Дигитални архив издања САНУ
    • English
    • Српски
    • Српски (Serbia)
  • Српски (ћирилица) 
    • Енглески
    • Српски (ћирилица)
    • Српски (латиница)
  • Пријава
Преглед рада 
  •   ДАИС
  • Институт техничких наука САНУ
  • ITN SANU - Opšta kolekcija
  • Преглед рада
  •   ДАИС
  • Институт техничких наука САНУ
  • ITN SANU - Opšta kolekcija
  • Преглед рада
JavaScript is disabled for your browser. Some features of this site may not work without it.

Tumor-selective hybrid system based on hydroxyapatite nanocarrier, chitosan, poly(lactic-co-glycolic acid) and androstan derivate

Thumbnail
2016
Ignjatovic_Yucomat2016.pdf (57.82Kb)
Аутори
Ignjatović, Nenad
Penov Gaši, Katarina
Wu, Victoria
Ajduković, Jovana
Kojić, Vesna
Vasiljević Radović, Dana
Uskoković, Vuk
Uskoković, Dragan
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документу
Апстракт
The applicative potential of synthetic calcium phosphates, especially hydroxyapatite (HAp), has become intensely broadened in the past 10 years, from bone tissue engineering to multiple other fields of biomedicine. Previously we have shown that hydroxyapatite nanoparticles coated with chitosan-poly(D,L)-lactide-co-glycolide (HAp/Ch-PLGA) target lungs following their intravenous administration into mice. For this purpose radioactive 125-Iodine (125I), a low energy gamma emitter, was used to develop a novel in situ method for radiolabeling of particles and investigation of their biodistribution. In this study we utilize an emulsification process and freeze drying to load the composite particles based on hydroxyapatite nanocarrier, chitosane and poly(lactic-co-glycolic acid) with 17β- hydroxy-17α-picolyl-androst-5-en-3β-acetate (A), a chemotherapeutic derivative of androstane. The picolyl androstane derivatives showed high potency in the cell inhibitors of hormonedependent cancers (adenoc...arcinoma, prostate cancer, cervix carcinoma, colon cancer, etc.). 1H NMR, 13C NMR and high-resolution time-of-flight mass spectrometry (MS) techniques confirmed the intact structure of the derivative A following its entrapment within HAp/Ch-PLGA particles. The synthesized particles of A-loaded HAp/Ch-PLGA were found to be spherical in shape with a uniform size distribution of d50=168 nm. The release of A from HAp/Ch-PLGA was sustained, with no burst release or plateauing after three weeks. The obtained results of the DET and MTT tests show that the particles of A-loaded HAp/Ch-PLGA exhibit almost three times higher cytotoxicity towards lung adenocarcinoma cells (A549) than towards healthy cells (MRC5), while at the same time allowing twice as fast recovery of healthy cells. We have also analyzed the period of recovery of healthy, as well as cancer cells, following the treatment with A-loaded HAp/Ch-PLGA. After treatment with A-loaded HAp/Ch-PLGA, healthy cells recover twice as fast as the malignant ones. Immunofluorescent staining of primary fibroblasts interacting with HAp/Ch-PLGA and A-HAp/Ch-PLGA particles demonstrates no negative morphological or proliferative effects on cells.

Кључне речи:
hydroxyapatite / chitosan / androstane / PLGA / nanocarriers
Извор:
Programme and The Book of Abstracts / Eighteenth Annual Conference YUCOMAT 2016, Herceg Novi, September 5-10, 2016, 2016, 27-27
Издавач:
  • Belgrade : Materials Research Society of Serbia
Пројекти:
  • Молекуларно дизајнирање наночестица контролисаних морфолошких и физичко-хемијских карактеристика и функционалних материјала на њиховој основи (RS-45004)

ISBN: 978-86-919111-1-9

[ Google Scholar ]
URI
http://dais.sanu.ac.rs/123456789/896
Колекције
  • ITN SANU - Opšta kolekcija
Институција
Институт техничких наука САНУ

DSpace software copyright © 2002-2015  DuraSpace
О ДАИС репозиторијуму | Пошаљите запажања

OpenAIRERCUB
 

 

Комплетан репозиторијумИнституцијеАуториНасловиТемеОва институцијаАуториНасловиТеме

DSpace software copyright © 2002-2015  DuraSpace
О ДАИС репозиторијуму | Пошаљите запажања

OpenAIRERCUB