Èíâàçèâíûé ðîñò ÿâëÿåòñÿ ïåðâûì øàãîì ìåòàñòàòè÷åñêîãî êàñêàäà çëîêà÷åñòâåí-íûõ îïóõîëåé. Äâèãàòåëüíàÿ àêòèâíîñòü êëåòîê, íåîáõîäèìûé êîìïîíåíò èíâàçèè, òåñíî ñâÿçàíà ñ äèíàìèêîé ñòðóêòóð öèòîñêåëåòà. Âàaeíóþ ðîëü â îáåñïå÷åíèè êëåòî÷-íîé ïîäâèaeíîñòè èãðàþò ìèêðîòðóáî÷êè, êîòîðûå ñîñòîÿò èç òóáóëèíà -ãåòåðîäèìå-ðà, ñîäåðaeàùåãî a è b ñóáúåäèíèöû, ïðåäñòàâëåíûå ðàçëè÷íûìè èçîòèïàìè. Ïîÿâëå-íèå â îïóõîëè b III -òóáóëèíà èãðàåò âàaeíóþ ðîëü â ïðîãíîçå òå÷åíèÿ è õèìèîðåçèñòåíò-íîñòè ðÿäà îïóõîëåé ÷åëîâåêà. Äàííîå èññëåäîâàíèå ïîñâÿùåíî îïðåäåëåíèþ âîçìîae-íîñòè èñïîëüçîâàíèÿ b III -òóáóëèíà â êà÷åñòâå ìîëåêóëû-ìèøåíè äëÿ ïîäàâëåíèÿ èíâà-çèâíîãî ðîñòà. Óñòàíîâëåíî, ÷òî áëîêèðîâàíèå ýêñïðåññèè b III -òóáóëèíà â êëåòêàõ êîëîðåêòàëüíîãî ðàêà íå âëèÿåò íà èõ aeèçíåñïîñîáíîñòü, îäíàêî ñíèaeàåò àäãåçèþ ê âíåêëåòî÷íîìó ìàòðèêñó êëåòîê ëèíèè HT-29 íà 40 % (ð = 0,0044), HCT 116 -íà 15 % ( p = 0,0436) è èíâàçèâíóþ àêòèâíîñòü â 4 ðàçà ( p = 0,0000 è p = 0,0001 ñîîòâåòñòâåí-íî). Äàííûå ôàêòû ïîçâîëÿþò ðàññìàòðèâàòü b III -òóáóëèí â êà÷åñòâå ìîëåêóëû-ìèøå-íè ïðè ðàçðàáîòêå ïðîòèâîîïóõîëåâûõ ëåêàðñòâåííûõ ïðåïàðàòîâ.Êëþ÷åâûå ñëîâà: òóáóëèí; èíâàçèâíûé ðîñò; ìåòàñòàçèðîâàíèå; êîëîðåêòàëüíûé ðàê; êóëüòóðà êëåòîê. ÂÂÅÄÅÍÈÅÐàçðàáîòêà ñîâðåìåííûõ ëåêàðñòâåííûõ ïðåïàðàòîâ îñíîâûâàåòñÿ íà óñïåõàõ ìîëåêóëÿðíîé áèîëîãèè è òðàíñëÿöèîííûõ ìåäèöèíñêèõ èññëåäîâàíèé ïî âûÿâ-ëåíèþ êëþ÷åâûõ ìîëåêóë ïàòîãåíåòè÷åñêîãî êàñêàäà è èñïîëüçîâàíèþ èõ â êà÷åñòâå ìèøåíåé äëÿ ìåäèêà-ìåíòîçíîãî âîçäåéñòâèÿ. Íà äàííûé ìîìåíò â ôàðìà-öåâòè÷åñêîé ïðîìûøëåííîñòè íàøëè ïðèìåíåíèå 324 òàêèå ìîëåêóëû [8]. Áîëüøóþ ÷àñòü ìîëåêóë ìèøåíåé ñîñòàâëÿþò ðåöåïòîðû (45 %), ôåðìåíòû (28 %) è ãîð-ìîíû (11 %) [3]. Ðàñøèôðîâêà ãåíîìà ÷åëîâåêà â 2002 ã. ïîçâîëèëà âûÿâèòü îò 3000 äî 10000 ïîòåíöè-àëüíûõ ôàðìàêîëîãè÷åñêèõ ìèøåíåé [6]. Ñ ýòèõ ïîçè-öèé ïðåäñòàâëÿåòñÿ âàaeíûì óñòàíîâëåíèå íîâûõ çàêî-íîìåðíîñòåé èçìåíåíèé ìîëåêóëÿðíîãî ñîñòàâà êëå-òîê ïðè ðÿäå ïàòîëîãè÷åñêèõ ïðîöåññîâ ÷åëîâåêà, âêëþ÷àÿ îïóõîëåâûé ðîñò.Ìàëî èçó÷åííîé íà äàííûé ìîìåíò âðåìåíè îñòàåò-ñÿ îáëàñòü ïåðåñòðîéêè öèòîñêåëåòà ïðè ðàçëè÷íûõ ñîñòîÿíèÿõ êëåòêè. Îäíèì èç êîìïîíåíòîâ öèòîñêåëå-òà ÿâëÿþòñÿ ìèêðîòðóáî÷êè -äèíàìè÷åñêèå ñòðóêòó-ðû, îáåñïå÷èâàþùèå âíóòðèêëåòî÷íûé òðàíñïîðò â èíòåðôàçó, à òàêaeå îáðàçóþùèå âåðåòåíî äåëåíèÿ â ôàçó ìèòîçà. Ìèêðîòðóáî÷êè ñîñòîÿò èç òóáóëèíà -ãåòåðîäèìåðà, ñîäåðaeàùåãî a è b ñóáúåäèíèöû, êîòî-ðûå ìîãóò áûòü ïðåäñòàâëåíû ðàçëè÷íûìè èçîòèïàìè. Äëÿ a-ñóáúåäèíèöû èçâåñòíî 8 èçîòèïîâ, à äëÿ b--7 [7]. Òàêaeå èçâåñòíû ìíîãî÷èñëåííûå ïîñòòðàíñëÿöèîí-íûå ìîäèôèêàöèè êàê a-, òàê è b-òóáóëèíà, òàêèå êàê òè-ðîçèíèðîâàíèå, àöåòèëèðîâàíèå, ïîëèãëóòàìèíèðîâà-íèå, äåòèðîçèíèðîâàíèå, ôîñôîðèëèðîâàíèå è äð. [10].Äâèaeåíèå êëåòîê, ÷àñòíûì âàðèàíòîì êîòîðîãî ÿâ-ëÿåòñÿ èíâàçèâíûé ðîñò çëîêà÷åñòâåííûõ îïóõîëåé, òåñíî ñâÿçàíî ñ äèíàìèêîé ñòðóêòóð öèòîñêåëåòà. Óñ-òàíîâëåíî, ÷òî íàðÿäó ñ àêòèíîâûìè ìèêðîôèëàìåí-òàìè âàaeíóþ ðîëü â îáåñïå÷åíèè êëåòî÷íîé ïîäâèae-íîñòè èãðàþò ìèêðîòðóáî÷êè. Áîëåå òîãî, ôóíêöèîíè-ðîâàíèå àêòèíîâûõ ìèêðîôèëàìåíòîâ çàâèñèò îò ïî-ëèìåðèçàöèîííîé äèíàìèêè ìèêðîòðóáî÷åê [2].Ðà...
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2025 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.