Glucuronic acid is a novel inducer of heat shock response

Young-Mee Kim, Hee Jung Kim, Eun Joo Song, Kong Joo Lee

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

The elevated expression of 70 kDa heat shock protein (Hsp70) induces resistance to stress-induced apoptosis. We have screened a variety of natural products for their ability to enhance Hsp70 expression as anti-apoptotic agent. We found that glucuronic acid (GA) induced the synthesis of Hsp70 and that cells pretreated with GA were significantly tolerant to stress including heat shock and hydrogen peroxide. We also found that GA induces the production of reactive oxygen species (ROS), a process inhibited by NADPH oxidase inhibitor, diphenyleneiodonium chloride (DPI) and antioxidant N-acetylcysteine (NAC). GA-induced ROS production was also inhibited in RacN17 cell line overexpressing a dominant negative mutant of Rac1. Furthermore, GA treatment induces MAPKs activation (SAPK/JNK and p38) and Hsp70 expression in ROS dependent manner, suggesting that GA turns on the signaling pathway by generation of ROS through Rac1. We analyzed the profiles of newly synthesized proteins by GA with 2-dimensional gel electrophoresis and MALDI-TOF MS and found that two families of proteins were expressed by GA. One was similar to the protein family synthesized by heat shock (Hsp70, Hsp73, Hsp65, Hsp90, vimentin, tubulin, Ras homolog); and the other was a family of protein specific to GA (calreticulin, annexin III, thioredoxin peroxidase). These results suggest that GA-induced stress responses are mediated by ROS generation and are similar, in part, to heat shock-induced responses and GA can be possibly adopted for the protecting agent from cell death.

Original languageEnglish (US)
Pages (from-to)23-33
Number of pages11
JournalMolecular and Cellular Biochemistry
Volume259
Issue number1-2
DOIs
StatePublished - Apr 1 2004

Fingerprint

Heat-Shock Response
Glucuronic Acid
Reactive Oxygen Species
Annexin A3
Shock
Proteins
Hot Temperature
Calreticulin
Peroxiredoxins
HSP70 Heat-Shock Proteins
NADPH Oxidase
Matrix-Assisted Laser Desorption-Ionization Mass Spectrometry
Acetylcysteine
p38 Mitogen-Activated Protein Kinases
Vimentin
Cell death
Tubulin
Biological Products
Electrophoresis
Hydrogen Peroxide

Keywords

  • Glucuronic acid
  • Heat shock protein
  • MALDI-TOF MS
  • MAPK
  • Protein overexpression
  • Proteomics
  • Rac1
  • Reactive oxygen species

ASJC Scopus subject areas

  • Molecular Biology
  • Clinical Biochemistry
  • Cell Biology

Cite this

Glucuronic acid is a novel inducer of heat shock response. / Kim, Young-Mee; Kim, Hee Jung; Song, Eun Joo; Lee, Kong Joo.

In: Molecular and Cellular Biochemistry, Vol. 259, No. 1-2, 01.04.2004, p. 23-33.

Research output: Contribution to journalArticle

Kim, Young-Mee ; Kim, Hee Jung ; Song, Eun Joo ; Lee, Kong Joo. / Glucuronic acid is a novel inducer of heat shock response. In: Molecular and Cellular Biochemistry. 2004 ; Vol. 259, No. 1-2. pp. 23-33.
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