Relationship between programmed death-ligand 1 and clinicopathological characteristics in non-small cell lung cancer patients / 中国医学科学杂志(英文版)
Chinese Medical Sciences Journal
; (4): 147-151, 2013.
Article
in En
| WPRIM
| ID: wpr-243199
Responsible library:
WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To evaluate the correlation between programmed death-ligand 1 (PD-L1) expression in primary lung cancer cells, tumor associated macrophages (TAM) and patients' clinicopathological characteristics.</p><p><b>METHODS</b>From 2008 to 2010, 208 non-small cell lung cancer patients who underwent surgery or CT-guided biopsy were recruited from Huadong Hospital, Fudan University. Immunohistochemistry staining was performed to evaluate the PD-L1 expression in both primary lung cancer cells and CD68 positive TAM. The relationship between PD-L1 expression and the clinical pathology was evaluated using χ(2) test. Spearman's rank correlations were used to determine the correlation between PD-L1 expression in tumor cells and macrophages.</p><p><b>RESULTS</b>Positive PD-L1 expression in primary cancer cells was found in 136 (65.3%) patients, which were negatively correlated with lymph node metastasis (P=0.009) and smoking history (P=0.036). Besides, TAM with PD-L1 expression (found in 116 patients) was positively associated with smoking history (P=0.034), well-differentiation (P=0.029) and negative lymph node metastasis (P=0.0096). A correlation between PD-L1 expression in primary tumor cells and non-small cell lung cancer associated macrophages was found (r=0.228, P=0.021).</p><p><b>CONCLUSION</b>PD-L1, secreted from TAM, might induce cancer cells apoptosis, and decrease lymph node metastasis.</p>
Full text:
1
Index:
WPRIM
Main subject:
Pathology
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Retrospective Studies
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Apoptosis
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Carcinoma, Non-Small-Cell Lung
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Bodily Secretions
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Cell Line, Tumor
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B7-H1 Antigen
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Lung Neoplasms
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Lymphatic Metastasis
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Macrophages
Type of study:
Observational_studies
Limits:
Adult
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Aged
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Aged80
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Female
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Humans
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Male
Language:
En
Journal:
Chinese Medical Sciences Journal
Year:
2013
Type:
Article