Artículo

Vilchez Larrea, S.C.; Alonso, G.D.; Schlesinger, M.; Torres, H.N.; Flawiá, M.M.; Fernández Villamil, S.H. "Poly(ADP-ribose) polymerase plays a differential role in DNA damage-response and cell death pathways in Trypanosoma cruzi" (2011) International Journal for Parasitology. 41(3):405-416
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Abstract:

Poly(ADP-ribosyl)ation is a post-translational modification of proteins. Poly(ADP-ribose) polymerase (PARP) and poly(ADP-ribose) glycohydrolase (PARG) are the enzymes responsible for poly(ADP-ribose) (PAR) polymer metabolism and are present in most higher eukaryotes. The best understood role of PARP is the maintenance of genomic integrity either via promotion of DNA repair at low levels of genotoxic stress or via promotion of cell death at higher levels of damage. The unicellular eukaryote Trypanosoma cruzi, as opposed to humans and other organisms, has only one PARP (TcPARP) and one PARG (TcPARG). In the present study we show that under different DNA-damaging agents (H2O2 or UV-C radiation) TcPARP is activated and translocated from the cytosol to the nucleus, while TcPARG always shows a nuclear localisation. Parasites in the presence of PARP or PARG inhibitors, as well as parasites over-expressing either TcPARP or TcPARG, suggested that PAR metabolism could be involved in different phases of cell growth, even in the absence of DNA damage. We also believe that we provide the first reported evidence that different proteins could be poly(ADP-ribosyl)ated in response to different stimuli, leading to different cell death pathways. © 2010 Australian Society for Parasitology Inc.

Registro:

Documento: Artículo
Título:Poly(ADP-ribose) polymerase plays a differential role in DNA damage-response and cell death pathways in Trypanosoma cruzi
Autor:Vilchez Larrea, S.C.; Alonso, G.D.; Schlesinger, M.; Torres, H.N.; Flawiá, M.M.; Fernández Villamil, S.H.
Filiación:Instituto de Investigaciones en Ingeniería Genética y Biología Molecular, Consejo Nacional de Investigaciones Científicas y Técnicas, Ciudad Autónoma de Buenos Aires, Vuelta de Obligado 2490, 1428 Buenos Aires, Argentina
Departamento de Fisiología, Biología Molecular y Celular, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina
Departamento de Química Biológica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Argentina
Palabras clave:Cell death; DNA repair; PARG; PARP; Trypanosoma cruzi; hydrogen peroxide; nicotinamide adenine dinucleotide adenosine diphosphate ribosyltransferase; DNA; eukaryote; genotoxicity; inhibitor; metabolism; parasite; polymerase chain reaction; protein; apoptosis; article; cell growth; cell nucleus; controlled study; cytosol; DNA damage; enzyme activation; enzyme activity; gene translocation; nonhuman; nuclear localization signal; nucleotide sequence; protein expression; Trypanosoma cruzi; ultraviolet radiation; Animals; Cell Death; Cell Nucleus; DNA Damage; DNA Repair; Glycoside Hydrolases; Poly(ADP-ribose) Polymerases; Protozoan Proteins; Trypanosoma cruzi; Eukaryota; Protista; Trypanosoma cruzi
Año:2011
Volumen:41
Número:3
Página de inicio:405
Página de fin:416
DOI: http://dx.doi.org/10.1016/j.ijpara.2010.11.008
Título revista:International Journal for Parasitology
Título revista abreviado:Int. J. Parasitol.
ISSN:00207519
CODEN:IJPYB
CAS:hydrogen peroxide, 7722-84-1; nicotinamide adenine dinucleotide adenosine diphosphate ribosyltransferase, 58319-92-9; Glycoside Hydrolases, 3.2.1.-; Poly(ADP-ribose) Polymerases, 2.4.2.30; Protozoan Proteins; poly ADP-ribose glycohydrolase, 3.2.1.143
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00207519_v41_n3_p405_VilchezLarrea

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Citas:

---------- APA ----------
Vilchez Larrea, S.C., Alonso, G.D., Schlesinger, M., Torres, H.N., Flawiá, M.M. & Fernández Villamil, S.H. (2011) . Poly(ADP-ribose) polymerase plays a differential role in DNA damage-response and cell death pathways in Trypanosoma cruzi. International Journal for Parasitology, 41(3), 405-416.
http://dx.doi.org/10.1016/j.ijpara.2010.11.008
---------- CHICAGO ----------
Vilchez Larrea, S.C., Alonso, G.D., Schlesinger, M., Torres, H.N., Flawiá, M.M., Fernández Villamil, S.H. "Poly(ADP-ribose) polymerase plays a differential role in DNA damage-response and cell death pathways in Trypanosoma cruzi" . International Journal for Parasitology 41, no. 3 (2011) : 405-416.
http://dx.doi.org/10.1016/j.ijpara.2010.11.008
---------- MLA ----------
Vilchez Larrea, S.C., Alonso, G.D., Schlesinger, M., Torres, H.N., Flawiá, M.M., Fernández Villamil, S.H. "Poly(ADP-ribose) polymerase plays a differential role in DNA damage-response and cell death pathways in Trypanosoma cruzi" . International Journal for Parasitology, vol. 41, no. 3, 2011, pp. 405-416.
http://dx.doi.org/10.1016/j.ijpara.2010.11.008
---------- VANCOUVER ----------
Vilchez Larrea, S.C., Alonso, G.D., Schlesinger, M., Torres, H.N., Flawiá, M.M., Fernández Villamil, S.H. Poly(ADP-ribose) polymerase plays a differential role in DNA damage-response and cell death pathways in Trypanosoma cruzi. Int. J. Parasitol. 2011;41(3):405-416.
http://dx.doi.org/10.1016/j.ijpara.2010.11.008