Notice of Introduction of Protein High
Expression Technology
and Launch of the Related Business
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We hereby announce that TRANS GENIC INC. (hereinafter
referred to as q‡weqˆ) concluded a license agreement with Hiroshima
Technology Licensing Office (hereinafter referred to as q‡Hiroshima
TLOqˆ) on April 24, 2007 for a basic technology to produce a large
quantity of protein in mammalian cells (hereinafter referred to
as q‡the technologyqˆ), in order to launch a business using the technology. |
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We have conducted a feasibility study to start up a business using
the technology, with Hiroshima University and Hiroshima TLO based
on a business tie-up with them for technology transfer concluded
on May 24, 2005 and recently completed examining it. Accordingly
we have obtained a license, with right to sublicense, for the following
three business operations developed by inventions owned by Hiroshima
University (patent numbers are JP3755028 and JP3882042).
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1)
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Custom production service of protein |
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2)
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Custom production service of mammalian cells expressing
a large amount of proteins)
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Production and distribution of protein products
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This revolutionary technology, invented by Noriaki
Shimizu, associate professor of Graduate School of Biosphere Science,
Hiroshima University, can amplify genes exponentially and express
proteins in immense quantities by transfecting IR/MAR vectors(*1)
and target genes in mammalian cells. q_It is a fundamental technology
widely applicable to protein production and has the following advantages.
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qdApplicable to a wide variety of mammalian cells.
qdAble to produce a large quantity of human and animal proteins under the
same physiological conditions as in vivo.
qdAble to produce cells expressing a large amount of protein in a simple
method.
qdAble to produce safer protein products since no virus or microorganism
are used.
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Thanks to these advantages, the technology can be widely
applicable to production of biotechnology-based drugs, enzymes
for food processing, cosmetic ingredients, and protein products
including research reagents as well as various researches on structures
and physiological functions of proteins. We will start up a business
of custom production service and distribution of cells expressing
a large amount of proteins and a sublicense business of the technology.
We are now establishing a series of technological
platforms related to protein, centering on antibody production
technologies. The introduction of the technology is a part of these
mid- and long-term efforts and we believe it will substantially
contribute to our R&D activities.
The effects of this announcement on our business performance
are as yet unknown, but we will make an announcement as soon as
it is revealed to have a significant impact on our future performance.
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*1
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IR/MAR Vector
It is a plasmid vector, bearing a mammalian replication initiation
region (IR) and a matrix attachment region (MAR), which is shown
to be efficiently amplified to high copy number in mammalian
cells and to generate chromosomal homogeneously staining regions
(HSRs). The amplification mechanism, a characteristic of cancer
cells, is suggested to entail a head-on collision at the MAR
between the transcription machinery and the hypothetical replication
fork arriving from the IR, leading to double strand breakage
(DSB) that triggered HSR formation.
Hiroshima TLO
http://www.hiwave.or.jp/tlo/
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