An Easy and Fast Method for Production of Chinese Hamster Ovary Cell Line Expressing and Secreting Human Recombinant Activin A

(Pages: 140-148)
Hassan Rassouli, Ph.D, 1,2,*Ali Sayadmanesh, M.Sc, 3Siamak Rezaeiani, M.Sc, 3Zahra Ghezelayagh, M.Sc, 3,4Mohammad Reza Gharaati, Ph.D., 3Tahamtani Yaser, Ph.D, 1,2,*
1. Department of Molecular Systems Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
2. Department of Medical Laser, Medical Laser Research Center, Yara Institute, ACECR, Tehran, Iran
3. Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Ira
4. Department of Developmental Biology, University of Science and Culture, Tehran, Iran
5. Interdisciplinary Department for Diabetes, Obesity and Metabolism, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
1. Department of Molecular Systems Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
2. Department of Medical Laser, Medical Laser Research Center, Yara Institute, ACECR, Tehran, Iran
3. Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Ira
4. Department of Developmental Biology, University of Science and Culture, Tehran, Iran
5. Interdisciplinary Department for Diabetes, Obesity and Metabolism, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
*Corresponding Addresses: P.O.Box: 16635-148 Department of Molecular Systems Biology Cell Science Research Center Royan Institute for Stem Cell Biology and Technology ACECR Tehran Iran Department of Stem Cells and Developmental Biology Cell Science Research Center Royan Institute for Stem Cell Biology and Technology ACECR Tehran Iran Emails:hassan.rassouli@royaninstitute.org,yasertahamtani@Royaninstitute.org
The Cell Journal (Yakhteh) is an open access journal which means the articles are freely available online for any individual author to download and use the providing address. The journal is licensed under a Creative Commons Attribution-Non Commercial 3.0 Unported License which allows the author(s) to hold the copyright without restrictions that is permitting unrestricted use, distribution, and reproduction in any medium provided the original work is properly cited. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Rassouli H, Sayadmanesh A, Rezaeiani S, Ghezelayagh Z, Gharaati MR, Tahamtani Y. An easy and fast method for production of Chinese hamster ovary cell line expressing and secreting human recombinant activin A. Cell J. 2020; 22(2): 140-148. doi: 10.22074/cellj.2020.6580.

Abstract

Objective

Growth factors are key elements of embryonic stem cell (ESC) research. Cell line development in eukaryotes is a time-consuming procedure which usually takes 12-18 months. Here, we report an easy and fast method with which production of Chinese hamster ovary (CHO) cells that express and secrete recombinant Activin A, as a major growth factor in endo/mesoderm differentiation of embryonic stem cells is achieved within 3-4 weeks.

Materials and Methods

In this experimental study, we cloned human Activin A into the pDONR/Zeo gateway entry vector using the BP reaction. Activin A was subcloned next into the pLIX_403 and pLenti6.3/TO/V5-DEST destination vectors by the LR reaction. The result was the production of constructs with which 293T cells were finally transfected for virus production. CHO cells were transduced using viral particles to produce a cell line that secretes the His6- Activin A fusion protein.

Results

We developed a quick protocol which saves up to 3-4 weeks of time for producing recombinant proteins in CHO cells. The recombinant cell line produced 90 mg/L of functional Activin A measured in human ESC line Royan H5 (RH5), during in vitro differentiation into meso-endoderm and definitive endoderm.

Conclusion

Our results showed no significant differences in functionality between commercial Activin A and the one produced using our novel protocol. This approach can be easily used for producing recombinant proteins in CHO.