Georgios Petrellis, DVM, M.Sc.
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gpetrellis.bsky.social
Georgios Petrellis, DVM, M.Sc.
@gpetrellis.bsky.social
Phd student - University of Liège 🇧🇪
A(l).Macrophages
B.Helminths
Gamma.herpesviruses
(my abc are from 🇬🇷)
Reposted by Georgios Petrellis, DVM, M.Sc.
Brief 🧵 on current job opportunities at the Center for Cancer #Immunotherapy & Immunobiology at Kyoto University.
#Immunology #Immunosky
May 23, 2025 at 11:01 AM
Reposted by Georgios Petrellis, DVM, M.Sc.
We are #hiring! Please help share!

Postdoc in #Immunology; B-cell biology

We are recruiting a postdoc to lead projects on human B cells and plasma cells funded by the Gates Foundation and the NIH (The position is fully funded and not dependent on future grants).

ghosnlab.science/join-us
Ghosn Laboratory — join us!
ghosnlab.science
May 22, 2025 at 4:51 PM
Reposted by Georgios Petrellis, DVM, M.Sc.
Methicillin-resistant S. aureus (#MRSA) causes difficult-to-treat infections in humans. #ICYMI: Data suggest that CD209d/e are essential receptors to control inflammation by activating macrophages leading to MRSA uptake and killing. Learn more: ow.ly/ba8250VU8c7.
CD209d/e are required for macrophage-mediated phagocytosis and activation during methicillin-resistant Staphylococcus aureus pulmonary host defense
Abstract. Staphylococcus aureus is a commensal and opportunist pathogen of the upper respiratory tract. The recognition of pathogen-associated molecular pa
ow.ly
May 21, 2025 at 11:54 AM
Reposted by Georgios Petrellis, DVM, M.Sc.
📢 Only one week to go!

We are very thrilled about our upcoming first CiViA #symposium 'Defense against #viral infections 🦠 ', which will take place on 21 & 22 May 2025 at Hotel Vejlefjord, #Denmark 🇩🇰.

Stay tuned for further updates!

Supported by @dg.dk & @carlsbergfondet.dk
May 14, 2025 at 4:26 PM
Reposted by Georgios Petrellis, DVM, M.Sc.
🩸🐍 Hyper-immune antivenom from 200+ snake bites

A new antivenom made with antibodies from Tim Friede – a man bitten by snakes 200 times – protects mice from 19 deadly species.

🔗 doi.org/10.1038/d415...

#SciComm #Snakes #Immunology 🧪
Blood of man who’s had 200 snake bites helps make a potent antivenom
Treatment combines existing drug with antibodies from hyper-immune reptile collector, raising both hopes and ethical concerns.
doi.org
May 4, 2025 at 2:47 PM
Reposted by Georgios Petrellis, DVM, M.Sc.
Really sad I can't make it this year, as its at the same time as IFPA (placenta conference) - but would recommend for any macrophage fans #macrophage #bestcell #sorryi'llmissit
🚨 REGISTRATION NOW OPEN!!!

Head to www.emds2025.com to register and submit your abstracts. Full programme is now available.

NB: Spaces are limited, so don't delay, register today!

@britsocimm.bsky.social @efis-immunology.bsky.social
@societymucosalimm.bsky.social @natrevimmunol.nature.com
May 7, 2025 at 8:58 AM
Reposted by Georgios Petrellis, DVM, M.Sc.
Almost 600 cases of measles in Ontario.

Welcome back to the dark ages, where dead kids is just the cost of doing business.
March 27, 2025 at 5:19 PM
Reposted by Georgios Petrellis, DVM, M.Sc.
There is a Postdoc job available in my lab to study fundamental mechanisms of antiviral immunity, specifically in the context of viral nucleic acid sensing. Please take a look here and contact me if interested:
#immunosky #virology 🧪
www.jobs.cam.ac.uk/job/50254/
Research Assistant / Research Associate (Fixed Term) - Job Opportunities - University of Cambridge
Research Assistant / Research Associate (Fixed Term) in the Department of Pathology at the University of Cambridge.
www.jobs.cam.ac.uk
February 11, 2025 at 12:23 PM
Reposted by Georgios Petrellis, DVM, M.Sc.
First post on Bluesky, let’s share some websites offering many free illustrations for scientific figures 🖼️ 🧪 🌍 :

scidraw.io

bioart.niaid.nih.gov

www.phylopic.org

More well known but very nice though: www.freepik.com
SciDraw | Scientific Drawings
SciDraw - an open repository of science drawings
scidraw.io
November 23, 2024 at 6:57 AM
Reposted by Georgios Petrellis, DVM, M.Sc.
#immunosky Check out this fantastic postdoc position available in Seth’s group working on gdT cells in breast cancer metastasis at University of Glasgow and please share with potential applicants👇🏻
February 7, 2025 at 3:58 PM
Reposted by Georgios Petrellis, DVM, M.Sc.
Super happy to share our new study now published in #Science #Immunology - www.science.org/doi/10.1126/.... Congrats to first author Bin Yang✨. #IL-4 expand Virtual Memory T cells (TVM) which 'borrow' the normally B-cell restricted CD22 for regulating their activation during #helminth infection.
IL-4 induces CD22 expression to restrain the effector program of virtual memory T cells
CD22 regulates IL-4–induced expansion and responsiveness of virtual memory T cells during helminth infection.
www.science.org
February 7, 2025 at 10:00 PM
Reposted by Georgios Petrellis, DVM, M.Sc.
Our February issue is now live! This week: CD22 restrains #IL4 -driven #TVMcell expansion during #helminth infection; molecular determinants of #TCR x-reactivity against #influenza variants; & #MultipleMyeloma breakout lesions are tumor–immune interaction hotspots!

science.org/toc/sciimmunol/10/104
February 7, 2025 at 7:31 PM
Reposted by Georgios Petrellis, DVM, M.Sc.
Reposted by Georgios Petrellis, DVM, M.Sc.
Reposted by Georgios Petrellis, DVM, M.Sc.
Interesting episode on the connection between immunology and stress. For the lay person 🫡✌🏻
#immunology #stress #mentalhealth
open.spotify.com/episode/5Jrw...
The science behind how sickness shapes your mood | Keely Muscatell
TED Health · Episode
open.spotify.com
January 24, 2025 at 8:54 AM
Reposted by Georgios Petrellis, DVM, M.Sc.
Excess intestinal protein RELMβ linked to food allergies in children through effects on the microbiome. Blocking RELMβ could prevent allergies by restoring gut microbiome balance. Potential for targeted therapies and time for more human studies.
www.nature.com/articles/s41...
RELMβ sets the threshold for microbiome-dependent oral tolerance - Nature
RELMβ mediates a gut immune–epithelial circuit regulating tolerance to food antigens, offering targetable candidates for the prevention and treatment of food allergies.
www.nature.com
January 24, 2025 at 10:02 AM
Reposted by Georgios Petrellis, DVM, M.Sc.
Not that we need it per se, but a little bit more evidence that IL-6 can drive pathological inflammation in lungs...
(here in mouse model of post allo-HSCT)
@jidjournal.bsky.social
#immunosky #medsky
Interleukin-6 is significantly increased in severe pneumonia after allo-HSCT and might induce lung injury via IL-6/sIL-6R/JAK1/STAT3 pathway
Interleukin-6 elevated in severe pneumonia after allo-HSCT and plays a role in lung injury via the IL-6/sIL-6R/JAK1/STAT3 pathway.
academic.oup.com
January 23, 2025 at 11:25 PM
Reposted by Georgios Petrellis, DVM, M.Sc.
📢 Abstract submissions for the #EARA2025 Conference, 'Shaping the future of animal research communication,' are now open!

✍️ Find out more about how to submit your abstract: eara.eu/post/eara-co...

#AnimalResearch #EARA #SciComm
December 16, 2024 at 10:19 AM
Reposted by Georgios Petrellis, DVM, M.Sc.
🫀 The heart has its own nervous system to control the heartbeat, according to a study in zebrafish at
@karolinskainst.bsky.social @columbiauniversity.bsky.social, which may provide new insights into treating #CardiovascularDiseases.
#AnimalResearch
www.eara.eu/post/heart-h...
Heart has its own ‘brain’ – zebrafish study
The heart has its own nervous system to control the heartbeat, according to a study in zebrafish, which may provide new insights into treating cardiovascular diseases.Researchers at the Karolinska Ins...
www.eara.eu
December 18, 2024 at 9:41 AM
Reposted by Georgios Petrellis, DVM, M.Sc.
🐁 Researchers at EARA member @jacksonlab.bsky.social have identified a strain of lab mouse that is naturally susceptible to severe #Covid19.

🦠 The CAST/EiJ mouse holds the potential to improve study & treatment of future variants. #AnimalResearch
www.eara.eu/post/first-m...
First mouse strain that can naturally get severe Covid-19
US researchers are hopeful that research on Covid-19 can be greatly improved, using an existing strain of lab mouse that is highly susceptible to the disease.Laboratory mice used in Covid-19 studies m...
www.eara.eu
January 2, 2025 at 2:21 PM
Reposted by Georgios Petrellis, DVM, M.Sc.
🇩🇪 The 2023 #AnimalResearch statistics in Germany show both a significant short & long-term decline in numbers.

📉 Tierversuche verstehen noted in its report that the rate of decline partly reflects the increasingly difficult conditions for research in Germany.
www.eara.eu/post/german-...
German researchers raise concerns on latest animal use statistics
Newly published statistics on the use of animals in research for 2023 in Germany show both a significant short and long-term decline in animal numbers.The total number of animals used was 1,456,562, a drop of 16% from 2022 (1,725,855), and in comparison to pre-Covid (2019) figures the total number has fallen by more than a quarter (27%).In its press release TVV, the German animal research advocacy organisation, noted that the efforts to reduce animal testing are clearly bearing fruit, but the ra
www.eara.eu
January 3, 2025 at 9:33 AM
Reposted by Georgios Petrellis, DVM, M.Sc.
📹 For the last #EARA news round-up of 2024, check out December's highlights in #AnimalResearch!
youtu.be/2cAc5Q_tl7s
EARA news round-up: December 2024
YouTube video by The European Animal Research Association (EARA)
youtu.be
January 7, 2025 at 12:47 PM
Reposted by Georgios Petrellis, DVM, M.Sc.
🎉 We are pleased to announce that the Karolinska Institute
@karolinskainst.bsky.social has joined #EARA!

The KI is one of the world’s foremost medical universities & marks our second member institution in Sweden.

Check out our full list of members: eara.eu/our-members
January 9, 2025 at 10:14 AM