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Unknown,Transcriptomics,Genomics,Proteomics

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Transcription profiling of natural-killer (NK) cell lymphoma to determine the disease molecular signature.

ABSTRACT: NK-cell lymphoma shares strikingly similar molecular features with a distinct subset of gamma-delta T-cell lymphoma. Gene expression profiling of NK-cell lymphoma patient samples was performed to investigate whether molecular signatures can be used to identify entities of peripheral T-cell lymphoma (PTCL) with NK-cell-like features. Gene expression profiling was performed on NK-cell maligancies to examine extranodal NK/T-cell lymphoma (ENKTL) and aggressive NK-cell leukemia (ANKL) and well-characterized cell lines of NK- and T-cell lineages to define molecular classifiers that can distinguish ENKTL from other lymphomas.

ORGANISM(S): Homo sapiens

SUBMITTER: Javeed Iqbal

PROVIDER: E-GEOD-19067 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Transcription profiling of biopsy samples from peripheral T-cell lymphoma (PTCL)

Project description:Molecular signatures to improve diagnosis in PTCL and prognostication in angioimmunoblastic T-cell lymphoma (AITL). Gene expression profiling of PTCL patient samples was performed to investigate whether molecular signatures can be used to identify distinct entities of PTCL. Gene expression profiling was performed on PTCL and natural-killer cell lymphoma (NKCL) to define molecular classifiers for the more common entities of PTCL, to identify unique entities within PTCL-U, to elucidate unique tumor and microenvironmental interactions and oncogenic pathways in AITL, and to construct a molecular prognosticator for AITL.

2010-02-27 | E-GEOD-19069 | biostudies-arrayexpress

Minimal Genomic Instability and Increased Immune Activity Differentiate EBV-positive PTCL from ENKTL and PTCL NOS [CNA]

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Molecular signatures in natural-killer (NK) cell lymphoma

Project description:NK-cell lymphoma shares strikingly similar molecular features with a distinct subset of gamma-delta T-cell lymphoma. Gene expression profiling of NK-cell lymphoma patient samples was performed to investigate whether molecular signatures can be used to identify entities of peripheral T-cell lymphoma (PTCL) with NK-cell-like features.

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Gene expression signatures delineate biological and prognostic subgroups in peripheral T-cell lymphoma

Project description:Peripheral T-cell lymphoma (PTCL) encompasses a heterogeneous group of neoplasms with generally poor clinical outcome. Currently 50% of PTCL cases are not classifiable: PTCL-not otherwise specified (NOS). Gene-expression profiles on 372 PTCL cases were analyzed and robust molecular classifiers and oncogenic pathways that reflect the pathobiology of tumor cells and their microenvironment were identified for major PTCL-entities, including 114 angioimmunoblastic T-cell lymphoma (AITL), 31 anaplastic lymphoma kinase (ALK)-positive and 48 ALK-negative anaplastic large cell lymphoma, 14 adult T-cell leukemia/lymphoma and 44 extranodal NK/T-cell lymphoma that were further separated into NK-cell and gdT-cell lymphomas. Thirty-seven percent of morphologically diagnosed PTCL-NOS cases were reclassified into other specific subtypes by molecular signatures. Reexamination, immunohistochemistry, and IDH2 mutation analysis in reclassified cases supported the validity of the reclassification. Two major molecular subgroups can be identified in the remaining PTCL-NOS cases characterized by high expression of either GATA3 (33%; 40/121) or TBX21 (49%; 59/121). The GATA3 subgroup was significantly associated with poor overall survival (P=.01). High expression of cytotoxic genesignaturewithin the TBX21 subgroup also showed poor clinical outcome (P=.05). InAITL, high expression of several signatures associated with the tumor microenvironment was significantly associated with outcome. A combined prognostic score was predictive of survival in an independent cohort (P=.004).

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Gene expression Profiling in Follicular Lymphomas

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Gene expression of extranodal NK/T cell lymphoma

Project description:Gene expression of extranodal NK/T cell lymphoma

| PRJNA319539 | ENA

High-throughput sequence analysis of peripheral T-cell lymphomas indicates subtype specific viral gene expression patterns and immune cell microenvironments

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2019-06-25 | GSE131261 | GEO

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2006-01-11 | GSE2432 | GEO

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