4.4 Article

Antitumor Efficacy of Doxorubicin-Loaded Electrospun Attapulgite-Poly(lactic-co-glycolic acid) Composite Nanofibers

期刊

JOURNAL OF FUNCTIONAL BIOMATERIALS
卷 13, 期 2, 页码 -

出版社

MDPI
DOI: 10.3390/jfb13020055

关键词

nanofibers; attapulgite; drug release; poly(lactic-co-glycolic acid); antitumor therapy

资金

  1. Shanghai Education Commission through the Shanghai Leading Talents Program
  2. 111 Project [BP0719035]
  3. National Natural Science Foundation of China [61805161]
  4. 2020 Li Ka Shing Foundation Cross-Disciplinary Research Grant [2020LKSFG05C]
  5. Natural Science Foundation of Guangdong Province [2021A1515010441]
  6. FCT-Fundacao para a Ciencia e a Tecnologia [UIDB/00674/2020]
  7. Programmatic Fund [UIDP/00674/2020]
  8. ARDITI-Agencia Regional para o Desenvolvimento da Investigacao Tecnologia e Inovacao [M1420-01-0145-FEDER-000005]

向作者/读者索取更多资源

In this study, we developed a method to fabricate electrospun drug-loaded organic/inorganic hybrid nanofibrous system for antitumor therapy applications. The rod-like attapulgite (ATT) was utilized to load the anticancer drug doxorubicin (DOX), and mixed with poly(lactic-co-glycolic acid) (PLGA) to form electrospun hybrid nanofibers. The ATT/DOX/PLGA nanofibers showed sustained release of DOX under neutral and acidic pH conditions, significantly inhibiting tumor cell growth. These organic/inorganic hybrid nanofibers hold great promise as a nanoplatform for enhanced local tumor therapy.
Currently, cancer chemotherapeutic drugs still have the defects of high toxicity and low bioavailability, so it is critical to design novel drug release systems for cancer chemotherapy. Here, we report a method to fabricate electrospun drug-loaded organic/inorganic hybrid nanofibrous system for antitumor therapy applications. In this work, rod-like attapulgite (ATT) was utilized to load a model anticancer drug doxorubicin (DOX), and mixed with poly(lactic-co-glycolic acid) (PLGA) to form electrospun hybrid nanofibers. The ATT/DOX/PLGA composite nanofibers were characterized through various techniques. It is feasible to load DOX onto ATT surfaces, and the ATT/DOX/PLGA nanofibers show a smooth and uniform morphology with improved mechanical durability. Under neutral and acidic pH conditions, the loaded DOX was released from ATT/DOX/PLGA nanofibers in a sustained manner. In addition, the released DOX from the nanofibers could significantly inhibit the growth of tumor cells. Owing to the significantly reduced burst release profile and increased mechanical durability of the ATT/DOX/PLGA nanofibers, the designed organic-inorganic hybrid nanofibers may hold great promise as a nanoplatform to encapsulate different drugs for enhanced local tumor therapy applications.

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