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Immunoprecipitation

Immunoprecipitation

Immunoprecipitation, or IP, is a widely used technique that employs protein-antibody interactions to isolate proteins or protein complexes in their native state for studying protein-protein interactions, quaternary structures, or supramolecular complexes. Various modifications of the technique, including chromatin IP, cross-linking IP, and fluorescence IP, are commonly used.
Chromatin Immunoprecipitation
Chromatin immunoprecipitation, also known as ChIP, is used to study protein-DNA or...

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Tryptophan complexed hydroxyapatite nanoparticles for immunoglobulin adsorption.

Sunita Prem Victor¹, Chandra P Sharma

¹Division of Biosurface Technology, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Science and Technology, Poojappura, Thiruvananthapuram, 695012, Kerala, India.

Journal of Materials Science. Materials in Medicine

|August 2, 2011

Summary

This study introduces a novel nanoparticle adsorbent for selective immunoglobulin removal, crucial for autoimmune disease treatment. The cost-effective hydroxyapatite matrix shows promise for plasma perfusion applications.

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Area of Science:

Biomaterials Science
Nanotechnology
Immunology

Background:

Selective immunoglobulin removal is vital for treating autoimmune diseases.
Existing affinity adsorbents require optimization for efficiency and cost-effectiveness.

Purpose of the Study:

To develop and characterize a novel nanosized hydroxyapatite adsorbent for immunoglobulin adsorption.
To evaluate the synergistic effect of cyclodextrin and tryptophan modification on adsorption capacity.
To assess the safety and applicability of the adsorbent for plasma perfusion.

Main Methods:

Fabrication of cyclodextrin-complexed hydroxyapatite nanoparticles modified with tryptophan.
Characterization using XRD, TEM, FT-IR, TG, and DSC.
Assessment of immunoglobulin adsorption via PAGE, Lowry assay, and turbidimetric assay.
Cytotoxicity evaluation using MTT assay.

Main Results:

The modified hydroxyapatite nanoparticles demonstrated effective immunoglobulin adsorption.
Cyclodextrin exhibited a synergistic effect, enhancing adsorption affinity.
The adsorbent showed a favorable cytotoxicity profile, indicating safety.
The material is cost-effective and suitable for plasma perfusion.

Conclusions:

Modified nanosized hydroxyapatite with cyclodextrin and tryptophan is a promising adsorbent for selective immunoglobulin removal.
This approach offers a cost-effective and adaptable solution for autoimmune disease therapy via plasma perfusion.