Dataset Information

Early Increase in Circulating PD-1⁺CD8⁺ T Cells Predicts Favorable Survival in Patients with Advanced Gastric Cancer Receiving Chemotherapy.

ABSTRACT: The clinical significance of PD-1 expression in circulating CD8⁺ T cells in patients with gastric cancer (GC) receiving chemotherapy remains unelucidated. Therefore, we aimed to examine its prognostic significance in blood samples of 68 patients with advanced GC who received platinum-based chemotherapy. The correlation between peripheral blood mononuclear cells, measured using fluorescence-activated cell sorting, was evaluated. Patients were divided into two groups according to the changes in PD-1⁺CD8⁺ T-cell frequencies between day 0 and 7. They were categorized as increased or decreased PD-1⁺CD8⁺ T-cell groups. The increased PD-1⁺CD8⁺ T-cell group showed longer progression-free survival (PFS) and overall survival (OS) than the decreased PD-1⁺CD8⁺ T-cell group (PFS: 8.7 months vs. 6.1 months, p = 0.007; OS: 20.7 months vs. 10.8 months, p = 0.003). The mean duration of response was significantly different between the groups (5.7 months vs. 2.5 months, p = 0.041). Multivariate analysis revealed that an increase in PD-1⁺CD8⁺ T-cell frequency was an independent prognostic factor. We concluded that the early increase in PD-1⁺CD8⁺ T-cell frequency is a potential predictor of favorable prognoses and durable responses in patients with advanced GC receiving chemotherapy.

SUBMITTER: Shin K

PROVIDER: S-EPMC10417033 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature

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Publications

Early Increase in Circulating PD-1+CD8+ T Cells Predicts Favorable Survival in Patients with Advanced Gastric Cancer Receiving Chemotherapy.

Shin Kabsoo K Kim Joori J Park Se Jun SJ Kim Hyunho H Lee Myung Ah MA Kim Okran O Park Juyeon J Kang Nahyeon N Kim In-Ho IH

Cancers 20230803 15

The clinical significance of PD-1 expression in circulating CD8+ T cells in patients with gastric cancer (GC) receiving chemotherapy remains unelucidated. Therefore, we aimed to examine its prognostic significance in blood samples of 68 patients with advanced GC who received platinum-based chemotherapy. The correlation between peripheral blood mononuclear cells, measured using fluorescence-activated cell sorting, was evaluated. Patients were divided into two groups according to the ch ...[more]

PMID: 37568771

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Project description:Integrin β4 (ITGB4) is a member of the integrin family, which plays a crucial role in mediating cell adhesion to the extracellular matrix. Recent studies have demonstrated that ITGB4 is involved in tumorigenesis and metastasis during the development of cancer. However, the role of ITGB4 in oral squamous cell carcinoma (OSCC) remains unclear. A Multiplex immunohistochemistry (OPAL™, mIHC) assay was employed to stain ITGB4, ALDH1, PD-L1, cytokeratin (CK), CD8 and PD-1 in a human OSCC tissue microarray, containing 26 normal oral epithelium samples, 21 oral epithelium dysplasia samples and 76 OSCC samples. The expression pattern and clinicopathological characteristics of ITGB4 were analyzed and compared with those of PD-1, PD-L1, ALDH1 and CD8. The correlation between subgroups of tumor cells, including ITGB4+PD-L1+ and ITGB4+ALDH1+, and subgroups of T cells, including CD8+ and CD8+PD-1+, was evaluated using two-tailed Pearson's statistics. A Kaplan-Meier curve was built, and a log-rank test was performed to analyze the survival rate of different subgroups. The mIHC staining results show that ITGB4 was mostly expressed in the tumor cells, with a significant increase in the OSCC specimens compared with normal oral epithelium and oral epithelium dysplasia. The paired analysis, conducted between the OSCC tumor tissue and normal paracancer mucosa, confirmed the results. The study further revealed that ITGB4+PD-L1+ cancer cells, but not ITGB4+ALDH1+ cancer cells, were significantly associated with the infiltration of CD8+ T cells (positivity p = 0.005, positive number p = 0.03). Additionally, ITGB4+PD-L1+ tumor cells were positively correlated with CD8+PD-1+ T cells (positivity p = 0.02, positive number p = 0.03). Most intriguingly, the subgroup of ITGB4/PD-L1high with CD8/PD-1high displayed the best prognosis compared with the other considered subgroups. The results show that the expression of ITGB4 was increased in OSCC compared with normal oral mucosa. Furthermore, a specific subgroup with high levels of expression of ITGB4/PD-L1 and CD8/PD-1 was found to have a relatively better prognosis compared with the other subgroups. Ultimately, this study sheds light on the potential role of ITGB4 in OSCC and provides a basis for further investigation.

Dataset Information

Early Increase in Circulating PD-1⁺CD8⁺ T Cells Predicts Favorable Survival in Patients with Advanced Gastric Cancer Receiving Chemotherapy.

Publications

Early Increase in Circulating PD-1<sup>+</sup>CD8<sup>+</sup> T Cells Predicts Favorable Survival in Patients with Advanced Gastric Cancer Receiving Chemotherapy.

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