Analysis of Cytokine Production in the Colon of Nude Mice with Experimental Colitis Induced by Adoptive Transfer of Immunocompetent Cells from Mice Infected with a Murine Retrovirus

2000 ◽  
Vol 97 (1) ◽  
pp. 33-42 ◽  
Author(s):  
Hidehisa Suriki ◽  
Kenji Suzuki ◽  
Yasuyuki Baba ◽  
Katsuhiko Hasegawa ◽  
Rintaro Narisawa ◽  
...  
2011 ◽  
Vol 2011 ◽  
pp. 1-13 ◽  
Author(s):  
Manuel Oliveira ◽  
Nabil Bosco ◽  
Genevieve Perruisseau ◽  
Jeanne Nicolas ◽  
Iris Segura-Roggero ◽  
...  

Studies showed that specific probiotics provide therapeutic benefits in inflammatory bowel disease.In vitroevidence suggested thatLactobacillus paracaseialso called ST11 (CNCM I-2116) is a potent strain with immune modulation properties. However, little is known about its capacity to alleviate inflammatory symptomsin vivoIn this context, the main objective of this study was to investigate the role of ST11 on intestinal inflammation using the adoptive transfer mouse model of experimental colitis. Rag2-/-recipient mice were fed with ST11 (109CFU/day)a month prior toinduce colitis by adoptive transfer of naive T cells. One month later, in clear contrast to nonfed mice, weight loss was significantly reduced by 50% in ST11-fed mice. Further analysis of colon specimens revealed a significant reduction neutrophil infiltration and mucosal expression of IL1β, IL-6, and IL12 proinflammatory cytokines, whereas no consistent differences in expression of antibacterial peptides or tight junction proteins were observed between PBS and ST11-fed mice. All together, our results demonstrate that oral administration of ST11 was safe and had a significant preventive effect on colitis. We conclude that probiotics such asLactobacillus paracaseiharbor worthwhilein vivoimmunomodulatory properties to prevent intestinal inflammation by nutritional approaches.


1995 ◽  
Vol 82 (11) ◽  
pp. 1479-1482 ◽  
Author(s):  
P. J. D. Neilly ◽  
K. R. Gardiner ◽  
S. J. Kirk ◽  
G. Jennings ◽  
N. H. Anderson ◽  
...  

Blood ◽  
2001 ◽  
Vol 98 (4) ◽  
pp. 1239-1245 ◽  
Author(s):  
Kuo-Jang Kao ◽  
Eileen S. Huang ◽  
Sandra Donahue

Transfusions of UV-B–irradiated peripheral blood mononuclear cells (UV-B–PBMCs) from BALB/c (H-2d) mice into CBA (H-2k) mice can induce humoral immune tolerance to H-2d antigens, and the induced tolerance is partially mediated by negative regulatory PBMCs. To further identify which subset of spleen mononuclear leukocytes (MNLs) in the tolerant CBA mice is responsible for the negative regulatory activity, adoptive transfer experiments were conducted using spleen MNLs from the tolerant CBA mice. Results showed that only CD4+ T cells could transfer the negative regulatory activity in a dose-dependent manner. This negative regulatory activity was significantly reduced when CD25+ helper T cells were removed. Further study suggested that inhibition of IL-12 production by UV-B–irradiated PBMCs played a role in the induction of immune tolerance. In vitro study of the cytokine production profile by CBA CD4+ T cells, after stimulation with gamma-irradiated BALB/c spleen cells, revealed an enhanced production of the type 2 T-cell cytokines after tolerance induction. Induction of tolerance also prevented the development of cytotoxic T cells in CBA mice against BALB/c MNLs. Adoptive transfer study suggested that the cellular immune tolerance was also mediated by CD4+ negative regulatory T cells. The induced immune tolerance was nullified after 400 cGy sublethal gamma irradiation. These results suggest that the ex vivo study of cytokine production by T cells may be used to monitor tolerance induction and the selection of gamma radiation dose is critical for potential clinical application of the tolerance induced by UV-B–PBMCs.


2004 ◽  
Vol 137 (6) ◽  
pp. 568-571 ◽  
Author(s):  
G. T. Sukhikh ◽  
N. Yu. Sotnikova ◽  
Yu. S. Antsiferova ◽  
L. V. Posiseeva ◽  
V. N. Veryasov ◽  
...  

1995 ◽  
Vol 86 (6) ◽  
pp. 562-567 ◽  
Author(s):  
Hideaki Iseki ◽  
Naoko Kajimura ◽  
Chiharu Ohue ◽  
Rie Tanaka ◽  
Yasuto Akiyama ◽  
...  

1981 ◽  
Vol 19 (1) ◽  
pp. 39-48 ◽  
Author(s):  
Dwight M. Williams ◽  
John R. Graybill ◽  
David J. Drutz

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