Gastrin/CCK-like immunoreactivity in the nervous system of coelenterates
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Gastrin/CCK-like immunoreactivity in the nervous system of coelenterates. / Grimmelikhuijzen, C J; Sundler, F; Rehfeld, J F.
I: Histochemistry, Bind 69, Nr. 1, 01.01.1980, s. 61-8.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Gastrin/CCK-like immunoreactivity in the nervous system of coelenterates
AU - Grimmelikhuijzen, C J
AU - Sundler, F
AU - Rehfeld, J F
PY - 1980/1/1
Y1 - 1980/1/1
N2 - Using immunocytochemistry, gastrin/CCK-like immunoreactivity is found in sensory nerve cells in the ectoderm of the mouth region of hydra and in nerve cells in the endoderm of all body regions of the sea anemone tealia. These results are corroborated by radioimmunoassay: One hydra contains at least 5 fmole and one tealia at least 2 nmole gastrin/CCK-like immunoreactivity. Reactivities towards gastrin and CCK antisera with different specificities suggest that the coelenterate gastrin/CCK-like peptide contains the C-terminal amino-acid sequence common to mammalian gastrin and CCK. In addition the radioimmunochemical data indicate that the coelenterate peptide also contains an amino-acid sequence that resembles the sequence 20-30 of porcine CCK-33, but that no other sequences of gastrin are present. Thus, it is probably more CCK-like than gastrin-like.
AB - Using immunocytochemistry, gastrin/CCK-like immunoreactivity is found in sensory nerve cells in the ectoderm of the mouth region of hydra and in nerve cells in the endoderm of all body regions of the sea anemone tealia. These results are corroborated by radioimmunoassay: One hydra contains at least 5 fmole and one tealia at least 2 nmole gastrin/CCK-like immunoreactivity. Reactivities towards gastrin and CCK antisera with different specificities suggest that the coelenterate gastrin/CCK-like peptide contains the C-terminal amino-acid sequence common to mammalian gastrin and CCK. In addition the radioimmunochemical data indicate that the coelenterate peptide also contains an amino-acid sequence that resembles the sequence 20-30 of porcine CCK-33, but that no other sequences of gastrin are present. Thus, it is probably more CCK-like than gastrin-like.
KW - Animals
KW - Cholecystokinin
KW - Cnidaria
KW - Gastrins
KW - Histocytochemistry
KW - Hydra
KW - Immunologic Techniques
KW - Nervous System
KW - Neurons
KW - Sea Anemones
M3 - Journal article
C2 - 6108304
VL - 69
SP - 61
EP - 68
JO - Histochemistry
JF - Histochemistry
SN - 0301-5564
IS - 1
ER -
ID: 33514980