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Deprecated: Implicit conversion from float 265.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Oncotarget 2015 ; 6 (11): 8890-9 Nephropedia Template TP
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Dual effects of collagenase-3 on melanoma: metastasis promotion and disruption of vasculogenic mimicry #MMPMID25749207
Zhao X; Sun B; Li Y; Liu Y; Zhang D; Wang X; Gu Q; Zhao J; Dong X; Liu Z; Che N
Oncotarget 2015[Apr]; 6 (11): 8890-9 PMID25749207show ga
Vasculogenic mimicry (VM) is a functional microcirculation formed by tumor cells. Matrix metalloproteinases (MMPs), especially MMP-2 and MMP-9, promote VM formation. Another specific MMP, collagenase-3 (MMP-13), has broad substrate specificity and potentially affects tumor metastasis and invasion. Here we found that MMP-13 was associated with metastasis and poor survival in 79 patients with melanoma. MMP-13 expression was inversely correlated with VM. These results were confirmed in human and mouse melanoma cell lines. We found that MMP-13 cleaves laminin-5 (Ln-5) into small fragments to accelerate tumor metastasis. Degradation of Ln-5 and VE-cadherin by MMP-13 inhibited VM formation. In conclusion, MMP-13 has a dual effect in melanoma, as it promotes invasion and metastasis but disrupts VM formation.