The role of Core C is to provide mouse models to all research projects. We will pursue two specific aims.
Aim 1 includes: 1) coordinating, purchasing and housing immunodeficient (NOD/SCID and NOD/SCID/yc KO) mice, which will be used to prepare humanized mice (see Aim 2) for all projects (except Project 3, as explained in the Research Strategies section);and 2) maintaining and producing immunodeficient porcine cytokine transgenic mice. The porcine cytokine transgenic mice generated in this laboratory provide an excellent murine model for porcine hematopoietic stem/progenitor cell transplantation. These mice will be used to evaluate CD47 gene transduction in porcine hematopoietic progenitors (Project 2), and to prepare hu-mice for assessing human NK cell tolerance to porcine xenografts by mixed hematopoietic chimerism (Project 3).
Aim 2 is to provide humanized mouse (hu-mouse) models, including: 1) 'standard'hu-mice with a functional human immune system;2) hu-mice with porcine thymic grafts;3) transgenic hu-mice that express human CD39 transgenes, and 4) porcine chimeric hu-mice with porcine hematopoietic cells expressing a HLA-E/human B2m/peptide trimer. Our approach to generating hu-mice with a functional immune system is to transplant fetal thymus tissue (under renal capsule) and CD34+ hematopoietic stem/progenitor cells (i.v.) in immunodeficient mice. The 'standard'hu-mice will be used to test the immunoregulatory reagents/protocols to be used in non-human primates (Projects 1 and 2). The HLAE/ human p2m/peptide trimer-expressing porcine chimeric hu-mice will be used to assess the potential of NK cell inhibitory ligand expression on porcine cells to induce human NK cell tolerance in Project 3. Hu-mice with porcine thymic grafts and human CD39-overexpresing hu-mice will be used in Project 4 to investigate the role of CD39 in human regulatory T cell development in xenogeneic porcine thymic grafts. The core will prepare and validate the mouse models, and then either perform the proposed experiments (for Projects 1 and 2) or provide 'ready-to-use'models to the investigators (for Projects 3 and 4). As detailed in each research components, these mouse models are essential to the success of this program project.

Public Health Relevance

Xenotransplantation from pigs provides a possible solution to the over whelming scarcity of human organ donors that presents a major limiting factor in clinical transplantation, the best available therapy for end-stage organ failure. The goal of this core is to provide transgenic and humanized mouse models to the investigators of this program project for better understanding of the major barriers to clinical xenotransplantation.

Agency
National Institute of Health (NIH)
Institute
National Institute of Allergy and Infectious Diseases (NIAID)
Type
Research Program Projects (P01)
Project #
5P01AI045897-13
Application #
8499197
Study Section
Special Emphasis Panel (ZAI1-QV-I)
Project Start
Project End
Budget Start
2013-07-01
Budget End
2014-06-30
Support Year
13
Fiscal Year
2013
Total Cost
$317,194
Indirect Cost
$93,482
Name
Massachusetts General Hospital
Department
Type
DUNS #
073130411
City
Boston
State
MA
Country
United States
Zip Code
02199
Yamada, Kazuhiko; Shah, Jigesh A; Tanabe, Tatsu et al. (2017) Xenotransplantation: Where Are We with Potential Kidney Recipients? Recent Progress and Potential Future Clinical Trials. Curr Transplant Rep 4:101-109
Giwa, Sebastian; Lewis, Jedediah K; Alvarez, Luis et al. (2017) The promise of organ and tissue preservation to transform medicine. Nat Biotechnol 35:530-542
Tena, Aseda A; Sachs, David H; Mallard, Christopher et al. (2017) Prolonged Survival of Pig Skin on Baboons After Administration of Pig Cells Expressing Human CD47. Transplantation 101:316-321
Chen, Bing; Fan, Wei; Zou, Jun et al. (2017) Complement Depletion Improves Human Red Blood Cell Reconstitution in Immunodeficient Mice. Stem Cell Reports 9:1034-1042
Sprangers, B; DeWolf, S; Savage, T M et al. (2017) Origin of Enriched Regulatory T Cells in Patients Receiving Combined Kidney-Bone Marrow Transplantation to Induce Transplantation Tolerance. Am J Transplant 17:2020-2032
Leonard, D A; Mallard, C; Albritton, A et al. (2017) Skin grafts from genetically modified ?-1,3-galactosyltransferase knockout miniature swine: A functional equivalent to allografts. Burns 43:1717-1724
Tanabe, T; Watanabe, H; Shah, J A et al. (2017) Role of Intrinsic (Graft) Versus Extrinsic (Host) Factors in the Growth of Transplanted Organs Following Allogeneic and Xenogeneic Transplantation. Am J Transplant 17:1778-1790
Yamada, Kazuhiko; Sykes, Megan; Sachs, David H (2017) Tolerance in xenotransplantation. Curr Opin Organ Transplant 22:522-528
Mastroianni, Melissa; Ng, Zhi Yang; Goyal, Ritu et al. (2017) Topical Delivery of Immunosuppression to Prolong Xenogeneic and Allogeneic Split-Thickness Skin Graft Survival. J Burn Care Res :
Tan, Shulian; Li, Yang; Xia, Jinxing et al. (2017) Type 1 diabetes induction in humanized mice. Proc Natl Acad Sci U S A 114:10954-10959

Showing the most recent 10 out of 185 publications