Kalkal Meenu, Das Jyoti
Parasite-Host Biology, National Institute of Malarial Research, Dwarka, New Delhi, India.
Front Microbiol. 2023 Jan 26;14:1046002. doi: 10.3389/fmicb.2023.1046002. eCollection 2023.
In the past several decades, our understanding of how B cells are generated and what function they perform has continued to advance. It is widely accepted that B-cell subsets play a critical role in mediating immune response. Surprisingly, human and murine malarial infections cause major alterations in the composition of B-cell subsets in both the spleen and periphery. Multiple B-cell subsets are well characterized in murine models following primary and secondary infection, although in human malarial infection, these subsets are not well defined. Furthermore, a rare known function of B cells includes the potential role of regulating the activities of other cells in the body as regulatory cells. infection strongly alters the frequency of these regulatory B cells indicating the immunoregulatory function of B cells in malarial. It is important to note that these subsets, taken together, form the cellular basis of humoral immune responses, allowing protection against a wide array of antigens to be achieved. However, it remains a challenge and an important area of investigation to understand how these B-cell subsets work together to provide protection against infection.
在过去几十年里,我们对B细胞如何产生以及发挥何种功能的理解不断深入。人们普遍认为,B细胞亚群在介导免疫反应中起关键作用。令人惊讶的是,人类和鼠类的疟疾感染会导致脾脏和外周血中B细胞亚群的组成发生重大改变。在初次和二次感染后的鼠类模型中,多个B细胞亚群已得到充分表征,尽管在人类疟疾感染中,这些亚群尚未明确界定。此外,B细胞一种鲜为人知的功能是作为调节细胞具有调节体内其他细胞活动的潜在作用。感染会强烈改变这些调节性B细胞的频率,这表明B细胞在疟疾中具有免疫调节功能。需要注意的是,这些亚群共同构成了体液免疫反应的细胞基础,从而实现对多种抗原的保护。然而,了解这些B细胞亚群如何协同作用以提供针对感染的保护仍然是一个挑战,也是一个重要的研究领域。