Inventors:
Robert J. Gillies - Tampa FL, US
David L. Morse - Tampa FL, US
Ariosto Siqueira Silva - Tampa FL, US
Arig A. Ibrahim Hashim - Tampa FL, US
Robert A. Gatenby - Tampa FL, US
Gary Martinez - Temple Terrace FL, US
Assignee:
H. Lee Moffitt Cancer Center and Research Institute, Inc. - Tampa
International Classification:
A61K 31/185, A61K 31/4172, A61P 35/04, A61K 31/14, A61P 35/00, A61K 31/495, A61K 31/198
US Classification:
51425212, 514400, 514578, 514564, 514642
Abstract:
A method of treating cancer or inhibiting metastasis in a subject by increasing intratumoral extracellular pH is presented. The method includes administering to the subject a therapeutically effective amount of a buffer having a pKa greater than 6.1. In an advantageous embodiment the pKa of the buffer is about 7.0. Examples of buffers for increasing extracellular pH include NaHCO, 2-imidazole-1-yl-3-ethoxycarbonylpropionic acid (IEPA), cholamine chloride, N,N-Bis(2-hydroxyethyl)-2-aminoethanesulfonic acid (BES), N-Tris(hydroxymethyl)methyl-2-aminoethanesulfonic acid (TES) and 4-(2-Hydroxyethyl)piperazine-1-ethanesulfonic acid (HEPES). The method can further include the step of pretreating with one or more chemotherapeutic agents.