St. John lab @DukeNUS studies immune responses to human pathogens and develops novel vaccination strategies. We love mast cells. Tweets by Ashley.
Joined February 2018
- Tweets 880
- Following 356
- Followers 1,519
- Likes 1,085
144 Photos and videos
Pinned Tweet
12 Nov 2024
Did you know that the fetal immune system can protect from congenital infection before birth? -Proud to share our study identifying protective functions of #microglia, contrasting the harmful early influence of #monocytes and primitive macrophages to #zika virus infection.
12 Nov 2024
Now online! Differential contributions of fetal mononuclear phagocytes to Zika virus neuroinvasion versus neuroprotection during congenital infection dlvr.it/TG7FfY
8
18
51
7,577
Ashley St. John Lab retweeted
Day 2 of @SgSI_Immunology Annual Symposium ended on a high note with @EvNewell1 sharing exciting updates on his work since leaving Singapore. Great #science and #friendship are the best combination for our thriving community. Looking forward to meeting again next year!
1
2
16
717
Ashley St. John Lab retweeted
Mar 25
An analysis of skin and blood after #dengue infection in @ScienceAdvances shows a more dramatic reshaping and enrichment of T cells in the skin, indicating that vaccinations bolstering the skin’s immune response could help protect against dengue infection. scim.ag/4drlIcP
20
49
12,066
Ashley St. John Lab retweeted
Mar 25
A new @SciImmunology Review discusses the lessons learned from Zika virus infection research, including maternal-fetal immune crosstalk and potential strategies for therapeutic targeting. scim.ag/3NCWQUC
30
91
16,964
Ashley St. John Lab retweeted
Approximately 10 years after the discovery that #Zika virus infections cause #congenital defects, a new Science #Immunology Review examines how experimental models have shed light on the mechanisms driving disease outcomes. @StJohnLab @dukenus scim.ag/4uD5lzN
1
8
30
2,117
We wanted to put over a decade of advances on the immunology surrounding fetal Zika infection in context in our review "Immune mechanisms of congenital Zika syndrome" @SciImmunology. So happy to see it's #openaccess! written with @Abhay_R_ science.org/doi/10.1126/scii…
1
4
13
506
Ashley St. John Lab retweeted
Jan 28
The @aller_gyimm was officially opened today. The result of a journey which began a long time ago. It really transforms our ability to do research.
So thankful to our whole family @aller_gyimm and @chandi2012 for making this happen.
Exciting times ahead!
12
13
87
6,126
Ashley St. John Lab retweeted
28 Nov 2025
Analysis of data from nearly 1.5 million Danish children suggests that infants hospitalized for #RSV infections have a significantly higher risk of developing asthma when one or both parents are also asthmatic. @bart_lambrecht @BosteelsCedric
scim.ag/3M1Dbg3
6
31
2,808
Ashley St. John Lab retweeted
16 Oct 2025
Thank you @StJohnLab for inviting me for the @HcvFlavi2025
So lovely to meet up with you again. Its been one of the best conferences. Congratulations for putting together such a wonderful meeting.
#dengue #flavi
1
2
46
3,178
Ashley St. John Lab retweeted
10 Oct 2025
Very inspired that Yaghi, a Palestinian refugee who came to the U.S. at 15 received the 2025 chemistry #NobelPrize . A reminder of the power of education to unleash talent, a testament to U.S. capacity to attract/ enable talent, and how much progress a we lose to incessant wars
8 Oct 2025
This year’s chemistry laureate Omar Yaghi was born in Amman, Jordan, in 1965 to parents who were refugees from Palestine. When we spoke to him he shared his story:
“I grew up in a very humble home, we were a dozen of us in one room, sharing it with the cattle that we used to raise. I was born in a family of refugees, and my parents could barely read or write. My father finished sixth grade and my mother couldn’t read or write. It’s quite a journey. Science allows you to do it. Science is the greatest equalising force in the world.
Smart people, talented people, skilled people exist everywhere. That’s why we really should focus on unleashing their potential through providing them with opportunity.”
Today Yaghi shared the 2025 Nobel Prize in Chemistry with Susumu Kitagawa and Richard Robson for their work developing metal–organic frameworks.
Learn more about the prize: nobelprize.org/prizes/chemis…
5
29
217
24,995
2 Oct 2025
Delighted to see Chia-Lin featured by @JExpMed - one of the #womeninSTEM I’ve always admired.
👩🔬 JEM invited NYCU’s Prof. Chia-Lin Hsu to share her journey as a female scientist—founding a lab, chasing dreams, and overcoming challenges.
A voice from Taiwan to empower more women in science. 💡
#WomenInSTEM #WomenInScience #NYCU #JEM #TaiwanScience
2
8
2,480
Ashley St. John Lab retweeted
21 Sep 2025
The Granulocyte Meeting 2025 has officially concluded!
🙏 Huge thanks to all the incredible speakers & chairs, your contributions made this meeting a success.
📍 Looking ahead: see you all at #GMeeting2027 in Korea! #GMeeting2025
1
7
34
3,126
“I was fired for holding the line on scientific integrity. The stakes are not theoretical — we have already seen the largest [US] measles outbreak in more than 30 years, which claimed the lives of two children.”
go.nature.com/3VYHcUa
11
31
119
22,902
19 Sep 2025
Bittersweet ending to the second Granulocyte Meeting! Thank you @lai9uan for bringing us to Shanghai for another chance to unite the granulocytes. Next stop Korea 2027!
1
12
686
Ashley St. John Lab retweeted
11 Sep 2025
Interested in attending the EMBO Lecture Course, entitled "RNA virus infection and host immune responses," hosted in Faridabad, India, on 11 – 14 February 2026?
sign up here:
meetings.embo.org/event/26-r…
1
5
21
1,107
Ashley St. John Lab retweeted
9 Sep 2025
A new analysis of a cohort in Nepal links the waning of vaccine immunity against Japanese encephalitis virus to elevated chymase levels and a higher risk of severe #dengue infection.
Read more in @ScienceTM: scim.ag/4mX8Lcr
9
18
90
35,249
Ashley St. John Lab retweeted
4 Sep 2025
A new analysis of a cohort in Nepal links the waning of vaccine immunity against Japanese encephalitis virus to elevated chymase levels and a higher risk of severe #dengue infection.
Read more in @ScienceTM: scim.ag/4mX8Lcr
7
5
23
15,945
Ashley St. John Lab retweeted
4 Sep 2025
A new analysis of a cohort in Nepal links the waning of vaccine immunity against Japanese encephalitis virus to elevated chymase levels and a higher risk of severe #dengue infection. @StJohnLab @dukenus @smlhtr_ scim.ag/4mY7C4c
1
4
5
1,076
4 Sep 2025
Dengue is rising. In Nepal, studying >500 #dengue patients, we found that waning immunity to Japanese encephalitis virus (#JEV) was associated with worsened dengue severity, which has implications for #vaccine campaign planning. First au🙌: @smlhtr_
science.org/doi/10.1126/scit…
4
17
39
3,802
28 Jul 2025
Thank YOU for inviting me to a fabulous meeting!
24 Jul 2025
A big thank you to Ashley St John @StJohnLab from Duke-NUS Medical School for kicking off our 2025 Vic/Tas Branch Meeting at the beautiful Melbourne Zoo, with an engaging talk on how the fetal immune system controls congenital viral infections! 🐅🐘🌿
7
443
12 May 2025
Excited to share our new #OpenAccess review: "Maternal IgE Influence on Fetal and Infant Health" led by Jozef. We discuss how maternal #IgE shapes fetal immunity and the shift to intrinsic early-life IgE production, with implications for #allergy onset.
👉 doi.org/10.1111/imr.70029
3
3
16
789