System and method for cytological analysis by raman spectroscopic imaging

• US 20070178067A1
• Filed: 11/09/2006
• Published: 08/02/2007
• Est. Priority Date: 11/09/2005
• Status: Abandoned Application

• Current Assignee: Chemimage Corporation
• Original Assignee: Chemimage Corporation
• Inventors: Maier, John, Cohen, Jeffrey, Demuth, Joseph, McClelland, Lindy, Stewart, Shona
• Application Number:
  US11/598,248
• Publication Number:
  US 20070178067A1
• Time in Patent Office: Days
• US Class Current: 424/93.200
• CPC Class Codes: G01N 15/1459 the analysis being performed on a sample stream
• CPC Class Codes: G01N 2021/656 Raman microprobe
• CPC Class Codes: G01N 21/65 Raman scattering
• CPC Class Codes: G01N 33/5005 involving human or animal cells immunoassay G01N33/56966; immunoassays of protozoa G01N33/56905; protozoa in screening assays C12Q1/025
• CPC Class Codes: G01N 33/574 for cancer
• CPC Class Codes: G01N 33/57407 Specifically defined cancers

Abstract

A method and system of differentially manipulating cells where the cells, suspended in a fluid, are irradiated with substantially monochromatic light. A Raman data set is obtained from the irradiated cells and where the data set is characteristic of a disease status. The data set is assessed to identify diseased cells. A Raman chemical image of the irradiated cells is also obtained. Based on the assessment and the Raman chemical image, the fluid in which the cells are suspended is differentially manipulated. The diseased cells are directed to a first location and other non-diseased cells are directed to a second location as part of the differential manipulation. The diseased cells may be treated with a physical stress, a chemical stress, and a biological stress and then returned to a patient from whom the diseased cells were obtained prior to the irradiation.

Claims

1. A method comprising:

irradiating cells suspended in a fluid with substantially monochromatic light;

assessing a Raman data set obtained from said irradiated cells and characteristic of a disease status thereof to identify diseased cells;

obtaining a Raman chemical image of said irradiated cells; and

differentially manipulating the fluid in which the cells are suspended based on the assessment and said Raman chemical image, wherein said diseased cells are directed to a first location and other non-diseased cells are directed to a second location as part of said differential manipulation.

2. The method of claim 1, further comprising:

suspending the cells in independently manipulable aliquots of the fluid.

3. The method of claim 2, further comprising:

handling the fluid using a flow cytometer.

4. The method of claim 3, wherein the flow cytometer includes a detector for detecting the Raman chemical image.

5. The method of claim 1, further comprising:

killing the diseased cells.

6. The method of claim 1, further comprising:

contacting the diseased cells with a pharmaceutical agent.

7. The method of claim 1, further comprising:

contacting the diseased cells with a label.

8. The method of claim 1, further comprising:

contacting the diseased cells with a cytotoxic agent.

9. The method of claim 1, further comprising:

contacting the diseased cells with an expressible vector.

10. The method of claim 1, wherein the cells are selected from the group consisting of breast cells, ovary cells, kidney cells, prostate cells, lung cells, colon cells, bone marrow cells, brain cells, red blood cells, and cardiac muscle cells.

11. The method of claim 1, wherein the fluid is serum.

12. The method of claim 1, wherein the fluid is an exogenous fluid contacted with a tissue of a patient.

13. The method of claim 1, wherein the diseased cells are cancer cells.

14. A system comprising:

a monochromatic illumination source;

a spectroscopic device;

an imaging device;

a fluid manipulating device;

a machine readable program code containing executable program instructions; and

a processor operatively coupled to said monochromatic illumination source, said spectroscopic device, said imaging device and said fluid manipulating device and configured to execute said machine readable program code so as to perform the following;

configure said monochromatic illumination source to irradiate cells suspended in a fluid with substantially monochromatic light;

configure said spectroscopic device to obtain a Raman data set from said irradiated cells, wherein said Raman data set characterizes a disease status of said irradiated cells;

assess said Raman data set obtained by said spectroscopic device so as to identify diseased cells;

configure said imaging device to obtain a Raman chemical image of said irradiated cells; and

configure said fluid manipulating device to differentially manipulate the fluid in which the cells are suspended based on the assessment and said Raman chemical image, wherein said fluid manipulating device is further configured to direct said diseased cells to a first location and other non-diseased cells to a second location as part of said differential manipulation.

15. The system of claim 14, wherein said fluid manipulating device comprises a flow cytometer.

16. The system of claim 15, wherein the flow cytometer comprises a detector for detecting the Raman chemical image.

17. A system comprising:

means to irradiate cells suspended in a fluid with substantially monochromatic light;

means to obtain a Raman data set from said irradiated cells, wherein said Raman data set characterizes a disease status of said irradiated cells;

means to assess said Raman data set obtained by said spectroscopic device so as to identify diseased cells;

means to obtain a Raman chemical image of said irradiated cells;

means to differentially manipulate the fluid in which the cells are suspended based on the assessment and said Raman chemical image; and

means to direct said diseased cells to a first location and other non-diseased cells to a second location as part of said differential manipulation.

18. A storage medium containing machine readable program code, which, when executed by a processor, causes said processor to perform the following:

configure a monochromatic illumination source to irradiate cells suspended in a fluid with substantially monochromatic light;

configure a spectroscopic device to obtain a Raman data set from said irradiated cells, wherein said Raman data set characterizes a disease status of said irradiated cells;

assess said Raman data set obtained by said spectroscopic device so as to identify diseased cells;

configure an imaging device to obtain a Raman chemical image of said irradiated cells; and

configure a fluid manipulating device to differentially manipulate the fluid in which the cells are suspended based on the assessment and said Raman chemical image; and

further configure said fluid manipulating device to direct said diseased cells to a first location and other non-diseased cells to a second location as part of said differential manipulation.

19. A method comprising:

irradiating cells suspended in a fluid with substantially monochromatic light;

assessing a Raman data set obtained from said irradiated cells and characteristic of a disease status thereof to identify diseased cells;

differentially manipulating the fluid in which the cells are suspended based on the assessment, wherein said diseased cells are directed to a first location and other non-diseased cells are directed to a second location as part of said differential manipulation; and

treating the diseased cells with one or more of the following stresses;

a physical stress, a chemical stress, and a biological stress.

20. The method of claim 19, further comprising:

returning the treated cells to a patient from whom the diseased cells were obtained prior to the irradiation.