| http://www.w3.org/ns/prov#value | - In some cancers, such as melanomas and gliomas, SPARC is associated with a highly aggressive tumor phenotype, while in others, mainly ovarian cancer, neuroblastoma and colorectal cancer, SPARC may function as a tumor suppressor [127-129].A major function of SPARC is its involvement in collagen deposition, as demonstrated in tumors transplanted in Sparc-/- mice: g
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