摘要:
The present invention discloses novel compounds useful as alkaline phosphatase inhibitors and therapeutic agents. Preferably, the novel compounds are useful as selective inhibitors of human alkaline phosphatases as opposed to Escherichia coli alkaline phosphatases. The novel compounds can also be used as cancer therapeutic agents, anti-depressive agents, anti-anergic agents, and antihelminthic agents. The novel compounds have the following general formula: ##STR1## wherein R' is an aryl, aryl ether, aryl thioether, aromatic heterocyclic, aromatic heterocyclic thioether, or aromatic heterocyclic ether group. More preferably, R' is a phenyl or a pyridine. Most preferably, R' is of the following formula: ##STR2## 2-thiopyridine, or ##STR3## 2-oxypyridine. R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.1 ', R.sub.2 ', R.sub.3 ', R.sub.4 ', and R.sub.5 ' can be the same or different, and at least one of which is selected from the group consisting of: H, C.sub.1 -C.sub.6 alkyl, halo C.sub.1 -C.sub.6 alkyl, phenyl, C.sub.1 -C.sub.6 alkoxy, phenoxy, trifluoromethyl, nitro, amino, carboxy, and halo groups with the proviso that each novel compound has no more than three substituents. Hydrogen is not considered a substituent.
摘要:
The present invention provides crosslinking, conjugating and reducing agents which are functional with at least one phosphorothioate monoester group (--SPO.sub.3.sup.-2). Crosslinking and conjugation methods as well as solid phase reagents and conjugates which are useful in immunoassays are also provided. Crosslinking and conjugating agents of the invention generally comprise a compound corresponding to the formula (I), shown below, wherein n is at least 1 and Q is a straight or branched monomer, polymer or oligomer having an average molecular weight between about 200 and about 1,000,000. Additionally, when n is 1, Q comprises at least 1 additional reactive functionality. Q--(S--PO.sub.3.sup.-2)n (I) The reducing agents that are provided conform to a compound of the formula (Y), shown below, wherein (A) and (Z) can be independently selected from C.sub.1 -C.sub.5 alkyl and CONH(CH.sub.2).sub.p wherein p is an integer between 1 and 5. ##STR1##
摘要:
A process for producing a derivatized immunoglobulin and conjugates prepared therewith are provided. The derivatized immunoglobulin is produced by introducing sulfhydryl groups in the Fc region of an immunoglobulin wherein the Fab portion of the immunoglobulin is not altered. The derivatized immunoglobulin is used to prepare conjugates with various detectable moieties wherein a controlled distance exists between the Fc region of the immunoglobulin and the detectable moiety. The conjugates are particularly useful for performing immunoassays, and exhibit improved longevity, specificity and sensitivity.
摘要:
The present invention provides crosslinking, conjugating and reducing agents which are functional with at least one phosphorothioate monoester group (--SPO.sub.3.sup.-2). Crosslinking and conjugation methods as well as solid phase reagents and conjugates which are useful in immunoassays are also provided. Crosslinking and conjugating agents of the invention generally comprise a compound corresponding to the formula (I), shown below, wherein n at least 1 and Q is a straight or branched monomer, polymer or oligomer having an average molecular weight between about 200 and about 1,000,000. Additionally, when n is 1, Q comprises at least 1 additional reactive functionality. Q--(S--PO.sub.3 .sup.-2)n (I) The reducing agents that are provided conform to a compound of the formula (Y), shown below, wherein (A) and (Z) can be independently selected from C.sub.1 -C.sub.5 alkyl and CONH(CH.sub.2)p wherein p is an integer between 1 and 5. ##STR1##
摘要:
A method for performing a multiplexed diagnostic assay, such as for two or more different targets in a sample, is described. One embodiment comprised contacting the sample with two or more specific binding moieties that bind specifically to two or more different targets. The two or more specific binding moieties are conjugated to different haptens, and at least one of the haptens is an oxazole, a pyrazole, a thiazole, a nitroaryl compound other than dinitrophenyl, a benzofurazan, a triterpene, a urea, a thiourea, a rotenoid, a coumarin, a cyclolignan, a heterobiaryl, an azo aryl, or a benzodiazepine. The sample is contacted with two or more different anti-hapten antibodies that can be detected separately. The two or more different anti-hapten antibodies may be conjugated to different detectable labels.
摘要:
Embodiments of hapten conjugates including a hapten, an optional linker, and a peroxidase-activatable aryl moiety are disclosed. In some embodiments, the peroxidase-activatable aryl moiety is tyramine or a tyramine derivative. Embodiments of methods for making and using the hapten conjugates also are disclosed. In particular embodiments, the hapten conjugates are used in a signal amplification assay. In certain embodiments, the hapten is an oxazole, a pyrazole, a thiazole, a benzofurazan, a triterpene, a urea, a thiourea other than a rhodamine thiourea, a nitroaryl other than dinitrophenyl or trinitrophenyl, a rotenoid, a cyclolignan, a heterobiaryl, an azoaryl, a benzodiazepine, or 7-diethylamino-3-carboxycoumarin. The hapten is coupled to the peroxidase-activatable aryl moiety directly or indirectly via a linker. In certain embodiments, the hapten conjugates are used in multiplexed assays.
摘要:
Disclosed herein are antibody-nanoparticle conjugates that include two or more nanoparticles (such as gold, palladium, platinum, silver, copper, nickel, cobalt, iridium, or an alloy of two or more thereof) directly linked to an antibody or fragment thereof through a metal-thiol bond. Methods of making the antibody-nanoparticle conjugates disclosed herein include reacting an arylphosphine-nanoparticle composite with a reduced antibody to produce an antibody-nanoparticle conjugate. Also disclosed herein are methods for detecting a target molecule in a sample that include using an antibody-nanoparticle conjugate (such as the antibody-nanoparticle conjugates described herein) and kits for detecting target molecules utilizing the methods disclosed herein.
摘要:
Certain disclosed embodiments of the present invention concern the synthesis, derivatization, conjugation to immunoglobulins and signal amplification based on discrete, relatively short polymers having plural reactive functional groups that react with plural molecules of interest. Reactive functional groups, such as hydrazides, may be derivatized with a variety of detectable labels, particularly haptens. The remaining reactive functional groups may be conjugated directly to a specific binding molecule, such as to the oxidized carbohydrate of the Fc region of the antibody. Disclosed conjugates display large signal amplification as compared to those based on molecules derivatized with single haptens, and are useful for assay methods, particularly multiplexed assays.
摘要:
Certain disclosed embodiments of the present invention concern the synthesis, derivatization, conjugation to immunoglobulins and signal amplification based on discrete, relatively short polymers having plural reactive functional groups that react with plural molecules of interest. Reactive functional groups, such as hydrazides, may be derivatized with a variety of detectable labels, particularly haptens. The remaining reactive functional groups may be conjugated directly to a specific binding molecule, such as to the oxidized carbohydrate of the Fc region of the antibody. Disclosed conjugates display large signal amplification as compared to those based on molecules derivatized with single haptens, and are useful for assay methods, particularly multiplexed assays.