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Li GS, Huang ZG, He RQ, Zhang W, Tang YX, Liu ZS, Gan XY, Tang D, Li DM, Tang YL, Zhan YT, Dang YW, Zhou HF, Zheng JH, Jin MH, Tian J, Chen G. ITGB4 Serves as an Identification and Prognosis Marker Associated with Immune Infiltration in Small Cell Lung Carcinoma. Mol Biotechnol 2024; 66:2956-2971. [PMID: 37847361 DOI: 10.1007/s12033-023-00912-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 09/15/2023] [Indexed: 10/18/2023]
Abstract
Integrin beta 4 (ITGB4) is a vital factor for numerous cancers. However, no reports regarding ITGB4 in small cell lung carcinoma (SCLC) have been found in the existing literature. This study systematically investigated the expression and clinical value of ITGB4 in SCLC using multi-center and large-sample (n = 963) data. The ITGB4 expression levels between SCLC and control tissues were compared using standardized mean difference and Wilcoxon rank-sum test. The clinical significance of the gene in SCLC was observed using Cox regression and Kaplan-Meier curves. ITGB4 is overexpressed in multiple cancers and represents significant value in distinguishing among cancer samples (AUC = 0.91) and predicting the prognoses (p < 0.05) of patients with different cancers. In contrast, decreased ITGB4 mRNA expression was determined in SCLC (SMD < 0), and this finding was further confirmed at protein levels using in-house specimens (p < 0.05). This decrease in expression may be attributed to the regulatory role of estrogen receptor 1. ITGB4 may participate in the progression of SCLC by affecting several signaling pathways (e.g., tumor necrosis factor signaling pathway) and a series of immune cells (e.g., dendritic cells) (p < 0.05). The gene may serve as a potential marker for predicting the disease status (AUC = 0.97) and prognoses (p < 0.05) of patients with SCLC. Collectively, ITGB4 was identified as an identification and prognosis marker associated with immune infiltration in SCLC.
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Affiliation(s)
- Guo-Sheng Li
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, People's Republic of China
| | - Zhi-Guang Huang
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, People's Republic of China
| | - Rong-Quan He
- Department of Medical Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, People's Republic of China
| | - Wei Zhang
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, People's Republic of China
| | - Yu-Xing Tang
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, People's Republic of China
| | - Zhi-Su Liu
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, People's Republic of China
| | - Xiang-Yu Gan
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, People's Republic of China
| | - Deng Tang
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, People's Republic of China
| | - Dong-Ming Li
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, People's Republic of China
| | - Yu-Lu Tang
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, People's Republic of China
| | - Yan-Ting Zhan
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, People's Republic of China
| | - Yi-Wu Dang
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, People's Republic of China
| | - Hua-Fu Zhou
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, People's Republic of China
| | - Jin-Hua Zheng
- Department of Pathology, The Affiliated Hospital of Guilin Medical University, Guilin, 541001, People's Republic of China
| | - Mei-Hua Jin
- Department of Pathology, The Affiliated Hospital of Guilin Medical University, Guilin, 541001, People's Republic of China
| | - Jia Tian
- Department of Pathology, The Affiliated Hospital of Guilin Medical University, Guilin, 541001, People's Republic of China
| | - Gang Chen
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, People's Republic of China.
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Marissen J, Reichert L, Härtel C, Fortmann MI, Faust K, Msanga D, Harder J, Zemlin M, Gomez de Agüero M, Masjosthusmann K, Humberg A. Antimicrobial Peptides (AMPs) and the Microbiome in Preterm Infants: Consequences and Opportunities for Future Therapeutics. Int J Mol Sci 2024; 25:6684. [PMID: 38928389 PMCID: PMC11203687 DOI: 10.3390/ijms25126684] [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: 05/10/2024] [Revised: 06/07/2024] [Accepted: 06/14/2024] [Indexed: 06/28/2024] Open
Abstract
Antimicrobial peptides (AMPs) are crucial components of the innate immune system in various organisms, including humans. Beyond their direct antimicrobial effects, AMPs play essential roles in various physiological processes. They induce angiogenesis, promote wound healing, modulate immune responses, and serve as chemoattractants for immune cells. AMPs regulate the microbiome and combat microbial infections on the skin, lungs, and gastrointestinal tract. Produced in response to microbial signals, AMPs help maintain a balanced microbial community and provide a first line of defense against infection. In preterm infants, alterations in microbiome composition have been linked to various health outcomes, including sepsis, necrotizing enterocolitis, atopic dermatitis, and respiratory infections. Dysbiosis, or an imbalance in the microbiome, can alter AMP profiles and potentially lead to inflammation-mediated diseases such as chronic lung disease and obesity. In the following review, we summarize what is known about the vital role of AMPs as multifunctional peptides in protecting newborn infants against infections and modulating the microbiome and immune response. Understanding their roles in preterm infants and high-risk populations offers the potential for innovative approaches to disease prevention and treatment.
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Affiliation(s)
- Janina Marissen
- Department of Pediatrics, University Hospital Würzburg, 97080 Würzburg, Germany; (J.M.); (L.R.)
- Würzburg Institute of Systems Immunology, Max-Planck Research Group, University of Würzburg, 97078 Würzburg, Germany;
| | - Lilith Reichert
- Department of Pediatrics, University Hospital Würzburg, 97080 Würzburg, Germany; (J.M.); (L.R.)
| | - Christoph Härtel
- Department of Pediatrics, University Hospital Würzburg, 97080 Würzburg, Germany; (J.M.); (L.R.)
- German Center for Infection Research, Site Hamburg-Lübeck-Borstel-Riems, 23538 Lübeck, Germany
| | - Mats Ingmar Fortmann
- Department of Pediatrics, University Hospital Schleswig-Holstein, 23538 Lübeck, Germany; (M.I.F.); (K.F.)
| | - Kirstin Faust
- Department of Pediatrics, University Hospital Schleswig-Holstein, 23538 Lübeck, Germany; (M.I.F.); (K.F.)
| | - Delfina Msanga
- Department of Pediatrics, Bugando Hospital, Catholic University of Health and Allied Sciences, Mwanza 33109, Tanzania;
| | - Jürgen Harder
- Department of Dermatology, Venerology and Allergology, Quincke Research Center, Kiel University, 24105 Kiel, Germany;
| | - Michael Zemlin
- Department of General Pediatrics and Neonatology, Saarland University Medical Center, 66421 Homburg, Germany;
| | - Mercedes Gomez de Agüero
- Würzburg Institute of Systems Immunology, Max-Planck Research Group, University of Würzburg, 97078 Würzburg, Germany;
| | - Katja Masjosthusmann
- Department of General Pediatrics, University Children’s Hospital Münster, 48149 Münster, Germany; (K.M.); (A.H.)
| | - Alexander Humberg
- Department of General Pediatrics, University Children’s Hospital Münster, 48149 Münster, Germany; (K.M.); (A.H.)
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Long Y, Ang Y, Chen W, Wang Y, Shi M, Hu F, Zhou Q, Shi Y, Ge B, Peng Y, Yu W, Bao H, Li Q, Duan M, Gao J. Hydrogen alleviates impaired lung epithelial barrier in acute respiratory distress syndrome via inhibiting Drp1-mediated mitochondrial fission through the Trx1 pathway. Free Radic Biol Med 2024; 218:132-148. [PMID: 38554812 DOI: 10.1016/j.freeradbiomed.2024.03.022] [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: 12/14/2023] [Revised: 03/07/2024] [Accepted: 03/26/2024] [Indexed: 04/02/2024]
Abstract
Acute respiratory distress syndrome (ARDS) is an acute and severe clinical complication lacking effective therapeutic interventions. The disruption of the lung epithelial barrier plays a crucial role in ARDS pathogenesis. Recent studies have proposed the involvement of abnormal mitochondrial dynamics mediated by dynamin-related protein 1 (Drp1) in the mechanism of impaired epithelial barrier in ARDS. Hydrogen is an anti-oxidative stress molecule that regulates mitochondrial function via multiple signaling pathways. Our previous study confirmed that hydrogen modulated oxidative stress and attenuated acute pulmonary edema in ARDS by upregulating thioredoxin 1 (Trx1) expression, but the exact mechanism remains unclear. This study aimed to investigate the effects of hydrogen on mitochondrial dynamics both in vivo and in vitro. Our study revealed that hydrogen inhibited lipopolysaccharide (LPS)-induced phosphorylation of Drp1 (at Ser616), suppressed Drp1-mediated mitochondrial fission, alleviated epithelial tight junction damage and cell apoptosis, and improved the integrity of the epithelial barrier. This process was associated with the upregulation of Trx1 in lung epithelial tissues of ARDS mice by hydrogen. In addition, hydrogen treatment reduced the production of reactive oxygen species in LPS-induced airway epithelial cells (AECs) and increased the mitochondrial membrane potential, indicating that the mitochondrial dysfunction was restored. Then, the expression of tight junction proteins occludin and zonula occludens 1 was upregulated, and apoptosis in AECs was alleviated. Remarkably, the protective effects of hydrogen on the mitochondrial and epithelial barrier were eliminated after applying the Trx1 inhibitor PX-12. The results showed that hydrogen significantly inhibited the cell apoptosis and the disruption of epithelial tight junctions, maintaining the integrity of the epithelial barrier in mice of ARDS. This might be related to the inhibition of Drp1-mediated mitochondrial fission through the Trx1 pathway. The findings of this study provided a new theoretical basis for the application of hydrogen in the clinical treatment of ARDS.
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Affiliation(s)
- Yun Long
- Department of Anesthesiology, Jiangning Hospital Affiliated to Nanjing Medical University, Nanjing, 211100, China
| | - Yang Ang
- Department of Anesthesiology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210002, China
| | - Wei Chen
- Department of Otolaryngology, Jinling College Affiliated to Nanjing Medical University, Nanjing, 211100, China
| | - Yujie Wang
- Department of Otolaryngology, Jinling College Affiliated to Nanjing Medical University, Nanjing, 211100, China
| | - Min Shi
- Faculty of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, 200433, China
| | - Fan Hu
- State Key Labortory of Reproductive Medicine and Offspring Health, Nanjing Medical University, Nanjing, 211166, China
| | - Qingqing Zhou
- Department of Anesthesiology, Jiangning Hospital Affiliated to Nanjing Medical University, Nanjing, 211100, China
| | - Yadan Shi
- Department of Anesthesiology, Jiangning Hospital Affiliated to Nanjing Medical University, Nanjing, 211100, China
| | - Baokui Ge
- Department of Anesthesiology, Jiangning Hospital Affiliated to Nanjing Medical University, Nanjing, 211100, China
| | - Yigen Peng
- Department of Anesthesiology, Jiangning Hospital Affiliated to Nanjing Medical University, Nanjing, 211100, China
| | - Wanyou Yu
- Department of Anesthesiology, Jiangning Hospital Affiliated to Nanjing Medical University, Nanjing, 211100, China
| | - Hongguang Bao
- Department of Anesthesiology, Nanjing First Hospital, Nanjing Medical University, Jiangsu, 210000, China
| | - Qian Li
- Department of Anesthesiology, Jiangning Hospital Affiliated to Nanjing Medical University, Nanjing, 211100, China; Department of Anesthesiology, Nanjing First Hospital, Nanjing Medical University, Jiangsu, 210000, China.
| | - Manlin Duan
- Department of Anesthesiology, BenQ Medical Center, The Affiliated BenQ Hospital of Nanjing Medical University, Nanjing, 210019, China.
| | - Ju Gao
- Department of Anesthesiology, Yangzhou Clinical Medical College, Nanjing Medical University, Yangzhou, 225001, China; Department of Anesthesiology, Northern Jiangsu People's Hospital, Yangzhou, 225001, China.
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Li GS, Tang YX, Zhang W, Li JD, Huang HQ, Liu J, Fu ZW, He RQ, Kong JL, Zhou HF, Chen G. MMP12 is a Potential Predictive and Prognostic Biomarker of Various Cancers Including Lung Adenocarcinoma. Cancer Control 2024; 31:10732748241235468. [PMID: 38410859 PMCID: PMC10898301 DOI: 10.1177/10732748241235468] [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: 07/27/2023] [Revised: 12/01/2023] [Accepted: 01/09/2024] [Indexed: 02/28/2024] Open
Abstract
OBJECTIVE This study sought to explore the clinical value of matrix metalloproteinases 12 (MMP12) in multiple cancers, including lung adenocarcinoma (LUAD). METHODS Using >10,000 samples, this retrospective study demonstrated the first pan-cancer analysis of MMP12. The expression of MMP12 between cancer groups and their control groups was analyzed using Wilcoxon rank-sum tests. The clinical significance of MMP12 expression in multiple cancers was assessed using receiver operating characteristic curves, Kaplan-Meier curves, and univariate Cox analysis. A further LUAD-related analysis based on 4565 multi-center and in-house samples was performed to verify the findings regarding MMP12 in pan-cancer analysis partly. RESULTS MMP12 mRNA is highly expressed in 13 cancers compared to their controls, and the MMP12 protein level is elevated in some of these cancers (e.g., colon adenocarcinoma) (P < .05). MMP12 expression makes it feasible to distinguish 21 cancer tissues from normal tissues (AUC = 0.86). A high MMP12 expression is a prognosis risk factor in eight cancers, such as adrenocortical carcinoma (hazard ratio >1, P < .05). The elevated MMP12 expression is also a prognosis protective factor in breast-invasive carcinoma and colon adenocarcinoma (hazard ratio <1, P < .05). Some pan-cancer findings regarding MMP12 are verified in LUAD-MMP12 expression is upregulated in LUAD at both the mRNA and protein levels (P < .05), has the potential to distinguish LUAD with considerable accuracy (AUC = .91), and plays a risk prognosis factor for patients with the disease (P < .05). CONCLUSIONS MMP12 is highly expressed in most cancers and may serve as a novel biomarker for the prediction and prognosis of numerous cancers.
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Affiliation(s)
- Guo-Sheng Li
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, P. R. China
| | - Yu-Xing Tang
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, P. R. China
| | - Wei Zhang
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, P. R. China
| | - Jian-Di Li
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, P. R. China
| | - He-Qing Huang
- Department of Radiotherapy, The First Affiliated Hospital of Guangxi Medical University, Nanning, P. R. China
| | - Jun Liu
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, P. R. China
| | - Zong-Wang Fu
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, P. R. China
| | - Rong-Quan He
- Department of Medical Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, P. R. China
| | - Jin-Liang Kong
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, P. R. China
| | - Hua-Fu Zhou
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, P. R. China
| | - Gang Chen
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, P. R. China
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Li L, Zhang X, Chen Y. Human Umbilical Cord Mesenchymal Stem Cell Exosome-derived miR-335-5p Alleviated Lipopolysaccharide-induced Acute Lung Injury by Regulating the m6A Level of ITGβ4 Gene. Curr Med Chem 2024; 31:5448-5467. [PMID: 38310394 DOI: 10.2174/0109298673273833231220062213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 10/27/2023] [Accepted: 11/16/2023] [Indexed: 02/05/2024]
Abstract
BACKGROUND Acute lung injury (ALI) is a serious complication that may accompany severe pneumonia in children. Derived from human umbilical cord mesenchymal stem cell exosome (HucMSC-Exo) can contribute to the regeneration of damaged lung tissue. This study aims to investigate the impact of HucMSC-Exo on ALI and its potential mechanisms. METHODS Firstly, RT-qPCR was performed to assess the expression of miR-335-5p. Subsequently, Pearson correlation analysis was performed to examine the correlation between METTL14 and miR-335-5p, as well as the correlation between METTL14 and ITGβ4, while RNA immunoprecipitation (RIP) was used to determine the m6A modification level of ITGβ4. Additionally, molecular biology techniques were employed to evaluate the expression of glycolysis-related factors. Definitively, an LPS-induced ALI model was established to investigate the effect of miR-335-5p on mice lung tissue. RESULTS miR-335-5p was found to be highly expressed in HucMSC-Exo. Transfection with miR-335-5p mimics resulted in increased glucose uptake. Pearson correlation analysis revealed a negative correlation between METTL14 and miR-335-5p, as well as between METTL14 and ITGβ4. The m6A level of ITGβ4 was elevated in ALI. Overexpression of METTL14 was found to reduce the expression of ITGβ4 and glucose levels, while overexpression of ITGβ4 reversed the effects of METTL14 overexpression. In vivo, results demonstrated that miR-335-5p could improve the extent of lung tissue lesions and reduce glycolytic levels. CONCLUSION This study revealed the mechanism by which miR-335-5p derived from HucMSC-Exo could alleviate LPS-induced ALI by regulating the m6A modification of ITGβ4, providing a new direction for the treatment of ALI.
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Affiliation(s)
- Linrui Li
- Department of Respiratory Medicine, Hunan Children's Hospital, Changsha, 410006, China
| | - Xi Zhang
- Department of Respiratory Medicine, Hunan Children's Hospital, Changsha, 410006, China
| | - Yanping Chen
- Department of Respiratory Medicine, Hunan Children's Hospital, Changsha, 410006, China
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Chen Y, Jiang W, Wang J, Ma X, Wu D, Liu L, Ji M, Qu X, Liu C, Liu H, Qin X, Xiang Y. Conditional knockout of ITGB4 in bronchial epithelial cells directs bronchopulmonary dysplasia. J Cell Mol Med 2023; 27:3760-3772. [PMID: 37698050 PMCID: PMC10718146 DOI: 10.1111/jcmm.17948] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 08/23/2023] [Accepted: 08/29/2023] [Indexed: 09/13/2023] Open
Abstract
Neonatal respiratory system disease is closely associated with embryonic lung development. Our group found that integrin β4 (ITGB4) is downregulated in the airway epithelium of asthma patients. Asthma is the most common chronic respiratory illness in childhood. Therefore, we suspect whether the deletion of ITGB4 would affect fetal lung development. In this study, we characterized the role of ITGB4 deficiency in bronchopulmonary dysplasia (BPD). ITGB4 was conditionally knocked out in CCSP-rtTA, Tet-O-Cre and ITGB4f/f triple transgenic mice. Lung tissues at different developmental stages were collected for experimental detection and transcriptome sequencing. The effects of ITGB4 deficiency on lung branching morphogenesis were observed by fetal mouse lung explant culture. Deleting ITGB4 from the airway epithelial cells results in enlargement of alveolar airspaces, inhibition of branching, the abnormal structure of epithelium cells and the impairment of cilia growth during lung development. Scanning electron microscopy showed that the airway epithelial cilia of the β4ccsp.cre group appear to be sparse, shortened and lodging. Lung-development-relevant factors such as SftpC and SOX2 significantly decreased both mRNA and protein levels. KEGG pathway analysis indicated that multiple ontogenesis-regulating-relevant pathways converge to FAK. Accordingly, ITGB4 deletion decreased phospho-FAK, phospho-GSK3β and SOX2 levels, and the correspondingly contrary consequence was detected after treatment with GSK3β agonist (wortmannin). Airway branching defect of β4ccsp.cre mice lung explants was also partly recovered after wortmannin treatment. Airway epithelial-specific deletion of ITGB4 contributes to lung developmental defect, which could be achieved through the FAK/GSK3β/SOX2 signal pathway.
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Affiliation(s)
- Yu Chen
- School of Basic MedicineCentral South UniversityChangshaChina
- Department of Medical Laboratory, School of MedicineHunan Normal UniversityChangshaChina
| | - Wang Jiang
- School of Basic MedicineCentral South UniversityChangshaChina
| | - Jin‐Mei Wang
- School of Basic MedicineCentral South UniversityChangshaChina
| | - Xiao‐Di Ma
- School of Basic MedicineCentral South UniversityChangshaChina
| | - Di Wu
- School of Basic MedicineCentral South UniversityChangshaChina
- School of MedicineFoshan UniversityFoshanChina
| | - Le‐Xin Liu
- School of Basic MedicineCentral South UniversityChangshaChina
| | - Ming Ji
- School of Basic MedicineCentral South UniversityChangshaChina
| | - Xiang‐Ping Qu
- School of Basic MedicineCentral South UniversityChangshaChina
| | - Chi Liu
- School of Basic MedicineCentral South UniversityChangshaChina
| | - Hui‐Jun Liu
- School of Basic MedicineCentral South UniversityChangshaChina
| | - Xiao‐Qun Qin
- School of Basic MedicineCentral South UniversityChangshaChina
| | - Yang Xiang
- School of Basic MedicineCentral South UniversityChangshaChina
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Zhou K, Yuan L, Liu H, Du X, Yao Y, Qin L, Yang M, Xu K, Wu X, Wang L, Xiang Y, Qu X, Qin X, Liu C. ITGB4 deficiency in airway epithelia enhances HDM-induced airway inflammation through hyperactivation of TLR4 signaling pathway. J Leukoc Biol 2023; 113:216-227. [PMID: 36822178 DOI: 10.1093/jleuko/qiac013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Indexed: 01/18/2023] Open
Abstract
Airway epithelial cells (AECs) are the first cell barrier of the respiratory system against external stimuli that play a critical role in the development of asthma. It is known that AECs play a key role in asthma susceptibility and severity. ITGB4 is a downregulated adhesion molecule in the airway epithelia of asthma patients, which was involved in the exaggerated lung inflammation after allergy stimulation. Toll-like receptor 4 (TLR4) in AECs has also been shown to play a crucial role in the development of lung inflammation in asthma patients. However, the specific intrinsic regulatory mechanism of TLR4 in AECs are still obscure. In this article, we demonstrated that ITGB4 deficiency in AECs enhances HDM-induced airway inflammation through hyperactivation of the TLR4 signaling pathway, which is mediated by inhibition of FYN phosphorylation. Moreover, TLR4-antagonist treatment or blockade of FYN can inhibit or exaggerate lung inflammation in HDM-stressed ITGB4-deficient mice, separately. Together, these results demonstrated that ITGB4 deficiency in AECs enhances HDM-induced lung inflammatory response through the ITGB4-FYN-TLR4 axis, which may provide new therapeutic approaches for the management of lung inflammation in asthma.
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Affiliation(s)
- Kai Zhou
- Department of Respiratory Medicine, National Clinical Research Center for Respiratory Diseases, Xiangya Hospital, Central South University, Xiangya Road Street, Changsha, Hunan 410078, China
- Department of Physiology, School of Basic Medicine Science, Central South University, Xiangya Road Street, Changsha, Hunan 410078, China
- Basic and Clinical Research Laboratory of Major Respiratory Diseases, Central South University, Xiangya Road Street, Changsha, Hunan 410078, China
| | - Lin Yuan
- Department of Respiratory Medicine, National Clinical Research Center for Respiratory Diseases, Xiangya Hospital, Central South University, Xiangya Road Street, Changsha, Hunan 410078, China
- Department of Physiology, School of Basic Medicine Science, Central South University, Xiangya Road Street, Changsha, Hunan 410078, China
- Basic and Clinical Research Laboratory of Major Respiratory Diseases, Central South University, Xiangya Road Street, Changsha, Hunan 410078, China
| | - Huijun Liu
- Department of Physiology, School of Basic Medicine Science, Central South University, Xiangya Road Street, Changsha, Hunan 410078, China
| | - Xizi Du
- Department of Physiology, School of Basic Medicine Science, Central South University, Xiangya Road Street, Changsha, Hunan 410078, China
| | - Ye Yao
- Department of Physiology, School of Basic Medicine Science, Central South University, Xiangya Road Street, Changsha, Hunan 410078, China
| | - Ling Qin
- Department of Respiratory Medicine, National Clinical Research Center for Respiratory Diseases, Xiangya Hospital, Central South University, Xiangya Road Street, Changsha, Hunan 410078, China
- Basic and Clinical Research Laboratory of Major Respiratory Diseases, Central South University, Xiangya Road Street, Changsha, Hunan 410078, China
| | - Ming Yang
- Centre for Asthma and Respiratory Disease, School of Biomedical Sciences and Pharmacy, Faculty of Health and Medicine, University of Newcastle and Hunter Medical Research Institute, Elizabeth Street, Callaghan, New South Wales 2892921, Australia
| | - Kun Xu
- School of Public Health, Jilin University, Xinmin Dajie Street, Changchun 130000, China
| | - Xinyu Wu
- Department of Physiology, School of Basic Medicine Science, Central South University, Xiangya Road Street, Changsha, Hunan 410078, China
| | - Leyuan Wang
- Department of Physiology, School of Basic Medicine Science, Central South University, Xiangya Road Street, Changsha, Hunan 410078, China
| | - Yang Xiang
- Department of Physiology, School of Basic Medicine Science, Central South University, Xiangya Road Street, Changsha, Hunan 410078, China
| | - Xiangping Qu
- Department of Physiology, School of Basic Medicine Science, Central South University, Xiangya Road Street, Changsha, Hunan 410078, China
| | - Xiaoqun Qin
- Department of Physiology, School of Basic Medicine Science, Central South University, Xiangya Road Street, Changsha, Hunan 410078, China
| | - Chi Liu
- Department of Respiratory Medicine, National Clinical Research Center for Respiratory Diseases, Xiangya Hospital, Central South University, Xiangya Road Street, Changsha, Hunan 410078, China
- Department of Physiology, School of Basic Medicine Science, Central South University, Xiangya Road Street, Changsha, Hunan 410078, China
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Wang Q, Sun N, Zhang M. Identification and Validation of Anoikis-Related Signatures for Predicting Prognosis in Lung Adenocarcinoma with Machine Learning. Int J Gen Med 2023; 16:1833-1844. [PMID: 37213475 PMCID: PMC10199682 DOI: 10.2147/ijgm.s409006] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 05/04/2023] [Indexed: 05/23/2023] Open
Abstract
Background Lung adenocarcinoma (LUAD) is an aggressive cancer that has an extremely poor prognosis. As well as facilitating the detachment of cancer cells from the primary tumor site, anoikis plays an important role in cancer metastasis. Few studies to date, however, have examined the role of anoikis in LUAD, in patient prognosis. Methods A total of 316 anoikis-related genes (ANRGs) integrated from Genecards and Harmonizome portals. LUAD transcriptome data were retrieved from the Genotype-Tissue Expression Project (GEO) and The Cancer Genome Atlas (TCGA). Anoikis-related prognostic genes (ANRGs) were primarily screened by univariate Cox regression. All ANRGs were included in the Least Absolute Shrinkage and Selection Operator (LASSO) Cox regression model to construct the powerful prognostic signature. This signature was validated and assessed using the Kaplan-Meier method as well as univariate and multivariate Cox regression analyses. Anoikis-related regulators of risk score were identified using a XG-boost machine learning model. The expression of ITGB4 protein was examined in a ZhengZhou University (ZZU) tissue cohort by immunohistochemistry, and the potential mechanisms of action of ITGB4 in LUAD were explored by GO, KEGG, and ingenuity pathway analyses and by GSEA. Results A risk score signature was constructed based on eight ANRGs, with high risk scores found to closely correlate with unfavorable clinical features. ITGB4 expression may be associated with 5-year over survival, with immunohistochemistry showed that the expression of ITGB4 was higher in LUAD than in nontumor tissues. Enrichment analysis suggested that ITGB4 may promote LUAD development by targeting E2F, MYC, and oxidative phosphorylation signaling pathways. Conclusion Our anoikis-related signature from RNA-seq data may be a novel prognostic biomarker in patients with LUAD. It may help physicians develop personalized LUAD treatments in clinical practice. Moreover, ITGB4 may affect the development of LUAD through the oxidative phosphorylation pathway.
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Affiliation(s)
- Qilong Wang
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People’s Republic of China
- The Academy of Medical Science of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, People’s Republic of China
| | - Nannan Sun
- Department of Hematology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People’s Republic of China
| | - Mingzhi Zhang
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People’s Republic of China
- Correspondence: Mingzhi Zhang, Department of Oncology, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe Road, Zhengzhou, Henan, 450052, People’s Republic of China, Email
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Takamura N, Renaud L, da Silveira WA, Feghali-Bostwick C. PDGF Promotes Dermal Fibroblast Activation via a Novel Mechanism Mediated by Signaling Through MCHR1. Front Immunol 2021; 12:745308. [PMID: 34912333 PMCID: PMC8667318 DOI: 10.3389/fimmu.2021.745308] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 10/11/2021] [Indexed: 11/13/2022] Open
Abstract
Systemic sclerosis (SSc) is an autoimmune disease characterized by vasculopathy and excessive fibrosis of the skin and internal organs. To this day, no effective treatments to prevent the progression of fibrosis exist, and SSc patients have disabilities and reduced life expectancy. The need to better understand pathways that drive SSc and to find therapeutic targets is urgent. RNA sequencing data from SSc dermal fibroblasts suggested that melanin-concentrating hormone receptor 1 (MCHR1), one of the G protein-coupled receptors regulating emotion and energy metabolism, is abnormally deregulated in SSc. Platelet-derived growth factor (PDGF)-BB stimulation upregulated MCHR1 mRNA and protein levels in normal human dermal fibroblasts (NHDF), and MCHR1 silencing prevented the PDGF-BB-induced expression of the profibrotic factors transforming growth factor beta 1 (TGFβ1) and connective tissue growth factor (CTGF). PDGF-BB bound MCHR1 in membrane fractions of NHDF, and the binding was confirmed using surface plasmon resonance (SPR). MCHR1 inhibition blocked PDGF-BB modulation of intracellular cyclic adenosine monophosphate (cAMP). MCHR1 silencing in NHDF reduced PDGF-BB signaling. In summary, MCHR1 promoted the fibrotic response in NHDF through modulation of TGFβ1 and CTGF production, intracellular cAMP levels, and PDGF-BB-induced signaling pathways, suggesting that MCHR1 plays an important role in mediating the response to PDGF-BB and in the pathogenesis of SSc. Inhibition of MCHR1 should be considered as a novel therapeutic strategy in SSc-associated fibrosis.
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Affiliation(s)
- Naoko Takamura
- Department of Medicine, Medical University of South Carolina, Charleston, SC, United States
| | - Ludivine Renaud
- Department of Medicine, Medical University of South Carolina, Charleston, SC, United States
| | - Willian Abraham da Silveira
- Department of Biological Sciences, School of Life Sciences and Education, Staffordshire University, Stoke-on-Trent, United Kingdom
| | - Carol Feghali-Bostwick
- Department of Medicine, Medical University of South Carolina, Charleston, SC, United States
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