alexa Selective Adsorption of Immunoglobulin G and Immunoglobulin M from Plasma without Adsorption of Fibrinogen by Using Thienyl Amino Acids as Ligands | OMICS International | Abstract
ISSN: 2157-7064

Journal of Chromatography & Separation Techniques
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Research Article

Selective Adsorption of Immunoglobulin G and Immunoglobulin M from Plasma without Adsorption of Fibrinogen by Using Thienyl Amino Acids as Ligands

Yoshihiro Hatanaka1,2, Misuzu Tsukiji2, Akira Itoh2 and Tetsuya Haruyama1*

1Department of Biological Functions and Engineering, Kyushu Institute of Technology, Kitakyushu Science and Research Park, Fukuoka, Japan

2Asahi Kasei Medical Co., Ltd., Japan

*Corresponding Author:
Tetsuya Haruyama
Department of Biological Functions and Engineering
Kyushu Institute of Technology
Kitakyushu Science and Research Park
Fukuoka, Japan
E-mail: [email protected]

Received Date: June 17, 2013; Accepted Date: June 25, 2013; Published Date: June 27, 2013

Citation: Hatanaka Y, Tsukiji M, Itoh A, Haruyama T (2013) Selective Adsorption of Immunoglobulin G and Immunoglobulin M from Plasma without Adsorption of Fibrinogen by Using Thienyl Amino Acids as Ligands. J Chromatograph Separat Techniq 4:190. doi: 10.4172/2157-7064.1000190

Copyright: © 2013 Hatanaka Y, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

In vitro adsorption of plasma proteins such as immunoglobulin (Ig)-G and IgM without the removal of albumin and fibrinogen forms the basis of the field of therapeutic immunoadsorption. In the present study, we investigated the activities of adsorbents with thienyl amino acids, tryptophan, or phenylalanine as ligands. IgG adsorption by an adsorbent with a thienyl amino acid ligand was lower than that by an adsorbent with a tryptophan ligand but higher than that by an adsorbent with a phenylalanine ligand. On the other hand, IgM adsorption by an adsorbent with a thienyl amino acid ligand was higher than that by adsorbents with tryptophan and phenylalanine ligands. The adsorption of fibrinogen onto the adsorbent with a thienyl amino acid ligand was far lesser than its adsorption onto the adsorbents with tryptophan and phenylalanine ligands. Adsorbents with thienyl amino acid ligands may therefore be useful for removing antibodies produced in autoimmune diseases. Further in vitro biocompatibility studies, in vivo animal studies, and clinical trials are required to confirm these results.

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