Molecular detection of B-cell neoplasms by specific DNA methylation biomarkers

  • Michael X. Wang
  • , Huan You Wang
  • , Xiaohui Zhao
  • , Nalluri Srilatha
  • , Dali Zheng
  • , Huidong Shi
  • , Jie Ning
  • , Deiter J. Duff
  • , Kristen H. Taylor
  • , Barbara A. Gruner
  • , Charles W. Caldwell

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

A novel, easy to perform PCR-based method employing specific DNA methylation biomarkers to detect Bcell neoplasms in a variety of B-cell lines and B lymphoblastic leukemia (B-ALL) patient specimens has been developed. This method detects as few as 5 B-ALL cells, or 1 B-ALL cell in 1,000,000 normal background blood cells using a single marker, DLC-1 gene CpG island (CGI) methylation. By adding two additional markers PCDHGA12 and RPIB9, over 80% of B-ALL cases were detected in patients' bone marrow and/or peripheral blood specimens. We have traced clinical B-ALL cases up to 10 years retrospectively and the DLC-1 methylation is correlated with patient clinical status. Thus, this epigenetic-based molecular method demonstrates its potential use in the diagnosis of B-cell neoplasia, in addition to traditional approach such as clinical features, morphology, immunophenotype, and genetic analysis.

Original languageEnglish (US)
Pages (from-to)265-279
Number of pages15
JournalInternational Journal of Clinical and Experimental Pathology
Volume3
Issue number3
StatePublished - 2010

Keywords

  • B lymphoblastic leukemia
  • DNA methylation biomarker
  • Mature B-cell neoplasms

ASJC Scopus subject areas

  • Pathology and Forensic Medicine
  • Histology

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