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Gonsalves A, Tambe P, Le D, Thakore D, Wadajkar AS, Yang J, Nguyen KT, Menon JU. Synthesis and characterization of a novel pH-responsive drug-releasing nanocomposite hydrogel for skin cancer therapy and wound healing. J Mater Chem B 2021; 9:9533-9546. [PMID: 34757371 PMCID: PMC8725646 DOI: 10.1039/d1tb01934a] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Local skin cancer recurrence occurs in ∼12% of the patients post-surgery due to persistent growth of residual cancer cells. Wound infection is another significant complication following surgery. We report a novel in situ-forming nanocomposite hydrogel (NCH) containing PLGA-carboxymethyl chitosan nanoparticles (186 nm) for localized pH-responsive skin cancer therapy and wound healing. This injectable hydrogel, comprising of a citric acid-derived polymer backbone, gelled within 5 minutes, and demonstrated excellent swelling (283% of dry weight) and compressive strengths (∼5.34 MPa). Nanoparticle incorporation did not significantly affect hydrogel properties. The NCH effluents were cytocompatible with human dermal fibroblasts at 500 μg ml-1 concentration and demonstrated pH-dependent drug release and promising therapeutic efficacy against A431 and G361 skin cancer cells in vitro. Significant zones of inhibition were observed in S. aureus and E. coli cultures on NCH treatment, confirming its antibacterial properties. Our studies show that the pH-responsive NCH can be potentially used for adjuvant skin cancer treatment and wound healing.
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Affiliation(s)
- Andrea Gonsalves
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, 7 Greenhouse Road, Kingston, RI 02881, USA.
| | - Pranjali Tambe
- Department of Bioengineering, University of Texas at Arlington, Arlington, TX 76019, USA
- Department of Biomedical Engineering, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Duong Le
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, 7 Greenhouse Road, Kingston, RI 02881, USA.
| | - Dheeraj Thakore
- Department of Bioengineering, University of Texas at Arlington, Arlington, TX 76019, USA
- Department of Biomedical Engineering, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Aniket S Wadajkar
- Department of Bioengineering, University of Texas at Arlington, Arlington, TX 76019, USA
- Department of Biomedical Engineering, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
- Department of Neurosurgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA
- Marlene and Stewart Greenebaum Comprehensive Cancer Center, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Jian Yang
- Department of Biomedical Engineering, Pennsylvania State University, University Park, PA 16802, USA
| | - Kytai T Nguyen
- Department of Bioengineering, University of Texas at Arlington, Arlington, TX 76019, USA
- Department of Biomedical Engineering, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Jyothi U Menon
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, 7 Greenhouse Road, Kingston, RI 02881, USA.
- Department of Chemical Engineering, University of Rhode Island, Kingston, RI 02881, USA
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