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Xia L, Jiang JH, Liu JY, Zhang TY, Dong YX, Liu QH, Chai YF, Liu YC, Shou ST. H-151 attenuates lipopolysaccharide-induced acute kidney injury by inhibiting the STING-TBK1 pathway. Ren Fail 2024; 46:2363591. [PMID: 38856314 PMCID: PMC11168233 DOI: 10.1080/0886022x.2024.2363591] [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: 12/21/2023] [Accepted: 05/30/2024] [Indexed: 06/11/2024] Open
Abstract
Sepsis is a severe systemic infectious disease that often leads to multi-organ dysfunction. One of the common and serious complications of sepsis is renal injury. In this study, we aimed to investigate the potential mechanistic role of a novel compound called H-151 in septic kidney injury. We also examined its impact on renal function and mouse survival rates. Initially, we confirmed abnormal activation of the STING-TBK1 signaling pathway in the kidneys of septic mice. Subsequently, we treated the mice with H-151 and observed significant improvement in sepsis-induced renal dysfunction. This was evidenced by reductions in blood creatinine and urea nitrogen levels, as well as a marked decrease in inflammatory cytokine levels. Furthermore, H-151 substantially improved the seven-day survival rate of septic mice, indicating its therapeutic potential. Importantly, H-151 also exhibited an inhibitory effect on renal apoptosis levels, further highlighting its mechanism of protecting against septic kidney injury. These study findings not only offer new insights into the treatment of septic renal injury but also provide crucial clues for further investigations into the regulatory mechanisms of the STING-TBK1 signaling pathway and potential drug targets.
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Affiliation(s)
- Lei Xia
- Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin, China
| | - Jia-hui Jiang
- Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin, China
| | - Jie-yu Liu
- Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin, China
| | - Tian-yi Zhang
- Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin, China
| | - Yu-xin Dong
- Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin, China
| | - Qi-hui Liu
- Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin, China
| | - Yan-Fen Chai
- Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin, China
| | - Yan-cun Liu
- Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin, China
| | - Song-tao Shou
- Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin, China
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2
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Yang S, Guo J, Xiong Y, Han G, Luo T, Peng S, Liu J, Hu T, Zha Y, Lin X, Tan Y, Zhang J. Unraveling the genetic and molecular landscape of sepsis and acute kidney injury: A comprehensive GWAS and machine learning approach. Int Immunopharmacol 2024; 137:112420. [PMID: 38851159 DOI: 10.1016/j.intimp.2024.112420] [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: 03/11/2024] [Revised: 05/29/2024] [Accepted: 06/03/2024] [Indexed: 06/10/2024]
Abstract
OBJECTIVES This study aimed to explore the underlying mechanisms of sepsis and acute kidney injury (AKI), including sepsis-associated AKI (SA-AKI), a frequent complication in critically ill sepsis patients. METHODS GWAS data was analyzed for genetic association between AKI and sepsis. Then, we systematically applied three distinct machine learning algorithms (LASSO, SVM-RFE, RF) to rigorously identify and validate signature genes of SA-AKI, assessing their diagnostic and prognostic value through ROC curves and survival analysis. The study also examined the functional and immunological aspects of these genes, potential drug targets, and ceRNA networks. A mouse model of sepsis was created to test the reliability of these signature genes. RESULTS LDSC confirmed a positive genetic correlation between AKI and sepsis, although no significant shared loci were found. Bidirectional MR analysis indicated mutual increased risks of AKI and sepsis. Then, 311 key genes common to sepsis and AKI were identified, with 42 significantly linked to sepsis prognosis. Six genes, selected through LASSO, SVM-RFE, and RF algorithms, showed excellent predictive performance for sepsis, AKI, and SA-AKI. The models demonstrated near-perfect AUCs in both training and testing datasets, and a perfect AUC in a sepsis mouse model. Significant differences in immune cells, immune-related pathways, HLA, and checkpoint genes were found between high- and low-risk groups. The study identified 62 potential drug treatments for sepsis and AKI and constructed a ceRNA network. CONCLUSIONS The identified signature genes hold potential clinical applications, including prognostic evaluation and targeted therapeutic strategies for sepsis and AKI. However, further research is needed to confirm these findings.
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Affiliation(s)
- Sha Yang
- Guizhou University Medical College, Guiyang 550025, Guizhou Province, China
| | - Jing Guo
- Guizhou University Medical College, Guiyang 550025, Guizhou Province, China
| | - Yunbiao Xiong
- Department of Neurosurgery, Guizhou Provincial People's Hospital, Guiyang, China
| | - Guoqiang Han
- Department of Neurosurgery, Guizhou Provincial People's Hospital, Guiyang, China
| | - Tao Luo
- Department of Neurosurgery, Guizhou Provincial People's Hospital, Guiyang, China
| | - Shuo Peng
- Department of Neurosurgery, Guizhou Provincial People's Hospital, Guiyang, China
| | - Jian Liu
- Guizhou University Medical College, Guiyang 550025, Guizhou Province, China; Department of Neurosurgery, Guizhou Provincial People's Hospital, Guiyang, China
| | - Tieyi Hu
- Department of Neurology, the Affiliated Dazu Hospital of Chongqing Medical University , China
| | - Yan Zha
- Guizhou University Medical College, Guiyang 550025, Guizhou Province, China; Department of Nephrology, Guizhou Provincial People's Hospital, Guiyang, China
| | - Xin Lin
- Department of Nephrology, Guizhou Provincial People's Hospital, Guiyang, China.
| | - Ying Tan
- Department of Neurosurgery, Guizhou Provincial People's Hospital, Guiyang, China.
| | - Jiqin Zhang
- Department of Anesthesiology, Guizhou Provincial People's Hospital, Guiyang, China.
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Tuoheti K, Bai X, Yang L, Wang X, Cao Y, Yisha Z, Guo L, Zhan S, Wu Z, Liu T. Forsythiaside A suppresses renal fibrosis and partial epithelial-mesenchymal transition by targeting THBS1 through the PI3K/AKT signaling pathway. Int Immunopharmacol 2024; 129:111650. [PMID: 38342062 DOI: 10.1016/j.intimp.2024.111650] [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] [Revised: 01/16/2024] [Accepted: 01/31/2024] [Indexed: 02/13/2024]
Abstract
Renal fibrosis is a key feature of chronic kidney disease (CKD) progression, whereas no proven effective anti-fibrotic treatments. Forsythiaside A (FTA), derived from Forsythia suspense, has been found to possess nephroprotective properties. However, there is limited research on its anti-fibrotic effects, and its mechanism of action remains unknown. This study aimed to investigate the suppressive effects of FTA on renal fibrosis and explore the underlying mechanisms. In vitro, we established a HK2 cell model induced by transforming growth factor β1 (TGF-β1), and in vivo, we used a mice model induced by unilateral ureteral obstruction (UUO). CCK-8 assay, qRT-PCR, Western blotting, immunofluorescence, flow cytometry, histological staining, immunohistochemistry, TUNEL assay, RNA transcriptome sequencing, and molecular docking were performed. The results showed that FTA (40 μM or 80 μM) treatment improved cell viability and suppressed TGF-β1-induced fibrotic changes and partial epithelial-mesenchymal transition (EMT). Furthermore, FTA treatment reversed the activation of the PI3K/AKT signaling pathway, and THBS1 was identified as the target gene. We found that THBS1 knockdown suppressed the activation of the PI3K/AKT signaling pathway and reduced the fibrosis and partial EMT-related protein level. Conversely, THBS1 overexpression activated the PI3K/AKT signaling pathway and exacerbated renal fibrosis and partial EMT. In vivo, mice were administered FTA (30 or 60 mg/kg) for 2 weeks, and the results demonstrated that FTA administration significantly mitigated tubular injury, tubulointerstitial fibrosis, partial EMT, and apoptosis. In conclusion, FTA inhibited renal fibrosis and partial EMT by targeting THBS1 and inhibiting activation of the PI3K/AKT pathway.
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Affiliation(s)
- Kuerban Tuoheti
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Xiaojie Bai
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Lijie Yang
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Xiaolong Wang
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Yuanfei Cao
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Zuhaer Yisha
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Linfa Guo
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Shanzhi Zhan
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Zhonghua Wu
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China; Cancer Precision Diagnosis and Treatment and Translational Medicine Hubei Engineering Research Center, Wuhan, China; Hubei Province Key Laboratory of Urinary System Diseases, Wuhan, China.
| | - Tongzu Liu
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China; Cancer Precision Diagnosis and Treatment and Translational Medicine Hubei Engineering Research Center, Wuhan, China; Hubei Province Key Laboratory of Urinary System Diseases, Wuhan, China.
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Cheng C, Yuan Y, Yuan F, Li X. Acute kidney injury: exploring endoplasmic reticulum stress-mediated cell death. Front Pharmacol 2024; 15:1308733. [PMID: 38434710 PMCID: PMC10905268 DOI: 10.3389/fphar.2024.1308733] [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: 10/07/2023] [Accepted: 01/31/2024] [Indexed: 03/05/2024] Open
Abstract
Acute kidney injury (AKI) is a global health problem, given its substantial morbidity and mortality rates. A better understanding of the mechanisms and factors contributing to AKI has the potential to guide interventions aimed at mitigating the risk of AKI and its subsequent unfavorable outcomes. Endoplasmic reticulum stress (ERS) is an intrinsic protective mechanism against external stressors. ERS occurs when the endoplasmic reticulum (ER) cannot deal with accumulated misfolded proteins completely. Excess ERS can eventually cause pathological reactions, triggering various programmed cell death (autophagy, ferroptosis, apoptosis, pyroptosis). This article provides an overview of the latest research progress in deciphering the interaction between ERS and different programmed cell death. Additionally, the report consolidates insights into the roles of ERS in AKI and highlights the potential avenues for targeting ERS as a treatment direction toward for AKI.
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Affiliation(s)
- Cong Cheng
- Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yuan Yuan
- Department of Emergency, Changsha Hospital of Traditional Chinese Medicine (Changsha Eighth Hospital), Changsha, Hunan, China
| | - Fang Yuan
- Department of Pharmacy, The Third Hospital of Changsha, Changsha, Hunan, China
- Hunan Provincial Key Laboratory of Anti-Resistance Microbial Drugs, Changsha, Hunan, China
| | - Xin Li
- Department of Pharmacy, The Third Hospital of Changsha, Changsha, Hunan, China
- Hunan Provincial Key Laboratory of Anti-Resistance Microbial Drugs, Changsha, Hunan, China
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Jin H, Yang Y, Zhu X, Zhou Y, Xu Y, Li J, Qi C, Shao X, Wu J, Wu S, Cai H, Gu L, Mou S, Ni Z, Li S, Lin Q. DDRGK1-mediated ER-phagy attenuates acute kidney injury through ER-stress and apoptosis. Cell Death Dis 2024; 15:63. [PMID: 38233375 PMCID: PMC10794694 DOI: 10.1038/s41419-024-06449-4] [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: 09/13/2023] [Revised: 01/03/2024] [Accepted: 01/08/2024] [Indexed: 01/19/2024]
Abstract
Acute kidney injury (AKI) constitutes a prevalent clinical syndrome characterized by elevated morbidity and mortality rates, emerging as a significant public health issue. This study investigates the interplay between endoplasmic reticulum (ER) stress, unfolded protein response (UPR), and ER-associated degradation (ER-phagy) in the pathogenesis of AKI. We employed four distinct murine models of AKI-induced by contrast media, ischemia-reperfusion injury, cisplatin, and folic acid-to elucidate the relationship between ER-phagy, ER stress, and apoptosis. Our findings reveal a marked decrease in ER-phagy coinciding with an accumulation of damaged ER, elevated ER stress, and increased apoptosis across all AKI models. Importantly, overexpression of DDRGK1 in HK-2 cells enhanced ER-phagy levels, ameliorating contrast-induced ER stress and apoptosis. These findings unveil a novel protective mechanism in AKI, wherein DDRGK1-UFL1-mediated ER-phagy mitigates ER stress and apoptosis in renal tubular epithelial cells. Our results thereby contribute to understanding the molecular underpinnings of AKI and offer potential therapeutic targets for its treatment.
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Affiliation(s)
- Haijiao Jin
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Shanghai Peritoneal Dialysis Research Center, Ren Ji Hospital, Uremia Diagnosis and Treatment Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, China
| | - Yuanting Yang
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Shanghai Peritoneal Dialysis Research Center, Ren Ji Hospital, Uremia Diagnosis and Treatment Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, China
| | - Xuying Zhu
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Shanghai Peritoneal Dialysis Research Center, Ren Ji Hospital, Uremia Diagnosis and Treatment Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, China
| | - Yin Zhou
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Shanghai Peritoneal Dialysis Research Center, Ren Ji Hospital, Uremia Diagnosis and Treatment Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, China
| | - Yao Xu
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Shanghai Peritoneal Dialysis Research Center, Ren Ji Hospital, Uremia Diagnosis and Treatment Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, China
| | - Jialin Li
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Shanghai Peritoneal Dialysis Research Center, Ren Ji Hospital, Uremia Diagnosis and Treatment Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, China
| | - Chaojun Qi
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Shanghai Peritoneal Dialysis Research Center, Ren Ji Hospital, Uremia Diagnosis and Treatment Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, China
| | - Xinghua Shao
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Shanghai Peritoneal Dialysis Research Center, Ren Ji Hospital, Uremia Diagnosis and Treatment Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, China
| | - Jingkui Wu
- Department of Nephrology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201200, China
| | - Shan Wu
- Department of Endoscopy, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China
| | - Hong Cai
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Shanghai Peritoneal Dialysis Research Center, Ren Ji Hospital, Uremia Diagnosis and Treatment Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, China
| | - Leyi Gu
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Shanghai Peritoneal Dialysis Research Center, Ren Ji Hospital, Uremia Diagnosis and Treatment Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, China
| | - Shan Mou
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Shanghai Peritoneal Dialysis Research Center, Ren Ji Hospital, Uremia Diagnosis and Treatment Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, China
| | - Zhaohui Ni
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Shanghai Peritoneal Dialysis Research Center, Ren Ji Hospital, Uremia Diagnosis and Treatment Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, China.
| | - Shu Li
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Shanghai Peritoneal Dialysis Research Center, Ren Ji Hospital, Uremia Diagnosis and Treatment Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, China.
| | - Qisheng Lin
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Shanghai Peritoneal Dialysis Research Center, Ren Ji Hospital, Uremia Diagnosis and Treatment Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, China.
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Xiang H, Zhang Y, Wu Y, Xu Y, Hong Y. Aurantio-obtusin exerts an anti-inflammatory effect on acute kidney injury by inhibiting NF-κB pathway. THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY : OFFICIAL JOURNAL OF THE KOREAN PHYSIOLOGICAL SOCIETY AND THE KOREAN SOCIETY OF PHARMACOLOGY 2024; 28:11-19. [PMID: 38154960 PMCID: PMC10762489 DOI: 10.4196/kjpp.2024.28.1.11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 09/20/2023] [Accepted: 10/04/2023] [Indexed: 12/30/2023]
Abstract
Acute kidney injury (AKI) is one of the major complications of sepsis. Aurantio-obtusin (AO) is an anthraquinone compound with antioxidant and anti-inflammatory activities. This study was developed to concentrate on the role and mechanism of AO in sepsis-induced AKI. Lipopolysaccharide (LPS)-stimulated human renal proximal tubular epithelial cells (HK-2) and BALB/c mice receiving cecal ligation and puncture (CLP) surgery were used to establish in vitro cell model and in vivo mouse model. HK-2 cell viability was measured using MTT assays. Histological alterations of mouse renal tissues were analyzed via hematoxylin and eosin staining. Renal function of mice was assessed by measuring the levels of serum creatinine (SCr) and blood urea nitrogen (BUN). The concentrations of pro-inflammatory cytokines in HK-2 cells and serum samples of mice were detected using corresponding ELISA kits. Protein levels of factors associated with nuclear factor kappa-B (NF-κB) pathway were measured in HK-2 cells and renal tissues by Western blotting. AO exerted no cytotoxic effect on HK-2 cells and AO dose-dependently rescued LPS-induced decrease in HK-2 cell viability. The concentrations of pro-inflammatory cytokines were increased in response to LPS or CLP treatment, and the alterations were reversed by AO treatment. For in vivo experiments, AO markedly ameliorated renal injury and reduced high levels of SCr and BUN in mice underwent CLP operation. In addition, AO administration inhibited the activation of NF-κB signaling pathway in vitro and in vivo. In conclusion, AO alleviates septic AKI by suppressing inflammatory responses through inhibiting the NF-κB pathway.
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Affiliation(s)
- Haiyan Xiang
- Department of Nephrology, Wuhan Sixth Hospital, Affiliated Hospital of Jianghan University, Wuhan 430014, Hubei, China
| | - Yun Zhang
- Department of Nephrology, Wuhan Sixth Hospital, Affiliated Hospital of Jianghan University, Wuhan 430014, Hubei, China
| | - Yan Wu
- Department of Nephrology, Wuhan Sixth Hospital, Affiliated Hospital of Jianghan University, Wuhan 430014, Hubei, China
| | - Yaling Xu
- Department of Nephrology, Wuhan Sixth Hospital, Affiliated Hospital of Jianghan University, Wuhan 430014, Hubei, China
| | - Yuanhao Hong
- Department of Nephrology, Wuhan Sixth Hospital, Affiliated Hospital of Jianghan University, Wuhan 430014, Hubei, China
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Liu M, Guo P, Zeng M, Zhang Y, Jia J, Liu Y, Chen X, Kuang H, Feng W, Zheng X. Effects and mechanisms of frehmaglutin D and rehmaionoside C improve LPS-induced acute kidney injury through the estrogen receptor-mediated TLR4 pathway in vivo and in vitro. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 123:155218. [PMID: 37980806 DOI: 10.1016/j.phymed.2023.155218] [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: 07/27/2023] [Revised: 10/30/2023] [Accepted: 11/12/2023] [Indexed: 11/21/2023]
Abstract
BACKGROUND Sepsis-induced acute kidney injury (S-AKI) is an inflammatory disease with sex differences and there has no effective drugs to cure it. Frehmaglutin D (Fre D) and rehmaionoside C (Reh C) are two violetone compounds with estrogenic activity isolated from Rehmannia glutinosa. However, whether these two drugs exert protective effects on S-AKI through their estrogen-like activity are unclear. PURPOSE This study aimed to explore the effects and mechanisms of Fre D and Reh C on lipopolysaccharide (LPS)-induced S-AKI through the estrogen receptor pathway in vivo and in vitro and to explore the interaction between ER and TLR4 for the first time. METHODS The LPS-induced female BALB/c mice S-AKI mouse model was established by adding the estrogen receptor antagonist ICI182,780. Renal function, inflammation, oxidative stress, apoptosis, immune cells, and expression of key proteins of the ER-TLR4-IL-1β pathway were tested. The affinity of Fre D and Reh C for the ER was investigated by molecular docking. Then, an in vitro S-AKI model was established, and ERα/ERβ antagonists (MPP/PHTPP) were added and combined with gene overexpression techniques. The interaction between ER and TLR4 was further explored by Co-IP, GST pull-down and SPR techniques. RESULTS Fre D and Reh C ameliorated LPS-induced renal damage, inflammation in mice, regulated the immune cells, decreased ROS levels, increased ERα and ERβ protein expression, and decreased TLR4, caspase 11 and IL-1β protein expression. These effects were blocked by ICI182,780. Molecular docking results showed that Fre D and Reh C bound ERα and ERβ with similar potency. The results of in vitro suggested that Fre D and Reh C reduced the levels of inflammation, ROS and apoptosis, TLR4, caspase 11, and IL-1β protein expression and increased ERα/ERβ protein expression in cells. All of these effects were reversed by the addition of MPP/PHTPP and further enhanced after ERα/ERβ gene overexpression with no significant difference in effects. Moreover, there was an indirect or direct interaction between ER and TLR4, and the binding of ERα and ERβ to TLR4 was concentration dependent. CONCLUSION Fre D and Reh C may improve S-AKI through the ER-TLR4-IL-1β pathway and may act on both ERα and ERβ receptors. Moreover, ERα and ERβ may interact directly or indirectly with TLR4, which was studied for the first time.
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Affiliation(s)
- Meng Liu
- Department of Medicine, Henan University of Chinese Medicine, Zhengzhou 450046, China; Key Laboratory of Basic and Application Research of Beiyao (Heilongjiang University of Chinese Medicine), Ministry of Education, Harbin 150000, Heilongjiang, China; The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou 450046, China
| | - Pengli Guo
- Department of Medicine, Henan University of Chinese Medicine, Zhengzhou 450046, China; The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou 450046, China
| | - Mengnan Zeng
- Department of Medicine, Henan University of Chinese Medicine, Zhengzhou 450046, China; The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou 450046, China
| | - Yuhan Zhang
- Department of Medicine, Henan University of Chinese Medicine, Zhengzhou 450046, China; The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou 450046, China
| | - Jufang Jia
- Department of Medicine, Henan University of Chinese Medicine, Zhengzhou 450046, China; The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou 450046, China
| | - Yanling Liu
- Department of Medicine, Henan University of Chinese Medicine, Zhengzhou 450046, China; The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou 450046, China
| | - Xu Chen
- Department of Medicine, Henan University of Chinese Medicine, Zhengzhou 450046, China; The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou 450046, China
| | - Haixue Kuang
- Key Laboratory of Basic and Application Research of Beiyao (Heilongjiang University of Chinese Medicine), Ministry of Education, Harbin 150000, Heilongjiang, China
| | - Weisheng Feng
- Department of Medicine, Henan University of Chinese Medicine, Zhengzhou 450046, China; The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou 450046, China.
| | - Xiaoke Zheng
- Department of Medicine, Henan University of Chinese Medicine, Zhengzhou 450046, China; The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou 450046, China.
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8
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Kim YE, Bak SB, Kim MJ, Bae SJ, Lee WY, Kim YW. Forsythiaside A Activates AMP-Activated Protein Kinase and Regulates Oxidative Stress via Nrf2 Signaling. Int J Mol Sci 2023; 24:17033. [PMID: 38069356 PMCID: PMC10707188 DOI: 10.3390/ijms242317033] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 11/23/2023] [Accepted: 11/27/2023] [Indexed: 12/18/2023] Open
Abstract
Forsythiaside A (FA) is an active constituent isolated from Forsythia suspensa, a beneficial herb used in traditional medicine known for its antioxidant and anti-inflammatory properties. Although various studies have suggested that FA has the protective effects, its impacts on arachidonic acid (AA) plus iron in vitro models and carbon tetrachloride (CCl₄)-induced mouse liver damage in vivo have not been explored. In this study, HepG2 cells were subjected to AA + iron treatment to induce apoptosis and mitochondrial impairment and determine the molecular mechanisms. FA exhibited protective effects by inhibiting cell damage and reactive oxygen species (ROS) production induced by AA + iron, as assessed via immunoblot and flow cytometry analyses. Further molecular investigations revealed that FA resulted in the activation of extracellular-signal-related protein kinase (ERK), which subsequently triggered the activation of AMP-activated protein kinase (AMPK), a critical regulator of cellular oxidative stress. Additionally, FA modulated the nuclear factor erythroid 2-related factor 2 (Nrf2) signaling pathway, which is a significant antioxidant transcription factor regulated by the AMPK pathway. For in vivo studies, mice were orally administered FA and then subjected to induction of CCl₄-based hepatotoxicity. The protective effect of FA was confirmed via blood biochemistry and immunohistochemical analyses. In conclusion, our findings demonstrated the protective effects of FA against oxidative stress both in vitro and in vivo, thus indicating that FA is a potential candidate for liver protection. Our study sheds light on the mechanistic pathways involved in the antioxidant effects of FA, highlighting the hepatoprotective potential of naturally occurring compounds in traditional herbs, such as FA.
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Affiliation(s)
- Young Eun Kim
- AI-Bio Convergence DDI Basic Research Lab., School of Korean Medicine, Dongguk University, Gyeongju 38066, Republic of Korea; (Y.E.K.); (S.-B.B.); (M.-J.K.); (S.-J.B.); (W.-Y.L.)
| | - Seon-Been Bak
- AI-Bio Convergence DDI Basic Research Lab., School of Korean Medicine, Dongguk University, Gyeongju 38066, Republic of Korea; (Y.E.K.); (S.-B.B.); (M.-J.K.); (S.-J.B.); (W.-Y.L.)
| | - Min-Jin Kim
- AI-Bio Convergence DDI Basic Research Lab., School of Korean Medicine, Dongguk University, Gyeongju 38066, Republic of Korea; (Y.E.K.); (S.-B.B.); (M.-J.K.); (S.-J.B.); (W.-Y.L.)
| | - Su-Jin Bae
- AI-Bio Convergence DDI Basic Research Lab., School of Korean Medicine, Dongguk University, Gyeongju 38066, Republic of Korea; (Y.E.K.); (S.-B.B.); (M.-J.K.); (S.-J.B.); (W.-Y.L.)
- College of Korean Medicine, Wonkwang University, Iksan 54538, Republic of Korea
| | - Won-Yung Lee
- AI-Bio Convergence DDI Basic Research Lab., School of Korean Medicine, Dongguk University, Gyeongju 38066, Republic of Korea; (Y.E.K.); (S.-B.B.); (M.-J.K.); (S.-J.B.); (W.-Y.L.)
- College of Korean Medicine, Wonkwang University, Iksan 54538, Republic of Korea
| | - Young Woo Kim
- AI-Bio Convergence DDI Basic Research Lab., School of Korean Medicine, Dongguk University, Gyeongju 38066, Republic of Korea; (Y.E.K.); (S.-B.B.); (M.-J.K.); (S.-J.B.); (W.-Y.L.)
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9
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Yang W, Zhang M, Li J, Qu S, Zhou F, Liu M, Li L, Liu Z, Zen K. YTHDF1 mitigates acute kidney injury via safeguarding m 6A-methylated mRNAs in stress granules of renal tubules. Redox Biol 2023; 67:102921. [PMID: 37857002 PMCID: PMC10587769 DOI: 10.1016/j.redox.2023.102921] [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: 09/01/2023] [Revised: 09/23/2023] [Accepted: 10/03/2023] [Indexed: 10/21/2023] Open
Abstract
Acute kidney injury (AKI) presents a daunting challenge with limited therapeutic options. To explore the contribution of N6-methyladenosine (m6A) in AKI development, we have investigated m6A-modified mRNAs within renal tubular cells subjected to injuries induced by diverse stressors. Notably, while the overall level of m6A-modified RNA remains unaltered in renal tubular cells facing stress, a distinct phenomenon emerges-mRNAs bearing m6A methylation exhibit a pronounced tendency to accumulate within stress granules (SGs), structures induced in response to these challenges. Cumulation of m6A-modified mRNA in SGs is orchestrated by YTHDF1, a m6A 'reader' closely associated with SGs. Strikingly, AKI patients and various mouse AKI models showcase elevated levels of renal tubular YTHDF1. Depleting YTHDF1 within renal tubular cells leads to a marked reduction in m6A-modified mRNA accumulation within SGs, accompanied by an escalation in cell apoptosis under stress challenges. The significance of YTHDF1's protective role is further underscored by findings in AKI mouse models triggered by cisplatin or renal ischemia-reperfusion treatments. In particular, renal tubular-specific YTHDF1 knockout mice exhibit heightened AKI severity when contrasted with their wild-type counterparts. Mechanistic insights reveal that YTHDF1 fulfills a crucial function by safeguarding m6A-modified mRNAs that favor cell survival-exemplified by SHPK1-within SGs amid stress-challenged renal tubular cells. Our findings collectively shed light on the pivotal role of YTHDF1 in shielding renal tubules against AKI, through its adeptness in recruiting and preserving m6A-modified mRNAs within stress-induced SGs.
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Affiliation(s)
- Wenwen Yang
- State Key Laboratory of Pharmaceutical Biotechnology, Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, Nanjing University School of Life Sciences, Nanjing, Jiangsu, 210046, China
| | - Mingchao Zhang
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, Nanjing University School of Medicine, Nanjing, Jiangsu, 210002, China
| | - Jiacheng Li
- State Key Laboratory of Pharmaceutical Biotechnology, Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, Nanjing University School of Life Sciences, Nanjing, Jiangsu, 210046, China
| | - Shuang Qu
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Fenglian Zhou
- State Key Laboratory of Pharmaceutical Biotechnology, Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, Nanjing University School of Life Sciences, Nanjing, Jiangsu, 210046, China
| | - Minghui Liu
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Limin Li
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Zhihong Liu
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, Nanjing University School of Medicine, Nanjing, Jiangsu, 210002, China.
| | - Ke Zen
- State Key Laboratory of Pharmaceutical Biotechnology, Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, Nanjing University School of Life Sciences, Nanjing, Jiangsu, 210046, China.
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