Both cell immunochemistry and RT-PCR showed that TCF4 gene expressed in aggregated dermal papilla cells, but not in non-aggregated dermal papilla cells.

• 细胞免疫化学和RT-PCR发现，TCF4基因在凝集性生长期毛乳头细胞中表达，而在非凝集性生长期毛乳头细胞不表达。