Erythrocyte membrane fluidity in malignant hyperthermia

Cooper, P H; Meddings, Jon

doi:10.1016/0005-2736(91)90117-q

Cited by 10 publications

(3 citation statements)

References 11 publications

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“…1993; Horváth et al . 1998); hence, the administration of the membrane fluidizer benzyl alcohol (Cooper & Meddings 1991) indeed induced the expression of OsHSP17 genes and sHSP protein accumulation at a non‐inducing temperature (Supporting Information Fig. S10).…”

Section: Discussionmentioning

confidence: 99%

“…Other voltage-gated Ca 2+ channel blockers such as nifedipine and mibefradil also lowered the HS-triggered [Ca 2+ ]cyt responses and expression of OsCaM1-1 and OsHSP17 genes (data not shown). Membrane fluidity of the cell changes with HS (Lehel et al 1993;Horváth et al 1998); hence, the administration of the membrane fluidizer benzyl alcohol (Cooper & Meddings 1991) indeed induced the expression of OsHSP17 genes and sHSP protein accumulation at a non-inducing temperature (Supporting Information Fig. S10).…”

Section: The Hs-triggered [Ca 2+ ]Cyt Response May Correspond To the mentioning

confidence: 98%

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Heat shock‐induced biphasic Ca²⁺ signature and OsCaM1‐1 nuclear localization mediate downstream signalling in acquisition of thermotolerance in rice (Oryza sativa L.)

Luo

Vignols

et al. 2012

Plant Cell & Environment

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We investigated heat shock (HS)‐triggered Ca2+ signalling transduced by a Ca2+ sensor, calmodulin (CaM), linked to early transcriptome changes of HS‐responsive genes in rice. We observed a biphasic [Ca2+]cyt signature in root cells that was distinct from that in epicotyl and leaf cells, which showed a monophasic response after HS. Treatment with Ca2+ and A23187 generated an intense and sustained increase in [Ca2+]cyt in response to HS. Conversely, treatment with Ca2+ chelator, L‐type Ca2+ channel blocker and CaM antagonist, but not intracellular Ca2+ release inhibitor, strongly inhibited the increased [Ca2+]cyt. HS combined with Ca2+ and A23187 accelerated the expression of OsCaM1‐1 and sHSPC/N genes, which suggests that the HS‐induced apoplastic Ca2+ influx is responsible for the [Ca2+]cyt response and downstream HS signalling. In addition, the biphasic response of OsCaM1‐1 in the nucleus followed the Ca2+ signature, which may provide the information necessary to direct HS‐related gene expression. Overexpression of OsCaM1‐1 induced the expression of Ca2+/HS‐related AtCBK3, AtPP7, AtHSF and AtHSP at a non‐inducing temperature and enhanced intrinsic thermotolerance in transgenic Arabidopsis. Therefore, HS‐triggered rapid increases in [Ca2+]cyt, together with OsCaM1‐1 expression and its nuclear localization, are important in mediating downstream HS‐related gene expression for the acquisition of thermotolerance in rice.

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Section: Discussionmentioning

confidence: 99%

Section: The Hs-triggered [Ca 2+ ]Cyt Response May Correspond To the mentioning

confidence: 98%

Heat shock‐induced biphasic Ca²⁺ signature and OsCaM1‐1 nuclear localization mediate downstream signalling in acquisition of thermotolerance in rice (Oryza sativa L.)

Luo

Vignols

et al. 2012

Plant Cell & Environment

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“…For DODAC vesicles, MB permeation through the bilayer is negligible at room temperature (20 ± 2°C) (39). In addition, we consider that DFTA and HFDA should be located exclusively in the lipidic pseudophase, because of the structural similarity with anthracene and pyrene derivatives currently employed as fluorescent probes in vesicles of synthetic and natural surfactants (40–44). The trimethylammonium head and the length of the tether alkyl group locate the reactive furan moiety at different depths in the vesicle bilayer.…”

Section: Resultsmentioning

confidence: 99%

Study of Singlet Oxygen Equilibrium in Dioctadecyldimethylammonium Chloride Vesicles Employing 2-(n-(N,N,N-trimethylamine)-n-alkyl)- 5-alkylfuryl Halides†

Zanocco

Meléndrez

Günther

et al. 2007

Photochemistry and Photobiology

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Steady state photolysis and time resolved near infrared luminescence detection were employed to study the reaction kinetics of singlet oxygen with three different lipid-soluble probes incorporated in large unilamellar dioctadecyldimethylammonium chloride (DODAC) vesicles. The probes: 2-(4-(N,N,N-trimethylamine)-butyl)-5-dodecylfuryl bromide (DFTA), 2-(12-(N,N,N-trimethylamine)-dodecyl)-5-hexylfuryl bromide (HFDA) and 2-(1-(N,N,N-trimethylamine)-methyl)-5-methylfuryl iodide (MFMA) are useful in studying both singlet oxygen dynamics and its equilibrium in microcompartmentalized systems because they are actinometers in lipidic microphases. These probes contain a reactive furan ring, which will be located at different depths in the bilayer of DODAC vesicles. In the limit of the approximations, the result indicates an inhomogeneous equilibrium distribution of singlet oxygen across the bilayer. The calculated mean partitioning constant of singlet oxygen equals 2.8 and 8.3 at 20 degrees C and 40 degrees C, respectively, in the order of the previously reported constants for other microorganized systems such as sodium dodecylsulfate and cetyltrimethylammonium halide micelles and water/oil microemulsions.

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Disruption of endothelial barrier function: relationship to fluidity of membrane extracellular lamella

Alvarado

Burrerfield

Hennig

1994

International Journal of Biochemistry

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Erythrocyte membrane fluidity in malignant hyperthermia

Cited by 10 publications

References 11 publications

Heat shock‐induced biphasic Ca²⁺ signature and OsCaM1‐1 nuclear localization mediate downstream signalling in acquisition of thermotolerance in rice (Oryza sativa L.)

Heat shock‐induced biphasic Ca²⁺ signature and OsCaM1‐1 nuclear localization mediate downstream signalling in acquisition of thermotolerance in rice (Oryza sativa L.)

Study of Singlet Oxygen Equilibrium in Dioctadecyldimethylammonium Chloride Vesicles Employing 2-(n-(N,N,N-trimethylamine)-n-alkyl)- 5-alkylfuryl Halides†

Disruption of endothelial barrier function: relationship to fluidity of membrane extracellular lamella

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Erythrocyte membrane fluidity in malignant hyperthermia

Cited by 10 publications

References 11 publications

Heat shock‐induced biphasic Ca2+ signature and OsCaM1‐1 nuclear localization mediate downstream signalling in acquisition of thermotolerance in rice (Oryza sativa L.)

Heat shock‐induced biphasic Ca2+ signature and OsCaM1‐1 nuclear localization mediate downstream signalling in acquisition of thermotolerance in rice (Oryza sativa L.)

Study of Singlet Oxygen Equilibrium in Dioctadecyldimethylammonium Chloride Vesicles Employing 2-(n-(N,N,N-trimethylamine)-n-alkyl)- 5-alkylfuryl Halides†

Disruption of endothelial barrier function: relationship to fluidity of membrane extracellular lamella

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Heat shock‐induced biphasic Ca²⁺ signature and OsCaM1‐1 nuclear localization mediate downstream signalling in acquisition of thermotolerance in rice (Oryza sativa L.)

Heat shock‐induced biphasic Ca²⁺ signature and OsCaM1‐1 nuclear localization mediate downstream signalling in acquisition of thermotolerance in rice (Oryza sativa L.)