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Li Y, Xu C, Lei C. The Delivery and Activation of Growth Factors Using Nanomaterials for Bone Repair. Pharmaceutics 2023; 15:pharmaceutics15031017. [PMID: 36986877 PMCID: PMC10052849 DOI: 10.3390/pharmaceutics15031017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 03/17/2023] [Accepted: 03/20/2023] [Indexed: 03/30/2023] Open
Abstract
Bone regeneration is a comprehensive process that involves different stages, and various growth factors (GFs) play crucial roles in the entire process. GFs are currently widely used in clinical settings to promote bone repair; however, the direct application of GFs is often limited by their fast degradation and short local residual time. Additionally, GFs are expensive, and their use may carry risks of ectopic osteogenesis and potential tumor formation. Nanomaterials have recently shown great promise in delivering GFs for bone regeneration, as they can protect fragile GFs and control their release. Moreover, functional nanomaterials can directly activate endogenous GFs, modulating the regeneration process. This review provides a summary of the latest advances in using nanomaterials to deliver exogenous GFs and activate endogenous GFs to promote bone regeneration. We also discuss the potential for synergistic applications of nanomaterials and GFs in bone regeneration, along with the challenges and future directions that need to be addressed.
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Affiliation(s)
- Yiwei Li
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Chun Xu
- School of Dentistry, The University of Queensland, Brisbane, QLD 4006, Australia
| | - Chang Lei
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD 4072, Australia
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2
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Mukherjee P, Peng CY, McGuire T, Hwang JW, Puritz CH, Pathak N, Patino CA, Braun R, Kessler JA, Espinosa HD. Single cell transcriptomics reveals reduced stress response in stem cells manipulated using localized electric fields. Mater Today Bio 2023; 19:100601. [PMID: 37063248 PMCID: PMC10102005 DOI: 10.1016/j.mtbio.2023.100601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 02/11/2023] [Accepted: 03/03/2023] [Indexed: 03/07/2023] Open
Abstract
Membrane disruption using Bulk Electroporation (BEP) is a widely used non-viral method for delivering biomolecules into cells. Recently, its microfluidic counterpart, Localized Electroporation (LEP), has been successfully used for several applications ranging from reprogramming and engineering cells for therapeutic purposes to non-destructive sampling from live cells for temporal analysis. However, the side effects of these processes on gene expression, that can affect the physiology of sensitive stem cells are not well understood. Here, we use single cell RNA sequencing (scRNA-seq) to investigate the effects of BEP and LEP on murine neural stem cell (NSC) gene expression. Our results indicate that unlike BEP, LEP does not lead to extensive cell death or activation of cell stress response pathways that may affect their long-term physiology. Additionally, our demonstrations show that LEP is suitable for multi-day delivery protocols as it enables better preservation of cell viability and integrity as compared to BEP.
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3
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Kou L, Jiang X, Lin X, Huang H, Wang J, Yao Q, Chen R. Matrix Metalloproteinase Inspired Therapeutic Strategies for Bone Diseases. Curr Pharm Biotechnol 2021; 22:451-467. [PMID: 32603279 DOI: 10.2174/1389201021666200630140735] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 04/18/2020] [Accepted: 06/11/2020] [Indexed: 01/18/2023]
Abstract
Matrix Metalloproteinases (MMPs), as a family of zinc-containing enzymes, show the function of decomposing Extracellular Matrix (ECM) and participate in the physiological processes of cell migration, growth, inflammation, and metabolism. Clinical and experimental studies have indicated that MMPs play an essential role in tissue injury and repair as well as tumor diagnosis, metastasis, and prognosis. An increasing number of researchers have paid attention to their functions and mechanisms in bone health and diseases. The present review focuses on MMPs-inspired therapeutic strategies for the treatment of bone-related diseases. We introduce the role of MMPs in bone diseases, highlight the MMPs-inspired therapeutic options, and posit MMPs as a trigger for smart cell/drug delivery.
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Affiliation(s)
- Longfa Kou
- Department of Pharmacy, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xinyu Jiang
- Department of Pharmacy, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xinlu Lin
- Department of Pharmacy, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Huirong Huang
- Department of Pharmacy, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Jun Wang
- Department of Pharmacy, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Qing Yao
- School of Pharmaceutical Sciences, Wenzhou Medical University, Chashan, Wenzhou, China
| | - Ruijie Chen
- Department of Pharmacy, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
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Soltani A, Jafarian A, Allameh A. The Predominant microRNAs in β-cell Clusters for Insulin Regulation and Diabetic Control. Curr Drug Targets 2021; 21:722-734. [PMID: 31886749 DOI: 10.2174/1389450121666191230145848] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 12/04/2019] [Accepted: 12/04/2019] [Indexed: 12/20/2022]
Abstract
micro (mi)-RNAs are vital regulators of multiple processes including insulin signaling pathways and glucose metabolism. Pancreatic β-cells function is dependent on some miRNAs and their target mRNA, which together form a complex regulative network. Several miRNAs are known to be directly involved in β-cells functions such as insulin expression and secretion. These small RNAs may also play significant roles in the fate of β-cells such as proliferation, differentiation, survival and apoptosis. Among the miRNAs, miR-7, miR-9, miR-375, miR-130 and miR-124 are of particular interest due to being highly expressed in these cells. Under diabetic conditions, although no specific miRNA profile has been noticed, the expression of some miRNAs and their target mRNAs are altered by posttranscriptional mechanisms, exerting diverse signs in the pathobiology of various diabetic complications. The aim of this review article is to discuss miRNAs involved in the process of stem cells differentiation into β-cells, resulting in enhanced β-cell functions with respect to diabetic disorders. This paper will also look into the impact of miRNA expression patterns on in vitro proliferation and differentiation of β-cells. The efficacy of the computational genomics and biochemical analysis to link the changes in miRNA expression profiles of stem cell-derived β-cells to therapeutically relevant outputs will be discussed as well.
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Affiliation(s)
- Adele Soltani
- Department of Clinical Biochemistry, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Arefeh Jafarian
- Immunology, Asthma, and Allergy Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Abdolamir Allameh
- Department of Clinical Biochemistry, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
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5
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Yu B, Dong B, He J, Huang H, Huang J, Wang Y, Liang J, Zhang J, Qiu Y, Shen J, Shuai X, Tao J, Xia W. Bimodal Imaging-Visible Nanomedicine Integrating CXCR4 and VEGFa Genes Directs Synergistic Reendothelialization of Endothelial Progenitor Cells. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:2001657. [PMID: 33344118 PMCID: PMC7740091 DOI: 10.1002/advs.202001657] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 09/08/2020] [Indexed: 06/01/2023]
Abstract
A major challenge to treat vascular endothelial injury is the restoration of endothelium integrity in which endothelial progenitor cells (EPCs) plays a central role. Transplantation of EPCs as a promising therapeutic means is subject to two interrelated processes, homing and differentiation of EPCs in vivo, and thus a lack of either one may greatly affect the outcome of EPC-based therapy. Herein, a polymeric nanocarrier is applied for the codelivery of CXCR4 and VEGFa genes to simultaneously promote the migration and differentiation of EPCs. Moreover, MRI T2 contrast agent SPION and NIR dye Cy7.5 are also loaded into the nanocarrier in order to track EPCs in vivo. Based on the synergistic effect of the two codelivered genes, an improved reendothelialization of EPCs is achieved in a rat carotid denuded model. The results show the potential of this bimodal imaging-visible nanomedicine to improve the performance of EPCs in repairing arterial injury, which may push forward the stem cell-based therapy of cardiovascular disease.
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Affiliation(s)
- Bingbo Yu
- Department of Hypertension and Vascular DiseaseThe First Affiliated Hospital of Sun Yat‐sen UniversityNational‐Guangdong Joint Engineering Laboratory for Diagnosis and Treatment of Vascular DiseasesKey Laboratory on Assisted CirculationMinistry of HealthGuangzhou510080China
| | - Bing Dong
- Department of Hypertension and Vascular DiseaseThe First Affiliated Hospital of Sun Yat‐sen UniversityNational‐Guangdong Joint Engineering Laboratory for Diagnosis and Treatment of Vascular DiseasesKey Laboratory on Assisted CirculationMinistry of HealthGuangzhou510080China
| | - Jiang He
- Department of Hypertension and Vascular DiseaseThe First Affiliated Hospital of Sun Yat‐sen UniversityNational‐Guangdong Joint Engineering Laboratory for Diagnosis and Treatment of Vascular DiseasesKey Laboratory on Assisted CirculationMinistry of HealthGuangzhou510080China
| | - Hui Huang
- Department of CardiovascularThe Eighth Affiliated Hospital of Sun Yat‐sen UniversityShenzhen518000China
| | - Jinsheng Huang
- PCFM Lab of Ministry of EducationSchool of Material Science and EngineeringSun Yat‐sen UniversityGuangzhou510275China
| | - Yong Wang
- PCFM Lab of Ministry of EducationSchool of Material Science and EngineeringSun Yat‐sen UniversityGuangzhou510275China
| | - Jianwen Liang
- Department of CardiovascularThe Eighth Affiliated Hospital of Sun Yat‐sen UniversityShenzhen518000China
| | - Jianning Zhang
- Department of Hypertension and Vascular DiseaseThe First Affiliated Hospital of Sun Yat‐sen UniversityNational‐Guangdong Joint Engineering Laboratory for Diagnosis and Treatment of Vascular DiseasesKey Laboratory on Assisted CirculationMinistry of HealthGuangzhou510080China
| | - Yumin Qiu
- Department of Hypertension and Vascular DiseaseThe First Affiliated Hospital of Sun Yat‐sen UniversityNational‐Guangdong Joint Engineering Laboratory for Diagnosis and Treatment of Vascular DiseasesKey Laboratory on Assisted CirculationMinistry of HealthGuangzhou510080China
| | - Jun Shen
- Department of RadiologySun Yat‐sen Memorial HospitalSun Yat‐sen UniversityGuangzhou510120China
| | - Xintao Shuai
- Department of Hypertension and Vascular DiseaseThe First Affiliated Hospital of Sun Yat‐sen UniversityNational‐Guangdong Joint Engineering Laboratory for Diagnosis and Treatment of Vascular DiseasesKey Laboratory on Assisted CirculationMinistry of HealthGuangzhou510080China
- PCFM Lab of Ministry of EducationSchool of Material Science and EngineeringSun Yat‐sen UniversityGuangzhou510275China
| | - Jun Tao
- Department of Hypertension and Vascular DiseaseThe First Affiliated Hospital of Sun Yat‐sen UniversityNational‐Guangdong Joint Engineering Laboratory for Diagnosis and Treatment of Vascular DiseasesKey Laboratory on Assisted CirculationMinistry of HealthGuangzhou510080China
| | - Wenhao Xia
- Department of Hypertension and Vascular DiseaseThe First Affiliated Hospital of Sun Yat‐sen UniversityNational‐Guangdong Joint Engineering Laboratory for Diagnosis and Treatment of Vascular DiseasesKey Laboratory on Assisted CirculationMinistry of HealthGuangzhou510080China
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6
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Bu W, Xu X, Wang Z, Jin N, Liu L, Liu J, Zhu S, Zhang K, Jelinek R, Zhou D, Sun H, Yang B. Ascorbic Acid-PEI Carbon Dots with Osteogenic Effects as miR-2861 Carriers to Effectively Enhance Bone Regeneration. ACS APPLIED MATERIALS & INTERFACES 2020; 12:50287-50302. [PMID: 33121247 DOI: 10.1021/acsami.0c15425] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Nucleic acid transfer has shown significant potential in the treatment of bone damage because of its long lasting local effect and lower cost. Nonviral vectors, such as nanomaterials, with higher biocompatibility are increasedly applied in the study of bone defect repair. Carbon dots with various reactive groups on the surface not only provide a unique surface to carry therapeutic genes, but also some carbon dots have been reported to promote osteogenic differentiation. The bone regeneration effect of carbon dots in vivo, however, is rarely investigated. MiR-2861 has revealed osteogenic differentiation effects. In the current study, we created ascorbic acid-PEI carbon dots (CD), which were able to carry miR-2861, by the microwave-assisted pyrolysis method. Results demonstrated that CD had excellent fluorescence stability leading to good fluorescence imaging in vitro and in vivo. CD was efficiently internalized into bone marrow stromal cells (BMSCs) through the clathrin-mediated endocytosis pathway and distributed in the mitochondria, endoplasmic reticulum, lysosome, and nucleus. Results from alkaline phosphatase staining, alizarin red staining, and reverse transcription real-time PCR (RT-QPCR) showed that our CD indeed had osteogenic effects in vitro. Flow cytometry data indicated that CD could efficiently deliver miR-2861 into BMSCs in vitro, and CD carrying miR-2861 (CD@miR) had the strongest osteogenic effects. Analyses of hematology, serum biochemistry, and histology showed that CD and CD@miR did not have cytotoxicity and had higher biocompatibility in vivo. Most interestingly, CD and miR-2861 in the CD@miR could act synergistically to promote osteogenic differentiation in vitro and new bone regeneration in vivo remarkably. Our results clearly indicate that the osteogenic CD delivering osteogenic therapeutic gene, miR-2861, can obtain much stronger bone regeneration ability, suggesting that our CD has great potential in future clinical application.
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Affiliation(s)
- Wenhuan Bu
- Liaoning Provincial Key Laboratory of Oral Diseases, School of Stomatology, China Medical University, Shenyang 110001, China
- Department of Dental Materials, School of Stomatology, China Medical University, Shenyang 110001, China
- Department of Oral Pathology, School of Stomatology, China Medical University, Shenyang 110001, China
- Department of Center Laboratory, School of Stomatology, China Medical University, Shenyang 110001, China
| | - Xiaowei Xu
- Department of Periodontology, School and Hospital of Stomatology, Jilin University, Changchun 130021, China
| | - Zilin Wang
- Department of Oral Pathology, School and Hospital of Stomatology, Jilin University, Changchun 130021, China
| | - Nianqiang Jin
- Liaoning Provincial Key Laboratory of Oral Diseases, School of Stomatology, China Medical University, Shenyang 110001, China
| | - Lili Liu
- Department of Oral Pathology, School and Hospital of Stomatology, Jilin University, Changchun 130021, China
| | - Jie Liu
- Department of Oral and Maxillofacial Surgery, School of Stomatology, Wuhan University, Wuhan 430000, China
| | - Shoujun Zhu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China
| | - Kai Zhang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China
| | - Raz Jelinek
- Department of Chemistry, Ilse Katz Institute for Nanotechnology, Ben Gurion University of the Negev, Beer Sheva 8410501, Israel
| | - Ding Zhou
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
| | - Hongchen Sun
- Liaoning Provincial Key Laboratory of Oral Diseases, School of Stomatology, China Medical University, Shenyang 110001, China
- Department of Oral Pathology, School of Stomatology, China Medical University, Shenyang 110001, China
| | - Bai Yang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China
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7
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Mandpe P, Prabhakar B, Shende P. Role of Liposomes-Based Stem Cell for Multimodal Cancer Therapy. Stem Cell Rev Rep 2020; 16:103-117. [PMID: 31786749 DOI: 10.1007/s12015-019-09933-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The utilization of stem cells as novel carriers to target tissues or organs of interest is a challenging task in delivery system. The composite cellular delivery with diverse signalling molecules as therapeutics increases stem cell capability and possesses the promising potential to augment, modify or commence localized or systemic restoration for vital applications in regenerative medicine. The inherent potential of stem cells to immigrate and reside at wounded site facilitates transportation of genes, polypeptides or nanosized molecules. Liposomes are micro- to nano-lipidic vesicles formed in aqueous solutions to encapsulate complex hydrophilic and lipophilic chemical substances. Moreover, these novel nanocarriers provide safer and efficient delivery of bioactives together with their potential applications in vaccine production, cosmeceuticals, imaging and diagnostic purpose. Tissue engineering promotes rejuvenation process and involves the synchronized utilization of cells with 3D bio-material scaffolds to fabricate living structures. This strategy requires regulated stimulus of cultured cells through combined mechanical signals and bioactive agents. This review highlights and summarizes the mechanism involved in stem cell migration, strategies to enhance homing, safety and efficacy studies of stem cells in various disease models and discusses the potential role of liposomes in prolonged and localized delivery of bioactives for regenerative medicines and tissue engineering techniques. Graphical Abstract Role of PEGylated liposomes in cancer stem cell therapy.
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Affiliation(s)
- Pankaj Mandpe
- Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management, SVKM'S NMIMS, V. L. Mehta road, Vile Parle (W), Mumbai, India
| | - Bala Prabhakar
- Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management, SVKM'S NMIMS, V. L. Mehta road, Vile Parle (W), Mumbai, India
| | - Pravin Shende
- Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management, SVKM'S NMIMS, V. L. Mehta road, Vile Parle (W), Mumbai, India.
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Silva CGD, Barretto LSDS, Lo Turco EG, Santos ADL, Lessio C, Martins Júnior HA, Almeida FGD. Lipidomics of mesenchymal stem cell differentiation. Chem Phys Lipids 2020; 232:104964. [PMID: 32882223 DOI: 10.1016/j.chemphyslip.2020.104964] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 07/31/2020] [Accepted: 08/23/2020] [Indexed: 01/10/2023]
Abstract
Mesenchymal stem cells (MSCs), such as adipose-derived stem cells (ADSCs) and skeletal muscle-derived stem cells (MDSCs), are potential sources for cell-based therapeutic strategies. However, there is little knowledge about the lipid composition of these stem cells and the mechanisms of their differentiation. Lipids have important biological and physiological functions that are critical for understanding the regulation and control of stem cell fate. This study sought to analyze the lipidome of rabbit ADSCs and MDSCs and their adipogenic and osteogenic differentiation. The MSCs were isolated and were characterized by flow cytometry. Lipids were extracted from both MSCs and differentiated cells, and the lipids were subsequently analyzed with a hybrid triple quadrupole time-of-flight mass spectrometer. The results showed a total of 1687 lipid species. MSCs exhibited different lipid profiles as well as changes in lipid composition after differentiation. Furthermore, the expression levels of N-acyl-phosphatidylethanolamine (NAPE) 54:7+NH4 (-FA 17:0(NH4)) and phosphatidylcholine (PC) 42:6+Na were higher in the adipogenic lineages in of both MSC types, and NAPE 58:2+NH4 (-FA 17:0 (NH4)) and NAPE 56:2+NH4 (-FA 17:0 (NH4)) had higher levels in the osteogenic lineages, suggesting lipid similarities in cells differentiated from different stem cell sources.
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Affiliation(s)
- Camila Gonzaga da Silva
- Department of Surgery, Division of Urology, Federal University of São Paulo, Rua Embaú 231- Vila Clementino, São Paulo, SP, 04039-060, Brazil
| | - Letícia Siqueira de Sá Barretto
- Department of Surgery, Division of Urology, Federal University of São Paulo, Rua Embaú 231- Vila Clementino, São Paulo, SP, 04039-060, Brazil.
| | - Edson Guimarães Lo Turco
- Department of Surgery, Division of Urology, Federal University of São Paulo, Rua Embaú 231- Vila Clementino, São Paulo, SP, 04039-060, Brazil
| | - Alex de Lima Santos
- Department of Surgery, Division of Urology, Federal University of São Paulo, Rua Embaú 231- Vila Clementino, São Paulo, SP, 04039-060, Brazil
| | - Camila Lessio
- Department of Surgery, Division of Urology, Federal University of São Paulo, Rua Embaú 231- Vila Clementino, São Paulo, SP, 04039-060, Brazil
| | | | - Fernando Gonçalves de Almeida
- Department of Surgery, Division of Urology, Federal University of São Paulo, Rua Embaú 231- Vila Clementino, São Paulo, SP, 04039-060, Brazil
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9
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Nanospheres Loaded with Curcumin Improve the Bioactivity of Umbilical Cord Blood-Mesenchymal Stem Cells via c-Src Activation During the Skin Wound Healing Process. Cells 2020; 9:cells9061467. [PMID: 32549381 PMCID: PMC7348987 DOI: 10.3390/cells9061467] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 06/13/2020] [Accepted: 06/14/2020] [Indexed: 12/11/2022] Open
Abstract
Curcumin, a hydrophobic polyphenol derived from turmeric, has been used a food additive and as a herbal medicine for the treatment of various diseases, but the clinical application of curcumin is restricted by its poor aqueous solubility and its low permeability and bioavailability levels. In the present study, we investigate the functional role of a nanosphere loaded with curcumin (CN) in the promotion of the motility of human mesenchymal stem cells (MSCs) during the skin wound healing process. CN significantly increased the motility of umbilical cord blood (UCB)-MSCs and showed 10,000-fold greater migration efficacy than curcumin. CN stimulated the phosphorylation of c-Src and protein kinase C which are responsible for the distinctive activation of the MAPKs. Interestingly, CN significantly induced the expression levels of α-actinin-1, profilin-1 and filamentous-actin, as regulated by the phosphorylation of nuclear factor-kappa B during its promotion of cell migration. In a mouse skin excisional wound model, we found that transplantation of UCB-MSCs pre-treated with CN enhanced wound closure, granulation, and re-epithelialization at mouse skin wound sites. These results indicate that CN is a functional agent that promotes the mobilization of UCB-MSCs for cutaneous wound repair.
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Abstract
PURPOSE OF REVIEW The clinical significance, target pathways, recent successes, and challenges that preclude translation of RNAi bone regenerative approaches are overviewed. RECENT FINDINGS RNA interference (RNAi) is a promising new therapeutic approach for bone regeneration by stimulating or inhibiting critical signaling pathways. However, RNAi suffers from significant delivery challenges. These challenges include avoiding nuclease degradation, achieving bone tissue targeting, and reaching the cytoplasm for mRNA inhibition. Many drug delivery systems have overcome stability and intracellular localization challenges but suffer from protein adsorption that results in clearance of up to 99% of injected dosages, thus severely limiting drug delivery efficacy. While RNAi has myriad promising attributes for use in bone regenerative applications, delivery challenges continue to plague translation. Thus, a focus on drug delivery system development is critical to provide greater delivery efficiency and bone targeting to reap the promise of RNAi.
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Affiliation(s)
- Dominic W Malcolm
- Department of Biomedical Engineering, University of Rochester, 308 Robert B. Goergen Hall, Rochester, NY, 14627, USA
- Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA
| | - Yuchen Wang
- Department of Biomedical Engineering, University of Rochester, 308 Robert B. Goergen Hall, Rochester, NY, 14627, USA
- Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA
| | - Clyde Overby
- Department of Biomedical Engineering, University of Rochester, 308 Robert B. Goergen Hall, Rochester, NY, 14627, USA
- Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA
| | - Maureen Newman
- Department of Biomedical Engineering, University of Rochester, 308 Robert B. Goergen Hall, Rochester, NY, 14627, USA
- Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA
| | - Danielle S W Benoit
- Department of Biomedical Engineering, University of Rochester, 308 Robert B. Goergen Hall, Rochester, NY, 14627, USA.
- Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA.
- Materials Science Program, University of Rochester, Rochester, NY, USA.
- Department of Chemical Engineering, University of Rochester, Rochester, NY, USA.
- Department of Biomedical Genetics and Center for Oral Biology, University of Rochester Medical Center, Rochester, NY, USA.
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Zuidema JM, Bertucci A, Kang J, Sailor MJ, Ricci F. Hybrid polymer/porous silicon nanofibers for loading and sustained release of synthetic DNA-based responsive devices. NANOSCALE 2020; 12:2333-2339. [PMID: 31930266 DOI: 10.1039/c9nr08474f] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Synthetic DNA-based oligonucleotides are loaded into porous silicon nanoparticles (pSiNPs) and incorporated into nanofibers of poly(lactide-co-glycolide) (PLGA), poly-l-lactic acid (PLA), or polycaprolactone (PCL). The resulting hybrid nanofibers are characterized for their ability to release the functional oligonucleotide payload under physiologic conditions. Under temperature and pH conditions mimicking physiological values, the PLGA-based nanofibers release >80% of their DNA cargo within 5 days, whereas the PLA and PCL-based fibers require 15 days to release >80% of their cargo. The quantity of DNA released scales with the quantity of DNA-loaded pSiNPs embedded in the nanofibers; mass loadings of between 2.4 and 9.1% (based on mass of DNA-pSiNP construct relative to mass of polymer composite) are investigated. When a responsive DNA-based nanodevice (i.e. molecular beacon) is used as a payload, it retains its functionality during the release period, independent of the polymer used for the formation of the nanofibers.
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Affiliation(s)
- Jonathan M Zuidema
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, CA, USA.
| | - Alessandro Bertucci
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, CA, USA. and Department of Chemical Science and Technologies, University of Rome Tor Vergata, 00133 Rome, Italy.
| | - Jinyoung Kang
- Department of Nanoengineering, University of California San Diego, La Jolla, CA, USA
| | - Michael J Sailor
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, CA, USA. and Department of Nanoengineering, University of California San Diego, La Jolla, CA, USA
| | - Francesco Ricci
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, 00133 Rome, Italy.
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12
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Wu Q, Wang K, Wang X, Liang G, Li J. Delivering siRNA to control osteogenic differentiation and real-time detection of cell differentiation in human mesenchymal stem cells using multifunctional gold nanoparticles. J Mater Chem B 2020; 8:3016-3027. [DOI: 10.1039/c9tb02899d] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Schematic representation of the multifunctional gold nanoparticles (AuNP-PEI-peptide-FITC) synthesis and siRNA adsorption to silence the PPARγ gene for controlling osteogenic differentiation and real-time detection of ongoing cell differentiation in hMSCs.
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Affiliation(s)
- Qian Wu
- MOE Key Laboratory of Laser Life Science & Guangdong Provincial Key Laboratory of Laser Life Science
- College of Biophotonics
- South China Normal University
- Guangzhou 510631
- China
| | - Kaipeng Wang
- MOE Key Laboratory of Laser Life Science & Guangdong Provincial Key Laboratory of Laser Life Science
- College of Biophotonics
- South China Normal University
- Guangzhou 510631
- China
| | - Xichao Wang
- MOE Key Laboratory of Laser Life Science & Guangdong Provincial Key Laboratory of Laser Life Science
- College of Biophotonics
- South China Normal University
- Guangzhou 510631
- China
| | - Guohai Liang
- MOE Key Laboratory of Laser Life Science & Guangdong Provincial Key Laboratory of Laser Life Science
- College of Biophotonics
- South China Normal University
- Guangzhou 510631
- China
| | - Jinming Li
- MOE Key Laboratory of Laser Life Science & Guangdong Provincial Key Laboratory of Laser Life Science
- College of Biophotonics
- South China Normal University
- Guangzhou 510631
- China
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13
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Hosseinpour S, He Y, Nanda A, Ye Q. MicroRNAs Involved in the Regulation of Angiogenesis in Bone Regeneration. Calcif Tissue Int 2019; 105:223-238. [PMID: 31175386 DOI: 10.1007/s00223-019-00571-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 06/01/2019] [Indexed: 12/11/2022]
Abstract
MicroRNAs (miRNAs) as a newly founded and thriving non-coding endogenous class of molecules which regulate many cellular pathways after transcription have been extensively investigated in regenerative medicine. In this systematic review, we sought to analyze miRNAs-mediated therapeutic approaches for influencing angiogenesis in bone tissue/bone regeneration. An electronic search in MEDLINE, Scopus, EMBASE, Cochrane library, web of science, and google scholar with no time limit were done on English publications. All types of original articles which a miRNA for angiogenesis in bone regeneration were included in our review. In the process of reviewing, we used PRISMA guideline and, SYRCLE's and science in risk assessment and policy tools for analyzing risk of bias. Among 751 initial retrieved records, 16 studies met the inclusion criteria and were fully assessed in this review. 275 miRNAs, one miRNA 195~497 cluster, and one Cysteine-rich 61 short hairpin RNA were differentially expressed during bone regeneration with 24 predicted targets reported in these studies. Among these miRNAs, miRNA-7b, -9, -21, -26a, -27a, -210, -378, -195~497 cluster, -378 and -675 positively promoted both angiogenesis and osteogenesis, whereas miRNA-10a, -222 and -494 inhibited both processes. The most common target was vasculoendothelial growth factor-signaling pathway. Recent evidence has demonstrated that miRNAs actively participated in angio-osteogenic coupling that can improve their therapeutic potentials for the treatment of bone-related diseases and bone regeneration. However, there is still need for further research to unravel the exact mechanisms.
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Affiliation(s)
- Sepanta Hosseinpour
- School of Dentistry, The University of Queensland, Herston, Brisbane, QLD, 4006, Australia
| | - Yan He
- School of Dentistry, The University of Queensland, Herston, Brisbane, QLD, 4006, Australia
| | - Ashwin Nanda
- School of Dentistry, The University of Queensland, Herston, Brisbane, QLD, 4006, Australia
| | - Qingsong Ye
- School of Dentistry, The University of Queensland, Herston, Brisbane, QLD, 4006, Australia.
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14
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Li J, Leung CWT, Wong DSH, Xu J, Li R, Zhao Y, Yung CYY, Zhao E, Tang BZ, Bian L. Photocontrolled SiRNA Delivery and Biomarker-Triggered Luminogens of Aggregation-Induced Emission by Up-Conversion NaYF 4:Yb 3+Tm 3+@SiO 2 Nanoparticles for Inducing and Monitoring Stem-Cell Differentiation. ACS APPLIED MATERIALS & INTERFACES 2019; 11:22074-22084. [PMID: 28350958 DOI: 10.1021/acsami.7b00845] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Controlling the differentiation of stem cells and monitoring cell differentiation has attracted much research interest since the discovery of stem cells. In this regard, a novel near-infrared (NIR) light-activated nanoplatform is obtained by encapsulating the photoactivatable caged compound (DMNPE/siRNA) and combining a MMP13 cleaved imaging peptide-tetrapheny-lethene (TPE) unit conjugated with the mesoporous silica-coated up-conversion nanoparticles (UCNPs) for the remote control of cell differentiation and, simultaneously, for the real-time monitoring of differentiation. Upon NIR light illumination, the photoactivated caged compound is activated, and the siRNA is released from UCNPs, allowing controlled differentiation of stem cells by light. More importantly, MMP13 enzyme triggered by osteogenic differentiation would effectively cleave the TPE probe peptide, thereby allowing the real-time monitoring of differentiation in living stem cells by aggregation-induced emission (AIE).
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Affiliation(s)
- Jinming Li
- Division of Biomedical Engineering , The Chinese University of Hong Kong , Hong Kong , China
| | - Chris Wai Tung Leung
- Department of Chemistry, Institute of Molecular Functional Materials , The Hong Kong University of Science and Technology (HKUST) , Kowloon, Hong Kong , China
| | - Dexter Siu Hong Wong
- Division of Biomedical Engineering , The Chinese University of Hong Kong , Hong Kong , China
| | - Jianbin Xu
- Division of Biomedical Engineering , The Chinese University of Hong Kong , Hong Kong , China
| | - Rui Li
- Division of Biomedical Engineering , The Chinese University of Hong Kong , Hong Kong , China
| | - Yueyue Zhao
- Department of Chemistry, Institute of Molecular Functional Materials , The Hong Kong University of Science and Technology (HKUST) , Kowloon, Hong Kong , China
| | - Chris Yu Yee Yung
- Department of Chemistry, Institute of Molecular Functional Materials , The Hong Kong University of Science and Technology (HKUST) , Kowloon, Hong Kong , China
| | - Engui Zhao
- Department of Chemistry, Institute of Molecular Functional Materials , The Hong Kong University of Science and Technology (HKUST) , Kowloon, Hong Kong , China
| | - Ben Zhong Tang
- Department of Chemistry, Institute of Molecular Functional Materials , The Hong Kong University of Science and Technology (HKUST) , Kowloon, Hong Kong , China
| | - Liming Bian
- Division of Biomedical Engineering , The Chinese University of Hong Kong , Hong Kong , China
- China Orthopedic Regenerative Medicine Group (CORMed) , Hangzhou , China
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15
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Chen X, Li R, Wong SHD, Wei K, Cui M, Chen H, Jiang Y, Yang B, Zhao P, Xu J, Chen H, Yin C, Lin S, Lee WYW, Jing Y, Li Z, Yang Z, Xia J, Chen G, Li G, Bian L. Conformational manipulation of scale-up prepared single-chain polymeric nanogels for multiscale regulation of cells. Nat Commun 2019; 10:2705. [PMID: 31221969 PMCID: PMC6586678 DOI: 10.1038/s41467-019-10640-z] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Accepted: 05/16/2019] [Indexed: 12/30/2022] Open
Abstract
Folded single chain polymeric nano-objects are the molecular level soft material with ultra-small size. Here, we report an easy and scalable method for preparing single-chain nanogels (SCNGs) with improved efficiency. We further investigate the impact of the dynamic molecular conformational change of SCNGs on cellular interactions from molecular to bulk scale. First, the supramolecular unfoldable SCNGs efficiently deliver siRNAs into stem cells as a molecular drug carrier in a conformation-dependent manner. Furthermore, the conformation changes of SCNGs enable dynamic and precise manipulation of ligand tether structure on 2D biomaterial interfaces to regulate the ligand-receptor ligation and mechanosensing of cells. Lastly, the dynamic SCNGs as the building blocks provide effective energy dissipation to bulk biomaterials such as hydrogels, thereby protecting the encapsulated stem cells from deleterious mechanical shocks in 3D matrix. Such a bottom-up molecular tailoring strategy will inspire further applications of single-chain nano-objects in the biomedical area.
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Affiliation(s)
- Xiaoyu Chen
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong, 999077, Hong Kong
| | - Rui Li
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong, 999077, Hong Kong
| | - Siu Hong Dexter Wong
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong, 999077, Hong Kong
| | - Kongchang Wei
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biomimetic Membranes and Textiles, Lerchenfeldstrasse 5, CH-9014, St. Gallen, Switzerland
| | - Miao Cui
- Beijing Genomic Institute-Shenzhen, Shenzhen, 518083, China
| | - Huaijun Chen
- The State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200433, China
| | - Yuanzhang Jiang
- Institute of Textiles & Clothing, The Hong Kong Polytechnic University, Hong Kong, 999077, Hong Kong
| | - Boguang Yang
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong, 999077, Hong Kong
| | - Pengchao Zhao
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong, 999077, Hong Kong
| | - Jianbin Xu
- Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, 310016, China
| | - Heng Chen
- Shenzhen Key Laboratory of Special Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Chao Yin
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong, 999077, Hong Kong
| | - Sien Lin
- Department of Orthopaedics & Traumatology, Stem Cells and Regenerative Medicine Laboratory, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, 999077, Hong Kong
- The CUHK-ACC Space Medicine Centre on Health Maintenance of Musculoskeletal System, Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, 518172, China
| | - Wayne Yuk-Wai Lee
- Department of Orthopaedics & Traumatology, Stem Cells and Regenerative Medicine Laboratory, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, 999077, Hong Kong
- The CUHK-ACC Space Medicine Centre on Health Maintenance of Musculoskeletal System, Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, 518172, China
| | - Yihan Jing
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong, 999077, Hong Kong
| | - Zhen Li
- The State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200433, China
| | - Zhengmeng Yang
- Department of Orthopaedics & Traumatology, Stem Cells and Regenerative Medicine Laboratory, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, 999077, Hong Kong
- The CUHK-ACC Space Medicine Centre on Health Maintenance of Musculoskeletal System, Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, 518172, China
| | - Jiang Xia
- Department of Chemistry, The Chinese University of Hong Kong, Hong Kong, 999077, Hong Kong
| | - Guosong Chen
- The State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200433, China
| | - Gang Li
- Department of Orthopaedics & Traumatology, Stem Cells and Regenerative Medicine Laboratory, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, 999077, Hong Kong
- The CUHK-ACC Space Medicine Centre on Health Maintenance of Musculoskeletal System, Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, 518172, China
| | - Liming Bian
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong, 999077, Hong Kong.
- Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, 518172, China.
- Centre for Novel Biomaterials, The Chinese University of Hong Kong, Hong Kong, 999077, Hong Kong.
- China Orthopaedic Regenerative Medicine Group, Hangzhou, 310058, China.
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Chooi WH, Ong W, Murray A, Lin J, Nizetic D, Chew SY. Scaffold mediated gene knockdown for neuronal differentiation of human neural progenitor cells. Biomater Sci 2018; 6:3019-3029. [PMID: 30277233 DOI: 10.1039/c8bm01034j] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The use of human induced pluripotent stem cell-derived neural progenitor cells (hiPSC-NPCs) is an attractive therapeutic option for damaged nerve tissues. To direct neuronal differentiation of stem cells, we have previously developed an electrospun polycaprolactone nanofiber scaffold that was functionalized with siRNA targeting Re-1 silencing transcription factor (REST), by mussel-inspired bioadhesive coating. However, the efficacy of nanofiber-mediated RNA interference on hiPSC-NPCs differentiation remains unknown. Furthermore, interaction between such cell-seeded scaffolds with injured tissues has not been tested. In this study, scaffolds were optimized for REST knockdown in hiPSC-NPCs to enhance neuronal differentiation. Specifically, the effects of two different mussel-inspired bioadhesives and transfection reagents were analyzed. Scaffolds functionalized with RNAiMAX Lipofectamine-siREST complexes enhanced the differentiation of hiPSC-NPCs into TUJ1+ cells (60% as compared to 22% in controls with scrambled siNEG after 9 days) without inducing high cytotoxicity. When cell-seeded scaffolds were transplanted to transected spinal cord organotypic slices, similar efficiency in neuronal differentiation was observed. The scaffolds also supported the migration of cells and neurite outgrowth from the spinal cord slices. Taken together, the results suggest that this scaffold can be effective in enhancing hiPSC-NPC neuronal commitment by gene-silencing for the treatment of injured spinal cords.
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Affiliation(s)
- Wai Hon Chooi
- School of Chemical & Biomedical Engineering, Nanyang Technological University, 637459 Singapore. sychew.ntu.edu.sg
| | - William Ong
- School of Chemical & Biomedical Engineering, Nanyang Technological University, 637459 Singapore. sychew.ntu.edu.sg
| | - Aoife Murray
- Lee Kong Chian School of Medicine, Nanyang Technological University, 308232 Singapore
| | - Junquan Lin
- School of Chemical & Biomedical Engineering, Nanyang Technological University, 637459 Singapore. sychew.ntu.edu.sg
| | - Dean Nizetic
- Lee Kong Chian School of Medicine, Nanyang Technological University, 308232 Singapore
| | - Sing Yian Chew
- School of Chemical & Biomedical Engineering, Nanyang Technological University, 637459 Singapore. sychew.ntu.edu.sg and Lee Kong Chian School of Medicine, Nanyang Technological University, 308232 Singapore
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Pinese C, Lin J, Milbreta U, Li M, Wang Y, Leong KW, Chew SY. Sustained delivery of siRNA/mesoporous silica nanoparticle complexes from nanofiber scaffolds for long-term gene silencing. Acta Biomater 2018; 76:164-177. [PMID: 29890267 DOI: 10.1016/j.actbio.2018.05.054] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 05/13/2018] [Accepted: 05/31/2018] [Indexed: 01/28/2023]
Abstract
A low toxicity and efficient delivery system is needed to deliver small interfering RNAs (siRNA) in vitro and in vivo. The use of mesoporous silica nanoparticles (MSN) is becoming increasingly common due to its biocompatibility, tunable pore size and customizable properties. However, bolus delivery of siRNA/MSN complexes remains suboptimal, especially when a sustained and long-term administration is required. Here, we utilized electrospun scaffolds for sustained delivery of siRNA/MSN-PEI through surface adsorption and nanofiber encapsulation. As a proof-of-concept, we targeted collagen type I expression to modulate fibrous capsule formation. Surface adsorption of siRNA/MSN-PEI provided sustained availability of siRNA for at least 30 days in vitro. As compared to conventional bolus delivery, such scaffold-mediated transfection provided more effective gene silencing (p < 0.05). On the contrary, a longer sustained release was attained (at least 5 months) when siRNA/MSN-PEI complexes were encapsulated within the electrospun fibers. In vivo subcutaneous implantation and biodistribution analysis of these scaffolds revealed that siRNA remained localized up to ∼290 μm from the implants. Finally, a fibrous capsule reduction of ∼45.8% was observed after 4 weeks in vivo as compared to negative scrambled siRNA treatment. Taken together, these results demonstrate the efficacy of scaffold-mediated sustained delivery of siRNA/MSN-PEI for long-term non-viral gene silencing applications. STATEMENT OF SIGNIFICANCE The bolus delivery of siRNA/mesoporous silica nanoparticles (MSN) complexes shows high efficiency to silence protein agonists of tumoral processes as cancer treatments. However, in tissue engineering area, scaffold mediated delivery is desired to achieve a local and sustained release of therapeutics. We showed the feasibility and the efficacy of siRNA/MSN delivered from electrospun scaffolds through surface adsorption and nanofiber encapsulation. We showed that this method enhances siRNA transfection efficiency and sustained targeted proteins silencing in vitro and in vivo. As a proof of concept, in this study, we targeted collagen type I expression to modulate fibrous capsule formation. However this platform can be applied to the release and transfection of siRNA or miRNA in cancer and tissue engineering applications.
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Affiliation(s)
- Coline Pinese
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 637459 Singapore, Singapore; Artificial Biopolymers Department, Max Mousseron Institute of Biomolecules (IBMM), UMR CNRS 5247, University of Montpellier, Faculty of Pharmacy, Montpellier 34093, France
| | - Junquan Lin
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 637459 Singapore, Singapore
| | - Ulla Milbreta
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 637459 Singapore, Singapore
| | - Mingqiang Li
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, USA
| | - Yucai Wang
- Hefei National Laboratory for Physical Sciences at Microscale and School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Kam W Leong
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, USA
| | - Sing Yian Chew
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 637459 Singapore, Singapore; Lee Kong Chian School of Medicine, Nanyang Technological University, 308232 Singapore, Singapore.
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18
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Yang C, Gao S, Song P, Dagnæs-Hansen F, Jakobsen M, Kjems J. Theranostic Niosomes for Efficient siRNA/MicroRNA Delivery and Activatable Near-Infrared Fluorescent Tracking of Stem Cells. ACS APPLIED MATERIALS & INTERFACES 2018; 10:19494-19503. [PMID: 29767944 DOI: 10.1021/acsami.8b05513] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
RNA interference-mediated gene regulation in stem cells offers great potential in regenerative medicine. In this study, we developed a theranostic platform for efficient delivery of small RNAs [small interfering RNA (siRNA)/microRNA (miRNA)] to human mesenchymal stem cells (hMSCs) to promote differentiation, and meanwhile, to specifically label the transfected cells for the in vivo tracking purpose. We encapsulated indocyanine green (ICG) in a nonionic surfactant vesicle, termed "niosome", that is mainly composed of a nonionic surfactant sorbitan monooleate (Span 80) and a cationic lipid 1,2-dioleoyl-3-trimethylammonium-propane (DOTAP). This novel ICG-containing niosome system (iSPN) demonstrated highly efficient siRNA and miRNA delivery in hMSCs. Specific inhibition of miR-138, a negative regulator of osteoblast differentiation, was achieved by iSPN/miR-138, which significantly promoted osteogenesis of hMSCs. Furthermore, iSPN exhibited OFF/ON activatable fluorescence upon cellular internalization, resulting in efficient near-infrared labeling and the capability to dynamically monitor stem cells in mice. In addition, iSPN/siRNA achieved simultaneous long-term cell tracking and in vivo gene silencing after implantation in mice. These results indicate that our theranostic niosomes could represent a promising platform for future development of stem cell-based therapy.
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Luo XY, Liu Q, Yang H, Tan Q, Gan LQ, Ren FL, Wang H. OSMR gene effect on the pathogenesis of chronic autoimmune Urticaria via the JAK/STAT3 pathway. Mol Med 2018; 24:28. [PMID: 30134804 PMCID: PMC6016876 DOI: 10.1186/s10020-018-0025-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Accepted: 05/06/2018] [Indexed: 11/18/2022] Open
Abstract
Background Chronic autoimmune urticaria (CAU) is a common skin disease and remains unclear understanding of pathogenesis in the vast majority of cases. In order to explore a new therapy for CAU, the current study was performed to investigate the possible functioning of the Oncostatin M receptor (OSMR) gene in the autoimmunity of CAU via regulation of the JAK/STAT3 signaling pathway. Methods CAU skin tissues from 24 CAU patients and normal skin tissues from normal subjects were collected. Hematoxylin-eosin (HE) staining was conducted to count eosinophils, and immunohistochemistry was carried out to detect the positive rate of OSMR expression in two kinds of skin tissues. A total of 72 Kunming (KM) mice were selected, and 60 mice were used for establishing CAU models and later transfected with different plasmids. The expression of inflammatory factors was evaluated by enzyme-linked immunosorbent assays (ELISA). Expressions of janus kinase (JAK), signal transducer and activator of transcription 3 (STAT3), interferon-stimulated gene 15 (ISG15), CT10-regulated kinase (CRK), and interferon regulatory factor 9 (IRF9) were identified using Western blot assay and reverse transcription quantitative polymerase chain reaction (RT-qPCR). Epithelial cell proliferation was assessed by 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyl tetrazolium bromide (MTT) assay, and cell cycle distribution and cell apoptosis were assessed using flow cytometry. Results The findings confirm that OSMR protein expression and histamine release rate are highly elevated in human CAU skin tissues, and the expression of the JAK/STAT3 signaling pathway-related genes (OSMR, JAK2, STAT3, ISG15, CRK and IRF9) was up-regulated. OSMR gene silencing in CAU mice significantly decreases the content of inflammatory factors (IL-1, IL-6, IFN-γ, and IgE), the number of eosinophils, and reduces the expression of the JAK/STAT3 signaling pathway related genes, and further enhances cell proliferation, promotes cell cycle entry and inhibits apoptosis of epithelial cells. Conclusion All aforementioned results indicate that OSMR gene silencing inhibits the activation of the JAK/STAT3 signaling pathway, thereby suppressing the development of CAU.
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Affiliation(s)
- Xiao-Yan Luo
- Department of Dermatology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China.,Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, 400014, China
| | - Qun Liu
- The Division of Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, MD, 21224, USA
| | - Huan Yang
- Department of Dermatology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China.,China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing, 400014, China
| | - Qi Tan
- Department of Dermatology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China.,Chongqing Key Laboratory of Pediatrics, No.136, Zhongshan Er Road, Yuzhong District, Chongqing, 400014, China
| | - Li-Qiang Gan
- Department of Dermatology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China.,Chongqing Key Laboratory of Pediatrics, No.136, Zhongshan Er Road, Yuzhong District, Chongqing, 400014, China
| | - Fa-Liang Ren
- Department of Dermatology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China
| | - Hua Wang
- Department of Dermatology, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China. .,Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, 400014, China. .,China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing, 400014, China. .,Chongqing Key Laboratory of Pediatrics, No.136, Zhongshan Er Road, Yuzhong District, Chongqing, 400014, China.
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Raisin S, Morille M, Bony C, Noël D, Devoisselle JM, Belamie E. Tripartite polyionic complex (PIC) micelles as non-viral vectors for mesenchymal stem cell siRNA transfection. Biomater Sci 2018; 5:1910-1921. [PMID: 28722044 DOI: 10.1039/c7bm00384f] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
In the context of regenerative medicine, the use of RNA interference mechanisms has already proven its efficiency in targeting specific gene expression with the aim of enhancing, accelerating or, more generally, directing stem cell differentiation. However, achievement of good transfection levels requires the use of a gene vector. For in vivo applications, synthetic vectors are an interesting option to avoid possible issues associated with viral vectors (safety, production costs, etc.). Herein, we report on the design of tripartite polyionic complex micelles as original non-viral polymeric vectors suited for mesenchymal stem cell transfection with siRNA. Three micelle formulations were designed to exhibit pH-triggered disassembly in an acidic pH range comparable to that of endosomes. One formulation was selected as the most promising with the highest siRNA loading capacity while clearly maintaining pH-triggered disassembly properties. A thorough investigation of the internalization pathway of micelles into cells with tagged siRNA was made before showing an efficient inhibition of Runx2 expression in primary bone marrow-derived stem cells. This work evidenced PIC micelles as promising synthetic vectors that allow efficient MSC transfection and control over their behavior, from the perspective of their clinical use.
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Affiliation(s)
- Sophie Raisin
- Institut Charles Gerhardt Montpellier, UMR 5253 CNRS-ENSCM-UM2-UM1, Equipe Matériaux Avancés pour la Catalyse et la Santé, 8 rue de l'Ecole Normale, 34296 Montpellier Cedex 5, France
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21
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Lu L, Wang Y, Zhang F, Chen M, Lin B, Duan X, Cao M, Zheng C, Mao J, Shuai X, Shen J. MRI-Visible siRNA Nanomedicine Directing Neuronal Differentiation of Neural Stem Cells in Stroke. ADVANCED FUNCTIONAL MATERIALS 2018; 28:1706769. [DOI: 10.1002/adfm.201706769] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/29/2023]
Affiliation(s)
- Liejing Lu
- Department of Radiology; Sun Yat-Sen Memorial Hospital; Sun Yat-Sen University; Guangzhou 510120 Guangdong China
| | - Yong Wang
- PCFM Lab of Ministry of Education; School of Materials Science and Engineering; Sun Yat-Sen University; Guangzhou 510275 China
| | - Fang Zhang
- Department of Radiology; Sun Yat-Sen Memorial Hospital; Sun Yat-Sen University; Guangzhou 510120 Guangdong China
| | - Meiwei Chen
- Department of Radiology; Sun Yat-Sen Memorial Hospital; Sun Yat-Sen University; Guangzhou 510120 Guangdong China
| | - Bingling Lin
- Department of Radiology; Sun Yat-Sen Memorial Hospital; Sun Yat-Sen University; Guangzhou 510120 Guangdong China
| | - Xiaohui Duan
- Department of Radiology; Sun Yat-Sen Memorial Hospital; Sun Yat-Sen University; Guangzhou 510120 Guangdong China
| | - Minghui Cao
- Department of Radiology; Sun Yat-Sen Memorial Hospital; Sun Yat-Sen University; Guangzhou 510120 Guangdong China
| | - Chushan Zheng
- Department of Radiology; Sun Yat-Sen Memorial Hospital; Sun Yat-Sen University; Guangzhou 510120 Guangdong China
| | - Jiaji Mao
- Department of Radiology; Sun Yat-Sen Memorial Hospital; Sun Yat-Sen University; Guangzhou 510120 Guangdong China
| | - Xintao Shuai
- BME Center; Zhongshan School of Medicine; Sun Yat-Sen University; Guangzhou 510080 China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation; Sun Yat-Sen Memorial Hospital; Sun Yat-Sen University; Guangzhou 510120 Guangdong China
| | - Jun Shen
- Department of Radiology; Sun Yat-Sen Memorial Hospital; Sun Yat-Sen University; Guangzhou 510120 Guangdong China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation; Sun Yat-Sen Memorial Hospital; Sun Yat-Sen University; Guangzhou 510120 Guangdong China
- Guangdong Province Key Laboratory of Brain Function and Disease; Zhongshan School of Medicine; Sun Yat-Sen University; 74 Zhongshan 2nd Road, Guangzhou 510080 Guangdong China
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22
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Curtin CM, Castaño IM, O'Brien FJ. Scaffold-Based microRNA Therapies in Regenerative Medicine and Cancer. Adv Healthc Mater 2018; 7. [PMID: 29068566 DOI: 10.1002/adhm.201700695] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 08/21/2017] [Indexed: 12/17/2022]
Abstract
microRNA-based therapies are an advantageous strategy with applications in both regenerative medicine (RM) and cancer treatments. microRNAs (miRNAs) are an evolutionary conserved class of small RNA molecules that modulate up to one third of the human nonprotein coding genome. Thus, synthetic miRNA activators and inhibitors hold immense potential to finely balance gene expression and reestablish tissue health. Ongoing industry-sponsored clinical trials inspire a new miRNA therapeutics era, but progress largely relies on the development of safe and efficient delivery systems. The emerging application of biomaterial scaffolds for this purpose offers spatiotemporal control and circumvents biological and mechanical barriers that impede successful miRNA delivery. The nascent research in scaffold-mediated miRNA therapies translates know-how learnt from studies in antitumoral and genetic disorders as well as work on plasmid (p)DNA/siRNA delivery to expand the miRNA therapies arena. In this progress report, the state of the art methods of regulating miRNAs are reviewed. Relevant miRNA delivery vectors and scaffold systems applied to-date for RM and cancer treatment applications are discussed, as well as the challenges involved in their design. Overall, this progress report demonstrates the opportunity that exists for the application of miRNA-activated scaffolds in the future of RM and cancer treatments.
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Affiliation(s)
- Caroline M. Curtin
- Tissue Engineering Research Group; Department of Anatomy; Royal College of Surgeons in Ireland (RCSI); 123 St. Stephens Green Dublin 2 Ireland
- Trinity Centre for Bioengineering; Trinity College Dublin (TCD); Dublin 2 Ireland
- Advanced Materials and Bioengineering Research (AMBER) Centre; RCSI & TCD; Dublin 2 Ireland
| | - Irene Mencía Castaño
- Tissue Engineering Research Group; Department of Anatomy; Royal College of Surgeons in Ireland (RCSI); 123 St. Stephens Green Dublin 2 Ireland
- Trinity Centre for Bioengineering; Trinity College Dublin (TCD); Dublin 2 Ireland
- Advanced Materials and Bioengineering Research (AMBER) Centre; RCSI & TCD; Dublin 2 Ireland
| | - Fergal J. O'Brien
- Tissue Engineering Research Group; Department of Anatomy; Royal College of Surgeons in Ireland (RCSI); 123 St. Stephens Green Dublin 2 Ireland
- Trinity Centre for Bioengineering; Trinity College Dublin (TCD); Dublin 2 Ireland
- Advanced Materials and Bioengineering Research (AMBER) Centre; RCSI & TCD; Dublin 2 Ireland
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23
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Sun XK, Zhou J, Zhang L, Ma T, Wang YH, Yang YM, Tang YT, Li H, Wang LJ. Down-regulation of Noggin and miR-138 coordinately promote osteogenesis of mesenchymal stem cells. J Mol Histol 2017; 48:427-436. [PMID: 29094227 DOI: 10.1007/s10735-017-9740-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Accepted: 10/22/2017] [Indexed: 12/12/2022]
Abstract
Mesenchymal stem cells (MSCs) can differentiate to osteocytes under suitable conditions. In recent years, micro-nucleotides have been progressively used to modulate gene expression in cells due to the consideration of safety. Our present study aimed to investigate whether co-delivery of Noggin-siRNA and antimiR-138 enhances the osteogenic effect of MSCs. Using a murine MSC line, C3H/10T1/2 cells, the delivery efficiency of Noggin-siRNA and antimiR-138 into MSCs was evaluated by quantitative real-time polymerase chain reaction (qRT-PCR). Cell phenotype and proliferation capacity was assessed by flow cytometry and MTT assay respectively. The osteogenesis of MSCs was tested by Alkaline Phosphatase (ALP) staining, qRT-PCR, and western blot analyses. Our results demonstrated that the expression of Noggin and miR-138 were significantly silenced in MSCs by Noggin-siRNA and/or antimiR-138 delivery, while the phenotype and proliferation capacity of MSCs were not affected. Down-regulation of Noggin and miR-138 cooperatively promoted osteogenic differentiation of MSCs. The ALP positive cells reached about 83.57 ± 10.18%. Compared with single delivery, the expression of osteogenic related genes, such as Alp, Col-1, Bmp2, Ocn and Runx2, were the highest in cells with co-delivery of the two oligonucleotides. Moreover, the protein level of RUNX2, and the ratios of pSMAD1/5/SMAD1/5 and pERK1/2/ERK1/2 were significantly increased. The activation of Smad, Erk signaling may constitute the underlying mechanism of the enhanced osteogenesis process. Taken together, our study provides a safe strategy for the clinical rehabilitation application of MSCs in skeletal deficiency.
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Affiliation(s)
- Xing-Kun Sun
- Department of Advanced Interdisciplinary Studies, Institute of Basic Medical Sciences and Tissue Engineering Research Center, Beijing, 100850, China
- Department of Stomatology, General Hospital of Chinese People's Armed Police Forces, Beijing, 100039, China
- Jinzhou Medical University, Jinzhou, 121001, Liaoning Province, China
| | - Jin Zhou
- Department of Advanced Interdisciplinary Studies, Institute of Basic Medical Sciences and Tissue Engineering Research Center, Beijing, 100850, China
| | - Lei Zhang
- School of Biological and Chemical Engineering, ZheJiang University of Science & Technology, Hangzhou, 310023, China
| | - Tian Ma
- Department of Plastic and Reconstructive Surgery, Chinese PLA General Hospital, Beijing, 100853, China
| | - Yu-Han Wang
- Tibet Vocational Technical College, Lhasa, 850032, Tibet Autonomous Region, China
| | - Yan-Mei Yang
- Department of Stomatology, Chinese PLA General Hospital, Beijing, 100853, China
| | - Yan-Ting Tang
- Department of Stomatology, People's Hospital of Suzhou High-tech Zone, Suzhou, 215129, Jiangsu Province, China
| | - Hong Li
- Department of Advanced Interdisciplinary Studies, Institute of Basic Medical Sciences and Tissue Engineering Research Center, Beijing, 100850, China.
| | - Li-Jun Wang
- Department of Stomatology, General Hospital of Chinese People's Armed Police Forces, Beijing, 100039, China.
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24
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Malcolm DW, Freeberg MAT, Wang Y, Sims KR, Awad HA, Benoit DSW. Diblock Copolymer Hydrophobicity Facilitates Efficient Gene Silencing and Cytocompatible Nanoparticle-Mediated siRNA Delivery to Musculoskeletal Cell Types. Biomacromolecules 2017; 18:3753-3765. [PMID: 28960967 DOI: 10.1021/acs.biomac.7b01349] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
pH-responsive diblock copolymers provide tailorable nanoparticle (NP) architecture and chemistry critical for siRNA delivery. Here, diblock polymers varying in first (corona) and second (core) block molecular weight (Mn), corona/core ratio, and core hydrophobicity (%BMA) were synthesized to determine their effect on siRNA delivery in murine tenocytes (mTenocyte) and murine and human mesenchymal stem cells (mMSC and hMSCs, respectively). NP-mediated siRNA uptake, gene silencing, and cytocompatibility were quantified. Uptake is positively correlated with first block Mn in mTenocytes and hMSCs (p ≤ 0.0005). All NP resulted in significant gene silencing that was positively correlated with %BMA (p < 0.05) in all cell types. Cytocompatibility was reduced in mTenocytes compared to MSCs (p < 0.0001). %BMA was positively correlated with cytocompatibility in MSCs (p < 0.05), suggesting stable NP are more cytocompatible. Overall, this study shows that NP-siRNA cytocompatibility is cell type dependent, and hydrophobicity (%BMA) is the critical diblock copolymer property for efficient gene silencing in musculoskeletal cell types.
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Affiliation(s)
| | | | | | - Kenneth R Sims
- Translational Biomedical Science, University of Rochester School of Medicine and Dentistry , Rochester, New York, United States
| | - Hani A Awad
- Department of Orthopedics, University of Rochester Medical Center , Rochester, New York, United States
| | - Danielle S W Benoit
- Department of Orthopedics, University of Rochester Medical Center , Rochester, New York, United States
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25
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Monteiro N, Yelick PC. Advances and perspectives in tooth tissue engineering. J Tissue Eng Regen Med 2017; 11:2443-2461. [PMID: 27151766 PMCID: PMC6625321 DOI: 10.1002/term.2134] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Revised: 11/30/2015] [Accepted: 12/10/2015] [Indexed: 12/20/2022]
Abstract
Bio-engineered teeth that can grow and remodel in a manner similar to that of natural teeth have the potential to serve as permanent replacements to the currently used prosthetic teeth, such as dental implants. A major challenge in designing functional bio-engineered teeth is to mimic both the structural and anisotropic mechanical characteristics of the native tooth. Therefore, the field of dental and whole tooth regeneration has advanced towards the molecular and nanoscale design of bio-active, biomimetic systems, using biomaterials, drug delivery systems and stem cells. The focus of this review is to discuss recent advances in tooth tissue engineering, using biomimetic scaffolds that provide proper architectural cues, exhibit the capacity to support dental stem cell proliferation and differentiation and sequester and release bio-active agents, such as growth factors and nucleic acids, in a spatiotemporal controlled manner. Although many in vitro and in vivo studies on tooth regeneration appear promising, before tooth tissue engineering becomes a reality for humans, additional research is needed to perfect methods that use adult human dental stem cells, as opposed to embryonic dental stem cells, and to devise the means to generate bio-engineered teeth of predetermined size and shape. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Nelson Monteiro
- Department of Oral and Maxillofacial Pathology, Tufts University, Boston, MA, USA
| | - Pamela C. Yelick
- Department of Oral and Maxillofacial Pathology, Tufts University, Boston, MA, USA
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26
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Controlled and sustained delivery of siRNA/NPs from hydrogels expedites bone fracture healing. Biomaterials 2017; 139:127-138. [PMID: 28601703 DOI: 10.1016/j.biomaterials.2017.06.001] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Revised: 05/16/2017] [Accepted: 06/02/2017] [Indexed: 01/01/2023]
Abstract
Despite great potential, delivery remains as the most significant barrier to the widespread use of siRNA therapeutics. siRNA has delivery limitations due to susceptibility to RNase degradation, low cellular uptake, and poor tissue-specific localization. Here, we report the development of a hybrid nanoparticle (NP)/hydrogel system that overcomes these challenges. Hydrogels provide localized and sustained delivery via controlled release of entrapped siRNA/NP complexes while NPs protect and enable efficient cytosolic accumulation of siRNA. To demonstrate therapeutic efficacy, regenerative siRNA against WW domain-containing E3 ubiquitin protein ligase 1 (Wwp1) complexed with NP were entrapped within poly(ethylene glycol) (PEG)-based hydrogels and implanted at sites of murine mid-diaphyseal femur fractures. Results showed localization of hydrogels and controlled release of siRNA/NPs at fractures for 28 days, a timeframe over which fracture healing occurs. siRNA/NP sustained delivery from hydrogels resulted in significant Wwp1 silencing at fracture callus compared to untreated controls. Fractures treated with siRNA/NP hydrogels exhibited accelerated bone formation and significantly increased biomechanical strength. This NP/hydrogel siRNA delivery system has outstanding therapeutic promise to augment fracture healing. Owing to the structural similarities of siRNA, the development of the hydrogel platform for in vivo siRNA delivery has myriad therapeutic possibilities in orthopaedics and beyond.
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27
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Limbkar K, Dhenge A, Jadhav DD, Thulasiram HV, Kale V, Limaye L. Oral feeding with polyunsaturated fatty acids fosters hematopoiesis and thrombopoiesis in healthy and bone marrow-transplanted mice. J Nutr Biochem 2017; 47:94-105. [PMID: 28570944 DOI: 10.1016/j.jnutbio.2017.05.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Revised: 05/04/2017] [Accepted: 05/04/2017] [Indexed: 12/13/2022]
Abstract
Hematopoietic stem cells play the vital role of maintaining appropriate levels of cells in blood. Therefore, regulation of their fate is essential for their effective therapeutic use. Here we report the role of polyunsaturated fatty acids (PUFAs) in regulating hematopoiesis which has not been explored well so far. Mice were fed daily for 10 days with n-6/n-3 PUFAs, viz. linoleic acid (LA), arachidonic acid (AA), alpha-linolenic acid and docosahexanoic acid (DHA) in four separate test groups with phosphate-buffered saline fed mice as control set. The bone marrow cells of PUFA-fed mice showed a significantly higher hematopoiesis as assessed using side population, Lin-Sca-1+ckit+, colony-forming unit (CFU), long-term culture, CFU-spleen assay and engraftment potential as compared to the control set. Thrombopoiesis was also stimulated in PUFA-fed mice. A combination of DHA and AA was found to be more effective than when either was fed individually. Higher incorporation of PUFAs as well as products of their metabolism was observed in the bone marrow cells of PUFA-fed mice. A stimulation of the Wnt, CXCR4 and Notch1 pathways was observed in PUFA-fed mice. The clinical relevance of this study was evident when bone marrow-transplanted recipient mice, which were fed with PUFAs, showed higher engraftment of donor cells, suggesting that the bone marrow microenvironment may also be stimulated by feeding with PUFAs. These data indicate that oral administration of PUFAs in mice stimulates hematopoiesis and thrombopoiesis and could serve as a valuable supplemental therapy in situations of hematopoietic failure.
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MESH Headings
- Animals
- Bone Marrow Cells/cytology
- Bone Marrow Cells/metabolism
- Bone Marrow Transplantation/adverse effects
- Cells, Cultured
- Dietary Supplements/adverse effects
- Fatty Acids, Omega-3/adverse effects
- Fatty Acids, Omega-3/therapeutic use
- Fatty Acids, Omega-6/adverse effects
- Fatty Acids, Omega-6/therapeutic use
- Female
- Gene Expression Regulation
- Graft Survival
- Hematinics/therapeutic use
- Hematopoiesis
- Mice, Congenic
- Mice, Inbred C57BL
- Receptor, Notch1/agonists
- Receptor, Notch1/genetics
- Receptor, Notch1/metabolism
- Receptors, CXCR4/agonists
- Receptors, CXCR4/genetics
- Receptors, CXCR4/metabolism
- Thrombopoiesis
- Transplantation Conditioning/adverse effects
- Up-Regulation
- Wnt Proteins/agonists
- Wnt Proteins/genetics
- Wnt Proteins/metabolism
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Affiliation(s)
- Kedar Limbkar
- National Centre for Cell Science, NCCS Complex, Savitribai Phule Pune University Campus, Pune 411007, India
| | - Ankita Dhenge
- National Centre for Cell Science, NCCS Complex, Savitribai Phule Pune University Campus, Pune 411007, India
| | - Dipesh D Jadhav
- Chemical Biology Unit, Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
| | - Hirekodathakallu V Thulasiram
- Chemical Biology Unit, Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India; CSIR-Institute of Genomics and Integrative Biology, Mall Road, New Delhi 110007, India
| | - Vaijayanti Kale
- National Centre for Cell Science, NCCS Complex, Savitribai Phule Pune University Campus, Pune 411007, India
| | - Lalita Limaye
- National Centre for Cell Science, NCCS Complex, Savitribai Phule Pune University Campus, Pune 411007, India.
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28
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Malyshev IY, Yanushevich OO. [Tissue engineering of the tooth: directions of development, achievements and unresolved problems]. STOMATOLOGIIA 2017; 96:72-79. [PMID: 28858286 DOI: 10.17116/stomat201796472-79] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Affiliation(s)
- I Yu Malyshev
- Moscow State University of Medicine and Dentistry named after A.I. Evdokimov, Moscow, Russia
| | - O O Yanushevich
- Moscow State University of Medicine and Dentistry named after A.I. Evdokimov, Moscow, Russia
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29
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Shin J, Cho JH, Jin Y, Yang K, Lee JS, Park HJ, Han HS, Lee J, Jeon H, Shin H, Cho SW. Mussel Adhesion-Inspired Reverse Transfection Platform Enhances Osteogenic Differentiation and Bone Formation of Human Adipose-Derived Stem Cells. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2016; 12:6266-6278. [PMID: 27717233 DOI: 10.1002/smll.201601868] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Revised: 08/21/2016] [Indexed: 06/06/2023]
Abstract
Using small interfering RNA (siRNA) to regulate gene expression is an emerging strategy for stem cell manipulation to improve stem cell therapy. However, conventional methods of siRNA delivery into stem cells based on solution-mediated transfection are limited due to low transfection efficiency and insufficient duration of cell-siRNA contact during lengthy culturing protocols. To overcome these limitations, a bio-inspired polymer-mediated reverse transfection system is developed consisting of implantable poly(lactic-co-glycolic acid) (PLGA) scaffolds functionalized with siRNA-lipidoid nanoparticle (sLNP) complexes via polydopamine (pDA) coating. Immobilized sLNP complexes are stably maintained without any loss of siRNA on the pDA-coated scaffolds for 2 weeks, likely due to the formation of strong covalent bonds between amine groups of sLNP and catechol group of pDA. siRNA reverse transfection with the pDA-sLNP-PLGA system does not exhibit cytotoxicity and induces efficient silencing of an osteogenesis inhibitor gene in human adipose-derived stem cells (hADSCs), resulting in enhanced osteogenic differentiation of hADSCs. Finally, hADSCs osteogenically committed on the pDA-sLNP-PLGA scaffolds enhanced bone formation in a mouse model of critical-sized bone defect. Therefore, the bio-inspired reverse transfection system can provide an all-in-one platform for genetic modification, differentiation, and transplantation of stem cells, simultaneously enabling both stem cell manipulation and tissue engineering.
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Affiliation(s)
- Jisoo Shin
- Department of Biotechnology, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-749, Republic of Korea
| | - Jung Ho Cho
- Department of Biotechnology, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-749, Republic of Korea
| | - Yoonhee Jin
- Department of Biotechnology, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-749, Republic of Korea
| | - Kisuk Yang
- Department of Biotechnology, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-749, Republic of Korea
| | - Jong Seung Lee
- Department of Biotechnology, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-749, Republic of Korea
| | - Hyun-Ji Park
- Department of Biotechnology, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-749, Republic of Korea
| | - Hyung-Seop Han
- Center for Biomaterials, Korea Institute of Science and Technology, Seoul, 136-650, Republic of Korea
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, OX3 7LD, U.K
| | - Jinkyu Lee
- Department of Bioengineering, Hanyang University, Seoul, 133-791, Republic of Korea
| | - Hojeong Jeon
- Center for Biomaterials, Korea Institute of Science and Technology, Seoul, 136-650, Republic of Korea
| | - Heungsoo Shin
- Department of Bioengineering, Hanyang University, Seoul, 133-791, Republic of Korea
| | - Seung-Woo Cho
- Department of Biotechnology, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-749, Republic of Korea
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30
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Lee SS, Lee SJ, Lee SH, Ryu JM, Lim HS, Kim JS, Song EJ, Jung YH, Lee HJ, Kim CH, Han HJ. Netrin-1-Induced Stem Cell Bioactivity Contributes to the Regeneration of Injured Tissues via the Lipid Raft-Dependent Integrin α6β4 Signaling Pathway. Sci Rep 2016; 6:37526. [PMID: 27881869 PMCID: PMC5121594 DOI: 10.1038/srep37526] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Accepted: 10/31/2016] [Indexed: 11/17/2022] Open
Abstract
Netrin-1 (Ntn-1) is a multifunctional neuronal signaling molecule; however, its physiological significance, which improves the tissue-regeneration capacity of stem cells, has not been characterized. In the present study, we investigate the mechanism by which Ntn-1 promotes the proliferation of hUCB-MSCs with regard to the regeneration of injured tissues. We found that Ntn-1 induces the proliferation of hUCB-MSCs mainly via Inα6β4 coupled with c-Src. Ntn-1 induced the recruitment of NADPH oxidases and Rac1 into membrane lipid rafts to facilitate ROS production. The Inα6β4 signaling of Ntn-1 through ROS production is uniquely mediated by the activation of SP1 for cell cycle progression and the transcriptional occupancy of SP1 on the VEGF promoter. Moreover, Ntn-1 has the ability to induce the F-actin reorganization of hUCB-MSCs via the Inα6β4 signaling pathway. In an in vivo model, transplantation of hUCB-MSCs pre-treated with Ntn-1 enhanced the skin wound healing process, where relatively more angiogenesis was detected. The potential effect of Ntn-1 on angiogenesis is further verified by the mouse hindlimb ischemia model, where the pre-activation of hUCB-MSCs with Ntn-1 significantly improved vascular regeneration. These results demonstrate that Ntn-1 plays an important role in the tissue regeneration process of hUCB-MSC via the lipid raft-mediated Inα6β4 signaling pathway.
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Affiliation(s)
- Soo Sang Lee
- Department of plastic and reconstructive surgery, Bundang CHA Medical Center, Yatap-dong, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea.,SKY plastic surgery clinic, 4F, 826-23, Yeoksam-dong, Gangnam-gu, Seoul, Korea
| | - Sei-Jung Lee
- Department of Veterinary Physiology, College of Veterinary Medicine, Research Institute for Veterinary Science and BK21 PLUS Program for Creative Veterinary Science Research Center, Seoul National University, Seoul 08826, Korea
| | - Sang Hun Lee
- Medical Science Research Institute, Soonchunhyang University Seoul Hospital, Seoul, Korea
| | - Jung Min Ryu
- Department of Veterinary Physiology, College of Veterinary Medicine, Chonnam National University, Gwangju, Republic of Korea
| | - Hyeon Su Lim
- Department of Veterinary Physiology, College of Veterinary Medicine, Research Institute for Veterinary Science and BK21 PLUS Program for Creative Veterinary Science Research Center, Seoul National University, Seoul 08826, Korea
| | - Jun Sung Kim
- Department of Veterinary Physiology, College of Veterinary Medicine, Research Institute for Veterinary Science and BK21 PLUS Program for Creative Veterinary Science Research Center, Seoul National University, Seoul 08826, Korea
| | - Eun Ju Song
- Department of Veterinary Physiology, College of Veterinary Medicine, Research Institute for Veterinary Science and BK21 PLUS Program for Creative Veterinary Science Research Center, Seoul National University, Seoul 08826, Korea
| | - Young Hyun Jung
- Department of Veterinary Physiology, College of Veterinary Medicine, Research Institute for Veterinary Science and BK21 PLUS Program for Creative Veterinary Science Research Center, Seoul National University, Seoul 08826, Korea
| | - Hyun Jik Lee
- Department of Veterinary Physiology, College of Veterinary Medicine, Research Institute for Veterinary Science and BK21 PLUS Program for Creative Veterinary Science Research Center, Seoul National University, Seoul 08826, Korea
| | - Chung Hun Kim
- Department of plastic and reconstructive surgery, Bundang CHA Medical Center, Yatap-dong, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea
| | - Ho Jae Han
- Department of Veterinary Physiology, College of Veterinary Medicine, Research Institute for Veterinary Science and BK21 PLUS Program for Creative Veterinary Science Research Center, Seoul National University, Seoul 08826, Korea
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31
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Malcolm DW, Sorrells JE, Van Twisk D, Thakar J, Benoit DSW. Evaluating side effects of nanoparticle-mediated siRNA delivery to mesenchymal stem cells using next generation sequencing and enrichment analysis. Bioeng Transl Med 2016; 1:193-206. [PMID: 27981244 PMCID: PMC5125403 DOI: 10.1002/btm2.10035] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Revised: 09/06/2016] [Accepted: 09/13/2016] [Indexed: 12/11/2022] Open
Abstract
RNA interference has immense potential to modulate cell functions. However, effective delivery of small interfering RNA (siRNA) while avoiding deleterious side effects has proven challenging. This study investigates both intended and unintended effects of diblock copolymer nanoparticle (NP) delivery of siRNA delivery to human mesenchymal stem cells (hMSC). Specifically, siRNA delivery was investigated at a range of NP‐siRNA:hMSC ratios with a focus on the effects of NP‐siRNA treatment on hMSC functions. Additionally, next generation RNA sequencing (RNAseq) was used with enrichment analysis to observe side effects in hMSC gene expression. Results show NP‐siRNA delivery is negatively correlated with hMSC density. However, higher NP‐siRNA:hMSC ratios increased cytotoxicity and decreased metabolic activity. hMSC proliferation was largely unaffected by NP‐siRNA treatment, except for a threefold reduction in hMSCs seeded at 4,000 cells/cm2. Flow cytometry reveals that apoptosis is a function of NP‐siRNA treatment time and seeding density; ∼14% of the treated hMSCs seeded at 8,000 cells/cm2 were annexin V+‐siRNA+ 24 hr after treatment, while 11% of the treated population was annexin V+‐siRNA−. RNAseq shows that NP‐siRNA treatment results in transcriptomic changes in hMSCs, while pathway analysis shows upregulation of apoptosis signaling and downregulation of metabolism, cell cycle, and DNA replication pathways, as corroborated by apoptosis, metabolism, and proliferation assays. Additionally, multiple innate immune signaling pathways such as toll‐like receptor, RIG‐I‐like receptor, and nuclear factor‐κB signaling pathways are upregulated. Furthermore, and consistent with traditional siRNA immune activation, cytokine–cytokine receptor signaling was also upregulated. Overall, this study provides insight into NP‐siRNA:hMSC ratios that are favorable for siRNA delivery. Moreover, NP‐siRNA delivery results in side effects across the hMSC transcriptome that suggest activation of the innate immunity that could alter MSC functions associated with their therapeutic potential.
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Affiliation(s)
- Dominic W Malcolm
- Dept. of Biomedical Engineering University of Rochester Rochester NY 14627; Center for Musculoskeletal Research, University of Rochester Rochester NY14642
| | - Janet E Sorrells
- Dept. of Biomedical Engineering University of Rochester Rochester NY 14627
| | - Daniel Van Twisk
- Dept. of Microbiology and Immunology University of Rochester Rochester NY 14627
| | - Juilee Thakar
- Dept. of Microbiology and Immunology University of Rochester Rochester NY 14627; Dept. of Biostatistics and Computational Biology University of Rochester Rochester NY 14642
| | - Danielle S W Benoit
- Dept. of Biomedical Engineering University of Rochester Rochester NY 14627; Center for Musculoskeletal Research, University of Rochester Rochester NY 14642; Dept. of Chemical Engineering University of Rochester Rochester NY 14627
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32
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Fan C, Jia L, Zheng Y, Jin C, Liu Y, Liu H, Zhou Y. MiR-34a Promotes Osteogenic Differentiation of Human Adipose-Derived Stem Cells via the RBP2/NOTCH1/CYCLIN D1 Coregulatory Network. Stem Cell Reports 2016; 7:236-48. [PMID: 27453008 PMCID: PMC4982986 DOI: 10.1016/j.stemcr.2016.06.010] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Revised: 06/23/2016] [Accepted: 06/23/2016] [Indexed: 02/08/2023] Open
Abstract
MiR-34a was demonstrated to be upregulated during the osteogenic differentiation of human adipose-derived stem cells (hASCs). Overexpression of miR-34a significantly increased alkaline phosphatase activity, mineralization capacity, and the expression of osteogenesis-associated genes in hASCs in vitro. Enhanced heterotopic bone formation in vivo was also observed upon overexpression of miR-34a in hASCs. Mechanistic investigations revealed that miR-34a inhibited the expression of retinoblastoma binding protein 2 (RBP2) and reduced the luciferase activity of reporter gene construct comprising putative miR-34a binding sites in the 3′ UTR of RBP2. Moreover, miR-34a downregulated the expression of NOTCH1 and CYCLIN D1 and upregulated the expression of RUNX2 by targeting RBP2, NOTCH1, and CYCLIN D1. Taken together, our results suggested that miR-34a promotes the osteogenic differentiation of hASCs via the RBP2/NOTCH1/CYCLIN D1 coregulatory network, indicating that miR-34a-targeted therapy could be a valuable approach to promote bone regeneration. MiR-34a promotes osteogenesis of hASCs in vitro and in vivo MiR-34a directly binds to the 3′ UTR of RBP2 mRNA in hASCs MiR-34a promotes osteogenesis of hASCs via the RBP2/NOTCH1/CYCLIN D1 network
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Affiliation(s)
- Cong Fan
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing 100081, China; National Engineering Lab for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing 100081, China
| | - Lingfei Jia
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing 100081, China; Central Laboratory, Peking University School and Hospital of Stomatology, Beijing 100081, China; National Engineering Lab for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing 100081, China
| | - Yunfei Zheng
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing 100081, China; National Engineering Lab for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing 100081, China
| | - Chanyuan Jin
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing 100081, China; National Engineering Lab for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing 100081, China
| | - Yunsong Liu
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing 100081, China; National Engineering Lab for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing 100081, China
| | - Hao Liu
- Central Laboratory, Peking University School and Hospital of Stomatology, Beijing 100081, China; National Engineering Lab for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing 100081, China
| | - Yongsheng Zhou
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing 100081, China; National Engineering Lab for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing 100081, China.
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Raftery RM, Walsh DP, Castaño IM, Heise A, Duffy GP, Cryan SA, O'Brien FJ. Delivering Nucleic-Acid Based Nanomedicines on Biomaterial Scaffolds for Orthopedic Tissue Repair: Challenges, Progress and Future Perspectives. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:5447-5469. [PMID: 26840618 DOI: 10.1002/adma.201505088] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Revised: 11/27/2015] [Indexed: 06/05/2023]
Abstract
As well as acting to fill defects and allow for cell infiltration and proliferation in regenerative medicine, biomaterial scaffolds can also act as carriers for therapeutics, further enhancing their efficacy. Drug and protein delivery on scaffolds have shown potential, however, supraphysiological quantities of therapeutic are often released at the defect site, causing off-target side effects and cytotoxicity. Gene therapy involves the introduction of foreign genes into a cell in order to exert an effect; either replacing a missing gene or modulating expression of a protein. State of the art gene therapy also encompasses manipulation of the transcriptome by harnessing RNA interference (RNAi) therapy. The delivery of nucleic acid nanomedicines on biomaterial scaffolds - gene-activated scaffolds -has shown potential for use in a variety of tissue engineering applications, but as of yet, have not reached clinical use. The current state of the art in terms of biomaterial scaffolds and delivery vector materials for gene therapy is reviewed, and the limitations of current procedures discussed. Future directions in the clinical translation of gene-activated scaffolds are also considered, with a particular focus on bone and cartilage tissue regeneration.
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Affiliation(s)
- Rosanne M Raftery
- Tissue Engineering Research Group (TERG), Dept. of Anatomy, Royal College of Surgeons in Ireland (RCSI), 123, St. Stephens Green, Dublin 2, Dublin, Ireland
- Trinity Centre for Bioengineering (TCBE), Trinity College Dublin, Dublin 2, Dublin, Ireland
- Advanced Materials and Bioengineering Research Centre (AMBER), RCSI and TCD, Dublin, Ireland
- Drug Delivery and Advanced Materials Research Team, School of Pharmacy, Royal College of Surgeons in Ireland, 123, St. Stephens Green, Dublin 2, Dublin, Ireland
- Centre for Research in Medical Devices (CÚRAM), National University of Ireland Galway, Galway, Ireland
| | - David P Walsh
- Tissue Engineering Research Group (TERG), Dept. of Anatomy, Royal College of Surgeons in Ireland (RCSI), 123, St. Stephens Green, Dublin 2, Dublin, Ireland
- Trinity Centre for Bioengineering (TCBE), Trinity College Dublin, Dublin 2, Dublin, Ireland
- Advanced Materials and Bioengineering Research Centre (AMBER), RCSI and TCD, Dublin, Ireland
- Drug Delivery and Advanced Materials Research Team, School of Pharmacy, Royal College of Surgeons in Ireland, 123, St. Stephens Green, Dublin 2, Dublin, Ireland
- Centre for Research in Medical Devices (CÚRAM), National University of Ireland Galway, Galway, Ireland
| | - Irene Mencía Castaño
- Tissue Engineering Research Group (TERG), Dept. of Anatomy, Royal College of Surgeons in Ireland (RCSI), 123, St. Stephens Green, Dublin 2, Dublin, Ireland
- Trinity Centre for Bioengineering (TCBE), Trinity College Dublin, Dublin 2, Dublin, Ireland
- Advanced Materials and Bioengineering Research Centre (AMBER), RCSI and TCD, Dublin, Ireland
| | - Andreas Heise
- Tissue Engineering Research Group (TERG), Dept. of Anatomy, Royal College of Surgeons in Ireland (RCSI), 123, St. Stephens Green, Dublin 2, Dublin, Ireland
| | - Garry P Duffy
- Tissue Engineering Research Group (TERG), Dept. of Anatomy, Royal College of Surgeons in Ireland (RCSI), 123, St. Stephens Green, Dublin 2, Dublin, Ireland
- Trinity Centre for Bioengineering (TCBE), Trinity College Dublin, Dublin 2, Dublin, Ireland
- Advanced Materials and Bioengineering Research Centre (AMBER), RCSI and TCD, Dublin, Ireland
| | - Sally-Ann Cryan
- Tissue Engineering Research Group (TERG), Dept. of Anatomy, Royal College of Surgeons in Ireland (RCSI), 123, St. Stephens Green, Dublin 2, Dublin, Ireland
- Trinity Centre for Bioengineering (TCBE), Trinity College Dublin, Dublin 2, Dublin, Ireland
- Drug Delivery and Advanced Materials Research Team, School of Pharmacy, Royal College of Surgeons in Ireland, 123, St. Stephens Green, Dublin 2, Dublin, Ireland
- Centre for Research in Medical Devices (CÚRAM), National University of Ireland Galway, Galway, Ireland
| | - Fergal J O'Brien
- Tissue Engineering Research Group (TERG), Dept. of Anatomy, Royal College of Surgeons in Ireland (RCSI), 123, St. Stephens Green, Dublin 2, Dublin, Ireland
- Trinity Centre for Bioengineering (TCBE), Trinity College Dublin, Dublin 2, Dublin, Ireland
- Advanced Materials and Bioengineering Research Centre (AMBER), RCSI and TCD, Dublin, Ireland
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Li J, Lee WY, Wu T, Xu J, Zhang K, Li G, Xia J, Bian L. Multifunctional Quantum Dot Nanoparticles for Effective Differentiation and Long-Term Tracking of Human Mesenchymal Stem Cells In Vitro and In Vivo. Adv Healthc Mater 2016; 5:1049-57. [PMID: 26919348 DOI: 10.1002/adhm.201500879] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2015] [Revised: 12/18/2015] [Indexed: 12/22/2022]
Abstract
Human mesenchymal stem cells (hMSCs) hold great potential for regenerative medicine. Efficient induction of hMSC differentiation and better understanding of hMSCs behaviors in vitro and in vivo are essential to the clinical translation of stem cell therapy. Here a quantum dots (QDs)-based multifunctional nanoparticle (RGD-β-CD-QDs) is developed for effective enhancing differentiation and long-term tracking of hMSCs in vitro and in vivo. The RGD-β-CD-QDs are modified with β-cyclodextrin (β-CD) and Cys-Lys-Lys-Arg-Gly-Asp (CKKRGD) peptide on the surface. The β-CD can harbor hydrophobic osteogenic small molecule dexamethasone (Dex) and the RGD peptide not only facilitates the complexation of siRNA and delivers siRNA into hMSCs but also leads to cellular uptake of nanoparticles by RGD receptor. Co-delivery of Dex and siRNA by RGD-β-CD-QDs nanocarrier significantly expedites and enhances the osteogenesis differentiation of hMSCs in vitro and in vivo by combined effect of small molecule and RNAi. Furthermore, the RGD-β-CD-QDs can be labeled with hMSCs for a long-term tracking (3 weeks) in vivo to observe the behaviors of implanted hMSCs in animal level. These findings demonstrate that the RGD-β-CD-QDs nanocarrier provides a powerful tool to simultaneously enhance differentiation and long-term tracking of hMSCs in vitro and in vivo for regenerative medicine.
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Affiliation(s)
- Jinming Li
- Department of Mechanical and Automation Engineering; The Chinese University of Hong Kong; Hong Kong
| | - Wayne Yukwai Lee
- Faculty of Medicine; The Chinese University of Hong Kong; Hong Kong
| | - Tianyi Wu
- Faculty of Medicine; The Chinese University of Hong Kong; Hong Kong
| | - Jianbin Xu
- Department of Mechanical and Automation Engineering; The Chinese University of Hong Kong; Hong Kong
| | - Kunyu Zhang
- Department of Mechanical and Automation Engineering; The Chinese University of Hong Kong; Hong Kong
| | - Gang Li
- Faculty of Medicine; The Chinese University of Hong Kong; Hong Kong
| | - Jiang Xia
- Department of Chemistry; The Chinese University of Hong Kong; Shatin Hong Kong SAR China
| | - Liming Bian
- Department of Mechanical and Automation Engineering; The Chinese University of Hong Kong; Hong Kong
- Shenzhen Research Institute; The Chinese University of Hong Kong; Hong Kong
- China Orthopedic Regenerative Medicine Group (CORMed); Hong Kong China
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Chueng STD, Yang L, Zhang Y, Lee KB. Multidimensional nanomaterials for the control of stem cell fate. NANO CONVERGENCE 2016; 3:23. [PMID: 28191433 PMCID: PMC5271342 DOI: 10.1186/s40580-016-0083-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Accepted: 09/07/2016] [Indexed: 05/17/2023]
Abstract
Current stem cell therapy suffers low efficiency in giving rise to differentiated cell lineages, which can replace the original damaged cells. Nanomaterials, on the other hand, provide unique physical size, surface chemistry, conductivity, and topographical microenvironment to regulate stem cell differentiation through multidimensional approaches to facilitate gene delivery, cell-cell, and cell-ECM interactions. In this review, nanomaterials are demonstrated to work both alone and synergistically to guide selective stem cell differentiation. From three different nanotechnology families, three approaches are shown: (1) soluble microenvironmental factors; (2) insoluble physical microenvironment; and (3) nano-topographical features. As regenerative medicine is heavily invested in effective stem cell therapy, this review is inspired to generate discussions in the potential clinical applications of multi-dimensional nanomaterials.
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Affiliation(s)
- Sy-Tsong Dean Chueng
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, NJ 08854 USA
| | - Letao Yang
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, NJ 08854 USA
| | - Yixiao Zhang
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, NJ 08854 USA
| | - Ki-Bum Lee
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, NJ 08854 USA
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Cui ZK, Fan J, Kim S, Bezouglaia O, Fartash A, Wu BM, Aghaloo T, Lee M. Delivery of siRNA via cationic Sterosomes to enhance osteogenic differentiation of mesenchymal stem cells. J Control Release 2015; 217:42-52. [PMID: 26302903 DOI: 10.1016/j.jconrel.2015.08.031] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Accepted: 08/15/2015] [Indexed: 01/09/2023]
Abstract
Noggin is a specific antagonist of bone morphogenetic proteins (BMPs) that can prevent the interaction of BMPs with their receptors. RNA interfering molecules have been used to downregulate noggin expression and thereby stimulate BMP signaling and osteogenesis. Cationic liposomes are considered one of the most efficient non-viral systems for gene delivery. In the past decade, non-phospholipid liposomes (Sterosomes) formulated with single-chain amphiphiles and high content of sterols have been developed. In particular, Sterosomes composed of stearylamine (SA) and cholesterol (Chol) display distinct properties compared with traditional phospholipid liposomes, including increased positive surface charges and enhanced particle stability. Herein, we report SA/Chol Sterosome and small interfering RNA (siRNA) complexes that significantly enhanced cellular uptake and gene knockdown efficiencies in adipose derived mesenchymal stem cells with minimal cytotoxicity compared with commercially available lipofectamine 2000. Furthermore, we confirmed osteogenic efficacy of these Sterosomes loaded with noggin siRNA in in vitro two- and three-dimensional settings as well as in a mouse calvarial defect model. The delivery of siRNA via novel SA/Chol Sterosomes presents a powerful method for efficient gene knockdown. These distinct nanoparticles may present a promising alternative approach for gene delivery.
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Affiliation(s)
- Zhong-Kai Cui
- Division of Advanced Prosthodontics, University of California Los Angeles, 10833 Le Conte Avenue, Los Angeles, CA 90095, United States
| | - Jiabing Fan
- Division of Advanced Prosthodontics, University of California Los Angeles, 10833 Le Conte Avenue, Los Angeles, CA 90095, United States
| | - Soyon Kim
- Department of Bioengineering, University of California Los Angeles, 420 Westwood Plaza, Los Angeles, CA 90095, United States
| | - Olga Bezouglaia
- Division of Diagnostic and Surgical Sciences, University of California Los Angeles, 10833 Le Conte Avenue, Los Angeles, CA 90095, United States
| | - Armita Fartash
- Division of Diagnostic and Surgical Sciences, University of California Los Angeles, 10833 Le Conte Avenue, Los Angeles, CA 90095, United States
| | - Benjamin M Wu
- Division of Advanced Prosthodontics, University of California Los Angeles, 10833 Le Conte Avenue, Los Angeles, CA 90095, United States; Department of Bioengineering, University of California Los Angeles, 420 Westwood Plaza, Los Angeles, CA 90095, United States
| | - Tara Aghaloo
- Division of Diagnostic and Surgical Sciences, University of California Los Angeles, 10833 Le Conte Avenue, Los Angeles, CA 90095, United States
| | - Min Lee
- Division of Advanced Prosthodontics, University of California Los Angeles, 10833 Le Conte Avenue, Los Angeles, CA 90095, United States; Department of Bioengineering, University of California Los Angeles, 420 Westwood Plaza, Los Angeles, CA 90095, United States.
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37
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Neuronal Differentiation of Human Mesenchymal Stem Cells Using Exosomes Derived from Differentiating Neuronal Cells. PLoS One 2015; 10:e0135111. [PMID: 26248331 PMCID: PMC4527703 DOI: 10.1371/journal.pone.0135111] [Citation(s) in RCA: 107] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Accepted: 07/17/2015] [Indexed: 12/17/2022] Open
Abstract
Exosomes deliver functional proteins and genetic materials to neighboring cells, and have potential applications for tissue regeneration. One possible mechanism of exosome-promoted tissue regeneration is through the delivery of microRNA (miRNA). In this study, we hypothesized that exosomes derived from neuronal progenitor cells contain miRNAs that promote neuronal differentiation. We treated mesenchymal stem cells (MSCs) daily with exosomes derived from PC12 cells, a neuronal cell line, for 1 week. After the treatment with PC12-derived exosomes, MSCs developed neuron-like morphology, and gene and protein expressions of neuronal markers were upregulated. Microarray analysis showed that the expression of miR-125b, which is known to play a role in neuronal differentiation of stem cells, was much higher in PC12-derived exosomes than in exosomes from B16-F10 melanoma cells. These results suggest that the delivery of miRNAs contained in PC12-derived exosomes is a possible mechanism explaining the neuronal differentiation of MSC.
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38
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Beavers KR, Nelson CE, Duvall CL. MiRNA inhibition in tissue engineering and regenerative medicine. Adv Drug Deliv Rev 2015; 88:123-37. [PMID: 25553957 PMCID: PMC4485980 DOI: 10.1016/j.addr.2014.12.006] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Revised: 11/25/2014] [Accepted: 12/20/2014] [Indexed: 12/17/2022]
Abstract
MicroRNAs (miRNAs) are noncoding RNAs that provide an endogenous negative feedback mechanism for translation of messenger RNA (mRNA) into protein. Single miRNAs can regulate hundreds of mRNAs, enabling miRNAs to orchestrate robust biological responses by simultaneously impacting multiple gene networks. MiRNAs can act as master regulators of normal and pathological tissue development, homeostasis, and repair, which has motivated expanding efforts toward the development of technologies for therapeutically modulating miRNA activity for regenerative medicine and tissue engineering applications. This review highlights the tools currently available for miRNA inhibition and their recent therapeutic applications for improving tissue repair.
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Affiliation(s)
- Kelsey R Beavers
- Interdisciplinary Graduate Program in Materials Science, Vanderbilt University, Nashville, TN 37235, USA
| | | | - Craig L Duvall
- Interdisciplinary Graduate Program in Materials Science, Vanderbilt University, Nashville, TN 37235, USA; Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37235, USA.
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Ong SG, Lee WH, Kodo K, Wu JC. MicroRNA-mediated regulation of differentiation and trans-differentiation in stem cells. Adv Drug Deliv Rev 2015; 88:3-15. [PMID: 25887992 DOI: 10.1016/j.addr.2015.04.004] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Revised: 03/26/2015] [Accepted: 04/06/2015] [Indexed: 12/21/2022]
Abstract
MicroRNAs (miRNAs) are key components of a broadly conserved post-transcriptional mechanism that controls gene expression by targeting mRNAs. miRNAs regulate diverse biological processes, including the growth and differentiation of stem cells as well as the regulation of both endogenous tissue repair that has critical implications in the development of regenerative medicine approaches. In this review, we first describe key features of miRNA biogenesis and their role in regulating self-renewal, and then discuss the involvement of miRNAs in the determination of cell fate decisions. We highlight the role of miRNAs in the emergent field of reprogramming and trans-differentiation of somatic cells that could further our understanding of miRNA biology and regenerative medicine applications. Finally, we describe potential techniques for proper delivery of miRNAs in target cells.
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Affiliation(s)
- Sang-Ging Ong
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, United States; Department of Medicine, Division of Cardiology, Stanford University School of Medicine, Stanford, CA, United States
| | - Won Hee Lee
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, United States; Department of Medicine, Division of Cardiology, Stanford University School of Medicine, Stanford, CA, United States
| | - Kazuki Kodo
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, United States; Department of Medicine, Division of Cardiology, Stanford University School of Medicine, Stanford, CA, United States
| | - Joseph C Wu
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, United States; Department of Medicine, Division of Cardiology, Stanford University School of Medicine, Stanford, CA, United States; Department of Radiology, Stanford University School of Medicine, Stanford, CA, United States; Institute of Stem Cell Biology & Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, United States.
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40
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Nguyen LH, Diao HJ, Chew SY. MicroRNAs and their potential therapeutic applications in neural tissue engineering. Adv Drug Deliv Rev 2015; 88:53-66. [PMID: 25980934 DOI: 10.1016/j.addr.2015.05.007] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2015] [Revised: 05/08/2015] [Accepted: 05/10/2015] [Indexed: 01/01/2023]
Abstract
The inherent poor regeneration capacity of nerve tissues, especially in the central nervous system, poses a grand challenge for neural tissue engineering. After injuries, the local microenvironment often contains potent inhibitory molecules and glial scars, which do not actively support axonal regrowth. MicroRNAs can direct fate of neural cells and are tightly controlled during nerve development. Thus, RNA interference using microRNAs is a promising method to enhance nerve regeneration. Although the physiological roles of microRNA expression levels in various cellular activities or disease conditions have been extensively investigated, the translational use of these understanding for neural tissue engineering remains limited. This review aims to highlight essential microRNAs that participate in cellular behaviors within the adult nervous system and their potential therapeutic applications. In addition, possible delivery methods are also suggested for effective gene silencing in neural tissue engineering.
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Affiliation(s)
- Lan Huong Nguyen
- Division of Chemical and Biomolecular Engineering, School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459, Singapore
| | - Hua Jia Diao
- Division of Chemical and Biomolecular Engineering, School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459, Singapore
| | - Sing Yian Chew
- Division of Chemical and Biomolecular Engineering, School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459, Singapore; Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 308232, Singapore.
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41
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Light-activated RNA interference in human embryonic stem cells. Biomaterials 2015; 63:70-9. [PMID: 26086448 DOI: 10.1016/j.biomaterials.2015.06.006] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Revised: 06/03/2015] [Accepted: 06/06/2015] [Indexed: 12/15/2022]
Abstract
We describe a near infrared (NIR) light-activated gene silencing method in undifferentiated human embryonic stem cell (hESC) using a plasmonic hollow gold nanoshell (HGN) as the siRNA carrier. Our modular biotin-streptavidin coupling strategy enables positively charged TAT-peptide to coat oligonucleotides-saturated nanoparticles as a stable colloid formation. TAT-peptide coated nanoparticles with dense siRNA loading show efficient penetration into a wide variety of hESC cell lines. The siRNA is freed from the nanoparticles and delivered to the cytosol by femtosecond pulses of NIR light with potentially exquisite spatial and temporal control. The effectiveness of this approach is shown by targeting GFP and Oct4 genes in undifferentiated hESC (H9). The accelerated expression of differentiation markers for all three germ layers resulting from Oct4 knockdown confirms that this method has no detectable adverse effects that limit the range of differentiation. This biocompatible and NIR laser-activated patterning method makes possible single cell resolution of siRNA delivery for diverse studies in stem cell biology, tissue engineering and regenerative medicine.
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42
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Wang Z, Zhang D, Hu Z, Cheng J, Zhuo C, Fang X, Xing Y. MicroRNA-26a-modified adipose-derived stem cells incorporated with a porous hydroxyapatite scaffold improve the repair of bone defects. Mol Med Rep 2015; 12:3345-3350. [PMID: 25997460 PMCID: PMC4526070 DOI: 10.3892/mmr.2015.3795] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Accepted: 04/30/2015] [Indexed: 11/05/2022] Open
Abstract
Tissue-engineered bone substitutes are frequently used to repair bone defects. Adipose-derived stem cells (ASCs) are a promising source of cells for repairing bone tissue, however, insufficient osteogenic potency remains the main obstacle for their application. The present study aimed to enhance the osteogenic potency of ASCs by transfection of microRNA (miR)-26a, a novel osteogenic and angiogenic promoting miRNA. An inverted fluorescence microscope was used to observe transfection efficiency, while a scanning electron microscope was used to detect morphological alterations. Cell proliferation was monitored continuously for 7 days using a Cell Counting kit-8 assay. Osteogenic differentiation was determined by reverse transcription quantitative polymerase chain reaction, alkaline phosphatase (ALP) staining, collagen secretion and extracellular matrix (ECM) mineralization. ASCs were incorporated with a porous hydroxyapatite (HA) scaffold to create a novel tissue-engineered bone substitute and inserted into the critical tibia defect of rats. New bone formation was evaluated by hematoxylin and eosin and Masson's trichrome staining. The results demonstrated that miR-26a was successfully delivered into the cytoplasm, while the morphology and proliferation of ASCs were not significantly altered. Osteogenic-associated genes were markedly upregulated and ALP production, collagen secretion and ECM mineralization were all increased following transfection of miR-26a. Histological evaluation demonstrated that the modified cells accompanied with a porous HA scaffold markedly promoted new bone formation within the defective area. In conclusion, miR-26a transfection significantly improved the osteogenic potency of ASCs suggesting that modified ASCs incorporated with a HA scaffold may be used as a potential bone substitute.
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Affiliation(s)
- Zhenlin Wang
- Department of Orthopaedics, No. 113 Hospital of PLA, Ningbo, Zhejiang 315000, P.R. China
| | - Dawei Zhang
- Department of Orthopaedics, Xijing Hospital of PLA, Xi'an, Shaanxi 710032, P.R. China
| | - Zhiqiang Hu
- Department of Otorhinolaryngology, No. 113 Hospital of PLA, Ningbo, Zhejiang 315000, P.R. China
| | - Jiwei Cheng
- Department of Orthopaedics, No. 113 Hospital of PLA, Ningbo, Zhejiang 315000, P.R. China
| | - Chuanmeng Zhuo
- Department of Orthopaedics, No. 113 Hospital of PLA, Ningbo, Zhejiang 315000, P.R. China
| | - Xiancong Fang
- Department of Orthopaedics, No. 113 Hospital of PLA, Ningbo, Zhejiang 315000, P.R. China
| | - Yongming Xing
- Department of Orthopaedics, No. 113 Hospital of PLA, Ningbo, Zhejiang 315000, P.R. China
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43
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Oh SY, Lee SJ, Jung YH, Lee HJ, Han HJ. Arachidonic acid promotes skin wound healing through induction of human MSC migration by MT3-MMP-mediated fibronectin degradation. Cell Death Dis 2015; 6:e1750. [PMID: 25950480 PMCID: PMC4669694 DOI: 10.1038/cddis.2015.114] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Revised: 03/09/2015] [Accepted: 03/23/2015] [Indexed: 12/17/2022]
Abstract
Arachidonic acid (AA) is largely released during injury, but it has not been fully studied yet how AA modulates wound repair with stem cells. Therefore, we investigated skin wound-healing effect of AA-stimulated human umbilical cord blood-derived mesenchymal stem cells (hUCB-MSCs) in vivo and its molecular mechanism in vitro. We found that transplantation of hUCB-MSCs pre-treated with AA enhanced wound filling, re-epithelization, and angiogenesis in a mouse skin excisional wound model. AA significantly promoted hUCB-MSCs migration after a 24 h incubation, which was inhibited by the knockdown of G-protein-coupled receptor 40 (GPR40). AA activated mammalian target of rapamycin complex 2 (mTORC2) and Aktser473 through the GPR40/phosphoinositide 3-kinase (PI3K) signaling, which was responsible for the stimulation of an atypical protein kinase C (PKC) isoform, PKCζ. Subsequently, AA stimulated phosphorylation of p38 MAPK and transcription factor Sp1, and induced membrane type 3-matrix metalloproteinase (MT3-MMP)-dependent fibronectin degradation in promoting hUCB-MSCs motility. Finally, the silencing of MT3-MMP in AA-stimulated hUCB-MSCs failed to promote the repair of skin wounds owing to impaired cell motility. In conclusion, AA enhances skin wound healing through induction of hUCB-MSCs motility by MT3-MMP-mediated fibronectin degradation, which relies on GPR40-dependent mTORC2 signaling pathways.
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Affiliation(s)
- S Y Oh
- Department of Veterinary Physiology, College of Veterinary Medicine, Research Institute for Veterinary Science, and BK21 PLUS Creative Veterinary Research Center, Seoul National University, Seoul, 151-741, Korea
| | - S-J Lee
- Department of Veterinary Physiology, College of Veterinary Medicine, Research Institute for Veterinary Science, and BK21 PLUS Creative Veterinary Research Center, Seoul National University, Seoul, 151-741, Korea
| | - Y H Jung
- Department of Veterinary Physiology, College of Veterinary Medicine, Research Institute for Veterinary Science, and BK21 PLUS Creative Veterinary Research Center, Seoul National University, Seoul, 151-741, Korea
| | - H J Lee
- Department of Veterinary Physiology, College of Veterinary Medicine, Research Institute for Veterinary Science, and BK21 PLUS Creative Veterinary Research Center, Seoul National University, Seoul, 151-741, Korea
| | - H J Han
- Department of Veterinary Physiology, College of Veterinary Medicine, Research Institute for Veterinary Science, and BK21 PLUS Creative Veterinary Research Center, Seoul National University, Seoul, 151-741, Korea
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44
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Diao HJ, Low WC, Milbreta U, Lu QR, Chew SY. Nanofiber-mediated microRNA delivery to enhance differentiation and maturation of oligodendroglial precursor cells. J Control Release 2015; 208:85-92. [PMID: 25747407 DOI: 10.1016/j.jconrel.2015.03.005] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2014] [Revised: 02/18/2015] [Accepted: 03/01/2015] [Indexed: 01/29/2023]
Abstract
Remyelination in the central nervous system (CNS) is critical in the treatment of many neural pathological conditions. Unfortunately, the ability to direct and enhance oligodendrocyte (OL) differentiation and maturation remains limited. It is known that microenvironmental signals, such as substrate topography and biochemical signaling, regulate cell fate commitment. Therefore, in this study, we developed a nanofiber-mediated microRNA (miR) delivery method to control oligodendroglial precursor cell (OPC) differentiation through a combination of fiber topography and gene silencing. Using poly(ε-caprolactone) nanofibers, efficient knockdown of OL differentiation inhibitory regulators were achieved by either nanofiber alone (20-40%, p<0.05) or the synergistic integration with miR-219 and miR-338 (up to 60%, p<0.05). As compared to two-dimensional culture, nanofiber topography enhanced OPC differentiation by inducing 2-fold increase in RIP(+) cells (p<0.01) while the presence of miRs further enhanced the result to 3-fold (p<0.001). In addition, nanofiber-mediated delivery of miR-219 and miR-338 promoted OL maturation by increasing the number of MBP(+) cells significantly (p<0.01). Taken together, the results demonstrate the efficacy of nanofibers in providing topographical cues and microRNA reverse transfection to direct OPC differentiation. Such scaffolds may find useful applications in directing oligodendrocyte differentiation and myelination for treatment of CNS pathological conditions that require remyelination.
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Affiliation(s)
- Hua Jia Diao
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459, Singapore
| | - Wei Ching Low
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459, Singapore
| | - Ulla Milbreta
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459, Singapore
| | - Q Richard Lu
- Department of Pediatrics, Division of Experimental Hematology and Cancer Biology, Cancer and Blood Diseases Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Sing Yian Chew
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459, Singapore; Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 308232, Singapore.
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45
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Pandit V, Watson A, Ren L, Mixon A, Kotha SP. Multilayered Nanoparticles for Gene Delivery Used to Reprogram Human Foreskin Fibroblasts to Neurospheres. Tissue Eng Part C Methods 2015; 21:786-94. [PMID: 25687130 DOI: 10.1089/ten.tec.2014.0482] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Polycationic nanocomplexes are a robust means for achieving nucleic acid condensation and efficient intracellular gene deliveries. To enhance delivery, a multilayered nanoparticle consisting of a core of electrostatically bound elements was used. These included a histone-mimetic peptides, poly-l-arginine and poly-d-glutamic acid was coated with silicate before surface functionalization with poly-l-arginine. Transfection efficiencies and duration of expression were similar when using green fluorescent protein (GFP) plasmid DNA (pDNA) or GFP mRNA. These nanoparticles demonstrated significantly higher (>100%) and significantly longer (15 vs. 4 days) transfection efficiencies in comparison to a commercial transfection agent (Lipofectamine 2000). Reprogramming of human foreskin fibroblasts using mRNA to the Sox2 transcription factor resulted in three-fold higher neurosphere formation in comparison to the commercial reagent. These results demonstrate the potential of these nanoparticles as ideal vectors for gene delivery.
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Affiliation(s)
- Vaibhav Pandit
- 1 Department of Biomedical Engineering, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute , Troy, New York
| | | | - Liyun Ren
- 3 Department of Material Science and Engineering, Rensselaer Polytechnic Institute , Troy, New York
| | - Amanda Mixon
- 1 Department of Biomedical Engineering, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute , Troy, New York
| | - Shiva P Kotha
- 1 Department of Biomedical Engineering, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute , Troy, New York
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A novel collagen-nanohydroxyapatite microRNA-activated scaffold for tissue engineering applications capable of efficient delivery of both miR-mimics and antagomiRs to human mesenchymal stem cells. J Control Release 2014; 200:42-51. [PMID: 25550154 DOI: 10.1016/j.jconrel.2014.12.034] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Revised: 12/23/2014] [Accepted: 12/24/2014] [Indexed: 12/15/2022]
Abstract
Manipulation of gene expression through the use of microRNAs (miRNAs) offers tremendous potential for the field of tissue engineering. However, the lack of sufficient site-specific and bioactive delivery systems has severely hampered the clinical translation of miRNA-based therapies. In this study, we developed a novel non-viral bioactive delivery platform for miRNA mimics and antagomiRs to allow for a vast range of therapeutic applications. By combining nanohydroxyapatite (nHA) particles with reporter miRNAs (nanomiRs) and collagen-nanohydroxyapatite scaffolds, this work introduces the first non-viral, non-lipid platform to date, capable of efficient delivery of mature miRNA molecules to human mesenchymal stem cells (hMSCs), a particularly difficult cell type to transfect effectively, with minimal treatment-associated cytotoxicity. Firstly, miRNAs were successfully delivered to hMSCs in monolayer, with internalisation efficiencies of 17.4 and 39.6% for nanomiR-mimics and nanoantagomiRs respectively, and both nanomiR-mimics and nanoantagomiRs yielded sustained interfering activity of greater than 90% in monolayer over 7 days. When applied to 3D scaffolds, significant RNA interference of 20% for nanomiR-mimics and 88.4% for nanoantagomiRs was achieved with no cytotoxicity issues over a 7 day period. In summary, in-house synthesised non-viral nHA particles efficiently delivered reporter miRNAs both in monolayer and on scaffolds demonstrating the immense potential of this innovative miRNA-activated scaffold system for tissue engineering applications.
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Kang JX, Wan JB, He C. Concise review: Regulation of stem cell proliferation and differentiation by essential fatty acids and their metabolites. Stem Cells 2014; 32:1092-8. [PMID: 24356924 DOI: 10.1002/stem.1620] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2013] [Revised: 11/08/2013] [Accepted: 11/26/2013] [Indexed: 12/17/2022]
Abstract
Stem cell therapy holds great promise for regenerative medicine and the treatment of numerous diseases. A key issue of stem cell therapy is the control of stem cell fate, but safe and practical methods are limited. Essential fatty acids, namely ω-6 (n-6) and ω-3 (n-3) polyunsaturated fatty acids (PUFA), and their metabolites are critical components of cell structure and function, and could therefore influence stem cell fate. The available evidence demonstrates that n-6 and n-3 PUFA and their metabolites can act through multiple mechanisms to promote the proliferation and differentiation of various stem cell types. Therefore, elucidating the role of PUFA and their metabolites in stem cell fate regulation is both a challenge and an opportunity for stem cell biology as well as stem cell therapy. PUFA-based interventions to create a favorable environment for stem cell proliferation or differentiation may thus be a promising and practical approach to controlling stem cell fate for clinical applications.
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Affiliation(s)
- Jing X Kang
- Laboratory for Lipid Medicine and Technology, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
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48
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Monteiro N, Martins A, Reis RL, Neves NM. Liposomes in tissue engineering and regenerative medicine. J R Soc Interface 2014; 11:20140459. [PMID: 25401172 PMCID: PMC4223894 DOI: 10.1098/rsif.2014.0459] [Citation(s) in RCA: 211] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2014] [Accepted: 10/02/2014] [Indexed: 01/13/2023] Open
Abstract
Liposomes are vesicular structures made of lipids that are formed in aqueous solutions. Structurally, they resemble the lipid membrane of living cells. Therefore, they have been widely investigated, since the 1960s, as models to study the cell membrane, and as carriers for protection and/or delivery of bioactive agents. They have been used in different areas of research including vaccines, imaging, applications in cosmetics and tissue engineering. Tissue engineering is defined as a strategy for promoting the regeneration of tissues for the human body. This strategy may involve the coordinated application of defined cell types with structured biomaterial scaffolds to produce living structures. To create a new tissue, based on this strategy, a controlled stimulation of cultured cells is needed, through a systematic combination of bioactive agents and mechanical signals. In this review, we highlight the potential role of liposomes as a platform for the sustained and local delivery of bioactive agents for tissue engineering and regenerative medicine approaches.
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Affiliation(s)
- Nelson Monteiro
- 3B's Research Group—Biomaterials, Biodegradables and Biomimetics Department of Polymer Engineering, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Zona Industrial da Gandra S. Cláudio do Barco, 4806-909, Caldas das Taipas, Guimarães, Portugal
- ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Albino Martins
- 3B's Research Group—Biomaterials, Biodegradables and Biomimetics Department of Polymer Engineering, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Zona Industrial da Gandra S. Cláudio do Barco, 4806-909, Caldas das Taipas, Guimarães, Portugal
- ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Rui L. Reis
- 3B's Research Group—Biomaterials, Biodegradables and Biomimetics Department of Polymer Engineering, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Zona Industrial da Gandra S. Cláudio do Barco, 4806-909, Caldas das Taipas, Guimarães, Portugal
- ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Nuno M. Neves
- 3B's Research Group—Biomaterials, Biodegradables and Biomimetics Department of Polymer Engineering, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Zona Industrial da Gandra S. Cláudio do Barco, 4806-909, Caldas das Taipas, Guimarães, Portugal
- ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães, Portugal
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Yau WWY, Long H, Gauthier NC, Chan JKY, Chew SY. The effects of nanofiber diameter and orientation on siRNA uptake and gene silencing. Biomaterials 2014; 37:94-106. [PMID: 25453941 DOI: 10.1016/j.biomaterials.2014.10.003] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Accepted: 10/02/2014] [Indexed: 02/07/2023]
Abstract
While substrate topography influences cell behavior, RNA interference (RNAi) has also emerged as a potent method for understanding and directing cell fate. However, the effects of substrate topography on RNAi remain poorly understood. Here, we report the influence of nanofiber architecture on siRNA-mediated gene-silencing in human somatic and stem cells. The respective model cells, human dermal fibroblasts (HDFs) and mesenchymal stem cells (MSCs), were cultured onto aligned or randomly oriented electrospun poly(ε-caprolactone) fibers of different average diameters (300 nm, 700 nm and 1.3 μm). In HDFs, decreasing fiber diameter from 1.3 μm to 300 nm improved Glyceraldehyde 3-phosphate dehydrogenase (GAPDH) and Collagen-I silencing efficiencies by ∼ 3.8 and ∼4.4 folds respectively (p < 0.05) while the effective siRNA uptake pathway was altered from clathrin-dependent endocytosis to macropinocytosis. In MSCs, aligned fibers generated significantly higher level of gene silencing of RE-1 silencing transcription factor (REST) and green fluorescent protein (GFP) (∼1.6 and ∼1.5 folds respectively, p < 0.05), than randomly-oriented fibers. Aligned fiber topography facilitated functional siRNA uptake through clathrin-mediated endocytosis and membrane fusion. Taken together, our results demonstrated a promising role of three-dimensional fibrous scaffolds in modulating siRNA-mediated gene-silencing and established the critical synergistic role of these substrates in modulating cellular behavior by RNAi.
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Affiliation(s)
- Winifred Wing Yiu Yau
- Division of Chemical and Biomolecular Engineering, School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459, Singapore
| | - Hongyan Long
- Division of Chemical and Biomolecular Engineering, School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459, Singapore
| | - Nils C Gauthier
- Mechanobiology Institute, National University of Singapore, 5A Engineering Drive 1, Singapore 117411, Singapore
| | - Jerry Kok Yen Chan
- Department of Obstetrics and Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119074, Singapore; Department of Reproductive Medicine, KK Women's and Children's Hospital, Singapore 229899, Singapore; Cancer and Stem Cell Biology, Duke-NUS Graduate Medical School, Singapore 169857, Singapore
| | - Sing Yian Chew
- Division of Chemical and Biomolecular Engineering, School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459, Singapore; Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 308232, Singapore.
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50
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Monteiro N, Ribeiro D, Martins A, Faria S, Fonseca NA, Moreira JN, Reis RL, Neves NM. Instructive nanofibrous scaffold comprising runt-related transcription factor 2 gene delivery for bone tissue engineering. ACS NANO 2014; 8:8082-8094. [PMID: 25046548 DOI: 10.1021/nn5021049] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Inducer molecules capable of regulating mesenchymal stem cell differentiation into specific lineages have proven effective in basic science and in preclinical studies. Runt-related transcription factor 2 (RUNX2) is considered to be the central gene involved in the osteoblast phenotype induction, which may be advantageous for inducing bone tissue regeneration. This work envisions the development of a platform for gene delivery, combining liposomes as gene delivery devices, with electrospun nanofiber mesh (NFM) as a tissue engineering scaffold. pDNA-loaded liposomes were immobilized at the surface of functionalized polycaprolactone (PCL) NFM. Human bone-marrow-derived mesenchymal stem cells (hBMSCs) cultured on RUNX2-loaded liposomes immobilized at the surface of electrospun PCL NFM showed enhanced levels of metabolic activity and total protein synthesis. RUNX2-loaded liposomes immobilized at the surface of electrospun PCL NFMs induce a long-term gene expression of eGFP and RUNX2 by cultured hBMSCs. Furthermore, osteogenic differentiation of hBMSCs was also achieved by the overexpression of other osteogenic markers in medium free of osteogenic supplementation. These findings demonstrate that surface immobilization of RUNX2 plasmid onto elestrospun PCL NFM can produce long-term gene expression in vitro, which may be employed to enhance the osteoinductive properties of scaffolds used for bone tissue engineering strategies.
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