AMP-Activated Protein Kinases/antagonists & inhibitors; Breast Neoplasms/drug therapy; Breast Neoplasms/enzymology; Enzyme Activators/pharmacology; Neoplasm Proteins/antagonists & inhibitors; Neoplasm Proteins/metabolism; Signal Transduction/drug effects; Sulfonamides/pharmacology; Thiazolidinediones/pharmacology; AMP-Activated Protein Kinases/genetics; AMP-Activated Protein Kinases/metabolism; Animals; Breast Neoplasms/genetics; Breast Neoplasms/pathology; Cell Line, Tumor; Energy Metabolism/drug effects; Energy Metabolism/genetics; Fatty Acids/biosynthesis; Fatty Acids/genetics; Female; Humans; Interleukin-6/biosynthesis; Interleukin-6/genetics; Lipopolysaccharides/pharmacology; Mice; Mice, Nude; Mitochondria/enzymology; Mitochondria/genetics; Neoplasm Proteins/genetics; Protein Phosphatase 2/genetics; Protein Phosphatase 2/metabolism; STAT3 Transcription Factor/biosynthesis; STAT3 Transcription Factor/genetics; Signal Transduction/genetics; Transcription Factors/genetics; Transcription Factors/metabolism