Aterosklerosia arterien gune azpi-endotelialean gertatzen den kolesterol metaketaren ondorioz garatzen da, gaixotasun kardiobaskular larriak eragin ditzakeelarik. Aterosklerosiaren tratamendurako, HDL naturalak (dentsitate handiko lipoproteinak) imitatzen duten hainbat nanopartikulen diseinua burutu izan da (rHDL), ateroma plakako soberazko kolesterola iraizteko helburuarekin. rHDLek kolesterola jasotzeaz gain mikroRNAk edo antagomiRNAk (mikroRNA inhibitzaileak) bezalako molekulak garraiatu ditzakete. Ikerketa honetan, rHDL administrazio sekuentziala ateroma eredu batean ezarri zen. Lehen administrazioan, ABCA1 kolesterol garraiatzailearen adierazpena emendatzeko antagomiRNA bat garraiatu zen rHDL bidez eta bigarrenean, rHDLak soberazko kolesterola jasotzeko gehitu ziren.
Atherosclerosis develops as a result of the accumulation of cholesterol in the subendothelial spaceof the arteries, which can cause serious cardiovascular diseases. For the treatment of atherosclerosis, the design of several nanoparticles (rHDL) that mimic natural HDLs has been carried out for the purpose of removingexcess cholesterol in ateroma plaques. In addition to cholesterol uptake, rHDLscan transportsmallmolecules such as microRNAs, or their inhibitors, antagomiRNAs. In this study, the sequential administration of rHDL was implementedin an atheroma model. In afirst administration, an antagomiRNA was transportedby rHDLsto increase the expression of ABCA1 cholesteroltransporter, and in asecond administration, rHDLs were added to removecholesterolfrom the cells.
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