Scientists from Washington University in St. Louis have described a role for T cells in the neurodegeneration associated with the tau protein. Tau accumulation in the brain activated microglia. This signal triggered the activation of T cells in other parts of the body, attracting them to the brain. Once there, the interaction of these T cells and microglia produced the neuronal damage seen in Alzheimer’s disease and other tauopathies.
Unexpected behavior of neutrophils unveiled by researchers at Stanford University could lead to a new type of immunotherapy to treat cancer. Although various studies have suggested that these cells are harmful due to their immunosuppressive characteristics, the scientists saw in them an opportunity to redirect them and eliminate tumors.
Researchers at the University of Cape Town have compared the T-cell responses of individuals who were infected with Mycobacterium tuberculosis but were able to control the infection to those who developed active disease. The researchers wrote that the shared antigens in controllers “can be considered as high-priority targets for future vaccine development.” Their results were published online in Nature Medicine on Jan. 5, 2023. In their experiments, the team first sequenced the CDR3β region of the T-cell repertoire in a total of 166 individuals with M. tuberculosis infection who progressed to either TB or controlled infection.
A multiomic analysis of the HIV reservoir has characterized the phenotypic and epigenetic heterogenicity of the virus-infected memory CD4+ T-cell population in people living with HIV taking antiretroviral therapy (ART-PLWH). This is the step towards an ex vivo single-cell atlas for these cells, which could help to design new strategies to eliminate the reservoir.
Turn Biotechnologies Inc. has presented interim preclinical data that demonstrates treating T cells with its proprietary technologies can significantly increase their ability to kill cancer.
At first blush, to say that depression occurs with other diseases may seem like belaboring the obvious. After all, to put it in the bluntest possible terms, it’s sad to be sick. But by looking more closely, it soon becomes clear that the association is stronger than that. The strongest association between depression and other diseases, Stefan Gold told the audience at the European College of Neuropsychopharmacology (ECNP) annual conference in Vienna this week, is “not necessarily the most severe or most immediately life-threatening disorders… [it’s] across the spectrum."
Adaptive Biotechnologies Corp. launched T-Detect Lyme, a T-cell-based clinical test to detect immune response activated by Borrelia burgdorferi, the bacterial species of spirochete that causes Lyme disease. The CLIA-validated laboratory-developed test (LDT) is meant to help diagnose early Lyme disease in adults showing signs and symptoms of the tick-borne illness.
Screening a panel of potential autoantigens, investigators at the Karolinska Institute have identified four autoantigens that are targeted by the T cells of multiple sclerosis patients.
Epitopea Ltd. raised $13.6 million in seed financing to take forward a new cancer immunotherapy platform based on the identification of a new class of tumor-specific antigens encoded by non-canonical genomic sequences.
In its drive to rewrite the rules of the tumor microenvironment so it can capture of the holy grail of successfully battling solid tumors by using T cells, Affini-T Therapeutics Inc. has completed an oversubscribed $175 million. The focus is to develop multiple oncogene driver programs for treating solid tumors such as those with mutated KRAS variants into the clinic, pursue complementary technology licenses to strengthen its cell therapy platform and to optimize its discovery engine.
