Justin Gutkowski

@justingutbio.bsky.social

Postbaccalaureate fellow @ NICHD 🧑‍🔬 Writer for @prelights.bsky.social ✍️ Future PhD student interested in development/stem cells/embryogenesis/gametogenesis 🧬🧫🥚 Marathoner/Ultrarunner 🏃 He/Him/His 🧑‍💼 All views expressed are my own 🏳️‍🌈

This is bizarre! tl;dr Female carp germline stem cells were transplanted into #zebrafish. The cells were able to adapt to the zebrafish host, differentiate into grass carp–derived sperm within just three months & were capable of successful fertilization: producing all-female grass carp offspring! 🧪

Science China Press@sciencechinapress.bsky.social · 3mo ago

Tiny zebrafish, huge impact: Grass carp reproduction accelerated 20-fold Here, researchers report in Science China Life Sciences with a cover story of an ultra-fast surrogate reproduction strategy: www.eurekalert.org/news-release... #LifeSciences #Biology #StemCells #Zebrafish #Aquaculture

Doing the periodic cleaning of used plasmid miniprep columns and realized in honor of Earth Day it may be worth reminding you molecular biologists: Plasmid miniprep columns can be cleaned and reused essentially indefinitely! Just add 1 M HCl, soak overnight and wash 3x w/ water. Save $ and plastic

Bild

I am proud to have contributed to this project during the first part of my postbaccalaureate fellowship, and excited to spend the rest of my time in this lab further investigating this structure.

Dan 🐟 C@zebrafish007.bsky.social · 9mo ago

Exciting new #Zebrafish research from the #WeinsteinLab, led by Jong Park! “Specialized gas-exchange endothelium of the zebrafish gill” — www.biorxiv.org/content/10.6... Amazing to see red blood cells moving through the gills! Don’t forget to check out the supplemental movies ;-)

Excited to announce I recently highlighted another preprint for @prelights.bsky.social. In this preprint, @r-pantier.bsky.social and co-authors from the Chambers Lab at the University of Edinburgh find that the TET proteins act together to help mammalian cells specify into somatic lineages.

TET knockout cells transit between pluripotent states and exhibit precocious germline entry - preLights

Genetic gatekeepers of gametogenesis? TET proteins jointly jam germline specification, synergistically steering cells towards somatic fates.

prelights.biologists.com

Excited to announce that a new protocol to test potential PD-1/PD-L1 inhibitors was recently published by my former lab at URI. I’m happy to have contributed to this method to determine drug candidates’ ability to block this pathway, commonly exploited by cancer cells to hide from the immune system.

Identifying PD-1/PD-L1 Inhibitors with Surface Plasmon Resonance Technology

University of Rhode Island. This protocol describes a blockade assay for PD-1/PD-L1 inhibitors using surface plasmon resonance technology. It employs a dual-step immobilization strategy and a tailore...

dx.doi.org

A new call to revise the limit to culture human embryos, currently not allowed beyond 14 days (start of gastrulation) to 28 days www.nature.com/articles/d41.... There is no new argument here to add to earlier calls but, as often in this argument, certain caveats are glossed over….. . 🧵

Human embryo research: how to move towards a 28-day limit

The decades-old limit on how long human embryos can be grown in culture is under debate. A new road map outlines how to extend the length of culture responsibly.

nature.com

In a follow-up to our recent coverage of the NIH, our latest piece talks about the NSF’s role in funding basic science in the U.S. and how that role is being threatened by restructuring, budget cuts, and cuts to training programs and fellowships like REUs and the GRFP. Read about it here: 🧪 #scicomm

How We Talk About Science@howwetalkabtsci.bsky.social · last yr.

The NIH isn’t the only federal agency that funds U.S. science, and it isn’t the only agency imperiled by political interference, either. Read our latest on the National Science Foundation and what we stand to lose if cuts to funding and training programs continue: open.substack.com/pub/isabella...

Choking under pressure? 🥵 3D confinement in hydrogel-based culture inhibits muscle stem cell activation and differentiation. “…this #preprint demonstrates the interconnectedness of different subfields of biology.” #preLight of @justingutbio.bsky.social ⬇️👀 prelights.biologists.com/highlights/3...

3D mechanical confinement directs muscle stem cell fate and function - preLights

Choking under pressure? 3D confinement in hydrogel-based culture inhibits muscle stem cell activation and differentiation

prelights.biologists.com

Excited to announce I just posted a new preLight showcasing the work of @thegaaa.bsky.social in the lab of @thewooj.bsky.social on the effects of 3D confinement on muscle stem cell proliferation and differentiation using an asymmetric hydrogel bilayer model. Check out the post and their paper below:

3D mechanical confinement directs muscle stem cell fate and function - preLights

Choking under pressure? 3D confinement in hydrogel-based culture inhibits muscle stem cell activation and differentiation

prelights.biologists.com