PMID- 31723130 OWN - NLM STAT- MEDLINE DCOM- 20200228 LR - 20231019 IS - 2041-1723 (Electronic) IS - 2041-1723 (Linking) VI - 10 IP - 1 DP - 2019 Nov 13 TI - Renal clearable nanochelators for iron overload therapy. PG - 5134 LID - 10.1038/s41467-019-13143-z [doi] LID - 5134 AB - Iron chelators have been widely used to remove excess toxic iron from patients with secondary iron overload. However, small molecule-based iron chelators can cause adverse side effects such as infection, gastrointestinal bleeding, kidney failure, and liver fibrosis. Here we report renal clearable nanochelators for iron overload disorders. First, after a singledose intravenous injection, the nanochelator shows favorable pharmacokinetic properties, such as kidney-specific biodistribution and rapid renal excretion (>80% injected dose in 4 h), compared to native deferoxamine (DFO). Second, subcutaneous (SC) administration of nanochelators improves pharmacodynamics, as evidenced by a 7-fold increase in efficiency of urinary iron excretion compared to intravenous injection. Third, daily SC injections of the nanochelator for 5 days to iron overload mice and rats decrease iron levels in serum and liver. Furthermore, the nanochelator significantly reduces kidney damage caused by iron overload without demonstrating DFO's own nephrotoxicity. This renal clearable nanochelator provides enhanced efficacy and safety. FAU - Kang, Homan AU - Kang H AUID- ORCID: 0000-0002-0732-9779 AD - Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, 02114, USA. FAU - Han, Murui AU - Han M AD - Department of Pharmaceutical Sciences, Northeastern University, Boston, MA, 02115, USA. FAU - Xue, Jie AU - Xue J AD - Department of Pharmaceutical Sciences, Northeastern University, Boston, MA, 02115, USA. FAU - Baek, Yoonji AU - Baek Y AD - Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, 02114, USA. FAU - Chang, JuOae AU - Chang J AD - Department of Pharmaceutical Sciences, Northeastern University, Boston, MA, 02115, USA. FAU - Hu, Shuang AU - Hu S AD - Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, 02114, USA. FAU - Nam, HaYoung AU - Nam H AD - Department of Pharmaceutical Sciences, Northeastern University, Boston, MA, 02115, USA. FAU - Jo, Min Joo AU - Jo MJ AD - Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, 02114, USA. FAU - El Fakhri, Georges AU - El Fakhri G AD - Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, 02114, USA. FAU - Hutchens, Michael P AU - Hutchens MP AUID- ORCID: 0000-0001-8583-1812 AD - Anesthesiology and Perioperative Medicine, Oregon Health & Science University, Portland, OR, 97239, USA. AD - Portland Veterans Affairs Medical Center, Portland, OR, 97239, USA. FAU - Choi, Hak Soo AU - Choi HS AUID- ORCID: 0000-0002-7982-6483 AD - Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, 02114, USA. hchoi12@mgh.harvard.edu. FAU - Kim, Jonghan AU - Kim J AD - Department of Pharmaceutical Sciences, Northeastern University, Boston, MA, 02115, USA. j.kim@neu.edu. LA - eng GR - I01 BX004288/BX/BLRD VA/United States GR - R01 EB022230/EB/NIBIB NIH HHS/United States GR - R01 HL143020/HL/NHLBI NIH HHS/United States GR - U54 HL119145/HL/NHLBI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20191113 PL - England TA - Nat Commun JT - Nature communications JID - 101528555 RN - 0 (Iron Chelating Agents) RN - J06Y7MXW4D (Deferoxamine) SB - IM MH - Animals MH - Deferoxamine/pharmacokinetics/therapeutic use/toxicity MH - Iron Chelating Agents/chemistry/pharmacology/*therapeutic use MH - Iron Overload/*drug therapy MH - Kidney/*pathology MH - Male MH - Mice MH - Nanoparticles/*chemistry/toxicity/ultrastructure MH - Tissue Distribution PMC - PMC6853917 COIS- The authors declare no competing interests. EDAT- 2019/11/15 06:00 MHDA- 2020/02/29 06:00 PMCR- 2019/11/13 CRDT- 2019/11/15 06:00 PHST- 2019/06/23 00:00 [received] PHST- 2019/10/22 00:00 [accepted] PHST- 2019/11/15 06:00 [entrez] PHST- 2019/11/15 06:00 [pubmed] PHST- 2020/02/29 06:00 [medline] PHST- 2019/11/13 00:00 [pmc-release] AID - 10.1038/s41467-019-13143-z [pii] AID - 13143 [pii] AID - 10.1038/s41467-019-13143-z [doi] PST - epublish SO - Nat Commun. 2019 Nov 13;10(1):5134. doi: 10.1038/s41467-019-13143-z.