201467-81-4Relevant articles and documents
Immobilization of liposomes and vesicles on patterned surfaces by a peptide coiled-coil binding motif
Voskuhl, Jens,Wendeln, Christian,Versluis, Frank,Fritz, Eva-Corinna,Roling, Oliver,Zope, Harshal,Schulz, Christian,Rinnen, Stefan,Arlinghaus, Heinrich F.,Ravoo, Bart Jan,Kros, Alexander
, p. 12616 - 12620 (2012)
Patchy surfaces: An azide-terminated self-assembled monolayer was patterned with the peptide sequence (EIAALEK)3 by using microcontact printing. This sequence forms stable coiled-coil heterodimers with the complementary peptide (KIAALKE)3
Synthesis of polyanionic c5-modified 2′-deoxyuridine and 2′-deoxycytidine-5′-triphosphates and their properties as substrates for dna polymerases
Allen, Esther,Dutson, Claire,Hedley, Joseph H.,Murton, Heather E.,Thompson, Mark J.,Williams, David M.
, (2021)
Modified 2′-deoxyribonucleotide triphosphates (dNTPs) have widespread applications in both existing and emerging biomolecular technologies. For such applications it is an essential requirement that the modified dNTPs be substrates for DNA polymerases. To date very few examples of C5-modified dNTPs bearing negatively charged functionality have been described, despite the fact that such nucleotides might potentially be valuable in diagnostic applications using Si-nanowire-based detection systems. Herein we have synthesised C5-modified dUTP and dCTP nucleotides each of which are labelled with an dianionic reporter group. The reporter group is tethered to the nucleobase via a polyethylene glycol (PEG)-based linkers of varying length. The substrate properties of these modified dNTPs with a variety of DNA polymerases have been investigated to study the effects of varying the length and mode of attachment of the PEG linker to the nucleobase. In general, nucleotides containing the PEG linker tethered to the nucleobase via an amide rather than an ether linkage proved to be the best substrates, whilst nucleotides containing PEG linkers from PEG6 to PEG24 could all be incorporated by one or more DNA polymerase. The polymerases most able to incorporate these modified nucleotides included Klentaq, Vent(exo-) and therminator, with incorporation by Klenow(exo-) generally being very poor.
F-labeled PSMA targeted diagnosis and treatment integrated small-molecular drug conjugate, preparation method and application of F-labeled PSMA targeted diagnosis and treatment integrated small-molecular drug conjugate
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, (2021/04/21)
The invention relates to a tumor targeted diagnosis and treatment integrated drug compound, in particular to an F-labeled PSMA targeted diagnosis and treatment integrated small molecular drug conjugate, a preparation method and an application of th
TARGETED BIFUNCTIONAL DEGRADERS
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, (2021/04/17)
The present invention provides, in one aspect, bifunctional compounds that can be used to promote or enhance degradation of certain circulating proteins. In another aspect, the present invention provides bifunctional compounds that can be used to promote or enhance degradation of certain autoantibodies. In certain embodiments, treatment or management of a disease and/or disorder requires degradation, removal, or reduction in concentration of the circulating protein or the autoantibody in the subject. Thus, in certain embodiments, administration of a compound of the invention to the subject removes or reduces the circulation concentration of the circulating protein or the autoantibody, thus treating, ameliorating, or preventing the disease and/or disorder. In certain embodiments, the circulating protein is TNF.
Optical Manipulation of Subcellular Protein Translocation Using a Photoactivatable Covalent Labeling System
Kowada, Toshiyuki,Arai, Keisuke,Yoshimura, Akimasa,Matsui, Toshitaka,Kikuchi, Kazuya,Mizukami, Shin
, p. 11378 - 11383 (2021/04/09)
The photoactivatable chemically induced dimerization (photo-CID) technique for tag-fused proteins is one of the most promising methods for regulating subcellular protein translocations and protein–protein interactions. However, light-induced covalent protein dimerization in living cells has yet to be established, despite its various advantages. Herein, we developed a photoactivatable covalent protein-labeling technology by applying a caged ligand to the BL-tag system, a covalent protein labeling system that uses mutant β-lactamase. We further developed CBHD, a caged protein dimerizer, using caged BL-tag and HaloTag ligands, and achieved light-induced protein translocation from the cytoplasm to subcellular regions. In addition, this covalent photo-CID system enabled quick protein translocation to a laser-illuminated microregion. These results indicate that the covalent photo-CID system will expand the scope of CID applications in the optical manipulation of cellular functions.
Development of small-molecule BRD4 degraders based on pyrrolopyridone derivative
Chen, Pan,Wang, Lixun,Wang, Tao,Xu, Changliang,Zhang, Huibin,Zhang, Jian,Zheng, Peiyuan,Zhou, Jinpei,Zhu, Peiyu
, (2020/04/30)
Bromodomain-containing protein 4 (BRD4) plays a crucial role in the epigenetic regulation of gene transcription and some BRD4 inhibitors have been advanced to clinical trials. Nevertheless, the clinical application of BRD4 inhibitors could be limited by drug resistance. As an alternative strategy, the emerging Proteolysis Targeting Chimeras (PROTACs) technology has the potential to overcome the drug resistance of traditional small-molecule drugs. Based on PROTACs approaches, several BRD4 degraders were developed and have been proved to degrade BRD4 protein and inhibit tumor growth. Herein, we present the design, synthesis, and biological evaluation of pyrrolopyridone derivative-based BRD4 degraders. Four synthesized compounds displayed comparative potence against BRD4 BD1 with IC50 at low nanomolar concentrations. Anti-proliferative activity of 32a against BxPC3 cell line (IC50 = 0.165 μM) was improved by about 7-fold as compared to the BRD4 inhibitor ABBV-075. Furthermore, degrader 32a potently induced the degradation of BRD4 and inhibited the expression of c-Myc in BxPC3 cell line in a time-dependent manner. The exploration of intracellular antitumor mechanism showed 32a induced cell cycle arrest and apoptosis effectively. All the results demonstrated that compound 32a could be considered as a potential BRD4 degrader for further investigation.
Bladder Cancer Photodynamic Therapeutic Agents with Off-On Magnetic Resonance Imaging Enhancement
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Sheet 33, (2019/10/23)
Provided herein are porphyrinato-lanthanide complexes useful as theranostic agents and methods of preparation and use thereof. The porphyrinato-lanthanide complexes are useful in the treatment and imaging of cancer.
PYRIDAZINE DERIVATIVES AS SMARCA2/4 DEGRADERS
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Page/Page column 100; 107, (2019/11/12)
The present invention provides pyridazine derivatives of formula (I), which are therapeutically useful as SMARCA2/4 degraders. These compounds are useful in the treatment and/or prevention of diseases or disorders dependent upon SMARCA2/4 in a mammal. The present invention also provides preparation of the compounds and pharmaceutical compositions comprising at least one of the pyridazine derivatives of formula (I) or a pharmaceutically acceptable salt, or a stereoisomer thereof.
NANOPARTICLES FOR DIAGNOSIS AND DRUG DELIVERY
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Page/Page column 42; 43, (2017/04/11)
The present invention relatesto a nanoparticle having a size comprised from 2 to 300 nm comprising: (i) a core comprising on its surface a noble metal selected from gold, silver or platinum, and (ii) an optionally positively charged amphiphilic linker comprising a hydrophobic C1-C20 alkyl thiolate moiety and a hydrophilic moietywhich is optionally hydrophilic positively charged. The invention also provides nanovectors comprising the nanoparticles of the invention and a compound of interest,such as a pharmaceutically active agent, in particular an anti-tumoral agent. Also provided are nanoparticles and nanovectors as defined above for diagnosis or for the prevention and/or treatment of a disease, in particular cancer.
Irreversible Cysteine-Selective Protein Labeling Employing Modular Electrophilic Tetrafluoroethylation Reagents
Václavík, Ji?í,Zschoche, Reinhard,Klimánková, Iveta,Matou?ek, Václav,Beier, Petr,Hilvert, Donald,Togni, Antonio
, p. 6490 - 6494 (2017/05/15)
Fluoroalkylation reagents based on hypervalent iodine are widely used to transfer fluoroalkyl moieties to various nucleophiles. However, the transferred groups have so far been limited to simple structural motifs. We herein report a reagent featuring a secondary amine that can be converted to amide, sulfonamide, and tertiary amine derivatives in one step. The resulting reagents bear manifold functional groups, many of which would not be compatible with the original synthetic pathway. Exploiting this structural versatility and the known high reactivity toward thiols, the new-generation reagents were used in bioconjugation with an artificial retro-aldolase, containing an exposed cysteine and a reactive catalytic lysine. Whereas commercial reagents based on maleimide and iodoacetamide labeled both sites, the iodanes exclusively modified the cysteine residue. The study thus demonstrates that modular fluoroalkylation reagents can be used as tools for cysteine-selective bioconjugation.
