l lysine/neoplasms

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Graphene oxide/poly-L-lysine assembled layer for adhesion and electrochemical impedance detection of leukemia K562 cancer cells.

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A novel biocompatible film assembled by combining of graphene oxide (GO) and poly-L-lysine (PLL) for adhesion and electrochemical impedance detection of leukemia K562 cells was proposed. The biocompatible film showed an improved immobilization capacity for living cells and a good biocompatibility

Poly-L-Lysine Inhibits Tumor Angiogenesis and Induces Apoptosis in Ehrlich Ascites Carcinoma and in Sarcoma S-180 Tumor

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Background: This study focuses on the role of Poly-L-lysine (PLL), an essential amino acid, on molecular changes of tumor angiogenesis suppression, pro-apoptotic and anti-apoptotic gene expression after treatment on Ehrlich ascites carcinoma (EAC) and solid sarcoma-180 tumor cells bearing mice.

[Folate-poly-L-lysine-Gd-DTPA as MR contrast agent for tumor imaging via folate receptor-targeted delivery].

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OBJECTIVE To study folate-conjugated Gd-DTPA-Poly-L-Lysine (folate-PL-Gd-DTPA) as MR targeting agent to tumor cells via folate receptor, to evaluate feasibility and effectiveness by observing MR signal variations and imaging feature of pulmonary tumor xenografts in nude mice using this contrast

A photo-polymerized poly(Nε-acryloyl l-lysine) hydrogel for 3D culture of MCF-7 breast cancer cells.

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The most common in vitro cell culture platform, standard two-dimensional (2D) monolayer cell culture, often fails to mimic the tumor microenvironment, while animal models complicate research on the effect of individual factors on cell behaviors. Both are unsatisfactory in the research of molecular

Methotrexate-conjugated L-lysine coated iron oxide magnetic nanoparticles for inhibition of MCF-7 breast cancer cells.

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Methotrexate (MTX), a stoichiometric inhibitor of dihydrofolate reductase enzyme, is a chemotherapeutic agent for treating a diversity of neoplasms. In this study, we design and developed a new formulation of MTX that serves as drug carrier and examined its cytotoxic effect in vitro. This target

Pharmacokinetics and tumor disposition of PEGylated, methotrexate conjugated poly-l-lysine dendrimers.

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Dendrimers have potential for delivering chemotherapeutic drugs to solid tumors via the enhanced permeation and retention (EPR) effect. The impact of conjugation of hydrophobic anticancer drugs to hydrophilic PEGylated dendrimer surfaces, however, has not been fully investigated. The current study

Immunotherapeutic potential in guinea-pig tumor model of deoxyribonucleic acid from Mycobacterium bovis BCG complexed with poly-L-lysine and carboxymethylcellulose.

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In vivo antitumor activity of a deoxyribonucleic acid fraction obtained from Mycobacterium bovis BCG (named MY-1) increased when it was complexed with poly-L-lysine (poly LL) solubilized by addition of carboxymethylcellulose (CMC). The complex of MY-1 and poly LL/CMC induced interferon in vivo at a

Star-Shaped Amphiphilic Hyperbranched Polyglycerol Conjugated with Dendritic Poly(l-lysine) for the Codelivery of Docetaxel and MMP-9 siRNA in Cancer Therapy.

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The drug/gene codelivery is a promising strategy for cancer treatment. Herein, to realize the codelivery of docetaxel and MMP-9 siRNA plasmid efficiently into tumor cells, a star-shaped amphiphilic copolymer consisting of hyperbranched polyglycerol derivative (HPG-C18) and dendritic poly(l-lysine)

Redox-responsive nanoparticles from disulfide bond-linked poly-(N-ε-carbobenzyloxy-l-lysine)-grafted hyaluronan copolymers as theranostic nanoparticles for tumor-targeted MRI and chemotherapy.

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Redox-responsive theranostic nanoparticles based on poly-(N-ε-carbobenzyloxy-l-lysine) (PZLL) grafted hyaluronan (HA) (HA-g-SS-PZLL) copolymers were constructed for hepatocellular carcinoma diagnosis and therapy. These hyaluronan derivatives formed nanoparticles via a self-assembly process in

Induction of apoptosis, anti-proliferation, tumor-angiogenic suppression and down-regulation of Dalton's Ascitic Lymphoma (DAL) induced tumorigenesis by poly-l-lysine: A mechanistic study.

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OBJECTIVE The present study, attempts to validate the molecular mechanism(s) of Poly-l-lysine (PLL) induced apoptosis, anti-proliferative and anti-tumorigenic properties in in-vitro HUVECs cells and Dalton's Ascitic Lymphoma (DAL) and in in-vivo DAL cell bearing BALB/c mice model. METHODS The cell

Tumor-Microenvironment Relaxivity-Changeable Gd-Loaded Poly(L-lysine)/Carboxymethyl Chitosan Nanoparticles as Cancer-Recognizable Magnetic Resonance Imaging Contrast Agents.

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Magnetic resonance imaging (MRI) contrast agents with tumor-microenvironment changeable relaxivity are effective to increase the sensitivity and selectivity of MRI in tumor diagnosis. In this study, pH-sensitive Gd-loaded Poly(L-lysine)/ Carboxymethyl Chitosan Nanoparticles (Gd-PCNPs) were developed

Highly Efficient Labeling of Human Lung Cancer Cells Using Cationic Poly-l-lysine-Assisted Magnetic Iron Oxide Nanoparticles.

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Cell labeling with magnetic iron oxide nanoparticles (IONPs) is increasingly a routine approach in the cell-based cancer treatment. However, cell labeling with magnetic IONPs and their leading effects on the biological properties of human lung carcinoma cells remain scarcely reported. Therefore, in

Systemic antiangiogenic activity of cationic poly-L-lysine dendrimer delays tumor growth.

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This study describes the previously unreported intrinsic capacity of poly-L-lysine (PLL) sixth generation (G(6)) dendrimer molecules to exhibit systemic antiangiogenic activity that could lead to solid tumor growth arrest. The PLL-dendrimer-inhibited tubule formation of SVEC4-10 murine endothelial

Cationic poly-L-lysine dendrimer complexes doxorubicin and delays tumor growth in vitro and in vivo.

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We report in this study the complexation of the chemotherapeutic drug doxorubicin (DOX) with the novel sixth-generation cationic poly-l-lysine dendrimer (DM) (MW 8149 kDa), which we previously reported to exhibit systemic antiangiogenic activity in tumor-bearing mice. DOX-DM complexation was

Star-shaped cyclodextrin-poly(l-lysine) derivative co-delivering docetaxel and MMP-9 siRNA plasmid in cancer therapy.

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A new cyclodextrin derivative (CD-PLLD) consisting of a β-cyclodextrin core and poly(l-lysine) dendron arms was prepared by the click conjugation of per-6-azido-b-cyclodextrin with propargyl focal point poly(l-lysine) dendron of third generation, and then used for docetaxel (DOC) and the best siRNA

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