RE: RNS28 Apr 2020 08:37
Presentation on Sareum website.....
Diseases such as Covid-19, SARS, MERS, influenza etc. can be fatal due to a “cytokine storm” overreaction of the immune system
• Key cytokines elevated in Covid-19 ICU patients are reported to include:
• IL-2, IL-7, IL-10, G-CSF – all signal via JAK-family kinases
• Clinical trials of JAK-family inhibitors ruxolitinib, tofacitinib, baricitinib in Covid-19 patients are in progress or planned
• Secondary bacterial infections induce IL-1ß and GM-CSF
• GM-CSF reported to improve outcome in patients with pneumonia-associated ARDS
• IL-1ß - GM-CSF pathway blocked by virally-induced IFNa and IFN?
• TYK2/JAK1 inhibition blocks IFNa/? signalling and thus restores GM-CSF levels
• GM-CSF signals via JAK2
• Suggests a TYK2/JAK1 inhibitor that does not inhibit JAK2 to be optimally beneficial
• Sareum’s SDC-1801/2 inhibit TYK2 and JAK1, but not JAK2