Researchers have developed an algorithm that was able to create functional enzymes from scratch after being trained with the amino acid sequences of existing enzymes in the same class. Researchers from the University of California at San Francisco described their method online in Nature Biotechnology on Jan. 26, 2023. The method, which its creators have named Progen, can generate “protein sequences with a predictable function across large protein families,” according to the authors.

Chimeric antigen receptor (CAR) T cells are astounding. In B-cell cancers, they have been transformative. Yet engineering-wise, CAR T cells are in the equivalent of the Model T era. CAR T-cell engineering has already evolved, with the addition of costimulatory domains, which affect cell expansion and signaling. But once the cells are injected into a patient, there is really no way to affect their behavior.

Stimulating the brain via implanted electrodes is used to treat both movement disorders such as Parkinson’s disease, and some psychiatric conditions such as obsessive compulsive disorder. But researchers are also working on ways to make such implanted electrodes listen instead of talk – and translate neuronal signals for people that have lost the ability speak, or the ability to move.

Stimulating the brain via implanted electrodes is used to treat both movement disorders such as Parkinson’s disease, and some psychiatric conditions such as obsessive compulsive disorder. But researchers are also working on ways to make such implanted electrodes listen instead of talk – and translate neuronal signals for people that have lost the ability speak, or the ability to move. At the Neurophysiology: Decoding and Neural Processing II session of the 2022 Annual Meeting of the Society for Neuroscience in San Diego, researchers from the Wyss Center for Bio and Neuroengineering (Switzerland) presented a device implanted in the brain that allowed restoration of movement and speech.

Fibroblasts expressing the tumor suppressor p16INK4a (a marker of senescence) stimulated lung stem cells from young mice to repair damaged tissue, according to a study from the University of California, San Francisco (UCSF). The finding calls into question therapies that eliminate these senescent cells without considering their beneficial role in tissue homeostasis.