Systematic review with meta‐analysis: the effectiveness of either ustekinumab or vedolizumab in patients with Crohn's disease refractory to anti‐tumour necrosis factor

Author(s):  
Laurène Parrot ◽  
Catherine Dong ◽  
Franck Carbonnel ◽  
Antoine Meyer



2016 ◽  
Vol 18 (7) ◽  
pp. 667-675 ◽  
Author(s):  
E. J. de Groof ◽  
S. Sahami ◽  
C. Lucas ◽  
C. Y. Ponsioen ◽  
W. A. Bemelman ◽  
...  


Author(s):  
Vandita Y. Mattoo ◽  
Chamara Basnayake ◽  
William R. Connell ◽  
Nik Ding ◽  
Michael A. Kamm ◽  
...  




The Lancet ◽  
1997 ◽  
Vol 349 (9051) ◽  
pp. 521-524 ◽  
Author(s):  
WA Stack ◽  
SD Mann ◽  
AJ Roy ◽  
P Heath ◽  
M Sopwith ◽  
...  


2019 ◽  
Vol 13 (7) ◽  
pp. 905-915 ◽  
Author(s):  
Shrinivas Bishu ◽  
Mohammed El Zaatari ◽  
Atsushi Hayashi ◽  
Guoqing Hou ◽  
Nicole Bowers ◽  
...  

Abstract Background and Aims Tumour necrosis factor [TNF]α- and IL-17A-producing T cells are implicated in Crohn’s disease [CD]. Tissue-resident memory T [TRM] cells are tissue-restricted T cells that are regulated by PR zinc finger domain 1 [PRDM1], which has been implicated in pathogenic Th17 cell responses. TRM cells provide host defence but their role in CD is unknown. We thus examined CD4+ TRM cells in CD. Methods Colon samples were prospectively collected at endoscopy or surgery in CD and control subjects. Flow cytometry and ex vivo assays were performed to characterise CD4+ TRM cells. Results CD4+ TRM cells are the most abundant memory T cell population and are the major T cell source of mucosal TNFα in CD. CD4+ TRM cells are expanded in CD and more avidly produce IL-17A and TNFα relative to control cells. There was a unique population of TNFα+IL-17A+ CD4+ TRM cells in CD which are largely absent in controls. PRDM1 was highly expressed by CD4+ TRM cells but not by other effector T cells. Suppression of PRDM1 was associated with impaired induction of IL17A and TNFA by CD4+ TRM cells Conclusions CD4+ TRM cells are expanded in CD and are a major source of TNFα, suggesting that they are important in CD. PRDM1 is expressed by TRM cells and may regulate their function. Collectively, this argues for prospective studies tracking CD4+ TRM cells over the disease course.



2020 ◽  
Author(s):  
Judith Pichler ◽  
Nima Memaran ◽  
Wolf Dietrich Huber ◽  
Christoph Aufricht ◽  
Bettina Bidmon‐Fliegenschnee


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