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Series GSE212902 Query DataSets for GSE212902
Status Public on Oct 10, 2022
Title Histological subtypes drive distinct prognostic immune signatures in classical Hodgkin lymphoma.
Organism Homo sapiens
Experiment type Expression profiling by array
Summary Classical Hodgkin lymphoma (cHL) is a highly curable disease, with about 80% of patients cured using standard first-line chemotherapy. However, outcomes for relapsed/refractory patients re-main unfavorable and there is a critical lack of predictive biomarkers for early identification of these patients who may benefit from new therapeutic strategies. Here we evaluated the dynamic expression of 571 immune-related genes in a cohort of 42 cHL using NanoString technology. We identified a 19-genes immune signature predictive of relapse at the time of diagnosis, which was found to be strongly dependent on histological subtype. Moreover, comparative analyses be-tween paired diagnostic/relapsed biopsies of nodular sclerosis cHL showed 134 differentially expressed genes, highlighting an immune contexture shift at relapse not found in the mixed-cellularity subtype. Overall, these results strongly suggest that the predictive value of immune signature in cHL is influenced by histological subtype, a criterion that should be con-sidered when assessing new immunotherapy strategies.
 
Overall design Sixty-six formalin fixed paraffin embedded (FFPE) cHL biopsies at diagnosis and/or at relapse were obtained from a total of 42 patients, including 30 r/r cHL patients and 12 non-r/r cHL patients. Thirty-five FFPE samples were available at diagnosis (n= 12 non-r/r cHL and n=23 r/r cHL) and FFPE paired diagnosis and relapse biopsies were available for 22/30 r/r cHL patients. Nodular sclerosis subtype was the most represented histological subtype in our series (n=24/42, 57.1%) followed by the mixed-cellularity subtype (n=15/42, 35.7%). Only two patients presented a lymphocyte-rich pattern (4.8%), and one patient displayed a lymphocyte-depleted pattern (2.4%). The average age at diagnosis of r/r patients was 30 years (ranging from 15y to 83y) and that of non-r/r patients was 31 years (ranging from 23y to 58y). Less than 25% (n=9/39) of cases were Epstein-Barr virus (EBV) positive. EBV status was unknown for 3 cases. Thirty-two (78%) patients, including 20/30 r/r patients and 12/12 non-r/r patients, had extensive disease at diagnosis (Ann Arbor stage III-IV). Of the 40 assessable patients, 30.9% (n=13) were treated with bleomycin, etoposide, doxoru-bicin, cyclophosphamide, vincristine, procarbazine and prednisone (BEACOPP) and 57.1% (n=24) received doxorubicin, bleomycin, vinblastine and dacarbazine (ABVD). The 3 remaining patients received alternative chemotherapy
 
Contributor(s) Lamaison C, Syrykh C
Citation(s) 36230815
Submission date Sep 08, 2022
Last update date Oct 28, 2022
Contact name Pauline Gravelle
E-mail(s) pauline.gravelle@inserm.fr
Organization name IUCT-ONCOPOLE
Department Anatomy-Pathology
Street address 1 Avenue Irène Joliot Curie
City TOULOUSE
ZIP/Postal code 31059
Country France
 
Platforms (1)
GPL32643 Nanostring nCounter Human Immunology V2 with panel plus
Samples (66)
GSM6560831 cHL biopsy, 7R
GSM6560832 cHL biopsy, 15D
GSM6560833 cHL biopsy, 15R
Relations
BioProject PRJNA877867

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Supplementary file Size Download File type/resource
GSE212902_RAW.tar 480.0 Kb (http)(custom) TAR (of RCC)
Processed data included within Sample table

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