相关实验视频

Updated: Jul 18, 2025

Arbovirus Infections As Screening Tools for the Identification of Viral Immunomodulators and Host Antiviral Factors

Arbovirus Infections As Screening Tools for the Identification of Viral Immunomodulators and Host Antiviral Factors

Published on: September 13, 2018

利科哈尔孔A通过抑制RSV和保护宿主免受损伤,发挥双重抗病毒作用

Zhongyuan Li¹, Baohong Li², Zinuo Chen²

¹College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China.

Journal of medical virology

|August 28, 2023

概括

利科哈尔科恩A (LCA) 通过抑制病毒复制和减少炎症,在治疗呼吸道同胞细胞病毒 (RSV) 感染方面表现有前途. 这种天然化合物为RSV提供了潜在的新治疗途径,RSV是一种严重的呼吸道疾病.

科学领域:

病毒学病毒学
免疫学免疫学免疫学
药理学药理学是指药理学的学科.

背景情况:

呼吸道共囊病毒 (RSV) 是弱势群体下呼吸道感染和支气管炎的主要原因.
目前对RSV的治疗方法有限,这凸显了迫切需要有效的抗病毒疗法.
利科哈尔A (LCA) 是一种具有潜在治疗功能的天然化合物.

研究的目的:

为了研究利可卡尔A (LCA) 抗病毒功效对抗呼吸道共病毒 (RSV).
阐明LCA对RSV感染的保护作用的潜在机制.
评估LCA作为RSV治疗剂的潜力.

主要方法:

实验室研究评估LCA对RSV复制和细胞损伤的影响.
在感染小鼠的体内实验中,评估LCA对病毒标位和肺炎的影响.
涉及Nrf2转位,HO-1激活和氧化应激抑制的机制研究.
对NF-κB和TNF-α信号通路的分析,以了解LCA的抗炎作用.

主要成果:

在体外,LCA显著抑制了RSV复制,并减轻了RSV诱导的细胞损伤.
在RSV感染小鼠中,LCA降低了病毒标位和肺炎.
LCA激活了Nrf2/HO-1通路,抑制了反应性氧物种诱导的氧化应激.
LCA逆转了RSV诱导的IκBα降解,抑制了NF-κB和TNF-α信号传递.

结论:

利科哈尔科恩A对RSV具有显著的抗病毒和抗炎作用.
保护机制涉及抗氧化和抗炎途径的协同作用.
LCA代表了治疗RSV感染的有前途的新疗法候选者.

关键词:

利科哈尔科尼 A 型 Nrf2 激活方式肺炎肺炎肺炎肺炎氧化应激是一种氧化应激.呼吸道同胞性病毒

更多相关视频

Generation, Amplification, and Titration of Recombinant Respiratory Syncytial Viruses

Generation, Amplification, and Titration of Recombinant Respiratory Syncytial Viruses

Published on: April 4, 2019

Rescue of Recombinant Newcastle Disease Virus from cDNA

Rescue of Recombinant Newcastle Disease Virus from cDNA

Published on: October 11, 2013

相关概念视频

Immune Response Against Viral Pathogens

Immune Response Against Viral Pathogens

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...

Rous Sarcoma Virus (RSV) and Cancer

Rous Sarcoma Virus (RSV) and Cancer

Rous Sarcoma virus or RSV was discovered by F. Peyton Rous in the year 1911 as a filterable transmissible agent that could cause tumors in chickens. He won a Nobel Prize for this discovery in 1966. His experiments clearly demonstrated that some cancers could be caused by infectious agents and led to the discovery of many more cancer-causing viruses in animals as well as humans.
RSV is a retrovirus that contains two copies of a plus-strand RNA genome. Its genome consists of four main open...

Viruses with RNA Genomes

Viruses with RNA Genomes

RNA viruses are categorized into positive-strand, negative-strand, or double-stranded groups based on their genomic structure and replication mechanisms. This classification dictates how they exploit host cellular machinery for protein synthesis and replication. Some RNA viruses also utilize reverse transcription as part of their life cycle, further diversifying their replication strategies.Positive-Strand RNA VirusesPositive-strand RNA viruses have genomes that function directly as messenger...

Retrovirus Life Cycles

Retrovirus Life Cycles

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...

Mechanisms of Retrovirus-induced Cancers

Mechanisms of Retrovirus-induced Cancers

Retroviruses are RNA viruses that have been shown to cause cancers in diverse species, including chickens, mice, cats, and monkeys. The RNA genomes of these viruses are first reverse-transcribed into single and then double-stranded DNA (dsDNA) copies. This dsDNA called proviral DNA then integrates into the host genome. Subsequently, the host cell transcribes the proviral DNA in concert with the chromosomal DNA. This leads to the production of viral RNA and proteins that assemble at the host...

Retroviruses

Retroviruses

Retroviruses and retrotransposons both insert copies of their genetic elements into the genome of the host cell. Thus, the viral genes are passed on when the host genome is replicated or translated. A typical retroviral DNA sequence contains 3-4 genes that encode the different proteins required for its structural assembly and function as a molecular parasite. This DNA is transcribed into a single mRNA, which is very similar in structure to conventional mRNAs, i.e., it is capped at the 5’...