Manioc : Portail | resultats 1 - 20 pour la recherche: Martinet, J

Éditeur(s) : HAL CCSD Landes Bioscience
Résumé : International audience
In 2008 we published the first set of guidelines for standardizing research in autophagy. Since then, research on this topic has continued to accelerate, and many new scientists have entered the field. Our knowledge base and relevant new technologies have also been expanding. Accordingly, it is important to update these guidelines for monitoring autophagy in different organisms. Various reviews have described the range of assays that have been used for this purpose. Nevertheless, there continues to be confusion regarding acceptable methods to measure autophagy, especially in multicellular eukaryotes. A key point that needs to be emphasized is that there is a difference between measurements that monitor the numbers or volume of autophagic elements (e.g., autophagosomes or autolysosomes) at any stage of the autophagic process vs. those that measure flux through the autophagy pathway (i.e., the complete process); thus, a block in macroautophagy that results in autophagosome accumulation needs to be differentiated from stimuli that result in increased autophagic activity, defined as increased autophagy induction coupled with increased delivery to, and degradation within, lysosomes (in most higher eukaryotes and some protists such as Dictyostelium) or the vacuole (in plants and fungi). In other words, it is especially important that investigators new to the field understand that the appearance of more autophagosomes does not necessarily equate with more autophagy. In fact, in many cases, autophagosomes accumulate because of a block in trafficking to lysosomes without a concomitant change in autophagosome biogenesis, whereas an increase in autolysosomes may reflect a reduction in degradative activity. Here, we present a set of guidelines for the selection and interpretation of methods for use by investigators who aim to examine macroautophagy and related processes, as well as for reviewers who need to provide realistic and reasonable critiques of papers that are focused on these processes. These guidelines are not meant to be a formulaic set of rules, because the appropriate assays depend in part on the question being asked and the system being used. In addition, we emphasize that no individual assay is guaranteed to be the most appropriate one in every situation, and we strongly recommend the use of multiple assays to monitor autophagy. In these guidelines, we consider these various methods of assessing autophagy and what information can, or cannot, be obtained from them. Finally, by discussing the merits and limits of particular autophagy assays, we hope to encourage technical innovation in the field.
Autophagy

hal-00735751
https://hal.archives-ouvertes.fr/hal-00735751
PUBMED : 22966490

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Vingt années de la vie d'un négrier. 1
Auteur(s) : Canot, Théodore (1806-1860)

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Rapport sur les questions coloniales adressé à M. le duc de Broglie,... à la suite d'un voyage fait aux Antilles et aux Guyanes pendant les années 1838 et 1839. Tome II, Documents et pièces justificatives. Deuxième partie, Etude de l'émancipation dans les colonies anglaises depuis l'année 1833 jusqu'au 3 décembre 1842
Auteur(s) : Lechevalier Saint-André, Jules (1806-1862)
Année de publication :

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Mémoires pour servir à l'histoire de Cayenne et de la Guiane françoise : dans lesquels on fait connoître la nature du climat de cette contrée, les maladies qui attaquent les Européens nouvellement arrivés, & celles qui règnent sur les Blancs & les Noirs, des observations sur l'histoire naturelle du pays, & sur la culture des terres : avec des planches. Tome second
Auteur(s) : Bajon, Bertrand (1739-1796)
Année de publication :

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Statistique générale et particulière de la France et de ses colonies avec une nouvelle description topographique, physique, agricole, politique, industrielle et commerciale T.5
Auteur(s) : Herbin de Halle, Pierre Etienne (1772-18..)
Auteurs secondaires : Poirson, Jean-Baptiste (1760-1831) Tardieu, Jean Baptiste Pierre (1746-1816)
Année de publication :

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Fishery externalities and biodiversity: Trade-offs between the viability of shrimp trawling and the conservation of Frigatebirds in French Guiana
Auteur(s) : Martinet, Vincent Blanchard, Fabian

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