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Xing R, Liu R, Man Y, Liu C, Zhang Y, Gao H, Yang W. MAPK13 phosphorylates PHGDH and promotes its degradation via chaperone-mediated autophagy during liver injury. Cell Discov 2025; 11:15. [PMID: 39962071 PMCID: PMC11832932 DOI: 10.1038/s41421-024-00758-w] [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: 07/09/2024] [Accepted: 10/29/2024] [Indexed: 02/20/2025] Open
Abstract
Drug-induced liver injury (DILI) is the leading cause of acute liver failure and poses a significant clinical challenge in both diagnosis and treatment. Serine synthesis pathway (SSP) links glycolysis to one-carbon cycle and plays an important role in cell homeostasis by regulating substance synthesis, redox homeostasis and gene expression. However, the regulatory mechanism of SSP in DILI remains unclear. Phosphoglycerate dehydrogenase (PHGDH) is the rate-limiting enzyme in SSP. Here we show that during DILI, mitogen-activated protein kinase 13 (MAPK13) is activated and then phosphorylates PHGDH at serine 371 upon oxidative stress, which triggers PHGDH protein degradation via chaperone-mediated autophagy (CMA) pathway. PHGDH degradation suppresses SSP and glutathione production, thereby exacerbating DILI and cholestatic liver injury. Importantly, both MAPK13 inhibition and dietary serine supplementation ameliorates these liver injuries. Our finding demonstrates a unique regulatory mechanism of SSP, in which MAPK13 phosphorylates PHGDH and promotes its CMA degradation, establishes its critical role in DILI and cholestatic liver injury, and highlights the therapeutic potential of MAPK13 inhibitor or dietary serine to treat these liver injuries.
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Affiliation(s)
- Ru Xing
- Key Laboratory of Multi-cell Systems, Shanghai Key Laboratory of Molecular Andrology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Ruilong Liu
- Ben May Department for Cancer Research, The University of Chicago, Chicago, IL, USA
| | - Yongxiao Man
- Key Laboratory of Multi-cell Systems, Shanghai Key Laboratory of Molecular Andrology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Chen Liu
- Key Laboratory of Multi-cell Systems, Shanghai Key Laboratory of Molecular Andrology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Yajuan Zhang
- Shanghai Institute of Thoracic Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hong Gao
- Key Laboratory of Multi-cell Systems, Shanghai Key Laboratory of Molecular Andrology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Weiwei Yang
- Key Laboratory of Multi-cell Systems, Shanghai Key Laboratory of Molecular Andrology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China.
- Key Laboratory of Systems Health Science of Zhejiang Province, School of Life Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, Zhejiang, China.
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2
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Li X, Hou R, Ding H, Gao X, Wei Z, Qi T, Fang L. Mollugin ameliorates murine allergic airway inflammation by inhibiting Th2 response and M2 macrophage activation. Eur J Pharmacol 2023; 946:175630. [PMID: 36871665 DOI: 10.1016/j.ejphar.2023.175630] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 02/19/2023] [Accepted: 02/27/2023] [Indexed: 03/06/2023]
Abstract
Mollugin, isolated from Rubia cordifolia L, is a pharmacological compound with anti-inflammatory activity. This study aimed to investigate whether mollugin protects mice against shrimp tropomyosin (ST)-induced allergic airway inflammation. Mice were sensitized with ST combined with Al(OH)3 administered intraperitoneally (i.p.) once weekly for 3 wk followed by ST challenge for 5 d. Mice were i.p.-administered daily with mollugin for 7 d. Results showed that mollugin attenuated ST-induced infiltration of eosinophils and epithelial mucus secretion in the lung tissues and suppressed lung eosinophil peroxidase activity. Additionally, mollugin lowered the Th2 cytokine, IL-4 and IL-5, production and downregulated the mRNA levels of Il-4, Il-5, Il-13, eotaxin, Ccl-17, Muc5ac, arginase-1, Ym-1, and Fizz-1 in the lung tissues. Network pharmacology was employed to predict core targets, and the molecular docking approach was used to verify the compound targets. The results of the molecular docking study of mollugin into p38 MAPK or poly(ADP-ribose) polymerase 1 (PARP1) binding sites revealed that its mechanism was possibly similar to that of SB203580 (a p38 MAPK inhibitor) or olaparib (a PARP1 inhibitor). Immunohistochemistry analysis revealed that mollugin mitigated ST-induced elevation of arginase-1 expression and macrophage levels in the lungs and bronchoalveolar lavage fluid, respectively. Furthermore, arginase-1 mRNA level and phosphorylation of p38 MAPK were inhibited in IL-4-stimulated peritoneal macrophages. In ST-stimulated mouse primary splenocytes, mollugin notably inhibited IL-4 and IL-5 production and downregulated PARP1 and PAR protein expression. According to our findings, mollugin ameliorated allergic airway inflammation by inhibiting Th2 response and macrophage polarization.
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Affiliation(s)
- Xiuru Li
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225009, China
| | - Ruitao Hou
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225009, China
| | - Hao Ding
- Baoying People's Hospital, Yangzhou, 225800, China; Baoying Maternal and Child Health Hospital, Yangzhou, 225800, China
| | - Xiang Gao
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225009, China
| | - Zichen Wei
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225009, China
| | - Ting Qi
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225009, China
| | - Lei Fang
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225009, China; Jiangsu Key Laboratory of Experimental & Translational Non-coding RNA Research, Yangzhou University Medical College, Yangzhou, 225009, China.
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3
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Sun L, Zhang H, Zhang H, Lou X, Wang Z, Wu Y, Yang X, Chen D, Guo B, Zhang A, Qian F. Staphylococcal virulence factor HlgB targets the endoplasmic-reticulum-resident E3 ubiquitin ligase AMFR to promote pneumonia. Nat Microbiol 2023; 8:107-120. [PMID: 36593296 DOI: 10.1038/s41564-022-01278-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 10/21/2022] [Indexed: 01/03/2023]
Abstract
Staphylococcus aureus invades cells and persists intracellularly, causing persistent inflammation that is notoriously difficult to treat. Here we investigated host-pathogen interactions underlying intracellular S. aureus infection in macrophages and discovered that the endoplasmic reticulum (ER) is an important cellular compartment for intracellular S. aureus infection. Using CRISPR-Cas9 guide RNA library screening, we determined that the autocrine motility factor receptor (AMFR), an ER-resident E3 ubiquitin ligase, played an essential role in mediating intracellular S. aureus-induced inflammation. AMFR directly interacted with TAK1-binding protein 3 (TAB3) in the ER, inducing K27-linked polyubiquitination of TAB3 on lysine 649 and promoting TAK1 activation. Moreover, the virulence factor γ-haemolysin B (HIgB) of S. aureus bound to the AMFR and regulated TAB3. Our findings highlight an unknown role of AMFR in intracellular S. aureus infection-induced pneumonia and suggest that pharmacological interruption of AMFR-mediated TAB3 signalling cascades and HIgB targeting may prevent invasive staphylococci-mediated pneumonia.
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Affiliation(s)
- Lei Sun
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, Pharm-X Center, Research Center for Small Molecule Immunological Drugs, School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China.
| | - Haibo Zhang
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, Pharm-X Center, Research Center for Small Molecule Immunological Drugs, School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Huihui Zhang
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, Pharm-X Center, Research Center for Small Molecule Immunological Drugs, School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Xinyi Lou
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, Pharm-X Center, Research Center for Small Molecule Immunological Drugs, School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Zhiming Wang
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, Pharm-X Center, Research Center for Small Molecule Immunological Drugs, School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Yaxian Wu
- Department of Basic Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Xinyi Yang
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, Pharm-X Center, Research Center for Small Molecule Immunological Drugs, School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Daijie Chen
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, Pharm-X Center, Research Center for Small Molecule Immunological Drugs, School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Beining Guo
- Institute of Antibiotics, Huashan Hospital, Fudan University, Shanghai, China
| | - Ao Zhang
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, Pharm-X Center, Research Center for Small Molecule Immunological Drugs, School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Feng Qian
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, Pharm-X Center, Research Center for Small Molecule Immunological Drugs, School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China.
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Huang C, Leng D, Zheng P, Deng M, Li L, Wu G, Sun B, Zhang XD. Comprehensive transcriptome analysis of peripheral blood unravels key lncRNAs implicated in ABPA and asthma. PeerJ 2021; 9:e11453. [PMID: 34221710 PMCID: PMC8236232 DOI: 10.7717/peerj.11453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 04/23/2021] [Indexed: 11/20/2022] Open
Abstract
Allergic bronchopulmonary aspergillosis (ABPA) is a complex hypersensitivity lung disease caused by a fungus known as Aspergillus fumigatus. It complicates and aggravates asthma. Despite their potential associations, the underlying mechanisms of asthma developing into ABPA remain obscure. Here we performed an integrative transcriptome analysis based on three types of human peripheral blood, which derived from ABPA patients, asthmatic patients and health controls, aiming to identify crucial lncRNAs implicated in ABPA and asthma. Initially, a high-confidence dataset of lncRNAs was identified using a stringent filtering pipeline. A comparative mutational analysis revealed no significant difference among these samples. Differential expression analysis disclosed several immune-related mRNAs and lncRNAs differentially expressed in ABPA and asthma. For each disease, three sub-networks were established using differential network analysis. Many key lncRNAs implicated in ABPA and asthma were identified, respectively, i.e., AL139423.1-201, AC106028.4-201, HNRNPUL1-210, PUF60-218 and SREBF1-208. Our analysis indicated that these lncRNAs exhibits in the loss-of-function networks, and the expression of which were repressed in the occurrences of both diseases, implying their important roles in the immune-related processes in response to the occurrence of both diseases. Above all, our analysis proposed a new point of view to explore the relationship between ABPA and asthma, which might provide new clues to unveil the pathogenic mechanisms for both diseases.
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Affiliation(s)
- Chen Huang
- Dr. Neher's Biophysics Laboratory for Innovative Drug Discovery, Macau University of Science and Technology, Macau, SAR, China, Macau, China.,Stat Key laboratory of Quality Research in Chinese Medicine, Macau Institute For Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, SAR, China, Macau, China
| | - Dongliang Leng
- Faculty of Health and Science, University of Macau, Macao, Macau
| | - Peiyan Zheng
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, National Clinical Research Center of Respiratory Disease, Guangzhou Institute of Respiratory, Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Min Deng
- Faculty of Health and Science, University of Macau, Macao, Macau
| | - Lu Li
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, National Clinical Research Center of Respiratory Disease, Guangzhou Institute of Respiratory, Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Ge Wu
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, National Clinical Research Center of Respiratory Disease, Guangzhou Institute of Respiratory, Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Baoqing Sun
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, National Clinical Research Center of Respiratory Disease, Guangzhou Institute of Respiratory, Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
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Wang J, Sun L, Nie Y, Duan S, Zhang T, Wang W, Ye RD, Hou S, Qian F. Protein Kinase C δ (PKCδ) Attenuates Bleomycin Induced Pulmonary Fibrosis via Inhibiting NF-κB Signaling Pathway. Front Physiol 2020; 11:367. [PMID: 32390869 PMCID: PMC7188947 DOI: 10.3389/fphys.2020.00367] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Accepted: 03/30/2020] [Indexed: 12/21/2022] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a chronic, progressive and lethal interstitial lung disease characterized by consistent pulmonary inflammation. Although protein kinase C delta (PKCδ) is involved in broad scope cellular response, the role of PKCδ in IPF is complicated and has not been fully defined yet. Here, we reported that PKCδ deficiency (PKCδ-/-) aggravated bleomycin (BLM)-induced pulmonary fibrosis and inflammation. Upon challenge with BLM, the pulmonary capillary permeability, immune cell infiltration, inflammatory cytokine production, and collagen deposition were enhanced in PKCδ-/- mice compared to that in PKCδ+/+ mice. In response to poly(I:C) stimulation, PKCδ deficient macrophages displayed an increased production of IL-1β, IL-6, TNF-α, and IL-33, which were associated with an enhanced NF-κB activation. Furthermore, we found that PKCδ could directly bind to and phosphorylate A20, an inhibitory protein of NF-κB signal. These results suggested that PKCδ may inhibit the NF-κB signaling pathway via enhancing the stability and activity of A20, which in turn attenuates pulmonary fibrosis, suggesting that PKCδ is a promising target for treating pulmonary fibrosis.
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Affiliation(s)
- Jun Wang
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Lei Sun
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Yunjuan Nie
- Department of Basic Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Shixin Duan
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Tao Zhang
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Weiwei Wang
- College of Pharmacy and Chemistry, Dali University, Dali, China
| | - Richard D Ye
- School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen, China
| | - Shangwei Hou
- Hongqiao International Institute of Medicine, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Feng Qian
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China.,Anhui Province Key Laboratory of Translational Cancer Research, Bengbu Medical College, Bengbu, China
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