在孕前症中,在胎儿与母亲的接口处表达Properdin,这是补充替代途径的积极调节者
Hadida Yasmin1, Tamali Roy1, Chiara Agostinis2
1Department of Zoology, Cooch Behar Panchanan Barma University, Cooch Behar, India.
Frontiers in immunology
|February 20, 2026
概括
补充剂的关键调节剂properdin在孕前 (PE) 胎盘中升高,这表明它有助于胎盘损伤和妊娠并发症. 这一发现突出了properdin.
科学领域:
- 免疫学 免疫学 免疫学
- 生殖生物学 生殖生物学
- 病理学 病理学 病理学
背景情况:
- 异常的补充激活在胎儿与母亲的界面有助于妊娠并发症,如先兆子 (PE).
- 普罗珀丁通过稳定C3bBb复合体来积极调节补充替代途径.
研究的目的:
- 调查普罗珀丁在孕前症发病过程中的存在和作用.
- 检查PE中的胎盘组织和细胞外囊泡中的properdin表达.
主要方法:
- 定量逆转录PCR (RT-qPCR) 和西斑检测素,C3和C5转录和蛋白质水平.
- 免疫组织化学,传输电子显微镜 (TEM) 和免疫光学用于properdin定位.
- 对血清,胎盘同胞细胞微囊 (STBM) 和流通的胎盘外体的分析.
主要成果:
- 与健康对照人相比,Properdin,C3和C5在PE胎盘中的转录和蛋白质水平上显著上调.
- 相反,从PE患者的血清,STBM和循环的胎盘外体中,properdin水平较低.
- 免疫组织化学显示PE胎盘中的properdin增加,特别是在具有apoptotic核的syncytial节点.
结论:
- 普罗珀丁在PE胎盘上升调节,并与阿波托斯结合性结结相关.
- 普罗珀丁可能会导致补充介导的胎盘屏障损伤,加剧孕前的发展.
相关概念视频
Teratogenicity
4.2K
The ability of a drug to produce structural deformations and functional abnormalities in the developing embryo or the fetus is called teratogenicity, and the drug producing this effect is known as a teratogen. Teratogenic effects include stillbirth, miscarriage, intrauterine growth restriction, and neurocognitive delay. A teratogen may affect the embryo at different stages of development, which is important in determining the type and extent of the damage. During blastocyst formation, the early...
4.2K
Gonadal and Placental Hormones
3.8K
The gonads, namely the testes in males and the ovaries in females, are pivotal in producing gonadal hormones that orchestrate the intricate processes of sexual development and reproduction.
In males, testosterone is the primary gonadal androgen. It plays a central role in the maturation of male reproductive organs — the penis and testes. Additionally, testosterone is instrumental in the development of secondary sexual characteristics — a deep voice as well as facial and pubic hair...
In males, testosterone is the primary gonadal androgen. It plays a central role in the maturation of male reproductive organs — the penis and testes. Additionally, testosterone is instrumental in the development of secondary sexual characteristics — a deep voice as well as facial and pubic hair...
3.8K
Parentral Nutrition: Centeral and Peripheral Parental Nutrition
2.0K
Parenteral Nutrition (PN) delivers essential nutrients directly into the bloodstream, bypassing the digestive system. It is commonly used for individuals with severe digestive disorders or conditions that prevent normal nutrient absorption.
PN can be administered through two primary routes:
1. Central Parenteral Nutrition (CPN):
CPN involves delivering a high concentration of nutrients through a large vein. This is typically achieved using a Peripherally Inserted Central Catheter (PICC) or,...
PN can be administered through two primary routes:
1. Central Parenteral Nutrition (CPN):
CPN involves delivering a high concentration of nutrients through a large vein. This is typically achieved using a Peripherally Inserted Central Catheter (PICC) or,...
2.0K
Intrauterine Drug Delivery Systems
168
Controlled-release systems for intravaginal and intrauterine drug delivery have been developed primarily for the administration of contraceptive steroid hormones. These delivery routes circumvent first-pass hepatic metabolism, thereby enhancing bioavailability and allowing for reduced systemic dosages compared to oral administration. Such approaches contribute to improved therapeutic efficacy and patient compliance, particularly in long-term contraceptive regimens.Intravaginal Drug Delivery...
168
Pathophysiology of Diabetes
3.9K
Diabetes mellitus is a chronic metabolic disorder characterized by hyperglycemia. The four categories of diabetes are type 1 diabetes, type 2 diabetes, other specific types of diabetes, and gestational diabetes.
Type 1 diabetes is characterized by autoimmune-mediated destruction of pancreatic β cells, with environmental factors potentially triggering this process in genetically susceptible individuals. Despite many not having a family history, certain genes increase susceptibility,...
Type 1 diabetes is characterized by autoimmune-mediated destruction of pancreatic β cells, with environmental factors potentially triggering this process in genetically susceptible individuals. Despite many not having a family history, certain genes increase susceptibility,...
3.9K
Development of the Oral Microbiota
65
The establishment of the oral microbiome begins before birth, challenging the long-held belief that the fetal oral cavity is sterile. The presence of oral microbes such as Streptococcus and Fusobacterium in amniotic fluid suggests that microbial exposure may occur in utero, potentially through translocation from the maternal oral or gastrointestinal tract. This early colonization primes the neonatal immune system and sets the stage for subsequent microbial succession. Maternal health,...
65


