Preferred Label : Human Cytomegalovirus Infection Pathway;
NCIt related terms : Human Cytomegalovirus and Map Kinase Pathways;
Alternative definition : BIOCARTA: To replicate in host cell, viruses commandeer cellular signaling pathways.
Cytomegalovirus (CMV) is a DNA virus that is widespread in the population but usually
causes disease only in immunocompromised individuals and is also a viral cause of
birth defects. One of the actions of CMV in the host cell is to stimulate MAP kinase
pathways. Both p38 and ERK kinases are activated by CMV infection through activation
of map kinase kinases and inhibition of phosphatases. One result of Map kinase activation
by CMV is activation of transcription of viral genes, increasing the production of
viral gene products. Both p38 and ERK kinases contribute to the activation of viral
genes by cellular transcription factors acting through the viral UL4 promoter at upstream
and basal transcription elements. Another target of prolonged p38 activation during
infection is Rb, contributing to viral replication. Activation of MKK1 and MKK2 leads
to Erk1 and Erk2 activation, and phosphorylation of downstream targets. The MEKK1
kinase regulates the immediate early promoter indirectly through downstream kinase
signaling and perhaps more directly through activation of NF-kB. Map kinase pathways
activated by CMV converge on increased transcription of viral genes and increased
replication of the viral genome. Better understanding of the mechanisms involved in
the interaction of CMV with cellular signaling machinery will provide improved ways
to treat CMV-mediated disease. (This definition may be outdated - see the DesignNote.);
NCIt note : The BIOCARTA Definition (ALT_DEFINITION) for this pathway concept was provided by
BioCarta. This property was not created by, nor is it maintained by the NCI Thesaurus
staff. Additionally, BioCarta is no longer updating its pathway data; thus, the BIOCARTA
Definition might be outdated or inaccurate. Please see the Terms and Conditions for
Use at http://www.biocarta.com/.;
Biocarta ID : h_hcmvPathway;
Origin ID : C39101;
UMLS CUI : C1512507;
Semantic type(s)
has_gene_product_element
pathway_has_gene_element