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Ribosomal highly basic 23-kDa protein as a reliable standard for gene expression analysis.

R Jesnowski1, C Backhaus, J Ringel

  • 1Department of Medicine II, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany. ralf.jesenofsky@med.ma.uni-heidelberg.de

Pancreatology : Official Journal of the International Association of Pancreatology (IAP) ... [Et Al.]
|July 26, 2002
PubMed
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The ribosomal protein RPL13A is a reliable housekeeping gene for normalizing gene expression in pancreatic tissues. Unlike GAPDH, RPL13A shows constant expression, making it suitable for studies on pancreatic diseases.

Area of Science:

  • Molecular Biology
  • Genomics
  • Biochemistry

Background:

  • Gene expression analysis relies on normalization with housekeeping genes.
  • Common housekeeping genes like GAPDH are unreliable in pancreatic cancer and chronic pancreatitis due to upregulation.
  • A stable housekeeping gene is needed for accurate gene expression studies in pancreatic diseases.

Purpose of the Study:

  • To identify a suitable housekeeping gene for gene expression analysis in pancreatic diseases.
  • To evaluate the stability of ribosomal protein L13A (RPL13A) as a normalization control.

Main Methods:

  • RNA extraction from various tissues and disease states.
  • Reverse transcription and PCR amplification.
  • Quantification of GAPDH and RPL13A gene expression.

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Main Results:

  • GAPDH expression showed significant variability across different tissues and disease states.
  • RPL13A (ribosomal highly basic 23-kDa protein) exhibited constant expression in all investigated samples.
  • RPL13A stability was confirmed for normalization in pancreatic and prostate tissues.

Conclusions:

  • RPL13A is a recommended housekeeping gene for normalization in gene expression studies involving the pancreas.
  • The findings support the use of RPL13A as a reliable control for accurate gene expression analysis in pancreatic research.