MKK7 (also called MAP2K7) is a dual-specificity MAP kinase kinase that selectively activates the JNK (c-Jun N-terminal kinase) pathway. In cancer, MKK7 is a context-dependent stress signaling node that can drive apoptosis and tumor suppression or support adaptation, inflammation, and therapy resistance, depending on signal strength, duration, and cellular background.
Frequently dysregulated rather than simply up- or down-regulated
Observed patterns:
-Loss or suppression → reduced stress-induced apoptosis
-Chronic low-level activation → inflammation, survival signaling
MKK7 is a cell-fate switch, not a growth driver.
Cancer survives by blunting or reshaping MKK7–JNK signaling so that stress no longer triggers mitochondrial commitment to death. When MKK7 signaling is restored or sharpened, cancer cells often become highly vulnerable.
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