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Solid tumor research

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https://www.readbyqxmd.com/read/28321814/immunotherapy-in-nsclc-a-promising-and-revolutionary-weapon
#1
Christian Rolfo, Christian Caglevic, Mariacarmela Santarpia, Antonio Araujo, Elisa Giovannetti, Carolina Diaz Gallardo, Patrick Pauwels, Mauricio Mahave
Lung cancer is the leader malignancy worldwide accounting 1.5 millions of deaths every year. In the United States the 5 year-overall survival is less than 20% for all the newly diagnosed patients. Cisplatin-based cytotoxic chemotherapy for unresectable or metastatic NSCLC patients in the first line of treatment, and docetaxel in the second line, have achieved positive results but with limited benefit in overall survival. Targeted therapies for EGFR and ALK mutant patients have showed better results when compared with chemotherapy, nevertheless most of patients will fail and need to be treated with chemotherapy if they still have a good performance status...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28317088/phase-i-trial-of-the-oral-smoothened-inhibitor-sonidegib-in-combination-with-paclitaxel-in-patients-with-advanced-solid-tumors
#2
A Stathis, D Hess, R von Moos, K Homicsko, G Griguolo, M Joerger, M Mark, C J Ackermann, S Allegrini, C V Catapano, A Xyrafas, M Enoiu, S Berardi, P Gargiulo, C Sessa
Purpose To establish a recommended phase II dose (RP2D) for the oral smoothened inhibitor sonidegib in combination with paclitaxel; secondary objectives include evaluation of safety, tolerability, markers of Hedgehog (Hh) signaling and preliminary antitumor activity. Methods Patients with advanced solid tumors were enrolled in cohorts of escalating sonidegib dose levels (400mg, 600mg and 800mg orally, once daily on days 1-28) in combination with paclitaxel 80 mg/m(2) on days 1, 8 and 15 in 4-weekly cycles. Dose-limiting toxicities (DLTs) were assessed using CTCAE v4...
March 20, 2017: Investigational New Drugs
https://www.readbyqxmd.com/read/28303311/-immunotherapy-of-cancer-with-checkpoint-inhibitors-not-only-in-malignant-melanoma
#3
A Neubauer
The newest weapon in cancer therapy is checkpoint inhibition, which is the result of basic immunology research. The success of this therapy is based on the fact that upon light microscopy, many solid tumors harbor lymphocytic cells infiltrating the tumor (TILs), and in many solid tumors, the presence of these TILs are prognostic. Ipilimumab was the first monoclonal antibody developed against a target present on T cells after becoming activated, CTLA-4. In malignant melanoma, ipilimumab showed its beneficial effect as compared to a placebo peptide...
March 16, 2017: Der Internist
https://www.readbyqxmd.com/read/28299665/roles-of-runx-in-solid-tumors
#4
Linda Shyue Huey Chuang, Kosei Ito, Yoshiaki Ito
All RUNX genes have been implicated in the development of solid tumors, but the role each RUNX gene plays in the different tumor types is complicated by multiple interactions with major signaling pathways and tumor heterogeneity. Moreover, for a given tissue type, the specific role of each RUNX protein is distinct at different stages of differentiation. A regulatory function for RUNX in tissue stem cells points sharply to a causal effect in tumorigenesis. Understanding how RUNX dysregulation in cancer impinges on normal biological processes is important for identifying the molecular mechanisms that lead to malignancy...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28297303/experimental-evaluation-of-a-gpu-based-monte-carlo-dose-calculation-algorithm-in-the-monaco-treatment-planning-system
#5
Moti R Paudel, Anthony Kim, Arman Sarfehnia, Sayed B Ahmad, David J Beachey, Arjun Sahgal, Brian M Keller
A new GPU-based Monte Carlo dose calculation algorithm (GPUMCD), developed by the vendor Elekta for the Monaco treatment planning system (TPS), is capable of modeling dose for both a standard linear accelerator and an Elekta MRI linear accelerator. We have experimentally evaluated this algorithm for a standard Elekta Agility linear accelerator. A beam model was developed in the Monaco TPS (research version 5.09.06) using the commissioned beam data for a 6 MV Agility linac. A heterogeneous phantom representing several scenarios - tumor-in-lung, lung, and bone-in-tissue - was designed and built...
November 2016: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28293120/glucocorticoid-receptor-expression-in-20-solid-tumor-types-using-immunohistochemistry-assay
#6
Thaddeus S Block, Tiffany I Murphy, Pamela N Munster, Dat P Nguyen, Frank J Lynch
BACKGROUND: Glucocorticoid receptor (GR) activity plays a role in many aspects of human physiology and may play a crucial role in chemotherapy resistance in a wide variety of solid tumors. A novel immunohistochemistry (IHC) based assay has been previously developed and validated in order to assess GR immunoreactivity in triple-negative breast cancer. The current study investigates the standardized use of this validated assay to assess GR expression in a broad range of solid tumor malignancies...
2017: Cancer Management and Research
https://www.readbyqxmd.com/read/28289330/the-heterogeneity-of-cancer-stem-like-cells-at-the-invasive-front
#7
Go J Yoshida
Cancer stem-like cells exhibit the multi-functional roles to survive and persist for a long period in the minimal residual disease after the conventional anti-cancer treatments. Cancer stem-like cells of solid malignant tumors which highly express CD44v8-10, the variant isoform of CD44 generated by alternative splicing, has a resistance to redox stress by the robust production of glutathione mediated by ESRP1-CD44v-xCT (cystine/glutamate antiporter) axis. It has been reported that CD44v and c-Myc tend to show the inversed expression pattern at the invasive front of the aggressive tumors...
2017: Cancer Cell International
https://www.readbyqxmd.com/read/28286387/immunohistochemistry-of-five-molecular-markers-for-typing-and-management-of-ameloblastomas-a-retrospective-analysis-of-40-cases
#8
Thasvir Singh, Arun Chandu, John Clement, Christopher Angel
PURPOSE: The aims of this study are to elucidate if molecular markers can be used to differentiate between the two main types of ameloblastoma (unicystic and solid/multicystic), and to determine whether a biologically 'less-aggressive' subtype exists. METHODS: A retrospective analysis of 33 solid/multicystic ameloblastomas and six unicystic ameloblastomas was completed using immunohistochemistry for five molecular markers: P16, P53, MMP-9, Survivin, and Ki-67. Tumors were graded as either negative or positive (mild, moderate, strong), and the results were related to both ameloblastoma subtypes and outcomes following treatment...
March 2017: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/28285368/risk-of-hypertension-with-ramucirumab-based-therapy-in-solid-tumors-data-from-a-literature-based-meta-analysis
#9
REVIEW
Giandomenico Roviello, Chiara Pacifico, Paola Corona, Daniele Generali
Ramucirumab is a monoclonal antibody against Vascular Endothelial Growth Factor Receptor-2 (VEGFR-2) approved for the treatment of several solid tumours. As shown in recent trials results, new-onset hypertension is one of the most frequent adverse events associated with ramucirumab therapy. Recent studies looked at the quantification of the risk of hypertension in patients receiving other anti-angiogenesis medications. We conducted a meta-analysis of randomized clinical trials with the aim to investigate the incidence and quantify the risk of new-onset hypertension of any grade in patients treated with ramucirumab...
March 11, 2017: Investigational New Drugs
https://www.readbyqxmd.com/read/28261443/how-a-clinical-trial-unit-can-improve-independent-clinical-research-in-rare-tumors-the-italian-sarcoma-group-experience
#10
Emanuela Marchesi, Celeste Cagnazzo, Irene Quattrini, Martina Piccinni Leopardi, Chiara Villa, Giovanni Grignani, Lorenzo D'Ambrosio, Silvia Stacchiotti, Paolo Giovanni Casali, Piero Picci
BACKGROUND: The Italian Sarcoma Group (ISG) is a nonprofit group of professionals established in 1997 aimed to improve the quality of care and promote the independent research in sarcomas. The increased regulatory requirements, the chance to increase the number of trials with other cooperative groups and an interest from pharmaceutical companies in supporting independent research, generated the need of an internal service for research management. METHODS AND RESULTS: In 2010, ISG implemented in its organization a Clinical Trial Unit (CTU)...
2017: Clinical Sarcoma Research
https://www.readbyqxmd.com/read/28260192/polyphyllin-d-a-steroidal-saponin-in-paris-polyphylla-induces-apoptosis-and-necroptosis-cell-death-of-neuroblastoma-cells
#11
Shunsuke Watanabe, Tatuya Suzuki, Fujio Hara, Toshihiro Yasui, Naoko Uga, Atuki Naoe
PURPOSE: Neuroblastoma is a refractory pediatric malignant solid tumor. The previous studies demonstrated that Polyphyllin D, the main constituent of Paris polyphylla, a traditional Chinese medicine, exerts an anti-tumor effect on many tumors. However, its effects against neuroblastomas are unclear. METHODS: We examined the anti-tumor effect of polyphyllin D in human neuroblastoma using IMR-32 and LA-N-2 cells, which exhibit MYCN gene amplification, and NB-69 cells, which do not exhibit MYCN gene amplification...
March 4, 2017: Pediatric Surgery International
https://www.readbyqxmd.com/read/28247762/high-quality-multicellular-tumor-spheroid-induction-platform-based-on-anisotropic-magnetic-hydrogel
#12
Shijia Tang, Ke Hu, Jianfei Sun, Yang Li, Zhaobin Guo, Mei Liu, Qi Liu, FeiMin Zhang, Ning Gu
In recent years, multicellular spheroid (MCSs) culture has been extensively studied both in fundamental research and application fields since it inherits much more characteristics from in vivo solid tumor than conventional 2D cell culture. However anti-cell adhesive MCS culture systems such as hanging drop allow certain cell lines only form loose, irregular aggregates rather than MCS with physiological barriers and pathophysiological gradients, which failed to mimic in vivo solid tumor in these aspects. To address this issue, we improved our previously established anisotropic magnetic hydrogel platform, enabling it to generate multi-cellular spheroids with higher efficiency...
March 1, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28237280/multiparametric-magnetic-resonance-imaging-of-solid-renal-tumors-a-practical-algorithm
#13
Francois Cornelis, Nicolas Grenier
Although preoperative classification of solid renal tumors was performed by percutaneous biopsy until now, research teams have demonstrated the potential interest of imaging to characterize noninvasively different renal tumor subtypes, in particular, with multiparametric magnetic resonance (MR) imaging. By combining all the imaging MR features successively reported in the literature and following a practical algorithm based on a step-by-step reading of the MR images, readers are now able to identify several imaging profiles, which appeared specific of each renal tumor subtypes...
February 2017: Seminars in Ultrasound, CT, and MR
https://www.readbyqxmd.com/read/28216622/effects-of-gene-polymorphisms-in-the-endoplasmic-reticulum-stress-pathway-on-clinical-outcomes-of-chemoradiotherapy-in-chinese-patients-with-nasopharyngeal-carcinoma
#14
Xiao-Bin Guo, Wan-le Ma, Li-Juan Liu, Yu-Ling Huang, Jing Wang, Li-Hua Huang, Xiang-Dong Peng, Ji-Ye Yin, Jin-Gao Li, Shao-Jun Chen, Guo-Ping Yang, Hui Wang, Cheng-Xian Guo
There is considerable inter-individual variabil¬ity in chemoradiotherapy responses in nasopharyngeal carcinoma (NPC) patients receiv¬ing the same or similar treatment protocols. In this study we evaluated the association between the gene polymorphisms in endoplasmic reticulum (ER) stress pathway and chemoradiation responses in Chinese NPC patients. A total of 150 patients with histopathologically conformed NPC and treated with concurrent chemoradiotherapy were enrolled. Genotypes in ER stress pathway genes, including VCP (valosin-containing protein) rs2074549, HSP90B1 rs17034943, CANX (calnexin) rs7566, HSPA5 [heat shock protein family A (Hsp70) member 5] rs430397, CALCR (calcitonin receptor) rs2528521, and XBP1 (X-box binding protein 1) rs2269577 were analyzed by Sequenom MassARRAY system...
February 20, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/28212290/defining-clinical-response-criteria-and-early-response-criteria-for-precision-oncology-current-state-of-the-art-and-future-perspectives
#15
Vivek Subbiah, Hubert H Chuang, Dhiraj Gambhire, Kalevi Kairemo
In this era of precision oncology, there has been an exponential growth in the armamentarium of genomically targeted therapies and immunotherapies. Evaluating early responses to precision therapy is essential for "go" versus "no go" decisions for these molecularly targeted drugs and agents that arm the immune system. Many different response assessment criteria exist for use in solid tumors and lymphomas. We reviewed the literature using the Medline/PubMed database for keywords "response assessment" and various known response assessment criteria published up to 2016...
February 15, 2017: Diagnostics
https://www.readbyqxmd.com/read/28209559/irreversible-electroporation-for-the-ablation-of-renal-cell-carcinoma-a-prospective-human-in-vivo-study-protocol-ideal-phase-2b
#16
Mara Buijs, Krijn P van Lienden, Peter Gk Wagstaff, Matthijs Jv Scheltema, Daniel M de Bruin, Patricia J Zondervan, Otto M van Delden, Ton G van Leeuwen, Jean Jmch de la Rosette, M Pilar Laguna
BACKGROUND: Irreversible electroporation (IRE) is an emerging technique delivering electrical pulses to ablate tissue, with the theoretical advantage to overcome the main shortcomings of conventional thermal ablation. Recent short-term research showed that IRE for the ablation of renal masses is a safe and feasible treatment option. In an ablate and resect design, histopathological analysis 4 weeks after radical nephrectomy demonstrated that IRE-targeted renal tumors were completely covered by ablation zone...
February 16, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/28203344/emerging-role-of-checkpoint-blockade-therapy-in-lymphoma
#17
REVIEW
Natalie Galanina, Justin Kline, Michael R Bishop
Following the successful application of immune checkpoint blockade therapy (CBT) in refractory solid tumors, it has recently gained momentum as a promising modality in the treatment of relapsed lymphoma. This significant therapeutic advance stems from decades of research that elucidated the role of immune regulation pathways and the mechanisms by which tumors can engage these critical pathways to escape immune detection. To date, two main pathways, the cytotoxic T-lymphocyte-associated protein 4 (CTLA-4) and programmed death 1 (PD-1), have emerged as key targets of CBT demonstrating unprecedented activity particularly in heavily pretreated relapsed/refractory Hodgkin lymphoma and some forms of non-Hodgkin disease...
February 2017: Therapeutic Advances in Hematology
https://www.readbyqxmd.com/read/28203075/co-delivery-of-paclitaxel-and-tos-cisplatin-via-tat-targeted-solid-lipid-nanoparticles-with-synergistic-antitumor-activity-against-cervical-cancer
#18
Bo Liu, Li Han, Junyan Liu, Shumei Han, Zhen Chen, Lixi Jiang
BACKGROUND: Cervical cancer is a major world health problem for women. Currently, cancer research focuses on improving therapy for cervical cancer using various treatment options such as co-delivery of chemotherapeutic agents by nanocarriers. PURPOSE: The aim of this study was to develop trans-activating transcriptional activator (TAT)-modified solid lipid nanoparticles (SLNs) for co-delivery of paclitaxel (PTX) and α-tocopherol succinate-cisplatin prodrug (TOS-CDDP) (TAT PTX/TOS-CDDP SLNs) in order to achieve synergistic antitumor activity against cervical cancer...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28199751/impact-of-polymorphisms-in-angiogenesis-related-genes-on-clinical-outcomes-of-radiotherapy-in-patients-with-nasopharyngeal-carcinoma
#19
Wan-Le Ma, Rong Liu, Li-Hua Huang, Chan Zou, Jie Huang, Jing Wang, Shao-Jun Chen, Xiang-Guang Meng, Jing-Ke Yang, Han Li, Guo-Ping Yang, Cheng-Xian Guo
PURPOSE: To assess the relationship between gene polymorphism in angiogenesis-related genes and radiation responses in nasopharyngeal carcinoma (NPC) patients. METHODS: The genotypes of 180 NPC patients were analyzed by Sequenom MassARRAY. The Response Evaluation Criteria in Solid Tumors were used for assessing efficacies. And The criteria of Radiation Therapy Oncology Group or European Organization for Research & Treatment of Cancer were utilized for evaluating acute toxic reactions in response to radiation...
February 15, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/28190710/neutrophil-to-lymphocyte-ratio-predicts-disease-progression-following-intra-arterial-therapy-of-hepatocellular-carcinoma
#20
Matthew D Taussig, Mary Ellen Irene Koran, Samdeep K Mouli, Asma Ahmad, Sunil Geevarghese, Jennifer C Baker, Andrew J Lipnik, Fil Banovac, Daniel B Brown
BACKGROUND: Prospectively predicting response to intra-arterial therapy for hepatocellular carcinoma (HCC) is challenging. Neutrophil/lymphocyte ratio (NLR) is a serum biomarker that is associated with survival for multiple malignancies. It was hypothesized that increased NLR would be associated with early disease progression after intra-arterial therapy of HCC. METHODS: The outcomes of 86 treatment-naïve patients who had chemoembolization or radioembolization of HCC between July 2013-July 2014 were reviewed...
February 9, 2017: HPB: the Official Journal of the International Hepato Pancreato Biliary Association
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