Alkannin, HSP70 inducer, protects against UVB-induced apoptosis in human keratinocytes.

Alkannin is an active constituent from the root extract of Alkanna tinctoria of the Boraginaceae family and it may have utility as a heat shock protein 70 (HSP70) inducer in living organisms. Here, the effects of alkannin-induced HSP70 on ultraviolet (UV) B (40 mJ/cm(2))-induced apoptosis were inves...

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Main Authors: Yoko Yoshihisa, Mariame Ali Hassan, Yukihiro Furusawa, Yoshiaki Tabuchi, Takashi Kondo, Tadamichi Shimizu
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2012-01-01
Series:PLoS ONE
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23110127/?tool=EBI
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author Yoko Yoshihisa
Mariame Ali Hassan
Yukihiro Furusawa
Yoshiaki Tabuchi
Takashi Kondo
Tadamichi Shimizu
author_facet Yoko Yoshihisa
Mariame Ali Hassan
Yukihiro Furusawa
Yoshiaki Tabuchi
Takashi Kondo
Tadamichi Shimizu
author_sort Yoko Yoshihisa
collection DOAJ
description Alkannin is an active constituent from the root extract of Alkanna tinctoria of the Boraginaceae family and it may have utility as a heat shock protein 70 (HSP70) inducer in living organisms. Here, the effects of alkannin-induced HSP70 on ultraviolet (UV) B (40 mJ/cm(2))-induced apoptosis were investigated in human keratinocyte HaCaT cells. Pretreatment of cells with alkannin (1 µM) caused significant inhibition of UVB-induced apoptosis and caspase-3 cleavage. On the other hand, the addition of KNK437 (HSP70 inhibitor) reversed the action of alkannin increasing UVB-induced apoptosis in a dose-dependent manner. In addition, differences in gene expression associated with the suppression of UVB-induced apoptosis in the presence of alkannin were investigated using Gene Chip assay. Our results indicate that alkannin suppresses UVB-induced apoptosis through the induction of HSP70 in human keratinocytes, and therefore, we suggest the usefulness of using alkannin as an antiaging agent.
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spelling doaj.art-6a6ed1781b33464183861b70e6b6ce1c2022-12-21T23:11:14ZengPublic Library of Science (PLoS)PLoS ONE1932-62032012-01-01710e4790310.1371/journal.pone.0047903Alkannin, HSP70 inducer, protects against UVB-induced apoptosis in human keratinocytes.Yoko YoshihisaMariame Ali HassanYukihiro FurusawaYoshiaki TabuchiTakashi KondoTadamichi ShimizuAlkannin is an active constituent from the root extract of Alkanna tinctoria of the Boraginaceae family and it may have utility as a heat shock protein 70 (HSP70) inducer in living organisms. Here, the effects of alkannin-induced HSP70 on ultraviolet (UV) B (40 mJ/cm(2))-induced apoptosis were investigated in human keratinocyte HaCaT cells. Pretreatment of cells with alkannin (1 µM) caused significant inhibition of UVB-induced apoptosis and caspase-3 cleavage. On the other hand, the addition of KNK437 (HSP70 inhibitor) reversed the action of alkannin increasing UVB-induced apoptosis in a dose-dependent manner. In addition, differences in gene expression associated with the suppression of UVB-induced apoptosis in the presence of alkannin were investigated using Gene Chip assay. Our results indicate that alkannin suppresses UVB-induced apoptosis through the induction of HSP70 in human keratinocytes, and therefore, we suggest the usefulness of using alkannin as an antiaging agent.https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23110127/?tool=EBI
spellingShingle Yoko Yoshihisa
Mariame Ali Hassan
Yukihiro Furusawa
Yoshiaki Tabuchi
Takashi Kondo
Tadamichi Shimizu
Alkannin, HSP70 inducer, protects against UVB-induced apoptosis in human keratinocytes.
PLoS ONE
title Alkannin, HSP70 inducer, protects against UVB-induced apoptosis in human keratinocytes.
title_full Alkannin, HSP70 inducer, protects against UVB-induced apoptosis in human keratinocytes.
title_fullStr Alkannin, HSP70 inducer, protects against UVB-induced apoptosis in human keratinocytes.
title_full_unstemmed Alkannin, HSP70 inducer, protects against UVB-induced apoptosis in human keratinocytes.
title_short Alkannin, HSP70 inducer, protects against UVB-induced apoptosis in human keratinocytes.
title_sort alkannin hsp70 inducer protects against uvb induced apoptosis in human keratinocytes
url https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23110127/?tool=EBI
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AT yukihirofurusawa alkanninhsp70inducerprotectsagainstuvbinducedapoptosisinhumankeratinocytes
AT yoshiakitabuchi alkanninhsp70inducerprotectsagainstuvbinducedapoptosisinhumankeratinocytes
AT takashikondo alkanninhsp70inducerprotectsagainstuvbinducedapoptosisinhumankeratinocytes
AT tadamichishimizu alkanninhsp70inducerprotectsagainstuvbinducedapoptosisinhumankeratinocytes