Jordan Jastrab
@jordanjastrab.bsky.social
ID physician-scientist at Brigham & Women's Hospital, postdoc in the Jon Kagan lab studying interactions between bacteria and the innate immune system. Easily bribed with food.
Reposted by Jordan Jastrab
#InflammasomePower! 💥New paper alert💥 How is NLPR3 primed & activated in chronic non-communicable inflammatory diseases? With @oceanedufies.bsky.social &co we show that chronic exposure to oxPAPC drives NRF2 activation that primes & activates NLRP3 sustaining #atherosclerosis in mice & humans! 👇👇👇
Chronic sensing of host-derived lipids is an all-in-one signal that primes and activates NLRP3.
Activation of the NLRP3 inflammasome leads to the production of bioactive interleukin (IL)-1β fostering atherosclerosis. The current dogma is that NLRP3 must be first primed by microbial stimuli, know...
www.biorxiv.org
October 31, 2025 at 3:49 PM
#InflammasomePower! 💥New paper alert💥 How is NLPR3 primed & activated in chronic non-communicable inflammatory diseases? With @oceanedufies.bsky.social &co we show that chronic exposure to oxPAPC drives NRF2 activation that primes & activates NLRP3 sustaining #atherosclerosis in mice & humans! 👇👇👇
Reposted by Jordan Jastrab
We’re excited to report work led by postdoc Jennifer Porat in the lab, finding that DNA accumulates on the surface of living cells and that the secreted extracellular protein DNASE1L3 can modulate its levels on B and T cells. With a new twist for ATAC-seq as well www.biorxiv.org/content/10.1...
DNASE1L3 surveils mitochondrial DNA on the surface of distinct mammalian cells
The extracellular space is a critical environment for discriminating self versus non-self nucleic acids and initiating the appropriate immune responses through signaling cascades to relay information ...
www.biorxiv.org
October 7, 2025 at 1:22 PM
We’re excited to report work led by postdoc Jennifer Porat in the lab, finding that DNA accumulates on the surface of living cells and that the secreted extracellular protein DNASE1L3 can modulate its levels on B and T cells. With a new twist for ATAC-seq as well www.biorxiv.org/content/10.1...
Now that I am no longer dealing with an infant with an infection (non-staphylococcal), time for a proper 🧵! If you’re interested in some combination of Staphylococcus aureus, innate immune sensing of bacteria, inflammasomes, and cell wall modifications, read on…
September 29, 2025 at 2:32 AM
Now that I am no longer dealing with an infant with an infection (non-staphylococcal), time for a proper 🧵! If you’re interested in some combination of Staphylococcus aureus, innate immune sensing of bacteria, inflammasomes, and cell wall modifications, read on…
Reposted by Jordan Jastrab
Notably, WTA is not a PAMP.
Rather, WTA controls the release of bacterial DNA into cells, where it can act as a PAMP for AIM2 and cGAS. How many other meta-PAMPs are out there?
@jordanjastrab.bsky.social @harvardmed.bsky.social @bostonchildrens.bsky.social @harvardmicro.bsky.social
Rather, WTA controls the release of bacterial DNA into cells, where it can act as a PAMP for AIM2 and cGAS. How many other meta-PAMPs are out there?
@jordanjastrab.bsky.social @harvardmed.bsky.social @bostonchildrens.bsky.social @harvardmicro.bsky.social
September 26, 2025 at 2:02 PM
Notably, WTA is not a PAMP.
Rather, WTA controls the release of bacterial DNA into cells, where it can act as a PAMP for AIM2 and cGAS. How many other meta-PAMPs are out there?
@jordanjastrab.bsky.social @harvardmed.bsky.social @bostonchildrens.bsky.social @harvardmicro.bsky.social
Rather, WTA controls the release of bacterial DNA into cells, where it can act as a PAMP for AIM2 and cGAS. How many other meta-PAMPs are out there?
@jordanjastrab.bsky.social @harvardmed.bsky.social @bostonchildrens.bsky.social @harvardmicro.bsky.social
Thrilled to share my work from the @jkagan1.bsky.social lab!
TLDR: O-acetylation and wall teichoic acid compete for space on S. aureus peptidoglycan. This competition regulates DNA release, and thus immune receptor activation, during infection!
www.biorxiv.org/content/10.1...
#microsky #immunosky
TLDR: O-acetylation and wall teichoic acid compete for space on S. aureus peptidoglycan. This competition regulates DNA release, and thus immune receptor activation, during infection!
www.biorxiv.org/content/10.1...
#microsky #immunosky
Wall teichoic acid is required for DNA-triggered innate immune receptor activation by Staphylococcus aureus
Receptors that stimulate inflammation are commonly activated by ligands that are buried within microbial cells. The mechanisms that facilitate immunostimulatory ligand release from microbes during inf...
www.biorxiv.org
September 26, 2025 at 11:31 AM
Thrilled to share my work from the @jkagan1.bsky.social lab!
TLDR: O-acetylation and wall teichoic acid compete for space on S. aureus peptidoglycan. This competition regulates DNA release, and thus immune receptor activation, during infection!
www.biorxiv.org/content/10.1...
#microsky #immunosky
TLDR: O-acetylation and wall teichoic acid compete for space on S. aureus peptidoglycan. This competition regulates DNA release, and thus immune receptor activation, during infection!
www.biorxiv.org/content/10.1...
#microsky #immunosky
Reposted by Jordan Jastrab
SAVE THE DATE ‼️ 📆 📢
BBM 2025 will be held on June 9-10th at the Harvard Science Center feat. the one and only Dr. Petra Levin as keynote! We can't wait to see you there.
Registration and scholarship applications open next week.
BBM 2025 will be held on June 9-10th at the Harvard Science Center feat. the one and only Dr. Petra Levin as keynote! We can't wait to see you there.
Registration and scholarship applications open next week.
February 1, 2025 at 3:05 PM
SAVE THE DATE ‼️ 📆 📢
BBM 2025 will be held on June 9-10th at the Harvard Science Center feat. the one and only Dr. Petra Levin as keynote! We can't wait to see you there.
Registration and scholarship applications open next week.
BBM 2025 will be held on June 9-10th at the Harvard Science Center feat. the one and only Dr. Petra Levin as keynote! We can't wait to see you there.
Registration and scholarship applications open next week.
Reposted by Jordan Jastrab
So excited to have our new paper out now!
Pyroptotic EVs “transplant” gasdermin pores from dying cells onto bystander cells, propagating pyroptosis and inflammation. t.co/XgU6jt15aF 1/3
#innate_immunity #immunoSky #celldeath #ExtracellularVesicles @uconnresearch.bsky.social
Pyroptotic EVs “transplant” gasdermin pores from dying cells onto bystander cells, propagating pyroptosis and inflammation. t.co/XgU6jt15aF 1/3
#innate_immunity #immunoSky #celldeath #ExtracellularVesicles @uconnresearch.bsky.social
December 31, 2024 at 4:39 PM
So excited to have our new paper out now!
Pyroptotic EVs “transplant” gasdermin pores from dying cells onto bystander cells, propagating pyroptosis and inflammation. t.co/XgU6jt15aF 1/3
#innate_immunity #immunoSky #celldeath #ExtracellularVesicles @uconnresearch.bsky.social
Pyroptotic EVs “transplant” gasdermin pores from dying cells onto bystander cells, propagating pyroptosis and inflammation. t.co/XgU6jt15aF 1/3
#innate_immunity #immunoSky #celldeath #ExtracellularVesicles @uconnresearch.bsky.social
Reposted by Jordan Jastrab
I just made a first release of TNA - new tool to compare 2 bacterial genomes. Is shamelessly inspired by ACT, but should be simpler to use. Drag-n-drop two genomes: it runs BLAST for you and then you can visualize. For Mac, Windows 11, Linux tna.readthedocs.io
TNA documentation — TNA 0.0.1 documentation
tna.readthedocs.io
November 29, 2024 at 11:38 AM
I just made a first release of TNA - new tool to compare 2 bacterial genomes. Is shamelessly inspired by ACT, but should be simpler to use. Drag-n-drop two genomes: it runs BLAST for you and then you can visualize. For Mac, Windows 11, Linux tna.readthedocs.io
Reposted by Jordan Jastrab
Wow—one of the most impressive bench-to-bedside stories you’re ever going to see out today @Nature
Spatial proteomics of potentially fatal toxic epidermal necrolysis/Stevens-Johnson Syndrome drug reactions identifies JAK/STAT pathway inhibition as effective therapy!
www.nature.com/articles/s41...
Spatial proteomics of potentially fatal toxic epidermal necrolysis/Stevens-Johnson Syndrome drug reactions identifies JAK/STAT pathway inhibition as effective therapy!
www.nature.com/articles/s41...
November 24, 2024 at 2:18 AM
Wow—one of the most impressive bench-to-bedside stories you’re ever going to see out today @Nature
Spatial proteomics of potentially fatal toxic epidermal necrolysis/Stevens-Johnson Syndrome drug reactions identifies JAK/STAT pathway inhibition as effective therapy!
www.nature.com/articles/s41...
Spatial proteomics of potentially fatal toxic epidermal necrolysis/Stevens-Johnson Syndrome drug reactions identifies JAK/STAT pathway inhibition as effective therapy!
www.nature.com/articles/s41...
Reposted by Jordan Jastrab
Publication Alert! Happy to share our new work published in CellReports of a collaboration with the Zychlinsky Lab (Max Planck Institute for Infection Biology). "Histone H1 kills MRSA". cell.com/cell-reports.... Enjoy!
Histone H1 kills MRSA
Marsman et al. detect histone H1 in MRSA in human abscesses and demonstrate that it
kills MRSA under physiological conditions. They identify through selective evolution
and a genome-wide screen that h...
cell.com
November 15, 2024 at 12:28 PM
Publication Alert! Happy to share our new work published in CellReports of a collaboration with the Zychlinsky Lab (Max Planck Institute for Infection Biology). "Histone H1 kills MRSA". cell.com/cell-reports.... Enjoy!
Excited to share our review in @cellchembiol.bsky.social on inflammasome responses to bacteria! @jkagannotonbluesky and I discuss the mechanisms by which immune receptors and guard proteins trigger inflammasomes in response to bacteria - and bacterial strategies to evade these immune responses!
Online now! #Perspective! Strategies of bacterial detection by inflammasomes by @JordanJastrab and @jkagan1 at @BostonChildrens @harvardmed @BrighamWomens
April 18, 2024 at 12:09 AM
Excited to share our review in @cellchembiol.bsky.social on inflammasome responses to bacteria! @jkagannotonbluesky and I discuss the mechanisms by which immune receptors and guard proteins trigger inflammasomes in response to bacteria - and bacterial strategies to evade these immune responses!