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Yang H, Song L, Sun B, Chu D, Yang L, Li M, Li H, Dai Y, Yu Z, Guo J. Modulation of macrophages by a paeoniflorin-loaded hyaluronic acid-based hydrogel promotes diabetic wound healing. Mater Today Bio 2021; 12:100139. [PMID: 34632363 PMCID: PMC8488309 DOI: 10.1016/j.mtbio.2021.100139] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 08/28/2021] [Accepted: 09/05/2021] [Indexed: 02/05/2023] Open
Abstract
The impaired wound healing in diabetes is a central concern of healthcare worldwide. However, current treatments often fail due to the complexity of diabetic wounds, and thus, emerging therapeutic approaches are needed. Macrophages, a prominent immune cell in the wound, play key roles in tissue repair and regeneration. Recent evidence has demonstrated that macrophages in diabetic wounds maintain a persistent proinflammatory phenotype that causes the failure of healing. Therefore, modulation of macrophages provides great promise for wound healing in diabetic patients. In this study, the potential of paeoniflorin (PF, a chemical compound derived from the herb Paeonia lactiflora) for the transition of macrophages from M1 (proinflammatory phenotype) to M2 (anti-inflammatory/prohealing phenotype) was confirmed using ex vivo and in vivo experimental approaches. A hydrogel based on high molecular weight hyaluronic acid (HA) was developed for local administration of PF in experimental diabetic mice with a full-thickness wound. The resultant formulation (HA-PF) was able to significantly promote cutaneous healing as compared to INTRASITE Gel (a commercial hydrogel wound dressing). This outcome was accompanied by the amelioration of inflammation, the improvement of angiogenesis, and re-epithelialization, and the deposition of collagen. Our study indicates the significant potential of HA-PF for clinical translation in diabetic wound healing.
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Key Words
- Adipic acid dihydrazide, ADH
- Angiogenesis
- Anti-inflammation
- Hydrogel
- Macrophage polarization
- N-(3-Dimethylaminopropyl)-N′-ethylcarbodiimide hydrochloride, EDC.HCl
- Regenerative medicine
- arginase 1, Arg-1
- bone marrow-derived macrophages, BMDMs
- dimethyl sulfoxide, DMSO
- fetal bovine serum, FBS
- human umbilical vein endothelial cells, HUVECs
- hyaluronic acid, HA
- inducible nitric oxide synthase, iNOS
- integrated optical density, IOD
- interferon-γ, IFN-γ
- interleukin-10, IL-10
- interleukin-1β, IL-1β
- lipopolysaccharide, LPS
- macrophage colony-stimulating factor, M-CSF
- paeoniflorin, PF
- penicillin-streptomycin, P/S
- phosphate-buffered saline, PBS
- polyvinylidene difluoride, PVDF
- scanning electron microscopy, SEM
- signal transducer and activator of transcription, STAT
- streptozocin, STZ
- swelling ratio, SR
- transforming growth factor-β, TGF-β
- tumor necrosis factor-α, TNF-α
- α-smooth muscle actin, α-SMA
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Affiliation(s)
- Hao Yang
- School of Pharmaceutical Sciences, Jilin University, Changchun, 130021, China
| | - Liu Song
- School of Pharmaceutical Sciences, Jilin University, Changchun, 130021, China
| | - Bingxue Sun
- School of Pharmaceutical Sciences, Jilin University, Changchun, 130021, China
| | - Di Chu
- School of Pharmaceutical Sciences, Jilin University, Changchun, 130021, China
| | - Leilei Yang
- School of Pharmaceutical Sciences, Jilin University, Changchun, 130021, China
| | - Meng Li
- School of Pharmaceutical Sciences, Jilin University, Changchun, 130021, China
| | - Huan Li
- School of Pharmaceutical Sciences, Jilin University, Changchun, 130021, China
| | - Yun Dai
- Laboratory of Cancer Precision Medicine, The First Hospital of Jilin University, Changchun, 130021, China
| | - Zhuo Yu
- Department of Hepatopathy, Shuguang Hospital, Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Jianfeng Guo
- School of Pharmaceutical Sciences, Jilin University, Changchun, 130021, China
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