible factors (HIFs) orchestrate various biological processes. These pivotal transcription factors have been identified as key regulators of several biological events. Notably, extensive research from our group and others has demonstrated that HIF1α exerts an inverse regulatory effect on steroidogenesis, leading to the suppression of crucial steroidogenic enzyme expression and a subsequent decrease in steroid levels. These steroid hormones occupy pivotal roles in governing a myriad of physiological processes. Substantial or prolonged fluctuations in steroid levels carry detrimental consequences across multiple organ systems and underlie various pathological conditions, including metabolic and immune disorders. MicroRNAs serve as potent mediators of multifaceted gene regulatory mechanisms, acting as influential epigenetic regulators that modulate a broad spectrum of gene expressions. Concomitantly, phosphodiesterases (PDEs) play a crucial role in governing signal transduction. PDEs meticulously manage intracellular levels of both cAMP and cGMP, along with their respective signaling pathways and downstream targets. Intriguingly, an intricate interplay seems to exist between hypoxia signaling, microRNAs, and PDEs in the regulation of steroidogenesis. This review highlights recent advances in our understanding of the role of microRNAs during hypoxia-driven processes, including steroidogenesis, as well as the possibilities that exist in the application of HIF prolyl hydroxylase (PHD) inhibitors for the modulation of steroidogenesis.
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Affiliation(s)
- Stephen Ariyeloye
- Institute of Clinical Chemistry and Laboratory Medicine, Dresden, Germany
| | - Susanne Kämmerer
- Department of Pharmacology and Toxicology, Medical Faculty, Technische Universität Dresden, Fetscherstrasse 74, 01307, Dresden, Germany
| | - Erik Klapproth
- Department of Pharmacology and Toxicology, Medical Faculty, Technische Universität Dresden, Fetscherstrasse 74, 01307, Dresden, Germany
| | - Ben Wielockx
- Institute of Clinical Chemistry and Laboratory Medicine, Dresden, Germany.
| | - Ali El-Armouche
- Department of Pharmacology and Toxicology, Medical Faculty, Technische Universität Dresden, Fetscherstrasse 74, 01307, Dresden, Germany.
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Pang S, Xie B, Feng B, Xu G, Ye Q, Chen X, Ruan L, Chen H, Pan SL, Xue C, Li W. miR-542-5p targets GREM1 to affect the progression of renal fibrosis. J Biochem Mol Toxicol 2024; 38:e23818. [PMID: 39180371 DOI: 10.1002/jbt.23818] [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: 04/06/2024] [Revised: 07/11/2024] [Accepted: 08/13/2024] [Indexed: 08/26/2024]
Abstract
Renal fibrosis (RF) is a typical pathological presentation of end-stage chronic kidney disease (CKD) and autosomal dominant polycystic kidney disease (ADPKD). However, the precise regulatory mechanisms governing this re-expression process remain unclear. Differentially expressed microRNAs (miRNAs) associated with RF were screened by microarray analysis using the Gene Expression Omnibus (GEO) database. The miRNAs upstream of the genes in question were predicted using the miRWalk database. The miRNAs involved in the two GEO data sets were intersected to identify key miRNAs; their regulatory pathways were investigated using Gene Ontology and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis. Subsequently, the effects and the underlying mechanisms of target miRNA on RF were examined in a unilateral ureteral obstruction (UUO)-induced mice renal fibrotic model and a transforming growth factor-β1 (TGF-β1)-induced tubular epithelium (HK-2) fibrotic cell model. In total, 109 and 32 differentially expressed miRNAs were identified in the GSE133530 and GSE80247 data sets, respectively. GREM1 was identified as a hub gene, where its 2196 upstream miRNAs were predicted; miR-574-5p was found to be downregulated and closely related to fibrosis after data set intersection and enrichment analyses, thus was selected for further investigation. A differential expression heatmap (GSE162794) showed that miR-542-5p was downregulated. The expression of GREM1 mRNA was upregulated, whereas that of miR-542-5p was downregulated in UUO mice and fibrotic HK-2 cells as compared with the relevant controls. The binding site of miR-542-5p was predicted at the 3'UTR region of GREM1 and was confirmed by subsequent dual luciferase reporter gene assay. Western blot analysis showed that Gremlin-1 and Fibronectin were significantly upregulated after induction of TGF-β1; when miR-542-5p was overexpressed or GREM1 mRNA was interfered, the upregulations of Gremlin-1 and Fibronectin were significantly reduced. Our research demonstrates that miR-542-5p plays a critical role in the progression of RF, and thus may be a promising therapeutic target for CKD and ADPKD.
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Affiliation(s)
- Shuting Pang
- Department of Nephrology, The Second Affiliated Hospital of Guangxi Medical University, Guangxi Zhuang Autonomous Region, Nanning, China
| | - Boji Xie
- Department of Nephrology, The Second Affiliated Hospital of Guangxi Medical University, Guangxi Zhuang Autonomous Region, Nanning, China
| | - Bingmei Feng
- Department of Nephrology, The Second Affiliated Hospital of Guangxi Medical University, Guangxi Zhuang Autonomous Region, Nanning, China
| | - Guiling Xu
- Department of Nephrology, The Second Affiliated Hospital of Guangxi Medical University, Guangxi Zhuang Autonomous Region, Nanning, China
| | - Qinglin Ye
- Department of Nephrology, The Second Affiliated Hospital of Guangxi Medical University, Guangxi Zhuang Autonomous Region, Nanning, China
| | - Xuesong Chen
- Department of Nephrology, The Second Affiliated Hospital of Guangxi Medical University, Guangxi Zhuang Autonomous Region, Nanning, China
| | - Liangping Ruan
- Department of Nephrology, The Second Affiliated Hospital of Guangxi Medical University, Guangxi Zhuang Autonomous Region, Nanning, China
| | - Hong Chen
- Department of Nephrology, The Second Affiliated Hospital of Guangxi Medical University, Guangxi Zhuang Autonomous Region, Nanning, China
| | - Shang-Ling Pan
- Department of Pathophysiology, School of Preclinical Medicine, Guangxi Zhuang Autonomous Region, Guangxi Medical University, Nanning, China
| | - Chao Xue
- Department of Nephrology, The Second Affiliated Hospital of Guangxi Medical University, Guangxi Zhuang Autonomous Region, Nanning, China
| | - Wei Li
- Department of Nephrology, The Second Affiliated Hospital of Guangxi Medical University, Guangxi Zhuang Autonomous Region, Nanning, China
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Pan C, Wang X, Fan Z, Mao W, Shi Y, Wu Y, Liu T, Xu Z, Wang H, Chen H. Polystyrene microplastics facilitate renal fibrosis through accelerating tubular epithelial cell senescence. Food Chem Toxicol 2024; 191:114888. [PMID: 39053876 DOI: 10.1016/j.fct.2024.114888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 07/18/2024] [Accepted: 07/22/2024] [Indexed: 07/27/2024]
Abstract
Microplastics (MPs), emerging contaminants, are easily transported and enriched in the kidney, suggesting the kidney is susceptible to the toxicity of MPs. In this study, we explored the toxicity of MPs, including unmodified polystyrene (PS), negative-charged PS-SO3H, and positive-charged PS-NH2 MPs, in mice models for 28 days at a human equivalent concentration. The results showed MPs significantly increased levels of UREA, urea nitrogen (BUN), creatinine (CREA), and uric acid (UA) levels in serum and white blood cells, protein, and microalbumin in urine. In the kidney, MPs triggered persistent inflammation and renal fibrosis, which was caused by the increased senescence of tubular epithelial cells. Moreover, we identified the critical role of the Klotho/Wnt/β-catenin signaling pathway in the process of MPs induced senescence of tubular epithelial cells, promoting the epithelial-mesenchymal transformation of epithelial cells. MPs supported the secretion of TGF-β1 by senescent epithelial cells and induced the activation of renal fibroblasts. On the contrary, restoring the function of Klotho can alleviate the senescence of epithelial cells and reverse the activation of fibroblasts. Thus, our study revealed new evidence between MPs and renal fibrosis, and adds an important piece to the whole picture of the plastic pollution on people's health.
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Affiliation(s)
- Chun Pan
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, China
| | - Xinglong Wang
- Department of Orthopedics, The Fifth People's Hospital of Huai'an, Huai'an, China
| | - Zhencheng Fan
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, China
| | - Wenwen Mao
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, China
| | - Yujie Shi
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, China
| | - Yin Wu
- Department of Orthopedics, Affiliated Hospital of Yangzhou University, Yangzhou, China; Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, China
| | - Tingting Liu
- Department of Orthopedics, Affiliated Hospital of Yangzhou University, Yangzhou, China
| | - Zhuobin Xu
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, China
| | - Huihui Wang
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, China
| | - Hao Chen
- Department of Orthopedics, Affiliated Hospital of Yangzhou University, Yangzhou, China.
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Song A, Yan R, Qiu Y, Yin X, Xiong J, Yao G, Zhang C. Rhodojaponin VI ameliorates podocyte injury related with MDM2/Notch1 pathway in rat experimental membranous nephropathy. Nephrology (Carlton) 2024; 29:555-564. [PMID: 39011853 DOI: 10.1111/nep.14337] [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: 02/19/2024] [Revised: 06/02/2024] [Accepted: 06/05/2024] [Indexed: 07/17/2024]
Abstract
AIM Rhodojaponin VI (R-VI) is the key compound of Rhododendron molle G. Don (Ericaceae) (RM) with effective clinical application in rheumatoid arthritis and chronic glomerulonephritis. In our study, we tried to explore the effect of R-VI on the rat model of membranous nephropathy. METHODS The rat model of passive heymann nephritis (PHN) was established by injecting sheep anti-rat Fx1A serum at a single dose through the tail. The rats were orally administered R-VI (0.02 mg/kg) or FK506 (1 mg/kg) 1 day before PHN induction, which was kept for 4 weeks. Urine and blood samples as well as kidney tissue were collected for analysis. C5b-9-induced human podocyte cell (HPC) was employed for experiments in vitro. RESULTS R-VI could alleviate glomerulonephritis progression and podocyte injury in PHN rats, as indicated by the decreased proteinuria and the elevated level of albumin, accompanied with reduced immune deposits, reversed podocyte injury in the kidneys. Furthermore, R-VI suppressed murine double minute 2 (MDM2) expression without the alteration in the protein level of p53 and decreased Notch1 expression independent of Numb regulation. Pre-treatment with R-VI in C5b-9-induced HPC blocked MDM2/Notch1 signalling pathway. CONCLUSION Thus, R-VI ameliorates podocyte injury in rats with PHN, which was probably related with MDM2/Notch1 signalling pathway.
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Affiliation(s)
- Anni Song
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ruiwei Yan
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yue Qiu
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xingjie Yin
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jing Xiong
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Guangmin Yao
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, 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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Kim G, Yoo HJ, Yoo MK, Choi JH, Lee KW. Methylglyoxal-derived hydroimidazolone-1/RAGE axis induces renal oxidative stress and renal fibrosis in vitro and in vivo. Toxicology 2024; 507:153887. [PMID: 39019314 DOI: 10.1016/j.tox.2024.153887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 07/11/2024] [Accepted: 07/13/2024] [Indexed: 07/19/2024]
Abstract
Advanced glycation end products (AGEs) are important contributors to the progression of chronic kidney diseases (CKD), including renal fibrosis. Although the relationship between AGEs and renal fibrosis has been well studied, the mechanisms of individual AGE-induced renal injury remain poorly understood. This study investigated the adverse effect of methylglyoxal-derived hydroimidazolone-1 (MG-H1), a methylglyoxal (MG)-derived AGE generated by the glycation of MG and arginine residues, on kidney damage. We aimed to elucidate the molecular mechanisms of MG-H1-mediated renal injury and fibrosis, focusing on the receptor for AGEs (RAGE) signaling and its effects on the Wnt/β-catenin pathway, MAPK pathway, and inflammatory responses. Our results suggest that the MG-H1/RAGE axis plays a significant role in the pathogenesis of CKD and its downstream events involving MAPK kinase-related factors and inflammatory factors. MG-H1 treatment modulated the expression of inflammatory cytokines (TNF-α, IL-6, and IL-1β) and MAPK proteins (ERK1/2, JNK, and p38).
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Affiliation(s)
- Gyuri Kim
- Department of Biotechnology, College of Life Science and Biotechnology, Korea University, Seoul 02841, Republic of Korea
| | - Hee Joon Yoo
- Department of Biotechnology, College of Life Science and Biotechnology, Korea University, Seoul 02841, Republic of Korea
| | - Min Ki Yoo
- Department of Biotechnology, College of Life Science and Biotechnology, Korea University, Seoul 02841, Republic of Korea
| | - Ju Hyeong Choi
- Department of Biotechnology, College of Life Science and Biotechnology, Korea University, Seoul 02841, Republic of Korea
| | - Kwang-Won Lee
- Department of Biotechnology, College of Life Science and Biotechnology, Korea University, Seoul 02841, Republic of Korea.
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Qiu Z, Qi B, Li L, Cui J, Liu M, Xia Z. ACTIVATION OF KLOTHO/SIRT1 SIGNALING PATHWAY ATTENUATES MYOCARDIAL ISCHEMIA REPERFUSION INJURY IN DIABETIC RATS. Shock 2024; 62:447-456. [PMID: 38904464 DOI: 10.1097/shk.0000000000002418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/22/2024]
Abstract
ABSTRACT Diabetes and myocardial ischemia reperfusion (MIR) injury are characterized by oxidative stress, inflammation, autophagy disorders, and cardiac contractile dysfunction. Klotho and SIRT1 regulate the level of oxidative stress to participate in the regulation of many physiological functions such as cell survival, aging, apoptosis, autophagy, mitochondrial biogenesis, and inflammation. We hypothesized that the activation of Klotho/SIRT1 signaling pathway could attenuate MIR in diabetic rats. Type 1 diabetes and MIR injury model were established to examine this hypothesis in vivo . Primary rat cardiomyocytes and H9c2 cells were exposed to high glucose conditions and hypoxia/reoxygenation (H/R) insult in vitro . Hemodynamic parameters of heart function, myocardial infarct size, oxidative stress, markers of MIR injury or cell viability, and the mRNA and protein expression of Klotho and SIRT1 were measured. There was lower expression of Klotho and SIRT1 in diabetic MIR hearts than in nondiabetic rats, as well as significantly increased oxidative stress levels and decreased autophagy levels. Recombinant Klotho (rKlotho) protein and the SIRT1 agonist SRT1720 could significantly attenuate MIR injury in diabetes by activating Klotho/SIRT1 signaling pathway to reduce oxidative stress and restore autophagy levels. These findings suggest that the Klotho/SIRT1 pathway plays an important role in MIR injury in diabetic rats, and rKlotho protein and agonist SRT1720 have therapeutic potential for alleviating diabetic myocardial IR injury by activating Klotho/SIRT1 to reduce oxidative stress and restore autophagy levels.
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Affiliation(s)
- Zhen Qiu
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Biao Qi
- Department of Anesthesiology, Wuhan Orthopaedics Hospital of Intergrated Traditional Medicine Chinese and Western Medicine, The Affiliated Hospital of Wuhan Sports University, and Hubei 672 Orthopedics Hospital of Traditional Chinese Medicine and Western Medicine, Wuhan, Hubei, China
| | - Lu Li
- Department of Anesthesiology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Jiahui Cui
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Min Liu
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Zhongyuan Xia
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
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Li S, Yang P, Wu Z, Huang W, Zhu X, Zhong L. The effects and mechanisms of AM1241 in alleviating cerebral ischemia-reperfusion injury. Brain Res Bull 2024; 215:111025. [PMID: 38964663 DOI: 10.1016/j.brainresbull.2024.111025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Revised: 06/19/2024] [Accepted: 07/01/2024] [Indexed: 07/06/2024]
Abstract
OBJECTIVE Research has shown that cerebral ischemia-reperfusion injury (CIRI) involves a series of physiological and pathological mechanisms, including inflammation, oxidative stress, and cell apoptosis. The cannabinoid receptor 2 agonist AM1241 has been found to have anti-inflammatory and anti-oxidative stress effects. However, it is unclear whether AM1241 has a protective effect against brain ischemia-reperfusion injury, and its underlying mechanisms are not yet known. METHODS In this study, we investigated the anti-inflammatory, anti-oxidative stress, and anti-apoptotic effects of AM1241 and its mechanisms in BV2 cells stimulated with H2O2 and in a C57BL/6 mouse model of CIRI in vitro and in vivo, respectively. RESULTS In vitro, AM1241 significantly inhibited the release of pro-inflammatory cytokines TNF-α and IL-6, reactive oxygen species (ROS), and the increase in Toll-like receptor 4/myeloid differentiation protein 2 (MD2/TLR4) complex induced by H2O2. Under H2O2 stimulation, MD2 overexpression resulted in increased levels of MD2/TLR4 complex, TNF-α, IL-6, NOX2, BAX, and Cleaved-Caspase3 (C-Caspase3), as well as the activation of the MAPK pathway and NF-κB, which were reversed by AM1241. In addition, molecular docking experiments showed that AM1241 directly interacted with MD2. Surface Plasmon Resonance (SPR) experiments further confirmed the binding of AM1241 to MD2. In vivo, AM1241 significantly attenuated neurofunctional impairment, brain edema, increased infarct volume, oxidative stress levels, and neuronal apoptosis in CIRI mice overexpressing MD2. CONCLUSION Our study demonstrates for the first time that AM1241 alleviates mouse CIRI by inhibiting the MD2/TLR4 complex, exerting anti-inflammatory, anti-oxidative stress and anti-apoptotic effects.
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Affiliation(s)
- Shipeng Li
- Department of Neurosurgery, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Ping Yang
- Department of Anatomy and Histology & Embryology, Faculty of Basic Medical Science, Kunming Medical University, Kunming, Yunnan, China
| | - Zhenghan Wu
- Department of Neurosurgery, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Wenqiang Huang
- Department of Neurosurgery, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Xiaofeng Zhu
- Department of Neurosurgery, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Lianmei Zhong
- Yunnan Provincial Clinical Research Center for Neurological Disease, Kunming, Yunnan, China; Department of Neurology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China.
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Feng S, Tan H, Zhong S, Ji J, Yuan J, Lin Y, Dong Q, Liu X, Wang Y, Wang Q, Xu R, Zhong Y, Jiang Q. Developmental 6:2 FTCA exposure impairs renal development in chicken embryos via IGF signaling. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 282:116714. [PMID: 38991308 DOI: 10.1016/j.ecoenv.2024.116714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 07/05/2024] [Accepted: 07/09/2024] [Indexed: 07/13/2024]
Abstract
6:2 fluorotelomer carboxylic acid (6:2 FTCA) is a perfluorooctanoic acid (PFOA) substitute, which is supposedly less accumulative and toxic than PFOA. However, 6:2 FTCA is structurally similar to PFOA, and there had already been reports about its toxicities comparable to PFOA. The aim of the current study is to assess potential effects of developmental exposure to 6:2 FTCA on the development of kidney in chicken embryo and to investigate underlying mechanism. Fertile chicken eggs were exposed to 1.25 mg/kg, 2.5 mg/kg or 5 mg/kg doses of 6:2 FTCA, or 2 mg/kg PFOA, then incubated to hatch. Serum and kidney of hatchling chickens were collected. Blood urea nitrogen (BUN) and creatinine (Cre) levels were measured with commercially available kits. Morphology of kidney was assessed with histopathology. To further reveal molecular mechanism of observed endpoints, IGF signaling molecules were assessed in the kidney samples with qRT-PCR, results indicated that IGFBP3 is a potentially crucial molecule. Lentiviruses overexpressing or silencing IGFBP3 were designed and applied to enhance/suppress the expression of IGFBP3 in developing chicken embryo for further verification of its role in the observed effects. Disrupted nephron formation, in the manifestation of decreased glomeruli number/area and increased serum BUN/Cre levels, was observed in the animals developmentally exposed to 6:2 FTCA. Correspondingly, IGF signaling molecules (IGF1, IGF1R and IGFBP3) were affected by 6:2 FTCA exposure. Meanwhile, overexpression of IGFBP3 effectively alleviated such changes, while silencing of IGFBP3 mimicked observed effects. In conclusion, developmental exposure to 6:2 FTCA is associated with disrupted chicken embryo renal development, in which IGFBP3 seems to be a remarkable contributor, suggesting potential health risks for human and other species. Further risk assessments and mechanistic works are necessary.
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Affiliation(s)
- Shanshan Feng
- Department of Toxicology, School of Public Health, Qingdao University, Qingdao, China
| | - Hailin Tan
- Department of Urology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Shuping Zhong
- Department of Toxicology, School of Public Health, Qingdao University, Qingdao, China
| | - Jing Ji
- Department of Toxicology, School of Public Health, Qingdao University, Qingdao, China
| | - Junhua Yuan
- Department of Specialty Medicine, School of Basic Medicine, Qingdao University, Qingdao, China
| | - Yongfeng Lin
- Department of Occupational Health, School of Public Health, Qingdao University, Qingdao, China
| | - Qixuan Dong
- Department of Toxicology, School of Public Health, Qingdao University, Qingdao, China
| | - Xiaomeng Liu
- Department of Toxicology, School of Public Health, Qingdao University, Qingdao, China
| | - Yiwei Wang
- Department of Toxicology, School of Public Health, Qingdao University, Qingdao, China
| | - Qingkun Wang
- Department of Toxicology, School of Public Health, Qingdao University, Qingdao, China
| | - Ruiqi Xu
- Department of Toxicology, School of Public Health, Qingdao University, Qingdao, China
| | - Yuxu Zhong
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, China.
| | - Qixiao Jiang
- Department of Toxicology, School of Public Health, Qingdao University, Qingdao, China.
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Zhang Y, Mi X, Zhang Y, Li J, Qin Y, He P, Zhao Y, Su B, He L. Immune checkpoint activity exacerbate renal interstitial fibrosis progression by enhancing PD-L1 expression in renal tubular epithelial cells. Transl Res 2024; 271:52-67. [PMID: 38723861 DOI: 10.1016/j.trsl.2024.05.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 05/04/2024] [Accepted: 05/06/2024] [Indexed: 05/23/2024]
Abstract
Renal interstitial fibrosis (RIF) is often associated with inflammatory cell infiltration and no effective therapy. Programmed death cell-1 (PD-1) and its ligand PD-L1 were playing critical roles in T cell coinhibition and exhaustion, but the role in RIF is unclear. Here the data analyses of serum from 122 IgA nephrology (IgAN) patients showed that high level of soluble PD-1(sPD-1) was an independent risk factor for RIF and renal function progression. PD-L1 was also overexpressed in renal interstitial tissues from both IgAN patients with high level of sPD-1 and the unilateral ureteral obstruction (UUO) mouse. PD-L1 was significantly overexpressed in HK-2 cells with upregulated collagen and α-SMA when stimulated by inflammation or hypoxia in vitro. Additionally, matrix metalloproteinases (MMP-2) could increase the level of sPD-1 in culture supernatant when added in co-culture system of HK-2 and jurkat cells, which implied serum sPD-1 of IgAN might be cleaved by MMP-2 from T cells infiltrated into the tubulointerstitial inflammatory microenvironment. Crucially, injection of PD-L1 fusion protein, the blocker of sPD-1, could ameliorate kidney fibrosis in UUO mice by increasing T cell coinhibition and exhaustion, suggesting the therapeutic potential of PD-L1 fusion targeting for renal fibrosis. Take together, it reveals a novel causal role of sPD-1 in serum and PD-L1 of renal interstitial tissues in the development of renal fibrosis of IgAN, and targeting sPD-1 in serum by PD-L1 fusion protein is a potential therapeutic approach to prevent renal fibrosis of IgAN.
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Affiliation(s)
- Yuting Zhang
- Department of Nephrology, Xijing Hospital, Air Force Medical University, Xi'an, China
| | - Xue Mi
- Department of Nephrology, Xijing Hospital, Air Force Medical University, Xi'an, China; Medical School of Yan'an University, Yan'an, China
| | - Yunchao Zhang
- Department of Nephrology, Xijing Hospital, Air Force Medical University, Xi'an, China
| | - Jipeng Li
- Department of Nephrology, Xijing Hospital, Air Force Medical University, Xi'an, China
| | - Yunlong Qin
- Department of Nephrology, Xijing Hospital, Air Force Medical University, Xi'an, China
| | - Peng He
- Department of Nephrology, Xijing Hospital, Air Force Medical University, Xi'an, China
| | - Ya Zhao
- Department of Medical Microbiology and Parasitology, Air Force Medical University, Xi'an, China.
| | - Binxiao Su
- Department of Anesthesiology and Perioperative Medicine, Xijing Hospital, Air Force Medical University, Xi'an, China; Department of Intensive Care Unit, Xijing Hospital, Air Force Medical University, Xi'an, China.
| | - Lijie He
- Department of Nephrology, Xijing Hospital, Air Force Medical University, Xi'an, China.
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Mondal A, Das S, Das M, Chakraborty S, Sengupta A. YAP1-mediated dysregulation of ACE-ACE2 activity augments cardiac fibrosis upon induction of hyperglycemic stress. Biochim Biophys Acta Gen Subj 2024; 1868:130666. [PMID: 38955313 DOI: 10.1016/j.bbagen.2024.130666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 06/20/2024] [Accepted: 06/27/2024] [Indexed: 07/04/2024]
Abstract
BACKGROUND Diabetic stress acts on the cardiac tissue to induce cardiac hypertrophy and fibrosis. Diabetes induced activated renin angiotensin system (RAS) has been reported to play a critical role in mediating cardiac hypertrophy and fibrosis. Angiotensin converting enzyme (ACE) in producing Angiotensin-II, promotes cardiomyocyte hypertrophy and fibrotic damage. ACE2, a recently discovered molecule structurally homologous to ACE, has been reported to be beneficial in reducing the effect of RAS driven pathologies. METHODS In vivo diabetic mouse model was used and co-labelling immunostaining assay have been performed to analyse the fibrotic remodeling and involvement of associated target signaling molecules in mouse heart tissue. For in vitro analyses, qPCR and western blot experiments were performed in different groups for RNA and protein expression analyses. RESULTS Fibrosis markers were observed to be upregulated in the diabetic mouse heart tissue as well as in high glucose treated fibroblast and cardiomyocyte cells. Hyperglycemia induced overexpression of YAP1 leads to increased expression of β-catenin (CTNNB1) and ACE with downregulated ACE2 expression. The differential expression of ACE/ACE2 promotes TGFB1-SMAD2/3 pathway in the hyperglycemic cardiomyocyte and fibroblast resulting in increased cardiac fibrotic remodeling. CONCLUSION In the following study, we have reported YAP1 modulates the RAS signaling pathway by inducing ACE and inhibiting ACE2 activity to augment cardiomyocyte hypertrophy and fibrosis in hyperglycemic condition. Furthermore, we have shown that hyperglycemia induced dysregulation of ACE-ACE2 activity by YAP1 promotes cardiac fibrosis through β-catenin/TGFB1 dependent pathway.
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Affiliation(s)
- Arunima Mondal
- Department of Life Science and Biotechnology, Jadavpur University, Kolkata, India
| | - Shreya Das
- Department of Life Science and Biotechnology, Jadavpur University, Kolkata, India
| | - Madhuchhanda Das
- Department of Life Science and Biotechnology, Jadavpur University, Kolkata, India
| | | | - Arunima Sengupta
- Department of Life Science and Biotechnology, Jadavpur University, Kolkata, India.
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46
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Liu Y, Xu C, Gu R, Han R, Li Z, Xu X. Endoplasmic reticulum stress in diseases. MedComm (Beijing) 2024; 5:e701. [PMID: 39188936 PMCID: PMC11345536 DOI: 10.1002/mco2.701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 07/30/2024] [Accepted: 07/31/2024] [Indexed: 08/28/2024] Open
Abstract
The endoplasmic reticulum (ER) is a key organelle in eukaryotic cells, responsible for a wide range of vital functions, including the modification, folding, and trafficking of proteins, as well as the biosynthesis of lipids and the maintenance of intracellular calcium homeostasis. A variety of factors can disrupt the function of the ER, leading to the aggregation of unfolded and misfolded proteins within its confines and the induction of ER stress. A conserved cascade of signaling events known as the unfolded protein response (UPR) has evolved to relieve the burden within the ER and restore ER homeostasis. However, these processes can culminate in cell death while ER stress is sustained over an extended period and at elevated levels. This review summarizes the potential role of ER stress and the UPR in determining cell fate and function in various diseases, including cardiovascular diseases, neurodegenerative diseases, metabolic diseases, autoimmune diseases, fibrotic diseases, viral infections, and cancer. It also puts forward that the manipulation of this intricate signaling pathway may represent a novel target for drug discovery and innovative therapeutic strategies in the context of human diseases.
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Affiliation(s)
- Yingying Liu
- Department of Aviation Clinical Medicine, Air Force Medical CenterPLABeijingChina
| | - Chunling Xu
- School of Pharmaceutical SciencesTsinghua UniversityBeijingChina
| | - Renjun Gu
- School of Chinese MedicineNanjing University of Chinese MedicineNanjingChina
- Department of Gastroenterology and HepatologyJinling HospitalMedical School of Nanjing UniversityNanjingChina
| | - Ruiqin Han
- State Key Laboratory of Medical Molecular BiologyDepartment of Biochemistry and Molecular BiologyInstitute of Basic Medical SciencesChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Ziyu Li
- School of Acupuncture and TuinaSchool of Regimen and RehabilitationNanjing University of Chinese MedicineNanjingChina
| | - Xianrong Xu
- Department of Aviation Clinical Medicine, Air Force Medical CenterPLABeijingChina
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47
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Zhu S, He J, Yin L, Zhou J, Lian J, Ren Y, Zhang X, Yuan J, Wang G, Li X. Matrix metalloproteinases targeting in prostate cancer. Urol Oncol 2024; 42:275-287. [PMID: 38806387 DOI: 10.1016/j.urolonc.2024.05.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 04/07/2024] [Accepted: 05/06/2024] [Indexed: 05/30/2024]
Abstract
Prostate cancer (PCa) is one of the most common tumors affecting men all over the world. PCa has brought a huge health burden to men around the world, especially for elderly men, but its pathogenesis is unclear. In prostate cancer, epigenetic inheritance plays an important role in the development, progression, and metastasis of the disease. An important role in cancer invasion and metastasis is played by matrix metalloproteinases (MMPs), zinc-dependent proteases that break down extracellular matrix. We review two important forms of epigenetic modification and the role of matrix metalloproteinases in tumor regulation, both of which may be of significant value as novel biomarkers for early diagnosis and prognosis monitoring. The author considers that both mechanisms have promising therapeutic applications for therapeutic agent research in prostate cancer, but that efforts should be made to mitigate or eliminate the side effects of drug therapy in order to maximize quality of life of patients. The understanding of epigenetic modification, MMPs, and their inhibitors in the functional regulation of prostate cancer is gradually advancing, it will provide a new technical means for the prevention of prostate cancer, early diagnosis, androgen-independent prostate cancer treatment, and drug research.
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Affiliation(s)
- Shuying Zhu
- Key Laboratory of Artificial Organs and Computational Medicine in Zhejiang Province, Shulan International Medical College, Zhejiang Shuren University, Hangzhou, PR China
| | - Jing He
- Key Laboratory of Artificial Organs and Computational Medicine in Zhejiang Province, Shulan International Medical College, Zhejiang Shuren University, Hangzhou, PR China
| | - Liliang Yin
- Key Laboratory of Artificial Organs and Computational Medicine in Zhejiang Province, Shulan International Medical College, Zhejiang Shuren University, Hangzhou, PR China
| | - Jiawei Zhou
- Key Laboratory of Artificial Organs and Computational Medicine in Zhejiang Province, Shulan International Medical College, Zhejiang Shuren University, Hangzhou, PR China
| | - Jiayi Lian
- Key Laboratory of Artificial Organs and Computational Medicine in Zhejiang Province, Shulan International Medical College, Zhejiang Shuren University, Hangzhou, PR China
| | - Yanli Ren
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, PR China
| | - Xinling Zhang
- Key Laboratory of Artificial Organs and Computational Medicine in Zhejiang Province, Shulan International Medical College, Zhejiang Shuren University, Hangzhou, PR China
| | - Jinghua Yuan
- Key Laboratory of Artificial Organs and Computational Medicine in Zhejiang Province, Shulan International Medical College, Zhejiang Shuren University, Hangzhou, PR China
| | - Gang Wang
- Key Laboratory of Artificial Organs and Computational Medicine in Zhejiang Province, Shulan International Medical College, Zhejiang Shuren University, Hangzhou, PR China
| | - Xiaoping Li
- Key Laboratory of Artificial Organs and Computational Medicine in Zhejiang Province, Shulan International Medical College, Zhejiang Shuren University, Hangzhou, PR China.
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48
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Yoon JH, Bae E, Nagafuchi Y, Sudo K, Han JS, Park SH, Nakae S, Yamashita T, Ju JH, Matsumoto I, Sumida T, Miyazawa K, Kato M, Kuroda M, Lee IK, Fujio K, Mamura M. Repression of SMAD3 by STAT3 and c-Ski induces conventional dendritic cell differentiation. Life Sci Alliance 2024; 7:e201900581. [PMID: 38960622 PMCID: PMC11222659 DOI: 10.26508/lsa.201900581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 06/17/2024] [Accepted: 06/18/2024] [Indexed: 07/05/2024] Open
Abstract
A pleiotropic immunoregulatory cytokine, TGF-β, signals via the receptor-regulated SMADs: SMAD2 and SMAD3, which are constitutively expressed in normal cells. Here, we show that selective repression of SMAD3 induces cDC differentiation from the CD115+ common DC progenitor (CDP). SMAD3 was expressed in haematopoietic cells including the macrophage DC progenitor. However, SMAD3 was specifically down-regulated in CD115+ CDPs, SiglecH- pre-DCs, and cDCs, whereas SMAD2 remained constitutive. SMAD3-deficient mice showed a significant increase in cDCs, SiglecH- pre-DCs, and CD115+ CDPs compared with the littermate control. SMAD3 repressed the mRNA expression of FLT3 and the cDC-related genes: IRF4 and ID2. We found that one of the SMAD transcriptional corepressors, c-SKI, cooperated with phosphorylated STAT3 at Y705 and S727 to repress the transcription of SMAD3 to induce cDC differentiation. These data indicate that STAT3 and c-Ski induce cDC differentiation by repressing SMAD3: the repressor of the cDC-related genes during the developmental stage between the macrophage DC progenitor and CD115+ CDP.
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Affiliation(s)
- Jeong-Hwan Yoon
- https://ror.org/04qn0xg47 Biomedical Research Institute, Kyungpook National University Hospital, Daegu, Republic of Korea
- https://ror.org/00k5j5c86 Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
- Shin-Young Medical Institute, Chiba, Japan
- https://ror.org/025h1m602 Institute for the 3Rs, Department of Laboratory Animal Medicine, College of Veterinary Medicine, Konkuk University, Seoul, Republic of Korea
| | - Eunjin Bae
- https://ror.org/00k5j5c86 Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
- https://ror.org/03mc8zn46 Department of Companion Health, Yeonsung University, Anyang, Republic of Korea
- Department of Experimental Pathology, Graduate School of Comprehensive Human Sciences and Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Yasuo Nagafuchi
- https://ror.org/057zh3y96 Department of Allergy and Rheumatology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Katsuko Sudo
- https://ror.org/00k5j5c86 Animal Research Center, Tokyo Medical University, Tokyo, Japan
| | - Jin Soo Han
- https://ror.org/025h1m602 Institute for the 3Rs, Department of Laboratory Animal Medicine, College of Veterinary Medicine, Konkuk University, Seoul, Republic of Korea
| | - Seok Hee Park
- Department of Biological Sciences, Sungkyunkwan University, Suwon, Republic of Korea
| | - Susumu Nakae
- https://ror.org/03t78wx29 Graduate School of Integrated Sciences for Life, Hiroshima University, Hiroshima, Japan
| | - Tadashi Yamashita
- Laboratory of Veterinary Biochemistry, Azabu University School of Veterinary Medicine, Sagamihara, Japan
| | - Ji Hyeon Ju
- Department of Rheumatology, Catholic University of Korea, Seoul St. Mary Hospital, Seoul, Republic of Korea
| | - Isao Matsumoto
- Department of Internal Medicine, University of Tsukuba, Tsukuba, Japan
| | - Takayuki Sumida
- Department of Internal Medicine, University of Tsukuba, Tsukuba, Japan
| | - Keiji Miyazawa
- https://ror.org/059x21724 Departments of Biochemistry, University of Yamanashi, Yamanashi, Japan
| | - Mitsuyasu Kato
- Department of Experimental Pathology, Graduate School of Comprehensive Human Sciences and Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Masahiko Kuroda
- https://ror.org/00k5j5c86 Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
| | - In-Kyu Lee
- https://ror.org/04qn0xg47 Biomedical Research Institute, Kyungpook National University Hospital, Daegu, Republic of Korea
| | - Keishi Fujio
- https://ror.org/057zh3y96 Department of Allergy and Rheumatology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Mizuko Mamura
- https://ror.org/04qn0xg47 Biomedical Research Institute, Kyungpook National University Hospital, Daegu, Republic of Korea
- Shin-Young Medical Institute, Chiba, Japan
- https://ror.org/00k5j5c86 Department of Advanced Nucleic Acid Medicine, Tokyo Medical University, Tokyo, Japan
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49
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Yan W, Zhou Y, Yuan X, Bai P, Tang M, Chen L, Wei H, Yang J. The cytotoxic natural compound erianin binds to colchicine site of β-tubulin and overcomes taxane resistance. Bioorg Chem 2024; 150:107569. [PMID: 38905886 DOI: 10.1016/j.bioorg.2024.107569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 06/13/2024] [Accepted: 06/16/2024] [Indexed: 06/23/2024]
Abstract
Erianin, a natural compound derived from Dendrobium, has shown significant anticancer properties against a wide range of cancer cells. Despite the identification of multiple mechanisms of action for erianin, none of these mechanisms fully account for its broad-spectrum effect. In this study, we aimed to identify the cellular target and underlying mechanism responsible for the broad-spectrum antitumor effects of erianin. We found that erianin effectively inhibited tubulin polymerization in cancer cells and purified tubulin. Through competition binding assays and X-ray crystallography, it was revealed that erianin bound to the colchicine site of β-tubulin. Importantly, the X-ray crystal structure of the tubulin-erianin complex was solved, providing clear insight into the orientation and position of erianin in the colchicine-binding site. Erianin showed activity against paclitaxel-resistant cells, evidenced by G2/M cell cycle arrest, apoptosis-related PARP and Caspase-3 cleavage, and in vivo xenograft studies. The study concluded that erianin bound reversibly to the colchicine site of β-tubulin, inhibited tubulin polymerization, and displayed anticancer activity against paclitaxel-resistant cells, offering valuable insights for further exploration as potential anticancer agents.
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Affiliation(s)
- Wei Yan
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China.
| | - Yongzhao Zhou
- Integrated Care Management Center, West China Hospital, Sichuan University, China.
| | - Xue Yuan
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China.
| | - Peng Bai
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China.
| | - Minghai Tang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China.
| | - Lijuan Chen
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China.
| | - Haoche Wei
- Department of General Surgery, Gastric Cancer Center, Laboratory of Gastric Cancer, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China.
| | - Jianhong Yang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China.
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50
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Romero G, Martin B, Gabris B, Salama G. Relaxin suppresses atrial fibrillation, reverses fibrosis and reduces inflammation in aged hearts. Biochem Pharmacol 2024; 227:116407. [PMID: 38969298 DOI: 10.1016/j.bcp.2024.116407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 06/18/2024] [Accepted: 07/02/2024] [Indexed: 07/07/2024]
Abstract
Healthy aging results in cardiac structural and electrical remodeling that increase susceptibility to cardiovascular diseases. Relaxin has shown broad cardioprotective effects including anti-fibrotic, anti-arrhythmic and anti-inflammatory outcomes in multiple models. This paper focuses on the cardioprotective effects of Relaxin in a rat model of aging. Sustained atrial or ventricular fibrillation are readily induced in the hearts of aged but not young control animals. Treatment with Relaxin suppressed this arrhythmogenic response by increasing conduction velocity, decreasing fibrosis and promoting substantial cardiac remodeling. Relaxin treatment resulted in a significant increase in the levels of: Nav1.5, Cx43, βcatenin and Wnt1 in rat hearts. In isolated cardiomyocytes, Relaxin increased Nav1.5 expression. These effects were mimicked by CHIR 99021, a pharmacological activator of canonical Wnt signaling, but blocked by the canonical Wnt inhibitor Dickkopf1. Relaxin prevented TGF-β-dependent differentiation of cardiac fibroblasts into myofibroblasts while increasing the expression of Wnt1; the effects of Relaxin on cardiac fibroblast differentiation were blocked by Dickkopf1. RNASeq studies demonstrated reduced expression of pro-inflammatory cytokines and an increase in the expression of α- and β-globin in Relaxin-treated aged males. Relaxin reduces arrhythmogenicity in the hearts of aged rats by reduction of fibrosis and increased conduction velocity. These changes are accompanied by substantial remodeling of the cardiac tissue and appear to be mediated by increased canonical Wnt signaling. Relaxin also exerts significant anti-inflammatory and anti-oxidant effects in the hearts of aged rodents. The mechanisms by which Relaxin increases the expression of Wnt ligands, promotes Wnt signaling and reprograms gene expression remain to be determined.
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Affiliation(s)
- Guillermo Romero
- Departments of Pharmacology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
| | - Brian Martin
- Departments of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Beth Gabris
- Departments of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Guy Salama
- Departments of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
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