Background/aim: Lung cancer is rarely cured by current therapeutic approaches. Although numerous studies have implicated FOXP3 positive regulatory T-cells in cancer pathogenesis, the role of FOXP3 in lung cancer pathogenesis remains unkown.
Materials And Methods: Using immunohistochemistry FOXP3 expression was determined in 44 NSCLC tissue specimens, 20 samples from adjacent non neoplastic lung parenchyma and 5 normal lung tissue specimens.
Results: FOXP3 immunostaining was always nuclear in both tumor and non-neoplastic adjacent tissues. FOXP3 was also detected at lower levels in normal bronchial epithelium. Moreover, FOXP3 expression in cancer cells correlated with lymphocytic FOXP3-immunopositivity and the presence of lymph node metastasis. FOXP3 lymphocytic expression was also negatively associated with the age of the patients.
Conclusion: FOXP3 is overexpressed in NSCLC cells and tumor-infiltrating lymphocytes. This study provides evidence that lymphocytic FOXP3 expression may be age related and that tumor FOXP3 expression is correlated with lymph node metastasis.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
TSLP acts on regulatory T cells to maintain their identity and limit allergic inflammation.
Sci Immunol
January 2025
Laboratory of Molecular Immunology and Immunology Center, National Heart, Lung, and Blood Institute, National Institutes of Health (NIH), Bethesda, MD 20892, USA.
Thymic stromal lymphopoietin (TSLP) is a type I cytokine that promotes allergic responses and mediates type 2 immunity. A balance between effector T cells (T), which drive the immune response, and regulatory T cells (T), which suppress the response, is required for proper immune homeostasis. Here, we report that TSLP differentially acts on T versus T to balance type 2 immunity.
View Article and Find Full Text PDFMetabolic Fitness of NAC1-Deficient Regulatory T Cells in the Tumor Microenvironment Fuels Tumor Growth.
JCI Insight
January 2025
Department of Microbial Pathogenesis and Immunology, Texas A&M University Health Science Center, Bryan, United States of America.
The nucleus accumbens-associated protein-1 (NAC1) has recently emerged as a pivotal factor in oncogenesis by promoting glycolysis. Deletion of NAC1 in regulatory T cells (Tregs) has been shown to enhance FoxP3 stability, a suppressor of glycolysis. This study delves into the intriguing dual role of NAC1, uncovering that Tregs-specific deletion of NAC1 fosters metabolic fitness in Tregs, thereby promoting tumorigenesis.
View Article and Find Full Text PDFPD1-Targeted Transgene Delivery to Treg Cells.
Viruses
December 2024
Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia.
Achieving the precise targeting of lentiviral vectors (LVs) to specific cell populations is crucial for effective gene therapy, particularly in cancer treatment where the modulation of the tumor microenvironment can enhance anti-tumor immunity. Programmed cell death protein 1 (PD-1) is overexpressed on activated tumor-infiltrating T lymphocytes, including regulatory T cells that suppress immune responses via FOXP3 expression. We developed PD1-targeted LVs by incorporating the anti-PD1 nanobody nb102c3 into receptor-blinded measles virus H and VSV-G glycoproteins.
View Article and Find Full Text PDFModulation of FOXP3 Gene Expression in OVCAR3 Cells Following Rosmarinic Acid and Doxorubicin Exposure.
Pharmaceuticals (Basel)
November 2024
Department of Anatomy, Faculty of Medicine, Dicle University, Diyarbakir 21200, Turkey.
Ovarian cancer has the highest mortality rate in the world. Treatment methods are listed as surgery, chemotherapy, and radiotherapy, depending on the stage of cancer, but developing resistance to chemotherapy increases the need for alternative agents that act on the same pathways. The effects of rosmarinic acid (RA) and doxorubicin (DX) on the activation of FOXP3, an important tumor suppressor gene, in OVCAR3 cells were examined.
View Article and Find Full Text PDFMicroenvironmental Traits of Classical Hodgkin's Lymphoma in Adolescents and Their Prognostic Impact.
Cancers (Basel)
December 2024
Haematopathology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy.
Background: Classical Hodgkin's lymphoma (cHL) in adolescents between 15 and 18 years old shows a higher disease-related mortality, and the overall prognosis is worse than in both children and adults.
Objectives: We investigated the immune checkpoint inhibitors (ICPIs) therapeutic targets and specific T-regulatory and cytotoxic T-cell subsets in the subgroup of adolescent cHL patients, and we challenged their prognostic power.
Methods: We retrieved formalin-fixed paraffin-embedded (FFPE) tissue of adolescent patients diagnosed with cHL and tested by immunohistochemistry the immune checkpoint molecules CTLA-4, LAG-3, PD-1, and PDL1 as well as the biological markers FOXP3 and CD8.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!