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Clinical Chemistry and Laboratory Medicine (CCLM)

Published in Association with the European Federation of Clinical Chemistry and Laboratory Medicine (EFLM)

Editor-in-Chief: Plebani, Mario

Editorial Board Member: Gillery, Philippe / Lackner, Karl J. / Lippi, Giuseppe / Melichar, Bohuslav / Schlattmann, Peter / Tate, Jillian R. / Tsongalis, Gregory J.

13 Issues per year

IMPACT FACTOR 2013: 2.955
Rank 5 out of 29 in category Medical Laboratory Technology in the 2013 Thomson Reuters Journal Citation Report/Science Edition

SCImago Journal Rank (SJR): 0.860
Source Normalized Impact per Paper (SNIP): 1.046



Advances in Reverse Transcription Polymerase Chain Reaction Analysis of Cellular mRNA Levels of Transforming Growth Factor-β1 by Capillary Electrophoresis with Laser-Induced Fluorescence Detection

Alexander Beck / Rainer Lehmann / Giovanni Gambaro / Hans-Ulrich Häring / Erwin D. Schleicher / Wolfgang Voelter / Monica Ceol

Citation Information: Clinical Chemistry and Laboratory Medicine. Volume 37, Issue 5, Pages 527–532, ISSN (Print) 1434-6621, DOI: 10.1515/CCLM.1999.085, June 2005

Publication History

Published Online:


The prosclerotic transforming growth factor β1 (TGF-β1) is a key factor in the induction and maintenance of fibrosis in different organs. To assess relative changes in TGF-β1 mRNA levels, the comparative kinetic reverse transcription-polymerase chain reaction strategy was used. In this method, cellular mRNA levels of the target and a house-keeping gene are reverse transcribed, amplified by the polymerase chain reaction (PCR) and the kinetics of PCR amplification are compared. Since the current determination of the PCR products, using electrophoretic separation in polyacrylamide gel, staining and scanning of the gel, is timeconsuming (≥ 5 hours) and inaccurate, we have developed a method using capillary gel electrophoresis (CGE) in combination with laser-induced fluorescence (LIF) detection for quantification of PCR-products. Using the CGE-LIF method, a minute aliquot of the PCR reaction mixture is separated and quantified within 10 min. Comparison of the values with those obtained by polyacrylamide gel electrophoresis demonstrates the improved sensitivity (> 1000 fold) and accuracy of the proposed method. The CGE-LIF procedure offers a convenient way of automated, comparative analysis of low levels of mRNA via reverse transcription PCR in low cell numbers or small amounts of tissue samples.

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