Immunohistochemical Modifications of “B Cells” in Experimentally-induced Pancreatic Cancer — Correlation with Serum Insulin Values

1990 
: In pancreatic ductal adenocarcinoma induced in the Syrian hamster by N-nitrosobis (2-oxopropyl) amine (Bop) B cells persisted with focal dispersion in the tumor zone. The localization of these varied depending on whether the animals had initial or long standing tumors. In the animals with initial tumors, immunohistochemical techniques indicated the B cells formed part of the tumoral glands and/or were intimately related to the cells of the walls of the tumor glands or present in the stroma. Insulin values were high in these animals. In the longer-developed tumors, insulin levels tended to be lower and although B cells were seen forming part of the tumor glands, those in the tumoral stroma were predominant.
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