Extracorporeal membrane oxygenation (ECMO) during aplasia: A bridge towards myopericarditis recovery after autologous hematopoietic stem cell transplant for systemic sclerosis and recent Coronarovirus disease (COVID-19) vaccination.

Systemic sclerosis (SSc) is a rare autoimmune disease (AD), characterised by early diffuse vasculopathy, activation of the immune response and progressive skin and internal organ fibrosis. In severe progressive diffuse SSc (dSSc), autologous hematopoietic stem cell transplantation (aHSCT) improves survival, despite its own risk of complications and transplant related mortality (TRM). We present herein the case of a dSSc patient undergoing aHSCT with low dose cyclophosphamide conditioning and sudden acute myopericarditis and cardiogenic shock, four weeks after a second mRNA SARS-CoV-2 vaccine (Pfizer) injection.

Management of erythropoietic protoporphyria with cholestatic liver disease: A case report.

Erythropoietic protoporphyria (EPP) is a rare metabolic disease of the heme biosynthetic pathway where an enzymatic dysfunction results in protoporphyrin IX (PPIX) accumulation in erythroid cells. The porphyrins are photo-reactive and are responsible for severe photosensitivity in patients, thus drastically decreasing their quality of life. The liver eliminates PPIX and as such, the main and rare complication of EPP is progressive cholestatic liver disease, which can lead to liver failure.

Determinants of CD19-positive vs CD19-negative relapse after tisagenlecleucel for B-cell acute lymphoblastic leukemia.

Tisagenlecleucel therapy has shown promising efficacy for relapsed/refractory (R/R) B-cell precursor acute lymphoblastic leukemia (BCP-ALL). However, relapses occur in 30-50% of patients. Determinants for CD19 versus CD19 relapses are poorly characterized.

[How to perform leukapheresis for procurement of the staring material used for commercial CAR T-cell manufacturing: A consensus from experts convened by the SFGM-TC].

Chimeric antigen receptor (CAR) T-cells are a new class of cancer treatments manufactured through autologous or allogeneic T cells genetic engineering to induce CAR expression directed against a membrane antigen present at the surface of malignant cells. In Europe, tisagenlecleucel (Kymriah™) has a marketing authorization for the treatment of relapsed/refractory B-cell acute lymphoblastic leukemia in children and young adults and for the relapsed/refractory diffuse large B-cell lymphoma (DLBCL). The marketing authorization for axicabtagene ciloleucel (Yescarta™) is the treatment of relapsed/refractory DLBCL and mediastinal B-cell lymphoma.

Quality risk management of the chimeric antigen receptor T cell pharmaceutical circuit in one of the first qualified European centers.

Background Aims: According to European Directive 2001/83/EC, chimeric antigen receptor T (CAR T) cells belong to a new class of medicines referred to as advanced therapy medicinal products (ATMPs). The specific features and complexity of these products require a total reorganization of the hospital circuit, from cell collection from the patient to administration of the final medicinal product. In France, at the cell stage, products are under the responsibility of a cell therapy unit (CTU) that controls, manipulates (if necessary) and ships cells to the manufacturing site.

[Requirements for academic production of CAR-T cells in accordance with Good Pharmaceutical Practice (GMP). Guidelines from the Francophone Society of Bone Marrow Transplantation and Cellular Therapy (SFGM-TC)].

The extraordinary and unexpected success of cellular immunotherapy using genetically engineered T-cells to express a chimeric antigen receptor (CAR) targeting CD19, in the treatment of refractory or relapsing B-hematological malignancies, has provided a real therapeutic hope. Indeed, remission rates reach more than 80 % in patients at a stage, without any other possibilities of treatment, notably in the child's acute lymphoblastic leukemia. These results, initially resulting from academic research, led to Food and Drug accreditation for market access of two innovative autologous therapy drugs, Kimryah® and Yescarta®.

Safety of CD34 Hematopoietic Stem Cells and CD4 T Lymphocytes Transduced with LVsh5/C46 in HIV-1 Infected Patients with High-Risk Lymphoma.

Although the risk of developing lymphoma has decreased in the highly active antiretroviral therapy era, this cancer remains the major cause of mortality in HIV-infected patients. Autologous hematopoietic stem cell transplantation (ASCT) outcome does not differ for HIV-infected versus HIV-uninfected patients. We propose to develop a new treatment for HIV-associated high-risk lymphoma based on autologous transplantation of two genetically modified products: CD4 T lymphocytes and CD34 hematopoietic stem cells (HSPCs).

[Management of the chronic graft versus host disease: Guidelines from the Francophone society of bone marrow transplantation and cellular therapies (SFGM-TC)].

The Francophone society of bone marrow transplantation and cellular therapy (SFGM-TC) organized the 7th allogeneic hematopoietic stem cell transplantation clinical practices harmonization workshop series in September 2016 in Lille, France. The objective of our workshop is to discuss chronic graft versus host disease and to provide recommendations for the indications and treatment of this condition.

Plasma exchange in the intensive care unit: Technical aspects and complications.

Background: Data on plasma exchange therapy in the intensive care unit (ICU) setting are scarce. We aimed to describe the technical aspects and the adverse events associated with the procedure in critically ill patients.

Methods: All adult patients treated by plasma exchange in the medical ICU of the Saint-Louis university hospital between January 1, 2013 and March 31, 2015 were prospectively included.

Plasma exchange response in 34 patients with severe optic neuritis.

Optic neuritis could lead to severe visual impairment despite corticosteroids. Our aim was to evaluate the rate of visual improvement in patients treated with plasma exchange (PLEX) for severe steroid unresponsive optic neuritis and to identify predictive factors of outcome. Thirty-four patients (41 optic nerves damaged) with remaining visual acuity of 0.

CD24(hi)CD27⁺ and plasmablast-like regulatory B cells in human chronic graft-versus-host disease.

Interleukin 10 (IL-10)-producing B cells (regulatory B cells [Bregs]) regulate autoimmunity in mice and humans, and a regulatory role of IL-10-producing plasma cells has been described in mice. Dysfunction of B cells that maintain homeostasis may play a role in the pathogenesis of chronic graft-versus-host disease (cGVHD) after allogeneic stem cell transplantation. Here, we found a relation between decreased Breg frequencies and cGVHD severity.