Abstract

Abstract Molecular farming is production of pharma-ceutically and industrially important proteins in plants. Plants and plant cell culture systems have been used as bio-factory to produce recombinant proteins such as mono-clonal antibodies, enzymes, vaccines, hormones, interleukins, commercial enzymes and etc. The terms molecular farming, biofarming, molecular pharming, phytomanufacturing, re-combinant or plant-made industrials, planta-pharma, plant bioreactors, plant biofactory, and pharmaceutical gardening are used interchangeably. Molecular farming can provide safe and inexpensive pharmaceutical proteins as well as commercial ones. In spite of several advantages of molecular farming such as safety and inexpensive cost, there are also a couple of drawbacks in the existing technology. One of them is low expression level of target gene in plants, which has been improved by optimizing gene-based codon usage, screening of strong promoters, expression of transcription factors, subcellular targeting of target proteins, chloroplast transformation, and transient expression using viral expres-sion system (magnifection). Some plant-based commercial proteins have already been in markets and more than twenty plant-based pharmaceuticals have been in clinical trials, from that we can expect that several plant-based pharma-ceutical proteins will be seen in the markets in the near future.

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