| Autor: |
Cecília A. C. Lima, Luciana M. da Silva, Rogério L. dos Santos, Jerônimo P. A. Silva, Nora M. Forones, Mário R. Martins, Leuridan C. Torres |
| Rok vydání: |
2022 |
| Předmět: |
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| Zdroj: |
Journal of surgical oncologyREFERENCES. 126(1) |
| ISSN: |
1096-9098 |
| Popis: |
T cells are central in antitumor immunity in gastric cancer (GC). The inducible costimulatory molecule (ICOS) is a T cell receptor that primarily transmits positive signals for T cell activation and is associated with poor prognosis in GC. In contrast, the costimulatory molecule programmed death 1 (PD-1) is an inhibitory receptor related to tumor immune escape. This study aimed to analyze soluble sites and sPD-1 levels in GC.This study enrolled 83 GC patients and 20 healthy controls.The median survival time was 23.22 months in the GC patients. Low levels of sPD-1 and sICOS in GC patients compared to the control group (p = 0.003; p 0.0001, respectively). High sPD-1 levels in stage IV patients compared to I/II and III stages groups (p = 0.008 and p = 0.0004, respectively). GC patients with stages I and II had higher levels of sICOS compared to III and IV stages (p = 0.0005 and p = 0.02, respectively). There were no significant differences in sPD-1 and sICOS levels between Lauren subtypes.These results suggest a predominance of inhibitory costimulatory signals in advanced stages of GC, facilitating tumor immune escape, as the opposite occurs in early stages, resulting in an effective antitumor T-cell-mediated immune response. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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