Ferritin Decorated PLGA/Paclitaxel Loaded Nanoparticles Endowed with an Enhanced Toxicity Toward MCF-7 Breast Tumor Cells.
Ludmila N TurinoMaria Rosaria RuggieroRachele StefanìaJuan C CutrinSilvio AimeSimonetta Geninatti CrichPublished in: Bioconjugate chemistry (2017)
Polylactic and glycolic acid nanoparticles (PLGA-NPs), coated with L-ferritin, are exploited for the simultaneous delivery of paclitaxel and an amphiphilic Gd based MRI contrast agent into breast cancer cells (MCF7). L-ferritin has been covalently conjugated to the external surface of PLGA-NPs exploiting NHS activated carboxylic groups. The results confirmed that nanoparticles decorated with L-ferritin have many advantages with respect to both albumin-decorated and nondecorated particles. Ferritin moieties endow PLGA-NPs with targeting capability, exploiting SCARA5 receptors overexpressed by these tumor cells, that results in an increased paclitaxel cytotoxicity. Moreover, protein coating increased nanoparticle stability, thus reducing the fast and aspecific drug release before reaching the target. The theranostic potential of the nanoparticles has been demonstrated by evaluating the signal intensity enhancement on T1-weighted MRI images of labeled MCF7 cells. The results were compared with that obtained with MDA cells used as negative control due to their lower SCARA5 expression.
Keyphrases
- iron deficiency
- breast cancer cells
- drug release
- drug delivery
- contrast enhanced
- induced apoptosis
- cell cycle arrest
- cancer therapy
- magnetic resonance imaging
- magnetic resonance
- quantum dots
- reduced graphene oxide
- photodynamic therapy
- walled carbon nanotubes
- poor prognosis
- oxide nanoparticles
- gold nanoparticles
- bone regeneration
- endoplasmic reticulum stress
- pi k akt
- fluorescence imaging
- convolutional neural network
- climate change
- cell proliferation
- small molecule
- pet imaging
- protein protein