Kinetic disruption of lipid rafts is a mechanosensor for phospholipase D.
Kinetic disruption of lipid rafts is a mechanosensor for phospholipase D.
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DOI:
10.1038/ncomms13873
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发表时间:
2016-12-15
影响因子:
16.6
通讯作者:
中科院分区:
文献类型:
--
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The sensing of physical force, mechanosensation, underlies two of five human senses—touch and hearing. How transduction of force in a membrane occurs remains unclear. We asked if a biological membrane could employ kinetic energy to transduce a signal absent tension. Here we show that lipid rafts are dynamic compartments that inactivate the signalling enzyme phospholipase D2 (PLD2) by sequestering the enzyme from its substrate. Mechanical disruption of the lipid rafts activates PLD2 by mixing the enzyme with its substrate to produce the signalling lipid phosphatidic acid (PA). We calculate a latency time of <650 μs for PLD activation by mixing. Our results establish a fast, non-tension mechanism for mechanotransduction where disruption of ordered lipids initiates a mechanosensitive signal for cell growth through mechanical mixing. Mechanosensation by biological membranes can be relayed by mechanical tension to ion channels. Here the authors show that phospholipase D (PLD) is activated by mechanical disruption of lipid rafts which allows PLD to mix with its substrate in the lipid membrane, and propose a kinetic model of force transduction.
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影响因子:
3.4
作者:
Orsini, F.;Cremona, A.;Rizzo, A. M.
通讯作者:
Rizzo, A. M.
DOI:
10.1073/pnas.1302018110
发表时间:
2013-03-26
影响因子:
11.1
作者:
Anishkin, Andriy;Kung, Ching
通讯作者:
Kung, Ching
DOI:
10.1083/jcb.200412058
发表时间:
2005-06-20
期刊:
The Journal of cell biology
影响因子:
--
作者:
Hess ST;Kumar M;Verma A;Farrington J;Kenworthy A;Zimmerberg J
通讯作者:
Zimmerberg J
影响因子:
3.4
作者:
COREY, DP;HUDSPETH, AJ
通讯作者:
HUDSPETH, AJ
DOI:
10.1523/jneurosci.3317-10.2010
发表时间:
2010-12-08
期刊:
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子:
--
作者:
Oliveira TG;Chan RB;Tian H;Laredo M;Shui G;Staniszewski A;Zhang H;Wang L;Kim TW;Duff KE;Wenk MR;Arancio O;Di Paolo G
通讯作者:
Di Paolo G