scholarly journals Caryophyllene Oxide, the Active Compound Isolated from Leaves of Hymenaea courbaril L. (Fabaceae) with Antiproliferative and Apoptotic Effects on PC-3 Androgen-Independent Prostate Cancer Cell Line

Molecules ◽  
2021 ◽  
Vol 26 (20) ◽  
pp. 6142
Author(s):  
Claudia Delgado ◽  
Gina Mendez-Callejas ◽  
Crispin Celis

Cancer treatment frequently carries side effects, therefore, the search for new selective and effective molecules is indispensable. Hymenaea courbaril L. has been used in traditional medicine in South America to treat several diseases, including prostate cancer. Leaves’ extracts from different polarities were evaluated using the 3-(4,5-methyl-thiazol-2-yl)-2,5-diphenyl-tetrazolium bromide (MTT) cell viability assay to determine the cytotoxicity in prostate p53-null cells, followed by bio-guided fractionations to obtain the most cytotoxic fraction considering the selectivity index. The most cytotoxic fraction was analyzed by GC/MS to identify the active compounds. The majority compound, caryophyllene oxide, induced early and late apoptosis, depolarized the mitochondrial membrane, leading to several morphological changes and shifts in apoptotic proteins, and caspases were evidenced. Depolarization of the mitochondrial membrane releases the pro-apoptotic protein Bax from Bcl-xL. The apoptosis process is caspase-7 activation-dependent. Caryophyllene oxide is a safe anti-proliferative agent against PC-3 cells, inducing apoptosis with low toxicity towards normal cells.

Marine Drugs ◽  
2020 ◽  
Vol 18 (5) ◽  
pp. 266 ◽  
Author(s):  
Min Sung Kim ◽  
Yong Tae Ahn ◽  
Chul Won Lee ◽  
Hyungwoo Kim ◽  
Won Gun An

Astaxanthin (AST) is related to apoptosis but the details of the mechanism of how AST makes apoptosis is not clear. The present study investigated apoptotic effects of AST to SKBR3, a breast cancer cell line in detail. Cell viability assay showed cellular proliferation and morphological changes of the cells were observed under AST treatment. FACS analysis indicated that AST blocked cell cycle progression at G0/G1, suppressed proliferation dose-dependently, and induced apoptosis of the cells. The apoptosis of the cells by AST was further demonstrated through the decreased expression level of mutp53 and cleaved a PARP-1 fragment, respectively. In addition, AST induced the intrinsic apoptosis of the cells by activation of Bax/Bcl2, cleaved caspase-3, and cleaved caspase-9 as well as the phosphorylation of ERK1/2, JNK, and p38. Furthermore, AST decreased production of intracellular reactive oxygen species as well as modulated expressions of superoxide dismutases and Pontin, an anti-apoptotic factor. Co-immunoprecipitation assay revealed AST reduced interaction between Pontin and mutant p53. Taken together, these studies proved that AST regulates the expression of apoptotic molecules to induce intrinsic apoptosis of the cells, suggesting AST therapy might provide an alternative for improving the efficacies of other anti-cancer therapies for breast cancer.


2020 ◽  
Vol 45 (4) ◽  
pp. 423-428
Author(s):  
Ali Mert Özgönül ◽  
Aycan Aşık ◽  
Burak Durmaz ◽  
Ramin Aslaminabad ◽  
Cumhur Gündüz ◽  
...  

AbstractObjectivesRecently, phenolic compounds (quercetin, kaempferol, ellagic acid (EA), and myricetin) as natural sources have been suggested to be used for treatment and chemoprevention of prostate cancer. Since rosehip includes the above molecules in high concentration, we set out to investigate possible anti-proliferative effect of rosehip tea on the prostate cancer cell line.MethodsThe flavonol content of rosehip tea prepared at different temperatures and time intervals was determined first and then the antiproliferative effect of tea samples was established by adding tea samples to the prostate cancer cell line (VCaP and LNCaP).ResultsQuercetin was more effective in LNCaP cell than in VCaP cell (IC50 = 20 and 200 μM, respectively). The boiled fruit shredded at minute 7 showed the highest levels of quercetin, EA and kaempferol and the boiled fruit at minute 7 had the highest levels of kaempferol and EA. The tea samples were prepared in concentrations relevant to their IC50 values, added to the VCaP and LNCaP cell lines. The antiproliferative effect of rosehip tea on VCaP cells was slightly greater than that of LNCaP cells.ConclusionEach of the flavonols exhibits an antiproliferative effect. Our data clearly indicated that rosehip as a natural source of all flavonols had an antiproliferative effect on androgen-sensitive prostate cancer. Now that it is important to use natural sources in cancer, rosehip seems to be a promising natural product to be used to treat the prostate illness.


2007 ◽  
Vol 101 (3) ◽  
pp. 631-641 ◽  
Author(s):  
S. Koochekpour ◽  
T.-J. Lee ◽  
R. Wang ◽  
Y. Sun ◽  
N. Delorme ◽  
...  

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