Articles tagged "Genomics"

2017 American Transplant Congress
Differential Effects of Immunosuppressive Drugs on DNA Methylation in T Cells.
F. Peters,¹ A. Peeters,¹ L. Hofland,² M. Betjes,¹ K. Boer,¹ C. Baan.¹
¹Nephrology and Transplantation, Internal Medicine, Erasmus MC, University Medical Center, Rotterdam, Netherlands; ²Endocrinology, Internal Medicine, Erasmus MC, University Medical Center, Rotterdam, Netherlands
Introduction The immune response after transplantation can be affected by DNA methylation – an epigenetic modification that regulates gene expression, including that of immune-related genes.…
2016 American Transplant Congress
RNAseq Transcriptome Analysis of Bone Marrow CD138⁺ Plasma Cell Responses to Carfilzomib Monotherapy Desensitization.
J. Driscoll, B. Aronow, S. Tremblay, R. Alloway, E. Woodle.
Medicine, Surgery, Biomedical Informatics, U of Cincinnati, Cincinnati Children's, Cincinnati, OH.
Purpose: Prior studies indicate that bone marrow resident plasma cells (BMRPCs) demonstrate varying sensitivity to proteasome inhibition (PI). Effects of carfilzomib (CFZ) monotherapy desensitization on…
2016 American Transplant Congress
Effect of Angiotensin Converting Enzyme Inhibitor (ACEI) or Angiotensin Receptor Blockade (ARB) Exposure on Intragraft Gene Expression of Kidney Transplant Patients.
C. Suarez-Fuentes,^1,2,4 P. O Broin,³ Y. Bao,¹ E. Akalin.^1,2
¹Kidney Transplant, Montefiore Medical Center, Bronx, NY; ²Albert Einstein College of Medicine, Bronx, NY; ³National University of Ireland Galway University, Galway, Ireland; ⁴Funded by NIH T-32 DK007110, National Institute of Health, Bethesda, MD.
Objective: Treatment with ACEI or ARB has been shown to have anti-inflammatory effects in animal models but this effect has not been investigated in kidney…
2016 American Transplant Congress
HLA Identical Renal Transplant Tolerance Using Donor Hematopoietic Stems Cells (DHSC): Role of Immunoregulation.
J. Leventhal,¹ J. Mathew,¹ D. Salomon,² S. Kurian,² J. Friedewald,¹ L. Gallon,¹ X. Huang,¹ A. Tambur,¹ Y. Kanwar,¹ J. Charette,¹ M. Abecassis,¹ J. Miller.¹
¹Surgery - Comprehensive Transplant Center, Northwestern University, Chicago, IL; ²The Scripps Research Institute, La Jolla, CA.
Purpose: Despite being a “perfect match”, HLA-identical kidney transplants (HLA-Id KTx) are rejected without sufficient immunosuppression (IS), and hence can also benefit from tolerance induction.…
2016 American Transplant Congress
A Molecular Biopsy Test for Probability of Non-Adherence.
P. Halloran,^1,3 G. Einecke,² J. Reeve.¹
¹ATAGC, Edmonton, AB, Canada; ²Hannover Medical School, Hannover, Germany; ³Department of Medicine, University of Alberta, Edmonton, AB, Canada.
Afferent arteriolar hyalinosis (ah-score) in renal transplant biopsies increases with time of biopsy-post-transplant (TxBx), reflecting calcineurin inhibitor drug effects, donor aging, and progressive glomerular diseases.…
2016 American Transplant Congress
Early Post Renal Transplant aHUS in Patients with Heterozygous CFHR3-CFHR1 Deletion.
S. Rhazouani, A. Malone, T. Alhamad, T. Maw, D. Brennan, R. Delos Santos.
Renal Division, Washington University, Saint Louis, MO.
Background: Atypical hemolytic uremic syndrome (aHUS) is a rare disease with a triad of microangiopathic hemolytic anemia, thrombocytopenia, and acute renal failure. Subjects homozygous for…
2016 American Transplant Congress
Molecular Assessment of Kidney Transplant Biopsies Performs Similarly in Medulla and Cortex.
K. Madill-Thomsen,¹ J. Reeve,¹ G. Bohmig,² F. Eskandary,² P. Halloran.^1,3
¹Alberta Transplant Applied Genomics Center, Edmonton, AB, Canada; ²Department of Nephrology and Dialysis, Medical University of Vienna, Vienna, Austria; ³Department of Medicine, Division of Nephrology and Transplant Immunology, University of Alberta, Edmonton, AB, Canada.
Histologic assessment of kidney biopsies is usually unable to interpret medulla, but molecular changes associated with rejection likely occur in both medulla and cortex. Analysis…
2016 American Transplant Congress
VDJ Immune Repertoire Sequencing Predicts Patients at Risk of Alloimmune Injury.
M. Sirota,¹ T. Sigdel,¹ S. Boyd,² A. Fire,² M. Sarwal.¹
¹Surgery and Bioinformatics, UCSF, San Francisco, CA; ²Genetics, Stanford University, Palo Alto, CA.
Background: The complex repertoire of immune receptors generated by B cells enables allo-recognition in the context of transplantation across HLA barriers, and is a major…
2016 American Transplant Congress
Analysis of T Cell Receptor Repertoire in Routine Renal Allograft Biopsy.
R. Reindl-Schwaighofer,¹ J. Weinberger,¹ R. Jimenez-Heredia,¹ J. Sunzenauer,¹ S. Schaller,² S. Winkler,² R. Oberbauer.¹
¹Department of Nephrology, Medical University of Vienna, Vienna, Austria; ²Bioinformatics Research Group, University of Applied Sciences Upper Austria, Hagenberg, Austria.
Introduction: Diversity and clonality of the T cell repertoire of circulating and tissue-resident T-cells can be assessed by sequencing of recombined T cell receptor (TCR)…
2016 American Transplant Congress
Exome Sequencing and HLA-Independent Prediction of Long-Term Kidney Allograft Function.
L. Mesnard,^1,3,6 T. Muthukumar,^2,9 M. Burbach,² C. Li,² H. Shang,⁴ D. Dadhania,^2,3 J. Lee,^2,3 V. Sharma,² J. Xiang,⁴ M. Carmagnat,⁵ C. Suberbielle,⁵ N. Ouali,⁶ E. Rondeau,^6,1 J. Friedewald,⁸ M. Abecassis,⁷ M. Suthanthiran,^2,9 F. Campagne.³
¹UMR1155, INSERM, Paris, France; ²Division of Nephrology and Hypertension, New York Presbyterian Hospital, New York; ³Department of Physiology and Biophysics, The HRH Prince Alwaleed Bin Talal Bin Abdulaziz Alsaud Institute for Computational Biomedicine, New York, NY; ⁴Genomics Core Facility, Weill Cornell Medical College, New York, NY; ⁵Laboratoire d'histocompatibilité Hôpital Saint Louis, APHP, Paris, France; ⁶Service des Urgences Néphrologiques et Transplantation Rénale, APHP, Paris, France; ⁷Comprehensive Transplant Center, Northwestern University Feinberg School of Medicine, Chicago, IL; ⁸Northwestern University Feinberg School of Medicine, Chicago, IL; ⁹Department of Transplantation Medicine, Weill Cornell Medical College, New York, NY.
Current strategies to improve graft outcome following kidney transplantation consider information at the HLA loci. We asked whether information outside of the HLA loci can…