Engineered multifunctional biodegradable hybrid microparticles for paclitaxel delivery in cancer therapy

• Published in: Materials Science & Engineering C Vol. 102; pp. 113 - 123
• Main Authors: Dwivedi, Pankaj, Han, Shuya, Mangrio, Farhana, Fan, Rong, Dwivedi, Monika, Zhu, Zhiqiang, Huang, Fangsheng, Wu, Qiang, Khatik, Renuka, Cohn, David E., Si, Ting, Hu, Shuiying, Sparreboom, Alex, Xu, Ronald X.
• Format: Journal Article
• Language: English
• Published: Netherlands Elsevier B.V 01-09-2019; Elsevier BV
• Subjects: Animals; Anticancer properties; Antineoplastic Agents, Phytogenic - pharmacology; Apoptosis - drug effects; Biocompatibility; Biocompatible Materials - chemistry; Biodegradability; Biodegradation; Cancer therapies; Cell Line, Tumor; Chemoresistance; Chemotherapy; Coating effects; Coaxial electrohydrodynamic process; Core-shell microparticles; Drug delivery; Drug Delivery Systems; Electrohydrodynamics; Encapsulation; Endocytosis - drug effects; Female; Flow cytometry; Fluorescence; Fluorescence microscopy; Glycolic acid; Humans; Hybrid particles; Hydrophobicity; In vivo methods and tests; Lactic acid; Lipids; Materials science; Metastases; Mice, Nude; Microparticles; Microscopy; Microspheres; Multilayers; Ovarian cancer; Ovarian Neoplasms - drug therapy; Ovarian Neoplasms - pathology; Paclitaxel; Paclitaxel - administration & dosage; Paclitaxel - pharmacology; Paclitaxel - therapeutic use; Paclitaxel delivery; Particle interactions; Particle Size; Particle size distribution; Peritoneum; Polylactide-co-glycolide; Size distribution; Toxicity; Transmission electron microscopy; Xenografts; Xenotransplantation; Core-shell microparticles; Paclitaxel delivery; Hybrid particles; Coaxial electrohydrodynamic process; Ovarian cancer
• ISSN: 0928-4931; 1873-0191
• DOI: 10.1016/j.msec.2019.03.009

Ovarian cancer is one of the most lethal gynecologic malignancies due to its rapid proliferation, frequent acquisition of chemoresistance, and widespread metastasis within the peritoneal cavity. Intraperitoneal (IP) chemotherapy has demonstrated significant anti-cancer potential but its broad clinical application is hindered by several drug delivery limitations. Herein, we engineer paclitaxel (PTX) laden hybrid microparticles (PTX-Hyb-MPs) for improved delivery of chemotherapy in ovarian cancer. The PTX-Hyb-MPs are comprised of a lipid-coated shell of poly (lactic acid-co-glycolic acid) (PLGA) encapsulating hydrophobic PTX. A co-axial electrohydrodynamic (CEH) process is used for one-step and scalable production of the PTX-Hyb-MP agent with controlled particles size, uniform size distribution, tunable thickness, and high encapsulation rate (92.17 ± 6.9%). The multi-layered structure of the PTX-Hyb-MPs is verified by transmission electron microscopy and confocal fluorescence microscopy. The effect of lipid coating on the enhancement of particle interactions with cancer cells is studied by flow cytometry and confocal fluorescence microscopy. The anti-cancer effect of the PTX-Hyb-MPs is evaluated in SKOV-3 ovarian cancer cells in vitro and a cancer xenograft model in vivo, in comparison with conventional drug delivery methods. Our studies reveal that the PTX-Hyb-MP agent can be potentially used for locoregional treatment of ovarian cancer and other tissue malignancies with sustained drug release, tunable release profiles, enhanced drug uptake, and reduced systemic toxicity.
•We engineered paclitaxel laden hybrid microparticles (PTX-Hyb-MPs) by single step co-axial electrohydrodynamic (CEH) process.•The PTX-Hyb-MPs were comprised of a lipid-coated shell of poly (lactic acid-co-glycolic acid) (PLGA) encapsulating hydrophobic PTX.•Controlled particles size, uniform size distribution, tunable thickness, and high encapsulation rate could be achieved by CEH process.•The lipid-coated PTX-Hyb-MPs have high affinity towards cancer cells as suggested by flow cytometry and confocal fluorescence microscopy.