What question did this study set out to answer?

To determine the electrophysiological actions and tissue binding distribution of anti-idiotypic antibodies targeting serotonin receptors in the enteric nervous system.

March 1, 1994AJP Gastrointestinal and Liver Physiology

Analysis of the role of 5-HT in the enteric nervous system using anti-idiotopic antibodies to 5-HT receptors

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Authors

PWPaul R. WadeTakeda (United States)HTH. TamirUniversity of Bonn AKAnnette L. KirchgessnerQueens College, CUNY

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Implication

Experimental study demonstrates that anti-idiotypic antibodies mimic and inhibit multiple serotonin receptor subtypes in guinea pig enteric neurons, indicating their utility for gut neurobiology...

Key Points

To determine the electrophysiological actions and tissue binding distribution of anti-idiotypic antibodies targeting serotonin receptors in the enteric nervous system.
Assessed intracellular electrical membrane responses of guinea pig small intestine myenteric neurons to anti-idiotypic antibodies and selective 5-HT antagonists.
Tested cross-desensitization against exogenous 5-HT, carbachol, substance P, and electrical stimulus-evoked slow excitatory postsynaptic potentials.
Mapped antibody binding sites across enteric plexuses using immunocytochemistry combined with subtype-specific receptor blockers.
Initial antibody application reproduced 5-HT3-mediated rapid depolarization, 5-HT1P-mediated slow depolarization, and 5-HT1A-mediated hyperpolarization.
Prolonged antibody exposure produced cross-desensitization and selectively inhibited subsequent responses to 5-HT and stimulus-evoked slow EPSPs, while leaving carbachol and substance P responses intact.
Antibodies bound specifically to myenteric, submucosal, and subepithelial plexuses, with binding blocked by 5-HT1P, 5-HT3, and 5-HT4 antagonists.

Cite This Study

Wade et al. (1994) studied this question.

synapsesocial.com/papers/6a7264568031ec7bb1dd58bf https://doi.org/10.1152/ajpgi.1994.266.3.g403

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Implication

Experimental study demonstrates that anti-idiotypic antibodies mimic and inhibit multiple serotonin receptor subtypes in guinea pig enteric neurons, indicating their utility for gut neurobiology...

Analysis of the role of 5-HT in the enteric nervous system using anti-idiotopic antibodies to 5-HT receptors

Discussion

Member takes

Implication

Key Points

Cite This Study

Analysis of the role of 5-HT in the enteric nervous system using anti-idiotopic antibodies to 5-HT receptors

Discussion

Member takes

Implication

Key Points

Cite This Study

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