Specific microarrays for breast cancer screening
First Claim
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1. A microarray comprising a plurality of oligonucleotide probes immobilized on a surface of a solid support, wherein a) each different oligonucleotide probe is localized in a predetermined region of said surface;
- and b) said each oligonucleotide probe selectively hybridizes to an mRNA or a nucleic acid derived therefrom, wherein said mRNA is a transcript of a gene, wherein changes in expression levels of said gene are associated with breast cancer.
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Abstract
Microarrays specific for breast cancer are provided. Also provided are methods for detecting breast cancer in patients or screening therapeutics for the treatment or prevention of breast cancer by analyzing expression levels of specific genes in BECs or quantifying specific protein levels in breast ductal fluid.
35 Citations
27 Claims
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1. A microarray comprising a plurality of oligonucleotide probes immobilized on a surface of a solid support, wherein
a) each different oligonucleotide probe is localized in a predetermined region of said surface; - and
b) said each oligonucleotide probe selectively hybridizes to an mRNA or a nucleic acid derived therefrom, wherein said mRNA is a transcript of a gene, wherein changes in expression levels of said gene are associated with breast cancer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A microarray comprising a plurality of protein-capture agents immobilized on a surface of a solid support, wherein
a) each different protein-capture agent is localized in a predetermined region of said surface; - and
b) said each protein-capture agent selectively hybridizes to a protein, wherein changes in quantities of said protein is associated with breast cancer. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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22. A method for identifying proteins associated with breast cancer comprising:
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a) obtaining a sample from mammary ductal fluid of a patient having breast cancer;
b) providing a proteinchip array having a selectivity condition, wherein the selectivity condition is defined by an adsorbent and an eluant;
c) contacting said sample to said proteinchip array;
d) washing said proteinchip array with said eluant; and
e) detecting and quantifying proteins retained by said proteinchip array by a laser desorption/ionization time-of-flight mass spectrometer, wherein one or more said proteins differentially present on said proteinchip array compared to that from a non-cancer subject are identified as the proteins associated with breast cancer. - View Dependent Claims (23)
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24. A method for detecting breast cancer in a patient comprising:
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a) obtaining a sample from mammary ductal fluid of said patient, wherein said sample comprises at least one breast cancer related protein;
b) providing a proteinchip array having a selectivity condition, wherein the selectivity condition is defined by an adsorbent and an eluant, wherein the selectivity condition allows said at least one breast cancer related protein be retained by said proteinchip array;
c) contacting said sample to said proteinchip array;
d) washing said proteinchip array with said eluant;
e) detecting and quantifying said at least one breast cancer related protein retained by said proteinchip array by a laser desorption/ionization time-of-flight mass spectrometer; and
f) determining differences in quantities of said at least one breast cancer related protein retained by said proteinchip array compared to that from a non-cancer patient, wherein any differences in quantities indicate breast cancer in said patient. - View Dependent Claims (25)
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26. A method for determining efficacy of a therapeutic in treating or preventing breast cancer comprising:
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a) administering an appropriate amount of said therapeutic to a patient having breast cancer;
b) obtaining a sample from mammary ductal fluid of said patient, wherein said sample comprises at least one breast cancer related protein;
c) providing a proteinchip array having a selectivity condition, wherein the selectivity condition is defined by an adsorbent and an eluant, wherein the selectivity condition allows said at least one breast cancer related protein be retained by said proteinchip array;
d) contacting said sample to said proteinchip array;
e) washing said proteinchip array with said eluant;
f) detecting and quantifying said at least one breast cancer related protein retained by said proteinchip array by a laser desorption/ionization time-of-flight mass spectrometer; and
g) detecting differences in quantities of said at least one breast cancer related protein retained by said proteinchip array compared to that prior to the administration of said therapeutic, wherein any differences in quantities indicate the efficacy of said therapeutic. - View Dependent Claims (27)
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Specification