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Adv Pharm Bull. 2020;10(3): 437-443.
doi: 10.34172/apb.2020.053
PMID: 32665903
PMCID: PMC7335997
Scopus ID: 85087921592
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Research Article

The Effect of Beta-Boswellic Acid on the Expression of Camk4 and Camk2α Genes in the PC12 Cell Line

Asiyeh Jebelli 1 ORCID logo, Mohammad Khalaj-Kondori 1* ORCID logo, Mohammad Rahmati-Yamchi 2,3* ORCID logo

1 Department of Animal Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran.
2 Department of Clinical Biochemistry, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
3 Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
*Corresponding Authors: *Corresponding Authors: Mohammad Khalaj-Kondori and Mohammad Rahmati-Yamchi, Fax: +98 41 33364666, Email: and rahmati_bio@yahoo.com, Email: khalaj@tabrizu.ac.ir; Email: rahmati_bio@yahoo.com

Abstract

Purpose: Beta-boswellic acid (βBA) may play central roles in neural plasticity. Neural plasticity has significant implications for learning and memory which are governed by strict memoryrelated molecular pathways. To gain insight into the molecular mechanism by which βBA affects these pathways this study analyzed the expression patterns of Camk2α and Camk4 genes in PC12 cells treated with βBA.

Methods: The cytotoxic effects of different βBA concentrations on PC12 cells were examined by MTT assay. For gene expression analysis, cells were treated with concentrations of 1 and 10 µM of βBA for 12, 24, 48, and 72 hours. Total RNA was purified by RNX-Plus solution and reverse transcribed into cDNA using Thermo Scientific Reverse Transcription reagents. The expression patterns of Camk2α and Camk4 genes were quantified by quantitative reverse transcription polymerase chain reaction (qRT-PCR).

Results: MTT assay indicated that βBA reduced PC12 cell viability in a time- and concentrationdependent manner. The 50% inhibitory concentrations for the 48 and 72 hours time points were 35 and 26 µM, respectively; while, the βBA concentrations up to 100 µM failed to kill 50% of the cells after 24 hours. According to the qRT-PCR data, the Camk2α variant is not expressed in either βBA-treated or untreated PC12 cells. However, a significant upregulation was observed in Camk4 after 12 hours of treatment with βBA, which followed by a significant downregulation after 24 hours and a persistent expression equal to the control until 72 hours.

Conclusion: these findings indicate that PC12 cells not only does not express Camk2α but also its expression cannot be induced by βBA. However, βBA does modulate the expression of Camk4. This result provides further insight into the molecular mechanism by which βBA affects memory.

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Submitted: 17 Sep 2019
Revision: 28 Nov 2019
Accepted: 08 Dec 2019
ePublished: 11 May 2020
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