Epithalon

Epithalon (Ala-Glu-Asp-Gly) is a synthetic tetrapeptide corresponding to a sequence originally isolated from epithalamin, a polypeptide extract from the pineal gland of animals.

The pineal gland is an endocrine organ involved in the production of melatonin and other peptides that are studied for their roles in circadian rhythms and neuroendocrine function. The peptide epithalamin was first described by researchers at the St. Petersburg Institute of Bioregulation and Gerontology.

Telomere Biology

This tetrapeptide has been studied for its potential to influence telomere length, telomerase activity in somatic cells, circadian rhythms, and lifespan in animal models.

Telomeres are repetitive DNA sequences at the ends of chromosomes that shorten with each cell division. This process is associated with cellular senescence and is referred to as the Hayflick limit in normal somatic cells.

Telomerase Activation

Beyond telomere-related studies, Epithalon has been investigated for its influence on pineal gland function, melatonin production, neuroendocrine signaling, and antioxidant enzyme systems.

The mechanisms of action for Epithalon appear to be multifaceted. One reported effect is the activation of telomerase in somatic cells where this enzyme is typically suppressed.

Telomerase Gene Expression

Proposed mechanisms include potential effects on the expression of the TERT gene, which encodes the catalytic subunit of telomerase. Some research suggests Epithalon might modulate epigenetic regulators that control TERT expression, such as DNA methylation and histone modifications.

Circadian and Neuroendocrine Effects

Epithalon may influence pineal gland function and circadian rhythms. Research indicates it can alter circadian melatonin production patterns, potentially through effects on pineal gene expression and enzymes involved in melatonin synthesis.

The peptide has also been observed to upregulate endogenous antioxidant enzyme systems, including superoxide dismutase, catalase, and glutathione-related enzymes. Some research suggests it may have immunomodulatory effects.

Published nonclinical literature relevant to this material's molecular targets and experimental models is listed below for independent review. Findings involving other preparations or experimental systems should not be attributed to this research material.

This material is supplied solely for in vitro and other nonclinical laboratory research. It is not for human or veterinary use, consumption, administration, therapeutic use, or diagnostic use.

Laboratory Handling

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Research Limitations

Published observations involving other preparations, experimental systems, or study populations do not establish the identity, performance, or suitability of this research material for any particular experiment.