摘要:
Novel compounds are provided that bind to polo-like kinases through the polo-box domain. In certain embodiments, the novel compounds are PEGylated peptides. The PEGylated peptides in accordance with the invention demonstrate high PBD-binding affinity. In certain embodiments, the PEGylated peptides have also achieved activities in whole cell systems. The invention also provides compounds that bind polo-like kinases through the polo-box domain and possess reduced anionic charge. Further provided are methods of design and/or synthesis of the PEGylated peptides and methods of use thereof. The invention provides methods of use of the compounds and methods of synthesis of the compounds. The compounds of the invention have potential therapeutic activity in view of their binding and inhibitory activities towards Plk1. They are based on the amino acid sequence PLHSpT (phosphorylated Thr). The PEG moiety, when present, is covalently attached at the N-terminus. The invention also encompasses derivatives having substituents on the Pro and/or the His side chains, substituents on the phosphate group, the replacement of His with Gln, the replacement of Pro with a N-substituted Gly, the replacement of Ser with Ala, as well as HS-pT fragments with N-terminal alkoxycarbonyl group and PLHS fragments with a C-terminal glyco-imino-alkylxyalkylamide group.
摘要:
Found in various eukaryotic organisms, polo-like kinases (collectively, Plks) are a conserved subfamily of Ser/Thr protein kinases that play critical roles in cell proliferation. Provided herein are compounds that specifically inhibit the activity of Plks, specifically Plk1. Further provided herein are methods for use of the compounds for the treatment of hyperproliferative disorders, particularly cancer. Also provided are uses of the compounds for the preparation of a medicament.
摘要:
Novel compounds are provided that bind to polo-like kinases through the polo-box domain. In certain embodiments, the novel compounds are PEGylated peptides. The PEGylated peptides in accordance with the invention demonstrate high PBD-binding affinity. In certain embodiments, the PEGylated peptides have also achieved activities in whole cell systems. The invention also provides compounds that bind polo-like kinases through the polo-box domain and possess reduced anionic charge. Further provided are methods of design and/or synthesis of the PEGylated peptides and methods of use thereof. The invention provides methods of use of the compounds and methods of synthesis of the compounds.
摘要:
Found in various eukaryotic organisms, polo-like kinases (collectively, Plks) are a conserved subfamily of Ser/Thr protein kinases that play critical roles in cell proliferation. Provided herein are compounds that specifically inhibit the activity of Plks, specifically Plk1. Further provided herein are methods for use of the compounds for the treatment of hyperproliferative disorders, particularly cancer. Also provided are uses of the compounds for the preparation of a medicament.
摘要:
An endoscopic tissue dissector is disclosed. The endoscopic tissue dissector includes a head for incising and entering tissue, a body including an endoscope passage part coupled to the head and one side coupled to the head, and a handle coupled to the other side of the body. A transfer direction of a load applied to the handle is substantially identical to a transfer direction of a load applied to the body from the handle.
摘要:
Disclosed are a polyester/polycarbonate alloy resin composition that includes: (A) a mixed resin including (A-1) a polycarbonate resin having a weight average molecular weight ranging from about 30,000 to about 200,000 g/mol and (A-2) a polyester resin having an intrinsic viscosity of about 0.85 to about 1.52 dl/g; (B) an acryl-based resin; and (C) an impact-reinforcing agent, and a molded product made using the polyester/polycarbonate alloy resin composition.
摘要:
A method and apparatus for automatically controlling power of address data in a plasma display panel (PDP), and a PDP device including the apparatus are provided. In this method, first, a difference-sum of pixel value differences between adjacent pixels successively arranged along a column of block is calculated. Then, an address power control level corresponding to the calculated difference-sum for each block is determined. Thereafter, gain information for each block on the basis of the address power control level for each block is determined. Next, a gain for each block corresponding to the gain information for each block is output. Then, the input image signal is multiplied by the gain for each block to correct the input image signal to output the corrected image signal. Accordingly, power consumption, noise, and generation of heat are reduced, and also the brightness is improved.
摘要:
Disclosed is a polycarbonate resin composition that includes (A) a polycarbonate resin, (B) a rubber modified vinyl-based graft copolymer including a rubbery polymer having an average particle diameter of about 0.05 to about 0.5 μm, and (C) a rubber modified vinyl-based copolymer including a rubber-phase particle having an average particle diameter of about 0.6 to about 10 μm as a dispersion phase. A molded product using the polycarbonate resin composition is also provided.
摘要:
A composition for preventing and/or treating brain tumor, containing caffeine and/or its analog, and/or their pharmaceutically acceptable salt, as an active ingredient, is provided. The composition for preventing or treating brain tumor has an activity to inhibit invasion, migration, and proliferation of brain tumor cells, and thereby very effective for the prevention and treatment of brain tumor.