A large epidemiological study published in the July 6, 2020, advance online issue of The Lancet found that most individuals who became infected with SARS-CoV-2 developed antibodies to the virus, confirming that infection usually results in at least a short-term immune response.
The checkpoint molecule CD47 has high hopes riding on it in oncology as being the innate immune equivalent of PD-1. Multiple companies are developing blockers against CD47 and/or its ligand, SIRPa, for the treatment of various tumors.
BioWorld looks at translational medicine, including: Potassium channel distancing fights stroke; ASO approach fixes myelin; FMF is Mediterranean’s SCD; Calpain-2 in common, rare neurodegeneration; Antitoxin vaccine fights S. aureus; Noncoding mutations contribute to heart disease; Good vs. evil in the synovial joint; Necrosis has role in post-flu bacterial infections; Macrophage crosstalk inflames fat.
LONDON – Scientists investigating the impact of SARS-CoV-19 on protein expression in human cells have shown that infected cells develop virus-laden membrane protrusions, or filopodia, which may explain the rapidity of viral spread through the body.
Technical challenges at the annual meeting of the International Society for Stem Cell Research (ISSCR) meeting led to at least one lively exchange of stem cell jokes in the chat box as the audience waited for talks to resume, including stem cell parental advice: “You can be anything you want when you grow up!”
On June 17, the FDA approved checkpoint blocker Keytruda (pembrolizumab, Merck & Co. Inc.) “for the treatment of adult and pediatric patients with unresectable or metastatic tumor mutational burden-high (TMB-H) [?10 mutations/megabase (mut/Mb)] solid tumors, as determined by an FDA-approved test, that have progressed following prior treatment and who have no satisfactory alternative treatment options.”
BioWorld looks at translational medicine, including: Liver-derived protein helps lung, kidney repair; Multiracial study gives new diabetes insights; New way to target drugs, independently of drug target; Microbiome-produced metabolites improve gut health; Universal flu vaccine more challenging than anticipated; The bow ties that bind; FOXO1 regulates HIV latency; Patient genetic variants linked to wound microbiomes; New COPD target.
By targeting chimeric antigen receptors (CARs) to a senescence marker, researchers at Memorial Sloan-Kettering Cancer Center have developed a CAR T cell that had beneficial effects in mouse models of both liver fibrosis and lung cancer.