Improved Recovery of Exfoliated Colonocytes from Feces Using Newly Developed Immunomagnetic Beads | Zendy

Yoshikatsu Koga | Zendy; Masahiro Yasunaga | Zendy; Satoshi Katayose | Zendy; Yoshihiro Moriya | Zendy; Takayuki Akasu | Zendy; Shin Fujita | Zendy; Seiichiro Yamamoto | Zendy; Hideo Baba | Zendy; Yasuhiro Matsumura | Zendy

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Improved Recovery of Exfoliated Colonocytes from Feces Using Newly Developed Immunomagnetic Beads

Author(s) -

Yoshikatsu Koga,

Masahiro Yasunaga,

Satoshi Katayose,

Yoshihiro Moriya,

Takayuki Akasu,

Shin Fujita,

Seiichiro Yamamoto,

Hideo Baba,

Yasuhiro Matsumura

Publication year - 2008

Publication title -

gastroenterology research and practice

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.622

H-Index - 45

eISSN - 1687-630X

pISSN - 1687-6121

DOI - 10.1155/2008/605273

Subject(s) - monoclonal antibody , immunomagnetic separation , feces , monoclonal , recovery rate , chromatography , antibody , microbiology and biotechnology , medicine , chemistry , biology , immunology

We demonstrated the feasibility of a new methodology for isolating colonocytes from feces. To reduce costs and improve the recovery rate of colonocytes from feces, we attempted to develop new immunomagnetic beads. Several sizes of magnetic beads were prepared and tagged with a monoclonal antibody against EpCAM. We made several new monoclonal antibodies against EpCAM, and each monoclonal antibody was tagged to the magnetic beads. In the simulation, the most efficient recovery of HT-29 cells was obtained using the smallest size of beads. Also, beads tagged with a monoclonal antibody with a higher affinity against EpCAM had a higher recovery rate. Similar results were obtained when the smallest size of beads with the highest-affinity monoclonal antibody was applied to clinical samples. The newly developed immunomagnetic beads may be useful for isolating colorectal cancer cells from feces, enabling the cytological or molecular biological diagnosis of CRC.

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