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Huang KCY, Chiang SF, Chang HY, Hong WZ, Chen JY, Lee PC, Liang JA, Ke TW, Peng SL, Shiau AC, Chen TW, Yang PC, Chen WTL, Chao KSC. Colorectal cancer-specific IFNβ delivery overcomes dysfunctional dsRNA-mediated type I interferon signaling to increase the abscopal effect of radiotherapy. J Immunother Cancer 2024; 12:e008515. [PMID: 38749537 PMCID: PMC11097864 DOI: 10.1136/jitc-2023-008515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/19/2024] [Indexed: 05/18/2024] Open
Abstract
BACKGROUND Cancer-intrinsic type I interferon (IFN-I) production triggered by radiotherapy (RT) is mainly dependent on cytosolic double-stranded DNA (dsDNA)-mediated cGAS/STING signaling and increases cancer immunogenicity and enhances the antitumor immune response to increase therapeutic efficacy. However, cGAS/STING deficiency in colorectal cancer (CRC) may suppress the RT-induced antitumor immunity. Therefore, we aimed to evaluate the importance of the dsRNA-mediated antitumor immune response induced by RT in patients with CRC. METHODS Cytosolic dsRNA level and its sensors were evaluated via cell-based assays (co-culture assay, confocal microscopy, pharmacological inhibition and immunofluorescent staining) and in vivo experiments. Biopsies and surgical tissues from patients with CRC who received preoperative chemoradiotherapy (neoCRT) were collected for multiplex cytokine assays, immunohistochemical analysis and SNP genotyping. We also generated a cancer-specific adenovirus-associated virus (AAV)-IFNβ1 construct to evaluate its therapeutic efficacy in combination with RT, and the immune profiles were analyzed by flow cytometry and RNA-seq. RESULTS Our studies revealed that RT stimulates the autonomous release of dsRNA from cancer cells to activate TLR3-mediated IFN-I signatures to facilitate antitumor immune responses. Patients harboring a dysfunctional TLR3 variant had reduced serum levels of IFN-I-related cytokines and intratumoral CD8+ immune cells and shorter disease-free survival following neoCRT treatment. The engineered cancer-targeted construct AAV-IFNβ1 significantly improved the response to RT, leading to systematic eradication of distant tumors and prolonged survival in defective TLR3 preclinical models. CONCLUSION Our results support that increasing cancer-intrinsic IFNβ1 expression is an immunotherapeutic strategy that enhances the RT-induced antitumor immune response in locally patients with advanced CRC with dysfunctional TLR3.
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Affiliation(s)
- Kevin Chih-Yang Huang
- Department of Biomedical Imaging and Radiological Science, China Medical University, Taichung, Taiwan
- Translation Research Core, China Medical University Hospital, Taichung, Taiwan
- Cancer Biology and Precision Therapeutics Center, China Medical University, Taichung, Taiwan
| | - Shu-Fen Chiang
- Lab of Precision Medicine, Feng-Yuan Hospital Ministry of Health and Welfare, Taichung, Taiwan
| | - Hsin-Yu Chang
- Translation Research Core, China Medical University Hospital, Taichung, Taiwan
- Proton Cancer, China Medical University Hospital, Taichung, Taiwan
| | - Wei-Ze Hong
- Proton Cancer, China Medical University Hospital, Taichung, Taiwan
| | - Jhen-Yu Chen
- Department of Biomedical Imaging and Radiological Science, China Medical University, Taichung, Taiwan
- Translation Research Core, China Medical University Hospital, Taichung, Taiwan
- Proton Cancer, China Medical University Hospital, Taichung, Taiwan
| | - Pei-Chih Lee
- Cancer Biology and Precision Therapeutics Center, China Medical University, Taichung, Taiwan
- Graduate Institute of Biomedical Science, China Medical University, Taichung, Taiwan
| | - Ji-An Liang
- Department of Radiation Oncology, China Medical University Hospital, Taichung, Taiwan
- School of Medicine, China Medical University, Taichung, Taiwan
| | - Tao-Wei Ke
- Department of Colorectal Cancer, China Medical University Hospital, Taichung, Taiwan
- School of Chinese Medicine, China Medical University, Taichung, Taiwan
| | - Shin-Lei Peng
- Department of Biomedical Imaging and Radiological Science, China Medical University, Taichung, Taiwan
| | - An-Cheng Shiau
- Department of Biomedical Imaging and Radiological Science, China Medical University, Taichung, Taiwan
- Proton Cancer, China Medical University Hospital, Taichung, Taiwan
- Department of Radiation Oncology, China Medical University Hospital, Taichung, Taiwan
| | - Tsung-Wei Chen
- Department of Pathology, Asia University, Taichung, Taiwan
| | - Pei-Chen Yang
- Proton Cancer, China Medical University Hospital, Taichung, Taiwan
| | - William Tzu-Liang Chen
- School of Medicine, China Medical University, Taichung, Taiwan
- Department of Colorectal Cancer, China Medical University Hospital, Taichung, Taiwan
- Department of Colorectal Surgery, China Medical University HsinChu Hospital, China Medical University Hospital, HsinChu, Taiwan
| | - K S Clifford Chao
- Proton Cancer, China Medical University Hospital, Taichung, Taiwan
- Department of Radiation Oncology, China Medical University Hospital, Taichung, Taiwan
- School of Medicine, China Medical University, Taichung, Taiwan
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Xiao Y, Fang H, Zhu Y, Zhou J, Dai Z, Wang H, Xia Z, Tu Z, Leong KW. Multifunctional Cationic Hyperbranched Polyaminoglycosides that Target Multiple Mediators for Severe Abdominal Trauma Management. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2305273. [PMID: 37997512 PMCID: PMC10767409 DOI: 10.1002/advs.202305273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 09/12/2023] [Indexed: 11/25/2023]
Abstract
Trauma and its associated complications, including dysregulated inflammatory responses, severe infection, and disseminated intravascular coagulation (DIC), continue to pose lethal threats worldwide. Following injury, cell-free nucleic acids (cfNAs), categorized as damage-associated molecular patterns (DAMPs), are released from dying or dead cells, triggering local and systemic inflammatory responses and coagulation abnormalities that worsen disease progression. Harnessing cfNA scavenging strategies with biomaterials has emerged as a promising approach for treating posttrauma systemic inflammation. In this study, the effectiveness of cationic hyperbranched polyaminoglycosides derived from tobramycin (HPT) and disulfide-included HPT (ss-HPT) in scavenging cfNAs to mitigate posttrauma inflammation and hypercoagulation is investigated. Both cationic polymers demonstrate the ability to suppress DAMP-induced toll-like receptor (TLR) activation, inflammatory cytokine secretion, and hypercoagulation by efficiently scavenging cfNAs. Additionally, HPT and ss-HPT exhibit potent antibacterial efficacy attributed to the presence of tobramycin in their chemical composition. Furthermore, HPT and ss-HPT exhibit favorable modulatory effects on inflammation and therapeutic outcomes in a cecal ligation puncture (CLP) mouse abdominal trauma model. Notably, in vivo studies reveal that ss-HPT displayed high accumulation and retention in injured organs of traumatized mice while maintaining a higher biodegradation rate in healthy mice, contrasting with findings for HPT. Thus, functionalized ss-HPT, a bioreducible polyaminoglycoside, holds promise as an effective option to enhance therapeutic outcomes for trauma patients by alleviating posttrauma inflammation and coagulation complications.
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Affiliation(s)
- Yongqiang Xiao
- Department of Burn Surgerythe First Affiliated HospitalNaval Medical UniversityShanghai200433P. R. China
- Department of Biomedical EngineeringColumbia UniversityNew YorkNY10027USA
- ENT InstituteDepartment of Facial Plastic and Reconstructive SurgeryEye & ENT HospitalFudan UniversityShanghai200031P. R. China
| | - He Fang
- Department of Burn Surgerythe First Affiliated HospitalNaval Medical UniversityShanghai200433P. R. China
| | - Yuefei Zhu
- Department of Biomedical EngineeringColumbia UniversityNew YorkNY10027USA
| | - Jie Zhou
- Department of Breast SurgeryAffiliated Cancer Hospital and InstituteGuangzhou Medical UniversityGuangzhou510095P. R. China
| | - Zhanzhan Dai
- Department of Burn Surgerythe First Affiliated HospitalNaval Medical UniversityShanghai200433P. R. China
| | - Hongxia Wang
- Department of Biomedical EngineeringColumbia UniversityNew YorkNY10027USA
| | - Zhaofan Xia
- Department of Burn Surgerythe First Affiliated HospitalNaval Medical UniversityShanghai200433P. R. China
| | - Zhaoxu Tu
- Department of Biomedical EngineeringColumbia UniversityNew YorkNY10027USA
- The Sixth Affiliated HospitalSun Yat‐sen UniversityGuangzhouGuangdong510655P. R. China
| | - Kam W. Leong
- Department of Biomedical EngineeringColumbia UniversityNew YorkNY10027USA
- Department of Systems BiologyColumbia University Medical CenterNew YorkNY10032USA
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Suresh MV, Aktay S, Yalamanchili G, Solanki S, Sathyarajan DT, Arnipalli MS, Pennathur S, Raghavendran K. Role of succinate in airway epithelial cell regulation following traumatic lung injury. JCI Insight 2023; 8:e166860. [PMID: 37737265 PMCID: PMC10561732 DOI: 10.1172/jci.insight.166860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 08/17/2023] [Indexed: 09/23/2023] Open
Abstract
Lung contusion and gastric aspiration (LC and GA) are major risk factors for developing acute respiratory distress following trauma. Hypoxia from lung injury is mainly regulated by hypoxia-inducible factor 1α (HIF-1α). Published data from our group indicate that HIF-1α regulation in airway epithelial cells (AEC) drives the acute inflammatory response following LC and GA. Metabolomic profiling and metabolic flux of Type II AEC following LC revealed marked increases in glycolytic and TCA intermediates in vivo and in vitro that were HIF-1α dependent. GLUT-1/4 expression was also increased in HIF-1α+/+ mice, suggesting that increased glucose entry may contribute to increased intermediates. Importantly, lactate incubation in vitro on Type II cells did not significantly increase the inflammatory byproduct IL-1β. Contrastingly, succinate had a direct proinflammatory effect on human small AEC by IL-1β generation in vitro. This effect was reversed by dimethylmalonate, suggesting an important role for succinate dehydrogenase in mediating HIF-1α effects. We confirmed the presence of the only known receptor for succinate binding, SUCNR1, on Type II AEC. These results support the hypothesis that succinate drives HIF-1α-mediated airway inflammation following LC. This is the first report to our knowledge of direct proinflammatory activation of succinate in nonimmune cells such as Type II AEC in direct lung injury models.
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Zhang X, Gao R, Zhang C, Teng Y, Chen H, Li Q, Liu C, Wu J, Wei L, Deng L, Wu L, Ye-Lehmann S, Mao X, Liu J, Zhu T, Chen C. Extracellular RNAs-TLR3 signaling contributes to cognitive impairment after chronic neuropathic pain in mice. Signal Transduct Target Ther 2023; 8:292. [PMID: 37544956 PMCID: PMC10404588 DOI: 10.1038/s41392-023-01543-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 06/01/2023] [Accepted: 06/12/2023] [Indexed: 08/08/2023] Open
Abstract
Chronic pain is often associated with cognitive decline, which could influence the quality of the patient's life. Recent studies have suggested that Toll-like receptor 3 (TLR3) is crucial for memory and learning. Nonetheless, the contribution of TLR3 to the pathogenesis of cognitive decline after chronic pain remains unclear. The level of TLR3 in hippocampal neurons increased in the chronic constriction injury (CCI) group than in the sham group in this study. Importantly, compared to the wild-type (WT) mice, TLR3 knockout (KO) mice and TLR3-specific neuronal knockdown mice both displayed improved cognitive function, reduced levels of inflammatory cytokines and neuronal apoptosis and attenuated injury to hippocampal neuroplasticity. Notably, extracellular RNAs (exRNAs), specifically double-stranded RNAs (dsRNAs), were increased in the sciatic nerve, serum, and hippocampus after CCI. The co-localization of dsRNA with TLR3 was also increased in hippocampal neurons. And the administration of poly (I:C), a dsRNA analog, elevated the levels of dsRNAs and TLR3 in the hippocampus, exacerbating hippocampus-dependent memory. In additon, the dsRNA/TLR3 inhibitor improved cognitive function after CCI. Together, our findings suggested that exRNAs, particularly dsRNAs, that were present in the condition of chronic neuropathic pain, activated TLR3, initiated downstream inflammatory and apoptotic signaling, caused damage to synaptic plasticity, and contributed to the etiology of cognitive impairment after chronic neuropathic pain.
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Affiliation(s)
- Xueying Zhang
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China
- The Research Units of West China (2018RU012)-Chinese Academy of Medical Sciences, West China Hospital, Sichuan University, Chengdu, China
| | - Rui Gao
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China
- The Research Units of West China (2018RU012)-Chinese Academy of Medical Sciences, West China Hospital, Sichuan University, Chengdu, China
| | - Changteng Zhang
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China
- The Research Units of West China (2018RU012)-Chinese Academy of Medical Sciences, West China Hospital, Sichuan University, Chengdu, China
| | - Yi Teng
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China
- The Research Units of West China (2018RU012)-Chinese Academy of Medical Sciences, West China Hospital, Sichuan University, Chengdu, China
| | - Hai Chen
- Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, West China Hospital, Sichuan University, Chengdu, China
| | - Qi Li
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China
- The Research Units of West China (2018RU012)-Chinese Academy of Medical Sciences, West China Hospital, Sichuan University, Chengdu, China
| | - Changliang Liu
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China
- The Research Units of West China (2018RU012)-Chinese Academy of Medical Sciences, West China Hospital, Sichuan University, Chengdu, China
| | - Jiahui Wu
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China
- The Research Units of West China (2018RU012)-Chinese Academy of Medical Sciences, West China Hospital, Sichuan University, Chengdu, China
| | - Liuxing Wei
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China
- The Research Units of West China (2018RU012)-Chinese Academy of Medical Sciences, West China Hospital, Sichuan University, Chengdu, China
| | - Liyun Deng
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China
- The Research Units of West China (2018RU012)-Chinese Academy of Medical Sciences, West China Hospital, Sichuan University, Chengdu, China
| | - Lining Wu
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China
- The Research Units of West China (2018RU012)-Chinese Academy of Medical Sciences, West China Hospital, Sichuan University, Chengdu, China
| | - Shixin Ye-Lehmann
- Diseases and Hormones of the Nervous System, University of Paris-Scalay Bicêtre Hosptial, Le Kremlin-Bicêtre, France
| | - Xiaobo Mao
- Department of Neurology, Institute of Cell Engineering, School of Medicine, Johns Hopkins University, Baltimore, USA
| | - Jin Liu
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China
- The Research Units of West China (2018RU012)-Chinese Academy of Medical Sciences, West China Hospital, Sichuan University, Chengdu, China
| | - Tao Zhu
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China.
- The Research Units of West China (2018RU012)-Chinese Academy of Medical Sciences, West China Hospital, Sichuan University, Chengdu, China.
| | - Chan Chen
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China.
- The Research Units of West China (2018RU012)-Chinese Academy of Medical Sciences, West China Hospital, Sichuan University, Chengdu, China.
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Lei YQ, Wan YT, Liang GT, Huang YH, Dong P, Luo SD, Zhang WJ, Liu WF, Liu KX, Zhang XY. Extracellular RNAs/TLR3 signaling contributes to acute intestinal injury induced by intestinal ischemia reperfusion in mice. Biochim Biophys Acta Mol Basis Dis 2023:166790. [PMID: 37336369 DOI: 10.1016/j.bbadis.2023.166790] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 05/29/2023] [Accepted: 06/13/2023] [Indexed: 06/21/2023]
Abstract
Toll-like receptor 3 (TLR3), one pattern recognition receptor activated by viral and endogenous RNA, has been recently reported to regulate ischemia/reperfusion (I/R) injury in various organs. However, the role of TLR3 in the development of intestinal I/R injury remains unclear. The aim of this study is to evaluate the effects of extracellular RNAs/TLR3 signaling in intestinal I/R injury. An intestinal I/R injury model was established with superior mesenteric artery occlusion both in wild-type and TLR3 knockout (KO, -/-) mice, and MODE-K cells were subjected to hypoxia/reoxygenation (H/R) to mimic the I/R model in vivo. Extracellular RNAs (exRNAs), especially double-stranded RNAs (dsRNAs) co-localized with TLR3, were significantly increased both in vitro and in vivo. Compared with wild-type mice, TLR3 knockout obviously attenuated intestinal I/R injury. Both TLR3/dsRNA complex inhibitor and TLR3 siRNA administration reduced TLR3 expressions and subsequently inhibited intestinal inflammatory cytokine production and apoptosis. In conclusion, exRNAs/TLR3 signaling is a key mechanism that regulates intestinal I/R injury in adult mice, and the TLR3/dsRNA complex inhibitor can be an effective approach for attenuating intestinal I/R-induced inflammatory response and apoptosis.
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Affiliation(s)
- Yu-Qiong Lei
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Yan-Tong Wan
- Guangdong Provincial Key Laboratory of Proteomics, School of Basic Medical Sciences, China
| | - Guang-Tao Liang
- College of Anesthesiology, Southern Medical University, Guangzhou, Guangdong, China
| | - Yu-Hao Huang
- College of Anesthesiology, Southern Medical University, Guangzhou, Guangdong, China
| | - Peng Dong
- College of Anesthesiology, Southern Medical University, Guangzhou, Guangdong, China
| | - Si-Dan Luo
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Wen-Juan Zhang
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Wei-Feng Liu
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Ke-Xuan Liu
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
| | - Xi-Yang Zhang
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
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Suresh A, Rao TC, Solanki S, Suresh MV, Menon B, Raghavendran K. The holy basil administration diminishes the NF-kB expression and protects alveolar epithelial cells from pneumonia infection through interferon gamma. Phytother Res 2022; 36:1822-1835. [PMID: 35233841 PMCID: PMC9018535 DOI: 10.1002/ptr.7428] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 01/31/2022] [Accepted: 02/01/2022] [Indexed: 11/07/2022]
Abstract
Bacterial pneumonia is one of the most important causes of mortality in the United States. The bacteria Klebsiella pneumoniae (KP) accounts for a significant proportion of community and hospital-acquired infections. Here, we determine that the holy basil (Ocimum sanctum) extract improves cell viability and dampens the proinflammatory cytokine response in an in vitro model of pneumonia. For this, A549, a human alveolar basal epithelial cell line, was subjected to a lethal KP model following a 24-hr pretreatment with basil extract. Bacteremia, cell viability, apoptosis, MTT assay, phagocytic capacity, cytokines, and Khe gene expression were assessed in these cells following pneumonia. Cell morphology analysis showed that holy basil protected A549 cells from KP infection-mediated effects by inhibiting cell death due to apoptosis. Additionally, in the presence of basil, A549 cells demonstrated significantly higher bactericidal capacity and phagocytosis. Administration of holy basil led to reduced expression of hypoxia-inducible factor-1/2a, nuclear factor kappa B, and Khe in the KP-infected cells while increasing interferon (IFN)-γ expression. Our results suggest that basil significantly reduced cell death in the setting of KP infection, likely via attenuation of cytokine and IFN-γ mediated signaling pathways. Holy basil is a promising therapeutic agent for managing and treating bacterial pneumonia based on its potency.
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Affiliation(s)
- Arundhathy Suresh
- Department of Surgery, University of Michigan, Ann Arbor, Michigan, USA
| | - Tejeshwar C Rao
- Department of Cell, Developmental, and Integrative Biology, The University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Sumeet Solanki
- Department of Surgery, University of Michigan, Ann Arbor, Michigan, USA
| | | | - Bindu Menon
- Department of Medical Education and Physiology/Pharmacology, University of Toledo, Toledo, Ohio, USA
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7
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Suresh MV, Yalamanchili G, Rao TC, Aktay S, Kralovich A, Shah YM, Raghavendran K. Hypoxia‐inducible factor (HIF)‐1α‐induced regulation of lung injury in pulmonary aspiration is mediated through NF‐kB. FASEB Bioadv 2022; 4:309-328. [PMID: 35520392 PMCID: PMC9065579 DOI: 10.1096/fba.2021-00132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 12/22/2021] [Accepted: 12/27/2021] [Indexed: 11/11/2022] Open
Abstract
Aspiration‐induced lung injury is a common grievance encountered in the intensive care unit (ICU). It is a significant risk factor for improving ventilator‐associated pneumonia (VAP) and acute respiratory distress syndrome (ARDS). Hypoxia‐inducible factor (HIF)‐1α is one of the primary transcription factors responsible for regulating the cellular response to changes in oxygen tension. Here, we sought to determine the role of HIF‐1α and specifically the role of type 2 alveolar epithelial cells in generating the acute inflammatory response following acid and particles (CASP) aspiration. Previous studies show HIF‐1 α is involved in regulating the hypoxia‐stimulated expression of MCP‐1 in mice and humans. The CASP was induced in C57BL/6, ODD‐Luc, HIF‐1α (+/+) control, and HIF‐1α conditional knockout (HIF‐1α (−/−) mice). Following an injury in ODD mice, explanted organs were subjected to IVIS imaging to measure the degree of hypoxia. HIF‐1α expression, BAL albumin, cytokines, and histology were measured following CASP. In C57BL/6 mice, the level of HIF‐1α was increased at 1 h after CASP. There were significantly increased levels of albumin and cytokines in C57BL/6 and ODD‐Luc mice lungs following CASP. HIF‐1α (+/+) mice given CASP demonstrated a synergistic increase in albumin leakage, increased pro‐inflammatory cytokines, and worse injury. MCP‐1 antibody neutralized HIF‐1α (+/+) mice showed reduced granuloma formation. The NF‐κB expression was increased substantially in the HIF‐1α (+/+) mice following CASP compared to HIF‐1α (−/−) mice. Our data collectively identify that HIF‐1α upregulation of the acute inflammatory response depends on NF‐κB following CASP.
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Affiliation(s)
| | | | - Tejeshwar C. Rao
- Department of Cell, Developmental, and Integrative Biology The University of Alabama at Birmingham Birmingham UK
| | - Sinan Aktay
- Department of Surgery University of Michigan Ann Arbor Michigan USA
| | - Alex Kralovich
- Department of Surgery University of Michigan Ann Arbor Michigan USA
| | - Yatrik M. Shah
- Molecular & Integrative Physiology University of Michigan Ann Arbor Michigan USA
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Nassar A, Ibrahim IM, Amin FG, Magdy M, Elgharib AM, Azzam EB, Nasser F, Yousry K, Shamkh IM, Mahdy SM, Elfiky AA. A Review of Human Coronaviruses' Receptors: The Host-Cell Targets for the Crown Bearing Viruses. Molecules 2021; 26:6455. [PMID: 34770863 PMCID: PMC8587140 DOI: 10.3390/molecules26216455] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 10/20/2021] [Accepted: 10/22/2021] [Indexed: 12/19/2022] Open
Abstract
A novel human coronavirus prompted considerable worry at the end of the year 2019. Now, it represents a significant global health and economic burden. The newly emerged coronavirus disease caused by the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) is the primary reason for the COVID-19 global pandemic. According to recent global figures, COVID-19 has caused approximately 243.3 million illnesses and 4.9 million deaths. Several human cell receptors are involved in the virus identification of the host cells and entering them. Hence, understanding how the virus binds to host-cell receptors is crucial for developing antiviral treatments and vaccines. The current work aimed to determine the multiple host-cell receptors that bind with SARS-CoV-2 and other human coronaviruses for the purpose of cell entry. Extensive research is needed using neutralizing antibodies, natural chemicals, and therapeutic peptides to target those host-cell receptors in extremely susceptible individuals. More research is needed to map SARS-CoV-2 cell entry pathways in order to identify potential viral inhibitors.
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Affiliation(s)
- Aaya Nassar
- Biophysics Department, Faculty of Science, Cairo University, Giza 12511, Egypt; (I.M.I.); (F.G.A.); (M.M.); (A.M.E.)
| | - Ibrahim M. Ibrahim
- Biophysics Department, Faculty of Science, Cairo University, Giza 12511, Egypt; (I.M.I.); (F.G.A.); (M.M.); (A.M.E.)
| | - Fatma G. Amin
- Biophysics Department, Faculty of Science, Cairo University, Giza 12511, Egypt; (I.M.I.); (F.G.A.); (M.M.); (A.M.E.)
- Physics Department, Faculty of Science, Alexandria University, Alexandria 21519, Egypt
| | - Merna Magdy
- Biophysics Department, Faculty of Science, Cairo University, Giza 12511, Egypt; (I.M.I.); (F.G.A.); (M.M.); (A.M.E.)
| | - Ahmed M. Elgharib
- Biophysics Department, Faculty of Science, Cairo University, Giza 12511, Egypt; (I.M.I.); (F.G.A.); (M.M.); (A.M.E.)
| | - Eman B. Azzam
- Physics Department, Medical Biophysics Division, Faculty of Science, Helwan University, Cairo 11511, Egypt;
| | - Filopateer Nasser
- Biochemistry Department, Faculty of Science, Cairo University, Giza 12511, Egypt;
| | - Kirllos Yousry
- Faculty of Medicine, Cairo University, Cairo 11511, Egypt;
| | | | - Samah M. Mahdy
- National Museum of Egyptian Civilization, Ain Elsira-Elfustat, Cairo 11511, Egypt;
| | - Abdo A. Elfiky
- Biophysics Department, Faculty of Science, Cairo University, Giza 12511, Egypt; (I.M.I.); (F.G.A.); (M.M.); (A.M.E.)
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Opoku-Temeng C, Malachowa N, Kobayashi SD, DeLeo FR. Innate Host Defense against Klebsiella pneumoniae and the Outlook for Development of Immunotherapies. J Innate Immun 2021; 14:167-181. [PMID: 34628410 DOI: 10.1159/000518679] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 07/14/2021] [Indexed: 11/19/2022] Open
Abstract
Klebsiella pneumoniae (K. pneumoniae) is a Gram-negative commensal bacterium and opportunistic pathogen. In healthy individuals, the innate immune system is adept at protecting against K. pneumoniae infection. Notably, the serum complement system and phagocytic leukocytes (e.g., neutrophils) are highly effective at eliminating K. pneumoniae and thereby preventing severe disease. On the other hand, the microbe is a major cause of healthcare-associated infections, especially in individuals with underlying susceptibility factors, such as pre-existing severe illness or immune suppression. The burden of K. pneumoniae infections in hospitals is compounded by antibiotic resistance. Treatment of these infections is often difficult largely because the microbes are usually resistant to multiple antibiotics (multidrug resistant [MDR]). There are a limited number of treatment options for these infections and new therapies, and preventative measures are needed. Here, we review host defense against K. pneumoniae and discuss recent therapeutic measures and vaccine approaches directed to treat and prevent severe disease caused by MDR K. pneumoniae.
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Affiliation(s)
- Clement Opoku-Temeng
- Laboratory of Bacteriology, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana, USA
| | - Natalia Malachowa
- Laboratory of Bacteriology, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana, USA
| | - Scott D Kobayashi
- Laboratory of Bacteriology, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana, USA
| | - Frank R DeLeo
- Laboratory of Bacteriology, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana, USA
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Zheng K, He FB, Liu H, He Q. Genetic variations of toll-like receptors: Impact on susceptibility, severity and prognosis of bacterial meningitis. INFECTION GENETICS AND EVOLUTION 2021; 93:104984. [PMID: 34214672 DOI: 10.1016/j.meegid.2021.104984] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 06/24/2021] [Accepted: 06/27/2021] [Indexed: 01/24/2023]
Abstract
Bacterial meningitis (BM) is a serious infectious disease of the central nervous system,which is mainly caused by Streptococcus pneumoniae, Neisseria meningitidis, Haemophilus influenzae, Group B Streptococcus and Listeria monocytogenes. Throughout the world, BM has become one of the most lethal diseases that commonly occurs in children. Toll like receptors (TLRs) are one of the most important immune defense lines in infectious diseases, and play an essential role in host defense. Accumulating evidence shows that genetic variations in TLRs are associated with host responses in BM. This review aims to summarize the role of different TLRs and their genetic variations in the susceptibility, severity and prognosis of BM and discuss the identified risk factors for better treatment and improvement of the course and outcome of BM.
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Affiliation(s)
- Kai Zheng
- Department of Medical Microbiology, Capital Medical University, Beijing 100069, China; Department of Neurorehabilitation, Wuxi Tongren Rehabilitation Hospital, Wuxi 214151, Jiangsu, China
| | - Felix B He
- Institute of Biomedicine, University of Turku, 20520 Turku, Finland
| | - Hongshan Liu
- Department of Medical Microbiology, Capital Medical University, Beijing 100069, China
| | - Qiushui He
- Department of Medical Microbiology, Capital Medical University, Beijing 100069, China; Institute of Biomedicine, University of Turku, 20520 Turku, Finland.
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11
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Mielcarska MB, Bossowska-Nowicka M, Toka FN. Cell Surface Expression of Endosomal Toll-Like Receptors-A Necessity or a Superfluous Duplication? Front Immunol 2021; 11:620972. [PMID: 33597952 PMCID: PMC7882679 DOI: 10.3389/fimmu.2020.620972] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Accepted: 12/11/2020] [Indexed: 12/28/2022] Open
Abstract
Timely and precise delivery of the endosomal Toll-like receptors (TLRs) to the ligand recognition site is a critical event in mounting an effective antimicrobial immune response, however, the same TLRs should maintain the delicate balance of avoiding recognition of self-nucleic acids. Such sensing is widely known to start from endosomal compartments, but recently enough evidence has accumulated supporting the idea that TLR-mediated signaling pathways originating in the cell membrane may be engaged in various cells due to differential expression and distribution of the endosomal TLRs. Therefore, the presence of endosomal TLRs on the cell surface could benefit the host responses in certain cell types and/or organs. Although not fully understood why, TLR3, TLR7, and TLR9 may occur both in the cell membrane and intracellularly, and it seems that activation of the immune response can be initiated concurrently from these two sites in the cell. Furthermore, various forms of endosomal TLRs may be transported to the cell membrane, indicating that this may be a normal process orchestrated by cysteine proteases-cathepsins. Among the endosomal TLRs, TLR3 belongs to the evolutionary distinct group and engages a different protein adapter in the signaling cascade. The differently glycosylated forms of TLR3 are transported by UNC93B1 to the cell membrane, unlike TLR7, TLR8, and TLR9. The aim of this review is to reconcile various views on the cell surface positioning of endosomal TLRs and add perspective to the implication of such receptor localization on their function, with special attention to TLR3. Cell membrane-localized TLR3, TLR7, and TLR9 may contribute to endosomal TLR-mediated inflammatory signaling pathways. Dissecting this signaling axis may serve to better understand mechanisms influencing endosomal TLR-mediated inflammation, thus determine whether it is a necessity for immune response or simply a circumstantial superfluous duplication, with other consequences on immune response.
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Affiliation(s)
- Matylda Barbara Mielcarska
- Division of Immunology, Institute of Veterinary Medicine, Department of Preclinical Sciences, Warsaw University of Life Sciences, Warsaw, Poland
| | - Magdalena Bossowska-Nowicka
- Division of Immunology, Institute of Veterinary Medicine, Department of Preclinical Sciences, Warsaw University of Life Sciences, Warsaw, Poland
| | - Felix Ngosa Toka
- Division of Immunology, Institute of Veterinary Medicine, Department of Preclinical Sciences, Warsaw University of Life Sciences, Warsaw, Poland.,Center for Integrative Mammalian Research, Department of Biomedical Sciences, Ross University School of Veterinary Medicine, Basseterre, Saint Kitts and Nevis
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12
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Gadanec LK, McSweeney KR, Qaradakhi T, Ali B, Zulli A, Apostolopoulos V. Can SARS-CoV-2 Virus Use Multiple Receptors to Enter Host Cells? Int J Mol Sci 2021; 22:992. [PMID: 33498183 PMCID: PMC7863934 DOI: 10.3390/ijms22030992] [Citation(s) in RCA: 95] [Impact Index Per Article: 31.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 01/18/2021] [Accepted: 01/18/2021] [Indexed: 12/12/2022] Open
Abstract
The occurrence of the novel severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), responsible for coronavirus disease 2019 (COVD-19), represents a catastrophic threat to global health. Protruding from the viral surface is a densely glycosylated spike (S) protein, which engages angiotensin-converting enzyme 2 (ACE2) to mediate host cell entry. However, studies have reported viral susceptibility in intra- and extrapulmonary immune and non-immune cells lacking ACE2, suggesting that the S protein may exploit additional receptors for infection. Studies have demonstrated interactions between S protein and innate immune system, including C-lectin type receptors (CLR), toll-like receptors (TLR) and neuropilin-1 (NRP1), and the non-immune receptor glucose regulated protein 78 (GRP78). Recognition of carbohydrate moieties clustered on the surface of the S protein may drive receptor-dependent internalization, accentuate severe immunopathological inflammation, and allow for systemic spread of infection, independent of ACE2. Furthermore, targeting TLRs, CLRs, and other receptors (Ezrin and dipeptidyl peptidase-4) that do not directly engage SARS-CoV-2 S protein, but may contribute to augmented anti-viral immunity and viral clearance, may represent therapeutic targets against COVID-19.
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13
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Jiang Y, Zhu F, Wu GS, Wang KA, Wang C, Yu Q, Zhu BH, Sun Y, Xia ZF. Microarray and bioinformatics analysis of circular RNAs expression profile in traumatic lung injury. Exp Ther Med 2020; 20:227-234. [PMID: 32509009 PMCID: PMC7271735 DOI: 10.3892/etm.2020.8686] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Accepted: 01/02/2020] [Indexed: 12/12/2022] Open
Abstract
Acute lung injury (ALI) and respiratory distress syndrome are common, potentially lethal injuries that predominantly occur following chest trauma. Circular RNAs (circRNAs) are stable conserved non-coding RNAs that are widely expressed in different organs. To the best of our knowledge, no previous studies have shown whether circRNAs are involved in traumatic lung injury (TLI). The aim of the present study was to identify highly expressed circRNAs in plasma samples from patients with TLI and explore their potential functions in the pathogenesis of TLI. A high-throughput circRNA microarray was used to investigate the expression profile of circRNAs in plasma samples from five patients with TLI and paired control samples. Subsequently, a total of five abnormally expressed circRNAs were investigated using reverse transcription-quantitative PCR (RT-qPCR). A bioinformatics analysis was performed to predict a competitive endogenous RNA (ceRNA) network. In addition, gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses were used to identify the main biological processes and pathways. Finally, additional samples were tested to identify the expression profiles of the selected circRNAs. Among the 310 circRNAs that were highly expressed in the microarray analysis, 60 were upregulated and 250 were downregulated in patients with TLI. RT-qPCR results indicated that two downregulated circRNAs (circ_102927 and circ_100562) and one upregulated circRNA (circ_101523) matched the microarray results. The bioinformatics analysis constructed a targeting network based on the three validated circRNAs. GO and KEGG analyses identified the top ten enriched annotations. The expression of homo sapiens circular RNA 102927 (hsa_circRNA_102927) in the plasma of patients with TLI was 0.34-fold compared with the control group in expanded size validation. The results of the present study identified the differentially expressed circRNAs in the plasma of patients with TLI and provided evidence that highly expressed circRNAs involved in the ceRNA network may serve a role in the pathophysiology of TLI.
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Affiliation(s)
- Yong Jiang
- Department of Burn Surgery, Changhai Hospital, Navy Medical University, Shanghai 200433, P.R. China
| | - Feng Zhu
- Department of Burn Surgery, Changhai Hospital, Navy Medical University, Shanghai 200433, P.R. China
| | - Guo-Sheng Wu
- Department of Burn Surgery, Changhai Hospital, Navy Medical University, Shanghai 200433, P.R. China
| | - Kang-An Wang
- Department of Burn Surgery, Changhai Hospital, Navy Medical University, Shanghai 200433, P.R. China
| | - Chen Wang
- Department of Burn Surgery, Changhai Hospital, Navy Medical University, Shanghai 200433, P.R. China
| | - Qing Yu
- Department of Burn Surgery, Changhai Hospital, Navy Medical University, Shanghai 200433, P.R. China
| | - Bang-Hui Zhu
- Department of Burn Surgery, Changhai Hospital, Navy Medical University, Shanghai 200433, P.R. China
| | - Yu Sun
- Department of Burn Surgery, Changhai Hospital, Navy Medical University, Shanghai 200433, P.R. China
| | - Zhao-Fan Xia
- Department of Burn Surgery, Changhai Hospital, Navy Medical University, Shanghai 200433, P.R. China
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14
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Suresh MV, Dolgachev VA, Zhang B, Balijepalli S, Swamy S, Mooliyil J, Kralovich G, Thomas B, Machado-Aranda D, Karmakar M, Lalwani S, Subramanian A, Anantharam A, Moore BB, Raghavendran K. TLR3 absence confers increased survival with improved macrophage activity against pneumonia. JCI Insight 2019; 4:131195. [PMID: 31801911 DOI: 10.1172/jci.insight.131195] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Accepted: 10/17/2019] [Indexed: 12/14/2022] Open
Abstract
Toll-like receptor 3 (TLR3) is a pathogen recognition molecule associated with viral infection with double-stranded RNA (dsRNA) as its ligand. We evaluated the role of TLR3 in bacterial pneumonia using Klebsiella pneumoniae (KP). WT and TLR3-/- mice were subjected to a lethal model of KP. Alveolar macrophage polarization, bactericidal activity, and phagocytic capacity were compared. RNA-sequencing was performed on alveolar macrophages from the WT and TLR3-/- mice. Adoptive transfers of alveolar macrophages from TLR3-/- mice to WT mice with KP were evaluated for survival. Expression of TLR3 in postmortem human lung samples from patients who died from gram-negative pneumonia and pathological grading of pneumonitis was determined. Mortality was significantly lower in TLR3-/-, and survival improved in WT mice following antibody neutralization of TLR3 and with TLR3/dsRNA complex inhibitor. Alveolar macrophages from TLR3-/- mice demonstrated increased bactericidal and phagocytic capacity. RNA-sequencing showed an increased production of chemokines in TLR3-/- mice. Adoptive transfer of alveolar macrophages from the TLR3-/- mice restored the survival in WT mice. Human lung samples demonstrated a good correlation between the grade of pneumonitis and TLR3 expression. These data represent a paradigm shift in understanding the mechanistic role of TLR3 in bacterial pneumonia.
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Affiliation(s)
| | | | - Boya Zhang
- Department of Surgery, University of Michigan, Ann Arbor, Michigan, USA
| | | | - Samantha Swamy
- Department of Surgery, University of Michigan, Ann Arbor, Michigan, USA
| | - Jashitha Mooliyil
- Department of Surgery, University of Michigan, Ann Arbor, Michigan, USA
| | - Georgia Kralovich
- Department of Surgery, University of Michigan, Ann Arbor, Michigan, USA
| | - Bivin Thomas
- Department of Surgery, University of Michigan, Ann Arbor, Michigan, USA
| | | | - Monita Karmakar
- Department of Surgery, University of Michigan, Ann Arbor, Michigan, USA
| | - Sanjeev Lalwani
- Department of Laboratory Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Arulselvi Subramanian
- Department of Laboratory Medicine, All India Institute of Medical Sciences, New Delhi, India
| | | | - Bethany B Moore
- Department of Medicine, University of Michigan, Ann Arbor, Michigan, USA
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15
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Suresh MV, Balijepalli S, Zhang B, Singh VV, Swamy S, Panicker S, Dolgachev VA, Subramanian C, Ramakrishnan SK, Thomas B, Rao TC, Delano MJ, Machado-Aranda D, Shah YM, Raghavendran K. Hypoxia-Inducible Factor (HIF)-1α Promotes Inflammation and Injury Following Aspiration-Induced Lung Injury in Mice. Shock 2019; 52:612-621. [PMID: 30601332 PMCID: PMC6591116 DOI: 10.1097/shk.0000000000001312] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Acid aspiration-induced lung injury is a common disease in the intensive care unit (ICU) and acute respiratory distress syndrome (ARDS). Hypoxia-inducible factor (HIF)-1α is a major transcription factor responsible for regulating the cellular response to changes in oxygen tension. A clear understanding of the function of HIF-1α in lung inflammatory response is currently lacking. Here, we sought to determine the role of HIF-1α in type 2 alveolar epithelial cells (AEC) in the generation of the acute inflammatory response following gastric aspiration (GA). GA led to profound hypoxia at very early time points following GA. This correlated to a robust increase in HIF-1α, tissue albumin and pro-inflammatory mediators following GA in AECs. The extent of lung injury and the release of pro/anti-inflammatory cytokines were significantly reduced in HIF-1α (-/-) mice. Finally, we report that HIF-1α upregulation of the acute inflammatory response is dependent on NF-κB following GA.
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Affiliation(s)
| | | | - Boya Zhang
- Department of Surgery, University of Michigan, Ann Arbor
| | | | - Samantha Swamy
- Department of Surgery, University of Michigan, Ann Arbor
| | | | | | | | | | - Bivin Thomas
- Department of Surgery, University of Michigan, Ann Arbor
| | - Tejeshwar C. Rao
- Department of Cell, Development and Integrative Biology, University of Alabama at Birmingham, Birmingham
| | | | | | - Yatrik M. Shah
- Molecular & Integrative Physiology, University of Michigan, Ann Arbor
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16
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Grunig G, Durmus N. An RNA Sensor Protects against Pulmonary Hypertension. Am J Respir Crit Care Med 2019; 199:138-140. [PMID: 30252495 DOI: 10.1164/rccm.201807-1363ed] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Gabriele Grunig
- 1 Department of Environmental Medicine and.,2 Department of Medicine New York University Langone Medical Center New York, New York
| | - Nedim Durmus
- 2 Department of Medicine New York University Langone Medical Center New York, New York
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17
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Ohadian Moghadam S, Nowroozi MR. Toll‐like receptors: The role in bladder cancer development, progression and immunotherapy. Scand J Immunol 2019; 90:e12818. [DOI: 10.1111/sji.12818] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 08/16/2019] [Accepted: 08/20/2019] [Indexed: 12/18/2022]
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18
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Zhang B, Swamy S, Balijepalli S, Panicker S, Mooliyil J, Sherman MA, Parkkinen J, Raghavendran K, Suresh MV. Direct pulmonary delivery of solubilized curcumin reduces severity of lethal pneumonia. FASEB J 2019; 33:13294-13309. [PMID: 31530014 DOI: 10.1096/fj.201901047rr] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Acute respiratory distress syndrome (ARDS), the most severe form of acute lung injury, is associated with reduced lung compliance and hypoxemia. Curcumin exhibits potent anti-inflammatory properties but has poor solubility and rapid plasma clearance. To overcome these physiochemical limitations and uncover the full therapeutic potential of curcumin in lung inflammation, in this study we utilized a novel water-soluble curcumin formulation (CDC) and delivered it directly into the lungs of C57BL/6 mice inoculated with a lethal dose of Klebsiella pneumoniae (KP). Administration of CDC led to a significant reduction in mortality, in bacterial presence within blood and lungs, as well as in lung injury, inflammation, and oxidative stress. The expression of Klebsiella hemolysin gene; TNF-α; IFN-β; nucleotide-binding domain, leucine-rich-containing family, pyrin domain-containing-3; hypoxia-inducible factor 1/2α; and NF-κB were also decreased following CDC treatment, suggesting modulation of the inflammasome complex and hypoxia signaling pathways as an underlying mechanism by which CDC reduces the severity of pneumonia. On a cellular level, CDC led to diminished cell death, improved viability, and protection of human lung epithelial cells in vitro. Overall, our studies demonstrate that CDC administration improves cell survival and reduces injury, inflammation, and mortality in a murine model of lethal gram-negative pneumonia. CDC, therefore, has promising anti-inflammatory potential in pneumonia and likely other inflammatory lung diseases, demonstrating the importance of optimizing the physicochemical properties of active natural products to optimize their clinical application.-Zhang, B., Swamy, S., Balijepalli, S., Panicker, S., Mooliyil, J., Sherman, M. A., Parkkinen, J., Raghavendran, K., Suresh, M. V. Direct pulmonary delivery of solubilized curcumin reduces severity of lethal pneumonia.
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Affiliation(s)
- Boya Zhang
- Department of Surgery, University of Michigan, Ann Arbor, Michigan, USA
| | - Samantha Swamy
- Department of Surgery, University of Michigan, Ann Arbor, Michigan, USA
| | | | - Sreehari Panicker
- Department of Surgery, University of Michigan, Ann Arbor, Michigan, USA
| | - Jashitha Mooliyil
- Department of Surgery, University of Michigan, Ann Arbor, Michigan, USA
| | - Matthew A Sherman
- Department of Pediatrics, Children's National Medical Center, Washington, DC, USA
| | - Jaakko Parkkinen
- Institute of Biomedicine, University of Helsinki, Helsinki, Finland
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19
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Chen C, Gao R, Li M, Wang Q, Chen H, Zhang S, Mao X, Behensky A, Zhang Z, Gan L, Li T, Liao R, Li Q, Yu H, Yang J, Zhu T, Liu J. Extracellular RNAs-TLR3 signaling contributes to cognitive decline in a mouse model of postoperative cognitive dysfunction. Brain Behav Immun 2019; 80:439-451. [PMID: 30980952 DOI: 10.1016/j.bbi.2019.04.024] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2019] [Revised: 03/23/2019] [Accepted: 04/09/2019] [Indexed: 01/28/2023] Open
Abstract
Postoperative cognitive dysfunction (POCD) is considered a severe complication after surgery among elderly patients. Toll-like receptor 3 (TLR3) has recently been reported to play an important role in hippocampus-dependent working memory. However, the role of TLR3 in the development of POCD remains unclear. In the current study, we hypothesized that increased extracellular RNAs (exRNAs) during anesthesia and surgical operation, especially double stranded RNAs (dsRNAs), would activate TLR3 signaling pathways and mediate POCD. Using a mouse model of POCD, 20-22 months wild-type (WT) mice were undergoing unilateral nephrectomy and increased TLR3 expression levels and co-localization with neuronal and microglial cells were found in the surgery group compared with the sham group. Compared with WT mice, TLR3 knockout (KO, -/-) mice had improved hippocampus-dependent memory and attenuated production of inflammatory cytokines and apoptosis. Increased exRNAs and/or co-localization with TLR3 were found in both in vitro and in vivo models. Of note, TLR3/dsRNA complex inhibitor administration reduced hippocampal dsRNA level and TLR3 expression, attenuated hippocampal inflammatory cytokines production and apoptosis, and thus improved hippocampus-dependent memory. Our results indicate that exRNAs, especially dsRNAs, present under stressful conditions may trigger TLR3 activation and initiate the downstream inflammatory and apoptotic signaling, and play a substantial role in the development of POCD.
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Affiliation(s)
- Chan Chen
- Department of Anesthesiology and Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China
| | - Rui Gao
- Department of Anesthesiology and Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China
| | - Ming Li
- Department of Anesthesiology and Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China
| | - Qiao Wang
- Department of Anesthesiology and Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China
| | - Hai Chen
- Department of Anesthesiology and Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China
| | - Shu Zhang
- Department of Emergency Medicine, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China
| | - Xiaobo Mao
- Institute of Cell Engineering, Department of Neurology, School of Medicine, Johns Hopkins University, Baltimore, MD 21205, USA
| | - Adam Behensky
- Institute of Cell Engineering, Department of Neurology, School of Medicine, Johns Hopkins University, Baltimore, MD 21205, USA
| | - Zheng Zhang
- Department of Anesthesiology and Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China
| | - Lu Gan
- Department of Anesthesiology and Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China
| | - Tao Li
- Department of Anesthesiology and Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China
| | - Ren Liao
- Department of Anesthesiology and Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China
| | - Qian Li
- Department of Anesthesiology and Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China
| | - Hai Yu
- Department of Anesthesiology and Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China
| | - Jing Yang
- Department of Anesthesiology and Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China
| | - Tao Zhu
- Department of Anesthesiology and Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China.
| | - Jin Liu
- Department of Anesthesiology and Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China.
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20
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Hu X, Chen L, Li T, Zhao M. TLR3 is involved in paraquat-induced acute renal injury. Life Sci 2019; 223:102-109. [PMID: 30876938 DOI: 10.1016/j.lfs.2019.03.029] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 03/09/2019] [Accepted: 03/11/2019] [Indexed: 12/22/2022]
Abstract
AIMS To investigate the role of Toll-like receptor 3 (TLR3) in mouse paraquat-induced acute renal injury. MATERIALS AND METHODS Acute renal injury was established in C57BL/6J mice by intraperitoneal injection of paraquat (28 mg/kg). The mice were also injected intraperitoneally with TLR3 agonist poly I:C (20 mg/kg) or TLR3/dsRNA complex inhibitor (1 mg) 1 h before paraquat exposure. At 72 hour post paraquat exposure, the mice were sacrificed and the blood and renal tissues were collected to examine TLR3 expression in renal tissues, pathological injury in renal tissues, renal function, inflammation, and cell apoptosis. KEY FINDINGS After paraquat exposure, TLR3 expression in mouse renal tissues was significantly increased, and pathological changes to the renal tissues and remarkable renal impairment were present. Compared to the paraquat group, the poly I:C group showed no significant difference in renal pathology, renal function, inflammation, or cell apoptosis. However, TLR3 inhibitor treatment significantly alleviated injury to the renal tissues, improved renal function, inhibited NF-κB activation, suppressed the infiltration of neutrophils, and lessened the expression of IL-1β, TNF-α, and keratinocyte chemoattractant (KC) in renal tissues. TLR3 inhibitor treatment also suppressed the activation of caspase-8 and caspase-3 and reduced apoptosis in the renal tissues. SIGNIFICANCE Paraquat exposure significantly upregulates TLR3 expression in renal tissues, and activation of the TLR3 signaling pathway is an important contributor to paraquat nephrotoxicity. TLR3 activation exacerbates inflammation and cell apoptosis in renal tissues by activating NF-κB and caspase-8, thus promoting paraquat-induced acute renal injury.
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Affiliation(s)
- Xiao Hu
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Lianghong Chen
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Tiegang Li
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Min Zhao
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang 110004, China.
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21
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Dolgachev V, Panicker S, Balijepalli S, McCandless LK, Yin Y, Swamy S, Suresh MV, Delano MJ, Hemmila MR, Raghavendran K, Machado-Aranda D. Electroporation-mediated delivery of FER gene enhances innate immune response and improves survival in a murine model of pneumonia. Gene Ther 2018; 25:359-375. [PMID: 29907877 PMCID: PMC6195832 DOI: 10.1038/s41434-018-0022-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 05/02/2018] [Accepted: 05/11/2018] [Indexed: 12/23/2022]
Abstract
Previously, we reported that electroporation-mediated (EP) delivery of the FER gene improved survival in a combined trauma-pneumonia model. The mechanism of this protective effect is unknown. In this paper, we performed a pneumonia model in C57/BL6 mice with 500 CFU of Klebsiella pneumoniae. After inoculation, a plasmid encoding human FER was delivered by EP into the lung (PNA/pFER-EP). Survival of FER-treated vs. controls (PNA; PNA/EP-pcDNA) was recorded. In parallel cohorts, bronchial alveolar lavage (BAL) and lung were harvested at 24 and 72 h with markers of infection measured. FER-EP-treated animals reduced bacterial counts and had better 5-day survival compared to controls (80 vs. 20 vs. 25%; p < 0.05). Pre-treatment resulted in 100% survival. With FER, inflammatory monocytes were quickly recruited into BAL. These cells had increased surface expression for Toll-receptor 2 and 4, and increased phagocytic and myeloperoxidase activity at 24 h. Samples from FER electroporated animals had increased phosphorylation of STAT transcription factors, varied gene expression of IL1β, TNFα, Nrf2, Nlrp3, Cxcl2, HSP90 and increased cytokine production of TNF-α, CCL-2, KC, IFN-γ, and IL-1RA. In a follow-up experiment, using Methicillin-resistant Staphylococcus aureus (MRSA) similar bacterial reduction effects were obtained with FER gene delivery. We conclude that FER overexpression improves survival through STAT activation enhancing innate immunity and accelerating bacterial clearance in the lung. This constitutes a novel mechanism of inflammatory regulation with therapeutic potential in the setting of hospital-acquired pneumonia.
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Affiliation(s)
- Vladislav Dolgachev
- Division of Acute Care Surgery, University of Michigan, 1500 E Medical Center Dr, UH-1C421, SPC 5033, Ann Arbor, MI, 48109-5033, USA
| | - Sreehari Panicker
- Division of Acute Care Surgery, University of Michigan, 1500 E Medical Center Dr, UH-1C421, SPC 5033, Ann Arbor, MI, 48109-5033, USA
| | - Sanjay Balijepalli
- Division of Acute Care Surgery, University of Michigan, 1500 E Medical Center Dr, UH-1C421, SPC 5033, Ann Arbor, MI, 48109-5033, USA
| | - Lane Kelly McCandless
- Division of Acute Care Surgery, University of Michigan, 1500 E Medical Center Dr, UH-1C421, SPC 5033, Ann Arbor, MI, 48109-5033, USA
| | - Yue Yin
- Division of Acute Care Surgery, University of Michigan, 1500 E Medical Center Dr, UH-1C421, SPC 5033, Ann Arbor, MI, 48109-5033, USA
| | - Samantha Swamy
- Division of Acute Care Surgery, University of Michigan, 1500 E Medical Center Dr, UH-1C421, SPC 5033, Ann Arbor, MI, 48109-5033, USA
| | - M V Suresh
- Division of Acute Care Surgery, University of Michigan, 1500 E Medical Center Dr, UH-1C421, SPC 5033, Ann Arbor, MI, 48109-5033, USA
| | - Matthew J Delano
- Division of Acute Care Surgery, University of Michigan, 1500 E Medical Center Dr, UH-1C421, SPC 5033, Ann Arbor, MI, 48109-5033, USA
| | - Mark R Hemmila
- Division of Acute Care Surgery, University of Michigan, 1500 E Medical Center Dr, UH-1C421, SPC 5033, Ann Arbor, MI, 48109-5033, USA
| | - Krishnan Raghavendran
- Division of Acute Care Surgery, University of Michigan, 1500 E Medical Center Dr, UH-1C421, SPC 5033, Ann Arbor, MI, 48109-5033, USA
| | - David Machado-Aranda
- Division of Acute Care Surgery, University of Michigan, 1500 E Medical Center Dr, UH-1C421, SPC 5033, Ann Arbor, MI, 48109-5033, USA.
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22
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Machado-Aranda D. [The Use Of Pulmonary Gene Therapy In The Treatment Of Experimental Models Of Pneumonia And Septicemia]. GACETA MEDICA DE CARACAS 2018; 126:5-14. [PMID: 30100668 PMCID: PMC6086359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Affiliation(s)
- David Machado-Aranda
- Laboratorio del Estudio de la Biología y Terapia Molecular para el Manejo del Trauma Pulmonar
- División de Cirugía de Trauma, Quemados y Urgencias - Terapia Intensiva Quirúrgica, Universidad de Michigan, Ann Arbor, Michigan, Estados Unidos de América
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23
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Kooijman S, Brummelman J, van Els CACM, Marino F, Heck AJR, Mommen GPM, Metz B, Kersten GFA, Pennings JLA, Meiring HD. Novel identified aluminum hydroxide-induced pathways prove monocyte activation and pro-inflammatory preparedness. J Proteomics 2018; 175:144-155. [PMID: 29317357 DOI: 10.1016/j.jprot.2017.12.021] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Revised: 12/21/2017] [Accepted: 12/29/2017] [Indexed: 12/11/2022]
Abstract
Aluminum-based adjuvants are the most widely used adjuvants in human vaccines. A comprehensive understanding of the mechanism of action of aluminum adjuvants at the molecular level, however, is still elusive. Here, we unravel the effects of aluminum hydroxide Al(OH)3 by a systems-wide analysis of the Al(OH)3-induced monocyte response. Cell response analysis by cytokine release was combined with (targeted) transcriptome and full proteome analysis. Results from this comprehensive study revealed two novel pathways to become activated upon monocyte stimulation with Al(OH)3: the first pathway was IFNβ signaling possibly induced by DAMP sensing pathways like TLR or NOD1 activation, and second the HLA class I antigen processing and presentation pathway. Furthermore, known mechanisms of the adjuvant activity of Al(OH)3 were elucidated in more detail such as inflammasome and complement activation, homeostasis and HLA-class II upregulation, possibly related to increased IFNγ gene expression. Altogether, our study revealed which immunological pathways are activated upon stimulation of monocytes with Al(OH)3, refining our knowledge on the adjuvant effect of Al(OH)3 in primary monocytes. SIGNIFICANCE Aluminum salts are the most used adjuvants in human vaccines but a comprehensive understanding of the working mechanism of alum adjuvants at the molecular level is still elusive. Our Systems Vaccinology approach, combining complementary molecular biological, immunological and mass spectrometry-based techniques gave a detailed insight in the molecular mechanisms and pathways induced by Al(OH)3 in primary monocytes. Several novel immunological relevant cellular pathways were identified: type I interferon secretion potentially induced by TLR and/or NOD like signaling, the activation of the inflammasome and the HLA Class-I and Class-II antigen presenting pathways induced by IFNγ. This study highlights the mechanisms of the most commonly used adjuvant in human vaccines by combing proteomics, transcriptomics and cytokine analysis revealing new potential mechanisms of action for Al(OH)3.
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Affiliation(s)
- Sietske Kooijman
- Intravacc, Bilthoven, The Netherlands; Biomolecular Mass Spectrometry and Proteomics, Bijvoet Center for Biomolecular Research and Utrecht Institute for Pharmaceutical Sciences, Science Faculty, Utrecht University, The Netherlands
| | - Jolanda Brummelman
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, The Netherlands
| | - Cécile A C M van Els
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, The Netherlands
| | - Fabio Marino
- Biomolecular Mass Spectrometry and Proteomics, Bijvoet Center for Biomolecular Research and Utrecht Institute for Pharmaceutical Sciences, Science Faculty, Utrecht University, The Netherlands; Netherlands Proteomics Centre, Utrecht, The Netherlands
| | - Albert J R Heck
- Biomolecular Mass Spectrometry and Proteomics, Bijvoet Center for Biomolecular Research and Utrecht Institute for Pharmaceutical Sciences, Science Faculty, Utrecht University, The Netherlands; Netherlands Proteomics Centre, Utrecht, The Netherlands
| | | | | | - Gideon F A Kersten
- Intravacc, Bilthoven, The Netherlands; Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands
| | - Jeroen L A Pennings
- Centre for Health Protection, National Institute for Public Health and the Environment, Bilthoven, The Netherlands
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24
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Li XQ, Chen FS, Tan WF, Fang B, Zhang ZL, Ma H. Elevated microRNA-129-5p level ameliorates neuroinflammation and blood-spinal cord barrier damage after ischemia-reperfusion by inhibiting HMGB1 and the TLR3-cytokine pathway. J Neuroinflammation 2017; 14:205. [PMID: 29061187 PMCID: PMC5654055 DOI: 10.1186/s12974-017-0977-4] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Accepted: 10/03/2017] [Indexed: 02/06/2023] Open
Abstract
Background Ischemia-reperfusion (IR) affects microRNA (miR) expression and causes substantial inflammation. Multiple roles of the tumor suppressor miR-129-5p in cerebral IR have recently been reported, but its functions in the spinal cord are unclear. Here, we investigated the role of miR-129-5p after spinal cord IR, particularly in regulating high-mobility group box-1 (HMGB1) and the Toll-like receptor (TLR)-3 pathway. Methods Ischemia was induced via 5-min occlusion of the aortic arch. The relationship between miR-129-5p and HMGB1 was elucidated via RT-PCR, western blotting, and luciferase assays. The cellular distribution of HMGB1 was determined via double immunofluorescence. The effect of miR-129-5p on the expression of HMGB1, TLR3, and downstream cytokines was evaluated using synthetic miRs, rHMGB1, and the TLR3 agonist Poly(I:C). Blood-spinal cord barrier (BSCB) permeability was examined by measuring Evans blue (EB) dye extravasation and the water content. Results The temporal miR-129-5p and HMGB1 expression profiles and luciferase assay results indicated that miR-129-5p targeted HMGB1. Compared with the Sham group, the IR group had higher HMGB1 immunoreactivity, which was primarily distributed in neurons and microglia. Intrathecal injection of the miR-129-5p mimic significantly decreased the HMGB1, TLR3, interleukin (IL)-1β and tumor necrosis factor (TNF)-α levels and the double-labeled cell count 48 h post-surgery, whereas rHMGB1 and Poly(I:C) reversed these effects. Injection of miR-129-5p mimic preserved motor function and prevented BSCB leakage based on increased Basso Mouse Scale scores and decreased EB extravasation and water content, whereas injection rHMGB1 and Poly(I:C) aggravated these injuries. Conclusions Increasing miR-129-5p levels protect against IR by ameliorating inflammation-induced neuronal and BCSB damage by inhibiting HMGB1 and TLR3-associated cytokines.
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Affiliation(s)
- Xiao-Qian Li
- Department of Anesthesiology, First Affiliated Hospital, China Medical University, Shenyang, Liaoning, 110001, China
| | - Feng-Shou Chen
- Department of Anesthesiology, First Affiliated Hospital, China Medical University, Shenyang, Liaoning, 110001, China
| | - Wen-Fei Tan
- Department of Anesthesiology, First Affiliated Hospital, China Medical University, Shenyang, Liaoning, 110001, China
| | - Bo Fang
- Department of Anesthesiology, First Affiliated Hospital, China Medical University, Shenyang, Liaoning, 110001, China
| | - Zai-Li Zhang
- Department of Anesthesiology, First Affiliated Hospital, China Medical University, Shenyang, Liaoning, 110001, China
| | - Hong Ma
- Department of Anesthesiology, First Affiliated Hospital, China Medical University, Shenyang, Liaoning, 110001, China.
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