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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Identification of human low-density lipoprotein receptor as a novel target gene regulated by liver X receptor alpha.

Liver X receptor alpha (LXRalpha) is a member of the nuclear receptor superfamily that is activated by oxysterols, and plays a pivotal role in regulating the metabolism, transport and uptake of cholesterol. Here, we demonstrate that LXRalpha also regulates the low-density lipoprotein receptor (LDLR) gene, which mediates the endocytic uptake of LDL cholesterol in the liver. An LXR agonist induced the expression of LDLR in cultured hepatoblastoma cells. Moreover, the LDLR promoter contained an LXR response element that was recognized by LXRalpha/RXRalpha (retinoid X receptor alpha) heterodimers in hepatoblastoma cells. These results suggest a novel pathway whereby LXRalpha might modulate cholesterol metabolism.[1]

References

  1. Identification of human low-density lipoprotein receptor as a novel target gene regulated by liver X receptor alpha. Ishimoto, K., Tachibana, K., Sumitomo, M., Omote, S., Hanano, I., Yamasaki, D., Watanabe, Y., Tanaka, T., Hamakubo, T., Sakai, J., Kodama, T., Doi, T. FEBS Lett. (2006) [Pubmed]
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