Abstract:
:The effect on tumor progression produced by the injection of VCN-treated tumor cells in dogs with spontaneous mammary tumors was investigated. Untreated dogs of different races and different ages with at least two palpable spontaneous mammary tumors were selected. One of the tumors was left in the animal for further clinical examination whereas the other tumor(s) was (were) excised for preparation of a single-cell suspension by mechanical disintegration and enzymatic digestion with collagenase and trypsin. (1) In the first group, each animal was infected with 2 times 10-7 similarly prepared autologous, mitomycin-treated tumor cells; in 8 out of 12 dogs of this group the tumors progressed while so far 1 dog has died of metastasis. (2) In the second group, each animal received the same number of 2 times 10-7 tumor cells, which were mitomycin- and VCN-treated: 13 out of 15 dogs had a significant regression of their tumors to less than 10% of the original volume; in 1 dog the tumor remained unchanged and in 1 dog it progressed. (3) In the third group, 8 dogs received 1 times 10-8 mitomycin- and VCN-treated tumor cells: the application of this cell dose resulted in an accelerated tumor progression in all 8 dogs, 3 of which have already died of metastasis. The significance of these findings, with respect to potentiation and abrogation of the immunological response and with regard to immunotherapy in man, is discussed.
journal_name
Int J Cancerjournal_title
International journal of cancerauthors
Sedlacek HH,Meesmann H,Seiler FRdoi
10.1002/ijc.2910150307keywords:
subject
Has Abstractpub_date
1975-03-15 00:00:00pages
409-16issue
3eissn
0020-7136issn
1097-0215journal_volume
15pub_type
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journal_title:International journal of cancer
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abstract::The ability to monitor breast cancer initiation and progression on the molecular level would provide an effective tool for early diagnosis and therapy. In the present study, we focused on the underglycosylated MUC-1 tumor antigen (uMUC-1), which is directly linked to tumor progression from pre-malignancy to advanced m...
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journal_title:International journal of cancer
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journal_title:International journal of cancer
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更新日期:2004-01-01 00:00:00
abstract::Polymorphisms in nucleotide oligomerization domain 2 gene (NOD2) have been associated with increased susceptibility to Crohn's disease. Recently, possible association of the NOD2 variants R702W, G908R and 3020insC with colorectal cancer (CRC) has been studied among Polish, Greek, Finnish and New Zealand Caucasian CRC ...
journal_title:International journal of cancer
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更新日期:2007-07-01 00:00:00
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更新日期:2001-06-15 00:00:00
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更新日期:1994-06-15 00:00:00
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更新日期:2018-10-01 00:00:00
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journal_title:International journal of cancer
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更新日期:1999-11-26 00:00:00
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journal_title:International journal of cancer
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