Haptens, hapten conjugates, compositions thereof and method for their preparation and use
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.
1. A method for detecting two or more different targets in a sample, comprising:
contacting the sample with two or more specific binding moieties that bind specifically to two or more different targets, wherein the two or more specific binding moieties are conjugated to different haptens, at least one of the haptens being a first rotenoid having a formula
where R—R 5 independently are hydrogen, aldehyde, alkoxy, aliphatic, substituted aliphatic, heteroaliphatic, amino, amino acid, amido, cyano (—CN), halogen, hydroxyl, hydroxylamine, oxime, oxime ether, alkyl hydroxyl, ketone, nitro, sulfhydryl, sulfonyl, sulfoxide, carboxyl, carboxylate, ester, alkyl ester, acyl, exomethylene, ether, cyclic, heterocyclic, aryl, alkyl aryl, heteroaryl, carbohydrate, monosaccharides, disaccharides, oligosaccharides, polysaccharides, and combinations thereof, Y is oxygen, an amine, or sulfur and at least one of the R—R 5 substituents is bonded to a linker or to a carrier molecule, the other hapten being an oxazole, a pyrazole, a thiazole, a benzofurazan, a triterpene, a urea, a thiourea, a nitroaryl other than dinitrophenyl, a second rotenoid different from the first rotenoid, a coumarin, a cyclolignan, a heterobiaryl, an azoaryl, or a benzodiazepine;
contacting the sample with two or more different anti-hapten antibodies that can be detected separately; and
detecting the anti-hapten antibodies.
2. A method for detecting a target in a sample, comprising:
contacting the sample with a specific binding moiety that binds specifically to a target, the specific binding moiety being conjugated to a rotenoid hapten having a formula
contacting the sample with an antibody that specifically binds to the rotenoid hapten; and
detecting the antibody that specifically binds to the rotenoid hapten.
3. The method according to claim 1 where the first rotenoid has a formula
where R—R 2 and R 4 -R 5 independently are aliphatic, alkoxy, alkyl hydroxyl, hydrogen or hydroxyl.
4. The method according to claim 3 where the other hapten is
5. The method according to claim 3 where the other hapten is
6. The method according to claim 3 where the other hapten is
7. The method according to claim 3 where the other hapten is
8. The method according to claim 3 where the other hapten is
9. The method according to claim 3 where the other hapten is
10. The method according to claim 3 where the other hapten is
11. The method according to claim 3 where the other hapten is
12. The method according to claim 1 where R—R 5 independently are aliphatic, substituted aliphatic, hydrogen or hydroxyl.
13. The method according to claim 1 where Y is oxygen.
14. The method according to claim 1 where R—R 5 independently are hydrogen or hydroxyl, and Y is oxygen.
15. The method according to claim 1 where Y is —NH.
16. The method according to claim 2 , further comprising:
contacting the sample with a second specific binding moiety that specifically binds to a second, different target in the sample, the second specific binding moiety being conjugated to a benzofurazan hapten having a chemical structure
contacting the sample with a second antibody that specifically binds to the benzofurazan hapten; and
detecting the second antibody that specifically binds to the benzofurazan hapten separately from the antibody that specifically binds to the rotenoid hapten.
17. The method according to claim 2 , further comprising:
contacting the sample with a second specific binding moiety that specifically binds to a second, different target in the sample, the second specific binding moiety being conjugated to a thiazole hapten having a chemical structure
contacting the sample with a second antibody that specifically binds to the thiazole hapten; and
detecting the second antibody that specifically binds to the thiazole hapten separately from the antibody that specifically binds to the rotenoid hapten.
18. The method according to claim 2 , further comprising:
contacting the sample with a second specific binding moiety that specifically binds to a second, different target in the sample, the second specific binding moiety being conjugated to a coumarin hapten having a chemical structure
contacting the sample with a second antibody that specifically binds to the coumarin hapten; and
detecting the second antibody that specifically binds to the coumarin hapten separately from the antibody that specifically binds to the rotenoid hapten.
19. The method according to claim 2 , further comprising:
contacting the sample with a second specific binding moiety that specifically binds to a second, different target in the sample, the second specific binding moiety being conjugated to a coumarin hapten having a chemical structure
contacting the sample with a second antibody that specifically binds to the coumarin hapten; and
detecting the second antibody that specifically binds to the coumarin hapten separately from the antibody that specifically binds to the rotenoid hapten.
20. The method according to claim 2 , further comprising:
contacting the sample with a second specific binding moiety that specifically binds to a second, different target in the sample, the second specific binding moiety being conjugated to a cyclolignan hapten having a chemical structure
contacting the sample with a second antibody that specifically binds to the cyclolignan hapten; and
detecting the second antibody that specifically binds to the cyclolignan hapten separately from the antibody that specifically binds to the rotenoid hapten.
21. The method according to claim 2 , further comprising:
contacting the sample with a second specific binding moiety that specifically binds to a second, different target in the sample, the second specific binding moiety being conjugated to a cyclolignan hapten having a chemical structure
contacting the sample with a second antibody that specifically binds to the cyclolignan hapten; and
detecting the second antibody that specifically binds to the cyclolignan hapten separately from the antibody that specifically binds to the rotenoid hapten.
22. The method according to claim 2 , further comprising:
contacting the sample with a second specific binding moiety that specifically binds to a second, different target in the sample, the second specific binding moiety being conjugated to a heteroaryl hapten having a chemical structure
contacting the sample with a second antibody that specifically binds to the heteroaryl hapten; and
detecting the second antibody that specifically binds to the heteroaryl hapten separately from the antibody that specifically binds to the rotenoid hapten.
23. The method according to claim 2 , further comprising:
contacting the sample with a second specific binding moiety that specifically binds to a second, different target in the sample, the second specific binding moiety being conjugated to a heteroaryl hapten having a chemical structure
contacting the sample with a second antibody that specifically binds to the heteroaryl hapten; and
detecting the second antibody that specifically binds to the heteroaryl hapten separately from the antibody that specifically binds to the rotenoid hapten.
24. The method according to claim 2 , further comprising:
contacting the sample with a second specific binding moiety that specifically binds to a second, different target in the sample, the second specific binding moiety being conjugated to a azoaryl hapten having a chemical structure
contacting the sample with a second antibody that specifically binds to the azoaryl hapten; and
detecting the second antibody that specifically binds to the azoaryl hapten separately from the antibody that specifically binds to the rotenoid hapten.
25. The method according to claim 2 , further comprising:
contacting the sample with a second specific binding moiety that specifically binds to a second, different target in the sample, the second specific binding moiety being conjugated to a benzodiazepine hapten having a chemical structure
contacting the sample with a second antibody that specifically binds to the benzodiazepine hapten; and
detecting the second antibody that specifically binds to the benzodiazepine hapten separately from the antibody that specifically binds to the rotenoid hapten.