Related Experiment Video
Updated: Jan 3, 2026
08:35
In Situ Immunofluorescent Staining of Autophagy in Muscle Stem Cells
Published on: June 12, 2017
10.7K
Autophagy in Normal Stem Cells and Specialized Cells.
Kun Liu1, Liang Wang1, Tongbiao Zhao2
1State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China.
Advances in Experimental Medicine and Biology
|November 29, 2019
Summary
Autophagy, a cellular recycling process, is vital for both stem and specialized cells throughout life. This process maintains cell health and function across different life stages and cell types.
Area of Science:
- Cell Biology
- Molecular Biology
- Physiology
Background:
- Autophagy is a fundamental cellular process involving the degradation and recycling of cytoplasmic components.
- This intracellular system is crucial for maintaining cellular homeostasis and function.
- Autophagy is implicated across the entire lifespan, from early development to terminal differentiation.
Purpose of the Study:
- To summarize the diverse functions of autophagy in normal stem cells.
- To review the distinct roles of autophagy in specialized cell types.
- To highlight the importance of autophagy in cellular health and organismal development.
Main Methods:
- Literature review of studies on autophagy in stem and specialized cells.
- Analysis of the role of autophagy in cellular homeostasis and differentiation.
- Synthesis of findings across different life stages and cell types.
Main Results:
- Autophagy plays critical roles in maintaining the pluripotency and differentiation of stem cells.
- Specialized cells exhibit unique autophagy-dependent mechanisms for function and survival.
- The function of autophagy varies significantly depending on the cell type and developmental stage.
Conclusions:
- Autophagy is essential for normal stem cell biology and specialized cell function.
- Understanding cell-specific autophagy is key to comprehending cellular health and disease.
- Further research into distinct autophagy roles can reveal therapeutic targets.
Related Concept Videos
01:27Autophagy
5.6K
Autophagy is a self-digesting process by which a cell protects itself from threats both within and outside the cell, ranging from abnormal proteins to invading bacteria. In this process, obsolete components of the cell and invading microbes are degraded by hydrolytic enzymes active in an acidic environment of the lysosomal lumen.
An autophagic pathway consists of a series of signaling events activated in response to diverse stress and physiological conditions such as food deprivation,...
An autophagic pathway consists of a series of signaling events activated in response to diverse stress and physiological conditions such as food deprivation,...
5.6K
01:36Delivery Pathways to the Lysosome
8.7K
Eukaryotic cells use different mechanisms to eliminate toxic waste obsolete and worn-out substances. Lysosomes play a pivotal role in this, and hence, these substances are carried to the lysosome from other parts of the cell and extracellular space through different pathways. The most elaborately studied pathways to the lysosome are the endocytic pathways.
Endocytosis
In endocytosis, the cell membrane takes up macromolecules and particles from the surrounding medium. Clathrin-mediated...
Endocytosis
In endocytosis, the cell membrane takes up macromolecules and particles from the surrounding medium. Clathrin-mediated...
8.7K
01:18Autophagic Cell Death
4.2K
Christian de Duve discovered “autophagy,” a process in which cellular components are engulfed by membrane-bound organelles called autophagosomes. The autophagosomes then fuse with lysosomes to digest the enclosed contents. Autophagy is generally activated in cells to prevent cell death. However, cell death is triggered when the damage is beyond repair.
Autophagy and Apoptosis
Autophagy can activate apoptosis. In normal conditions, the autophagy activating protein Beclin-1 and...
Autophagy and Apoptosis
Autophagy can activate apoptosis. In normal conditions, the autophagy activating protein Beclin-1 and...
4.2K
01:30Overview of Cell Death
9.2K
Cell death is an essential process where the body gets rid of old or damaged cells. Cell proliferation and death need to be balanced, as an imbalance between the two may lead to cancer or autoimmune diseases.
Cell death was observed in the early 19th century, but there was no experimental evidence to prove it. In 1842, Carl Vogt first discovered cell death in a metamorphic toad; however, it was not termed ‘cell death.’ Scientists discovered different cell death pathways only in the...
Cell death was observed in the early 19th century, but there was no experimental evidence to prove it. In 1842, Carl Vogt first discovered cell death in a metamorphic toad; however, it was not termed ‘cell death.’ Scientists discovered different cell death pathways only in the...
9.2K
01:17Phagocytosis of Apoptotic Cells
4.8K
Cells undergoing apoptosis form apoptotic bodies that must be removed immediately to prevent inflammation, autoimmune diseases, and necrosis. Phagocytosis is carried out by professional phagocytes such as macrophages or immature dendritic cells. Non-professional phagocytes such as epithelial cells and fibroblasts also take part in this process; however, they are not as effective as professional phagocytes.
Normal cells contain receptors that prevent them from being recognized...
Normal cells contain receptors that prevent them from being recognized...
4.8K
01:26Stem Cell Niche
6.1K
The stem cell niche is the dynamic microenvironment where stem cells reside. Inside these niches, the cells may remain undifferentiated, undergo high self-renewal, or become lineage-specific progenitors. Stem cells coexist with other niche cells, such as stromal cells. They also interact closely with the ECM. Cell-cell and cell-matrix communication occur via adhesion molecules or soluble factors that signal the stem cells and determine their fate. Stromal cells also provide survival signals to...
6.1K