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International Journal of Medicinal Mushrooms
IF: 1.423 5-Year IF: 1.525 SJR: 0.433 SNIP: 0.661 CiteScore™: 1.38

ISSN Print: 1521-9437
ISSN Online: 1940-4344

International Journal of Medicinal Mushrooms

DOI: 10.1615/IntJMedMushrooms.v18.i3.10
pages 191-202

Immunochemical Cross-Reactivity of β-Glucan in the Medicinal Plant, Sasa veitchii (Japanese Folk Medicine Kumazasa), and Medicinal Mushrooms

Wataru Sato
Tokyo University of Pharmacy and Life Science, Tokyo
Mia Yoshida
Hoshi Pharmaceutical Co., Ltd.; Tokyo University of Pharmacy and Life Sciences
Ken-Ichi Ishibashi
Laboratory for Immunopharmacology of Microbial Products, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo, Japan
Kazuo Takeshita
Hoshi Pharmaceutical Co., Ltd., Tokyo, Japan
Masamichi Tsuboi
Hoshi Pharmaceutical Co., Ltd, Tokyo
Masato Kanamori
Hoshi Pharmaceutical Co., Ltd, Tokyo
Noriko N. Miura
Laboratory for Immunopharmacology of Microbial Products, School of Pharmacy, Tokyo University of Pharmacy and Life Science, Tokyo, Japan
Yoshiyuki Adachi
Laboratory for Immunopharmacology of Microbial Products, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo, Japan
Naohito Ohno
Laboratory for Immunopharmacology of Microbial Products, Tokyo University of Pharmacy and Life Science, Tokyo, Japan

ABSTRACT

Fungal β-glucan is a representative pathogen-associated molecular pattern from mushroom, yeast, and fungi and stimulates innate as well as acquired immune systems. This β-glucan is widely applied in functional food to enhance immunity. Humans and animals generally become sensitized to this β-glucan and gradually produce specific antibodies to β-glucans. The extracts of plants have been used as folk medicine and are reported to possess various biological activities that are beneficial for human health, such as antitumor, antiallergic, and anti-inflammatory activities. In the present study, the immunochemical cross-reactivity of Sasa extract and fungal β-glucan was analyzed. We found that the anti−β-glucan antibody in human sera strongly cross-reacted with the Sasa extract. This result strongly suggested that plant extracts modulate the immunostimulating effects of medicinal mushrooms. The cooperative effects of plants and mushrooms may be an important issue for functional foods.


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