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Cytotoxicity of Ixora coccinea

Silvana Amadeu Ferreira Alves Monteath, Maria Aparecida M Maciel, Raquel Garcia Vega, Heloisa de Mello, Carollina de Araújo Martins, Andressa Esteves-Souza, Cerli Rocha Gattass, Aurea Echevarria
BACKGROUND: Ixora coccinea Linn (Rubiaceae) is an evergreen shrub with bright scarlet colored flowers found in several tropical and subtropical countries. It is used as an ornamental and medicinal plant. Phytochemical studies revealed that its major special metabolites are triterpene acids, such as ursolic and oleanolic acid. OBJECTIVE: To evaluate the isolation of ursolic acid (UA) (1) from methanol extracts of I. coccinea flowers through two methodologies, to prepare four derivatives, and to evaluate the cytotoxic effect against six cancer cell lines...
April 2017: Pharmacognosy Magazine
Thiago B C da Silva, Cinara O D'Sousa Costa, Alexandre F C Galvão, Larissa M Bomfim, Ana Carolina B da C Rodrigues, Mauricio C S Mota, Alex A Dantas, Tiago R Dos Santos, Milena B P Soares, Daniel P Bezerra
BACKGROUND: Great biodiversity is a highlight of Brazilian flora. In contrast, the therapeutic potentialities of most species used in folk medicine remain unknown. Several of these species are commonly used to treat cancer. In this study, we investigated the cytotoxic activity of 18 plants from 16 families that are found in the northeast region of Brazil. METHODS: The following species were studied: Byrsonima sericea DC. (Malpighiaceae), Cupania impressinervia Acev...
July 8, 2016: BMC Complementary and Alternative Medicine
Ambreen Ikram, Muhammad Ali Versiani, Amna Khatoon, Salman Khalid Ahmed, Samina Abdul Sattar, Shaheen Faizi
Two new esters of dammarane triterpenoids ixorene isovalerate (1), ixorene 3',8'-dimethyloctanoate (2) and a new ursane-type triterpenoids Ixoroid acid (3) were isolated from the methanolic extract of flowers of Ixora coccinea Linn., along with the three known constituents. The structures of compounds 1 and 3 were elucidated on the basis of extensive 1D,2D NMR studies and mass spectrometry as 17β-dammara-12,20-diene-3β-isovelarate and 3β-hydroxy-18β-urs-12ene-29β-oic acid, respectively, whereas 2 was identified as 17β-dammara-12,20-diene-3β-3',8'-dimethyloctanoate through (1)H NMR and mass spectral data...
2016: Natural Product Research
P G Latha, C T Chandralekha, G Vilasini, K R Panikkar
The aqueous extract of flowers of I. coccinea was evaluated for its cytotoxic and mutagenic effects on the meristematic cells of onion root tip. The percentage of abnormalities was found to increase with the increase in the concentration of the extract from 20 to 60 mg/ml. With 80 mg/ml completed arrest or total inhibition of cell division was observed. The major abnormalities were unprinted chromosomes at metaphase. Stickiness and clumping of chromosomes were induced by higher concentrations of the extract...
April 1998: Ancient Science of Life
Chia-Lin Lee, Yung-Chih Liao, Tsong-Long Hwang, Chin-Chung Wu, Fang-Rong Chang, Yang-Chang Wu
Two novel derivatized peptides, designated as ixorapeptide I (1) and ixorapeptide II (2), in addition to 28 other known compounds, were isolated from the MeOH extract of Ixora coccinea using bioassay-guided fractionation. The structures of metabolites 1 and 2 were determined by interpretation of the spectroscopic data and Marfey's method. Compound 1 exhibited selective potency against Hep3B liver cancer cell line with an IC(50) value of 3.36 μg/mL, and compound 2 did not show notable cytotoxicity toward cancer cell lines but could inhibit superoxide anion generation and elastase release with IC(50) values of 0...
December 15, 2010: Bioorganic & Medicinal Chemistry Letters
P G Latha, K R Panikkar
The antitumour activity of Ixora coccinea L. (Rubiaceae) flowers was studied in comparison to intraperitoneally transplanted Dalton's lymphoma (ascitic and solid tumours) and Ehrlich ascites carcinoma (EAC) tumours in mice. Intraperitoneal administration of 200 mg/kg of the active fraction (AF) of the I. coccinea flower increased the life-span of DLA and EAC ascitic tumour-bearing mice by 113 and 68%, respectively. The AF showed less activity against solid tumours (DLA) as compared to ascitic tumours. The same active fraction showed 50% cytotoxicity to DLA, EAC and Sarcoma-180 (S-180) cells in vitro at concentrations of 18, 60 and 25 microg/ml, respectively...
August 14, 1998: Cancer Letters
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