NCT01232816

Role of T Helper 17 and Regulatory T Cells in Delayed Graft Function

Can T Helper 17 and Regulatory T Cells Explain the Pathophysiology of Delayed Graft Function in Renal Transplant Recipients?

• Status: Unknown
• Phase: —
• Study type: Observational
• Enrollment: 50 (estimated)
• Sponsor: McGill University Health Centre/Research Institute of the McGill University Health Centre · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

Delayed graft function (DGF) increases risk of acute rejection after kidney transplantation (KTx). Interleukin-6, which is produced in DGF, is critical in directing naive T helper cells differentiation towards T helper 17 (Th17) and away from regulatory T (Treg) cells. The investigators hypothesize there is an increase in Th17 and a decrease in Treg expression in KTx recipients with DGF compared to those without, leading to immunologic consequences. The investigators will test their hypothesis by measuring in both groups expression of Th17, Treg, and related cytokines in blood, urine, kidney biopsy, and kidney preservation fluid, and correlating these results with immunologic events.

Detailed description

All adult recipients of a primary kidney transplant will be eligible. Subjects will have blood samples drawn from which we will isolate lymphocytes and analyze the Treg population based on surface markers as well as a functional assay. The measures of Treg function will be compared to outcomes including DGF, graft survival and graft function, as well as the development of immunological complications such as donor-specific antibody production, acute rejection, IFTA and opportunistic infection.

Conditions

• Delayed Graft Function

Timeline

• Start date: 2010-07-01
• Primary completion: 2018-12-01
• Completion: 2019-12-01
• First posted: 2010-11-02
• Last updated: 2016-09-14

Locations

1 site across 1 country: Canada