TY - JOUR
T1 - Viral Subversion of Nucleocytoplasmic Trafficking
AU - Yarbrough, Melanie L.
AU - Mata, Miguel A.
AU - Sakthivel, Ramanavelan
AU - Fontoura, Beatriz M.A.
PY - 2014/2
Y1 - 2014/2
N2 - Trafficking of proteins and RNA into and out of the nucleus occurs through the nuclear pore complex (NPC). Because of its critical function in many cellular processes, the NPC and transport factors are common targets of several viruses that disrupt key constituents of the machinery to facilitate viral replication. Many viruses such as poliovirus and severe acute respiratory syndrome (SARS) virus inhibit protein import into the nucleus, whereas viruses such as influenza A virus target and disrupt host mRNA nuclear export. Current evidence indicates that these viruses may employ such strategies to avert the host immune response. Conversely, many viruses co-opt nucleocytoplasmic trafficking to facilitate transport of viral RNAs. As viral proteins interact with key regulators of the host nuclear transport machinery, viruses have served as invaluable tools of discovery that led to the identification of novel constituents of nuclear transport pathways. This review explores the importance of nucleocytoplasmic trafficking to viral pathogenesis as these studies revealed new antiviral therapeutic strategies and exposed previously unknown cellular mechanisms. Further understanding of nuclear transport pathways will determine whether such therapeutics will be useful treatments for important human pathogens.
AB - Trafficking of proteins and RNA into and out of the nucleus occurs through the nuclear pore complex (NPC). Because of its critical function in many cellular processes, the NPC and transport factors are common targets of several viruses that disrupt key constituents of the machinery to facilitate viral replication. Many viruses such as poliovirus and severe acute respiratory syndrome (SARS) virus inhibit protein import into the nucleus, whereas viruses such as influenza A virus target and disrupt host mRNA nuclear export. Current evidence indicates that these viruses may employ such strategies to avert the host immune response. Conversely, many viruses co-opt nucleocytoplasmic trafficking to facilitate transport of viral RNAs. As viral proteins interact with key regulators of the host nuclear transport machinery, viruses have served as invaluable tools of discovery that led to the identification of novel constituents of nuclear transport pathways. This review explores the importance of nucleocytoplasmic trafficking to viral pathogenesis as these studies revealed new antiviral therapeutic strategies and exposed previously unknown cellular mechanisms. Further understanding of nuclear transport pathways will determine whether such therapeutics will be useful treatments for important human pathogens.
KW - MRNA export
KW - Nuclear import
KW - Nuclear pore complex
KW - Nuclear transport
KW - Nucleocytoplasmic trafficking
KW - Virus
UR - http://www.scopus.com/inward/record.url?scp=84892502706&partnerID=8YFLogxK
U2 - 10.1111/tra.12137
DO - 10.1111/tra.12137
M3 - Review article
C2 - 24289861
AN - SCOPUS:84892502706
VL - 15
SP - 127
EP - 140
JO - Traffic
JF - Traffic
SN - 1398-9219
IS - 2
ER -