Natalia Sampaio
drnatsampaio.bsky.social
Natalia Sampaio
@drnatsampaio.bsky.social
Researcher - innate immunity, RNA sensors, viruses, inflammation, autoimmunity. Hudson Institute, Monash Uni, Melbourne.

Mum, T1D, tomato-grower, she/her

https://www.hudson.org.au/researcher-profile/natalia-sampaio/
Although we set out to discover novel regulators of MDA5, we actually stumbled on a regulator of BOTH RIG-I and MDA5! ANXA2 loss affects responses to viruses activating either or both receptors, and even activation with known RIG-I agonist 3p-hpRNA.
November 17, 2025 at 6:21 AM
#WNV infection can cause #encephalopathy, and loss of ANXA2 saw poor response to virus in #iPSC #neural progenitors.

#macrophages are key sources of inflammation in response to many viruses, e.g. #flu IAV in the lungs, but iPSC-derived macrophages responded weakly in the absence of ANXA2.
November 17, 2025 at 6:21 AM
Critically, when ANXA2 is absent, cells fail to induce strong innate immune responses to virus infections such as #westnilevirus #EMCV and #influenzaA. Amazingly, cells hardly "realize" they are infected with West Nile Virus if ANXA2 is absent!
November 17, 2025 at 6:21 AM
To identify novel regulators of the #MDA5 pathway, we used SILAC-MS in #virus infected vs uninfected cells. We identified ~100 MDA5 binding partners, one of which was Annexin A2 (ANXA2).
November 17, 2025 at 6:21 AM
Whoever did this at @ciiid-hudson.bsky.social I am SO MAD!!!! @jamiahemphill.bsky.social I’m looking at you!!!! #trickortreat #halloween #fooled #sosad 😩😢🤬
October 31, 2025 at 4:50 AM
Thanks @hudsonresearch.bsky.social for the invite to @theasmr.bsky.social gala dinner. Inspiring talks and many great chats with Melbourne colleagues. A good excuse to get dressed up on a Thursday night. If only I didn’t have pesky lab work in the morning 🫠 👩🏻‍🔬🧫@drnicolecampbell.bsky.social
October 23, 2025 at 11:41 AM
Last day of #ARNASydney2025 and this cartoon from @xkcd.com is just particularly appropriate, so I had to re-share! #RNAsky
September 3, 2025 at 3:27 AM
Someone told me today that my top looks “endoplasmi reticulum chic”! #ERchic #endoplasmicreticulum #ER #handknit #knitsky 🔬🧶
August 21, 2025 at 10:15 AM
Also, butterflies! 🦋
July 24, 2025 at 8:18 AM
Best conference venue ever! LOVED attending (and presenting) at) Aus&NZ Society for #Immunology Vic/Tas branch meeting - at the #Melbourne Zoo! Science!! Lemurs!!!! It’s been great.
🤓🧪
July 24, 2025 at 7:21 AM
Love how toys have all kinds of inclusivity these days. Wonder when I’ll see one with an #insulinpump? #T1D #diabetes #cochlear
July 5, 2025 at 9:08 AM
We just got our son this for his sixth birthday. What should we look at first? Any hot tips for beginners? 😅😅😅
June 21, 2025 at 10:36 AM
I love my research assistant. Sending me great data at 8:30 am on a Monday morning 🤩, and being really excited about it #OMGdata 🧪
March 30, 2025 at 9:33 PM
Awkwardly sitting next to a poster of my face at the RNA Victoria symposium @hudsonresearch.bsky.social #RNAte #RNA #accidentalmodel 🧪💃
March 27, 2025 at 5:01 AM
Same! Thanksfully there are solutions to this “problem”
March 11, 2025 at 10:38 AM
Enjoyed lab end-of-year lunch in the beautiful Dandenong Ranges hosted by the man himself @paulh1pjh.bsky.social. Looking forward to more #interferon #innateimmuniry #science with these awesome people in 2025! @hudsonresearch.bsky.social
December 19, 2024 at 8:46 AM
Arrived in Sydney for the Australian Inflammation Centres Symposium today, getting my #coldbrew coffee fix in before sessions start. Excited to present my work on #innateimmunity #viruses #RNA sensing. Thanks for the invite organisers! #inflammation #immunosky #coffeewanker
November 23, 2024 at 10:08 PM