Human Thymic Stromal Lymphopoietin Enhances Expression of CD80 in Human CD14+ Monocytes/macrophages
Overview
Pathology
Affiliations
Objective: Human thymic stromal lymphopoietin (TSLP), an epithelial cell-derived cytokine, promotes inflammatory T helper type 2 cell (Th2) differentiation of naive CD4(+) T cells. TSLP is highly produced in keratinocytes of patients with atopic dermatitis and bronchial epithelia of patients with asthma and was thought to be a master switch for allergic inflammation. We sought to examine the effect of TSLP in human monocytes/macrophages.
Methods: The effect of TSLP on the expression of cell surface antigens (CD11c, CD16, CD54, CD80, CD86, and HLA-DR) in peripheral blood CD14(+) monocytes/macrophages was examined.
Results: TSLP enhanced the expression of CD80 in peripheral blood CD14(+) monocytes/macrophages but not that of other cell surface antigens. It was associated with an increased percentage of CD14(dim/-), CD80(+), CD11c(+), and HLA-DR(+) cells, which was consistent with the increased differentiation of myeloid dendritic cells.
Conclusions: TSLP induces CD80 expression in human peripheral blood CD14(+) monocytes/macrophages; this indicates monocyte/macrophage activation. This may be associated with their differentiation into myeloid dendritic cells.
Exploring thymic stromal lymphopoietin in the breast cancer microenvironment: A preliminary study.
Marcella S, Braile M, Grimaldi A, Soricelli A, Smaldone G Oncol Lett. 2025; 29(4):182.
PMID: 40007626 PMC: 11851057. DOI: 10.3892/ol.2025.14928.
Brister D, Omer H, Whetstone C, Ranjbar M, Gauvreau G Biomolecules. 2024; 14(4).
PMID: 38672419 PMC: 11048646. DOI: 10.3390/biom14040401.
Severe Asthmatic Responses: The Impact of TSLP.
Theofani E, Tsitsopoulou A, Morianos I, Semitekolou M Int J Mol Sci. 2023; 24(8).
PMID: 37108740 PMC: 10142872. DOI: 10.3390/ijms24087581.
Klimek L, Hagemann J, Welkoborsky H, Cuevas M, Casper I, Forster-Ruhrmann U Allergol Select. 2022; 6:148-166.
PMID: 35572064 PMC: 9097524. DOI: 10.5414/ALX02296E.
The Role of Airway Epithelial Cell Alarmins in Asthma.
Whetstone C, Ranjbar M, Omer H, Cusack R, Gauvreau G Cells. 2022; 11(7).
PMID: 35406669 PMC: 8997824. DOI: 10.3390/cells11071105.