3D PRINTING A cool path for making glass Printing glass with additive manufacturing techniques could provide access to new materials and structures for many applications. (2023) 10.1126/scisignal.adf6696, 10.1126/scisignal.adh5460 T CELLS T cells contribute to psoriasis Psoriasis is a chronic inflammatory skin disorder that can be triggered by infection with group A Streptococcus (GAS). CD1a is a cell surface protein that presents lipid antigens to T cells and is known to be linked to psoriasis. [Extracted from the article]