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International Journal of Medicinal Mushrooms
Импакт фактор: 1.423 5-летний Импакт фактор: 1.525 SJR: 0.431 SNIP: 0.661 CiteScore™: 1.38

ISSN Печать: 1521-9437
ISSN Онлайн: 1940-4344

Выпуски:
Том 22, 2020 Том 21, 2019 Том 20, 2018 Том 19, 2017 Том 18, 2016 Том 17, 2015 Том 16, 2014 Том 15, 2013 Том 14, 2012 Том 13, 2011 Том 12, 2010 Том 11, 2009 Том 10, 2008 Том 9, 2007 Том 8, 2006 Том 7, 2005 Том 6, 2004 Том 5, 2003 Том 4, 2002 Том 3, 2001 Том 2, 2000 Том 1, 1999

International Journal of Medicinal Mushrooms

DOI: 10.1615/InterJMedicMush.v5.i4.20
20 pages

Immunopotentiating Properties of Lentinan (1®3)-b-D-glucan Extracted from Culinary–Medicinal Shiitake Mushroom Lentinus edodes (Berk.) Singer (Agaric

Ann-Teck Yap
Department of Microbiology, Faculty of Medicine, National University of Singapore, Singapore
Mah-Lee Ng
Department of Microbiology, Faculty of Medicine, National University of Singapore, 5 Science Drive 2, Singapore 117597

Краткое описание

The immunopotentiating efficacy of lentinan, a fully purified (1®3)-b-D-glucan extracted from culinary–medicinal mushroom Lentinus edodes (Berk.) Singer was investigated both in vitro and in vivo. The oral administration of lentinan to AKR mice exerted strong antitumor activity, resulting in raised levels of lymphocytokines such as IFN-g, TNF-a, IL-2, and IL-1a. Tissue cultures of murine macrophages CRL-2019, B-lymphocytes HB-284, and T-lymphocytes CRL-8179, which were treated with lentinan, showed high levels of activation using flow cytometry. Activated immunocytes, particularly the T-helper cells by lentinan, might render the physiological constitutions of the host highly cancer and infection resistant. Adoptive immunotherapy of the immunodeficient mice such as the nude (athymic) mice, B-cell deficient mice, and SCID (severe combined immunodeficient) mice via the transfer of the lentinan-activated immunocytes resulted in the inhibition of tumor growth. Lentinan appeared to represent a unique class of host defense potentiators (HDP), protecting the hosts from the side effects of conventional therapeutic measures and improving various kinds of immunological parameters with no toxic side-effects in animal models.