Daratumumab Interference in Pretransfusion Testing Is Overcome by Addition of Daratumumab Fab Fragments to Patients' Plasma.

Background: Daratumumab (DARA), an IgG1κ human monoclonal anti-CD38 antibody, is used for the treatment of refractory myeloma for example. Binding of DARA to CD38 on red blood cells (RBCs), however, leads to panagglutination in indirect antiglobulin testing and possibly masks clinically relevant alloantibodies. Dithiothreitol eliminates panreactivity by destroying CD38 but has the drawback of modifying certain blood group antigens and, thereby, impairs the detection of alloantibodies.

GvmR - A Novel LysR-Type Transcriptional Regulator Involved in Virulence and Primary and Secondary Metabolism of .

is a soil-dwelling bacterium able to survive not only under adverse environmental conditions, but also within various hosts which can lead to the disease melioidosis. The capability of to adapt to environmental changes is facilitated by the large number of regulatory proteins encoded by its genome. Among them are more than 60 uncharacterized LysR-type transcriptional regulators (LTTRs).

BPSS1504, a cluster 1 type VI secretion gene, is involved in intracellular survival and virulence of Burkholderia pseudomallei.

Burkholderia pseudomallei is a Gram-negative rod and the causative agent of melioidosis, an emerging infectious disease of tropical and subtropical areas worldwide. B. pseudomallei harbors a remarkable number of virulence factors, including six type VI secretion systems (T6SS).

A novel FK-506-binding-like protein that lacks peptidyl-prolyl isomerase activity is involved in intracellular infection and in vivo virulence of Burkholderia pseudomallei.

Burkholderia pseudomallei is a facultative intracellular bacterial pathogen causing melioidosis, an often fatal infectious disease that is endemic in several tropical and subtropical areas around the world. We previously described a Ptk2 cell-based plaque assay screening system of B. pseudomallei transposon mutants that led to the identification of several novel virulence determinants.