scholarly journals ISOLATION OF CYTOTOXIC CONSTITUENT FROM BIOACTIVITY GUIDED FRACTION OF ALYSICARPUS MONILIFER L. (DC.)

Author(s):  
PURVI HARISHKUMAR KAKRANI ◽  
HARISH KAKRANI ◽  
MANAN RAVAL

Objective: Alysicarpus monilifer (Family Papilionaceae) has been used in the Indigenous system of medicine in tumor removal. The present study was designed to isolate and identify the constituent responsible for cytotoxic (anti-tumor) effects of the plant Alysicarpus monilifer. Methods: The plant was powdered and extracted to give a methanolic extract. Initially, Hexane, chloroform, ethyl acetate and methanolic fractions of the methanolic extract of the plant were subjected to cytotoxic screening using cell line based assay (MTT assay and NRU assay). The chloroform fraction showed significant cytotoxicity, so it was further subjected to column chromatography, to separate the cytotoxic phytoconstituent. The cell lines selected were breast cancer cells (MCF-7 and MDA-MB-468) and Liver cancer cells (HepG2 and HLE cell). Results were calculated as percentage growth inhibition with respect to untreated (control) cells versus treated cells. Result: A triterpene, Betulinic acid, was isolated from the aerial parts of Alysicarpus monilifer. The cytotoxic activity of the identified compound against MCF-7, MDA-MB-231, HLE and HepG2 cells was also found to be highly significant with 90% growth inhibition. Conclusion: The triterpene was identified to be betulinic acid, to which the cytotoxic activity can be attributed. It is a first report of isolation of betulinic acid from the Alysicarpus species.

2014 ◽  
Vol 15 (22) ◽  
pp. 9655-9660 ◽  
Author(s):  
Mohammed I. Alhazmi ◽  
Tarique N. Hasan ◽  
Gowhar Shafi ◽  
Abdullah H. Al-Assaf ◽  
Mohammed A. Alfawaz ◽  
...  

2004 ◽  
Vol 22 (4) ◽  
pp. 379-389 ◽  
Author(s):  
Juan Antonio Marchal ◽  
Houria Boulaiz ◽  
Inés Suárez ◽  
Estrella Saniger ◽  
Joaquín Campos ◽  
...  

2015 ◽  
Vol 18 (3) ◽  
pp. 299-305 ◽  
Author(s):  
María del Carmen Avelino-Flores ◽  
María del Carmen Cruz-López ◽  
Fabiola E. Jiménez-Montejo ◽  
Julio Reyes-Leyva

2012 ◽  
Vol 65 (12) ◽  
pp. 1625 ◽  
Author(s):  
Vasilis I. Balas ◽  
Christina N. Banti ◽  
Nikolaos Kourkoumelis ◽  
Sotiris K. Hadjikakou ◽  
George D. Geromichalos ◽  
...  

Crystals of Ph3SnCl (1) were grown from a methanol/acetonitrile solution. Compounds [Ph3SnOH]n (2) and [(Ph2Sn)4Cl2O2(OH)2] (3) were crystallized from diethyl ether/methanol/acetonitrile and hot acetone/water solutions respectively, of the white precipitation, formed by adding KOH to solutions of 1 and [Ph2SnCl2] in 1 : 1 and 1 : 2 molar ratios respectively. Complex 1 was characterized by X-ray crystallography. X-ray structure determination of compounds 2 and 3 confirmed the previously reported identities. The molecular structure of 1, reported here, is a new polymorphic form of the known one for Ph3SnCl. Four independent [Ph3SnCl] molecules constitute the crystal structure of 1. The moieties are packed in two pairs in a tail-to-tail arrangement. Complexes 1–3 were evaluated for their in vitro cytotoxic activity (cell viability) against human cancer cell lines: HeLa (human cervical), MCF-7 (breast, estrogen receptor (ER) positive), MDA-MB-231 (breast, ER negative), A549 (lung), Caki-1 (kidney carcinoma), 786-O (renal adenocarcinoma), K1 (thyroid carcinoma), and the normal human lung cell line MRC-5 (normal human fetal lung fibroblast cells) versus, the normal immortalized human mammary gland epithelial cell line MTSV17 with a sulforhodamine B (SRB) assay. The results show potent cytotoxic activity of the complexes against all cell lines used, which was superior to that of cisplatin (CDDP). Compounds 1–3 showed higher activity against breast cancer cells MCF-7 (ER positive) than against of MDA-MB-231 (ER negative). These findings prompted us to search for possible interaction of these complexes with other cellular elements of fundamental importance in cell proliferation. The influence of these complexes 1–3 upon the catalytic peroxidation of linoleic acid to hydroperoxylinoleic acid by the enzyme lipoxygenase (LOX), as well as their binding affinity towards calf thymus-DNA, were kinetically and theoretically studied.


2014 ◽  
Vol 49 (23) ◽  
pp. 8171-8182 ◽  
Author(s):  
Samer Hasan Hussein-Al-Ali ◽  
Palanisamy Arulselvan ◽  
Sharida Fakurazi ◽  
Mohd Zobir Hussein

Endocrinology ◽  
2002 ◽  
Vol 143 (9) ◽  
pp. 3376-3384 ◽  
Author(s):  
Tytti M. Ahola ◽  
Tommi Manninen ◽  
Niina Alkio ◽  
Timo Ylikomi

2003 ◽  
Vol 179 (1) ◽  
pp. 55-62 ◽  
Author(s):  
M Alkhalaf ◽  
AM El-Mowafy

We have recently shown that growth inhibition of breast cancer cells by progesterone is due to the induction of cell differentiation, but not apoptosis. Because the tumor suppressor protein p53 plays a central role in normal cell growth and in tumor suppression, we have examined the effect of progesterone on the levels of this protein in MCF-7 cells. We show here that the antiproliferative effect of progesterone is accompanied with down-regulation of endogenous p53 protein. To study the effect of progesterone on cell growth in the presence of normal levels of p53 protein, we used transient transfection to overexpress p53 protein. MCF-7 cells were transfected with a p53 expressing vector that contains p53 human cDNA under the control of a cytomegalovirus promoter. Cell growth, cell viability, and apoptosis were analyzed in the transfected cells after six days of exposure to 100 nM progesterone. We show here that progesterone significantly enhances growth inhibition and apoptosis in MCF-7 cells overexpressing p53, but not in cells transfected with the control vector. These data suggest that re-establishing p53 function in MCF-7 breast cancer cells renders them more sensitive to the growth inhibitory effect of progesterone.


2002 ◽  
Vol 43 (2) ◽  
pp. 214-226 ◽  
Author(s):  
Wen-Huei Chang ◽  
Jun-Jen Liu ◽  
Ching-Hsein Chen ◽  
Tien-Shang Huang ◽  
Fung-Jou Lu

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