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Target intelligence / Profile preview
Synovial sarcoma X breakpoint protein 5 (SSX5)
- Target
- SSX5
- Molecular classification
- Transcription factor, Cancer/testis antigen
01
Overview
Synovial sarcoma X breakpoint protein 5 (SSX5) is a member of the SSX gene family, which encodes highly homologous proteins that may function as transcriptional repressors and modulators of transcription. SSX5 can elicit humoral and cellular immune responses in cancer patients and is considered a cancer/testis antigen, primarily expressed in a variety of tumor tissues but not in most normal adult tissues except for testis. Unlike some related SSX genes (e.g., SSX1, SSX2), SSX5 is not implicated in the characteristic t(X;18) chromosomal translocation found in synovial sarcoma. Its restricted expression to tumor tissues, including hepatocellular carcinoma, makes it a potential target for cancer vaccine-based immunotherapy and as a diagnostic marker for cancer detection. Two transcript variants encoding distinct isoforms have been identified for this gene.
- Other names
- Protein SSX5SSX family member 5synovial sarcoma, X breakpoint 5SSX5_HUMAN
02
Mechanism of action
Cancer immunotherapy target due to cancer/testis antigen properties
03
Biological functions
Transcriptional repressionTranscriptional modulationCellular immune response inductionHumoral immune response induction
04
Disease associations
CancerSarcomaHepatocellular carcinoma
05
Safety considerations
No specific safety concerns or therapeutic challenges reportedgeneral considerations apply regarding antigen specificity and off-tumor effects in immunotherapy
06
Biomarkers
Cancer/testis antigenpotential diagnostic marker for circulating tumor cells in hepatocellular carcinoma
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