Allogeneic umbilical cord-derived mesenchymal stromal cells as treatment for systemic lupus erythematosus: a single-centre, open-label, dose-escalation, phase 1 study.

Background: Patients with systemic lupus erythematosus (SLE) with inadequate responses to standard therapies have unmet therapeutic needs. The immunomodulatory, proangiogenic, and antifibrotic properties of mesenchymal stromal cells support their use in treating patients with SLE. We aimed to assess the safety of a single intravenous infusion of allogeneic umbilical cord-derived mesenchymal stromal cells in patients with severe SLE.

Anti Phospholipase A2 Receptor 1 Antibodies and Membranous Nephropathy Recurrence After Kidney Transplantation.

Introduction: Membranous nephropathy can lead to end-stage kidney disease, for which kidney transplantation is the preferred therapy. However, the disease often relapses, which can impact allograft survival.

Methods: We conducted a prospective multicenter study in France involving 72 patients with membranous nephropathy who were awaiting and then underwent kidney transplantation.

Donor-Specific Antibodies Targeting a Repeated Eplet Mismatch and Outcome After Kidney Retransplantation.

Kidney retransplantations are associated with an increased risk of rejection and reduced graft survival compared to first transplantations, notably due to HLA sensitization. The impact of repeated eplet mismatches on retransplantation outcome has not been investigated. We retrospectively assessed the risk of antibody-mediated rejection (ABMR) and graft loss associated with preformed DSA targeting Repeated Eplet MisMatches (DREMM) in sensitized patients undergoing kidney retransplantation.

HLA-EpiCheck: novel approach for HLA B-cell epitope prediction using 3D-surface patch descriptors derived from molecular dynamic simulations.

Motivation: The human leukocyte antigen (HLA) system is the main cause of organ transplant loss through the recognition of HLAs present on the graft by donor-specific antibodies raised by the recipient. It is therefore of key importance to identify all potentially immunogenic B-cell epitopes on HLAs in order to refine organ allocation. Such HLAs epitopes are currently characterized by the presence of polymorphic residues called "eplets".

The Impact of HLA-A29 Homozygosity and of the Second HLA-A Allele on Susceptibility and Severity of Birdshot Chorioretinitis.

Purpose: HLA-A29 is the main susceptibility factor for birdshot chorioretinitis (BSCR). Our study assessed the impact of the second HLA-A allele alongside HLA-A29 on BSCR severity and susceptibility, focusing on HLA-A29 homozygous patients and those with alleles from the HLA-Aw19 group.

Methods: We included 120 additional cases to our previous analysis of 286 patients with BSCR, all HLA-A29 positive.