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Soheilifar MH, Masoudi-Khoram N, Hassani M, Hajialiasgary Najafabadi A, Khojasteh M, Keshmiri Neghab H, Jalili Z. Angio-microRNAs in diabetic foot ulcer-: Mechanistic insights and clinical perspectives. PROGRESS IN BIOPHYSICS AND MOLECULAR BIOLOGY 2024; 192:1-10. [PMID: 39069213 DOI: 10.1016/j.pbiomolbio.2024.07.006] [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: 11/25/2023] [Revised: 07/13/2024] [Accepted: 07/26/2024] [Indexed: 07/30/2024]
Abstract
Diabetic foot ulcers, as one of the chronic wounds, are a serious challenge in the global healthcare system which have shown notable growth in recent years. DFU is associated with impairment in various stages of wound healing, including angiogenesis. Aberrant expression of microRNAs (miRNAs) involved in the disruption of the balance between angiogenic and anti-angiogenic factors, plays a crucial role in angiogenesis dysfunction. Alteration in the expression of angiomiRNAs (angiomiRs) have the potential to function as biomarkers in chronic wounds. Additionally, considering the rising importance of therapeutic RNAs, there is potential for utilizing angiomiRs in wound healing to induce angiogenesis. This review aims to explore angiogenesis in chronic wounds and investigate the mechanisms mediated by pro- and anti-angiomiRs in the context of diabetic foot ulcers.
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Affiliation(s)
| | - Nastaran Masoudi-Khoram
- Endocrine Research Center, Institute of Endocrinology and Metabolism, Iran University of Medical Sciences, Tehran, Iran
| | - Mahmoud Hassani
- Medical Nanotechnology and Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Amirhossein Hajialiasgary Najafabadi
- Department of Quantitative and Computational Biology, Max Planck Institute for Multidisciplinary Sciences, Goettingen, 37077, Germany; Research Group Translational Epigenetics, Department of Pathology, University of Goettingen, Goettingen, 37075, Germany
| | - Mahdieh Khojasteh
- Heart Center of Goettingen, University Medicine Goettingen, Goettingen, Germany
| | - Hoda Keshmiri Neghab
- Department of Medical Laser, Medical Laser Research Center, Yara Institute, ACECR, Tehran, Iran
| | - Zahra Jalili
- Department of Medical Laser, Medical Laser Research Center, Yara Institute, ACECR, Tehran, Iran
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Peddibhotla S, Caples K, Mehta A, Chen QY, Hu J, Idlett-Ali S, Zhang L, Zgheib C, Xu J, Liechty KW, Malany S. Triazolothiadiazine derivative positively modulates CXCR4 signaling and improves diabetic wound healing. Biochem Pharmacol 2023; 216:115764. [PMID: 37634595 PMCID: PMC11115308 DOI: 10.1016/j.bcp.2023.115764] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Revised: 08/17/2023] [Accepted: 08/21/2023] [Indexed: 08/29/2023]
Abstract
Development of specific therapies that target and accelerate diabetic wound repair is an urgent need to alleviate pain and suffering and the huge socioeconomic burden of this debilitating disease. C-X-C Motif Chemokine Ligand 12 (CXCL12) also know an stromal cell-derived factor 1α (SDF-1α) is a chemokine that binds the CXC chemokine receptor type 4 (CXCR4) and activates downstream signaling resulting in recruitment of hematopoietic cells to locations of tissue injury and promotes tissue repair. In diabetes, low expression of CXCL12 correlates with impaired wound healing. Activation of CXCR4 receptor signaling with agonists or positive allosteric modulators (PAMs) provides a potential for small molecule therapeutic discovery and development. We recently reported high throughput screening and identification of the CXCR4 partial agonist UCUF-728, characterization of in vitro activity and reduced wound closure time in diabetic mice at 100 μM as a proof-of-concept study. We report here, the discovery of a second chemical scaffold demonstrating increased agonist potency and represented by thiadiazine derivative, UCUF-965. UCUF-965 is a potent partial agonist of β-arrestin recruitment in CXCR4 receptor overexpressing cell line. Furthermore, UCUF-965 potentiates the CXCL12 maximal response in cAMP signaling pathway, activates CXCL12 stimulated migration in lymphoblast cells and modulates the levels of specific microRNA involved in the complex wound repair process, specifically in mouse fibroblasts. Our results indicate that UCUF-965 acts as a PAM agonist of the CXCR4 receptor. Furthermore, UCUF-965 enhanced angiogenesis markers and reduced wound healing time by 36% at 10.0 μM in diabetic mice models compared to untreated control.
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Affiliation(s)
| | - Karly Caples
- Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, FL 32610, USA
| | - Alka Mehta
- Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, FL 32610, USA
| | - Qi-Yin Chen
- Department of Medicinal Chemistry, College of Pharmacy, University of Florida, Gainesville, FL 32610, USA
| | - Junyi Hu
- Department of Medicinal Chemistry, College of Pharmacy, University of Florida, Gainesville, FL 32610, USA
| | - Shaquia Idlett-Ali
- Laboratory for Fetal and Regenerative Biology, Department of Surgery, University of Colorado Denver - Anschutz Medical Campus and Children's Hospital Colorado, Aurora, CO 80045, USA
| | - Liping Zhang
- Department of Physiology, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Carlos Zgheib
- Laboratory for Fetal and Regenerative Biology, Department of Surgery, University of Colorado Denver - Anschutz Medical Campus and Children's Hospital Colorado, Aurora, CO 80045, USA
| | - Junwang Xu
- Laboratory for Fetal and Regenerative Biology, Department of Surgery, University of Colorado Denver - Anschutz Medical Campus and Children's Hospital Colorado, Aurora, CO 80045, USA; Department of Physiology, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Kenneth W Liechty
- Laboratory for Fetal and Regenerative Biology, Department of Surgery, University of Colorado Denver - Anschutz Medical Campus and Children's Hospital Colorado, Aurora, CO 80045, USA.
| | - Siobhan Malany
- Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, FL 32610, USA.
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Lyttle BD, Vaughn AE, Bardill JR, Apte A, Gallagher LT, Zgheib C, Liechty KW. Effects of microRNAs on angiogenesis in diabetic wounds. Front Med (Lausanne) 2023; 10:1140979. [PMID: 37020673 PMCID: PMC10067680 DOI: 10.3389/fmed.2023.1140979] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 02/27/2023] [Indexed: 04/07/2023] Open
Abstract
Diabetes mellitus is a morbid condition affecting a growing number of the world population, and approximately one third of diabetic patients are afflicted with diabetic foot ulcers (DFU), which are chronic non-healing wounds that frequently progress to require amputation. The treatments currently used for DFU focus on reducing pressure on the wound, staving off infection, and maintaining a moist environment, but the impaired wound healing that occurs in diabetes is a constant obstacle that must be faced. Aberrant angiogenesis is a major contributor to poor wound healing in diabetes and surgical intervention is often necessary to establish peripheral blood flow necessary for healing wounds. Over recent years, microRNAs (miRNAs) have been implicated in the dysregulation of angiogenesis in multiple pathologies including diabetes. This review explores the pathways of angiogenesis that become dysregulated in diabetes, focusing on miRNAs that have been identified and the mechanisms by which they affect angiogenesis.
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Affiliation(s)
- Bailey D. Lyttle
- Laboratory for Fetal and Regenerative Biology, Department of Surgery, School of Medicine, University of Colorado Denver—Anschutz Medical Campus, Aurora, CO, United States
- *Correspondence: Bailey D. Lyttle,
| | - Alyssa E. Vaughn
- Laboratory for Fetal and Regenerative Biology, Department of Surgery, School of Medicine, University of Colorado Denver—Anschutz Medical Campus, Aurora, CO, United States
| | - James R. Bardill
- Laboratory for Fetal and Regenerative Biology, Department of Surgery, School of Medicine, University of Colorado Denver—Anschutz Medical Campus, Aurora, CO, United States
| | - Anisha Apte
- Laboratory for Fetal and Regenerative Biology, Department of Surgery, College of Medicine, University of Arizona Health Sciences College of Medicine—Tucson, Tucson, AZ, United States
| | - Lauren T. Gallagher
- Laboratory for Fetal and Regenerative Biology, Department of Surgery, School of Medicine, University of Colorado Denver—Anschutz Medical Campus, Aurora, CO, United States
| | - Carlos Zgheib
- Laboratory for Fetal and Regenerative Biology, Department of Surgery, College of Medicine, University of Arizona Health Sciences College of Medicine—Tucson, Tucson, AZ, United States
| | - Kenneth W. Liechty
- Laboratory for Fetal and Regenerative Biology, Department of Surgery, College of Medicine, University of Arizona Health Sciences College of Medicine—Tucson, Tucson, AZ, United States
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Suh JW, Lee KM, Ko EA, Yoon DS, Park KH, Kim HS, Yook JI, Kim NH, Lee JW. Promoting angiogenesis and diabetic wound healing through delivery of protein transduction domain-BMP2 formulated nanoparticles with hydrogel. J Tissue Eng 2023; 14:20417314231190641. [PMID: 37601810 PMCID: PMC10434183 DOI: 10.1177/20417314231190641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 07/12/2023] [Indexed: 08/22/2023] Open
Abstract
Decreased angiogenesis contributes to delayed wound healing in diabetic patients. Recombinant human bone morphogenetic protein-2 (rhBMP2) has also been demonstrated to promote angiogenesis. However, the short half-lives of soluble growth factors, including rhBMP2, limit their use in wound-healing applications. To address this limitation, we propose a novel delivery model using a protein transduction domain (PTD) formulated in a lipid nanoparticle (LNP). We aimed to determine whether a gelatin hydrogel dressing loaded with LNP-formulated PTD-BMP2 (LNP-PTD-BMP2) could enhance the angiogenic function of BMP2 and improve diabetic wound healing. In vitro, compared to the control and rhBMP2, LNP-PTD-BMP2 induced greater tube formation in human umbilical vein endothelial cells and increased the cell recruitment capacity of HaCaT cells. We inflicted large, full-thickness back skin wounds on streptozotocin-induced diabetic mice and applied gelatin hydrogel (GH) cross-linked by microbial transglutaminase containing rhBMP2, LNP-PTD-BMP2, or a control to these wounds. Wounds treated with LNP-PTD-BMP2-loaded GH exhibited enhanced wound closure, increased re-epithelialization rates, and higher collagen deposition than those with other treatments. Moreover, LNP-PTD-BMP2-loaded GH treatment resulted in more CD31- and α-SMA-positive cells, indicating greater neovascularization capacity than rhBMP2-loaded GH or GH treatments alone. Furthermore, in vivo near-infrared fluorescence revealed that LNP-PTD-BMP2 has a longer half-life than rhBMP2 and that BMP2 localizes around wounds. In conclusion, LNP-PTD-BMP2-loaded GH is a viable treatment option for diabetic wounds.
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Affiliation(s)
- Jae Wan Suh
- Department of Orthopaedic Surgery, Dankook University College of Medicine, Cheonan, South Korea
| | - Kyoung-Mi Lee
- Department of Orthopaedic Surgery, Yonsei University College of Medicine, Seoul, South Korea
| | - Eun Ae Ko
- Department of Orthopaedic Surgery, Yonsei University College of Medicine, Seoul, South Korea
| | - Dong Suk Yoon
- Department of Biomedical Science, Hwasung Medi-Science University, Hwaseong-Si, Gyeonggi-Do, South Korea
| | - Kwang Hwan Park
- Department of Orthopaedic Surgery, Yonsei University College of Medicine, Seoul, South Korea
| | - Hyun Sil Kim
- Department of Oral Pathology, Oral Cancer Research Institute, Yonsei University College of Dentistry, Seoul, South Korea
| | - Jong In Yook
- Department of Oral Pathology, Oral Cancer Research Institute, Yonsei University College of Dentistry, Seoul, South Korea
| | - Nam Hee Kim
- Department of Oral Pathology, Oral Cancer Research Institute, Yonsei University College of Dentistry, Seoul, South Korea
| | - Jin Woo Lee
- Department of Orthopaedic Surgery, Yonsei University College of Medicine, Seoul, South Korea
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea
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Li D, Niu G, Landén NX. Beyond the Code: Noncoding RNAs in Skin Wound Healing. Cold Spring Harb Perspect Biol 2022; 14:a041230. [PMID: 35197246 PMCID: PMC9438779 DOI: 10.1101/cshperspect.a041230] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
An increasing number of noncoding RNAs (ncRNAs) have been found to regulate gene expression and protein functions, playing important roles in diverse biological processes and diseases. Their crucial functions have been reported in almost every cell type and all stages of skin wound healing. Evidence of their pathogenetic roles in common wound complications, such as chronic nonhealing wounds and excessive scarring, is also accumulating. Given their unique expression and functional properties, ncRNAs are promising therapeutic and diagnostic entities. In this review, we discuss current knowledge about the functional roles of noncoding elements, such as microRNAs, long ncRNAs, and circular RNAs, in skin wound healing, focusing on in vivo evidence from studies of human wound samples and animal wound models. Finally, we provide a perspective on the outlook of ncRNA-based therapeutics in wound care.
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Affiliation(s)
- Dongqing Li
- Key Laboratory of Basic and Translational Research on Immune-Mediated Skin Diseases, Chinese Academy of Medical Sciences, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - Guanglin Niu
- Dermatology and Venereology Division, Department of Medicine Solna, Center for Molecular Medicine, Karolinska Institutet, 17176 Stockholm, Sweden
| | - Ning Xu Landén
- Dermatology and Venereology Division, Department of Medicine Solna, Center for Molecular Medicine, Karolinska Institutet, 17176 Stockholm, Sweden
- Ming Wai Lau Centre for Reparative Medicine, Stockholm Node, Karolinska Institute, 17177 Stockholm, Sweden
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6
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Xu J, Hu J, Idlett-Ali S, Zhang L, Caples K, Peddibhotla S, Reeves M, Zgheib C, Malany S, Liechty KW. Discovery of Small Molecule Activators of Chemokine Receptor CXCR4 That Improve Diabetic Wound Healing. Int J Mol Sci 2022; 23:2196. [PMID: 35216311 PMCID: PMC8879702 DOI: 10.3390/ijms23042196] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 02/07/2022] [Accepted: 02/09/2022] [Indexed: 12/16/2022] Open
Abstract
Diabetes produces a chronic inflammatory state that contributes to the development of vascular disease and impaired wound healing. Despite the known individual and societal impacts of diabetic ulcers, there are limited therapies effective at improving healing. Stromal cell-derived factor 1α (SDF-1α) is a CXC chemokine that functions via activation of the CXC chemokine receptor type 4 (CXCR4) receptor to recruit hematopoietic cells to locations of tissue injury and promote tissue repair. The expression of SDF-1α is reduced in diabetic wounds, suggesting a potential contribution to wound healing impairment and presenting the CXCR4 receptor as a target for therapeutic investigations. We developed a high-throughput β-arrestin recruitment assay and conducted structure-activity relationship (SAR) studies to screen compounds for utility as CXCR4 agonists. We identified CXCR4 agonist UCUF-728 from our studies and further validated its activity in vitro in diabetic fibroblasts. UCUF-728 reduced overexpression of miRNA-15b and miRNA-29a, negative regulators of angiogenesis and type I collagen production, respectively, in diabetic fibroblasts. In vivo, UCUF-728 reduced the wound closure time by 36% and increased the evidence of angiogenesis in diabetic mice. Together, this work demonstrates the clinical potential of small molecule CXCR4 agonists as novel therapies for pathologic wound healing in diabetes.
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Affiliation(s)
- Junwang Xu
- Department of Physiology, University of Tennessee Health Science Center, Memphis, TN 38163, USA;
- Laboratory for Fetal and Regenerative Biology, Department of Surgery, Anschutz Medical Campus, University of Colorado Denver Aurora, Denver, CO 80045, USA; (J.H.); (S.I.-A.); (L.Z.); (C.Z.)
| | - Junyi Hu
- Laboratory for Fetal and Regenerative Biology, Department of Surgery, Anschutz Medical Campus, University of Colorado Denver Aurora, Denver, CO 80045, USA; (J.H.); (S.I.-A.); (L.Z.); (C.Z.)
| | - Shaquia Idlett-Ali
- Laboratory for Fetal and Regenerative Biology, Department of Surgery, Anschutz Medical Campus, University of Colorado Denver Aurora, Denver, CO 80045, USA; (J.H.); (S.I.-A.); (L.Z.); (C.Z.)
| | - Liping Zhang
- Laboratory for Fetal and Regenerative Biology, Department of Surgery, Anschutz Medical Campus, University of Colorado Denver Aurora, Denver, CO 80045, USA; (J.H.); (S.I.-A.); (L.Z.); (C.Z.)
| | - Karly Caples
- Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, FL 32610, USA; (K.C.); (S.P.); (M.R.)
| | - Satyamaheshwar Peddibhotla
- Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, FL 32610, USA; (K.C.); (S.P.); (M.R.)
| | - Morgan Reeves
- Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, FL 32610, USA; (K.C.); (S.P.); (M.R.)
| | - Carlos Zgheib
- Laboratory for Fetal and Regenerative Biology, Department of Surgery, Anschutz Medical Campus, University of Colorado Denver Aurora, Denver, CO 80045, USA; (J.H.); (S.I.-A.); (L.Z.); (C.Z.)
| | - Siobhan Malany
- Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, FL 32610, USA; (K.C.); (S.P.); (M.R.)
| | - Kenneth W. Liechty
- Laboratory for Fetal and Regenerative Biology, Department of Surgery, Anschutz Medical Campus, University of Colorado Denver Aurora, Denver, CO 80045, USA; (J.H.); (S.I.-A.); (L.Z.); (C.Z.)
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7
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Bibby G, Krasniqi B, Reddy I, Sekar D, Ross K. Capturing the RNA castle: Exploiting MicroRNA inhibition for wound healing. FEBS J 2021; 289:5137-5151. [PMID: 34403569 DOI: 10.1111/febs.16160] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 07/14/2021] [Accepted: 08/16/2021] [Indexed: 02/06/2023]
Abstract
The growing pipelines of RNA-based therapies herald new opportunities to deliver better patient outcomes for complex disorders such as chronic nonhealing wounds associated with diabetes. Members of the microRNA (miRNA) family of small noncoding RNAs have emerged as targets for diverse elements of cutaneous wound repair, and both miRNA enhancement with mimics or inhibition with antisense oligonucleotides represent tractable approaches for miRNA-directed wound healing. In this review, we focus on miRNA inhibition strategies to stimulate skin repair given advances in chemical modifications to enhance the performance of antisense miRNA (anti-miRs). We first explore miRNAs whose inhibition in keratinocytes promotes keratinocyte migration, an essential part of re-epithelialisation during wound repair. We then focus on miRNAs that can be targeted for inhibition in endothelial cells to promote neovascularisation for wound healing in the context of diabetic mouse models. The picture that emerges is that direct comparisons of different anti-miRNAs modifications are required to establish the most translationally viable options in the chronic wound environment, that direct comparisons of the impact of inhibition of different miRNAs are needed to quantify and rank their relative efficacies in promoting wound repair, and that a standardised human ex vivo model of the diabetic wound is needed to reduce reliance on mouse models that do not necessarily enhance mechanistic understanding of miRNA-targeted wound healing.
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Affiliation(s)
- George Bibby
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, UK
| | - Blerta Krasniqi
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, UK
| | - Izaak Reddy
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, UK
| | - Durairaj Sekar
- Dental Research Cell and Biomedical Research Unit (DRC-BRULAC), Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Science (SIMATS), Saveetha University, Chennai, India
| | - Kehinde Ross
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, UK
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Kolanthai E, Fu Y, Kumar U, Babu B, Venkatesan AK, Liechty KW, Seal S. Nanoparticle mediated RNA delivery for wound healing. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2021; 14:e1741. [PMID: 34369096 DOI: 10.1002/wnan.1741] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Revised: 07/05/2021] [Accepted: 07/07/2021] [Indexed: 12/19/2022]
Abstract
Wound healing is a complicated physiological process that comprises various steps, including hemostasis, inflammation, proliferation, and remodeling. The wound healing process is significantly affected by coexisting disease states such as diabetes, immunosuppression, or vascular disease. It can also be impacted by age, repeated injury, or hypertrophic scarring. These comorbidities can affect the rate of wound closure, the quality of wound closure, and tissues' function at the affected sites. There are limited options to improve the rate or quality of wound healing, creating a significant unmet need. Advances in nucleic acid research and the human genome project have developed potential novel approaches to address these outstanding requirements. In particular, the use of microRNA, short hairpin RNA, and silencing RNA is unique in their abilities as key regulators within the physiologic machinery of the cell. Although this innovative therapeutic approach using ribonucleic acid (RNA) is an attractive approach, the application as a therapeutic remains a challenge due to site-specific delivery, off-target effects, and RNA degradation obstacles. An ideal delivery system is essential for successful gene delivery. An ideal delivery system should result in high bioactivity, inhibit rapid dilution, controlled release, allow specific activation timings facilitating physiological stability, and minimize multiple dosages. Currently, these goals can be achieved by inorganic nanoparticle (NP) (e.g., cerium oxide, gold, silica, etc.) based delivery systems. This review focuses on providing insight into the preeminent research carried out on various RNAs and their delivery through NPs for effective wound healing. This article is categorized under: Nanotechnology Approaches to Biology > Nanoscale Systems in Biology Therapeutic Approaches and Drug Discovery > Emerging Technologies Biology-Inspired Nanomaterials > Nucleic Acid-Based Structures.
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Affiliation(s)
- Elayaraja Kolanthai
- Advanced Materials Processing and Analysis Center, Department of Materials Science and Engineering, University of Central Florida, Orlando, Florida, USA
| | - Yifei Fu
- Advanced Materials Processing and Analysis Center, Department of Materials Science and Engineering, University of Central Florida, Orlando, Florida, USA
| | - Udit Kumar
- Advanced Materials Processing and Analysis Center, Department of Materials Science and Engineering, University of Central Florida, Orlando, Florida, USA
| | - Balaashwin Babu
- Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, Florida, USA
| | | | - Kenneth W Liechty
- Laboratory for Fetal and Regenerative Biology, Department of Surgery, University of Colorado Denver School of Medicine and Children's Hospital Colorado, Aurora, Colorado, USA
| | - Sudipta Seal
- Advanced Materials Processing and Analysis Center, Department of Materials Science and Engineering, University of Central Florida, Orlando, Florida, USA.,College of Medicine, Nanoscience Technology Center, Biionix Cluster, University of Central Florida, Orlando, Florida, USA
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9
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Barakat M, DiPietro LA, Chen L. Limited Treatment Options for Diabetic Wounds: Barriers to Clinical Translation Despite Therapeutic Success in Murine Models. Adv Wound Care (New Rochelle) 2021; 10:436-460. [PMID: 33050829 PMCID: PMC8236303 DOI: 10.1089/wound.2020.1254] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 10/12/2020] [Indexed: 12/15/2022] Open
Abstract
Significance: Millions of people worldwide suffer from diabetes mellitus and its complications, including chronic diabetic wounds. To date, there are few widely successful clinical therapies specific to diabetic wounds beyond general wound care, despite the vast number of scientific discoveries in the pathogenesis of defective healing in diabetes. Recent Advances: In recent years, murine animal models of diabetes have enabled the investigation of many possible therapeutics for diabetic wound care. These include specific cell types, growth factors, cytokines, peptides, small molecules, plant extracts, microRNAs, extracellular vesicles, novel wound dressings, mechanical interventions, bioengineered materials, and more. Critical Issues: Despite many research discoveries, few have been translated from their success in murine models to clinical use in humans. This massive gap between bench discovery and bedside application begs the simple and critical question: what is still missing? The complexity and multiplicity of the diabetic wound makes it an immensely challenging therapeutic target, and this lopsided progress highlights the need for new methods to overcome the bench-to-bedside barrier. How can laboratory discoveries in animal models be effectively translated to novel clinical therapies for human patients? Future Directions: As research continues to decipher deficient healing in diabetes, new approaches and considerations are required to ensure that these discoveries can become translational, clinically usable therapies. Clinical progress requires the development of new, more accurate models of the human disease state, multifaceted investigations that address multiple critical components in wound repair, and more innovative research strategies that harness both the existing knowledge and the potential of new advances across disciplines.
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Affiliation(s)
- May Barakat
- Center for Wound Repair and Tissue Regeneration, College of Dentistry, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Luisa A. DiPietro
- Center for Wound Repair and Tissue Regeneration, College of Dentistry, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Lin Chen
- Center for Wound Repair and Tissue Regeneration, College of Dentistry, University of Illinois at Chicago, Chicago, Illinois, USA
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Chong HH, Boksh K, Eastley N, Davison J. Predictors of wound leakage in patients undergoing surgery for neck of femur fractures. Ann R Coll Surg Engl 2021; 103:345-353. [PMID: 33852340 DOI: 10.1308/rcsann.2020.7085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
AIMS Persistent wound leakage following joint arthroplasty is a known risk for periprosthetic joint infection. Little is known of the predictors of wound leakage, particularly in patients with a fractured neck of femur. We aimed to determine patient and surgical risk factors for wound leakage in this cohort. MATERIALS AND METHODS All patients undergoing surgery for a fractured neck of femur at Leicester Royal Infirmary between May and August 2017 were included. Patients were identified from a prospective database and placed into two groups: those with wound leakage later than three days postoperatively and those without leakage. All previously reported potential risk factors for wound leakage were compared between groups using a chi-square test and logistic regression. A Kattan-style nomogram was also created to allow probabilities output for the regression predictive models in a visual representation. RESULTS Two hundred patients underwent surgery for a fractured neck of femur. Overall, 17% of patients (33/200) developed a persistent leaky wound. A multivariable model highlighted increased age (p = 0.01), raised body mass index (BMI; > 25 kg/m2; p = 0.047), diabetes (p = 0.03) and intramedullary hip screw fixation (p = 0.03) as significant risk factors for wound leakage. Patients with persistent wound leakage had significantly longer hospital admission than those without (p = 0.001). DISCUSSION Our analysis identified four perioperative risk factors for wound leakage following fractured neck of femur surgery. We also developed a novel tool to identify those patients at highest risk of leakage. Once identified, the aggressive management of certain medical comorbidities in these patients may help to reduce their incidence of wound issues and the prolonged admissions that result.
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Affiliation(s)
- H H Chong
- University Hospitals of Leicester NHS Trust, Leicester, UK
| | - K Boksh
- University Hospitals of Leicester NHS Trust, Leicester, UK
| | - N Eastley
- University Hospitals of Leicester NHS Trust, Leicester, UK
| | - J Davison
- University Hospitals of Leicester NHS Trust, Leicester, UK
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Pastar I, Marjanovic J, Stone RC, Chen V, Burgess JL, Mervis JS, Tomic-Canic M. Epigenetic regulation of cellular functions in wound healing. Exp Dermatol 2021; 30:1073-1089. [PMID: 33690920 DOI: 10.1111/exd.14325] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 03/04/2021] [Accepted: 03/08/2021] [Indexed: 02/06/2023]
Abstract
Stringent spatiotemporal regulation of the wound healing process involving multiple cell types is associated with epigenetic mechanisms of gene regulation, such as DNA methylation, histone modification and chromatin remodelling, as well as non-coding RNAs. Here, we discuss the epigenetic changes that occur during wound healing and the rapidly expanding understanding of how these mechanisms affect healing resolution in both acute and chronic wound milieu. We provide a focussed overview of current research into epigenetic regulators that contribute to wound healing by specific cell type. We highlight the role of epigenetic regulators in the molecular pathophysiology of chronic wound conditions. The understanding of how epigenetic regulators can affect cellular functions during normal and impaired wound healing could lead to novel therapeutic approaches, and we outline questions that can provide guidance for future research on epigenetic-based interventions to promote healing. Dissecting the dynamic interplay between cellular subtypes involved in wound healing and epigenetic parameters during barrier repair will deepen our understanding of how to improve healing outcomes in patients affected by chronic non-healing wounds.
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Affiliation(s)
- Irena Pastar
- Dr Phillip Frost Department of Dermatology and Cutaneous Surgery, Wound Healing and Regenerative Medicine Research Program, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Jelena Marjanovic
- Dr Phillip Frost Department of Dermatology and Cutaneous Surgery, Wound Healing and Regenerative Medicine Research Program, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Rivka C Stone
- Dr Phillip Frost Department of Dermatology and Cutaneous Surgery, Wound Healing and Regenerative Medicine Research Program, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Vivien Chen
- Dr Phillip Frost Department of Dermatology and Cutaneous Surgery, Wound Healing and Regenerative Medicine Research Program, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Jamie L Burgess
- Dr Phillip Frost Department of Dermatology and Cutaneous Surgery, Wound Healing and Regenerative Medicine Research Program, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Joshua S Mervis
- Dr Phillip Frost Department of Dermatology and Cutaneous Surgery, Wound Healing and Regenerative Medicine Research Program, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Marjana Tomic-Canic
- Dr Phillip Frost Department of Dermatology and Cutaneous Surgery, Wound Healing and Regenerative Medicine Research Program, University of Miami Miller School of Medicine, Miami, FL, USA
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12
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Li J, Wei M, Liu X, Xiao S, Cai Y, Li F, Tian J, Qi F, Xu G, Deng C. The progress, prospects, and challenges of the use of non-coding RNA for diabetic wounds. MOLECULAR THERAPY-NUCLEIC ACIDS 2021; 24:554-578. [PMID: 33981479 PMCID: PMC8063712 DOI: 10.1016/j.omtn.2021.03.015] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Chronic diabetic wounds affect the quality of life of patients, resulting in significant social and economic burdens on both individuals and the health care system. Although treatment methods for chronic diabetic wounds have been explored, there remains a lack of effective treatment strategies; therefore, alternative strategies must be explored. Recently, the abnormal expression of non-coding RNA in diabetic wounds has received widespread attention since it is an important factor in the development of diabetic wounds. This article reviews the regulatory role of three common non-coding RNAs (microRNA [miRNA], long non-coding RNA [lncRNA], and circular RNA [circRNA]) in diabetic wounds and discusses the diagnosis, treatment potential, and challenges of non-coding RNA in diabetic wounds. This article provides insights into new strategies for diabetic wound diagnosis and treatment at the genetic and molecular levels.
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Affiliation(s)
- Jianyi Li
- Department of Plastic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563000, People's Republic of China.,Collaborative Innovation Center of Tissue Injury Repair and Regenerative Medicine Co-sponsored by Province and Ministry, Affiliated Zunyi Medical University, Zunyi, Guizhou 563000, People's Republic of China
| | - Miaomiao Wei
- Department of Plastic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563000, People's Republic of China.,Collaborative Innovation Center of Tissue Injury Repair and Regenerative Medicine Co-sponsored by Province and Ministry, Affiliated Zunyi Medical University, Zunyi, Guizhou 563000, People's Republic of China
| | - Xin Liu
- Department of Plastic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563000, People's Republic of China.,Collaborative Innovation Center of Tissue Injury Repair and Regenerative Medicine Co-sponsored by Province and Ministry, Affiliated Zunyi Medical University, Zunyi, Guizhou 563000, People's Republic of China
| | - Shune Xiao
- Department of Plastic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563000, People's Republic of China.,Collaborative Innovation Center of Tissue Injury Repair and Regenerative Medicine Co-sponsored by Province and Ministry, Affiliated Zunyi Medical University, Zunyi, Guizhou 563000, People's Republic of China
| | - Yuan Cai
- Department of Plastic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563000, People's Republic of China
| | - Fang Li
- Department of Plastic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563000, People's Republic of China
| | - Jiao Tian
- Department of Plastic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563000, People's Republic of China.,Collaborative Innovation Center of Tissue Injury Repair and Regenerative Medicine Co-sponsored by Province and Ministry, Affiliated Zunyi Medical University, Zunyi, Guizhou 563000, People's Republic of China
| | - Fang Qi
- Department of Plastic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563000, People's Republic of China.,Collaborative Innovation Center of Tissue Injury Repair and Regenerative Medicine Co-sponsored by Province and Ministry, Affiliated Zunyi Medical University, Zunyi, Guizhou 563000, People's Republic of China
| | - Guangchao Xu
- Department of Plastic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563000, People's Republic of China.,Collaborative Innovation Center of Tissue Injury Repair and Regenerative Medicine Co-sponsored by Province and Ministry, Affiliated Zunyi Medical University, Zunyi, Guizhou 563000, People's Republic of China
| | - Chengliang Deng
- Department of Plastic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563000, People's Republic of China.,Collaborative Innovation Center of Tissue Injury Repair and Regenerative Medicine Co-sponsored by Province and Ministry, Affiliated Zunyi Medical University, Zunyi, Guizhou 563000, People's Republic of China
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13
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Bardill JR, Williams SM, Laughter MR, Park D, Marwan AI. Evaluation of scaffolding, inflammatory response, and wound healing support of a reverse thermal gel for myelomeningocele patching. J Appl Polym Sci 2021. [DOI: 10.1002/app.50013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- James R. Bardill
- Department of Bioengineering University of Colorado Denver Anschutz Medical Campus Aurora Colorado USA
- Division of Pediatric Surgery, Department of Surgery University of Colorado Denver Anschutz Medical Campus Aurora Colorado USA
| | - Sarah M. Williams
- Division of Pediatric Surgery, Department of Surgery University of Colorado Denver Anschutz Medical Campus Aurora Colorado USA
| | - Melissa R. Laughter
- Department of Bioengineering University of Colorado Denver Anschutz Medical Campus Aurora Colorado USA
| | - Daewon Park
- Department of Bioengineering University of Colorado Denver Anschutz Medical Campus Aurora Colorado USA
| | - Ahmed I. Marwan
- Department of Surgery University of Colorado, Anschutz medical campus Aurora Colorado USA
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14
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Wang TY, Wang W, Li FF, Chen YC, Jiang D, Chen YD, Yang H, Liu L, Lu M, Sun JS, Gu DM, Wang J, Wang AP. Maggot excretions/secretions promote diabetic wound angiogenesis via miR18a/19a - TSP-1 axis. Diabetes Res Clin Pract 2020; 165:108140. [PMID: 32277954 DOI: 10.1016/j.diabres.2020.108140] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 02/29/2020] [Accepted: 03/30/2020] [Indexed: 12/15/2022]
Abstract
AIMS The impaired angiogenesis is one of the main factors affecting the healing of diabetic foot ulcer (DFU) wounds. Maggot debridement therapy (MDT) promotes granulation tissue growth and angiogenesis during DFU wound healing. Non-coding microRNAs can also promote local angiogenesis in DFU wounds by regulating wound repairing related gene expression. The purpose of this study was to investigate the mechanism of microRNAs in MDT promoting DFU wound angiogenesis. METHODS In this study, we applied MDT to treat DFU wound tissue and detect the expression of the miR-17-92 cluster. In vitro experiments, human umbilical vein endothelial cells (HUVECs) were treated with maggot excretions/secretions (ES), the miR-17-92 cluster and the predicted target gene expression were measured. Tube formation assay and cell scratch assay were performed when inhibition of miR-18a/19a or overexpression of thrombospondin-1 (TSP-1) were used in this study. RESULTS miR-18a/19a transcription significantly up-regulated and TSP-1 expression down-regulated in patients wound tissue and in HUVECs. Inhibition of miR-18a/19a or overexpression of TSP-1 partially blocked the migration and tube formation ability stimulated by ES. CONCLUSION Targeted activation of miR-18a/19a transcription levels and subsequent regulation of TSP-1 expression may be a novel therapeutic strategy for DFU.
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Affiliation(s)
- Tian-Yuan Wang
- Endocrinology Department, Air Force Hospital of Eastern Theater Command, No.1 Malu Road, Nanjing 210002, China.
| | - Wei Wang
- Endocrinology Department, Air Force Hospital of Eastern Theater Command, No.1 Malu Road, Nanjing 210002, China.
| | - Fei-Fei Li
- Endocrinology Department, The Second Hospital of Anhui Medical University, No.678 Furong Road, Hefei 230601, China.
| | - Yin-Chen Chen
- Endocrinology Department, Air Force Hospital of Eastern Theater Command, No.1 Malu Road, Nanjing 210002, China.
| | - Dong Jiang
- Endocrinology Department, Air Force Hospital of Eastern Theater Command, No.1 Malu Road, Nanjing 210002, China.
| | - Yue-Dong Chen
- Endocrinology Department, Air Force Hospital of Eastern Theater Command, No.1 Malu Road, Nanjing 210002, China.
| | - Hui Yang
- Endocrinology Department, Air Force Hospital of Eastern Theater Command, No.1 Malu Road, Nanjing 210002, China.
| | - Lan Liu
- Endocrinology Department, Air Force Hospital of Eastern Theater Command, No.1 Malu Road, Nanjing 210002, China.
| | - Meng Lu
- Endocrinology Department, Air Force Hospital of Eastern Theater Command, No.1 Malu Road, Nanjing 210002, China.
| | - Jin-Shan Sun
- Endocrinology Department, Air Force Hospital of Eastern Theater Command, No.1 Malu Road, Nanjing 210002, China.
| | - Dong-Mei Gu
- Endocrinology Department, Air Force Hospital of Eastern Theater Command, No.1 Malu Road, Nanjing 210002, China.
| | - Jing Wang
- Translational medicine center, Air Force Hospital of Eastern Theater Command, No.1 Malu Road, Nanjing 210002, China.
| | - Ai-Ping Wang
- Endocrinology Department, Air Force Hospital of Eastern Theater Command, No.1 Malu Road, Nanjing 210002, China.
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15
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Role of microRNA-21 and Its Underlying Mechanisms in Inflammatory Responses in Diabetic Wounds. Int J Mol Sci 2020; 21:ijms21093328. [PMID: 32397166 PMCID: PMC7247578 DOI: 10.3390/ijms21093328] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 05/01/2020] [Accepted: 05/06/2020] [Indexed: 12/12/2022] Open
Abstract
A central feature of diabetic wounds is the persistence of chronic inflammation, which is partly due to the prolonged presence of pro-inflammatory (M1) macrophages in diabetic wounds. Persistence of the M1 macrophage phenotype and failure to transition to the regenerative or pro-remodeling (M2) macrophage phenotype plays an indispensable role in diabetic wound impairment; however, the mechanism underlying this relationship remains unclear. Recently, microRNAs have been shown to provide an additional layer of regulation of gene expression. In particular, microRNA-21 (miR-21) is essential for an inflammatory immune response. We hypothesize that miR-21 plays a role in regulating inflammation by promoting M1 macrophage polarization and the production of reactive oxygen species (ROS). To test our hypothesis, we employed an in vivo mouse skin wound model in conjunction with an in vitro mouse model to assess miR-21 expression and macrophage polarization. First, we found that miR-21 exhibits a distinct expression pattern in each phase of healing in diabetic wounds. MiR-21 abundance was higher during early and late phases of wound repair in diabetic wounds, while it was significantly lower in the middle phase of wounding (at days 3 and 7 following wounding). In macrophage cells, M1 polarized macrophages exhibited an upregulation of miR-21, as well as the M1 and pro-inflammatory markers IL-1b, TNFa, iNos, IL-6, and IL-8. Overexpression of miR-21 in macrophage cells resulted in an upregulation of miR-21 and also increased expression of the M1 markers IL-1b, TNFa, iNos, and IL-6. Furthermore, hyperglycemia induced NOX2 expression and ROS production through the HG/miR-21/PI3K/NOX2/ROS signaling cascade. These findings provide evidence that miR-21 is involved in the regulation of inflammation. Dysregulation of miR-21 may explain the abnormal inflammation and persistent M1 macrophage polarization seen in diabetic wounds.
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16
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Ganesh GV, Ramkumar KM. Macrophage mediation in normal and diabetic wound healing responses. Inflamm Res 2020; 69:347-363. [PMID: 32146517 DOI: 10.1007/s00011-020-01328-y] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 01/23/2020] [Accepted: 02/18/2020] [Indexed: 02/07/2023] Open
Abstract
PURPOSE The failure in timely healing of wounds is a central feature in chronic wounds that leads to physiological, psychological and economic burdens. Macrophages have been demonstrated to have various functions in wounds including host defense, the promotion and resolution of inflammation, the removal of apoptotic cells and tissue restoration following injury. Accumulated evidence suggests that macrophage dysfunction is a component of the pathogenesis of non-healing wounds. While the overall signaling cascades have been well understood, their complex interplay and a detailed characterization of events that are disrupted in chronic wounds have still not emerged satisfactorily. METHODS The existing literature was reviewed to summarize the regulation of macrophage polarization in wound closure and dysregulation in non-healing wounds. Further, the review also underscored the role of Nrf2 in promoting macrophage-mediated regulation in wound responses and in particular, macrophage involvement in iron homeostasis that is impaired in chronic wounds such as in diabetes. RESULTS The mechanisms involved in the reprogramming of macrophage subtypes in chronic wounds are still emerging. Furthermore, treating non-healing wounds has increasingly been shifting focus from generic treatments to the development of targeted therapies. Increasing evidence suggests the need for modeling wound tissue in vitro which may very well serve a critical aspect to characterize the relevant factors that sustain chronic wounds in vivo such as the constant iron overload at the wound site from recurrent infection and bleeding. CONCLUSION The development of targeted therapies and also developing a reliable means to monitor assisted healing of chronic wounds are two major goals to be pursued. In addition, identifying molecular targets that can regulate macrophages to aid tissue restoration in chronic wounds would serve the crucial step in realizing both aforementioned goals.
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Affiliation(s)
- Goutham V Ganesh
- Life Science Division, SRM Research Institute, SRM Institute of Science and Technology, Kattankulathur, Tamilnadu, 603 203, India.,Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603 203, India
| | - Kunka Mohanram Ramkumar
- Life Science Division, SRM Research Institute, SRM Institute of Science and Technology, Kattankulathur, Tamilnadu, 603 203, India.
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17
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Wang T, Zheng Y, Shi Y, Zhao L. pH-responsive calcium alginate hydrogel laden with protamine nanoparticles and hyaluronan oligosaccharide promotes diabetic wound healing by enhancing angiogenesis and antibacterial activity. Drug Deliv Transl Res 2019; 9:227-239. [PMID: 30519937 DOI: 10.1007/s13346-018-00609-8] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Diabetic wounds as chronic wounds represent a severe, persistent complication of diabetes and, in the most extreme cases, can lead to amputation. Two critical and unfavorable factors affecting diabetic wound healing are sustained bacterial-induced chronic inflammation and disrupted vascularization. In this paper, we presented a novel, pH-responsive calcium alginate hydrogel laden with protamine nanoparticles and hyaluronan oligosaccharides, and explored its potential for accelerating diabetic wound healing. A thorough investigation indicated that the drug- and nanoparticle-loaded hydrogel demonstrated strong bactericidal behavior mediated by protamine nanoparticles and reduced bacterial-induced chronic inflammation at the wound site. Furthermore, it accelerated the wound-healing process by promoting angiogenesis in skin wounds with the hyaluronan oligosaccharide-mediated enhanced expression of vascular endothelial growth factor.
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Affiliation(s)
- Tao Wang
- School of Pharmacy, Jinzhou Medical University, Jinzhou, 121000, People's Republic of China
| | - Yan Zheng
- School of Pharmacy, Jinzhou Medical University, Jinzhou, 121000, People's Republic of China
| | - Yijie Shi
- School of Pharmacy, Jinzhou Medical University, Jinzhou, 121000, People's Republic of China
| | - Liang Zhao
- School of Pharmacy, Jinzhou Medical University, Jinzhou, 121000, People's Republic of China.
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18
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Goodarzi G, Maniati M, Qujeq D. The role of microRNAs in the healing of diabetic ulcers. Int Wound J 2019; 16:621-633. [PMID: 30821119 PMCID: PMC7949391 DOI: 10.1111/iwj.13070] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Accepted: 12/28/2018] [Indexed: 12/17/2022] Open
Abstract
MicroRNAs (miRNAs) are small protected molecules with a length of 18 to 25 nucleotides. Many studies have recently been conducted on miRNAs, illustrating their role in regulating many biological, physiological, and pathological activities, such as maintaining cellular signalling and regulating cellular pathways. The main role of miRNAs is to regulate the expression of genes after translation, which can lead to the destruction or suppression of translation by binding to mRNAs. As any change in the regulation of miRNAs is associated with several physiological abnormalities, such as type 2 diabetes and its complications, these molecules can be used for therapeutic purposes or as biomarkers for the diagnosis of diseases such as diabetes and its complications. In this review article, we will discuss important findings about the miRNAs and the role of these molecules in different phases of the wound-healing process of chronic wounds, especially diabetic ulcer.
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Affiliation(s)
- Golnaz Goodarzi
- Department of Medical Biochemistry and Biotechnology, School of MedicineNorth Khorasan University of Medical SciencesBojnurdIran
| | - Mahmood Maniati
- School of MedicineAhvaz Jundishapur University of Medical SciencesAhvazIran
| | - Durdi Qujeq
- Cellular and Molecular Biology Research Center (CMBRC), Health Research InstituteBabol University of Medical SciencesBabolIran
- Dental Materials Research Center, Institute of HealthBabol University of Medical SciencesBabolIran
- Cancer Research Center, Health Research InstituteBabol University of Medical SciencesBabolIran
- Department of Clinical Biochemistry, School of MedicineBabol University of Medical SciencesBabolIran
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19
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Zimta AA, Baru O, Badea M, Buduru SD, Berindan-Neagoe I. The Role of Angiogenesis and Pro-Angiogenic Exosomes in Regenerative Dentistry. Int J Mol Sci 2019; 20:ijms20020406. [PMID: 30669338 PMCID: PMC6359271 DOI: 10.3390/ijms20020406] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 01/04/2019] [Accepted: 01/15/2019] [Indexed: 02/07/2023] Open
Abstract
Dental surgeries can result in traumatic wounds that provoke major discomfort and have a high risk of infection. In recent years, density research has taken a keen interest in finding answers to this problem by looking at the latest results made in regenerative medicine and adapting them to the specificities of oral tissue. One of the undertaken directions is the study of angiogenesis as an integrative part of oral tissue regeneration. The stimulation of this process is intended to enhance the local availability of stem cells, oxygen levels, nutrient supply, and evacuation of toxic waste. For a successful stimulation of local angiogenesis, two major cellular components must be considered: the stem cells and the vascular endothelial cells. The exosomes are extracellular vesicles, which mediate the communication between two cell types. In regenerative dentistry, the analysis of exosome miRNA content taps into the extended communication between these cell types with the purpose of improving the regenerative potential of oral tissue. This review analyzes the stem cells available for the dentistry, the molecular cargo of their exosomes, and the possible implications these may have for a future therapeutic induction of angiogenesis in the oral wounds.
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Affiliation(s)
- Alina-Andreea Zimta
- MEDFUTURE-Research Center for Advanced Medicine, "Iuliu Hatieganu" University of Medicine and Pharmacy, 23 Marinescu Street, 400337 Cluj-Napoca, Romania.
| | - Oana Baru
- Department of Preventive Dentistry, Faculty of Dental Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 400083 Cluj-Napoca, Romania.
| | - Mandra Badea
- Department of Preventive Dentistry, Faculty of Dental Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 400083 Cluj-Napoca, Romania.
| | - Smaranda Dana Buduru
- Prosthetics and Dental materials, Faculty of Dental Medicine, "Iuliu Hatieganu" University of Medicine and Pharmacy, Cluj-Napoca, 32 Clinicilor Street, 400006 Cluj-Napoca, Romania.
- Stomestet Stomatology Clinic, Calea Manastur 68A Street, 400658 Cluj-Napoca, Romania.
| | - Ioana Berindan-Neagoe
- MEDFUTURE-Research Center for Advanced Medicine, "Iuliu Hatieganu" University of Medicine and Pharmacy, 23 Marinescu Street, 400337 Cluj-Napoca, Romania.
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, "Iuliu Hatieganu" University of Medicine and Pharmacy, 23 Marinescu Street, 400337 Cluj-Napoca, Romania.
- Department of Functional Genomics and Experimental Pathology, The Oncology Institute "Prof. Dr. Ion Chiricuta", Republicii 34th street, 400015 Cluj-Napoca, Romania.
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20
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Autologous blood transfusion augments impaired wound healing in diabetic mice by enhancing lncRNA H19 expression via the HIF-1α signaling pathway. Cell Commun Signal 2018; 16:84. [PMID: 30458806 PMCID: PMC6245761 DOI: 10.1186/s12964-018-0290-6] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Accepted: 10/25/2018] [Indexed: 11/25/2022] Open
Abstract
Background Impaired wound healing frequently occurs in diabetes mellitus (DM) and is implicated in impaired angiogenesis. Long non-coding RNA (lncRNA) H19 has been reported as being reduced in DM and played a critical role in inducing angiogenesis. Thus, we hypothesized that H19 may affect impaired wound healing in streptozotocin (STZ)-induced diabetic mice transfused with autologous blood preserved in standard preservative fluid or modified preservative fluid. Methods Fibroblasts in injured skin were isolated and cultured in vitro. After location of H19 in fibroblasts using fluorescence in situ hybridization (FISH), RNA-pull down, RNA immunoprecipitation (RIP), chromatin immunoprecipitation (ChIP), Co immunoprecipitation (COIP) and dual luciferase reporter gene assay were used to verify the binding of H19 to HIF-1α. Results The modified preservative fluid preserved autologous blood increased the H19 expression in fibroblasts, and maintained better oxygen-carrying and oxygen release capacities as well as coagulation function. Furthermore, H19 promoted HIF-1α histone H3K4me3 methylation and increased HIF-1α expression by recruiting EZH2. H19 promoted fibroblast activation by activating HIF-1α signaling pathway in fibroblasts and enhanced wound healing in diabetic mice. Conclusions Taken together, H19 accelerated fibroblast activation by recruiting EZH2-mediated histone methylation and modulating the HIF-1α signaling pathway, whereby augmenting the process of modified preservative fluid preserved autologous blood enhancing the postoperative wound healing in diabetic mice.
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21
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Ozdemir D, Feinberg MW. MicroRNAs in diabetic wound healing: Pathophysiology and therapeutic opportunities. Trends Cardiovasc Med 2018; 29:131-137. [PMID: 30143275 DOI: 10.1016/j.tcm.2018.08.002] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2018] [Revised: 07/26/2018] [Accepted: 08/03/2018] [Indexed: 01/11/2023]
Abstract
Diabetic wound healing is an incompletely understood pathophysiological state. It comprises a range of potentially devastating and common complications of diabetes mellitus (DM) leading to intractable infections, lower extremity amputations, and associated cardiovascular morbidity and mortality. MicroRNAs (miRNAs) have emerged as important regulators in various physiological processes in health and disease through their ability to fine-tune cellular responses. Herein, we summarize the versatile roles of miRNAs implicated in diabetic wound healing in key stages including inflammation, angiogenesis, re-epithelialization, and remodeling. Furthermore, we highlight current evidence through which miRNAs exert control of gene expression and signaling pathways in the reparative response that may provide opportunities for therapeutic intervention for this potentially devastating disease state.
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Affiliation(s)
- Denizhan Ozdemir
- Department of Internal Medicine, Yale New Haven Hospital, Yale School of Medicine, New Haven, CT, United States
| | - Mark W Feinberg
- Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, United States.
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22
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Tao SC, Rui BY, Wang QY, Zhou D, Zhang Y, Guo SC. Extracellular vesicle-mimetic nanovesicles transport LncRNA-H19 as competing endogenous RNA for the treatment of diabetic wounds. Drug Deliv 2018; 25:241-255. [PMID: 29334272 PMCID: PMC6058500 DOI: 10.1080/10717544.2018.1425774] [Citation(s) in RCA: 106] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Diabetic wounds, one of the most enervating complications of diabetes mellitus, affect millions of people worldwide annually. Vascular insufficiency, caused by hyperglycemia, is one of the primary causes and categories of diabetic impaired wound healing. Recently, long noncoding RNA (LncRNA)-H19, which is significantly decreased in diabetes and may be crucial in triggering angiogenesis, has attracted increasing interest. The possible relationship between the decrease of LncRNA-H19 and the impairment of angiogenesis in diabetes could involve impairment of the insulin-phosphatidylinositol 3-kinase (PI3K)-Akt pathway via the interdiction of LncRNA-H19. Thus, a therapeutic strategy utilizing LncRNA-H19 delivery is feasible. In this study, we investigated the possibility of using high-yield extracellular vesicle-mimetic nanovesicles (EMNVs) as an effective nano-drug delivery system for LncRNA, and studied the function of EMNVs with a high content of LncRNA-H19 (H19EMNVs). The results, which were exciting, showed that H19EMNVs had a strong ability to neutralize the regeneration-inhibiting effect of hyperglycemia, and could remarkably accelerate the healing processes of chronic wounds. Our results suggest that bioengineered EMNVs can serve as a powerful instrument to effectively deliver LncRNA and will be an extremely promising multifunctional drug delivery system in the immediate future.
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Affiliation(s)
- Shi-Cong Tao
- a Department of Orthopedic Surgery , Shanghai Jiao Tong University Affiliated Sixth People's Hospital , Shanghai , China
| | - Bi-Yu Rui
- a Department of Orthopedic Surgery , Shanghai Jiao Tong University Affiliated Sixth People's Hospital , Shanghai , China
| | - Qi-Yang Wang
- a Department of Orthopedic Surgery , Shanghai Jiao Tong University Affiliated Sixth People's Hospital , Shanghai , China
| | - Ding Zhou
- a Department of Orthopedic Surgery , Shanghai Jiao Tong University Affiliated Sixth People's Hospital , Shanghai , China
| | - Yang Zhang
- b Department of Pharmacy , Shanghai Tenth People's Hospital of Tongji University , Shanghai , China
| | - Shang-Chun Guo
- c Institute of Microsurgery on Extremities , Shanghai Jiao Tong University Affiliated Sixth People's Hospital , Shanghai , China
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23
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miRNA delivery for skin wound healing. Adv Drug Deliv Rev 2018; 129:308-318. [PMID: 29273517 DOI: 10.1016/j.addr.2017.12.011] [Citation(s) in RCA: 88] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 11/24/2017] [Accepted: 12/16/2017] [Indexed: 12/13/2022]
Abstract
The wound healing has remained a worldwide challenge as one of significant public health problems. Pathological scars and chronic wounds caused by injury, aging or diabetes lead to impaired tissue repair and regeneration. Due to the unique biological wound environment, the wound healing is a highly complicated process, efficient and targeted treatments are still lacking. Hence, research-driven to discover more efficient therapeutics is a highly urgent demand. Recently, the research results have revealed that microRNA (miRNA) is a promising tool in therapeutic and diagnostic fields because miRNA is an essential regulator in cellular physiology and pathology. Therefore, new technologies for wound healing based on miRNA have been developed and miRNA delivery has become a significant research topic in the field of gene delivery.
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Pizzino G, Irrera N, Galfo F, Pallio G, Mannino F, D'amore A, Pellegrino E, Ieni A, Russo GT, Calapai M, Altavilla D, Squadrito F, Bitto A. Effects of the antagomiRs 15b and 200b on the altered healing pattern of diabetic mice. Br J Pharmacol 2018; 175:644-655. [PMID: 29178246 DOI: 10.1111/bph.14113] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 11/14/2017] [Accepted: 11/16/2017] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND AND PURPOSE Diabetic patients with non-healing ulcers have a reduced expression of VEGF. Genetically diabetic mice have an altered expression pattern of VEGF and its receptor, VEGF receptor 2 (VEGFR-2). In diabetic wounds, the microRNAs, miR15b and miR200b, which respectively inhibit VEGF and VEGF-R2 mRNAs, are up-regulated, further affecting the impaired angiogenesis. We investigated whether anti-miRs directed toward miR15b and miR200b could improve wound repair in genetically diabetic mice. EXPERIMENTAL APPROACH Skin wounds were produced on the backs of female diabetic mice. The anti-miRs (antimiR15b, antimiR200b or antimiR15b/200b) at 10 mg·kg-1 , or vehicle were applied to the wound edge. Mice were killed on days 7, 14 and at time of complete wound closure. Levels of mRNA and protein of angiogenic mediators and their receptors were measured with RT-qPCR and Western blotting. Wounds were examined by histological and immunochemical methods. KEY RESULTS mRNA expression of VEGF, VEGFR-2, angiopoietin-1 and its receptor TEK were evaluated after 7 and 14 days. Protein levels of VEGF and transglutaminase II were measured at day 7, while VEGFR-2 and Angiopoietin-1 were measured at day 14. Histological features and the time to achieve a complete wound closure were also examined. Treatment with the anti-miRs improved the analysed parameters and the co-treatment resulted the most effective. CONCLUSION AND IMPLICATIONS The results suggest that the inhibition of miR15b and miR200b may have a potential application in diabetes-related wound disorders.
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Affiliation(s)
- Gabriele Pizzino
- Department of Clinical and Experimental Medicine, Section of Pharmacology, Medical School, University of Messina, Messina, Italy
| | - Natasha Irrera
- Department of Clinical and Experimental Medicine, Section of Pharmacology, Medical School, University of Messina, Messina, Italy
| | - Federica Galfo
- Department of Clinical and Experimental Medicine, Section of Pharmacology, Medical School, University of Messina, Messina, Italy
| | - Giovanni Pallio
- Department of Clinical and Experimental Medicine, Section of Pharmacology, Medical School, University of Messina, Messina, Italy
| | - Federica Mannino
- Department of Clinical and Experimental Medicine, Section of Pharmacology, Medical School, University of Messina, Messina, Italy
| | - Angelica D'amore
- Department of Clinical and Experimental Medicine, Section of Pharmacology, Medical School, University of Messina, Messina, Italy
| | - Enrica Pellegrino
- Department of Clinical and Experimental Medicine, Section of Pharmacology, Medical School, University of Messina, Messina, Italy
| | - Antonio Ieni
- Department of Human Pathology, University of Messina, Messina, Italy
| | - Giuseppina T Russo
- Department of Clinical and Experimental Medicine, Section of Pharmacology, Medical School, University of Messina, Messina, Italy
| | - Marco Calapai
- Department of Clinical and Experimental Medicine, Section of Pharmacology, Medical School, University of Messina, Messina, Italy
| | - Domenica Altavilla
- Department of Biomedical Sciences, Dentistry and Morphological and Functional Images, University of Messina, Messina, Italy
| | - Francesco Squadrito
- Department of Clinical and Experimental Medicine, Section of Pharmacology, Medical School, University of Messina, Messina, Italy
| | - Alessandra Bitto
- Department of Clinical and Experimental Medicine, Section of Pharmacology, Medical School, University of Messina, Messina, Italy
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25
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Xu J, Zgheib C, Hodges MM, Caskey RC, Hu J, Liechty KW. Mesenchymal stem cells correct impaired diabetic wound healing by decreasing ECM proteolysis. Physiol Genomics 2017; 49:541-548. [PMID: 28842435 DOI: 10.1152/physiolgenomics.00090.2016] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Revised: 08/22/2017] [Accepted: 08/22/2017] [Indexed: 12/26/2022] Open
Abstract
Impaired diabetic wound healing is associated with a dermal extracellular matrix protein profile favoring proteolysis; within the healing diabetic wound, this is represented by an increase in activated matrix metalloproteinase (MMPs). Treatment of diabetic wounds with mesenchymal stem cells (MSCs) has been shown to improve wound healing; however, there has not yet been an assessment of their ability to correct dysregulation of MMPs in diabetic wounds. Furthermore, there has been no prior assessment of the role of microRNA29b (miR-29b), an inhibitory regulatory molecule that targets MMP-9 mRNA. Using in vitro models of fibroblast coculture with MSCs and in vivo murine wound healing models, we tested the hypothesis that MSCs correct dysregulation of MMPs in a microRNA-29b-dependent mechanism. In this study, we first demonstrated that collagen I and III protein content is significantly reduced in diabetic wounds, and treatment with MSCs significantly improves collagen I content in both nondiabetic and diabetic wounds. We then found that MMP-9 gene expression and protein content were significantly upregulated in diabetic wounds, indicating elevated proteolysis. Treatment with MSCs resulted in a decrease in MMP-9 gene expression and protein content level in diabetic wounds 3 and 7 days after wounding. Zymographic analysis indicated that MSC treatment also decreased the amount of activated MMP-9 present in diabetic wounds. Furthermore, miR-29b expression was inversely associated with MMP-9 gene expression; miR-29b expression was decreased in diabetic wounds and diabetic fibroblast. Following treatment of diabetic wounds with MSCs, as well as in diabetic fibroblasts cocultured with MSCs, miR-29b was significantly increased. These findings suggest a potential mechanism through which MSCs enhance diabetic wound healing by improving collagen I content in diabetic wounds through decreasing MMP-9 expression and increasing miR-29b expression.
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Affiliation(s)
- Junwang Xu
- Laboratory for Fetal and Regenerative Biology, University of Colorado Denver - Anschutz Medical Campus, University of Colorado School of Medicine, Aurora, Colorado.,Department of Surgery, Children's Hospital Colorado, Aurora, Colorado; and
| | - Carlos Zgheib
- Laboratory for Fetal and Regenerative Biology, University of Colorado Denver - Anschutz Medical Campus, University of Colorado School of Medicine, Aurora, Colorado.,Department of Surgery, Children's Hospital Colorado, Aurora, Colorado; and
| | - Maggie M Hodges
- Laboratory for Fetal and Regenerative Biology, University of Colorado Denver - Anschutz Medical Campus, University of Colorado School of Medicine, Aurora, Colorado.,Department of Surgery, Children's Hospital Colorado, Aurora, Colorado; and
| | - Robert C Caskey
- Department of Surgery, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania
| | - Junyi Hu
- Laboratory for Fetal and Regenerative Biology, University of Colorado Denver - Anschutz Medical Campus, University of Colorado School of Medicine, Aurora, Colorado.,Department of Surgery, Children's Hospital Colorado, Aurora, Colorado; and
| | - Kenneth W Liechty
- Laboratory for Fetal and Regenerative Biology, University of Colorado Denver - Anschutz Medical Campus, University of Colorado School of Medicine, Aurora, Colorado; .,Department of Surgery, Children's Hospital Colorado, Aurora, Colorado; and
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26
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Okonkwo UA, DiPietro LA. Diabetes and Wound Angiogenesis. Int J Mol Sci 2017; 18:E1419. [PMID: 28671607 PMCID: PMC5535911 DOI: 10.3390/ijms18071419] [Citation(s) in RCA: 502] [Impact Index Per Article: 71.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 06/10/2017] [Accepted: 06/22/2017] [Indexed: 12/16/2022] Open
Abstract
Diabetes Mellitus Type II (DM2) is a growing international health concern with no end in sight. Complications of DM2 involve a myriad of comorbidities including the serious complications of poor wound healing, chronic ulceration, and resultant limb amputation. In skin wound healing, which has definite, orderly phases, diabetes leads to improper function at all stages. While the etiology of chronic, non-healing diabetic wounds is multi-faceted, the progression to a non-healing phenotype is closely linked to poor vascular networks. This review focuses on diabetic wound healing, paying special attention to the aberrations that have been described in the proliferative, remodeling, and maturation phases of wound angiogenesis. Additionally, this review considers therapeutics that may offer promise to better wound healing outcomes.
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Affiliation(s)
- Uzoagu A Okonkwo
- Department of Microbiology and Immunology, University of Illinois at Chicago College of Medicine, Chicago, IL 60612, USA.
- Center for Wound Healing and Tissue Regeneration, University of Illinois at Chicago College of Dentistry, Chicago, IL 60612, USA.
| | - Luisa A DiPietro
- Center for Wound Healing and Tissue Regeneration, University of Illinois at Chicago College of Dentistry, Chicago, IL 60612, USA.
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27
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Ho J, Walsh C, Yue D, Dardik A, Cheema U. Current Advancements and Strategies in Tissue Engineering for Wound Healing: A Comprehensive Review. Adv Wound Care (New Rochelle) 2017; 6:191-209. [PMID: 28616360 PMCID: PMC5467128 DOI: 10.1089/wound.2016.0723] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Accepted: 02/09/2017] [Indexed: 12/20/2022] Open
Abstract
Significance: With an aging population leading to an increase in diabetes and associated cutaneous wounds, there is a pressing clinical need to improve wound-healing therapies. Recent Advances: Tissue engineering approaches for wound healing and skin regeneration have been developed over the past few decades. A review of current literature has identified common themes and strategies that are proving successful within the field: The delivery of cells, mainly mesenchymal stem cells, within scaffolds of the native matrix is one such strategy. We overview these approaches and give insights into mechanisms that aid wound healing in different clinical scenarios. Critical Issues: We discuss the importance of the biomimetic niche, and how recapitulating elements of the native microenvironment of cells can help direct cell behavior and fate. Future Directions: It is crucial that during the continued development of tissue engineering in wound repair, there is close collaboration between tissue engineers and clinicians to maintain the translational efficacy of this approach.
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Affiliation(s)
- Jasmine Ho
- UCL Division of Surgery and Interventional Sciences, UCL Institute for Orthopaedics and Musculoskeletal Sciences, University College London, London, United Kingdom
| | - Claire Walsh
- UCL Division of Surgery and Interventional Sciences, UCL Institute for Orthopaedics and Musculoskeletal Sciences, University College London, London, United Kingdom
| | - Dominic Yue
- Department of Plastic and Reconstructive Surgery, Royal Stoke University Hospital, Stoke-on-Trent, United Kingdom
| | - Alan Dardik
- The Vascular Biology and Therapeutics Program and the Department of Surgery, Yale University School of Medicine, New Haven, Connecticut
| | - Umber Cheema
- UCL Division of Surgery and Interventional Sciences, UCL Institute for Orthopaedics and Musculoskeletal Sciences, University College London, London, United Kingdom
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28
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Herter EK, Xu Landén N. Non-Coding RNAs: New Players in Skin Wound Healing. Adv Wound Care (New Rochelle) 2017; 6:93-107. [PMID: 28289554 PMCID: PMC5346954 DOI: 10.1089/wound.2016.0711] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2016] [Accepted: 11/26/2016] [Indexed: 12/22/2022] Open
Abstract
Significance: Wound healing is a basic physiological process that is utilized to keep the integrity of the skin. Impaired wound repair, such as chronic wounds and pathological scars, presents a major health and economic burden worldwide. To date, efficient targeted treatment for these wound disorders is still lacking, which is largely due to our limited understanding of the biological mechanisms underlying these diseases. Research driven around discovering new therapies for these complications is, therefore, an urgent need. Recent Advances: The vast majority of the human genome is transcribed to RNAs that lack protein-coding capacity. Intensive research in the recent decade has revealed that these non-coding RNAs (ncRNAs) function as important regulators of cellular physiology and pathology, which makes them promising therapeutic and diagnostic entities. Critical Issues: A class of short ncRNAs, microRNAs, has been found to be indispensable for all the phases of skin wound healing and plays important roles in the pathogenesis of wound complications. The role of long ncRNAs (lncRNA) in skin wound healing remains largely unexplored. Recent studies revealed the essential role of lncRNAs in epidermal differentiation and stress response, indicating their potential importance for skin wound healing, which warrants future research. Future Directions: An investigation of ncRNAs will add new layers of complexity to our understanding of normal skin wound healing as well as to the pathogenesis of wound disorders. Development of ncRNA-based biomarkers and treatments is an interesting and important avenue for future research on wound healing.
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Affiliation(s)
- Eva K. Herter
- Unit of Dermatology and Venereology, Molecular Dermatology Research Group, Department of Medicine, Center for Molecular Medicine (CMM), Karolinska Institutet, Stockholm, Sweden
| | - Ning Xu Landén
- Unit of Dermatology and Venereology, Molecular Dermatology Research Group, Department of Medicine, Center for Molecular Medicine (CMM), Karolinska Institutet, Stockholm, Sweden
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29
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Liu R, Ma X, Chen L, Yang Y, Zeng Y, Gao J, Jiang W, Zhang F, Li D, Han B, Han R, Qiu R, Huang W, Wang Y, Hao J. MicroRNA-15b Suppresses Th17 Differentiation and Is Associated with Pathogenesis of Multiple Sclerosis by Targeting O-GlcNAc Transferase. THE JOURNAL OF IMMUNOLOGY 2017; 198:2626-2639. [PMID: 28228555 DOI: 10.4049/jimmunol.1601727] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Accepted: 01/30/2017] [Indexed: 12/16/2022]
Abstract
IL-17-producing Th17 cells have gradually become considered as key factors in the pathogenesis of many autoimmune diseases, including multiple sclerosis (MS). Although the involvement of certain microRNAs in the development of MS has been reported, their role in Th17-driven autoimmunity is still poorly understood. In this study, we identified microRNA (miR)-15b as an important factor in Th17-associated effects and determined that the expression of miR-15b is significantly downregulated in MS patients and in mice with experimental autoimmune encephalomyelitis. Overexpression of miR-15b alleviated experimental autoimmune encephalomyelitis, whereas knockdown of miR-15b aggravated it. We demonstrated that miR-15b suppressed Th17 differentiation both in vivo and in vitro. We also found that O-linked N-acetylglucosamine transferase is a potential target of miR-15b, enabling it to affect the transcriptional regulation of retinoic acid-related orphan receptor γT through O-linked N-acetylglucosamine glycosylation of NF-κB. These results contribute to the importance of miR-15b in Th17 differentiation and the pathogenesis of MS.
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Affiliation(s)
- Ruiqiong Liu
- Department of Neurology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin 300052, China.,Tianjin Key Laboratory of Medical Epigenetics, Department of Biochemistry and Molecular Biology, Tianjin Medical University, Tianjin 300070, China
| | - Xiaofeng Ma
- Department of Neurology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Li Chen
- Department of Neurology, Tianjin Huanhu Hospital, Tianjin 300350, China
| | - Yang Yang
- Tianjin Key Laboratory of Medical Epigenetics, Department of Biochemistry and Molecular Biology, Tianjin Medical University, Tianjin 300070, China
| | - Yi Zeng
- Tianjin Key Laboratory of Medical Epigenetics, Department of Biochemistry and Molecular Biology, Tianjin Medical University, Tianjin 300070, China
| | - Jie Gao
- Tianjin Key Laboratory of Medical Epigenetics, Department of Biochemistry and Molecular Biology, Tianjin Medical University, Tianjin 300070, China
| | - Wei Jiang
- Department of Neurology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Fang Zhang
- Department of Neurology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Daojing Li
- Department of Neurology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Bin Han
- Department of Neurology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Ranran Han
- Department of Neurology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Rongfang Qiu
- Tianjin Key Laboratory of Medical Epigenetics, Department of Biochemistry and Molecular Biology, Tianjin Medical University, Tianjin 300070, China
| | - Wei Huang
- Tianjin Key Laboratory of Medical Epigenetics, Department of Biochemistry and Molecular Biology, Tianjin Medical University, Tianjin 300070, China
| | - Yan Wang
- Tianjin Key Laboratory of Medical Epigenetics, Department of Biochemistry and Molecular Biology, Tianjin Medical University, Tianjin 300070, China;
| | - Junwei Hao
- Department of Neurology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin 300052, China;
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30
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Jhamb S, Vangaveti VN, Malabu UH. Genetic and molecular basis of diabetic foot ulcers: Clinical review. J Tissue Viability 2016; 25:229-236. [DOI: 10.1016/j.jtv.2016.06.005] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Revised: 05/10/2016] [Accepted: 06/21/2016] [Indexed: 12/19/2022]
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31
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Zgheib C, Liechty KW. Shedding light on miR-26a: Another key regulator of angiogenesis in diabetic wound healing. J Mol Cell Cardiol 2016; 92:203-5. [PMID: 26906635 DOI: 10.1016/j.yjmcc.2016.02.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Accepted: 02/09/2016] [Indexed: 10/22/2022]
Affiliation(s)
- Carlos Zgheib
- Laboratory for Fetal and Regenerative Biology, Department of Surgery, School of Medicine, University of Colorado Denver - Anschutz Medical Campus, Children's Hospital Colorado, Aurora, CO, USA
| | - Kenneth W Liechty
- Laboratory for Fetal and Regenerative Biology, Department of Surgery, School of Medicine, University of Colorado Denver - Anschutz Medical Campus, Children's Hospital Colorado, Aurora, CO, USA.
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32
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Kalashnikova I, Das S, Seal S. Nanomaterials for wound healing: scope and advancement. Nanomedicine (Lond) 2015; 10:2593-612. [PMID: 26295361 DOI: 10.2217/nnm.15.82] [Citation(s) in RCA: 114] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Innovative methods for treating impaired and hard-to-heal wounds are needed. Novel strategies are needed for faster healing by reducing infection, moisturizing the wound, stimulating the healing mechanisms, speeding up the wound closure and reducing scar formation. In the past few years, nanotechnology has been constantly revolutionizing the treatment and management of wound care, by offering novel solutions which include but are not limited to: state-of-the-art materials, so called 'smart' biomaterials and theranostic nanoparticles. Nanotechnology-based therapy has recently announced itself as a possible next-generation therapy that is able to advance wound healing to cure chronic wounds. In this communication, the recent progress in advanced therapy for cutaneous wound healing during last 5 years using a nanotechnology-based approach is summarized.
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Affiliation(s)
- Irina Kalashnikova
- Nanoscience Technology Center, Advanced Materials Processing & Analysis Center, University of Central Florida, 12424 Research Parkway, Suite 400, Orlando, FL 32826, USA
| | - Soumen Das
- Nanoscience Technology Center, Advanced Materials Processing & Analysis Center, University of Central Florida, 12424 Research Parkway, Suite 400, Orlando, FL 32826, USA
| | - Sudipta Seal
- Nanoscience Technology Center, Advanced Materials Processing & Analysis Center, University of Central Florida, 12424 Research Parkway, Suite 400, Orlando, FL 32826, USA.,Materials Science & Engineering, College of Medicine, University of Central Florida, Orlando, FL 32816, USA
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