Fig. 6From: Heat-killed Prevotella intermedia promotes the progression of oral squamous cell carcinoma by inhibiting the expression of tumor suppressors and affecting the tumor microenvironmentAltered serum cytokine levels by heat-killed P. intermedia in mice with transplanted tumors. The data are expressed as the mean ± SD and were analyzed using a t test. **P < 0.01, ***P < 0.001, ****P < 0.0001Back to article page