title: Identification and quantification of the active component quercetin 3-O-rutinoside from Barringtonia racemosa, targets mitochondrial apoptotic pathway in acute lymphoblastic leukemia.
abstract: Barringtonia racemosa has been used as a traditional medicine for the treatment of various diseases. The antitumor property of the seed extract of this plant in mice model promotes us to search for the active component present in the fruit extract. Quercetin 3-O-rutinoside (QOR) has been isolated from the fruits of this plant for the first time and quantified by HPLC method. The compound was identified by IR, mass, and NMR (1D, 2D) spectral data analysis. QOR showed dose- and time-dependent anti-proliferative activity in several leukemic cell lines with negligible effect on normal human peripheral blood mononuclear cell (PBMC). A representative T-lineage acute lymphoblastic leukemia cell line (MOLT-3) showed phosphatidyl serine externalization and DNA fragmentation, indicating QOR-induced programmed cell death. We established that QOR-induced apoptosis occurred preferentially on accumulation of cells in the sub-G(0) phase and genomic DNA fragmentation through the activation of mitochondria-dependent caspase cascade for the first time in T-lineage ALL cell line.
authors: Department of Medicinal Chemistry, Indian Institute of Chemical Biology, A Unit of Council of Scientific and Industrial Research, Kolkata, India.
authors: Suman Kumar
authors: SK
authors: Samanta
authors: Kaushik
authors: K
authors: Bhattacharya
authors: Chitra
authors: C
authors: Mandal
authors: Bikas Chandra
authors: BC
authors: Pal
mesh_terms: D000972:Antineoplastic Agents, Phytogenic / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology*; D017209:Apoptosis / Q000187:drug effects*; D031382:Barringtonia / Q000737:chemistry*; D002453:Cell Cycle / Q000187:drug effects; D005960:Glucosides / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology*; D006801:Humans; D007194:India; D008928:Mitochondria / Q000187:drug effects* / Q000378:metabolism; D015394:Molecular Structure; D010946:Plants, Medicinal / Q000737:chemistry*; D054198:Precursor Cell Lymphoblastic Leukemia-Lymphoma / Q000188:drug therapy; D011794:Quercetin / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D012431:Rutin
chemical_list: D000972:Antineoplastic Agents, Phytogenic; D005960:Glucosides; D012431:Rutin; D011794:Quercetin