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Nanoconjugate Platforms Development Based in Poly(β,L-Malic Acid) Methyl Esters for Tumor Drug Delivery.

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New copolyesters derived from poly(β,L-malic acid) have been designed to serve as nanoconjugate platforms in drug delivery. 25% and 50% methylated derivatives (coPMLA-Me(25)H(75) and coPMLA-Me(50)H(50)) with absolute molecular weights of 32 600 Da and 33 100 Da, hydrodynamic diameters of 3.0 nm and

Poly(malic acid) nanoconjugates containing various antibodies and oligonucleotides for multitargeting drug delivery.

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Nanoconjugates are emerging as promising drug-delivery vehicles because of their multimodular structure enabling them to actively target discrete cells, pass through biological barriers and simultaneously carry multiple drugs of various chemical nature. Nanoconjugates have matured from simple

Polymalic acid-based nanobiopolymer provides efficient systemic breast cancer treatment by inhibiting both HER2/neu receptor synthesis and activity.

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Biodegradable nanopolymers are believed to offer great potential in cancer therapy. Here, we report the characterization of a novel, targeted, nanobiopolymeric conjugate based on biodegradable, nontoxic, and nonimmunogenic PMLA [poly(β-l-malic acid)]. The PMLA nanoplatform was synthesized for

Temozolomide delivery to tumor cells by a multifunctional nano vehicle based on poly(β-L-malic acid).

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OBJECTIVE Temozolomide (TMZ) is a pro-drug releasing a DNA alkylating agent that is the most effective drug to treat glial tumors when combined with radiation. TMZ is toxic, and therapeutic dosages are limited by severe side effects. Targeted delivery is thus needed to improve efficiency and reduce

Toxicity and efficacy evaluation of multiple targeted polymalic acid conjugates for triple-negative breast cancer treatment.

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Engineered nanoparticles are widely used for delivery of drugs but frequently lack proof of safety for cancer patient's treatment. All-in-one covalent nanodrugs of the third generation have been synthesized based on a poly(β-L-malic acid) (PMLA) platform, targeting human triple-negative breast

Nanobiopolymer for direct targeting and inhibition of EGFR expression in triple negative breast cancer.

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Treatment options for triple negative breast cancer (TNBC) are generally limited to cytotoxic chemotherapy. Recently, anti-epidermal growth factor receptor (EGFR) therapy has been introduced for TNBC patients. We engineered a novel nanobioconjugate based on a poly(β-L-malic acid) (PMLA) nanoplatform

Physicochemical characteristics and preliminary in vivo biological evaluation of nanocapsules loaded with siRNA targeting estrogen receptor alpha.

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Specific siRNAs that target estrogen receptor alpha (ERalpha) were encapsulated in nanocapsules (NCs). We produced small (approximately 100-200 nm) ERalpha-siRNA NCs with a water core by incorporating two mixed duplexes of specific ERalpha-siRNAs (ERalpha-mix-siRNA) into NCs. The encapsulation yield

Antiproliferative activity in vitro of new malatoplatinum(ll) complexes.

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The results of studies on antiproliferative activity in vitro of nine new platinum(II) complexes against cells of eight human and six murine neoplastic cell lines are described. New complexes with the anionic rest originating from enantiomeric forms of hydroxydicarboxylic malic acid were synthesized

Advances in Imaging: Brain Tumors to Alzheimer's Disease.

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Professor Black and colleagues have been working to improve the quality and sensitivity of imaging in the early detection of conditions from brain tumors to Alzheimer's disease to enhance treatment protocols and patient management. Professor Black et al introduced nanoparticles to improve MRI

Optimal Design of Novel Functionalized Nanoconjugates Based on Polymalic Acid for Efficient Tumor Endocytosis with Enhanced Anticancer Activity.

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To overcome the strong negative charge and improve the endocytosis of poly-β-malic acid (PMLA) as a drug carrier, a pH-sensitive nanoconjugate of PMLA/hyd-PEG5000/PEG2000-TAT/DOX (PHPTD) was developed. The trans activator of transcription (TAT) modified with polyethylene glycol2000(PEG2000) was

Nanoconjugate based on polymalic acid for tumor targeting.

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A new prototype of polymer-derived drug delivery system, the nanoconjugate Polycefin, was tested for its ability to accumulate in tumors based on enhanced permeability and retention (EPR) effect and receptor mediated endocytosis. Polycefin was synthesized for targeted delivery of Morpholino

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