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From isolation to detection, advancing insights into endothelial matrix-bound vesicles.
Extracell Vesicle
December 2024
Department of Chemical Engineering, University of Puerto Rico-Mayaguez, Route 108, Mayaguez, Puerto Rico, USA.
Matrix-bound vesicles (MBVs), an integral part of the extracellular matrix (ECM), are emerging as pivotal factors in ECM-driven molecular signaling. This study is the first to report the isolation of MBVs from porcine arterial endothelial cell basement membranes (A-MBVs) and thyroid cartilage (C-MBVs), the latter serving as a negative control due to its minimal vascular characteristics. Using Transmission Electron Microscopy (TEM), Nano-Tracking Analysis (NTA), Electrochemical Impedance Spectroscopy (EIS), and Atomic Force Microscopy (AFM), we orthogonally characterized the isolated MBVs.
View Article and Find Full Text PDFEvolution of anti-MICA antibodies after imlifidase infusion for a high immunological risk kidney transplantation.
Hum Immunol
January 2025
Service de Néphrologie, Dialyse et Transplantation, Hôpitaux Universitaires de Strasbourg, Strasbourg, France; Laboratoire d'ImmunoRhumatologie Moléculaire, Institut national de la santé et de la recherche médicale (INSERM) UMR_S1109, Faculté de Médecine, Fédération Hospitalo-Universitaire OMICARE, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Université de Strasbourg, Strasbourg, France; Laboratoire d'Excellence (LabEx) TRANSPLANTEX, Faculté de Médecine, Université de Strasbourg, Strasbourg, France; Institut Thématique Interdisciplinaire (ITI) de Médecine de Précision de Strasbourg, Strasbourg, France. Electronic address:
Imlifidase is an endopeptidase known for cleaving anti-Human Leucocyte Antigen donor-specific antibodies (DSA) to allow high-risk kidney transplantation. However, it lacks comprehensive data regarding its effect on alloantibodies targeting other histocompatibility antigens, such as Major Histocompatibility Complex class I chain-related protein A (MICA). This study describes the dynamics of anti-MICA antibodies following imlifidase administration in a kidney transplant recipient with anti-MICA*002 preformed DSA.
View Article and Find Full Text PDFConformational Antibodies to Proteolipid Protein-1 and Its Peripheral Isoform DM20 in Patients With CNS Autoimmune Demyelinating Disorders.
Neurol Neuroimmunol Neuroinflamm
March 2025
Neuroimmunology Laboratory and Neuroimmunology Research Section, IRCCS Mondino Foundation, Pavia, Italy.
Background And Objectives: Antibodies to proteolipid protein-1 (PLP1-IgG), a major central myelin protein also expressed in the peripheral nervous system (PNS) as the isoform DM20, have been previously identified mostly in patients with multiple sclerosis (MS), with unclear clinical implications. However, most studies relied on nonconformational immunoassays and included few patients with non-MS CNS autoimmune demyelinating disorders (ADDs). We aimed to investigate conformational PLP1-IgG in the whole ADD spectrum.
View Article and Find Full Text PDFThe Application of Regional Citrate Anticoagulation in Protein A Immunoadsorption: A Single-Center Retrospective Cohort Study.
Transfus Med Hemother
December 2024
Department of Nephrology, Xiangya Hospital, Central South University, Changsha, China.
Introduction: Protein A immunoadsorption (IA) is proving to be an effective treatment method for autoimmune diseases and other disorders. Regional citrate anticoagulation (RCA) prevents clotting in extracorporeal circuits without increasing hemorrhage risk in high bleeding risk patients, but there are no specific guidelines for its application in IA. We aimed to evaluate the safety and adverse effects of RCA used in IA therapy.
View Article and Find Full Text PDFAn enzyme-free immunosorbent assay of staphylococcal enterotoxin B using a three-way DNA junction amplifier with an automatic reset function.
Analyst
December 2024
State Key Laboratory of Food Science and Resources, School of Food Science and Technology, Jiangnan University, Wuxi 214122, P.R. China.
A highly sensitive immunoadsorption assay without traditional horseradish peroxidase for signal amplification was developed, utilizing a three-way DNA junction amplifier instead. The formation of a three-way DNA junction and release of trigger DNA with recycling was accomplished by toehold-mediated strand displacement. The fluorescent dye -methyl mesoporphyrin IX, with highly structure-specific binding affinity towards G-quadruplexes, was employed for label-free and simple signal output.
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