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Wu D, Gong T, Sun Z, Yao X, Wang D, Chen Q, Guo Q, Li X, Guo Y, Lu Y. Dual-crosslinking gelatin-hyaluronic acid methacrylate based biomimetic PDAC desmoplastic niche enhances tumor-associated macrophages recruitment and M2-like polarization. Int J Biol Macromol 2024; 269:131826. [PMID: 38679256 DOI: 10.1016/j.ijbiomac.2024.131826] [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: 12/28/2023] [Revised: 03/18/2024] [Accepted: 04/22/2024] [Indexed: 05/01/2024]
Abstract
The tumor microenvironment (TME) of pancreatic ductal adenocarcinoma (PDAC) is characterized by deposition of desmoplastic matrix (including collagen and hyaluronic acid). And the interactions between tumor-associated macrophages (TAMs) and tumor cells play a crucial role in progression of PDAC. Hence, the appropriate model of tumor cell-macrophage interaction within the unique PDAC TME is of significantly important. To this end, a 3D tumor niche based on dual-crosslinking gelatin methacrylate and hyaluronic acid methacrylate hydrogels was constructed to simulate the desmoplastic tumor matrix with matching compressive modulus and composition. The bionic 3D tumor niche creates an immunosuppressive microenvironment characterized by the downregulation of M1 markers and upregulation of M2 markers in TAMs. Mechanistically, RNA-seq analysis revealed that the PI3K-AKT signaling pathway might modulate the phenotypic balance and recruitment of macrophages through regulating SELE and VCAM-1. Furthermore, GO and GSEA revealed the biological process of leukocyte migration and the activation of cytokine-associated signaling were involved. Finally, the 3D tumor-macrophage niches with three different ratios were fabricated which displayed increased M2-like polarization and stemness. The utilization of the 3D tumor niche has the potential to provide a more accurate investigation of the interplay between PDAC tumor cells and macrophages within an in vivo setting.
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Affiliation(s)
- Di Wu
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, PR China; Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, Jiangsu province 226001, PR China
| | - Tiancheng Gong
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, PR China; Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, Jiangsu province 226001, PR China
| | - Zhongxiang Sun
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, Jiangsu province 226001, PR China
| | - Xihao Yao
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, PR China; Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, Jiangsu province 226001, PR China
| | - Dongzhi Wang
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, PR China; Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, Jiangsu province 226001, PR China
| | - Qiyang Chen
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, PR China; Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, Jiangsu province 226001, PR China
| | - Qingsong Guo
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, PR China
| | - Xiaohong Li
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, Jiangsu province 226001, PR China
| | - Yibing Guo
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, Jiangsu province 226001, PR China.
| | - Yuhua Lu
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, PR China.
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Liu YC, Chen P, Chang R, Liu X, Jhang JW, Enkhbat M, Chen S, Wang H, Deng C, Wang PY. Artificial tumor matrices and bioengineered tools for tumoroid generation. Biofabrication 2024; 16:022004. [PMID: 38306665 DOI: 10.1088/1758-5090/ad2534] [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: 08/10/2023] [Accepted: 02/01/2024] [Indexed: 02/04/2024]
Abstract
The tumor microenvironment (TME) is critical for tumor growth and metastasis. The TME contains cancer-associated cells, tumor matrix, and tumor secretory factors. The fabrication of artificial tumors, so-called tumoroids, is of great significance for the understanding of tumorigenesis and clinical cancer therapy. The assembly of multiple tumor cells and matrix components through interdisciplinary techniques is necessary for the preparation of various tumoroids. This article discusses current methods for constructing tumoroids (tumor tissue slices and tumor cell co-culture) for pre-clinical use. This article focuses on the artificial matrix materials (natural and synthetic materials) and biofabrication techniques (cell assembly, bioengineered tools, bioprinting, and microfluidic devices) used in tumoroids. This article also points out the shortcomings of current tumoroids and potential solutions. This article aims to promotes the next-generation tumoroids and the potential of them in basic research and clinical application.
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Affiliation(s)
- Yung-Chiang Liu
- Oujiang Laboratory; Key Laboratory of Alzheimer's Disease of Zhejiang Province, Institute of Aging, Wenzhou Medical University, Wenzhou, Zhejiang 325024, People's Republic of China
| | - Ping Chen
- Cancer Centre, Faculty of Health Sciences, MOE Frontier Science Centre for Precision Oncology, University of Macau, Macau SAR 999078, People's Republic of China
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, People's Republic of China
| | - Ray Chang
- Oujiang Laboratory; Key Laboratory of Alzheimer's Disease of Zhejiang Province, Institute of Aging, Wenzhou Medical University, Wenzhou, Zhejiang 325024, People's Republic of China
| | - Xingjian Liu
- Oujiang Laboratory; Key Laboratory of Alzheimer's Disease of Zhejiang Province, Institute of Aging, Wenzhou Medical University, Wenzhou, Zhejiang 325024, People's Republic of China
| | - Jhe-Wei Jhang
- Oujiang Laboratory; Key Laboratory of Alzheimer's Disease of Zhejiang Province, Institute of Aging, Wenzhou Medical University, Wenzhou, Zhejiang 325024, People's Republic of China
| | - Myagmartsend Enkhbat
- Department of Chemical Engineering, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada
| | - Shan Chen
- Oujiang Laboratory; Key Laboratory of Alzheimer's Disease of Zhejiang Province, Institute of Aging, Wenzhou Medical University, Wenzhou, Zhejiang 325024, People's Republic of China
| | - Hongxia Wang
- State Key Laboratory of Oncogenes and Related Genes, Department of Oncology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Chuxia Deng
- Cancer Centre, Faculty of Health Sciences, MOE Frontier Science Centre for Precision Oncology, University of Macau, Macau SAR 999078, People's Republic of China
| | - Peng-Yuan Wang
- Oujiang Laboratory; Key Laboratory of Alzheimer's Disease of Zhejiang Province, Institute of Aging, Wenzhou Medical University, Wenzhou, Zhejiang 325024, People's Republic of China
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Pol M, Gao H, Zhang H, George OJ, Fox JM, Jia X. Dynamic modulation of matrix adhesiveness induces epithelial-to-mesenchymal transition in prostate cancer cells in 3D. Biomaterials 2023; 299:122180. [PMID: 37267701 PMCID: PMC10330660 DOI: 10.1016/j.biomaterials.2023.122180] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 04/27/2023] [Accepted: 05/25/2023] [Indexed: 06/04/2023]
Abstract
Synthetic matrices with dynamic presentation of cell guidance cues are needed for the development of physiologically relevant in vitro tumor models. Towards the goal of mimicking prostate cancer progression and metastasis, we engineered a tunable hyaluronic acid-based hydrogel platform with protease degradable and cell adhesive properties employing bioorthogonal tetrazine ligation with strained alkenes. The synthetic matrix was first fabricated via a slow tetrazine-norbornene reaction, then temporally modified via a diffusion-controlled method using trans-cyclooctene, a fierce dienophile that reacts with tetrazine with an unusually fast rate. The encapsulated DU145 prostate cancer single cells spontaneously formed multicellular tumoroids after 7 days of culture. In situ modification of the synthetic matrix via covalent tagging of cell adhesive RGD peptide induced tumoroid decompaction and the development of cellular protrusions. RGD tagging did not compromise the overall cell viability, nor did it induce cell apoptosis. In response to increased matrix adhesiveness, DU145 cells dynamically loosen cell-cell adhesion and strengthen cell-matrix interactions to promote an invasive phenotype. Characterization of the 3D cultures by immunocytochemistry and gene expression analyses demonstrated that cells invaded into the matrix via a mesenchymal like migration, with upregulation of major mesenchymal markers, and down regulation of epithelial markers. The tumoroids formed cortactin positive invadopodia like structures, indicating active matrix remodeling. Overall, the engineered tumor model can be utilized to identify potential molecular targets and test pharmacological inhibitors, thereby accelerating the design of innovative strategies for cancer therapeutics.
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Affiliation(s)
- Mugdha Pol
- Department of Biological Sciences, University of Delaware, Newark, DE, USA
| | - Hanyuan Gao
- Department of Materials Science and Engineering, University of Delaware, Newark, DE, USA
| | - He Zhang
- Department of Materials Science and Engineering, University of Delaware, Newark, DE, USA
| | - Olivia J George
- Department of Materials Science and Engineering, University of Delaware, Newark, DE, USA
| | - Joseph M Fox
- Department of Materials Science and Engineering, University of Delaware, Newark, DE, USA; Department of Chemistry and Biochemistry, University of Delaware, Newark, DE, USA
| | - Xinqiao Jia
- Department of Biological Sciences, University of Delaware, Newark, DE, USA; Department of Materials Science and Engineering, University of Delaware, Newark, DE, USA; Department of Biomedical Engineering, University of Delaware, Newark, DE, USA; Delaware Biotechnology Institute, University of Delaware, Newark, DE, USA.
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Wang X, Cui L, Hong J, Wang Z, Li J, Liu Z, Zhu Z, Hao Y, Cheng G, Jiang J. Incorporating GSE4 peptide in PEG/hyaluronic acid hydrogels to promote the alveolar epithelial differentiation of mesenchymal stem cells. POLYMER 2023. [DOI: 10.1016/j.polymer.2023.125861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
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Luo Z, Zhou X, Mandal K, He N, Wennerberg W, Qu M, Jiang X, Sun W, Khademhosseini A. Reconstructing the tumor architecture into organoids. Adv Drug Deliv Rev 2021; 176:113839. [PMID: 34153370 PMCID: PMC8560135 DOI: 10.1016/j.addr.2021.113839] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 06/11/2021] [Accepted: 06/14/2021] [Indexed: 02/07/2023]
Abstract
Cancer remains a leading health burden worldwide. One of the challenges hindering cancer therapy development is the substantial discrepancies between the existing cancer models and the tumor microenvironment (TME) of human patients. Constructing tumor organoids represents an emerging approach to recapitulate the pathophysiological features of the TME in vitro. Over the past decade, various approaches have been demonstrated to engineer tumor organoids as in vitro cancer models, such as incorporating multiple cellular populations, reconstructing biophysical and chemical traits, and even recapitulating structural features. In this review, we focus on engineering approaches for building tumor organoids, including biomaterial-based, microfabrication-assisted, and synthetic biology-facilitated strategies. Furthermore, we summarize the applications of engineered tumor organoids in basic cancer research, cancer drug discovery, and personalized medicine. We also discuss the challenges and future opportunities in using tumor organoids for broader applications.
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Affiliation(s)
- Zhimin Luo
- Department of Bioengineering, California NanoSystems Institute and Center for Minimally Invasive Therapeutics, University of California, Los Angeles, Los Angeles, CA 90095, USA; School of Pharmacy, Xi'an Jiaotong University, Xi'an 710061, China
| | - Xingwu Zhou
- Department of Bioengineering, California NanoSystems Institute and Center for Minimally Invasive Therapeutics, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Pharmaceutical Sciences, University of Michigan, Ann Arbor, MI 48109, USA
| | - Kalpana Mandal
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA 90064, USA
| | - Na He
- School of Pharmacy, Xi'an Jiaotong University, Xi'an 710061, China
| | - Wally Wennerberg
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA 90064, USA
| | - Moyuan Qu
- Department of Bioengineering, California NanoSystems Institute and Center for Minimally Invasive Therapeutics, University of California, Los Angeles, Los Angeles, CA 90095, USA; Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Clinical Research Center for Oral Diseases of Zhejiang Province, Key Laboratory of Oral Biomedical Research of Zhejiang Province, and Cancer Center of Zhejiang University, Hangzhou 310006, China
| | - Xing Jiang
- Department of Bioengineering, California NanoSystems Institute and Center for Minimally Invasive Therapeutics, University of California, Los Angeles, Los Angeles, CA 90095, USA; School of Nursing, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Wujin Sun
- Department of Bioengineering, California NanoSystems Institute and Center for Minimally Invasive Therapeutics, University of California, Los Angeles, Los Angeles, CA 90095, USA; Terasaki Institute for Biomedical Innovation, Los Angeles, CA 90064, USA.
| | - Ali Khademhosseini
- Department of Bioengineering, California NanoSystems Institute and Center for Minimally Invasive Therapeutics, University of California, Los Angeles, Los Angeles, CA 90095, USA; Terasaki Institute for Biomedical Innovation, Los Angeles, CA 90064, USA; Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, CA 90095, USA; Jonsson Comprehensive Cancer Center, Department of Radiology, University of California, Los Angeles, Los Angeles, CA 90095, USA.
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6
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Thai VL, Griffin KH, Thorpe SW, Randall RL, Leach JK. Tissue engineered platforms for studying primary and metastatic neoplasm behavior in bone. J Biomech 2021; 115:110189. [PMID: 33385867 PMCID: PMC7855491 DOI: 10.1016/j.jbiomech.2020.110189] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 12/02/2020] [Accepted: 12/11/2020] [Indexed: 12/19/2022]
Abstract
Cancer is the second leading cause of death in the United States, claiming more than 560,000 lives each year. Osteosarcoma (OS) is the most common primary malignant tumor of bone in children and young adults, while bone is a common site of metastasis for tumors initiating from other tissues. The heterogeneity, continual evolution, and complexity of this disease at different stages of tumor progression drives a critical need for physiologically relevant models that capture the dynamic cancer microenvironment and advance chemotherapy techniques. Monolayer cultures have been favored for cell-based research for decades due to their simplicity and scalability. However, the nature of these models makes it impossible to fully describe the biomechanical and biochemical cues present in 3-dimensional (3D) microenvironments, such as ECM stiffness, degradability, surface topography, and adhesivity. Biomaterials have emerged as valuable tools to model the behavior of various cancers by creating highly tunable 3D systems for studying neoplasm behavior, screening chemotherapeutic drugs, and developing novel treatment delivery techniques. This review highlights the recent application of biomaterials toward the development of tumor models, details methods for their tunability, and discusses the clinical and therapeutic applications of these systems.
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Affiliation(s)
- Victoria L Thai
- Department of Biomedical Engineering, University of California, Davis, Davis, CA 95616, United States
| | - Katherine H Griffin
- Department of Biomedical Engineering, University of California, Davis, Davis, CA 95616, United States; School of Veterinary Medicine, University of California, Davis, Davis, CA 95616, United States
| | - Steven W Thorpe
- Department of Orthopaedic Surgery, UC Davis Health, Sacramento, CA 95817, United States
| | - R Lor Randall
- Department of Orthopaedic Surgery, UC Davis Health, Sacramento, CA 95817, United States
| | - J Kent Leach
- Department of Biomedical Engineering, University of California, Davis, Davis, CA 95616, United States; Department of Orthopaedic Surgery, UC Davis Health, Sacramento, CA 95817, United States.
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Bhattacharya S, Calar K, Evans C, Petrasko M, de la Puente P. Bioengineering the Oxygen-Deprived Tumor Microenvironment Within a Three-Dimensional Platform for Studying Tumor-Immune Interactions. Front Bioeng Biotechnol 2020; 8:1040. [PMID: 33015012 PMCID: PMC7498579 DOI: 10.3389/fbioe.2020.01040] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 08/11/2020] [Indexed: 12/18/2022] Open
Abstract
Oxygen deprivation within tumors is one of the most prevalent causes of resilient cancer cell survival and increased immune evasion in breast cancer (BCa). Current in vitro models do not adequately mimic physiological oxygen levels relevant to breast tissue and its tumor-immune interactions. In this study, we propose an approach to engineer a three-dimensional (3D) model (named 3D engineered oxygen, 3D-O) that supports the growth of BCa cells and generates physio- and pathophysiological oxygen levels to understand the role of oxygen availability in tumor-immune interactions. BCa cells (MDA-MB-231 and MCF-7) were embedded into plasma-derived 3D-O scaffolds that reflected physio- and pathophysiological oxygen levels relevant to the healthy and cancerous breast tissue. BCa cells grown within 3D-O scaffolds were analyzed by flow cytometry, confocal imaging, immunohistochemistry/immunofluorescence for cell proliferation, extracellular matrix protein expression, and alterations in immune evasive outcomes. Exosome secretion from 3D-O scaffolds were evaluated using the NanoSight particle analyzer. Peripheral blood mononuclear cells were incorporated on the top of 3D-O scaffolds and the difference in tumor-infiltrating capabilities as a result of different oxygen content were assessed by flow cytometry and confocal imaging. Lastly, hypoxia and Programmed death-ligand 1 (PD-L1) inhibition were validated as targets to sensitize BCa cells in order to overcome immune evasion. Low oxygen-induced adaptations within 3D-O scaffolds validated known tumor hypoxia characteristics such as reduced BCa cell proliferation, increased extracellular matrix protein expression, increased extracellular vesicle secretion and enhanced immune surface marker expression on BCa cells. We further demonstrated that low oxygen in 3D-O scaffolds significantly influence immune infiltration. CD8+ T cell infiltration was impaired under pathophysiological oxygen levels and we were also able to establish that hypoxia and PD-L1 inhibition re-sensitized BCa cells to cytotoxic CD8+ T cells. Bioengineering the oxygen-deprived BCa tumor microenvironment in our engineered 3D-O physiological and tumorous scaffolds supported known intra-tumoral hypoxia characteristics allowing the study of the role of oxygen availability in tumor-immune interactions. The 3D-O model could serve as a promising platform for the evaluation of immunological events and as a drug-screening platform tool to overcome hypoxia-driven immune evasion.
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Affiliation(s)
- Somshuvra Bhattacharya
- Cancer Biology and Immunotherapies Group, Sanford Research, Sioux Falls, SD, United States
| | - Kristin Calar
- Cancer Biology and Immunotherapies Group, Sanford Research, Sioux Falls, SD, United States
| | - Claire Evans
- Histology and Imaging Core, Sanford Research, Sioux Falls, SD, United States
| | - Mark Petrasko
- Cancer Biology and Immunotherapies Group, Sanford Research, Sioux Falls, SD, United States
- Sanford PROMISE, Sanford Research, Sioux Falls, SD, United States
| | - Pilar de la Puente
- Cancer Biology and Immunotherapies Group, Sanford Research, Sioux Falls, SD, United States
- Department of Surgery, University of South Dakota Sanford School of Medicine, Sioux Falls, SD, United States
- Flow Cytometry Core, Sanford Research, Sioux Falls, SD, United States
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8
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A fully degradable and photocrosslinked polysaccharide-polyphosphate hydrogel for tissue engineering. Carbohydr Polym 2019; 225:115257. [DOI: 10.1016/j.carbpol.2019.115257] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 08/24/2019] [Accepted: 08/26/2019] [Indexed: 12/20/2022]
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9
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Lian J, Xu H, Duan S, Ding X, Hu Y, Zhao N, Ding X, Xu FJ. Tunable Adhesion of Different Cell Types Modulated by Thermoresponsive Polymer Brush Thickness. Biomacromolecules 2019; 21:732-742. [DOI: 10.1021/acs.biomac.9b01437] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Jiamin Lian
- State Key Laboratory of Chemical Resource Engineering, Beijing Laboratory of Biomedical Materials, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Key Lab of Biomedical Materials of Natural Macromolecules (Beijing University of Chemical Technology), Ministry of Education, Beijing 100029, China
| | - Haifeng Xu
- State Key Laboratory of Chemical Resource Engineering, Beijing Laboratory of Biomedical Materials, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Key Lab of Biomedical Materials of Natural Macromolecules (Beijing University of Chemical Technology), Ministry of Education, Beijing 100029, China
| | - Shun Duan
- State Key Laboratory of Chemical Resource Engineering, Beijing Laboratory of Biomedical Materials, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Key Lab of Biomedical Materials of Natural Macromolecules (Beijing University of Chemical Technology), Ministry of Education, Beijing 100029, China
| | - Xuejia Ding
- State Key Laboratory of Chemical Resource Engineering, Beijing Laboratory of Biomedical Materials, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Key Lab of Biomedical Materials of Natural Macromolecules (Beijing University of Chemical Technology), Ministry of Education, Beijing 100029, China
| | - Yang Hu
- State Key Laboratory of Chemical Resource Engineering, Beijing Laboratory of Biomedical Materials, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Key Lab of Biomedical Materials of Natural Macromolecules (Beijing University of Chemical Technology), Ministry of Education, Beijing 100029, China
| | - Nana Zhao
- State Key Laboratory of Chemical Resource Engineering, Beijing Laboratory of Biomedical Materials, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Key Lab of Biomedical Materials of Natural Macromolecules (Beijing University of Chemical Technology), Ministry of Education, Beijing 100029, China
| | - Xiaokang Ding
- State Key Laboratory of Chemical Resource Engineering, Beijing Laboratory of Biomedical Materials, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Key Lab of Biomedical Materials of Natural Macromolecules (Beijing University of Chemical Technology), Ministry of Education, Beijing 100029, China
| | - Fu-Jian Xu
- State Key Laboratory of Chemical Resource Engineering, Beijing Laboratory of Biomedical Materials, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Key Lab of Biomedical Materials of Natural Macromolecules (Beijing University of Chemical Technology), Ministry of Education, Beijing 100029, China
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Liu J, Ni R, Chau Y. A self-assembled peptidic nanomillipede to fabricate a tuneable hybrid hydrogel. Chem Commun (Camb) 2019; 55:7093-7096. [DOI: 10.1039/c9cc02967b] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Peptidic ‘nanomillipede’, consisting of worm-like nanoscale ‘body’ and cysteine-terminated ‘legs’, was synthesized, tuned (with ultrasound) and utilized to crosslink the vinyl sulfone-modified dextran to form hybrid hydrogels with soft-tissue mimicking tuneable mechanical strength, self-healing property, and tuneable shear-thinning property, thereby indicating their potential use in tissue engineering and drug delivery.
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Affiliation(s)
- Jianhui Liu
- Department of Chemical and Biological Engineering
- the Hong Kong University of Science and Technology
- Clear Water Bay
- Hong Kong
| | - Rong Ni
- Department of Chemical and Biological Engineering
- the Hong Kong University of Science and Technology
- Clear Water Bay
- Hong Kong
- Institute for Advanced Study
| | - Ying Chau
- Department of Chemical and Biological Engineering
- the Hong Kong University of Science and Technology
- Clear Water Bay
- Hong Kong
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11
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Hainline KM, Gu F, Handley JF, Tian YF, Wu Y, de Wet L, Vander Griend DJ, Collier JH. Self-Assembling Peptide Gels for 3D Prostate Cancer Spheroid Culture. Macromol Biosci 2018; 19:e1800249. [PMID: 30324687 DOI: 10.1002/mabi.201800249] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 09/13/2018] [Indexed: 12/11/2022]
Abstract
Progress in prostate cancer research is presently limited by a shortage of reliable in vitro model systems. The authors describe a novel self-assembling peptide, bQ13, which forms nanofibers and gels useful for the 3D culture of prostate cancer spheroids, with improved cytocompatibility compared to related fibrillizing peptides. The mechanical properties of bQ13 gels can be controlled by adjusting peptide concentration, with storage moduli ranging between 1 and 10 kPa. bQ13's ability to remain soluble at mildly basic pH considerably improved the viability of encapsulated cells compared to other self-assembling nanofiber-forming peptides. LNCaP cells formed spheroids in bQ13 gels with similar morphologies and sizes to those formed in Matrigel or RADA16-I. Moreover, prostate-specific antigen (PSA) is produced by LNCaP cells in all matrices, and PSA production is more responsive to enzalutamide treatment in bQ13 gels than in other fibrillized peptide gels. bQ13 represents an attractive platform for further tailoring within 3D cell culture systems.
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Affiliation(s)
- Kelly M Hainline
- Department of Biomedical Engineering, Duke University, Durham, NC, 27708, USA
| | - Fangqi Gu
- Department of Biomedical Engineering, Duke University, Durham, NC, 27708, USA
| | - Jacqueline F Handley
- Department of Surgery, Section of Urology, University of Chicago, Chicago, IL, 60637, USA
| | - Ye F Tian
- Department of Surgery, Section of Urology, University of Chicago, Chicago, IL, 60637, USA
| | - Yaoying Wu
- Department of Biomedical Engineering, Duke University, Durham, NC, 27708, USA
| | - Larischa de Wet
- Department of Surgery, Section of Urology, University of Chicago, Chicago, IL, 60637, USA
| | - Donald J Vander Griend
- Department of Surgery, Section of Urology, University of Chicago, Chicago, IL, 60637, USA
| | - Joel H Collier
- Department of Biomedical Engineering, Duke University, Durham, NC, 27708, USA
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12
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Hao Y, Song J, Ravikrishnan A, Dicker KT, Fowler EW, Zerdoum AB, Li Y, Zhang H, Rajasekaran AK, Fox JM, Jia X. Rapid Bioorthogonal Chemistry Enables in Situ Modulation of the Stem Cell Behavior in 3D without External Triggers. ACS APPLIED MATERIALS & INTERFACES 2018; 10:26016-26027. [PMID: 30015482 PMCID: PMC6214352 DOI: 10.1021/acsami.8b07632] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Chemical modification of engineered microenvironments surrounding living cells represents a means for directing cellular behaviors through cell-matrix interactions. Presented here is a temporally controlled method for modulating the properties of biomimetic, synthetic extracellular matrices (ECM) during live cell culture employing the rapid, bioorthogonal tetrazine ligation with trans-cyclooctene (TCO) dienophiles. This approach is diffusion-controlled, cytocompatible, and does not rely on light, catalysts, or other external triggers. Human bone-marrow-derived mesenchymal stem cells (hMSCs) were initially entrapped in a hydrogel prepared using hyaluronic acid carrying sulfhydryl groups (HA-SH) and a hydrophilic polymer bearing both acrylate and tetrazine groups (POM-AT). Inclusion of a matrix metalloprotease (MMP)-degradable peptidic cross-linker enabled hMSC-mediated remodeling of the synthetic environment. The resultant network displayed dangling tetrazine groups for subsequent conjugation with TCO derivatives. Two days later, the stiffness of the matrix was increased by adding chemically modified HA carrying multiple copies of TCO (HA-TCO) to the hMSC growth media surrounding the cell-laden gel construct. In response, cells developed small processes radially around the cell body without a significant alteration of the overall shape. By contrast, modification of the 3D matrix with a TCO-tagged cell-adhesive motif caused the resident cells to undergo significant actin polymerization, changing from a rounded shape to spindle morphology with long cellular processes. After additional 7 days of culture in the growth media, quantitative analysis showed that, at the mRNA level, RGD tagging upregulated cellular expression of MMP1, but downregulated the expression of collagen I/III and tenascin C. RGD tagging, however, was not sufficient to induce the classic osteoblastic, chondrogenic, adipogenic, or fibroblastic/myofibroblastic differentiation. The modular approach allows facile manipulation of synthetic ECM to modulate cell behavior, thus potentially applicable to the engineering of functional tissues or tissue models.
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Affiliation(s)
- Ying Hao
- Department of Materials Science and Engineering, University of Delaware, Newark, DE, 19716, USA
| | - Jiyeon Song
- Department of Materials Science and Engineering, University of Delaware, Newark, DE, 19716, USA
| | - Anitha Ravikrishnan
- Department of Materials Science and Engineering, University of Delaware, Newark, DE, 19716, USA
| | - Kevin T. Dicker
- Department of Materials Science and Engineering, University of Delaware, Newark, DE, 19716, USA
| | - Eric W. Fowler
- Department of Materials Science and Engineering, University of Delaware, Newark, DE, 19716, USA
| | - Aidan B. Zerdoum
- Department of Biomedical Engineering, University of Delaware, Newark, DE, 19716, USA
| | - Yi Li
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE, 19716, USA
| | - He Zhang
- Department of Materials Science and Engineering, University of Delaware, Newark, DE, 19716, USA
| | | | - Joseph M. Fox
- Department of Materials Science and Engineering, University of Delaware, Newark, DE, 19716, USA
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE, 19716, USA
| | - Xinqiao Jia
- Department of Materials Science and Engineering, University of Delaware, Newark, DE, 19716, USA
- Department of Biomedical Engineering, University of Delaware, Newark, DE, 19716, USA
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13
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Kim D, Jo A, Imani KBC, Kim D, Chung JW, Yoon J. Microfluidic Fabrication of Multistimuli-Responsive Tubular Hydrogels for Cellular Scaffolds. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:4351-4359. [PMID: 29553747 DOI: 10.1021/acs.langmuir.8b00453] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Stimuli-responsive hydrogel microfibers and microtubes are in great demand for biomedical applications due to their similarity to the native extracellular matrix. In this study, we prepared pH- and temperature-responsive hydrogel microfibers and microtubes using a microfluidic device through alginate-templated photopolymerization. Hydrogel monomer solutions containing N-isopropylacrylamide (NIPAm) and sodium acrylate (SA) or allyl amine (AA) were irradiated with UV light to invoke in situ photopolymerization. A repulsive force between the ionized SA or AA groups caused by protonation/deprotonation of the acrylate or amine groups, respectively, led to changes in the diameters and wall thicknesses of the fibers and/or tubes depending on the pH of the medium. Poly(NIPAm) is a well-known thermally responsive polymer wherein the NIPAm-based copolymer microfibers exhibited a thermal behavior close to the lower critical solution temperature. We have demonstrated that these multistimuli-responsive volume changes are fully reversible and repeatable. Furthermore, the positively charged microfibers were shown to exhibit cell adhesion, and the number of cells attached to the microfibers could be further increased by supplying nutrients, presenting the possibility of their application in tissue engineering and other biomedical fields.
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Affiliation(s)
| | | | - Kusuma Betha Cahaya Imani
- Department of Chemistry Education, Graduate Department of Chemical Materials, and Institute for Plastic Information and Energy Materials , Pusan National University , 2 Busandaehak-ro 63 beon-gil , Geumjeong-gu, Busan , 46241 , Republic of Korea
| | - Dowan Kim
- Department of Chemistry Education, Graduate Department of Chemical Materials, and Institute for Plastic Information and Energy Materials , Pusan National University , 2 Busandaehak-ro 63 beon-gil , Geumjeong-gu, Busan , 46241 , Republic of Korea
| | | | - Jinhwan Yoon
- Department of Chemistry Education, Graduate Department of Chemical Materials, and Institute for Plastic Information and Energy Materials , Pusan National University , 2 Busandaehak-ro 63 beon-gil , Geumjeong-gu, Busan , 46241 , Republic of Korea
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14
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Rodenhizer D, Dean T, D'Arcangelo E, McGuigan AP. The Current Landscape of 3D In Vitro Tumor Models: What Cancer Hallmarks Are Accessible for Drug Discovery? Adv Healthc Mater 2018; 7:e1701174. [PMID: 29350495 DOI: 10.1002/adhm.201701174] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 11/16/2017] [Indexed: 12/11/2022]
Abstract
Cancer prognosis remains a lottery dependent on cancer type, disease stage at diagnosis, and personal genetics. While investment in research is at an all-time high, new drugs are more likely to fail in clinical trials today than in the 1970s. In this review, a summary of current survival statistics in North America is provided, followed by an overview of the modern drug discovery process, classes of models used throughout different stages, and challenges associated with drug development efficiency are highlighted. Then, an overview of the cancer hallmarks that drive clinical progression is provided, and the range of available clinical therapies within the context of these hallmarks is categorized. Specifically, it is found that historically, the development of therapies is limited to a subset of possible targets. This provides evidence for the opportunities offered by novel disease-relevant in vitro models that enable identification of novel targets that facilitate interactions between the tumor cells and their surrounding microenvironment. Next, an overview of the models currently reported in literature is provided, and the cancer biology they have been used to explore is highlighted. Finally, four priority areas are suggested for the field to accelerate adoption of in vitro tumour models for cancer drug discovery.
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Affiliation(s)
- Darren Rodenhizer
- Department of Chemical Engineering and Applied ChemistryUniversity of Toronto 200 College Street Toronto M5S 3E5 Canada
| | - Teresa Dean
- Institute of Biomaterials and Biomedical EngineeringUniversity of Toronto 200 College Street Toronto M5S 3E5 Canada
| | - Elisa D'Arcangelo
- Institute of Biomaterials and Biomedical EngineeringUniversity of Toronto 200 College Street Toronto M5S 3E5 Canada
| | - Alison P. McGuigan
- Department of Chemical Engineering and Applied Chemistry & Institute of Biomaterials and Biomedical EngineeringUniversity of Toronto 200 College Street Toronto M5S 3E5 Canada
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15
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Thakuri PS, Liu C, Luker GD, Tavana H. Biomaterials-Based Approaches to Tumor Spheroid and Organoid Modeling. Adv Healthc Mater 2018; 7:e1700980. [PMID: 29205942 PMCID: PMC5867257 DOI: 10.1002/adhm.201700980] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 09/21/2017] [Indexed: 12/22/2022]
Abstract
Evolving understanding of structural and biological complexity of tumors has stimulated development of physiologically relevant tumor models for cancer research and drug discovery. A major motivation for developing new tumor models is to recreate the 3D environment of tumors and context-mediated functional regulation of cancer cells. Such models overcome many limitations of standard monolayer cancer cell cultures. Under defined culture conditions, cancer cells self-assemble into 3D constructs known as spheroids. Additionally, cancer cells may recapitulate steps in embryonic development to self-organize into 3D cultures known as organoids. Importantly, spheroids and organoids reproduce morphology and biologic properties of tumors, providing valuable new tools for research, drug discovery, and precision medicine in cancer. This Progress Report discusses uses of both natural and synthetic biomaterials to culture cancer cells as spheroids or organoids, specifically highlighting studies that demonstrate how these models recapitulate key properties of native tumors. The report concludes with the perspectives on the utility of these models and areas of need for future developments to more closely mimic pathologic events in tumors.
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Affiliation(s)
- Pradip Shahi Thakuri
- Department of Biomedical Engineering, The University of Akron, Akron, OH, 44325, USA
| | - Chun Liu
- Departments of Radiology, Biomedical Engineering and Microbiology and Immunology, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Gary D Luker
- Departments of Radiology, Biomedical Engineering and Microbiology and Immunology, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Hossein Tavana
- Department of Biomedical Engineering, The University of Akron, Akron, OH, 44325, USA
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16
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Liaw CY, Ji S, Guvendiren M. Engineering 3D Hydrogels for Personalized In Vitro Human Tissue Models. Adv Healthc Mater 2018; 7. [PMID: 29345429 DOI: 10.1002/adhm.201701165] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2017] [Revised: 11/13/2017] [Indexed: 01/17/2023]
Abstract
There is a growing interest in engineering hydrogels for 3D tissue and disease models. The major motivation is to better mimic the physiological microenvironment of the disease and human condition. 3D tissue models derived from patients' own cells can potentially revolutionize the way treatment and diagnostic alternatives are developed. This requires development of tissue mimetic hydrogels with user defined and tunable properties. In this review article, a recent summary of 3D hydrogel platforms for in vitro tissue and disease modeling is given. Hydrogel design considerations and available hydrogel systems are summarized, followed by the types of currently available hydrogel models, such as bulk hydrogels, porous scaffolds, fibrous scaffolds, hydrogel microspheres, hydrogel sandwich systems, microwells, and 3D bioprinted constructs. Although hydrogels are utilized for a wide range of tissue models, this article focuses on liver and cancer models. This article also provides a detailed section on current challenges and future perspectives of hydrogel-based tissue models.
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Affiliation(s)
- Chya-Yan Liaw
- Instructive Biomaterials and Additive Manufacturing Laboratory; Otto H. York Chemical; Biological and Pharmaceutical Engineering; Newark College of Engineering; New Jersey Institute of Technology; University Heights; 138 York Center Newark NJ 07102 USA
| | - Shen Ji
- Instructive Biomaterials and Additive Manufacturing Laboratory; Otto H. York Chemical; Biological and Pharmaceutical Engineering; Newark College of Engineering; New Jersey Institute of Technology; University Heights; 138 York Center Newark NJ 07102 USA
| | - Murat Guvendiren
- Instructive Biomaterials and Additive Manufacturing Laboratory; Otto H. York Chemical; Biological and Pharmaceutical Engineering; Newark College of Engineering; New Jersey Institute of Technology; University Heights; 138 York Center Newark NJ 07102 USA
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17
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Hao Y, Fowler EW, Jia X. Chemical Synthesis of Biomimetic Hydrogels for Tissue Engineering. POLYM INT 2017; 66:1787-1799. [PMID: 31080322 PMCID: PMC6510501 DOI: 10.1002/pi.5407] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Owing to the high water content, porous structure, biocompatibility and tissue-like viscoelasticity, hydrogels have become attractive and promising biomaterials for use in drug delivery, 3D cell culture and tissue engineering applications. Various chemical approaches have been developed for hydrogel synthesis using monomers or polymers carrying reactive functional groups. For in vivo tissue repair and in vitro cell culture purposes, it is desirable that the crosslinking reactions occur under mild conditions, do not interfere with biological processes and proceed at high yield with exceptional selectivity. Additionally, the cross-linking reaction should allow straightforward incorporation of bioactive motifs or signaling molecules, at the same time, providing tunability of the hydrogel microstructure, mechanical properties, and degradation rates. In this review, we discuss various chemical approaches applied to the synthesis of complex hydrogel networks, highlighting recent developments from our group. The discovery of new chemistries and novel materials fabrication methods will lead to the development of the next generation biomimetic hydrogels with complex structures and diverse functionalities. These materials will likely facilitate the construction of engineered tissue models that may bridge the gap between 2D experiments and animal studies, providing preliminary insight prior to in vivo assessments.
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Affiliation(s)
- Ying Hao
- Department of Materials Science and Engineering, University of Delaware, Newark, DE 19716, USA
| | - Eric W. Fowler
- Department of Materials Science and Engineering, University of Delaware, Newark, DE 19716, USA
| | - Xinqiao Jia
- Department of Materials Science and Engineering, University of Delaware, Newark, DE 19716, USA
- Department of Biomedical Engineering, University of Delaware, Newark, DE 19716, USA
- Delaware Biotechnology Institute, University of Delaware, Newark, DE 19711, USA
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18
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Mazza G, Al-Akkad W, Rombouts K. Engineering in vitro models of hepatofibrogenesis. Adv Drug Deliv Rev 2017; 121:147-157. [PMID: 28578016 DOI: 10.1016/j.addr.2017.05.018] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 05/17/2017] [Accepted: 05/26/2017] [Indexed: 02/07/2023]
Abstract
Chronic liver disease is a major cause of morbidity and mortality worldwide marked by chronic inflammation and fibrosis/scarring, resulting in end-stage liver disease and its complications. Hepatic stellate cells (HSCs) are a dominant contributor to liver fibrosis by producing excessive extracellular matrix (ECM), irrespective of the underlying disease aetiologies, and for many decades research has focused on the development of a number of anti-fibrotic strategies targeting this cell. Despite major improvements in two-dimensional systems (2D) by using a variety of cell culture models of different complexity, an efficient anti-fibrogenic therapy has yet to be developed. The development of well-defined three-dimensional (3D) in vitro models, which mimic ECM structures as found in vivo, have demonstrated the importance of cell-matrix bio-mechanics, the complex interactions between HSCs and hepatocytes and other non-parenchymal cells, and this to improve and promote liver cell-specific functions. Henceforth, refinement of these 3D in vitro models, which reproduce the liver microenvironment, will lead to new objectives and to a possible new era in the search for antifibrogenic compounds.
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19
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Gajendiran M, Rhee JS, Kim K. Recent Developments in Thiolated Polymeric Hydrogels for Tissue Engineering Applications. TISSUE ENGINEERING PART B-REVIEWS 2017; 24:66-74. [PMID: 28726576 DOI: 10.1089/ten.teb.2016.0442] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
This review focuses on the recent strategy in the preparation of thiolated polymers and fabrication of their hydrogel matrices. The mechanism involved in the synthesis of thiolated polymers and fabrication of thiolated polymer hydrogels is exemplified with suitable schematic representations reported in the recent literature. The 2-iminothiolane namely "Traut's reagent" has been widely used for effectively thiolating the natural polymers such as collagen and gelatin, which contain free amino group in their backbone. The free carboxylic acid group containing polymers such as hyaluronic acid and heparin have been thiolated by using the bifunctional molecules such as cysteamine and L-cysteine via N-(3-dimethylaminopropyl)-N'-ethylcarbodiimide/N-hydroxysuccinimide (EDC/NHS) coupling reaction. The degree of thiolation in the polymer chain has been widely determined by using Ellman's assay method. The thiolated polymer hydrogels are prepared by disulfide bond formation (or) thiol-ene reaction (or) Michael-type addition reaction. The thiolated polymers such as thiolated gelatin are reacted with polyethylene glycol diacrylate for obtaining interpenetrating polymer network hydrogel scaffolds. Several in vitro cell culture experiments indicate that the developed thiolated polymer hydrogels exhibited biocompatibility and cellular mimicking properties. The developed hydrogel scaffolds efficiently support proliferation and differentiation of various cell types. In the present review article, the thiol-functionalized protein-based biopolymers, carbohydrate-based polymers, and some synthetic polymers have been covered with recently published research articles. In addition, the usage of new thiolated nanomaterials as a crosslinking agent for the preparation of three-dimensional tissue-engineered hydrogels is highlighted.
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Affiliation(s)
- Mani Gajendiran
- 1 Division of Bioengineering, College of Life Sciences and Bioengineering, Incheon National University , Incheon, Korea
| | - Jae-Sung Rhee
- 2 Department of Marine Science, College of Natural Sciences, Incheon National University , Incheon, Korea
| | - Kyobum Kim
- 1 Division of Bioengineering, College of Life Sciences and Bioengineering, Incheon National University , Incheon, Korea
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20
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Bu Y, Shen H, Yang F, Yang Y, Wang X, Wu D. Construction of Tough, in Situ Forming Double-Network Hydrogels with Good Biocompatibility. ACS APPLIED MATERIALS & INTERFACES 2017; 9:2205-2212. [PMID: 28029238 DOI: 10.1021/acsami.6b15364] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Hydrogels are required to have high mechanical properties, biocompatibility, and an easy fabrication process for biomedical applications. Double-network hydrogels, although strong, are limited because of the complicated preparation steps and toxic materials involved. In this study, we report a simple method to prepare tough, in situ forming polyethylene glycol (PEG)-agarose double-network (PEG-agarose DN) hydrogels with good biocompatibility. The hydrogels display excellent mechanical strength. Because of the easily in situ forming method, the resulting hydrogels can be molded into any form as needed. In vitro and in vivo experiments illustrate that the hydrogels exhibit satisfactory biocompatibility, and cells can attach and spread on the hydrogels. Furthermore, the residual amino groups in the network can also be functionalized for various biomedical applications in tissue engineering and cell research.
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Affiliation(s)
- Yazhong Bu
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China
- University of Chinese Academy of Sciences , Beijing 100049, PR China
| | - Hong Shen
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China
| | - Fei Yang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China
- University of Chinese Academy of Sciences , Beijing 100049, PR China
| | - Yanyu Yang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China
- University of Chinese Academy of Sciences , Beijing 100049, PR China
| | - Xing Wang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China
| | - Decheng Wu
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China
- University of Chinese Academy of Sciences , Beijing 100049, PR China
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