Fluorene

Fluorene is an orally active polycyclic aromatic hydrocarbon (PAH) and a precursor to other fluorene-based compounds. Fluorene and its derivatives serve as dye precursors for fluorene synthesis. In A549 cells, Fluorene induces oxidative stress and inflammatory responses by increasing ROS and SOD generation, exacerbating lipid peroxidation, modulating antioxidant enzyme activity, and upregulating the expression of pro-inflammatory factors TNF-α and IL-6. In vivo, Fluorene exhibits anxiolytic activity. Fluorene holds potential for research in inflammation and neurological disorders^[1][2][3]. In Vitro:Fluorene (200-800 μM, 24-48 hours) induces oxidative stress and inflammation in A549 cells, characterized by increased ROS generation, enhanced lipid peroxidation, altered antioxidant enzyme activity, and upregulated TNF-α and IL-6 expression^[2]. In Vivo:Fluorene (100 mg/kg, p.o. or i.p., once daily for 60 days) decreases weight gain and increases relative liver weight in Wistar rats, with the i.p. route resulting in higher blood and brain levels of Fluorene and its metabolites^[3].
Fluorene (1, 10 mg/kg/day, p.o. or i.p., once daily for 60 days) reduces anxiety levels in Wistar rats without affecting locomotor activity or learning ability^[3].