IS-RT-PCR assay detection of MT-MMP in a human breast cancer cell line - PubMed (original) (raw)
IS-RT-PCR assay detection of MT-MMP in a human breast cancer cell line
L M Haupt et al. Biochem Mol Biol Int. 1996 Jun.
Abstract
The in situ-reverse transcription-polymerase chain reaction (IS-RT-PCR) is a method that allows the direct localisation of gene expression. The method utilises the dual buffer mediated activity of the enzyme rTth DNA polymerase enabling both reverse transcription and DNA amplification. Labelled nucleoside triphosphates allow the site of expression to be labelled, rather than the PCR primers themselves, giving a more accurate localisation of transcript expression and decreased background than standard in situ hybridisation (ISH) assays. The MDA-MB-231 human breast carcinoma (HBC) cell line was assayed via the IS-RT-PCR technique, using primers encoding MT-MMP (membrane-type matrix metalloproteinase) and human beta-actin. Our results clearly indicate baseline expression of MT-MMP in the relatively invasive MDA-MB-231 cell line at a signal intensity similar to the housekeeping gene beta-actin, and results following induction with Concanavalin A (Con A) are consistent with our previous results obtained via Northern blotting.
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