Immune Response to Polyomavirus Infection

多瘤病毒BK肾病是器官移植日益公认的并发症。它是 与严重的发病率相关&移植物丢失的风险为20%-50%。我们建议研究免疫力是如何 系统对BK病毒感染做出反应。我们建议的最终长期目标是生成数据，这 将帮助开发针对这种疾病的疫苗和免疫治疗方案。这项研究将有 以下是具体目标： (1)确定供受者的血清学状态对临床病程的影响 肝肾移植后BK病毒感染的风险。 (2)研究(A)健康人BK病毒感染中的抗BKV T辅助细胞(Th)应答。 受试者，(B)肾移植接受者，和(C)肝移植接受者 (3)研究健康受试者(A)肾脏对BK病毒的T细胞毒反应。 (C)肝移植接受者。 在研究过程中产生的信息将使BK病毒感染的早期诊断成为可能 感染，在晚期和潜在不可逆转的组织损伤之前。提出的研究还将促进 更好地了解引发和延续病毒性肾病的生物因素。这反过来又会 帮助我们更好地预测个别患者的临床病程，并帮助制定更有效的方案 各种形式的抗病毒治疗。

Polyomavirus BK nephropathy is an increasingly recognized complication of organ transplantation. It is associated with significant morbidity & 20-50% risk of graft loss. We propose to study how the immune system reacts to BK virus infection. The ultimate long-term goal of our proposal is to generate data, which will help in the development of vaccines & immunotherapy protocols against this disease. The study will have the following specific aims: (1) To determine the influence of donor and host recipient serologic status on the clinical course of BK virus infection after liver and kidney transplantation. (2) To characterize the anti-BKV T-helper (Th) response in BK virus infection in (a) healthy subjects, (b) kidney transplant recipients, and (c) liver transplant recipients (3) To characterize the T-cytotoxic cell response to BK virus in (a) healthy subjects, (b) kidney transplant recipients, and (c) liver transplant recipients. The information generated during the course of this study will permit earlier diagnosis of BK virus infection infection, prior to advanced and potentially irreversible tissue injury. The research proposed will also promote better understanding of the biologic factors that initiate and perpetuate viral nephropathy. This, in turn, will help us to better predict the clinical course of the disease in individual patients, and help devise more effective forms of anti-viral therapy.