Sovateltide (IRL-1620) activates neuronal differentiation and prevents mitochondrial dysfunction in adult mammalian brains following stroke

Amaresh K Ranjan, Seema Briyal, Anil Gulati
Scientific Reports 2020 July 29, 10 (1): 12737
The development of effective drugs for stroke is urgently required as it is the 2nd largest killer in the world and its incidence is likely to increase in the future. We have demonstrated cerebral endothelin B receptors (ETBR) as a potential target to treat acute cerebral ischemic stroke. However, the mechanism of ETBR mediated neural regeneration and repair remains elusive. In this study, a permanent middle cerebral artery occluded (MCAO) rat model was used. Sovateltide (an ETBR agonist) injected intravenously showed better survival and neurological and motor function improvement than control. Higher neuronal progenitor cells (NPCs) differentiation along with better mitochondrial morphology and biogenesis in the brain of sovateltide rats were noted. Exposure of cultured NPCs to hypoxia and sovateltide also showed higher NPC differentiation and maturation. This study shows a novel role of ETBR in NPCs and mitochondrial fate determination in cerebral ischemia, and in improving neurological deficit after stroke.

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