17Nov 2021
Clinical and genomic features of SPOP‐mutant prostate cancer

Clinical and genomic features of SPOP‐mutant prostate cancer

Inactivating missense mutations in the SPOP gene, encoding speckle‐type poxvirus and zinc‐finger protein, are one of the most common genetic alterations in prostate cancer. We retrospectively identified 72 consecutive prostate cancer patients with somatic SPOP mutations, through next‐generation sequencing analysis, who were treated at the Johns Hopkins Hospital. We evaluated clinical and genomic characteristics of this SPOP‐mutant subset. SPOP alterations were clustered in the MATH domain, with hotspot mutations involving the F133 and F102 residues. The most frequent concurrent genetic alterations were in APC (16/72 [22%]), PTEN (13/72 [18%]), and TP53 (11/72 [15%]). SPOP‐mutant cancers appeared to be mutually exclusive with tumors harboring the TMPRSS2‐ERG fusion, and were significantly enriched for Wnt pathway (APC, CTNNB1) mutations and de‐enriched for TP53/PTEN/RB1 alterations...

  • #urology

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