从移植接受者与持久性病毒病症的BK多重瘤病毒基因组的时间依赖变化
Olga Mineeva-Sangwo1, Elisabet Van Loon2, Graciela Andrei3
1Laboratory of Virology and Chemotherapy, Rega Institute, Department of Microbiology, Immunology and Transplantation, KU Leuven, 3000, Leuven, Belgium.
Scientific reports
|August 19, 2023
概括
BK多病毒 (BKPyV) 突变在整个基因组中积累,包括VP1蛋白,可能会影响移植患者的中和逃脱. 这些病毒遗传变化对于理解和管理移植后的BKPyV感染至关重要.
科学领域:
- 病毒学 病毒学
- 免疫学 免疫学 免疫学
- 腎臟病學 (nephrology) 是一種醫學專業.
背景情况:
- 乙基多瘤病毒 (BKPyV) 在组织中建立潜伏感染.
- 再激活可以导致多病毒相关性病 (PVAN) 在移植接受者.
- 目前的PVAN治疗依赖于降低免疫抑制,冒着异种移植排斥的风险.
研究的目的:
- 研究移植受体中BKPyV基因组突变的发生和模式.
- 分析主要状蛋白VP1中的突变及其时间分布.
- 为未来BKPyV感染的治疗策略提供信息.
主要方法:
- 从32名脏移植接受者中进行了BKPyV的全基因组测序,这些接受者患有持续性病毒性病.
- 在移植后的不同时间点对病毒基因组序列的患者比较.
- 对氨基酸变化的分析,特别是在VP1蛋白中.
主要成果:
- 在整个BKPyV基因组中发现了突变,不仅限于VP1.
- 在移植后的早期和晚期样本中观察到氨基酸变化.
- VP1突变包括引入新的氨基酸和回归到保守形式.
结论:
- BKPyV基因组的进化是复杂的,在整个病毒基因组中发生突变.
- 了解这些突变,特别是在VP1中,对于管理中和逃逸至关重要.
- 这些发现应该指导在移植患者中开发BKPyV的新疗法.
相关概念视频
Kidney Transplant I: Introduction
29
A kidney transplant is a surgical approach that involves replacing a non-functioning kidney with a healthy one from a donor. This procedure is often a treatment option for end-stage renal disease (ESRD) patients. The method requires careful recipient selection, including evaluating various medical and psychosocial factors. These criteria vary between transplant centers but generally include assessments of the patient's overall health, adherence to medical recommendations, and lifestyle...
29
Acute Kidney Injury IV: Diagnostic Studies and Prevention
34
Accurate diagnosis and effective prevention are critical in managing Acute Kidney Injury (AKI), which is linked to high mortality rates ranging from 10% to 80%. Timely recognition of at-risk patients and careful monitoring can significantly reduce the likelihood of kidney damage.Diagnostic Assessments:The diagnostic process starts with a comprehensive medical history to identify prerenal, intrarenal, and postrenal causes.Prerenal causes, such as dehydration, hypotension, or blood loss, should...
34
Chronic Kidney Disease II: Clinical Manifestations
29
Chronic Kidney Disease (CKD) progressively impairs multiple body systems due to the accumulation of uremic toxins, which disrupt cellular functions across various organs.Neurologic symptomsNeurologic symptoms often arise early in CKD, as uremic toxin buildup drives changes in cognitive and motor functions. Patients frequently experience fatigue, headache, confusion, difficulty concentrating, and, in severe cases, seizures. Peripheral neuropathy commonly manifests as burning sensations in the...
29
Kidney Transplant II: Surgical Procedure
36
Preoperative ManagementThe primary goals of preoperative management in kidney transplantation are to optimize the patient’s metabolic state and prepare them for surgery through diet adjustments, necessary dialysis, and tailored medical treatment. This phase also involves comprehensive infection screening and patient education about the surgical procedure and postoperative care to improve outcomes and adherence.Medical ManagementA comprehensive evaluation is required for both the living...
36
Kidney Transplant III: Nursing Management
39
Postoperative Nursing Management for Kidney Transplant PatientsPostoperative nursing management care includes monitoring the surgical site, encouraging early movement, and promoting lung health through breathing exercises. Nurses also administer prescribed medications like H2-blockers, such as famotidine, or proton pump inhibitors, like omeprazole, to help prevent gastrointestinal ulcers and bleeding. Fungal infections in the mouth and bladder can result from immunosuppressive and antibiotic...
39
Viral Mutations
32.4K
A mutation is a change in the sequence of bases of DNA or RNA in a genome. Some mutations occur during replication of the genome due to errors made by the polymerase enzymes that replicate DNA or RNA. Unlike DNA polymerase, RNA polymerase is prone to errors because it is not capable of “proofreading” its work. Viruses with RNA-based genomes, like HIV, therefore accrue mutations faster than viruses with DNA-based genomes. Because mutation and recombination provide the raw material...
32.4K


