Role of thyroid transcription factor-1 in transcriptional regulation of heme oxygenase-1
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
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Detail(s)
Original language | English |
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Pages (from-to) | 147-152 |
Journal / Publication | Biochemical and Biophysical Research Communications |
Volume | 496 |
Issue number | 1 |
Online published | 4 Jan 2018 |
Publication status | Published - 29 Jan 2018 |
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Abstract
Here, we report thyroid transcription factor 1 (TTF-1) as an important transcription factor for the expression of heme oxygenase-1 (HO-1). HO-1 is a well-known cytoprotective enzyme against inflammation. We observed that HO-1 co-expressed with TTF-1 in mouse hypothalamic cells. Results from luciferase and chromatin immunoprecipitation assays revealed that TTF-1 directly activated HO-1 transcription by binding to binding domains in the 5'-flanking region of the HO-1 gene. A proinflammatory cytokine, tumor necrosis factor-alpha (TNF-α), induced nuclear translocation of TTF-1 and increased binding affinity of TTF-1 to its binding sites on the HO-1 gene. HO-1 mRNA increased with TTF-1 overexpression but decreased with RNA interference of TTF-1 expression in rat astroglial C6 cells. Together with results showing involvement of TTF-1 in the TNF-α-induced increase in interleukin 1 beta and monocyte chemotactic protein 1 production, this study suggests that TTF-1 plays an important role in the mouse hypothalamus TNF-α-induced inflammatory response for regulating HO-1 gene expression.
Research Area(s)
- Astroglial activation, Heme oxygenase-1, Hypothalamic inflammation, Thyroid transcription factor-1
Citation Format(s)
Role of thyroid transcription factor-1 in transcriptional regulation of heme oxygenase-1. / Jeong, Bora; Kim, Han Rae; Choi, Nan Seong et al.
In: Biochemical and Biophysical Research Communications, Vol. 496, No. 1, 29.01.2018, p. 147-152.
In: Biochemical and Biophysical Research Communications, Vol. 496, No. 1, 29.01.2018, p. 147-152.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review