The 9-gene C35/claudin-low signature is down-regulated in a subset of human breast cell lines.

<p>Eight cell lines exhibit low expression of <i>CDH1</i>, <i>CLDN7</i>, <i>CRB3</i>, <i>KRT8</i>, <i>TACSTD1</i>, <i>IRF6</i>, <i>SPINT2</i> and <i>MAL2</i> when cultured on plastic. <i>MARVELD3</i> could not be assessed due to particularly low levels of expression. Technical triplicate mRNA expression data is shown for each line. HMEC cDNA is shown for comparison.</p>