|Table of Contents|

The impact on the expression of apoptosis related genes after MDA-MB-231 regulated by Ghrelin of proliferated concentration

Journal Of Modern Oncology[ISSN:1672-4992/CN:61-1415/R]

Issue:
2016 06
Page:
854-857
Research Field:
Publishing date:

Info

Title:
The impact on the expression of apoptosis related genes after MDA-MB-231 regulated by Ghrelin of proliferated concentration
Author(s):
Yang LeiTu WeiJin GuanghuaWen JianFan YingQu Wenzhi
Department of Breast Surgery,The Fourth Affiliated Hospital of China Medical University,Liaoning Shenyang 110032,China.
Keywords:
GhrelinMDA-MB-231 cellsBcl-2Bax
PACS:
R737.9
DOI:
10.3969/j.issn.1672-4992.2016.06.002
Abstract:
Objective:To explore the effect on the gene expression related to apoptosis,such as Bcl-2 and Bax,when MDA-MB-231 cells are regulated by Ghrelin of proliferated concentration.Methods:We observed the n-octanoylated Ghrelin affected MDA-MB-231 cells by cell culture,MTT and flow cytometry was used to test the alteration of related apoptosis proterin.Results:When the concentration of Ghrelin ranged from 0nmol/L~100nmol/L,Ghrelin promoted MDA-MB-231 cells proliferation,however when its concentration was between 100nmol/L and 1 000nmol/L,Ghrelin inhibited cells proliferation,and we also found that Ghrelin had the strongest action of proliferation-promoting at 100nmol/L.The experimental group (100nmol/L Ghrelin deal with MDA-MB-231 cells) campared with control group (MDA-MB-231 cells without Ghrelin) had significant statistics difference,the ratio of Bcl-2/Bax in experimental group was higher than control group,with significant difference.Conclusion:Lower Ghrelin concentration can promote MDA-MB-231 cells proliferation with rised Bcl-2/Bax ratio,we suppose that Ghrelin promote MDA-MB-231 cells proliferation have relationship with the release of mitochondria antiapoptotic factors.

References:

[1]Al Massadi O,Tschp MH,Tong J.Ghrelin acylation and metabolic control[J].Peptides,2011,32(11):2301-2308.
[2]Andrews ZB.Central mechanisms involved in the orexigenic actions of Ghrelin[J].Peptides,2011,32(11):2248-2255.
[3]Jeffery PL,Murray RE,Yeh AH,et al.Expression and function of the Ghrelin axis,including a novel preproGhrelin isoform,in human breast cancer tissues and cell lines[J].Endocr Relat Cancer,2005,12(4):839-850.
[4]Grnberg M,Fjllskog ML,Jirstrm K,et al.Expression of Ghrelin is correlated to a favorable outcome in invasive breast cancer[J].Acta Oncol,2012,51(3):386-393.
[5]Galluzzi L,Kepp O,Kroemer G.Caspase-3 and prostaglandins signal for tumor regrowth in cancer therapy[J].Oncogene,2012,31(23):2805-2808.
[6]Tzifi F,Economopoulou C,Gourgiotis D,et al.The role of Bcl-2 family of apoptosis regulator proteins in acute and chronic leukemias[J].Adv Hematol,2012,2012:524308.
[7]Del BB,Valentini MA,Zunino F,et al.Cleavage of Bcl-2 in oxidant-and cisplatin-induced apoptosis of human melanoma cells[J].Oncogene,2001,20(33):4591-4595.
[8]Zhang Minlu,Huang Zhezhou,Zheng Ying,et al.Estimates and prediction on incidence,mortality and prevalence of breast cancer in China[J].Chin J Epidemiol,2008,33(10):1049-1051.[张敏璐,黄哲宙,郑莹,等.中国2008年女性乳腺癌发病、死亡和患病情况的估计及预测[J].中华流行病学杂志,2012,33(10):1049-1051.]
[9]Kojima M,Hosoda H,Date Y,et al.Ghrelin is a growth-hormone-releasing acylated peptide from stomach[J].Nature,1999,402(6762):656-660.
[10]Waters MJ,Conway-Campbell BL.The oncogenic potential of autocrine human growth hormone in breast cancer[J].PNAS,2004,101(42):14992-14993.
[11]Chung H,Kim E,Lee DH,et al.Ghrelin inhibits apoptosis in hypothalamic neuronal cells during oxygen-glucose deprivation[J].Endocrinology,2007,148(1):148-159.
[12]Granci V,Cai F,Lecumberri E,et al.Colon cancer cell chemosensitisation by fish oil emulsion involves apoptotic mitochondria pathway[J].Br J Nutr,2013,109(7):1188-1195.
[13]Aranovich A,Liu Q,Collins T,et al.Differences in the mechanisms of proapoptotic BH3 proteins binding to Bcl-XL and Bcl-2 quantified in live MCF-7 cells[J].Mol Cell,2012,45(6):754-763.
[14]Jung Eun Choi,Seon Min Woo,Kyoung-Jin Min,et al.Combined treatment with ABT-737 and VX-680 induces apoptosis in Bcl-2- and c-FLIP-overexpressing breast carcinoma cells[J].Oncol Rep,2015,33(3):1395-1401.
[15]Abdel-Fatah TM,Perry C,Dickinson P,et al.Bcl2 is an independent prognostic marker of triple negative breast cancer (TNBC) and predicts response to anthracycline combination (ATC) chemotherapy (CT) in adjuvant and neoadjuvant settings[J].Ann Oncol,2013,24:2801-2807.
[16]Seong MK,Lee JY,Byeon J,et al.Bcl-2 is a highly significant prognostic marker of hormone-receptor-positive,human epidermal growth factor receptor-2-negative breast cancer[J].Breast Cancer Res Treat,2015,150(1):141-148.
[17]Knowlton K,Mancini M,Creason S,et al.Bcl- 2 slows in vitro breast cancer growth despite its antiapoptotic effect[J].J Surg Res,1998,76(1):22-26.

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辽宁省科学计划项目(编号:2013225303)
Last Update: 2016-01-29