INVESTIGADORES
KORNBLIHTT Alberto Rodolfo
artículos
Título:
Regulation of fibronectin alternative splicing by a basement membrane-like extracellular matrix.
Autor/es:
SREBROW, A; BLAUSTEIN M; KORNBLIHTT AR.
Revista:
FEBS LETTERS
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Año: 2002 p. 285 - 285
ISSN:
0014-5793
Resumen:
Hepatocytes are the source of plasma fibronectin (FN) which lacks the alternatively spliced EDI segment, distinctive of oncofetal FN. When hepatic or other epithelial cells are cultured on plastic, EDI inclusion is triggered. Here we report that EDI inclusion is inhibited when hepatic cells are cultured on a basement membrane-like extracellular matrix (ECM), demonstrating a new role for the ECM in the control of gene expression. The effect is duplicated by collagen IV and laminin but not by collagen I; is not observed with another alternatively spliced FN exon (EDII); and correlates with a decrease in cell proliferation, consistently with high EDI inclusion levels observed in many physiological and pathological proliferative processes.
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