TNF and psoriasis: Comparison of dermal MSCs between psoriasis patients and normal healthy people has shown that the expression of pro-inflammatory and angiogenesis-related mediators of MSCs in psoriasis patients is increased, such as lipopolysaccharide (LPS)-induced TNFα, transcription factor (LITAF), and vascular endothelial growth factor [96,97,98,99], Additionally, there is increased expression of angiogenic genes, such as TGF-β and the angiopoietin gene.