Development of mouse models of malignant phyllodes tumors by transplantation of syngeneic mammary gland cells expressing mutant H-Ras

Yayoi Takamoto, Yoshimi Arima, Hideyuki Saya

研究成果: Article査読

1 被引用数 (Scopus)

抄録

Phyllodes tumors (PTs) are rare fibroepithelial tumors of the breast with epithelial and stromal components, and surgical resection is the standard and only available treatment for malignant PTs. To provide a better understanding of these tumors, we developed mouse models that recapitulate the pathological and clinical properties of human malignant PTs. Mouse undifferentiated mammary gland cells were infected with a retrovirus encoding the human oncoprotein H-RasG12V, and the infected cells were transplanted orthotopically into the mammary fat pads of syngeneic mice. The transplanted cells showed a high tumorigenic activity, with the resulting tumors manifesting pathological characteristics including stromal overgrowth similar to those of human malignant PTs. The tumors also showed high rates of both local recurrence and lung metastasis. Our models may prove useful for studies of the pathophysiology of malignant PTs as well as facilitate the development of new treatments.

本文言語English
ページ(範囲)1244-1252
ページ数9
ジャーナルGenes to Cells
21
11
DOI
出版ステータスPublished - 2016 11 1

ASJC Scopus subject areas

  • Genetics
  • Cell Biology

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