PMID- 29097141 OWN - NLM STAT- MEDLINE DCOM- 20180830 LR - 20181202 IS - 1873-3476 (Electronic) IS - 0378-5173 (Linking) VI - 535 IP - 1-2 DP - 2018 Jan 15 TI - Self-assembled nanocomplex of PEGylated protamine and heparin-suramin conjugate for accumulation at the tumor site. PG - 38-46 LID - S0378-5173(17)31035-9 [pii] LID - 10.1016/j.ijpharm.2017.10.055 [doi] AB - Heparin-like sulfated polysaccharides are potential drug candidates owing to their ability to interact with angiogenic factors and inhibit angiogenesis, tumor growth, and metastasis. This study aimed to improve the delivery of heparin-like anticancer polysaccharides for accumulation at the tumor site. We designed a nanocarrier system using protamine attached to polyethylene glycol (PEG) and evaluated the stability, tumor targeting, and tumor growth inhibition of the nanocarrier loaded with heparin derivatives. When mixed with various polyanionic heparin derivatives, the polycationic PEG-protamine formed stable self-assembled nanocomplexes via ionic interactions, with flexible PEG chains located on the outside. Among the complexes, a nanocomplex loaded with a low-molecular-weight heparin-suramin conjugate (LHsura) had the most suitable average size (101.9nm) for the enhanced permeability and retention effect and allowed accumulation of LHsura at the tumor site for up to 48h. In a tumor-bearing mouse model, the PEG-protamine and LHsura nanocomplex (10mg/kg/3days, intravenously), which could be extravasated through the tumor vasculature, significantly inhibited tumor growth, more than LHsura alone did. Overall, the self-assembled nanocomplexation of PEG-protamine and LHsura helped control the release and extravasation of LHsura, which resulted in an antitumor effect on the target tumor cells. CI - Copyright (c) 2017 Elsevier B.V. All rights reserved. FAU - Park, Jooho AU - Park J AD - Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, 151-742, Republic of Korea; Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul, 136-791, Republic of Korea. FAU - Hwang, Seung Rim AU - Hwang SR AD - College of Pharmacy, Chosun University, Gwangju, 501-759, Republic of Korea; Department of Biomedical Sciences, Graduate School, Chosun University, Gwangju, 501-759, Republic of Korea. FAU - Choi, Jeong Uk AU - Choi JU AD - Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, 151-742, Republic of Korea. FAU - Alam, Farzana AU - Alam F AD - Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX, 79106, USA. FAU - Byun, Youngro AU - Byun Y AD - Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, 151-742, Republic of Korea; Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-742, Republic of Korea. Electronic address: yrbyun@snu.ac.kr. LA - eng PT - Journal Article DEP - 20171031 PL - Netherlands TA - Int J Pharm JT - International journal of pharmaceutics JID - 7804127 RN - 0 (Antineoplastic Agents) RN - 0 (Drug Carriers) RN - 0 (Heparin, Low-Molecular-Weight) RN - 0 (Nanoconjugates) RN - 0 (Protamines) RN - 3WJQ0SDW1A (Polyethylene Glycols) RN - 6032D45BEM (Suramin) SB - IM MH - Animals MH - Antineoplastic Agents/administration & dosage MH - Cell Line, Tumor MH - Drug Carriers/chemical synthesis/*chemistry/pharmacokinetics MH - Heparin, Low-Molecular-Weight/*chemistry/pharmacokinetics MH - Mice, Inbred BALB C MH - Mice, Nude MH - Molecular Docking Simulation MH - Nanoconjugates/*chemistry MH - Neoplasms, Experimental/*metabolism MH - Particle Size MH - Polyethylene Glycols/chemistry MH - Protamines/*chemistry/pharmacokinetics MH - Suramin/*chemistry/pharmacokinetics MH - Surface Properties MH - Tissue Distribution OTO - NOTNLM OT - Heparin OT - Polyethylene glycol OT - Protamine OT - Self-assembled nanocomplex OT - Suramin OT - Tumor targeting EDAT- 2017/11/04 06:00 MHDA- 2018/08/31 06:00 CRDT- 2017/11/04 06:00 PHST- 2017/06/28 00:00 [received] PHST- 2017/10/24 00:00 [revised] PHST- 2017/10/29 00:00 [accepted] PHST- 2017/11/04 06:00 [pubmed] PHST- 2018/08/31 06:00 [medline] PHST- 2017/11/04 06:00 [entrez] AID - S0378-5173(17)31035-9 [pii] AID - 10.1016/j.ijpharm.2017.10.055 [doi] PST - ppublish SO - Int J Pharm. 2018 Jan 15;535(1-2):38-46. doi: 10.1016/j.ijpharm.2017.10.055. Epub 2017 Oct 31.