{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"institution":[{"name":"bioRxiv"}],"indexed":{"date-parts":[[2026,11,6]],"date-time":"2026-11-06T01:50:32Z","timestamp":1793929832792,"version":"4.8.0"},"posted":{"date-parts":[[2026,3,16]]},"group-title":"Neuroscience","reference-count":53,"publisher":"openRxiv","license":[{"start":{"date-parts":[[2026,3,16]],"date-time":"2026-03-16T00:00:00Z","timestamp":1773619200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"funder":[{"award":["R01NS121608"],"award-info":[{"award-number":["R01NS121608"]}],"id":[{"id":"https:\/\/ror.org\/01cwqze88","id-type":"ROR","asserted-by":"publisher"}]},{"award":["R01NS074324"],"award-info":[{"award-number":["R01NS074324"]}],"id":[{"id":"https:\/\/ror.org\/01cwqze88","id-type":"ROR","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"accepted":{"date-parts":[[2026,3,16]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                <jats:p>\n                  Quantitative evaluation of protein turnover in human neurons is crucial for understanding neuron homeostasis and guiding drug development for neurological diseases. However, measuring protein turnover in postmitotic neurons remains challenging due to the high dynamic range of protein half-lives and limited proteome coverage in SILAC (Stable Isotope Labeling by Amino acids in Cell culture) experiments. Despite broad applications of dynamic SILAC proteomics to measure protein turnover in rodent tissues and primary neurons, few studies have measured protein half-lives in human neurons with limited proteome coverage. Here, we established a comprehensive platform to quantify protein half-lives in human induced pluripotent stem cell (iPSC)-derived neurons. By integrating optimized dynamic SILAC labeling in human neuron cultures, extensive peptide fractionation, optimized data-dependent and data-independent LC-MS\/MS acquisition methods, and a streamlined computational pipeline, we achieved deep and accurate measurement of 10,792 protein half-lives from 162,854 unique peptides. We then compared the protein turnover and abundances in iPSC-derived glutamatergic cortical neurons and spinal motor neurons, revealing globally conserved proteome dynamics alongside subtype-specific differences consistent with specialized neuronal functions. To enable broad community access, we created NeuronProfile (\n                  <jats:ext-link xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" ext-link-type=\"uri\" xlink:href=\"https:\/\/www.neuronprofile.com\">www.neuronprofile.com<\/jats:ext-link>\n                  ), an interactive web platform for exploring protein turnover, abundance, and subcellular location in human neurons. Together, this work provides a comprehensive analytical platform to assess human neuronal proteostasis and a foundational resource for neurological disease research and therapeutic development.\n                <\/jats:p>","DOI":"10.64898\/2026.03.14.711828","type":"posted-content","created":{"date-parts":[[2026,3,16]],"date-time":"2026-03-16T09:40:06Z","timestamp":1773654006000},"source":"Crossref","is-referenced-by-count":4,"title":["A Deep Quantitative Proteome Turnover Platform for Human iPSC-derived Neurons"],"prefix":"10.64898","author":[{"given":"Ashley M.","family":"Frankenfield","sequence":"first","affiliation":[{"name":"Department of Chemistry, George Washington University, Washington, DC, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jamison","family":"Shih","sequence":"additional","affiliation":[{"name":"Department of Chemistry & Biochemistry, University of Maryland, College Park, MD, 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University of Chicago, Chicago, IL, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2626-3912","authenticated-orcid":false,"given":"Yansheng","family":"Liu","sequence":"additional","affiliation":[{"name":"Department of Pharmacology, Yale University School of Medicine, New Haven, CT, USA"},{"name":"Cancer Biology Institute, Yale University School of Medicine, West Haven, CT, USA"},{"name":"Department of Biomedical Informatics & Data Science, Yale University School of Medicine, New Haven, CT, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9115-8708","authenticated-orcid":false,"given":"Jiou","family":"Wang","sequence":"additional","affiliation":[{"name":"Department of Biochemistry and Molecular Biology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA"},{"name":"Department of Neuroscience, School of Medicine, Johns Hopkins University, Baltimore, MD, 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