scholarly journals Phenolic Compounds Isolated from Caesalpinia coriaria Induce S and G2/M Phase Cell Cycle Arrest Differentially and Trigger Cell Death by Interfering with Microtubule Dynamics in Cancer Cell Lines

Molecules ◽  
2017 ◽  
Vol 22 (4) ◽  
pp. 666 ◽  
Author(s):  
Jessica Sánchez-Carranza ◽  
Laura Alvarez ◽  
Silvia Marquina-Bahena ◽  
Enrique Salas-Vidal ◽  
Verónica Cuevas ◽  
...  
2022 ◽  
Author(s):  
Selvaraj Shyamsivappan ◽  
Raju Vivek ◽  
Thangaraj Suresh ◽  
Palanivel Naveen ◽  
Kaviyarasu Adhigaman ◽  
...  

A progression of new N-(3'-acetyl-8-nitro-2,3-dihydro-1H,3'H-spiro[quinoline-4,2'-[1,3,4]thiadiazol]-5'-yl) acetamide derivatives were synthesized from potent 8-nitro quinoline-thiosemicarbazones. The synthesized compounds were characterized by different spectroscopic studies and single X-ray crystallographic studies. The compounds were...


2021 ◽  
Author(s):  
Selvaraj Shyamsivappan ◽  
Raju Vivek ◽  
Thangaraj Suresh ◽  
Adhigaman Kaviyarasu ◽  
Sundarasamy Amsaveni ◽  
...  

Abstract A progression of novel thiadiazoline spiro quinoline derivatives were synthesized from potent thiadiazoline spiro quinoline derivatives . The synthesized compounds portrayed by different spectroscopic studies and single X-ray crystallographic studies. The compounds were assessed for in vitro anticancer properties towards MCF-7 and HeLa cells. The compounds showed superior inhibition action MCF-7 malignant growth cells. Amongst, the compound 4a showed significant inhibition activity, the cell death mechanism was evaluated by fluorescent staining, and flow cytometry, RT-PCR, and western blot analyses. The in vitro anticancer results revealed that the compound 4a induced apoptosis by inhibition of estrogen receptor alpha (ERα) and G2/M phase cell cycle arrest. The binding affinity of the compounds with ERα and pharmacokinetic properties were confirmed by molecular docking studies.


2008 ◽  
Vol 294 (4) ◽  
pp. H1736-H1744 ◽  
Author(s):  
C. D. Venkatakrishnan ◽  
Kathy Dunsmore ◽  
Hector Wong ◽  
Sashwathi Roy ◽  
Chandan K. Sen ◽  
...  

Treatment of cancer patients with anthracyclin-based chemotherapeutic drugs induces congestive heart failure by a mechanism involving p53. However, it is not known how p53 aggravates doxorubicin (Dox)-induced toxicity in the heart. On the basis of in vitro acute toxicity assay using heat shock factor-1 (HSF-1) wild-type (HSF-1+/+) and HSF-1-knockout (HSF-1−/−) mouse embryonic fibroblasts and neonatal rat cardiomyocyte-derived H9c2 cells, we demonstrate a novel mechanism whereby heat shock protein 27 (HSP27) regulates transcriptional activity of p53 in Dox-treated cells. Inhibition of p53 by pifithrin-α (PFT-α) provided different levels of protection from Dox that correlate with HSP27 levels in these cells. In HSF-1+/+ cells, PFT-α attenuated Dox-induced toxicity. However, in HSF-1−/− cells (which express a very low level of HSP27 compared with HSF-1+/+ cells), there was no such attenuation, indicating an important role of HSP27 in p53-dependent cell death. On the other hand, immunoprecipitation of p53 was found to coimmunoprecipitate HSP27 and vice versa (confirmed by Western blotting and matrix-assisted laser desorption/ionization time of flight), demonstrating HSP27 binding to p53 in Dox-treated cells. Moreover, upregulation of p21 was observed in HSF-1+/+ and H9c2 cells, indicating that HSP27 binding transactivates p53 and enhances transcription of p21 in response to Dox treatment. Further analysis with flow cytometry showed that increased expression of p21 results in G2/M phase cell cycle arrest in Dox-treated cells. Overall, HSP27 binding to p53 attenuated the cellular toxicity by upregulating p21 and prevented cell death.


Molecules ◽  
2018 ◽  
Vol 23 (8) ◽  
pp. 1996 ◽  
Author(s):  
Bartolomeo Bosco ◽  
Andrea Defant ◽  
Andrea Messina ◽  
Tania Incitti ◽  
Denise Sighel ◽  
...  

Reversine is a potent antitumor 2,6-diamino-substituted purine acting as an Aurora kinases inhibitor and interfering with cancer cell cycle progression. In this study we describe three reversine-related molecules, designed by docking calculation, that present structural modifications in the diamino units at positions 2 and 6. We investigated the conformations of the most stable prototropic tautomers of one of these molecules, the N6-cyclohexyl-N6-methyl-N2-phenyl-7H-purine-2,6-diamine (3), by Density Functional Theory (DFT) calculation in the gas phase, water and chloroform, the last solvent considered to give insights into the detection of broad signals in NMR analysis. In all cases the HN(9) tautomer resulted more stable than the HN(7) form, but the most stable conformations changed in different solvents. Molecules 1–3 were evaluated on MCF-7 breast and HCT116 colorectal cancer cell lines showing that, while being less cytotoxic than reversine, they still caused cell cycle arrest in G2/M phase and polyploidy. Unlike reversine, which produced a pronounced cell cycle arrest in G2/M phase in all the cell lines used, similar concentrations of 1–3 were effective only in cells where p53 was deleted or down-regulated. Therefore, our findings support a potential selective role of these structurally simplified, reversine-related molecules in p53-defective cancer cells.


2021 ◽  
Vol 60 (1) ◽  
Author(s):  
Hui Yeng Yeannie Yap ◽  
Boon Hong Kong ◽  
Chee Sum Alvin Yap ◽  
Kien Chai Ong ◽  
Rosnah Binti Zain ◽  
...  

Research background. Tiger milk mushroom (Lignosus rhinocerus) is a medicinal mushroom that is geographically distributed in the region of South China, Thailand, Malaysia, Indonesia, Philippines and Papua New Guinea. Consumption of its sclerotium has been reported to treat various ailments. However, its anticancer potential towards oral cancer cell lines is yet to be discovered considering its traditional method of consumption by biting/chewing of the sclerotium. Experimental approach. Mushroom sclerotial powder of cultivar TM02® was extracted and fractionated by a Sephadex G-50 chromatographic column prior to cytotoxicity testing against a panel of human oral cancer cell lines. The capability of the identified bioactive fraction in regulating several molecules associated with its TNF pathway was investigated. Results and conclusions. MTT proliferation assay indicated that ORL-48 (derived from gingiva), ORL-188 (derived from the tongue), and ORL-204 (derived from buccal mucosa) were inhibited by L. rhinocerus sclerotial cold water extract and its high-molecular-mass fraction (HMM) in varying degree with ORL-204 being most affected. Hence, HMM treatment on ORL-204 was further investigated. HMM induced apoptosis and G0/G1-phase cell cycle arrest through caspase-3/7 cleavage. Activities of MIP2 and COX-2 were downregulated by 0.2- and 4.6-fold respectively in the HMM-treated ORL-204 cells. Novelty and scientific contribution. Using ORL-204, it revealed that HMM may have intervened via the TNF pathway at various network sites in its manifestation as a potential dietary compound for cancer prevention and natural adjunct therapeutic to conventional cancer treatment.


2014 ◽  
Vol 10 (4) ◽  
pp. 2099-2104 ◽  
Author(s):  
CHENGLIN LI ◽  
XINLIANG ZHOU ◽  
YADI WANG ◽  
SHAOWU JING ◽  
CONGRONG YANG ◽  
...  

Molecules ◽  
2020 ◽  
Vol 25 (3) ◽  
pp. 501
Author(s):  
So Hyun Park ◽  
Ji-Young Hong ◽  
Hyen Joo Park ◽  
Sang Kook Lee

Oxypeucedanin (OPD), a furocoumarin compound from Angelica dahurica (Umbelliferae), exhibits potential antiproliferative activities in human cancer cells. However, the underlying molecular mechanisms of OPD as an anticancer agent in human hepatocellular cancer cells have not been fully elucidated. Therefore, the present study investigated the antiproliferative effect of OPD in SK-Hep-1 human hepatoma cells. OPD effectively inhibited the growth of SK-Hep-1 cells. Flow cytometric analysis revealed that OPD was able to induce G2/M phase cell cycle arrest in cells. The G2/M phase cell cycle arrest by OPD was associated with the downregulation of the checkpoint proteins cyclin B1, cyclin E, cdc2, and cdc25c, and the up-regulation of p-chk1 (Ser345) expression. The growth-inhibitory activity of OPD against hepatoma cells was found to be p53-dependent. The p53-expressing cells (SK-Hep-1 and HepG2) were sensitive, but p53-null cells (Hep3B) were insensitive to the antiproliferative activity of OPD. OPD also activated the expression of p53, and thus leading to the induction of MDM2 and p21, which indicates that the antiproliferative activity of OPD is in part correlated with the modulation of p53 in cancer cells. In addition, the combination of OPD with gemcitabine showed synergistic growth-inhibitory activity in SK-Hep-1 cells. These findings suggest that the anti-proliferative activity of OPD may be highly associated with the induction of G2/M phase cell cycle arrest and upregulation of the p53/MDM2/p21 axis in SK-HEP-1 hepatoma cells.


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