title: Polymerase chain reaction cloning and expression of the rat granulocyte-macrophage colony-stimulating factor.
abstract: We used reverse transcription-polymerase chain reaction (RT-PCR) to clone a rat complementary DNA that encoded the PVG rat granulocyte-macrophage colony-stimulating factor (GM-CSF). PCR products were cloned into a eukaryotic expression vector and transfected into the mouse myeloma cell line Sp2/0-Ag14. Cell culture supernatants of two of these transfectants supported proliferation of the growth factor-dependent cell line, DA-3, and promoted myeloid colony formation in rat and mouse bone marrow cell (BMC) cultures. The GM-CSF activity in these supernatants was neutralized by a polyclonal antibody to mouse GM-CSF. The cloning and expression of rat GM-CSF provides a valuable reagent for the study of the biology and clinical applications of the GM-CSFs.
authors: University of Wisconsin Medical School, Milwaukee 53215, USA.
authors: M K
authors: MK
authors: Oaks
authors: R T
authors: RT
authors: Penwell
authors: C H
authors: CH
authors: Suh
authors: A J
authors: AJ
authors: Tector
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D002478:Cells, Cultured; D003001:Cloning, Molecular; D005260:Female; D015870:Gene Expression; D005822:Genetic Vectors; D016178:Granulocyte-Macrophage Colony-Stimulating Factor / Q000096:biosynthesis / Q000235:genetics*; D051379:Mice; D008969:Molecular Sequence Data; D010957:Plasmids; D016133:Polymerase Chain Reaction; D051381:Rats; D011994:Recombinant Proteins / Q000096:biosynthesis; D017386:Sequence Homology, Amino Acid; D014158:Transcription, Genetic; D014162:Transfection; D014407:Tumor Cells, Cultured
chemical_list: D011994:Recombinant Proteins; D016178:Granulocyte-Macrophage Colony-Stimulating Factor