Cancer/testis antigens and urological malignancies.

Nat Rev Urol

James Buchanan Brady Urological Institute, 600 North Wolfe Street, The Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA.

Published: June 2012

Cancer/testis antigens (CTAs) are a group of tumour-associated antigens (TAAs) that display normal expression in the adult testis--an immune-privileged organ--but aberrant expression in several types of cancers, particularly in advanced cancers with stem cell-like characteristics. There has been an explosion in CTA-based research since CTAs were first identified in 1991 and MAGE-1 was shown to elicit an autologous cytotoxic T-lymphocyte (CTL) response in a patient with melanoma. The resulting data have not only highlighted a role for CTAs in tumorigenesis, but have also underscored the translational potential of these antigens for detecting and treating many types of cancers. Studies that have investigated the use of CTAs for the clinical management of urological malignancies indicate that these TAAs have potential roles as novel biomarkers, with increased specificity and sensitivity compared to those currently used in the clinic, and therapeutic targets for cancer immunotherapy. Increasing evidence supports the utilization of these promising tools for urological indications.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3477645PMC
http://dx.doi.org/10.1038/nrurol.2012.117DOI Listing

Publication Analysis

Top Keywords

cancer/testis antigens
8
urological malignancies
8
types cancers
8
antigens urological
4
malignancies cancer/testis
4
ctas
4
antigens ctas
4
ctas group
4
group tumour-associated
4
tumour-associated antigens
4

Similar Publications

Evaluation of MAGE-A4 expression in breast cancer and its impact on prognosis.

Cancer Sci

December 2024

Department of Personalized Cancer Immunotherapy/Center for Comprehensive Cancer Immunotherapy, Mie University Graduate School of Medicine, Tsu, Japan.

Melanoma-associated antigen (MAGE)-A4, a cancer testis antigen, presents a promising target for chimeric antigen receptor T cell therapy in refractory solid tumors, including breast cancer (BC). However, the lack of highly specific Abs against MAGE-A4 is a major challenge for the development of MAGE-A4-targeted immunotherapies. This study aimed to validate the specificity of a novel MAGE-A4 Ab (E701U) and examine MAGE-A4 expression in clinical BC samples.

View Article and Find Full Text PDF

The development of T cell receptor-engineered T cells (TCR-T) targeting intracellular antigens is a promising strategy for treating solid tumors; however, the mechanisms underlying their effectiveness remain poorly understood. In this study, we employed advanced techniques to investigate the functional state of T cells engineered with retroviral vectors to express a TCR specific for the NY-ESO-1 157-165 peptide in the HLA-A*02:01 context. Flow cytometry revealed a predominance of naïve T cells.

View Article and Find Full Text PDF

Background: PRAME (eferentially expressed ntigen in lanoma) is a cancer-testis antigen expressed in several tumor indications, representing an attractive anticancer target. However, its intracellular location limits targeting by traditional methods. PRAME peptides are presented on the surface of tumor cells by human leukocyte antigen (HLA) molecules, indicating that a T cell receptor (TCR)-based strategy that redirects T cells to kill PRAME tumors could be a novel immunotherapeutic option.

View Article and Find Full Text PDF

The Influence of Melanoma Extracellular Vesicles on Benign Melanocytes: A Role for PRAME in Modulation of the Tumor Microenvironment.

J Invest Dermatol

November 2024

Department of Pathology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA; Department of Dermatology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA; Cancer Biology Research Program, Stephenson Cancer Center, Oklahoma City, Oklahoma, USA. Electronic address:

Melanoma is an aggressive skin cancer with a high tendency for metastasis and resistance to conventional therapies. This study explores the role of preferentially expressed antigen in melanoma (PRAME), a cancer-testis antigen, in melanoma progression, focusing on its function in melanoma-derived extracellular vesicles (EVs) and its impact on benign melanocytes. We show that PRAME is highly expressed in melanoma cell lines, tissues, and patient plasma and is present in EVs.

View Article and Find Full Text PDF

5-Aza-2'-deoxycytidin (Decitabine) increases cancer-testis antigen expression in head and neck squamous cell carcinoma and modifies immune checkpoint expression, especially in CD39-positive CD8 and CD4 T cells.

Neoplasia

January 2025

Head and Neck Cancer Center of the Comprehensive Cancer Center, Department of Otorhinolaryngology and Head & Neck Surgery, Ulm University Medical Center, Germany; Ulm University Medical Faculty, Core Facility Immune Monitoring, Ulm, Germany. Electronic address:

Failure of immunotherapy in head and neck squamous cell carcinoma (HNSCC) patients represents an unmet need to augment leverage of adaptive immunity. Immunogenic cancer-testis antigen (CTA) expression as well as lymphocyte differentiation and function are regulated by DNA methylation. Therefore, epigenetic therapy via inhibition of DNA-Methyltransferases by 5-Aza-2'-deoxycytidine (DAC) serves a promising adjuvant in immunotherapy.

View Article and Find Full Text PDF

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!