The family of 32 known RNA alphaviruses are present globally, are transmitted by mosquitos, and can cause human disease most commonly arthritogenic or encephalitic in presentation, the latter of which has a fatality rate as high as 35% to 75% depending on host co-morbidities. Previous studies have demonstrated antibody-mediated protection against specific types of alphavirus infections, but broad-spectrum protection against multiple alphavirus has only been reported recently. Even more, the vaccine-mediated elicitation of monoclonal antibodies (MAbs) has yet to be demonstrated until now.
A cluster of deaths in 1993 in the southwestern U.S. that were characterized by an acute respiratory failure and shock were determined to be due to hantaviruses, which are RNA zoonotic viruses typically transmitted by a rodent vector. Given a fatality rate ranging from 15% to 40% and capacity to potentially spread through human-to-human contact, it is possible that the public health risks posed by these agents have been underestimated.
Albatroz Therapeutics Pte Ltd. has secured $3 million in funding to accelerate the development of therapeutic antibodies against a novel target that degrades the extracellular matrix, a key contributor to cancer and arthritis.
Two neutralizing monoclonal antibodies isolated from volunteers vaccinated against the yellow fever virus controlled the viremia and prevented severe disease and death in hamsters and primates.
Immunoprecise Antibodies Ltd.'s Talem Therapeutics LLC subsidiary has entered into a research collaboration and exclusive option license agreement with Xyphos Biosciences Inc., a wholly owned subsidiary of Astellas Pharma Inc.
Eureka Therapeutics Inc. has entered into a license agreement with the National Cancer Institute (NCI) to develop and commercialize a novel antibody targeting mesothelin (MSLN) in combination with Eureka's proprietary Artemis T-cell receptor platform.
Exevir Bio BV has announced research detailing a novel, highly potent, anti-S2 camelid single-domain antibody, discovered at the VIB-Ugent Center for Medical Biotechnology, and developed as a candidate drug molecule by Exevir as XVR-013.
Autoantibodies are typically not good news. But a group of researchers from Bellinzona, Switzerland, have observed that the presence of autoantibodies against chemokines, a special class of cytokines, is associated with mild disease and less risk of developing long COVID. “Our hypothesis was that antibodies to chemokines, if they existed, would also be associated with a negative outcome of the disease. But, what we found, in fact, was the exact opposite of what we were predicting,” Davide Robbiani, director of the Institute for Research in Biomedicine, told BioWorld.
Even its name is a testament to how enigmatic the tingible macrophage has been. Tingible, which means stainable, certainly gives no clues to its functions – but was, at least, one thing that was known about the cells. Now, scientists at the Garvan Institute of Medical Research have tracked the lifecycle and function of tangible macrophages in the lymph nodes, with implications for understanding autoimmune disorders, which are still poorly understood. Published March 2, 2023, in the journal Cell, the study highlights intravital imaging techniques the scientists used to observe how macrophages formed within the lymph nodes and how they behaved in real time.
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