C57BL/6小鼠的N和J亚株之间的遗传差异严重影响多种免疫反应及其微生物群
Andreas Hiergeist1, Sarah Miksch2, Nicole Sabouret1
1Institute of Clinical Microbiology and Hygiene, University Hospital Regensburg, Regensburg, Germany.
Immunological investigations
|June 26, 2025
概括
实验室小鼠菌株C57BL/6J和C57BL/6N显示出显著的免疫差异,影响关节炎,肺炎和结肠炎模型. 研究人员必须为可再生免疫学研究指定正确的小鼠菌株.
科学领域:
- 免疫学 免疫学 免疫学
- 遗传学 是一个遗传学.
- 微生物学 微生物学
背景情况:
- 常见的实验室小鼠菌株C57BL/6 (B6) 已经分化为B6J和B6N等子菌株.
- B6亚株之间的遗传差异影响生理学,生物化学和行为.
- B6J和B6N小鼠之间的免疫差异在很大程度上没有特征,但对于实验对照来说至关重要.
研究的目的:
- 研究和描述C57BL/6J和C57BL/6N小鼠菌株之间的免疫学差异.
- 评估B6亚菌株背景对各种免疫学模型和肠道微生物群的影响.
主要方法:
- 在抗体介导的免疫血栓缩 (ITP) 和B细胞枯竭模型中比较B6J和B6N小鼠.
- 在K/BxN关节炎,急性肺炎和硫酸 (DSS) 诱导的大肠炎模型中进行评估.
- 在健康和DSS治疗的B6J和B6N小鼠中分析肠道微生物群组成.
主要成果:
- 在ITP和B细胞枯竭模型中,B6J和B6N小鼠表现出类似的反应.
- 在关节炎,肺炎和DSS诱导的大肠炎模型中,在B6J和B6N小鼠之间观察到明显的差异.
- 在B6J和B6N小鼠之间检测到肠道微生物组合的显著差异,即使在健康的动物中也是如此,并且在DSS大肠炎期间被放大.
结论:
- 免疫反应和肠道微生物群在B6J和B6N小鼠菌株之间存在显著差异.
- 这些发现需要在免疫学研究中指定和匹配B6亚菌株.
- 精确的菌株选择对于确保可复制性和对研究结果的正确解释至关重要.
更多相关视频
05:28Analysis of Fecal Microbiota Dynamics in Lupus-Prone Mice Using a Simple, Cost-Effective DNA Isolation Method
Published on: May 2, 2022
2.3K
05:34Operating and Biocontainment Procedures of a Facility for Laboratory Mice with a Natural Microbiome: Immunophenotyping Procedure
Published on: December 13, 2024
750
相关概念视频
01:30Development of Human Microbiota
The human microbiota begins developing at birth and undergoes continual change as we age. Infancy marks a critical period of microbial sensitivity, offering a “window of opportunity” during which beneficial microbes help mature the immune system. By age three, children typically develop a more stable and diverse microbial community. Newborns acquire microbes from their immediate environment; vaginal delivery favors maternal vaginal microbes, while cesarean births favor microbes from the skin...
01:21Microbiota Modulation by Antibiotics
Antibiotics have revolutionized modern medicine by saving countless lives from bacterial infections. However, their widespread use has inadvertently harmed the delicate balance of the human gut microbiota. The gut microbiota, a complex community of bacteria, archaea, viruses, and fungi, plays a vital role in regulating metabolism, immune responses, and maintaining intestinal health. Antibiotics, especially broad-spectrum types, disrupt this ecosystem by eradicating both harmful and beneficial...
01:20Determinants of Bacterial Pathogenicity and Virulence
Pathogenic bacteria employ a variety of strategies to establish infections, including the secretion of extracellular enzymes that act as potent virulence factors. These enzymes facilitate bacterial colonization of host tissues and help evade immune surveillance. By targeting structural components of host tissues and interfering with immune mechanisms, these enzymes play a pivotal role in disease progression.Extracellular Enzymes Facilitating Tissue Invasion: Several bacterial pathogens secrete...