PUBLICATION

R-Fluoxetine Increases Melanin Synthesis Through a 5-HT1A/2A Receptor and p38 MAPK Signaling Pathways

Authors
Liu, L., Fu, M., Pei, S., Zhou, L., Shang, J.
ID
ZDB-PUB-181227-5
Date
2018
Source
International Journal of Molecular Sciences   20(1): (Journal)
Registered Authors
Shang, Jing
Keywords
melanin, r-fluoxetine, zebrafish
MeSH Terms
  • Animals
  • Cell Line, Tumor
  • Embryo, Nonmammalian/drug effects
  • Embryo, Nonmammalian/metabolism
  • Fluoxetine/pharmacology*
  • Melanins/metabolism*
  • Melanocytes/cytology
  • Melanocytes/drug effects
  • Melanocytes/metabolism
  • Mice
  • Microphthalmia-Associated Transcription Factor/metabolism
  • Monophenol Monooxygenase/metabolism
  • Phosphorylation/drug effects
  • Promoter Regions, Genetic
  • Receptor, Serotonin, 5-HT1A/metabolism
  • Receptor, Serotonin, 5-HT2A/metabolism
  • Selective Serotonin Reuptake Inhibitors/pharmacology*
  • Signal Transduction/drug effects*
  • Stereoisomerism
  • Up-Regulation/drug effects*
  • Zebrafish
  • Zebrafish Proteins/genetics
  • Zebrafish Proteins/metabolism
  • p38 Mitogen-Activated Protein Kinases/metabolism
PubMed
30585252 Full text @ Int. J. Mol. Sci.
Abstract
Fluoxetine, a member of the class of selective serotonin reuptake inhibitors, is a racemic mixture and has an anxiolytic effect in rodents. Previously, we have shown that fluoxetine can up-regulate melanin synthesis in B16F10 melanoma cells and normal human melanocytes (NMHM). However, the role of r-fluoxetine and s-fluoxetine, in the regulation of melanin synthesis, is still unknown. Here, we show how r-fluoxetine plays a critical role in fluoxetine enhancing melanogenesis, both in vivo and vitro, by up-regulating tyrosinase (TYR) and the microphthalmia-associated transcription factor (MITF) expression, whereas, s-fluoxetine does not show any effect in the vivo and vitro systems. In addition, we found that r-fluoxetine induced melanin synthesis through the serotonin1A receptor (5-HT1A) and serotonin 2A receptor (5-HT2A). Furthermore, r-fluoxetine increased the phosphorylation of p38 mitogen-activated protein kinase (p38 MAPK), without affecting the phosphorylation of extracellularly responsive kinase (ERK1/2) and c-Jun N-terminal kinase (JNK). These data suggest that r-fluoxetine may be used as a drug for skin hypopigmentation disorders.
Genes / Markers
Figures
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping