Joined July 2021
8 Photos and videos
Arndt will be speaking at 18th International Zebrafish Conference. Please check out my talk if you're attending the event! #IZFC2024 - via #Whova event app
2
4
562
Congratulations @Zeenat_JL for successfully defending her PhD @CAMBUpenn! Well deserved!!
1
2
43
2,972
Happy to share our latest results on arteriovenous malformations! Congratulations to PhD student Zeenat Diwan @Zeenat_JL for her great work! Alk1/Endoglin dependent increases in vein endothelial cell sizes precipitate arteriovenous malformations biorxiv.org/content/10.1101/…
1
6
55
4,870
Enjoying a great meeting in Barcelona! #evbo
25
1,880
Very happy to share that Arndt just got tenure at UPenn! Thanks a lot to all previous and current members of the lab for their great work and enthusiasm to make this happen. Enjoying hot pot with the lab to celebrate!
21
5
81
6,397
Siekmann Lab retweeted
This #FluorescenceFriday we highlight the forming vasculature in a zebrafish fin. Research from @ElvinLeonard3, Sana Hasan & @SiekmannLab reveals the existence of distinct morphogenetic processes that generate the mature fin vasculature. 📖@Dev_journal: journals.biologists.com/dev/…
1
8
40
10,658
Happy to announce that our latest paper on fin blood vessel development is online now: journals.biologists.com/dev/… Congratulations to @ElvinLeonard3 and Sana S. Hasan for the amazing work!

5
11
66
5,814
Siekmann Lab retweeted
13 Dec 2022
Join us THIS THURSDAY Dec 15th at 1PM EST for InFocus Session: Vascular Malformations. Trainee speakers were chosen from Abstracts submitted to #IVBM2022. These sessions are NOT recorded so don't miss out!! Register now- These sessions are free to ALL! conta.cc/3uQUNzf
4
11
Siekmann lab reunion @ivbm2022. Having fun with @Zeenat_JL, @ElvinLeonard3, Martin Lange and Sana Hasan.
1
42
Happy to share our results on zebrafish tail fin blood vessel expansion by @ElvinLeonard3 and Sana Hasan! Fascinating to compare to work by @ScottPaulissen from the Weinstein lab, @Rudra_nayan from the @Yaniv_lab and Rosalind Bump from @jraslab! Similar, but different! So cool!
3
2
16
Wow! After a long covid slumber, third paper out within 2 weeks! Congratulations to the first author Martin Lange and our collaborators from the @RuiBenedito_ lab! Zebrafish mutants in vegfab can affect endothelial cell proliferation ... sciencedirect.com/science/ar…

5
11
66
Looks pretty awesome! Congratulations on the nice achievement.
Acute manipulation and real-time visualization of membrane trafficking and exocytosis in #Drosophila. We brought #RUSH, conceived by Franck Perez @Team_FranckP in cultured cells, to the fly, illuminating secretion dynamics in live animals @biorxiv_cellbio doi.org/10.1101/2022.03.25.4…
1
4
Siekmann Lab retweeted
New findings often come unexpectedly! A large extracellular protein produced by non vascular cells cooperates with blood flow to stabilize new vessel connections! Delighted to share and discuss this with you. Great collaboration with Stefan Schulte-Merker!
Svep1 connects anastomosis and blood flow A Research Highlight showcasing new work from Baptiste Coxam @BCoxam, Holger Gerhardt @holger_gerhardt and colleagues journals.biologists.com/dev/…
4
50
269
Happy to share out latest paper on vascular mural cells in developing and regenerating zebrafish fin arteries out in @Dev_journal. Congratulations to the first author @ElvinLeonard3 for the great work. journals.biologists.com/dev/…
3
16
80
Excited to share our latest research on shear stress regulated endothelial enhancers in @SciReports. Great collaboration with the Schnittler laboratory, @vaquerizas_lab and @AranyLab! rdcu.be/cJtta
13
50
Great to see #zebrafish taking the center stage! Awesome collaboration! Thanks! @BugajLab
31 Jan 2022
and a huge thanks to @SiekmannLab for getting us started with these beautiful creatures.
3
Siekmann Lab retweeted
Here it is! PPIL4, a new gene associated with Intracranial Aneurysms in humans, a new Wnt-mechanism of brain arteries formation, a step forward to understand this disease! So proud of everyone that worked on this project! nature.com/articles/s41591-0…
6
25
91