Renal Transplant Rejection
Conditions
Brief summary
Despite being a miracle of modern medicine, solid organ transplant recipients are always at risk of rejection, and remain dependent on lifelong immunosuppression. Currently used immunosuppressive drugs suppress the potential of immune system and interfere with the metabolism of medications. Cellular therapies currently being investigated for this purpose require the use of ablative radiotherapy. The investigators are using a less toxic strategy by harnessing the immunosuppressive potential of the MSCs in the Kidney Transplant (KTx) recipients and studying immunomodulation mediated by these cells in the KTx patients. Hypothesis MSCs interfere with signalling of Immune cells like T cells, B cells and Dendritic cells which leads to improve graft survival of renal transplant patients. Aim To investigate effect of MSCs on immune cell repertoire in a donor specific mediated response. The investigators aim to collect peripheral blood from 30 patients (10 patients for autologous cell infusion and 10 for allogeneic (donor derived cell infusion) at various time intervals following MSC therapy. 10 patients serve as controls on standard dose of drugs but without MSC infusion. This peripheral blood would be utilized for isolation of mononuclear cells and performing various immune assays on these cells in a donor specific response.
Detailed description
This is an open label type of study having 3 groups of patients: 1st group comprising of patients that would undergo allogeneic (donor-derived) mesenchymal stem cell infusion, 2nd group that would undergo autologous (patient-derived) mesenchymal stem cells and the third group (control group) without any stem cell infusion. All the three groups would have standard dose of Immunosuppressive drugs. Initially the investigators want to recruit 10 patients in each group and would increase the group size if the investigators get promising results on the follow up. The investigators plan to follow up the patients upto 1-2 years for immune based assays and then continue the follow up for atleast 5 years.
Interventions
BIOLOGICALMesenchymal Stem Cells
These Mesenchymal stem cells are derived from bone marrow of either renal transplant patients or their donors depending upon the group of study.
Sponsors
Post Graduate Institute of Medical Education and Research, Chandigarh
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
BASIC_SCIENCE
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
Yes
Inclusion criteria
* All the renal transplant recipients participating in the trial should undergo primary kidney transplant. * Donor should be living and related to the patient. * Kidney transplant recipients and donor should be willing to give informed consent form.
Exclusion criteria
* There should be no prior sensitization to the patients. * Patients should not be participating in any other study * Patients should not be suffering from any autoimmune disorders.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Expansion of regulatory T cell compartment of the patients undergoing renal transplant and infused with mesenchymal stem cells as compared to the control patients. | 6 months |
| Normalization of serum creatinine levels of the patients undergoing renal transplant and infused with mesenchymal stem cells as compared to the control patients. | 6 months |
Secondary
| Measure | Time frame |
|---|---|
| Changes in memory T cells in patients undergoing renal transplant and infused with mesenchymal stem cells as compared to the control patients. | 0day (one day before transpnatation), 30 days, 90days, 180 days, 1year, 2year post transplantation |
| T cell proliferation changes in patients undergoing renal transplant and infused with mesenchymal stem cells as compared to the control patients. | 0day (one day before transpnatation), 30 days, 90days, 180 days, 1year, 2year post transplantation |
| Changes in cytokine profile in patients undergoing renal transplant and infused with mesenchymal stem cells as compared to the control patients. | 0day (one day before transpnatation), 30 days, 90days, 180 days, 1year, 2year post transplantation |
| Changes in B cells in patients undergoing renal transplant and infused with mesenchymal stem cells as compared to the control patients. | 0day (one day before transpnatation), 30 days, 90days, 180 days, 1year, 2year post transplantation |
| Changes in regulatory T cells in patients undergoing renal transplant and infused with mesenchymal stem cells as compared to the control patients. | 0day (one day before transpnatation), 30 days, 90days, 180 days, 1year, 2year post transplantation |
Countries
India
Outcome results
None listed