Int. J. Mol. Sci. 2013, 14(2), 3556-3567; doi:10.3390/ijms14023556
Article

Expression of a Functional Recombinant Human Basic Fibroblast Growth Factor from Transgenic Rice Seeds

Na An 1 email, Jiquan Ou 2,3 email, Daiming Jiang 2,3 email, Liping Zhang 1 email, Jingru Liu 2,3 email, Kai Fu 1 email, Ying Dai 2,3 email and Daichang Yang 1,2,* email
1 Engineering Research Center for Plant Biotechnology and Germplasm Utilization, Ministry of Education, State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan 430072, China 2 Wuhan Institute of Biotechnology, Biolake, Wuhan 430075, China 3 Healthgen Biotechnology Ltd. Co., Biolake, Wuhan 430075, China
* Author to whom correspondence should be addressed.
Received: 29 November 2012; in revised form: 22 January 2013 / Accepted: 31 January 2013 / Published: 7 February 2013
(This article belongs to the Special Issue Plant-Derived Pharmaceuticals by Molecular Farming 2012)
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Abstract: Basic fibroblast growth factor (FGF-2) is an important member of the FGF gene family. It is widely used in clinical applications for scald and wound healing in order to stimulate cell proliferation. Further it is applied for inhibiting stem cell differentiation in cultures. Due to a shortage of plasma and low expression levels of recombinant rbFGF in conventional gene expression systems, we explored the production of recombinant rbFGF in rice grains (Oryza sativa bFGF, OsrbFGF). An expression level of up to 185.66 mg/kg in brown rice was obtained. A simple purification protocol was established with final recovery of 4.49% and resulting in a yield of OsrbFGF reaching up to 8.33 mg/kg OsrbFGF. The functional assay of OsrbFGF indicated that the stimulating cell proliferation activity on NIH/3T3 was the same as with commercialized rbFGF. Wound healing in vivo of OsrbFGF is equivalent to commercialized rbFGF. Our results indicate that rice endosperm is capable of expressing small molecular mass proteins, such as bFGF. This again demonstrates that rice endosperm is a promising system to express various biopharmaceutical proteins.
Keywords: recombinant human bFGF; rice endosperm; protein expression and processing; cell proliferation and wound healing

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MDPI and ACS Style

An, N.; Ou, J.; Jiang, D.; Zhang, L.; Liu, J.; Fu, K.; Dai, Y.; Yang, D. Expression of a Functional Recombinant Human Basic Fibroblast Growth Factor from Transgenic Rice Seeds. Int. J. Mol. Sci. 2013, 14, 3556-3567.

AMA Style

An N, Ou J, Jiang D, Zhang L, Liu J, Fu K, Dai Y, Yang D. Expression of a Functional Recombinant Human Basic Fibroblast Growth Factor from Transgenic Rice Seeds. International Journal of Molecular Sciences. 2013; 14(2):3556-3567.

Chicago/Turabian Style

An, Na; Ou, Jiquan; Jiang, Daiming; Zhang, Liping; Liu, Jingru; Fu, Kai; Dai, Ying; Yang, Daichang. 2013. "Expression of a Functional Recombinant Human Basic Fibroblast Growth Factor from Transgenic Rice Seeds." Int. J. Mol. Sci. 14, no. 2: 3556-3567.

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