Selank
Also known as: Tuftsin analogue (TP-7)
Synthetic Regulatory Peptide
COMPOUND CLASS
Synthetic tuftsin-derived regulatory peptide
PRIMARY PATHWAY
GABAergic and serotonergic modulation
PRIMARY AREAS OF RESEARCH
Anxiety-related behavior, stress regulation, cognition
RESEARCH STATUS
Small clinical and preclinical studies, largely regional
EVIDENCE LEVEL
Limited
OTHER NAMES
Tuftsin analogue (TP-7)
What Is Selank?
Selank is a lab-made peptide derived from tuftsin, a tiny natural fragment that plays a role in immune signaling. As with Semax, chemists added a short tail to make the molecule last longer before enzymes break it down.
It is studied at the intersection of two systems that are often treated separately: the immune system and the nervous system. That overlap — sometimes called neuroimmune signaling — is a major reason researchers find it interesting.
- What it is
- A synthetic peptide based on tuftsin, a naturally occurring immune-signaling fragment.
- Category
- Cognitive and neurological research peptide with immune-related activity.
- Main system involved
- Inhibitory brain signaling (GABA) and neuroimmune communication.
- Research interest
- Anxiety-related behavior models, stress adaptation, and immune-brain crosstalk.
- Research status
- Primarily animal studies and small human studies, mostly from Russian literature.
Why Are Researchers Interested?
Anxiety-related behavior models
Animal studies have used standard behavioral tests to examine stress and anxiety-like responses. These are preclinical models, not clinical conclusions.
GABA system research
GABA is the brain's main 'slow down' signal. Studies have examined whether Selank influences this inhibitory tone.
Immune-brain crosstalk
Because of its tuftsin origin, it is used to study how immune signals affect brain function.
Non-sedating profile in models
Research has compared its behavioral profile to classic sedative compounds; findings are early and model-dependent.
How It Works
The brain balances two broad types of signaling: excitatory signals that speed activity up, and inhibitory signals that calm it down. GABA is the main inhibitory messenger. Selank research examines whether the peptide shifts that balance toward the calming side without acting like a classic sedative.
At the same time, immune messengers called cytokines can influence mood and behavior. Selank is studied as a tool for exploring how those immune signals connect with brain circuits.
Current Areas of Research
Stress and anxiety models
Behavioral responses under stress in standardized animal tests.
Inhibitory signaling
Whether GABA-related calming signals change.
Neuroimmune interaction
How immune messengers and brain function influence each other.
Neurotransmitter balance
Effects on serotonin and dopamine systems tied to mood and motivation.
Cognitive performance
Memory and attention measures in laboratory settings.
What Does the Evidence Actually Say?
Limited — available human studies are small and mostly from one research tradition; large independent randomized trials have not been published.
Side Effects & Safety Research
Documented in research
- Small published studies report low rates of adverse effects, but sample sizes limit confidence.
Possible or theoretical
- Because it is studied as a modulator of anxiety-related signaling, interactions with other agents acting on the same systems are a theoretical concern.
Where evidence is insufficient
- Long-term use and interaction data is not available.
What We Don't Know Yet
- Human clinical evidence is limited, small in scale, and not widely replicated internationally.
- The exact receptor or molecular target has not been definitively identified.
- Long-term effects are not characterized.
- Findings from animal anxiety models do not reliably translate to human experience.
Frequently Asked Questions
Research References
- Seredenin SB et al. Selank: pharmacological and neurochemical properties of a regulatory peptide. Bulletin of Experimental Biology and Medicine, 2008.
- Kolomin TA et al. Regulatory peptides and gene-expression effects in neuroimmune models. Bulletin of Experimental Biology and Medicine, 2010.
- Najjar VA and Nishioka K. Tuftsin: a natural phagocytosis-stimulating peptide. Nature, 1970.
Key Takeaway
Selank is a synthetic peptide derived from the immune fragment tuftsin, studied for its effects on calming (GABA) signaling and on communication between the immune system and the brain. Most evidence comes from animal models and small human studies. It is best understood as an active research subject in neuroimmune science rather than an established intervention.
Related Research
This information is provided for educational purposes only and summarizes current areas of scientific research. It is not medical advice, a treatment recommendation, or an instruction for personal use. Research findings may be preliminary, limited, or subject to change as new evidence becomes available.