Researchers have gained new insights into physiological mechanisms that protect against blood clotting in immobilized individuals by studying animals that stay immobile for a good chunk of the year at a time: hibernating bears. “As a clinician, if you think about immobility, you always think about thrombosis,” Tobias Petzold told BioWorld. But his team’s work, which was published in the April 13, 2023, issue of Science, demonstrated that “immobility can trigger antithrombotic mechanisms.”

RNA editing in schizophrenia (SCZ)-associated genes was decreased in postmortem brains of individuals of European descent, according to a study from the University of California, Los Angeles (UCLA). The scientists obtained the RNA editome from SCZ brains to detect the sequence changes in their RNA and observed hypoediting in noncoding regions related to mitochondrial function, such as the mitofusin-1 (MFN1) gene.

Researchers at the Dana-Farber Cancer Institute have been able to identify proteins that were released from muscles during exercise in relatively small quantities. Using their method, the team was able to demonstrate that the neurotrophic factor prosaposin was produced during exercise. Prosaposin is “a well-known CNS neurotrophic factor, but has never been seen to come out of muscle or fat,” Bruce Spiegelman told BioWorld. Spiegelman is a researcher at the Dana-Farber Cancer Institute and Stanley J. Korsmeyer Professor of Cell Biology and Medicine at Harvard Medical School.

Alzheimer’s disease has a higher incidence in women. This sex difference was associated with a modification of certain proteins of the immune system. According to a recent study, the drop in estrogen with menopause increased the expression in the brain of a neurotransmitter, nitric oxide (NO), generating the S-nitrosylation of complement factor C3 (abbreviated SNO-C3), which activated the microglia.

Protein profiling startup Nomic Bio has secured $17 million in an oversubscribed series A financing led by Lux Capital. The funds will be used to expand the company’s servicing and manufacturing labs in Montreal and Boston, to broaden access to its proteomic platform by scaling profiling capacity to 100,000 samples per quarter starting in the second quarter of 2022 and by scaling its protein-detection method, called nELISA, to 500 on-boarded proteins.

Isoplexis Corp. has debuted on the Nasdaq, pricing its initial public offering of 8.3 million common shares at $15.00 per share. Shares of the proteomics platform developer (NASDAQ:ISO) were trading slightly under at $13 following the listing. The offering is expected to close on Oct. 12, 2021. The Branford, Conn.-based company is aiming to raise $125 million from the public market to accelerate commercialization of its cell analysis platforms. The single-cell proteomics systems are automated, benchtop products designed to reduce therapeutic development timelines.

Prophet, Oncohost Ltd.’s artificial intelligence-driven proteomics profiling platform, predicted response to immune checkpoint inhibitor (ICI) therapy in non-small-cell lung carcinoma (NSCLC) patients in a study presented at the European Society for Medical Oncology Virtual Congress 2021. While ICI can generate a significant positive response in some patients with advanced NSCLC, in others the therapy promotes tumor growth, making identification of likely responders prior to treatment critical.

Intervenn Biosciences raised $201 million in a series C financing led by new investors Softbank Group, Heritage Provider Network, Irving Investors and Highside Capital Management. The proceeds are earmarked to speed development and commercialization of Dawn, a liquid biopsy assay for immune checkpoint inhibitor prediction, and to expand the network of partnerships on the company’s artificial intelligence (AI)-driven glycoproteomics platform.