患有异常免疫表型的增殖T淋巴细胞在儿童期HLH的临床价值
Xiao-Xi Zhao1, Hong-Yun Lian2, Hong-Hao Ma2
1Department of Clinical Laboratory Center, Beijing Children's Hospital.
Journal of pediatric hematology/oncology
|January 21, 2026
概括
儿童期血细胞淋巴细胞炎 (HLH) 往往呈现出异常的T细胞免疫表型,特别是在与爱斯坦-巴尔病毒相关的HLH中. 这些T细胞变化与疾病严重程度相关,但与治疗结果无关.
科学领域:
- 儿科血液学 儿科血液学
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
背景情况:
- 血细胞淋巴细胞细胞瘤 (HLH) 是一种危及生命的超炎症综合征.
- 异常的T细胞免疫类型越来越多地被识别为HLH病原体.
- 了解这些T细胞变化对于诊断和管理至关重要.
研究的目的:
- 调查三个特定异常T细胞免疫类型在儿童期HLH中的分布.
- 确定这些免疫类型与HLH亚型的关联,疾病严重程度和治疗反应.
- 评估异常T细胞免疫类型的儿童中二次恶性瘤的长期结果和风险.
主要方法:
- 从2018年1月至2021年10月期间诊断的儿科HLH患者中回顾性收集异常T细胞免疫类型.
- 免疫类型的分类为CD38+HLA-DR+,克隆TCRVb表达或CD5下调.
- 统计分析以与HLH病因 (例如,EBV-HLH),IFN-γ水平,治疗反应和长期结果相关联免疫类型分布.
主要成果:
- 在189名HLH患者中的21.2%中发现了异常的T细胞免疫类型.
- CD5下调是最常见的模式 (70.0%),其次是克隆性TCRVb表达 (42.5%) 和CD38+HLA-DR+ (27.5%).
- 这些免疫类型与爱斯坦-巴尔病毒-HLH (EBV-HLH) 和更高的IFN-γ水平显著相关,但与治疗反应或长期结果无关. 没有观察到二次血液性恶性瘤.
结论:
- 异常的T细胞免疫类型在童年HLH中很常见,特别是在EBV-HLH中.
- 这些免疫表型变化与疾病严重程度和炎症标志物有关.
- 尽管与疾病特征有关,但异常的T细胞免疫类型不能预测儿科HLH的治疗反应或长期预后.
相关概念视频
Abnormal Proliferation
5.1K
Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the...
5.1K
Erikson's Theory on Socioemotional Development during Childhood
1.0K
Erik Erikson, a stage theorist, adapted Freud's theory to emphasize social factors in personality development throughout life, a concept known as psychosocial development. Unlike Freud, who focused on early childhood, Erikson believed that personality evolves across eight life stages, each marked by a specific challenge or "crisis." Successful resolution of each stage fosters competence, while failure may lead to feelings of inadequacy.
The first four of Erikson's eight...
The first four of Erikson's eight...
1.0K
Piaget's Theory of Cognitive Development from Childhood into Adulthood
1.5K
Jean Piaget's theory of cognitive development emphasizes the role of thinking in a child's learning process, suggesting that children are naturally curious about their environment. His approach to development is discontinuous, proposing that cognitive abilities progress through distinct stages, each with unique characteristics. Central to Piaget's theory is schemata—mental structures that allow individuals to understand and interpret the world.
Schemata: Building Blocks of Knowledge
Schemata: Building Blocks of Knowledge
1.5K
Cells Coordinate Growth and Proliferation
5.0K
Cell size is a significant factor impacting cellular design, function, and fitness. There exists some internal coordination by which cells double their masses before division, thus, achieving homeostasis. Coordination between cell growth and proliferation depends on the checkpoints in between cell cycle phases. Loss of coordination or failure in the checkpoint mechanism can drive the cell to uncontrolled growth and loss of cellular function. Like dividing cells that coordinate cellular growth,...
5.0K
Nursing Clinical Information System
1.2K
Nursing Clinical Information System (NCIS)
A Nursing Clinical Information System (NCIS) is a specialized type of healthcare information system tailored to meet the unique needs of nursing practice. It incorporates the principles of nursing informatics to streamline information management and improve the quality of care delivery.
Critical attributes of NCIS include:
A Nursing Clinical Information System (NCIS) is a specialized type of healthcare information system tailored to meet the unique needs of nursing practice. It incorporates the principles of nursing informatics to streamline information management and improve the quality of care delivery.
Critical attributes of NCIS include:
1.2K
Clinical Trials
10.2K
Clinical trials are prospective experimental studies conducted on humans to determine the safety and efficacy of treatments, drugs, diet methods, and medical devices. Using statistics in clinical trials enables researchers to derive reasonable and accurate conclusions from the collected data, allowing them to make wise decisions in uncertain situations. In medical research, statistical methods are crucial for preventing errors and bias.
There are four phases in a clinical trial. A phase one...
There are four phases in a clinical trial. A phase one...
10.2K


