Related Experiment Video
Updated: Oct 1, 2025
09:21
Ferritinophagy: Assessing the Selective Degradation of Iron by Autophagy in Human Fibroblasts
Published on: February 23, 2024
1.1K
Autophagy in the Neuronal Ceroid Lipofuscinoses (Batten Disease)
William D Kim1, Morgan L D M Wilson-Smillie1, Aruban Thanabalasingam1
1Environmental and Life Sciences Graduate Program, Trent University, Peterborough, ON, Canada.
Frontiers in Cell and Developmental Biology
|March 7, 2022
Summary
Neuronal ceroid lipofuscinoses (NCLs), or Batten disease, involve mutations in CLN genes, leading to cellular material accumulation. Research highlights the critical role of autophagy in NCL development and progression.
Area of Science:
- Neuroscience
- Genetics
- Cell Biology
Background:
- Neuronal ceroid lipofuscinoses (NCLs), also known as Batten disease, are a group of fatal neurodegenerative disorders.
- Over a dozen NCL subtypes exist, each caused by mutations in specific ceroid lipofuscinosis neuronal (CLN) genes.
- Mutations lead to the buildup of autofluorescent ceroid lipofuscin aggregates in neurons and other cells.
Purpose of the Study:
- To review the current research linking the autophagy pathway to NCLs.
- To elucidate the role of autophagy in the pathology of Batten disease.
- To guide future research on NCL mechanisms.
Main Methods:
- Review of existing scientific literature on NCLs and autophagy.
- Analysis of studies using various mammalian and non-mammalian model systems.
- Synthesis of evidence connecting CLN gene function to cellular processes.
Main Results:
- CLN genes encode proteins involved in diverse cellular functions, suggesting shared biological pathways.
- Evidence strongly indicates that CLN gene mutations impact autophagy.
- Autophagy appears essential for the development and progression of NCLs.
Conclusions:
- Altered autophagy is a significant factor in NCL pathology.
- Further investigation into the autophagy pathway is crucial for understanding and potentially treating Batten disease.
- Targeting autophagy may offer therapeutic strategies for NCLs.
Related Concept Videos
01:22Lysosomal Hydrolases
3.9K
Lysosomes are the site for the degradation of macromolecules and biological polymers released during membrane trafficking events such as secretory, endocytic, autophagic, and phagocytic pathways. The membrane-enclosed area of the lysosome, called the lumen, contains hydrolytic enzymes active in an acidic environment. These acid hydrolases are functional at a pH between 4.5 and 5 and are involved in cellular processes such as cell signaling, energy metabolism, restoration of the plasma membrane,...
3.9K
01:36Delivery Pathways to the Lysosome
8.0K
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...
8.0K
01:27Autophagy
4.7K
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,...
4.7K
01:18Autophagic Cell Death
3.6K
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...
3.6K
01:45ER Retrieval Pathway
4.0K
In the secretory pathway, vesicles transport proteins from one cellular compartment to another in forward transport to deliver the protein to its correct location. Occasionally, misfolded proteins and incorrect proteins escape their original compartments, and a retrieval pathway is used to return the escaped proteins to their original compartment.
The ER uses many checkpoints to prevent the entry of incorrectly folded or a resident protein as cargo onto a transport vesicle. These mechanisms...
The ER uses many checkpoints to prevent the entry of incorrectly folded or a resident protein as cargo onto a transport vesicle. These mechanisms...
4.0K
01:37Neural Regulation
40.4K
Digestion begins with a cephalic phase that prepares the digestive system to receive food. When our brain processes visual or olfactory information about food, it triggers impulses in the cranial nerves innervating the salivary glands and stomach to prepare for food.
40.4K