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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Regression of liver metastases of occult carcinoid tumor with slow release lanreotide therapy.

Few clinical studies have demonstrated an anti-proliferative activity of somatostatin (SST) analogs in carcinoids. We report the case of a woman with liver metastases of neuroendocrine tumor and no evidence of the primary tumor. The liver metastases were characterized by high proliferation index, immunoreactiviy for somatostatin receptor (SSTR)-1, 2, 3 and 5 and positive octreoscan. Urinary 5-hydroxyindolacetic acid, serum serotonin and chromogranin A were elevated. Slow release lanreotide (SR- LAN) therapy for 3 mo controlled clinical and biochemical signs of carcinoid tumor and caused a clear-cut reduction in the diameter of two liver metastases and disappearance of another lesion, with further reduction after 6 and 18 mo. We demonstrated a clear-cut long-lasting anti-proliferative effect of SR- LAN on liver metastases of occult carcinoid with high proliferation index and immunoreactivity for SSTR-1, 2, 3, and 5. Immuno-histochemistry for SSTRs could be a suitable method for the selection of patients with metastatic carcinoid that may benefit from SST analog therapy.[1]


  1. Regression of liver metastases of occult carcinoid tumor with slow release lanreotide therapy. Bondanelli, M., Ambrosio, M.R., Zatelli, M.C., Cavazzini, L., Al Jandali Rifa'y, L., degli Uberti, E.C. World J. Gastroenterol. (2005) [Pubmed]
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