Related Experiment Video
Updated: Feb 7, 2026

Anticancer Efficacy of Photodynamic Therapy with Lung Cancer-Targeted Nanoparticles
Published on: December 1, 2016
Tumor-targeting core-shell structured nanoparticles for drug procedural controlled release and cancer sonodynamic
Lei Wang1, Yujie Hu2, Yongwei Hao1
1School of Pharmaceutical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou 450001, China; Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases, Zhengzhou 450001, PR China; Collaborative Innovation Centre of New Drug Research and Safety Evaluation, Henan Province, 100 Kexue Avenue, Zhengzhou 450001, PR China.
Abstract:
Combination therapy with multiple drugs or/and multiple assistant treatments has become a hot spot in cancer therapy. In this study, a new type of core-shell structured dual-drug delivery system based on poly (lactic-co-glycolic acid) (PLGA, inner cores) and hyaluronic acid (HA, outer shells) was constructed. Firstly, HA was conjugated to PLGA for preparation of HA-PLGA block copolymer. Secondly, 5-amino levulinic acid (ALA) was connected to PLGA through a pH-sensitive hydrazone bond for synthesization of PLGA-HBA-ALA. Finally, the core-shell structured nanoparticles (HA-PLGA@ART/ALA NPs) were constructed by self-assembled method for artemisinin (ART) loading in PLGA cores. In this co-delivery system, ALA and ART can be released in a manner of procedural controlled release. ALA was released from the NPs at first though the pH sensitive hydrazone bond cleavage in order to generate protoporphyrin IX (PpIX) for heme formation. And the increase of heme can effectively improve the curative effect of the subsequent released ART. Furthermore, this system has also shown obvious sonodynaimc activity which can be used for cancer sonodynamic combination therapy. The in vitro and in vivo anticancer results demonstrate that HA-PLGA@ART/ALA delivery system could provide a prospective comprehensive treatment strategy for cancer therapy.
More Related Videos
10:13A Brain Tumor/Organotypic Slice Co-culture System for Studying Tumor Microenvironment and Targeted Drug Therapies
Published on: November 7, 2015
08:57Sample Extraction and Simultaneous Chromatographic Quantitation of Doxorubicin and Mitomycin C Following Drug Combination Delivery in Nanoparticles to Tumor-bearing Mice
Published on: October 5, 2017
Related Concept Videos
Targeted Cancer Therapies
There are several types of targeted therapies against...
Cancer Therapies
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
Drug Therapy
Antianxiety Medications
The Nucleosome Core Particle
The paradox
Nucleosomes, paradoxically, perform two opposite functions simultaneously. On the one hand, their main responsibility is to protect the delicate DNA strands from physical damage and help achieve a higher compaction ratio. While on the other hand, they must allow polymerase enzymes to access DNA...
Combination Therapies and Personalized Medicine
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
Drugs Affecting Neurotransmitter Release or Uptake