Bacoside A

Bacoside A is an orally active, blood-brain barrier-permeable triterpenoid saponin that modulates the activities of ATPases, AChE, CaMK2A and iNOS. Derived from Bacopa monniera. Bacoside A exerts significant antioxidant, anti-inflammatory and anti-apoptotic effects by maintaining ion balance, scavenging reactive oxygen species, stabilizing cell membranes, and regulating the expression of NF-κB and apoptosis-related proteins. Bacoside A counteracts morphine-induced reductions in Na⁺/K⁺-ATPase, Ca²⁺-ATPase and Mg²⁺-ATPase activities, increases mitochondrial membrane potential, and decreases intracellular reactive oxygen species levels. Bacoside A specifically binds to calcium/calmodulin-dependent protein kinase IIA to trigger endoplasmic reticulum calcium release. Bacoside A exhibits non-apoptotic cytotoxicity against glioblastoma cells while protecting normal nerve cells from stress-induced damage. Bacoside A is applicable to the research of Parkinson's disease and glioblastoma multiforme^[1][2][3].
In Vitro:Bacoside A (8 μg/mL) induces non-apoptotic, macropinocytosis-driven cell death in LN229, U87MG and U251 glioblastoma cells, but exerts no cytotoxic effects on normal HaCaT or SVG cells^[3].
Bacoside A (8 μg/mL) induces the formation of lysosome-precursor and caveolin-1-positive macropinosomes in LN229 and U87MG glioblastoma cells, thereby driving fluid accumulation and cell swelling^[3].
Bacoside A (8 μg/mL; 24 h) specifically enhances the phosphorylation level of T286 in CaMK2A in LN229, U87MG and U251 glioblastoma cells, but exerts no effect on normal HaCaT or SVG cells^[3].
Bacoside A (8 μg/mL; 24 h) induces CaMK2A phosphorylation in a calmodulin- and calcium-independent manner, whereas subsequent intracellular calcium release is required for macropinocytosis, cytoskeleton damage and cytotoxicity in LN229 and U87MG glioblastoma cells^[3].
Bacoside A (0.2-1.0 mg/mL; 3 h) does not significantly reduce the viability of N2a neuroblastoma cells at concentrations up to 0.4 mg/mL, but decreases cell viability at higher concentrations; the cell viability remains above 100% at 0.6 mg/mL^[4].
Bacoside A (0.4 mg/mL; 1 h) maintains nuclear integrity, reduces ROS production, and restores mitochondrial membrane potential in N2a neuroblastoma cells subjected to H₂O₂ (0.42 mM; 3 h) stress^[4].
Bacoside A (0.4 mg/mL; 1 h) exhibits anti-apoptotic activity in N2a neuroblastoma cells stressed by H₂O₂ (0.42 mM; 3 h), but its effect is weaker than that of its monomeric components Bacoside A3 (HY-N5064), Bacopaside II (HY-N6016) and Bacopasaponin C (HY-N6015)^[4]. In Vivo:Bacoside A (10 mg/kg/day; intragastric administration; daily dosing for 21 days) significantly alleviates morphine-induced oxidative stress in rat brain tissue by normalizing the activities of antioxidant enzymes, reducing lipid peroxidation and protein carbonylation, and restoring the function of membrane-bound ATPases; it exerts no effect on these biomarkers when administered alone^[1].
Bacoside A (5-20 mg/kg; i.p.; single administration 24 h prior to modeling) exerts a dose-dependent protective effect against Parkinson's disease-induced oxidative damage and neuronal degeneration in male Wistar rats. Among these doses, 20 mg/kg completely eliminates PD-induced changes in rotational behavior and restores multiple pathological markers to the levels observed in the sham-operated group^[2].
Bacoside A exhibits chemopreventive efficacy against N-Nitrosodiethylamine (HY-N7434)-induced hepatocellular carcinoma in rats^[3].
Bacoside A exerts anti-tumorigenic effects in mouse models of breast cancer, prostate cancer, and lung cancer^[3].
Bacoside A has a good safety profile and does not impair the learning and memory abilities of mouse models with learning and memory impairment^[3].