9 results match your criteria: "France david.klatzmann@sorbonne-universite.fr.[Affiliation]"

A randomized double-blind placebo-controlled trial of low-dose interleukin-2 in relapsing-remitting multiple sclerosis.

J Neurol

September 2023

Immunology-Immunopathology-Immunotherapy (i3)-UMRS_959, Sorbonne Université- INSERM, Paris, France.

Background: Multiple sclerosis (MS) is associated with regulatory T cells (Tregs) insufficiency while low-dose interleukin-2 (IL2) activates Tregs and reduces disease activity in autoimmune diseases.

Methods: We aimed at addressing whether IL2 improved Tregs from MS patients. MS-IL2 was a single-center double-blind phase-2 study.

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Objectives: A regulatory T cell (Treg) insufficiency due to shortage of interleukin-2 (IL-2) is central to the pathophysiology of systemic lupus erythematosus (SLE). We performed a multicentre, double-blinded, randomised, placebo-controlled phase II proof-of-concept trial to evaluate the efficacy of low-dose IL-2 therapy in patients with SLE having moderate-to-severe disease activity while receiving standard treatment.

Methods: We randomly assigned 100 patients in a 1:1 ratio to receive either 1.

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Interleukin-2 and regulatory T cells in rheumatic diseases.

Nat Rev Rheumatol

December 2021

Sorbonne Université, INSERM, Immunology-Immunopathology-Immunotherapy (i3), Paris, France.

Failure of regulatory T (T) cells to properly control immune responses leads invariably to autoimmunity and organ damage. Decreased numbers or impaired function of T cells, especially in the context of inflammation, has been documented in many human autoimmune diseases. Restoration of T cell fitness and/or expansion of their numbers using low-dose natural IL-2, the main cytokine driving T cell survival and function, has demonstrated clinical efficacy in early clinical trials.

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Impaired Activated/Memory Regulatory T Cell Clonal Expansion Instigates Diabetes in NOD Mice.

Diabetes

April 2021

Sorbonne Universite, INSERM, UMRS959 Immunology-Immunopathology-Immunotherapy Laboratory, Paris, France

Article Synopsis
  • Regulatory T cell (Treg) insufficiency in NOD mice leads to the destruction of insulin-producing β-cells by overactive Teffs, resulting in autoimmune diabetes.
  • Analysis of TCR repertoires showed that NOD mice had greater Treg and Teff diversity compared to B6 mice, but lacked certain expanded clonotypes found in B6.
  • IL-2 treatment in NOD mice restored the expansion of specific amTreg clonotypes, helping prevent diabetes, while having minimal impact on nTregs and Teffs, highlighting a potential therapeutic target for autoimmune diseases.
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Low-dose IL-2 in children with recently diagnosed type 1 diabetes: a Phase I/II randomised, double-blind, placebo-controlled, dose-finding study.

Diabetologia

September 2020

Clinical Investigation Center for Biotherapies and Inflammation-Immunopathology-Biotherapy Department (i2B), AP-HP.Sorbonne Université, Pitié-Salpêtrière Hospital, 83 Bd de l'Hôpital, F-75013, Paris, France.

Article Synopsis
  • The study focused on the effects of low-dose IL-2 on activating regulatory T cells (Tregs) in children with recently diagnosed type 1 diabetes, aiming to improve immune regulation over a year-long treatment.
  • Conducted as a Phase I/II clinical trial, 24 children were randomly assigned to receive varying doses of IL-2 or placebo, with results measured primarily by the change in Tregs after 5 days.
  • Results showed no serious side effects, with mild reactions mostly at the injection site; higher doses of IL-2 were associated with significant increases in Tregs compared to placebo.
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Response to: 'Regulatory T cell frequencies in patients with rheumatoid arthritis are increased by conventional and biological DMARDs but not by JAK inhibitors' by Meyer .

Ann Rheum Dis

December 2021

AP-HP, Hôpital Pitié-Salpêtrière, Biotherapy (CIC-BTi) and Inflammation-Immunopathology-Biotherapy Department (i2B), F-75013, Paris, France, AP-HP, Paris, France

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Objective: Regulatory T cells (Tregs) prevent autoimmunity and control inflammation. Consequently, any autoimmune or inflammatory disease reveals a Treg insufficiency. As low-dose interleukin-2 (ld-IL2) expands and activates Tregs, it has a broad therapeutic potential.

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IL-2 antibodies in type 1 diabetes and during IL-2 therapy.

Diabetologia

September 2018

AP-HP, Groupe Hospitalier Pitié-Salpêtrière, Biotherapy (CIC-BTi) and Inflammation-Immunopathology-Biotherapy Department (i2B), Paris, France.

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