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Related Experiment Video

Updated: Apr 3, 2026

Rapid, Enzymatic Methods for Amplification of Minimal, Linear Templates for Protein Prototyping using Cell-Free Systems

Rapid, Enzymatic Methods for Amplification of Minimal, Linear Templates for Protein Prototyping using Cell-Free Systems

Published on: June 14, 2021

Novel DNA Polymer for Amplification Pretargeting.

Xiao Li¹, Qingqing Huang², Jie Xiao¹

¹Department of Nuclear Medicine, Zhongshan Hospital, Fudan University , Shanghai 200032, China.

ACS Medicinal Chemistry Letters

|September 24, 2015

Summary

This study introduces an amplification pretargeting strategy using novel DNA polymers to enhance effector accumulation in tumors. This approach significantly increases radioactive signals compared to conventional methods, showing promise for improved cancer targeting.

Keywords:

99mTc DNA polymer amplification pretargeting

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Single Droplet Digital Polymerase Chain Reaction for Comprehensive and Simultaneous Detection of Mutations in Hotspot Regions

Single Droplet Digital Polymerase Chain Reaction for Comprehensive and Simultaneous Detection of Mutations in Hotspot Regions

Published on: September 25, 2018

Area of Science:

Bioconjugation Chemistry
Molecular Imaging
Nanotechnology

Background:

Conventional pretargeting strategies face limitations in effector accumulation at target sites.
Developing novel methods to enhance effector delivery is crucial for improving therapeutic efficacy.

Purpose of the Study:

To design and evaluate a novel amplification pretargeting strategy using DNA polymers for enhanced effector accumulation in tumors.
To investigate the potential of oligomer polymers to improve pretargeting approaches in cancer therapy.

Main Methods:

Hybridization of phosphorothioate DNA strands (bridging and target) to form a polymer.
Characterization of polymer size using size exclusion High-Performance Liquid Chromatography (HPLC) and electrophoretic mobility shift assay.
Assessment of polymer binding efficiency with radiolabeled effectors and post-hybridization polymer size via HPLC.

Main Results:

The novel DNA polymer demonstrated successful hybridization and characterization of polymer size.
The amplification pretargeting strategy significantly increased radioactive signal accumulation in vitro compared to conventional pretargeting.
Proof-of-concept was validated through in vitro tests on antibody-binding protein L coated plates and LS174T cells.

Conclusions:

The developed amplification pretargeting strategy using DNA polymers effectively enhances effector accumulation in tumors.
This novel approach offers a significant improvement over conventional pretargeting, showing potential for advanced molecular imaging and therapy.
Oligomer polymers represent a promising paradigm for optimizing pretargeting strategies and related applications in oncology.