Splenic metastasis of B16 melanoma cells occurred through the blood in C57BL/6 mice
- VernacularTitle:C57BL/6小鼠B16黑色素瘤细胞脾转移机制
- Author:
Ying-Song QIN
;
Xu ZHANG
;
Li LI
;
- Publication Type:Journal Article
- Keywords:
Melanoma,experimental;
Spleen;
Neoplasm metastasis
- From:
Cancer Research and Clinic
2006;0(09):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate whether the splenic metastasis of B16 melanoma cells in C57BL/6 mice occur through the blood.Methods Cultured B16 melanoma cells were collected,adjusted into 1?10~7/ml and inoculated into the left armpit of C57BL/6 mice,200 ?l each.After 15 days,the mice were sac- rificed and metastasis was examined in various tissues and organs by HE stain.1.5 % Evan Blue(EB),2 ml/kg, was administered to normal C57BL/6 mice through the tail vein,and the region stained blue was compared with that of metastasis.Results All of 12 mice inoculated were burdened with melanoma.Splenic metastasis occurred in 9 of them,among which 3 were accompanied by lung metastasis,and all of 9 mice showed differ- ent degree of local lymph node metastasis.The dorsal 1/4 part of the positive spleen was stained black by the metastatic tumor cells.Under the microscope,distribution of the metastatic tumor cells in the spleen was scat- tered,their growth inhibited,and maturation accelerated.The region stained blue by EB also located at the dorsal 1/4 part of the spleen,which was almost the same as the positive part of metastasis.Conclusions Metastasis of B16 melanoma cells in C57BL/6 miee occurs earlier in the spleen than in other organs,and this metastasis is achieved most possibly through the blood.
