Figure 4From: Investigation of HOXA9 promoter methylation as a biomarker to distinguish oral cancer patients at low risk of neck metastasis Re-expression of HOXA9 represses proliferation and colony formation and induces expression of BRCA1 . a. Proliferation of SCC4-HOXA9 and SCC4-empty vector cells. b. Colony formation by SCC4-HOXA9 and SCC4-empty vector cells. c. Endpoint PCR analysis of BRCA1 expression.Back to article page