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Role and mechanism of action of LRIG1 in ovarian cancer cell line and VP16 drug-resistant cell line

  • Authors:
    • Yaqi Zhang
    • Zhizhen Liu
    • Shunrui Yu
  • View Affiliations / Copyright

    Affiliations: Department of Gynecology, Yidu Central Hospital of Weifang, Weifang, Shandong 262500, P.R. China
    Copyright: © Zhang et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Pages: 4619-4624
    |
    Published online on: August 7, 2017
       https://doi.org/10.3892/ol.2017.6730
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Abstract

We investigated the role of leucine-rich repeats and immunoglobulin-like domains (LRIG)-1 in ovarian cancer cell line and VP16 drug-resistant cell line to explore the possible mechanism of action. Human ovarian cancer cell line SKOV3 and the VP16 drug-resistant cell line SKOV3/VP16 were used to investigate whether LRIG1 affects the sensitivity of SKOV3 to drugs. RT-qPCR was used to detect the difference in LRIG1 expression between drug-resistant and wild-type cell lines. siRNA LRIG1 was designed and transfected to silence LRIG1 to investigate the mechanism by which LRIG1 affects the sensitivity of SKOV3 to drugs. Wild-type cells were transfected with SKOV3. The cells were divided into 3 groups (VP16, NC + VP16 and siRNA LRIG1 + VP16 treatment group). VP16 (IC50 value) was added 24 h after transfection. The CCK-8 method was used to detect the proliferation of each group at multiple time points (0, 24, 48 and 72 h). A colony‑forming assay was used to detect cell proliferation and flow cytometry was used to detect cell apoptosis. The expression of LRIG1 was lower in the drug resistant cell line than that of the wild-type cell line. The expression of LRIG1 significantly decreased with the increase of VP16 concentration (P<0.05). The apoptotic rate was decreased but there was an increase on cell clones in the siLRIG1 + VP16‑treated group as compared to VP16- and NC+ VP16-treated groups (P<0.05). The LRIG1 gene affects the sensitivity of SKOV3 cells to drug in a dose-related manner, indicating that the reduced expression of LRIG1 can inhibit cell apoptosis.
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Copy and paste a formatted citation
Spandidos Publications style
Zhang Y, Liu Z and Yu S: Role and mechanism of action of LRIG1 in ovarian cancer cell line and VP16 drug-resistant cell line. Oncol Lett 14: 4619-4624, 2017.
APA
Zhang, Y., Liu, Z., & Yu, S. (2017). Role and mechanism of action of LRIG1 in ovarian cancer cell line and VP16 drug-resistant cell line. Oncology Letters, 14, 4619-4624. https://doi.org/10.3892/ol.2017.6730
MLA
Zhang, Y., Liu, Z., Yu, S."Role and mechanism of action of LRIG1 in ovarian cancer cell line and VP16 drug-resistant cell line". Oncology Letters 14.4 (2017): 4619-4624.
Chicago
Zhang, Y., Liu, Z., Yu, S."Role and mechanism of action of LRIG1 in ovarian cancer cell line and VP16 drug-resistant cell line". Oncology Letters 14, no. 4 (2017): 4619-4624. https://doi.org/10.3892/ol.2017.6730
Copy and paste a formatted citation
x
Spandidos Publications style
Zhang Y, Liu Z and Yu S: Role and mechanism of action of LRIG1 in ovarian cancer cell line and VP16 drug-resistant cell line. Oncol Lett 14: 4619-4624, 2017.
APA
Zhang, Y., Liu, Z., & Yu, S. (2017). Role and mechanism of action of LRIG1 in ovarian cancer cell line and VP16 drug-resistant cell line. Oncology Letters, 14, 4619-4624. https://doi.org/10.3892/ol.2017.6730
MLA
Zhang, Y., Liu, Z., Yu, S."Role and mechanism of action of LRIG1 in ovarian cancer cell line and VP16 drug-resistant cell line". Oncology Letters 14.4 (2017): 4619-4624.
Chicago
Zhang, Y., Liu, Z., Yu, S."Role and mechanism of action of LRIG1 in ovarian cancer cell line and VP16 drug-resistant cell line". Oncology Letters 14, no. 4 (2017): 4619-4624. https://doi.org/10.3892/ol.2017.6730
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