IL6 Human, Sf9

BSF2, HGF, HSF, IFNB2, IL-6.

Interleukin-6 or Il-6 is a cytokine with a large assortment of biological functions. IL-6 it has a crucial part in the last differentiation of b-cells into ig-secreting cells. This cytokine also induces myeloma and plasmacytoma growth. Interleukin-6 induces nerve cells differentiation, among hepatocytes it induces acute phase reactants.

IL6 Human Recombinant produced in Baculovirus is a single glycosylated polypeptide chain containing 189 amino acids (30-212aa) and having a molecular mass of 21.6kDa.(Migrates at 18-28kDa on SDS-PAGE under reducing conditions).
IL6 is fused to a 6 amino acid His-Tag at C-terminus and purified by proprietary chromatographic techniques.

IL6 protein (0.5mg/ml) contains Phosphate Buffered Saline (pH 7.4) and 10% glycerol.

Store at 4°C if entire vial will be used within 2-4 weeks.
Store, frozen at -20°C for longer periods of time.
For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).
Avoid multiple freeze-thaw cycles.

Greater than 95.0% as determined by SDS-PAGE.

The ED50, determined by cell proliferation assay using TF-1 human erythroleukemic cell, is 0.2 - 0.8 ng/ml . 

VPPGEDSKDV AAPHRQPLTS SERIDKQIRY ILDGISALRK ETCNKSNMCE SSKEALAENN
LNLPKMAEKD GCFQSGFNEE TCLVKIITGL LEFEVYLEYL QNRFESSEEQ ARAVQMSTKV
LIQFLQKKAK NLDAITTPDP TTNASLLTKL QAQNQWLQDM TTHLILRSFK EFLQSSLRAL RQMHHHHHH.

SDS

Production and Applications of Human Recombinant Interleukin-6 in Sf9 Cells

Abstract:

Interleukin-6 (IL-6) holds a central role in immune regulation, inflammation, and hematopoiesis. The production of Human Recombinant IL-6 using the Sf9 insect cell system presents a versatile approach for investigating its biological functions and potential therapeutic applications. This paper outlines the methodology of producing Human Recombinant IL-6 in Sf9 cells and explores its significance in immunological research and clinical studies.

Introduction:

IL-6 is a multifunctional cytokine pivotal in various physiological processes, making it a target of intensive research. The expression of Human Recombinant IL-6 facilitates investigations into its intricate mechanisms and offers potential avenues for therapeutic development. The Sf9 cell system, harnessed from Spodoptera frugiperda, enables efficient recombinant protein expression through baculovirus vectors.

Methods:

Production of Human Recombinant IL-6 involves cloning the human IL-6 gene into a baculovirus transfer vector, which is co-transfected with linearized baculovirus DNA into Sf9 cells. The resultant recombinant baculovirus generates and secretes IL-6 into the culture medium. Purification methods, such as chromatography, ensure the protein's quality and functionality.

Applications:

Human Recombinant IL-6 from Sf9 cells has broad applications. It serves as a critical tool for investigating IL-6's roles in immune responses, inflammation, and hematopoiesis. Additionally, it plays a crucial role in the development of therapies targeting IL-6-associated disorders like autoimmune diseases, chronic inflammatory conditions, and cancer.

Sf9 Expression Advantages:

The Sf9 system offers notable advantages, including post-translational modifications and protein folding, necessary for IL-6's biological activity. Sf9 cells provide a platform for generating properly folded and functional recombinant IL-6, reflecting its native structure and function.

Challenges and Future Prospects:

While Sf9-based expression of Human Recombinant IL-6 offers significant advantages, optimization of expression conditions and scale-up strategies remain challenges. Furthermore, the therapeutic potential of Human Recombinant IL-6 requires in-depth preclinical and clinical investigations.

Conclusion:

The production of Human Recombinant IL-6 in Sf9 cells through baculovirus expression offers a powerful tool to comprehend IL-6's multifaceted roles in health and disease. This technology is poised to expand our knowledge of IL-6-related conditions and catalyze the development of precision therapeutic interventions.

Bibliography:

1. Kishimoto T. Interleukin-6: discovery of a pleiotropic cytokine. Arthritis Res Ther. 2006;8 Suppl 2(Suppl 2):S2.
2. Heinrich PC, Behrmann I, Haan S, et al. Principles of interleukin (IL)-6-type cytokine signalling and its regulation. Biochem J. 2003;374(Pt 1):1-20.
3. Chaudhury A, Husby G, Rao KV. Production of biologically active recombinant human interleukin-6 in a baculovirus expression system. Protein Expr Purif. 2000;18(2):173-178.
4. Luckow VA, Lee SC, Barry GF, Olins PO. Efficient generation of infectious recombinant baculoviruses by site-specific transposon-mediated insertion of foreign genes into a baculovirus genome propagated in Escherichia coli. J Virol. 1993;67(8):4566-4579.
5. Rose-John S, Scheller J, Elson G, Jones SA. Interleukin-6 biology is coordinated by membrane-bound and soluble receptors: role in inflammation and cancer. J Leukoc Biol. 2006;80(2):227-236.