モノサイト分化中のHIV遺伝子発現の活性化は,NF-kappa B誘導による
G E Griffin1, K Leung, T M Folks
1Howard Hughes Medical Institute, University of Michigan Medical Center, Department of Internal Medicine, Ann Arbor 48109.
Nature
|May 4, 1989
まとめ
単細胞におけるヒト免疫不全ウイルス (HIV) の複製は,NF-kappa Bによって制御されます. この転写因子は,
科学分野:
- 免疫学 免疫学とは
- ウイルス学 ウイルス学 ウイルス学
- 分子生物学は分子生物学である.
背景:
- 既得免疫不全症候群 (AIDS) の潜伏期は,ヒト免疫不全ウイルス (HIV) の複製を活性化する要因に依存します.
- モノサイト細胞は,体内でのHIV生産のための潜在的な貯蔵庫ですが,HIV転写の規制は不明です.
研究 の 目的:
- 単細胞系統におけるHIV転写の調節を定義する.
- 単細胞におけるHIV遺伝子発現におけるNF-kappa Bの役割を調査する.
主な方法:
- モノサイト系細胞 (U937とU1細胞系) のHIV遺伝子発現を研究した.
- 単細胞の分化中のNF-カッパB結合活性を研究した. in vitro.
- 慢性的に感染したプロモノサイト細胞 (U1) でのHIV-1複製を評価した.
主要な成果:
- 単細胞におけるHIV遺伝子発現は,T細胞に似たNF-kappa Bによって調節される.
- NF-kappa B結合活動は,単細胞において発達的に調節され,分化中に現れ,成熟した細胞において構成的に存在します.
- U1細胞の微分化は,HIV-1複製とNF-カッパB結合活性の増加と相関しています.
結論:
- NF-kappa Bは,単細胞系におけるHIV転写の調節に重要な役割を果たしています.
- NF-kappa Bの発達調節は,単細胞におけるHIV活性化に寄与する.
- この規則を理解することで,HIVの潜伏期と複製を制御するための戦略を策定することができます.
関連する概念動画
Co-activators and Co-repressors
Gene transcription is regulated by the synergistic action of several proteins that form a complex at a gene regulatory site. This is observed in eukaryotes, where the regulation of gene expression is a complex process. Regulatory proteins in eukaryotes can broadly be classified into two types – regulators that bind directly to specific DNA sequences and co-regulators that associate with regulatory proteins but cannot directly bind to the DNA. These co-regulators are further divided into...
NF-κB-dependent Signaling Pathway
The transcription factor NF-κB was discovered in 1986 in the lab of Nobel laureate Professor David Baltimore, for its interaction with the immunoglobulin light chain enhancer in B-cells. After more than three decades of study, it is now evident that NF-κB regulates the expression of over 100 genes. Most of these genes play an essential role in the innate and adaptive immune responses as well as the inflammatory responses of animals.
NF-κB-dependent Signaling Mechanism
The heterodimer of NF-κB...
NF-κB-dependent Signaling Mechanism
The heterodimer of NF-κB...
NF-kB-dependent Signaling Pathway
The transcription factor NF-κB was discovered in 1986 in the lab of Nobel laureate Professor David Baltimore, for its interaction with the immunoglobulin light chain enhancer in B-cells. After more than three decades of study, it is now evident that NF-κB regulates the expression of over 100 genes. Most of these genes play an essential role in the innate and adaptive immune responses as well as the inflammatory responses of animals.
NF-κB-dependent Signaling Mechanism
The heterodimer of NF-κB...
NF-κB-dependent Signaling Mechanism
The heterodimer of NF-κB...
B Cell Activation and Differentiation
The adaptive immune response, a sophisticated defense mechanism, relies on the activation and differentiation of B lymphocytes, or B cells. These processes enable our bodies to mount a tailored response against specific pathogens such as bacteria, free virus particles, toxins, and parasites.
When naive B cells encounter a specific antigen that can bind to the B cell receptor (BCR) on their surface, they undergo sensitization to respond to the antigen's presence. Sensitization begins with...
When naive B cells encounter a specific antigen that can bind to the B cell receptor (BCR) on their surface, they undergo sensitization to respond to the antigen's presence. Sensitization begins with...


