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Effects of sialidase NEU1 siRNA on proliferation, apoptosis, and invasion in human ovarian cancer

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Abstract

Ovarian cancer is one of the most common malignancies encountered in the world. In ovarian cancer tissues of patients, NEU1 was expressed in a higher level than that in adjacent normal tissues. In this research, we aimed to elucidate the role of NEU1 siRNA on proliferation, apoptosis, and invasion of OVCAR3 and SKOV3 cells which expressed NEU1 notably. By cell viability assay and flow cytometry method, we found that NEU1 siRNA effectively inhibited the cancer proliferation, arrested cells cycle at G0/G1 phase, and induced apoptosis when compared to the Mock group. Result of transwell assay showed that invasion of cells in OVCAR3 and SKOV3 treated with NEU1 siRNA were suppressed significantly. Gene set enrichment analysis showed that lysosome and oxidative phosphorylation related signal pathway were associated with the NEU1 expression. In addition, Western blot revealed that expressions of Cln3 and Cln5 were depressed, and ATP5B and ATP5J expressions were also reduced. In conclusion, NEU1 siRNA can effectively inhibit proliferation, apoptosis, and invasion of human ovarian cancer cells by targeting lysosome and oxidative phosphorylation signaling, which can serve as a new target ovarian cancer treatment.

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Acknowledgments

This study was supported by the National Science Foundation of China (No. 81460394, 81060217) and the Education Program Foundation of Jiangxi Province (No. GJJ14034).

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Authors and Affiliations

  1. Department of Obstetrics and Gynaecology, Shenzhen Baoan Maternal and Child Health Hospital, Shenzhen, Guangdong, 518133, People’s Republic of China

    Li-rong Ren, Li-ping Zhang & Yuan-fang Zhu

  2. Department of Obstetrics and Gynaecology, The First Affiliated Hospital of Nanchang University, 17 Yongwaizheng Street, Nanchang, Jiangxi, 330006, People’s Republic of China

    Shu-ying Huang, Yuan-fang Zhu, Wen-juan Li, Shan-yu Fang, Li Shen & Yan-ling Gao

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  1. Li-rong Ren
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  2. Li-ping Zhang
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  3. Shu-ying Huang
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  5. Wen-juan Li
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  6. Shan-yu Fang
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Correspondence to Yuan-fang Zhu.

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Li-rong Ren and Li-ping Zhang are co-first authors.

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Ren, Lr., Zhang, Lp., Huang, Sy. et al. Effects of sialidase NEU1 siRNA on proliferation, apoptosis, and invasion in human ovarian cancer. Mol Cell Biochem 411, 213–219 (2016). https://doi.org/10.1007/s11010-015-2583-z

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  • DOI: https://doi.org/10.1007/s11010-015-2583-z

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