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Peng W, Gao M, Zhu X, Liu X, Yang G, Li S, Liu Y, Bai L, Yang J, Bao J. Visual screening of CRISPR/Cas9 editing efficiency based on micropattern arrays for editing porcine cells. Biotechnol J 2024; 19:e2300691. [PMID: 38622798 DOI: 10.1002/biot.202300691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 03/13/2024] [Accepted: 03/19/2024] [Indexed: 04/17/2024]
Abstract
CRISPR/Cas9 technology, combined with somatic cell nuclear transplantation (SCNT), represents the primary approach to generating gene-edited pigs. The inefficiency in acquiring gene-edited nuclear donors is attributed to low editing and delivery efficiency, both closely linked to the selection of CRISPR/Cas9 forms. However, there is currently no direct method to evaluate the efficiency of CRISPR/Cas9 editing in porcine genomes. A platform based on fluorescence reporting signals and micropattern arrays was developed in this study, to visually assess the efficiency of gene editing. The optimal specifications for culturing porcine cells, determined by the quantity and state of cells grown on micropattern arrays, were a diameter of 200 µm and a spacing of 150 µm. By visualizing the area of fluorescence loss and measuring the gray value of the micropattern arrays, it was quickly determined that the mRNA form targeting porcine cells exhibited the highest editing efficiency compared to DNA and Ribonucleoprotein (RNP) forms of CRISPR/Cas9. Subsequently, four homozygotes of the β4GalNT2 gene knockout were successfully obtained through the mRNA form, laying the groundwork for the subsequent generation of gene-edited pigs. This platform facilitates a quick, simple, and effective evaluation of gene knockout efficiency. Additionally, it holds significant potential for swiftly testing novel gene editing tools, assessing delivery methods, and tailoring evaluation platforms for various cell types.
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Affiliation(s)
- Wanliu Peng
- Department of Pathology, Institute of Clinical Pathology, Key Laboratory of Transplant Engineering and Immunology, NHC, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Mengyu Gao
- Department of Pathology, Institute of Clinical Pathology, Key Laboratory of Transplant Engineering and Immunology, NHC, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Xinglong Zhu
- Department of Pathology, Institute of Clinical Pathology, Key Laboratory of Transplant Engineering and Immunology, NHC, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Xinmei Liu
- Department of Pathology, Institute of Clinical Pathology, Key Laboratory of Transplant Engineering and Immunology, NHC, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Guang Yang
- Experimental Animal Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Shun Li
- Department of Biophysics, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Yong Liu
- Department of Plastic and Burn Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Lang Bai
- Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Jiayin Yang
- Transplant Center, Key Laboratory of Transplant Engineering and Immunology, NHC, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Ji Bao
- Department of Pathology, Institute of Clinical Pathology, Key Laboratory of Transplant Engineering and Immunology, NHC, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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Gao M, Zhu X, Peng W, He Y, Li Y, Wu Q, Zhou Y, Liao G, Yang G, Bao J, Bu H. Kidney ECM Pregel Nanoarchitectonics for Microarrays to Accelerate Harvesting Gene-Edited Porcine Primary Monoclonal Spheres. ACS OMEGA 2022; 7:23156-23169. [PMID: 35847249 PMCID: PMC9280780 DOI: 10.1021/acsomega.2c01074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
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One of the key steps
of using CRISPR/Cas9 to obtain gene-edited
cells used in generating gene-edited animals combined with somatic
cell nuclear transplantation (SCNT) is to harvest monoclonal cells
with genetic modifications. However, primary cells used as nuclear
donors always grow slowly and fragile after a series of gene-editing
operations. The extracellular matrix (ECM) formulated directly from
different organs comprises complex proteins and growth factors that
can improve and regulate the cellular functions of primary cells.
Herein, sodium lauryl ether sulfate (SLES) detergent was first used
to perfuse porcine kidney ECM, and the biological properties of the
kidney ECM were optimized. Then, we used a porcine kidney ECM pregel
to pattern the microarray and developed a novel strategy to shorten
the time of obtaining gene-edited monoclonal cell spheroids with low
damage in batches. Our results showed that the SLES-perfused porcine
kidney ECM pregel displayed superior biological activities in releasing
growth factors and promoting cell proliferation. Finally, combined
with microarray technology, we quickly obtained monoclonal cells in
good condition, and the cells used as nuclear donors to construct
recombinant embryos showed a significantly higher success rate than
those of the traditional method. We further successfully produced
genetically edited pigs.
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Affiliation(s)
- Mengyu Gao
- Department of Pathology, West China Hospital, Sichuan University, Chengdu 610041, China
- Institute of Clinical Pathology, Key Laboratory of Transplant Engineering and Immunology, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Wuhou District, Chengdu 610041, China
| | - Xinglong Zhu
- Institute of Clinical Pathology, Key Laboratory of Transplant Engineering and Immunology, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Wuhou District, Chengdu 610041, China
| | - Wanliu Peng
- Institute of Clinical Pathology, Key Laboratory of Transplant Engineering and Immunology, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Wuhou District, Chengdu 610041, China
| | - Yuting He
- Institute of Clinical Pathology, Key Laboratory of Transplant Engineering and Immunology, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Wuhou District, Chengdu 610041, China
| | - Yi Li
- Precision Medicine Key Laboratory, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Qiong Wu
- Institute of Clinical Pathology, Key Laboratory of Transplant Engineering and Immunology, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Wuhou District, Chengdu 610041, China
| | - Yanyan Zhou
- Institute of Clinical Pathology, Key Laboratory of Transplant Engineering and Immunology, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Wuhou District, Chengdu 610041, China
| | - Guangneng Liao
- Experimental Animal Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Guang Yang
- Experimental Animal Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Ji Bao
- Institute of Clinical Pathology, Key Laboratory of Transplant Engineering and Immunology, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Wuhou District, Chengdu 610041, China
| | - Hong Bu
- Department of Pathology, West China Hospital, Sichuan University, Chengdu 610041, China
- Institute of Clinical Pathology, Key Laboratory of Transplant Engineering and Immunology, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Wuhou District, Chengdu 610041, China
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Zhu X, Li Y, Yang Y, He Y, Gao M, Peng W, Wu Q, Zhang G, Zhou Y, Chen F, Bao J, Li W. Ordered micropattern arrays fabricated by lung-derived dECM hydrogels for chemotherapeutic drug screening. Mater Today Bio 2022; 15:100274. [PMID: 35601895 DOI: 10.1016/j.mtphys.2020.100274] [Citation(s) in RCA: 41] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 04/25/2022] [Accepted: 04/26/2022] [Indexed: 05/28/2023] Open
Abstract
AIMS This study aims to evaluate ECM-coated micropattern arrays derived from decellularization of native porcine lungs as a novel three-dimensional cell culture platform. METHODS ECM derived from decellularization of native porcine lungs was exploited to prepare hydrogels. Then, dECM-coated micropattern arrays were fabricated at four different diameters (50, 100, 150 and 200 μm) using polydimethylsiloxane (PDMS). Two lung cancer cell lines, A549 and H1299, were tested on a dECM-coated micropattern array as a novel culture platform for cell adhesion, distribution, proliferation, viability, phenotype expression, and drug screening to evaluate the cytotoxicity of paclitaxel, doxorubicin and cisplatin. RESULTS The ECM derived from decellularization of native porcine lungs supported cell adhesion, distribution, viability and proliferation better than collagen I and Matrigel as the coated matrix on the surface. Moreover, the optimal diameter of the micropattern arrays was 100-150 μm, as determined by measuring the morphology, viability, proliferation and phenotype of the cancer cell spheroids. Cell spheroids of A549 and H1299 on dECM-coated micropattern arrays showed chemoresistance to anticancer drugs compared to that of the monolayer. The different distributions of HIF-1α, MCL-1 (in the center) and Ki-67 and MRP2 (in the periphery) of the spheroids demonstrated the good establishment of basal-lateral polarity and explained the chemoresistance phenomenon of spheroids. CONCLUSIONS This novel three-dimensional cell culture platform is stable and reliable for anticancer drug testing. Drug screening in dECM-coated micropattern arrays provides a powerful alternative to existing methods for drug testing and metabolic profiling in the drug discovery process.
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Affiliation(s)
- Xinglong Zhu
- Institute of Clinical Pathology, Key Laboratory of Transplant Engineering and Immunology, NHC, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Yi Li
- Institute of Respiratory Health, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
- Precision Medicine Key Laboratory, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Ying Yang
- Institute of Respiratory Health, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
- Precision Medicine Key Laboratory, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Yuting He
- Institute of Clinical Pathology, Key Laboratory of Transplant Engineering and Immunology, NHC, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Mengyu Gao
- Institute of Clinical Pathology, Key Laboratory of Transplant Engineering and Immunology, NHC, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Wanliu Peng
- Institute of Clinical Pathology, Key Laboratory of Transplant Engineering and Immunology, NHC, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Qiong Wu
- Institute of Clinical Pathology, Key Laboratory of Transplant Engineering and Immunology, NHC, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Guangyue Zhang
- West China School of Medicine, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Yanyan Zhou
- Institute of Clinical Pathology, Key Laboratory of Transplant Engineering and Immunology, NHC, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Fei Chen
- Institute of Clinical Pathology, Key Laboratory of Transplant Engineering and Immunology, NHC, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Ji Bao
- Institute of Clinical Pathology, Key Laboratory of Transplant Engineering and Immunology, NHC, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Weimin Li
- Institute of Respiratory Health, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
- Precision Medicine Key Laboratory, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
- Department of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, 610041, China
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Zhu X, Li Y, Yang Y, He Y, Gao M, Peng W, Wu Q, Zhang G, Zhou Y, Chen F, Bao J, Li W. Ordered micropattern arrays fabricated by lung-derived dECM hydrogels for chemotherapeutic drug screening. Mater Today Bio 2022; 15:100274. [PMID: 35601895 PMCID: PMC9114688 DOI: 10.1016/j.mtbio.2022.100274] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 04/25/2022] [Accepted: 04/26/2022] [Indexed: 12/24/2022]
Abstract
Aims This study aims to evaluate ECM-coated micropattern arrays derived from decellularization of native porcine lungs as a novel three-dimensional cell culture platform. Methods ECM derived from decellularization of native porcine lungs was exploited to prepare hydrogels. Then, dECM-coated micropattern arrays were fabricated at four different diameters (50, 100, 150 and 200 μm) using polydimethylsiloxane (PDMS). Two lung cancer cell lines, A549 and H1299, were tested on a dECM-coated micropattern array as a novel culture platform for cell adhesion, distribution, proliferation, viability, phenotype expression, and drug screening to evaluate the cytotoxicity of paclitaxel, doxorubicin and cisplatin. Results The ECM derived from decellularization of native porcine lungs supported cell adhesion, distribution, viability and proliferation better than collagen I and Matrigel as the coated matrix on the surface. Moreover, the optimal diameter of the micropattern arrays was 100–150 μm, as determined by measuring the morphology, viability, proliferation and phenotype of the cancer cell spheroids. Cell spheroids of A549 and H1299 on dECM-coated micropattern arrays showed chemoresistance to anticancer drugs compared to that of the monolayer. The different distributions of HIF-1α, MCL-1 (in the center) and Ki-67 and MRP2 (in the periphery) of the spheroids demonstrated the good establishment of basal-lateral polarity and explained the chemoresistance phenomenon of spheroids. Conclusions This novel three-dimensional cell culture platform is stable and reliable for anticancer drug testing. Drug screening in dECM-coated micropattern arrays provides a powerful alternative to existing methods for drug testing and metabolic profiling in the drug discovery process. Lung dECM hydrogels can be used as a beneficial coating matrix for supporting cell adhesion, viability and proliferation. Ordered micropattern arrays provide a novel platform for spheroid formation, phenotype expression and drug screening. The heterogeneous distributions of the cancer spheroids established basal-lateral polarity and explained the chemoresistance.
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Zhu X, Wu Q, He Y, Gao M, Li Y, Peng W, Li S, Liu Y, Zhang R, Bao J. Fabrication of Size-Controllable and Arrangement-Orderly HepG2 Spheroids for Drug Screening via Decellularized Liver Matrix-Derived Micropattern Array Chips. ACS OMEGA 2022; 7:2364-2376. [PMID: 35071924 PMCID: PMC8772313 DOI: 10.1021/acsomega.1c06302] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 12/20/2021] [Indexed: 02/08/2023]
Abstract
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Three-dimensional
(3D) culture via micropattern arrays to generate
cellular spheroids seems a promising in vitro biomimetic
system for liver tissue engineering applications, such as drug screening.
Recently, organ-derived decellularized extracellular matrix emerges
as arguably the most biomimetic bioink. Herein, decellularized liver
matrix (DLM)-derived micropattern array chips were developed to fabricate
size-controllable and arrangement-orderly HepG2 spheroids for drug
screening. The porcine DLM was obtained by the removal of cellular
components and then ground into powder, followed by enzymolysis. DLM
as a coating substrate was compared with collagen type I (Col I) and
Matrigel in terms of biological performance for enhancing cell adhesion,
proliferation, and functions. Subsequently, we used poly(dimethylsiloxane)
(PDMS) to adsorb DLM as the bioink to fabricate micropattern array
chips. The optimal shape and size of micropattern were determined
by evaluating the morphology, viability, and functions of HepG2 3D
cellular aggregates. In addition, drug-susceptibility testing (paclitaxel,
doxorubicin HCl, and disulfiram) was performed on this novel platform.
The DLM provided the tissue-specific microenvironment that provided
suitable supports for HepG2 cells, compared to Col I and Matrigel.
A circular micropattern with a diameter of 100 μm was the optimal
processing parameter to rapidly fabricate large-scale, size-controllable,
and arrangement-orderly HepG2 cellular aggregates with 3D spheroid’s
shape and high cell viability. Drug screening testing showed that
the effect of a drug could be directly demonstrated on-chip by confocal
microscopy measuring the viability of spheroids. We provide a novel
platform for the large-scale generation of HepG2 spheroids with uniform
size and arrangement, thus bringing convenience, reducing error, and
increasing reproducibility for a rapid drug discovery by fluorescence
quantitative analysis. This methodology may be possible to apply in
advancing personalized medicine and drug discovery.
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Affiliation(s)
- Xinglong Zhu
- Institute of Clinical Pathology, Key Laboratory of Transplant Engineering and Immunology, NHC, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Qiong Wu
- Institute of Clinical Pathology, Key Laboratory of Transplant Engineering and Immunology, NHC, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China.,Laboratory of Liver Transplantation, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Yuting He
- Institute of Clinical Pathology, Key Laboratory of Transplant Engineering and Immunology, NHC, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Mengyu Gao
- Institute of Clinical Pathology, Key Laboratory of Transplant Engineering and Immunology, NHC, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China.,Department of Pathology, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Yi Li
- Institute of Clinical Pathology, Key Laboratory of Transplant Engineering and Immunology, NHC, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China.,Precision Medicine Key Laboratory, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Wanliu Peng
- Institute of Clinical Pathology, Key Laboratory of Transplant Engineering and Immunology, NHC, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Shengfu Li
- Key Laboratory of Transplant Engineering and Immunology, NHC, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Yong Liu
- Department of Burn and Plastic Surgery, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Rundong Zhang
- West China School of Medicine, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Ji Bao
- Institute of Clinical Pathology, Key Laboratory of Transplant Engineering and Immunology, NHC, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
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