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Control of BKPyV-DNAemia by a Tailored Viro-Immunologic Approach Does Not Lead to BKPyV-Nephropathy Progression and Development of Donor-Specific Antibodies in Pediatric Kidney Transplantation.
Microorganisms
December 2024
Cell Factory, Department of Mother and Child Health, Fondazione IRCCS Policlinico S. Matteo, 27100 Pavia, Italy.
Polyomavirus BK (BKPyV)-associated nephropathy (BKPyV-nephropathy) remains a significant cause of premature kidney allograft failure. In the absence of effective antiviral treatments, current therapeutic approaches rely on immunosuppression (IS) reduction, possibly at the risk of inducing alloimmunity. Therefore, we sought to explore the long-term effects of a tailored viro-immunologic surveillance and treatment program for BKPyV on the development of alloimmunity and kidney graft outcome.
View Article and Find Full Text PDFAssociation analysis of T and B-cell epitopes with humoral alloimmunisation in kidney transplantation: A Tunisian cohort study.
Hum Immunol
January 2025
Immunology department, Hedi Chaker Hospital, University of Sfax, Sfax, Tunisia.
Introduction: HLA matching is critical for successful kidney transplantation. This study aimed to investigate the impact of eplet mismatches and Predicted Indirectly Recognizable HLA Epitopes (PIRCHE-II) scores on the development of de novo donor-specific antibodies (dnDSA) and graft survival in a Tunisian cohort, characterized by a high prevalence of living donors and significant genetic diversity in HLA profiles.
Methods: This retrospective study included 112 adult kidney transplant recipients who underwent transplantation between 2012 and 2018.
Mechanisms of allorecognition and xenorecognition in transplantation.
Clin Transplant Res
December 2024
The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, Korea.
Foreign antigen recognition is the ability of immune cells to distinguish self from nonself, which is crucial for immune responses in both invertebrates and vertebrates. In vertebrates, T cells play a pivotal role in graft rejection by recognizing alloantigens presented by antigen-presenting cells through direct, indirect, or semidirect pathways. B cells also significantly contribute to the indirect presentation of antigens to T cells.
View Article and Find Full Text PDF[Use of hydroxychloroquine in recurrent immune-mediated obstetric diseases (excluding systemic lupus): Scientific basis and evidence].
Rev Med Interne
December 2024
Service de médecine interne et inflammation, département inflammation-immunopathologie-biothérapie (DMU I3), CEREMAIAA, hôpital Saint-Antoine, AP-HP, Sorbonne université, Paris, France.
Hydroxychloroquine (HCQ), a synthetic antimalarial, is recognized for its immunomodulatory, anti-inflammatory and vascular-protective effects. In 20-30% of cases of primary obstetrical antiphospholipid syndrome (APS), the combination of antiplatelet aggregation and prophylactic anticoagulation fails to prevent obstetrical complications, a situation referred to as refractory obstetrical APS. This is partly due to the pro-inflammatory effects of antiphospholipid antibodies (aPL) binding to decidual and trophoblastic cells, which compromise embryonic implantation and placentation.
View Article and Find Full Text PDFMolecular matching tools for allocation and immunosuppression optimization. Ready for primetime?
Curr Opin Organ Transplant
February 2025
PIRCHE AG.
Purpose Of Review: Molecular matching continues to be an important topic in organ transplantation. Over the years, several studies - larger and smaller - supported correlations of molecular incompatibility loads and clinical outcomes. However, their practical utility for clinical decision making remains controversial and there is no consensus on the context in which they should be used.
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