Kaiso mainly locates in the nucleus in vivo and binds to methylated, but not hydroxymethylated DNA.

ABSTRACT:

Objective

Kaiso is upregulated in many cancers and proposed to bind with both methylated- and unmethylated-DNA in the nucleus as a transcriptional repressor. The objective is to define its subcellular localization in vivo and exact binding DNA sequences in cells.

Methods

Compartmentalization of exogenous Kaiso in cells was tracked with enhanced green fluorescence protein (EGFP) tag. The endogenous Kaiso expression in gastric carcinoma tissue was examined with immunohistochemical staining. Kaiso-DNA binding was tested using electrophoretic mobility shift assay (EMSA) and chromatin immunoprecipitation assay (ChIP).

Results

Kaiso mainly localized in the nucleus of cancer and stromal cells in vivo, but remained in the cytoplasm of cultured cells. Most importantly, nuclear

SUBMITTER: Qin S 

PROVIDER: S-EPMC4409972 | biostudies-literature | 2015 Apr

REPOSITORIES: biostudies-literature