1
|
Li Q, Zhang S, Du R, Yang Y, Liu Y, Wan Z, Yang X. Injectable Self-Healing Adhesive Natural Glycyrrhizic Acid Bioactive Hydrogel for Bacteria-Infected Wound Healing. ACS APPLIED MATERIALS & INTERFACES 2023; 15:17562-17576. [PMID: 36877626 DOI: 10.1021/acsami.2c23231] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Bioactive hydrogels self-assembled from naturally occurring herbal small molecules are attracting growing interest for applications in wound healing, due to their versatile intrinsic biological activities, excellent biocompatibility, as well as facile, sustainable, and eco-friendly processes. However, the development of supramolecular herb hydrogels with sufficient strength and multifunctionality as an ideal wound dressing in clinical practice remains a challenge. In this work, inspired by the efficient clinic therapy and directed self-assembly of natural saponin glycyrrhizic acid (GA), we create a novel GA-based hybrid hydrogel to promote full-thickness wound healing and bacterial-infected wound healing. This hydrogel possesses excellent stability and mechanical performance and multifunctional properties, including injectable, shape-adaptation and remodeling, self-healing, and adhesive abilities. This is attributed to the hierarchical dual-network that comprises the self-assembled hydrogen-bond fibrillar network of aldehyde-contained GA (AGA) and the dynamic covalent network through Schiff base reaction between AGA and a biopolymer carboxymethyl chitosan (CMC). Notably, benefiting from the inherent strong biological activity of GA, the AGA-CMC hybrid hydrogel exhibits unique and significant anti-inflammation effects and antibacterial ability, especially toward the Gram-positive Staphylococcus aureus (S. aureus). In vivo experiments demonstrate that the AGA-CMC hydrogel promotes uninfected skin wound healing and S. aureus-infected skin wound healing by enhancing the formation of granulation tissue, facilitating collagen deposition, reducing bacterial infection, and downregulating inflammatory response. This study highlights the design of new and multifunctional bioactive herb hydrogels from natural drug-food homologous small molecules, which can serve as a promising wound-healing dressing for biomedical applications.
Collapse
Affiliation(s)
- Qing Li
- Laboratory of Food Proteins and Colloids, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China
| | - Shiqi Zhang
- Laboratory of Food Proteins and Colloids, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China
| | - Ruijie Du
- Laboratory of Food Proteins and Colloids, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China
| | - Yunyi Yang
- Laboratory of Food Proteins and Colloids, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China
| | - Yang Liu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Zhili Wan
- Laboratory of Food Proteins and Colloids, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China
- Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center), Guangzhou 510640, China
| | - Xiaoquan Yang
- Laboratory of Food Proteins and Colloids, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China
| |
Collapse
|
2
|
Langer D, Wicher B, Bendzinska-Berus W, Bednarczyk-Cwynar B, Tykarska E. Insights into isostructural and non-isostructural crystals of esters of oleanolic acid and its 11-oxo derivatives. ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2022; 78:606-617. [PMID: 35975827 DOI: 10.1107/s2052520622005972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Accepted: 06/03/2022] [Indexed: 06/15/2023]
Abstract
Synthesis and structural characterization of new esters of oleanolic acid and its 11-oxo derivatives are reported. Compounds crystallize in four isostructural groups, each containing one to four structures. Single-crystal X-ray analysis revealed that molecules belonging to non-isostructural groups self-associate according to two schemes that describe also supramolecular architectures in crystals of glycyrrhetinic acid derivatives. Structural motifs arise as a result of van der Waals forces. Parameters introduced for the analysis of one- and two-dimensional assemblies allow the comparison of motifs in isostructural and non-isostructural crystals, including polymorphs, and a qualitative assessment of differences in molecular self-assembly. One-, two- or three-dimensional similarity has been confirmed by XPac calculations.
Collapse
Affiliation(s)
- Dominik Langer
- Department of Chemical Technology of Drugs, Poznan University of Medical Sciences, Grunwladzka 6, Poznan, 60-780, Poland
| | - Barbara Wicher
- Department of Chemical Technology of Drugs, Poznan University of Medical Sciences, Grunwladzka 6, Poznan, 60-780, Poland
| | - Wioletta Bendzinska-Berus
- Department of Chemical Technology of Drugs, Poznan University of Medical Sciences, Grunwladzka 6, Poznan, 60-780, Poland
| | - Barbara Bednarczyk-Cwynar
- Department of Organic Chemistry, Poznan University of Medical Sciences, Grunwladzka 6, Poznan, 60-780, Poland
| | - Ewa Tykarska
- Department of Chemical Technology of Drugs, Poznan University of Medical Sciences, Grunwladzka 6, Poznan, 60-780, Poland
| |
Collapse
|
3
|
Langer D, Wicher B, Tykarska E. Single-crystal-to-single-crystal phase transition of 18β-glycyrrhetinic acid isopropyl ester. ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2022; 78:450-458. [PMID: 35702962 DOI: 10.1107/s2052520622002517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 03/04/2022] [Indexed: 06/15/2023]
Abstract
Due to the destruction of the integrity of the parent crystal, single-crystal-to-single-crystal phase transition in organic compounds is still a relatively rare phenomenon. The phase transition in glycyrrhetinic acid isopropyl ester is triggered by temperature change. The increasing volume of the isopropyl substituent as a result of increasing temperature forces a remodelling of the structural motifs. These changes cause a single-crystal-to-single-crystal phase transition. The low-temperature form is isostructural with glycyrrhetinic acid methanol solvate, while the high-temperature phase is isostructural with the ethyl ester of this acid.
Collapse
Affiliation(s)
- Dominik Langer
- Department of Chemical Technology of Drugs, Poznan University of Medical Sciences, Grunwladzka 6, Poznan 60-780, Poland
| | - Barbara Wicher
- Department of Chemical Technology of Drugs, Poznan University of Medical Sciences, Grunwladzka 6, Poznan 60-780, Poland
| | - Ewa Tykarska
- Department of Chemical Technology of Drugs, Poznan University of Medical Sciences, Grunwladzka 6, Poznan 60-780, Poland
| |
Collapse
|
5
|
Langer D, Wicher B, Szczołko W, Gdaniec M, Tykarska E. Self-assembly modes of glycyrrhetinic acid esters in view of the crystal packing of related triterpene molecules. ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2016; 72:584-92. [PMID: 27484379 DOI: 10.1107/s2052520616008180] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Accepted: 05/19/2016] [Indexed: 11/10/2022]
Abstract
The crystal structures of three ester derivatives of glycyrrhetinic acid (GE) are reported. X-ray crystallography revealed that despite differences in the size of the ester substituents (ethyl, isopropyl and 2-morpholinoethyl) the scheme of molecular self-assembly is similar in all three cases but differs significantly from that observed in other known GE esters. According to our analysis, the two basic patterns of self-assembly of GE esters observed in their unsolvated crystals correspond to two distinct orientations of the ester groups relative to the triterpene backbone. Moreover, comparison of the self-assembly modes of GE esters in their unsolvated forms with the supramolecular organization of GE and carbenoxolone in their solvated crystals revealed that ester substituents replace solvent molecules hydrogen bonded to the COOH group at the triterpene skeleton, resulting in similar packing arrangements of these compounds.
Collapse
Affiliation(s)
- Dominik Langer
- Department of Chemical Technology of Drugs, Poznań Uniwersity of Medical Sciences, Grunwaldzka 6, Poznań 60-780, Poland
| | - Barbara Wicher
- Department of Chemical Technology of Drugs, Poznań Uniwersity of Medical Sciences, Grunwaldzka 6, Poznań 60-780, Poland
| | - Wojciech Szczołko
- Department of Chemical Technology of Drugs, Poznań Uniwersity of Medical Sciences, Grunwaldzka 6, Poznań 60-780, Poland
| | - Maria Gdaniec
- Faculty of Chemistry, A. Mickiewicz University, Umultowska 89b, Poznań 61-614, Poland
| | - Ewa Tykarska
- Department of Chemical Technology of Drugs, Poznań Uniwersity of Medical Sciences, Grunwaldzka 6, Poznań 60-780, Poland
| |
Collapse
|