通过诱导Myrosinase基因表达提高西兰花(Brassica oleracea L. var. italica)毛根培养物中的茄红素产量及其对乳腺癌细胞的影响

IF 2.3 3区 生物学 Q3 BIOTECHNOLOGY & APPLIED MICROBIOLOGY
May Ahmed Amer, Thoria Rashad Mohamed, Raoufa A. Abdel Rahman, Manal Ali Shalaby, Abdelfattah Badr
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引用次数: 0

摘要

植物发根培养物有可能成为生产有价值的次生代谢化合物的重要生物技术工具。本研究探讨了通过根瘤农杆菌介导生产西兰花毛根培养物的过程,并研究了不同浓度的硫酸铜(CuSO4)和硫酸锌(ZnSO4)这两种诱导剂对西兰花毛根生产苜蓿素的影响。利用实时聚合酶链式反应(real-time PCR)对与苜蓿素生产相关的酪氨酸酶(MY)基因的表达进行了定量分析。此外,还评估了不同处理的莱菔硫烷对乳腺癌细胞株 MDA-MB-231 的细胞毒性作用,并测定了凋亡相关基因的转录水平。在 4 µM CuSO4 诱导 16 小时和 16 µM ZnSO4 诱导 8 小时后,产生的苜蓿烷量最高。研究发现,MY 基因的过表达与苜蓿烷产量的增加有关。所有的苜蓿烷处理都会诱导癌细胞活力的剂量依赖性降低。从用 CuSO4 处理过的西兰花毛根中提取的苜蓿烷对 MDA-MB-231 乳腺癌细胞株的细胞毒性作用高于从用 ZnSO4 处理过的西兰花毛根中提取的苜蓿烷。所有处理的莱菔硫烷都会上调细胞凋亡调节基因(Bax)、促凋亡Bcl2相关X、Caspase-3、Caspase-8和Caspase-9,同时下调B细胞淋巴瘤2(Bcl-2)基因(抗凋亡)的转录。总体结果表明,从西兰花发根中提取的莱菔硫烷对 MDAMB-231 乳腺癌细胞具有抗凋亡作用,从而确定了西兰花发根培养物中产生的莱菔硫烷具有潜在的抗癌活性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Improvement of sulforaphane production in hairy root cultures of broccoli (Brassica oleracea L. var. italica) by eliciting Myrosinase gene expression and its effect on breast cancer cells

Improvement of sulforaphane production in hairy root cultures of broccoli (Brassica oleracea L. var. italica) by eliciting Myrosinase gene expression and its effect on breast cancer cells

Plant-derived hairy root cultures have the potential to be a significant biotechnological tool for producing valuable secondary metabolite compounds. This study deals with the production of broccoli’s hairy root cultures via the mediation of Agrobacterium rhizogenes and investigates the effects of different concentrations of copper sulfate (CuSO4) and zinc sulfate (ZnSO4) as two elicitors on the production of sulforaphane in broccoli's hairy root. The expression of the Myrosinase (MY) gene, associated with sulforaphane production, was quantified using real-time PCR. Moreover, the cytotoxic effect of different treatments of sulforaphane on the breast cancer cell line, MDA-MB-231, was estimated and the transcription levels of apoptosis-associated genes were also determined. The highest amount of sulforaphane was produced at 4 µM CuSO4 after 16 h and 16 µM ZnSO4 after 8 h of elicitation. Overexpression of the MY gene was found to be associated with increased production of sulforaphane. All sulforaphane treatments induced a dose-dependent reduction in the viability of cancer cells. The sulforaphane extracted from broccoli's hairy roots treated with CuSO4 exerted a higher cytotoxic effect on the MDA-MB-231 breast cancer cell line than the sulforaphane extracted from broccoli's hairy root treated with ZnSO4. All treatments of sulforaphane up-regulated the Apoptosis Regulator (Bax) gene, Proapoptotic Bcl2 Associated X, Caspase-3, Caspase-8, and Caspase-9, while down-regulating the B-cell lymphoma 2 (Bcl-2) gene (antiapoptotic) transcription. The overall results showed an antiapoptotic effect of sulforaphane extract derived from broccoli's hairy roots on MDAMB-231 breast cancer cells, thereby establishing the potential anticancer activity of the sulforaphane produced in broccoli's hairy root cultures.

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来源期刊
Plant Cell, Tissue and Organ Culture
Plant Cell, Tissue and Organ Culture 生物-生物工程与应用微生物
CiteScore
5.40
自引率
13.30%
发文量
203
审稿时长
3.3 months
期刊介绍: This journal highlights the myriad breakthrough technologies and discoveries in plant biology and biotechnology. Plant Cell, Tissue and Organ Culture (PCTOC: Journal of Plant Biotechnology) details high-throughput analysis of gene function and expression, gene silencing and overexpression analyses, RNAi, siRNA, and miRNA studies, and much more. It examines the transcriptional and/or translational events involved in gene regulation as well as those molecular controls involved in morphogenesis of plant cells and tissues. The journal also covers practical and applied plant biotechnology, including regeneration, organogenesis and somatic embryogenesis, gene transfer, gene flow, secondary metabolites, metabolic engineering, and impact of transgene(s) dissemination into managed and unmanaged plant systems.
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