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Yang N, Shen R, Yang W, Zhang S, Gong T, Liu Y. Biomimetic pulp scaffolds prepared from extracellular matrix derived from stem cells from human exfoliated deciduous teeth promote pulp-dentine complex regeneration. Int Endod J 2024; 57:1279-1292. [PMID: 38828966 DOI: 10.1111/iej.14099] [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: 10/17/2023] [Revised: 03/25/2024] [Accepted: 05/08/2024] [Indexed: 06/05/2024]
Abstract
AIM To evaluate the role of biomimetic pulp scaffolds derived from the extracellular matrix derived of stem cells from human exfoliated deciduous teeth (SHED-ECM-PS) in promoting pulp-dentine complex regeneration. METHODOLOGY SHED-ECM-PS was prepared through cell aggregation and decellularization techniques. Histological and immunofluorescence analyses, scanning electron microscopy, and DNA quantification assays were used to characterize the SHED-ECM-PS. Additionally, a tooth slice implantation model was established to evaluate the effects of SHED-ECM-PS on regeneration of the pulp-dentine complex in vivo. Extraction medium for SHED-ECM-PS was prepared, and its effect on bone marrow mesenchymal stem cells (BMMSCs) was assessed in vitro. Cell counting kit-8 and Ki-67 staining assays were performed to determine cell proliferation. The rate of apoptosis was evaluated by flow cytometry. Wound healing and transwell assays were conducted to evaluate cell migration. Alizarin red S staining was performed to examine mineralized nodule formation. Western blotting was used to detect the expression of osteogenic and odontogenic markers. The results were analysed using an independent two-tailed Student's t-test. p < .05 was considered statistically significant. RESULTS SHED-ECM-PS was successfully constructed, exhibiting a striped dental pulp-like shape devoid of nuclear structures or DNA components, and rich in fibronectin, collagen I, DMP1 and DSPP. Notably, SHED-ECM-PS showed no impact on the proliferation or apoptosis of BMMSCs. Histological analysis revealed that dental pulp fibroblasts formed an interwoven mesh in the root canal, and angiogenesis was observed in the SHED-ECM-PS group. Moreover, a continuous, newly formed tubular dentine layer with polarized odontoblast-like cells was observed along the inner wall of the root canal. SHED-ECM-PS promoted the migration, polar alignment and mineralized nodule formation of BMMSCs and specifically elevated the expression levels of odontogenic markers, but not osteogenic markers, compared with the control group in vitro. CONCLUSION SHED-ECM-PS exhibited no cytotoxicity and promoted pulp-dentine complex regeneration in vivo as well as cell migration and odontogenic differentiation of BMMSCs in vitro. These findings provide evidence that SHED-ECM-PS, as a novel biological scaffold, has the potential to improve the outcomes of REPs.
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Affiliation(s)
- Ning Yang
- Department of Pediatric Dentistry, School and Hospital of Stomatology, China Medical University, Shenyang, China
- Liaoning Province Key Laboratory of Oral Disease, Shenyang, China
| | - Rou Shen
- Department of Pediatric Dentistry, School and Hospital of Stomatology, China Medical University, Shenyang, China
- Liaoning Province Key Laboratory of Oral Disease, Shenyang, China
| | - Wenxiao Yang
- Department of Pediatric Dentistry, School and Hospital of Stomatology, China Medical University, Shenyang, China
- Liaoning Province Key Laboratory of Oral Disease, Shenyang, China
| | - Shengcai Zhang
- Department of Pediatric Dentistry, School and Hospital of Stomatology, China Medical University, Shenyang, China
- Liaoning Province Key Laboratory of Oral Disease, Shenyang, China
| | - Tianxing Gong
- Department of Biomedical Engineering, Shenyang University of Technology, Shenyang, China
| | - Yao Liu
- Department of Pediatric Dentistry, School and Hospital of Stomatology, China Medical University, Shenyang, China
- Liaoning Province Key Laboratory of Oral Disease, Shenyang, China
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2
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Petkidis A, Andriasyan V, Murer L, Volle R, Greber UF. A versatile automated pipeline for quantifying virus infectivity by label-free light microscopy and artificial intelligence. Nat Commun 2024; 15:5112. [PMID: 38879641 PMCID: PMC11180103 DOI: 10.1038/s41467-024-49444-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Accepted: 06/03/2024] [Indexed: 06/19/2024] Open
Abstract
Virus infectivity is traditionally determined by endpoint titration in cell cultures, and requires complex processing steps and human annotation. Here we developed an artificial intelligence (AI)-powered automated framework for ready detection of virus-induced cytopathic effect (DVICE). DVICE uses the convolutional neural network EfficientNet-B0 and transmitted light microscopy images of infected cell cultures, including coronavirus, influenza virus, rhinovirus, herpes simplex virus, vaccinia virus, and adenovirus. DVICE robustly measures virus-induced cytopathic effects (CPE), as shown by class activation mapping. Leave-one-out cross-validation in different cell types demonstrates high accuracy for different viruses, including SARS-CoV-2 in human saliva. Strikingly, DVICE exhibits virus class specificity, as shown with adenovirus, herpesvirus, rhinovirus, vaccinia virus, and SARS-CoV-2. In sum, DVICE provides unbiased infectivity scores of infectious agents causing CPE, and can be adapted to laboratory diagnostics, drug screening, serum neutralization or clinical samples.
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Affiliation(s)
- Anthony Petkidis
- Department of Molecular Life Sciences, University of Zürich, Winterthurerstrasse 190, 8057, Zürich, Switzerland
- Life Science Zurich Graduate School, ETH and University of Zürich, 8057, Zurich, Switzerland
| | - Vardan Andriasyan
- Department of Molecular Life Sciences, University of Zürich, Winterthurerstrasse 190, 8057, Zürich, Switzerland
| | - Luca Murer
- Department of Molecular Life Sciences, University of Zürich, Winterthurerstrasse 190, 8057, Zürich, Switzerland
- Roche Diagnostics, Forrenstrasse 2, 6343, Rotkreuz, Switzerland
| | - Romain Volle
- Department of Molecular Life Sciences, University of Zürich, Winterthurerstrasse 190, 8057, Zürich, Switzerland
| | - Urs F Greber
- Department of Molecular Life Sciences, University of Zürich, Winterthurerstrasse 190, 8057, Zürich, Switzerland.
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Buick E, Mead A, Alhubaysh A, Bou Assi P, Das P, Dayus J, Turner M, Kowalski L, Murray J, Renshaw D, Farnaud S. CellShip: An Ambient Temperature Transport and Short-Term Storage Medium for Mammalian Cell Cultures. Biopreserv Biobank 2024; 22:275-285. [PMID: 38150708 DOI: 10.1089/bio.2023.0100] [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] [Indexed: 12/29/2023] Open
Abstract
Cell culture is a critical platform for numerous research and industrial processes. However, methods for transporting cells are largely limited to cryopreservation, which is logistically challenging, requires the use of potentially cytotoxic cryopreservatives, and can result in poor cell recovery. Development of a transport media that can be used at ambient temperatures would alleviate these issues. In this study, we describe a novel transportation medium for mammalian cells. Five commonly used cell lines, (HEK293, CHO, HepG2, K562, and Jurkat) were successfully shipped and stored for a minimum of 72 hours and up to 96 hours at ambient temperature, after which, cells were recovered into standard culture conditions. Viability (%) and cell numbers, were examined, before, following the transport/storage period and following the recovery period. In all experiments, cell numbers returned to pretransport/storage concentration within 24-48 hours recovery. Imaging data indicated that HepG2 cells were fully adherent and had established typical growth morphology following 48 hours recovery, which was not seen in cells recovered from cryopreservation. Following recovery, Jurkat cells that had been subjected to a 96 hours transport/storage period, demonstrated a 1.93-fold increase compared with the starting cell number with >95% cell viability. We conclude that CellShip® may represent a viable method for the transportation of mammalian cells for multiple downstream applications in the Life Sciences research sector.
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Affiliation(s)
- Emma Buick
- Life Science Production, Bedford, United Kingdom
- Center of Sport, Exercise and Life Sciences, Coventry University, Coventry, United Kingdom
| | - Andrew Mead
- Comparative Biomedical Sciences, The Royal Veterinary College (RVC), London, United Kingdom
| | | | | | - Parijat Das
- Life Science Production, Bedford, United Kingdom
| | - James Dayus
- Center of Sport, Exercise and Life Sciences, Coventry University, Coventry, United Kingdom
- Faculty of Health and Life Sciences, School of Life Sciences, Coventry University, Coventry, United Kingdom
| | - Mark Turner
- Center of Sport, Exercise and Life Sciences, Coventry University, Coventry, United Kingdom
| | - Lukasz Kowalski
- Life Science Production, Bedford, United Kingdom
- Center of Sport, Exercise and Life Sciences, Coventry University, Coventry, United Kingdom
| | - Jenny Murray
- Life Science Production, Bedford, United Kingdom
| | - Derek Renshaw
- Center of Sport, Exercise and Life Sciences, Coventry University, Coventry, United Kingdom
| | - Sebastien Farnaud
- Center of Sport, Exercise and Life Sciences, Coventry University, Coventry, United Kingdom
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Simińska-Stanny J, Nicolas L, Chafai A, Jafari H, Hajiabbas M, Dodi G, Gardikiotis I, Delporte C, Nie L, Podstawczyk D, Shavandi A. Advanced PEG-tyramine biomaterial ink for precision engineering of perfusable and flexible small-diameter vascular constructs via coaxial printing. Bioact Mater 2024; 36:168-184. [PMID: 38463551 PMCID: PMC10924180 DOI: 10.1016/j.bioactmat.2024.02.019] [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: 10/04/2023] [Revised: 02/09/2024] [Accepted: 02/16/2024] [Indexed: 03/12/2024] Open
Abstract
Vascularization is crucial for providing nutrients and oxygen to cells while removing waste. Despite advances in 3D-bioprinting, the fabrication of structures with void spaces and channels remains challenging. This study presents a novel approach to create robust yet flexible and permeable small (600-1300 μm) artificial vessels in a single processing step using 3D coaxial extrusion printing of a biomaterial ink, based on tyramine-modified polyethylene glycol (PEG-Tyr). We combined the gelatin biocompatibility/activity, robustness of PEG-Tyr and alginate with the shear-thinning properties of methylcellulose (MC) in a new biomaterial ink for the fabrication of bioinspired vessels. Chemical characterization using NMR and FTIR spectroscopy confirmed the successful modification of PEG with Tyr and rheological characterization indicated that the addition of PEG-Tyr decreased the viscosity of the ink. Enzyme-mediated crosslinking of PEG-Tyr allowed the formation of covalent crosslinks within the hydrogel chains, ensuring its stability. PEG-Tyr units improved the mechanical properties of the material, resulting in stretchable and elastic constructs without compromising cell viability and adhesion. The printed vessel structures displayed uniform wall thickness, shape retention, improved elasticity, permeability, and colonization by endothelial-derived - EA.hy926 cells. The chorioallantoic membrane (CAM) and in vivo assays demonstrated the hydrogel's ability to support neoangiogenesis. The hydrogel material with PEG-Tyr modification holds promise for vascular tissue engineering applications, providing a flexible, biocompatible, and functional platform for the fabrication of vascular structures.
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Affiliation(s)
- Julia Simińska-Stanny
- Université Libre de Bruxelles (ULB), École polytechnique de Bruxelles, 3BIO-BioMatter, Avenue F.D. Roosevelt, 50 - CP 165/61, 1050, Brussels, Belgium
| | - Lise Nicolas
- Université Libre de Bruxelles (ULB), École polytechnique de Bruxelles, 3BIO-BioMatter, Avenue F.D. Roosevelt, 50 - CP 165/61, 1050, Brussels, Belgium
- European School of Materials Science and Engineering, University of Lorraine, Nancy, France
| | - Adam Chafai
- Université Libre de Bruxelles (ULB), Micro-milli Platform, Avenue F.D. Roosevelt, 50 - CP 165/67, 1050, Brussels, Belgium
| | - Hafez Jafari
- Université Libre de Bruxelles (ULB), École polytechnique de Bruxelles, 3BIO-BioMatter, Avenue F.D. Roosevelt, 50 - CP 165/61, 1050, Brussels, Belgium
| | - Maryam Hajiabbas
- Université Libre de Bruxelles (ULB), École polytechnique de Bruxelles, 3BIO-BioMatter, Avenue F.D. Roosevelt, 50 - CP 165/61, 1050, Brussels, Belgium
- Université Libre de Bruxelles (ULB), Faculté de Médecine, Campus Erasme - CP 611, Laboratory of Pathophysiological and Nutritional Biochemistry, Route de Lennik, 808, 1070, Bruxelles, Belgium
| | - Gianina Dodi
- Faculty of Medical Bioengineering, Grigore T. Popa, University of Medicine and Pharmacy of Iasi, Romania
| | - Ioannis Gardikiotis
- Advanced Research and Development Center for Experimental Medicine, Grigore T. Popa, University of Medicine and Pharmacy of Iasi, Romania
| | - Christine Delporte
- Université Libre de Bruxelles (ULB), Faculté de Médecine, Campus Erasme - CP 611, Laboratory of Pathophysiological and Nutritional Biochemistry, Route de Lennik, 808, 1070, Bruxelles, Belgium
| | - Lei Nie
- Université Libre de Bruxelles (ULB), École polytechnique de Bruxelles, 3BIO-BioMatter, Avenue F.D. Roosevelt, 50 - CP 165/61, 1050, Brussels, Belgium
- College of Life Science, Xinyang Normal University, Xinyang, China
| | - Daria Podstawczyk
- Department of Process Engineering and Technology of Polymer and Carbon Materials, Faculty of Chemistry, Wroclaw University of Science and Technology, Norwida 4/6, 50-373, Wroclaw, Poland
| | - Amin Shavandi
- Université Libre de Bruxelles (ULB), École polytechnique de Bruxelles, 3BIO-BioMatter, Avenue F.D. Roosevelt, 50 - CP 165/61, 1050, Brussels, Belgium
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Lin J, Zhang Q, Xie T, Wu Z, Hou Y, Song Y, Lin Y, Lin JM. Understanding Macrophage-Tumor Interactions: Insights from Single-Cell Behavior Monitoring in a Sessile Microdroplet System. SMALL METHODS 2024:e2301659. [PMID: 38623914 DOI: 10.1002/smtd.202301659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 03/25/2024] [Indexed: 04/17/2024]
Abstract
Interaction between tumor-associated macrophages and tumor cells is crucial for tumor development, metastasis, and the related immune process. However, the macrophages are highly heterogeneous spanning from anti-tumorigenic to pro-tumorigenic, which needs to be understood at the single-cell level. Herein, a sessile microdroplet system designed for monitoring cellular behavior and analyzing intercellular interaction, demonstrated with macrophage-tumor cell pairs is presented. An automatic procedure based on the inkjet printing method is utilized for the precise pairing and co-encapsulation of heterotypic cells within picoliter droplets. The sessile nature of microdroplets ensures controlled fusion and provides stable environments conducive to adherent cell culture. The nitric oxide generation and morphological changes over incubation are explored to reveal the complicated interactions from a single-cell perspective. The immune response of macrophages under distinct cellular microenvironments is recorded. The results demonstrate that the tumor microenvironment displays a modulating role in polarizing macrophages from anti-tumorigenic into pro-tumorigenic phenotype. The approach provides a versatile and compatible platform to investigate intercellular interaction at the single-cell level, showing promising potential for advancing single-cell behavior studies.
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Affiliation(s)
- Jiaxu Lin
- Department of Chemistry, Beijing Key Laboratory of Microanalytical Methods and Instrumentation, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing, 100084, China
| | - Qiang Zhang
- Department of Chemistry, Beijing Key Laboratory of Microanalytical Methods and Instrumentation, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing, 100084, China
| | - Tianze Xie
- Department of Chemistry, Beijing Key Laboratory of Microanalytical Methods and Instrumentation, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing, 100084, China
| | - Zengnan Wu
- Department of Chemistry, Beijing Key Laboratory of Microanalytical Methods and Instrumentation, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing, 100084, China
| | - Ying Hou
- Department of Chemistry, Beijing Key Laboratory of Microanalytical Methods and Instrumentation, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing, 100084, China
| | - Yang Song
- Department of Chemistry, Beijing Key Laboratory of Microanalytical Methods and Instrumentation, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing, 100084, China
| | - Yongning Lin
- Department of Chemistry, Beijing Key Laboratory of Microanalytical Methods and Instrumentation, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing, 100084, China
| | - Jin-Ming Lin
- Department of Chemistry, Beijing Key Laboratory of Microanalytical Methods and Instrumentation, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing, 100084, China
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Xu J, Liu X, Liang P, Yuan H, Yang T. In Situ Preparation of Tannic Acid-Modified Poly( N-isopropylacrylamide) Hydrogel Coatings for Boosting Cell Response. Pharmaceutics 2024; 16:538. [PMID: 38675199 PMCID: PMC11054217 DOI: 10.3390/pharmaceutics16040538] [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: 03/14/2024] [Revised: 04/07/2024] [Accepted: 04/10/2024] [Indexed: 04/28/2024] Open
Abstract
The improvement of the capability of poly(N-isopropylacrylamide) (PNIPAAm) hydrogel coating in cell adhesion and detachment is critical to efficiently prepare cell sheets applied in cellular therapies and tissue engineering. To enhance cell response on the surface, the amine group-modified PNIPAAm (PNIPAAm-APTES) nanohydrogels were synthesized and deposited spontaneously on tannic acid (TA)-modified polyethylene (PE) plates. Subsequently, TA was introduced onto PNIPAAm-APTES nanohydrogels to fabricate coatings composed of TA-modified PNIPAAm-APTES (PNIPAAm-APTES-TA). Characterization techniques, including TEM, SEM, XPS, and UV-Vis spectroscopy, confirmed the effective deposition of hydrogels of PNIPAAm as well as the morphologies, content of chemical bonding-TA, and stability of various coatings. Importantly, the porous hydrogel coatings exhibited superhydrophilicity at 20 °C and thermo-responsive behavior. The fluorescence measurement demonstrated that the coating's stability effectively regulated protein behavior, influencing cell response. Notably, cell response tests revealed that even without precise control over the chain length/thickness of PNIPAAm during synthesis, the coatings enhanced cell adhesion and detachment, facilitating efficient cell culture. This work represented a novel and facile approach to preparing bioactive PNIPAAm for cell culture.
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Affiliation(s)
- Jufei Xu
- Department of Pharmacy, Air Force Medical Center, PLA, Air Force Medical University, Beijing 100142, China;
- School of Life Science and Technology, Henan Institute of Science and Technology, Xinxiang 453003, China;
| | - Xiangzhe Liu
- School of Life Science and Technology, Henan Institute of Science and Technology, Xinxiang 453003, China;
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Pengpeng Liang
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China;
| | - Hailong Yuan
- Department of Pharmacy, Air Force Medical Center, PLA, Air Force Medical University, Beijing 100142, China;
| | - Tianyou Yang
- School of Life Science and Technology, Henan Institute of Science and Technology, Xinxiang 453003, China;
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Wu B, Tang Y, Yao K, Luo X, Feng S, Wang K, Zhou X, Xiang L. Ion-incorporated titanium implants for staged regulation of antibacterial activity and immunoregulation-mediated osteogenesis. NANOSCALE 2024; 16:7167-7184. [PMID: 38504613 DOI: 10.1039/d3nr05858a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
Antibacterial properties and osteogenic activity are considered as two crucial factors for the initial healing and long-term survivability of orthopedic implants. For decades, various drug-loaded implants to enhance biological activities have been investigated extensively. More importantly, to control the drug release timing is equally significant due to the sequential biological processes after implantation. Hence, developing a staged regulation system on the titanium surface is practically significant. Here, we prepared TiO2 nanotubes (TiO2 NTs) on the titanium surface by anodization, followed by the incorporation of zinc (Zn) and strontium (Sr) sequentially through a hydrothermal process. Surface characterization confirmed the successful fabrication of Zn and Sr-incorporated TiO2 NTs (Zn-Sr/TiO2) on the titanium surface. The ion release results exhibited the differential release characteristic of Zn and Sr, which meant the early-stage release of Zn and the long-term release of Sr. It was exactly in accord with the biological process after implantation, laying the basis of staged regulation after implantation. Zn-Sr/TiO2 showed favorable anti-early infection properties both in vitro and in vivo. Its inhibition effect on bacterial biofilm formation was attributed to the resistance against bacteria's initial adhesion and the killing effect on planktonic bacteria. Additionally, the release of Sr could alleviate infection-induced damage via immunoregulation. The biocompatibility and osteogenic activity mediated by M2 macrophage activation were confirmed with in vitro and in vivo studies. Therefore, it exhibited great potential in staged regulation for antibacterial activity in the early stage and the M2 activation-mediated osteogenic activity in the late stage. The staged regulation process was based on the differential release of Zn and Sr to achieve the early antibacterial effect and the long-term immune-induced osteogenic activity, to prevent implant-related infection and achieve better osseointegration. These two kinds of ions played their roles synergistically and complement mutually. This work is expected to provide an innovative idea for realizing sequential regulation after implantation.
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Affiliation(s)
- Bingfeng Wu
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China.
| | - Yufei Tang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China.
| | - Keyi Yao
- School of Chemical Engineering, Sichuan University, Chengdu 610041, Sichuan, China.
| | - Xin Luo
- School of Chemical Engineering, Sichuan University, Chengdu 610041, Sichuan, China.
| | - Shuqi Feng
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China.
| | - Kai Wang
- School of Chemical Engineering, Sichuan University, Chengdu 610041, Sichuan, China.
| | - Xuemei Zhou
- School of Chemical Engineering, Sichuan University, Chengdu 610041, Sichuan, China.
| | - Lin Xiang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China.
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Yapp C, Nirmal AJ, Zhou F, Maliga Z, Tefft JB, Llopis PM, Murphy GF, Lian CG, Danuser G, Santagata S, Sorger PK. Multiplexed 3D Analysis of Immune States and Niches in Human Tissue. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.11.10.566670. [PMID: 38014052 PMCID: PMC10680601 DOI: 10.1101/2023.11.10.566670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Tissue homeostasis and the emergence of disease are controlled by changes in the proportions of resident and recruited cells, their organization into cellular neighbourhoods, and their interactions with acellular tissue components. Highly multiplexed tissue profiling (spatial omics)1 makes it possible to study this microenvironment in situ, usually in 4-5 micron thick sections (the standard histopathology format)2. Microscopy-based tissue profiling is commonly performed at a resolution sufficient to determine cell types but not to detect subtle morphological features associated with cytoskeletal reorganisation, juxtracrine signalling, or membrane trafficking3. Here we describe a high-resolution 3D imaging approach able to characterize a wide variety of organelles and structures at sub-micron scale while simultaneously quantifying millimetre-scale spatial features. This approach combines cyclic immunofluorescence (CyCIF) imaging4 of over 50 markers with confocal microscopy of archival human tissue thick enough (30-40 microns) to fully encompass two or more layers of intact cells. 3D imaging of entire cell volumes substantially improves the accuracy of cell phenotyping and allows cell proximity to be scored using plasma membrane apposition, not just nuclear position. In pre-invasive melanoma in situ5, precise phenotyping shows that adjacent melanocytic cells are plastic in state and participate in tightly localised niches of interferon signalling near sites of initial invasion into the underlying dermis. In this and metastatic melanoma, mature and precursor T cells engage in an unexpectedly diverse array of juxtracrine and membrane-membrane interactions as well as looser "neighbourhood" associations6 whose morphologies reveal functional states. These data provide new insight into the transitions occurring during early tumour formation and immunoediting and demonstrate the potential for phenotyping of tissues at a level of detail previously restricted to cultured cells and organoids.
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Affiliation(s)
- Clarence Yapp
- Laboratory of Systems Pharmacology, Harvard Medical School, Boston, MA, 02115, USA
- Ludwig Centre at Harvard, Harvard Medical School, Boston, MA, 02115, USA
| | - Ajit J. Nirmal
- Laboratory of Systems Pharmacology, Harvard Medical School, Boston, MA, 02115, USA
- Ludwig Centre at Harvard, Harvard Medical School, Boston, MA, 02115, USA
- Department of Dermatology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Felix Zhou
- Lyda Hill Department of Bioinformatics, UT Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Zoltan Maliga
- Laboratory of Systems Pharmacology, Harvard Medical School, Boston, MA, 02115, USA
| | - Juliann B. Tefft
- Laboratory of Systems Pharmacology, Harvard Medical School, Boston, MA, 02115, USA
- Ludwig Centre at Harvard, Harvard Medical School, Boston, MA, 02115, USA
| | - Paula Montero Llopis
- Microscopy Resources on the North Quad (MicRoN), Harvard Medical School, Boston, MA 02115, USA
| | - George F. Murphy
- Department of Pathology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Christine G. Lian
- Department of Pathology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Gaudenz Danuser
- Lyda Hill Department of Bioinformatics, UT Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Sandro Santagata
- Laboratory of Systems Pharmacology, Harvard Medical School, Boston, MA, 02115, USA
- Ludwig Centre at Harvard, Harvard Medical School, Boston, MA, 02115, USA
- Department of Pathology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, 02115, USA
- Department of Systems Biology, Harvard Medical School, 200 Longwood Avenue, Boston, MA 02115, USA
| | - Peter K. Sorger
- Laboratory of Systems Pharmacology, Harvard Medical School, Boston, MA, 02115, USA
- Ludwig Centre at Harvard, Harvard Medical School, Boston, MA, 02115, USA
- Department of Systems Biology, Harvard Medical School, 200 Longwood Avenue, Boston, MA 02115, USA
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Lin S, Feng D, Han X, Li L, Lin Y, Gao H. Microfluidic platform for omics analysis on single cells with diverse morphology and size: A review. Anal Chim Acta 2024; 1294:342217. [PMID: 38336406 DOI: 10.1016/j.aca.2024.342217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 01/04/2024] [Accepted: 01/04/2024] [Indexed: 02/12/2024]
Abstract
BACKGROUND Microfluidic techniques have emerged as powerful tools in single-cell research, facilitating the exploration of omics information from individual cells. Cell morphology is crucial for gene expression and physiological processes. However, there is currently a lack of integrated analysis of morphology and single-cell omics information. A critical challenge remains: what platform technologies are the best option to decode omics data of cells that are complex in morphology and size? RESULTS This review highlights achievements in microfluidic-based single-cell omics and isolation of cells based on morphology, along with other cell sorting methods based on physical characteristics. Various microfluidic platforms for single-cell isolation are systematically presented, showcasing their diversity and adaptability. The discussion focuses on microfluidic devices tailored to the distinct single-cell isolation requirements in plants and animals, emphasizing the significance of considering cell morphology and cell size in optimizing single-cell omics strategies. Simultaneously, it explores the application of microfluidic single-cell sorting technologies to single-cell sequencing, aiming to effectively integrate information about cell shape and size. SIGNIFICANCE AND NOVELTY The novelty lies in presenting a comprehensive overview of recent accomplishments in microfluidic-based single-cell omics, emphasizing the integration of different microfluidic platforms and their implications for cell morphology-based isolation. By underscoring the pivotal role of the specialized morphology of different cells in single-cell research, this review provides robust support for delving deeper into the exploration of single-cell omics data.
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Affiliation(s)
- Shujin Lin
- Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou, 350025, China; Central Laboratory at the Second Affiliated Hospital of Fujian University of Traditional Chinese Medicine, Fujian-Macao Science and Technology Cooperation Base of Traditional Chinese Medicine-Oriented Chronic Disease Prevention and Treatment, Innovation and Transformation Center, Fujian University of Traditional Chinese Medicine, China
| | - Dan Feng
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Xiao Han
- College of Biological Science and Engineering, Fuzhou University, Fuzhou, 350108, China.
| | - Ling Li
- Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou, 350025, China; The First Clinical Medical College of Fujian Medical University, Fuzhou, 350004, China; Hepatopancreatobiliary Surgery Department, The First Affiliated Hospital of Fujian Medical University, Fuzhou, 350004, China.
| | - Yao Lin
- Central Laboratory at the Second Affiliated Hospital of Fujian University of Traditional Chinese Medicine, Fujian-Macao Science and Technology Cooperation Base of Traditional Chinese Medicine-Oriented Chronic Disease Prevention and Treatment, Innovation and Transformation Center, Fujian University of Traditional Chinese Medicine, China; Collaborative Innovation Center for Rehabilitation Technology, Fujian University of Traditional Chinese Medicine, China.
| | - Haibing Gao
- Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou, 350025, China.
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10
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Leggett SE, Brennan MC, Martinez S, Tien J, Nelson CM. Relatively Rare Populations of Invasive Cells Drive Progression of Heterogeneous Tumors. Cell Mol Bioeng 2024; 17:7-24. [PMID: 38435793 PMCID: PMC10902221 DOI: 10.1007/s12195-023-00792-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 12/19/2023] [Indexed: 03/05/2024] Open
Abstract
Introduction Breast tumors often display an astonishing degree of spatial and temporal heterogeneity, which are associated with cancer progression, drug resistance, and relapse. Triple-negative breast cancer (TNBC) is a particularly aggressive and heterogeneous subtype for which targeted therapies are scarce. Consequently, patients with TNBC have a poorer overall prognosis compared to other breast cancer patients. Within heterogeneous tumors, individual clonal subpopulations may exhibit differences in their rates of growth and degrees of invasiveness. We hypothesized that such phenotypic heterogeneity at the single-cell level may accelerate tumor progression by enhancing the overall growth and invasion of the entire tumor. Methods To test this hypothesis, we isolated and characterized clonal subpopulations with distinct morphologies and biomarker expression from the inherently heterogeneous 4T1 mouse mammary carcinoma cell line. We then leveraged a 3D microfluidic tumor model to reverse-engineer intratumoral heterogeneity and thus investigate how interactions between phenotypically distinct subpopulations affect tumor growth and invasion. Results We found that the growth and invasion of multiclonal tumors were largely dictated by the presence of cells with epithelial and mesenchymal traits, respectively. The latter accelerated overall tumor invasion, even when these cells comprised less than 1% of the initial population. Consistently, tumor progression was delayed by selectively targeting the mesenchymal subpopulation. Discussion This work reveals that highly invasive cells can dominate tumor phenotype and that specifically targeting these cells can slow the progression of heterogeneous tumors, which may help inform therapeutic approaches. Supplementary Information The online version contains supplementary material available at 10.1007/s12195-023-00792-w.
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Affiliation(s)
- Susan E. Leggett
- Department of Chemical & Biological Engineering, Princeton University, 303 Hoyt Laboratory, 25 William Street, Princeton, NJ 08544 USA
- Department of Bioengineering, University of Illinois Urbana-Champaign, Urbana, IL 61801 USA
| | - Molly C. Brennan
- Department of Chemical & Biological Engineering, Princeton University, 303 Hoyt Laboratory, 25 William Street, Princeton, NJ 08544 USA
| | - Sophia Martinez
- Department of Chemical & Biological Engineering, Princeton University, 303 Hoyt Laboratory, 25 William Street, Princeton, NJ 08544 USA
| | - Joe Tien
- Department of Biomedical Engineering, Boston University, Boston, MA 02215 USA
| | - Celeste M. Nelson
- Department of Chemical & Biological Engineering, Princeton University, 303 Hoyt Laboratory, 25 William Street, Princeton, NJ 08544 USA
- Department of Molecular Biology, Princeton University, Princeton, NJ 08544 USA
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11
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Wu T, Tan JHL, Sin W, Luah YH, Tan SY, Goh M, Birnbaum ME, Chen Q, Cheow LF. Cell Granularity Reflects Immune Cell Function and Enables Selection of Lymphocytes with Superior Attributes for Immunotherapy. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2302175. [PMID: 37544893 PMCID: PMC10558660 DOI: 10.1002/advs.202302175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 07/20/2023] [Indexed: 08/08/2023]
Abstract
In keeping with the rule of "form follows function", morphological aspects of a cell can reflect its role. Here, it is shown that the cellular granularity of a lymphocyte, represented by its intrinsic side scatter (SSC), is a potent indicator of its cell state and function. The granularity of a lymphocyte increases from naïve to terminal effector state. High-throughput cell-sorting yields a SSChigh population that can mediate immediate effector functions, and a highly prolific SSClow population that can give rise to the replenishment of the memory pool. CAR-T cells derived from the younger SSClow population possess desirable attributes for immunotherapy, manifested by increased naïve-like cells and stem cell memory (TSCM )-like cells together with a balanced CD4/CD8 ratio, as well as enhanced target-killing in vitro and in vivo. Altogether, lymphocyte segregation based on biophysical properties is an effective approach for label-free selection of cells that share collective functions and can have important applications for cell-based immunotherapies.
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Affiliation(s)
- Tongjin Wu
- Department of Biomedical EngineeringFaculty of EngineeringNational University of SingaporeSingapore117583Singapore
- Institute for Health Innovation and TechnologyNational University of SingaporeSingapore117599Singapore
| | - Joel Heng Loong Tan
- Institute of Molecular and Cell Biology (IMCB)Agency for ScienceTechnology and Research (A*STAR)Singapore138673Singapore
| | - Wei‐Xiang Sin
- Critical Analytics for Manufacturing of Personalized MedicineSingapore‐MIT Alliance for Research and TechnologySingapore138602Singapore
| | - Yen Hoon Luah
- Department of Biomedical EngineeringFaculty of EngineeringNational University of SingaporeSingapore117583Singapore
- Institute for Health Innovation and TechnologyNational University of SingaporeSingapore117599Singapore
- Critical Analytics for Manufacturing of Personalized MedicineSingapore‐MIT Alliance for Research and TechnologySingapore138602Singapore
| | - Sue Yee Tan
- Institute of Molecular and Cell Biology (IMCB)Agency for ScienceTechnology and Research (A*STAR)Singapore138673Singapore
| | - Myra Goh
- Institute of Molecular and Cell Biology (IMCB)Agency for ScienceTechnology and Research (A*STAR)Singapore138673Singapore
| | - Michael E. Birnbaum
- Critical Analytics for Manufacturing of Personalized MedicineSingapore‐MIT Alliance for Research and TechnologySingapore138602Singapore
- Department of Biological EngineeringMassachusetts Institute of TechnologyCambridgeMA02139USA
| | - Qingfeng Chen
- Institute of Molecular and Cell Biology (IMCB)Agency for ScienceTechnology and Research (A*STAR)Singapore138673Singapore
| | - Lih Feng Cheow
- Department of Biomedical EngineeringFaculty of EngineeringNational University of SingaporeSingapore117583Singapore
- Institute for Health Innovation and TechnologyNational University of SingaporeSingapore117599Singapore
- Critical Analytics for Manufacturing of Personalized MedicineSingapore‐MIT Alliance for Research and TechnologySingapore138602Singapore
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12
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Scrimieri R, Locatelli L, Cazzaniga A, Cazzola R, Malucelli E, Sorrentino A, Iotti S, Maier JA. Ultrastructural features mirror metabolic derangement in human endothelial cells exposed to high glucose. Sci Rep 2023; 13:15133. [PMID: 37704683 PMCID: PMC10499809 DOI: 10.1038/s41598-023-42333-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 09/08/2023] [Indexed: 09/15/2023] Open
Abstract
High glucose-induced endothelial dysfunction is the early event that initiates diabetes-induced vascular disease. Here we employed Cryo Soft X-ray Tomography to obtain three-dimensional maps of high D-glucose-treated endothelial cells and their controls at nanometric spatial resolution. We then correlated ultrastructural differences with metabolic rewiring. While the total mitochondrial mass does not change, high D-glucose promotes mitochondrial fragmentation, as confirmed by the modulation of fission-fusion markers, and dysfunction, as demonstrated by the drop of membrane potential, the decreased oxygen consumption and the increased production of reactive oxygen species. The 3D ultrastructural analysis also indicates the accumulation of lipid droplets in cells cultured in high D-glucose. Indeed, because of the decrease of fatty acid β-oxidation induced by high D-glucose concentration, triglycerides are esterified into fatty acids and then stored into lipid droplets. We propose that the increase of lipid droplets represents an adaptive mechanism to cope with the overload of glucose and associated oxidative stress and metabolic dysregulation.
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Affiliation(s)
- Roberta Scrimieri
- Department of Biomedical and Clinical Sciences, Università degli Studi di Milano, 20157, Milan, Italy.
| | - Laura Locatelli
- Department of Biomedical and Clinical Sciences, Università degli Studi di Milano, 20157, Milan, Italy
| | - Alessandra Cazzaniga
- Department of Biomedical and Clinical Sciences, Università degli Studi di Milano, 20157, Milan, Italy
| | - Roberta Cazzola
- Department of Biomedical and Clinical Sciences, Università degli Studi di Milano, 20157, Milan, Italy
| | - Emil Malucelli
- Department of Pharmacy and Biotechnology, Università di Bologna, 40127, Bologna, Italy
| | - Andrea Sorrentino
- Mistral Beamline, ALBA Synchrotron Light Source, Cerdanyola del Valles, 08290, Barcelona, Spain
| | - Stefano Iotti
- Department of Pharmacy and Biotechnology, Università di Bologna, 40127, Bologna, Italy
- National Institute of Biostructures and Biosystems, Viale Delle Medaglie d'Oro 305, 00136, Rome, Italy
| | - Jeanette A Maier
- Department of Biomedical and Clinical Sciences, Università degli Studi di Milano, 20157, Milan, Italy.
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13
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Sharma C, Samanta A, Schmidt RS, Walther A. DNA-Based Signaling Networks for Transient Colloidal Co-Assemblies. J Am Chem Soc 2023; 145:17819-17830. [PMID: 37543962 DOI: 10.1021/jacs.3c04807] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/08/2023]
Abstract
Programmable chemical circuits inspired by signaling networks in living cells are a promising approach for the development of adaptive and autonomous self-assembling molecular systems and material functions. Progress has been made at the molecular level, but connecting molecular control circuits to self-assembling larger elements such as colloids that enable real-space studies and access to functional materials is sparse and can suffer from kinetic traps, flocculation, or difficult system integration protocols. Herein, we report a toehold-mediated DNA strand displacement reaction network capable of autonomously directing two different microgels into transient and self-regulating co-assemblies. The microgels are functionalized with DNA and become elemental components of the network. The flexibility of the circuit design allows the installation of delay phases or accelerators by chaining additional circuit modules upstream or downstream of the core circuit. The design provides an adaptable and robust route to regulate other building blocks for advanced biomimetic functions.
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Affiliation(s)
- Charu Sharma
- Life-Like Materials and Systems, Department of Chemistry, University of Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Avik Samanta
- Life-Like Materials and Systems, Department of Chemistry, University of Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Ricarda Sophia Schmidt
- Life-Like Materials and Systems, Department of Chemistry, University of Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Andreas Walther
- Life-Like Materials and Systems, Department of Chemistry, University of Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
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14
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Wu IC, Liou JW, Yang CH, Chen JH, Chen KY, Hung CH. Self-assembly of gelatin and collagen in the polyvinyl alcohol substrate and its influence on cell adhesion, proliferation, shape, spreading and differentiation. Front Bioeng Biotechnol 2023; 11:1193849. [PMID: 37520293 PMCID: PMC10375239 DOI: 10.3389/fbioe.2023.1193849] [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: 03/25/2023] [Accepted: 07/03/2023] [Indexed: 08/01/2023] Open
Abstract
Culture substrates display profound influence on biological and developmental characteristic of cells cultured in vitro. This study investigates the influence of polyvinyl alcohol (PVA) substrates blended with different concentration of collagen or/and gelatin on the cell adhesion, proliferation, shape, spreading, and differentiation of stem cells. The collagen/gelatin blended PVA substrates were prepared by air drying. During drying, blended collagen or/and gelatin can self-assemble into macro-scale nucleated particles or branched fibrils in the PVA substrates that can be observed under the optical microscope. These collagen/gelatin blended substrates revealed different surface topography, z-average, roughness, surface adhesion and Young's modulus as examined by the atomic force microscope (AFM). The results of Fourier transform infrared spectroscopy (FTIR) analysis indicated that the absorption of amide I (1,600-1,700 cm-1) and amide II (1,500-1,600 cm-1) groups increased with increasing collagen and gelatin concentration blended and the potential of fibril formation. These collagen or/and gelatin blended PVA substrates showed enhanced NIH-3T3 fibroblast adhesion as comparing with the pure PVA, control tissue culture polystyrene, conventional collagen-coated and gelatin-coated wells. These highly adhesive PVA substrates also exhibit inhibited cell spreading and proliferation. It is also found that the shape of NIH-3T3 fibroblasts can be switched between oval, spindle and flattened shapes depending on the concentration of collagen or/and gelatin blended. For inductive differentiation of stem cells, it is found that number and ration of neural differentiation of rat cerebral cortical neural stem cells increase with the decreasing collagen concentration in the collagen-blended PVA substrates. Moreover, the PVA substrates blended with collagen or collagen and gelatin can efficiently support and conduct human pluripotent stem cells to differentiate into Oil-Red-O- and UCP-1-positive brown-adipocyte-like cells via ectodermal lineage without the addition of mitogenic factors. These results provide a useful and alternative platform for controlling cell behavior in vitro and may be helpful for future application in the field of regenerative medicine and tissue engineering.
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Affiliation(s)
- I-Chi Wu
- Institute of Medical Sciences, Tzu Chi University, Hualien City, Taiwan
- Plastic Surgery Division, Surgical Department, Hualien Armed Forces General Hospital, Hualien City, Taiwan
| | - Je-Wen Liou
- Institute of Medical Sciences, Tzu Chi University, Hualien City, Taiwan
- Department of Biochemistry, School of Medicine, Tzu Chi University, Hualien City, Taiwan
| | - Chin-Hao Yang
- Department of Biochemistry, School of Medicine, Tzu Chi University, Hualien City, Taiwan
| | - Jia-Hui Chen
- Institute of Medical Sciences, Tzu Chi University, Hualien City, Taiwan
- Department of Surgery, Taipei Tzu Chi Hospital, New Taipei City, Taiwan
| | - Kuan-Yu Chen
- Institute of Medical Sciences, Tzu Chi University, Hualien City, Taiwan
- Department of Surgery, New Taipei City Hospital, New Taipei City, Taiwan
| | - Chih-Huang Hung
- Institute of Medical Sciences, Tzu Chi University, Hualien City, Taiwan
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15
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Trueman RP, Finn PG, Westwood MM, Dey A, Palgrave R, Tabor A, Phillips JB, Schroeder BC. Improving the biological interfacing capability of diketopyrrolopyrrole polymers via p-type doping. JOURNAL OF MATERIALS CHEMISTRY. C 2023; 11:6943-6950. [PMID: 37274026 PMCID: PMC10233798 DOI: 10.1039/d3tc01148h] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 05/10/2023] [Indexed: 06/06/2023]
Abstract
Polydiketopyrrolopyrrole terthiophene (DPP3T) is an organic semiconducting polymer that has been widely investigated as the active layer within organic electronic devices, such as photovoltaics and bioelectronic sensors. To facilitate interfacing between biological systems and organic semiconductors it is crucial to tune the material properties to support not only cell adhesion, but also proliferation and growth. Herein, we highlight the potential of molecular doping to judiciously modulate the surface properties of DPP3T and investigate the effects on Schwann cell behaviour on the surface. By using p-type dopants FeCl3 and Magic Blue, we successfully alter the topography of DPP3T thin films, which in turn alters cell behaviour of a Schwann cell line on the surfaces of the films over the course of 48 hours. Cell numbers are significantly increased within both DPP3T doped films, as well as cells possessing larger, more spread out morphology indicated by cell size and shape analysis. Furthermore, the viability of the Schwann cells seeded on the surfaces of the films was not significantly lowered. The use of dopants for influencing cell behaviour on semiconducting polymers holds great promise for improving the cell-device interface, potentially allowing better integration of cells and devices at the initial time of introduction to a biological environment.
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Affiliation(s)
- Ryan P Trueman
- Center for Nerve Engineering, UCL London UK
- Department of Pharmacology, UCL School of Pharmacy, University College London London UK
- Department of Chemistry, University College London London UK
| | | | | | - Avishek Dey
- Department of Chemistry, University College London London UK
| | - Robert Palgrave
- Department of Chemistry, University College London London UK
| | - Alethea Tabor
- Department of Chemistry, University College London London UK
| | - James B Phillips
- Center for Nerve Engineering, UCL London UK
- Department of Pharmacology, UCL School of Pharmacy, University College London London UK
| | - Bob C Schroeder
- Department of Chemistry, University College London London UK
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16
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Liu J, Li P, Sun J, Guo J. LPAD: using network construction and label propagation to detect topologically associating domains from Hi-C data. Brief Bioinform 2023; 24:7150739. [PMID: 37139561 DOI: 10.1093/bib/bbad165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 03/06/2023] [Accepted: 04/09/2023] [Indexed: 05/05/2023] Open
Abstract
With the development of chromosome conformation capture technique, the study of spatial conformation of a genome based on Hi-C technique has made a quantum leap. Previous studies reveal that genomes are folded into hierarchy of three-dimensional (3D) structures associated with topologically associating domains (TADs), and detecting TAD boundaries is of great significance in the chromosome-level analysis of 3D genome architecture. In this paper, we propose a novel TAD identification method, LPAD, which first extracts node correlations from global interactions of chromosomes based on the random walk with restart and then builds an undirected graph from Hi-C contact matrix. Next, LPAD designs a label propagation-based approach to discover communities and generates TADs. Experimental results verify the effectiveness and quality of TAD detections compared with existing methods. Furthermore, experimental evaluation of chromatin immunoprecipitation sequencing data shows that LPAD performs high enrichment of histone modifications remarkably nearby the TAD boundaries, and these results demonstrate LPAD's advantages on TAD identification accuracy.
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Affiliation(s)
- Jian Liu
- College of Computer Science, Nankai University, Tianjin 300071, China
| | - Pingjing Li
- College of Computer Science, Nankai University, Tianjin 300071, China
| | - Jialiang Sun
- College of Computer Science, Nankai University, Tianjin 300071, China
- Centre for Bioinformatics and Intelligent Medicine, Nankai University, Tianjin 300071, China
| | - Jun Guo
- College of Software, Northeastern University, Shenyang 110819, China
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17
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Qing Y, Xiang X, Li S, Wang M, Liang Z, Ren J. Integrated evaluation the antioxidant activity of epicatechin from cell dynamics. Biotechnol Prog 2023; 39:e3328. [PMID: 36700726 DOI: 10.1002/btpr.3328] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 01/17/2023] [Accepted: 01/23/2023] [Indexed: 01/27/2023]
Abstract
Oxidative damage has been implicated in the pathogenesis of numerous disorders by affecting the normal functions of several tissues. Further, oxidative stress acts within cells to influence cell morphology and the behavior of cell migration. The movement and migration of cells are crucial during the development of organisms as they transition from embryo to adult, and for the homeostasis of adult tissues. Epicatechin (EC) is a natural flavonoid derived mostly from tea, chocolate, and red wine. We investigated the protective impact of EC on D-galactose(D-gal)/rotenone-injured NIH3T3 cells and found alterations in cell dynamics throughout the procedure. The results reveal that D-gal/rotenone stimulation can cause the cell area to expand and the number of cellular protrusions to increase. EC intervention can considerably minimize the oxidative damage of rotenone on NIH3T3 cells (p < 0.05) but showed little influence on cell damage induced by D-gal. Furthermore, the corrective ability of EC as an antioxidant is reflected in a dose-dependent effect on cell movement, including variations in movement speed and distance. Overall, from the perspective of cell morphology and cell motility, EC has a good protective impact on cells harmed by rotenone induced oxidative damage, as well as corrective properties as an antioxidant to balance intracellular oxidative stress, which allowing for a more comprehensive evaluation of antioxidant performance of EC.
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Affiliation(s)
- Yinglu Qing
- School of Food Science and Engineering, South China University of Technology, Guangzhou, China
| | - Xiong Xiang
- School of Food Science and Engineering, South China University of Technology, Guangzhou, China
| | - Shan Li
- School of Food Science and Engineering, South China University of Technology, Guangzhou, China
| | - Min Wang
- School of Food Science and Engineering, South China University of Technology, Guangzhou, China
| | - Zhengyang Liang
- School of Food Science and Engineering, South China University of Technology, Guangzhou, China
| | - Jiaoyan Ren
- School of Food Science and Engineering, South China University of Technology, Guangzhou, China
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18
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Zhou FY, Weems A, Gihana GM, Chen B, Chang BJ, Driscoll M, Danuser G. Surface-guided computing to analyze subcellular morphology and membrane-associated signals in 3D. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.04.12.536640. [PMID: 37131779 PMCID: PMC10153113 DOI: 10.1101/2023.04.12.536640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Signal transduction and cell function are governed by the spatiotemporal organization of membrane-associated molecules. Despite significant advances in visualizing molecular distributions by 3D light microscopy, cell biologists still have limited quantitative understanding of the processes implicated in the regulation of molecular signals at the whole cell scale. In particular, complex and transient cell surface morphologies challenge the complete sampling of cell geometry, membrane-associated molecular concentration and activity and the computing of meaningful parameters such as the cofluctuation between morphology and signals. Here, we introduce u-Unwrap3D, a framework to remap arbitrarily complex 3D cell surfaces and membrane-associated signals into equivalent lower dimensional representations. The mappings are bidirectional, allowing the application of image processing operations in the data representation best suited for the task and to subsequently present the results in any of the other representations, including the original 3D cell surface. Leveraging this surface-guided computing paradigm, we track segmented surface motifs in 2D to quantify the recruitment of Septin polymers by blebbing events; we quantify actin enrichment in peripheral ruffles; and we measure the speed of ruffle movement along topographically complex cell surfaces. Thus, u-Unwrap3D provides access to spatiotemporal analyses of cell biological parameters on unconstrained 3D surface geometries and signals.
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Affiliation(s)
- Felix Y. Zhou
- Lyda Hill Department of Bioinformatics, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Cecil H. & Ida Green Center for System Biology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Andrew Weems
- Lyda Hill Department of Bioinformatics, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Cecil H. & Ida Green Center for System Biology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Gabriel M. Gihana
- Lyda Hill Department of Bioinformatics, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Cecil H. & Ida Green Center for System Biology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Bingying Chen
- Lyda Hill Department of Bioinformatics, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Cecil H. & Ida Green Center for System Biology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Bo-Jui Chang
- Lyda Hill Department of Bioinformatics, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Cecil H. & Ida Green Center for System Biology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Meghan Driscoll
- Lyda Hill Department of Bioinformatics, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Cecil H. & Ida Green Center for System Biology, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Current address: Department of Pharmacology, University of Minnesota, Minneapolis, MN, USA
| | - Gaudenz Danuser
- Lyda Hill Department of Bioinformatics, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Cecil H. & Ida Green Center for System Biology, University of Texas Southwestern Medical Center, Dallas, TX, USA
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19
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Cai F, Ren Y, Dai J, Yang J, Shi X. Effects of Various Cell Surface Engineering Reactions on the Biological Behavior of Mammalian Cells. Macromol Biosci 2023; 23:e2200379. [PMID: 36579789 DOI: 10.1002/mabi.202200379] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 12/15/2022] [Indexed: 12/30/2022]
Abstract
Cell surface engineering technologies can regulate cell function and behavior by modifying the cell surface. Previous studies have mainly focused on investigating the effects of cell surface engineering reactions and materials on cell activity. However, they do not comprehensively analyze other cellular processes. This study exploits covalent bonding, hydrophobic interactions, and electrostatic interactions to modify the macromolecules succinimide ester-methoxy polyethylene glycol (NHS-mPEG), distearoyl phosphoethanolamine-methoxy polyethylene glycol (DSPE-mPEG), and poly-L-lysine (PLL), respectively, on the cell surface. This work systematically investigates the effects of the three surface engineering reactions on the behavior of human umbilical vein endothelial cells (HUVECs) and human skin fibroblasts, including viability, growth, proliferation, cell cycle, adhesion, and migration. The results reveals that the PLL modification method notably affects cell viability and G2/M arrest and has a short modification duration. However, the DSPE-mPEG and NHS-mPEG modification methods have little effect on cell viability and proliferation but have a prolonged modification duration. Moreover, the DSPE-mPEG modification method highly affects cell adherence. Further, the NHS-mPEG modification method can significantly improve the migration ability of HUVECs by reducing the area of focal adhesions. The findings of this study will contribute to the application of cell surface engineering technology in the biomedical field.
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Affiliation(s)
- Fengying Cai
- College of Biological Science and Engineering, Fuzhou University, No. 2 Xueyuan Road, Fuzhou, 350108, China
| | - Yafeng Ren
- College of Biological Science and Engineering, Fuzhou University, No. 2 Xueyuan Road, Fuzhou, 350108, China
| | - Jiajia Dai
- College of Biological Science and Engineering, Fuzhou University, No. 2 Xueyuan Road, Fuzhou, 350108, China
| | - Jianmin Yang
- College of Biological Science and Engineering, Fuzhou University, No. 2 Xueyuan Road, Fuzhou, 350108, China.,Fujian Key Laboratory of Medical Instrument and Pharmaceutical Technology, Fuzhou University, No. 2 Xueyuan Road, Fuzhou, 350108, China
| | - Xianai Shi
- College of Biological Science and Engineering, Fuzhou University, No. 2 Xueyuan Road, Fuzhou, 350108, China.,Fujian Key Laboratory of Medical Instrument and Pharmaceutical Technology, Fuzhou University, No. 2 Xueyuan Road, Fuzhou, 350108, China
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20
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Xiang X, Kwame AW, Qing Y, Li S, Wang M, Ren J. Natural antioxidants inhibit oxidative stress-induced changes in the morphology and motility of cells. FOOD BIOSCI 2023. [DOI: 10.1016/j.fbio.2023.102442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
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21
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Xiang X, Qing Y, Li S, Kwame AW, Wang M, Ren J. The study of single‐cell dynamics contributes to the evaluation of food‐derived antioxidant capacity. EFOOD 2023. [DOI: 10.1002/efd2.66] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023] Open
Affiliation(s)
- Xiong Xiang
- School of Food Science and Engineering South China University of Technology Guangzhou Guangdong China
| | - Yinglu Qing
- School of Food Science and Engineering South China University of Technology Guangzhou Guangdong China
| | - Shan Li
- School of Food Science and Engineering South China University of Technology Guangzhou Guangdong China
| | - Amakye W. Kwame
- School of Food Science and Engineering South China University of Technology Guangzhou Guangdong China
| | - Min Wang
- School of Food Science and Engineering South China University of Technology Guangzhou Guangdong China
| | - Jiaoyan Ren
- School of Food Science and Engineering South China University of Technology Guangzhou Guangdong China
- Research Institute for Food Nutrition and Human Health Guangzhou Guangdong China
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22
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Li JH, Trivedi V, Diz-Muñoz A. Understanding the interplay of membrane trafficking, cell surface mechanics, and stem cell differentiation. Semin Cell Dev Biol 2023; 133:123-134. [PMID: 35641408 PMCID: PMC9703995 DOI: 10.1016/j.semcdb.2022.05.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 04/08/2022] [Accepted: 05/14/2022] [Indexed: 01/17/2023]
Abstract
Stem cells can generate a diversity of cell types during development, regeneration and adult tissue homeostasis. Differentiation changes not only the cell fate in terms of gene expression but also the physical properties and functions of cells, e.g. the secretory activity, cell shape, or mechanics. Conversely, these activities and properties can also regulate differentiation itself. Membrane trafficking is known to modulate signal transduction and thus has the potential to control stem cell differentiation. On the other hand, membrane trafficking, particularly from and to the plasma membrane, depends on the mechanical properties of the cell surface such as tension within the plasma membrane or the cortex. Indeed, recent findings demonstrate that cell surface mechanics can also control cell fate. Here, we review the bidirectional relationships between these three fundamental cellular functions, i.e. membrane trafficking, cell surface mechanics, and stem cell differentiation. Furthermore, we discuss commonly used methods in each field and how combining them with new tools will enhance our understanding of their interplay. Understanding how membrane trafficking and cell surface mechanics can guide stem cell fate holds great potential as these concepts could be exploited for directed differentiation of stem cells for the fields of tissue engineering and regenerative medicine.
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Affiliation(s)
- Jia Hui Li
- Cell Biology and Biophysics Unit, European Molecular Biology Laboratory (EMBL), Meyerhofstraße 1, Heidelberg 69117, Germany
| | - Vikas Trivedi
- EMBL, PRBB, Dr. Aiguader, 88, Barcelona 08003, Spain,Developmental Biology Unit, EMBL, Meyerhofstraße 1, Heidelberg 69117, Germany
| | - Alba Diz-Muñoz
- Cell Biology and Biophysics Unit, European Molecular Biology Laboratory (EMBL), Meyerhofstraße 1, Heidelberg 69117, Germany.
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23
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Alamán‐Díez P, García‐Gareta E, Arruebo M, Pérez MÁ. A bone-on-a-chip collagen hydrogel-based model using pre-differentiated adipose-derived stem cells for personalized bone tissue engineering. J Biomed Mater Res A 2023; 111:88-105. [PMID: 36205241 PMCID: PMC9828068 DOI: 10.1002/jbm.a.37448] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 08/24/2022] [Accepted: 09/13/2022] [Indexed: 01/12/2023]
Abstract
Mesenchymal stem cells have contributed to the continuous progress of tissue engineering and regenerative medicine. Adipose-derived stem cells (ADSC) possess many advantages compared to other origins including easy tissue harvesting, self-renewal potential, and fast population doubling time. As multipotent cells, they can differentiate into osteoblastic cell linages. In vitro bone models are needed to carry out an initial safety assessment in the study of novel bone regeneration therapies. We hypothesized that 3D bone-on-a-chip models containing ADSC could closely recreate the physiological bone microenvironment and promote differentiation. They represent an intermedium step between traditional 2D-in vitro and in vivo experiments facilitating the screening of therapeutic molecules while saving resources. Herein, we have differentiated ADSC for 7 and 14 days and used them to fabricate in vitro bone models by embedding the pre-differentiated cells in a 3D collagen matrix placed in a microfluidic chip. Osteogenic markers such as alkaline phosphatase activity, calcium mineralization, changes on cell morphology, and expression of specific proteins (bone sialoprotein 2, dentin matrix acidic phosphoprotein-1, and osteocalcin) were evaluated to determine cell differentiation potential and evolution. This is the first miniaturized 3D-in vitro bone model created from pre-differentiated ADSC embedded in a hydrogel collagen matrix which could be used for personalized bone tissue engineering.
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Affiliation(s)
- Pilar Alamán‐Díez
- Multiscale in Mechanical and Biological Engineering, Aragón Institute of Engineering Research (I3A), Aragón Institute of Healthcare Research (IIS Aragón)University of ZaragozaZaragozaSpain
| | - Elena García‐Gareta
- Multiscale in Mechanical and Biological Engineering, Aragón Institute of Engineering Research (I3A), Aragón Institute of Healthcare Research (IIS Aragón)University of ZaragozaZaragozaSpain,Division of Biomaterials and Tissue Engineering, UCL Eastman Dental InstituteUniversity College LondonLondonUK
| | - Manuel Arruebo
- Aragón Institute of Nanoscience and Materials (INMA), Consejo Superior de Investigaciones Científicas (CSIC)University of ZaragozaZaragozaSpain,Department of Chemical EngineeringUniversity of ZaragozaZaragozaSpain
| | - María Ángeles Pérez
- Multiscale in Mechanical and Biological Engineering, Aragón Institute of Engineering Research (I3A), Aragón Institute of Healthcare Research (IIS Aragón)University of ZaragozaZaragozaSpain
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24
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Selig M, Azizi S, Walz K, Lauer JC, Rolauffs B, Hart ML. Cell morphology as a biological fingerprint of chondrocyte phenotype in control and inflammatory conditions. Front Immunol 2023; 14:1102912. [PMID: 36860844 PMCID: PMC9968733 DOI: 10.3389/fimmu.2023.1102912] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Accepted: 01/30/2023] [Indexed: 02/16/2023] Open
Abstract
Introduction Little is known how inflammatory processes quantitatively affect chondrocyte morphology and how single cell morphometric data could be used as a biological fingerprint of phenotype. Methods We investigated whether trainable high-throughput quantitative single cell morphology profiling combined with population-based gene expression analysis can be used to identify biological fingerprints that are discriminatory of control vs. inflammatory phenotypes. The shape of a large number of chondrocytes isolated from bovine healthy and human osteoarthritic (OA) cartilages was quantified under control and inflammatory (IL-1β) conditions using a trainable image analysis technique measuring a panel of cell shape descriptors (area, length, width, circularity, aspect ratio, roundness, solidity). The expression profiles of phenotypically relevant markers were quantified by ddPCR. Statistical analysis, multivariate data exploration, and projection-based modelling were used for identifying specific morphological fingerprints indicative of phenotype. Results Cell morphology was sensitive to both cell density and IL-1β. In both cell types, all shape descriptors correlated with expression of extracellular matrix (ECM)- and inflammatory-regulating genes. A hierarchical clustered image map revealed that individual samples sometimes responded differently in control or IL-1β conditions than the overall population. Despite these variances, discriminative projection-based modeling revealed distinct morphological fingerprints that discriminated between control and inflammatory chondrocyte phenotypes: the most essential morphological characteristics attributable to non-treated control cells was a higher cell aspect ratio in healthy bovine chondrocytes and roundness in OA human chondrocytes. In contrast, a higher circularity and width in healthy bovine chondrocytes and length and area in OA human chondrocytes indicated an inflammatory (IL-1β) phenotype. When comparing the two species/health conditions, bovine healthy and human OA chondrocytes exhibited comparable IL-1β-induced morphologies in roundness, a widely recognized marker of chondrocyte phenotype, and aspect ratio. Discussion Overall, cell morphology can be used as a biological fingerprint for describing chondrocyte phenotype. Quantitative single cell morphometry in conjunction with advanced methods for multivariate data analysis allows identifying morphological fingerprints that can discriminate between control and inflammatory chondrocyte phenotypes. This approach could be used to assess how culture conditions, inflammatory mediators, and therapeutic modulators regulate cell phenotype and function.
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Affiliation(s)
- Mischa Selig
- G.E.R.N. Research Center for Tissue Replacement, Regeneration & Neogenesis, Department of Orthopedics and Trauma Surgery, Faculty of Medicine, Medical Center-Albert-Ludwigs-University of Freiburg, Freiburg im Breisgau, Germany.,Faculty of Biology, University of Freiburg, Freiburg im Breisgau, Germany
| | - Saman Azizi
- G.E.R.N. Research Center for Tissue Replacement, Regeneration & Neogenesis, Department of Orthopedics and Trauma Surgery, Faculty of Medicine, Medical Center-Albert-Ludwigs-University of Freiburg, Freiburg im Breisgau, Germany
| | - Kathrin Walz
- G.E.R.N. Research Center for Tissue Replacement, Regeneration & Neogenesis, Department of Orthopedics and Trauma Surgery, Faculty of Medicine, Medical Center-Albert-Ludwigs-University of Freiburg, Freiburg im Breisgau, Germany
| | - Jasmin C Lauer
- G.E.R.N. Research Center for Tissue Replacement, Regeneration & Neogenesis, Department of Orthopedics and Trauma Surgery, Faculty of Medicine, Medical Center-Albert-Ludwigs-University of Freiburg, Freiburg im Breisgau, Germany.,Faculty of Biology, University of Freiburg, Freiburg im Breisgau, Germany
| | - Bernd Rolauffs
- G.E.R.N. Research Center for Tissue Replacement, Regeneration & Neogenesis, Department of Orthopedics and Trauma Surgery, Faculty of Medicine, Medical Center-Albert-Ludwigs-University of Freiburg, Freiburg im Breisgau, Germany
| | - Melanie L Hart
- G.E.R.N. Research Center for Tissue Replacement, Regeneration & Neogenesis, Department of Orthopedics and Trauma Surgery, Faculty of Medicine, Medical Center-Albert-Ludwigs-University of Freiburg, Freiburg im Breisgau, Germany
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25
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Moxon SR, Richards D, Dobre O, Wong LS, Swift J, Richardson SM. Regulation of Mesenchymal Stem Cell Morphology Using Hydrogel Substrates with Tunable Topography and Photoswitchable Stiffness. Polymers (Basel) 2022; 14:polym14245338. [PMID: 36559706 PMCID: PMC9788018 DOI: 10.3390/polym14245338] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/02/2022] [Accepted: 12/02/2022] [Indexed: 12/12/2022] Open
Abstract
Cell function can be directly influenced by the mechanical and structural properties of the extracellular environment. In particular, cell morphology and phenotype can be regulated via the modulation of both the stiffness and surface topography of cell culture substrates. Previous studies have highlighted the ability to design cell culture substrates to optimise cell function. Many such examples, however, employ photo-crosslinkable polymers with a terminal stiffness or surface profile. This study presents a system of polyacrylamide hydrogels, where the surface topography can be tailored and the matrix stiffness can be altered in situ with photoirradiation. The process allows for the temporal regulation of the extracellular environment. Specifically, the surface topography can be tailored via reticulation parameters to include creased features with control over the periodicity, length and branching. The matrix stiffness can also be dynamically tuned via exposure to an appropriate dosage and wavelength of light, thus, allowing for the temporal regulation of the extracellular environment. When cultured on the surface of the hydrogels, the morphology and alignment of immortalised human mesenchymal stem cells can be directly influenced through the tailoring of surface creases, while cell size can be altered via changes in matrix stiffness. This system offers a new platform to study cellular mechanosensing and the influence of extracellular cues on cell phenotype and function.
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Affiliation(s)
- Samuel R. Moxon
- Division of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester M13 9PL, UK
- The Henry Royce Institute, University of Manchester, Manchester M13 9PL, UK
| | - David Richards
- Division of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester M13 9PL, UK
| | - Oana Dobre
- Centre for the Cellular Microenvironment, Advanced Research Centre, University of Glasgow, Glasgow G12 8LT, UK
| | - Lu Shin Wong
- Manchester Institute of Biotechnology and School of Chemistry, University of Manchester, 131 Princess Street, Manchester M1 7DN, UK
- Correspondence: (L.S.W.); (J.S.); (S.M.R.)
| | - Joe Swift
- Division of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester M13 9PL, UK
- Wellcome Centre for Cell-Matrix Research, University of Manchester, Oxford Road, Manchester M13 9PT, UK
- Correspondence: (L.S.W.); (J.S.); (S.M.R.)
| | - Stephen M. Richardson
- Division of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester M13 9PL, UK
- Correspondence: (L.S.W.); (J.S.); (S.M.R.)
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26
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Baručić D, Kaushik S, Kybic J, Stanková J, Džubák P, Hajdúch M. Characterization of drug effects on cell cultures from phase-contrast microscopy images. Comput Biol Med 2022; 151:106171. [PMID: 36306582 DOI: 10.1016/j.compbiomed.2022.106171] [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: 05/26/2022] [Revised: 08/30/2022] [Accepted: 10/01/2022] [Indexed: 12/27/2022]
Abstract
In this work, we classify chemotherapeutic agents (topoisomerase inhibitors) based on their effect on U-2 OS cells. We use phase-contrast microscopy images, which are faster and easier to obtain than fluorescence images and support live cell imaging. We use a convolutional neural network (CNN) trained end-to-end directly on the input images without requiring for manual segmentations or any other auxiliary data. Our method can distinguish between tested cytotoxic drugs with an accuracy of 98%, provided that their mechanism of action differs, outperforming previous work. The results are even better when substance-specific concentrations are used. We show the benefit of sharing the extracted features over all classes (drugs). Finally, a 2D visualization of these features reveals clusters, which correspond well to known class labels, suggesting the possible use of our methodology for drug discovery application in analyzing new, unseen drugs.
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Affiliation(s)
- Denis Baručić
- Faculty of Electrical Engineering, Czech Technical University in Prague, Prague, Czech Republic.
| | - Sumit Kaushik
- Faculty of Electrical Engineering, Czech Technical University in Prague, Prague, Czech Republic.
| | - Jan Kybic
- Faculty of Electrical Engineering, Czech Technical University in Prague, Prague, Czech Republic.
| | - Jarmila Stanková
- Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Petr Džubák
- Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Marián Hajdúch
- Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
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27
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Alderfer S, Sun J, Tahtamouni L, Prasad A. Morphological signatures of actin organization in single cells accurately classify genetic perturbations using CNNs with transfer learning. SOFT MATTER 2022; 18:8342-8354. [PMID: 36222484 DOI: 10.1039/d2sm01000c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The actin cytoskeleton plays essential roles in countless cell processes, from cell division to migration to signaling. In cancer cells, cytoskeletal dynamics, cytoskeletal filament organization, and overall cell morphology are known to be altered substantially. We hypothesize that actin fiber organization and cell shape may carry specific signatures of genetic or signaling perturbations. We used convolutional neural networks (CNNs) on a small fluorescence microscopy image dataset of retinal pigment epithelial (RPE) cells and triple-negative breast cancer (TNBC) cells for identifying morphological signatures in cancer cells. Using a transfer learning approach, CNNs could be trained to accurately distinguish between normal and oncogenically transformed RPE cells with an accuracy of about 95% or better at the single cell level. Furthermore, CNNs could distinguish transformed cell lines differing by an oncogenic mutation from each other and could also detect knockdown of cofilin in TNBC cells, indicating that each single oncogenic mutation or cytoskeletal perturbation produces a unique signature in actin morphology. Application of the Local Interpretable Model-Agnostic Explanations (LIME) method for visually interpreting the CNN results revealed features of the global actin structure relevant for some cells and classification tasks. Interestingly, many of these features were supported by previous biological observation. Actin fiber organization is thus a sensitive marker for cell identity, and identification of its perturbations could be very useful for assaying cell phenotypes, including disease states.
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Affiliation(s)
- Sydney Alderfer
- Department of Chemical and Biological Engineering, Colorado State University, Fort Collins, CO 80523, USA.
- School of Biomedical Engineering, Colorado State University, Fort Collins, CO 80523, USA
| | - Jiangyu Sun
- Department of Biochemistry and Molecular Biology, Colorado State University, Fort Collins, CO 80523, USA
| | - Lubna Tahtamouni
- Department of Biochemistry and Molecular Biology, Colorado State University, Fort Collins, CO 80523, USA
- Department of Biology and Biotechnology, The Hashemite University, Zarqa, Jordan
| | - Ashok Prasad
- Department of Chemical and Biological Engineering, Colorado State University, Fort Collins, CO 80523, USA.
- School of Biomedical Engineering, Colorado State University, Fort Collins, CO 80523, USA
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28
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A new method for reconstructing the 3D shape of single cells in fruit. Food Res Int 2022; 162:112017. [DOI: 10.1016/j.foodres.2022.112017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 09/26/2022] [Accepted: 09/28/2022] [Indexed: 11/15/2022]
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29
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Khalil K, Eon A, Janody F. Cell Architecture-Dependent Constraints: Critical Safeguards to Carcinogenesis. Int J Mol Sci 2022; 23:8622. [PMID: 35955754 PMCID: PMC9369145 DOI: 10.3390/ijms23158622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 07/29/2022] [Accepted: 07/30/2022] [Indexed: 02/04/2023] Open
Abstract
Animal cells display great diversity in their shape. These morphological characteristics result from crosstalk between the plasma membrane and the force-generating capacities of the cytoskeleton macromolecules. Changes in cell shape are not merely byproducts of cell fate determinants, they also actively drive cell fate decisions, including proliferation and differentiation. Global and local changes in cell shape alter the transcriptional program by a multitude of mechanisms, including the regulation of physical links between the plasma membrane and the nuclear envelope and the mechanical modulation of cation channels and signalling molecules. It is therefore not surprising that anomalies in cell shape contribute to several diseases, including cancer. In this review, we discuss the possibility that the constraints imposed by cell shape determine the behaviour of normal and pro-tumour cells by organizing the whole interconnected regulatory network. In turn, cell behaviour might stabilize cells into discrete shapes. However, to progress towards a fully transformed phenotype and to acquire plasticity properties, pro-tumour cells might need to escape these cell shape restrictions. Thus, robust controls of the cell shape machinery may represent a critical safeguard against carcinogenesis.
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Affiliation(s)
- Komal Khalil
- i3S—Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal; (K.K.); (A.E.)
- IPATIMUP—Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal
- Master Programme in Oncology, School of Medicine & Biomedical Sciences, University of Porto (ICBAS-UP), Rua Jorge Viterbo Ferreira 228, 4050-513 Porto, Portugal
| | - Alice Eon
- i3S—Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal; (K.K.); (A.E.)
- IPATIMUP—Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal
- Magistère Européen de Génétique, Université Paris Cité, 5 Rue Thomas Mann, 75013 Paris, France
| | - Florence Janody
- i3S—Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal; (K.K.); (A.E.)
- IPATIMUP—Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal
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30
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Katayama T, Tanaka S, Tsuruoka T, Nagahama K. Two-Dimensional Metal-Organic Framework-Based Cellular Scaffolds with High Protein Adsorption, Retention, and Replenishment Capabilities. ACS APPLIED MATERIALS & INTERFACES 2022; 14:34443-34454. [PMID: 35857286 DOI: 10.1021/acsami.2c08677] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Metal-organic frameworks (MOFs) are porous materials with adsorption, storage, and separation capabilities due to their high specific surface areas and large pore volumes. MOFs are thus used in biomedical applications, and MOF nanoparticles have been widely studied as nanocarriers for drug delivery systems. Several research groups recently reported that specific MOF nanoparticles can adsorb and retain proteins, suggesting to us that MOF nanoparticles may have advantages as novel cell culture scaffolds. However, MOF nanoparticles cannot be used as two-dimensional scaffolds for cells. We therefore established a bottom-up technique to construct two-dimensional MOFs [MIL-53 (Al)] on polymer films. The developed two-dimensional MIL-53 (Al) film [fMIL-53 (Al)] exhibited high serum protein adsorption, retention, and replenishment capabilities as compared to conventional cell culture scaffolds. β-Galactosidase, used as a model protein, adsorbed on fMIL-53 (Al) exhibited original enzymatic activity, indicating that proteins are not denatured during the adsorption process. The viability of mouse myoblast cells (C2C12) cultured on fMIL-53 (Al) was 100%, indicating the cell compatibility of fMIL-53 (Al). Importantly, C2C12 cells cultured on serum protein-preadsorbed fMIL-53 (Al) exhibited excellent long-term adhesion, morphology, and proliferation even in a medium lacking serum proteins, demonstrating an important advantage of fMIL-53 (Al) as a cell culture scaffold, given that conventional cell culture scaffolds typically require a serum-containing medium to support stable cell adhesion and proliferation. To our knowledge, this is the first report regarding the application of MOFs as cell culture scaffolds and will serve as a starting point for studying two- and three-dimensional MOF-based cellular scaffolds for cell culture systems and for in vitro and in vivo tissue engineering.
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Affiliation(s)
- Tokitaka Katayama
- Department of Nanobiochemistry, Frontiers of Innovative Research in Science and Technology (FIRST), Konan University, 7-1-20 Minatojima-minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Shintaro Tanaka
- Department of Nanobiochemistry, Frontiers of Innovative Research in Science and Technology (FIRST), Konan University, 7-1-20 Minatojima-minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Takaaki Tsuruoka
- Department of Nanobiochemistry, Frontiers of Innovative Research in Science and Technology (FIRST), Konan University, 7-1-20 Minatojima-minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Koji Nagahama
- Department of Nanobiochemistry, Frontiers of Innovative Research in Science and Technology (FIRST), Konan University, 7-1-20 Minatojima-minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
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31
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Wu D, Zhao L, Sui B, Tan L, Lu L, Mao X, Liao G, Shi S, Cao Y, Yang X, Kou X. An Appearance Data-Driven Model Visualizes Cell State and Predicts Mesenchymal Stem Cell Regenerative Capacity. SMALL METHODS 2022; 6:e2200087. [PMID: 35674483 DOI: 10.1002/smtd.202200087] [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: 01/20/2022] [Revised: 04/14/2022] [Indexed: 06/15/2023]
Abstract
Mesenchymal stem cells (MSCs) are widely used in treating various diseases. However, lack of a reliable evaluation approach to characterize the potency of MSCs has dampened their clinical applications. Here, a function-oriented mathematical model is established to evaluate and predict the regenerative capacity (RC) of MSCs. Processed by exhaustive testing, the model excavates four optimal fitted indices, including nucleus roundness, nucleus/cytoplasm ratio, side-scatter height, and ERK1/2 from the given index combinations. Notably, three of them except ERK1/2 are cell appearance-associated features. The predictive power of the model is validated via screening experiments of these indices by predicting the RC of newly enrolled and chemical inhibitor-treated MSCs. Further RNA-sequencing analysis reveals that cell appearance-based indices may serve as major indicators to visualize the results of integration-weighted signals in and out of cells and reflect MSC stemness. In general, this study proposes an appearance data-driven predictive model for the RC and stemness of MSCs.
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Affiliation(s)
- Di Wu
- Hospital of Stomatology, Guanghua School of Stomatology, South China Center of Craniofacial Stem Cell Research, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, 510055, China
- Hospital of Stomatology, Guanghua School of Stomatology, Department of Oral and Maxillofacial Surgery, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, 510055, China
- Hospital of Stomatology, Guanghua School of Stomatology, Department of Orthodontics, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, 510055, China
| | - Lu Zhao
- Hospital of Stomatology, Guanghua School of Stomatology, South China Center of Craniofacial Stem Cell Research, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, 510055, China
| | - Bingdong Sui
- Hospital of Stomatology, Guanghua School of Stomatology, South China Center of Craniofacial Stem Cell Research, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, 510055, China
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Shaanxi International Joint Research Center for Oral Diseases, Center for Tissue Engineering, School of Stomatology, The Fourth Military Medical University, Xi'an, 710032, China
| | - Lingping Tan
- Hospital of Stomatology, Guanghua School of Stomatology, South China Center of Craniofacial Stem Cell Research, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, 510055, China
| | - Lu Lu
- Hospital of Stomatology, Guanghua School of Stomatology, South China Center of Craniofacial Stem Cell Research, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, 510055, China
| | - Xueli Mao
- Hospital of Stomatology, Guanghua School of Stomatology, South China Center of Craniofacial Stem Cell Research, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, 510055, China
| | - Guiqing Liao
- Hospital of Stomatology, Guanghua School of Stomatology, Department of Oral and Maxillofacial Surgery, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, 510055, China
| | - Songtao Shi
- Hospital of Stomatology, Guanghua School of Stomatology, South China Center of Craniofacial Stem Cell Research, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, 510055, China
- Key Laboratory of Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou, 510080, China
| | - Yang Cao
- Hospital of Stomatology, Guanghua School of Stomatology, Department of Orthodontics, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, 510055, China
| | - Xiaobao Yang
- School of Physics and Optoelectronics, South China University of Technology, Guangzhou, 510640, China
| | - Xiaoxing Kou
- Hospital of Stomatology, Guanghua School of Stomatology, South China Center of Craniofacial Stem Cell Research, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, 510055, China
- Key Laboratory of Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou, 510080, China
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32
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Haroon M, Bloks NGC, Deldicque L, Koppo K, Seddiqi H, Bakker AD, Klein-Nulend J, Jaspers RT. Fluid shear stress-induced mechanotransduction in myoblasts: Does it depend on the glycocalyx? Exp Cell Res 2022; 417:113204. [PMID: 35588795 DOI: 10.1016/j.yexcr.2022.113204] [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: 12/07/2021] [Revised: 04/29/2022] [Accepted: 05/08/2022] [Indexed: 11/17/2022]
Abstract
Muscle stem cells (MuSCs) are involved in muscle maintenance and regeneration. Mechanically loaded MuSCs within their native niche undergo tensile and shear deformations, but how MuSCs sense mechanical stimuli and translate these into biochemical signals regulating function and fate is still poorly understood. We aimed to investigate whether the glycocalyx is involved in the MuSC mechanoresponse, and whether MuSC morphology affects mechanical loading-induced pressure, shear stress, and fluid velocity distribution. FSS-induced deformation of active proliferating MuSCs (myoblasts) with intact or degraded glycocalyx was assessed by live-cell imaging. Glycocalyx-degradation did not significantly affect nitric oxide production, but reduced FSS-induced myoblast deformation and modulated gene expression. Finite-element analysis revealed that the distribution of FSS-induced pressure, shear stress, and fluid velocity on myoblasts was non-uniform, and the magnitude depended on myoblast morphology and apex-height. In conclusion, our results suggest that the glycocalyx does not play a role in NO production in myoblasts but might impact mechanotransduction and gene expression, which needs further investigation. Future studies will unravel the underlying mechanism by which the glycocalyx affects FSS-induced myoblast deformation, which might be related to increased drag forces. Moreover, MuSCs with varying apex-height experience different levels of FSS-induced pressure, shear stress, and fluid velocity, suggesting differential responsiveness to fluid shear forces.
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Affiliation(s)
- Mohammad Haroon
- Laboratory for Myology, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, the Netherlands.
| | - Niek G C Bloks
- Laboratory for Myology, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, the Netherlands.
| | - Louise Deldicque
- Institute of Neuroscience, Université catholique de Louvain, Louvain-la-Neuve, Belgium.
| | - Katrien Koppo
- Exercise Physiology Research Group, Department of Movement Sciences, KU Leuven, Leuven, Belgium.
| | - Hadi Seddiqi
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam, University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, the Netherlands.
| | - Astrid D Bakker
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam, University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, the Netherlands.
| | - Jenneke Klein-Nulend
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam, University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, the Netherlands.
| | - Richard T Jaspers
- Laboratory for Myology, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, the Netherlands.
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Titanium Surface Characteristics Induce the Specific Reprogramming of Toll-like Receptor Signaling in Macrophages. Int J Mol Sci 2022; 23:ijms23084285. [PMID: 35457102 PMCID: PMC9030374 DOI: 10.3390/ijms23084285] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/05/2022] [Accepted: 04/08/2022] [Indexed: 02/04/2023] Open
Abstract
Most of the research on titanium-based dental implants (Ti-discs) is focused on how they are able to stimulate the formation of new tissue and/or cytotoxic studies, with very scarce data on their effects on functional responses by immunocompetent cells. In particular, the link between the rewiring of innate immune responses and surface biomaterials properties is poorly understood. To address this, we characterize the functional response of macrophage cultures to four different dental titanium surfaces (MA: mechanical abrasion; SB + AE: sandblasting plus etching; SB: sandblasting; AE: acid etching). We use different Toll-like receptor (TLR) ligands towards cell surface receptors (bacterial lipopolysaccharide LPS for TLR4; imiquimod for TLR7; synthetic bacterial triacylated lipoprotein for TLR2/TLR1) and endosomal membrane receptor (poly I:C for TLR3) to simulate bacterial (cell wall bacterial components) or viral infections (dsRNA and ssRNA). The extracellular and total LDH levels indicate that exposure to the different Ti-surfaces is not cytotoxic for macrophages under resting or TLR-stimulated conditions, although there is a tendency towards an impairment in macrophage proliferation, viability or adhesion under TLR4, TLR3 and TLR2/1 stimulations in SB discs cultures. The secreted IL-6 and IL-10 levels are not modified upon resting macrophage exposure to the Ti-surfaces studied as well as steady state levels of iNos or ArgI mRNA. However, macrophage exposure to MA Ti-surface do display an enhanced immune response to TLR4, TLR7 or TLR2/1 compared to other Ti-surfaces in terms of soluble immune mediators secreted and M1/M2 gene expression profiling. This change of characteristics in cellular phenotype might be related to changes in cellular morphology. Remarkably, the gene expression of Tlr3 is the only TLR that is differentially affected by distinct Ti-surface exposure. These results highlight the relevance of patterned substrates in dental implants to achieve a smart manipulation of the immune responses in the context of personalized medicine, cell-based therapies, preferential lineage commitment of precursor cells or control of tissue architecture in oral biology.
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Pereira AR, Trivanović D, Stahlhut P, Rudert M, Groll J, Herrmann M. Preservation of the naïve features of mesenchymal stromal cells in vitro: Comparison of cell- and bone-derived decellularized extracellular matrix. J Tissue Eng 2022; 13:20417314221074453. [PMID: 35154631 PMCID: PMC8829705 DOI: 10.1177/20417314221074453] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 01/04/2022] [Indexed: 12/14/2022] Open
Abstract
The fate and behavior of bone marrow mesenchymal stem/stromal cells (BM-MSC) is bidirectionally influenced by their microenvironment, the stem cell niche, where a magnitude of biochemical and physical cues communicate in an extremely orchestrated way. It is known that simplified 2D in vitro systems for BM-MSC culture do not represent their naïve physiological environment. Here, we developed four different 2D cell-based decellularized matrices (dECM) and a 3D decellularized human trabecular-bone scaffold (dBone) to evaluate BM-MSC behavior. The obtained cell-derived matrices provided a reliable tool for cell shape-based analyses of typical features associated with osteogenic differentiation at high-throughput level. On the other hand, exploratory proteomics analysis identified native bone-specific proteins selectively expressed in dBone but not in dECM models. Together with its architectural complexity, the physico-chemical properties of dBone triggered the upregulation of stemness associated genes and niche-related protein expression, proving in vitro conservation of the naïve features of BM-MSC.
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Affiliation(s)
- Ana Rita Pereira
- IZKF Group Tissue Regeneration in Musculoskeletal Diseases, University Hospital Wuerzburg, Wuerzburg, Germany
- Bernhard-Heine-Centrum for Locomotion Research, University of Wuerzburg, Wuerzburg, Germany
| | - Drenka Trivanović
- IZKF Group Tissue Regeneration in Musculoskeletal Diseases, University Hospital Wuerzburg, Wuerzburg, Germany
- Bernhard-Heine-Centrum for Locomotion Research, University of Wuerzburg, Wuerzburg, Germany
| | - Philipp Stahlhut
- Chair for Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute, University of Wuerzburg, Wuerzburg, Germany
| | - Maximilian Rudert
- Department of Orthopedic Surgery, Koenig-Ludwig-Haus, University of Wuerzburg, Wuerzburg, Germany
| | - Jürgen Groll
- Chair for Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute, University of Wuerzburg, Wuerzburg, Germany
| | - Marietta Herrmann
- IZKF Group Tissue Regeneration in Musculoskeletal Diseases, University Hospital Wuerzburg, Wuerzburg, Germany
- Bernhard-Heine-Centrum for Locomotion Research, University of Wuerzburg, Wuerzburg, Germany
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35
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Lan Y, Huang N, Fu Y, Liu K, Zhang H, Li Y, Yang S. Morphology-Based Deep Learning Approach for Predicting Osteogenic Differentiation. Front Bioeng Biotechnol 2022; 9:802794. [PMID: 35155409 PMCID: PMC8830423 DOI: 10.3389/fbioe.2021.802794] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 12/30/2021] [Indexed: 02/03/2023] Open
Abstract
Early, high-throughput, and accurate recognition of osteogenic differentiation of stem cells is urgently required in stem cell therapy, tissue engineering, and regenerative medicine. In this study, we established an automatic deep learning algorithm, i.e., osteogenic convolutional neural network (OCNN), to quantitatively measure the osteogenic differentiation of rat bone marrow mesenchymal stem cells (rBMSCs). rBMSCs stained with F-actin and DAPI during early differentiation (day 0, 1, 4, and 7) were captured using laser confocal scanning microscopy to train OCNN. As a result, OCNN successfully distinguished differentiated cells at a very early stage (24 h) with a high area under the curve (AUC) (0.94 ± 0.04) and correlated with conventional biochemical markers. Meanwhile, OCNN exhibited better prediction performance compared with the single morphological parameters and support vector machine. Furthermore, OCNN successfully predicted the dose-dependent effects of small-molecule osteogenic drugs and a cytokine. OCNN-based online learning models can further recognize the osteogenic differentiation of rBMSCs cultured on several material surfaces. Hence, this study initially demonstrated the foreground of OCNN in osteogenic drug and biomaterial screening for next-generation tissue engineering and stem cell research.
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Affiliation(s)
- Yiqing Lan
- Stomatological Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Nannan Huang
- Stomatological Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Yiru Fu
- Stomatological Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Kehao Liu
- Stomatological Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - He Zhang
- Stomatological Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Yuzhou Li
- Stomatological Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
- *Correspondence: Yuzhou Li, ; Sheng Yang,
| | - Sheng Yang
- Stomatological Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
- *Correspondence: Yuzhou Li, ; Sheng Yang,
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36
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Perez-Leal O, Nixon-Abell J, Barrero CA, Gordon JC, Oesterling J, Rico MC. Multiplex Gene Tagging with CRISPR-Cas9 for Live-Cell Microscopy and Application to Study the Role of SARS-CoV-2 Proteins in Autophagy, Mitochondrial Dynamics, and Cell Growth. CRISPR J 2021; 4:854-871. [PMID: 34847745 PMCID: PMC8742308 DOI: 10.1089/crispr.2021.0041] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
The lack of efficient tools to label multiple endogenous targets in cell lines without staining or fixation has limited our ability to track physiological and pathological changes in cells over time via live-cell studies. Here, we outline the FAST-HDR vector system to be used in combination with CRISPR-Cas9 to allow visual live-cell studies of up to three endogenous proteins within the same cell line. Our approach utilizes a novel set of advanced donor plasmids for homology-directed repair and a streamlined workflow optimized for microscopy-based cell screening to create genetically modified cell lines that do not require staining or fixation to accommodate microscopy-based studies. We validated this new methodology by developing two advanced cell lines with three fluorescent-labeled endogenous proteins that support high-content imaging without using antibodies or exogenous staining. We applied this technology to study seven severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2/COVID-19) viral proteins to understand better their effects on autophagy, mitochondrial dynamics, and cell growth. Using these two cell lines, we were able to identify the protein ORF3a successfully as a potent inhibitor of autophagy, inducer of mitochondrial relocalization, and a growth inhibitor, which highlights the effectiveness of live-cell studies using this technology.
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Affiliation(s)
- Oscar Perez-Leal
- Department of Pharmaceutical Sciences, Moulder Center for Drug Discovery, School of Pharmacy, Temple University, Philadelphia, Pennsylvania, USA
| | - Jonathon Nixon-Abell
- Janelia Research Campus, Howard Hughes Medical Institute (HHMI), Ashburn, Virginia, USA
| | - Carlos A Barrero
- Department of Pharmaceutical Sciences, Moulder Center for Drug Discovery, School of Pharmacy, Temple University, Philadelphia, Pennsylvania, USA
| | - John C Gordon
- Department of Pharmaceutical Sciences, Moulder Center for Drug Discovery, School of Pharmacy, Temple University, Philadelphia, Pennsylvania, USA
| | - James Oesterling
- Flow Cytometry and Cell Sorting Facility, Fox Chase Cancer Center, Philadelphia, Pennsylvania, USA
| | - Mario C Rico
- Department of Pharmaceutical Sciences, Moulder Center for Drug Discovery, School of Pharmacy, Temple University, Philadelphia, Pennsylvania, USA
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37
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Frost OG, Owji N, Thorogate R, Kyriakidis C, Sawadkar P, Mordan N, Knowles JC, Lali F, Garcia-Gareta E. Cell morphology as a design parameter in the bioengineering of cell-biomaterial surface interactions. Biomater Sci 2021; 9:8032-8050. [PMID: 34723312 DOI: 10.1039/d1bm01149a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Control of cell-surface interaction is necessary for biomaterial applications such as cell sheets, intelligent cell culture surfaces, or functional coatings. In this paper, we propose the emergent property of cell morphology as a design parameter in the bioengineering of cell-biomaterial surface interactions. Cell morphology measured through various parameters can indicate ideal candidates for these various applications thus reducing the time taken for the screening and development process. The hypothesis of this study is that there is an optimal cell morphology range for enhanced cell proliferation and migration on the surface of biomaterials. To test the hypothesis, primary porcine dermal fibroblasts (PDF, 3 biological replicates) were cultured on ten different surfaces comprising components of the natural extracellular matrix of tissues. Results suggested an optimal morphology with a cell aspect ratio (CAR) between 0.2 and 0.4 for both increased cell proliferation and migration. If the CAR was below 0.2 (very elongated cell), cell proliferation was increased whilst migration was reduced. A CAR of 0.4+ (rounded cell) favoured cell migration over proliferation. The screening process, when it comes to biomaterials is a long, repetitive, arduous but necessary event. This study highlights the beneficial use of testing the cell morphology on prospective prototypes, eliminating those that do not support an optimal cell shape. We believe that the research presented in this paper is important as we can help address this screening inefficiency through the use of the emergent property of cell morphology. Future work involves automating CAR quantification for high throughput screening of prototypes.
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Affiliation(s)
- Oliver G Frost
- Regenerative Biomaterials Group, The RAFT Institute & The Griffin Institute, Northwick Park & Saint Mark's Hospital, London, UK.
| | - Nazanin Owji
- Regenerative Biomaterials Group, The RAFT Institute & The Griffin Institute, Northwick Park & Saint Mark's Hospital, London, UK. .,Division of Biomaterials and Tissue Engineering, Eastman Dental Institute, University College London, London, UK
| | - Richard Thorogate
- London Centre for Nanotechnology, Faculty of Mathematical and Physical Sciences, University College London, London, UK
| | - Christos Kyriakidis
- Regenerative Biomaterials Group, The RAFT Institute & The Griffin Institute, Northwick Park & Saint Mark's Hospital, London, UK.
| | - Prasad Sawadkar
- Regenerative Biomaterials Group, The RAFT Institute & The Griffin Institute, Northwick Park & Saint Mark's Hospital, London, UK. .,Division of Surgery and Interventional Science, University College London, London, UK
| | - Nicola Mordan
- Division of Biomaterials and Tissue Engineering, Eastman Dental Institute, University College London, London, UK
| | - Jonathan C Knowles
- Division of Biomaterials and Tissue Engineering, Eastman Dental Institute, University College London, London, UK.,UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, Cheonan 31116, Korea.,Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Centre for Regenerative Medicine, Dankook University, Cheonan 31116, Korea
| | - Ferdinand Lali
- Division of Surgery and Interventional Science, University College London, London, UK.,The Griffin Institute, Northwick Park & Saint Mark's Hospital, London, UK
| | - Elena Garcia-Gareta
- Regenerative Biomaterials Group, The RAFT Institute & The Griffin Institute, Northwick Park & Saint Mark's Hospital, London, UK. .,Division of Biomaterials and Tissue Engineering, Eastman Dental Institute, University College London, London, UK.,Aragonese Agency for R&D (ARAID) Foundation, Zaragoza, Aragón, Spain
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38
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Jani P, Nayani K, Abbott NL. Sculpting the shapes of giant unilamellar vesicles using isotropic-nematic-isotropic phase cycles. SOFT MATTER 2021; 17:9078-9086. [PMID: 34558596 DOI: 10.1039/d1sm00910a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Understanding how soft matter deforms in response to mechanical interactions is central to the design of functional synthetic materials as well as elucidation of the behaviors of biological assemblies. Here we explore how cycles of thermally induced transitions between nematic (N) and isotropic (I) phases can be used to exert cyclical elastic stresses on dispersions of giant unilamellar vesicles (GUVs) and thereby evolve GUV shape and properties. The measurements were enabled by the finding that I-N-I phase transitions of the lyotropic chromonic liquid crystal disodium cromoglycate, when conducted via an intermediate columnar (M) phase, minimized transport of GUVs on phase fronts to confining surfaces. Whereas I to N phase transitions strained spherical GUVs into spindle-like shapes, with an efflux of GUV internal volume, subsequent N to I transitions generated a range of complex GUV shapes, including stomatocyte, pear- and dumbbell-like shapes that depended on the extent of strain in the N phase. The highest strained GUVs were observed to form buds (daughter vesicles) that we show, via a cycle of I-N-I-N phase transitions, are connected via a neck to the parent vesicle. Additional experiments established that changes in elasticity of the phase surrounding the GUVs and not thermal expansion of membranes were responsible for the shape transitions, and that I-N-I transformations that generate stomatocytes can be understood from the Bilayer-Coupling model of GUV shapes. Overall, these observations advance our understanding of how LC elastic stresses can be regulated to evolve the shapes of soft biological assemblies as well as provide new approaches for engineering synthetic soft matter.
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Affiliation(s)
- Purvil Jani
- School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, NY, USA.
| | - Karthik Nayani
- Department of Chemical Engineering, University of Arkansas, Fayetteville, AR, USA
| | - Nicholas L Abbott
- School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, NY, USA.
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39
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Verzat C, Harley J, Patani R, Luisier R. Image-based deep learning reveals the responses of human motor neurons to stress and VCP-related ALS. Neuropathol Appl Neurobiol 2021; 48:e12770. [PMID: 34595747 PMCID: PMC9298273 DOI: 10.1111/nan.12770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 09/16/2021] [Accepted: 09/22/2021] [Indexed: 11/28/2022]
Abstract
AIMS Although morphological attributes of cells and their substructures are recognised readouts of physiological or pathophysiological states, these have been relatively understudied in amyotrophic lateral sclerosis (ALS) research. METHODS In this study, we integrate multichannel fluorescence high-content microscopy data with deep learning imaging methods to reveal-directly from unsegmented images-novel neurite-associated morphological perturbations associated with (ALS-causing) VCP-mutant human motor neurons (MNs). RESULTS Surprisingly, we reveal that previously unrecognised disease-relevant information is withheld in broadly used and often considered 'generic' biological markers of nuclei (DAPI) and neurons ( β III-tubulin). Additionally, we identify changes within the information content of ALS-related RNA binding protein (RBP) immunofluorescence imaging that is captured in VCP-mutant MN cultures. Furthermore, by analysing MN cultures exposed to different extrinsic stressors, we show that heat stress recapitulates key aspects of ALS. CONCLUSIONS Our study therefore reveals disease-relevant information contained in a range of both generic and more specific fluorescent markers and establishes the use of image-based deep learning methods for rapid, automated and unbiased identification of biological hypotheses.
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Affiliation(s)
- Colombine Verzat
- Genomics and Health Informatics Group, Idiap Research Institute, Martigny, Switzerland
| | - Jasmine Harley
- Human Stem Cells and Neurodegeneration Laboratory, The Francis Crick Institute, London, UK.,Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, UK
| | - Rickie Patani
- Human Stem Cells and Neurodegeneration Laboratory, The Francis Crick Institute, London, UK.,Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, UK
| | - Raphaëlle Luisier
- Genomics and Health Informatics Group, Idiap Research Institute, Martigny, Switzerland
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40
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Stiffness Regulates the Morphology, Adhesion, Proliferation, and Osteogenic Differentiation of Maxillary Schneiderian Sinus Membrane-Derived Stem Cells. Stem Cells Int 2021; 2021:8868004. [PMID: 34306097 PMCID: PMC8285206 DOI: 10.1155/2021/8868004] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Revised: 05/06/2021] [Accepted: 06/09/2021] [Indexed: 11/17/2022] Open
Abstract
Recent studies, which aim to optimize maxillary sinus augmentation, have paid significant attention exploring osteogenic potential of maxillary Schneiderian sinus membrane-derived cells (MSSM-derived cells). However, it remains unclear that how MSSM-derived cells could respond to niche's biomechanical properties. Herein, this study investigated the possible effects of substrate stiffness on rMSSM-derived stem cell fate. Initially, rMSSM-derived stem cells with multiple differentiation potential were successfully obtained. We then fabricated polyacrylamide substrates with varied stiffness ranging from 13 to 68 kPa to modulate the mechanical environment of rMSSM-derived stem cells. A larger cell spreading area and increased proliferation of rMSSM-derived stem cells were found on the stiffer substrates. Similarly, cells became more adhesive as their stiffness increased. Furthermore, the higher stiffness facilitated osteogenic differentiation of rMSSM-derived stem cells. Overall, our results indicated that increase in stiffness could mediate behaviors of rMSSM-derived stem cells, which may serve as a guide in future research to design novel biomaterials for maxillary sinus augmentation.
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41
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Choi HJ, Wang C, Pan X, Jang J, Cao M, Brazzo JA, Bae Y, Lee K. Emerging machine learning approaches to phenotyping cellular motility and morphodynamics. Phys Biol 2021; 18:10.1088/1478-3975/abffbe. [PMID: 33971636 PMCID: PMC9131244 DOI: 10.1088/1478-3975/abffbe] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 05/10/2021] [Indexed: 12/22/2022]
Abstract
Cells respond heterogeneously to molecular and environmental perturbations. Phenotypic heterogeneity, wherein multiple phenotypes coexist in the same conditions, presents challenges when interpreting the observed heterogeneity. Advances in live cell microscopy allow researchers to acquire an unprecedented amount of live cell image data at high spatiotemporal resolutions. Phenotyping cellular dynamics, however, is a nontrivial task and requires machine learning (ML) approaches to discern phenotypic heterogeneity from live cell images. In recent years, ML has proven instrumental in biomedical research, allowing scientists to implement sophisticated computation in which computers learn and effectively perform specific analyses with minimal human instruction or intervention. In this review, we discuss how ML has been recently employed in the study of cell motility and morphodynamics to identify phenotypes from computer vision analysis. We focus on new approaches to extract and learn meaningful spatiotemporal features from complex live cell images for cellular and subcellular phenotyping.
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Affiliation(s)
- Hee June Choi
- Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, MA 01609, United States of America
- Vascular Biology Program and Department of Surgery, Boston Children’s Hospital, Harvard Medical School, Boston, MA 02115, United States of America
| | - Chuangqi Wang
- Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, MA 01609, United States of America
- Present address. Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Xiang Pan
- Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, MA 01609, United States of America
- Vascular Biology Program and Department of Surgery, Boston Children’s Hospital, Harvard Medical School, Boston, MA 02115, United States of America
| | - Junbong Jang
- Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, MA 01609, United States of America
- Vascular Biology Program and Department of Surgery, Boston Children’s Hospital, Harvard Medical School, Boston, MA 02115, United States of America
| | - Mengzhi Cao
- Data Science Program, Worcester Polytechnic Institute, Worcester, MA 01609, United States of America
| | - Joseph A Brazzo
- Department of Pathology and Anatomical Sciences, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, State University of New York, Buffalo, NY 14203, United States of America
| | - Yongho Bae
- Department of Pathology and Anatomical Sciences, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, State University of New York, Buffalo, NY 14203, United States of America
| | - Kwonmoo Lee
- Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, MA 01609, United States of America
- Vascular Biology Program and Department of Surgery, Boston Children’s Hospital, Harvard Medical School, Boston, MA 02115, United States of America
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42
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Zhao R, Cao J, Yang X, Zhang Q, Iqbal MZ, Lu J, Kong X. Inorganic material based macrophage regulation for cancer therapy: basic concepts and recent advances. Biomater Sci 2021; 9:4568-4590. [PMID: 34113942 DOI: 10.1039/d1bm00508a] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Macrophages with the M1 phenotype are a type of immune cell with exciting prospects for cancer therapy; however, when these macrophages infiltrate into tumours, many of them are induced by the tumour microenvironment to transform into the M2 type, which can enable tumour defence against external therapeutic strategies, assisting in tumour development. Macrophages have strong plasticity and functional heterogeneity, and their phenotypic transformation is complex and still poorly understood in relation to cancer therapy. Recent material advances in inorganic nanomaterials, especially inorganic elements in vivo, have accelerated the development of macrophage regulation-based cancer treatments. This review summarizes the basics of recent research on macrophage phenotype transformation and discusses the current challenges in macrophage type regulation. Then, the current achievements involving inorganic material-based macrophage regulation and the related anticancer effects of induced macrophages and their extracellular secretions are reviewed systematically. Importantly, inorganic nanomaterial-based macrophage phenotype regulation is flexible and can be adapted for different types of cancer therapies, presenting a possible novel approach for the generation of immune materials for cancer therapy.
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Affiliation(s)
- Ruibo Zhao
- Institute of Smart Biomaterials, School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, Zhejiang, China. and Zhejiang-Mauritius Joint Research Center for Biomaterials and Tissue Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, Zhejiang, China
| | - Jinping Cao
- Institute of Smart Biomaterials, School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, Zhejiang, China. and Zhejiang-Mauritius Joint Research Center for Biomaterials and Tissue Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, Zhejiang, China
| | - Xinyan Yang
- School of Bioengineering, Hangzhou Medical College, Hangzhou 310013, Zhejiang, China
| | - Quan Zhang
- Institute of Smart Biomaterials, School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, Zhejiang, China. and Zhejiang-Mauritius Joint Research Center for Biomaterials and Tissue Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, Zhejiang, China
| | - Muhammad Zubair Iqbal
- Institute of Smart Biomaterials, School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, Zhejiang, China. and Zhejiang-Mauritius Joint Research Center for Biomaterials and Tissue Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, Zhejiang, China
| | - Jiaju Lu
- Institute of Smart Biomaterials, School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, Zhejiang, China. and Zhejiang-Mauritius Joint Research Center for Biomaterials and Tissue Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, Zhejiang, China
| | - Xiangdong Kong
- Institute of Smart Biomaterials, School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, Zhejiang, China. and Zhejiang-Mauritius Joint Research Center for Biomaterials and Tissue Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, Zhejiang, China
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Yang R, Li G, Zhuang C, Yu P, Ye T, Zhang Y, Shang P, Huang J, Cai M, Wang L, Cui W, Deng L. Gradient bimetallic ion-based hydrogels for tissue microstructure reconstruction of tendon-to-bone insertion. SCIENCE ADVANCES 2021; 7:eabg3816. [PMID: 34162547 PMCID: PMC8221628 DOI: 10.1126/sciadv.abg3816] [Citation(s) in RCA: 70] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2021] [Accepted: 04/29/2021] [Indexed: 05/11/2023]
Abstract
Although gradients play an essential role in guiding the function of tissues, achieving synchronous regeneration of gradient tissue injuries remains a challenge. Here, a gradient bimetallic (Cu and Zn) ion-based hydrogel was first constructed via the one-step coordinative crosslinking of sulfhydryl groups with copper and zinc ions for the microstructure reconstruction of the tendon-to-bone insertion. In this bimetallic hydrogel system, zinc and copper ions could not only act as crosslinkers but also provide strong antibacterial effects and induce regenerative capacity in vitro. The capability of hydrogels in simultaneously promoting tenogenesis and osteogenesis was further verified in a rat rotator cuff tear model. It was found that the Cu/Zn gradient layer could induce considerable collagen and fibrocartilage arrangement and ingrowth at the tendon-to-bone interface. Overall, the gradient bimetallic ion-based hydrogel ensures accessibility and provides opportunities to regenerate inhomogeneous tissue with physiological complexity or interface tissue.
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Affiliation(s)
- Renhao Yang
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, P. R. China
| | - Gen Li
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, P. R. China
| | - Chengyu Zhuang
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, P. R. China
| | - Pei Yu
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, P. R. China
| | - Tingjun Ye
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, P. R. China
| | - Yin Zhang
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, P. R. China
| | - Peiyang Shang
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, P. R. China
| | - Jingjing Huang
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, P. R. China
| | - Ming Cai
- Department of Orthopaedics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, No.301 Middle Yanchang Road, Shanghai 200072, P. R. China
| | - Lei Wang
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, P. R. China.
| | - Wenguo Cui
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, P. R. China.
| | - Lianfu Deng
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, P. R. China.
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Kwon TY, Jeong J, Park E, Cho Y, Lim D, Ko UH, Shin JH, Choi J. Physical analysis reveals distinct responses of human bronchial epithelial cells to guanidine and isothiazolinone biocides. Toxicol Appl Pharmacol 2021; 424:115589. [PMID: 34029620 DOI: 10.1016/j.taap.2021.115589] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 04/18/2021] [Accepted: 05/19/2021] [Indexed: 02/06/2023]
Abstract
Changes in the physical state of the cells can serve as important indicators of stress responses because they are closely linked with the changes in the pathophysiological functions of the cells. Physical traits can be conveniently assessed by analyzing the morphological features and the stresses at the cell-matrix and cell-cell adhesions in both single-cell and monolayer model systems in 2D. In this study, we investigated the mechano-stress responses of human bronchial epithelial cells, BEAS-2B, to two functionally distinct groups of biocides identified during the humidifier disinfectant accident, namely, guanidine (PHMG) and isothiazolinone (CMIT/MIT). We analyzed the physical traits, including cell area, nuclear area, and nuclear shape. While the results showed inconsistent average responses to the biocides, the degree of dispersion in the data set, measured by standard deviation, was remarkably higher in CMIT/MIT treated cells for all traits. As mechano-stress endpoints, traction and intercellular stresses were also measured, and the cytoskeletal actin structures were analyzed using immunofluorescence. This study demonstrates the versatility of the real-time imaging-based biomechanical analysis, which will contribute to identifying the temporally sensitive cellular behaviors as well as the emergence of heterogeneity in response to exogenously imposed stress factors. This study will also shed light on a comparative understanding of less studied substance, CMIT/MIT, in relation to a more studied substance, PHMG, which will further contribute to more strategic planning for proper risk management of the ingredients involved in toxicological accidents.
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Affiliation(s)
- Tae Yoon Kwon
- Department of Mechanical Engineering, KAIST, 291 Daehakro, Yuseong-gu, Daejeon 34034, Republic of Korea
| | - Jaeseong Jeong
- School of Environmental Engineering, University of Seoul, 163 Seoulsiripdae-ro, Dongdaemun-gu, Seoul 02504, Republic of Korea
| | - Eunyoung Park
- Department of Mechanical Engineering, KAIST, 291 Daehakro, Yuseong-gu, Daejeon 34034, Republic of Korea
| | - Youngbin Cho
- Department of Mechanical Engineering, KAIST, 291 Daehakro, Yuseong-gu, Daejeon 34034, Republic of Korea
| | - Dongyoung Lim
- School of Environmental Engineering, University of Seoul, 163 Seoulsiripdae-ro, Dongdaemun-gu, Seoul 02504, Republic of Korea
| | - Ung Hyun Ko
- Department of Mechanical Engineering, KAIST, 291 Daehakro, Yuseong-gu, Daejeon 34034, Republic of Korea
| | - Jennifer H Shin
- Department of Mechanical Engineering, KAIST, 291 Daehakro, Yuseong-gu, Daejeon 34034, Republic of Korea.
| | - Jinhee Choi
- School of Environmental Engineering, University of Seoul, 163 Seoulsiripdae-ro, Dongdaemun-gu, Seoul 02504, Republic of Korea.
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45
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Simionato G, Hinkelmann K, Chachanidze R, Bianchi P, Fermo E, van Wijk R, Leonetti M, Wagner C, Kaestner L, Quint S. Red blood cell phenotyping from 3D confocal images using artificial neural networks. PLoS Comput Biol 2021; 17:e1008934. [PMID: 33983926 PMCID: PMC8118337 DOI: 10.1371/journal.pcbi.1008934] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Accepted: 04/01/2021] [Indexed: 12/15/2022] Open
Abstract
The investigation of cell shapes mostly relies on the manual classification of 2D images, causing a subjective and time consuming evaluation based on a portion of the cell surface. We present a dual-stage neural network architecture for analyzing fine shape details from confocal microscopy recordings in 3D. The system, tested on red blood cells, uses training data from both healthy donors and patients with a congenital blood disease, namely hereditary spherocytosis. Characteristic shape features are revealed from the spherical harmonics spectrum of each cell and are automatically processed to create a reproducible and unbiased shape recognition and classification. The results show the relation between the particular genetic mutation causing the disease and the shape profile. With the obtained 3D phenotypes, we suggest our method for diagnostics and theragnostics of blood diseases. Besides the application employed in this study, our algorithms can be easily adapted for the 3D shape phenotyping of other cell types and extend their use to other applications, such as industrial automated 3D quality control.
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Affiliation(s)
- Greta Simionato
- Department of Experimental Physics, Saarland University, Campus E2.6, Saarbrücken, Germany
- Institute for Clinical and Experimental Surgery, Saarland University, Campus University Hospital, Homburg, Germany
| | - Konrad Hinkelmann
- Department of Experimental Physics, Saarland University, Campus E2.6, Saarbrücken, Germany
| | - Revaz Chachanidze
- Department of Experimental Physics, Saarland University, Campus E2.6, Saarbrücken, Germany
- CNRS, University Grenoble Alpes, Grenoble INP, LRP, Grenoble, France
| | - Paola Bianchi
- Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milano, Italy
| | - Elisa Fermo
- Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milano, Italy
| | - Richard van Wijk
- Department of Clinical Chemistry & Haematology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Marc Leonetti
- CNRS, University Grenoble Alpes, Grenoble INP, LRP, Grenoble, France
| | - Christian Wagner
- Department of Experimental Physics, Saarland University, Campus E2.6, Saarbrücken, Germany
- Physics and Materials Science Research Unit, University of Luxembourg, Luxembourg City, Luxembourg
| | - Lars Kaestner
- Department of Experimental Physics, Saarland University, Campus E2.6, Saarbrücken, Germany
- Theoretical Medicine and Biosciences, Saarland University, Campus University Hospital, Homburg, Germany
| | - Stephan Quint
- Department of Experimental Physics, Saarland University, Campus E2.6, Saarbrücken, Germany
- Cysmic GmbH, Saarland University, Saarbrücken, Germany
- * E-mail:
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46
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Starodubtseva MN, Nadyrov EA, Shkliarava NM, Tsukanava AU, Starodubtsev IE, Kondrachyk AN, Matveyenkau MV, Nedoseikina MS. Heterogeneity of nanomechanical properties of the human umbilical vein endothelial cell surface. Microvasc Res 2021; 136:104168. [PMID: 33845104 DOI: 10.1016/j.mvr.2021.104168] [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: 01/24/2021] [Revised: 03/13/2021] [Accepted: 03/30/2021] [Indexed: 11/26/2022]
Abstract
Endothelial cells, due to heterogeneity in the cell structure, can potentially form an inhomogeneous on structural and mechanical properties of the inner layer of the capillaries. Using quantitative nanomechanical mapping mode of atomic force microscopy, the parameters of the structural, elastic, and adhesive properties of the cell surface for living and glutaraldehyde-fixed human umbilical vein endothelial cells were studied. A significant difference in the studied parameters for three cell surface zones (peripheral, perinuclear, and nuclear zones) was established. The perinuclear zone appeared to be the softest zone of the endothelial cell surface. The heterogeneity of the endothelial cell mechanical properties at the nanoscale level can be an important mechanism in regulating the endothelium functions in blood vessels.
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Affiliation(s)
- Maria N Starodubtseva
- Institute of Radiobiology of NAS of Belarus, 4 Fedyuninskogo str., Gomel BY-246007, Belarus; Gomel State Medical University, 5 Lange str., Gomel BY-246000, Belarus.
| | - Eldar A Nadyrov
- Gomel State Medical University, 5 Lange str., Gomel BY-246000, Belarus
| | - Nastassia M Shkliarava
- Institute of Radiobiology of NAS of Belarus, 4 Fedyuninskogo str., Gomel BY-246007, Belarus
| | - Alena U Tsukanava
- Institute of Radiobiology of NAS of Belarus, 4 Fedyuninskogo str., Gomel BY-246007, Belarus
| | | | | | - Matsvei V Matveyenkau
- Institute of Radiobiology of NAS of Belarus, 4 Fedyuninskogo str., Gomel BY-246007, Belarus
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47
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Yan J, Cao L, Wang L, Xie C, Liu Y, Song Z, Xu H, Weng Z, Wang Z, Li L. Response of bEnd.3 cells to growing behavior on the graphene oxide film with 2-D grating structure by two-beam laser interference. APPLIED NANOSCIENCE 2021. [DOI: 10.1007/s13204-021-01701-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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48
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Butler G, Keeton SJ, Johnson LJ, Dash PR. A phenotypic switch in the dispersal strategy of breast cancer cells selected for metastatic colonization. Proc Biol Sci 2020; 287:20202523. [PMID: 33259764 DOI: 10.1098/rspb.2020.2523] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
An important question in cancer evolution concerns which traits make a cell likely to successfully metastasize. Cell motility phenotypes, mediated by cell shape change, are strong candidates. We experimentally evolved breast cancer cells in vitro for metastatic capability, using selective regimes designed to simulate stages of metastasis, then quantified their motility behaviours using computer vision. All evolved lines showed changes to motility phenotypes, and we have identified a previously unknown density-dependent motility phenotype only seen in cells selected for colonization of decellularized lung tissue. These cells increase their rate of morphological change with an increase in migration speed when local cell density is high. However, when the local cell density is low, we find the opposite relationship: the rate of morphological change decreases with an increase in migration speed. Neither the ancestral population, nor cells selected for their ability to escape or invade extracellular matrix-like environments, displays this dynamic behavioural switch. Our results suggest that cells capable of distant-site colonization may be characterized by dynamic morphological phenotypes and the capacity to respond to the local social environment.
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Affiliation(s)
- George Butler
- School of Biological Sciences, University of Reading, Reading, UK
| | - Shirley J Keeton
- School of Biological Sciences, University of Reading, Reading, UK
| | - Louise J Johnson
- School of Biological Sciences, University of Reading, Reading, UK
| | - Philip R Dash
- School of Biological Sciences, University of Reading, Reading, UK
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49
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Morena F, Argentati C, Soccio M, Bicchi I, Luzi F, Torre L, Munari A, Emiliani C, Gigli M, Lotti N, Armentano I, Martino S. Unpatterned Bioactive Poly(Butylene 1,4-Cyclohexanedicarboxylate)-Based Film Fast Induced Neuronal-Like Differentiation of Human Bone Marrow-Mesenchymal Stem Cells. Int J Mol Sci 2020; 21:E9274. [PMID: 33291757 PMCID: PMC7729499 DOI: 10.3390/ijms21239274] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 11/19/2020] [Accepted: 11/30/2020] [Indexed: 12/11/2022] Open
Abstract
Herein, we present poly(butylene 1,4-cyclohexanedicarboxylate) (PBCE) films characterized by an unpatterned microstructure and a specific hydrophobicity, capable of boosting a drastic cytoskeleton architecture remodeling, culminating with the neuronal-like differentiation of human bone marrow-mesenchymal stem cells (hBM-MSCs). We have used two different filming procedures to prepare the films, solvent casting (PBCE) and compression-moulding (PBCE*). PBCE film had a rough and porous surface with spherulite-like aggregations (Ø = 10-20 μm) and was characterized by a water contact angle = 100°. PBCE* showed a smooth and continuous surface without voids and visible spherulite-like aggregations and was more hydrophobic (WCA = 110°). Both surface characteristics were modulated through the copolymerization of different amounts of ether-oxygen-containing co-units into PBCE chemical structure. We showed that only the surface characteristics of PBCE-solvent-casted films steered hBM-MSCs toward a neuronal-like differentiation. hBM-MSCs lost their canonical mesenchymal morphology, acquired a neuronal polarized shape with a long cell protrusion (≥150 μm), expressed neuron-specific class III β-tubulin and microtubule-associated protein 2 neuronal markers, while nestin, a marker of uncommitted stem cells, was drastically silenced. These events were observed as early as 2-days after cell seeding. Of note, the phenomenon was totally absent on PBCE* film, as hBM-MSCs maintained the mesenchymal shape and behavior and did not express neuronal/glial markers.
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Affiliation(s)
- Francesco Morena
- Department of Chemistry, Biology and Biotechnology, University of Perugia, 06123 Perugia, Italy; (F.M.); (C.A.); (I.B.); (C.E.)
| | - Chiara Argentati
- Department of Chemistry, Biology and Biotechnology, University of Perugia, 06123 Perugia, Italy; (F.M.); (C.A.); (I.B.); (C.E.)
| | - Michelina Soccio
- Department of Civil, Chemical, Environmental, and Materials Engineering–DICAM, University of Bologna, 40136 Bologna, Italy; (M.S.); (A.M.)
| | - Ilaria Bicchi
- Department of Chemistry, Biology and Biotechnology, University of Perugia, 06123 Perugia, Italy; (F.M.); (C.A.); (I.B.); (C.E.)
| | - Francesca Luzi
- Civil and Environmental Engineering Department, UdR INSTM, University of Perugia, 05100 Terni, Italy; (F.L.); (L.T.)
| | - Luigi Torre
- Civil and Environmental Engineering Department, UdR INSTM, University of Perugia, 05100 Terni, Italy; (F.L.); (L.T.)
| | - Andrea Munari
- Department of Civil, Chemical, Environmental, and Materials Engineering–DICAM, University of Bologna, 40136 Bologna, Italy; (M.S.); (A.M.)
| | - Carla Emiliani
- Department of Chemistry, Biology and Biotechnology, University of Perugia, 06123 Perugia, Italy; (F.M.); (C.A.); (I.B.); (C.E.)
- CEMIN, University of Perugia, 06123 Perugia, Italy
| | - Matteo Gigli
- Department of Molecular Sciences and Nanosystems, Ca’Foscari University of Venice, 30170 Venezia Mestre, Italy;
| | - Nadia Lotti
- Department of Civil, Chemical, Environmental, and Materials Engineering–DICAM, University of Bologna, 40136 Bologna, Italy; (M.S.); (A.M.)
| | - Ilaria Armentano
- Department of Economics, Engineering, Society and Business Organization (DEIM), University of Tuscia, 01100 Viterbo, Italy
| | - Sabata Martino
- Department of Chemistry, Biology and Biotechnology, University of Perugia, 06123 Perugia, Italy; (F.M.); (C.A.); (I.B.); (C.E.)
- CEMIN, University of Perugia, 06123 Perugia, Italy
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50
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Schaeske J, Fadeeva E, Schlie-Wolter S, Deiwick A, Chichkov BN, Ingendoh-Tsakmakidis A, Stiesch M, Winkel A. Cell Type-Specific Adhesion and Migration on Laser-Structured Opaque Surfaces. Int J Mol Sci 2020; 21:ijms21228442. [PMID: 33182746 PMCID: PMC7696563 DOI: 10.3390/ijms21228442] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 11/02/2020] [Accepted: 11/03/2020] [Indexed: 11/16/2022] Open
Abstract
Cytocompatibility is essential for implant approval. However, initial in vitro screenings mainly include the quantity of adherent immortalized cells and cytotoxicity. Other vital parameters, such as cell migration and an in-depth understanding of the interaction between native tissue cells and implant surfaces, are rarely considered. We investigated different laser-fabricated spike structures using primary and immortalized cell lines of fibroblasts and osteoblasts and included quantification of the cell area, aspect ratio, and focal adhesions. Furthermore, we examined the three-dimensional cell interactions with spike topographies and developed a tailored migration assay for long-term monitoring on opaque materials. While fibroblasts and osteoblasts on small spikes retained their normal morphology, cells on medium and large spikes sank into the structures, affecting the composition of the cytoskeleton and thereby changing cell shape. Up to 14 days, migration appeared stronger on small spikes, probably as a consequence of adequate focal adhesion formation and an intact cytoskeleton, whereas human primary cells revealed differences in comparison to immortalized cell lines. The use of primary cells, analysis of the cell-implant structure interaction as well as cell migration might strengthen the evaluation of cytocompatibility and thereby improve the validity regarding the putative in vivo performance of implant material.
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Affiliation(s)
- Jörn Schaeske
- Department of Prosthetic Dentistry and Biomedical Materials Science, Hannover Medical School, Carl-Neuberg-Straße 1, 30625 Hannover, Germany; (J.S.); (A.I.-T.); (M.S.)
| | - Elena Fadeeva
- Institute of Quantum Optics, Leibniz University of Hannover, Welfengarten 1, 30167 Hannover, Germany; (E.F.); (S.S.-W.); (A.D.); (B.N.C.)
| | - Sabrina Schlie-Wolter
- Institute of Quantum Optics, Leibniz University of Hannover, Welfengarten 1, 30167 Hannover, Germany; (E.F.); (S.S.-W.); (A.D.); (B.N.C.)
| | - Andrea Deiwick
- Institute of Quantum Optics, Leibniz University of Hannover, Welfengarten 1, 30167 Hannover, Germany; (E.F.); (S.S.-W.); (A.D.); (B.N.C.)
| | - Boris N. Chichkov
- Institute of Quantum Optics, Leibniz University of Hannover, Welfengarten 1, 30167 Hannover, Germany; (E.F.); (S.S.-W.); (A.D.); (B.N.C.)
| | - Alexandra Ingendoh-Tsakmakidis
- Department of Prosthetic Dentistry and Biomedical Materials Science, Hannover Medical School, Carl-Neuberg-Straße 1, 30625 Hannover, Germany; (J.S.); (A.I.-T.); (M.S.)
| | - Meike Stiesch
- Department of Prosthetic Dentistry and Biomedical Materials Science, Hannover Medical School, Carl-Neuberg-Straße 1, 30625 Hannover, Germany; (J.S.); (A.I.-T.); (M.S.)
| | - Andreas Winkel
- Department of Prosthetic Dentistry and Biomedical Materials Science, Hannover Medical School, Carl-Neuberg-Straße 1, 30625 Hannover, Germany; (J.S.); (A.I.-T.); (M.S.)
- Correspondence:
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