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| Registros recuperados: 38 | |
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| Dreyfuss,Juliana L.; Regatieri,Caio V.; Jarrouge,Thais R.; Cavalheiro,Renan P.; Sampaio,Lucia O.; Nader,Helena B.. |
| Heparan sulfate proteoglycans are ubiquitously found at the cell surface and extracellular matrix in all the animal species. This review will focus on the structural characteristics of the heparan sulfate proteoglycans related to protein interactions leading to cell signaling. The heparan sulfate chains due to their vast structural diversity are able to bind and interact with a wide variety of proteins, such as growth factors, chemokines, morphogens, extracellular matrix components, enzymes, among others. There is a specificity directing the interactions of heparan sulfates and target proteins, regarding both the fine structure of the polysaccharide chain as well precise protein motifs. Heparan sulfates play a role in cellular signaling either as receptor... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glycosaminoglycans and protein interactions; Growth factors; Focal adhesion; Extracellular matrix; Cell cycle; Cell proliferation. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652009000300007 |
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| Dal-Souto Frescura,Viviane; Wouters Kuhn,Andrielle; Laughinghouse Iv,Haywood Dail; Terezinha Paranhos,Juçara; Bosio Tedesco,Solange. |
| Species of the genus Psychotria are used for multiple purposes in Brazilian folk medicine, either as water infusions, baths or poultices. This study was aimed to evaluate the genotoxic and antiproliferative effects of infusions of Psychotria brachypoda and P. birotula on the Allium cepa test. Exposure to distilled water was used as a negative control, while exposure to glyphosate was used as a positive control. The interaction of extracts (as a post-treatment) with the effects of glyphosate was also studied. Results showed that glyphosate and the extracts of both P. brachypoda and P. birotula reduced the mitotic index as compared with the negative control (distilled water). Surprisingly, however, both extracts from P. brachypoda and P. birotula caused a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Medicinal plants; Psychotria brachypoda; Psychotria birotula; Cell proliferation; Apoptosis. |
| Ano: 2013 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452013000200002 |
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| Pan,Zeya; Pan,Hao; Zhang,Jin; Yang,Yun; Liu,Hui; Yang,Yuan; Huang,Gang; Ni,Junsheng; Huang,Jian; Zhou,Weiping. |
| BACKGROUND: Ubiquitin Specific Peptidase 39 (USP39) is a 65 kDa SR-related protein involved in RNA splicing. Previous studies showed that USP39 is related with tumorigenesis of human breast cancer cells. RESULTS: In the present study, we investigated the functions of USP39 in human hepatocellular carcinoma (HCC) cell line SMMC-7721. We knocked down the expression of USP39 through lentivirus mediated RNA interference. The results of qRT-PCR and western blotting assay showed that both the mRNA and protein levels were suppressed efficiently after USP39 specific shRNA was delivered into SMMC-7721 cells. Cell growth was significantly inhibited as determined by MTT assay. Crystal violet staining indicated that colony numbers and sizes were both reduced after... |
| Tipo: Journal article |
Palavras-chave: Ubiquitin Specific Peptidase 39; Lentivirus; Human hepatocellular carcinoma; Cell proliferation; Cell cycle. |
| Ano: 2015 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602015000100018 |
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| Yin,Lei-Miao; Wei,Ying; Wang,Wen-Qian; Wang,Yu; Xu,Yu-Dong; Yang,Yong-Qing. |
| BACKGROUND: BrdU is a commonly used reagent in cell proliferation assays, and WST-1 measurement is widely used to detect cell viability. However, no previous study has formally reported the combination of the two assays, which may be used to detect the proliferation and viability simultaneously. In this study, we examined the effect of adding BrdU 2 h prior to the WST-1 assay and tried to test the possibility of the combined detection using rat airway smooth muscle cells. RESULTS: The WST-1 measurements obtained from the combined detection were consistent with those obtained from the separate detection, which suggested that the addition of BrdU 2 h prior to the WST-1 analysis did not affect the WST-1 results. The BrdU measurements obtained from the... |
| Tipo: Journal article |
Palavras-chave: BrdU; WST-1; Cell proliferation; Cell viability; Airway smooth muscle cells. |
| Ano: 2014 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602014000100069 |
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| Tambelline,Natália; Oliveira,Karen; Olchanheski Junior,Luiz Renato; Sordi,Regina; Otuki,Michel Fleith; Favero,Giovani Marino; Fernandes,Daniel. |
| The success of revascularization procedures is limited by recurrent stenosis, which is a narrowing of a blood vessels that results from neo-intimal hyperplasia. The renin-angiotensin-aldosterone system has been implicated in the pathogenesis of neo-intimal hyperplasia, and a role for angiotensin II in vascular smooth muscle cell proliferation has been proposed. There are at least two high-affinity subtypes of angiotensin II receptors, AT1 and AT2, both of which are seven-transmembrane G protein-coupled receptors. We investigated the effect of losartan, an AT1 receptor antagonist, on vascular smooth muscle cell proliferation using the A7r5 smooth cell line derived from rat aorta. Losartan was shown to prevent angiotensin II-induced cell proliferation,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Angiotensin II; Losartan; Cell proliferation. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132012000200012 |
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| Zhang,C.; Yuan,J.; Hu,H.; Chen,W.; Liu,M.; Zhang,J.; Sun,S.; Guo,Z.. |
| Kidney stone disease is a major cause of chronic renal insufficiency. The role of long non-coding RNAs (lncRNAs) in calcium oxalate-induced kidney damage is unclear. Therefore, we aimed to explore the roles of lncRNAs in glyoxylate-exposed and healthy mouse kidneys using microarray technology and bioinformatics analyses. A total 376 mouse lncRNAs were differentially expressed between the two groups. Using BLAST, 15 lncRNA homologs, including AU015836 and CHCHD4P4, were identified in mice and humans. The AU015836 expression in mice exposed to glyoxylate and the CHCHD4P4 expression in human proximal tubular epithelial (HK-2) cells exposed to calcium oxalate monohydrate were analyzed, and both lncRNAs were found to be upregulated in response to calcium... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Kidney calculi; Long non-coding RNAs; Fibrosis; Cell proliferation. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2018000100610 |
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| Zhang,J.; Ma,J.; Wang,H.; Guo,L.; Li,J.. |
| We aimed to investigate the potential role and mechanism of microRNA-30c (miR-30c) in the pathological development of chronic hepatitis B (CHB). The serum levels of miR-30c in hepatitis B virus (HBV) carrier Xinjiang Uygur patients with inactive, low-replicative, high-replicative and HBe antigen-positive CHB were investigated. HepG2 cells were co-transfected with pHBV1.3 and miR-30c mimic or inhibitor or scramble RNA. The effects of miR-30c dysregulation on HBV replication and gene expression, cell proliferation and cell cycle were then investigated. miR-30c was down-regulated in Xinjiang Uygur patients with CHB compared to healthy controls and its expression level discriminated HBV carrier patients with inactive, low-replicative, high-replicative and HBe... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chronic hepatitis B; Disease progression; MicroRNA-30c; Hepatitis B virus replication; Cell proliferation. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017000600601 |
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| Ramalho,F.S.; Ramalho,L.N.Z.; Castro-e-Silva Júnior,O.; Zucoloto,S.; Corrêa,F.M.A.. |
| Bradykinin has been reported to act as a growth factor for fibroblasts, mesangial cells and keratinocytes. Recently, we reported that bradykinin augments liver regeneration after partial hepatectomy in rats. Angiotensin-converting enzyme (ACE) is also a powerful bradykinin-degrading enzyme. We have investigated the effect of ACE inhibition by lisinopril on liver regeneration after partial hepatectomy. Adult male Wistar rats underwent 70% partial hepatectomy (PH). The animals received lisinopril at a dose of 1 mg kg body weight-1 day-1, or saline solution, intraperitoneally, for 5 days before hepatectomy, and daily after surgery. Four to six animals from the lisinopril and saline groups were sacrificed at 12, 24, 36, 48, 72, and 120 h after PH. Liver... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Angiotensin-converting enzyme inhibitors; Lisinopril; Bradykinin; Liver regeneration; Cell proliferation; Hepatocyte. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001000100016 |
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| Pizarro,C.B.; Oliveira,M.C.; Coutinho,L.B.; Ferreira,N.P.. |
| Pituitary adenomas sometimes show rapid growth and recurrence, and about one third invade the structures surrounding the sella turcica. In an attempt to determine aggressive behavior at an early stage, we used the MIB-1 antibody to identify the Ki-67 antigen. The present study was designed to evaluate pituitary adenomatous tissue in terms of secretion and proliferation and to correlate the Ki-67 index with hormone phenotype and invasive behavior. Material from 159 patients submitted to one or more resections of pituitary adenomas was evaluated. Forty-two non-secretory adenomas and 43 adenomas immunoreactive for growth hormone, 19 for prolactin, 18 for growth hormone and prolactin, 16 for adrenocorticotropic hormone (ACTH), and 21 cases of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pituitary adenoma; Invasive adenoma; Ki-67 antigen; MIB-1 antibody; Cell proliferation; Immunohistochemistry. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2004000200011 |
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| Zhang,M.; Gan,L.; Ren,G.S.. |
| REGγ is a proteasome activator that facilitates the degradation of small peptides. Abnormally high expression of REGγ has been observed in thyroid carcinomas. The purpose of the present study was to explore the role of REGγ in poorly differentiated thyroid carcinoma (PDTC). For this purpose, small interfering RNA (siRNA) was introduced to down-regulate the level of REGγ in the PDTC cell line SW579. Down-regulation of REGγ at the mRNA and protein levels was confirmed by RT-PCR and Western blot analyses. FACS analysis revealed cell cycle arrest at the G1/S transition, the MTT assay showed inhibition of cell proliferation, and the Transwell assay showed restricted cell invasion. Furthermore, the expression of the p21 protein was increased, the expression of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: REGγ; PDTC; Cell cycle; Cell proliferation; SW579 cell line; Thyroid carcinoma. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2012000500012 |
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| Du,Qing; Liu,Jia; Zhang,Xuezhi; Zhang,Xin; Zhu,He; Wei,Ming; Wang,Shilei. |
| Propofol is an intravenous sedative hypnotic agent of which the growth-inhibitory effect has been reported on various cancers. However, the roles of propofol in endometrial cancer (EC) remain unclear. This study aimed to explore the effects of propofol on EC in vitro and in vivo. Different concentrations of propofol were used to treat Ishikawa cells. Colony number, cell viability, cell cycle, apoptosis, migration, and invasion were analyzed by colony formation, MTT, flow cytometry, and Transwell assays. In addition, the pcDNA3.1-Sox4 and Sox4 siRNA plasmids were transfected into Ishikawa cells to explore the relationship between propofol and Sox4 in EC cell proliferation. Tumor weight in vivo was measured by xenograft tumor model assay. Protein levels of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Endometrial cancer; Propofol; Cell proliferation; Apoptosis; Sox4; Wnt/β-catenin. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2018000400605 |
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| Franco,C.R.C.; Rocha,H.A.O.; Trindade,E.S.; Santos,I.A.N.; Leite,E.L.; Veiga,S.S.; Nader,H.B.; Dietrich,C.P.. |
| We have examined the role of cell surface glycosaminoglycans in cell division: adhesion and proliferation of Chinese hamster ovary (CHO) cells. We used both wild-type (CHO-K1) cells and a mutant (CHO-745) which is deficient in the synthesis of proteoglycans due to lack of activity of xylosyl transferase. Using different amounts of wild-type and mutant cells, little adhesion was observed in the presence of laminin and type I collagen. However, when fibronectin or vitronectin was used as substrate, there was an enhancement in the adhesion of wild-type and mutant cells. Only CHO-K1 cells showed a time-dependent adhesion on type IV collagen. These results suggest that the two cell lines present different adhesive profiles. Several lines of experimental... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: CHO cells; Extracellular matrix proteins; Proteoglycans; Glycosaminoglycans; Cell adhesion; Cell proliferation. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001000800001 |
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| Qiu,Zhenpeng; Zhou,Junxuan; Zhang,Cong; Cheng,Ye; Hu,Junjie; Zheng,Guohua. |
| An abnormality in the Lin28/let-7a axis is relevant to the progression of hepatitis B virus (HBV)-positive hepatocellular carcinoma (HCC), which could be a novel therapeutic target for this malignant tumor. The present study aimed to investigate the antiproliferative and anti-invasive effects of urolithin A in a stable full-length HBV gene integrated cell line HepG2.2.15 using CCK-8 and transwell assays. The RNA and protein expressions of targets were assessed by quantitative PCR and western blot, respectively. Results revealed that urolithin A induced cytotoxicity in HepG2.2.15 cells, which was accompanied by the cleavage of caspase-3 protein and down-regulation of Bcl-2/Bax ratio. Moreover, urolithin A suppressed the protein expressions of Sp-1, Lin28a,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Urolithin A; Hepatocellular carcinoma; Lin28a; Let-7a; Cell proliferation; HBx. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2018000700602 |
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| Registros recuperados: 38 | |
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