Abstract
To quantify the expression of angiogenic growth factors (ANG2, VEGFA, TGFß1) and their corresponding receptors (VEGFR1, VGFR2, NRP1 and TGFßR1) in human dental pulps from extracted third molars with complete and incomplete root development. Fifty-six dental pulp samples obtained from freshly extracted human third molars were divided equallyinto two groups according to their stage ofroot development; 28 third molars with complete root development and 28 third molars with incomplete root development. All samples were processed and total RNA was extracted, cDNA was then synthetized for each sample and the target genes expression profiles for ANG2, VEGFA, VEGFR1, VEGFR2, NRP1, TGFß1 and TGFßR1 were obtained by RT2-PCR. The data was analysed with a Student's t-test to compare the replicate ∆∆Ct values for each gene. Teeth with incomplete root development were associated with a significantly greater gene expression of TGFβR1 (P=0.03), whereas in teeth with complete root development the genes that had significantly greater expression were VEGFA (P=0.04). The angiogenic growth factors (ANG2, VEGFA, TGFβ1) and their receptors (NRP1, VEGFR1, VEGFR2 and TGFßR1) were expressed in pulps of teeth with complete and incomplete root development measured by RT2-PCR, with TGFBR1 genes being significantly different in teeth with incomplete root development and VEGFA genes in teeth with complete root development.
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