Open Access. Powered by Scholars. Published by Universities.®

Medicine and Health Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Oncology

Series

2016

Institution
Keyword
Publication

Articles 1 - 30 of 214

Full-Text Articles in Medicine and Health Sciences

Integrative Genomic And Transcriptomic Analysis For Pinpointing Recurrent Alterations Of Plant Homeodomain Genes And Their Clinical Significance In Breast Cancer, Huimei Yu, Yuanyuan Jiang, Lanxin Liu, Wenqi Shan, Xiaofang Chu, Zhe Yang, Zeng-Quan Yang Dec 2016

Integrative Genomic And Transcriptomic Analysis For Pinpointing Recurrent Alterations Of Plant Homeodomain Genes And Their Clinical Significance In Breast Cancer, Huimei Yu, Yuanyuan Jiang, Lanxin Liu, Wenqi Shan, Xiaofang Chu, Zhe Yang, Zeng-Quan Yang

Oncology Faculty Publications

A wide range of the epigenetic effectors that regulate chromatin modification, gene expression, genomic stability, and DNA repair contain structurally conserved domains called plant homeodomain (PHD) fingers. Alternations of several PHD finger-containing proteins (PHFs) due to genomic amplification, mutations, deletions, and translocations have been linked directly to various types of cancer. However, little is known about the genomic landscape and the clinical significance of PHFs in breast cancer. Hence, we performed a large-scale genomic and transcriptomic analysis of 98 PHF genes in breast cancer using TCGA and METABRIC datasets and correlated the recurrent alterations with clinicopathological features and survival of …


Marcks Phosphorylation Is Modulated By A Peptide Mimetic Of Marcks Effector Domain Leading To Increased Radiation Sensitivity In Lung Cancer Cell Lines, Timothy Rohrbach, Robert B. Jones, Patricia H. Hicks, Alice N. Weaver, Tiffany S. Cooper, Nicholas J. Eustace, Eddy S. Yang, John S. Jarboe, Joshua C. Anderson, Christopher D. Willey Dec 2016

Marcks Phosphorylation Is Modulated By A Peptide Mimetic Of Marcks Effector Domain Leading To Increased Radiation Sensitivity In Lung Cancer Cell Lines, Timothy Rohrbach, Robert B. Jones, Patricia H. Hicks, Alice N. Weaver, Tiffany S. Cooper, Nicholas J. Eustace, Eddy S. Yang, John S. Jarboe, Joshua C. Anderson, Christopher D. Willey

Richard Bland Faculty Works

Lung cancer is the leading cause of cancer-associated mortality in the United States. Kinase hyperactivation is a known mechanism of tumorigenesis. The phosphorylation status of the plasma membrane-associated protein myristoylated alanine rich C-kinase substrate (MARCKS) effector domain (ED) was previously established as being important in the sensitivity of lung cancer to radiation. Specifically, when MARCKS ED was in a non-phosphorylated state, lung cancer cells were more susceptible to ionizing radiation and experienced prolonged double-strand DNA breaks. Additional studies demonstrated that the phosphorylation status of MARCKS ED is important for gene expression and in vivo tumor growth. The present study used …


Vamorolone, A Dissociative Steroidal Compound, Reduces Pro-Inflammatory Cytokine Expression In Glioma Cells And Increases Activity And Survival In A Murine Model Of Cortical Tumor., Elizabeth Wells, Madhuri Kambhampati, Jesse M Damsker, Heather Gordish-Dressman, Sridevi Yadavilli, Oren J Becher, Jamila Gittens, Mojca Stampar, Roger J. Packer, Javad Nazarian Dec 2016

Vamorolone, A Dissociative Steroidal Compound, Reduces Pro-Inflammatory Cytokine Expression In Glioma Cells And Increases Activity And Survival In A Murine Model Of Cortical Tumor., Elizabeth Wells, Madhuri Kambhampati, Jesse M Damsker, Heather Gordish-Dressman, Sridevi Yadavilli, Oren J Becher, Jamila Gittens, Mojca Stampar, Roger J. Packer, Javad Nazarian

Genomics and Precision Medicine Faculty Publications

Corticosteroids, such as dexamethasone, are routinely used as palliative care in neuro-oncology for their anti-inflammatory benefits, however many patients experience dose limiting side effects caused by glucocorticoid response element (GRE)-mediated transcription. The purpose of this study was to use a murine model to investigate a new steroid alternative, vamorolone, which promises to reduce side effects through dissociating GRE-mediated transcription and NF-κB -mediated anti-inflammatory actions. To compare vamorolone to dexamethasone in reducing pro-inflammatory signals in vitro, murine glioma cells were treated with dexamethasone, vamorolone or vehicle control. Changes in mRNA expression were assessed using the nanostring inflammatory platform. Furthermore, drug …


Impact Of Time-Varying Treatment Exposures On The Risk Of Venous Thromboembolism In Multiple Myeloma, Joshua D. Brown, Val R. Adams, Daniela C. Moga Dec 2016

Impact Of Time-Varying Treatment Exposures On The Risk Of Venous Thromboembolism In Multiple Myeloma, Joshua D. Brown, Val R. Adams, Daniela C. Moga

Pharmacy Practice and Science Faculty Publications

Multiple myeloma (MM) has one of the highest risks of venous thromboembolism (VTE) of all cancers due to pathologic changes and treatment-related exposures. This study assessed the one-year incidence of VTE in newly diagnosed MM and to determine the baseline and time-varying treatment-related factors associated with VTE risk in a U.S.-based cohort. MM patients were identified and age, gender, and baseline comorbidities were determined. Treatment-related exposures included thalidomide derivatives (IMIDs), proteasome inhibitors, cytotoxic chemotherapy, steroids, erythropoietin-stimulating agents (ESAs), stem cell transplants (SCT), hospitalizations, infection, and central venous catheters (CVC). Multiple statistical models were used including a baseline competing risks model, …


The Hif/Phf8/Ar Axis Promotes Prostate Cancer Progression., D Tong, Q Liu, G Liu, W Yuan, L Wang, Y Guo, W Lan, Dianzheng Zhang, S Dong, Y Wang, H Xiao, J Mu, C Mao, J Wong, J Jiang Dec 2016

The Hif/Phf8/Ar Axis Promotes Prostate Cancer Progression., D Tong, Q Liu, G Liu, W Yuan, L Wang, Y Guo, W Lan, Dianzheng Zhang, S Dong, Y Wang, H Xiao, J Mu, C Mao, J Wong, J Jiang

PCOM Scholarly Papers

Recent studies provide strong evidence that the androgen receptor (AR) signaling pathway remains active in castration-resistant prostate cancer (CRPC). However, the underlying mechanisms are not well understood. In this study, we demonstrate that plant homeo domain finger protein 8 (PHF8 )interacts with and functions as an essential histone demethylase activity-dependent AR coactivator. Furthermore, we demonstrate that the expression of PHF8 is induced by hypoxia in various prostate cancer cell lines. Knockdown of either hypoxia-inducible factor HIF2α or HIF1α almost completely abolished hypoxia-induced PHF8 expression. Importantly, we observed that PHF8 is highly expressed in clinical androgen deprived prostate cancer samples and …


A Neuronal Network Of Mitochondrial Dynamics Regulates Metastasis., M. Cecilia Caino, Jae Ho Seo, Angeline Aguinaldo, Eric Wait, Kelly G. Bryant, Andrew V. Kossenkov, James E. Hayden, Valentina Vaira, Annamaria Morotti, Stefano Ferrero, Silvano Bosari, Dmitry I. Gabrilovich, Lucia R. Languino, Andrew R. Cohen, Dario C. Altieri Dec 2016

A Neuronal Network Of Mitochondrial Dynamics Regulates Metastasis., M. Cecilia Caino, Jae Ho Seo, Angeline Aguinaldo, Eric Wait, Kelly G. Bryant, Andrew V. Kossenkov, James E. Hayden, Valentina Vaira, Annamaria Morotti, Stefano Ferrero, Silvano Bosari, Dmitry I. Gabrilovich, Lucia R. Languino, Andrew R. Cohen, Dario C. Altieri

Department of Cancer Biology Faculty Papers

The role of mitochondria in cancer is controversial. Using a genome-wide shRNA screen, we now show that tumours reprogram a network of mitochondrial dynamics operative in neurons, including syntaphilin (SNPH), kinesin KIF5B and GTPase Miro1/2 to localize mitochondria to the cortical cytoskeleton and power the membrane machinery of cell movements. When expressed in tumours, SNPH inhibits the speed and distance travelled by individual mitochondria, suppresses organelle dynamics, and blocks chemotaxis and metastasis, in vivo. Tumour progression in humans is associated with downregulation or loss of SNPH, which correlates with shortened patient survival, increased mitochondrial trafficking to the cortical cytoskeleton, greater …


Mobilising Expertise And Resources To Close The Radiotherapy Gap In Cancer Care., D Rodin, J Longo, T Sherertz, M M Shah, O Balagun, N Wendling, Jacob Van Dyk, C N Coleman, M J Xu, S Grover Dec 2016

Mobilising Expertise And Resources To Close The Radiotherapy Gap In Cancer Care., D Rodin, J Longo, T Sherertz, M M Shah, O Balagun, N Wendling, Jacob Van Dyk, C N Coleman, M J Xu, S Grover

Oncology Publications

Closing the gap in cancer care within low- and middle-income countries and in indigenous and geographically isolated populations in high-income countries requires investment and innovation. This is particularly true for radiotherapy, for which the global disparity is one of the largest in healthcare today. New models and paradigms and non-traditional collaborations have been proposed to improve global equity in cancer control. We describe recent initiatives from within the radiation oncology community to increase access to treatment, build the low- and middle-income countries' radiation oncology workforce, mobilise more professionals from within high-income countries and raise awareness of the global need for …


Analysis Of Global Radiotherapy Needs And Costs By Geographic Region And Income Level., E Zubizarreta, Jacob Van Dyk, Y Lievens Dec 2016

Analysis Of Global Radiotherapy Needs And Costs By Geographic Region And Income Level., E Zubizarreta, Jacob Van Dyk, Y Lievens

Oncology Publications

Recent years have seen various reviews on the lack of access to radiotherapy often based on geographic regions of the world such as Africa, Asia Pacific, Europe, Latin America and North America. Countries are often defined by their national income per capita levels based on World Bank definitions of high income, upper middle income, lower middle income and low income. Within the world regions, there are significant variations in gross national income (GNI) per capita among the different countries, and even within similar income levels, large variations exist. This report presents the actual status of radiotherapy and analyses the current …


Hnrnpa2 Is A Novel Histone Acetyltransferase That Mediates Mitochondrial Stress-Induced Nuclear Gene Expression, Manti Guha, Satish Srinivasan, Kip Guja, Edison Mejia, Miguel Garcia-Diaz, F. Brad Johnson, Gordon Ruthel, Brett A. Kaufman, Eric F. Rappaport, M. Rebecca Glineburg, Ji-Kang Fang, Andres J. Klein-Szanto, Hiroshi Nakagawa, Jeelan Basha, Tapas Kundu, Narayan G. Avadhani Dec 2016

Hnrnpa2 Is A Novel Histone Acetyltransferase That Mediates Mitochondrial Stress-Induced Nuclear Gene Expression, Manti Guha, Satish Srinivasan, Kip Guja, Edison Mejia, Miguel Garcia-Diaz, F. Brad Johnson, Gordon Ruthel, Brett A. Kaufman, Eric F. Rappaport, M. Rebecca Glineburg, Ji-Kang Fang, Andres J. Klein-Szanto, Hiroshi Nakagawa, Jeelan Basha, Tapas Kundu, Narayan G. Avadhani

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

Reduced mitochondrial DNA copy number, mitochondrial DNA mutations or disruption of electron transfer chain complexes induce mitochondria-to-nucleus retrograde signaling, which induces global change in nuclear gene expression ultimately contributing to various human pathologies including cancer. Recent studies suggest that these mitochondrial changes cause transcriptional reprogramming of nuclear genes although the mechanism of this cross talk remains unclear. Here, we provide evidence that mitochondria-to-nucleus retrograde signaling regulates chromatin acetylation and alters nuclear gene expression through the heterogeneous ribonucleoprotein A2 (hnRNAP2). These processes are reversed when mitochondrial DNA content is restored to near normal cell levels. We show that the mitochondrial stress-induced …


Ido1 Is An Integral Mediator Of Inflammatory Neovascularization., Arpita Mondal, Courtney Smith, James B. Duhadaway, Erika Sutanto-Ward, George C. Prendergast, Arturo Bravo-Nuevo, Alexander J. Muller Dec 2016

Ido1 Is An Integral Mediator Of Inflammatory Neovascularization., Arpita Mondal, Courtney Smith, James B. Duhadaway, Erika Sutanto-Ward, George C. Prendergast, Arturo Bravo-Nuevo, Alexander J. Muller

Kimmel Cancer Center Papers, Presentations, and Grand Rounds

The immune tolerogenic effects of IDO1 (indoleamine 2,3-dioxygenase 1) have been well documented and genetic studies in mice have clearly established the significance of IDO1 in tumor promotion. Dichotomously, the primary inducer of IDO1, the inflammatory cytokine IFNγ (interferon-γ), is a key mediator of immune-based tumor suppression. One means by which IFNγ can exert an anti-cancer effect is by decreasing tumor neovascularization. We speculated that IDO1 might contribute to cancer promotion by countering this anti-neovascular effect of IFNγ, possibly through IDO1-potentiated elevation of the pro-tumorigenic inflammatory cytokine IL6 (interleukin-6). In this study, we investigated how genetic loss of IDO1 affects …


Prevalence Of Triple-Negative Breast Cancer In India: Systematic Review And Meta-Analysis, Gurprataap S. Sandhu, Sebhat Erqou, Heidi Patterson, Aju Mathew Dec 2016

Prevalence Of Triple-Negative Breast Cancer In India: Systematic Review And Meta-Analysis, Gurprataap S. Sandhu, Sebhat Erqou, Heidi Patterson, Aju Mathew

Markey Cancer Center Faculty Publications

Purpose There is considerable variation in prevalence rates of triple-negative breast cancer (TNBC) reported by various studies from India. We performed a systematic review and literature-based meta-analysis of these studies.

Methods We searched databases of Medline, Scopus, EMBASE, and Web of Science for studies that reported on the prevalence of TNBC in India that were published between January 1, 1999, and December 31, 2015. We extracted relevant information from each study by using a standardized form. We pooled study-specific estimates by using random-effects meta-analysis to provide summary estimates. We explored sources of heterogeneity by using subgroup analyses and metaregression.

Results …


Stars In Cytoplasm: Pediatric Neuroblastoma, Monazza Chaudhary, Shahzad Sarwar, Natasha Bahadur Ali Dec 2016

Stars In Cytoplasm: Pediatric Neuroblastoma, Monazza Chaudhary, Shahzad Sarwar, Natasha Bahadur Ali

Section of Haematology/Oncology

We report a case of a 2-year-old female child who presented with abdominal distention and fever. On examination, there was a palpable mass in the right hypochondrium. Computed tomography of the abdomen revealed a large mass in the right suprarenal area. Biopsy of the mass revealed malignant round blue cell neoplasm. Bone marrow examination showed diffuse infiltration with atypical mononuclear cells and cytogenetic studies showed positivity for NMyc translocation.


Mir-155 Expression And Correlation With Clinical Outcome In Pediatric Aml: A Report From Children's Oncology Group., Ranjani Ramamurthy, Maya Hughes, Valerie Morris, Hamid Bolouri, Robert B. Gerbing, Yi-Cheng Wang, Michael R. Loken, Susana C. Raimondi, Betsy A. Hirsch, A S. Gamis, Vivian G. Oehler, Todd A. Alonzo, Soheil Meshinchi Dec 2016

Mir-155 Expression And Correlation With Clinical Outcome In Pediatric Aml: A Report From Children's Oncology Group., Ranjani Ramamurthy, Maya Hughes, Valerie Morris, Hamid Bolouri, Robert B. Gerbing, Yi-Cheng Wang, Michael R. Loken, Susana C. Raimondi, Betsy A. Hirsch, A S. Gamis, Vivian G. Oehler, Todd A. Alonzo, Soheil Meshinchi

Manuscripts, Articles, Book Chapters and Other Papers

BACKGROUND: Aberrant expression of microRNA-155 (miR-155) has been implicated in acute myeloid leukemia (AML) and associated with clinical outcome.

PROCEDURE: We evaluated miR-155 expression in 198 children with normal karyotype AML (NK-AML) enrolled in Children's Oncology Group (COG) AML trial AAML0531 and correlated miR-155 expression levels with disease characteristics and clinical outcome. Patients were divided into quartiles (Q1-Q4) based on miR-155 expression level, and disease characteristics were then evaluated and correlated with miR-155 expression.

RESULTS: MiR-155 expression varied over 4-log10-fold range relative to its expression in normal marrow with a median expression level of 0.825 (range 0.043-25.630) for the entire …


The Potential Roles Of Long Noncoding Rnas (Lncrna) In Glioblastoma Development, Shuang Liu, Ramkrishna Mitra, Ming-Ming Zhao, Wenhong Fan, Christine M. Eischen, Feng Yin, Zhongming Zhao Dec 2016

The Potential Roles Of Long Noncoding Rnas (Lncrna) In Glioblastoma Development, Shuang Liu, Ramkrishna Mitra, Ming-Ming Zhao, Wenhong Fan, Christine M. Eischen, Feng Yin, Zhongming Zhao

Department of Cancer Biology Faculty Papers

Long noncoding RNA (lncRNA) may contribute to the initiation and progression of tumor. In this study, we first systematically compared lncRNA and mRNA expression between glioblastoma and paired normal brain tissues using microarray data. We found 27 lncRNA and 82 mRNA significantly upregulated in glioblastoma, as well as 198 lncRNA and 285 mRNA significantly downregulated in glioblastoma. We identified 138 coexpressed lncRNA–mRNA pairs from these differentially expressed lncRNA and genes. Subsequent pathway analysis of the lncRNA-paired genes indicated that EphrinB–EPHB, p75-mediated signaling, TNFα/NF-κB, and ErbB2/ErbB3 signaling pathways might be altered in glioblastoma. Specifically, lncRNA RAMP2-AS1 had significant decrease of expression …


Plasma Processes And Polymers Third Special Issue On Plasma And Cancer, Mounir Laroussi, Annemie Bogaerts, Nazir Barekzi Dec 2016

Plasma Processes And Polymers Third Special Issue On Plasma And Cancer, Mounir Laroussi, Annemie Bogaerts, Nazir Barekzi

Electrical & Computer Engineering Faculty Publications

(First paragraph) This issue of Plasma Processes and Polymers is the third in a series on the applications of low temperature plasma (LTP) against cancer, or “plasma oncology.” The papers in this issue are inspired from the talks given at the third International Workshop on Plasma for Cancer Treatment (IWPCT) which took place on April 11–12, 2016 in Washington, DC, USA. IWPCT is an international workshop that was created in 2014 as a venue to share cutting edge plasma oncology research. The first IWPCT was held in Washington DC, under the co-chairmanship of Prof. Mounir Laroussi (Old Dominion University) and …


Erratum To: High Expression Of Myocyte Enhancer Factor 2c (Mef2c) Is Associated With Adverse-Risk Features And Poor Outcome In Pediatric Acute Myeloid Leukemia: A Report From The Children's Oncology Group., George S. Laszlo, Todd A. Alonzo, Chelsea J. Gudgeon, Kimberly H. Harrington, Alex Kentsis, Robert B. Gerbing, Yi-Cheng Wang, Rhonda E. Ries, Susana C. Raimondi, Betsy A. Hirsch, A S. Gamis, Soheil Meshinchi, Roland B. Walter Nov 2016

Erratum To: High Expression Of Myocyte Enhancer Factor 2c (Mef2c) Is Associated With Adverse-Risk Features And Poor Outcome In Pediatric Acute Myeloid Leukemia: A Report From The Children's Oncology Group., George S. Laszlo, Todd A. Alonzo, Chelsea J. Gudgeon, Kimberly H. Harrington, Alex Kentsis, Robert B. Gerbing, Yi-Cheng Wang, Rhonda E. Ries, Susana C. Raimondi, Betsy A. Hirsch, A S. Gamis, Soheil Meshinchi, Roland B. Walter

Manuscripts, Articles, Book Chapters and Other Papers

No abstract provided.


Logic Models To Predict Continuous Outputs Based On Binary Inputs With An Application To Personalized Cancer Therapy., Theo A Knijnenburg, Gunnar W Klau, Francesco Iorio, Mathew J Garnett, Ultan Mcdermott, Ilya Shmulevich, Lodewyk F A Wessels Nov 2016

Logic Models To Predict Continuous Outputs Based On Binary Inputs With An Application To Personalized Cancer Therapy., Theo A Knijnenburg, Gunnar W Klau, Francesco Iorio, Mathew J Garnett, Ultan Mcdermott, Ilya Shmulevich, Lodewyk F A Wessels

Articles, Abstracts, and Reports

Mining large datasets using machine learning approaches often leads to models that are hard to interpret and not amenable to the generation of hypotheses that can be experimentally tested. We present 'Logic Optimization for Binary Input to Continuous Output' (LOBICO), a computational approach that infers small and easily interpretable logic models of binary input features that explain a continuous output variable. Applying LOBICO to a large cancer cell line panel, we find that logic combinations of multiple mutations are more predictive of drug response than single gene predictors. Importantly, we show that the use of the continuous information leads to …


Accuracy Requirements And Uncertainties In Radiotherapy: A Report Of The International Atomic Energy Agency., Debbie Van Der Merwe, Jacob Van Dyk, Brendan Healy, Eduardo Zubizarreta, Joanna Izewska, Ben Mijnheer, Ahmed Meghzifene Nov 2016

Accuracy Requirements And Uncertainties In Radiotherapy: A Report Of The International Atomic Energy Agency., Debbie Van Der Merwe, Jacob Van Dyk, Brendan Healy, Eduardo Zubizarreta, Joanna Izewska, Ben Mijnheer, Ahmed Meghzifene

Oncology Publications

BACKGROUND: Radiotherapy technology continues to advance and the expectation of improved outcomes requires greater accuracy in various radiotherapy steps. Different factors affect the overall accuracy of dose delivery. Institutional comprehensive quality assurance (QA) programs should ensure that uncertainties are maintained at acceptable levels. The International Atomic Energy Agency has recently developed a report summarizing the accuracy achievable and the suggested action levels, for each step in the radiotherapy process. Overview of the report: The report seeks to promote awareness and encourage quantification of uncertainties in order to promote safer and more effective patient treatments. The radiotherapy process and the radiobiological …


V-Src Oncogene Induces Trop2 Proteolytic Activation Via Cyclin D1., Xiaoming Ju, Xuanmao Jiao, Adam Ertel, Mathew C. Casimiro, Gabriele Disante, Shengqiong Deng, Zhiping Li, Agnese Di Rocco, Tingting Zhan, Adam Hawkins, Tanya Stoyanova, Sebastiano Andò, Alessandro Fatatis, Michael P. Lisanti, Leonard G. Gomella, Lucia R. Languino, Richard G. Pestell Nov 2016

V-Src Oncogene Induces Trop2 Proteolytic Activation Via Cyclin D1., Xiaoming Ju, Xuanmao Jiao, Adam Ertel, Mathew C. Casimiro, Gabriele Disante, Shengqiong Deng, Zhiping Li, Agnese Di Rocco, Tingting Zhan, Adam Hawkins, Tanya Stoyanova, Sebastiano Andò, Alessandro Fatatis, Michael P. Lisanti, Leonard G. Gomella, Lucia R. Languino, Richard G. Pestell

Department of Cancer Biology Faculty Papers

Proteomic analysis of castration-resistant prostate cancer demonstrated the enrichment of Src tyrosine kinase activity in approximately 90% of patients. Src is known to induce cyclin D1, and a cyclin D1-regulated gene expression module predicts poor outcome in human prostate cancer. The tumor-associated calcium signal transducer 2 (TACSTD2/Trop2/M1S1) is enriched in the prostate, promoting prostate stem cell self-renewal upon proteolytic activation via a γ-secretase cleavage complex (PS1, PS2) and TACE (ADAM17), which releases the Trop2 intracellular domain (Trop2 ICD). Herein, v-Src transformation of primary murine prostate epithelial cells increased the proportion of prostate cancer stem cells as characterized by gene expression, …


Radiation Oncology Quality And Safety Considerations In Low Resource Settings: A Medical Physics Perspective, Jacob Van Dyk, Ahmed Meghzifene Nov 2016

Radiation Oncology Quality And Safety Considerations In Low Resource Settings: A Medical Physics Perspective, Jacob Van Dyk, Ahmed Meghzifene

Oncology Publications

The last few years have seen a significant growth of interest in the global radiation therapy crisis. Various organizations have quantified the need and are providing aid in support of addressing the shortfalls existing in many low-to-middle income countries (LMICs). With the tremendous demand for new facilities, equipment and personnel, it is very important to recognize the quality and safety challenges and to address them directly. An examination of publications on quality and safety in radiation therapy indicates a consistency in a number of the recommendations; however, these authoritative reports were generally based on input from high-resourced contexts. Here we …


Photothermal Therapy Improves The Efficacy Of A Mek Inhibitor In Neurofibromatosis Type 1-Associated Malignant Peripheral Nerve Sheath Tumors., Elizabeth E. Sweeney, Rachel A. Burga, Chaoyang Li, Yuan Zhu, Rohan Fernandes Nov 2016

Photothermal Therapy Improves The Efficacy Of A Mek Inhibitor In Neurofibromatosis Type 1-Associated Malignant Peripheral Nerve Sheath Tumors., Elizabeth E. Sweeney, Rachel A. Burga, Chaoyang Li, Yuan Zhu, Rohan Fernandes

Pediatrics Faculty Publications

Malignant peripheral nerve sheath tumors (MPNSTs) are aggressive tumors with low survival rates and the leading cause of death in neurofibromatosis type 1 (NF1) patients under 40 years old. Surgical resection is the standard of care for MPNSTs, but is often incomplete and can generate loss of function, necessitating the development of novel treatment methods for this patient population. Here, we describe a novel combination therapy comprising MEK inhibition and nanoparticle-based photothermal therapy (PTT) for MPNSTs. MEK inhibitors block activity driven by Ras, an oncogene constitutively activated in NF1-associated MPNSTs, while PTT serves as a minimally invasive method to ablate …


Does Travel Time To A Radiation Facility Impact Patient Decision-Making Regarding Treatment For Prostrate Cancer? A Study Of The New Hampshire State Cancer Registry, Fady Ghali, Maria Celaya, Michael Laviolette, Johann Ingimarsson, Heather Carlos, Judy R. Rees, Elias Hyams Nov 2016

Does Travel Time To A Radiation Facility Impact Patient Decision-Making Regarding Treatment For Prostrate Cancer? A Study Of The New Hampshire State Cancer Registry, Fady Ghali, Maria Celaya, Michael Laviolette, Johann Ingimarsson, Heather Carlos, Judy R. Rees, Elias Hyams

Dartmouth Scholarship

Purpose: We sought to determine whether further distance from a radiation center is associated with lower utilization of external beam radiation therapy (XRT). Methods: We retrospectively identified patients with a new diagnosis of localized prostate cancer (CaP) within the New Hampshire State Cancer Registry from 2004 to 2011. Patients were categorized by age, D’Amico risk category, year of treatment, marital status, season of diagnosis, urban/rural residence, and driving time to the nearest radiation facility. Treatment decisions were stratified into those requiring multiple trips (XRT) or a single trip (surgery or brachytherapy). Multivariable regression analysis was performed. Results: A total of …


Numerical Investigation Of Novel Microwave Applicators Based On Zero-Order Mode Resonance For Hyperthermia Treatment Of Cancer, David Vrba, Jan Vrba, Dario B. Rodrigues, Paul R. Stauffer Nov 2016

Numerical Investigation Of Novel Microwave Applicators Based On Zero-Order Mode Resonance For Hyperthermia Treatment Of Cancer, David Vrba, Jan Vrba, Dario B. Rodrigues, Paul R. Stauffer

Department of Radiation Oncology Faculty Papers

This paper characterizes three novel microwave applicators based on zero-order mode resonators for use in hyperthermia treatment of cancer. The radiation patterns are studied with numerical simulations in muscle tissue-equivalent model at 434 MHz. The relative performance of the applicators is compared in terms of reflection coefficient, current distribution, power deposition (SAR) pattern, effective field size in 2D and 3D tissue volumes, and penetration depth. One particular configuration generated the most uniform SAR pattern, with 25% SAR covering 84 % of the treatment volume extending to 1 cm depth under the aperture, while remaining above 58% coverage as deep as …


Celecoxib Inhibits Proliferation And Survival Of Chronic Myelogeous Leukemia (Cml) Cells Via Ampk-Dependent Regulation Of Β-Catenin And Mtorc1/2., Beatrice Riva, Marco De Dominici, Ilaria Gnemmi, Samanta A. Mariani, Alberto Minassi, Valentina Minieri, Paolo Salomoni, Pier Luigi Canonico, Armando A Genazzani, Bruno Calabretta, Fabrizio Condorelli Nov 2016

Celecoxib Inhibits Proliferation And Survival Of Chronic Myelogeous Leukemia (Cml) Cells Via Ampk-Dependent Regulation Of Β-Catenin And Mtorc1/2., Beatrice Riva, Marco De Dominici, Ilaria Gnemmi, Samanta A. Mariani, Alberto Minassi, Valentina Minieri, Paolo Salomoni, Pier Luigi Canonico, Armando A Genazzani, Bruno Calabretta, Fabrizio Condorelli

Kimmel Cancer Center Papers, Presentations, and Grand Rounds

CML is effectively treated with tyrosine kinase inhibitors (TKIs). However, the efficacy of these drugs is confined to the chronic phase of the disease and development of resistance to TKIs remains a pressing issue. The anti-inflammatory COX2 inhibitor celecoxib has been utilized as anti-tumour drug due to its anti-proliferative activity. However, its effects in hematological malignancies, in particular CML, have not been investigated yet. Thus, we tested biological effects and mechanisms of action of celecoxib in Philadelphia-positive (Ph+) CML and ALL cells.We show here that celecoxib suppresses the growth of Ph+ cell lines by increasing G1-phase and apoptotic cells and …


Cd99 Triggering Induces Methuosis Of Ewing Sarcoma Cells Through Igf-1r/Ras/Rac1 Signaling., Maria Cristina Manara, Mario Terracciano, Caterina Mancarella, Marika Sciandra, Clara Guerzoni, Michela Pasello, Andrea Grilli, Nicoletta Zini, Piero Picci, Mario P. Colombo, Andrea Morrione, Katia Scotlandi Nov 2016

Cd99 Triggering Induces Methuosis Of Ewing Sarcoma Cells Through Igf-1r/Ras/Rac1 Signaling., Maria Cristina Manara, Mario Terracciano, Caterina Mancarella, Marika Sciandra, Clara Guerzoni, Michela Pasello, Andrea Grilli, Nicoletta Zini, Piero Picci, Mario P. Colombo, Andrea Morrione, Katia Scotlandi

Department of Urology Faculty Papers

CD99 is a cell surface molecule that has emerged as a novel target for Ewing sarcoma (EWS), an aggressive pediatric bone cancer. This report provides the first evidence of methuosis in EWS, a non-apoptotic form of cell death induced by an antibody directed against the CD99 molecule. Upon mAb triggering, CD99 induces an IGF-1R/RAS/Rac1 complex, which is internalized into RAB5-positive endocytic vacuoles. This complex is then dissociated, with the IGF-1R recycling to the cell membrane while CD99 and RAS/Rac1 are sorted into immature LAMP-1-positive vacuoles, whose excessive accumulation provokes methuosis. This process, which is not detected in CD99-expressing normal mesenchymal …


Targeted And Controlled Anticancer Drug Delivery And Release With Magnetoelectric Nanoparticles, Alexandra Rodzinski Nov 2016

Targeted And Controlled Anticancer Drug Delivery And Release With Magnetoelectric Nanoparticles, Alexandra Rodzinski

FIU Electronic Theses and Dissertations

A major challenge of cancer treatment is successful discrimination of cancer cells from healthy cells. Nanotechnology offers multiple venues for efficient cancer targeting. Magnetoelectric nanoparticles (MENs) are a novel, multifaceted, physics-based cancer treatment platform that enables high specificity cancer targeting and externally controlled loaded drug release. The unique magnetoelectric coupling of MENs allows them to convert externally applied magnetic fields into intrinsic electric signals, which allows MENs to both be drawn magnetically towards the cancer site and to electrically interface with cancer cells. Once internalized, the MEN payload release can be externally triggered with a magnetic field. MENs uniquely allow …


Shorter Remission Telomere Length Predicts Delayed Neutrophil Recovery After Acute Myeloid Leukemia Therapy: A Report From The Children's Oncology Group., Robert B. Gerbing, Todd A. Alonzo, Lillian Sung, Alan S. Gamis, Soheil Meshinchi, Sharon E. Plon, Alison A. Bertuch, Maria M. Gramatges Nov 2016

Shorter Remission Telomere Length Predicts Delayed Neutrophil Recovery After Acute Myeloid Leukemia Therapy: A Report From The Children's Oncology Group., Robert B. Gerbing, Todd A. Alonzo, Lillian Sung, Alan S. Gamis, Soheil Meshinchi, Sharon E. Plon, Alison A. Bertuch, Maria M. Gramatges

Manuscripts, Articles, Book Chapters and Other Papers

Purpose Suboptimal outcomes for children with acute myeloid leukemia (AML) necessitate maximally intensive therapy. Consequently, serious adverse events, such as prolonged periods of profound myelosuppression, contribute to AML treatment-related mortality. Telomeres, the repetitive DNA-protein structures at chromosome ends, influence cellular replicative capacity in that critically short telomeres can induce cell senescence or apoptosis. Our objective was to evaluate the impact of telomere length on duration of post-therapy neutropenia in a pediatric AML cohort. Patients and Methods Patients were diagnosed with de novo AML, enrolled in Children's Oncology Group study AAML0531, and included those with (n = 53) and without (n …


Processing Information After A Child's Cancer Diagnosis-How Parents Learn., Cheryl C. Rodgers, Kristin Stegenga, Janice S. Withycombe, Karen Sachse, Katherine Patterson Kelly Nov 2016

Processing Information After A Child's Cancer Diagnosis-How Parents Learn., Cheryl C. Rodgers, Kristin Stegenga, Janice S. Withycombe, Karen Sachse, Katherine Patterson Kelly

Manuscripts, Articles, Book Chapters and Other Papers

Parents of a child newly diagnosed with cancer must receive an extensive amount of information before their child's initial hospital discharge; however, little is known about best practices for providing this education. An interpretive descriptive study design was used to describe actual and preferred educational content, timing, and methods among parents of children newly diagnosed with cancer prior to their child's first hospital discharge. Twenty parents of children diagnosed with various malignancies participated in individual interviews 2 to 12 months after their child's diagnosis. Data were analyzed using constant comparative analysis. Education delivery occurred in a telling manner at diagnosis …


Association Between Prolonged Neutropenia And Reduced Relapse Risk In Pediatric Aml: A Report From The Children's Oncology Group., Lillian Sung, Richard Aplenc, Todd A. Alonzo, Robert B. Gerbing, Yi-Cheng Wang, Soheil Meshinchi, A S. Gamis Nov 2016

Association Between Prolonged Neutropenia And Reduced Relapse Risk In Pediatric Aml: A Report From The Children's Oncology Group., Lillian Sung, Richard Aplenc, Todd A. Alonzo, Robert B. Gerbing, Yi-Cheng Wang, Soheil Meshinchi, A S. Gamis

Manuscripts, Articles, Book Chapters and Other Papers

Objective was to describe the relationship between the number of sterile site infections and duration of neutropenia during the first four cycles of chemotherapy and the risk of recurrence and overall survival in children with newly diagnosed acute myeloid leukemia (AML). AAML0531 was a Children's Oncology Group randomized phase 3 clinical trial that included 1022 children with de novo AML. For this analysis, we focused on non-Down syndrome favorable and standard risk patients who completed at least 4 cycles of chemotherapy without recurrence or withdrawal during protocol therapy. Those receiving hematopoietic stem cell transplantation in first remission were excluded. Five …


Establishment Of Site Specific Multi Disciplinary Tumour Boards In Pakistan -Is It Really Necessary To Discuss All Cancer Cases In Multidisciplinary Tumour Board Meetings?, Ahmed Nadeem Abbasi Nov 2016

Establishment Of Site Specific Multi Disciplinary Tumour Boards In Pakistan -Is It Really Necessary To Discuss All Cancer Cases In Multidisciplinary Tumour Board Meetings?, Ahmed Nadeem Abbasi

Department of Radiation Oncology

No abstract provided.