Related Experiment Video
Updated: Apr 16, 2026

11:37
Generation of Aggregates of Mouse Embryonic Stem Cells that Show Symmetry Breaking, Polarization and Emergent Collective Behaviour In Vitro
Published on: November 24, 2015
18.7K
[Sponge cell reaggregation: mechanisms and dynamics of the process]
Ontogenez
|March 5, 2015
Summary
Sponge cells (Porifera) can reaggregate after tissue dissociation, showcasing remarkable plasticity. This review synthesizes 20th-century research on sponge cell reaggregation mechanisms, stages, and regenerative potential.
Area of Science:
- Marine biology
- Developmental biology
- Cell biology
Context:
- Sponges (Porifera) exhibit significant anatomical and cellular plasticity.
- Cell reaggregation after tissue dissociation is a key manifestation of this plasticity.
- Understanding sponge cell behavior is crucial for lower metazoan research.
Purpose:
- To review and synthesize historical and current data on sponge cell reaggregation.
- To explore the mechanisms, factors, and stages influencing sponge cell reaggregation.
- To describe the histological structure of reaggregated cell masses and their regenerative potential.
Summary:
- This review consolidates research on sponge cell reaggregation since the early 1900s.
- It details dissociated cell behavior in suspension, reaggregation mechanisms, and influencing factors.
- The review also covers the rate and stages of reaggregation across different sponge species and the histological outcomes.
Impact:
- Provides a comprehensive overview of sponge cell reaggregation phenomena.
- Highlights the regenerative morphogenetic processes from cell aggregates to whole sponges.
- Serves as a foundational resource for studies in cell plasticity and regeneration in basal metazoans.
Related Concept Videos
Cell Motility through Blebbing
2.7K
Blebs are a type of membrane protrusion formed by the internal hydrostatic pressure of the cytoplasm. Blebs are observed in several cell types, including fibroblasts, immune cells, and single-celled organisms like the amoeba. The primary function of blebs is cell locomotion and apoptosis, but they are also found during necrosis and cell division. The life cycle of a bleb comprises an initiation phase followed by the expansion and retraction phases.
Blebbing Through the Matrix
In multicellular...
Blebbing Through the Matrix
In multicellular...
2.7K
Diversity of Protists IV
2.1K
Amoebozoa represent a diverse group of terrestrial and aquatic protists that utilize lobe-shaped pseudopodia for locomotion and feeding. This characteristic differentiates them from the Rhizaria, which possess threadlike pseudopodia. The primary classifications within Amoebozoa include gymnamoebas, entamoebas, and the plasmodial and cellular slime molds. Phylogenetic evidence indicates that Amoebozoa diverged from a lineage that ultimately gave rise to fungi and animals.Gymnamoebas and...
2.1K
Cytoskeletal Coordination in Cell Migration
5.8K
A migrating cell changes its shape during the cyclic events of attachment and detachment from the substratum and repositions the cell organelles correspondingly. These complex events are orchestrated by the dynamic cytoskeletal network comprising actin filaments, intermediate filaments, and microtubules. Cytoskeletal crosstalk — the direct and indirect communication between the different components — is crucial for this coordination. Direct communication involves various linker...
5.8K
Actin Polymerization and Cell Motility
7.3K
Actin is a family of globular proteins that are highly abundant in eukaryotic cells. It makes up approximately 1-5% of total cell protein concentration. Actin monomers polymerize to form a complex network of polarized filaments, the actin cytoskeleton, that plays a crucial role in many cellular processes, including cell motility, division, endocytosis, and metastasis of cancer cells.
Actin cytoskeleton dynamics can produce pushing, pulling, and resistance forces that help the cell to migrate....
Actin cytoskeleton dynamics can produce pushing, pulling, and resistance forces that help the cell to migrate....
7.3K
Mechanism of Filopodia Formation
3.5K
Filopodia are thin, actin-rich cellular protrusions that play an important role in many fundamental cellular functions. They vary in their occurrence, length, and positioning in different cell types, suggesting their diverse roles.
Their main function is to guide migrating cells during normal tissue morphogenesis or cancer metastasis by recognizing and making initial contacts with the extracellular matrix. However, they can also act as stationary cell anchors or help to establish communication...
Their main function is to guide migrating cells during normal tissue morphogenesis or cancer metastasis by recognizing and making initial contacts with the extracellular matrix. However, they can also act as stationary cell anchors or help to establish communication...
3.5K
Mechanisms of Membrane Domain Formation
4.5K
Different physical properties of lipids and proteins allow them to localize and form distinct islands or domains in the membrane. Some membrane domains are formed due to protein-protein interactions, whereas others are formed due to the presence of specific lipids such as sphingolipids and sterols—for example, large proteins, such as bacteriorhodopsin, aggregate and create distinct domains.
Another mechanism for membrane domain formation involves membrane proteins interacting with...
Another mechanism for membrane domain formation involves membrane proteins interacting with...
4.5K

