相关实验视频

Updated: Jun 4, 2025

Chronic, Acute, and Reactivated HIV Infection in Humanized Immunodeficient Mouse Models

Chronic, Acute, and Reactivated HIV Infection in Humanized Immunodeficient Mouse Models

Published on: December 3, 2019

儿科艾滋病毒患者和未感染的对照患者的先天免疫细胞分布

Cynthia Oliveira Aquino¹, Fernanda Mariz Pereira¹, Ana Cristina Cisne Frota²

¹Universidade do Estado do Rio de Janeiro, Departamento de Microbiologia, Imunologia e Parasitologia, Rio de Janeiro, Rio de Janeiro, Brazil.

Revista do Instituto de Medicina Tropical de Sao Paulo

|December 19, 2024

概括

感染艾滋病毒的儿童表现出先天免疫细胞频率的改变,包括较低的单细胞和较高的自然杀手 (NK) 细胞. 这些变化可能会增加这一群体的感染易感性.

科学领域:

免疫学免疫学免疫学
传染性疾病传染性疾病
儿科儿科儿科

背景情况:

天生的免疫细胞在控制感染方面发挥着至关重要的作用.
了解艾滋病毒感染儿童 (CALHIV) 免疫细胞动态对于管理他们的健康至关重要.
艾滋病毒感染可以显著影响免疫细胞群.

研究的目的:

为了研究CALHIV中单细胞,骨髓原抑制细胞 (MDSC),自然杀手细胞 (NK) 和NKT细胞的频率,与未感染艾滋病毒 (HU) 的儿童相比.
探索这些先天性免疫细胞和CALHIV中的CD4 T细胞之间的相关性.

主要方法:

在一年内,从10名CALHIV和6名HU儿童收集了血液样本.
流细胞计用于免疫细胞群的表型特征.
进行统计分析以评估细胞频率和相关性.

主要成果:

与HU儿童 (62.60%) 相比,CALHIV的经典单细胞频率较低 (35.75%).
CALHIV显示CD56-CD16+NK细胞的频率较高 (1.45%) 与HU儿童 (0.44%) 相比.
单细胞-MDSC与CD56dimCD16+NK细胞,CD56-CD16+NK细胞和CALHIV中中间单细胞相反相关.

结论:

CALHIV在它们的先天免疫细胞区中表现出显著的变化.
这些免疫失调可能会导致CALHIV感染的易感性增加.
需要进一步的研究来了解这些发现的长期影响.

更多相关视频

Assessing the Innate Sensing of HIV-1 Infected CD4+ T Cells by Plasmacytoid Dendritic Cells Using an Ex vivo Co-culture System.

Assessing 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

Separation of Immune Cell Subpopulations in Peripheral Blood Samples from Children with Infectious Mononucleosis

Separation of Immune Cell Subpopulations in Peripheral Blood Samples from Children with Infectious Mononucleosis

Published on: September 7, 2022

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...

Immunodeficiency Diseases

Immunodeficiency Diseases

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...

Development of Immunocompetence

Development of Immunocompetence

The initiation of cell-mediated immunity can be observed as early as the third month of fetal growth, with active antibody-mediated immunity following approximately one month later.
The initial cells that migrate from the fetal thymus settle within the skin and epithelial tissues lining the mouth, digestive tract, and in females, the uterus and vagina. These cells, including skin-based dendritic cells, serve as antigen-presenting cells, playing a key role in T cell activation.
Subsequent T...

Cells of the Innate Immune Response

Cells of the Innate Immune Response

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...