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Xiao Y, Yuan J, Yang C, Xiong J, Deng L, Liang Q, He C, Li L, He F, Huang X. 125I Radioactive Particles Drive Protective Autophagy in Hepatocellular Carcinoma by Upregulating ATG9B. J Clin Transl Hepatol 2023; 11:360-368. [PMID: 36643035 PMCID: PMC9817064 DOI: 10.14218/jcth.2022.00023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 04/27/2022] [Accepted: 05/10/2022] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND AND AIMS 125I radioactive particles implantation have demonstrated efficacy in eradicating hepatocellular carcinoma (HCC). However, progressive resistance of HCC to 125I radioactive particles has limited its wide clinical application. METHODS We investigated the cellular responses to 125I radioactive particles treatment and autophagy-related 9B (ATG9B) silencing in HCC cell lines and Hep3B xenografted tumor model using Cell Counting Kit-8 reagent, western blotting, immunofluorescence, flow cytometry, transmission electron microscopy and immunohistochemistry. RESULTS In this study, we demonstrated that 125I radioactive particles induced cell apoptosis and protective autophagy of HCC in vitro and in vivo. Inhibition of autophagy enhanced the radiosensitivity of HCC to 125I radioactive particles. Moreover, 125I radioactive particles induced autophagy by upregulating ATG9B, with increased expression level of LC3B and decreased expression level of p62. Furthermore, ATG9B silencing downregulated LC3B expression and upregulated p62 expression and enhanced radiosensitivity of HCC to 125I radioactive particles in vitro and in vivo. CONCLUSIONS Inhibition of ATG9B enhanced the antitumor effects of 125I particle radiation against HCC in vitro and in vivo. Our findings suggest that 125I particle radiation plus chloroquine or/and the ATG9B inhibitor may be a novel therapeutic strategy for HCC.
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Affiliation(s)
- Yunhua Xiao
- Department of Nuclear Medicine, the First Affiliated Hospital of Army Medical University, Army Medical University, Chongqing, China
| | - Jing Yuan
- Department of Radiology, Army Medical Center, Chongqing, China
| | - Chongshuang Yang
- Department of Nuclear Medicine, the First Affiliated Hospital of Army Medical University, Army Medical University, Chongqing, China
| | - Junru Xiong
- Department of Nuclear Medicine, the First Affiliated Hospital of Army Medical University, Army Medical University, Chongqing, China
| | - Liangyu Deng
- Department of Nuclear Medicine, the First Affiliated Hospital of Army Medical University, Army Medical University, Chongqing, China
| | - Qinghua Liang
- Department of Nuclear Medicine, the First Affiliated Hospital of Army Medical University, Army Medical University, Chongqing, China
| | - Chuang He
- Department of Nuclear Medicine, the First Affiliated Hospital of Army Medical University, Army Medical University, Chongqing, China
| | - Liangshan Li
- Department of Nuclear Medicine, the First Affiliated Hospital of Army Medical University, Army Medical University, Chongqing, China
| | - Fengtian He
- Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Army Medical University, Chongqing, China
- Correspondence to: Fengtian He, Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Army Medical University, No. 30 Gaotanyan, Shapingba, Chongqing 400038, China. ORCID: https://orcid.org/0000-0002-1689-6281. Tel: +86-23-68771348, Fax: +86-23-68752262, E-mail: mailto:; Xuequan Huang, Department of Nuclear Medicine, the First Affiliated Hospital of Army Medical University, Army Medical University, No.30 Gaotanyan, Shapingba, Chongqing 400038, China. ORCID: https://orcid.org/0000-0002-0807-5563. Tel: +86-13629774403, Fax: +86-23-68765018, E-mail:
| | - Xuequan Huang
- Department of Nuclear Medicine, the First Affiliated Hospital of Army Medical University, Army Medical University, Chongqing, China
- Correspondence to: Fengtian He, Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Army Medical University, No. 30 Gaotanyan, Shapingba, Chongqing 400038, China. ORCID: https://orcid.org/0000-0002-1689-6281. Tel: +86-23-68771348, Fax: +86-23-68752262, E-mail: mailto:; Xuequan Huang, Department of Nuclear Medicine, the First Affiliated Hospital of Army Medical University, Army Medical University, No.30 Gaotanyan, Shapingba, Chongqing 400038, China. ORCID: https://orcid.org/0000-0002-0807-5563. Tel: +86-13629774403, Fax: +86-23-68765018, E-mail:
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Russ E, Davis CM, Slaven JE, Bradfield DT, Selwyn RG, Day RM. Comparison of the Medical Uses and Cellular Effects of High and Low Linear Energy Transfer Radiation. TOXICS 2022; 10:toxics10100628. [PMID: 36287908 PMCID: PMC9609561 DOI: 10.3390/toxics10100628] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 10/13/2022] [Accepted: 10/14/2022] [Indexed: 05/14/2023]
Abstract
Exposure to ionizing radiation can occur during medical treatments, from naturally occurring sources in the environment, or as the result of a nuclear accident or thermonuclear war. The severity of cellular damage from ionizing radiation exposure is dependent upon a number of factors including the absorbed radiation dose of the exposure (energy absorbed per unit mass of the exposure), dose rate, area and volume of tissue exposed, type of radiation (e.g., X-rays, high-energy gamma rays, protons, or neutrons) and linear energy transfer. While the dose, the dose rate, and dose distribution in tissue are aspects of a radiation exposure that can be varied experimentally or in medical treatments, the LET and eV are inherent characteristics of the type of radiation. High-LET radiation deposits a higher concentration of energy in a shorter distance when traversing tissue compared with low-LET radiation. The different biological effects of high and low LET with similar energies have been documented in vivo in animal models and in cultured cells. High-LET results in intense macromolecular damage and more cell death. Findings indicate that while both low- and high-LET radiation activate non-homologous end-joining DNA repair activity, efficient repair of high-LET radiation requires the homologous recombination repair pathway. Low- and high-LET radiation activate p53 transcription factor activity in most cells, but high LET activates NF-kB transcription factor at lower radiation doses than low-LET radiation. Here we review the development, uses, and current understanding of the cellular effects of low- and high-LET radiation exposure.
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Affiliation(s)
- Eric Russ
- Graduate Program of Cellular and Molecular Biology, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
| | - Catherine M. Davis
- Department of Pharmacology and Molecular Therapeutics, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
| | - John E. Slaven
- Department of Pharmacology and Molecular Therapeutics, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
| | - Dmitry T. Bradfield
- Department of Pharmacology and Molecular Therapeutics, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
| | - Reed G. Selwyn
- Department of Radiology, University of New Mexico, Albuquerque, NM 87131, USA
| | - Regina M. Day
- Department of Pharmacology and Molecular Therapeutics, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
- Correspondence:
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Iodine-125 Seeds Inhibit Carcinogenesis of Hepatocellular Carcinoma Cells by Suppressing Epithelial-Mesenchymal Transition via TGF-β1/Smad Signaling. DISEASE MARKERS 2022; 2022:9230647. [PMID: 35578690 PMCID: PMC9107354 DOI: 10.1155/2022/9230647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Accepted: 04/11/2022] [Indexed: 11/17/2022]
Abstract
To investigate the radioactive iodine-125 (I-125) seed on migrating and invading of hepatocellular carcinoma (HCC) cells and its mechanism, the irradiation of PLC and Huh7 cells was carried out with I-125 seeds in vitro. Cell counting kit 8 assay was employed to measure cell viability. Cell migration was evaluated by using wound-healing assay. Cell invasion was detected by Transwell assay; RT-PCR and Western blot were used for the detection of the mRNA and proteins of TGF-β1 signaling pathway-related genes. The viability of PLC and Huh7 cells declined in a dose-dependent manner with increasing irradiation from 0 Gy, 2 Gy, 4 Gy, and 6 Gy, to 8 Gy, respectively. The IC50 of PLC and Huh7 cells were 6.20 Gy and 5.39 Gy, respectively, after 24 h of irradiation. Migration and invasion abilities of I-125 group cells were greatly weakened (P < 0.05) comparing with the control group. According to the outcomes of RT-PCR and WB, I-125 seed irradiation significantly inhibited the mRNA and protein expression of N-cadherin, vimentin, TGF-β1, p-Smad2/3, and Snail. But the mRNA and protein expressions of E-cadherin were enhanced. Rescue experiment demonstrates that TGF-β1 activator could reverse the inhibitory effects of I-125 on invasion and migration of cells. The results of in vivo experiments further verified that the I-125 seeds can inhibit the proliferation and TGF-β1 of xenographed PLC cells. In conclusion, I-125 seeds restrain the invasion and migration of HCC cells by suppressing epithelial to mesenchymal transition, which may associate with the inhibition of the TGF-β1 signaling.
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Ou D, Wu Y, Zhang J, Liu J, Liu Z, Shao M, Guo X, Cui S. miR-340-5p affects oral squamous cell carcinoma (OSCC) cells proliferation and invasion by targeting endoplasmic reticulum stress proteins. Eur J Pharmacol 2022; 920:174820. [DOI: 10.1016/j.ejphar.2022.174820] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 01/29/2022] [Accepted: 02/09/2022] [Indexed: 12/15/2022]
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