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Engraftment Measurement in Human Liver Tissue After Liver Cell Transplantation by Short Tandem Repeats Analysis

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Hepatocyte transplantation has been proposed as a technique for bridging patients to whole-organ transplantation, for providing metabolic support during liver failure, and for replacing whole-organ transplantation in certain metabolic liver diseases. Assessment of hepatocyte engraftment has been difficult to measure, and the degree of engraftment needed to correct various liver disorders is still unknown. A sensitive, simple, and specific method of monitoring engraftment of transplanted hepatocytes for the purpose of bridging human liver failure to native regeneration using short tandem repeats (STRs) was evaluated. The analytical sensitivity of the test was evaluated using DNA mixing curves and established as 0.5% (percentage of donor DNA/recipient DNA). Sex-matched and mismatched cases were included during the validation. The clinical evaluation of the assay was performed using liver samples from two patients who underwent hepatocyte transplantation. We concluded from this study that the AmpFLSTR® Profiler PlusTM PCR Amplification Kit, a well-established technique in forensic medicine, is specific, sensitive, and a reproducible assay for measurement of engraftment after hepatocyte transplantation in both sex-matched and sex-mismatched cases.
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Keywords: Engraftment; Hepatocyte transplantation; Liver transplantation; Short tandem repeats

Document Type: Research Article

Affiliations: 1: *Division of Transplantation, Department of Surgery, Department of Pathology, Virginia Commonwealth University, Richmond, VA 2: †Division of Molecular Diagnostics, Department of Pathology, Virginia Commonwealth University, Richmond, VA

Publication date: 2004-01-01

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  • Cell Transplantation publishes original, peer-reviewed research and review articles on the subject of cell transplantation and its application to human diseases. To ensure high-quality contributions from all areas of transplantation, separate section editors and editorial boards have been established. Articles deal with a wide range of topics including physiological, medical, preclinical, tissue engineering, and device-oriented aspects of transplantation of nervous system, endocrine, growth factor-secreting, bone marrow, epithelial, endothelial, and genetically engineered cells, among others. Basic clinical studies and immunological research papers are also featured. To provide complete coverage of this revolutionary field, Cell Transplantation will report on relevant technological advances, and ethical and regulatory considerations of cell transplants. Cell Transplantation is now an Open Access journal starting with volume 18 in 2009, and therefore there will be an inexpensive publication charge, which is dependent on the number of pages, in addition to the charge for color figures. This will allow work to be disseminated to a wider audience and also entitle the corresponding author to a free PDF, as well as prepublication of an unedited version of the manuscript.

    Cell Transplantation is now being published by SAGE. Please visit their website for the most recent issues.

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