Bondanelli Marta, Ambrosio Maria Rosaria, Zatelli Maria Chiara, Cavazzini Luigi, Al Jandali Rifa'y Laura, degli Uberti Ettore C
Department of Biomedical Sciences and Advanced Therapies, Section of Endocrinology, University of Ferrara, Via Savonarola, 9, 44100 Ferrara, Italy.
World J Gastroenterol. 2005 Apr 7;11(13):2041-4. doi: 10.3748/wjg.v11.i13.2041.
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.
很少有临床研究证实生长抑素(SST)类似物在类癌中有抗增殖活性。我们报告了一例患有神经内分泌肿瘤肝转移且无原发性肿瘤证据的女性病例。肝转移灶的特征为增殖指数高、对生长抑素受体(SSTR)-1、2、3和5免疫反应阳性且奥曲肽扫描呈阳性。尿5-羟吲哚乙酸、血清5-羟色胺和嗜铬粒蛋白A升高。长效兰瑞肽(SR-LAN)治疗3个月控制了类癌肿瘤的临床和生化体征,并使两个肝转移灶的直径明显缩小,另一个病灶消失,6个月和18个月后进一步缩小。我们证明了SR-LAN对具有高增殖指数且对SSTR-1、2、3和5免疫反应阳性的隐匿性类癌肝转移灶有明确的持久抗增殖作用。SSTRs免疫组化可能是选择可能从SST类似物治疗中获益的转移性类癌患者的合适方法。