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Therapeutic targeting of specific glial cell populations would open up new treatment possibilities, but currently available viral and non-viral delivery vehicles are limited by carrier toxicity as well as poor delivery efficiency and specificity. To work towards new glia-targeted, non-viral delivery vehicles, we performed an\n                  <jats:italic>in silico<\/jats:italic>\n                  analysis on neural cell specific RNA-Seq datasets in mice to identify surface molecules differentially enriched on neurons, astrocytes, and microglia. We identified\n                  <jats:italic>Slc2a5<\/jats:italic>\n                  (Glut5) as a microglia-enriched transporter and validated its microglia specific expression in healthy murine neural tissue using RNA in situ hybridization. By employing a sequential thiol-ene and enzymatic catalyzed reaction scheme, we synthesized polyelectrolytic dendrimers with multivalent presentation of fructose, the natural ligand for Glut5, and formulated nano-sized polyionic complexes (PICs) loaded with protein or nucleic acid cargo by mixing oppositely charged dendrimers. Fructose functionalized PICs lacking cationic surface charge enabled fructose-dependent intracellular protein delivery to Glut5-expressing human breast cancer cells (MCF-7) and mouse fibroblasts, while restricting uptake by Glut5-negative mouse astrocytes, confirming transporter-dependent selectivity\n                  <jats:italic>in vitro<\/jats:italic>\n                  . Fructose functionalized PICs resulted in minimal neuroinflammation when injected into mouse striatum at 1 mg\/ml but elicited concentration-dependent neural tissue toxicity at higher doses. Fructose-PICs failed to achieve microglia specific intracellular delivery of functional proteins when injected into healthy neural tissue but aided in directing protein delivery to microglia and astrocytes at ischemic stroke lesions. Together, our findings demonstrate proof-of-principle for using in silico RNA-seq screening workflows to identify cell specific surfaceome targets and incorporating that insight into a modular biomaterial platform for targeted drug delivery.\n                <\/jats:p>","DOI":"10.64898\/2026.09.24.754190","type":"posted-content","created":{"date-parts":[[2026,9,25]],"date-time":"2026-09-25T11:35:17Z","timestamp":1790336117000},"source":"Crossref","is-referenced-by-count":0,"title":["Fructose Dendrimer-Based Poly Ionic Complexes for Glut5-Specific Intracellular Drug Delivery in Murine Brain"],"prefix":"10.64898","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2136-4754","authenticated-orcid":false,"given":"P.S.","family":"Woods","sequence":"first","affiliation":[{"name":"Department of Biomedical Engineering, Boston University, Boston, MA, 02215-2407, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"G.","family":"Aldhahri","sequence":"additional","affiliation":[{"name":"Department of Biomedical Engineering, Boston University, Boston, MA, 02215-2407, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"E.","family":"Hanchar","sequence":"additional","affiliation":[{"name":"Department of Biomedical Engineering, Boston University, Boston, MA, 02215-2407, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"S.","family":"Dhulekar","sequence":"additional","affiliation":[{"name":"Department of Biomedical Engineering, Boston University, Boston, MA, 02215-2407, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Espinoza R.","family":"Ramos","sequence":"additional","affiliation":[{"name":"Department of Biomedical Engineering, Boston University, Boston, MA, 02215-2407, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"A.","family":"Pi\u00f1eiro","sequence":"additional","affiliation":[{"name":"Department of Biomedical Engineering, Boston University, Boston, MA, 02215-2407, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J.P","family":"Vincent","sequence":"additional","affiliation":[{"name":"Department of Biomedical Engineering, Boston University, Boston, MA, 02215-2407, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0812-1179","authenticated-orcid":false,"given":"T.M.","family":"O\u2019Shea","sequence":"additional","affiliation":[{"name":"Department of Biomedical Engineering, Boston University, Boston, MA, 02215-2407, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"54368","reference":[{"key":"2026092908201157000_2026.09.24.754190v1.1","doi-asserted-by":"publisher","DOI":"10.1038\/nn.4043"},{"key":"2026092908201157000_2026.09.24.754190v1.2","doi-asserted-by":"publisher","DOI":"10.1038\/nm.4397"},{"key":"2026092908201157000_2026.09.24.754190v1.3","doi-asserted-by":"crossref","unstructured":"Allen, N. & Barres, B . 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