We demonstrate aapproach to boost doxorubccytotoxcty va the pharmacologcal modfcatoof G6PD actvty both the EU1 Res and EU3 Sens leukema cell lnes.Wehave also demonstrated,nevertheless, that ths similar nterventostrategy employed concert wth ahgh dose of doxorubcor wtha cell contanng proteexpressolevels that promote reductve conversocaactually promote cell vabty rather thampede t.The dynamc nature from the doxorubcboactvatonetwork, and ts abty to metabolze doxorubcva dstnctvely dfferent modes, permits for the controlled manpulatoof the strategy to ether advertise cell vabty, as would be desred wheprotectng notransformed cells from undesirable doxorubctoxcty, or to advertise doxorubcnduced transformed cell death.Fnally, because the qunone framework of doxorubcs conserved across the anthracyclne drug famy, potential studes could possibly elucdate smar manage mechansms the metabolsm of other anthracyclnes by cancer cells.
Ordnary dfferental equatomodels of vtro and vvo doxorubcboactvatowere developed based othe scheme proposed inhibitor 2-Methoxyestradiol by Kostrzewa Nowak right here, the term vtro refers to experments conducted soluton, whe the phrase vvo refers to experments conducted wthlvng cells.The vtro model, whch descrbes doxorubcactvatothe presence of NADand CPR, contans six knetc parameters and 9 ODEs that descrbe the alterations concentratoof 9 compounds that construction the doxorubcboactvatonetwork.The vvo model, whch descrbes doxorubcactvatothe presence of NADPH, CPR, G6PD, SOD1, and NOX4 s aadaptatoof the vtro model and contans ten knetc parameters and ten ODEs.The vtro and vvo mathematcal models designed ths examine use mass actoknetcs to descrbe the enzymatc and noenzymatc reactons that consequence the redox cyclng and reductve conversoof doxorubcn.The computatonal models have been desgned and numercally ntegrated usng MATLAB R2008a.To accurately descrbe the impact of NADconcentratoothe mode of doxorubcboactvatothat will take place, we permitted the NADmolecule to react gradually wth molecular oxygethe vtro model.
Although ths reactos knowto occur vvo by way of the enzymatc Delanzomib actons of NADoxdases, because of thehgh concentratoof NADcontaned the reactomxture, we assumed the noenzymatc reactoof NADwth molecular oxygecould be possble, and consequently, ncluded ths reactoat a minimal price
the network model of vtro doxorubcboactvaton.For the vvo knetc model of doxorubcbo actvaton, we assumed the reactowas catalyzed by NADoxdases a mass actodrvereactothat was dependent odoxorubcconcentraton,as thas beeshowthat doxorubctreatment caactvate NOXs a doxorubcconcentratodependent manner.For both the vtro and vvo versions, we assumed doxorubcdegradatowas neglgble wththe tme perod nvestgated the study.The concentratoof ntracellular molecular oxygeused the vvo model was derved from lterature reported values of oxygeconsumptothehL 60humaleukema cell lne.The rate of oxygeconsumptothehL 60 cell lne was reported to become sgnfcantly reduce thathe price of oxygeconsumptothe notransformed murne macrophage cell lne J774A.
We demonstrate aapproach to enhance doxorubccytotoxcty va the pha
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