Related Experiment Video
Updated: Jul 2, 2026

08:00
Derivation of Cardiac Progenitor Cells from Embryonic Stem Cells
Published on: January 12, 2015
Role of gap junctions in embryonic and somatic stem cells
Raymond C B Wong1, Martin F Pera, Alice Pébay
1Department of Biological Chemistry, University of California Irvine, Irvine, CA, USA. raymond.wong@uci.edu
Stem Cell Reviews
|August 16, 2008
Summary
Stem cells are crucial for cell replacement therapies. Gap junctional intercellular communication (GJIC) in stem cells regulates proliferation, differentiation, and apoptosis, offering therapeutic potential.
Area of Science:
- Stem cell biology
- Cellular communication
- Regenerative medicine
Background:
- Stem cells are vital for repairing damaged tissues.
- Understanding stem cell communication is key to therapeutic applications.
- Gap junctional intercellular communication (GJIC) is present in various stem cell types.
Purpose of the Study:
- To review the role of gap junctions in embryonic and somatic stem cells.
- To explore the involvement of GJIC in stem cell behavior.
- To highlight the potential of GJIC in stem cell-based therapies.
Main Methods:
- Literature review of studies on gap junctions and stem cells.
- Analysis of GJIC's role in stem cell pluripotency and differentiation.
- Examination of GJIC's influence on stem cell proliferation and apoptosis.
Main Results:
- GJIC is a significant factor in regulating stem cell functions.
- Gap junctions play a role in maintaining stem cell pluripotency.
- GJIC influences stem cell differentiation, proliferation, and apoptosis.
Conclusions:
- Gap junctions are critical for stem cell regulation.
- Targeting GJIC may offer new avenues for regenerative medicine.
- Further research into GJIC in stem cells is warranted for therapeutic development.
Related Concept Videos
Gap Junctions
Multicellular organisms employ a variety of ways for cells to communicate with each other. Gap junctions are specialized proteins that form pores between neighboring cells in animals, connecting the cytoplasm between the two, and allowing for the exchange of molecules and ions. They are found in a wide range of invertebrate and vertebrate species, mediate numerous functions including cell differentiation and development, and are associated with numerous human diseases, including cardiac and...
Gap Junctions
The cytoplasm of adjacent animal cells can exchange small molecules, ions, and secondary messengers via the communication channels which form the gap junctions. These junctions comprise a few hundred to thousands of molecular channels, each made of two halves, called the connexon hemichannel. A connexon is a hexamer of six transmembrane connexin proteins, which assemble radially, thus forming a pore or channel in the center. One connexon hemichannel docks with a corresponding connexon on the...
Role Of Notch Signalling In Intestinal Stem Cell Renewal
Notch signaling was first discovered in Drosophila melanogaster, where it is involved in cell lineage differentiation. Notch signaling regulates the maintenance and differentiation of intestinal stem cells or ISCs by controlling the expression of atonal homolog 1 or Atoh1. Atoh1 directs cells to differentiate into secretory cells.
Direct cell-to-cell contact is needed for the activation of Notch signaling. The signal is initiated when a notch ligand binds to a receptor on an adjacent cell, also...
Direct cell-to-cell contact is needed for the activation of Notch signaling. The signal is initiated when a notch ligand binds to a receptor on an adjacent cell, also...
Contact-dependent Signaling
Contact-dependent signaling, as the name suggests, requires that communicating cells be in direct contact with each other. This is achieved either through receptor-ligand interactions or by specialized cytoplasmic channels that allow the flow of small molecules between cells. In animal cells, channels called gap junctions facilitate contact-dependent signaling in certain tissues, whereas, plasmodesmata perform a similar function in plants.
Gap Junctions
In animal cells, gap junctions are formed...
Gap Junctions
In animal cells, gap junctions are formed...
Embryonic Stem Cells
Embryonic stem (ES) cells are undifferentiated pluripotent cells, meaning they can produce any cell type in the body. This gives them tremendous potential in science and medicine since they can generate specific cell types for use in research or to replace body cells lost due to damage or disease.
Embryonic Stem Cells
Embryonic stem (ES) cells were first discovered in mice in 1981 by Martin Evans. In 1998, James Thomson identified a method to isolate embryonic stem cells from humans. Human embryonic stem cells (hESCs) are obtained from 3-5 day old embryos that remain unused after an in vitro fertilization procedure.
ES cells are grown in a culture medium where they can divide indefinitely, creating ES cell lines. Under certain conditions, ES cells can differentiate, either spontaneously into a variety of...
ES cells are grown in a culture medium where they can divide indefinitely, creating ES cell lines. Under certain conditions, ES cells can differentiate, either spontaneously into a variety of...

