Please use this identifier to cite or link to this item: https://doi.org/10.1038/sj.onc.1209836
Title: Silencing expression of UO-44 (CUZD1) using small interfering RNA sensitizes human ovarian cancer cells to cisplatin in vitro
Authors: Leong, C.T.C.
Ong, C.K.
Tay, S.K.
Huynh, H. 
Keywords: Cisplatin
CUB
HuUO-44
RNAi and ovarian cancer
Zona pellucida
Issue Date: 8-Feb-2007
Citation: Leong, C.T.C., Ong, C.K., Tay, S.K., Huynh, H. (2007-02-08). Silencing expression of UO-44 (CUZD1) using small interfering RNA sensitizes human ovarian cancer cells to cisplatin in vitro. Oncogene 26 (6) : 870-880. ScholarBank@NUS Repository. https://doi.org/10.1038/sj.onc.1209836
Abstract: Ovarian cancer is currently the second leading cause of gynecological malignancy and cisplatin or cisplatin-based regimens have been the standard of care for the treatment of advance epithelial ovarian cancers. However, the efficacy of cisplatin treatment is often limited by the development of drug resistance either through the inhibition of apoptotic genes or activation of antiapoptotic genes. We have previously reported the overexpression of human UO-44 (HuUO-44) in ovarian cancers and the HuUO-44 antisera markedly inhibited NIH-OVCAR3 ovarian cancer cell attachment and proliferation (Oncogene 23: 5707-5718, 2004). In the present study, we observed through the cancer cell line profiling array that the expression of HuUO-44 was suppressed in the ovarian cancer cell line (SKOV-3) after treatment with several chemotherapeutic drugs. Similarly, this suppression in HuUO-44 expression was also correlated to the cisplatin sensitivity in two other ovarian cancer cell lines NIH-OVCAR3 and OV-90 in a dose-dependent manner. To elucidate the function of HuUO-44 in cisplatin chemoresistance in ovarian cancer cell, small interfering RNAs (siRNAs) were employed to mediate HuUO-44 silencing in ovarian cancer cell line, NIH-OVCAR3. HuUO-44 RNA interference (RNAi) resulted in the inhibition of cell growth and proliferation. Importantly, HuUO-44 RNAi significantly increased sensitivity of NIH-OVCAR3 to cytotoxic stress induced by cisplatin (P
Source Title: Oncogene
URI: http://scholarbank.nus.edu.sg/handle/10635/130603
ISSN: 09509232
DOI: 10.1038/sj.onc.1209836
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