Mononuclear cell infiltrate and HLA-DR expression in low grade astrocytomas

Autor: F. F. Cruz-Sanchez, Margaret M. Esiri, Hugh B. Coakham, J. T. Hughes, Tim H. Moss, M. L. Rossi
Rok vydání: 1988
Předmět:
Zdroj: Acta Neuropathologica. 76:281-286
ISSN: 1432-0533
0001-6322
DOI: 10.1007/bf00687776
Popis: Frozen samples from 23 low grade (grade I and II) astrocytomas were studied by means of a panel of monoclonal antibodies to macrophages, lymphocytes (and their subsets) and HLA-DR antigens. Macrophages were present in low to moderate numbers in 38%-86% of cases, the variance in figures depending on the antibody used. T lymphocytes, the majority of CD8 phenotype, were detected in low numbers in 78% of tumours. B lymphocytes were scanty in 22% (5/22) and totally absent in the remaining cases. HLA-DR antigen was expressed by tumour cells in 35% (6/17) of cases. These findings indicate that in some low grade astrocytomas there is a mononuclear cell infiltrate with macrophages and secondarily CD8+ lymphocytes playing the major role. The significance of these findings remains speculative at present.
Databáze: OpenAIRE