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Li Y, Liu H, Zhao D, Zhang D. Spleen contributes to chronic restraint stress-induced lung injury through splenic CD11b + cells. Int Immunopharmacol 2024; 126:111258. [PMID: 37992443 DOI: 10.1016/j.intimp.2023.111258] [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: 10/05/2023] [Revised: 11/05/2023] [Accepted: 11/15/2023] [Indexed: 11/24/2023]
Abstract
Chronic stress can induce lung injury. The spleen, as the largest peripheral immune organ, plays a crucial role in various lung diseases. Our previous study found that the spleen underwent significant changes during chronic restraint stress (CRS). However, the exact role of the spleen in CRS-induced lung injury remains unclear. In this study, we found that CRS could increase lung index. CRS could lead to alterations of the lungs such as destruction of alveolar wall, thickening of alveolar septa, dilation of pulmonary capillaries, and increased inflammatory cell infiltration. CRS increases the concentration of malondialdehyde (MDA), decreases the level of surfactant protein A (SP-A), and elevates the levels of pro-inflammatory factors (TNF-α, IL-6, and IL-1β) in the lungs. Additionally, CRS could increase the proportions and numbers of CD11b+Ly6ChiLy6G- monocytes in the lung, while cannot alter proportions and numbers of CD3-NK1.1+ NK cells, CD3+CD4+ T cells, CD3+CD8+ T cells, and CD11b+Ly6G+ neutrophils. Moreover, the levels of inflammatory markers in lung tissues were positively correlated with the proportion of CD11b+Ly6ChiLy6G- monocytes. Interestingly, splenectomy inhibited CRS-induced lung injury and attenuated the alteration in the proportion of CD11b+Ly6ChiLy6G- monocytes in the lungs induced by CRS. Moreover, splenic CD11b+ cells, rather than splenic CD11b- cells, transfused into splenectomized mice, and subsequently exposed to CRS, can cause lung injury. These results suggest that CRS could induce lung injury and CD11b+Ly6ChiLy6G- monocytes aggregation in the lung. The spleen could contribute to CRS-induced lung injury. Furthermore, splenic CD11b+ cells might play an important role in CRS-induced lung injury.
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Affiliation(s)
- Yu Li
- Department of Thoracic Surgery, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China.
| | - Hailing Liu
- Department of Clinical Hematology, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Danwen Zhao
- Department of Thoracic Surgery, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Danjie Zhang
- Department of Thoracic Surgery, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
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Elwany NE, Abdelhamid AM, Mohamed NM, Khalil SS, Elsayed Orabi EE, Abdelfattah AM. Vinpocetine alleviates intestinal ischemia/reperfusion injury and enhances M2 macrophage polarization in rats: Role of SIRT1/SOCS3/STAT3 signaling pathway. Int Immunopharmacol 2023; 122:110654. [PMID: 37459783 DOI: 10.1016/j.intimp.2023.110654] [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: 02/02/2023] [Revised: 06/28/2023] [Accepted: 07/12/2023] [Indexed: 08/25/2023]
Abstract
Vinpocetine (Vinpo) is a neuroprotective vasodilator drug. It is an effective therapeutic agent for a variety of cerebrovascular and cognitive disorders. However, its potential protective efficacy on intestinal ischemia/reperfusion (I/R) injury remains elusive. The present study aimed to investigate the effect of Vinpo on intestinal I/R injury and to explore its modulatory effect on sirtuin (SIRT1)/ Suppressor of cytokine signaling (SOCS3)/ Signal Transducer and Activator of Transcription (STAT3) signaling. Twenty-four male Wistar albino rats were randomly allocated into four groups. G1 (sham): rats were subjected to surgical stress without I/R, GII (I/R): rats were subjected to 60 min/2-h I/R, GIII (Vinpo + I/R): rats were pre-treated with Vinpo (20 mg/kg/day, P.O. daily) for 2 weeks before intestinal I/R; GIV (EX527 + Vinpo + I/R): rats received both Vinpo (20 mg/kg/day, P.O.) and EX527 (5 mg/kg, once every 2 days, i.p) for 2 weeks before intestinal I/R. The current results showed that Vinpo improved the intestinal histopathological picture, enhanced M1 to M2 macrophage polarization and alleviated the I/R-induced increase in interleukins (IL-6, IL-1β), tumor necrosis factor (TNF-α), inducible nitric oxide synthase (i-NOS), and nitric oxide (NO). Additionally, Vinpo pretreatment upregulated SIRT1 mRNA expression/protein level and SOCS3 mRNA expression while downregulating P-STAT3 immunoreactivity. The effects of Vinpo were attenuated by the SIRT1 inhibitor EX527. We concluded that Vinpo ameliorated the intestinal I/R injury and enhanced M2 anti-inflammatory macrophage polarization through modulation of SIRT1/SOCS3/STAT3/i-NOS cascade.
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Affiliation(s)
- Nisreen E Elwany
- Clinical Pharmacology Department, Faculty of Medicine, Zagazig University, Egypt
| | | | | | - Sama S Khalil
- Medical Physiology Department, Faculty of Medicine, Zagazig University, Egypt
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3
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Ma C, Gao J, Liang J, Wang F, Xu L, Bu J, He B, Liu G, Niu R, Liu G. CCL12 induces trabecular bone loss by stimulating RANKL production in BMSCs during acute lung injury. Exp Mol Med 2023; 55:818-830. [PMID: 37009797 PMCID: PMC10167364 DOI: 10.1038/s12276-023-00970-w] [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: 06/19/2022] [Revised: 12/29/2022] [Accepted: 01/03/2023] [Indexed: 04/04/2023] Open
Abstract
In the last three years, the capacity of health care systems and the public health policies of governments worldwide were challenged by the spread of SARS-CoV-2. Mortality due to SARS-CoV-2 mainly resulted from the development of acute lung injury (ALI)/acute respiratory distress syndrome (ARDS). Moreover, millions of people who survived ALI/ARDS in SARS-CoV-2 infection suffer from multiple lung inflammation-induced complications that lead to disability and even death. The lung-bone axis refers to the relationship between lung inflammatory diseases (COPD, asthma, and cystic fibrosis) and bone diseases, including osteopenia/osteoporosis. Compared to chronic lung diseases, the influence of ALI on the skeleton has not been investigated until now. Therefore, we investigated the effect of ALI on bone phenotypes in mice to elucidate the underlying mechanisms. In vivo bone resorption enhancement and trabecular bone loss were observed in LPS-induced ALI mice. Moreover, chemokine (C-C motif) ligand 12 (CCL12) accumulated in the serum and bone marrow. In vivo global ablation of CCL12 or conditional ablation of CCR2 in bone marrow stromal cells (BMSCs) inhibited bone resorption and abrogated trabecular bone loss in ALI mice. Furthermore, we provided evidence that CCL12 promoted bone resorption by stimulating RANKL production in BMSCs, and the CCR2/Jak2/STAT4 axis played an essential role in this process. Our study provides information regarding the pathogenesis of ALI and lays the groundwork for future research to identify new targets to treat lung inflammation-induced bone loss.
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Affiliation(s)
- Chao Ma
- Department of Orthopedic Surgery, Xuzhou Central Hospital, Xuzhou Clinical School of Xuzhou Medical University, Xuzhou Central Hospital Affiliated to Nanjing University of Chinese Medicine, The Xuzhou School of Clinical Medicine of Nanjing Medical University, Xuzhou Central Hospital Affiliated to Medical School of Southeast University, 199 Jiefang South Road, Xuzhou, 221009, China
| | - Juan Gao
- Department of Gynecology and Obstetrics, Xuzhou Central Hospital, Xuzhou Clinical School of Xuzhou Medical University, Xuzhou Central Hospital Affiliated to Nanjing University of Chinese Medicine, The Xuzhou School of Clinical Medicine of Nanjing Medical University, Xuzhou Central Hospital Affiliated to Medical School of Southeast University, 199 Jiefang South Road, Xuzhou, 221009, China
| | - Jun Liang
- Department of Endocrinology, Xuzhou Central Hospital, Xuzhou Clinical School of Xuzhou Medical University, Xuzhou Central Hospital Affiliated to Nanjing University of Chinese Medicine, The Xuzhou School of Clinical Medicine of Nanjing Medical University, Xuzhou Central Hospital Affiliated to Medical School of Southeast University, 199 Jiefang South Road, Xuzhou, 221009, China
| | - Feizhen Wang
- Department of Orthopedic Surgery, Xuzhou Central Hospital, Xuzhou Clinical School of Xuzhou Medical University, Xuzhou Central Hospital Affiliated to Nanjing University of Chinese Medicine, The Xuzhou School of Clinical Medicine of Nanjing Medical University, Xuzhou Central Hospital Affiliated to Medical School of Southeast University, 199 Jiefang South Road, Xuzhou, 221009, China
| | - Long Xu
- Department of Orthopedic Surgery, Xuzhou Central Hospital, Xuzhou Clinical School of Xuzhou Medical University, Xuzhou Central Hospital Affiliated to Nanjing University of Chinese Medicine, The Xuzhou School of Clinical Medicine of Nanjing Medical University, Xuzhou Central Hospital Affiliated to Medical School of Southeast University, 199 Jiefang South Road, Xuzhou, 221009, China
| | - Jinhui Bu
- Department of Orthopedic Surgery, Xuzhou Central Hospital, Xuzhou Clinical School of Xuzhou Medical University, Xuzhou Central Hospital Affiliated to Nanjing University of Chinese Medicine, The Xuzhou School of Clinical Medicine of Nanjing Medical University, Xuzhou Central Hospital Affiliated to Medical School of Southeast University, 199 Jiefang South Road, Xuzhou, 221009, China
| | - Bo He
- Department of Orthopedic Surgery, Xuzhou Central Hospital, Xuzhou Clinical School of Xuzhou Medical University, Xuzhou Central Hospital Affiliated to Nanjing University of Chinese Medicine, The Xuzhou School of Clinical Medicine of Nanjing Medical University, Xuzhou Central Hospital Affiliated to Medical School of Southeast University, 199 Jiefang South Road, Xuzhou, 221009, China
| | - Guangpu Liu
- Department of Orthopedic Surgery, Xuzhou Central Hospital, Xuzhou Clinical School of Xuzhou Medical University, Xuzhou Central Hospital Affiliated to Nanjing University of Chinese Medicine, The Xuzhou School of Clinical Medicine of Nanjing Medical University, Xuzhou Central Hospital Affiliated to Medical School of Southeast University, 199 Jiefang South Road, Xuzhou, 221009, China
| | - Ru Niu
- Department of Orthopedic Surgery, Xuzhou Central Hospital, Xuzhou Clinical School of Xuzhou Medical University, Xuzhou Central Hospital Affiliated to Nanjing University of Chinese Medicine, The Xuzhou School of Clinical Medicine of Nanjing Medical University, Xuzhou Central Hospital Affiliated to Medical School of Southeast University, 199 Jiefang South Road, Xuzhou, 221009, China
| | - Guangwang Liu
- Department of Orthopedic Surgery, Xuzhou Central Hospital, Xuzhou Clinical School of Xuzhou Medical University, Xuzhou Central Hospital Affiliated to Nanjing University of Chinese Medicine, The Xuzhou School of Clinical Medicine of Nanjing Medical University, Xuzhou Central Hospital Affiliated to Medical School of Southeast University, 199 Jiefang South Road, Xuzhou, 221009, China.
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4
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Sobah ML, Scott AC, Laird M, Koole C, Liongue C, Ward AC. Socs3b regulates the development and function of innate immune cells in zebrafish. Front Immunol 2023; 14:1119727. [PMID: 36969252 PMCID: PMC10030509 DOI: 10.3389/fimmu.2023.1119727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 02/23/2023] [Indexed: 03/29/2023] Open
Abstract
Introduction Suppressor of cytokine signaling 3 (SOCS3) is a critical component of the negative feedback regulation that controls signaling by cytokines and other factors thereby ensuring that important processes such as hematopoiesis and inflammation occur at appropriate levels. Methods To gain further insights into SOCS3 function, the zebrafish socs3b gene was investigated through analysis of a knockout line generated using CRISPR/Cas9-mediated genome editing. Results Zebrafish socs3b knockout embryos displayed elevated numbers of neutrophils during primitive and definitive hematopoiesis but macrophage numbers were not altered. However, the absence of socs3b reduced neutrophil functionality but enhanced macrophage responses. Adult socs3b knockout zebrafish displayed reduced survival that correlated with an eye pathology involving extensive infiltration of neutrophils and macrophages along with immune cell dysregulation in other tissues. Discussion These findings identify a conserved role for Socs3b in the regulation of neutrophil production and macrophage activation.
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Affiliation(s)
| | - Aimee C. Scott
- Institue for Mental and Physical Health and Clinical Translation (IMPACT), Deakin University, Geelong, VIC, Australia
| | - Miranda Laird
- School of Medicine, Deakin University, Geelong, VIC, Australia
| | - Cassandra Koole
- School of Medicine, Deakin University, Geelong, VIC, Australia
| | - Clifford Liongue
- School of Medicine, Deakin University, Geelong, VIC, Australia
- Institue for Mental and Physical Health and Clinical Translation (IMPACT), Deakin University, Geelong, VIC, Australia
| | - Alister C. Ward
- School of Medicine, Deakin University, Geelong, VIC, Australia
- Institue for Mental and Physical Health and Clinical Translation (IMPACT), Deakin University, Geelong, VIC, Australia
- *Correspondence: Alister C. Ward,
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Perego M, Fu S, Cao Y, Kossenkov A, Yao M, Bonner E, Alicea-Torres K, Liu W, Jiang Z, Chen Z, Fuchs SY, Zhou J, Gabrilovich DI. Mechanisms regulating transitory suppressive activity of neutrophils in newborns: PMNs-MDSCs in newborns. J Leukoc Biol 2022; 112:955-968. [PMID: 35726818 PMCID: PMC9794389 DOI: 10.1002/jlb.4hi0921-514rr] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 05/27/2022] [Accepted: 05/28/2022] [Indexed: 12/30/2022] Open
Abstract
Transitory appearance of immune suppressive polymorphonuclear neutrophils (PMNs) defined as myeloid-derived suppressor cells (PMNs-MDSCs) in newborns is important for their protection from inflammation associated with newly established gut microbiota. Here, we report that inhibition of the type I IFN (IFN1) pathway played a major role in regulation of PMNs-MDSCs-suppressive activity during first weeks of life. Expression of the IFN1 receptor IFNAR1 was markedly lower in PMNs-MDSCs. However, in newborn mice, down-regulation of IFNAR1 was not sufficient to render PMNs immune suppressive. That also required the presence of a positive signal from lactoferrin via its receptor low-density lipoprotein receptor-related protein 2. The latter effect was mediated via NF-κB activation, which was tempered by IFN1 in a manner that involved suppressor of cytokine signaling 3. Thus, we discovered a mechanism of tight regulation of immune suppressive PMNs-MDSCs in newborns, which may be used in the development of therapies of neonatal pathologies.
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Affiliation(s)
| | - Shuyu Fu
- The Wistar Institute, Philadelphia, Pennsylvania, USA
| | - Yingjiao Cao
- Key Laboratory of Immune Microenvironment and Disease of the Ministry of Education, Department of Immunology, School of Basic Sciences, Tianjin Medical University, Tianjin, China
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | | | - Meng Yao
- Key Laboratory of Immune Microenvironment and Disease of the Ministry of Education, Department of Immunology, School of Basic Sciences, Tianjin Medical University, Tianjin, China
| | - Erin Bonner
- The Wistar Institute, Philadelphia, Pennsylvania, USA
| | - Kevin Alicea-Torres
- The Wistar Institute, Philadelphia, Pennsylvania, USA
- Biology Department, University of Puerto Rico-Humacao, Humacao, Puerto Rico, USA
| | - Wangkai Liu
- Department of Pediatrics, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zhilong Jiang
- Department of Respiratory and Critical Care Medicine, Zhongshan Hospital; Shanghai Institute of Respiratory Disease, Fudan University, Shanghai, China
| | - Zhihong Chen
- Department of Respiratory and Critical Care Medicine, Zhongshan Hospital; Shanghai Institute of Respiratory Disease, Fudan University, Shanghai, China
| | - Serge Y Fuchs
- Department of Biomedical Sciences, School of Veterinary Medicine University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Jie Zhou
- Key Laboratory of Immune Microenvironment and Disease of the Ministry of Education, Department of Immunology, School of Basic Sciences, Tianjin Medical University, Tianjin, China
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6
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Huang J, Wang B, Tao S, Hu Y, Wang N, Zhang Q, Wang C, Chen C, Gao B, Cheng X, Li Y. D-tagatose protects against oleic acid-induced acute respiratory distress syndrome in rats by activating PTEN/PI3K/AKT pathway. Front Immunol 2022; 13:928312. [PMID: 36189316 PMCID: PMC9520915 DOI: 10.3389/fimmu.2022.928312] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 08/29/2022] [Indexed: 12/02/2022] Open
Abstract
Acute respiratory distress syndrome (ARDS) is characterized by disruption of the alveolar–capillary barrier, resulting in severe alveolar edema and inflammation. D-tagatose (TAG) is a low-calorie fructose isomer with diverse biological activities whose role in ARDS has never been explored. We found that TAG protects lung tissues from injury in the oleic acid-induced rat model of ARDS. Seventeen male Sprague–Dawley rats were randomly assigned to 3 groups: Sham (n = 5), ARDS (n = 6), and TAG + ARDS (n = 6). The treatment groups were injected with oleic acid to induce ARDS, and the TAG + ARDS group was given TAG 3 days before the induction. After the treatments, the effect of TAG was evaluated by blood gas analysis and observing the gross and histological structure of the lung. The results showed that TAG significantly improved the oxygenation function, reduced the respiratory acidosis and the inflammatory response. TAG also improved the vascular permeability in ARDS rats and promoted the differentiation of alveolar type II cells, maintaining the stability of the alveolar structure. This protective effect of TAG on the lung may be achieved by activating the PTEN/PI3K/AKT pathway. Thus, TAG protects against oleic acid-induced ARDS in rats, suggesting a new clinical strategy for treating the condition.
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Affiliation(s)
- Jian Huang
- Department of Cardiac Surgery, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, China
| | - Bingjie Wang
- Department of Anesthesiology, The Forth Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Shaoyi Tao
- Department of Plastic Repair Burn Surgery Dermatology, The Second People’s Hospital of Hefei, Hefei Hospital Affiliated to Anhui Medical University, Hefei, China
| | - Yuexia Hu
- Department of Anesthesiology, The Forth Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Ning Wang
- Department of Anesthesiology, The Forth Affiliated Hospital of Anhui Medical University, Hefei, China
- Key Laboratory of Anesthesiology and Perioperative Medicine of Anhui Higher Education Institutes, Anhui Medical University, Hefei, China
| | - Qiaoyun Zhang
- Department of Cardiac Surgery, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, China
| | - Chunhui Wang
- Department of Anesthesiology, The Forth Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Chen Chen
- Department of Anesthesiology, The Forth Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Bingren Gao
- Department of Cardiac Surgery, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, China
- *Correspondence: Yongnan Li, ; Xingdong Cheng, ; Bingren Gao,
| | - Xingdong Cheng
- Department of Cardiac Surgery, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, China
- *Correspondence: Yongnan Li, ; Xingdong Cheng, ; Bingren Gao,
| | - Yongnan Li
- Department of Cardiac Surgery, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, China
- *Correspondence: Yongnan Li, ; Xingdong Cheng, ; Bingren Gao,
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7
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Napolioni V, Bianconi F, Potenza R, Carpi FM, Ludovini V, Picciolini M, Tofanetti FR, Bufalari A, Pallotti S, Poggi C, Anile M, Daddi N, Venuta F, Puma F, Vannucci J. Genome-wide expression of the residual lung reacting to experimental Pneumonectomy. BMC Genomics 2021; 22:881. [PMID: 34872491 PMCID: PMC8650537 DOI: 10.1186/s12864-021-08171-3] [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: 03/31/2021] [Accepted: 11/12/2021] [Indexed: 11/21/2022] Open
Abstract
Background Acute or chronic irreversible respiratory failure may occur in patients undergoing pneumonectomy. Aim of this study was to determine transcriptome expression changes after experimental pneumonectomy in swine model. Experimental left pneumonectomy was performed in five pigs under general anaesthesia. Both the resected and the remaining lung, after 60 post-operative completely uneventful days, underwent genome-wide bulk RNA-Sequencing (RNA-Seq). Results Histological analysis showed dilation of air spaces and rupture of interalveolar septa. In addition, mild inflammation, no fibrosis, radial stretch of the bronchus, strong enlargement of airspaces and thinning of the blood supply were observed. Bioinformatic analyses of bulk RNA-Seq data identified 553 Differentially Expressed Genes (DEGs) at adjusted P-value below 0.001, between pre- and post-pneumonectomy. The top 10 up-regulated DEGs were Edn1, Areg, Havcr2, Gadd45g, Depp1, Cldn4, Atf3, Myc, Gadd45b, Socs3; the top 10 down-regulated DEGs were Obscn, Cdkn2b, ENSSSCG00000015738, Prrt2, Amer1, Flrt3, Efnb2, Tox3, Znf793, Znf365. Leveraging digital cytometry tools, no difference in cellular abundance was found between the two experimental groups, while the analysis of cell type-specific gene expression patterns highlighted a striking predominance of macrophage-specific genes among the DEGs. DAVID-based gene ontology analysis showed a significant enrichment of “Extrinsic apoptotic signaling pathway” (FDR q = 7.60 × 10− 3) and “Response to insulin” (FDR q = 7.60 × 10− 3) genes, along with an enrichment of genes involved as “Negative regulators of DDX58/IFIH1 signaling” (FDR q = 7.50 × 10− 4) found by querying the REACTOME pathway database. Gene network analyses indicated a general dysregulation of gene inter-connections. Conclusion This translational genomics study highlighted the existence both of individual genes, mostly dysregulated in certain cellular populations (e.g., macrophages), and gene-networks involved in pulmonary reaction after left pneumonectomy. Their involvement in lung homeostasis is largely supported by previous studies, carried out both in humans and in other animal models (under homeostatic or disease-related conditions), that adopted candidate-gene approaches. Overall, the present findings represent a preliminary assessment for future, more focused, studies on compensatory lung adaptation, pulmonary regeneration and functional reload. Supplementary Information The online version contains supplementary material available at 10.1186/s12864-021-08171-3.
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Affiliation(s)
- Valerio Napolioni
- Genomic and Molecular Epidemiology (GAME) Lab., School of Biosciences and Veterinary Medicine, University of Camerino, Camerino, Italy
| | | | - Rossella Potenza
- Department of Thoracic Surgery, University of Perugia Medical School, Perugia, Italy.,Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | | | - Vienna Ludovini
- Department of Medical Oncology, S. Maria Della Misericordia Hospital, Perugia, Italy
| | | | - Francesca R Tofanetti
- Department of Medical Oncology, S. Maria Della Misericordia Hospital, Perugia, Italy
| | - Antonello Bufalari
- Department of Veterinary Medicine, University of Perugia, Perugia, Italy
| | - Stefano Pallotti
- Genetics and Animal Breeding Group, School of Pharmacy, University of Camerino, Camerino, Italy
| | - Camilla Poggi
- Department of Thoracic Surgery, University of Rome Sapienza, Policlinico Umberto I, Viale del Policlinico 155, 00161, Rome, Italy
| | - Marco Anile
- Department of Thoracic Surgery, University of Rome Sapienza, Policlinico Umberto I, Viale del Policlinico 155, 00161, Rome, Italy
| | - Niccolò Daddi
- Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - Federico Venuta
- Department of Thoracic Surgery, University of Rome Sapienza, Policlinico Umberto I, Viale del Policlinico 155, 00161, Rome, Italy
| | - Francesco Puma
- Department of Thoracic Surgery, University of Perugia Medical School, Perugia, Italy
| | - Jacopo Vannucci
- Department of Thoracic Surgery, University of Rome Sapienza, Policlinico Umberto I, Viale del Policlinico 155, 00161, Rome, Italy.
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8
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Nikolskii AA, Shilovskiy IP, Barvinskaia ED, Korneev AV, Sundukova MS, Khaitov MR. Role of STAT3 Transcription Factor in Pathogenesis of Bronchial Asthma. BIOCHEMISTRY. BIOKHIMIIA 2021; 86:1489-1501. [PMID: 34906042 DOI: 10.1134/s0006297921110122] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 09/21/2021] [Accepted: 10/12/2021] [Indexed: 06/14/2023]
Abstract
Bronchial asthma is a heterogeneous chronic inflammatory disease of airways. The studies of molecular and cellular mechanisms of bronchial asthma have established that a wide range of immune (T and B cells, eosinophils, neutrophils, macrophages, etc.) and structural (epithelial and endothelial) cells are involved in its pathogenesis. These cells are activated in response to external stimuli (bacteria, viruses, allergens, and other pollutants) and produce pro-inflammatory factors (cytokines, chemokines, metalloproteinases, etc.), which ultimately leads to the initiation of pathological processes in the lungs. Genes encoding transcription factors of the STAT family (signal transducer and activator of transcription), that includes seven representatives, are involved in the cell activation. Recent studies have shown that the transcription factor STAT3 plays an important role in the activation of the abovementioned cells, thus contributing to the development of asthma. In animal studies, selective inhibition of STAT3 significantly reduces the severity of lung inflammation, which indicates its potential as a therapeutic target. In this review, we describe the mechanisms of STAT3 activation and its role in polarization of Th2/Th17 cells and M2 macrophages, as well as in the dysfunction of endothelial cells, which ultimately leads to development of bronchial asthma symptoms, such as infiltration of neutrophils and eosinophils into the lungs, bronchial hyperreactivity, and the respiratory tract remodeling.
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Affiliation(s)
- Aleksandr A Nikolskii
- National Research Center - Institute of Immunology Federal Medical-Biological Agency of Russia, Moscow, 115522, Russia
| | - Igor P Shilovskiy
- National Research Center - Institute of Immunology Federal Medical-Biological Agency of Russia, Moscow, 115522, Russia.
| | - Ekaterina D Barvinskaia
- National Research Center - Institute of Immunology Federal Medical-Biological Agency of Russia, Moscow, 115522, Russia
| | - Artem V Korneev
- National Research Center - Institute of Immunology Federal Medical-Biological Agency of Russia, Moscow, 115522, Russia
| | - Maria S Sundukova
- National Research Center - Institute of Immunology Federal Medical-Biological Agency of Russia, Moscow, 115522, Russia
| | - Musa R Khaitov
- National Research Center - Institute of Immunology Federal Medical-Biological Agency of Russia, Moscow, 115522, Russia
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9
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Sobah ML, Liongue C, Ward AC. SOCS Proteins in Immunity, Inflammatory Diseases, and Immune-Related Cancer. Front Med (Lausanne) 2021; 8:727987. [PMID: 34604264 PMCID: PMC8481645 DOI: 10.3389/fmed.2021.727987] [Citation(s) in RCA: 63] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Accepted: 08/16/2021] [Indexed: 01/10/2023] Open
Abstract
Cytokine signaling represents one of the cornerstones of the immune system, mediating the complex responses required to facilitate appropriate immune cell development and function that supports robust immunity. It is crucial that these signals be tightly regulated, with dysregulation underpinning immune defects, including excessive inflammation, as well as contributing to various immune-related malignancies. A specialized family of proteins called suppressors of cytokine signaling (SOCS) participate in negative feedback regulation of cytokine signaling, ensuring it is appropriately restrained. The eight SOCS proteins identified regulate cytokine and other signaling pathways in unique ways. SOCS1–3 and CISH are most closely involved in the regulation of immune-related signaling, influencing processes such polarization of lymphocytes and the activation of myeloid cells by controlling signaling downstream of essential cytokines such as IL-4, IL-6, and IFN-γ. SOCS protein perturbation disrupts these processes resulting in the development of inflammatory and autoimmune conditions as well as malignancies. As a consequence, SOCS proteins are garnering increased interest as a unique avenue to treat these disorders.
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Affiliation(s)
| | - Clifford Liongue
- School of Medicine, Deakin University, Geelong, VIC, Australia.,Institue of Mental and Physical Health and Clinical Translation, Deakin University, Geelong, VIC, Australia
| | - Alister C Ward
- School of Medicine, Deakin University, Geelong, VIC, Australia.,Institue of Mental and Physical Health and Clinical Translation, Deakin University, Geelong, VIC, Australia
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Interleukin-24 as a Pulmonary Target Cytokine in Bronchopulmonary Dysplasia. Cell Biochem Biophys 2021; 79:311-320. [PMID: 33683657 DOI: 10.1007/s12013-021-00968-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/15/2021] [Indexed: 12/18/2022]
Abstract
The proliferation of fetal alveolar type II cells (FATIICs) was impaired in bronchopulmonary dysplasia (BPD), which is modulated by hyperoxia and inflammatory response. Interleukin 24 (IL-24), a cytokine produced by certain cell types, plays an essential role in inflammation and host protection against infection. However, the ability of FATIICs to produce IL-24 remains unclear, and the role of IL-24 in BPD progression is yet to be determined. With reverse transcription quantitative polymerase chain reaction (RT-qPCR) and enzyme-linked immunosorbent assay, the authors evaluated whether FATIICs produce IL-24 in physiological conditions. The authors quantified IL-24 expression in the lungs of newborn rat pups exposed to hyperoxia (70% oxygen) and in FATIICs isolated on embryonic day 19 that were exposed to 95% oxygen or lipopolysaccharide (LPS). The role of IL-24 in FATIICs, cell proliferation, cell apoptosis, and cell cycle were further evaluated by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide and flow cytometric analysis. Also, they assessed caspase-3 and SOCS3 mRNA in IL-24 siRNA-treated cells by using RT-qPCR. During culture, IL-24 mRNA and protein levels in FATIICs gradually decreased with FATIIC differentiation. IL-24 expression increased significantly in rat lungs exposed to hyperoxia and FATIICs exposed to oxygen or LPS. Recombinant IL-24 enhanced cell proliferation by decreasing the proportion of apoptotic cells and increasing the proportion of cells in the S phase. The IL-24 siRNA-treated cells expressed more caspase-3 mRNA. Furthermore, suppressor of cytokine signaling 3 (SOCS3) mRNA was significantly decreased in rats and FATIICs exposed to oxygen, whereas it dramatically increased in FATIICs exposed to LPS. The IL-24 siRNA-treated cells expressed more SOCS3 mRNA. These studies suggest IL-24 is a pulmonary target cytokine in BPD, and may possibly regulate SOCS3 in oxidative stress and inflammation of the lung.
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Karki P, Ke Y, Zhang CO, Li Y, Tian Y, Son S, Yoshimura A, Kaibuchi K, Birukov KG, Birukova AA. SOCS3-microtubule interaction via CLIP-170 and CLASP2 is critical for modulation of endothelial inflammation and lung injury. J Biol Chem 2021; 296:100239. [PMID: 33372035 PMCID: PMC7949054 DOI: 10.1074/jbc.ra120.014232] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 11/23/2020] [Accepted: 12/28/2020] [Indexed: 12/12/2022] Open
Abstract
Proinflammatory cytokines such as IL-6 induce endothelial cell (EC) barrier disruption and trigger an inflammatory response in part by activating the Janus kinase-signal transducer and activator of transcription (JAK-STAT) pathway. The protein suppressor of cytokine signaling-3 (SOCS3) is a negative regulator of JAK-STAT, but its role in modulation of lung EC barrier dysfunction caused by bacterial pathogens has not been investigated. Using human lung ECs and EC-specific SOCS3 knockout mice, we tested the hypothesis that SOCS3 confers microtubule (MT)-mediated protection against endothelial dysfunction. SOCS3 knockdown in cultured ECs or EC-specific SOCS3 knockout in mice resulted in exacerbated lung injury characterized by increased permeability and inflammation in response to IL-6 or heat-killed Staphylococcus aureus (HKSA). Ectopic expression of SOCS3 attenuated HKSA-induced EC dysfunction, and this effect required assembled MTs. SOCS3 was enriched in the MT fractions, and treatment with HKSA disrupted SOCS3-MT association. We discovered that-in addition to its known partners gp130 and JAK2-SOCS3 interacts with MT plus-end binding proteins CLIP-170 and CLASP2 via its N-terminal domain. The resulting SOCS3-CLIP-170/CLASP2 complex was essential for maximal SOCS3 anti-inflammatory effects. Both IL-6 and HKSA promoted MT disassembly and disrupted SOCS3 interaction with CLIP-170 and CLASP2. Moreover, knockdown of CLIP-170 or CLASP2 impaired SOCS3-JAK2 interaction and abolished the anti-inflammatory effects of SOCS3. Together, these findings demonstrate for the first time an interaction between SOCS3 and CLIP-170/CLASP2 and reveal that this interaction is essential to the protective effects of SOCS3 in lung endothelium.
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Affiliation(s)
- Pratap Karki
- Department of Medicine, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Yunbo Ke
- Department of Anesthesiology, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Chen-Ou Zhang
- Department of Medicine, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Yue Li
- Department of Medicine, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Yufeng Tian
- Section of Pulmonary and Critical Care Medicine, Department of Medicine, University of Chicago, Chicago, Illinois, USA
| | - Sophia Son
- Section of Pulmonary and Critical Care Medicine, Department of Medicine, University of Chicago, Chicago, Illinois, USA
| | - Akihiko Yoshimura
- Department of Microbiology and Immunology, Keio University, Tokyo, Japan
| | - Kozo Kaibuchi
- Department of Cell Pharmacology, Nagoya University, Nagoya, Japan
| | - Konstantin G Birukov
- Department of Anesthesiology, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Anna A Birukova
- Department of Medicine, University of Maryland School of Medicine, Baltimore, Maryland, USA.
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Xu K, Wu N, Min Z, Li Z, Zhu T, Liu C, Zeng Y, Song J, Mao R, Ji H, Jiang Z, Chen Z. Adoptive transfer of bone marrow-derived dendritic cells (BMDCs) alleviates OVA-induced allergic airway inflammation in asthmatic mice. Sci Rep 2020; 10:13915. [PMID: 32807859 PMCID: PMC7431555 DOI: 10.1038/s41598-020-70467-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Accepted: 06/30/2020] [Indexed: 01/10/2023] Open
Abstract
Airway dendritic cells (DCs) are recognized as important factors in the mechanisms of allergic inflammatory diseases. Suppressor of cytokine signaling 3 (SOCS3) is involved in regulating the functions of T cells and macrophages, but the roles of SOCS3-expressing DCs in the pathogeneses of allergic inflammatory diseases are still controversial. We compared the effects of adoptively transferred SOCS3-/- and SOCS3+/+ bone marrow-derived DCs (BMDCs) on airway inflammation in ovalbumin (OVA)-sensitized asthmatic mice. Adoptive transfer of mature DCs (lipopolysaccharide [LPS]-induced DCs, DClps) with or without SOCS3 gene expression significantly ameliorated allergic airway inflammation. SOCS3-/- DCs slightly attenuated BMDC-induced immunogenic tolerance. DClps migrated to OVA-sensitized lungs with higher efficiency than immature DCs (DCim). DClps with or without SOCS3 greatly improved lung pathology scores and alleviated airway inflammatory cell infiltration after adoptive transfer into mice; they also increased interleukin-10 (IL-10) and transforming growth factor-β (TGF-β) production and inhibited signal transducer and activator of transcription (STAT) 4 and STAT6 signaling in the lungs after OVA sensitization. In conclusion, the BMDC adoptive transfer-induced immunogenic tolerance in OVA-sensitized mice might not be due to SOCS3 gene depletion. BMDC adoptive transfer may be developed into a new approach that alleviates asthma by modulating the balance between immune tolerance and inflammation.
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Affiliation(s)
- Kan Xu
- Geriatric Department of Zhongshan Hospital, Shanghai Institute of Respiratory Disease, Fudan University, Shanghai, China
| | - Nan Wu
- Geriatric Department of Zhongshan Hospital, Shanghai Institute of Respiratory Disease, Fudan University, Shanghai, China
| | - Zhihui Min
- Research Center of Zhongshan Hospital, Fudan University, Shanghai, China
| | - Zheng Li
- Research Center of Zhongshan Hospital, Fudan University, Shanghai, China
| | - Tao Zhu
- Department of Respiratory Medicine, Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
- California National Primate Research Center, Davis, CA, USA
| | - Chunfang Liu
- Department of Laboratory Medicine, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yuzhen Zeng
- Respiratory Division of Zhongshan Hospital, Shanghai Institute of Respiratory Disease, Fudan University, No. 180 Fenglin Road, Shanghai, China
| | - Juan Song
- Respiratory Division of Zhongshan Hospital, Shanghai Institute of Respiratory Disease, Fudan University, No. 180 Fenglin Road, Shanghai, China
| | - Ruolin Mao
- Respiratory Division of Zhongshan Hospital, Shanghai Institute of Respiratory Disease, Fudan University, No. 180 Fenglin Road, Shanghai, China
| | - Hong Ji
- Department of Anatomy, Physiology and Cell Biology, School of Veterinary Medicine, University of California, Davis, CA, USA.
- California National Primate Research Center, Davis, CA, USA.
| | - Zhilong Jiang
- Respiratory Division of Zhongshan Hospital, Shanghai Institute of Respiratory Disease, Fudan University, No. 180 Fenglin Road, Shanghai, China.
| | - Zhihong Chen
- Respiratory Division of Zhongshan Hospital, Shanghai Institute of Respiratory Disease, Fudan University, No. 180 Fenglin Road, Shanghai, China.
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Jiang Y, Rosborough BR, Chen J, Das S, Kitsios GD, McVerry BJ, Mallampalli RK, Lee JS, Ray A, Chen W, Ray P. Single cell RNA sequencing identifies an early monocyte gene signature in acute respiratory distress syndrome. JCI Insight 2020; 5:135678. [PMID: 32554932 PMCID: PMC7406263 DOI: 10.1172/jci.insight.135678] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 06/03/2020] [Indexed: 01/16/2023] Open
Abstract
Acute respiratory distress syndrome (ARDS) results from overwhelming pulmonary inflammation. Prior bulk RNA sequencing provided limited insights into ARDS pathogenesis. We used single cell RNA sequencing to probe ARDS at a higher resolution. PBMCs of patients with pneumonia and sepsis with early ARDS were compared with those of sepsis patients who did not develop ARDS. Monocyte clusters from ARDS patients revealed multiple distinguishing characteristics in comparison with monocytes from patients without ARDS, including downregulation of SOCS3 expression, accompanied by a proinflammatory signature with upregulation of multiple type I IFN-induced genes, especially in CD16+ cells. To generate an ARDS risk score, we identified upregulation of 29 genes in the monocytes of these patients, and 17 showed a similar profile in cells of patients in independent cohorts. Monocytes had increased expression of RAB11A, known to inhibit neutrophil efferocytosis; ATP2B1, a calcium pump that exports Ca2+ implicated in endothelial barrier disruption; and SPARC, associated with processing of procollagen to collagen. These data show that monocytes of ARDS patients upregulate expression of genes not just restricted to those associated with inflammation. Together, our findings identify molecules that are likely involved in ARDS pathogenesis that may inform biomarker and therapeutic development.
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Affiliation(s)
- Yale Jiang
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,School of Medicine, Tsinghua University, Beijing, China
| | - Brian R. Rosborough
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, and
| | - Jie Chen
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, and
| | - Sudipta Das
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, and
| | - Georgios D. Kitsios
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, and
| | - Bryan J. McVerry
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, and
| | - Rama K. Mallampalli
- Pulmonary, Critical Care, and Sleep Medicine, The Ohio State University Wexner Medical Center, Davis Heart Lung Research Institute, Columbus, Ohio
| | - Janet S. Lee
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, and
| | - Anuradha Ray
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, and,Department of Immunology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Wei Chen
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Prabir Ray
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, and,Department of Immunology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
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Dietary Silk Peptide Inhibits LPS-Induced Inflammatory Responses by Modulating Toll-Like Receptor 4 (TLR4) Signaling. Biomolecules 2020; 10:biom10050771. [PMID: 32429220 PMCID: PMC7277379 DOI: 10.3390/biom10050771] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 05/13/2020] [Accepted: 05/13/2020] [Indexed: 12/15/2022] Open
Abstract
Acid-hydrolyzed silk peptide (SP) is a valuable material that has been used traditionally to treat various diseases, however, the mechanism by which it affects inflammatory responses is unknown. To examine the effects of SP on inflammatory responses, we used macrophages as a vehicle for examining signaling via toll-like receptor 4 (TLR4), which plays an important role in innate immune responses to pathogenic infections and pathogen-derived molecules such as lipopolysaccharide (LPS). We then confirmed the anti-inflammatory effects of SP by examining lymph node, spleen, and serum samples from C57BL/6 mice injected with LPS. We also used LPS-induced bone marrow-derived macrophages and RAW264.7 cells (a murine macrophage cell line) to identify the mechanism by which SP modulates immune responses via the TLR4 signaling pathway. In addition, we showed that SP prevents LPS-induced production of nitric oxide and reactive oxygen species. In summary, SP inhibits LPS-induced inflammatory responses by modulating the TLR4 signaling pathway.
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Jiang Z, Chen Z, Hu L, Qiu L, Zhu L. Calreticulin Blockade Attenuates Murine Acute Lung Injury by Inducing Polarization of M2 Subtype Macrophages. Front Immunol 2020; 11:11. [PMID: 32082309 PMCID: PMC7002388 DOI: 10.3389/fimmu.2020.00011] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Accepted: 01/06/2020] [Indexed: 12/12/2022] Open
Abstract
Calreticulin (CALR) has anti-tumor effects by increasing dendritic cell maturation and tumor antigen presentation. However, whether CALR affects macrophages and modulates progression of acute respiratory distress syndrome/acute lung injury (ARDS/ALI) remains unknown. In this study, we discovered that CALR protein was highly expressed in the mice with LPS-induced ALI and CALR expression level was positively correlated to the severity of ALI. Commercial anti-CALR antibody (aCALR) can neutralize recombinant CALR (rCALR) and suppress the expression of TNF-alpha and IL-6 in the rCALR-treated macrophages. Blocking CALR activity by intraperitoneal (i.p.) administration of aCALR significantly suppressed ALI, accompanied with lower total cell counts, neutrophil and T cell infiltration in bronchoalveolar lavage (BAL) and lung tissues. The expression of CXCL15, IL-6, IL-1beta, TNF-alpha, and CALR were significantly reduced, in association with more polarization of Siglec F+CD206+M2 subtype macrophages in the aCALR-treated mice. Pre-depletion of circulating monocytes did not abolish the aCALR-mediated suppression of ALI. Further analysis in bone marrow-derived macrophages (BMDMs) showed that aCALR suppressed the expression of CD80, IL-6, IL-1beta, IL-18, NLRP3, and p-p38 MAPK; but enhanced the expression of CD206 and IL-10. In addition, we observed more expression and phosphorylation of STAT6 in the aCALR-treated BMDM. Lack of STAT6 resulted in comparable and slightly higher expression of CALR, TNF-alpha and IL-6 in the aCALR-treated STAT6-/- BMDMs than the untreated cells. Therefore, we conclude that CALR is a novel biomarker in the evaluation of ALI. Blocking CALR activity by aCALR effectively suppressed ALI independent of circulating monocytes. Siglec F+CD206+M2 subtype macrophages and p38 MAPK/STAT6 signaling pathway played important role in the immune regulation of aCALR. Blocking CALR activity is a promising therapeutic approach in the treatment of ARDS/ALI.
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Affiliation(s)
- Zhilong Jiang
- Department of Pulmonary Medicine, Fudan University Zhongshan Hospital, Shanghai, China
| | - Zhihong Chen
- Department of Pulmonary Medicine, Fudan University Zhongshan Hospital, Shanghai, China
| | - Lu Hu
- Department of Pulmonary Medicine, Fudan University Zhongshan Hospital, Shanghai, China
| | - Lin Qiu
- Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, Shanghai, China
| | - Lei Zhu
- Department of Pulmonary Medicine, Fudan University Zhongshan Hospital, Shanghai, China
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16
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Pan W, Xu X, Wang Y, Song X. Interleukin-35 reduces inflammation in acute lung injury through inhibiting TLR4/NF-κB signaling pathways. Exp Ther Med 2020; 19:1695-1700. [PMID: 32104222 PMCID: PMC7027134 DOI: 10.3892/etm.2020.8407] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 09/20/2019] [Indexed: 12/22/2022] Open
Abstract
Acute lung injury (ALI) in children is a complex disease that is accompanied by an inflammatory response. The pathogenesis of ALI in children is not yet well understood. Mice with ALI exhibit inflammation of the lungs and decreased expression of interleukin (IL)-35. To investigate whether the function of IL-35 affects lipopolysaccharide (LPS)-induced ALI, IL-35 was overexpressed in cells. Enzyme-linked immunosorbent assays indicated decreased levels of IL-6 and tumor necrosis factor-α in LPS-induced and agomir-IL-35-treated murine RAW264.7 macrophages. Finally, toll-like receptor 4 (TLR4)/NF-κB signaling pathways were analyzed. The expression of TLR4, NF-κB p65 and NF-κB p50 were decreased, as was the degradation of NF-κB inhibitor-α, in LPS-induced and agomir-IL-35-treated murine RAW264.7 macrophages. The results of the present study demonstrated that IL-35 may exhibit a protective role in ALI by modulating the TLR4/NF-κB signaling pathways.
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Affiliation(s)
- Wei Pan
- Department of Pediatrics, The Second Hospital of Jilin University, Changchun, Jilin 130041, P.R. China
| | - Xiaoheng Xu
- Department of Pediatrics, The Second Hospital of Jilin University, Changchun, Jilin 130041, P.R. China
| | - Yan Wang
- Experimental Center, Jilin Police College, Changchun, Jilin 130117, P.R. China
| | - Xingyu Song
- Department of Pediatrics, The Second Hospital of Jilin University, Changchun, Jilin 130041, P.R. China
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17
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Gong KQ, Frevert C, Manicone AM. Deletion of LysM in LysMCre Recombinase Homozygous Mice is Non-contributory in LPS-Induced Acute Lung Injury. Lung 2019; 197:819-823. [PMID: 31705272 PMCID: PMC7671567 DOI: 10.1007/s00408-019-00286-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Accepted: 10/19/2019] [Indexed: 11/24/2022]
Abstract
Lysozyme is an important component of the innate immune system and has roles in peptidoglycan cleavage of gram-positive organisms. Myeloid cells highly express the isoform, lysozyme M, and its promoter has been used to direct Cre recombinase expression to target deletion of floxed genes in myeloid cells. However, generation of the LysMCre mouse effectively disrupts the LysM gene, and mice homozygous for the Cre allele lack the LysM gene product. To test the contribution of LysM in sterile acute lung injury, we generated LysMCre mice homozygous for the Cre allele (+/+) or wild-type allele (-/-). These mice were challenged with LPS delivered via oropharygneal aspiration. Mice were monitored and weighed daily, and BAL cell counts, differential, protein, and cytokine levels were assessed at days 2 and 4. LysMCre+/+ and LysMCre-/- had similar weight loss and recovery, and similar inflammatory responses to LPS at days 2 and 4. These findings indicate that loss of LysM and expression of Cre recombinase are non-contributory in sterile acute lung injury.
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Affiliation(s)
- Ke-Qin Gong
- Division of Pulmonary and Critical Care Medicine, Center for Lung Biology, University of Washington, Seattle, WA, USA
| | - Charles Frevert
- Department of Comparative Medicine, Center for Lung Biology, University of Washington, Seattle, WA, USA
| | - Anne M Manicone
- Division of Pulmonary and Critical Care Medicine, Center for Lung Biology, University of Washington, Seattle, WA, USA.
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18
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Hu L, Chen Z, Li L, Jiang Z, Zhu L. Resveratrol decreases CD45 + CD206 - subtype macrophages in LPS-induced murine acute lung injury by SOCS3 signalling pathway. J Cell Mol Med 2019; 23:8101-8113. [PMID: 31559687 PMCID: PMC6850919 DOI: 10.1111/jcmm.14680] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Revised: 08/13/2019] [Accepted: 08/25/2019] [Indexed: 02/06/2023] Open
Abstract
Acute lung injury/acute respiratory distress syndrome (ALI/ARDS) are life-threatening condition in critically ill patients. Resveratrol (Res), a natural polyphenol, has therapeutic effect in animal model with ALI; however, whether Res attenuates ALI through modulation of macrophage phenotypes in the animal model remains unknown. We in this study treated LPS-induced murine ALI with 30 mg/kg Res and observed significantly reduced severity of ALI in the Res-treated mice 48 hours after Res treatment. Neutrophil infiltrates were significantly reduced, accompanied with lower infiltration of CD45+ Siglec F- phenotype macrophages, but higher population of CD45+ Siglec F+ and CD45+ CD206+ alternatively activated macrophages (M2 cells) in the Res-treated mice with ALI. In addition, the expression of IL-1beta and CXCL15 cytokines was suppressed in the treated mice. However, Res treatment in mice with myeloid cell-restricted SOCS3 deficiency did not significantly attenuate ALI severity and failed to increase population of both CD45+ Siglec F+ and CD45+ CD206+ M2 subtype macrophages in the murine ALI. Further studies in wild-type macrophages revealed that Res treatment effectively reduced the expression of IL-6 and CXCL15, and increased the expression of arginase-1, SIRT1 and SOCS3. However, macrophages' lack of SOCS3 expression were resistant to the Res-induced suppression of IL-6 and CXCL15 in vitro. Thus, we conclude that Res suppressed CD45+ Siglec F- and CD45+ CD206- M1 subtype macrophages through SOCS3 signalling in the LPS-induced murine ALI.
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Affiliation(s)
- Lu Hu
- Department of Pulmonary Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Zhihong Chen
- Department of Pulmonary Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Liyang Li
- Department of Pulmonary Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Zhilong Jiang
- Department of Pulmonary Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Lei Zhu
- Department of Pulmonary Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
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Abstract
Background Acute lung injury in children is a complicated disease linked to the inflammation response. MicroRNA (miRNA) plays a vital role in acute lung injury. However, the role of miR-30b-5p in the pathogenesis of acute lung injury is not clear. The purpose of our study was to investigate the alteration of miR-30b-5p, suppressor of cytokine signaling 3 (SOCS3), in children with acute lung injury, and also in a mouse model of acute lung injury induced by the endotoxin lipopolysaccharide (LPS). Material/Methods The levels of miR-30b-5p, SOCS3, FKN (fractalkine), tumor necrosis factor (TNF)-α, NF-κB (nuclear factor kappa-light-chain-enhancer of activated B), interleukin-6 (IL-6), and IL-8 were detected by ELISA (enzyme-linked immunosorbent assay), western blot, and qRT-PCR (quantitative reverse transcription polymerase chain reaction) assay. The alveolar permeability index and the ratio of wet weight/dry weight (W/D) were measured. Then, we examined the inflammation and apoptosis using hematoxylin and eosin (H&E) staining and TUNEL (terminal deoxynucleotidyl transferase dUTP nick end labeling) assay. Additionally, SOCS3 was investigated as a direct target of miR-30a-5p in RAW264.7 cells by dual-luciferase reporter assays. Results Our study indicated that the level of miR-30b-5p was decreased and the levels of SOCS3, FKN, TNF-α, NF-κB, IL-6, and IL-8 were increased in lung tissue, serum, and bronchoalveolar lavage fluid of mice with acute lung injury induced by LPS. In addition, LPS increased alveolar permeability index and the ratio of W/D and induced inflammatory responses, including the activation of the NF-κB pathway in a mouse model. Furthermore, SOCS3 was confirmed to be a target of miR-30a-5p in RAW264.7 cells. Conclusions Our data demonstrated an important role for miR-30b-5p in acute lung injury inflammation and suggested that miR-30b-5p might be an important therapy target in children with acute lung injury.
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Affiliation(s)
- Ting Zhou
- Department of Pediatrics, The Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an, Jiangsu, China (mainland)
| | - Yong-Li Chen
- Department of Pediatrics, Wuhan Fourth Hospital; Puai Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China (mainland)
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Verckist L, Pintelon I, Timmermans JP, Brouns I, Adriaensen D. Selective activation and proliferation of a quiescent stem cell population in the neuroepithelial body microenvironment. Respir Res 2018; 19:207. [PMID: 30367659 PMCID: PMC6203996 DOI: 10.1186/s12931-018-0915-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 10/17/2018] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND The microenvironment (ME) of neuroepithelial bodies (NEBs) harbors densely innervated groups of pulmonary neuroendocrine cells that are covered by Clara-like cells (CLCs) and is believed to be important during development and for adult airway epithelial repair after severe injury. Yet, little is known about its potential stem cell characteristics in healthy postnatal lungs. METHODS Transient mild lung inflammation was induced in mice via a single low-dose intratracheal instillation of lipopolysaccharide (LPS). Bronchoalveolar lavage fluid (BALF), collected 16 h after LPS instillation, was used to challenge the NEB ME in ex vivo lung slices of control mice. Proliferating cells in the NEB ME were identified and quantified following simultaneous LPS instillation and BrdU injection. RESULTS The applied LPS protocol induced very mild and transient lung injury. Challenge of lung slices with BALF of LPS-treated mice resulted in selective Ca2+-mediated activation of CLCs in the NEB ME of control mice. Forty-eight hours after LPS challenge, a remarkably selective and significant increase in the number of divided (BrdU-labeled) cells surrounding NEBs was observed in lung sections of LPS-challenged mice. Proliferating cells were identified as CLCs. CONCLUSIONS A highly reproducible and minimally invasive lung inflammation model was validated for inducing selective activation of a quiescent stem cell population in the NEB ME. The model creates new opportunities for unraveling the cellular mechanisms/pathways regulating silencing, activation, proliferation and differentiation of this unique postnatal airway epithelial stem cell population.
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Affiliation(s)
- Line Verckist
- Laboratory of Cell Biology and Histology, Department of Veterinary Sciences, University of Antwerp, Universiteitsplein 1, 2610, Wilrijk, Antwerpen, Belgium
| | - Isabel Pintelon
- Laboratory of Cell Biology and Histology, Department of Veterinary Sciences, University of Antwerp, Universiteitsplein 1, 2610, Wilrijk, Antwerpen, Belgium
| | - Jean-Pierre Timmermans
- Laboratory of Cell Biology and Histology, Department of Veterinary Sciences, University of Antwerp, Universiteitsplein 1, 2610, Wilrijk, Antwerpen, Belgium
| | - Inge Brouns
- Laboratory of Cell Biology and Histology, Department of Veterinary Sciences, University of Antwerp, Universiteitsplein 1, 2610, Wilrijk, Antwerpen, Belgium
| | - Dirk Adriaensen
- Laboratory of Cell Biology and Histology, Department of Veterinary Sciences, University of Antwerp, Universiteitsplein 1, 2610, Wilrijk, Antwerpen, Belgium.
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