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Yang H, Zhao Y, Chen Y, Yang T, Dou X, Li J, Yang G, Feng G, Fang H, Fan H, Zhang S. Dexmedetomidine Alleviates Acute Stress-Induced Acute Kidney Injury by Attenuating Inflammation and Oxidative Stress via Inhibiting the P2X 7R/NF-κB/NLRP3 Pathway in Rats. Inflammation 2024:10.1007/s10753-024-02065-8. [PMID: 38896231 DOI: 10.1007/s10753-024-02065-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 05/13/2024] [Accepted: 05/27/2024] [Indexed: 06/21/2024]
Abstract
This study aimed to investigate the potential protective effects of Dexmedetomidine (DEX) against acute kidney injury (AKI) induced by acute stress (AS). Wistar rats were divided into five groups: Control, DEX, AS, AS + DEX, and AS + A438079. The results showed that AS led to AKI by increasing inflammatory biomarkers and oxidative stress-related indicators. The acute stress model in rats was successfully established. Renal function, histopathology, oxidative stress, and inflammation were assessed. Localization of P2X7 receptor (P2X7R) was determined by immunofluorescence. Additionally, the key inflammatory proteins of the P2X7R/NF-κB/NLRP3 signaling pathway were measured by Western blotting. DEX significantly improved kidney function, alleviated kidney injury, and reduced oxidative stress and inflammation. DEX inhibited the activation of the P2X7R, decreased the expression of NF-κB, NLRP3 inflammasome, and Caspase-1, and inhibited the expression of interleukin-1β (IL-1β) and tumor necrosis factor α (TNFα). Furthermore, DEX also alleviated AS-induced AKI by inhibiting the excessive production of reactive oxygen species (ROS) and reducing oxidative stress. In conclusion, DEX attenuates AS-induced AKI by mitigating inflammation and oxidative stress through the inhibition of the P2X7R/NF-κB/NLRP3 pathway in rats.
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Affiliation(s)
- Haotian Yang
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Heilongjiang Academy of Agricultural Science Branch of Animal Husbandry and Veterinary Branch, Qiqihar, China
| | - Yuan Zhao
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Yongping Chen
- College of Veterinary Medicine, Agricultural University, Qingdao, China
| | - Tianyuan Yang
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Xinyi Dou
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Junfeng Li
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Guiyan Yang
- Department of Pathology and Laboratory Medicine, Davis Health, University of California, Sacramento, CA, USA
| | - Guofeng Feng
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Hao Fang
- College of Optoelectronic Engineering, Chongqing University, Chongqing, China
| | - Honggang Fan
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.
| | - Shuai Zhang
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.
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Guo Y, Feng C, Zhang Y, Hu K, Wang C, Wei X. Nicotinamide Supplementation Mitigates Oxidative Injury of Bovine Intestinal Epithelial Cells through Autophagy Modulation. Animals (Basel) 2024; 14:1483. [PMID: 38791701 PMCID: PMC11117298 DOI: 10.3390/ani14101483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2024] [Revised: 05/09/2024] [Accepted: 05/11/2024] [Indexed: 05/26/2024] Open
Abstract
The small intestine is important to the digestion and absorption of rumen undegradable nutrients, as well as the barrier functionality and immunological responses in ruminants. Oxidative stress induces a spectrum of pathophysiological symptoms and nutritional deficits, causing various gastrointestinal ailments. Previous studies have shown that nicotinamide (NAM) has antioxidant properties, but the potential mechanism has not been elucidated. The aim of this study was to explore the effects of NAM on hydrogen peroxide (H2O2)-induced oxidative injury in bovine intestinal epithelial cells (BIECs) and its potential mechanism. The results showed that NAM increased the cell viability and total antioxidant capacity (T-AOC) and decreased the release of lactate dehydrogenase (LDH) in BIECs challenged by H2O2. The NAM exhibited increased expression of catalase, superoxide dismutase 2, and tight junction proteins. The expression of autophagy-related proteins was increased in BIECs challenged by H2O2, and NAM significantly decreased the expression of autophagy-related proteins. When an autophagy-specific inhibitor was used, the oxidative injury in BIECs was not alleviated by NAM, and the T-AOC and the release of LDH were not affected. Collectively, these results indicated that NAM could alleviate oxidative injury in BIECs by enhancing antioxidant capacity and increasing the expression of tight junction proteins, and autophagy played a crucial role in the alleviation.
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Affiliation(s)
- Yihan Guo
- College of Animal Science and Technology & College of Veterinary Medicine, Zhejiang A&F University, Hangzhou 311300, China; (Y.G.); (C.F.); (Y.Z.); (K.H.)
| | - Changdong Feng
- College of Animal Science and Technology & College of Veterinary Medicine, Zhejiang A&F University, Hangzhou 311300, China; (Y.G.); (C.F.); (Y.Z.); (K.H.)
| | - Yiwei Zhang
- College of Animal Science and Technology & College of Veterinary Medicine, Zhejiang A&F University, Hangzhou 311300, China; (Y.G.); (C.F.); (Y.Z.); (K.H.)
| | - Kewei Hu
- College of Animal Science and Technology & College of Veterinary Medicine, Zhejiang A&F University, Hangzhou 311300, China; (Y.G.); (C.F.); (Y.Z.); (K.H.)
| | - Chong Wang
- College of Animal Science and Technology & College of Veterinary Medicine, Zhejiang A&F University, Hangzhou 311300, China; (Y.G.); (C.F.); (Y.Z.); (K.H.)
| | - Xiaoshi Wei
- College of Animal Science and Technology & College of Veterinary Medicine, Zhejiang A&F University, Hangzhou 311300, China; (Y.G.); (C.F.); (Y.Z.); (K.H.)
- Institute of Animal Health Products, Zhejiang Vegamax Biotechnology Co., Ltd., Anji 313300, China
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Yang K, Liu Y, Deng M, Wang P, Cheng D, Li S, He L. Imaging peroxynitrite in endoplasmic reticulum stress and acute lung injury with a near-infrared fluorescent probe. Anal Chim Acta 2024; 1286:342050. [PMID: 38049235 DOI: 10.1016/j.aca.2023.342050] [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: 10/09/2023] [Revised: 11/16/2023] [Accepted: 11/18/2023] [Indexed: 12/06/2023]
Abstract
BACKGROUND The cellular endoplasmic reticulum (ER) is responsible for various functions, including protein synthesis, folding, distribution, and calcium ion storage. Studies have linked ER stress with acute lung injury (ALI), which can result in oxidative stress and even cell death. Peroxynitrite (ONOO-) is a well-known reactive oxygen species (ROS) that contributes to various physiological and pathological processes in oxidative stress diseases. To understand the role of ER ONOO- in ALI, it is crucial to accurately measure its level in the ER. Unfortunately, there is currently no probe available to detect ER ONOO- in an ALI model. RESULTS To address this, we developed three near-infrared (NIR) fluorescent probes (DCM-F-ONOO, DCM-Cl-ONOO, and DCM-Br-ONOO) for the detection of ONOO- using pentafluorobenzenesulfonate (PFBS) moieties as fluorescence quenchers. Through comprehensive testing, we selected DCM-Br-ONOO as the best NIR fluorescent probe due to its rapid response (within 3 min), high selectivity, good sensitivity (LOD = 2.3 nM), and approximately 66-fold enhanced response to ONOO- in fluorescence intensity. The probe was successfully applied to detect changes in ONOO- levels induced by different drugs in the ER of living cells. Importantly, a significant increase in the level of ONOO- was observed in the ER of an ALI cell model (4.5-fold) and an ALI mouse model (2.5-fold) using the probe, which is essential for understanding the role of ONOO- in ER-associated diseases. SIGNIFICANCE Using DCM-Br-ONOO as a probe, present work further validated that the elevated levels of ONOO- secretion were accompanied by the ALI progressed. These findings may provide valuable results for figuring out the biological roles that ONOO- played in ALI.
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Affiliation(s)
- Ke Yang
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Department of Pharmacy and Pharmacology, Hengyang Medical School, University of South China, Hengyang, 421002, China
| | - Ying Liu
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Department of Pharmacy and Pharmacology, Hengyang Medical School, University of South China, Hengyang, 421002, China
| | - Min Deng
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Department of Pharmacy and Pharmacology, Hengyang Medical School, University of South China, Hengyang, 421002, China
| | - Peipei Wang
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Department of Pharmacy and Pharmacology, Hengyang Medical School, University of South China, Hengyang, 421002, China
| | - Dan Cheng
- Clinical Research Institute, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, 421002, China.
| | - Songjiao Li
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Department of Pharmacy and Pharmacology, Hengyang Medical School, University of South China, Hengyang, 421002, China.
| | - Longwei He
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Department of Pharmacy and Pharmacology, Hengyang Medical School, University of South China, Hengyang, 421002, China.
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Wei L, Fu J, He L, Wang H, Ruan J, Li F, Wu H. Microcystin-LR-induced autophagy regulates oxidative stress, inflammation, and apoptosis in grass carp ovary cells in vitro. Toxicol In Vitro 2023; 87:105520. [PMID: 36410616 DOI: 10.1016/j.tiv.2022.105520] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 11/10/2022] [Accepted: 11/15/2022] [Indexed: 11/23/2022]
Abstract
MC-LR is one of the cyanotoxins produced by fresh water cyanobacteria. Previous studies showed that autophagy played an important role in MC-LR-induced reproduction toxicity. However, information on the toxicological mechanism is limited. In this study, MC-LR could induce autophagy and apoptosis in GCO cells in vitro. In GCO cells that had been exposed to MC-LR, the inhibitor of 3-MA effectively decreased cell viability and damaged cell ultrastructure. Oxidative stress was significantly increased in the 3-MA + MC-LR group, accompanied by significantly increased MDA content and decreased CAT activity and GST, SOD1, GPx, and GR expression levels (P < 0.05). Inflammation was more serious in the 3-MA + MC-LR group than that of MC-LR group, which was evidenced by increasing expression levels of TNFα, IL11, MyD88, TNFR1, TRAF2, JNK, CCL4, and CCL20 (P < 0.05). Interestingly, the significant decrease of Caspase-9, Caspase-7, and Bax expression and significant increase of Bcl-2 and Bcl-2/Bax ratio in 3-MA + MC-LR group compared to MC-LR group, suggesting that extent of apoptosis were reduced. Taken together, these results indicated that MC-LR induced autophagy and apoptosis in GCO cells, however, the inhibition of autophagy decreased the extent of apoptosis, induced more serious oxidative stress and inflammation, which eventually induced cell death. Our findings provided some information for exploring the toxicity of MC-LR, however, the role of autophagy require further study in vivo.
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Affiliation(s)
- Lili Wei
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, Jiangxi Province 330045, PR China.
| | - Jianping Fu
- College of life sciences, Jiangxi Normal university, Nanchang, Jiangxi Province 330022, PR China
| | - Li He
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, Jiangxi Province 330045, PR China
| | - Hui Wang
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, Jiangxi Province 330045, PR China
| | - Jiming Ruan
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, Jiangxi Province 330045, PR China
| | - Fugui Li
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, Jiangxi Province 330045, PR China
| | - Huadong Wu
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, Jiangxi Province 330045, PR China.
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H 2S Sensors: Synthesis, Optical Properties, and Selected Biomedical Applications under Visible and NIR Light. Molecules 2023; 28:molecules28031295. [PMID: 36770961 PMCID: PMC9919052 DOI: 10.3390/molecules28031295] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/12/2023] [Accepted: 01/16/2023] [Indexed: 01/31/2023] Open
Abstract
Hydrogen sulfide (H2S) is an essential signaling gas within the cell, and its endogenous levels are correlated with various health diseases such as Alzheimer's disease, diabetes, Down's syndrome, and cardiovascular disease. Because it plays such diverse biological functions, being able to detect H2S quickly and accurately in vivo is an area of heightened scientific interest. Using probes that fluoresce in the near-infrared (NIR) region is an effective and convenient method of detecting H2S. This approach allows for compounds of high sensitivity and selectivity to be developed while minimizing cytotoxicity. Herein, we report a review on the synthesis, mechanisms, optical properties, and selected biomedical applications of H2S sensors.
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Dong JY, Yin HL, Hao H, Liu Y. Research Progress on Autophagy Regulation by Active Ingredients of Traditional Chinese Medicine in the Treatment of Acute Lung Injury. J Inflamm Res 2023; 16:1671-1691. [PMID: 37092134 PMCID: PMC10120836 DOI: 10.2147/jir.s398203] [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: 11/18/2022] [Accepted: 04/11/2023] [Indexed: 04/25/2023] Open
Abstract
Autophagy is a highly conserved process that maintains cell stability in eukaryotes, participates in the turnover of intracellular substances to maintain cell function, helps to resist pathogen invasion, and improves cell tolerance to environmental changes. Autophagy has been observed in many diseases, and the symptoms of these diseases are significantly improved by regulating autophagy. Autophagy is also involved in the development of lung diseases. Studies have shown that autophagy may play a beneficial or harmful role in acute lung injury (ALI), and ALI has been treated with traditional Chinese medicine designed to promote or inhibit autophagy. In this paper, the molecular mechanism and common pathways regulating autophagy and the relationship between autophagy and ALI are introduced, and the active ingredients of traditional Chinese medicine that improve ALI symptoms by regulating autophagy are summarized.
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Affiliation(s)
- Jin-yan Dong
- First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, People’s Republic of China
| | - Hong-Lin Yin
- Faculty of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, People’s Republic of China
| | - Hao Hao
- Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, People’s Republic of China
- Correspondence: Hao Hao; Yang Liu, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, People’s Republic of China, Tel +86-13583119291; +86-13864018185, Email ;
| | - Yang Liu
- Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, People’s Republic of China
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Gao P, Wu B, Ding Y, Yin B, Gu H. circEXOC5 promotes acute lung injury through the PTBP1/Skp2/Runx2 axis to activate autophagy. Life Sci Alliance 2022; 6:6/1/e202201468. [PMID: 36302650 PMCID: PMC9614700 DOI: 10.26508/lsa.202201468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 10/09/2022] [Accepted: 10/10/2022] [Indexed: 01/17/2023] Open
Abstract
To understand the pathogenesis of acute lung injury (ALI), we focused on circEXOC5, a significantly up-regulated circular RNA in ALI. Using the in vivo cecal ligation and puncture (CLP)-induced ALI mouse model and in vitro LPS-challenged mouse pulmonary microvascular endothelial cell (MPVEC) model, we examined the impacts of knockdown circEXOC5 on lung injury, inflammation, and autophagy. The regulation between circEXOC5, polypyrimidine tract-binding protein 1 (PTBP1), S-phase kinase-associated protein 2 (Skp2), and Runt-related transcription factor 2 (Runx2) was investigated by combining RNA immunoprecipitation, qRT-PCR, mRNA stability, and ubiquitination assays. The significance of PTBP1 in circEXOC5-induced ALI phenotypes was examined both in vitro and in vivo. circEXOC5 was up-regulated and associated with increased inflammation and activated autophagy in cecal ligation and puncture-induced ALI lung tissues and LPS-challenged MPVECs. Through the interaction with PTBP1, circEXOC5 accelerated Skp2 mRNA decay, an E3 ubiquitin ligase for Runx2, and therefore increased Runx2 expression. Functionally, overexpressing PTBP1 reversed shcircEXOC5-inhibited ALI, inflammation, or autophagy. The signaling cascade circEXOC5/PTBP1/Skp2/Runx2, by essentially regulating inflammation and autophagy in MPVECs, aggravates sepsis-induced ALI.
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Affiliation(s)
| | | | | | | | - Haoxiang Gu
- Department of Respiratory, Shanghai Children's Hospital, School of medicine, Shanghai Jiao Tong University, Shanghai, China
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Fu Z, Wu X, Zheng F, Zhang Y. Activation of the AMPK-ULK1 pathway mediated protective autophagy by sevoflurane anesthesia restrains LPS-induced acute lung injury (ALI). Int Immunopharmacol 2022; 108:108869. [DOI: 10.1016/j.intimp.2022.108869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 05/05/2022] [Accepted: 05/12/2022] [Indexed: 11/05/2022]
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Chen L, Gao Y, Zhao Y, Yang G, Wang C, Zhao Z, Li S. Chondroitin sulfate stimulates the secretion of H 2S by Desulfovibrio to improve insulin sensitivity in NAFLD mice. Int J Biol Macromol 2022; 213:631-638. [PMID: 35667460 DOI: 10.1016/j.ijbiomac.2022.05.195] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 05/12/2022] [Accepted: 05/30/2022] [Indexed: 01/21/2023]
Abstract
Hydrogen sulfide (H2S) is a bioactive gas regulating insulin secretion and sensitivity, produced by sulfate-reducing bacteria in the gut. The present study investigated the effect of chondroitin sulfate (CS) treatment, which indirectly increased the H2S production on nonalcoholic fatty liver disease (NAFLD). A 7-week CS supplementation had beneficial effects on body weight gain, liver function, hepatic histology, and serum lipid levels. CS could ameliorate diet-induced insulin resistance and improve insulin sensitivity via the AKT pathway, and modulate gut microbiota composition, especially increased the abundance of Desulfovibrio and elevated levels of hydrogen sulfide (H2S). Collectively, these findings suggested that CS treatment was positively correlated with Desulfovibrio in the gut, and the metabolic H2S flowed into the liver via the gut-liver axis, thereby triggering the AKT signaling pathway and improving insulin resistance. Thus, CS-induced alterations in the gut microbiota seem a promising for ameliorating NAFLD.
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Affiliation(s)
- Long Chen
- Institute of Animal Nutrition and Feed, Jilin Academy of Agricultural Sciences, Changchun 130033, PR China
| | - Yansong Gao
- Institute of Agricultural Products Processing Technology, Jilin Academy of Agricultural Sciences/National R&D Center for Milk Processing, Changchun 130033, PR China
| | - Yujuan Zhao
- Institute of Agricultural Products Processing Technology, Jilin Academy of Agricultural Sciences/National R&D Center for Milk Processing, Changchun 130033, PR China
| | - Ge Yang
- Institute of Agricultural Products Processing Technology, Jilin Academy of Agricultural Sciences/National R&D Center for Milk Processing, Changchun 130033, PR China
| | - Chao Wang
- Institute of Agricultural Products Processing Technology, Jilin Academy of Agricultural Sciences/National R&D Center for Milk Processing, Changchun 130033, PR China
| | - Zijian Zhao
- Institute of Agricultural Products Processing Technology, Jilin Academy of Agricultural Sciences/National R&D Center for Milk Processing, Changchun 130033, PR China.
| | - Shengyu Li
- Institute of Agricultural Products Processing Technology, Jilin Academy of Agricultural Sciences/National R&D Center for Milk Processing, Changchun 130033, PR China.
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Cirino G, Szabo C, Papapetropoulos A. Physiological roles of hydrogen sulfide in mammalian cells, tissues and organs. Physiol Rev 2022; 103:31-276. [DOI: 10.1152/physrev.00028.2021] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
H2S belongs to the class of molecules known as gasotransmitters, which also includes nitric oxide (NO) and carbon monoxide (CO). Three enzymes are recognized as endogenous sources of H2S in various cells and tissues: cystathionine g-lyase (CSE), cystathionine β-synthase (CBS) and 3-mercaptopyruvate sulfurtransferase (3-MST). The current article reviews the regulation of these enzymes as well as the pathways of their enzymatic and non-enzymatic degradation and elimination. The multiple interactions of H2S with other labile endogenous molecules (e.g. NO) and reactive oxygen species are also outlined. The various biological targets and signaling pathways are discussed, with special reference to H2S and oxidative posttranscriptional modification of proteins, the effect of H2S on channels and intracellular second messenger pathways, the regulation of gene transcription and translation and the regulation of cellular bioenergetics and metabolism. The pharmacological and molecular tools currently available to study H2S physiology are also reviewed, including their utility and limitations. In subsequent sections, the role of H2S in the regulation of various physiological and cellular functions is reviewed. The physiological role of H2S in various cell types and organ systems are overviewed. Finally, the role of H2S in the regulation of various organ functions is discussed as well as the characteristic bell-shaped biphasic effects of H2S. In addition, key pathophysiological aspects, debated areas, and future research and translational areas are identified A wide array of significant roles of H2S in the physiological regulation of all organ functions emerges from this review.
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Affiliation(s)
- Giuseppe Cirino
- Department of Pharmacy, School of Medicine, University of Naples Federico II, Naples, Italy
| | - Csaba Szabo
- Chair of Pharmacology, Section of Medicine, University of Fribourg, Switzerland
| | - Andreas Papapetropoulos
- Laboratory of Pharmacology, Faculty of Pharmacy, National and Kapodistrian University of Athens, Athens, Greece & Clinical, Experimental Surgery and Translational Research Center, Biomedical Research Foundation of the Academy of Athens, Greece
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Li T, Zhao J, Miao S, Chen Y, Xu Y, Liu Y. Protective effect of H 2S on LPS‑induced AKI by promoting autophagy. Mol Med Rep 2022; 25:96. [PMID: 35059738 PMCID: PMC8809055 DOI: 10.3892/mmr.2022.12612] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 12/17/2021] [Indexed: 11/06/2022] Open
Abstract
The present study explored the protective effect of exogenous hydrogen sulfide (H2S) on lipopolysaccharide (LPS)‑induced acute kidney injury (AKI) and the underlying mechanisms. To establish an AKI injury mouse model, LPS (10 mg/kg) was intraperitoneally injected into mice pretreated with 0.8 mg/kg sodium hydrosulfide hydrate (NaHS), an H2S donor. The mouse survival rate and the degree of kidney injury were examined. To construct a cell damage model, HK‑2 cells were pretreated with different concentrations (0.1, 0.3 and 0.5 mM) of NaHS, and then the cells were stimulated with LPS (1 µg/ml). The cell viability, autophagy, apoptosis levels and the release of inflammatory factors were examined in mouse kidney tissue and HK‑2 renal tubular epithelial cells. It was found that pretreatment with NaHS significantly improved the survival rate of septic AKI mice, and reduced the renal damage, release of inflammatory factors and apoptosis. In HK‑2 cells, NaHS protected cells from LPS caused damage via promoting autophagy and inhibiting apoptosis and the release of inflammatory factors. In order to clarify the relationship between autophagy and apoptosis and inflammatory factors, this study used 3‑methyladenine (3‑MA) to inhibit autophagy. The results revealed that 3‑MA eliminated the protective effect of NaHS in HK‑2 cells and AKI mice. Overall, NaHS can protect from LPS‑induced AKI by promoting autophagy and inhibiting apoptosis and the release of inflammatory factors.
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Affiliation(s)
- Ting Li
- Department of Physiology, Changzhi Medical College, Changzhi, Shanxi 046000, P.R. China
| | - Jie Zhao
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan 410078, P.R. China
| | - Shuying Miao
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, Hunan 410078, P.R. China
| | - Yiyang Chen
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, Hunan 410078, P.R. China
| | - Yunfei Xu
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, Hunan 410078, P.R. China
| | - Ying Liu
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, Hunan 410078, P.R. China
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