Selank
Synthetic Tuftsin Analogue & Nootropic Peptide – HPLC Verified
Comprehensive Product Description
Selank is a synthetic heptapeptide derivative of the endogenous immunomodulatory peptide Tuftsin (Thr-Lys-Pro-Arg). Chemically defined as Thr-Lys-Pro-Arg-Pro-Gly-Pro, Selank was developed to overcome the rapid enzymatic degradation inherent to natural peptides. By extending the C-terminus of the native Tuftsin sequence with a specific tripeptide fragment (Pro-Gly-Pro), mindpeptides offers a compound with significantly enhanced metabolic stability and a prolonged biological half-life in plasma.
Unlike traditional anxiolytics, such as benzodiazepines, Selank is classified as a regulatory peptide that exhibits potent anxiolytic and nootropic effects without inducing sedation, myorelaxation, or cognitive damping. In research settings, it is utilized as a reference standard for investigating the modulation of the central nervous system’s adaptive capabilities. It is particularly valued for its unique ability to optimize cortical function under conditions of high emotional stress, making it a critical tool in neurobiology and psychopharmacology research.
Mechanism of Action & Signaling Pathways
Enkephalinase Inhibition & Monoamine Modulation
The pharmacodynamics of Selank are distinct from direct receptor agonists. The peptide acts primarily by inhibiting enzymes responsible for the degradation of enkephalins (specifically enkephalinase), thereby increasing the concentration of endogenous opioid peptides in the brain. This mechanism is directly linked to its stress-protective and anti-anxiety effects.
Furthermore, Selank has been observed to modulate the metabolism of key neurotransmitters—serotonin (5-HT), dopamine (DA), and norepinephrine (NE)—in specific brain structures such as the hypothalamus and the hippocampus. By influencing the expression of Brain-Derived Neurotrophic Factor (BDNF) and normalizing neurotransmitter turnover, Selank facilitates memory consolidation and restores cognitive equilibrium during induced stress, without binding directly to GABA receptors.
Expanded Research Applications
- Anxiety & Stress Response Models:
Selank is extensively used to study the attenuation of anxiety-like behaviors in animal models (e.g., elevated plus-maze). Research indicates it can normalize behavioral reactions to sensory stimuli and reduce social defeat stress markers. - Cognitive Function & Memory:
As a nootropic agent, the peptide is applied in studies focusing on the restoration of memory traces and learning processes. It assists in probing the mechanisms of memory storage and retrieval, particularly under conditions of hypoxia or fatigue. - Immunomodulation & Inflammation:
Retaining the core structure of Tuftsin, Selank influences the expression of cytokines (such as IL-6) and modulates the balance of T-helper cells (Th1/Th2). This makes it a dual-purpose tool for researching the neuro-immune axis.
Laboratory Reconstitution Guidelines
mindpeptides supplies Selank as a sterile lyophilized powder requiring careful reconstitution for assay accuracy.
- Solvent: Bacteriostatic water or sterile 0.9% NaCl solution is recommended.
- Procedure: Inject solvent gently onto the lyophilized cake. Allow to dissolve at room temperature for 5-10 minutes. Use a gentle swirling motion; do not vortex, as shear forces can damage the peptide structure.
- Handling: Reconstituted solutions should be kept at 4°C for short-term use (up to 7 days). For long-term stability, aliquot and freeze at -20°C.
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