Natriuretic peptide receptors of type A in human neuroblastomas.
Functional natriuretic peptide receptors of type A (NPR-A) were detected in the human neuroblastoma NB-OK-1, SK-N-SH and SK-N-BE, but not the SH-SY5Y, cell lines. Also, NPR-A mRNA was detected in 19 of the 25 tumor neuroblastoma samples tested in this study. Five of the eight tumor neuroblastoma samples that were assayed for atrial natriuretic peptide (ANP) binding revealed the presence of ANP-binding sites. In the human neuroblastoma NB-OK-1 cell line, [(3)H] thymidine incorporation was increased in response to ANP, decreased in response to pituitary adenylate cyclase-activating polypeptide (PACAP-27), and the stimulatory effect of ANP was inhibited by PACAP-27. Tissue transglutaminase activity was decreased by ANP and PACAP-27, and their effects were additive. However, neither cell cycle phases, cell growth, or cell apoptosis were modified by ANP or PACAP-27 treatments.
Forgeur
A
A
Department of Biochemistry, Medical School, Université Libre de Bruxelles, Brussels, Belgium.
Willems
F
F
Winand
J
J
Robberecht
P
P
Delporte
C
C
D017209:Apoptosis / Q000187:drug effects; D009320:Atrial Natriuretic Factor / Q000494:pharmacology; D001932:Brain Neoplasms / Q000737:chemistry*; D002455:Cell Division / Q000187:drug effects; D002648:Child; D002675:Child, Preschool; D004789:Enzyme Activation / Q000187:drug effects; D005260:Female; D005434:Flow Cytometry; D015972:Gene Expression Regulation, Neoplastic; D006162:Guanylate Cyclase / Q000032:analysis / Q000235:genetics*; D006801:Humans; D007223:Infant; D008297:Male; D009447:Neuroblastoma / Q000737:chemistry*; D009479:Neuropeptides / Q000494:pharmacology; D018377:Neurotransmitter Agents / Q000494:pharmacology; D051219:Pituitary Adenylate Cyclase-Activating Polypeptide; D012333:RNA, Messenger / Q000032:analysis; D012334:RNA, Neoplasm / Q000032:analysis; D017461:Receptors, Atrial Natriuretic Factor / Q000032:analysis / Q000235:genetics*; D013936:Thymidine / Q000378:metabolism / Q000494:pharmacology; D011503:Transglutaminases / Q000378:metabolism; D014316:Tritium; D014407:Tumor Cells, Cultured / Q000166:cytology / Q000187:drug effects / Q000201:enzymology
C495401:ADCYAP1 protein, human; D009479:Neuropeptides; D018377:Neurotransmitter Agents; D051219:Pituitary Adenylate Cyclase-Activating Polypeptide; D012333:RNA, Messenger; D012334:RNA, Neoplasm; D014316:Tritium; D009320:Atrial Natriuretic Factor; D011503:Transglutaminases; D006162:Guanylate Cyclase; D017461:Receptors, Atrial Natriuretic Factor; C091715:atrial natriuretic factor receptor A; D013936:Thymidine