Title : Cell-shape-associated transcriptional activation of the p52(PAI-1) gene in rat kidney cells.

Pub. Date : 1992 Dec 15

PMID : 1471975






10 Functional Relationships(s)
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1 The microfilament-disrupting agent cytochalasin D (CD) increased (by 10-22-fold) the synthesis de novo and extracellular matrix deposition of plasminogen-activator inhibitor type-1 [p52(PAI-1)] in normal rat kidney (NRK) cells. Cytochalasin D similar to Mitochondrial processing peptidase beta subunit, mitochondrial precursor (Beta-MPP; P-52) Rattus norvegicus
2 The microfilament-disrupting agent cytochalasin D (CD) increased (by 10-22-fold) the synthesis de novo and extracellular matrix deposition of plasminogen-activator inhibitor type-1 [p52(PAI-1)] in normal rat kidney (NRK) cells. Cytochalasin D similar to Mitochondrial processing peptidase beta subunit, mitochondrial precursor (Beta-MPP; P-52) Rattus norvegicus
3 CD-associated increases in p52(PAI-1) mRNA abundance and protein biosynthesis were maximal between 6 and 8 h of continuous CD exposure, declined by 50% thereafter, but remained elevated (by at least 6-21-fold respectively over control values) for 24 h. Changes in p52(PAI-1) mRNA abundance at this 24 h point reflected an approx. Cytochalasin D similar to Mitochondrial processing peptidase beta subunit, mitochondrial precursor (Beta-MPP; P-52) Rattus norvegicus
4 CD-associated increases in p52(PAI-1) mRNA abundance and protein biosynthesis were maximal between 6 and 8 h of continuous CD exposure, declined by 50% thereafter, but remained elevated (by at least 6-21-fold respectively over control values) for 24 h. Changes in p52(PAI-1) mRNA abundance at this 24 h point reflected an approx. Cytochalasin D similar to Mitochondrial processing peptidase beta subunit, mitochondrial precursor (Beta-MPP; P-52) Rattus norvegicus
5 CD-associated increases in p52(PAI-1) mRNA abundance and protein biosynthesis were maximal between 6 and 8 h of continuous CD exposure, declined by 50% thereafter, but remained elevated (by at least 6-21-fold respectively over control values) for 24 h. Changes in p52(PAI-1) mRNA abundance at this 24 h point reflected an approx. Cytochalasin D similar to Mitochondrial processing peptidase beta subunit, mitochondrial precursor (Beta-MPP; P-52) Rattus norvegicus
6 284, 433-439], that CD-mediated increases in p52(PAI-1) expression are at least partly due to transcription-level events. Cytochalasin D similar to Mitochondrial processing peptidase beta subunit, mitochondrial precursor (Beta-MPP; P-52) Rattus norvegicus
7 Induction of p52(PAI-1) synthesis and matrix deposition in CD-stimulated quiescent NRK cells was as efficient under growth-factor-deficient conditions as when CD was added simultaneously with serum. Cytochalasin D similar to Mitochondrial processing peptidase beta subunit, mitochondrial precursor (Beta-MPP; P-52) Rattus norvegicus
8 Induction of p52(PAI-1) synthesis and matrix deposition in CD-stimulated quiescent NRK cells was as efficient under growth-factor-deficient conditions as when CD was added simultaneously with serum. Cytochalasin D similar to Mitochondrial processing peptidase beta subunit, mitochondrial precursor (Beta-MPP; P-52) Rattus norvegicus
9 CD alone is thus a complete inducer of p52(PAI-1) expression in NRK cells, an observation that supports the contention that cell shape is an important regulatory element in p52(PAI-1)-gene control. Cytochalasin D similar to Mitochondrial processing peptidase beta subunit, mitochondrial precursor (Beta-MPP; P-52) Rattus norvegicus
10 CD alone is thus a complete inducer of p52(PAI-1) expression in NRK cells, an observation that supports the contention that cell shape is an important regulatory element in p52(PAI-1)-gene control. Cytochalasin D similar to Mitochondrial processing peptidase beta subunit, mitochondrial precursor (Beta-MPP; P-52) Rattus norvegicus