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昆虫抗菌肽及其基因工程研究进展 总被引:12,自引:0,他引:12
昆虫抗菌肽是昆虫免疫后存在于血淋巴中的一类活性肽,具有广谱的抗菌、抗病毒、抑制肿瘤的生物活性,具有很高的应用潜力。本文主要介绍昆虫抗菌肽的类型、生理活性、基因的克隆与表达及转基因工程研究进展。
Insect Antibacterial Peptides and Its Progress in Advance on Genetic Engineering
GONG Xia,YUE Guo-wei,SHI Yong-hui
Laboratory for Animal Nutrition Research,College of Food Science,Southern Yangtze University,Wuxi 214036,China
Abstract:Insect antibacterial peptides produced are kinds of bioactive peptides in hameolymph hen insect has been immunized.These peptides have the wide range of antibacterial,antiviral spectrum and inhibiting growth of tumor cell.The types of antibacterial peptides and its physiological activities,cloning and expression of the genes and transgenetic research are summarized.Its application on medicine and gene engineering are prospected.
Key words:insect antibacterial peptides; physiological activity; gene 相似文献
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昆虫抗菌肽的研究进展 总被引:10,自引:0,他引:10
昆虫的种类繁多,约几百万种,为适应各种不同的生态环境,建立了自己独特的免疫系统,抗菌肽就是免疫体系中的关键成分,过去,抗菌肽的主要研究方面是昆虫免疫和昆虫生化,目前不少工作从分子水平上进行探讨。 相似文献
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昆虫抗菌肽是昆虫免疫后存在于血淋巴中的一类肽类活性物质.具有相对分子质量小、热稳定性强、无免疫原性、抗菌谱广等特点.结合昆虫抗菌肽的研究现状和发展前景,对昆虫抗菌肽的分类、作用机理、基因工程等方面进行了综述. 相似文献
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昆虫抗菌肽研究和应用现状 总被引:3,自引:0,他引:3
昆虫在受到刺激或感染之后,在其血淋巴中会产生一种抗菌类物质,称抗菌肽。抗菌肽具有分子小、稳定性好、广谱抗菌、无毒副作用等特点,在农业、医药、食品等领域有广泛的应用前景。简要综述了昆虫抗菌肽的基础研究和应用现状。 相似文献
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昆虫抗菌肽的研究进展郭玉梅,戴祝英综述陈宜峰审校(南京师范大学生物系,南京210024)昆虫的种类繁多,约几百万种,为适应各种不同的生态环境,建立了自己独特的免疫系统,抗菌肽就是免疫体系中的关键成分。 相似文献
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抗菌肽及其工业应用前景 总被引:1,自引:0,他引:1
抗菌肽是生物体内经诱导产生的一种对抗外源性致病菌作用的防御性小分子多肽,广泛存在于动植物和微生物体内。其分子量一般在4000Da左右,带正电荷,由30~40个氨基酸组成。抗菌肽一般都具有耐热性,100℃温度下活性最长可保持30min以上。抗菌肽具广谱抗菌活性,通过破坏细胞膜等作用,可以抑制革兰氏阴性菌、革兰氏阳性菌、真菌,有些抗菌肽还具有抗原虫、病毒及抗癌功能。抗菌肽在工业应用中展示出了广阔的前景。 相似文献
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昆虫抗菌肽对病原微生物作用的研究进展 总被引:28,自引:3,他引:28
在诱导和非诱导情况下,昆虫能产生各种类型的具有体液免疫功能的小分子物质-抗菌肽,参与机体对入侵病原微生物的免疫应答反应,构成了机体独特的免疫系统和免疫机制。这类抗菌肽或抗菌蛋白也存在于其它动物。研究表明,抗菌肽对细菌、真菌、病毒和原虫都具有作用,甚至对癌细胞也具有杀伤作用。随着抗菌肽家族的不断扩大,其结构研究的深入,相继提出了一些崭新的杀菌方式和作用机制。本文从目前国内外这方面的研究入手,分析各抗菌肽的作用特点、杀菌作用模式,展望了基因工程及临床应用的前景。 相似文献
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Rong Peng Zhong Yang Kaiyu Liu Hanchao Yao Hong Yang Yanfang Cui Huazhu Hong 《Frontiers of Biology in China》2008,3(2):203-206
We induced 3 cell lines that were in vitro cultured from Lepidoptera with heat inactivated Escherichia coli DH5α to stimulate the antibacterial peptide followed by antibacterial activity assay, induction dynamic research and Tricine sodium
dodecyl sulfate-polyacrylamide gel electrophoresis (Tricine SDS-PAGE) experiment. The antibacterial activity of the induced
BTI-Tn-5B1 cell line was the highest, and the antibacterial activity increased gradually to the highest level in 16 hours
after stimulation. A new antibacterial peptide with a molecular weight of about 8000 Da was preferentially induced in Trichoplusia ni BTI-Tn-5B1 cells in 16 hours after stimulation. Antibacterial activity assays indicated that it had inhibition against Staphylococcus aureus, Escherichia coli K12D31 and Salmonella derby. It has especially strong inhibition against Gram-negative bacteria such as Escherichia coli K12D31 and Salmonella derby.
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Translated from Journal of Central China Normal University (Natural Sciences), 2006, 40(2): 240–243 [译自: 华中师范大学学报 (自然科学版] 相似文献
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We induced 3 cell lines that were in vitro cultured from Lepidoptera with heat inactivated Escherichia coil DH5α to stimulate the antibacterial peptide followed by antibacterial activity assay,induction dynamic research and Tricine sodium dodecyl sulfate-polyacrylamide gel electrophoresis (Tricine SDS-PAGE) experiment.The antibacterial activity of the induced BTI-Tn-5B1 cell line was the highest,and the antibacterial activity increased gradually to the highest level in 16 hours after stimulation.A new antibacterial peptide with a molecular weight of about 8000 Da was preferentially induced in Trichoplusia ni BTI-Tn-5B1 ceils in 16 hours after stimulation.Antibacterial activity assays indicated that it had inhibition against Staphylococcus aureus,Escherichia coli K12D31 and Salmonella derby.It has especially strong inhibition against Gram-negative bacteria such as Escherichia coli KI2D31 and Salmonella derby. 相似文献
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Mariola Kuczer Katarzyna Dziubasik Anna Midak‐Siewirska Renata Zahorska Mirosław Łuczak Danuta Konopińska 《Journal of peptide science》2010,16(4):186-189
The subject of these studies was synthesis and determination of biological properties of a series of insect peptides, such as alloferon, Any‐GS and their analogues. The synthesis of 14 peptides was performed by the solid‐phase method. Biological effect of these peptides was evaluated by the antiviral test against Human Herpes Virus type 1 (HHV‐1) in vitro using a Vero cell line. It was found that the investigated peptides inhibit the replication of HHV‐1 in Vero cells. Copyright © 2010 European Peptide Society and John Wiley & Sons, Ltd. 相似文献
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黄粉甲幼虫抗菌物质的诱导及其抗菌活性 总被引:17,自引:2,他引:17
采用饥饿法、紫外线照射法和针刺法处理黄粉甲Tenebriomolitor 6龄幼虫后均能诱导其
产生抗菌物质,收集的血淋巴上清液对真菌有抑制作用,对细菌无抑制作用;经热处理后的血
淋巴上清液则对细菌有抑制作用,而对真菌无抑制作用。SDS-PAGE检测结果发现,与未诱导的
对照相比经诱导的黄粉甲幼虫血淋巴中,原有的一类大分子蛋白质如分子量分别为97kD、44
kD和37 kD左右的蛋白质缺失;而ESI-MS分析结果显示诱导后比诱导前黄粉甲幼虫血淋巴中有
小分子物质产生,推测可能是此类缺失蛋白质分解为小分子量的抗菌肽,从而表现出抗菌活性
。 相似文献