ArticlePathology oncology research : POR2015
Development of a DUSP9 methylation screening assay.
Article in Pathology oncology research : POR, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- DUSP4 Silencing Enhances the Sensitivity of Breast Cancer Cells to Doxorubicin through the Activation of the JNK/c-Jun Signalling Pathway.Molecules (Basel, Switzerland) · 2022Article
- DUSP9, a Dual-Specificity Phosphatase with a Key Role in Cell Biology and Human Diseases.International journal of molecular sciences · 2021Review
- DUSP9 Suppresses Proliferation and Migration of Clear Cell Renal Cell Carcinoma via the mTOR Pathway.OncoTargets and therapy · 2020Article
- Downregulation of DUSP9 Promotes Tumor Progression and Contributes to Poor Prognosis in Human Colorectal Cancer.Frontiers in oncology · 2020Article
- MKP-4 suppresses hepatocarcinogenesis by targeting ERK1/2 pathway.Cancer cell international · 2019Article
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3 authors.
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Abstract
A methylation screening assay for DUSP9 (dual-specificity phosphatase 9) has been developed and applied on 79 FFPE samples from patients with colorectal cancer (CRC) and 22 corresponding tumor free colon samples in this study. Quantitative pyrosequencing was used for the determination of the methylation in the promoter CpG island, including 83 CpG motifs. In this way, the methylation pattern of the 11 tumor samples with the weakest and the strongest methylation could be identified and were compared to their corresponding tumor free colon samples. Forty six percent of the weakly methylated samples showed no significant difference to their tumor free counterparts, whereas in 27% of the cases an increased or reduced methylation was detectable. For the strongly methylated tumor samples only 18% showed no significant difference to their tumor free counterparts, whereas 82% were significantly stronger methylated. In CRC, the aberrant promoter methylation of tumor suppressor genes is one aspect that defines the CpG island methylator phenoptype (CIMP) and is frequently observed in a subpopulation of cases. Patients harboring a CIMP phenotype often show additional clinicopathological characteristics, the so called CIMP features. Interestingly, no CIMP features were found for the weakly methylated samples analyzed in this study but could be seen in 82% of the strongly methylated cases, indicating a possible use for DUSP9 as CIMP marker.
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