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Pinellia Ternata Agglutinin Produced in Bombyx Mori Cells Exhibits Bioactivity
SUNLONG BIOTECH / 2024-01-09
  • Author:Xu, T., Wang, B., Wang, L., Zhang, Y. & Lv, Z.

  • Periodical:Acta biochimica Polonica 59, 231-236 (2012)

  • Article source

Pinellia ternata agglutinin (PTA) is highly homologous to many other monocot mannose-binding lectins which reportedly possess antitumor activities. Its production in silkworm cells has great application potential because the baculovirus expression system can produce post-translationally modified proteins at low cost. In the current study, the pta gene was cloned and expressed in silkworm cells, and the expressed protein was analyzed using a hemagglutination assay. A preliminary in vitro study on its anti-proliferative activity was performed. The results show that the recombinant PTA with an apparent molecular mass of 29 kDa can hemagglutinate rabbit erythrocytes and this activity can be inhibited by D-mannan at a low concentration. In addition, the recombinant hemagglutinin exhibited a dose-dependent anti-proliferative activity on hepatoma cells. The results of the current study suggest that PTA and other important bioactive proteins could be produced by silkworm bioreactor for biomedicine research and application.

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