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Antineoplastic activity of 1,25(OH)2D3 and its analogue 22-oxacalcitriol against human anaplastic thyroid carcinoma cell lines in vitro.

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Anaplastic carcinoma of thyroid is uncommon and is associated with a poor prognosis. an effective treatment of this carcinoma has not been found. We have examined the inhibition of promotion by 1, 25(OH)2D3 and its analogue without hypercalcemia, 22-oxacalcitriol (OCT) in the thyroid anaplastic carcinoma cell line. TTA-1, thyroid anaplastic carcinoma cell line, and TAC-1, thyroid anaplastic carcinoma cells. TPC-1,2,3,4, which are all papillary carcinoma of thyroid were used as control. Tumor growth was measured by MTT assay. 1,25(OH)2D3 additive cell growth was observed in diphasic pattern in 3/4 papillary carcinoma cell lines. OCT was more effective, showing dose-dependent inhibition of cell growth in anaplastic carcinoma cell lines, than that in papillary carcinoma cells. Conclusively, OCT might be useful for the inhibition of growth in anaplastic thyroid cancer.
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Document Type: Research Article

Affiliations: Department of Surgery II, Fukushima University School of Medicine, Fukushima 960-1295, Japan.

Publication date: December 1, 1999

More about this publication?
  • The International Journal of Molecular Medicine is a monthly, peer-reviewed journal devoted to the publication of high quality studies related to the molecular mechanisms of human disease. The journal welcomes research on all aspects of molecular and clinical research, ranging from biochemistry to immunology, pathology, genetics, human genomics, microbiology, molecular pathogenesis, molecular cardiology, molecular surgery and molecular psychology.

    The International Journal of Molecular Medicine aims to provide an insight for researchers within the community in regard to developing molecular tools and identifying molecular targets for the diagnosis and treatment of a diverse number of human diseases.
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