"As shown in XREF_FIG, TREK-1 current was potentiated by 10muM arachidonic acid (AA) and application of SPA (10 -6 M) inhibited the AA activated TREK-1 current."
"Since TREK and TRAAK channels are activated by arachidonic acid, it has been suggested that the mechanically sensitive phospholipase A 2 could mediate these effects XREF_BIBR although TRAAK mechanical activation is still possible in the presence of phospholipase A 2 inhibitors."
"TRAAK, TREK-1, and TREK-2 channels are activated by arachidonic acid (AA)."
"As shown in XREF_FIG, TREK-1 current was potentiated by 10muM arachidonic acid (AA) and application of SPA (10 -6 M) inhibited the AA activated TREK-1 current."
"Swelling activated and arachidonic acid induced currents are TREK-1 in rat bladder smooth muscle cells."
"Therefore, we suppose that the mechanical stretch due to the mastication activates phospholipase A (2) to release arachidonic acid (AA) from membrane, then, the released AA activates TREK-1."
"The present study showed that treatment of uterine strips with TREK-1 channel inhibitor L-methionine insignificantly increased uterine contraction, while treatment with TREK-1 activator arachidonic acid caused a dramatic reduction in uterine contraction, suggesting that the TREK-1 is active and functional during pregnancy in rats."
"Spadin Selectively Antagonizes Arachidonic Acid Activation of TREK-1 Channels."
"Although known as an inhibitor of many K + channels [13], AA also has been demonstrated to stimulate hEAG1 [16], Kir2.3 [17], and the TREK subfamily of K2P channels, including TREK-1, TREK-2, and TRAAK [18]."
"The effect of cochlin was opposite to the well-known effects of shear stress stimulation by fluid flow or arachidonic acid (20microM), which significantly increased TREK-1 current by 72.1 +/-21.9% and 148.7 +/-50.1%, respectively (n = 5 each; Fig."
"Our data suggest that the opening of background K (+) channels, like TREK-1 and TRAAK, which are activated by arachidonic acid and other polyunsaturated fatty acids such as docosahexaenoic acid and linolenic acid, is a significant factor in this neuroprotective effect."
"Furthermore, as predicted based on arachidonic acid activation of both TREK-1 and TREK-2, some of the small molecules from this TREK-2 HTS were found to activate both TREK-1 and TREK-2."
"In a number of experiments, we examined the action of AA on membrane patches, keeping in mind that AA could stimulate TREK-1 directly [21]."
"Application of 10 muM arachidonic acid (AA) (free fatty acid) to cells expressing TREK-1 robustly activates TREK-1."
"Application of arachidonic acid (10 mumol/L), chloroform (1 mmol/L) or etomidate (10 mumol/L) substantially increased TREK-1 channel currents in CHO and hTREK -1 cells."
"Finally, we show that Glu306, an amino acid that has previously been found to be important in the modulation of TREK-1 by arachidonic acid, membrane stretch and internal pH, is critical for the activating effects of the anesthetic gases."
"Therefore, we suppose that the mechanical stretch due to the mastication activates phospholipase A (2) to release arachidonic acid (AA) from membrane, then, the released AA activates TREK-1."
"TREK1, TREK2, and TRAAK are activated by arachidonic acid (AA) and other polyunsaturated fatty acids, such as docosahexaenoic acid and linoleic acid [ xref xref xref xref xref ]."
"Arachidonic acid (an activator of TREK channels) had no effect on this conductance."
"The activation of TREK-1 by AA and inhibition by forskolin were closely linked to membrane hyperpolarization and depolarization, respectively."
"TREK1, TREK2, and TRAAK are activated by arachidonic acid (AA) and other polyunsaturated fatty acids, such as docosahexaenoic acid and linoleic acid [XREF_BIBR XREF_BIBR XREF_BIBR XREF_BIBR XREF_BIBR]."
"Application of 10 muM arachidonic acid (AA) (free fatty acid) to cells expressing TREK-1 robustly activates TREK-1."
"Our data suggest that the opening of background K(+) channels, like TREK-1 and TRAAK, which are activated by arachidonic acid and other polyunsaturated fatty acids such as docosahexaenoic acid and linolenic acid, is a significant factor in this neuroprotective effect."
"Single channel recording via patch clamping showed that the TREK-1 outward currents in astrocytes could be activated by arachidonic acid (AA) or chloroform with the conductance of 113 +/-14 and 120 +/-13pS, respectively."
"However, the addition of AA to cells can activate TREK-1 in seconds, and our lipidomics study incorporated AA over 15 min."
"Similarly, arachidonic acid is suggested to activate TREK1 through incorporation in the outer leaflet of the bilayer XREF_BIBR and yet arachidonic does not stimulate TRPC5 XREF_BIBR."
"Arachidonic acid (AA) which is generated during CRH stimulation activates TREK-1 channels and causes hyperpolarization."
"It is unlikely that block of phospholipase A 2 underlies the substantive effects on TREK and TRESK channels seen here, because arachidonic acid enhances TREK (and TRAAK) channels (Fink et al., 1996; Enyedi and Czirjak, 2010) and blocks TRESK channels (Sano et al., 2003; Kang et al., 2004)."
"The activation of TREK-1 by AA and inhibition by forskolin were closely linked to membrane hyperpolarization and depolarization, respectively."
"Activation of TREK-1 by arachidonic acid (AA) is proposed to occur by a process linked to stretch activation (Brohawn, 2015)."
"Importantly, in uterine strips treated simultaneously with progesterone and L-methionine, no significant reduction in uterine contraction was observed, and the uterine contraction was at levels similar to those in control tissues without progesterone or L-methionine treatment, suggesting opposing effects of L-methionine and progesterone on TREK-1 channel mediated uterine relaxation TREK-1 activator arachidonic acid causes no further effect on progesterone induced uterine relaxation."
"In inside-out patches, AA activated TRAAK, TREK-1, and TREK-2 channels with EC 50 values of 1.2 ± 0.1, 6.9 ± 1.2, and 3.8 ± 0.4 μM, respectively ( xref B and S6C)."
"Mouse TREK-1 and TREK-2 channel currents were both significantly increased by AA, BL-1249, and CDC, similar to their human homologs."