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. 2021 Apr 27;10(5):1027. doi: 10.3390/cells10051027

Figure 7.

Figure 7

Histoarchitectonics of CTLA-4(+) tonsillar cells when stained with antibodies of the AA 57-86 clone. (a) Localization of CTLA-4(+) in the reticular epithelium. (b) Location of CTLA-4(+) cells in the interfollicular cords of lymphoid tissue. (c–c″) CD3-negative CTLA-4(+) cell in extra-follicular zone of tonsil. (d–d″) CD45-negative CTLA-4(+) cells with granulocyte-like cytoplasmic formations. (e–e″) CD45+ and CTLA-4(+) cell. (f–f″) Expression of vimentin in a CTLA-4(+) cell. Scale bar: 50 µm (a,b), 10 µm (c–f).