Abstract
Chlorpromazine is a phenothiazine with a structure similar to that of methylene blue. Since methylene blue is a well known inhibitor of nitric oxideinduced cyclic GMP accumulation, we investigated whether chlorpromazine had the same effect. Cyclic GMP accumulation, induced in a mouse teratocarcinoma cell line (P19) by sodium nitroprusside (a nitric oxide releasing agent), was inhibited by both methylene blue (IC50 0.34 μM) and chlorpromazine (IC50 35 μM). Chlorpromazine's action was probably directed specifically at soluble guanylate cyclase, since the drug had no effect on ADP-ribosylation in rat hippocampus, another nitric oxide-affected, but cGMP-independent event.
Original language | English |
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Pages (from-to) | 287-290 |
Number of pages | 4 |
Journal | Inflammation Research |
Volume | 44 |
Issue number | 7 |
DOIs | |
Publication status | Published - Jul 1995 |
Keywords
- ADP-Ribosylation
- Methylene blue
- P19 cells
- Phenothiazines
- Soluble guanylyl cyclase
ASJC Scopus subject areas
- Toxicology
- Pharmacology (medical)
- Immunology
- Cell Biology