Makoto T Hayashi
@makotothayashi.bsky.social
92 followers 150 following 11 posts
Group leader at IFOM-KU joint lab is working on #chromosome biology, especially focusing on #telomere functions. Employed by IFOM ETS and running the lab at Kyoto University.
Posts Media Videos Starter Packs
makotothayashi.bsky.social
Thrilled to see our work published! Huge thanks to all my co-authors for the great collaboration!!
makotothayashi.bsky.social
10/10 For a more detailed explanation, check out bsky.app/profile/thec... for an in-depth thread on our findings.
makotothayashi.bsky.social
9/10 These insights not only advance our understanding of telomere biology but also opens potential therapeutic avenues for targeting mitotic death in cancer cells.
makotothayashi.bsky.social
8/10 Our findings support a dynamic model where coordinated post-translational modifications of shelterin promote t-loop unwinding, aiding in the removal of damaged cells from the cell cycle.
makotothayashi.bsky.social
7/10 This phosphorylation is essential for BTR-mediated double Holliday junction dissolution and contributes to mitotic telomere deprotection, highlighting a previously underappreciated role of the shelterin complex.
makotothayashi.bsky.social
6/10 Shelterin is a telomere-binding protein complex that includes TRF1 and TRF2, crucial for maintaining telomere structure and function. During mitotic arrest, Aurora Kinase B (AURKB) of the CPC phosphorylates TRF1 and TRF2, leading to telomere linearity and a telomere-specific DDR.
makotothayashi.bsky.social
5/10 Our study uncovers a sophisticated mechanism involving the Chromosome Passenger Complex (CPC), the shelterin complex, and the BLM-TOP3A-RMI1/2 (BTR) complex in regulating MAD-telomere deprotection.
makotothayashi.bsky.social
4/10 Telomeres safeguard chromosome ends by forming t-loops, preventing ATM activation and unwarranted DNA damage responses (DDR). However, during mitotic arrest, telomere linearity and a localized DDR emerge—a phenomenon known as "Mitotic Arrest Dependent (MAD)-Telomere Deprotection."
makotothayashi.bsky.social
3/10 Additional key contributors include Ronnie Low, Scott Page, Blake Lane, Andrew Robinson, and Lucy French from @thecesarelab.bsky.social. Fuyuki Ishikawa from Kyoto University and Shunya Kosaka from my lab.
makotothayashi.bsky.social
2/10 This work highlights the power of collaboration. Special thanks to our fantastic collaborator @thecesarelab.bsky.social. Diana Romero from my lab and Sam Rogers from Cesare’s lab contributed equally to this work. Their perseverance truly deserves immense recognition!