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Keratinocyte Proliferation Pathway
- Molecular classification
- Signaling Pathway, Cellular Process
01
Overview
The keratinocyte proliferation pathway refers to the network of molecular signals and cellular processes that regulate the growth and division of keratinocytes, the predominant cell type in the epidermis. This pathway is essential for skin homeostasis, wound healing, and barrier function. Key components include growth factors (EGF, TGF-α, FGFs, oncostatin M, IL-17A), MAPK/ERK and PI3K/Akt signaling, and transcription factors (p63, STAT3). Dysregulation can lead to hyperproliferative disorders like psoriasis and skin cancers.
- Other names
- Epidermal Proliferation PathwayKeratinocyte Growth SignalingSkin Cell Proliferation Network
02
Mechanism of action
Varies depending on the specific molecule targeted within the pathway. Examples include inhibition of MAPK/ERK, PI3K/Akt/mTOR, or modulation of transcription factor activity.
03
Biological functions
Cell proliferationCell cycle regulationWound healingSkin homeostasisBarrier function
04
Disease associations
PsoriasisSkin CancerHyperproliferative disordersInflammation
05
Safety considerations
Uncontrolled proliferation leading to hyperplasia or cancerPotential for off-target effects affecting other cell typesDevelopment of resistance to targeted therapies
06
Interacting drugs
Vitamin A analogues
2 more in the full profile.
07
Biomarkers
Expression levels of proliferation markers (e.g., Ki-67)Activation status of signaling molecules (e.g., phosphorylated ERK, Akt, STAT3)Levels of cytokines and growth factors (e.g., EGF, TGF-α, IL-17A)p63 expression
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