Selank is a synthetic peptide derived from a fragment of the endogenous immunomodulatory peptide tuftsin. It has been studied for its potential role in modulating neurochemical signaling pathways involved in stress response, mood regulation, and cognitive function. Unlike traditional pharmacologic agents that directly target a single receptor, Selank is believed to influence broader regulatory mechanisms within the central nervous system.

Preclinical research suggests that Selank may interact with GABAergic and serotonergic pathways, which are associated with emotional balance, resilience to stress, and cognitive processing. These mechanisms are thought to underlie its observed effects in experimental models examining anxiety-related signaling, attention regulation, and memory performance. Researchers have also explored its potential role in supporting neuroplasticity and adaptive stress-response pathways.

Beyond its central nervous system activity, Selank has been investigated for possible immunomodulatory effects, including cytokine balance and immune signaling regulation. Ongoing research continues to evaluate its impact on neuroimmune interaction, stress adaptation, and overall regulatory homeostasis.