Components of Shh pathway (smoothened, patched, Gli1 and Gli2).
Sonic Hedgehog (SHH) is a key signaling protein involved in various developmental processes, including cell growth, differentiation, and tissue patterning. The SHH signaling pathway is crucial during embryonic development, but its dysregulation can lead to several types of cancer.
The SHH pathway is activated when the SHH protein binds to its receptor, Patched (PTCH). This interaction relieves the inhibition of another protein, Smoothened (SMO), leading to the activation of downstream signaling that promotes cell proliferation and survival.
In many cancers, SHH and its downstream signaling components are often overexpressed. This overexpression can lead to increased cell proliferation, survival, and tumor growth.
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