Consulta: creatorFacets:"Ferreira,Arturo"
Registros recuperados: 4
Data/hora: 07/06/2024 09:41:57

A Tribute to Professor Gustavo Hoecker Salas
Provedor de dados: 48
Autores: Ferreira,Arturo; Valenzuela,Carlos; Santos,Manuel J.
Tipo: Journal article
Ano: 2010
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602010000300001

Celecoxib decreases growth and angiogenesis and promotes apoptosis in a tumor cell line resistant to chemotherapy
Provedor de dados: 48
Autores: Rosas,Carlos; Sinning,Mariana; Ferreira,Arturo; Fuenzalida,Marcela; Lemus,David.
BACKGROUND: During the last few years it has been shown in several laboratories that Celecoxib (Cx), a non-steroidal anti-inflammatory agent (NSAID) normally used for pain and arthritis, mediates antitumor and antiangiogenic effects. However, the effects of this drug on a tumor cell line resistant to chemotherapeutical drugs used in cancer have not been described. Herein we evaluate the angiogenic and antitumor effects of Cx in the development of a drug-resistant mammary adenocarcinoma tumor (TA3-MTXR). RESULTS: Cx reduces angiogenesis in the chick embryonic chorioallantoic membrane assay (CAM), inhibits the growth and microvascular density of the murine TA3-MTXR tumor, reduces microvascular density of tumor metastases, promotes apoptosis and reduces...
Tipo: Journal article
Palavras-chave: Angiogenesis; Celecoxib; Tumor.
Ano: 2014
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602014000100027

Betamethasone inhibits tumor development, microvessel density and prolongs survival in mice with a multiresistant adenocarcinoma TA3
Provedor de dados: 48
Autores: Garrido,Osvaldo; Letelier,René; Rosas,Carlos; Fuenzalida,Marcela; Ferreira,Arturo; Lemus,David.
Tumor resistance to traditional cancer treatments poses an important challenge to modern science. Thus, angiogenesis inhibition is an important emerging cancer treatment. Many drugs are tested and corticosteroids have shown interesting results. Herein we investigate the effect on microvessel density, survival time and tumoral volume of mice with TA3-MTX-R tumors. Twenty six mice were inoculated with lxlO6 tumor cells, 4-5 days after injection, six mice were injected with PBS (group A) and twenty mice were treated with p-met (group B). All animals from Group A died on day 22. Group B was divided into Bl (treated discontinued) and B2 (treated daily) and observed until day 88. All mice were processed for histo-immunohistochemical analysis and the blood...
Tipo: Journal article
Palavras-chave: Angiogenesis; Betamethasone treatment; Metastasis.
Ano: 2010
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602010000300008

Comparative in vivo antiangiogenic effects of calreticulin from Trypanosoma cruzi and Homo sapiens sapiens
Provedor de dados: 48
Autores: Toledo,Victor; Ramírez,Galia; Valck,Carolina; López,Nandy; Ribeiro,Carolina H; Maldonado,Ismael; Aguilar,Lorena; Lemus,David; Ferreira,Arturo.
Angiogenesis is a complex multi-step process of neovascularization arising from preexisting blood vessels whose generation is regulated by pro- and anti-angiogenic factors. Both Trypanosoma cruzi calreticulin (TcCRT) and its human counterpart (HuCRT) are antiangiogenic. This is the first report where the TcCRT and HuCRT anti-angiogenic properties are compared in vivo. In the chick embryonic chorioallantoid membrane assay (CAM) and at equimolar concentrations, TcCRT displayed significantly higher antiangiogenic activities than its human counterpart. LPS had marginal effects at the concentrations present in the recombinant protein preparations and the TcCRT antiangiogenic effects were largely inhibited by specific polyclonal antibodies, thus, reinforcing the...
Tipo: Journal article
Palavras-chave: Calreticulin; T. cruzi; Anti-angiogenesis.
Ano: 2010
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602010000300004