Cooperation between ARID3A and p53 in the transcriptional activation of p21WAF1 in response to DNA damage

ARID3A/DRIL1/Bright is a family member of AT rich interaction domain (ARID) DNA-binding proteins that involve in diverse biological processes. We have reported that p53 activates ARID3A transcription, and ARID3A overexpression induced G1 arrest. However, a role of ARID3A in the p53 pathway remains u...

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Main Authors: Lestari, Widya, Arief Ichwan, Solachuddin Jauhari
Format: Proceeding Paper
Language:English
Published: 2013
Subjects:
Online Access:http://irep.iium.edu.my/36693/
http://irep.iium.edu.my/36693/1/36693.pdf
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author Lestari, Widya
Arief Ichwan, Solachuddin Jauhari
author_facet Lestari, Widya
Arief Ichwan, Solachuddin Jauhari
author_sort Lestari, Widya
building IIUM Repository
collection Online Access
description ARID3A/DRIL1/Bright is a family member of AT rich interaction domain (ARID) DNA-binding proteins that involve in diverse biological processes. We have reported that p53 activates ARID3A transcription, and ARID3A overexpression induced G1 arrest. However, a role of ARID3A in the p53 pathway remains unclear. Here, ‘we show that ARID3A cooperates with p53 to transcriptionally activate p21WAF1, a p53-target gene important for cell-cycle arrest. ARID3A bound to its binding sites in the p21WAF1 promoter in vivo and in vitro, and induced p21WAF1 transcription in U2OS cells expressing wild-type p53 but not Saos-2 cells lacking p53. Co-expression of ARID3A with p53 cooperates to activate p21WAF1 transcription and the stably transfected p21WAF1 promoter. Mutation of the ARID3A binding sites reduced the p21WAF1 promoter activity, and siRNA-based ARID3A knockdown suppressed transcription of p21WAF1 but not proapoptotic NOXA and PUMA in response to DNA damage. Furthermore, p53 knockdown decreased ARID3A transcription, and, conversely, ARID3A overexpression or knockdown resulted in an increase or decrease in p53 stability, respectively. These results indicate cooperative and interdependent roles for ARID3A and p53 in transcriptional activation of p21WAF1 in response to DNA damage.
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format Proceeding Paper
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institution International Islamic University Malaysia
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language English
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publishDate 2013
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spelling iium-366932015-05-12T03:06:54Z http://irep.iium.edu.my/36693/ Cooperation between ARID3A and p53 in the transcriptional activation of p21WAF1 in response to DNA damage Lestari, Widya Arief Ichwan, Solachuddin Jauhari RK Dentistry ARID3A/DRIL1/Bright is a family member of AT rich interaction domain (ARID) DNA-binding proteins that involve in diverse biological processes. We have reported that p53 activates ARID3A transcription, and ARID3A overexpression induced G1 arrest. However, a role of ARID3A in the p53 pathway remains unclear. Here, ‘we show that ARID3A cooperates with p53 to transcriptionally activate p21WAF1, a p53-target gene important for cell-cycle arrest. ARID3A bound to its binding sites in the p21WAF1 promoter in vivo and in vitro, and induced p21WAF1 transcription in U2OS cells expressing wild-type p53 but not Saos-2 cells lacking p53. Co-expression of ARID3A with p53 cooperates to activate p21WAF1 transcription and the stably transfected p21WAF1 promoter. Mutation of the ARID3A binding sites reduced the p21WAF1 promoter activity, and siRNA-based ARID3A knockdown suppressed transcription of p21WAF1 but not proapoptotic NOXA and PUMA in response to DNA damage. Furthermore, p53 knockdown decreased ARID3A transcription, and, conversely, ARID3A overexpression or knockdown resulted in an increase or decrease in p53 stability, respectively. These results indicate cooperative and interdependent roles for ARID3A and p53 in transcriptional activation of p21WAF1 in response to DNA damage. 2013 Proceeding Paper PeerReviewed application/pdf en http://irep.iium.edu.my/36693/1/36693.pdf Lestari, Widya and Arief Ichwan, Solachuddin Jauhari (2013) Cooperation between ARID3A and p53 in the transcriptional activation of p21WAF1 in response to DNA damage. In: IIUM Research, Invention and Innovation Exhibition (IRIIE) 2013, 19-20th February 2013, Cultural Activity Centre (CAC) and KAED Gallery, IIUM. (Unpublished)
spellingShingle RK Dentistry
Lestari, Widya
Arief Ichwan, Solachuddin Jauhari
Cooperation between ARID3A and p53 in the transcriptional activation of p21WAF1 in response to DNA damage
title Cooperation between ARID3A and p53 in the transcriptional activation of p21WAF1 in response to DNA damage
title_full Cooperation between ARID3A and p53 in the transcriptional activation of p21WAF1 in response to DNA damage
title_fullStr Cooperation between ARID3A and p53 in the transcriptional activation of p21WAF1 in response to DNA damage
title_full_unstemmed Cooperation between ARID3A and p53 in the transcriptional activation of p21WAF1 in response to DNA damage
title_short Cooperation between ARID3A and p53 in the transcriptional activation of p21WAF1 in response to DNA damage
title_sort cooperation between arid3a and p53 in the transcriptional activation of p21waf1 in response to dna damage
topic RK Dentistry
url http://irep.iium.edu.my/36693/
http://irep.iium.edu.my/36693/1/36693.pdf