Abstract
Monoclonal antibodies (mAbs) are one of the most significant molecules in protein therapeutics. They are employed in the field of immunology, oncology and organ transplant. They have been also been employed for alleviating several bacterial and viral infections. Moreover, they have revolutionized the area of targeted therapy and improved the quality of treatments, as compared to other cytotoxic drugs and therapies. mAbs bind to specific molecules on the antigen and exhibit specificity towards that molecule, i.e. epitope. Thus, mAbs have immense opportunity to be explored for personalized therapy. The introduction of targeted mAb-based therapeutics has promoted many important scientific achievements in rheumatology. This has warranted additional investigations for developing newer mAb producing clones, to supplement the limited industrial production of certain mAb therapeutics. In this investigation, an integrative approach comprising optimized expression, selection and expansion was adopted to develop a mammalian cell line expressing mAb against TNF-α.The resulting stable clone is anticipated to serve as an economic alternative to the industrial clones, especially for research purposes. The clone was constructed for development of biosimilar of the highly valued therapeutic antibody, Humira.
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Abbreviations
- mAb:
-
Monoclonal antibody
- TNF- α:
-
Tumor necrosis factor alpha
- CHO-K1:
-
Chinese hamster ovary –K1
- G418:
-
Geneticin
- FBS:
-
Fetal bovine serum
- BSA:
-
Bovine serum albumin
- ADCC:
-
Antibody dependent cell mediated cytoxicity
- HRP:
-
Horseradish peroxidase
- ELISA:
-
Enzyme-linked immunosorbent assay
- HT:
-
Hypoxanthine
- TMB:
-
Tetramethylenebenzidine
- PCD:
-
Picogram protein/cell/day
- HC:
-
Heavy chain
- LC:
-
Light chain
- IRES:
-
Internal ribosome entry site
- FITC:
-
Fluorescein isothiocyanate
- DAPI:
-
4′,6-Diamidino-2-phenylindole
- IgG:
-
Immunoglobulin
- Fc:
-
Fragment crystallizable region
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Acknowledgements
Kritika Gupta is thankful to Indian Council of Medical Research(ICMR), No. 3/1/3/JRF-2015/HRD-LS/29/31232/85 for fellowship and financial support. Deepak Modi is thankful to ICMR for financial support. Prajakta Dandekar is thankful to Department of Science and Technology (DST), Science and Engineering Research Board (SERB): Ramanujan Fellowship Grant (SR/S2/RJN-139/2011) and UGC for Start-up Grant20-1/2012 (BSR)/20-1(10)/2012(BSR). Ratnesh Jain is thankful to DBT, Ministry of Science and Technology: Ramalingaswami Fellowship Grant (BT/RLF/Re-entry/51/2011).
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Gupta, K., Modi, D., Jain, R. et al. A Stable CHO K1 Cell Line for Producing Recombinant Monoclonal Antibody Against TNF-α. Mol Biotechnol 63, 828–839 (2021). https://doi.org/10.1007/s12033-021-00329-4
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DOI: https://doi.org/10.1007/s12033-021-00329-4