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Control of Cell Differentiation by Mitochondria, Typically Evidenced in Dictyostelium Development
Department of Developmental Biology and Neurosciences, Graduate School of Life Sciences, Tohoku University, Aoba, Sendai 980-8578, Japan
Division of Molecular Neurobiology, Institute for Enzyme Research, The University of Tokushima, Kuramoto-cho, Tokushima 770-8503, Japan
* Author to whom correspondence should be addressed.
Received: 28 September 2013; in revised form: 1 November 2013 / Accepted: 2 November 2013 / Published: 11 November 2013
Abstract: In eukaryotic cells, mitochondria are self-reproducing organelles with their own DNA and they play a central role in adenosine triphosphate (ATP) synthesis by respiration. Increasing evidence indicates that mitochondria also have critical and multiple functions in the initiation of cell differentiation, cell-type determination, cell movement, and pattern formation. This has been most strikingly realized in development of the cellular slime mold Dictyostelium. For example, the expression of the mitochondrial ribosomal protein S4 (mt-rps4) gene is required for the initial differentiation. The Dictyostelium homologue (Dd-TRAP1) of TRAP-1 (tumor necrosis receptor-associated protein 1), a mitochondrial molecular chaperone belonging to the Hsp90 family, allows the prompt transition of cells from growth to differentiation through a novel prestarvation factor (PSF-3) in growth medium. Moreover, a cell-type-specific organelle named a prespore-specific vacuole (PSV) is constructed by mitochondrial transformation with the help of the Golgi complex. Mitochondria are also closely involved in a variety of cellular activities including CN-resistant respiration and apoptosis. These mitochondrial functions are reviewed in this article, with special emphasis on the regulation of Dictyostelium development.
Keywords: differentiation; mitochondria; mitochondrial ribosomal protein S4 (mt-RPS4); tumor necrosis receptor-associated protein 1 (TRAP-1); CN-resistant respiration; prespore-specific vacuole (PSV); Dictyostelium; ESC
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Maeda, Y.; Chida, J. Control of Cell Differentiation by Mitochondria, Typically Evidenced in Dictyostelium Development. Biomolecules 2013, 3, 943-966.
Maeda Y, Chida J. Control of Cell Differentiation by Mitochondria, Typically Evidenced in Dictyostelium Development. Biomolecules. 2013; 3(4):943-966.
Maeda, Yasuo; Chida, Junji. 2013. "Control of Cell Differentiation by Mitochondria, Typically Evidenced in Dictyostelium Development." Biomolecules 3, no. 4: 943-966.