Takeshi Uenaka

@tuenaka.bsky.social

🧠 Neurologist 🇯🇵 | Postdoc @WernigLab @Stanford 🧫 iPSC-derived models for studying neurodegeneration 🔬 Former @brainresilience.bsky.social | Current @hdfcures.bsky.social Fellow

Only smiles in the tissue culture room from now on 🙂 Find the TK4 plasmids from the Wernig lab here: www.addgene.org/browse/artic...

Addgene: Prevention of transgene silencing during human pluripotent stem cell differentiation.

addgene.org

Takeshi Uenaka@tuenaka.bsky.social · 5mo ago

Have you ever cried in the tissue culture room because your #iPSC transgene got silenced after differentiation? I have. Many, many times. So we built TK4, a PiggyBac vector designed to resist silencing. Now available on @addgene.bsky.social: #239047 / #239046 Would love to hear your thoughts.

Our paper is (finally) out in Cell today! CRISPR screens in iPSC-derived neurons reveal principles of tau proteostasis www.cell.com/cell/fulltex... Great collaborative effort - read more from first author @asamelson.bsky.social below:

CRISPR screens in iPSC-derived neurons reveal principles of tau proteostasis

CRISPR screens in iPSC-derived neurons reveal that the E3 ubiquitin ligase CRL5SOCS4 ubiquitinates tau, that CUL5 expression is correlated with resilience in human Alzheimer’s disease, and that electr...

cell.com

asamelson@asamelson.bsky.social · 6mo ago

After a long review process, I'm excited that our paper is finally in print: www.cell.com/cell/fulltex... TL;DR: We use CRISPR screens in iPSC-derived neurons to find a new tau E3 ligase and a relationship between oxidative stress, the proteasome, and tau proteolytic fragments. More below 👇

Amazing team science effort, led by Marius Wernig’s group, to develop a silencing-resistant transgene cassette that maintains expression following iPSC differentiation. This was major barrier for iPSC-based experiments. Thanks to CZI for funding the research! www.biorxiv.org/content/10.1...

Prevention of Transgene Silencing During Human Pluripotent Stem Cell Differentiation

While high and stable transgene expression can be achieved in undifferentiated pluripotent stem cells, conventional transgene expression systems are often silenced upon differentiation. Silencing occu...

biorxiv.org

Silencing of transgenes during iPSC differentiation is a frequent problem. 🧬🫢 Check out the piggyBac system below, which has resisted silencing in many protocols across many labs. 💪 Excited that our lab could contribute to this team effort led by @tuenaka.bsky.social & Marius Wernig!

Takeshi Uenaka@tuenaka.bsky.social · last yr.

Losing sleep over #iPSC transgene silencing after differentiation? Same here — too many times😭 So we built a PiggyBac construct that resists silencing. Expression stays ON, even after differentiation. Our #preprint is out👇 🔗 www.biorxiv.org/content/10.1... Supported by @cziscience.bsky.social