{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,1]],"date-time":"2026-06-01T17:15:09Z","timestamp":1780334109143,"version":"3.54.1"},"reference-count":38,"publisher":"The Company of Biologists","issue":"5","license":[{"start":{"date-parts":[[2026,5,26]],"date-time":"2026-05-26T00:00:00Z","timestamp":1779753600000},"content-version":"vor","delay-in-days":25,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0"}],"funder":[{"DOI":"10.13039\/100000002","name":"National Institutes of Health","doi-asserted-by":"crossref","award":["R01HD100229"],"award-info":[{"award-number":["R01HD100229"]}],"id":[{"id":"10.13039\/100000002","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,5,1]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>Integrase strand transfer inhibitors have transformed human immunodeficiency virus (HIV) therapy, yet the widely prescribed drug dolutegravir (DTG) has been linked to developmental toxicity, and its teratogenic mechanism remains unclear. Here, we used zebrafish to dissect DTG toxicity during early vertebrate development. DTG exposure from 2-4\u2005h post-fertilization (hpf) to 24\u2005hpf produced high mortality and abnormal morphology. Co-treatment with folates partially restored normal morphology, whereas calcium had no effect. Strikingly, supplementation with magnesium (Mg) partially rescued DTG-exposed embryos, implicating Mg availability in protection. In competitive binding assays, Mg increased binding of folate to purified folate receptor (FOLR1) by 30% in the presence of DTG. folr1 mutant embryos contained significantly less endogenous folate than wild-type embryos and displayed marked hypersensitivity to DTG that could not be mitigated by folate supplementation. Critically, Mg supplementation partially rescued DTG toxicity in folr1 mutants, indicating a Folr1-independent component and placing the balance between free DTG and Mg-bound DTG upstream of folate transport. These results support a model in which free DTG antagonizes FOLR1 and Mg modifies DTG developmental toxicity through FOLR1-dependent and -independent processes.<\/jats:p>","DOI":"10.1242\/dmm.052632","type":"journal-article","created":{"date-parts":[[2026,4,23]],"date-time":"2026-04-23T06:32:08Z","timestamp":1776925928000},"source":"Crossref","is-referenced-by-count":2,"title":["Dolutegravir developmental toxicity is mitigated by magnesium and folate in zebrafish embryos"],"prefix":"10.1242","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2998-0482","authenticated-orcid":false,"given":"Robert M.","family":"Cabrera","sequence":"first","affiliation":[{"name":"Center for Precision Environmental Health , Department of Molecular and Cellular Biology , , Houston, TX 77030 ,","place":["USA"]},{"name":"Baylor College of Medicine , Department of Molecular and Cellular Biology , , Houston, TX 77030 ,","place":["USA"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ahmed","family":"Mohamed","sequence":"additional","affiliation":[{"name":"Center for Precision Environmental Health , Department of Molecular and Cellular Biology , , Houston, TX 77030 ,","place":["USA"]},{"name":"Baylor College of Medicine , Department of Molecular and Cellular Biology , , Houston, TX 77030 ,","place":["USA"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ryoko","family":"Minowa","sequence":"additional","affiliation":[{"name":"Center for Precision Environmental Health , Department of Molecular and Cellular Biology , , Houston, TX 77030 ,","place":["USA"]},{"name":"Baylor College of Medicine , Department of Molecular and Cellular Biology , , Houston, TX 77030 ,","place":["USA"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Katheryn A.","family":"Neugebauer","sequence":"additional","affiliation":[{"name":"Center for Precision Environmental Health , Department of Molecular and Cellular Biology , , Houston, TX 77030 ,","place":["USA"]},{"name":"Baylor College of Medicine , Department of Molecular and Cellular Biology , , Houston, TX 77030 ,","place":["USA"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5021-0020","authenticated-orcid":false,"given":"Daniel A.","family":"Gorelick","sequence":"additional","affiliation":[{"name":"Center for Precision Environmental Health , Department of Molecular and Cellular Biology , , Houston, TX 77030 ,","place":["USA"]},{"name":"Baylor College of Medicine , Department of Molecular and Cellular Biology , , Houston, TX 77030 ,","place":["USA"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"237","published-online":{"date-parts":[[2026,5,26]]},"reference":[{"key":"2026052608181140800_DMM052632C1","doi-asserted-by":"publisher","first-page":"1591","DOI":"10.1016\/j.theriogenology.2005.03.018","article-title":"The effect of external medium composition on membrane water permeability of zebrafish (Danio rerio) embryos","volume":"64","author":"Adams","year":"2005","journal-title":"Theriogenology"},{"key":"2026052608181140800_DMM052632C2","doi-asserted-by":"publisher","first-page":"e1004267","DOI":"10.1371\/journal.pgen.1004267","article-title":"CNNM2 mutations cause impaired brain development and seizures in patients with hypomagnesemia","volume":"10","author":"Arjona","year":"2014","journal-title":"PLoS Genet."},{"key":"2026052608181140800_DMM052632C3","doi-asserted-by":"publisher","first-page":"845","DOI":"10.1007\/s00424-018-2234-9","article-title":"SLC41A1 is essential for magnesium homeostasis in vivo","volume":"471","author":"Arjona","year":"2019","journal-title":"Pflugers Arch."},{"key":"2026052608181140800_DMM052632C4","doi-asserted-by":"publisher","first-page":"gkag057","DOI":"10.1093\/nar\/gkag057","article-title":"Transient acute neuronal activation response caused by high concentrations of oligonucleotides in the cerebral spinal fluid","volume":"54","author":"Bravo-Hernandez","year":"2026","journal-title":"Nucleic Acids Res."},{"key":"2026052608181140800_DMM052632C35","doi-asserted-by":"publisher","first-page":"2025","DOI":"10.1242\/dev.134809","article-title":"Maximizing mutagenesis with solubilized CRISPR-Cas9 ribonucleoprotein complexes","volume":"143","author":"Burger","year":"2016","journal-title":"Development"},{"key":"2026052608181140800_DMM052632C5","doi-asserted-by":"publisher","first-page":"85","DOI":"10.1016\/j.jri.2008.08.002","article-title":"Autoantibodies to folate receptor during pregnancy and neural tube defect risk","volume":"79","author":"Cabrera","year":"2008","journal-title":"J. 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