0000000000359750

AUTHOR

Siham Madani

showing 2 related works from this author

Calcium signatures and signaling in cytosol and organelles of tobacco cells induced by plant defense elicitors

2011

Calcium signatures induced by two elicitors of plant defense reactions, namely cryptogein and oligogalacturonides, were monitored at the subcellular level, using apoaequorin-transformed Nicotiana tabacum var Xanthi cells, in which the apoaequorin calcium sensor was targeted either to cytosol, mitochondria or chloroplasts. Our study showed that both elicitors induced specific Ca2+ signatures in each compartment, with the most striking difference relying on duration. Common properties also emerged from the analysis of Ca2+ signatures: both elicitors induced a biphasic cytosolic [Ca2+] elevation together with a single mitochondrial [Ca2+] elevation concomitant with the first cytosolic [Ca2+] p…

ChlorophyllChloroplastsTime FactorsPhysiology[SDV]Life Sciences [q-bio]Nicotiana tabacumAequorinMitochondrionMITOCHONDRIALAntiportersCA2+CytosolPlant defenseINTACT CHLOROPLASTSCation Transport ProteinsCalcium signalingRECOMBINANT AEQUORINDEATHfood and beveragesARABIDOPSISOligogalacturonidesMitochondriaChloroplastBiochemistry[SDE]Environmental SciencesCryptogeinPhytophthorachemistry.chemical_elementCalciumBiologyChloroplastFluorescenceFungal ProteinsPHOTOSYSTEM-IIPlant CellsTobaccoOrganelle[SDV.BV]Life Sciences [q-bio]/Vegetal BiologyCalcium SignalingMolecular BiologyHYPERSENSITIVE RESPONSENITRIC-OXIDECell MembraneCell Biologybiology.organism_classificationSALICYLIC-ACIDOxygenCytosolchemistryBiophysicsbiology.proteinCalciumCell Calcium
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Adrb3 adrenergic receptor is a key regulator of human myometrial apoptosis and inflammation during chorioamnionitis1

2008

The pathophysiology underlying preterm labor triggered by inflammatory conditions such as chorioamnionitis remains largely unclear. It has already been suggested that beta-3 adrenergic (ADRB3) agonists might be of interest in the pharmacological management of preterm labor. Although there is evidence implicating ADRB receptors in the control of inflammation, there are minimal data relating specifically to ADRB3. To explore the cellular consequences of chorioamnionitis and detect apoptosis, we first performed immunostaining and Western blot experiments on human myometrial samples obtained from women with confirmed chorioamnionitis. We then developed an in vitro model of chorioamnionitis by i…

preterm labormedicine.medical_specialtymedicine.medical_treatmentunited-statesbeta-adrenoceptorsStimulationInflammationin-vitroChorioamnionitisProinflammatory cytokineimmunology03 medical and health sciences0302 clinical medicineInternal medicinemedicineInterleukin 8Interleukin 6030304 developmental biology0303 health sciencesbiologycell apoptosislipopolysaccharideapoptosisbacterial infectionCell BiologyGeneral Medicinemedicine.diseasegene-expressioncytokines3. Good healthEndocrinologyCytokineReproductive Medicineinflammation030220 oncology & carcinogenesisbiology.proteincytokine productionbeta(3)-adrenoceptorTumor necrosis factor alphapregnancymedicine.symptomdeliverytumor-necrosis-factorterm
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