T follicular Helper Cells pp 175-186 | Cite as
Human Tfh and Tfr Cells: Identification and Assessment of Their Migration Potential
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Abstract
The ability of follicular T cells to migrate into B-cell follicles is central for them to participate in germinal center responses. The chemokine receptor CXCR5 is expressed by both Tfh and Tfr cells and is the defining marker for follicular T cells. In addition, Tfh and Tfr cells express additional chemokine receptors to enable them to interact with B cells and other cell types. CXCR5+ Tfh and Tfr cells are divided into CCR7+ perifollicular cells and CCR7− follicular cells. Most of the CXCR5+ CCR7− Tfh cells reside in germinal centers and are called GC T cells. The methods to identify human Tfh and Tfr cell subsets based on chemokine receptors and other antigens and assess their migration potential are provided in this article.
Key words
Human Tfh Tfr CXCR5 CCR7 Foxp3 Germinal center ChemotaxisNotes
Acknowledgment
This work was supported, in part, from grants from NIH (R01AI074745, R01DK076616, 1S10RR02829, and R01AI080769), USDA-NIFA, Crohn’s and Colitis Foundation of America, and National Multiple Sclerosis Society to CHK. The authors thank Benjamin Ramsey (Purdue University) for his assistance in preparation of this manuscript. None of the authors have a financial interest related to this work.
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