Cancer therapy combination: green tea and a phosphodiesterase 5 inhibitor?

Cancer therapy combination: green tea and a phosphodiesterase 5 inhibitor?

The major constituent of green tea, (-)-epigallocatechin-3-O-gallate (EGCG), has been shown to have cancer-preventive and therapeutic activities. Numerous molecular targets for EGCG have been proposed, but the mechanisms of its anticancer activities are not clearly understood. In this issue of the JCI, Kumazoe et al. report that EGCG activates 67-kDa laminin receptor (67LR), elevates cGMP level...

Combination therapy with bosentan and phosphodiesterase-5 inhibitor in pulmonary arterial hypertension.

therapy to control lung damage in patients with common variable immunodeficiency. Int Immunopharmacol 2004; 6: 745–753. 4 de Gracia J, Morell F, Bofill JM, Rodrigo MJ, Cosculluela C. Impaired lung function in patients with IgA deficiency and low levels of IgG2 or IgG3. N Engl J Med 1986; 314: 925–926. 5 de Gracia J, Miravitlles M, Vendrell M, Rodrigo MJ, Codina R, Morell F. Study of the IgG sub...

Primary Cancer Prevention by Green Tea, and Tertiary Cancer Prevention by the Combination of Green Tea Catechins and Anticancer Compounds

Green tea is a daily beverage, a non-oxidized non-fermented product containing at least four green tea catechins. Considering our first results when repeated applications of (-)-epigallocatechin gallate (EGCG) prevented tumor promotion in mouse skin, we have continued to look at green tea as a possible cancer preventive agent. 1) The 10-year prospective cohort study by Drs. K. Nakachi and K. Im...

Green tea and tea polyphenols in cancer prevention.

The cancer-preventive effects of green tea and its main constituent (-)-epigallocatechin gallate [(-)-EGCG] are widely supported by results from epidemiological, cell culture, animal and clinical studies in the recent decade. In vitro cell culture studies show that tea polyphenols potently induce apoptotic cell death and cell cycle arrest in tumor cells but not in their normal cell counterparts...

Green tea: a tea or a remedy?