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Berry CE, Le T, An N, Griffin M, Januszyk M, Kendig CB, Fazilat AZ, Churukian AA, Pan PM, Wan DC. Pharmacological and cell-based treatments to increase local skin flap viability in animal models. J Transl Med 2024; 22:68. [PMID: 38233920 PMCID: PMC10792878 DOI: 10.1186/s12967-024-04882-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 01/10/2024] [Indexed: 01/19/2024] Open
Abstract
Local skin flaps are frequently employed for wound closure to address surgical, traumatic, congenital, or oncologic defects. (1) Despite their clinical utility, skin flaps may fail due to inadequate perfusion, ischemia/reperfusion injury (IRI), excessive cell death, and associated inflammatory response. (2) All of these factors contribute to skin flap necrosis in 10-15% of cases and represent a significant surgical challenge. (3, 4) Once flap necrosis occurs, it may require additional surgeries to remove the entire flap or repair the damage and secondary treatments for infection and disfiguration, which can be costly and painful. (5) In addition to employing appropriate surgical techniques and identifying healthy, well-vascularized tissue to mitigate the occurrence of these complications, there is growing interest in exploring cell-based and pharmacologic augmentation options. (6) These agents typically focus on preventing thrombosis and increasing vasodilation and angiogenesis while reducing inflammation and oxidative stress. Agents that modulate cell death pathways such as apoptosis and autophagy have also been investigated. (7) Implementation of drugs and cell lines with potentially beneficial properties have been proposed through various delivery techniques including systemic treatment, direct wound bed or flap injection, and topical application. This review summarizes pharmacologic- and cell-based interventions to augment skin flap viability in animal models, and discusses both translatability challenges facing these therapies and future directions in the field of skin flap augmentation.
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Affiliation(s)
- Charlotte E Berry
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, 257 Campus Drive West, Stanford, CA, 94305, USA
| | - Thalia Le
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, 257 Campus Drive West, Stanford, CA, 94305, USA
| | - Nicholas An
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, 257 Campus Drive West, Stanford, CA, 94305, USA
| | - Michelle Griffin
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, 257 Campus Drive West, Stanford, CA, 94305, USA
| | - Micheal Januszyk
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, 257 Campus Drive West, Stanford, CA, 94305, USA
| | - Carter B Kendig
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, 257 Campus Drive West, Stanford, CA, 94305, USA
| | - Alexander Z Fazilat
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, 257 Campus Drive West, Stanford, CA, 94305, USA
| | - Andrew A Churukian
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, 257 Campus Drive West, Stanford, CA, 94305, USA
| | - Phoebe M Pan
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, 257 Campus Drive West, Stanford, CA, 94305, USA
| | - Derrick C Wan
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, 257 Campus Drive West, Stanford, CA, 94305, USA.
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Li D, Song Y, Wang Y, Guo Y, Zhang Z, Yang G, Wang G, Xu C. Nos2 deficiency enhances carbon tetrachloride-induced liver injury in aged mice. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2020; 23:600-605. [PMID: 32742597 PMCID: PMC7374991 DOI: 10.22038/ijbms.2020.39528.9380] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Objective(s): As a multifunctional molecule, NO has different effects on liver injury. The present work aimed to investigate the effects of Nos2 knockout (KO) on acute liver injury in aged mice treated with carbon tetrachloride (CCl4). Materials and Methods: The acute liver injury model was produced by CCl4 at 10 ml/kg body weight in 24-month-old Nos2 KO mice and wild type (WT) mice groups. The histological changes, transaminase and glutathione (GSH) contents, and the expressions of liver function genes superoxide dismutase (SOD2) and butyrylcholinesterase (BCHE), as well as apoptosis- and inflammation-associated genes were detected at 0, 6, 16, 20, 28, and 48 hr, respectively. Results: Compared with WT aged mice, there are more fat droplets in liver tissues of Nos2 KO aged mice, and the serum levels of ALT and AST were elevated in the KO group; in addition, there was a decrease in the expression of SOD2 and BCHE and GSH content at multiple time-points. Furthermore, the expression of apoptosis protein CASPASE-3 was elevated from 20 to 48 hr, the same as CASPASE-9 at 28 and 48 hr and pro-apoptotic protein BAX at 6 and 28 hr, while the expression of apoptosis inhibitory protein BCL2 declined at 6 and 28 hr; at the same time the mRNA expressions of genes related to inflammation were increased at different extents in liver extracts of Nos2 KO aged mice. Conclusion: Nos2 KO exacerbated liver injury probably by elevated oxidative stress, apoptosis and inflammation response in CCl4-induced aged mice liver intoxication model.
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Affiliation(s)
- Deming Li
- State Key Laboratory Cell Differentiation and Regulation, Xinxiang, Henan, China.,Henan International Joint Laboratory of Pulmonary Fibrosis.,Henan center for outstanding overseas scientists of pulmonary fibrosis, Xinxiang, Henan, China.,College of Life Science, Xinxiang, Henan, China.,Institute of Biomedical Science, Xinxiang, Henan, China.,Overseas Expertise Introduction Center for Discipline Innovation of Pulmonary Fibrosis (111 Project), Henan Normal University, Xinxiang, Henan, China
| | - Yaping Song
- State Key Laboratory Cell Differentiation and Regulation, Xinxiang, Henan, China.,Henan International Joint Laboratory of Pulmonary Fibrosis.,Henan center for outstanding overseas scientists of pulmonary fibrosis, Xinxiang, Henan, China.,College of Life Science, Xinxiang, Henan, China.,Institute of Biomedical Science, Xinxiang, Henan, China.,Overseas Expertise Introduction Center for Discipline Innovation of Pulmonary Fibrosis (111 Project), Henan Normal University, Xinxiang, Henan, China
| | - Yahao Wang
- State Key Laboratory Cell Differentiation and Regulation, Xinxiang, Henan, China.,Henan International Joint Laboratory of Pulmonary Fibrosis.,Henan center for outstanding overseas scientists of pulmonary fibrosis, Xinxiang, Henan, China.,College of Life Science, Xinxiang, Henan, China.,Institute of Biomedical Science, Xinxiang, Henan, China.,Overseas Expertise Introduction Center for Discipline Innovation of Pulmonary Fibrosis (111 Project), Henan Normal University, Xinxiang, Henan, China
| | - Yuedong Guo
- State Key Laboratory Cell Differentiation and Regulation, Xinxiang, Henan, China.,Henan International Joint Laboratory of Pulmonary Fibrosis.,Henan center for outstanding overseas scientists of pulmonary fibrosis, Xinxiang, Henan, China.,College of Life Science, Xinxiang, Henan, China.,Institute of Biomedical Science, Xinxiang, Henan, China.,Overseas Expertise Introduction Center for Discipline Innovation of Pulmonary Fibrosis (111 Project), Henan Normal University, Xinxiang, Henan, China
| | - Zhaoke Zhang
- State Key Laboratory Cell Differentiation and Regulation, Xinxiang, Henan, China.,Henan International Joint Laboratory of Pulmonary Fibrosis.,Henan center for outstanding overseas scientists of pulmonary fibrosis, Xinxiang, Henan, China.,College of Life Science, Xinxiang, Henan, China.,Institute of Biomedical Science, Xinxiang, Henan, China.,Overseas Expertise Introduction Center for Discipline Innovation of Pulmonary Fibrosis (111 Project), Henan Normal University, Xinxiang, Henan, China
| | - Ganggang Yang
- State Key Laboratory Cell Differentiation and Regulation, Xinxiang, Henan, China.,Henan International Joint Laboratory of Pulmonary Fibrosis.,Henan center for outstanding overseas scientists of pulmonary fibrosis, Xinxiang, Henan, China.,College of Life Science, Xinxiang, Henan, China.,Institute of Biomedical Science, Xinxiang, Henan, China.,Overseas Expertise Introduction Center for Discipline Innovation of Pulmonary Fibrosis (111 Project), Henan Normal University, Xinxiang, Henan, China
| | - Gaiping Wang
- State Key Laboratory Cell Differentiation and Regulation, Xinxiang, Henan, China.,Henan International Joint Laboratory of Pulmonary Fibrosis.,Henan center for outstanding overseas scientists of pulmonary fibrosis, Xinxiang, Henan, China.,College of Life Science, Xinxiang, Henan, China.,Institute of Biomedical Science, Xinxiang, Henan, China.,Overseas Expertise Introduction Center for Discipline Innovation of Pulmonary Fibrosis (111 Project), Henan Normal University, Xinxiang, Henan, China
| | - Cunshuan Xu
- State Key Laboratory Cell Differentiation and Regulation, Xinxiang, Henan, China.,Henan International Joint Laboratory of Pulmonary Fibrosis.,Henan center for outstanding overseas scientists of pulmonary fibrosis, Xinxiang, Henan, China.,College of Life Science, Xinxiang, Henan, China.,Institute of Biomedical Science, Xinxiang, Henan, China.,Overseas Expertise Introduction Center for Discipline Innovation of Pulmonary Fibrosis (111 Project), Henan Normal University, Xinxiang, Henan, China
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