Chem. J. Chinese Universities ›› 2016, Vol. 37 ›› Issue (2): 224.doi: 10.7503/cjcu20150662

• Articles: Inorganic Chemistry • Previous Articles     Next Articles

Preparation of Hyaluronic Acid-modified Mesoporous Silica-coated Gold Nanorods and Their Application in Chemo-Photothermal Therapy of Cancer

JIN Xintian1,2, LIU Gang2, LI Junzhe2, SUN Lili2, WANG Junrong2, LI Junfeng3, LI Pei2, CHEN Wenqing2, WANG Qiang2, TONG Ti1,*()   

  1. 1. The Second Hospital of Jilin University, Changchun 130041, China
    2. The Jilin Province Cancer Hospital, Changchun 130021, China
    3. The Hospital of Jilin Agricultural University, Changchun 130118, China
  • Received:2015-08-20 Online:2016-02-10 Published:2016-01-13
  • Contact: TONG Ti E-mail:TTi666@163.com

Abstract:

A tumor-targeting multifunctional drug delivery system was obtained through modifying mesoporous silica-coated gold nanorods with biocompatible hyaluronic acid. The experimental results demonstrated hyaluronic acid could be modified on the surface of mesoporous silica through the formation of amide bond. The resulted drug carrier could realize enzyme-responsive drug release in the presence of hyaluronidase. UV-Vis spectra showed that the system had a high absorption in the near infrared region, thus exhibiting photothermal effect upon the near infrared light irradiation. Besides, cell experiments demonstrated the multifunctional drug carrier could effectively target CD44 over-expressed breast cancer cells. It could be accumulated in the tumor region through CD44 receptor mediated endocytosis. Combining chemo- and photothermal therapy resulted in improved tumor apoptosis efficiency.

Key words: Mesoporous silica, Gold nanorods, Hyaluronic acid, Chemo-photothermal therapy

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