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Colored Fluorescent Silk Made by Transgenic Silkworms

机译：转基因蚕制成的彩色荧光丝

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摘要

Silk is a protein fiber used to weave fabrics and as a biomaterial in medical applications. Recently, genetically modified silks have been produced from transgenic silkworms. In the present study, transgenic silkworms for the mass production of three colors of fluorescent silks, (green, red, and orange) are generated using a vector originating from the fibroin H chain gene and a classical breeding method. The suitability of the recombinant silks for making fabrics is investigated by harvesting large amounts of the cocoons, obtained from rearing over 20 thousand silkworms. The application of low temperature and a weakly alkaline solution for cooking and reeling enables the production of silk fiber without loss of color. The maximum strain tolerated and Young's modulus of the fluorescent silks are similar to those of ordinary silk, although the maximum stress value of the recombinant silk is slightly lower than that of the control. Fabrics with fluorescent color are demonstrated using the recombinant silk, with the color persisting for over two years. The results indicate that large amounts of genetically modified silk can be made by transgenic silkworms, and the silk is applicable as functional silk fiber for making fabrics and for use in medical applications.
机译：丝绸是一种蛋白质纤维，用于编织织物，并在医疗应用中用作生物材料。最近，已经从转基因蚕中生产了转基因蚕丝。在本研究中，使用源自纤维蛋白H链基因的载体和经典育种方法，产生了用于大量生产三种颜色的荧光丝（绿色，红色和橙色）的转基因家蚕。通过收获大量的蚕茧来研究重组蚕丝对织物的适应性，这些蚕茧是从饲养两万多只蚕获得的。将低温和弱碱性溶液用于蒸煮和卷取，可以生产丝纤维而不会损失颜色。尽管重组丝的最大应力值略低于对照，但荧光丝的最大应变容忍度和杨氏模量与普通丝相似。使用重组丝绸证明了具有荧光色的织物，其颜色持续了两年以上。结果表明，转基因蚕可以制备大量的转基因蚕丝，并且该蚕丝可用作功能性蚕丝纤维，用于制造织物和用于医疗应用。

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  • 来源
    《Advanced Functional Materials》 |2013年第42期|5232-5239|共8页
  • 作者

    Tetsuya lizuka; Hideki Sezutsu; Ken-ichiro Tatematsu; Isao Kobayashi; Naoyuki Yonemura; Keiro Uchino; Kenichi Nakajima; Katsura Kojima; Chiyuki Takabayashi; Hiroaki Machii; Katsushige Yamada; Hiroyuki Kurihara; Tetsuo Asakura; Yasumoto Nakazawa; Atsushi Miyawaki; Satoshi Karasawa; Hatsumi Kobayashi; Junji Yamaguchi; Nobuo Kuwabara; Takashi Nakamura; Kei Yoshii; Toshiki Tamura;

  • 作者单位

    National Institute of Agrobiological Sciences Tsukuba, Ibaraki 305-8634, Japan;

    National Institute of Agrobiological Sciences Tsukuba, Ibaraki 305-8634, Japan;

    National Institute of Agrobiological Sciences Tsukuba, Ibaraki 305-8634, Japan;

    National Institute of Agrobiological Sciences Tsukuba, Ibaraki 305-8634, Japan;

    National Institute of Agrobiological Sciences Tsukuba, Ibaraki 305-8634, Japan;

    National Institute of Agrobiological Sciences Tsukuba, Ibaraki 305-8634, Japan;

    National Institute of Agrobiological Sciences Tsukuba, Ibaraki 305-8634, Japan;

    National Institute of Agrobiological Sciences Tsukuba, Ibaraki 305-8634, Japan;

    National Institute of Agrobiological Sciences Tsukuba, Ibaraki 305-8634, Japan;

    National Institute of Agrobiological Sciences Tsukuba, Ibaraki 305-8634, Japan;

    New Frontiers Research Laboratories Toray Industries, Inc. Kamakura, Kanagawa 248-8555, Japan;

    New Frontiers Research Laboratories Toray Industries, Inc. Kamakura, Kanagawa 248-8555, Japan;

    Department of Biotechnology Tokyo University of Agriculture and Technology Koganei, Tokyo 184-8588, Japan;

    Department of Biotechnology Tokyo University of Agriculture and Technology Koganei, Tokyo 184-8588, Japan;

    Brain Science Institute RIKEN, Wako, Saitama 351-0198, Japan;

    Amalgaam, Ltd., 2-9-3 Itabashi, Tokyo 173-0004, Japan;

    Gunma Sericultural Technology Center Maebashi, Gunma 371-0852, Japan;

    Gunma Sericultural Technology Center Maebashi, Gunma 371-0852, Japan;

    Gunma Sericultural Technology Center Maebashi, Gunma 371-0852, Japan;

    Cunma Industrial Technology Center Maebashi, Cunma 379-2147, Japan;

    Textile Research Institute of Cunma Kiryu, Gunma 376-0011, Japan;

    National Institute of Agrobiological Sciences Tsukuba, Ibaraki 305-8634, Japan;

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