Nanopore Sequencing for T-Cell Receptor Rearrangement Analysis in Cutaneous T-Cell Lymphoma
- PMID: 39518138
- PMCID: PMC11544856
- DOI: 10.3390/cancers16213700
Nanopore Sequencing for T-Cell Receptor Rearrangement Analysis in Cutaneous T-Cell Lymphoma
Abstract
Background: Analysis of T-cell receptor (TCR) clonality is a major diagnostic tool for lymphomas, particularly for cutaneous T-cell lymphomas (CTCL) like Mycosis fungoides and Sézary syndrome. However, a fast and cost-effective workflow is needed to enable widespread use of this method. Methods: We established a procedure for TCR rearrangement analysis via Oxford Nanopore Technology (ONT) sequencing. TCR receptor rearrangements (TCR-gamma and TCR-beta chains) were analyzed in samples from 45 patients with various diagnoses: Mycosis fungoides (37/45), Sézary Syndrome (2/45), folliculotropic CTCL (1/45), and non-CTCL diagnoses as polyclonal controls (5/45). Sample types included formalin-fixed paraffin-embedded (FFPE) samples (27/45), fresh frozen samples (9/45), and CD3-isolated cells (9/45). In addition, DNA of a Jurkat cell line was used as a monoclonal control. TCR amplicons were generated employing an optimized version of the protocol from the Euro Clonality consortium. Sequencing was conducted on the ONT GridION and Illumina MiSeq platforms, followed by similar bioinformatic analysis protocols. The tumor clone frequency (TCF), a crucial prognostic factor for CTCL patients, was used for method comparison. Results: The use of an optimized amplicon protocol and adapted bioinformatic tools demonstrated a strong correlation in TCF values between both sequencing methods across all sample types (range R: 0.992-0.996; range r2: 0.984-0.991). Conclusions: In summary, ONT sequencing was able to detect TCR clonality comparable to NGS, indicating its potential as a faster and more cost-effective option for routine diagnostic use.
Keywords: Mycosis fungoides; T-cell receptor rearrangement analysis; cutaneous T-cell lymphoma; nanopore sequencing.
Conflict of interest statement
The authors declare no conflict of interest. R.G.: Research support: Amgen, MerckSerono, SUN Pharma, Sanofi/Regeneron, Admiral Hermal, Kyowa Kirin. Honoraria for lectures: Bristol-MyersSquibb, Novartis, MSD, Almirall-Hermal, Amgen, Merck-Serono, SUN, Pierre-Fabre, Sanofi/Regeneron, SUN Pharma Honoraria for advisory boards: Bristol-MyersSquibb, Novartis, MSD, Almirall-Hermal, Amgen, Pierre-Fabre, Merck-Serono, 4SC, Immunocore, SUN Pharma, Sanofi/Regeneron, Delcath. RS: Kyowa Kirin, 4SC Ag, Stemline, Innate Pharma.
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References
-
- van Santen S., Roach R.E.J., van Doorn R., Horváth B., Bruijn M.S., Sanders C.J.G., de Pooter J.C., van Rossum M.M., de Haas E.R.M., Veraart J.C.J.M., et al. Clinical Staging and Prognostic Factors in Folliculotropic Mycosis Fungoides. JAMA Dermatol. 2016;152:992–1000. doi: 10.1001/jamadermatol.2016.1597. - DOI - PubMed
-
- Treatment of Early-Stage Mycosis Fungoides: Results from the PROspective Cutaneous Lymphoma International Prognostic Index (PROCLIPI) Study. [(accessed on 10 January 2024)]; Available online: https://pubmed.ncbi.nlm.nih.gov/32479678/ - PMC - PubMed
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