1
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Dohare A, Chatterjee N, Misra SK. In situ carbonization metamorphoses porous silica particles into biodegradable therapeutic carriers of lesser consequence on TGF-β1 mediated fibrosis. NANOSCALE 2024; 16:8843-8850. [PMID: 38644775 DOI: 10.1039/d4nr00123k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/23/2024]
Abstract
Extensive modifications have been made to the synthesis protocol for porous silica particles to improve the shape, size and yield percentage, but problems associated with improvement in biodegradability and decrease in chances to induce side effects still remain a concern. To circumvent these limitations, a facile modification strategy has been employed through in situ carbonization of porous silica particles. Herein, carbon particles were integrated within porous silica core-shell particles (Si-P-CNPs) during the synthesis process and found to preserve the ordered structural morphology. Curcumin was used as a model drug for loading in prepared Si-P-CNPs whereas lung cancer cells were used as a model system to study the in vitro fate. These Si-P-CNPs showed improved drug loading, drug effectivity, biodegradability and avoidance of interaction with transforming growth factor β1 (TGF-β1) indicating the possibility of reducing the chances of lung fibrosis and thereby enhancing the safety profile over conventional porous silica particles.
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Affiliation(s)
- Akanksha Dohare
- Department of Biological Sciences & Bioengineering, Indian Institute of Technology Kanpur, Kanpur, UP, 208016, India.
| | - Niranjan Chatterjee
- Department of Biological Sciences & Bioengineering, Indian Institute of Technology Kanpur, Kanpur, UP, 208016, India.
| | - Santosh K Misra
- Department of Biological Sciences & Bioengineering, Indian Institute of Technology Kanpur, Kanpur, UP, 208016, India.
- The Mehta Family Centre for Engineering in Medicine, Indian Institute of Technology Kanpur, Kanpur, UP, 208016, India
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2
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Liu TT, Sun HF, Han YX, Zhan Y, Jiang JD. The role of inflammation in silicosis. Front Pharmacol 2024; 15:1362509. [PMID: 38515835 PMCID: PMC10955140 DOI: 10.3389/fphar.2024.1362509] [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: 12/28/2023] [Accepted: 02/21/2024] [Indexed: 03/23/2024] Open
Abstract
Silicosis is a chronic illness marked by diffuse fibrosis in lung tissue resulting from continuous exposure to SiO2-rich dust in the workplace. The onset and progression of silicosis is a complicated and poorly understood pathological process involving numerous cells and molecules. However, silicosis poses a severe threat to public health in developing countries, where it is the most prevalent occupational disease. There is convincing evidence supporting that innate and adaptive immune cells, as well as their cytokines, play a significant role in the development of silicosis. In this review, we describe the roles of immune cells and cytokines in silicosis, and summarize current knowledge on several important inflammatory signaling pathways associated with the disease, aiming to provide novel targets and strategies for the treatment of silicosis-related inflammation.
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Affiliation(s)
| | | | | | - Yun Zhan
- Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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3
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Dey P, Biswas S, Das R, Chatterjee S, Ghosh U. p38 MAPK inhibitor SB203580 enhances anticancer activity of PARP inhibitor olaparib in a synergistic way on non-small cell lung carcinoma A549 cells. Biochem Biophys Res Commun 2023; 670:55-62. [PMID: 37276791 DOI: 10.1016/j.bbrc.2023.05.116] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 05/27/2023] [Indexed: 06/07/2023]
Abstract
The Poly (ADP-ribose) polymerase (PARP) inhibitor (PARPi) olaparib gives promising results against various types of cancers in clinical trials. The combination of drugs always increases therapeutic efficacy because of targeting multiple pathways of cancer progression. Our objective was to explore the potential synergistic anticancer activities of olaparib combined with p38 MAPK inhibitor (MAPKi) SB203580 on non-small cell lung carcinoma (NSCLC) A549 cells. The effects of the individual compound and their combination on cell survival, DNA damage as detected by γH2AX foci, expression of key proteins in Homologous Recombination (HR) and Non-Homologous End Joining (NHEJ) repair, caspase 3 activation, nuclear fragmentation and telomerase regulation were studied in A549 cells. The results showed that olaparib and SB203580 individually reduced cell viability in a dose-dependent manner but combined treatment synergistically reduced cell viability. Olaparib combined with SB203580 significantly reduced error-free HR repair via reducing MRE11-RAD50 and promoted error-prone NHEJ repair by increasing Ku70-Ku80 leading to increased DNA damage-induced apoptosis. Notably, the alteration of proteins in HR/NHEJ pathways, DNA damage and induction of apoptosis was significant by combined treatment but not by 1 μM olaparib treatment alone. In addition, combined treatment reduced telomerase activity more than single treatment via reducing telomerase subunits. These data implicated that the anticancer potential of olaparib was significantly increased by combining SB203580 through increasing DNA damage-induced apoptosis and inhibiting telomerase activity.
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Affiliation(s)
- Payel Dey
- Department of Biochemistry & Biophysics, University of Kalyani, Kalyani, 741235, India
| | - Soumyajit Biswas
- Department of Biochemistry & Biophysics, University of Kalyani, Kalyani, 741235, India
| | - Rima Das
- Department of Biochemistry & Biophysics, University of Kalyani, Kalyani, 741235, India
| | - Sandipan Chatterjee
- Department of Biochemistry & Biophysics, University of Kalyani, Kalyani, 741235, India
| | - Utpal Ghosh
- Department of Biochemistry & Biophysics, University of Kalyani, Kalyani, 741235, India.
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4
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Wang D, Deng B, Cheng L, Li J, Zhang J, Zhang X, Guo X, Yan T, Yue X, An Y, Zhang B, Yang W, Xie J, Wang R. A novel and low-toxic peptide DR3penA alleviates pulmonary fibrosis by regulating the MAPK/miR-23b-5p/AQP5 signaling axis. Acta Pharm Sin B 2023; 13:722-738. [PMID: 36873181 PMCID: PMC9979266 DOI: 10.1016/j.apsb.2022.09.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 08/19/2022] [Accepted: 08/25/2022] [Indexed: 11/01/2022] Open
Abstract
Pulmonary fibrosis (PF) is a pathological change caused by repeated injuries and repair dysfunction of the alveolar epithelium. Our previous study revealed that the residues Asn3 and Asn4 of peptide DR8 (DHNNPQIR-NH2) could be modified to improve stability and antifibrotic activity, and the unnatural hydrophobic amino acids α-(4-pentenyl)-Ala and d-Ala were considered in this study. DR3penA (DHα-(4-pentenyl)-ANPQIR-NH2) was verified to have a longer half-life in serum and to significantly inhibit oxidative damage, epithelial-mesenchymal transition (EMT) and fibrogenesis in vitro and in vivo. Moreover, DR3penA has a dosage advantage over pirfenidone through the conversion of drug bioavailability under different routes of administration. A mechanistic study revealed that DR3penA increased the expression of aquaporin 5 (AQP5) by inhibiting the upregulation of miR-23b-5p and the mitogen-activated protein kinase (MAPK) pathway, indicating that DR3penA may alleviate PF by regulating MAPK/miR-23b-5p/AQP5. Safety evaluation showed that DR3penA is a peptide drug without obvious toxicity or acute side effects and has significantly improved safety compared to DR8. Thus, our findings suggest that DR3penA, as a novel and low-toxic peptide, has the potential to be a leading compound for PF therapy, which provides a foundation for the development of peptide drugs for fibrosis-related diseases.
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Affiliation(s)
- Dan Wang
- Institute of Materia Medica and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100050, China.,Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Bochuan Deng
- Institute of Materia Medica and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100050, China.,Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Lu Cheng
- Institute of Materia Medica and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100050, China.,Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Jieru Li
- Institute of Materia Medica and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100050, China.,Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Jiao Zhang
- Institute of Materia Medica and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100050, China.,Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Xiang Zhang
- Institute of Materia Medica and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100050, China.,Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Xiaomin Guo
- Institute of Materia Medica and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100050, China.,Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Tiantian Yan
- Institute of Materia Medica and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100050, China.,Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Xin Yue
- Institute of Materia Medica and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100050, China.,Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Yingying An
- Institute of Materia Medica and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100050, China.,Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Bangzhi Zhang
- Institute of Materia Medica and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100050, China.,Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Wenle Yang
- Institute of Materia Medica and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100050, China.,Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Junqiu Xie
- Institute of Materia Medica and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100050, China.,Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Rui Wang
- Institute of Materia Medica and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100050, China.,Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
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5
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Xia J, Tian Y, Shao Z, Li C, Ding M, Qi Y, Xu X, Dai K, Wu C, Yao W, Hao C. MALAT1-miR-30c-5p-CTGF/ATG5 axis regulates silica-induced experimental silicosis by mediating EMT in alveolar epithelial cells. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 249:114392. [PMID: 36508811 DOI: 10.1016/j.ecoenv.2022.114392] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 11/15/2022] [Accepted: 12/04/2022] [Indexed: 06/17/2023]
Abstract
Epithelial-mesenchymal transdifferentiation of alveolar type Ⅱ epithelial cells is a vital source of pulmonary myofibroblasts, and myofibroblasts formation is recognized as an important phase in the pathological process of silicosis. miR-30c-5p has been determined to be relevant in the activation of the epithelial-mesenchymal transition (EMT) in numerous disease processes. However, elucidating the role played by miR-30c-5p in the silicosis-associated EMT process remains a great challenge. In this work, based on the establishment of mouse silicosis and A549 cells EMT models, miR-30c-5p was interfered with in vivo and in vitro models to reveal its effects on EMT and autophagy. Moreover, metastasis-associated lung adenocarcinoma transcript 1 (MALAT1), connective tissue growth factor (CTGF), autophagy-related gene 5 (ATG5), and autophagy were further interfered with in the A549 cells models to uncover the possible molecular mechanism through which miR-30c-5p inhibits silicosis associated EMT. The results demonstrated the targeted binding of miR-30c-5p to CTGF, ATG5, and MALAT1, and showed that miR-30c-5p could prevent EMT in lung epithelial cells by acting on CTGF and ATG5-associated autophagy, thereby inhibiting the silicosis fibrosis process. Furthermore, we also found that lncRNA MALAT1 might competitively absorb miR-30c-5p and affect the EMT of lung epithelial cells. In a word, interfering with miR-30c-5p and its related molecules (MALAT1, CTGF, and ATG5-associated autophagy) may provide a reference point for the application of silicosis intervention-related targets.
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Affiliation(s)
- Jiarui Xia
- Department of Occupational and Environment Health, School of Public Health, Zhengzhou University, No. 100 Science Avenue 5, Zhengzhou 450001, Henan Province, PR China
| | - Yangyang Tian
- Department of Occupational and Environment Health, School of Public Health, Zhengzhou University, No. 100 Science Avenue 5, Zhengzhou 450001, Henan Province, PR China
| | - Zheng Shao
- The Third Affiliated Hospital of Zhengzhou University, Henan, PR China
| | - Chao Li
- Department of Occupational and Environment Health, School of Public Health, Zhengzhou University, No. 100 Science Avenue 5, Zhengzhou 450001, Henan Province, PR China
| | - Mingcui Ding
- Department of Occupational and Environment Health, School of Public Health, Zhengzhou University, No. 100 Science Avenue 5, Zhengzhou 450001, Henan Province, PR China
| | - Yuanmeng Qi
- Department of Occupational and Environment Health, School of Public Health, Zhengzhou University, No. 100 Science Avenue 5, Zhengzhou 450001, Henan Province, PR China
| | - Xiao Xu
- Department of Occupational and Environment Health, School of Public Health, Zhengzhou University, No. 100 Science Avenue 5, Zhengzhou 450001, Henan Province, PR China
| | - Kai Dai
- Department of Occupational and Environment Health, School of Public Health, Zhengzhou University, No. 100 Science Avenue 5, Zhengzhou 450001, Henan Province, PR China
| | - Chenchen Wu
- Department of Occupational and Environment Health, School of Public Health, Zhengzhou University, No. 100 Science Avenue 5, Zhengzhou 450001, Henan Province, PR China
| | - Wu Yao
- Department of Occupational and Environment Health, School of Public Health, Zhengzhou University, No. 100 Science Avenue 5, Zhengzhou 450001, Henan Province, PR China.
| | - Changfu Hao
- Department of Occupational and Environment Health, School of Public Health, Zhengzhou University, No. 100 Science Avenue 5, Zhengzhou 450001, Henan Province, PR China.
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6
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Wang T, Ou L, Li X, Zhang P, Miao Q, Niu R, Chen Y. Inhibition of Galectin-3 attenuates silica particles-induced silicosis via regulating the GSK-3β/β-catenin signal pathway-mediated epithelial-mesenchymal transition. Chem Biol Interact 2022; 368:110218. [DOI: 10.1016/j.cbi.2022.110218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 09/28/2022] [Accepted: 10/06/2022] [Indexed: 11/28/2022]
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7
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A Small Molecule That Promotes Cellular Senescence Prevents Fibrogenesis and Tumorigenesis. Int J Mol Sci 2022; 23:ijms23126852. [PMID: 35743290 PMCID: PMC9224374 DOI: 10.3390/ijms23126852] [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: 05/24/2022] [Revised: 06/16/2022] [Accepted: 06/18/2022] [Indexed: 12/04/2022] Open
Abstract
Uncontrolled proliferative diseases, such as fibrosis or cancer, can be fatal. We previously found that a compound containing the chromone scaffold (CS), ONG41008, had potent antifibrogenic effects associated with EMT or cell-cycle control resembling tumorigenesis. We investigated the effects of ONG41008 on tumor cells and compared these effects with those in pathogenic myofibroblasts. Stimulation of A549 (lung carcinoma epithelial cells) or PANC1 (pancreatic ductal carcinoma cells) with ONG41008 resulted in robust cellular senescence, indicating that dysregulated cell proliferation is common to fibrotic cells and tumor cells. The senescence was followed by multinucleation, a manifestation of mitotic slippage. There was significant upregulation of expression and rapid nuclear translocation of p-TP53 and p16 in the treated cancer cells, which thereafter died after 72 h confirmed by 6 day live imaging. ONG41008 exhibited a comparable senogenic potential to that of dasatinib. Interestingly, ONG41008 was only able to activate caspase-3, 7 in comparison with quercetin and fisetin, also containing CS in PANC1. ONG41008 did not seem to be essentially toxic to normal human lung fibroblasts or primary prostate epithelial cells, suggesting ONG41008 can distinguish the intracellular microenvironment between normal cells and aged or diseased cells. This effect might occur as a result of the increased NAD/NADH ratio, because ONG41008 restored this important metabolic ratio in cancer cells. Taken together, this is the first study to demonstrate that a small molecule can arrest uncontrolled proliferation during fibrogenesis or tumorigenesis via both senogenic and senolytic potential. ONG41008 could be a potential drug for a broad range of fibrotic or tumorigenic diseases.
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8
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Liu JJ, Liang Y, Zhang Y, Wu RX, Song YL, Zhang F, Shi JS, Liu J, Xu SF, Wang Z. GC-MS Profile of Hua-Feng-Dan and RNA-Seq Analysis of Induced Adaptive Responses in the Liver. Front Pharmacol 2022; 13:730318. [PMID: 35355721 PMCID: PMC8959110 DOI: 10.3389/fphar.2022.730318] [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: 06/24/2021] [Accepted: 01/19/2022] [Indexed: 01/17/2023] Open
Abstract
Background: Hua-Feng-Dan is a patent Chinese medicine for stroke recovery and various diseases. This study used GC-MS to profile its ingredients and RNA-Seq to analyze the induced adaptive response in the liver. Methods: Hua-Feng-Dan was subjected to steam distillation and solvent extraction, followed by GC-MS analysis. Mice were orally administered Hua-Feng-Dan and its "Guide drug" Yaomu for 7 days. Liver pathology was examined, and total RNA isolated for RNA-Seq, followed by bioinformatic analysis and quantitative real-time PCR (qPCR). Results: Forty-four volatile and fifty liposoluble components in Hua-Feng-Dan were profiled and analyzed by the NIST library and their concentrations quantified. The major components (>1%) in volatile (5) and liposoluble (10) were highlighted. Hua-Feng-Dan and Yaomu at hepatoprotective doses did not produce liver toxicity as evidenced by histopathology and serum enzyme activities. GO Enrichment revealed that Hua-Feng-Dan affected lipid homeostasis, protein folding, and cell adhesion. KEGG showed activated cholesterol metabolism, bile secretion, and PPAR signaling pathways. Differentially expressed genes (DEGs) were identified by DESeq2 with p < 0.05 compared to controls. Hua-Feng-Dan produced more DEGs than Yaomu. qPCR on selected genes largely verified RNA-Seq results. Ingenuity Pathways Analysis of the upstream regulator revealed activation of MAPK and adaptive responses by Hua-Feng-Dan, and Yaomu was less effective. Hua-Feng-Dan-induced DEGs were highly correlated with the Gene Expression Omnibus database of chemical-induced adaptive transcriptome changes in the liver. Conclusion: GC-MS primarily profiled volatile and liposoluble components in Hua-Feng-Dan. Hua-Feng-Dan at the hepatoprotective dose did not produce liver pathological changes but induced metabolic and signaling pathway activations. The effects of Hua-Feng-Dan on liver transcriptome changes point toward induced adaptive responses to program the liver to produce hepatoprotective effects.
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Affiliation(s)
- Jia-Jia Liu
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnocentric of Ministry of Education, Zunyi Medical University, Zunyi, China
| | - Yan Liang
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Ya Zhang
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnocentric of Ministry of Education, Zunyi Medical University, Zunyi, China
| | - Rui-Xia Wu
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Ying-Lian Song
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Feng Zhang
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnocentric of Ministry of Education, Zunyi Medical University, Zunyi, China
| | - Jing-Shan Shi
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnocentric of Ministry of Education, Zunyi Medical University, Zunyi, China
| | - Jie Liu
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnocentric of Ministry of Education, Zunyi Medical University, Zunyi, China
| | - Shang-Fu Xu
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnocentric of Ministry of Education, Zunyi Medical University, Zunyi, China
| | - Zhang Wang
- College of Ethnomedicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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9
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Chow SKH, Cui C, Cheng KYK, Chim YN, Wang J, Wong CHW, Ng KW, Wong RMY, Cheung WH. Acute Inflammatory Response in Osteoporotic Fracture Healing Augmented with Mechanical Stimulation is Regulated In Vivo through the p38-MAPK Pathway. Int J Mol Sci 2021; 22:ijms22168720. [PMID: 34445423 PMCID: PMC8395718 DOI: 10.3390/ijms22168720] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 08/11/2021] [Accepted: 08/12/2021] [Indexed: 01/01/2023] Open
Abstract
Low-magnitude high-frequency vibration (LMHFV) has previously been reported to modulate the acute inflammatory response of ovariectomy-induced osteoporotic fracture healing. However, the underlying mechanisms are not clear. In the present study, we investigated the effect of LMHFV on the inflammatory response and the role of the p38 MAPK mechanical signaling pathway in macrophages during the healing process. A closed femoral fracture SD rat model was used. In vivo results showed that LMHFV enhanced activation of the p38 MAPK pathway at the fracture site. The acute inflammatory response, expression of inflammatory cytokines, and callus formation were suppressed in vivo by p38 MAPK inhibition. However, LMHFV did not show direct in vitro enhancement effects on the polarization of RAW264.7 macrophage from the M1 to M2 phenotype, but instead promoted macrophage enlargement and transformation to dendritic monocytes. The present study demonstrated that p38 MAPK modulated the enhancement effects of mechanical stimulation in vivo only. LMHFV may not have exerted its enhancement effects directly on macrophage, but the exact mechanism may have taken a different pathway that requires further investigation in the various subsets of immune cells.
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Affiliation(s)
- Simon Kwoon Ho Chow
- Correspondence: (S.K.H.C.); (W.H.C.); Tel.: +852-3505-1559 (S.K.H.C.); +852-3505-2715 (W.H.C.)
| | | | | | | | | | | | | | | | - Wing Hoi Cheung
- Correspondence: (S.K.H.C.); (W.H.C.); Tel.: +852-3505-1559 (S.K.H.C.); +852-3505-2715 (W.H.C.)
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10
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Xie Y, Ma J, Yang M, Fan L, Chen W. Extracellular signal-regulated kinase signaling pathway and silicosis. Toxicol Res (Camb) 2021; 10:487-494. [PMID: 34141162 DOI: 10.1093/toxres/tfaa109] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 11/16/2020] [Accepted: 12/11/2020] [Indexed: 12/15/2022] Open
Abstract
Silicosis is a scarring lung disease caused by inhaling fine particles of crystalline silica in the workplace of many industries. Due to the lack of effective treatment and management, the continued high incidence of silicosis remains a major public health concern worldwide, especially in the developing countries. Till now, related molecular mechanisms underlying silicosis are still not completely understood. Multiple pathways have been reported to be participated in the pathological process of silicosis, and more complex signaling pathways are receiving attention. The activated extracellular signal-regulated kinase (ERK) signaling pathway has been recognized to control some functions in the cell. Recent studies have identified that the ERK signaling pathway contributes to the formation and development of silicosis through regulating the processes of oxidative stress, inflammatory response, proliferation and activation of fibroblasts, epithelial-mesenchymal transformation, autophagy, and apoptosis of cells. In this review article, we summarize the latest findings on the role of ERK signaling pathway in silica-induced experimental models of silicosis, as well as clinical perspectives.
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Affiliation(s)
- Yujia Xie
- Department of Occupational & Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.,Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Jixuan Ma
- Department of Occupational & Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.,Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Meng Yang
- Department of Occupational & Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.,Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Lieyang Fan
- Department of Occupational & Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.,Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Weihong Chen
- Department of Occupational & Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.,Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
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11
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Jo JH, Park HS, Lee DH, Han JH, Heo KS, Myung CS. Rosuvastatin Inhibits the Apoptosis of Platelet-Derived Growth Factor-Stimulated Vascular Smooth Muscle Cells by Inhibiting p38 via Autophagy. J Pharmacol Exp Ther 2021; 378:10-19. [PMID: 33846234 DOI: 10.1124/jpet.121.000539] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 04/06/2021] [Indexed: 12/13/2022] Open
Abstract
The secretion of platelet-derived growth factors (PDGFs) into vascular smooth muscle cells (VSMCs) induced by specific stimuli, such as oxidized low-density lipoprotein (LDL) cholesterol, initially increases the proliferation and migration of VSMCs, and continuous stimulation leads to VSMC apoptosis, resulting in the formation of atheroma. Autophagy suppresses VSMC apoptosis, and statins can activate autophagy. Thus, this study aimed to investigate the mechanism of the autophagy-mediated vasoprotective activity of rosuvastatin, one of the most potent statins, in VSMCs continuously stimulated with PDGF-BB, a PDGF isoform, at a high concentration (100 ng/ml) to induce phenotypic switching of VSMC. Rosuvastatin inhibited apoptosis in a concentration-dependent manner by reducing cleaved caspase-3 and interleukin-1β (IL-1β) levels and reduced intracellular reactive oxygen species (ROS) levels in PDGF-stimulated VSMCs. It also inhibited PDGF-induced p38 phosphorylation and increased the expression of microtubule-associated protein light chain 3 (LC3) and the conversion of LC3-I to LC3-II in PDGF-stimulated VSMCs. The ability of rosuvastatin to inhibit apoptosis and p38 phosphorylation was suppressed by treatment with 3-methyladenine (an autophagy inhibitor) but promoted by rapamycin (an autophagy activator) treatment. SB203580, a p38 inhibitor, reduced the PDGF-induced increase in intracellular ROS levels and inhibited the formation of cleaved caspase-3, indicating the suppression of apoptosis. In carotid ligation model mice, rosuvastatin decreased the thickness and area of the intima and increased the area of the lumen. In conclusion, our observations suggest that rosuvastatin inhibits p38 phosphorylation through autophagy and subsequently reduces intracellular ROS levels, leading to its vasoprotective activity. SIGNIFICANCE STATEMENT: This study shows the mechanism responsible for the vasoprotective activity of rosuvastatin in vascular smooth muscle cells under prolonged platelet-derived growth factor stimulation. Rosuvastatin inhibits p38 activation through autophagy, thereby suppressing intracellular reactive oxygen species levels, leading to the inhibition of apoptosis and reductions in the intima thickness and area. Overall, these results suggest that rosuvastatin can be used as a novel treatment to manage chronic vascular diseases such as atherosclerosis.
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Affiliation(s)
- Jun-Hwan Jo
- Department of Pharmacology, Chungnam National University College of Pharmacy, Daejeon, Republic of Korea
| | - Hyun-Soo Park
- Department of Pharmacology, Chungnam National University College of Pharmacy, Daejeon, Republic of Korea
| | - Do-Hyung Lee
- Department of Pharmacology, Chungnam National University College of Pharmacy, Daejeon, Republic of Korea
| | - Joo-Hui Han
- Department of Pharmacology, Chungnam National University College of Pharmacy, Daejeon, Republic of Korea
| | - Kyung-Sun Heo
- Department of Pharmacology, Chungnam National University College of Pharmacy, Daejeon, Republic of Korea
| | - Chang-Seon Myung
- Department of Pharmacology, Chungnam National University College of Pharmacy, Daejeon, Republic of Korea
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12
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Zhao Q, Hao C, Wei J, Huang R, Li C, Yao W. Bone marrow-derived mesenchymal stem cells attenuate silica-induced pulmonary fibrosis by inhibiting apoptosis and pyroptosis but not autophagy in rats. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 216:112181. [PMID: 33848736 DOI: 10.1016/j.ecoenv.2021.112181] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 03/17/2021] [Accepted: 03/21/2021] [Indexed: 06/12/2023]
Abstract
This study aimed to investigate the effect of bone marrow-derived mesenchymal stem cells (BMSCs) on silica-induced lung fibrosis in a rat model. Thirty SD rats were randomly divided into three groups: control group, silica group, and BMSC group (n = 10 rats per group). BMSCs were injected successively into rats on the 14th, 28th, and 42nd days after silica exposure. All rats were sacrificed 56 days after silica exposure. We detected the pathological and fibrotic changes, apoptosis, autophagy, and pyroptosis in their lung tissue by histopathological examination, hydroxyproline content assays, real-time quantitative polymerase chain reactions, western blot assays, immunohistochemistry staining, immunofluorescence staining, and enzyme-linked immunosorbent assays. We found that BMSCs significantly relieved lung inflammatory infiltrates, collagen deposition, hydroxyproline content, and the mRNA and protein levels of collagen 1 and fibronectin. Compared to the silica group, in the BMSC group, apoptosis-associated proteins, including cleaved caspase 3 and Bax, were significantly downregulated, and Bcl-2/Bax was significantly upregulated; pyroptosis-related proteins, including Nlrp3, cleaved caspase 1, IL-1β, and IL-18, were significantly reduced. However, the BMSCs had no significant impact on autophagy-related proteins, including Beclin 1, P62, and LC3. In summary, BMSCs protected lung tissue against severe fibrosis by inhibiting apoptosis and pyroptosis but not autophagy.
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Affiliation(s)
- Qiuyan Zhao
- Department of Occupational Health and Environmental Health, College of Public Health, Zhengzhou University, Zhengzhou 450001, Henan, China
| | - Changfu Hao
- Department of Occupational Health and Environmental Health, College of Public Health, Zhengzhou University, Zhengzhou 450001, Henan, China
| | - Jingjing Wei
- Department of Occupational Health and Environmental Health, College of Public Health, Zhengzhou University, Zhengzhou 450001, Henan, China
| | - Ruoxuan Huang
- Department of Occupational Health and Environmental Health, College of Public Health, Zhengzhou University, Zhengzhou 450001, Henan, China
| | - Chao Li
- Department of Occupational Health and Environmental Health, College of Public Health, Zhengzhou University, Zhengzhou 450001, Henan, China
| | - Wu Yao
- Department of Occupational Health and Environmental Health, College of Public Health, Zhengzhou University, Zhengzhou 450001, Henan, China.
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13
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Dahuang Zhechong Pills Suppress Silicosis Fibrosis Progression via p38 MAPK/TGF- β1/Smad Pathway In Vitro. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:6662261. [PMID: 33868442 PMCID: PMC8034999 DOI: 10.1155/2021/6662261] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Revised: 03/06/2021] [Accepted: 03/18/2021] [Indexed: 11/17/2022]
Abstract
Background Dahuang Zhechong pills (DHZCP) is a classic Chinese medicinal prescription in “Treatise on Cold Pathogenic and Miscellaneous Diseases (Shanghan Zabing Lun),” and it has the function of tonifying blood, nourishing Yin, and removing blood stasis. Previous studies have shown that DHZCP could alleviate SiO2 induced pulmonary fibrosis in mice. This study aims to further explore the preventive and therapeutic effects of DHZCP against silicosis fibrosis and the underlying mechanisms in vitro. Methods We used the experimental model of SiO2-induced MH-S cells to evaluate the therapeutic potential of DHZCP. MH-S cells induced by SiO2 were intervened with the drug-containing serum of DHZCP, and the effects of drug-containing serum of DHZCP on the MH-S cells were detected by CCK8, ELISA, flow cytometry, western blot, and immunofluorescence. Results DHZCP improved cell viability by reducing apoptosis. It also decreased the levels of TNF-α, IL-1β, IL-6 in the supernatant of MH-S cells induced by SiO2, inhibited the expression of p38 MAPK, blocked the activation of NF-κB, and controlled the upstream inflammatory response by multiple targeting. Concomitantly, we observed upregulation of Smad7 and a marked decline in TGF-β1, α-SMA, Smad2, Smad3 expression in MH-S cells treated with DHZCP. Conclusion To sum up, we conclude that DHZCP protects against SiO2-induced silicosis by reducing the persistent irritation of inflammation, regulating the p38 MAPK/TGF-β1/Smad pathway.
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14
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Wang Y, Li S, Zhao J, Li Q, Xu C, Wu H, Zhu Z, Tian L. Snail-mediated partial epithelial mesenchymal transition augments the differentiation of local lung myofibroblast. CHEMOSPHERE 2021; 267:128870. [PMID: 33172668 DOI: 10.1016/j.chemosphere.2020.128870] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 10/08/2020] [Accepted: 11/02/2020] [Indexed: 06/11/2023]
Abstract
The pathogenesis of pulmonary fibrosis diseases is considered to be related with environmental exposures, but the exact mechanism is unclear and there are no effective treatments. The contribution of epithelial-mesenchymal transition (EMT) to lung fibrosis has been controversial. It was found that partial EMT might play a vital role in renal fibrosis. We also found that partial EMT might be involved in fibrosis diseases. In this study, we used a silicosis animal model of pulmonary fibrosis to observe whether partial EMT existed in pulmonary fibrosis disease and a co-culture system culturing fibroblasts and alveolar epithelial cells stimulated by TGF-β1 to evaluate the probable effects of partial EMT, thus determined the probable role of partial EMT in pulmonary fibrosis diseases. In vivo, the results revealed that partial EMT might exist in silica-induced lung fibrosis model and Snail which is a potent EMT inducer was involved during the process. In vitro, a co-culture system was used to evaluate the effects of EMT in murine alveolar epithelial type II (ATII) cells on the activation of underlying murine lung fibroblasts into myofibroblasts. The results showed that epithelial cells undergoing EMT promoted the differentiation of lung myofibroblast and this epithelial-mesenchymal crosstalk was mainly controlled by Snail. Following Snail silencing the EMT and the activation of NIH-3T3 into myofibroblast were obviously inhibited. It indicated that targeting this novel Snail might be a viable strategy for the treatment of lung fibrosis diseases.
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Affiliation(s)
- Yan Wang
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, 100069, Beijing, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, China
| | - Siling Li
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, 100069, Beijing, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, China
| | - Jing Zhao
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, 100069, Beijing, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, China
| | - Qiuyue Li
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, 100069, Beijing, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, China
| | - Chunjie Xu
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, 100069, Beijing, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, China
| | - Huihui Wu
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, 100069, Beijing, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, China
| | - Zhonghui Zhu
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, 100069, Beijing, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, China.
| | - Lin Tian
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, 100069, Beijing, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, China.
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15
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Dong H, Yang J, Wang Y, Jiang Y, Chen J, Zhang W, Lu Y, Chen L, Chen Y. Polysaccharide SAFP from Sarcodon aspratus attenuates oxidative stress-induced cell damage and bleomycin-induced pulmonary fibrosis. Int J Biol Macromol 2020; 164:1215-1236. [DOI: 10.1016/j.ijbiomac.2020.07.120] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 05/20/2020] [Accepted: 07/11/2020] [Indexed: 01/06/2023]
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16
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Cao Z, Song M, Liu Y, Pang J, Li Z, Qi X, Shu T, Li B, Wei D, Chen J, Li B, Wang J, Wang C. A novel pathophysiological classification of silicosis models provides some new insights into the progression of the disease. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 202:110834. [PMID: 32622305 DOI: 10.1016/j.ecoenv.2020.110834] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 05/27/2020] [Accepted: 05/30/2020] [Indexed: 06/11/2023]
Abstract
Silicosis is caused by massive inhalation of silica-based particles, which leads to pulmonary inflammation, pulmonary fibrosis and lung dysfunction. Currently, the pathophysiological process of silicosis has not been well studied. Here, we defined the progression of silicosis as four stages by unsupervised clustering analysis: normal stage, inflammatory stage, progressive stage and fibrotic stage. Specifically, in normal stage, the lung function was normal, and no inflammation or fibrosis was detected in the lung tissue. Inflammatory stage showed a remarkable pulmonary inflammation but mild fibrosis and lung dysfunction. In progressive stage, significant lung dysfunction was observed, while pulmonary inflammation and fibrosis continued to deteriorate. Fibrotic stage revealed the most severe pulmonary fibrosis and lung dysfunction but no significant deterioration in inflammation. Since the common features were founded in both silicosis patients and rodents, we speculated that the pathophysiological processes of silicosis in patients might be similar to the rodents. Collectively, our new classification identified the process of silicosis, clarified the pathophysiological features of each stage, and provided some new insights for the progression of the disease.
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Affiliation(s)
- Zhujie Cao
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Department of Pathophysiology, Peking Union Medical College, Beijing, China
| | - Meiyue Song
- Beijing University of Chinese Medicine, Beijing, China; Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing, China; National Clinical Research Center for Respiratory Diseases, Beijing, China
| | - Ying Liu
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Department of Pathophysiology, Peking Union Medical College, Beijing, China
| | - Junling Pang
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Department of Pathophysiology, Peking Union Medical College, Beijing, China
| | - Zhaoguo Li
- Department of Respiratory, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Xianmei Qi
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Department of Pathophysiology, Peking Union Medical College, Beijing, China
| | - Ting Shu
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Department of Pathophysiology, Peking Union Medical College, Beijing, China
| | - Baicun Li
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Department of Pathophysiology, Peking Union Medical College, Beijing, China
| | - Dong Wei
- The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, China
| | - Jingyu Chen
- The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, China
| | - Bolun Li
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Department of Pathophysiology, Peking Union Medical College, Beijing, China
| | - Jing Wang
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Department of Pathophysiology, Peking Union Medical College, Beijing, China.
| | - Chen Wang
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Department of Pathophysiology, Peking Union Medical College, Beijing, China; Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing, China; National Clinical Research Center for Respiratory Diseases, Beijing, China.
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17
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Baghaki S, Yalcin CE, Baghaki HS, Aydin SY, Daghan B, Yavuz E. COX2 inhibition in the treatment of COVID-19: Review of literature to propose repositioning of celecoxib for randomized controlled studies. Int J Infect Dis 2020; 101:29-32. [PMID: 33007455 PMCID: PMC7525269 DOI: 10.1016/j.ijid.2020.09.1466] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 09/23/2020] [Accepted: 09/24/2020] [Indexed: 12/14/2022] Open
Abstract
Coronavirus-triggered pulmonary and systemic disease, i.e. systemic inflammatory response to virally triggered lung injury, named COVID-19, and ongoing discussions on refining immunomodulation in COVID-19 without COX2 inhibition prompted us to search the related literature to show a potential target (COX2) and a weapon (celecoxib). The concept of selectively targeting COX2 and closely related cascades might be worth trying in the treatment of COVID-19 given the substantial amount of data showing that COX2, p38 MAPK, IL-1b, IL-6 and TGF-β play pivotal roles in coronavirus-related cell death, cytokine storm and pulmonary interstitial fibrosis. Considering the lack of definitive treatment and importance of immunomodulation in COVID-19, COX2 inhibition might be a valuable adjunct to still-evolving treatment strategies. Celecoxib has properties that should be evaluated in randomized controlled studies and is also available for off-label use.
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Affiliation(s)
- Semih Baghaki
- Istanbul University Cerrahpasa - Cerrahpasa Medical Faculty, Department of Plastic, Reconstructive and Aesthetic Surgery, Istanbul, Turkey.
| | - Can Ege Yalcin
- Istanbul University Cerrahpasa - Cerrahpasa Medical Faculty, Department of Plastic, Reconstructive and Aesthetic Surgery, Istanbul, Turkey
| | - Hayriye Sema Baghaki
- Bakirkoy Sadi Konuk Research and Training Hospital, Department of Obstetrics and Gynecology, Istanbul, Turkey
| | - Servet Yekta Aydin
- Istanbul University Cerrahpasa - Cerrahpasa Medical Faculty, Department of Plastic, Reconstructive and Aesthetic Surgery, Istanbul, Turkey
| | - Basak Daghan
- Istanbul University Cerrahpasa - Cerrahpasa Medical Faculty, Department of Plastic, Reconstructive and Aesthetic Surgery, Istanbul, Turkey
| | - Ersin Yavuz
- Istanbul University Cerrahpasa - Cerrahpasa Medical Faculty, Department of Plastic, Reconstructive and Aesthetic Surgery, Istanbul, Turkey
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18
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Cordyceps cicadae polysaccharides ameliorated renal interstitial fibrosis in diabetic nephropathy rats by repressing inflammation and modulating gut microbiota dysbiosis. Int J Biol Macromol 2020; 163:442-456. [PMID: 32592781 DOI: 10.1016/j.ijbiomac.2020.06.153] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 06/11/2020] [Accepted: 06/17/2020] [Indexed: 12/28/2022]
Abstract
Diabetic nephropathy (DN), a complication of diabetes mellitus, has been the leading cause of death in people with chronic kidney disease. This study was conducted to examine the potential health benefits of Cordyceps cicadae polysaccharides (CCP) on kidney injury and renal interstitial fibrosis that occur in DN rats. First, a DN model was established using SD rats fed with a high-fat diet for 8 weeks, then injected with STZ (35 mg/kg) intraperitoneally. The rats were then supplemented with CCP (75, 150 and 300 mg/kg) for 4 weeks. The results indicated that CCP improve insulin resistance and glucose tolerance in DN rats. Furthermore, CCP intervention significantly suppressed the inflammation, renal pathological changes and renal dysfunction, slowing down the progression of renal interstitial fibrosis. Moreover, high-throughput pyrosequencing of 16S rRNA suggested that CCP modulated the dysbiosis of gut microbiota by enhancing the relative abundance and proliferation capacity of probiotics. In vitro, CCP can markedly decrease LPS-induced inflammatory cytokine levels and TGF-β1-induced fibroblast activation. In summary, the results provided evidence that CCP exerted a beneficial effect on tubulointerstitial fibrosis in DN rats by possibly suppressing the inflammatory response and modulating gut microbiota dysbiosis, via blocking the TLR4/NF-κB and TGF-β1/Smad signaling pathway.
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19
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Richardson LS, Taylor RN, Menon R. Reversible EMT and MET mediate amnion remodeling during pregnancy and labor. Sci Signal 2020; 13:13/618/eaay1486. [PMID: 32047115 DOI: 10.1126/scisignal.aay1486] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The amnion is remodeled during pregnancy to protect the growing fetus it contains, and it is particularly dynamic just before and during labor. By combining ultrastructural, immunohistochemical, and Western blotting analyses, we found that human and mouse amnion membranes during labor were subject to epithelial-to-mesenchymal transition (EMT), mediated, in part, by the p38 mitogen-activated protein kinase (MAPK) pathway responding to oxidative stress. Primary human amnion epithelial cell cultures established from amnion membranes from nonlaboring, cesarean section deliveries exhibited EMT after exposure to oxidative stress, and the pregnancy maintenance hormone progesterone (P4) reversed this process. Oxidative stress or transforming growth factor-β (TGF-β) stimulated EMT in a manner that depended on TGF-β-activated kinase 1 binding protein 1 (TAB1) and p38 MAPK. P4 stimulated the reverse transition, MET, in primary human amnion mesenchymal cells (AMCs) through progesterone receptor membrane component 2 (PGRMC2) and c-MYC. Our results indicate that amnion membrane cells dynamically transition between epithelial and mesenchymal states to maintain amnion integrity and repair membrane damage, as well as in response to inflammation and mechanical damage to protect the fetus until parturition. An irreversible EMT and the accumulation of AMCs characterize the amnion membranes at parturition.
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Affiliation(s)
- Lauren S Richardson
- Division of Maternal-Fetal Medicine and Perinatal Research, Department of Obstetrics and Gynecology, University of Texas Medical Branch at Galveston, Galveston, TX, USA.,Department of Neuroscience, Cell Biology and Anatomy, University of Texas Medical Branch at Galveston, Galveston, TX, USA
| | - Robert N Taylor
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, University of Utah, Salt Lake City, UT, USA
| | - Ramkumar Menon
- Division of Maternal-Fetal Medicine and Perinatal Research, Department of Obstetrics and Gynecology, University of Texas Medical Branch at Galveston, Galveston, TX, USA.
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20
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Yin ZF, Wei YL, Wang X, Wang LN, Li X. Buyang Huanwu Tang inhibits cellular epithelial-to-mesenchymal transition by inhibiting TGF-β1 activation of PI3K/Akt signaling pathway in pulmonary fibrosis model in vitro. BMC Complement Med Ther 2020; 20:13. [PMID: 32020862 PMCID: PMC7076841 DOI: 10.1186/s12906-019-2807-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2019] [Accepted: 12/23/2019] [Indexed: 11/28/2022] Open
Abstract
Background Pulmonary fibrosis (PF) is a chronic and progressive interstitial lung disease. Buyang Huanwu Tang (BYHWT), a classical traditional Chinese medicine formula, has been widely utilized for the treatment of PF in China. This present study aimed to explore the mechanism of BYHWT in the treatment of PF in vitro. Methods TGF-β1 stimulated human alveolar epithelial A549 cells were used as in vitro model for PF. Post the treatment of BYHWT, cell viability was measured by MTT assay, and cell morphology was observed under microscope. The epithelial-to-mesenchymal transition (EMT) markers (E-cadherin, Vimentin) and collagen I (Col I) were detected by western blot, immunofluorescence staining and real-time quantitative polymerase chain reaction. With the co-administration of activators (IGF-1, SC79) and inhibitors (LY294002, MK2206), the effect of BYHWT on PI3K/Akt pathway was analyzed by western blot. Results BYHWT inhibited cell growth, and prevented cell morphology changed from epithelial to fibroblasts in TGF-β1 induced A549 cells. BYHWT decreased Vimentin and Col I, while increased E-cadherin at both protein and mRNA levels. Moreover, phosphorylation of PI3K (p-PI3K) and phosphorylation of Akt (p-Akt) were significantly down-regulated by BYHWT in TGF-β1 stimulated A549 cells. Conclusion These results indicate that BYHWT suppressed TGF-β1-induced collagen accumulation and EMT of A549 cells by inhibiting the PI3K/Akt signaling pathway. These findings suggest that BYHWT may have potential for the treatment of PF.
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Affiliation(s)
- Zi-Fei Yin
- Department of Traditional Chinese Medicine, Changhai Hospital, The Second Military Medical University, No.168 Changhai Road, Shanghai, 200433, China
| | - Yang-Lin Wei
- Department of Traditional Chinese Medicine, Changhai Hospital, The Second Military Medical University, No.168 Changhai Road, Shanghai, 200433, China.,Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, No.358 Datong Road, Shanghai, 200137, China
| | - Xuan Wang
- Department of Traditional Chinese Medicine, Changhai Hospital, The Second Military Medical University, No.168 Changhai Road, Shanghai, 200433, China
| | - Li-Na Wang
- Department of Traditional Chinese Medicine, Changhai Hospital, The Second Military Medical University, No.168 Changhai Road, Shanghai, 200433, China.
| | - Xia Li
- Department of Traditional Chinese Medicine, Changhai Hospital, The Second Military Medical University, No.168 Changhai Road, Shanghai, 200433, China.
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21
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Zhou RX, Li YY, Qu Y, Huang Q, Sun XM, Mu DZ, Li XH. Regulation of hippocampal neuronal apoptosis and autophagy in mice with sepsis-associated encephalopathy by immunity-related GTPase M1. CNS Neurosci Ther 2019; 26:177-188. [PMID: 31612615 PMCID: PMC6978258 DOI: 10.1111/cns.13229] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 09/24/2019] [Accepted: 09/27/2019] [Indexed: 12/15/2022] Open
Abstract
Aims Sepsis‐associated encephalopathy (SAE) is a common complication of severe sepsis. Our goal was to investigate the role of immunity‐related GTPase M1 (IRGM1) in SAE and its underlying mechanism. Methods A mouse sepsis model was established by cecal ligation and perforation. SAE was diagnosed by behavior, electroencephalography, and somatosensory evoked potentials. Wild‐type mice with SAE were treated with SB203580 to block the p38 mitogen‐activated protein kinase (MAPK) signaling pathway. We assessed hippocampal histological changes and the expression of IRGM1, interferon‐γ (IFN‐γ), and p38 MAPK signaling pathway‐related proteins. Results Immunity‐related GTPase M1 and IFN‐γ levels increased in the hippocampus, with apoptosis, autophagy, and the p38 MAPK signaling pathway activated in neurons. Administration of SB203580 to mice with SAE reduced apoptosis and autophagy. Relative to wild‐type mice with SAE, the general condition of Irgm1‐/‐ mice with SAE was worsened, the p38 MAPK signaling pathway was inhibited, and neuronal apoptosis and autophagy were reduced. The absence of IRGM1 exacerbated SAE, with higher p38 MAPK signaling pathway activity and increased apoptosis and autophagy. Conclusions During SAE, IRGM1 can at least partially regulate apoptosis and autophagy in hippocampal neurons through the p38 MAPK signaling pathway.
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Affiliation(s)
- Rui-Xi Zhou
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, China.,Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
| | - Yu-Yao Li
- Clinical Medical College, Xiamen University, Xiamen, China
| | - Yi Qu
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, China.,Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
| | - Qun Huang
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, China.,Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
| | - Xue-Mei Sun
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, China.,Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
| | - De-Zhi Mu
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, China.,Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
| | - Xi-Hong Li
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, China.,Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
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22
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Wang D, Yan Z, Bu L, An C, Deng B, Zhang J, Rao J, Cheng L, Zhang J, Zhang B, Xie J. Protective effect of peptide DR8 on bleomycin-induced pulmonary fibrosis by regulating the TGF-β/MAPK signaling pathway and oxidative stress. Toxicol Appl Pharmacol 2019; 382:114703. [PMID: 31398421 DOI: 10.1016/j.taap.2019.114703] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 08/02/2019] [Accepted: 08/05/2019] [Indexed: 02/06/2023]
Abstract
Pulmonary fibrosis (PF) is a fatal and irreversible lung disease that eventually causes respiratory failure, lung dysfunction and death. The peptide DHNNPQIR-NH2 (DR8) has been reported to possess potent antioxidant activity, and an imbalance of oxidation/antioxidation is a crucial mechanism that causes PF. Here, we studied the ability of DR8 to improve PF and further explored the pathway in which DR8 plays a critical role. We found that after prophylactic or therapeutic treatment with DR8, fibrosis-associated indices, including marker proteins, proinflammatory cytokines and profibrogenic cytokines, were significantly downregulated. Importantly, DR8 could reduce bleomycin-induced pathological changes and collagen deposition, especially collagen I content. Furthermore, DR8 prominently upregulated nonenzymatic antioxidants and enzymatic antioxidants. Consistent with the in vivo results, we observed that DR8 significantly inhibited the proliferation and reactive oxygen species (ROS) generation of A549 cells and NIH3T3 cells stimulated with transforming growth factor-β1 (TGF-β1), as well as decreased NADPH oxidase 4 (NOX4) levels under the same conditions. Moreover, DR8 reversed the TGF-β1-induced upregulation of phosphorylated ERK1/2 and p38 MAPK in cells and the bleomycin-induced upregulation of these indices in mice. Our results indicate that DR8 could prevent and treat PF by reducing oxidative damage and suppressing the TGF-β/MAPK pathway. Because of the high efficiency and low toxicity of DR8, we consider that DR8 could be a candidate drug for PF, and our studies establish a foundation for the development of a lead compound to be used as a therapy for fibrosis-related diseases.
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Affiliation(s)
- Dan Wang
- School of Life Sciences, Lanzhou University, Lanzhou 730000, China
| | - Zhibin Yan
- School of Life Sciences, Lanzhou University, Lanzhou 730000, China
| | - Lili Bu
- School of Life Sciences, Lanzhou University, Lanzhou 730000, China
| | - Chunmei An
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, Institute of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Bochuan Deng
- School of Life Sciences, Lanzhou University, Lanzhou 730000, China
| | - Jianfeng Zhang
- School of Life Sciences, Lanzhou University, Lanzhou 730000, China
| | - Jing Rao
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, Institute of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Lu Cheng
- School of Life Sciences, Lanzhou University, Lanzhou 730000, China
| | - Jingying Zhang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, Institute of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Bangzhi Zhang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, Institute of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China.
| | - Junqiu Xie
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, Institute of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China.
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23
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Therapeutic effects of scavenger receptor MARCO ligand on silica-induced pulmonary fibrosis in rats. Toxicol Lett 2019; 311:1-10. [PMID: 31028789 DOI: 10.1016/j.toxlet.2019.04.026] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 04/10/2019] [Accepted: 04/22/2019] [Indexed: 02/06/2023]
Abstract
Pulmonary fibrosis induced by prolonged exposure to silica particles is a chronic and irreversible lung disease without effective treatment till now. Our previous study has shown that early intervention with MARCO antagonist PolyG could alleviate pulmonary fibrosis in silica-exposed rats. However, the therapeutic effects of PolyG on silica-induced pulmonary fibrosis have rarely been reported. In this study, we explored the effects of administration (on the 28th day after silica exposure) of PolyG (MARCO inhibitor) on an established rat silicosis model. The lungs were analyzed histopathologically in rats using HE and Masson staining. The silica-induced ERS-related apoptosis, EMT and fibrosis were evaluated using western blotting, qRT-PCR and immunohistochemical analyses. The results suggested that silica exposure could increase the MARCO activity, and induce ERS and EMT in lung tissues. Pharmacological targeting of MARCO with PolyG attenuated the development of pulmonary fibrosis in silica-exposed rats. Further study indicated that PolyG could inhibit silica-induced ERS-related apoptosis and EMT process. Together, our findings reveal an essential function of ERS-related apoptosis and EMT in the processes of pulmonary fibrosis caused by silica, and identify MARCO as a potential therapeutic pharmacological target for silicosis.
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24
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Pirfenidone inhibits epithelial-mesenchymal transition and pulmonary fibrosis in the rat silicosis model. Toxicol Lett 2019; 300:59-66. [DOI: 10.1016/j.toxlet.2018.10.019] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 09/04/2018] [Accepted: 10/17/2018] [Indexed: 12/24/2022]
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25
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Sun J, Li Q, Lian X, Zhu Z, Chen X, Pei W, Li S, Abbas A, Wang Y, Tian L. MicroRNA-29b Mediates Lung Mesenchymal-Epithelial Transition and Prevents Lung Fibrosis in the Silicosis Model. MOLECULAR THERAPY-NUCLEIC ACIDS 2018; 14:20-31. [PMID: 30529807 PMCID: PMC6282658 DOI: 10.1016/j.omtn.2018.10.017] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 10/31/2018] [Accepted: 10/31/2018] [Indexed: 12/30/2022]
Abstract
Lung epithelial-mesenchymal transition (EMT) plays an important role in silicosis fibrosis. The reverse process of EMT is mesenchymal-epithelial transition (MET), which is viewed as an anti-EMT therapy and is a good target toward fibrosis. MicroRNAs (miRNAs) have emerged as potent regulators of EMT and MET programs, and, hence, we tested the miRNA expression using microarray assay and investigated their roles in silica-induced EMT in lung epithelial cells. We found that miRNA-29b (miR-29b) was dynamically downregulated by silica and influenced the promotion of MET in RLE-6TN cells. Furthermore, delivery of miR-29b to mice significantly inhibited silica-induced EMT, prevented lung fibrosis, and improved lung function. Together, our results clearly demonstrated that miR-29b acted as a novel negative regulator of silicosis fibrosis-inhibited lung fibrosis, probably by promoting MET and by suppressing EMT in the lung. These findings may represent a new potential therapeutic target for treating silicosis fibrosis.
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Affiliation(s)
- Jingping Sun
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China
| | - Qiuyue Li
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China
| | - Ximeng Lian
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China
| | - Zhonghui Zhu
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China
| | - Xiaowei Chen
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China
| | - Wanying Pei
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China
| | - Siling Li
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China
| | - Ali Abbas
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China
| | - Yan Wang
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China.
| | - Lin Tian
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China.
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26
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Yang M, Qian X, Wang N, Ding Y, Li H, Zhao Y, Yao S. Inhibition of MARCO ameliorates silica-induced pulmonary fibrosis by regulating epithelial-mesenchymal transition. Toxicol Lett 2018; 301:64-72. [PMID: 30391304 DOI: 10.1016/j.toxlet.2018.10.031] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 10/17/2018] [Accepted: 10/29/2018] [Indexed: 01/02/2023]
Abstract
Epithelial-mesenchymal transition (EMT) is linked to fibrosis following exposure to silica. The scavenger receptor, macrophage receptor with collagenous structure (MARCO) plays an important role in silica-induced inflammation, however, the effect of MARCO on silica-induced fibrosis has not been identified. We hypothesized that MARCO would regulate EMT and be involved in the development of silicosis. Herein, we found that MARCO was highly expressed in lung tissue after exposure to silica and a MARCO inhibitor PolyG could alleviate pulmonary fibrosis in vivo. Our results confirmed that the expression of epithelial marker such as E-cadherin decreased, while the expression of mesenchymal markers, including vimentin and α-SMA increased after silica treatment. Furthermore, PolyG administration efficiently blocked the mRNA and protein expression of EMT markers and decreased the level of fibrosis-related transcription factors and proteins, such as Col1a1, Col3a1, Collagen I and Collagen III in the lungs of silica-exposed rats. The findings demonstrate that the macrophage membrane receptor MARCO controls the fibrotic response through regulating EMT in experimental silicosis and suggest a novel target for preventive intervention.
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Affiliation(s)
- Meng Yang
- School of Public Health, Xinxiang Medical University, Xinxiang, 453003, China; School of Public health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Xinlai Qian
- The third Affiliated Hospital, Xinxiang Medical University, Xinxiang, 453003, China
| | - Na Wang
- School of Public Health, Xinxiang Medical University, Xinxiang, 453003, China
| | - Yingying Ding
- School of Public Health, Xinxiang Medical University, Xinxiang, 453003, China
| | - Haibin Li
- School of Public Health, Xinxiang Medical University, Xinxiang, 453003, China
| | - Yingzheng Zhao
- School of Public Health, Xinxiang Medical University, Xinxiang, 453003, China
| | - Sanqiao Yao
- School of Public Health, Xinxiang Medical University, Xinxiang, 453003, China.
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27
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Wang Y, Huang G, Wang Z, Qin H, Mo B, Wang C. Elongation factor-2 kinase acts downstream of p38 MAPK to regulate proliferation, apoptosis and autophagy in human lung fibroblasts. Exp Cell Res 2018; 363:291-298. [PMID: 29355493 DOI: 10.1016/j.yexcr.2018.01.019] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 01/12/2018] [Accepted: 01/15/2018] [Indexed: 12/16/2022]
Abstract
Idiopathic pulmonary fibrosis (IPF) is a chronic, fatal and progressive fibro-proliferative lung disease, and fibroblast-to-myofibroblast differentiation is a crucial process in the development of IPF. Elongation factor-2 kinase (eEF2K) has been reported to play an important role in various disease types, but the role of eEF2K in IPF is unknown. In this study, we investigated the role of eEF2K in normal lung fibroblast (NHLF) proliferation, differentiation, apoptosis, and autophagy as well as the interaction between eEF2K and p38 MAPK signaling through in vitro experiments. We found that the inhibition of eEF2K markedly augmented cell proliferation and differentiation, suppressed apoptosis and autophagy, and reversed the anti-fibrotic effects of a p38 MAPK inhibitor. Together, our results indicate that eEF2K might inhibit TGF-β1-induced NHLF proliferation and differentiation and activate NHLF cell apoptosis and autophagy through p38 MAPK signaling, which might ameliorate lung fibroblast-to-myofibroblast differentiation.
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Affiliation(s)
- Yanni Wang
- Department of Respiratory Medcine (Department of Respiiratory and Critical Care Medcine), Key Cite of National Clinical Research Center for Respiratory Disease. Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan, China
| | - Guojin Huang
- Laboratory of Respiratory Disease, Affiliated Hospital of Guilin Medical University, 15 Lequn Road, Guilin, Guangxi, China
| | - Zhixia Wang
- Department of Respiratory Medcine (Department of Respiiratory and Critical Care Medcine), Key Cite of National Clinical Research Center for Respiratory Disease. Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan, China
| | - Huiping Qin
- Department of Respiratory Medcine (Department of Respiiratory and Critical Care Medcine), Key Cite of National Clinical Research Center for Respiratory Disease. Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan, China
| | - Biwen Mo
- Department of Respiratory, Guilin People's Hospital affiliated of Guilin Medical University, 15 Lequn Road, Guilin, Guangxi, China
| | - Changming Wang
- Department of Respiratory, Guilin People's Hospital affiliated of Guilin Medical University, 12 Wenming Road, Guilin, Guangxi, China.
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Li X, Yan X, Wang Y, Wang J, Zhou F, Wang H, Xie W, Kong H. NLRP3 inflammasome inhibition attenuates silica-induced epithelial to mesenchymal transition (EMT) in human bronchial epithelial cells. Exp Cell Res 2018; 362:489-497. [DOI: 10.1016/j.yexcr.2017.12.013] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Revised: 12/13/2017] [Accepted: 12/14/2017] [Indexed: 12/27/2022]
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29
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Liu Z, Lv Y, Zhang Y, Liu F, Zhu L, Pan S, Qiu C, Guo Y, Yang T, Wang J. Matrine-Type Alkaloids Inhibit Advanced Glycation End Products Induced Reactive Oxygen Species-Mediated Apoptosis of Aortic Endothelial Cells In Vivo and In Vitro by Targeting MKK3 and p38MAPK Signaling. J Am Heart Assoc 2017; 6:JAHA.117.007441. [PMID: 29197828 PMCID: PMC5779049 DOI: 10.1161/jaha.117.007441] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Background The matrine‐type alkaloids are bioactive components extracted from Sophora flavescens, which is used in treatment of diabetes mellitus in traditional Chinese medicine. Advanced glycation end products mediate diabetic vascular complications. This study was aimed to investigate the protective effects and molecular mechanisms of matrine‐type alkaloids on advanced glycation end products–induced reactive oxygen species–mediated endothelial apoptosis. Methods and Results Rats aorta and cultured rat aortic endothelial cells were exposed to advanced glycation end products. Matrine‐type alkaloids, p38 mitogen‐activated protein kinase (MAPK) inhibitor, and small interference RNAs against p38 MAPK kinases MAPK kinase kinase (MKK)3 and MKK6 were administrated. Intracellular reactive oxygen species production, cell apoptosis, phosphorylation of MKKs/p38 MAPK, and expression levels of heme oxygenase/NADPH quinone oxidoreductase were assessed. The nuclear factor erythroid 2‐related factor 2 nuclear translocation and the binding activity of nuclear factor erythroid 2‐related factor 2 with antioxidant response element were also evaluated. Matrine‐type alkaloids suppressed intracellular reactive oxygen species production and inhibited endothelial cell apoptosis in vivo and in vitro by recovering phosphorylation of MKK3/6 and p38 MAPK, nuclear factor erythroid 2‐related factor 2 nuclear translocation, and antioxidant response element binding activity, as well as the expression levels of heme oxygenase/NADPH quinone oxidoreductase. p38 MAPK inhibitor treatment impaired the effects of matrine‐type alkaloids in vivo and in vitro. MKK3/6 silencing impaired the effects of matrine‐type alkaloids in vitro. Conclusions Matrine‐type alkaloids exert endothelial protective effects against advanced glycation end products induced reactive oxygen species–mediated apoptosis by targeting MKK3/6 and enhancing their phosphorylation.
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Affiliation(s)
- Zhongwei Liu
- Department of Cardiology, Shaanxi Provincial People's Hospital, Xi'an Jiaotong University, Xi'an, China.,Institute of Molecular Genetics, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - Ying Lv
- Department of Cardiology, Shaanxi Provincial People's Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Yong Zhang
- Department of Cardiology, Shaanxi Provincial People's Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Fuqiang Liu
- Department of Cardiology, Shaanxi Provincial People's Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Ling Zhu
- Department of Cardiology, Shaanxi Provincial People's Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Shuo Pan
- Department of Cardiology, Shaanxi Provincial People's Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Chuan Qiu
- Department of Biostatistics & Bioinformatics, School of Public Health & Tropical Medicine, Tulane University, New Orleans, LA
| | - Yan Guo
- Institute of Molecular Genetics, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - Tielin Yang
- Institute of Molecular Genetics, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - Junkui Wang
- Department of Cardiology, Shaanxi Provincial People's Hospital, Xi'an Jiaotong University, Xi'an, China
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30
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Zhu H, Gao Y, Zhu S, Cui Q, Du J. Klotho Improves Cardiac Function by Suppressing Reactive Oxygen Species (ROS) Mediated Apoptosis by Modulating Mapks/Nrf2 Signaling in Doxorubicin-Induced Cardiotoxicity. Med Sci Monit 2017; 23:5283-5293. [PMID: 29107939 PMCID: PMC5687120 DOI: 10.12659/msm.907449] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Background Anthracyclines-induced cardiotoxicity has become one of the major restrictions of their clinical applications. Klotho showed cardioprotective effects. This study aimed to investigate the effects and possible mechanisms of klotho on doxorubicin (DOX)-induced cardiotoxicity. Material/Methods Rats and isolated myocytes were exposed to DOX and treated with exogenous klotho. Specific inhibitors and siRNAs silencing MAPKs were also used to treat the animals and/or myocytes. An invasive hemodynamic method was used to determine cardiac functions. Intracellular ROS generation was evaluated by DHE staining. Western blotting was used to determine the phosphorylation levels of JNK, ERK, and p38 MAPKs in plasma extracts and Nrf2 in nuclear extracts. Nuclear translocation of Nrf2 in myocytes was evaluated by immunohistochemistry. Cell apoptosis was evaluated by TUNEL assay and flow cytometry. Results Klotho treatment improved DOX-induced cardiac dysfunction in rats. The DOX-induced ROS accumulation and cardiac apoptosis were attenuated by klotho. Impaired phosphorylations of MAPKs, Nrf2 translocation and expression levels of HO1 and Prx1 were also attenuated by klotho treatment. However, the anti-oxidant and anti-apoptotic effects of klotho on DOX-exposed myocardium and myocytes were impaired by both specific inhibitors and siRNAs against MAPKs. Moreover, the recovery effects of klotho on phosphorylations of MAPKs, Nrf2 translocation and expression levels of HO1 and Prx1 were also impaired by specific inhibitors and siRNAs against MAPKs. Conclusions By recovering the activation of MAPKs signaling, klotho improved cardiac function loss which was triggered by DOX-induced ROS mediated cardiac apoptosis.
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Affiliation(s)
- Huolan Zhu
- Department of Cardiology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, China (mainland)
| | - Yan Gao
- ECG Exam Room, Function Testing Lab, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, China (mainland)
| | - Shunming Zhu
- Department of Cardiology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, China (mainland)
| | - Qianwei Cui
- Department of Cardiology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, China (mainland)
| | - Jie Du
- Health Examination Center, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, China (mainland)
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31
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Li X, Wang Y, An G, Liang D, Zhu Z, Lian X, Niu P, Guo C, Tian L. Bone marrow mesenchymal stem cells attenuate silica-induced pulmonary fibrosis via paracrine mechanisms. Toxicol Lett 2017; 270:96-107. [DOI: 10.1016/j.toxlet.2017.02.016] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2016] [Revised: 02/16/2017] [Accepted: 02/18/2017] [Indexed: 12/21/2022]
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32
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Zhang XL, Xing RG, Chen L, Liu CR, Miao ZG. PI3K/Akt signaling is involved in the pathogenesis of bleomycin-induced pulmonary fibrosis via regulation of epithelial-mesenchymal transition. Mol Med Rep 2016; 14:5699-5706. [DOI: 10.3892/mmr.2016.5960] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Accepted: 09/19/2016] [Indexed: 11/06/2022] Open
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