The results showed expressions of MMP-9 on the cell of ACC-M obvious higher than ACC-2.Itrevealed MMP-9 had close relation with invason and metastasis of SACC.

• MMP-9在ACC-M 细胞表达明显高于ACC-2细胞,提示MMP-9与ACC 的侵袭和转移有密切关系。