Glucocorticoids coordinate the bladder peripheral clock and diurnal micturition pattern in mice.

Glucocorticoids coordinate the bladder peripheral clock and diurnal micturition pattern in mice.
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DOI:
10.1038/s42003-023-04464-3
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发表时间:
2023-01-21
影响因子:
5.9
通讯作者:
--
中科院分区:
生物学2区
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--
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Peripheral clocks function to regulate each organ and are synchronized though various molecular and behavioral signals. However, signals that entrain the bladder clock remain elusive. Here, we show that glucocorticoids are a key cue for the bladder clock in vitro and in vivo. A pBmal1-dLuc human urothelial cell-line showed significant shifts in gene expression after cortisol treatment. In vivo, rhythmic bladder clock gene expression was unchanged by bilateral adrenalectomy but shifted 4 h forward by corticosterone administration at the inactive phase. Moreover, the bladder clock shifted 8–12 h in mice that underwent both bilateral adrenalectomy and corticosterone administration at the inactive phase. These mice showed decreases in the diurnal rhythm of volume voided per micturition, while maintaining diurnal activity rhythms. These results indicate that the diurnal rhythm of glucocorticoid signaling is a zeitgeber that overcomes other bladder clock entrainment factors and coordinates the diurnal rhythm of volume voided per micturition. The diurnal rhythm of glucocorticoid is shown to be a master regulator of the bladder clock in mice.
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