scholarly journals Peripheral blood T lymphocytes are downregulated by the PD-1/PD-L1 axis in advanced gastric cancer

2019 ◽  
Vol 15 (3) ◽  
pp. 774-783 ◽  
Author(s):  
Witold Zgodzinski ◽  
Ewelina Grywalska ◽  
Krzysztof Zinkiewicz ◽  
Agata Surdacka ◽  
Marek Majewski ◽  
...  
2009 ◽  
Vol 27 (4) ◽  
pp. 1060-1065 ◽  
Author(s):  
Mehmet Aliustaoglu ◽  
Ahmet Bilici ◽  
Bala Basak Oven Ustaalioglu ◽  
Volkan Konya ◽  
Murat Gucun ◽  
...  

2022 ◽  
Vol 2022 ◽  
pp. 1-9
Author(s):  
Pengjie Yu ◽  
Shengmao Zhu ◽  
Yushuang Luo ◽  
Ganggang Li ◽  
Yongqiang Pu ◽  
...  

Objective. To explore the application value of circulating tumor cells (CTCs) and circulating free DNA (cfDNA) from peripheral blood in the prognosis of advanced gastric cancer (AGC). Here, we measured CTCs and cfDNA quantity for predicting the outcome of patients. Patients and Methods. Forty-five patients with advanced gastric cancer who underwent neoadjuvant chemotherapy and surgical treatment were enrolled in this study. All patients received neoadjuvant chemotherapy with paclitaxel + S-1 + oxaliplatin (PSOX) regimen, and CTCs and cfDNA of the peripheral blood were detected before and after neoadjuvant therapy. Relationships between the number/type of CTC or cfDNA and the efficacy of neoadjuvant chemotherapy were analyzed. Results. Among 45 patients, 43 (95.6%) were positive, and the positive rate of mesenchymal CTC was increased with the increase in the T stage. The proportion of mesenchymal CTC was positively correlated with the N stage ( P < 0.05 ), and the larger N stage will have the higher proportion of mesenchymal CTC. Patients with a small number of mesenchymal CTC before neoadjuvant chemotherapy were more likely to achieve partial response (PR) with neoadjuvant therapy. Patients with positive CA-199 were more likely to achieve PR with neoadjuvant therapy ( P < 0.05 ). Patients in the PR group were more likely to have decreased/unchanged cfDNA concentration after neoadjuvant therapy ( P = 0.119 ). After neoadjuvant therapy (before surgery), the cfDNA concentration was higher and the efficacy of neoadjuvant therapy (SD or PD) was lower ( P = 0.045 ). Conclusions. Peripheral blood CTC, especially interstitial CTC and cfDNA, has a certain value in predicting the efficacy and prognosis of neoadjuvant chemotherapy in advanced gastric cancer.


Tumor Biology ◽  
2017 ◽  
Vol 39 (5) ◽  
pp. 101042831769757 ◽  
Author(s):  
Qi He ◽  
Guoli Li ◽  
Xiang Ji ◽  
Long Ma ◽  
Xulin Wang ◽  
...  

We aimed to investigate the prognostic value of the immune cells population in peripheral blood from patients with advanced gastric cancer treated with neoadjuvant chemotherapy. A total of 105 patients with advanced gastric cancer were evaluated in this study. Blood samples were collected before and 1 week after the last dose of chemotherapy. The percentage of CD3+, CD3+CD4+, CD3+CD8+, and CD4+CD25+Foxp3+ T cells was assessed using flow cytometry analysis. The relationship between T cell subsets and clinical outcome was evaluated. The percentage of CD3+CD8+ lymphocytes was significantly increased after chemotherapy and CD4+CD25+Foxp3+ regulatory T cells (Tregs) decreased ( p = 0.003 and p < 0.001, respectively). The percentage of CD3+CD8+ lymphocytes and Tregs was strongly associated with response to chemotherapy ( p = 0.017 and p < 0.030, respectively). Patients with high CD3+CD8+ T cells and low CD4+CD25+Foxp3+ Tregs had significantly increased overall survival ( p = 0.012 and p = 0.048, respectively). Neither CD3+ nor CD3+CD4+ T cells showed significant changes after chemotherapy or correlations with the clinical outcome. The positive correlation between a high CD3+CD8+ T cells or low CD4+CD25+Foxp3+ Tregs and clinical outcome indicates its key role in the prognosis of gastric cancer patients and may serve as a biomarker to identify patients likely to benefit from neoadjuvant chemotherapy.


Author(s):  
Kentaro Chochi ◽  
Takashi Ichikura ◽  
Takashi Majima ◽  
Toshinobu Kawabata ◽  
Atsushi Matsumoto ◽  
...  

2021 ◽  
Vol 37 (7) ◽  
Author(s):  
Wen-wen Li ◽  
Jin Jiao ◽  
Zhi-yu Wang ◽  
Ya-ning Wei ◽  
Yuan-fang Zhang

Objectives: To evaluate the clinical efficacy of immunotherapy combined with chemotherapy in patients with advanced gastric cancer and its effect on nutritional status and changes of peripheral blood T lymphocyte subsets. Methods: Sixty patients with locally advanced gastric cancer who were admitted by Affiliated Hospital of Hebei University from March 2020 to February 2021 were enrolled and randomly divided into two groups, with 30 cases in each group. The control group was treated with FOLFOX4 chemotherapy, while the experimental group was additively treated with cindilizumab on the basis of control group. The incidence of adverse reactions, clinical efficacy, improvement of nutritional and physical status, and changes in the levels of T lymphocyte subgroups in the two groups were compared and analyzed. Results: The total effective rate was 70% in the experimental group, which was better than 43.3% of the control group (p=0.04). The improvement rate of performance status (ECOG) score and nutritional indicators in the experimental group was significantly better than that in the control group (p<0.05). Moreover, the indicators of CD3+, CD4+, CD4+/CD8+ in the experimental group were significantly higher than those in the control group after treatment, with statistically significant differences (CD3+, p=0.01; CD4 +, p=0.02; CD4+/CD8+, p=0.01). Conclusion: Immunotherapy combined with chemotherapy has a significant effect on locally advanced gastric cancer patients, with significant improvement in physical strength and nutritional status, significant improvement in T lymphocyte function, and no obvious adverse reactions. It is worth promoting in clinical application. doi: https://doi.org/10.12669/pjms.37.7.4347 How to cite this:Li W, Jiao J, Wang Z, Wei Y, Zhang Y. Clinical efficacy of immunotherapy combined with chemotherapy in patients with advanced gastric cancer, its effect on nutritional status and Changes of peripheral blood T lymphocyte subsets. Pak J Med Sci. 2021;37(7):---------. doi: https://doi.org/10.12669/pjms.37.7.4347 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


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