TSLP and atopic eczema: This, in turn, increased the production of the granulocyte macrophage colony stimulating factor (GM-CSF), a cytokine that promotes neutrophil proliferation and maturation, and thymic stromal lymphopoietin (TSLP), a cytokine that is known to play an important role in the maturation of T cell populations and involved in the onset of atopic dermatitis [34,35,36].