Publications by authors named "R Toivanen"

Objectives: To perform a systematic review and meta-analysis of the literature to understand the variation in the reporting of neuroendocrine staining and determine the influence of reporting neuroendocrine staining at diagnosis on patient outcomes.

Methods: Medical databases were searched to identify studies in which adenocarcinoma specimens were stained with any of the following four neuroendocrine markers: chromogranin A (CgA), neuron-specific enolase (NSE), synaptophysin and CD56. The prevalence of neuroendocrine staining and correlation of the prevalence of neuroendocrine staining to patient outcomes were analysed using a random-effects model.

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The heterogeneity of prostate cancer is evident at clinical, morphological and molecular levels. To aid clinical decision making, a three-tiered system for risk stratification is used to designate low-, intermediate-, and high-risk of disease progression. Intermediate-risk prostate cancers are the most frequently diagnosed, and even with common diagnostic features, can exhibit vastly different clinical progression.

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Preclinical testing is a crucial step in evaluating cancer therapeutics. We aimed to establish a significant resource of patient-derived xenografts (PDXs) of prostate cancer for rapid and systematic evaluation of candidate therapies. The PDX collection comprises 59 tumors collected from 30 patients between 2012-2020, coinciding with availability of abiraterone and enzalutamide.

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PTEN loss stimulates prostate tumor progression by sustaining AKT activation. Nowak et al. (2019.

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Article Synopsis
  • Castration-resistant prostate cancer (CRPC) is difficult to treat due to its diverse tumor characteristics, making it essential to develop models that reflect this complexity for better therapy identification.
  • Researchers created four new patient-derived xenografts (PDXs) from two patients to explore effective drug treatments, focusing on various therapeutic strategies.
  • The study tested multiple drugs on these PDXs and found that, despite the tumors' heterogeneity, all models responded well to a specific combination of ribosome-targeting agents, CX-5461 and CX-6258.
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