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Target intelligence / Profile preview
SAM pointed domain-containing ETS transcription factor (SPDEF)
- Target
- SPDEF
- Molecular classification
- Transcription factor, ETS family, DNA-binding protein
01
Overview
SAM pointed domain-containing ETS transcription factor (SPDEF) is a protein encoded by the SPDEF gene and is a member of the ETS family of transcription factors. It is highly expressed in prostate epithelial cells, functions as an androgen-independent activator of the PSA promoter, and may be involved in regulating genes significant for prostate gland function and carcinogenesis. SPDEF is also associated with several tumor types, including prostate, breast, lung, and ovarian cancers, where its expression is often elevated. It is being studied both as a potential biomarker and as a possible, though currently undrugged, therapeutic target[2][4][8].
- Other names
- PDEFProstate-derived ETS factorProstate epithelium-specific ETS factor
02
Biological functions
Regulation of gene expressionAndrogen-independent activation of prostate-specific antigen (PSA) promoterActivation of SERPINB5 promoterPossible regulation of prostate gland function and prostate cancer development
03
Disease associations
Cancer (notably prostate cancer, breast, lung, and ovarian tumors)Allergic cutaneous vasculitisLung mucoepidermoid carcinoma
04
Safety considerations
Targeting transcription factors directly is difficult due to lack of enzymatic activity or ligand binding pocketsPotential off-target impacts on non-cancerous tissues where SPDEF is expressedContext-dependent roles in different cancers (oncogenic vs. tumor suppressor)
05
Biomarkers
Expression levels of SPDEFProstate-specific antigen (PSA, indirectly via its regulation)
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