title: The in vitro and in vivo anti-tumor effect of layered double hydroxides nanoparticles as delivery for podophyllotoxin.
abstract: In this research, we intercalated anti-tumor drug podophyllotoxin (PPT) into layered double hydroxides (LDHs) and investigated the in vitro cytotoxicity to tumor cells, the cellular uptake and in vivo anti-tumor inhibition of PPT-LDH. The nanohybrids were prepared by a two-step method with the size of 80-90nm and the zeta potential of 20.3mV. The in vitro cytotoxicity experiment indicated that PPT-LDH nanoparticles show better anti-tumor efficacy than PPT and are more readily taken up by Hela cells. PPT-LDH shows a long-term suppression effect on the tumor growth, and enhances the apoptotic process of tumor cells. The in vivo tests reveal that delivery of PPT via LDH nanoparticles is more efficient, but the mice toxicity of PPT in PPT-LDH hybrids is reduced in comparison with PPT alone. Pharmacokinetics study displays a prolonged circulation time and an increased bioavailability of PPT-LDH than PPT. These observations imply that LDH nanoparticles are the potential carrier of anti-tumor drugs in a range of new therapeutic applications.
authors.affiliation: Shanghai Key Laboratory of Cell Signaling and Diseases, School of Life Science and Technology, Tongji University, Shanghai 200092, PR China.
authors.forename: Lili
authors.initials: L
authors.lastname: Qin
authors.forename: Meng
authors.initials: M
authors.lastname: Xue
authors.forename: Wenrui
authors.initials: W
authors.lastname: Wang
authors.forename: Rongrong
authors.initials: R
authors.lastname: Zhu
authors.forename: Shilong
authors.initials: S
authors.lastname: Wang
authors.forename: Jing
authors.initials: J
authors.lastname: Sun
authors.forename: Rui
authors.initials: R
authors.lastname: Zhang
authors.forename: Xiaoyu
authors.initials: X
authors.lastname: Sun
mesh_terms: D000818:Animals; D000970:Antineoplastic Agents / Q000008:administration & dosage / Q000493:pharmacokinetics / Q000494:pharmacology*; D017209:Apoptosis / Q000187:drug effects; D001682:Biological Availability; D002626:Chemistry, Pharmaceutical / Q000379:methods; D005260:Female; D006367:HeLa Cells; D006801:Humans; D006878:Hydroxides / Q000737:chemistry*; D051379:Mice; D008819:Mice, Nude; D053758:Nanoparticles; D009368:Neoplasm Transplantation; D009374:Neoplasms, Experimental / Q000188:drug therapy*; D011034:Podophyllotoxin / Q000008:administration & dosage / Q000493:pharmacokinetics / Q000494:pharmacology*; D013997:Time Factors
chemical_list: D000970:Antineoplastic Agents; D006878:Hydroxides; D011034:Podophyllotoxin