:: Volume 19, Issue 1 (1-2015) ::
IBJ 2015, 19(1): 35-44 Back to browse issues page
Comparative Analysis of CD4+ and CD8+ T Cells in Tumor Tissues, Lymph Nodes and the Peripheral Blood from Patients with Breast Cancer
Farhad Riazi Rad , Soheila Ajdary , Ramesh Omranipour , Mohammad Hossein Alimohammadian , Zahir Hassan
Abstract:  
Background: CD4+ and CD8+ T cells are the main types of lymphocytes in cell-mediated immunity and play a central role in the induction of efficient immune responses against tumors. The frequencies of T cell subtypes in the peripheral blood and tumor tissues, and draining lymph nodes (dLN) can be considered as useful markers for evaluation of the immune system in cancers. Methods: In this study, the frequencies of CD4+ and CD8+ T cells in blood, tumor tissues, and dLN samples of breast cancer patients were compared with each other and with similar tissues from normal individuals. Immunophenotyping was carried out by flow cytometry and the expression levels of CXCL10, granzyme B, and mammaglobin were evaluated by real-time PCR. Results: In the peripheral blood, there were no differences in the T cell subsets between the patients and the normal individuals. The frequency of CD8+ T cells was significantly higher in tumor tissue than normal breast tissues while granzyme B expression was similar. Based on mammaglobin expression levels, dLN have been classified into micro- and macro-metastatic dLN. We found significantly lower frequency of CD4+ in macro-metastatic dLN than micro-metastatic dLN. CD8+ frequency was similar in both dLN however, granzyme B expression was higher in micro-metastatic ones. There was not any significant difference in CXCL10 expression between the two types of dLN. Conclusions: Based on our results, although the tumor does not affect the systemic immunity, tumoral cells affect the local immune system in the tumoral tissues and the metastatic dLN.
Keywords: Breast neoplasms, CD4+ T lymphocyte, CD8+ T lymphocytes, Granzymes, CXCL10
Full-Text [PDF 407 kb]      
Type of Study: Full Length | Subject: Related Fields
Send email to the article author

Add your comments about this article
Your username or Email:

CAPTCHA code



XML     Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Riazi Rad F, Ajdary S, Omranipour R, Alimohammadian M H, Hassan Z. Comparative Analysis of CD4+ and CD8+ T Cells in Tumor Tissues, Lymph Nodes and the Peripheral Blood from Patients with Breast Cancer. IBJ. 2015; 19 (1) :35-44
URL: http://ibj.pasteur.ac.ir/article-1-1246-en.html


Volume 19, Issue 1 (1-2015) Back to browse issues page
Persian site map - English site map - Created in 0.2 seconds with 37 queries by YEKTAWEB 3749