Effect of doxorubicin on cytokine production by lymphocytes and the Th1/Th2 balance

Autor(es)

Santos, R. V. T. ^{[1, 2]} ; Caperuto, E. C. ^[3] ; de Mello, M. T. ^[1] ; Costa Rosa, L. F. B. P. ^[3]

Afiliação do(s) autor(es)

^[1] Univ Fed Sao Paulo, Dept Psychobiol, Sao Paulo - Brazil

^[2] Univ Fed Sao Paulo Baixada Santista, Dept Biosci, Ctr Estudos Psicobiol & Exercicio, BR-04020060 Sao Paulo - Brazil

^[3] Univ Sao Paulo, Inst Biomed Sci, BR-09500900 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: BIOMEDICINE & PHARMACOTHERAPY; v. 64, n. 8, p. 579-581, OCT 2010.
• Citações Web of Science: 3

Resumo

Doxorubicin (DOXO) is a potent chemotherapeutic used mainly against solid tumours; however, it has several side effects that can limit its clinical use. On the other hand, the effect of DOXO upon lymphocyte function is controversial. Some studies demonstrate that DOXO administration in vitro suppresses T-cell activation, while the cellular function has been shown to increase in vitro. The objective of this study was to investigate the effect of DOXO on lymphocyte cytokine production in rats. The animals were divided into: SAL (control, n = 10) and DOX (DOXO treated, n = 10). The DOX group received only one DOXO dose at 15 kg Kg(-1) by intraperitoneal injection. Forty-eight hours after DOXO administration, the animals were killed by decapitation. IL-2 production was significantly enhanced (p < 0.05) in lymphocytes from rats treated with DOXO (169.17 +/- 21.73 pg mL 10(5) cell) as compared to cells from SAL (45.92 +/- 10.53 pg mL 10(5) cell). The administration of DOXO decreased (<0.05) IL-4 production in the DOXO group (29.85 +/- 13.09 pg mL 10(5) cell) relative to the SAL group (75.08 +/- 15.31 pg mL 10(5) cell). The IL-2/IL-4 ratio was higher (<0.05) in the DOX group (5.99 +/- 0.44), as compared to SAL group (0.73 +/- 0.12). In conclusion, our results suggest that a dose of DOXO promotes an alteration in the Th1/Th2 balance, promoting a shift towards a Th1-dominant cytokine response. (C) 2010 Elsevier Masson SAS. All rights reserved. (AU)

• Processo FAPESP: 01/13766-4 - Os efeitos do treinamento moderado sobre o metabolismo muscular de glutamina e seu papel na manutenção da glutaminemia
• Beneficiário: Ronaldo Vagner Thomatieli dos Santos
• Modalidade de apoio: Bolsas no Brasil - Doutorado Direto