Related Experiment Video
Updated: Jun 15, 2026
05:36
Quantifiable and Inexpensive Cell-Free Fluorescent Method to Confirm the Ability of Novel Compounds to Chelate Iron
Published on: February 23, 2024
Nanochemoprevention by bioactive food components: a perspective.
Imtiaz A Siddiqui1, Hasan Mukhtar
1Department of Dermatology, University of Wisconsin, Medical Sciences Center #B-25, 1300 University Avenue, Madison, Wisconsin 53706, USA.
Pharmaceutical Research
|March 12, 2010
Summary
Nanotechnology enhances cancer chemoprevention using bioactive food components like epigallocatechin-3-gallate (EGCG). Nano-encapsulated EGCG shows superior efficacy and dose advantage over non-encapsulated forms in preclinical cancer models.
Area of Science:
- Nanotechnology in Cancer Research
- Bioactive Food Components
- Chemoprevention Strategies
Background:
- Bioactive food components show promise for cancer chemoprevention but have limited clinical success.
- Inefficient delivery and bioavailability hinder the efficacy of these agents.
- Nanotechnology offers a novel approach to enhance chemoprevention outcomes.
Purpose of the Study:
- To establish the proof-of-principle for using nanotechnology in cancer management.
- To evaluate the efficacy of nano-encapsulated epigallocatechin-3-gallate (EGCG) for cancer chemoprevention.
- To demonstrate the potential of nanochemoprevention using bioactive food components.
Main Methods:
- Encapsulation of EGCG in polylactic acid (PLA)-polyethylene glycol (PEG) nanoparticles.
- Evaluation of nano-EGCG efficacy in cell culture systems.
- In vivo testing of nano-EGCG in athymic nude mice with human prostate cancer xenografts.
Main Results:
- Nano-EGCG retained biological efficacy compared to non-encapsulated EGCG.
- Nano-EGCG demonstrated over a 10-fold dose advantage in both cell culture and in vivo models.
- This study established the foundation for nanochemoprevention with bioactive food components.
Conclusions:
- Nanotechnology significantly enhances the delivery and efficacy of chemopreventive agents like EGCG.
- Nanochemoprevention holds promise for improving cancer control strategies.
- Future research will focus on developing orally consumable nanoparticles for enhanced chemoprevention.
Related Concept Videos
02:59Cancer Prevention
Several factors can increase the risk of cancer in an individual. About 50% of cancer cases can be prevented by adopting a healthy lifestyle, regular exercise, eating healthy, and following a modest cancer prevention diet. Epidemiological studies have consistently shown that populations with vegetable and fruit-rich diets have reduced the incidence of cancer. On the other hand, populations who have a diet rich in animal fat, red meat, junk food, or high calories are predisposed to cancer.
Some...
Some...
02:59Cancer Prevention
Several factors can increase the risk of cancer in an individual. About 50% of cancer cases can be prevented by adopting a healthy lifestyle, regular exercise, eating healthy, and following a modest cancer prevention diet. Epidemiological studies have consistently shown that populations with vegetable and fruit-rich diets have reduced the incidence of cancer. On the other hand, populations who have a diet rich in animal fat, red meat, junk food, or high calories are predisposed to cancer.
Some...
Some...
02:57Targeted 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 specific...
There are several types of targeted therapies against specific...
01:25Bioactivation and Tissue Toxicity
Bioactivation is a metabolic process that transforms less reactive substances into highly reactive metabolites, initiating tissue toxicity. This transformation can lead to various toxic effects, including carcinogenesis and teratogenesis. Reactive metabolites are classified into two main types: electrophiles and free radicals.Electrophiles are electron-deficient species and are produced primarily by the enzyme cytochrome P-450 during the metabolism of compounds containing carbon, nitrogen, or...
02:50Combination Therapies and Personalized Medicine
Combining two or more treatment methods increases the life span of cancer patients while reducing damage to vital organs or tissue from the overuse of a single treatment. Combination therapy also targets different cancer-inducing pathways, thus reducing the chances of developing resistance to treatment.
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...
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...
01:22Bioavailability Enhancement: Determination and Conceptual Approaches in Overcoming Bioavailability Problems
Bioavailability is a critical pharmacological concept that measures the extent and rate at which an active drug ingredient or therapeutic moiety enters the systemic circulation, remaining unchanged. It's a pivotal factor in determining a drug's efficacy and safety.The Biopharmaceutics Classification System (BCS) plays an essential role in drug development by categorizing drugs into four classes based on their solubility and permeability. This classification aids in understanding drug absorption...