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Singapore scientists expose molecular secrets of bile duct cancers from different countries
Date:11/3/2013

SINGAPORE - A team of scientists from the National Cancer Centre Singapore, Duke-NUS Graduate Medical School Singapore, Fundeni Clinical Institute (Romania) and Koen Kaen University (Thailand), have made a seminal breakthrough in understanding the molecular basis of bile duct cancer or cholangiocarcinoma, a rare but highly lethal form of liver cancer. The team, led by Professors Teh Bin Tean, Patrick Tan, Steve Rozen, Irinel Popescu and Vajaraphongsa Bhudhisawasdi, used advanced DNA sequencing technologies to map the complete repertoire of human genes disrupted in cholangiocarcinoma.

2. The team's findings may lead to new cholangiocarcinoma treatments, and have shed light on some of the oldest questions in cancer research. The group is also affiliated with the Genome Institute of Singapore and the Cancer Science Institute in Singapore. This work was published online today in the scientific journal Nature Genetics.

3. Cholangiocarcinoma (CCA), is a cancer involving uncontrolled growth of the bile ducts, the part of the liver that drains bile into the intestine. In most countries, CCA is considered a rare cancer, but the incidence of CCA is rising worldwide and in certain countries such as the North East of Thailand and neighbouring Laos, CCA is already widespread due to patients in this region being exposed to liver flukes. Other potential causes of CCA include bile duct inflammation, congenital cysts, hepatitis, and the presence of liver stones. Patients diagnosed with CCA have a dismal prognosis as the disease is considered incurable, with a 5-year survival rate of 5%.

New Potential Avenues for Treatment

4. By studying CCAs from Singapore, Thailand and Romania, the team identified several genes that were repeatedly disrupted in order for CCA to develop. Importantly, the cellular pathways controlled by these genes have suggested new potential avenues to treat CCA. One such gene identified, BAP1, participates in the u
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Contact: Rachel Tan
Rachel.Tan.C.H@nccs.com.sg
659-754-0842
SingHealth
Source:Eurekalert

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