ISOLATION AND CHARACTERIZATION OF LYMPHOCYTES AND MACROPHAGES FROM SOLID, MALIGNANT HUMAN-TUMORS
ISOLATION AND CHARACTERIZATION OF LYMPHOCYTES AND MACROPHAGES FROM SOLID, MALIGNANT HUMAN-TUMORS
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DOI:
10.1002/ijc.2910230507
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发表时间:
1979-01-01
影响因子:
6.4
通讯作者:
SVAAR, H
中科院分区:
文献类型:
--
作者:
SVENNEVIG, JL;LOVIK, M;SVAAR, H
In mechanically prepared cell suspensions from 17 solid, malignant human tumors, 0.5-5.0% (mean 2.0%) lymphocytes and 1.0-28.0% (mean 7.4%) macrophages were found. Mononuclear cells (MC) were isolated using the Boyum technique. From each biopsy weighing 1-4 g, on average, 1.3 .times. 106 lymphocytes and 0.8 .times. 106 macrophages were recovered. The tumor-infiltrating lymphocytes (TIL) were characterized with regard to T [thymus-derived cell] and B [bone marrow-derived cell] markers. The proportion of TIL-forming rosettes with SRBC [sheep red blood cells] (T cells) was 43%, significantly less than for peripheral blood lymphocytes (PBL) from cancer patients (58%) or normal controls (80%). Of the TIL 15% were B cells and 42% had no T or B cell markers. Macrophages (TIM) were identified by non-specific esterase staining and phagocytosis. In 4 cases the tumor cells were also stained with .alpha.-naphthyl butyrate. Corresponding findings were made on esterase-stained cryostat sections from 4 tumors. Macrophages were found within and around the tumor tissues, occasionally localized to necrotic areas, but in most cases with no sign of necrosis of the surrounding cells. In some tumor cell suspensions typical clusters of lymphocytes and macrophages were seen. Total lymphocyte and T cell counts were markedly reduced in the peripheral blood of cancer patients; total monocyte counts were within the normal range.