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Mechanism of selective induction of apoptosis of HCT116 tumor cells in circulating blood by riboflavin photochemistry. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B: BIOLOGY 2022; 237:112588. [DOI: 10.1016/j.jphotobiol.2022.112588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 10/14/2022] [Accepted: 10/18/2022] [Indexed: 11/28/2022]
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2
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Ji P, Li Z, Dong J, Yi H. SO 2 derivatives and As co-exposure promote liver cancer metastasis through integrin αvβ3 activation. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 181:572-578. [PMID: 31252212 DOI: 10.1016/j.ecoenv.2019.06.029] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 04/24/2019] [Accepted: 06/11/2019] [Indexed: 06/09/2023]
Abstract
Arsenic (As) and sulfur dioxide (SO2) are two environmental pollutants that have been shown to promote the development of human cancer. In recent years, due to increased pollution, humans are often exposed to SO2, in addition to As. Despite the development and implementation of standards for environment and air quality, cases of disease caused by As or SO2 continue to rise alarmingly. It is currently unknown whether simultaneous exposure to As and SO2 results in increased cancer promoting activity. In this study, concentrations of As and SO2 below the limits established by the world health organization (WHO) in force environmental standards (concentrations of As should be lower than 1×10-2 mg/L and SO2 should be lower than 50 μg/m3), were employed to investigate possible, long-term, synergistic effects of As and SO2, by using cell-based assays. We found that co-exposure to these pollutants significantly promotes HepG2 cancer cell migration, while As or SO2 alone have no remarkable effects. Integrins αvβ3 play a key role in this process, as cilengitide, an integrin αvβ3 inhibitor, substantially prevented As and SO2-induced cell migration. MMPs, IL-8, and TGF-β were also involved in the induced cell migration. In summary, combined exposure to As and SO2 promotes integrin-dependent cell migration and may be of relevance for the activation of mechanisms underlying liver cancer progression.
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Affiliation(s)
- Pengyu Ji
- School of Life Science, Shanxi University, Taiyuan, China; College of Environmental and Resource, Shanxi University, Taiyuan, China
| | - Zhuoyu Li
- School of Life Science, Shanxi University, Taiyuan, China
| | - Jintang Dong
- Emory University Winship Cancer Institute, Atlanta, GA, USA
| | - Huilan Yi
- School of Life Science, Shanxi University, Taiyuan, China.
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Zhang S, Han Y, Zhu X, Shang S, Huang G, Zhang L, Niu G, Wang S, He X, Wan M. Feasibility of Using Ultrasonic Nakagami Imaging for Monitoring Microwave-Induced Thermal Lesion in Ex Vivo Porcine Liver. ULTRASOUND IN MEDICINE & BIOLOGY 2017; 43:482-493. [PMID: 27894833 DOI: 10.1016/j.ultrasmedbio.2016.10.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Revised: 10/05/2016] [Accepted: 10/13/2016] [Indexed: 06/06/2023]
Abstract
The feasibility of using ultrasonic Nakagami imaging to evaluate thermal lesions induced by microwave ablation (MWA) in ex vivo porcine liver was explored. Dynamic changes in echo amplitudes and Nakagami parameters in the region of the MWA-induced thermal lesion, as well as the contrast-to-noise ratio (CNR) between the MWA-induced thermal lesion and the surrounding normal tissue, were calculated simultaneously during the MWA procedure. After MWA exposure, a bright hyper-echoic region appeared in ultrasonic B-mode and Nakagami parameter images as an indicator of the thermal lesion. Mean values of the Nakagami parameter in the thermal lesion region increased to 0.58, 0.71 and 0.91 after 1, 3 and 5 min of MVA. There were no significant differences in envelope amplitudes in the thermal lesion region among ultrasonic B-mode images obtained after different durations of MWA. Unlike ultrasonic B-mode images, Nakagami images were less affected by the shadow effect in monitoring of MWA exposure, and a fairly complete hyper-echoic region was observed in the Nakagami image. The mean value of the Nakagami parameter increased from approximately 0.47 to 0.82 during MWA exposure. At the end of the postablation stage, the mean value of the Nakagami parameter decreased to 0.55 and was higher than that before MWA exposure. CNR values calculated for Nakagami parameter images increased from 0.13 to approximately 0.61 during MWA and then decreased to 0.26 at the end of the post-ablation stage. The corresponding CNR values calculated for ultrasonic B-mode images were 0.24, 0.42 and 0.17. This preliminary study on ex vivo porcine liver suggested that Nakagami imaging have potential use in evaluating the formation of MWA-induced thermal lesions. Further in vivo studies are needed to evaluate the potential application.
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Affiliation(s)
- Siyuan Zhang
- Key Laboratory of Biomedical Information Engineering, Ministry of Education, Department of Biomedical Engineering, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - Yuqiang Han
- Key Laboratory of Biomedical Information Engineering, Ministry of Education, Department of Biomedical Engineering, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - Xingguang Zhu
- Key Laboratory of Biomedical Information Engineering, Ministry of Education, Department of Biomedical Engineering, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - Shaoqiang Shang
- Key Laboratory of Biomedical Information Engineering, Ministry of Education, Department of Biomedical Engineering, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - Guojing Huang
- Key Laboratory of Biomedical Information Engineering, Ministry of Education, Department of Biomedical Engineering, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - Lei Zhang
- Key Laboratory of Biomedical Information Engineering, Ministry of Education, Department of Biomedical Engineering, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - Gang Niu
- Department of Radiology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Supin Wang
- Key Laboratory of Biomedical Information Engineering, Ministry of Education, Department of Biomedical Engineering, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - Xijing He
- Department of Orthopedics, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Mingxi Wan
- Key Laboratory of Biomedical Information Engineering, Ministry of Education, Department of Biomedical Engineering, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, China.
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Gasparri ML, Savone D, Besharat RA, Farooqi AA, Bellati F, Ruscito I, Panici PB, Papadia A. Circulating tumor cells as trigger to hematogenous spreads and potential biomarkers to predict the prognosis in ovarian cancer. Tumour Biol 2015; 37:71-5. [DOI: 10.1007/s13277-015-4299-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Accepted: 10/20/2015] [Indexed: 12/19/2022] Open
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