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Abstract Title:

Withania somnifera modulates cancer cachexia associated inflammatory cytokines and cell death in leukaemic THP-1 cells and peripheral blood mononuclear cells (PBMC's).

Abstract Source:

BMC Complement Altern Med. 2018 Apr 10 ;18(1):126. Epub 2018 Apr 10. PMID: 29631586

Abstract Author(s):

Dhaneshree Bestinee Naidoo, Anil Amichund Chuturgoon, Alisa Phulukdaree, Kanive Parashiva Guruprasad, Kapaettu Satyamoorthy, Vikash Sewram

Article Affiliation:

Dhaneshree Bestinee Naidoo

Abstract:

BACKGROUND: Cancer and inflammation are associated with cachexia. Withania somnifera (W. somnifera) possesses antioxidant and anti-inflammatory potential. We investigated the potential of an aqueous extract of the root of W. somnifera (W) to modulate cytokines, antioxidants and apoptosis in leukaemic THP-1 cells and peripheral blood mononuclear cells (PBMC's).

METHODS: Cytotoxcity of Wwas determined at 24 and 72 h (h). Oxidant scavenging activity of Wwas evaluated (2, 2-diphenyl-1 picrylhydrazyl assay). Glutathione (GSH) levels, caspase (- 8, - 9, - 3/7) activities and adenosine triphosphate (ATP) levels (Luminometry) were thereafter assayed. Tumour necrosis factor-α (TNF-α), interleukin (IL)-6, IL-1β and IL-10 levels were also assessed using enzyme-linked immunosorbant assay.

RESULTS: At 24 h, W(0.2-0.4 mg/ml) decreased PBMC viability between 20 and 25%, whereas it increased THP-1 viability between 15 and 23% (p < 0.001). At 72 h, Wincreased PBMC viability by 27-39% (0.05, 0.4 mg/ml W) whereas decreased THP-1 viability between 9 and 16% (0.05-0.4 mg/ml W) (p < 0.001). Oxidant scavenging activity was increased by W(0.05-0.4 mg/ml, p < 0.0001). PBMC TNF-α and IL-10 levels were decreased by 0.2-0.4 mg/ml Wwhereas IL-1β levels were increased by 0.05-0.4 mg/ml W(p < 0.0001). In THP-1 cells, W(0.05-0.4 mg/ml) decreased TNF-α, IL-1β and IL-6 levels (p < 0.0001). At 24 h, GSH levels were decreased in PBMC's, whilst increased in THP-1 cells by 0.2-0.4 mg/ml W(p < 0.0001). At 72 h, W(0.1-0.4 mg/ml) decreased GSH levels in both cell lines (p < 0.0001). At 24 h, W(0.2-0.4 mg/ml) increased PBMC caspase (-8, -3/7) activities whereas W(0.05, 0.1, 0.4 mg/ml) increased THP-1 caspase (-9, -3/7) activities (p < 0.0001). At 72 h, PBMC caspase (-8, -9, -3/7) activities were increased at 0.05-0.1 mg/ml W(p < 0.0001). In THP-1 cells, caspase (-8, -9, -3/7) activities and ATP levels were increased by 0.1-0.2 mg/ml Wwhereas decreased by 0.05 and 0.4 mg/ml W(72 h, p < 0.0001).

CONCLUSION: In PBMC's and THP-1 cells, Wproved to effectively modulate antioxidant activity, inflammatory cytokines and cell death. In THP-1 cells, Wdecreased pro-inflammatory cytokine levels, which may alleviate cancer cachexia and excessive leukaemic cell growth.

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