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Mu HY, Lin CM, Chu LA, Lin YH, Li J, Liu CY, Huang HC, Cheng SL, Lee TY, Lee HM, Chen HM, Tsai YJ, Chen Y, Huang JH. Ex Vivo Evaluation of Combination Immunotherapy Using Tumor-Microenvironment-on-Chip. Adv Healthc Mater 2024; 13:e2302268. [PMID: 37748773 DOI: 10.1002/adhm.202302268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 09/03/2023] [Indexed: 09/27/2023]
Abstract
Combination immunotherapy has emerged as a promising strategy to address the challenges associated with immune checkpoint inhibitor (ICI) therapy in breast cancer. The efficacy of combination immunotherapy hinges upon the intricate and dynamic nature of the tumor microenvironment (TME), characterized by cellular heterogeneity and molecular gradients. However, current methodologies for drug screening often fail to accurately replicate these complex conditions, resulting in limited predictive capacity for treatment outcomes. Here, a tumor-microenvironment-on-chip (TMoC), integrating a circulation system and ex vivo tissue culture with physiological oxygen and nutrient gradients, is described. This platform enables spatial infiltration of cytotoxic CD8+ T cells and their targeted attack on the tumor, while preserving the high complexity and heterogeneity of the TME. The TMoC is employed to assess the synergistic effect of five targeted therapy drugs and five chemotherapy drugs in combination with immunotherapy, demonstrating strong concordance between chip and animal model responses. The TMoC holds significant potential for advancing drug development and guiding clinical decision-making, as it offers valuable insights into the complex dynamics of the TME.
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Affiliation(s)
- Hsuan-Yu Mu
- Department of Chemical Engineering, National Tsing Hua University, 101, Sec. 2, Kuang-Fu Rd., Hsinchu, 30013, Taiwan
- Institute of Biomedical Engineering, National Tsing Hua University, 101, Sec. 2, Kuang-Fu Rd., Hsinchu, 30013, Taiwan
| | - Chiao-Min Lin
- Department of Chemical Engineering, National Tsing Hua University, 101, Sec. 2, Kuang-Fu Rd., Hsinchu, 30013, Taiwan
| | - Li-An Chu
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, 101, Sec. 2, Kuang-Fu Rd., Hsinchu, 30013, Taiwan
- Brain Research Center, National Tsing Hua University, 101, Sec. 2, Kuang-Fu Rd., Hsinchu, 30013, Taiwan
| | - Ya-Hui Lin
- Department of Chemical Engineering, National Tsing Hua University, 101, Sec. 2, Kuang-Fu Rd., Hsinchu, 30013, Taiwan
| | - Ji Li
- Department of Chemical Engineering, National Tsing Hua University, 101, Sec. 2, Kuang-Fu Rd., Hsinchu, 30013, Taiwan
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, 101, Sec. 2, Kuang-Fu Rd., Hsinchu, 30013, Taiwan
| | - Chao-Yu Liu
- Department of Chemical Engineering, National Tsing Hua University, 101, Sec. 2, Kuang-Fu Rd., Hsinchu, 30013, Taiwan
| | - Hsi-Chien Huang
- Department of Chemical Engineering, National Tsing Hua University, 101, Sec. 2, Kuang-Fu Rd., Hsinchu, 30013, Taiwan
- Institute of Biomedical Engineering, National Tsing Hua University, 101, Sec. 2, Kuang-Fu Rd., Hsinchu, 30013, Taiwan
| | - Sheng-Liang Cheng
- Institute of Biomedical Engineering, National Tsing Hua University, 101, Sec. 2, Kuang-Fu Rd., Hsinchu, 30013, Taiwan
| | - Tsung-Ying Lee
- Institute of Biomedical Engineering, National Tsing Hua University, 101, Sec. 2, Kuang-Fu Rd., Hsinchu, 30013, Taiwan
| | - Hsin Mei Lee
- Institute of Biomedical Engineering, National Tsing Hua University, 101, Sec. 2, Kuang-Fu Rd., Hsinchu, 30013, Taiwan
| | - Hsin-Min Chen
- Institute of Biomedical Engineering, National Tsing Hua University, 101, Sec. 2, Kuang-Fu Rd., Hsinchu, 30013, Taiwan
| | - Yun-Jen Tsai
- Institute of Biomedical Engineering, National Tsing Hua University, 101, Sec. 2, Kuang-Fu Rd., Hsinchu, 30013, Taiwan
| | - Yunching Chen
- Institute of Biomedical Engineering, National Tsing Hua University, 101, Sec. 2, Kuang-Fu Rd., Hsinchu, 30013, Taiwan
| | - Jen-Huang Huang
- Department of Chemical Engineering, National Tsing Hua University, 101, Sec. 2, Kuang-Fu Rd., Hsinchu, 30013, Taiwan
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Jang Y, Kim H, Jung J, Oh J. Controlled Thin Polydimethylsiloxane Membrane with Small and Large Micropores for Enhanced Attachment and Detachment of the Cell Sheet. MEMBRANES 2022; 12:membranes12070688. [PMID: 35877891 PMCID: PMC9315480 DOI: 10.3390/membranes12070688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 06/30/2022] [Accepted: 06/30/2022] [Indexed: 02/01/2023]
Abstract
Polydimethylsiloxane (PDMS) membranes can allow the precise control of well-defined micropore generation. A PDMS solution was mixed with a Rushton impeller to generate a large number of microbubbles. The mixed solution was spin-coated on silicon wafer to control the membrane thickness. The microbubbles caused the generation of a large number of small and large micropores in the PDMS membranes with decreased membrane thickness. The morphology of the thinner porous PDMS membrane induced higher values of roughness, Young’s modulus, contact angle, and air permeability. At day 7, the viability of cells on the porous PDMS membranes fabricated at the spin-coating speed of 5000 rpm was the highest (more than 98%) due to their internal networking structure and surface properties. These characteristics closely correlated with the increased formation of actin stress fibers and migration of keratinocyte cells, resulting in enhanced physical connection of actin stress fibers of neighboring cells throughout the discontinuous adherent junctions. The intact detachment of a cell sheet attached to a porous PDMS membrane was demonstrated. Therefore, PDMS has a great potential for enhancing the formation of cell sheets in regenerative medicine.
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Affiliation(s)
- Yeongseok Jang
- Department of Mechanical Design Engineering, College of Engineering, Jeonbuk National University, Jeonju 54896, Korea;
| | - Hyojae Kim
- Center for Social Innovation Policy, Office of S&T Policy Planning, Korea Institute of S&T Evaluation and Planning, Eumseong 27740, Korea;
| | - Jinmu Jung
- Department of Nano-bio Mechanical System Engineering, College of Engineering, Jeonbuk National University, Jeonju 54896, Korea
- Correspondence: (J.J.); (J.O.); Tel.: +82-632704572 (J.J.); +82-632702451 (J.O.)
| | - Jonghyun Oh
- Department of Nano-bio Mechanical System Engineering, College of Engineering, Jeonbuk National University, Jeonju 54896, Korea
- Correspondence: (J.J.); (J.O.); Tel.: +82-632704572 (J.J.); +82-632702451 (J.O.)
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