Effects of fluoxetine on the development of lung metastases induced by operative stress in rats

• Published in: Life sciences (1973) 1998, Vol.63 (2), p.PL31-PL38
• Main Authors: Freire-Garabal, Manuel, Núñez, María J., Pereiro, Dolores, Riveiro, Pilar, Losada, Conceptión, Fernández-Rial, JoséC., Garcfa-lglesias, Elisardo, Prizmic, Javier, Mayán, JoséM., Rey-Méndez, Manuel
• Format: Article
• Language: English
• Subjects: Animals; Antidepressive Agents, Second-Generation - pharmacology; Antineoplastic Agents - pharmacology; cancer; Carcinoma 256, Walker - drug therapy; Carcinoma 256, Walker - secondary; fluoxetine; Fluoxetine - pharmacology; Lung Neoplasms - drug therapy; Lung Neoplasms - secondary; Male; Neoplasm Transplantation; Rats; Rats, Sprague-Dawley; Serotonin Uptake Inhibitors - pharmacology; stress; Stress, Physiological - complications; Stress, Physiological - etiology; surgery; Surgical Procedures, Operative - adverse effects; Walker rat carcinoma
• ISSN: 0024-3205; 1879-0631
• DOI: 10.1016/S0024-3205(98)00253-7

Experiments were performed in order to evaluate the effects of fluoxetine, a selective inhibitor of neural serotonin transporter antidepressant, on the development lung metastases in rats subjected to laparotomy and injected (i.v.) with 10 4 Walker 256 (W-256) carcinosarcoma cells. The number of metastatic nodules on the surface of the lungs, as well as the percentagearea of metastases in the frontal section through pulmonary hilus were increased in rats subjected to sham-surgery or laparotomy. Treatment with fluoxetine (5 mg/kg) partially reversed those adverse effects of surgery, but the difference was clearer when it was administered before surgery was performed. Survival periods were also assessed and fluoxetine was found to decrease the lethality of rats exposed to surgery.