Abstract:
AIMS:To study immunohistochemically a group of 28 primary lung cancers which demonstrated histological features reminiscent of those characteristic of regression in malignant melanoma, to determine the phenotype of their immune cell infiltrates. METHODS AND RESULTS:Using a standard s-ABC immunoperoxidase method then quantification by the Leica Q500 MC image analyser, the cellular infiltrate in these tumours, when compared to 67 control cases, showed excess CD3 + T lymphocytes (P < 0.007), with an increase in CD4:CD8 ratio and increased CD68 + macrophages (P = 0.00001). CD57 + natural killer cells and S100 + Langerhans cells were also increased, but not quite significantly (P = 0.048 and P = 0.072, respectively). CONCLUSIONS:This immunophenotype resembles that shown in regressing skin malignancies and suggests a similar process occurring in lung cancer. Regressing lung cancers are associated with a better prognosis than matched controls (P = 0.0034), some showed radiological evidence of growth retardation and the group had an excess of the large cell undifferentiated histological type.
journal_name
Histopathologyjournal_title
Histopathologyauthors
Kerr KM,Johnson SK,King G,Kennedy MM,Weir J,Jeffrey Rsubject
Has Abstractpub_date
1998-07-01 00:00:00pages
55-63issue
1eissn
0309-0167issn
1365-2559journal_volume
33pub_type
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