Cholangiocarcinoma (CCA) is one of the major health
problems that affects northeast Thailand. Liver fluke
infection and hepatolithiasis have been identified as the
etiological factors that influence the regional frequency of
CCA. The liver fluke, Opisthorchis viverrini, is endemic to
northeast Thailand and is closely related to the high incidence
of bile duct cancer.1 The infection of O. viverrini occurs
primarily in the liver, extrahepatic bile ducts, and gall bladder.
The only potentially curative treatment for CCA is a surgery
that is appropriate in less than 50% of cases.2 In patients with
irresectable and metastatic CCA, chemotherapy has been used
to control the disease and improve the patients’ survival rates.
However, a relatively poor response rate of CCA to
chemotherapy has been demonstrated in clinical studies.3
Therefore, a search for new and effective therapeutic agents is
still needed. This has led to screening chemical constituents
from Thai medicinal plants for cytotoxicity against cholangiocarcinoma
cell lines.4−
Cholangiocarcinoma (CCA) is one of the major healthproblems that affects northeast Thailand. Liver flukeinfection and hepatolithiasis have been identified as theetiological factors that influence the regional frequency ofCCA. The liver fluke, Opisthorchis viverrini, is endemic tonortheast Thailand and is closely related to the high incidenceof bile duct cancer.1 The infection of O. viverrini occursprimarily in the liver, extrahepatic bile ducts, and gall bladder.The only potentially curative treatment for CCA is a surgerythat is appropriate in less than 50% of cases.2 In patients withirresectable and metastatic CCA, chemotherapy has been usedto control the disease and improve the patients’ survival rates.However, a relatively poor response rate of CCA tochemotherapy has been demonstrated in clinical studies.3Therefore, a search for new and effective therapeutic agents isstill needed. This has led to screening chemical constituentsfrom Thai medicinal plants for cytotoxicity against cholangiocarcinomacell lines.4−
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