Clinical & Experimental Metastasis

, Volume 6, Issue 2, pp 121–129

Tumor necrosis can facilitate the appearance of metastases

  • R. Daniel Bonfil
  • Oscar D. Bustuoabad
  • Raul A. Ruggiero
  • Roberto P. Meiss
  • Christiane D. Pasqualini
Article

DOI: 10.1007/BF01784843

Cite this article as:
Bonfil, R.D., Bustuoabad, O.D., Ruggiero, R.A. et al. Clin Exp Metast (1988) 6: 121. doi:10.1007/BF01784843

Abstract

The non-metastatic murine mammary adenocarcinoma M3 and its metastatic variant MM3 were used to evaluate the role of intratumoral necrosis in cell detachment and metastasis. Accelular extracts from necrotic areas of both tumors increasedin vitro cellular detachment from M3 but not from MM3 fragments. Furthermore, thein vivo inoculation of the necrotic extracts within non-metastatic M3 tumors gave rise to pulmonary metastases. Histological studies revealed in M3 a central necrosis limited by an uninterrupted peripheral ring of well preserved cells, while in MM3 necrotic and non-necrotic areas alternated. It is concluded that the distribution of necrosis within the primary tumor by facilitating cell detachment is, at least in part, responsible for the development of metastases.

Copyright information

© Kluwer Academic Publishers 1988

Authors and Affiliations

  • R. Daniel Bonfil
    • 3
  • Oscar D. Bustuoabad
    • 1
  • Raul A. Ruggiero
    • 1
  • Roberto P. Meiss
    • 2
  • Christiane D. Pasqualini
    • 1
  1. 1.Seccion Leucemia ExperimentalInstitute de Investigaciones HematologicasArgentina
  2. 2.Departamento de Patologia, Centro de Estudios OncologicosAcademia Nacional de MedicinaBuenos AiresArgentina
  3. 3.Department of Pathology, Institute for Cancer ResearchFox Chase Cancer CenterPhiladelphiaUSA