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Article

HSF2 autoregulates its own transcription

  • Authors:
    • Seon-Mi Park
    • Soo-A Kim
    • Sang-Gun Ahn
  • View Affiliations / Copyright

    Affiliations: Department of Pathology, College of Dentistry, Chosun University, Gwangju 501-759, Republic of Korea, Department of Biochemistry, Dongguk University College of Oriental Medicine, Gyeongju, Gyeongsangbuk-do 780-714, Republic of Korea
  • Pages: 1173-1179
    |
    Published online on: August 11, 2015
       https://doi.org/10.3892/ijmm.2015.2309
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Abstract

Heat shock factor 2 (HSF2) is one of the most important regulators affecting stress mechanisms, and is frequently amplified in the ubiquitin proteasome pathway. Despite its significance, the mechanisms which regulate HSF2 expression remain unclear. In the present study, we describe the existence of a negative autoregulatory mechanism of HSF2. Transfection assays demonstrated that HSF2 decreased endogenous HSF2 mRNA expression in human K562 erythroleukemia cells. Luciferase reporter assays revealed that HSF2 inhibited the activity of its own promoter in a dose-dependent manner and that the downstream region (-1.5 kb) relative to the transcription start site was responsible for this inhibitory effect. Furthermore, chromatin immunoprecipitation (ChIP) assat indicated that HSF2 is directly recruited onto its own promoter, which contains a putative heat shock element (HSE). Collectively, the findings of our studys suggest that HSF2 contributes to its own expression by forming a negative autoregulatory loop.
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Copy and paste a formatted citation
Spandidos Publications style
Park S, Kim S and Ahn S: HSF2 autoregulates its own transcription. Int J Mol Med 36: 1173-1179, 2015.
APA
Park, S., Kim, S., & Ahn, S. (2015). HSF2 autoregulates its own transcription. International Journal of Molecular Medicine, 36, 1173-1179. https://doi.org/10.3892/ijmm.2015.2309
MLA
Park, S., Kim, S., Ahn, S."HSF2 autoregulates its own transcription". International Journal of Molecular Medicine 36.4 (2015): 1173-1179.
Chicago
Park, S., Kim, S., Ahn, S."HSF2 autoregulates its own transcription". International Journal of Molecular Medicine 36, no. 4 (2015): 1173-1179. https://doi.org/10.3892/ijmm.2015.2309
Copy and paste a formatted citation
x
Spandidos Publications style
Park S, Kim S and Ahn S: HSF2 autoregulates its own transcription. Int J Mol Med 36: 1173-1179, 2015.
APA
Park, S., Kim, S., & Ahn, S. (2015). HSF2 autoregulates its own transcription. International Journal of Molecular Medicine, 36, 1173-1179. https://doi.org/10.3892/ijmm.2015.2309
MLA
Park, S., Kim, S., Ahn, S."HSF2 autoregulates its own transcription". International Journal of Molecular Medicine 36.4 (2015): 1173-1179.
Chicago
Park, S., Kim, S., Ahn, S."HSF2 autoregulates its own transcription". International Journal of Molecular Medicine 36, no. 4 (2015): 1173-1179. https://doi.org/10.3892/ijmm.2015.2309
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