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Guo R, Liu H, Su R, Mao Q, Zhao M, Zhang H, Mu J, Zhao N, Wang Y, Hao Y. Tanreqing injection inhibits influenza virus replication by promoting the fusion of autophagosomes with lysosomes: An integrated pharmacological study. JOURNAL OF ETHNOPHARMACOLOGY 2024; 331:118159. [PMID: 38677572 DOI: 10.1016/j.jep.2024.118159] [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: 02/07/2024] [Revised: 04/01/2024] [Accepted: 04/05/2024] [Indexed: 04/29/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Tanreqing injection (TRQ) is widely used, traditional Chinese medicine (TCM) injection used in China to treat respiratory infections. Modern pharmacological studies have confirmed that TRQ can protect against influenza viruses. However, the mechanism by which TRQ inhibits influenza viruses remains unclear. AIM OF THE STUDY To explore the therapeutic effects and possible mechanisms of TRQ inhibition by the influenza virus. MATERIALS AND METHODS Ultra-performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry (UPLC/Q-TOF MS) was used to determine the chemical composition of TRQ. Isobaric tags for relative and absolute quantification (iTRAQ) were used to define differential proteins related to TRQ inhibition of viruses. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis were performed for functional annotation. For experimental validation, we established an in vitro model of the influenza virus infection by infecting A549 cells with the virus. The detection of the signaling pathway was carried out through qPCR, western blotting,and immunofluorescence. RESULTS Fifty one components were identified using UPLC/Q-TOF MS. We confirmed the inhibitory effect of TRQ on influenza virus replication in vitro. Ninety nine differentially expressed proteins related to the inhibitory effect of TRQ were identified using iTRAQ. KEGG functional enrichment analysis showed that the TRQ may inhibit influenza virus replication by affecting autophagy. Through network analysis, 29 targets were selected as major targets, and three key targets, HSPA5, PARP1, and GAPDH, may be the TRQ targets affecting autophagy. In vitro experiments showed that TRQ inhibits influenza virus replication by interfering with the expression and localization of STX17 and VAMP8 proteins, thereby promoting the fusion of autophagosomes with lysosomes. CONCLUSION TRQ inhibits influenza virus replication by promoting the fusion of autophagosomes with lysosomes. We additionally established potential gene and protein targets which are affected by TRQ. Therefore, our findings provide new therapeutic targets and a foundation further studies on influenza treatment with TRQ.
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Affiliation(s)
- Rui Guo
- Beijing University of Chinese Medicine, Beijing, PR China; Union Stem Cell & Gene Engineering Co., Ltd, Tianjin, PR China
| | - Hui Liu
- Beijing University of Chinese Medicine, Beijing, PR China
| | - Rina Su
- Beijing University of Chinese Medicine, Beijing, PR China
| | - Qin Mao
- Beijing University of Chinese Medicine, Beijing, PR China
| | - Mengfan Zhao
- Beijing University of Chinese Medicine, Beijing, PR China
| | - Haili Zhang
- Beijing University of Chinese Medicine, Beijing, PR China
| | - Jingwei Mu
- Shanghai Kaibao Pharmaceutical CO., LTD, Shanghai, PR China
| | - Ningbo Zhao
- Shanghai Kaibao Pharmaceutical CO., LTD, Shanghai, PR China
| | - Yi Wang
- Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing, PR China.
| | - Yu Hao
- Beijing University of Chinese Medicine, Beijing, PR China.
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2
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Zhang X, Yang Z, Fu C, Yao R, Li H, Peng F, Li N. Emerging roles of liquid-liquid phase separation in liver innate immunity. Cell Commun Signal 2024; 22:430. [PMID: 39227829 PMCID: PMC11373118 DOI: 10.1186/s12964-024-01787-4] [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: 05/23/2024] [Accepted: 08/11/2024] [Indexed: 09/05/2024] Open
Abstract
Biomolecular condensates formed by liquid-liquid phase separation (LLPS) have become an extensive mechanism of macromolecular metabolism and biochemical reactions in cells. Large molecules like proteins and nucleic acids will spontaneously aggregate and assemble into droplet-like structures driven by LLPS when the physical and chemical properties of cells are altered. LLPS provides a mature molecular platform for innate immune response, which tightly regulates key signaling in liver immune response spatially and physically, including DNA and RNA sensing pathways, inflammasome activation, and autophagy. Take this, LLPS plays a promoting or protecting role in a range of liver diseases, such as viral hepatitis, non-alcoholic fatty liver disease, liver fibrosis, hepatic ischemia-reperfusion injury, autoimmune liver disease, and liver cancer. This review systematically describes the whole landscape of LLPS in liver innate immunity. It will help us to guide a better-personalized approach to LLPS-targeted immunotherapy for liver diseases.
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Affiliation(s)
- Xinying Zhang
- Department of Blood Transfusion, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, China
- NHC Key Laboratory of Cancer Proteomics, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, China
- Clinical Laboratory, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, 87 Xiangya Road, Hunan Province, China
| | - Ziyue Yang
- Department of Blood Transfusion, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, China
- NHC Key Laboratory of Cancer Proteomics, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, China
| | - Chunmeng Fu
- Department of Blood Transfusion, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, China
- NHC Key Laboratory of Cancer Proteomics, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, China
| | - Run Yao
- Department of Blood Transfusion, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, China
- Clinical Laboratory, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, China
| | - Huan Li
- Department of Blood Transfusion, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, China
- Clinical Laboratory, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, China
| | - Fang Peng
- Department of Blood Transfusion, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, China.
- NHC Key Laboratory of Cancer Proteomics, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, China.
| | - Ning Li
- Department of Blood Transfusion, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, China.
- Clinical Laboratory, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan Province, 410008, China.
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3
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Lv C, Li R, Yang D, Song S, Cheng X, Chen T, Chen L, Xiong Y. Broad-spectrum antiviral effect of MoringaA-loaded exosomes against IAV by mediating the GCN5-TFEB-autolysosome pathway. J Med Virol 2024; 96:e29906. [PMID: 39262090 DOI: 10.1002/jmv.29906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2024] [Revised: 08/02/2024] [Accepted: 08/23/2024] [Indexed: 09/13/2024]
Abstract
Influenza virus-induced viral pneumonia is a major threat to human health, and specific therapeutic agents for viral pneumonia are still lacking. MoringaA (MA) is an anti-influenza virus active compound isolated from Moringa seeds, which can inhibit influenza virus by activating the TFEB-autophagic lysosomal pathway in host cells. In this study, we obtained exosomes from M2-type macrophages and encapsulated and delivered MA (MA-Exos), and we investigated the efficacy of MA-Exos in antiviral and viral pneumonia in vivo and in vitro, respectively. In addition, we provided insights into the mechanism by which MA-Exos regulates TFEB-lysosomal autophagy by RNA sequencing. The MA-Exos showed broad-spectrum inhibition of IAV, and significant promotion of the autophagic lysosomal pathway. Meanwhile, we found that GCN5 gene and protein were significantly down-regulated in IAV-infected cells after MA-Exos intervention, indicating its blocking the acetylation of TFEB by GCN5. In addition, MA-Exos also significantly promoted autophagy in lung tissue cells of mice with viral pneumonia. MA-Exos can inhibit and clear influenza virus by mediating the TFEB-autophagy lysosomal pathway by a mechanism related to the down-regulation of histone acetyltransferase GCN5. Our study provides a strategy for targeting MA-Exos for the treatment of viral pneumonia from both antiviral and virus-induced inflammation inhibition pathways.
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Affiliation(s)
- Chunmei Lv
- Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China
| | - Ruidong Li
- Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China
| | - Dandan Yang
- Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China
| | - Shunqiang Song
- Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China
| | - Xu Cheng
- Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China
| | - Tingting Chen
- Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China
| | - Lei Chen
- Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China
| | - Yongai Xiong
- Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China
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4
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Wu N, Zheng W, Zhou Y, Tian Y, Tang M, Feng X, Ashrafizadeh M, Wang Y, Niu X, Tambuwala M, Wang L, Tergaonkar V, Sethi G, Klionsky D, Huang L, Gu M. Autophagy in aging-related diseases and cancer: Principles, regulatory mechanisms and therapeutic potential. Ageing Res Rev 2024; 100:102428. [PMID: 39038742 DOI: 10.1016/j.arr.2024.102428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2024] [Revised: 07/05/2024] [Accepted: 07/15/2024] [Indexed: 07/24/2024]
Abstract
Macroautophagy/autophagy is primarily accountable for the degradation of damaged organelles and toxic macromolecules in the cells. Regarding the essential function of autophagy for preserving cellular homeostasis, changes in, or dysfunction of, autophagy flux can lead to disease development. In the current paper, the complicated function of autophagy in aging-associated pathologies and cancer is evaluated, highlighting the underlying molecular mechanisms that can affect longevity and disease pathogenesis. As a natural biological process, a reduction in autophagy is observed with aging, resulting in an accumulation of cell damage and the development of different diseases, including neurological disorders, cardiovascular diseases, and cancer. The MTOR, AMPK, and ATG proteins demonstrate changes during aging, and they are promising therapeutic targets. Insulin/IGF1, TOR, PKA, AKT/PKB, caloric restriction and mitochondrial respiration are vital for lifespan regulation and can modulate or have an interaction with autophagy. The specific types of autophagy, such as mitophagy that degrades mitochondria, can regulate aging by affecting these organelles and eliminating those mitochondria with genomic mutations. Autophagy and its specific types contribute to the regulation of carcinogenesis and they are able to dually enhance or decrease cancer progression. Cancer hallmarks, including proliferation, metastasis, therapy resistance and immune reactions, are tightly regulated by autophagy, supporting the conclusion that autophagy is a promising target in cancer therapy.
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Affiliation(s)
- Na Wu
- Department of Infectious Diseases, The First Hospital of China Medical University, Shenyang, Liaoning 110001, China
| | - Wenhui Zheng
- Department of Anesthesiology, The Shengjing Hospital of China Medical University, Shenyang, Liaoning 110001, China
| | - Yundong Zhou
- Department of Thoracic Surgery, Ningbo Medical Center Lihuili Hospital, Ningbo University, Ningbo, Zhejiang 315040, China
| | - Yu Tian
- School of Public Health, Benedictine University, No.5700 College Road, Lisle, IL 60532, USA; Research Center, the Huizhou Central People's Hospital, Guangdong Medical University, Huizhou, Guangdong, China
| | - Min Tang
- Department of Oncology, Chongqing General Hospital, Chongqing University, Chongqing 401120, China
| | - Xiaoqiang Feng
- Center of Stem Cell and Regenerative Medicine, Gaozhou People's Hospital, Gaozhou, Guangdong 525200, China
| | - Milad Ashrafizadeh
- Department of Radiation Oncology, Shandong Provincial Key Laboratory of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University, Shandong Academy of Medical Sciences, Jinan, Shandong 250000, China; Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Yuzhuo Wang
- Department of Urologic Sciences and Vancouver Prostate Centre, University of British Columbia, Vancouver, BC V6H3Z6, Canada
| | - Xiaojia Niu
- Department of Urologic Sciences and Vancouver Prostate Centre, University of British Columbia, Vancouver, BC V6H3Z6, Canada
| | - Murtaza Tambuwala
- Lincoln Medical School, University of Lincoln, Brayford Pool Campus, Lincoln LN6 7TS, UK
| | - Lingzhi Wang
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, 16 Medical Drive, Singapore 117600, Singapore
| | - Vinay Tergaonkar
- Laboratory of NF-κB Signalling, Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A⁎STAR), 61 Biopolis Drive, Proteos, Singapore 138673, Singapore
| | - Gautam Sethi
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, 16 Medical Drive, Singapore 117600, Singapore; NUS Centre for Cancer Research (N2CR), Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117599, Singapore.
| | - Daniel Klionsky
- Life Sciences Institute and Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, MI, USA.
| | - Li Huang
- Center of Stem Cell and Regenerative Medicine, Gaozhou People's Hospital, Gaozhou, Guangdong 525200, China.
| | - Ming Gu
- Department of Breast Surgery, The First Hospital of China Medical University, Shenyang, Liaoning 110001, China.
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5
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Huang Q, Liu L, Tan X, Wang S, Wang S, Luo J, Chen J, Yang N, Jiang J, Liu Y, Hong X, Guo S, Shen Y, Gao F, Feng H, Zhang J, Shen Q, Li C, Ji L. Empagliflozin alleviates neuroinflammation by inhibiting astrocyte activation in the brain and regulating gut microbiota of high-fat diet mice. J Affect Disord 2024; 360:229-241. [PMID: 38823591 DOI: 10.1016/j.jad.2024.05.150] [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: 01/24/2024] [Revised: 04/26/2024] [Accepted: 05/27/2024] [Indexed: 06/03/2024]
Abstract
A high-fat diet can modify the composition of gut microbiota, resulting in dysbiosis. Changes in gut microbiota composition can lead to increased permeability of the gut barrier, allowing bacterial products like lipopolysaccharides (LPS) to enter circulation. This process can initiate systemic inflammation and contribute to neuroinflammation. Empagliflozin (EF), an SGLT2 inhibitor-type hypoglycemic drug, has been reported to treat neuroinflammation. However, there is a lack of evidence showing that EF regulates the gut microbiota axis to control neuroinflammation in HFD models. In this study, we explored whether EF could improve neuroinflammation caused by an HFD via regulation of the gut microbiota and the mechanism underlying this phenomenon. Our data revealed that EF alleviates pathological brain injury, reduces the reactive proliferation of astrocytes, and increases the expression of synaptophysin. In addition, the levels of inflammatory factors in hippocampal tissue were significantly decreased after EF intervention. Subsequently, the results of 16S rRNA gene sequencing showed that EF could change the microbial community structure of mice, indicating that the abundance of Lactococcus, Ligilactobacillus and other microbial populations decreased dramatically. Therefore, EF alleviates neuroinflammation by inhibiting gut microbiota-mediated astrocyte activation in the brains of high-fat diet-fed mice. Our study focused on the gut-brain axis, and broader research on neuroinflammation can provide a more holistic understanding of the mechanisms driving neurodegenerative diseases and inform the development of effective strategies to mitigate their impact on brain health. The results provide strong evidence supporting the larger clinical application of EF.
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Affiliation(s)
- Qiaoyan Huang
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Liu Liu
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Xiaoyao Tan
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Shitong Wang
- Collaborative Innovation Center of Seafood Deep Processing, Zhejiang Province Joint Key Laboratory of Aquatic Products Processing, Institute of Seafood, Zhejiang Gongshang University, Hangzhou, China
| | - Sichen Wang
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Jun Luo
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Jiayi Chen
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Na Yang
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Jiajun Jiang
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Yiming Liu
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Xiao Hong
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Shunyuan Guo
- Center for Rehabilitation Medicine, Department of Neurology, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou 314408, China
| | - Yuejian Shen
- Hangzhou Linping Hospital of Traditional Chinese Medicine, Linping 311106, China
| | - Feng Gao
- Hangzhou Linping Hospital of Traditional Chinese Medicine, Linping 311106, China
| | - Huina Feng
- Hangzhou Linping Hospital of Traditional Chinese Medicine, Linping 311106, China
| | - Jianliang Zhang
- Hangzhou Linping Hospital of Traditional Chinese Medicine, Linping 311106, China
| | - Qing Shen
- Collaborative Innovation Center of Seafood Deep Processing, Zhejiang Province Joint Key Laboratory of Aquatic Products Processing, Institute of Seafood, Zhejiang Gongshang University, Hangzhou, China.
| | - Changyu Li
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China; Academy of Chinese Medical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China.
| | - Liting Ji
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China.
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6
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Wang JQ, Li Q, He JY, Zhou F, Huang ZH, Wang LB, Zhang Y, Li X. Autophagy in Multiple Sclerosis: Phagocytosis and Autophagy of Oligodendrocyte Precursor Cells. Mol Neurobiol 2024; 61:6920-6933. [PMID: 38363533 DOI: 10.1007/s12035-024-03996-x] [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: 07/03/2023] [Accepted: 01/29/2024] [Indexed: 02/17/2024]
Abstract
Multiple sclerosis (MS) is a leading cause of chronic neurological dysfunction in young to middle-aged adults, affecting approximately 2.5 million people worldwide. It is characterized by inflammation, multifocal demyelination, axonal loss, and white and gray matter gliosis. Autophagy is a highly conserved protein degradation pathway. Polymorphisms in autophagy-related genes have been implicated in a variety of autoimmune diseases, including systemic lupus erythematosus, rheumatoid arthritis, psoriasis and MS. However, the significance of autophagy in MS remains to be elucidated. This paper aims to explore the potential role of autophagy-related genes in MS diseases by using bioinformatics combined with machine learning methods. Finally, we obtained 9 autophagy genes with the highest correlation with MS, and further changes in these autophagy genes were verified in the experimental autoimmune encephalomyelitis (EAE) model and oligodendrocyte precursor cells (OPCs) engulfed myelin debris (MD). Combined with bioinformatic analysis and experimental data, Becn1 showed obvious expression abnormalities suggesting that this gene has vital functions in autophagy and MD engulfed by OPCs. This work will be of great significance for the further exploration of autophagy-related genes in demyelinating diseases.
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Affiliation(s)
- Jia-Qi Wang
- National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry (Shaanxi Normal University), The Ministry of Education, College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Qiang Li
- College of Urban and Environmental Sciences, Northwest University, Xi'an, China
| | - Jia-Yi He
- National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry (Shaanxi Normal University), The Ministry of Education, College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Fang Zhou
- National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry (Shaanxi Normal University), The Ministry of Education, College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Zi-Hao Huang
- National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry (Shaanxi Normal University), The Ministry of Education, College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Li-Bin Wang
- The Nervous System Disease Diagnosis and Treatment Engineering Technology Research Center of Ningxia, Yinchuan, 750001, China
| | - Yuan Zhang
- National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry (Shaanxi Normal University), The Ministry of Education, College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Xing Li
- National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry (Shaanxi Normal University), The Ministry of Education, College of Life Sciences, Shaanxi Normal University, Xi'an, China.
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7
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Negi M, Kaushik N, Lamichhane P, Patel P, Jaiswal A, Choi EH, Kaushik NK. Nitric oxide water-driven immunogenic cell death: Unfolding mitochondrial dysfunction's role in sensitizing lung adenocarcinoma to ferroptosis and autophagic cell death. Free Radic Biol Med 2024; 222:1-15. [PMID: 38763209 DOI: 10.1016/j.freeradbiomed.2024.05.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 05/14/2024] [Accepted: 05/17/2024] [Indexed: 05/21/2024]
Abstract
Non-small cell lung cancer (NSCLC), particularly lung adenocarcinoma (LUAD), significantly influences cancer-related mortality and is frequently considered by poor therapeutic responses due to genetic alterations. Cancer cells possess an inclination to develop resistance to individual treatment modalities, thus it is necessary to investigate several pathways simultaneously to obtain insights that will aid in the establishment of improved therapeutic approaches. Exploring regulated cell death (RCD) mechanisms offers promising avenues to augment immunotherapy by reshaping the tumor microenvironment (TME). Here, we investigated the prospective of microwave plasma-infused nitric oxide water (NOW) to initiate immunogenic cell death (ICD) while concurrently modulating autophagy and ferroptosis signaling in LUAD-associated A549 cells. Plasma treatment results in stable NO species nitrite/nitrate (NO2-/NO3-) in the water, altering its physicochemical properties. Analysis of ICD markers reveals increased expression of damage-associated molecular patterns (DAMPs) at both protein and mRNA levels post-NOW exposure. Intracellular reactive oxygen and nitrogen species (RONS) accumulation suggests NO-mediated mitochondrial dysfunction, triggering autophagy induction. Flow cytometry and western blotting confirm alterations in autophagy regulators Beclin 1 and SQSTM1. Furthermore, NOW treatment induces lipid peroxidation and upregulates ferroptosis-associated genes, as determined by qRT-PCR. Transmission electron microscopy (TEM) imaging reveals autophagosome formation and loss of cristae structures, corroborating the occurrence of autophagy and ferroptosis. Our findings propose that NOW may considered as inducer of ICD and the stimulation of other RCD-related proteins may enhance the anti-tumor immunogenicity.
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Affiliation(s)
- Manorma Negi
- Plasma Bioscience Research Center, Department of Electrical and Biological Physics, Kwangwoon University, Seoul, 01897, South Korea
| | - Neha Kaushik
- Department of Biotechnology, College of Engineering, The University of Suwon, Hwaseong, 18323, South Korea
| | - Prajwal Lamichhane
- Plasma Bioscience Research Center, Department of Electrical and Biological Physics, Kwangwoon University, Seoul, 01897, South Korea
| | - Paritosh Patel
- Plasma Bioscience Research Center, Department of Electrical and Biological Physics, Kwangwoon University, Seoul, 01897, South Korea
| | - Apurva Jaiswal
- Plasma Bioscience Research Center, Department of Electrical and Biological Physics, Kwangwoon University, Seoul, 01897, South Korea
| | - Eun Ha Choi
- Plasma Bioscience Research Center, Department of Electrical and Biological Physics, Kwangwoon University, Seoul, 01897, South Korea.
| | - Nagendra Kumar Kaushik
- Plasma Bioscience Research Center, Department of Electrical and Biological Physics, Kwangwoon University, Seoul, 01897, South Korea.
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8
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He X, Yao D, Yuan X, Ban J, Gou Y, You M. Occupational agents-mediated asthma: From the perspective of autophagy. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 952:175880. [PMID: 39216756 DOI: 10.1016/j.scitotenv.2024.175880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2024] [Revised: 08/25/2024] [Accepted: 08/28/2024] [Indexed: 09/04/2024]
Abstract
Occupational asthma (OA) is a common occupational pulmonary disease that is frequently underdiagnosed and underreported. The complexity of diagnosing and treating OA creates a significant social and economic burden, making it an important public health issue. In addition to avoiding allergens, patients with OA require pharmacotherapy; however, new therapeutic targets and strategies need further investigation. Autophagy may be a promising intervention target, but there is a lack of relevant studies summarizing the role of autophagy in OA. In this review consolidates the current understanding of OA, detailing principal and novel agents responsible for its onset. Additionally, we summarize the mechanisms of autophagy in HMW and LMW agents induced OA, revealing that occupational allergens can induce autophagy disorders in lung epithelial cells, smooth muscle cells, and dendritic cells, ultimately leading to OA through involving inflammatory responses, oxidative stress, and cell death. Finally, we discuss the prospects of targeting autophagy as an effective strategy for managing OA and even steroid-resistant asthma, encompassing autophagy interventions focused on organoids, organ-on-a-chip systems, nanomaterials vehicle, and nanobubbles; developing combined exposure models, and the role of non-classical autophagy in occupational asthma. In briefly, this review summarizes the role of autophagy in occupational asthma, offers a theoretical foundation for OA interventions based on autophagy, and identifies directions and challenges for future research.
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Affiliation(s)
- Xiu He
- School of Public Health, Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang 561113, China; Collaborative Innovation Center for Prevention and Control of Endemic and Ethnic Regional Diseases Co-constructed by the Province and Ministry, Guizhou Medical University, Guiyang 561113, China
| | - Dengxiang Yao
- School of Public Health, Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang 561113, China
| | - Xiaoli Yuan
- School of Public Health, Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang 561113, China
| | - Jiaqi Ban
- School of Public Health, Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang 561113, China
| | - Yuxuan Gou
- School of Public Health, Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang 561113, China; Clinical Medical School, Guizhou Medical University, Guiyang 561113, China
| | - Mingdan You
- School of Public Health, Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang 561113, China; Collaborative Innovation Center for Prevention and Control of Endemic and Ethnic Regional Diseases Co-constructed by the Province and Ministry, Guizhou Medical University, Guiyang 561113, China.
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9
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Ward C, Schlichtholz B. Post-Acute Sequelae and Mitochondrial Aberration in SARS-CoV-2 Infection. Int J Mol Sci 2024; 25:9050. [PMID: 39201736 PMCID: PMC11354507 DOI: 10.3390/ijms25169050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2024] [Revised: 07/29/2024] [Accepted: 08/16/2024] [Indexed: 09/03/2024] Open
Abstract
This review investigates links between post-acute sequelae of SARS-CoV-2 infection (PASC), post-infection viral persistence, mitochondrial involvement and aberrant innate immune response and cellular metabolism during SARS-CoV-2 infection. Advancement of proteomic and metabolomic studies now allows deeper investigation of alterations to cellular metabolism, autophagic processes and mitochondrial dysfunction caused by SARS-CoV-2 infection, while computational biology and machine learning have advanced methodologies of predicting virus-host gene and protein interactions. Particular focus is given to the interaction between viral genes and proteins with mitochondrial function and that of the innate immune system. Finally, the authors hypothesise that viral persistence may be a function of mitochondrial involvement in the sequestration of viral genetic material. While further work is necessary to understand the mechanisms definitively, a number of studies now point to the resolution of questions regarding the pathogenesis of PASC.
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Affiliation(s)
| | - Beata Schlichtholz
- Department of Biochemistry, Gdańsk University of Medicine, 80-210 Gdańsk, Poland;
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10
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Zhao W, Shen T, Zhao B, Li M, Deng Z, Huo Y, Aernouts B, Loor JJ, Psifidi A, Xu C. Epigallocatechin-3-gallate protects bovine ruminal epithelial cells against lipopolysaccharide-induced inflammatory damage by activating autophagy. J Anim Sci Biotechnol 2024; 15:109. [PMID: 39118120 PMCID: PMC11311925 DOI: 10.1186/s40104-024-01066-9] [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: 04/20/2024] [Accepted: 06/19/2024] [Indexed: 08/10/2024] Open
Abstract
BACKGROUND Subacute ruminal acidosis (SARA) causes an increase in endotoxin, which can induce immune and inflammatory responses in the ruminal epithelium of dairy cows. In non-ruminants, epigallocatechin-3-gallate (EGCG), a major bioactive ingredient of green tea, is well-known to alleviate inflammation. Whether EGCG confers protection against SARA-induced inflammation and the underlying mechanisms are unknown. RESULTS In vivo, eight ruminally cannulated Holstein cows in mid-lactation were randomly assigned to either a low-concentrate (40%) diet (CON) or a high-concentrate (60%) diet (HC) for 3 weeks to induce SARA (n = 4). Cows with SARA had greater serum concentrations of tumor necrosis factor (TNF)-α and interleukin-6, and epithelium had histological signs of damage. In vitro, immortalized bovine ruminal epithelial cells (BREC) were treated with lipopolysaccharide (LPS) to imitate the inflammatory damage caused by SARA. Our data revealed that BREC treated with 10 µg/mL LPS for 6 h successfully induce a robust inflammatory response as indicated by increased phosphorylation of IκBα and nuclear factor kappa-B (NF-κB) p65. Pre-treatment of BREC with 50 µmol/L EGCG for 6 h before LPS challenge promoted the degradation of NLR family pyrin domain containing 3 (NLRP3) inflammasome through activation of autophagy, which further repressed activation of NF-κB pathway targeting Toll-like receptor 4 (TLR4). Analyses also revealed that the ECGG upregulated tight junction (TJ) protein expression upon incubation with LPS. CONCLUSIONS Subacute ruminal acidosis causes ruminal epithelium injury and systemic inflammation in dairy cows. However, the anti-inflammatory effects of EGCG help preserve the integrity of the epithelial barrier through activating autophagy when BREC are exposed to LPS. Thus, EGCG could potentially serve as an effective therapeutic agent for SARA-associated inflammation.
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Affiliation(s)
- Wanli Zhao
- National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, 2 Yuanmingyuan West Road, Beijing, 100193, China
| | - Taiyu Shen
- National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, 2 Yuanmingyuan West Road, Beijing, 100193, China
| | - Bichen Zhao
- National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, 2 Yuanmingyuan West Road, Beijing, 100193, China
| | - Moli Li
- National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, 2 Yuanmingyuan West Road, Beijing, 100193, China
| | - Zhaoju Deng
- National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, 2 Yuanmingyuan West Road, Beijing, 100193, China
| | - Yihui Huo
- National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, 2 Yuanmingyuan West Road, Beijing, 100193, China
| | - Ben Aernouts
- Department of Biosystems, Division of Animal and Human Health Engineering, KU Leuven University, Kleinhoefstraat 4, Geel, 2440, Belgium
| | - Juan J Loor
- Department of Animal Sciences, Division of Nutritional Sciences, University of Illinois, Urbana-Champaign, Urbana, IL, 61801, USA
| | - Androniki Psifidi
- Department of Clinical Science and Services, Queen Mother Hospital for Animals, The Royal Veterinary College, North Mymms, Hawkshead Lane, Hatfield, Hertfordshire, AL9 7TA, UK
| | - Chuang Xu
- National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, 2 Yuanmingyuan West Road, Beijing, 100193, China.
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11
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Zhao C, Changhong Lin, Zhang B, Wang P, Zhang B, Yan L, Wang C, Qiu L. Study on the mechanism of miR-7562 regulating ATG5 and ATG12 genes in Penaeus monodon under Vibrio harveyi infection. FISH & SHELLFISH IMMUNOLOGY 2024; 151:109670. [PMID: 38838838 DOI: 10.1016/j.fsi.2024.109670] [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: 02/19/2024] [Revised: 06/01/2024] [Accepted: 06/02/2024] [Indexed: 06/07/2024]
Abstract
MicroRNAs (miRNAs) play a fundamental role in the post-transcriptional regulation of genes and are pivotal in modulating immune responses in marine species, particularly during pathogen assaults. This study focused on the function of miR-7562 and its regulatory effects on autophagy against Vibrio harveyi infection in the black tiger shrimp (Penaeus monodon), an economically important aquatic species. We successfully cloned and characterized two essential autophagy-related genes (ATGs) from P. monodon, PmATG5 and PmATG12, and then identified the miRNAs potentially involved in co-regulating these genes, which were notably miR-7562, miR-8485, and miR-278. Subsequent bacterial challenge experiments and dual-luciferase reporter assays identified miR-7562 as the principal regulator of both genes, particularly by targeting the 3'UTR of each gene. By manipulating the in vivo levels of miR-7562 using mimics and antagomirs, we found significant differences in the expression of PmATG5 and PmATG12, which corresponded to alterations in autophagic activity. Notably, miR-7562 overexpression resulted in the downregulation of PmATG5 and PmATG12, leading to a subdued autophagic response. Conversely, miR-7562 knockdown elevated the expression levels of these genes, thereby enhancing autophagic activity. Our findings further revealed that during V. harveyi infection, miR-7562 continued to influence the autophagic pathway by specifically targeting the ATG5-ATG12 complex. This research not only sheds light on the miRNA-dependent mechanisms governing autophagic immunity in shrimp but also proposes miR-7562 as a promising target for therapeutic strategies intended to strengthen disease resistance within the crustacean aquaculture industry.
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Affiliation(s)
- Chao Zhao
- Key Laboratory of Applied Marine Biotechnology, Ningbo University, Chinese Ministry of Education, Ningbo, PR China; South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, PR China; Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, Guangzhou, PR China; Sanya Tropical Fisheries Research Institute, Sanya, PR China
| | - Changhong Lin
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, PR China; College of Aqua-life Science and Technology, Shanghai Ocean University, Shanghai, PR China
| | - Bo Zhang
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, PR China; Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, Guangzhou, PR China.
| | - Pengfei Wang
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, PR China; Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, Guangzhou, PR China; Sanya Tropical Fisheries Research Institute, Sanya, PR China
| | - Bo Zhang
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, PR China; Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, Guangzhou, PR China.
| | - Lulu Yan
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, PR China; Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, Guangzhou, PR China
| | - Chunlin Wang
- Key Laboratory of Applied Marine Biotechnology, Ningbo University, Chinese Ministry of Education, Ningbo, PR China
| | - Lihua Qiu
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, PR China; Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, Guangzhou, PR China; Sanya Tropical Fisheries Research Institute, Sanya, PR China.
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12
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Rezaie N, Ashrafian F, Shidvash F, Aghamohammad S, Rohani M. The effect of novel paraprobiotic cocktail on dextran sodium sulfate induced acute colitis control focusing on autophagy signaling pathway. Eur J Nutr 2024; 63:1797-1805. [PMID: 38592518 DOI: 10.1007/s00394-024-03376-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 03/19/2024] [Indexed: 04/10/2024]
Abstract
PURPOSE Paraprobiotics are a non-viable form of probiotics that are reported to provide significant health benefits. Nevertheless, little is known about the beneficial effects of paraprobiotics on inflammatory bowel disease. Although probiotics show potential as therapeutic agents for a range of diseases, including inflammatory bowel disease (IBD), there are certain risks associated with their use. These risks include toxin production, hemolytic potential, antibiotic resistance, and the need to analyze metabolic activities. Hence Using paraprobiotic with the lower aforementioned risk would therefore be the preferable option. Here, we conducted an in vivo study to evaluate the preventive effect of our native paraprobiotic cocktail against dextran sulfate sodium (DSS)-induced murine colitis by affecting the autophagy signaling pathway. METHODS Four-week-old male C57Bl/6 mice were randomly divided into three groups after a two-week acclimation period with normal standard laboratory food diet. Mice were administered PBS (PBS group as control), PBS along with DSS (DSS group, as a control), and a cocktail of paraprobiotics along with DSS (Para group). The severity of colitis, length and histopathology of the colon were evaluated. In addition, the expression of autophagy was assessed using real-time PCR. RESULTS The results showed that administration of the paraprobiotic cocktail to DSS-treated mice inhibited the severity of colitis symptoms, as evidenced by the inhibition of weight loss and DAI, as well as histopathological scores in the study colon, as well as shortening of colon length caused by DSS. In contrast to the DSS group, the cocktail was able to modulate inflammation through upregulation of autophagy-related genes (becline 1, atg5, atg7, atg12, and atg13). CONCLUSION Although there are some limitations in our investigation, such as the dosage and duration of treatments, our native paraprobiotic blend effectively prevented the advancement of colitis. This suggests that it plays a vital role in regulating inflammation and preventing colitis by promoting the autophagy mechanism in cases where the consumption of probiotics may have negative consequences.
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Affiliation(s)
- Niloofar Rezaie
- Department of Bacteriology, Pasteur Institute of Iran, Tehran, Iran
| | - Fatemeh Ashrafian
- Clinical Research Department, Pasteur Institute of Iran, Tehran, Iran
| | - Fatemeh Shidvash
- Department of Microbiology, Science and Research Campus, Islamic Azad University, Tehran, Iran
| | | | - Mahdi Rohani
- Department of Bacteriology, Pasteur Institute of Iran, Tehran, Iran.
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13
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Qin Y, Li W, Liu J, Wang F, Zhou W, Xiao L, Zhou P, Wu F, Chen X, Xu S, Liu L, Xiao X, Zhang D. Andrographolide ameliorates sepsis-induced acute lung injury by promoting autophagy in alveolar macrophages via the RAGE/PI3K/AKT/mTOR pathway. Int Immunopharmacol 2024; 139:112719. [PMID: 39032470 DOI: 10.1016/j.intimp.2024.112719] [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: 03/21/2024] [Revised: 07/06/2024] [Accepted: 07/15/2024] [Indexed: 07/23/2024]
Abstract
Autophagy in alveolar macrophages (AMs) is an important mechanism for maintaining immune homeostasis and normal lung tissue function, and insufficient autophagy in AMs may mediate the development of sepsis-induced acute lung injury (SALI). Insufficient autophagy in AMs and the activation of the NLRP3 inflammasome were observed in a mouse model with SALI induced by cecal ligation and puncture (CLP), resulting in the release of a substantial quantity of proinflammatory factors and the formation of SALI. However, after andrographolide (AG) intervention, autophagy in AMs was significantly promoted, the activation of the NLRP3 inflammasome was inhibited, the release of proinflammatory factors and pyroptosis were suppressed, and SALI was then ameliorated. In the MH-S cell model stimulated with LPS, insufficient autophagy was discovered to promote the overactivation of the NLRP3 inflammasome. AG was found to significantly promote autophagy, inhibit the activation of the NLRP3 inflammasome, and attenuate the release of proinflammatory factors. The primary mechanism of AG promoting autophagy was to inhibit the activation of the PI3K/AKT/mTOR pathway by binding RAGE to the membrane. In addition, it inhibited the activation of the NLRP3 inflammasome to ameliorate SALI. Our findings suggest that AG promotes autophagy in AMs through the RAGE/PI3K/AKT/mTOR pathway to inhibit the activation of the NLRP3 inflammasome, remodel the functional homeostasis of AMs in SALI, and exert anti-inflammatory and lung-protective effects. It has also been the first to suggest that RAGE is likely a direct target through which AG regulates autophagy, providing theoretical support for a novel therapeutic strategy in sepsis.
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Affiliation(s)
- Yuping Qin
- Department of Emergency and Critical Care Medicine, The First Afliated Hospital of Chongqing Medical University, Chongqing 400016, PR China
| | - Wenjuan Li
- Department of Emergency and Critical Care Medicine, The First Afliated Hospital of Chongqing Medical University, Chongqing 400016, PR China
| | - Jinglun Liu
- Department of Emergency and Critical Care Medicine, The First Afliated Hospital of Chongqing Medical University, Chongqing 400016, PR China
| | - Fenglin Wang
- Department of Emergency and Critical Care Medicine, The First Afliated Hospital of Chongqing Medical University, Chongqing 400016, PR China
| | - Wushuang Zhou
- Department of Emergency and Critical Care Medicine, The First Afliated Hospital of Chongqing Medical University, Chongqing 400016, PR China
| | - Linlin Xiao
- Department of Emergency and Critical Care Medicine, The First Afliated Hospital of Chongqing Medical University, Chongqing 400016, PR China
| | - Pengfei Zhou
- Department of Emergency and Critical Care Medicine, The First Afliated Hospital of Chongqing Medical University, Chongqing 400016, PR China
| | - Fan Wu
- Department of Emergency and Critical Care Medicine, The First Afliated Hospital of Chongqing Medical University, Chongqing 400016, PR China
| | - Xiaoying Chen
- Department of Emergency and Critical Care Medicine, The First Afliated Hospital of Chongqing Medical University, Chongqing 400016, PR China
| | - Shan Xu
- Department of Emergency, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400016, PR China
| | - Lei Liu
- Key Laboratory of Molecular Oncology and Epigenetics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, PR China
| | - Xiaoqiu Xiao
- The Chongqing Key Laboratory of Translational Medicine in Major Metabolic Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, PR China
| | - Dan Zhang
- Department of Emergency and Critical Care Medicine, The First Afliated Hospital of Chongqing Medical University, Chongqing 400016, PR China.
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14
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Ling L, Chen J, Zhan L, Fu J, He R, Wang W, Wei B, Ma X, Cao Y. NLRC5 promotes tumorigenesis by regulating the PI3K/AKT signaling pathway in cervical cancer. Sci Rep 2024; 14:15353. [PMID: 38961101 PMCID: PMC11222428 DOI: 10.1038/s41598-024-66153-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 06/27/2024] [Indexed: 07/05/2024] Open
Abstract
Cervical cancer (CC) is the fourth most common cancer among women worldwide. NLR Family CARD Domain Containing 5 (NLRC5) plays an important role in tumorigenesis. However, its effect and mechanism in CC remains unclear. In this study, we aimed to investigate the function of NLRC5 in CC. NLRC5 was found to be down-regulated in CC tissues compared with normal cervical tissues. However, patients with higher NLRC5 expression had better prognosis, patients with higher age, HPV infection, lymph node metastasis, recurrence and histological grade had worse prognosis. Univariate and multivariate analyses showed NLRC5 to be a potential prognostic indicator for CC. Pearson correlation analysis showed that NLRC5 might exert its function in CC through autophagy related proteins, especially LC3. In vitro experiments demonstrated that NLRC5 inhibited LC3 levels and promoted the proliferation, migration, and invasion of CC cells by activating the PI3K/AKT signaling pathway. Treatment with LY294002 reversed the above phenotype. Taken together, our finding suggested that NLRC5 would participate in cervical tumorigenesis and progression by regulating PI3K/AKT signaling pathway. In addition, NLRC5 and LC3 combined as possible predictors in CC.
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Affiliation(s)
- Lin Ling
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, China
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, China
| | - Jiahua Chen
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, China
| | - Lei Zhan
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, China
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, China
| | - Juanjuan Fu
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, China
| | - Runhua He
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, China
| | - Wenyan Wang
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, China
| | - Bing Wei
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, China.
| | - Xiaofeng Ma
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, China.
| | - Yunxia Cao
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, China.
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15
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Ota N, Endo S, Honma K, Iwayama K, Yamashita H, Tatsunami R, Sato K. Chloroquine regulates the lipopolysaccharide-induced inflammatory response in RAW264.7 cells. Allergol Immunopathol (Madr) 2024; 52:97-103. [PMID: 38970272 DOI: 10.15586/aei.v52i4.1083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 04/29/2024] [Indexed: 07/08/2024]
Abstract
INTRODUCTION AND OBJECTIVES Macrophage-induced inflammation plays a key role in defense against injury and harmful pathogens. Autophagy and the inflammatory response are associated; however, the relationship between the autophagy pathway and lipopolysaccharide (LPS)- induced inflammatory responses remains unknown. We aimed to determine the effect of autophagy on the LPS-induced myeloid differentiation factor 88 (MyD88)/nuclear transcription factor kB (NF-kB) pathway-mediated inflammatory response in RAW264.7 cells. MATERIALS AND METHODS To determine the effect of autophagy on the LPS-induced inflammatory response, using various in vitro assays, we determined the effect of autophagy inhibitors and inducers on the inflammatory response in RAW264.7 cells. RESULTS Chloroquine (CQ), an autophagy inhibitor, suppressed pro-inflammatory cytokines, including interleukin (IL)-1β, IL-6, and tumor necrosis factor α (TNFα) in LPS-stimulated RAW264.7 cells. CQ also affected inflammatory mediators such as myeloid differentiation factor 88 and NF-kB in LPS-stimulated RAW264.7 cells. CONCLUSION This study demonstrated that CQ regulates the LPS-induced inflammatory response in RAW264.7 cells. We propose that targeting the regulation of pro-inflammatory cytokine levels and inflammatory mediators using CQ is a promising therapeutic approach for preventing inflammatory injury. CQ serves as a potential therapeutic target for treating various inflammatory diseases.
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Affiliation(s)
- Natsuki Ota
- Department of Pharmacy, Hokkaido University of Science, 0068585 Sapporo, Japan
| | - Shoya Endo
- Department of Pharmacy, Hokkaido University of Science, 0068585 Sapporo, Japan
| | - Kouki Honma
- Department of Pharmacy, Hokkaido University of Science, 0068585 Sapporo, Japan
| | - Kuninori Iwayama
- Department of Pharmacy, Hokkaido University of Science, 0068585 Sapporo, Japan
| | - Hiroshi Yamashita
- Department of Pharmacy, Hokkaido University of Science, 0068585 Sapporo, Japan
| | - Ryosuke Tatsunami
- Department of Pharmacy, Hokkaido University of Science, 0068585 Sapporo, Japan
| | - Keisuke Sato
- Department of Pharmacy, Hokkaido University of Science, 0068585 Sapporo, Japan;
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16
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Esrefoglu M. Harnessing autophagy: A potential breakthrough in digestive disease treatment. World J Gastroenterol 2024; 30:3036-3043. [PMID: 38983959 PMCID: PMC11230060 DOI: 10.3748/wjg.v30.i24.3036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 04/30/2024] [Accepted: 06/04/2024] [Indexed: 06/25/2024] Open
Abstract
Autophagy, a conserved cellular degradation process, is crucial for various cellular processes such as immune responses, inflammation, metabolic and oxidative stress adaptation, cell proliferation, development, and tissue repair and remodeling. Dysregulation of autophagy is suspected in numerous diseases, including cancer, neurodegenerative diseases, digestive disorders, metabolic syndromes, and infectious and inflammatory diseases. If autophagy is disrupted, for example, this can have serious consequences and lead to chronic inflammation and tissue damage, as occurs in diseases such as Chron's disease and ulcerative colitis. On the other hand, the influence of autophagy on the development and progression of cancer is not clear. Autophagy can both suppress and promote the progression and metastasis of cancer at various stages. From inflammatory bowel diseases to gastrointestinal cancer, researchers are discovering the intricate role of autophagy in maintaining gut health and its potential as a therapeutic target. Researchers should carefully consider the nature and progression of diseases such as cancer when trying to determine whether inhibiting or stimulating autophagy is likely to be beneficial. Multidisciplinary approaches that combine cutting-edge research with clinical expertise are key to unlocking the full therapeutic potential of autophagy in digestive diseases.
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Affiliation(s)
- Mukaddes Esrefoglu
- Department of Histology and Embryology, Bezmialem Vakif University Medical Faculty, Istanbul 34093, Türkiye
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17
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Ma RX. A detective story of intermittent fasting effect on immunity. Immunology 2024. [PMID: 38922825 DOI: 10.1111/imm.13829] [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: 02/03/2024] [Accepted: 06/13/2024] [Indexed: 06/28/2024] Open
Abstract
Intermittent fasting (IF) refers to periodic fasting routines, that caloric intake is minimized not by meal portion size reduction but by intermittently eliminating ingestion of one or several consecutive meals. IF can instigate comprehensive and multifaceted alterations in energy metabolism, these metabolic channels may aboundingly function as primordial mechanisms that interface with the immune system, instigating intricate immune transformations. This review delivers a comprehensive understanding of IF, paying particular attention to its influence on the immune system, thus seeking to bridge these two research domains. We explore how IF effects lipid metabolism, hormonal levels, circadian rhythm, autophagy, oxidative stress, gut microbiota, and intestinal barrier integrity, and conjecture about the mechanisms orchestrating the intersect between these factors and the immune system. Moreover, the review includes research findings on the implications of IF on the immune system and patients burdened with autoimmune diseases.
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Affiliation(s)
- Ru-Xue Ma
- School of Medical, Qinghai University, Xining, China
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18
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Hong C, Li X, Zhang K, Huang Q, Li B, Xin H, Hu B, Meng F, Zhu X, Tang D, Hu C, Tao C, Li J, Cao Y, Wang H, Deng B, Wang S. Novel perspectives on autophagy-oxidative stress-inflammation axis in the orchestration of adipogenesis. Front Endocrinol (Lausanne) 2024; 15:1404697. [PMID: 38982993 PMCID: PMC11232368 DOI: 10.3389/fendo.2024.1404697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Accepted: 05/30/2024] [Indexed: 07/11/2024] Open
Abstract
Adipose tissue, an indispensable organ, fulfils the pivotal role of energy storage and metabolism and is instrumental in maintaining the dynamic equilibrium of energy and health of the organism. Adipocyte hypertrophy and adipocyte hyperplasia (adipogenesis) are the two primary mechanisms of fat deposition. Mature adipocytes are obtained by differentiating mesenchymal stem cells into preadipocytes and redifferentiation. However, the mechanisms orchestrating adipogenesis remain unclear. Autophagy, an alternative cell death pathway that sustains intracellular energy homeostasis through the degradation of cellular components, is implicated in regulating adipogenesis. Furthermore, adipose tissue functions as an endocrine organ, producing various cytokines, and certain inflammatory factors, in turn, modulate autophagy and adipogenesis. Additionally, autophagy influences intracellular redox homeostasis by regulating reactive oxygen species, which play pivotal roles in adipogenesis. There is a growing interest in exploring the involvement of autophagy, inflammation, and oxidative stress in adipogenesis. The present manuscript reviews the impact of autophagy, oxidative stress, and inflammation on the regulation of adipogenesis and, for the first time, discusses their interactions during adipogenesis. An integrated analysis of the role of autophagy, inflammation and oxidative stress will contribute to elucidating the mechanisms of adipogenesis and expediting the exploration of molecular targets for treating obesity-related metabolic disorders.
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Affiliation(s)
- Chun Hong
- State Key Laboratory of Swine and Poultry Breeding Industry, Guangdong Key Laboratory of Animal Breeding and Nutrition, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Xinming Li
- State Key Laboratory of Swine and Poultry Breeding Industry, Guangdong Key Laboratory of Animal Breeding and Nutrition, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Kunli Zhang
- Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangdong Provincial Key Laboratory of Livestock Disease Prevention Guangdong Province, Scientific Observation and Experiment Station of Veterinary Drugs and Diagnostic Techniques of Guangdong Province, Ministry of Agriculture and Rural Affairs, Guangzhou, China
| | - Qiuyan Huang
- State Key Laboratory of Swine and Poultry Breeding Industry, Guangdong Key Laboratory of Animal Breeding and Nutrition, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, China
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Baohong Li
- State Key Laboratory of Swine and Poultry Breeding Industry, Guangdong Key Laboratory of Animal Breeding and Nutrition, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Haiyun Xin
- State Key Laboratory of Swine and Poultry Breeding Industry, Guangdong Key Laboratory of Animal Breeding and Nutrition, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Bin Hu
- State Key Laboratory of Swine and Poultry Breeding Industry, Guangdong Key Laboratory of Animal Breeding and Nutrition, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Fanming Meng
- State Key Laboratory of Swine and Poultry Breeding Industry, Guangdong Key Laboratory of Animal Breeding and Nutrition, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Xiangxing Zhu
- Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, School of Life Sciences and Engineering, Foshan University, Foshan, China
| | - Dongsheng Tang
- Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, School of Life Sciences and Engineering, Foshan University, Foshan, China
| | - Chuanhuo Hu
- College of Animal Science and Technology, Guangxi University, Nanning, China
- Guangxi Key Laboratory of Animal Reproduction, Breeding and Disease Control, Guangxi University, Nanning, China
| | - Chenyu Tao
- College of Animal Science and Technology, Hebei Agricultural University, Baoding, Hebei, China
| | - Jianhao Li
- State Key Laboratory of Swine and Poultry Breeding Industry, Guangdong Key Laboratory of Animal Breeding and Nutrition, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Yang Cao
- Branch of Animal Husbandry, Jilin Academy of Agricultural Science, Gongzhuling, China
| | - Hai Wang
- Chinese Academy of Sciences (CAS) Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health- Hong Kong University (GIBH-HKU) Guangdong-Hong Kong Stem Cell and Regenerative Medicine Research Centre, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Bo Deng
- Division of Nephrology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Sutian Wang
- State Key Laboratory of Swine and Poultry Breeding Industry, Guangdong Key Laboratory of Animal Breeding and Nutrition, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, China
- Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Maoming, China
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19
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Liu C, Li X, Imdad L, Xu S, Li J, Ren X. Mapping the current trends of autophagy in retinal diseases: A bibliometric analysis. Heliyon 2024; 10:e32050. [PMID: 38882284 PMCID: PMC11176856 DOI: 10.1016/j.heliyon.2024.e32050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 05/27/2024] [Accepted: 05/28/2024] [Indexed: 06/18/2024] Open
Abstract
Background Several scholarly publications have thoroughly examined the significant role of autophagy in the pathogenesis, progression, and treatment of retinal diseases. This research utilized bibliometric analysis to identify the primary areas of focus and emerging trends within the discipline and offer a comprehensive summary. Methods The research articles and reviews regarding autophagy and retinal diseases from 2009-01-01 to 2022-12-31 were from the Web of Science Core Collection (WOSCC). The software VOSviewer and CiteSpace were applied to analyze and visualize maps of countries, organizations, authors, journals, keyword networks, and citations in the field of autophagy in retinal diseases. Results 854 qualified records (721 articles and 133 reviews) were retrieved in this research. The annual publication output of literature shows a growing trend. China is the most productive country, and the author with the most publications is Kai Kaarniranta. Journal Autophagy published the most articles in this field. Keywords analysis can effectively reflect the research hot spots and indicate that diabetic retinopathy and glaucoma have drawn more attention recently. Researchers have shifted the research emphasis on "AMPK", "angiogenesis", "mutation", and "inflammation". Conclusions With the bibliometric analysis approach, we presented the number of publications, countries, regions, authors, institutions, keywords, and citations, which further helps researchers understand the hot spots and trends in the field of autophagy in retinal diseases and explore the issues in the rapidly developing area.
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Affiliation(s)
- Chengzhi Liu
- The First Affiliated Hospital of Dalian Medical University, Dalian, 116011, China
| | - Xiaonan Li
- The First Affiliated Hospital of Dalian Medical University, Dalian, 116011, China
| | - Laraib Imdad
- Department of Histology and Embryology, College of Basic Medicine, Dalian Medical University, Dalian, 116044, China
| | - Shengnan Xu
- Department of Histology and Embryology, College of Basic Medicine, Dalian Medical University, Dalian, 116044, China
| | - Jun Li
- The First Affiliated Hospital of Dalian Medical University, Dalian, 116011, China
| | - Xiang Ren
- Department of Histology and Embryology, College of Basic Medicine, Dalian Medical University, Dalian, 116044, China
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20
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Chen Y, Li K, Huang R, Xiong L, Li R, Jiang L, Xun Y, Wan W, Hu K. Proteomics identifies hypothermia induced adiponectin protects corneal endothelial cells via AMPK mediated autophagy in phacoemulsification. Graefes Arch Clin Exp Ophthalmol 2024:10.1007/s00417-024-06542-6. [PMID: 38850333 DOI: 10.1007/s00417-024-06542-6] [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: 10/26/2023] [Revised: 05/24/2024] [Accepted: 06/03/2024] [Indexed: 06/10/2024] Open
Abstract
AIM To explore the molecular mechanism underlying the protective effect of hypothermic perfusion on the corneal endothelium during phacoemulsification. METHODS Phacoemulsification was performed on New Zealand white rabbits. Perfusate at different temperatures was used during the operation, and the aqueous humor was collected for proteomic sequencing after the operation. Corneal endothelial cell injury was simulated by a corneal endothelial cell oxygen-glucose deprivation/reoxygenation (OGD/R) model in vitro. Flow cytometry and evaluation of fluorescent LC3B puncta were used to detect apoptosis and autophagy, and western blotting was used to detect protein expression. RESULTS A total of 381 differentially expressed proteins were identified between the two groups. In vitro, 4 ℃ hypothermia significantly reduced apoptosis and promoted autophagy. Apoptosis increased after autophagy was inhibited by 3-Methyladenine (3-MA). Furthermore, adiponectin (ADIPOQ) knockdown inhibited phospho-AMPK and blocked the protective effect of hypothermia on corneal endothelial cells. CONCLUSIONS We investigated the differential expression of proteins between the hypothermia group and normothermia group by proteomics. Moreover, hypothermia-induced ADIPOQ can reduce apoptosis by promoting AMPK-mediated autophagy.
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Affiliation(s)
- Yanyi Chen
- The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Lab of Ophthalmology, Chongqing Eye Institute, Chongqing, China
| | - Kewei Li
- The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Lab of Ophthalmology, Chongqing Eye Institute, Chongqing, China
| | - Rongxi Huang
- Department of Endocrinology, Chongqing General Hospital, Chongqing, China
| | - Liang Xiong
- The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Lab of Ophthalmology, Chongqing Eye Institute, Chongqing, China
| | - Ruonan Li
- The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Lab of Ophthalmology, Chongqing Eye Institute, Chongqing, China
| | - Lu Jiang
- The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Lab of Ophthalmology, Chongqing Eye Institute, Chongqing, China
| | - Yan Xun
- The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Lab of Ophthalmology, Chongqing Eye Institute, Chongqing, China
| | - Wenjuan Wan
- The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Lab of Ophthalmology, Chongqing Eye Institute, Chongqing, China.
| | - Ke Hu
- The First Affiliated Hospital of Chongqing Medical University, Chongqing Key Lab of Ophthalmology, Chongqing Eye Institute, Chongqing, China.
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21
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Su L, Guo P, Guo X, He Z, Zhao Y, Zong Y, Li J, Chen W, DU R. Paeoniflorin alleviates depression by inhibiting the activation of NLRP3 inflammasome via promoting mitochondrial autophagy. Chin J Nat Med 2024; 22:515-529. [PMID: 38906599 DOI: 10.1016/s1875-5364(24)60654-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Indexed: 06/23/2024]
Abstract
Depression ranks among the most common neuropsychiatric disorders globally. Current studies examining the roles of inflammation and mitochondrial autophagy in the antidepressant efficacy of paeoniflorin (PF) are sparse. This study aimed to elucidate PF's antidepressant mechanism by promoting autophagy and inhibiting NLRP3 inflammasome activation using chronic unpredictable mild stimulation (CUMS)-induced C57BL/6 mouse models in vivo and corticosterone (CORT)-induced HT22 cell models in vitro. Results demonstrated that PF enhanced the viability of HT22 cells following CORT exposure, restored mitochondrial membrane potential (MMP), reduced reactive oxygen species accumulation, increased LC3 fluorescence intensity, and suppressed inflammatory cytokine secretion and inflammation activation. Additionally, PF ameliorated depressive behaviors induced by CUMS and improved damage in hippocampal neurons. It also reduced the expression of NLRP3, ASC, Caspase-1, IL-1β, and the assembly of the NLRP3 inflammasome. Moreover, PF upregulated the expression of autophagy-related proteins in the hippocampus, facilitating the clearance of damaged mitochondria and enhancing autophagy. The role of autophagy in PF's antidepressant effects was further confirmed through the use of the autophagy inhibitor 3-methyladenine (3-MA), which reduced the efficacy of PF. In conclusion, PF effectively improved depressive behaviors in CUMS-induced mice and reduced NLRP3-mediated inflammation both in vivo and in vitro, likely via the induction of autophagy.
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Affiliation(s)
- Lili Su
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China.
| | - Pengli Guo
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
| | - Xiangjuan Guo
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
| | - Zhongmei He
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
| | - Yan Zhao
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
| | - Ying Zong
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
| | - Jianming Li
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
| | - Weijia Chen
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China.
| | - Rui DU
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China; Jilin Provincial Engineering Research Center for Efficient Breeding and Product Development of Sika Deer, Changchun 130118, China; Key Laboratory of Animal Production and Product Quality and Security, Ministry of Education, Ministry of National Education, Changchun 130118, China.
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22
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Wang FX, Jin LW. Research on the Mechanism and Application of Acupuncture Therapy for Asthma: A Review. J Asthma Allergy 2024; 17:495-516. [PMID: 38828396 PMCID: PMC11144428 DOI: 10.2147/jaa.s462262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Accepted: 05/13/2024] [Indexed: 06/05/2024] Open
Abstract
Asthma is a high-risk disease based on airway hyperresponsiveness (AHR). In this review, we found that there are many studies on clinical therapy for asthma that focus on the efficacy of acupuncture therapy and its mechanisms, including the functional connectivity of different brain regions, with the aid of functional magnetic resonance imaging (fMRI), immune responses/cell recognition (innate lymphoid cells and balance of Th1/Th2 and Treg/Th17), intracellular mechanism (autophagy, endoplasmic reticulum stress, and epigenetic alteration), and ligand-receptor/chemical signaling pathway (neurotransmitter, hormone, and small molecules). In this review, we summarized the clinical and experimental evidence for the mechanisms of acupuncture therapy in asthma to offer insights into drug discovery and clinical therapy. Given the paucity of clinical studies on the mechanisms of acupuncture in the treatment of asthma, this review notably included studies based on animal models to investigate the mechanisms of acupuncture in the treatment of asthma.
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Affiliation(s)
- Fei-xuan Wang
- Department of Clinical Medical College, Qilu Medical College, Zibo, Shandong, People’s Republic of China
| | - Lu-wei Jin
- Department of Acupuncture and Tuina, Wenzhou Hospital of Traditional Chinese Medicine, Wenzhou, Zhejiang, People’s Republic of China
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23
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Ye Y, Li L, Kang H, Wan Z, Zhang M, Gang B, Liu J, Liu G, Gu W. LAMP1 controls CXCL10-CXCR3 axis mediated inflammatory regulation of macrophage polarization during inflammatory stimulation. Int Immunopharmacol 2024; 132:111929. [PMID: 38555817 DOI: 10.1016/j.intimp.2024.111929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 03/08/2024] [Accepted: 03/22/2024] [Indexed: 04/02/2024]
Abstract
Increased expression of CXCL10 and its receptor CXCR3 represents an inflammatory response in cells and tissues. Macrophage polarization and autophagy are major functions in inflammatory macrophages; however, the cellular functions of the CXCL10-CXCR3 axis in macrophages are not well understood. Here, we examined the role of CXCL10-CXCR3-axis-regulated autophagy in macrophage polarization. First, in non-inflammatory macrophages, whereas CXCL10 promotes M2 polarization and inhibits M1 polarization, CXCR3 antagonist AMG487 induces the opposite macrophage polarization. Next, CXCL10 promotes the expression of autophagy proteins (Atg5-Atg12 complex, p62, LC3-II, and LAMP1) and AMG487 inhibits their expression. Knockdown of LAMP1 by short interfering RNA switches the CXCL10-induced polarization from M2 to M1 in non-inflammatory macrophages. Furthermore, in inflammatory macrophages stimulated by poly(I:C), CXCL10 induces M1 polarization and AMG487 induces M2 polarization in association with a decrease in LAMP1. Finally, AMG487 alleviates lung injury after poly(I:C) treatment in mice. In conclusion, CXCL10-CXCR3 axis differentially directs macrophage polarization in inflammatory and non-inflammatory states, and autophagy protein LAMP1 acts as the switch controlling the direction of macrophage polarization by CXCL10-CXCR3.
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Affiliation(s)
- Yingying Ye
- Department of Biochemistry and Molecular Biology, School of Laboratory Medicine, and Anhui Province Key Laboratory of Cancer Translational Medicine, Bengbu Medical University, 2600 Donghai Avenue, Bengbu, Anhui 233030, China; Reproduction Medicine Center, The First Affiliated Hospital of Bengbu Medical University, Bengbu, Anhui, 233030, China
| | - Lexing Li
- Department of Basic Veterinary Medicine, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Hu Kang
- Department of Biochemistry and Molecular Biology, School of Laboratory Medicine, and Anhui Province Key Laboratory of Cancer Translational Medicine, Bengbu Medical University, 2600 Donghai Avenue, Bengbu, Anhui 233030, China
| | - Ziyu Wan
- Department of Biochemistry and Molecular Biology, School of Laboratory Medicine, and Anhui Province Key Laboratory of Cancer Translational Medicine, Bengbu Medical University, 2600 Donghai Avenue, Bengbu, Anhui 233030, China
| | - Mengjie Zhang
- Department of Biochemistry and Molecular Biology, School of Laboratory Medicine, and Anhui Province Key Laboratory of Cancer Translational Medicine, Bengbu Medical University, 2600 Donghai Avenue, Bengbu, Anhui 233030, China
| | - Baocai Gang
- Department of Biochemistry and Molecular Biology, School of Laboratory Medicine, and Anhui Province Key Laboratory of Cancer Translational Medicine, Bengbu Medical University, 2600 Donghai Avenue, Bengbu, Anhui 233030, China
| | - Jie Liu
- College of Animal and Veterinary Science, Southwest Minzu University, Chengdu, Sichuan 610041, China
| | - Guoquan Liu
- Department of Biochemistry and Molecular Biology, School of Laboratory Medicine, and Anhui Province Key Laboratory of Cancer Translational Medicine, Bengbu Medical University, 2600 Donghai Avenue, Bengbu, Anhui 233030, China.
| | - Wei Gu
- Department of Biochemistry and Molecular Biology, School of Laboratory Medicine, and Anhui Province Key Laboratory of Cancer Translational Medicine, Bengbu Medical University, 2600 Donghai Avenue, Bengbu, Anhui 233030, China.
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24
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Lee J, Kim MY, Kim HJ, Choi WS, Kim HS. Impaired autophagy in myeloid cells aggravates psoriasis-like skin inflammation through the IL-1β/CXCL2/neutrophil axis. Cell Biosci 2024; 14:57. [PMID: 38704587 PMCID: PMC11069248 DOI: 10.1186/s13578-024-01238-0] [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: 01/28/2024] [Accepted: 04/22/2024] [Indexed: 05/06/2024] Open
Abstract
BACKGROUND Psoriasis is an inflammatory skin disease characterized by the hyperproliferative epidermal keratinocytes and significant immune cells infiltration, leading to cytokines production such as IL-1β, TNF-α, IL-23, and IL-17. Recent study highlights the critical role of IL-1β in the induction and activation of pathogenic Th17 and IL-17-producing γδ T cells, contributing to psoriasis. However, the mechanism underlying IL-1β dysregulation in psoriasis pathogenesis is unclear. Autophagy regulates IL-1β production and has a pleiotropic effect on inflammatory disorders. Previous studies showed controversial role of autophagy in psoriasis pathogenesis, either pro-inflammatory in autophagy-deficient keratinocyte or anti-inflammatory in pharmacologically autophagy-promoting macrophages. Thus, the direct role of autophagy and its therapeutic potential in psoriasis remains unclear. METHODS We used myeloid cell-specific autophagy-related gene 7 (Atg7)-deficient mice and determined the effect of autophagy deficiency in myeloid cells on neutrophilia and disease pathogenesis in an imiquimod-induced psoriasis mouse model. We then assessed the pathogenic mechanism focusing on immune cells producing IL-1β and IL-17 along with gene expression profiles associated with psoriasis in mouse model and public database on patients. Moreover, therapeutic potential of IL-1β blocking in such context was assessed. RESULTS We found that autophagy deficiency in myeloid cells exacerbated neutrophilic inflammation and disease pathogenesis in mice with psoriasis. This autophagy-dependent effect was associated with a significant increase in IL-1β production from myeloid cells, particularly macrophages, Cxcl2 expression, and IL-17 A producing T cells including γδ T cells. Supporting this, treatment with systemic IL-1 receptor blocking antibody or topical saccharin, a disaccharide suppressing pro-IL-1β expression, led to the alleviation of neutrophilia and psoriatic skin inflammation linked to autophagy deficiency. The pathophysiological relevance of this finding was supported by dysregulation of autophagy-related genes and their correlation with Th17 cytokines in psoriatic skin lesion from patients with psoriasis. CONCLUSIONS Our results suggest that autophagy dysfunction in myeloid cells, especially macrophages, along with IL-1β dysregulation has a causal role in neutrophilic inflammation and psoriasis pathogenesis.
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Affiliation(s)
- Jinju Lee
- Department of Microbiology, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea
| | - Mi-Yeon Kim
- Department of Microbiology, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea
| | - Hyo Jeong Kim
- Department of Microbiology, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea
| | - Woo Sun Choi
- Department of Microbiology, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea
| | - Hun Sik Kim
- Department of Microbiology, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea.
- Stem Cell Immunomodulation Research Center (SCIRC), Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
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25
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Nurmi K, Silventoinen K, Keskitalo S, Rajamäki K, Kouri VP, Kinnunen M, Jalil S, Maldonado R, Wartiovaara K, Nievas EI, Denita-Juárez SP, Duncan CJA, Kuismin O, Saarela J, Romo I, Martelius T, Parantainen J, Beklen A, Bilicka M, Matikainen S, Nordström DC, Kaustio M, Wartiovaara-Kautto U, Kilpivaara O, Klein C, Hauck F, Jahkola T, Hautala T, Varjosalo M, Barreto G, Seppänen MRJ, Eklund KK. Truncating NFKB1 variants cause combined NLRP3 inflammasome activation and type I interferon signaling and predispose to necrotizing fasciitis. Cell Rep Med 2024; 5:101503. [PMID: 38593810 PMCID: PMC11031424 DOI: 10.1016/j.xcrm.2024.101503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/04/2024] [Accepted: 03/18/2024] [Indexed: 04/11/2024]
Abstract
In monogenic autoinflammatory diseases, mutations in genes regulating innate immune responses often lead to uncontrolled activation of inflammasome pathways or the type I interferon (IFN-I) response. We describe a mechanism of autoinflammation potentially predisposing patients to life-threatening necrotizing soft tissue inflammation. Six unrelated families are identified in which affected members present with necrotizing fasciitis or severe soft tissue inflammations. Exome sequencing reveals truncating monoallelic loss-of-function variants of nuclear factor κ light-chain enhancer of activated B cells (NFKB1) in affected patients. In patients' macrophages and in NFKB1-variant-bearing THP-1 cells, activation increases both interleukin (IL)-1β secretion and IFN-I signaling. Truncation of NF-κB1 impairs autophagy, accompanied by the accumulation of reactive oxygen species and reduced degradation of inflammasome receptor nucleotide-binding oligomerization domain, leucine-rich repeat-containing protein 3 (NLRP3), and Toll/IL-1 receptor domain-containing adaptor protein inducing IFN-β (TRIF), thus leading to combined excessive inflammasome and IFN-I activity. Many of the patients respond to anti-inflammatory treatment, and targeting IL-1β and/or IFN-I signaling could represent a therapeutic approach for these patients.
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Affiliation(s)
- Katariina Nurmi
- Faculty of Medicine, Clinicum, Translational Immunology Research Program, Research Program Unit (RPU), University of Helsinki (UH), 00014 Helsinki, Finland
| | - Kristiina Silventoinen
- Faculty of Medicine, Clinicum, Translational Immunology Research Program, Research Program Unit (RPU), University of Helsinki (UH), 00014 Helsinki, Finland
| | - Salla Keskitalo
- Systems Biology/Pathology Research Group, iCAN Digital Precision Cancer Medicine Flagship, Institute of Biotechnology, HiLIFE, UH, 00014 Helsinki, Finland
| | - Kristiina Rajamäki
- Faculty of Medicine, Clinicum, Translational Immunology Research Program, Research Program Unit (RPU), University of Helsinki (UH), 00014 Helsinki, Finland; Department of Medical and Clinical Genetics, Applied Tumor Genomics Research Program, RPU, UH, 00014 Helsinki, Finland
| | - Vesa-Petteri Kouri
- Faculty of Medicine, Clinicum, Translational Immunology Research Program, Research Program Unit (RPU), University of Helsinki (UH), 00014 Helsinki, Finland
| | - Matias Kinnunen
- Systems Biology/Pathology Research Group, iCAN Digital Precision Cancer Medicine Flagship, Institute of Biotechnology, HiLIFE, UH, 00014 Helsinki, Finland
| | - Sami Jalil
- Clinical Genetics UH and Helsinki University Hospital (HUH), 00014 Helsinki, Finland
| | - Rocio Maldonado
- Clinical Genetics UH and Helsinki University Hospital (HUH), 00014 Helsinki, Finland
| | - Kirmo Wartiovaara
- Clinical Genetics UH and Helsinki University Hospital (HUH), 00014 Helsinki, Finland
| | | | | | - Christopher J A Duncan
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne NE1 4HH, UK
| | - Outi Kuismin
- Department of Clinical Genetics, Oulu University Hospital (OUH), 90014 Oulu, Finland; PEDEGO Research Unit and Medical Research Center Oulu, OUH and University of Oulu (OU), 90014 Oulu, Finland
| | - Janna Saarela
- Institute for Molecular Medicine Finland, HiLIFE, UH, 00014 Helsinki, Finland; Centre for Molecular Medicine Norway, University of Oslo, 0313 Oslo, Norway; Department of Medical Genetics, Oslo University Hospital, 0450 Oslo, Norway
| | - Inka Romo
- Inflammation Center, Department of Infectious Disease, HUH, 00029 Helsinki, Finland
| | - Timi Martelius
- Inflammation Center, Department of Infectious Disease, HUH, 00029 Helsinki, Finland
| | - Jukka Parantainen
- Faculty of Medicine, Clinicum, Translational Immunology Research Program, Research Program Unit (RPU), University of Helsinki (UH), 00014 Helsinki, Finland
| | - Arzu Beklen
- Faculty of Medicine, Clinicum, Translational Immunology Research Program, Research Program Unit (RPU), University of Helsinki (UH), 00014 Helsinki, Finland
| | - Marcelina Bilicka
- Faculty of Medicine, Clinicum, Translational Immunology Research Program, Research Program Unit (RPU), University of Helsinki (UH), 00014 Helsinki, Finland
| | - Sampsa Matikainen
- Faculty of Medicine, Clinicum, Translational Immunology Research Program, Research Program Unit (RPU), University of Helsinki (UH), 00014 Helsinki, Finland
| | - Dan C Nordström
- Faculty of Medicine, Clinicum, Translational Immunology Research Program, Research Program Unit (RPU), University of Helsinki (UH), 00014 Helsinki, Finland; Department of Internal Medicine and Rehabilitation, HUH and UH, 00029 Helsinki, Finland
| | - Meri Kaustio
- Institute for Molecular Medicine Finland, HiLIFE, UH, 00014 Helsinki, Finland
| | - Ulla Wartiovaara-Kautto
- Department of Hematology, HUH, Comprehensive Cancer Center, UH, 00029 Helsinki, Finland; Applied Tumor Genomics Research Program, RPU, Faculty of Medicine, UH, 00014 Helsinki, Finland
| | - Outi Kilpivaara
- Applied Tumor Genomics Research Program, RPU, Faculty of Medicine, UH, 00014 Helsinki, Finland; Department of Medical and Clinical Genetics/Medicum, Faculty of Medicine, UH, 00014 Helsinki, Finland; iCAN Digital Precision Cancer Medicine Flagship, UH, 00014 Helsinki, Finland; HUS Diagnostic Center, HUSLAB Laboratory of Genetics, HUH, 00029 Helsinki, Finland
| | - Christoph Klein
- Department of Pediatrics, Dr. von Hauner Children's Hospital, University Hospital, Ludwig-Maximilians-Universität München, 80337 Munich, Germany
| | - Fabian Hauck
- Department of Pediatrics, Dr. von Hauner Children's Hospital, University Hospital, Ludwig-Maximilians-Universität München, 80337 Munich, Germany
| | - Tiina Jahkola
- Department of Plastic Surgery, HUH, 00029 Helsinki, Finland
| | - Timo Hautala
- Research Unit of Internal Medicine and Biomedicine, OU, and Infectious Diseases Clinic, OUH, 90014 Oulu, Finland
| | - Markku Varjosalo
- Systems Biology/Pathology Research Group, iCAN Digital Precision Cancer Medicine Flagship, Institute of Biotechnology, HiLIFE, UH, 00014 Helsinki, Finland
| | - Goncalo Barreto
- Faculty of Medicine, Clinicum, Translational Immunology Research Program, Research Program Unit (RPU), University of Helsinki (UH), 00014 Helsinki, Finland
| | - Mikko R J Seppänen
- Adult Immunodeficiency Unit, Infectious Diseases, Inflammation Center, HUH and UH, 00029 Helsinki, Finland; Rare Disease Center, Children and Adolescents, HUH and UH, 00029 Helsinki, Finland.
| | - Kari K Eklund
- Faculty of Medicine, Clinicum, Translational Immunology Research Program, Research Program Unit (RPU), University of Helsinki (UH), 00014 Helsinki, Finland; Department of Rheumatology, HUH and UH, 00029 Helsinki, Finland; Orton Orthopaedic Hospital, 00280 Helsinki, Finland.
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Zhu J, Jin Z, Wang J, Wu Z, Xu T, Tong G, Shen E, Fan J, Jiang C, Wang J, Li X, Cong W, Lin L. FGF21 ameliorates septic liver injury by restraining proinflammatory macrophages activation through the autophagy/HIF-1α axis. J Adv Res 2024:S2090-1232(24)00134-6. [PMID: 38599281 DOI: 10.1016/j.jare.2024.04.004] [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: 02/02/2024] [Revised: 03/26/2024] [Accepted: 04/07/2024] [Indexed: 04/12/2024] Open
Abstract
INTRODUCTION Sepsis, a systemic immune syndrome caused by severe trauma or infection, poses a substantial threat to the health of patients worldwide. The progression of sepsis is heavily influenced by septic liver injury, which is triggered by infection and cytokine storms, and has a significant impact on the tolerance and prognosis of septic patients. The objective of our study is to elucidate the biological role and molecular mechanism of fibroblast growth factor 21 (FGF21) in the process of sepsis. OBJECTIVES This study was undertaken in an attempt to elucidate the function and molecular mechanism of FGF21 in therapy of sepsis. METHODS Serum concentrations of FGF21 were measured in sepsis patients and septic mice. Liver injury was compared between mice FGF21 knockout (KO) mice and wildtype (WT) mice. To assess the therapeutic potential, recombinant human FGF21 was administered to septic mice. Furthermore, the molecular mechanism of FGF21 was investigated in mice with myeloid-cell specific HIF-1α overexpression mice (LyzM-CreDIO-HIF-1α) and myeloid-cell specific Atg7 knockout mice (Atg7△mye). RESULTS Serum level of FGF21 was significantly increased in sepsis patients and septic mice. Through the use of recombinant human FGF21 (rhFGF21) and FGF21 KO mice, we found that FGF21 mitigated septic liver injury by inhibiting the initiation and propagation of inflammation. Treatment with rhFGF21 effectively suppressed the activation of proinflammatory macrophages by promoting macroautophagy/autophagy degradation of hypoxia-inducible factor-1α (HIF-1α). Importantly, the therapeutic effect of rhFGF21 against septic liver injury was nullified in LyzM-CreDIO-HIF-1α mice and Atg7△mye mice. CONCLUSIONS Our findings demonstrate that FGF21 considerably suppresses inflammation upon septic liver injury through the autophagy/ HIF-1α axis.
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Affiliation(s)
- Junjie Zhu
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou 325000, PR China; Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, PR China
| | - Zhouxiang Jin
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, PR China
| | - Jie Wang
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, PR China
| | - Zhaohang Wu
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou 325000, PR China; Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, PR China
| | - Tianpeng Xu
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou 325000, PR China; Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, PR China
| | - Gaozan Tong
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou 325000, PR China
| | - Enzhao Shen
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou 325000, PR China
| | - Junfu Fan
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou 325000, PR China; Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, PR China
| | - Chunhui Jiang
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou 325000, PR China; Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, PR China
| | - Jiaqi Wang
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou 325000, PR China; Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, PR China
| | - Xiaokun Li
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou 325000, PR China; Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, PR China; Department of Hepatobiliary Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, PR China
| | - Weitao Cong
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou 325000, PR China; Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, PR China; Haihe Laboratory of Cell Ecosystem, School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, PR China
| | - Li Lin
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou 325000, PR China; Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, PR China.
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Singh N, Ghavami S, Chelikani P. Characterization of Bitter Taste Receptor-Dependent Autophagy in Oral Epithelial Cells. Methods Mol Biol 2024. [PMID: 38578576 DOI: 10.1007/7651_2024_531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/06/2024]
Abstract
Microbial dysbiosis is an important trigger in the development of oral diseases. Oral keratinocytes or gingival epithelial cells (GECs) offer protection against various microbial insults. Recent studies suggest that GECs expressed higher level of bitter taste receptor 14 (T2R14) compared to other taste receptors and toll-like receptors and act as innate immune sentinels. Macroautophagy or autophagy is a cellular conserved process involved in the regulation of host innate immune responses against microbial infection. Here, we describe a robust method for evaluation of T2R14-dependent autophagy flux in GECs. Autophagy flux was detected using Western blot analysis in GECs and further was confirmed using Acridine Orange-dependent flow cytometry analysis.
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Affiliation(s)
- Nisha Singh
- Manitoba Chemosensory Biology (MCSB) Research Group, Winnipeg, MB, Canada
- Department of Oral Biology, Dr. Gerald Niznick College of Dentistry, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
| | - Saeid Ghavami
- Research Institute of Oncology and Hematology, Cancer Care Manitoba-University of Manitoba, Winnipeg, MB, Canada.
- Department of Human Anatomy and Cell Science, University of Manitoba College of Medicine, Winnipeg, MB, Canada.
| | - Prashen Chelikani
- Manitoba Chemosensory Biology (MCSB) Research Group, Winnipeg, MB, Canada.
- Department of Oral Biology, Dr. Gerald Niznick College of Dentistry, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada.
- Department of Biochemistry and Medical Genetics, Department of Physiology and Pathophysiology, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada.
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28
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Rafiq S, Mungure I, Banz Y, Niklaus NJ, Kaufmann T, Müller S, Jacquel A, Robert G, Auberger P, Torbett BE, Muller S, Tschan MP, Humbert M. HSPA8 Chaperone Complex Drives Chaperone-Mediated Autophagy Regulation in Acute Promyelocytic Leukemia Cell Differentiation. Pharmacology 2024; 109:216-230. [PMID: 38569476 DOI: 10.1159/000537864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 02/14/2024] [Indexed: 04/05/2024]
Abstract
INTRODUCTION Acute myeloid leukemia (AML) is a cancer of the hematopoietic system characterized by hyperproliferation of undifferentiated cells of the myeloid lineage. While most of AML therapies are focused toward tumor debulking, all-trans retinoic acid (ATRA) induces neutrophil differentiation in the AML subtype acute promyelocytic leukemia (APL). Macroautophagy has been extensively investigated in the context of various cancers and is often dysregulated in AML where it can have context-dependent pro- or anti-leukemogenic effects. On the contrary, the implications of chaperone-mediated autophagy (CMA) on the pathophysiology of diseases are still being explored and its role in AML remains elusive. METHODS We took advantage of human AML primary samples and databases to analyze CMA gene expression and activity. Furthermore, we used ATRA-sensitive (NB4) and -resistant (NB4-R1) APL cells to further dissect a potential function for CMA in ATRA-mediated neutrophil differentiation. NB4-R1 cells are unique in that they do respond to retinoic acid transcriptionally but do not mature in response to retinoid signaling alone unless maturation is triggered by adding cyclic adenosine monophosphate. RESULTS Here, we report that CMA-related mRNA transcripts are significantly higher expressed in immature hematopoietic cells as compared to neutrophils, contrasting the macroautophagy gene expression patterns. Accordingly, lysosomal degradation of an mCherry-KFERQ CMA reporter decreases during ATRA-induced differentiation of APL cells. On the other hand, using NB4-R1 cells we found that macroautophagy flux primed ATRA-resistant NB4-R1 cells to differentiate upon ATRA treatment but reduced the association of lysosome-associated membrane protein type 2A (LAMP-2A) and heat shock protein family A (Hsp70) member 8 (HSPA8), necessary for complete neutrophil maturation. Accordingly, depletion of HSPA8 attenuated CMA activity and facilitated APL cell differentiation. In contrast, maintaining high CMA activity by ectopic expression of LAMP-2A impeded APL differentiation. CONCLUSION Overall, our findings suggest that APL neutrophil differentiation requires CMA inactivation and that this pathway predominantly depends on HSPA8 and is possibly assisted by other co-chaperones.
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Affiliation(s)
- Sreoshee Rafiq
- Institute of Tissue Medicine and Pathology, University of Bern, Bern, Switzerland
- Graduate School for Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland
| | - Irene Mungure
- Institute of Tissue Medicine and Pathology, University of Bern, Bern, Switzerland
| | - Yara Banz
- Institute of Tissue Medicine and Pathology, University of Bern, Bern, Switzerland
| | - Nicolas J Niklaus
- Institute of Tissue Medicine and Pathology, University of Bern, Bern, Switzerland
- Graduate School for Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland
| | - Thomas Kaufmann
- Institute of Pharmacology, University of Bern, Bern, Switzerland
| | - Stefan Müller
- Flow Cytometry and Cell Sorting Core Facility, Department for BioMedical Research, University of Bern, Bern, Switzerland
| | | | | | | | - Bruce E Torbett
- Department of Pediatrics, School of Medicine, Center for Immunity and Immunotherapies, University of Washington and Seattle Children's Research Institute, Seattle, Washington, USA
| | - Sylviane Muller
- TRANSAUTOPHAGY: European Network of Multidisciplinary Research and Translation of Autophagy Knowledge, COST Action CA15138, Brussels, Belgium
- Ecole Supérieure de Biotechnologie de Strasbourg, CNRS and Strasbourg University, Unit Biotechnology and Cell Signaling, Illkirch, France
- Strasbourg Drug Discovery and Development Institute (IMS), Strasbourg, France
- Chair Therapeutic Immunology, University of Strasbourg Institute for Advanced Study, Strasbourg, France
| | - Mario P Tschan
- Institute of Tissue Medicine and Pathology, University of Bern, Bern, Switzerland
- Graduate School for Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland
- TRANSAUTOPHAGY: European Network of Multidisciplinary Research and Translation of Autophagy Knowledge, COST Action CA15138, Brussels, Belgium
| | - Magali Humbert
- Institute of Tissue Medicine and Pathology, University of Bern, Bern, Switzerland
- TRANSAUTOPHAGY: European Network of Multidisciplinary Research and Translation of Autophagy Knowledge, COST Action CA15138, Brussels, Belgium
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Zhang P, Catterson JH, Grönke S, Partridge L. Inhibition of S6K lowers age-related inflammation and increases lifespan through the endolysosomal system. NATURE AGING 2024; 4:491-509. [PMID: 38413780 PMCID: PMC11031405 DOI: 10.1038/s43587-024-00578-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 01/24/2024] [Indexed: 02/29/2024]
Abstract
Suppression of target of rapamycin complex 1 (TORC1) by rapamycin ameliorates aging in diverse species. S6 kinase (S6K) is an essential mediator, but the mechanisms involved are unclear. Here we show that activation of S6K specifically in Drosophila fat-body blocked extension of lifespan by rapamycin, induced accumulation of multilamellar lysosomes and blocked age-associated hyperactivation of the NF-κB-like immune deficiency (IMD) pathway, indicative of reduced inflammaging. Syntaxin 13 mediated the effects of TORC1-S6K signaling on lysosome morphology and inflammaging, suggesting they may be linked. Inflammaging depended on the IMD receptor regulatory isoform PGRP-LC, and repression of the IMD pathway from midlife extended lifespan. Age-related inflammaging was higher in females than in males and was not lowered in males by rapamycin treatment or lowered S6K. Rapamycin treatment also elevated Syntaxin 12/13 levels in mouse liver and prevented age-related increase in noncanonical NF-κB signaling, suggesting that the effect of TORC1 on inflammaging is conserved from flies to mammals.
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Affiliation(s)
- Pingze Zhang
- Max Planck Institute for Biology of Ageing, Cologne, Germany
| | - James H Catterson
- Institute of Healthy Ageing, Department of Genetics, Evolution and Environment, University College London, London, UK
- Centre for Discovery Brain Sciences, UK Dementia Research Institute, University of Edinburgh, Edinburgh, UK
| | | | - Linda Partridge
- Max Planck Institute for Biology of Ageing, Cologne, Germany.
- Institute of Healthy Ageing, Department of Genetics, Evolution and Environment, University College London, London, UK.
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Xu S, Miao Y, Dong J, Cui L, Liu K, Li J, Meng X, Zhu G, Wang H. Selenomethionine Inhibits NF-κB-mediated Inflammatory Responses of Bovine Mammary Epithelial Cells Caused by Klebsiella pneumoniae by Increasing Autophagic Flux. Biol Trace Elem Res 2024; 202:1568-1581. [PMID: 37407885 DOI: 10.1007/s12011-023-03757-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 06/28/2023] [Indexed: 07/07/2023]
Abstract
Klebsiella pneumoniae (K. pneumoniae) is one of the major pathogens causing bovine clinical mastitis. Autophagy maintains cellular homeostasis and resists excessive inflammation in eukaryotic organisms. Selenomethionine (Se-Met) is commonly used as a source of selenium supplementation for dairy cows. This study aimed to investigate the effects of Se-Met on inflammatory responses mediated by nuclear factor-kappa B (NF-κB) through autophagy. We infected bovine mammary epithelial cell line (MAC-T) with K. pneumoniae and examined the expression of autophagy-related proteins and changes in autophagic vesicles, LC3 puncta, and autophagic flux at various intervals. The results showed that K. pneumoniae activated the early-stage autophagy of MAC-T cells. The levels of LC3-II, Beclin1, and ATG5, as well as the number of LC3 puncta and autophagic vesicles, increased after 2 h post-treatment. However, the late-stage autophagic flux was blocked. Furthermore, the effect of autophagy on NF-κB-mediated inflammation was investigated with different autophagy levels. The findings showed that enhanced autophagy inhibited the K. pneumoniae-induced inflammatory responses of MAC-T cells. The opposite results were found with the inhibition of autophagy. Finally, we examined the effect of Se-Met on NF-κB-mediated inflammation based on autophagy. The results indicated that Se-Met alleviated K. pneumoniae-induced autophagic flux blockage, inhibited NF-κB-mediated inflammation, and decreased the adhesion of K. pneumoniae to MAC-T cells. The inhibitory effect of Se-Met on NF-κB-mediated inflammation could be partially blocked by the autophagy inhibitor chloroquine (CQ). Overall, Se-Met attenuated K. pneumoniae-induced NF-κB-mediated inflammatory responses by enhancing autophagic flux.
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Affiliation(s)
- Siyan Xu
- College of Veterinary Medicine, Yangzhou University, 225009, Yangzhou, China
- Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, Jiangsu, China
- International Research Laboratory of Prevention and Control of Important Animal Infectious Diseases and Zoonotic Diseases of Jiangsu Higher Education Institutions, Yangzhou University, Yangzhou, 225009, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou, 225009, Jiangsu, China
| | - Yixue Miao
- College of Veterinary Medicine, Yangzhou University, 225009, Yangzhou, China
- Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, Jiangsu, China
- International Research Laboratory of Prevention and Control of Important Animal Infectious Diseases and Zoonotic Diseases of Jiangsu Higher Education Institutions, Yangzhou University, Yangzhou, 225009, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou, 225009, Jiangsu, China
| | - Junsheng Dong
- College of Veterinary Medicine, Yangzhou University, 225009, Yangzhou, China
- Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, Jiangsu, China
- International Research Laboratory of Prevention and Control of Important Animal Infectious Diseases and Zoonotic Diseases of Jiangsu Higher Education Institutions, Yangzhou University, Yangzhou, 225009, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou, 225009, Jiangsu, China
| | - Luying Cui
- College of Veterinary Medicine, Yangzhou University, 225009, Yangzhou, China
- Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, Jiangsu, China
- International Research Laboratory of Prevention and Control of Important Animal Infectious Diseases and Zoonotic Diseases of Jiangsu Higher Education Institutions, Yangzhou University, Yangzhou, 225009, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou, 225009, Jiangsu, China
| | - Kangjun Liu
- College of Veterinary Medicine, Yangzhou University, 225009, Yangzhou, China
- Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, Jiangsu, China
- International Research Laboratory of Prevention and Control of Important Animal Infectious Diseases and Zoonotic Diseases of Jiangsu Higher Education Institutions, Yangzhou University, Yangzhou, 225009, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou, 225009, Jiangsu, China
| | - Jianji Li
- College of Veterinary Medicine, Yangzhou University, 225009, Yangzhou, China
- Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, Jiangsu, China
- International Research Laboratory of Prevention and Control of Important Animal Infectious Diseases and Zoonotic Diseases of Jiangsu Higher Education Institutions, Yangzhou University, Yangzhou, 225009, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou, 225009, Jiangsu, China
| | - Xia Meng
- College of Veterinary Medicine, Yangzhou University, 225009, Yangzhou, China
- Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, Jiangsu, China
- International Research Laboratory of Prevention and Control of Important Animal Infectious Diseases and Zoonotic Diseases of Jiangsu Higher Education Institutions, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Guoqiang Zhu
- College of Veterinary Medicine, Yangzhou University, 225009, Yangzhou, China
- Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, Jiangsu, China
- International Research Laboratory of Prevention and Control of Important Animal Infectious Diseases and Zoonotic Diseases of Jiangsu Higher Education Institutions, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Heng Wang
- College of Veterinary Medicine, Yangzhou University, 225009, Yangzhou, China.
- Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, Jiangsu, China.
- International Research Laboratory of Prevention and Control of Important Animal Infectious Diseases and Zoonotic Diseases of Jiangsu Higher Education Institutions, Yangzhou University, Yangzhou, 225009, Jiangsu, China.
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou, 225009, Jiangsu, China.
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Chen Y, Cao W, Li B, Qiao X, Wang X, Yang G, Li S. The potential role of hydrogen sulfide in regulating macrophage phenotypic changes via PINK1/parkin-mediated mitophagy in sepsis-related cardiorenal syndrome. Immunopharmacol Immunotoxicol 2024; 46:139-151. [PMID: 37971696 DOI: 10.1080/08923973.2023.2281901] [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: 03/14/2023] [Accepted: 11/04/2023] [Indexed: 11/19/2023]
Abstract
OBJECTIVE Sepsis is one of major reasons of cardiorenal syndrome type 5 (CRS-5), resulting in irreversible tissue damage and organ dysfunction. Macrophage has been demonstrated to play key role in the pathophysiology of sepsis, highlighting the need to identify therapeutic targets for modulating macrophage phenotype in sepsis. METHODS AND RESULTS In this study, a rapid-releasing hydrogen sulfide (H2S) donor NaSH, and a slow-releasing H2S compound S-propargyl-cysteine (SPRC) which is derived from garlic, have been studied for the immune-regulatory effects on macrophages. The NaSH and SPRC showed the potential to protect the heart and kidney from tissue injury induced by LPS. The immunohistochemistry of F4/80+ revealed that the infiltration of macrophages in the heart and kidney tissues of LPS-treated mice was reduced by NaSH and SPRC. In addition, in the LPS-triggered inflammatory cascade of RAW264.7 macrophage cells, NaSH and SPRC exhibited significantly inhibitory effects on the secretion of inflammatory cytokines, production of reactive oxygen species (ROS), and regulation of the macrophage phenotype from M1-like to M2-like. Moreover, autophagy, a crucial process involved in the elimination of impaired proteins and organelles during oxidative stress and immune response, was induced by NaSH and SPRC in the presence of LPS stimulation. Consequently, there was an increase in the number of mitochondria and an improvement in mitochondrial membrane potential. This process was mainly mediated by PINK1/Parkin pathway mediated mitophagy. DISCUSSION These results demonstrated that the immunoregulatory effects of H2S donors were through the PINK1/Parkin-mediated mitophagy pathway. Overall, our study provided a new therapeutic direction in LPS-induced cardiorenal injury.
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Affiliation(s)
- Yuxuan Chen
- Department of Cell Biology, Shandong University, Jinan, China
- Shandong Institute of Endocrinology and Metabolic Diseases, Shandong First Medical University, Jinan, China
- Central Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Wei Cao
- Department of Nephrology, The First Affiliated Hospital of Shandong First Medical University, Jinan, China
| | - Bin Li
- Central Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Xiaofei Qiao
- Department of Cell Biology, Shandong University, Jinan, China
| | - Xiangdong Wang
- Department of Cell Biology, Shandong University, Jinan, China
| | - Guang Yang
- Department of Joint Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Siying Li
- Department of Cell Biology, Shandong University, Jinan, China
- Shandong Institute of Endocrinology and Metabolic Diseases, Shandong First Medical University, Jinan, China
- Central Hospital Affiliated to Shandong First Medical University, Jinan, China
- Shandong Provincial Key Laboratory of Cardiovascular Disease Proteomics, Qilu Hospital of Shandong University, Jinan, China
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Singh N, Ulmer B, Medapati MR, Zhang C, Schroth RJ, Ghavami S, Chelikani P. Bitter Taste Receptor T2R14 and Autophagy Flux in Gingival Epithelial Cells. Cells 2024; 13:531. [PMID: 38534375 DOI: 10.3390/cells13060531] [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: 01/17/2024] [Revised: 03/11/2024] [Accepted: 03/14/2024] [Indexed: 03/28/2024] Open
Abstract
Macroautophagy (hereafter autophagy) is a lysosomal degradation pathway that functions in nutrient recycling and as a mechanism of innate immunity. Previously, we reported a novel host-bacteria interaction between cariogenic S. mutans and bitter taste receptor (T2R14) in gingival epithelial cells (GECs), leading to an innate immune response. Further, S. mutans might be using the host immune system to inhibit other Gram-positive bacteria, such as S. aureus. To determine whether these bacteria exploit the autophagic machinery of GEC, it is first necessary to evaluate the role of T2R14 in modulating autophagic flux. So far, the role of T2R14 in the regulation of autophagy is not well characterized. Therefore, in this study, for the first time, we report that T2R14 downregulates autophagy flux in GECs, and T2R14 knockout increases acidic vacuoles. However, the treatments of GEC WT with a T2R14 agonist and antagonist did not lead to a significant change in acidic vacuole formation. Transmission electron microscopy morphometric results also suggested an increased number of autophagic vesicles in T2R14-knockout GEC. Further, our results suggest that S. mutans competence stimulating peptide CSP-1 showed robust intracellular calcium release and this effect is both T2R14- and autophagy protein 7-dependent. In this study, we provide the first evidence that T2R14 modulates autophagy flux in GEC. The results of the current study could help in identifying the impact of T2R in regulation of the immuno-microenvironment of GEC and subsequently oral health.
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Affiliation(s)
- Nisha Singh
- Manitoba Chemosensory Biology (MCSB) Research Group, Department of Oral Biology, University of Manitoba, 780 Bannatyne Avenue, Winnipeg, MB R3E 0W4, Canada
- Rady Faculty of Health Sciences, Dr. Gerald Niznick College of Dentistry, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - Ben Ulmer
- Manitoba Chemosensory Biology (MCSB) Research Group, Department of Oral Biology, University of Manitoba, 780 Bannatyne Avenue, Winnipeg, MB R3E 0W4, Canada
- Rady Faculty of Health Sciences, Dr. Gerald Niznick College of Dentistry, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - Manoj Reddy Medapati
- Manitoba Chemosensory Biology (MCSB) Research Group, Department of Oral Biology, University of Manitoba, 780 Bannatyne Avenue, Winnipeg, MB R3E 0W4, Canada
- Rady Faculty of Health Sciences, Dr. Gerald Niznick College of Dentistry, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - Christine Zhang
- University of Manitoba Flow Cytometry Core Facility, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - Robert J Schroth
- Manitoba Chemosensory Biology (MCSB) Research Group, Department of Oral Biology, University of Manitoba, 780 Bannatyne Avenue, Winnipeg, MB R3E 0W4, Canada
- Rady Faculty of Health Sciences, Dr. Gerald Niznick College of Dentistry, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
- Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - Saeid Ghavami
- Research Institute of Oncology and Hematology, Cancer Care Manitoba, University of Manitoba, Winnipeg, MB R3E 0V9, Canada
- Department of Human Anatomy and Cell Science, University of Manitoba College of Medicine, Winnipeg, MB R3E 0W2, Canada
| | - Prashen Chelikani
- Manitoba Chemosensory Biology (MCSB) Research Group, Department of Oral Biology, University of Manitoba, 780 Bannatyne Avenue, Winnipeg, MB R3E 0W4, Canada
- Rady Faculty of Health Sciences, Dr. Gerald Niznick College of Dentistry, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
- Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
- Department of Human Anatomy and Cell Science, University of Manitoba College of Medicine, Winnipeg, MB R3E 0W2, Canada
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Takahashi K, Kurokawa K, Hong L, Miyagawa K, Mochida-Saito A, Takeda H, Tsuji M. Hippocampal and gut AMPK activation attenuates enterocolitis-like symptoms and co-occurring depressive-like behavior in ulcerative colitis model mice: Involvement of brain-gut autophagy. Exp Neurol 2024; 373:114671. [PMID: 38160982 DOI: 10.1016/j.expneurol.2023.114671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 11/13/2023] [Accepted: 12/24/2023] [Indexed: 01/03/2024]
Abstract
Patients with inflammatory bowel disease, including ulcerative colitis (UC) and Crohn's disease, have a high incidence of psychiatric disorders, including depression and anxiety. However, the underlying pathogenic mechanism remains unknown. Dextran sulfate sodium (DSS)-treated mice, a model of UC, exhibit depressive-like behavior and reduced adenosine monophosphate-activated protein kinase (AMPK) activity, which regulates various physiological functions in the brain and gut. However, comprehensive studies on UC pathophysiology with co-occurring depression focused on brain-gut AMPK activity are lacking. Therefore, we aimed to investigate whether resveratrol (RES), an AMPK activator, prevented DSS-induced UC-like symptoms and depressive-like behavior. DSS treatment induced UC-like pathology and depressive-like behavior, as assessed via the tail suspension test. Moreover, western blotting and immunohistochemical studies revealed that DSS increased p-p70S6 kinase (Thr389), p62, tumor necrosis factor-α, interleukin (IL)-1β, IL-18, NLR family pyrin domain containing 3 (NLRP3), cleaved caspase-1, cleaved Gasdermin-D (GSDMD), and cleaved caspase-3 expression levels in the rectum and hippocampus, and increased CD40, iNOS, and Kelch-like ECH-associated protein 1 expression levels, and the number of Iba1-positive cells in the hippocampus, and decreased p-AMPK and LC3II/I expression levels, and the number of NF-E2-related factor 2 (Nrf2)-positive cells, and reduced neurogenesis in the hippocampus. These changes were reversed by the RES administration. RES also enhanced PGC1α and SOD1 expression in the hippocampus of DSS-treated male mice. Moreover, NLRP3 staining was observed in the neurons and microglia, and cleaved GSDMD staining in neurons in the hippocampus of DSS-treated mice. Notably, RES prevented UC-like pathology and depressive-like behavior and enhancement of autophagy, decreased rectal and hippocampal inflammatory cytokines and inflammasome, and induced the Nrf2-PGC1α-SOD1 pathway in the hippocampus, resulting in neurogenesis in the hippocampal dentate gyrus. Our findings suggest that brain-gut AMPK activation may be an important therapeutic strategy in patients with UC and depression.
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Affiliation(s)
- Kohei Takahashi
- Department of Pharmacology, School of Pharmacy, International University of Health and Welfare, 2600-1 Kitakanemaru, Ohtawara, Tochigi 324-8501, Japan
| | - Kazuhiro Kurokawa
- Department of Pharmacology, School of Pharmacy, International University of Health and Welfare, 2600-1 Kitakanemaru, Ohtawara, Tochigi 324-8501, Japan
| | - Lihua Hong
- Department of Pharmacology, School of Pharmacy, International University of Health and Welfare, 2600-1 Kitakanemaru, Ohtawara, Tochigi 324-8501, Japan
| | - Kazuya Miyagawa
- Department of Pharmacology, School of Pharmacy, International University of Health and Welfare, 2600-1 Kitakanemaru, Ohtawara, Tochigi 324-8501, Japan
| | - Atsumi Mochida-Saito
- Department of Pharmacology, School of Pharmacy, International University of Health and Welfare, 2600-1 Kitakanemaru, Ohtawara, Tochigi 324-8501, Japan
| | - Hiroshi Takeda
- Department of Pharmacology, School of Pharmacy at Fukuoka, International University of Health and Welfare, 137-1 Enokizu, Okawa, Fukuoka 831-8501, Japan
| | - Minoru Tsuji
- Department of Pharmacology, School of Pharmacy, International University of Health and Welfare, 2600-1 Kitakanemaru, Ohtawara, Tochigi 324-8501, Japan.
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Ying Y, Song LY, Pang WL, Zhang SQ, Yu JZ, Liang PT, Li TG, Sun Y, Wang YY, Yan JY, Yang ZS. Astragalus polysaccharide protects experimental colitis through an aryl hydrocarbon receptor-dependent autophagy mechanism. Br J Pharmacol 2024; 181:681-697. [PMID: 37653584 DOI: 10.1111/bph.16229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 08/17/2023] [Accepted: 08/21/2023] [Indexed: 09/02/2023] Open
Abstract
BACKGROUND AND PURPOSE Disruption of intestinal barriers plays a vital role in the pathogenesis of colitis. The aryl hydrocarbon receptor (AhR) is a recognition sensor that mediates intestinal immune homeostasis and minimizes intestinal inflammation. Astragalus polysaccharide (APS) exerts pharmacological actions in colitis; however, the mechanism has not been elucidated. We investigated whether APS protects through AhR-dependent autophagy. EXPERIMENTAL APPROACH The symptoms of dextran sulfate sodium (DSS)-induced colitis in mice involving intestinal barrier function and inflammatory injury were evaluated after APS administration. Intestinal-specific Becn1 conditional knockout (Becn1 cKO) mice were constructed and compared with wild-type mice. Autophagy and the effects of APS were investigated after the deactivation of AhRs. The relationship between APS-induced AhRs and autophagic Becn1 was investigated using a dual-luciferase reporter system and chromatin immunoprecipitation (ChIP)-quantitative polymerase chain reaction assay. Caco-2 cells were used to investigate inflammatory responses and AhR-dependent autophagy. KEY RESULTS APS improved intestinal barrier function in inflammatory injury in colitis mice. APS triggered autophagic flow; however, knockout of Becn1 in the gut increased susceptibility to colitis, leading to diminished epithelial barrier function and severe intestinal inflammation, impairing the protective effects of APS. Mechanistically, APS-triggered autophagy depends on AhR expression. Activated AhR binds to the promoter Becn1 to operate transcription of genes involved in anti-inflammation and intestinal barrier repair, while deactivation of AhR correlated with intestinal inflammation and the therapeutic function of APS. CONCLUSIONS AND IMPLICATIONS APS protects colitis mice by targeting autophagy, especially as the AhR stimulates the repair of damaged intestinal barrier functions.
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Affiliation(s)
- Yi Ying
- Yunnan Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Chronic Disease in Prevention and Treatment, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
- Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Li-Yun Song
- Yunnan Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Chronic Disease in Prevention and Treatment, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
| | - Wen-Lin Pang
- Yunnan Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Chronic Disease in Prevention and Treatment, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
| | - Si-Qi Zhang
- Yunnan Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Chronic Disease in Prevention and Treatment, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
| | - Jing-Ze Yu
- The Key Laboratory of Molecular Epigenetics of MOE, Institute of Genetics and Cytology, Northeast Normal University, Changchun, Jilin, China
| | - Peng-Tao Liang
- Yunnan Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Chronic Disease in Prevention and Treatment, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
| | - Tian-Gang Li
- Yunnan Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Chronic Disease in Prevention and Treatment, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
| | - Yi Sun
- Yunnan Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Chronic Disease in Prevention and Treatment, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
| | - Yin-Ying Wang
- Yunnan Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Chronic Disease in Prevention and Treatment, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
| | - Jin-Yuan Yan
- Central Laboratory, Kunming Medical University Second Hospital, Kunming, Yunnan, China
| | - Zhong-Shan Yang
- Yunnan Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Chronic Disease in Prevention and Treatment, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
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Zhou J, Li C, Lu M, Jiang G, Chen S, Li H, Lu K. Pharmacological induction of autophagy reduces inflammation in macrophages by degrading immunoproteasome subunits. PLoS Biol 2024; 22:e3002537. [PMID: 38447109 PMCID: PMC10917451 DOI: 10.1371/journal.pbio.3002537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Accepted: 02/05/2024] [Indexed: 03/08/2024] Open
Abstract
Defective autophagy is linked to proinflammatory diseases. However, the mechanisms by which autophagy limits inflammation remain elusive. Here, we found that the pan-FGFR inhibitor LY2874455 efficiently activated autophagy and suppressed expression of proinflammatory factors in macrophages stimulated by lipopolysaccharide (LPS). Multiplex proteomic profiling identified the immunoproteasome, which is a specific isoform of the 20s constitutive proteasome, as a substrate that is degraded by selective autophagy. SQSTM1/p62 was found to be a selective autophagy-related receptor that mediated this degradation. Autophagy deficiency or p62 knockdown blocked the effects of LY2874455, leading to the accumulation of immunoproteasomes and increases in inflammatory reactions. Expression of proinflammatory factors in autophagy-deficient macrophages could be reversed by immunoproteasome inhibitors, confirming the pivotal role of immunoproteasome turnover in the autophagy-mediated suppression on the expression of proinflammatory factors. In mice, LY2874455 protected against LPS-induced acute lung injury and dextran sulfate sodium (DSS)-induced colitis and caused low levels of proinflammatory cytokines and immunoproteasomes. These findings suggested that selective autophagy of the immunoproteasome was a key regulator of signaling via the innate immune system.
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Affiliation(s)
- Jiao Zhou
- Department of Neurosurgery, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and the Research Units of West China, Chinese Academy of Medical Sciences, Chengdu, China
- National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, China
| | - Chunxia Li
- Department of Neurosurgery, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and the Research Units of West China, Chinese Academy of Medical Sciences, Chengdu, China
| | - Meng Lu
- Department of Neurosurgery, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and the Research Units of West China, Chinese Academy of Medical Sciences, Chengdu, China
| | - Gaoyue Jiang
- Department of Neurosurgery, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and the Research Units of West China, Chinese Academy of Medical Sciences, Chengdu, China
| | - Shanze Chen
- Department of Respiratory and Critical Care Medicine, First Affiliated Hospital of Southern University of Science and Technology, Second Clinical Medical College of Jinan University, Shenzhen People’s Hospital, Shenzhen Institute of Respiratory Diseases, Shenzhen, China
| | - Huihui Li
- West China Second University Hospital, Sichuan University, Chengdu, China
| | - Kefeng Lu
- Department of Neurosurgery, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and the Research Units of West China, Chinese Academy of Medical Sciences, Chengdu, China
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Wang X, Wu Z, Zhang Y, Lian B, Ma L, Zhao J. Autophagy induced by hypoxia in pulpitis is mediated by HIF-1α/BNIP3. Arch Oral Biol 2024; 159:105881. [PMID: 38199116 DOI: 10.1016/j.archoralbio.2024.105881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Revised: 01/01/2024] [Accepted: 01/02/2024] [Indexed: 01/12/2024]
Abstract
OBJECTIVE Hypoxia-inducible factor-1α (HIF-1α) and its downstream factor, 19 kDa BCL-2 interacting protein 3 (BNIP3), promote cellular autophagy under hypoxic conditions. However, their roles in pulpitis are unclear. Therefore, the changes in inflammatory response and autophagy levels caused by hypoxia during pulpitis were evaluated. Additionally, the regulatory mechanism of HIF-1α/BNIP3 in cellular autophagy in pulpitis was explored. DESIGN Pulp from dental pulp tissues of healthy individuals and patients with pulpitis (n = 10) were exposed and combined with a low oxygen simulation chamber to construct pulpitis (n = 6), hypoxia (n = 6), and hypoxia+pulpitis (n = 6) rat models. Hematoxylin and eosin and immunohistochemical staining were used to detect the localization and expression levels of HIF-1α, BNIP3, and autophagy marker protein, LC3B. Transmission electron microscopy was used to confirm autophagosome formation. An in vitro hypoxic model of human dental pulp cells was established, and HIF-1α chemical inhibitor 3-(5'-hydroxymethyl-2'-furyl)- 1-benzylindazole (YC-1) was administered. Immunofluorescence and western blotting were used to detect the localization and protein levels of HIF-1α, BNIP3, and LC3B. RESULTS Autophagy is significantly increased and HIF-1α and BNIP3 are elevated in inflamed dental pulp tissue. Both pulp exposure and hypoxia intervention cause inflammatory reactions in rat dental pulp tissue, accompanied by the autophagy activation. Hypoxia significantly enhances HIF-1α/BNIP3 and autophagy activation. BNIP3 downregulates and autophagy reduces after treatment with YC-1. CONCLUSIONS In pulpitis, activation of the HIF-1α/BNIP3 signaling pathway driven by hypoxia leads to increased autophagy. This provides a new molecular explanation for autophagy activation in apical periodontitis and new insights into the pathogenesis of the disease.
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Affiliation(s)
- Xiaohe Wang
- Department of Cariology and Endodontics, The First Affiliated Hospital of Xinjiang Medical University (The Affiliated Stomatology Hospital of Xinjiang Medical University), No. 137 South Liyushan Road, Urumqi 830054, People's Republic of China; Xinjiang Uygur Autonomous Region Clinical Research Center for Oral Diseases, No.137 South Liyushan Road, Urumqi 830054, People's Republic of China
| | - Zeyu Wu
- Department of Cariology and Endodontics, The First Affiliated Hospital of Xinjiang Medical University (The Affiliated Stomatology Hospital of Xinjiang Medical University), No. 137 South Liyushan Road, Urumqi 830054, People's Republic of China; Xinjiang Uygur Autonomous Region Clinical Research Center for Oral Diseases, No.137 South Liyushan Road, Urumqi 830054, People's Republic of China; Stomatology Disease Institute of Xinjiang Uyghur Autonomous Region, No.137 South Liyushan Road, Urumqi 830054, People's Republic of China
| | - Yangyang Zhang
- Department of Cariology and Endodontics, The First Affiliated Hospital of Xinjiang Medical University (The Affiliated Stomatology Hospital of Xinjiang Medical University), No. 137 South Liyushan Road, Urumqi 830054, People's Republic of China; Xinjiang Uygur Autonomous Region Clinical Research Center for Oral Diseases, No.137 South Liyushan Road, Urumqi 830054, People's Republic of China
| | - Bingjie Lian
- Department of Cariology and Endodontics, The First Affiliated Hospital of Xinjiang Medical University (The Affiliated Stomatology Hospital of Xinjiang Medical University), No. 137 South Liyushan Road, Urumqi 830054, People's Republic of China; Xinjiang Uygur Autonomous Region Clinical Research Center for Oral Diseases, No.137 South Liyushan Road, Urumqi 830054, People's Republic of China; Stomatology Disease Institute of Xinjiang Uyghur Autonomous Region, No.137 South Liyushan Road, Urumqi 830054, People's Republic of China
| | - Li Ma
- Department of Cariology and Endodontics, The First Affiliated Hospital of Xinjiang Medical University (The Affiliated Stomatology Hospital of Xinjiang Medical University), No. 137 South Liyushan Road, Urumqi 830054, People's Republic of China; Xinjiang Uygur Autonomous Region Clinical Research Center for Oral Diseases, No.137 South Liyushan Road, Urumqi 830054, People's Republic of China
| | - Jin Zhao
- Department of Cariology and Endodontics, The First Affiliated Hospital of Xinjiang Medical University (The Affiliated Stomatology Hospital of Xinjiang Medical University), No. 137 South Liyushan Road, Urumqi 830054, People's Republic of China; Xinjiang Uygur Autonomous Region Clinical Research Center for Oral Diseases, No.137 South Liyushan Road, Urumqi 830054, People's Republic of China; Stomatology Disease Institute of Xinjiang Uyghur Autonomous Region, No.137 South Liyushan Road, Urumqi 830054, People's Republic of China.
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Ogasawara D, Konrad DB, Tan ZY, Carey KL, Luo J, Won SJ, Li H, Carter T, DeMeester KE, Njomen E, Schreiber SL, Xavier RJ, Melillo B, Cravatt BF. Chemical tools to expand the ligandable proteome: diversity-oriented synthesis-based photoreactive stereoprobes. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.02.27.582206. [PMID: 38464067 PMCID: PMC10925180 DOI: 10.1101/2024.02.27.582206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
Chemical proteomics enables the global assessment of small molecule-protein interactions in native biological systems and has emerged as a versatile approach for ligand discovery. The range of small molecules explored by chemical proteomics has, however, been limited. Here, we describe a diversity-oriented synthesis (DOS)-inspired library of stereochemically-defined compounds bearing diazirine and alkyne units for UV light-induced covalent modification and click chemistry enrichment of interacting proteins, respectively. We find that these 'photo-stereoprobes' interact in a stereoselective manner with hundreds of proteins from various structural and functional classes in human cells and demonstrate that these interactions can form the basis for high-throughput screening-compatible nanoBRET assays. Integrated phenotypic analysis and chemical proteomics identified photo-stereoprobes that modulate autophagy by engaging the mitochondrial serine protease CLPP. Our findings show the utility of photo-stereoprobes for expanding the ligandable proteome, furnishing target engagement assays, and discovering and characterizing bioactive small molecules by cell-based screening.
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He Z, Shi J, Zhu B, Tian Z, Zhang Z. Transcriptomics analysis revealed that TAZ regulates the proliferation of KIRC cells through mitophagy. BMC Cancer 2024; 24:229. [PMID: 38373978 PMCID: PMC10875871 DOI: 10.1186/s12885-024-11903-9] [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: 08/09/2023] [Accepted: 01/20/2024] [Indexed: 02/21/2024] Open
Abstract
Transcriptional Co-Activator with PDZ-Binding Motif (TAZ, also known as WWTR1) is a downstream effector of the Hippo pathway, involved in the regulation of organ regeneration and cell differentiation in processes such as development and regeneration. TAZ has been shown to play a tumor-promoting role in various cancers. Currently, many studies focus on the role of TAZ in the process of mitophagy. However, the molecular mechanism and biological function of TAZ in renal clear cell carcinoma (KIRC) are still unclear. Therefore, we systematically analyzed the mRNA expression profile and clinical data of KIRC in The Cancer Genome Atlas (TCGA) dataset. We found that TAZ expression was significantly upregulated in KIRC compared with normal kidney tissue and was closely associated with poor prognosis of patients. Combined with the joint analysis of 36 mitophagy genes, it was found that TAZ was significantly negatively correlated with the positive regulators of mitophagy. Finally, our results confirmed that high expression of TAZ in KIRC inhibits mitophagy and promotes KIRC cell proliferation. In conclusion, our findings reveal the important role of TAZ in KIRC and have the potential to be a new target for KIRC therapy.
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Affiliation(s)
- Zhen He
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, China
- Department of Urology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Jianxi Shi
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Bing Zhu
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Zhentao Tian
- Department of Urology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Zhihong Zhang
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin, China.
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Wu Y, Li L, Ning Z, Li C, Yin Y, Chen K, Li L, Xu F, Gao J. Autophagy-modulating biomaterials: multifunctional weapons to promote tissue regeneration. Cell Commun Signal 2024; 22:124. [PMID: 38360732 PMCID: PMC10868121 DOI: 10.1186/s12964-023-01346-3] [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: 08/24/2023] [Accepted: 09/29/2023] [Indexed: 02/17/2024] Open
Abstract
Autophagy is a self-renewal mechanism that maintains homeostasis and can promote tissue regeneration by regulating inflammation, reducing oxidative stress and promoting cell differentiation. The interaction between biomaterials and tissue cells significantly affects biomaterial-tissue integration and tissue regeneration. In recent years, it has been found that biomaterials can affect various processes related to tissue regeneration by regulating autophagy. The utilization of biomaterials in a controlled environment has become a prominent approach for enhancing the tissue regeneration capabilities. This involves the regulation of autophagy in diverse cell types implicated in tissue regeneration, encompassing the modulation of inflammatory responses, oxidative stress, cell differentiation, proliferation, migration, apoptosis, and extracellular matrix formation. In addition, biomaterials possess the potential to serve as carriers for drug delivery, enabling the regulation of autophagy by either activating or inhibiting its processes. This review summarizes the relationship between autophagy and tissue regeneration and discusses the role of biomaterial-based autophagy in tissue regeneration. In addition, recent advanced technologies used to design autophagy-modulating biomaterials are summarized, and rational design of biomaterials for providing controlled autophagy regulation via modification of the chemistry and surface of biomaterials and incorporation of cells and molecules is discussed. A better understanding of biomaterial-based autophagy and tissue regeneration, as well as the underlying molecular mechanisms, may lead to new possibilities for promoting tissue regeneration. Video Abstract.
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Affiliation(s)
- Yan Wu
- Heilongjiang Key Laboratory of Tissue Damage and Repair, Mudanjiang Medical University, Mudanjiang, 157000, China
| | - Luxin Li
- Heilongjiang Key Laboratory of Tissue Damage and Repair, Mudanjiang Medical University, Mudanjiang, 157000, China
| | - Zuojun Ning
- Changhai Clinical Research Unit, Shanghai Changhai Hospital, Naval Medical University, Shanghai, 200433, China
| | - Changrong Li
- Heilongjiang Key Laboratory of Tissue Damage and Repair, Mudanjiang Medical University, Mudanjiang, 157000, China
| | - Yongkui Yin
- Heilongjiang Key Laboratory of Tissue Damage and Repair, Mudanjiang Medical University, Mudanjiang, 157000, China
| | - Kaiyuan Chen
- Heilongjiang Key Laboratory of Tissue Damage and Repair, Mudanjiang Medical University, Mudanjiang, 157000, China
| | - Lu Li
- Department of plastic surgery, Naval Specialty Medical Center of PLA, Shanghai, 200052, China.
| | - Fei Xu
- Department of plastic surgery, Naval Specialty Medical Center of PLA, Shanghai, 200052, China.
| | - Jie Gao
- Changhai Clinical Research Unit, Shanghai Changhai Hospital, Naval Medical University, Shanghai, 200433, China.
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Guo F, Han X, You Y, Xu SJ, Zhang YH, Chen YY, Xin GJ, Liu ZX, Ren JG, Cao C, Li LM, Fu JH. Hydroxysafflor Yellow A Inhibits Pyroptosis and Protecting HUVECs from OGD/R via NLRP3/Caspase-1/GSDMD Pathway. Chin J Integr Med 2024:10.1007/s11655-023-3716-y. [PMID: 38319525 DOI: 10.1007/s11655-023-3716-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/03/2023] [Indexed: 02/07/2024]
Abstract
OBJECTIVE To observe the protective effect and mechanism of hydroxyl safflower yellow A (HSYA) from myocardial ischemia-reperfusion injury on human umbilical vein endothelial cells (HUVECs). METHODS HUVECs were treated with oxygen-glucose deprivation reperfusion (OGD/R) to simulate the ischemia reperfusion model, and cell counting kit-8 was used to detect the protective effect of different concentrations (1.25-160 µ mol/L) of HSYA on HUVECs after OGD/R. HSYA 80 µ mol/L was used for follow-up experiments. The contents of inflammatory cytokines interleukin (IL)-18, IL-1 β, monocyte chemotactic protein 1 (MCP-1), tumor necrosis factor α (TNF-α) and IL-6 before and after administration were measured by enzyme-linked immunosorbent assay. The protein expressions of toll-like receptor, NOD-like receptor containing pyrin domain 3 (NLRP3), gasdermin D (GSDMD) and GSDMD-N-terminal domain (GSDMD-N) before and after administration were detected by Western blot. NLRP3 inflammasome inhibitor cytokine release inhibitory drug 3 sodium salt (CRID3 sodium salt, also known as MCC950) and agonist were added, and the changes of NLRP3, cysteine-aspartic acid protease 1 (Caspase-1), GSDMD and GSDMD-N protein expressions were detected by Western blot. RESULTS HSYA inhibited OGD/R-induced inflammation and significantly decreased the contents of inflammatory cytokines IL-18, IL-1 β, MCP-1, TNF-α and IL-6 (P<0.01 or P<0.05). At the same time, by inhibiting NLRP3/Caspase-1/GSDMD pathway, HSYA can reduce the occurrence of pyroptosis after OGD/R and reduce the expression of NLRP3, Caspase-1, GSDMD and GSDMD-N proteins (P<0.01). CONCLUSIONS The protective effect of HSYA on HUVECs after OGD/R is related to down-regulating the expression of NLRP3 inflammasome and inhibiting pyroptosis.
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Affiliation(s)
- Fan Guo
- Institute of Basic Medical Sciences of Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 100091, China
- Beijing Key Laboratory of Chinese Materia Pharmacology, Beijing, 100091, China
| | - Xiao Han
- Institute of Basic Medical Sciences of Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 100091, China
- Beijing Key Laboratory of Chinese Materia Pharmacology, Beijing, 100091, China
| | - Yue You
- Institute of Basic Medical Sciences of Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 100091, China
- Beijing Key Laboratory of Chinese Materia Pharmacology, Beijing, 100091, China
| | - Shu-Juan Xu
- Institute of Basic Medical Sciences of Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 100091, China
- Beijing Key Laboratory of Chinese Materia Pharmacology, Beijing, 100091, China
| | - Ye-Hao Zhang
- Institute of Basic Medical Sciences of Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 100091, China
- Beijing Key Laboratory of Chinese Materia Pharmacology, Beijing, 100091, China
| | - Yuan-Yuan Chen
- Institute of Basic Medical Sciences of Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 100091, China
- Beijing Key Laboratory of Chinese Materia Pharmacology, Beijing, 100091, China
| | - Gao-Jie Xin
- Institute of Basic Medical Sciences of Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 100091, China
- Beijing Key Laboratory of Chinese Materia Pharmacology, Beijing, 100091, China
| | - Zi-Xin Liu
- Institute of Basic Medical Sciences of Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 100091, China
- Beijing Key Laboratory of Chinese Materia Pharmacology, Beijing, 100091, China
| | - Jun-Guo Ren
- Institute of Basic Medical Sciences of Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 100091, China
- Beijing Key Laboratory of Chinese Materia Pharmacology, Beijing, 100091, China
| | - Ce Cao
- Institute of Basic Medical Sciences of Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 100091, China
- Beijing Key Laboratory of Chinese Materia Pharmacology, Beijing, 100091, China
| | - Ling-Mei Li
- Institute of Basic Medical Sciences of Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 100091, China.
- Beijing Key Laboratory of Chinese Materia Pharmacology, Beijing, 100091, China.
- Department of Central Laboratory, Kunshan Hospital of Chinese Medicine, Kunshan, Jiangsu Province, 215300, China.
| | - Jian-Hua Fu
- Institute of Basic Medical Sciences of Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 100091, China
- Beijing Key Laboratory of Chinese Materia Pharmacology, Beijing, 100091, China
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Li Y, Wang Y, Li T, Li Z, Guo T, Xue G, Duan Y, Yao Y. Sesquiterpene from Artemisia argyi seed extracts: A new anti-acute peritonitis agent that suppresses the MAPK pathway and promotes autophagy. Inflammopharmacology 2024; 32:447-460. [PMID: 37578619 DOI: 10.1007/s10787-023-01297-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 07/10/2023] [Indexed: 08/15/2023]
Abstract
To find novel anti-inflammatory drugs, we screened anti-inflammatory compounds from 18 different types of Artemisia argyi seed extracts. The in vitro and in vivo anti-inflammatory activities of the screened compounds and their mechanisms were characterized. We first detected the cytotoxic effect of the compounds on RAW264.7 cells and the inhibitory effect on LPS-induced NO release. It was found that sesquiterpenoids CA-2 and CA-4 had low cytotoxic and strong NO inhibitory activity with an IC50 of 4.22 ± 0.61 μM and 2.98 ± 0.23 μM for NO inhibition, respectively. Therefore, compound CA-4 was studied in depth. We found that compound CA-4 inhibited LPS-induced pro-inflammatory factor production and M1 macrophage differentiation in RAW264.7 cells. Additionally, CA-4 inhibited the expression of p-ERK1/2, p-JNK, iNOS, and COX-2 by blocking the MAPK signaling pathway. CA-4 also promoted the expression of autophagy-related proteins such as LC3 II and Beclin-1 by inhibiting activation of the PI3K/AKT/mTOR signaling pathway, and promoted the generation of autophagosomes. Finally, CA-4 significantly inhibited the degree of inflammation in mice with acute peritonitis, showing good anti-inflammatory activity in vivo. Consequently, compound CA-4 may be a promising drug for the treatment of acute inflammatory diseases and provide new ideas for the synthesis of novel anti-inflammatory compounds.
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Affiliation(s)
- Yinchao Li
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, Henan, China
| | - Yuanhui Wang
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, Henan, China
| | - Tianxin Li
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, Henan, China
| | - Zhenzhen Li
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, Henan, China
| | - Tao Guo
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China
| | - Guimin Xue
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China.
| | - Yongtao Duan
- Henan Provincial Key Laboratory of Children's Genetics and Metabolic Diseases, Children's Hospital Affiliated to Zhengzhou University, Zhengzhou University, Zhengzhou, 450018, China.
| | - Yongfang Yao
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, Henan, China.
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, China.
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450052, China.
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42
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Wang C, Zhuo JJ, Li WQ, Zhou ML, Cheng KJ. Role of autophagy and mitophagy of group 2 innate lymphoid cells in allergic and local allergic rhinitis. World Allergy Organ J 2024; 17:100852. [PMID: 38298830 PMCID: PMC10827603 DOI: 10.1016/j.waojou.2023.100852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 11/14/2023] [Accepted: 12/07/2023] [Indexed: 02/02/2024] Open
Abstract
Background Roles of ILC2s in allergic rhinitis (AR) and local allergic rhinitis (LAR) are unclear. In this study, we are determined to find the levels of autophagy and mitophagy of ILC2s in allergic nasal inflammation. Methods ELISA was used to detect type 2 inflammatory cytokines. Hematoxylin and eosin (H&E) staining were used to compare the eosinophil (EOS) infiltration of nasal tissue specimens. Flow cytometry was used to detect the levels of ILC2s and Th2 cells. Immunohistochemistry (IHC) and Western blot (WB) were used to detect the levels of Beclin1, LC3, p62, PINK1, Parkin, FUNDC1, and BNIP3 in nasal mucosa. The levels of autophagy related proteins and mitophagy related proteins of the ILC2s were detected by WB. The number of autophagosomes of ILC2s was observed by transmission electron microscopy. The co-localization levels of GFP-LC3 and Mito tracker in ILC2s were observed by confocal microscopy using immunofluorescence. Results We found that the level of type 2 inflammation in AR and LAR mice was significantly increased. The levels of autophagy and mitophagy of AR and LAR mice in nasal mucosa and ILC2s were both increased. Conclusions ILC2s may be associated with the occurrence and development of nasal allergic inflammation. The abnormal increase of autophagy and mitophagy levels in the nose may be associated with the incidence of AR and LAR. Abnormal autophagy and mitophagy levels of ILC2s cells may be one of the causes of allergic nasal inflammation.
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Affiliation(s)
- Chen Wang
- Department of Otolaryngology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Jin-Jing Zhuo
- Department of Otolaryngology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Wen-Qian Li
- Department of Otolaryngology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Min-Li Zhou
- Department of Otolaryngology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Ke-Jia Cheng
- Department of Otolaryngology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
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43
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Khorasani M, Alaei M. cGAS-STING and PD1/PDL-1 pathway in breast cancer: a window to new therapies. J Recept Signal Transduct Res 2024; 44:1-7. [PMID: 38470108 DOI: 10.1080/10799893.2024.2325353] [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: 10/30/2023] [Accepted: 02/23/2024] [Indexed: 03/13/2024]
Abstract
Breast cancer is a complex malignancy with diverse molecular and cellular subtypes and clinical outcomes. Despite advances in treatment, breast cancer remains a significant health challenge. However, recent advances in cancer immunotherapy have shown promising results in the treatment of breast cancer, particularly the use of inhibitors that target the immune checkpoint PD1/PDL1. Also, the cGAS-STING pathway, an important part of the innate immune response, has been considered as a major potential therapeutic target for breast cancer. In this narrative review, we provide an overview of the cGAS-STING and PD1/PDL-1 pathway in breast cancer, including their role in tumor development, progression, and response to treatment. We also discuss potential future directions for research.
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Affiliation(s)
- Milad Khorasani
- Healthy Ageing Research Centre, Neyshabur University of Medical Sciences, Neyshabur, Iran
- Department of Clinical Biochemistry, Neyshabur University of Medical Sciences, Neyshabur, Iran
| | - Maryam Alaei
- Department of Clinical Biochemistry, Mashhad University of Medical Sciences, Mashhad, Iran
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Meng M, Wang J, Li H, Wang J, Wang X, Li M, Gao X, Li W, Ma C, Wei L. Eliminating the invading extracellular and intracellular FnBp + bacteria from respiratory epithelial cells by autophagy mediated through FnBp-Fn-Integrin α5β1 axis. Front Cell Infect Microbiol 2024; 13:1324727. [PMID: 38264727 PMCID: PMC10803403 DOI: 10.3389/fcimb.2023.1324727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 12/18/2023] [Indexed: 01/25/2024] Open
Abstract
Background We previously found that the respiratory epithelial cells could eliminate the invaded group A streptococcus (GAS) through autophagy induced by binding a fibronectin (Fn) binding protein (FnBp) expressed on the surface of GAS to plasma protein Fn and its receptor integrin α5β1 of epithelial cells. Is autophagy initiated by FnBp+ bacteria via FnBp-Fn-Integrin α5β1 axis a common event in respiratory epithelial cells? Methods We chose Staphylococcus aureus (S. aureus/S. a) and Listeria monocytogenes (L. monocytogenes/L. m) as representatives of extracellular and intracellular FnBp+ bacteria, respectively. The FnBp of them was purified and the protein function was confirmed by western blot, viable bacteria count, confocal and pull-down. The key molecule downstream of the action axis was detected by IP, mass spectrometry and bio-informatics analysis. Results We found that different FnBp from both S. aureus and L. monocytogenes could initiate autophagy through FnBp-Fn-integrin α5β1 axis and this could be considered a universal event, by which host tries to remove invading bacteria from epithelial cells. Importantly, we firstly reported that S100A8, as a key molecule downstream of integrin β1 chain, is highly expressed upon activation of integrin α5β1, which in turn up-regulates autophagy. Conclusions Various FnBp from FnBp+ bacteria have the ability to initiate autophagy via FnBp-Fn-Integrin α5β1 axis to promote the removal of invading bacteria from epithelial cells in the presence of fewer invaders. S100A8 is a key molecule downstream of Integrin α5β1 in this autophagy pathway.
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Affiliation(s)
- Meiqi Meng
- Department of Immunology, Key Laboratory of Immune Mechanism and Intervention on Serious Disease in Hebei, Hebei Medical University, Shijiazhuang, China
| | - Jiachao Wang
- Department of Immunology, Key Laboratory of Immune Mechanism and Intervention on Serious Disease in Hebei, Hebei Medical University, Shijiazhuang, China
| | - Hongru Li
- Department of Immunology, Key Laboratory of Immune Mechanism and Intervention on Serious Disease in Hebei, Hebei Medical University, Shijiazhuang, China
| | - Jiao Wang
- Department of Immunology, Key Laboratory of Immune Mechanism and Intervention on Serious Disease in Hebei, Hebei Medical University, Shijiazhuang, China
| | - Xuan Wang
- Department of Immunology, Key Laboratory of Immune Mechanism and Intervention on Serious Disease in Hebei, Hebei Medical University, Shijiazhuang, China
- Clinical Laboratory, the Second Hospital of Hebei Medical University, Hebei Key Laboratory of Laboratory Medicine, Shijiazhuang, China
| | - Miao Li
- Department of Immunology, Key Laboratory of Immune Mechanism and Intervention on Serious Disease in Hebei, Hebei Medical University, Shijiazhuang, China
| | - Xue Gao
- Department of Immunology, Key Laboratory of Immune Mechanism and Intervention on Serious Disease in Hebei, Hebei Medical University, Shijiazhuang, China
| | - Wenjian Li
- Department of Immunology, Key Laboratory of Immune Mechanism and Intervention on Serious Disease in Hebei, Hebei Medical University, Shijiazhuang, China
| | - Cuiqing Ma
- Department of Immunology, Key Laboratory of Immune Mechanism and Intervention on Serious Disease in Hebei, Hebei Medical University, Shijiazhuang, China
| | - Lin Wei
- Department of Immunology, Key Laboratory of Immune Mechanism and Intervention on Serious Disease in Hebei, Hebei Medical University, Shijiazhuang, China
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Gao X, Su G, Chai M, Shen M, Hu Z, Chen W, Gao J, Li R, Ma T, An Y, Zhang Z. Research progress on mechanisms of ischemic stroke: Regulatory pathways involving Microglia. Neurochem Int 2024; 172:105656. [PMID: 38081419 DOI: 10.1016/j.neuint.2023.105656] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 11/19/2023] [Accepted: 12/04/2023] [Indexed: 12/17/2023]
Abstract
Microglia, as the intrinsic immune cells in the brain, are activated following ischemic stroke. Activated microglia participate in the pathological processes after stroke through polarization, autophagy, phagocytosis, pyroptosis, ferroptosis, apoptosis, and necrosis, thereby influencing the injury and repair following stroke. It has been established that polarized M1 and M2 microglia exhibit pro-inflammatory and anti-inflammatory effects, respectively. Autophagy and phagocytosis in microglia following ischemia are dynamic processes, where moderate levels promote cell survival, while excessive responses may exacerbate neurofunctional deficits following stroke. Additionally, pyroptosis and ferroptosis in microglia after ischemic stroke contribute to the release of harmful cytokines, further aggravating the damage to brain tissue due to ischemia. This article discusses the different functional states of microglia in ischemic stroke research, highlighting current research trends and gaps, and provides insights and guidance for further study of ischemic stroke.
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Affiliation(s)
- Xin Gao
- Department of Neurology, Lanzhou University Second Hospital, Lanzhou, Gansu, 730030, China
| | - Gang Su
- Institute of Genetics, School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu, 730030, China
| | - Miao Chai
- Department of Neurology, Lanzhou University Second Hospital, Lanzhou, Gansu, 730030, China
| | - Minghui Shen
- Medical Laboratories, Lanzhou University Second Hospital, Lanzhou, Gansu, 730030, China
| | - Zhenzhen Hu
- Department of Neurology, Lanzhou University Second Hospital, Lanzhou, Gansu, 730030, China
| | - Wei Chen
- Department of Neurology, Lanzhou University Second Hospital, Lanzhou, Gansu, 730030, China
| | - Juan Gao
- Department of Neurology, Lanzhou University Second Hospital, Lanzhou, Gansu, 730030, China
| | - Ruixin Li
- Department of Neurology, Lanzhou University Second Hospital, Lanzhou, Gansu, 730030, China
| | - Tianfei Ma
- Department of Neurology, Lanzhou University Second Hospital, Lanzhou, Gansu, 730030, China
| | - Yang An
- Department of Neurology, Lanzhou University Second Hospital, Lanzhou, Gansu, 730030, China
| | - Zhenchang Zhang
- Department of Neurology, Lanzhou University Second Hospital, Lanzhou, Gansu, 730030, China.
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46
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McCormick JJ, McManus MK, King KE, Goulet N, Kenny GP. The intensity-dependent effects of exercise and superimposing environmental heat stress on autophagy in peripheral blood mononuclear cells from older men. Am J Physiol Regul Integr Comp Physiol 2024; 326:R29-R42. [PMID: 37955130 DOI: 10.1152/ajpregu.00163.2023] [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: 06/30/2023] [Revised: 10/31/2023] [Accepted: 11/01/2023] [Indexed: 11/14/2023]
Abstract
Autophagy is a vital cellular process, essential to maintaining cellular function during acute physiological stressors including exercise and heat stress. We previously showed that autophagy occurs during exercise in an intensity-dependent manner in peripheral blood mononuclear cells (PBMCs) from young men, with elevated responses in the heat. However, given autophagy declines with age, it is unclear whether a similar pattern of response occurs in older adults. Therefore, we evaluated autophagy and the cellular stress response [i.e., apoptosis, inflammation, and the heat shock response (HSR)] in PBMCs from 10 healthy older men [mean (SD): aged 70 yr (5)] in response to 30 min of semirecumbent cycling at low, moderate, and vigorous intensities [40, 55, and 70% maximal oxygen consumption (V̇o2max), respectively] in a temperate (25°C) environment, with an additional vigorous-intensity bout (70% of V̇o2max) performed in a hot environment (40°C). Responses were evaluated before and after exercise, as well as throughout a 6-h seated recovery period performed in the same environmental conditions as the respective exercise bout. Proteins were assessed via Western blot. Although we observed elevations in mean body temperature with each increase in exercise intensity, autophagy was only stimulated during vigorous-intensity exercise, where we observed elevations in LC3-II (P < 0.05). However, when the same exercise was performed in the heat, the LC3-II response was attenuated, which was accompanied by significant p62 accumulation (P < 0.05). Altogether, our findings demonstrate that older adults exhibit autophagic impairments when the same vigorous-intensity exercise is performed in hot environments, potentially underlying heat-induced cellular vulnerability in older men.NEW & NOTEWORTHY We demonstrate that autophagic stimulation occurs in response to short-duration (30-min) vigorous-intensity exercise in peripheral blood mononuclear cells from older adults; however, no changes in autophagy occur during low- or moderate-intensity exercise. Moreover, older adults exhibit autophagic impairments when the same vigorous-intensity exercise is performed in hot ambient conditions. When paired with an attenuated heat shock response, as well as elevated apoptotic responses, older men may exhibit greater cellular vulnerability to exertional heat stress.
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Affiliation(s)
- James J McCormick
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada
| | - Morgan K McManus
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada
| | - Kelli E King
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada
| | - Nicholas Goulet
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada
| | - Glen P Kenny
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
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Kuczyńska M, Moskot M, Gabig-Cimińska M. Insights into Autophagic Machinery and Lysosomal Function in Cells Involved in the Psoriatic Immune-Mediated Inflammatory Cascade. Arch Immunol Ther Exp (Warsz) 2024; 72:aite-2024-0005. [PMID: 38409665 DOI: 10.2478/aite-2024-0005] [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: 10/06/2023] [Accepted: 12/08/2023] [Indexed: 02/28/2024]
Abstract
Impaired autophagy, due to the dysfunction of lysosomal organelles, contributes to maladaptive responses by pathways central to the immune system. Deciphering the immune-inflammatory ecosystem is essential, but remains a major challenge in terms of understanding the mechanisms responsible for autoimmune diseases. Accumulating evidence implicates a role that is played by a dysfunctional autophagy-lysosomal pathway (ALP) and an immune niche in psoriasis (Ps), one of the most common chronic skin diseases, characterized by the co-existence of autoimmune and autoinflammatory responses. The dysregulated autophagy associated with the defective lysosomal system is only one aspect of Ps pathogenesis. It probably cannot fully explain the pathomechanism involved in Ps, but it is likely important and should be seriously considered in Ps research. This review provides a recent update on discoveries in the field. Also, it sheds light on how the dysregulation of intracellular pathways, coming from modulated autophagy and endolysosomal trafficking, characteristic of key players of the disease, i.e., skin-resident cells, as well as circulating immune cells, may be responsible for immune impairment and the development of Ps.
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Affiliation(s)
- Martyna Kuczyńska
- Department of Medical Biology and Genetics, University of Gdańsk, Gdańsk, Poland
| | - Marta Moskot
- Department of Medical Biology and Genetics, University of Gdańsk, Gdańsk, Poland
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Proikas-Cezanne T, Thumm M. Autophagy-from yeast to humans: Thirty years of molecular autophagy. FEBS Lett 2024; 598:3-6. [PMID: 38206618 DOI: 10.1002/1873-3468.14796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 12/21/2023] [Accepted: 12/15/2023] [Indexed: 01/12/2024]
Affiliation(s)
- Tassula Proikas-Cezanne
- Interfaculty Institute of Cell Biology, Department of Biology, Faculty of Science Eberhard Karls University, Tübingen, Germany
| | - Michael Thumm
- Institute of Cellular Biochemistry, Goettingen University Medical Centre, Goettingen, Germany
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Elbialy A, Kitauchi M, Yamanouchi D. Antioxidants and azd0156 Rescue Inflammatory Response in Autophagy-Impaired Macrophages. Int J Mol Sci 2023; 25:169. [PMID: 38203340 PMCID: PMC10779076 DOI: 10.3390/ijms25010169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/14/2023] [Accepted: 12/17/2023] [Indexed: 01/12/2024] Open
Abstract
Autophagy is a lysosomal degradation system that eliminates and recycles damaged intracellular organelles and proteins. Inflammatory macrophages play a critical role in the development of various age-related inflammatory illnesses such as abdominal aortic aneurysm, atherosclerosis, and rheumatoid arthritis; therefore, identifying the mechanisms that cause macrophage inflammation is crucial for a better understanding of and developing therapeutics for inflammatory diseases. Previous research has linked autophagy to macrophage inflammation; Atg16L1-deficient macrophages increase IL-1 and IL-18 production via inflammasome activation. In this study, however, we show an alternative pathway of macrophage inflammation in an autophagy-deficient environment. We found that inhibiting autophagy in THP1 macrophages progressively increased the expression of p65-mediated inflammatory genes. This effect was reversed by treatment with antioxidants or azd0156, an ataxia telangiectasia mutated (ATM) inhibitor. In addition, our results showed that M1 macrophages inhibit autophagy and induce DNA damage, whereas M2 macrophages activate autophagy and reduce DNA damage. Importantly, the chemical activation of autophagy or ATM inhibition during M1 polarization reduced the M1 phenotype and inflammation, whereas inhibiting autophagy during M2 polarization also reduced the M2 phenotype. Thus, our findings highlight the importance of the autophagy-ATM pathway in driving macrophage inflammation.
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Affiliation(s)
| | | | - Dai Yamanouchi
- Division of Vascular Surgery, Department of Surgery, University of Wisconsin School of Medicine and Public Health, 1111 Highland Avenue, WIMR 5151, Madison, WI 53705, USA; (A.E.); (M.K.)
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Chang H, Wu H, Hou P, Aizaz M, Yang R, Xiang A, Qi W, He H, Wang H. DLG1 promotes the antiviral innate immune response by inhibiting p62-mediated autophagic degradation of IKKε. J Virol 2023; 97:e0150123. [PMID: 37982618 PMCID: PMC10734446 DOI: 10.1128/jvi.01501-23] [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: 09/25/2023] [Accepted: 10/15/2023] [Indexed: 11/21/2023] Open
Abstract
IMPORTANCE The type-I interferon (IFN-I) signaling pathway is the first line of antiviral innate immunity. It must be precisely regulated against virus-induced damage. The tightly regulated mechanisms of action of host genes in the antiviral innate immune signaling pathway are still worth studying. Here, we report a novel role of DLG1 in positively regulating the IκB kinase epsilon (IKKε)-mediated IFN-I signaling response against negative-stranded RNA virus replication, whereas the RNA virus inhibits the expression of DLG1 for immune escape. Importantly, the E3 ligase March2 interacts with and promotes K27-linked polyubiquitination of IKKε, and p62 is a cargo receptor that recognizes ubiquitinated IKKε for eventual autophagic degradation. Together, the current findings elucidate the role of DLG1 in the antiviral IFN-I signaling pathway and viral infection repression.
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Affiliation(s)
- Huasong Chang
- Ruminant Diseases Research Center, College of Life Sciences, Shandong Normal University, Jinan, Shandong, China
| | - Hao Wu
- Ruminant Diseases Research Center, College of Life Sciences, Shandong Normal University, Jinan, Shandong, China
| | - Peili Hou
- Ruminant Diseases Research Center, College of Life Sciences, Shandong Normal University, Jinan, Shandong, China
| | - Muhammad Aizaz
- Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, Jinan, China
| | - Rukun Yang
- Ruminant Diseases Research Center, College of Life Sciences, Shandong Normal University, Jinan, Shandong, China
| | - Aibiao Xiang
- Ruminant Diseases Research Center, College of Life Sciences, Shandong Normal University, Jinan, Shandong, China
| | - Wenjing Qi
- Ruminant Diseases Research Center, College of Life Sciences, Shandong Normal University, Jinan, Shandong, China
| | - Hongbin He
- Ruminant Diseases Research Center, College of Life Sciences, Shandong Normal University, Jinan, Shandong, China
| | - Hongmei Wang
- Ruminant Diseases Research Center, College of Life Sciences, Shandong Normal University, Jinan, Shandong, China
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