Targeting CD45 by gene-edited CAR T cells for leukemia eradication and hematopoietic stem cell transplantation preconditioning.

Hematopoietic stem cell transplantation (HSCT) is widely used to treat patients with life-threatening hematologic and immune system disorders. Current nontargeted chemo-/radiotherapy conditioning regimens cause tissue injury and induce an array of immediate and delayed adverse effects, limiting the application of this life-saving treatment. The growing demand to replace canonical conditioning regimens has led to the development of alternative approaches, such as antibody-drug conjugates, naked antibodies, and CAR T cells.

Inability of Ogataea parapolymorpha pho91-Δ mutant to produce active methanol oxidase can be compensated by inactivation of the PHO87 gene.

Cells of the methylotrophic yeast Ogataea parapolymorpha have two genes encoding low-affinity phosphate transporters: PHO87, encoding the plasma membrane transporter, and PHO91, encoding a protein, which is homologous to the Saccharomyces cerevisiae vacuolar membrane transporter. Earlier, we reported that inactivation of PHO91 in O. parapolymorpha interferes with methanol utilization due to the lack of activity of methanol oxidase encoded by the MOX gene.

Extended characterization of anti-CD19 CAR T cell products manufactured at the point of care using the CliniMACS Prodigy system: comparison of donor sources and process duration.

Background Aims: The CliniMACS Prodigy closed system is widely used for the manufacturing of chimeric antigen receptor T cells (CAR-T cells). Our study presents an extensive immunophenotypic and functional characterization and comparison of the properties of anti-CD19 CAR-T cell products obtained during long (11 days) and short (7 days) manufacturing cycles using the CliniMACS Prodigy system, as well as cell products manufactured from different donor sources of T lymphocytes: from patients, from patients who underwent HSCT, and from haploidentical donors. We also present the possibility of assessing the efficiency of transduction by an indirect method.

Novel hemizygous variant leads to combined immunodeficiency with defective platelet calcium signaling and cell mobility.

Background: To date, fewer than 20 patients have been identified as having germline biallelic mutations in the coronin-1A gene () and its protein with clinical features of combined immunodeficiency characterized by T-cell lymphopenia ranging from the severe phenotype to the mild phenotype, recurrent infections, and lymphoproliferative disorders. However, the effects of CORO1A protein disruption on actin-dependent functions in primary cells have not been fully delineated.

Objective: We sought to characterize the underlying defects of actin-dependent cellular functions in a female patient with combined immunodeficiency caused by a novel missense variant in the gene in combination with a heterozygous microdeletion of chromosome 16p11.

The Extracellular Vesicles Containing Inorganic Polyphosphate of Yeast upon Growth on Hexadecane.

The cell wall of yeast grown on presence of hexadecane as a sole carbon source undergoes structural and functional changes including the formation of specific supramolecular complexes-canals. The canals contain specific polysaccharides and enzymes that provide primary oxidization of alkanes. In addition, inorganic polyphosphate (polyP) was identified in canals.