Stimuli-responsive nanoscale drug delivery systems for cancer therapy

Li Li1,2, Wu-Wei Yang1, Dong-Gang Xu2

  • 1a Department of Oncology Minimally Invasive , Hospital of PLA, Clinical College of Anhui Medical University , Beijing , PR China.

Journal of Drug Targeting
|September 4, 2018
PubMed

Insights

Stimuli-responsive drug delivery systems (DDSs) using nanocarriers offer targeted tumor treatment. These advanced DDSs improve efficacy and reduce side effects compared to traditional chemotherapy.

Area of Science:

  • Nanotechnology
  • Biomedical Engineering
  • Materials Science

Background:

  • Conventional chemotherapy faces limitations including systemic toxicity, short drug half-life, and low tumor site concentration.
  • Novel nanocarrier-based drug delivery systems (DDSs) are crucial for advancing tumor treatment.
  • Stimuli-responsive DDSs offer targeted drug delivery to tumor sites, overcoming conventional drug limitations.

Purpose of the Study:

  • To review the research and development of novel stimuli-responsive DDSs for tumor treatment.
  • To discuss the classification and applications of nanomaterials in stimuli-responsive DDSs.
  • To highlight the clinical potential of these advanced drug delivery systems.

Main Methods:

  • Categorization of stimuli-responsive nanomaterials based on physicochemical properties and structure.
  • Review of endogenous stimuli-responsive materials (pH, enzyme, redox).
  • Review of exogenous stimuli-responsive materials (temperature, light, ultrasound, magnetic field) and multi-stimuli responsive materials.

Main Results:

  • Stimuli-responsive DDSs enable controlled drug release through precise responses to internal or external stimuli.
  • These systems enhance therapeutic effects by increasing drug concentration at tumor sites.
  • Reduced damage to normal tissues and organs, and fewer side effects are achieved.

Conclusions:

  • Stimuli-responsive DDSs represent a significant advancement in targeted cancer therapy.
  • Nanomaterials are key components in developing effective stimuli-responsive DDSs.
  • Further research and clinical applications of these DDSs hold great promise for improving patient outcomes.

Related Concept Videos

Cancer Therapies02:49

Cancer Therapies

Cancer therapies are various modes of treatment, such as surgery, radiation therapy, and chemotherapy that are administered to cancer patients.
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...
10.2K
Drug Therapy01:28

Drug Therapy

The advent of drug therapy has profoundly shaped modern mental health care, providing targeted treatments for a range of psychological disorders. Psychotherapeutic drugs, classified into antianxiety, antidepressant, and antipsychotic medications, address symptoms across anxiety disorders, mood disorders, and schizophrenia. While these medications have transformed patient outcomes, they require careful management due to their potential side effects and limitations.
Antianxiety Medications
301
Targeted Cancer Therapies02:57

Targeted Cancer Therapies

The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
8.9K
Drug Delivery: Overview01:16

Drug Delivery: Overview

The selection of a drug's delivery route depends upon its physicochemical properties, including lipid or water solubility and ionization, as well as the therapeutic requirement, such as immediate or sustained effect. These routes can be divided into three primary categories: enteral, parenteral, and topical.
Enteral delivery involves administering drugs directly through swallowing, sublingual placement, or buccal application. Orally administered drugs predominantly navigate the...
879