2. Academic Validation
  3. Targeted delivery of Auristatin PE to Hep G2 cells using folate - conjugated boron nitride nanotubes

Targeted delivery of Auristatin PE to Hep G2 cells using folate - conjugated boron nitride nanotubes

  • Mater Sci Eng C Mater Biol Appl. 2020 Apr;109:110509. doi: 10.1016/j.msec.2019.110509.
Wei Li 1,  Xi Xie 2,  Tiantian Wu 1,  Huan Yang 1,  Yanan Peng 1,  Lijie Luo 1,  Yongjun Chen 3
Affiliations

Affiliations

  • 1 State Key Laboratory of Marine Resource Utilization in South China Sea, School of Materials Science and Engineering, Hainan University, Haikou 570228, China.
  • 2 Hainan Provincial Key Laboratory for Tropical Hydrobiology and Biotechnology, College of Marine Science, Hainan University, Haikou 570228, China.
  • 3 State Key Laboratory of Marine Resource Utilization in South China Sea, School of Materials Science and Engineering, Hainan University, Haikou 570228, China. Electronic address: [email protected].
PMID: 32228939 DOI: 10.1016/j.msec.2019.110509
Abstract

Auristatin PE (PE) as an anti-microtubule agent possesses good Anticancer activity. However, the poor target effect and strong side effect limit its clinical applications. Targeted delivery of PE may overcome the disadvantages associated with PE, being very conducive to continuing clinical trials of PE. Boron nitride nanotubes (BNNTs) with unique physical and chemical properties have attracted considerable attention in drug delivery. Herein, a targeted drug delivery strategy based on folate-conjugated boron nitride nanotubes (BNNTs-FA) was used to improve the efficacy of PE. It was found that PE was successfully loaded onto BNNTs-FA via π-π stacking and hydrogen bonding interactions. BNNTs-FA@PE exhibited stronger cytotoxicity to Hep G2 cells than free PE and BNNTs@PE complexes due to the increased cellular uptake of PE mediated by the FA receptor. BNNTs-FA@PE showed excellent antiproliferative activities in a dose- and time-dependent manner. Furthermore, BNNTs-FA@PE induced Apoptosis of Hep G2 cells via an intrinsic mitochondria-mediated pathway by reducing the mitochondrial membrane potential, activating Caspase-9 and Caspase-3. The construction of BNNTs-FA@PE system successfully improves the target effect of PE and may be very promising for the treatment of liver Cancer in the future.

Keywords

Auristatin PE; Boron nitride nanotubes; Cytotoxicity; Targeted drug delivery.

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