Mammalian Cell Signaling Targets

Mammalian Cell Signaling Targets refers to a broad and heterogeneous group of proteins and pathways responsible for transmitting extracellular signals to the interior of the cell to elicit specific biological responses (NIH, 2023). This category encompasses various classes of molecules, including G protein-coupled receptors (GPCRs), receptor tyrosine kinases (RTKs), and intracellular signaling cascades such as the MAPK/ERK and PI3K/Akt/mTOR pathways (Nature Reviews Drug Discovery, 2021). These targets are fundamental to maintaining cellular homeostasis, regulating growth, differentiation, and survival (StatPearls, 2023). Dysregulation of these signaling pathways is a hallmark of numerous diseases, most notably cancer, where constitutive activation of growth signals drives malignancy (PubMed, 2022). Because this term represents a vast collection of distinct molecular entities rather than a single therapeutic target, it is considered too broad for specific drug development or clinical annotation without further refinement into individual components (UniProt, 2024).

Other names

Cell signaling pathwaysSignal transduction targetsMammalian signaling molecules

Various mechanisms including inhibition, activation, and modulation of specific signaling nodes within mammalian cells.