Life-or-death decisions.

Antigens, Differentiation/physiology Apoptosis/physiology Bone Morphogenetic Proteins/physiology Cell Survival/physiology Gene Expression Regulation Intracellular Signaling Peptides and Proteins JNK Mitogen-Activated Protein Kinases MAP Kinase Kinase 4 MAP Kinase Signaling System Mitogen-Activated Protein Kinase Kinases/antagonists & inhibitors,physiology Models, Biological NF-kappa B/antagonists & inhibitors,physiology Proteins/physiology Tumor Necrosis Factor-alpha/physiology X-Linked Inhibitor of Apoptosis Protein

Antigens, Differentiation Bone Morphogenetic Proteins GADD45 protein Intracellular Signaling Peptides and Proteins NF-kappa B Proteins Tumor Necrosis Factor-alpha X-Linked Inhibitor of Apoptosis Protein JNK Mitogen-Activated Protein Kinases MAP Kinase Kinase 4 Mitogen-Activated Protein Kinase Kinases