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Evaluation of Lung Metastasis in Mouse Mammary Tumor Models by Quantitative Real-time PCR
Published on: January 29, 2016
Using quantitative real-time reverse transcriptase polymerase chain reaction to validate gene regulation by PTTG
Siva Kumar Panguluri1, Sham S Kakar
1Department of Anatomical Sciences and Neurobiology, University of Louisville, 500 S Preston Street, HSC A-Tower, Room 1001, Louisville, KY 40202, USA.
Abstract:
Pituitary tumor transforming gene is an important gene which is involved in many cellular functions including cell division, DNA repair, organ development, expression, and secretion of various angiogenic and metastatic factors. Overexpression of this gene has also been reported in many cancers. Understanding the molecular pathways induced by this oncogene is therefore important not only to understand the development of the disease but also for proper diagnosis and treatment. Gene profiling is an excellent tool to identify the genetic mechanisms, networks, and pathways associated with a particular disease. Oligo-nucleotide microarrays can be everybody's choice as a first step to identify the global expression of genes involved in the study of interest. Each technique has its own limitation. Therefore, further confirmation of the results with a different technique is always necessary. Quantitative real-time reverse-transcriptase polymerase chain reaction (qRT-PCR) is one of the widely used and best described techniques to confirm the microarray data. Here, we describe the qRT-PCR techniques for gene profiling studies and the methods used for the analysis of the output data for further studies.
Insights
Pituitary tumor transforming gene (PTTG) is crucial in cell functions and cancer. This study details quantitative real-time reverse-transcriptase polymerase chain reaction (qRT-PCR) methods for gene profiling and data analysis.
Area of Science:
- Molecular Biology
- Oncology
- Genetics
Background:
- The pituitary tumor transforming gene (PTTG) plays a significant role in cellular functions like division, DNA repair, and development.
- PTTG overexpression is linked to various cancers, highlighting its oncogenic potential.
- Understanding PTTG's molecular pathways is vital for disease diagnosis and treatment strategies.
Purpose of the Study:
- To outline gene profiling techniques for studying molecular pathways.
- To describe quantitative real-time reverse-transcriptase polymerase chain reaction (qRT-PCR) as a method for validating gene expression data.
- To detail data analysis methods for gene profiling studies.
Main Methods:
- Gene profiling using oligonucleotide microarrays to identify global gene expression.
- Confirmation of microarray data using quantitative real-time reverse-transcriptase polymerase chain reaction (qRT-PCR).
- Description of data analysis techniques for qRT-PCR output.
Main Results:
- Oligonucleotide microarrays serve as an initial tool for broad gene expression analysis.
- qRT-PCR is a reliable method for confirming gene expression patterns identified by microarrays.
- Standardized methods for qRT-PCR data analysis are essential for accurate interpretation.
Conclusions:
- Gene profiling, particularly with microarrays and qRT-PCR, is essential for understanding cancer-related genes like PTTG.
- Accurate data analysis of gene expression is critical for advancing molecular oncology.
- The described qRT-PCR techniques provide a framework for future gene profiling research.
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