Abstract:
:The inability of spontaneous and some laboratory-induced tumors to stimulate the immune system has continuously raised the question of the validity of using immunological maneuvers in order to control tumor growth. In this project we suggest that a tumor which is nonimmunogenic still has an immunogenic potential that can be revealed and used in order to stimulate antitumor immunity and consequently tumor destruction. YAC, a Moloney-virus-induced tumor of A mice, failed to stimulate immunological responses. This tumor homogenate was exposed to nonreduced sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE). At the end of the electrophoresis, the gels were sliced and injected in sequential order into various groups of A mice. It was found that some of the gel slices (usually with M.W. of 100 K or less) induced cytotoxic responses, whereas other gel slices (usually with M.W. of about 150 K) induced suppressor cells. Similarly, certain gel slices induced cells that inhibited the in vivo tumor growth, whereas others enhanced the in vivo tumor growth. These last two types of cells did not present the same cellular population that mediated the cellular cytotoxicity or the suppressive effects respectively. It was concluded that poorly immunogenic tumor cells do possess immunogenic potential that can be revealed after dissociation between the immunogenic and suppressogenic entities.
journal_name
Immunobiologyjournal_title
Immunobiologyauthors
Klein BY,Sharon R,Tarcic N,Naor Ddoi
10.1016/S0171-2985(82)80101-0subject
Has Abstractpub_date
1982-10-01 00:00:00pages
7-21issue
1eissn
0171-2985issn
1878-3279pii
S0171-2985(82)80101-0journal_volume
163pub_type
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