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https://www.readbyqxmd.com/read/29198608/synthesis-and-evaluation-of-18f-hexafluorophosphate-as-a-novel-pet-probe-for-imaging-of-sodium-iodide-symporter-in-a-murine-c6-glioma-tumor-model
#1
Huailei Jiang, Aditya Bansal, Ribu Goyal, Kah-Whye Peng, Stephen J Russell, Timothy R DeGrado
Noninvasive imaging of iodide uptake via the sodium/iodide symporter (NIS) has received great interest for evaluation of thyroid cancer and reporter imaging of NIS-expressing viral therapies. In this study, we investigate 18F-labeled hexafluorophosphate (HFP or PF6-) as a high-affinity iodide analog for NIS imaging. 18F-HFP was synthesized by radiofluorination of phosphorus pentafluoride·N-methylpyrrolidine complex and evaluated in human NIS (hNIS)-expressing C6 glioma cells and a C6 glioma xenograft mouse model...
November 23, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/29190908/egfr-targeted-nonviral-nis-gene-transfer-for-bioimaging-and-therapy-of-disseminated-colon-cancer-metastases
#2
Sarah Urnauer, Andrea M Müller, Christina Schug, Kathrin A Schmohl, Mariella Tutter, Nathalie Schwenk, Wolfgang Rödl, Stephan Morys, Michael Ingrisch, Jens Bertram, Peter Bartenstein, Dirk-André Clevert, Ernst Wagner, Christine Spitzweg
Liver metastases present a serious problem in the therapy of advanced colorectal cancer (CRC), as more than 20% of patients have distant metastases at the time of diagnosis with less than 5% being cured. Consequently, new therapeutic approaches are of major need together with high-resolution imaging methods that allow highly specific detection of small metastases. The unique combination of reporter and therapy gene function of the sodium iodide symporter (NIS) may represent a promising theranostic strategy for CRC liver metastases allowing non-invasive imaging of functional NIS expression and therapeutic application of 131I...
November 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/29160164/rutin-scavenges-reactive-oxygen-species-inactivates-5-adenosine-monophosphate-activated-protein-kinase-ampk-and-increases-nis-expression-in-thyroid-pccl3-cells
#3
Carlos Frederico Lima Gonçalves, Mariana Lopes de Freitas, Rodrigo Soares Fortunato, Leandro Miranda-Alves, Denise Pires de Carvalho, Andrea Claudia Freitas Ferreira
BACKGROUND: Thyroid iodide uptake, mediated by the sodium-iodide symporter (NIS), is essential for thyroid hormone synthesis and also for treatment of thyroid diseases, such as thyroid cancer, through radioiodine therapy. Therefore, compounds able to increase thyroid iodide uptake could be clinically useful, and it is of great importance to unravel the mechanisms underlying such effect. We have previously shown that the flavonoid rutin increases thyroid radioiodide uptake in vivo, in rats...
November 21, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/29158470/comparative-oncology-evaluation-of-intravenous-recombinant-oncolytic-vesicular-stomatitis-virus-therapy-in-spontaneous-canine-cancer
#4
Shruthi Naik, Gina D Galyon, Nathan J Jenks, Michael B Steele, Amber C Miller, Sara D Allstadt, Lukkana Suksanpaisan, Kah Whye Peng, Mark J Federspiel, Stephen J Russell, Amy K LeBlanc
Clinical translation of intravenous therapies to treat disseminated or metastatic cancer is imperative. Comparative oncology, the evaluation of novel cancer therapies in animals with spontaneous cancer, can be utilized to inform and accelerate clinical translation. Preclinical murine studies demonstrate that single shot systemic therapy with a VSV-IFNβ-NIS, a novel recombinant oncolytic Vesicular stomatitis virus (VSV), can induce curative remission in tumor bearing mice. Clinical translation of VSV-IFNβ-NIS therapy is dependent on comprehensive assessment of clinical toxicities, virus shedding, pharmacokinetics, and efficacy in clinically relevant models...
November 20, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/29141457/disparities-associated-with-inpatient-palliative-care-utilization-by-patients-with-metastatic-gynecologic-cancers-a-study-of-3337-women
#5
Emily B Rosenfeld, John K Chan, Austin B Gardner, Natasha Curry, Lejla Delic, Daniel S Kapp
OBJECTIVE: To determine the factors associated with inpatient palliative care (PC) use in patients with metastatic gynecologic cancer. METHODS: Data were obtained from the Nationwide Inpatient Sample (NIS) for patients with metastatic cervical, uterine, and ovarian cancers. Chi-square and multivariate models were used for statistical analyses. RESULTS: Of 67 947 inpatients with metastatic gynecologic cancer, 3337 (5%) utilized PC (median age: 63 years, range: 18-102 years)...
January 1, 2017: American Journal of Hospice & Palliative Care
https://www.readbyqxmd.com/read/29096502/how-does-methylation-suppress-the-electron-induced-decomposition-of-1-methyl-nitroimidazoles
#6
F Kossoski, M T do N Varella
The efficient decomposition of nitroimidazoles (NIs) by low energy electrons is believed to underlie their radiosensitizing properties. Recent dissociative electron attachment (DEA) measurements showed that methylation at the N1 site unexpectedly suppresses the electron-induced reactions in 4(5)-NI. We report theoretical results that provide a clear interpretation of that astounding finding. Around 1.5 eV, DEA reactions into several fragments are initiated by a π(*) resonance, not considered in previous studies...
October 28, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/29080017/safety-pharmacokinetics-metabolism-and-radiation-dosimetry-of-18-f-tetrafluoroborate-18-f-tfb-in-healthy-human-subjects
#7
Huailei Jiang, Nicholas R Schmit, Alex R Koenen, Aditya Bansal, Mukesh K Pandey, Robert B Glynn, Bradley J Kemp, Kera L Delaney, Angela Dispenzieri, Jamie N Bakkum-Gamez, Kah-Whye Peng, Stephen J Russell, Tina M Gunderson, Val J Lowe, Timothy R DeGrado
BACKGROUND: (18)F-Tetrafluoroborate ((18)F-TFB) is a promising iodide analog for PET imaging of thyroid cancer and sodium/iodide symporter (NIS) reporter activity in viral therapy applications. The aim of this study was to evaluate the safety, pharmacokinetics, biodistribution, and radiation dosimetry of high-specific activity (18)F-TFB in healthy human subjects. METHODS: (18)F-TFB was synthesized with specific activity of 3.2 ± 1.3 GBq/μmol (at the end of synthesis)...
October 27, 2017: EJNMMI Research
https://www.readbyqxmd.com/read/29032724/reintroducing-the-sodium-iodide-symporter-to-anaplastic-thyroid-carcinoma
#8
Kathrin A Schmohl, Patrick Dolp, Christina Schug, Kerstin Knoop, Kathrin Klutz, Nathalie Schwenk, Peter Bartenstein, Peter J Nelson, Manfred Ogris, Ernst Wagner, Christine Spitzweg
BACKGROUND: Anaplastic thyroid carcinoma (ATC), the most aggressive form of thyroid cancer, is unresponsive to radioiodine therapy. The current study aimed to extend the diagnostic and therapeutic application of radioiodine beyond the treatment of differentiated thyroid cancer by targeting the functional sodium-iodide symporter (NIS) to ATC. METHODS: The study employed nanoparticle vectors (polyplexes) based on linear polyethylenimine (LPEI), shielded by polyethylene glycol (PEG) and coupled to the synthetic peptide GE11 as an epidermal growth factor receptor (EGFR)-specific ligand in order to target a NIS-expressing plasmid (LPEI-PEG-GE11/NIS) to EGFR overexpressing human thyroid carcinoma cell lines...
November 10, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28990511/sunitinib-in-the-treatment-of-thyroid-cancer
#9
Ferrari Silvia Martinaa, Centanni Marco, Virili Camilla, Miccoli Mario, Ferrari Paola, Ruffilli Ilaria, Ragusa Francesca, Antonelli Alessandro, Fallahi Poupak
BACKGROUND: Sunitinib (SU11248) is an oral, small-molecule, multi-targeted tyrosine kinase inhibitor (TKI), that inhibits receptors for platelet-derived growth factor (PDGF-Rs) and vascular endothelial growth factor receptors (VEGFRs), c-KIT, fms-related tyrosine kinase 3 (FLT3) and RET. The concurrent inhibition of these pathways reduces tumor vascularization and causes cancer cell apoptosis, inducing a tumor shrinkage. Sunitinib is approved for the treatment of imatinib-resistant gastrointestinal stromal tumor (GIST), renal carcinoma, and pancreatic neuroendocrine tumors...
October 6, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28957796/wild-type-p53-induces-sodium-iodide-symporter-expression-allowing-radioiodide-therapy-in-anaplastic-thyroid-cancer
#10
Lin Liu, Dan Li, Zhengqi Chen, Jian Yang, Yushui Ma, Haidong Cai, Chengxiang Shan, Zhongwei Lv, Xiaoping Zhang
AIMS: Anaplastic thyroid cancer(ATC) is one of the most aggressive solid tumors. Mutations in the p53 gene are common in anaplastic thyroid cancer, but the effects of p53 mutations are yet to be elucidated. Here, we investigated the role of p53 in ATC. METHODS: p53 mutation was detect by immunohistochemistry in ATC tissues. Expression of NIS were measured using immunohistochemistry, qRT-PCR, western blot, immunofluorescence in ATC tissues and cell line 8505c. Luciferase reporter assay was performed to examine the effect of wild-type p53 on NIS...
2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28904174/in-hospital-outcomes-of-tumor-lysis-syndrome-a-population-based-study-using-the-national-inpatient-sample
#11
Urshila Durani, Nilay D Shah, Ronald S Go
The epidemiology and outcomes of tumor lysis syndrome (TLS) are understudied. We used the National Inpatient Sample (NIS), a nationally representative weighted sample of all U.S. hospital discharges, to study outcomes and predictors of mortality in hospitalized patients with TLS. The NIS was queried for patients with a discharge diagnosis of TLS (ICD-9 code 277.88) from 2010-2013. Baseline characteristics and outcomes were analyzed. A multivariable logistic regression analysis was performed to identify predictors of mortality...
September 13, 2017: Oncologist
https://www.readbyqxmd.com/read/28882352/adult-spinal-deformity-national-trends-in-the-presentation-treatment-and-perioperative-outcomes-from-2003-to-2010
#12
Peter G Passias, Cyrus M Jalai, Nancy Worley, Shaleen Vira, Bryan Marascalchi, Shearwood McClelland, Virginie Lafage, Thomas J Errico
STUDY DESIGN: Retrospective review of a prospective database. OBJECTIVES: To investigate adult spinal deformity (ASD) surgery outcome trends on a nationwide scale using the Nationwide Inpatient Sample (NIS) from 2003 to 2010. METHODS: ASD patients ≥25 years from 2003 to 2010 in the NIS undergoing anterior, posterior, or combined surgical approaches were included. Fractures, 9+ levels fused, or any cancer were excluded. Patient demographics, hospital data, and procedure-related complications were evaluated...
September 2017: Spine Deformity
https://www.readbyqxmd.com/read/28881379/trends-in-major-upper-abdominal-surgery-for-cancer-in-octogenarians-has-there-been-a-change-in-patient-selection
#13
Madalyn G Neuwirth, Christine Bierema, Andrew J Sinnamon, Douglas L Fraker, Rachel R Kelz, Robert E Roses, Giorgos C Karakousis
BACKGROUND: Although there is a general perception that, as the older population grows in number, more are undergoing surgery, there are few data on trends in major resections for cancer and short-term outcomes in this group. METHODS: The Nationwide Inpatient Sample was (NIS) used to estimate the national trends of major upper abdominal resections (esophagus, stomach, liver, pancreas) for cancer in octogenarians (aged ≥80 years) from 2001 to 2011. Resection rates performed per year were incidence-adjusted within this age group for each cancer type as determined by the NIS database...
September 7, 2017: Cancer
https://www.readbyqxmd.com/read/28866023/where-do-transrectal-ultrasound-and-magnetic-resonance-imaging-guided-biopsies-miss-significant-prostate-cancer
#14
Lars Boesen, Nis Nørgaard, Vibeke Løgager, Ingegerd Balslev, Henrik S Thomsen
OBJECTIVE: To identify the location of missed significant prostate cancer (sPCa) lesions by transrectal ultrasound-guided biopsy (TRUSbx) and multiparametric magnetic resonance imaging-guided biopsy (mpMRIbx) in men undergoing repeat biopsies. MATERIALS AND METHODS: A total of 289 men with prior negative TRUSbx underwent multiparametric magnetic resonance imaging. The location of any suspicious lesion was registered and scored using Prostate Imaging Reporting and Data System version 1 classification according to the likelihood of being sPCa...
September 1, 2017: Urology
https://www.readbyqxmd.com/read/28843268/effects-of-a-phosphoinositide-3-kinase-inhibitor-on-anaplastic-thyroid-cancer-stem-cells
#15
Farzaneh Bozorg-Ghalati, Mehdi Hedayati, Mehdi Dianatpour, Fereidoun Azizi, Nariman Mosaffa, Davood Mehrabani
Background: Thyroidectomy, radioactive iodine therapy, chemotherapy, or their combination are treatments of choice for thyroid cancers. However, cancer stem cells (CSCs) may become resistant to therapy, and mutations in somatic genes affect radioiodine uptake. This study determined the effect of a phosphoinositide-3-kinase (PI3K) inhibitor on anaplastic thyroid CSCs. Materials and Methods: The magnetic-activated cell sorting assay was used for segregating CD133-positive CSCs from three anaplastic thyroid carcinoma (ATC) cell lines (C643, SW1736, and 8305C)...
August 27, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28841106/a-novel-index-for-quantifying-the-risk-of-early-complications-for-patients-undergoing-cervical-spine-surgeries
#16
Peter G Passias, Bassel G Diebo, Bryan J Marascalchi, Cyrus M Jalai, Samantha R Horn, Peter L Zhou, Karen Paltoo, Olivia J Bono, Nancy Worley, Gregory W Poorman, Vincent Challier, Anant Dixit, Carl Paulino, Virginie Lafage
OBJECTIVE It is becoming increasingly necessary for surgeons to provide evidence supporting cost-effectiveness of surgical treatment for cervical spine pathology. Anticipating surgical risk is critical in accurately evaluating the risk/benefit balance of such treatment. Determining the risk and cost-effectiveness of surgery, complications, revision procedures, and mortality rates are the most significant limitations. The purpose of this study was to determine independent risk factors for medical complications (MCs), surgical complications (SCs), revisions, and mortality rates following surgery for patients with cervical spine pathology...
November 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28837546/national-regional-state-and-selected-local-area-vaccination-coverage-among-adolescents-aged-13-17-years-united-states-2016
#17
Tanja Y Walker, Laurie D Elam-Evans, James A Singleton, David Yankey, Lauri E Markowitz, Benjamin Fredua, Charnetta L Williams, Sarah A Meyer, Shannon Stokley
The Advisory Committee on Immunization Practices (ACIP) recommends that adolescents routinely receive tetanus, diphtheria, and acellular pertussis vaccine (Tdap), meningococcal conjugate vaccine (MenACWY), and human papillomavirus (HPV) vaccine (1) at age 11-12 years. ACIP also recommends catch-up vaccination with hepatitis B vaccine, measles, mumps, and rubella (MMR) vaccine, and varicella vaccine for adolescents who are not up to date with childhood vaccinations. ACIP recommends a booster dose of MenACWY at age 16 years (1)...
August 25, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/28817605/all-trans-retinoic-acid-suppresses-malignant-characteristics-of-cd133-positive-thyroid-cancer-stem-cells-and-induces-apoptosis
#18
Dan Mei, Bin Lv, Bo Chen, Shan Xiao, Jie Jiang, Yan Xie, Ling Jiang
Recently, diagnoses of radioiodine-refractory differentiated thyroid cancer (RAI-R DTC) have become more common; prognosis is poor. It has been suggested that cancer stem cells account for radiotherapy resistance. By flow cytometry, different expression percents of CD133 and OCT4 in thyroid cancer cell lines were detected. By real-time quantitative PCR, different mRNA expression of CD133, OCT4, GLUT1, thyroglobulin (TG), thyroperoxidase (TPO) and sodium iodine symporter (NIS) was analyzed; the localization of CD133, OCT4, and NIS expression was examined using immunofluorescence confocal microscopy...
2017: PloS One
https://www.readbyqxmd.com/read/28765795/inpatient-versus-outpatient-anterior-cervical-discectomy-and-fusion-a-perioperative-complication-analysis-of-259-414-patients-from-the-healthcare-cost-and-utilization-project-databases
#19
Shearwood McClelland Iii, Peter G Passias, Thomas J Errico, R Shay Bess, Themistocles S Protopsaltis
BACKGROUND: Anterior cervical discectomy and fusion (ACDF) is one of the most common operations utilized to address pathology of the cervical spine. Few reports have attempted to compare complications associated with inpatient versus outpatient ACDF. METHODS: The Nationwide Inpatient Sample (NIS) from 2001-2012 and the State Ambulatory Services Database (SASD) for New Jersey (NJ) from 2003-2012 were used for analysis. Patients receiving ACDF (defined as anterior cervical fusion (ICD-0 code=81...
2017: International Journal of Spine Surgery
https://www.readbyqxmd.com/read/28730770/characteristics-and-outcomes-of-patients-with-multifocal-multicentric-and-unifocal-breast-cancer
#20
Lidija Djordjevic-Jovanovic, Aleksandar Karanikolic, Toplica Bojic, Ivan Pesic, Miodrag Djordjevic, Mirjana Marinkovic
PURPOSE: The clinical behavior and outcome of multifocal (MF) and multicentric (MC) breast tumors are not well characterized. The purpose of this study was to compare the prognosis of MF/MC tumors with unifocal (UF)tumors and its correlation with other pathological characteristics and patient outcomes. METHODS: Eighty-three patients with MC/MF breast cancer and 501 with UF breast cancer treated at the Surgical Clinic Nis were studied. We compared MC/MF and UF breast cancer patients with respect to demographics, tumor characteristics- adjuvant systemic therapy, local recurrence-free survival (LRFS) and overall survival (OS)...
May 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
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