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Abstract Title:

Sesame seeds essential oil and Sesamol modulate the pro-inflammatory function of macrophages and dendritic cells and promote Th2 response.

Abstract Source:

Med J Islam Repub Iran. 2018 ;32:98. Epub 2018 Oct 10. PMID: 30788333

Abstract Author(s):

Samaneh Khorrami, Saeed Daneshmandi, Ghasem Mosayeb

Article Affiliation:

Samaneh Khorrami

Abstract:

Herbal medicine is becoming progressively accepted treatment for management of different diseases worldwide. Recognition of the active ingredients and mechanisms of herbal medicine against the immune system and related anomalies is highly favorable. This experimental study aimed to investigate the effects of Sesame (Sesamum indicum L.) essential oil and sesamol as effective components on mouse splenocytes subsets, macrophages and dendritic cells (DCs).Effective components of sesame were extracted and used to treat splenocytes, PHA (5μg/ml) and LPS (10 μg/ml) stimulated splenocytes, macrophages and DCs in different concentration (0.01-100 μg/ml). The cell proliferation/viability was measured using the MTT assay and nitrite levels were measured by the diazotization method. Moreover, TNF-α and IL-1β cytokines concentration were assayed by ELISA. Treated DCs also analysed for maturation marker levels and cytokine production.Analysis of the results indicated that sesame components suppress PHA-stimulated splenocytes with no effect on LPS-stimulated subsets. Furthermore, the sesame ingredients reduced the release of IFN-γ and increased secretion of IL-4 from lymphocytes. Macrophages viability was not affected and production of NO, TNF-α, and IL-1β were inhibited using sesame essential oil and sesamol. DCs phenotype skewed to immature and release of TNF-α and IL-1β were abrogated form DCs.These results indicate that sesame essential oil and its effective component as sesamol may capable of suppressing the response of cellular immunity with the domination of Th2 responses and also could modulate macrophages and the dendritic cells proinflammatory functions.

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Sayer Ji
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