Abstract Title:

Curcumin and Rutin Down-regulate Cyclooxygenase-2 and Reduce Tumor-associated Inflammation in HPV16-Transgenic Mice.

Abstract Source:

Anticancer Res. 2018 03 ;38(3):1461-1466. PMID: 29491072

Abstract Author(s):

Magda S S Moutinho, Sofia Aragão, Diogo Carmo, Fátima Casaca, Sandra Silva, Joana Ribeiro, Hugo Sousa, Isabel Pires, Felisbina Queiroga, Bruno Colaço, Rui Medeiros, Paula A Oliveira, Carlos Lopes, Margarida M S M Bastos, Rui M Gil DA Costa

Article Affiliation:

Magda S S Moutinho


AIM: Cyclo-oxygenase-2 (COX2) plays a prominent role in carcinogenesis. This study addresses the effects of two nutraceutical compounds on the expression of COX2 and tumor-associated inflammation in human papillomavirus type 16 (HPV16)-transgenic mice.

MATERIALS AND METHODS: Six-week-old FVB/n mice were supplemented with rutin or curcumin for 24 weeks: HPV16no treatment, n=12; HPV16no treatment, n=13; HPV16rutin, n=12; HPV16curcumin, n=13. HPV16-induced skin lesions and their inflammatory infiltrates were studied histologically. COX2 expression was assessed immunohistochemically.

RESULTS: Rutin reduced COX2 expression in the dermis (immunostaining score 7.83 versus 11.25 in untreated HPV16-transgenic mice) and epidermis (4.5 versus 10.0). Curcumin led to dermal and epidermal scores of 10.5 and 4.5. Both compounds reduced leukocytic infiltration, but neither prevented epidermal dysplasia.

CONCLUSION: COX2 expression in HPV16-induced lesions may be modulated by nutraceuticals, reducing tumor-associated inflammation. However, this was not sufficient to block carcinogenesis, calling for additional studies focused on combination therapies.

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