Determination of therapeutic effects of multifunctional micelle-based nanocarriers on breast cancer cells
Ulu, Gizem Tuğçe, author.

Determination of therapeutic effects of multifunctional micelle-based nanocarriers on breast cancer cells

Ulu, Gizem Tuğçe, author.

Yazar Ek Girişi
Ulu, Gizem Tuğçe, author.

Fiziksel Tanımlama
xiv, 92 leaves: illustrarions, charts;+ 1 computer laser optical disc.

Breast cancer is the most common and frequent cause of death among women composed to all types of cancer. Current treatment protocols do not provide complete cure or selective drug delivery while targeted therapy can provide an important avenue for successful treatment of breast cancer. In this study, therapeutic effects of drug-conjugated nanocarrier system with enhanced stability and double moiety pH-sensitivity on breast cancer (SKBR-3- HER-2- positive), normal breast epithelial (MCF-10A, HER-2-negative) and chronic myeloid leukemia (K562, HER-2-negative) cells were determined. With this approach, SKBR-3 cells were targeted by single nanocarriers having selectivity with unused peptide ligand (HER-2), stability with cross-linking of core moiety, and cleavage by two sites of pHeffect and drug release properties. After physicochemical characterization of micellebased nanocarriers, cytotoxic, apoptotic and cytostatic effects of doxorubicin conjugated micelles were determined. Doxorubicin conjugated micelles with HER-2 peptide (DOX-HER-2-NCs) had more cytotoxic effects on HER-2 positive cells. Additionally, intracellular amounts of doxorubicin is higher in SKBR-3 cells with applied DOX-HER-2-NCs as determined by fluorescence imaging. The apoptosis rate was increased on SKBR-3 at 50% cell growth inhibition (IC50) as determined by Annexin-V/Propidium iodide double staining. However, there was not any significant change in loss of mitochondrial membrane potential. Additionally, DOX-HER-2-NCs resulted in cell cycle arrest at G2/M-phase in response to IC50 value. Besides, protein level of Bcl-2 did not change while protein level of Bax and Caspase-3 were increased as determined by Western Blotting. This project provides novel and more effective treatment of breast cancer by using multifunctional properties of nanocarriers.

Konu Başlığı
Breast -- Cancer -- Genetic aspects.
Breast -- Cancer -- Molecular aspects.
Cancer cells.
Breast -- Cancer.

Yazar Ek Girişi
Baran, Yusuf

Tüzel Kişi Ek Girişi
İzmir Institute of Technology. Molecular Biology and Genetics.

Tek Biçim Eser Adı
Thesis (Master)--İzmir Institute of Technology: Molecular Biology and Genetics.
İzmir Institute of Technology: Molecular Biology and Genetics.--Thesis (Master).

Elektronik Erişim
Access to Electronic Versiyon.

LibraryMateryal TürüDemirbaş NumarasıYer NumarasıDurumu/İade Tarihi
IYTE LibraryTezT001953RC280.B8 U47 2019Tez Koleksiyonu