Researchers seeking to procure analytical-grade Epithalon require fully characterized synthetic peptides backed by rigorous physical and chemical documentation. PX1 Research supplies high-purity Epithalon strictly for laboratory research use, evaluated via independent third-party mass spectrometry and high-performance liquid chromatography.
Researchers seeking to procure analytical-grade Epithalon require fully characterized synthetic peptides backed by rigorous physical and chemical documentation. PX1 Research supplies high-purity Epithalon strictly for laboratory research use, evaluated via independent third-party mass spectrometry and high-performance liquid chromatography.
Investigators evaluating options to buy or procure ("acheter") Epithalon for laboratory research must prioritize chemical fidelity, lot-to-lot consistency, and comprehensive analytical documentation. Epithalon—a synthetic tetrapeptide with the amino acid sequence L-Ala-L-Glu-L-Asp-Gly (AGAD)—is widely utilized in cellular aging, genomic stability, and neuroendocrine models. Because subtle impurities or salt variations can alter cellular response in culture or rodent assays, obtaining reference-grade compounds is essential for experimental reproducibility.
PX1 Research provides laboratory-grade Epithalon synthesized in US-based, GMP-compliant facilities. Every lot undergoes independent ISO 17025 laboratory verification to confirm sequence identity, purity exceeding 98%, and minimal residual endotoxin. Researchers can access full documentation through our research catalog to ensure experimental reagents meet exact physical and chemical specifications prior to protocol execution.
Epithalon (also known as Epitalon or Epithalone) was designed as a synthetic analogue of epithalamin, a natural peptide extract isolated from the pineal gland. Classified structurally as a short-chain peptide bioregulator, its minimal tetrapeptide motif enables rapid cellular uptake and potential chromatin-modulating interactions within specific nuclear regions.
Unlike larger polypeptide hormones, short bioregulatory peptides function predominantly by binding to cellular receptors or interacting directly with histones and promoter regions of specific genes. In cell-free and cell-based assays, short peptide bioregulators have demonstrated the ability to alter DNA methylation dynamics and modulate gene expression patterns without inducing nonspecific transcriptional disruption. Researchers investigating epigenetic control pathways utilize these short motifs to observe targeted gene activation mechanisms in specialized cell lines.
The primary mechanism under investigation for Epithalon involves its role in telomerase reverse transcriptase (TERT) gene expression and subsequent telomere elongation. Telomeres—repetitive nucleoprotein complexes at chromosome ends—progressively shorten with each round of somatic cell division, establishing a critical barrier to cellular longevity known as the Hayflick limit.
In vitro data indicate that exposure to Epithalon induces upregulation of TERT subunit expression in human somatic fibroblasts. This transcriptional activation promotes telomerase activity, allowing the enzyme to add hexanucleotide repeats (TTAGGG) to telomeric ends. Preclinical studies suggest that this restoration of telomeric structural integrity delays the onset of replicative senescence, preserving proliferative capacity in primary cell strains without inducing tumorigenic transformation.
Furthermore, structural modeling indicates that Epithalon may interact with specific histone tails or DNA major grooves within the hTERT promoter region. By promoting an open chromatin conformation (euchromatin), Epithalon facilitates transcription factor binding, serving as a primary model compound for studying targeted epigenetic reactivation of silenced enzyme systems in aging tissues.
Beyond its primary genomic effects on telomeres, Epithalon plays a documented role in pineal gland biochemistry and circadian biology. The pineal gland acts as a master neuroendocrine regulator, coordinating systemic circadian rhythms through the cyclical synthesis and secretion of melatonin.
In preclinical rodent and non-human primate models, administration of pineal-derived short peptides restored night-time melatonin peak amplitudes in aging animals exhibiting pineal involution. In vitro studies using pinealocytes show that Epithalon enhances the activity of serotonin N-acetyltransferase (AANAT)—the rate-limiting enzyme in melatonin biosynthesis. Investigating these biochemical pathways allows researchers to explore the interrelationship between pineal integrity, oxidative stress defense systems, and systemic circadian synchronization in senescent organisms.
A substantial body of peer-reviewed preclinical literature evaluates Epithalon across diverse biological models, ranging from isolated cell lines to long-term rodent survival studies. Key areas of investigation documented in the PX1 Research Library include:
1. Fibroblast Culture Models: Human fetal skin fibroblasts treated with Epithalon exhibited a significant increase in the maximum number of population doublings compared to control cultures, demonstrating extended replicative lifespan.
2. Genomic Stability and DNA Repair: In vitro assays exposed to oxidative stressors showed reduced rates of double-strand DNA breaks and chromosome aberrations when pre-treated with synthetic tetrapeptides, suggesting enhanced baseline DNA repair pathway efficiency.
3. Rodent Longevity and Carcinogenesis Studies: Long-term animal assays evaluating murine models demonstrated reductions in spontaneous tumor incidence alongside modest increases in mean maximum lifespan. Researchers attribute these outcomes to preserved immune surveillance and optimized cellular homeostasis.
When designing research protocols targeting cellular aging, genomic stability, or metabolic regulation, investigators frequently compare Epithalon against other short-chain bioregulators and longevity-associated peptides. Understanding structural and functional distinctions aids in compound selection for specific in vitro pathways.
For example, while Epithalon specifically modulates telomerase expression and pineal function, Pinealon is a tripeptide (Glu-Asp-Arg) evaluated primarily for neuroprotective effects and central nervous system oxidative stress modulation. Similarly, mitochondrial-derived peptides like MOTS-c target metabolic homeostasis and insulin sensitivity via AMPK phosphorylation pathways rather than direct nuclear chromatin remodelling. In growth factor axis investigations, compounds such as CJC-1295 DAC operate via GHRH receptor signaling to stimulate somatotroph secretion. Comparing these distinct classes allows researchers to isolate specific cellular targets across age-related degradation pathways.
To obtain reproducible data, researchers requiring Epithalon must verify that incoming lots comply with stringent chemical characterization standards. Synthetic peptides are vulnerable to side-chain modifications, incomplete coupling steps, residual cleavage reagents, and bacterial endotoxin contamination.
PX1 Research subjects every batch of synthetic peptides to a multi-tiered analytical testing protocol conducted by independent ISO 17025 accredited testing facilities:
- Reverse-Phase High-Performance Liquid Chromatography (RP-HPLC): Establishes chemical purity by separating main peptide peaks from synthesis fragments or deamidation products. PX1 guarantees purity levels of ≥98.0%.
- Matrix-Assisted Laser Desorption/Ionization Mass Spectrometry (MALDI-TOF MS) or LC-MS: Verifies molecular weight and exact mass sequence identity (theoretical monoisotopic mass: ~390.35 Da for Epithalon free base).
- Bacterial Endotoxin Testing (LAL Assay): Quantifies lipopolysaccharide (LPS) levels. PX1 enforces strict endotoxin limits (<0.01 EU/mg) to prevent non-specific immune activation in cell cultures or animal tissues.
Detailed Certificate of Analysis (COA) documents accompanied by raw chromatograms are available for every lot, supporting complete laboratory compliance and regulatory audit readiness.
Proper handling and storage of lyophilized peptides are critical to prevent chemical degradation via hydrolysis, oxidation, or aggregation prior to experimental use. Epithalon is supplied as a sterile, lyophilized cake or powder.
1. Lyophilized Storage: Upon receipt, store unopened vials at -20°C or -80°C in a desiccated environment. Under these conditions, the peptide remains stable for up to 24 months.
2. Reconstitution: Reconstitute under a laminar flow hood using sterile Bacteriostatic Water (0.9% benzyl alcohol) or sterile PBS (phosphate-buffered saline, pH 7.4), depending on the experimental protocol requirements. Allow the vial to equalize to room temperature prior to solvent addition to minimize moisture condensation.
3. Solution Stability: Once reconstituted, aliquot the solution into single-use polypropylene tubes to avoid freeze-thaw cycles. Store aliquots at -20°C for short-term use (up to 30 days) or -80°C for extended storage. Avoid ultrasonic agitation, which can break fragile peptide bonds; gentle swirling is recommended to achieve complete dissolution.
For institutional procurement details or specialized batch sizes, review our wholesale account portal.
What is the primary application when researchers query 'epithalon acheter'?
Researchers querying 'epithalon acheter' are typically seeking to procure laboratory-grade synthetic Epithalon (Epitalon) for in vitro cell culture models or animal studies investigating telomerase activation, pineal biochemistry, and senescence mechanisms.
What is the amino acid sequence of Epithalon?
Epithalon is a synthetic tetrapeptide comprised of four amino acid residues: L-alanyl-L-glutamyl-L-aspartyl-glycine (Ala-Glu-Asp-Gly / AGAD), with a molecular weight of approximately 390.35 g/mol.
How does PX1 Research verify Epithalon peptide purity?
PX1 Research verifies purity using Reverse-Phase High-Performance Liquid Chromatography (RP-HPLC) to confirm purity ≥98%, alongside Mass Spectrometry (MS) for sequence mass verification and Limulus Amebocyte Lysate (LAL) testing for endotoxin levels.
Is Epithalon available for human clinical use or personal administration?
No. Epithalon supplied by PX1 Research is strictly designated for laboratory research use only. It is not intended for human consumption, therapeutic use, clinical trial administration, or diagnostic procedures.
What is the difference between Epithalon and Epithalamin?
Epithalamin is a crude peptide extract isolated from the bovine pineal gland containing a complex mixture of pineal peptides. Epithalon is a specific, synthesized tetrapeptide designed to mimic the primary active bioregulatory sequence found within epithalamin extract.
What solvent is recommended for reconstituting Epithalon for cell assays?
For cell culture assays requiring non-cytotoxic solvents, sterile phosphate-buffered saline (PBS, pH 7.4) or sterile water for injection is typically utilized. For multi-use laboratory storage, sterile bacteriostatic water containing 0.9% benzyl alcohol may be preferred.
How quickly are peptide research orders processed and shipped?
PX1 Research processes and ships research peptide orders same-day Monday through Friday from our centralized US fulfillment facilities located in California and Arizona.
Where can independent Certificates of Analysis (COA) be accessed?
Lot-specific COAs featuring raw HPLC chromatograms and mass spectral data are available directly on individual product pages or via request through our quality assurance department.
All products are sold strictly for laboratory and research use only. Not for human or veterinary use, diagnosis, treatment or consumption. Statements have not been evaluated by the FDA.