Autophagic degradation of lamins facilitates the nuclear egress of herpes simplex virus type 1.

ABSTRACT: Dendritic cells (DCs) are crucial for the induction of potent antiviral immune responses. In contrast to immature DCs (iDCs), mature DCs (mDCs) are not permissive for infection with herpes simplex virus type 1 (HSV-1). Here, we demonstrate that HSV-1 infection of iDCs and mDCs induces autophagy, which promotes the degradation of lamin A/C, B1, and B2 in iDCs only. This in turn facilitates the nuclear egress of progeny viral capsids and thus the formation of new infectious particles. In contrast, lamin protein levels remain stable in HSV-1-infected mDCs due to an inefficient autophagic flux. Elevated protein levels of KIF1B and KIF2A in mDCs inhibited lamin degradation, likely by hampering autophagosome-lysosome fusion. Therefore, in mDCs, fewer progeny capsids were released from the nuclei

SUBMITTER: Turan A 

PROVIDER: S-EPMC6363456 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature