Transcriptional Analysis of Lennert Lymphoma Reveals a Unique Profile and Identifies Novel Therapeutic Targets

Maryam Etebari, Mohsen Navari, Claudio Agostinelli, Axel Visani, Cristiano Peron, Javeed Iqbal, Giorgio Inghirami, Pier Paolo Piccaluga

Research output: Contribution to journalArticle

Abstract

Lennert lymphoma (LL) is a lymphoepithelioid morphological variant of peripheral T-cell lymphoma—not otherwise specified (PTCL/NOS), clinically characterized by better prognosis if compared with other PTCL/NOS. Although well characterized as far as morphology and phenotype are concerned, very little is known regarding its molecular features. In this study, we investigated the transcriptional profile of this tumor aiming 1) to identify its cellular counterparts; 2) to better define its relation with other PTCLs—and, therefore, its possible position in lymphoma classification; and 3) to define pathogenetic mechanisms, possibly unveiling novel therapeutic targets. To address these issues, we performed gene and microRNA expression profiling on LL and other PTCL/NOS cases; we identified different genes and microRNAs that discriminated LL from other PTCL/NOS. Particularly, LL revealed a molecular signature significantly enriched in helper function and clearly distinguishable from other PTCL/NOS. Furthermore, PI3K/Akt/mTOR pathway emerged as novel potential therapeutic target. In conclusion, based on the already known particular morphological and clinical features, the new molecular findings support the hypothesis that LL might be classified as a separate entity. Preclinical and clinical studies testing the efficacy of PI3K/MTOR inhibitors in this setting are warranted.

Original languageEnglish (US)
Article number780
JournalFrontiers in Genetics
Volume10
DOIs
StatePublished - Sep 10 2019

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Keywords

  • Lennert lymphoma
  • WHO classification
  • gene expression profiling
  • miRNA profiling
  • peripheral T-cell lymphoma—not otherwise specified

ASJC Scopus subject areas

  • Molecular Medicine
  • Genetics
  • Genetics(clinical)

Cite this

Etebari, M., Navari, M., Agostinelli, C., Visani, A., Peron, C., Iqbal, J., Inghirami, G., & Piccaluga, P. P. (2019). Transcriptional Analysis of Lennert Lymphoma Reveals a Unique Profile and Identifies Novel Therapeutic Targets. Frontiers in Genetics, 10, [780]. https://doi.org/10.3389/fgene.2019.00780