The 24.5-kb Left Variable Region Is Not a Determinant for African Swine Fever Virus to Replicate in Primary Porcine Alveolar Macrophages

Bibliographic Details
Title: The 24.5-kb Left Variable Region Is Not a Determinant for African Swine Fever Virus to Replicate in Primary Porcine Alveolar Macrophages
Authors: Rui Luo, Tao Wang, Maowen Sun, Li Pan, Shujian Huang, Yun Sun, Hua-Ji Qiu
Source: Viruses, Vol 14, Iss 10, p 2119 (2022)
Publisher Information: MDPI AG, 2022.
Publication Year: 2022
Collection: LCC:Microbiology
Subject Terms: African swine fever virus, multigene family genes, left variable region, cell tropism, Microbiology, QR1-502
More Details: African swine fever (ASF) is a widespread hemorrhagic and highly contagious infectious disease caused by African swine fever virus (ASFV), currently threatening the pig industry worldwide. Here, we demonstrated that the cell-adapted strain ASFV-P121 with a 24.5-kb deletion in the left variable region (LVR) lost the ability to replicate in primary porcine alveolar macrophages (PAMs). To explore whether this deletion determines the inability of ASFV-P121 replication in PAMs, a mutant virus (ASFV-ΔLVR) with the same LVR deletion as ASFV-P121 was constructed based on the wild-type ASFV HLJ/18 (ASFV-WT). However, the growth titer of ASFV-ΔLVR only reduced 10-fold compared with ASFV-WT in PAMs. Furthermore, we found that the large deletion of the LVR does not affect the formation of virus factories and virion morphogenesis. These findings reveal important implications for analyzing the molecular mechanism of ASFV cell tropism change.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 1999-4915
Relation: https://www.mdpi.com/1999-4915/14/10/2119; https://doaj.org/toc/1999-4915
DOI: 10.3390/v14102119
Access URL: https://doaj.org/article/d6dcf36b4efb46bf9aa7b987f02c4e86
Accession Number: edsdoj.6dcf36b4efb46bf9aa7b987f02c4e86
Database: Directory of Open Access Journals
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More Details
ISSN:19994915
DOI:10.3390/v14102119
Published in:Viruses
Language:English