Description
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Selank – Research & Chemical Profile
Description
Selank is a synthetic heptapeptide and tuftsin analogue with the sequence Thr–Lys–Pro–Arg–Pro–Gly–Pro (TKPRPGP). It has been investigated as an anxiolytic and nootropic agent. Preclinical and limited clinical studies report effects on GABAergic signaling, monoamine metabolism, immune‑cytokine balance, and rapid increases in brain‑derived neurotrophic factor (BDNF) expression.
Chemical Structure / Identifiers
Property Detail Sequence Thr–Lys–Pro–Arg–Pro–Gly–Pro (TKPRPGP) Molecular Formula C33H57N11O9 Molecular Weight ≈ 751.9 g/mol CAS Number 129954‑34‑3 PubChem CID 11765600 UNII TS9JR8EP1G Synonyms Selanc; threonyl‑lysyl‑prolyl‑arginyl‑prolyl‑glycyl‑proline Primary Research Focus
• Anxiolytic and nootropic actions: reduced anxiety‑like behavior and improved cognition in animal models; exploratory clinical work in anxiety disorders.
• Neurotransmission: modulation of GABAergic genes and potential allosteric effects on GABA_A‑related pathways; effects on monoamine metabolism have been reported.
• Neurotrophic/BDNF: rapid elevation of hippocampal BDNF expression in rodents.
• Immunomodulation: shifts in cytokine profiles (e.g., IL‑6) and T‑helper balance described in preclinical studies.Safety / Limitations
• Research Use Only outside approved jurisdictions; not cleared by major regulators for disease treatment.
• Evidence base includes many studies from a single research program; large, independent randomized trials are limited.
• Reported adverse effects are generally mild (e.g., local nasal irritation in intranasal studies), but long‑term safety and optimal dosing remain uncertain.Key Publications / References
Wikipedia summary (identifiers, sequence): https://en.wikipedia.org/wiki/Selank
PubChem Compound Summary: Selank (CID 11765600). https://pubchem.ncbi.nlm.nih.gov/compound/11765600
Volkova A et al. Selank administration affects expression of genes involved in neurotransmission and GABAergic signaling. Front Pharmacol. 2016. PMC: https://pmc.ncbi.nlm.nih.gov/articles/PMC4757669/
Vyunova TV et al. Molecular aspects of heptapeptide Selank biological activity (review). 2018. PubMed: https://pubmed.ncbi.nlm.nih.gov/30255741/
Kolik LG et al. Selank protects against ethanol withdrawal‑induced anxiety/memory disturbances in rats. 2019. PubMed: https://pubmed.ncbi.nlm.nih.gov/31625062/
NCATS/UNII registry entry for Selank (TS9JR8EP1G). https://gsrs.ncats.nih.gov/ginas/app/beta/substances/TS9JR8EP1G
Disclaimer: For research background only. Not medical advice. Selank is not approved for diagnosis, treatment, or prevention of disease.

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