慢性淋巴细胞白血病患者通过SARS-CoV-2mRNA疫苗接种暴露于渐进性免疫功能障碍:一个前性队列研究
Kai Qin1, Kazuhito Honjo1, Scott Sherrill-Mix2
1Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, United States of America.
PLoS medicine
|June 29, 2023
概括
慢性淋巴细胞白血病 (CLL) 患者对 SARS-CoV-2 mRNA 疫苗的抗体和 T 细胞反应受损. 在CLL患者中,Moderna mRNA-1273疫苗在产生中和抗体方面表现出比Pfizer-BioNTech BNT162b2更高的疗效.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 疫苗学 疫苗学 疫苗学
背景情况:
- 与健康个体相比,慢性淋巴细胞白血病 (CLL) 患者在SARS-CoV-2 mRNA接种疫苗后的血清转化率降低和抗体标位降低.
- 了解CLL免疫反应受损的机制对于优化疫苗接种策略至关重要.
研究的目的:
- 在患有CLL的患者中,剖析SARS-CoV-2mRNA疫苗接种后的幽默和细胞免疫反应.
- 在CLL患者中确定与疫苗诱导的免疫功能障碍相关的因素.
主要方法:
- 一项前性观察性研究涉及 SARS-CoV-2-naïve CLL 患者 (n=95) 和健康对照 (n=30) 接种了 Pfizer-BioNTech BNT162b2 或 Moderna mRNA-1273.3 的疫苗.
- 对抗尖峰和受体结合域抗体标位的评估,中和抗体对SARS-CoV-2变体的反应,以及T细胞反应 (IFNγ染色,多功能性).
主要成果:
- 与健康对照组相比,CLL患者的血清转化率和中位抗体和中和抗体标位显著降低.
- 诸如先进的Rai阶段,升高的β-2微球蛋白,先前的治疗和最近的抗CD20免疫疗法等因素预测中和抗体生成不良.
- 与Pfizer-BioNTech BNT162b2.2.2相比,Moderna mRNA-1273在CLL患者中引起了更高的中和抗体标位和响应率.
- 在CLL患者中,T细胞反应,包括细胞内IFNγ染色和CD4+T细胞中的效应器多功能性,都减少了.
结论:
- 这种类型的CLL的特征是逐渐丧失适应性免疫功能,影响疫苗反应.
- 与Pfizer-BioNTech BNT162b2疫苗相比,Moderna mRNA-1273疫苗在CLL患者中产生中和抗体方面似乎更有效.
- 在CLL患者中,保存的先前存在的记忆反应可能比产生对新型抗原的新反应的能力持久得多.
更多相关视频
06:03Author Spotlight: Advancing Immune Monitoring in Critical Care Patients Using Whole Blood Assays
Published on: September 20, 2024
1.3K
13:21Comprehensive DNA Methylation Analysis Using a Methyl-CpG-binding Domain Capture-based Method in Chronic Lymphocytic Leukemia Patients
Published on: June 16, 2017
10.1K
相关概念视频
Cancer Vaccines
428
Cancer treatment vaccines are a rapidly evolving field that offers a promising approach to immunotherapy. Unlike traditional vaccines that prevent diseases, cancer treatment vaccines are designed to treat existing cancers by stimulating the immune system to recognize and attack cancer cells.
Cancer vaccines come in two categories: preventive (prophylactic) and treatment (active). Preventive vaccines, such as the Human Papillomavirus (HPV) vaccine, protect against viruses that cause certain...
Cancer vaccines come in two categories: preventive (prophylactic) and treatment (active). Preventive vaccines, such as the Human Papillomavirus (HPV) vaccine, protect against viruses that cause certain...
428
Rous Sarcoma Virus (RSV) and Cancer
5.1K
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...
RSV is a retrovirus that contains two copies of a plus-strand RNA genome. Its genome consists of four main open...
5.1K
B Cell Activation and Differentiation
1.8K
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...
1.8K
Immunodeficiency Diseases
990
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...
There are three main causes of immunodeficiency...
990
