What question did this study set out to answer?

Purify human fibroblast-derived hybridoma growth factor to homogeneity and clarify its molecular identity relative to other cytokine designations.

November 1, 1987European Journal of BiochemistryOpen Access

Purification and characterization of human fibroblast‐derived hybridoma growth factor identical to T‐cell‐derived B‐cell stimulatory factor‐2 (interleukin‐6)

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Authors

JDJo Van DammeKU Leuven SCSylvie CayphasGlaxoSmithKline (Belgium)JSJ Van SnickLudwig Cancer Research

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Implication

In vitro study demonstrates identity between fibroblast hybridoma growth factor and B-cell stimulatory factor-2, indicating a unified role for interleukin-6.

Key Points

Purify human fibroblast-derived hybridoma growth factor to homogeneity and clarify its molecular identity relative to other cytokine designations.
Stimulated human MG-63 osteosarcoma fibroblast cultures with interleukin-1 to produce hybridoma growth factor.
Conducted a five-step purification protocol comprising controlled pore glass adsorption, antibody affinity chromatography, gel filtration, cation-exchange chromatography, and reversed-phase HPLC.
Determined the amino-terminal sequence of the purified active component and compared it to known cytokine cDNA sequences.
Achieved a 10,000-fold purification yielding electrophoretically pure factor with a specific activity of 10^9 units/mg.
Identified two biologically active components, with amino-terminal sequencing matching predicted sequences for 26-kDa protein, interferon-beta 2, and B-cell stimulating factor-2.
Demonstrated that the fibroblast-secreted factor possesses B-cell growth stimulatory activity, establishing the unifying designation of interleukin-6.

Cite This Study

Damme et al. (1987) studied this question.

synapsesocial.com/papers/6a15a6cd5347fbb173a018ff https://doi.org/10.1111/j.1432-1033.1987.tb13452.x

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Implication

In vitro study demonstrates identity between fibroblast hybridoma growth factor and B-cell stimulatory factor-2, indicating a unified role for interleukin-6.

Purification and characterization of human fibroblast‐derived hybridoma growth factor identical to T‐cell‐derived B‐cell stimulatory factor‐2 (interleukin‐6)

Discussion

Member takes

Implication

Key Points

Cite This Study

Purification and characterization of human fibroblast‐derived hybridoma growth factor identical to T‐cell‐derived B‐cell stimulatory factor‐2 (interleukin‐6)

Discussion

Member takes

Implication

Key Points

Cite This Study

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