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01.12.2010

Increased CTLA-4 and FOXP3 Transcripts in Peripheral Blood Mononuclear Cells of Patients with Breast Cancer

verfasst von: Mansooreh Jaberipour, Mojtaba Habibagahi, Ahmad Hosseini, Saadat Rezai Habibabad, Abdolrasoul Talei, Abbas Ghaderi

Erschienen in: Pathology & Oncology Research | Ausgabe 4/2010

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Abstract

Generation of Regulatory T cells (Tregs) is known to play a major role in progression and modulation of the immune escape mechanisms in cancer. These cells express Forkhead/winged helix transcription factor (FOXP3) and also Cytotoxic T-lymphocyte antigen-4 (CTLA-4), as a negative regulatory molecule which, is a potential target for immunotherapy. We, therefore, evaluated FOXP3 and CTLA-4 transcripts in the peripheral blood mononuclear cells from 55 women with histologically-confirmed infiltrating ductal carcinoma of the breast. Blood samples from 40 healthy volunteer women without a history of malignancies or autoimmune disorders were also obtained as a control. The abundance of FOXP3 and CTLA-4 gene transcripts was determined by quantitative real-time PCR (qRT-PCR). Compared to healthy individuals, significantly higher amounts of these transcripts were found in the mononuclear cells from breast cancer patients. Also, a significant correlation was found between CTLA-4 and FOXP3 expressions in a group of patients. Among patients with early stage, nonmetastatic or low-grade disease, the relative expression of CTLA-4 was about 10-fold as much as in the control group. These patients also showed a significant increase, more than 10 fold, in mean relative FOXP3 expression. The results of this investigation point to functional activity of Treg cells in early stages of breast cancer, a finding which emphasizes the significance of Tregs as an imminent target for breast cancer immunotherapy.

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Titel: Increased CTLA-4 and FOXP3 Transcripts in Peripheral Blood Mononuclear Cells of Patients with Breast Cancer
verfasst von: Mansooreh Jaberipour
Mojtaba Habibagahi
Ahmad Hosseini
Saadat Rezai Habibabad
Abdolrasoul Talei
Abbas Ghaderi
Publikationsdatum: 01.12.2010
Verlag: Springer Netherlands
Erschienen in: Pathology & Oncology Research / Ausgabe 4/2010
Print ISSN: 1219-4956
Elektronische ISSN: 1532-2807
DOI: https://doi.org/10.1007/s12253-010-9256-8

Die Highlights vom Kongress des American College of Cardiology 2024

Springer Medizin

Increased CTLA-4 and FOXP3 Transcripts in Peripheral Blood Mononuclear Cells of Patients with Breast Cancer

Abstract

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Abstract

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