Search results for "Metas"
showing 10 items of 1693 documents
The Epithelial Mesenchymal Transition Process in Wilms Tumor
2011
Background Until now, only a few mouse-transplanted human tumors or experimental Wilms tumor (WT) cell lines have been described. The aim of this study was to show the biological behavior, including histology, immunohistochemistry (IHC), and molecular biology, of a WT including the original tumor and metastasis transferred into nude mice and followed for successive generations in xenografts. Methods A WT metastasis was xenotransplanted into nude mice and the mice was monitored for 7 passages over a period of 29 months; the original neoplasm was comparatively studied. The morphology was evaluated by optical and electron microscopy. The protein expression was analyzed by immunohistochemistry …
Potential Anti-Metastatic Role of the Novel miR-CT3 in Tumor Angiogenesis and Osteosarcoma Invasion
2022
Osteosarcoma (OS) is the most common primary bone tumor mainly occurring in young adults and derived from primitive bone-forming mesenchyme. OS develops in an intricate tumor microenvironment (TME) where cellular function regulated by microRNAs (miRNAs) may affect communication between OS cells and the surrounding TME. Therefore, miRNAs are considered potential therapeutic targets in cancer and one of the goals of research is to accurately define a specific signature of a miRNAs, which could reflect the phenotype of a particular tumor, such as OS. Through NGS approach, we previously found a specific molecular profile of miRNAs in OS and discovered 8 novel miRNAs. Among these, we deepen our …
Key nodes of a microRNA network associated with the integrated mesenchymal subtype of high-grade serous ovarian cancer
2015
Metastasis is the main cause of cancer mortality. One of the initiating events of cancer metastasis of epithelial tumors is epithelial-to-mesenchymal transition (EMT), during which cells dedifferentiate from a relatively rigid cell structure/morphology to a flexible and changeable structure/morphology often associated with mesenchymal cells. The presence of EMT in human epithelial tumors is reflected by the increased expression of genes and levels of proteins that are preferentially present in mesenchymal cells. The combined presence of these genes forms the basis of mesenchymal gene signatures, which are the foundation for classifying a mesenchymal subtype of tumors. Indeed, tumor classifi…
Multicenter study of the eValuation of Eribulin (E) use in Sicily in metastatic breast cancer (MBC): A Prospective RegistrY (VESPRY trial)
2015
e12565 Background: Eribulin Mesylate is a non taxane microtubule dynamics inhibitor, approved for heavily-pretreated MBC patients (pts). Methods: This is a multicenter, prospective, single arm study for E-treatment of third line in pretreated MBC pts, conducted in 14 oncology centers in Sicily. All pts had received two previous chemotherapy regimens for MBC. Pts received E at 1.23 mg/m2 on days 1,8 every 3 weeks until progression. Primary Endpoints: overall response rate (ORR) according to the site of metastases and safety. Secondary objectives: Progression-free survival (PFS) and ORR according to different subtypes. PFS curve was estimated using the Kaplan-Meier method. Multivariable logi…
Eribulin Mesylate for the Treatment of Metastatic Hormone-refractory and Triple-negative Breast Cancer: A Multi-institutional Real-world Report on Ef…
2021
Objective Eribulin mesylate (EM) is a fully synthetic macrocyclic ketone analogue of the marine natural product halichondrin. EM has been reported to be active in metastatic breast cancer. In this paper, we report efficacy and safety of data of EM in a retrospective, real-world series of patients with poor prognosis, hormone-refractory, or triple-negative metastatic breast cancer. Materials and methods The analysis was carried out at 4 interrelated oncology centers. EM was delivered at the dose of 1.4 mg/m2 in 100 mL of normal saline over 2 to 5 minutes on days 1 and 8 every 21 days. EM was continued until disease progression or unacceptable toxicity. Side effects were reported every cycle …
A highly dynamic hot hydrothermal system in the subduction environment: Geochemistry and geochronology of jadeitite and associated rocks of the Sierr…
2021
A U-Pb zircon date of ~113 Ma revealed that a variety of jadeitites and related omphacitite, chloritite and albite-rich rocks from the subduction-related Sierra del Convento block-in-serpentinite-matrix mélange (eastern Cuba) formed nearly synchronously with MORB metabasite-derived anatectic trondhjemitic liquids at high-temperature and pressure in a hot subduction environment. Field, petrologic and geochemical data indicate hydrothermal/metasomatic processes triggered by juvenile fluids likely evolved from the crystallizing hydrous trondhjemitic melts. These fluids, variably mixed with sediment-derived fluids and channelized along fractures in the supra-slab mantle, precipitated relatively…
AGO Algorithms for the Treatment of Breast Cancer: Update 2021
2021
Geburtshilfe und Frauenheilkunde 81(10), 1101-1111 (2021). doi:10.1055/a-1519-7089
Breakthrough Pain (BTP) in Opioid-Tolerant Cancer Patients: A Pan-European Open-Label Multicentre Study with Fentanyl Buccal Tablet (FBT)
2012
ABSTRACT BTP, a transitory exacerbation of pain that occurs on a background of otherwise controlled persistent pain, is a common problem in cancer patients. FBT is indicated for the treatment of BTP in adults with cancer already receiving maintenance opioid therapy for chronic cancer pain and should be titrated to an effective dose that provides adequate analgesia and minimises undesirable events. In this study, patients entered a screening period and were randomized during an open-label titration period to a starting FBT dose of 100 µg (group A) or 200 µg (group B) to identify the FBT effective dose and then treated in an open-label period (for 8 BTP episodes). Patients' inclusion followed…
Resonances in the electron impact excitation of metastable states of mercury
1984
Metastable excitation of mercury by electron impact is studied at energies up to the first ionisation potential using an energy selected electron beam with an energy spread of 50 meV FWHM. A great number of resonances is observed in the excitation function. Agreement is good on the whole with a recent relativisticR-matrix calculation and with a former analysis of resonances in the elastic cross section.
A systematic review on external ear melanoma
2014
Summary Background External ear melanoma accounts for only 1% of all cutaneous melanomas, and data on its optimal management and prognosis are limited. Aim We aim to review the literature on external ear melanoma to guide surgeons in the treatment of this uncommon and peculiar pathology. Materials and methods A systematic review of English language studies on ear melanoma published from 1993 to 2013 was performed using the PubMed electronic database. Data on epidemiology, oncological treatment (tumor resection and regional lymph nodes management), and reconstruction were extrapolated from selected papers. Results The total number of patients was 858 (30 studies). The helix was the most comm…