A Rapid Polymerase Chain Reaction-based Technique for Detecting Clonal T-cell Receptor Gene Rearrangements in Cutaneous T-cell Lymphomas of both the αβ and γδ Varieties
- 1 June 1996
- journal article
- Published by Ovid Technologies (Wolters Kluwer Health) in Diagnostic Molecular Pathology
- Vol. 5 (2), 121-126
- https://doi.org/10.1097/00019606-199606000-00007
Abstract
T-cell receptor-gamma gene rearrangements provide specific clonal markers for a variety of lymphoid malignancies. T-cell receptor gene rearrangements in patients with cutaneous T-cell lymphoma were examined using conventional Southern blot analysis and a newly developed polymerase chain reaction (PCR)-based technique. The oligoprimers amplified a rearranged V gamma and J gamma segment (including the N region) of the T-cell receptor-gamma gene, and products were resolved using high-resolution nondenaturing polyacrylamide gel electrophoresis. Our results demonstrated concordance between the two techniques in 10 patients with cutaneous T-cell lymphomas (including nine cases of C beta and one case of delta 2 TCR gene rearrangements) and 10 negative controls. In the present study, we have shown that this PCR-based method provides a highly sensitive, specific technique for the detection of T-cell clones of both the alpha beta and gamma delta varieties and could be used in both fresh and formalin-fixed, paraffin-embedded tissues. It is estimated that this PCR-based technique is 10 to 50 times more sensitive than conventional Southern blot analysis in the detection of small T-cell clones.Keywords
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