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Mohammed SM, Al-Saedi HFS, Mohammed AQ, Amir AA, Radi UK, Sattar R, Ahmad I, Ramadan MF, Alshahrani MY, Balasim HM, Alawadi A. Mechanisms of Bleomycin-induced Lung Fibrosis: A Review of Therapeutic Targets and Approaches. Cell Biochem Biophys 2024:10.1007/s12013-024-01384-9. [PMID: 38955925 DOI: 10.1007/s12013-024-01384-9] [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] [Accepted: 06/21/2024] [Indexed: 07/04/2024]
Abstract
Pulmonary toxicity is a serious side effect of some specific anticancer drugs. Bleomycin is a well-known anticancer drug that triggers severe reactions in the lungs. It is an approved drug that may be prescribed for the treatment of testicular cancers, Hodgkin's and non-Hodgkin's lymphomas, ovarian cancer, head and neck cancers, and cervical cancer. A large number of experimental studies and clinical findings show that bleomycin can concentrate in lung tissue, leading to massive oxidative stress, alveolar epithelial cell death, the proliferation of fibroblasts, and finally the infiltration of immune cells. Chronic release of pro-inflammatory and pro-fibrotic molecules by immune cells and fibroblasts leads to pneumonitis and fibrosis. Both fibrosis and pneumonitis are serious concerns for patients who receive bleomycin and may lead to death. Therefore, the management of lung toxicity following cancer therapy with bleomycin is a critical issue. This review explains the cellular and molecular mechanisms of pulmonary injury following treatment with bleomycin. Furthermore, we review therapeutic targets and possible promising strategies for ameliorating bleomycin-induced lung injury.
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Affiliation(s)
- Shaimaa M Mohammed
- Department of Pharmacy, Al- Mustaqbal University College, 51001, Hilla, Babylon, Iraq
| | | | | | - Ahmed Ali Amir
- Department of Medical Laboratories Technology, Al-Nisour University College, Baghdad, Iraq
| | - Usama Kadem Radi
- College of Pharmacy, National University of Science and Technology, Nasiriyah, Dhi Qar, Iraq
| | - Ruaa Sattar
- Al-Hadi University College, Baghdad, 10011, Iraq
| | - Irfan Ahmad
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
| | | | - Mohammad Y Alshahrani
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia.
| | - Halah Majeed Balasim
- Department of Medical Laboratory Technologies, Al Rafidain University College, Bagdad, Iraq
| | - Ahmed Alawadi
- College of technical engineering, the Islamic University, Najaf, Iraq
- College of technical engineering, the Islamic University of Al Diwaniyah, Al Diwaniyah, Iraq
- College of technical engineering, the Islamic University of Babylon, Hilla, Iraq
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2
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Salminen A, Kaarniranta K, Kauppinen A. Tissue fibroblasts are versatile immune regulators: An evaluation of their impact on the aging process. Ageing Res Rev 2024; 97:102296. [PMID: 38588867 DOI: 10.1016/j.arr.2024.102296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 03/26/2024] [Accepted: 04/03/2024] [Indexed: 04/10/2024]
Abstract
Fibroblasts are abundant stromal cells which not only control the integrity of extracellular matrix (ECM) but also act as immune regulators. It is known that the structural cells within tissues can establish an organ-specific immunity expressing many immune-related genes and closely interact with immune cells. In fact, fibroblasts can modify their immune properties to display both pro-inflammatory and immunosuppressive activities in a context-dependent manner. After acute insults, fibroblasts promote tissue inflammation although they concurrently recruit immunosuppressive cells to enhance the resolution of inflammation. In chronic pathological states, tissue fibroblasts, especially senescent fibroblasts, can display many pro-inflammatory and immunosuppressive properties and stimulate the activities of different immunosuppressive cells. In return, immunosuppressive cells, such as M2 macrophages and myeloid-derived suppressor cells (MDSC), evoke an excessive conversion of fibroblasts into myofibroblasts, thus aggravating the severity of tissue fibrosis. Single-cell transcriptome studies on fibroblasts isolated from aged tissues have confirmed that tissue fibroblasts express many genes coding for cytokines, chemokines, and complement factors, whereas they lose some fibrogenic properties. The versatile immune properties of fibroblasts and their close cooperation with immune cells indicate that tissue fibroblasts have a crucial role in the aging process and age-related diseases.
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Affiliation(s)
- Antero Salminen
- Department of Neurology, Institute of Clinical Medicine, University of Eastern Finland, P.O. Box 1627, Kuopio FI-70211, Finland.
| | - Kai Kaarniranta
- Department of Ophthalmology, Institute of Clinical Medicine, University of Eastern Finland, P.O. Box 1627, Kuopio FI-70211, Finland; Department of Ophthalmology, Kuopio University Hospital, P.O. Box 100, KYS FI-70029, Finland
| | - Anu Kauppinen
- School of Pharmacy, Faculty of Health Sciences, University of Eastern Finland, P.O. Box 1627, Kuopio FI-70211, Finland
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Karaosmanoglu B, Imren G, Uner M, Orhan D, Gucer S, Boybeyi Turer O, Simsek Kiper PO, Utine E, Taskiran EZ, Tanyel FC, Soyer T. AP-1-dependent fibrosis: Exploring its potential role in the pathogenesis of placental transmogrification of the lung (PTL) via tissue-level transcriptome analysis. Pathol Res Pract 2024; 258:155334. [PMID: 38718468 DOI: 10.1016/j.prp.2024.155334] [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: 01/04/2024] [Revised: 04/25/2024] [Accepted: 04/25/2024] [Indexed: 05/29/2024]
Abstract
Placental transmogrification of the lung (PTL) is a rare pulmonary condition characterized by the presence of immature placental villous structures. The etiology and molecular mechanisms underlying this disease remain largely unknown. This functional study aimed to identify the molecular signatures in the pathogenesis of PTL via comprehensive transcriptome analysis. Comparative transcriptomic assessment of PTL tissue and stromal cells showed differential expression of 257 genes in PTL tissue and 189 genes in stromal cells. Notably, several transcription factors and regulators, including FOSB, FOS, JUN, and ATF3, were upregulated in PTL tissue. Additionally, genes associated with the extracellular matrix and connective tissue, such as COL1A1, MMP2, and SPARC, were significantly altered, indicating possible fibrotic changes. Gene set enrichment analysis highlighted the role of vascular development and extracellular matrix organization, and the Activator Protein-1 (AP-1) transcription factor was significantly activated in PTL tissue. Furthermore, the analysis highlighted an overlap of 25 genes between PTL tissue and stromal cells, underscoring the importance of shared molecular pathways in the pathogenesis of PTL. Among the shared genes, JUND, COL4A2, COL6A2, IGFBP5, and IGFBP7 were consistently upregulated, highlighting the possible involvement of AP-1-mediated signaling and fibrotic changes in the pathogenesis of PTL. The present findings pave the way for further research into the molecular mechanisms underlying PTL and offer novel insights for therapeutic interventions. Given the rarity of PTL, these molecular findings represent a significant step forward in our understanding this enigmatic disease.
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Affiliation(s)
- Beren Karaosmanoglu
- Department of Medical Genetics, Hacettepe University, Faculty of Medicine, Ankara, Turkey.
| | - Gozde Imren
- Department of Medical Genetics, Hacettepe University, Faculty of Medicine, Ankara, Turkey
| | - Meral Uner
- Department of Pathology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Diclehan Orhan
- Department of Medical Pathology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Safak Gucer
- Department of Pediatrics Pediatric Pathology Unit, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Ozlem Boybeyi Turer
- Department of Paediatric Surgery, Hacettepe University, Faculty of Medicine, Ankara, Turkey
| | | | - Eda Utine
- Department of Pediatric Genetics, Hacettepe University, Faculty of Medicine, Ankara, Turkey
| | - Ekim Z Taskiran
- Department of Medical Genetics, Hacettepe University, Faculty of Medicine, Ankara, Turkey
| | - Feridun Cahit Tanyel
- Department of Paediatric Surgery, Hacettepe University, Faculty of Medicine, Ankara, Turkey
| | - Tutku Soyer
- Department of Paediatric Surgery, Hacettepe University, Faculty of Medicine, Ankara, Turkey
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Zhou BW, Liu HM, Xu F, Jia XH. The role of macrophage polarization and cellular crosstalk in the pulmonary fibrotic microenvironment: a review. Cell Commun Signal 2024; 22:172. [PMID: 38461312 PMCID: PMC10924385 DOI: 10.1186/s12964-024-01557-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Accepted: 03/03/2024] [Indexed: 03/11/2024] Open
Abstract
Pulmonary fibrosis (PF) is a progressive interstitial inflammatory disease with a high mortality rate. Patients with PF commonly experience a chronic dry cough and progressive dyspnoea for years without effective mitigation. The pathogenesis of PF is believed to be associated with dysfunctional macrophage polarization, fibroblast proliferation, and the loss of epithelial cells. Thus, it is of great importance and necessity to explore the interactions among macrophages, fibroblasts, and alveolar epithelial cells in lung fibrosis, as well as in the pro-fibrotic microenvironment. In this review, we discuss the latest studies that have investigated macrophage polarization and activation of non-immune cells in the context of PF pathogenesis and progression. Next, we discuss how profibrotic cellular crosstalk is promoted in the PF microenvironment by multiple cytokines, chemokines, and signalling pathways. And finally, we discuss the potential mechanisms of fibrogenesis development and efficient therapeutic strategies for the disease. Herein, we provide a comprehensive summary of the vital role of macrophage polarization in PF and its profibrotic crosstalk with fibroblasts and alveolar epithelial cells and suggest potential treatment strategies to target their cellular communication in the microenvironment.
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Affiliation(s)
- Bo-Wen Zhou
- The First School of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250014, China
| | - Hua-Man Liu
- Department of General Medicine, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, 250014, China
| | - Fei Xu
- Department of Pneumology and Critical Care Medicine, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, 250014, China
| | - Xin-Hua Jia
- Department of Pneumology and Critical Care Medicine, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, 250014, China.
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Salminen A. AMPK signaling inhibits the differentiation of myofibroblasts: impact on age-related tissue fibrosis and degeneration. Biogerontology 2024; 25:83-106. [PMID: 37917219 PMCID: PMC10794430 DOI: 10.1007/s10522-023-10072-9] [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: 09/08/2023] [Accepted: 09/26/2023] [Indexed: 11/04/2023]
Abstract
Disruption of the extracellular matrix (ECM) and an accumulation of fibrotic lesions within tissues are two of the distinctive hallmarks of the aging process. Tissue fibroblasts are mesenchymal cells which display an impressive plasticity in the regulation of ECM integrity and thus on tissue homeostasis. Single-cell transcriptome studies have revealed that tissue fibroblasts exhibit a remarkable heterogeneity with aging and in age-related diseases. Excessive stress and inflammatory insults induce the differentiation of fibroblasts into myofibroblasts which are fusiform contractile cells and abundantly secrete the components of the ECM and proteolytic enzymes as well as many inflammatory mediators. Detrimental stresses can also induce the transdifferentiation of certain mesenchymal and myeloid cells into myofibroblasts. Interestingly, many age-related stresses, such as oxidative and endoplasmic reticulum stresses, ECM stiffness, inflammatory mediators, telomere shortening, and several alarmins from damaged cells are potent inducers of myofibroblast differentiation. Intriguingly, there is convincing evidence that the signaling pathways stimulated by the AMP-activated protein kinase (AMPK) are potent inhibitors of myofibroblast differentiation and accordingly AMPK signaling reduces fibrotic lesions within tissues, e.g., in age-related cardiac and pulmonary fibrosis. AMPK signaling is not only an important regulator of energy metabolism but it is also able to control cell fate determination and many functions of the immune system. It is known that AMPK signaling can delay the aging process via an integrated signaling network. AMPK signaling inhibits myofibroblast differentiation, e.g., by suppressing signaling through the TGF-β, NF-κB, STAT3, and YAP/TAZ pathways. It seems that AMPK signaling can alleviate age-related tissue fibrosis and degeneration by inhibiting the differentiation of myofibroblasts.
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Affiliation(s)
- Antero Salminen
- Department of Neurology, Institute of Clinical Medicine, University of Eastern Finland, P.O. Box 1627, 70211, Kuopio, Finland.
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Tsai CF, Chen YC, Li YZ, Wu CT, Chang PC, Yeh WL. Imperatorin ameliorates pulmonary fibrosis via GDF15 expression. Front Pharmacol 2023; 14:1292137. [PMID: 38111379 PMCID: PMC10725920 DOI: 10.3389/fphar.2023.1292137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 11/20/2023] [Indexed: 12/20/2023] Open
Abstract
Background: Pulmonary fibrosis features in damaged pulmonary structure or over-produced extracellular matrix and impaired lung function, leading to respiratory failure and eventually death. Fibrotic lungs are characterized by the secretion of pro-fibrotic factors, transformation of fibroblasts to myofibroblasts, and accumulation of matrix proteins. Hypothesis/purpose: Imperatorin shows anti-inflammatory effects on alveolar macrophages against acute lung injury. We attempt to evaluate the properties of imperatorin on the basis of fibroblasts. Methods: In in vitro, zymosan was introduced to provoke pro-fibrotic responses in NIH/3T3 or MRC-5 pulmonary fibroblasts. Imperatorin was given for examining its effects against fibrosis. The mice were stimulated by bleomycin, and imperatorin was administered to evaluate the prophylactic potential in vivo. Results: The upregulated expression of connective tissue growth factor (CTGF), α-smooth muscle actin (α-SMA), and collagen protein due to zymosan introduction was decreased by imperatorin in fibroblasts. Zymosan induced the activity of transglutaminase 2 (TGase2) and lysyl oxidase (LOX), which was also inhibited by the administration of imperatorin. Imperatorin alone enhanced sirtuin 1 (SIRT1) activity and growth differentiation factor 15 (GDF15) secretion in fibroblasts via LKB1/AMPK/CREB pathways. In addition, GDF15 exerted a beneficial effect by reducing the protein expression of CTGF, α-SMA, and collagen and the activities of TGase and LOX. Moreover, orally administered imperatorin showed prophylactic effects on bleomycin-induced pulmonary fibrosis in mice. Conclusion: Imperatorin reduces fibrotic marker expression in fibroblasts and also increases GDF15 secretion via the LKB1/AMPK/CREB pathway, attenuating pro-fibrotic responses in vitro. Imperatorin also alleviates pulmonary fibrosis induced by bleomycin in vivo.
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Affiliation(s)
- Cheng-Fang Tsai
- Department of Medical Laboratory Science and Biotechnology, Asia University, Taichung, Taiwan
| | - Yen-Chang Chen
- Institute of New Drug Development, China Medical University, Taichung, Taiwan
| | - Ya-Zhen Li
- Institute of New Drug Development, China Medical University, Taichung, Taiwan
| | - Chen-Teng Wu
- Department of Surgery, China Medical University Hospital, Taichung, Taiwan
| | - Pei-Chun Chang
- Department of Bioinformatics and Medical Engineering, Asia University, Taichung, Taiwan
| | - Wei-Lan Yeh
- Institute of New Drug Development, China Medical University, Taichung, Taiwan
- Department of Biochemistry, School of Medicine, China Medical University, Taichung, Taiwan
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Zhao W, Wei J, Ji X, Jia E, Li J, Huo J. Machine learning algorithm predicts fibrosis-related blood diagnosis markers of intervertebral disc degeneration. BMC Med Genomics 2023; 16:274. [PMID: 37915003 PMCID: PMC10619283 DOI: 10.1186/s12920-023-01705-6] [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: 05/14/2023] [Accepted: 10/15/2023] [Indexed: 11/03/2023] Open
Abstract
BACKGROUND Intervertebral disc cell fibrosis has been established as a contributing factor to intervertebral disc degeneration (IDD). This study aimed to identify fibrosis-related diagnostic genes for patients with IDD. METHODS RNA-sequencing data was downloaded from Gene Expression Omnibus (GEO) database. The diagnostic genes was identified using Random forest based on the differentially expressed fibrosis-related genes (DE-FIGs) between IDD and control samples. The immune infiltration states in IDD and the regulatory network as well as potential drugs targeted diagnostic genes were investigated. Quantitative Real-Time PCR was conducted for gene expression valifation. RESULTS CEP120 and SPDL1 merged as diagnostic genes. Substantial variations were observed in the proportions of natural killer cells, neutrophils, and myeloid-derived suppressor cells between IDD and control samples. Further experiments indicated that AC144548.1 could regulate the expressions of SPDL1 and CEP120 by combininghsa-miR-5195-3p and hsa-miR-455-3p, respectively. Additionally, transcription factors FOXM1, PPARG, and ATF3 were identified as regulators of SPDL1 and CEP120 transcription. Notably, 56 drugs were predicted to target these genes. The down-regulation of SPDL1 and CEP120 was also validated. CONCLUSION This study identified two diagnostic genes associated with fibrosis in patients with IDD. Additionally, we elucidated their potential regulatory networks and identified target drugs, which offer a theoretical basis and reference for further study into fibrosis-related genes involved in IDD.
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Affiliation(s)
- Wei Zhao
- First Hospital of Shanxi Medical University, Taiyuan, Shanxi Province, PR China
- Shanxi Medical University, Taiyuan, Shanxi Province, PR China
| | - Jinzheng Wei
- Shanxi Medical University, Taiyuan, Shanxi Province, PR China
| | - Xinghua Ji
- Tongji Shanxi Hospital, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Third Hospital of Shanxi Medical University, Taiyuan, Shanxi Province, PR China
| | - Erlong Jia
- First Hospital of Shanxi Medical University, Taiyuan, Shanxi Province, PR China
| | - Jinhu Li
- First Hospital of Shanxi Medical University, Taiyuan, Shanxi Province, PR China.
| | - Jianzhong Huo
- Taiyuan Central Hospital of Shanxi Medical University, Taiyuan, Shanxi Province, PR China.
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Corano Scheri K, Liang X, Dalal V, Le Poole IC, Varga J, Hayashida T. SARA suppresses myofibroblast precursor transdifferentiation in fibrogenesis in a mouse model of scleroderma. JCI Insight 2022; 7:160977. [PMID: 36136606 PMCID: PMC9675568 DOI: 10.1172/jci.insight.160977] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 09/12/2022] [Indexed: 12/15/2022] Open
Abstract
We previously reported that Smad anchor for receptor activation (SARA) plays a critical role in maintaining epithelial cell phenotype. Here, we show that SARA suppressed myofibroblast precursor transdifferentiation in a mouse model of scleroderma. Mice overexpressing SARA specifically in PDGFR-β+ pericytes and pan-leukocytes (SARATg) developed significantly less skin fibrosis in response to bleomycin injection compared with wild-type littermates (SARAWT). Single-cell RNA-Seq analysis of skin PDGFR-β+ cells implicated pericyte subsets assuming myofibroblast characteristics under fibrotic stimuli, and SARA overexpression blocked the transition. In addition, a cluster that expresses molecules associated with Th2 cells and macrophage activation was enriched in SARAWT mice, but not in SARATg mice, after bleomycin treatment. Th2-specific Il-31 expression was increased in skin of the bleomycin-treated SARAWT mice and patients with scleroderma (or systemic sclerosis, SSc). Receptor-ligand analyses indicated that lymphocytes mediated pericyte transdifferentiation in SARAWT mice, while with SARA overexpression the myofibroblast activity of pericytes was suppressed. Together, these data suggest a potentially novel crosstalk between myofibroblast precursors and immune cells in the pathogenesis of SSc, in which SARA plays a critical role.
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Affiliation(s)
- Katia Corano Scheri
- Department of Pediatrics, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA.,Pediatric Nephrology, Ann and Robert H. Lurie Children’s Hospital of Chicago, Chicago, Illinois, USA
| | - Xiaoyan Liang
- Department of Pediatrics, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Vidhi Dalal
- Department of Pediatrics, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA.,Pediatric Nephrology, Ann and Robert H. Lurie Children’s Hospital of Chicago, Chicago, Illinois, USA
| | - I. Caroline Le Poole
- Departments of Dermatology and Microbiology and Immunology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - John Varga
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Tomoko Hayashida
- Department of Pediatrics, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA.,Pediatric Nephrology, Ann and Robert H. Lurie Children’s Hospital of Chicago, Chicago, Illinois, USA
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Xia R, Wang L, Zhou T, Zeng Y, Li X, Wu S, Huang X, Kang Y, Yin W. Pomegranate juice ameliorates pulmonary fibrosis by regulating inflammatory response and epithelial mesenchymal transformation. J Funct Foods 2022. [DOI: 10.1016/j.jff.2022.105113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/09/2022] Open
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10
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He Q, Zhang W, Zhang J, Deng Y. Cannabinoid Analogue WIN 55212-2 Protects Paraquat-Induced Lung Injury and Enhances Macrophage M2 Polarization. Inflammation 2022; 45:2256-2267. [PMID: 35674874 PMCID: PMC9174632 DOI: 10.1007/s10753-022-01688-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 05/18/2022] [Accepted: 05/20/2022] [Indexed: 01/02/2023]
Abstract
WIN 55212-2 is an endocannabinoids analogue that has been reported to have anti-inflammatory and anti-fibrosis effects on different models. In this study, we investigated the protective effects of WIN 55212-2 on paraquat (PQ)-induced poison on mice especially on lung injury. Mice were administrated with different dose of PQ and thereafter treated with 0.2 mg/kg or 1 mg/kg WIN 55212-2. The survival of mice was recorded during 4 weeks of observation. Twenty-eight days after PQ treatment, the cell population and inflammatory factors IL-6, IL-10, and TNF-α were measured in bronchoalveolar lavage fluid (BALF). Pulmonary fibrosis was evaluated by Masson staining. Our results showed that WIN 55212-2 treatment reduced PQ-induced mortality of mice in a dose dependent manner. It decreased the number of inflammation-associated cells, as well as the level of pro-inflammatory factors in BALF (P < 0.05). WIN 55212-2 increased M2 cells in BALF (P < 0.05), improved the lung histology, reduced fibrosis formation, and decreased TGF-β, α-SMA and PDGFRa expression. The protective effects of WIN 55212-2 on PQ-induced lung injury and fibrosis were associated with an increase inM2 cells and increased expressions of IL-10, CD163, and CD206, suggesting that polarization of M2 macrophages may be involved in WIN 55212-2 protective effects on PQ-induced lung injury.
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Affiliation(s)
- Quan He
- Department of Emergency, the First People's Hospital of Yunnan Province,the Affiliated Hospital of Kunming University of Science and Technology, Xishan District, No.157 Jinbi Road Yunnan Province, Kunming City, China.
| | - Wen Zhang
- Department of Basic Research Institute, the First People's Hospital of Yunnan Province, the Affiliated Hospital of Kunming University of Science and Technology,Xishan District, No.157 Jinbi Road Yunnan Province, Kunming City, China
| | - Jinjuan Zhang
- Department of Basic Research Institute, the First People's Hospital of Yunnan Province, the Affiliated Hospital of Kunming University of Science and Technology,Xishan District, No.157 Jinbi Road Yunnan Province, Kunming City, China
| | - Yuanyou Deng
- Department of Emergency, the First People's Hospital of Yunnan Province,the Affiliated Hospital of Kunming University of Science and Technology, Xishan District, No.157 Jinbi Road Yunnan Province, Kunming City, China
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11
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Lillehoj EP, Luzina IG, Atamas SP. Mammalian Neuraminidases in Immune-Mediated Diseases: Mucins and Beyond. Front Immunol 2022; 13:883079. [PMID: 35479093 PMCID: PMC9035539 DOI: 10.3389/fimmu.2022.883079] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 03/21/2022] [Indexed: 12/28/2022] Open
Abstract
Mammalian neuraminidases (NEUs), also known as sialidases, are enzymes that cleave off the terminal neuraminic, or sialic, acid resides from the carbohydrate moieties of glycolipids and glycoproteins. A rapidly growing body of literature indicates that in addition to their metabolic functions, NEUs also regulate the activity of their glycoprotein targets. The simple post-translational modification of NEU protein targets-removal of the highly electronegative sialic acid-affects protein folding, alters protein interactions with their ligands, and exposes or covers proteolytic sites. Through such effects, NEUs regulate the downstream processes in which their glycoprotein targets participate. A major target of desialylation by NEUs are mucins (MUCs), and such post-translational modification contributes to regulation of disease processes. In this review, we focus on the regulatory roles of NEU-modified MUCs as coordinators of disease pathogenesis in fibrotic, inflammatory, infectious, and autoimmune diseases. Special attention is placed on the most abundant and best studied NEU1, and its recently discovered important target, mucin-1 (MUC1). The role of the NEU1 - MUC1 axis in disease pathogenesis is discussed, along with regulatory contributions from other MUCs and other pathophysiologically important NEU targets.
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Affiliation(s)
- Erik P. Lillehoj
- Department of Pediatrics, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Irina G. Luzina
- Department of Medicine, University of Maryland School of Medicine, Baltimore, MD, United States
- Research Service, Baltimore Veterans Affairs (VA) Medical Center, Baltimore, MD, United States
| | - Sergei P. Atamas
- Department of Medicine, University of Maryland School of Medicine, Baltimore, MD, United States
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Kim SG. 4-Hexylresorcinol: pharmacologic chaperone and its application for wound healing. Maxillofac Plast Reconstr Surg 2022; 44:5. [PMID: 35103875 PMCID: PMC8805429 DOI: 10.1186/s40902-022-00334-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 01/12/2022] [Indexed: 12/12/2022] Open
Abstract
4-Hexylresorcinol (4HR) is amphiphilic organic chemical and auto-regulator for micro-organism. As 4HR administration induces the stress on the endoplasmic reticulum, 4HR changes protein folding. The application of 4HR inhibits NF-κB signal pathway and TNF-α production. In addition, 4HR administration increases VEGF, TGF-β1, and calcification associated proteins. As a consequence, 4HR administration increases angiogenesis and bone formation in wounded area. Strong anti-inflammatory reaction and capillary regeneration in diabetic model demonstrate that 4HR can be applied on many types of surgical wound.
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