Analysis using a distributed sample

• US 20030044799A1
• Filed: 08/31/2001
• Published: 03/06/2003
• Est. Priority Date: 08/31/2001
• Status: Active Grant

• Current Assignee: Beckman Coulter Incorporated (Danaher Corporation)
• Original Assignee: Beckman Coulter Incorporated (Danaher Corporation)
• Inventors: Matson, Robert S.
• Granted Patent: US 6,929,944 B2
• Time in Patent Office: Days
• US Class Current: 435/6
• CPC Class Codes: B01J 2219/00315 Microtiter plates
• CPC Class Codes: B01J 2219/00367 capillary
• CPC Class Codes: B01J 2219/00378 Piezoelectric or ink jet dispensers
• CPC Class Codes: B01J 2219/00385 Printing
• CPC Class Codes: B01J 2219/00387 Applications using probes
• CPC Class Codes: B01J 2219/005 Beads
• CPC Class Codes: B01J 2219/00509 Microcolumns
• CPC Class Codes: B01J 2219/00527 Sheets
• CPC Class Codes: B01J 2219/00585 Parallel processes
• CPC Class Codes: B01J 2219/00596 Solid-phase processes
• CPC Class Codes: B01J 2219/00605 the compounds being directly bound or immobilised to solid supports
• CPC Class Codes: B01J 2219/0061 The surface being organic
• CPC Class Codes: B01J 2219/00612 the surface being inorganic
• CPC Class Codes: B01J 2219/00619 using hydrophilic or hydrophobic regions
• CPC Class Codes: B01J 2219/00621 by physical means, e.g. trenches, raised areas
• CPC Class Codes: B01J 2219/00626 Covalent
• CPC Class Codes: B01J 2219/0063 Other, e.g. van der Waals forces, hydrogen bonding
• CPC Class Codes: B01J 2219/00659 Two-dimensional arrays
• CPC Class Codes: B01J 2219/00677 Ex-situ synthesis followed by deposition on the substrate
• CPC Class Codes: B01J 2219/00707 separated from the reactor apparatus
• CPC Class Codes: B01J 2219/00722 : Nucleotides
• CPC Class Codes: B01J 2219/00725 : Peptides
• CPC Class Codes: B01J 2219/00731 : Saccharides
• CPC Class Codes: B01J 2219/00743 : Cells
• CPC Class Codes: B01L 3/508 : rigid containers not provided for above
• CPC Class Codes: B82Y 30/00 : Nanotechnology for materials or surface science, e.g. nanocomposites
• CPC Class Codes: C12Q 1/6837 : using probe arrays or probe chips C12Q1/6874 takes precedence
• CPC Class Codes: C12Q 2565/518 : characterised by the immobilisation of the nucleic acid sample or target
• CPC Class Codes: C40B 30/04 : by measuring the ability to specifically bind a target molecule, e.g. antibody-antigen binding, receptor-ligand binding
• CPC Class Codes: C40B 40/06 : Libraries containing nucleotides or polynucleotides, or derivatives thereof
• CPC Class Codes: C40B 40/10 : Libraries containing peptides or polypeptides, or derivatives thereof
• CPC Class Codes: C40B 40/12 : Libraries containing saccharides or polysaccharides, or derivatives thereof
• CPC Class Codes: C40B 60/14 : for creating libraries
• CPC Class Codes: G01N 33/6845 : Methods of identifying protein-protein interactions in protein mixtures

Abstract

The present invention is directed to the production of a sample microarray for use in detecting one or more target biopolymers in the sample. The sample microarray of this invention is formed by distributing equivalent amounts of a single sample at discrete, spatially defined locations on a substrate. Each site in the microarray, thus, has the same composition of target biopolymers. The microarray is then interrogated by one or more probes specific for one or more the target biopolymers.

Claims

1. A method for detecting a target biopolymer in a sample, comprising:

(a) preparing a microarray of said sample by dispensing aliquots of said sample at discrete sites onto a substrate and immobilizing said target biopolymer on said substrate, wherein each of said aliquots contains the same amount of said target biopolymer;

(b) contacting said microarray with a probe biopolymer under conditions that allow the formation of a complex comprising said target biopolymer and said probe biopolymer; and

(c) detecting the presence of said complex as a measurement for the presence or the amount of the target biopolymer in said sample.

2. The method of claim 1, wherein the preparation of said microarray further comprises dispensing said sample aliquots on said substrate by a method selected from the group consisting of jet printing, piezoelectric dispensing methods, solenoid dispensing methods, thermal dispensing methods, solid pin contact printing methods, capillary quill contact printing methods, microfluidic-based printing, and silk screening.

3. The method of claim 1, wherein said aliquots comprise picomole amounts of said target biopolymer.

4. The method of claim 1, wherein said aliquots comprise femtomole amounts of said target biopolymer.

5. The method of claim 1, wherein said aliquots comprise attomole amounts of said target biopolymer.

6. The method of claim 1, wherein said aliquots comprise zeptomole amounts of said target biopolymer.

7. The method of claim 1, wherein said target biopolymer or said probe biopolymer is selected from the group consisting of polynucleotides, polypeptides, carbohydrates, and analogs thereof.

8. The method of claim 7, wherein said polynucleotide is selected from the group consisting of amplified DNA, cDNA, single-stranded DNA, double-stranded DNA, PNA, RNA, and mRNA.

9. The method of claim 7, wherein said polypeptide is selected from the group consisting of antibodies, antibody fragments, antigens, ligands, and receptors.

10. The method of claim 1, wherein said target biopolymer is a polynucleotide and said probe biopolymer is a polynucleotide that is complementary to said target polynucleotide.

11. The method of claim 1, wherein said target biopolymer is a receptor and said probe biopolymer is a ligand for said receptor.

12. The method of claim 1, wherein said target biopolymer is an antigen and said probe biopolymer is an antibody specific for said antigen.

13. The method of claim 1, wherein said probe is labeled with a reporter selected from the group consisting of dyes, chemiluminescent compounds, enzymes, fluorescent compounds, metal complexes, magnetic particles, biotin, haptens, radio frequency transmitters, radioluminescent compounds, radioactive-labeled biomolecules, dye-labeled beads, quantum dots, and bar coded particles.

14. The method of claim 1, wherein said substrate is made of crosslinked polymers, porous foam, nitrocellulose, nylon, glass, silica, ceramic, gold, porous metallic materials, non-porous metallic materials, and surface modified materials.

15. The method of claim 14, wherein said crosslinked polymers are selected from the group consisting of polypropylene, polyethylene, polystyrene, and carboxylated polyvinylidene fluoride.

16. The method of claim 14, wherein said surface-modified materials are modified with functional groups selected from the group consisting of acyl fluoride, esters, amino, carboxyl, hydroxyl, epoxide, thiol, and alkanethiols.

17. The method of claim 1, wherein said target biopolymer is immobilized on the substrate by direct adsorption or covalent attachment.

18. The method of claim 1, wherein said support is in the form of foams, filaments, threads, sheets, films, slides, gels, membranes, beads, plates, and planar devices having discrete isolated areas in the form of wells, troughs, pedestals, hydrophobic or hydrophilic patches, die-cut adhesive reservoirs, or other physical barriers to fluid flow.

19. The method of claim 1, wherein the surface of said support is modified to contain hydrophobic and/or hydrophilic regions prior to said dispensing step.

20. The method of claim 1, wherein said substrate is wetted with an organic modifier selected from the group consisting of ethanol, methanol, isopropanol, 2-butanol, acetic acid, dextran sulfate and polyacrylic acid, prior to said dispensing step.

21. The method of claim 1, further comprising co-dispensing an internal standard with said sample to determine the concentration of said target nucleic acid in said aliquots.

22. The method of claim 1, wherein in step (b), said microarray is contacted with a plurality of probes.

23. The method of claim 22, wherein each aliquot is contacted with a different probe.

24. The method of claim 22, wherein said probes are labeled with identical reporter groups.

25. The method of claim 22, wherein said probes are labeled with reporters that are distinguishable from one another.

26. The method of claim 1, wherein in step (b), each of said aliquots is contacted with a plurality of probes.

27. The method of claim 26, wherein said probes are labeled with reporters that are distinguishable from one another.

28. The method of claim 1, wherein said aliquots are deposited onto said substrate at about 1 to 1536 sites per square millimeter of the substrate surface area.

29. The method of claim 1, wherein said substrate is a multiple well microplate, and said aliquots are deposited at between 1 to 1536 sites per well of said microplate.

30. A method for detecting a target nucleic acid in a sample, comprising:

(a) preparing a microarray of said sample by dispensing aliquots of said sample at discrete sites onto a substrate and immobilizing said target nucleic acid on said substrate, wherein each of said aliquots contains the same amount of said target nucleic acid;

(b) contacting said microarray with a labeled nucleic acid probe under hybridizing conditions that allow the formation of a complex between said target nucleic acid and said probe, wherein said probe is a nucleic acid that is substantially complementary to said target nucleic acid; and

(c) detecting the presence of said complex as a measurement for the presence or the amount of said target nucleic acid in said sample.

31. The method of claim 30, wherein the preparation of said microarray further comprises dispensing said sample aliquots on said substrate by a method selected from the group consisting of jet printing, piezoelectric dispensing methods, solenoid dispensing methods, thermal dispensing methods, solid pin contact printing methods, capillary quill contact printing methods, microfluidic-based printing, and silk screening.

32. The method of claim 30, wherein said aliquots comprise picomole amounts of said target nucleic acid.

33. The method of claim 30, wherein said aliquots comprise picomole amounts of said target nucleic acid.

34. The method of claim 30, wherein said aliquots comprise femtomole amounts of said target nucleic acid.

35. The method of claim 30, wherein said aliquots comprise attomole amounts of said target nucleic acid.

36. The method of claim 30, wherein said aliquots comprise zeptomole amounts of said target nucleic acid.

37. The method of claim 30, wherein said target nucleic acid is selected from the group consisting of single-stranded RNA, mRNA, single-stranded DNA, double-stranded DNA, amplified DNA, cDNA and PNA.

38. The method of claim 30, wherein said labeled probe is selected from the group consisting of single-stranded RNA, mRNA, single-stranded DNA, double-stranded DNA, amplified DNA, cDNA, and PNA.

39. The method of claim 30, wherein said probe is labeled with a reporter selected from the group consisting of dyes, chemiluminescent compounds, enzymes, fluorescent compounds, metal complexes, magnetic particles, biotin, haptens, radio frequency transmitters, radioluminescent compounds, radioactive-labeled biomolecules, dye-labeled beads, quantum dots, and bar coded particles.

40. The method of claim 30, wherein said substrate is made of crosslinked polymers, porous foam, nitrocellulose, nylon, glass, silica, ceramic, gold, porous metallic materials, non-porous metallic materials, and surface-modified materials.

41. The method of claim 40, wherein said crosslinked polymers are selected from the group consisting of polypropylene, polyethylene, polystyrene, and carboxylated polyvinylidene fluoride.

42. The method of claim 40, wherein said surface-modified materials are modified with functional groups selected from the group consisting of acyl fluoride, esters, amino, carboxyl, hydroxyl, epoxide, thiol, and alkanethiols.

43. The method of claim 30, wherein said substrate is wetted with an organic modifier selected from the group consisting of ethanol, methanol, isopropanol, 2-butanol, acetic acid, dextran sulfate and polyacrylic acid, prior to said dispensing step.

44. The method of claim 30, further comprising co-dispensing an internal standard with said sample to determine the concentration of said target nucleic acid in said aliquots.

45. The method of claim 30, wherein in step (b), the microarray is contacted with a plurality of probes.

46. The method of claim 45, wherein each aliquot is contacted with a different probe.

47. The method of claim 45, wherein each probe is labeled with an identical reporter.

48. The method of claim 45, wherein said probes are labeled with reporters which are distinguishable from one another.

49. The method of claim 30, wherein each of said aliquots is contacted with a plurality of probes.

50. The method of claim 49, wherein said probes are labeled with reporters which are distinguishable from one another.

51. The method of claim 30, wherein said aliquots are deposited onto said substrate at about 1 to 1536 sites per square millimeter of the substrate surface area.

52. The method of claim 30, wherein said substrate is a multiple well microplate, and said aliquots are deposited at between 1 to 1536 sites per well of said microplate.

53. A method for identifying one or more target analytes in a sample, comprising:

(a) preparing a microarray of said sample by dispensing aliquots of said sample at discrete sites onto a substrate and immobilizing said analytes on said substrate, wherein each of said aliquots contains the same amount of said target analytes;

(b) contacting said microarray with a plurality of labeled probes specific for each of said target analytes under conditions that allow formation of a complex between each of said target analytes and said labeled probe specific for said target analyte; and

(c) detecting said complexes as a measurement of the presence or the amount of said target analytes.

54. The method of claim 53, wherein the preparation of said microarray further comprises dispensing said sample aliquots on said substrate by a method selected from the group consisting of jet printing, piezoelectric dispensing methods, solenoid dispensing methods, thermal dispensing methods, solid pin contact printing methods, capillary quill contact printing methods, microfluidic-based printing, and silk screening.

55. The method of claim 53, wherein said analyte is selected from the group consisting of biopolymers, drugs, small organic molecules, nucleic acids, proteins, receptors, antigens, carbohydrates, cells, cellular fragments, and tissues.

56. The method of claim 53, wherein said probe is selected from the group consisting of nucleic acids, antibodies, antibody fragments, ligands, and carbohydrates.

57. The method of claim 53, wherein said label is selected from the group consisting of dyes, chemiluminescent compounds, enzymes, fluorescent compounds, metal complexes, magnetic particles, biotin, haptens, radio frequency transmitters, radioluminescent compounds, radioactive-labeled biomolecules, dye-labeled beads, quantum dots, and bar coded particles.

58. The method of claim 53, wherein said aliquots comprise picomole amounts of said analyte.

59. The method of claim 53, wherein said aliquots comprise femtomole amounts of said analyte.

60. The method of claim 53, wherein said aliquots comprise attomole amounts of said analyte.

61. The method of claim 53, wherein said aliquots comprise zeptomole amounts of said analyte.

62. The method of claim 53, wherein said substrate is made of crosslinked polymers, porous foam, nitrocellulose, nylon, glass, silica, ceramic, gold, porous metallic materials, non-porous metallic materials, and surface-modified materials.

63. The method of claim 53, wherein said surface-modified materials are modified with functional groups selected from the group consisting of acyl fluoride, esters, amino, carboxyl, hydroxyl, epoxide, thiol, and alkanethiols.

64. The method of claim 53, wherein the surface of said support is modified to contain hydrophobic and/or hydrophilic regions prior to said dispensing step.

65. The method of claim 53, wherein said substrate wetted with an organic modifier selected from the group consisting of ethanol, methanol, isopropanol, 2-butanol, acetic acid, dextran sulfate and polyacrylic acid, prior to said dispensing step.

66. The method of claim 53, further comprising co-dispensing an internal standard with said sample to determine the concentration of said analytes in said aliquots.

67. The method of claim 53, wherein each aliquot is contacted with a different probe.

68. The method of claim 67, wherein each probe is labeled with an identical reporter.

69. The method of claim 67, wherein each probe is labeled with a different reporter.

70. The method of claim 53, wherein each aliquot is contacted with a plurality of probes.

71. The method of claim 53, wherein said aliquots are deposited onto said substrate at about 1 to 1536 sites per square millimeter of the substrate surface area.

72. The method of claim 53, wherein said substrate is a multiple well microplate, and said aliquots are deposited at between 1 to 1536 sites per well of said microplate.