Skip to main content

Advertisement

Log in

Inhibition of melanin production by sesquiterpene lactones from Saussurea lappa and their analogues

  • Original Research
  • Published:
Medicinal Chemistry Research Aims and scope Submit manuscript

Abstract

This research is aimed towards the discovery of a novel skin whitening agent from sesquiterpene lactones. We screened nine sesquiterpene lactones from Saussurea lappa root extracts, costunolide (1), α-, β-, γ-cyclocostunolides (2, 3, 4), santamarine (5), reynosin (6), arbuscirin A (7), dehydrocostus lactone (8), and 11β, 13-dehydrocostus lactone (9), for their melanin inhibitory activity in B16 melanoma cells. This study was focused on the inhibition of the extracellular melanin content. The screening results revealed that only α-cyclocostunolide (2) showed notable inhibition of the melanin production, particularly the extracellular melanin content, with an IC50 value of 5.75 μM. In addition, structure-activity relationship (SAR) of 12 sesquiterpene lactone analogues with reference to their melanin inhibitory activity was also investigated. However, none of the analogues were found to show any significant melanin inhibitory activity. To the best of our knowledge the above study is the first SAR investigation involving the melanin inhibitory activity of sesquiterpene lactones. It established that eudesmanolide-type lactone having a double bond between C3 and C4 showed the most efficient melanin inhibition. Additionally, the presence of a hydroxyl, ketone or ester moiety as the C1-substituent markedly decreased the melanin inhibitory activity. Thus, these findings suggest that α-cyclocostunolide (2) might be useful in the therapy of skin disorders.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4

Similar content being viewed by others

References

Download references

Acknowledgements

SC greatly acknowledges the MEXT (MONBUKAGAKUSHO) scholarship provided by the Japanese Government for conducting research at the United Graduate School of Agricultural Science, Gifu University.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Tohru Mitsunaga.

Ethics declarations

Conflict of interest

The authors declare that they have no conflict of interest.

Additional information

Publisher’s note: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Choodej, S., Pudhom, K., Yamauchi, K. et al. Inhibition of melanin production by sesquiterpene lactones from Saussurea lappa and their analogues. Med Chem Res 28, 857–862 (2019). https://doi.org/10.1007/s00044-019-02338-0

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00044-019-02338-0

Keywords

Navigation