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Related Concept Videos

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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...
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Reprogramming alters the gene expression in somatic cells, transforming them into induced pluripotent stem (iPS) cells over several generations. Scientists can reprogram cells by introducing genes for four transcription factors—Oct4, Sox2, Klf4, and c-Myc (OSKM) by viral or non-viral methods. These factors are also known as Yamanaka factors after Shinya Yamanaka, who first generated iPS cells using mouse skin cells. Yamanaka was awarded the Nobel Prize in Physiology or Medicine in 2012...
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Molecular time machines unleashed: small-molecule-driven reprogramming to reverse the senescence.

Chunyin Tang1,2,3, Zhen Zhang4, Chunsong Yang1,2,3

  • 1Department of Pharmacy/Evidence-Based Pharmacy Center, West China Second University Hospital, Sichuan University, Chengdu, China.

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Cellular reprogramming resets the epigenetic clock to reverse aging. This anti-aging strategy converts cells to a youthful state, offering potential for tissue repair and treating age-related diseases.

Keywords:
anti-senescencecell reprogrammingchemical reprogrammingpluripotent stem cellsmall molecules

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Area of Science:

  • Biotechnology
  • Gerontology
  • Cell Biology

Background:

  • Cellular reprogramming reverses cell differentiation, offering potential anti-aging strategies.
  • This process resets the epigenetic clock, restoring cellular youth and regenerative capabilities.
  • It holds promise for tissue repair, lifespan extension, and treating age-related diseases.

Purpose of the Study:

  • To explore the potential of small-molecule-induced cell reprogramming for anti-aging.
  • To cover mechanisms, applications, limitations, and future directions for clinical translation.
  • To facilitate breakthroughs in human healthspan extension.

Main Methods:

  • Induction of pluripotency in differentiated cells using transcription factors or chemicals.
  • Focus on small-molecule-induced reprogramming for anti-aging applications.
  • Review of current research on mechanisms, safety, efficiency, and ethical considerations.

Main Results:

  • Cellular reprogramming restores cellular youthfulness and regenerative capacity.
  • Potential applications include tissue repair, improved organ function, and treatment of age-related diseases.
  • Accelerated development of anti-aging drugs through disease modeling and screening.

Conclusions:

  • Small-molecule-induced cell reprogramming presents a promising avenue for anti-aging therapies.
  • Addressing challenges in safety, efficiency, and ethics is crucial for clinical translation.
  • Further research is needed to fully realize the potential for extending human healthspan.