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Robert Phillips

@rphillips3.bsky.social
311 followers 250 following 50 posts

Neuroscientist interested in cross-species conservation of cell types and circuits | Postdoc in Martinowich lab at Lieber Institute for Brain Development | PhD with Day Lab at UAB

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Reposted by Robert Phillips
Ben Saunders @bensaunders.bsky.social · 06/10/2026
Very excited to share our new preprint. We identify the basolateral amygdala dopamine system as an important interface between dynamic shifts in the environment and decisions to engage in vigorous drug use. Really challenging studies led brilliantly by Dr. Megan Brickner.
biorxiv.org
The basolateral amygdala dopamine system shapes dynamic drug seeking states
Drug-associated sensory cues and contexts exert powerful influence over drug seeking motivation, but in vivo brain mechanisms governing this process remain unclear. Here, we recorded and manipulated d...
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Reposted by Robert Phillips
Mark Histed @markhisted.org · 05/10/2026
Oh I shd add: Deisseroth’s work was (say it w me!) supported with public funding through federal science agencies incl NIH, NSF, and DARPA. And I daresay few political deciders in 2004 would have been excited to put algal proteins in HEK cells or neurons. Scientists knew, though.
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Keri Martinowich @martinowk.bsky.social · 28/09/2026
What is becoming increasingly clear to us across these projects is that, subcortically, in the human 🧠, variation across 3D anatomical axes is the rule rather than the exception.
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Robert Phillips @rphillips3.bsky.social · 27/09/2026
Welcome @jianingyao.bsky.social to Bluesky! She generated this awesome video of the 3D reconstruction.
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Robert Phillips @rphillips3.bsky.social · 27/09/2026
All of our code is available here: github.com/LieberInstit.... This repo also contains links to our web-based interactive apps to explore the data.
github.com
GitHub - LieberInstitute/xenium_NAC: xenium_NAC
xenium_NAC. Contribute to LieberInstitute/xenium_NAC development by creating an account on GitHub.
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Robert Phillips @rphillips3.bsky.social · 27/09/2026
Thanks to @lieberinstitute.bsky.social and NIDA for funding this work. Of course, we extend a special thanks to the families of the brain donors who make this work possible.
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Robert Phillips @rphillips3.bsky.social · 27/09/2026
Thanks @kr-maynard.bsky.social, @stephaniehicks.bsky.social ,and @martinowk.bsky.social for overseeing this work. Sampling across the A-P axis is critical for future case-control studies where we can target sections containing cell types with signatures suggesting susceptibility to disease.
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Robert Phillips @rphillips3.bsky.social · 27/09/2026
There is quite a bit of info left out of this thread. Check out the paper to explore our cross-species analyses, genetic risk for brain disease across cell types, as well as changes in local microenvironment across the A-P.
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Robert Phillips @rphillips3.bsky.social · 27/09/2026
D1_Island_B exhibits high expression of DRD3, VIP, PROK2, and NPY1R. The high expression of DRD3 and general lack of mature MSN markers lead us to believe these cells actually represent Islands of Calleja. This was confirmed by cross-species analysis where D1_Island_B clusters with ICj.
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Robert Phillips @rphillips3.bsky.social · 27/09/2026
The unique expression profile, topography, and distribution of D1-islands lead us to use VisiumHD to gain a better understanding of their transcriptional heterogeneity. We found that D1_Island_A consists of two distinct populations of D1-MSNs that exhibit high expression of OPRM1, TSHZ1, and RXFP1.
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Robert Phillips @rphillips3.bsky.social · 27/09/2026
Our sampling strategy allowed us to investigate whether cell type topography changes across the AP-axis. Spatial organization of all cell types remains remarkably consistent. D1 islands do show differential enrichment across the AP-axis, with a switch from A->B as you move anterior->posterior.
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Robert Phillips @rphillips3.bsky.social · 27/09/2026
We identified the canonical cell types and unexpectedly found two transcriptionally and topographically distinct populations of D1-islands, D1_Island_A and D1_Island_B. D1_Island_A is marked by high expression of OPRM1 and RXFP1, while D1_Island_B is marked by high expression of DRD3 and VIP.
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Robert Phillips @rphillips3.bsky.social · 27/09/2026
Using Xenium spatial transcriptomics, we profiled 22 individual sections across two donors with each section separated by ~500um. This was a massive effort by @svitlanabach.bsky.social and team. I cannot stress enough how difficult interpretation of human neuroanatomy is.
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Robert Phillips @rphillips3.bsky.social · 27/09/2026
Very excited to share our newest preprint, led by myself and Biostats PhD Student Jianing Yao, where we generate a three dimensional reconstruction of the human NAc to understand how cell type heterogeneity and topography change across the anterior-posterior axis. www.biorxiv.org/content/10.6...
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Robert Phillips @rphillips3.bsky.social · 25/09/2026
Creepy when the targeted ads know exactly what you were thinking...
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Robert Phillips @rphillips3.bsky.social · 18/09/2026
You dropped this 👑
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Reposted by Robert Phillips
Jorge Miranda Barrientos @jorge-miranda.bsky.social · 15/09/2026
Thrilled to share that I was selected for a Mexican government program aimed at strengthening collaborations between research institutions in Mexico and Mexican scientists abroad, receiving the distinction of Investigator Level 1! 🇲🇽🔬 What a great way to start Hispanic Heritage Month!
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Bernie Mulvey @berniejmulvey.bsky.social · 11/09/2026
Excited to share work with cryostat wizard @heenadivecha.bsky.social looking at gene expression in my favorite brain region (LC) in adult postmortem brain! (Long URL to spare the trouble of identifying cars, buses, beds in 5x5 pixel imgs). (1/x) link.springer.com/epdf/10.1007...
link.springer.com
Molecular programs in human locus coeruleus link APOE and neuromelanin to Alzheimer’s vulnerability
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Michael Totty @mictott.bsky.social · 27/08/2026
Incredibly proud to share our newest work where we developed a multiscale spatial transcriptomic atlas of the human amygdala using three complementary technologies! 1/12 🧵 www.biorxiv.org/content/10.6...
biorxiv.org
Multiscale spatial transcriptomics resolves the cellular and molecular architecture of the human amygdala
The amygdala is a central hub for emotional learning that is dysregulated across numerous psychiatric disorders, yet its molecular architecture in humans remains poorly defined. We here present a spat...
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Reposted by Robert Phillips
Jorge Miranda Barrientos @jorge-miranda.bsky.social · 14/08/2026
Coming back from another amazing GRC frontal cortex. So proud of Suhaas Adiraju who presented some of the work we are doing at @lieberinstitute.bsky.social about Amphetamine ensembles within the mPFC.
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Reposted by Robert Phillips
Keri Martinowich @martinowk.bsky.social · 14/08/2026
Sorry, I know I've posted enough #FluorescenceFriday images 🔬, but this is so frigging cool - 3D reconstruction from Xenium data of cell types across the nucleus accumbens in human 🧠. Credit to JHU Biostats PhD student Jianing Yao and @rphillips3.bsky.social who are leading this project 🤩
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Keri Martinowich @martinowk.bsky.social · 14/08/2026
For #FluorescenceFriday - fresh off the 🔬 image as part of a molecular connectomics experiment that I am super stoked about from Maddie Abramson, @rphillips3.bsky.social @jorge-miranda.bsky.social and Stephanie Page - labeling hippocampal neurons projecting to the lateral septum in the mouse 🧠
Fluorescence microscopy image of virally labeled CA1 neurons in the mouse hippocampus that are projecting to the lateral septum
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Reposted by Robert Phillips
Keri Martinowich @martinowk.bsky.social · 12/08/2026
Big congratulations to @aaronsalisbury.bsky.social on conferral of his PhD and a great thesis defense seminar yesterday. Congrats Aaron and best of luck for your next steps - we are excited to watch all your success!
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Robert Phillips @rphillips3.bsky.social · 07/08/2026
Beautiful image, but interesting choice of colors here. DA=red?
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Keri Martinowich @martinowk.bsky.social · 31/07/2026
Excited for accepted #ACNP2027 panel co-chaired with @jojolab.bsky.social. @vikaassohal.bsky.social @suthanalab.bsky.social @rphillips3.bsky.social and Josh will present cross-species strategies that align rodent circuit interrogation w/ behavioral, physiological & molecular readouts in human 🧠
Screen shot of email acceptance from ACNP organizers with panel title
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Robert Phillips @rphillips3.bsky.social · 31/07/2026
My dude! So stoked to see this project continue
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Reposted by Robert Phillips
Olivia Drake @odrake.bsky.social · 30/07/2026
Our new preprint from @daylab.bsky.social characterizes Chst9-MSNs, a specialized NAc population with high Oprm1 expression and opioid sensitivity that is required for fentanyl reward learning. Excited to share this work! 🧠🧬 www.biorxiv.org/content/10.6...
biorxiv.org
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Robert Phillips @rphillips3.bsky.social · 24/07/2026
For #FluorescentFriday, some more D1-island RNAscope from @ishbeldelrosario.bsky.social. These cells are so weird in all the best ways. Excited to share this data with everyone soon 😎🏝️
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Reposted by Robert Phillips
Jeremy Day @daylab.bsky.social · 20/07/2026
Notice of Award Monday! Grateful to NIDA for supporting some very exciting work defining the cellular and circuit mechanisms that opioids target to produce rewarding effects.
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Keri Martinowich @martinowk.bsky.social · 17/07/2026
Fresh off the🔬for #FluorescenceFriday from @ishbeldelrosario.bsky.social - pretty RNAscope as part of our continued exploration of spatially-organized populations of D1R-expressing island populations in nucleus accumbens of human 🧠. Excited to be bringing some key updates to the data resources soon!
Microscopy image of fluorescently labeled cell markers in the human nucleus accumbens
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Reposted by Robert Phillips
Prashanthi Ravichandran @prashanthi-ravi.bsky.social · 02/07/2026
(9/10) Thank you to @lieberinstitute.bsky.social, NIDA, and all our collaborators who made this work possible. 🧑‍🔬 #NAcLIBD @svitlanabach.bsky.social, @rphillips3.bsky.social, @alexisbattle.bsky.social , @martinowk.bsky.social , @stephaniehicks.bsky.social, and @kr-maynard.bsky.social
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Reposted by Robert Phillips
Keri Martinowich @martinowk.bsky.social · 02/07/2026
I am so proud of the whole team, and excited for next steps. We are already building on these discoveries by examining spatial organization of D1 islands across the full anatomical extent of the NAc and integrating molecular maps with functional mouse circuit and behavior studies. So excited!!
Some AMAZING high resolution spatial transcriptomics data in human brain to better understand localization, composition and origin of the D1 islands - more to come!
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Kristen Maynard @kr-maynard.bsky.social · 02/07/2026
Excited to share our new study characterizing spatial gene expression in the human NAc led by @prashanthi-ravi.bsky.social @svitlanabach.bsky.social @rphillips3.bsky.social in collaboration with @martinowk.bsky.social @stephaniehicks.bsky.social @alexisbattle.bsky.social @lcolladotor.bsky.social.
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Keri Martinowich @martinowk.bsky.social · 01/07/2026
New paper out online today!! We identify two previously unrecognized transcripts at the BDNF locus, BDNF-DT and BDNF-AS-DT, that are developmentally regulated, coordinated with BDNF expression, and associated with schizophrenia risk. www.nature.com/articles/s41...
nature.com
BDNF-DT and BDNF-AS-DT: novel genes in the BDNF locus - Molecular Psychiatry
Molecular Psychiatry - BDNF-DT and BDNF-AS-DT: novel genes in the BDNF locus
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Jorge Miranda Barrientos @jorge-miranda.bsky.social · 26/06/2026
Thrilled to share that our latest paper investigating how mPFC-LC projectors contribute to sustained #attention is now out in @npp-journal.bsky.social This is so meaningful to me and the team, Its @rehg-j.bsky.social first first-author paper and my first corresponding one. rdcu.be/fqBJp
rdcu.be
Top-down control of sustained attention by medial prefrontal cortex—locus coeruleus (mPFC-LC) projection neurons during the rodent continuous performance test (rCPT)
Neuropsychopharmacology - Top-down control of sustained attention by medial prefrontal cortex—locus coeruleus (mPFC-LC) projection neurons during the rodent continuous performance test (rCPT)
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Reposted by Robert Phillips
UAB Comprehensive Neuroscience Center @uabneuro.bsky.social · 17/06/2026
A new $10 million philanthropic investment will establish the Frances Gorrie Alzheimer’s Disease Center at UAB, supporting clinical care and research into this neurodegenerative condition affecting over 7 million Americans. Read more here. www.uab.edu/medicine/new...
uab.edu
Building momentum in memory disorder care and research | Heersink School of Medicine News
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Ben Saunders @bensaunders.bsky.social · 16/06/2026
Check out our new paper, led brilliantly by Dr. Megan Brickner, in early view form at @natcomms.nature.com. We characterize BLA dopamine signaling in emotional learning - lots of insights into broad dopamine heterogeneity beyond classic value learning signals! www.nature.com/articles/s41...
nature.com
Basolateral amygdala dopamine transmits emotional salience - Nature Communications
The basolateral amygdala dopamine system has received little attention. Here, authors show that BLA dopamine plays a unique role in learning, by encoding the emotional salience of sensory cues to supp...
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Dionnet L Bhatti Mazo @victoryofflight.bsky.social · 01/06/2026
My PhD work on how lateral septum cells and circuits process threat cues to guide defensive actions is now online at @nature.com rdcu.be/fjNgT w/ @gordfishell.bsky.social and others
nature.com
Feature-specific threat coding in lateral septum guides defensive action - Nature
The populations of CRHR2-expressing neurons in the lateral septum of mice involved in threat-related behaviour in response to environmental challenges are defined.
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Keri Martinowich @martinowk.bsky.social · 02/06/2026
Grateful for some absolutely spectacular weather ☀️ for our annual cross-research teams spring party!!
A group of people sitting on a dock
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Andrew Hardaway @andrewhardaway.bsky.social · 01/06/2026
Glucose-Dependent Insulinotropic Polypeptide Receptors Are Expressed in the Lateral Septum and Reduce Electrically-Evoked Dopamine Release as well as the Ability of Cocaine to Increase Extracellular Dopamine | ACS Chemical Neuroscience pubs.acs.org/doi/10.1021/...
pubs.acs.org
Glucose-Dependent Insulinotropic Polypeptide Receptors Are Expressed in the Lateral Septum and Reduce Electrically-Evoked Dopamine Release as well as the Ability of Cocaine to Increase Extracellular Dopamine
Tirzepatide, a dual agonist of the glucagon-like peptide 1 receptor (GLP-1R) and glucose-dependent insulinotropic polypeptide receptor (GIPR), represents a new class of medication for obesity and type II diabetes treatment. Using laboratory mice, we show that GIPRs are present in the lateral septum (LS) in cells also expressing GLP-1R, particularly in the dorsolateral LS. Likewise, we show the coexpression of the dopamine (DA) D2 receptor (DRD2) in LS cells with GLP-1R in both the dorsolateral and intermediate portions of the LS. Using fast-scan cyclic voltammetry, we demonstrate that systemic GLP-1R or GIPR agonist treatment reduces both electrically evoked DA release in the LS and the ability of cocaine to increase extracellular DA levels. These data unveil a new central role for GIPR signaling and identify a potentially important cell type expressing both GLP-1R and GIPR upon which tirzepatide or other dual agonists may modulate DA homeostasis in the brain.
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Jennifer O’Chan @chanjenerational.bsky.social · 21/05/2026
Thrilled to share my main postdoctoral work out @nature.com ! This project tackles a fundamental question: how do pregnancy and postpartum experiences promote lifelong changes to the brain? www.nature.com/articles/s41...
nature.com
Dopamine drives persistent remodelling of the maternal brain - Nature
Brain-wide transcriptomic profiling in mice reveals that reproductive experience remodels the maternal brain by altering dopamine dynamics in the dorsal hippocampal formation, causing dopamine-depende...
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Robert Phillips @rphillips3.bsky.social · 21/05/2026
Congrats @chanjenerational.bsky.social ! So great to see this work out.
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Bryan Roth @zenbrainest.bsky.social · 21/05/2026
DREADDs in humans--update: 3 clinical trials using hM4Di in humans registered in China. 2 for epilepsy and 1 for Parkinson's Disease. In our original paper we stated: "...We suggest that at least one of these designer receptors, hM4D, will prove useful for neuronal silencing in vitro and in vivo.."
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Keri Martinowich @martinowk.bsky.social · 15/05/2026
For #FluorescenceFriday, celebrating some more good paper news with this really pretty image labeling prefrontal cortical neurons with projections to the locus coeruleus with chemogenetic receptors. Image credit to @rehg-j.bsky.social @jorge-miranda.bsky.social 🧠🧪🔬
Fluorescent microscopy image of a section of mouse brain tissue with viral labeling with green and red fluorophores. Overlap makes neurons appear yellowish-orange on image.
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Robert Phillips @rphillips3.bsky.social · 12/05/2026
👑 you dropped this
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Jeremy Day @daylab.bsky.social · 24/04/2026
This work is now available online in @elife.bsky.social - thanks to the reviewers for excellent comments! Check it out if you are interested in the intersection of pain, opioids, and the ventral tegmental area! elifesciences.org/reviewed-pre...
elifesciences.org
Morphine regulates astrocyte transcriptional dynamics in the ventral tegmental area by stimulation of glucocorticoid signaling
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Keri Martinowich @martinowk.bsky.social · 24/04/2026
For #FluorescenceFriday and in celebration of a paper acceptance - super excited to get this one out to the community soon 🤩, cluster of "D1 islands" in the nucleus accumbens of the human 🧠 (🟢 MBP; 🔴 DRD1; 🟡 RXFP1; 🟣 OPRM1). Image credit to @svitlanabach.bsky.social @ishbeldelrosario.bsky.social 🔬👩‍🔬
Fluorescence microscopy image of single molecule in situ hybridization in a section of human brain tissue at the level of the nucleus accumbens
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Jorge Miranda Barrientos @jorge-miranda.bsky.social · 24/04/2026
Yesterday I had the privilege to give a virtual talk to undergrad and graduate students in Mexico about some of our work at @lieberinstitute.bsky.social. It was great to connect with the community, and giving it in spanish felt so special. #cienciaenespañol!
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Robert Phillips @rphillips3.bsky.social · 22/04/2026
Me today watching @nataliagonzalezp.bsky.social leave lab for the last time. Natalia is an outstanding scientist and is going to do great things at @mpfneuro.bsky.social!
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Needhi Bhalla 💅🏽 @needhibhalla.bsky.social · 15/04/2026
As a recipient of federal grants from #NIH (for now! 😭) that funds research in my lab, I'd like to sincerely thank American taxpayers on #TaxDay for investing in scientific research that lays the foundation for medical and technological innovation in this country and keeps us ALL safe and healthy
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