Abstract:
:Conversion of solid sarcomas and carcinomas into ascites tumors depends on the in vivo selection of phenotypically altered tumor cell variants that can grow in the dissociated form. Once selected, they retain this property even after prolonged s.c. growth as solid tumors. From an s.c.-passaged subline of an ascites-converted murine sarcoma (SEWA-AS12), we were able to separate cells adapted to the ascites form of growth from cells that can only grow in the solid form on the basis of their differential adherence to plastic. Both c-myc and pvt-1 were amplified approximately 63- to 77-fold in the nonadherent subline (SEWA-AS12-NA), but only 5- to 8-fold in the adherent subline (SEWA-AS12-ADH). This suggests that c-myc and/or pvt-1 amplification may provide a selective advantage to cells that can grow in the dissociated form.
journal_name
Int J Cancerjournal_title
International journal of cancerauthors
Minarovits J,Steinitz M,Boldog F,Imreh S,Wirschubsky Z,Ingvarsson S,Hedenskog M,Minarovits-Kormuta S,Klein Gdoi
10.1002/ijc.2910450324subject
Has Abstractpub_date
1990-03-15 00:00:00pages
514-20issue
3eissn
0020-7136issn
1097-0215journal_volume
45pub_type
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