1
|
Wang Y, Zhou X. Exosomes and microRNAs: insights into their roles in thermal-induced skin injury, wound healing and scarring. Mol Genet Genomics 2024; 299:89. [PMID: 39317785 DOI: 10.1007/s00438-024-02183-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2024] [Accepted: 09/09/2024] [Indexed: 09/26/2024]
Abstract
A burn is a type of injury to the skin or other tissues caused by heat, chemicals, electricity, sunlight, or radiation. Burn injuries have been proven to have the potential for long-term detrimental effects on the human body. The conventional therapeutic approaches are not able to effectively and easily heal these burn wounds completely. The main potential drawbacks of these treatments include hypertrophic scarring, contracture, infection, necrosis, allergic reactions, prolonged healing times, and unsatisfactory cosmetic results. The existence of these drawbacks and limitations in current treatment approaches necessitates the need to search for and develop better, more efficient therapies. The regenerative potential of microRNAs (miRNAs) and the exosomal miRNAs derived from various cell types, especially stem cells, offer advantages that outweigh traditional burn wound healing treatment procedures. The use of multiple types of stem cells is gaining interest due to their improved healing efficiency for various applications. Stem cells have several key distinguishing characteristics, including the ability to promote more effective and rapid healing of burn wounds, reduced inflammation levels at the wound site, and less scar tissue formation and fibrosis. In this review, we have discussed the stages of wound healing, the role of exosomes and miRNAs in improving thermal-induced wounds, and the impact of miRNAs in preventing the formation of hypertrophic scars. Research studies, pre-clinical and clinical, on the use of different cell-derived exosomal miRNAs and miRNAs for the treatment of thermal burns have been documented from the year 2000 up to the current time. Studies show that the use of different cell-derived exosomal miRNAs and miRNAs can improve the healing of burn wounds. The migration of exosomal miRNAs to the site of a wound leads to inhibition of apoptosis, induction of autophagy, re-epithelialization, granulation, regeneration of skin appendages, and angiogenesis. In conclusion, this study underscores the importance of integrating miRNA and exosome research into treatment strategies for burn injuries, paving the way for novel therapeutic approaches that could significantly improve patient outcomes and recovery times.
Collapse
Affiliation(s)
- Yong Wang
- School of Medicine, Yichun University, Yichun, 336000, China.
| | - Xiufang Zhou
- School of Chemistry and Bioengineering, Yichun University, Yichun, 336000, China
| |
Collapse
|
2
|
Fani N, Moradi M, Zavari R, Parvizpour F, Soltani A, Arabpour Z, Jafarian A. Current Advances in Wound Healing and Regenerative Medicine. Curr Stem Cell Res Ther 2024; 19:277-291. [PMID: 36856176 DOI: 10.2174/1574888x18666230301140659] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 01/07/2023] [Accepted: 01/11/2023] [Indexed: 03/02/2023]
Abstract
Treating chronic wounds is a common and costly challenge worldwide. More advanced treatments are needed to improve wound healing and prevent severe complications such as infection and amputation. Like other medical fields, there have been advances in new technologies promoting wound healing potential. Regenerative medicine as a new method has aroused hope in treating chronic wounds. The technology improving wound healing includes using customizable matrices based on synthetic and natural polymers, different types of autologous and allogeneic cells at different differentiation phases, small molecules, peptides, and proteins as a growth factor, RNA interference, and gene therapy. In the last decade, various types of wound dressings have been designed. Emerging dressings include a variety of interactive/ bioactive dressings and tissue-engineering skin options. However, there is still no suitable and effective dressing to treat all chronic wounds. This article reviews different wounds and common treatments, advanced technologies and wound dressings, the advanced wound care market, and some interactive/bioactive wound dressings in the market.
Collapse
Affiliation(s)
- Nesa Fani
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Maryam Moradi
- MD-MPH Iran University of Medical Sciences, Tehran, Iran
| | - Roxana Zavari
- Iranian Tissue Bank & Research Center, Gene, Cell & Tissue Institute; Tehran University of Medical Sciences, Tehran, Iran
| | - Farzad Parvizpour
- Iranian Tissue Bank & Research Center, Gene, Cell & Tissue Institute; Tehran University of Medical Sciences, Tehran, Iran
- Department of Molecular Medicine, Faculty of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Adele Soltani
- CinnaGen Medical Biotechnology Research Center, Alborz University of Medical Sciences, Karaj, Iran
- CinnaGen Research and Production Co., Alborz, Iran
| | - Zohreh Arabpour
- Iranian Tissue Bank & Research Center, Gene, Cell & Tissue Institute; Tehran University of Medical Sciences, Tehran, Iran
| | - Arefeh Jafarian
- Iranian Tissue Bank & Research Center, Gene, Cell & Tissue Institute; Tehran University of Medical Sciences, Tehran, Iran
| |
Collapse
|
3
|
Hao Y, Yang L, Liu Y, Ye Y, Wang J, Yu C, Yan H, Xing Y, Jia Z, Hu C, Zuo H, Li Y. mmu-miR-145a-5p Accelerates Diabetic Wound Healing by Promoting Macrophage Polarization Toward the M2 Phenotype. Front Med (Lausanne) 2022; 8:775523. [PMID: 34993211 PMCID: PMC8724056 DOI: 10.3389/fmed.2021.775523] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 11/22/2021] [Indexed: 12/28/2022] Open
Abstract
Diabetic wounds are recalcitrant to healing. One of the important characteristics of diabetic trauma is impaired macrophage polarization with an excessive inflammatory response. Many studies have described the important regulatory roles of microRNAs (miRNAs) in macrophage differentiation and polarization. However, the differentially expressed miRNAs involved in wound healing and their effects on diabetic wounds remain to be further explored. In this study, we first identified differentially expressed miRNAs in the inflammation, tissue formation and reconstruction phases in wound healing using Illumina sequencing and RT-qPCR techniques. Thereafter, the expression of musculus (mmu)-miR-145a-5p (“miR-145a-5p” for short) in excisional wounds of diabetic mice was identified. Finally, expression of miR-145a-5p was measured to determine its effects on macrophage polarization in murine RAW 264.7 macrophage cells and wound healing in diabetic mice. We identified differentially expressed miRNAs at different stages of wound healing, ten of which were further confirmed by RT-qPCR. Expression of miR-145a-5p in diabetic wounds was downregulated during the tissue formation stage. Furthermore, we observed that miR-145a-5p blocked M1 macrophage polarization while promoting M2 phenotype activation in vitro. Administration of miR-145a-5p mimics during initiation of the repair phase significantly accelerated wound healing in db/db diabetic mice. In conclusion, our findings suggest that rectifying macrophage function using miR-145a-5p overexpression accelerates diabetic chronic wound healing.
Collapse
Affiliation(s)
- Yanhui Hao
- Beijing Institute of Radiation Medicine, Academy of Military Medical Sciences (AMMS), Beijing, China
| | - Leilei Yang
- Beijing Institute of Radiation Medicine, Academy of Military Medical Sciences (AMMS), Beijing, China
| | - Ying Liu
- Department of Basic Medicine, Chengde Medical College, Chengde, China
| | - Yumeng Ye
- Beijing Institute of Radiation Medicine, Academy of Military Medical Sciences (AMMS), Beijing, China
| | - Jiayu Wang
- Beijing Institute of Radiation Medicine, Academy of Military Medical Sciences (AMMS), Beijing, China
| | - Chao Yu
- Beijing Institute of Radiation Medicine, Academy of Military Medical Sciences (AMMS), Beijing, China
| | - Hua Yan
- Beijing Institute of Radiation Medicine, Academy of Military Medical Sciences (AMMS), Beijing, China
| | - Yuan Xing
- Beijing Institute of Radiation Medicine, Academy of Military Medical Sciences (AMMS), Beijing, China
| | - Zhaoqian Jia
- Beijing Institute of Radiation Medicine, Academy of Military Medical Sciences (AMMS), Beijing, China
| | - Cuicui Hu
- Academy of Life Sciences, Anhui Medical University, Hefei, China
| | - Hongyan Zuo
- Beijing Institute of Radiation Medicine, Academy of Military Medical Sciences (AMMS), Beijing, China
| | - Yang Li
- Beijing Institute of Radiation Medicine, Academy of Military Medical Sciences (AMMS), Beijing, China.,Academy of Life Sciences, Anhui Medical University, Hefei, China
| |
Collapse
|
4
|
Marofi F, Alexandrovna KI, Margiana R, Bahramali M, Suksatan W, Abdelbasset WK, Chupradit S, Nasimi M, Maashi MS. MSCs and their exosomes: a rapidly evolving approach in the context of cutaneous wounds therapy. Stem Cell Res Ther 2021; 12:597. [PMID: 34863308 PMCID: PMC8642895 DOI: 10.1186/s13287-021-02662-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 10/14/2021] [Indexed: 12/18/2022] Open
Abstract
Currently, mesenchymal stem/stromal stem cell (MSC) therapy has become a promising option for accelerating cutaneous wound healing. In vivo reports have outlined the robust competences of MSCs to offer a solid milieu by inhibition of inflammatory reactions, which in turn, enables skin regeneration. Further, due to their great potential to stimulate angiogenesis and also facilitate matrix remodeling, MSCs hold substantial potential as future therapeutic strategies in this context. The MSCs-induced wound healing is thought to mainly rely on the secretion of a myriad of paracrine factors in addition to their direct differentiation to skin-resident cells. Besides, MSCs-derived exosomes as nanoscale and closed membrane vesicles have recently been suggested as an effective and cell-free approach to support skin regeneration, circumventing the concerns respecting direct application of MSCs. The MSCs-derived exosomes comprise molecular components including lipid, proteins, DNA, microRNA, and also mRNA, which target molecular pathways and also biological activities in recipient cells (e.g., endothelial cell, keratinocyte, and fibroblast). The secreted exosome modifies macrophage activation, stimulates angiogenesis, and instigates keratinocytes and dermal fibroblast proliferations as well as migrations concurrently regulate inherent potential of myofibroblast for adjustment of turnover of the ECM. In the present review, we will focus on the recent findings concerning the application of MSCs and their derivative exosome to support wound healing and skin regeneration, with special focus on last decade in vivo reports.
Collapse
Affiliation(s)
- Faroogh Marofi
- Immunology Research Center (IRC), Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Ria Margiana
- Department of Anatomy, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
- Master’s Programme Biomedical Sciences, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
| | - Mahta Bahramali
- Biotechnology Department, University of Tehran, Tehran, Iran
| | - Wanich Suksatan
- Faculty of Nursing, HRH Princess Chulabhorn College of Medical Science, Chulabhorn Royal Academy, Bangkok, 10210 Thailand
| | - Walid Kamal Abdelbasset
- Department of Health and Rehabilitation Sciences, College of Applied Medical Sciences, Prince Sattam Bin Abdulaziz University, Al Kharj, Saudi Arabia
- Department of Physical Therapy, Kasr Al-Aini Hospital, Cairo University, Giza, Egypt
| | - Supat Chupradit
- Department of Occupational Therapy, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200 Thailand
| | | | - Marwah Suliman Maashi
- Stem Cells and Regenerative Medicine Unit at King Fahad Medical Research Centre, Jeddah, Saudi Arabia
| |
Collapse
|
5
|
Wang M, Xu X, Lei X, Tan J, Xie H. Mesenchymal stem cell-based therapy for burn wound healing. BURNS & TRAUMA 2021; 9:tkab002. [PMID: 34212055 PMCID: PMC8240555 DOI: 10.1093/burnst/tkab002] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 09/14/2020] [Indexed: 02/05/2023]
Abstract
Burns, with their high incidence and mortality rates, have a devastating effect on patients. There are still huge challenges in the management of burns. Mesenchymal stem cells (MSCs), which have multidirectional differentiation potential, have aroused interest in exploring the capacity for treating different intractable diseases due to their strong proliferation, tissue repair, immune tolerance and paracrine abilities, among other features. Currently, several animal studies have shown that MSCs play various roles and have beneficial effects in promoting wound healing, inhibiting burn inflammation and preventing the formation of pathological scars during burn healing process. The substances MSCs secrete can act on peripheral cells and promote burn repair. According to preclinical research, MSC-based treatments can effectively improve burn wound healing and reduce pain. However, due to the small number of patients and the lack of controls, treatment plans and evaluation criteria vary widely, thus limiting the value of these clinical studies. Therefore, to better evaluate the safety and effectiveness of MSC-based burn treatments, standardization of the application scheme and evaluation criteria of MSC therapy in burn treatment is required in the future. In addition, the combination of MSC pretreatment and dressing materials are also conducive to improving the therapeutic effect of MSCs on burns. In this article, we review current animal research and clinical trials based on the use of stem cell therapy for treating burns and discuss the main challenges and coping strategies facing future clinical applications.
Collapse
Affiliation(s)
- Mingyao Wang
- Laboratory of Stem Cell and Tissue Engineering, Orthopedic Research Institute, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Keyuan Road 4, Gaopeng Street, Chengdu, Sichuan 610041, China
| | - Xinxuan Xu
- Laboratory of Stem Cell and Tissue Engineering, Orthopedic Research Institute, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Keyuan Road 4, Gaopeng Street, Chengdu, Sichuan 610041, China
| | - Xiongxin Lei
- Laboratory of Stem Cell and Tissue Engineering, Orthopedic Research Institute, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Keyuan Road 4, Gaopeng Street, Chengdu, Sichuan 610041, China
| | - Jie Tan
- Laboratory of Stem Cell and Tissue Engineering, Orthopedic Research Institute, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Keyuan Road 4, Gaopeng Street, Chengdu, Sichuan 610041, China
| | - Huiqi Xie
- Laboratory of Stem Cell and Tissue Engineering, Orthopedic Research Institute, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Keyuan Road 4, Gaopeng Street, Chengdu, Sichuan 610041, China
| |
Collapse
|
6
|
Zhang Y, Liu MW, He Y, Deng N, Chen Y, Huang J, Xie W. Protective effect of resveratrol on estrogen deficiency-induced osteoporosis though attenuating NADPH oxidase 4/nuclear factor kappa B pathway by increasing miR-92b-3p expression. Int J Immunopathol Pharmacol 2021; 34:2058738420941762. [PMID: 32674689 PMCID: PMC7370339 DOI: 10.1177/2058738420941762] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Introduction: Resveratrol (RES) exhibits estrogen-like effects and has potential applications to treatment of osteoporosis caused by estrogen deficiency; however, the specific mechanism of action of RES remains unclear. Here, we examined the therapeutic effects of RES on ovariectomized (OVX) rats with osteoporosis and determined the underlying mechanism. Methods: We established an OVX rat model to study osteoporosis caused by estrogen deficiency. The treatment groups were given orally with RES (50, 100, and 200 mg/day), the estrogen group received 0.8 mg/kg E2 daily via oral route, and the sham-operated and control groups received an equivalent dose of sodium carboxymethylcellulose orally. After 12 weeks of treatment, we used real-time quantitative polymerase chain reaction (PCR) and Western blot analysis to measure the gene and protein expression of miR-92b-3p, Nox4, NF-κBp65, IκB, BMP2, Smad7, and RUNX-2 in bone tissues. Right femur structural parameters were evaluated by micro-CT. Dual-energy X-ray 4500 W was used to determine systemic bone mineral density (BMD). Enzyme-linked immunosorbent assay (ELISA) kits were used to determine the serum levels of bone alkaline phosphatase (BALP), osteoprotegerin (OPG), anti-tartrate acid phosphatase-5b (PTRA5b), and carboxylated terminal peptide (CTX-I). The rat femoral bone specimens were stained using hematoxylin and eosin for pathological examination Results: We observed increased levels of serum estrogen in both ovaries, elevated miR-92b-3p levels in bone tissues, reduced levels of Nox4, NF-κBp65, p-IκB-a, and cathepsin K, and elevated gene and protein expression of BMP2, Smad7, and RUNX-2 in the OVX rat model of osteoporosis after treatment with RES. Elevated levels of BALP, OPG, ALP, and BMD along with reduced levels of TRAP-5b and CTX-I were also observed. The structural model index (SMI) and the trabecular space (Tb. Sp) decreased, while the trabecular thickness (Tb. Th), bone volume fraction (BV/TV), trabecular number (Tb.N), and tissue bone density (Conn.D) increased, thereby improving osteoporosis induced by estrogen deficiency in both ovaries. Conclusion: Cathepsin K expression and Nox4/NF-κB signaling pathway were suppressed by the elevated expression of miR-92b-3p. This inhibition was pivotal in the protective effect of RES against osteoporosis induced by estrogen deficiency in both ovaries. Thus, RES efficiently alleviated osteoporosis induced by estrogen deficiency in rats.
Collapse
Affiliation(s)
- Ye Zhang
- Department of Traditional Chinese Medicine, The Third People's Hospital of Yunnan Province, Kunming, China
| | - Ming-Wei Liu
- Department of Emergency Medicine, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Yun He
- Department of Orthopedics, Calmett Hospital & The First Hospital of Kunming, Kunming, China
| | - Ning Deng
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Yan Chen
- Normal Human Anatomy and Histological Embryology Department, Yunnan University of Traditional Chinese Medicine, Kunming, China
| | - Jiecong Huang
- Department of Encephalopathy, Guangzhou Conghua Hospital of Traditional Chinese Medicine, Guangzhou, China
| | - Wei Xie
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| |
Collapse
|
7
|
MiR-27b-3p promotes migration and invasion in colorectal cancer cells by targeting HOXA10. Biosci Rep 2020; 39:221323. [PMID: 31763673 PMCID: PMC6900470 DOI: 10.1042/bsr20191087] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 11/18/2019] [Accepted: 11/22/2019] [Indexed: 12/18/2022] Open
Abstract
Purpose: Dysregulation of microRNAs (miRNAs) contributes to tumor progression via the regulation of the expression of specific oncogenes and tumor suppressor genes. One such example, miR-27b-3p, has reportedly been involved in tumor progression in many types of cancer. The aim of the present study was to delve into the role and the underlying mechanism of miR-27b-3p in colorectal cancer (CRC) cells. Methods: In the present study, we detected the expression level of miR-27b-3p by RT-PCR. The effect of miR-27b-3p overexpression on cell proliferation in CRC cells was evaluated by cell counting and Edu assays. Transwell migration and invasion assays were used to examine the effects of cell migration and invasion. Bioinformatics, luciferase reporter assay and western blot assay were performed to identify the target of miR-27b-3p. Results: Here, we have demonstrated that although miR-27b-3p can affect cell morphology, it has no observable effect on the proliferation of CRC cells. However, it significantly promotes the migration and invasion of CRC cells. We discovered that HOXA10 was a newly identified target of miR-27b-3p in CRC cells, as confirmed by bioinformatics, western blots and dual luciferase reporter assay. Furthermore, the overexpression of miR-27b-3p or the suppression of HOXA10 can activate the integrin β1 signaling pathway. In conclusion, our results reveal a new function of miR-27b-3p that demonstrates its ability to promote CRC cell migration and invasion by targeting the HOXA10/integrin β1 cell signal axis. Conclusion: This may provide a mechanism to explain why miR-27b-3p promotes CRC cell migration and invasion.
Collapse
|
8
|
Cheng S, Xi Z, Chen G, Liu K, Ma R, Zhou C. Extracellular vesicle-carried microRNA-27b derived from mesenchymal stem cells accelerates cutaneous wound healing via E3 ubiquitin ligase ITCH. J Cell Mol Med 2020; 24:11254-11271. [PMID: 32845084 PMCID: PMC7576224 DOI: 10.1111/jcmm.15692] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 07/07/2020] [Accepted: 07/12/2020] [Indexed: 02/06/2023] Open
Abstract
Mesenchymal stem cells (MSCs) have been highlighted as promising candidate cells in relation to cutaneous wound healing. The current study aimed to investigate whether MSC-derived extracellular vesicles (EVs) could transfer microRNA-27b (miR-27b) to influence cutaneous wound healing. The miR-27b expression was examined in the established cutaneous wound mouse model, and its correlation with the wound healing rate was evaluated by Pearson's correlation analysis. The identified human umbilical cord MSC-derived EVs were co-cultured with human immortal keratinocyte line HaCaT and human skin fibroblasts (HSFs). The mice with cutaneous wound received injections of MSC-derived EVs. The effects of EVs or miR-27b loaded on wound healing and cellular functions were analysed via gain- and loss-of-function approaches in the co-culture system. Dual-luciferase reporter gene assay was employed to verify the relationship between miR-27b and Itchy E3 ubiquitin protein ligase (ITCH). Rescue experiments were conducted to investigate the underlying mechanisms associated with the ITCH/JUNB/inositol-requiring enzyme 1α (IRE1α) axis. miR-27b was down-regulated in the mouse model, with its expression found to be positively correlated with the wound healing rate. Abundant miR-27b was detected in the MSC-derived EVs, while EV-transferred miR-27b improved cutaneous wound healing in mice and improved proliferation and migration of HaCaT cells and HSFs in vitro. As a target of miR-27b, ITCH was found to repress cell proliferation and migration. ITCH enhanced the JUNB ubiquitination and degradation, ultimately inhibiting JUNB and IRE1α expressions and restraining wound healing. Collectively, MSC-derived EVs transferring miR-27b can promote cutaneous wound healing via ITCH/JUNB/IRE1α signalling, providing insight with clinical implications.
Collapse
Affiliation(s)
- Shihuan Cheng
- Department of Rehabilitation, the First Hospital of Jilin University, Changchun, China
| | - Zhiyu Xi
- Department of Vascular Surgery, the First Hospital of Jilin University (Eastern Division), Changchun, China
| | - Guang Chen
- Department of Vascular Surgery, the First Hospital of Jilin University (Eastern Division), Changchun, China
| | - Kai Liu
- Department of Vascular Surgery, the First Hospital of Jilin University (Eastern Division), Changchun, China
| | - Renshi Ma
- Department of Vascular Surgery, the First Hospital of Jilin University (Eastern Division), Changchun, China
| | - Chen Zhou
- Personnel Department, the First Hospital of Jilin University, Changchun, China
| |
Collapse
|
9
|
Abstract
Mesenchymal stem cells (MSCs) represent a promising source of cell-based therapies for treatment of a wide variety of injuries and diseases. Their tropism and migration to the damaged sites, which are elicited by cytokines secreted from tissues around pathology, are the prerequisite for tissue repair and regeneration. Better understanding of the elicited-migration of MSCs and discovering conditions that elevate their migration ability, will help to increase their homing to pathologies and improve therapeutic efficacy. It is increasingly recognized that microRNAs are important regulators of cell migration. Here we summarize current understanding of the microRNA-regulated migration of MSCs.
Collapse
|
10
|
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.
Collapse
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.
| |
Collapse
|
11
|
miR-27b promotes angiogenesis and skin repair in scalded rats through regulating VEGF-C expression. Lasers Med Sci 2020; 35:1577-1588. [PMID: 32170506 DOI: 10.1007/s10103-020-02991-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 02/26/2020] [Indexed: 12/17/2022]
Abstract
In this study, the effects of miR-27b on angiogenesis in skin repair procedure in rats with deep II degree scald were explored. The rat model of deep II scald was established. miR-27b mimics and inhibitor were injected daily at the wound site for 3 weeks. The healing of scald was observed at 0, 3, 7, 14, and 21 days after the model was established, and the pathological changes of skin were observed by HE and Masson's trichrome stains. Skin tissues were taken 14 days after the operation; CD31 and Ki-67 immunohistochemistry was exerted to evaluate neovascularization and proliferation. Human microvascular endothelial cells (HMEC-1) cells were cultured in vitro. miR-27b mimics or inhibitor was transfected to construct over-expression or inhibition cell lines. MTT assay, scratch test, and angiogenesis test were used to evaluate cell proliferation, migration, and vascular regeneration. Finally, RT-PCR and Western blot were exerted to determine the expression of vascular endothelial growth factor C (VEGF-C), epidermal growth factor (EGF) mRNAs, and protein, respectively. Control, inhibitor, mi-NC, VEGF-C, inhibitor + si-NC, and inhibitor + VEGF-C siRNA groups were used to further analyze the mechanism of miR-27b on VEGF-C; the above experiments were repeated. In contrast to model group, miR-27b inhibitor could significantly promote the healing of scalded skin, alleviate the pathological status of scalded, and promote the angiogenesis and proliferation (p < 0.05). In vitro, miR-27b inhibitor evidently promoted cell proliferation, migration, and angiogenesis and increased the expression of VEGF-C, EGF genes, and protein, while miR-27b mimics significantly reversed the above trends. Further studies shown that downregulation of miR-27b expression can promote the proliferation, migration, and angiogenesis of HMEC-1 cells by promoting the expression of VEGF-C. miR-27b promotes angiogenesis and skin repair in scalded rats through regulating VEGF-C expression.
Collapse
|
12
|
Mousavi A. CXCL12/CXCR4 signal transduction in diseases and its molecular approaches in targeted-therapy. Immunol Lett 2019; 217:91-115. [PMID: 31747563 DOI: 10.1016/j.imlet.2019.11.007] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 11/01/2019] [Accepted: 11/15/2019] [Indexed: 02/08/2023]
Abstract
Chemokines are small molecules called "chemotactic cytokines" and regulate many processes like leukocyte trafficking, homing of immune cells, maturation, cytoskeletal rearrangement, physiology, migration during development, and host immune responses. These proteins bind to their corresponding 7-membrane G-protein-coupled receptors. Chemokines and their receptors are anti-inflammatory factors in autoimmune conditions, so consider as potential targets for neutralization in such diseases. They also express by cancer cells and function as angiogenic factors, and/or survival/growth factors that enhance tumor angiogenesis and development. Among chemokines, the CXCL12/CXCR4 axis has significantly been studied in numerous cancers and autoimmune diseases. CXCL12 is a homeostatic chemokine, which is acts as an anti-inflammatory chemokine during autoimmune inflammatory responses. In cancer cells, CXCL12 acts as an angiogenic, proliferative agent and regulates tumor cell apoptosis as well. CXCR4 has a role in leukocyte chemotaxis in inflammatory situations in numerous autoimmune diseases, as well as the high levels of CXCR4, observed in different types of human cancers. These findings suggest CXCL12/CXCR4 as a potential therapeutic target for therapy of autoimmune diseases and open a new approach to targeted-therapy of cancers by neutralizing CXCL12 and CXCR4. In this paper, we reviewed the current understanding of the role of the CXCL12/CXCR4 axis in disease pathology and cancer biology, and discuss its therapeutic implications in cancer and diseases.
Collapse
|
13
|
Sun F, Bi Q, Wang X, Liu J. Down‐regulation of mir‐27b promotes angiogenesis and fibroblast activation through activating PI3K/AKT signaling pathway. Wound Repair Regen 2019; 28:39-48. [PMID: 31587435 DOI: 10.1111/wrr.12765] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 09/11/2019] [Accepted: 09/13/2019] [Indexed: 01/11/2023]
Affiliation(s)
- Furong Sun
- Department of Burn CosmetologyThe Affiliated Yantai Yuhuangding Hospital of Qingdao University Yantai 264000 China
| | - Qingxia Bi
- Department of Burn CosmetologyThe Affiliated Yantai Yuhuangding Hospital of Qingdao University Yantai 264000 China
| | - Xueming Wang
- Department of Burn CosmetologyThe Affiliated Yantai Yuhuangding Hospital of Qingdao University Yantai 264000 China
| | - Jingyan Liu
- Department of Burn CosmetologyThe Affiliated Yantai Yuhuangding Hospital of Qingdao University Yantai 264000 China
| |
Collapse
|
14
|
Tan W, Zhang Y, Li M, Zhu X, Yang X, Wang J, Zhang S, Zhu W, Cao J, Yang H, Zhang L. miR-27a-containing Exosomes Secreted by Irradiated Skin Keratinocytes Delayed the Migration of Unirradiated Skin Fibroblasts. Int J Biol Sci 2019; 15:2240-2255. [PMID: 31592237 PMCID: PMC6775295 DOI: 10.7150/ijbs.35356] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Accepted: 07/01/2019] [Indexed: 01/01/2023] Open
Abstract
Radiation-induced bystander effect (RIBE), e.g. the biological response occurring in unirradiated cells when their neighboring cells are irradiated, is the consequence of intercellular communication between irradiated and unirradiated cells and intracellular signal transduction of these two cell populations. Although several miRNAs have been found to play an important role in RIBEs, the evidence for the regulatory effects of miRNAs on RIBEs is still limited. In this study, by using a two cell-line co-culture system, we first found that the migration of unirradiated bystander WS1 skin fibroblasts was inhibited after co-culture with irradiated HaCaT skin keratinocytes. Further study revealed that HaCaT cells exposed to α-particles and X-rays quickly showed an elevated miR-27a expression, which was essential for the induction of the bystander effect, resulting in the secretion of miR-27a-containing exosomes as a major RIBE signaling factor. Upon uptake of these exosomes, the recipient unirradiated WS1 cells displayed oxidative stress and increased miR-27a levels. Elevated levels of miR-27a that targets MMP2 in the recipient WS1 cells then led to slowed cell migration, which was dependent upon the redox status of WS1 cells. To summarize, the present study has revealed a critical role of miR-27a in every step of the induction of bystander migration inhibition of unirradiated WS1 fibroblasts co-cultured with irradiated HaCaT keratinocytes, confirming the important regulatory effects of miRNAs in RIBEs. Additionally, we provided direct evidence that RIBEs could affect wound healing.
Collapse
Affiliation(s)
- Wen Tan
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University/Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, 199 Renai Road, Suzhou Industrial Park, Suzhou, Jiangsu Province, 215123, P. R. China
| | - Yarui Zhang
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University/Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, 199 Renai Road, Suzhou Industrial Park, Suzhou, Jiangsu Province, 215123, P. R. China
| | - Mengting Li
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University/Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, 199 Renai Road, Suzhou Industrial Park, Suzhou, Jiangsu Province, 215123, P. R. China
| | - Xueting Zhu
- Department of Radiotherapy and Oncology, The Second Affiliated Hospital of Soochow University, Institute of Radiotherapy & Oncology, Soochow University, 1055 Sanxiang Road, Suzhou, Jiangsu Province, 215004, P. R. China
| | - Xuejiao Yang
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University/Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, 199 Renai Road, Suzhou Industrial Park, Suzhou, Jiangsu Province, 215123, P. R. China
| | - Jingdong Wang
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University/Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, 199 Renai Road, Suzhou Industrial Park, Suzhou, Jiangsu Province, 215123, P. R. China
| | - Shuyu Zhang
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University/Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, 199 Renai Road, Suzhou Industrial Park, Suzhou, Jiangsu Province, 215123, P. R. China
| | - Wei Zhu
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University/Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, 199 Renai Road, Suzhou Industrial Park, Suzhou, Jiangsu Province, 215123, P. R. China
| | - Jianping Cao
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University/Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, 199 Renai Road, Suzhou Industrial Park, Suzhou, Jiangsu Province, 215123, P. R. China
| | - Hongying Yang
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University/Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, 199 Renai Road, Suzhou Industrial Park, Suzhou, Jiangsu Province, 215123, P. R. China
| | - Liyuan Zhang
- Department of Radiotherapy and Oncology, The Second Affiliated Hospital of Soochow University, Institute of Radiotherapy & Oncology, Soochow University, 1055 Sanxiang Road, Suzhou, Jiangsu Province, 215004, P. R. China
| |
Collapse
|
15
|
Li G, An J, Han X, Zhang X, Wang W, Wang S. Hypermethylation of microRNA‐149 activates SDF‐1/CXCR4 to promote osteogenic differentiation of mesenchymal stem cells. J Cell Physiol 2019; 234:23485-23494. [PMID: 31206187 DOI: 10.1002/jcp.28917] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 05/12/2019] [Accepted: 05/14/2019] [Indexed: 12/12/2022]
Affiliation(s)
- Guangjie Li
- The First Hospital of Lanzhou University Lanzhou China
- Lanzhou University Second Hospital Lanzhou China
| | - Jiangdong An
- Lanzhou University Second Hospital Lanzhou China
| | - Xingwen Han
- The First Hospital of Lanzhou University Lanzhou China
| | | | - Wenjin Wang
- The First Hospital of Lanzhou University Lanzhou China
| | - Shuanke Wang
- Lanzhou University Second Hospital Lanzhou China
| |
Collapse
|
16
|
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.
Collapse
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
| |
Collapse
|
17
|
Veith AP, Henderson K, Spencer A, Sligar AD, Baker AB. Therapeutic strategies for enhancing angiogenesis in wound healing. Adv Drug Deliv Rev 2019; 146:97-125. [PMID: 30267742 DOI: 10.1016/j.addr.2018.09.010] [Citation(s) in RCA: 433] [Impact Index Per Article: 86.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2018] [Revised: 09/15/2018] [Accepted: 09/24/2018] [Indexed: 12/19/2022]
Abstract
The enhancement of wound healing has been a goal of medical practitioners for thousands of years. The development of chronic, non-healing wounds is a persistent medical problem that drives patient morbidity and increases healthcare costs. A key aspect of many non-healing wounds is the reduced presence of vessel growth through the process of angiogenesis. This review surveys the creation of new treatments for healing cutaneous wounds through therapeutic angiogenesis. In particular, we discuss the challenges and advancement that have been made in delivering biologic, pharmaceutical and cell-based therapies as enhancers of wound vascularity and healing.
Collapse
|
18
|
Hu L, Liu Y, Wang B, Wu Z, Chen Y, Yu L, Zhu J, Shen W, Chen C, Chen D, Li G, Xu L, Luo Y. MiR-539-5p negatively regulates migration of rMSCs induced by Bushen Huoxue decoction through targeting Wnt5a. Int J Med Sci 2019; 16:998-1006. [PMID: 31341413 PMCID: PMC6643123 DOI: 10.7150/ijms.33437] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Accepted: 04/24/2019] [Indexed: 12/13/2022] Open
Abstract
Bone fractures are very common, and above 5% of the fractures are impaired, leading to nonunions and severe disablilities. The traditional Chinese medicine Bushen Huoxue decoction (BHD) has been used to treat fracture in China. Our previous report has found that BHD promotes migration of rat mesenchymal stem cells (rMSCs) by activating Wnt5a signaling pathway. However, whether and how miRNAs are involved in modulating rMSCs migration induced by BHD has not been explored. In the present study, miRNA microarray analysis and further validation by real-time quantitative RT-PCR revealed that miR-539-5p was down-regulated in BHD-induced rMSCs. Transfection of miR-539-5p mimics suppressed rMSCs migration while the miR-539-5p inhibitor promoted rMSCs migration. Our results suggested that miR-539-5p was a negative regulator of migration of rMSCs induced by BHD. Target prediction analysis tools and Dual-luciferase reporter gene assay identified Wnt5a as a direct target of miR-539-5p. MiR-539-5p inhibited the expression of the Wnt5a and its downstream signaling molecules including JNK, PKC and CaMKII, which played a critical role in regulating migration of rMSCs. Taken together, our results demonstrate that miR-539-5p negatively regulates migration of rMSCs induced by BHD through targeting Wnt5a. These findings provide evidence that miR-539-5p should be considered as an important candidate target for the development of preventive or therapeutic approaches against bone nonunions.
Collapse
Affiliation(s)
- Liuchao Hu
- Department of Traumatology, The Third Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510240, P.R. China
| | - Yamei Liu
- School of Basic Medical Science, Guangzhou University of Chinese Medicine, Guangzhou 510006, P.R. China.,The Research Center of Basic Integrative Medicine, Guangzhou University of Chinese Medicine, Guangzhou 510006, P.R. China
| | - Bin Wang
- Department of Traumatology, The Third Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510240, P.R. China
| | - Zhifang Wu
- Department of Traumatology, The Third Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510240, P.R. China
| | - Yingxiong Chen
- Department of Traumatology, The Third Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510240, P.R. China
| | - Lijuan Yu
- School of Basic Medical Science, Guangzhou University of Chinese Medicine, Guangzhou 510006, P.R. China.,The Research Center of Basic Integrative Medicine, Guangzhou University of Chinese Medicine, Guangzhou 510006, P.R. China
| | - Junlang Zhu
- Department of Traumatology, The Third Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510240, P.R. China
| | - Wei Shen
- Department of Traumatology, The Third Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510240, P.R. China
| | - Chen Chen
- School of Basic Medical Science, Guangzhou University of Chinese Medicine, Guangzhou 510006, P.R. China.,The Research Center of Basic Integrative Medicine, Guangzhou University of Chinese Medicine, Guangzhou 510006, P.R. China
| | - Dongfeng Chen
- School of Basic Medical Science, Guangzhou University of Chinese Medicine, Guangzhou 510006, P.R. China.,The Research Center of Basic Integrative Medicine, Guangzhou University of Chinese Medicine, Guangzhou 510006, P.R. China
| | - Gang Li
- Department of Orthopaedics & Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong, P.R. China
| | - Liangliang Xu
- Key Laboratory of Orthopaedics & Traumatology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, P.R. China.,Laboratory of Orthopaedics & Traumatology, Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou, P.R. China
| | - Yiwen Luo
- Department of Traumatology, The Third Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510240, P.R. China
| |
Collapse
|
19
|
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.
Collapse
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.
| |
Collapse
|
20
|
Brown S, Matta A, Erwin M, Roberts S, Gruber HE, Hanley EN, Little CB, Melrose J. Cell Clusters Are Indicative of Stem Cell Activity in the Degenerate Intervertebral Disc: Can Their Properties Be Manipulated to Improve Intrinsic Repair of the Disc? Stem Cells Dev 2018; 27:147-165. [DOI: 10.1089/scd.2017.0213] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Affiliation(s)
- Sharon Brown
- Spinal Studies and ISTM (Keele University), Robert Jones and Agnes Hunt Orthopaedic Hospital, NHS Foundation Trust, Oswestry, United Kingdom
| | - Ajay Matta
- Krembil Research Institute, Toronto, Canada
| | - Mark Erwin
- Krembil Research Institute, Toronto, Canada
| | - Sally Roberts
- Spinal Studies and ISTM (Keele University), Robert Jones and Agnes Hunt Orthopaedic Hospital, NHS Foundation Trust, Oswestry, United Kingdom
| | - Helen E. Gruber
- Department of Orthopaedic Surgery, Carolinas Medical Center, Charlotte, North Carolina
| | - Edward N. Hanley
- Department of Orthopaedic Surgery, Carolinas Medical Center, Charlotte, North Carolina
| | - Christopher B. Little
- Raymond Purves Laboratory, Institute of Bone and Joint Research, Kolling Institute of Medical Research, The Royal North Shore Hospital, St. Leonards, NSW, Australia
- Sydney Medical School, Northern, The University of Sydney. Royal North Shore Hospital, St. Leonards, Australia
| | - James Melrose
- Raymond Purves Laboratory, Institute of Bone and Joint Research, Kolling Institute of Medical Research, The Royal North Shore Hospital, St. Leonards, NSW, Australia
- Sydney Medical School, Northern, The University of Sydney. Royal North Shore Hospital, St. Leonards, Australia
- Graduate School of Biomedical Engineering, University of New South Wales, Sydney, Australia
| |
Collapse
|
21
|
Li X, He L, Yue Q, Lu J, Kang N, Xu X, Wang H, Zhang H. MiR-9-5p promotes MSC migration by activating β-catenin signaling pathway. Am J Physiol Cell Physiol 2017; 313:C80-C93. [PMID: 28424168 DOI: 10.1152/ajpcell.00232.2016] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Revised: 04/13/2017] [Accepted: 04/15/2017] [Indexed: 12/13/2022]
Abstract
Mesenchymal stem cells (MSCs) have the potential to treat various tissue damages, but the very limited number of cells that migrate to the damaged region strongly restricts their therapeutic applications. Full understanding of mechanisms regulating MSC migration will help to improve their migration ability and therapeutic effects. Increasing evidence shows that microRNAs play important roles in the regulation of MSC migration. In the present study, we reported that miR-9-5p was upregulated in hepatocyte growth factor -treated MSCs and in MSCs with high migration ability. Overexpression of miR-9-5p promoted MSC migration, whereas inhibition of endogenous miR-9-5p decreased MSC migration. To elucidate the underlying mechanism, we screened the target genes of miR-9-5p and report for the first time that CK1α and GSK3β, two inhibitors of β-catenin signaling pathway, were direct targets of miR-9-5p in MSCs and that overexpression of miR-9-5p upregulated β-catenin signaling pathway. In line with these data, inhibition of β-catenin signaling pathway by FH535 decreased the miR-9-5p-promoted migration of MSCs, while activation of β-catenin signaling pathway by LiCl rescued the impaired migration of MSCs triggered by miR-9-5p inhibitor. Furthermore, the formation and distribution of focal adhesions as well as the reorganization of F-actin were affected by the expression of miR-9-5p. Collectively, these results demonstrate that miR-9-5p promotes MSC migration by upregulating β-catenin signaling pathway, shedding light on the optimization of MSCs for cell replacement therapy through manipulating the expression level of miR-9-5p.
Collapse
Affiliation(s)
- Xianyang Li
- Department of Cell Biology, Medical College of Soochow University, Jiangsu Key Laboratory of Stem Cell Research, Suzhou, China
| | - Lihong He
- Department of Cell Biology, Medical College of Soochow University, Jiangsu Key Laboratory of Stem Cell Research, Suzhou, China
| | - Qing Yue
- Department of Cell Biology, Medical College of Soochow University, Jiangsu Key Laboratory of Stem Cell Research, Suzhou, China
| | - Junhou Lu
- Department of Cell Biology, Medical College of Soochow University, Jiangsu Key Laboratory of Stem Cell Research, Suzhou, China
| | - Naixin Kang
- Department of Cell Biology, Medical College of Soochow University, Jiangsu Key Laboratory of Stem Cell Research, Suzhou, China
| | - Xiaojing Xu
- Department of Cell Biology, Medical College of Soochow University, Jiangsu Key Laboratory of Stem Cell Research, Suzhou, China
| | - Huihui Wang
- Department of Cell Biology, Medical College of Soochow University, Jiangsu Key Laboratory of Stem Cell Research, Suzhou, China
| | - Huanxiang Zhang
- Department of Cell Biology, Medical College of Soochow University, Jiangsu Key Laboratory of Stem Cell Research, Suzhou, China
| |
Collapse
|
22
|
Motegi SI, Ishikawa O. Mesenchymal stem cells: The roles and functions in cutaneous wound healing and tumor growth. J Dermatol Sci 2016; 86:83-89. [PMID: 27866791 DOI: 10.1016/j.jdermsci.2016.11.005] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Revised: 10/27/2016] [Accepted: 11/08/2016] [Indexed: 12/13/2022]
Abstract
Mesenchymal stem cells (MSCs) are bone marrow-derived non-hematopoietic progenitor cells. MSCs are able to differentiate into various types of cells, including chondrocytes, adipocytes, osteocytes, myocytes, endothelial cells, and keratinocytes. There is increasing evidence that MSCs might be located external to the vasculature, and that perivascular cells in the skin, generally called as "pericytes", might include MSCs. It has been suggested that MSCs localized around blood vessels might migrate into wounds and contribute to the restoration of injured tissues. Many studies have demonstrated that intravenous or intradermal administration of MSCs enhanced cutaneous wound healing, such as acute incisional and excisional wounds, diabetic ulcers, radiation ulcers, and burns in animals and humans. Several mechanisms of the acceleration of wound healing by MSCs have been identified, including the enhancement of angiogenesis by secretion of pro-angiogenic factors and the differentiation into endothelial cells and/or pericytes, M2 macrophages polarization, the recruitment of endogenous stem/progenitor cells, extracellular matrix production and remodeling, and immunosuppressive effects. Since the microenvironments of wounds and/or injured tissues are similar to those of tumors, MSCs also play similar roles in malignant tumors, such as the enhancement of angiogenesis, M2 macrophages polarization, and immunosuppressive effects. In addition, the mechanisms of homing of MSCs might have a commonality in the pathogenesis of wound healing and tumors. Thus, the regulating factors of MSCs, including MFG-E8, could be a therapeutic target and lead to the establishment of new therapeutic approaches for both intractable wound healing and tumors.
Collapse
Affiliation(s)
- Sei-Ichiro Motegi
- Department of Dermatology, Gunma University Graduate School of Medicine, 3-39-22, Showa, Maebashi, Gunma 371-8511, Japan.
| | - Osamu Ishikawa
- Department of Dermatology, Gunma University Graduate School of Medicine, 3-39-22, Showa, Maebashi, Gunma 371-8511, Japan
| |
Collapse
|
23
|
Transition from inflammation to proliferation: a critical step during wound healing. Cell Mol Life Sci 2016; 73:3861-85. [PMID: 27180275 PMCID: PMC5021733 DOI: 10.1007/s00018-016-2268-0] [Citation(s) in RCA: 876] [Impact Index Per Article: 109.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 04/22/2016] [Accepted: 05/06/2016] [Indexed: 02/08/2023]
Abstract
The ability to rapidly restore the integrity of a broken skin barrier is critical and is the ultimate goal of therapies for hard-to-heal-ulcers. Unfortunately effective treatments to enhance healing and reduce scarring are still lacking. A deeper understanding of the physiology of normal repair and of the pathology of delayed healing is a prerequisite for the development of more effective therapeutic interventions. Transition from the inflammatory to the proliferative phase is a key step during healing and accumulating evidence associates a compromised transition with wound healing disorders. Thus, targeting factors that impact this phase transition may offer a rationale for therapeutic development. This review summarizes mechanisms regulating the inflammation-proliferation transition at cellular and molecular levels. We propose that identification of such mechanisms will reveal promising targets for development of more effective therapies.
Collapse
|
24
|
Liu J, Luo C, Yin Z, Li P, Wang S, Chen J, He Q, Zhou J. Downregulation of let-7b promotes COL1A1 and COL1A2 expression in dermis and skin fibroblasts during heat wound repair. Mol Med Rep 2016; 13:2683-8. [PMID: 26861712 DOI: 10.3892/mmr.2016.4877] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Accepted: 01/11/2016] [Indexed: 11/06/2022] Open
Abstract
MicroRNAs (miRs), a class of non‑coding RNAs 18‑25 nucleotides in length, generally serve suppressive role in the regulation of gene expression via directly binding to the 3'‑untranslated region (UTR) of their target mRNA. Previous studies have identified several miRs to be involved in thermal injury repair. However, the role of miR let‑7b during the recovery of thermal injury, in addition to the underlying mechanisms, has not previously been studied. In the present study, the expression of let‑7b was observed to be significantly increased in skin tissue shortly following thermal injury, however, gradually reduced during the recovery of thermal injury. Notably, similar findings were observed in heat‑denatured skin fibroblasts. Furthermore, collagen, type I, alpha 1 (COL1A1) and collagen, type I, alpha 2 (COL1A2), which are associated with the synthesis of type I collagen, were identified as two targets of let‑7b in skin fibroblasts. The overexpression of let‑7b was observed to upregulate the protein expression levels of COL1A1 and COL1A2, while knockdown of let‑7b reduced the levels of COL1A1 and COL1A2 in skin fibroblasts. Furthermore, COL1A1 and COL1A2 were significantly downregulated shortly following thermal injury, while gradually upregulated during healing, in heat‑damaged skin tissue and skin fibroblasts, with the expression profiles opposite to that of let‑7b. Taken together, this suggests that the downregulation of let‑7b in heat‑damaged dermis promotes the synthesis of type I collagen and thus aids in burn wound repair.
Collapse
Affiliation(s)
- Jinyan Liu
- Department of Plastic Surgery, Third Xiangya Hospital of Central South University, Changsha, Hunan 410013, P.R. China
| | - Chengqun Luo
- Department of Plastic Surgery, Third Xiangya Hospital of Central South University, Changsha, Hunan 410013, P.R. China
| | - Zhaoqi Yin
- Department of Plastic Surgery, Third Xiangya Hospital of Central South University, Changsha, Hunan 410013, P.R. China
| | - Ping Li
- Department of Plastic Surgery, Third Xiangya Hospital of Central South University, Changsha, Hunan 410013, P.R. China
| | - Shaohua Wang
- Department of Plastic Surgery, Third Xiangya Hospital of Central South University, Changsha, Hunan 410013, P.R. China
| | - Jia Chen
- Department of Plastic Surgery, Third Xiangya Hospital of Central South University, Changsha, Hunan 410013, P.R. China
| | - Quanyong He
- Department of Plastic Surgery, Third Xiangya Hospital of Central South University, Changsha, Hunan 410013, P.R. China
| | - Jianda Zhou
- Department of Plastic Surgery, Third Xiangya Hospital of Central South University, Changsha, Hunan 410013, P.R. China
| |
Collapse
|
25
|
Bing W, Pang X, Qu Q, Bai X, Yang W, Bi Y, Bi X. Simvastatin improves the homing of BMSCs via the PI3K/AKT/miR-9 pathway. J Cell Mol Med 2016; 20:949-61. [PMID: 26871266 PMCID: PMC4831354 DOI: 10.1111/jcmm.12795] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Accepted: 12/22/2015] [Indexed: 12/21/2022] Open
Abstract
Bone marrow‐derived mesenchymal stem cells (BMSCs) have great therapeutic potential for many diseases. However, the homing of BMSCs to injury sites remains a difficult problem. Recent evidence indicates that simvastatin stimulates AKT phosphorylation, and p‐AKT affects the expression of chemokine (CXC motif) receptor‐4 (CXCR4). Therefore, simvastatin may improve the expression of CXCR4 in BMSCs, and microRNAs (miRs) may participate in this process. In this study, we demonstrated that simvastatin increased both the total and the surface expression of CXCR4 in BMSCs. Stromal cell‐derived factor‐1α (SDF‑1α)‐induced migration of BMSCs was also enhanced by simvastatin, and this action was inhibited by AMD 3100(a chemokine receptor antagonist for CXCR4). The PI3K/AKT pathway was activated by simvastatin in this process, and LY294002 reversed the overexpression of CXCR4 caused by simvastatin. MiR‐9 directly targeted CXCR4 in rat BMSCs, and simvastatin decreased miR‐9 expression. P‐AKT affected the expression of miR‐9; as the phosphorylation of AKT increased, miR‐9 expression decreased. In addition, LY294002 increased miR‐9 expression. Taken together, our results indicated that simvastatin improved the migration of BMSCs via the PI3K/AKT pathway. MiR‐9 also participated in this process, and the phosphorylation of AKT affected miR‐9 expression, suggesting that simvastatin might have beneficial effects in stem cell therapy.
Collapse
Affiliation(s)
- Weidong Bing
- Department of Cardiovascular Surgery, Qi Lu Hospital of Shandong University, Jinan, Shandong Province, China
| | - Xinyan Pang
- Department of Cardiovascular Surgery, Qi Lu Hospital of Shandong University, Jinan, Shandong Province, China
| | - Qingxi Qu
- Department of Cardiovascular Surgery, Qi Lu Hospital of Shandong University, Jinan, Shandong Province, China
| | - Xiao Bai
- Department of Cardiovascular Surgery, Qi Lu Hospital of Shandong University, Jinan, Shandong Province, China
| | - Wenwen Yang
- Department of Cardiovascular Surgery, Qi Lu Hospital of Shandong University, Jinan, Shandong Province, China
| | - Yanwen Bi
- Department of Cardiovascular Surgery, Qi Lu Hospital of Shandong University, Jinan, Shandong Province, China
| | - Xiaolu Bi
- School of Life Science of Shandong University, Jinan, Shandong Province, China
| |
Collapse
|
26
|
Zhou J, Zhang X, Liang P, Ren L, Zeng J, Zhang M, Zhang P, Huang X. Protective role of microRNA-29a in denatured dermis and skin fibroblast cells after thermal injury. Biol Open 2016; 5:211-9. [PMID: 26794609 PMCID: PMC4810739 DOI: 10.1242/bio.014910] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Our previous study has suggested that downregulated microRNA (miR)-29a in denatured dermis might be involved in burn wound healing. However, the exact role of miR-29a in healing of burn injury still remains unclear. Here, we found that expression of miR-29a was notably upregulated in denatured dermis tissues and skin fibroblast cells after thermal injury, and thereafter gradually downregulated compared with control group. By contrast, the expression of collagen, type I, alpha 2 (COL1A2) and vascular endothelial growth factor (VEGF-A) were first reduced and subsequently upregulated in denatured dermis tissues and skin fibroblast cells after thermal injury. We further identified COL1A2 as a novel target of miR-29a, which is involved in type I collagen synthesis, and showed that miR-29a negatively regulated the expression level of COL1A2 in skin fibroblast cells. In addition, VEGF-A, another target gene of miR-29a, was also negatively mediated by miR-29a in skin fibroblast cells. Inhibition of miR-29a expression significantly promoted the proliferation and migration of skin fibroblast cells after thermal injury, and knockdown of COL1A2 and VEGF-A reversed the effects of miR-29a on the proliferation and migration of skin fibroblast cells. Furthermore, we found that Notch2/Jagged2 signaling was involved in miR-29a response to burn wound healing. Our findings suggest that downregulated miR-29a in denatured dermis may help burn wound healing in the later phase, probably via upregulation of COL1A2 and VEGF-A expression, which can further enhance type I collagen synthesis and angiogenesis. Summary: Inhibition of miR-29a can promote the proliferation and migration of skin fibroblast cells after thermal injury, and upregulate the production of COL1A2 and VEGF-A to further enhance the collagen synthesis and angiogenesis in skin and help burn wound healing in the later phase.
Collapse
Affiliation(s)
- Jie Zhou
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, People's Republic of China
| | - Xipeng Zhang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, People's Republic of China
| | - Pengfei Liang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, People's Republic of China
| | - Licheng Ren
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, People's Republic of China
| | - Jizhang Zeng
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, People's Republic of China
| | - Minghua Zhang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, People's Republic of China
| | - Pihong Zhang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, People's Republic of China
| | - Xiaoyuan Huang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, People's Republic of China
| |
Collapse
|
27
|
Ning MS, Andl T. Concise review: custodians of the transcriptome: how microRNAs guard stemness in squamous epithelia. Stem Cells 2016; 33:1047-54. [PMID: 25524325 DOI: 10.1002/stem.1922] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2014] [Accepted: 11/14/2014] [Indexed: 12/19/2022]
Abstract
At the core of every dynamic epithelium resides a population of carefully regulated stem cells ensuring its maintenance and balance. The complex mammalian epidermis is no exception to this rule. The last decade has delivered a wealth of knowledge regarding the biology of adult stem cells, but questions still remain regarding the intricate details of their function and maintenance. To help address these gaps, we turn to the small, single-stranded RNA molecules known as microRNAs. Since their discovery, microRNAs have provided us with novel insights and ground-breaking impulses to enhance our understanding of the biological sciences. Due to their unique role in post-transcriptional regulation, microRNAs are essential to cutaneous biology as well as the epidermal stem cell. By serving as buffers to balance between epithelial stemness, proliferation, and differentiation, microRNAs play essential roles in the maintenance of cutaneous stem cells and their transition out of the stem cell compartment. Following an updated overview of microRNA biology, we summarize the current knowledge of the role of microRNAs in cutaneous stem cells, focusing on three major players that have dominated the recent literature: miR-205, miR-203, and miR-125b. We then review clinical applications, discussing the potential of microRNAs as therapeutic targets in regenerative and oncological stem cell-based medicine.
Collapse
Affiliation(s)
- Matthew S Ning
- Division of Dermatology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | | |
Collapse
|
28
|
Lü MH, Tang B, Zeng S, Hu CJ, Xie R, Wu YY, Wang SM, He FT, Yang SM. Long noncoding RNA BC032469, a novel competing endogenous RNA, upregulates hTERT expression by sponging miR-1207-5p and promotes proliferation in gastric cancer. Oncogene 2015; 35:3524-34. [PMID: 26549025 DOI: 10.1038/onc.2015.413] [Citation(s) in RCA: 151] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2015] [Revised: 08/18/2015] [Accepted: 09/28/2015] [Indexed: 12/14/2022]
Abstract
Long noncoding RNAs (lncRNAs) are emerging as new players in gene regulation and are associated with the development of cancers. To investigate the important role and mechanism of lncRNAs in the progression of gastric cancer, we screened lncRNAs in gastric cancer tissues and corresponding adjacent tissues, and assessed the effects on gastric cancer. Here, we report that BC032469, a novel lncRNA, expressed highly in gastric cancer tissues, and the upregulation was clinically associated with larger tumor size, poor differentiation and shorter survival of gastric cancer patients. Downregulation of BC032469 resulted in a significant inhibition of proliferation in vitro and in vivo. Mechanistically, BC032469 could directly bind to miR-1207-5p and effectively functioned as a sponge for miR-1207-5p to modulate the derepression of hTERT. Thus, BC032469 may function as a ceRNA to impair miR-1207-5p-dependent hTERT downregulation, suggesting that it may be clinically valuable as a poor prognostic biomarker of gastric cancer.
Collapse
Affiliation(s)
- M-H Lü
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing, China.,Department of Gastroenterology, The Affiliated Hospital of Luzhou Medical College, Luzhou, China
| | - B Tang
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - S Zeng
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - C-J Hu
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - R Xie
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Y-Y Wu
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - S-M Wang
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - F-T He
- Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Third Military Medical University, Chongqing, China
| | - S-M Yang
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| |
Collapse
|
29
|
Hocking AM. The Role of Chemokines in Mesenchymal Stem Cell Homing to Wounds. Adv Wound Care (New Rochelle) 2015; 4:623-630. [PMID: 26543676 DOI: 10.1089/wound.2014.0579] [Citation(s) in RCA: 109] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Significance: Mesenchymal stem cells (MSCs) are being administered to cutaneous wounds with the goal of accelerating wound closure and promoting regeneration instead of scar formation. An ongoing challenge for cell-based therapies is achieving effective and optimal targeted delivery and engraftment at the site of injury. Contributing to this challenge is our incomplete understanding of endogenous MSC homing to sites of injury. Recent Advances: Chemokines and their receptors are now recognized as important mediators of stem cell homing. To date, the most studied chemokine-chemokine receptor axis in MSC homing to wounds is CXCL12-CXCR4 but recent work suggests that CCL27-CCR10 and CCL21-CCR7 may also be involved. Critical Issues: Strategies to enhance chemokine-mediated MSC homing to wounds are using a variety of approaches to amplify the chemokine signal at the wound site and/or overexpress specific chemokine receptors on the surface of the MSC. Future Directions: Harnessing chemokine signaling may enhance the therapeutic effects of stem cell therapy by increasing the number of both exogenous and endogenous stem cells recruited to the site of injury. Alternatively, chemokine-based therapies directly targeting endogenous stem cells may circumvent the need for the time-consuming and costly isolation and expansion of autologous stem cells prior to therapeutic administration.
Collapse
Affiliation(s)
- Anne M. Hocking
- Department of Surgery, University of Washington, Seattle, Washington
| |
Collapse
|
30
|
Pourrajab F, Vakili Zarch A, Hekmatimoghaddam S, Zare-Khormizi MR. MicroRNAs; easy and potent targets in optimizing therapeutic methods in reparative angiogenesis. J Cell Mol Med 2015; 19:2702-14. [PMID: 26416208 PMCID: PMC4687703 DOI: 10.1111/jcmm.12669] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2015] [Accepted: 07/15/2015] [Indexed: 12/14/2022] Open
Abstract
The age‐related senescence of adult tissues is associated with the decreased level of angiogenic capability and with the development of a degenerative disease such as atherosclerosis which thereafter result in the deteriorating function of multiple systems. Findings indicate that tissue senescence not only diminishes repair processes but also promotes atherogenesis, serving as a double‐edged sword in the development and prognosis of ischaemia‐associated diseases. Evidence evokes microRNAs (miRNAs) as molecular switchers that underlie cellular events in different tissues. Here, miRNAs would promote new potential targets for optimizing therapeutic methods in blood flow recovery to the ischaemic area. Effectively beginning an ischaemia therapy, a more characteristic of miRNA changes in adult tissues is prerequisite and in the forefront. It may also be a preliminary phase in treatment strategies by stem cell‐based therapy.
Collapse
Affiliation(s)
- Fatemeh Pourrajab
- School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.,Department of Clinical Biochemistry and Molecular Biology, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Abbas Vakili Zarch
- School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Seyedhossein Hekmatimoghaddam
- Department of Laboratory Sciences, School of Paramedicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | | |
Collapse
|
31
|
Mori M, Matsubara K, Matsubara Y, Uchikura Y, Hashimoto H, Fujioka T, Matsumoto T. Stromal Cell-Derived Factor-1α Plays a Crucial Role Based on Neuroprotective Role in Neonatal Brain Injury in Rats. Int J Mol Sci 2015; 16:18018-32. [PMID: 26251894 PMCID: PMC4581233 DOI: 10.3390/ijms160818018] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Revised: 07/08/2015] [Accepted: 07/23/2015] [Indexed: 01/07/2023] Open
Abstract
Owing to progress in perinatal medicine, the survival of preterm newborns has markedly increased. However, the incidence of cerebral palsy has risen in association with increased preterm birth. Cerebral palsy is largely caused by cerebral hypoxic ischemia (HI), for which there are no effective medical treatments. We evaluated the effects of stromal cell-derived factor-1α (SDF-1α) on neonatal brain damage in rats. Left common carotid (LCC) arteries of seven-day-old Wistar rat pups were ligated, and animals were exposed to hypoxic gas to cause cerebral HI. Behavioral tests revealed that the memory and spatial perception abilities were disturbed in HI animals, and that SDF-1α treatment improved these cognitive functions. Motor coordination was also impaired after HI but was unimproved by SDF-1α treatment. SDF-1α reduced intracranial inflammation and induced cerebral remyelination, as indicated by the immunohistochemistry results. These data suggest that SDF-1α specifically influences spatial perception abilities in neonatal HI encephalopathy.
Collapse
Affiliation(s)
- Miki Mori
- Department of Obstetrics and Gynecology, Ehime University School of Medicine, Toon, Ehime 791-0295, Japan.
| | - Keiichi Matsubara
- Department of Obstetrics and Gynecology, Ehime University School of Medicine, Toon, Ehime 791-0295, Japan.
| | - Yuko Matsubara
- Department of Obstetrics and Gynecology, Ehime University School of Medicine, Toon, Ehime 791-0295, Japan.
| | - Yuka Uchikura
- Department of Obstetrics and Gynecology, Ehime University School of Medicine, Toon, Ehime 791-0295, Japan.
| | - Hisashi Hashimoto
- Department of Obstetrics and Gynecology, Ehime University School of Medicine, Toon, Ehime 791-0295, Japan.
| | - Toru Fujioka
- Department of Obstetrics and Gynecology, Ehime University School of Medicine, Toon, Ehime 791-0295, Japan.
| | - Takashi Matsumoto
- Department of Obstetrics and Gynecology, Ehime University School of Medicine, Toon, Ehime 791-0295, Japan.
| |
Collapse
|
32
|
The Use of Stem Cells in Burn Wound Healing: A Review. BIOMED RESEARCH INTERNATIONAL 2015; 2015:684084. [PMID: 26236731 PMCID: PMC4508388 DOI: 10.1155/2015/684084] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Revised: 01/21/2015] [Accepted: 01/22/2015] [Indexed: 01/15/2023]
Abstract
Burn wound healing involves a series of complex processes which are subject to intensive investigations to improve the outcomes, in particular, the healing time and the quality of the scar. Burn injuries, especially severe ones, are proving to have devastating effects on the affected patients. Stem cells have been recently applied in the field to promote superior healing of the wounds. Not only have stem cells been shown to promote better and faster healing of the burn wounds, but also they have decreased the inflammation levels with less scar progression and fibrosis. This review aims to highlight the beneficial therapeutic effect of stem cells in burn wound healing and to discuss the involved pathways and signaling molecules. The review covers various types of burn wound healing like skin and corneal burns, along with the alternative recent therapies being studied in the field of burn wound healing. The current reflection of the attitudes of people regarding the use of stem cells in burn wound healing is also stated.
Collapse
|
33
|
Systemic high-mobility group box 1 administration suppresses skin inflammation by inducing an accumulation of PDGFRα(+) mesenchymal cells from bone marrow. Sci Rep 2015; 5:11008. [PMID: 26046579 PMCID: PMC4457135 DOI: 10.1038/srep11008] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Accepted: 04/29/2015] [Indexed: 12/21/2022] Open
Abstract
High-mobility group box 1 (HMGB1) mobilizes platelet-derived growth factor receptor alpha-positive (PDGFRα+) mesenchymal cells from bone marrow (BM) into circulation. However, whether HMGB1-induced endogenous PDGFRα+ mesenchymal cells stimulate skin regeneration has been unclear. Here, we investigated the functions of the HMGB1/BM-PDGFRα+ mesenchymal cell axis in the regeneration of mouse skin grafts. We found that intravenous HMGB1 administration induced an accumulation of endogenous BM-PDGFRα+ mesenchymal cells followed by significant inflammatory suppression in the grafts. In contrast, mice with reduced BM-PDGFRα+ mesenchymal cells showed massive inflammation of the grafts compared to mice that had normal levels of these cells even after HMGB1 administration, suggesting that BM-PDGFRα+ mesenchymal cells contribute to the HMGB1-induced anti-inflammatory effect. We also found that intravenously administered HMGB1 augmented the local migration of BM-PDGFRα+ mesenchymal cells from circulation to skin graft by inducing the expression of CXCR4, an SDF-1 receptor, on these cells. Finally, we showed the therapeutic activity of the HMGB1/BM-PDGFRα+ mesenchymal cell axis in an allergic contact dermatitis model. The results illustrated the contribution of the HMGB1/BM-PDGFRα+ mesenchymal cell axis in suppressing the inflammation of injured/inflamed skin. These findings may provide future perspectives on the use of HMGB1-based medicines for intractable diseases.
Collapse
|
34
|
Guo F, Wang Y, Liu J, Mok SC, Xue F, Zhang W. CXCL12/CXCR4: a symbiotic bridge linking cancer cells and their stromal neighbors in oncogenic communication networks. Oncogene 2015; 35:816-26. [DOI: 10.1038/onc.2015.139] [Citation(s) in RCA: 254] [Impact Index Per Article: 28.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Revised: 03/28/2015] [Accepted: 03/30/2015] [Indexed: 02/07/2023]
|
35
|
Moura J, Børsheim E, Carvalho E. The Role of MicroRNAs in Diabetic Complications-Special Emphasis on Wound Healing. Genes (Basel) 2014; 5:926-56. [PMID: 25268390 PMCID: PMC4276920 DOI: 10.3390/genes5040926] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2014] [Revised: 09/05/2014] [Accepted: 09/10/2014] [Indexed: 12/19/2022] Open
Abstract
Overweight and obesity are major problems in today’s society, driving the prevalence of diabetes and its related complications. It is important to understand the molecular mechanisms underlying the chronic complications in diabetes in order to develop better therapeutic approaches for these conditions. Some of the most important complications include macrovascular abnormalities, e.g., heart disease and atherosclerosis, and microvascular abnormalities, e.g., retinopathy, nephropathy and neuropathy, in particular diabetic foot ulceration. The highly conserved endogenous small non-coding RNA molecules, the micro RNAs (miRNAs) have in recent years been found to be involved in a number of biological processes, including the pathogenesis of disease. Their main function is to regulate post-transcriptional gene expression by binding to their target messenger RNAs (mRNAs), leading to mRNA degradation, suppression of translation or even gene activation. These molecules are promising therapeutic targets and demonstrate great potential as diagnostic biomarkers for disease. This review aims to describe the most recent findings regarding the important roles of miRNAs in diabetes and its complications, with special attention given to the different phases of diabetic wound healing.
Collapse
Affiliation(s)
- João Moura
- Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra 3004-517, Portugal.
| | - Elisabet Børsheim
- Arkansas Children's Nutrition Center, Little Rock, Arkansas, AR 72202, USA.
| | - Eugenia Carvalho
- Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra 3004-517, Portugal.
| |
Collapse
|
36
|
Shin JH, Park YM, Kim DH, Moon GJ, Bang OY, Ohn T, Kim HH. Ischemic brain extract increases SDF-1 expression in astrocytes through the CXCR2/miR-223/miR-27b pathway. BIOCHIMICA ET BIOPHYSICA ACTA-GENE REGULATORY MECHANISMS 2014; 1839:826-36. [PMID: 24999035 DOI: 10.1016/j.bbagrm.2014.06.019] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Revised: 06/19/2014] [Accepted: 06/26/2014] [Indexed: 11/30/2022]
Abstract
Ischemic cerebral stroke is one of the leading global causes of mortality and morbidity. Ischemic preconditioning (IPC) refers to a sublethal ischemia and resulting in tolerance to subsequent severe ischemic injury. Although several pathways are reportedly involved in IPC-mediated neuroprotection, the functional role of astrocytes is not fully understood. Stromal cell-derived factor-1 (SDF-1), a CXC chemokine produced mainly in astrocytes, is a ligand for chemokine receptor CXCR4. SDF-1 is reported to play a critical role in neuroprotection after stroke by mediating the migration of neuronal progenitor cells. We hypothesized that stimuli derived from ischemic brain were involved in the protective effects of IPC. To investigate this hypothesis, the mechanism in which ischemic brain extract (IBE) induced SDF-1 expression was investigated in C6 astrocytoma cells. IBE treatment of C6 cells increased SDF-1 expression compared to that in untreated or normal brain extract (NBE)-treated cells by downregulating SDF-1 targeting miRNA, miR-27b. MiR-223 was inversely upregulated in IBE-treated cells; overexpression of miR-223 decreased the expression of miR-27b by suppressing IKKα expression. Analysis of cytokine array data revealed an IBE associated enhanced expression of CINC-1 (CXCL1) and LIX1 (CXCL5). Knockdown or inhibition of their receptor, CXCR2, abolished IBE-mediated increased expression of SDF-1. These results were confirmed in primary cultured astrocytes. Taken together, the data demonstrate that IBE-elicited signals increase SDF-1 expression through the CXCR2/miR-223/miR-27b pathway in C6 astrocytoma cells and primary astrocytes, supporting the view that increased expression of SDF-1 by ischemic insults is a possible mechanism underlying therapeutic application of IPC.
Collapse
Affiliation(s)
- Jin Hee Shin
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul 135-710, South Korea; Samsung Biomedical Research Institute, Institute for Future Medicine, Samsung Medical Center, Seoul 135-710, South Korea
| | - Young Mi Park
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul 135-710, South Korea; Samsung Biomedical Research Institute, Institute for Future Medicine, Samsung Medical Center, Seoul 135-710, South Korea
| | - Dong Hee Kim
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul 135-710, South Korea
| | - Gyeong Joon Moon
- Samsung Biomedical Research Institute, Institute for Future Medicine, Samsung Medical Center, Seoul 135-710, South Korea; Medical Research Institute, Sungkyunkwan University School of Medicine, Suwon 440-746, South Korea
| | - Oh Young Bang
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul 135-710, South Korea; Department of Neurology, Samsung Medical Center, Seoul 135-710, South Korea
| | - Takbum Ohn
- Department of Cellular and Molecular Medicine, College of Medicine, Chosun University, Gwangju 501-759, South Korea
| | - Hyeon Ho Kim
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul 135-710, South Korea; Samsung Biomedical Research Institute, Institute for Future Medicine, Samsung Medical Center, Seoul 135-710, South Korea.
| |
Collapse
|