Volume 57, Issue S8 pp. 53-56
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Detection of small-cell-lung-cancer cells in bone-marrow aspirates by monoclonal antibodies NCC-LU-243, NCC-LU-246 and MLuCl

F. Pasini

Corresponding Author

F. Pasini

Divisione e Cattedra di Oncologia Medica, Università di Verona, Piazzale Stefani, 1, Verona

Divisione e Cattedra di Oncologia Medica, Università di Verona, Piazzale Stefani, 1, Verona. Fax: 45-8341277Search for more papers by this author
G. Pelosi

G. Pelosi

Servizio di Anatomia Patologica, Ospedale Civile Maggiore, Verona, Italy

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J. A. Ledermann

J. A. Ledermann

Department of Oncology, University College London Medical School, London W1P8BT, UK

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G. L. Cetto

G. L. Cetto

Divisione e Cattedra di Oncologia Medica, Università di Verona, Piazzale Stefani, 1, Verona

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First published: 1994
Citations: 9

Abstract

We have used immunocytochemistry to identify tumor cells in bone-marrow aspirates of patients with small-cell lung cancer and we have compared the results with conventional histomorphology. The monoclonal antibodies (MAbs) used were NCC-LU-243 and NCC-LU-246 (cluster 1) and MLuCl (cluster 6); 108 slides (52 patients) incubated with NCC-LU-246, 106 (51 patients) with NCC-LU-243 and 69 with MLuCl (36 patients) were evaluated. Bone-marrow biopsies (83) were also obtained from 50 of these patients; 48/108 bone marrow aspirates were positive for cluster-1 antigen and 22/69 were positive for MLuCl. Immunocytochemistry with anti-NCAM MAbs detected bone-marrow localization in 38/83 bone-marrow aspirates compared with 9/83 bone-marrow biopsies, while MLuCl was positive in 18/60 and bone-marrow biopsies in 6/60. Moreover, bone-marrow aspirates were positive for cluster-1 antigen in 7/17 patients with limited disease at diagnosis. Patients with positive bone-marrow biopsies had significantly shorter survival. No differences were found between patients with positive and those with negative marrow aspirates.

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