Of the 20 proteins that were associated with at least one prostate cancer outcome, we performed a targeted follow-up analysis for the two proteins with known high expression in the prostate tumour epithelium, MSMB and CREB3L4, using organ-wide spatial transcriptomic data on tissue obtained by radical prostatectomy from a patient with multifocal prostate cancer.35 The gene discussed is MSMB; the disease is prostate neoplasm.