. "\"Any process that stops, prevents, or reduces the frequency, rate or extent of polarized epithelial cell differentiation.\" [GOC:mah]" . . "negative regulation of polarized epithelial cell differentiation" . "down regulation of polarized epithelial cell differentiation" . "down-regulation of polarized epithelial cell differentiation" . "downregulation of polarized epithelial cell differentiation" . . . "inhibition of polarized epithelial cell differentiation" .