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Research Article

Precise engineering of Gemcitabine prodrug cocktails into single polymeric nanoparticles delivery for metastatic thyroid cancer cells

, , , , , & show all
Pages 1063-1072 | Received 20 May 2020, Accepted 29 Jun 2020, Published online: 16 Jul 2020

Figures & data

Figure 1. Schematic representation of thyroid cancer cell targeting GEM-NPs. (A) Structure of Gemcitabine (GEM). Graphic design of the preparation process of GEM prodrug formations and self-assembly of GEM-NPs in water showing potential chemotherapy effect.

Figure 1. Schematic representation of thyroid cancer cell targeting GEM-NPs. (A) Structure of Gemcitabine (GEM). Graphic design of the preparation process of GEM prodrug formations and self-assembly of GEM-NPs in water showing potential chemotherapy effect.

Figure 2. Characterization of GEM-NPs. (A) TEM image of GEM-NPs. Scale bar 100 nm. (B) Hydrodynamic parameter of GEM-NPs. (C) Diagram of hydrodynamic parameter of GEM-NPs. (D) Zeta potential examined via DLS analysis. (E) The solution containing GEM-NPs was dialyzed counter to PBS (pH 7.4) at 37 °C. In vitro drug release of GEM prodrug from GEM-NPs.

Figure 2. Characterization of GEM-NPs. (A) TEM image of GEM-NPs. Scale bar 100 nm. (B) Hydrodynamic parameter of GEM-NPs. (C) Diagram of hydrodynamic parameter of GEM-NPs. (D) Zeta potential examined via DLS analysis. (E) The solution containing GEM-NPs was dialyzed counter to PBS (pH 7.4) at 37 °C. In vitro drug release of GEM prodrug from GEM-NPs.

Figure 3. Subcellular localization of GEM-NPs with lysosomes in B-CPAP thyroid cancer cell lines at 10, 20, and 30 minutes incubation time. Scale bar = 20 μm.

Figure 3. Subcellular localization of GEM-NPs with lysosomes in B-CPAP thyroid cancer cell lines at 10, 20, and 30 minutes incubation time. Scale bar = 20 μm.

Figure 4. In vitro cytotoxicity of B-CPAP and FTC-133 thyroid cancer cell lines.

Figure 4. In vitro cytotoxicity of B-CPAP and FTC-133 thyroid cancer cell lines.

Figure 5. Dual AO/EB fluorescent staining of B-CPAP and FTC-133 thyroid cancer cell lines after treatment with GEM and GEM-NPs (IC50 concentration) for 24 h.

Figure 5. Dual AO/EB fluorescent staining of B-CPAP and FTC-133 thyroid cancer cell lines after treatment with GEM and GEM-NPs (IC50 concentration) for 24 h.

Figure 6. Nuclear staining of B-CPAP and FTC-133 thyroid cancer cell lines after treatment with GEM and GEM-NPs (IC50 concentration) for 24 h.

Figure 6. Nuclear staining of B-CPAP and FTC-133 thyroid cancer cell lines after treatment with GEM and GEM-NPs (IC50 concentration) for 24 h.

Figure 7. Apoptotic examination of B-CPAP and FTC-133 thyroid cancer cell lines using flow cytometry. The cells were treated with GEM and GEM-NPs (IC50 concentration) for 24 h, and stained with FITC annexin V/PI for flow cytometry investigation.

Figure 7. Apoptotic examination of B-CPAP and FTC-133 thyroid cancer cell lines using flow cytometry. The cells were treated with GEM and GEM-NPs (IC50 concentration) for 24 h, and stained with FITC annexin V/PI for flow cytometry investigation.

Figure 8. Hemolysis assay with different concentration of GEM and GEM-NPs. The result of hemolysis assay reveals that the insignificant hemolysis shows that it is extremely biocompatible for in vivo profiles.

Figure 8. Hemolysis assay with different concentration of GEM and GEM-NPs. The result of hemolysis assay reveals that the insignificant hemolysis shows that it is extremely biocompatible for in vivo profiles.