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Zhang Z, Hu J. DKK1 loss promotes endometrial fibrosis via autophagy and exosome-mediated macrophage-to-myofibroblast transition. J Transl Med 2024; 22:617. [PMID: 38961399 PMCID: PMC11223343 DOI: 10.1186/s12967-024-05402-5] [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: 04/27/2024] [Accepted: 06/13/2024] [Indexed: 07/05/2024] Open
Abstract
INTRODUCTION Intrauterine adhesions (IUA) manifest as endometrial fibrosis, often causing infertility or recurrent miscarriage; however, their pathogenesis remains unclear. OBJECTIVES This study assessed the role of Dickkopf WNT signaling pathway inhibitor 1 (DKK1) and autophagy in endometrial fibrosis, using clinical samples as well as in vitro and in vivo experiments. METHODS Immunohistochemistry, immunofluorescence and western blot were used to determine the localization and expression of DKK1 in endometrium; DKK1 silencing and DKK1 overexpression were used to detect the biological effects of DKK1 silencing or expression in endometrial cells; DKK1 gene knockout mice were used to observe the phenotypes caused by DKK1 gene knockout. RESULTS In patients with IUA, DKK1 and autophagy markers were down-regulated; also, α-SMA and macrophage localization were increased in the endometrium. DKK1 conditional knockout (CKO) mice showed a fibrotic phenotype with decreased autophagy and increased localization of α-SMA and macrophages in the endometrium. In vitro studies showed that DKK1 knockout (KO) suppressed the autophagic flux of endometrial stromal cells. In contrast, ectopic expression of DKK1 showed the opposite phenotype. Mechanistically, we discovered that DKK1 regulates autophagic flux through Wnt/β-catenin and PI3K/AKT/mTOR pathways. Further studies showed that DKK1 KO promoted the secretion of interleukin (IL)-8 in exosomes, thereby promoting macrophage proliferation and metastasis. Also, in DKK1 CKO mice, treatment with autophagy activator rapamycin partially restored the endometrial fibrosis phenotype. CONCLUSION Our findings indicated that DKK1 was a potential diagnostic marker or therapeutic target for IUA.
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Affiliation(s)
- Zhanqin Zhang
- Department of Anesthesiology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Jianguo Hu
- Department of Obstetrics and Gynecology, Second Affiliated Hospital, Chongqing Medical University, Linjiang Road, No. 76, Chongqing, 400010, China.
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Song Y, Na H, Lee SE, Kim YM, Moon J, Nam TW, Ji Y, Jin Y, Park JH, Cho SC, Lee J, Hwang D, Ha SJ, Park HW, Kim JB, Lee HW. Dysfunctional adipocytes promote tumor progression through YAP/TAZ-dependent cancer-associated adipocyte transformation. Nat Commun 2024; 15:4052. [PMID: 38744820 PMCID: PMC11094189 DOI: 10.1038/s41467-024-48179-3] [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: 06/19/2023] [Accepted: 04/23/2024] [Indexed: 05/16/2024] Open
Abstract
Obesity has emerged as a prominent risk factor for the development of malignant tumors. However, the existing literature on the role of adipocytes in the tumor microenvironment (TME) to elucidate the correlation between obesity and cancer remains insufficient. Here, we aim to investigate the formation of cancer-associated adipocytes (CAAs) and their contribution to tumor growth using mouse models harboring dysfunctional adipocytes. Specifically, we employ adipocyte-specific BECN1 KO (BaKO) mice, which exhibit lipodystrophy due to dysfunctional adipocytes. Our results reveal the activation of YAP/TAZ signaling in both CAAs and BECN1-deficient adipocytes, inducing adipocyte dedifferentiation and formation of a malignant TME. The additional deletion of YAP/TAZ from BaKO mice significantly restores the lipodystrophy and inflammatory phenotypes, leading to tumor regression. Furthermore, mice fed a high-fat diet (HFD) exhibit decreased BECN1 and increased YAP/TAZ expression in their adipose tissues. Treatment with the YAP/TAZ inhibitor, verteporfin, suppresses tumor progression in BaKO and HFD-fed mice, highlighting its efficacy against mice with metabolic dysregulation. Overall, our findings provide insights into the key mediators of CAA and their significance in developing a TME, thereby suggesting a viable approach targeting adipocyte homeostasis to suppress cancer growth.
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Affiliation(s)
- Yaechan Song
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea
| | - Heeju Na
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea
| | - Seung Eon Lee
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea
| | - You Min Kim
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea
| | - Jihyun Moon
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea
| | - Tae Wook Nam
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea
| | - Yul Ji
- Department of Biological Sciences, Seoul National University, Seoul, 08826, Republic of Korea
| | - Young Jin
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea
| | - Jae Hyung Park
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea
| | - Seok Chan Cho
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea
| | - Jaehoon Lee
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea
- Gemcro, Inc, Seoul, 03722, Republic of Korea
| | - Daehee Hwang
- Department of Biological Sciences, Seoul National University, Seoul, 08826, Republic of Korea
| | - Sang-Jun Ha
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea
| | - Hyun Woo Park
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea
| | - Jae Bum Kim
- Department of Biological Sciences, Seoul National University, Seoul, 08826, Republic of Korea
| | - Han-Woong Lee
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea.
- Gemcro, Inc, Seoul, 03722, Republic of Korea.
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Jin J, Liu XM, Shao W, Meng XM. Nucleic acid and protein methylation modification in renal diseases. Acta Pharmacol Sin 2024; 45:661-673. [PMID: 38102221 PMCID: PMC10943093 DOI: 10.1038/s41401-023-01203-6] [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: 06/27/2023] [Accepted: 11/18/2023] [Indexed: 12/17/2023] Open
Abstract
Although great efforts have been made to elucidate the pathological mechanisms of renal diseases and potential prevention and treatment targets that would allow us to retard kidney disease progression, we still lack specific and effective management methods. Epigenetic mechanisms are able to alter gene expression without requiring DNA mutations. Accumulating evidence suggests the critical roles of epigenetic events and processes in a variety of renal diseases, involving functionally relevant alterations in DNA methylation, histone methylation, RNA methylation, and expression of various non-coding RNAs. In this review, we highlight recent advances in the impact of methylation events (especially RNA m6A methylation, DNA methylation, and histone methylation) on renal disease progression, and their impact on treatments of renal diseases. We believe that a better understanding of methylation modification changes in kidneys may contribute to the development of novel strategies for the prevention and management of renal diseases.
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Affiliation(s)
- Juan Jin
- School of Basic Medicine, Anhui Medical University, Hefei, 230032, China
- Research Center for Translational Medicine, the Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China
| | - Xue-Mei Liu
- School of Basic Medicine, Anhui Medical University, Hefei, 230032, China
| | - Wei Shao
- School of Basic Medicine, Anhui Medical University, Hefei, 230032, China.
| | - Xiao-Ming Meng
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, The Key Laboratory of Anti-Inflammatory of Immune Medicines, Ministry of Education, Hefei, 230032, China.
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Qu S, Fang J, Zhao S, Wang Y, Gao W, Li Z, Xu H, Zhang Y, Shi S, Cheng X, Liu Z, Jin L, Yao Y. Associations of dietary inflammatory index with low estimated glomerular filtration rate, albuminuria and chronic kidney disease in U.S adults: Results from the NHANES 2011-2018. Nutr Metab Cardiovasc Dis 2024; 34:1036-1045. [PMID: 38267324 DOI: 10.1016/j.numecd.2023.11.006] [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: 06/11/2023] [Revised: 11/09/2023] [Accepted: 11/12/2023] [Indexed: 01/26/2024]
Abstract
BACKGROUND AND AIMS Chronic Kidney Disease (CKD) is characterized by a high inflammation status with ever-increasing prevalence, and defined as low estimated glomerular filtration rate (eGFR) or albuminuria. Both low eGFR and albuminuria can have independent effects on the body. The dietary inflammatory index (DII) is a validated tool used to assess the inflammatory potential of the diet. We aim to explore not only the association between DII and CKD, but also the associations of DII with low eGFR and albuminuria, respectively. In addition, their associations in different subgroups remain to be explored. METHODS AND RESULTS 18,070 participants from the 2011-2018 NHANES with complete data of dietary intake and laboratory data were involved in our study. The data of 24-hour dietary recall interview was used to calculate DII, CKD could be reflected by laboratory data of creatinine and albumin. Then weighted multivariate logistic regression models and subgroup analyses were performed. The prevalence of low eGFR, albuminuria and CKD were 6.8%, 9.8% and 14.5%, respectively. A positive association between DII and low eGFR was observed (OR=1.12, 95%CI: 1.05-1.21), Q2, Q3 and Q4 are positively associated with a significant 39%, 65% and 71% increased risk of low eGFR compared with Q1 (P for trend<0.05). DII was also associated with CKD (OR=1.06, 95%CI: 1.01-1.11). CONCLUSION Significant positive associations of DII with CKD and low eGFR were observed. But we didn't find such association between DII and albuminuria.
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Affiliation(s)
- Shifang Qu
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, Jilin, China.
| | - Jiaxin Fang
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, Jilin, China.
| | - Saisai Zhao
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, Jilin, China.
| | - Yuxiang Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, Jilin, China.
| | - Wenhui Gao
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, Jilin, China.
| | - Zhiyao Li
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, Jilin, China.
| | - Han Xu
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, Jilin, China.
| | - Yuan Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, Jilin, China.
| | - Shunyao Shi
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, Jilin, China.
| | - Xiaowei Cheng
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, Jilin, China.
| | - Zhigang Liu
- Osteopathic Center, The Second Hospital of Jilin University, No.4026, Yatai Street, Nanguan District, Changchun, Jilin, China.
| | - Lina Jin
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, Jilin, China.
| | - Yan Yao
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, Jilin, China.
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Peng Z, Dong X, Long Y, Li Z, Wang Y, Zhu W, Ding B. Causality between allergic diseases and kidney diseases: a two-sample Mendelian randomization study. Front Med (Lausanne) 2024; 11:1347152. [PMID: 38533318 PMCID: PMC10963543 DOI: 10.3389/fmed.2024.1347152] [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: 12/07/2023] [Accepted: 02/29/2024] [Indexed: 03/28/2024] Open
Abstract
Background Evidence from observational studies and clinical trials suggests that the allergic diseases (ADs) are associated with kidney diseases (KDs). However, the causal association between them remains to be determined. We used bidirectional two-sample Mendelian randomization (MR) analysis to evaluate the potential causality between them. Methods Mendelian randomization (MR) was performed using publicly available genome-wide association study (GWAS) summary datasets. Inverse variance weighted (IVW), weighted median, MR-Egger regression, simple mode, and weighted mode methods are used to evaluate the causality between ADs and KDs. Sensitivity and heterogeneity analyses were used to ensure the stability of the results. Results The MR results indicated that genetic susceptibility to ADs was associated with a higher risk of CKD [odds ratio (OR) = 1.124, 95% CI = 1.020-1.239, p = 0.019] and unspecified kidney failure (OR = 1.170, 95% CI = 1.004-1.363, p = 0.045) but not with kidney stone, ureter stone or bladder stone (OR = 1.001, 95% CI = 1.000-1.002, p = 0.216), other renal or kidney problem (OR = 1.000, 95% CI = 1.000-1.001, p = 0.339), urinary tract or kidney infection (OR = 1.000, 95% CI = 0.999-1.001, p = 0.604), kidney volume (OR = 0.996, 95% CI = 0.960-1.033, p = 0.812) and cyst of kidney (OR = 0.914, 95% CI = 0.756-1.105, p = 0.354). No causal evidence of KDs on ADs was found in present study. Conclusion Results from MR analysis indicate a causal association between ADs and CKD and unspecified kidney failure. These findings partly suggest that early monitoring of CKD risk in patients with ADs is intentional.
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Affiliation(s)
- Zhe Peng
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
- Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, Guangdong, China
| | - Xinyu Dong
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Yingxin Long
- College of Pharmacy, Jinan University, Guangzhou, Guangdong, China
| | - Zunjiang Li
- Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, Guangdong, China
| | - Yueyao Wang
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Wei Zhu
- Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, Guangdong, China
| | - Banghan Ding
- Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Research on Emergency in Traditional Chinese Medicine, Guangzhou, Guangdong, China
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Song J, Yu W, Chen S, Huang J, Zhou C, Liang H. Remimazolam attenuates inflammation and kidney fibrosis following folic acid injury. Eur J Pharmacol 2024; 966:176342. [PMID: 38290569 DOI: 10.1016/j.ejphar.2024.176342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 01/11/2024] [Accepted: 01/17/2024] [Indexed: 02/01/2024]
Abstract
The transition of acute kidney injury (AKI) to chronic kidney disease (CKD) is characterized by intense inflammation and progressive fibrosis. Remimazolam is widely used for procedural sedation in intensive care units, such as AKI patients. Remimazolam has been shown to possess anti-inflammatory and organ-protective properties. However, the role of remimazolam in inflammation and renal fibrosis following AKI remains unclear. Here, we explored the effects of remimazolam on the inflammatory response and kidney fibrogenesis of mice subjected to folic acid (FA) injury. Our results showed that remimazolam treatment alleviated kidney damage and dysfunction. Mice treated with remimazolam presented less collagen deposition in FA-injured kidneys compared with FA controls, which was accompanied by a reduction of extracellular matrix proteins accumulation and fibroblasts activation. Furthermore, remimazolam treatment reduced inflammatory cells infiltration into the kidneys of mice with FA injury and inhibited proinflammatory or profibrotic molecules expression. Finally, remimazolam treatment impaired the activation of bone marrow-derived fibroblasts and blunted the transformation of macrophages to myofibroblasts in FA nephropathy. Additionally, the benzodiazepine receptor antagonist PK-11195 partially reversed the protective effect of remimazolam on the FA-injured kidneys. Overall, remimazolam attenuates the inflammatory response and renal fibrosis development following FA-induced AKI, which may be related to the peripheral benzodiazepine receptor pathway.
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Affiliation(s)
- Jinfang Song
- Department of Anesthesiology, Foshan Women and Children Hospital, Foshan, 528000, China; Zhuhai Campus, Zunyi Medical University, Zhuhai, 519041, China.
| | - Wenqiang Yu
- Department of Anesthesiology, Foshan Women and Children Hospital, Foshan, 528000, China.
| | - Shuangquan Chen
- Department of Anesthesiology, Foshan Women and Children Hospital, Foshan, 528000, China.
| | - Jiamin Huang
- Department of Anesthesiology, Foshan Women and Children Hospital, Foshan, 528000, China.
| | - Chujun Zhou
- Jiangxi University of Traditional Chinese Medicine, Nanchang, 330004, China.
| | - Hua Liang
- Department of Anesthesiology, Foshan Women and Children Hospital, Foshan, 528000, China.
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Chao CT, Kuo FC, Lin SH. Epigenetically regulated inflammation in vascular senescence and renal progression of chronic kidney disease. Semin Cell Dev Biol 2024; 154:305-315. [PMID: 36241561 DOI: 10.1016/j.semcdb.2022.09.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 09/08/2022] [Accepted: 09/26/2022] [Indexed: 11/05/2022]
Abstract
Chronic kidney disease (CKD) and its complications, including vascular senescence and progressive renal fibrosis, are associated with inflammation. Vascular senescence, in particular, has emerged as an instrumental mediator of vascular inflammation that potentially worsens renal function. Epigenetically regulated inflammation involving histone modification, DNA methylation, actions of microRNAs and other non-coding RNAs, and their reciprocal reactions during vascular senescence and inflammaging are underappreciated. Their synergistic effects can contribute to CKD progression. Vascular senotherapeutics or pharmacological anti-senescent therapies based on epigenetic machineries can therefore be plausible options for ameliorating vascular aging and even halting the worsening of renal fibrosis. These include histone deacetylase modulators, histone methyltransferase modulators, other histone modification effectors, DNA methyltransferase inhibitors, telomerase reverse transcriptase enhancers, microRNA mimic delivery, and small molecules with microRNA-regulating potentials. Some of these molecules have already been tested and have shown anecdotal evidence for treating uremic vasculopathy and renal fibrosis, supporting the feasibility of this approach.
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Affiliation(s)
- Chia-Ter Chao
- Nephrology division, Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan; Nephrology division, Department of Internal Medicine, National Taiwan University College of Medicine, Taipei, Taiwan; Graduate Institute of Toxicology, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Feng-Chih Kuo
- Division of Endocrinology, Department of Internal Medicine, Tri-Service General Hospital and National Defense Medical Center, Taipei, Taiwan
| | - Shih-Hua Lin
- Nephrology division, Department of Internal Medicine, Tri-Service General Hospital and National Defense Medical Center, Taipei, Taiwan.
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Jin J, Yang YR, Gong Q, Wang JN, Ni WJ, Wen JG, Meng XM. Role of epigenetically regulated inflammation in renal diseases. Semin Cell Dev Biol 2024; 154:295-304. [PMID: 36328897 DOI: 10.1016/j.semcdb.2022.10.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 10/01/2022] [Accepted: 10/23/2022] [Indexed: 11/06/2022]
Abstract
In recent decades, renal disease research has witnessed remarkable advances. Experimental evidence in this field has highlighted the role of inflammation in kidney disease. Epigenetic dynamics and immunometabolic reprogramming underlie the alterations in cellular responses to intrinsic and extrinsic stimuli; these factors determine cell identity and cell fate decisions and represent current research hotspots. This review focuses on recent findings and emerging concepts in epigenetics and inflammatory regulation and their effect on renal diseases. This review aims to summarize the role and mechanisms of different epigenetic modifications in renal inflammation and injury and provide new avenues for future research on inflammation-related renal disease and drug development.
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Affiliation(s)
- Juan Jin
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, The Key Laboratory of Anti-Inflammatory of Immune Medicines, Ministry of Education, Hefei 230032, China; School of Basic Medicine, Anhui Medical University, Hefei 230032, China
| | - Ya-Ru Yang
- Department of Clinical Pharmacology, Second Hospital of Anhui Medical University, Hefei, China
| | - Qian Gong
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, Anhui, China
| | - Jia-Nan Wang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, The Key Laboratory of Anti-Inflammatory of Immune Medicines, Ministry of Education, Hefei 230032, China
| | - Wei-Jian Ni
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, The Key Laboratory of Anti-Inflammatory of Immune Medicines, Ministry of Education, Hefei 230032, China
| | - Jia-Gen Wen
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, The Key Laboratory of Anti-Inflammatory of Immune Medicines, Ministry of Education, Hefei 230032, China.
| | - Xiao-Ming Meng
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, The Key Laboratory of Anti-Inflammatory of Immune Medicines, Ministry of Education, Hefei 230032, China.
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Tang L, Zhang YY, Liu WJ, Fu Q, Zhao J, Liu YB. DNA methylation of promoter region inhibits galectin-1 expression in BMSCs of aged mice. Am J Physiol Cell Physiol 2024; 326:C429-C441. [PMID: 38105757 DOI: 10.1152/ajpcell.00334.2023] [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: 07/24/2023] [Revised: 12/01/2023] [Accepted: 12/14/2023] [Indexed: 12/19/2023]
Abstract
Senile osteoporosis increases fracture risks. Bone marrow stromal cells (BMSCs) are sensitive to aging. Deep insights into BMSCs aging are vital to elucidate the mechanisms underlying age-related bone loss. Recent advances showed that osteoporosis is associated with aberrant DNA methylation of many susceptible genes. Galectin-1 (Gal-1) has been proposed as a mediator of BMSCs functions. In our previous study, we showed that Gal-1 was downregulated in aged BMSCs and global deletion of Gal-1 in mice caused bone loss via impaired osteogenesis potential of BMSCs. Gal-1 promoter is featured by CpG islands. However, there are no reports concerning the DNA methylation status in Gal-1 promoter during osteoporosis. In the current study, we sought to investigate the role of DNA methylation in Gal-1 downregulation in aged BMSCs. The potential for anti-bone loss therapy based on modulating DNA methylation is explored. Our results showed that Dnmt3b-mediated Gal-1 promoter DNA hypermethylation plays an important role in Gal-1 downregulation in aged BMSCs, which inhibited β-catenin binding on Gal-1 promoter. Bone loss of aged mice was alleviated in response to in vivo deletion of Dnmt3b from BMSCs. Finally, when bone marrow of young wild-type (WT) mice or young Dnmt3bPrx1-Cre mice was transplanted into aged WT mice, Gal-1 level in serum and trabecular bone mass were elevated in recipient aged WT mice. Our study will benefit for deeper insights into the regulation mechanisms of Gal-1 expression in BMSCs during osteoporosis development, and for the discovery of new therapeutic targets for osteoporosis via modulating DNA methylation status.NEW & NOTEWORTHY There is Dnmt3b-mediated DNA methylation in Gal-1 promoter in aged bone marrow stromal cell (BMSC). DNA methylation causes Gal-1 downregulation and osteogenesis attenuation of aged BMSC. DNA methylation blocks β-catenin binding on Gal-1 promoter. Bone loss of aged mice is alleviated by in vivo deletion of Dnmt3b from BMSC.
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Affiliation(s)
- Liang Tang
- Department of Orthopedic Surgery, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Yang-Yang Zhang
- Department of Orthopedic Surgery, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Wen-Jun Liu
- Department of Orthopedic Surgery, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Qiang Fu
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Jian Zhao
- Department of Orthopedics, Second Affiliated Hospital of Naval Medical University, Shanghai, People's Republic of China
| | - Yan-Bin Liu
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
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Liu X, Liu G, Tan Y, Liu P, Li L. Upregulation of miR-200a improves ureteral obstruction-induced renal fibrosis via GAB1/Wnt/β-catenin signaling. Nefrologia 2023; 43 Suppl 2:21-31. [PMID: 37179212 DOI: 10.1016/j.nefroe.2023.05.005] [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: 12/20/2022] [Accepted: 02/15/2023] [Indexed: 05/15/2023] Open
Abstract
BACKGROUND Renal fibrosis is a basic pathological change of almost all chronic kidney disorders. Epithelial-mesenchymal transition (EMT) and excessive extracellular matrix (ECM) accumulation play a crucial role in the process of fibrosis. METHODS Western blot and qRT-PCR were accomplished to analyze the expression levels of target proteins and genes, respectively. The fibrotic levels in the renal tissues of rats were confirmed utilizing Masson staining. Expression of ECM-related α-SMA in the renal tissues was determined by immunohistochemistry assay. The combination of GRB2 associated binding protein 1 (GAB1) and miR-200a was ensured by starBase database and luciferase reporter assay. RESULTS Our data uncovered that miR-200a was downregulated, but GAB1 was upregulated in the renal tissues of the rat experienced unilateral ureteral obstruction (UUO). Overexpression of miR-200a improved tissues fibrosis, suppressed GAB1 expression and ECM deposition, and inactivated Wnt/β-catenin in UUO rats. Moreover, miR-200a expression was inhibited, while GAB1 expression was facilitated in the TGF-β1-induced HK-2 cells. In TGF-β1-induced HK-2 cells, miR-200a overexpression inhibited GAB1 expression, also declined ECM-related proteins and mesenchymal markers expression. Oppositely, miR-200a overexpression facilitated epithelial marker expression in the TGF-β1-induced HK-2 cells. Next, the data revealed that miR-200a inhibited GAB1 expression through binding to the mRNA 3'-UTR of GAB1. Increasing of GAB1 reversed the regulation of miR-200a to GAB1 expression, Wnt/β-catenin signaling activation, EMT and ECM accumulation. CONCLUSION Overall, miR-200a increasing improved renal fibrosis through attenuating EMT and ECM accumulation by limiting Wnt/β-catenin signaling via sponging GAB1, indicating miR-200a may be a promising objective for renal disease therapy.
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Affiliation(s)
- XuKai Liu
- Department of Neurosurgery, Zhuzhou Central Hospital, Zhuzhou 412007, Hunan Province, PR China
| | - GeXin Liu
- Department of Emergency, Zhuzhou Central Hospital, Zhuzhou 412007, Hunan Province, PR China
| | - YuZhen Tan
- Department of Emergency, Zhuzhou Central Hospital, Zhuzhou 412007, Hunan Province, PR China
| | - Pan Liu
- Department of Emergency, Zhuzhou Central Hospital, Zhuzhou 412007, Hunan Province, PR China.
| | - Le Li
- Department of Emergency, Zhuzhou Central Hospital, Zhuzhou 412007, Hunan Province, PR China.
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Feng M, Luo F, Wu H, Chen Y, Zuo J, Weng X, Chen G, Zhong J. Network Pharmacology Analysis and Machine-Learning Models Confirmed the Ability of YiShen HuoXue Decoction to Alleviate Renal Fibrosis by Inhibiting Pyroptosis. Drug Des Devel Ther 2023; 17:3169-3192. [PMID: 37900883 PMCID: PMC10612518 DOI: 10.2147/dddt.s420135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 10/07/2023] [Indexed: 10/31/2023] Open
Abstract
Purpose YiShen HuoXue decoction (YSHXD) is a formulation that has been used clinically for the treatment of renal fibrosis (RF) for many years. We aimed to clarify therapeutic effects of YSHXD against RF and potential pharmacological mechanisms. Materials and Methods We used network pharmacology analysis and machine-learning to screen the core components and core targets of YSHXD against RF, followed by molecular docking and molecular dynamics simulations to confirm the reliability of the results. Finally, we validated the network pharmacology analysis experimentally in HK-2 cells and a rat model of RF established by unilateral ureteral ligation (UUO). Results Quercetin, kaempferol, luteolin, beta-sitosterol, wogonin, stigmasterol, isorhamnetin, baicalein, and dihydrotanshinlactone progesterone were identified as the main active components of YSHXD in the treatment of unilateral ureteral ligation-induced RF, with IL-6, IL1β, TNF, AR, and PTGS2 as core target proteins. Molecular docking and molecular dynamics simulations further confirmed the relationship between compounds and target proteins. The potential molecular mechanism of YSHXD predicted by network pharmacology analysis was confirmed in HK-2 cells and UUO rats. YSHXD downregulated NLRP3, ASC, NF-κBp65, Caspase-1, GSDMD, PTGS2, IL-1β, IL-6, IL-18, TNF-α, α-SMA and upregulated HGF, effectively alleviating the RF process. Conclusion YSHXD exerts important anti-inflammatory and anti-cellular inflammatory necrosis effects by inhibiting the NLRP3/caspase-1/GSDMD-mediated pyroptosis pathway, indicating that YSHXD represents a new strategy and complementary approach to RF therapy.
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Affiliation(s)
- MinChao Feng
- The First Clinical Medical College, Guangxi University of Traditional Chinese Medicine, Nannig, People’s Republic of China
| | - Fang Luo
- The First Clinical Medical College, Guangxi University of Traditional Chinese Medicine, Nannig, People’s Republic of China
| | - HuiMin Wu
- The First Clinical Medical College, Guangxi University of Traditional Chinese Medicine, Nannig, People’s Republic of China
| | - Yushan Chen
- The First Clinical Medical College, Guangxi University of Traditional Chinese Medicine, Nannig, People’s Republic of China
| | - Jinjin Zuo
- The First Clinical Medical College, Guangxi University of Traditional Chinese Medicine, Nannig, People’s Republic of China
| | - Xueying Weng
- The First Clinical Medical College, Guangxi University of Traditional Chinese Medicine, Nannig, People’s Republic of China
| | - Guozhong Chen
- Department of Gastroenterology, the First Affiliated Hospital of Guangxi University of Traditional Chinese Medicine, Nanning, People’s Republic of China
| | - Jian Zhong
- Department of Nephrology, the First Affiliated Hospital of Guangxi University of Traditional Chinese Medicine, Nanning, People’s Republic of China
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12
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Wang Z, Weizhong G, Zhou J, Tang D. Role and significance of SIRT1 in regulating the LPS-activated pyroptosis pathway in children with congenital hydronephrosis. WORLD JOURNAL OF PEDIATRIC SURGERY 2023; 6:e000602. [PMID: 37534327 PMCID: PMC10391807 DOI: 10.1136/wjps-2023-000602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 06/08/2023] [Indexed: 08/04/2023] Open
Abstract
Objective To explore the characteristics and mechanism of sirtuin 1 (SIRT1) in lipopolysaccharide (LPS)-activated pyroptosis in the renal tissue of children with congenital hydronephrosis (CHn). Methods We detected the expression characteristics and clinical significance of SIRT1 and pyroptosis pathway proteins in CHn renal tissues by immunohistochemistry. The degree of renal fibrosis was detected by Masson staining. The human renal tubular epithelial cell line (HK-2) was cultured in vitro and treated with LPS (1 µg/mL), the SIRT1-specific agonist SRT1720 (2.5 µmol/L) and small interfering RNA (siRNA)-SIRT1 for 48 hours. After 48 hours, Cell Counting Kit-8 was used to detect the changes in cell proliferation ability, and ELISA was used to detect the changes in the expression of interleukin (IL)-1β and IL-18 in the cell supernatant. Real-time PCR (quantitative RT-PCR) and western blot analysis were used to detect the expression of SIRT1, caspase-1, caspase-4, NOD-like receptor thermal protein domain associated protein 3(NLRP3), and cleaved gasdermin D (GSDMD) in each group. Results Serum inflammatory cytokines were significantly elevated in 13 children with CHn with urinary tract infection, mainly caused by Gram-negative bacteria. Severe renal fibrosis occurred in children with CHn. Compared with the control group, the expression of SIRT1 in CHn kidney tissues was decreased, and the expression of caspase-4 and GSDMD was increased. LPS inhibited the expression of SIRT1 in HK-2 cells, promoted the expression of caspase-1, caspase-4, NLRP3, cleaved GSDMD, promoted the expression of IL-1β and IL-18 in the supernatant, and promoted pyroptosis in HK-2 cells. SRT1720 can inhibit LPS-activated pyroptosis by promoting SIRT1 expression, while siRNA-SIRT1 can further aggravate LPS-activated pyroptosis after inhibiting SIRT1 expression. Conclusions LPS can promote the inflammatory response in children with CHn by activating non-canonical pyroptosis and inhibiting SIRT1 expression. Promoting SIRT1 expression can inhibit pyroptosis of renal tubular epithelial cells, reduce the release of IL-18 and IL-1β, and alleviate the progression of renal fibrosis in children with CHn.
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Affiliation(s)
- Zhan Wang
- Department of Urological surgery, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Gu Weizhong
- Department of Pathology, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Juan Zhou
- Department of Urological surgery, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Daxing Tang
- Department of Urological surgery, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
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13
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Zhang Q, Ye J, Zhang Z, Hu Y, Wang X, Jiang W, Guo X, Chen L, Cheng S, Li J, Zhang L. Aristolocholic acid I promotes renal tubular epithelial fibrosis by upregulating matrix metalloproteinase-9 expression via activating the C3a/C3aR axis of macrophages. Toxicol Lett 2023; 381:27-35. [PMID: 37084829 DOI: 10.1016/j.toxlet.2023.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 02/17/2023] [Accepted: 04/18/2023] [Indexed: 04/23/2023]
Abstract
Aristolochic acid I (AAI) can cause nephrotoxicity and is characterized by interstitial fibrosis. The C3a/C3aR axis of macrophages and matrix metalloproteinase-9 (MMP-9) play important roles in fibrosis, but whether they are involved in AAI-induced renal interstitial fibrosis and are related remains to be elucidated. In this study, we investigated whether C3a/C3aR axis of macrophages promotes renal interstitial fibrosis by regulating MMP-9 in aristolochic acid nephropathy (AAN). Intraperitoneal injection of AAI for 28 days successfully induced AAN in C57bl/6 mice. The content of C3a in the kidney of AAN mice was increased, and there was a significant distribution of macrophages in the renal tubules. The same results were observed in the in vitro experiment. We also explored the role and mechanism of macrophages after AAI administration in the epithelial-mesenchymal transformation (EMT) of renal tubular epithelial cells (RTECs) and found that AAI could activate the C3a/C3aR axis of macrophages to upregulate p65 expression in macrophages. p65 upregulated MMP-9 expression in macrophages not only directly but also by promoting the secretion if interleukin-6 by macrophages and then activating STAT3 in RTECs. The upregulation of MMP-9 expression could promote the EMT of RTECs. Taken together, our study demonstrated that the AAI-activated the C3a/C3aR axis of macrophages, which induced MMP-9 production, was one of the causes of renal interstitial fibrosis. Therefore, targeting the C3a/C3aR axis of macrophages is an effective therapeutic strategy for the prevention and treatment of renal interstitial fibrosis in AAN.
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Affiliation(s)
- Qi Zhang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Jing Ye
- School of Life Science, Nanjing University, Nanjing 210023, China
| | - Zhaofeng Zhang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Yongkang Hu
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Xian Wang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Wenjuan Jiang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Xinlong Guo
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Langqun Chen
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Siyu Cheng
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Jian Li
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing, 210009, China; Jinling Pharmaceutical Co., Ltd., Nanjing, 210009, China.
| | - Liang Zhang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
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Omorou M, Huang Y, Gao M, Mu C, Xu W, Han Y, Xu H. The forkhead box O3 (FOXO3): a key player in the regulation of ischemia and reperfusion injury. Cell Mol Life Sci 2023; 80:102. [PMID: 36939886 PMCID: PMC11072419 DOI: 10.1007/s00018-023-04755-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Revised: 02/10/2023] [Accepted: 03/09/2023] [Indexed: 03/21/2023]
Abstract
Forkhead box O3 is a protein encoded by the FOXO3 gene expressed throughout the body. FOXO3 could play a crucial role in longevity and many other pathologies, such as Alzheimer's disease, glioblastoma, and stroke. This study is a comprehensive review of the expression of FOXO3 under ischemia and reperfusion (IR) and the molecular mechanisms of its regulation and function. We found that the expression level of FOXO3 under ischemia and IR is tissue-specific. Specifically, the expression level of FOXO3 is increased in the lung and intestinal epithelial cells after IR. However, FOXO3 is downregulated in the kidney after IR and in the skeletal muscles following ischemia. Interestingly, both increased and decreased FOXO3 expression have been reported in the brain, liver, and heart following IR. Nevertheless, these contribute to stimulating ischemia and reperfusion injury via the induction of inflammatory response, apoptosis, autophagy, mitophagy, pyroptosis, and oxidative damage. These results suggest that FOXO3 could play protective effects in some organs and detrimental effects in others against IR injury. Most importantly, these findings indicate that controlling FOXO3 expression, genetically or pharmacologically, could contribute to preventing or treating ischemia and reperfusion damage.
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Affiliation(s)
- Moussa Omorou
- Department of Biochemistry and Molecular Biology, Jiamusi University School of Basic Medical Sciences, Jiamusi, 154000, Heilongjiang, People's Republic of China
| | - Yiwei Huang
- Department of Biochemistry and Molecular Biology, Jiamusi University School of Basic Medical Sciences, Jiamusi, 154000, Heilongjiang, People's Republic of China
| | - Meng Gao
- Department of Biochemistry and Molecular Biology, Jiamusi University School of Basic Medical Sciences, Jiamusi, 154000, Heilongjiang, People's Republic of China
| | - Chenxi Mu
- Department of Biochemistry and Molecular Biology, Jiamusi University School of Basic Medical Sciences, Jiamusi, 154000, Heilongjiang, People's Republic of China
| | - Weijing Xu
- Department Epidemiology and Health Statistics, Jiamusi University School of Public Health, Jiamusi, 154000, Heilongjiang, People's Republic of China
| | - Yuchun Han
- Department of Biochemistry and Molecular Biology, Jiamusi University School of Basic Medical Sciences, Jiamusi, 154000, Heilongjiang, People's Republic of China
| | - Hui Xu
- Department of Biochemistry and Molecular Biology, Jiamusi University School of Basic Medical Sciences, Jiamusi, 154000, Heilongjiang, People's Republic of China.
- Key Laboratory of Microecology-Immune Regulatory Network and Related Diseases, School of Basic Medicine, Jiamusi University, Jiamusi, 154000, Heilongjiang, People's Republic of China.
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15
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Borza CM, Bolas G, Pozzi A. Genetic and pharmacological tools to study the role of discoidin domain receptors in kidney disease. Front Pharmacol 2022; 13:1001122. [PMID: 36249782 PMCID: PMC9554349 DOI: 10.3389/fphar.2022.1001122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 08/29/2022] [Indexed: 11/13/2022] Open
Abstract
Following injury the kidney undergoes a repair process, which results in replacement of the injured tissue with little evidence of damage. However, repetitive injuries or inability of the kidney to stop the repair process result in abnormal deposition of extracellular matrix (ECM) components leading to fibrosis and organ dysfunction. The synthesis/degradation of ECM components is finely regulated by several factors, including discoidin domain receptors (DDRs). These are receptor tyrosine kinases that are activated by collagens. Upon activation, DDRs control several cell functions that, when exacerbated, contribute to kidney injury and fibrosis. DDRs are undetectable in healthy kidney, but become rapidly upregulated in several kidney fibrotic conditions, thus making them attractive anti-fibrotic targets. DDRs contribute to kidney injury and fibrosis by promoting apoptosis of injured kidney cells, stimulating the production of pro-inflammatory cytokines, and regulating the production of ECM components. They achieve these effects by activating canonical intracellular molecules or by directly interacting with nuclear chromatin and promoting the transcription of pro-fibrotic genes. The goal of this review is to highlight canonical and non-canonical mechanisms whereby DDRs contribute to kidney injury/fibrosis. This review will summarize key findings obtained using cells and mice lacking DDRs and it will discuss the discovery and development of targeted DDR small molecule- and antisense-based inhibitors. Understanding the molecular mechanisms whereby DDRs control kidney injury and fibrosis might enable us to not only develop more selective and potent inhibitors, but to also determine when DDR inhibition needs to be achieved to prevent and/or halt the development of kidney fibrosis.
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Affiliation(s)
- Corina M. Borza
- Department of Medicine (Division of Nephrology), Vanderbilt University School of Medicine, Nashville, TN, United States
| | - Gema Bolas
- Department of Medicine (Division of Nephrology), Vanderbilt University School of Medicine, Nashville, TN, United States
| | - Ambra Pozzi
- Department of Medicine (Division of Nephrology), Vanderbilt University School of Medicine, Nashville, TN, United States
- Veterans Affairs Hospitals, Nashville, TN, United States
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Lee SJ, Kim YA, Park KK. Anti-Fibrotic Effect of Synthetic Noncoding Decoy ODNs for TFEB in an Animal Model of Chronic Kidney Disease. Int J Mol Sci 2022; 23:ijms23158138. [PMID: 35897713 PMCID: PMC9330689 DOI: 10.3390/ijms23158138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 07/21/2022] [Accepted: 07/21/2022] [Indexed: 02/01/2023] Open
Abstract
Despite emerging evidence suggesting that autophagy occurs during renal interstitial fibrosis, the role of autophagy activation in fibrosis and the mechanism by which autophagy influences fibrosis remain controversial. Transcription factor EB (TFEB) is a master regulator of autophagy-related gene transcription, lysosomal biogenesis, and autophagosome formation. In this study, we examined the preventive effects of TFEB suppression on renal fibrosis. We injected synthesized TFEB decoy oligonucleotides (ODNs) into the tail veins of unilateral ureteral obstruction (UUO) mice to explore the regulation of autophagy in UUO-induced renal fibrosis. The expression of interleukin (IL)-1β, tumor necrosis factor-α (TNF-α), and collagen was decreased by TFEB decoy ODN. Additionally, TEFB ODN administration inhibited the expression of microtubule-associated protein light chain 3 (LC3), Beclin1, and hypoxia-inducible factor-1α (HIF-1α). We confirmed that TFEB decoy ODN inhibited fibrosis and autophagy in a UUO mouse model. The TFEB decoy ODNs also showed anti-inflammatory effects. Collectively, these results suggest that TFEB may be involved in the regulation of autophagy and fibrosis and that regulating TFEB activity may be a promising therapeutic strategy against kidney diseases.
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