Biomarkers for the diagnosis and treatment of pancreatic cancer
Compositions and methods for use in methods and kits for the detection of an increased risk of pancreatic cancer are provided. Cyst fluid samples isolated from patients that are positive for at least three of the following markers, mucin 1, mucin 2, mucin 5AC, mucin 5B, mucin 6, CEA CAM 1, CEACAM 5, CEACAM 6, CEACAM 7, CEACAM 8, S100-A6, S100-A8, S100-A9 and S100-A11 indicate that such patients are at greater risk for development of pancreatic cancer when compared to cyst fluid samples isolated from patients lacking these markers.
1. A method of diagnosing an increased risk for the development of pancreatic cancer in a human test subject, said method comprising:
a) obtaining a pancreatic cyst fluid specimen from a human test subject;
b) analyzing said fluid specimen for the presence of at least three biomarkers for pancreatic carcinoma identifiable in said cyst fluid sample via mass spectroscopy, said presence being indicative of an increased risk for pancreatic cancer, said biomarkers being selected from the group consisting of mucin 1, mucin 2, mucin 5AC, mucin 5B, mucin 6, CEA CAM 1, CEACAM 5, CEACAM 6, CEACAM 7, CEACAM 8, S100-A6, S100-A8, S100-A9 and S100-A11, and
c) diagnosing said patient as being at increased risk based on the presence of said markers in said sample.
2. The method claim 1 , wherein said biomarkers comprise at least three mucins.
3. The method of claim 1 , wherein said biomarkers comprise at least two mucins and at least two CEACAMs.
4. The method of claim 2 or 3 further comprising detection of at least one biomarker selected from the group consisting of S100-A6, S100-A8, S100-A9 and S100-A11.
5. The method of claim 1 wherein said diagnosis differentiates a malignant tumor from a benign tumor.
6. The method of claim 1 wherein said diagnosis is an adjunct to a primary diagnostic test for carcinoma of the pancreas.
7. The method of claim 1 , wherein three biomarkers are detected, said markers being Mucin 5B, CEACAM 5 and CEACAM 6.
8. A kit for practicing the method of claim 1 , comprising reagents suitable for detecting the presence or absence of said at least three biomarkers in said cyst fluid.
9. A kit as claimed in claim 8 , comprising a solid support and reagents effective for assessing immune complex formation between said biomarkers and antibodies immunospecific for said biomarkers affixed to said solid support.