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2013 ; 7 Suppl 6
(Suppl 6
): S10
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CGPredictor: a systematic integrated analytic tool for mining and examining
genome-scale cancer independent prognostic epigenetic marker panels
#MMPMID24565108
Cheng WS
; Chiang JH
BMC Syst Biol
2013[]; 7 Suppl 6
(Suppl 6
): S10
PMID24565108
show ga
BACKGROUND: Tumor biomarkers are potentially useful in several ways such as the
identification of individuals at increased risk of developing cancer, in
screening for early malignancies and in aiding cancer diagnoses; tumor biomarkers
may also be used for determining prognosis, predicting therapeutic response,
patient tracking following curative surgery for cancer and for monitoring
therapy. Epigenetic alterations, especially aberrant DNA methylation, are
recognized as common molecular alterations in a variety of tumors and also occur
during the development of tumors. The Cancer Grade Predictor (CGPredictor) is an
extendable package with functions designed to facilitate systematic integrated
and rapid analysis of high-throughput methylation through the use of most
self-similarity subgroups of patients supported by various validating
examinations with regarded to survival outcome to obtain the identity of the
target predictor. RESULTS: We used high-grade serous ovarian cancer (HGSOC) and
invasive breast carcinoma (BRCA) to demonstrate the usefulness of the CGPredictor
package. The clustering results and the identity predictors worked well and
efficiently in producing significant results after various tests were used to
validate the usefulness of CGPredictor package. Also, some of the markers for
either the HGSOC or BRCA marker panel have been previously reported to reveal
significant results. Even when performed using a different platform with an
independent large population BRCA dataset for validation, the identity predictor
provided an accurate assessment of patient conditions and produced significant
results. CONCLUSIONS: CGPredictor package is not a customized analysis tool
designed specifically for the identification of only one or a few specific types
of cancer but can be applied more broadly; moreover, the results indicate that
the extracted predictors may worthy of consideration for further clinical testing
to identify their potential usefulness for clinical molecular diagnosis and
targeted treatments of patients with HGSOC and BRCA. So, the use of CGPredictor
is feasible for examining the statistical significance of specific markers of
interest and shows great potential for use with other types of cancers for cancer
biomarker mining.