Dr. Hannah E. Jones, PhD
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hejcell.bsky.social
Dr. Hannah E. Jones, PhD
@hejcell.bsky.social
PhD Cell Biology, Stem Cells & Development, fibroblasts n' brains n' vasculature, #embryo22, she/her
Reposted by Dr. Hannah E. Jones, PhD
Postnatal Cerebral Perivascular Fibroblast
#SciArt

Fibroblast PDGFRα KO🐭(P0)
👉⏬Perivascular Fibroblast & Perivascular Mφ coverage of penetrating vessels (P10)
👉↔️SMC/Astrocyte coverage

@hejcell.bsky.social
@siegenthalerlab.bsky.social
@devbiol.bsky.social 2025
www.sciencedirect.com/science/arti...
November 21, 2025 at 12:08 PM
& a great time to share a life update! (better late than never) I’ve recently started as a Postdoc in the Wills lab at University of Washington where I’ll be studying the role of fibroblasts during regeneration in Xenopus 🐸🧠 On my way to becoming a frog wrangler @frogwranglers.bsky.social
Congrats to Hannah @hejcell.bsky.social on the last of FOUR 1st author papers from her thesis work & short postdoc in the @siegenthalerlab.bsky.social - excited for all your future discoveries in the Wills Lab! 🐸 🧠
November 20, 2025 at 8:21 PM
Thrilled to share this last little bit of my thesis work w/ @siegenthalerlab.bsky.social! 🐭🧠 Generating the PDGFRa cKO line we use in this paper was no trivial task, spanning multiple years (& a pandemic!) We were extremely excited to see this phenotype & even more excited to share it with everyone!
Our work out in @devbiol.bsky.social, PDGFra is needed for 🧠 perivascular fibroblast development... ⬇️ perivascular fibroblast = ⬇️ perivascular macrophage...cross-talk? 👀
Led by Hannah Jones @hejcell.bsky.social w/ Kelsey Abrams, Sophia Kim, excited for more projects w/ @fantauzzolab.bsky.social!
November 20, 2025 at 8:01 PM
Reposted by Dr. Hannah E. Jones, PhD
Our work out in @devbiol.bsky.social, PDGFra is needed for 🧠 perivascular fibroblast development... ⬇️ perivascular fibroblast = ⬇️ perivascular macrophage...cross-talk? 👀
Led by Hannah Jones @hejcell.bsky.social w/ Kelsey Abrams, Sophia Kim, excited for more projects w/ @fantauzzolab.bsky.social!
November 20, 2025 at 1:23 PM
Reposted by Dr. Hannah E. Jones, PhD
SAVE THE DATE! Stoked to organize the 2026 Santa Cruz Developmental Biology Meeting with @rashmi-priya.bsky.social, @lowelab.bsky.social, and Shelbi Russell. Come learn about Biomedicine, Biomechanics, and the Biosphere, August 24-28, 2026. Registration dates, etc., coming soon! Please RT
November 19, 2025 at 8:23 PM
Reposted by Dr. Hannah E. Jones, PhD
"If we lose hope, we're doomed."

We must continue Dr. Jane Goodall's mission and all fight for the future of the planet.
October 1, 2025 at 7:31 PM
Reposted by Dr. Hannah E. Jones, PhD
PhD Timeline xkcd.com/3081
April 25, 2025 at 3:32 PM
Reposted by Dr. Hannah E. Jones, PhD
@cshlmeetings.bsky.social Brain Barriers 2025 is a wrap! It was an honor to co-organize this meeting in 2023 & 2025, a highlight of my scientific career.
I am amazed by all the great science presented by these awesome scientists over the last five days...the future of CNS barrier biology is 🤩 💫!
April 12, 2025 at 8:01 PM
Reposted by Dr. Hannah E. Jones, PhD
🚨 A new Daneman Lab preprint!! 🚨

Reid Larsen, one of the brightest scientists I know, studied the BBB glycocalyx, identified its structure, composition, and function and uncovered what makes the CNS glycocalyx unique. It was a true pleasure to be a part of this seminal study!
shorturl.at/Wkhxr
Multi-omic analysis reveals the unique glycan landscape of the blood-brain barrier glycocalyx
The blood-brain barrier (BBB) glycocalyx is the dense layer of glycans and glycoconjugates that coats the luminal surface of the central nervous system (CNS) vasculature. Despite being the first point...
www.biorxiv.org
April 12, 2025 at 8:58 PM
Reposted by Dr. Hannah E. Jones, PhD
I was imaging this weekend, took this image because it was beautiful to me, the blood vessels, fibroblasts, astrocytes, & macrophages as steadfast guardians at the brain's edges. Cheers to the 'guardians' of all that is important. ❤️
March 17, 2025 at 2:51 PM
Reposted by Dr. Hannah E. Jones, PhD
March 13, 2025 at 1:16 PM
Reposted by Dr. Hannah E. Jones, PhD
March 8, 2025 at 2:55 AM
Reposted by Dr. Hannah E. Jones, PhD
March 7, 2025 at 11:33 AM
we’re standing up for science tomorrow! Made some signs tonight with Denver @standupforscience.bsky.social organizers ❤️🧬🔬🥼
March 7, 2025 at 4:02 AM
Reposted by Dr. Hannah E. Jones, PhD
"downsizes" is a weak way of saying "forced to cancel dozens of programs, which jeopardizes future STEM careers of talented undergrads" @science.org www.science.org/content/arti...
NSF downsizes summer research program for undergraduates
Many participants are from groups underrepresented in science
www.science.org
March 1, 2025 at 12:13 PM
Reposted by Dr. Hannah E. Jones, PhD
"Memoli had no choice, he insisted: He was following the direction of three HHS officials—Dorothy Fink, then the acting secretary; Heather Flick Melanson, chief of staff; and Hannah Anderson, deputy chief of staff of policy—who told him, in no uncertain terms, that the pause was to continue..."

/1
Inside the Collapse at the NIH
Administration officials pressured the NIH to avoid clear advice from the agency’s own lawyers to restart grant funding now.
www.theatlantic.com
February 27, 2025 at 7:11 PM
Reposted by Dr. Hannah E. Jones, PhD
A small museum says all but one sponsor of a Girls in STEM event backed out, fearing retaliation from the Trump administration over "DEI." Evan Kruegel reports for @nexton9news.bsky.social. www.youtube.com/watch?v=Zg1n...
Sponsors pull out of 'Girls in Science' event at Colorado children’s museum following DEI cuts
YouTube video by Next 9NEWS
www.youtube.com
February 21, 2025 at 3:53 AM
Reposted by Dr. Hannah E. Jones, PhD
Join us! Science Homecoming helps scientists reconnect with communities by writing about the importance of science funding in their hometown newspapers. We’ve mapped every small newspaper in the U.S. and provide resources to get you started. Help science get back home 🧪🔬🧬 🏠

sciencehomecoming.com
Science Homecoming
sciencehomecoming.com
February 18, 2025 at 5:12 PM
Reposted by Dr. Hannah E. Jones, PhD
Maybe I wasn’t clear about this. I wanted more egg and no plane crash, not many plane crash and no egg.
February 17, 2025 at 11:28 PM
Reposted by Dr. Hannah E. Jones, PhD
“It’s really an elaborate infrastructure that’s required to do this research. One of the things that concerns me is the magnitude and rapidity of these changes.”

VC for Research Tom Flaig, MD, recently spoke to @cbsnews.com about the potential impact the proposed NIH cuts could have on our campus.
Colorado's large medical research community deals with attempts to cut federal funding
Colorado's medical research community is looking at how to handle the potential of cuts to research grant money that it receives from the National Institutes of Health.
www.cbsnews.com
February 17, 2025 at 5:38 PM
Reposted by Dr. Hannah E. Jones, PhD
On International Day of Women and Girls in Science, a reminder to not close your eyes and turn away from what is happening in the US right now. Fascism is an assault on scientific integrity, knowledge, and innovation.

www.chron.com/news/space/a...
NASA to wipe mentions of women, Indigenous people from websites
NASA employees told to remove mentions of women, indigenous people, and environmental justice from websites.
www.chron.com
February 11, 2025 at 8:07 AM
Reposted by Dr. Hannah E. Jones, PhD
March for science? AAUP & other unions are working on action plans and messaging around NIH, DEI, and other slashes

Feb 13: National call in 8PM (below)
Feb 19: National day of action on campuses (details soon)
Feb 25: National Action & Press Conference in DC (details soon)

@aaup.bsky.social
February 8, 2025 at 6:31 PM
Reposted by Dr. Hannah E. Jones, PhD
I have not seen a crisis of this magnitude since yesterday
February 8, 2025 at 12:53 AM
Reposted by Dr. Hannah E. Jones, PhD
1. Today the NIH director issued a new directive slashing overhead rates to 15%.

I want to provide some context on what that means and why it matters.

grants.nih.gov/grants/guide...
NOT-OD-25-068: Supplemental Guidance to the 2024 NIH Grants Policy Statement: Indirect Cost Rates
NIH Funding Opportunities and Notices in the NIH Guide for Grants and Contracts: Supplemental Guidance to the 2024 NIH Grants Policy Statement: Indirect Cost Rates NOT-OD-25-068. OD
grants.nih.gov
February 8, 2025 at 12:18 AM
Reposted by Dr. Hannah E. Jones, PhD
The number of people surprised by the long list of words NSF is targeting makes me think many of you all have not seen this: www.commerce.senate.gov/services/fil...
February 4, 2025 at 2:26 AM