Syngeneic Mouse Mammary Carcinoma Cell Lines: Two Closely Related Cell Lines with Divergent Metastatic Behavior

Overview

Journal Clin Exp Metastasis

Specialty Oncology

Date 2005 Sep 1

PMID 16132578

Citations 143

Authors

Alexander D Borowsky

Ruria Namba

Lawrence J T Young

Kent W Hunter

J Graeme Hodgson

Clifford G Tepper

Erik T McGoldrick

William J Muller

Robert D Cardiff

Jeffrey P Gregg

Affiliations

Soon will be listed here.

Abstract

Two cell lines, Met-1(fvb2) and DB-7(fvb2), with different metastatic potential, were derived from mammary carcinomas in FVB/N-Tg(MMTV-PyVmT) and FVB/N-Tg(MMTV-PyVmT ( Y315F/Y322F )) mice, transplanted into syngeneic FVB/N hosts and characterized. The lines maintain a stable morphological and biological phenotype after multiple rounds of in vitro culture and in vivo transplantation. The Met-1(fvb2) line derived from a FVB/N-Tg(MMTV-PyVmT) tumor exhibits invasive growth and 100% metastases when transplanted into the females FVB/N mammary fat pad. The DB-7(fvb2) line derived from the FVB/N-Tg(MMTV-PyVmT ( Y315F/Y322F )) with a "double base" modification at Y315F/Y322F exhibits more rapid growth when transplanted into the mammary fat pad, but a lower rate of metastasis (17%). The Met1(fvb2) cells show high activation of AKT, while DB-7(fvb2) cells show very low levels of AKT activation. The DNA content and gene expression levels of both cell lines are stable over multiple generations. Therefore, these two cell lines provide a stable, reproducible resource for the study of metastasis modulators, AKT molecular pathway interactions, and gene target and marker discovery.

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