1
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Zeng J, Liang X, Duan L, Tan F, Chen L, Qu J, Li J, Li K, Luo D, Hu Z. Targeted disruption of the BCR-ABL fusion gene by Cas9/dual-sgRNA inhibits proliferation and induces apoptosis in chronic myeloid leukemia cells. Acta Biochim Biophys Sin (Shanghai) 2024; 56:525-537. [PMID: 38414349 DOI: 10.3724/abbs.2023280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/29/2024] Open
Abstract
The BCR-ABL fusion gene, formed by the fusion of the breakpoint cluster region protein ( BCR) and the Abl Oncogene 1, Receptor Tyrosine Kinase ( ABL) genes, encodes the BCR-ABL oncoprotein, which plays a crucial role in leukemogenesis. Current therapies have limited efficacy in patients with chronic myeloid leukemia (CML) because of drug resistance or disease relapse. Identification of novel strategies to treat CML is essential. This study aims to explore the efficiency of novel CRISPR-associated protein 9 (Cas9)/dual-single guide RNA (sgRNA)-mediated disruption of the BCR-ABL fusion gene by targeting BCR and cABL introns. A co-expression vector for Cas9 green fluorescent protein (GFP)/dual-BA-sgRNA targeting BCR and cABL introns is constructed to produce lentivirus to affect BCR-ABL expression in CML cells. The effects of dual-sgRNA virus-mediated disruption of BCR-ABL are analyzed via the use of a genomic sequence and at the protein expression level. Cell proliferation, cell clonogenic ability, and cell apoptosis are assessed after dual sgRNA virus infection, and phosphorylated BCR-ABL and its downstream signaling molecules are detected. These effects are further confirmed in a CML mouse model via tail vein injection of Cas9-GFP/dual-BA-sgRNA virus-infected cells and in primary cells isolated from patients with CML. Cas9-GFP/dual-BA-sgRNA efficiently disrupts BCR-ABL at the genomic sequence and gene expression levels in leukemia cells, leading to blockade of the BCR-ABL tyrosine kinase signaling pathway and disruption of its downstream molecules, followed by cell proliferation inhibition and cell apoptosis induction. This method prolongs the lifespan of CML model mice. Furthermore, the effect is confirmed in primary cells derived from patients with CML.
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MESH Headings
- Animals
- Humans
- Mice
- Apoptosis/genetics
- Cell Proliferation/genetics
- CRISPR-Cas Systems
- Fusion Proteins, bcr-abl/genetics
- Fusion Proteins, bcr-abl/metabolism
- Genes, abl
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/genetics
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/metabolism
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/therapy
- Proto-Oncogene Proteins c-bcr/genetics
- Proto-Oncogene Proteins c-bcr/metabolism
- RNA, Guide, CRISPR-Cas Systems
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Affiliation(s)
- Jianling Zeng
- Translational Medicine Institute, the First People's Hospital of Chenzhou, Hengyang Medical School, University of South China, Chenzhou 423000, China
- The First Affiliated Hospital of Xiangnan University, Chenzhou 423000, China
| | - Xinquan Liang
- Translational Medicine Institute, the First People's Hospital of Chenzhou, Hengyang Medical School, University of South China, Chenzhou 423000, China
- The First Affiliated Hospital of Xiangnan University, Chenzhou 423000, China
| | - Lili Duan
- Translational Medicine Institute, the First People's Hospital of Chenzhou, Hengyang Medical School, University of South China, Chenzhou 423000, China
- The First Affiliated Hospital of Xiangnan University, Chenzhou 423000, China
| | - Fenghua Tan
- Translational Medicine Institute, the First People's Hospital of Chenzhou, Hengyang Medical School, University of South China, Chenzhou 423000, China
- The First Affiliated Hospital of Xiangnan University, Chenzhou 423000, China
| | - Liujie Chen
- Translational Medicine Institute, the First People's Hospital of Chenzhou, Hengyang Medical School, University of South China, Chenzhou 423000, China
- The First Affiliated Hospital of Xiangnan University, Chenzhou 423000, China
| | - Jiayao Qu
- Translational Medicine Institute, the First People's Hospital of Chenzhou, Hengyang Medical School, University of South China, Chenzhou 423000, China
| | - Jia Li
- Translational Medicine Institute, the First People's Hospital of Chenzhou, Hengyang Medical School, University of South China, Chenzhou 423000, China
- The First Affiliated Hospital of Xiangnan University, Chenzhou 423000, China
| | - Kai Li
- Translational Medicine Institute, the First People's Hospital of Chenzhou, Hengyang Medical School, University of South China, Chenzhou 423000, China
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Hunan University of Chinese Medicine, Changsha 410208, China
| | - Dixian Luo
- Department of Laboratory Medicine, Huazhong University of Science and Technology Union Shenzhen Hospital (Nanshan Hospital), Shenzhen 518000, China
| | - Zheng Hu
- Translational Medicine Institute, the First People's Hospital of Chenzhou, Hengyang Medical School, University of South China, Chenzhou 423000, China
- The First Affiliated Hospital of Xiangnan University, Chenzhou 423000, China
- National & Local Joint Engineering Laboratory for High-through Molecular Diagnosis Technology, the First People's Hospital of Chenzhou, Chenzhou 423000, China
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2
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Macarrón Palacios A, Korus P, Wilkens BGC, Heshmatpour N, Patnaik SR. Revolutionizing in vivo therapy with CRISPR/Cas genome editing: breakthroughs, opportunities and challenges. Front Genome Ed 2024; 6:1342193. [PMID: 38362491 PMCID: PMC10867117 DOI: 10.3389/fgeed.2024.1342193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 01/11/2024] [Indexed: 02/17/2024] Open
Abstract
Genome editing using the CRISPR/Cas system has revolutionized the field of genetic engineering, offering unprecedented opportunities for therapeutic applications in vivo. Despite the numerous ongoing clinical trials focusing on ex vivo genome editing, recent studies emphasize the therapeutic promise of in vivo gene editing using CRISPR/Cas technology. However, it is worth noting that the complete attainment of the inherent capabilities of in vivo therapy in humans is yet to be accomplished. Before the full realization of in vivo therapeutic potential, it is crucial to achieve enhanced specificity in selectively targeting defective cells while minimizing harm to healthy cells. This review examines emerging studies, focusing on CRISPR/Cas-based pre-clinical and clinical trials for innovative therapeutic approaches for a wide range of diseases. Furthermore, we emphasize targeting cancer-specific sequences target in genes associated with tumors, shedding light on the diverse strategies employed in cancer treatment. We highlight the various challenges associated with in vivo CRISPR/Cas-based cancer therapy and explore their prospective clinical translatability and the strategies employed to overcome these obstacles.
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3
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Khoshandam M, Soltaninejad H, Mousazadeh M, Hamidieh AA, Hosseinkhani S. Clinical applications of the CRISPR/Cas9 genome-editing system: Delivery options and challenges in precision medicine. Genes Dis 2024; 11:268-282. [PMID: 37588217 PMCID: PMC10425811 DOI: 10.1016/j.gendis.2023.02.027] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 02/08/2023] [Indexed: 03/29/2023] Open
Abstract
CRISPR/Cas9 is an effective gene editing tool with broad applications for the prevention or treatment of numerous diseases. It depends on CRISPR (clustered regularly interspaced short palindromic repeats) as a bacterial immune system and plays as a gene editing tool. Due to the higher specificity and efficiency of CRISPR/Cas9 compared to other editing approaches, it has been broadly investigated to treat numerous hereditary and acquired illnesses, including cancers, hemolytic diseases, immunodeficiency disorders, cardiovascular diseases, visual maladies, neurodegenerative conditions, and a few X-linked disorders. CRISPR/Cas9 system has been used to treat cancers through a variety of approaches, with stable gene editing techniques. Here, the applications and clinical trials of CRISPR/Cas9 in various illnesses are described. Due to its high precision and efficiency, CRISPR/Cas9 strategies may treat gene-related illnesses by deleting, inserting, modifying, or blocking the expression of specific genes. The most challenging barrier to the in vivo use of CRISPR/Cas9 like off-target effects will be discussed. The use of transfection vehicles for CRISPR/Cas9, including viral vectors (such as an Adeno-associated virus (AAV)), and the development of non-viral vectors is also considered.
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Affiliation(s)
- Mohadeseh Khoshandam
- Department of Reproductive Biology, Academic Center for Education, Culture, and Research (ACECR), Qom Branch, Qom 3716986466, Iran
- National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran 14155-6463, Iran
| | - Hossein Soltaninejad
- Faculty of Interdisciplinary Science and Technology, Tarbiat Modares University, Tehran 14117-13116, Iran
- Pediatric Cell and Gene Therapy Research Center, Gene, Cell & Tissue Research Institute, Tehran University of Medical Sciences, Tehran 14155-6559, Iran
| | - Marziyeh Mousazadeh
- Department of Nanobiotechnology, Faculty of Biological Sciences, Tarbiat Modares University, Tehran 14117-13116, Iran
| | - Amir Ali Hamidieh
- Pediatric Cell and Gene Therapy Research Center, Gene, Cell & Tissue Research Institute, Tehran University of Medical Sciences, Tehran 14155-6559, Iran
| | - Saman Hosseinkhani
- Department of Biochemistry, Faculty of Biological Sciences, Tarbiat Modares University, Tehran 14117-13116, Iran
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4
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Mohammadian Gol T, Ureña-Bailén G, Hou Y, Sinn R, Antony JS, Handgretinger R, Mezger M. CRISPR medicine for blood disorders: Progress and challenges in delivery. Front Genome Ed 2023; 4:1037290. [PMID: 36687779 PMCID: PMC9853164 DOI: 10.3389/fgeed.2022.1037290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 12/22/2022] [Indexed: 01/09/2023] Open
Abstract
Blood disorders are a group of diseases including hematological neoplasms, clotting disorders and orphan immune deficiency diseases that affects human health. Current improvements in genome editing based therapeutics demonstrated preclinical and clinical proof to treat different blood disorders. Genome editing components such as Cas nucleases, guide RNAs and base editors are supplied in the form of either a plasmid, an mRNA, or a ribonucleoprotein complex. The most common delivery vehicles for such components include viral vectors (e.g., AAVs and RV), non-viral vectors (e.g., LNPs and polymers) and physical delivery methods (e.g., electroporation and microinjection). Each of the delivery vehicles specified above has its own advantages and disadvantages and the development of a safe transferring method for ex vivo and in vivo application of genome editing components is still a big challenge. Moreover, the delivery of genome editing payload to the target blood cells possess key challenges to provide a possible cure for patients with inherited monogenic blood diseases and hematological neoplastic tumors. Here, we critically review and summarize the progress and challenges related to the delivery of genome editing elements to relevant blood cells in an ex vivo or in vivo setting. In addition, we have attempted to provide a future clinical perspective of genome editing to treat blood disorders with possible clinical grade improvements in delivery methods.
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Affiliation(s)
- Tahereh Mohammadian Gol
- Department of Hematology and Oncology, University Children’s Hospital, University of Tübingen, Tübingen, Germany
| | - Guillermo Ureña-Bailén
- Department of Hematology and Oncology, University Children’s Hospital, University of Tübingen, Tübingen, Germany
| | - Yujuan Hou
- Department of Hematology and Oncology, University Children’s Hospital, University of Tübingen, Tübingen, Germany
| | - Ralph Sinn
- Department of Hematology and Oncology, University Children’s Hospital, University of Tübingen, Tübingen, Germany
| | - Justin S. Antony
- Department of Hematology and Oncology, University Children’s Hospital, University of Tübingen, Tübingen, Germany
| | - Rupert Handgretinger
- Department of Hematology and Oncology, University Children’s Hospital, University of Tübingen, Tübingen, Germany,Abu Dhabi Stem Cells Center, Abu Dhabi, United Arab Emirates
| | - Markus Mezger
- Department of Hematology and Oncology, University Children’s Hospital, University of Tübingen, Tübingen, Germany,*Correspondence: Markus Mezger,
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5
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Yang C, Cui X, Xu L, Zhang Q, Tang S, Zhang M, Xie N. Highly precise breakpoint detection of chromosome balanced translocation in chronic myelogenous leukaemia: Case series. J Cell Mol Med 2022; 26:4721-4726. [PMID: 35903038 PMCID: PMC9443941 DOI: 10.1111/jcmm.17500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Revised: 06/21/2022] [Accepted: 06/26/2022] [Indexed: 11/29/2022] Open
Abstract
Chronic myelogenous leukaemia (CML) has a special phenomenon of chromosome translocation, which is called Philadelphia chromosome translocation. However, the detailed connection of this structure is troublesome and expensive to be identified. Low‐coverage whole genome sequencing (LCWGS) could not only detect the previously unknown chromosomal translocation, but also provide the breakpoint candidate small region (with an accuracy of ±200 bases). Importantly, the sequencing cost of LCWGS is about US$300. Then, with the Sanger DNA sequencing, the precise breakpoint can be determined at a single base level. In our project, with LCWGS, BCR and ABL1 are successfully identified to be disrupted in three CML patients (at chr22:23,632,356 and chr9:133,590,450; chr22:23,633,748 and chr9:133,635,781; chr22: 23,631,831 and chr9:133,598,513, respectively). Due to the reconnection after chromosome breakage, classical fusion gene (BCR::ABL1) was found in bone marrow and peripheral blood. The precise breakpoints were helpful to investigate the pathogenic mechanism of CML and could better guide the classification of CML subtypes. This LCWGS method is universal and can be used to detect all diseases related to chromosome variation, such as solid tumours, liquid tumours and birth defects.
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Affiliation(s)
- Chuanchun Yang
- Guangdong Medical University, Zhanjiang, China.,CheerLand Biological Technology Co., Ltd, Shenzhen, China
| | - Xiaoli Cui
- CheerLand Biological Technology Co., Ltd, Shenzhen, China
| | - Lei Xu
- Department of Hematology, Peking University Shenzhen Hospital, Shenzhen, China
| | - Qian Zhang
- Department of Hematology, Peking University Shenzhen Hospital, Shenzhen, China
| | - Shanmei Tang
- CheerLand Biological Technology Co., Ltd, Shenzhen, China
| | - Mengmeng Zhang
- CheerLand Biological Technology Co., Ltd, Shenzhen, China
| | - Ni Xie
- Guangdong Medical University, Zhanjiang, China.,Shenzhen Second People's Hospital, Shenzhen, China
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6
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Vuelta E, Ordoñez JL, Sanz DJ, Ballesteros S, Hernández-Rivas JM, Méndez-Sánchez L, Sánchez-Martín M, García-Tuñón I. CRISPR/Cas9-Directed Gene Trap Constitutes a Selection System for Corrected BCR/ABL Leukemic Cells in CML. Int J Mol Sci 2022; 23:ijms23126386. [PMID: 35742831 PMCID: PMC9224210 DOI: 10.3390/ijms23126386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 06/02/2022] [Accepted: 06/05/2022] [Indexed: 11/17/2022] Open
Abstract
Chronic myeloid leukaemia (CML) is a haematological neoplasm driven by the BCR/ABL fusion oncogene. The monogenic aspect of the disease and the feasibility of ex vivo therapies in haematological disorders make CML an excellent candidate for gene therapy strategies. The ability to abolish any coding sequence by CRISPR-Cas9 nucleases offers a powerful therapeutic opportunity to CML patients. However, a definitive cure can only be achieved when only CRISPR-edited cells are selected. A gene-trapping approach combined with CRISPR technology would be an ideal approach to ensure this. Here, we developed a CRISPR-Trap strategy that efficiently inserts a donor gene trap (SA-CMV-Venus) cassette into the BCR/ABL-specific fusion point in the CML K562 human cell line. The trapping cassette interrupts the oncogene coding sequence and expresses a reporter gene that enables the selection of edited cells. Quantitative mRNA expression analyses showed significantly higher level of expression of the BCR/Venus allele coupled with a drastically lower level of BCR/ABL expression in Venus+ cell fractions. Functional in vitro experiments showed cell proliferation arrest and apoptosis in selected Venus+ cells. Finally, xenograft experiments with the selected Venus+ cells showed a large reduction in tumour growth, thereby demonstrating a therapeutic benefit in vivo. This study represents proof of concept for the therapeutic potential of a CRISPR-Trap system as a novel strategy for gene elimination in haematological neoplasms.
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Affiliation(s)
- Elena Vuelta
- Departamento de Medicina, Universidad de Salamanca, 37007 Salamanca, Spain; (E.V.); (S.B.); (J.M.H.-R.)
- Unidad de Diagnóstico Molecular y Celular del Cáncer, Instituto Biología Molecular y Celular del Cáncer (USAL/CSIC), 37007 Salamanca, Spain;
- Servicio de Transgénesis, NUCLEUS, Universidad de Salamanca, 37007 Salamanca, Spain;
- Instituto de Investigación Biomédica de Salamanca (IBSAL), 37007 Salamanca, Spain
| | - José L. Ordoñez
- Instituto de Investigación Biomédica de Salamanca (IBSAL), 37007 Salamanca, Spain
- Departamento de Fisiología y Farmacología, Facultad de Farmacia, Universidad de Salamanca, 37007 Salamanca, Spain;
| | - David J. Sanz
- Unidad de Diagnóstico Molecular y Celular del Cáncer, Instituto Biología Molecular y Celular del Cáncer (USAL/CSIC), 37007 Salamanca, Spain;
| | - Sandra Ballesteros
- Departamento de Medicina, Universidad de Salamanca, 37007 Salamanca, Spain; (E.V.); (S.B.); (J.M.H.-R.)
- Unidad de Diagnóstico Molecular y Celular del Cáncer, Instituto Biología Molecular y Celular del Cáncer (USAL/CSIC), 37007 Salamanca, Spain;
| | - Jesús M. Hernández-Rivas
- Departamento de Medicina, Universidad de Salamanca, 37007 Salamanca, Spain; (E.V.); (S.B.); (J.M.H.-R.)
- Unidad de Diagnóstico Molecular y Celular del Cáncer, Instituto Biología Molecular y Celular del Cáncer (USAL/CSIC), 37007 Salamanca, Spain;
- Instituto de Investigación Biomédica de Salamanca (IBSAL), 37007 Salamanca, Spain
- Servicio de Hematología, Hospital Universitario de Salamanca, 37007 Salamanca, Spain
| | - Lucía Méndez-Sánchez
- Servicio de Transgénesis, NUCLEUS, Universidad de Salamanca, 37007 Salamanca, Spain;
| | - Manuel Sánchez-Martín
- Departamento de Medicina, Universidad de Salamanca, 37007 Salamanca, Spain; (E.V.); (S.B.); (J.M.H.-R.)
- Servicio de Transgénesis, NUCLEUS, Universidad de Salamanca, 37007 Salamanca, Spain;
- Instituto de Investigación Biomédica de Salamanca (IBSAL), 37007 Salamanca, Spain
- Correspondence: (M.S.-M.); (I.G.-T.)
| | - Ignacio García-Tuñón
- Departamento de Medicina, Universidad de Salamanca, 37007 Salamanca, Spain; (E.V.); (S.B.); (J.M.H.-R.)
- Unidad de Diagnóstico Molecular y Celular del Cáncer, Instituto Biología Molecular y Celular del Cáncer (USAL/CSIC), 37007 Salamanca, Spain;
- Instituto de Investigación Biomédica de Salamanca (IBSAL), 37007 Salamanca, Spain
- Correspondence: (M.S.-M.); (I.G.-T.)
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Tsai ML, Lee CH, Huang LC, Chen YH, Liu WN, Lin CY, Hsu KW, Lee AW, Lin CL. CRISPR-mediated knockout of VEGFR2/KDR inhibits cell growth in a squamous thyroid cancer cell line. FEBS Open Bio 2022; 12:993-1005. [PMID: 35313079 PMCID: PMC9063427 DOI: 10.1002/2211-5463.13399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 02/17/2022] [Accepted: 03/18/2022] [Indexed: 11/29/2022] Open
Abstract
Squamous and anaplastic thyroid cancers are the most aggressive and life‐threatening cancer types in humans, with the involvement of lymph nodes in 59% of cases and distant metastases in 26% of cases of all thyroid cancers. The median survival of squamous thyroid cancer patients is < 8 months and therefore is of high clinical concern. Here, we show that both VEGFC and VEGFR2/KDR are overexpressed in thyroid cancers, indicating that VEGF/VEGFR signaling plays a carcinogenic role in thyroid cancer development. Using CRISPR/Cas9, we established a KDR knockout (KO) SW579 squamous thyroid cancer cell line that exhibited dramatically decreased colony formation and invasion abilities (30% and 60% reduction, respectively) when compared to scrambled control cells. To validate the potential of KDR as a therapeutic target for thyroid cancers, we used the KDR RTK inhibitor sunitinib. Protein analysis and live/dead assay were performed to demonstrate that sunitinib significantly inhibited cell growth signal transduction and induced cell apoptosis of SW579 cells. These results suggest that selective targeting of KDR may have potential for development into novel anti‐cancer therapies to suppress VEGF/VEGFR‐mediated cancer development in patients with clinical advanced thyroid cancer.
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Affiliation(s)
- Ming-Lin Tsai
- Department of General Surgery, Cathay General Hospital, Taipei, Taiwan
| | - Chia-Hwa Lee
- School of Medical Laboratory Science and Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan.,TMU Research Center of Cancer Translational Medicine, Taipei Medical University, Taipei, Taiwan.,Ph.D. Program in Medicine Biotechnology, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Li-Chi Huang
- Department of Internal Medicine, Cathay General Hospital, Taipei, Taiwan.,Department of Endocrinology and Metabolism, Cathay General Hospital, Taipei, Taiwan
| | - Yu-Hsin Chen
- Department of Internal Medicine, Cathay General Hospital, Taipei, Taiwan.,Department of Endocrinology and Metabolism, Cathay General Hospital, Taipei, Taiwan.,Department of cytology, Cathay General Hospital, Taipei, Taiwan
| | - Wei-Ni Liu
- School of Medical Laboratory Science and Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Chun-Yu Lin
- Institute of Bioinformatics and Systems Biology, National Yang Ming Chiao Tung University, Hsinchu, Taiwan.,Center for Intelligent Drug Systems and Smart Bio-devices, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
| | - Kai-Wen Hsu
- Institute of New Drug Development, China Medical University, Taichung City, Taiwan.,Research Center for Cancer Biology, China Medical University, Taichung City, Taiwan
| | - Ai-Wei Lee
- Department of Anatomy and Cell Biology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Ching-Ling Lin
- Department of Internal Medicine, Cathay General Hospital, Taipei, Taiwan.,Department of Endocrinology and Metabolism, Cathay General Hospital, Taipei, Taiwan.,Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,School of Medicine, National Tsing Hua University, Hsinchu, Taiwan
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8
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Sun H, Li Y, Wang X, Zhou X, Rong S, Liang D, Sun G, Cao H, Sun H, Wang R, Yan Y, Xie S, Sun Y. TRIB2 regulates the expression of miR‑33a‑5p through the ERK/c‑Fos pathway to affect the imatinib resistance of chronic myeloid leukemia cells. Int J Oncol 2022; 60:49. [PMID: 35302171 PMCID: PMC8973951 DOI: 10.3892/ijo.2022.5339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 02/15/2022] [Indexed: 11/30/2022] Open
Abstract
Chronic myeloid leukemia (CML) is a hematological disease, and imatinib (IM) resistance represents a major problem for its clinical treatment. In the present study, the role of tribbles pseudokinase 2 (TRIB2) in IM resistance of CML and the possible mechanism were investigated. It was found that TRIB2 was highly expressed in IM-resistant patients with CML through the Oncomine database and this conclusion was confirmed using reverse transcription-quantitative PCR and western blot experiments. Knockdown of TRIB2 was found to increase the drug sensitivity of KG cells to IM using Cell-Counting Kit-8 (CCK-8) assays, and the low-expression TRIB2 mice were further found to be more sensitive to the IM and have a higher survival rate in leukemia model mice. Moreover, using western blot and luciferase experiments, it was found that TRIB2 could regulate c-Fos through the ERK signaling pathway, and c-Fos suppressed the transcriptional activity and the expression of miR-33a-5p. Further investigation identified that the binding site for c-Fos to function on miR-33a-5p was the -958-965 region. Finally, CCK-8 assays and western blot experiments demonstrated that miR-33a-5p could inhibit the proliferation of KG cells and reduce IM resistance by suppressing the expression of HMGA2. In conclusion, it was demonstrated that TRIB2 regulates miR-33a-5p to reverse IM resistance in CML, which may help identify novel targets and therapeutic strategies for the clinical treatment of IM resistance.
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Affiliation(s)
- Hang Sun
- Department of Pediatrics, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, Shandong 264100, P.R. China
| | - Youjie Li
- Department of Biochemistry and Molecular Biology, Binzhou Medical University, Yantai, Shandong 264033, P.R. China
| | - Xiao Wang
- Department of Biochemistry and Molecular Biology, Binzhou Medical University, Yantai, Shandong 264033, P.R. China
| | - Xue Zhou
- Department of Pediatrics, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, Shandong 264100, P.R. China
| | - Simin Rong
- Department of Biochemistry and Molecular Biology, Binzhou Medical University, Yantai, Shandong 264033, P.R. China
| | - Dongmin Liang
- Department of Biochemistry and Molecular Biology, Binzhou Medical University, Yantai, Shandong 264033, P.R. China
| | - Guangbin Sun
- Department of Biochemistry and Molecular Biology, Binzhou Medical University, Yantai, Shandong 264033, P.R. China
| | - Huizhen Cao
- Department of Pediatrics, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, Shandong 264100, P.R. China
| | - Hongfang Sun
- Department of Biochemistry and Molecular Biology, Binzhou Medical University, Yantai, Shandong 264033, P.R. China
| | - Ranran Wang
- School of Rehabilitation Medicine, Binzhou Medical University, Yantai, Shandong 264033, P.R. China
| | - Yunfei Yan
- Department of Biochemistry and Molecular Biology, Binzhou Medical University, Yantai, Shandong 264033, P.R. China
| | - Shuyang Xie
- Department of Biochemistry and Molecular Biology, Binzhou Medical University, Yantai, Shandong 264033, P.R. China
| | - Yunxiao Sun
- Department of Pediatrics, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, Shandong 264100, P.R. China
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9
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Wang SW, Gao C, Zheng YM, Yi L, Lu JC, Huang XY, Cai JB, Zhang PF, Cui YH, Ke AW. Current applications and future perspective of CRISPR/Cas9 gene editing in cancer. Mol Cancer 2022; 21:57. [PMID: 35189910 PMCID: PMC8862238 DOI: 10.1186/s12943-022-01518-8] [Citation(s) in RCA: 73] [Impact Index Per Article: 36.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 01/24/2022] [Indexed: 02/08/2023] Open
Abstract
Clustered regularly interspaced short palindromic repeats (CRISPR) system provides adaptive immunity against plasmids and phages in prokaryotes. This system inspires the development of a powerful genome engineering tool, the CRISPR/CRISPR-associated nuclease 9 (CRISPR/Cas9) genome editing system. Due to its high efficiency and precision, the CRISPR/Cas9 technique has been employed to explore the functions of cancer-related genes, establish tumor-bearing animal models and probe drug targets, vastly increasing our understanding of cancer genomics. Here, we review current status of CRISPR/Cas9 gene editing technology in oncological research. We first explain the basic principles of CRISPR/Cas9 gene editing and introduce several new CRISPR-based gene editing modes. We next detail the rapid progress of CRISPR screening in revealing tumorigenesis, metastasis, and drug resistance mechanisms. In addition, we introduce CRISPR/Cas9 system delivery vectors and finally demonstrate the potential of CRISPR/Cas9 engineering to enhance the effect of adoptive T cell therapy (ACT) and reduce adverse reactions.
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10
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Solayappan M, Azlan A, Khor KZ, Yik MY, Khan M, Yusoff NM, Moses EJ. Utilization of CRISPR-Mediated Tools for Studying Functional Genomics in Hematological Malignancies: An Overview on the Current Perspectives, Challenges, and Clinical Implications. Front Genet 2022; 12:767298. [PMID: 35154242 PMCID: PMC8834884 DOI: 10.3389/fgene.2021.767298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 11/17/2021] [Indexed: 11/26/2022] Open
Abstract
Hematological malignancies (HM) are a group of neoplastic diseases that are usually heterogenous in nature due to the complex underlying genetic aberrations in which collaborating mutations enable cells to evade checkpoints that normally safeguard it against DNA damage and other disruptions of healthy cell growth. Research regarding chromosomal structural rearrangements and alterations, gene mutations, and functionality are currently being carried out to understand the genomics of these abnormalities. It is also becoming more evident that cross talk between the functional changes in transcription and proteins gives the characteristics of the disease although specific mutations may induce unique phenotypes. Functional genomics is vital in this aspect as it measures the complete genetic change in cancerous cells and seeks to integrate the dynamic changes in these networks to elucidate various cancer phenotypes. The advent of CRISPR technology has indeed provided a superfluity of benefits to mankind, as this versatile technology enables DNA editing in the genome. The CRISPR-Cas9 system is a precise genome editing tool, and it has revolutionized methodologies in the field of hematology. Currently, there are various CRISPR systems that are used to perform robust site-specific gene editing to study HM. Furthermore, experimental approaches that are based on CRISPR technology have created promising tools for developing effective hematological therapeutics. Therefore, this review will focus on diverse applications of CRISPR-based gene-editing tools in HM and its potential future trajectory. Collectively, this review will demonstrate the key roles of different CRISPR systems that are being used in HM, and the literature will be a representation of a critical step toward further understanding the biology of HM and the development of potential therapeutic approaches.
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Affiliation(s)
- Maheswaran Solayappan
- Regenerative Medicine Sciences Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Penang, Malaysia
- Department of Biotechnology, Faculty of Applied Sciences, AIMST University, Bedong, Malaysia
| | - Adam Azlan
- Regenerative Medicine Sciences Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Penang, Malaysia
- *Correspondence: Emmanuel Jairaj Moses,
| | - Kang Zi Khor
- Regenerative Medicine Sciences Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Penang, Malaysia
| | - Mot Yee Yik
- Regenerative Medicine Sciences Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Penang, Malaysia
| | - Matiullah Khan
- Department of Pathology, Faculty of Medicine, AIMST University, Bedong, Malaysia
| | - Narazah Mohd Yusoff
- Regenerative Medicine Sciences Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Penang, Malaysia
| | - Emmanuel Jairaj Moses
- Regenerative Medicine Sciences Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Penang, Malaysia
- *Correspondence: Emmanuel Jairaj Moses,
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11
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Lin CL, Tsai ML, Chen YH, Liu WN, Lin CY, Hsu KW, Huang CY, Chang YJ, Wei PL, Chen SH, Huang LC, Lee CH. Platelet-Derived Growth Factor Receptor-α Subunit Targeting Suppresses Metastasis in Advanced Thyroid Cancer In Vitro and In Vivo. Biomol Ther (Seoul) 2021; 29:551-561. [PMID: 34031270 PMCID: PMC8411021 DOI: 10.4062/biomolther.2020.205] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 04/22/2021] [Accepted: 04/23/2021] [Indexed: 11/27/2022] Open
Abstract
Thyroid cancer is the most common endocrine malignancy. Patients with well-differentiated thyroid cancers, such as papillary and follicular cancers, have a favorable prognosis. However, poorly differentiated thyroid cancers, such as medullary, squamous and anaplastic advanced thyroid cancers, are very aggressive and insensitive to radioiodine treatment. Thus, novel therapies that attenuate metastasis are urgently needed. We found that both PDGFC and PDGFRA are predominantly expressed in thyroid cancers and that the survival rate is significantly lower in patients with high PDGFRA expression. This finding indicates the important role of PDGF/PDGFR signaling in thyroid cancer development. Next, we established a SW579 squamous thyroid cancer cell line with 95.6% PDGFRA gene insertion and deletions (indels) through CRISPR/Cas9. Protein and invasion analysis showed a dramatic loss in EMT marker expression and metastatic ability. Furthermore, xenograft tumors derived from PDGFRA gene-edited SW579 cells exhibited a minor decrease in tumor growth. However, distant lung metastasis was completely abolished upon PDGFRA gene editing, implying that PDGFRA could be an effective target to inhibit distant metastasis in advanced thyroid cancers. To translate this finding to the clinic, we used the most relevant multikinase inhibitor, imatinib, to inhibit PDGFRA signaling. The results showed that imatinib significantly suppressed cell growth, induced cell cycle arrest and cell death in SW579 cells. Our developed noninvasive apoptosis detection sensor (NIADS) indicated that imatinib induced cell apoptosis through caspase-3 activation. In conclusion, we believe that developing a specific and selective targeted therapy for PDGFRA would effectively suppress PDGFRA-mediated cancer aggressiveness in advanced thyroid cancers.
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Affiliation(s)
- Ching-Ling Lin
- Department of Internal Medicine, Cathay General Hospital, Taipei 10630, Taiwan.,Department of Endocrinology and Metabolism, Cathay General Hospital, Taipei 10630, Taiwan.,Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Ming-Lin Tsai
- Department of General Surgery, Cathay General Hospital, Taipei 10630, Taiwan
| | - Yu-Hsin Chen
- Department of Internal Medicine, Cathay General Hospital, Taipei 10630, Taiwan.,Department of Endocrinology and Metabolism, Cathay General Hospital, Taipei 10630, Taiwan.,Department of Cytology, Cathay General Hospital, Taipei 10630, Taiwan
| | - Wei-Ni Liu
- School of Medical Laboratory Science and Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan
| | - Chun-Yu Lin
- Institute of Bioinformatics and Systems Biology, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan.,Center for Intelligent Drug Systems and Smart Bio-Devices, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
| | - Kai-Wen Hsu
- Institute of New Drug Development, China Medical University, Taichung 40402, Taiwan.,Research Center for Cancer Biology, China Medical University, Taichung 40402, Taiwan
| | - Chien-Yu Huang
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan.,Division of General Surgery, Department of Surgery, Shuang Ho Hospital, Taipei Medical University, Taipei 11031, Taiwan
| | - Yu-Jia Chang
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan.,TMU Research Center of Cancer Translational Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Po-Li Wei
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan.,TMU Research Center of Cancer Translational Medicine, Taipei Medical University, Taipei 11031, Taiwan.,Division of Colorectal Surgery, Department of Surgery, Taipei Medical University Hospital, Taipei Medical University, Taipei 11031, Taiwan.,Graduate Institute of Cancer Biology and Drug Discovery, Taipei Medical University, Taipei 11031, Taiwan
| | - Shu-Huey Chen
- Department of Pediatrics, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan.,Department of Pediatrics, Shuang Ho Hospital, Taipei Medical University, New Taipei City 23561, Taiwan
| | - Li-Chi Huang
- Department of Internal Medicine, Cathay General Hospital, Taipei 10630, Taiwan.,Department of Endocrinology and Metabolism, Cathay General Hospital, Taipei 10630, Taiwan
| | - Chia-Hwa Lee
- School of Medical Laboratory Science and Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan.,TMU Research Center of Cancer Translational Medicine, Taipei Medical University, Taipei 11031, Taiwan.,Ph. D. Program in Medical Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan
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12
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Vuelta E, Ordoñez JL, Alonso-Pérez V, Méndez L, Hernández-Carabias P, Saldaña R, Sevilla J, Sebastián E, Muntión S, Sánchez-Guijo F, Hernández-Rivas JM, García-Tuñón I, Sánchez-Martín M. CRISPR-Cas9 Technology as a Tool to Target Gene Drivers in Cancer: Proof of Concept and New Opportunities to Treat Chronic Myeloid Leukemia. CRISPR J 2021; 4:519-535. [PMID: 34406033 DOI: 10.1089/crispr.2021.0009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Chronic myeloid leukemia (CML) is a hematopoietic malignancy produced by a unique oncogenic event involving the constitutively active tyrosine-kinase (TK) BCR/ABL1. TK inhibitors (TKI) changed its prognosis and natural history. Unfortunately, ABL1 remains unaffected by TKIs. Leukemic stem cells (LSCs) remain, and resistant mutations arise during treatment. To address this problem, we have designed a therapeutic CRISPR-Cas9 deletion system targeting BCR/ABL1. The system was efficiently electroporated to cell lines, LSCs from a CML murine model, and LSCs from CML patients at diagnosis, generating a specific ABL1 null mutation at high efficiency and allowing the edited leukemic cells to be detected and tracked. The CRISPR-Cas9 deletion system triggered cell proliferation arrest and apoptosis in murine and human CML cell lines. Patient and murine-derived xenografts with CRISPR-edited LSCs in NOD SCID gamma niches revealed that normal multipotency and repopulation ability of CRISPR edited LSCs were fully restored. Normal hematopoiesis was restored, avoiding myeloid bias. To the best of our knowledge, we show for the first time how a CRISPR-Cas9 deletion system efficiently interrupts BCR/ABL1 oncogene in primary LSCs to bestow a therapeutic benefit. This study is a proof of concept for genome editing in all those diseases, like CML, sustained by a single oncogenic event, opening up new therapeutic opportunities.
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Affiliation(s)
- Elena Vuelta
- Unidad de Diagnóstico Molecular y Celular del Cáncer, Instituto Biología Molecular y Celular del Cáncer (USAL/CSIC), Salamanca, Spain; Hospital Universitario de Salamanca, Salamanca, Spain
- Departamento de Medicina, Universidad de Salamanca, Salamanca, Spain; Hospital Universitario de Salamanca, Salamanca, Spain
- Servicio de Transgénesis, NUCLEUS, Universidad de Salamanca, Salamanca, Spain; Hospital Universitario de Salamanca, Salamanca, Spain
| | - José Luis Ordoñez
- Unidad de Diagnóstico Molecular y Celular del Cáncer, Instituto Biología Molecular y Celular del Cáncer (USAL/CSIC), Salamanca, Spain; Hospital Universitario de Salamanca, Salamanca, Spain
- IBSAL, Instituto de Investigación Biomédica de Salamanca, Salamanca, Spain; Hospital Universitario de Salamanca, Salamanca, Spain
| | - Verónica Alonso-Pérez
- Unidad de Diagnóstico Molecular y Celular del Cáncer, Instituto Biología Molecular y Celular del Cáncer (USAL/CSIC), Salamanca, Spain; Hospital Universitario de Salamanca, Salamanca, Spain
- IBSAL, Instituto de Investigación Biomédica de Salamanca, Salamanca, Spain; Hospital Universitario de Salamanca, Salamanca, Spain
| | - Lucía Méndez
- Servicio de Transgénesis, NUCLEUS, Universidad de Salamanca, Salamanca, Spain; Hospital Universitario de Salamanca, Salamanca, Spain
| | - Patricia Hernández-Carabias
- Servicio de Transgénesis, NUCLEUS, Universidad de Salamanca, Salamanca, Spain; Hospital Universitario de Salamanca, Salamanca, Spain
| | - Raquel Saldaña
- Servicio de Hematología, Hospital de Jerez, Cádiz, Spain; Hospital Universitario de Salamanca, Salamanca, Spain
| | - Julián Sevilla
- Hospital Infantil Universitario Niño Jesús, Madrid, Spain; Hospital Universitario de Salamanca, Salamanca, Spain
| | - Elena Sebastián
- Hospital Infantil Universitario Niño Jesús, Madrid, Spain; Hospital Universitario de Salamanca, Salamanca, Spain
| | - Sandra Muntión
- Unidad de Diagnóstico Molecular y Celular del Cáncer, Instituto Biología Molecular y Celular del Cáncer (USAL/CSIC), Salamanca, Spain; Hospital Universitario de Salamanca, Salamanca, Spain
- Departamento de Medicina, Universidad de Salamanca, Salamanca, Spain; Hospital Universitario de Salamanca, Salamanca, Spain
- Hospital Infantil Universitario Niño Jesús, Madrid, Spain; Hospital Universitario de Salamanca, Salamanca, Spain
- RETIC TerCel y CIBERONC, ISCIII, Madrid, Spain; and Hospital Universitario de Salamanca, Salamanca, Spain
- Servicio de Hematología, Hospital Universitario de Salamanca, Salamanca, Spain
| | - Fermín Sánchez-Guijo
- Unidad de Diagnóstico Molecular y Celular del Cáncer, Instituto Biología Molecular y Celular del Cáncer (USAL/CSIC), Salamanca, Spain; Hospital Universitario de Salamanca, Salamanca, Spain
- Departamento de Medicina, Universidad de Salamanca, Salamanca, Spain; Hospital Universitario de Salamanca, Salamanca, Spain
- Hospital Infantil Universitario Niño Jesús, Madrid, Spain; Hospital Universitario de Salamanca, Salamanca, Spain
- RETIC TerCel y CIBERONC, ISCIII, Madrid, Spain; and Hospital Universitario de Salamanca, Salamanca, Spain
- Servicio de Hematología, Hospital Universitario de Salamanca, Salamanca, Spain
| | - Jesús María Hernández-Rivas
- Departamento de Medicina, Universidad de Salamanca, Salamanca, Spain; Hospital Universitario de Salamanca, Salamanca, Spain
- IBSAL, Instituto de Investigación Biomédica de Salamanca, Salamanca, Spain; Hospital Universitario de Salamanca, Salamanca, Spain
- Servicio de Hematología, Hospital Universitario de Salamanca, Salamanca, Spain
| | - Ignacio García-Tuñón
- Unidad de Diagnóstico Molecular y Celular del Cáncer, Instituto Biología Molecular y Celular del Cáncer (USAL/CSIC), Salamanca, Spain; Hospital Universitario de Salamanca, Salamanca, Spain
- IBSAL, Instituto de Investigación Biomédica de Salamanca, Salamanca, Spain; Hospital Universitario de Salamanca, Salamanca, Spain
| | - Manuel Sánchez-Martín
- Departamento de Medicina, Universidad de Salamanca, Salamanca, Spain; Hospital Universitario de Salamanca, Salamanca, Spain
- Servicio de Transgénesis, NUCLEUS, Universidad de Salamanca, Salamanca, Spain; Hospital Universitario de Salamanca, Salamanca, Spain
- IBSAL, Instituto de Investigación Biomédica de Salamanca, Salamanca, Spain; Hospital Universitario de Salamanca, Salamanca, Spain
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13
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Behr M, Zhou J, Xu B, Zhang H. In vivo delivery of CRISPR-Cas9 therapeutics: Progress and challenges. Acta Pharm Sin B 2021; 11:2150-2171. [PMID: 34522582 PMCID: PMC8424283 DOI: 10.1016/j.apsb.2021.05.020] [Citation(s) in RCA: 78] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 03/21/2021] [Accepted: 03/30/2021] [Indexed: 02/08/2023] Open
Abstract
Within less than a decade since its inception, CRISPR-Cas9-based genome editing has been rapidly advanced to human clinical trials in multiple disease areas. Although it is highly anticipated that this revolutionary technology will bring novel therapeutic modalities to many diseases by precisely manipulating cellular DNA sequences, the low efficiency of in vivo delivery must be enhanced before its therapeutic potential can be fully realized. Here we discuss the most recent progress of in vivo delivery of CRISPR-Cas9 systems, highlight innovative viral and non-viral delivery technologies, emphasize outstanding delivery challenges, and provide the most updated perspectives.
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14
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Future Approaches for Treating Chronic Myeloid Leukemia: CRISPR Therapy. BIOLOGY 2021; 10:biology10020118. [PMID: 33557401 PMCID: PMC7915349 DOI: 10.3390/biology10020118] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 01/27/2021] [Accepted: 02/02/2021] [Indexed: 12/11/2022]
Abstract
Simple Summary In the last two decades, the therapeutic landscape of several tumors have changed profoundly with the introduction of drugs against proteins encoded by oncogenes. Oncogenes play an essential role in human cancer and when their encoded proteins are inhibited by specific drugs, the tumoral process can be reverted or stopped. An example of this is the case of the chronic myeloid leukemia, in which all the pathological features can be attributed by a single oncogene. Most patients with this disease now have a normal life expectancy thanks to a rationality designed inhibitor. However, the drug only blocks the protein, the oncogene continues unaffected and treatment discontinuation is only an option for a small subset of patients. With the advent of genome-editing nucleases and, especially, the CRISPR/Cas9 system, the possibilities to destroy oncogenes now is feasible. A novel therapeutic tool has been developed with unimaginable limits in cancer treatment. Recent studies support that CRISPR/Cas9 system could be a definitive therapeutic option in chronic myeloid leukemia. This work reviews the biology of chronic myeloid leukemia, the emergence of the CRISPR system, and its ability as a specific tool for this disease. Abstract The constitutively active tyrosine-kinase BCR/ABL1 oncogene plays a key role in human chronic myeloid leukemia development and disease maintenance, and determines most of the features of this leukemia. For this reason, tyrosine-kinase inhibitors are the first-line treatment, offering most patients a life expectancy like that of an equivalent healthy person. However, since the oncogene stays intact, lifelong oral medication is essential, even though this triggers adverse effects in many patients. Furthermore, leukemic stem cells remain quiescent and resistance is observed in approximately 25% of patients. Thus, new therapeutic alternatives are still needed. In this scenario, the interruption/deletion of the oncogenic sequence might be an effective therapeutic option. The emergence of CRISPR (clustered regularly interspaced short palindromic repeats) technology can offer a definitive treatment based on its capacity to induce a specific DNA double strand break. Besides, it has the advantage of providing complete and permanent oncogene knockout, while tyrosine kinase inhibitors (TKIs) only ensure that BCR-ABL1 oncoprotein is inactivated during treatment. CRISPR/Cas9 cuts DNA in a sequence-specific manner making it possible to turn oncogenes off in a way that was not previously feasible in humans. This review describes chronic myeloid leukemia (CML) disease and the main advances in the genome-editing field by which it may be treated in the future.
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15
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Sun Y, Cheng M, Dong L, Yang K, Ma Z, Yu S, Yan P, Bai K, Zhu X, Zhang Q. Agaricus blazei extract (FA-2-b-β) induces apoptosis in chronic myeloid leukemia cells. Oncol Lett 2020; 20:270. [PMID: 32989404 PMCID: PMC7517625 DOI: 10.3892/ol.2020.12133] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 06/29/2020] [Indexed: 12/13/2022] Open
Abstract
Agaricus blazei Murill (AbM) is a mushroom belonging to the Basidiomycetes family, which is believed to have antitumor and antioxidative activities. Proteoglycans and ergosterol are considered the key compounds of AbM for antitumor properties and so are used in complementary and alternative medicine as an anticancer drug. AbM is used to avoid serious side effects that would inevitably affect patients. Currently, the efficacy of AbM against chronic myeloid leukemia (CML) has not been established. The present study aimed to investigate the antitumor activities of the acidic RNA protein complex, FA-2-b-β, extracted from wild edible AbM. The CML K562 cells or primary CML bone marrow (BM) cells were treated with FA-2-b-β at different concentrations and time points. CML cell line proliferation and apoptosis were determined using the CCK-8 assay or Annexin V/propidium iodide (PI) labeling, RT-qPCR and western blotting was performed to determine the involvement of the Wnt/β-catenin-associated apoptotic pathway. The results of the present study demonstrated that FA-2-b-β has a high anti-proliferative potency and strong pro-apoptotic effects. Thus, daily intake of mushrooms containing FA-2-b-β may be an adequate source as an alternative medicine in the management of CML, and may provide useful information for the development of a novel therapeutic target in this area.
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Affiliation(s)
- Yanqing Sun
- Department of Hematology, Gansu Provincial Hospital, Lanzhou, Gansu 730000, P.R. China.,Department of Clinical Medicine, Gansu University of Traditional Chinese Medicine, Lanzhou, Gansu 730000, P.R. China
| | - Mingxia Cheng
- Department of Hematology, Gansu Provincial Hospital, Lanzhou, Gansu 730000, P.R. China.,Department of Clinical Medicine, Gansu University of Traditional Chinese Medicine, Lanzhou, Gansu 730000, P.R. China
| | - Li Dong
- Department of Clinical Medicine, Gansu University of Traditional Chinese Medicine, Lanzhou, Gansu 730000, P.R. China
| | - Kehu Yang
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu 730000, P.R. China.,Institute of Clinical Research and Evidence Based Medicine, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Zhiyuan Ma
- Department of Gastroenterology, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Shangrui Yu
- Department of Gastroenterology, The Second Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Peijing Yan
- Institute of Clinical Research and Evidence Based Medicine, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Kuntian Bai
- Department of Clinical Medicine, Gansu University of Traditional Chinese Medicine, Lanzhou, Gansu 730000, P.R. China
| | - Xiaolong Zhu
- Department of Hematology, Gansu Provincial Hospital, Lanzhou, Gansu 730000, P.R. China
| | - Qike Zhang
- Department of Hematology, Gansu Provincial Hospital, Lanzhou, Gansu 730000, P.R. China
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