Investigation of tissue inhibitor of metalloproteinases 1 in plasma from colorectal cancer patients and blood donors by surface-enhanced laser desorption/ionization time-of-flight mass spectrometryscopy

2007 ◽  
Vol 22 (2) ◽  
pp. 89-94 ◽  
Author(s):  
M.B. Caspersen ◽  
N.M. Sorensen ◽  
A.S. Schrohl ◽  
P. Iversen ◽  
H.J. Nielsen ◽  
...  
2007 ◽  
Vol 22 (2) ◽  
pp. 89-94 ◽  
Author(s):  
M.B. Caspersen ◽  
N.M. Sørensen ◽  
A.S. Schrohl ◽  
P. Iversen ◽  
H.J. Nielsen ◽  
...  

Early detection of colorectal cancer (CRC) improves patient survival. Plasma tissue inhibitor of metalloproteinases 1 (TIMP-1) measurements by enzyme-linked immunosorbent assay (ELISA) have been suggested as a new method for the early detection of CRC. To further investigate the nature of TIMP-1 in plasma, surface-enhanced laser desorption/ionization time-of-flight mass spectrometry (SELDI TOF MS) was used. TIMP-1 measurements of plasma from 16 healthy donors and 14 CRC patients were performed using TIMP-1 monoclonal antibody in SELDI TOF MS and ELISA. SELDI TOF MS applying an antibody to TIMP-1 revealed that human plasma TIMP-1 has a mass of 25.1 kDa and exhibits several isoforms. Both methods showed increased plasma TIMP-1 values for cancer patients as compared to healthy individuals. The p values for the separation of the groups were 0.0019 for ELISA and <0.0001 for SELDI TOF MS. CRC did not fundamentally affect the appearance of TIMP-1 as evaluated by SELDI TOF MS.


2007 ◽  
Vol 22 (2) ◽  
pp. 89-94 ◽  
Author(s):  
M.B. Caspersen ◽  
N.M. Sørensen ◽  
A.S. Schrohl ◽  
P. Iversen ◽  
H.J. Nielsen ◽  
...  

Early detection of colorectal cancer (CRC) improves patient survival. Plasma tissue inhibitor of metalloproteinases 1 (TIMP-1) measurements by enzyme-linked immunosorbent assay (ELISA) have been suggested as a new method for the early detection of CRC. To further investigate the nature of TIMP-1 in plasma, surface-enhanced laser desorption/ionization time-of-flight mass spectrometry (SELDI TOF MS) was used. TIMP-1 measurements of plasma from 16 healthy donors and 14 CRC patients were performed using TIMP-1 monoclonal antibody in SELDI TOF MS and ELISA. SELDI TOF MS applying an antibody to TIMP-1 revealed that human plasma TIMP-1 has a mass of 25.1 kDa and exhibits several isoforms. Both methods showed increased plasma TIMP-1 values for cancer patients as compared to healthy individuals. The p values for the separation of the groups were 0.0019 for ELISA and <0.0001 for SELDI TOF MS. CRC did not fundamentally affect the appearance of TIMP-1 as evaluated by SELDI TOF MS.


2016 ◽  
Vol 34 (15_suppl) ◽  
pp. e15089-e15089
Author(s):  
Nora Manoukian Forones ◽  
Patrcia Valeria Serafim ◽  
Adiel Figueiredo ◽  
Augusto Azzolini ◽  
Aledson Vitor Felipe ◽  
...  

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