Studies on the post-mortem fish muscle tenderization -Analysis using the transgenic red seabream
鱼死后肌肉嫩化的研究——转基因红鲷分析
基本信息
- 批准号:15380142
- 负责人:
- 金额:$ 9.73万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (B)
- 财政年份:2003
- 资助国家:日本
- 起止时间:2003 至 2005
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
By the injection of 1, 10-phenanthroline, a specific inhibitor for metalloproteinase, meat tenderization of red seabream was significantly suppressed, suggesting that matrix metalloproteinase is involved in the post-mortem meat tenderization of red seabream. Then, Genes encoding matrix metalloproteinases (MMP) and tissue inhibitor of metalloproteinases (TIMP) were isolated from red sea bream. Actually, recombinant MMP degraded collagen, a main component of the muscle connective tissue, and the activity was inhibited by the addition of TIMP. These facts suggested MMP-TIMP system plays a very important role in the post-mortem tenderization of red seabream muscle.These findings suggested the transgenic expression of TIMP might suppress the post-mortem meat tenderization. We made a transgenic medaka overexpressing TIMP. Histological analysis demonstrated the effectiveness of the transgenic expression of TIMP for the suppression of collagen breamdown.To apply this technology to cultured fish, we adopted red seabream, an important species for fish culture. For the construction of the expression vector, three distinct α-actin genes (two skeletal muscle types and one cardiac muscle type) were also isolated. These actin genes are composed of 8 exons and having E Box and CArG Box in the up-stream region, but the expression pattern in the fish was clearly distinct. We made the expression vectors harboring the promoter regions of these genes with GFP as a reporter gene. As a result, all vectors were revealed to be useful for making transgenic red seabream.By using these vectors, we introduced TIMP gene into red seabream. We are now keeping 200 fish possibly having TIMP gene.
注射金属蛋白酶特异性抑制剂1,10-菲咯啉可显著抑制红鲷肉的嫩化,提示基质金属蛋白酶参与了红鲷肉的宰后嫩化过程。然后,从真鲷中分离了编码基质金属蛋白酶(MMP)和金属蛋白酶组织抑制剂(TIMP)的基因。实际上,重组MMP降解胶原,肌肉结缔组织的主要成分,并且通过添加TIMP抑制活性。这些结果表明,MMP-TIMP系统在红肉宰后嫩化过程中起着重要作用,提示TIMP基因的转基因表达可能抑制红肉宰后嫩化。我们制作了一个过表达TIMP的转基因青鳉。组织学分析证明了TIMP的转基因表达抑制胶原蛋白breamdown的有效性。为了将该技术应用于养殖鱼类,我们采用了红海鸟,一种重要的鱼类养殖物种。为了构建表达载体,还分离了三种不同的α-肌动蛋白基因(两种骨骼肌型和一种心肌型)。这些肌动蛋白基因由8个外显子组成,上游含有E Box和CArG Box,但在鱼类中的表达模式明显不同。我们用GFP作为报告基因构建了含有这些基因启动子区的表达载体。利用这些载体,我们将TIMP基因导入了红球藻中。我们现在养了200条可能有TIMP基因的鱼。
项目成果
期刊论文数量(11)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Establishment of a transgenic medaka line expressing Japanese flounder tissue inhibitor of metalloproteinase for the suppression of post-mortem meat tenderization.
建立表达日本牙鲆组织金属蛋白酶抑制剂的转基因青鳉品系,用于抑制死后肉的嫩化。
- DOI:
- 发表时间:2004
- 期刊:
- 影响因子:0
- 作者:K.Touhata;Y.Touhata;M.Yamashita;H.Toyohara;H.Toyohara
- 通讯作者:H.Toyohara
Molecular cloning and characterization of a tissue inhibitor of metalloproteinase, TIMP-2, from red seabream cultured cells
红鲷培养细胞金属蛋白酶组织抑制剂 TIMP-2 的分子克隆和表征
- DOI:
- 发表时间:2006
- 期刊:
- 影响因子:0
- 作者:K.Touhata;Y.Touhata;M.Yamashita;H.Toyohara
- 通讯作者:H.Toyohara
Occurrence of two distinct types of tissue inhibitor of metalloproeinase-2 (TIMP-2) in teleost fish. Biochim.
硬骨鱼中存在两种不同类型的金属蛋白酶-2 (TIMP-2) 组织抑制剂。
- DOI:
- 发表时间:2003
- 期刊:
- 影响因子:0
- 作者:K.Touhata;Y.Touhata;M.Yamashita;H.Toyohara;H.Toyohara;H.Toyohara;Haruhiko Toyohara;S.Kubota;M.Kubota;S.Kubota
- 通讯作者:S.Kubota
バイオサイエンスの新戦略-魚類生産とバイオテクノロジー
生物科学新战略——鱼类生产和生物技术
- DOI:
- 发表时间:2004
- 期刊:
- 影响因子:0
- 作者:K.Touhata;Y.Touhata;M.Yamashita;H.Toyohara;H.Toyohara;H.Toyohara;Haruhiko Toyohara;S.Kubota;M.Kubota;S.Kubota;S.Kubota;豊原治彦
- 通讯作者:豊原治彦
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TOYOHARA Haruhiko其他文献
TOYOHARA Haruhiko的其他文献
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{{ truncateString('TOYOHARA Haruhiko', 18)}}的其他基金
Studies on sensory function of deep sea animals
深海动物感觉功能的研究
- 批准号:
22658066 - 财政年份:2010
- 资助金额:
$ 9.73万 - 项目类别:
Grant-in-Aid for Challenging Exploratory Research
Biochemical studies on of ecological function of meiobenthos
小型底栖动物生态功能的生化研究
- 批准号:
21380131 - 财政年份:2009
- 资助金额:
$ 9.73万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Studies on the molecular mechanism of shell formation especially focusing on the silk-like proteins
壳形成的分子机制研究,特别是丝状蛋白
- 批准号:
18380124 - 财政年份:2006
- 资助金额:
$ 9.73万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
The mechanism of osmotic adaptation in marine invertebraes. -Structural and functional characterization of taurine transporter
海洋无椎骨渗透适应机制。
- 批准号:
11660204 - 财政年份:1999
- 资助金额:
$ 9.73万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Analysis on Ayu. Muscle collagenases induced in the spawning stage
对香鱼的分析。
- 批准号:
09660226 - 财政年份:1997
- 资助金额:
$ 9.73万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Studies on fibronectin-like protein of Japanese flounder
日本牙鲆纤连蛋白样蛋白的研究
- 批准号:
07660269 - 财政年份:1995
- 资助金额:
$ 9.73万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Studies of proteolytic breakdown of fish muscle collagen
鱼肌肉胶原蛋白水解分解的研究
- 批准号:
04660224 - 财政年份:1992
- 资助金额:
$ 9.73万 - 项目类别:
Grant-in-Aid for General Scientific Research (C)
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