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https://www.readbyqxmd.com/read/28431394/effect-of-salmonella-enterica-serovar-typhimurium-vnp20009-and-vnp20009-with-restored-chemotaxis-on-4t1-mouse-mammary-carcinoma-progression
#1
Sheryl L Coutermarsh-Ott, Katherine M Broadway, Birgit E Scharf, Irving C Allen
A variety of bacterial strains have been evaluated as bio-therapeutic and immunomodulatory agents to treat cancer. One such strain, Salmonella enterica serovar Typhimurium VNP20009, which is attenuated by a purine auxotrophic mutation and modified lipid A, is characterized in previous models as a safely administered, tumor colonizing agent. However, earlier work tended to use less aggressive cancer cell lines and immunocompromised animal models. Here, we investigated the safety and efficacy of VNP20009 in a highly malignant murine model of human breast cancer...
April 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28431200/the-utility-of-flow-cytometry-in-differentiating-nk-t-cell-lymphoma-from-indolent-and-reactive-nk-cell-proliferations
#2
Sanjay de Mel, Jenny Bei Li, Muhammad Bilal Abid, Tiffany P L Tang, Hui Ming Tay, Wen Chang Ting, Li Mei Poon, Tae Hoon Chung, Benjamin Mow, Allison Tso, Kiat Hoe Ong, Wee Joo Chng, Te Chih Liu
BACKGROUND: The WHO defines 3 categories of NK cell malignancies; extra nodal NK/T cell lymphoma (NKTCL), aggressive NK cell leukaemia, and the provisional entity chronic lymphoproliferative disorder of NK cells (CLPD-NK). Although the flow cytometric (FC) phenotype of CLPD-NK has been described, studies on FC phenotype of NKTCL are limited. To the best of our knowledge ours is the first study to compare the phenotype of NKTCL, CLPD-NK, reactive NK lymphocytosis (RNKL), and normal NK cells using eight colour (8C) FC...
April 21, 2017: Cytometry. Part B, Clinical Cytometry
https://www.readbyqxmd.com/read/28431190/higher-levels-of-submissive-behaviors-at-the-onset-of-the-pairing-process-of-rhesus-macaques-macaca-mulatta-are-associated-with-lower-risk-of-wounding-following-introduction
#3
Ori Pomerantz, Kate C Baker
Social housing of rhesus macaques (Macaca mulatta) is considered to be the cornerstone of behavioral management programs in biomedical facilities. However, it also involves the risk of socially inflicted trauma. The ability to avoid such trauma would contribute to the animals' well-being and alleviate staff's concerns, thus paving the path for more introductions. Here, we sought to address the conflict between the need to socially house rhesus macaques and the need to bring social wounding to a minimum by identifying behaviors expressed early in social introductions, that may serve as predictors of later wounding events...
April 21, 2017: American Journal of Primatology
https://www.readbyqxmd.com/read/28430867/emerging-evidence-for-the-role-of-differential-tumor-microenvironment-in-breast-cancer-racial-disparity-a-closer-look-at-the-surroundings
#4
Sachin Kumar Deshmukh, Sanjeev K Srivastava, Nikhil Tyagi, Aamir Ahmad, Ajay P Singh, Ahmed Al Ghadhban, Donna L Dyess, James E Carter, Kari Dugger, Seema Singh
Although increased awareness leading to early detection and prevention, as well as advancements in treatment strategies, have resulted in superior clinical outcomes, African American women with breast cancer continue to have greater mortality rates, compared to Caucasian American counterparts. Moreover, African American women are more likely to have breast cancer at a younger age and be diagnosed with aggressive tumor sub-types. Such racial disparities can be attributed to socioeconomic differences, but it is increasingly being recognized that these disparities may indeed be due to certain genetic and other non-genetic biological differences...
April 18, 2017: Carcinogenesis
https://www.readbyqxmd.com/read/28430664/identification-of-a-novel-pd-l1-positive-solid-tumor-transplantable-in-hla-a-0201-drb1-0101-transgenic-mice
#5
Laurie Rangan, Jeanne Galaine, Romain Boidot, Mohamad Hamieh, Magalie Dosset, Julie Francoual, Laurent Beziaud, Jean-René Pallandre, Elodie Lauret Marie Joseph, Afag Asgarova, Christophe Borg, Talal Al Saati, Yann Godet, Jean Baptiste Latouche, Séverine Valmary-Degano, Olivier Adotévi
HLA-A*0201/DRB1*0101 transgenic mice (A2/DR1 mice) have been developed to study the immunogenicity of tumor antigen-derived T cell epitopes. To extend the use and application of this mouse model in the field of antitumor immunotherapy, we described a tumor cell line generated from a naturally occurring tumor in A2/DR1 mouse named SARC-L1. Histological and genes signature analysis supported the sarcoma origin of this cell line. While SARC-L1 tumor cells lack HLA-DRB1*0101 expression, a very low expression of HLA-A*0201 molecules was found on these cells...
April 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28430642/immunocompetent-mouse-allograft-models-for-development-of-therapies-to-target-breast-cancer-metastasis
#6
Yuan Yang, Howard H Yang, Ying Hu, Peter H Watson, Huaitian Liu, Thomas R Geiger, Miriam R Anver, Diana C Haines, Philip Martin, Jeffrey E Green, Maxwell P Lee, Kent W Hunter, Lalage M Wakefield
Effective drug development to combat metastatic disease in breast cancer would be aided by the availability of well-characterized preclinical animal models that (a) metastasize with high efficiency, (b) metastasize in a reasonable time-frame, (c) have an intact immune system, and (d) capture some of the heterogeneity of the human disease. To address these issues, we have assembled a panel of twelve mouse mammary cancer cell lines that can metastasize efficiently on implantation into syngeneic immunocompetent hosts...
February 25, 2017: Oncotarget
https://www.readbyqxmd.com/read/28430604/signal-transducing-adaptor-protein-2-promotes-generation-of-functional-long-term-memory-cd8-t-cells-by-preventing-terminal-effector-differentiation
#7
Daisuke Muraoka, Naohiro Seo, Tae Hayashi, Chisaki Hyuga-Amaike, Kana Okamori, Isao Tawara, Naozumi Harada, Hiroshi Shiku
Long-surviving memory CD8+ T cells generated by stimulation with appropriate tumor-associated antigens are the most aggressive and persistent tumoricidal effectors. In this event of memory CD8+ T cell development, the signal transducer and activator of transcription (STAT) proteins function as the crucial intracellular signaling molecules, but the regulatory mechanism of STATs in CD8+ T cells is not fully understood. In this study, we report for the first time, by using murine vaccination models, that signal-transducing adaptor protein-2 (STAP2) maintains the cytotoxicity of long-lived memory CD8+ T cells by controlling a STAT3/suppressor of cytokine signaling 3 (SOCS3) cascade...
February 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28430585/foxd3-regulates-anaplastic-thyroid-cancer-progression
#8
Huabin Yin, Tong Meng, Lei Zhou, Feixing Zhao, Xiufang Li, Yundong Li, Mengjun Hu, Haiyan Chen, Dianwen Song
Anaplastic thyroid cancer (ATC) is an aggressive malignancy with poor prognosis. It was reported that Forkhead box D3 (FOXD3) transcription factor is associated with several cancers. We investigated its antitumorigenic role of ATC in this study. The ATC cell lines SW1736 and K18 exhibited lower FOXD3 expression than the Nthy-ori-3-1 normal thyroid cell line. FOXD3 downregulation in ATC cell lines promoted invasiveness and epithelial-to-mesenchymal transition (EMT) and decreased cellular apoptosis. FOXD3 silencing also enhanced p-ERK levels in the ATC cell lines, suggesting it negatively regulated MAPK/ERK signaling...
April 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28430350/1st-evidence-based-italian-consensus-conference-on-cytoreductive-surgery-and-hyperthermic-intraperitoneal-chemotherapy-for-peritoneal-carcinosis-from-ovarian-cancer
#9
Davide Cavaliere, Roberto Cirocchi, Federico Coccolini, Anna Fagotti, Massimiliano Fambrini, Orietta Federici, Domenica Lorusso, Marco Vaira, Marco Ceresoli, Paolo Delrio, Alfredo Garofalo, Sandro Pignata, Paolo Scollo, Vito Trojano, Andrea Amadori, Luca Ansaloni, Giuseppe Cariti, Franco De Cian, Pierandrea De Iaco, Michele De Simone, Marcello Deraco, Annibale Donini, Giammaria Fiorentini, Luigi Frigerio, Stefano Greggi, Antonio Macrì, Enrico Maria Pasqual, Franco Roviello, Paolo Sammartino, Cinzia Sassaroli, Giovanni Scambia, Carlo Staudacher, Patrizia Vici, Enrico Vizza, Mario Valle
Ovarian cancer (OC) remains relatively rare, although it is among the top 4 causes of cancer death for women younger than 50. The aggressive nature of the disease and its often late diagnosis with peritoneal involvement have an impact on prognosis. The current scientific literature presents ambiguous or uncertain indications for management of peritoneal carcinosis (PC) from OC, both owing to the lack of sufficient scientific data and their heterogeneity or lack of consistency. Therefore, the Italian Society of Surgical Oncology (SICO), the Italian Society of Obstetrics and Gynaecology, the Italian Association of Hospital Obstetricians and Gynaecologists, and the Italian Association of Medical Oncology conducted a multidisciplinary consensus conference (CC) on management of advanced OC presenting with PC during the SICO annual meeting in Naples, Italy, on September 10-11, 2015...
April 20, 2017: Tumori
https://www.readbyqxmd.com/read/28430295/multiple-cerebral-fusiform-aneurysms-involving-the-posterior-and-anterior-circulation-including-the-anterior-cerebral-artery-a-case-report
#10
Sumit Das, Tibor Valyi-Nagy
<i>Multiple fusiform aneurysms occurring in a single patient are very uncommon. Fusiform aneurysms affecting the anterior circulation are extremely rare and reported cases involve the middle cerebral artery and internal carotid artery. We report here a case of a 55-year-old African American male who had a history of multiple strokes and who was found unresponsive prior to his latest hospital admission. Neuroimaging was remarkable for multiple fusiform aneurysms involving segments of the anterior, middle and posterior cerebral arteries as well as subarachnoid and intraparenchymal hemorrhage...
2017: Folia Neuropathologica
https://www.readbyqxmd.com/read/28430288/mesenchymal-proangiogenic-factor-ykl-40-related-to-glioblastomas-and-its-relationship-with-the-subventricular-zone
#11
Kelvin M Pińa Batista, Sayoa Alvarez de Eulate-Beramendi, Kenia Y Álvarez Reyes de Pińa, Pedro Reimunde Figueira, Adan Fernandez Canal, Josué M Avecillas Chasin, Ángela Meilan, Rodrigo Ugalde, Ivan Fernandez Vega
<i>Glioblastoma is the most common primary brain tumor. Despite multimodality therapy with aggressive microsurgical resection and adjuvant chemotherapy and radiotherapy, the median survival is below 15 months. Glioblastomas are heterogeneous tumors with high resistance to most chemotherapeutic drugs. According to reliable evidence, YKL-40, one of the best investigated chitinase-like protein, may facilitate invasion, migration and angiogenesis, and could be also responsible for temozolomide resistance in glioblastoma, thus conferring a dismal prognosis...
2017: Folia Neuropathologica
https://www.readbyqxmd.com/read/28430130/timp1-promotes-cell-survival-by-activating-the-pdk1-signaling-pathway-in-melanoma
#12
Mariana Toricelli, Fabiana H M Melo, Aline Hunger, Daniela Zanatta, Bryan E Strauss, Miriam G Jasiulionis
High TIMP1 expression is associated with poor prognosis in melanoma, where it can bind to CD63 and β1 integrin, inducing PI3-kinase pathway and cell survival. Phosphatidylinositol (3,4,5)-trisphosphate (PIP3), generated under phosphatidylinositol-3-kinase (PI3K) activation, enables the recruitment and activation of protein kinase B (PKB/AKT) and phosphoinositide-dependent kinase 1 (PDK1) at the membrane, resulting in the phosphorylation of a host of other proteins. Using a melanoma progression model, we evaluated the impact of Timp1 and AKT silencing, as well as PI3K, PDK1, and protein kinase C (PKC) inhibitors on aggressiveness characteristics...
April 21, 2017: Cancers
https://www.readbyqxmd.com/read/28430045/laparoscopic-sleeve-gastrectomy-changes-in-the-last-decade-differences-in-morbidity-and-weight-loss
#13
Andrea Balla, Silvia Quaresima, Frida Leonetti, Emanuela Paone, Marco Brunori, Teresa Messina, Ardit Seitaj, Alessandro M Paganini
PURPOSE: Aim is to report the learning curve and standardization process of Laparoscopic Sleeve Gastrectomy (LSG), describing the evolution in surgical technique and patient management in the authors' experiences. METHODS: One hundred twenty-seven patients were divided in three Groups (A, B, and C), based on bougie size and technical details, and included 36, 46, and 45 patients, respectively. RESULTS: Mean operative time in Groups A, B, and C was 201...
April 21, 2017: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/28429764/fabrication-characterization-and-biological-evaluation-of-anti-her2-indocyanine-green-doxorubicin-encapsulated-peg-b-plga-copolymeric-nanoparticles-for-targeted-photochemotherapy-of-breast-cancer-cells
#14
Yu-Hsiang Lee, Da-Sheng Chang
In this study, we aimed to develop anti-human epidermal growth factor receptor 2 (HER2) indocyanine green (ICG)-doxorubicin (DOX)-encapsulated polyethylene glycol-poly(lactic-co-glycolic acid) diblock copolymeric nanoparticles (HIDPPNPs) to explore the co-administration of phototherapy and chemotherapy for HER2-overexpressing breast cancer, a highly aggressive and medicine-resistant breast carcinoma. The HIDPPNPs were fabricated using a solvent evaporation technique followed by carbodiimide-mediated antibody conjugation on the nanoparticle surface...
April 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28429679/mycobacterium-avium-complex-disease
#15
Charles L Daley
Despite the ubiqitous nature of Mycobacterium avium complex (MAC) organisms in the environment, relatively few of those who are infected develop disease. Thus, some degree of susceptibility due to either underlying lung disease or immunosuppression is required. The frequency of pulmonary MAC disease is increasing in many areas, and the exact reasons are unknown. Isolation of MAC from a respiratory specimen does not necessarily mean that treatment is required, as the decision to treatment requires the synthesis of clinical, radiographic, and microbiologic information as well as a weighing of the risks and benefits for the individual patient...
April 2017: Microbiology Spectrum
https://www.readbyqxmd.com/read/28429647/malignant-rhabdoid-tumor-of-soft-tissue
#16
Julie Guilmette, Caroline Laverdière, Denis Soulières, Natasha Patey, Geneviève Soucy, Dominique Trudel, Dorothée Bouron-Dal Soglio
Introduction Malignant rhabdoid tumor (MRT) is defined as a high-grade sarcoma derived from an uncertain cell of origin. Its diagnosis is associated with poor prognosis and patient's life expectancy is greatly reduced. Material and method Here, we describe a unique case of 9-month-old boy who presented with a large MRT arising from the soft tissue of the neck. Following intensive multimodal treatment, the patient benefited from a 25 years' remission until the discovery of multiple liver metastases. Conclusion MRT of soft tissue needs to be distinguished from other soft tissue neoplasms, as MRT is highly aggressive and is usually associated with a poor outcome...
January 1, 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/28429629/developing-indicators-of-appropriate-and-inappropriate-end-of-life-care-in-people-with-alzheimer-s-disease-cancer-or-chronic-obstructive-pulmonary-disease-for-population-level-administrative-databases-a-rand-ucla-appropriateness-study
#17
Robrecht De Schreye, Dirk Houttekier, Luc Deliens, Joachim Cohen
BACKGROUND: A substantial amount of aggressive life-prolonging treatments in the final stages of life has been reported for people with progressive life-shortening conditions. Monitoring appropriate and inappropriate end-of-life care is an important public health challenge and requires validated quality indicators. AIM: To develop indicators of appropriate and inappropriate end-of-life care for people with cancer, chronic obstructive pulmonary disease or Alzheimer's disease, measurable with population-level administrative data...
April 1, 2017: Palliative Medicine
https://www.readbyqxmd.com/read/28429540/silencing-of-astrocyte-elevated-gene-1-inhibits-proliferation-and-migration-and-induces-apoptosis-in-melanoma
#18
Yue Zhang, Ge Peng, Ying Wang, Lixia Cui, Wenqing Wu, Luan Wang, Chengyu Liu, Xiuping Han
Melanoma is an aggressive skin malignancy with a high mortality. Astrocyte elevated gene-1 (AEG-1), a downstream target of ras and c-myc, has been implicated in the development of multiple tumors, yet its role in melanoma remains unclear. In the present study, the role of AEG-1 in melanoma was explored through AEG-1 silencing. Our results showed that silencing of AEG-1 inhibited proliferation of melanoma cells and induced cell cycle arrest, accompanied by reduced levels of cyclinA, cyclinB, cyclinD1, cyclinE and cyclin dependent kinase 2...
April 21, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/28429491/bringing-the-human-pancreas-into-focus-new-paradigms-for-the-understanding-of-type-1-diabetes
#19
REVIEW
N G Morgan
Type 1 diabetes affects increasingly large numbers of people globally (including at least half a million children under the age of 14 years) and it remains an illness with life-long and often devastating consequences. It is surprising, therefore, that the underlying aetiology of Type 1 diabetes remains poorly understood. This is largely because the cellular and molecular processes leading to the loss of β cells in the pancreas have rarely been studied at, or soon after, the onset of disease. Where such studies have been undertaken, a number of surprises have emerged which serve to challenge conventional wisdom...
April 20, 2017: Diabetic Medicine: a Journal of the British Diabetic Association
https://www.readbyqxmd.com/read/28429416/modulation-of-heterotypic-and-homotypic-cell-cell-interactions-via-zwitterionic-lipid-masks
#20
Matthew Park, Wongu Youn, Doyeon Kim, Eun Hyea Ko, Beom Jin Kim, Sung Min Kang, Kyungtae Kang, Insung S Choi
Since the pioneering work by Whitesides, innumerable platforms that aim to spatio-selectively seed cells and control the degree of cell-cell interactions in vitro have been developed. These methods, however, have generally been technically and methodologically complex, or demanded stringent materials and conditions. In this work, we introduce zwitterionic lipids as patternable, cell-repellant masks for selectively seeding cells. The lipid masks are easily removed with a routine washing step under physiological conditions (37 °C, pH 7...
April 21, 2017: Advanced Healthcare Materials
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