A dynamic set point for thermal adaptation requires phospholipase C-mediated regulation of TRPM8 in vivo.

A dynamic set point for thermal adaptation requires phospholipase C-mediated regulation of TRPM8 in vivo.
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DOI:
10.1016/j.pain.2014.08.001
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发表时间:
2014-10
期刊:
影响因子:
7.4
通讯作者:
Gereau RW IV
Gereau RW IV
中科院分区:
医学1区
文献类型:
--
作者:
Brenner DS;Golden JP;Vogt SK;Dhaka A;Story GM;Gereau RW IV

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在不同的环境温度下感知和响应热刺激的能力对于季节性地区的生存至关重要。在这项研究中,我们表明,小鼠对温度从广泛的基线温度变化的反应相似。进一步的研究表明,这种适应不同周围环境的能力是基于对动态温度设定值的快速调整。该设定值的调整需要TRPM 8而不是TRPA 1,并且由磷脂酶C(PLC)活性调节。总的来说,我们的研究结果表明,小鼠的温度反应阈值是动态的,这种适应环境温度的能力似乎反映了体外研究结果,即PLC介导的磷酸肌醇4,5-二磷酸水解调节TRPM 8活性,从而调节对冷刺激的反应阈值。
The ability to sense and respond to thermal stimuli at varied environmental temperatures is essential for survival in seasonal areas. In this study, we show that mice respond similarly to ramping changes in temperature from a wide range of baseline temperatures. Further investigation suggests that this ability to adapt to different ambient environments is based on rapid adjustments made to a dynamic temperature setpoint. The adjustment of this setpoint requires TRPM8 but not TRPA1 and is regulated by phospholipase C (PLC) activity. Overall, our findings suggest that temperature response thresholds in mice are dynamic, and that this ability to adapt to environmental temperature seems to mirror the in vitro findings that PLC-mediated hydrolysis of phosphoinositol 4,5-bisphosphate modulates TRPM8 activity and thereby regulates the response thresholds to cold stimuli.
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