Related Experiment Video
Updated: Jun 3, 2026
05:54
Neural Stem Cell Reactivation in Cultured Drosophila Brain Explants
Published on: May 18, 2022
Food for thought: neural stem cells on a diet
Elizabeth T Ables1, Daniela Drummond-Barbosa
1Department of Biochemistry and Molecular Biology, Johns Hopkins University, Baltimore, MD 21205, USA.
Cell Stem Cell
|April 9, 2011
Summary
Diet impacts stem cell activity. A study reveals that insulin and TOR signaling, influenced by diet, control fruit fly neural stem cell proliferation across tissues.
Area of Science:
- Developmental Biology
- Stem Cell Biology
- Neuroscience
Background:
- Stem cell behavior is influenced by systemic factors and local signals, reflecting physiological status.
- Recent research highlights the intricate interplay between systemic cues and local microenvironments in regulating stem cell function.
Discussion:
- Two key studies demonstrate that diet-dependent insulin/TOR signaling acts as a relay between tissues.
- This signaling pathway is crucial for controlling neural stem cell proliferation in Drosophila.
Key Insights:
- Diet directly modulates stem cell proliferation through an insulin/TOR signaling cascade.
- A systemic signaling relay integrates nutritional status with local stem cell behavior.
- This mechanism provides a link between organism-wide physiological state and tissue-specific stem cell activity.
Outlook:
- Understanding this diet-signaling axis offers potential therapeutic targets for regenerative medicine.
- Further research can elucidate the specific molecular mechanisms of this inter-tissue communication.
- Exploring similar pathways in mammalian stem cells could reveal conserved regulatory principles.
Related Concept Videos
01:23Renewal of Intestinal Stem Cells
The intestinal epithelial lining rapidly renews every 4 to 5 days. The renewal is facilitated by intestinal stem cells (ISCs) located at the base of the crypt– a gland located at the bottom of each villus. ISCs divide asymmetrically to form new stem cells and progenitor daughter cells. The daughter cells are called transit-amplifying (TA) cells which move upwards along the crypt and either differentiate into absorptive cells– the enterocytes or secretory cells– including the goblet,...
01:26Stem Cell Niche
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...
01:27Source And Potency Of Stem Cells
Stem cells are undifferentiated cells with extensive self-renewal properties that help them maintain their population during the fetal and adult stages of life. They can specialize in all cell types of the human body. However, their differential potential may vary and can be classified into five types. Stem cells can be (1) Totipotent, (2) Pluripotent, (3) Multipotent, (4) Oligopotent, and (5) Unipotent. Each stem cell has a specific origin; the fertilized egg or zygote is a totipotent cell and...
01:21Stem Cell Therapy for Tissue Regeneration
Stem cell therapy is a method used in regenerative medicine to repair and restore function to damaged tissues and organs. Stem cells have the potential to proliferate and differentiate into various tissue types, making them ideal candidates for tissue regeneration. For example, hematopoietic stem cell transplants are commonly used in blood cancer treatment to replenish damaged bone marrow and restore healthy blood cells.
Types of Stem Cells used in Stem Cell Therapy
The two main cell types that...
Types of Stem Cells used in Stem Cell Therapy
The two main cell types that...