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Updated: May 11, 2026

Evaluation of Polymeric Gene Delivery Nanoparticles by Nanoparticle Tracking Analysis and High-throughput Flow Cytometry
Published on: March 1, 2013
Esterase-responsive nanoparticles (ERN): A targeted approach for drug/gene delivery exploits
Ashok Kumar Madikonda1, Amritha Ajayakumar1, Sudeena Nadendla2
1Department of Biochemistry & Molecular Biology, Central University of Kerala, Tejaswini Hills, Periye, Kasaragod 671320, Kerala, India.
Esterase-responsive nanoparticles improve cancer drug delivery by targeting tumors more specifically. This approach enhances therapeutic payload release at the tumor site, minimizing side effects and improving treatment efficacy.
Area of Science:
- Biomedical Engineering
- Nanotechnology
- Oncology
Background:
- Nanoparticles enhance drug delivery to tumors via the enhanced permeability and retention (EPR) effect.
- Traditional nanoparticles lack specificity, causing inefficient delivery and side effects.
- Esterase-responsive nanoparticles offer targeted drug release at tumor sites.
Purpose of the Study:
- Review the role of esterase-responsive nanoparticles in drug and gene delivery.
- Examine esterase prodrug therapy.
- Discuss the application of PSMA-targeted esterase-responsive nanoparticles in prostate cancer.
Main Methods:
- Literature review of esterase-responsive nanoparticles in cancer therapy.
- Analysis of esterase activity for targeted drug release mechanisms.
- Evaluation of prostate-specific membrane antigen (PSMA) as a target for nanoparticle delivery.
Main Results:
- Esterase-responsive nanoparticles demonstrate improved targeting and payload release in tumors.
- Esterase prodrug strategies show potential for localized cancer treatment.
- PSMA-targeted nanoparticles show promise for prostate cancer therapy.
Conclusions:
- Esterase-responsive nanoparticles represent a promising strategy for targeted cancer drug and gene delivery.
- Further research is needed to optimize these systems for clinical application.
- These targeted nanoparticles hold significant potential for improving cancer treatment outcomes.
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