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Wang H, Sanghvi G, Arefpour A, Alkhayyat A, Soheily A, Jabbarzare S, Salahshour S, Alizadeh A, Baghaei S. Using hardystonite as a biomaterial in biomedical and bone tissue engineering applications. Tissue Cell 2024; 91:102551. [PMID: 39255743 DOI: 10.1016/j.tice.2024.102551] [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: 02/08/2024] [Revised: 08/28/2024] [Accepted: 08/30/2024] [Indexed: 09/12/2024]
Abstract
Widespread adoption for substitutes of artificial bone grafts based on proper bioceramics has been generated in recent years. Among them, calcium-silicate-based bioceramics, which possess osteoconductive properties and can directly attach to biological organs, have attracted substantial attention for broad ranges of applications in bone tissue engineering. Approaches exist for a novel strategy to promote the drawbacks of bioceramics such as the incorporation of Zn2+, Mg2+, and Zr4+ ions into calcium-silicate networks, and the improvement of their physical, mechanical, and biological properties. Recently, hardystonite (Ca2ZnSi2O7) bioceramics, as one of the most proper calcium-silicate-based bioceramics, has presented excellent biocompatibility, bioactivity, and interaction. Due to its physical, mechanical, and biological behaviors and ability to be shaped utilizing a variety of fabrication techniques, hardystonite possesses the potential to be applied in biomedical and tissue engineering, mainly bone tissue engineering. A notable potential exists for the newly developed bioceramics to help therapies supply clinical outputs. The promising review paper has been presented by considering major aims to summarize and discuss the most applicable studies carried out for its physical, mechanical, and biological behaviors.
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Affiliation(s)
- Haoyu Wang
- Medical College, Xijing University, Xi'an, Shaanxi 710123, China; Department of Orthopedics, The Second Affiliated Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi 710004, China.
| | - Gaurav Sanghvi
- Marwadi University Research Center, Department of Microbiology, Faculty of Science, Marwadi University, Rajkot, Gujarat 360003, India
| | - Ahmadreza Arefpour
- Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - Ahmad Alkhayyat
- Department of computers Techniques engineering, College of technical engineering, The Islamic University, Najaf, Iraq; Department of computers Techniques engineering, College of technical engineering, The Islamic University of Al Diwaniyah, Al Diwaniyah, Iraq; Department of computers Techniques engineering, College of technical engineering, The Islamic University of Babylon, Babylon, Iraq
| | - Ali Soheily
- Advanced Materials Research Center, Department of Materials Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran
| | - Saeid Jabbarzare
- Advanced Materials Research Center, Department of Materials Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran
| | - Soheil Salahshour
- Faculty of Engineering and Natural Sciences, Istanbul Okan University, Istanbul, Turkey; Faculty of Engineering and Natural Sciences, Bahcesehir University, Istanbul, Turkey; Department of Computer Science and Mathematics, Lebanese American University, Beirut, Lebanon
| | - As'ad Alizadeh
- Department of Mechanical Engineering, College of Engineering, Urmia University, Urmia, Iran
| | - Sh Baghaei
- Department of mechanical engineering, Khomeinishahr branch, Islamic Azad University, Khomeinishahr, Iran.
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2
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Xiang JY, Kang L, Li ZM, Tseng SL, Wang LQ, Li TH, Li ZJ, Huang JZ, Yu NZ, Long X. Biological scaffold as potential platforms for stem cells: Current development and applications in wound healing. World J Stem Cells 2024; 16:334-352. [PMID: 38690516 PMCID: PMC11056631 DOI: 10.4252/wjsc.v16.i4.334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 02/20/2024] [Accepted: 03/12/2024] [Indexed: 04/25/2024] Open
Abstract
Wound repair is a complex challenge for both clinical practitioners and researchers. Conventional approaches for wound repair have several limitations. Stem cell-based therapy has emerged as a novel strategy to address this issue, exhibiting significant potential for enhancing wound healing rates, improving wound quality, and promoting skin regeneration. However, the use of stem cells in skin regeneration presents several challenges. Recently, stem cells and biomaterials have been identified as crucial components of the wound-healing process. Combination therapy involving the development of biocompatible scaffolds, accompanying cells, multiple biological factors, and structures resembling the natural extracellular matrix (ECM) has gained considerable attention. Biological scaffolds encompass a range of biomaterials that serve as platforms for seeding stem cells, providing them with an environment conducive to growth, similar to that of the ECM. These scaffolds facilitate the delivery and application of stem cells for tissue regeneration and wound healing. This article provides a comprehensive review of the current developments and applications of biological scaffolds for stem cells in wound healing, emphasizing their capacity to facilitate stem cell adhesion, proliferation, differentiation, and paracrine functions. Additionally, we identify the pivotal characteristics of the scaffolds that contribute to enhanced cellular activity.
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Affiliation(s)
- Jie-Yu Xiang
- Department of Plastic and Reconstructive Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Lin Kang
- Biomedical Engineering Facility, Institute of Clinical Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100021, China
| | - Zi-Ming Li
- Department of Plastic and Reconstructive Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Song-Lu Tseng
- Department of Plastic and Reconstructive Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Li-Quan Wang
- Department of Plastic and Reconstructive Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Tian-Hao Li
- Department of Plastic and Reconstructive Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Zhu-Jun Li
- Department of Plastic and Reconstructive Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Jiu-Zuo Huang
- Department of Plastic and Reconstructive Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Nan-Ze Yu
- Department of Plastic and Reconstructive Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Xiao Long
- Department of Plastic and Reconstructive Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China.
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3
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Scianna M. Selected aspects of avascular tumor growth reproduced by a hybrid model of cell dynamics and chemical kinetics. Math Biosci 2024; 370:109168. [PMID: 38408698 DOI: 10.1016/j.mbs.2024.109168] [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: 09/04/2023] [Revised: 02/10/2024] [Accepted: 02/23/2024] [Indexed: 02/28/2024]
Abstract
We here propose a hybrid computational framework to reproduce and analyze aspects of the avascular progression of a generic solid tumor. Our method first employs an individual-based approach to represent the population of tumor cells, which are distinguished in viable and necrotic agents. The active part of the disease is in turn differentiated according to a set of metabolic states. We then describe the spatio-temporal evolution of the concentration of oxygen and of tumor-secreted proteolytic enzymes using partial differential equations (PDEs). A differential equation finally governs the local degradation of the extracellular matrix (ECM) by the malignant mass. Numerical realizations of the model are run to reproduce tumor growth and invasion in a number scenarios that differ for cell properties (adhesiveness, duplication potential, proteolytic activity) and/or environmental conditions (level of tissue oxygenation and matrix density pattern). In particular, our simulations suggest that tumor aggressiveness, in terms of invasive depth and extension of necrotic tissue, can be reduced by (i) stable cell-cell contact interactions, (ii) poor tendency of malignant agents to chemotactically move upon oxygen gradients, and (iii) presence of an overdense matrix, if coupled by a disrupted proteolytic activity of the disease.
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Affiliation(s)
- Marco Scianna
- Department of Mathematical Sciences, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy.
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4
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Chandler T, Guo M, Su Y, Chen J, Wu Y, Liu J, Agashe A, Fischer RS, Mehta SB, Kumar A, Baskin TI, Jamouillé V, Liu H, Swaminathan V, Nain A, Oldenbourg R, Riviére PL, Shroff H. Three-dimensional spatio-angular fluorescence microscopy with a polarized dual-view inverted selective-plane illumination microscope (pol-diSPIM). BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.03.09.584243. [PMID: 38712306 PMCID: PMC11071302 DOI: 10.1101/2024.03.09.584243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
Polarized fluorescence microscopy is a valuable tool for measuring molecular orientations, but techniques for recovering three-dimensional orientations and positions of fluorescent ensembles are limited. We report a polarized dual-view light-sheet system for determining the three-dimensional orientations and diffraction-limited positions of ensembles of fluorescent dipoles that label biological structures, and we share a set of visualization, histogram, and profiling tools for interpreting these positions and orientations. We model our samples, their excitation, and their detection using coarse-grained representations we call orientation distribution functions (ODFs). We apply ODFs to create physics-informed models of image formation with spatio-angular point-spread and transfer functions. We use theory and experiment to conclude that light-sheet tilting is a necessary part of our design for recovering all three-dimensional orientations. We use our system to extend known two-dimensional results to three dimensions in FM1-43-labelled giant unilamellar vesicles, fast-scarlet-labelled cellulose in xylem cells, and phalloidin-labelled actin in U2OS cells. Additionally, we observe phalloidin-labelled actin in mouse fibroblasts grown on grids of labelled nanowires and identify correlations between local actin alignment and global cell-scale orientation, indicating cellular coordination across length scales.
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Affiliation(s)
- Talon Chandler
- CZ Biohub SF, San Francisco, 94158, California, USA
- Department of Radiology, University of Chicago, Chicago, 60637, Illinois, USA
| | - Min Guo
- State Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou, 310027, Zhejiang, China
- Laboratory of High Resolution Optical Imaging, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, 20892, Maryland, USA
| | - Yijun Su
- Laboratory of High Resolution Optical Imaging, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, 20892, Maryland, USA
- Advanced Imaging and Microscopy Resource, National Institutes of Health, Bethesda, 20892, Maryland, USA
- Janelia Research Campus, Howard Hughes Medical Institute, Ashburn, 20147, Virginia, USA
| | - Jiji Chen
- Advanced Imaging and Microscopy Resource, National Institutes of Health, Bethesda, 20892, Maryland, USA
| | - Yicong Wu
- Laboratory of High Resolution Optical Imaging, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, 20892, Maryland, USA
| | - Junyu Liu
- State Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou, 310027, Zhejiang, China
| | - Atharva Agashe
- Department of Mechanical Engineering, Virginia Tech, Blacksburg, 24061, Virginia, USA
| | - Robert S. Fischer
- Cell Biology and Physiology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, 20892, Maryland, USA
| | - Shalin B. Mehta
- CZ Biohub SF, San Francisco, 94158, California, USA
- Department of Radiology, University of Chicago, Chicago, 60637, Illinois, USA
- Bell Center, Marine Biological Laboratory, Woods Hole, 02543, Massachusetts, USA
| | - Abhishek Kumar
- Bell Center, Marine Biological Laboratory, Woods Hole, 02543, Massachusetts, USA
| | - Tobias I. Baskin
- Biology Department, University of Massachusetts, Amherst, 01003, Maryland, USA
- Whitman Center, Marine Biological Laboratory, Woods Hole, 02543, Massachusetts, USA
| | - Valentin Jamouillé
- Cell Biology and Physiology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, 20892, Maryland, USA
- Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, V5A 1S6, British Columbia, Canada
| | - Huafeng Liu
- State Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou, 310027, Zhejiang, China
| | - Vinay Swaminathan
- Department of Clinical Sciences, Lund University, Lund, SE-221 00, Scania, Sweden
- Wallenberg Centre for Molecular Medicine, Lund University, Lund, SE-221 00, Scania, Sweden
| | - Amrinder Nain
- Department of Mechanical Engineering, Virginia Tech, Blacksburg, 24061, Virginia, USA
- Department of Biomedical Engineering and Mechanics, Virginia Tech, Blacksburg, 24061, Virginia, USA
| | - Rudolf Oldenbourg
- Bell Center, Marine Biological Laboratory, Woods Hole, 02543, Massachusetts, USA
| | - Patrick La Riviére
- Department of Radiology, University of Chicago, Chicago, 60637, Illinois, USA
- Whitman Center, Marine Biological Laboratory, Woods Hole, 02543, Massachusetts, USA
| | - Hari Shroff
- Laboratory of High Resolution Optical Imaging, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, 20892, Maryland, USA
- Advanced Imaging and Microscopy Resource, National Institutes of Health, Bethesda, 20892, Maryland, USA
- Janelia Research Campus, Howard Hughes Medical Institute, Ashburn, 20147, Virginia, USA
- Whitman Center, Marine Biological Laboratory, Woods Hole, 02543, Massachusetts, USA
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5
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Hoveidaei AH, Sadat-Shojai M, Mosalamiaghili S, Salarikia SR, Roghani-Shahraki H, Ghaderpanah R, Ersi MH, Conway JD. Nano-hydroxyapatite structures for bone regenerative medicine: Cell-material interaction. Bone 2024; 179:116956. [PMID: 37951520 DOI: 10.1016/j.bone.2023.116956] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 11/04/2023] [Accepted: 11/05/2023] [Indexed: 11/14/2023]
Abstract
Bone tissue engineering holds great promise for the regeneration of damaged or severe bone defects. However, several challenges hinder its translation into clinical practice. To address these challenges, interdisciplinary efforts and advances in biomaterials, cell biology, and bioengineering are required. In recent years, nano-hydroxyapatite (nHA)-based scaffolds have emerged as a promising approach for the development of bone regenerative agents. The unique similarity of nHA with minerals found in natural bones promotes remineralization and stimulates bone growth, which are crucial factors for efficient bone regeneration. Moreover, nHA exhibits desirable properties, such as strong chemical interactions with bone and facilitation of tissue growth, without inducing inflammation or toxicity. It also promotes osteoblast survival, adhesion, and proliferation, as well as increasing alkaline phosphatase activity, osteogenic differentiation, and bone-specific gene expression. However, it is important to note that the effect of nHA on osteoblast behavior is dose-dependent, with cytotoxic effects observed at higher doses. Additionally, the particle size of nHA plays a crucial role, with smaller particles having a more significant impact. Therefore, in this review, we highlighted the potential of nHA for improving bone regeneration processes and summarized the available data on bone cell response to nHA-based scaffolds. In addition, an attempt is made to portray the current status of bone tissue engineering using nHA/polymer hybrids and some recent scientific research in the field.
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Affiliation(s)
- Amir Human Hoveidaei
- International Center for Limb Lengthening, Rubin Institute for Advanced Orthopedics, Sinai Hospital of Baltimore, Baltimore, MD, USA
| | - Mehdi Sadat-Shojai
- Department of Chemistry, College of Sciences, Shiraz University, Shiraz, Iran
| | - Seyedarad Mosalamiaghili
- Burn and Wound Healing Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | | | - Rezvan Ghaderpanah
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Hamed Ersi
- Evidence Based Medicine Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran; Clinical Research Development Center of Shahid Mohammadi Hospital, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Janet D Conway
- International Center for Limb Lengthening, Rubin Institute for Advanced Orthopedics, Sinai Hospital of Baltimore, Baltimore, MD, USA.
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6
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Ozkendir O, Karaca I, Cullu S, Erdoğan OC, Yaşar HN, Dikici S, Owen R, Aldemir Dikici B. Engineering periodontal tissue interfaces using multiphasic scaffolds and membranes for guided bone and tissue regeneration. BIOMATERIALS ADVANCES 2024; 157:213732. [PMID: 38134730 DOI: 10.1016/j.bioadv.2023.213732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 12/06/2023] [Accepted: 12/11/2023] [Indexed: 12/24/2023]
Abstract
Periodontal diseases are one of the greatest healthcare burdens worldwide. The periodontal tissue compartment is an anatomical tissue interface formed from the periodontal ligament, gingiva, cementum, and bone. This multifaceted composition makes tissue engineering strategies challenging to develop due to the interface of hard and soft tissues requiring multiphase scaffolds to recreate the native tissue architecture. Multilayer constructs can better mimic tissue interfaces due to the individually tuneable layers. They have different characteristics in each layer, with modulation of mechanical properties, material type, porosity, pore size, morphology, degradation properties, and drug-releasing profile all possible. The greatest challenge of multilayer constructs is to mechanically integrate consecutive layers to avoid delamination, especially when using multiple manufacturing processes. Here, we review the development of multilayer scaffolds that aim to recapitulate native periodontal tissue interfaces in terms of physical, chemical, and biological characteristics. Important properties of multiphasic biodegradable scaffolds are highlighted and summarised, with design requirements, biomaterials, and fabrication methods, as well as post-treatment and drug/growth factor incorporation discussed.
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Affiliation(s)
- Ozgu Ozkendir
- Department of Bioengineering, Izmir Institute of Technology, Urla, Izmir 35433, Turkey
| | - Ilayda Karaca
- Department of Bioengineering, Izmir Institute of Technology, Urla, Izmir 35433, Turkey
| | - Selin Cullu
- Department of Bioengineering, Izmir Institute of Technology, Urla, Izmir 35433, Turkey
| | - Oğul Can Erdoğan
- Department of Molecular Biology and Genetics, Izmir Institute of Technology, Urla, Izmir 35433, Turkey
| | - Hüsniye Nur Yaşar
- Department of Molecular Biology and Genetics, Izmir Institute of Technology, Urla, Izmir 35433, Turkey
| | - Serkan Dikici
- Department of Bioengineering, Izmir Institute of Technology, Urla, Izmir 35433, Turkey
| | - Robert Owen
- School of Pharmacy, University of Nottingham Biodiscovery Institute, University of Nottingham, Nottingham NG7 2RD, United Kingdom
| | - Betül Aldemir Dikici
- Department of Bioengineering, Izmir Institute of Technology, Urla, Izmir 35433, Turkey.
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7
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Yadav P, Shah R, Roy A, Jani S, Chatterjee K, Saini DK. Cellular Senescence Program is Sensitive to Physical Differences in Polymeric Tissue Scaffolds. ACS MATERIALS AU 2024; 4:35-44. [PMID: 38221924 PMCID: PMC10786134 DOI: 10.1021/acsmaterialsau.3c00057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 09/19/2023] [Accepted: 09/22/2023] [Indexed: 01/16/2024]
Abstract
A typical cellular senescence program involves exposing cells to DNA-damaging agents such as ionization radiation or chemotherapeutic drugs, which cause multipronged changes, including increased cell size and volume, the onset of enhanced oxidative stress, and inflammation. In the present study, we examined if the senescence onset decision is sensitive to the design, porosity, and architecture of the substrate. To address this, we generated a library of polymeric scaffolds widely used in tissue engineering of varied stiffness, architecture, and porosity. Using irradiated A549 lung cancer cells, we examined the differences between cellular responses in these 3D scaffold systems and observed that senescence onset is equally diminished. When compared to the two-dimensional (2D) culture formats, there were profound changes in cell size and senescence induction in three-dimensional (3D) scaffolds. We further establish that these observed differences in the senescence state can be attributed to the altered cell spreading and cellular interactions on these substrates. This study elucidates the role of scaffold architecture in the cellular senescence program.
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Affiliation(s)
- Parul Yadav
- Department
of Bioengineering, Indian Institute of Science, C.V Raman Avenue, Bangalore, India 560012
| | - Rahul Shah
- Department
of Materials Engineering, Indian Institute
of Science, C.V Raman
Avenue, Bangalore, India 560012
| | - Anindo Roy
- Department
of Materials Engineering, Indian Institute
of Science, C.V Raman
Avenue, Bangalore, India 560012
| | - Sibani Jani
- Department
of Bioengineering, Indian Institute of Science, C.V Raman Avenue, Bangalore, India 560012
| | - Kaushik Chatterjee
- Department
of Bioengineering, Indian Institute of Science, C.V Raman Avenue, Bangalore, India 560012
- Department
of Materials Engineering, Indian Institute
of Science, C.V Raman
Avenue, Bangalore, India 560012
| | - Deepak Kumar Saini
- Department
of Bioengineering, Indian Institute of Science, C.V Raman Avenue, Bangalore, India 560012
- Department
of Developmental Biology and Genetics, C.V Raman Avenue, Indian Institute of Science, Bangalore, India 560012
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8
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Tavakoli M, Mirhaj M, Varshosaz J, Al-Musawi MH, Almajidi YQ, Danesh Pajooh AM, Shahriari-Khalaji M, Sharifianjazi F, Alizadeh M, Labbaf S, Shahrebabaki KE, Nasab PM, Firuzeh M, Esfahani SN. Keratin- and VEGF-Incorporated Honey-Based Sponge-Nanofiber Dressing: An Ideal Construct for Wound Healing. ACS APPLIED MATERIALS & INTERFACES 2023; 15:55276-55286. [PMID: 37990423 DOI: 10.1021/acsami.3c11093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2023]
Abstract
To overcome the drawbacks of single-layered wound dressings, bilayer dressings are now introduced as an alternative to achieve effective and long-term treatment. Here, a bilayer dressing composed of electrospun nanofibers in the bottom layer (BL) and a sponge structure as the top layer (TL) is presented. Hydrophilic poly(acrylic acid) (PAAc)-honey (Hny) with interconnected pores of 76.04 μm was prepared as the TL and keratin (Kr), Hny, and vascular endothelial growth factor (VEGF) were prepared as the BL. VEGF indicates a gradual release over 7 days, promoting angiogenesis, as proven by the chick chorioallantoic membrane assay and in vivo tissue histomorphology observation. Additionally, the fabricated dressing material indicated a satisfactory tensile profile, cytocompatibility for human keratinocyte cells, and the ability to promote cell attachment and migration. The in vivo animal model demonstrated that the full-thickness wound healed faster when it was covered with PAAc-Hny/Hny-Kr-VEGF than in other groups. Additionally, faster blood vessel formation, collagen synthetization, and epidermal layer generation were also confirmed, which have proven efficient healing acceleration in wounds treated with synthesized bilayer dressings. Our findings indicated that the fabricated material can be promising as a functional wound dressing.
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Affiliation(s)
- Mohamadreza Tavakoli
- Pharmacy Student's Research Committee, School of Pharmacy, Isfahan University of Medical Sciences, Isfahan 81746-73461, Iran
- Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - Marjan Mirhaj
- Pharmacy Student's Research Committee, School of Pharmacy, Isfahan University of Medical Sciences, Isfahan 81746-73461, Iran
- Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - Jaleh Varshosaz
- Novel Drug Delivery Systems Research Centre, Department of Pharmaceutics, School of Pharmacy, Isfahan University of Medical Sciences, Isfahan 81746-73461, Iran
| | - Mastafa H Al-Musawi
- Department of Clinical Laboratory Science, College of Pharmacy, Mustansiriyah University, Baghdad 10052, Iraq
| | - Yasir Q Almajidi
- Department of Pharmacy (Pharmaceutics), Baghdad College of Medical Sciences, Baghdad 10047, Iraq
| | - Amir Mohammad Danesh Pajooh
- Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran 1439956191, Iran
| | - Mina Shahriari-Khalaji
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Fariborz Sharifianjazi
- Department of Natural Sciences, School of Science and Technology, University of Georgia, Tbilisi 0171, Georgia
| | - Mansoor Alizadeh
- Department of Biomedical Engineering, Science and Research Branch, Islamic Azad University, Tehran 1477893855, Iran
| | - Sheyda Labbaf
- Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | | | - Pegah Madani Nasab
- Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - Mahboubeh Firuzeh
- Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - Salar Nasr Esfahani
- Department of Pathology, School of Medicine, Isfahan University of Medical Sciences, Isfahan 8174673461, Iran
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9
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Grolleman J, van Engeland NCA, Raza M, Azimi S, Conte V, Sahlgren CM, Bouten CVC. Environmental stiffness restores mechanical homeostasis in vimentin-depleted cells. Sci Rep 2023; 13:18374. [PMID: 37884575 PMCID: PMC10603057 DOI: 10.1038/s41598-023-44835-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 10/12/2023] [Indexed: 10/28/2023] Open
Abstract
Recent experimental evidence indicates a role for the intermediate filament vimentin in regulating cellular mechanical homeostasis, but its precise contribution remains to be discovered. Mechanical homeostasis requires a balanced bi-directional interplay between the cell's microenvironment and the cellular morphological and mechanical state-this balance being regulated via processes of mechanotransduction and mechanoresponse, commonly referred to as mechanoreciprocity. Here, we systematically analyze vimentin-expressing and vimentin-depleted cells in a swatch of in vitro cellular microenvironments varying in stiffness and/or ECM density. We find that vimentin-expressing cells maintain mechanical homeostasis by adapting cellular morphology and mechanics to micromechanical changes in the microenvironment. However, vimentin-depleted cells lose this mechanoresponse ability on short timescales, only to reacquire it on longer time scales. Indeed, we find that the morphology and mechanics of vimentin-depleted cell in stiffened microenvironmental conditions can get restored to the homeostatic levels of vimentin-expressing cells. Additionally, we observed vimentin-depleted cells increasing collagen matrix synthesis and its crosslinking, a phenomenon which is known to increase matrix stiffness, and which we now hypothesize to be a cellular compensation mechanism for the loss of vimentin. Taken together, our findings provide further insight in the regulating role of intermediate filament vimentin in mediating mechanoreciprocity and mechanical homeostasis.
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Affiliation(s)
- Janine Grolleman
- Department of Biomedical Engineering, Soft Tissue Engineering and Mechanobiology, Eindhoven University of Technology, Eindhoven, 5612AE, The Netherlands
- Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, 5600MB, The Netherlands
| | - Nicole C A van Engeland
- Department of Biomedical Engineering, Soft Tissue Engineering and Mechanobiology, Eindhoven University of Technology, Eindhoven, 5612AE, The Netherlands
- Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, 5600MB, The Netherlands
- Faculty of Science and Engineering, Cell Biology, Åbobo Akademi University, 20520, Turku, Finland
| | - Minahil Raza
- Faculty of Science and Engineering, Information Technology, Åbobo Akademi University, 20500, Turku, Finland
| | - Sepinoud Azimi
- Faculty of Science and Engineering, Information Technology, Åbobo Akademi University, 20500, Turku, Finland
- Department of Information and Communication Technology, Technology, Policy and Management, Delft University of Technology, Delft, 2600GA, The Netherlands
| | - Vito Conte
- Department of Biomedical Engineering, Soft Tissue Engineering and Mechanobiology, Eindhoven University of Technology, Eindhoven, 5612AE, The Netherlands.
- Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, 5600MB, The Netherlands.
- Institute for Bioengineering of Catalonia, The Barcelona Institute of Science and Technology, 08036, Barcelona, Spain.
| | - Cecilia M Sahlgren
- Department of Biomedical Engineering, Soft Tissue Engineering and Mechanobiology, Eindhoven University of Technology, Eindhoven, 5612AE, The Netherlands.
- Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, 5600MB, The Netherlands.
- Faculty of Science and Engineering, Cell Biology, Åbobo Akademi University, 20520, Turku, Finland.
| | - Carlijn V C Bouten
- Department of Biomedical Engineering, Soft Tissue Engineering and Mechanobiology, Eindhoven University of Technology, Eindhoven, 5612AE, The Netherlands.
- Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, 5600MB, The Netherlands.
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10
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Brissenden AJ, Amsden BG. In situ forming macroporous biohybrid hydrogel for nucleus pulposus cell delivery. Acta Biomater 2023; 170:169-184. [PMID: 37598793 DOI: 10.1016/j.actbio.2023.08.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 08/01/2023] [Accepted: 08/15/2023] [Indexed: 08/22/2023]
Abstract
Degenerative intervertebral disc disease is a common source of chronic pain and reduced quality of life in people over the age of 40. While degeneration occurs throughout the disc, it most often initiates in the nucleus pulposus (NP). Minimally invasive delivery of NP cells within hydrogels that can restore and maintain the disc height while regenerating the damaged NP tissue is a promising treatment strategy for this condition. Towards this goal, a biohybrid ABA dimethacrylate triblock copolymer was synthesized, possessing a lower critical solution temperature below 37 °C and which contained as its central block an MMP-degradable peptide flanked by poly(trimethylene carbonate) blocks bearing pendant oligoethylene glycol groups. This triblock prepolymer was used to form macroporous NP cell-laden hydrogels via redox initiated (ammonium persulfate/sodium bisulfite) crosslinking, with or without the inclusion of thiolated chondroitin sulfate. The resulting macroporous hydrogels had water and mechanical properties similar to those of human NP tissue and were mechanically resilient. The hydrogels supported NP cell attachment and growth over 28 days in hypoxic culture. In hydrogels prepared with the triblock copolymer but without the chondroitin sulfate the NP cells were distributed homogeneously throughout in clusters and deposited collagen type II and sulfated glycosaminoglycans but not collagen type I. This hydrogel formulation warrants further investigation as a cell delivery vehicle to regenerate degenerated NP tissue. STATEMENT OF SIGNIFICANCE: The intervertebral disc between the vertebral bones of the spine consists of three regions: a gel-like central nucleus pulposus (NP) within the annulus fibrosis, and bony endplates. Degeneration of the intervertebral disc is a source of chronic pain in the elderly and most commonly initiates in the NP. Replacement of degenerated NP tissue with a NP cell-laden hydrogel is a promising treatment strategy. Herein we demonstrate that a crosslinkable polymer with a lower critical solution temperature below 37 °C can be used to form macroporous hydrogels for this purpose. The hydrogels are capable of supporting NP cells, which deposit collagen II and sulfated glycosaminoglycans, while also possessing mechanical properties matching those of human NP tissue.
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Affiliation(s)
- Amanda J Brissenden
- Department of Chemical Engineering, Queen's University, Kingston, ON, Canada K7L 3N6
| | - Brian G Amsden
- Department of Chemical Engineering, Queen's University, Kingston, ON, Canada K7L 3N6.
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11
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Lavrentev FV, Shilovskikh VV, Alabusheva VS, Yurova VY, Nikitina AA, Ulasevich SA, Skorb EV. Diffusion-Limited Processes in Hydrogels with Chosen Applications from Drug Delivery to Electronic Components. Molecules 2023; 28:5931. [PMID: 37570901 PMCID: PMC10421015 DOI: 10.3390/molecules28155931] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 08/02/2023] [Accepted: 08/03/2023] [Indexed: 08/13/2023] Open
Abstract
Diffusion is one of the key nature processes which plays an important role in respiration, digestion, and nutrient transport in cells. In this regard, the present article aims to review various diffusion approaches used to fabricate different functional materials based on hydrogels, unique examples of materials that control diffusion. They have found applications in fields such as drug encapsulation and delivery, nutrient delivery in agriculture, developing materials for regenerative medicine, and creating stimuli-responsive materials in soft robotics and microrobotics. In addition, mechanisms of release and drug diffusion kinetics as key tools for material design are discussed.
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Affiliation(s)
- Filipp V. Lavrentev
- Infochemistry Scientific Center, ITMO University, 191002 Saint Petersburg, Russia; (V.S.A.); (V.Y.Y.); (A.A.N.); (S.A.U.)
| | - Vladimir V. Shilovskikh
- Laboratory of Polymer and Composite Materials “SmartTextiles”, IRC–X-ray Coherent Optics, Immanuel Kant Baltic Federal University, 236041 Kaliningrad, Russia;
| | - Varvara S. Alabusheva
- Infochemistry Scientific Center, ITMO University, 191002 Saint Petersburg, Russia; (V.S.A.); (V.Y.Y.); (A.A.N.); (S.A.U.)
| | - Veronika Yu. Yurova
- Infochemistry Scientific Center, ITMO University, 191002 Saint Petersburg, Russia; (V.S.A.); (V.Y.Y.); (A.A.N.); (S.A.U.)
| | - Anna A. Nikitina
- Infochemistry Scientific Center, ITMO University, 191002 Saint Petersburg, Russia; (V.S.A.); (V.Y.Y.); (A.A.N.); (S.A.U.)
| | - Sviatlana A. Ulasevich
- Infochemistry Scientific Center, ITMO University, 191002 Saint Petersburg, Russia; (V.S.A.); (V.Y.Y.); (A.A.N.); (S.A.U.)
| | - Ekaterina V. Skorb
- Infochemistry Scientific Center, ITMO University, 191002 Saint Petersburg, Russia; (V.S.A.); (V.Y.Y.); (A.A.N.); (S.A.U.)
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12
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Amens JN, Bahçecioğlu G, Dwyer K, Yue XS, Stack MS, Hilliard TS, Zorlutuna P. Maternal obesity driven changes in collagen linearity of breast extracellular matrix induces invasive mammary epithelial cell phenotype. Biomaterials 2023; 297:122110. [PMID: 37062214 PMCID: PMC10192205 DOI: 10.1016/j.biomaterials.2023.122110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 01/31/2023] [Accepted: 04/01/2023] [Indexed: 04/18/2023]
Abstract
Obesity has been linked with numerous health issues as well as an increased risk of breast cancer. Although effects of direct obesity in patient outcomes is widely studied, effects of exposure to obesity-related systemic influences in utero have been overlooked. In this study, we investigated the effect of multigenerational obesity on epithelial cell migration and invasion using decellularized breast tissues explanted from normal female mouse pups from a diet induced multigenerational obesity mouse model. We first studied the effect of multigenerational diet on the mechanical properties, adipocyte size, and collagen structure of these mouse breast tissues, and then, examined the migration and invasion behavior of normal (KTB-21) and cancerous (MDA-MB-231) human mammary epithelial cells on the decellularized matrices from each diet group. Breast tissues of mice whose dams had been fed with high-fat diet exhibited larger adipocytes and thicker and curvier collagen fibers, but only slightly elevated elastic modulus and inflammatory cytokine levels. MDA-MB-231 cancer cell motility and invasion were significantly greater on the decellularized matrices from mice whose dams were fed with high-fat diet. A similar trend was observed with normal KTB-21 cells. Our results showed that the collagen curvature was the dominating factor on this enhanced motility and stretching the matrices to equalize the collagen fiber linearity of the matrices ameliorated the observed increase in cell migration and invasion in the mice that were exposed to a high-fat diet in utero. Previous studies indicated an increase in serum leptin concentration for those children born to an obese mother. We generated extracellular matrices using primary fibroblasts exposed to various concentrations of leptin. This produced curvier ECM and increased breast cancer cell motility for cells seeded on the decellularized ECM generated with increasing leptin concentration. Our study shows that exposure to obesity in utero is influential in determining the extracellular matrix structure, and that the resultant change in collagen curvature is a critical factor in regulating the migration and invasion of breast cancer cells.
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Affiliation(s)
- Jensen N Amens
- Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN, 46556, USA
| | - Gökhan Bahçecioğlu
- Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN, 46556, USA
| | - Kiera Dwyer
- Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN, 46556, USA
| | - Xiaoshan S Yue
- Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN, 46556, USA
| | - M Sharon Stack
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN, 46556, USA; Harper Cancer Research Institute, University of Notre Dame, Notre Dame, IN, 46556, USA
| | - Tyvette S Hilliard
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN, 46556, USA; Harper Cancer Research Institute, University of Notre Dame, Notre Dame, IN, 46556, USA
| | - Pinar Zorlutuna
- Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN, 46556, USA; Bioengineering Graduate Program, University of Notre Dame, Notre Dame, IN, 46556, USA; Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN, 46556, USA; Harper Cancer Research Institute, University of Notre Dame, Notre Dame, IN, 46556, USA.
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13
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Hu Y, Becker ML, Willits RK. Quantification of cell migration: metrics selection to model application. Front Cell Dev Biol 2023; 11:1155882. [PMID: 37255596 PMCID: PMC10225508 DOI: 10.3389/fcell.2023.1155882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 05/05/2023] [Indexed: 06/01/2023] Open
Abstract
Cell migration plays an essential role in physiological and pathological states, such as immune response, tissue generation and tumor development. This phenomenon can occur spontaneously or it can be triggered by an external stimuli, including biochemical, mechanical, or electrical cues that induce or direct cells to migrate. The migratory response to these cues is foundational to several fields including neuroscience, cancer and regenerative medicine. Various platforms are available to qualitatively and quantitatively measure cell migration, making the measurements of cell motility straight-forward. Migratory behavior must be analyzed by multiple metrics and then models to connect the measurements to physiological meaning. This review will focus on describing and quantifying cell movement for individual cell migration.
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Affiliation(s)
- Yang Hu
- Department of Chemical Engineering, College of Engineering, Northeastern University, Boston, MA, United States
| | - Matthew L. Becker
- Departments of Chemistry, Mechanical Engineering and Materials Science, Biomedical Engineering and Orthopedic Surgery, Duke University, Durham, NC, United States
| | - Rebecca Kuntz Willits
- Department of Chemical Engineering, College of Engineering, Northeastern University, Boston, MA, United States
- Department of Bioengineering, College of Engineering, Northeastern University, Boston, MA, United States
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14
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PDGF and VEGF-releasing bi-layer wound dressing made of sodium tripolyphosphate crosslinked gelatin-sponge layer and a carrageenan nanofiber layer. Int J Biol Macromol 2023; 233:123491. [PMID: 36736985 DOI: 10.1016/j.ijbiomac.2023.123491] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 01/13/2023] [Accepted: 01/27/2023] [Indexed: 02/04/2023]
Abstract
The use of dressings is one of the most common methods for wound treatment. Since most single-layer dressings cannot mimic the hierarchical structure of the skin well, multi-layer dressings have been considered. In this study, a bilayer dressing was fabricated using a gelatin sponge layer cross-linked with sodium tripolyphosphate (Gel-STPP) and a layer of carrageenan nanofibers containing platelet-rich fibrin (Carr-PRF). Chemical interactions between the two layers were characterized by FTIR, and the microstructure was visualized by SEM. It was found that the presence of Carr-PRF nanofiber layer increased tensile strength by 12.96 % (from 0.216 ± 0.015 to 0.268 ± 0.036 MPa) and elastic modulus by 56.70 % (from 0.388 ± 0.072 to 0.608 ± 0.029 MPa) compared to Gel-STPP sponge. Gel-STPP/Carr-PRF wound dressing had a 45.76 ± 4.18 % degradability after 7 days of immersion in phosphate buffered saline (PBS). PRF-containing bilayer wound dressing was able to sustainably release growth factors over 7 days. The Carr-PRF nanofiber layer coated on Gel-STPP sponge was an ideal environment for adhesion and proliferation of L929 cells. Gel-STPP/Carr-PRF bilayer dressing outperformed the other tested samples in terms of angiogenic potential. Average wound closure was 94.21 ± 2.06 % in Gel-STPP/Carr-PRF dressing treated rats after 14 days, and based on the histopathological and immunohistochemical examinations, the Gel-STPP/Carr-PRF dressing group augmented full-thickness wound healing, keratin layer and skin appendages formation after 14 days.
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15
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Stöberl S, Balles M, Kellerer T, Rädler JO. Photolithographic microfabrication of hydrogel clefts for cell invasion studies. LAB ON A CHIP 2023; 23:1886-1895. [PMID: 36867426 DOI: 10.1039/d2lc01105k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Invasion of migrating cells into surrounding tissue plays a key role in cancer metastasis and immune response. In order to assess invasiveness, most in vitro invasion assays measure the degree to which cells migrate between microchambers that provide a chemoattractant gradient across a polymeric membrane with defined pores. However, in real tissue cells experience soft, mechanically deformable microenvironments. Here we introduce RGD-functionalized hydrogel structures that present pressurized clefts for invasive migration of cells between reservoirs maintaining a chemotactic gradient. Using UV-photolithography, equally spaced blocks of polyethylene glycol-norbornene (PEG-NB) hydrogels are formed, which subsequently swell and close the interjacent gaps. The swelling ratio and final contours of the hydrogel blocks were determined using confocal microscopy confirming a swelling induced closure of the structures. The velocity profile of cancer cells transmigrating through the clefts, which we name 'sponge clamp', is found to depend on the elastic modulus as well as the gap size between the swollen blocks. The 'sponge clamp' discriminates the invasiveness of two distinct cell lines, MDA-MB-231 and HT-1080. The approach provides soft 3D-microstructures mimicking invasion conditions in extracellular matrix.
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Affiliation(s)
- Stefan Stöberl
- Faculty of Physics and Center for NanoScience, Ludwig Maximilians-University, Munich, Germany.
| | - Miriam Balles
- Faculty of Physics and Center for NanoScience, Ludwig Maximilians-University, Munich, Germany.
| | - Thomas Kellerer
- Faculty of Physics and Center for NanoScience, Ludwig Maximilians-University, Munich, Germany.
- Department of Applied Science and Mechatronics, University of Applied Science, Munich, Germany
| | - Joachim O Rädler
- Faculty of Physics and Center for NanoScience, Ludwig Maximilians-University, Munich, Germany.
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16
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Woodley JP, Lambert DW, Asencio IO. Reduced Fibroblast Activation on Electrospun Polycaprolactone Scaffolds. Bioengineering (Basel) 2023; 10:bioengineering10030348. [PMID: 36978739 PMCID: PMC10045272 DOI: 10.3390/bioengineering10030348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 03/03/2023] [Accepted: 03/08/2023] [Indexed: 03/14/2023] Open
Abstract
In vivo, quiescent fibroblasts reside in three-dimensional connective tissues and are activated in response to tissue injury before proliferating rapidly and becoming migratory and contractile myofibroblasts. When deregulated, chronic activation drives fibrotic disease. Fibroblasts cultured on stiff 2D surfaces display a partially activated phenotype, whilst many 3D environments limit fibroblast activation. Cell mechanotransduction, spreading, polarity, and integrin expression are controlled by material mechanical properties and micro-architecture. Between 3D culture systems, these features are highly variable, and the challenge of controlling individual properties without altering others has led to an inconsistent picture of fibroblast behaviour. Electrospinning offers greater control of mechanical properties and microarchitecture making it a valuable model to study fibroblast activation behaviour in vitro. Here, we present a comprehensive characterisation of the activation traits of human oral fibroblasts grown on a microfibrous scaffold composed of electrospun polycaprolactone. After over 7 days in the culture, we observed a reduction in proliferation rates compared to cells cultured in 2D, with low KI67 expression and no evidence of cellular senescence. A-SMA mRNA levels fell, and the expression of ECM protein-coding genes also decreased. Electrospun fibrous scaffolds, therefore, represent a tuneable platform to investigate the mechanisms of fibroblast activation and their roles in fibrotic disease.
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17
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Jana A, Sarkar A, Zhang H, Agashe A, Wang J, Paul R, Gov NS, DeLuca JG, Nain AS. Mitotic outcomes and errors in fibrous environments. Proc Natl Acad Sci U S A 2023; 120:e2120536120. [PMID: 36848565 PMCID: PMC10013866 DOI: 10.1073/pnas.2120536120] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 01/12/2023] [Indexed: 03/01/2023] Open
Abstract
During mitosis, cells round up and utilize the interphase adhesion sites within the fibrous extracellular matrix (ECM) as guidance cues to orient the mitotic spindles. Here, using suspended ECM-mimicking nanofiber networks, we explore mitotic outcomes and error distribution for various interphase cell shapes. Elongated cells attached to single fibers through two focal adhesion clusters (FACs) at their extremities result in perfect spherical mitotic cell bodies that undergo significant 3-dimensional (3D) displacement while being held by retraction fibers (RFs). Increasing the number of parallel fibers increases FACs and retraction fiber-driven stability, leading to reduced 3D cell body movement, metaphase plate rotations, increased interkinetochore distances, and significantly faster division times. Interestingly, interphase kite shapes on a crosshatch pattern of four fibers undergo mitosis resembling single-fiber outcomes due to rounded bodies being primarily held in position by RFs from two perpendicular suspended fibers. We develop a cortex-astral microtubule analytical model to capture the retraction fiber dependence of the metaphase plate rotations. We observe that reduced orientational stability, on single fibers, results in increased monopolar mitotic defects, while multipolar defects become dominant as the number of adhered fibers increases. We use a stochastic Monte Carlo simulation of centrosome, chromosome, and membrane interactions to explain the relationship between the observed propensity of monopolar and multipolar defects and the geometry of RFs. Overall, we establish that while bipolar mitosis is robust in fibrous environments, the nature of division errors in fibrous microenvironments is governed by interphase cell shapes and adhesion geometries.
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Affiliation(s)
- Aniket Jana
- Department of Mechanical Engineering, Virginia Tech, Blacksburg, VA24061
| | - Apurba Sarkar
- School of Mathematical and Computational Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata700032, India
| | - Haonan Zhang
- Department of Mechanical Engineering, Virginia Tech, Blacksburg, VA24061
| | - Atharva Agashe
- Department of Mechanical Engineering, Virginia Tech, Blacksburg, VA24061
| | - Ji Wang
- Department of Biomedical Engineering and Mechanics, Virginia Tech, Blacksburg, VA24061
| | - Raja Paul
- School of Mathematical and Computational Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata700032, India
| | - Nir S. Gov
- Department of Chemical and Biological Physics, Weizmann Institute of Science, Rehovot7610001, Israel
| | - Jennifer G. DeLuca
- Department of Biochemistry and Molecular Biology, Colorado State University, Fort Collins, CO80523
| | - Amrinder S. Nain
- Department of Mechanical Engineering, Virginia Tech, Blacksburg, VA24061
- Department of Biomedical Engineering and Mechanics, Virginia Tech, Blacksburg, VA24061
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18
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Geopolymer Materials for Bone Tissue Applications: Recent Advances and Future Perspectives. Polymers (Basel) 2023; 15:polym15051087. [PMID: 36904328 PMCID: PMC10007011 DOI: 10.3390/polym15051087] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 02/09/2023] [Accepted: 02/14/2023] [Indexed: 02/24/2023] Open
Abstract
With progress in the bone tissue engineering (BTE) field, there is an important need to develop innovative biomaterials to improve the bone healing process using reproducible, affordable, and low-environmental-impact alternative synthetic strategies. This review thoroughly examines geopolymers' state-of-the-art and current applications and their future perspectives for bone tissue applications. This paper aims to analyse the potential of geopolymer materials in biomedical applications by reviewing the recent literature. Moreover, the characteristics of materials traditionally used as bioscaffolds are also compared, critically analysing the strengths and weaknesses of their use. The concerns that prevented the widespread use of alkali-activated materials as biomaterials (such as their toxicity and limited osteoconductivity) and the potentialities of geopolymers as ceramic biomaterials have also been considered. In particular, the possibility of targeting their mechanical properties and morphologies through their chemical compositions to meet specific and relevant requirements, such as biocompatibility and controlled porosity, is described. A statistical analysis of the published scientific literature is presented. Data on "geopolymers for biomedical applications" were extracted from the Scopus database. This paper focuses on possible strategies necessary to overcome the barriers that have limited their application in biomedicine. Specifically, innovative hybrid geopolymer-based formulations (alkali-activated mixtures for additive manufacturing) and their composites that optimise the porous morphology of bioscaffolds while minimising their toxicity for BTE are discussed.
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19
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Moon HR, Saha S, Mugler A, Han B. Cells function as a ternary logic gate to decide migration direction under integrated chemical and fluidic cues. LAB ON A CHIP 2023; 23:631-644. [PMID: 36524874 PMCID: PMC9926949 DOI: 10.1039/d2lc00807f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 11/22/2022] [Indexed: 06/17/2023]
Abstract
Cells sense various environmental cues and subsequently process intracellular signals to decide their migration direction in many physiological and pathological processes. Although several signaling molecules and networks have been identified in these directed migrations, it still remains ambiguous to predict the migration direction under multiple and integrated cues, specifically chemical and fluidic cues. Here, we investigated the cellular signal processing machinery by reverse-engineering directed cell migration under integrated chemical and fluidic cues. We imposed controlled chemical and fluidic cues to cells using a microfluidic platform and analyzed the extracellular coupling of the cues with respect to the cellular detection limit. Then, the cell's migratory behavior was reverse-engineered to build a cellular signal processing system as a logic gate, which is based on a "selection" gate. This framework is further discussed with a minimal intracellular signaling network of a shared pathway model. The proposed framework of the ternary logic gate suggests a systematic view to understand how cells decode multiple cues and make decisions about the migration direction.
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Affiliation(s)
- Hye-Ran Moon
- School of Mechanical Engineering, Purdue University, West Lafayette, IN, USA.
| | - Soutick Saha
- Department of Physics and Astronomy, Purdue University, West Lafayette, IN, USA
| | - Andrew Mugler
- Department of Physics and Astronomy, Purdue University, West Lafayette, IN, USA
- Purdue Center for Cancer Research, Purdue University, West Lafayette, IN, USA
- Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Bumsoo Han
- School of Mechanical Engineering, Purdue University, West Lafayette, IN, USA.
- Purdue Center for Cancer Research, Purdue University, West Lafayette, IN, USA
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, USA
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20
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Meyer N, Bax DV, Beck J, Cameron RE, Best SM. Adjusting the physico-chemical properties of collagen scaffolds to accommodate primary osteoblasts and endothelial cells. Regen Biomater 2023; 10:rbad015. [PMID: 36937897 PMCID: PMC10019812 DOI: 10.1093/rb/rbad015] [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: 09/08/2022] [Revised: 12/08/2022] [Accepted: 01/09/2023] [Indexed: 03/12/2023] Open
Abstract
Collagen-based biomaterials are used widely as tissue engineering scaffolds because of their excellent bioactivity and their similarity to the natural ECM. The regeneration of healthy bone tissue requires simultaneous support for both osteoblasts and, where angiogenesis is intended, endothelial cells. Hence it is important to tailor carefully the biochemical and structural characteristics of the scaffold to suit the needs of each cell type. This work describes for the first time a systematic study to gain insight into the cell type-specific response of primary human osteoblast (hOBs) and human dermal microvascular endothelial cells (HDMECs) to insoluble collagen-based biomaterials. The behaviour was evaluated on both 2D films and 3D scaffolds, produced using freeze-drying. The collagen was cross-linked at various EDC/NHS concentrations and mono-cultured with hOBs and HDMECs to assess the effect of architectural features and scaffold stabilization on cell behaviour. It was observed that 3D scaffolds cross-linked at 30% of the standard conditions in literature offered an optimal combination of mechanical stiffness and cellular response for both cell types, although endothelial cells were more sensitive to the degree of cross-linking than hOBs. Architectural features have a time-dependent impact on the cell migration profile, with alignment being the most influential parameter overall.
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Affiliation(s)
- Nima Meyer
- Department of Materials Science and Metallurgy, University of Cambridge, Cambridge CB3 0FS, UK
| | | | - Jochen Beck
- Geistlich Pharma AG, Product Development, Wolhusen, Switzerland
| | - Ruth E Cameron
- Department of Materials Science and Metallurgy, University of Cambridge, Cambridge CB3 0FS, UK
| | - Serena M Best
- Department of Materials Science and Metallurgy, University of Cambridge, Cambridge CB3 0FS, UK
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21
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Shirai Y, Okano J, Nakagawa T, Katagi M, Nakae Y, Arakawa A, Koshinuma S, Yamamoto G, Kojima H. Bone marrow-derived vasculogenesis leads to scarless regeneration in deep wounds with periosteal defects. Sci Rep 2022; 12:20589. [PMID: 36446886 PMCID: PMC9708684 DOI: 10.1038/s41598-022-24957-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 11/22/2022] [Indexed: 12/02/2022] Open
Abstract
Deep skin wounds with periosteal defects, frequently caused by traffic accidents or radical dissection, are refractory. Transplant surgery is frequently performed, but patients are subjected to stress for long operation periods, the sacrifice of donor regions, or several complications, such as flap necrosis or intractable ulcers. Even if the defects are covered, a scar composed of fibrous tissue remains in the body, which can cause itching, dysesthesia, or repeated ulcers because of the lack of distribution of peripheral nerves or hair follicles. Thus, treatments with the aim of regenerating lost tissue for deep wounds with periosteal defects are needed. Here, we show that the use of gelatin sponges (GS), which have been used as haemostatic materials in clinical practice, allowed the regeneration of heterogeneous tissues, including periosteum, skin, and skin appendages, when used as scaffolds in deep wounds with periosteal defects in rats. Bone marrow transplantation in rats revealed the mechanism by which the microenvironment provided by GS enabled bone marrow-derived cells (BMDCs) to form a vascular niche, followed by regeneration of the periosteum, skin, or skin appendages such as hair follicles by local cells. Our findings demonstrated that vascular niche formation provided by BMDCs is crucial for heterogeneous tissue regeneration.
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Affiliation(s)
- Yuuki Shirai
- grid.410827.80000 0000 9747 6806Department of Oral and Maxillofacial Surgery, Shiga University of Medical Science, Shiga, Japan
| | - Junko Okano
- grid.410827.80000 0000 9747 6806Department of Plastic and Reconstructive Surgery, Shiga University of Medical Science, Shiga, Japan
| | - Takahiko Nakagawa
- grid.410827.80000 0000 9747 6806Department of Regenerative Medicine Development, Shiga University of Medical Science, Shiga, Japan ,grid.410827.80000 0000 9747 6806Department of Biocommunication Development, Shiga University of Medical Science, Shiga, Japan
| | - Miwako Katagi
- grid.410827.80000 0000 9747 6806Department of Stem Cell Biology and Regenerative Medicine, Shiga University of Medical Science, Shiga, Japan
| | - Yuki Nakae
- grid.410827.80000 0000 9747 6806Department of Stem Cell Biology and Regenerative Medicine, Shiga University of Medical Science, Shiga, Japan
| | - Atsuhiro Arakawa
- grid.410827.80000 0000 9747 6806Department of Plastic and Reconstructive Surgery, Shiga University of Medical Science, Shiga, Japan
| | - Shinya Koshinuma
- grid.410827.80000 0000 9747 6806Department of Oral and Maxillofacial Surgery, Shiga University of Medical Science, Shiga, Japan
| | - Gaku Yamamoto
- grid.410827.80000 0000 9747 6806Department of Oral and Maxillofacial Surgery, Shiga University of Medical Science, Shiga, Japan
| | - Hideto Kojima
- grid.410827.80000 0000 9747 6806Department of Regenerative Medicine Development, Shiga University of Medical Science, Shiga, Japan ,grid.410827.80000 0000 9747 6806Department of Biocommunication Development, Shiga University of Medical Science, Shiga, Japan
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22
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Miceli GC, Palumbo FS, Bonomo FP, Zingales M, Licciardi M. Polybutylene Succinate Processing and Evaluation as a Micro Fibrous Graft for Tissue Engineering Applications. Polymers (Basel) 2022; 14:4486. [PMID: 36365480 PMCID: PMC9655432 DOI: 10.3390/polym14214486] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 10/19/2022] [Accepted: 10/20/2022] [Indexed: 08/27/2023] Open
Abstract
A microfibrous tubular scaffold has been designed and fabricated by electrospinning using poly (1,4-butylene succinate) as biocompatible and biodegradable material. The scaffold morphology was optimized as a small diameter and micro-porous conduit, able to foster cell integration, adhesion, and growth while avoiding cell infiltration through the graft's wall. Scaffold morphology and mechanical properties were explored and compared to those of native conduits. Scaffolds were then seeded with adult normal human dermal fibroblasts to evaluate cytocompatibility in vitro. Haemolytic effect was evaluated upon incubation with diluted whole blood. The scaffold showed no delamination, and mechanical properties were in the physiological range for tubular conduits: elastic modulus (17.5 ± 1.6 MPa), ultimate tensile stress (3.95 ± 0.17 MPa), strain to failure (57 ± 4.5%) and suture retention force (2.65 ± 0.32 N). The shown degradation profile allows the graft to provide initial mechanical support and functionality while being colonized and then replaced by the host cells. This combination of features might represent a step toward future research on PBS as a biomaterial to produce scaffolds that provide structure and function over time and support host cell remodelling.
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Affiliation(s)
- Giovanni Carlo Miceli
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, 90123 Palermo, Italy
| | - Fabio Salvatore Palumbo
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, 90123 Palermo, Italy
| | - Francesco Paolo Bonomo
- Advanced Technology Network Center (ATeN Center), Università degli Studi di Palermo, 90128 Palermo, Italy
| | - Massimiliano Zingales
- Dipartimento di Ingegneria, Viale delle Scienze, Università degli Studi di Palermo, ed.8, 90128 Palermo, Italy
| | - Mariano Licciardi
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, 90123 Palermo, Italy
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23
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Tortorici M, Brauer E, Thiele M, Duda GN, Petersen A. Characterizing cell recruitment into isotropic and anisotropic biomaterials by quantification of spatial density gradients in vitro. Front Bioeng Biotechnol 2022; 10:939713. [PMID: 35992332 PMCID: PMC9389461 DOI: 10.3389/fbioe.2022.939713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 07/04/2022] [Indexed: 11/13/2022] Open
Abstract
The success of cell-free in situ tissue engineering approaches depends on an appropriate recruitment of autologous cells from neighboring tissues. This identifies cellular migration as a critical parameter for the pre-clinical characterization of biomaterials. Here, we present a new method to quantify both the extent and the spatial anisotropy of cell migration in vitro. For this purpose, a cell spheroid is used as a cell source to provide a high number of cells for cellular invasion and, at the same time, to guarantee a controlled and spatially localized contact to the material. Therefore, current limitations of assays based on 2D cell sources can be overcome. We tested the method on three biomaterials that are in clinical use for soft tissue augmentation in maxilla-facial surgery and a substrate used for 3D in vitro cell culture. The selected biomaterials were all collagen-derived, but differed in their internal architecture. The analysis of cellular isodensity profiles within the biomaterials allowed the identification of the extent and the preferential directions of migration, as well as their relation to the biomaterials and their specific pore morphologies. The higher cell density within the biomaterials resulting from the here-introduced cell spheroid assay compared to established 2D cell layer assays suggests a better representation of the in vivo situation. Consequently, the presented method is proposed to advance the pre-clinical evaluation of cell recruitment into biomaterials, possibly leading to an improved prediction of the regeneration outcome.
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Affiliation(s)
- Martina Tortorici
- Julius Wolff Institute, Berlin Institute of Health at Charité—Universitätsmedizin Berlin, Berlin, Germany
- Berlin-Brandenburg School for Regenerative Therapies, Charité—Universitätsmedizin Berlin, Berlin, Germany
| | - Erik Brauer
- Julius Wolff Institute, Berlin Institute of Health at Charité—Universitätsmedizin Berlin, Berlin, Germany
- Berlin-Brandenburg School for Regenerative Therapies, Charité—Universitätsmedizin Berlin, Berlin, Germany
- BIH Center for Regenerative Therapies, Berlin Institute of Health at Charité—Universitätsmedizin Berlin, Berlin, Germany
| | - Mario Thiele
- Julius Wolff Institute, Berlin Institute of Health at Charité—Universitätsmedizin Berlin, Berlin, Germany
| | - Georg N. Duda
- Julius Wolff Institute, Berlin Institute of Health at Charité—Universitätsmedizin Berlin, Berlin, Germany
- Berlin-Brandenburg School for Regenerative Therapies, Charité—Universitätsmedizin Berlin, Berlin, Germany
- BIH Center for Regenerative Therapies, Berlin Institute of Health at Charité—Universitätsmedizin Berlin, Berlin, Germany
| | - Ansgar Petersen
- Julius Wolff Institute, Berlin Institute of Health at Charité—Universitätsmedizin Berlin, Berlin, Germany
- Berlin-Brandenburg School for Regenerative Therapies, Charité—Universitätsmedizin Berlin, Berlin, Germany
- BIH Center for Regenerative Therapies, Berlin Institute of Health at Charité—Universitätsmedizin Berlin, Berlin, Germany
- *Correspondence: Ansgar Petersen,
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24
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Liu W, Padhi A, Zhang X, Narendran J, Anastasio MA, Nain AS, Irudayaraj J. Dynamic Heterochromatin States in Anisotropic Nuclei of Cells on Aligned Nanofibers. ACS NANO 2022; 16:10754-10767. [PMID: 35803582 PMCID: PMC9332347 DOI: 10.1021/acsnano.2c02660] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The cancer cell nucleus deforms as it invades the interstitial spaces in tissues and the tumor microenvironment. While alteration of the chromatin structure in a deformed nucleus is expected and documented, the chromatin structure in the nuclei of cells on aligned matrices has not been elucidated. In this work we elucidate the spatiotemporal organization of heterochromatin in the elongated nuclei of cells on aligned nanofibers with stimulated emission depletion nanoscopy and fluorescence correlation spectroscopy. We show that the anisotropy of nuclei is sufficient to drive H3K9me3-heterochromatin alterations, with enhanced H3K9me3 nanocluster compaction and aggregation states that otherwise are indistinguishable from diffraction-limited microscopy. We interrogated the higher-order heterochromatin structures within major chromatin compartments in anisotropic nuclei and discovered a wider spatial dispersion of nanodomain clusters in the nucleoplasm and condensed larger nanoclusters near the periphery and pericentromeric heterochromatin. Upon examining the spatiotemporal dynamics of heterochromatin in anisotropic nuclei, we observed reduced mobility of the constitutive heterochromatin mark H3K9me3 and the associated heterochromatin protein 1 (HP1α) at the nucleoplasm and periphery regions, correlating with increased viscosity and changes in gene expression. Since heterochromatin remodeling is crucial to genome integrity, our results reveal an unconventional H3K9me3 heterochromatin distribution, providing cues to an altered chromatin state due to perturbations of the nuclei in aligned fiber configurations.
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Affiliation(s)
- Wenjie Liu
- Department
of Bioengineering, University of Illinois
at Urbana−Champaign, 1102 Everitt Lab, 1406 W. Green Street, Urbana, Illinois 61801, United States
- Biomedical
Research Center, Mills Breast Cancer Institute, Cancer Center at Illinois,
Micro and Nanotechnology Laboratory, Beckman
Institute, Carl Woese Institute for Genomic Biology, Urbana, Illinois 61801, United States
| | - Abinash Padhi
- Department
of Mechanical Engineering, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Xiaohui Zhang
- Department
of Bioengineering, University of Illinois
at Urbana−Champaign, 1102 Everitt Lab, 1406 W. Green Street, Urbana, Illinois 61801, United States
| | - Jairaj Narendran
- Department
of Bioengineering, University of Illinois
at Urbana−Champaign, 1102 Everitt Lab, 1406 W. Green Street, Urbana, Illinois 61801, United States
| | - Mark A. Anastasio
- Department
of Bioengineering, University of Illinois
at Urbana−Champaign, 1102 Everitt Lab, 1406 W. Green Street, Urbana, Illinois 61801, United States
| | - Amrinder S. Nain
- Department
of Mechanical Engineering, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Joseph Irudayaraj
- Department
of Bioengineering, University of Illinois
at Urbana−Champaign, 1102 Everitt Lab, 1406 W. Green Street, Urbana, Illinois 61801, United States
- Biomedical
Research Center, Mills Breast Cancer Institute, Cancer Center at Illinois,
Micro and Nanotechnology Laboratory, Beckman
Institute, Carl Woese Institute for Genomic Biology, Urbana, Illinois 61801, United States
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25
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Zheng X, Zhao K, Jackson T, Lowengrub J. Tumor growth towards lower extracellular matrix conductivity regions under Darcy's Law and steady morphology. J Math Biol 2022; 85:5. [PMID: 35796898 PMCID: PMC9968407 DOI: 10.1007/s00285-022-01759-7] [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: 06/07/2021] [Revised: 02/27/2022] [Accepted: 04/16/2022] [Indexed: 10/17/2022]
Abstract
We study a classic Darcy's law model for tumor cell motion with inhomogeneous and isotropic conductivity. The tumor cells are assumed to be a constant density fluid flowing through porous extracellular matrix (ECM). The ECM is assumed to be rigid and motionless with constant porosity. One and two dimensional simulations show that the tumor mass grows from high to low conductivity regions when the tumor morphology is steady. In the one-dimensional case, we proved that when the tumor size is steady, the tumor grows towards lower conductivity regions. We conclude that this phenomenon is produced by the coupling of a special inward flow pattern in the steady tumor and Darcy's law which gives faster flow speed in higher conductivity regions.
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Affiliation(s)
- Xiaoming Zheng
- Department of Mathematics, Central Michigan University, Mount Pleasant, MI, 48858, USA.
| | - Kun Zhao
- Department of Mathematics, Tulane University, New Orleans, LA 70118, USA
| | - Trachette Jackson
- Department of Mathematics, University of Michigan, Ann Arbor, MI 48109, USA
| | - John Lowengrub
- Department of Mathematics, University of California, Irvine, CA 92697, USA
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26
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Theeyancheri L, Chaki S, Bhattacharjee T, Chakrabarti R. Migration of active rings in porous media. Phys Rev E 2022; 106:014504. [PMID: 35974648 DOI: 10.1103/physreve.106.014504] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 07/07/2022] [Indexed: 06/15/2023]
Abstract
Inspired by how the shape deformations in active organisms help them to migrate through disordered porous environments, we simulate active ring polymers in two-dimensional random porous media. Flexible and inextensible active ring polymers navigate smoothly through the disordered media. In contrast, semiflexible rings undergo transient trapping inside the pore space; the degree of trapping is inversely correlated with the increase in activity. We discover that flexible rings swell while inextensible and semiflexible rings monotonically shrink upon increasing the activity. Together, our findings identify the optimal migration of active ring polymers through porous media.
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Affiliation(s)
- Ligesh Theeyancheri
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai 400076, India
| | - Subhasish Chaki
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai 400076, India
- Department of Materials Science and Engineering, University of Illinois Urbana-Champaign, Urbana, Illinois 61801, USA
| | - Tapomoy Bhattacharjee
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bangalore 560065, India
| | - Rajarshi Chakrabarti
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai 400076, India
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27
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Zhang J, Liu W, Sui P, Nan J, Wei B, Xu C, He L, Zheng M, Wang H. Fabrication of a stepwise degradable hybrid bioscaffold based on the natural and partially denatured collagen. Int J Biol Macromol 2022; 213:416-426. [PMID: 35661667 DOI: 10.1016/j.ijbiomac.2022.05.184] [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: 04/26/2022] [Revised: 05/24/2022] [Accepted: 05/29/2022] [Indexed: 11/05/2022]
Abstract
As a major component of extracellular matrixes (ECMs), collagen is an attractive biomaterial to fabricate porous scaffold for tissue engineering due to their similarity to the in vivo static microenvironment. However, the collagen-based porous scaffolds were difficult to mimic the dynamically remolded porous structure of ECM during the cell proliferation and tissue development, and always have poor mechanical property and not easy to handle. Here, natural collagen and partially denatured collagen was used to prepare the stepwise degradable hybrid bioscaffold with suitable mechanical property and dynamically remolded inner porous structure, which is desirable for the applications of tissue engineering. The collagen-based microporous scaffold was first prepared and used as physical support, then, the mechanical strength of which was reinforced by the import of the partially denatured collagen to give the hybrid bioscaffold. The fabrication conditions of the hybrid scaffolds were optimized, of which the thermal stability, mechanical property, and swelling property was explored. The stepwise enzymatic degradation process and the corresponding porous structure variation of the hybrid scaffold was confirmed by SEM and cell culture assays.
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Affiliation(s)
- Juntao Zhang
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, Hubei, China
| | - Wei Liu
- School of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, Hubei, 430023, China
| | - Peishan Sui
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, Hubei, China
| | - Jie Nan
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, Hubei, China
| | - Benmei Wei
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, Hubei, China
| | - Chengzhi Xu
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, Hubei, China
| | - Lang He
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, Hubei, China
| | - Mingming Zheng
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, Hubei, China; Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory of Oilseeds Processing, Ministry of Agriculture, Hubei Key Laboratory of Lipid Chemistry and Nutrition, No. 2 Xudong second Road, Wuhan, Hubei 430062, China
| | - Haibo Wang
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, Hubei, China.
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28
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Geiger F, Schnitzler LG, Brugger MS, Westerhausen C, Engelke H. Directed invasion of cancer cell spheroids inside 3D collagen matrices oriented by microfluidic flow in experiment and simulation. PLoS One 2022; 17:e0264571. [PMID: 35231060 PMCID: PMC8887745 DOI: 10.1371/journal.pone.0264571] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 02/14/2022] [Indexed: 01/07/2023] Open
Abstract
Invasion is strongly influenced by the mechanical properties of the extracellular matrix. Here, we use microfluidics to align fibers of a collagen matrix and study the influence of fiber orientation on invasion from a cancer cell spheroid. The microfluidic setup allows for highly oriented collagen fibers of tangential and radial orientation with respect to the spheroid, which can be described by finite element simulations. In invasion experiments, we observe a strong bias of invasion towards radial as compared to tangential fiber orientation. Simulations of the invasive behavior with a Brownian diffusion model suggest complete blockage of migration perpendicularly to fibers allowing for migration exclusively along fibers. This slows invasion toward areas with tangentially oriented fibers down, but does not prevent it.
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Affiliation(s)
- Florian Geiger
- Department of Chemistry, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Lukas G. Schnitzler
- Experimental Physics I, Institute of Physics, University of Augsburg, Augsburg, Germany
| | - Manuel S. Brugger
- Experimental Physics I, Institute of Physics, University of Augsburg, Augsburg, Germany
- Stiftung der Deutschen Wirtschaft (sdw) gGmbH, Berlin, Germany
| | - Christoph Westerhausen
- Experimental Physics I, Institute of Physics, University of Augsburg, Augsburg, Germany
- Physiology, Institute of Theoretical Medicine, University of Augsburg, Augsburg, Germany
- Center for NanoScience (CeNS), Munich, Germany
- * E-mail: (CW); (HE)
| | - Hanna Engelke
- Department of Chemistry, Ludwig-Maximilians-Universität München, Munich, Germany
- Center for NanoScience (CeNS), Munich, Germany
- Institute of Pharmaceutical Sciences, Department of Pharmaceutical Chemistry, University of Graz, Graz, Austria
- * E-mail: (CW); (HE)
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29
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Liu Q, Wu M, Karvar M, Aoki S, Endo Y, Hamaguchi R, Ma C, Matar DY, Orgill DP, Panayi AC. The Three-Dimensional Structure of Porcine Bladder Scaffolds Alters the Biology of Murine Diabetic Wound Healing. Adv Skin Wound Care 2022; 35:1-10. [PMID: 35311770 DOI: 10.1097/01.asw.0000822608.47578.d9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To determine if the various three-dimensional structures of bioscaffolds affect wound healing by investigating the efficacy of different porcine-derived urinary bladder matrix (UBM) structures in treating murine diabetic wound healing. METHODS The authors studied three different UBM structures: particulate (pUBM), one-layer freeze-dried sheet (fdUBM), and three-layer laminated sheet (lmUBM). Scanning electron microscopy images of the structures were used to calculate a wound-exposed surface-area-to-volume ratio. A 1.0 × 1.0-cm full-thickness dorsal wound was excised on 90 db/db mice. Mice were either untreated (blank, n = 15), treated with one UBM structure (pUBM, n = 15; fdUBM, n = 15; lmUBM, n = 15), or treated with a combination of either the one- or three-layer sheet over the particulate matrix (fdUBM + pUBM, n = 15; lmUBM + pUBM, n = 15). The authors obtained macroscopic images of the wounds and harvested tissues for analyses at multiple time points. RESULTS The surface area available to interact with the wound was highest in the pUBM group and lowest in the lmUBM group. Greater wound bed thickness was noted in the fdUBM, fdUBM + pUBM, and lmUBM groups compared with the blank group. Cellular proliferation was significantly higher in the fdUBM and fdUBM + pUBM groups than in the blank group. The lmUBM + pUBM group had the highest collagen deposition. The pUBM group induced significantly higher leukocyte infiltration compared with the lmUBM, lmUBM + pUBM, and blank groups. Microvessel density was highest in the fdUBM + pUBM group. Significant differences in the wound closure rate were noted between the blank group and the fdUBM and fdUBM + pUBM groups. CONCLUSIONS Assessment of the three UBM bioscaffold structures highlighted differences in the wound-exposed surface area. Variations in wound healing effects, including collagen deposition, cellular proliferation, and angiogenesis, were identified, with combinations of the structures displaying synergistic effects. This study serves as a platform for future scaffold design and offers promising evidence of the benefits of combining various structures of scaffolds.
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Affiliation(s)
- Qinxin Liu
- Qinxin Liu, MD, is Research Fellow, Tissue Engineering and Wound Healing Laboratory, Division of Plastic Surgery, Brigham and Women's Hospital, Harvard Medical School, and Trauma Surgeon, Department of Traumatic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, China. Mengfan Wu, MD, PhD, is Postdoctoral Research Fellow, Tissue Engineering and Wound Healing Laboratory, Division of Plastic Surgery, Brigham and Women's Hospital, Harvard Medical School and Plastic Surgeon, Department of Plastic Surgery, Peking University, Shenzhen Hospital, China. Mehran Karvar, MD, is Postdoctoral Research Fellow, Department of Surgery, Brigham and Women's Hospital. Shimpo Aoki, MD, PhD, is Postdoctoral Research Fellow, Brigham and Women's Hospital, and Hand Surgeon, Minamitama Hospital, Japan. Yori Endo, MD, is Postdoctoral Research Fellow, Division of Plastic and Reconstructive Surgery, Department of Surgery, Brigham and Women's Hospital, Harvard Medical School. Ryoko Hamaguchi, MD, is Resident, Harvard General Brigham Plastic Surgery program. Chenhao Ma, MD, PhD, MSPH, is Postdoctoral Research Fellow, Division of Plastic Surgery, Brigham and Women's Hospital, Harvard Medical School, and Plastic Surgeon, Plastic Surgery Hospital, Chinese Academy of Medical Science. Dany Y. Matar is Undergraduate Student, Washington University, St Louis, Missouri. Dennis P. Orgill, MD, PhD, is Director and Plastic Surgeon, Wound Healing and Tissue Engineering Laboratory, Brigham and Women's Hospital, and Professor of Surgery, Harvard Medical School. Adriana C. Panayi, MD, is Principal Investigator, Brigham and Women's Hospital and Instructor, Harvard Medical School
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30
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Bashiri Z, Zahiri M, Allahyari H, Esmaeilzade B. Proliferation of human spermatogonial stem cells on optimized PCL/Gelatin nanofibrous scaffolds. Andrologia 2022; 54:e14380. [PMID: 35083770 DOI: 10.1111/and.14380] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 12/22/2021] [Accepted: 01/11/2022] [Indexed: 12/26/2022] Open
Abstract
Improvement of culture system and increasing the proliferation of spermatogonia stem cells under in vitro condition are the essential treatment options for infertility before autologous transplantation. Therefore, the present study aimed to evaluate the proliferation of human spermatogonia stem cells on the electrospun polycaprolactone/gelatin nanocomposite. Therefore, for this purpose, nanofiber porous scaffolds were prepared using the electrospinning method and their structures were then confirmed by SEM. After performing swelling, biodegradability and cell adhesion tests, human spermatogonia stem cells were cultured on scaffolds. In addition, both cell viability and proliferation were assessed using immunocytochemistry, flow cytometry and real-time PCR techniques in culturing during a 3-week period. SEM images indicated the presence of fibres with suitable diameters and arrangement as well as a sufficient porosity in nanocomposite scaffolds, showing good biocompatibility and biodegradability. The results show a significant increase in the number of spermatogonia stem cells in the cultured group on scaffold compared with the control group (p ≤ 0.05). As well, the results show that the expressions of integrin ɑ6 and β1 and Plzf genes estimated using real-time PCR in nanofiber scaffolds were significantly higher than those of the control group (p ≤ 0.05). However, the expression of c-Kit gene in the 3D group showed a significant decrease compared with the 2D group. Flow cytometry analysis also showed that the number of Plzf-positive cells was significantly higher in nanofiber porous scaffolds compared with the control group (p ≤ 0.05). Additionally, immunocytochemistry findings confirmed the presence of human spermatogonia stem cell colonies. In general, it seems that the designed nanocomposite scaffold could provide a suitable capacity for self-renewal of human spermatogonia stem cells, which can have a good application potential in research and reconstructive medicine related to the field of male infertility.
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Affiliation(s)
- Zahra Bashiri
- Stem Cell and Regenerative Medicine Research Center, Iran University of Medical Sciences, Tehran, Iran.,Department of Anatomical Sciences, School of Medical Sciences, Iran University of Medical Sciences, Tehran, Iran
| | - Maria Zahiri
- The Persian Gulf Marine Biotechnology Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr, Iran.,Department of Anatomical Sciences, School of Medical Sciences, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Hamed Allahyari
- Department of Anatomical Sciences, School of Medical Sciences, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Banafshe Esmaeilzade
- Department of Anatomical Sciences, School of Medical Sciences, Bushehr University of Medical Sciences, Bushehr, Iran
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31
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Moon HR, Saha S, Mugler A, Han B. Signal processing capacity of the cellular sensory machinery regulates the accuracy of chemotaxis under complex cues. iScience 2021; 24:103242. [PMID: 34746705 PMCID: PMC8554535 DOI: 10.1016/j.isci.2021.103242] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 09/16/2021] [Accepted: 10/05/2021] [Indexed: 10/29/2022] Open
Abstract
Chemotaxis is ubiquitous in many biological processes, but it still remains elusive how cells sense and decipher multiple chemical cues. In this study, we postulate a hypothesis that the chemotactic performance of cells under complex cues is regulated by the signal processing capacity of the cellular sensory machinery. The underlying rationale is that cells in vivo should be able to sense and process multiple chemical cues, whose magnitude and compositions are entangled, to determine their migration direction. We experimentally show that the combination of transforming growth factor-β and epidermal growth factor suppresses the chemotactic performance of cancer cells using independent receptors to sense the two cues. Based on this observation, we develop a biophysical framework suggesting that the antagonism is caused by the saturation of the signal processing capacity but not by the mutual repression. Our framework suggests the significance of the signal processing capacity in the cellular sensory machinery.
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Affiliation(s)
- Hye-ran Moon
- School of Mechanical Engineering, Purdue University, 585 Purdue Mall, West Lafayette, IN 47907, USA
| | - Soutick Saha
- Department of Physics and Astronomy, Purdue University, West Lafayette, IN 47907, USA
| | - Andrew Mugler
- Department of Physics and Astronomy, Purdue University, West Lafayette, IN 47907, USA
- Purdue Center for Cancer Research, Purdue University, West Lafayette, IN 47907, USA
- Department of Physics and Astronomy, University of Pittsburgh, 3941 O'Hara St, Pittsburgh, PA 15260, USA
| | - Bumsoo Han
- School of Mechanical Engineering, Purdue University, 585 Purdue Mall, West Lafayette, IN 47907, USA
- Purdue Center for Cancer Research, Purdue University, West Lafayette, IN 47907, USA
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN 47907, USA
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32
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Woodley JP, Lambert DW, Asencio IO. Understanding Fibroblast Behavior in 3D Biomaterials. TISSUE ENGINEERING PART B-REVIEWS 2021; 28:569-578. [PMID: 34102862 DOI: 10.1089/ten.teb.2021.0010] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Traditional monolayer culture fails to fully recapitulate the in vivo environment of connective tissue cells such as the fibroblast. When cultured on stiff two-dimensional (2D) plastic, fibroblasts become highly proliferative forming broad lamellipodia and stress fibers. Conversely, in different three-dimensional (3D) culture systems, fibroblasts have displayed a diverse array of features; from an "activated" phenotype like that observed in 2D cultures and by myofibroblasts, to a quiescent state that likely better represents in vivo fibroblasts at rest. Today, a plethora of microfabrication techniques have made 3D culture commonplace, for both tissue engineering purposes and in the study of basic biological interactions. However, establishing the in vivo mimetic credentials of different biomimetic materials is not always straightforward, particularly in the context of fibroblast responses. Fibroblast behavior is governed by the complex interplay of biological features such as integrin binding sites, material mechanical properties that influence cellular mechanotransduction, and microarchitectural features like pore and fiber size, as well as chemical cues. Furthermore, fibroblasts are a heterogeneous group of cells with specific phenotypic traits dependent on their tissue of origin. These features have made understanding the influence of biomaterials on fibroblast behavior a challenging task. In this study, we present a review of the strategies used to investigate fibroblast behavior with a focus on the material properties that influence fibroblast activation, a process that becomes pathological in fibrotic diseases and certain cancers.
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Affiliation(s)
- Joe P Woodley
- Bioengineering and Health Technologies Group, The School of Clinical Dentistry, University of Sheffield, Sheffield, United Kingdom
| | - Daniel W Lambert
- Integrated Bioscience Group, The School of Clinical Dentistry, University of Sheffield, Sheffield, United Kingdom
| | - Ilida Ortega Asencio
- Bioengineering and Health Technologies Group, The School of Clinical Dentistry, University of Sheffield, Sheffield, United Kingdom
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Dewey MJ, Kolliopoulos V, Ngo MT, Harley BAC. Glycosaminoglycan content of a mineralized collagen scaffold promotes mesenchymal stem cell secretion of factors to modulate angiogenesis and monocyte differentiation. MATERIALIA 2021; 18:101149. [PMID: 34368658 PMCID: PMC8336934 DOI: 10.1016/j.mtla.2021.101149] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Effective design of biomaterials to aid regenerative repair of craniomaxillofacial (CMF) bone defects requires approaches that modulate the complex interplay between exogenously added progenitor cells and cells in the wound microenvironment, such as osteoblasts, osteoclasts, endothelial cells, and immune cells. We are exploring the role of the glycosaminoglycan (GAG) content in a class of mineralized collagen scaffolds recently shown to promote osteogenesis and healing of craniofacial bone defects. We previously showed that incorporating chondroitin-6-sulfate or heparin improved mineral deposition by seeded human mesenchymal stem cells (hMSCs). Here, we examine the effect of varying scaffold GAG content on hMSC behavior, and their ability to modulate osteoclastogenesis, vasculogenesis, and the immune response. We report the role of hMSC-conditioned media produced in scaffolds containing chondroitin-6-sulfate (CS6), chondroitin-4-sulfate (CS4), or heparin (Heparin) GAGs on endothelial tube formation and monocyte differentiation. Notably, endogenous production by hMSCs within Heparin scaffolds most significantly inhibits osteoclastogenesis via secreted osteoprotegerin (OPG), while the secretome generated by CS6 scaffolds reduced pro-inflammatory immune response and increased endothelial tube formation. All conditioned media down-regulated many pro- and anti-inflammatory cytokines, such as IL6, IL-1β, and CCL18 and CCL17 respectively. Together, these findings demonstrate that modifying mineralized collagen scaffold GAG content can both directly (hMSC activity) and indirectly (production of secreted factors) influence overall osteogenic potential and mineral biosynthesis as well as angiogenic potential and monocyte differentiation towards osteoclastic and macrophage lineages. Scaffold GAG content is therefore a powerful stimulus to modulate reciprocal signaling between multiple cell populations within the bone healing microenvironment.
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Affiliation(s)
- Marley J Dewey
- Dept. of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801
| | - Vasiliki Kolliopoulos
- Dept. of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801
| | - Mai T Ngo
- Dept. of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801
| | - Brendan A C Harley
- Dept. of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801
- Dept. of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801
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The interaction between human rotator cuff tendon and subacromial bursal tissue in co-culture. J Shoulder Elbow Surg 2021; 30:1494-1502. [PMID: 33197595 DOI: 10.1016/j.jse.2020.09.025] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 09/07/2020] [Accepted: 09/21/2020] [Indexed: 02/01/2023]
Abstract
BACKGROUND The role of subacromial bursa in rotator cuff pathology is unclear. Along with recognized inflammatory potential, current data demonstrate the presence of mesenchymal stem cells and potential regenerative properties of the bursa. The purpose of this study was to (1) approximate an in vitro co-culture model that represents interaction between torn rotator cuff tendon and subacromial bursa, (2) quantify the cellular activity of tendon and bursa and their interactions, (3) use this model to induce a state of inflammation present with rotator cuff pathology. METHODS In part 1, tendon and bursa samples were obtained from 6 patients undergoing rotator cuff repair. Tendon and bursa were cultured alone and together in co-culture wells for 21 days. Markers specific for tenocyte gene expression (tenascin C, decorin, etc) were measured in both tendon and bursa alone and compared to co-culture models. In part 2 of the study, an inflammatory state was induced with interleukin-1β treatment, and markers of inflammation were measured via protein assay at 0 and 21 days in samples from 7 additional patients. RESULTS There was an increase in tendon and bursa markers in nearly all groups as evidenced by increased gene expression of known tendon and bursa markers. There was a significant increase in gene expression when torn tendon was co-cultured with bursa compared with culturing alone. Additionally, a state of inflammation was induced as evidenced by increased markers of inflammation, inflammatory protein concentration, and inflammatory cells and disruption of histologic morphology. CONCLUSION There is a clear interaction between rotator cuff tendon and the milieu produced by the subacromial bursa in this in vitro co-culture system that is significantly different when compared to an isolated culture of tendon and bursa. This system was successfully used to induce a state of inflammation that may represent in vivo inflammation. This in vitro model of rotator cuff pathology can aid investigators in testing effects of agents proposed to improve rotator cuff healing. This can lead to further knowledge regarding effective treatment options.
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Huerta-López C, Alegre-Cebollada J. Protein Hydrogels: The Swiss Army Knife for Enhanced Mechanical and Bioactive Properties of Biomaterials. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1656. [PMID: 34202469 PMCID: PMC8307158 DOI: 10.3390/nano11071656] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/17/2021] [Accepted: 06/18/2021] [Indexed: 12/31/2022]
Abstract
Biomaterials are dynamic tools with many applications: from the primitive use of bone and wood in the replacement of lost limbs and body parts, to the refined involvement of smart and responsive biomaterials in modern medicine and biomedical sciences. Hydrogels constitute a subtype of biomaterials built from water-swollen polymer networks. Their large water content and soft mechanical properties are highly similar to most biological tissues, making them ideal for tissue engineering and biomedical applications. The mechanical properties of hydrogels and their modulation have attracted a lot of attention from the field of mechanobiology. Protein-based hydrogels are becoming increasingly attractive due to their endless design options and array of functionalities, as well as their responsiveness to stimuli. Furthermore, just like the extracellular matrix, they are inherently viscoelastic in part due to mechanical unfolding/refolding transitions of folded protein domains. This review summarizes different natural and engineered protein hydrogels focusing on different strategies followed to modulate their mechanical properties. Applications of mechanically tunable protein-based hydrogels in drug delivery, tissue engineering and mechanobiology are discussed.
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Affiliation(s)
- Carla Huerta-López
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), 28029 Madrid, Spain
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36
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Marew T, Birhanu G. Three dimensional printed nanostructure biomaterials for bone tissue engineering. Regen Ther 2021; 18:102-111. [PMID: 34141834 PMCID: PMC8178073 DOI: 10.1016/j.reth.2021.05.001] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 03/29/2021] [Accepted: 05/04/2021] [Indexed: 12/13/2022] Open
Abstract
The suffering from organ dysfunction due to damaged or diseased tissue/bone has been globally on the rise. Current treatment strategies for non-union bone defects include: the use of autografts, allografts, synthetic grafts and free vascularized fibular grafts. Bone tissue engineering has emerged as an alternative for fracture repair to satisfy the current unmet need of bone grafts and to alleviate the problems associated with autografts and allografts. The technology offers the possibility to induce new functional bone regeneration using synergistic combination of functional biomaterials (scaffolds), cells, and growth factors. Bone scaffolds are typically made of porous biodegradable materials that provide the mechanical support during repair and regeneration of damaged or diseased bone. Significant progress has been made towards scaffold materials for structural support, desired osteogenesis and angiogenesis abilities. Thanks for innovative scaffolds fabrication technologies, bioresorbable scaffolds with controlled porosity and tailored properties are possible today. Despite the presence of different bone scaffold fabrication methods, pore size, shape and interconnectivity have not yet been fully controlled in most of the methods. Moreover, scaffolds with tailored porosity for specific defects are still difficult to manufacture. Nevertheless, such scaffolds can be designed and fabricated using three dimensional (3D) printing approaches. 3D printing technology, as an advanced tissue scaffold fabrication method, offers the opportunity to produce complex geometries with distinct advantages. The technology has been used for the production of various types of bodily constructs such as blood vessels, vascular networks, bones, cartilages, exoskeletons, eyeglasses, cell cultures, tissues, organs and novel drug delivery devices. This review focuses on 3D printed scaffolds and their application in bone repair and regeneration. In addition, different classes of biomaterials commonly employed for the fabrication of 3D nano scaffolds for bone tissue engineering application so far are briefly discussed.
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Affiliation(s)
- Tesfa Marew
- Department of Pharmaceutics & Social Pharmacy, School of Pharmacy, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
| | - Gebremariam Birhanu
- Department of Pharmaceutics & Social Pharmacy, School of Pharmacy, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
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Tortorici M, Petersen A, Ehrhart K, Duda GN, Checa S. Scaffold-Dependent Mechanical and Architectural Cues Guide Osteochondral Defect Healing in silico. Front Bioeng Biotechnol 2021; 9:642217. [PMID: 33659244 PMCID: PMC7917217 DOI: 10.3389/fbioe.2021.642217] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 01/22/2021] [Indexed: 11/13/2022] Open
Abstract
Osteochondral defects in joints require surgical intervention to relieve pain and restore function. However, no current treatment enables a complete reconstitution of the articular surface. It is known that both mechanical and biological factors play a key role on osteochondral defect healing, however the underlying principles and how they can be used in the design of treatment strategies remain largely unknown. To unravel the underlying principles of mechanobiology in osteochondral defect healing, i.e., how mechanical stimuli can guide biological tissue formation, we employed a computational approach investigating the scaffold-associated mechanical and architectural properties that would enable a guided defect healing. A previous computer model of the knee joint was further developed to simulate healing of an empty osteochondral defect. Then, scaffolds were implanted in the defect and their architectures and material properties were systematically varied to identify their relevance in osteochondral defect healing. Scaffold mechanical and architectural properties were capable of influencing osteochondral defect healing. Specifically, scaffold material elastic modulus values in the range of cancellous bone (low GPa range) and a scaffold architecture that provided stability, i.e., resistance against displacement, in both the main loading direction and perpendicular to it supported the repair process. The here presented model, despite its simplifications, is regarded as a powerful tool to screen for promising properties of novel scaffold candidates fostering osteochondral defect regeneration prior to their implementation in vivo.
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Affiliation(s)
- Martina Tortorici
- Julius Wolff Institute, Charité Universitaetsmedizin Berlin, Berlin, Germany.,Berlin-Branderburg School for Regenerative Therapies, Charité Universitaetsmedizin Berlin, Berlin, Germany
| | - Ansgar Petersen
- Julius Wolff Institute, Charité Universitaetsmedizin Berlin, Berlin, Germany.,Berlin Institute of Health Center for Regenerative Therapies, Charité Universitaetsmedizin Berlin, Berlin, Germany
| | - Klara Ehrhart
- Julius Wolff Institute, Charité Universitaetsmedizin Berlin, Berlin, Germany.,Continuum Mechanics and Material Theory, Faculty V of Mechanical Engineering and Transport Systems, Institute of Mechanics, Technische Universtitaet Berlin, Berlin, Germany
| | - Georg N Duda
- Julius Wolff Institute, Charité Universitaetsmedizin Berlin, Berlin, Germany.,Berlin-Branderburg School for Regenerative Therapies, Charité Universitaetsmedizin Berlin, Berlin, Germany.,Berlin Institute of Health Center for Regenerative Therapies, Charité Universitaetsmedizin Berlin, Berlin, Germany
| | - Sara Checa
- Julius Wolff Institute, Charité Universitaetsmedizin Berlin, Berlin, Germany.,Berlin-Branderburg School for Regenerative Therapies, Charité Universitaetsmedizin Berlin, Berlin, Germany
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Liu J, Huang R, Li G, Kaplan DL, Zheng Z, Wang X. Generation of Nano-pores in Silk Fibroin Films Using Silk Nanoparticles for Full-Thickness Wound Healing. Biomacromolecules 2021; 22:546-556. [PMID: 33449619 DOI: 10.1021/acs.biomac.0c01411] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Silk fibroin films are used in tissue engineering due to their biocompatibility, optical clarity, and slow biodegradability. However, the relatively smooth surface and low permeability of these systems may limit some applications; thus, here, a method was developed to generate nano-pores in methanol or ethanol-treated silk fibroin films. The first step was to induce the formation of nanoparticles (50-300 nm diam.) in silk fibroin solutions by autoclaving. After drying in air, the films formed were treated to induce silk β-sheet structures, which condense the bulk silk phase and nanoparticles and phase separation and enlarge the space of bulk silk phase and nanoparticles. These films were then extracted with water to allow the condensed nanoparticles to escape, leaving homogeneous nano-pores (50-300 nm) in the silk fibroin matrix. The introduction of nano-pores resulted in enhanced permeability and minimized loss of the mechanical properties of the nano-porous silk fibroin films (NSFs) when compared to the un-autoclaving-treated silk fibroin films. NSFs promoted cell (human fibroblasts) proliferation and oxygen/nutrition perfusion and significantly enhanced the complete skin-thickness wound healing in a rat model, suggesting the potential use in tissue regeneration or as wound dressing biomaterials for clinical applications.
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Affiliation(s)
- Jian Liu
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
| | - Ran Huang
- Zhejiang Cathaya International Co., Ltd, Hangzhou 310004, China
| | - Gang Li
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, Massachusetts 02155, United States
| | - Zhaozhu Zheng
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
| | - Xiaoqin Wang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
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Rashki S, Asgarpour K, Tarrahimofrad H, Hashemipour M, Ebrahimi MS, Fathizadeh H, Khorshidi A, Khan H, Marzhoseyni Z, Salavati-Niasari M, Mirzaei H. Chitosan-based nanoparticles against bacterial infections. Carbohydr Polym 2021; 251:117108. [DOI: 10.1016/j.carbpol.2020.117108] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Revised: 08/23/2020] [Accepted: 09/13/2020] [Indexed: 12/17/2022]
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40
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Majid QA, Fricker ATR, Gregory DA, Davidenko N, Hernandez Cruz O, Jabbour RJ, Owen TJ, Basnett P, Lukasiewicz B, Stevens M, Best S, Cameron R, Sinha S, Harding SE, Roy I. Natural Biomaterials for Cardiac Tissue Engineering: A Highly Biocompatible Solution. Front Cardiovasc Med 2020; 7:554597. [PMID: 33195451 PMCID: PMC7644890 DOI: 10.3389/fcvm.2020.554597] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 09/10/2020] [Indexed: 02/06/2023] Open
Abstract
Cardiovascular diseases (CVD) constitute a major fraction of the current major global diseases and lead to about 30% of the deaths, i.e., 17.9 million deaths per year. CVD include coronary artery disease (CAD), myocardial infarction (MI), arrhythmias, heart failure, heart valve diseases, congenital heart disease, and cardiomyopathy. Cardiac Tissue Engineering (CTE) aims to address these conditions, the overall goal being the efficient regeneration of diseased cardiac tissue using an ideal combination of biomaterials and cells. Various cells have thus far been utilized in pre-clinical studies for CTE. These include adult stem cell populations (mesenchymal stem cells) and pluripotent stem cells (including autologous human induced pluripotent stem cells or allogenic human embryonic stem cells) with the latter undergoing differentiation to form functional cardiac cells. The ideal biomaterial for cardiac tissue engineering needs to have suitable material properties with the ability to support efficient attachment, growth, and differentiation of the cardiac cells, leading to the formation of functional cardiac tissue. In this review, we have focused on the use of biomaterials of natural origin for CTE. Natural biomaterials are generally known to be highly biocompatible and in addition are sustainable in nature. We have focused on those that have been widely explored in CTE and describe the original work and the current state of art. These include fibrinogen (in the context of Engineered Heart Tissue, EHT), collagen, alginate, silk, and Polyhydroxyalkanoates (PHAs). Amongst these, fibrinogen, collagen, alginate, and silk are isolated from natural sources whereas PHAs are produced via bacterial fermentation. Overall, these biomaterials have proven to be highly promising, displaying robust biocompatibility and, when combined with cells, an ability to enhance post-MI cardiac function in pre-clinical models. As such, CTE has great potential for future clinical solutions and hence can lead to a considerable reduction in mortality rates due to CVD.
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Affiliation(s)
- Qasim A. Majid
- Faculty of Medicine, National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Annabelle T. R. Fricker
- Department of Material Science and Engineering, Faculty of Engineering, University of Sheffield, Sheffield, United Kingdom
| | - David A. Gregory
- Department of Material Science and Engineering, Faculty of Engineering, University of Sheffield, Sheffield, United Kingdom
| | - Natalia Davidenko
- Department of Materials Science and Metallurgy, Cambridge Centre for Medical Materials, University of Cambridge, Cambridge, United Kingdom
| | - Olivia Hernandez Cruz
- Faculty of Medicine, National Heart and Lung Institute, Imperial College London, London, United Kingdom
- Department of Bioengineering, Department of Materials, IBME, Faculty of Engineering, Imperial College London, United Kingdom
| | - Richard J. Jabbour
- Faculty of Medicine, National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Thomas J. Owen
- Faculty of Medicine, National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Pooja Basnett
- Applied Biotechnology Research Group, School of Life Sciences, College of Liberal Arts and Sciences, University of Westminster, London, United Kingdom
| | - Barbara Lukasiewicz
- Applied Biotechnology Research Group, School of Life Sciences, College of Liberal Arts and Sciences, University of Westminster, London, United Kingdom
| | - Molly Stevens
- Department of Bioengineering, Department of Materials, IBME, Faculty of Engineering, Imperial College London, United Kingdom
| | - Serena Best
- Department of Materials Science and Metallurgy, Cambridge Centre for Medical Materials, University of Cambridge, Cambridge, United Kingdom
| | - Ruth Cameron
- Department of Materials Science and Metallurgy, Cambridge Centre for Medical Materials, University of Cambridge, Cambridge, United Kingdom
| | - Sanjay Sinha
- Wellcome-MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge, United Kingdom
| | - Sian E. Harding
- Faculty of Medicine, National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Ipsita Roy
- Faculty of Medicine, National Heart and Lung Institute, Imperial College London, London, United Kingdom
- Department of Material Science and Engineering, Faculty of Engineering, University of Sheffield, Sheffield, United Kingdom
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Nieto D, Marchal Corrales JA, Jorge de Mora A, Moroni L. Fundamentals of light-cell-polymer interactions in photo-cross-linking based bioprinting. APL Bioeng 2020; 4:041502. [PMID: 33094212 PMCID: PMC7553782 DOI: 10.1063/5.0022693] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 09/21/2020] [Indexed: 02/06/2023] Open
Abstract
Biofabrication technologies that use light for polymerization of biomaterials have made
significant progress in the quality, resolution, and generation of precise complex tissue
structures. In recent years, the evolution of these technologies has been growing along
with the development of new photocurable resins and photoinitiators that are biocompatible
and biodegradable with bioactive properties. Such evolution has allowed the progress of a
large number of tissue engineering applications. Flexibility in the design, scale, and
resolution and wide applicability of technologies are strongly dependent on the
understanding of the biophysics involved in the biofabrication process. In particular,
understanding cell–light interactions is crucial when bioprinting using cell-laden
biomaterials. Here, we summarize some theoretical mechanisms, which condition cell
response during bioprinting using light based technologies. We take a brief look at the
light–biomaterial interaction for a better understanding of how linear effects
(refraction, reflection, absorption, emission, and scattering) and nonlinear effects
(two-photon absorption) influence the biofabricated tissue structures and identify the
different parameters essential for maintaining cell viability during and after
bioprinting.
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Affiliation(s)
| | | | - Alberto Jorge de Mora
- SERGAS (Galician Health Service) and IDIS (Health Research Institute of Santiago de Compostela (IDIS), Orthopaedic Department, Universidad de Santiago de Compostela, Santiago de Compostela 15782, Spain
| | - Lorenzo Moroni
- Complex Tissue Regeneration Department, MERLN Institute for Technology Inspired Regenerative Medicine, Universiteitssingel 40, 6229ER Maastricht, The Netherlands
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Huang J, Ratnayake J, Ramesh N, Dias GJ. Development and Characterization of a Biocomposite Material from Chitosan and New Zealand-Sourced Bovine-Derived Hydroxyapatite for Bone Regeneration. ACS OMEGA 2020; 5:16537-16546. [PMID: 32685818 PMCID: PMC7364611 DOI: 10.1021/acsomega.0c01168] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Accepted: 06/18/2020] [Indexed: 05/09/2023]
Abstract
A biocomposite scaffold was developed using chitosan (CS) and bovine-derived hydroxyapatite (BHA). The prepared CS-BHA biocomposite scaffold was characterized for its physiochemical and biological properties and compared against control BHA scaffolds to evaluate the effects of CS. Energy-dispersive X-ray analysis confirmed the elemental composition of the CS-BHA scaffold, which presented peaks for C and O from CS and Ca and P along with trace elements in the bovine bone such as Na, Mg, and Cl. Fourier transform infrared spectroscopy confirmed the presence of phosphate, hydroxyl, carbonate, and amide functional groups attributed to the CS and BHA present in the biocomposite scaffolds. The CS-BHA scaffolds demonstrated an interconnected porous structure with pore sizes ranging from 60 to 600 μm and a total porosity of ∼64-75%, as revealed by scanning electron microscopy and micro-CT analyses, respectively. Furthermore, thermogravimetric analysis revealed that the CS-BHA scaffold lost 70% of its weight when heated up to 1000 °C, which is characteristic of CS phase decomposition in the biocomposite. In vitro studies demonstrated that the CS-BHA scaffolds were biocompatible toward Saos-2 osteoblast-like cells, showing high cell viability and a significant increase in cell proliferation across the measured timepoints compared to the controls.
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Affiliation(s)
- Jeffrey Huang
- Department
of Anatomy, School of Biomedical Sciences, University of Otago, Dunedin 9016, New Zealand
| | - Jithendra Ratnayake
- Department
of Oral Sciences, Faculty of Dentistry, University of Otago, Dunedin 9016, New Zealand
| | - Niranjan Ramesh
- Department
of Anatomy, School of Biomedical Sciences, University of Otago, Dunedin 9016, New Zealand
| | - George J. Dias
- Department
of Anatomy, School of Biomedical Sciences, University of Otago, Dunedin 9016, New Zealand
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Fattahi A, Liverani L, Dittrich R, Hoffmann I, Boccaccini AR, Beckmann MW, Bleisinger N. Optimization of Porcine Ovarian Follicle Isolation Methods for Better Developmental Potential. Tissue Eng Part A 2020; 26:712-719. [PMID: 32598233 DOI: 10.1089/ten.tea.2020.0058] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
In the present study, we present a comparative analysis among the outputs of porcine follicle isolation using either mechanical technique alone or in combination with enzymes, proposing an optimized protocol useful for all further applications related to follicle in vitro growth and reproductive tissue engineering. The porcine follicles were isolated using mechanical technique alone (hand blender and scalpels) or in combination with collagenase or Liberase Dispase High (DH) at different doses applying different protocols. Finally, the number, morphology, and stage of isolated follicles were compared between the protocols. Moreover, the follicle viability (live/dead assay) and morphology (rhodamine phalloidin and 4',6-diamidino-2-phenylindole staining and scanning electron microscopy analysis) were evaluated after 10 days of culture. We found an optimum protocol for intact follicle isolation using the mechanical technique in combination with enzymes at a concentration of 0.5 mg/mL. However, the number of total isolated follicles and primordial follicles was significantly higher when collagenase was used compared to Liberase DH (p < 0.05), while Liberase DH could isolate a significantly higher percentage of preantral follicles. After 10 days of culture, the morphology and health status of follicles were statistically higher when Liberase DH was used in comparison with collagenase. Moreover, on the follicles extracted with Liberase DH, it was possible to observe theca cells covering part of the follicle surface. In conclusion, we demonstrated that the intact primary or secondary follicles could not be obtained using only mechanical methods, which led to the isolation of denuded oocytes and dramatically damaged follicles. We concluded that the collagenase-based follicle isolation could negatively affect the morphology and developmental potential of the follicles. Moreover, the incubation of ovarian cortex tissues with Liberase DH solution is an optimized protocol for porcine ovarian follicle isolation with developmental competence. Impact statement Isolation and in vitro maturation of follicles can pave the way for activities on reproductive tissue engineering (REPROTEN) and developing an artificial ovary. In this regard, the standardization and optimization of the extraction methods are pivotal for the design of experiment of follicle in vitro growth. In the present study, we provided a comparative analysis among the outputs of porcine follicle isolation using either mechanical technique alone or in combination with collagenase or Liberase DH, proposing an optimized protocol useful for all further applications related to follicles' in vitro growth and REPROTEN.
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Affiliation(s)
- Amir Fattahi
- Department of Obstetrics and Gynecology, Comprehensive Cancer Center ER-EMN, Friedrich-Alexander University of Erlangen-Nürnberg, Erlangen University Hospital, Erlangen, Germany.,Women's Reproductive Health Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Liliana Liverani
- Department of Materials Science and Engineering, Institute of Biomaterials, Friedrich-Alexander University of Erlangen-Nürnberg, Erlangen, Germany
| | - Ralf Dittrich
- Department of Obstetrics and Gynecology, Comprehensive Cancer Center ER-EMN, Friedrich-Alexander University of Erlangen-Nürnberg, Erlangen University Hospital, Erlangen, Germany
| | - Inge Hoffmann
- Department of Obstetrics and Gynecology, Comprehensive Cancer Center ER-EMN, Friedrich-Alexander University of Erlangen-Nürnberg, Erlangen University Hospital, Erlangen, Germany
| | - Aldo R Boccaccini
- Department of Materials Science and Engineering, Institute of Biomaterials, Friedrich-Alexander University of Erlangen-Nürnberg, Erlangen, Germany
| | - Matthias W Beckmann
- Department of Obstetrics and Gynecology, Comprehensive Cancer Center ER-EMN, Friedrich-Alexander University of Erlangen-Nürnberg, Erlangen University Hospital, Erlangen, Germany
| | - Nathalie Bleisinger
- Department of Obstetrics and Gynecology, Comprehensive Cancer Center ER-EMN, Friedrich-Alexander University of Erlangen-Nürnberg, Erlangen University Hospital, Erlangen, Germany
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Witko T, Solarz D, Feliksiak K, Haraźna K, Rajfur Z, Guzik M. Insights into In Vitro Wound Closure on Two Biopolyesters-Polylactide and Polyhydroxyoctanoate. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E2793. [PMID: 32575761 PMCID: PMC7344463 DOI: 10.3390/ma13122793] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 06/17/2020] [Accepted: 06/18/2020] [Indexed: 12/12/2022]
Abstract
Two bio-based polymers have been compared in this study, namely: polylactide (PLA) and polyhydroxyoctanoate (PHO). Due to their properties such as biocompatibility, and biointegrity they are considered to be valuable materials for medical purposes, i.e., creating scaffolds or wound dressings. Presented biopolymers were investigated for their impact on cellular migration strategies of mouse embryonic fibroblasts (MEF) 3T3 cell line. Advanced microscopic techniques, including confocal microscopy and immunofluorescent protocols, enabled the thorough analysis of the cell shape and migration. Application of wound healing assay combined with dedicated software allowed us to perform quantitative analysis of wound closure dynamics. The outcome of the experiments demonstrated that the wound closure dynamics for PLA differs from PHO. Single fibroblasts grown on PLA moved 1.5-fold faster, than those migrating on the PHO surface. However, when a layer of cells was considered, the wound closure was by 4.1 h faster for PHO material. The accomplished work confirms the potential of PLA and PHO as excellent candidates for medical applications, due to their properties that propagate cell migration, vitality, and proliferation-essential cell processes in the healing of damaged tissues.
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Affiliation(s)
- Tomasz Witko
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, Lojasiewicza 11, 30-348 Krakow, Poland; (T.W.); (D.S.); (K.F.)
- Jerzy Haber Institute of Catalysis and Surface Chemistry Polish Academy of Sciences, Niezapominajek 8, 30-239 Krakow, Poland;
| | - Daria Solarz
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, Lojasiewicza 11, 30-348 Krakow, Poland; (T.W.); (D.S.); (K.F.)
| | - Karolina Feliksiak
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, Lojasiewicza 11, 30-348 Krakow, Poland; (T.W.); (D.S.); (K.F.)
| | - Katarzyna Haraźna
- Jerzy Haber Institute of Catalysis and Surface Chemistry Polish Academy of Sciences, Niezapominajek 8, 30-239 Krakow, Poland;
| | - Zenon Rajfur
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, Lojasiewicza 11, 30-348 Krakow, Poland; (T.W.); (D.S.); (K.F.)
| | - Maciej Guzik
- Jerzy Haber Institute of Catalysis and Surface Chemistry Polish Academy of Sciences, Niezapominajek 8, 30-239 Krakow, Poland;
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Dev A, Mohanbhai SJ, Kushwaha AC, Sood A, Sardoiwala MN, Choudhury SR, Karmakar S. κ-carrageenan-C-phycocyanin based smart injectable hydrogels for accelerated wound recovery and real-time monitoring. Acta Biomater 2020; 109:121-131. [PMID: 32335311 DOI: 10.1016/j.actbio.2020.03.023] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 03/05/2020] [Accepted: 03/17/2020] [Indexed: 01/05/2023]
Abstract
Wound healing remains a healthcare challenge in patients suffering from grave tissue damage due to burn injuries and severe medical conditions like diabetes and ischemia. A repeated wound dressing in such cases leads to tissue damage, which could further inflate the wound healing. It is also challenging to analyze the depth of wound bed in these conditions, which could affect the recovery period. To address this need, we have developed an injectable hydrogel from natural polysaccharide κ-carrageenan and a pigmented protein C-phycocyanin. C-phycocyanin has wound healing, antimicrobial, antioxidant and anti-inflammatory properties along with the In-vivo fluorescence imaging ability. Gelling property of κ-carrageenan could be utilized along with C-phycocyanin as an injectable and regenerative wound dressings matrix to monitor wound healing in real-time without upsetting the healing process. The hydrogel presented herein was built from ionic crosslinking of κ-carrageenan monomers along with C-phycocyanin, which provides an interconnected network of porous material with hydrophilic surface and mechanical stiffness. This porosity allows nutrients transportation and gaseous exchange across the wound healing site for the proliferation of various cells. Hydrogel material enhances the proliferation of dermal fibroblasts in vitro without inducing inflammation along with reducing the blood clotting time with no haemolysis. We have found that κ-carrageenan-C-phycocyanin (κ-CRG-C-Pc) hydrogel not only exhibit superior haemostatic capabilities in traumatic injury condition but also provide support for rapid wound healing. Overall, these findings demonstrate the potential of κ-carrageenan-C-phycocyanin hydrogels as a wound-healing and imaging platform towards accelerating tissue repair and real-time monitoring. STATEMENT OF SIGNIFICANCE: Blood clotting and inflammation are the most crucial stages of wound healing along with appropriate monitoring of the healing process. Thus, there is a need of system that could provide point-to-point care and monitoring in this multistage process. Here, we have introduced a self healing, injectable hydrogel system with in vivo imaging abilities from κ-carragenan and C-phycocyanin. C-phycocyanin improves the stability of κ-carragenan matrix and provide support to cellular adhesion, proliferation, and migration. Its anti-inflammatory response and rapid blood clotting ability further empower its applicability in critical medical conditions and wound recovery.
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46
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Dubbin K, Robertson C, Hinckley A, Alvarado JA, Gilmore SF, Hynes WF, Wheeler EK, Moya ML. Macromolecular gelatin properties affect fibrin microarchitecture and tumor spheroid behavior in fibrin-gelatin gels. Biomaterials 2020; 250:120035. [PMID: 32334200 DOI: 10.1016/j.biomaterials.2020.120035] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 03/24/2020] [Accepted: 04/06/2020] [Indexed: 01/22/2023]
Abstract
The biophysical properties of extracellular matrices (ECM) are known to regulate cell behavior, however decoupling cell behavior changes due to the relative contributions of material microstructure versus biomechanics or nutrient permeability remains challenging, especially within complex, multi-material matrices. We developed four gelatin-fibrin interpenetrating network (IPN) formulations which are identical in composition but possess variable gelatin molecular weight distributions, and display differences in microstructure, biomechanics, and diffusivity. In this work we interrogate the response of multicellular tumor spheroids to these IPN formulations and found that a high stiffness, gelatin-network dominated IPNs impeded remodeling and invasion of multicellular tumor spheroids; whereas relatively lower stiffness, fibrin-network dominated IPNs permitted protease-dependent remodeling and spheroid invasion. Cell proliferation correlated to nutrient diffusivity across tested IPN formulations. These findings demonstrate the complexity of ECM IPNs, relative to single polymer matrices, and highlight that cell response does not derive from a single aspect of the ECM, but rather from the interplay of multiple biomechanical properties. The methodology developed here represents a framework for future studies which aim to characterize cellular phenotypic responses to biophysical cues present within complex, multi-material matrices.
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Affiliation(s)
- Karen Dubbin
- Engineering Directorate, Lawrence Livermore National Laboratory, Livermore, CA, USA
| | - Claire Robertson
- Engineering Directorate, Lawrence Livermore National Laboratory, Livermore, CA, USA
| | - Aubree Hinckley
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA, USA
| | - Javier A Alvarado
- Engineering Directorate, Lawrence Livermore National Laboratory, Livermore, CA, USA
| | - Sean F Gilmore
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA, USA
| | - William F Hynes
- Engineering Directorate, Lawrence Livermore National Laboratory, Livermore, CA, USA
| | - Elizabeth K Wheeler
- Engineering Directorate, Lawrence Livermore National Laboratory, Livermore, CA, USA
| | - Monica L Moya
- Engineering Directorate, Lawrence Livermore National Laboratory, Livermore, CA, USA.
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Gao W, Sun L, Zhang Z, Li Z. Cellulose nanocrystals reinforced gelatin/bioactive glass nanocomposite scaffolds for potential application in bone regeneration. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2020; 31:984-998. [DOI: 10.1080/09205063.2020.1735607] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Wenwei Gao
- National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu, China
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu, China
| | - Liying Sun
- National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu, China
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu, China
| | - Zetian Zhang
- National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu, China
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu, China
| | - Zhengjun Li
- National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu, China
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu, China
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48
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Loy N, Preziosi L. Modelling physical limits of migration by a kinetic model with non-local sensing. J Math Biol 2020; 80:1759-1801. [DOI: 10.1007/s00285-020-01479-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 12/24/2019] [Indexed: 01/30/2023]
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Ravanbakhsh H, Bao G, Mongeau L. Carbon nanotubes promote cell migration in hydrogels. Sci Rep 2020; 10:2543. [PMID: 32054957 PMCID: PMC7018775 DOI: 10.1038/s41598-020-59463-9] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 01/24/2020] [Indexed: 12/15/2022] Open
Abstract
Injectable hydrogels are increasingly used for in situ tissue regeneration and wound healing. Ideally, an injectable implant should promote the recruitment of cells from the surrounding native tissue and allow cells to migrate freely as they generate a new extracellular matrix network. Nanocomposite hydrogels such as carbon nanotube (CNT)-loaded hydrogels have been hypothesized to promote cell recruitment and cell migration relative to unloaded ones. To investigate this, CNT-glycol chitosan hydrogels were synthesized and studied. Chemoattractant-induced cell migration was studied using a modified Boyden Chamber experiment. Migrated cells were counted using flow cytometry. Cell adhesion was inferred from the morphology of the cells via an image segmentation method. Cell migration and recruitment results confirmed that small concentrations of CNT significantly increase cell migration in hydrogels, thereby accelerating tissue regeneration and wound healing in situations where there is insufficient migration in the unloaded matrix.
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Affiliation(s)
- Hossein Ravanbakhsh
- Department of Mechanical Engineering, McGill University, Montreal, QC, H3A0C3, Canada
| | - Guangyu Bao
- Department of Mechanical Engineering, McGill University, Montreal, QC, H3A0C3, Canada
| | - Luc Mongeau
- Department of Mechanical Engineering, McGill University, Montreal, QC, H3A0C3, Canada.
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50
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Liu J, Chen H, Wang Y, Li G, Zheng Z, Kaplan DL, Wang X, Wang X. Flexible Water-Absorbing Silk-Fibroin Biomaterial Sponges with Unique Pore Structure for Tissue Engineering. ACS Biomater Sci Eng 2020; 6:1641-1649. [DOI: 10.1021/acsbiomaterials.9b01721] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Jian Liu
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
| | - Huijuan Chen
- College of Basic Medical Science, Dalian Medical University, Dalian 116044, People’s Republic of China
| | - Yongfeng Wang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
| | - Gang Li
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
| | - Zhaozhu Zheng
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
| | - David L. Kaplan
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, Massachusetts 02155, United States
| | - Xiuli Wang
- College of Basic Medical Science, Dalian Medical University, Dalian 116044, People’s Republic of China
| | - Xiaoqin Wang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
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