Journal of Plant Biotechnology

The Korean Society of Plant Biotechnology (한국식물생명공학회)
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Production of hGM-CSF from Cell Suspension Culture of Transformed Lettuce Using Agrobacterium-mediated Transformation System

Agrobacterium을 이용한 형질전환 상추의 세포 현탁배양으로부터 hGM-CSF의 생산

  • Published : 2003.03.01
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Abstract

Lettuce (Lactuca sativa) was transformed with Agrobacterium tumefacience LBA4404 containing human granulocyte macrophage colony stimulating factor (hGM-CSF) gene to produce in cell suspension cultures. Cell suspension culture was established using callus from transgenic lettuce plant. Integration of hGM-CSF gene into plant chromosome was confirmed through genomic PCR and Southern blot analysis. In addition, Northern blot analysis indicated the expression of the introduced hGM-CSF gene in transformed lettuce. The recombinant hGM-CSF was expressed in transgenic cell cultures derived from transgenic plants as a yield of about 149.0 $\mu\textrm{g}$/L in culture filtrate, which was determined by ELISA. These results demonstrated that transformed lettuce cell suspension cultures could be used as a production system of therapeutic proteins such as hGM-CSF.

hGM-CSF가 식물세포 현탁 배양을 통하여 생산이 가능한지를 조사하기 위하여 hGM-CSF를 포함하고 있는 A. tumerfaciens LBA4404를 가지고 상추에 형질전환시켰다. 형질전환된 상추로부터 캘러스를 유도하여 캘러스를 이용한 세포배양체계를 확립하였다. PCR과 Southern blot analysis 결과 상추에 hGM-CSF 유전자가 도입된 것을 확인하였으며, Northern blot analysis 결과 상추식물체에 hGM-CSF 유전자가 발현됨을 확인하였다. 현탁 배양 세포로부터 분비된 hGM-CSF를 ELISA를 이용하여 측정한 결과 149.0 $\mu\textrm{g}$/L가 생산됨 을 확인하였다 이러한 결과는 상추의 현탁 배양 세포가 hGM-CSF와 같은 치료용 단백질의 생산 숙주로 이용될 수 있음을 보여주었다.

Keywords

References

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