scholarly journals The Role of Donor CD4+T Cells in the Reconstitution of Oral Immunity by Herpes Simplex Virus Type 1 in Severe Combined Immunodeficiency Mice

2002 ◽  
Vol 185 (4) ◽  
pp. 409-416 ◽  
Author(s):  
Hiroshi Irie ◽  
Kiyoshi Aita ◽  
A. Hajime Koyama ◽  
Akio Fukuda ◽  
Takeshi Yoshida ◽  
...  
2001 ◽  
Vol 120 (5) ◽  
pp. A136-A137
Author(s):  
K TSAMAKIDES ◽  
E PANOTOPOULOU ◽  
D DIMITROULOPOULOS ◽  
M CHRISTOPOULO ◽  
D XINOPOULOS ◽  
...  

1994 ◽  
Vol 75 (11) ◽  
pp. 3127-3135 ◽  
Author(s):  
H. S. Marsden ◽  
M. Murphy ◽  
G. L. McVey ◽  
K. A. MacEachran ◽  
A. M. Owsianka ◽  
...  

2006 ◽  
Vol 87 (12) ◽  
pp. 3483-3494 ◽  
Author(s):  
Sven Hoppe ◽  
Mario Schelhaas ◽  
Verena Jaeger ◽  
Timo Liebig ◽  
Philipp Petermann ◽  
...  

The aim of this study was to understand how molecular determinants of epithelial cells influence initial infection by herpes simplex virus type 1 (HSV-1). Upon infection of the epithelial MDCKII cell line, enhanced association of virus particles with cells forming actin protrusions was observed, suggesting a putative role of actin dynamics in HSV-1 infection. Thus, the impact of the small Rho-like GTPases Rac1, Cdc42 and RhoA acting as key regulators of actin dynamics was addressed. Endogenous Rac1 and Cdc42 were temporarily activated at 15 and 30 min after HSV-1 infection. When constitutively active Cdc42 or Rac1 mutants were expressed transiently, a significant decrease in infectivity was observed, whereas expression of RhoA mutants had no influence. Furthermore, dominant-negative Cdc42 led to decreased infectivity, whereas dominant-negative Rac1 had no effect. So far, the study of potential effectors indicated that Rac1/Cdc42 mutants inhibited infectivity independently of p21-activated kinase (Pak1). The inhibitory effect of Rac1/Cdc42 mutant expression on HSV-1 infection was characterized further and it was found that binding, internalization and transport of HSV-1 were not affected by expression of Rac1/Cdc42 mutants. Thus, these results provide the first evidence for a role of Rac1/Cdc42 signalling during early HSV-1 infection and suggest a mechanism relying on virus-induced regulation of Rac1/Cdc42 activities.


Eye ◽  
1994 ◽  
Vol 8 (3) ◽  
pp. 298-306 ◽  
Author(s):  
Richard R Tamesis ◽  
Elisabeth M Messmer ◽  
Beverly A Rice ◽  
James E Dutt ◽  
C Stephen Foster

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