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| NOVOA HERRÁN,Sandra Susana; CASTELBLANCO,Mariela; SÁNCHEZ -GÓMEZ,Myriam; UMAÑA PÉREZ,Adriana. |
| ABSTRACT Invasion of trophoblast into endometrium is vital for successful pregnancy development. MMP9 and uPA are key proteases in this process, but it is still not clear the regulation of its expression by Transforming Growth Factor Beta (TGF-β), a known negative regulator of trophoblast invasion. We evaluated the effect of TGF-β on the transcriptional expression of uPA and MMP9 over time, in HTR-8/SVneo trophoblast cells cultured with or without 0.5 % fetal bovine serum, via RT qPCR. The involved transcription factors and signaling pathways were analyzed in silico, using Proscan, Enrich, PCViz and Wiki Pathway. Results showed that TGF-β temporarily regulates the expression of uPA and MMP9. Serum modified the nature of TGF-β's effects on uPA expression,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Computational biology; Matrix metalloproteinase; Placenta; Plasminogen; Polymerase chain reaction. |
| Ano: 2019 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2019000100026 |
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| Jobim,F.C.; Xavier,N.L.; Uchoa,D.M.; Cruz,D.B.; Saciloto,M.; Chemello,N.; Schwartsmann,G.. |
| Our objective was to determine the presence of vascular endothelial growth factor (VEGF), matrix metalloproteinase-2 (MMP-2) and MMP-9 and specific tissue inhibitors of matrix metalloproteinase (TIMP-1 and TIMP-2) in tumor samples obtained from patients with primary breast cancer. We attempted to correlate these findings with the status of the sentinel lymph node (SLN) and clinical-pathological characteristics such as age, tumor size, histological type, histological grade, and vascular invasion. Tumor samples from 88 patients with primary breast cancer were analyzed. The immunoreactivity of VEGF, MMP-2, MMP-9, TIMP-1, and TIMP-2 in tumors was correlated with clinical and pathological features, as well as SLN status. Nonparametric, Mann-Whittney,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Breast cancer; Vascular endothelial growth factor; Matrix metalloproteinase; Metalloproteinase tissue inhibitors; Sentinel lymph node. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2009001000018 |
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| Liaw,L.; Crawford,H.C.. |
| Cell interactions with extracellular matrices are important to pathological changes that occur during cell transformation and tumorigenesis. Several extracellular matrix proteins including fibronectin, thrombospondin-1, laminin, SPARC, and osteopontin have been suggested to modulate tumor phenotype by affecting cell migration, survival, or angiogenesis. Likewise, proteases including the matrix metalloproteinases (MMPs) are understood to not only facilitate migration of cells by degradation of matrices, but also to affect tumor formation and growth. We have recently demonstrated an in vivo role for the RGD-containing protein, osteopontin, during tumor progression, and found evidence for distinct functions in the host versus the tumor cells. Because of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Matrix metalloproteinase; Osteopontin; Carcinoma; Protease. |
| Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1999000700002 |
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