Linked Life Data

1533654

Source:http://linkedlifedata.com/resource/pubmed/id/1533654

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
1992-6-9
pubmed:abstractText
Extracellular signal-regulated kinases (ERK) 1 and 2 are growth factor- and cytokine-sensitive serine/threonine kinases that are known to phosphorylate microtubule-associated protein 2 and myelin basic protein. The current studies examined whether ERK1 and/or ERK2 was present in T cells and whether they were phosphorylated and activated as a consequence of T cell activation. The data demonstrated that both ERK1 and ERK2 were present in Jurkat cells and peripheral blood T cells. In T cells, ERK2 was more prevalent than ERK1. The concentrations of ERK1 and ERK2 were not altered by stimulating the cells for 16 h with immobilized anti-CD3 mAb or anti-CD3 mAb and phorbol myristate acetate. mAb to CD3 and phorbol myristate acetate stimulated an increase in ERK1 and ERK2 MBP kinase activity. Anti-CD3 mAb triggered an increase their phosphate content which was detectable at 2 min but reached a maximum at 5 min. A portion of the increase in phosphate was caused by an increase in phosphotyrosine. We also examined the rate of ERK2 degradation. ERK2 was stable for up to 36 h, and its degradation was unaffected by the activation state of the cells. The data demonstrate that ERK1 and ERK2 are part of an anti-CD3 mAb-stimulated signal transduction cascade that is downstream of protein kinase C and, therefore, suggest that these kinases play an important role in T cell activation.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0022-1767
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
148
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
3230-7
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed-meshheading:1533654-Amino Acid Sequence, pubmed-meshheading:1533654-Antibodies, Monoclonal, pubmed-meshheading:1533654-Antigens, CD3, pubmed-meshheading:1533654-Antigens, Differentiation, T-Lymphocyte, pubmed-meshheading:1533654-Enzyme Activation, pubmed-meshheading:1533654-Humans, pubmed-meshheading:1533654-Mitogen-Activated Protein Kinase 1, pubmed-meshheading:1533654-Mitogen-Activated Protein Kinase 3, pubmed-meshheading:1533654-Mitogen-Activated Protein Kinases, pubmed-meshheading:1533654-Molecular Sequence Data, pubmed-meshheading:1533654-Phosphorylation, pubmed-meshheading:1533654-Protein Kinases, pubmed-meshheading:1533654-Receptors, Antigen, T-Cell, pubmed-meshheading:1533654-T-Lymphocytes, pubmed-meshheading:1533654-Tetradecanoylphorbol Acetate, pubmed-meshheading:1533654-Tyrosine
pubmed:year
1992
pubmed:articleTitle
Extracellular signal-regulated kinases in T cells. Anti-CD3 and 4 beta-phorbol 12-myristate 13-acetate-induced phosphorylation and activation.
pubmed:affiliation
Harold C. Simmons Arthritis Research Center, Department of Internal Medicine, University of Texas, Southwestern Medical Center, Dallas 75235-8884.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't