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Birhan YS, Darge HF, Hanurry EY, Andrgie AT, Mekonnen TW, Chou HY, Lai JY, Tsai HC. Fabrication of Core Crosslinked Polymeric Micelles as Nanocarriers for Doxorubicin Delivery: Self-Assembly, In Situ Diselenide Metathesis and Redox-Responsive Drug Release. Pharmaceutics 2020; 12:E580. [PMID: 32585885 PMCID: PMC7356386 DOI: 10.3390/pharmaceutics12060580] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 06/09/2020] [Accepted: 06/17/2020] [Indexed: 11/23/2022] Open
Abstract
Polymeric micelles (PMs) have been used to improve the poor aqueous solubility, slow absorption and non-selective biodistribution of chemotherapeutic agents (CAs), albeit, they suffer from disassembly and premature release of payloads in the bloodstream. To alleviate the thermodynamic instability of PMs, different core crosslinking approaches were employed. Herein, we synthesized the poly(ethylene oxide)-b-poly((2-aminoethyl)diselanyl)ethyl l-aspartamide)-b-polycaprolactone (mPEG-P(LA-DSeDEA)-PCL) copolymer which self-assembled into monodispersed nanoscale, 156.57 ± 4.42 nm, core crosslinked micelles (CCMs) through visible light-induced diselenide metathesis reaction between the pendant selenocystamine moieties. The CCMs demonstrated desirable doxorubicin (DOX)-loading content (7.31%) and encapsulation efficiency (42.73%). Both blank and DOX-loaded CCMs (DOX@CCMs) established appreciable colloidal stability in the presence of bovine serum albumin (BSA). The DOX@CCMs showed redox-responsive drug releasing behavior when treated with 5 and 10 mM reduced glutathione (GSH) and 0.1% H2O2. Unlike the DOX-loaded non-crosslinked micelles (DOX@NCMs) which exhibited initial burst release, DOX@CCMs demonstrated a sustained release profile in vitro where 71.7% of the encapsulated DOX was released within 72 h. In addition, the in vitro fluorescent microscope images and flow cytometry analysis confirmed the efficient cellular internalization of DOX@CCMs. The in vitro cytotoxicity test on HaCaT, MDCK, and HeLa cell lines reiterated the cytocompatibility (≥82% cell viability) of the mPEG-P(LA-DSeDEA)-PCL copolymer and DOX@CCMs selectively inhibit the viabilities of 48.85% of HeLa cells as compared to 15.75% of HaCaT and 7.85% of MDCK cells at a maximum dose of 10 µg/mL. Overall, all these appealing attributes make CCMs desirable as nanocarriers for the delivery and controlled release of DOX in tumor cells.
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Affiliation(s)
- Yihenew Simegniew Birhan
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan; (Y.S.B.); (H.F.D.); (E.Y.H.); (A.T.A.); (T.W.M.); (H.-Y.C.); (J.-Y.L.)
| | - Haile Fentahun Darge
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan; (Y.S.B.); (H.F.D.); (E.Y.H.); (A.T.A.); (T.W.M.); (H.-Y.C.); (J.-Y.L.)
| | - Endiries Yibru Hanurry
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan; (Y.S.B.); (H.F.D.); (E.Y.H.); (A.T.A.); (T.W.M.); (H.-Y.C.); (J.-Y.L.)
| | - Abegaz Tizazu Andrgie
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan; (Y.S.B.); (H.F.D.); (E.Y.H.); (A.T.A.); (T.W.M.); (H.-Y.C.); (J.-Y.L.)
| | - Tefera Worku Mekonnen
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan; (Y.S.B.); (H.F.D.); (E.Y.H.); (A.T.A.); (T.W.M.); (H.-Y.C.); (J.-Y.L.)
| | - Hsiao-Ying Chou
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan; (Y.S.B.); (H.F.D.); (E.Y.H.); (A.T.A.); (T.W.M.); (H.-Y.C.); (J.-Y.L.)
| | - Juin-Yih Lai
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan; (Y.S.B.); (H.F.D.); (E.Y.H.); (A.T.A.); (T.W.M.); (H.-Y.C.); (J.-Y.L.)
- Advanced Membrane Materials Center, National Taiwan University of Science and Technology, Taipei 106, Taiwan
- R&D Center for Membrane Technology, Chung Yuan Christian University, Chungli, Taoyuan 320, Taiwan
| | - Hsieh-Chih Tsai
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan; (Y.S.B.); (H.F.D.); (E.Y.H.); (A.T.A.); (T.W.M.); (H.-Y.C.); (J.-Y.L.)
- Advanced Membrane Materials Center, National Taiwan University of Science and Technology, Taipei 106, Taiwan
- R&D Center for Membrane Technology, Chung Yuan Christian University, Chungli, Taoyuan 320, Taiwan
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Biodegradable Nanofiber for Delivery of Immunomodulating Agent in the Treatment of Basal Cell Carcinoma. FIBERS 2015. [DOI: 10.3390/fib3040478] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Wan Y, Gan Z, Li Z. Effects of the surface charge on the stability of PEG-b-PCL micelles: simulation of the interactions between charged micelles and plasma components. Polym Chem 2014. [DOI: 10.1039/c3py01281f] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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