scholarly journals A Crucial Role of CXCL14 for Promoting Regulatory T Cells Activation in Stroke

Theranostics ◽  
2017 ◽  
Vol 7 (4) ◽  
pp. 855-875 ◽  
Author(s):  
Hsu-Tung Lee ◽  
Shih-Ping Liu ◽  
Chen-Huan Lin ◽  
Sophie Wei Lee ◽  
Chung Y. Hsu ◽  
...  
Keyword(s):  
T Cells ◽  
Regulatory T Cells ◽  
Crucial Role

scholarly journals Crucial role of FOXP3 in the development and function of human CD25+CD4+ regulatory T cells

2004 ◽  
Vol 16 (11) ◽  
pp. 1643-1656 ◽  
Author(s):  
Haruhiko Yagi ◽  
Takashi Nomura ◽  
Kyoko Nakamura ◽  
Sayuri Yamazaki ◽  
Toshio Kitawaki ◽  
...  
Keyword(s):  
T Cells ◽  
Regulatory T Cells ◽  
Crucial Role ◽  
And Function

scholarly journals The role of FoxP3+ regulatory T cells and IDO+ immune and tumor cells in malignant melanoma – an immunohistochemical study

BMC Cancer ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Satu Salmi ◽  
Anton Lin ◽  
Benjamin Hirschovits-Gerz ◽  
Mari Valkonen ◽  
Niina Aaltonen ◽  
...  
Keyword(s):  
T Cells ◽  
Prognostic Factors ◽  
Regulatory T Cells ◽  
Tumor Cells ◽  
Immune Cells ◽  
Positive Association ◽  
Tumor Stage ◽  
Melanoma Cells ◽  
Melanoma Progression

Abstract Background FoxP3+ Regulatory T cells (Tregs) and indoleamine-2,3-dioxygenase (IDO) participate in the formation of an immunosuppressive tumor microenvironment (TME) in malignant cutaneous melanoma (CM). Recent studies have reported that IDO expression correlates with poor prognosis and greater Breslow’s depth, but results concerning the role of FoxP3+ Tregs in CM have been controversial. Furthermore, the correlation between IDO and Tregs has not been substantially studied in CM, although IDO is known to be an important regulator of Tregs activity. Methods We investigated the associations of FoxP3+ Tregs, IDO+ tumor cells and IDO+ stromal immune cells with tumor stage, prognostic factors and survival in CM. FoxP3 and IDO were immunohistochemically stained from 29 benign and 29 dysplastic nevi, 18 in situ -melanomas, 48 superficial and 62 deep melanomas and 67 lymph node metastases (LNMs) of CM. The number of FoxP3+ Tregs and IDO+ stromal immune cells, and the coverage and intensity of IDO+ tumor cells were analysed. Results The number of FoxP3+ Tregs and IDO+ stromal immune cells were significantly higher in malignant melanomas compared with benign lesions. The increased expression of IDO in melanoma cells was associated with poor prognostic factors, such as recurrence, nodular growth pattern and increased mitotic count. Furthermore, the expression of IDO in melanoma cells was associated with reduced recurrence˗free survival. We further showed that there was a positive correlation between IDO+ tumor cells and FoxP3+ Tregs. Conclusions These results indicate that IDO is strongly involved in melanoma progression. FoxP3+ Tregs also seems to contribute to the immunosuppressive TME in CM, but their significance in melanoma progression remains unclear. The positive association of FoxP3+ Tregs with IDO+ melanoma cells, but not with IDO+ stromal immune cells, indicates a complex interaction between IDO and Tregs in CM, which demands further studies.

scholarly journals Role of IFNγ in Allograft Tolerance Mediated by CD4+CD25+Regulatory T Cells by Induction of IDO in Endothelial Cells

2007 ◽  
Vol 7 (11) ◽  
pp. 2472-2482 ◽  
Author(s):  
P. Thebault ◽  
T. Condamine ◽  
M. Heslan ◽  
M. Hill ◽  
I. Bernard ◽  
...  
Keyword(s):  
T Cells ◽  
Endothelial Cells ◽  
Regulatory T Cells
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