Abstract:
:The presence of donor-derived hematopoietic cells in blood and various tissues of the organ recipients, termed allogeneic microchimerism, has been considered to play an essential role in establishment of organ acceptance. In this study, we prospectively determined the presence of peripheral blood microchimerism (PBM) in 20 male-to-female renal allograft recipients up to 30 months post-transplantation. Recipients were categorized according to the pattern of microchimerism into microchimeric and nonmicrochimeric groups, and then state of human leukocyte antigens (HLA) Class II (DR/DQ) matching, episodes of acute rejection, age at transplantation, renal function, and history of blood transfusion were compared. DNA was extracted from donor, pre-transplant, and post-transplant (1 wk; 1, 3, 6, 12, 18, 24, and 30 months) peripheral blood samples. We analyzed PBM using nested polymerase chain reaction (PCR) amplification specific for the SRY region of the Y chromosome with a sensitivity up to 1:1 000 000. Microchimerism was detected in 13 (65%) of 20 recipients at various intervals. The highest frequency of microchimerism was at 1 wk (55%). Among microchimeric recipients, none were positive on all post-transplant analyses. Interestingly, nonmicrochimeric cases were negative throughout the study. The three recipients with an episode of acute rejection during the first week after transplantation were all in the nonmicrochimeric group with completely mismatched HLA-DR antigens. HLA-DR incompatibility was significantly lower (t-test, p<0.05) in microchimeric cases (1.0+/-0.58) than in nonmicrochimeric ones (1.9+/-0.38). But regarding HLA-DQ and other clinical parameters mentioned above, significant difference was not observed. We propose that there is an association between HLA-DR matching, microchimerism and acute graft rejection in our recipients. Our study demonstrates that, with routine immunosuppressive protocols, higher compatibility of HLA-DR antigens facilitates microchimerism induction. Then, development of new stronger immunosuppressive protocols (including conditioning) or augmentation of chimeric state (by donor-specific bone marrow infusion), especially in completely mismatched HLA-DR renal allograft recipients, may be useful for graft acceptance.
journal_name
Clin Transplantjournal_title
Clinical transplantationauthors
Tajik N,Singal D,Pourmand G,Ebrahimi-Rad M,Radjabzadeh M,Tavasoli P,Khosravi F,Nikbin Bdoi
10.1034/j.1399-0012.2001.150308.xsubject
Has Abstractpub_date
2001-06-01 00:00:00pages
192-8issue
3eissn
0902-0063issn
1399-0012pii
ctr150308journal_volume
15pub_type
杂志文章abstract::We sought to determine the incidence, risk factors, and consequences of acute rejection (AR) after conversion from a calcineurin inhibitor (CNI) to a proliferation signal inhibitor (PSI) in maintenance heart transplantation. Relevant clinical data were retrospectively obtained for 284 long-term heart transplant recipi...
journal_title:Clinical transplantation
pub_type: 杂志文章,多中心研究
doi:10.1111/ctr.12241
更新日期:2013-11-01 00:00:00
abstract:BACKGROUND:Mycobacterium tuberculosis (TB) is a common pathogen worldwide, and it may cause significant infection after solid organ transplantation (SOT). We reviewed all reported TB cases to provide an update on its epidemiology, clinical presentation, management, and outcome after SOT. METHODS:MEDLINE, EMBASE, and O...
journal_title:Clinical transplantation
pub_type: 杂志文章,评审
doi:10.1111/ctr.13259
更新日期:2018-06-01 00:00:00
abstract::We analyzed the influence on allograft survival of pretransplant panel reactive antibodies (PRA) < 10%, PRA > 10%, autoantibodies, cold antibodies and a positive B cell crossmatch in 807 renal and 237 cardiac transplant recipients. Donors and recipients were predominantly of mixed ancestry (Khoi, San, Xhosa and Caucas...
journal_title:Clinical transplantation
pub_type: 杂志文章
doi:
更新日期:1997-04-01 00:00:00
abstract:BACKGROUND:Although innate immunity is crucial to host defense against pathogens, the extent to which innate immune mechanisms participate in the rejection of allogenic tissues in humans is unknown. We hypothesize that activation of innate immunity through Toll-like receptors (TLRs) critically regulates the development...
journal_title:Clinical transplantation
pub_type: 杂志文章
doi:10.1111/j.1399-0012.2005.00436.x
更新日期:2006-01-01 00:00:00
abstract::Tuberculosis remains one of the most serious infections after organ transplantation. Isoniazid prophylaxis for liver transplant recipients with a history of tuberculosis is generally recommended. However, its benefit is controversial because of potential hepatotoxicity of isoniazid. It is crucial to determine appropri...
journal_title:Clinical transplantation
pub_type: 杂志文章
doi:10.1111/j.1399-0012.2006.00630.x
更新日期:2007-03-01 00:00:00
abstract::Sirolimus is an immunosuppressive agent increasingly used in cardiac transplant recipients in the setting of allograft vasculopathy or worsening renal function. Recently, sirolimus has been associated with increased risk of venous thromboembolism (VTE) in lung transplant recipients. To investigate whether this associa...
journal_title:Clinical transplantation
pub_type: 临床试验,杂志文章
doi:10.1111/j.1399-0012.2012.01677.x
更新日期:2012-11-01 00:00:00
abstract::Simultaneous pancreas and kidney (SPK) and pancreas after kidney (PAK) transplant are both potential options for diabetic ESRD patients. Historically, PAK pancreas graft outcomes were felt to be inferior to SPK pancreas graft outcomes. Little is known about outcomes in the modern era of transplantation. We analyzed ou...
journal_title:Clinical transplantation
pub_type: 临床试验,杂志文章
doi:10.1111/ctr.13732
更新日期:2019-12-01 00:00:00
abstract::Criteria for organ acceptance in brain-dead organ donors remain inconsistent, especially when concerning pancreatic transplants. We sought to examine donor-specific predictors of pancreatic graft use and survival to better guide the selection and management of potential donors. A prospective observational study of all...
journal_title:Clinical transplantation
pub_type: 杂志文章
doi:10.1111/ctr.13571
更新日期:2019-06-01 00:00:00
abstract:BACKGROUND:Multidrug-resistant (MDR) gram-negative bacteria are a growing threat to solid organ transplantation (SOT) patients in the intensive care unit (ICU). We aimed to examine the mortality rates of gram-negative MDR bacterial infection in SOT patients compared with patient population undergoing other cardiothorac...
journal_title:Clinical transplantation
pub_type: 杂志文章
doi:10.1111/ctr.12575
更新日期:2015-09-01 00:00:00
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journal_title:Clinical transplantation
pub_type: 杂志文章
doi:10.1111/ctr.13303
更新日期:2018-07-01 00:00:00
abstract::To assess the prevalence and long-term impact of HCV on kidney transplant recipients, we assayed 716 pre-transplant sera using a first-generation ELISA. The anti-HCV positive sera were confirmed by a 6-antigen radioimmunoassay (RIA). Patients were followed up for 5 years. Graft survival, function, evidence of chemical...
journal_title:Clinical transplantation
pub_type: 杂志文章
doi:
更新日期:1995-04-01 00:00:00
abstract:BACKGROUND:There have been no published data on use of the the newer immunosuppressants tacrolimus and mycophenolate mofetil (MMF) in high immunological risk renal transplantation. We therefore undertook a prospective study to systematically assess outcomes using these agents as part of an aggressive immunosuppressive ...
journal_title:Clinical transplantation
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1111/j.1399-0012.2005.00275.x
更新日期:2005-02-01 00:00:00
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journal_title:Clinical transplantation
pub_type: 杂志文章
doi:10.1034/j.1399-0012.2003.00030.x
更新日期:2003-06-01 00:00:00
abstract::Skin cancer is a common, potentially life-threatening malignancy in organ transplant recipients (OTR), and it is important for transplant physicians to be aware of patient history of skin cancer. Patient self-report represents a quick method of obtaining past medical history of skin cancer but no study has validated t...
journal_title:Clinical transplantation
pub_type: 杂志文章
doi:10.1111/j.1399-0012.2012.01601.x
更新日期:2012-03-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to investigate the hypothesis that intraoperative infusion of dexmedetomidine can exert a protective effect against hepatic ischemia-reperfusion injury (IRI) in adult living donor liver transplantation (LDLiver transplantation). PATIENTS AND METHODS:Forty recipients were allocated i...
journal_title:Clinical transplantation
pub_type: 杂志文章,随机对照试验
doi:10.1111/ctr.12713
更新日期:2016-04-01 00:00:00
abstract::In a retrospective analysis of stable cadaveric renal transplant patients we identified 19 patients with high (> 270 mg/dl) and 12 patients with low (< 170 mg/dl) serum cholesterol levels. We found that patients with high cholesterol level had higher serum cyclosporine levels despite similar oral dose of cyclosporine,...
journal_title:Clinical transplantation
pub_type: 杂志文章
doi:
更新日期:1994-08-01 00:00:00
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journal_title:Clinical transplantation
pub_type: 杂志文章
doi:10.1034/j.1399-0012.2003.00053.x
更新日期:2003-08-01 00:00:00
abstract::Post-transplant lymphoproliferative disorder (PTLD) may compromise long-term outcome of lung transplant (LTx) recipients. A case-control study was performed, comparing LTx recipients with PTLD (n=31) to matched recipients without PTLD (Controls, n=62). Risk factors for PTLD and post-transplant outcomes were assessed. ...
journal_title:Clinical transplantation
pub_type: 杂志文章
doi:10.1111/ctr.12983
更新日期:2017-07-01 00:00:00
abstract::The benefits of HLA matching have been clearly demonstrated in renal and cardiac transplantation. Recent studies suggest that HLA matching may be associated with improved survival rates for transplantation as well. However, the effect of HLA matching for lung transplantation has not been clearly demonstrated. Despite ...
journal_title:Clinical transplantation
pub_type: 杂志文章
doi:
更新日期:1996-12-01 00:00:00
abstract:INTRODUCTION:Atherosclerosis is a serious complication and leading cause of mortality in renal transplant recipients (RTRs). Hyperlipidemia may be associated with progression of renal disease and chronic allograft dysfunction. Similarities in the pathogenesis of glomerulosclerosis and atherosclerosis have been proposed...
journal_title:Clinical transplantation
pub_type: 杂志文章
doi:10.1111/j.1399-0012.2004.00162.x
更新日期:2004-06-01 00:00:00
abstract:BACKGROUND:The survival of patients returning to hemodialysis (HD) following kidney transplant failure is unfavorable. However, the factors responsible for this poor outcome are largely unknown; chronic inflammation due to failed allograft and malnutrition may contribute to morbidity and mortality. We aimed to compare ...
journal_title:Clinical transplantation
pub_type: 杂志文章
doi:10.1111/j.1399-0012.2009.01097.x
更新日期:2010-07-01 00:00:00
abstract::Subclinical acute rejection (SAR) occurs in about 30% of stable renal transplant patients and may be a risk factor for a poor allograft outcome. In the present study, the prevalence and clinical features of subclinical rejection, and the expression of immune activation markers in surveillance graft biopsies were asses...
journal_title:Clinical transplantation
pub_type: 杂志文章
doi:10.1111/j.1399-0012.2004.00170.x
更新日期:2004-08-01 00:00:00
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journal_title:Clinical transplantation
pub_type: 临床试验,杂志文章
doi:10.1111/j.1399-0012.2010.01368.x
更新日期:2011-09-01 00:00:00
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journal_title:Clinical transplantation
pub_type: 杂志文章,评审
doi:10.1111/j.1399-0012.2008.00892.x
更新日期:2008-11-01 00:00:00
abstract:BACKGROUND:With the growing numbers of liver transplant recipients, it is increasingly important to understand the risks of de novo malignancy after liver transplantation. AIM:To characterize the incidence of de novo malignancy after liver transplantation compared with a control non-transplant population. METHODS:We ...
journal_title:Clinical transplantation
pub_type: 临床试验,杂志文章
doi:10.1111/ctr.12171
更新日期:2013-07-01 00:00:00
abstract::ABO-incompatibility is a major obstacle to expanding exiguous donor pools in adult liver transplantation, especially in countries where grafts from deceased donors are uncommon. We present our preliminary results of ABO-incompatible (ABO-I) adult living donor liver transplantation (LDLT) using a new, simple protocol. ...
journal_title:Clinical transplantation
pub_type: 杂志文章
doi:10.1111/ctr.12060
更新日期:2013-03-01 00:00:00
abstract::Hepatitis C virus (HCV) infection is highly prevalent in renal transplant candidates; however, its effect on the transplant outcome is still controversial. The aim of the present study was to determine the effect of HCV infection in the outcome of kidney transplantation in a single transplant center. The study populat...
journal_title:Clinical transplantation
pub_type: 杂志文章
doi:10.1111/j.1399-0012.2007.00679.x
更新日期:2008-01-01 00:00:00
abstract::Pancreas retransplantation has become more frequent and represents a technical challenge for surgeons. Knowledge of alternative surgical options could be useful in difficult cases. We present a case of brutal diabetes mellitus in a patient with severe vascular disease that underwent a third pancreas transplant. Diffic...
journal_title:Clinical transplantation
pub_type: 杂志文章
doi:10.1111/j.1399-0012.2009.01149.x
更新日期:2010-05-01 00:00:00
abstract::It is unclear whether a concomitant kidney transplant grants survival benefit to liver transplant (LT) candidates with renal dysfunction (RD). We retrospectively studied LT candidates without RD (n = 714) and LT candidates with RD who underwent either liver transplant alone (RD-LTA; n = 103) or simultaneous liver-kidn...
journal_title:Clinical transplantation
pub_type: 杂志文章
doi:10.1111/ctr.12479
更新日期:2015-01-01 00:00:00
abstract::In France, liver grafts which have been refused by at least five centers are proposed as rescue allocation (RA). The aim of this study is to clarify the feasibility and safety of RA grafts in liver transplantation (LT). Short- and long-term outcomes of patients who received RA grafts (RA group) were compared with thos...
journal_title:Clinical transplantation
pub_type: 杂志文章
doi:10.1111/ctr.14046
更新日期:2020-07-19 00:00:00