ido-1

Palmatine chloride an isoquinoline alkaloid, is an important medicinal herbal extract with diverse pharmacological and biological properties.

1. Palmatine (Burasaine) is an inhibitor of dopamine generation. 2. Palmatine could potentially be developed for the treatment of flavivirus infections. 3. Palmatine has been used in the treatment of jaundice, dysentery, hypertension, inflammation, and liver-related diseases.

β-Lapachone (ARQ-501) is a specific DNA topoisomerase I inhibitor, and no inhibitory activities against DNA topoisomerase II or ligase.

(S)-Indoximod (L-Abrine) exhibits inhibition of rabbit small intestine indoleamine 2, 3-dioxygenase, competitive inhibition of IDO, reduction of Foxp3 protein expression in tumor of C57BL 6 mouse allografted with mouse LLC cells at 200 mg kg, induction of IDO1 protein expression in tumor of C57BL 6 mouse allografted with mouse LLC cells at 200 mg kg, antitumor activity against mouse LLC cells allografted in C57BL 6 mouse, antiproliferative activity against mouse LLC cells at 50 uM.

1. Coptisine sulfate has growth inhibitory activity against human cancer cell line in the NCI's anticancer drug screening program.

1. Coptisine (Coptisin) treatment increases cell viability based on its reversal effect on the enhanced activity of Indoleamine 2, 3-dioxygenase . 2. Coptisine treats myocardial I R likely through suppressing myocardial apoptosis and inflammation by inhibiting the Rho ROCK pathway. 3. Coptisine is a potential anti-osteosarcoma drug candidate, via exerting a strong anti-osteosarcoma effect with very low toxicity . 4. Coptisine with a high dosage could inhibit cholesterol synthesis via suppressing the HMGCR expression and promoting the use and excretion of cholesterol via up-regulating LDLR and CYP7A1 expression. 5. Coptisine suppresses adhesion, migration and invasion of MDA-MB-231 breast cancer cells in vitro, the down-regulation of MMP-9 in combination with the increase of TIMP-1 possibly contributing to the anti-metastatic function for breast cancer.

1. Coptisine chloride (NSC-119754) can be absorbed across intestinal epithelial cells, and completely absorbed compounds.

Palmatine hydroxide is an orally active, irreversible inhibitor of indoleamine 2,3-dioxygenase 1 (IDO-1), demonstrating IC50 values of 3 μM for HEK 293-hIDO-1 and 157μM for rhIDO-1. Additionally, it uncompetitively inhibits the West Nile virus (WNV) NS2B-NS3 protease with an IC50 of 96 μM. This compound exhibits a range of biological activities, including anti-cancer, anti-oxidation, anti-inflammatory, neuroprotective, antibacterial, and antiviral effects.