Postnatal loss of the insulin receptor in osteoprogenitor cells does not impart a metabolic phenotype.
Postnatal loss of the insulin receptor in osteoprogenitor cells does not impart a metabolic phenotype.
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出生后骨祖细胞中胰岛素受体的丧失不会赋予代谢表型。
DOI:
10.1038/s41598-020-65717-3
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发表时间:
2020
影响因子:
4.6
通讯作者:
Thrailkill,KathrynM
中科院分区:
文献类型:
--
作者:
Fowlkes,JohnL;ClayBunn,R;Kalaitzoglou,Evangelia;Ray,Phil;Popescu,Iuliana;Thrailkill,KathrynM
The relationship between osteoblast-specific insulin signaling, osteocalcin activation and gluco-metabolic homeostasis has proven to be complex and potentially inconsistent across animal-model systems and in humans. Moreover, the impact of postnatally acquired, osteoblast-specific insulin deficiency on the pancreas-to-skeleton-to-pancreas circuit has not been studied. To explore this relationship, we created a model of postnatal elimination of insulin signaling in osteoprogenitors. Osteoprogenitor-selective ablation of the insulin receptor was induced after ~10 weeks of age in IRl°x/lox/Osx-Cre+/−genotypic male and female mice (designated postnatal-OIRKO). At ~21 weeks of age, mice were then phenotypically and metabolically characterized. Postnatal-OIRKO mice demonstrated a significant reduction in circulating concentrations of undercarboxylated osteocalcin (ucOC), in both males and females compared with control littermates. However, no differences were observed between postnatal-OIRKO and control mice in: body composition (lean or fat mass); fasting serum insulin; HbA1c; glucose dynamics during glucose tolerance testing; or in pancreatic islet area or islet morphology, demonstrating that while ucOC is impacted by insulin signaling in osteoprogenitors, there appears to be little to no relationship between osteocalcin, or its derivative (ucOC), and glucose homeostasis in this model.
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DOI:
--
发表时间:
1987
期刊:
Journal of Pharmacy and Science
影响因子:
--
作者:
M. S. McCracken;M. Sammons
通讯作者:
M. Sammons
影响因子:
2.9
作者:
GOORMAGHTIGH, E;SCARBOROUGH, GA
通讯作者:
SCARBOROUGH, GA
DOI:
--
发表时间:
1986
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Constantinides,PP;Inouchi,N;Tritton,TR;Sartorelli,AC;Sturtevant,JM
通讯作者:
Sturtevant,JM
DOI:
--
发表时间:
1980
期刊:
影响因子:
--
作者:
J. J. Kirkland;W. Yau;W. A. Doerner;J. W. Grant
通讯作者:
J. W. Grant
DOI:
--
发表时间:
1976
期刊:
Biochimica et Biophysica Acta
影响因子:
--
作者:
R. Lawaczeck;M. Kainosho;S. Chan
通讯作者:
S. Chan