Detection and diagnosis of smoking related cancers
View Patent ↗Gene probes for specific regions of chromosome 3 (3p21.3) and chromosome 10 (10q22) have been found to be tools for the diagnosis and prognosis of smoking related cancers such as non-small cell lung cancer (NSCLC). For example, these probes can be used with fluorescence in situ hybridization (FISH), and used to stratify smokers into high and low risk groups, as well as determine a patients susceptibility to the development of smoking related cancers.
1. A method for identifying a subject at risk for the development, recurrence, or metastasis of non-small cell lung cancer comprising:
(a) obtaining a lung test sample from a human subject;
(b) providing a 10q22 DNA probe;
(c) contacting said probe with said test sample;
(d) analyzing DNA from said test sample;
(e) detecting a loss of heterozygosity in the hybridization of said probe to said DNA, as compared to a centromeric DNA probe for chromosome 10; and
(f) identifying the subject at risk for the development, recurrence, or metastasis of non-small cell lung cancer when loss of heterozygosity is detected.
2. The method of claim 1 , wherein said lung test sample comprises a surgical or biopsy specimen, a paraffin embedded tissue, a frozen tissue imprint, a sputum sample, a bronchiolar alveolar lavage sample, or a fine needle aspiration sample.
3. The method of claim 1 , wherein said subject is a smoker.
4. The method of claim 1 , wherein said subject is a non-smoker.
5. The method of claim 1 , wherein said subject is a former smoker.
6. The method of claim 1 , wherein said test sample comes from said subject who has not previously been diagnosed with cancer.
7. The method of claim 1 , wherein said probe is labeled with a fluorophore.
8. The method of claim 1 , wherein said probe is labeled with digoxigenin.
9. The method of claim 1 , wherein said probe size is from 1000 to 2000 base pairs.
10. The method in claim 1 , further comprising a spiral CT-scan.
11. The method of claim 1 , wherein said method further comprises identifying a subject in need of an intensive follow-up protocol.
12. The method of claim 1 , wherein said method further comprises identifying a subject that is suitable for novel investigational therapeutic approaches.
13. The method of claim 1 , wherein said centromeric probe is labeled with a fluorophore.
14. The method of claim 13 wherein said centromeric probe is labeled with spectrum orange.
15. The method of claim 1 , wherein said centromeric probe is a chromosome 10 stable marker.
16. The method of claim 15 , wherein said centromeric probe is Centromere 10 (CEP10).
17. The method of claim 1 , wherein analyzing comprises using FISH.
18. The method of claim 1 , wherein said cancer is a tobacco related cancer.
19. A method for predicting the progression or metastasis of non-small cell carcinoma in a subject comprising:
(a) obtaining a lung test sample from a human subject;
(b) providing a 10q22 DNA probe;
(c) contacting said probe with said test sample;
(d) analyzing DNA from said test sample;
(e) detecting a loss of heterozygosity in the hybridization of said probe to said DNA, as compared to a centromeric DNA probe for chromosome 10; and
(f) predicting the development, recurrence, or metastasis of non-small cell carcinoma in the subject.
20. A method for identifying a subject at risk for the development, recurrence, or metastasis of non-small cell lung cancer comprising:
(a) obtaining a test sample from a human subject;
(b) providing a 10q22 DNA probe;
(c) contacting said probe with said test sample;
(d) analyzing DNA from said test sample;
(e) detecting a loss of heterozygosity in the hybridization of said probe to said DNA, as compared to a centromeric DNA probe for chromosome 10; and
(f) identifying the subject at risk for the development, recurrence, or metastasis of non-small cell lung cancer when loss of heterozygosity is detected.
21. The method of claim 20 , wherein said test sample comprises a surgical or biopsy specimen, a paraffin embedded tissue, a frozen tissue imprint, a sputum, a bronchiolar alveolar lavage, a peripheral blood lymphocytes, a fine needle aspiration, or a buccal smear.