کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1930404 1050510 2011 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Regulated production of the pituitary hormone oxytocin from murine and human osteoblasts
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی زیست شیمی
پیش نمایش صفحه اول مقاله
Regulated production of the pituitary hormone oxytocin from murine and human osteoblasts
چکیده انگلیسی

Oxytocin (OT) is a primitive neurohypophyseal hormone that plays a primary and indispensible role in mammalian lactation. We have shown recently that OT also regulates bone remodeling, mainly bone formation, with remarkable sensitivity. We now show that OT, apart from its neurohypophyseal origin, is produced in abundance by both human and murine osteoblasts. Production of osteoblast OT is under the control of estrogen, which acts by activating the MAP kinase Erk. This non-genomic mechanism of estrogen action is in stark contrast to its genomic control of OT receptor (OTR) expression. We surmise that there is a local feed-forward loop in bone marrow through which the OT so produced from osteoblasts in response to estrogen acts upon its receptor to exert a potent anabolic action.


► The pituitary hormone oxytocin is produced by osteoblasts.
► Osteoblasts possess oxytocin receptors.
► Oxytocin is a skeletal anabolic hormone.
► Estrogen stimulates oxytocin production from osteoblasts.
► There is a short feed-forward loop through which estrogen regulates oxytocin production in bone marrow.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biochemical and Biophysical Research Communications - Volume 411, Issue 3, 5 August 2011, Pages 512–515
نویسندگان
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