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Patel VJ, Joharapurkar AA, Kshirsagar SG, Patel MS, Savsani HH, Dodiya HS, Rakhasiya MH, Patel AK, Sundar R, Jain MR. HIF Stabilizer Desidustat Protects against Complement-Mediated Diseases. Drug Res (Stuttg) 2024. [PMID: 38991528 DOI: 10.1055/a-2347-9919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/13/2024]
Abstract
Complement cascade is a defence mechanism useful for eliminating pathogenic microorganisms and damaged cells. However, activation of alternative complement system can also cause inflammation and promote kidney and retinal disease progression. Inflammation causes tissue hypoxia, which induces hypoxia-inducible factor (HIF) and HIF helps the body to adapt to inflammation. In this study, we investigated the effect of HIF stabilizer desidustat in complement-mediated diseases. Oral administration of desidustat (15 mg/kg) was effective to reduce the kidney injury in mice that was induced by either lipopolysaccharide (LPS), doxorubicin or bovine serum albumin (BSA)-overload. Complement activation-induced membrane attack complex (MAC) formation and factor B activity were also reduced by desidustat treatment. In addition, desidustat was effective against membranous nephropathy caused by cationic BSA and retinal degeneration induced by sodium iodate in mice. C3-deposition, proteinuria, malondialdehyde, and interleukin-1ß were decreased and superoxide dismutase was increased by desidustat treatment in cBSA-induced membranous nephropathy. Desidustat specifically inhibited alternative complement system, without affecting the lectin-, or classical complement pathway. This effect appears to be mediated by inhibition of factor B. These data demonstrate the potential therapeutic value of HIF stabilization by desidustat in treatment of complement-mediated diseases.
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Affiliation(s)
- Vishal J Patel
- Department of Pharmacology and Toxicology, Zydus Research Centre, Zydus Lifesciences Limited, Moraiya, Ahmedabad, India
| | - Amit A Joharapurkar
- Department of Pharmacology and Toxicology, Zydus Research Centre, Zydus Lifesciences Limited, Moraiya, Ahmedabad, India
| | - Samadhan G Kshirsagar
- Department of Pharmacology and Toxicology, Zydus Research Centre, Zydus Lifesciences Limited, Moraiya, Ahmedabad, India
| | - Maulik S Patel
- Department of Pharmacology and Toxicology, Zydus Research Centre, Zydus Lifesciences Limited, Moraiya, Ahmedabad, India
| | - Hardikkumar H Savsani
- Department of Pharmacology and Toxicology, Zydus Research Centre, Zydus Lifesciences Limited, Moraiya, Ahmedabad, India
| | - Harshad S Dodiya
- Department of Pharmacology and Toxicology, Zydus Research Centre, Zydus Lifesciences Limited, Moraiya, Ahmedabad, India
| | - Milan H Rakhasiya
- Department of Pharmacology and Toxicology, Zydus Research Centre, Zydus Lifesciences Limited, Moraiya, Ahmedabad, India
| | - Ashvin K Patel
- Department of Pharmacology and Toxicology, Zydus Research Centre, Zydus Lifesciences Limited, Moraiya, Ahmedabad, India
| | - Rajesh Sundar
- Department of Pharmacology and Toxicology, Zydus Research Centre, Zydus Lifesciences Limited, Moraiya, Ahmedabad, India
| | - Mukul R Jain
- Department of Pharmacology and Toxicology, Zydus Research Centre, Zydus Lifesciences Limited, Moraiya, Ahmedabad, India
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Vittal R, Fisher AJ, Thompson EL, Cipolla EM, Gu H, Mickler EA, Varre A, Agarwal M, Kim KK, Vasko MR, Moore BB, Lama VN. Overexpression of Decay Accelerating Factor Mitigates Fibrotic Responses to Lung Injury. Am J Respir Cell Mol Biol 2022; 67:459-470. [PMID: 35895592 PMCID: PMC9564933 DOI: 10.1165/rcmb.2021-0463oc] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
CD55 or decay accelerating factor (DAF), a ubiquitously expressed glycosylphosphatidylinositol (GPI)-anchored protein, confers a protective threshold against complement dysregulation which is linked to the pathogenesis of idiopathic pulmonary fibrosis (IPF). Since lung fibrosis is associated with downregulation of DAF, we hypothesize that overexpression of DAF in fibrosed lungs will limit fibrotic injury by restraining complement dysregulation. Normal primary human alveolar type II epithelial cells (AECs) exposed to exogenous complement 3a or 5a, and primary AECs purified from IPF lungs demonstrated decreased membrane-bound DAF expression with concurrent increase in the endoplasmic reticulum (ER) stress protein, ATF6. Increased loss of extracellular cleaved DAF fragments was detected in normal human AECs exposed to complement 3a or 5a, and in lungs of IPF patients. C3a-induced ATF6 expression and DAF loss was inhibited using pertussis toxin (an enzymatic inactivator of G-protein coupled receptors), in murine AECs. Treatment with soluble DAF abrogated tunicamycin-induced C3a secretion and ER stress (ATF6 and BiP expression) and restored epithelial cadherin. Bleomycin-injured fibrotic mice subjected to lentiviral overexpression of DAF demonstrated diminished levels of local collagen deposition and complement activation. Further analyses showed diminished release of DAF fragments, as well as reduction in apoptosis (TUNEL and caspase 3/7 activity), and ER stress-related transcripts. Loss-of-function studies using Daf1 siRNA demonstrated worsened lung fibrosis detected by higher mRNA levels of Col1a1 and epithelial injury-related Muc1 and Snai1, with exacerbated local deposition of C5b-9. Our studies provide a rationale for rescuing fibrotic lungs via DAF induction that will restrain complement dysregulation and lung injury.
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Affiliation(s)
- Ragini Vittal
- Division of Pulmonary and Critical Care, Department of Internal Medicine and
| | - Amanda J. Fisher
- Division of Pulmonary and Critical Care, Department of Medicine and
| | - Eric L. Thompson
- Department of Pharmacology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Ellyse M. Cipolla
- Division of Pulmonary and Critical Care, Department of Internal Medicine and
| | - Hongmei Gu
- Division of Pulmonary and Critical Care, Department of Medicine and
| | | | - Ananya Varre
- Division of Pulmonary and Critical Care, Department of Internal Medicine and
| | - Manisha Agarwal
- Division of Pulmonary and Critical Care, Department of Internal Medicine and
| | - Kevin K. Kim
- Division of Pulmonary and Critical Care, Department of Internal Medicine and
| | - Michael R. Vasko
- Department of Pharmacology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Bethany B. Moore
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, Michigan; and
| | - Vibha N. Lama
- Division of Pulmonary and Critical Care, Department of Internal Medicine and
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Hamanaka RB, Mutlu GM. Our Compliments to the Authors: Decay Accelerating Factor and the Complement System in Pulmonary Fibrosis. Am J Respir Cell Mol Biol 2022; 67:415-416. [PMID: 35901283 PMCID: PMC9564930 DOI: 10.1165/rcmb.2022-0268ed] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Affiliation(s)
- Robert B. Hamanaka
- Section of Pulmonary and Critical Care MedicineThe University of ChicagoChicago, Illinois
| | - Gökhan M. Mutlu
- Section of Pulmonary and Critical Care MedicineThe University of ChicagoChicago, Illinois
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Mortazavi-Jahromi SS, Aslani M. Dysregulated miRNAs network in the critical COVID-19: An important clue for uncontrolled immunothrombosis/thromboinflammation. Int Immunopharmacol 2022; 110:109040. [PMID: 35839566 PMCID: PMC9271492 DOI: 10.1016/j.intimp.2022.109040] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 07/02/2022] [Accepted: 07/06/2022] [Indexed: 11/17/2022]
Abstract
Known as a pivotal immunohemostatic response, immunothrombosis is activated to restrict the diffusion of pathogens. This beneficial intravascular defensive mechanism represents the close interaction between the immune and coagulation systems. However, its uncontrolled form can be life-threatening to patients with the critical coronavirus disease 2019 (COVID-19). Hyperinflammation and ensuing cytokine storm underlie the activation of the coagulation system, something which results in the provocation of more immune-inflammatory responses by the thrombotic mediators. This vicious cycle causes grave clinical complications and higher risks of mortality. Classified as an evolutionarily conserved family of the small non-coding RNAs, microRNAs (miRNAs) serve as the fine-tuners of genes expression and play a key role in balancing the pro/anticoagulant and pro-/anti-inflammatory factors maintaining homeostasis. Therefore, any deviation from their optimal expression levels or efficient functions can lead to severe complications. Despite their extensive effects on the molecules and processes involved in uncontrolled immunothrombosis, some genetic agents and uncontrolled immunothrombosis-induced interfering factors (e.g., miRNA-single nucleotide polymorphysms (miR-SNPs), the complement system components, nicotinamide adenine dinucleotide phosphate (NADPH) oxidases, and reactive oxygen species (ROS)) have apparently disrupted their expressions/functions. This review study aims to give an overview of the role of miRNAs in the context of uncontrolled immunothrombosis/thromboinflammation accompanied by some presumptive interfering factors affecting their expressions/functions in the critical COVID-19. Detecting, monitoring, and resolving these interfering agents mafy facilitate the design and development of the novel miRNAs-based therapeutic approaches to the reduction of complications incidence and mortality in patients with the critical COVID-19.
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Affiliation(s)
- Seyed Shahabeddin Mortazavi-Jahromi
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran; Department of Cellular and Molecular Biology, Kish International Campus, University of Tehran, Kish, Iran.
| | - Mona Aslani
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
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Chang DY, Li XQ, Chen M, Zhao MH. Dapagliflozin Ameliorates Diabetic Kidney Disease via Upregulating Crry and Alleviating Complement Over-activation in db/db Mice. Front Pharmacol 2021; 12:729334. [PMID: 34712135 PMCID: PMC8546210 DOI: 10.3389/fphar.2021.729334] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 09/29/2021] [Indexed: 12/30/2022] Open
Abstract
Sodium-glucose cotransporter 2(SGLT2) inhibitors show prominent renal protective effect in diabetic kidney disease (DKD), anti-inflammatory effect being one of its key mechanisms. Over-activation of the complement system, a crucial part of innate immunity, plays an important role in DKD. We aimed to investigate the effect of SGLT2 inhibitors on alleviating complement over-activation in DKD. Db/db mice were randomly divided into two groups, with 7 mice in each group treated with dapagliflozin and vehicle respectively, and 7 mice in m/m mice group. Laboratory and renal pathological parameters were evaluated. Mouse proximal tubular epithelial cells (MPTECs) were cultured and treated with high glucose. Dapagliflozin and dimethyloxallyl glycine (DMOG) were added as conditional treatment. Dapagliflozin-treated db/db mice showed significantly lower urinary albumin than vehicle-treated ones. Besides typical glomerular and tubulointerstitial injury, both C3b and membrane attack complex (MAC) depositions were significantly attenuated in dapagliflozin-treated db/db mice. The expression of complement receptor type 1-related protein y (Crry), a key complement regulator which inhibits complement over-activation, was significantly upregulated by dapagliflozin. Dapagliflozin-mediated Crry upregulation was associated with inhibition of HIF-1α accumulation under high glucose. When HIF-1α expression was stabilized by DMOG, the protective effect of dapagliflozin via upregulating Crry was blocked. In conclusion, dapagliflozin could attenuate complement over-activation in diabetic mice via upregulating Crry, which is associated with the suppression of HIF-1α accumulation in MPTECs.
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Affiliation(s)
- Dong-Yuan Chang
- Renal Division, Department of Medicine, Peking University First Hospital, Beijing, China.,Key Laboratory of Renal Disease, Ministry of Health of China, Beijing, China.,Research Units of Diagnosis and Treatment of Immune-Mediated Kidney Diseases, Chinese Academy of Medical Sciences, Beijing, China
| | - Xiao-Qian Li
- Renal Division, Department of Medicine, Peking University First Hospital, Beijing, China.,Key Laboratory of Renal Disease, Ministry of Health of China, Beijing, China.,Research Units of Diagnosis and Treatment of Immune-Mediated Kidney Diseases, Chinese Academy of Medical Sciences, Beijing, China
| | - Min Chen
- Renal Division, Department of Medicine, Peking University First Hospital, Beijing, China.,Key Laboratory of Renal Disease, Ministry of Health of China, Beijing, China.,Research Units of Diagnosis and Treatment of Immune-Mediated Kidney Diseases, Chinese Academy of Medical Sciences, Beijing, China
| | - Ming-Hui Zhao
- Renal Division, Department of Medicine, Peking University First Hospital, Beijing, China.,Key Laboratory of Renal Disease, Ministry of Health of China, Beijing, China.,Research Units of Diagnosis and Treatment of Immune-Mediated Kidney Diseases, Chinese Academy of Medical Sciences, Beijing, China
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6
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Complement Decay-Accelerating Factor is a modulator of influenza A virus lung immunopathology. PLoS Pathog 2021; 17:e1009381. [PMID: 34197564 PMCID: PMC8248730 DOI: 10.1371/journal.ppat.1009381] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 05/26/2021] [Indexed: 12/13/2022] Open
Abstract
Clearance of viral infections, such as SARS-CoV-2 and influenza A virus (IAV), must be fine-tuned to eliminate the pathogen without causing immunopathology. As such, an aggressive initial innate immune response favors the host in contrast to a detrimental prolonged inflammation. The complement pathway bridges innate and adaptive immune system and contributes to the response by directly clearing pathogens or infected cells, as well as recruiting proinflammatory immune cells and regulating inflammation. However, the impact of modulating complement activation in viral infections is still unclear. In this work, we targeted the complement decay-accelerating factor (DAF/CD55), a surface protein that protects cells from non-specific complement attack, and analyzed its role in IAV infections. We found that DAF modulates IAV infection in vivo, via an interplay with the antigenic viral proteins hemagglutinin (HA) and neuraminidase (NA), in a strain specific manner. Our results reveal that, contrary to what could be expected, DAF potentiates complement activation, increasing the recruitment of neutrophils, monocytes and T cells. We also show that viral NA acts on the heavily sialylated DAF and propose that the NA-dependent DAF removal of sialic acids exacerbates complement activation, leading to lung immunopathology. Remarkably, this mechanism has no impact on viral loads, but rather on the host resilience to infection, and may have direct implications in zoonotic influenza transmissions. Exacerbated complement activation and immune deregulation are at the basis of several pathologies induced by respiratory viruses. Here, we report that complement decay-accelerating factor (DAF), which inhibits complement activation in healthy cells, increases disease severity upon influenza A virus (IAV) infection. Remarkably, DAF interaction with IAV proteins, hemagglutinin (HA) and neuraminidase (NA), resulted in excessive complement activation and recruitment of innate and adaptive immune cells, without affecting viral loads. Furthermore, we observed that viral NA directly cleaves DAF and promotes complement activation, providing a possible link between IAV-DAF interaction and pathology. Therefore, our results unveil a novel pathway that could modulate disease severity, which may help to understand the increased pathogenicity of zoonotic and pandemic IAV infections.
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Shou Y, Yang L, Yang Y, Zhu X, Li F, Xu J. Determination of hypoxia signature to predict prognosis and the tumor immune microenvironment in melanoma. Mol Omics 2021; 17:307-316. [PMID: 33624645 DOI: 10.1039/d0mo00159g] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Melanoma is one of the highly malignant skin tumors, the incidence and death of which continue to increase. The hypoxic microenvironment drives tumor growth, progression, and heterogeneity; it also triggers a cascade of immunosuppressive responses and affects the levels of T cells, macrophages, and natural killer cells. Here, we aim to develop a hypoxia-based gene signature for prognosis evaluation and help evaluate the status of hypoxia and the immune microenvironment in melanoma. Based on the data from The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) database, we performed integrated bioinformatics to analyze the hypoxia-related genes. Using Lasso Cox regression, a hypoxia model was constructed. The receiver operating characteristic and the Kaplan-Meier curve were used to evaluate the predictive capacity of the model. With the CIBERSORT algorithm, the abundance of 22 immune cells in the melanoma microenvironment was analyzed. A total of 20 hypoxia-related genes were significantly related to prognosis in the log-rank test. Lasso regression showed that FBP1, SDC3, FOXO3, IGFBP1, S100A4, EGFR, ISG20, CP, PPARGC1A, KIF5A, and DPYSL4 displayed the best features. Based on these genes, a hypoxia model was established, and the area under the curve for the model was 0.734. Furthermore, the hypoxia score was identified as an independent prognostic factor. Besides, the hypoxia score could also predict the immune microenvironment in melanoma. Down-regulated activated CD4 memory T cells, CD8 T cells, and M1-like macrophages, and up-regulated Tregs were observed in patients with a high hypoxia score. The hypoxia-related genes were identified, and the hypoxia score was found to be a prognostic factor for overall survival and a predictor for the immune microenvironment. Our findings provide new ideas for evaluation and require further validation in clinical practice.
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Affiliation(s)
- Yanhong Shou
- Department of Dermatology, Huashan Hospital, Fudan University, 12 Wulumuqi Zhong Road, Shanghai, P. R. China.
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8
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Lin WC, Fessler MB. Regulatory mechanisms of neutrophil migration from the circulation to the airspace. Cell Mol Life Sci 2021; 78:4095-4124. [PMID: 33544156 PMCID: PMC7863617 DOI: 10.1007/s00018-021-03768-z] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 12/22/2020] [Accepted: 01/16/2021] [Indexed: 02/07/2023]
Abstract
The neutrophil, a short-lived effector leukocyte of the innate immune system best known for its proteases and other degradative cargo, has unique, reciprocal physiological interactions with the lung. During health, large numbers of ‘marginated’ neutrophils reside within the pulmonary vasculature, where they patrol the endothelial surface for pathogens and complete their life cycle. Upon respiratory infection, rapid and sustained recruitment of neutrophils through the endothelial barrier, across the extravascular pulmonary interstitium, and again through the respiratory epithelium into the airspace lumen, is required for pathogen killing. Overexuberant neutrophil trafficking to the lung, however, causes bystander tissue injury and underlies several acute and chronic lung diseases. Due in part to the unique architecture of the lung’s capillary network, the neutrophil follows a microanatomic passage into the distal airspace unlike that observed in other end-organs that it infiltrates. Several of the regulatory mechanisms underlying the stepwise recruitment of circulating neutrophils to the infected lung have been defined over the past few decades; however, fundamental questions remain. In this article, we provide an updated review and perspective on emerging roles for the neutrophil in lung biology, on the molecular mechanisms that control the trafficking of neutrophils to the lung, and on past and ongoing efforts to design therapeutics to intervene upon pulmonary neutrophilia in lung disease.
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Affiliation(s)
- Wan-Chi Lin
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, NIH, 111 T.W. Alexander Drive, P.O. Box 12233, MD D2-01, Research Triangle Park, NC, 27709, USA
| | - Michael B Fessler
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, NIH, 111 T.W. Alexander Drive, P.O. Box 12233, MD D2-01, Research Triangle Park, NC, 27709, USA.
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Yang YY, Lin CJ, Wang CC, Chen CM, Kao WJ, Chen YH. Consecutive Hypoxia Decreases Expression of NOTCH3, HEY1, CC10, and FOXJ1 via NKX2-1 Downregulation and Intermittent Hypoxia-Reoxygenation Increases Expression of BMP4, NOTCH1, MKI67, OCT4, and MUC5AC via HIF1A Upregulation in Human Bronchial Epithelial Cells. Front Cell Dev Biol 2020; 8:572276. [PMID: 33015064 PMCID: PMC7500169 DOI: 10.3389/fcell.2020.572276] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Accepted: 08/17/2020] [Indexed: 01/11/2023] Open
Abstract
Previous studies have shown that the experimental models of hypoxia-reoxygenation (H/R) mimics the physiological conditions of ischemia-reperfusion and induce oxidative stress and injury in various types of organs, tissues, and cells, both in vivo and in vitro, including human lung adenocarcinoma epithelial cells. Nonetheless, it had not been reported whether H/R affected proliferation, apoptosis, and expression of stem/progenitor cell markers in the bronchial epithelial cells. In this study, we investigated differential effects of consecutive hypoxia and intermittent 24/24-h cycles of H/R on human bronchial epithelial (HBE) cells derived from the same-race and age-matched healthy subjects (i.e., NHBE) and subjects with chronic obstructive pulmonary disease (COPD) (i.e., DHBE). To analyze gene/protein expression during differentiation, both the NHBE and DHBE cells at the 2nd passage were cultured at the air-liquid interface (ALI) in the differentiation medium under normoxia for 3 days, followed by either culturing under hypoxia (1% O2) for consecutively 9 days and then returning to normoxia for another 9 days, or culturing under 24/24-h cycles of H/R (i.e., 24 h of 1% O2 followed by 24 h of 21% O2, repetitively) for 18 days in total, so that all differentiating HBE cells were exposed to hypoxia for a total of 9 days. In both the normal and diseased HBE cells, intermittent H/R significantly increased HIF1A, BMP4, NOTCH1, MKI67, OCT4, and MUC5AC expression, while consecutive hypoxia significantly decreased NKX2-1, NOTCH3, HEY1, CC10, and FOXJ1 expression. Inhibition of HIF1A or NKX2-1 expression by siRNA transfection respectively decreased BMP4/NOTCH1/MKI67/OCT4/MUC5AC and NOTCH3/HEY1/CC10/FOXJ1 expression in the HBE cells cultured under intermittent H/R to the same levels under normoxia. Overexpression of NKX2-1 via cDNA transfection caused more than 2.8-fold increases in NOTCH3, HEY1, and FOXJ1 mRNA levels in the HBE cells cultured under consecutive hypoxia compared to the levels under normoxia. Taken together, our results show for the first time that consecutive hypoxia decreased expression of the co-regulated gene module NOTCH3/HEY1/CC10 and the ciliogenesis-inducing transcription factor gene FOXJ1 via NKX2-1 mRNA downregulation, while intermittent H/R increased expression of the co-regulated gene module BMP4/NOTCH1/MKI67/OCT4 and the predominant airway mucin gene MUC5AC via HIF1A mRNA upregulation.
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Affiliation(s)
- Yung-Yu Yang
- Department of General Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Chao-Ju Lin
- Graduate Institute of Aerospace and Undersea Medicine, National Defense Medical Center, Taipei, Taiwan
| | - Cheng-Chin Wang
- Graduate Institute of Aerospace and Undersea Medicine, National Defense Medical Center, Taipei, Taiwan.,Section of Respiratory Therapy, Rueifang Miner Hospital, New Taipei City, Taiwan
| | - Chieh-Min Chen
- Graduate Institute of Microbiology and Immunology, National Defense Medical Center, Taipei, Taiwan
| | - Wen-Jen Kao
- Graduate Institute of Aerospace and Undersea Medicine, National Defense Medical Center, Taipei, Taiwan
| | - Yi-Hui Chen
- Graduate Institute of Aerospace and Undersea Medicine, National Defense Medical Center, Taipei, Taiwan
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Cowman SJ, Fuja DG, Liu XD, Tidwell RSS, Kandula N, Sirohi D, Agarwal AM, Emerson LL, Tripp SR, Mohlman JS, Stonhill M, Garcia G, Conley CJ, Olalde AA, Sargis T, Ramirez-Torres A, Karam JA, Wood CG, Sircar K, Tamboli P, Boucher K, Maughan B, Spike BT, Ho TH, Agarwal N, Jonasch E, Koh MY. Macrophage HIF-1α Is an Independent Prognostic Indicator in Kidney Cancer. Clin Cancer Res 2020; 26:4970-4982. [PMID: 32586940 DOI: 10.1158/1078-0432.ccr-19-3890] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 04/20/2020] [Accepted: 06/22/2020] [Indexed: 12/11/2022]
Abstract
PURPOSE Clear cell renal cell carcinoma (ccRCC) is frequently associated with inactivation of the von Hippel-Lindau tumor suppressor, resulting in activation of HIF-1α and HIF-2α. The current paradigm, established using mechanistic cell-based studies, supports a tumor promoting role for HIF-2α, and a tumor suppressor role for HIF-1α. However, few studies have comprehensively examined the clinical relevance of this paradigm. Furthermore, the hypoxia-associated factor (HAF), which regulates the HIFs, has not been comprehensively evaluated in ccRCC. EXPERIMENTAL DESIGN To assess the involvement of HAF/HIFs in ccRCC, we analyzed their relationship to tumor grade/stage/outcome using tissue from 380 patients, and validated these associations using tissue from 72 additional patients and a further 57 patients treated with antiangiogenic therapy for associations with response. Further characterization was performed using single-cell mRNA sequencing (scRNA-seq), RNA-in situ hybridization (RNA-ISH), and IHC. RESULTS HIF-1α was primarily expressed in tumor-associated macrophages (TAMs), whereas HIF-2α and HAF were expressed primarily in tumor cells. TAM-associated HIF-1α was significantly associated with high tumor grade and increased metastasis and was independently associated with decreased overall survival. Furthermore, elevated TAM HIF-1α was significantly associated with resistance to antiangiogenic therapy. In contrast, high HAF or HIF-2α were associated with low grade, decreased metastasis, and increased overall survival. scRNA-seq, RNA-ISH, and Western blotting confirmed the expression of HIF-1α in M2-polarized CD163-expressing TAMs. CONCLUSIONS These findings highlight a potential role of TAM HIF-1α in ccRCC progression and support the reevaluation of HIF-1α as a therapeutic target and marker of disease progression.
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Affiliation(s)
| | | | - Xian-De Liu
- U.T. M.D. Anderson Cancer Center, Houston, Texas
| | | | | | | | | | - Lyska L Emerson
- Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah
| | - Sheryl R Tripp
- ARUP Institute for Clinical and Experimental Pathology, Salt Lake City, Utah
| | | | | | - Guillermina Garcia
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, California
| | | | - Adam A Olalde
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, California
| | - Timothy Sargis
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, California
| | | | - Jose A Karam
- U.T. M.D. Anderson Cancer Center, Houston, Texas
| | | | | | | | - Kenneth Boucher
- Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah
| | - Benjamin Maughan
- Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah
| | - Benjamin T Spike
- Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah
| | | | - Neeraj Agarwal
- Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah
| | - Eric Jonasch
- U.T. M.D. Anderson Cancer Center, Houston, Texas
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11
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Khan MA, Shamma T, Kazmi S, Altuhami A, Ahmed HA, Assiri AM, Broering DC. Hypoxia-induced complement dysregulation is associated with microvascular impairments in mouse tracheal transplants. J Transl Med 2020; 18:147. [PMID: 32234039 PMCID: PMC7110829 DOI: 10.1186/s12967-020-02305-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 03/16/2020] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Complement Regulatory Proteins (CRPs), especially CD55 primarily negate complement factor 3-mediated injuries and maintain tissue homeostasis during complement cascade activation. Complement activation and regulation during alloimmune inflammation contribute to allograft injury and therefore we proposed to investigate a crucial pathological link between vascular expression of CD55, active-C3, T cell immunity and associated microvascular tissue injuries during allograft rejection. METHODS Balb/c→C57BL/6 allografts were examined for microvascular deposition of CD55, C3d, T cells, and associated tissue microvascular impairments during rejection in mouse orthotopic tracheal transplantation. RESULTS Our findings demonstrated that hypoxia-induced early activation of HIF-1α favors a cell-mediated inflammation (CD4+, CD8+, and associated proinflammatory cytokines, IL-2 and TNF-α), which proportionally triggers the downregulation of CRP-CD55, and thereby augments the uncontrolled release of active-C3, and Caspase-3 deposition on CD31+ graft vascular endothelial cells. These molecular changes are pathologically associated with microvascular deterioration (low tissue O2 and Blood flow) and subsequent airway epithelial injuries of rejecting allografts as compared to non-rejecting syngrafts. CONCLUSION Together, these findings establish a pathological correlation between complement dysregulation, T cell immunity, and microvascular associated injuries during alloimmune inflammation in transplantation.
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Affiliation(s)
- Mohammad Afzal Khan
- Organ Transplant Research Section, Comparative Medicine Department, King Faisal Specialist Hospital and Research Centre, Riyadh, Kingdom of Saudi Arabia.
| | - Talal Shamma
- Organ Transplant Research Section, Comparative Medicine Department, King Faisal Specialist Hospital and Research Centre, Riyadh, Kingdom of Saudi Arabia
| | - Shadab Kazmi
- Organ Transplant Research Section, Comparative Medicine Department, King Faisal Specialist Hospital and Research Centre, Riyadh, Kingdom of Saudi Arabia
| | - Abdullah Altuhami
- Organ Transplant Research Section, Comparative Medicine Department, King Faisal Specialist Hospital and Research Centre, Riyadh, Kingdom of Saudi Arabia
| | - Hala Abdalrahman Ahmed
- Comparative Medicine Department, King Faisal Specialist Hospital and Research Centre, Riyadh, Kingdom of Saudi Arabia
| | - Abdullah Mohammed Assiri
- Comparative Medicine Department, King Faisal Specialist Hospital and Research Centre, Riyadh, Kingdom of Saudi Arabia.,College of Medicine, Alfaisal University, Riyadh, Kingdom of Saudi Arabia.,Institute for Research and Medical Consultations, Imam Abdulrahman Bin Faisal University, Dammam, Kingdom of Saudi Arabia
| | - Dieter Clemens Broering
- Organ Transplant Research Section, Comparative Medicine Department, King Faisal Specialist Hospital and Research Centre, Riyadh, Kingdom of Saudi Arabia
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12
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Kulkarni HS, Elvington ML, Perng YC, Liszewski MK, Byers DE, Farkouh C, Yusen RD, Lenschow DJ, Brody SL, Atkinson JP. Intracellular C3 Protects Human Airway Epithelial Cells from Stress-associated Cell Death. Am J Respir Cell Mol Biol 2019; 60:144-157. [PMID: 30156437 DOI: 10.1165/rcmb.2017-0405oc] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
The complement system provides host defense against pathogens and environmental stress. C3, the central component of complement, is present in the blood and increases in BAL fluid after injury. We recently discovered that C3 is taken up by certain cell types and cleaved intracellularly to C3a and C3b. C3a is required for CD4+ T-cell survival. These observations made us question whether complement operates at environmental interfaces, particularly in the respiratory tract. We found that airway epithelial cells (AECs, represented by both primary human tracheobronchial cells and BEAS-2B [cell line]) cultured in C3-free media were unique from other cell types in that they contained large intracellular stores of de novo synthesized C3. A fraction of this protein reduced ("storage form") but the remainder did not, consistent with it being pro-C3 ("precursor form"). These two forms of intracellular C3 were absent in CRISPR knockout-induced C3-deficient AECs and decreased with the use of C3 siRNA, indicating endogenous generation. Proinflammatory cytokine exposure increased both stored and secreted forms of C3. Furthermore, AECs took up C3 from exogenous sources, which mitigated stress-associated cell death (e.g., from oxidative stress or starvation). C3 stores were notably increased within AECs in lung tissues from individuals with different end-stage lung diseases. Thus, at-risk cells furnish C3 through biosynthesis and/or uptake to increase locally available C3 during inflammation, while intracellularly, these stores protect against certain inducers of cell death. These results establish the relevance of intracellular C3 to airway epithelial biology and suggest novel pathways for complement-mediated host protection in the airway.
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Affiliation(s)
- Hrishikesh S Kulkarni
- 1 Division of Pulmonary and Critical Care Medicine, and.,2 Division of Rheumatology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Michelle L Elvington
- 2 Division of Rheumatology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Yi-Chieh Perng
- 2 Division of Rheumatology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - M Kathryn Liszewski
- 2 Division of Rheumatology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Derek E Byers
- 1 Division of Pulmonary and Critical Care Medicine, and
| | - Christopher Farkouh
- 2 Division of Rheumatology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Roger D Yusen
- 1 Division of Pulmonary and Critical Care Medicine, and
| | - Deborah J Lenschow
- 2 Division of Rheumatology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
| | | | - John P Atkinson
- 2 Division of Rheumatology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
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13
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Agashe VV, Jankowska-Gan E, Keller M, Sullivan JA, Haynes LD, Kernien JF, Torrealba JR, Roenneburg D, Dart M, Colonna M, Wilkes DS, Burlingham WJ. Leukocyte-Associated Ig-like Receptor 1 Inhibits T h1 Responses but Is Required for Natural and Induced Monocyte-Dependent T h17 Responses. THE JOURNAL OF IMMUNOLOGY 2018; 201:772-781. [PMID: 29884698 DOI: 10.4049/jimmunol.1701753] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 05/15/2018] [Indexed: 11/19/2022]
Abstract
Leukocyte-associated Ig-like receptor 1 (LAIR1) is an ITIM-bearing collagen receptor expressed by leukocytes and is implicated in immune suppression. However, using a divalent soluble LAIR1/Fc recombinant protein to block interaction of cell surface LAIR1 with matrix collagen, we found that whereas Th1 responses were enhanced as predicted, Th17 responses were strongly inhibited. Indeed, LAIR1 on both T cells and monocytes was required for optimal Th17 responses to collagen type (Col)V. For pre-existing "natural" Th17 response to ColV, the LAIR1 requirement was absolute, whereas adaptive Th17 and Th1/17 immune responses in both mice and humans were profoundly reduced in the absence of LAIR1. Furthermore, the addition of C1q, a natural LAIR1 ligand, decreased Th1 responses in a dose-dependent manner, but it had no effect on Th17 responses. In IL-17-dependent murine organ transplant models of chronic rejection, LAIR1+/+ but not LAIR1-/- littermates mounted strong fibroproliferative responses. Surface LAIR1 expression was higher on human Th17 cells as compared with Th1 cells, ruling out a receptor deficiency that could account for the differences. We conclude that LAIR1 ligation by its natural ligands favors Th17 cell development, allowing for preferential activity of these cells in collagen-rich environments. The emergence of cryptic self-antigens such as the LAIR1 ligand ColV during ischemia/reperfusion injury and early acute rejection, as well as the tendency of macrophages/monocytes to accumulate in the allograft during chronic rejection, favors Th17 over Th1 development, posing a risk to long-term graft survival.
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Affiliation(s)
- Vrushali V Agashe
- Division of Transplantation, Department of Surgery, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI 53792.,Comparative Biomedical Sciences Graduate Program, University of Wisconsin-Madison, Madison, WI 53706
| | - Ewa Jankowska-Gan
- Division of Transplantation, Department of Surgery, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI 53792
| | | | - Jeremy A Sullivan
- Division of Transplantation, Department of Surgery, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI 53792
| | - Lynn D Haynes
- Division of Transplantation, Department of Surgery, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI 53792
| | - John F Kernien
- Department of Medicine, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI 53706
| | - Jose R Torrealba
- Division of Renal Pathology, Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX 75390
| | - Drew Roenneburg
- Division of Transplantation, Department of Surgery, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI 53792
| | | | - Marco Colonna
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110; and
| | - David S Wilkes
- University of Virginia School of Medicine, Charlottesville, VA 22908
| | - William J Burlingham
- Division of Transplantation, Department of Surgery, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI 53792;
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14
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Kulkarni HS, Liszewski MK, Brody SL, Atkinson JP. The complement system in the airway epithelium: An overlooked host defense mechanism and therapeutic target? J Allergy Clin Immunol 2018; 141:1582-1586.e1. [PMID: 29339260 DOI: 10.1016/j.jaci.2017.11.046] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 11/02/2017] [Accepted: 11/13/2017] [Indexed: 12/13/2022]
Affiliation(s)
- Hrishikesh S Kulkarni
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Washington University in St Louis, St Louis, Mo; Division of Rheumatology, Department of Medicine, Washington University in St Louis, St Louis, Mo
| | - M Kathryn Liszewski
- Division of Rheumatology, Department of Medicine, Washington University in St Louis, St Louis, Mo
| | - Steven L Brody
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Washington University in St Louis, St Louis, Mo
| | - John P Atkinson
- Division of Rheumatology, Department of Medicine, Washington University in St Louis, St Louis, Mo.
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