期刊
EXPERIMENTAL EYE RESEARCH
卷 209, 期 -, 页码 -出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.exer.2021.108682
关键词
Differentiation; Development; Lens; Organelle regulation; Nucleus; Mitochondria; Endoplasmic reticulum; Golgi apparatus; Transcriptional regulation; Chromatin; Autophagy; Hypoxia
资金
- NIH/NEI [RO1 EY026478]
A hallmark feature of lens development and differentiation is the complete elimination of organelles from the center of the eye lens. Recent advances in understanding the mechanisms of organelle elimination during terminal remodeling have shed light on signaling pathways, proteasomal regulators, autophagy proteins, transcription factors, and the hypoxic environment of the lens. These discoveries suggest that distinct mechanisms coordinate the elimination of various organelles during lens fiber cell differentiation, with implications for a wide range of fields.
A hallmark feature of lens development and differentiation is the complete elimination of organelles from the center of the eye lens. A long unanswered question in lens biology is what are the mechanisms that control the elimination of organelles during the terminal remodeling program to form mature lens fiber cells? Recent advances have expanded our understanding of these mechanisms including newly discovered signaling pathways, proteasomal regulators, autophagy proteins, transcription factors and the hypoxic environment of the lens itself. These recent discoveries suggest that distinct mechanisms coordinate the elimination of the nucleus, mitochondria, endoplasmic reticulum and Golgi apparatus during lens fiber cell differentiation. Since regulation of organelle number and distribution is also a feature of the terminal remodeling programs of more complex celltypes and tissues, these advances are likely to impact a wide-variety of fields.
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