LRP1B and non-small cell lung carcinoma: To verify that the reduced proliferation observed in NSCLC cells expressing mLrp1b was a specific effect of Lrp1b and not due to side effects or overexpression artefacts (e.g. endoplasmatic reticulum stress (unfolded protein response) that is commonly induced by overexpression of highly-glycosylated proteins), siRNA-mediated LRP1B knockdown was applied.