Publication Date:
1986-04-25
Description:
Monocytes are a subpopulation of peripheral blood leukocytes, which when appropriately activated by the regulatory hormones of the immune system, are capable of becoming macrophages--potent effector cells for immune response to tumors and parasites. A complementary DNA for the T lymphocyte-derived lymphokine, granulocyte-macrophage colony-stimulating factor (GM-CSF), has been cloned, and recombinant GM-CSF protein has been expressed in yeast and purified to homogeneity. This purified human recombinant GM-CSF stimulated peripheral blood monocytes in vitro to become cytotoxic for the malignant melanoma cell line A375. Another T cell-derived lymphokine, gamma-interferon (IFN-gamma), also stimulated peripheral blood monocytes to become tumoricidal against this malignant cell line. When IFN-gamma activates monocytes to become tumoricidal, additional stimulation by exogenously added lipopolysaccharide is required. No such exogenous signals were required for the activation of monocytes by GM-CSF.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Grabstein, K H -- Urdal, D L -- Tushinski, R J -- Mochizuki, D Y -- Price, V L -- Cantrell, M A -- Gillis, S -- Conlon, P J -- New York, N.Y. -- Science. 1986 Apr 25;232(4749):506-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3083507" target="_blank"〉PubMed〈/a〉
Keywords:
Cell Line
;
Colony-Stimulating Factors/biosynthesis/*pharmacology
;
Cytotoxicity, Immunologic/*drug effects
;
Humans
;
Interferon-gamma/biosynthesis/pharmacology
;
Macrophages/*drug effects
;
Melanoma/immunology
;
Monocytes/drug effects
;
Neoplasms/*immunology
;
Recombinant Proteins/biosynthesis/pharmacology
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
Permalink