HTRF HMGB1, IL-1β AND IL-18 ASSAYS DISCRIMINATE BETWEEN INFLAMMASOME TRIGGERED PYROPTOSIS, AND NECROPTOSIS / I SAGGI HTRF HMGB1, IL-1β E IL-18 DISCRIMINANO TRA INFIAMMASONE TRIGGERATA PIROPOPTOSI E NECROPTOSI
HTRF HMGB1, IL-1β AND IL-18 ASSAYS DISCRIMINATE BETWEEN INFLAMMASOME TRIGGERED PYROPTOSIS, AND NECROPTOSIS / I SAGGI HTRF HMGB1, IL-1β E IL-18 DISCRIMINANO TRA INFIAMMASONE TRIGGERATA PIROPOPTOSI E NECROPTOSI Segnalato dal Dott. Giuseppe Cotellessa / Reported by Dr. Giuseppe Cotellessa Two phenomena discovered very recently complete the panorama of cell death, solving the borderline cases between necrosis and pyroptosis. Inflammatory responses are characterized by the release of endogenous DAMPs also known as alarmins. During non-apoptotic programmed or regulated cell death, such as pyroptosis and necroptosis, HMGB1 is released along with other pro-inflammatory molecules. Pyroptosis relies on two steps. The first step is called “priming”. Following TLR stimulation (e.g LPS), the expression of NLRP3 and pro-IL-1β is upregulated through NF-kB transcription factor. In the second “activation” step, DAMPs such as extracellular ATP, or the bacterial toxin nigericin, are sensed by