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mRNA Expression Analysis and Classification of Colonic Biopsy Samples Using Oligonucleotide and cDNA Microarray Techniques

Authors: Orsolya, Galamb;

mRNA Expression Analysis and Classification of Colonic Biopsy Samples Using Oligonucleotide and cDNA Microarray Techniques

Abstract

A vastagbéldaganatok korai diagnosztikája, terápiája, követése napjainkban sem teljesen megoldott. Munkánk során a vastagbéldaganatok biomarker-vizsgálatát, génexpressziós elemzését és osztályozását végeztük. Munkacsoportunk vizsgálatai alapján megállapítható, hogy a biopsziás minták oligonukleotid microarray-vizsgálati módszere az Affymetrix minőségi kritériumoknak messzemenően megfelelő, standardizált és jól reprodukálható. Megállapítottuk továbbá, hogy a Taqman mikrofolyadék-kártyarendszer alkalmas a chipen mért génexpressziós változások nagy teljesítményű, gyors és költséghatékony valós idejű PCR-es megerősítésére. Kimutattuk azt is, hogy az oszteopontin és az oszteonektin fokozatosan emelkedő mRNS- és fehérjeexpressziója erősen korrelál a vastagbél adenoma-dysplasia-carcinoma szekvencia előrehaladásával. Tíz, a colorectalis adenoma-dysplasia-carcinoma átmenettel párhuzamosan fokozódó mRNS-expressziójú, valós idejű PCR-rel is megerősített szöveti markert azonosítottunk, amelyet még nem írtak le az irodalomban. Vizsgálataink során 27, 13, illetve 10 „top” gént azonosítottunk, amelyek mRNS-expressziós mintázata a vastagbél-adenomával, a colorectalis carcinomával, illetve a gyulladásos bélbetegségekkel asszociálódik.

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Keywords

Adenoma, Colon, Reverse Transcriptase Polymerase Chain Reaction, Biopsy, Carcinoma, Gene Expression, Sequence Analysis, DNA, Inflammatory Bowel Diseases, Up-Regulation, Cell Transformation, Neoplastic, Humans, Osteonectin, Osteopontin, RNA, Messenger, Colorectal Neoplasms, Oligonucleotide Array Sequence Analysis

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
Average
Average
Average
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