Abstract:
:In vitro cultured r/mHM-SFME-1 cells were injected into the hind foot pads of Balb/c mice. Metastasis was detected in the lungs of tumor-bearing mice by means of both PCR and histological methods. Primers for the PCR were set to amplify a 128 bp exon-1 sequence of the human c-Ha-ras1 gene which had been introduced into the cells. Resulted PCR bands were densitometorically quantified using a bioimage analyzer, and more than 1 x 10(4) tumor cells were detectable in the mouse lung. The number of tumor cells per lung estimated from the amount of PCR products was 1 x 10(5), 15 x 10(5), 1 x 10(5) and 40 x 10(5) on days 7, 14, 21 and 28 respectively after the tumor injection. No metastases were histologically observed on days 7 and 14. Then, the possibility of using this model system for evaluation of a treatment against micro-metastases is discussed.
journal_name
Cancer Lettjournal_title
Cancer lettersauthors
Matano S,Ryoyama K,Nakamura S,Okada G,Nomura Tdoi
10.1016/0304-3835(94)03722-usubject
Has Abstractpub_date
1995-05-04 00:00:00pages
93-9issue
1eissn
0304-3835issn
1872-7980pii
030438359403722Ujournal_volume
91pub_type
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