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Pàgina 1 des de 2049 resultats
Evaluation of radioiodinated protein conjugates and their potential metabolites containing lysine-urea-glutamate (LuG), PEG and closo-decaborate(2-) as models for targeting astatine-211 to metastatic prostate cancer.
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INTRODUCTION
The use of lysine-urea-glutamate (LuG) for targeting the PSMA antigen on prostate cancer (PCa) is a promising method for delivering the alpha particle-emitting radionuclide astatine-211 (211At) to metastatic PCa. High kidney localization has been a problemDesign, synthesis, and characterization of α, β-unsaturated carboxylic acid, and its urea based derivatives that explores novel epigenetic modulators in human non-small cell lung cancer A549 cell line.
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Histone deacetylase inhibitors (HDACi) are a small molecule chemotherapeutics that target the chromatin remodeling through the regulation of histone and non-histone proteins. These inhibitors directed against histone deacetylase (HDAC) enzymes have become an important therapeutic tool in oncology;
The urea cycle and related pathways in the liver of Walker-256 tumor-bearing rats.
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The urea cycle was evaluated in perfused livers isolated from cachectic tumor-bearing rats (Walker-256 tumor). Urea production in livers of tumor-bearing rats was decreased in the presence of the following substrates: alanine, alanine + ornithine, alanine + aspartate, ammonia, ammonia + lactate,
Novel diphenyl urea derivative serves as an inhibitor on human lung cancer cell migration by disrupting EMT via Wnt/β-catenin and PI3K/Akt signaling
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Targeted anti-tumor small molecules are considered to be promising candidates for cancer treatment. The novel diphenyl urea derivative (DUD) was synthesized by the molecular docking based on the structure optimization of Taspine (a natural product). In this study, we explored the anti-metastatic
PSMA-targeted stably linked "dendrimer-glutamate urea-methotrexate" as a prostate cancer therapeutic.
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One of the important criteria for achieving efficient nanoparticle-based targeted drug delivery is that the drug is not prematurely released at off-target sites. Here we report the preclinical evaluation of a serum-stable dendrimer-based drug conjugate capable of actively targeting into prostate
Synthesis and positron emission tomography evaluation of 18F-Glu-Urea-Lys, a prostate-specific membrane antigen-based imaging agent for prostate cancer.
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In recent years, single-photon emission computed tomography and positron emission tomography (PET) have also been used, in addition to computed tomography and magnetic resonance imaging, in targeting the diagnosis of prostate cancer. The aim of this study was to synthesize the prostate-specific
Kinetic and perfusion modeling of hyperpolarized (13)C pyruvate and urea in cancer with arbitrary RF flip angles.
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The accurate detection and characterization of cancerous tissue is still a major problem for the clinical management of individual cancer patients and for monitoring their response to therapy. MRI with hyperpolarized agents is a promising technique for cancer characterization because it can
Discovery of Novel (Imidazo[1,2-a]pyrazin-6-yl)ureas as Antiproliferative Agents Targeting P53 in Non-small Cell Lung Cancer Cell Lines.
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A series of (imidazo[1,2-a]pyrazin-6-yl)ureas were synthesized through 6-aminoimidazo[1,2-a]pyrazine as a key intermediate. 1-(Imidazo[1,2-a]pyrazin-6-yl)-3-(4-methoxy - phenyl)urea displayed a cytostatic activity against a non-small cell lung cancer cell line and was chosen for further mechanistic
177Lu-DOTA-HYNIC-Lys(Nal)-Urea-Glu: Biokinetics, Dosimetry, and Evaluation in Patients with Advanced Prostate Cancer.
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SPECT/CT images in patients have demonstrated the ability of [99mTc]Tc-EDDA/HYNIC-Lys(Nal)-Urea-Glu ([99mTc]Tc-iPSMA) to detect tumors and metastases of prostate cancer. Considering that theranostics combines the potential of therapeutic and diagnostic radionuclides in the same
Discovery of 1-(1H-Pyrazolo[4,3-c]pyridin-6-yl)urea Inhibitors of Extracellular Signal-Regulated Kinase (ERK) for the Treatment of Cancers.
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The ERK/MAPK pathway plays a central role in the regulation of critical cellular processes and is activated in more than 30% of human cancers. Specific BRAF and MEK inhibitors have shown clinical efficacy in patients for the treatment of BRAF-mutant melanoma. However, the majority of responses are
Discovery of N1-(4-((7-(3-(4-ethylpiperazin-1-yl)propoxy)-6-methoxyquinolin-4-yl)oxy)-3,5-difluorophenyl)-N3-(2-(2,6-difluorophenyl)-4-oxothiazolidin-3-yl)urea as a multi-tyrosine kinase inhibitor for drug-sensitive and drug-resistant cancers treatment.
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A series of 21 novel N1-(2-aryl-1,3-thiazolidin-4-one)-N3-aryl urea derivatives based on the previously identified lead compound I were synthesized and biologically characterized. The most promising compound 19a was identified as a multi-tyrosine kinase inhibitor, including
Design and synthesis of novel C14-urea-tetrandrine derivatives with potent anti-cancer activity.
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Tetrandrine is a dibenzyltetrahydroisoquinoline alkaloid, isolated from traditional Chinese medicinal plant Stephania tetrandra, with anti-tumor activity. Our previous study identified several derivatives of tetrandrine showing better activities than parental compound against human hepatocellular
Design, Synthesis of Novel Tetrandrine-14-l-Amino Acid and Tetrandrine-14-l-Amino Acid-Urea Derivatives as Potential Anti-Cancer Agents.
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Tetrandrine, a dibenzyltetrahydroisoquinoline alkaloid isolated from the root of the traditional Chinese medicinal plant Stephania tetrandra S. Moore, a member of the Menispermaceae, showed anti-cancer activity by inhibiting cell proliferation, preventing cell cycle progress and induction of
A circulating form of NADH oxidase activity responsive to the antitumor sulfonylurea N-4-(methylphenylsulfonyl)-N'-(4-chlorophenyl)urea (LY181984) specific to sera from cancer patients.
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Our laboratory has described a drug-responsive NADH oxidase activity of the external surface of the plasma membrane of HeLa and other cancer cells, but not from normal cells, that was shed into media conditioned by the growth of cancer cells such as HeLa. The shed form of the activity exhibited the
Lack of cross-resistance to a new cytotoxic arylchloroethyl urea in various drug-resistant tumor cells.
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1-Aryl 3-(2-chloroethyl) ureas (CEUs), a new class of potent antineoplastic agents, were recently developed in our laboratory. These compounds were designed from the aromatic moiety of chlorambucil and the unnitrosated pharmacophore of carmustine. In the present study we investigated the effect of
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