Large-scale profiling of archival lymph nodes reveals pervasive remodeling of the follicular lymphoma methylome.

ABSTRACT: Emerging technologies allow broad profiling of the cancer genome for differential DNA methylation relative to benign cells. Herein, bisulfite-modified DNA from lymph nodes with either reactive hyperplasia or follicular lymphoma (FL) were analyzed using a commercial C/UpG genotyping assay. Two hundred fifty-nine differentially methylated targets (DMT) distributed among 183 unique genes were identified in FL. Comparison of matched formalin-fixed, paraffin-embedded and frozen surgical pathology replicates showed the complete preservation of the cancer methylome among differently archived tissue specimens. Analysis of the DMT profile is consistent with a pervasive epigenomic remodeling process in FL that affects predominantly nonlymphoid genes.

SUBMITTER: Killian JK 

PROVIDER: S-EPMC7213763 | biostudies-literature | 2009 Feb

REPOSITORIES: biostudies-literature