Stimulatory and inhibitory receptor interactions in xenotransplantation.

Abstract:

PURPOSE OF REVIEW:Cellular human antipig immune responses are increasingly recognized as an important barrier to successful clinical xenotransplantation. This review addresses the role of monocytes/macrophages, natural killer (NK) cells, and T cells in xenograft rejection. We focus on the receptor-ligand interactions that regulate the responses of these cells to porcine tissues and thus could be targets for immunomodulation. RECENT FINDINGS:Activation of human monocytes by pig cells is partly due to the incapacity of porcine ligands to bind to inhibitory receptors such as signal regulatory protein alpha. Porcine UL16-binding protein 1 can functionally interact with human NK group 2D protein, thereby contributing to human NK cell activity. Transgenic pigs overexpressing human leukocyte antigen class E were generated. Cells from these pigs induced diminished NK-cell lysis, suggesting that human leukocyte antigen class E expression compensates for the inability of porcine ligands to bind to the inhibitory CD94/NK group 2A receptor on human NK cells. A new concept for the modulation of antipig T-cell reactivity may result from the finding that porcine antigen-presenting cells that overexpress human negative costimulatory PD ligands also induce diminished responses of human T cells. SUMMARY:Disruption of stimulatory receptor-ligand interactions (e.g. by blocking antibodies or 'knockout/down' technologies) combined with transgenic overexpression of inhibitory ligands in porcine cells and tissues could be an effective approach to downregulate human antipig cellular immune responses.

authors

Plege A,Schwinzer R

doi

10.1097/MOT.0b013e328336b8e5

subject

Has Abstract

pub_date

2010-04-01 00:00:00

pages

219-23

issue

2

eissn

1087-2418

issn

1531-7013

journal_volume

15

pub_type

杂志文章,评审
  • Pulmonary hypertension in liver transplant.

    abstract:PURPOSE OF REVIEW:Pulmonary hypertension patients provide challenging issues to anesthesiology. The condition is more so when it is associated with liver transplant surgery. This situation is especially true when associated with portopulmonary hypertension (POPH), a subdivision of pulmonary hypertension. Understanding ...

    journal_title:Current opinion in organ transplantation

    pub_type: 杂志文章,评审

    doi:10.1097/MOT.0b013e328346e138

    authors: Ayoub T

    更新日期:2011-06-01 00:00:00

  • The lung microbiome and transplantation.

    abstract:PURPOSE OF REVIEW:Lung transplantation survival is still limited compared with other solid organ transplant modalities, due to a range of factors that are continuing to be elucidated. However, new research is emerging which indicates that the microbiome of the lungs, and of other organs, may have important implications...

    journal_title:Current opinion in organ transplantation

    pub_type: 杂志文章,评审

    doi:10.1097/MOT.0000000000000631

    authors: Mitchell AB

    更新日期:2019-06-01 00:00:00

  • Travel and transplantation: travel-related diseases in transplant recipients.

    abstract:PURPOSE OF REVIEW:Travel-related diseases may be seen in transplant recipients after travel, after transplant tourism, and via transmission from blood and organ donors, augmented by recent increases in travel, migration, and globalization. Such infections include tuberculosis, Plasmodium (malaria), Babesia, Trypanosoma...

    journal_title:Current opinion in organ transplantation

    pub_type: 杂志文章,评审

    doi:10.1097/MOT.0b013e328359266b

    authors: Kotton CN

    更新日期:2012-12-01 00:00:00

  • Orchestration of transplantation tolerance by regulatory dendritic cell therapy or in-situ targeting of dendritic cells.

    abstract:PURPOSE OF REVIEW:Extensive research in murine transplant models over the past two decades has convincingly demonstrated the ability of regulatory dendritic cells (DCregs) to promote long-term allograft survival. We review important considerations regarding the source of therapeutic DCregs (donor or recipient) and thei...

    journal_title:Current opinion in organ transplantation

    pub_type: 杂志文章,评审

    doi:10.1097/MOT.0000000000000097

    authors: Morelli AE,Thomson AW

    更新日期:2014-08-01 00:00:00

  • Preservation strategies to reduce ischemic injury in kidney transplantation: pharmacological and genetic approaches.

    abstract:PURPOSE OF REVIEW:In the current graft shortage, it is paramount to improve the quality of transplanted organs. Organ preservation represents an underused therapeutic window with great potential to reduce ischaemia-reperfusion injury (IRI) and improve graft quality. Herein, we review strategies using this window as wel...

    journal_title:Current opinion in organ transplantation

    pub_type: 杂志文章,评审

    doi:10.1097/MOT.0b013e3283446b1d

    authors: Chatauret N,Thuillier R,Hauet T

    更新日期:2011-04-01 00:00:00

  • The parallel paradigm between intestinal transplant inflammation and inflammatory bowel disease.

    abstract:PURPOSE OF REVIEW:A significant shift in our understanding of the molecular and cellular basis for inflammatory bowel disease (IBD) mirrors research that has been ongoing in intestinal transplantation. The blurring of lines between these two disease states creates an avenue into potential therapeutic interventions whic...

    journal_title:Current opinion in organ transplantation

    pub_type: 杂志文章,评审

    doi:10.1097/MOT.0000000000000615

    authors: Belyayev L,Loh K,Fishbein TM,Kroemer A

    更新日期:2019-04-01 00:00:00

  • Antibody-mediated rejection.

    abstract:PURPOSE OF REVIEW:Pulmonary antibody-mediated rejection (AMR) while contributing to acute and chronic allograft dysfunction remains a diagnostic and therapeutic challenge. The diagnostic tenets upon which AMR is defined will be reviewed in the light of recent studies. RECENT FINDINGS:The introduction of solid phase as...

    journal_title:Current opinion in organ transplantation

    pub_type: 杂志文章,评审

    doi:10.1097/MOT.0000000000000235

    authors: Westall GP,Paraskeva MA,Snell GI

    更新日期:2015-10-01 00:00:00

  • Repairing thymic function.

    abstract:PURPOSE OF REVIEW:Maintenance of T-cell function and modulation of tolerance are critical issues in organ transplantation. The thymus is the primary organ for T-cell generation, and a preserved thymic function is essential for a self-tolerant diverse T-cell repertoire. Transplant procedures and related immunosuppressiv...

    journal_title:Current opinion in organ transplantation

    pub_type: 杂志文章,评审

    doi:10.1097/MOT.0b013e3283615df9

    authors: Nunes-Cabaço H,Sousa AE

    更新日期:2013-06-01 00:00:00

  • Self-antigens and rejection: a proteomic analysis.

    abstract:PURPOSE OF REVIEW:Allo- and autoantibodies have been found to play important roles in both acute and chronic allograft rejection in organ transplantation, although only recently have non-human leukocyte antigen (non-HLA), nondonor-specific antibodies been given a more in-depth treatment. This review summarizes recent r...

    journal_title:Current opinion in organ transplantation

    pub_type: 杂志文章,评审

    doi:10.1097/MOT.0000000000000328

    authors: Yang JY,Sigdel TK,Sarwal MM

    更新日期:2016-08-01 00:00:00

  • Renal function in the long term after pediatric liver transplantation: is there a need for protocol kidney biopsies?

    abstract:PURPOSE OF REVIEW:With improving survival rates following solid organ transplantation, assessment of its success has broadened with a focus on long-term outcomes, including nongraft-related medical outcomes and family and patient perceptions of quality of life. Posttransplant renal dysfunction contributes to long-term ...

    journal_title:Current opinion in organ transplantation

    pub_type: 杂志文章,评审

    doi:10.1097/MOT.0b013e32833da439

    authors: Campbell KM,Bucuvalas JC

    更新日期:2010-10-01 00:00:00

  • Recent advances in the field of warm ex-vivo liver perfusion.

    abstract:PURPOSE OF REVIEW:Organ shortage remains a major obstacle for liver transplantation, resulting in an increased mortality on the liver transplant waiting list. The usage of extended criteria donors (ECD) is a strategy to increase the number of available donor organs, however, with the risk of a higher rate of posttransp...

    journal_title:Current opinion in organ transplantation

    pub_type: 杂志文章,评审

    doi:10.1097/MOT.0000000000000471

    authors: Kollmann D,Selzner M

    更新日期:2017-12-01 00:00:00

  • The global role of kidney transplantation.

    abstract::World Kidney Day on March 8th 2012 provides a chance to reflect on the success of kidney transplantation as a therapy for end-stage kidney disease that surpasses dialysis treatments both for the quality and quantity of life that it provides and for its cost-effectiveness. Anything that is both cheaper and better, but ...

    journal_title:Current opinion in organ transplantation

    pub_type: 社论

    doi:10.1097/MOT.0b013e328354c277

    authors: Garcia GG,Harden P,Chapman J,World Kidney Day Steering Committee 2012.

    更新日期:2012-08-01 00:00:00

  • Evolving aspects of liver transplantation for nonalcoholic steatohepatitis.

    abstract:PURPOSE OF REVIEW:Nonalcoholic steatohepatitis (NASH), obesity, and the metabolic syndrome are highly prevalent. NASH, a rare indication for liver transplantation in the early 1990s, is now the third most common indication. This review considers key aspects of the liver transplantation for NASH. RECENT FINDINGS:NASH i...

    journal_title:Current opinion in organ transplantation

    pub_type: 杂志文章,评审

    doi:10.1097/MOT.0b013e3283615d30

    authors: Charlton M

    更新日期:2013-06-01 00:00:00

  • Prevention and management of hyperglycemia after pancreas transplantation.

    abstract:PURPOSE OF REVIEW:Pancreas transplantation is considered the optimal therapy for patients with insulin-dependent diabetes. Successful pancreas transplantation achieves euglycemia and allows freedom from insulin therapy. Long-term allograft success may be limited by the development of impaired glucose metabolism. The ob...

    journal_title:Current opinion in organ transplantation

    pub_type: 杂志文章,评审

    doi:10.1097/MOT.0b013e3282f44a3e

    authors: Egidi MF,Lin A,Bratton CF,Baliga PK

    更新日期:2008-02-01 00:00:00

  • Immune monitoring in small bowel transplantation.

    abstract:PURPOSE OF REVIEW:Immune monitoring is needed in small bowel transplantation (SBTx) because of a high incidence of rejection and graft loss, and life-threatening complications of high-dose prophylactic immunosuppression. RECENT FINDINGS:Clinical tests relevant to SBTx include methods to detect antidonor human leukocyt...

    journal_title:Current opinion in organ transplantation

    pub_type: 杂志文章,评审

    doi:10.1097/MOT.0b013e328339489c

    authors: Sindhi R,AshokKumar C,Mazariegos G,Nayyar N,Ningappa M,Soltys K,Bond G,Sun Q,Humar A,Abu-Elmagd K,Zeevi A

    更新日期:2010-06-01 00:00:00

  • Rethinking clinical endpoints in kidney transplant trials.

    abstract:PURPOSE OF REVIEW:Clinical trials testing novel kidney transplant therapies are challenged by low rates of long-term clinical outcomes such as death and graft loss. Herein, we critically review traditional and more recent strategies to expedite new therapies by minimizing sample size and follow-up duration using surrog...

    journal_title:Current opinion in organ transplantation

    pub_type: 杂志文章,评审

    doi:10.1097/MOT.0000000000000719

    authors: Maggiore U,Leventhal J,Cravedi P

    更新日期:2020-02-01 00:00:00

  • The microbiome and its implications in intestinal transplantation.

    abstract:PURPOSE OF REVIEW:This article summarizes the complex interplay between the microbiota and host immune responses, and its impact on intestinal transplantation and allograft rejection. RECENT FINDINGS:Recent findings highlight the importance of Paneth cells as crucial producers of antimicrobial peptides that control th...

    journal_title:Current opinion in organ transplantation

    pub_type: 杂志文章,评审

    doi:10.1097/MOT.0000000000000278

    authors: Kroemer A,Elsabbagh AM,Matsumoto CS,Zasloff M,Fishbein TM

    更新日期:2016-04-01 00:00:00

  • Macrophages: contributors to allograft dysfunction, repair, or innocent bystanders?

    abstract:PURPOSE OF REVIEW:Macrophages are members of the innate immune response. However, their role in the adaptive immune response is not known. The purpose of this review is to highlight our current understanding of macrophage structure and function and how they may participate in allograft injury. RECENT FINDINGS:Studies ...

    journal_title:Current opinion in organ transplantation

    pub_type: 杂志文章,评审

    doi:10.1097/MOT.0b013e32834ee5b6

    authors: Mannon RB

    更新日期:2012-02-01 00:00:00

  • Critical issues related to porcine xenograft exposure to human viruses: lessons from allotransplantation.

    abstract:PURPOSE OF REVIEW:Xenotransplantation of tissues from swine into humans poses the threat of bidirectional transfer of porcine or human microorganisms to the recipient or to the xenograft, respectively. This review focuses on recipient-derived infection. Recent data are reviewed that assess the susceptibility of porcine...

    journal_title:Current opinion in organ transplantation

    pub_type: 杂志文章,评审

    doi:10.1097/MOT.0b013e328336b8f9

    authors: Millard AL,Mueller NJ

    更新日期:2010-04-01 00:00:00

  • Memory T cells and their exhaustive differentiation in allograft tolerance and rejection.

    abstract:PURPOSE OF REVIEW:Memory T cells have emerged as a major threat to transplant survival; they are well equipped and well positioned to respond to antigens in an accelerated fashion. They participate in transplant rejection and resist interventions that usually contain naïve T cells. Thus, the means to prevent memory T c...

    journal_title:Current opinion in organ transplantation

    pub_type: 杂志文章,评审

    doi:10.1097/MOT.0b013e32834ee443

    authors: Valujskikh A,Li XC

    更新日期:2012-02-01 00:00:00

  • Hepatitis C virus-HIV-coinfected patients and liver transplantation.

    abstract:PURPOSE OF REVIEW:To review the experience to date and unique challenges associated with liver transplantation in hepatitis C virus (HCV)/HIV-coinfected patients. RECENT FINDINGS:The prevalence of cirrhosis and hepatocellular carcinoma is rising among HIV-infected individuals. With careful patient selection and in the...

    journal_title:Current opinion in organ transplantation

    pub_type: 杂志文章,评审

    doi:10.1097/MOT.0000000000000199

    authors: Kardashian AA,Price JC

    更新日期:2015-06-01 00:00:00

  • The role of intraoperative hemodialysis in liver transplant patients.

    abstract:PURPOSE OF REVIEW:Orthotopic liver transplant (OLT) is a major surgical procedure that can be both challenging and lengthy. One of the common findings in end-stage liver disease is renal failure, whether acute or chronic, which may complicate the intraoperative course. RECENT FINDINGS:The use of intraoperative hemodia...

    journal_title:Current opinion in organ transplantation

    pub_type: 杂志文章,评审

    doi:10.1097/MOT.0b013e328346c8a2

    authors: Sedra AH,Strum E

    更新日期:2011-06-01 00:00:00

  • Measuring human leukocyte antigen alloantibodies: beyond a binary decision.

    abstract:PURPOSE OF REVIEW:Accurate measurement of human leukocyte antigen antibodies is critical for making clinical decisions treating patients awaiting transplantation or monitoring them post transplantation. Single antigen bead assay results are given as Mean Fluorescence Intensity, falling short of providing the required q...

    journal_title:Current opinion in organ transplantation

    pub_type: 杂志文章

    doi:10.1097/MOT.0000000000000822

    authors: Maguire CH,Schinstock CA,Tambur AR

    更新日期:2020-12-01 00:00:00

  • Lung re-transplantation: review.

    abstract:PURPOSE OF REVIEW:Re-transplantation of the lung has come of age. Here, we wish to review the recent literature on the topic and discuss clinical implications. RECENT FINDINGS:Many large volume transplant centres routinely perform lung re-transplantation with satisfactory outcomes. The main indication is bronchiolitis...

    journal_title:Current opinion in organ transplantation

    pub_type: 杂志文章,评审

    doi:10.1097/MOT.0b013e328357d8ba

    authors: Warnecke G,Haverich A

    更新日期:2012-10-01 00:00:00

  • Ethical dilemmas in psychiatric evaluations in patients with fulminant liver failure.

    abstract:PURPOSE OF REVIEW:Fulminant hepatic failure (FHF) is one of the more dramatic and challenging syndromes in clinical medicine. Time constraints and the scarcity of organs complicate the evaluation process in the case of patients presenting with FHF, raising ethical questions related to fairness and justice. The challeng...

    journal_title:Current opinion in organ transplantation

    pub_type: 杂志文章,评审

    doi:10.1097/MOT.0000000000000060

    authors: Appel J,Vaidya S

    更新日期:2014-04-01 00:00:00

  • Towards xenotransplantation of pig islets in the clinic.

    abstract:PURPOSE OF REVIEW:Porcine islet xenotransplantation into humans faces two major hurdles - safety issues related to xenosis and xenorejection of the transplants. The former has been overcome mainly by selection of a suitable disease-free source herd. RECENT FINDINGS:Four strategies have been employed to date to overcom...

    journal_title:Current opinion in organ transplantation

    pub_type: 杂志文章,评审

    doi:10.1097/MOT.0b013e3283449dec

    authors: Elliott RB,Living Cell Technologies.

    更新日期:2011-04-01 00:00:00

  • Liver xenotransplantation.

    abstract:PURPOSE OF REVIEW:There continues to be an inadequate organ supply and lack of effective temporary support, for patients with liver failure. The purpose of this review is to discuss recent progress in the field of orthotopic pig-to-nonhuman primate (NHP) liver xenotransplantation (LXT). RECENT FINDINGS:From 1968 to 20...

    journal_title:Current opinion in organ transplantation

    pub_type: 杂志文章,评审

    doi:10.1097/MOT.0000000000000459

    authors: Patel MS,Louras N,Vagefi PA

    更新日期:2017-12-01 00:00:00

  • Donation after circulatory death: the current state and technical approaches to organ procurement.

    abstract:PURPOSE OF REVIEW:In this review, we discuss the current state of donation after circulatory death (DCD). We define the DCD donor and describe the current protocols in management of the DCD patient. We then discuss current techniques in organ procurement of the lung and abdominal organs. RECENT FINDINGS:Although donat...

    journal_title:Current opinion in organ transplantation

    pub_type: 杂志文章,评审

    doi:10.1097/MOT.0000000000000179

    authors: Algahim MF,Love RB

    更新日期:2015-04-01 00:00:00

  • The coagulation barrier in xenotransplantation: incompatibilities and strategies to overcome them.

    abstract:PURPOSE OF REVIEW:Dysregulated coagulation is now recognized as a major contributor to graft loss in xenotransplantation. This review summarizes recent data on putative mechanisms of pathogenic coagulation in xenotransplantation and discusses progress on strategies to overcome them. RECENT FINDINGS:Evidence continues ...

    journal_title:Current opinion in organ transplantation

    pub_type: 杂志文章,评审

    doi:10.1097/MOT.0b013e3282f63c74

    authors: Cowan PJ,d'Apice AJ

    更新日期:2008-04-01 00:00:00

  • Evaluation and selection of the liver transplant candidate: updates on a dynamic and evolving process.

    abstract:PURPOSE OF REVIEW:Although conceptually unchanged, the evaluation and selection of the liver transplant candidate has seen significant recent advances. Expanding criteria for transplant candidacy, improved diagnostics for risk stratification and advances in prognostic models have paralleled recent changes in allocation...

    journal_title:Current opinion in organ transplantation

    pub_type: 杂志文章

    doi:10.1097/MOT.0000000000000829

    authors: Kriss M,Biggins SW

    更新日期:2021-02-01 00:00:00