通过ESKAPE组细菌对NK细胞特性进行调制
Polina Grebenkina1,2, Varvara Juchina2, Elizaveta Tyshchuk1,2
1Saint-Petersburg Pasteur Institute, St. Petersburg 197101, Russia.
International journal of molecular sciences
|September 13, 2025
概括
细菌成分可以改变自然杀手 (NK) 细胞的功能,包括它们杀死其他细胞和基因表达的能力. 这项研究表明,细菌超级生物如何影响微环境中的NK细胞活动和通信.
科学领域:
- 免疫学 免疫学 免疫学
- 微生物学 微生物学
- 细胞生物学 细胞生物学
背景情况:
- 自然杀手 (NK) 细胞功能受到环境因素的影响.
- 细菌成分对NK细胞调节的具体影响尚未完全理解.
研究的目的:
- 调查细菌超级生物如何影响NK细胞细胞毒性,表型和基因表达.
- 探索托尔类受体 (TLRs) 在NK细胞细菌调制中的作用.
主要方法:
- NK 细胞与细菌超级生物共同培养.
- 流细胞测量以评估NK细胞表型和细胞毒性.
- 用RT-PCR测量特定基因 (例如NKG2A,IL-10) 的mRNA水平.
主要成果:
- NK细胞表达了托尔类受体2 (TLR2) 和托尔类受体5 (TLR5).
- 暴露于ESKAPE细菌的超级生物改变了NK细胞对JEG-3和K-562细胞系的细胞毒性.
- 细菌超级生物在NK细胞中改变了NKG2A和IL-10mRNA水平.
结论:
- 细菌可以显著改变NK细胞的功能.
- 细菌成分影响细胞微环境中的NK细胞相互作用.
相关概念视频
Cells of the Innate Immune Response
8.5K
The innate immune response is an immediate and non-specific response against pathogens, acting swiftly to prevent the spread of infections. The primary cells involved in this response are phagocytes and natural killer (NK) cells.
Phagocytes
Phagocytes police the peripheral tissues by removing cellular debris and responding to the invasion of foreign substances or pathogens. Many phagocytes attack and remove microorganisms even before lymphocytes detect them. The human body has two general...
Phagocytes
Phagocytes police the peripheral tissues by removing cellular debris and responding to the invasion of foreign substances or pathogens. Many phagocytes attack and remove microorganisms even before lymphocytes detect them. The human body has two general...
8.5K
Cytotoxic T Cells-mediated Immune Response
6.4K
Cytotoxic T cells are a vital component of the immune system. They have the remarkable ability to identify and target antigens on infected or abnormal cells. These antigens often originate from intracellular pathogens such as viruses or abnormal proteins cancer cells produce.
Immunological surveillance is the ability of immune cells to monitor and eliminate infected cells with intracellular pathogens, neoplastically transformed cells, and cells with non-self antigens. Cytotoxic T cells and NK...
Immunological surveillance is the ability of immune cells to monitor and eliminate infected cells with intracellular pathogens, neoplastically transformed cells, and cells with non-self antigens. Cytotoxic T cells and NK...
6.4K
Immune Surveillance by NK Cells and Phagocytes
7.7K
Immune surveillance is an integral part of the innate immune system, involving the continuous monitoring of peripheral tissues to detect and respond to pathogens, infected cells, or cancerous cells. This surveillance is conducted primarily by natural killer (NK) cells and phagocytes, which employ distinct but complementary mechanisms to identify and eliminate threats.
Natural Killer Cells: The Fast Responders
NK cells are large granular lymphocytes found in the blood and lymphatic system. These...
Natural Killer Cells: The Fast Responders
NK cells are large granular lymphocytes found in the blood and lymphatic system. These...
7.7K
NF-κB-dependent Signaling Pathway
9.7K
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...
NF-κB-dependent Signaling Mechanism
The...
9.7K


