Lennard Ostendorf

@lostendorf.bsky.social

MD/PhD – Postdoc Brigham/Harvard Med Immunology. Kidneys. Autoimmune Disorders. Basketball. Jazz. 50% of the @immunoboys.bsky.social

Join us at Charité University and the IMPRS-IDI Graduate Program in Berlin to unravel NK cell clonality and memory! We are looking for motivated PhD candidates who are passionate about immunology. @romagnanilab.bsky.social @timorckert.bsky.social Apply now 👉 www.imprs-idi.org/home/

IMPRS-IDI – International Max Planck Research School for Infectious Diseases and Immunology

imprs-idi.org

Max Planck Institute for Infection Biology@mpiib-berlin.mpg.de · 9mo ago

Looking for a #PhD project in #+immunology? The @romagnanilab.bsky.social offers two fully funded projects “Dissecting the Molecular Pathways of NK Cell Clonality” & “Dissecting the Molecular Pathways of NK Cell Memory“. Apply by Dec 10 👉 www.mpiib-berlin.mpg.de/1947490/rese...

So happy to announce our new preprint, “A geothermal amoeba sets a new upper temperature limit for eukaryotes.” We cultured a novel amoeba from Lassen Volcanic NP (CA, USA) that divides at 63°C (145°F) 🔥 - a new record for euk growth! #protistsonsky 🧵

bioRxiv Microbiology@biorxiv-microbiol.bsky.social · 8mo ago

A geothermal amoeba sets a new upper temperature limit for eukaryotes https://www.biorxiv.org/content/10.1101/2025.11.24.690213v1

Just 4 days until the start of I2K and its 33 totally free image analysis tutorials and events! Please share with your "home networks", especially early career researchers - the videos will be amazing and high-impact no matter how many people attend live, BUT (1/x)

A fluorescent embryo on black text, with the words 
Halfway to I2K: Virtual Tutorials on Image Analysis
November 17-19, 2025
Virtual Conference for beginners to developers
i2kconference.org
Image Credit - "Sweet Embryo",Travis D. Carney, BINA Image Contest 2024

🧠🌟🐭 Excited to share some of my postdoc work on the evolution of dexterity! We compared deer mice evolved in forest vs prairie habitats. We found that forest mice have: (1) more corticospinal neurons (CSNs) (2) better hand dexterity (3) more dexterous climbing, which is linked to CSN number🧵

bioRxiv Neuroscience@biorxiv-neursci.bsky.social · 10mo ago

Evolutionary expansion of the corticospinal system is linked to dexterity in Peromyscus mice https://www.biorxiv.org/content/10.1101/2025.10.16.682851v1

Ubiquitinylation is more complex than just a signal for proteasomal degradation: Linear ubiquitinylation of Methionine-1 is important for NFkB signalling. LOF of the Deubiquitinylase OTULIN leads to an autoinflammatory disease with a TNF positive feedback loop. 🧪 ⑂ 1/2

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CRISPR screening factors influencing Th1 vs Th2 differentiation, RAMP3 which forms part of a CGRP receptor is a positive regulator of Th1 differention. CGRP acts by increasing intracellular cAMP and ultimately ATF3 activity it induces STAT1 and thereby Th1 differentiation. in 🐭 🧪 ⑂ 1/2

Figure 3 from the paper showing the experimental setup and top hits of Th1 regulators

Friday Papers Club! 🍿In light of Pubmed going down, the collapse of social media, and my recent success at getting recommendations for interesting papers from those still around, I am starting a new tradition! - Recommend a good scientific manuscript! 👇

A conference of three primates, discussing videography and their varying perspectives on nature documentaries. Jane Goodall and husband Hugo van Lawick, 1974. Third primate's name unknown.

Jane Goodall and husband Hugo van Lawick share a moment with a monkey in this January 1974 photo.  It is crawling up a tripod to inspect the lens of the camera while the two humans look on.

Horisberger et al separate Lupus nephritis patients in 3 groups by blood: healthy-like, interferon-dominant and CD8 T cell-dominant. The CD8 T cell-dominant group had the highest biopsy activity score and highest response rate after 1 year; the healthy-like the most chronic damage. 🧪 ⑂ #NephSky 1/

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