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The MR1/MAIT cell axis enhances dystrophic neurite development in Alzheimer's disease.
Alzheimers Dement
January 2025
Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, Indiana, USA.
Introduction: Plaques are a hallmark feature of Alzheimer's disease (AD). We found that the loss of mucosal-associated invariant T (MAIT) cells and their antigen-presenting molecule MR1 caused a delay in plaque pathology development in AD mouse models. However, it remains unknown how this axis is impacting dystrophic neurites.
View Article and Find Full Text PDFApproaches to Enhance the Potency of Vaccines in Chickens.
Vaccines (Basel)
November 2024
Avian Influenza and Newcastle Disease Research Group, The Pirbright Institute, Ash Road, Woking GU 24 0NF, UK.
Outbreaks of avian pathogens such as Newcastle disease virus, avian influenza virus, and salmonella have a major impact on economies and food security worldwide. Some pathogens also pose a significant zoonotic potential, especially avian influenza viruses. Vaccination plays a key role in controlling many poultry diseases, and there are many vaccines licenced in the United Kingdom for diseases of poultry caused by viruses, bacteria, and parasites.
View Article and Find Full Text PDFCharacterization of Dendritic Cells and Myeloid-Derived Suppressor Cells Expressing Major Histocompatibility Complex Class II in Secondary Lymphoid Organs in Systemic Lupus Erythematosus-Prone Mice.
Int J Mol Sci
December 2024
Millennium Institute on Immunology and Immunotherapy, Laboratorio de Inmunología Traslacional, Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago 8370133, Chile.
Systemic lupus erythematosus (SLE) is an autoimmune disease characterized by self-antibody production and widespread inflammation affecting various body tissues. This disease is driven by the breakdown of immune tolerance, which promotes the activation of autoreactive B and T cells. A key feature of SLE is dysregulation in antigen presentation, where antigen-presenting cells (APCs) play a central role in perpetuating immune responses.
View Article and Find Full Text PDFKeratinocyte-Mediated Antigen Presentation in Psoriasis: Preliminary Insights from In Vitro Studies.
Int J Mol Sci
December 2024
Department of Medical Biology and Genetics, University of Gdansk, Wita Stwosza 59, 80-308 Gdansk, Poland.
Antigen presentation plays a critical role in the pathogenesis of immune-mediated disorders. This study aimed to investigate the effects of IFN-γ and a cytokine mix (5MIX: IL-1α, IL-17A, IL-22, OsM, and TNF-α) on the antigen-presenting capabilities of keratinocytes, with a specific focus on immune-mediated dermatological conditions such as psoriasis (Ps). To achieve this, keratinocytes were treated with IFN-γ and 5MIX, and their impact on the expression of key antigen-presentation molecules, HLA-DRα and CD74, was assessed.
View Article and Find Full Text PDFTargeting of Non-Classical Human Leukocyte Antigens as Novel Therapeutic Strategies in Cancer.
Cancers (Basel)
December 2024
Department of Immunology, IML and IdISSC, Hospital Clinico San Carlos, 28040 Madrid, Spain.
Human leukocyte antigens (HLAs) are essential regulators of immune responses against cancer, with classical HLAs well-documented for their role in tumor recognition and immune surveillance. In recent years, non-classical HLAs-including HLA-E, HLA-F, HLA-G, and HLA-H-have emerged as critical players in the immune landscape of cancer due to their diverse and less conventional functions in immune modulation. These molecules exhibit unique mechanisms that enable tumors to escape immune detection, promote tumor progression, and contribute to therapeutic resistance.
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