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Han YH, Zhang YQ, Jin MH, Jin YH, Qiu MY, Li WL, He C, Yu LY, Hyun JW, Lee J, Yoon DY, Sun HN, Kwon T. Peroxiredoxin I deficiency increases keratinocyte apoptosis in a skin tumor model via the ROS-p38 MAPK pathway. Biochem Biophys Res Commun 2020; 529:635-641. [PMID: 32736685 DOI: 10.1016/j.bbrc.2020.06.047] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 06/10/2020] [Indexed: 02/07/2023]
Abstract
Keratinocyte hyperproliferation is an essential link in skin cancer pathogenesis. Peroxiredoxin I (Prx I) is known to regulate cancer cell proliferation, differentiation, and apoptosis, but its role in skin cancer remains unclear. This study aimed to elucidate the role and mechanism of Prx I in skin cancer pathogenesis. Dimethylbenz[a]anthracene (DMBA) and 12-O-tetradecanoyl-phorbol-13-acetate (TPA) were used to create a skin tumor model of the initiation/promotion stage of cancer. The role of Prx I in H2O2-induced keratinocyte apoptosis was also investigated. After DMBA/TPA treatment, Prx I deficiency was significantly associated with less skin tumors, lower Bcl-2 expression, and higher p-p38 and cleaved caspase-3 expressions in Prx I knockout tumors than in wild-type controls. H2O2 stimulation caused more cellular apoptosis in Prx I knockdown HaCaT cells than in normal HaCaT cells. The signaling study revealed that Bcl-2, p-p38, and cleaved caspase-3 expressions were consistent with the results in the tumors. In conclusion, the deletion of Prx I triggered the DMBA/TPA-induced skin tumor formation in vivo and in vitro by regulating the reactive oxygen species (ROS)-p38 mitogen-activated protein kinase (MAPK) pathway. These findings provide a theoretical basis for treating skin cancer.
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Affiliation(s)
- Ying-Hao Han
- College of Life Science & Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, 163319, China.
| | - Yong-Qing Zhang
- College of Life Science & Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, 163319, China
| | - Mei-Hua Jin
- College of Life Science & Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, 163319, China
| | - Ying-Hua Jin
- Library and Information Center, Heilongjiang Bayi Agricultural University, Daqing, 163319, China
| | - Mei-Yu Qiu
- College of Life Science & Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, 163319, China
| | - Wei-Long Li
- College of Life Science & Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, 163319, China
| | - Chao He
- College of Life Science & Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, 163319, China
| | - Li-Yun Yu
- College of Life Science & Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, 163319, China
| | - Jin Won Hyun
- Department of Biochemistry, School of Medicine, Jeju National University, Jeju, 63243, Republic of Korea
| | - Jiyon Lee
- Department of Bioscience and Biotechnology, Research Institute of Bioactive-Metabolome Network, Konkuk University, Seoul, 05029, Republic of Korea; Primate Resources Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Jeonbuk, 56216, Republic of Korea
| | - Do-Young Yoon
- Department of Bioscience and Biotechnology, Research Institute of Bioactive-Metabolome Network, Konkuk University, Seoul, 05029, Republic of Korea
| | - Hu-Nan Sun
- College of Life Science & Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, 163319, China.
| | - Taeho Kwon
- Primate Resources Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Jeonbuk, 56216, Republic of Korea.
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Li Y, Qiu MY, Wu CQ, Cao YQ, Tang R, Chen Q, Shi XY, Hu ZQ, Xie Y, Mao YM. [Detection of differentially expressed genes in hepatocellular carcinoma using DNA microarray]. Yi Chuan Xue Bao 2001; 27:1042-8. [PMID: 11209696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
Large scale gene expression profiles between normal hepatocytes and hepatocellular carcinomas are detected with high throughput microarray. DNA microarrays were made by spotting PCR products of 4,096 human cDNAs onto a specially treated glass slides. The probes were prepared by labelling normal tissue mRNA and cancer tissue mRNA with Cy3-dUTP and Cy5-dUTP separately through reverse transcription. The arrays were then hybridized against the cDNA probe mixture and the fluorescent signals were scanned. The obtained data were analyzed from 4 repeated experiments. There are 903 genes of which the average ratios between Cy3 signal and Cy5 signal are greater than 3.0. These genes identified through this approach are potential candidates for hepatocellular carcinoma diagnosis and therapy.
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Affiliation(s)
- Y Li
- State Key Laboratory of Genetic Engineering, Institute of Genetics, School of Life Science, Fudan University, Shanghai, 200433 China
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