3.8 Article

Ameliorative effects of type-A procyanidins polyphenols from cinnamon bark in compound 48/80-induced mast cell degranulation

Journal

ANATOMY & CELL BIOLOGY
Volume 50, Issue 4, Pages 275-283

Publisher

MEDRANG
DOI: 10.5115/acb.2017.50.4.275

Keywords

Cinnamomum zeylanicum; Type-A procyanidin polyphenols; Mast cell degranulation inhibition

Funding

  1. Indus Biotech Private Limited, Pune, India

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Allergic diseases are a significant health concern in developing countries. Type-A procyanidin polyphenols from cinnamon (Cinnamomum zeylanicum Blume) bark (TAPP-CZ) possesses antiasthmatic and antiallergic potential. The present study was aimed at the possible anti-allergic mechanism of TAPP-CZ against the compound 48/80 (C48/80)-induced mast cell degranulation in isolated rat peritoneal mast cells (RPMCs). TAPP-CZ (1, 3, 10, and 30 mu g/ml) was incubated for 3 hours with isolated, purified RPMCs. The C48/80 (1 mu g/ml) was used to induce mast cell degranulation. The mast cell viability was assessed using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay whereas histamine, beta-hexosaminidase (beta-HEX), and interleukin-4 (IL-4) levels were determined in RPMCs. TAPP-CZ (3, 10, and 30 mu g/ml) showed significant and dose-dependent decrease in a number of degranulated cells and levels of markers (histamine, beta-HEX, and IL-4) as compared with C48/80 control. In conclusion, TAPP-CZ stabilizes mast cell and cause inhibition of the allergic markers such as histamine, IL-4, and beta-HEX in IgE-mediated manner. The present study supports mast cell stabilization as a possible mechanism of action of TAPP-CZ against immune respiratory disorders such as asthma and allergic rhinitis.

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