Articles tagged "Genomic markers"

2022 American Transplant Congress
Use of Ancestral Genetic SNP Phenotyping to Define Genotypic Ethnicity in Solid Organ Transplant Patients
P. Jindra, T. Tu, N. D'Silva, C. T. Stewart, J. Magana, N. Chitnis
Surgery, Baylor College of Medicine, Houston, TX
*Purpose: Transplantation research has mainly categorized ethnicity into four main groups African American, Caucasian, Hispanic, and Asian Pacific Islander. Our world has increased in admixure…
2022 American Transplant Congress
A Three-gene Peripheral Blood Potential Diagnosis Signature Associated With Autophagy For Antibody-mediated Rejection In Renal Transplantation
Y. Wang, Y. Xu, H. Zhang, X. Hu
Department of Urology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
*Purpose: Antibody-mediated rejection (AMR) is emerging as a major cause of graft loss in renal transplantation. Nowadays, non-invasive diagnosis of AMR with high accuracy is…
2022 American Transplant Congress
RNA Sequencing Profiling of Pretransplant Blood Identified Variant Allele Specific Expression of Leukocyte Immunoglobulin-Like Receptors (LILRs) Genes Associated with Graft Loss in Kidney Transplant Recipients
Z. Sun¹, Z. Yi¹, Z. Zhang¹, P. Cravedi¹, M. Menon², B. Murphy¹, S. Chen³, W. Zhang¹
¹Icahn School of Medicine at Mount Sinai, New York City, NY, ²Yale University School of Medicine, New Heaven, CT, ³Methodist Hospital, Houston, TX
*Purpose: The RNA sequencing has the possibility of detecting overall gene expression as well as allele-specific expression. Here, we reported a study of genome-wide allele…
2022 American Transplant Congress
The Role Of Combined Gene Expression Profiling And Donor-derived Cell-free Dna In Differentiating Acute Rejection In Liver Transplant Recipients
S. Park¹, M. Kandpal², K. Guo², S. Kleiboeker³, R. Sinha⁴, M. Abecassis⁵, J. Levitsky⁶
¹Transplant nephrology, Northwestern University, Chicago, IL, ²Northwestern University, Chicago, IL, ³Eurofins Viracor, Lee's Summit, MO, ⁴Eurofins Viracor, Lee's summit, MO, ⁵University of Arizona, Tucson, AZ, ⁶Northwestern University Feinberg School of Medicine, Chicago, IL
*Purpose: In our previous studies, blood-based gene expression profiling (GEP) and donor-derived cell-free DNA (dd-cfDNA) have been independently validated in liver transplant recipients (LTR) to…
2022 American Transplant Congress
Induction of Tacrolimus Clearance by Steroids Varies by Cyp3a5 Genotype in Kidney Transplant Recipients: A Drug-Drug-Gene Interaction
P. A. Jacobson¹, A. Saqr¹, M. Al-Kofahi¹, D. P. Schladt², W. Guan³, W. S. Oetting¹, R. Mannon⁴, C. R. Dorr⁵, R. P. Remmel¹, G. C. Onyeaghala⁶, B. Wu³, A. K. Israni⁷, A. Matas⁸
¹Univ of MN, College of Pharmacy, Minneapolis, MN, ²Hennepin Health Research Institute, Minneapolis, MN, ³Univ of MN, Biostatistics, Minneapolis, MN, ⁴Univ of Nebraska, Dept of Medicine, Omaha, NE, ⁵Hennepin Health Research Institute and Dept of Medicine, Minneapolis, MN, ⁶Hennepin Healthcare Research Institute, Minneapolis, MN, ⁷Hennepin Health Dept of Medicine and Univ of MN, Minneapolis, MN, ⁸University of MN, Dept of Surgery, Minneapolis, MN
*Purpose: Tacrolimus (TAC) is the primary immunosuppressant used in organ transplantation. TAC is a substrate for CYP3A4/5. These enzymes are inhibited or induced by multiple…
2021 American Transplant Congress
Does the Timing of Subclinical Acute Rejection After Kidney Transplant Matter?
P. Portocarrero¹, S. Park², K. Guo³, L. Zhao³, J. Friedewald²
¹Nephrology, Northwestern University, Chicago, IL, ²Transplant Nephrology, Northwestern University, Chicago, IL, ³Feinberg School of Medicine, Northwestern University, Chicago, IL
*Purpose: We hypothesized that the timing of subclinical acute rejection (subAR) diagnosed with biopsy, gene expression profile or donor-derived cell-free DNA is associated with poor…
2021 American Transplant Congress
Analysis of Single Cell RNA Sequencing Data to Define Biomarkers of Human Liver Immune Tolerance
B. Rocque¹, A. Barbetta¹, P. Singh¹, C. Goldbeck¹, D. G. Helou², E. Loh³, N. Ung⁴, J. S. Lee⁴, O. Akbari², J. Emamaullee¹
¹Surgery, University of Southern California Keck School of Medicine, Los Angeles, CA, ²Molecular Microbiology and Immunology, University of Southern California, Los Angeles, CA, ³Norris Medical Library, University of Southern California Keck School of Medicine, Los Angeles, CA, ⁴Ellison Institute, University of Southern California, Los Angeles, CA
*Purpose: The liver is unique in its ability to maintain immune homeostasis and promote operational tolerance following solid organ transplantation. Single-cell RNA sequencing (scRNA seq)…
2021 American Transplant Congress
Early Experience with Broad Renal Genetic Testing in an Academic Transplant Center
E. Tantisattamo¹, K. Brossart², N. Ioannou², S. McCormick², P. R. Billings², H. Tabriziani²
¹Division of Nephrology, Hypertension and Kidney Transplantation, Division of Nephrology, Hypertension and Kidney Transplantation, Department of Medicine, University of California Irvine School of Medicine, Orange, CA, ²Natera, Inc., San Carlos, CA
*Purpose: Genetic testing is an emerging tool in kidney transplantation (KT), particularly to assess risk of recurrent disease in patients with KT and for selection…
2021 American Transplant Congress
Detection of Rejection in Kidney Transplant Patients Using an Algorithm That Combines Donor Fraction and Absolute Donor-derived Cell-free DNA
S. Bunnapradist¹, E. Ahmed², M. Maninder², Z. P. Demko², P. R. Billings², H. Tabriziani², P. Gauthier³
¹David Geffen Sch of Med @ UCLA, Los Angeles, CA, ²Natera, Inc., San Carlos, CA, ³Natera, Inc., Los Angeles, CA
*Purpose: Donor-derived cell-free DNA (dd-cfDNA) in the plasma of renal allograft patients is a clinically validated biomarker for allograft injury and rejection. Several dd-cfDNA assays…
2021 American Transplant Congress
Identification of Molecular Markers for Liver Cirrhosis by Single-nucleus Rna Sequencing
C. Kuscu¹, C. Kuscu¹, M. Akram², A. Shetty³, D. G. Maluf⁴, J. Eason¹, V. Mas⁵
¹Surgery, James D Eason Transplat Institute, Memphis, TN, ²Surgery, Center for Biomedical Informatics, Memphis, TN, ³Surgery, Institute for Genome Sciences, School of Medicine, Baltimore, MD, ⁴Surgery, Program in Transplantation University of Maryland, Baltimore, MD, ⁵Surgery, Division of Surgical Science University of Maryland, Baltimore, MD
*Purpose: Non-alcoholic fatty liver disease (NAFLD) is characterized by metabolic syndrome and the accumulation of fat in the liver cells (hepatocytes) leading to inflammation and…