PTEN and liver cancer: However, chemerin interferes with the interaction of PTEN-CMKLR1 to upregulate the expression of phosphatase and tensin homolog (PTEN) and the activity of phosphatase, resulting in weakened PTEN ubiquitination and decreased phosphorylation of AKT (p-AKT), thus inhibiting the migration, invasion and metastasis of liver cancer cells 30.