Related Experiment Video
Updated: May 8, 2026
12:23
Measuring Caenorhabditis elegans Life Span in 96 Well Microtiter Plates
Published on: March 18, 2011
Rapamycin extends life- and health span because it slows aging
1Department of Cell Stress Biology, Roswell Park Cancer Institute, BLSC, L3-312, Elm and Carlton Streets, Buffalo, NY, 14263, USA.
Aging
|August 13, 2013
Summary
Rapamycin extends lifespan by slowing aging processes, not just by fighting cancer. This drug targets the mechanistic target of rapamycin (MTOR) pathway, which drives harmful aging traits.
Area of Science:
- Gerontology
- Molecular Biology
- Pharmacology
Background:
- Aging is characterized by an increased probability of death over time.
- The mechanistic target of rapamycin (MTOR) pathway is implicated in aging processes.
- Rapamycin is a known inhibitor of the MTOR pathway.
Purpose of the Study:
- To investigate the effects of rapamycin on aging and lifespan.
- To clarify the relationship between rapamycin's anti-aging and anti-cancer activities.
- To explore the role of MTOR-driven developmental growth in aging.
Main Methods:
- Analysis of a recent publication by Neff, Ehninger, and coworkers.
- Discussion of rapamycin's impact on aging phenotypes.
- Examination of MTOR pathway's role in developmental processes.
Main Results:
- Rapamycin extends lifespan and slows aging, independent of direct anti-cancer effects.
- The study suggests aging is partly driven by MTOR-driven developmental growth.
- Rapamycin impacts similar processes in both young and old animals.
Conclusions:
- Rapamycin's benefits extend beyond cancer treatment, offering a potential anti-aging intervention.
- Targeting the MTOR pathway may be a viable strategy to combat aging.
- Understanding MTOR's role in development is crucial for aging research.
Related Concept Videos
02:15Replicative Cell Senescence
Replicative cell senescence is a property of cells that allows them to divide a finite number of times throughout the organism's lifespan while preventing excessive proliferation. Replicative senescence is associated with the gradual loss of the telomere — short, repetitive DNA sequences found at the end of the chromosomes. Telomeres are bound by a group of proteins to form a protective cap on the ends of chromosomes. Embryonic stem cells express telomerase — an enzyme that adds the telomeric...
02:15Replicative Cell Senescence
Replicative cell senescence is a property of cells that allows them to divide a finite number of times throughout the organism's lifespan while preventing excessive proliferation. Replicative senescence is associated with the gradual loss of the telomere — short, repetitive DNA sequences found at the end of the chromosomes. Telomeres are bound by a group of proteins to form a protective cap on the ends of chromosomes. Embryonic stem cells express telomerase — an enzyme that adds the telomeric...
03:03mTOR Signaling and Cancer Progression
The mammalian target of rapamycin or mTOR protein was discovered in 1994 due to its direct interaction with rapamycin. The protein gets its name from a yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors.
The mTOR pathway or the...
The mTOR pathway or the...
01:22PI3K/mTOR/AKT Signaling Pathway
The mammalian target of rapamycin (mTOR) is a serine/threonine kinase that regulates growth, proliferation, and cell survival in response to hormones, growth factors, or nutrient availability. This kinase exists in two structurally and functionally distinct forms: mTOR complex 1 (mTORC1) and mTOR complex 2 (mTORC2). The first form (mTORC1) is composed of a rapamycin-sensitive Raptor and proline-rich Akt substrate, PRAS40. In contrast, mTORC2 consists of a rapamycin-insensitive companion...
01:29Replication in Eukaryotes
In eukaryotic cells, DNA replication is highly conserved and tightly regulated. Multiple linear chromosomes must be duplicated with high fidelity before cell division, so there are many proteins that fulfill specialized roles in the replication process. Replication occurs in three phases: initiation, elongation, and termination, and ends with two complete sets of chromosomes in the nucleus.
Many Proteins Orchestrate Replication at the Origin
Eukaryotic replication follows many of the same...
Many Proteins Orchestrate Replication at the Origin
Eukaryotic replication follows many of the same...
02:41Telomeres and Telomerase
In eukaryotic DNA replication, a single-stranded DNA fragment remains at the end of a chromosome after the removal of the final primer. This section of DNA cannot be replicated in the same manner as the rest of the strand because there is no 3’ end to which the newly synthesized DNA can attach. This non-replicated fragment results in gradual loss of the chromosomal DNA during each cell duplication. Additionally, it can induce a DNA damage response by enzymes that recognize single-stranded DNA.