Výsledky vyhledávání - "Víctor T. Contreras"

Akademický článek

Trypanosoma cruzi: metacyclogenesis in vitro - I. Changes in the properties of metacyclic trypomastigotes maintained in the laboratory by different methods

Autor: Víctor T. Contreras, Wolfan Araque, Víctor S. Delgado

Publikováno v: Memorias do Instituto Oswaldo Cruz, Vol 89, Iss 2, Pp 253-259 (1994)

In this work we have studied the modifications in the biological properties of Trypanosoma cruzi when the parasite is maintained for a long time in axenic culture. The studies were done with a clone from an avirulent strain (Dm30L) and a non-cloned v

Externí odkaz: https://doaj.org/article/e88470b5abab44ffb4fcdcb643d78807

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Growth arrest and morphological changes triggered by emodin on Trypanosoma cruzi epimastigotes cultivated in axenic medium

Autor: José Bubis, Ana Rita De Lima, Karem Noris-Suárez, Luis Pérez-Ybarra, Antonio Bretaña, María Consuelo Navarro, Víctor T Contreras

Publikováno v: Biochimie. 142:31-40

Emodin is an anthraquinone obtained from Rheum palmatum rootstocks. Here we tested the cytotoxic effects of emodin on Trypanosoma cruzi epimastigotes, as well as the morphological changes that were induced by this compound in the parasite. Emodin was

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c0906950aa3e7d0045c3a09f1d023810
https://doi.org/10.1016/j.biochi.2017.08.005

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Recently differentiated epimastigotes fromTrypanosoma cruziare infective to the mammalian host

Autor: Michel Batista, Marco Aurélio Krieger, Newmar Pinto Marliére, Luz Helena Villamizar Silva, Vanete Thomaz Soccol, Víctor T Contreras, Christian Probst, Alessandra A. Guarneri, Rafael Luis Kessler, Giovanny Augusto Camacho Antevere Mazzarotto

Publikováno v: Molecular Microbiology. 104:712-736

Trypanosoma cruzi, the etiologic agent of Chagas disease, has a complex life cycle in which four distinct developmental forms alternate between the insect vector and the mammalian host. It is assumed that replicating epimastigotes present in the inse

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::759e2b87802431a1cad25d1372de3e79
https://doi.org/10.1111/mmi.13653

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Cultivation of Trypanosoma cruzi epimastigotes in low glucose axenic media shifts its competence to differentiate at metacyclic trypomastigotes

Autor: María Consuelo Navarro, Rosa Yanet Arteaga, Víctor T Contreras, Ana Rita De Lima

Publikováno v: Experimental Parasitology. 119:336-342

This study offers an insight into why Trypanosoma cruzi epimastigotes lose their capacity to differentiate into metacyclic forms, if maintained in culture media long-term through serial passages. The biological and metabolic behaviour of two T. cruzi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ea74ba80ad572b23195c1118c4184d5
https://doi.org/10.1016/j.exppara.2008.03.003

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Tight binding between a pool of the heterodimeric α/β tubulin and a protein kinase CK2 inTrypanosoma cruziepimastigotes

Autor: Rosa Yanet Arteaga, José Bubis, Graciela L. Uzcanga, Víctor T Contreras, Rafael Medina, K. Noris Suarez, A. R. De Lima, María Consuelo Navarro

Publikováno v: Parasitology. 132:511-523

Tubulin is the predominant phosphoprotein inTrypanosoma cruziepimastigotes and is phosphorylated by a protein kinase CK2. Interestingly, the presence or absence of divalent cations affected the solubilization of a pool of the parasite tubulin and the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0e04f181b02ce0d52d195d503e8d2876
https://doi.org/10.1017/s0031182005009352

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Production of amastigotes from metacyclic trypomastigotes of Trypanosoma cruzi

Autor: Ana Rita De Lima, Rosa Yanet Arteaga, Francy Duran, Víctor T Contreras, María Consuelo Navarro, José Askue, Yunaimy Franco

Publikováno v: Memórias do Instituto Oswaldo Cruz., Vol 97, Iss 8, Pp 1213-1220 (2002)
Memórias do Instituto Oswaldo Cruz, Volume: 97, Issue: 8, Pages: 1213-1220, Published: DEC 2002

Attempts to recreate all the developmental stages of Trypanosoma cruzi in vitro have thus far been met with partial success. It is possible, for instance, to produce trypomastigotes in tissue culture and to obtain metacyclic trypomastigotes in axenic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c55376d080da9aaa15e79956f93da435
https://doi.org/10.1590/s0074-02762002000800025

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Morphological comparison of axenic amastigogenesis of trypomastigotes and metacyclic forms of Trypanosoma cruzi

Autor: José Askue, María Consuelo Navarro, Víctor T Contreras, Ana Rita De Lima

Publikováno v: Memórias do Instituto Oswaldo Cruz, Volume: 98, Issue: 1, Pages: 83-91, Published: JAN 2003
Memórias do Instituto Oswaldo Cruz., Vol 98, Iss 1, Pp 83-91 (2003)

Amastigogenesis occurs first when metacyclic trypomastigotes from triatomine urine differentiate into amastigotes inside mammalian host cells and a secondary process when tissue-derived trypomastigotes invade new cells and differentiate newly to amas

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e905e78ad2ca460dfa88bfa35d60e233
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762003000100012&lng=en&tlng=en

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Early and late molecular and morphologic changes that occur during the in vitro transformation of Trypanosoma cruzi metacyclic trypomastigotes to amastigotes

Autor: Ana Rita De Lima, María Consuelo Navarro, Víctor T Contreras, Rosa Yanet Arteaga, Yunaimy Franco, Francy Duran

Publikováno v: Biological Research v.35 n.1 2002
SciELO Chile
CONICYT Chile
instacron:CONICYT
Biological Research, Volume: 35, Issue: 1, Pages: 47-58, Published: 2002
Biological Research, Vol 35, Iss 1, Pp 47-58 (2002)

The amastigogenesis primary of T. cruzi occurs naturally when metacyclic trypomastigotes transform into amastigotes within the cells of the mammalian host. The in vitro study of the macromolecular changes that occur over several days during the trans

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e91a9c0858cc326e1e3ee86c6ce15ae1
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602002000100008

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An unusual casein kinase 1 from Trypanosoma cruzi epimastigotes

Autor: Karem Noris-Suárez, José Bubis, Ana Rita De Lima, Víctor T Contreras, Irene Justiniano

Publikováno v: Biochemical Compounds. 2:1

Background: CK1 enzymes are serine/threonine protein kinases that regulate numerous cellular processes. Although seven putative CK1 ortholog genes have been identified in the genome of Trypanosoma

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::47a7f31016ef18b5c0db15389a16ca97
https://doi.org/10.7243/2052-9341-2-1

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Trypanosoma cruzi: maintenance in culture modify gene and antigenic expression of metacyclic trypomastigotes

Autor: Víctor T Contreras, Ana Rita De Lima, Gelu Zorrilla

Publikováno v: Memórias do Instituto Oswaldo Cruz., Vol 93, Iss 6, p 753 (1998)
Memórias do Instituto Oswaldo Cruz, Volume: 93, Issue: 6, Pages: 753-760, Published: NOV 1998

In this study we examined whether the maintenance of Trypanosoma cruzi by long-time in axenic culture produces changes in gene expression and antigenic profiles. The studies were made with a Dm30L-clone from a low-virulent strain and a non-cloned vir

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7b42c5de3d117f03bf5d1eb05e631d1c
https://pubmed.ncbi.nlm.nih.gov/9921298

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