A protective role for keratinocyte growth factor in a murine model of chemotherapy and radiotherapy-induced mucositis.
Int J Radiat Oncol Biol Phys
; 66(1): 254-62, 2006 Sep 01.
Article
en En
| MEDLINE
| ID: mdl-16904525
PURPOSE: To evaluate the activity of palifermin (rHuKGF) in a murine model of mucosal damage induced by a radiotherapy/chemotherapy (RT/CT) regimen mimicking treatment protocols used in head-and-neck cancer patients. METHODS AND MATERIALS: A model of mucosal damage induced by RT/CT was established by injecting female BDF1 mice with cisplatin (10 mg/kg) on Day 1; 5-fluorouracil (40 mg/kg/day) on Days 1-4, and irradiation (5 Gy/day) to the head and neck on Days 1-5. Palifermin was administered subcutaneously on Days -2 to 0 (5 mg/kg/day) and on Day 5 (5 mg/kg). Evaluations included body weight, organ weight, keratinocyte growth factor receptor expression, epithelial thickness, and cellular proliferation. RESULTS: Initiation of the radiochemotherapeutic regimen resulted in a reduction in body weight in control animals. Palifermin administration suppressed weight loss and resulted in increased organ weight (salivary glands and small intestine), epithelial thickness (esophagus and tongue), and cellular proliferation (tongue and salivary glands). CONCLUSIONS: Administration of palifermin before RT/CT promotes cell proliferation and increases in epithelial thickness in the oral mucosa, salivary glands, and digestive tract. Palifermin administration before and after RT/CT mitigates weight loss and a trophic effect on the intestinal mucosa and salivary glands, suggesting that palifermin use should be investigated further in the RT/CT settings, in which intestinal mucositis and salivary gland dysfunction are predominant side effects of cytotoxic therapy.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Estomatitis
/
Factor 7 de Crecimiento de Fibroblastos
Tipo de estudio:
Etiology_studies
/
Guideline
/
Prognostic_studies
Límite:
Animals
/
Female
/
Humans
Idioma:
En
Revista:
Int J Radiat Oncol Biol Phys
Año:
2006
Tipo del documento:
Article
País de afiliación:
Estados Unidos
Pais de publicación:
Estados Unidos