KNDC1 Is a Predictive Marker of Malignant Transformation in Borderline Ovarian Tumors

OncoTargets and Therapy
Shuqian YuJianwei Zhou

Abstract

Few screening markers for malignant transformation in borderline ovarian tumors (BOT) have been clearly established. The kinase noncatalytic C-lobe domain containing 1 (KNDC1), a brain-specific Ras guanine nucleotide exchange factor, negatively regulates dendrite growth. However, the biological role and underlying mechanism of KNDC1 in human cancers, including ovarian cancer (OC), remain unknown. Gene chip screening was used to detect the expression of KNDC1 mRNA in normal ovarian tissues, BOT tissues, and OC tissues. And results were further validated by RT-qPCR, Western blotting and immunohistochemistry. KNDC1 overexpression and knockdown ovarian cancer cells were established to study the possible pathways that KNDC1 was involved. The effects of KNDC1 on the malignant behaviors of ovarian tumors were also investigated both in vitro and in vivo. We observed that the expression of KNDC1 mRNA and KNDC1 protein in OC was significantly downregulated compared with BOT. Subsequent investigation revealed that knockdown of KNDC1 enhanced the proliferation of ovarian cancer cells in vitro via induction of ERK1/2 phosphorylation, whereas reinforcing the expression of KNDC1 attenuated the ERK1/2 activity. Similarly, knockdown of KNDC1 al...Continue Reading

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Methods Mentioned

BETA
chip
electrophoresis
transfection
Assay
gene knockdown
nucleotide exchange

Software Mentioned

ImageJ
SPSS

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