Overexpression of the human melanoma-associated antigen ME491 partially suppresses in vivo malignant phenotypes of H-ras-transformed NIH3T3 cells in athymic nude mice

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ID: 273110
1991
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Abstract
H-ras-transformed NIH3T3 cells that overexpressed a human melanoma-associated antigen ME491 (44-3H) were generated by transfection with the cloned ME491 antigen gene followed by a 'panning' selection, and effects of the antigen overexpression on H-ras-mediated malignant phenotypes were studied. Although in vitro growth properties of the 44-3H overexpresser cells, both anchorage-dependent and -independent, were practically the same as those of the 44-1C control cells, 44-3H cells exhibited less malignant phenotypes in athymic nude mice (in vivo), i.e. decreased tumourigenicity after subcutaneous inoculation and prolonged survival time after intraperitoneal inoculation, compared with 44-1C cells. These results suggested that overexpression of ME491 antigen partially suppressed malignant phenotypes of H-ras-transformed NIH3T3 cells in athymic nude mice through co-operating with a factor(s) or mechanism(s) that exist in vivo but not in vitro. Thus, ME491 antigen might act as a tumour suppressor under some circumstances.
Reference Key
homma1991melanomaoverexpression Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors H. Hotta,I. Hara,H. Miyamoto,M. Homma;H. Hotta;I. Hara;H. Miyamoto;M. Homma;
Journal melanoma research
Year 1991
DOI
10.1097/00008390-199106000-00007
URL
https://sciprofiles.com/publication/view/6f9dae1c33f2536393370aa30feacf7e
Keywords
overexpression ras partially malignant phenotypes me491 antigen athymic nude

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