Biocatalysis, Cell Proliferation, Ammonia - metabolism, Proline - metabolism, Humans, Tumor Microenvironment, Glutamate Dehydrogenase - genetics, Breast Neoplasms - enzymology, Animals, Amination, MCF-7 Cells, Breast Neoplasms - pathology, Aspartic Acid - metabolism, Female, Mice, Glutamate Dehydrogenase - metabolism, RNA, Small Interfering - metabolism, Phy...