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Cell-free DNA and proteins are secreted into the bloodstream by multiple types of cancer. In a recently published prospective study involving 10,006 women, such markers were used in a cancer screening approach that incorporated PET–CT as a confirmatory test. Herein, we discuss the implications of these results.
Therapies are being developed to treat cancers on the basis of specific molecular alterations and markers of immune phenotypes that transcend specific tumour histologies. The authors summarize the development and testing of approved histology-agnostic therapeutic agents, present data on other agents under development and discuss the challenges intrinsic to histology-agnostic drug development in oncology, including biological, regulatory, design and statistical considerations.
Signalling induced by extracellular adenosine (eADO) can suppress antitumour immunity through multiple mechanisms. Herein, the authors review the pathophysiological functions of eADO in cancer and the related prognostic implications. They discuss the associated opportunities for eADO pathway-targeted immunotherapy, highlighting potential limitations and the scope for combination and biomarker-based strategies. The data emerging from oncology clinical trials of the diverse range of therapies that have been developed to target the eADO signalling pathway are also described.
Therapies targeting MET-overexpressing cancers have limited efficacy. However, owing to advances in detection methods, therapies targeting MET-dependent tumours harbouring MET amplifications, activating mutations or fusions are emerging. In this review, the authors describe emerging data on this new class of targeted therapies.
Monitoring both cancer incidence and death rates is important for guiding health policy and the direction of future research. In this Perspective, the authors describe changes in cancer incidence and death rates in the USA, highlighting the effects of specific policies and research developments, and providing insight into unmet needs that should be addressed by future health policies.
Lung cancer screening is currently based only on low-dose CT scans; however, novel, more accessible methods that might improve uptake and adherence are eagerly awaited. New liquid biopsy approaches promise to revolutionize cancer screening. Herein, we discuss the opportunities and challenges associated with two such novel assays.
Mature results of the PROfound study demonstrate that the poly(ADP-ribose) polymerase (PARP) inhibitor olaparib prolongs progression-free survival compared with second-generation hormonal therapies in men with metastatic castration-resistant prostate cancer harbouring BRCA1, BRCA2 or ATM mutations. However, a closer look at the efficacy of olaparib on a gene-by-gene basis suggests that its activity is most pronounced in BRCA2-mutant prostate cancers and might not be equally active in all homologous recombination repair-deficient cancers.
Early published data on COVID-19 in patients with cancer are being referenced in clinical guidelines, despite methodological flaws that limit the quality of much of this evidence. In the next phase of research in this area, we argue that the quality of observational evidence should be prioritized over speed of publication.
Bacteria within tumours affect progression and response to therapy; in addition, bacterial DNA can be detected in cell-free plasma. Herein, we discuss evidence showing that intratumoural bacteria are characteristic for each tumour type, and that detection of cell-free bacterial DNA in blood could provide an accurate and non-invasive test for cancer diagnosis.
