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CONICET Digital
Article . 2017
License: CC BY NC SA
Data sources: CONICET Digital
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Eritropoyesis : mecanismos moleculares que favorecen la maduración eritroide

Authors: Grosso, Rubén Adrián; Salassa, Betiana Nebaí; Tonelli, Alejandro; Fader Kaiser, Claudio Marcelo;

Eritropoyesis : mecanismos moleculares que favorecen la maduración eritroide

Abstract

En células eucariotas, la autofagia es un proceso catabólico que participa en aislar componentes celulares dentro de vesículas y llevarlos a los lisosomas para su degradación. Este proceso cumple un rol muy activo durante la eritropoyesis, siendo responsable de eliminar organelas que no son necesarias en el glóbulo rojo maduro. El mecanismo por el cual se activa la autofagia en la eritropoyesis requiere de estudios celulares con mayor profundidad para su correcto entendimiento. En el presente estudio demostramos que hemina, un compuesto fisiológico capaz de estimular la maduración eritroide, puede inducir la estimulación de la autofagia en células K562 (eritroblastos de leucemia mieloide crónica). No obstante hemina induce la despolarización y el consecuente secuestro de mitocondrias por parte de vesículas específicas de la vía autofágica llamadas autofagosomas. La importancia de este trabajo es aportar información básica relevante de la función de la autofagia en células cancerosas con proyección en la terapéutica de la leucemia.

In eukaryotic cells, autophagy is catabolic process which participates in isolate cellular components within vesicles and targeting to lysosomes for its degradation. This process plays a highly active role during erythropoiesis being responsible of eliminating non-necessary organells in the mature red blood cell. The mechanism by which autophagy is activated during erythropoiesis requires more thorough studies. In the present work we demonstrated that hemin, a physiological compound capable of stimulating erythroid maturation, may induce the stimulation of autophagy in K562 cells (CML erythroblast). Nonetheless, hemin induces mitochondrial depolarization and its subsequent engulfment by specific autophagy vesicles called autophagosomes. The relevance of this study is to give basic information regarding the aim of autophagy in cancer cells and future leukemia therapeutic outreach.

Fil: Grosso, Rubén. Universidad Nacional de Cuyo. Facultad de Ciencias Médicas. Laboratorio de Biología Celular y Molecular IHEM-CONICET CCT.

Fil: Tonelli, Alejandro. Universidad Nacional de Cuyo. Facultad de Odontología

Fil: Salassa, Betiana. Universidad Nacional de Cuyo. Facultad de Odontología

Fil: Fader, Claudio. Universidad Nacional de Cuyo. Facultad de Odontología

Country
Argentina
Keywords

Células Eucariotas, Eritropoyesis, ERITOPOYESIS, LEUCEMIA, AUTOFAGIA, https://purl.org/becyt/ford/3.1, LC3, Autofagia, Leucemia, https://purl.org/becyt/ford/3, Macroautofagia

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green
Related to Research communities
Cancer Research