Lysosome: The metabolic signaling hub.

Lysosome: The metabolic signaling hub.
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DOI:
10.1111/tra.12617
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发表时间:
2019-01
期刊:
Traffic (Copenhagen, Denmark)
影响因子:
--
通讯作者:
Bar-Peled L
Bar-Peled L
中科院分区:
其他
文献类型:
--
作者:
Lamming DW;Bar-Peled L

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For the past five decades the lysosome has been characterized as an unglamorous cellular recycling center. This notion has undergone a radical shift in the last ten years, with new research revealing that this organelle serves as a major hub for metabolic signaling pathways. The discovery that master growth regulators, including the protein kinase mTOR (mechanistic Target Of Rapamycin) make their home at the lysosomal surface has generated intense interest in the lysosome’s key role in nutrient sensing and cellular homeostasis. The transcriptional networks required for lysosomal maintenance and function are just being unraveled and their connection to lysosome-based signaling pathways revealed. The catabolic and anabolic pathways that converge on the lysosome connect this organelle with multiple facets of cellular function; when these pathways are deregulated they underlie multiple human diseases, and promote cellular and organismal aging. Thus, understanding how lysosome-based signaling pathways function will not only illuminate the fascinating biology of this organelle but will also be critical in unlocking its therapeutic potentials. After decades of being known as just the cellular recycling center, the lysosome has recently emerged as a central hub for metabolic signaling. Signaling pathways that call the lysosome home connect this organelle to key anabolic and catabolic processes that control many facets of cellular metabolism. Metabolic signals emanating from the lysosome are contributors to multiple human diseases, emphasizing the key role of the lysosome as a cellular site for the regulation of human health.
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