BACKGROUND: Induction therapy can improve kidney transplantation (KTx) outcomes, but little is known about the mechanisms underlying its effects. METHODS: The mRNA levels of T cell-related genes associated with tolerance or rejection (CD247, GZMB, PRF1, FOXP3, MAN1A1, TCAIM, and TLR5) and lymphocyte subpopulations were monitored prospectively in the peripheral blood of 60 kidney transplant recipients before and 7, 14, 21, 28, 60, 90 days, 6 months, and 12 months after KTx. Patients were treated with calcineurin inhibitor-based triple immunosuppression and induction with rabbit anti-thymocyte globulin (rATG, n = 24), basiliximab (n = 17), or without induction (no-induction, n = 19). A generalized linear mixed model with gamma distribution for repeated measures, adjusted for rejection, recipient/donor age and delayed graft function, was used for statistical analysis. RESULTS: rATG treatment caused an intense reduction in all T cell type population and natural killer (NK) cells within 7 days, then a slow increase and repopulation was observed. This was also noticed in the expression levels of CD247, FOXP3, GZMB, and PRF1. The basiliximab group exhibited higher CD247, GZMB, FOXP3 and TCAIM mRNA levels and regulatory T cell (Treg) counts than the no-induction group. The levels of MAN1A1 and TLR5 mRNA expressions were increased, whereas TCAIM decreased in the rATG group as compared with those in the no-induction group. CONCLUSION: The rATG induction therapy was associated with decreased T and NK cell-related transcript levels and with upregulation of two rejection-associated transcripts (MAN1A1 and TLR5) shortly after KTx. Basiliximab treatment was associated with increased absolute number of Treg cells, and increased level of FOXP3 and TCAIM expression.
- MeSH
- antigeny CD3 genetika MeSH
- antilymfocytární sérum terapeutické užití MeSH
- basiliximab MeSH
- dospělí MeSH
- exprese genu účinky léků MeSH
- forkhead transkripční faktory genetika MeSH
- granzymy genetika MeSH
- imunologická tolerance účinky léků genetika MeSH
- imunosupresiva terapeutické užití MeSH
- imunosupresivní léčba metody MeSH
- indukční chemoterapie metody MeSH
- inhibitory kalcineurinu terapeutické užití MeSH
- lidé středního věku MeSH
- lidé MeSH
- mannosidasy genetika MeSH
- messenger RNA krev MeSH
- mladý dospělý MeSH
- monoklonální protilátky terapeutické užití MeSH
- NKT buňky účinky léků imunologie MeSH
- perforin genetika MeSH
- počet lymfocytů MeSH
- prospektivní studie MeSH
- regulační T-lymfocyty účinky léků imunologie MeSH
- rejekce štěpu genetika imunologie prevence a kontrola MeSH
- rekombinantní fúzní proteiny terapeutické užití MeSH
- senioři MeSH
- transplantace ledvin metody MeSH
- Check Tag
- dospělí MeSH
- lidé středního věku MeSH
- lidé MeSH
- mladý dospělý MeSH
- mužské pohlaví MeSH
- senioři MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Názvy látek
- antigeny CD3 MeSH
- antilymfocytární sérum MeSH
- basiliximab MeSH
- CD3 antigen, zeta chain MeSH Prohlížeč
- forkhead transkripční faktory MeSH
- FOXP3 protein, human MeSH Prohlížeč
- granzymy MeSH
- GZMB protein, human MeSH Prohlížeč
- imunosupresiva MeSH
- inhibitory kalcineurinu MeSH
- mannosidasy MeSH
- mannosyl-oligosaccharide 1,2-alpha-mannosidase MeSH Prohlížeč
- messenger RNA MeSH
- monoklonální protilátky MeSH
- perforin MeSH
- PRF1 protein, human MeSH Prohlížeč
- rekombinantní fúzní proteiny MeSH
BACKGROUND: Regulatory T cells have been suggested to down-regulate the alloimmune response. The aim of this prospective open study was to evaluate the effects of different inductive agents on peripheral blood regulatory T cells in kidney transplant patients and to analyse their association with short-term graft outcome. METHODS: Regulatory and effector T cell numbers in peripheral blood were determined by flow cytometry in 71 prospectively followed kidney transplant recipients at postoperative day 0, 7, 14, 21, 28, 60 and 90. Patients were treated with a calcineurin inhibitor-based triple immunosuppression with polyclonal rabbit anti-thymocyte globulin (rATG, n = 28), basiliximab, the anti-CD25 monoclonal antibody (n = 18) or without induction (controls, n = 25). Flow cytometry data were correlated to rejection incidence. RESULTS: Compared to controls, CD4(+)CD25(+)FoxP3(+) regulatory T-cell expansion among CD4(+) T cells was noticed in the rATG group at all post-transplant time-points by Day 14 (P < 0.001). A significant decrease in Treg frequency (P < 0.001) and concurrently a transient increase of CD4(+)CD25(low/-)FoxP3(+) population were observed in basiliximab-treated patients 7-60 days post-transplantation. Biopsy-proven acute rejection occurred in 16.7% of controls, 10.7% of the rATG group and in 11.1% of the basiliximab group. Higher CD4(+)FoxP3(+)/CD8(+)CD45RA(+)CD62L(-) ratios were observed repeatedly in those patients after basiliximab induction who were rejection free (P < 0.01). CONCLUSIONS: In this study, the rATG induction therapy was associated with an expansion of regulatory cells. Sustained high CD4(+)FoxP3(+)/Teff ratios were associated with the absence of rejection after basiliximab induction.
- MeSH
- antilymfocytární sérum terapeutické užití MeSH
- basiliximab MeSH
- dospělí MeSH
- imunologická tolerance MeSH
- imunosupresiva terapeutické užití MeSH
- imunosupresivní léčba MeSH
- lidé středního věku MeSH
- lidé MeSH
- mladiství MeSH
- mladý dospělý MeSH
- monoklonální protilátky terapeutické užití MeSH
- následné studie MeSH
- prognóza MeSH
- prospektivní studie MeSH
- průtoková cytometrie MeSH
- receptor interleukinu-2 - alfa-podjednotka imunologie MeSH
- regulační T-lymfocyty účinky léků imunologie MeSH
- rejekce štěpu imunologie MeSH
- rekombinantní fúzní proteiny terapeutické užití MeSH
- senioři MeSH
- transplantace ledvin imunologie MeSH
- Check Tag
- dospělí MeSH
- lidé středního věku MeSH
- lidé MeSH
- mladiství MeSH
- mladý dospělý MeSH
- mužské pohlaví MeSH
- senioři MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Názvy látek
- antilymfocytární sérum MeSH
- basiliximab MeSH
- IL2RA protein, human MeSH Prohlížeč
- imunosupresiva MeSH
- monoklonální protilátky MeSH
- receptor interleukinu-2 - alfa-podjednotka MeSH
- rekombinantní fúzní proteiny MeSH
Renal transplantation represents a method of choice in irreversible renal failure. The outcome of renal transplantation is affected by acute or chronic rejection and long-term evaluation also suggest a role of adverse effects of immunosuppressive therapy, mainly the incidence of cardiovascular complications and tumours. Immunosuppressive therapy with biologic agents aims to reduce the incidence of acute rejections, prolong allograft survival and, consequently, patient survival. Apart from a reduction in acute rejection incidence, biological agents are used in a selected group of patients to eliminate the need for an adjunctive treatment with steroids and to reduce consequences of ischemic-reperfusion damage in older donors who suffer from a range ofco-morbidities. The most frequently used therapies include induction and anti-rejection therapy with a rabbit polyclonal anti-human thymocyte globulin (rATG) or an induction therapy with monoclonal anti-interleukin-2 receptor antibody (anti-IL2R), basiliximab. Considering the high immunosuppressive effect of rATG, adverse effects, mainly opportunistic infections and more frequent delayed tumourigenesis, have to be taken into account.
- MeSH
- abatacept MeSH
- antilymfocytární sérum terapeutické užití MeSH
- basiliximab MeSH
- imunokonjugáty terapeutické užití MeSH
- imunosupresiva terapeutické užití MeSH
- lidé MeSH
- monoklonální protilátky terapeutické užití MeSH
- myší monoklonální protilátky terapeutické užití MeSH
- rejekce štěpu prevence a kontrola MeSH
- rekombinantní fúzní proteiny terapeutické užití MeSH
- rituximab MeSH
- transplantace ledvin * MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- časopisecké články MeSH
- Názvy látek
- abatacept MeSH
- antilymfocytární sérum MeSH
- basiliximab MeSH
- imunokonjugáty MeSH
- imunosupresiva MeSH
- monoklonální protilátky MeSH
- myší monoklonální protilátky MeSH
- rekombinantní fúzní proteiny MeSH
- rituximab MeSH
BACKGROUND: The side effects associated with corticosteroids have led to efforts to minimize their use in renal transplant patients. In this study we compared two corticosteroid-free tacrolimus-based regimens with a standard triple therapy. METHODS: This was a 6-month, phase III, open-label, parallel-group, multicenter study. The total analysis set comprised 451 patients, randomized (1:1:1) to receive tacrolimus (Tac) monotherapy following basiliximab (Bas) administration (n=153), Tac/mycophenolate mofetil (MMF) (n=151), or, Tac/MMF/corticosteroids triple therapy as a control (n=147). RESULTS: The study was completed by 91.2% (triple therapy), 94.7% (Tac/MMF), and 82.4% (Bas/Tac) of patients. Patient baseline characteristics were similar in all groups. The incidences of biopsy-proven acute rejection were 8.2% (triple therapy), 30.5% (Tac/MMF), and 26.1% (Bas/Tac), p<0.001 (multiple test for comparison with triple therapy); Bas/Tac vs. Tac/MMF, p=ns. The incidences of corticosteroid-resistant acute rejection were 2.0%, 4.0%, and 5.2%, p=ns. Graft survival (95.9%, 96.7%, and 94.7%, p=ns) and patient survival (100%, 99.3%, and 99.3%, p=ns) were similar in all groups. Median serum creatinine at month 6 was 123.0 micromol/L (triple therapy), 134.7 micromol/L (Tac/MMF) and 135.8 micromol/L (Bas/Tac). The overall safety profiles were similar; differences (p<0.05) were reported for anaemia (24.5% vs. 12.6% vs. 14.5%), diarrhoea (12.9% vs. 17.9% vs. 5.9%), and leukopenia (7.5% vs. 18.5% vs. 5.9%) for the triple therapy, Tac/MMF, and Bas/Tac group, respectively. The incidences of new-onset diabetes mellitus were 4.6%, 7.1%, and 1.4%, respectively. CONCLUSION: Corticosteroid-free immunosuppression was feasible with the Bas/Tac and the Tac/MMF regimens. Both corticosteroid-free regimens were equally effective in preventing acute rejection, with the Bas/Tac therapy offering some safety benefits.
- MeSH
- analýza přežití MeSH
- basiliximab MeSH
- chronické selhání ledvin chirurgie MeSH
- dospělí MeSH
- hormony kůry nadledvin MeSH
- imunosupresiva terapeutické užití MeSH
- kombinovaná farmakoterapie MeSH
- kyselina mykofenolová analogy a deriváty terapeutické užití MeSH
- lidé středního věku MeSH
- lidé MeSH
- monoklonální protilátky terapeutické užití MeSH
- neúspěšná terapie MeSH
- rekombinantní fúzní proteiny terapeutické užití MeSH
- rozvrh dávkování léků MeSH
- senioři MeSH
- takrolimus aplikace a dávkování terapeutické užití MeSH
- transplantace ledvin imunologie mortalita MeSH
- výsledek terapie MeSH
- Check Tag
- dospělí MeSH
- lidé středního věku MeSH
- lidé MeSH
- senioři MeSH
- Publikační typ
- časopisecké články MeSH
- multicentrická studie MeSH
- práce podpořená grantem MeSH
- randomizované kontrolované studie MeSH
- srovnávací studie MeSH
- Názvy látek
- basiliximab MeSH
- hormony kůry nadledvin MeSH
- imunosupresiva MeSH
- kyselina mykofenolová MeSH
- monoklonální protilátky MeSH
- rekombinantní fúzní proteiny MeSH
- takrolimus MeSH
This was a multi-center, open-label, randomized, dose-comparative study on 202 renal transplantation patients. We evaluated for the first time an alternative dosing regimen for basiliximab, consisting of a single 40-mg intravenous dose on day 1 post-transplantation plus triple therapy, in comparison with the conventional two-dose regimen (2 h before transplantation and on day 4) plus triple therapy. At 6 months, the incidence of acute rejection was low: 22.5% of patients in the basiliximab 2 x 20-mg group and 20.0% of patients in the basiliximab 1 x 40-mg group experienced an acute rejection episode ( P = 0.628) (biopsy-proven rejection: 19.6% and 17.0%, P = 0.585). There was no statistically significant difference in any of the secondary efficacy parameters. The incidence of graft loss by 12 months was 4.9% and 6.0% in the 2 x 20-mg and 1 x 40-mg group, respectively ( P = 0.73). No differences were observed between the dosage groups with regards to safety assessments (adverse events (AEs), infections, vital signs, laboratory safety evaluations, and physical examinations). The data reveal that basiliximab can be safely and effectively administered as a single 40-mg dose on day 1 after renal transplantation as a therapeutic option to the established 2 x 20-mg dosing regimen. This alternative dosing regimen may be of significant convenience under circumstances when a first dose of basiliximab was not given prior to transplantation. Both regimens can conveniently be used during the initial hospitalization of the patient.
- MeSH
- akutní nemoc MeSH
- azathioprin aplikace a dávkování MeSH
- basiliximab MeSH
- cyklosporin aplikace a dávkování MeSH
- dospělí MeSH
- imunosupresiva aplikace a dávkování MeSH
- incidence MeSH
- kombinovaná farmakoterapie MeSH
- lidé středního věku MeSH
- lidé MeSH
- monoklonální protilátky aplikace a dávkování škodlivé účinky MeSH
- pooperační komplikace farmakoterapie epidemiologie MeSH
- rejekce štěpu farmakoterapie epidemiologie MeSH
- rekombinantní fúzní proteiny * MeSH
- transplantace ledvin * MeSH
- Check Tag
- dospělí MeSH
- lidé středního věku MeSH
- lidé MeSH
- mužské pohlaví MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- klinické zkoušky MeSH
- randomizované kontrolované studie MeSH
- Názvy látek
- azathioprin MeSH
- basiliximab MeSH
- cyklosporin MeSH
- imunosupresiva MeSH
- monoklonální protilátky MeSH
- rekombinantní fúzní proteiny * MeSH
- MeSH
- azathioprin terapeutické užití MeSH
- basiliximab MeSH
- bezpečnost MeSH
- časové faktory MeSH
- imunosupresivní léčba normy MeSH
- infekce epidemiologie MeSH
- kombinovaná farmakoterapie MeSH
- lidé středního věku MeSH
- lidé MeSH
- monoklonální protilátky terapeutické užití MeSH
- pooperační komplikace epidemiologie MeSH
- rejekce štěpu epidemiologie patologie prevence a kontrola MeSH
- rekombinantní fúzní proteiny * MeSH
- testování histokompatibility MeSH
- transplantace ledvin imunologie patologie MeSH
- Check Tag
- lidé středního věku MeSH
- lidé MeSH
- mužské pohlaví MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- klinické zkoušky MeSH
- práce podpořená grantem MeSH
- randomizované kontrolované studie MeSH
- Geografické názvy
- Brazílie MeSH
- Názvy látek
- azathioprin MeSH
- basiliximab MeSH
- monoklonální protilátky MeSH
- rekombinantní fúzní proteiny * MeSH