Abstract:
:We have investigated the effect of partial hepatectomy (HEP) on tumor growth. MH-134 hepatoma cells, which were inoculated in syngeneic C3H/He mice from 3 to 10 days after HEP, grew with a linear increase in size until 7 days, began to regress, and disappeared 14 days after the inoculation. The survival rate was 100%, and the recurrence of tumor was not observed during the following 4 mo. On the other hand, the growth of another syngeneic tumor, X-5563, and of an allogeneic Ehrlich tumor was not affected by HEP. When MH-134 tumor cells were inoculated 7 days before or 15 days after HEP, tumor regression was not observed. The Winn assay showed the presence of tumor-neutralizing activity in spleen cells of MH-134 tumor-regressed mice. Cytotoxic activity against MH-134 tumor cells was also detected in the spleen cells. Analysis by using monoclonal antibodies showed that the effector cells were Thy-1+ and Lyt-2+ cells. Thus, HEP and the following liver cell regeneration may play a role in augmentation of specific immune response to the transplanted hepatoma cells.
journal_name
Cancer Resjournal_title
Cancer researchauthors
Ono M,Tanaka N,Orita Ksubject
Has Abstractpub_date
1986-10-01 00:00:00pages
5049-53issue
10eissn
0008-5472issn
1538-7445journal_volume
46pub_type
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