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Prof. Akiko Iwasaki Profile picture
@VirusesImmunity
Sep 11, 2020 • 5 tweets • 5 min read • Read on X
I cannot believe this is happening - we are celebrating our 20th anniversary of the Iwasaki Lab (and my 50th birthday) tomorrow 🎉

With presentations from my former and current trainees from all around the 🌎 I am suuuuper excited 😁 (1/) Image
The speaker list is just amazing 🤩 including @EllenFoxman @JennyLund15 @YosukeKumamoto @ImmunoFever Xinyan Zhao @weizmano @HShin_Lab @ericsongg Norifumi Iijima (2/)
All of this is hard to believe. The fact that my lab survived for 20 years, I was blessed with incredible trainees, such diverse people and science that supported the lab, and the next generation of scientists it fostered. Grateful does not begin to describe how I feel. (3/)
Well, but we are just getting started 😎 I feel honored and energized to continue doing science with amazing people. I want to continue to mentor more young scientists and create a better world in academia, where women and URM are truly empowered to unleash their potential. (4/)
Reunion made possible by the amazing organizing committee - @MelissaLV14 Kris Sepanek @maria_tokuyama @YYexin @jofrank1088 Will Khoury-Hanold @Myoungjoo Pat Wong @JeffGehlhausen @peowenlu @aliceluculligan @tianyangmao @annsea_park @taka_takehiro @marioph13 @carolinacas 🙏🏼 (end)

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More from @VirusesImmunity

Prof. Akiko Iwasaki Profile picture
May 16
Published today! Victoria Bastos, @KerrieGreene_ et al found two distinct immunotypes of ME/CFS based on the cerebrospinal fluid analysis. Great collaboration with @MBVanElzakker @microbeminded2 and the Bragée clinic in Sweden. (1/)
academic.oup.com/jimmunol/artic…
This is perfect timing as Victoria will present these data at the @polybioRF symposium today. (2/)

polybio.org/spring-2025-sy…Image
Based on cerebrospinal fluid cytokines, we identified two clusters of ME/CFS patients. Cluster 1 had elevated matrix metalloproteinases & many cytokines compared to cluster 2. Other than older age (Cluster 1), clinical presentation of these clusters was similar. (3/) Image
Read 5 tweets
Prof. Akiko Iwasaki Profile picture
May 13
Published today📣
Our nasal booster in the "Prime & Spike" vaccine works without adjuvants (which are needed to induce adaptive immunity but also cause inflammation). @Kwon_Dongil @tianyangmao @BenIsraelow et al. asked how this is possible. (1/)
nature.com/articles/s4159…
Prime & Spike is a vaccine strategy that leverages preexisting immunity primed by conventional vaccines to elicit mucosal IgA and T cell responses that prevent COVID infection and transmission in rodents. The nasal booster is simply the spike protein (2/) science.org/doi/10.1126/sc…
Our new study shows that the nasal spike protein booster converts lymph node memory B cells into IgA-secreting cells in the lung with the help of memory CD4 T cells. Ag-specific CD4 T cells replace all the necessary functions of adjuvants without nonspecific inflammation! (3/)
Read 5 tweets
Prof. Akiko Iwasaki Profile picture
May 10
This prospective observational study led by @connorbgrady @bornali_27 @SilvaJ_C @hmkyale examined the impact of the primary COVID-19 vaccination on the symptoms and immune signatures of 16 people with #longCOVID. Here is what we found 👇🏼 (1/)

nature.com/articles/s4385…
This study asked: Does COVID vaccination improve symptoms of long COVID? If so, is the improvement due to robust T and B cell responses leading to the clearance of the viral reservoir? If not, is there an immune feature that predicts worsening of LC? (2/)
The self-reported impact of vaccination was variable. Of the 16 long COVID patients, 10 felt better, 3 had no change, and 3 had worse health (1 hospitalized) 12 weeks after vaccination. Both physical and social effects of symptom burden appeared to decrease after vaccination. (3/)Image
Read 6 tweets
Prof. Akiko Iwasaki Profile picture
Feb 20
Our preprint on post-vaccination syndrome is out. We studied immune signatures and examined spike protein in the blood of people who have developed chronic illnesses after COVID-19 vaccination. (1/) medrxiv.org/content/10.110…
Vaccines have saved countless lives and inspired me to become an immunologist. While generally safe, some people experience adverse effects, including Post-Vaccination Syndrome (PVS). Studying PVS is crucial for improving patient care and enhancing vaccine safety & acceptance. (2/) pubmed.ncbi.nlm.nih.gov/37986769/
To explain the study and results, @MalloryLocklear wrote this excellent summary. (3/)
news.yale.edu/2025/02/19/imm…
Read 6 tweets
Prof. Akiko Iwasaki Profile picture
Nov 8, 2024
Happy to share our latest work by @YYexin et al. on antibody-mediated control of endogenous retroviruses in mice. In the process, we found “natural antibodies” with broad reactivity against enveloped viruses. Here is how “panviral” antibodies work 🧵(1/)

science.org/doi/10.1126/sc…
Endogenous retroviruses (ERV) are remnants of genetic invaders that have integrated into our ancestors' genomes over millions of years. ERVs occupy ~8% of the human genome and are under constant host immune surveillance. (2/)
nature.com/articles/nrg31…
nature.com/articles/nrmic…
This work started over 7 years ago when @YYexin and @rebecca_treger began to examine why ERVs reactivate in certain mouse strains. Through many genetic crosses, we figured out that secreted IgM recruits complement to suppress infectious ERV from emerging. (3/) Image
Read 16 tweets
Prof. Akiko Iwasaki Profile picture
Oct 13, 2024
This time, we developed a nasal booster vaccine for influenza viruses. In this preprint, @MiyuMoriyama et al. show that nasal boosters with unadjuvanted hemagglutinin protein induce sterilizing immunity in mice against flu. (1/)
biorxiv.org/content/10.110…
This work builds on the Prime and Spike vaccine strategy by @tianyangmao @BenIsraelow et al. against COVID where mRNA vaccine followed by nasal booster with recombinant spike protein established local immunity, ⬇️ infection & transmission in rodents. (2/)
science.org/doi/10.1126/sc…
For Prime and HA against flu, @MiyuMoriyama tested several different mRNA IM prime and nasal HA booster doses, followed by a homologous influenza virus challenge. Like Prime and Spike, no adjuvant is needed for the nasal booster due to preexisting immunity from Prime. (3/) Image
Read 11 tweets

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