Detection, Purification, Characterization, and Manipulation of Migrasomes

Dong Jiang1, Ying Li1, Li Yu1

  • 1State Key Laboratory of Membrane Biology, Tsinghua University-Peking University Joint Center for Life Sciences, Beijing Frontier Research Center for Biological Structure, School of Life Sciences, Tsinghua University, Beijing, China.

Current Protocols
|August 4, 2023
PubMed

Insights

Migrasomes, newly discovered cellular organelles, are formed by migrating cells and play key roles in development and homeostasis. This study details protocols for their detection, purification, characterization, and manipulation.

Area of Science:

  • Cell Biology
  • Organelle Biology
  • Developmental Biology

Background:

  • Migrasomes are recently identified cellular organelles originating from migrating cells.
  • They form from retraction fibers and are involved in intercellular communication and homeostasis.
  • Their roles in organogenesis, mRNA transfer, and angiogenesis are increasingly recognized.

Purpose of the Study:

  • To provide standardized protocols for the study of migrasomes.
  • To facilitate research on migrasome function and biogenesis.
  • To outline methods for detection, purification, characterization, and manipulation.

Main Methods:

  • Fluorescence microscopy for migrasome detection and observation.
  • Density-gradient centrifugation for migrasome purification from cell lines and embryos.
  • Electron microscopy and biochemical analysis for migrasome characterization.
  • Targeting integrins and tetraspanins for migrasome manipulation.

Main Results:

  • Established protocols for visualizing migrasomes using fluorescence microscopy.
  • Developed methods for purifying migrasomes via density-gradient centrifugation.
  • Detailed techniques for characterizing migrasomes using electron microscopy and biochemical assays.
  • Outlined strategies for manipulating migrasomes through specific molecular targets.

Conclusions:

  • Standardized protocols are crucial for advancing migrasome research.
  • These methods enable comprehensive study of migrasome biogenesis and function.
  • Migrasome research holds significant potential for understanding development and disease.

Related Concept Videos

Proteomics01:33

Proteomics

A proteome is the entire set of proteins that a cell type produces. We can study proteomes using the knowledge of genomes because genes code for mRNAs, and the mRNAs encode proteins. Although mRNA analysis is a step in the right direction, not all mRNAs are translated into proteins.
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term...
7.4K
Cell Migration01:09

Cell Migration

Cell migration, the process by which cells move from one location to another, is essential for the proper development and viability of organisms throughout their life. When cells are not able to migrate properly to their ordained locations, various disorders may occur. For example, disruption in cell migration causes chronic inflammatory diseases such as arthritis.
17.1K
Role of Myosin in Cell Migration01:18

Role of Myosin in Cell Migration

Myosins are multimeric motor proteins involved in various cellular processes such as migration, adhesion, and proliferation. Myosin II is the most common type in animal cells, which binds and cross-links actin filaments.
Myosin II  is a hexamer comprising two heavy chains with globular heads and coiled-coil tails, two regulatory light chains, and two essential light chains. The ATPase sites on the myosin heads hydrolyze ATP, and the released phosphate generates the force for contraction....
2.3K
Mitochondrial Protein Sorting01:39

Mitochondrial Protein Sorting

Mitochondria are double-membrane organelles of the eukaryotes involved in cellular metabolism, signaling, ATP synthesis, and programmed cell death.  Each of these processes requires specific proteins and enzymes that must be correctly sorted to the right mitochondrial subcompartment for the proper functioning of the organelle.
Most of these mitochondrial proteins are encoded by the nucleus and imported to the mitochondria as unfolded or loosely folded precursors. Mitochondrial precursors...
4.4K