enteric neuron

Class

squalamine analog

Enteric neurons are the nerve cells that make up the enteric nervous system, an extensive network embedded in the wall of the gastrointestinal tract that coordinates motility, secretion, and local reflexes largely independently of the brain. In several neurodegenerative conditions, misfolded forms of the protein alpha-synuclein accumulate not only in the brain but also within these peripheral neurons, interfering with normal neurotransmission and contributing to symptoms such as severe constipation and impaired gut motility. Squalamine analogs are a class of small molecules, derived from a naturally occurring aminosterol, that act on the electrostatic properties of neuronal cell membranes rather than on a single receptor or enzyme. By altering how proteins associate with the inner surface of the membrane, they can displace aggregated alpha-synuclein from enteric neurons, with the aim of restoring more normal neuronal signaling and gastrointestinal function. This mechanism is of interest wherever synuclein pathology affects the enteric nervous system, most notably in Parkinson's disease and related synucleinopathies, where gut dysfunction often precedes or accompanies the classic motor features and significantly affects quality of life. The approach represents a membrane-directed, protein-displacement strategy rather than conventional receptor agonism or antagonism.