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Ageing and inflammation limit the induction of SARS-CoV-2-specific CD8+ T cell responses in severe COVID-19.
JCI Insight
January 2025
CNRS UMR 5164, INSERM ERL 1303, ImmunoConcEpT, University of Bordeaux, Bordeaux, France.
CD8+ T cells are critical for immune protection against severe COVID-19 during acute infection with SARS-CoV-2. However, the induction of antiviral CD8+ T cell responses varies substantially among infected people, and a better understanding of the mechanisms that underlie such immune heterogeneity is required for pandemic preparedness and risk stratification. In this study, we analyzed SARS-CoV-2-specific CD4+ and CD8+ T cell responses in relation to age, clinical status, and inflammation among patients infected primarily during the initial wave of the pandemic in France or Japan.
View Article and Find Full Text PDFEngineered antigen-specific T regulatory cells suppress autoreactivity to the anti-glomerular basement membrane disease antigen.
Kidney Int
January 2025
Centre for Inflammatory Diseases, Department of Medicine, School of Clinical Sciences, Monash University, Clayton, Australia. Electronic address:
Anti-glomerular basement membrane (anti-GBM) disease is accompanied by insufficient antigen-specific T regulatory cells (Tregs) and clonally expanded antigen-specific T conventional cells (Tconvs). In particular, this applied to the immunodominant T cell auto- epitope of type IV collagen, α3(IV)NC1135-145 , presented by HLA-DR15. Here, we investigated whether Tregs engineered to express GBM-T cell receptors (TCR) specific for α3(IV)NC1135- 145 better suppress autoimmunity.
View Article and Find Full Text PDFUltrasound-activated erythrocyte membrane-camouflaged Pt (II) layered double hydroxide enhances PD-1 inhibitor efficacy in triple-negative breast cancer through cGAS-STING pathway-mediated immunogenic cell death.
Theranostics
January 2025
Cancer Research Center, School of Medicine, Xiamen University, Xiamen, 361102, China.
Immunogenic cell death (ICD) offers a promising avenue for the treatment of triple-negative breast cancer (TNBC). However, optimizing immune responses remains a formidable challenge. This study presents the design of RBCm@Pt-CoNi layered double hydroxide (RmPLH), an innovative sonosensitizer for sonodynamic therapy (SDT), aimed at enhancing the efficacy of programmed cell death protein 1 (PD-1) inhibitors by inducing robust ICD responses.
View Article and Find Full Text PDFInduction of Antigen-Specific Tolerance in a Multiple Sclerosis Model without Broad Immunosuppression.
ACS Nano
January 2025
Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States.
Multiple sclerosis (MS) is a severe autoimmune disorder that wreaks havoc on the central nervous system, leading to a spectrum of motor and cognitive impairments. There is no cure, and current treatment strategies rely on broad immunosuppression, leaving patients vulnerable to infections. To address this problem, our approach aims to induce antigen-specific tolerance, a much-needed shift in MS therapy.
View Article and Find Full Text PDFExploring the Potential of Nanocarriers for Cancer Immunotherapy: Insights into Mechanism, Nanocarriers, and Regulatory Perspectives.
ACS Appl Bio Mater
January 2025
Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Hyderabad 500037, India.
Immunotherapy is a cutting-edge approach that leverages sophisticated technology to target tumor-specific antibodies and modulate the immune system to eradicate cancer and enhance patients' quality of life. Bioinformatics and genetic science advancements have made it possible to diagnose and treat cancer patients using immunotherapy technology. However, current immunotherapies against cancer have limited clinical benefits due to cancer-associated antigens, which often fail to interact with immune cells and exhibit insufficient therapeutic targeting with unintended side effects.
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