PMID- 9714884 OWN - NLM STAT- MEDLINE DCOM- 19981029 LR - 20201215 IS - 0736-6205 (Print) IS - 0736-6205 (Linking) VI - 25 IP - 2 DP - 1998 Aug TI - Detection and characterization of alpha-beta-T-cell clonality by denaturing gradient gel electrophoresis (DGGE). PG - 244-50 AB - Accumulation of T cells carrying identical T-cell receptors (TCR) is associated with a number of immunological and non-immunological diseases. Therefore, it is of interest to be able to analyze complex T-cell populations for the presence of clonally expanded subpopulations. Here, we describe a simple method combining reverse transcription (RT)-PCR and denaturing gradient gel electrophoresis (DGGE) for rapid detection and characterization of T-cell clonality. The detection of clonally expanded T cells by DGGE relies on the fact that clonal transcripts have no junctional diversity and therefore resolve at a fixed position in the gel, which is determined by their melting properties. For polyclonal populations with a high degree of junctional diversity, the different DNA molecules will resolve at different positions in the gel and together will be revealed as a smear. For each of the TCR beta-variable gene (BV) 1-24 families, cloned transcripts were amplified and shown to resolve as distinct bands in the denaturing gradient gel, whereas the analysis of polyclonal T-cell populations resulted in a smear in the gel. The present method might prove useful to test for clonotypic T-cells in a variety of pathological and physiological conditions and for monitoring T-cell responses in diagnostic and therapeutic settings. FAU - thor Straten, P AU - thor Straten P AD - Department of Tumor Cell Biology, Danish Cancer Society, Copenhagen, Denmark. FAU - Barfoed, A AU - Barfoed A FAU - Seremet, T AU - Seremet T FAU - Saeterdal, I AU - Saeterdal I FAU - Zeuthen, J AU - Zeuthen J FAU - Guldberg, P AU - Guldberg P LA - eng PT - Research Support, Non-U.S. Gov't PT - Technical Report PL - England TA - Biotechniques JT - BioTechniques JID - 8306785 RN - 0 (DNA Primers) RN - 0 (Receptors, Antigen, T-Cell, alpha-beta) SB - IM MH - Cells, Cultured MH - Clone Cells MH - DNA Primers MH - Electrophoresis, Polyacrylamide Gel/*methods MH - Humans MH - *Nucleic Acid Denaturation MH - Receptors, Antigen, T-Cell, alpha-beta/chemistry/*genetics MH - Reverse Transcriptase Polymerase Chain Reaction MH - T-Lymphocytes/*metabolism MH - Transcription, Genetic EDAT- 1998/08/26 00:00 MHDA- 1998/08/26 00:01 CRDT- 1998/08/26 00:00 PHST- 1998/08/26 00:00 [pubmed] PHST- 1998/08/26 00:01 [medline] PHST- 1998/08/26 00:00 [entrez] AID - 10.2144/98252st05 [doi] PST - ppublish SO - Biotechniques. 1998 Aug;25(2):244-50. doi: 10.2144/98252st05.