Abstract:
:Fibrin deposition in the microenvironment of tumor cells may be critical to tumor growth and metastasis formation. Procoagulant activities of tumor cells themselves, or of infiltrating macrophages, activated by the host's immune system to the tumor, may both contribute to coagulopathies associated with metastases. Lymphokine (LK) supernatant activated procoagulant activity on normal peripheral blood monocytes but failed to induce activity on mononuclear cells from 18/22 patients with locally advanced or disseminated non-lymphoid tumors. Monocytes from the remaining patients had very low basal levels of MPCA and were less sensitive than normal cells to LK. Monocytes from 4 patients (3 with tumors with a high growth fraction) had extremely elevated levels of basal procoagulant activity, possibly due to maximal activation in vivo. Neither LK nor bacterial lipopolysaccharide (LPS) stimulated procoagulant production of these cells. By contrast, cells from 8/13 patients produced procoagulant in response to LPS. This study indicated that monocyte function of patients with disseminated cancer is suppressed with respect to LK stimulation, but that cells with normal basal levels of MPCA respond to LPS. Preactivation of mononuclear procoagulant in vivo precluded subsequent stimulation by either LPS or LK.
journal_name
Int J Cancerjournal_title
International journal of cancerauthors
Geczy CL,Ryan J,Walsh J,Goldstein Ddoi
10.1002/ijc.2910370506subject
Has Abstractpub_date
1986-05-15 00:00:00pages
677-82issue
5eissn
0020-7136issn
1097-0215journal_volume
37pub_type
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journal_title:International journal of cancer
pub_type: 杂志文章
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journal_title:International journal of cancer
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更新日期:2007-12-15 00:00:00
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doi:10.1002/ijc.1214
更新日期:2001-05-15 00:00:00
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pub_type: 杂志文章,评审
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更新日期:2020-10-22 00:00:00
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journal_title:International journal of cancer
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doi:
更新日期:2000-07-15 00:00:00
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journal_title:International journal of cancer
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