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HLA class II expression by Hodgkin Reed-Sternberg cells is an independent prognostic factor in classical Hodgkin's lymphoma

Diepstra, A., van Imhoff, G. W., Karim-Kos, H. E., van den Berg, A., te Meerman, G. J., Niens, M., Nolte, I. M., Bastiaannet, E., Schaapveld, M., Vellenga, E. & Poppema, S. 20-Jul-2007 In : Journal of Clinical Oncology. 25, 21, p. 3101-3108 8 p.

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  • HLA Class II Expression by Hodgkin Reed-Sternberg Cells

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DOI

Purpose

The neoplastic Hodgkin Reed-Sternberg ( HRS) cells in classical Hodgkin's lymphoma ( cHL) are derived from B cells. The frequency of HLA class II downregulation and its effect on prognosis are unknown. Patients and

Methods

Immunohistochemistry results for HLA class II were evaluated in 292 primary cHL patients in a population-based approach. Patients were diagnosed between 1989 and 2000 in the northern part of the Netherlands. Median age at diagnosis was 38 years ( range, 8 to 88 years); 63% had Ann Arbor stage I or II, 24% stage III, and 13% stage IV disease. Median follow-up was 7.1 years. For 168 patients, HLA genotype data were available.

Results

Lack of HLA class II cell-surface expression on HRS cells was observed in 41.4% and was more common in patients with extranodal disease, patients with Epstein-Barr virus-negative disease, and patients with HLA class I-negative HRS cells. Alleles of three microsatellite markers in the HLA class II region were associated with presence or absence of protein expression. In univariate analyses, lack of HLA class II expression coincided with adverse outcome ( 5-years failure free survival [ FFS], 67% v 85%; P = .001; 5-years age and sex matched relative survival ( RS), 80% v 90%; P = .027). This effect remained in multivariate analyses for FFS with a hazard ratio of 2.40 ( 95% CI, 1.45 to 3.98) and RS with a relative excess risk of death of 2.55 ( 95% CI, 1.22 to 5.31).

Conclusion

Lack of membranous HLA class II expression by HRS cells in diagnostic lymph node specimens is an independent adverse prognostic factor in cHL.

Original languageEnglish
Pages (from-to)3101-3108
Number of pages8
JournalJournal of Clinical Oncology
Volume25
Issue number21
StatePublished - 20-Jul-2007
Event47th Annual Meeting of the American-Society-of-Hematology - , Gabon
Duration: 10-Dec-200513-Dec-2005

Event

47th Annual Meeting of the American-Society-of-Hematology

10/12/200513/12/2005

Gabon

Event: Other

    Keywords

  • REGULATORY T-CELLS, POSITRON-EMISSION-TOMOGRAPHY, POOR PATIENT SURVIVAL, COMPLEX CLASS-I, PROTEIN EXPRESSION, TISSUE MICROARRAY, CHEMOKINE TARC, SERUM-LEVELS, DISEASE, LYMPHOCYTES

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ID: 1674917