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Rawal P, Tripathi DM, Hemati H, Kumar J, Tyagi P, Sarin SK, Nain V, Kaur S. Targeted HBx gene editing by CRISPR/Cas9 system effectively reduces epithelial to mesenchymal transition and HBV replication in hepatoma cells. Liver Int 2024; 44:614-624. [PMID: 38105495 DOI: 10.1111/liv.15805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 10/28/2023] [Accepted: 11/12/2023] [Indexed: 12/19/2023]
Abstract
BACKGROUND AND AIMS Hepatitis B virus X protein (HBx) play a key role in pathogenesis of HBV-induced hepatocellular carcinoma (HCC) by promoting epithelial to mesenchymal transition (EMT). In this study, we hypothesized that inhibition of HBx is an effective strategy to combat HCC. METHODOLOGY AND RESULTS We designed and synthesized novel HBx gene specific single guide RNA (sgRNA) with CRISPR/Cas9 system and studied its in vitro effects on tumour properties of HepG2-2.15. Full length HBx gene was excised using HBx-CRISPR that resulted in significant knockdown of HBx expression in hepatoma cells. HBx-CRISPR also decreased levels of HBsAg and HBV cccDNA expression. A decreased expression of mesenchymal markers, proliferation and tumorigenic properties was observed in HBx-CRISPR treated cells as compared to controls in both two- and three- dimensional (2D and 3D) tumour models. Transcriptomics data showed that out of 1159 differentially expressed genes in HBx-CRISPR transfected cells as compared to controls, 70 genes were upregulated while 1089 genes associated with cell proliferation and EMT pathways were downregulated. CONCLUSION Thus, targeting of HBx by CRISPR/Cas9 gene editing system reduces covalently closed circular DNA (cccDNA) levels, HBsAg production and mesenchymal characteristics of HBV-HCC cells. We envision inhibition of HBx by CRISPR as a novel therapeutic approach for HBV-induced HCC.
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Affiliation(s)
- Preety Rawal
- School of Biotechnology, Gautam Buddha University, Greater Noida, India
| | - Dinesh Mani Tripathi
- Department of Molecular and Cellular Medicine, Institute of Liver and Biliary Sciences, Delhi, India
| | - Hamed Hemati
- Department of Molecular and Cellular Medicine, Institute of Liver and Biliary Sciences, Delhi, India
| | - Jitendra Kumar
- Department of Molecular and Cellular Medicine, Institute of Liver and Biliary Sciences, Delhi, India
| | - Purnima Tyagi
- Department of Molecular and Cellular Medicine, Institute of Liver and Biliary Sciences, Delhi, India
| | - Shiv Kumar Sarin
- Department of Hepatology, Institute of Liver and Biliary Sciences, Delhi, India
| | - Vikrant Nain
- School of Biotechnology, Gautam Buddha University, Greater Noida, India
| | - Savneet Kaur
- Department of Molecular and Cellular Medicine, Institute of Liver and Biliary Sciences, Delhi, India
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Orel VB, Papazoglou ΑS, Tsagkaris C, Moysidis DV, Papadakos S, Galkin OY, Orel VE, Syvak LA. Nanotherapy based on magneto-mechanochemical modulation of tumor redox state. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2023; 15:e1868. [PMID: 36289050 DOI: 10.1002/wnan.1868] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 09/25/2022] [Accepted: 10/10/2022] [Indexed: 05/13/2023]
Abstract
Magnetic nanoparticles (MNs) are typically used as contrast agents for magnetic resonance imaging or as drug carriers with a remotely controlled delivery to the tumor. However, they can also potentiate the action of anticancer drugs under the influence of applied constant magnetic (CMFs) and electromagnetic fields (EMFs). This review demonstrates the role of magneto-mechanochemical effects produced by MNs alone and loaded with anticancer agents (MNCs) in response to CMFs and EMFs for modulation of tumor redox state. The combined treatment is suggested to act by two mechanisms: spin-dependent electron transport propagates free radical chain reactions, while magnetomechanical interactions cause conformational changes in drug molecules loaded onto MNs and generate reactive oxygen species (ROS). By adjusting the parameters of CMFs and EMFs during the magneto-mechanochemical synthesis and subsequent treatment, it is possible to modulate ROS production and switch redox signaling involved in ERK1/2 and NF-κB pathways from initiation of tumor growth to inhibition. Observations of tumor volume in different animal models and treatment combinations reported a 6%-70% reduction as compared with conventional drugs. Despite these results, there is a general lack of research in magnetic nanotheranostics that link redox changes across multiple levels of organization in the tumor-bearing host. Further multidisciplinary studies with more focus on the relationship between the electron transport processes in biomolecules and their effects on the tumor-host interaction should accelerate the clinical translation of magnetic nanotheranostics. This article is categorized under: Therapeutic Approaches and Drug Discovery > Nanomedicine for Oncologic Disease Therapeutic Approaches and Drug Discovery > Emerging Technologies Nanotechnology Approaches to Biology > Nanoscale Systems in Biology.
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Affiliation(s)
- Valerii B Orel
- National Cancer Institute, Kyiv, Ukraine
- Faculty of Biomedical Engineering, National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Kyiv, Ukraine
| | | | - Christos Tsagkaris
- Novel Global Community Educational Foundation, Hebersham, New South Wales, Australia
| | - Dimitrios V Moysidis
- Department of Cardiology, Hippokration General Hospital of Thessaloniki, Thessaloniki, Greece
| | | | - Olexander Yu Galkin
- Faculty of Biomedical Engineering, National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Kyiv, Ukraine
| | - Valerii E Orel
- National Cancer Institute, Kyiv, Ukraine
- Faculty of Biomedical Engineering, National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Kyiv, Ukraine
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Du M, Li Y, Zhang Q, Zhang J, Ouyang S, Chen Z. The impact of low intensity ultrasound on cells: Underlying mechanisms and current status. PROGRESS IN BIOPHYSICS AND MOLECULAR BIOLOGY 2022; 174:41-49. [PMID: 35764177 DOI: 10.1016/j.pbiomolbio.2022.06.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Revised: 06/10/2022] [Accepted: 06/23/2022] [Indexed: 06/15/2023]
Abstract
Low intensity ultrasound (LIUS) has been adopted for a variety of therapeutic purposes because of its bioeffects such as thermal, mechanical, and cavitation effects. The mechanism of impact and cellular responses of LIUS in cellular regulations have been revealed, which helps to understand the role of LIUS in tumor treatment, stem cell therapy, and nervous system regulation. The review summarizes the bioeffects of LIUS at the cellular level and its related mechanisms, detailing the corresponding theoretical basis and latest research in the study of LIUS in the regulation of cells. In the future, the design of specific LIUS-mediated treatment strategies may benefit from promising investigations which is hoped to provide encouraging therapeutic data.
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Affiliation(s)
- Meng Du
- The First Affiliated Hospital, Medical Imaging Centre, Hengyang Medical School, University of South China, Hengyang, Hunan, China; Institute of Medical Imaging, Hengyang Medical School, University of South China, Hengyang, China
| | - Yue Li
- The First Affiliated Hospital, Medical Imaging Centre, Hengyang Medical School, University of South China, Hengyang, Hunan, China; Institute of Medical Imaging, Hengyang Medical School, University of South China, Hengyang, China; Laboratory of Ultrasound Molecular Imaging, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Qing Zhang
- Institute of Medical Imaging, Hengyang Medical School, University of South China, Hengyang, China; The Seventh Affiliated Hospital, Hunan Veterans Administration Hospital, Hengyang Medical School, University of South China, Changsha, Hunan, China
| | - Jiaming Zhang
- The First Affiliated Hospital, Center for Reproductive Medicine, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Shuming Ouyang
- The First Affiliated Hospital, Center for Reproductive Medicine, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Zhiyi Chen
- The First Affiliated Hospital, Medical Imaging Centre, Hengyang Medical School, University of South China, Hengyang, Hunan, China; Institute of Medical Imaging, Hengyang Medical School, University of South China, Hengyang, China; The Seventh Affiliated Hospital, Hunan Veterans Administration Hospital, Hengyang Medical School, University of South China, Changsha, Hunan, China.
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Rawal P, Tripathi D, Nain V, Kaur S. VEGF‑mediated tumour growth and EMT in 2D and 3D cell culture models of hepatocellular carcinoma. Oncol Lett 2022; 24:315. [PMID: 35949600 PMCID: PMC9353766 DOI: 10.3892/ol.2022.13435] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 05/31/2022] [Indexed: 11/06/2022] Open
Abstract
The purpose of the present study was to evaluate the effects of vascular endothelial growth factor (VEGF) on tumorigenic properties in two-dimensional (2D) and three-dimensional (3D) cultures of hepatoma cells. The proliferation and invasion of hepatoma cells was assessed using wound healing, chemotaxis Transwell, invasion, tube-forming and hanging drop assays in both 2D and 3D cultures. The expression levels of epithelial-mesenchymal transition (EMT) and stemness markers were analysed using reverse transcription-quantitative PCR (RT-qPCR) for mRNA expression and immunofluorescence assay for protein expression. To validate the role of VEGF in tumour growth, a VEGF receptor (VEGFR) inhibitor (sorafenib) was used. The results demonstrated that the hepatoma cells formed 3D spheroids that differed in size and density in the absence and presence of the growth factor, VEGF. In all spheroids, invasion and angiogenesis were more aggressive in 3D cultures in comparison to 2D conditions following treatment with VEGF. Mechanistically, the VEGF-mediated increase in the levels of EMT markers, including Vimentin, N-cadherin 2 (Cadherin 2) and Thy-1 Cell Surface Antigen was observed in the 2D and 3D cultures. Sorafenib treatment for 24 h culminated in a marked reduction in cell migration, cell-cell adhesion, spheroid compaction and EMT gene expression in 3D models as compared to the 2D models. On the whole, the findings of the present study suggested that as compared to the 2D cell cultures, 3D cell cultures model may be used as a more realistic model for the study of tumour growth and invasion in the presence of angiogenic factors, as well as for tumour inhibitor screening.
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Affiliation(s)
- Preety Rawal
- School of Biotechnology, Gautam Buddha University, Greater Noida, Uttar Pradesh 201312, India
| | - Dinesh Tripathi
- Department of Molecular and Cellular Medicine, Institute of Liver and Biliary Sciences, New Delhi, Delhi 110070, India
| | - Vikrant Nain
- School of Biotechnology, Gautam Buddha University, Greater Noida, Uttar Pradesh 201312, India
| | - Savneet Kaur
- Department of Molecular and Cellular Medicine, Institute of Liver and Biliary Sciences, New Delhi, Delhi 110070, India
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Pre-Exposure to Stress-Inducing Agents Increase the Anticancer Efficacy of Focused Ultrasound against Aggressive Prostate Cancer Cells. Antioxidants (Basel) 2022; 11:antiox11020341. [PMID: 35204223 PMCID: PMC8868501 DOI: 10.3390/antiox11020341] [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: 11/30/2021] [Revised: 01/24/2022] [Accepted: 01/28/2022] [Indexed: 02/01/2023] Open
Abstract
Despite the initial success in treatment of localized prostate cancer (PCa) using surgery, radiation or hormonal therapy, recurrence of aggressive tumors dictates morbidity and mortality. Focused ultrasound (FUS) is being tested as a targeted, noninvasive approach to eliminate the localized PCa foci, and strategies to enhance the anticancer potential of FUS have a high translational value. Since aggressive cancer cells utilize oxidative stress (Ox-stress) and endoplasmic reticulum stress (ER-stress) pathways for their survival and recurrence, we hypothesized that pre-treatment with drugs that disrupt stress-signaling pathways in tumor cells may increase FUS efficacy. Using four different PCa cell lines, i.e., LNCaP, C4-2B, 22Rv1 and DU145, we tested the in vitro effects of FUS, alone and in combination with two clinically tested drugs that increase Ox-stress (i.e., CDDO-me) or ER-stress (i.e., nelfinavir). As compared to standalone FUS, significant (p < 0.05) suppressions in both survival and recurrence of PCa cells were observed following pre-sensitization with low-dose CDDO-me (100 nM) and/or nelfinavir (2 µM). In drug pre-sensitized cells, significant anticancer effects were evident at a FUS intensity of as low as 0.7 kW/cm2. This combined mechanochemical disruption (MCD) approach decreased cell proliferation, migration and clonogenic ability and increased apoptosis/necrosis and reactive oxygen species (ROS) production. Furthermore, although activated in cells that survived standalone FUS, pre-sensitization with CDDO-me and/or nelfinavir suppressed both total and activated (phosphorylated) NF-κB and Akt protein levels. Thus, a combined MCD therapy may be a safe and effective approach towards the targeted elimination of aggressive PCa cells.
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Chen Z, Liu W, Qin Z, Liang X, Tian G. Geniposide exhibits anticancer activity to medulloblastoma cells by downregulating microRNA-373. J Biochem Mol Toxicol 2020; 34:e22471. [PMID: 32057176 DOI: 10.1002/jbt.22471] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 12/30/2019] [Accepted: 01/31/2020] [Indexed: 12/28/2022]
Abstract
BACKGROUND Medulloblastoma is a common tumor originates from central nervous system in children with metastatic potential. Geniposide is the major active ingredient separated from the fruit of Gardenia jasminoides Ellis. Herein, we tested the possible anticancer activity of geniposide on human medulloblastoma cells, as well as the potential underlying molecular mechanisms. METHODS Firstly, followed by geniposide incubation, cell viability, proliferation, apoptosis, migration, and invasion of medulloblastoma Daoy cells, along with microRNA-373 (miR-373) expression were tested, respectively. Then, the influences of miR-373 overexpression in the reduction of medulloblastoma cell proliferation, migration, and invasion and the elevation of apoptosis, triggered by geniposide treatment, were re-investigated. Finally, the Ras/Raf/MEK/ERK pathway activity was analyzed. RESULTS Geniposide treatment inhibited medulloblastoma cell viability, proliferation, migration, and invasion, but promoted cell apoptosis. Surprisingly, miR-373 expression in medulloblastoma cells was obviously downregulated by geniposide treatment. miR-373 overexpression reversed the effects of geniposide on Daoy cells. Furthermore, geniposide hindered the Ras/Raf/MEK/ERK pathway by downregulating miR-373 expression. CONCLUSION Geniposide exhibited anticancer activity on human medulloblastoma cells and blocked Ras/Raf/MEK/ERK pathway by downregulating miR-373 expression.
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Affiliation(s)
- Zhuo Chen
- Department of Neurosurgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Weiming Liu
- Department of Neurosurgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Zhigang Qin
- Department of Neurosurgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Xiaoting Liang
- Department of Neurology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Gengren Tian
- Department of Neurosurgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
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