Device, method, and kit for gene detection

• US 20060051756A1
• Filed: 04/22/2003
• Published: 03/09/2006
• Est. Priority Date: 04/22/2002
• Status: Abandoned Application

• Current Assignee: Hokuto Scientific Industry Co., Ltd
• Original Assignee: Hokuto Scientific Industry Co., Ltd
• Inventors: Tamiya, Eiichi, Kobayyashi, Masaaki, Nagashio, Ichiro
• Application Number:
  US10/512,219
• Publication Number:
  US 20060051756A1
• Time in Patent Office: Days
• US Class Current: 435/6
• CPC Class Codes: B01L 2300/042 Caps; Plugs
• CPC Class Codes: B01L 2300/047 Additional chamber, reservoir
• CPC Class Codes: B01L 2300/087 Multiple sequential chambers
• CPC Class Codes: B01L 2400/0683 mechanically breaking a wall or membrane within a channel or chamber
• CPC Class Codes: B01L 3/502 with fluid transport, e.g. in multi-compartment structures centrifugal-type cuvettes G01N21/07; analysis by separation into components G01N30/00; automatic analysers G01N35/00
• CPC Class Codes: B01L 3/50825 Closing or opening means, corks, bungs closures for containers B65D; means for removing stoppers B67B7/02

Abstract

A gene detection tool comprising a sealable reaction chamber and a sealable detection chamber and a partition member positioned between the reaction chamber and the detection chamber that separates the reaction chamber and the detection chamber. The partition member is capable of unsealing; the reaction chamber is comprised of at least two members capable of forming a sealed reaction chamber by mutually fitting an opening means provided therein; and the detection chamber or reaction chamber comprises a gene detection element. A gene detection method in which a gene amplification operation and a gene detection operation are conducted in a sealed state using a gene detection device comprising a sealable reaction chamber and a sealable detection chamber, having a partition member which is positioned between the reaction chamber and the detection chamber and which separates the reaction chamber from the detection chamber, with test sample and gene amplification reaction solution being packed in said reaction chamber and a gene-binding agent capable of binding with a gene and generating a detectable signal being packed in said detection chamber. (1) At least the reaction chamber is imparted with conditions capable of amplifying the gene to be detected; (2) following the operation of (1), the partition member is unsealed while maintaining the gene detection tool in a sealed state; (3) through a passage created in the partition member by the unsealing, the solution in the reaction chamber is brought into contact with the gene-binding agent capable of binding the gene in the detection chamber and generating a detectable signal; and (4) the signal obtained is detected. A gene detection kit comprising the gene detection tool, a gene amplification reaction solution or gene amplification reagent, and a gene-binding agent capable of binding a gene and generating a detectable signal.

Claims

1. A gene detection tool comprising a sealable reaction chamber and a sealable detection chamber and a partition member positioned between the reaction chamber and the detection chamber that separates the reaction chamber and the detection chamber, wherein

the partition member is capable of unsealing;

the reaction chamber is comprised of at least two members capable of forming a sealed reaction chamber by mutually fitting an opening means provided therein; and

the detection chamber or reaction chamber comprises a gene detection element.

2. The gene detection tool according to claim 1, wherein the partition member comprises a groove-shaped notch in a portion of the surface thereof;

and at least the reaction chamber and the detection chamber adjacent to the partition member are formed of a flexible material, thereby the operation of applying pressure to the tool from the exterior ruptures at least a portion of the notch, unsealing the partition member.

3. The gene detection tool according to claim 1 or 2, wherein the reaction chamber is comprised of a cylindrical member one end of which communicates with the detection chamber and is sealed off by the partition member and the other end of which is comprised of an opening means, and a cylindrical member having a bottom, one end of which is closed and the other end of which is an opening means;

and these two opening means fit together to seal off the reaction chamber.

4. The gene detection tool according to claim 3, wherein the reaction chamber has a gene detection member on the end that is closed off by the cylindrical member having a bottom.

5. The gene detection tool according to any one of claims 1 to 3, wherein the detection chamber is comprised of a cylindrical member, one end of which communicates with the reaction chamber and is sealed off by the partition member and the other end of which is comprised of an opening means;

and a tightly fitting cover comprising a gene detection member is provided in the opening means.

6. The gene detection tool according to any one of claims 1 to 5, wherein the reaction chamber is one in which test sample and gene amplification reaction solution is packed.

7. The gene detection tool according to any one of claims 1 to 6, wherein the detection chamber is one in which a gene-binding agent that binds genes and generates a detectable signal is packed.

8. The gene detection tool according to claim 7, wherein unsealing of the partition member creates a passage for mixing the test sample and gene amplification reaction solution in the reaction chamber with the gene-binding agent that binds genes and generates a detectable signal in the detection chamber.

9. The gene detection tool according to any one of claims 1 to 8, wherein the gene detection member is an electrochemical detection member or a fluorescence-detecting member.

19. A gene detection kit comprising the gene detection tool according to any one of claims 1 to 11, a gene amplification reaction solution or gene amplification reagent, and a gene-binding agent capable of binding a gene and generating a detectable signal.

20. The gene detection kit according to claim 19, wherein the kit further comprises a means of purifying genes.

10. A gene detection tool comprising a mutually independent sealable reaction chamber and detection chamber, and a partition member positioned between the reaction chamber and the detection chamber that seals off the reaction chamber and detection chamber from each other, and is characterized in that:

(a) the reaction chamber comprises an opening means permitting the insertion of a test sample potentially containing a gene to be detected and a gene amplification reaction solution;

(b) the detection chamber comprises an opening means permitting the insertion of a gene-binding agent that binds a gene and generates a detectable signal;

(c) the partition member is capable of unsealing by an operation from the exterior while maintaining the overall sealed state of the gene detection tool comprising the reaction chamber and detection chamber; and

(d) when the partition member is unsealed, the passage generated by this unsealing allows the solution in the reaction chamber to move into the detection chamber.

11. The gene detection tool according to any one of claims 7 to 10, wherein the gene-binding agent is selected from among the group consisting of:

(a) electrochemically active agents capable of specifically binding genes;

(b) fluorescent dyes capable of specifically binding genes; and

(c) probes having a region capable of sequence-specifically binding a gene to be detected and pairs of fluorescent groups and quenching groups, incapable of generating fluorescence prior to binding the gene to be detected but capable of generating fluorescence once bound to the gene to be detected.

12. A gene detection method in which a gene amplification operation and a gene detection operation are conducted in a sealed state using a gene detection device comprising a sealable reaction chamber and a sealable detection chamber, having a partition member which is positioned between the reaction chamber and the detection chamber and which separates the reaction chamber from the detection chamber, with test sample and gene amplification reaction solution being packed in said reaction chamber and a gene-binding agent capable of binding with a gene and generating a detectable signal being packed in said detection chamber, wherein:

(1) at least the reaction chamber is imparted with conditions capable of amplifying the gene to be detected;

(2) following the operation of (1), the partition member is unsealed while maintaining the gene detection tool in a sealed state;

(3) through a passage created in the partition member by the unsealing, the solution in the reaction chamber is brought into contact with the gene-binding agent capable of binding the gene in the detection chamber and generating a detectable signal; and

(4) the signal obtained is detected.

13. The gene detection method according to claim 12, wherein the gene-binding agent is selected from among the group consisting of:

(a) electrochemically active agents capable of specifically binding genes;

(b) fluorescent dyes capable of specifically binding genes; and

(c) probes having a region capable of sequence-specifically binding a gene to be detected and pairs of fluorescent groups and quenching groups, incapable of generating fluorescence prior to binding the gene to be detected but capable of generating fluorescence once bound to the gene to be detected.

14. The gene detection method according to claim 12, wherein the detection of signal is electrochemical detection or fluorescent detection.

15. The gene detection method according to any one of claims 12 to 14, wherein the gene amplification reaction solution is prepacked into the reaction chamber and the test sample is inserted into the reaction chamber prior to the operation of (1).

16. The gene detection method according to any one of claims 12 to 15, wherein the reaction chamber has an opening means, the test sample and/or gene amplification reaction solution is inserted into the reaction chamber through the opening means, and following insertion, the opening means is closed to seal the reaction chamber.

17. The gene detection method according to any one of claims 12 to 16, wherein the gene-binding agent that binds a gene and generates a detectable signal is packed in the detection chamber.

18. A gene detection method characterized by comprising the steps of:

(1) inserting a test sample potentially containing the gene to be detected and the gene amplification reaction solution through an opening means into the reaction chamber and then closing the opening means to seal the reaction chamber;

(2) imparting conditions permitting amplification of the gene to be detected to the interior of the reaction chamber;

(3) following the elapse of a period of time adequate for amplification of the gene to be detected and while maintaining the gene detection tool comprising the reaction chamber and detection chamber in an overall sealed state, unsealing by an external operation the partition member that is positioned between the reaction chamber and the detection chamber and seals off the reaction chamber from the detection chamber;

(4) causing the reaction solution in the reaction chamber to move into the detection chamber through a passage created by the unsealing;

(5) contacting the gene-binding agent that binds a gene and generates a detectable signal with the reaction solution in the detection chamber; and

(6) detecting the signal obtained.