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Dong Y, Dong Y, Zhu C, Yang L, Wang H, Li J, Zheng Z, Zhao H, Xie W, Chen M, Jie Z, Li J, Zang Y, Shi J. Targeting CCL2-CCR2 signaling pathway alleviates macrophage dysfunction in COPD via PI3K-AKT axis. Cell Commun Signal 2024; 22:364. [PMID: 39014433 DOI: 10.1186/s12964-024-01746-z] [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: 05/04/2024] [Accepted: 07/11/2024] [Indexed: 07/18/2024] Open
Abstract
BACKGROUND Chronic obstructive pulmonary disease (COPD) remains a leading cause of morbidity and mortality worldwide, characterized by persistent respiratory symptoms and airflow limitation. The involvement of C-C motif chemokine ligand 2 (CCL2) in COPD pathogenesis, particularly in macrophage regulation and activation, is poorly understood despite its recognized role in chronic inflammation. Our study aims to elucidate the regulatory role and molecular mechanisms of CCL2 in the pathogenesis of COPD, providing new insights for therapeutic strategies. METHODS This study focused on the CCL2-CCR2 signaling pathway, exploring its role in COPD pathogenesis using both Ccl2 knockout (KO) mice and pharmacological inhibitors. To dissect the underlying mechanisms, we employed various in vitro and in vivo methods to analyze the secretion patterns and pathogenic effects of CCL2 and its downstream molecular signaling through the CCL2-CCR2 axis. RESULTS Elevated Ccl2 expression was confirmed in the lungs of COPD mice and was associated with enhanced recruitment and activation of macrophages. Deletion of Ccl2 in knockout mice, as well as treatment with a Ccr2 inhibitor, resulted in protection against CS- and LPS-induced alveolar injury and airway remodeling. Mechanistically, CCL2 was predominantly secreted by bronchial epithelial cells in a process dependent on STAT1 phosphorylation and acted through the CCR2 receptor on macrophages. This interaction activated the PI3K-AKT signaling pathway, which was pivotal for macrophage activation and the secretion of inflammatory cytokines, further influencing the progression of COPD. CONCLUSIONS The study highlighted the crucial role of CCL2 in mediating inflammatory responses and remodeling in COPD. It enhanced our understanding of COPD's molecular mechanisms, particularly how CCL2's interaction with the CCR2 activates critical signaling pathways. Targeting the CCL2-CCR2 axis emerged as a promising strategy to alleviate COPD pathology.
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Affiliation(s)
- Yue Dong
- Department of Respiratory and Critical Care Medicine, Shanghai Fifth People's Hospital, Fudan University, Shanghai, China
- Center of Community-Based Health Research, Fudan University, Shanghai, China
- Lingang Laboratory, 100-19 Banxia Road, Pudong New District, Shanghai, 200120, China
- State Key Laboratory of Chemical Biology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Ying Dong
- State Key Laboratory of Chemical Biology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Chengyue Zhu
- Department of Respiratory and Critical Care Medicine, Shanghai Fifth People's Hospital, Fudan University, Shanghai, China
- Center of Community-Based Health Research, Fudan University, Shanghai, China
- Lingang Laboratory, 100-19 Banxia Road, Pudong New District, Shanghai, 200120, China
| | - Lan Yang
- School of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, China
| | - Hanlin Wang
- State Key Laboratory of Chemical Biology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Junqing Li
- Department of Respiratory and Critical Care Medicine, Shanghai Fifth People's Hospital, Fudan University, Shanghai, China
- Center of Community-Based Health Research, Fudan University, Shanghai, China
| | - Zixuan Zheng
- Department of General Medicine, Zhuanqiao Community Healthcare Service Center of Minhang District, Shanghai, China
| | - Hanwei Zhao
- Department of General Medicine, Zhuanqiao Community Healthcare Service Center of Minhang District, Shanghai, China
| | - Wanji Xie
- Department of General Medicine, Hongqiao Community Healthcare Service Center of Minhang District, Shanghai, China
| | - Meiting Chen
- Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, China
| | - Zhijun Jie
- Department of Respiratory and Critical Care Medicine, Shanghai Fifth People's Hospital, Fudan University, Shanghai, China
- Center of Community-Based Health Research, Fudan University, Shanghai, China
| | - Jia Li
- State Key Laboratory of Chemical Biology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
- School of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, China
- Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, China
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Guangdong, China
- Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, Yantai, Shandong, China
| | - Yi Zang
- Lingang Laboratory, 100-19 Banxia Road, Pudong New District, Shanghai, 200120, China.
| | - Jindong Shi
- Department of Respiratory and Critical Care Medicine, Shanghai Fifth People's Hospital, Fudan University, Shanghai, China.
- Center of Community-Based Health Research, Fudan University, Shanghai, China.
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Wang X, Liu X, AGA EB, Tse WM, Tse KWG, Ye B. Protective effect of the total alkaloid extract from Bulbus Fritillariae Pallidiflorae on cigarette smoke-induced Beas-2B cell injury model and transcriptomic analysis. Food Nutr Res 2024; 68:10689. [PMID: 38974914 PMCID: PMC11227262 DOI: 10.29219/fnr.v68.10689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 04/19/2024] [Accepted: 05/03/2024] [Indexed: 07/09/2024] Open
Abstract
Background Bulbus Fritillariae Pallidiflorae (BFP) is a traditional Chinese medicine that has long been used to treat lung diseases, but the active components and mechanism are still unclear. Objective This study aimed to investigate the effect and mechanism of the total alkaloid extract from BFP (BFP-TA) on cigarette smoke extract (CSE)-induced Beas-2B cells injury. Design The Beas-2B cells injury model was induced by 2% CSE, then the effect of BFP-TA on the levels of total antioxidant capacity (T-AOC), superoxide dismutase (SOD) and malondialdehyde (MDA) was detected according to the instructions of the T-AOC assay kit, the SOD detection kit and the MDA detection kit, and the production of ROS was detected by fluorescence microscopy. The effect of BFP-TA on Beas-2B cells apoptosis was detected by flow cytometry, and the effect of BFP-TA on related protein expression was detected by western blot. Subsequently, the effect of BFP-TA on differentially expressed genes (DEGs) in CSE-induced Beas-2B cells was studied by transcriptomic sequencing, and the expression of DEGs was verified by quantitative real-time polymerase chain reaction (qPCR). Results The results showed that BFP-TA could attenuate CSE-induced oxidative damage in Beas-2B cells by elevating T-AOC and SOD levels while inhibiting ROS and MDA levels, and the mechanism was potentially related to the SIRT1/Nrf2/Keap1 signaling pathway. Furthermore, BFP-TA could inhibit CSE-induced apoptosis by inhibiting the protein expression of Bax, MST1 and FOXO3a, and exert anti-inflammatory effect by inhibiting the activation of MAPK signaling pathway. Subsequently, transcriptome analysis and qPCR validation showed that BFP-TA could alleviate inflammation, oxidative stress, apoptosis and lipid metabolism disorders by regulating the expression of DEGs in PPAR and PI3K-Akt signaling pathways, thereby exerting a protective effect against CSE-induced Beas-2B cell injury. Conclusion This study is the first to demonstrate that BFP-TA could exert a protective effect on CSE-induced Beas-2B cell injury by exerting anti-inflammatory, antioxidant, anti-apoptotic and regulate lipid metabolism disorders.
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Affiliation(s)
- Xiaoyu Wang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, Sichuan, China
| | - Xiao Liu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, Sichuan, China
| | - Er-Bu AGA
- Medical College of Tibet University, Lasa, Tibet, China
| | - Wai Ming Tse
- Nin Jiom Medicine Manufactory (H.K.) Limited, Hong Kong, China
| | | | - Bengui Ye
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, Sichuan, China
- Medical College of Tibet University, Lasa, Tibet, China
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Zeng R, Zhang D, Zhang J, Pan Y, Liu X, Qi Q, Xu J, Xu C, Shi S, Wang J, Liu T, Dong L. Targeting lysyl oxidase like 2 attenuates OVA-induced airway remodeling partly via the AKT signaling pathway. Respir Res 2024; 25:230. [PMID: 38824593 PMCID: PMC11144323 DOI: 10.1186/s12931-024-02811-4] [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: 10/23/2023] [Accepted: 04/12/2024] [Indexed: 06/03/2024] Open
Abstract
BACKGROUND Airway epithelium is an important component of airway structure and the initiator of airway remodeling in asthma. The changes of extracellular matrix (ECM), such as collagen deposition and structural disturbance, are typical pathological features of airway remodeling. Thus, identifying key mediators that derived from airway epithelium and capable of modulating ECM may provide valuable insights for targeted therapy of asthma. METHODS The datasets from Gene Expression Omnibus database were analyzed to screen differentially expressed genes in airway epithelium of asthma. We collected bronchoscopic biopsies and serum samples from asthmatic and healthy subjects to assess lysyl oxidase like 2 (LOXL2) expression. RNA sequencing and various experiments were performed to determine the influences of LOXL2 knockdown in ovalbumin (OVA)-induced mouse models. The roles and mechanisms of LOXL2 in bronchial epithelial cells were explored using LOXL2 small interfering RNA, overexpression plasmid and AKT inhibitor. RESULTS Both bioinformatics analysis and further experiments revealed that LOXL2 is highly expressed in airway epithelium of asthmatics. In vivo, LOXL2 knockdown significantly inhibited OVA-induced ECM deposition and epithelial-mesenchymal transition (EMT) in mice. In vitro, the transfection experiments on 16HBE cells demonstrated that LOXL2 overexpression increases the expression of N-cadherin and fibronectin and reduces the expression of E-cadherin. Conversely, after silencing LOXL2, the expression of E-cadherin is up-regulated. In addition, the remodeling and EMT process that induced by transforming growth factor-β1 could be enhanced and weakened after LOXL2 overexpression and silencing in 16HBE cells. Combining the RNA sequencing of mouse lung tissues and experiments in vitro, LOXL2 was involved in the regulation of AKT signaling pathway. Moreover, the treatment with AKT inhibitor in vitro partially alleviated the consequences associated with LOXL2 overexpression. CONCLUSIONS Taken together, the results demonstrated that epithelial LOXL2 plays a role in asthmatic airway remodeling partly via the AKT signaling pathway and highlighted the potential of LOXL2 as a therapeutic target for airway remodeling in asthma.
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Affiliation(s)
- Rong Zeng
- Department of Respiratory, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, China
| | - Dong Zhang
- Department of Respiratory, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, China
| | - Jintao Zhang
- Department of Respiratory, The First Affiliated Hospital of Shandong First Medical University, Shandong Institute of Respiratory Diseases, Jinan, China
| | - Yun Pan
- Department of Respiratory, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, China
| | - Xiaofei Liu
- Department of Respiratory, Shandong Qianfoshan Hospital, School of Clinical and Basic Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Qian Qi
- Department of Respiratory, The First Affiliated Hospital of Shandong First Medical University, Shandong Institute of Respiratory Diseases, Jinan, China
| | - Jiawei Xu
- Department of Respiratory, The First Affiliated Hospital of Shandong First Medical University, Shandong Institute of Respiratory Diseases, Jinan, China
| | - Changjuan Xu
- Department of Respiratory, Shandong Qianfoshan Hospital, School of Clinical and Basic Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Shuochuan Shi
- Department of Respiratory, Shandong Qianfoshan Hospital, School of Clinical and Basic Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Junfei Wang
- Department of Respiratory and Critical Care Medicine, Qilu hospital of Shandong University, Jinan, China
| | - Tian Liu
- Department of Respiratory and Critical Care Medicine, Qilu hospital of Shandong University, Jinan, China
| | - Liang Dong
- Department of Respiratory, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, China.
- Department of Respiratory, The First Affiliated Hospital of Shandong First Medical University, Shandong Institute of Respiratory Diseases, Jinan, China.
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Zavvarian MM, Modi AD, Sadat S, Hong J, Fehlings MG. Translational Relevance of Secondary Intracellular Signaling Cascades Following Traumatic Spinal Cord Injury. Int J Mol Sci 2024; 25:5708. [PMID: 38891894 PMCID: PMC11172219 DOI: 10.3390/ijms25115708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 05/15/2024] [Accepted: 05/21/2024] [Indexed: 06/21/2024] Open
Abstract
Traumatic spinal cord injury (SCI) is a life-threatening and life-altering condition that results in debilitating sensorimotor and autonomic impairments. Despite significant advances in the clinical management of traumatic SCI, many patients continue to suffer due to a lack of effective therapies. The initial mechanical injury to the spinal cord results in a series of secondary molecular processes and intracellular signaling cascades in immune, vascular, glial, and neuronal cell populations, which further damage the injured spinal cord. These intracellular cascades present promising translationally relevant targets for therapeutic intervention due to their high ubiquity and conservation across eukaryotic evolution. To date, many therapeutics have shown either direct or indirect involvement of these pathways in improving recovery after SCI. However, the complex, multifaceted, and heterogeneous nature of traumatic SCI requires better elucidation of the underlying secondary intracellular signaling cascades to minimize off-target effects and maximize effectiveness. Recent advances in transcriptional and molecular neuroscience provide a closer characterization of these pathways in the injured spinal cord. This narrative review article aims to survey the MAPK, PI3K-AKT-mTOR, Rho-ROCK, NF-κB, and JAK-STAT signaling cascades, in addition to providing a comprehensive overview of the involvement and therapeutic potential of these secondary intracellular pathways following traumatic SCI.
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Affiliation(s)
- Mohammad-Masoud Zavvarian
- Division of Genetics and Development, Toronto Western Hospital, University Health Network, Toronto, ON M5T 2S8, Canada; (M.-M.Z.); (A.D.M.); (S.S.); (J.H.)
- Institute of Medical Science, Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Akshat D. Modi
- Division of Genetics and Development, Toronto Western Hospital, University Health Network, Toronto, ON M5T 2S8, Canada; (M.-M.Z.); (A.D.M.); (S.S.); (J.H.)
- Department of Biological Sciences, University of Toronto, Scarborough, ON M1C 1A4, Canada
- Department of Human Biology, University of Toronto, Toronto, ON M5S 3J6, Canada
| | - Sarah Sadat
- Division of Genetics and Development, Toronto Western Hospital, University Health Network, Toronto, ON M5T 2S8, Canada; (M.-M.Z.); (A.D.M.); (S.S.); (J.H.)
- Institute of Medical Science, Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - James Hong
- Division of Genetics and Development, Toronto Western Hospital, University Health Network, Toronto, ON M5T 2S8, Canada; (M.-M.Z.); (A.D.M.); (S.S.); (J.H.)
| | - Michael G. Fehlings
- Division of Genetics and Development, Toronto Western Hospital, University Health Network, Toronto, ON M5T 2S8, Canada; (M.-M.Z.); (A.D.M.); (S.S.); (J.H.)
- Institute of Medical Science, Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
- Department of Surgery, Faculty of Medicine, University of Toronto, Toronto, ON M5T 1P5, Canada
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Attia HG, El-Morshedy SM, Nagy AM, Ibrahim AM, Aleraky M, Abdelrahman SS, Osman SM, Alasmari SM, El Raey MA, Abdelhameed MF. Citrus clementine Peel Essential Oil Ameliorates Potassium Dichromate-Induced Lung Injury: Insights into the PI3K/AKT Pathway. Metabolites 2024; 14:68. [PMID: 38276303 PMCID: PMC10818323 DOI: 10.3390/metabo14010068] [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: 12/21/2023] [Revised: 01/12/2024] [Accepted: 01/16/2024] [Indexed: 01/27/2024] Open
Abstract
Acute Lung Injury (ALI) is a life-threatening syndrome that has been identified as a potential complication of COVID-19. There is a critical need to shed light on the underlying mechanistic pathways and explore novel therapeutic strategies. This study aimed to examine the potential therapeutic effects of Citrus clementine essential oil (CCEO) in treating potassium dichromate (PDC)-induced ALI. The chemical profile of CCEO was created through GC-MS analysis. An in vivo study in rats was conducted to evaluate the effect of CCEO administrated via two different delivery systems (oral/inhalation) in mitigating acute lung injury (ALI) induced by intranasal instillation of PDC. Eight volatile compounds were identified, with monoterpene hydrocarbons accounting for 97.03% of the identified constituents, including 88.84% of D-limonene. CCEO at doses of 100 and 200 mg/kg bw exhibited antioxidant and anti-inflammatory properties. These significant antioxidant properties were revealed through the reduction of malondialdehyde (MDA) and the restoration of reduced glutathione (GSH). In addition, inflammation reduction was observed by decreasing levels of cytokines tumor necrosis factor-α and tumor growth factor-β (TNF-α and TGF-β), along with an increase in phosphatidylinositide-3-kinase (PI3K) and Akt overexpression in lung tissue homogenate, in both oral and inhalation routes, compared to the PDC-induced group. These results were supported by histopathological studies and immunohistochemical assessment of TGF-β levels in lung tissues. These findings revealed that CCEO plays an integral role in relieving ALI induced by intranasal PDC and suggests it as a promising remedy.
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Affiliation(s)
- Hany G. Attia
- Department of Pharmacognosy, College of Pharmacy, Najran University, Najran 1988, Saudi Arabia
| | - Suzan M. El-Morshedy
- Clinical Pathology Department, National Liver Institute, Menoufia University, Menoufia 32511, Egypt;
| | - Ahmed M. Nagy
- Department of Animal Reproduction & AI, Veterinary Research Institute, National Research Center, 33 El Bohouth St., Dokki, Cairo 12622, Egypt;
| | - Ammar M. Ibrahim
- Applied Medical Sciences College, Najran University, Najran 55461, Saudi Arabia; (A.M.I.); (S.M.A.)
| | - Mohamed Aleraky
- Department of Clinical Pathology, Al-Azhar University, New Damietta 11651, Egypt;
| | - Sahar S. Abdelrahman
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Giza 12613, Egypt;
| | - Samir M. Osman
- Department of Pharmacognosy, Faculty of Pharmacy, Oct. 6 University, Giza 12585, Egypt;
| | - Saeed M. Alasmari
- Applied Medical Sciences College, Najran University, Najran 55461, Saudi Arabia; (A.M.I.); (S.M.A.)
| | - Mohamed A. El Raey
- Department of Phytochemistry and Plant Systematics, Pharmaceutical Division, National Research Centre, Dokki, Cairo 12622, Egypt
| | - Mohamed F. Abdelhameed
- Pharmacology Department, National Research Centre, 33 El Bohouth St., Dokki, Cairo 12622, Egypt;
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