International Journal of Preventive Medicine

ORIGINAL ARTICLE
Year
: 2018  |  Volume : 9  |  Issue : 1  |  Page : 12-

Effect of genistein on apoptosis and proliferation of hepatocellular Carcinoma Hepa1-6 Cell Line


Masumeh Sanaei1, Fraidoon Kavoosi1, Ali Valiani2, Mohamed Amin Ghobadifar3,  
1 Research Center for Noncommunicable Diseases, Jahrom University of Medical Sciences, Jahrom, Iran
2 Department of Anatomical Sciences and Molecular Biology, Medical School, Isfahan University of Medical Sciences, Isfahan, Isfahan Province, Iran
3 Department of Student Research Committee, Jahrom University of Medical Sciences, Jahrom, Iran

Correspondence Address:
Fraidoon Kavoosi
Research Center for Noncommunicable Diseases, Medicine School, Jahrom University of Medical Sciences, Motahari Avenue, Jahrom
Iran

Abstract

Background: One of the main causes of mortality is hepatocellular carcinoma (HCC) which accounts for the third leading cause of deaths and one in forty deaths worldwide. The flavonoids, natural antioxidant compounds, account for a major group of polyphenolic compounds. One of the major isoflavones in soybean is genistein (GE) which can inhibit proliferation and induce apoptosis. Isoflavones, major type of phenolic materials, derived from dietary plants and medicinal herbs play a significant role in cancer prevention and treatment. Correlation between dietary habits and cancer risk including breast, prostate, and colon cancer has been reported. Various bioactivities of these compounds such as anticarcinogenic and antioxidant are responsible for their chemopreventive activities by which induce migration, proliferation, cell cycle arrest, and apoptosis. GE, one of the major isoflavones, is considered as a potent chemopreventive agent against cancer. The aim of this study was to investigate the inhibitory and apoptotic effects of GE on HCC Hepa1-6 cell line. Methods: Cell viability assay and cell cycle analysis with flow cytometry were used to evaluate proliferative and apoptotic effect GE. Results: GE inhibited the growth of Hepa1-6 cells and induced apoptosis with a concentration and time-dependent fashion. During GE treatment for 24, the half maximal inhibitory concentration (IC50) was 20 μM, and the maximum inhibition of cell growth was 52% (P < 0.01). The percentage of apoptotic cells with a concentration of 20 μM of GE after 24, 48, and 72 h was 35, 42, and 65%, respectively (P < 0.01). Conclusions: Our finding clearly indicated that GE can significantly inhibit proliferation of hepatocellular carcinoma Hepa 1-6 cell line and induce apoptosis in this cell line.



How to cite this article:
Sanaei M, Kavoosi F, Valiani A, Ghobadifar MA. Effect of genistein on apoptosis and proliferation of hepatocellular Carcinoma Hepa1-6 Cell Line.Int J Prev Med 2018;9:12-12


How to cite this URL:
Sanaei M, Kavoosi F, Valiani A, Ghobadifar MA. Effect of genistein on apoptosis and proliferation of hepatocellular Carcinoma Hepa1-6 Cell Line. Int J Prev Med [serial online] 2018 [cited 2022 May 24 ];9:12-12
Available from: https://www.ijpvmjournal.net/text.asp?2018/9/1/12/225037


Full Text



 Introduction



One of the main causes of mortality is hepatocellular carcinoma (HCC) which accounts for the third leading cause of deaths and one in forty deaths worldwide.[1] This cancer occurs more often among men than women. The main risk factors of HCC are hepatitis C virus and hepatitis B virus.[2] The flavonoids, natural antioxidant compounds, account for a major group of polyphenolic compounds. These compounds constitute distinct groups including flavans, anthocyanidins, flavonols, flavanones, proanthocyanidins, neoflavonoids, isoflavones, and flavones which present in fruits, vegetables, legumes, herbs, cereals, stems and flowers, seeds, nuts, spices, and also in cocoa, wine, and tea.[3],[4],[5],[6],[7],[8] The incidence rate of colon, prostate, and breast cancers in the Asian people who consume diets rich in flavonoids is lower than populations in the Western hemisphere.[9] The major isoflavones in soybean are genistein (GE) and daidzein. It has been reported that GE can inhibit the cell cycle of certain cells at G2-M.[10] GE significantly inhibited the growth of MHCC97-H hepatocellular carcinoma (HCC) cells in vitro.[11] Previously, we reported that GE can inhibit proliferation and induce apoptosis in HCC Hepg2 and PLC/PRF5 cells.[12],[13] Few studies have evaluated the antiproliferation and apoptotic effect of GE on HCC Hepa 1-6 cell. Therefore, this study was designed to define the antiproliferation and apoptotic effects of GE on HCC Hepa 1-6 cell.

 Methods



Human HCC cells (Hepa 1-6 cell line) were purchased from the National Cell Bank of Iran, Pasteur Institute. GE was obtained from Sigma-Aldrich (St. Louis, MO, USA) diluted to 1, 5, 10, 15, 20, 25, 50, 75, and 100 μM in DMSO (Fisher Chemicals, Fair Lawn, NJ, USA) and stored in small aliquots at − 20°C. Dulbecco minimal essential medium (DMEM) and (3-[4, 5-dimethyl-2-thiazolyl]-2, 5-diphenyl-2Htetrazolium [MTT] bromide) and fetal bovine serum (FBS) purchased from Sigma-Aldrich (St. Louis, MO, USA).

Cell culture

The human HCC Hepa 1-6 cell was used in this experiment. These cells were cultured in DMEM (pH 7.2–7.4) containing 1% sodium pyruvate (Gibco, California, USA), 3.7 mg/ml sodium bicarbonate (Sigma), 10% FBS, and 1% antibiotics which include 10,000 units/ml penicillin G sodium, 10,000 ug/ml streptomycin sulfate, and 25 ug/ml amphotericin B with culture condition at 37°C in a humidified atmosphere containing 50 mL/L CO2 in air.

Cell viability assay

The proliferative effect of GE was evaluated by MTT assay. First, 5 × 105cells per well were cultured in a 96-well plate and treated with various doses of GE (1, 5, 10, 15, 20, 25, 50, 75, and 100 μM) after 24 h of culture. The control groups were received DMSO only which the concentration was 0.2%. After 24 h of treatment, cell viability was accessed by MTT assay according to protocol. For this purpose, the treated cells were washed with PBS, and then, a fresh medium in combination with MTT (0.5 mg/mL) was added and after 4 h, the formazan crystals formed in this process were dissolved in acidic isopropanol, and finally, the absorbance was measured at 540 nm. All tests were done three times independently.

Cell cycle analysis with flow cytometry

Hepa1-6 cells were seeded at the density of 5 × 105/well in in 24-well plates. After 24 h, the medium was changed and the cells were treated with or without GE with indicated concentrations. After treatment times (24, 48 and 72 h), all treated cells were trypsinized with 0.05% trypsin by which the cells were collected, washed with cold phosphate-buffered saline (PBS), and resuspended in binding buffer (1×). Annexin-V-(FITC) and propidium iodide (PI, Becton-Dickinson, San Diego, CA) were utilized to staining according to protocol. Finally, the apoptotic cells were counted by FACScan flow cytometry (Becton Dickinson, Heidelberg, Germany).

Statistical analysis

The database was setup with the SPSS 16.0 software package (SPSS Inc., Chicago, Illinois, USA) for analysis. The data were acquired from three tests and are shown as means ± standard deviations. Statistical comparisons between groups were performed with ANOVA (one-way ANOVA) and Turkey test. A significant difference was considered as P < 0.05.

 Results



Effect of genistein on growth of Hepa1-6 cells

To investigate the growth inhibitory effect of GrE, Hepa1-6 cells were treated with different concentrations (1, 5, 10, 15, 20, 25, 50, 75, and 100 μM) of GE for 24 h. After treatment time, cell viability was tested by the MTT assay, which showed that GE (with all indicated concentrations) decreased the cell numbers of Hepa1-6 cells in a dose- and time-dependent manner significantly [Figure 1]. The effective dose of the GE that inhibited 50% of the Hepa1-6 cancer cell lines was 20 μM and the maximum inhibition of cell growth was 52% (P < 0.001) [Figure 2].{Figure 1}{Figure 2}

Genistein induction of apoptosis

GE induces cell cycle arrest in Hep1-6 cells. Hepa1-6 cells were treated with 20 μM of GE for different time periods (24, 48, and 72 h). The percentage of apoptotic cells was also examined by flow cytometry. GE induced cell cycle arrest in the treated groups versus control in a time-dependent manner. The percentage of apoptotic cells was 35, 42, and 65% after 24, 48, and 72 h, respectively (P < 0.01). The best result (maximal apoptotic effect) was obtained in the group which treated for 72 h as shown in [Figure 3].{Figure 3}

 Discussion



A lower incidence of cancer has been reported by epidemiological studies in Asian people which consume soy products.[14],[15] In fact, many studies have reported that soy product, GE, has anticancer effect in many organs.[16],[17],[18]

Previously, we reported that GE can inhibit proliferation and induce apoptosis in HCC Hepg2 and PLC/PRF5 cells.[12],[13] The results of the present study showed that GE inhibits proliferation and induces apoptosis in HCC Hepa1-6 cell with a dose- and time-dependent manner.

Similar to our result, antiproliferative and apoptotic effect of GE has been reported in other tissues and cell lines. This effect has been shown in colon cancer HT-29 cells,[19] human breast carcinoma cell line, MDA-MB-435,[20] SKBR3, and ZR751 cells,[21],[22],[23],[24],[25] LNCaP and DU-145 human prostate cancer cell.[26],[27],[28],[29],[30],[31] Further studies have reported that GE exerts strong anti-invasive effects in vitro.[32] Other studies have demonstrated separate anti-invasive, antiadhesion, and antiproliferative effects of GE on other carcinoma cell lines.[33],[34] These reports are consistent with our result that revealed GE exerts an apoptotic and antiproliferative effect. On the other hand, in other reports, the biphasic effect of GE (proliferative and antiproliferative) was observed. In human uterine leiomyoma cells, low concentration (<1 mg/ml) of GE stimulates proliferation.[35] GE exerts a biphasic effect on growth of MCF-7 cells, proliferative effect at low and antiproliferative effect at high concentrations.[36] Similarly, it has been demonstrated that GE has estrogenic activity and inhibitory effects at a physiological concentration (10 nM–20 μM).[37] in vitro experiment has been indicated that GE promotes metastasis in advanced human prostate cancer transplant line.[38] We did not evaluate the mechanism of apoptotic and antiproliferative effect of GE in this work.

 Conclusions



Our work clearly demonstrated that GE can inhibit cell proliferation and induce cell apoptosis in human Hepa 1-6 cell line which can provide a new strategy for HCC treatment.

Acknowledgments

This article was supported by adjutancy of research of Jahrom Medical University, Iran.

Financial support and sponsorship

Adjutancy of research of Jahrom Medical University, Iran.

Conflicts of interest

There are no conflicts of interest.

References

1Parkin DM, Bray F, Ferlay J, Pisani P. Estimating the world cancer burden: Globocan 2000. Int J Cancer 2001;94:153-6.
2Curado MP, Edwards B, Shin HR, Storm H, Ferlay J, Heanue M, et al. Cancer incidence in five continents. IARC Sci Publ 2007;9:898-905.
3Harborne JB, Williams CA. Advances in flavonoid research since 1992. Phytochemistry 2000;55:481-504.
4Herrmann K. Flavonols and flavones in food plants: A review. J Food Technol 1976;11:433-48.
5Kühnau J. The flavonoids. A class of semi-essential food components: Their role in human nutrition. World Rev Nutr Diet 1976;24:117-91.
6Crozier A, Burns J, Aziz AA, Stewart AJ, Rabiasz HS, Jenkins GI, et al. Antioxidant flavonols from fruits, vegetables and beverages: Measurements and bioavailability. Biol Res 2000;33:79-88.
7Kefford JF, Chandler BV, editors. The Chemical Constituents of Citrus Fruits. New York: Academic Press; 1970.
8Wesley F Taylor, Ehsan Jabbarzadeh. The use of natural products to target cancer stem cells. Am J Cancer Res 2017;7:1588-1605.
9Adlercreutz H, Honjo H, Higashi A, Fotsis T, Hämäläinen E, Hasegawa T, et al. Urinary excretion of lignans and isoflavonoid phytoestrogens in Japanese men and women consuming a traditional Japanese diet. Am J Clin Nutr 1991;54:1093-100.
10Akiyama T, Ishida J, Nakagawa S, Ogawara H, Watanabe S, Itoh N, et al. Genistein, a specific inhibitor of tyrosine-specific protein kinases. J Biol Chem 1987;262:5592-5.
11Gu Y, Zhu CF, Dai YL, Zhong Q, Sun B. Inhibitory effects of genistein on metastasis of human hepatocellular carcinoma. World J Gastroenterol 2009;15:4952-7.
12Sanaei M, Kavoosi F, Arezoo M. Apoptotic effect of genistein on hepatocellular carcinoma HepG 2 cell line. Glob J Med Res Stud 2016;3:1-8.
13Dastjerdi MN, Kavoosi F, Valiani A, Esfandiari E, Sanaei M, Sobhanian S, et al. Inhibitory effect of genistein on PLC/PRF5 hepatocellular carcinoma cell line. Int J Prev Med 2015;6:54.
14Adlercreutz CH, Goldin BR, Gorbach SL, Höckerstedt KA, Watanabe S, Hämäläinen EK, et al. Soybean phytoestrogen intake and cancer risk. J Nutr 1995;125 3 Suppl:757S-70S.
15Park OJ, Surh YJ. Chemopreventive potential of epigallocatechin gallate and genistein: Evidence from epidemiological and laboratory studies. Toxicol Lett 2004;150:43-56.
16Wang HK. The therapeutic potential of flavonoids. Expert Opin Investig Drugs 2000;9:2103-19.
17Barnes S, Peterson TG. Biochemical targets of the isoflavone genistein in tumor cell lines. Proc Soc Exp Biol Med 1995;208:103-8.
18Sarkar FH, Li Y. Soy isoflavones and cancer prevention. Cancer Invest 2003;21:744-57.
19Qi W, Weber CR, Wasland K, Roy H, Wali R, Joshi S, et al. Tumor suppressor FOXO3 mediates signals from the EGF receptor to regulate proliferation of colonic cells. Am J Physiol Gastrointest Liver Physiol 2011;300:G264-72.
20So FV, Guthrie N, Chambers AF, Moussa M, Carroll KK. Inhibition of human breast cancer cell proliferation and delay of mammary tumorigenesis by flavonoids and citrus juices. Nutr Cancer 1996;26:167-81.
21Choi EJ, Kim GH. Antiproliferative activity of daidzein and genistein may be related to ERα/c-erbB-2 expression in human breast cancer cells. Mol Med Rep 2013;7:781-4.
22Fritz WA, Coward L, Wang J, Lamartiniere CA. Dietary genistein: Perinatal mammary cancer prevention, bioavailability and toxicity testing in the rat. Carcinogenesis 1998;19:2151-8.
23Lamartiniere CA, Zhao YX, Fritz WA. Genistein: Mammary cancer chemoprevention, in vivo mechanisms of action, potential for toxicity, and bioavailability in rats. J Womens Cancer 2000;2:11-9.
24Lamartiniere CA, Moore JB, Brown NM, Thompson R, Hardin MJ, Barnes S. Genistein suppresses mammary cancer in rats. Carcinogenesis 1995;16:2833-40.
25Murrill WB, Brown NM, Zhang JX, Manzolillo PA, Barnes S, Lamartiniere CA. Prepubertal genistein exposure suppresses mammary cancer and enhances gland differentiation in rats. Carcinogenesis 1996;17:1451-7.
26Peterson G, Barnes S. Genistein and biochanin A inhibit the growth of human prostate cancer cells but not epidermal growth factor receptor tyrosine autophosphorylation. Prostate 1993;22:335-45.
27Wang J, Eltoum IE, Lamartiniere CA. Dietary genistein suppresses chemically induced prostate cancer in Lobund-Wistar rats. Cancer Lett 2002;186:11-8.
28Greenberg NM, DeMayo F, Finegold MJ, Medina D, Tilley WD, Aspinall JO, et al. Prostate cancer in a transgenic mouse. Proc Natl Acad Sci U S A 1995;92:3439-43.
29Gingrich JR, Greenberg NM. A transgenic mouse prostate cancer model. Toxicol Pathol 1996;24:502-4.
30Gingrich JR, Barrios RJ, Kattan MW, Nahm HS, Finegold MJ, Greenberg NM. Androgen-independent prostate cancer progression in the TRAMP model. Cancer Res 1997;57:4687-91.
31Mentor-Marcel R, Lamartiniere CA, Eltoum IE, Greenberg NM, Elgavish A. Genistein in the diet reduces the incidence of poorly differentiated prostatic adenocarcinoma in transgenic mice (TRAMP). Cancer Res 2001;61:6777-82.
32Shao ZM, Wu J, Shen ZZ, Barsky SH. Genistein exerts multiple suppressive effects on human breast carcinoma cells. Cancer Res 1998;58:4851-7.
33Santibáñez JF, Navarro A, Martínez J. Genistein inhibits proliferation and in vitro invasive potential of human prostatic cancer cell lines. Anticancer Res 1997;17:1199-204.
34Traganos F, Ardelt B, Halko N, Bruno S, Darzynkiewicz Z. Effects of genistein on the growth and cell cycle progression of normal human lymphocytes and human leukemic MOLT-4 and HL-60 cells. Cancer Res 1992;52:6200-8.
35Moore AB, Castro L, Yu L, Zheng X, Di X, Sifre MI, et al. Stimulatory and inhibitory effects of genistein on human uterine leiomyoma cell proliferation are influenced by the concentration. Hum Reprod 2007;22:2623-31.
36Miodini P, Fioravanti L, Di Fronzo G, Cappelletti V. The two phyto-oestrogens genistein and quercetin exert different effects on oestrogen receptor function. Br J Cancer 1999;80:1150-5.
37Zava DT, Duwe G. Estrogenic and antiproliferative properties of genistein and other flavonoids in human breast cancer cells in vitro. Nutr Cancer 1997;27:31-40.
38Nakamura H, Wang Y, Kurita T, Adomat H, Cunha GR, Wang Y. Genistein increases epidermal growth factor receptor signaling and promotes tumor progression in advanced human prostate cancer. PLoS One 2011;6:e20034.