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Two recent studies reveal a crucial role for the cation channel TRPM2 in sensing warm temperatures, both in the thermoregulatory center of the brain and in the somatosensory system.
Ubiquitin chains assembled via the N-terminal methionine (Met1 or linear ubiquitin), conjugated by the linear ubiquitin chain assembly complex (LUBAC), participate in NF-κΒ-dependent inflammatory signaling and immune responses. A recent report in Cell finds that OTULIN, a deubiquitinase that selectively cleaves Met1-linked ubiquitin chains, is essential for restraining inflammation in vivo.
A recent paper published in Nature demonstrates a multifaceted relation between enteric glial cells (EGC), intestinal epithelia, and ILC3, via the EGC release of neurotrophic factors, a structurally related group of ligands within the TGF-β superfamily of signaling molecules and IL-22 produced by ILC3.
In a recent paper published in Cell, Matheoud et al. demonstrated that, in response to cellular stress, self-antigens can be extracted from mitochondria via mitochondrial-derived vesicles and presented at the cell surface to trigger an immune response; this pathway, termed mitochondrial antigen presentation (MitAP), is repressed by PINK1 and Parkin. These findings implicate autoimmune mechanisms in Parkinson's disease.
