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Gwynne S.,Singleton Hospital | Gwynne S.,Velindre Cancer Center | Spezi E.,Velindre Cancer Center | Sebag-Montefiore D.,University of Leeds | And 4 more authors.
British Journal of Radiology | Year: 2013

As the complexity of radiotherapy (RT) trials increases, issues surrounding target volume delineation will become more important. Some form of outlining assessment prior to trial entry is increasingly being mandated in UK RT trials. This document produced by the Outlining and Imaging Subgroup (OISG) of the National Cancer Research Institute will address methods to reduce interobserver variation in clinical trials and how to conduct an assessment of outlining through a pre-accrual benchmark case. We review currently available methods of describing the variation and identify areas where further work is needed. The OISG would encourage ongoing discussion with chief investigators in order to provide advice on individual aspects of benchmark case assessment for current and future trials. © 2013 The Authors. Source

Brunner T.B.,Gray Institute for Radiation Oncology and Biology | Kunz-Schughart L.A.,TU Dresden | Grosse-Gehling P.,TU Dresden | Baumann M.,TU Dresden
Seminars in Radiation Oncology | Year: 2012

Cancer stem cell research is one of the most thriving and competitive areas in oncology research because it has the potential to dramatically affect clinical outcomes. Led by progress in hematology, cancer stem cell research has now provided evidence to play an important role for solid cancers as well. Because radiotherapy is only second to surgery in terms of its curative potency, it is very important for radiation oncologists to learn whether progress in cancer stem cell biology can enable them to exploit this knowledge to help cure more patients suffering from cancer. The present article gives an overview about the challenges of the cancer stem cell concept and highlights some important phenomena that are under intense investigation, such as phenotypic plasticity of stemness and impact and dynamics of microenvironmental niches. We discuss the potential and limitations of current experimental and theragnostic tools and end up with an agenda for future research as outlook for translational possibilities in the clinic. © 2012 Elsevier Inc. Source

Kiltie A.E.,Gray Institute for Radiation Oncology and Biology
Current Opinion in Genetics and Development | Year: 2010

Bladder cancer is the 5th commonest cancer and two major risk factors are smoking and occupational chemical exposure. There is also evidence of a genetic component to its aetiology. Candidate gene studies have mostly focused on genes involved in adduct metabolism and DNA repair, including a recent consortium-based meta-analysis. Recently, two genome-wide association studies in bladder cancer have been published and a third is awaited with interest. These first two studies have identified three SNPs of genome-wide significance, two located within the 8q24 'gene desert'. These SNPs are positioned near or within loci of genes potentially implicated in cancer predisposition, namely MYC, TP63 and PSCA, although the functional significance of this is as yet unclear. © 2010 Elsevier Ltd. Source

McLaughlin P.,Cork University Hospital | McLaughlin P.,University College Cork | Jones B.,Gray Institute for Radiation Oncology and Biology | Jones B.,Oxford Martin Particle Therapy Cancer Research Institute | And 2 more authors.
British Journal of Radiology | Year: 2012

On 11 March 2011, the Richter scale 0.9-magnitude Tokohu earthquake and tsunami struck the northeast coast of Japan, resulting in widespread injury and loss of life. Compounding this tragic loss of life, a series of equipment and structural failures at the Fukushima Dai-ichi nuclear power plant (FDNP) resulted in the release of many volatile radioisotopes into the atmosphere. In this update, we detail currently available evidence about the nature of immediate radioactive exposure to FDNP workers and the general population. We contrast the nature of the radioactive exposure at FDNP with that which occurred at the Chernobyl power plant 25 years previously. Prediction of the exact health effects related to the FDNP release is difficult at present and this disaster provides the scientific communitywith a challenge to help those involved and to continue research that will improve our understanding of the potential complications of radionuclide fallout. © 2012 The British Institute of Radiology. Source

Franks K.N.,St Jamess Hospital | Kancherla K.,St Jamess Hospital | Sethugavalar B.,St Jamess Hospital | Whelan P.,St Jamess Hospital | And 3 more authors.
Journal of Urology | Year: 2011

Purpose: We studied the outcomes in patients with node positive penile cancer who received radiotherapy to inguinal and pelvic nodes. Although half of node positive cases are cured by lymphadenectomy, little data are available on the potential further benefits and toxicities of postoperative radiotherapy. Materials and Methods: We retrospectively audited the clinical notes and electronic records of 23 patients referred to a specialist center from 2002 to 2008 who received radiotherapy to the inguinal/pelvic nodes as adjuvant treatment after lymphadenectomy (14), or as high grade palliation for extensive/fixed nodes (8) or extensive local tumor (1). The primary outcome measure was overall survival. Secondary end points were locoregional recurrence-free survival and toxicity. Results: All 13 deaths were due to penile cancer. Patients with adjuvant therapy had better overall survival (66% vs 11%, p <0.001) and locoregional relapse-free survival (56% vs 22%, p = 0.03) than those with high grade palliation. Six of 14 adjuvant cases and 7 of 9 with high grade palliation relapsed locoregionally. Of patients with adjuvant therapy and extracapsular spread 1 of 6 with N1, 1 of 4 with N2 and 3 of 4 with N3 disease relapsed (p = 0.31). No life threatening toxicity was observed. It was difficult to determine the relative contributions of radiotherapy and surgery to leg/scrotal lymphedema. The study was limited by its small size, which reflects the rarity of this tumor. Conclusions: Adjuvant radiotherapy appears to have a role after inguinal lymphadenectomy, particularly in patients with extracapsular nodal spread, in whom historically survival rates have been poor. Our findings warrant further investigation in larger series of patients. © 2011 American Urological Association Education and Research, Inc. Source

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