Impact of FCGR2A rs1801274 and IL-6R rs2228145 polymorphisms on tocilizumab response in the Iranian population with severe COVID-19.

Background: Although several genetic biomarkers have been reported in the tocilizumab (TCZ) response in rheumatoid arthritis, no studies have addressed the pharmacogenomics effect of TCZ in COVID-19.

Methods: In this prospective longitudinal study, 95 individuals with severe COVID-19 were selected between 2020-2022. The recovery process was measured at 24 h, 48 h, and 10 days before and after taking TCZ.

Ofatumumab and Granzyme B as immunotoxin against CD20 antigen.

Unlabelled: Anti-CD20 antibodies such as ofatumumab has demonstrated efficacy in relapsed/refractory chronic lymphocytic leukemia, are among the most successful therapies to date. In this study, we have designed an immunotoxin composed of Granzyme B and the high affinity variant of Ofatumumab. Different simulation software applied to explore the structure of Granzyme B, a serine protease in cytotoxic lymphocytes granules as an apoptosis mediator was attached to its specific antibody structure (Ofatumumab) via an adaptor sequence.

Atezolizumab and granzyme B as immunotoxin against PD-L1 antigen; an insilico study.

Unlabelled: CD274 gene encodes programmed death-ligand 1 (PD-L1) protein, also known as B7 homolog 1 (B7-H1), which is a crucial hallmark for highly proliferation cells including cancer cells. PD-1 and PD-L1 interaction is assumed as a negative regulator for immune response which can inhibit the T cell growth and cytokine secretion and supports tumor cells evasion from immune system. therefore, PD-L1 could be assumed as a candidate target for immune-therapy.

Homology modeling of a Camelid antibody fragment against a conserved region of Acinetobacter baumannii biofilm associated protein (Bap).

Background: VHH or the single-domain antibodies (sdAb), are studied for therapeutic applications in cancers, infections and other diseases. In our previous study, we expressed and produced a soluble VHH against a conserved region of Acinetobacter baumannii biofilm associated protein (Bap). The present study was undertaken to predict the 2D and 3D structure of the receptor and ligand as well as residues involved in their interactions.