کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5690950 | 1410089 | 2017 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Klotho expression in osteocytes regulates bone metabolism and controls bone formation
ترجمه فارسی عنوان
بیان کلوتو در استئوسیت ها، متابولیسم استخوان را تنظیم می کند و کنترل استخوان را کنترل می کند
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موضوعات مرتبط
علوم پزشکی و سلامت
پزشکی و دندانپزشکی
بیماریهای کلیوی
چکیده انگلیسی
Osteocytes within the mineralized bone matrix control bone remodeling by regulating osteoblast and osteoclast activity. Osteocytes express the aging suppressor Klotho, but the functional role of this protein in skeletal homeostasis is unknown. Here we identify Klotho expression in osteocytes as a potent regulator of bone formation and bone mass. Targeted deletion of Klotho from osteocytes led to a striking increase in bone formation and bone volume coupled with enhanced osteoblast activity, in sharp contrast to what is observed in Klotho hypomorphic (kl/kl) mice. Conversely, overexpression of Klotho in cultured osteoblastic cells inhibited mineralization and osteogenic activity during osteocyte differentiation. Further, the induction of chronic kidney disease with high-turnover renal osteodystrophy led to downregulation of Klotho in bone cells. This appeared to offset the skeletal impact of osteocyte-targeted Klotho deletion. Thus, our findings establish a key role of osteocyte-expressed Klotho in regulating bone metabolism and indicate a new mechanism by which osteocytes control bone formation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Kidney International - Volume 92, Issue 3, September 2017, Pages 599-611
Journal: Kidney International - Volume 92, Issue 3, September 2017, Pages 599-611
نویسندگان
Hirotaka Komaba, Jovana Kaludjerovic, Dorothy Z. Hu, Kenichi Nagano, Katsuhiko Amano, Noriko Ide, Tadatoshi Sato, Michael J. Densmore, Jun-ichi Hanai, Hannes Olauson, Teresita Bellido, Tobias E. Larsson, Roland Baron, Beate Lanske,