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Zhang G, Zhang Z, Cao G, Jin Q, Xu L, Li J, Liu Z, Xu C, Le Y, Fu Y, Ju J, Li B, Hou R. Engineered dermis loaded with confining forces promotes full-thickness wound healing by enhancing vascularisation and epithelialisation. Acta Biomater 2023; 170:464-478. [PMID: 37657662 DOI: 10.1016/j.actbio.2023.08.049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 08/23/2023] [Accepted: 08/24/2023] [Indexed: 09/03/2023]
Abstract
Tissue-engineered skin is ideal for clinical wound repair. Restoration of skin tissue defects using tissue-engineered skin remains a challenge owing to insufficient vascularisation. In our previous study, we developed a 3D bioprinted model with confined force loading and demonstrated that the confined force can affect vascular branching, which is regulated by the YAP signalling pathway. The mechanical properties of the model must be optimised to suture the wound edges. In this study, we explored the ability of a GelMA-HAMA-fibrin scaffold to support the confined forces created by 3D bioprinting and promote vascularisation and wound healing. The shape of the GelMA-HAMA-fibrin scaffold containing 3% GelMA was affected by the confined forces produced by the embedded cells. The GelMA-HAMA-fibrin scaffold was easy to print, had optimal mechanical properties, and was biocompatible. The constructs were successfully sutured together after 14 d of culture. Scaffolds seeded with cells were transplanted into skin tissue defects in nude mice, demonstrating that the cell-seeded GelMA-HAMA-fibrin scaffold, under confined force loading, promoted neovascularisation and wound restoration by enhancing blood vessel connections, creating a patterned surface, growth factors, and collagen deposition. These results provide further insights into the production of hydrogel composite materials as tissue-engineered scaffolds under an internal mechanical load that can enhance vascularisation and offer new treatment methods for wound healing. STATEMENT OF SIGNIFICANCE: Tissue-engineered skin is ideal for use in clinical wound repair. However, treatment of tissue defects using synthetic scaffolds remains challenging, mainly due to slow and insufficient vascularization. Our previous study developed a 3D bioprinted model with confined force loading, and demonstrated that confined force can affect vascular branching regulated by the YAP signal pathway. The mechanical properties of the construct need to be optimized for suturing to the edges of wounds. Here, we investigated the ability of a GelMA-HAMA-fibrin scaffold to support the confined forces created by 3D bioprinting and promote vascularization in vitro and wound healing in vivo. Our findings provide new insight into the development of degradable macroporous composite materials with mechanical stimulation as tissue-engineered scaffolds with enhanced vascularization, and also provide new treatment options for wound healing.
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Affiliation(s)
- Guangliang Zhang
- Department of Orthopaedics, Suzhou Ruihua Orthopaedic Hospital, Suzhou Medical College, Soochow University, 5 Tayun Road, Suzhou, Jiangsu 215104, China.
| | - Zhiqiang Zhang
- Department of Orthopaedics, Suzhou Ruihua Orthopaedic Hospital, Suzhou Medical College, Soochow University, 5 Tayun Road, Suzhou, Jiangsu 215104, China; Department of Orthopedic Surgery, Medical 3D Printing Center, Orthopedic Institute, The First Affiliated Hospital, School of Biology and Basic Medical Sciences, Suzhou Medicine College of Soochow University, Soochow University, 199 Renai Road, Suzhou, Jiangsu 215000, China
| | - Gaobiao Cao
- Department of Orthopaedics, Suzhou Ruihua Orthopaedic Hospital, Suzhou Medical College, Soochow University, 5 Tayun Road, Suzhou, Jiangsu 215104, China
| | - Qianheng Jin
- Department of Orthopaedics, Suzhou Ruihua Orthopaedic Hospital, Suzhou Medical College, Soochow University, 5 Tayun Road, Suzhou, Jiangsu 215104, China; Department of Orthopedic Surgery, Medical 3D Printing Center, Orthopedic Institute, The First Affiliated Hospital, School of Biology and Basic Medical Sciences, Suzhou Medicine College of Soochow University, Soochow University, 199 Renai Road, Suzhou, Jiangsu 215000, China
| | - Lei Xu
- Department of Orthopaedics, Suzhou Ruihua Orthopaedic Hospital, Suzhou Medical College, Soochow University, 5 Tayun Road, Suzhou, Jiangsu 215104, China; Department of Orthopedic Surgery, Medical 3D Printing Center, Orthopedic Institute, The First Affiliated Hospital, School of Biology and Basic Medical Sciences, Suzhou Medicine College of Soochow University, Soochow University, 199 Renai Road, Suzhou, Jiangsu 215000, China
| | - Jiaying Li
- Department of Orthopedic Surgery, Medical 3D Printing Center, Orthopedic Institute, The First Affiliated Hospital, School of Biology and Basic Medical Sciences, Suzhou Medicine College of Soochow University, Soochow University, 199 Renai Road, Suzhou, Jiangsu 215000, China
| | - Zhe Liu
- Department of Orthopaedics, Suzhou Ruihua Orthopaedic Hospital, Suzhou Medical College, Soochow University, 5 Tayun Road, Suzhou, Jiangsu 215104, China; Department of Orthopedic Surgery, Medical 3D Printing Center, Orthopedic Institute, The First Affiliated Hospital, School of Biology and Basic Medical Sciences, Suzhou Medicine College of Soochow University, Soochow University, 199 Renai Road, Suzhou, Jiangsu 215000, China
| | - Chi Xu
- Department of Orthopaedics, Suzhou Ruihua Orthopaedic Hospital, Suzhou Medical College, Soochow University, 5 Tayun Road, Suzhou, Jiangsu 215104, China; Department of Orthopedic Surgery, Medical 3D Printing Center, Orthopedic Institute, The First Affiliated Hospital, School of Biology and Basic Medical Sciences, Suzhou Medicine College of Soochow University, Soochow University, 199 Renai Road, Suzhou, Jiangsu 215000, China
| | - Yingying Le
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Yi Fu
- Department of Human Anatomy, Histology and Embryology, School of Biology and Basic Medical Sciences, Soochow University, 199 Renai Road, Suzhou, Jiangsu 215000, China
| | - Jihui Ju
- Department of Orthopaedics, Suzhou Ruihua Orthopaedic Hospital, Suzhou Medical College, Soochow University, 5 Tayun Road, Suzhou, Jiangsu 215104, China; Department of Orthopedic Surgery, Medical 3D Printing Center, Orthopedic Institute, The First Affiliated Hospital, School of Biology and Basic Medical Sciences, Suzhou Medicine College of Soochow University, Soochow University, 199 Renai Road, Suzhou, Jiangsu 215000, China; Teaching Hospital of Medical College of Yangzhou University, Yangzhou, Jiangsu 225009, China.
| | - Bin Li
- Department of Orthopedic Surgery, Medical 3D Printing Center, Orthopedic Institute, The First Affiliated Hospital, School of Biology and Basic Medical Sciences, Suzhou Medicine College of Soochow University, Soochow University, 199 Renai Road, Suzhou, Jiangsu 215000, China.
| | - Ruixing Hou
- Department of Orthopaedics, Suzhou Ruihua Orthopaedic Hospital, Suzhou Medical College, Soochow University, 5 Tayun Road, Suzhou, Jiangsu 215104, China; Department of Orthopedic Surgery, Medical 3D Printing Center, Orthopedic Institute, The First Affiliated Hospital, School of Biology and Basic Medical Sciences, Suzhou Medicine College of Soochow University, Soochow University, 199 Renai Road, Suzhou, Jiangsu 215000, China; Teaching Hospital of Medical College of Yangzhou University, Yangzhou, Jiangsu 225009, China.
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Chen Y, Koike Y, Chi L, Ahmed A, Miyake H, Li B, Lee C, Delgado-Olguín P, Pierro A. Formula feeding and immature gut microcirculation promote intestinal hypoxia, leading to necrotizing enterocolitis. Dis Model Mech 2019; 12:dmm.040998. [PMID: 31704804 PMCID: PMC6918740 DOI: 10.1242/dmm.040998] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Accepted: 10/28/2019] [Indexed: 01/09/2023] Open
Abstract
Major risk factors for necrotizing enterocolitis (NEC) are formula feeding and prematurity; however, their pathogenic mechanisms are unknown. Here, we found that insufficient arginine/nitric oxide synthesis limits blood flow in the intestinal microvasculature, leading to hypoxia, mucosal damage and NEC in the premature intestine after formula feeding. Formula feeding led to increased intestinal hypoxia in pups at postnatal day (P)1 and P5, but not in more mature pups at P9. Accordingly, blood flow in the intestinal microvasculature increased after formula feeding in P9 pups only. mRNA profiling revealed that regulators of arginine/nitric oxide synthesis are at higher levels in endothelial cells of the intestine in P9 than in P1 pups. Importantly, arginine supplementation increased intestinal microvasculature blood flow and prevented NEC, whereas an arginine antagonist exacerbated NEC. Our results suggest that balancing intestinal oxygen demand and supply in the premature intestine by modulating arginine/nitric oxide could be used to prevent NEC.This article has an associated First Person interview with the first author of the paper.
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Affiliation(s)
- Yong Chen
- Translational Medicine, The Hospital for Sick Children, Toronto, ON M5G0A4, Canada.,Division of General and Thoracic Surgery, The Hospital for Sick Children, Toronto, ON M5G1X8, Canada.,Department of Pediatric Surgery, KK Women's and Children's Hospital, 100 Bukit Timah Road, 229899 Singapore
| | - Yuhki Koike
- Translational Medicine, The Hospital for Sick Children, Toronto, ON M5G0A4, Canada.,Division of General and Thoracic Surgery, The Hospital for Sick Children, Toronto, ON M5G1X8, Canada
| | - Lijun Chi
- Translational Medicine, The Hospital for Sick Children, Toronto, ON M5G0A4, Canada.,Department of Molecular Genetics, University of Toronto, Toronto, ON M5S1A8, Canada
| | - Abdalla Ahmed
- Translational Medicine, The Hospital for Sick Children, Toronto, ON M5G0A4, Canada.,Department of Molecular Genetics, University of Toronto, Toronto, ON M5S1A8, Canada
| | - Hiromu Miyake
- Translational Medicine, The Hospital for Sick Children, Toronto, ON M5G0A4, Canada.,Division of General and Thoracic Surgery, The Hospital for Sick Children, Toronto, ON M5G1X8, Canada
| | - Bo Li
- Translational Medicine, The Hospital for Sick Children, Toronto, ON M5G0A4, Canada
| | - Carol Lee
- Translational Medicine, The Hospital for Sick Children, Toronto, ON M5G0A4, Canada
| | - Paul Delgado-Olguín
- Translational Medicine, The Hospital for Sick Children, Toronto, ON M5G0A4, Canada .,Department of Molecular Genetics, University of Toronto, Toronto, ON M5S1A8, Canada.,Heart and Stroke Richard Lewar Centre of Excellence in Cardiovascular Research, Toronto, ON M5S3H2, Canada
| | - Agostino Pierro
- Translational Medicine, The Hospital for Sick Children, Toronto, ON M5G0A4, Canada .,Division of General and Thoracic Surgery, The Hospital for Sick Children, Toronto, ON M5G1X8, Canada
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Padget RL, Mohite SS, Hoog TG, Justis BS, Green BE, Udan RS. Hemodynamic force is required for vascular smooth muscle cell recruitment to blood vessels during mouse embryonic development. Mech Dev 2019; 156:8-19. [PMID: 30796970 DOI: 10.1016/j.mod.2019.02.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 01/16/2019] [Accepted: 02/16/2019] [Indexed: 12/13/2022]
Abstract
Blood vessel maturation, which is characterized by the investment of vascular smooth muscle cells (vSMCs) around developing blood vessels, begins when vessels remodel into a hierarchy of proximal arteries and proximal veins that branch into smaller distal capillaries. The ultimate result of maturation is formation of the tunica media-the middlemost layer of a vessel that is composed of vSMCs and acts to control vessel integrity and vascular tone. Though many studies have implicated the role of various signaling molecules in regulating maturation, no studies have determined a role for hemodynamic force in the regulation of maturation in the mouse. In the current study, we provide evidence that a hemodynamic force-dependent mechanism occurs in the mouse because reduced blood flow mouse embryos exhibited a diminished or absent coverage of vSMCs around vessels, and in normal-flow embryos, extent of coverage correlated to the amount of blood flow that vessels were exposed to. We also determine that the cellular mechanism of force-induced maturation was not by promoting vSMC differentiation/proliferation, but instead involved the recruitment of vSMCs away from neighboring low-flow distal capillaries towards high-flow vessels. Finally, we hypothesize that hemodynamic force may regulate expression of specific signaling molecules to control vSMC recruitment to high-flow vessels, as reduction of flow results in the misexpression of Semaphorin 3A, 3F, 3G, and the Notch target gene Hey1, all of which are implicated in controlling vessel maturation. This study reveals another role for hemodynamic force in regulating blood vessel development of the mouse, and opens up a new model to begin elucidating mechanotransduction pathways regulating vascular maturation.
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Affiliation(s)
- Rachel L Padget
- Department of Biology, Missouri State University, United States of America
| | - Shilpa S Mohite
- Department of Biology, Missouri State University, United States of America
| | - Tanner G Hoog
- Department of Biology, Missouri State University, United States of America
| | - Blake S Justis
- Department of Biology, Missouri State University, United States of America
| | - Bruce E Green
- Department of Biology, Missouri State University, United States of America
| | - Ryan S Udan
- Department of Biology, Missouri State University, United States of America.
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Tao YK, Zeng H, Zhang GQ, Chen ST, Xie XJ, He X, Wang S, Wen H, Chen JX. Notch3 deficiency impairs coronary micro vascular maturation and reduces cardiac recovery after myocardial ischemia. Int J Cardiol 2017; 236:413-422. [PMID: 28131704 DOI: 10.1016/j.ijcard.2017.01.096] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Accepted: 01/13/2017] [Indexed: 12/29/2022]
Abstract
RATIONALE Vascular maturation plays an important role in wound repair post-myocardial infarction (MI). The Notch3 is critical for pericyte recruitment and vascular maturation during embryonic development. OBJECTIVE This study is to test whether Notch3 deficiency impairs vascular maturation and blunts cardiac functional recovery post-MI. APPROACH AND RESULTS Wild type (WT) and Notch3 knockout (Notch3KO) mice were subjected to MI by the ligation of left anterior descending coronary artery (LAD). Cardiac function and coronary blood flow reserve (CFR) were measured by echocardiography. The expression of angiogenic growth factor, pericyte/capillary coverage and arteriolar formation were analyzed. Loss of Notch3 in mice resulted in a significant reduction of pericytes and small arterioles. Notch3 KO mice had impaired pericyte/capillary coverage and CFR compared to WT mice. Notch3 KO mice were more prone to ischemic injury with larger infarcted size and higher rates of mortality. The expression of CXCR-4 and VEGF/Ang-1 was significantly decreased in Notch3 KO mice. Notch3 KO mice also had few NG2+/Sca1+ and NG2+/c-kit+ progenitor cells in the ischemic area and exhibited worse cardiac function recovery at 2weeks after MI. These were accompanied by a significant reduction of pericyte/capillary coverage and arteriolar maturation. Furthermore, Notch3 KO mice subjected to MI had increased intracellular adhesion molecule-2 (ICAM-2) expression and CD11b+ macrophage infiltration into ischemic areas compared to that of WT mice. CONCLUSION Notch3 mutation impairs recovery of cardiac function post-MI by the mechanisms involving the pre-existing coronary microvascular dysfunction conditions, and impairment of pericyte/progenitor cell recruitment and microvascular maturation.
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Affiliation(s)
- Yong-Kang Tao
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, MS 39216, USA; Emergency Department of China-Japan Friendship Hospital, Beijing 100029, China
| | - Heng Zeng
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, MS 39216, USA
| | - Guo-Qiang Zhang
- Emergency Department of China-Japan Friendship Hospital, Beijing 100029, China.
| | - Sean T Chen
- Duke University School of Medicine, Durham, USA
| | - Xue-Jiao Xie
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, MS 39216, USA; Hunan University of Chinese Medicine, Changsha, Hunan 410208, China
| | - Xiaochen He
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, MS 39216, USA
| | - Shuo Wang
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, MS 39216, USA
| | - Hongyan Wen
- Hunan University of Chinese Medicine, Changsha, Hunan 410208, China
| | - Jian-Xiong Chen
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, MS 39216, USA; Hunan University of Chinese Medicine, Changsha, Hunan 410208, China.
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