PMID- 31349410 OWN - NLM STAT- MEDLINE DCOM- 20191230 LR - 20191230 IS - 1873-0191 (Electronic) IS - 0928-4931 (Linking) VI - 103 DP - 2019 Oct TI - Preparation and in vitro evaluation of radiolabeled HA-PLGA nanoparticles as novel MTX delivery system for local treatment of rheumatoid arthritis. PG - 109766 LID - S0928-4931(18)31299-2 [pii] LID - 10.1016/j.msec.2019.109766 [doi] AB - Radiosynovectomy is a technique used to decrease inflammation of the synovial tissue by intraarticular injection of a beta-emitting radionuclide, such as (177)Lu, which is suitable for radiotherapy due to its decay characteristics. Drug-encapsulating nanoparticles based on poly lactic‑co‑glycolic acid (PLGA) polymer are a suitable option to treat several arthritic diseases, used as anti-inflammatory drugs transporters of such as methotrexate (MTX), which has been widely used in the arthritis treatment (RA), and hyaluronic acid (HA), which specifically binds the CD44 and hyaluronan receptors overexpressed on the inflamed synovial tissue cells. The 1,4,7,10‑Tetraazacyclododecane‑1,4,7,10‑tetraacetic acid (DOTA) was used as complexing agent of Lutetium-177 for radiotherapy porpoises. The aim of this research was to synthesize (177)Lu-DOTA-HA-PLGA(MTX) as a novel, smart drug delivery system with target-specific recognition, potentially useful in radiosynovectomy for local treatment of rheumatoid arthritis. The polymeric nanoparticle system was prepared and chemically characterized. The MTX encapsulation and radiolabelling were performed with suitable characteristics for its in vitro evaluation. The HA-PLGA(MTX) nanoparticle mean diameter was 167.6 nm +/- 57.4 with a monomodal and narrow distribution. Spectroscopic techniques demonstrated the effective conjugation of HA and chelating agent DOTA to the polymeric nanosystem. The MTX encapsulation was 95.2% and the loading efficiency was 6%. The radiochemical purity was 96 +/- 2%, determined by ITLC. Conclusion: (177)Lu-DOTA-HA-PLGA(MTX) was prepared as a biocompatible polymeric PLGA nanoparticle conjugated to HA for specific targeting. The therapeutic nanosystem is based on bi-modal mechanisms using MTX as a disease-modifying antirheumatic drug (DMARD) and (177)Lu as a radiotherapeutic component. The (177)Lu-DOTA-HA-PLGA(MTX) nanoparticles showed properties suitable for radiosynovectomy and further specific targeted anti-rheumatic therapy. CI - Copyright (c) 2019 Elsevier B.V. All rights reserved. FAU - Trujillo-Nolasco, R Maydelid AU - Trujillo-Nolasco RM AD - Universidad Autonoma del Estado de Mexico, Facultad de Quimica Toluca-Mexico, Mexico; Instituto Nacional de Investigaciones Nucleares, Departamento de Materiales Radiactivos Ocoyoacac-Mexico, Mexico. FAU - Morales-Avila, Enrique AU - Morales-Avila E AD - Universidad Autonoma del Estado de Mexico, Facultad de Quimica Toluca-Mexico, Mexico. Electronic address: emoralesav@uaemex.mx. FAU - Ocampo-Garcia, Blanca E AU - Ocampo-Garcia BE AD - Instituto Nacional de Investigaciones Nucleares, Departamento de Materiales Radiactivos Ocoyoacac-Mexico, Mexico. FAU - Ferro-Flores, Guillermina AU - Ferro-Flores G AD - Instituto Nacional de Investigaciones Nucleares, Departamento de Materiales Radiactivos Ocoyoacac-Mexico, Mexico. FAU - Gibbens-Bandala, Brenda V AU - Gibbens-Bandala BV AD - Universidad Autonoma del Estado de Mexico, Facultad de Quimica Toluca-Mexico, Mexico; Instituto Nacional de Investigaciones Nucleares, Departamento de Materiales Radiactivos Ocoyoacac-Mexico, Mexico. FAU - Escudero-Castellanos, Alondra AU - Escudero-Castellanos A AD - Instituto Nacional de Investigaciones Nucleares, Departamento de Materiales Radiactivos Ocoyoacac-Mexico, Mexico; Universidad Autonoma del Estado de Mexico, Facultad de Medicina Toluca-Mexico, Mexico. FAU - Isaac-Olive, Keila AU - Isaac-Olive K AD - Universidad Autonoma del Estado de Mexico, Facultad de Medicina Toluca-Mexico, Mexico. LA - eng PT - Journal Article DEP - 20190519 PL - Netherlands TA - Mater Sci Eng C Mater Biol Appl JT - Materials science & engineering. C, Materials for biological applications JID - 101484109 RN - 0 (Radiopharmaceuticals) RN - 1SIA8062RS (Polylactic Acid-Polyglycolic Acid Copolymer) RN - 5H0DOZ21UJ (Lutetium) RN - 9004-61-9 (Hyaluronic Acid) RN - YL5FZ2Y5U1 (Methotrexate) SB - IM MH - Animals MH - Arthritis, Rheumatoid/metabolism/pathology/*therapy MH - Drug Evaluation, Preclinical MH - *Hyaluronic Acid/chemistry/pharmacology MH - Isotope Labeling MH - *Lutetium/chemistry/pharmacology MH - *Methotrexate/chemistry/pharmacology MH - Mice MH - *Polylactic Acid-Polyglycolic Acid Copolymer/chemistry/pharmacology MH - RAW 264.7 Cells MH - *Radiopharmaceuticals/chemistry/pharmacology OTO - NOTNLM OT - Lutetium-177 OT - Methotrexate OT - Polymeric nanoparticles OT - Radiosynovectomy OT - Smart drug delivery system OT - Targeted therapy EDAT- 2019/07/28 06:00 MHDA- 2019/12/31 06:00 CRDT- 2019/07/28 06:00 PHST- 2018/06/06 00:00 [received] PHST- 2019/01/09 00:00 [revised] PHST- 2019/05/16 00:00 [accepted] PHST- 2019/07/28 06:00 [entrez] PHST- 2019/07/28 06:00 [pubmed] PHST- 2019/12/31 06:00 [medline] AID - S0928-4931(18)31299-2 [pii] AID - 10.1016/j.msec.2019.109766 [doi] PST - ppublish SO - Mater Sci Eng C Mater Biol Appl. 2019 Oct;103:109766. doi: 10.1016/j.msec.2019.109766. Epub 2019 May 19.