1
|
Li C, Wang J, Xu JF, Pi J, Zheng B. Roles of HIF-1α signaling in Mycobacterium tuberculosis infection: New targets for anti-TB therapeutics? Biochem Biophys Res Commun 2024; 711:149920. [PMID: 38615574 DOI: 10.1016/j.bbrc.2024.149920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 03/29/2024] [Accepted: 04/08/2024] [Indexed: 04/16/2024]
Abstract
Tuberculosis (TB), a deadly infectious disease induced by Mycobacterium tuberculosis (Mtb), continues to be a global public health issue that kill millions of patents every year. Despite significant efforts have been paid to identify effective TB treatments, the emergence of drug-resistant strains of the disease and the presence of comorbidities in TB patients urges us to explore the detailed mechanisms involved in TB immunity and develop more effective innovative anti-TB strategies. HIF-1α, a protein involved in regulating cellular immune responses during TB infection, has been highlighted as a promising target for the development of novel strategies for TB treatment due to its critical roles in anti-TB host immunity. This review provides a summary of current research progress on the roles of HIF-1α in TB infection, highlighting its importance in regulating the host immune response upon Mtb infection and summarizing the influences and mechanisms of HIF-1α on anti-TB immunological responses of host cells. This review also discusses the various challenges associated with developing HIF-1α as a target for anti-TB therapies, including ensuring specificity and avoiding off-target effects on normal cell function, determining the regulation and expression of HIF-1α in TB patients, and developing drugs that can inhibit HIF-1α. More deep understanding of the molecular mechanisms involved in HIF-1α signaling, its impact on TB host status, and systematic animal testing and clinical trials may benefit the optimization of HIF-1α as a novel therapeutic target for TB.
Collapse
Affiliation(s)
- Chaowei Li
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, The First Dongguan Affiliated Hospital, School of Medical Technology, Guangdong Medical University, Dongguan, Guangdong, China
| | - Jiajun Wang
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, The First Dongguan Affiliated Hospital, School of Medical Technology, Guangdong Medical University, Dongguan, Guangdong, China
| | - Jun-Fa Xu
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, The First Dongguan Affiliated Hospital, School of Medical Technology, Guangdong Medical University, Dongguan, Guangdong, China.
| | - Jiang Pi
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, The First Dongguan Affiliated Hospital, School of Medical Technology, Guangdong Medical University, Dongguan, Guangdong, China.
| | - Biying Zheng
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, The First Dongguan Affiliated Hospital, School of Medical Technology, Guangdong Medical University, Dongguan, Guangdong, China.
| |
Collapse
|
2
|
Ma H, Wang T, Wang J, Wang P, Shu Q, Qin R, Li S, Xu H. Formaldehyde exacerbates inflammation and biases T helper cell lineage commitment through IFN-γ/STAT1/T-bet pathway in asthma. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 280:116534. [PMID: 38823345 DOI: 10.1016/j.ecoenv.2024.116534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 05/15/2024] [Accepted: 05/30/2024] [Indexed: 06/03/2024]
Abstract
The correlation between formaldehyde (FA) exposure and prevalence of asthma has been widely reported. However, the underlying mechanism is still not fully understood. FA exposure at 2.0 mg/m3 was found to exacerbate asthma in OVA-induced murine models. IFN-γ, the cytokine produced by T helper 1 (Th1) cells, was significantly induced by FA in serum and bronchoalveolar lavage fluid (BALF) of asthmatic mice, which was different from cytokines secreted by other Th cells. The observation was also confirmed by mRNA levels of Th marker genes in CD4+ T cells isolated from BALF. In addition, increased production of IFN-γ and expression of T-bet in Jurkat T cells primed with phorbol ester and phytohaemagglutinin were also observed with 100 μM FA treatment in vitro. Upregulated STAT1 phosphorylation, T-bet expression and IFN-γ production induced by FA was found to be restrained by STAT1 inhibitor fludarabine, indicating that FA promoted Th1 commitment through the autocrine IFN-γ/STAT1/T-bet pathway in asthma. This work not only revealed that FA could bias Th lineage commitment to exacerbate allergic asthma, but also identified the signaling mechanism of FA-induced Th1 differentiation, which may be utilized as the target for development of interfering strategies against FA-induced immune disorders.
Collapse
Affiliation(s)
- Huijuan Ma
- School of Public Health, Anhui University of Science and Technology, Hefei, Anhui Province 231131, China; Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Tingqian Wang
- Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Junfeng Wang
- School of Public Health, Anhui University of Science and Technology, Hefei, Anhui Province 231131, China
| | - Peiyao Wang
- Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Qi Shu
- Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Ruilin Qin
- Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Sijia Li
- Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Huan Xu
- School of Public Health, Anhui University of Science and Technology, Hefei, Anhui Province 231131, China; Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China.
| |
Collapse
|
3
|
Anbaei P, Stevens MG, Ball AG, Bullock TNJ, Pompano RR. Spatially resolved quantification of oxygen consumption rate in ex vivo lymph node slices. Analyst 2024; 149:2609-2620. [PMID: 38535830 PMCID: PMC11056769 DOI: 10.1039/d4an00028e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 03/09/2024] [Indexed: 04/09/2024]
Abstract
Cellular metabolism has been closely linked to activation state in cells of the immune system, and the oxygen consumption rate (OCR) in particular serves as a valuable metric for assessing metabolic activity. Several oxygen sensing assays have been reported for cells in standard culture conditions. However, none have provided a spatially resolved, optical measurement of local oxygen consumption in intact tissue samples, making it challenging to understand regional dynamics of consumption. Therefore, here we established a system to monitor the rates of oxygen consumption in ex vivo tissue slices, using murine lymphoid tissue as a case study. By integrating an optical oxygen sensor into a sealed perfusion chamber and incorporating appropriate correction for photobleaching of the sensor and of tissue autofluorescence, we were able to visualize and quantify rates of oxygen consumption in tissue. This method revealed for the first time that the rate of oxygen consumption in naïve lymphoid tissue was higher in the T cell region compared to the B cell and cortical regions. To validate the method, we measured OCR in the T cell regions of naïve lymph node slices using the optical assay and estimated the consumption rate per cell. The predictions from the optical assay were similar to reported values and were not significantly different from those of the Seahorse metabolic assay, a gold standard method for measuring OCR in cell suspensions. Finally, we used this method to quantify the rate of onset of tissue hypoxia for lymph node slices cultured in a sealed chamber and showed that continuous perfusion was sufficient to maintain oxygenation. In summary, this work establishes a method to monitor oxygen consumption with regional resolution in intact tissue explants, suitable for future use to compare tissue culture conditions and responses to stimulation.
Collapse
Affiliation(s)
- Parastoo Anbaei
- Department of Chemistry, University of Virginia College of Arts and, Sciences, Charlottesville, Virginia 22904, USA.
| | - Marissa G Stevens
- Department of Pathology, University of Virginia, Charlottesville, Virginia 22903, USA
- Carter Immunology Center and UVA Cancer Center, University of Virginia, Charlottesville, Virginia 22903, USA
| | - Alexander G Ball
- Department of Microbiology Cancer Biology and Immunology, University of Virginia, Charlottesville, Virginia 22903, USA
- Carter Immunology Center and UVA Cancer Center, University of Virginia, Charlottesville, Virginia 22903, USA
| | - Timothy N J Bullock
- Department of Pathology, University of Virginia, Charlottesville, Virginia 22903, USA
- Carter Immunology Center and UVA Cancer Center, University of Virginia, Charlottesville, Virginia 22903, USA
| | - Rebecca R Pompano
- Department of Chemistry, University of Virginia College of Arts and, Sciences, Charlottesville, Virginia 22904, USA.
- Department of Biomedical Engineering, University of Virginia School of Engineering and Applied Sciences, Charlottesville, Virginia 22904, USA
- Carter Immunology Center and UVA Cancer Center, University of Virginia, Charlottesville, Virginia 22903, USA
| |
Collapse
|
4
|
Kyung Kim J, Jo EK. Host and microbial regulation of mitochondrial reactive oxygen species during mycobacterial infections. Mitochondrion 2024; 75:101852. [PMID: 38360196 DOI: 10.1016/j.mito.2024.101852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 01/15/2024] [Accepted: 02/12/2024] [Indexed: 02/17/2024]
Abstract
Mycobacteria, including Mycobacterium tuberculosis (Mtb) and non-tuberculous mycobacteria (NTM), pose challenges in treatment due to their increased resistance to antibiotics. Following infection, mycobacteria and their components trigger robust innate and inflammatory immune responses intricately associated with the modulation of mitochondrial functions, including oxidative phosphorylation (OXPHOS) and metabolism. Certainly, mitochondrial reactive oxygen species (mtROS) are an inevitable by-product of OXPHOS and function as a bactericidal weapon; however, an excessive accumulation of mtROS are linked to pathological inflammation and necroptotic cell death during mycobacterial infection. Despite previous studies outlining various host pathways involved in regulating mtROS levels during antimicrobial responses in mycobacterial infection, our understanding of the precise mechanisms orchestrating the fine regulation of this response remains limited. Emerging evidence suggests that mycobacterial proteins play a role in targeting the mitochondria of the host, indicating the potential influence of microbial factors on mitochondrial functions within host cells. In this review, we provide an overview of how both host and Mtb factors influence mtROS generation during infection. A comprehensive study of host and microbial factors that target mtROS will shed light on innovative approaches for effectively managing drug-resistant mycobacterial infections.
Collapse
Affiliation(s)
- Jin Kyung Kim
- Department of Microbiology, Keimyung University School of Medicine, Daegu, Republic of Korea
| | - Eun-Kyeong Jo
- Infection Control Convergence Research Center, Chungnam National University School of Medicine, Daejeon, Republic of Korea; Department of Medical Science, Chungnam National University School of Medicine, Daejeon, Republic of Korea; Department of Microbiology, Chungnam National University School of Medicine, Daejeon, Republic of Korea.
| |
Collapse
|
5
|
Ghoshal A, Verma A, Bhaskar A, Dwivedi VP. The uncharted territory of host-pathogen interaction in tuberculosis. Front Immunol 2024; 15:1339467. [PMID: 38312835 PMCID: PMC10834760 DOI: 10.3389/fimmu.2024.1339467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 01/03/2024] [Indexed: 02/06/2024] Open
Abstract
Mycobacterium tuberculosis (M.tb) effectively manipulates the host processes to establish the deadly respiratory disease, Tuberculosis (TB). M.tb has developed key mechanisms to disrupt the host cell health to combat immune responses and replicate efficaciously. M.tb antigens such as ESAT-6, 19kDa lipoprotein, Hip1, and Hsp70 destroy the integrity of cell organelles (Mitochondria, Endoplasmic Reticulum, Nucleus, Phagosomes) or delay innate/adaptive cell responses. This is followed by the induction of cellular stress responses in the host. Such cells can either undergo various cell death processes such as apoptosis or necrosis, or mount effective immune responses to clear the invading pathogen. Further, to combat the infection progression, the host secretes extracellular vesicles such as exosomes to initiate immune signaling. The exosomes can contain M.tb as well as host cell-derived peptides that can act as a double-edged sword in the immune signaling event. The host-symbiont microbiota produces various metabolites that are beneficial for maintaining healthy tissue microenvironment. In juxtaposition to the above-mentioned mechanisms, M.tb dysregulates the gut and respiratory microbiome to support its replication and dissemination process. The above-mentioned interconnected host cellular processes of Immunometabolism, Cellular stress, Host Microbiome, and Extracellular vesicles are less explored in the realm of exploration of novel Host-directed therapies for TB. Therefore, this review highlights the intertwined host cellular processes to control M.tb survival and showcases the important factors that can be targeted for designing efficacious therapy.
Collapse
Affiliation(s)
| | | | | | - Ved Prakash Dwivedi
- Immunobiology Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, India
| |
Collapse
|
6
|
Anbaei P, Stevens MG, Ball AG, Bullock TNJ, Pompano RR. Spatially resolved quantification of oxygen consumption rate in ex vivo lymph node slices. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.01.03.573955. [PMID: 38260315 PMCID: PMC10802365 DOI: 10.1101/2024.01.03.573955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
Cellular metabolism has been closely linked to activation state in cells of the immune system, and the oxygen consumption rate (OCR) in particular serves as a valuable metric for assessing metabolic activity. Several oxygen sensing assays have been reported for cells in standard culture conditions. However, none have provided a spatially resolved, optical measurement of local oxygen consumption in intact tissue samples, making it challenging to understand regional dynamics of consumption. Therefore, here we established a system to monitor the rates of oxygen consumption in ex vivo tissue slices, using murine lymphoid tissue as a case study. By integrating an optical oxygen sensor into a sealed perfusion chamber and incorporating appropriate correction for photobleaching of the sensor and of tissue autofluorescence, we were able to visualize and quantify rates of oxygen consumption in tissue. This method revealed for the first time that the rate of oxygen consumption in naïve lymphoid tissue was higher in the T cell region compared to the B cell and cortical regions. To validate the method, we measured OCR in the T cell regions of naïve lymph node slices using the optical assay and estimated the consumption rate per cell. The predictions from the optical assay were similar to reported values and were not significantly different from those of the Seahorse metabolic assay, a gold standard method for measuring OCR in cell suspensions. Finally, we used this method to quantify the rate of onset of tissue hypoxia for lymph node slices cultured in a sealed chamber and showed that continuous perfusion was sufficient to maintain oxygenation. In summary, this work establishes a method to monitor oxygen consumption with regional resolution in intact tissue explants, suitable for future use to compare tissue culture conditions and responses to stimulation. TOC image
Collapse
|
7
|
Zhou P, Shen J, Ge X, Cheng H, Sun Y, Li M, Li H, Yi Z, Li Z. Identification and validation of ubiquitination-related signature and subgroups in immune microenvironment of tuberculosis. Aging (Albany NY) 2023; 15:12570-12587. [PMID: 37950733 PMCID: PMC10683621 DOI: 10.18632/aging.205198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 10/07/2023] [Indexed: 11/13/2023]
Abstract
BACKGROUND Mycobacterium tuberculosis (Mtb) is the bacterial pathogen responsible for causing tuberculosis (TB), a severe public health concern that results in numerous deaths worldwide. Ubiquitination (Ub) is an essential physiological process that aids in maintaining homeostasis and contributes to the development of TB. Therefore, the main objective of our study was to investigate the potential role of Ub-related genes in TB. METHODS Our research entailed utilizing single sample gene set enrichment analysis (ssGSEA) in combination with several machine learning techniques to discern the Ub-related signature of TB and identify potential diagnostic markers that distinguish TB from healthy controls (HC). RESULTS In summary, we used the ssGSEA algorithm to determine the score of Ub families (E1, E2, E3, DUB, UBD, and ULD). Notably, the score of E1, E3, and UBD were lower in TB patients than in HC individuals, and we identified 96 Ub-related differentially expressed genes (UbDEGs). Employing machine learning algorithms, we identified 11 Ub-related hub genes and defined two distinct Ub-related subclusters. Notably, through GSVA and functional analysis, it was determined that these subclusters were implicated in numerous immune-related processes. We further investigated these Ub-related hub genes in four TB-related diseases and found that TRIM68 exhibited higher correlations with various immune cells in different conditions, indicating that it may play a crucial role in the immune process of these diseases. CONCLUSION The observed enrichment of Ub-related gene expression in TB patients emphasizes the potential involvement of ubiquitination in the progression of TB. These significant findings establish a basis for future investigations to elucidate the molecular mechanisms associated with TB, select suitable diagnostic biomarkers, and design innovative therapeutic interventions for combating this fatal infectious disease.
Collapse
Affiliation(s)
- Peipei Zhou
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong 261053, People’s Republic of China
| | - Jie Shen
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong 261053, People’s Republic of China
| | - Xiao Ge
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong 261053, People’s Republic of China
| | - Haien Cheng
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong 261053, People’s Republic of China
| | - Yanli Sun
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong 261053, People’s Republic of China
| | - Meng Li
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong 261053, People’s Republic of China
| | - Heng Li
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong 261053, People’s Republic of China
- Engineering Research Institute of Precision Medicine Innovation and Transformation of Infections Diseases, Weifang Medical University, Weifang, Shandong 261053
| | - Zhengjun Yi
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong 261053, People’s Republic of China
- Engineering Research Institute of Precision Medicine Innovation and Transformation of Infections Diseases, Weifang Medical University, Weifang, Shandong 261053
| | - Zhenpeng Li
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong 261053, People’s Republic of China
- Engineering Research Institute of Precision Medicine Innovation and Transformation of Infections Diseases, Weifang Medical University, Weifang, Shandong 261053
| |
Collapse
|
8
|
Pavlova EN, Lepekha LN, Rybalkina EY, Tarasov RV, Sychevskaya KA, Voronezhskaya EE, Masyutin AG, Ergeshov AE, Erokhina MV. High and Low Levels of ABCB1 Expression Are Associated with Two Distinct Gene Signatures in Lung Tissue of Pulmonary TB Patients with High Inflammation Activity. Int J Mol Sci 2023; 24:14839. [PMID: 37834286 PMCID: PMC10573207 DOI: 10.3390/ijms241914839] [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: 08/24/2023] [Revised: 09/23/2023] [Accepted: 09/27/2023] [Indexed: 10/15/2023] Open
Abstract
P-glycoprotein (encoded by the ABCB1 gene) has a dual role in regulating inflammation and reducing chemotherapy efficacy in various diseases, but there are few studies focused on pulmonary TB patients. In this study, our objective was to identify a list of genes that correlate with high and low levels of ABCB1 gene expression in the lungs of pulmonary TB patients with different activity of chronic granulomatous inflammation. We compared gene expression in two groups of samples (with moderate and high activity of tuberculomas) to identify their characteristic gene signatures. Gene expression levels were determined using quantitative PCR in samples of perifocal area of granulomas, which were obtained from 65 patients after surgical intervention. Subsequently, two distinct gene signatures associated with high inflammation activity were identified. The first signature demonstrated increased expression of HIF1a, TGM2, IL6, SOCS3, and STAT3, which correlated with high ABCB1 expression. The second signature was characterized by high expression of TNFa and CD163 and low expression of ABCB1. These results provide insight into various inflammatory mechanisms and association with P-gp gene expression in lung tissue of pulmonary TB patients and will be useful in the development of a host-directed therapy approach to improving the effectiveness of anti-TB treatment.
Collapse
Affiliation(s)
- Ekaterina N. Pavlova
- Central Tuberculosis Research Institute, 107564 Moscow, Russia; (E.N.P.); (A.G.M.)
- Faculty of Biology, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - Larisa N. Lepekha
- Central Tuberculosis Research Institute, 107564 Moscow, Russia; (E.N.P.); (A.G.M.)
| | - Ekaterina Yu. Rybalkina
- Central Tuberculosis Research Institute, 107564 Moscow, Russia; (E.N.P.); (A.G.M.)
- FSBI N.N. Blokhin National Medical Research Center of Oncology, 115478 Moscow, Russia
| | - Ruslan V. Tarasov
- Central Tuberculosis Research Institute, 107564 Moscow, Russia; (E.N.P.); (A.G.M.)
| | - Ksenia A. Sychevskaya
- Central Tuberculosis Research Institute, 107564 Moscow, Russia; (E.N.P.); (A.G.M.)
- FSBI N.N. Blokhin National Medical Research Center of Oncology, 115478 Moscow, Russia
| | - Elena E. Voronezhskaya
- Koltzov Institute of Developmental Biology of Russian Academy of Sciences, 119334 Moscow, Russia
| | - Alexander G. Masyutin
- Central Tuberculosis Research Institute, 107564 Moscow, Russia; (E.N.P.); (A.G.M.)
- Faculty of Biology, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - Atadzhan E. Ergeshov
- Director of the Institute, Central Tuberculosis Research Institute, 2 Yauzskaya Alleya, 107564 Moscow, Russia;
| | - Maria V. Erokhina
- Central Tuberculosis Research Institute, 107564 Moscow, Russia; (E.N.P.); (A.G.M.)
- Faculty of Biology, Lomonosov Moscow State University, 119234 Moscow, Russia
| |
Collapse
|
9
|
Akinsulie OC, Shahzad S, Ogunleye SC, Oladapo IP, Joshi M, Ugwu CE, Gbadegoye JO, Hassan FO, Adeleke R, Afolabi Akande Q, Adesola RO. Crosstalk between hypoxic cellular micro-environment and the immune system: a potential therapeutic target for infectious diseases. Front Immunol 2023; 14:1224102. [PMID: 37600803 PMCID: PMC10434535 DOI: 10.3389/fimmu.2023.1224102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 06/26/2023] [Indexed: 08/22/2023] Open
Abstract
There are overwhelming reports on the promotional effect of hypoxia on the malignant behavior of various forms of cancer cells. This has been proposed and tested exhaustively in the light of cancer immunotherapy. However, there could be more interesting functions of a hypoxic cellular micro-environment than malignancy. There is a highly intricate crosstalk between hypoxia inducible factor (HIF), a transcriptional factor produced during hypoxia, and nuclear factor kappa B (NF-κB) which has been well characterized in various immune cell types. This important crosstalk shares common activating and inhibitory stimuli, regulators, and molecular targets. Impaired hydroxylase activity contributes to the activation of HIFs. Inflammatory ligands activate NF-κB activity, which leads to the expression of inflammatory and anti-apoptotic genes. The eventual sequelae of the interaction between these two molecular players in immune cells, either bolstering or abrogating functions, is largely cell-type dependent. Importantly, this holds promise for interesting therapeutic interventions against several infectious diseases, as some HIF agonists have helped prevent immune-related diseases. Hypoxia and inflammation are common features of infectious diseases. Here, we highlighted the role of this crosstalk in the light of functional immunity against infection and inflammation, with special focus on various innate and adaptive immune cells. Particularly, we discussed the bidirectional effects of this crosstalk in the regulation of immune responses by monocytes/macrophages, dendritic cells, neutrophils, B cells, and T cells. We believe an advanced understanding of the interplay between HIFs and NF-kB could reveal novel therapeutic targets for various infectious diseases with limited treatment options.
Collapse
Affiliation(s)
- Olalekan Chris Akinsulie
- Department of Veterinary Microbiology and Pathology, College of Veterinary Medicine, Washington State University, Pullman, WA, United States
| | - Sammuel Shahzad
- Department of Veterinary Microbiology and Pathology, College of Veterinary Medicine, Washington State University, Pullman, WA, United States
| | - Seto Charles Ogunleye
- College of Veterinary Medicine, Mississippi State University, Starkville, MS, United States
| | - Ifeoluwa Peace Oladapo
- Department of Veterinary Microbiology and Pathology, College of Veterinary Medicine, Washington State University, Pullman, WA, United States
| | - Melina Joshi
- Center for Molecular Dynamics Nepal, Kathmandu, Nepal
| | - Charles Egede Ugwu
- Paul G. Allen School for Global Health, Washington State University, Pullman, WA, United States
| | - Joy Olaoluwa Gbadegoye
- Department of Physiology, University of Tennessee Health Science Center, Memphis, TN, United States
| | - Fasilat Oluwakemi Hassan
- Department of Physiology, University of Tennessee Health Science Center, Memphis, TN, United States
| | - Richard Adeleke
- College of Veterinary Medicine, Cornell University, Ithaca, NY, United States
| | - Qudus Afolabi Akande
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN, United States
| | | |
Collapse
|
10
|
Zhuang X, Gao F, Sun Z, Ding X, Xu G. Case report: Sympathetic ophthalmia after vitrectomies in a patient with Von Hippel-Lindau syndrome. Front Med (Lausanne) 2023; 10:1118913. [PMID: 36860339 PMCID: PMC9968801 DOI: 10.3389/fmed.2023.1118913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 01/16/2023] [Indexed: 02/17/2023] Open
Abstract
Background Sympathetic ophthalmia (SO) is a rare but sight-threatening uveitis, and most observations have been made after typical manifestations occur. This report focuses on the choroidal changes detected by multimodal imaging at the presymptomatic stage of SO, which is implicated in the early recognition of SO. Case presentation A 21-year-old woman suffered from decreased vision in the right eye and was diagnosed with retinal capillary hemangioblastomas associated with Von Hippel-Lindau syndrome. The patient underwent two 23-G pars plana vitrectomies (PPVs), soon after which typical signs of SO manifested. SO resolved quickly after the oral administration of prednisone and remained stable during the follow-up of more than 1 year. The retrospective analysis revealed preexisting bilaterally increased choroidal thickness, dots of flow void on the choroid, and choriocapillaris en-face slabs in optical coherence tomography angiography (OCTA) after the first PPV, which were all reversed by corticosteroid treatment. Conclusion The case report highlights the involvement of the choroid and choriocapillaris at the presymptomatic stage of SO after the first inciting event. Abnormally thickened choroid and flow void dots suggested that SO had started and an ensuing surgery would run the risk of exacerbating SO. OCTA scanning of both eyes should be ordered routinely for patients with a history of trauma or intraocular surgeries, especially before the next surgical intervention. The report also suggests that non-human leukocyte antigen gene variation may also regulate the progression of SO, which requires further laboratory investigations.
Collapse
Affiliation(s)
- Xiaonan Zhuang
- Department of Ophthalmology, Eye and ENT Hospital, Fudan University, Shanghai, China,Shanghai Key Laboratory of Visual Impairment and Restoration, Fudan University, Shanghai, China,NHC Key Laboratory of Myopia, Fudan University, Shanghai, China
| | - Fengjuan Gao
- Department of Ophthalmology, Eye and ENT Hospital, Fudan University, Shanghai, China,Shanghai Key Laboratory of Visual Impairment and Restoration, Fudan University, Shanghai, China,NHC Key Laboratory of Myopia, Fudan University, Shanghai, China
| | - Zhongcui Sun
- Department of Ophthalmology, Eye and ENT Hospital, Fudan University, Shanghai, China,Shanghai Key Laboratory of Visual Impairment and Restoration, Fudan University, Shanghai, China,NHC Key Laboratory of Myopia, Fudan University, Shanghai, China
| | - Xinyi Ding
- Department of Ophthalmology, Eye and ENT Hospital, Fudan University, Shanghai, China,Shanghai Key Laboratory of Visual Impairment and Restoration, Fudan University, Shanghai, China,NHC Key Laboratory of Myopia, Fudan University, Shanghai, China
| | - Gezhi Xu
- Department of Ophthalmology, Eye and ENT Hospital, Fudan University, Shanghai, China,Shanghai Key Laboratory of Visual Impairment and Restoration, Fudan University, Shanghai, China,NHC Key Laboratory of Myopia, Fudan University, Shanghai, China,*Correspondence: Gezhi Xu,
| |
Collapse
|