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Undiagnosed Lymphoma Detected During Routine Histocompatibility Crossmatch: Three Case Reports.
Am J Transplant
March 2025
Histocompatibility and Infectious Disease Testing Laboratory, Gift of Hope Organ & Tissue Donor Network, Itasca, IL; Department of Medicine, College of Human Medicine, Michigan State University, East Lansing, MI. Electronic address:
Unexpected transmission of donor-derived diseases, including infections and malignancies, through organ transplantation are occasionally observed and reported. Subclinical, or otherwise undiagnosed, hematological malignancies in potential donors are rare events and typically not identifiable via standard donor evaluation or laboratory testing. Flow cytometric crossmatching (FCXM) is a specialized assay routinely performed in clinical histocompatibility laboratories for the evaluation of immunological compatibility between the recipients and the organ donors through the detection of donor-specific antibodies.
View Article and Find Full Text PDFTransfusion of Fresh Frozen Plasma and Platelets in Critically Ill Adults An American College of Chest Physicians Clinical Practice Guideline.
Chest
March 2025
Division of Pulmonary and Critical Care Medicine, Henry Ford Hospital, Detroit, MI.
Background: Platelets and fresh frozen plasma (FFP) are frequently administered to critically ill patients. Considering the variability in indications and thresholds guiding these transfusions, a comprehensive review of current evidence was conducted to provide guidance to critical care practitioners. This CHEST guideline examined the literature on platelet transfusions in critically ill patients with thrombocytopenia, with and without active bleeding, as well as data on prophylactic platelet and FFP transfusions for common procedures in the critical care setting.
View Article and Find Full Text PDFSynergistic photothermal-sonodynamic therapy for antibacterial and immune reprogramming in chronic osteomyelitis.
J Control Release
March 2025
Department of Orthopedics Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, China. Electronic address:
The development of antibiotic resistance and inadequate immune response in chronic inflammation pose significant challenges in treating chronic osteomyelitis. As accepted non-antibiotic antimicrobial therapies, sonodynamic therapy (SDT) and photothermal therapy (PTT) are recognized for their effectiveness in eliminating bacteria and promoting tissue repair, rendering them promising therapeutic strategies for treating bacterial infections and preventing the emergence of drug-resistant bacteria. However, the antimicrobial action and efficacy in promoting tissue repair depend on the activation status of the host immune system.
View Article and Find Full Text PDFEarly expansion of TIGIT+PD1+ effector memory CD4 T cells via agonistic effect of alefacept in new-onset type 1 diabetes.
J Immunol
January 2025
Center for Translational Immunology, Benaroya Research Institute, Seattle, WA, United States.
The CD2-depleting drug alefacept (LFA3-Ig) preserved beta cell function in new-onset type 1 diabetes (T1D) patients. The most promising biomarkers of response were late expansion of exhausted CD8 T cells and rare baseline inflammatory islet-reactive CD4 T cells, neither of which can be used to measure responses to drug in the weeks after treatment. Thus, we investigated whether early changes in T cell immunophenotypes could serve as biomarkers of drug activity.
View Article and Find Full Text PDFThe cellular factors that impair the germinal center in advanced age.
J Immunol
March 2025
Immunology Program, Babraham Institute, Cambridge, United Kingdom.
Long-lasting immunological memory is a core feature of the adaptive immune system that allows an organism to have a potent recall response to foreign agents that have been previously encountered. Persistent humoral immunity is afforded by long-lived memory B cells and plasma cells, which can mature in germinal centers (GCs) in secondary lymphoid organs. The development of new GC-derived immunity diminishes with age, thereby impairing our immune system's response to both natural infections and vaccinations.
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