Treatment of metastatic melanoma B16F10 by the flavonoids tangeretin, rutin, and diosmin.
Melanoma is one of the most frequently metastasizing malignant neoplasias. This study examines an experimental model of pulmonary metastasis and the B16F10 cell subline, highly metastatic in the lung. Antimetastatic effects of the flavonoids tangeretin, rutin, and diosmin were analyzed, and at the same time an analysis of the metastatic activity of ethanol was performed, considered to be necessary because it is used as a vehicle for administering the flavonoids. Lentini's model, which complements the macroscopic evaluation of nodule numbers by using a stereoscopic microscope and image analysis at the microscopic level, was used. The greatest reduction in the number of metastatic nodules (52%) was obtained with diosmin; similarly, the percentages of implantation, growth index, and invasion index (79.40, 67.44, and 45.23%, respectively), were all compared with those of the ethanol group, considered to be an effective control group. Rutin- and tangeretin-treated groups also showed reductions of the same index compared with the ethanol group. It would seem that structural factors would better explain these results and the antimetastatic activity of each flavonoid and the respective metabolites.
Martínez Conesa
Cristina
C
Pathology Department, Faculty of Medicine, University of Murcia, 30100 Espinardo, Murcia, Spain.
Vicente Ortega
Vicente
V
Yáñez Gascón
M Josefa
MJ
Alcaraz Baños
Miguel
M
Canteras Jordana
Manuel
M
Benavente-García
Obdulio
O
Castillo
Julián
J
D000818:Animals; D004145:Diosmin / Q000627:therapeutic use*; D005260:Female; D047309:Flavones / Q000627:therapeutic use*; D008175:Lung Neoplasms / Q000188:drug therapy / Q000473:pathology / Q000556:secondary; D008546:Melanoma, Experimental / Q000188:drug therapy* / Q000473:pathology; D051379:Mice; D009368:Neoplasm Transplantation; D012431:Rutin / Q000627:therapeutic use*
D047309:Flavones; D012431:Rutin; D004145:Diosmin; C059006:tangeretin