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Human nesidioblastosis tissue as an immunogen for generation of islet cell specific monoclonal antibodies
K D Gerbitz1, B Boenke, A Paprotta
1Institut für Klinische Chemie und Forschergruppe Diabetes, Städt, Krankenhaus München-Schwabing.
Nesidioblastosis pancreas was used as an immunogen in BALB/c-mice to generate monoclonal antibodies against structures of human islet cells. Seven clones were selected by screening 311 growing hybridomas for reactivity with the rat insulinoma cell line, RIN m5F, and with cryostat sections from human pancreas. None of the selected clones reacted with pancreatic hormones or endocrine-specific peptides. Monoclonal antibodies cross-reacting with the RIN-cell line also bound to different endocrine organs or cell lines, while some RIN-cell-negative clones bound only to Langerhans islets from human pancreas.
Nesidioblastosis pancreas was used as an immunogen in BALB/c-mice to generate monoclonal antibodies against structures of human islet cells. Seven clones were selected by screening 311 growing hybridomas for reactivity with the rat insulinoma cell line, RIN m5F, and with cryostat sections from human pancreas. None of the selected clones reacted with pancreatic hormones or endocrine-specific peptides. Monoclonal antibodies cross-reacting with the RIN-cell line also bound to different endocrine organs or cell lines, while some RIN-cell-negative clones bound only to Langerhans islets from human pancreas.