Entwicklung eines "plant-based" Impfstoffs gegen den Lungenwurm des Rindes Magisterarbeit
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47,95 €
inkl. gesetzl. MwSt.,
Beschreibung
Produktdetails
Einband
Taschenbuch
Erscheinungsdatum
04.07.2014
Abbildungen
mit 4 Farbabbildungen
Verlag
GRINSeitenzahl
104
Maße (L/B/H)
21/14,8/0,8 cm
Gewicht
163 g
Auflage
1. Auflage
Sprache
Deutsch
ISBN
978-3-656-68978-2
pharmaceuticals instead of feed and food production, are nowadays referred to as
pharmaceutical plants. Due to genetic modification, these pharmaceutical plants
produce important proteins (vaccines or antibodies) for pharmaceutical use as
enzymes for different applications. In order to produce these proteins/enzymes the
coding DNA are incorporated into the genome of plant where the plants will express
the protein to high level producing low cost molecules compared with other
expression systems like cell culture, hypridoma, fermentas. As well as, when the
target proteins has a lethal effect on E.coli hindering the overexpression. In temperate
climates such as Northern Germany the lungworm (Dictyocaulus viviparous) is one of
the economically most important parasites of cattle. This parasite causes parasitic
bronchitis disease, which occurs in varying intensity and-in some cases-can lead to
death of the infected animals.
It was possible to control a lung worm infection with anthelmintics and even in some
countries with a live vaccine, which consists of X-ray attenuated larvae and pasturage
technical measures. This vaccine can only induce a robust immunity in cattle for a
few months. In addition, the production of these vaccines is very costly and suffers
from limited durability. Therefore, an attempt was made in this work to produce
recombinant proteins in high purity and in large amounts by using tobacco plants and
to use these proteins instead of the previously available immunization as a vaccine
with high efficiency.
First, the vectors were constructed harbouring SOD (superoxide dismutase
pGIIMH35S-SOD vector size approximately 6138 bp). and NMT (N-methyl)
(pGIIMH35S NMT-HIS vector size approximately 6322 bp) since expression of SOD
and NMT showed a toxic effect in E. coli, alternative system is needed like plantAbstract
IV
based expression. Therefore, they were genetically transfered into tobacco plants
using Agrobacterium tumefaciens mediated transformation. Different molecular
biology methods were used to confirm the integration of the genes into gDNA of
tobacco like PCR and RT-PCR using different sets of primers at DNA and RNA level
and functional assays using Basta herbicide and enzymatic assys at protein level.
The desired proteins were detected by western blot and their enzyme activity was
measured. [...]
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