Biological sample preparation for testing

Patent metadata

Field	Value
Publication number	US-10371604-B2
Application number	US-201615233801-A
Country	US
Kind code	B2
Filing date	Aug 10, 2016
Priority date	Aug 10, 2015
Publication date	Aug 6, 2019
Grant date	Aug 6, 2019

Abstract

In one embodiment, a method for processing a sample includes selecting a selected sample from a biological specimen, the selected sample being in contact with a first surface of a first substrate. The method also includes transferring the selected sample directly from the first surface to a container comprising an internal volume. The method also includes forming or providing a sample solution within the internal volume of the container by contacting the selected sample with a lysis mixture using a protocol. The method further includes performing an assay, experiment, or test on the sample solution while the sample solution disposed is within the internal volume of the container.
In another embodiment, a method for processing a sample includes providing a selected sample comprising one or more cells. The method also includes transferring the selected sample into an internal volume of a container. The method also includes contacting the selected sample with a lysis mixture using a protocol to provide a sample solution, wherein the protocol comprises heating the sample solution to a first temperature that is greater than 37 degrees Celsius and less than or equal to 75 degrees Celsius.

First claim

What is claimed is:

1. A method for processing a sample containing one or more nucleic acids, comprising:
selecting a sample from a biological specimen or heterogeneous mixture of biological cells using an optical system, wherein the selected sample is in contact with a first surface of a first substrate and the biological specimen or heterogeneous mixture of biological cells is in contact with a second substrate comprising a second surface;
moving the first substrate away from the second surface such that the selected sample maintains contact with the first surface and the selected sample does not maintain contact with the second surface;
attaching the first substrate to a container such that the selected sample is disposed within an internal volume of the container; and
forming a sample solution within the internal volume of the container by contacting the selected sample with a lysis mixture using a protocol.

2. The method according to claim 1 , wherein the optical system comprises is a microscope.

3. The method according to claim 1 , wherein the optical system comprises a laser capture microdissection apparatus.

4. The method according to claim 1 , wherein transferring the selected sample comprises:
levitating the selected sample into the container; or
using gravity to move the selected sample from the first substrate to the container.

5. The method according to claim 1 , further comprising detaching the first substrate from the container.

6. The method according to claim 1 , wherein the first substrate comprises one or more of a laser capture microdissection cap (LCM cap), a sample carrier, or an extraction device.

7. The method according to claim 1 , wherein the container comprises a container cap and transferring the selected sample comprises transferring the selected sample from the first substrate to the container cap.

8. The method according to claim 1 , wherein the container comprises a well or vial of a microtiter plate and the first substrate is attached to the well or vial to form the internal volume.

9. The method of claim 8 , further comprising a plurality of additional substrates that are geometrically similar or equivalent to the first substrate, wherein each of the substrates is attached to one of the wells of the microtiter plate.

10. The method of claim 8 , wherein the microtiter plate comprises 96 wells.

11. The method according to claim 1 , wherein the container is a first container, the method further comprising attaching the first substrate to the first container to provide a first closed container.

12. The method according to claim 11 , further comprising at least one of placing the first closed container on a holder and/or placing the first closed container in an incubator.

13. The method of claim 12 , further comprising a plurality of additional closed containers, each additional closed container comprising an additional substrate and an additional container that are geometrically similar or equivalent to the first substrate and the first container, wherein the first closed container and the additional closed containers are together placed on the holder and/or placed in the incubator.

14. The method according to claim 1 , wherein the protocol comprises heating the sample solution to a first temperature that is greater than 37 degrees Celsius and less than or equal to 75 degrees Celsius.

15. The method according to claim 1 , wherein the protocol comprises heating the sample solution to a first temperature that is greater than or equal to 45 degrees Celsius and less than or equal to 75 degrees Celsius.

16. The method according to claim 1 , further comprising performing an assay, experiment, or test on the sample containing one or more nucleic acids.

17. The method according to claim 16 , wherein the assay, experiment, or test on the sample containing one or more nucleic acids is performed without filtration, purification, or pipetting of the sample solution.

18. The method according to claim 16 , wherein performing an assay, experiment, or test on the sample containing one or more nucleic acids comprises sequencing the one or more nucleic acids.

19. The method according to claim 16 , wherein performing an assay, experiment, or test on the sample containing one or more nucleic acids includes performing a polymerase chain reaction (PCR) assay, experiment or test on one or more nucleic acids.

Assignees

• Life Technologies Corp

Inventors

• Rath Mousumi
• Shannon Mark
• La Jason

Classifications

• G01N2001/2886

  Laser cutting, e.g. tissue catapult · CPC title

• G01N1/34

  Purifying; Cleaning {(processes or apparatus for extracting or separating nucleic acids from biological samples C12N15/1003)} · CPC title

• B01L3/50825

  Closing or opening means, corks, bungs · CPC title

• C12Q1/6806 Primary

  Preparing nucleic acids for analysis, e.g. for polymerase chain reaction [PCR] assay (C12Q1/6804 takes precedence) · CPC title

• G01N2001/045

  Laser ablation; Microwave vaporisation · CPC title