Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UNIPROT:P20366 (substance P)
 21,176 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

This investigation was performed to determine whether antisera raised against microtubule-associated proteins, i.e. MAP1 and MAP2, may constitute an alternative to the silver-impregnation studies for the identification of the distinct morphological enteric neuronal cell types in the porcine small intestine. MAP1-immunostaining seems less suited since it preferentially stains the neuronal somata and axons and hardly permits to observe the dendritic processes. MAP2-immunostaining chiefly visualizes the perikaryal-dendritic domain and the proximal part of the axonal processes in the enteric neurons of the porcine gut. Hence, MAP2-immunostaining enables for the first time the unambiguous immunocytochemical identification of enteric multi(short)dendritic uniaxonal type I neurons. Double labelling techniques using antisera against MAP2 and substance P indicate that part of the type I neurons in the myenteric plexus of the porcine small intestine, which are taking part in an ascending pathway, are substance P-immunoreactive, whereas the substance P/neuromedin U-minineurons in the Meissner's plexus do not stain for MAP2. We may conclude that, although MAP2-immunostaining falls short of the quality achieved with silver-impregnation, the possibility to combine MAP2-immunostaining with neuropeptide immunocytochemistry to study the intestinal neurons has the advantage that part of the enteric neuron types stained with a distinct neurotransmitter or neuromodulator can be classified morphologically.
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PMID:Immunohistochemical visualization of the nervous system in the porcine small intestine using antisera raised against the cytoskeletal proteins MAP1 and MAP2, in combination with neuropeptide immunocytochemistry. 172 68