Abstract:
:Fibroblast growth factor (FGF)-23 was identified as a causative factor of tumor-induced osteomalacia and also as a responsible gene for autosomal dominant hypophosphatemic rickets. To clarify the pathophysiological roles of FGF-23 in these diseases, we generated its transgenic mice. The transgenic mice expressing human FGF-23 reproduced the common clinical features of these diseases such as hypophosphatemia probably due to increased renal phosphate wasting, inappropriately low serum 1,25-dihydroxyvitamin D level, and rachitic bone. The renal phosphate wasting in the transgenic mice was accompanied by the reduced expression of sodium phosphate cotransporter type IIa in renal proximal tubules. These results reinforce the notion that the excessive action of FGF-23 plays a causative role in the development of several hypophosphatemic rickets/osteomalacia.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Shimada T,Urakawa I,Yamazaki Y,Hasegawa H,Hino R,Yoneya T,Takeuchi Y,Fujita T,Fukumoto S,Yamashita Tdoi
10.1016/j.bbrc.2003.12.102subject
Has Abstractpub_date
2004-02-06 00:00:00pages
409-14issue
2eissn
0006-291Xissn
1090-2104pii
S0006291X03026378journal_volume
314pub_type
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