In a recent work published in Nature, Wang et al. reveal how protein kinase A and calcineurin dynamically regulate the daily duration of sleep and wake periods at excitatory post-synapses in the brain. This study uncovers key molecular mechanisms offering new insights into the enzymatic control of sleep homeostasis.
Recent research published in Science reveals that menadione, a precursor to vitamin K, induces a unique cell death pathway called triaptosis by oxidizing phosphatidylinositol 3-kinase PIK3C3/VPS34. This oxidation leads to endosomal dysfunction, highlighting how excessive oxidative stress can compromise cellular structures and activate specific cell death pathways.
The beneficial role of gasdermin activation and pyroptosis induction in antitumor immunity has been implicated by several studies; however, the question of how to specifically and efficiently activate cancer cell death while minimizing toxicity to host cells remains unsolved. In a recent paper published in Cell, Wu and Lieberman groups identified a GSDMD agonist that can induce low-level pyroptosis in cancer cells but not in host cells, offering potential applications in cancer vaccine development and therapy in combination with checkpoint blockade.
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