Abstract 48: Characterization of Human Papillomavirus (HPV) Sequence and Integration and Analysis of Immune Response Genes for Application in Guatemalan Cervical Cancer

Author(s):  
Nicole Rossi ◽  
Michael Dean
2003 ◽  
Vol 77 (9) ◽  
pp. 5464-5474 ◽  
Author(s):  
Katja Nilges ◽  
Hanni Höhn ◽  
Henryk Pilch ◽  
Claudia Neukirch ◽  
Kirsten Freitag ◽  
...  

ABSTRACT Human papillomavirus type 16 (HPV16) E6 and E7 oncoproteins are required for cellular transformation and represent candidate targets for HPV-specific and major histocompatibility complex class I-restricted CD8+-T-cell responses in patients with cervical cancer. Recent evidence suggests that cross-reactivity represents the inherent nature of the T-cell repertoire. We identified HLA-A2 binding HPV16 E7 variant peptides from human, bacterial, or viral origin which are able to drive CD8+-T-cell responses directed against wild-type HPV16 E7 amino acid 11 to 19/20 (E711-19/20) epitope YMLDLQPET(T) in vitro. CD8+ T cells reacting to the HLA-A2-presented peptide from HPV16 E711-19(20) recognized also the HLA-A2 binding peptide TMLDIQPED (amino acids 52 to 60) from the human coronavirus OC43 NS2 gene product. Establishment of coronavirus NS2-specific, HLA-A2-restricted CD8+-T-cell clones and ex vivo analysis of HPV16 E7 specific T cells obtained by HLA-A2 tetramer-guided sorting from PBL or tumor-infiltrating lymphocytes obtained from patients with cervical cancer showed that cross-reactivity with HPV16 E711-19(20) and coronavirus NS252-60 represents a common feature of this antiviral immune response defined by cytokine production. Zero of 10 patients with carcinoma in situ neoplasia and 3 of 18 patients with cervical cancer showed ≥0.1% HPV16 E7-reactive T cells in CD8+ peripheral blood lymphocytes. In vivo priming with HPV16 was confirmed in patients with cervical cancer or preinvasive HPV16-positive lesions using HLA-A2 tetramer complexes loaded with the E6-derived epitope KLPQLCTEL. In contrast, we could not detect E6-reactive T cells in healthy individuals. These data imply that the measurement of the HPV16 E711-19(20) CD8+-T-cell response may reflect cross-reactivity with a common pathogen and that variant peptides may be employed to drive an effective cellular immune response against HPV.


2016 ◽  
Vol 29 (2) ◽  
pp. 83-94 ◽  
Author(s):  
Lourdes Gutierrez-Xicotencatl ◽  
Dolores Azucena Salazar-Piña ◽  
Adolfo Pedroza-Saavedra ◽  
Lilia Chihu-Amparan ◽  
Angelica Nallelhy Rodriguez-Ocampo ◽  
...  

1996 ◽  
Vol 102 (1-2) ◽  
pp. 173-181 ◽  
Author(s):  
Cheng-Yang Chou ◽  
Yen-Hui Chen ◽  
Ching-Cherng Tzeng ◽  
Yueh-Chin Cheng ◽  
Chin-Feng Chang ◽  
...  

2015 ◽  
Vol 16 (9) ◽  
pp. 3961-3968 ◽  
Author(s):  
Peechanika Chopjitt ◽  
Chamsai Pientong ◽  
Sureewan Bumrungthai ◽  
Bunkerd Kongyingyoes ◽  
Tipaya Ekalaksananan

2013 ◽  
Vol 18 (6) ◽  
pp. 1109-1115
Author(s):  
Seung Bum Choi ◽  
Young Soon Kang ◽  
Sun Kwon Bang ◽  
In Seok Bang

2010 ◽  
Vol 19 (5) ◽  
pp. 617-630 ◽  
Author(s):  
D. C. Jaworski ◽  
Z. Zou ◽  
C. J. Bowen ◽  
N. B. Wasala ◽  
R. Madden ◽  
...  

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