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Updated: Aug 5, 2026
09:01
Using Solution NMR to Characterize Biomolecular Condensates Under Biphasic Conditions
Published on: April 17, 2026
Condensates on the Move: Midbody Remnants as Large, Translation-Competent Extracellular Vesicles
1Laboratory of Genetics, UW-Madison, Madison, Wisconsin, USA.
Summary
Midbody remnants (MBRs) are large, translationally competent extracellular vesicles released during cell division. These cell-like vesicles contain machinery for protein synthesis, offering potential for therapeutic applications.
Area of Science:
- Cell Biology
- Extracellular Vesicles
- Mitosis
Background:
- Extracellular vesicle (EV) biology is expanding with the discovery of midbody remnants (MBRs).
- MBRs are large vesicles released during mitosis, possessing unique molecular compositions.
- They differ from exosomes and microvesicles, exhibiting organelle-rich, cell-like properties.
Purpose of the Study:
- To review current knowledge on MBR biogenesis, molecular organization, and translational competence.
- To contrast MBRs with canonical and other large EVs.
- To discuss potential roles of MBRs in biological processes and disease.
Main Methods:
- Literature review of MBR research.
- Comparative analysis of MBRs with other EV types.
- Discussion of outstanding mechanistic and physiological questions.
Main Results:
- MBRs contain ribosomes, mitochondria, translation factors, mRNAs, and small RNAs.
- They form a ribonucleoprotein core supporting post-release protein synthesis.
- MBRs represent a continuum of large EVs with cell-like characteristics.
Conclusions:
- MBRs are translationally competent extracellular vesicles with unique features.
- Further research is needed to understand MBR regulation, interactions, and therapeutic potential.
- MBRs may offer advantages for biotechnological and therapeutic applications.
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