SPMSP: a solid-phase PCR with colorimetric read-out for quantitative methylation analysis.

Background: As DNA methylation has been determined as an important diagnostic biomarker in cancer management, methods for the detection of quantitative DNA methylation which are high-throughput and low-cost are needed.

Materials And Methods: In this work, we introduce the solid-phase methylation-specific PCR (SPMSP) as a method for quantitative methylation analysis. SPMSP combines methylation-specific DNA amplification on a solid phase with subsequent colorimetric detection in an ELISA-based format.

Hypermethylation of the APC promoter but lack of APC mutations in myxoid/round-cell liposarcoma.

The adenomatous polyposis coli (APC) protein is a key component of the WNT signalling pathway wherein it acts as a scaffolding protein in controlling the level of the proto-oncoprotein beta-catenin. Although APC has been shown to be genetically or epigenetically inactivated in a variety of carcinomas, little is known about its role in sarcoma. Liposarcomas (LPSs) are the second most common soft tissue sarcoma in adults.