126
|
van Herk M, McWilliam A, Sanderson B, Kennedy J, Kershaw L, West C, Choudhury A. Toward a Data Mining Approach for Risk Stratification in Prostate Cancer. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
127
|
Premawardhana A, Davies R, Choudhury A. RENAL PROTECTION IN CORONARY INTERVENTION USING THE RENAL GUARD SYSTEM PROTOCOL: FINDINGS OF UK REGISTRY. Can J Cardiol 2016. [DOI: 10.1016/j.cjca.2016.07.282] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
|
128
|
Irlam-Jones JJ, Eustace A, Denley H, Choudhury A, Harris AL, Hoskin PJ, West CML. Expression of miR-210 in relation to other measures of hypoxia and prediction of benefit from hypoxia modification in patients with bladder cancer. Br J Cancer 2016; 115:571-8. [PMID: 27441495 PMCID: PMC4997544 DOI: 10.1038/bjc.2016.218] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 06/10/2016] [Accepted: 06/15/2016] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND The addition of hypoxia modifiers carbogen and nicotinamide (CON) to radiotherapy (RT) improved overall survival (OS) in bladder cancer patients in the BCON phase III clinical trial. We investigate whether expression of hsa-miR-210 in BCON patient samples reflects hypoxia and predicts benefit from hypoxia modification. METHODS In all, 183 T1-T4a bladder cancer samples were available for miR-210 analysis. A total of 86 received RT+CON and 97 received RT alone. TaqMan qPCR plates were used to assess miR-210 expression. Patients were classified as low ( RESULTS Patients with high miR-210 had a trend towards improved 5-year OS with RT+CON (53.2%) compared with RT alone (37.8%; hazard ratio (HR) 1.68, 95% CI 0.95-2.95, P=0.07). No benefit was seen with low miR-210 (HR 1.02, 95% CI 0.58-1.79, P=0.97). High miR-210 was significantly associated with high HIF-1α protein (P=0.001), CA9 protein (P=0.0004), Glut-1 protein (P=0.001), 26-gene hypoxia score (P=0.007), tumour necrosis (P=0.02) and concurrent pTis (P=0.03). CONCLUSIONS High miR-210 may reflect hypoxia in bladder cancer. However, its ability to predict benefit from hypoxia modification does not improve upon other hypoxia markers. Investigation as part of a miRNA hypoxia signature may reveal the full potential of miR-210.
Collapse
|
129
|
Mahil J, Hughes C, Patel K, Lyons J, Elliott PA, Choudhury A, Conroy R. Febrile Neutropenia Rates in Men Treated with Docetaxel Chemotherapy for Metastatic Hormone-sensitive Prostate Cancer. Clin Oncol (R Coll Radiol) 2016; 28:612. [PMID: 27342950 DOI: 10.1016/j.clon.2016.06.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Accepted: 06/08/2016] [Indexed: 10/21/2022]
|
130
|
McPartlin AJ, Li XA, Kershaw LE, Heide U, Kerkmeijer L, Lawton C, Mahmood U, Pos F, van As N, van Herk M, Vesprini D, van der Voort van Zyp J, Tree A, Choudhury A. MRI-guided prostate adaptive radiotherapy - A systematic review. Radiother Oncol 2016; 119:371-80. [PMID: 27162159 DOI: 10.1016/j.radonc.2016.04.014] [Citation(s) in RCA: 114] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Revised: 04/08/2016] [Accepted: 04/09/2016] [Indexed: 11/29/2022]
Abstract
Dose escalated radiotherapy improves outcomes for men with prostate cancer. A plateau for benefit from dose escalation using EBRT may not have been reached for some patients with higher risk disease. The use of increasingly conformal techniques, such as step and shoot IMRT or more recently VMAT, has allowed treatment intensification to be achieved whilst minimising associated increases in toxicity to surrounding normal structures. To support further safe dose escalation, the uncertainties in the treatment target position will need be minimised using optimal planning and image-guided radiotherapy (IGRT). In particular the increasing usage of profoundly hypo-fractionated stereotactic therapy is predicated on the ability to confidently direct treatment precisely to the intended target for the duration of each treatment. This article reviews published studies on the influences of varies types of motion on daily prostate position and how these may be mitigated to improve IGRT in future. In particular the role that MRI has played in the generation of data is discussed and the potential role of the MR-Linac in next-generation IGRT is discussed.
Collapse
|
131
|
Hague C, Fisher C, O'Hara C, Elliott P, Wylie J, Choudhury A, Tran A, Coyle C, Livsey J, Logue J. Early Real Life Experience of Radium 223 (Ra223) in Castrate Resistant Prostate Cancer (CRPC). Clin Oncol (R Coll Radiol) 2016. [DOI: 10.1016/j.clon.2015.12.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
132
|
Joseph N, Taylor C, Choudhury A, Elliott T, Logue J, Wylie J. Combined High Dose Rate (HDR) Brachytherapy with External Beam Radiotherapy (EBRT) Results in a High Rate of Biochemical Disease Free Survival (DFS) in Localised Intermediate and High Risk Prostate Cancer Patients. Clin Oncol (R Coll Radiol) 2016. [DOI: 10.1016/j.clon.2015.12.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
133
|
Joseph N, McWilliam A, Chang-Claude J, Davidson S, Johnson K, Rancati T, Talbot C, Webb A, West C, Choudhury A. PO-0754: Whole body Integral dose is associated with radiotherapy related fatigue in prostate cancer. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)32004-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
134
|
Sanderson B, McWilliam A, Faivre-Finn C, Choudhury A, Mee T. PO-0788: Predicted patient demand for MRI Linac. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)32038-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
135
|
Kleidona F, Salehi A, Dunne C, Choudhury A, Johns RH. P272 Managing suspected pulmonary embolism in an ambulatory setting: the Barking Havering and Redbridge University Hospitals experience. Thorax 2015. [DOI: 10.1136/thoraxjnl-2015-207770.408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
136
|
Joseph N, Dovedi SJ, Thompson C, Lyons J, Kennedy J, Elliott T, West CM, Choudhury A. Pre-treatment lymphocytopaenia is an adverse prognostic biomarker in muscle-invasive and advanced bladder cancer. Ann Oncol 2015; 27:294-9. [PMID: 26578732 DOI: 10.1093/annonc/mdv546] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Accepted: 10/28/2015] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Pre-treatment lymphocytopaenia may result from cytokines secreted by the tumour microenvironment in association with aggressive tumour biology. We sought to establish the prognostic significance of lymphocytopaenia in muscle-invasive and advanced bladder cancer. PATIENTS AND METHODS Seventy-four patients with muscle-invasive bladder cancer treated with radical chemoradiotherapy and 131 patients with advanced bladder cancer treated with palliative chemotherapy were included in the study. The absolute lymphocyte count on the first day of treatment was recorded. Invasive local or systemic recurrence in the muscle-invasive bladder cancer cohort and all-cause mortality in the advanced bladder cancer cohort were defined as survival end points. Receiver operating characteristic (ROC) curve analysis was utilized to determine the cut-off for defining lymphocytopaenia in the muscle-invasive bladder cancer cohort followed by multivariable analysis in a model evaluating the following variables: anaemia, neutrophilia, tumour stage, hydronephrosis and neoadjuvant chemotherapy. Subsequently, lymphocytopaenia was assessed in a multivariable model of the advanced bladder cancer cohort analysing the following prognostic variables: neutrophilia, anaemia, performance status and presence of bone or visceral metastases. A further analysis was carried out evaluating absolute lymphocyte count as a continuous variable. RESULTS An absolute lymphocyte count of 1.5 × 10(9)/l was determined as the cut-off on ROC curve analysis in the muscle-invasive bladder cancer cohort, and multivariate analysis revealed that only lymphocytopaenia was predictive for inferior outcome in this cohort. In the advanced bladder cancer cohort, lymphocytopaenia [hazard ratio (HR) 1.6, 95% confidence interval (CI) 1.1-2.4; P = 0.02] and performance status (HR 1.7, 95% CI 1.0-2.7; P = 0.047) were adverse prognostic factors in the binary variable multivariate model. Absolute lymphocyte count was the sole significant factor when analysed as a continuous variable (HR 0.66, 95% CI 0.5-0.87; P = 0.003). CONCLUSION Pre-treatment lymphocytopaenia is an independent adverse prognostic factor in both muscle-invasive and advanced bladder cancer. It may be a manifestation of cancer-induced immune suppression driving tumour progression.
Collapse
|
137
|
Ibe G, Sime A, Choudhury A. The management of acute urinary retention in a district general hospital (DGH) emergency department: How safe and effective is our current practice? Int J Surg 2015. [DOI: 10.1016/j.ijsu.2015.07.181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
138
|
Christodouleas J, Baumann B, Bosch W, Bahl A, Birtle A, Breau R, Challapalli A, Chang A, Choudhury A, Daneshmand S, Feldman A, Guzzo T, Hilman S, Jani A, Malkowicz B, Master V, Mitra A, Porten S, Efstathiou J, Eapen L. Development and Validation of Contouring Guidelines for Postcystectomy Adjuvant Radiation of Bladder Cancer. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.062] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
139
|
Forker LJ, Choudhury A, Kiltie AE. Biomarkers of Tumour Radiosensitivity and Predicting Benefit from Radiotherapy. Clin Oncol (R Coll Radiol) 2015; 27:561-9. [PMID: 26119726 DOI: 10.1016/j.clon.2015.06.002] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Accepted: 06/02/2015] [Indexed: 12/11/2022]
Abstract
Radiotherapy is an essential component of treatment for more than half of newly diagnosed cancer patients. The response to radiotherapy varies widely between individuals and although advances in technology have allowed the adaptation of radiotherapy fields to tumour anatomy, it is still not possible to tailor radiotherapy based on tumour biology. A biomarker of intrinsic radiosensitivity would be extremely valuable for individual dosing, aiding decision making between radical treatment options and avoiding toxicity of neoadjuvant or adjuvant radiotherapy in those unlikely to benefit. This systematic review summarises the current evidence for biomarkers under investigation as predictors of radiotherapy benefit. Only 10 biomarkers were identified as having been evaluated for their radiotherapy-specific predictive value in over 100 patients in a clinical setting, highlighting that despite a rich literature there were few high-quality studies for inclusion. The most extensively studied radiotherapy predictive biomarkers were the radiosensitivity index and MRE11; however, neither has been evaluated in a randomised controlled trial. Although these biomarkers show promise, there is not enough evidence to justify their use in routine practice. Further validation is needed before biomarkers can fulfil their potential and predict treatment outcomes for large numbers of patients.
Collapse
|
140
|
Walshaw R, Gahelnabi Z, Wylie J, Shenjere P, Choudhury A. Pathological Response to Preoperative Treatment as a Predictor of Cancer Outcome in the Treatment of Soft-tissue Sarcoma. Clin Oncol (R Coll Radiol) 2015; 27:544. [DOI: 10.1016/j.clon.2015.06.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Accepted: 06/03/2015] [Indexed: 10/23/2022]
|
141
|
Huddart RA, Jones R, Choudhury A. A New Dawn for Bladder Cancer? Recommendations from the National Institute for Health and Care Excellence (NICE) on Managing Bladder Cancer. Clin Oncol (R Coll Radiol) 2015; 27:380-1. [PMID: 25869257 DOI: 10.1016/j.clon.2015.03.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2015] [Accepted: 03/10/2015] [Indexed: 11/16/2022]
|
142
|
Bosques C, Lansing J, Ortiz D, Rutitzky L, Washburn N, Bhatnagar N, Kurtagic E, Choudhury A, Prod'homme T, Schultes B, Roy S, Kaundinya G, Manning A. AB0443 Selective Immunomodulators of FC-Gamma Receptors (SIFS) to Inhibit Autoantibody-Mediated Pathology. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.5069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
143
|
Ling L, Roy S, Meador J, Kehry M, Mekala D, Tyler S, Bulik D, Choudhury A, Markowitz L, Schultes B, Avery W, Parge V, Cochran E, King D, Kaundinya G, Manning A. THU0057 Targeting the Neonatal FC Receptor (FCRN) to Mediate Autoantibody Clearance in IgG-Driven Autoimmune Disease. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.5290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
144
|
Brand D, Thompson C, McWilliam A, Barton S, Taylor C, Logue J, Wylie J, Coyle C, Stratford J, Choudhury A. EP-1223: Endorectal balloons in prostate cancer radiotherapy: effects on seminal vesicle positioning. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)41215-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
145
|
Hamlett L, Wood D, Aitkenhead A, Hodgson C, Wylie J, Choudhury A, Logue J. PD-0178: Parameterised rectal dose and associations with latetoxicity in high-dose-rate prostate brachytherapy. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)40176-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
146
|
Stratford J, Aitkenhead A, Chauhan S, Thompson C, Taylor C, Choudhury A. EP-1670: Does the use of an endorectal balloon stabilise the rectum for patients receiving prostate radiotherapy? Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)41662-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
147
|
Thompson C, Sanderson B, Liptrot T, Wylie J, Choudhury A, Logue J. Tolerability of Concurrent Chemoradiotherapy with Gemcitabine (GemX), With and Without Prior Neoadjuvant Chemotherapy in Muscle Invasive Bladder Cancer: Physician- and Patient-reported Outcomes. Clin Oncol (R Coll Radiol) 2015. [DOI: 10.1016/j.clon.2014.11.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
148
|
Misra KK, Roy S, Choudhury A. Biology of Trypanosoma (Trypanozoon) evansi in experimental heterologous mammalian hosts. J Parasit Dis 2015; 40:1047-61. [PMID: 27605836 DOI: 10.1007/s12639-014-0633-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Accepted: 12/09/2014] [Indexed: 12/14/2022] Open
Abstract
Trypanosoma (Trypanozoon) evansi is a causative agent of the dreadful mammalian disease trypanosomiasis or 'Surra' and carried as a latent parasite in domestic cattle but occasionally proves fatal when transmitted to horses and camel. Sporadic outbreak of 'Surra' to different animals (beside their natural hosts) reminds that T. evansi may be zoonotic, as their close relative cause sleeping sickness to human being. This haemoflagellate is mechanically transmitted by horse fly and its effect on different host varies depending on certain factors including the effectiveness of transmission by mechanical vector, the suitability and susceptibility of the host as well as most importantly the ability of the disease establishment of parasite to adapt itself to the host's resistance, etc. The course of the disease caused by T. evansi is similar to that of human sleeping sickness caused by T. (T.) brucei gambiense. The target organs and symptoms show close similarity. T. evansi can successfully be transmitted among unnatural hosts i.e., other classes of vertebrates, like chicken. In transmission experiments, the unnatural hosts may sometimes induce profound changes in the biology of trypanosomes. Hence, in present study the observations are the biology of different morphological changes of T. evansi as well as its ability of disease formation within some heterologous mammal viz., albino rat, guineapig, bandicoot, mongoose, domestic cat and common monkey. Blood smears of infected albino rats, bandicoot, and mongoose revealed only monomorphic form. Interestingly, blood smears of infected cat and monkey, T. evansi shows slender trypomastigote form and short intermediate form whereas organ smears shows other two forms of haemoflagellate viz., sphaeromastigote and amastigote form. The haemoflagellate maintains a common reproductive cycle in all the experimental heterologous hosts whereas disease symptoms differ. T. evansi infected cat and monkey shows nervous symptoms. Infected monkey expresses some symptoms similar to that of human sleeping sickness disease. Thus the paper highlights zoonotic potentialities of T. evansi.
Collapse
|
149
|
Chauhan S, Clarke L, Stratford J, Bewley M, Choudhury A, Faivre-Finn C, Marchant T. 135: Intra-fractional tumour motion and an isotropic margin: lung stereotactic ablative body radiotherapy treatment – practice evaluation. Lung Cancer 2015. [DOI: 10.1016/s0169-5002(15)50129-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
150
|
Martineau A, James W, Hooper R, Barnes N, Jolliffe D, Bhowmik A, Rajakulasingam R, Choudhury A, Simcock D, Corrigan C, Hawrylowicz C, Griffiths C. S104 Double-blind Multi-centre Randomised Controlled Trial Of Vitamin D3 Supplementation In Copd (vidico). Thorax 2014. [DOI: 10.1136/thoraxjnl-2014-206260.110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|