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Updated: Oct 21, 2025

Nuclear Migration in the Drosophila Oocyte
Published on: May 13, 2021
Migrasome biogenesis and functions
Shunbang Yu1, Li Yu1
1State Key Laboratory of Membrane Biology, Beijing Frontier Research Center for Biological Structure, School of Life Science, Tsinghua University-Peking University Joint Center for Life Sciences, Tsinghua University, Beijing, China.
Abstract:
The migrasome is a newly discovered organelle produced by migrating cells. As cells migrate, long and thin retraction fibers are left in their wake. On these fibers, we discovered the production of a pomegranate-like structure, which we named migrasomes. The production of migrasomes is highly correlated with the migration of cells. Currently, it has been demonstrated the migrasomes exhibit three modes of action: release of signaling molecules through rupturing or leaking, carriers of damaged mitochondria, and lateral transfer of mRNA or proteins. In this review, we would like to discuss, in detail, the functions, mechanisms, and potential applications of this newly discovered cell organelle.
Insights
Migrasomes are novel organelles formed by migrating cells on retraction fibers. These structures are involved in cell signaling, damaged mitochondria transport, and molecule transfer, highlighting their diverse cellular roles.
Area of Science:
- Cell Biology
- Organelle Discovery
Background:
- Migrating cells leave behind retraction fibers.
- A novel pomegranate-like structure, the migrasome, is discovered on these fibers.
- Migrasome production correlates with cell migration.
Approach:
- This review discusses the functions, mechanisms, and potential applications of migrasomes.
- Detailed examination of migrasome's role in cellular processes.
Key Points:
- Migrasomes are newly identified organelles produced by migrating cells.
- Functions include releasing signaling molecules, transporting damaged mitochondria, and transferring mRNA/proteins.
- Highly correlated with cell migration.
Conclusions:
- Migrasomes represent a significant discovery in cell biology.
- Understanding migrasomes opens avenues for potential therapeutic applications.
- Further research into migrasome mechanisms is warranted.
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