1
|
Fabrication of Cell Spheroids for 3D Cell Culture and Biomedical Applications. BIOCHIP JOURNAL 2022. [DOI: 10.1007/s13206-022-00086-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
2
|
Banerjee D, Singh YP, Datta P, Ozbolat V, O'Donnell A, Yeo M, Ozbolat IT. Strategies for 3D bioprinting of spheroids: A comprehensive review. Biomaterials 2022; 291:121881. [DOI: 10.1016/j.biomaterials.2022.121881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 10/04/2022] [Accepted: 10/23/2022] [Indexed: 11/17/2022]
|
3
|
Rossi M, Blasi P. Multicellular Tumor Spheroids in Nanomedicine Research: A Perspective. FRONTIERS IN MEDICAL TECHNOLOGY 2022; 4:909943. [PMID: 35782575 PMCID: PMC9240201 DOI: 10.3389/fmedt.2022.909943] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 05/24/2022] [Indexed: 12/15/2022] Open
Abstract
Multicellular tumor spheroids are largely exploited in cancer research since they are more predictive than bi-dimensional cell cultures. Nanomedicine would benefit from the integration of this three-dimensional in vitro model in screening protocols. In this brief work, we discuss some of the issues that cancer nanomedicine will need to consider in the switch from bi-dimensional to three-dimensional multicellular tumor spheroid models.
Collapse
|
4
|
De Stefano P, Bianchi E, Dubini G. The impact of microfluidics in high-throughput drug-screening applications. BIOMICROFLUIDICS 2022; 16:031501. [PMID: 35646223 PMCID: PMC9142169 DOI: 10.1063/5.0087294] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 05/02/2022] [Indexed: 05/05/2023]
Abstract
Drug discovery is an expensive and lengthy process. Among the different phases, drug discovery and preclinical trials play an important role as only 5-10 of all drugs that begin preclinical tests proceed to clinical trials. Indeed, current high-throughput screening technologies are very expensive, as they are unable to dispense small liquid volumes in an accurate and quick way. Moreover, despite being simple and fast, drug screening assays are usually performed under static conditions, thus failing to recapitulate tissue-specific architecture and biomechanical cues present in vivo even in the case of 3D models. On the contrary, microfluidics might offer a more rapid and cost-effective alternative. Although considered incompatible with high-throughput systems for years, technological advancements have demonstrated how this gap is rapidly reducing. In this Review, we want to further outline the role of microfluidics in high-throughput drug screening applications by looking at the multiple strategies for cell seeding, compartmentalization, continuous flow, stimuli administration (e.g., drug gradients or shear stresses), and single-cell analyses.
Collapse
Affiliation(s)
- Paola De Stefano
- Laboratory of Biological Structure Mechanics, Department of Chemistry, Materials and Chemical Engineering “G. Natta,” Politecnico di Milano, Italy
| | - Elena Bianchi
- Laboratory of Biological Structure Mechanics, Department of Chemistry, Materials and Chemical Engineering “G. Natta,” Politecnico di Milano, Italy
| | - Gabriele Dubini
- Laboratory of Biological Structure Mechanics, Department of Chemistry, Materials and Chemical Engineering “G. Natta,” Politecnico di Milano, Italy
| |
Collapse
|
5
|
|
6
|
Xia Y, Chen H, Li J, Hu H, Qian Q, He RX, Ding Z, Guo SS. Acoustic Droplet-Assisted Superhydrophilic-Superhydrophobic Microarray Platform for High-Throughput Screening of Patient-Derived Tumor Spheroids. ACS APPLIED MATERIALS & INTERFACES 2021; 13:23489-23501. [PMID: 33983701 DOI: 10.1021/acsami.1c06655] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Cell-based high-throughput screening is a key step in the current disease-based research, drug development, and precision medicine. However, it is challenging to establish a rapid culture and screening platform for rare cells (patient-derived) due to the obvious differences between the traditional 2D cell model and the tumor microenvironment, as well as the lack of a low-consumption screening platform for low numbers of cells. Here, we developed an acoustic drop-assisted superhydrophilic-superhydrophobic microarray platform for the rapid culture and screening of a few cells. By employing hydrophilic and hydrophobic microarrays, we can automatically distribute the cell suspension into uniform droplets, and these cells can spontaneously form compact 3D cell spheroids within 36 h (similar to the microenvironment of tumors in vivo). By using the acoustic droplet ejection device, we can accurately inject a drug solution with a volume of ∼pL to ∼nL into the droplet, and the whole process can be completed within 20 ms (one print). By using three different cell lines (Caco-2, MCF-7, and HeLa) to optimize the platform, the culture and screening of five patients' colon cancer were subsequently realized. Using three conventional chemotherapeutics (5-fluorouracil, cetuximab, and panitumumab) of various concentrations, the best treatment was screened out and compared with the actual treatment effect of the patients, and the results were extremely similar. As a proof-of-concept application, we have proved that our platform can quickly cultivate patient samples and effectively screen the best treatment methods, highlighting its wide application in precision medicine, basic tumor research, and drug development.
Collapse
Affiliation(s)
- Yu Xia
- Key Laboratory of Artificial Micro/Nano-Structures, Ministry of Education School of Physics and Technology, Wuhan University, Wuhan 430072, China
| | - Hui Chen
- Key Laboratory of Artificial Micro/Nano-Structures, Ministry of Education School of Physics and Technology, Wuhan University, Wuhan 430072, China
| | - Juan Li
- Key Laboratory of Artificial Micro/Nano-Structures, Ministry of Education School of Physics and Technology, Wuhan University, Wuhan 430072, China
| | - Hang Hu
- Department of Colorectal and Anal Surgery, Hubei Key Laboratory of Intestinal and Colorectal Diseases, Zhongnan Hospital of Wuhan University, Wuhan 430072, China
| | - Qun Qian
- Department of Colorectal and Anal Surgery, Hubei Key Laboratory of Intestinal and Colorectal Diseases, Zhongnan Hospital of Wuhan University, Wuhan 430072, China
| | - Rong-Xiang He
- Institute for Interdisciplinary Research & Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, Jianghan University, Wuhan 430056, China
| | - Zhao Ding
- Department of Colorectal and Anal Surgery, Hubei Key Laboratory of Intestinal and Colorectal Diseases, Zhongnan Hospital of Wuhan University, Wuhan 430072, China
| | - Shi-Shang Guo
- Key Laboratory of Artificial Micro/Nano-Structures, Ministry of Education School of Physics and Technology, Wuhan University, Wuhan 430072, China
| |
Collapse
|
7
|
Shen H, Cai S, Wu C, Yang W, Yu H, Liu L. Recent Advances in Three-Dimensional Multicellular Spheroid Culture and Future Development. MICROMACHINES 2021; 12:96. [PMID: 33477508 PMCID: PMC7831097 DOI: 10.3390/mi12010096] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Revised: 01/14/2021] [Accepted: 01/15/2021] [Indexed: 12/22/2022]
Abstract
Three-dimensional multicellular spheroids (MCSs) have received extensive attention in the field of biomedicine due to their ability to simulate the structure and function of tissues in vivo more accurately than traditional in vitro two-dimensional models and to simulate cell-cell and cell extracellular matrix (ECM) interactions. It has become an important in vitro three-dimensional model for tumor research, high-throughput drug screening, tissue engineering, and basic biology research. In the review, we first summarize methods for MCSs generation and their respective advantages and disadvantages and highlight the advances of hydrogel and microfluidic systems in the generation of spheroids. Then, we look at the application of MCSs in cancer research and other aspects. Finally, we discuss the development direction and prospects of MCSs.
Collapse
Affiliation(s)
- Honglin Shen
- School of Electromechanical and Automotive Engineering, Yantai University, Yantai 264005, China; (H.S.); (S.C.); (C.W.)
| | - Shuxiang Cai
- School of Electromechanical and Automotive Engineering, Yantai University, Yantai 264005, China; (H.S.); (S.C.); (C.W.)
| | - Chuanxiang Wu
- School of Electromechanical and Automotive Engineering, Yantai University, Yantai 264005, China; (H.S.); (S.C.); (C.W.)
| | - Wenguang Yang
- School of Electromechanical and Automotive Engineering, Yantai University, Yantai 264005, China; (H.S.); (S.C.); (C.W.)
| | - Haibo Yu
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China; (H.Y.); (L.L.)
| | - Lianqing Liu
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China; (H.Y.); (L.L.)
| |
Collapse
|
8
|
Sarigil O, Anil-Inevi M, Firatligil-Yildirir B, Unal YC, Yalcin-Ozuysal O, Mese G, Tekin HC, Ozcivici E. Scaffold-free biofabrication of adipocyte structures with magnetic levitation. Biotechnol Bioeng 2020; 118:1127-1140. [PMID: 33205833 DOI: 10.1002/bit.27631] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 10/27/2020] [Accepted: 11/15/2020] [Indexed: 12/16/2022]
Abstract
Tissue engineering research aims to repair the form and/or function of impaired tissues. Tissue engineering studies mostly rely on scaffold-based techniques. However, these techniques have certain challenges, such as the selection of proper scaffold material, including mechanical properties, sterilization, and fabrication processes. As an alternative, we propose a novel scaffold-free adipose tissue biofabrication technique based on magnetic levitation. In this study, a label-free magnetic levitation technique was used to form three-dimensional (3D) scaffold-free adipocyte structures with various fabrication strategies in a microcapillary-based setup. Adipogenic-differentiated 7F2 cells and growth D1 ORL UVA stem cells were used as model cells. The morphological properties of the 3D structures of single and cocultured cells were analyzed. The developed procedure leads to the formation of different patterns of single and cocultured adipocytes without a scaffold. Our results indicated that adipocytes formed loose structures while growth cells were tightly packed during 3D culture in the magnetic levitation platform. This system has potential for ex vivo modeling of adipose tissue for drug testing and transplantation applications for cell therapy in soft tissue damage. Also, it will be possible to extend this technique to other cell and tissue types.
Collapse
Affiliation(s)
- Oyku Sarigil
- Department of Bioengineering, Izmir Institute of Technology, Urla, Izmir, Turkey
| | - Muge Anil-Inevi
- Department of Bioengineering, Izmir Institute of Technology, Urla, Izmir, Turkey
| | | | - Yagmur Ceren Unal
- Department of Molecular Biology and Genetics, Izmir Institute of Technology, Urla, Izmir, Turkey
| | - Ozden Yalcin-Ozuysal
- Department of Molecular Biology and Genetics, Izmir Institute of Technology, Urla, Izmir, Turkey
| | - Gulistan Mese
- Department of Molecular Biology and Genetics, Izmir Institute of Technology, Urla, Izmir, Turkey
| | - H Cumhur Tekin
- Department of Bioengineering, Izmir Institute of Technology, Urla, Izmir, Turkey
| | - Engin Ozcivici
- Department of Bioengineering, Izmir Institute of Technology, Urla, Izmir, Turkey
| |
Collapse
|
9
|
Zhang X, Sun L, Yu Y, Zhao Y. Flexible Ferrofluids: Design and Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1903497. [PMID: 31583782 DOI: 10.1002/adma.201903497] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Revised: 07/13/2019] [Indexed: 06/10/2023]
Abstract
Ferrofluids, also known as ferromagnetic particle suspensions, are materials with an excellent magnetic response, which have attracted increasing interest in both industrial production and scientific research areas. Because of their outstanding features, such as rapid magnetic reaction, flexible flowability, as well as tunable optical and thermal properties, ferrofluids have found applications in various fields, including material science, physics, chemistry, biology, medicine, and engineering. Here, a comprehensive, in-depth insight into the diverse applications of ferrofluids from material fabrication, droplet manipulation, and biomedicine to energy and machinery is provided. Design of ferrofluid-related devices, recent developments, as well as present challenges and future prospects are also outlined.
Collapse
Affiliation(s)
- Xiaoxuan Zhang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Lingyu Sun
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Yunru Yu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Yuanjin Zhao
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
| |
Collapse
|
10
|
Jafari J, Han XL, Palmer J, Tran PA, O'Connor AJ. Remote Control in Formation of 3D Multicellular Assemblies Using Magnetic Forces. ACS Biomater Sci Eng 2019; 5:2532-2542. [PMID: 33405759 DOI: 10.1021/acsbiomaterials.9b00297] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Cell constructs have been utilized as building blocks in tissue engineering to closely mimic the natural tissue and also overcome some of the limitations caused by two-dimensional cultures or using scaffolds. External forces can be used to enhance the cells' adhesion and interaction and thus provide better control over production of these structures compared to methods like cell seeding and migration. In this paper, we demonstrate an efficient method to generate uniform, three-dimensional cell constructs using magnetic forces. This method produced spheroids with higher densities and more symmetrical structures than the commonly used centrifugation method for production of cell spheroids. It was also shown that shape of the cell constructs could be changed readily by using different patterns of magnetic field. The application of magnetic fields to impart forces on the cells enhanced the fusion of these spheroids, which could be used to produce larger and more complicated structures for future tissue engineering applications.
Collapse
Affiliation(s)
- Javad Jafari
- Department of Biomedical Engineering, Particulate Fluids Processing Centre, The University of Melbourne, Grattan St., Parkville, Victoria 3010, Australia
| | - Xiao-Lian Han
- O'Brien Institute Department, St. Vincent's Institute, 42 Fitzroy Street, Fitzroy, Victoria 3065, Australia
| | - Jason Palmer
- O'Brien Institute Department, St. Vincent's Institute, 42 Fitzroy Street, Fitzroy, Victoria 3065, Australia
| | - Phong A Tran
- Department of Biomedical Engineering, Particulate Fluids Processing Centre, The University of Melbourne, Grattan St., Parkville, Victoria 3010, Australia.,Interface Science and Materials Engineering Group, School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology (QUT), 2 George St., Brisbane, Queensland 4000, Australia
| | - Andrea J O'Connor
- Department of Biomedical Engineering, Particulate Fluids Processing Centre, The University of Melbourne, Grattan St., Parkville, Victoria 3010, Australia
| |
Collapse
|
11
|
Sokolova V, Rojas-Sánchez L, Białas N, Schulze N, Epple M. Calcium phosphate nanoparticle-mediated transfection in 2D and 3D mono- and co-culture cell models. Acta Biomater 2019; 84:391-401. [PMID: 30503560 DOI: 10.1016/j.actbio.2018.11.051] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 11/25/2018] [Accepted: 11/28/2018] [Indexed: 12/28/2022]
Abstract
The transfer of nucleic acids into living cells, i.e. transfection, is a major technique in current molecular biology and medicine. As nucleic acids alone are not able to penetrate the cell membrane, an efficient carrier is needed. Calcium phosphate nanoparticles can serve as carrier due to their biocompatibility, biodegradability and high affinity to nucleic acids like DNA or RNA. Their application was extended here from two-dimensional (2D) to three-dimensional (3D) cell culture models, including co-cultures. Compared to 2D monolayer cell cultures, a 3D culture system represents a more realistic spatial, biochemical and cellular environment. The uptake of fluorescent calcium phosphate nanoparticles (diameter 40-70 nm; cationic) was studied in 2D and 3D cell culture models by confocal laser scanning microscopy. The transfection of eGFP by calcium phosphate nanoparticles was compared in 2D and 3D cell culture, including co-cultures of green fluorescing HeLa-eGFP cells and MG-63 cells in 2D and in 3D models with the red fluorescent protein mCherry. This permitted a cell-specific assessment of the local transfection efficiency. In general, the penetration of nanoparticles into the spheroids was significantly higher than that of a model oligonucleotide carried by Lipofectamine. The transfection efficiency was comparable in 3D cell cultures with 2D cell cultures, but it occurred preferentially at the surface of the spheroids, following the uptake pathway of the nanoparticles. STATEMENT OF SIGNIFICANCE: Three-dimensional cell culture models can serve as a bridge between the in-vitro cell cultures and the in-vivo situation, especially when mass transfer effects have to be considered. This is the case for nanoparticles where the incubation effect in a two-dimensional cell culture strongly differs from a three-dimensional cell culture or a living tissue. We have compared the uptake of nanoparticles and a subsequent transfection of fluorescent proteins in two-dimensional and three-dimensional cell culture models. An elegant model to investigate the transfection in co-cultures was developed using HeLa-eGFP cells (green fluorescent) together with MG-63 cells (non-fluorescent) that were transfected with the red-fluorescing protein mCherry. Thereby, the transfection of both cell types in the co-culture was easily distinguished.
Collapse
|
12
|
Yaman S, Anil-Inevi M, Ozcivici E, Tekin HC. Magnetic Force-Based Microfluidic Techniques for Cellular and Tissue Bioengineering. Front Bioeng Biotechnol 2018; 6:192. [PMID: 30619842 PMCID: PMC6305723 DOI: 10.3389/fbioe.2018.00192] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Accepted: 11/23/2018] [Indexed: 01/21/2023] Open
Abstract
Live cell manipulation is an important biotechnological tool for cellular and tissue level bioengineering applications due to its capacity for guiding cells for separation, isolation, concentration, and patterning. Magnetic force-based cell manipulation methods offer several advantages, such as low adverse effects on cell viability and low interference with the cellular environment. Furthermore, magnetic-based operations can be readily combined with microfluidic principles by precisely allowing control over the spatiotemporal distribution of physical and chemical factors for cell manipulation. In this review, we present recent applications of magnetic force-based cell manipulation in cellular and tissue bioengineering with an emphasis on applications with microfluidic components. Following an introduction of the theoretical background of magnetic manipulation, components of magnetic force-based cell manipulation systems are described. Thereafter, different applications, including separation of certain cell fractions, enrichment of rare cells, and guidance of cells into specific macro- or micro-arrangements to mimic natural cell organization and function, are explained. Finally, we discuss the current challenges and limitations of magnetic cell manipulation technologies in microfluidic devices with an outlook on future developments in the field.
Collapse
|
13
|
Huang BW, Gao JQ. Application of 3D cultured multicellular spheroid tumor models in tumor-targeted drug delivery system research. J Control Release 2017; 270:246-259. [PMID: 29233763 DOI: 10.1016/j.jconrel.2017.12.005] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 12/05/2017] [Accepted: 12/06/2017] [Indexed: 12/11/2022]
Abstract
Tumor-targeted drug delivery systems are promising for their advantages in enhanced tumor accumulation and reduced toxicity towards normal organs. However, few nanomedicines have been successfully translated into clinical application. One reason is the gap between current pre-clinical and clinical studies. The prevalent in vitro models utilized in pre-clinical phase are mainly based on the two-dimensional (2D) cell culture and are limited by the difficulty of simulating three-dimensional physiological conditions in human body, such as three-dimensional (3D) architecture, cell heterogeneity, nutrient gradients and the interaction between cells and the extracellular matrix (ECM). In addition, traditional animal models have drawbacks such as high-cost, long periods and physiological differences between animal and human. On the other hand, the employment of 3D tumor cell culture models, especially multicellular tumor spheroids (MCTS), has increased significantly in recent decades. These models have been shown to simulate 3D structures of tumors in vitro with relatively low cost and simple protocols. Currently, MCTS have also been widely exploited in drug delivery system research for comprehensive study of drug efficacy, drug penetration, receptor targeting, and cell recruitment abilities. This review summarizes the delivery barriers for nano-carriers presented in tumor microenvironment, the characteristics and formation methods for applicable multicellular tumor spheroid culture models and recent studies related to their applications in tumor-targeted drug delivery system research.
Collapse
Affiliation(s)
- Bu-Wei Huang
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, PR China; Center for Nanomedicine at the Wilmer Eye Institute, Johns Hopkins University School of Medicine, MD 21231, USA; Department of Biomedical Engineering, Johns Hopkins University School of Medicine, MD 21205, USA
| | - Jian-Qing Gao
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, PR China.
| |
Collapse
|
14
|
Baek JS, Choo CC, Tan NS, Loo SCJ. Sustained-releasing hollow microparticles with dual-anticancer drugs elicit greater shrinkage of tumor spheroids. Oncotarget 2017; 8:80841-80852. [PMID: 29113348 PMCID: PMC5655243 DOI: 10.18632/oncotarget.20591] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Accepted: 08/04/2017] [Indexed: 12/17/2022] Open
Abstract
Polymeric particulate delivery systems are vastly explored for the delivery of chemotherapeutic agents. However, the preparation of polymeric particulate systems with the capability of providing sustained release of two or more drugs is still a challenge. Herein, poly (D, L-lactic-co-glycolic acid, 50:50) hollow microparticles co-loaded with doxorubicin and paclitaxel were developed through double-emulsion solvent evaporation technique. Hollow microparticles were formed through the addition of an osmolyte into the fabrication process. The benefits of hollow over solid microparticles were found to be higher encapsulation efficiency and a more rapid drug release rate. Further modification of the hollow microparticles was accomplished through the introduction of methyl-β-cyclodextrin. With this, a higher encapsulation efficiency of both drugs and an enhanced cumulative release were achieved. Spheroid study further demonstrated that the controlled release of the drugs from the methyl-β-cyclodextrin -loaded hollow microparticles exhibited enhanced tumor regressions of MCF-7 tumor spheroids. Such hollow dual-drug-loaded hollow microparticles with sustained releasing capabilities may have a potential for future applications in cancer therapy.
Collapse
Affiliation(s)
- Jong-Suep Baek
- School of Materials Science and Engineering, Nanyang Technological University, 639798, Singapore
| | - Chee Chong Choo
- School of Biological Sciences, Nanyang Technological University, 637551, Singapore
| | - Nguan Soon Tan
- School of Biological Sciences, Nanyang Technological University, 637551, Singapore.,Lee Kong Chian School of Medicine, Nanyang Technological University, 639798, Singapore.,Institute of Molecular Cell Biology, Proteos, Agency for Science Technology and Research, 138673, Singapore.,KK Research Centre, KK Women's and Children Hospital, 229899, Singapore
| | - Say Chye Joachim Loo
- School of Materials Science and Engineering, Nanyang Technological University, 639798, Singapore.,Singapore Centre on Environmental Life Sciences Engineering, Nanyang Technological University, 637551, Singapore
| |
Collapse
|
15
|
Peng W, Datta P, Ayan B, Ozbolat V, Sosnoski D, Ozbolat IT. 3D bioprinting for drug discovery and development in pharmaceutics. Acta Biomater 2017; 57:26-46. [PMID: 28501712 DOI: 10.1016/j.actbio.2017.05.025] [Citation(s) in RCA: 158] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2017] [Revised: 05/05/2017] [Accepted: 05/09/2017] [Indexed: 02/08/2023]
Abstract
Successful launch of a commercial drug requires significant investment of time and financial resources wherein late-stage failures become a reason for catastrophic failures in drug discovery. This calls for infusing constant innovations in technologies, which can give reliable prediction of efficacy, and more importantly, toxicology of the compound early in the drug discovery process before clinical trials. Though computational advances have resulted in more rationale in silico designing, in vitro experimental studies still require gaining industry confidence and improving in vitro-in vivo correlations. In this quest, due to their ability to mimic the spatial and chemical attributes of native tissues, three-dimensional (3D) tissue models have now proven to provide better results for drug screening compared to traditional two-dimensional (2D) models. However, in vitro fabrication of living tissues has remained a bottleneck in realizing the full potential of 3D models. Recent advances in bioprinting provide a valuable tool to fabricate biomimetic constructs, which can be applied in different stages of drug discovery research. This paper presents the first comprehensive review of bioprinting techniques applied for fabrication of 3D tissue models for pharmaceutical studies. A comparative evaluation of different bioprinting modalities is performed to assess the performance and ability of fabricating 3D tissue models for pharmaceutical use as the critical selection of bioprinting modalities indeed plays a crucial role in efficacy and toxicology testing of drugs and accelerates the drug development cycle. In addition, limitations with current tissue models are discussed thoroughly and future prospects of the role of bioprinting in pharmaceutics are provided to the reader. STATEMENT OF SIGNIFICANCE Present advances in tissue biofabrication have crucial role to play in aiding the pharmaceutical development process achieve its objectives. Advent of three-dimensional (3D) models, in particular, is viewed with immense interest by the community due to their ability to mimic in vivo hierarchical tissue architecture and heterogeneous composition. Successful realization of 3D models will not only provide greater in vitro-in vivo correlation compared to the two-dimensional (2D) models, but also eventually replace pre-clinical animal testing, which has their own shortcomings. Amongst all fabrication techniques, bioprinting- comprising all the different modalities (extrusion-, droplet- and laser-based bioprinting), is emerging as the most viable fabrication technique to create the biomimetic tissue constructs. Notwithstanding the interest in bioprinting by the pharmaceutical development researchers, it can be seen that there is a limited availability of comparative literature which can guide the proper selection of bioprinting processes and associated considerations, such as the bioink selection for a particular pharmaceutical study. Thus, this work emphasizes these aspects of bioprinting and presents them in perspective of differential requirements of different pharmaceutical studies like in vitro predictive toxicology, high-throughput screening, drug delivery and tissue-specific efficacies. Moreover, since bioprinting techniques are mostly applied in regenerative medicine and tissue engineering, a comparative analysis of similarities and differences are also expounded to help researchers make informed decisions based on contemporary literature.
Collapse
|
16
|
Huang G, Li M, Yang Q, Li Y, Liu H, Yang H, Xu F. Magnetically Actuated Droplet Manipulation and Its Potential Biomedical Applications. ACS APPLIED MATERIALS & INTERFACES 2017; 9:1155-1166. [PMID: 27991766 DOI: 10.1021/acsami.6b09017] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Droplet manipulation has found broad applications in various engineering and biomedical fields, such as biochemistry, microfluidic systems, drug delivery, and tissue engineering. Many methods have been developed to enhance the ability for manipulating droplets, among which magnetically actuated droplet manipulation has attracted widespread interests due to its remote, noninvasive manipulation ability and biocompatibility. This review summarizes the approaches and their principles that enable actuating the droplet magnetically. The potential biomedical applications of such a technique in bioassay, cell assembly, and tissue engineering are given.
Collapse
Affiliation(s)
| | | | | | | | | | - Hui Yang
- School of Life Sciences, Northwestern Polytechnical University , Xi'an 710072, People's Republic of China
| | | |
Collapse
|
17
|
Laschke MW, Menger MD. Life is 3D: Boosting Spheroid Function for Tissue Engineering. Trends Biotechnol 2016; 35:133-144. [PMID: 27634310 DOI: 10.1016/j.tibtech.2016.08.004] [Citation(s) in RCA: 256] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Revised: 08/03/2016] [Accepted: 08/05/2016] [Indexed: 12/11/2022]
Abstract
Spheroids provide a 3D environment with intensive cell-cell contacts. As a result of their excellent regenerative properties and rapid progress in their high-throughput production, spheroids are increasingly suggested as building blocks for tissue engineering. In this review, we focus on innovative biotechnological approaches that increase the quality of spheroids for this specific type of application. These include in particular the fabrication of coculture spheroids, mimicking the complex morphology and physiological tasks of natural tissues. In vitro preconditioning under different culture conditions and incorporation of biomaterials improve the function of spheroids and their directed fusion into macrotissues of desired shapes. The continuous development of these sophisticated approaches may markedly contribute to a broad implementation of spheroid-based tissue engineering in future regenerative medicine.
Collapse
Affiliation(s)
- Matthias W Laschke
- Institute for Clinical & Experimental Surgery, Saarland University, 66421 Homburg/Saar, Germany.
| | - Michael D Menger
- Institute for Clinical & Experimental Surgery, Saarland University, 66421 Homburg/Saar, Germany
| |
Collapse
|
18
|
Chatzinikolaidou M. Cell spheroids: the new frontiers in in vitro models for cancer drug validation. Drug Discov Today 2016; 21:1553-1560. [DOI: 10.1016/j.drudis.2016.06.024] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Revised: 06/17/2016] [Accepted: 06/22/2016] [Indexed: 02/07/2023]
|
19
|
Lee WL, Guo WM, Ho VHB, Saha A, Chong HC, Tan NS, Tan EY, Loo SCJ. Delivery of doxorubicin and paclitaxel from double-layered microparticles: The effects of layer thickness and dual-drug vs. single-drug loading. Acta Biomater 2015; 27:53-65. [PMID: 26340886 DOI: 10.1016/j.actbio.2015.08.051] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2015] [Revised: 08/14/2015] [Accepted: 08/31/2015] [Indexed: 12/23/2022]
Abstract
Double-layered microparticles composed of poly(d,l-lactic-co-glycolic acid, 50:50) (PLGA) and poly(l-lactic acid) (PLLA) were loaded with doxorubicin HCl (DOX) and paclitaxel (PCTX) through a solvent evaporation technique. DOX was localized in the PLGA shell, while PCTX was localized in the PLLA core. The aim of this study was to investigate how altering layer thickness of dual-drug, double-layered microparticles can influence drug release kinetics and their antitumor capabilities, and against single-drug microparticles. PCTX-loaded double-layered microparticles with denser shells retarded the initial release of PCTX, as compared with dual-drug-loaded microparticles. The DOX release from both DOX-loaded and dual-drug-loaded microparticles were observed to be similar with an initial burst. Through specific tailoring of layer thicknesses, a suppressed initial burst of DOX and a sustained co-delivery of two drugs can be achieved over 2months. Viability studies using spheroids of MCF-7 cells showed that controlled co-delivery of PCTX and DOX from dual-drug-loaded double-layered microparticles were better in reducing spheroid growth rate. This study provides mechanistic insights into how by tuning the layer thickness of double-layered microparticles the release kinetics of two drugs can be controlled, and how co-delivery can potentially achieve better anticancer effects. STATEMENT OF SIGNIFICANCE While the release of multiple drugs has been reported to achieve successful apoptosis and minimize drug resistance, most conventional particulate systems can only deliver a single drug at a time. Recently, although a number of formulations (e.g. micellar nanoparticles, liposomes) have been successful in delivering two or more anticancer agents, sustained co-delivery of these agents remains inadequate due to the complex agent loading processes and rapid release of hydrophilic agents. Therefore, the present work reports the multilayered particulate system that simultaneously hosts different drugs, while being able to tune their individual release over months. We believe that our findings would be of interest to the readers of Acta Biomaterialia because the proposed system could open a new avenue on how two drugs can be released, through rate-controlling carriers, for combination chemotherapy.
Collapse
Affiliation(s)
- Wei Li Lee
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Wei Mei Guo
- Molecular Engineering Laboratory, A(∗)STAR, Proteos #03-13, 61 Biopolis Drive, Singapore 138673, Singapore
| | - Vincent H B Ho
- Molecular Engineering Laboratory, A(∗)STAR, Proteos #03-13, 61 Biopolis Drive, Singapore 138673, Singapore
| | - Amitaksha Saha
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Han Chung Chong
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551, Singapore
| | - Nguan Soon Tan
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551, Singapore; Institute of Molecular and Cell Biology, A(∗)STAR, 61 Biopolis Drive, Proteos, Singapore 138673, Singapore
| | - Ern Yu Tan
- Department of General Surgery, Tan Tock Seng Hospital, 11 Jalan Tan Tock Seng, Singapore 308433, Singapore
| | - Say Chye Joachim Loo
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore; Singapore Centre on Environmental Life Sciences Engineering (SCELSE), Nanyang Technological University, Singapore 637551, Singapore.
| |
Collapse
|
20
|
Chen Y, Gao D, Liu H, Lin S, Jiang Y. Drug cytotoxicity and signaling pathway analysis with three-dimensional tumor spheroids in a microwell-based microfluidic chip for drug screening. Anal Chim Acta 2015; 898:85-92. [PMID: 26526913 DOI: 10.1016/j.aca.2015.10.006] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Revised: 10/04/2015] [Accepted: 10/06/2015] [Indexed: 12/28/2022]
Abstract
Currently, there has been a growing need for developing in vitro models to better reflect organism response to chemotherapy at tissue level. For this reason, a microfluidic platform was developed for mimicking physiological microenvironment of solid tumor with multicellular tumor spheroids (MTS) for anticancer drug screening. Importantly, the power of this system over traditional systems is that it is simple to operate and high integration in a more physiologically relevant context. As a proof of concept, long-term MTS cultures with uniform structure were realized on the microfluidic based platform. The response of doxorubicin and paclitaxel on different types of spheroids were simultaneously performed by in situ Live/Dead fluorescence stain to provide spatial distribution of dead cells as well as cytotoxicity information. In addition, the established platform combined with microplate reader was capable to determine the cytotoxicity of different sized MTS, showing a more powerful tool than cell staining examination at the end-point of assay. The HCT116 spheroids were then lysed on chip followed by signaling transduction pathway analysis. To our knowledge, the on chip drug screening study is the first to address the drug susceptibility testing and the offline detailed drug signaling pathway analysis combination on one system. Thus, this novel microfluidic platform provides a useful tool for drug screening with tumor spheroids, which is crucial for drug discovery and development.
Collapse
Affiliation(s)
- Yongli Chen
- School of Medicine, Tsinghua University, Beijing 100084, China; Key Lab of Chemical Genomics, School of Chemical Biology & Biotechnology, Graduate School at Shenzhen, Peking University, Shenzhen 518055, China
| | - Dan Gao
- State Key Laboratory Breeding Base-Shenzhen Key Laboratory of Chemical Biology, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China; Key Laboratory of Metabolomics at Shenzhen, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China
| | - Hongxia Liu
- State Key Laboratory Breeding Base-Shenzhen Key Laboratory of Chemical Biology, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China; Key Laboratory of Metabolomics at Shenzhen, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China.
| | - Shuo Lin
- Key Lab of Chemical Genomics, School of Chemical Biology & Biotechnology, Graduate School at Shenzhen, Peking University, Shenzhen 518055, China
| | - Yuyang Jiang
- School of Medicine, Tsinghua University, Beijing 100084, China; State Key Laboratory Breeding Base-Shenzhen Key Laboratory of Chemical Biology, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China.
| |
Collapse
|
21
|
Leong DT, Ng KW. Probing the relevance of 3D cancer models in nanomedicine research. Adv Drug Deliv Rev 2014; 79-80:95-106. [PMID: 24996135 DOI: 10.1016/j.addr.2014.06.007] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2014] [Revised: 06/17/2014] [Accepted: 06/24/2014] [Indexed: 12/12/2022]
Abstract
For decades, 2D cell culture format on plastic has been the main workhorse in cancer research. Though many important understandings of cancer cell biology were derived using this platform, it is not a fair representation of the in vivo scenario. In this review, both established and new 3D cell culture systems are discussed with specific references to anti-cancer drug and nanomedicine applications. 3D culture systems exploit more realistic spatial, biochemical and cellular heterogeneity parameters to bridge the experimental gap between in vivo and in vitro settings when studying the performance and efficacy of novel nanomedicine strategies to manage cancer. However, the complexities associated with 3D culture systems also necessitate greater technical expertise in handling and characterizing in order to arrive at meaningful experimental conclusions. Finally, we have also provided future perspectives where cutting edge 3D culture technologies may be combined with under-explored technologies to build better in vitro cancer platforms.
Collapse
|
22
|
Lee WL, Guo WM, Ho VHB, Saha A, Chong HC, Tan NS, Widjaja E, Tan EY, Loo SCJ. Inhibition of 3-D tumor spheroids by timed-released hydrophilic and hydrophobic drugs from multilayered polymeric microparticles. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2014; 10:3986-3996. [PMID: 24947558 DOI: 10.1002/smll.201400536] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Indexed: 06/03/2023]
Abstract
First-line cancer chemotherapy necessitates high parenteral dosage and repeated dosing of a combination of drugs over a prolonged period. Current commercially available chemotherapeutic agents, such as Doxil and Taxol, are only capable of delivering single drug in a bolus dose. The aim of this study is to develop dual-drug-loaded, multilayered microparticles and to investigate their antitumor efficacy compared with single-drug-loaded particles. Results show hydrophilic doxorubicin HCl (DOX) and hydrophobic paclitaxel (PTX) localized in the poly(dl-lactic-co-glycolic acid, 50:50) (PLGA) shell and in the poly(l-lactic acid) (PLLA) core, respectively. The introduction of poly[(1,6-bis-carboxyphenoxy) hexane] (PCPH) into PLGA/PLLA microparticles causes PTX to be localized in the PLLA and PCPH mid-layers, whereas DOX is found in both the PLGA shell and core. PLGA/PLLA/PCPH microparticles with denser shells allow better control of DOX release. A delayed release of PTX is observed with the addition of PCPH. Three-dimensional MCF-7 spheroid studies demonstrate that controlled co-delivery of DOX and PTX from multilayered microparticles produces a greater reduction in spheroid growth rate compared with single-drug-loaded particles. This study provides mechanistic insights into how distinctive structure of multilayered microparticles can be designed to modulate the release profiles of anticancer drugs, and how co-delivery can potentially provide better antitumor response.
Collapse
Affiliation(s)
- Wei Li Lee
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | | | | | | | | | | | | | | | | |
Collapse
|
23
|
Guo WM, Loh XJ, Tan EY, Loo JSC, Ho VHB. Development of a magnetic 3D spheroid platform with potential application for high-throughput drug screening. Mol Pharm 2014; 11:2182-9. [PMID: 24842574 DOI: 10.1021/mp5000604] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Three-dimensional (3D) cell culture has become increasingly adopted as a more accurate model of the complex in vivo microenvironment compared to conventional two-dimensional (2D) cell culture. Multicellular spheroids are important 3D cell culture models widely used in biological studies and drug screening. To facilitate simple spheroid manipulation, magnetic spheroids were generated from magnetically labeled cells using a scaffold-free approach. This method is applicable to a variety of cell types. The spheroids generated can be targeted and immobilized using magnetic field gradients, allowing media change or dilution to be performed with minimal disruption to the spheroids. Cells in magnetic spheroids showed good viability and displayed typical 3D morphology. Using this platform, a 28 day study was carried out using doxorubicin on magnetic MCF-7 spheroids. The results provided a proof-of-principle for using magnetic tumor spheroids in therapeutic studies. They can offer beneficial insights that help to bridge the gap between in vitro and in vivo models. Furthermore, this platform can be adapted for high-throughput screening in drug discovery.
Collapse
Affiliation(s)
- Wei Mei Guo
- Molecular Engineering Laboratory, A*STAR, Proteos , 61 Biopolis Drive, Singapore 138673, Singapore
| | | | | | | | | |
Collapse
|
24
|
Ranga A, Gjorevski N, Lutolf MP. Drug discovery through stem cell-based organoid models. Adv Drug Deliv Rev 2014; 69-70:19-28. [PMID: 24582599 DOI: 10.1016/j.addr.2014.02.006] [Citation(s) in RCA: 141] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2014] [Revised: 02/10/2014] [Accepted: 02/18/2014] [Indexed: 12/21/2022]
Abstract
The development of new drugs is currently a long and costly process in large part due to the failure of promising drug candidates identified in initial in vitro screens to perform as intended in vivo. New approaches to drug screening are being developed which focus on providing more biomimetic platforms. This review surveys this new generation of drug screening technologies, and provides an overview of recent developments in organoid culture systems which could afford previously unmatched fidelity for testing bioactivity and toxicity. The challenges inherent in such approaches will also be discussed, with a view towards bridging the gap between proof-of-concept studies and a wider implementation within the drug development community.
Collapse
|