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Ѕ≥олог≥¤ > ÷исплатина


ѕов≥домл¤Їтьс¤ про те, що г≥перекспрес≥¤ супресорного гена nm 23 супроводжуЇтьс¤, ¤к правило, зб≥льшенн¤м чутливост≥ до д≥њ цисплатина. ƒан≥ результати отримано з досл≥джень in vitro на кл≥тинних л≥н≥¤х карциноми молочноњ залози людини MDA-MB-435, л≥н≥њ карциноми ¤Їчника OKAR-3 та л≥н≥њ меланоми  -1735-“ , а також при досл≥дженн≥ кл≥н≥чного матер≥алу пухлин молочноњ залози. ” вс≥х досл≥джуваних системах г≥перекспрес≥¤ nm 23 призвела до формуванн¤ у кл≥тинах великоњ к≥лькост≥ м≥жланцюгових зшивок ƒЌ  та зб≥льшенн¤ чутливост≥ до цисплатина [110].

÷≥кавими Ї дан≥ по переносу резисткнтного до цисплатина фенотипу при трансфекц≥њ ген≥в v-src. Ќепухлинн≥ еп≥тел≥альн≥ кл≥тини людини HAG-1 п≥сл¤ трансфекц≥њ гену v-src набували неопластичного фенотипу та резистентност≥ до цисплатина. ” трансформованих кл≥тинах спостер≥гали значне зменьшенн¤ формуванн¤ м≥жланцюгових зшивок ƒЌ  з њх посл≥довним швидким видаленн¤м. ѕ≥сл¤ обробки даних кл≥тин ≥нг≥б≥торами src-к≥наз знижувавс¤ р≥вень резистентност≥ до цисплатина. –езультати ц≥Їњ роботи вказують на можлив≥сть участ≥ продукту гена v-src в ≥ндукц≥њ резитентност≥ до цисплатина шл¤хом модул¤ц≥њ де¤ких шл¤х≥в репарац≥њ ƒЌ  [111].

јмпл≥ф≥кац≥¤ гена сорцина (кальц≥й-зв¤зуючого б≥лка з молекул¤рною масою 19-22кƒ) в де¤ких модельних системах асоц≥ювалас¤ з резистентним фенотипом [112]. ¬ажко зараз сказати, чи Ї резистентн≥сть пов`¤заною саме з сорцином чи разом з геном сорцина у кл≥тинах ампл≥ф≥кован≥ ≥ ≥нш≥, б≥льш важлив≥ дл¤ розвитку резистентност≥ гени.

“аким чином резистентн≥сть до цисплатина маЇ комплексний характер ≥ пов`¤зана з р¤дом особливостей кл≥тин на р≥вн≥ цитоплазматичноњ мемрани, внутр≥шньокл≥тинних систем детоксикац≥њ, систем репарац≥њ та порушенн¤ функц≥ональноњ активност≥ ген≥в p 53, bcl-2, fos, mdm 2, nm23та ≥нших.

—писок л≥тератури

„ехун ¬‘. –оль плазматичних мембран нормальних ≥ пухлинних кл≥тин в механ≥зм≥ реал≥зац≥њ цитотоксичних ефект≥в координац≥йних сполук платини [јвтореф дис ... докт мед наук].  иев: »Ёѕќ–, 1994. 40 сс.

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Ќазва: ÷исплатина
ƒата публ≥кац≥њ: 2005-01-07 (2107 прочитано)

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