SciTech Chronicles . . . .May 8th, 2025

https://bit.ly/stc050825

#SIK3 #NSS #profile #kinase #pathogens #intercontinental #balloons #"35 kilometers" #"jurema preta" #dimethyltryptamine #"no ban" #"Mimosa tenuiflora" #TYK2 #psoriasis #inhibitor #signaling #Friendship #"Lamprotornis superbus" #reciprocal #DNA

SciTech Chronicles. . . . . . . . .May 8th, 2025

You've got two good eyes and you still can't see. Vol II No 32 455 links Curated Mission Control RSS Feed Wordpress SubStack Comments Buy...

Brain health: Immune enzyme linked to toxic tau buildup in Alzheimer’s disease

Researchers found that the immune enzyme TYK2 adds a tag to tau protein, causing toxic buildup in the brain. Blocking TYK2 reduced harmful tau and neuron damage in mice, offering a potential new target for Alzheimer’s treatment.

PsyPost

#rheumtwitter #sarcoid #rheumatology #Deucravacitinib
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RT @SteZhao
🚨TYK2 inhibition is associated with reduced risk of sarcoidosis.

Suggesting that #TYK2 inhibitors eg #deucravacitinib - trialed for psoriasis/PsA - may be worth testing for treatment of #sarcoidosis - chronic condition for which few drugs are approved.
https://ard.bmj.com/content/82/3/445
https://twitter.com/SteZhao/status/1639640115092893696

Genetically proxied TYK2 inhibition is associated with reduced sarcoidosis susceptibility

Sarcoidosis is a multisystem inflammatory disorder of unknown aetiology that can affect any organ, including the lung, joints and skin. Clinical presentation can be highly heterogeneous and lead to significant morbidity and mortality.1 Glucocorticoids remain the cornerstone of pharmacological therapy but are limited by toxicities with long-term use. Although steroid-sparing agents are available, there are no licensed therapeutics for sarcoidosis. Many cytokines implicated in sarcoidosis (eg, gamma interferon and other type 1 cytokines) signal via the JAK-STAT pathway, and inhibition of this pathway has proved successful in several immune-mediated inflammatory diseases (IMIDs). Interestingly, tofacitinib, a JAK-STAT inhibitor, was associated with skin improvement and suppression of type 1 cytokines in an open-label trial of 10 patients with cutaneous sarcoidosis.2 However, these preliminary findings await confirmation by phase III trials and are caveated by tofacitinib’s potential adverse cardiovascular profile. Inhibition of TYK2, one member of the JAK family, has shown promise for IMIDs (eg, deucravcitinib for psoriasis and psoriatic arthritis (PsA)).3 Germline mutations causing loss-of-function of genes encoding drug targets have been used to correctly predict the effect of their pharmacological inhibition4; therefore, we used a naturally occurring loss-of-function mutation to evaluate the therapeutic potential …

Annals of the Rheumatic Diseases
Takeda Bets $4B Upfront on Nimbus' TYK2 Inhibitor | BioSpace

On the heels of positive Phase IIb data in plaque psoriasis, Takeda is acquiring both the therapy and Nimbus Lakshmi, a wholly owned subsidiary, in a potentially $6 billion deal.

BioSpace