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New marker identified for early diagnosis of lung cancer
Date:9/16/2013

controls, enrolled between 2007 and 2011 in the Cancer Institute and Hospital of the Chinese Academy of Medical Sciences. None of the study participants had a cancer diagnosis, nor were they treated for cancer in the three years prior to the study. Using methods called ELISA and ECL, they measured the levels of IDH1, CEA, Cyfra21-1, and CA125 in the participants' blood.

The researchers then divided the samples into a training set and a test set to validate the detection efficiency of IDH1. They found the data obtained from the test set were as good as those from the training set, demonstrating the robustness of IDH1 as a biomarker for lung cancer diagnosis.

The median IDH1 levels in patients with two types of lung cancer, adenocarcinoma and squamous cell carcinoma, were 2.7-fold and 2.2-fold higher, respectively, compared with healthy controls.

The researchers also found that combining the detection of all four markers IDH1, CEA, Cyfra21-1, and CA125 helped to better classify different types of adenocarcinoma, compared with detection with IDH1 alone.

He and colleagues are planning to conduct a multicenter clinical trial for further validation of IDH1.

"Our research also suggests IDH1 may be involved in the development of lung cancer, and it may be a good target for the treatment of NSCLC," said He. His team is currently studying the molecular mechanisms that increase IDH1 in lung cancer patients and its clinical implications.


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Contact: Jeremy Moore
jeremy.moore@aacr.org
215-446-7109
American Association for Cancer Research
Source:Eurekalert

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