251
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Glon D, Léonardon B, Guillemot A, Albertini A, Lagaudrière-Gesbert C, Gaudin Y. Biomolecular condensates with liquid properties formed during viral infections. Microbes Infect 2024:105402. [PMID: 39127089 DOI: 10.1016/j.micinf.2024.105402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 07/10/2024] [Accepted: 08/05/2024] [Indexed: 08/12/2024]
Abstract
During a viral infection, several membraneless compartments with liquid properties are formed. They can be of viral origin concentrating viral proteins and nucleic acids, and harboring essential stages of the viral cycle, or of cellular origin containing components involved in innate immunity. This is a paradigm shift in our understanding of viral replication and the interaction between viruses and innate cellular immunity.
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Affiliation(s)
- Damien Glon
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Université Paris-Saclay, 91198 Gif-sur-Yvette, France
| | - Benjamin Léonardon
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Université Paris-Saclay, 91198 Gif-sur-Yvette, France
| | - Ariane Guillemot
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Université Paris-Saclay, 91198 Gif-sur-Yvette, France
| | - Aurélie Albertini
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Université Paris-Saclay, 91198 Gif-sur-Yvette, France
| | - Cécile Lagaudrière-Gesbert
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Université Paris-Saclay, 91198 Gif-sur-Yvette, France.
| | - Yves Gaudin
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Université Paris-Saclay, 91198 Gif-sur-Yvette, France.
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252
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Paul AA, Kadosh YS, Kushmaro A, Marks RS. Microbead-Encapsulated Luminescent Bioreporter Screening of P. aeruginosa via Its Secreted Quorum-Sensing Molecules. BIOSENSORS 2024; 14:383. [PMID: 39194612 DOI: 10.3390/bios14080383] [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: 07/04/2024] [Revised: 08/03/2024] [Accepted: 08/05/2024] [Indexed: 08/29/2024]
Abstract
Pseudomonas aeruginosa is an opportunistic Gram-negative bacterium that remains a prevalent clinical and environmental challenge. Quorum-sensing (QS) molecules are effective biomarkers in pinpointing the presence of P. aeruginosa. This study aimed to develop a convenient-to-use, whole-cell biosensor using P. aeruginosa reporters individually encapsulated within alginate-poly-L-lysine (alginate-PLL) microbeads to specifically detect the presence of bacterial autoinducers. The PLL-reinforced microbeads were prepared using a two-step method involving ionic cross-linking and subsequent coating with thin layers of PLL. The alginate-PLL beads showed good stability in the presence of a known cation scavenger (sodium citrate), which typically limits the widespread applications of calcium alginate. In media containing synthetic autoinducers-such as N-(3-oxo dodecanoyl) homoserine lactone (3-oxo-C12-HSL) and N-butanoyl-L-homoserine lactone (C4-HSL), or the cell-free supernatants of planktonic or the flow-cell biofilm effluent of wild P. aeruginosa (PAO1)-the encapsulated bacteria enabled a dose-dependent detection of the presence of these QS molecules. The prepared bioreporter beads remained stable during prolonged storage at 4 and -80 °C and were ready for on-the-spot sensing without the need for recovery. The proof-of-concept, optical fiber-based, and whole-cell biosensor developed here demonstrates the practicality of the encapsulated bioreporter for bacterial detection based on specific QS molecules.
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Affiliation(s)
- Abraham Abbey Paul
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Be'er Sheva 84105, Israel
| | - Yael Schlichter Kadosh
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Be'er Sheva 84105, Israel
| | - Ariel Kushmaro
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Be'er Sheva 84105, Israel
- The Ilse Katz Center for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Be'er Sheva 84105, Israel
- School of Sustainability and Climate Change, Ben-Gurion University of the Negev, Be'er Sheva 84105, Israel
| | - Robert S Marks
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Be'er Sheva 84105, Israel
- The Ilse Katz Center for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Be'er Sheva 84105, Israel
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253
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Saporiti S, Bianchi D, Ben Mariem O, Rossi M, Guerrini U, Eberini I, Centola F. In silico evaluation of the role of Fab glycosylation in cetuximab antibody dynamics. Front Immunol 2024; 15:1429600. [PMID: 39185413 PMCID: PMC11342397 DOI: 10.3389/fimmu.2024.1429600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Accepted: 07/23/2024] [Indexed: 08/27/2024] Open
Abstract
Introduction N-glycosylation is a post-translational modification that is highly important for the development of monoclonal antibodies (mAbs), as it regulates their biological activity, particularly in terms of immune effector functions. While typically added at the Fc level, approximately 15-25% of circulating antibodies exhibit glycosylation in the Fab domains as well. To the best of our knowledge, cetuximab (Erbitux®) is the only therapeutic antibody presenting Fab glycosylation approved world-wide targeting the epidermal growth factor receptor for the treatment of metastatic-colorectal and head and neck cancers. Additionally, it can trigger antibody-dependent cell cytotoxicity (ADCC), a response that typically is influenced by N-glycosylation at Fc level. However, the role of Fab glycosylation in cetuximab remains poorly understood. Hence, this study aims to investigate the structural role of Fab glycosylation on the conformational behavior of cetuximab. Methods The study was performed in silico via accelerated molecular dynamics simulations. The commercial cetuximab was compared to its form without Fab glycosylation and structural descriptors were evaluated to establish conformational differences. Results The results clearly show a correlation between the Fab glycosylation and structural descriptors that may modulate the conformational freedom of the antibody, potentially affecting Fc effector functions, and suggesting a negative role of Fab glycosylation on the interaction with FcγRIIIa. Conclusion Fab glycosylation of cetuximab is the most critical challenge for biosimilar development, but the differences highlighted in this work with respect to its aglycosylated form can improve the knowledge and represent also a great opportunity to develop novel strategies of biotherapeutics.
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Affiliation(s)
- Simona Saporiti
- Analytical Excellence and Program Management, Merck Serono S.p.A., Rome, Italy
| | - Davide Bianchi
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Milan, Italy
| | - Omar Ben Mariem
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Milan, Italy
| | - Mara Rossi
- Analytical Excellence and Program Management, Merck Serono S.p.A., Rome, Italy
| | - Uliano Guerrini
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Milan, Italy
| | - Ivano Eberini
- Dipartimento di Scienze Farmacologiche e Biomolecolari & Data Science Research Center (DSRC), Università degli Studi di Milano, Milan, Italy
| | - Fabio Centola
- Analytical Excellence and Program Management, Merck Serono S.p.A., Rome, Italy
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254
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Sait AM, Day PJR. Interconnections between the Gut Microbiome and Alzheimer's Disease: Mechanisms and Therapeutic Potential. Int J Mol Sci 2024; 25:8619. [PMID: 39201303 PMCID: PMC11354889 DOI: 10.3390/ijms25168619] [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: 06/18/2024] [Revised: 07/23/2024] [Accepted: 08/06/2024] [Indexed: 09/02/2024] Open
Abstract
Alzheimer's disease (AD) is a neurodegenerative disease that is known to accumulate amyloid-β (Aβ) and tau protein. Clinical studies have not identified pathogenesis mechanisms or produced an effective cure for AD. The Aβ monoclonal antibody lecanemab reduces Aβ plaque formation for the treatment of AD, but more studies are required to increase the effectiveness of drugs to reduce cognitive decline. The lack of AD therapy targets and evidence of an association with an acute neuroinflammatory response caused by several bacteria and viruses in some individuals has led to the establishment of the infection hypothesis during the last 10 years. How pathogens cross the blood-brain barrier is highly topical and is seen to be pivotal in proving the hypothesis. This review summarizes the possible role of the gut microbiome in the pathogenesis of AD and feasible therapeutic approaches and current research limitations.
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Affiliation(s)
- Ahmad M. Sait
- Medical Laboratory Science, Faculty of Applied Medical Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
- Regenerative Medicine Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Philip J. R. Day
- Division of Evolution and Genomic Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester M13 9PL, UK
- Department of Medicine, University of Cape Town, Cape Town 7925, South Africa
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255
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Han X, Tian H, Yang L, Ji Y. Bidirectional Mendelian randomization to explore the causal relationships between the gut microbiota and male reproductive diseases. Sci Rep 2024; 14:18306. [PMID: 39112529 PMCID: PMC11306555 DOI: 10.1038/s41598-024-69179-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Accepted: 08/01/2024] [Indexed: 08/10/2024] Open
Abstract
Gut bacteria might play an important role in male reproductive disorders, such as male infertility and sperm abnormalities; however, their causal role is unclear. Herein, Mendelian randomization (MR)-Egger, weighted median, inverse variance weighting, Simple mode, and Weighted mode were used to test the causal relationship between gut microbes and male reproductive diseases. The MR results were validated using various metrics. The MR results were also consolidated using reverse causality speculation, conducted using two-way MR analysis and Steiger filtering. Biological function was analysed using enrichment analyses. The results suggested that eight intestinal microflorae were causally associated with male infertility. The Eubacterium oxidoreducens group was associated with an increased risk of male infertility, while the family Bacteroidaceae was negatively associated with male reproductive diseases. Eight intestinal microflorae were causally associated with abnormal spermatozoa. The family Streptococcaceae was associated with a high risk of abnormal spermatozoa, whereas the family Porphyromonadaceae was associated with a low risk of abnormal spermatozoa. No pleiotropy was observed, this study identified a high correlation between the gut flora and the likelihood of male reproductive diseases. Future research will attempt to advance microbial-focused treatments for such diseases.
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Affiliation(s)
- Xiaofang Han
- Core Laboratory, Shanxi Provincial People's Hospital (Fifth Hospital of Shanxi Medical University), Taiyuan, China.
| | - Hui Tian
- Core Laboratory, Shanxi Provincial People's Hospital, Shanxi Medical University, Taiyuan, China
| | - Liu Yang
- Core Laboratory, Shanxi Provincial People's Hospital, Shanxi Medical University, Taiyuan, China
| | - Yuanyuan Ji
- Core Laboratory, Shanxi Provincial People's Hospital, Shanxi Medical University, Taiyuan, China
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256
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Lee D, Jo MG, Min KY, Choi MY, Kim YM, Kim HS, Choi WS. IL-10 + regulatory B cells mitigate atopic dermatitis by suppressing eosinophil activation. Sci Rep 2024; 14:18164. [PMID: 39107352 PMCID: PMC11303538 DOI: 10.1038/s41598-024-68660-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2024] [Accepted: 07/26/2024] [Indexed: 08/10/2024] Open
Abstract
Atopic dermatitis (AD) presents significant therapeutic challenges due to its poorly understood etiology. Eosinophilia, a hallmark of allergic inflammation, is implicated in AD pathogenesis. Interleukin-10 (IL-10)-producing regulatory B (Breg) cells exhibit potent anti-inflammatory effects. However, their role in controlling AD-related eosinophilia is not well understood. To investigate the impact of eosinophils on AD, we employed IL-5Rα-deficient (Il5ra-/-) mice, which lack functional eosinophils. Induction of AD in these mice resulted in attenuated disease symptoms, underscoring the critical role of eosinophils in AD development. Additionally, the adoptive transfer of purified Breg cells into mice with AD significantly alleviated disease severity. Mechanistic studies revealed that IL-10 produced by Breg cells directly inhibits eosinophil activation and infiltration into the skin. In vitro experiments further confirmed that Breg cells inhibited eosinophil peroxidase secretion in an IL-10-dependent manner. Our collective findings demonstrate that IL-10 from Breg cells alleviates AD by suppressing eosinophil activation and tissue infiltration. This study elucidates a novel regulatory mechanism of Breg cells, providing a foundation for future Breg-mediated therapeutic strategies for AD.
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Affiliation(s)
- Dajeong Lee
- School of Medicine, Konkuk University, Chungju, 27478, Korea
| | - Min Geun Jo
- School of Medicine, Konkuk University, Chungju, 27478, Korea
| | - Keun Young Min
- School of Medicine, Konkuk University, Chungju, 27478, Korea
| | - Min Yeong Choi
- School of Medicine, Konkuk University, Chungju, 27478, Korea
| | - Young Mi Kim
- College of Pharmacy, Duksung Women's University, Seoul, 01369, Korea
| | - Hyuk Soon Kim
- Department of Biomedical Sciences, College of Natural Science and Department of Health Sciences, The Graduate School of Dong-A University, Busan, 49315, Korea.
| | - Wahn Soo Choi
- School of Medicine, Konkuk University, Chungju, 27478, Korea.
- Institute of Biomedical Sciences & Technology, Konkuk University, Seoul, 05029, Korea.
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257
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Pei J, Guan Y, Xiao W, Ge J, Feng L, Yang H. The comparison of gut microbiota between wild and captive Asian badgers (Meles leucurus) under different seasons. Sci Rep 2024; 14:18199. [PMID: 39107422 PMCID: PMC11303745 DOI: 10.1038/s41598-024-69277-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Accepted: 08/02/2024] [Indexed: 08/10/2024] Open
Abstract
The gut microbiota plays an important role in the immunology, physiology and growth and development of animals. However, currently, there is a lack of available sequencing data on the gut microbiota of Asian badgers. Studying the gut microbiota of Asian badgers could provide fundamental data for enhancing productivity and immunity of badgers' breeding, as well as for the protection of wild animals. In this study, we first characterized the composition and structure of the gut microbiota in the large intestines of wild and captive Asian badgers during summer and winter by sequencing the V3-V4 region of the 16S ribosomal RNA gene. A total of 9 dominant phyla and 12 genera among the bacterial communities of the large intestines exhibited significant differences. Our results showed that Firmicutes and Proteobacteria were the most predominant in both wild and captive badgers, regardless of the season. Romboutsia, Streptococcus and Enterococcus may represent potential sources of zoonoses, warranting further attention and study. Our findings indicated that the diversity and availability of food resources were the most important influencing factors on the gut microbiota of Asian badgers, providing fundamental data for the protection and conservation of wild animals. Variation in the gut microbiota due to season, age and sex in both wild and captive Asian badgers should be considered in future research directions. Furthermore, combined multi-omics studies could provide more information for wild animal conservation, and enhancing our understanding of the molecular mechanism between the microbiota and host.
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Affiliation(s)
- Jianchi Pei
- Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, National Forestry and Grassland Administration Key Laboratory for Northeast Tiger and Leopard National Park Conservation Ecology, Northeast Tiger and Leopard Biodiversity National Observation and Research Station, National Forestry and Grassland Administration Amur Tiger and Amur Leopard Monitoring and Research Center, College of Life Sciences, Beijing Normal University, Beijing, 100875, China
| | - Yu Guan
- Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, National Forestry and Grassland Administration Key Laboratory for Northeast Tiger and Leopard National Park Conservation Ecology, Northeast Tiger and Leopard Biodiversity National Observation and Research Station, National Forestry and Grassland Administration Amur Tiger and Amur Leopard Monitoring and Research Center, College of Life Sciences, Beijing Normal University, Beijing, 100875, China.
| | - Wenhong Xiao
- State Key Laboratory of Integrated Management of Pest Insects and Rodents in Agriculture, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Jianping Ge
- Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, National Forestry and Grassland Administration Key Laboratory for Northeast Tiger and Leopard National Park Conservation Ecology, Northeast Tiger and Leopard Biodiversity National Observation and Research Station, National Forestry and Grassland Administration Amur Tiger and Amur Leopard Monitoring and Research Center, College of Life Sciences, Beijing Normal University, Beijing, 100875, China
| | - Limin Feng
- Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, National Forestry and Grassland Administration Key Laboratory for Northeast Tiger and Leopard National Park Conservation Ecology, Northeast Tiger and Leopard Biodiversity National Observation and Research Station, National Forestry and Grassland Administration Amur Tiger and Amur Leopard Monitoring and Research Center, College of Life Sciences, Beijing Normal University, Beijing, 100875, China
| | - Haitao Yang
- Institute of Remote Sensing and Geographic Information System, School of Earth and Space Sciences, Peking University, Beijing, 100871, China.
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258
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Graafen L, Heinze A, Albinger N, Salzmann-Manrique E, Ganß F, Hünecke S, Cappel C, Wölke S, Donath H, Trischler J, Theilen TM, Heller C, Königs C, Ehl S, Bader P, Klingebiel T, Klusmann JH, Zielen S, Schubert R, Ullrich E. Immune profiling and functional analysis of NK and T cells in ataxia telangiectasia. Front Immunol 2024; 15:1377955. [PMID: 39165363 PMCID: PMC11333214 DOI: 10.3389/fimmu.2024.1377955] [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: 01/28/2024] [Accepted: 06/21/2024] [Indexed: 08/22/2024] Open
Abstract
Ataxia telangiectasia (AT) is a rare autosomal-recessive disorder characterized by profound neurodegeneration, combined immunodeficiency, and an increased risk for malignant diseases. Treatment options for AT are limited, and the long-term survival prognosis for patients remains grim, primarily due to the emergence of chronic respiratory pathologies, malignancies, and neurological complications. Understanding the dysregulation of the immune system in AT is fundamental for the development of novel treatment strategies. In this context, we performed a retrospective longitudinal immunemonitoring of lymphocyte subset distribution in a cohort of AT patients (n = 65). Furthermore, we performed FACS analyses of peripheral blood mononuclear cells from a subgroup of 12 AT patients to examine NK and T cells for the expression of activating and functional markers. We observed reduced levels of peripheral blood CD3+CD8+ cytotoxic T cells, CD3+CD4+ T helper cells, and CD19+ B cells, whereas the amount of CD3--CD56+ NK cells and CD3+CD56+ NKT-like cells was similar compared with age-matched controls. Notably, there was no association between the age-dependent kinetic of T-, B-, or NK-cell counts and the occurrence of malignancy in AT patients. Additionally, our results indicate an altered NK- and T-cell response to cytokine stimulation in AT with increased levels of TRAIL, FasL, and CD16 expression in NK cells, as well as an elevated activation level of T cells in AT with notably higher expression levels of IFN-γ, CD107a, TRAIL, and FasL. Together, these findings imply function alterations in AT lymphocytes, specifically in T and NK cells, shedding light on potential pathways for innovative therapies.
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Affiliation(s)
- Lea Graafen
- Department of Pediatrics, Goethe University Frankfurt, Frankfurt am Main, Germany
- Department of Pediatrics, Experimental Immnology and Cell Therapy, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Annekathrin Heinze
- Department of Pediatrics, Goethe University Frankfurt, Frankfurt am Main, Germany
- Department of Pediatrics, Experimental Immnology and Cell Therapy, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Nawid Albinger
- Department of Pediatrics, Goethe University Frankfurt, Frankfurt am Main, Germany
- Department of Pediatrics, Experimental Immnology and Cell Therapy, Goethe University Frankfurt, Frankfurt am Main, Germany
| | | | - Franziska Ganß
- Department of Pediatrics, Goethe University Frankfurt, Frankfurt am Main, Germany
- Department of Pediatrics, Experimental Immnology and Cell Therapy, Goethe University Frankfurt, Frankfurt am Main, Germany
- Frankfurt Cancer Institute, Goethe University, Frankfurt am Main, Germany
| | - Sabine Hünecke
- Department of Pediatrics, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Claudia Cappel
- Department of Pediatrics, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Sandra Wölke
- Department of Pediatrics, Goethe University Frankfurt, Frankfurt am Main, Germany
- Department of Pediatrics, Division of Pneumology, Allergology, Infectious Diseases and Gastroenterology, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Helena Donath
- Department of Pediatrics, Goethe University Frankfurt, Frankfurt am Main, Germany
- Department of Pediatrics, Division of Pneumology, Allergology, Infectious Diseases and Gastroenterology, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Jordis Trischler
- Department of Pediatrics, Goethe University Frankfurt, Frankfurt am Main, Germany
- Department of Pediatrics, Division of Pneumology, Allergology, Infectious Diseases and Gastroenterology, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Till-Martin Theilen
- Department of Pediatric Surgery and Urology, Goethe University Frankfurt, Frankfurt, Germany
| | - Christine Heller
- Department of Pediatrics, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Christoph Königs
- Department of Pediatrics, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Stephan Ehl
- Institute for Immunodeficiency, Center for Chronic Immunodeficiency, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Peter Bader
- Department of Pediatrics, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Thomas Klingebiel
- Department of Pediatrics, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Jan-Henning Klusmann
- Department of Pediatrics, Goethe University Frankfurt, Frankfurt am Main, Germany
- Frankfurt Cancer Institute, Goethe University, Frankfurt am Main, Germany
| | - Stefan Zielen
- Department of Pediatrics, Goethe University Frankfurt, Frankfurt am Main, Germany
- Department of Pediatrics, Division of Pneumology, Allergology, Infectious Diseases and Gastroenterology, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Ralf Schubert
- Department of Pediatrics, Goethe University Frankfurt, Frankfurt am Main, Germany
- Department of Pediatrics, Division of Pneumology, Allergology, Infectious Diseases and Gastroenterology, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Evelyn Ullrich
- Department of Pediatrics, Goethe University Frankfurt, Frankfurt am Main, Germany
- Department of Pediatrics, Experimental Immnology and Cell Therapy, Goethe University Frankfurt, Frankfurt am Main, Germany
- Frankfurt Cancer Institute, Goethe University, Frankfurt am Main, Germany
- German Cancer Consortium (DKTK) Partner Site Frankfurt/Mainz, Frankfurt am Main, Germany
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259
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Isaac-Bamgboye FJ, Mgbechidinma CL, Onyeaka H, Isaac-Bamgboye IT, Chukwugozie DC. Exploring the Potential of Postbiotics for Food Safety and Human Health Improvement. J Nutr Metab 2024; 2024:1868161. [PMID: 39139215 PMCID: PMC11321893 DOI: 10.1155/2024/1868161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Revised: 05/10/2024] [Accepted: 07/09/2024] [Indexed: 08/15/2024] Open
Abstract
Food safety is a global concern, with millions suffering from foodborne diseases annually. The World Health Organization (WHO) reports significant morbidity and mortality associated with contaminated food consumption, and this emphasizes the critical need for comprehensive food safety measures. Recent attention has turned to postbiotics, metabolic byproducts of probiotics, as potential agents for enhancing food safety. Postbiotics, including organic acids, enzymes, and bacteriocins, exhibit antimicrobial and antioxidant properties that do not require live organisms, and this offers advantages over probiotics. This literature review critically examines the role of postbiotics in gut microbiome modulation and applications in the food industry. Through an extensive review of existing literature, this study evaluates the impact of postbiotics on gut microbiome composition and their potential as functional food ingredients. Research indicates that postbiotics are effective in inhibiting food pathogens such as Staphylococcus aureus, Salmonella enterica, and Escherichia coli, as well as their ability to prevent oxidative stress-related diseases, and they also show promise as alternatives to conventional food preservatives that can extend food shelf life by inhibiting harmful bacterial growth. Their application in functional foods contributes to improved gut health and reduced risk of foodborne illnesses. Findings suggest that postbiotics hold promise for improving health and preservation by inhibiting pathogenic bacteria growth and modulating immune responses.
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Affiliation(s)
- Folayemi Janet Isaac-Bamgboye
- Department of Chemical EngineeringUniversity of Birmingham, Birmingham, UK
- Department of Food Science and TechnologyFederal University of Technology, Akure, Ondo State, Nigeria
| | - Chiamaka Linda Mgbechidinma
- Centre for Cell and Development Biology and State Key Laboratory of AgrobiotechnologySchool of Life SciencesThe Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
- Ocean CollegeZhejiang University, Zhoushan 316021, Zhejiang, China
- Department of MicrobiologyUniversity of Ibadan, Ibadan, Oyo State 200243, Nigeria
| | - Helen Onyeaka
- Department of Chemical EngineeringUniversity of Birmingham, Birmingham, UK
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260
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Idouz K, Belhaj A, Rondelet B, Dewachter L, Flamion B, Kirschvink N, Dogné S. Cascading renal injury after brain death: Unveiling glycocalyx alteration and the potential protective role of tacrolimus. Front Cell Dev Biol 2024; 12:1449209. [PMID: 39165663 PMCID: PMC11333349 DOI: 10.3389/fcell.2024.1449209] [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: 06/14/2024] [Accepted: 07/25/2024] [Indexed: 08/22/2024] Open
Abstract
Brain death (BD) is a complex medical state that triggers systemic disturbances and a cascade of pathophysiological processes. This condition significantly impairs both kidney function and structural integrity, thereby presenting considerable challenges to graft viability and the long-term success of transplantation endeavors. Tacrolimus (FK506), an immunosuppressive drug, was used in this study to assess its impact as a pretreatment on brain death-induced renal injury. This study aimed to investigate changes associated with brain death-induced renal injury in a 4-month-old female porcine model. The experimental groups included brain death placebo-pretreated (BD; n = 9), brain death tacrolimus-pretreated using the clinical dose of 0.25 mg/kg the day before surgery, followed by 0.05 mg/kg/day 1 hour before the procedure (BD + FK506; n = 8), and control (ctrl, n = 7) piglets, which did not undergo brain death induction. Furthermore, we aimed to assess the effect of FK506 on these renal alterations through graft preconditioning. We hypothesized that immunosuppressive properties of FK506 reduce tissue inflammation and preserve the glycocalyx. Our findings revealed a series of interconnected events triggered by BD, leading to a deterioration of renal function and increased proteinuria, increased apoptosis in the vessels, glomeruli and tubules, significant leukocyte infiltration into renal tissue, and degradation of the glycocalyx in comparison with ctrl group. Importantly, treatment with FK506 demonstrated significant efficacy in attenuating these adverse effects. FK506 helped reduce apoptosis, maintain glycocalyx integrity, regulate neutrophil infiltration, and mitigate renal injury following BD. This study offers new insights into the pathophysiology of BD-induced renal injury, emphasizing the potential of FK506 pretreatment as a promising therapeutic intervention for organ preservation, through maintaining endothelial function with the additional benefit of limiting the risk of rejection.
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Affiliation(s)
- Kaoutar Idouz
- Molecular Physiology Research Unit (URPhyM), Namur Research Institute for Life Sciences (NARILIS), University of Namur (Unamur), Namur, Belgium
| | - Asmae Belhaj
- Department of Cardio-Vascular, Thoracic Surgery and Lung Transplantation, CHU UCL Namur, UCLouvain, Yvoir, Belgium
| | - Benoit Rondelet
- Department of Cardio-Vascular, Thoracic Surgery and Lung Transplantation, CHU UCL Namur, UCLouvain, Yvoir, Belgium
| | - Laurence Dewachter
- Laboratory of Physiology and Pharmacology, Université Libre de Bruxelles, Brussels, Belgium
| | - Bruno Flamion
- Molecular Physiology Research Unit (URPhyM), Namur Research Institute for Life Sciences (NARILIS), University of Namur (Unamur), Namur, Belgium
- Clinical Development, Idorsia Pharmaceuticals Ltd., Allschwil, Switzerland
| | - Nathalie Kirschvink
- Molecular Physiology Research Unit (URPhyM), Namur Research Institute for Life Sciences (NARILIS), University of Namur (Unamur), Namur, Belgium
| | - Sophie Dogné
- Molecular Physiology Research Unit (URPhyM), Namur Research Institute for Life Sciences (NARILIS), University of Namur (Unamur), Namur, Belgium
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Lyu S, Oliver ET, Dispenza MC, Chichester KL, Hoffman J, MacGlashan DW, Adkinson NF, Phillips EJ, Alvarez-Arango S. A Skin Testing Strategy for Non-IgE-Mediated Reactions Associated With Vancomycin. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2024:S2213-2198(24)00778-5. [PMID: 39117269 DOI: 10.1016/j.jaip.2024.07.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 07/23/2024] [Accepted: 07/24/2024] [Indexed: 08/10/2024]
Abstract
BACKGROUND Vancomycin infusion reaction (VIR), reportedly mediated through Mas-Related G Protein-Coupled Receptor-X2, is the primary vancomycin-induced immediate drug reaction. Clinically, distinguishing the underlying drug-induced immediate drug reaction mechanisms is crucial for future treatment strategies, including drug restriction, re-administration, and pretreatment considerations. However, the lack of validated diagnostic tests makes this challenging, often leading to unnecessary drug restriction. OBJECTIVE To determine whether intradermal tests (IDTs) and, separately, the basophil activation test (BAT) differentiate VIR from vancomycin-tolerant subjects. METHODS This was a cross-sectional study of vancomycin-exposed adults with and without a history of VIR. Data on demographics, allergy-related comorbidities, history of vancomycin exposures, and VIR characteristics were collected. IDT with vancomycin was performed. IDT dose-response EC50, IDT-related local symptoms, and BAT results were compared between groups. RESULTS A total of 11 VIR and 10 vancomycin-tolerant subjects were enrolled. The most reported VIR symptoms were pruritus (82%), flushing (82%), hives (46%), angioedema (27%), and dyspnea (19%). The IDT dose-response mean EC50 was 328 μg/mL (95% CI, 296-367) in the VIR versus 1166 μg/mL (95% CI, 1029-1379) in the tolerant group (P < .0001). All VIR subjects reported IDT-related local pruritus compared with 60% of tolerant subjects (P = .0185). The %CD63+ basophils were consistently less than 2%, without significant differences between groups (P < .54). CONCLUSIONS Variations in skin test methodologies could help identify other immediate drug reaction mechanisms beyond IgE. This skin test protocol holds the potential for identifying VIR, particularly in cases where patients have received multiple drugs while BAT is insufficient. Future studies will validate and delineate its predictive value, assessing the risk of VIR.
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Affiliation(s)
- Siyan Lyu
- Johns Hopkins University, Baltimore, Md
| | - Eric T Oliver
- Division of Allergy and Clinical Immunology, Department of Medicine, Johns Hopkins School of Medicine, Baltimore, Md
| | - Melanie C Dispenza
- Division of Allergy and Clinical Immunology, Department of Medicine, Johns Hopkins School of Medicine, Baltimore, Md
| | - Kristin L Chichester
- Division of Allergy and Clinical Immunology, Department of Medicine, Johns Hopkins School of Medicine, Baltimore, Md
| | - Jennifer Hoffman
- Division of Clinical Pharmacology, Departments of Medicine and Pharmacology and Molecular Science, Johns Hopkins School of Medicine, Baltimore, Md
| | - Donald W MacGlashan
- Division of Allergy and Clinical Immunology, Department of Medicine, Johns Hopkins School of Medicine, Baltimore, Md
| | - N Franklin Adkinson
- Division of Allergy and Clinical Immunology, Department of Medicine, Johns Hopkins School of Medicine, Baltimore, Md
| | - Elizabeth J Phillips
- Center for Drug Safety and Immunology, Departments of Medicine, Dermatology, Pharmacology, Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, Tenn
| | - Santiago Alvarez-Arango
- Division of Allergy and Clinical Immunology, Department of Medicine, Johns Hopkins School of Medicine, Baltimore, Md; Division of Clinical Pharmacology, Departments of Medicine and Pharmacology and Molecular Science, Johns Hopkins School of Medicine, Baltimore, Md.
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262
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Yehia SA, Badr AM, Bashtar AR, Ibrahim MAA, Mousa MR, Mostafa NA. Immune response, oxidative stress, and histological changes of Wistar rats after being administered with Parascaris equorum antigen. Sci Rep 2024; 14:18069. [PMID: 39103392 PMCID: PMC11300452 DOI: 10.1038/s41598-024-67788-y] [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: 02/28/2024] [Accepted: 07/16/2024] [Indexed: 08/07/2024] Open
Abstract
Worldwide, particularly in developing nations, helminth infections are the leading causes of livestock illness and mortality. Parascaris (P.) equorum, a parasitic worm from the Ascarididae family, significantly impacts the production, health, and working performance of equines. This study aimed to investigate the impact of intraperitoneal sensitization of P. equorum on the immune system, oxidative stress, and histology in Wistar rats. After acclimatization for 7 days, we divided the rats into five groups, each consisting of six rats. Group I, serving as the control, was administered distilled water, followed by groups II (day 7), III (day 14), IV (day 21), and V (day 33). The rats were euthanized every day mentioned (Days 7-33). On day 0, a dosage of 1ml/100 gm rat (containing 500 μg/ml protein content) emulsified crude antigen extract with an incomplete Freund's adjuvant (1:1 volume), followed by a second dose of the same antigen concentration on day 7. To assess the allergenicity of this nematode, we measured a whole blood profile, serum levels of IFN-γ, IL-5, IL-10, IL-13, and IL-33, total immunoglobulins IgE and IgG, and oxidative stress markers. Also, we examined histological changes in the liver, kidney, and spleen. The results showed that values of total leukocyte count, granulocytes, monocytes, and lymphocytes were significantly (P < 0.05) increased on day 14 post-infection relative to other days of investigation. It was found that the levels of total immunoglobulins (IgE and IgG) and cytokines (INF-γ, IL-5, IL-13, and IL-33) on days 14 and 21 were significantly higher than in the control group. At all periods of the experiment, the injected group exhibited significantly higher concentrations of MDA and NO compared to the control group (P < 0.05). Conversely, GSH and CAT levels (P < 0.05) dropped significantly on days 7, 14, and 21. Different rat tissues showed alterations. Ultimately, this study described the detrimental effects of P. equorum crude antigen administration on the immune system, oxidative states, and histological changes of Wistar rats at various intervals.
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Affiliation(s)
- Salma Adel Yehia
- Zoology Department, Faculty of Science, Cairo University, Giza, Egypt
| | | | | | | | - Mohamed Refat Mousa
- Pathology Department, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
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Bernshtein B, Kelly M, Cizmeci D, Zhiteneva JA, Macvicar R, Kamruzzaman M, Bhuiyan TR, Chowdhury F, Khan AI, Qadri F, Charles RC, Xu P, Kováč P, Clarkson KA, Kaminski RW, Alter G, Ryan ET. Determinants of immune responses predictive of protection against shigellosis in an endemic zone: a systems analysis of antibody profiles and function. THE LANCET. MICROBE 2024:100889. [PMID: 39116906 DOI: 10.1016/s2666-5247(24)00112-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 04/22/2024] [Accepted: 04/23/2024] [Indexed: 08/10/2024]
Abstract
BACKGROUND Shigella is the third leading global cause of moderate or severe diarrhoea among children younger than 5 years globally, and is the leading cause in children aged 24-59 months. The mechanism of protection against Shigella infection and disease in endemic areas is uncertain. We aimed to compare the Shigella-specific antibody responses in individuals living in Shigella-endemic and non-endemic areas, and to identify correlates of protection in a Shigella-endemic location. METHODS We applied a systems approach to retrospectively analyse serological responses to Shigella across endemic and non-endemic populations. We profiled serum samples collected from 44 individuals from the USA without previous exposure to Shigella and who were experimentally challenged with Shigella sonnei (non-endemic setting), and serum samples collected from 55 Peruvian army recruits (endemic setting). In the endemic setting, a subset of 37 samples collected from individuals infected with culture-confirmed Shigella flexneri 2a were divided into two groups: susceptible, which included individuals infected within 90 days of entering the camp (n=29); or resistant, which included individuals infected later than 90 days after entering the camp (n=8). We analysed Shigella-specific antibody isotype, subclass, and Fc receptor binding profiles across IpaB, IpaC, IpaD, and lipopolysaccharide from S flexneri 2a, 3a, and 6, and S sonnei, and O-specific polysaccharide (OSP) from S flexneri 2a and 3a and S sonnei. We also evaluated antibody-mediated complement deposition and innate immune cell activation. The main outcome of interest was the detection of antibody markers and functionality associated with protection against shigellosis in a high-burden endemic setting. FINDINGS Adults with endemic exposure to Shigella possessed broad and functional antibody responses across polysaccharide, glycolipid, and protein antigens compared with individuals from non-endemic regions. In a setting with high Shigella burden, elevated levels of OSP-specific Fcα receptor (FcαR) binding antibodies were associated with resistance to shigellosis, whereas total OSP-specific IgA was not, suggesting a potentially unique functionality. OSP-specific FcαR binding IgA found in resistant individuals activated bactericidal neutrophil functions including phagocytosis, degranulation, and production of reactive oxygen species. Moreover, IgA depletion from resistant serum significantly reduced binding of OSP-specific antibodies to FcαR and antibody-mediated activation of neutrophils and monocytes. INTERPRETATION Our findings suggest that OSP-specific functional IgA responses contribute to protective immunity against Shigella infection in a high-burden setting. These findings will assist in the development and evaluation of Shigella vaccines. FUNDING US National Institutes of Health.
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Affiliation(s)
- Biana Bernshtein
- Ragon Institute of Mass General, MIT, and Harvard, Cambridge, MA, USA.
| | - Meagan Kelly
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, MA, USA; Department of Medicine, Harvard Medical School, Boston, MA, USA
| | - Deniz Cizmeci
- Ragon Institute of Mass General, MIT, and Harvard, Cambridge, MA, USA
| | - Julia A Zhiteneva
- Ragon Institute of Mass General, MIT, and Harvard, Cambridge, MA, USA
| | - Ryan Macvicar
- Ragon Institute of Mass General, MIT, and Harvard, Cambridge, MA, USA
| | - Mohammad Kamruzzaman
- International Centre for Diarrheal Disease Research Bangladesh (icddr,b), Dhaka, Bangladesh; Department of Biochemistry and Molecular Biology, Mawlana Bhashani Science and Technology University, Tangail, Bangladesh
| | - Taufiqur R Bhuiyan
- International Centre for Diarrheal Disease Research Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Fahima Chowdhury
- International Centre for Diarrheal Disease Research Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Ashraful Islam Khan
- International Centre for Diarrheal Disease Research Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Firdausi Qadri
- International Centre for Diarrheal Disease Research Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Richelle C Charles
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, MA, USA; Department of Medicine, Harvard Medical School, Boston, MA, USA; Department of Immunology and Infectious Diseases, Harvard T H Chan School of Public Health, Boston, MA, USA
| | - Peng Xu
- National Institute of Diabetes and Digestive and Kidney Diseases, Laboratory of Bioorganic Chemistry, National Institutes of Health, Bethesda, MD, USA
| | - Pavol Kováč
- National Institute of Diabetes and Digestive and Kidney Diseases, Laboratory of Bioorganic Chemistry, National Institutes of Health, Bethesda, MD, USA
| | - Kristen A Clarkson
- Department of Diarrheal Disease Research, Bacterial Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, MD, USA
| | - Robert W Kaminski
- Department of Diarrheal Disease Research, Bacterial Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, MD, USA; Latham BioPharm Group, Cambridge, MA, USA
| | - Galit Alter
- Ragon Institute of Mass General, MIT, and Harvard, Cambridge, MA, USA
| | - Edward T Ryan
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, MA, USA; Department of Medicine, Harvard Medical School, Boston, MA, USA; Department of Immunology and Infectious Diseases, Harvard T H Chan School of Public Health, Boston, MA, USA
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McCraw AJ, Palhares LCGF, Hendel JL, Gardner RA, Santaolalla A, Crescioli S, McDonnell J, Van Hemelrijck M, Chenoweth A, Spencer DIR, Wagner GK, Karagiannis SN. IgE glycosylation and impact on structure and function: A systematic review. Allergy 2024. [PMID: 39099223 DOI: 10.1111/all.16259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 06/20/2024] [Accepted: 07/21/2024] [Indexed: 08/06/2024]
Abstract
The impact of human IgE glycosylation on structure, function and disease mechanisms is not fully elucidated, and heterogeneity in different studies renders drawing conclusions challenging. Previous reviews discussed IgE glycosylation focusing on specific topics such as health versus disease, FcεR binding or impact on function. We present the first systematic review of human IgE glycosylation conducted utilizing the PRISMA guidelines. We sought to define the current consensus concerning the roles of glycosylation on structure, biology and disease. Despite diverse analytical methodologies, source, expression systems and the sparsity of data on IgE antibodies from non-allergic individuals, collectively evidence suggests differential glycosylation profiles, particularly in allergic diseases compared with healthy states, and indicates functional impact, and contributions to IgE-mediated hypersensitivities and atopic diseases. Beyond allergic diseases, dysregulated terminal glycan structures, including sialic acid, may regulate IgE metabolism. Glycan sites such as N394 may contribute to stabilizing IgE structure, with alterations in these glycans likely influencing both structure and IgE-FcεR interactions. This systematic review therefore highlights critical IgE glycosylation attributes in health and disease that may be exploitable for therapeutic intervention, and the need for novel analytics to explore pertinent research avenues.
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Affiliation(s)
- Alexandra J McCraw
- St. John's Institute of Dermatology, School of Basic & Medical Biosciences & KHP Centre for Translational Medicine, Guy's Hospital, King's College London, London, UK
| | - Lais C G F Palhares
- St. John's Institute of Dermatology, School of Basic & Medical Biosciences & KHP Centre for Translational Medicine, Guy's Hospital, King's College London, London, UK
| | - Jenifer L Hendel
- Department of Chemistry, Trent University, Peterborough, Ontario, Canada
| | | | - Aida Santaolalla
- Translational Oncology & Urology Research (TOUR), School of Cancer and Pharmaceutical Sciences, King's College, London, UK
| | - Silvia Crescioli
- St. John's Institute of Dermatology, School of Basic & Medical Biosciences & KHP Centre for Translational Medicine, Guy's Hospital, King's College London, London, UK
| | - James McDonnell
- Randall Centre for Cell and Molecular Biophysics, School of Basic & Medical Biosciences, King's College London, London, UK
| | - Mieke Van Hemelrijck
- Translational Oncology & Urology Research (TOUR), School of Cancer and Pharmaceutical Sciences, King's College, London, UK
| | - Alicia Chenoweth
- St. John's Institute of Dermatology, School of Basic & Medical Biosciences & KHP Centre for Translational Medicine, Guy's Hospital, King's College London, London, UK
- Breast Cancer Now Research Unit, School of Cancer & Pharmaceutical Sciences, Guy's Cancer Centre, King's College London, London, UK
| | | | - Gerd K Wagner
- St. John's Institute of Dermatology, School of Basic & Medical Biosciences & KHP Centre for Translational Medicine, Guy's Hospital, King's College London, London, UK
- School of Pharmacy, Medical Biology Centre, Queen's University Belfast, Belfast, UK
| | - Sophia N Karagiannis
- St. John's Institute of Dermatology, School of Basic & Medical Biosciences & KHP Centre for Translational Medicine, Guy's Hospital, King's College London, London, UK
- Breast Cancer Now Research Unit, School of Cancer & Pharmaceutical Sciences, Guy's Cancer Centre, King's College London, London, UK
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265
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Fabros D, Charerntantanakul W. Knock down of transforming growth factor beta improves expressions of co-stimulatory molecules, type I interferon-regulated genes, and pro-inflammatory cytokine in PRRSV-inoculated monocyte-derived macrophages. BMC Vet Res 2024; 20:344. [PMID: 39097704 PMCID: PMC11297646 DOI: 10.1186/s12917-023-03760-8] [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: 02/09/2023] [Accepted: 09/28/2023] [Indexed: 08/05/2024] Open
Abstract
Porcine reproductive and respiratory syndrome virus (PRRSV) induces a poor innate immune response following infection. This study evaluates the effects of transforming growth factor beta 1 (TGFβ1) up-regulated by PRRSV on gene expressions of co-stimulatory molecules, type I interferon (IFN), type I IFN-regulated genes (IRGs), pattern recognition receptors, and pro-inflammatory cytokines in PRRSV-inoculated monocyte-derived macrophages (MDMs). Phosphorothioate-modified antisense oligodeoxynucleotides (AS ODNs) specific to various regions of porcine TGFβ1 mRNA were synthesized, and those specific to the AUG region efficiently knockdown TGFβ1 mRNA expression and protein translation. Transfection of TGFβAS ODNs in MDMs inoculated with either classical PRRSV-2 (cPRRSV-2) or highly pathogenic PRRSV-2 (HP-PRRSV-2) significantly reduced TGFβ1 mRNA expression and significantly increased mRNA expressions of CD80, CD86, IFNβ, IRGs (i.e. IFN regulatory factor 3 (IRF3), IRF7, myxovirus resistance 1, osteopontin, and stimulator of IFN genes), Toll-like receptor 3, and tumor necrosis factor-alpha. Transfection of TGFβAS ODNs in MDMs inoculated with HP-PRRSV-2 also significantly increased mRNA expressions of IFNα, IFNγ, and 2'-5'-oligoadenylate synthetase 1. The quantity of PRRSV-2 RNA copy numbers was significantly reduced in MDMs transfected with TGFβAS ODNs as compared to untransfected MDMs. Recombinant porcine TGFβ1 (rTGFβ1) and recombinant porcine IFNα (rIFNα) sustained and reduced the yields of PRRSV-2 RNA copy numbers in PRRSV-2 inoculated MDMs, respectively. These findings demonstrate a strategy of PRRSV for innate immune suppression via an induction of TGFβ expression. These findings also suggest TGFβ as a potential parameter that future PRRSV vaccine and vaccine adjuvant candidates should take into consideration.
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Affiliation(s)
- Dante Fabros
- Research Laboratory for Immunity Enhancement in Humans and Domestic Animals, Program of Biotechnology, Faculty of Science, Maejo University, Chiang Mai, 50290, Chiang Mai, Thailand
| | - Wasin Charerntantanakul
- Research Laboratory for Immunity Enhancement in Humans and Domestic Animals, Program of Biotechnology, Faculty of Science, Maejo University, Chiang Mai, 50290, Chiang Mai, Thailand.
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266
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Hou Z, Yu T, Yi Q, Du Y, Zhou L, Zhao Y, Wu Y, Wu L, Wang T, Bian P. High-complexity of DNA double-strand breaks is key for alternative end-joining choice. Commun Biol 2024; 7:936. [PMID: 39095441 PMCID: PMC11297215 DOI: 10.1038/s42003-024-06640-5] [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: 01/30/2024] [Accepted: 07/26/2024] [Indexed: 08/04/2024] Open
Abstract
The repair of DNA double-strand breaks (DSBs) through alternative non-homologous end-joining (alt-NHEJ) pathway significantly contributes to genetic instability. However, the mechanism governing alt-NHEJ pathway choice, particularly its association with DSB complexity, remains elusive due to the absence of a suitable reporter system. In this study, we established a unique Escherichia coli reporter system for detecting complex DSB-initiated alternative end-joining (A-EJ), an alt-NHEJ-like pathway. By utilizing various types of ionizing radiation to generate DSBs with varying degrees of complexity, we discovered that high complexity of DSBs might be a determinant for A-EJ choice. To facilitate efficient repair of high-complexity DSBs, A-EJ employs distinct molecular patterns such as longer micro-homologous junctions and non-templated nucleotide addition. Furthermore, the A-EJ choice is modulated by the degree of homology near DSB loci, competing with homologous recombination machinery. These findings further enhance the understanding of A-EJ/alt-NHEJ pathway choice.
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Affiliation(s)
- Zhiyang Hou
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, China
- University of Science and Technology of China, Hefei, China
| | - Tianxiang Yu
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, China
- University of Science and Technology of China, Hefei, China
| | - Qiyi Yi
- Teaching and Research Section of Nuclear Medicine, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Yan Du
- Biophysics Group, Biomedical Center, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
| | - Libin Zhou
- Biophysics Group, Biomedical Center, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
| | - Ye Zhao
- Teaching and Research Section of Nuclear Medicine, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Yuejin Wu
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, China
| | - Lijun Wu
- Institute of Physical Science and Information Technology, Anhui University, Hefei, China
| | - Ting Wang
- Teaching and Research Section of Nuclear Medicine, School of Basic Medical Sciences, Anhui Medical University, Hefei, China.
| | - Po Bian
- Teaching and Research Section of Nuclear Medicine, School of Basic Medical Sciences, Anhui Medical University, Hefei, China.
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267
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Madrigal A, Lu T, Soto LM, Najafabadi HS. A unified model for interpretable latent embedding of multi-sample, multi-condition single-cell data. Nat Commun 2024; 15:6573. [PMID: 39097589 PMCID: PMC11298001 DOI: 10.1038/s41467-024-50963-0] [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: 09/03/2023] [Accepted: 07/23/2024] [Indexed: 08/05/2024] Open
Abstract
Single-cell analysis across multiple samples and conditions requires quantitative modeling of the interplay between the continuum of cell states and the technical and biological sources of sample-to-sample variability. We introduce GEDI, a generative model that identifies latent space variations in multi-sample, multi-condition single-cell datasets and attributes them to sample-level covariates. GEDI enables cross-sample cell state mapping on par with state-of-the-art integration methods, cluster-free differential gene expression analysis along the continuum of cell states, and machine learning-based prediction of sample characteristics from single-cell data. GEDI can also incorporate gene-level prior knowledge to infer pathway and regulatory network activities in single cells. Finally, GEDI extends all these concepts to previously unexplored modalities that require joint consideration of dual measurements, such as the joint analysis of exon inclusion/exclusion reads to model alternative cassette exon splicing, or spliced/unspliced reads to model the mRNA stability landscapes of single cells.
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Affiliation(s)
- Ariel Madrigal
- Department of Human Genetics, McGill University, Montreal, QC, H3A 0C7, Canada
- Victor P. Dahdaleh Institute of Genomic Medicine, Montreal, QC, H3A 0G1, Canada
| | - Tianyuan Lu
- Lady Davis Institute for Medical Research, Montreal, QC, H3T 1E2, Canada
- Department of Statistical Sciences, University of Toronto, Toronto, ON, M5S 1A1, Canada
- Department of Population Health Sciences, University of Wisconsin-Madison, Madison, WI, 53726, USA
| | - Larisa M Soto
- Department of Human Genetics, McGill University, Montreal, QC, H3A 0C7, Canada
- Victor P. Dahdaleh Institute of Genomic Medicine, Montreal, QC, H3A 0G1, Canada
| | - Hamed S Najafabadi
- Department of Human Genetics, McGill University, Montreal, QC, H3A 0C7, Canada.
- Victor P. Dahdaleh Institute of Genomic Medicine, Montreal, QC, H3A 0G1, Canada.
- McGill Centre for RNA Sciences, McGill University, Montreal, Canada.
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268
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Ayten M, Straub T, Kaplan L, Hauck SM, Grosche A, Koch SF. CD44 signaling in Müller cells impacts photoreceptor function and survival in healthy and diseased retinas. J Neuroinflammation 2024; 21:190. [PMID: 39095775 PMCID: PMC11297696 DOI: 10.1186/s12974-024-03175-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Accepted: 07/15/2024] [Indexed: 08/04/2024] Open
Abstract
Retinitis pigmentosa (RP), an inherited retinal disease, affects 1,5 million people worldwide. The initial mutation-driven photoreceptor degeneration leads to chronic inflammation, characterized by Müller cell activation and upregulation of CD44. CD44 is a cell surface transmembrane glycoprotein and the primary receptor for hyaluronic acid. It is involved in many pathological processes, but little is known about CD44's retinal functions. CD44 expression is also increased in Müller cells from our Pde6bSTOP/STOP RP mouse model. To gain a more detailed understanding of CD44's role in healthy and diseased retinas, we analyzed Cd44-/- and Cd44-/-Pde6bSTOP/STOP mice, respectively. The loss of CD44 led to enhanced photoreceptor degeneration, reduced retinal function, and increased inflammatory response. To understand the underlying mechanism, we performed proteomic analysis on isolated Müller cells from Cd44-/- and Cd44-/-Pde6bSTOP/STOP retinas and identified a significant downregulation of glutamate transporter 1 (SLC1A2). This downregulation was accompanied by higher glutamate levels, suggesting impaired glutamate homeostasis. These novel findings indicate that CD44 stimulates glutamate uptake via SLC1A2 in Müller cells, which in turn, supports photoreceptor survival and function.
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Affiliation(s)
- Monika Ayten
- Department of Pharmacy, Center for Drug Research, Ludwig-Maximilians-Universität München, Munich, 81377, Germany
| | - Tobias Straub
- Bioinformatics Unit, Biomedical Center Munich, Ludwig-Maximilians-Universität München, Planegg-Martinsried, 82152, Germany
| | - Lew Kaplan
- Department of Physiological Genomics, Biomedical Center Munich, Ludwig-Maximilians-Universität München, Planegg-Martinsried, 82152, Germany
| | - Stefanie M Hauck
- Metabolomics and Proteomics Core, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Antje Grosche
- Department of Physiological Genomics, Biomedical Center Munich, Ludwig-Maximilians-Universität München, Planegg-Martinsried, 82152, Germany
| | - Susanne F Koch
- Department of Pharmacy, Center for Drug Research, Ludwig-Maximilians-Universität München, Munich, 81377, Germany.
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Rusiñol L, Puig L. A Narrative Review of the IL-18 and IL-37 Implications in the Pathogenesis of Atopic Dermatitis and Psoriasis: Prospective Treatment Targets. Int J Mol Sci 2024; 25:8437. [PMID: 39126010 PMCID: PMC11312859 DOI: 10.3390/ijms25158437] [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: 06/16/2024] [Revised: 07/30/2024] [Accepted: 08/01/2024] [Indexed: 08/12/2024] Open
Abstract
Atopic dermatitis and psoriasis are prevalent inflammatory skin conditions that significantly impact the quality of life of patients, with diverse treatment options available. Despite advances in understanding their underlying mechanisms, recent research highlights the significance of interleukins IL-18 and IL-37, in Th1, Th2, and Th17 inflammatory responses, closely associated with the pathogenesis of psoriasis and atopic dermatitis. Hence, IL-18 and IL-37 could potentially become therapeutic targets. This narrative review synthesizes knowledge on these interleukins, their roles in atopic dermatitis and psoriasis, and emerging treatment strategies. Findings of a literature search up to 30 May 2024, underscore a research gap in IL-37-targeted therapies. Conversely, IL-18-focused treatments have demonstrated promise in adult-onset Still's Disease, warranting further exploration for their potential efficacy in psoriasis and atopic dermatitis.
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Affiliation(s)
- Lluís Rusiñol
- Dermatology Department, Hospital de la Santa Creu i Sant Pau, 08025 Barcelona, Spain;
- Institut de Recerca Sant Pau (IR Sant Pau), Sant Quintí 77-79, 08041 Barcelona, Spain
- Unitat Docent Hospital Universitari Sant Pau, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Lluís Puig
- Dermatology Department, Hospital de la Santa Creu i Sant Pau, 08025 Barcelona, Spain;
- Institut de Recerca Sant Pau (IR Sant Pau), Sant Quintí 77-79, 08041 Barcelona, Spain
- Unitat Docent Hospital Universitari Sant Pau, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
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270
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Sutanto H, Safira A, Fetarayani D. From tumor to tolerance: A comprehensive review of immune checkpoint inhibitors and immune-related adverse events. Asia Pac Allergy 2024; 14:124-138. [PMID: 39220570 PMCID: PMC11365684 DOI: 10.5415/apallergy.0000000000000146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Accepted: 05/02/2024] [Indexed: 09/04/2024] Open
Abstract
The advent of immune checkpoint inhibitors (ICIs) has revolutionized the treatment landscape for various malignancies by harnessing the body's immune system to target cancer cells. However, their widespread use has unveiled a spectrum of immune-related adverse events, highlighting a critical balance between antitumor immunity and autoimmunity. This review article delves into the molecular immunology of ICIs, mapping the journey from their therapeutic action to the unintended induction of immune-related adverse events. We provide a comprehensive overview of all available ICIs, including cytotoxic T-lymphocyte-associated protein 4, programmed cell death protein 1, programmed death-ligand 1 inhibitors, and emerging targets, discussing their mechanisms of action, clinical applications, and the molecular underpinnings of associated immune-related adverse events. Special attention is given to the activation of autoreactive T cells, B cells, cytokine release, and the inflammatory cascade, which together contribute to the development of immune-related adverse events. Through a molecular lens, we explore the clinical manifestations of immune-related adverse events across organ systems, offering insights into diagnosis, management, and strategies to mitigate these adverse effects. The review underscores the importance of understanding the delicate interplay between enhancing antitumor responses and minimizing immune-related adverse events, aiming to guide future research and the development of next-generation ICIs with improved drug safety profiles.
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Affiliation(s)
- Henry Sutanto
- Internal Medicine Study Program, Department of Internal Medicine, Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia
- Department of Internal Medicine, Dr. Soetomo General Academic Hospital, Surabaya, Indonesia
| | - Ardea Safira
- Internal Medicine Study Program, Department of Internal Medicine, Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia
- Department of Internal Medicine, Dr. Soetomo General Academic Hospital, Surabaya, Indonesia
| | - Deasy Fetarayani
- Internal Medicine Study Program, Department of Internal Medicine, Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia
- Department of Internal Medicine, Dr. Soetomo General Academic Hospital, Surabaya, Indonesia
- Division of Allergy and Clinical Immunology, Department of Internal Medicine, Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia
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271
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Chowdhury S, Chakraborty MP, Roy S, Dey BP, Gangopadhyay K, Das R. E41K mutation activates Bruton's tyrosine kinase by stabilizing an inositol hexakisphosphate-dependent invisible dimer. J Biol Chem 2024; 300:107535. [PMID: 38971313 PMCID: PMC11338949 DOI: 10.1016/j.jbc.2024.107535] [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: 01/24/2024] [Revised: 06/19/2024] [Accepted: 06/21/2024] [Indexed: 07/08/2024] Open
Abstract
Bruton's tyrosine kinase (BTK) regulates diverse cellular signaling of the innate and adaptive immune system in response to microbial pathogens. Downregulation or constitutive activation of BTK is reported in patients with autoimmune diseases or various B-cell leukemias. BTK is a multidomain protein tyrosine kinase that adopts an Src-like autoinhibited conformation maintained by the interaction between the kinase and PH-TH domains. The PH-TH domain plays a central role in regulating BTK function. BTK is activated by binding to PIP3 at the plasma membrane upon stimulation by the B-cell receptor (BCR). The PIP3 binding allows dimerization of the PH-TH domain and subsequent transphosphorylation of the activation loop. Alternatively, a recent study shows that the multivalent T-cell-independent (TI) antigen induces BCR response by activating BTK independent of PIP3 binding. It was proposed that a transiently stable IP6-dependent PH-TH dimer may activate BTK during BCR activation by the TI antigens. However, no IP6-dependent PH-TH dimer has been identified yet. Here, we investigated a constitutively active PH-TH mutant (E41K) to determine if the elusive IP6-dependent PH-TH dimer exists. We showed that the constitutively active E41K mutation activates BTK by stabilizing the IP6-dependent PH-TH dimer. We observed that a downregulating mutation in the PH-TH domain (R28H) linked to X-linked agammaglobulinemia impairs BTK activation at the membrane and in the cytosol by preventing PH-TH dimerization. We conclude that the IP6 dynamically remodels the BTK active fraction between the membrane and the cytoplasm. Stimulating with IP6 increases the cytosolic fraction of the activated BTK.
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Affiliation(s)
- Subhankar Chowdhury
- Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, India
| | - Manas Pratim Chakraborty
- Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, India
| | - Swarnendu Roy
- Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, India
| | - Bipra Prasad Dey
- Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, India
| | - Kaustav Gangopadhyay
- Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, India
| | - Rahul Das
- Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, India; Centre for Advanced Functional Materials, Indian Institute of Science Education and Research Kolkata, Mohanpur, India.
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272
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Yin Y, Feng W, Chen J, Chen X, Wang G, Wang S, Xu X, Nie Y, Fan D, Wu K, Xia L. Immunosuppressive tumor microenvironment in the progression, metastasis, and therapy of hepatocellular carcinoma: from bench to bedside. Exp Hematol Oncol 2024; 13:72. [PMID: 39085965 PMCID: PMC11292955 DOI: 10.1186/s40164-024-00539-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 07/10/2024] [Indexed: 08/02/2024] Open
Abstract
Hepatocellular carcinoma (HCC) is a highly heterogeneous malignancy with high incidence, recurrence, and metastasis rates. The emergence of immunotherapy has improved the treatment of advanced HCC, but problems such as drug resistance and immune-related adverse events still exist in clinical practice. The immunosuppressive tumor microenvironment (TME) of HCC restricts the efficacy of immunotherapy and is essential for HCC progression and metastasis. Therefore, it is necessary to elucidate the mechanisms behind immunosuppressive TME to develop and apply immunotherapy. This review systematically summarizes the pathogenesis of HCC, the formation of the highly heterogeneous TME, and the mechanisms by which the immunosuppressive TME accelerates HCC progression and metastasis. We also review the status of HCC immunotherapy and further discuss the existing challenges and potential therapeutic strategies targeting immunosuppressive TME. We hope to inspire optimizing and innovating immunotherapeutic strategies by comprehensively understanding the structure and function of immunosuppressive TME in HCC.
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Affiliation(s)
- Yue Yin
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, 710032, Shaanxi Province, China
| | - Weibo Feng
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, 710032, Shaanxi Province, China
| | - Jie Chen
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, 710032, Shaanxi Province, China
| | - Xilang Chen
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, 710032, Shaanxi Province, China
| | - Guodong Wang
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, 710032, Shaanxi Province, China
| | - Shuai Wang
- Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, China
| | - Xiao Xu
- Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, China
| | - Yongzhan Nie
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, 710032, Shaanxi Province, China.
| | - Daiming Fan
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, 710032, Shaanxi Province, China.
| | - Kaichun Wu
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, 710032, Shaanxi Province, China.
| | - Limin Xia
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, 710032, Shaanxi Province, China.
- Department of Gastroenterology, Institute of Liver and Gastrointestinal Diseases, Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei Province, China.
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273
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Malik NA, Nazir N, Manzoor M, Gull F. Fungicide-albumin interactions: unraveling the complex relationship-a comprehensive review. Biophys Rev 2024; 16:417-439. [PMID: 39309131 PMCID: PMC11415336 DOI: 10.1007/s12551-024-01190-w] [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: 12/14/2023] [Accepted: 04/03/2024] [Indexed: 09/25/2024] Open
Abstract
This review will give an insight into the interactions of serum albumins, which are proteins found in the blood, with fungicides. There are molecular interactions between several fungicides and two serum albumin proteins: human serum albumin (HSA) and bovine serum albumin (BSA). The main objective of this review is to through some light on the interactions of the fungicides with serum albumins and to highlight their toxicity level. The interactions of serum albumins with fungicides are complex and can be affected by the properties of the proteins themselves. This review provides valuable insight into the interactions between serum albumins and fungicides, which can help to know the efficacy and mechanism of fungicides and may help in designing new fungicides with low or no toxicity.
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Affiliation(s)
- Nisar Ahmad Malik
- Department of Chemistry, Islamic University of Science and Technology, Awantipora, Pulwama, Jammu and Kashmir India
| | - Nighat Nazir
- Department of Chemistry, Islamic University of Science and Technology, Awantipora, Pulwama, Jammu and Kashmir India
| | - Mehak Manzoor
- Department of Chemistry, Islamic University of Science and Technology, Awantipora, Pulwama, Jammu and Kashmir India
| | - Faizan Gull
- Department of Chemistry, Islamic University of Science and Technology, Awantipora, Pulwama, Jammu and Kashmir India
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274
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Goh JZH, De Hayr L, Khromykh AA, Slonchak A. The Flavivirus Non-Structural Protein 5 (NS5): Structure, Functions, and Targeting for Development of Vaccines and Therapeutics. Vaccines (Basel) 2024; 12:865. [PMID: 39203991 PMCID: PMC11360482 DOI: 10.3390/vaccines12080865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2024] [Revised: 07/20/2024] [Accepted: 07/27/2024] [Indexed: 09/03/2024] Open
Abstract
Flaviviruses, including dengue (DENV), Zika (ZIKV), West Nile (WNV), Japanese encephalitis (JEV), yellow fever (YFV), and tick-borne encephalitis (TBEV) viruses, pose a significant global emerging threat. With their potential to cause widespread outbreaks and severe health complications, the development of effective vaccines and antiviral therapeutics is imperative. The flaviviral non-structural protein 5 (NS5) is a highly conserved and multifunctional protein that is crucial for viral replication, and the NS5 protein of many flaviviruses has been shown to be a potent inhibitor of interferon (IFN) signalling. In this review, we discuss the functions of NS5, diverse NS5-mediated strategies adopted by flaviviruses to evade the host antiviral response, and how NS5 can be a target for the development of vaccines and antiviral therapeutics.
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Affiliation(s)
| | | | | | - Andrii Slonchak
- Australian Infectious Diseases Research Center, School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia; (J.Z.H.G.); (L.D.H.); (A.A.K.)
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275
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Marshall S, Navarro MVAS, Ascenҫão CFR, Dibitetto D, Smolka MB. In-depth mapping of DNA-PKcs signaling uncovers noncanonical features of its kinase specificity. J Biol Chem 2024; 300:107513. [PMID: 38945450 PMCID: PMC11327452 DOI: 10.1016/j.jbc.2024.107513] [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: 01/30/2024] [Revised: 06/11/2024] [Accepted: 06/25/2024] [Indexed: 07/02/2024] Open
Abstract
DNA-PKcs is a DNA damage sensor kinase with established roles in DNA double-strand break repair via nonhomologous end joining. Recent studies have revealed additional roles of DNA-PKcs in the regulation of transcription, translation, and DNA replication. However, the substrates through which DNA-PKcs regulates these processes remain largely undefined. Here, we utilized quantitative phosphoproteomics to generate a high coverage map of DNA-PKcs signaling in response to ionizing radiation and mapped its interplay with the ATM kinase. Beyond the detection of the canonical S/T-Q phosphorylation motif, we uncovered a noncanonical mode of DNA-PKcs signaling targeting S/T-ψ-D/E motifs. Sequence and structural analyses of the DNA-PKcs substrate recognition pocket revealed unique features compared to closely related phosphatidylinositol 3-kinase-related kinases that may explain its broader substrate preference. These findings expand the repertoire of DNA-PKcs and ATM substrates while establishing a novel preferential phosphorylation motif for DNA-PKcs.
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Affiliation(s)
- Shannon Marshall
- Weill Institute for Cell and Molecular Biology, Department of Molecular Biology and Genetics, Cornell University, Ithaca, New York, USA
| | - Marcos V A S Navarro
- Weill Institute for Cell and Molecular Biology, Department of Molecular Biology and Genetics, Cornell University, Ithaca, New York, USA; IFSC Institute of Physics of São Carlos, University of São Paulo, São Carlos, São Paulo, Brazil.
| | - Carolline F R Ascenҫão
- Weill Institute for Cell and Molecular Biology, Department of Molecular Biology and Genetics, Cornell University, Ithaca, New York, USA
| | - Diego Dibitetto
- Weill Institute for Cell and Molecular Biology, Department of Molecular Biology and Genetics, Cornell University, Ithaca, New York, USA; Department of Experimental Oncology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Marcus B Smolka
- Weill Institute for Cell and Molecular Biology, Department of Molecular Biology and Genetics, Cornell University, Ithaca, New York, USA.
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276
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An J, Guo R, Liu M, Hu H, Zhang H. Multi-modal Ca 2+ nanogenerator via reversing T cell exhaustion for enhanced chemo-immunotherapy. J Control Release 2024; 372:715-727. [PMID: 38955253 DOI: 10.1016/j.jconrel.2024.06.066] [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: 03/20/2024] [Revised: 06/26/2024] [Accepted: 06/28/2024] [Indexed: 07/04/2024]
Abstract
Chemo-immunotherapy holds the advantage of specific antitumor effects by activating cytotoxic lymphocyte cells (CTLs) immune response. However, multiple barriers have limited the outcomes partly due to tumor-cell-mediated exhaustion of CTLs in the immunosuppressive tumor microenvironment (iTME). Here, we rationally designed a simple-yet-versatile Ca2+ nanogenerator to modulate iTME for enhancing 2-deoxyglucose (2-DG) mediated chemo-immunotherapy. Briefly, after 2-DG chemotherapy, CaO2 nanoparticles coated with EL4 cell membrane (denoted as CaNP@ECM) could preferentially accumulate in tumor tissue via adhesion between LFA-1 on EL4 cell membrane and ICAM-1 on inflamed endothelial cell in tumor tissues and display a series of benefits for CTLs: i) Increasing glucose availability of CTLs while reducing lactic acid secretion through Ca2+ overloading mediated inhibition of tumor cell glycolysis, as well as relieving hypoxia; ii) Reversing CTLs exhaustion via TGF-β1 scavenging and PD-L1 blockade through PD-1 and TGF-β1R on EL4 cell membrane; iii) Boosting tumor immunotherapy via immunologic death (ICD) of tumor cells induced by Ca2+ overloading. We demonstrate that the multi-modal Ca2+ nanogenerator rescues T cells from exhaustion and inhibits tumor growth both in vitro and in vivo. More importantly, the study also facilitate the development of glucose metabolism inhibition-based tumor immunotherapy via Ca2+ overloading.
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Affiliation(s)
- Jingyi An
- Nanozyme Laboratory in Zhongyuan, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Rong Guo
- School of Pharmaceutical Sciences, Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases, Zhengzhou University, Zhengzhou 450001, China
| | - Mengyuan Liu
- School of Pharmaceutical Sciences, Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases, Zhengzhou University, Zhengzhou 450001, China
| | - Haiying Hu
- School of Pharmaceutical Sciences, Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases, Zhengzhou University, Zhengzhou 450001, China
| | - Hongling Zhang
- School of Pharmaceutical Sciences, Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases, Zhengzhou University, Zhengzhou 450001, China.
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277
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El-Shoura EAM, Hassanein EHM, Taha HH, Shalkami AGS, Hassanein MMH, Ali FEM, Bakr AG. Edaravone and obeticholic acid protect against cisplatin-induced heart toxicity by suppressing oxidative stress and inflammation and modulating Nrf2, TLR4/p38MAPK, and JAK1/STAT3/NF-κB signals. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024; 397:5649-5662. [PMID: 38285279 PMCID: PMC11329704 DOI: 10.1007/s00210-024-02956-5] [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: 10/21/2023] [Accepted: 01/15/2024] [Indexed: 01/30/2024]
Abstract
Cardiotoxicity is a significant adverse effect of cisplatin (CIS) that necessitates extensive medical care. The current study examines the cardioprotective effects of edaravone (EDV), obeticholic acid (OCA), and their combinations on CIS-induced cardiac damage. Rats were allocated into five groups: the normal control group, the remaining four groups received CIS (7.5 mg/kg, i.p.) as a single dose on the fifth day and were assigned to CIS, OCA (10 mg/kg/day) + CIS, EDV (20 mg/kg/day) + CIS, and the (EDV + OCA) + CIS group. Compared to the CIS-treated group, co-treating rats with EDV, OCA, or their combinations significantly decreased ALP, AST, LDH, CK-MB, and troponin-I serum levels and alleviated histopathological heart abnormalities. Biochemically, EDV, OCA, and EDV plus OCA administration mitigated cardiac oxidative stress as indicated by a marked decrease in heart MDA content with a rise in cardiac antioxidants SOD and GSH associated with upregulating Nrf2, PPARγ, and SIRT1 expression. Besides, it dampened inflammation by decreasing cardiac levels of TNF-α, IL-1β, and IL-6, mediated by suppressing NF-κB, JAK1/STAT3, and TLR4/p38MAPK signal activation. Notably, rats co-administered with EDV plus OCA showed noticeable protection that exceeded that of EDV and OCA alone. In conclusion, our study provided that EDV, OCA, and their combinations effectively attenuated CIS-induced cardiac intoxication by activating Nrf2, PPARγ, and SIRT1 signals and downregulating NF-κB, JAK1/STAT3, and TLR4/p38MAPK signals.
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Affiliation(s)
- Ehab A M El-Shoura
- Department of Clinical Pharmacy, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, Egypt
| | - Emad H M Hassanein
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, 71524, Egypt
| | - Hesham H Taha
- Biochemistry and Molecular Biology Department, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, Egypt
| | - Abdel-Gawad S Shalkami
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, 71524, Egypt
- Clinical Pharmacy Program, Faculty of Health Science and Nursing, Al-Rayan Colleges, Medina, Kingdom of Saudi Arabia
| | | | - Fares E M Ali
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, 71524, Egypt.
| | - Adel G Bakr
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, 71524, Egypt
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278
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Bullock ME, Hogan T, Williams C, Morris S, Nowicka M, Sharjeel M, van Dorp C, Yates AJ, Seddon B. The dynamics and longevity of circulating CD4+ memory T cells depend on cell age and not the chronological age of the host. PLoS Biol 2024; 22:e3002380. [PMID: 39137219 PMCID: PMC11321570 DOI: 10.1371/journal.pbio.3002380] [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: 09/26/2023] [Accepted: 06/24/2024] [Indexed: 08/15/2024] Open
Abstract
Quantifying the kinetics with which memory T cell populations are generated and maintained is essential for identifying the determinants of the duration of immunity. The quality and persistence of circulating CD4 effector memory (TEM) and central memory (TCM) T cells in mice appear to shift with age, but it is unclear whether these changes are driven by the aging host environment, by cell age effects, or both. Here, we address these issues by combining DNA labelling methods, established fate-mapping systems, a novel reporter mouse strain, and mathematical models. Together, these allow us to quantify the dynamics of both young and established circulating memory CD4 T cell subsets, within both young and old mice. We show that that these cells and their descendents become more persistent the longer they reside within the TCM and TEM pools. This behaviour may limit memory CD4 T cell diversity by skewing TCR repertoires towards clones generated early in life, but may also compensate for functional defects in new memory cells generated in old age.
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Affiliation(s)
- M. Elise Bullock
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, New York, United States of America
| | - Thea Hogan
- Institute of Immunity and Transplantation, Division of Infection and Immunity, UCL, Royal Free Hospital, London, United Kingdom
| | - Cayman Williams
- Institute of Immunity and Transplantation, Division of Infection and Immunity, UCL, Royal Free Hospital, London, United Kingdom
| | - Sinead Morris
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, New York, United States of America
| | - Maria Nowicka
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, New York, United States of America
| | - Minahil Sharjeel
- Institute of Immunity and Transplantation, Division of Infection and Immunity, UCL, Royal Free Hospital, London, United Kingdom
| | - Christiaan van Dorp
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, New York, United States of America
| | - Andrew J. Yates
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, New York, United States of America
| | - Benedict Seddon
- Institute of Immunity and Transplantation, Division of Infection and Immunity, UCL, Royal Free Hospital, London, United Kingdom
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279
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Zhou Y, Gong J, Deng X, Shen L, Liu L. Novel insights: crosstalk with non-puerperal mastitis and immunity. Front Immunol 2024; 15:1431681. [PMID: 39148739 PMCID: PMC11324573 DOI: 10.3389/fimmu.2024.1431681] [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: 05/12/2024] [Accepted: 07/16/2024] [Indexed: 08/17/2024] Open
Abstract
The two primary types of non-puerperal mastitis (NPM) are granulomatous lobular mastitis (GLM) and plasma cell mastitis (PCM). Existing research indicates that immune inflammatory response is considered to be the core of the pathogenesis of GLM and PCM, and both innate and adaptive immune responses play an important role in the pathophysiology of PCM and GLM. However, the regulatory balance between various immune cells in these diseases is still unclear. Consequently, we present a comprehensive summary of the immune-related variables and recent advances in GLM and PCM.
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Affiliation(s)
- Yao Zhou
- Department of Galactophore, The First Hospital of Hunan University of Chinese Medicine, Changsha, Hunan, China
- Hunan University of Chinese Medicine, Changsha, Hunan, China
| | - Jie Gong
- Department of Galactophore, The First Hospital of Hunan University of Chinese Medicine, Changsha, Hunan, China
- Hunan University of Chinese Medicine, Changsha, Hunan, China
| | - Xianguang Deng
- Department of Galactophore, The First Hospital of Hunan University of Chinese Medicine, Changsha, Hunan, China
- Hunan University of Chinese Medicine, Changsha, Hunan, China
| | - Lele Shen
- Hunan University of Chinese Medicine, Changsha, Hunan, China
| | - Lifang Liu
- Department of Galactophore, The First Hospital of Hunan University of Chinese Medicine, Changsha, Hunan, China
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280
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González-Domínguez Á, Jurado-Sumariva L, González-Domínguez R. Association between childhood obesity, trace elements, and heavy metals: Recent discoveries and future perspectives. Obes Rev 2024; 25:e13764. [PMID: 38710665 DOI: 10.1111/obr.13764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 03/11/2024] [Accepted: 04/17/2024] [Indexed: 05/08/2024]
Abstract
Trace elements and heavy metals play pivotal roles in health status by regulating a myriad of vital biological functions. Abnormal metal homeostasis has been linked to a constellation of pathogenic complications, including oxidative stress, inflammatory processes, dyslipidemia, and impaired insulin-mediated metabolism of carbohydrates, thereby increasing the odds of developing childhood obesity and related comorbidities. Herein, we provide a comprehensive revision of recent literature on the association between childhood obesity, trace elements, and heavy metals. Further, we emphasize on the crucial importance of addressing the influence that interindividual variability factors (e.g., sex, age, genetic determinants, concomitance of comorbidities, and environmental factors) may have in modulating the susceptibility to disease development. Altogether, this review article represents a concise guide to better understand the involvement of metals in childhood obesity pathogenesis and discusses future needs with the aim of establishing robust biomarkers in the context of precision medicine.
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Affiliation(s)
- Álvaro González-Domínguez
- Instituto de Investigación e Innovación Biomédica de Cádiz (INiBICA), Hospital Universitario Puerta del Mar, Universidad de Cádiz, Cádiz, Spain
| | - Lucía Jurado-Sumariva
- Instituto de Investigación e Innovación Biomédica de Cádiz (INiBICA), Hospital Universitario Puerta del Mar, Universidad de Cádiz, Cádiz, Spain
| | - Raúl González-Domínguez
- Instituto de Investigación e Innovación Biomédica de Cádiz (INiBICA), Hospital Universitario Puerta del Mar, Universidad de Cádiz, Cádiz, Spain
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Li Y, Ma P, Li J, Wu F, Guo M, Zhou E, Song S, Wang S, Zhang S, Jin Y. Dihydroartemisinin restores the immunogenicity and enhances the anticancer immunosurveillance of cisplatin by activating the PERK/eIF2α pathway. Cell Biosci 2024; 14:100. [PMID: 39090653 PMCID: PMC11295430 DOI: 10.1186/s13578-024-01254-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 05/24/2024] [Indexed: 08/04/2024] Open
Abstract
BACKGROUND Immunosurveillance is pivotal in the effectiveness of anticancer therapies and tumor control. The ineffectiveness of cisplatin in activating the immunosurveillance is attributed to its lack of adjuvanticity resulting from its inability to stimulate endoplasmic reticulum stress. Dihydroartemisinin demonstrates the anti-tumor effects through various mechanisms, including the activation of the endoplasmic reticulum stress. This study aimed to develop a novel strategy to enhance the immunogenicity of dying tumor cells by combining cisplatin with dihydroartemisinin, thereby triggering effective anti-tumor immunosurveillance and improving the efficacy of cisplatin in clinical practice. METHODS Lewis lung carcinoma (LLC) and CT26 colon cancer cell lines and subcutaneous tumor models were used in this study. The importance of immunosurveillance was validated in both immunocompetent and immunodeficient mouse models. The ability of dihydroartemisinin and cisplatin therapy to induce immunogenic cell death and tumor growth control in vivo was validated by prophylactic tumor vaccination and therapeutic tumor models. The underlying mechanism was elucidated through the pharmaceutical or genetic intervention of the PERK/eIF2α pathway in vitro and in vivo. RESULTS Dihydroartemisinin enhanced the generation of reactive oxygen species in cisplatin-treated LLC and CT26 cancer cells. The combination treatment of dihydroartemisinin with cisplatin promoted cell death and ensured an optimal release of damage-associated molecular patterns from dying cancer cells, promoting the phagocytosis of dendritic cells. In the tumor vaccination model, we confirmed that dihydroartemisinin plus cisplatin treatment induced immunogenic cell death. Utilizing immunocompetent and immunodeficient mouse models, we further demonstrated that the combination treatment suppressed the tumor growth of CT26 colon cancer and LLC lung cancer, leading to an improved prognosis through the restoration of cytotoxic T lymphocyte responses and reinstatement of anti-cancer immunosurveillance in vivo. Mechanistically, dihydroartemisinin restored the immunogenicity of cisplatin by activating the adjuvanticity of damage-associated molecular patterns, such as calreticulin exposure, through the PERK/eIF2α pathway. Additionally, the inhibition of eIF2α phosphorylation attenuated the anti-tumor efficiency of C + D in vivo. CONCLUSIONS We highlighted that dihydroartemisinin acts as an immunogenic cell death rescuer for cisplatin, activating anticancer immunosurveillance in a PERK/eIF2α-dependent manner and offering a strategy to enhance the anti-tumor efficacy of cisplatin in clinical practice.
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Affiliation(s)
- Yumei Li
- Department of Respiratory and Critical Care Medicine, Hubei Province Clinical Research Center for Major Respiratory Diseases, Key Laboratory of Pulmonary Diseases of National Health Commission, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, Hubei, China
- The Ministry of Education Key Laboratory of Biological Targeted Therapy, Tongji Medical College, Union Hospital, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Engineering Research Center for Tumor-Targeted Biochemotherapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Pei Ma
- Department of Respiratory and Critical Care Medicine, Hubei Province Clinical Research Center for Major Respiratory Diseases, Key Laboratory of Pulmonary Diseases of National Health Commission, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, Hubei, China
- State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Jingxia Li
- Department of Respiratory and Critical Care Medicine, Hubei Province Clinical Research Center for Major Respiratory Diseases, Key Laboratory of Pulmonary Diseases of National Health Commission, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, Hubei, China
- The Ministry of Education Key Laboratory of Biological Targeted Therapy, Tongji Medical College, Union Hospital, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Engineering Research Center for Tumor-Targeted Biochemotherapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Feng Wu
- Department of Respiratory and Critical Care Medicine, Hubei Province Clinical Research Center for Major Respiratory Diseases, Key Laboratory of Pulmonary Diseases of National Health Commission, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, Hubei, China
- The Ministry of Education Key Laboratory of Biological Targeted Therapy, Tongji Medical College, Union Hospital, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Engineering Research Center for Tumor-Targeted Biochemotherapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Mengfei Guo
- Department of Respiratory and Critical Care Medicine, Hubei Province Clinical Research Center for Major Respiratory Diseases, Key Laboratory of Pulmonary Diseases of National Health Commission, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, Hubei, China
- The Ministry of Education Key Laboratory of Biological Targeted Therapy, Tongji Medical College, Union Hospital, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Engineering Research Center for Tumor-Targeted Biochemotherapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - E Zhou
- Department of Respiratory and Critical Care Medicine, Hubei Province Clinical Research Center for Major Respiratory Diseases, Key Laboratory of Pulmonary Diseases of National Health Commission, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, Hubei, China
- The Ministry of Education Key Laboratory of Biological Targeted Therapy, Tongji Medical College, Union Hospital, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Engineering Research Center for Tumor-Targeted Biochemotherapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Siwei Song
- Department of Respiratory and Critical Care Medicine, Hubei Province Clinical Research Center for Major Respiratory Diseases, Key Laboratory of Pulmonary Diseases of National Health Commission, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, Hubei, China
- The Ministry of Education Key Laboratory of Biological Targeted Therapy, Tongji Medical College, Union Hospital, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Engineering Research Center for Tumor-Targeted Biochemotherapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Sufei Wang
- Department of Respiratory and Critical Care Medicine, Hubei Province Clinical Research Center for Major Respiratory Diseases, Key Laboratory of Pulmonary Diseases of National Health Commission, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, Hubei, China
- The Ministry of Education Key Laboratory of Biological Targeted Therapy, Tongji Medical College, Union Hospital, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Engineering Research Center for Tumor-Targeted Biochemotherapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shuai Zhang
- Department of Respiratory and Critical Care Medicine, Hubei Province Clinical Research Center for Major Respiratory Diseases, Key Laboratory of Pulmonary Diseases of National Health Commission, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, Hubei, China.
- The Ministry of Education Key Laboratory of Biological Targeted Therapy, Tongji Medical College, Union Hospital, Huazhong University of Science and Technology, Wuhan, China.
- Hubei Province Engineering Research Center for Tumor-Targeted Biochemotherapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Yang Jin
- Department of Respiratory and Critical Care Medicine, Hubei Province Clinical Research Center for Major Respiratory Diseases, Key Laboratory of Pulmonary Diseases of National Health Commission, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, Hubei, China.
- The Ministry of Education Key Laboratory of Biological Targeted Therapy, Tongji Medical College, Union Hospital, Huazhong University of Science and Technology, Wuhan, China.
- Hubei Province Engineering Research Center for Tumor-Targeted Biochemotherapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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282
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Qi W, Guan W. GPR56: A potential therapeutic target for neurological and psychiatric disorders. Biochem Pharmacol 2024; 226:116395. [PMID: 38942087 DOI: 10.1016/j.bcp.2024.116395] [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: 03/21/2024] [Revised: 06/17/2024] [Accepted: 06/25/2024] [Indexed: 06/30/2024]
Abstract
GPR56, also known as GPR56/ADGRG1, is a member of the ADGRG subgroup belonging to adhesion G protein-coupled receptors (aGPCRs). aGPCRs are the second largest subfamily of the GPCR superfamily, which is the largest family of membrane protein receptors in the human genome. Studies in recent years have demonstrated that GPR56 is integral to the normal development of the brain and functions as an important player in cortical development, suggesting that GPR56 is involved in many physiological processes. Indeed, aberrant expression of GPR56 has been implicated in multiple neurological and psychiatric disorders, including bilateral frontoparietal polymicrogyria (BFPP), depression and epilepsy. In a recent study, it was found that upregulated expression of GPR56 reduced depressive-like behaviours in an animal model of depression, indicating that GPR56 plays an important role in the antidepressant response. Given the link of GPR56 with the antidepressant response, the function of GPR56 has become a focus of research. Although GPR56 may be a potential target for the development of antidepressants, the underlying molecular mechanisms remain largely unknown. Therefore, in this review, we will summarize the latest findings of GPR56 function in neurological and psychiatric disorders (depression, epilepsy, autism, and BFPP) and emphasize the mechanisms of GPR56 in activation and signalling in those conditions. After reviewing several studies, attributing to its significant biological functions and exceptionally long extracellular N-terminus that interacts with multiple ligands, we draw a conclusion that GPR56 may serve as an important drug target for neuropsychological diseases.
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Affiliation(s)
- Wang Qi
- Department of Pharmacology, The First People's Hospital of Yancheng, China
| | - Wei Guan
- Department of Pharmacology, Pharmacy College, Nantong University, China.
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283
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Batchu S, Diaz MJ, Patel A, Reddy A, Lucke-Wold B. Transcriptome-Derived Ligand-Receptor Interactome of Major PitNET Subgroups. J Neurol Surg B Skull Base 2024; 85:340-346. [PMID: 38966297 PMCID: PMC11221903 DOI: 10.1055/a-2088-6594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Accepted: 05/03/2023] [Indexed: 07/06/2024] Open
Abstract
Introduction Pituitary neuroendocrine tumors (PitNETs) are rare skull base tumors which can impart significant disability owing to their locally invasive potential. To date, the gamut of PitNET subtypes remains ill-understood at the ligand-receptor (LR) interactome level, potentially limiting therapeutic options. Here, we present findings from in silico analysis of LR complexes formed by PitNETs with clinical presentations of acromegaly, Cushing's disease, high prolactin production, and without symptoms of hormone hypersecretion. Methods Previously published PitNET gene expression data was acquired from ArrayExpress. These data represented all secretion types. LR interactions were analyzed via a crosstalk score approach. Results Cortisol (CORT) ligand was significantly involved in tumor-to-tumor signaling across all PitNET subtypes but prolactinomas, which evidenced active CORT depletion. Likewise, CCL25 ligand was implicated in 20% of the top LR complex interactions along the tumor-to-stroma signaling axis, but silent PitNETs reported unique depletion of the CCL25 ligand. Along the stroma-to-tumor signaling axis, all clinical PitNET subtypes enriched stromal vasoactive intestinal polypeptide ligand interactions with tumor secretin receptor. All clinical PitNET subtypes enriched stromal DEFB103B (human β-defensin 103B) ligand interactions with stromal chemokine receptors along the stroma-to-stroma signaling axis. In PitNETs causing Cushing's disease, immune checkpoint ligand CD274 reported high stromal expression, and prolactinomas reported low stromal expression. Moreover, prolactinomas evidenced distinctly high stromal expression of immune-exhausted T cell response marker IL10RA compared with other clinical subtypes. Conclusion Relative crosstalk score analysis revealed a great diversity of LR complex interactions across clinical PitNET subtypes and between solid tumor compartments. More data are needed to validate these findings and exact clinical importance.
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Affiliation(s)
- Sai Batchu
- Cooper Medical School, Rowan University, Camden, New Jersey, United States
| | - Michael Joseph Diaz
- College of Medicine, University of Florida, Gainesville, Florida, United States
| | - Aashay Patel
- College of Medicine, University of Florida, Gainesville, Florida, United States
| | - Akshay Reddy
- College of Medicine, University of Florida, Gainesville, Florida, United States
| | - Brandon Lucke-Wold
- Department of Neurosurgery, University of Florida, Gainesville, Florida, United States
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284
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Mozaffari S, Aliari M, Emamgholipour S, Hosseini H, Amirkiasar PR, Zare M, Katsiki N, Panahi G, Sahebkar A. The effect of probiotic consumption on lipid profile, glycemic index, inflammatory markers, and liver function in NAFLD patients: A systematic review and meta-analysis of randomized controlled trials. J Diabetes Complications 2024; 38:108780. [PMID: 38968867 DOI: 10.1016/j.jdiacomp.2024.108780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 05/06/2024] [Accepted: 05/28/2024] [Indexed: 07/07/2024]
Abstract
BACKGROUND-AIM Non-alcoholic fatty liver disease (NAFLD1) is the most frequent chronic liver disorder worldwide. Currently, no pharmacological treatment has been approved for NAFLD. Probiotics have been suggested as a potential therapy for NAFLD. The aim of this systematic review and meta-analysis was to assess the impact of probiotic intake on liver tests, lipids, glycemic parameters and inflammatory markers in NAFLD patients. METHODS We searched electronic databases using related terms. Meta-analysis was performed using random-effects models. Clinical outcomes were presented as standard mean difference (SMD2) with a 95 % confidence interval (CI3). Publication bias and heterogeneity were evaluated in eligible studies. RESULTS Fifteen randomized clinical trials comprising 899 participants were included in our meta-analysis. Probiotic supplementation improved alanine transaminase [SMD -0.796; 95 % CI (-1.419, -0.172); p = 0.012], Homeostatic Model Assessment for Insulin Resistance (HOMA-IR4) [SMD -0.596; 95 % CI (-1.071, -0.121); p = 0.01] and insulin levels [SMD -1.10; 95 % CI (-2.121, -0.087); p = 0.03]. No significant effects were observed on fasting glucose, hemoglobin A1c, aspartate transaminase, lipid profile, interleukin-6 and tumor necrosis factor-α. CONCLUSIONS Probiotic intake may improve insulin sensitivity and alanine transaminase in NAFLD patients.
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Affiliation(s)
- Sadegh Mozaffari
- Department of Clinical Biochemistry, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahdeyeh Aliari
- Department of Clinical Biochemistry, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Solaleh Emamgholipour
- Department of Clinical Biochemistry, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Hossein Hosseini
- Department of Clinical Biochemistry, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Pedram Rezaei Amirkiasar
- Department of Clinical Biochemistry, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mina Zare
- Biochemistry Department, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Niki Katsiki
- Department of Nutritional Sciences and Dietetics, International Hellenic University, 57400 Thessaloniki, Greece; School of Medicine, European University Cyprus, Nicosia 2404, Cyprus.
| | - Ghodratollah Panahi
- Department of Clinical Biochemistry, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
| | - Amirhossein Sahebkar
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
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285
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Dasanu CA, Mann SK, Baidya M, Mdluli XP, Stapleton AE, Codreanu I. Evaluation of infectious morbidity due to BTK inhibitors in indolent B-cell lymphomas: latest research findings and systematic analysis. Expert Opin Pharmacother 2024; 25:1525-1540. [PMID: 39109526 DOI: 10.1080/14656566.2024.2390121] [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: 05/22/2024] [Accepted: 08/05/2024] [Indexed: 08/28/2024]
Abstract
INTRODUCTION Randomized clinical trials (RCTs) have suggested that BTK inhibitors (BTKis) might increase infectious disease (ID) risk. Systematic analysis of this topic as derived from RCTs and clinical practice is needed. AREAS COVERED An extensive Medline, Embase, and Cochrane search of peer-reviewed sources reporting on ID morbidity in patients on BTKis was performed (1 January 2014 - 31 December 2013). Contribution of intrinsic immune defects in indolent B-cell lymphomas to this morbidity was carefully considered. EXPERT OPINION Patients with indolent B-cell lymphomas display a wide range of innate and adaptive immune defects. In addition, BTKi use is linked with an increased signal of upper respiratory tract infections (URTIs) and pneumonias, mainly grade 1-2. These agents also increase the risk of rare invasive fungal infections (IFIs), mainly due to Cryptococcus and Aspergillus spp. with a peak within several months after the start of therapy. More than half of these IFIs are fatal. Research suggests a similar ID risk across 1st, 2nd and 3rd generations of BTKis, all causing B-cell dysfunction due to BTK inhibition, along with off-target functional neutrophil/macrophage alterations. Expanding the knowledge base on ID morbidity in patients on BTKis would facilitate timely diagnosis and treatment, and improve clinical outcomes.
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Affiliation(s)
- Constantin A Dasanu
- Lucy Curci Cancer Center, Eisenhower Health, Rancho Mirage, CA, USA
- Department of Medical Oncology and Hematology, UC San Diego Health System, San Diego, CA, USA
| | - Samar K Mann
- Department of Graduate Medical Education, Oakland William Beaumont School of Medicine, Rochester, MI, USA
| | - Melvin Baidya
- Lucy Curci Cancer Center, Eisenhower Health, Rancho Mirage, CA, USA
| | - Xolani P Mdluli
- Department of Infectious Diseases, Eisenhower Health, Rancho Mirage, CA, USA
| | - Ann E Stapleton
- Department of Infectious Diseases, Eisenhower Health, Rancho Mirage, CA, USA
| | - Ion Codreanu
- Translational Imaging Center, Houston Methodist Research Institute, Houston, TX, USA
- Department of Radiology, Nicolae Testemitanu State University of Medicine and Pharmacy, Chisinau, Republic of Moldova
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286
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Ren J, Yu L, Zhang Q, Ren P, Cai Y, Wang X, Lan K, Wu S. AIMP2 restricts EV71 replication by recruiting SMURF2 to promote the degradation of 3D polymerase. Virol Sin 2024; 39:632-644. [PMID: 38945214 PMCID: PMC11401463 DOI: 10.1016/j.virs.2024.06.009] [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: 03/19/2024] [Accepted: 06/25/2024] [Indexed: 07/02/2024] Open
Abstract
Hand, foot and mouth disease (HFMD), mainly caused by enterovirus 71 (EV71), has frequently occurred in the Asia-Pacific region, posing a significant threat to the health of infants and young children. Therefore, research on the infection mechanism and pathogenicity of enteroviruses is increasingly becoming important. The 3D polymerase, as the most critical RNA-dependent RNA polymerase (RdRp) for EV71 replication, is widely targeted to inhibit EV71 infection. In this study, we identified a novel host protein, AIMP2, capable of binding to 3D polymerase and inhibiting EV71 infection. Subsequent investigations revealed that AIMP2 recruits the E3 ligase SMURF2, which mediates the polyubiquitination and degradation of 3D polymerase. Furthermore, the antiviral effect of AIMP2 extended to the CVA16 and CVB1 serotypes. Our research has uncovered the dynamic regulatory function of AIMP2 during EV71 infection, revealing a novel antiviral mechanism and providing new insights for the development of antienteroviral therapeutic strategies.
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Affiliation(s)
- Junrui Ren
- State Key Laboratory of Virology, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Lei Yu
- State Key Laboratory of Virology, College of Life Sciences, Wuhan University, Wuhan, 430072, China; Medical Research Institute, Wuhan University, Wuhan, 430072, China
| | - Qiuhan Zhang
- State Key Laboratory of Virology, College of Life Sciences, Wuhan University, Wuhan, 430072, China; Medical Research Institute, Wuhan University, Wuhan, 430072, China
| | - Pengyu Ren
- State Key Laboratory of Virology, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Yumeng Cai
- State Key Laboratory of Virology, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Xueyun Wang
- State Key Laboratory of Virology, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Ke Lan
- State Key Laboratory of Virology, College of Life Sciences, Wuhan University, Wuhan, 430072, China; Medical Research Institute, Wuhan University, Wuhan, 430072, China; Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan, 430072, China.
| | - Shuwen Wu
- State Key Laboratory of Virology, College of Life Sciences, Wuhan University, Wuhan, 430072, China.
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287
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Buizza C, Enström A, Carlsson R, Paul G. The Transcriptional Landscape of Pericytes in Acute Ischemic Stroke. Transl Stroke Res 2024; 15:714-728. [PMID: 37378751 PMCID: PMC11226519 DOI: 10.1007/s12975-023-01169-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 06/07/2023] [Accepted: 06/16/2023] [Indexed: 06/29/2023]
Abstract
The current treatment options for ischemic stroke aim to achieve reperfusion but are time critical. Novel therapeutic approaches that can be given beyond the limited time window of 3-4.5 h are still an unmet need to be addressed to improve stroke outcomes. The lack of oxygen and glucose in the area of ischemic injury initiates a pathological cascade leading to blood-brain barrier (BBB) breakdown, inflammation, and neuronal cell death, a process that may be intercepted to limit stroke progression. Pericytes located at the blood/brain interface are one of the first responders to hypoxia in stroke and therefore a potential target cell for early stroke interventions. Using single-cell RNA sequencing in a mouse model of permanent middle cerebral artery occlusion, we investigated the temporal differences in transcriptomic signatures in pericytes at 1, 12, and 24 h after stroke. Our results reveal a stroke-specific subcluster of pericytes that is present at 12 and 24 h and characterized by the upregulation of genes mainly related to cytokine signaling and immune response. This study identifies temporal transcriptional changes in the acute phase of ischemic stroke that reflect the early response of pericytes to the ischemic insult and its secondary consequences and may constitute potential future therapeutic targets.
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Affiliation(s)
- Carolina Buizza
- Translational Neurology Group, Department of Clinical Science, Lund University, 22184, Lund, Sweden
| | - Andreas Enström
- Translational Neurology Group, Department of Clinical Science, Lund University, 22184, Lund, Sweden
| | - Robert Carlsson
- Translational Neurology Group, Department of Clinical Science, Lund University, 22184, Lund, Sweden
| | - Gesine Paul
- Translational Neurology Group, Department of Clinical Science, Lund University, 22184, Lund, Sweden.
- Department of Neurology, Scania University Hospital, 22185, Lund, Sweden.
- Wallenberg Centre for Molecular Medicine, Lund University, 22184, Lund, Sweden.
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288
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Okano S. Immunotherapy for head and neck cancer: Fundamentals and therapeutic development. Auris Nasus Larynx 2024; 51:684-695. [PMID: 38729034 DOI: 10.1016/j.anl.2024.05.001] [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: 12/26/2023] [Revised: 04/03/2024] [Accepted: 05/01/2024] [Indexed: 05/12/2024]
Abstract
Squamous cell carcinoma of the head and neck (SCCHN) has been treated by multidisciplinary therapy consisting of surgery, radiotherapy, and cancer chemotherapy, but the recent advent of immunotherapy has produced significant changes in treatment systems and the results of these therapies. Immunotherapy has greatly improved the outcome of recurrent metastatic SCCHN, and the development of new treatment methods based on immunotherapy is now being applied not only to recurrent metastatic cases but also to locally advanced cases. To understand and practice cancer immunotherapy, it is important to understand the immune environment surrounding cancer, and the changes to which it is subject. Currently, the anti-PD-1 antibody drugs nivolumab and pembrolizumab are the only immunotherapies with proven efficacy in head and neck cancer. However, anti-PD-L1 and anti-CTLA-4 antibody drugs have also been shown to be useful in other types of cancer and are being incorporated into clinical practice. In head and neck cancer, numerous clinical trials have aimed to improve efficacy and safety by combining immunotherapy with other drug therapies and treatment modalities. Combinations of immunotherapy with cancer drugs with different mechanisms of action (cytotoxic agents, molecular-targeted agents, immune checkpoint inhibitors), as well as with radiation therapy and surgery are being investigated, and have the potential to significantly change medical care for these patients. The application of cancer immunotherapy not only to daily clinical practice but also to further therapeutic development requires a clear and complete understanding of the fundamentals of cancer immunotherapy, and knowledge of the numerous clinical studies conducted, both past and present. The results of these trials are numerous, both positive and negative, and a comprehensive understanding of this wide range of completed and ongoing clinical trials is critical to a systematic and comprehensive understanding of their scope and lessons learnt. In this article, after outlining the concepts of ``cancer immune cycle,'' ``cancer immune editing,'' and ``tumor microenvironment'' to provide an understanding of the basics of cancer immunity, we summarize the basics and clinical trial data on representative immune checkpoint inhibitors used in various cancer types, as well as recent therapeutic developments in cancer immunotherapy and the current status of these new treatments.
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Affiliation(s)
- Susumu Okano
- Department of Head and Neck Medical Oncology, National Cancer Center Hospital East, 6-5-1, Kashiwanoha, Kashiwa, Chiba 277-8577, Japan.
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289
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Berentsen S, Vos JMI, Malecka A, Tjønnfjord GE, D'Sa S. The impact of individual clinical features in cold agglutinin disease: hemolytic versus non-hemolytic symptoms. Expert Rev Hematol 2024; 17:479-492. [PMID: 38938203 DOI: 10.1080/17474086.2024.2372333] [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: 03/05/2024] [Accepted: 06/21/2024] [Indexed: 06/29/2024]
Abstract
INTRODUCTION During the last decades, the pathogenesis of cold agglutinin disease (CAD) has been well elucidated and shown to be complex. Several documented or investigational therapies have been made available. This development has resulted in major therapeutic advances, but also in challenges in choice of therapy. AREAS COVERED In this review, we address each step in pathogenesis: bone marrow clonal lymphoproliferation, composition and effects of monoclonal cold agglutinin, non-complement mediated erythrocyte agglutination, complement-dependent hemolysis, and other effects of complement activation. We also discuss the heterogeneous clinical features and their relation to specific steps in pathogenesis, in particular with respect to the impact of complement involvement. CAD can be classified into three clinical phenotypes with consequences for established treatments as well as development of new therapies. Some promising future treatment approaches - beyond chemoimmunotherapy and complement inhibition - are reviewed. EXPERT OPINION The patient's individual clinical profile regarding complement involvement and hemolytic versus non-hemolytic features is important for the choice of treatment. Further development of treatment approaches is encouraged, and some candidate drugs are promising irrespective of clinical phenotype. Patients with CAD requiring therapy should be considered for inclusion in clinical trials.
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Affiliation(s)
- Sigbjørn Berentsen
- Department of Research and Innovation, Haugesund Hospital, Helse Fonna Hospital Trust, Haugesund, Norway
| | | | - Agnieszka Malecka
- Department of Haematology, Oslo University Hospital, Oslo, Norway
- Department of Pathology, Oslo University Hospital, Oslo, Norway
| | - Geir E Tjønnfjord
- Department of Haematology, Oslo University Hospital, Oslo, Norway
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Shirley D'Sa
- UCLH Centre for Waldenstrom macroglobulinaemia and Related Conditions, University College London Hospitals NHS Foundation Trust, London, UK
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290
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Xiang Y, Shi Y, Sun L, Liang W, Chen K, Li C. Novel ApeC-containing protein mediates the recognition and internalization of Vibrio splendidus in Apostichopus japonicus. Int J Biol Macromol 2024; 275:133737. [PMID: 38986992 DOI: 10.1016/j.ijbiomac.2024.133737] [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: 12/14/2023] [Revised: 06/26/2024] [Accepted: 07/06/2024] [Indexed: 07/12/2024]
Abstract
Pattern recognition receptors (PRRs) mediate the innate immune responses and play a crucial role in host defense against pathogen infections. Apextrin C-terminal (ApeC)-containing proteins (ACPs), a newly discovered class of PRRs specific to invertebrates, recognize pathogens through their ApeC domain as intracellular or extracellular effectors. However, the other immunological functions of ACPs remain unclear. In this study, a membrane-localized ACP receptor was identified in the sea cucumber Apostichopus japonicus (denoted as AjACP1). The ApeC domain of AjACP1, which was located outside of its cell membrane, exhibited the capability to recognize and aggregate Vibrio splendidus. AjACP1 was upregulated upon V. splendidus infection, internalizing into the cytoplasm of coelomocytes. AjACP1 overexpression enhanced the phagocytic activity of coelomocytes against V. splendidus, while knockdown of AjACP1 by RNA interfere inhibited coelomocyte endocytosis. Inhibitor experiments indicated that AjACP1 regulated coelomocyte phagocytosis through the actin-dependent endocytic signaling pathway. Further investigation revealed that AjACP1 interacted with the subunit of the actin-related protein 2/3 complex ARPC2, promoting F-actin polymerization and cytoskeletal rearrangement and thereby affecting the coelomocyte phagocytosis of V. splendidus via the actin-dependent endocytic signaling pathway. As a novel membrane PRR, AjACP1 mediates the recognition and phagocytic activity of coelomocytes against V. splendidus through the AjACP1-ARPC2-F-actin polymerization and cytoskeletal rearrangement pathway.
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Affiliation(s)
- Yangxi Xiang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Yue Shi
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Lianlian Sun
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Weikang Liang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Kaiyu Chen
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Chenghua Li
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Ningbo University, Ningbo, Zhejiang 315211, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China.
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291
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Zhang J, Wu Y, Wang Y, Wang J, Ye Y, Yin H, Sun N, Qin B, Sun N. TRIM35 Negatively Regulates the cGAS-STING-Mediated Signaling Pathway by Attenuating K63-Linked Ubiquitination of STING. Inflammation 2024:10.1007/s10753-024-02093-4. [PMID: 39088122 DOI: 10.1007/s10753-024-02093-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2024] [Revised: 06/21/2024] [Accepted: 06/27/2024] [Indexed: 08/02/2024]
Abstract
The cGAS-STING-mediated antiviral response plays an important role in the defense against DNA virus infection. Tripartite motif protein 35 (TRIM35), an E3 ubiquitin ligase, was identified as a positive regulator of RLR-mediated antiviral signaling in our previous study, but the effect of TRIM35 on the cGAS-STING signaling pathway has not been elucidated. Herein, we showed that TRIM35 negatively regulates the cGAS-STING signaling pathway by directly targeting STING. TRIM35 overexpression significantly inhibited the cGAMP-triggered phosphorylation of TBK1 and IRF3, attenuating IFN-β expression and the downstream antiviral response. Mechanistically, TRIM35 colocalized and directly interacted with STING in the cytoplasm. TRM35 removed K63-linked ubiquitin from STING through the C36 and C44 sites in the RING domain, which impaired the interaction of STING with TBK1 or IKKε. In addition, we demonstrated that the RING domain is a key region for the antiviral effects of TIRM35. These results collectively indicate that TRIM35 negatively regulates type I interferon (IFN-I) production by targeting and deubiquitinating STING. TRIM35 may be a potential therapeutic target for controlling viral infection.
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Affiliation(s)
- Jikai Zhang
- Xuzhou Medical University, Xuzhou, China
- Department of Pathogen Biology and Immunology, Jiangsu Key Laboratory of Immunity and Metabolism, School of Basic Medical Sciences, Xuzhou Medical University, Xuzhou, China
| | - Yuhao Wu
- Xuzhou Medical University, Xuzhou, China
| | - Yiwen Wang
- Xuzhou Medical University, Xuzhou, China
| | - Jing Wang
- Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Yinlin Ye
- Xuzhou Medical University, Xuzhou, China
| | - Hang Yin
- Xuzhou Medical University, Xuzhou, China
| | - Ningye Sun
- Xuzhou Medical University, Xuzhou, China
| | | | - Nan Sun
- Xuzhou Medical University, Xuzhou, China.
- Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, China.
- Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China.
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292
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Braun C, Badiou C, Guironnet-Paquet A, Iwata M, Lenief V, Mosnier A, Beauclair C, Renucci E, Bouschon P, Cuzin R, Briend Y, Patra V, Patot S, Scharschmidt TC, van Wamel W, Lemmens N, Nakajima S, Vandenesh F, Nicolas JF, Lina G, Nosbaum A, Vocanson M. Staphylococcus aureus-specific skin resident memory T cells protect against bacteria colonization but exacerbate atopic dermatitis-like flares in mice. J Allergy Clin Immunol 2024; 154:355-374. [PMID: 38734386 DOI: 10.1016/j.jaci.2024.03.032] [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: 10/27/2023] [Revised: 02/15/2024] [Accepted: 03/26/2024] [Indexed: 05/13/2024]
Abstract
BACKGROUND The contribution of Staphylococcus aureus to the exacerbation of atopic dermatitis (AD) is widely documented, but its role as a primary trigger of AD skin symptoms remains poorly explored. OBJECTIVES This study sought to reappraise the main bacterial factors and underlying immune mechanisms by which S aureus triggers AD-like inflammation. METHODS This study capitalized on a preclinical model, in which different clinical isolates were applied in the absence of any prior experimental skin injury. RESULTS The development of S aureus-induced dermatitis depended on the nature of the S aureus strain, its viability, the concentration of the applied bacterial suspension, the production of secreted and nonsecreted factors, as well as the activation of accessory gene regulatory quorum sensing system. In addition, the rising dermatitis, which exhibited the well-documented AD cytokine signature, was significantly inhibited in inflammasome adaptor apoptosis-associated speck-like protein containing a CARD domain- and monocyte/macrophage-deficient animals, but not in T- and B-cell-deficient mice, suggesting a major role for the innate response in the induction of skin inflammation. However, bacterial exposure generated a robust adaptive immune response against S aureus, and an accumulation of S aureus-specific γδ and CD4+ tissue resident memory T cells at the site of previous dermatitis. The latter both contributed to worsen the flares of AD-like dermatitis on new bacteria exposures, but also, protected the mice from persistent bacterial colonization. CONCLUSIONS These data highlight the induction of unique AD-like inflammation, with the generation of proinflammatory but protective tissue resident memory T cells in a context of natural exposure to pathogenic S aureus strains.
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Affiliation(s)
- Camille Braun
- Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, Unité Mixte de Recherche 5308, Centre national de la recherche scientifique, Ecole Normale Supérieure de Lyon, Lyon, France; Service de Pédiatrie, Pneumologie, Allergologie, Mucoviscidose, Hôpital Femme Mère Enfant, Hospices Civils de Lyon, Bron, France
| | - Cédric Badiou
- Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, Unité Mixte de Recherche 5308, Centre national de la recherche scientifique, Ecole Normale Supérieure de Lyon, Lyon, France
| | - Aurélie Guironnet-Paquet
- Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, Unité Mixte de Recherche 5308, Centre national de la recherche scientifique, Ecole Normale Supérieure de Lyon, Lyon, France; Etablissement Français du Sang Auvergne Rhône-Alpes, Apheresis Unit, Hôpital Lyon Sud, Pierre-Bénite, France
| | - Masashi Iwata
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Vanina Lenief
- Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, Unité Mixte de Recherche 5308, Centre national de la recherche scientifique, Ecole Normale Supérieure de Lyon, Lyon, France
| | - Amandine Mosnier
- Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, Unité Mixte de Recherche 5308, Centre national de la recherche scientifique, Ecole Normale Supérieure de Lyon, Lyon, France
| | - Charlotte Beauclair
- Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, Unité Mixte de Recherche 5308, Centre national de la recherche scientifique, Ecole Normale Supérieure de Lyon, Lyon, France
| | - Emilie Renucci
- Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, Unité Mixte de Recherche 5308, Centre national de la recherche scientifique, Ecole Normale Supérieure de Lyon, Lyon, France
| | - Pauline Bouschon
- Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, Unité Mixte de Recherche 5308, Centre national de la recherche scientifique, Ecole Normale Supérieure de Lyon, Lyon, France
| | - Roxane Cuzin
- Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, Unité Mixte de Recherche 5308, Centre national de la recherche scientifique, Ecole Normale Supérieure de Lyon, Lyon, France
| | - Yoann Briend
- Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, Unité Mixte de Recherche 5308, Centre national de la recherche scientifique, Ecole Normale Supérieure de Lyon, Lyon, France
| | - Vijaykumar Patra
- Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, Unité Mixte de Recherche 5308, Centre national de la recherche scientifique, Ecole Normale Supérieure de Lyon, Lyon, France
| | - Sabine Patot
- Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, Unité Mixte de Recherche 5308, Centre national de la recherche scientifique, Ecole Normale Supérieure de Lyon, Lyon, France
| | | | - Willem van Wamel
- Department of Medical Microbiology and Infectious Diseases, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Nicole Lemmens
- Department of Medical Microbiology and Infectious Diseases, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Saeko Nakajima
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - François Vandenesh
- Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, Unité Mixte de Recherche 5308, Centre national de la recherche scientifique, Ecole Normale Supérieure de Lyon, Lyon, France; Service de Microbiologie Clinique, Groupement Hospitalier Nord, Hospices Civils de Lyon, Bron, France; Centre National de Référence des Staphylocoques, Hospices Civils de Lyon, Lyon, France
| | - Jean-François Nicolas
- Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, Unité Mixte de Recherche 5308, Centre national de la recherche scientifique, Ecole Normale Supérieure de Lyon, Lyon, France; Service d'Allergologie et Immunologie Clinique, Centre Hospitalier Lyon Sud, Hospices Civils de Lyon, Pierre-Bénite, France
| | - Gérard Lina
- Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, Unité Mixte de Recherche 5308, Centre national de la recherche scientifique, Ecole Normale Supérieure de Lyon, Lyon, France; Service de Microbiologie Clinique, Groupement Hospitalier Nord, Hospices Civils de Lyon, Bron, France; Centre National de Référence des Staphylocoques, Hospices Civils de Lyon, Lyon, France
| | - Audrey Nosbaum
- Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, Unité Mixte de Recherche 5308, Centre national de la recherche scientifique, Ecole Normale Supérieure de Lyon, Lyon, France; Service d'Allergologie et Immunologie Clinique, Centre Hospitalier Lyon Sud, Hospices Civils de Lyon, Pierre-Bénite, France
| | - Marc Vocanson
- Centre International de Recherche en Infectiologie (CIRI), INSERM U1111, Unité Mixte de Recherche 5308, Centre national de la recherche scientifique, Ecole Normale Supérieure de Lyon, Lyon, France.
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293
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Weihrauch T, Melo RCN, Gray N, Voehringer D, Weller PF, Raap U. Eosinophil extracellular vesicles and DNA traps in allergic inflammation. FRONTIERS IN ALLERGY 2024; 5:1448007. [PMID: 39148911 PMCID: PMC11324581 DOI: 10.3389/falgy.2024.1448007] [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: 06/12/2024] [Accepted: 07/23/2024] [Indexed: 08/17/2024] Open
Abstract
Eosinophil granulocytes, a specialized subset of white blood cells, have traditionally been associated with allergic responses and parasitic infections. However, recent research has unveiled their versatile roles in immune regulation beyond these classical functions. This review highlights the emerging field of eosinophil biology, with a particular focus on their release of extracellular vesicles (EVs) and extracellular DNA traps (EETs). It further explores potential implications of eosinophil-derived EVs and EETs for immune responses during inflammatory diseases. The release of EVs/EETs from eosinophils, which also affects the eosinophils themselves, may influence both local and systemic immune reactions, affecting the pathophysiology of conditions such as airway inflammation, chronic rhinosinusitis and atopic dermatitis.
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Affiliation(s)
- Tobias Weihrauch
- Division of Experimental Allergy and Immunodermatology, Faculty of Medicine and Health Sciences, Carl von Ossietzky University Oldenburg, Oldenburg, Germany
| | - Rossana C N Melo
- Laboratory of Cellular Biology, Department of Biology, Institute of Biological Sciences (ICB), Federal University of Juiz de Fora, UFJF, Juiz de Fora, Brazil
| | - Natalie Gray
- Division of Experimental Allergy and Immunodermatology, Faculty of Medicine and Health Sciences, Carl von Ossietzky University Oldenburg, Oldenburg, Germany
- Division of Anatomy, Faculty of Medicine and Health Sciences, Carl von Ossietzky University Oldenburg, Oldenburg, Germany
| | - David Voehringer
- Department of Infection Biology, University Hospital Erlangen, Erlangen, Germany
- FAU Profile Center Immunomedicine (FAU I-MED), Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Peter F Weller
- Division of Allergy and Inflammation, Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, United States
| | - Ulrike Raap
- Division of Experimental Allergy and Immunodermatology, Faculty of Medicine and Health Sciences, Carl von Ossietzky University Oldenburg, Oldenburg, Germany
- Research Center for Neurosensory Science, Carl von Ossietzky University Oldenburg, Oldenburg, Germany
- University Clinic of Dermatology and Allergy, Carl von Ossietzky University Oldenburg, Oldenburg, Germany
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294
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Hilton LK, Collinge B, Ben-Neriah S, Alduaij W, Shaalan H, Weng AP, Cruz M, Slack GW, Farinha P, Miyata-Takata T, Boyle M, Meissner B, Cook JR, Ondrejka SL, Ott G, Rosenwald A, Campo E, Amador C, Greiner TC, Raess PW, Song JY, Inghirami G, Jaffe ES, Weisenburger DD, Chan WC, Beiske K, Fu K, Delabie J, Pittaluga S, Iqbal J, Wright G, Sehn LH, Savage KJ, Mungall AJ, Feldman AL, Staudt LM, Steidl C, Rimsza LM, Morin RD, Scott DW. Motive and opportunity: MYC rearrangements in high-grade B-cell lymphoma with MYC and BCL2 rearrangements (an LLMPP study). Blood 2024; 144:525-540. [PMID: 38701426 PMCID: PMC11307266 DOI: 10.1182/blood.2024024251] [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: 02/09/2024] [Revised: 04/03/2024] [Accepted: 04/05/2024] [Indexed: 05/05/2024] Open
Abstract
ABSTRACT Rearrangements that place the oncogenes MYC, BCL2, or BCL6 adjacent to superenhancers are common in mature B-cell lymphomas. Lymphomas with diffuse large B-cell lymphoma (DLBCL) or high-grade morphology with both MYC and BCL2 rearrangements are classified as high-grade B-cell lymphoma with MYC and BCL2 rearrangements ("double hit"; HGBCL-DH-BCL2) and are associated with aggressive disease and poor outcomes. Although it is established that MYC rearrangements involving immunoglobulin (IG) loci are associated with inferior outcomes relative to those involving other non-IG superenhancers, the frequency of and mechanisms driving IG vs non-IG MYC rearrangements have not been elucidated. Here, we used custom targeted capture and/or whole-genome sequencing to characterize oncogene rearrangements across 883 mature B-cell lymphomas including Burkitt lymphoma, follicular lymphoma, DLBCL, and HGBCL-DH-BCL2 tumors. We demonstrate that, although BCL2 rearrangement topology is consistent across entities, HGBCL-DH-BCL2 have distinct MYC rearrangement architecture relative to tumors with single MYC rearrangements or with both MYC and BCL6 rearrangements (HGBCL-DH-BCL6), including both a higher frequency of non-IG rearrangements and different architecture of MYC::IGH rearrangements. The distinct MYC rearrangement patterns in HGBCL-DH-BCL2 occur on the background of high levels of somatic hypermutation across MYC partner loci in HGBCL-DH-BCL2, creating more opportunity to form these rearrangements. Furthermore, because 1 IGH allele is already disrupted by the existing BCL2 rearrangement, the MYC rearrangement architecture in HGBCL-DH-BCL2 likely reflects selective pressure to preserve both BCL2 and B-cell receptor expression. These data provide new mechanistic explanations for the distinct patterns of MYC rearrangements observed across different lymphoma entities.
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Affiliation(s)
- Laura K. Hilton
- Centre for Lymphoid Cancer, BC Cancer, Vancouver, BC, Canada
- Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, BC, Canada
| | - Brett Collinge
- Centre for Lymphoid Cancer, BC Cancer, Vancouver, BC, Canada
- Department of Pathology and Laboratory Medicine, The University of British Columbia, Vancouver, BC, Canada
| | | | - Waleed Alduaij
- Centre for Lymphoid Cancer, BC Cancer, Vancouver, BC, Canada
| | - Haya Shaalan
- Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, BC, Canada
| | - Andrew P. Weng
- Terry Fox Laboratory, BC Cancer Research Institute, Vancouver, BC, Canada
| | - Manuela Cruz
- Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, BC, Canada
| | - Graham W. Slack
- Centre for Lymphoid Cancer, BC Cancer, Vancouver, BC, Canada
- Department of Pathology and Laboratory Medicine, The University of British Columbia, Vancouver, BC, Canada
| | - Pedro Farinha
- Centre for Lymphoid Cancer, BC Cancer, Vancouver, BC, Canada
- Department of Pathology and Laboratory Medicine, The University of British Columbia, Vancouver, BC, Canada
| | | | - Merrill Boyle
- Centre for Lymphoid Cancer, BC Cancer, Vancouver, BC, Canada
| | | | - James R. Cook
- Department of Clinical Pathology, Cleveland Clinic, Cleveland, OH
| | | | - German Ott
- Department of Clinical Pathology, Robert-Bosch-Krankenhaus and Dr. Margarete Fischer-Bosch Institute of Clinical Pharmacology, Stuttgart, Germany
| | | | - Elias Campo
- Hematopathology Section, Hospital Clinic of Barcelona, Institut d’Investigaciones Biomediques August Pi I Sunyer, University of Barcelona, Barcelona, Spain
| | - Catalina Amador
- Department of Pathology and Laboratory Medicine, University of Miami Miller School of Medicine, Miami, FL
| | - Timothy C. Greiner
- Department of Pathology, Microbiology and Immunology, University of Nebraska Medical Center, Omaha, NE
| | - Philipp W. Raess
- Department of Pathology and Laboratory Medicine, Oregon Health & Science University, Portland, OR
| | - Joo Y. Song
- Department of Pathology, City of Hope, Duarte, CA
| | - Giorgio Inghirami
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY
| | - Elaine S. Jaffe
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Dennis D. Weisenburger
- Department of Pathology, Microbiology and Immunology, University of Nebraska Medical Center, Omaha, NE
| | - Wing C. Chan
- Department of Pathology, City of Hope, Duarte, CA
| | - Klaus Beiske
- Department of Pathology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
| | - Kai Fu
- Department of Pathology and Laboratory Medicine, Roswell Park Comprehensive Cancer Center, Buffalo, NY
| | - Jan Delabie
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Stefania Pittaluga
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Javeed Iqbal
- Department of Pathology, Microbiology and Immunology, University of Nebraska Medical Center, Omaha, NE
| | - George Wright
- Division of Cancer Treatment and Diagnosis, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Laurie H. Sehn
- Centre for Lymphoid Cancer, BC Cancer, Vancouver, BC, Canada
- Division of Medical Oncology, Department of Medicine, The University of British Columbia, Vancouver, BC, Canada
| | - Kerry J. Savage
- Centre for Lymphoid Cancer, BC Cancer, Vancouver, BC, Canada
- Division of Medical Oncology, Department of Medicine, The University of British Columbia, Vancouver, BC, Canada
| | - Andrew J. Mungall
- Canada’s Michael Smith Genome Sciences Centre, BC Cancer Research Institute, Vancouver, BC, Canada
| | - Andrew L. Feldman
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN
| | - Louis M. Staudt
- Lymphoid Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Christian Steidl
- Centre for Lymphoid Cancer, BC Cancer, Vancouver, BC, Canada
- Department of Pathology and Laboratory Medicine, The University of British Columbia, Vancouver, BC, Canada
| | - Lisa M. Rimsza
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Scottsdale, AZ
| | - Ryan D. Morin
- Centre for Lymphoid Cancer, BC Cancer, Vancouver, BC, Canada
- Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, BC, Canada
- Canada’s Michael Smith Genome Sciences Centre, BC Cancer Research Institute, Vancouver, BC, Canada
| | - David W. Scott
- Centre for Lymphoid Cancer, BC Cancer, Vancouver, BC, Canada
- Division of Medical Oncology, Department of Medicine, The University of British Columbia, Vancouver, BC, Canada
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295
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Lee YA, Shin MH. CysLT receptor-mediated NOX2 activation is required for IL-8 production in HMC-1 cells induced by Trichomonas vaginalis-derived secretory products. PARASITES, HOSTS AND DISEASES 2024; 62:270-280. [PMID: 39218626 PMCID: PMC11366543 DOI: 10.3347/phd.24046] [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: 06/28/2024] [Accepted: 08/11/2024] [Indexed: 09/04/2024]
Abstract
Trichomoniasis is caused by a sexually transmitted flagellate protozoan parasite Trichomonas vaginalis. T. vaginalis-derived secretory products (TvSP) contain lipid mediators such as leukotriene B4 (LTB4) and various cysteinyl leukotrienes (CysLTs) which included LTC4, LTD4, and LTE4. However, the signaling mechanisms by which T. vaginalis-induced CysLTs stimulate interleukin (IL)-8 production in human mast cells remain unclear. In this study, we investigated these mechanisms in human mast cells (HMC-1). Stimulation with TvSP resulted in increased intracellular reactive oxygen species (ROS) generation and NADPH oxidase 2 (NOX2) activation compared to unstimulated cells. Pre-treatment with NOX2 inhibitors such as diphenyleneiodonium chloride (DPI) or apocynin significantly reduced ROS production in TvSP-stimulated HMC-1 cells. Additionally, TvSP stimulation increased NOX2 protein expression and the translocation of p47phox from the cytosol to the membrane. Pretreatment of HMC-1 cells with PI3K or PKC inhibitors reduced TvSP-induced p47phox translocation and ROS generation. Furthermore, NOX2 inhibitors or NOX2 siRNA prevented CREB phosphorylation and IL-8 gene expression or protein secretion induced by TvSP. Pretreatment with a CysLTR antagonist significantly inhibited TvSP-induced ROS production, CREB phosphorylation, and IL-8 production. These results indicate that CysLT-mediated activation of NOX2 plays a crucial role in ROS-dependent IL-8 production in human mast cells stimulated by T. vaginalis-secreted CysLTs. These findings enhance our understanding of the inflammatory response in trichomoniasis and may inform the development of targeted therapies to mitigate this response.
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Affiliation(s)
- Young Ah Lee
- Department of Tropical Medicine and Institute of Tropical Medicine, Yonsei University College of Medicine, Seoul 03722,
Korea
| | - Myeong Heon Shin
- Department of Tropical Medicine and Institute of Tropical Medicine, Yonsei University College of Medicine, Seoul 03722,
Korea
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296
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Mariaselvam CM, Seth G, Kavadichanda C, Boukouaci W, Wu CL, Costes B, Thabah MM, Krishnamoorthy R, Leboyer M, Negi VS, Tamouza R. Low C4A copy numbers and higher HERV gene insertion contributes to increased risk of SLE, with absence of association with disease phenotype and disease activity. Immunol Res 2024; 72:697-706. [PMID: 38594415 DOI: 10.1007/s12026-024-09475-8] [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: 01/18/2024] [Accepted: 03/23/2024] [Indexed: 04/11/2024]
Abstract
Low copy numbers (CNs) of C4 genes are associated with systemic autoimmune disorders and affects autoantibody diversity and disease subgroups. The primary objective of this study was to characterize diversity of complement (C4) and C4-Human Endogenous Retrovirus (HERV) gene copy numbers in SLE. We also sought to assess the association of C4 and C4-HERV CNs with serum complement levels, autoantibodies, disease phenotypes and activity. Finally, we checked the association of C4 and HERV CNs with specific HLA alleles. Genomic DNA from 70 SLE and 90 healthy controls of south Indian Tamil origin were included. Demographic, clinical and serological data was collected in a predetermined proforma. CNs of C4A and C4B genes and the frequency of insertion of 6.4kb HERV within C4 gene (C4AL, C4BL) was determined using droplet digital polymerase chain reaction (ddPCR). A four digit high resolution HLA genotyping was done using next generation sequencing. In our cohort, the total C4 gene copies ranged from 2 to 6. Compared to controls, presence of two or less copies of C4A gene was associated with SLE risk (p = 0.005; OR = 2.79; 95% CI = 1.29-6.22). Higher frequency of HERV insertion in C4A than in C4B increases such risk (p = 0.000; OR = 12.67; 95% CI = 2.80-115.3). AL-AL-AL-BS genotype was significantly higher in controls than SLE (9%vs1%, p = 0.04; OR = 0.15, 95% CI = 0.00-0.16). Distribution of HLA alleles was not different in SLE compared to controls as well as in SLE subjects with ≤ 2 copies and > 2 copies of C4A, but HLA allele distribution was diverse in subjects with C4B ≤ 2 copies and > 2 copies. Finally, there was no correlation between the C4 and the C4-HERV diversity and complement levels, autoantibodies, disease phenotypes and activity. In conclusion, our data show that, low C4A copy number and higher insertion of HERV-K in C4A increases the risk for SLE. C4 and C4-HERV CNs did not correlate with serum complements, autoantibodies, disease phenotypes and activity in SLE. Further validation in a larger homogenous SLE cohort is needed.
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Affiliation(s)
- Christina Mary Mariaselvam
- Department of Clinical Immunology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, 605 006, India.
- AP-HP, DMU IMPACT, FHU ADAPT, Fondation FondaMental, IMRB, Translational Neuropsychiatry, INSERM UMR 955, Univ Paris Est Créteil, Créteil, F-94010, France.
| | - Gaurav Seth
- Department of Clinical Immunology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, 605 006, India
| | - Chengappa Kavadichanda
- Department of Clinical Immunology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, 605 006, India
| | - Wahid Boukouaci
- AP-HP, DMU IMPACT, FHU ADAPT, Fondation FondaMental, IMRB, Translational Neuropsychiatry, INSERM UMR 955, Univ Paris Est Créteil, Créteil, F-94010, France
| | - Ching-Lien Wu
- AP-HP, DMU IMPACT, FHU ADAPT, Fondation FondaMental, IMRB, Translational Neuropsychiatry, INSERM UMR 955, Univ Paris Est Créteil, Créteil, F-94010, France
| | - Bruno Costes
- IMRB, INSERM U955, Univ Paris Est Créteil, Créteil, F-94010, France
| | - Molly Mary Thabah
- Department of Clinical Immunology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, 605 006, India
| | - Rajagopal Krishnamoorthy
- AP-HP, DMU IMPACT, FHU ADAPT, Fondation FondaMental, IMRB, Translational Neuropsychiatry, INSERM UMR 955, Univ Paris Est Créteil, Créteil, F-94010, France
| | - Marion Leboyer
- AP-HP, DMU IMPACT, FHU ADAPT, Fondation FondaMental, IMRB, Translational Neuropsychiatry, INSERM UMR 955, Univ Paris Est Créteil, Créteil, F-94010, France
| | - Vir Singh Negi
- Department of Clinical Immunology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, 605 006, India
| | - Ryad Tamouza
- AP-HP, DMU IMPACT, FHU ADAPT, Fondation FondaMental, IMRB, Translational Neuropsychiatry, INSERM UMR 955, Univ Paris Est Créteil, Créteil, F-94010, France
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297
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Ngwa C, Al Mamun A, Qi S, Sharmeen R, Conesa MPB, Ganesh BP, Manwani B, Liu F. Central IRF4/5 Signaling Are Critical for Microglial Activation and Impact on Stroke Outcomes. Transl Stroke Res 2024; 15:831-843. [PMID: 37432594 PMCID: PMC10782817 DOI: 10.1007/s12975-023-01172-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 05/23/2023] [Accepted: 06/29/2023] [Indexed: 07/12/2023]
Abstract
Microglia and monocytes play a critical role in immune responses to cerebral ischemia. Previous studies have demonstrated that interferon regulatory factor 4 (IRF4) and IRF5 direct microglial polarization after stroke and impact outcomes. However, IRF4/5 are expressed by both microglia and monocytes, and it is not clear if it is the microglial (central) or monocytic (peripheral) IRF4-IRF5 regulatory axis that functions in stroke. In this work, young (8-12 weeks) male pep boy (PB), IRF4 or IRF5 flox, and IRF4 or IRF5 conditional knockout (CKO) mice were used to generate 8 types of bone marrow chimeras, to differentiate the role of central (PB-to-IRF CKO) vs. peripheral (IRF CKO-to-PB) phagocytic IRF4-IRF5 axis in stroke. Chimeras generated from PB and flox mice were used as controls. All chimeras were subjected to 60-min middle cerebral artery occlusion (MCAO) model. Three days after the stroke, outcomes and inflammatory responses were analyzed. We found that PB-to-IRF4 CKO chimeras had more robust microglial pro-inflammatory responses than IRF4 CKO-to-PB chimeras, while ameliorated microglial response was seen in PB-to-IRF5 CKO vs. IRF5 CKO-to-PB chimeras. PB-to-IRF4 or IRF5 CKO chimeras had worse or better stroke outcomes respectively than their controls, whereas IRF4 or 5 CKO-to-PB chimeras had similar outcomes compared to controls. We conclude that the central IRF4/5 signaling is responsible for microglial activation and mediates stroke outcomes.
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Affiliation(s)
- Conelius Ngwa
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA
| | - Abdullah Al Mamun
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA
| | - Shaohua Qi
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA
| | - Romana Sharmeen
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA
| | - Maria P Blasco Conesa
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA
| | - Bhanu P Ganesh
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA
| | - Bharti Manwani
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA
| | - Fudong Liu
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA.
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298
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Harrison DG, Patrick DM. Immune Mechanisms in Hypertension. Hypertension 2024; 81:1659-1674. [PMID: 38881474 PMCID: PMC11254551 DOI: 10.1161/hypertensionaha.124.21355] [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] [Indexed: 06/18/2024]
Abstract
It is now apparent that immune mediators including complement, cytokines, and cells of the innate and adaptive immune system contribute not only to blood pressure elevation but also to the target organ damage that occurs in response to stimuli like high salt, aldosterone, angiotensin II, and sympathetic outflow. Alterations of vascular hemodynamic factors, including microvascular pulsatility and shear forces, lead to vascular release of mediators that affect myeloid cells to become potent antigen-presenting cells and promote T-cell activation. Research in the past 2 decades has defined specific biochemical and molecular pathways that are engaged by these stimuli and an emerging paradigm is these not only lead to immune activation, but that products of immune cells, including cytokines, reactive oxygen species, and metalloproteinases act on target cells to further raise blood pressure in a feed-forward fashion. In this review, we will discuss these molecular and pathophysiological events and discuss clinical interventions that might prove effective in quelling this inflammatory process in hypertension and related cardiovascular diseases.
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Affiliation(s)
- David G. Harrison
- Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232
| | - David M. Patrick
- Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232
- Department of Veterans Affairs, Nashville, TN 37212
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299
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Liu Y, Wu H, Liu B, Chen S, Huang L, Liu Z, Wang J, Xie L, Wu X. Multi-omics analysis reveals the impact of gut microbiota on antipsychotic-induced weight gain in schizophrenia. Schizophr Res 2024; 270:325-338. [PMID: 38964078 DOI: 10.1016/j.schres.2024.06.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 06/16/2024] [Accepted: 06/22/2024] [Indexed: 07/06/2024]
Abstract
Emerging evidence indicates that gut microbial dysbiosis is associated with the development of antipsychotic-induced weight gain in schizophrenia (SZ). However, the exact taxonomic composition and functionality that constitute the "obesogenic" microbial profile remain elusive. Our retrospective survey identified two groups of the SZ population separated by BMI, with 1/3 of patients developing overweight/obesity after chronic antipsychotic treatment. Based on multi-omics analysis, we observed altered gut microbiota in SZ patients with overweight/obesity, characterized by a reduction in several beneficial bacteria genera, including Bacteroides, Parabacteroides, Akkermansia, and Clostridium. This microbial dysbiosis was accompanied by disrupted energy expenditure and nutritional metabolism, worsened metabolic indices, and reduced levels of beneficial metabolites, e.g. indole-3-carboxylic acid and propionic acid. Moreover, leveraging data from first-episode drug-naïve schizophrenia (FSZ) patients at one-month and one-year follow-up, both artificial neural network and random forest classifier-based prediction models demonstrated a strong ability of microbial profiles to predict antipsychotic-induced weight gain. Importantly, FSZ patients with higher relative abundance of Parabacteria distasonis were less susceptible to antipsychotic-induced weight gain. Thus, gut microbiota could serve as a noninvasive approach to predict antipsychotic-induced weight gain, guiding clinical antipsychotics administration and developing novel therapeutic strategies for weight management in SZ.
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Affiliation(s)
- Yaxi Liu
- Psychiatry Department, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510630, China; Sleep Medicine Center of Psychiatry Department, The First Affiliated Hospital of Jinan University, Guangzhou 510630, China
| | - Hui Wu
- Radiology Department, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Bingdong Liu
- Department of Endocrinology and Metabolism, Zhujiang Hospital of Southern Medical University, Guangzhou 510280, China; State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, China
| | - Shengyun Chen
- Psychiatry Department, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510630, China
| | - Liujing Huang
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, China
| | - Zhihong Liu
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, China
| | - Jie Wang
- Department of Life Sciences, Imperial College London, London SW7 2AZ, United Kingdom
| | - Liwei Xie
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, China.
| | - Xiaoli Wu
- Psychiatry Department, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510630, China.
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300
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Ajibo DN, Orish CN, Ruggieri F, Bocca B, Battistini B, Frazzoli C, Orish FC, Orisakwe OE. An Update Overview on Mechanistic Data and Biomarker Levels in Cobalt and Chromium-Induced Neurodegenerative Diseases. Biol Trace Elem Res 2024; 202:3538-3564. [PMID: 38017235 DOI: 10.1007/s12011-023-03965-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 11/12/2023] [Indexed: 11/30/2023]
Abstract
There is increasing evidence that the imbalance of metals as cobalt (Co) and chromium (Cr) may increase the risk of development and progression of neurodegenerative diseases (NDDs). The human exposure to Co and Cr is derived mostly from industry, orthopedic implants, and polluted environments. Neurological effects of Co and Cr include memory deficit, olfactory dysfunction, spatial disorientation, motor neuron disease, and brain cancer. Mechanisms of Co and Cr neurotoxicity included DNA damage and genomic instability, epigenetic changes, mitochondrial disturbance, lipid peroxidation, oxidative stress, inflammation, and apoptosis. This paper seeks to overview the Co and Cr sources, the mechanisms by which these metals induce NDDs, and their levels in fluids of the general population and patients affected by NDDs. To this end, evidence of Co and Cr unbalance in the human body, mechanistic data, and neurological symptoms were collected using in vivo mammalian studies and human samples.
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Affiliation(s)
- Doris Nnena Ajibo
- Department of Experimental Pharmacology & Toxicology, Faculty of Pharmacy, University of Port Harcourt, PMB, 5323, Port Harcourt, Rivers State, Nigeria
| | - Chinna Nneka Orish
- Department of Anatomy, College of Health Sciences University of Port Harcourt, PMB, 5323, Port Harcourt, Rivers State, Nigeria
| | - Flavia Ruggieri
- Department of Environment and Health, Istituto Superiore Di Sanità, Rome, Italy
| | - Beatrice Bocca
- Department of Environment and Health, Istituto Superiore Di Sanità, Rome, Italy
| | - Beatrice Battistini
- Department of Environment and Health, Istituto Superiore Di Sanità, Rome, Italy
| | - Chiara Frazzoli
- Department for Cardiovascular, Endocrine-Metabolic Diseases, and Aging, Istituto Superiore Di Sanità, Rome Viale Regina Elena, 29900161, Rome, Italy
| | | | - Orish E Orisakwe
- Department of Experimental Pharmacology & Toxicology, Faculty of Pharmacy, University of Port Harcourt, PMB, 5323, Port Harcourt, Rivers State, Nigeria.
- African Centre of Excellence for Public Health and Toxicological Research (ACE-PUTOR), University of Port Harcourt, PMB, 5323, Port Harcourt, Rivers State, Nigeria.
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