Open Access

Frequency and distribution of CD4+CXCR5+ follicular B helper T cells within involved tissues in IgG4‑related ophthalmic disease

  • Authors:
    • Huimin Yang
    • Ruili Wei
    • Qiang Liu
    • Yongheng Shi
    • Jin Li
  • View Affiliations

  • Published online on: October 12, 2017     https://doi.org/10.3892/mmr.2017.7780
  • Pages: 9512-9520
  • Copyright: © Yang et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Immonoglobulin G4‑related ophthalmic disease (IgG4‑ROD) is a IgG4‑RD and exhibits two main characteristics: Fibrosis that is not necessarily marked histopathologically; and frequent formation of germinal centers (GCs). Follicular B helper T (Tfh) cells are now recognized as the true helper cells for B cells in antibody responses. In the present study, the profile and distribution of Tfh cells in involved tissues from patients with IgG4‑ROD was compared to those of type 1 autoimmune pancreatitis (AIP) and patients with IgG4‑related lymphadenopathy (IgG4‑RL). A total of 7 patients with IgG4‑ROD, 7 patients with type 1 AIP or IgG4‑RL and 7 IgG4‑negative controls were evaluated. The expression of Tfh‑cell immunological proteins, the inducible T‑cell costimulator, B‑cell lymphoma 6 protein, C‑X‑C chemokine receptor type 5 (CXCR5) and interleukin‑21 (IL‑21) in affected tissues was analyzed using immunohistochemical staining and dual immunofluorescence. It was demonstrated that patients with IgG4‑RD exhibited a significantly increased number of CD4+CXCR5+ Tfh cells compared with the IgG4‑negative controls. Furthermore, CD4+CXCR5+ Tfh cells were detected in and outside of GCs in patients with IgG4‑ROD and IgG4‑RLF, whereas CD4+CXCR5+ Tfh cells were randomly distributed in areas demonstrating type 1 AIP. Fewer CD4+CXCR5+ Tfh cells were observed in patients with type 1 AIP compared with patients with IgG4‑ROD and IgG4‑RL. In addition, increased expression of IL‑21 was observed in patients with IgG4‑ROD and IgG4‑RL compared with type 1 AIP. IL‑21 expression was positively correlated with the IgG4/IgG ratio in immunohistochemically‑positive cells. The results of the present study indicate that Tfh cells are involved in the histopathological pathogenesis of IgG4‑RD and may serve a different role in IgG4‑ROD and type 1 AIP. Tfh cells may serve a direct role in the IL‑21‑mediated pathogenesis of IgG4‑ROD.
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December-2017
Volume 16 Issue 6

Print ISSN: 1791-2997
Online ISSN:1791-3004

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Spandidos Publications style
Yang H, Wei R, Liu Q, Shi Y and Li J: Frequency and distribution of CD4+CXCR5+ follicular B helper T cells within involved tissues in IgG4‑related ophthalmic disease. Mol Med Rep 16: 9512-9520, 2017
APA
Yang, H., Wei, R., Liu, Q., Shi, Y., & Li, J. (2017). Frequency and distribution of CD4+CXCR5+ follicular B helper T cells within involved tissues in IgG4‑related ophthalmic disease. Molecular Medicine Reports, 16, 9512-9520. https://doi.org/10.3892/mmr.2017.7780
MLA
Yang, H., Wei, R., Liu, Q., Shi, Y., Li, J."Frequency and distribution of CD4+CXCR5+ follicular B helper T cells within involved tissues in IgG4‑related ophthalmic disease". Molecular Medicine Reports 16.6 (2017): 9512-9520.
Chicago
Yang, H., Wei, R., Liu, Q., Shi, Y., Li, J."Frequency and distribution of CD4+CXCR5+ follicular B helper T cells within involved tissues in IgG4‑related ophthalmic disease". Molecular Medicine Reports 16, no. 6 (2017): 9512-9520. https://doi.org/10.3892/mmr.2017.7780