Cited by 67Hydrogels: synthesis, properties, applicationsAdvanced Drug Delivery SystemsWound Healing and Treatments

Thermogelling chitosan-based polymers for the treatment of oral mucosa ulcers

Luo, Zheng, Xue, Kun, Zhang, Xikui, Lim, Jason Y. C., Lai, Xiyu, Young, David James, Zhang, Zhong-Xing, Wu, Yun-Long +1 more·2020·Biomaterials Science

Abstract

Current treatments for oral mucosa-related ulcers use drugs to relieve pain and promote healing, but rarely consider drug resistance to bacterial infection in the microenvironment of the oral cavity or the prevention of bleeding from gingival mucosa ulcers. We herein report an injectable, thermogelling chitosan-based system to address these concerns. An aqueous solution of chitosan-based conjugates (chitosan-g-poly(N-isopropylacrylamide) [CS-g-PNIPAAM] including 1a [CS-g-PNIPAAM with less PNIPAAM] and 1b [CS-g-PNIPAAM with more PNIPAAM], and chitosan-g-poly(N-isopropylacrylamide)-g-polyacrylamide [CS-g-PNIPAAM-g-PAM] 3) could reversibly form semi-solid gels at physiological temperatures for easy application to oral cavity ulcer sites by injection. The chitosan-based conjugate thermogels prepared could inhibit both Gram-positive and Gram-negative bacteria and the two with higher chitosan and poly(N-isopropylacrylamide) contents (1a and 1b) promoted proliferation of gingival fibroblasts in vitro. These two thermogels also exhibited improved blood clotting in an in vivo rat study. Thermogels 1a and 1b effectively promoted ulcer healing and shortened ulcer healing times in an oral gingival mucosa ulcer model using Sprague Dawley (SD) rats. These thermogels showed no obvious toxicity to the main organs of SD rats undergoing gingival ulcer treatment. These results suggest that this antibacterial biomaterial could be a promising injectable therapeutic agent for the treatment for oral mucosa ulcers.

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Crossref · 10.1039/c9bm01754b

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  • Albumin particles containing the anti-inflammatory piroxicam have been reported to increase bioavailability by 1.8-fold upon topical ocular administration in rabbits compared with standard commercial eyedrops.

    “Albumin particles containing the anti-inflammatory piroxicam have been reported to increase bioavailability by 1.8-fold upon topical ocular administration in rabbits compared with standard commercial eyedrops [96].”

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Authors
Luo, Z., Xue, K., Zhang, X., Lim, J. Y. C., Lai, X., Young, D. J., Zhang, Z.-X., Wu, Y.-L., & Loh, X. J.
Affiliations
  • Xiamen University (CN)
  • Agency for Science, Technology and Research (SG)
  • Charles Darwin University (AU)
Corresponding author
  • Zhang, Zhong-Xing
  • Wu, Yun-Long
  • Loh, Xian Jun
Venue
Biomaterials Science
Published
2020
Volume
8
Issue
5
Pages
1364-1379
ISSN
  • 2047-4830 (ISSN-L)
  • 2047-4849
OpenAlex
W2998551865
Cited by
67
References
79
Citations by year
2026: 9 · 2025: 7 · 2024: 9 · 2023: 9 · 2022: 14 · 2021: 10 · 2020: 9
FWCI
2.86
Type
journal article
Language
en
Open access
closed
Locations
  • Biomaterials Science (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Medicine › Hydrogels: synthesis, properties, applications
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmaceutical Science › Advanced Drug Delivery Systems
  • Health Sciences › Medicine › Rehabilitation › Wound Healing and Treatments
Keywords
thermosensitive hydrogel, chitosan, poly(N-isopropylacrylamide), gingival ulcer, antibacterial biomaterials, injectable therapy, ulcer healing, coagulation, polyacrylamide, oral bacterial infections
MeSH terms
Animals, Anti-Ulcer Agents, Anti-Bacterial Agents, Cell Line, Cell Survival, Escherichia coli, Gels, Humans, Microbial Sensitivity Tests, Mouth Mucosa, Polymers, Staphylococcus aureus, Temperature, Ulcer, Rats, Sprague-Dawley, Chitosan, Rats

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