Explore the disease pathogenesis
VHL disease is caused by the mutation of the VHL gene,
which leads to a functional loss of VHL protein.1
Many functions have been attributed to
the VHL protein. These are largely
divided into HIF-dependent or HIF-independent processes.1,2
HIF-dependent1–5
- HIF-dependent processes are involved
in oxygen sensing and adaptive
response to hypoxia. - Dysregulation of these processes may result in angiogenesis, cellular proliferation and migration, and erythropoiesis, which are linked to tumorigenesis.
HIF-independent3,4
- VHL protein regulates a number of HIF-independent processes, including regulation of extracellular
matrix,
primary cilium, mitosis, and DNA repair. - Dysregulation of these processes
may contribute to development of
cysts or dysplasia.
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Due to the dysregulation of these processes, many patients with VHL disease present with cysts and tumors in multiple organs.1,3,4
VHL = von Hippel-Lindau; HIF = hypoxia-inducible factor; DNA = deoxyribonucleic acid.