[Effects of anti-tissue immune sera on the contractile response of cells isolated from smooth muscle of the pyloric antrum].

The effect of anti-tissue antisera on the contractile response of isolated smooth muscle cells from rabbit antrum has been investigated. Anti-stomach (SAE), anti-colon (SAC) and anti-diencephale (SAD) antisera induced a dose-dependent contraction is isolated cells, whereas both non-immune serum and antisera obtained by immunization with other foetal tissues were ineffective. Proglumide, the well known gastrin antagonist, similarly inhibited both gastrin- and SAE, SAC, SAD antisera-induced contraction of isolated smooth muscle cells.