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Open AccessJournal ArticleDOI

Two interferon mRNAs in human fibroblasts: in vitro translation and Escherichia coli cloning studies.

TLDR
Two mRNA species that produce biologically active interferon were isolated from human fibroblasts and studied by size fractionation and cloning in Escherichia coli plasmid pBR322, but both are induced by poly(rI.rC), but IFN-beta 2 mRNA is induced to about 10% in cells by cycloheximide treatment alone whereas under these conditions IFn-beta 1 is not induced.
Abstract
Two mRNA species that produce biologically active interferon were isolated from human fibroblasts and studied by size fractionation and cloning in Escherichia coli plasmid pBR322. The major fibroblast interferon (Hu IFN-beta 1) is coded for by the smaller of the two mRNAs, an 11S species, 900 nucleotides long, which in cell-free systems yields a 20,000 Mr protein. The second interferon mRNA species (Hu IFN-beta 2) is 14S, about 1300 nucleotides long, and codes for another protein of 23,000-26,000 Mr. The two interferon mRNAs do not cross-hybridize. Both are induced by poly(rI.rC), but IFN-beta 2 mRNA is induced to about 10% in cells by cycloheximide treatment alone whereas under these conditions IFN-beta 1 is not induced.

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Journal ArticleDOI

The biology of interleukin-6.

TL;DR: Human IL-6 (BSF2) was originally identified as a factor in the culture supernatants of mitogen or antigen-stimulated peripheral mononuclear cells, which induced immunoglobulin production in Epstein Barr virus transformed B-cell lines or in Staphylococcus aureus Cowan 1 stimulated normal B cells.
Journal ArticleDOI

Muscle as an endocrine organ: focus on muscle-derived interleukin-6.

TL;DR: This review focuses on the myokine IL-6, its regulation by exercise, its signaling pathways in skeletal muscle, and its role in metabolism in both health and disease.
Journal ArticleDOI

Interferon beta 2/B-cell stimulatory factor type 2 shares identity with monocyte-derived hepatocyte-stimulating factor and regulates the major acute phase protein response in liver cells

TL;DR: It is demonstrated that monocyte-derived hepatocyte-stimulating factor and IFN-beta 2 share immunological and functional identity and that IFN -beta 2, also known as B-cell stimulatory factor and hybridoma plasmacytoma growth factor, has the hepatocyte as a major physiologic target and thereby is essential in controlling the hepatic acute phase response.
Journal ArticleDOI

Cytokine release syndrome in severe COVID-19: interleukin-6 receptor antagonist tocilizumab may be the key to reduce mortality.

TL;DR: Tocilizumab is a blocker of IL-6R, which can effectively block IL- 6 signal transduction pathway, and is likely to become an effective drug for patients with severe COVID-19.
Book ChapterDOI

Interleukin-6 in biology and medicine

TL;DR: Application of IL-6 is promising in cancer treatment as well as in treatment of radiation- or chemotherapy-induced myelosuppression and the cell biology of the intracellular events that link transduction to gene regulation is an important area, and work on these topics helps to understand such phenomena as multifunction of IL -6 and bidirectional effects of cell growth depending on the cell type.
References
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Journal ArticleDOI

Colony hybridization: a method for the isolation of cloned DNAs that contain a specific gene.

TL;DR: This method can be used to isolate clones of ColE1 hybrid plasmids that contain Drosophila melanogaster genes for 18 and 28S rRNAs and any gene whose base sequence is represented in an available RNA.
Journal ArticleDOI

Method for detection of specific RNAs in agarose gels by transfer to diazobenzyloxymethyl-paper and hybridization with DNA probes

TL;DR: This procedure allows detection of specific RNA bands with high sensitivity and low background by hybridization with 32P-labeled DNA probes followed by autoradiography.
Journal ArticleDOI

Nucleotide sequence of the rightward operator of phage lambda

TL;DR: The sequence of 72 base pairs of the rightward operator (O-R) of bacteriophage lambda is presented as determined with simple and rapid methods for direct DNA sequencing and three sites recognized by the lambda phage repressor are identified.
Journal ArticleDOI

Selective multiplication of dihydrofolate reductase genes in methotrexate-resistant variants of cultured murine cells.

TL;DR: It is concluded that selective multiplication of the dihydrofolate reductase gene can account for the overproduction of dihydRO- in parental and methotrexate-resistant lines of L1210 murine lymphoma cells.
Journal ArticleDOI

Three abundance classes in HeLa cell messenger RNA

TL;DR: Approximately 35,000 different poly(A)-containing RNA sequences are present in HeLa cell cytoplasm and the sequences are grouped in three distinct abundance classes.
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