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Heparin-binding Epidermal Growth Factor-like Growth Factor (HB-EGF)

Target: HB-EGF
Molecular classification: Growth Factor, EGF Family Member

Overview

Heparin-binding EGF-like growth factor (HB-EGF) is a member of the EGF family that exists in both membrane-bound (pro-HB-EGF) and soluble forms. It binds to EGFR/ErbB1 and ErbB4 receptors, stimulating cell proliferation, migration, and survival. It plays roles in wound healing, cardiac development, and organ regeneration. Overexpression is associated with tumor progression and metastasis, making it a potential therapeutic target but also raising safety concerns.

Other names: Diphtheria toxin receptorHBEGF

Mechanism of action

Activation of EGFR/ErbB1 and ErbB4 receptor tyrosine kinases, leading to downstream signaling cascades (PI3K/AKT, MAPK)

Biological functions

Cell proliferationCell migrationCell survivalCell differentiationWound healingAngiogenesisCardiac developmentOrgan regenerationChemotaxis

Disease associations

CancerTumor progressionMetastasisHyperplasiaAtherosclerosisVascular disease

Safety considerations

Potential for promoting tumor growth and metastasis if targeted therapeutically.May promote organ hyperplasia.

Interacting drugs

Diphtheria toxin

Biomarkers

HB-EGF expression levels in tumors (e.g., lung adenocarcinoma, ovarian cancer, cervical cancer, breast cancer)

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