Paul Baker
@pauljbaker.bsky.social
480 followers 310 following 7 posts
Cells go in, western blots come out. Autoinflammatory diseases, Innate immunology, Molecular biology, Cytokines
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pauljbaker.bsky.social
Shouya’s amazing efforts have provided functional validation of many reported variants of (previously) unknown significance in the #NLRP3 #inflammasome, not only uncovering interesting aspects of NLRP3 biology, but also hopefully leading to improved diagnosis and treatment of patients with CAPS!
pauljbaker.bsky.social
Congratulations to @shouyafeng.bsky.social @sethlucianmasters.bsky.social and the entire team on our lab’s latest publication out now in @natimmunol.bsky.social!
#autoinflammation #autoinflammatory
sethlucianmasters.bsky.social
A large dataset we hope is helpful for patients who may have CAPS, an #autoinflammatory condition associated with genetic variants in NLRP3. Lots of "variants of uncertain significance" now have a specific readout from our in vitro assay which can help with clinical diagnosis.
rdcu.be/d9iRG
Mechanisms of NLRP3 activation and inhibition elucidated by functional analysis of disease-associated variants
Nature Immunology - Gain-of-function variants in the gene encoding NLRP3 lead to constitutive inflammasome activation and excessive IL-1β production. In this resource, authors perform...
rdcu.be
Reposted by Paul Baker
Reposted by Paul Baker
sethlucianmasters.bsky.social
Looks like a great inflammazoom coming up Dec 16 with @inflammasomelab.bsky.social and Si Ming Man! These talks are great for everyone interested in autoinflammation.

Register here to access the live session as well as on-demand talks from past sessions: events.abcam.com/AnYVL?rt=Qlp...
InflammaZoom
Join me online at the next InflammaZoom webinar!
events.abcam.com
Reposted by Paul Baker
inflammasomelab.bsky.social
Have you ever wondered whether pyroptotic corpses have functions beyond the grave? We made the surprising discovery that pyroptotic corpses are flagged by #filopodia to alert #DendriticCells they need autopsy. A short Bluetorial (1/13)👇with movies!
Link: rdcu.be/d2mjm
Pyroptotic cell corpses are crowned with F-actin-rich filopodia that engage CLEC9A signaling in incoming dendritic cells
Nature Immunology - Pyroptotic cell death results in inflammation. Here the authors find that F-actin-rich structures formed during macrophage pyroptosis persist after cell death to activate...
rdcu.be
pauljbaker.bsky.social
Thanks Matt! Our semi-regular debriefs all along the way were invaluable!
pauljbaker.bsky.social
Thanks to all of our amazing coauthors including @kerryhilligan.bsky.social, @danbarberphd.bsky.social for spending many, many hours tolerating me in the BSL3 lab, helping with experiments and data analysis, and providing valuable advice and moral support!
pauljbaker.bsky.social
More details in this 🧵 from my powerhouse PI @mayerbarber.bsky.social whose foresight and guidance got us to this fantastic manuscript!
mayerbarber.bsky.social
Best #Nikolaus 🎅! Our paper on how the 🫁 microenvironment can shape #innate immunity against #viruses is out @sciimmunology.bsky.social This was a herculean effort brilliantly led by @pauljbaker.bsky.social who singlehandedly established the model in the lab during the pandemic. 🧪 #Immunosky 1/9
Graphical summary of our paper.  In mice, prior lower airway exposure to diverse inflammatory stimuli, including chronic bacterial infections such as M. tuberculosis, acute bacterial infections such as pulmonary S. aureus, viral infections such as Influenza A, type-II allergic responses such as the OVA-Alum model, activation of pulmonary TLR9 by CpG or pulmonary TLR1/2 by Pam3CSK4
 leads to reduced viral burden upon subsequent infection with SARS-CoV-2 (SCV2). (2) This SCV2 restriction occurs prior to induction of SCV2-specific adaptive immune responses 
and is mediated through innate immune responses, including the induction of IFN-I, TNFα and IL-1 and sustained changes to the TRM (Tissue resident macrophage) cellular 
compartment and the pulmonary epithelium. (3) Innate cytokine and TLR signaling to both recruited immune cells and the pulmonary epithelium creates a microenvironment in the 
lung that limits early replication of SCV2. IFN-I signaling to pulmonary ECs (epithelial cells) increases expression of interferon-stimulated genes, that likely cell-intrinsically limit viral
 replication. TNF- or IL-1 suppress SCV2 independently of IFN-I signaling. TNF acts exclusively through radio-resistant cell types such as the lung epithelium, whereas IL-1 affords 
control both direct and indirectly, through either stromal and hematopoietic cell types, to restrict overall early SCV2 burden.
pauljbaker.bsky.social
Excited to share this paper from my post-doc at @niaidnews.bsky.social out now in Science Immunology! We show that recent or ongoing 🫁 infections or other pulmonary environmental exposures at the time of infection with SARSCoV2 can vastly influence early replication of the virus in mice.
The inflammatory microenvironment of the lung at the time of infection governs innate control of SARS-CoV-2 replication
Recent or ongoing respiratory inflammation in the lung regulates antiviral immune responses to SARS-CoV-2.
www.science.org
Reposted by Paul Baker
immunoeditor.bsky.social
The December issue of #Science #Immunology is out now! This week: #MAITcell plasticity in #antibacterial immunity; how #inflammatory status of #lung before #COVID19 infection impacts #viral control; & #helminths utilize glutamate dehydrogenase to prevent #AAMs & #TH2 activation!

bit.ly/SI_DEC_24
This month’s cover features an adult female Hpb in the center, flanked by adult Hpb males with their characteristic caudal bursae on the left and right sides, crescent-shaped Hpb larvae from various stages surrounding the adults, and Hpb eggs in the four corners of the image.