Kidney allograft rejection is a major issue because it causes graft failure and because immunosuppressive treatments used for its prevention increase the risk of infections and cancers. In systemic lupus patients, hydroxychloroquine is used to prevent immune flares with decreased doses of immunosuppressants. Hydroxychloroquine can be safely used in kidney transplant recipients when indicated for autoimmune disease, but its effect on allograft rejection is unknown. We hypothesized that it may prevent kidney allograft rejection. We conducted a nationwide retrospective propensity-matched study on kidney transplantations of patients treated with hydroxychloroquine in France between 2008 and 2018. We analyzed the incidence of allograft rejection or failure within the first year after transplantation. The rates of rejection or allograft failure were not different between the 188 patients treated with hydroxychloroquine at the time of transplantation and their propensity matched controls. Hydroxychloroquine treatment in association with standard immunosuppressive treatment does not prevent rejection in kidney allograft recipients.
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http://dx.doi.org/10.1016/j.transproceed.2024.05.027 | DOI Listing |
Transplantation
January 2025
Department of Surgery, Center for Transplantation Sciences, Massachusetts General Hospital, Harvard Medical School, Boston, MA.
Background: Long-term renal allograft acceptance has been achieved in macaques using a transient mixed hematopoetic chimerism protocol, but similar regimens have proven unsuccessful in heart allograft recipients unless a kidney transplant was performed simultaneously. Here, we test whether a modified protocol based on targeting CD154, CD2, and CD28 is sufficient to prolong heart allograft acceptance or promote the expansion of regulatory T cells.
Methods: Eight macaques underwent heterotopic allo-heart transplantation from major histocompatibility complex-mismatched donors.
Plast Reconstr Surg
December 2024
Copenhagen University Hospital, Department of Plastic Surgery and Burns Treatment, Rigshospitalet, Copenhagen, Denmark.
Background: Capsular contracture is a frequent and severe complication following breast implant surgery. Although several theories on the pathophysiology exist, the exact molecular mechanisms remain unclear. This study aimed to identify the specific genes, signaling pathways, and immune cells associated with capsular contracture.
View Article and Find Full Text PDFJ Clin Pathol
January 2025
Department of Pathology, Loyola University Chicago Stritch School of Medicine, Maywood, Illinois, USA.
Aims: In cystic fibrosis lung transplant recipients (LTRs), graft dysfunction due to acute infections, rejection or chronic lung allograft dysfunction (CLAD) is difficult to distinguish. Characterisation of the airway inflammatory milieu could help detect and prevent graft dysfunction. We speculated that an eosinophil or neutrophil-rich milieu is associated with higher risk of CLAD.
View Article and Find Full Text PDFTranspl Immunol
January 2025
Department of Urologic Sciences, University of British Columbia, Vancouver, BC, Canada. Electronic address:
Characteristic alterations in the urinary microbiome, or urobiome, are associated with renal transplant pathology. To date, there has been no direct study of the urobiome during acute allograft rejection. The goal of this study was to determine if unique urobiome alterations are present during acute rejection in renal transplant recipients.
View Article and Find Full Text PDFViruses
December 2024
Division of Infectious Diseases, Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA.
Cytomegalovirus (CMV) infection in solid organ transplant (SOT) and hematopoietic cell transplant (HCT) recipients may increase the risk of rejection or allograft dysfunction, other infection(s), and morbidity and mortality. Treatment can be challenging due to medication-associated toxicities. Maribavir (MBV) is a promising option for the treatment of resistant or refractory (R/R) CMV infection in lieu of foscarnet (FOS), which has long been the recommended therapy for (val)ganciclovir-resistant infection.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!