National Institute of Advanced Industrial Science and Technology

Yasuhiro Hashimoto

Hisashi Narimatsu

Yuzuru Ikehara

Atsushi Kuno

Hiromi Ito

Keiro Shirotani

Jun Hirabayashi

Hideki Matsuzaki

Kiyomitsu Nara

Satoshi Futakawa

Hajime Arai

Yoshinobu Kariya

Masakazu Miyajima

Kazuo Fujihara

Kyoka Hoshi

It is intended to develop and provide a method for detecting a particular glycan-isoform rapidly and specifically by a small number of steps. The present invention provides a glycan-isoform detection method comprising quantifying an immune complex formed by the mixing of a test sample with a sugar chain non-reducing terminal residue-binding lectin and an antibody specifically binding to the protein moiety of the glycan-isoform, etc., comparing the obtained amount of the immune complex with the amount of a control immune complex obtained when a control sample is not mixed with the sugar chain non-reducing terminal residue-binding lectin or is mixed with a control protein, and determining the presence or absence of the glycan-isoform of interest in the test sample on the basis of the difference between these amounts.

Glycoform detection method and glycoform detection device

The purpose of the present invention is to develop: a method for selectively separating a glycoprotein derived from the central nervous system from a body fluid or a central nervous system cell; and a method for searching for an index marker for central nervous system diseases, which utilizes the aforementioned method. A protein derived from the central nervous system, which occurs in a trace amount in a body fluid or a central nervous system cell, can be selectively enriched by a two-stage separation procedure comprising removing a glycoprotein having sialic acid at a non-reducing terminal thereof from the body fluid or the central nervous system cell and then separating a glycoprotein having N-acetylglucosamine at a non-reducing terminal thereof.

Method for enrichment and separation of spinal fluid glycoprotein, method for searching for marker for central nervous system diseases which utilizes the aforementioned method, and marker for central nervous system diseases

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Fukushima, Japan

Yasuhiro Hashimoto