Objective To observe the growth kinetics of dermal papilla cells and dermal sheath cells from human hair follicles in vitro and the effect of epidermal growth factor (EGF) on them.

目的观察人正常头皮毛囊真皮成分的细胞体外培养的生长繁殖曲线及表皮细胞生长因子对它们的影响。

youdao

The basilar papilla was formed by two types of hair cells(tall and short)and supporting cells.

柯蒂氏器由支持细胞和两型毛细胞（高毛细胞和矮毛细胞）组成；

youdao

Although it is understandably tight-lipped about the exact mechanism behind its success, one probably enlists the help of cells called keratinocytes, which interact naturally with the dermal papilla cells of the hair follicle and secrete a chemical factor that supports their growth.

ECONOMIST: A cure for baldness

Intercytex's second approach seems to involve culturing the dermal papilla cells with proteins that take part in signalling during the process that creates hair.

ECONOMIST: A cure for baldness

That observation is only useful, though, if you can multiply dermal papilla cells and do so in a way that allows them to keep their ability to induce hair growth.

ECONOMIST: A cure for baldness