The cell-mediated immunity and cytotoxic agents play a significant role on tumor cell apoptosis.
Tumor necrosis factor-α (TNF-α) is an intricate linker between inflammation and cancer through
mediating the process of apoptosis and cell-mediated immunity. A variety of evidences have confirmed
the critical role of TNF-α on tumor migration, proliferation, matrix degradation, tumor metastasis,
invasion, and angiogenesis. Through binding to receptors, TNF-α participates in activating multiple
cell signaling cascades that link inflammation, survival and evolution towards breast cancer. TNF-α is
an important agent for tumor biotherapy, but its clinical application is limited for its severe fatal systemic toxicity. The
poly-lactic acid microspheres (PLAM) with intratumoral cytokine release hold tremendous potential for the immunotherapy
of breast cancer, and TNF-α antagonists may offer therapeutic potential in solid tumors. In addition, TNF-α is related
with the blockage of estrogen and progesterone receptors. For breast cancer treatment, it is necessary to understand the
molecular signaling pathways that mediate TNF-α and the aggressive behavior of negative breast cancer. The aim of present
review is to summarize the effect of TNF-α on breast cancer cells.
Keywords: TNF-α, breast cancer, signal pathway, tumor biotherapy, estrogen, tumor proliferation.
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