| AA | Alopecia areata |
| hDPCs | Human dermal papilla cells |
| JAK | Janus kinase |
| S TAT | Signal transducers and activators of transcription protein |
| IL | Interleukin |
| IFN | Interferon |
| FBS | Fetal bovine serum |
| DMEM | Dulbecco Modified Eagle Medium |
| MTT | 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide |
| RT-PCR | Real time- polymerase Chain Reaction |
| HF | Hair follicle |