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Hanuman S, B HK, Pai KSR, Nune M. Surface-Conjugated Galactose on Electrospun Polycaprolactone Nanofibers: An Innovative Scaffold for Uterine Tissue Engineering. ACS OMEGA 2024; 9:34314-34328. [PMID: 39157094 PMCID: PMC11325431 DOI: 10.1021/acsomega.3c10445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 07/10/2024] [Accepted: 07/11/2024] [Indexed: 08/20/2024]
Abstract
The uterus, a vital organ in the female reproductive system, nurtures and supports developing embryos until maturity. This study focuses on addressing uterine related problems by creating a nanofibrous scaffold to regenerate uterine myometrial tissue, closely resembling the native extracellular matrix (ECM) for enhanced efficacy. To achieve this, we utilized polycaprolactone (PCL) as a biomaterial and employed an electrospinning technique to generate PCL nanofibers in both random and aligned orientations. Due to the inherent hydrophobic nature of PCL nanofibers, a two-step wet chemistry surface modification technique is used, involving the conjugation of galactose onto them. Galactose, a lectin-binding sugar, was chosen to enhance the scaffold's hydrophilicity, thereby improving cell adhesion and fostering l-selectin-based interactions between the scaffold and uterine cells. These interactions, in turn, activated uterine fibroblasts, leading to ECM remodeling. The optimized electrospinning process successfully generated random and aligned nanofibers. Subsequent surface modification was carried out, and the modified scaffold was subjected to various physicochemical characterization, such as the ninhydrin assay, enzyme-linked lectin assay techniques that revealed successful galactose conjugation, and mechanical characterization to assess any changes in material bulk properties resulting from the modification. The tensile strength of random galactose-modified PCL fibers reached 0.041 ± 0.01 MPa, outperforming random unmodified PCL fibers (0.026 ± 0.01 MPa), aligned unmodified PCL fibers (0.011 ± 0.001 MPa), and aligned modified PCL fibers (0.016 ± 0.002 MPa). Cytocompatibility studies with human uterine fibroblast cells showed enhanced viability and proliferation on the modified scaffolds. Initial pilot studies were attempted in the current study involving subcutaneous implantation in the dorsal area of Wistar rats to assess biocompatibility and tissue response before proceeding to intrauterine implantation indicated that the modification did not induce adverse inflammation in vivo. In conclusion, our study introduces a surface-modified PCL nanofibrous material for myometrial tissue engineering, offering promise in addressing myometrial damage and advancing uterine health and reproductive well-being.
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Affiliation(s)
- Srividya Hanuman
- Manipal
Institute of Regenerative Medicine, Manipal
Academy of Higher Education, Manipal, Karnataka 576104, India
| | - Harish Kumar B
- Department
of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India
| | - K. Sreedhara Ranganath Pai
- Department
of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India
| | - Manasa Nune
- Manipal
Institute of Regenerative Medicine, Manipal
Academy of Higher Education, Manipal, Karnataka 576104, India
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2
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Qin Z, Ma J, Chu X, Guo T, Feng P, Wang M. Delivery of miR-29a improves the permeability of cisplatin by downregulating collagen I expression. Biochem Biophys Res Commun 2024; 710:149884. [PMID: 38598901 DOI: 10.1016/j.bbrc.2024.149884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 03/15/2024] [Accepted: 04/02/2024] [Indexed: 04/12/2024]
Abstract
In the clinical setting, chemotherapy is the most widely used antitumor treatment, however, chemotherapy resistance significantly limits its efficacy. Reduced drug influx is a key mechanism of chemoresistance, and inhibition of the complexity of the tumor microenvironment (TME) may improve chemotherapy drug influx and therapeutic efficiency. In the current study, we identified that the major extracellular matrix protein collagen I is more highly expressed in lung cancer tissues than adjacent tissues in patients with lung cancer. Furthermore, Kaplan-Meier analysis suggested that COL1A1 expression was negatively correlated with the survival time of patients with lung cancer. Our previous study demonstrated that miR-29a inhibited collagen I expression in lung fibroblasts. Here, we investigated the effect of miR-29a on collagen I expression and the cellular behavior of lung cancer cells. Our results suggest that transfection with miR-29a could prevent Lewis lung carcinoma (LLC) migration by downregulating collagen I expression, but did not affect the proliferation, apoptosis, and cell cycle of LLC cells. In a 3D tumoroid model, we demonstrated that miR-29a transfection significantly increased cisplatin (CDDP) permeation and CDDP-induced cell death. Furthermore, neutral lipid emulsion-based miR-29a delivery improved the therapeutic effect of cisplatin in an LLC spontaneous tumor model in vivo. In summary, this study shows that targeting collagen I expression in the TME contributes to chemotherapy drug influx and improves therapeutic efficacy in lung cancer.
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Affiliation(s)
- Zhongyu Qin
- Department of Basic Medicine, Changzhi Medical College, Changzhi, 04600, Shanxi, China.
| | - Jin Ma
- Department of Pathology, Henan Provincial People's Hospital, ZhengZhou, Henan, China.
| | - Xu Chu
- The First Affiliated Hospital of Henan University of Science and Technology, Luo Yang, China.
| | - Taozhen Guo
- Department of Infection, Heping Hospital, Changzhi Medical College, Changzhi, 04600, Shanxi, China.
| | - Pengcheng Feng
- Department of Basic Medicine, Changzhi Medical College, Changzhi, 04600, Shanxi, China.
| | - Ming Wang
- Huanghe Science and Technology University, Zheng Zhou, Henan, 450063, China.
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3
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Coelho-Rato LS, Parvanian S, Modi MK, Eriksson JE. Vimentin at the core of wound healing. Trends Cell Biol 2024; 34:239-254. [PMID: 37748934 DOI: 10.1016/j.tcb.2023.08.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 08/25/2023] [Accepted: 08/25/2023] [Indexed: 09/27/2023]
Abstract
As a member of the large family of intermediate filaments (IFs), vimentin has emerged as a highly dynamic and versatile cytoskeletal protein involved in many key processes of wound healing. It is well established that vimentin is involved in epithelial-mesenchymal transition (EMT) during wound healing and metastasis, during which epithelial cells acquire more dynamic and motile characteristics. Moreover, vimentin participates in multiple cellular activities supporting growth, proliferation, migration, cell survival, and stress resilience. Here, we explore the role of vimentin at each phase of wound healing, with focus on how it integrates different signaling pathways and protects cells in the fluctuating and challenging environments that characterize a healing tissue.
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Affiliation(s)
- Leila S Coelho-Rato
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, 20520 Turku, Finland; Faculty of Science and Engineering, Cell Biology, Åbo Akademi University, 20520 Turku, Finland
| | - Sepideh Parvanian
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, 20520 Turku, Finland; Faculty of Science and Engineering, Cell Biology, Åbo Akademi University, 20520 Turku, Finland; Center for Systems Biology, Massachusetts General Hospital Research Institute and Harvard Medical School, Boston, MA 02114, USA
| | - Mayank Kumar Modi
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, 20520 Turku, Finland; Faculty of Science and Engineering, Cell Biology, Åbo Akademi University, 20520 Turku, Finland
| | - John E Eriksson
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, 20520 Turku, Finland; Faculty of Science and Engineering, Cell Biology, Åbo Akademi University, 20520 Turku, Finland; Euro-Bioimaging ERIC, 20520 Turku, Finland.
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4
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Xie H, Rutz J, Maxeiner S, Grein T, Thomas A, Juengel E, Chun FKH, Cinatl J, Haferkamp A, Tsaur I, Blaheta RA. Sulforaphane Inhibits Adhesion and Migration of Cisplatin- and Gemcitabine-Resistant Bladder Cancer Cells In Vitro. Nutrients 2024; 16:623. [PMID: 38474751 DOI: 10.3390/nu16050623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 02/20/2024] [Accepted: 02/22/2024] [Indexed: 03/14/2024] Open
Abstract
Only 20% of patients with muscle-invasive bladder carcinoma respond to cisplatin-based chemotherapy. Since the natural phytochemical sulforaphane (SFN) exhibits antitumor properties, its influence on the adhesive and migratory properties of cisplatin- and gemcitabine-sensitive and cisplatin- and gemcitabine-resistant RT4, RT112, T24, and TCCSUP bladder cancer cells was evaluated. Mechanisms behind the SFN influence were explored by assessing levels of the integrin adhesion receptors β1 (total and activated) and β4 and their functional relevance. To evaluate cell differentiation processes, E- and N-cadherin, vimentin and cytokeratin (CK) 8/18 expression were examined. SFN down-regulated bladder cancer cell adhesion with cell line and resistance-specific differences. Different responses to SFN were reflected in integrin expression that depended on the cell line and presence of resistance. Chemotactic movement of RT112, T24, and TCCSUP (RT4 did not migrate) was markedly blocked by SFN in both chemo-sensitive and chemo-resistant cells. Integrin-blocking studies indicated β1 and β4 as chemotaxis regulators. N-cadherin was diminished by SFN, particularly in sensitive and resistant T24 and RT112 cells, whereas E-cadherin was increased in RT112 cells (not detectable in RT4 and TCCSup cells). Alterations in vimentin and CK8/18 were also apparent, though not the same in all cell lines. SFN exposure resulted in translocation of E-cadherin (RT112), N-cadherin (RT112, T24), and vimentin (T24). SFN down-regulated adhesion and migration in chemo-sensitive and chemo-resistant bladder cancer cells by acting on integrin β1 and β4 expression and inducing the mesenchymal-epithelial translocation of cadherins and vimentin. SFN does, therefore, possess potential to improve bladder cancer therapy.
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Affiliation(s)
- Hui Xie
- Department of Urology and Pediatric Urology, University Medical Center Mainz, 55131 Mainz, Germany
- Department of Urology, Goethe-University, 60590 Frankfurt am Main, Germany
| | - Jochen Rutz
- Department of Urology and Pediatric Urology, University Medical Center Mainz, 55131 Mainz, Germany
| | - Sebastian Maxeiner
- Department of Urology and Pediatric Urology, University Medical Center Mainz, 55131 Mainz, Germany
| | - Timothy Grein
- Department of Urology, Goethe-University, 60590 Frankfurt am Main, Germany
| | - Anita Thomas
- Department of Urology and Pediatric Urology, University Medical Center Mainz, 55131 Mainz, Germany
| | - Eva Juengel
- Department of Urology and Pediatric Urology, University Medical Center Mainz, 55131 Mainz, Germany
| | - Felix K-H Chun
- Department of Urology, Goethe-University, 60590 Frankfurt am Main, Germany
| | - Jindrich Cinatl
- Institute of Medical Virology, Goethe-University, 60596 Frankfurt am Main, Germany
| | - Axel Haferkamp
- Department of Urology and Pediatric Urology, University Medical Center Mainz, 55131 Mainz, Germany
| | - Igor Tsaur
- Department of Urology and Pediatric Urology, University Medical Center Mainz, 55131 Mainz, Germany
| | - Roman A Blaheta
- Department of Urology and Pediatric Urology, University Medical Center Mainz, 55131 Mainz, Germany
- Department of Urology, Goethe-University, 60590 Frankfurt am Main, Germany
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5
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Yin H, Guo Y, Lai S, Fan L, Wang L, Xin JH, Yu H. Biomimetic three-layer hierarchical scaffolds for efficient water management and cell recruitment. Colloids Surf B Biointerfaces 2023; 222:113081. [PMID: 36566687 DOI: 10.1016/j.colsurfb.2022.113081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/15/2022] [Accepted: 12/07/2022] [Indexed: 12/24/2022]
Abstract
Taking inspiration from the structures of roots, stems and leaves of trees in nature, a biomimetic three-layered scaffold was designed for efficient water management and cell recruitment. Using polycaprolactone (PCL) and polyacrylonitrile (PAN) as raw materials, radially oriented nanofiber films and multistage adjustable nanofiber films were prepared through electrospinning technology as the base skin-friendly layer (roots) and middle unidirectional moisture conductive material (stems), the porous polyurethane foam was integrated as the outer moisturizing layer (leaves). Among which, radially oriented nanofiber films could promote the directional migration of fibroblasts and induce cell morphological changes. For the spatially hierarchically nanofiber films, the unidirectional transport of liquid was effectively realized. While the porous polyurethane foam membrane could absorb 9 times its weight in biofluid and retain moisture for up to 10 h. As a result, the biomimetic three-layered scaffolds with different structures can promote wound epithelization and drain biofluid while avoiding wound inflammation caused by excessive biofluid, which is expected to be applied in the field of skin wounds.
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Affiliation(s)
- Huiyi Yin
- Guangdong-Hong Kong Joint Laboratory for Advanced Textile Materials, School of Textile Materials and Engineering, Wuyi University, Jiangmen 529020, China
| | - Yongshi Guo
- Guangdong-Hong Kong Joint Laboratory for Advanced Textile Materials, School of Textile Materials and Engineering, Wuyi University, Jiangmen 529020, China
| | - Simin Lai
- Guangdong-Hong Kong Joint Laboratory for Advanced Textile Materials, School of Textile Materials and Engineering, Wuyi University, Jiangmen 529020, China
| | - Longfei Fan
- Guangdong-Hong Kong Joint Laboratory for Advanced Textile Materials, School of Textile Materials and Engineering, Wuyi University, Jiangmen 529020, China
| | - Lihuan Wang
- Guangdong-Hong Kong Joint Laboratory for Advanced Textile Materials, School of Textile Materials and Engineering, Wuyi University, Jiangmen 529020, China
| | - John H Xin
- Institute of Textiles & Clothing, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Hui Yu
- Guangdong-Hong Kong Joint Laboratory for Advanced Textile Materials, School of Textile Materials and Engineering, Wuyi University, Jiangmen 529020, China.
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6
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Liu C, Nguyen RY, Pizzurro GA, Zhang X, Gong X, Martinez AR, Mak M. Self-assembly of mesoscale collagen architectures and applications in 3D cell migration. Acta Biomater 2023; 155:167-181. [PMID: 36371004 PMCID: PMC9805527 DOI: 10.1016/j.actbio.2022.11.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Revised: 11/01/2022] [Accepted: 11/03/2022] [Indexed: 11/11/2022]
Abstract
3D in vitro tumor models have recently been investigated as they can recapitulate key features in the tumor microenvironment. Reconstruction of a biomimetic scaffold is critical in these models. However, most current methods focus on modulating local properties, e.g. micro- and nano-scaled topographies, without capturing the global millimeter or intermediate mesoscale features. Here we introduced a method for modulating the collagen I-based extracellular matrix structure by disruption of fibrillogenesis and the gelation process through mechanical agitation. With this method, we generated collagen scaffolds that are thickened and wavy at a larger scale while featuring global softness. Thickened collagen patches were interconnected with loose collagen networks, highly resembling collagen architecture in the tumor stroma. This thickened collagen network promoted tumor cell dissemination. In addition, this novel modified scaffold triggered differences in morphology and migratory behaviors of tumor cells. Altogether, our method for altered collagen architecture paves new ways for studying in detail cell behavior in physiologically relevant biological processes. STATEMENT OF SIGNIFICANCE: Tumor progression usually involves chronic tissue damage and repair processes. Hallmarks of tumors are highly overlapped with those of wound healing. To mimic the tumor milieu, collagen-based scaffolds are widely used. These scaffolds focus on modulating microscale topographies and mechanics, lacking global architecture similarity compared with in vivo architecture. Here we introduced one type of thick collagen bundles that mimics ECM architecture in human skin scars. These thickened collagen bundles are long and wavy while featuring global softness. This collagen architecture imposes fewer steric restraints and promotes tumor cell dissemination. Our findings demonstrate a distinct picture of cell behaviors and intercellular interactions, highlighting the importance of collagen architecture and spatial heterogeneity of the tumor microenvironment.
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Affiliation(s)
- Chang Liu
- Department of Biomedical Engineering, Yale University, New Haven, CT 06511, United States
| | - Ryan Y Nguyen
- Department of Biomedical Engineering, Yale University, New Haven, CT 06511, United States
| | - Gabriela A Pizzurro
- Department of Biomedical Engineering, Yale University, New Haven, CT 06511, United States
| | - Xingjian Zhang
- Department of Biomedical Engineering, Yale University, New Haven, CT 06511, United States
| | - Xiangyu Gong
- Department of Biomedical Engineering, Yale University, New Haven, CT 06511, United States
| | | | - Michael Mak
- Department of Biomedical Engineering, Yale University, New Haven, CT 06511, United States.
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7
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Li Y, Zhuang X, Niu F. Quantitative Investigation of the Link between Actin Cytoskeleton Dynamics and Cellular Behavior. MICROMACHINES 2022; 13:1885. [PMID: 36363906 PMCID: PMC9695820 DOI: 10.3390/mi13111885] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 10/25/2022] [Accepted: 10/28/2022] [Indexed: 06/16/2023]
Abstract
Actin cytoskeleton reorganization, which is governed by actin-associated proteins, has a close relationship with the change of cell biological behavior. However, a perceived understanding of how actin mechanical property links to cell biological property remains unclear. This paper reports a label-free biomarker to indicate this interrelationship by using the actin cytoskeleton model and optical tweezers (OT) manipulation technology. Both biophysical and biochemical methods were employed, respectively, as stimuli for two case studies. By comparing the mechanical and biological experiment results of the leukemia cells under electrical field exposure and human mesenchymal stem cells (hMSC) under adipogenesis differentiation, we concluded that β-actin can function as an indicator in characterizing the alteration of cellular biological behavior during the change of actin cytoskeleton mechanical property. This study demonstrated an effective way to probe a quantitative understanding of how actin cytoskeleton reorganization reflects the interrelation between cell mechanical property and cell biological behavior.
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Affiliation(s)
- Ying Li
- Department of Mechanical and Electrical Engineering, Shenzhen Polytechnic, Shenzhen 518055, China
| | - Xiaoru Zhuang
- Department of Mechanical and Electrical Engineering, Shenzhen Polytechnic, Shenzhen 518055, China
| | - Fuzhou Niu
- School of Mechanical Engineering, Suzhou University of Science and Technology, Suzhou 215000, China
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8
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Erickson A, Chiarelli PA, Huang J, Levengood SL, Zhang M. Electrospun nanofibers for 3-D cancer models, diagnostics, and therapy. NANOSCALE HORIZONS 2022; 7:1279-1298. [PMID: 36106417 DOI: 10.1039/d2nh00328g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
As one of the leading causes of global mortality, cancer has prompted extensive research and development to advance efficacious drug discovery, sustained drug delivery and improved sensitivity in diagnosis. Towards these applications, nanofibers synthesized by electrospinning have exhibited great clinical potential as a biomimetic tumor microenvironment model for drug screening, a controllable platform for localized, prolonged drug release for cancer therapy, and a highly sensitive cancer diagnostic tool for capture and isolation of circulating tumor cells in the bloodstream and for detection of cancer-associated biomarkers. This review provides an overview of applied nanofiber design with focus on versatile electrospinning fabrication techniques. The influence of topographical, physical, and biochemical properties on the function of nanofiber assemblies is discussed, as well as current and foreseeable barriers to the clinical translation of applied nanofibers in the field of oncology.
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Affiliation(s)
- Ariane Erickson
- Department of Materials Science and Engineering, University of Washington, Seattle, WA 98195, USA.
| | - Peter A Chiarelli
- The Saban Research Institute, University of Southern California, Children's Hospital Los Angeles, Los Angeles, CA 90027, USA
| | - Jianxi Huang
- Department of Materials Science and Engineering, University of Washington, Seattle, WA 98195, USA.
| | - Sheeny Lan Levengood
- Department of Materials Science and Engineering, University of Washington, Seattle, WA 98195, USA.
| | - Miqin Zhang
- Department of Materials Science and Engineering, University of Washington, Seattle, WA 98195, USA.
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10
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Zhang Y, Wang X, Zhang Y, Liu Y, Wang D, Yu X, Wang H, Bai Z, Jiang YC, Li X, Zheng W, Li Q. Endothelial Cell Migration Regulated by Surface Topography of Poly(ε-caprolactone) Nanofibers. ACS Biomater Sci Eng 2021; 7:4959-4970. [PMID: 34543012 DOI: 10.1021/acsbiomaterials.1c00951] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The study of cell migration on biomaterials is of great significance in tissue engineering and regenerative medicine. In recent years, there has been increasing evidence that the physical properties of the extracellular matrix (ECM), such as surface topography, affect various cellular behaviors such as proliferation, adhesion, and migration. However, the biological mechanism of surface topography influencing cellular behavior is still unclear. In this study, we prepared polycaprolactone (PCL) fibrous materials with different surface microstructures by solvent casting, electrospinning, and self-induced crystallization. The corresponding topographical structure obtained is a two-dimensional (2D) flat surface, 2.5-dimensional (2.5D) fibers, and three-dimensional (3D) fibers with a multilevel microstructure. We then investigated the effects of the complex topographical structure on endothelial cell migration. Our study demonstrates that cells can sense the changes of micro- and nanomorphology on the surface of materials, adapt to the physical environment through biochemical reactions, and regulate actin polymerization and directional migration through Rac1 and Cdc42. The cells on the nanofibers are elongated spindles, and the positive feedback of cell adhesion and actin polymerization along the fiber direction makes the plasma membrane continue to protrude, promoting cell polarization and directional migration. This study might provide new insights into the biomaterial design, especially those used for artificial vascular grafts.
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Affiliation(s)
- Yang Zhang
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Xiaofeng Wang
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Yan Zhang
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Yajing Liu
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Dongfang Wang
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Xueke Yu
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Haonan Wang
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Zhiyuan Bai
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Yong-Chao Jiang
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Xiaomeng Li
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Wei Zheng
- Engineering and Technology Department, University of Wisconsin-STOUT, Menomonie, Wisconsin 54751, United States
| | - Qian Li
- School of Mechanics and Safety Engineering, National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
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11
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Antonova OY, Kochetkova OY, Kanev IL, Shlyapnikova EA, Shlyapnikov YM. Rapid Generation of Neurospheres from Hippocampal Neurons Using Extracellular-Matrix-Mimetic Scaffolds. ACS Chem Neurosci 2021; 12:2838-2850. [PMID: 34256565 DOI: 10.1021/acschemneuro.1c00201] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
3D models of brain organoids represent an innovative and promising tool in neuroscience studies. However, the process of neurosphere formation in vitro remains complicated and is not always very effective. This is largely due to the lack of growth factors, guidance cues, and scaffold structures commonly found in tissues. Here we present a new, simple, and efficient method for generating neurospheres using scaffolds composed of electrospun nylon fibers with a diameter of 40-180 nm, which makes them similar to the brain extracellular matrix (ECM) components. Several main advantages of the proposed method should be highlighted. The method is fast, and the biomaterial consumption is low. Also, the resulting neurospheres are attached to the scaffold nanofibers. This not only provides the experimental convenience but also suggests that the resulting organoid models can potentially demonstrate fundamentally new properties, being closer to the nervous tissue in vivo. We demonstrate the influence of the fibrous scaffold structure on the formation, morphology, and composition of neurospheres and confirm adequate functional activity of the cellular components of these spheroids. The proposed approach can be further used for drug screening, modeling of neurodevelopmental, neurodegenerative disorders, and, potentially, therapeutic tissue engineering.
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Affiliation(s)
- Olga Y. Antonova
- Institute of Theoretical and Experimental Biophysics of RAS, Pushchino, Moscow Region 142290, Russia
| | - Olga Y. Kochetkova
- Institute of Theoretical and Experimental Biophysics of RAS, Pushchino, Moscow Region 142290, Russia
| | - Igor L. Kanev
- Institute of Theoretical and Experimental Biophysics of RAS, Pushchino, Moscow Region 142290, Russia
| | - Elena A. Shlyapnikova
- Institute of Theoretical and Experimental Biophysics of RAS, Pushchino, Moscow Region 142290, Russia
| | - Yuri M. Shlyapnikov
- Institute of Theoretical and Experimental Biophysics of RAS, Pushchino, Moscow Region 142290, Russia
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12
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Duan Y, Hou Z, Zong Y, Ye F, Zhao K. Dynamic heterogeneity flow promotes binding reactions in a dense system of hard annular sector particles. Phys Chem Chem Phys 2021; 23:3581-3587. [PMID: 33514954 DOI: 10.1039/d0cp05757f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We perform molecular dynamics simulations on a system of hard annular sector particles (ASPs) to investigate the reaction-dynamics relationship. The dimerization reaction zone, mixing reaction zone including dimerization and n-merization (n > 2), and arrested region are observed successively as area fraction φA increases from low to high. In this work, we focus on the properties of the concentrated arrested region (φA≥ 0.400). The results show that for systems at φA≥ 0.400, the ratio of n-merization increases with φA and n-merization finally becomes the dominant reaction in the system; dynamic heterogeneity (DH) is observed and is demonstrated to originate from the divergent size of clusters consisting of high-mobility particles; the particles with a high translational or rotational mobility are found to have a high ability to react with other particles at φA > 0.400; more interestingly, binding reactions are found to correlate spatially with DH at φA > 0.400. Our work sheds new light on understanding the role of DH in binding reactions or specific-site recognition assembly in a crowded environment.
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Affiliation(s)
- Yana Duan
- Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China.
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13
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Jahanmard F, Croes M, Castilho M, Majed A, Steenbergen MJ, Lietaert K, Vogely HC, van der Wal BCH, Stapels DAC, Malda J, Vermonden T, Amin Yavari S. Bactericidal coating to prevent early and delayed implant-related infections. J Control Release 2020; 326:38-52. [PMID: 32580041 DOI: 10.1016/j.jconrel.2020.06.014] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 05/22/2020] [Accepted: 06/14/2020] [Indexed: 01/01/2023]
Abstract
The occurrence of an implant-associated infection (IAI) with the formation of a persisting bacterial biofilm remains a major risk following orthopedic biomaterial implantation. Yet, progress in the fabrication of tunable and durable implant coatings with sufficient bactericidal activity to prevent IAI has been limited. Here, an electrospun composite coating was optimized for the combinatorial and sustained delivery of antibiotics. Antibiotics-laden poly(ε-caprolactone) (PCL) and poly`1q`(lactic-co glycolic acid) (PLGA) nanofibers were electrospun onto lattice structured titanium (Ti) implants. In order to achieve tunable and independent delivery of vancomycin (Van) and rifampicin (Rif), we investigated the influence of the specific drug-polymer interaction and the nanofiber coating composition on the drug release profile and durability of the polymer-Ti interface. We found that a bi-layered nanofiber structure, produced by electrospinning of an inner layer of [PCL/Van] and an outer layer of [PLGA/Rif], yielded the optimal combinatorial drug release profile. This resulted in markedly enhanced bactericidal activity against planktonic and adherent Staphylococcus aureus for 6 weeks as compared to single drug delivery. Moreover, after 6 weeks, synergistic bacterial killing was observed as a result of sustained Van and Rif release. The application of a nanofiber-filled lattice structure successfully prevented the delamination of the multi-layer coating after press-fit cadaveric bone implantation. This new lattice design, in conjunction with the multi-layer nanofiber structure, can be applied to develop tunable and durable coatings for various metallic implantable devices. This is particularly appealing to tune the release of multiple antimicrobial agents over a period of weeks to prevent early and delayed onset IAI.
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Affiliation(s)
- F Jahanmard
- Department of Orthopedics, University Medical Center Utrecht, Utrecht, the Netherlands
| | - M Croes
- Department of Orthopedics, University Medical Center Utrecht, Utrecht, the Netherlands
| | - M Castilho
- Department of Orthopedics, University Medical Center Utrecht, Utrecht, the Netherlands; Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, the Netherlands
| | - A Majed
- Department of Orthopedics, University Medical Center Utrecht, Utrecht, the Netherlands
| | - M J Steenbergen
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS), Utrecht University, Utrecht, the Netherlands
| | - K Lietaert
- 3D Systems - LayerWise NV, Leuven, Belgium; Department of Metallurgy and Materials Engineering, KU Leuven, Leuven, Belgium
| | - H C Vogely
- Department of Orthopedics, University Medical Center Utrecht, Utrecht, the Netherlands
| | - B C H van der Wal
- Department of Orthopedics, University Medical Center Utrecht, Utrecht, the Netherlands
| | - D A C Stapels
- Department of Medical Microbiology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - J Malda
- Department of Orthopedics, University Medical Center Utrecht, Utrecht, the Netherlands; Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, the Netherlands
| | - T Vermonden
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS), Utrecht University, Utrecht, the Netherlands
| | - S Amin Yavari
- Department of Orthopedics, University Medical Center Utrecht, Utrecht, the Netherlands.
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14
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Dai J, Wang Y, Gong J, Yao Y. Biointerface anisotropy modulates migration of breast cancer cell. Colloids Surf B Biointerfaces 2020; 190:110973. [PMID: 32199258 DOI: 10.1016/j.colsurfb.2020.110973] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 02/24/2020] [Accepted: 03/11/2020] [Indexed: 12/21/2022]
Abstract
Migration of cancer cell is a cyclic process, which involves dynamic interaction between extracellular biointerface and cellular responds. In tumors, collagen as extracellular matrix reorganizes biointerface from curl and isotropic fibers to straightened and anisotropic fibers during tumorigenesis, yet how cell migration respond to topography of biointerface is unknown. In this research, we introduced a facile fabrication method on nanofibers of varying topography, which was mimicking the alignment of extracellular nanofibers, to examine the change of cytoskeleton during cell migration. We took advantage of breast carcinoma cell line (MDA-MB-231) for time-lapse imaging analysis. We found that biointerface anisotropy modulated morphology of cell and mediated the pattern of migration. Morphologically, cells on anisotropic nanofiber showed extending spindle shape. The trajectories of migration templated the topographic pattern on biointerface. Besides, aligned nanofiber induced caterpillar-like model of migration through protrusion - retraction cycle, which was indicated by periodical variation of aspect ratio and velocity of cells. The biointerface anisotropy triggered vimentin filaments and microtubule networks preferentially oriented along the alignment of nanofibers. And the velocity of cell mobility by vimentin, β-catenin or CDC42 knockdown was significantly enhanced on aligned nanofibers. Thus, we implied that biointerface anisotropy modulated migration of breast cancer cell and it associated with reorganization of cytoskeleton filaments.
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Affiliation(s)
- Jing Dai
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai, 201210, China; Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Changning, Shanghai, 200050, China; University of Chinese Academy of Sciences, 19 Yuquan Road, Shijingshan, Beijing, 100049, China
| | - Yiqun Wang
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai, 201210, China; Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Jinkang Gong
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai, 201210, China
| | - Yuan Yao
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai, 201210, China.
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