1
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Barros da Silva P, Oliveira RJA, Araújo M, Caires HR, Bidarra SJ, Barrias CC. An integrative alginate-based 3D in vitro model to explore epithelial-stromal cell dynamics in the breast tumor microenvironment. Carbohydr Polym 2024; 342:122363. [PMID: 39048221 DOI: 10.1016/j.carbpol.2024.122363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 05/10/2024] [Accepted: 06/03/2024] [Indexed: 07/27/2024]
Abstract
The tumor microenvironment (TME) orchestrates cellular and extracellular matrix (ECM) interactions, playing a key role in tumorigenesis, tumor growth, and metastization. Investigating the interplay between stromal-epithelial cells within the TME is paramount for understanding cancer mechanisms but demands reliable biological models. 3D-models have emerged as powerful in vitro tools, but many fall short in replicating cell-cell/cell-matrix interactions. This study introduces a novel hybrid 3D-model of the breast TME, combining epithelial cells, cancer-associated fibroblasts (CAFs), and their ECM. To build the stromal compartment, porous 3D-printed alginate scaffolds were seeded with CAFs, which proliferated and produced ECM. The pores were infused with oxidized peptide-modified alginate hydrogel laden with MCF10A cells, forming the parenchymal compartment. The hybrid system supported epithelial morphogenesis into acini surrounded by fibroblasts and ECM, and could be readily solubilized to recover cells, their matrix, and sequestered soluble factors. Proteome profiling of the retrieved ECM showed upregulation of proteins associated with matrix assembly/remodeling, epithelial-to-mesenchymal transition (EMT), and cancer. The TME-like microenvironment induced a partial EMT in MCF10A cells, generating a hybrid population with epithelial and mesenchymal features, characteristic of aggressive phenotypes. Our model provided new insights into epithelial-stromal interactions within the TME, offering a valuable tool for cancer research in a physiologically-relevant 3D setting.
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Affiliation(s)
- P Barros da Silva
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 5 Porto, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal; FEUP - Faculdade de Engenharia da Universidade do Porto, Porto, Portugal
| | - R J A Oliveira
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 5 Porto, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal; FEUP - Faculdade de Engenharia da Universidade do Porto, Porto, Portugal; ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | - M Araújo
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 5 Porto, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal
| | - H R Caires
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 5 Porto, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal
| | - S J Bidarra
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 5 Porto, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal
| | - C C Barrias
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 5 Porto, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal; ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal.
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2
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Behroozi Kohlan T, Wen Y, Mini C, Finne-Wistrand A. Schiff base crosslinked hyaluronic acid hydrogels with tunable and cell instructive time-dependent mechanical properties. Carbohydr Polym 2024; 338:122173. [PMID: 38763720 DOI: 10.1016/j.carbpol.2024.122173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Revised: 03/30/2024] [Accepted: 04/16/2024] [Indexed: 05/21/2024]
Abstract
The dynamic interplay between cells and their native extracellular matrix (ECM) influences cellular behavior, imposing a challenge in biomaterial design. Dynamic covalent hydrogels are viscoelastic and show self-healing ability, making them a potential scaffold for recapitulating native ECM properties. We aimed to implement kinetically and thermodynamically distinct crosslinkers to prepare self-healing dynamic hydrogels to explore the arising properties and their effects on cellular behavior. To do so, aldehyde-substituted hyaluronic acid (HA) was synthesized to generate imine, hydrazone, and oxime crosslinked dynamic covalent hydrogels. Differences in equilibrium constants of these bonds yielded distinct properties including stiffness, stress relaxation, and self-healing ability. The effects of degree of substitution (DS), polymer concentration, crosslinker to aldehyde ratio, and crosslinker functionality on hydrogel properties were evaluated. The self-healing ability of hydrogels was investigated on samples of the same and different crosslinkers and DS to obtain hydrogels with gradient properties. Subsequently, human dermal fibroblasts were cultured in 2D and 3D to assess the cellular response considering the dynamic properties of the hydrogels. Moreover, assessing cell spreading and morphology on hydrogels having similar modulus but different stress relaxation rates showed the effects of matrix viscoelasticity with higher cell spreading in slower relaxing hydrogels.
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Affiliation(s)
- Taha Behroozi Kohlan
- Department of Fibre and Polymer Technology, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Teknikringen, 56-58, SE 10044 Stockholm, Sweden
| | - Yanru Wen
- Department of Fibre and Polymer Technology, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Teknikringen, 56-58, SE 10044 Stockholm, Sweden
| | - Carina Mini
- Department of Fibre and Polymer Technology, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Teknikringen, 56-58, SE 10044 Stockholm, Sweden
| | - Anna Finne-Wistrand
- Department of Fibre and Polymer Technology, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Teknikringen, 56-58, SE 10044 Stockholm, Sweden.
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3
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Quadrado RFN, Zhai Z, Zavadinack M, Klassen G, Iacomini M, Edgar KJ, Fajardo AR. All-polysaccharide, self-healing, pH-sensitive, in situ-forming hydrogel of carboxymethyl chitosan and aldehyde-functionalized hydroxyethyl cellulose. Carbohydr Polym 2024; 336:122105. [PMID: 38670749 DOI: 10.1016/j.carbpol.2024.122105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 03/25/2024] [Accepted: 03/26/2024] [Indexed: 04/28/2024]
Abstract
In situ forming hydrogels are promising for biomedical applications, especially in drug delivery. The precursor solution can be injected at the target site, where it undergoes a sol-gel transition to afford a hydrogel. In this sense, the most significant characteristic of these hydrogels is fast gelation behavior after injection. This study describes an all-polysaccharide, rapidly in situ-forming hydrogel composed of carboxymethyl chitosan (CMCHT) and hydroxyethyl cellulose functionalized with aldehyde groups (HEC-Ald). The HEC-Ald was synthesized through acetal functionalization, followed by acid deprotection. This innovative approach avoids cleavage of pyran rings, as is inherent in the periodate oxidation approach, which is the most common method currently employed for adding aldehyde groups to polysaccharides. The resulting hydrogel exhibited fast stress relaxation, self-healing properties, and pH sensitivity, which allowed it to control the release of an encapsulated model drug in response to the medium pH. Based on the collected data, the HEC-Ald/CMCHT hydrogels show promise as pH-sensitive drug carriers.
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Affiliation(s)
- Rafael F N Quadrado
- Laboratório de Tecnologia e Desenvolvimento de Compósitos e Materiais Poliméricos (LaCoPol), Federal University of Pelotas, 96010-900 Pelotas, RS, Brazil
| | - Zhenghao Zhai
- Macromolecules Innovation Institute, Virginia Tech, Blacksburg, VA 24061, USA
| | - Matheus Zavadinack
- Department of Biochemistry and Molecular Biology, Paraná Federal University, 81531-980 Curitiba, PR, Brazil
| | - Giseli Klassen
- Department of Basic Pathology, Paraná Federal University, 81531-980 Curitiba, PR, Brazil
| | - Marcello Iacomini
- Department of Biochemistry and Molecular Biology, Paraná Federal University, 81531-980 Curitiba, PR, Brazil
| | - Kevin J Edgar
- Macromolecules Innovation Institute, Virginia Tech, Blacksburg, VA 24061, USA; Department of Sustainable Biomaterials, Virginia Tech, Blacksburg, VA 24061, USA
| | - André R Fajardo
- Laboratório de Tecnologia e Desenvolvimento de Compósitos e Materiais Poliméricos (LaCoPol), Federal University of Pelotas, 96010-900 Pelotas, RS, Brazil.
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4
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Pepe A, Laezza A, Armiento F, Bochicchio B. Chemical Modifications in Hyaluronic Acid-Based Electrospun Scaffolds. Chempluschem 2024; 89:e202300599. [PMID: 38507283 DOI: 10.1002/cplu.202300599] [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: 10/20/2023] [Revised: 03/19/2024] [Accepted: 03/20/2024] [Indexed: 03/22/2024]
Abstract
Hyaluronic acid (HA) is a natural, non-sulfated glycosaminoglycan (GAG) present in ECM. It is involved in different biological functions with appealing properties in cosmetics and pharmaceutical preparations as well as in tissue engineering. Generally, HA has been electrospun in blends with natural or synthetic polymers to produce fibers having diameters in the order of nano and micro-scale whose pores can host cells able to regenerate damaged tissues. In the last decade, a rich literature on electrospun HA-based materials arose. Chemical modifications were generally introduced in HA scaffolds to favour crosslinking or conjugation with bioactive molecules. Considering the high solubility of HA in water, HA-based electrospun scaffolds are cross-linked to increase the stability in biological fluids. Crosslinking is necessary also to avoid the release of HA from the hybrid scaffold when implanted in-vivo. Furthermore, to endow the HA based scaffolds with new chemical or biological properties, conjugation of bioactive molecules to HA was widely reported. Herein, we review the existing research classifying chemical modifications on HA and HA-based electrospun fibers into three categories: i) in-situ crosslinking of electrospun HA-based scaffolds ii) off-site crosslinking of electrospun HA-based scaffolds; iii) conjugation of biofunctional molecules to HA with focus on peptides.
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Affiliation(s)
- Antonietta Pepe
- Department of Science, University of Basilicata, Via Ateneo Lucano, 10, 85100, Potenza, Italy
| | - Antonio Laezza
- Department of Science, University of Basilicata, Via Ateneo Lucano, 10, 85100, Potenza, Italy
| | - Francesca Armiento
- Department of Science, University of Basilicata, Via Ateneo Lucano, 10, 85100, Potenza, Italy
| | - Brigida Bochicchio
- Department of Science, University of Basilicata, Via Ateneo Lucano, 10, 85100, Potenza, Italy
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5
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Chiang CC, Anne R, Chawla P, Shaw RM, He S, Rock EC, Zhou M, Cheng J, Gong YN, Chen YC. Deep learning unlocks label-free viability assessment of cancer spheroids in microfluidics. LAB ON A CHIP 2024; 24:3169-3182. [PMID: 38804084 PMCID: PMC11165951 DOI: 10.1039/d4lc00197d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2024] [Accepted: 05/22/2024] [Indexed: 05/29/2024]
Abstract
Despite recent advances in cancer treatment, refining therapeutic agents remains a critical task for oncologists. Precise evaluation of drug effectiveness necessitates the use of 3D cell culture instead of traditional 2D monolayers. Microfluidic platforms have enabled high-throughput drug screening with 3D models, but current viability assays for 3D cancer spheroids have limitations in reliability and cytotoxicity. This study introduces a deep learning model for non-destructive, label-free viability estimation based on phase-contrast images, providing a cost-effective, high-throughput solution for continuous spheroid monitoring in microfluidics. Microfluidic technology facilitated the creation of a high-throughput cancer spheroid platform with approximately 12 000 spheroids per chip for drug screening. Validation involved tests with eight conventional chemotherapeutic drugs, revealing a strong correlation between viability assessed via LIVE/DEAD staining and phase-contrast morphology. Extending the model's application to novel compounds and cell lines not in the training dataset yielded promising results, implying the potential for a universal viability estimation model. Experiments with an alternative microscopy setup supported the model's transferability across different laboratories. Using this method, we also tracked the dynamic changes in spheroid viability during the course of drug administration. In summary, this research integrates a robust platform with high-throughput microfluidic cancer spheroid assays and deep learning-based viability estimation, with broad applicability to various cell lines, compounds, and research settings.
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Affiliation(s)
- Chun-Cheng Chiang
- UPMC Hillman Cancer Center, University of Pittsburgh, 5115 Centre Ave, Pittsburgh, PA 15232, USA.
- Department of Computational and Systems Biology, University of Pittsburgh, 3420 Forbes Avenue, Pittsburgh, PA 15260, USA
| | - Rajiv Anne
- UPMC Hillman Cancer Center, University of Pittsburgh, 5115 Centre Ave, Pittsburgh, PA 15232, USA.
- Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, 3700 O'Hara Street, Pittsburgh, PA 15260, USA
| | - Pooja Chawla
- Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, 3700 O'Hara Street, Pittsburgh, PA 15260, USA
| | - Rachel M Shaw
- Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, 3700 O'Hara Street, Pittsburgh, PA 15260, USA
| | - Sarah He
- UPMC Hillman Cancer Center, University of Pittsburgh, 5115 Centre Ave, Pittsburgh, PA 15232, USA.
- Carnegie Mellon University, Department of Biological Sciences, 5000 Forbes Avenue, Pittsburgh, PA, 15213, USA
| | - Edwin C Rock
- Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, 3700 O'Hara Street, Pittsburgh, PA 15260, USA
| | - Mengli Zhou
- UPMC Hillman Cancer Center, University of Pittsburgh, 5115 Centre Ave, Pittsburgh, PA 15232, USA.
- Department of Computational and Systems Biology, University of Pittsburgh, 3420 Forbes Avenue, Pittsburgh, PA 15260, USA
- Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Jinxiong Cheng
- UPMC Hillman Cancer Center, University of Pittsburgh, 5115 Centre Ave, Pittsburgh, PA 15232, USA.
- Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, 3700 O'Hara Street, Pittsburgh, PA 15260, USA
| | - Yi-Nan Gong
- UPMC Hillman Cancer Center, University of Pittsburgh, 5115 Centre Ave, Pittsburgh, PA 15232, USA.
- Department of Immunology, University of Pittsburgh School of Medicine, 3420 Forbes Avenue, Pittsburgh, PA, 15260, USA
| | - Yu-Chih Chen
- UPMC Hillman Cancer Center, University of Pittsburgh, 5115 Centre Ave, Pittsburgh, PA 15232, USA.
- Department of Computational and Systems Biology, University of Pittsburgh, 3420 Forbes Avenue, Pittsburgh, PA 15260, USA
- Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, 3700 O'Hara Street, Pittsburgh, PA 15260, USA
- CMU-Pitt Ph.D. Program in Computational Biology, University of Pittsburgh, 3420 Forbes Avenue, Pittsburgh, PA 15260, USA
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6
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Srbova L, Arasalo O, Lehtonen AJ, Pokki J. Measuring mechanical cues for modeling the stromal matrix in 3D cell cultures. SOFT MATTER 2024; 20:3483-3498. [PMID: 38587658 DOI: 10.1039/d3sm01425h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
A breast-cancer tumor develops within a stroma, a tissue where a complex extracellular matrix surrounds cells, mediating the cancer progression through biomechanical and -chemical cues. Current materials partially mimic the stromal matrix in 3D cell cultures but methods for measuring the mechanical properties of the matrix at cell-relevant-length scales and stromal-stiffness levels are lacking. Here, to address this gap, we developed a characterization approach that employs probe-based microrheometry and Bayesian modeling to quantify length-scale-dependent mechanics and mechanical heterogeneity as in the stromal matrix. We examined the interpenetrating network (IPN) composed of alginate scaffolds (for adjusting mechanics) and type-1 collagen (a stromal-matrix constituent). We analyzed viscoelasticity: absolute-shear moduli (stiffness/elasticity) and phase angles (viscous and elastic characteristics). We determined the relationship between microrheometry and rheometry information. Microrheometry reveals lower stiffness at cell-relevant scales, compared to macroscale rheometry, with dependency on the length scale (10 to 100 μm). These data show increasing IPN stiffness with crosslinking until saturation (≃15 mM of Ca2+). Furthermore, we report that IPN stiffness can be adjusted by modulating collagen concentration and interconnectivity (by polymerization temperature). The IPNs are heterogeneous structurally (in SEM) and mechanically. Interestingly, increased alginate crosslinking changes IPN heterogeneity in stiffness but not in phase angle, until the saturation. In contrast, such changes are undetectable in alginate scaffolds. Our nonlinear viscoelasticity analysis at tumor-cell-exerted strains shows that only the softer IPNs stiffen with strain, like the stromal-collagen constituent. In summary, our approach can quantify the stromal-matrix-related viscoelasticity and is likely applicable to other materials in 3D culture.
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Affiliation(s)
- Linda Srbova
- Department of Electrical Engineering and Automation, Aalto University, Espoo, FI-02150, Finland.
| | - Ossi Arasalo
- Department of Electrical Engineering and Automation, Aalto University, Espoo, FI-02150, Finland.
| | - Arttu J Lehtonen
- Department of Electrical Engineering and Automation, Aalto University, Espoo, FI-02150, Finland.
| | - Juho Pokki
- Department of Electrical Engineering and Automation, Aalto University, Espoo, FI-02150, Finland.
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7
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Degirmenci A, Sanyal R, Sanyal A. Metal-Free Click-Chemistry: A Powerful Tool for Fabricating Hydrogels for Biomedical Applications. Bioconjug Chem 2024; 35:433-452. [PMID: 38516745 PMCID: PMC11036366 DOI: 10.1021/acs.bioconjchem.4c00003] [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: 01/04/2024] [Revised: 02/17/2024] [Accepted: 02/20/2024] [Indexed: 03/23/2024]
Abstract
Increasing interest in the utilization of hydrogels in various areas of biomedical sciences ranging from biosensing and drug delivery to tissue engineering has necessitated the synthesis of these materials using efficient and benign chemical transformations. In this regard, the advent of "click" chemistry revolutionized the design of hydrogels and a range of efficient reactions was utilized to obtain hydrogels with increased control over their physicochemical properties. The ability to apply the "click" chemistry paradigm to both synthetic and natural polymers as hydrogel precursors further expanded the utility of this chemistry in network formation. In particular, the ability to integrate clickable handles at predetermined locations in polymeric components enables the formation of well-defined networks. Although, in the early years of "click" chemistry, the copper-catalyzed azide-alkyne cycloaddition was widely employed, recent years have focused on the use of metal-free "click" transformations, since residual metal impurities may interfere with or compromise the biological function of such materials. Furthermore, many of the non-metal-catalyzed "click" transformations enable the fabrication of injectable hydrogels, as well as the fabrication of microstructured gels using spatial and temporal control. This review article summarizes the recent advances in the fabrication of hydrogels using various metal-free "click" reactions and highlights the applications of thus obtained materials. One could envision that the use of these versatile metal-free "click" reactions would continue to revolutionize the design of functional hydrogels geared to address unmet needs in biomedical sciences.
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Affiliation(s)
- Aysun Degirmenci
- Department
of Chemistry, Bogazici University, Bebek, Istanbul 34342, Türkiye
| | - Rana Sanyal
- Department
of Chemistry, Bogazici University, Bebek, Istanbul 34342, Türkiye
- Center
for Life Sciences and Technologies, Bogazici
University, Bebek, Istanbul 34342, Türkiye
| | - Amitav Sanyal
- Department
of Chemistry, Bogazici University, Bebek, Istanbul 34342, Türkiye
- Center
for Life Sciences and Technologies, Bogazici
University, Bebek, Istanbul 34342, Türkiye
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8
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Abrahamsson A, Boroojeni FR, Naeimipour S, Reustle N, Selegård R, Aili D, Dabrosin C. Increased matrix stiffness enhances pro-tumorigenic traits in a physiologically relevant breast tissue- monocyte 3D model. Acta Biomater 2024; 178:160-169. [PMID: 38382828 DOI: 10.1016/j.actbio.2024.02.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 02/06/2024] [Accepted: 02/13/2024] [Indexed: 02/23/2024]
Abstract
High mammographic density, associated with increased tissue stiffness, is a strong risk factor for breast cancer per se. In postmenopausal women there is no differences in the occurrence of ductal carcinoma in situ (DCIS) depending on breast density. Preliminary data suggest that dense breast tissue is associated with a pro-inflammatory microenvironment including infiltrating monocytes. However, the underlying mechanism(s) remains largely unknown. A major roadblock to understanding this risk factor is the lack of relevant in vitro models. A biologically relevant 3D model with tunable stiffness was developed by cross-linking hyaluronic acid. Breast cancer cells were cultured with and without freshly isolated human monocytes. In a unique clinical setting, extracellular proteins were sampled using microdialysis in situ from women with various breast densities. We show that tissue stiffness resembling high mammographic density increases the attachment of monocytes to the cancer cells, increase the expression of adhesion molecules and epithelia-mesenchymal-transition proteins in estrogen receptor (ER) positive breast cancer. Increased tissue stiffness results in increased secretion of similar pro-tumorigenic proteins as those found in human dense breast tissue including inflammatory cytokines, proteases, and growth factors. ER negative breast cancer cells were mostly unaffected suggesting that diverse cancer cell phenotypes may respond differently to tissue stiffness. We introduce a biological relevant model with tunable stiffness that resembles the densities found in normal breast tissue in women. The model will be key for further mechanistic studies. Additionally, our data revealed several pro-tumorigenic pathways that may be exploited for prevention and therapy against breast cancer. STATEMENT OF SIGNIFICANCE: Women with mammographic high-density breasts have a 4-6-fold higher risk of breast cancer than low-density breasts. Biological mechanisms behind this increase are not fully understood and no preventive therapeutics are available. One major reason being a lack of suitable experimental models. Having such models available would greatly enhance the discovery of relevant targets for breast cancer prevention. We present a biologically relevant 3D-model for studies of human dense breasts, providing a platform for investigating both biophysical and biochemical properties that may affect cancer progression. This model will have a major scientific impact on studies for identification of novel targets for breast cancer prevention.
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Affiliation(s)
- Annelie Abrahamsson
- Department of Oncology and Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Fatemeh Rasti Boroojeni
- Laboratory of Molecular Materials, Division of Biophysics and Bioengineering, Department of Physics, Chemistry and Biology, Linköping University, 581 83 Linköping, Sweden
| | - Sajjad Naeimipour
- Laboratory of Molecular Materials, Division of Biophysics and Bioengineering, Department of Physics, Chemistry and Biology, Linköping University, 581 83 Linköping, Sweden
| | - Nina Reustle
- Laboratory of Molecular Materials, Division of Biophysics and Bioengineering, Department of Physics, Chemistry and Biology, Linköping University, 581 83 Linköping, Sweden
| | - Robert Selegård
- Laboratory of Molecular Materials, Division of Biophysics and Bioengineering, Department of Physics, Chemistry and Biology, Linköping University, 581 83 Linköping, Sweden
| | - Daniel Aili
- Laboratory of Molecular Materials, Division of Biophysics and Bioengineering, Department of Physics, Chemistry and Biology, Linköping University, 581 83 Linköping, Sweden.
| | - Charlotta Dabrosin
- Department of Oncology and Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden.
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9
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Carvalho ED, Morais MRG, Pêgo AP, Barrias CC, Araújo M. The interplay between chemical conjugation and biologic performance in the development of alginate-based 3D matrices to mimic neural microenvironments. Carbohydr Polym 2024; 323:121412. [PMID: 37940293 DOI: 10.1016/j.carbpol.2023.121412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 09/09/2023] [Accepted: 09/16/2023] [Indexed: 11/10/2023]
Abstract
Biofunctionalization of polysaccharides is a widely used strategy for obtaining extracellular matrix (ECM)-mimicking biomaterials. Still, commonly employed chemistries present low reaction yields and the selection of the most adequate bioconjugation route can be challenging. Herein, we compared the performance of carbodiimide and reductive amination chemistries for the synthesis of tailored peptide-alginate hybrid hydrogels as neural tissue mimics. Reductive amination dramatically improved the peptide grafting efficiency, with yields of 50 % vs. 20 %, allowing 1.5 to 3-fold higher incorporation of cell-adhesive and matrix-metalloproteinases (MMP)-sensitive peptides, respectively. The conjugation of dual-end reactive MMP-sensitive peptides promoted a partial crosslinking, allowing adjusting gelation, stiffness, and degradability of hydrogels. Such parameters depended on the glycosidic position where the bioactive peptide binds, determined by the adopted chemical strategy, and this significantly impacted the biological response. Reductive amination provided softer (50-210 Pa) and fully degradable (60-100 % weight loss) hydrogels, depending on the amount of peptide in formulation, contrasting with the stiffer (400 Pa) and less degradable (40 % weight loss) carbodiimide-based hydrogels. Due to their opened polymer chain and increased peptide availability to cells, such hydrogels better supported the 3D culture of primary astrocytes, which present high complexity and process branching, allowing the development of improved brain ECM-mimicking systems.
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Affiliation(s)
- Eva D Carvalho
- i3S - Instituto de Inovação e Investigação em Saúde, Universidade do Porto, Porto, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal; FEUP - Faculdade de Engenharia, Universidade do Porto, Porto, Portugal
| | - Miguel R G Morais
- i3S - Instituto de Inovação e Investigação em Saúde, Universidade do Porto, Porto, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal; ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | - Ana P Pêgo
- i3S - Instituto de Inovação e Investigação em Saúde, Universidade do Porto, Porto, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal; ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal.
| | - Cristina C Barrias
- i3S - Instituto de Inovação e Investigação em Saúde, Universidade do Porto, Porto, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal; ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal.
| | - Marco Araújo
- i3S - Instituto de Inovação e Investigação em Saúde, Universidade do Porto, Porto, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal.
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10
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Zhang Z, He C, Chen X. Designing Hydrogels for Immunomodulation in Cancer Therapy and Regenerative Medicine. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2308894. [PMID: 37909463 DOI: 10.1002/adma.202308894] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 10/26/2023] [Indexed: 11/03/2023]
Abstract
The immune system not only acts as a defense against pathogen and cancer cells, but also plays an important role in homeostasis and tissue regeneration. Targeting immune systems is a promising strategy for efficient cancer treatment and regenerative medicine. Current systemic immunomodulation therapies are usually associated with low persistence time, poor targeting to action sites, and severe side effects. Due to their extracellular matrix-mimetic nature, tunable properties and diverse bioactivities, hydrogels are intriguing platforms to locally deliver immunomodulatory agents and cells, as well as provide an immunomodulatory microenvironment to recruit, activate, and expand host immune cells. In this review, the design considerations, including polymer backbones, crosslinking mechanisms, physicochemical nature, and immunomodulation-related components, of the hydrogel platforms, are focused on. The immunomodulatory effects and therapeutic outcomes in cancer therapy and tissue regeneration of different hydrogel systems are emphasized, including hydrogel depots for delivery of immunomodulatory agents, hydrogel scaffolds for cell delivery, and immunomodulatory hydrogels depending on the intrinsic properties of materials. Finally, the remained challenges in current systems and future development of immunomodulatory hydrogels are discussed.
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Affiliation(s)
- Zhen Zhang
- CAS Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
| | - Chaoliang He
- CAS Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Xuesi Chen
- CAS Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
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11
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Lemarié L, Dargar T, Grosjean I, Gache V, Courtial EJ, Sohier J. Human Induced Pluripotent Spheroids' Growth Is Driven by Viscoelastic Properties and Macrostructure of 3D Hydrogel Environment. Bioengineering (Basel) 2023; 10:1418. [PMID: 38136009 PMCID: PMC10740696 DOI: 10.3390/bioengineering10121418] [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: 11/13/2023] [Revised: 12/04/2023] [Accepted: 12/08/2023] [Indexed: 12/24/2023] Open
Abstract
Stem cells, particularly human iPSCs, constitute a powerful tool for tissue engineering, notably through spheroid and organoid models. While the sensitivity of stem cells to the viscoelastic properties of their direct microenvironment is well-described, stem cell differentiation still relies on biochemical factors. Our aim is to investigate the role of the viscoelastic properties of hiPSC spheroids' direct environment on their fate. To ensure that cell growth is driven only by mechanical interaction, bioprintable alginate-gelatin hydrogels with significantly different viscoelastic properties were utilized in differentiation factor-free culture medium. Alginate-gelatin hydrogels of varying concentrations were developed to provide 3D environments of significantly different mechanical properties, ranging from 1 to 100 kPa, while allowing printability. hiPSC spheroids from two different cell lines were prepared by aggregation (⌀ = 100 µm, n > 1 × 104), included and cultured in the different hydrogels for 14 days. While spheroids within dense hydrogels exhibited limited growth, irrespective of formulation, porous hydrogels prepared with a liquid-liquid emulsion method displayed significant variations of spheroid morphology and growth as a function of hydrogel mechanical properties. Transversal culture (adjacent spheroids-laden alginate-gelatin hydrogels) clearly confirmed the separate effect of each hydrogel environment on hiPSC spheroid behavior. This study is the first to demonstrate that a mechanically modulated microenvironment induces diverse hiPSC spheroid behavior without the influence of other factors. It allows one to envision the combination of multiple formulations to create a complex object, where the fate of hiPSCs will be independently controlled by their direct microenvironment.
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Affiliation(s)
- Lucas Lemarié
- SEGULA Technologies, 69100 Villeurbanne, France;
- 3d.FAB, CNRS UMR 5246, ICBMS (Institute of Molecular and Supramolecular Chemistry and Biochemistry), Université Lyon 1, 69622 Villeurbanne, France;
- CNRS UMR 5305, LBTI (Tissue Biology and Therapeutic Engineering Laboratory), 69007 Lyon, France
| | - Tanushri Dargar
- CNRS UMR5261, INSERM U1315, INMG-PNMG (NeuroMyoGene Institute, Physiopathology and Genetics of the Neuron and the Muscle), Université Lyon 1, 69008 Lyon, France; (T.D.); (I.G.); (V.G.)
| | - Isabelle Grosjean
- CNRS UMR5261, INSERM U1315, INMG-PNMG (NeuroMyoGene Institute, Physiopathology and Genetics of the Neuron and the Muscle), Université Lyon 1, 69008 Lyon, France; (T.D.); (I.G.); (V.G.)
| | - Vincent Gache
- CNRS UMR5261, INSERM U1315, INMG-PNMG (NeuroMyoGene Institute, Physiopathology and Genetics of the Neuron and the Muscle), Université Lyon 1, 69008 Lyon, France; (T.D.); (I.G.); (V.G.)
| | - Edwin J. Courtial
- 3d.FAB, CNRS UMR 5246, ICBMS (Institute of Molecular and Supramolecular Chemistry and Biochemistry), Université Lyon 1, 69622 Villeurbanne, France;
| | - Jérôme Sohier
- CNRS UMR 5305, LBTI (Tissue Biology and Therapeutic Engineering Laboratory), 69007 Lyon, France
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12
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Gharios R, Francis RM, DeForest CA. Chemical and Biological Engineering Strategies to Make and Modify Next-Generation Hydrogel Biomaterials. MATTER 2023; 6:4195-4244. [PMID: 38313360 PMCID: PMC10836217 DOI: 10.1016/j.matt.2023.10.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2024]
Abstract
There is a growing interest in the development of technologies to probe and direct in vitro cellular function for fundamental organoid and stem cell biology, functional tissue and metabolic engineering, and biotherapeutic formulation. Recapitulating many critical aspects of the native cellular niche, hydrogel biomaterials have proven to be a defining platform technology in this space, catapulting biological investigation from traditional two-dimensional (2D) culture into the 3D world. Seeking to better emulate the dynamic heterogeneity characteristic of all living tissues, global efforts over the last several years have centered around upgrading hydrogel design from relatively simple and static architectures into stimuli-responsive and spatiotemporally evolvable niches. Towards this end, advances from traditionally disparate fields including bioorthogonal click chemistry, chemoenzymatic synthesis, and DNA nanotechnology have been co-opted and integrated to construct 4D-tunable systems that undergo preprogrammed functional changes in response to user-defined inputs. In this Review, we highlight how advances in synthetic, semisynthetic, and bio-based chemistries have played a critical role in the triggered creation and customization of next-generation hydrogel biomaterials. We also chart how these advances stand to energize the translational pipeline of hydrogels from bench to market and close with an outlook on outstanding opportunities and challenges that lay ahead.
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Affiliation(s)
- Ryan Gharios
- Department of Chemical Engineering, University of Washington, Seattle WA 98105, USA
| | - Ryan M. Francis
- Department of Chemical Engineering, University of Washington, Seattle WA 98105, USA
| | - Cole A. DeForest
- Department of Chemical Engineering, University of Washington, Seattle WA 98105, USA
- Department of Bioengineering, University of Washington, Seattle WA 98105, USA
- Department of Chemistry, University of Washington, Seattle WA 98105, USA
- Institute of Stem Cell & Regenerative Medicine, University of Washington, Seattle WA 98109, USA
- Molecular Engineering & Sciences Institute, University of Washington, Seattle WA 98105, USA
- Institute for Protein Design, University of Washington, Seattle WA 98105, USA
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13
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Castellote-Borrell M, Merlina F, Rodríguez AR, Guasch J. Biohybrid Hydrogels for Tumoroid Culture. Adv Biol (Weinh) 2023; 7:e2300118. [PMID: 37505458 DOI: 10.1002/adbi.202300118] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 06/21/2023] [Indexed: 07/29/2023]
Abstract
Tumoroids are 3D in vitro models that recapitulate key features of in vivo tumors, such as their architecture - hypoxic center and oxygenated outer layer - in contrast with traditional 2D cell cultures. Moreover, they may be able to preserve the patient-specific signature in terms of cell heterogeneity and mutations. Tumoroids are, therefore, interesting tools for improving the understanding of cancer biology, developing new drugs, and potentially designing personalized therapeutic plans. Currently, tumoroids are most often established using basement membrane extracts (BME), which provide a multitude of biological cues. However, BME are characterized by a lack of well-defined composition, limited reproducibility, and potential immunogenicity as a consequence of their natural origin. Synthetic polymers can overcome these problems but lack structural and biochemical complexity, which can limit the functional capabilities of organoids. Biohybrid hydrogels consisting of both natural and synthetic components can combine their advantages and offer superior 3D culture systems. In this review, it is summarized efforts devoted to producing tumoroids using different types of biohybrid hydrogels, which are classified according to their crosslinking mechanism.
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Affiliation(s)
- Miquel Castellote-Borrell
- Dynamic Biomimetics for Cancer Immunotherapy, Max Planck Partner Group, Institute of Materials Science of Barcelona (ICMAB-CSIC), Campus UAB, Bellaterra, 08193, Spain
| | - Francesca Merlina
- Dynamic Biomimetics for Cancer Immunotherapy, Max Planck Partner Group, Institute of Materials Science of Barcelona (ICMAB-CSIC), Campus UAB, Bellaterra, 08193, Spain
| | - Adrián R Rodríguez
- Dynamic Biomimetics for Cancer Immunotherapy, Max Planck Partner Group, Institute of Materials Science of Barcelona (ICMAB-CSIC), Campus UAB, Bellaterra, 08193, Spain
| | - Judith Guasch
- Dynamic Biomimetics for Cancer Immunotherapy, Max Planck Partner Group, Institute of Materials Science of Barcelona (ICMAB-CSIC), Campus UAB, Bellaterra, 08193, Spain
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Madrid, 28029, Spain
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14
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Landon-Brace N, Li NT, McGuigan AP. Exploring New Dimensions of Tumor Heterogeneity: The Application of Single Cell Analysis to Organoid-Based 3D In Vitro Models. Adv Healthc Mater 2023; 12:e2300903. [PMID: 37589373 DOI: 10.1002/adhm.202300903] [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: 03/21/2023] [Revised: 06/28/2023] [Indexed: 08/18/2023]
Abstract
Modeling the heterogeneity of the tumor microenvironment (TME) in vitro is essential to investigating fundamental cancer biology and developing novel treatment strategies that holistically address the factors affecting tumor progression and therapeutic response. Thus, the development of new tools for both in vitro modeling, such as patient-derived organoids (PDOs) and complex 3D in vitro models, and single cell omics analysis, such as single-cell RNA-sequencing, represents a new frontier for investigating tumor heterogeneity. Specifically, the integration of PDO-based 3D in vitro models and single cell analysis offers a unique opportunity to explore the intersecting effects of interpatient, microenvironmental, and tumor cell heterogeneity on cell phenotypes in the TME. In this review, the current use of PDOs in complex 3D in vitro models of the TME is discussed and the emerging directions in the development of these models are highlighted. Next, work that has successfully applied single cell analysis to PDO-based models is examined and important experimental considerations are identified for this approach. Finally, open questions are highlighted that may be amenable to exploration using the integration of PDO-based models and single cell analysis. Ultimately, such investigations may facilitate the identification of novel therapeutic targets for cancer that address the significant influence of tumor-TME interactions.
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Affiliation(s)
- Natalie Landon-Brace
- Institute of Biomedical Engineering, University of Toronto, 200 College Street, Toronto, M5S3E5, Canada
| | - Nancy T Li
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College St, Toronto, M5S3E5, Canada
| | - Alison P McGuigan
- Department of Chemical Engineering and Applied Chemistry, Institute of Biomedical Engineering, University of Toronto, 200 College St, Toronto, M5S3E5, Canada
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15
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Lučić I, Kurtović M, Mlinarić M, Piteša N, Čipak Gašparović A, Sabol M, Milković L. Deciphering Common Traits of Breast and Ovarian Cancer Stem Cells and Possible Therapeutic Approaches. Int J Mol Sci 2023; 24:10683. [PMID: 37445860 DOI: 10.3390/ijms241310683] [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: 05/06/2023] [Revised: 06/21/2023] [Accepted: 06/23/2023] [Indexed: 07/15/2023] Open
Abstract
Breast cancer (BC) and ovarian cancer (OC) are among the most common and deadly cancers affecting women worldwide. Both are complex diseases with marked heterogeneity. Despite the induction of screening programs that increase the frequency of earlier diagnosis of BC, at a stage when the cancer is more likely to respond to therapy, which does not exist for OC, more than 50% of both cancers are diagnosed at an advanced stage. Initial therapy can put the cancer into remission. However, recurrences occur frequently in both BC and OC, which are highly cancer-subtype dependent. Therapy resistance is mainly attributed to a rare subpopulation of cells, named cancer stem cells (CSC) or tumor-initiating cells, as they are capable of self-renewal, tumor initiation, and regrowth of tumor bulk. In this review, we will discuss the distinctive markers and signaling pathways that characterize CSC, their interactions with the tumor microenvironment, and the strategies they employ to evade immune surveillance. Our focus will be on identifying the common features of breast cancer stem cells (BCSC) and ovarian cancer stem cells (OCSC) and suggesting potential therapeutic approaches.
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Affiliation(s)
- Ivan Lučić
- Laboratory for Oxidative Stress, Division of Molecular Medicine, Ruđer Bošković Institute, 10000 Zagreb, Croatia
| | - Matea Kurtović
- Laboratory for Hereditary Cancer, Division of Molecular Medicine, Ruđer Bošković Institute, 10000 Zagreb, Croatia
| | - Monika Mlinarić
- Laboratory for Oxidative Stress, Division of Molecular Medicine, Ruđer Bošković Institute, 10000 Zagreb, Croatia
| | - Nikolina Piteša
- Laboratory for Hereditary Cancer, Division of Molecular Medicine, Ruđer Bošković Institute, 10000 Zagreb, Croatia
| | - Ana Čipak Gašparović
- Laboratory for Oxidative Stress, Division of Molecular Medicine, Ruđer Bošković Institute, 10000 Zagreb, Croatia
| | - Maja Sabol
- Laboratory for Hereditary Cancer, Division of Molecular Medicine, Ruđer Bošković Institute, 10000 Zagreb, Croatia
| | - Lidija Milković
- Laboratory for Oxidative Stress, Division of Molecular Medicine, Ruđer Bošković Institute, 10000 Zagreb, Croatia
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16
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Li W, Wu Y, Zhang X, Wu T, Huang K, Wang B, Liao J. Self-healing hydrogels for bone defect repair. RSC Adv 2023; 13:16773-16788. [PMID: 37283866 PMCID: PMC10240173 DOI: 10.1039/d3ra01700a] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 05/24/2023] [Indexed: 06/08/2023] Open
Abstract
Severe bone defects can be caused by various factors, such as tumor resection, severe trauma, and infection. However, bone regeneration capacity is limited up to a critical-size defect, and further intervention is required. Currently, the most common clinical method to repair bone defects is bone grafting, where autografts are the "gold standard." However, the disadvantages of autografts, including inflammation, secondary trauma and chronic disease, limit their application. Bone tissue engineering (BTE) is an attractive strategy for repairing bone defects and has been widely researched. In particular, hydrogels with a three-dimensional network can be used as scaffolds for BTE owing to their hydrophilicity, biocompatibility, and large porosity. Self-healing hydrogels respond rapidly, autonomously, and repeatedly to induced damage and can maintain their original properties (i.e., mechanical properties, fluidity, and biocompatibility) following self-healing. This review focuses on self-healing hydrogels and their applications in bone defect repair. Moreover, we discussed the recent progress in this research field. Despite the significant existing research achievements, there are still challenges that need to be addressed to promote clinical research of self-healing hydrogels in bone defect repair and increase the market penetration.
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Affiliation(s)
- Weiwei Li
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, West China Hospital of Stomatology, Sichuan University Chengdu 610041 China
| | - Yanting Wu
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, West China Hospital of Stomatology, Sichuan University Chengdu 610041 China
| | - Xu Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, West China Hospital of Stomatology, Sichuan University Chengdu 610041 China
| | - Tingkui Wu
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University Chengdu 610041 China
| | - Kangkang Huang
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University Chengdu 610041 China
| | - Beiyu Wang
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University Chengdu 610041 China
| | - Jinfeng Liao
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, West China Hospital of Stomatology, Sichuan University Chengdu 610041 China
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17
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Deng Y, Fu Y, Chua SL, Khoo BL. Biofilm Potentiates Cancer-Promoting Effects of Tumor-Associated Macrophages in a 3D Multi-Faceted Tumor Model. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2205904. [PMID: 36748304 DOI: 10.1002/smll.202205904] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 01/01/2023] [Indexed: 05/11/2023]
Abstract
Components of the tumor microenvironment (TME), such as tumor-associated macrophages (TAMs), influence tumor progression. The specific polarization and phenotypic transition of TAMs in the tumor microenvironment lead to two-pronged impacts that can promote or hinder cancer development and treatment. Here, a novel microfluidic multi-faceted bladder tumor model (TAMPIEB ) is developed incorporating TAMs and cancer cells to evaluate the impact of bacterial distribution on immunomodulation within the tumor microenvironment in vivo. It is demonstrated for the first time that biofilm-induced inflammatory conditions within tumors promote the transition of macrophages from a pro-inflammatory M1-like to an anti-inflammatory/pro-tumor M2-like state. Consequently, multiple roles and mechanisms by which biofilms promote cancer by inducing pro-tumor phenotypic switch of TAMs are identified, including cancer hallmarks such as reducing susceptibility to apoptosis, enhancing cell viability, and promoting epithelial-mesenchymal transition and metastasis. Furthermore, biofilms formed by extratumoral bacteria can shield tumors from immune attack by TAMs, which can be visualized through various imaging assays in situ. The study sheds light on the underlying mechanism of biofilm-mediated inflammation on tumor progression and provides new insights into combined anti-biofilm therapy and immunotherapy strategies in clinical trials.
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Affiliation(s)
- Yanlin Deng
- Department of Biomedical Engineering, City University of Hong Kong, Kowloon, 999077, Hong Kong
| | - Yatian Fu
- Department of Biomedical Engineering, City University of Hong Kong, Kowloon, 999077, Hong Kong
- Hong Kong Center for Cerebro-Cardiovascular Health Engineering (COCHE), Kowloon, 999077, Hong Kong
| | - Song Lin Chua
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong SAR, Kowloon, 999077, China
- State Key Laboratory of Chemical Biology and Drug Discovery, The Hong Kong Polytechnic University, Hong Kong SAR, Kowloon, 999077, China
- Shenzhen Key Laboratory of Food Biological Safety Control, Kowloon, 999077, Hong Kong
- Research Centre for Deep Space Explorations (RCDSE), The Hong Kong Polytechnic University, Hong Kong SAR, Kowloon, 999077, China
| | - Bee Luan Khoo
- Department of Biomedical Engineering, City University of Hong Kong, Kowloon, 999077, Hong Kong
- Hong Kong Center for Cerebro-Cardiovascular Health Engineering (COCHE), Kowloon, 999077, Hong Kong
- Department of Precision Diagnostic and Therapeutic Technology, City University of Hong Kong Shenzhen-Futian Research Institute, Shenzhen, 518057, China
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18
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Bahlmann LC, Xue C, Chin AA, Skirzynska A, Lu J, Thériault B, Uehling D, Yerofeyeva Y, Peters R, Liu K, Chen J, Martel AL, Yaffe M, Al-Awar R, Goswami RS, Ylanko J, Andrews DW, Kuruvilla J, Laister RC, Shoichet MS. Targeting tumour-associated macrophages in hodgkin lymphoma using engineered extracellular matrix-mimicking cryogels. Biomaterials 2023; 297:122121. [PMID: 37075613 DOI: 10.1016/j.biomaterials.2023.122121] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 03/08/2023] [Accepted: 04/06/2023] [Indexed: 04/21/2023]
Abstract
Tumour-associated macrophages are linked with poor prognosis and resistance to therapy in Hodgkin lymphoma; however, there are no suitable preclinical models to identify macrophage-targeting therapeutics. We used primary human tumours to guide the development of a mimetic cryogel, wherein Hodgkin (but not Non-Hodgkin) lymphoma cells promoted primary human macrophage invasion. In an invasion inhibitor screen, we identified five drug hits that significantly reduced tumour-associated macrophage invasion: marimastat, batimastat, AS1517499, ruxolitinib, and PD-169316. Importantly, ruxolitinib has demonstrated recent success in Hodgkin lymphoma clinical trials. Both ruxolitinib and PD-169316 (a p38 mitogen-activated protein kinase (p38 MAPK) inhibitor) decreased the percent of M2-like macrophages; however, only PD-169316 enhanced the percentage of M1-like macrophages. We validated p38 MAPK as an anti-invasion drug target with five additional drugs using a high-content imaging platform. With our biomimetic cryogel, we modeled macrophage invasion in Hodgkin lymphoma and then used it for target discovery and drug screening, ultimately identifying potential future therapeutics.
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Affiliation(s)
- Laura C Bahlmann
- Institute of Biomedical Engineering, 164 College Street, Toronto, Ontario, M5S 3G9, Canada; The Donnelly Centre, University of Toronto, Toronto, 160 College St, Ontario, M5S 3E1, Canada
| | - Chang Xue
- Institute of Biomedical Engineering, 164 College Street, Toronto, Ontario, M5S 3G9, Canada; The Donnelly Centre, University of Toronto, Toronto, 160 College St, Ontario, M5S 3E1, Canada
| | - Allysia A Chin
- The Donnelly Centre, University of Toronto, Toronto, 160 College St, Ontario, M5S 3E1, Canada; Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, Ontario, M5S 3E5, Canada
| | - Arianna Skirzynska
- Institute of Biomedical Engineering, 164 College Street, Toronto, Ontario, M5S 3G9, Canada; The Donnelly Centre, University of Toronto, Toronto, 160 College St, Ontario, M5S 3E1, Canada; Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, Ontario, M5S 3E5, Canada
| | - Joy Lu
- Institute of Biomedical Engineering, 164 College Street, Toronto, Ontario, M5S 3G9, Canada; The Donnelly Centre, University of Toronto, Toronto, 160 College St, Ontario, M5S 3E1, Canada
| | - Brigitte Thériault
- Drug Discovery Program, Ontario Institute of Cancer Research, 661 University Ave Suite 510, Toronto, Ontario, M5G 0A3, Canada
| | - David Uehling
- Drug Discovery Program, Ontario Institute of Cancer Research, 661 University Ave Suite 510, Toronto, Ontario, M5G 0A3, Canada
| | - Yulia Yerofeyeva
- Biomarker Imaging Research Laboratory, Sunnybrook Research Institute, 2075 Bayview Ave, Toronto, Ontario, M4N 3M5, Canada
| | - Rachel Peters
- Biomarker Imaging Research Laboratory, Sunnybrook Research Institute, 2075 Bayview Ave, Toronto, Ontario, M4N 3M5, Canada
| | - Kela Liu
- Biomarker Imaging Research Laboratory, Sunnybrook Research Institute, 2075 Bayview Ave, Toronto, Ontario, M4N 3M5, Canada
| | - Jianan Chen
- Department of Medical Biophysics, University of Toronto, 101 College St Suite 15-701, Toronto, Ontario, M5G 1L7, Canada
| | - Anne L Martel
- Department of Medical Biophysics, University of Toronto, 101 College St Suite 15-701, Toronto, Ontario, M5G 1L7, Canada; Physical Sciences, Odette Cancer Research Program, Sunnybrook Research Institute, 2075 Bayview Ave, Toronto, Ontario, M4N 3M5, Canada
| | - Martin Yaffe
- Department of Medical Biophysics, University of Toronto, 101 College St Suite 15-701, Toronto, Ontario, M5G 1L7, Canada; Physical Sciences, Odette Cancer Research Program, Sunnybrook Research Institute, 2075 Bayview Ave, Toronto, Ontario, M4N 3M5, Canada
| | - Rima Al-Awar
- Drug Discovery Program, Ontario Institute of Cancer Research, 661 University Ave Suite 510, Toronto, Ontario, M5G 0A3, Canada; Department of Pharmacology & Toxicology, University of Toronto, 1 King's College Circle, Toronto, ON M5S 1A8, Canada
| | - Rashmi S Goswami
- Biological Sciences, Odette Cancer Research Program, Sunnybrook Research Institute, 2075 Bayview Ave, Toronto, Ontario, M4N 3M5, Canada; Department of Laboratory Medicine and Molecular Diagnostics, Sunnybrook Health Sciences Centre, 2075 Bayview Ave, Toronto, Ontario, M4N 3M5, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, 1 King's College Circle, Toronto, Ontario, M5S 1A8, Canada
| | - Jarkko Ylanko
- Biological Sciences, Odette Cancer Research Program, Sunnybrook Research Institute, 2075 Bayview Ave, Toronto, Ontario, M4N 3M5, Canada
| | - David W Andrews
- Department of Medical Biophysics, University of Toronto, 101 College St Suite 15-701, Toronto, Ontario, M5G 1L7, Canada; Biological Sciences, Odette Cancer Research Program, Sunnybrook Research Institute, 2075 Bayview Ave, Toronto, Ontario, M4N 3M5, Canada; Department of Biochemistry, University of Toronto, 1 King's College Circle, Toronto, Ontario, M5S 1A8, Canada
| | - John Kuruvilla
- Princess Margaret Cancer Centre, University Health Network, 610 University Ave, Toronto, Ontario, M5G 2C1, Canada
| | - Rob C Laister
- Princess Margaret Cancer Centre, University Health Network, 610 University Ave, Toronto, Ontario, M5G 2C1, Canada.
| | - Molly S Shoichet
- Institute of Biomedical Engineering, 164 College Street, Toronto, Ontario, M5S 3G9, Canada; The Donnelly Centre, University of Toronto, Toronto, 160 College St, Ontario, M5S 3E1, Canada; Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, Ontario, M5S 3E5, Canada; Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3H6, Canada.
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19
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Tang RZ, Liu XQ. Biophysical cues of in vitro biomaterials-based artificial extracellular matrix guide cancer cell plasticity. Mater Today Bio 2023; 19:100607. [PMID: 36960095 PMCID: PMC10027567 DOI: 10.1016/j.mtbio.2023.100607] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 02/10/2023] [Accepted: 03/07/2023] [Indexed: 03/13/2023] Open
Abstract
Clinical evidence supports a role for the extracellular matrix (ECM) in cancer plasticity across multiple tumor types. The lack of in vitro models that represent the native ECMs is a significant challenge for cancer research and drug discovery. Therefore, a major motivation for developing new tumor models is to create the artificial ECM in vitro. Engineered biomaterials can closely mimic the architectural and mechanical properties of ECM to investigate their specific effects on cancer progression, offering an alternative to animal models for the testing of cancer cell behaviors. In this review, we focused on the biomaterials from different sources applied in the fabrication of the artificial ECM and their biophysical cues to recapitulate key features of tumor niche. Furthermore, we summarized how the distinct biophysical cues guided cell behaviors of cancer plasticity, including morphology, epithelial-to-mesenchymal transition (EMT), enrichment of cancer stem cells (CSCs), proliferation, migration/invasion and drug resistance. We also discuss the future opportunities in using the artificial ECM for applications of tumorigenesis research and precision medicine, as well as provide useful messages of principles for designing suitable biomaterial scaffolds.
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Affiliation(s)
- Rui-Zhi Tang
- Key Laboratory for Molecular Diagnosis of Hubei Province, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, PR China
| | - Xi-Qiu Liu
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, PR China
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20
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Suwannakot P, Nemec S, Peres NG, Du EY, Kilian KA, Gaus K, Kavallaris M, Gooding JJ. Electrostatic Assembly of Multiarm PEG-Based Hydrogels as Extracellular Matrix Mimics: Cell Response in the Presence and Absence of RGD Cell Adhesive Ligands. ACS Biomater Sci Eng 2023; 9:1362-1376. [PMID: 36826383 DOI: 10.1021/acsbiomaterials.2c01252] [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] [Indexed: 02/25/2023]
Abstract
Synthetic hydrogels have been used widely as extracellular matrix (ECM) mimics due to the ability to control and mimic physical and biochemical cues observed in natural ECM proteins such as collagen, laminin, and fibronectin. Most synthetic hydrogels are formed via covalent bonding resulting in slow gelation which is incompatible with drop-on-demand 3D bioprinting of cells and injectable hydrogels for therapeutic delivery. Herein, we developed an electrostatically crosslinked PEG-based hydrogel system for creating high-throughput 3D in vitro models using synthetic hydrogels to mimic the ECM cancer environment. A 3-arm PEG-based polymer backbone was first modified with either permanent cationic charged moieties (2-(methacryloyloxy)ethyl trimethylammonium) or permanent anionic charged moieties (3-sulfopropyl methacrylate potassium salt). The resulting charged polymers can be conjugated further with various amounts of cell adhesive RGD motifs (0, 25, 75, and 98%) to study the influences of RGD motifs on breast cancer (MCF-7) spheroid formation. Formation, stability, and mechanical properties of hydrogels were tested with, and without, RGD to evaluate the cellular response to material parameters in a 3D environment. The hydrogels can be degraded in the presence of salts at room temperature by breaking the interaction of oppositely charged polymer chains. MCF-7 cells could be released with high viability through brief exposure to NaCl solution. Flow cytometry characterization demonstrated that embedded MCF-7 cells proliferate better in a softer (60 Pa) 3D hydrogel environment compared to those that are stiffer (1160 Pa). As the stiffness increases, the RGD motif plays a role in promoting cell proliferation in the stiffer hydrogel. Flow cytometry characterization demonstrated that embedded MCF-7 cells proliferate better in a softer (60 Pa) 3D hydrogel environment compared to those that are stiffer (1160 Pa). As the stiffness increases, the RGD motif plays a role in promoting cell proliferation in the stiffer hydrogel. Additionally, cell viability was not impacted by the tested hydrogel stiffness range between 60 to 1160 Pa. Taken together, this PEG-based tuneable hydrogel system shows great promise as a 3D ECM mimic of cancer extracellular environments with controllable biophysical and biochemical properties. The ease of gelation and dissolution through salt concentration provides a way to quickly harvest cells for further analysis at any given time of interest without compromising cell viability.
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Affiliation(s)
- Panthipa Suwannakot
- School of Chemistry, UNSW, Sydney, New South Wales 2052, Australia
- Australian Centre for NanoMedicine, UNSW, Sydney, New South Wales 2052, Australia
| | - Stephanie Nemec
- School of Materials Science and Engineering, UNSW, Sydney, New South Wales 2052, Australia
| | - Newton Gil Peres
- School of Medical Sciences, EMBL Australia Node in Single Molecule Science, UNSW, Sydney, New South Wales 2052, Australia
| | - Eric Y Du
- School of Chemistry, UNSW, Sydney, New South Wales 2052, Australia
- Australian Centre for NanoMedicine, UNSW, Sydney, New South Wales 2052, Australia
| | - Kristopher A Kilian
- School of Chemistry, UNSW, Sydney, New South Wales 2052, Australia
- School of Materials Science and Engineering, UNSW, Sydney, New South Wales 2052, Australia
- Australian Centre for NanoMedicine, UNSW, Sydney, New South Wales 2052, Australia
| | - Katharina Gaus
- School of Medical Sciences, EMBL Australia Node in Single Molecule Science, UNSW, Sydney, New South Wales 2052, Australia
| | - Maria Kavallaris
- Children's Cancer Institute, Lowy Cancer Research Centre, UNSW, Sydney, New South Wales 2052, Australia
- Australian Centre for NanoMedicine, UNSW, Sydney, New South Wales 2052, Australia
| | - J Justin Gooding
- School of Chemistry, UNSW, Sydney, New South Wales 2052, Australia
- Australian Centre for NanoMedicine, UNSW, Sydney, New South Wales 2052, Australia
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21
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Wu C, Teng L, Wang C, Qian T, Hu Z, Zeng Z. Engineering Hydrogels for Modulation of Dendritic Cell Function. Gels 2023; 9:116. [PMID: 36826287 PMCID: PMC9957133 DOI: 10.3390/gels9020116] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/16/2023] [Accepted: 01/25/2023] [Indexed: 02/04/2023] Open
Abstract
Dendritic cells (DCs), the most potent antigen-presenting cells, are necessary for the effective activation of naïve T cells. DCs encounter numerous microenvironments with different biophysical properties, such as stiffness and viscoelasticity. Considering the emerging importance of mechanical cues for DC function, it is essential to understand the impacts of these cues on DC function in a physiological or pathological context. Engineered hydrogels have gained interest for the exploration of the impacts of biophysical matrix cues on DC functions, owing to their extracellular-matrix-mimetic properties, such as high water content, a sponge-like pore structure, and tunable mechanical properties. In this review, the introduction of gelation mechanisms of hydrogels is first summarized. Then, recent advances in the substantial effects of developing hydrogels on DC function are highlighted, and the potential molecular mechanisms are subsequently discussed. Finally, persisting questions and future perspectives are presented.
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Affiliation(s)
- Cuifang Wu
- Key Laboratory of Infectious Immune and Antibody Engineering in University of Guizhou Province, Engineering Research Center of Cellular Immunotherapy of Guizhou Province, School of Basic Medical Sciences/School of Biology and Engineering (School of Modern Industry for Health and Medicine), Guizhou Medical University, Guiyang 550025, China
- Immune Cells and Antibody Engineering Research Center in University of Guizhou Province, Key Laboratory of Biology and Medical Engineering, Guizhou Medical University, Guiyang 550025, China
| | - Lijing Teng
- Key Laboratory of Infectious Immune and Antibody Engineering in University of Guizhou Province, Engineering Research Center of Cellular Immunotherapy of Guizhou Province, School of Basic Medical Sciences/School of Biology and Engineering (School of Modern Industry for Health and Medicine), Guizhou Medical University, Guiyang 550025, China
- Immune Cells and Antibody Engineering Research Center in University of Guizhou Province, Key Laboratory of Biology and Medical Engineering, Guizhou Medical University, Guiyang 550025, China
| | - Caiyuan Wang
- Key Laboratory of Infectious Immune and Antibody Engineering in University of Guizhou Province, Engineering Research Center of Cellular Immunotherapy of Guizhou Province, School of Basic Medical Sciences/School of Biology and Engineering (School of Modern Industry for Health and Medicine), Guizhou Medical University, Guiyang 550025, China
| | - Tianbao Qian
- Key Laboratory of Infectious Immune and Antibody Engineering in University of Guizhou Province, Engineering Research Center of Cellular Immunotherapy of Guizhou Province, School of Basic Medical Sciences/School of Biology and Engineering (School of Modern Industry for Health and Medicine), Guizhou Medical University, Guiyang 550025, China
- Immune Cells and Antibody Engineering Research Center in University of Guizhou Province, Key Laboratory of Biology and Medical Engineering, Guizhou Medical University, Guiyang 550025, China
| | - Zuquan Hu
- Key Laboratory of Infectious Immune and Antibody Engineering in University of Guizhou Province, Engineering Research Center of Cellular Immunotherapy of Guizhou Province, School of Basic Medical Sciences/School of Biology and Engineering (School of Modern Industry for Health and Medicine), Guizhou Medical University, Guiyang 550025, China
- Immune Cells and Antibody Engineering Research Center in University of Guizhou Province, Key Laboratory of Biology and Medical Engineering, Guizhou Medical University, Guiyang 550025, China
| | - Zhu Zeng
- Key Laboratory of Infectious Immune and Antibody Engineering in University of Guizhou Province, Engineering Research Center of Cellular Immunotherapy of Guizhou Province, School of Basic Medical Sciences/School of Biology and Engineering (School of Modern Industry for Health and Medicine), Guizhou Medical University, Guiyang 550025, China
- Immune Cells and Antibody Engineering Research Center in University of Guizhou Province, Key Laboratory of Biology and Medical Engineering, Guizhou Medical University, Guiyang 550025, China
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550025, China
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education & Key Laboratory of Medical Molecular Biology of Guizhou Province, Guizhou Medical University, Guiyang 550004, China
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22
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Bock N, Forouz F, Hipwood L, Clegg J, Jeffery P, Gough M, van Wyngaard T, Pyke C, Adams MN, Bray LJ, Croft L, Thompson EW, Kryza T, Meinert C. GelMA, Click-Chemistry Gelatin and Bioprinted Polyethylene Glycol-Based Hydrogels as 3D Ex Vivo Drug Testing Platforms for Patient-Derived Breast Cancer Organoids. Pharmaceutics 2023; 15:pharmaceutics15010261. [PMID: 36678890 PMCID: PMC9867511 DOI: 10.3390/pharmaceutics15010261] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 12/18/2022] [Accepted: 12/21/2022] [Indexed: 01/13/2023] Open
Abstract
3D organoid model technologies have led to the development of innovative tools for cancer precision medicine. Yet, the gold standard culture system (Matrigel®) lacks the ability for extensive biophysical manipulation needed to model various cancer microenvironments and has inherent batch-to-batch variability. Tunable hydrogel matrices provide enhanced capability for drug testing in breast cancer (BCa), by better mimicking key physicochemical characteristics of this disease’s extracellular matrix. Here, we encapsulated patient-derived breast cancer cells in bioprinted polyethylene glycol-derived hydrogels (PEG), functionalized with adhesion peptides (RGD, GFOGER and DYIGSR) and gelatin-derived hydrogels (gelatin methacryloyl; GelMA and thiolated-gelatin crosslinked with PEG-4MAL; GelSH). Within ranges of BCa stiffnesses (1−6 kPa), GelMA, GelSH and PEG-based hydrogels successfully supported the growth and organoid formation of HR+,−/HER2+,− primary cancer cells for at least 2−3 weeks, with superior organoid formation within the GelSH biomaterial (up to 268% growth after 15 days). BCa organoids responded to doxorubicin, EP31670 and paclitaxel treatments with increased IC50 concentrations on organoids compared to 2D cultures, and highest IC50 for organoids in GelSH. Cell viability after doxorubicin treatment (1 µM) remained >2-fold higher in the 3D gels compared to 2D and doxorubicin/paclitaxel (both 5 µM) were ~2.75−3-fold less potent in GelSH compared to PEG hydrogels. The data demonstrate the potential of hydrogel matrices as easy-to-use and effective preclinical tools for therapy assessment in patient-derived breast cancer organoids.
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Affiliation(s)
- Nathalie Bock
- School of Biomedical Sciences, Faculty of Health, Translational Research Institute (TRI), Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia
- Max Planck Queensland Centre, Brisbane, QLD 4059, Australia
- Centre for Biomedical Technologies, QUT, Brisbane, QLD 4059, Australia
- Australian Prostate Cancer Research Centre (APCRC-Q), QUT, Brisbane, QLD 4102, Australia
- Correspondence:
| | - Farzaneh Forouz
- School of Biomedical Sciences, Faculty of Health, Translational Research Institute (TRI), Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia
- Australian Prostate Cancer Research Centre (APCRC-Q), QUT, Brisbane, QLD 4102, Australia
| | - Luke Hipwood
- School of Biomedical Sciences, Faculty of Health, Translational Research Institute (TRI), Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia
- Centre for Biomedical Technologies, QUT, Brisbane, QLD 4059, Australia
- Gelomics Pty Ltd., Brisbane, QLD 4059, Australia
| | - Julien Clegg
- Centre for Biomedical Technologies, QUT, Brisbane, QLD 4059, Australia
- Gelomics Pty Ltd., Brisbane, QLD 4059, Australia
- Centre for Personalised Analysis of Cancers (CPAC), Brisbane, QLD 4102, Australia
- ARC Training Centre for Cell and Tissue Engineering Technologies, QUT, Brisbane, QLD 4059, Australia
- School of Mechanical, Medical and Process Engineering, QUT, Brisbane, QLD 4000, Australia
| | - Penny Jeffery
- School of Biomedical Sciences, Faculty of Health, Translational Research Institute (TRI), Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia
- Centre for Personalised Analysis of Cancers (CPAC), Brisbane, QLD 4102, Australia
| | | | - Tirsa van Wyngaard
- Centre for Personalised Analysis of Cancers (CPAC), Brisbane, QLD 4102, Australia
- Breast and Endocrine Surgery, Princess Alexandra Hospital, Woolloongabba, QLD 4102, Australia
| | | | - Mark N. Adams
- School of Biomedical Sciences, Faculty of Health, Translational Research Institute (TRI), Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia
- ARC Training Centre for Cell and Tissue Engineering Technologies, QUT, Brisbane, QLD 4059, Australia
- Centre for Genomics and Personalised Health, Brisbane, QLD 4000, Australia
| | - Laura J. Bray
- Centre for Biomedical Technologies, QUT, Brisbane, QLD 4059, Australia
- Centre for Personalised Analysis of Cancers (CPAC), Brisbane, QLD 4102, Australia
- ARC Training Centre for Cell and Tissue Engineering Technologies, QUT, Brisbane, QLD 4059, Australia
| | - Laura Croft
- School of Biomedical Sciences, Faculty of Health, Translational Research Institute (TRI), Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia
- Centre for Personalised Analysis of Cancers (CPAC), Brisbane, QLD 4102, Australia
- Centre for Genomics and Personalised Health, Brisbane, QLD 4000, Australia
| | - Erik W. Thompson
- School of Biomedical Sciences, Faculty of Health, Translational Research Institute (TRI), Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia
- Centre for Personalised Analysis of Cancers (CPAC), Brisbane, QLD 4102, Australia
| | - Thomas Kryza
- Mater Research Institute, Brisbane, QLD 4102, Australia
| | - Christoph Meinert
- Centre for Biomedical Technologies, QUT, Brisbane, QLD 4059, Australia
- Gelomics Pty Ltd., Brisbane, QLD 4059, Australia
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23
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Han Y, Cao Y, Lei H. Dynamic Covalent Hydrogels: Strong yet Dynamic. Gels 2022; 8:577. [PMID: 36135289 PMCID: PMC9498565 DOI: 10.3390/gels8090577] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 09/06/2022] [Accepted: 09/07/2022] [Indexed: 11/23/2022] Open
Abstract
Hydrogels are crosslinked polymer networks with time-dependent mechanical response. The overall mechanical properties are correlated with the dynamics of the crosslinks. Generally, hydrogels crosslinked by permanent chemical crosslinks are strong but static, while hydrogels crosslinked by physical interactions are weak but dynamic. It is highly desirable to create synthetic hydrogels that possess strong mechanical stability yet remain dynamic for various applications, such as drug delivery cargos, tissue engineering scaffolds, and shape-memory materials. Recently, with the introduction of dynamic covalent chemistry, the seemingly conflicting mechanical properties, i.e., stability and dynamics, have been successfully combined in the same hydrogels. Dynamic covalent bonds are mechanically stable yet still capable of exchanging, dissociating, or switching in response to external stimuli, empowering the hydrogels with self-healing properties, injectability and suitability for postprocessing and additive manufacturing. Here in this review, we first summarize the common dynamic covalent bonds used in hydrogel networks based on various chemical reaction mechanisms and the mechanical strength of these bonds at the single molecule level. Next, we discuss how dynamic covalent chemistry makes hydrogel materials more dynamic from the materials perspective. Furthermore, we highlight the challenges and future perspectives of dynamic covalent hydrogels.
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Affiliation(s)
- Yueying Han
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructure, Department of Physics, Nanjing University, Nanjing 210093, China
| | - Yi Cao
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructure, Department of Physics, Nanjing University, Nanjing 210093, China
- Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing 210023, China
- Jinan Microecological Biomedicine Shandong Laboratory, Jinan 250021, China
| | - Hai Lei
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructure, Department of Physics, Nanjing University, Nanjing 210093, China
- Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing 210023, China
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24
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Tamayo-Angorrilla M, López de Andrés J, Jiménez G, Marchal JA. The biomimetic extracellular matrix: a therapeutic tool for breast cancer research. Transl Res 2022; 247:117-136. [PMID: 34844003 DOI: 10.1016/j.trsl.2021.11.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 11/17/2021] [Accepted: 11/21/2021] [Indexed: 12/14/2022]
Abstract
A deeper knowledge of the functional versatility and dynamic nature of the ECM has improved the understanding of cancer biology. Translational Significance: This work provides an in-depth view of the importance of the ECM to develop more mimetic breast cancer models, which aim to recreate the components and architecture of tumor microenvironment. Special focus is placed on decellularized matrices derived from tissue and cell culture, both in procurement and applications, as they have achieved great success in cancer research and pharmaceutical sector. The extracellular matrix (ECM) is increasingly recognized as a master regulator of cell behavior and response to breast cancer (BC) treatment. During BC progression, the mammary gland ECM is remodeled and altered in the composition and organization. Accumulated evidence suggests that changes in the composition and mechanics of ECM, orchestrated by tumor-stromal interactions along with ECM remodeling enzymes, are actively involved in BC progression and metastasis. Understanding how specific ECM components modulate the tumorigenic process has led to an increased interest in the development of biomaterial-based biomimetic ECM models to recapitulate key tumor characteristics. The decellularized ECMs (dECMs) have emerged as a promising in vitro 3D tumor model, whose recent advances in the processing and application could become the biomaterial by excellence for BC research and the pharmaceutical industry. This review offers a detailed view of the contribution of ECM in BC progression, and highlights the application of dECM-based biomaterials as promising personalized tumor models that more accurately mimic the tumorigenic mechanisms of BC and the response to treatment. This will allow the design of targeted therapeutic approaches adapted to the specific characteristics of each tumor that will have a great impact on the precision medicine applied to BC patients.
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Affiliation(s)
- Marta Tamayo-Angorrilla
- Biopathology and Regenerative Medicine Institute (IBIMER), Centre for Biomedical Research (CIBM), University of Granada, Granada, Spain
| | - Julia López de Andrés
- Biopathology and Regenerative Medicine Institute (IBIMER), Centre for Biomedical Research (CIBM), University of Granada, Granada, Spain; Instituto de Investigación Biosanitaria, ibs.GRANADA, University Hospitals of Granada- University of Granada, Granada, Spain; Excellence Research Unit "Modeling Nature" (MNat), University of Granada, Spain
| | - Gema Jiménez
- Biopathology and Regenerative Medicine Institute (IBIMER), Centre for Biomedical Research (CIBM), University of Granada, Granada, Spain; Instituto de Investigación Biosanitaria, ibs.GRANADA, University Hospitals of Granada- University of Granada, Granada, Spain; Excellence Research Unit "Modeling Nature" (MNat), University of Granada, Spain; Department of Human Anatomy and Embryology, Faculty of Medicine, University of Granada, Granada, Spain.
| | - Juan Antonio Marchal
- Biopathology and Regenerative Medicine Institute (IBIMER), Centre for Biomedical Research (CIBM), University of Granada, Granada, Spain; Instituto de Investigación Biosanitaria, ibs.GRANADA, University Hospitals of Granada- University of Granada, Granada, Spain; Excellence Research Unit "Modeling Nature" (MNat), University of Granada, Spain; Department of Human Anatomy and Embryology, Faculty of Medicine, University of Granada, Granada, Spain.
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25
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Tian H, Shi H, Yu J, Ge S, Ruan J. Biophysics Role and Biomimetic Culture Systems of ECM Stiffness in Cancer EMT. GLOBAL CHALLENGES (HOBOKEN, NJ) 2022; 6:2100094. [PMID: 35712024 PMCID: PMC9189138 DOI: 10.1002/gch2.202100094] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 02/14/2022] [Indexed: 06/15/2023]
Abstract
Oncological diseases have become the second leading cause of death from noncommunicable diseases worldwide and a major threat to human health. With the continuous progress in cancer research, the mechanical cues from the tumor microenvironment environment (TME) have been found to play an irreplaceable role in the progression of many cancers. As the main extracellular mechanical signal carrier, extracellular matrix (ECM) stiffness may influence cancer progression through biomechanical transduction to modify downstream gene expression, promote epithelial-mesenchymal transition (EMT), and regulate the stemness of cancer cells. EMT is an important mechanism that induces cancer cell metastasis and is closely influenced by ECM stiffness, either independently or in conjunction with other molecules. In this review, the unique role of ECM stiffness in EMT in different kinds of cancers is first summarized. By continually examining the significance of ECM stiffness in cancer progression, a biomimetic culture system based on 3D manufacturing and novel material technologies is developed to mimic ECM stiffness. The authors then look back on the novel development of the ECM stiffness biomimetic culture systems and finally provide new insights into ECM stiffness in cancer progression which can broaden the fields' horizons with a view toward developing new cancer diagnosis methods and therapies.
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Affiliation(s)
- Hao Tian
- Department of OphthalmologyShanghai Key Laboratory of Orbital Diseases and Ocular OncologyNinth People's HospitalShanghai JiaoTong University School of MedicineShanghaiP. R. China
| | - Hanhan Shi
- Department of OphthalmologyShanghai Key Laboratory of Orbital Diseases and Ocular OncologyNinth People's HospitalShanghai JiaoTong University School of MedicineShanghaiP. R. China
| | - Jie Yu
- Department of OphthalmologyShanghai Key Laboratory of Orbital Diseases and Ocular OncologyNinth People's HospitalShanghai JiaoTong University School of MedicineShanghaiP. R. China
| | - Shengfang Ge
- Department of OphthalmologyShanghai Key Laboratory of Orbital Diseases and Ocular OncologyNinth People's HospitalShanghai JiaoTong University School of MedicineShanghaiP. R. China
| | - Jing Ruan
- Department of OphthalmologyShanghai Key Laboratory of Orbital Diseases and Ocular OncologyNinth People's HospitalShanghai JiaoTong University School of MedicineShanghaiP. R. China
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26
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Biomimetic hydrogel supports initiation and growth of patient-derived breast tumor organoids. Nat Commun 2022; 13:1466. [PMID: 35304464 PMCID: PMC8933543 DOI: 10.1038/s41467-022-28788-6] [Citation(s) in RCA: 41] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 02/01/2022] [Indexed: 12/15/2022] Open
Abstract
Patient-derived tumor organoids (PDOs) are a highly promising preclinical model that recapitulates the histology, gene expression, and drug response of the donor patient tumor. Currently, PDO culture relies on basement-membrane extract (BME), which suffers from batch-to-batch variability, the presence of xenogeneic compounds and residual growth factors, and poor control of mechanical properties. Additionally, for the development of new organoid lines from patient-derived xenografts, contamination of murine host cells poses a problem. We propose a nanofibrillar hydrogel (EKGel) for the initiation and growth of breast cancer PDOs. PDOs grown in EKGel have histopathologic features, gene expression, and drug response that are similar to those of their parental tumors and PDOs in BME. In addition, EKGel offers reduced batch-to-batch variability, a range of mechanical properties, and suppressed contamination from murine cells. These results show that EKGel is an improved alternative to BME matrices for the initiation, growth, and maintenance of breast cancer PDOs. Patient-derived tumour organoids are important preclinical models but suffer from variability from the use of basement-membrane extract and cell contamination. Here, the authors report on the development of mimetic nanofibrilar hydrogel which supports tumour organoid growth with reduced batch variability and cell contamination.
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27
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Shahi S, Roghani-Mamaqani H, Talebi S, Mardani H. Chemical stimuli-induced reversible bond cleavage in covalently crosslinked hydrogels. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2021.214368] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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28
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Nii T, Tabata Y. Immunosuppressive mesenchymal stem cells aggregates incorporating hydrogel microspheres promote an in vitro invasion of cancer cells. Regen Ther 2022; 18:516-522. [PMID: 34977285 PMCID: PMC8668441 DOI: 10.1016/j.reth.2021.11.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/16/2021] [Accepted: 11/24/2021] [Indexed: 12/20/2022] Open
Abstract
Introduction The objective of this study is to design a co-culture system of cancer cells and three-dimensional (3D) mesenchymal stem cells (MSC) aggregates for the in vitro evaluation of cancer invasion. Methods First, the MSC of an immunosuppressive phenotype (MSC2) were prepared by the MSC stimulation of polyriboinosinic polyribocytidylic acid. By simple mixing MSC2 and gelatin hydrogel microspheres (GM) in a U-bottomed well of 96 well plates which had been pre-coated with poly (vinyl alcohol), 3D MSC2 aggregates incorporating GM were obtained. The amount of chemokine (C–C motif) ligand 5 (CCL5) secreted from the MSC2 aggregates incorporating GM. Finally, an invasion assay was performed to evaluate the cancer invasion rate by co-cultured cancer cells and the 3D MSC2 incorporating GM. Results The amount of CCL5 secreted for the 3D MSC2 aggregates incorporating GM was significantly higher than that of two-dimensional (2D) MSC, 2D MSC2, and 3D MSC aggregates incorporating GM. When MDA-MB-231 human breast cancer cells were co-cultured with the 3D MSC2 aggregates incorporating GM, the invasion rate of cancer cells was significantly high compared with that of 2D MSC or 2D MSC2 and 3D MSC aggregates incorporating GM. In addition, high secretion of matrix metalloproteinase-2 was observed for the 3D MSC2 aggregates/cancer cells system. Conclusions It is concluded that the co-culture system of 3D MSC2 aggregates incorporating GM and cancer cells is promising to evaluate the invasion of cancer cells in vitro. This invasion model is an important tool for anti-cancer drug screening. Mesenchymal stem cells of an immunosuppressive phenotype (MSC2) were obtained. 3D MSC2 aggregates incorporating gelatin hydrogel microspheres were prepared. 3D MSC2 aggregates promoted the invasion rate of cancer cells.
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Key Words
- (CCL)5, chemokine (C–C motif) ligand
- 2D, two-dimensional
- 3D, three-dimensional
- Anti-cancer drug screening
- CAF, cancer-associated fibroblasts
- Cancer invasion model
- DDW, double-distilled water
- DMEM, Dulbecco's modified Eagle's medium
- ELISA, enzyme-linked immunosolvent assay
- FCS, fetal calf serum
- GM, gelatin hydrogel microspheres
- Gelatin hydrogel microspheres
- MEM, minimum essential medium
- MMP, matrix metalloproteinase
- MSC, mesenchymal stem cells
- MSC2, MSC of an immunosuppressive phenotype
- Mesenchymal stem cells
- PBS, phosphate buffered-saline
- PVA, poly (vinyl alcohol)
- TAM, tumor-associated macrophages
- Three-dimensional cell culture
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Affiliation(s)
- Teruki Nii
- Laboratory of Biomaterials, Institute for Frontier Life and Medical Sciences, Kyoto University, 53 Kawara-cho Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
| | - Yasuhiko Tabata
- Laboratory of Biomaterials, Institute for Frontier Life and Medical Sciences, Kyoto University, 53 Kawara-cho Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
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29
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Dynamic regulable sodium alginate/poly(γ-glutamic acid) hybrid hydrogels promoted chondrogenic differentiation of stem cells. Carbohydr Polym 2022; 275:118692. [PMID: 34742419 DOI: 10.1016/j.carbpol.2021.118692] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 09/15/2021] [Accepted: 09/19/2021] [Indexed: 02/07/2023]
Abstract
Traditional hydrogels often fail to match the dynamic interactions between mechanical and cellular behaviors exhibited by the natural cartilage extracellular matrix. In this research, we constructed a novel hybrid hydrogels system based on sodium alginate and polyglutamic acid. By controlling the grafting rate and concentration of polymer, the gelation time and mechanical strength can be adjusted between range of 8-28 s and 60-144 kPa. By adding microcrystalline cellulose into the system, so that the degradation time was prolonged (125%) and the swelling rate was reduced (470%). Additionally, the presence of hydrazone bonds gives the system some dynamic response characteristics, and the hydrogel exhibits excellent self healing and injectable ability. It was found that the system had positive cytocompatibility (80%), which accelerated regulatory gene expression in cartilage tissue. In conclusion, this injectable hydrogel with self-healing and customizable mechanical strength will have broad application prospects in future biomedical engineering.
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30
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Lu YH, Baker AEG, Fokina A, Kufleitner M, Kivijäri T, Shoichet MS. Temporally Controlled Photouncaged Epidermal Growth Factor Influences Cell Fate in Hydrogels. ACS Biomater Sci Eng 2021; 8:185-195. [PMID: 34860498 DOI: 10.1021/acsbiomaterials.1c00941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Hydrogels are powerful materials that more accurately mimic the cellular microenvironment over static two-dimensional culture. Photochemical strategies enable dynamic complexity to be achieved within hydrogels to better mimic the extracellular matrix; however, many photochemical systems to pattern proteins within hydrogels are complicated by long reaction times to immobilize these proteins wherein the protein can lose activity. As proof-of-concept, we demonstrate an elegant method where photocaged proteins are immobilized in hydrogels and then directly photoactivated. Specifically, we immobilized streptavidin-ortho-nitrobenzyl-modified epidermal growth factor (EGF) to cross-linked hyaluronan hydrogels and cultured two EGF-responsive cancer cells of breast and lung therein. We used light to temporally uncage and control EGF activation, thereby inducing cell death in breast cancer cells and proliferation in lung cancer cells. These results show how temporal, photochemical, protein activation influences cellular response and lays the foundation for further advances in manipulating the in vitro environment to control cell fate.
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Affiliation(s)
- Yung Hsiang Lu
- Institute of Biomedical Engineering, University of Toronto, 164 College Street, Toronto, Ontario M5S 3G9, Canada.,Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, 160 College Street, Toronto, Ontario M5S 3E1, Canada
| | - Alexander E G Baker
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, 160 College Street, Toronto, Ontario M5S 3E1, Canada.,Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, Ontario M5S 3E5, Canada
| | - Ana Fokina
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, 160 College Street, Toronto, Ontario M5S 3E1, Canada.,Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, Ontario M5S 3E5, Canada
| | - Markus Kufleitner
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, 160 College Street, Toronto, Ontario M5S 3E1, Canada.,Department of Chemistry, Universität Konstanz, D-78457 Konstanz, Germany
| | - Tove Kivijäri
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, 160 College Street, Toronto, Ontario M5S 3E1, Canada.,Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Molly S Shoichet
- Institute of Biomedical Engineering, University of Toronto, 164 College Street, Toronto, Ontario M5S 3G9, Canada.,Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, 160 College Street, Toronto, Ontario M5S 3E1, Canada.,Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, Ontario M5S 3E5, Canada.,Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
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31
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Lee KH, Kim TH. Recent Advances in Multicellular Tumor Spheroid Generation for Drug Screening. BIOSENSORS 2021; 11:445. [PMID: 34821661 PMCID: PMC8615712 DOI: 10.3390/bios11110445] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/08/2021] [Accepted: 11/10/2021] [Indexed: 05/12/2023]
Abstract
Multicellular tumor spheroids (MCTs) have been employed in biomedical fields owing to their advantage in designing a three-dimensional (3D) solid tumor model. For controlling multicellular cancer spheroids, mimicking the tumor extracellular matrix (ECM) microenvironment is important to understand cell-cell and cell-matrix interactions. In drug cytotoxicity assessments, MCTs provide better mimicry of conventional solid tumors that can precisely represent anticancer drug candidates' effects. To generate incubate multicellular spheroids, researchers have developed several 3D multicellular spheroid culture technologies to establish a research background and a platform using tumor modelingvia advanced materials science, and biosensing techniques for drug-screening. In application, drug screening was performed in both invasive and non-invasive manners, according to their impact on the spheroids. Here, we review the trend of 3D spheroid culture technology and culture platforms, and their combination with various biosensing techniques for drug screening in the biomedical field.
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Affiliation(s)
| | - Tae-Hyung Kim
- School of Integrative Engineering, Chung-Ang University, 84 Heukseuk-ro, Dongjak-gu, Seoul 06974, Korea;
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32
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Smith KA, Dang M, Baker AEG, Fuehrmann T, Fokina A, Shoichet MS. Synthesis of an Enzyme-Mediated Reversible Cross-linked Hydrogel for Cell Culture. Biomacromolecules 2021; 22:5118-5127. [PMID: 34752066 DOI: 10.1021/acs.biomac.1c01086] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Detachment of fragile cell types cultured on two-dimensional (2D) surfaces has been shown to be detrimental to their viability. For example, detachment of induced pluripotent stem cell (iPSC)-derived neurons grown in vitro in 2D typically results in loss of neuronal connections and/or cell death. Avoiding cell detachment altogether by changing the properties of the substrate on which the cells are grown is a compelling strategy to maintain cell viability. Here, we present the synthesis of a reversible cross-linked hydrogel that is sufficiently stable for cell culture and differentiation and is cleaved by an external stimulus, facilitating injection. Specifically, hyaluronan (HA) and methylcellulose (MC) were modified with ketone and aldehyde groups, respectively, and a TEV protease-degradable peptide was synthesized via solid-state synthesis and modified at both termini with oxyamine groups to cross-link HA-ketone and MC-aldehyde to produce oxime-cross-linked HA × MC. The HA × MC hydrogel demonstrated good stability, enzyme-sensitive degradation, and cytocompatibility with iPSC-derived neural progenitor cells, laying the framework for broad applicability.
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Affiliation(s)
- Kelti A Smith
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College St, Toronto, ON M5S 3E5, Canada.,Donnelly Centre, University of Toronto, 160 College St, Toronto, ON M5S 3E1, Canada.,Institute of Biomedical Engineering, University of Toronto, 160 College St, Toronto, ON M5S 3E1, Canada
| | - Mickael Dang
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College St, Toronto, ON M5S 3E5, Canada.,Donnelly Centre, University of Toronto, 160 College St, Toronto, ON M5S 3E1, Canada.,Institute of Biomedical Engineering, University of Toronto, 160 College St, Toronto, ON M5S 3E1, Canada
| | - Alexander E G Baker
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College St, Toronto, ON M5S 3E5, Canada.,Donnelly Centre, University of Toronto, 160 College St, Toronto, ON M5S 3E1, Canada.,Institute of Biomedical Engineering, University of Toronto, 160 College St, Toronto, ON M5S 3E1, Canada
| | - Tobias Fuehrmann
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College St, Toronto, ON M5S 3E5, Canada.,Donnelly Centre, University of Toronto, 160 College St, Toronto, ON M5S 3E1, Canada
| | - Ana Fokina
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College St, Toronto, ON M5S 3E5, Canada.,Donnelly Centre, University of Toronto, 160 College St, Toronto, ON M5S 3E1, Canada
| | - Molly S Shoichet
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College St, Toronto, ON M5S 3E5, Canada.,Donnelly Centre, University of Toronto, 160 College St, Toronto, ON M5S 3E1, Canada.,Institute of Biomedical Engineering, University of Toronto, 160 College St, Toronto, ON M5S 3E1, Canada
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33
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Hui E, Sumey JL, Caliari SR. Click-functionalized hydrogel design for mechanobiology investigations. MOLECULAR SYSTEMS DESIGN & ENGINEERING 2021; 6:670-707. [PMID: 36338897 PMCID: PMC9631920 DOI: 10.1039/d1me00049g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The advancement of click-functionalized hydrogels in recent years has coincided with rapid growth in the fields of mechanobiology, tissue engineering, and regenerative medicine. Click chemistries represent a group of reactions that possess high reactivity and specificity, are cytocompatible, and generally proceed under physiologic conditions. Most notably, the high level of tunability afforded by these reactions enables the design of user-controlled and tissue-mimicking hydrogels in which the influence of important physical and biochemical cues on normal and aberrant cellular behaviors can be independently assessed. Several critical tissue properties, including stiffness, viscoelasticity, and biomolecule presentation, are known to regulate cell mechanobiology in the context of development, wound repair, and disease. However, many questions still remain about how the individual and combined effects of these instructive properties regulate the cellular and molecular mechanisms governing physiologic and pathologic processes. In this review, we discuss several click chemistries that have been adopted to design dynamic and instructive hydrogels for mechanobiology investigations. We also chart a path forward for how click hydrogels can help reveal important insights about complex tissue microenvironments.
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Affiliation(s)
- Erica Hui
- Department of Chemical Engineering, University of Virginia, 102 Engineer's Way, Charlottesville, Virginia 22904, USA
| | - Jenna L Sumey
- Department of Chemical Engineering, University of Virginia, 102 Engineer's Way, Charlottesville, Virginia 22904, USA
| | - Steven R Caliari
- Department of Chemical Engineering, University of Virginia, 102 Engineer's Way, Charlottesville, Virginia 22904, USA
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia 22904, USA
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34
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Hahn L, Beudert M, Gutmann M, Keßler L, Stahlhut P, Fischer L, Karakaya E, Lorson T, Thievessen I, Detsch R, Lühmann T, Luxenhofer R. From Thermogelling Hydrogels toward Functional Bioinks: Controlled Modification and Cytocompatible Crosslinking. Macromol Biosci 2021; 21:e2100122. [PMID: 34292657 DOI: 10.1002/mabi.202100122] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 06/20/2021] [Indexed: 12/14/2022]
Abstract
Hydrogels are key components in bioink formulations to ensure printability and stability in biofabrication. In this study, a well-known Diels-Alder two-step post-polymerization modification approach is introduced into thermogelling diblock copolymers, comprising poly(2-methyl-2-oxazoline) and thermoresponsive poly(2-n-propyl-2-oxazine). The diblock copolymers are partially hydrolyzed and subsequently modified by acid/amine coupling with furan and maleimide moieties. While the thermogelling and shear-thinning properties allow excellent printability, trigger-less cell-friendly Diels-Alder click-chemistry yields long-term shape-fidelity. The introduced platform enables easy incorporation of cell-binding moieties (RGD-peptide) for cellular interaction. The hydrogel is functionalized with RGD-peptides using thiol-maleimide chemistry and cell proliferation as well as morphology of fibroblasts seeded on top of the hydrogels confirm the cell adhesion facilitated by the peptides. Finally, bioink formulations are tested for biocompatibility by incorporating fibroblasts homogenously inside the polymer solution pre-printing. After the printing and crosslinking process good cytocompatibility is confirmed. The established bioink system combines a two-step approach by physical precursor gelation followed by an additional chemical stabilization, offering a broad versatility for further biomechanical adaptation or bioresponsive peptide modification.
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Affiliation(s)
- Lukas Hahn
- Functional Polymer Materials, Chair for Advanced Materials Synthesis, Institute for Functional Materials and Biofabrication, Department of Chemistry and Pharmacy and Bavarian Polymer Institute, Julius-Maximilians-University Würzburg, Röntgenring 11, Würzburg, 97070, Germany
| | - Matthias Beudert
- Institute of Pharmacy and Food Chemistry, Julius-Maximilians-University Würzburg, Am Hubland, Würzburg, 97074, Germany
| | - Marcus Gutmann
- Institute of Pharmacy and Food Chemistry, Julius-Maximilians-University Würzburg, Am Hubland, Würzburg, 97074, Germany
| | - Larissa Keßler
- Functional Polymer Materials, Chair for Advanced Materials Synthesis, Institute for Functional Materials and Biofabrication, Department of Chemistry and Pharmacy and Bavarian Polymer Institute, Julius-Maximilians-University Würzburg, Röntgenring 11, Würzburg, 97070, Germany
| | - Philipp Stahlhut
- Department for Functional Materials in Medicine and Dentistry, University of Würzburg, Pleicherwall 2, Würzburg, 97070, Germany
| | - Lena Fischer
- Center for Medical Physics and Technology, Biophysics Group, Friedrich-Alexander-University of Erlangen-Nuremberg, Henkestrasse 91, Erlangen, 91052, Germany
| | - Emine Karakaya
- Institute of Biomaterials, University of Erlangen-Nürnberg, Cauerstr. 6, Erlangen, 91058, Germany
| | - Thomas Lorson
- Institute of Pharmacy and Food Chemistry, Julius-Maximilians-University Würzburg, Am Hubland, Würzburg, 97074, Germany
| | - Ingo Thievessen
- Center for Medical Physics and Technology, Biophysics Group, Friedrich-Alexander-University of Erlangen-Nuremberg, Henkestrasse 91, Erlangen, 91052, Germany
| | - Rainer Detsch
- Institute of Biomaterials, University of Erlangen-Nürnberg, Cauerstr. 6, Erlangen, 91058, Germany
| | - Tessa Lühmann
- Institute of Pharmacy and Food Chemistry, Julius-Maximilians-University Würzburg, Am Hubland, Würzburg, 97074, Germany
| | - Robert Luxenhofer
- Functional Polymer Materials, Chair for Advanced Materials Synthesis, Institute for Functional Materials and Biofabrication, Department of Chemistry and Pharmacy and Bavarian Polymer Institute, Julius-Maximilians-University Würzburg, Röntgenring 11, Würzburg, 97070, Germany.,Soft Matter Chemistry, Department of Chemistry and Helsinki Institute of Sustainability Science, Faculty of Science, University of Helsinki, P.O. Box 55, Helsinki, FIN-00014, Finland
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35
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Chen Q, Cui L, Guan Y, Zhang Y. Diels-Alder Cross-Linked, Washing-Free Hydrogel Films with Ordered Wrinkling Patterns for Multicellular Spheroid Generation. Biomacromolecules 2021; 22:3474-3485. [PMID: 34291920 DOI: 10.1021/acs.biomac.1c00570] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Three-dimensional (3D) multicellular spheroids are a new generation in vitro cell model, however, their applications are severely limited by difficulties in their generation. Here patterned poly(2-hydroxyethyl methacrylate) (PHEMA) hydrogel films were synthesized for their generation. Instead of polymerization of HEMA monomers in the presence of a cross-linker, here the PHEMA films were synthesized by cross-linking furan-functionalized linear PHEMA, PHEMA-furan, and maleimide-functionalized linear PHEMA, PHEMA-mal, via Diels-Alder (DA) reaction between furan and maleimide groups. A thermal treatment temperature of 75 °C was chosen for the cross-linking reaction. The occurrence of DA reaction was confirmed by IR spectra. Using this method, cross-linked PHEMA films with smooth surface were successfully synthesized in situ in the well of cell culture plates. The films were then patterned by simply adding water to swell them. Highly ordered, honeycomb-like wrinkling patterns were successfully obtained by adjusting the furan and maleimide contents in the precursor linear polymers. The patterned hydrogel films were used to generate multicellular spheroids. Guided by the patterns, 3D spheroids with narrow size distribution, tunable size, and high cell viability were successfully obtained. The patterned PHEMA films reported here exhibited a lot of advantages. The patterning method was quite simple and required no template or special equipment. They were synthesized in situ in commercial cell culture plates. Particularly, thanks to the clean nature of the DA reaction, no low molecular weight monomer, cross-linker, initiator, or catalyst, which were potentially cytotoxic, was involved in the film synthesis, and no byproduct was produced and left in the film. The resulting films presented a high biocompatibility, allowing the avoidance of the tedious washing step. The films synthesized here were expected to have high potential for massive production of well-defined multicellular spheroids.
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Affiliation(s)
- Qianbing Chen
- Key Laboratory of Functional Polymer Materials and State Key Laboratory of Medicinal Chemical Biology, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Lei Cui
- Key Laboratory of Functional Polymer Materials and State Key Laboratory of Medicinal Chemical Biology, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Ying Guan
- Key Laboratory of Functional Polymer Materials and State Key Laboratory of Medicinal Chemical Biology, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Yongjun Zhang
- Key Laboratory of Functional Polymer Materials and State Key Laboratory of Medicinal Chemical Biology, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China.,School of Material Science and Engineering, Tiangong University, Tianjin 300387, China
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36
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Goodarzi K, Rao SS. Hyaluronic acid-based hydrogels to study cancer cell behaviors. J Mater Chem B 2021; 9:6103-6115. [PMID: 34259709 DOI: 10.1039/d1tb00963j] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Hyaluronic acid (HA) is a natural polysaccharide and a key component of the extracellular matrix (ECM) in many tissues. Therefore, HA-based biomaterials are extensively utilized to create three dimensional ECM mimics to study cell behaviors in vitro. Specifically, derivatives of HA have been commonly used to fabricate hydrogels with controllable properties. In this review, we discuss the various chemistries employed to fabricate HA-based hydrogels as a tunable matrix to mimic the cancer microenvironment and subsequently study cancer cell behaviors in vitro. These include Michael-addition reactions, photo-crosslinking, carbodiimide chemistry, and Diels-Alder chemistry. The utility of these HA-based hydrogels to examine cancer cell behaviors such as proliferation, migration, and invasion in vitro in various types of cancer are highlighted. Overall, such hydrogels provide a biomimetic material-based platform to probe cell-matrix interactions in cancer cells in vitro and study the mechanisms associated with cancer progression.
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Affiliation(s)
- Kasra Goodarzi
- Department of Chemical and Biological Engineering, The University of Alabama, Tuscaloosa, AL 35487-0203, USA.
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37
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Rizwan M, Baker AEG, Shoichet MS. Designing Hydrogels for 3D Cell Culture Using Dynamic Covalent Crosslinking. Adv Healthc Mater 2021; 10:e2100234. [PMID: 33987970 DOI: 10.1002/adhm.202100234] [Citation(s) in RCA: 70] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 04/22/2021] [Indexed: 12/17/2022]
Abstract
Designing simple biomaterials to replicate the biochemical and mechanical properties of tissues is an ongoing challenge in tissue engineering. For several decades, new biomaterials have been engineered using cytocompatible chemical reactions and spontaneous ligations via click chemistries to generate scaffolds and water swollen polymer networks, known as hydrogels, with tunable properties. However, most of these materials are static in nature, providing only macroscopic tunability of the scaffold mechanics, and do not reflect the dynamic environment of natural extracellular microenvironment. For more complex applications such as organoids or co-culture systems, there remain opportunities to investigate cells that locally remodel and change the physicochemical properties within the matrices. In this review, advanced biomaterials where dynamic covalent chemistry is used to produce stable 3D cell culture models and high-resolution constructs for both in vitro and in vivo applications, are discussed. The implications of dynamic covalent chemistry on viscoelastic properties of in vitro models are summarized, case studies in 3D cell culture are critically analyzed, and opportunities to further improve the performance of biomaterials for 3D tissue engineering are discussed.
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Affiliation(s)
- Muhammad Rizwan
- Department of Chemical Engineering and Applied Chemistry University of Toronto Toronto Ontario M5S 3E5 Canada
- Institute of Biomedical Engineering University of Toronto Toronto Ontario M5S 3G9 Canada
- Donnelly Centre for Cellular and Biomolecular Research University of Toronto Toronto Ontario M5S 3E1 Canada
| | - Alexander E. G. Baker
- Department of Chemical Engineering and Applied Chemistry University of Toronto Toronto Ontario M5S 3E5 Canada
- Institute of Biomedical Engineering University of Toronto Toronto Ontario M5S 3G9 Canada
- Donnelly Centre for Cellular and Biomolecular Research University of Toronto Toronto Ontario M5S 3E1 Canada
| | - Molly S. Shoichet
- Department of Chemical Engineering and Applied Chemistry University of Toronto Toronto Ontario M5S 3E5 Canada
- Institute of Biomedical Engineering University of Toronto Toronto Ontario M5S 3G9 Canada
- Donnelly Centre for Cellular and Biomolecular Research University of Toronto Toronto Ontario M5S 3E1 Canada
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38
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Sugioka Y, Nakamura J, Ohtsuki C, Sugawara-Narutaki A. Thixotropic Hydrogels Composed of Self-Assembled Nanofibers of Double-Hydrophobic Elastin-Like Block Polypeptides. Int J Mol Sci 2021; 22:4104. [PMID: 33921095 PMCID: PMC8071462 DOI: 10.3390/ijms22084104] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/12/2021] [Accepted: 04/12/2021] [Indexed: 12/29/2022] Open
Abstract
Physically crosslinked hydrogels with thixotropic properties attract considerable attention in the biomedical research field because their self-healing nature is useful in cell encapsulation, as injectable gels, and as bioinks for three-dimensional (3D) bioprinting. Here, we report the formation of thixotropic hydrogels containing nanofibers of double-hydrophobic elastin-like polypeptides (ELPs). The hydrogels are obtained with the double-hydrophobic ELPs at 0.5 wt%, the concentration of which is an order of magnitude lower than those for previously reported ELP hydrogels. Although the kinetics of hydrogel formation is slower for the double-hydrophobic ELP with a cell-binding sequence, the storage moduli G' of mature hydrogels are similar regardless of the presence of a cell-binding sequence. Reversible gel-sol transitions are demonstrated in step-strain rheological measurements. The degree of recovery of the storage modulus G' after the removal of high shear stress is improved by chemical crosslinking of nanofibers when intermolecular crosslinking is successful. This work would provide deeper insight into the structure-property relationships of the self-assembling polypeptides and a better design strategy for hydrogels with desired viscoelastic properties.
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Affiliation(s)
- Yusuke Sugioka
- Department of Materials Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan; (Y.S.); (J.N.); (C.O.)
| | - Jin Nakamura
- Department of Materials Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan; (Y.S.); (J.N.); (C.O.)
| | - Chikara Ohtsuki
- Department of Materials Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan; (Y.S.); (J.N.); (C.O.)
| | - Ayae Sugawara-Narutaki
- Department of Energy Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
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39
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Frazier T, Williams C, Henderson M, Duplessis T, Rogers E, Wu X, Hamel K, Martin EC, Mohiuddin O, Shaik S, Devireddy R, Rowan BG, Hayes DJ, Gimble JM. Breast Cancer Reconstruction: Design Criteria for a Humanized Microphysiological System. Tissue Eng Part A 2021; 27:479-488. [PMID: 33528293 PMCID: PMC8196546 DOI: 10.1089/ten.tea.2020.0372] [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: 12/12/2020] [Accepted: 01/21/2021] [Indexed: 11/12/2022] Open
Abstract
International regulatory agencies such as the Food and Drug Administration have mandated that the scientific community develop humanized microphysiological systems (MPS) as an in vitro alternative to animal models in the near future. While the breast cancer research community has long appreciated the importance of three-dimensional growth dynamics in their experimental models, there are remaining obstacles preventing a full conversion to humanized MPS for drug discovery and pathophysiological studies. This perspective evaluates the current status of human tissue-derived cells and scaffolds as building blocks for an "idealized" breast cancer MPS based on bioengineering design principles. It considers the utility of adipose tissue as a potential source of endothelial, lymphohematopoietic, and stromal cells for the support of breast cancer epithelial cells. The relative merits of potential MPS scaffolds derived from adipose tissue, blood components, and synthetic biomaterials is evaluated relative to the current "gold standard" material, Matrigel, a murine chondrosarcoma-derived basement membrane-enriched hydrogel. The advantages and limitations of a humanized breast cancer MPS are discussed in the context of in-process and destructive read-out assays. Impact statement Regulatory authorities have highlighted microphysiological systems as an emerging tool in breast cancer research. This has been led by calls for more predictive human models and reduced animal experimentation. This perspective describes how human-derived cells, extracellular matrices, and hydrogels will provide the building blocks to create breast cancer models that accurately reflect diversity at multiple levels, that is, patient ethnicity, pathophysiology, and metabolic status.
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Affiliation(s)
| | - Christopher Williams
- Division of Basic Pharmaceutical Sciences, Xavier University of Louisiana, New Orleans, Louisiana, USA
| | | | - Tamika Duplessis
- Department of Physical Sciences, Delgado Community College, New Orleans, Louisiana, USA
| | - Emma Rogers
- Obatala Sciences, Inc., New Orleans, Louisiana, USA
| | - Xiying Wu
- Obatala Sciences, Inc., New Orleans, Louisiana, USA
| | - Katie Hamel
- Obatala Sciences, Inc., New Orleans, Louisiana, USA
- Department of Biological and Agricultural Engineering, Louisiana State University, Baton Rouge, Louisiana, USA
| | - Elizabeth C. Martin
- Department of Biological and Agricultural Engineering, Louisiana State University, Baton Rouge, Louisiana, USA
| | - Omair Mohiuddin
- Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Science, University of Karachi, Karachi, Pakistan
| | - Shahensha Shaik
- Cell and Molecular Biology Core Laboratory, Xavier University of Louisiana, New Orleans, Louisiana, USA
| | - Ram Devireddy
- Department of Mechanical Engineering, Louisiana State University, New Orleans, Louisiana, USA
| | - Brian G. Rowan
- Department of Structural and Cellular Biology, Tulane University School of Medicine, New Orleans, Louisiana, USA
| | - Daniel J. Hayes
- Department of Biomedical Engineering, Pennsylvania State University, State College, Pennsylvania, USA
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40
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Baker AEG, Cui H, Ballios BG, Ing S, Yan P, Wolfer J, Wright T, Dang M, Gan NY, Cooke MJ, Ortín-Martínez A, Wallace VA, van der Kooy D, Devenyi R, Shoichet MS. Stable oxime-crosslinked hyaluronan-based hydrogel as a biomimetic vitreous substitute. Biomaterials 2021; 271:120750. [PMID: 33725584 DOI: 10.1016/j.biomaterials.2021.120750] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 02/26/2021] [Accepted: 03/02/2021] [Indexed: 11/30/2022]
Abstract
Vitreous substitutes are clinically used to maintain retinal apposition and preserve retinal function; yet the most used substitutes are gases and oils which have disadvantages including strict face-down positioning post-surgery and the need for subsequent surgical removal, respectively. We have engineered a vitreous substitute comprised of a novel hyaluronan-oxime crosslinked hydrogel. Hyaluronan, which is naturally abundant in the vitreous of the eye, is chemically modified to crosslink with poly(ethylene glycol)-tetraoxyamine via oxime chemistry to produce a vitreous substitute that has similar physical properties to the native vitreous including refractive index, density and transparency. The oxime hydrogel is cytocompatible in vitro with photoreceptors from mouse retinal explants and biocompatible in rabbit eyes as determined by histology of the inner nuclear layer and photoreceptors in the outer nuclear layer. The ocular pressure in the rabbit eyes was consistent over 56 d, demonstrating limited to no swelling. Our vitreous substitute was stable in vivo over 28 d after which it began to degrade, with approximately 50% loss by day 56. We confirmed that the implanted hydrogel did not impact retina function using electroretinography over 90 days versus eyes injected with balanced saline solution. This new oxime hydrogel provides a significant improvement over the status quo as a vitreous substitute.
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Affiliation(s)
- Alexander E G Baker
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College St, Toronto, ON, M5S 3E5, Canada; Institute of Biomedical Engineering, University of Toronto, 160 College St, Toronto, ON, M5S 3E1, Canada
| | - Hong Cui
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College St, Toronto, ON, M5S 3E5, Canada
| | - Brian G Ballios
- Department of Ophthalmology and Vision Sciences, University of Toronto, 340 College St, Toronto, ON, L0J 1C0, Canada
| | - Sonja Ing
- Institute of Biomedical Engineering, University of Toronto, 160 College St, Toronto, ON, M5S 3E1, Canada
| | - Peng Yan
- Kensington Eye Institute, 340 College St, Toronto, ON, M5T 3A9, Canada
| | - Joe Wolfer
- Toronto Animal Eye Clinic, 150 Norseman St, Etobicoke, ON, M8Z 2R4, Canada
| | - Thomas Wright
- Kensington Eye Institute, 340 College St, Toronto, ON, M5T 3A9, Canada; Department of Ophthalmology and Vision Sciences, University of Toronto, 340 College St, Toronto, ON, L0J 1C0, Canada
| | - Mickael Dang
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College St, Toronto, ON, M5S 3E5, Canada
| | - Nicola Y Gan
- Department of Ophthalmology, Tock Seng Hospital, National Healthcare Group Eye Institute, 11 Jln Tan Tock Seng, 308433, Singapore
| | - Michael J Cooke
- Institute of Biomedical Engineering, University of Toronto, 160 College St, Toronto, ON, M5S 3E1, Canada
| | - Arturo Ortín-Martínez
- Donald K Johnson Eye Institute, Krembil Research Institute, University Health Network, 399 Bathurst St, Toronto, ON, M5T 2S8, Canada
| | - Valerie A Wallace
- Department of Ophthalmology and Vision Sciences, University of Toronto, 340 College St, Toronto, ON, L0J 1C0, Canada; Donald K Johnson Eye Institute, Krembil Research Institute, University Health Network, 399 Bathurst St, Toronto, ON, M5T 2S8, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, 1 King's College Circle, ON, M5S 1A8, Canada
| | - Derek van der Kooy
- Department of Molecular Genetics, University of Toronto, 1 King's College Circle, ON, M5S 1A8, Canada; Institute of Medical Sciences, University of Toronto, 1 King's College Circle, ON, M5S 1A8, Canada
| | - Robert Devenyi
- Department of Ophthalmology and Vision Sciences, University of Toronto, 340 College St, Toronto, ON, L0J 1C0, Canada; Donald K Johnson Eye Institute, Krembil Research Institute, University Health Network, 399 Bathurst St, Toronto, ON, M5T 2S8, Canada; Toronto Western Hospital, 399 Bathurst St, Room 6 E W 438, Toronto, ON, M5T 2S8, Canada
| | - Molly S Shoichet
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College St, Toronto, ON, M5S 3E5, Canada; Institute of Biomedical Engineering, University of Toronto, 160 College St, Toronto, ON, M5S 3E1, Canada; Institute of Medical Sciences, University of Toronto, 1 King's College Circle, ON, M5S 1A8, Canada.
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41
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Choi SR, Yang Y, Huang KY, Kong HJ, Flick MJ, Han B. Engineering of biomaterials for tumor modeling. MATERIALS TODAY. ADVANCES 2020; 8:100117. [PMID: 34541484 PMCID: PMC8448271 DOI: 10.1016/j.mtadv.2020.100117] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Development of biomaterials mimicking tumor and its microenvironment has recently emerged for the use of drug discovery, precision medicine, and cancer biology. These biomimetic models have developed by reconstituting tumor and stroma cells within the 3D extracellular matrix. The models are recently extended to recapitulate the in vivo tumor microenvironment, including biological, chemical, and mechanical conditions tailored for specific cancer type and its microenvironment. In spite of the recent emergence of various innovative engineered tumor models, many of these models are still early stage to be adapted for cancer research. In this article, we review the current status of biomaterials engineering for tumor models considering three main aspects - cellular engineering, matrix engineering, and engineering for microenvironmental conditions. Considering cancer-specific variability in these aspects, our discussion is focused on pancreatic cancer, specifically pancreatic ductal adenocarcinoma (PDAC). In addition, we further discussed the current challenges and future opportunities to create reliable and relevant tumor models.
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Affiliation(s)
- Sae Rome Choi
- School of Mechanical Engineering, Purdue University, West Lafayette, IN, USA
| | - Yi Yang
- Department of Pathology and Laboratory Medicine, Lineberger Comprehensive Cancer Center, and Blood Research Center, University of North Carolina, Chapel Hill, NC, USA
| | - Kai-Yu Huang
- Department of Chemical and Biomolecular Engineering, Carl R. Woese Institute for Genomic Biology, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Hyun Joon Kong
- Department of Chemical and Biomolecular Engineering, Carl R. Woese Institute for Genomic Biology, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Matthew J. Flick
- Department of Pathology and Laboratory Medicine, Lineberger Comprehensive Cancer Center, and Blood Research Center, University of North Carolina, Chapel Hill, NC, USA
| | - Bumsoo Han
- School of Mechanical Engineering, Purdue University, West Lafayette, IN, USA
- Weldon School of Biomedical Engineering and Purdue Center for Cancer Research, Purdue University, West Lafayette, IN, USA
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42
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Dai W, Sun M, Leng X, Hu X, Ao Y. Recent Progress in 3D Printing of Elastic and High-Strength Hydrogels for the Treatment of Osteochondral and Cartilage Diseases. Front Bioeng Biotechnol 2020; 8:604814. [PMID: 33330436 PMCID: PMC7729093 DOI: 10.3389/fbioe.2020.604814] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 11/03/2020] [Indexed: 11/13/2022] Open
Abstract
Despite considerable progress for the regenerative medicine, repair of full-thickness articular cartilage defects and osteochondral interface remains challenging. This low efficiency is largely due to the difficulties in recapitulating the stratified zonal architecture of articular cartilage and engineering complex gradients for bone-soft tissue interface. This has led to increased interest in three-dimensional (3D) printing technologies in the field of musculoskeletal tissue engineering. Printable and biocompatible hydrogels are attractive materials for 3D printing applications because they not only own high tunability and complexity, but also offer favorable biomimetic environments for live cells, such as porous structure, high water content, and bioactive molecule incorporation. However, conventional hydrogels are usually mechanically weak and brittle, which cannot reach the mechanical requirements for repair of articular cartilage defects and osteochondral interface. Therefore, the development of elastic and high-strength hydrogels for 3D printing in the repairment of cartilage defects and osteochondral interface is crucial. In this review, we summarized the recent progress in elastic and high-strength hydrogels for 3D printing and categorized them into six groups, namely ion bonds interactions, nanocomposites integrated in hydrogels, supramolecular guest-host interactions, hydrogen bonds interactions, dynamic covalent bonds interactions, and hydrophobic interactions. These 3D printed elastic and high-strength hydrogels may provide new insights for the treatment of osteochondral and cartilage diseases.
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Affiliation(s)
- Wenli Dai
- Beijing Key Laboratory of Sports Injuries, Institute of Sports Medicine, Peking University Third Hospital, Beijing, China
| | - Muyang Sun
- Beijing Key Laboratory of Sports Injuries, Institute of Sports Medicine, Peking University Third Hospital, Beijing, China
| | - Xi Leng
- Medical Imaging Center, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xiaoqing Hu
- Beijing Key Laboratory of Sports Injuries, Institute of Sports Medicine, Peking University Third Hospital, Beijing, China
| | - Yingfang Ao
- Beijing Key Laboratory of Sports Injuries, Institute of Sports Medicine, Peking University Third Hospital, Beijing, China
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43
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Natural and Synthetic Biomaterials for Engineering Multicellular Tumor Spheroids. Polymers (Basel) 2020; 12:polym12112506. [PMID: 33126468 PMCID: PMC7692845 DOI: 10.3390/polym12112506] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 10/23/2020] [Accepted: 10/26/2020] [Indexed: 02/06/2023] Open
Abstract
The lack of in vitro models that represent the native tumor microenvironment is a significant challenge for cancer research. Two-dimensional (2D) monolayer culture has long been the standard for in vitro cell-based studies. However, differences between 2D culture and the in vivo environment have led to poor translation of cancer research from in vitro to in vivo models, slowing the progress of the field. Recent advances in three-dimensional (3D) culture have improved the ability of in vitro culture to replicate in vivo conditions. Although 3D cultures still cannot achieve the complexity of the in vivo environment, they can still better replicate the cell-cell and cell-matrix interactions of solid tumors. Multicellular tumor spheroids (MCTS) are three-dimensional (3D) clusters of cells with tumor-like features such as oxygen gradients and drug resistance, and represent an important translational tool for cancer research. Accordingly, natural and synthetic polymers, including collagen, hyaluronic acid, Matrigel®, polyethylene glycol (PEG), alginate and chitosan, have been used to form and study MCTS for improved clinical translatability. This review evaluates the current state of biomaterial-based MCTS formation, including advantages and disadvantages of the different biomaterials and their recent applications to the field of cancer research, with a focus on the past five years.
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44
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Lee SC, Gillispie G, Prim P, Lee SJ. Physical and Chemical Factors Influencing the Printability of Hydrogel-based Extrusion Bioinks. Chem Rev 2020; 120:10834-10886. [PMID: 32815369 PMCID: PMC7673205 DOI: 10.1021/acs.chemrev.0c00015] [Citation(s) in RCA: 84] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Bioprinting researchers agree that "printability" is a key characteristic for bioink development, but neither the meaning of the term nor the best way to experimentally measure it has been established. Furthermore, little is known with respect to the underlying mechanisms which determine a bioink's printability. A thorough understanding of these mechanisms is key to the intentional design of new bioinks. For the purposes of this review, the domain of printability is defined as the bioink requirements which are unique to bioprinting and occur during the printing process. Within this domain, the different aspects of printability and the factors which influence them are reviewed. The extrudability, filament classification, shape fidelity, and printing accuracy of bioinks are examined in detail with respect to their rheological properties, chemical structure, and printing parameters. These relationships are discussed and areas where further research is needed, are identified. This review serves to aid the bioink development process, which will continue to play a major role in the successes and failures of bioprinting, tissue engineering, and regenerative medicine going forward.
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Affiliation(s)
- Sang Cheon Lee
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina 27157 , USA
- Department of Maxillofacial Biomedical Engineering and Institute of Oral Biology, School of Dentistry, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Gregory Gillispie
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina 27157 , USA
- School of Biomedical Engineering and Sciences, Wake Forest University-Virginia Tech, Winston-Salem, North Carolina 27157, USA
| | - Peter Prim
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina 27157 , USA
| | - Sang Jin Lee
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina 27157 , USA
- School of Biomedical Engineering and Sciences, Wake Forest University-Virginia Tech, Winston-Salem, North Carolina 27157, USA
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45
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Clegg J, Koch MK, Thompson EW, Haupt LM, Kalita-de Croft P, Bray LJ. Three-Dimensional Models as a New Frontier for Studying the Role of Proteoglycans in the Normal and Malignant Breast Microenvironment. Front Cell Dev Biol 2020; 8:569454. [PMID: 33163489 PMCID: PMC7581852 DOI: 10.3389/fcell.2020.569454] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 09/15/2020] [Indexed: 12/24/2022] Open
Abstract
The extracellular matrix (ECM) provides cues to direct mammogenesis, tumourigenesis and metastatic processes. Over the past several decades, two-dimensional (2D) culture models have been invaluable in furthering our understanding of the tumor microenvironment (TME), however, they still do not accurately emulate the associated biological complexities. In contrast, three-dimensional (3D) culture models provide a more physiologically relevant platform to study relevant physicochemical signals, stromal-epithelial cell interactions, vascular and immune components, and cell-ECM interactions in the human breast microenvironment. A common thread that may weave these multiple interactions are the proteoglycans (PGs), a prominent family of molecules in breast tissue. This review will discuss how these PGs contribute to the breast cancer TME and provide a summary of the traditional and emerging technologies that have been utilized to better understand the role of PGs during malignant transformation. Furthermore, this review will emphasize the differences that PGs exhibit between normal tissues and tumor ECM, providing a rationale for the investigation of underexplored roles of PGs in breast cancer progression using state-of-the-art 3D culture models.
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Affiliation(s)
- Julien Clegg
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Kelvin Grove, QLD, Australia
| | - Maria K Koch
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Kelvin Grove, QLD, Australia
| | - Erik W Thompson
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Kelvin Grove, QLD, Australia.,School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Brisbane, QLD, Australia.,Translational Research Institute, Woolloongabba, QLD, Australia
| | - Larisa M Haupt
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Kelvin Grove, QLD, Australia.,School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Brisbane, QLD, Australia.,Centre for Genomics and Personalized Health, Genomics Research Centre, School of Biomedical Sciences, Institute of Health and Biomedical Innovation, Queensland University of Technology, Kelvin Grove, QLD, Australia
| | - Priyakshi Kalita-de Croft
- UQ Centre for Clinical Research, Faculty of Medicine, University of Queensland, Herston, QLD, Australia
| | - Laura J Bray
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Kelvin Grove, QLD, Australia.,Translational Research Institute, Woolloongabba, QLD, Australia.,Faculty of Science and Engineering, School of Mechanical, Medical and Process Engineering, Queensland University of Technology, Brisbane, QLD, Australia
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46
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Arkenberg MR, Nguyen HD, Lin CC. Recent advances in bio-orthogonal and dynamic crosslinking of biomimetic hydrogels. J Mater Chem B 2020; 8:7835-7855. [PMID: 32692329 PMCID: PMC7574327 DOI: 10.1039/d0tb01429j] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
In recent years, dynamic, 'click' hydrogels have been applied in numerous biomedical applications. Owing to the mild, cytocompatible, and highly specific reaction kinetics, a multitude of orthogonal handles have been developed for fabricating dynamic hydrogels to facilitate '4D' cell culture. The high degree of tunability in crosslinking reactions of orthogonal 'click' chemistry has enabled a bottom-up approach to install specific biomimicry in an artificial extracellular matrix. In addition to click chemistry, highly specific enzymatic reactions are also increasingly used for network crosslinking and for spatiotemporal control of hydrogel properties. On the other hand, covalent adaptable chemistry has been used to recapitulate the viscoelastic component of biological tissues and for formulating self-healing and shear-thinning hydrogels. The common feature of these three classes of chemistry (i.e., orthogonal click chemistry, enzymatic reactions, and covalent adaptable chemistry) is that they can be carried out under ambient and aqueous conditions, a prerequisite for maintaining cell viability for in situ cell encapsulation and post-gelation modification of network properties. Due to their orthogonality, different chemistries can also be applied sequentially to provide additional biochemical and mechanical control to guide cell behavior. Herein, we review recent advances in the use of orthogonal click chemistry, enzymatic reactions, and covalent adaptable chemistry for the development of dynamically tunable and biomimetic hydrogels.
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Affiliation(s)
- Matthew R Arkenberg
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN 47907, USA.
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47
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Fisher MF, Rao SS. Three‐dimensional culture models to study drug resistance in breast cancer. Biotechnol Bioeng 2020; 117:2262-2278. [DOI: 10.1002/bit.27356] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 03/27/2020] [Accepted: 04/14/2020] [Indexed: 12/14/2022]
Affiliation(s)
- Madeline F. Fisher
- Department of Chemical and Biological Engineering The University of Alabama Tuscaloosa Alabama
| | - Shreyas S. Rao
- Department of Chemical and Biological Engineering The University of Alabama Tuscaloosa Alabama
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48
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Delplace V, Pickering AJ, Hettiaratchi MH, Zhao S, Kivijärvi T, Shoichet MS. Inverse Electron-Demand Diels–Alder Methylcellulose Hydrogels Enable the Co-delivery of Chondroitinase ABC and Neural Progenitor Cells. Biomacromolecules 2020; 21:2421-2431. [DOI: 10.1021/acs.biomac.0c00357] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Vianney Delplace
- Department of Chemical Engineering & Applied Chemistry, University of Toronto, 200 College Street, Toronto, ON M5S 3E5, Canada
| | - Andrew J. Pickering
- Department of Chemical Engineering & Applied Chemistry, University of Toronto, 200 College Street, Toronto, ON M5S 3E5, Canada
| | - Marian H. Hettiaratchi
- Department of Chemical Engineering & Applied Chemistry, University of Toronto, 200 College Street, Toronto, ON M5S 3E5, Canada
| | - Spencer Zhao
- Department of Chemical Engineering & Applied Chemistry, University of Toronto, 200 College Street, Toronto, ON M5S 3E5, Canada
| | - Tove Kivijärvi
- Department of Chemical Engineering & Applied Chemistry, University of Toronto, 200 College Street, Toronto, ON M5S 3E5, Canada
- Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Molly S. Shoichet
- Department of Chemical Engineering & Applied Chemistry, University of Toronto, 200 College Street, Toronto, ON M5S 3E5, Canada
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, 164 College Street, Toronto, ON M5S 3G9, Canada
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49
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Baker AEG, Bahlmann LC, Tam RY, Liu JC, Ganesh AN, Mitrousis N, Marcellus R, Spears M, Bartlett JMS, Cescon DW, Bader GD, Shoichet MS. Benchmarking to the Gold Standard: Hyaluronan-Oxime Hydrogels Recapitulate Xenograft Models with In Vitro Breast Cancer Spheroid Culture. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1901166. [PMID: 31322299 DOI: 10.1002/adma.201901166] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 06/28/2019] [Indexed: 06/10/2023]
Abstract
Many 3D in vitro models induce breast cancer spheroid formation; however, this alone does not recapitulate the complex in vivo phenotype. To effectively screen therapeutics, it is urgently needed to validate in vitro cancer spheroid models against the gold standard of xenografts. A new oxime-crosslinked hyaluronan (HA) hydrogel is designed, manipulating gelation rate and mechanical properties to grow breast cancer spheroids in 3D. This HA-oxime breast cancer model maintains the gene expression profile most similar to that of tumor xenografts based on a pan-cancer gene expression profile (comprising 730 genes) of three different human breast cancer subtypes compared to Matrigel or conventional 2D culture. Differences in gene expression between breast cancer cultures in HA-oxime versus Matrigel or 2D are confirmed for 12 canonical pathways by gene set variation analysis. Importantly, drug response is dependent on the culture method. Breast cancer cells respond better to the Rac inhibitor (EHT-1864) and the PI3K inhibitor (AZD6482) when cultured in HA-oxime versus Matrigel. This study demonstrates the superiority of an HA-based hydrogel as a platform for in vitro breast cancer culture of both primary, patient-derived cells and cell lines, and provides a hydrogel culture model that closely matches that in vivo.
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Affiliation(s)
- Alexander E G Baker
- The Donnelly Centre, University of Toronto, Toronto, 160 College St, Ontario, M5S 3E1, Canada
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, Ontario, M5S 3E5, Canada
- Institute of Biomaterials and Biomedical Engineering, 164 College Street, Toronto, Ontario, M5S 3G9, Canada
| | - Laura C Bahlmann
- The Donnelly Centre, University of Toronto, Toronto, 160 College St, Ontario, M5S 3E1, Canada
- Institute of Biomaterials and Biomedical Engineering, 164 College Street, Toronto, Ontario, M5S 3G9, Canada
| | - Roger Y Tam
- The Donnelly Centre, University of Toronto, Toronto, 160 College St, Ontario, M5S 3E1, Canada
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, Ontario, M5S 3E5, Canada
- Institute of Biomaterials and Biomedical Engineering, 164 College Street, Toronto, Ontario, M5S 3G9, Canada
| | - Jeffrey C Liu
- The Donnelly Centre, University of Toronto, Toronto, 160 College St, Ontario, M5S 3E1, Canada
- Institute of Biomaterials and Biomedical Engineering, 164 College Street, Toronto, Ontario, M5S 3G9, Canada
| | - Ahil N Ganesh
- The Donnelly Centre, University of Toronto, Toronto, 160 College St, Ontario, M5S 3E1, Canada
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, Ontario, M5S 3E5, Canada
- Institute of Biomaterials and Biomedical Engineering, 164 College Street, Toronto, Ontario, M5S 3G9, Canada
| | - Nikolaos Mitrousis
- The Donnelly Centre, University of Toronto, Toronto, 160 College St, Ontario, M5S 3E1, Canada
- Institute of Biomaterials and Biomedical Engineering, 164 College Street, Toronto, Ontario, M5S 3G9, Canada
| | - Richard Marcellus
- Ontario Institute for Cancer Research, MaRS Centre, 661 University Avenue, Toronto, Ontario, M5G 0A3, Canada
| | - Melanie Spears
- Ontario Institute for Cancer Research, MaRS Centre, 661 University Avenue, Toronto, Ontario, M5G 0A3, Canada
- Department of Laboratory Medicine and Pathology, University of Toronto, 1 King's College Circle, Toronto, Ontario, M5S 1A8, Canada
| | - John M S Bartlett
- Ontario Institute for Cancer Research, MaRS Centre, 661 University Avenue, Toronto, Ontario, M5G 0A3, Canada
| | - David W Cescon
- Princess Margaret Cancer Centre, University Health Network, 610 University Ave., Toronto, Ontario, M5G 2C1, Canada
| | - Gary D Bader
- The Donnelly Centre, University of Toronto, Toronto, 160 College St, Ontario, M5S 3E1, Canada
| | - Molly S Shoichet
- The Donnelly Centre, University of Toronto, Toronto, 160 College St, Ontario, M5S 3E1, Canada
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, Ontario, M5S 3E5, Canada
- Institute of Biomaterials and Biomedical Engineering, 164 College Street, Toronto, Ontario, M5S 3G9, Canada
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3H6, Canada
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50
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Wei H, Yang X, Chu H, Li J. Facile and green preparation of thermal and ph sensitive hydrogel microspheres based on spray drying and the diels–alder reaction. POLYM ENG SCI 2019. [DOI: 10.1002/pen.25198] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Hongliang Wei
- College of Chemistry, Chemical and Environmental EngineeringHenan University of Technology Zhengzhou 450001 People's Republic of China
| | - Xiaoqing Yang
- College of Chemistry, Chemical and Environmental EngineeringHenan University of Technology Zhengzhou 450001 People's Republic of China
| | - Huijuan Chu
- College of Chemistry, Chemical and Environmental EngineeringHenan University of Technology Zhengzhou 450001 People's Republic of China
| | - Jingjing Li
- College of Chemistry, Chemical and Environmental EngineeringHenan University of Technology Zhengzhou 450001 People's Republic of China
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