摘要:
The invention relates to diagnostic and treatment methods using a ligand library. Specifically, the invention relates to using a ligand library to diagnose or detect a drug induced response, including drug adverse reaction, side effects, drug resistance, and therapeutic efficacy. The invention further relates to identifying biomarkers associated with a drug induced response and providing a personalized medical treatment.
摘要:
The present invention is useful in screening for biomarkers associated with any other disease or condition. Such diseases and conditions range from the neurological diseases, autoimmune diseases and cancers identified above as well as any other disease or condition that has a biomarker such as an antibody or other characterizing protein or biomolecule associated with the disease or progression of the disease. The large ligand libraries of the invention can be used directly in biological fluid, under the appropriate experimental conditions and according to the processes recited herein, to screen for such markers and without the need to use fewer support members (e.g. about 100,000 or less) or without the need to transfer such peptoids or ligands to a microarray before screening the biological fluid. In addition, the ligand libraries may also be used to screen for cell based receptors that specifically relate to a particular cell surface marker.
摘要:
Methods of modifying a nucleophilic surface of a support are described. The methods involve reacting a multifunctional electrophilic reagent with nucleophilic groups on the surface of the support. The resulting electrophilic surface can be used for the covalent attachment of particles (e.g., beads) having nucleophilic functional groups. For example, nucleic acid templates with nucleophilic (e.g., amine) groups can be attached to a surface of the particles. The nucleophilic groups on the nucleic acid templates can then be used to attach the particles to the modified surface of the support. The resulting support-bound particles can be used to analyze (e.g., sequence) the nucleic acid templates on the particles.
摘要:
The invention provides biomolecule binding ligands, collections of biomolecule binding ligands, and their use in the purification of biological mixtures and in the identification of ligands having an affinity for a substance. The ligand is a compound of formula (III) or a compound of formula (IV): wherein for compounds of formula (I) one of R 1a , R 1b ,R 2 , R 3 and R 4 is a group comprising a linker attached to a support, and the others of R 1a , R 1b , R 2 , R 3 and R 4 are independently selected from optionally substituted C 1-20 alkyl, optionally substituted C 3-20 heterocyclyl or optionally substituted C 5-20 aryl, and R 1a , R 1b and R 2 are additionally selected from hydrogen, and R 2 is additionally further selected from -S(=O)R 5 and -C(=S)NR 6 R 7 , wherein R 5 , R 6 and R 7 are independently optionally substituted C 1-20 alkyl, optionally substituted C 3-20 heterocyclyl or optionally substituted C 5-20 aryl, or, optionally, two or more of the others of R 1a , R 1b , R 2 , R 3 and R 4 , together with the atoms to which they are bound, may form a ring; and for compounds of formula (II) one of R 1a , R 1b , R 3 and R 4 isa group comprising a linker attached to a support, and the others of R 1a , R 1b , R 3 and R 4 are independently selected optionally substituted C 1-20 alkyl, optionally substituted C 3-20 heterocyclyl or optionally substituted C 5-20 aryl, and R 1a , and R 1b are additionally selected from hydrogen, or, optionally, two or more of the others of R 1a , R 1b , R 3 and R 4 , together with the atomsto which they are bound, may form a ring.
摘要:
An approach to designing families of cocrystals with desired (tunable) pH dependent dissolution is developed. The solubility and dissolution rate of a family of cocrystals with the same API and a series of ligands that are weak acids or weak bases has been found to be determined and controlled by the acid or base dissociation constant of the ligand and the pH of the dissolution medium. In various aspects, pH dependent dissolution is imparted to a non-ionizable API or the dissolution of ionizable API's is modulated.
摘要:
The present invention provides novel microfluidic devices, kits, and methods that are useful for performing high-throughput screening assays and diagnostics. Such diagnostic methods can include emulsifying an aqueous library of compounds with a set of uniquely dyecoded-labeled droplets in an inert fluorocarbon medium, thereby forming an interactor library, emulsifying an aqueous sample from a subject in an inert fluorocarbon medium, wherein said sample contains a compound that will react with at least one interactor molecule from the interactor library, coalescing the emulsions to form a nanoreactor, and screening the nanoreactors for a desirable reaction between the contents of the nanoreactor, herein one or more steps are performed on a microfluidic device, which can include a plurality of electrically addressable, channel bearing fluidic modules integrally arranged on a microfabricated substrate such that a continuous channel is provided for flow of immiscible fluids.
摘要:
The present invention provides novel microfluidic devices and methods that are useful for performing high-throughput screening assays and combinatorial chemistry. The device can include a plurality of electrically addressable, channel bearing fluidic modules integrally arranged on a microfabricated substrate such that a continuous channel is provided for flow of immiscible fluids.
摘要:
The present invention provides novel microfluidic devices and methods that are useful for performing high-throughput screening assays and combinatorial chemistry. Such methods can include labeling a library of compounds by emulsifying aqueous solutions of the compounds and aqueous solutions of unique liquid labels on a microfluidic device, which includes a plurality of electrically addressable, channel bearing fluidic modules integrally arranged on a microfabricated substrate such that a continuous channel is provided for flow of immiscible fluids, whereby each compound is labeled with a unique liquid label, pooling the labeled emulsions, coalescing the labeled emulsions with emulsions containing a specific cell or enzyme, thereby forming a nanoreactor, screening the nanoreactors for a desirable reaction between the contents of the nanoreactor, and decoding the liquid label, thereby identifying a single compound from a library of compounds.
摘要:
The present invention provides compounds with activity against a variety of flaviviruses, uses thereof, and methods for identifying such compounds.
摘要:
The present invention relates to tetrahydro-pyrrolo[1,2-a]imidazole-2,5-dione derivative compounds, hexahydropyrrolo[1,2-a]pyrimidine-2,6-dione derivative compounds, and combinatorial libraries comprising such compounds. The present invention also relates to methods of preparing such compounds. The present invention also relates to methods of preparing such compounds. The methods first involve providing a functionalized resin solid support. Next, the functionalized resin solid support is reacted with amino acids under conditions effective to produce a resin bound dipeptide or tripeptide alcohol intermediate compound. Then, the resin bound dipeptide or tripeptide alcohol intermediate compound is oxidized under conditions effective to convert the resin bound dipeptide or tripeptide alcohol intermediate compound to a resin bound dipeptide or tripeptide aldehyde intermediate compound, Finally, the resin bound dipeptide or tripeptide aldehyde intermediate compound is cyclized under conditions effective to produce the tetrahydro-pyrrolo[1,2-a]imidazole-2,5-dione derivative or hexahydro-pyrrolo[1,2-a]pyrimidine-2,6-dione derivative compound. The methods can be performed in solid phase solid/solution phase, or solution phase.