在细胞-细胞感染下,HIV-1和BLV对SERINC5的限制不敏感
Changqing Yu1,2, Faming Jiang1, Yujing Li1
1Engineering Center of Agricultural Biosafety Assessment and Biotechnology, School of Advanced Agricultural Sciences, Yibin Vocational and Technical College, Yibin, China.
Microbiology spectrum
|January 27, 2025
概括
胺结合剂5 (SER5) 有效地抑制无细胞病毒感染,但对HIV-1和BLV的细胞间传播失去了其效力. 病毒可能会利用细胞间传播来逃避SER5的限制.
科学领域:
- 病毒学 病毒学
- 细胞生物学 细胞生物学
- 免疫学 免疫学 免疫学
背景情况:
- 众所周知,氨酸结合剂5 (SER5) 能够抑制病毒无细胞感染.
- 在病毒细胞-细胞传播过程中SER5的抗病毒活性仍然在很大程度上未经检查.
研究的目的:
- 调查SER5在限制细胞-细胞感染期间的人类免疫缺陷病毒1型 (HIV-1) 和牛白血病病毒 (BLV) 的有效性.
- 确定病毒是否利用细胞间传播作为规避SER5限制的机制.
主要方法:
- 在实验室中建立HIV-1和BLV的细胞-细胞感染系统.
- 评估SER5的抗病毒活性使用哺乳动物SER5从智人,牛头和猫.
- 埃博拉病毒糖蛋白介导的伪病毒无细胞感染的评估.
主要成果:
- 来自各种哺乳动物物种的SER5显著抑制了HIV-1无细胞感染,但未能限制HIV-1细胞-细胞感染.
- 埃博拉病毒糖蛋白介导的伪病毒感染被智人和牛SER5.5增强.
- 在细胞-细胞感染模型中,BLV对SER5限制不敏感,即使在信封糖蛋白中存在变异.
结论:
- 在细胞-细胞感染期间,SER5对HIV-1和BLV无效.
- 像HIV-1和BLV这样的病毒可能会利用细胞传播来规避SER5在体外施加的限制.
- 这种逃避策略可以促进病毒在体内传播.
更多相关视频
13:13Single-cell Quantitation of mRNA and Surface Protein Expression in Simian Immunodeficiency Virus-infected CD4+ T Cells Isolated from Rhesus macaques
Published on: September 25, 2018
10.6K
08:11Assessing the Innate Sensing of HIV-1 Infected CD4+ T Cells by Plasmacytoid Dendritic Cells Using an Ex vivo Co-culture System.
Published on: September 1, 2015
8.7K
相关概念视频
Immunodeficiency Diseases
897
Immunodeficiency disorders are conditions in which the immune system's ability to fight infectious disease and cancer is compromised or entirely absent. The immune system comprises a complex network of cells, tissues, and organs that work together to protect the body from potentially harmful invaders. When this system is deficient or not functioning properly, it leaves the body susceptible to infections, diseases, or other complications.
There are three main causes of immunodeficiency...
There are three main causes of immunodeficiency...
897
Retrovirus Life Cycles
45.6K
Retroviruses have a single-stranded RNA genome that undergoes a special form of replication. Once the retrovirus has entered the host cell, an enzyme called reverse transcriptase synthesizes double-stranded DNA from the retroviral RNA genome. This DNA copy of the genome is then integrated into the host’s genome inside the nucleus via an enzyme called integrase. Consequently, the retroviral genome is transcribed into RNA whenever the host’s genome is transcribed, allowing the...
45.6K
Immune Response Against Viral Pathogens
732
The immune system's response to viral infections is a complex and coordinated process involving natural killer (NK) cells, T cell-mediated responses, and antibody-mediated responses.
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
732
