scholarly journals Fibroblast growth factor-1 stimulation of quiescent NIH 3T3 cells increases G/T mismatch-binding protein expression

1996 ◽  
Vol 319 (1) ◽  
pp. 9-12 ◽  
Author(s):  
Patrick J. DONOHUE ◽  
Sheau-Line Y. FENG ◽  
Gregory F ALBERTS ◽  
Yan GUO ◽  
Kimberly A PEIFLEY ◽  
...  
Keyword(s):  
Cell Cycle ◽  
Growth Factor ◽  
Fibroblast Growth Factor ◽  
Binding Protein ◽  
Calf Serum ◽  
Mrna Levels ◽  
Fibroblast Growth ◽  
3T3 Cells ◽  
Nih 3T3 ◽  
Nih 3T3 Cells

Polypeptide growth factors promote cell-cycle progression in part by the transcriptional activation of a diverse group of specific genes. We have used an mRNA differential-display approach to identify several fibroblast growth factor (FGF)-1 (acidic FGF)-inducible genes in NIH 3T3 cells. Here we report that one of these genes, called FGF-regulated (FR)-3, is predicted to encode G/T mismatch-binding protein (GTBP), a component of the mammalian DNA mismatch correction system. The murine GTBP gene is transiently expressed after FGF-1 or calf serum treatment, with maximal mRNA levels detected at 12 and 18 h post-stimulation. FGF-1-stimulated NIH 3T3 cells also express an increased amount of GTBP as determined by immunoblot analysis. These results indicate that elevated levels of GTBP may be required during the DNA synthesis phase of the cell cycle for efficient G/T mismatch recognition and repair.

scholarly journals Selective expression of high molecular weight basic fibroblast growth factor confers a unique phenotype to NIH 3T3 cells.

1991 ◽  
Vol 2 (9) ◽  
pp. 699-708 ◽  
Author(s):  
N Quarto ◽  
D Talarico ◽  
R Florkiewicz ◽  
D B Rifkin
Keyword(s):  
Molecular Weight ◽  
Growth Factor ◽  
Fibroblast Growth Factor ◽  
High Molecular Weight ◽  
Basic Fibroblast Growth Factor ◽  
Fibroblast Growth ◽  
3T3 Cells ◽  
Low Levels ◽  
Nih 3T3 ◽  
Nih 3T3 Cells

The phenotypes of NIH 3T3 cells transfected with basic fibroblast growth factor (bFGF) cDNAs that express only the high molecular weight (HMW) forms of bFGF, the 18-kDa form, or all forms were examined. Cells producing the 18 kDa or all forms of bFGF were transformed at high levels of growth factor expression but were nontransformed at low levels. Cell producing low levels of HMW forms of bFGF were growth impaired when compared with the parental cells. These cells tended to form multinucleated giant cells, did not grow in soft agar, were nontumorigenic, had a normal bFGF receptor number, and had a nontransformed morphology. Cells expressing high levels of HMW bFGFs had a transformed morphology and were tumorigenic. These data suggest a specific functional role for HMWbFGF.

scholarly journals The Release of Fibroblast Growth Factor-1 from NIH 3T3 Cells in Response to Temperature Involves the Function of Cysteine Residues

1995 ◽  
Vol 270 (1) ◽  
pp. 33-36 ◽  
Author(s):  
Anthony Jackson ◽  
Francesca Tarantini ◽  
Susan Gamble ◽  
Stanley Friedman ◽  
Thomas Maciag
Keyword(s):  
Growth Factor ◽  
Fibroblast Growth Factor ◽  
Cysteine Residues ◽  
Fibroblast Growth ◽  
3T3 Cells ◽  
Response To Temperature ◽  
Nih 3T3 ◽  
Nih 3T3 Cells

scholarly journals Differential control of murine aldose reductase and fibroblast growth factor (FGF)-regulated-1 gene expression in NIH 3T3 cells by FGF-1 treatment and hyperosmotic stress

1997 ◽  
Vol 328 (2) ◽  
pp. 593-598 ◽  
Author(s):  
Debbie K. W. HSU ◽  
Yan GUO ◽  
A. Kimberly PEIFLEY ◽  
A. Jeffrey WINKLES
Keyword(s):  
Growth Factor ◽  
Mrna Expression ◽  
Fibroblast Growth Factor ◽  
Aldose Reductase ◽  
Mrna Levels ◽  
Fibroblast Growth ◽  
3T3 Cells ◽  
Quiescent Cells ◽  
Nih 3T3 ◽  
Stimulation Of

Aldose reductase (AR) is an NADPH-dependent aldo-keto reductase implicated in cellular osmoregulation and detoxification. Two distinct murine genes have been identified that are predicted to encode proteins with significant amino acid sequence identity with mouse AR: mouse vas deferens protein and fibroblast growth factor (FGF)-regulated-1 protein (FR-1). Here we report that the AR and FR-1 genes are differentially regulated in NIH 3T3 fibroblasts. FGF-1 stimulation of quiescent cells induces both AR and FR-1 mRNA levels, but the effect on FR-1 mRNA expression is significantly greater. FGF-1 treatment also increases FR-1 protein expression, as determined by Western-blot analysis using FR-1-specific polyclonal antiserum. Calf serum stimulation of quiescent cells increases AR mRNA expression but not FR-1 mRNA expression. Finally, when NIH 3T3 cells are grown in hypertonic medium, AR mRNA levels are significantly increased whereas FR-1 mRNA levels are only slightly up-regulated. These results indicate that the AR and FR-1 genes are differentially regulated in murine fibroblasts by two different growth-promoting agents and by hyperosmotic stress. Therefore these structurally related enzymes may have at least some distinct cellular functions; for example, although both AR and FR-1 activity may be important for the metabolic changes associated with cellular proliferation, AR may be the primary aldo-keto reductase involved in cellular osmoregulation.

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