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Study for Validation of Immunological Biomarkers in Patients With Metastatic Colorectal Cancer

ABSTRACT: The investigators recently identified promiscuous HLA-DR-derived epitopes from the human telomerase reverse transcriptase (TERT) called universal cancer peptides (UCP), to study tumor-specific CD4+ T cell responses. The investigators found high frequency of naturally occuring UCP-specific TH1 cells in long term survival of metastatic colorectal cancer (CRC) previously treated by 5 fluoro-uracil -oxaliplatin (Folfox) +/- bevacizumab regiment (Godet et al. OncoImmunology 2012 and unpublished data). Epitopes-CRC02 is a French prospective multicenter study which will evaluate the post chemotherapy and post surgery modulation of host tumor-specific CD4 TH1 cell responses in metastatic colorectal cancer patients and their correlation with progression-free survival.

DISEASE(S): Metastatic Colorectal Cancer,Colorectal Neoplasms

PROVIDER: 2218590 | ecrin-mdr-crc |

REPOSITORIES: ECRIN MDR

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Project description:Wodarz2007 - HIV/CD4 T-cell interaction A deterministic model illustrating how CD4 T-cells can influence HIV infection. This model is described in the article: Infection dynamics in HIV-specific CD4 T cells: does a CD4 T cell boost benefit the host or the virus? Wodarz D, Hamer DH. Math Biosci 2007 Sep; 209(1): 14-29 Abstract: Recent experimental data have shown that HIV-specific CD4 T cells provide a very important target for HIV replication. We use mathematical models to explore the effect of specific CD4 T cell infection on the dynamics of virus spread and immune responses. Infected CD4 T cells can provide antigen for their own stimulation. We show that such autocatalytic cell division can significantly enhance virus spread, and can also provide an additional reservoir for virus persistence during anti-viral drug therapy. In addition, the initial number of HIV-specific CD4 T cells is an important determinant of acute infection dynamics. A high initial number of HIV-specific CD4 T cells can lead to a sudden and fast drop of the population of HIV-specific CD4 T cells which results quickly in their extinction. On the other hand, a low initial number of HIV-specific CD4 T cells can lead to a prolonged persistence of HIV-specific CD4 T cell help at higher levels. The model suggests that boosting the population of HIV-specific CD4 T cells can increase the amount of virus-induced immune impairment, lead to less efficient anti-viral effector responses, and thus speed up disease progression, especially if effector responses such as CTL have not been sufficiently boosted at the same time. This model is hosted on BioModels Database and identified by: BIOMD0000000663. To cite BioModels Database, please use: Chelliah V et al. BioModels: ten-year anniversary. Nucl. Acids Res. 2015, 43(Database issue):D542-8. To the extent possible under law, all copyright and related or neighbouring rights to this encoded model have been dedicated to the public domain worldwide. Please refer to CC0 Public Domain Dedication for more information.

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Study for Validation of Immunological Biomarkers in Patients With Metastatic Colorectal Cancer

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