Chalcone-thiosemicarbazone Hybrids as Inhibitors of Human Hepatocellular Carcinoma HepG2 Cells Viability and Oxygen Consumption

2022 ◽  
Vol 18 ◽  
Author(s):  
Vivian Cordeiro Rodrigues ◽  
William Queiroz Felippe ◽  
Carla Marins Goulart ◽  
Aurea Echevarria ◽  
Ana Paula Pereira da Silva

Background: Chalcones are open-chain flavonoids especially attractive to medicinal chemistry due to their easy synthesis and the possibility of structural modifications. Objective: Evaluate the in vitro anticancer activity of a series of hybrids chalcones-thiosemicarbazones against the human hepatocellular carcinoma cell line, HepG2. Methods: Seven hybrid chalcones-thiosemicarbazones (CTs), 3-(4’-X-phenyl)-1-phenylprop-2-en-1-one thiosemicarbazone, where X=H (CT-H), CH3 (CT-CH3), NO2 (CT-NO2), Cl (CT-Cl), CN (CT-CN), F (CT-F) and Br (CT-Br), were synthesized and their effects on cells viability and mitochondrial oxygen consumption were accessed. Results: Incubation with CTs caused a decrease in HepG2 cells viability in a time-concentration-dependent manner. The most effective compounds in inhibiting cell viability, after 24 hours of treatment, were CT-Cl and CT-CH3 (IC50 20.9 and 23.63 μM, respectively). In addition, using 10 M and only 1 hour of pre-incubation, CT-CH3 caused a reduction in basal respiration (-37%), oxygen consumption coupled with ATP synthesis (-60%) and maximum oxygen consumption (-54%). These alterations in respiratory parameters may be involved with the inhibitory effects of CT-CH3, since significant changes in oxygen consumption rates were observed in a condition that anticipates more significant losses of cell viability. The ADME parameters and the no violation of Lipinski Rule of Five showed that all compounds are safe. Conclusion: These results may contribute to the knowledge about the effects of CTs on these cells and the development of new treatments against HCCs.

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Hongjun Liu ◽  
Yiru Wang ◽  
Bing Chen ◽  
Xia Shen ◽  
Wenxian Li

Lidocaine displays antitumor activity by inducing apoptosis and suppressing tumor growth in human hepatocellular carcinoma (HepG2) cells in vitro. However, the molecular mechanism underlying lidocaine-mediated antitumor activity is unclear. In this study, HepG2 cells were treated with lidocaine, and cell proliferation and colony-forming ability were assessed. The expression level of cytoplasmic polyadenylation element binding protein 3 (CPEB3) was detected by real-time quantitative PCR and western blot. Lidocaine treatment resulted in decreased HepG2 cell viability and colony formation in a dose-dependent manner. In hepatocellular carcinoma patient samples, CPEB3 was downregulated and was associated with poor prognosis and high-grade malignancy. Additionally, CPEB3 was a critical mediator of lidocaine-induced repression of HepG2 cell proliferation. These results demonstrated that lidocaine decreased cell viability and colony-forming ability of HepG2 cells by upregulating CPEB3 expression.


2021 ◽  
Author(s):  
Xin-Yu Li ◽  
Xin Zhou ◽  
Yu- Liu ◽  
Feng Qiu ◽  
Qing-Qing Zhao

Abstract Purpose: NeosedumosideIII (Neo) is a megastigmanes and belongs to monocyclic sesquiterpenoids compound with antioxidant, anti-inflammatory and other pharmacological activities. In order to explore the anti-cancer effect and possible mechanism of Neo, the study examined the anti-proliferation and apoptosis effect of Neo against human hepatocellular carcinoma HepG2 cells and SMMC-772 cells and related mechanism in vitro. Methods :The anti-proliferation effect of Neo was detected on HepG2 cells and SMMC-772 cells by MTT assay and IC50 with increasing dose and time. Cell cycle and apoptosis were detected by flow cytometer. The changes of Bcl-2, Bax, Caspase-3, Caspase-8 and Caspase-9 proteins were detected by western blotting.Results :The results indicated that Neo could inhibited proliferation of HepG2 cells and SMMC-772 cells in vitro and promoted apoptosis, it significantly induced apoptosis of HepG2 cells and SMMC-772 cells arrested cell cycle at G0/G1 phase in a dose-dependent manner, reduce the expression of Bcl-2 protein, and increase the expression of Bax and Caspase-3, Caspase-8 and Caspase-9 proteins. Conclusion:Neo could inhibit proliferation and induce apoptosis of HepG2 cells and SMMC-7721 cells in vivo which suggested that it might be served as a promising candidate for the treatment of liver cancer.


2020 ◽  
Vol 16 (3) ◽  
pp. 358-362
Author(s):  
Renan S. Teixeira ◽  
Paulo H.D. Carvalho ◽  
Jair A.K. Aguiar ◽  
Valquíria P. Medeiros ◽  
Ademar A. Da Silva Filho ◽  
...  

Background: Arctigenin is a lignan found in Arctium lappa L. (Asteraceae) that displays anti-inflammatory activities. Previous studies showed that the crude extract of A. Lappa has antitumor activity in human liver carcinoma, lung and stomach cancer cells. The aim of this study was to obtain arctigenin from A. lappa L., as well as to evaluate its antiproliferative effects in cells of liver carcinoma (HepG2) and fibroblasts (NIH/3T3). Methods: Arctigenin was obtained from the hydrolysis of arctiin, which was isolated from the crude extract of A. lappa. The effects of arctigenin and arctiin on HepG2 cell viability and cell adhesion were analyzed by MTT method. Adhesion assay was also carried out to evaluate the antitumor activity. Results: Our results showed that the analytical process to obtain arctigenin was fast and easy. In vitro experiments showed that arctigenin (107-269 μM) decreased HepG2 cells viability and did not cause cytotoxicity on NIH/3T3 cells. Arctigenin (27-269 μM) demonstrated anti-adhesion in HepG2 cells in a concentration-dependent manner, when compared with control. Conclusion: These results suggest a promising pharmacological activity for arctigenin as an antiproliferative compound.


2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Langlang Liu ◽  
Yanzeng Wu ◽  
Chao Xu ◽  
Suchun Yu ◽  
Xiaopei Wu ◽  
...  

It is difficult to synthesize nano-β-tricalcium phosphate (nano-β-TCP) owing to special crystal habit. The aim of this work was to synthesize nano-β-TCP using ethanol-water system and characterize it by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Malvern laser particle size analyzer, and transmission electron microscope (TEM). In addition, the inhibitory effect of nano-β-TCP on human hepatocellular carcinoma (HepG2) cells was also investigated using MTT assay, lactate dehydrogenase (LDH) leakage test, and 4′-6-diamidino-2-phenylindole (DAPI) staining. The results showed that negatively charged rod-like nano-β-TCP with about 55 nm in diameter and 120 nm in length was synthesized, and the average particle size of nano-β-TCP was 72.7 nm. The cell viability revealed that nano-β-TCP caused reduced cell viability of HepG2 cells in a time- and dose-dependent manner. These findings presented here may provide valuable reference data to guide the design of nano-β-TCP-based anticancer drug carrier and therapeutic systems in the future.


2011 ◽  
Vol 8 (3) ◽  
pp. 1451-1455
Author(s):  
Ramalingam Mahesh ◽  
Hyo Won Jung ◽  
Jun Hong Park ◽  
Yong-Ki Park

Ostericum koreanummaximowicz (Umbelliferae), a medicinal herb in Korean Oriental Medicine, has been applied to treat cold, headache, neuralgia and arthralgia. The ethyl acetate fraction ofO. koreanumroot was subjected toin vitroantioxidant activity with different methods for free radical scavenging activities. In addition, the cell viability and nitric oxide release assays were performed here for the first time in neuroblastoma (Neuro-2a) cell cultures. Among all the tested methods, the ethyl acetate fraction was expressed very active, exhibiting a good Trolox equivalent values and IC50, comparable to that of the commercial antioxidants, Trolox and ascorbic acid, respectively. The results showed that there was a reduction of cell viability by the fraction in a concentration dependent manner. These results suggest thatO. koreanumshows good antioxidant activitiesin vitroby inhibiting free radicals. These findings provide a rationale for thein vivotesting. Also, the major constituents behind the antioxidant mechanisms of this fraction warrant further study.


Molecules ◽  
2019 ◽  
Vol 24 (17) ◽  
pp. 3054 ◽  
Author(s):  
Phyu Phyu Myint ◽  
Thien T. P. Dao ◽  
Yeong Shik Kim

Background: This research aimed to investigate the cytotoxicity of methanol extract of Smallanthus sonchifolius leaf (YLE) against a human hepatocellular carcinoma cell line (HepG2). This plant is currently used as a traditional herbal remedy in the treatment of liver diseases in some rural parts of Myanmar. Methods: The cytotoxic activity of the plant extract against the cancerous cell line was assessed using an MTT assay. YLE demonstrated a significant effect (IC50 = 58.2 ± 1.9 μg/mL) on anti-cancer activity, which was further investigated using various assays including an in vitro cell migration assay, a colony formation assay, cell cycle analysis, western blot analysis, and a ROS assay. The significance of the phytochemical constituents of YLE could be identified using LC/Q-TOF-MS techniques. Results: We putatively identified the active components in YLE, which were possibly melampolide-type sesquiterpenoids. YLE showed an inhibitory effect on HepG2 cell proliferation and cell migration. YLE also induced cell cycle arrest and necrosis in a dose-dependent manner. Additionally, YLE significantly suppressed ROS formation in HepG2 cells. Conclusions: These findings suggest that YLE is sufficient for application as a promising anti-liver drug in herbal medicine.


2020 ◽  
Vol 19 (3) ◽  
pp. 261-269
Author(s):  
Zhong Min ◽  
He Lei ◽  
Shi Yujie ◽  
Chen Xin ◽  
Ren Jianwu

Erianin is a natural product derived from the traditional Chinese herb, Dendrobium chrysotoxum, which is highly valued for its antitumor activity in various cancer cells. However, the specific mechanism of antitumor activity of erianin in human hepatocellular carcinoma remains unclear. This study aimed to investigate erianin-induced apoptosis in human hepatocellular carcinoma HepG2 cells. The proliferation of HepG2 cells was significantly inhibited by the treatment of erianin in a doseand time-dependent manner. In addition, erianin induced a series of apoptosis-related events in HepG2 cells, including G2/M cell cycle arrest, the loss of the mitochondrial membrane potential, elevation of intracellular Ca2+, and accumulation of reactive oxygen species. Erianin activated the caspase-3 and caspase-9 without a change in caspase-8, accompanied by upregulation of the expression of Bax and downregulation of the expression of Bcl-2 along with cytochrome C release from the mitochondria. There was no significant change in Fas and FasL expression, indicating that the exogenous pathway is not involved in erianin-induced apoptosis. In summary, it concluded that erianin-induced apoptosis in HepG2 cells is through a mitochondria-mediated pathway. The results of this study suggest that erianin may serve as a novel therapeutic agent for the treatment of human hepatocellular carcinoma in the future.


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