Judi Simcox @judisimcox.bsky.social · 08/10/2026Please spread the word on hiring in our department. We are searching broadly but particularly interested in Systems and Synthetic Biology. I am chairing this faculty search, please feel free to reach out if you have any questions. 040
Judi Simcox @judisimcox.bsky.social · 12/08/2026Link to the commentary written by Andrew in my lab: www.cell.com/developmenta...cell.comA TREK that activates thermogenic adipose tissue by sensing cold air in the lungInhaling cold air triggers adipose tissue thermogenesis. In this issue of Developmental Cell, Jiang et al. utilized the cold exposure to lung only (CELO) system to demonstrate that cold air activates ... 040
Judi Simcox @judisimcox.bsky.social · 12/08/2026Canonical cold sensing begins at the skin with TRP channels. A new paper suggests it can also begin in the lung, through TREK-1; an entirely different organ and channel family. My student Andrew Tu wrote a nice piece in Developmental Cell describing the impact. www.cell.com/developmenta...cell.comPulmonary cold sensing through Club cells triggers adipose thermogenesis to ameliorate obesityWhile cold exposure is known to stimulate thermogenesis, the contribution of the lung to this process remains unclear. This study identifies a pulmonary pathway that enhances Irisin production and adi... 1101
Reposted by Judi SimcoxAmy Weeks @amyweeks.bsky.social · 12/06/2026Now online @pnas.org: We developed a simple, scalable, and accessible platform for deep profiling of phosphoeraser specificity using human phosphoproteome-derived peptide libraries (PhosPropels!) 🧪👩🔬https://www.pnas.org/doi/10.1073/pnas.2523183123pnas.orgPhosphoproteome-derived peptide libraries for deep specificity profiling of phosphatases and phospholyases | PNASProtein phosphorylation is dynamically regulated by the opposing activities of phosphowriter enzymes (kinases) and phosphoeraser enzymes (phosphata... 13112
Reposted by Judi Simcoxedenchang.bsky.social @edenchang.bsky.social · 16/06/2026Excited to share our new bioRxiv preprint! We introduce RIPPLE, a synthetic platform that couples reaction–diffusion signaling with protein condensation to generate tunable intracellular architectures. Grateful to @zjmaggiexu.bsky.social and @cellraiser.bsky.social. It’s been a rewarding journey. 1149
Reposted by Judi SimcoxScott Coyle @cellraiser.bsky.social · 24/06/2026 @zjmaggiexu.bsky.social's story on suctorian trap structure adaptation is now online in @currentbiology.bsky.social , with new evolutionary analyses and modeling! This fall, Maggie will keep exploring predatory protists as a PD in @nbellono.bsky.social group; keep an eye out for her she's amazing!sciencedirect.com 13520
Reposted by Judi SimcoxUW–Madison Department of Biochemistry @uwbiochem.bsky.social · 11/06/2026Join us for Isabella James's Ph.D. thesis defense on June 19. Her research in the @judisimcox.bsky.social Lab focused on ceramides, a class of lipids, investigating their synthesis and how they move among tissues. Learn more: ipib.wisc.edu/2026/05/29/i...ipib.wisc.eduIPiB Thesis Defense June 19, 2026: Isabella JamesJames’s research in the Simcox Lab explored the role certain lipids play in energy expenditure. 021
Reposted by Judi SimcoxUW–Madison Department of Biochemistry @uwbiochem.bsky.social · 13/04/2026Join us for Jess Davidson's Ph.D. thesis defense on April 16! Davidson's research in the @judisimcox.bsky.social Lab explored how lipids are regulated under conditions of metabolic stress, such as cold exposure and disease. Learn more: ipib.wisc.edu/2026/03/30/i... 053
Reposted by Judi SimcoxLamming Lab @lamminglab.bsky.social · 13/03/2026Please enjoy the latest publication from our lab "Restriction of Individual Branched-Chain Amino Acids has Distinct Effects on the Development and Progression of Alzheimer's Disease in 3xTg Mice" advanced.onlinelibrary.wiley.com/doi/10.1002/...advanced.onlinelibrary.wiley.comRestriction of Individual Branched‐Chain Amino Acids has Distinct Effects on the Development and Progression of Alzheimer's Disease in 3xTg MiceProtein restriction (PR) slows Alzheimer's disease (AD) in mice, and other benefits of PR are due to decreased branched-chain amino acids (BCAAs). We show that restricting any BCAA has benefits, with... 151
Reposted by Judi SimcoxNatalie Niemi @nieminm.bsky.social · 08/01/2026Really thrilled to have our work on mitochondrial presequence strength out today @jcb.org. We establish quantitative parameters to better define "strong" and "weak" presequences both in vitro and in vivo. This work was spearheaded by the ever talented Youmian Yan, a BBSB graduate student in my lab. 13515
Reposted by Judi SimcoxJason Cantor @jasonrcantor.bsky.social · 16/01/2026For ~century, we’ve asked: why do proliferating cells ferment glucose even when O2 is around? I’m thrilled to share our latest work @natmetabolism.nature.com, led by @thebiokimist.bsky.social. By leveraging conditional essentiality in HPLM, we propose a provocative new answer to this classic Q. 🧵 35727
Reposted by Judi SimcoxAmy Weeks @amyweeks.bsky.social · 21/12/2025New preprint! We found that the flavin-dependent halogenase RebH catalyzes sequence-tolerant Trp bromination in peptides 🧪https://www.biorxiv.org/content/10.64898/2025.12.17.694899v1 23414
Reposted by Judi SimcoxScott Coyle @cellraiser.bsky.social · 18/11/2025How do cells adapt morphology to function? In a 🔥 preprint by @zjmaggiexu.bsky.social , with @dudinlab.bsky.social and @amyweeks.bsky.social , we identify a self-organizing single-cell morphology circuit that optimizes the feeding trap structure of the suctorian P. collini. 🧵 tinyurl.com/4k8nv926 414459
Reposted by Judi SimcoxNature Cell Biology @natcellbio.nature.com · 16/11/2025☕ @mikelangelipid.bsky.social @olzmannlab.bsky.social & co identify a #LipidDroplet quality control pathway in which FSP1 safeguards stored neutral lipids from lipid peroxidation, thereby preventing the induction of #ferroptosis. @berkeleymcb.bsky.social bit.ly/49mTeyFbit.lyFSP1-mediated lipid droplet quality control prevents neutral lipid peroxidation and ferroptosis - Nature Cell BiologyLange et al. identify a lipid droplet quality control pathway in which FSP1 safeguards stored neutral lipids from lipid peroxidation, thereby preventing the induction of ferroptosis. 0279
Reposted by Judi SimcoxDaniel Drucker @danieljdrucker.bsky.social · 28/10/2025Here the authors propose that inhibition of the serine threonine kinase FAM20C in adipocytes may serve as a potential therapy for #T2D by restoring adipocyte health www.jci.org/articles/vie... 052
Reposted by Judi SimcoxDaniel Drucker @danieljdrucker.bsky.social · 22/10/2025Here the authors further support the link between #leptin signaling and tissue #fibrosis demonstrating that a leptin-neutralizing antibody may be a promising therapeutic approach for reducing fibrosis in the kidney, liver, lung, heart, and blood vessels www.science.org/doi/10.1126/...science.orgLeptin as a key driver for organ fibrogenesisNeutralizing leptin reduces inflammation and fibrosis in mice, suggesting a potential treatment for fibrotic diseases. 0103
Reposted by Judi SimcoxThe Lancet Diabetes & Endocrinology @thelancetendo.bsky.social · 23/10/2025Familial hypercholesterolaemia is still inadequately diagnosed and undertreated, with many affected people remaining at high risk of early cardiovascular disease www.thelancet.com/journals/lan... #familial #hypercholesterolaemia #ASCVD #MedSky #EndoSky #CardioSky 032
Reposted by Judi SimcoxLuis Cedeño-Rosario, PhD @luisci22.bsky.social · 09/10/2025Are you attending SACNAS NDiSTEM 2025!? Don't miss this awesome session about "How to Identify the Right Mentor for You" hosted by @greisha-ortiz.bsky.social @neuro-explorer-lc.bsky.social @luisci22.bsky.social and @joele-r.bsky.social. #NDiSTEM2025 #SACNAS #STEMResearch #PLI @sacnas.bsky.social 🧪🔬🥼 01810
Reposted by Judi SimcoxThe Lancet Diabetes & Endocrinology @thelancetendo.bsky.social · 28/09/2025Published in @lancetgh.bsky.social Classifying a distinct form of #diabetes in lean individuals with a history of undernutrition: an international consensus statement www.thelancet.com/journals/lan... #OpenAccess #MedSky #EndoSkythelancet.comClassifying a distinct form of diabetes in lean individuals with a history of undernutrition: an international consensus statementSince 1955, a form of diabetes in lean, young (BMI <18·5 kg/m2, age <30 years) individuals with a history suggestive of undernutrition from before birth and throughout childhood has been described in ... 022
Reposted by Judi SimcoxDaniel Drucker @danieljdrucker.bsky.social · 25/09/2025Use of GLP-1 medicines in patients with HFrEF and implanted cardiac devices. Caution please www.jacc.org/doi/10.1016/...jacc.orgEffects of Glucagon-Like Peptide 1 Receptor Agonist Initiation in Patients With Heart Failure With Reduced Ejection Fraction and Implantable Cardiac Devices: 051
Reposted by Judi SimcoxAmy Weeks @amyweeks.bsky.social · 13/08/2025New preprint: we developed a method that uses phosphoproteome-derived peptide libraries (PhosPropels) for deep specificity profiling of phosphatases and phospholyases www.biorxiv.org/content/10.1... 14919
Reposted by Judi SimcoxJeff Martell @jeffmartell.bsky.social · 14/08/2025Excited to share our new preprint, which was years in the making! chemrxiv.org/engage/chemr... New reactions are typically developed by trial and error. How can we speed up this process? Read on to learn how we used DNA scaffolding to perform >500,000 parallel reactions on attomole scale. 1/nchemrxiv.orgDNA-Scaffolded Ultrahigh-Throughput Reaction ScreeningDiscovering and optimizing reactions is central to synthetic chemistry. However, chemical reactions are traditionally screened using relatively low-throughput methods, prohibiting exploration of diver... 14119
Reposted by Judi SimcoxMaria Mihaylova @mihaylova.bsky.social · 23/09/2025Excited to share new work led by outstanding former grad student Kübra Akkaya! We show that Stearoyl-CoA Desaturases (SCDs) regulate intestinal stem and progenitor cell proliferation by balancing fatty acids, sustaining epithelial homeostasis and regeneration. 153
Reposted by Judi SimcoxMaria Mihaylova @mihaylova.bsky.social · 23/09/2025Special thanks to all co-authors and collaborators at OSU and Wisconsin, including @judisimcox.bsky.social , for their valuable contributions. www.biorxiv.org/content/10.1... 031
Reposted by Judi SimcoxMark Huising @huisinglab.bsky.social · 16/09/2025Very proud to see the main thesis work of the intrepid Dr. Mohammad Pourhosseinzadeh come out in @pnas.org today! In this paper, Mohammad assesses how crosstalk between insulin-secreting beta and somatostatin-secreting delta cells in the islet actually happens, in near real-time. A quick thread 1/10 4246
Reposted by Judi SimcoxRebecca Mosher @rm0sher.bsky.social · 15/09/2025Three Associate Professor (or Professor) positions available at Oxford Biology. Come be my colleague! www.biology.ox.ac.uk/article/we-a...biology.ox.ac.ukWe are hiring! Oxford biology has three associate professorships available as we move to new state-of-the-art facilities 48876
Reposted by Judi SimcoxLamming Lab @lamminglab.bsky.social · 12/09/2025We have a thesis defense to celebrate today, but first - we need to celebrate the publication of former student Dr. Michaela Trautman's opus, "Dietary isoleucine content modulates the metabolic and molecular response to a Western diet in mice" now in Mol Metab! www.sciencedirect.com/science/arti... 242
Reposted by Judi SimcoxMuir Lab @muirlab.bsky.social · 09/09/2025Super excited to share our new preprint from @cssheehan.bsky.social on how the tumor microenvironment causes drug resistance in pancreatic cancer: www.biorxiv.org/content/10.1...biorxiv.orgTumor nutrient stress gives rise to a drug tolerant cell state in pancreatic cancerCytotoxic chemotherapy remains the standard-of-care treatment for patients with pancreatic ductal adenocarcinoma (PDAC). However, chemotherapy only has modest effects at improving patient survival due... 1329
Reposted by Judi SimcoxAlex Guseman @alexguseman.bsky.social · 21/08/2025How the fuck am I supposed to plan my lab finances if my grants keep getting terminated and reinstated and terminated again? End rant. 3343
Reposted by Judi SimcoxNiladri Sinha @2primehydroxyl.bsky.social · 21/08/2025I am delighted to share that I have started my lab in the Dept. of Biochemistry @uofubiochem.bsky.social at the University of Utah @utah.edu. My laboratory will study key aspects of protein synthesis and translational control in healthy and diseased states. #RNAsky sinha.biochem.utah.edusinha.biochem.utah.eduThe Sinha LabThe Sinha lab studies key aspects of protein synthesis and translational control in healthy and diseased states. We study the multifaceted roles of ribosomes as critical sensors of cellular stress. 149717
Judi Simcox @judisimcox.bsky.social · 21/08/2025It was nice to see our lab’s retreat volunteer project be featured in the arboretum newsletter. We should all work to be stewards of the land we inhabit. arboretum.wisc.edu/news/arboret...arboretum.wisc.eduPeople Caring for the Land: Volunteers, Communities, and Connection | UW ArboretumSpring brought abundant blossoms, greening of the prairie, songs of migratory birds, and many volunteer groups active on the land. In just thirteen weeks, nine different organizations carried out serv... 050
Reposted by Judi SimcoxJeremy Baskin @jeremybaskin.bsky.social · 05/08/2025We are proud to be a founding contributor to lipidinteractome.org, a repository developed by @tafesselab.bsky.social & Schultz lab to increase accessibility to proteomics data from multi-functionalized lipid analogs! Check out the website & preprint: arxiv.org/abs/2507.23101 #lipidtimelipidinteractome.orgThe Lipid Interactome Repository – Lipid Interactome Repository 16319
Judi Simcox @judisimcox.bsky.social · 01/08/2025Congratulations to @uwbiochem.bsky.social Alumni Brian Carrick for receipt of the Shurl and Kay Curci Fellowship from the LSRF!! Well deserved! 150
Judi Simcox @judisimcox.bsky.social · 21/07/2025Great opportunity, the metabolism community in Utah is amazing. I miss my former colleagues daily! Killer research, collaborations, and investment in technology. 071
Reposted by Judi SimcoxAmy Weeks @amyweeks.bsky.social · 18/07/2025Excited to share our latest: we engineered the reactivity of a bacterial E1-like enzyme for ATP-driven modification of C termini. Our tool mimics the logic of peptide bond formation in biology for precision modification of proteins in vitro. 🧪https://rdcu.be/ewN7Crdcu.beEngineered reactivity of a bacterial E1-like enzyme enables ATP-driven modification of protein and peptide C terminiNature Chemistry - In living systems, ATP provides an energetic driving force for protein synthesis and modification. Now, an engineered enzymatic tool has been developed for high-yield, ATP-driven... 49741
Reposted by Judi SimcoxDequina Nicholas @quinascience.bsky.social · 13/07/2025Receiving an @endocrinesociety.bsky.social Early Career Investigator Award has been a highlight of my year. Thank you to the #Nicholaslab and all of my supporters, especially my gradschool and postdoc PIs. #ENDO2025 is my scientific home and I look forward to sharing our progress each year 97512
Reposted by Judi SimcoxUW–Madison Department of Biochemistry @uwbiochem.bsky.social · 01/07/2025Congratulations to Professor Alan Attie on being recognized as the Henry & Annrita Lardy Professor of Biochemistry, a @warfnews.bsky.social Named Professorship. Attie has devoted his career to advancing our knowledge of metabolism. Read more: biochem.wisc.edu/2025/06/26/a...biochem.wisc.eduAttie Honored with WARF Named ProfessorshipAttie, a dedicated mentor and educator, has devoted his career to advancing our knowledge of diabetes and metabolism. 2103
Judi Simcox @judisimcox.bsky.social · 13/07/2025#ENDO2025 has been the renewal of hope I needed. I feel the joy in seeing mentors including @intmedabel.bsky.social and Barbara Kahn, meeting up with friends, and seeing the transformation of the metabolic disease space. Onward to new discoveries. Thanks to #NIDDK for organizing our session. 0142
Judi Simcox @judisimcox.bsky.social · 10/07/2025Officially tenured. Thank you to all the mentors who guided me, and to the trainees who made this possible with your ideas, hard work, and scientific joy. 2112413
Judi Simcox @judisimcox.bsky.social · 09/07/2025Because acylcarnitines are known to regulate insulin sensitivity and energy expenditure, it will be exciting to explore these pathways with our various SCD models. It was an honor to co-correspond with James Ntambi, a leader in lipid signaling and metabolism. pubmed.ncbi.nlm.nih.gov/40350036/pubmed.ncbi.nlm.nih.govStearoyl-CoA desaturase 1 deficiency drives saturated lipid accumulation and increases liver and plasma acylcarnitines - PubMedStearoyl-CoA desaturase-1 (SCD1) is a critical regulator of lipogenesis that catalyzes the synthesis of MUFAs, mainly oleate (18:1n-9) and palmitoleate (16:1n-7) from saturated fatty acids, stearoyl-C... 001
Judi Simcox @judisimcox.bsky.social · 09/07/2025Great work by Mugagga, Lainy and Jess from the Simcox Lab! SCD1 is known to regulate the production of monounsaturated fatty acids and development of diabetes in response of high carbohydrate diet. We showed loss of SCD1 also controls acylcarnitine levels. 3103
Reposted by Judi SimcoxUW–Madison Department of Biochemistry @uwbiochem.bsky.social · 08/07/2025Research from the James Ntambi and @judisimcox.bsky.social Labs reveals an enzyme’s important role in maintaining a healthy balance of lipids in our bodies. More on their latest research: biochem.wisc.edu/2025/07/02/r...biochem.wisc.eduResearch in Brief: The What, Why, and HowResearch from the Ntambi and Simcox Labs reveals an enzyme’s important role in maintaining a healthy balance of lipids in our bodies. 094
Reposted by Judi SimcoxUW–Madison Department of Biochemistry @uwbiochem.bsky.social · 30/06/2025Congratulations to Integrated Program in Biochemistry graduate student Gina Wade and Biochem postdoc Jericha Mill, who we recognize for their excellence in teaching and mentorship! Wade and Mill work in the @judisimcox.bsky.social Lab. Read more: biochem.wisc.edu/2025/06/30/s...biochem.wisc.eduSimcox Lab Grad Student and Postdoc Recognized for Exceptional Mentorship and TeachingGraduate student Gina Wade received the Denton Award and postdoctoral researcher Jericha Mill received the Leirmo Memorial Award. 073
Judi Simcox @judisimcox.bsky.social · 30/06/2025Congratulations Gina and Jericha for the well deserved recognition of their teaching and mentorship! 0132
Reposted by Judi SimcoxUW–Madison Department of Biochemistry @uwbiochem.bsky.social · 24/06/2025Research from the @judisimcox.bsky.social Lab uncovers new details about the relationship between metabolic disease, cells' energy expenditure, and how cells regulate the breakdown of a lipid. Learn more: biochem.wisc.edu/2025/06/17/r...biochem.wisc.eduResearch In Brief: The What, Why, and HowResearchers in the Simcox Lab identified an enzyme that helps to break down lipids that control energy expenditure. 084
Reposted by Judi SimcoxEddie Rashan @edreesrashan.bsky.social · 23/06/2025AND IT'S DONE! A 🧵 on our recent article now out in @natsmb.nature.com! Co-led with @abbybartlett.bsky.social, Pagliarini Lab, @judisimcox.bsky.social, we find ACAD10/11 are NOT like other acyl-CoA dehydrogenases and instead catabolize atypical lipids called 4-hydroxy acids 🤯 doi.org/10.1038/s415...doi.orgACAD10 and ACAD11 enable mammalian 4-hydroxy acid lipid catabolism - Nature Structural & Molecular BiologyRashan, Bartlett and colleagues show that mammalian 4-hydroxy fatty acids are primarily catabolized by ACAD10 and ACAD11 (atypical mitochondrial and peroxisomal acyl-CoA dehydrogenases, respectively) ... 23619
Reposted by Judi Simcoxtafesselab.bsky.social @tafesselab.bsky.social · 10/06/2025It’s finally out! Started this project as a PhD student in the @holthuislab.bsky.social lab & finished by my PhD student. Full-circle moment and the end of an era. 😊 Thanks to Gaelen and everyone who made this happen. @ohsummi.bsky.social @ohsunews.bsky.social pubmed.ncbi.nlm.nih.gov/40473211/pubmed.ncbi.nlm.nih.govCharacterization of C. elegans sphingomyelin synthases through heterologous expression - PubMedSphingomyelin (SM) is a major component of mammalian cell membranes and particularly abundant in the myelin sheath that surrounds nerve fibers. Its production is catalyzed by SM synthases SMS1 and SMS... 0123
Judi Simcox @judisimcox.bsky.social · 06/06/2025Proud of the Simcox and Parks labs, at our annual retreat we spent the afternoon volunteering to remove invasive plants from the arboretum and making beds for shelter cats. 0152
Reposted by Judi SimcoxNatalie Niemi @nieminm.bsky.social · 29/05/2025Very excited to share our latest work, “Mitochondrial presequences harbor variable strengths to maintain organellar function,” led by the fantastically talented @washubbsb.bsky.social graduate student Youmian Yan. A 🧵 www.biorxiv.org/content/10.1...biorxiv.orgMitochondrial presequences harbor variable strengths to maintain organellar functionHundreds of mitochondrial-destined proteins rely on N-terminal presequences for organellar targeting and import. While generally described as positively charged amphipathic helices, presequences lack ... 47427