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Τρίτη 1 Δεκεμβρίου 2020

In Vitro System for the Detection of Prostate Cancer Markers via Loop-Mediated Isothermal Amplification

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Abstract

Loop-mediated isothermal amplification (LAMP) of nucleic acids enables the detection of amplification products 10–20 min after the beginning of the reaction. An intraoperative method for the detection of metastases in lymph nodes based on LAMP, one-step nucleic acid amplification (OSNA), allows the rapid detection of the epithelial-specific marker gene KRT19 in lymph nodes. The standard protocol for OSNA was developed more than 10 years ago to detect breast cancer metastases in lymph nodes. Since then, a new version of the key enzyme involved in the reaction (Bst-polymerase) was obtained, but its use in OSNA has remained unexplored. Moreover, the time has come to apply OSNA to the detection of other cancer types, in particular, prostate cancer. The first step is to create an in vitro system that allows LAMP to be carried out on prostate-cancer cell lines. In this work, the LAMP protocol was developed for the new Bst 3.0 polymerase with optim ized dNTP concentrations and without reverse transcriptase, and cell lines were selected (DU-145 for prostate cancer and Molt-4 for negative control). As a result, a new, in vitro system for the LAMP-based detection of prostate cancer with the marker gene KRT19 was developed.

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Medicine by Alexandros G. Sfakianakis,Anapafseos 5 Agios Nikolaos 72100 Crete Greece,00302841026182,00306932607174,alsfakia@gmail.com,

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