The PD-1 receptor, a major immune checkpoint inhibitor whose signaling is the target of multiple blockbuster anticancer drugs, differs functionally between rodents and humans in previously unknown ways. Researchers from the University of California, San Diego, and co-authors at the Chinese Academy of Sciences and the National Cancer Institute reported these findings in the Jan. 3, 2025, online issue of Science Immunology.

Cyrus Biotechnology Inc. has selected CYR-212, an engineered next-generation reduced-immunogenicity and half-life extended immunoglobulin G (IgG) protease, as a clinical development candidate for chronic IgG-driven autoimmune disease.

Ophthalmic diseases specialist Oculis Holding AG announced positive phase II data showing its serum-glucose corticoid kinase-2 activator OCS-05 protected nerve cells and improved vision in patients with acute optic neuritis. The placebo-controlled, randomized trial assessed the neuroprotective effect of OCS-05 in combination with standard-of-care steroid injections, against steroids alone, with a benefit seen in preserving both ganglions and retinal cell nerve fibers.

Institut Pasteur Korea has signed a memorandum of understanding (MOU) with four Pohang University of Science and Technology (POSTECH)-affiliated research institutes with the aim of pursuing joint research on mRNA vaccine and treatment development.

Multisystem inflammatory syndrome in children (MIS-C) is a rare and severe condition following SARS-CoV-2 infection associated with intestinal manifestations. The most common clinical features include fever, abdominal pain, rash, myocardial dysfunction and elevated inflammatory biomarkers.