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Related Concept Videos

Site-Targeted Drug Delivery Systems: Polymeric Carriers01:24

Site-Targeted Drug Delivery Systems: Polymeric Carriers

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Polymeric carriers enhance targeted drug delivery by increasing efficacy while minimizing off-target effects. These carriers comprise a biodegradable polymeric backbone integrated with functional elements that enable targeting, improve physicochemical properties, and regulate drug release.Targeting MechanismsThe targeting ability of polymeric carriers is mediated by a homing device, which is a molecular recognition component designed to selectively bind to specific tissues or cells. Monoclonal...
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Modified-Release Drug Delivery Systems: Site-Targeted01:24

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Site-targeted drug delivery systems enhance therapeutic efficacy while minimizing systemic toxicity and treatment costs. Unlike conventional methods, these systems ensure precise drug delivery, improving bioavailability and reducing side effects. Targeted drug delivery is classified into three levels. First-order targeting directs drugs to the capillary beds of specific organs or tissues. Second-order targets specific cell types, such as tumor cells, using receptor-mediated interactions.
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Targeted Cancer Therapies02:57

Targeted Cancer Therapies

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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...
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Preparation and Characterization of Lipophilic Doxorubicin Pro-drug Micelles
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Trigger responsive polymeric nanocarriers for cancer therapy.

Shahdeep Kaur1, Chandrashekhar Prasad, Biji Balakrishnan

  • 1Nanomedicine Laboratory, Department of Biosciences & Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai, Maharashtra, India. rinti@iitb.ac.in.

Biomaterials Science
|July 30, 2015
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Summary
This summary is machine-generated.

Polymeric nanocarriers offer improved cancer treatment by targeting tumors and releasing drugs based on internal or external triggers. This review explores trigger-responsive nanocarriers for enhanced chemotherapy efficacy and reduced toxicity.

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Area of Science:

  • Biomaterials Science
  • Nanotechnology
  • Oncology

Background:

  • Conventional chemotherapy faces challenges with systemic toxicity and limited tumor specificity.
  • Polymeric nanocarriers can enhance drug accumulation at tumor sites through passive and active targeting strategies.
  • Incorporating trigger responsiveness into nanocarriers improves anticancer efficacy by controlling drug release within the tumor environment.

Purpose of the Study:

  • To review strategies for preparing trigger-responsive polymeric nanocarriers for cancer therapy.
  • To provide an overview of the current state-of-the-art in this field.
  • To highlight the potential of responsive nanocarriers in overcoming chemotherapy limitations.

Main Methods:

  • Review of literature on trigger-responsive polymeric nanocarriers.
  • Analysis of internal triggers (pH, redox, enzymes) and external triggers (temperature, magnetic field, ultrasound, light).
  • Discussion of strategies for nanocarrier preparation and drug release modulation.

Main Results:

  • Trigger-responsive nanocarriers demonstrate enhanced drug delivery to tumors.
  • Internal and external triggers offer specific and controlled drug release mechanisms.
  • These systems show potential for improved therapeutic outcomes in cancer treatment.

Conclusions:

  • Trigger-responsive polymeric nanocarriers represent a promising advancement in cancer therapy.
  • Modulating drug release via environmental cues enhances efficacy and minimizes side effects.
  • Further research into nanocarrier design and application is warranted for clinical translation.