Unknown

Dataset Information

0

PEBP balances apoptosis and autophagy in whitefly upon arbovirus infection.


ABSTRACT: Apoptosis and autophagy are two common forms of programmed cell death (PCD) used by host organisms to fight against virus infection. PCD in arthropod vectors can be manipulated by arboviruses, leading to arbovirus-vector coexistence, although the underlying mechanism is largely unknown. In this study, we find that coat protein (CP) of an insect-borne plant virus TYLCV directly interacts with a phosphatidylethanolamine-binding protein (PEBP) in its vector whitefly to downregulate MAPK signaling cascade. As a result, apoptosis is activated in the whitefly increasing viral load. Simultaneously, the PEBP4-CP interaction releases ATG8, a hallmark of autophagy initiation, which reduces arbovirus levels. Furthermore, apoptosis-promoted virus amplification is prevented by agonist-induced autophagy, whereas the autophagy-suppressed virus load is unaffected by manipulating apoptosis, suggesting that the viral load is predominantly determined by autophagy rather than by apoptosis. Our results demonstrate that a mild intracellular immune response including balanced apoptosis and autophagy might facilitate arbovirus preservation within its whitefly insect vector.

SUBMITTER: Wang S 

PROVIDER: S-EPMC8837789 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature

altmetric image

Publications

PEBP balances apoptosis and autophagy in whitefly upon arbovirus infection.

Wang Shifan S   Guo Huijuan H   Zhu-Salzman Keyan K   Ge Feng F   Sun Yucheng Y  

Nature communications 20220211 1


Apoptosis and autophagy are two common forms of programmed cell death (PCD) used by host organisms to fight against virus infection. PCD in arthropod vectors can be manipulated by arboviruses, leading to arbovirus-vector coexistence, although the underlying mechanism is largely unknown. In this study, we find that coat protein (CP) of an insect-borne plant virus TYLCV directly interacts with a phosphatidylethanolamine-binding protein (PEBP) in its vector whitefly to downregulate MAPK signaling c  ...[more]

Similar Datasets

| S-EPMC10262772 | biostudies-literature
| S-EPMC7259790 | biostudies-literature
| S-EPMC4364202 | biostudies-literature
| S-EPMC8824202 | biostudies-literature
| S-EPMC4042640 | biostudies-literature
| S-EPMC10312237 | biostudies-literature
| S-EPMC4053358 | biostudies-literature
| S-EPMC6299244 | biostudies-other
| S-EPMC9436821 | biostudies-literature
| S-EPMC9810027 | biostudies-literature