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2016 ; 7
(51
): 84486-84495
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gab.com Text
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English Wikipedia
Human sulfatase 1 exerts anti-tumor activity by inhibiting the AKT/ CDK4
signaling pathway in melanoma
#MMPMID27806323
Lou X
; Sun B
; Song J
; Wang Y
; Jiang J
; Xu Y
; Ren Z
; Su C
Oncotarget
2016[Dec]; 7
(51
): 84486-84495
PMID27806323
show ga
Human sulfatase 1 (hSulf-1) has aryl sulfatase activity. It can reduce the
sulfation of cell surface heparan sulfate proteoglycan (HSPG) and inhibit various
growth factor receptor-mediated signaling pathways. In most cancers, hSulf-1 is
inactivated, which endows cancer cells with increasesed cell proliferation and
metastatic activities, inhibition of apoptosis, and decreased sensitivity to
radio- and chemotherapy. In this study, we found that hSulf-1 overexpression in
melanoma cells can inhibit cell proliferation and induce cell cycle arrest and
apoptosis by decreasing the protein kinase B (AKT) phosphorylation and limiting
CDK4 nuclear import. We further confirmed that hSulf-1 overexpression can inhibit
AKT phosphorylation and CDK4 nuclear localization and retard the growth of
melanoma xenograft tumors in nude mice. Overall, hSulf-1 function in melanoma
cells provides an ideal molecular treatment target. An important anti-tumor
mechanism of hSulf-1 operates by decreasing downstream AKT signaling pathway
activity and inhibiting the nuclear import of CDK4.