Plant-Made Trastuzumab (Herceptin) Inhibits HER2/Neu+ Cell Proliferation and Retards Tumor Growth
2011

Plant-Made Trastuzumab Inhibits Cancer Cell Growth

Sample size: 34 publication 10 minutes Evidence: moderate

Author Information

Author(s): Komarova Tatiana V., Kosorukov Vyacheslav S., Frolova Olga Y., Petrunia Igor V., Skrypnik Ksenia A., Gleba Yuri Y., Dorokhov Yuri L.

Primary Institution: A.N. Belozersky Institute of Physico-Chemical Biology, Moscow State University

Hypothesis

Can trastuzumab produced in plants effectively inhibit cancer cell proliferation and tumor growth?

Conclusion

Plant-made trastuzumab is effective in suppressing cancer cell proliferation and tumor growth.

Supporting Evidence

  • Plant-made trastuzumab bound to HER2/neu oncoprotein and inhibited SK-BR-3 cell proliferation.
  • In vivo studies showed that PMT administration retarded tumor growth in a mouse model.
  • The study demonstrated that PMT had similar effects to the commercially available trastuzumab.

Takeaway

Scientists made a cancer-fighting medicine from plants, and it worked well to stop cancer cells from growing.

Methodology

The study used an Agrobacterium-mediated transient expression system to produce trastuzumab in Nicotiana benthamiana plants and tested its effects on cancer cell lines and in a mouse model.

Limitations

The study does not fully establish that plant-made trastuzumab is biosimilar to the original trastuzumab.

Participant Demographics

The study involved human cancer cell lines and a mouse model.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0017541

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