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Lu L, Ma D, Xi Z. Coexpression of TP53, BIM, and PTEN Enhances the Therapeutic Efficacy of Non-Small-Cell Lung Cancer. Biomacromolecules 2024; 25:792-808. [PMID: 38237562 DOI: 10.1021/acs.biomac.3c00988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2024]
Abstract
For non-small-cell lung cancer (NSCLC), the ubiquitous occurrence of concurrent multiple genomic alterations poses challenges to single-gene therapy. To increase therapeutic efficacy, we used the branch-PCR method to develop a multigene nanovector, NP-TP53-BIM-PTEN, that carried three therapeutic gene expression cassettes for coexpression. NP-TP53-BIM-PTEN exhibited a uniform size of 104.8 ± 24.2 nm and high serum stability. In cell transfection tests, NP-TP53-BIM-PTEN could coexpress TP53, BIM, and PTEN in NCI-H1299 cells and induce cell apoptosis with a ratio of up to 94.9%. Furthermore, NP-TP53-BIM-PTEN also inhibited cell proliferation with a ratio of up to 42%. In a mouse model bearing an NCI-H1299 xenograft tumor, NP-TP53-BIM-PTEN exhibited a stronger inhibitory effect on the NCI-H1299 xenograft tumor than the other test vectors without any detectable side effects. These results exhibited the potential of NP-TP53-BIM-PTEN as an effective and safe multigene nanovector to enhance NSCLC therapy efficacy, which will provide a framework for genome therapy with multigene combinations.
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Affiliation(s)
- Liqing Lu
- State Key Laboratory of Elemento-Organic Chemistry and Department of Chemical Biology, National Engineering Research Center of Pesticide (Tianjin), College of Chemistry, Nankai University, Tianjin 300071, China
| | - Dejun Ma
- State Key Laboratory of Elemento-Organic Chemistry and Department of Chemical Biology, National Engineering Research Center of Pesticide (Tianjin), College of Chemistry, Nankai University, Tianjin 300071, China
| | - Zhen Xi
- State Key Laboratory of Elemento-Organic Chemistry and Department of Chemical Biology, National Engineering Research Center of Pesticide (Tianjin), College of Chemistry, Nankai University, Tianjin 300071, China
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2
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Zhao K, Fu W, Huang Z, Chen R, Lin W, Lin Z. Target recognition assisted-primer exchange reaction (Ta-PER) for sensitive analysis of p53 gene and its application in analyzing amatoxin-treated samples. Anal Bioanal Chem 2023; 415:405-410. [PMID: 36370202 DOI: 10.1007/s00216-022-04420-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 10/10/2022] [Accepted: 11/02/2022] [Indexed: 11/13/2022]
Abstract
Sensitive and reliable detection of the p53 gene plays a significant role in precise cancer targeting and in fundamental research. However, the sensitivity of existing p53 gene detection approaches remains to be improved. Herein, we develop a target recognition assisted-primer exchange reaction (Ta-PER) for sensitive analysis of the p53 gene. Ta-PER was initiated by the recognition of a designed dumbbell structure probe by the p53 gene. In Ta-PER, the primer exchange reaction (PER) was combined with molecular beacon-based chain recycling to construct the signal amplification process. Through integrating target recognition with PER-based signal amplification, Ta-PER was established and exhibited a high detection sensitivity, with a limit of detection as low as 56 fM. In addition, the approach was also used to detect the p53 gene in normal HeLa cells and amatoxin-treated HeLa cells. The high level of the p53 gene in amatoxin-treated HeLa cells, which was approximately 1.67 times higher than that in HeLa cell extract, indicated the apoptosis of cells and suggested the promising prospect of the approach.
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Affiliation(s)
- Kangtao Zhao
- Fujian Provincial Center for Disease Control and Prevention, Fujian Academy of Preventive Medicine, Fuzhou City, 350012, Fujian Province, China.
| | - Wusheng Fu
- Fujian Provincial Center for Disease Control and Prevention, Fujian Academy of Preventive Medicine, Fuzhou City, 350012, Fujian Province, China
| | - Zongxiu Huang
- Fujian Provincial Center for Disease Control and Prevention, Fujian Academy of Preventive Medicine, Fuzhou City, 350012, Fujian Province, China
| | - Run Chen
- Fujian Provincial Center for Disease Control and Prevention, Fujian Academy of Preventive Medicine, Fuzhou City, 350012, Fujian Province, China
| | - Wei Lin
- Fujian Provincial Center for Disease Control and Prevention, Fujian Academy of Preventive Medicine, Fuzhou City, 350012, Fujian Province, China
| | - Zhong Lin
- Fujian Provincial Center for Disease Control and Prevention, Fujian Academy of Preventive Medicine, Fuzhou City, 350012, Fujian Province, China
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Cheng L, Lu L, Chen Z, Ma D, Xi Z. Multiple-Gene Regulation for Enhanced Antitumor Efficacy with Branch-PCR-Assembled TP53 and MYC Gene Nanovector. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27206943. [PMID: 36296536 PMCID: PMC9609172 DOI: 10.3390/molecules27206943] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 10/13/2022] [Accepted: 10/14/2022] [Indexed: 11/06/2022]
Abstract
Multiple proteins are involved in network regulation through the crosstalk of different signaling pathways in cancers. Here, we propose a novel strategy of genome therapy with branch-PCR-assembled gene nanovectors to perform network-based gene regulation at multiple levels for cancer therapy. To validate network-based multiplex-gene regulation for genome therapy, we chose to simultaneously target one tumor suppressor gene (TP53) and one oncogene (MYC) in two different signaling pathways. The results showed that, compared to gene nanovectors targeting single genes (NP-TP53 and NP-shMYC), branch-PCR-assembled gene nanovectors simultaneously expressing p53 proteins and MYC shRNA arrays (NP-TP53-shMYC) showed enhanced antitumor efficacy in both MDA-MB-231 cancer cells and an MDA-MB-231-tumor-bearing mouse model. These findings indicate the feasibility and effectiveness of genome therapy in cancer therapy.
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Affiliation(s)
| | | | | | - Dejun Ma
- Correspondence: (D.M.); (Z.X.); Tel.: +86-022-23504782 (Z.X.)
| | - Zhen Xi
- Correspondence: (D.M.); (Z.X.); Tel.: +86-022-23504782 (Z.X.)
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4
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Lu L, Fang T, Pang T, Chen Z, Cheng L, Ma D, Xi Z. The potential application of branch-PCR assembled PTEN gene nanovector in lung cancer gene therapy. Chembiochem 2022; 23:e202200387. [PMID: 36073901 DOI: 10.1002/cbic.202200387] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Revised: 09/08/2022] [Indexed: 11/12/2022]
Abstract
Gene therapy offers an alternative and promising avenue to lung cancer treatment. Here, we used dibenzocyclooctyne (DBCO)-branched primers to construct a kind of PTEN gene nanovector (NP-PTEN) through branch-PCR. NP-PTEN showed the nanoscale structure with the biocompatible size (84.7 ± 11.2 nm) and retained the improved serum stability compared to linear DNA. When transfected into NCI-H1299 cancer cells, NP-PTEN could overexpress PTEN protein to restore PTEN function through the deactivation of PI3K-AKT-mTOR signaling pathway to inhibit cell proliferation and induce cell apoptosis. The apoptosis rate of NCI-H1299 cancer cells could reach up to 54.5% ± 4.6% when the transfection concentration of NP-PTEN was 4.0 μg/mL. In mice bearing NCI-H1299 tumor xenograft intratumorally administrated with NP-PTEN, the average tumor volume and tumor weight was separately reduced by 61.7% and 63.9% compared with the PBS group on the 18 th day of administration. The anticancer efficacy of NP-PTEN in NCI-H1299 tumor xenograft suggested the promising therapeutic potential of this branch-PCR assembled PTEN gene nanovectors in lung cancer gene therapy and also provided more opportunities to introduce two or more tumor suppressor genes as the all-in-one gene nanovectors for multiple gene-based cancer gene therapy.
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Affiliation(s)
- Liqing Lu
- Nankai University College of Chemistry, Department of Chemical Biology, CHINA
| | - Tian Fang
- Nankai University College of Chemistry, Department of Chemical Biology, CHINA
| | - Tuo Pang
- Nankai University College of Chemistry, Department of Chemical Biology, CHINA
| | - Ziyi Chen
- Nankai University College of Chemistry, Department of Chemical Biology, CHINA
| | - Longhuai Cheng
- Nankai University College of Chemistry, Department of Chemical Biology, CHINA
| | - Dejun Ma
- Nankai University College of Chemistry, Department of Chemical Biology, CHINA
| | - Zhen Xi
- Nankai University, State Key Laboratory of Elemento-Organic Chemistry and Department of Chemical Bi, 94 weijin road, 300071, Tianjin, CHINA
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5
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Li R, Wu X, Li J, Lu X, Zhao RC, Liu J, Ding B. A covalently conjugated branched DNA aptamer cluster-based nanoplatform for efficiently targeted drug delivery. NANOSCALE 2022; 14:9369-9378. [PMID: 35726974 DOI: 10.1039/d2nr01252a] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Targeted delivery of therapeutic drugs is essential for precise treatment of various diseases to reduce possible serious side-effects. A screened DNA aptamer has been widely developed for active targeting delivery. Herein, we report a facile strategy for the construction of a branched DNA aptamer cluster-based nanoplatform for efficiently targeted drug delivery. In our design, the terminal-modified DNA aptamer can be covalently conjugated to form a branched aptamer cluster by click reaction easily. The branched aptamer cluster-modified DNA tetrahedron (TET) demonstrates highly targeted cellular uptake with the modification of only one site. After loading the chemotherapeutic drug (doxorubicin, DOX), the DNA aptamer cluster-based nanoplatform elicits a remarkable and selective inhibition of tumor cell proliferation by much-enhanced targeted delivery. This covalently conjugated branched DNA aptamer cluster-based nanoplatform provides a new strategy for the development of targeted drug delivery.
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Affiliation(s)
- Runze Li
- Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Dongdan Santiao No. 5, Beijing 100005, China.
| | - Xiaohui Wu
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for NanoScience and Technology, 11 BeiYiTiao, ZhongGuanCun, Beijing 100190, China.
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jing Li
- Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Dongdan Santiao No. 5, Beijing 100005, China.
| | - Xuehe Lu
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for NanoScience and Technology, 11 BeiYiTiao, ZhongGuanCun, Beijing 100190, China.
| | - Robert Chunhua Zhao
- Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Dongdan Santiao No. 5, Beijing 100005, China.
- School of Life Sciences, Shanghai University, Shanghai 200444, China
| | - Jianbing Liu
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for NanoScience and Technology, 11 BeiYiTiao, ZhongGuanCun, Beijing 100190, China.
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Baoquan Ding
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for NanoScience and Technology, 11 BeiYiTiao, ZhongGuanCun, Beijing 100190, China.
- University of Chinese Academy of Sciences, Beijing 100049, China
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Lu L, Rao D, Niu C, Cheng L, Ma D, Xi Z. Dibenzocyclooctyne-Branched Primer Assembled Gene Nanovector and Its Potential Applications in Genome Editing. Chembiochem 2022; 23:e202100544. [PMID: 35146856 DOI: 10.1002/cbic.202100544] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 02/08/2022] [Indexed: 11/10/2022]
Abstract
The CRISPR/Cas9 system has been widely used as an efficient genome editing toolkit for gene therapy. The delivery of vectors encoding the full CRISPR/Cas9 components including Cas9 gene and gRNA expression element into cells is the crucial step to effective genome editing. However, the cargo gene sequence for genome editing is usually large, which reduces the cargo encapsulation efficiency and affects the vector size. To obtain a nanovector with high cargo gene loading capacity and biocompatible size, we report the construction of a gene nanovector from branch-PCR with a dibenzocyclooctyne (DBCO)-branched primer and establish the correlation mapping between gene length and nanovector size. The results show that the size of nanovectors can be tuned according to the gene length. According to the findings, we constructed nanovectors carrying the full CRISPR/Cas9 components in 100-200 nm and validated their application in genome editing. The results show that this kind of nanovector exhibits higher serum stability than plasmids and can reach comparable genome editing efficiency with plasmids. Hence, this type of gene nanovector obtained through branch-PCR can carry large gene cargos and maintain a biocompatible nanoscale size, which we envisage will expand its medical applications in gene therapy.
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Affiliation(s)
- Liqing Lu
- Department of Chemical Biology, State Key Laboratory of Elemento-Organic Chemistry, National Engineering Research Center of Pesticide (Tianjin), Nankai University, 300071, Tianjin, China
| | - Dunkang Rao
- Department of Chemical Biology, State Key Laboratory of Elemento-Organic Chemistry, National Engineering Research Center of Pesticide (Tianjin), Nankai University, 300071, Tianjin, China
| | - Cuili Niu
- Department of Chemical Biology, State Key Laboratory of Elemento-Organic Chemistry, National Engineering Research Center of Pesticide (Tianjin), Nankai University, 300071, Tianjin, China
| | - Longhuai Cheng
- Department of Chemical Biology, State Key Laboratory of Elemento-Organic Chemistry, National Engineering Research Center of Pesticide (Tianjin), Nankai University, 300071, Tianjin, China
| | - Dejun Ma
- Department of Chemical Biology, State Key Laboratory of Elemento-Organic Chemistry, National Engineering Research Center of Pesticide (Tianjin), Nankai University, 300071, Tianjin, China
| | - Zhen Xi
- Department of Chemical Biology, State Key Laboratory of Elemento-Organic Chemistry, National Engineering Research Center of Pesticide (Tianjin), Nankai University, 300071, Tianjin, China
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Wang Y, Lu X, Wu X, Li Y, Tang W, Yang C, Liu J, Ding B. Chemically Modified DNA Nanostructures for Drug Delivery. Innovation (N Y) 2022; 3:100217. [PMID: 35243471 PMCID: PMC8881720 DOI: 10.1016/j.xinn.2022.100217] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Based on predictable, complementary base pairing, DNA can be artificially pre-designed into versatile DNA nanostructures of well-defined shapes and sizes. With excellent addressability and biocompatibility, DNA nanostructures have been widely employed in biomedical research, such as bio-sensing, bio-imaging, and drug delivery. With the development of the chemical biology of nucleic acid, chemically modified nucleic acids are also gradually developed to construct multifunctional DNA nanostructures. In this review, we summarize the recent progress in the construction and functionalization of chemically modified DNA nanostructures. Their applications in the delivery of chemotherapeutic drugs and nucleic acid drugs are highlighted. Furthermore, the remaining challenges and future prospects in drug delivery by chemically modified DNA nanostructures are discussed. With excellent addressability and biocompatibility, DNA nanostructures are promising candidates for bio-sensing, bio-imaging, and drug delivery The recent progress in chemical modifications of DNA nanostructures is summarized Chemically modified DNA nanostructures for efficient delivery of chemotherapeutic drugs and nucleic acid drugs are highlighted Challenges and prospects of future development toward chemically modified DNA nanostructures for drug delivery are discussed
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8
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Liu J, Lu X, Wu T, Wu X, Han L, Ding B. Branched Antisense and siRNA Co-Assembled Nanoplatform for Combined Gene Silencing and Tumor Therapy. Angew Chem Int Ed Engl 2020; 60:1853-1860. [PMID: 33058467 DOI: 10.1002/anie.202011174] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Revised: 10/01/2020] [Indexed: 12/14/2022]
Abstract
Chemically modified DNA has been widely developed to fabricate various nucleic acid nanostructures for biomedical applications. Herein, we report a facile strategy for construction of branched antisense DNA and small interfering RNA (siRNA) co-assembled nanoplatform for combined gene silencing in vitro and in vivo. In our design, the branched antisense can efficiently capture siRNA with 3' overhangs through DNA-RNA hybridization. After being equipped with an active targeting group and an endosomal escape peptide by host-guest interaction, the tailored nucleic acid nanostructure functions efficiently as both delivery carrier and therapeutic cargo, which is released by endogenous RNase H digestion. The multifunctional nucleic acid nanosystem elicits an efficient inhibition of tumor growth based on the combined gene silencing of the tumor-associated gene polo-like kinase 1 (PLK1). This biocompatible nucleic acid nanoplatform presents a new strategy for the development of gene therapy.
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Affiliation(s)
- Jianbing Liu
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, 11 BeiYiTiao, ZhongGuanCun, Beijing, 100190, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xuehe Lu
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, 11 BeiYiTiao, ZhongGuanCun, Beijing, 100190, China.,School of Materials Science and Engineering, Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou, 450001, China
| | - Tiantian Wu
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, 11 BeiYiTiao, ZhongGuanCun, Beijing, 100190, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiaohui Wu
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, 11 BeiYiTiao, ZhongGuanCun, Beijing, 100190, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Lin Han
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, 11 BeiYiTiao, ZhongGuanCun, Beijing, 100190, China.,School of Materials Science and Engineering, Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou, 450001, China
| | - Baoquan Ding
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, 11 BeiYiTiao, ZhongGuanCun, Beijing, 100190, China.,University of Chinese Academy of Sciences, Beijing, 100049, China.,School of Materials Science and Engineering, Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou, 450001, China
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Liu J, Lu X, Wu T, Wu X, Han L, Ding B. Branched Antisense and siRNA Co‐Assembled Nanoplatform for Combined Gene Silencing and Tumor Therapy. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202011174] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Jianbing Liu
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology 11 BeiYiTiao, ZhongGuanCun Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Xuehe Lu
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology 11 BeiYiTiao, ZhongGuanCun Beijing 100190 China
- School of Materials Science and Engineering Henan Institute of Advanced Technology Zhengzhou University Zhengzhou 450001 China
| | - Tiantian Wu
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology 11 BeiYiTiao, ZhongGuanCun Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Xiaohui Wu
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology 11 BeiYiTiao, ZhongGuanCun Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Lin Han
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology 11 BeiYiTiao, ZhongGuanCun Beijing 100190 China
- School of Materials Science and Engineering Henan Institute of Advanced Technology Zhengzhou University Zhengzhou 450001 China
| | - Baoquan Ding
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology 11 BeiYiTiao, ZhongGuanCun Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
- School of Materials Science and Engineering Henan Institute of Advanced Technology Zhengzhou University Zhengzhou 450001 China
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10
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Cheng L, Ma D, Lu L, Ouyang D, Xi Z. Building Customizable Multisite‐Targeting c‐Myc shRNA Array into Branch‐PCR‐Constructed DNA Nanovectors for Enhanced Tumor Cell Suppression. ChemistrySelect 2020. [DOI: 10.1002/slct.202002609] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Longhuai Cheng
- Department of Chemical Biology State Key Laboratory of Elemento-Organic Chemistry National Engineering Research Center of Pesticide (Tianjin) College of Chemistry Nankai University Weijin Road 94 Tianjin 300071 P. R. China
| | - Dejun Ma
- Department of Chemical Biology State Key Laboratory of Elemento-Organic Chemistry National Engineering Research Center of Pesticide (Tianjin) College of Chemistry Nankai University Weijin Road 94 Tianjin 300071 P. R. China
| | - Liqing Lu
- Department of Chemical Biology State Key Laboratory of Elemento-Organic Chemistry National Engineering Research Center of Pesticide (Tianjin) College of Chemistry Nankai University Weijin Road 94 Tianjin 300071 P. R. China
| | - Di Ouyang
- Department of Chemical Biology State Key Laboratory of Elemento-Organic Chemistry National Engineering Research Center of Pesticide (Tianjin) College of Chemistry Nankai University Weijin Road 94 Tianjin 300071 P. R. China
| | - Zhen Xi
- Department of Chemical Biology State Key Laboratory of Elemento-Organic Chemistry National Engineering Research Center of Pesticide (Tianjin) College of Chemistry Nankai University Weijin Road 94 Tianjin 300071 P. R. China
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Dong Y, Yao C, Zhu Y, Yang L, Luo D, Yang D. DNA Functional Materials Assembled from Branched DNA: Design, Synthesis, and Applications. Chem Rev 2020; 120:9420-9481. [DOI: 10.1021/acs.chemrev.0c00294] [Citation(s) in RCA: 168] [Impact Index Per Article: 42.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Yuhang Dong
- Frontiers Science Center for Synthetic Biology, Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P. R. China
| | - Chi Yao
- Frontiers Science Center for Synthetic Biology, Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P. R. China
| | - Yi Zhu
- Frontiers Science Center for Synthetic Biology, Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P. R. China
| | - Lu Yang
- Frontiers Science Center for Synthetic Biology, Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P. R. China
| | - Dan Luo
- Department of Biological & Environmental Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Dayong Yang
- Frontiers Science Center for Synthetic Biology, Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P. R. China
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12
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Functional efficiency of PCR vectors in vitro and at the organism level. PLoS One 2020; 15:e0232045. [PMID: 32330156 PMCID: PMC7182179 DOI: 10.1371/journal.pone.0232045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 04/05/2020] [Indexed: 12/18/2022] Open
Abstract
The functional efficiency of the expression cassettes integrated into a plasmid and a PCR- amplified fragment was comparatively analyzed after transient transfection in vitro or introduction into the developing embryo of Danio rerio. The cassettes contained the reporter genes, luciferase of Photinus pyralis (luc) or enhanced green fluorescent protein, under the control of the promoter of human cytomegalovirus immediate-early genes. In the in vitro system, the efficiency of the circular plasmid was 2.5 times higher than that of the PCR- amplified fragment. The effect of mutations in the expression cassette on the efficiency of the transgene expression in the PCR- amplified fragment was quantitatively evaluated. The mutations generated after 25 amplification cycles with Taq DNA polymerase decreased luciferase activity in transfected cells by 65–85%. Thus, mutations are the key factor of decreased functional efficiency of the PCR- amplified fragment relative to the circular plasmid in this experimental model, while other factors apparently have a lesser impact. At the organism level, no significant difference in the expression efficiency of the plasmid and PCR- amplified fragment has been revealed. Comparison of the vector efficiencies in in vivo and in vitro systems demonstrates that the level of luciferase in the D. rerio cell lysate, normalized to the molar concentration of the vector, is by three orders of magnitude higher than that after the cell transfection in vitro, which indicates that the quantitative data obtained for in vitro systems should not be directly extrapolated to the organism level.
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