Stable trichimerism after marrow grafting from 2 DLA-identical canine donors and nonmyeloablative conditioning

Scott S. Graves, William Hogan, Christian S. Kuhr, Razvan Diaconescu, Michael A. Harkey, George E. Georges, George E. Sale, Eustacia Zellmer, Szczepan Baran, Christoph Jochum, Brad Stone, Rainer Storb

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Although hematopoietic cell transplantation (HCT) is generally accomplished using a single donor, multiple donors have been used to enhance the speed of engraftment, particularly in the case of umbilical cord blood grafts. Here we posed the question in the canine HCT model whether stable dual-donor chimerism could be established using 2 DLA-identical donors. We identified 8 DLA-identical littermate triplets in which the marrow recipients received 2Gy total body irradiation followed by marrow infusions from 2 donors and postgrafting immunosuppression. All 8 dogs showed initial "trichimerism," which was sustained in 5 dogs, while 2 dogs rejected one of the allografts and remained mixed chimeras, and 1 dog rejected both allografts. Immune function in one trichimeric dog, as tested by mixed leukocyte culture response and antibody response to sheep red blood cells, was found to be normal. Five dogs received kidney grafts from one of their respective marrow donors at least 6 months after HCT without immunosuppressive drugs, and grafts in 4 dogs are surviving without rejection. In summary, following nonmyeloablative conditioning, simultaneous administration of marrow grafts from 2 DLA-identical littermates could result in sustained trichimerism, and immunologic tolerance could include a kidney graft from one of the marrow donors.

Original languageEnglish (US)
Pages (from-to)418-423
Number of pages6
JournalBlood
Volume110
Issue number1
DOIs
StatePublished - Jul 1 2007
Externally publishedYes

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Grafts
Canidae
Bone Marrow
Dogs
Cell Transplantation
Transplants
Allografts
Blood
Immunosuppressive Agents
Kidney
Chimerism
Whole-Body Irradiation
Cells
Irradiation
Fetal Blood
Immunosuppression
Antibody Formation
Sheep
Antibodies
Leukocytes

ASJC Scopus subject areas

  • Hematology

Cite this

Graves, S. S., Hogan, W., Kuhr, C. S., Diaconescu, R., Harkey, M. A., Georges, G. E., ... Storb, R. (2007). Stable trichimerism after marrow grafting from 2 DLA-identical canine donors and nonmyeloablative conditioning. Blood, 110(1), 418-423. https://doi.org/10.1182/blood-2007-02-071282

Stable trichimerism after marrow grafting from 2 DLA-identical canine donors and nonmyeloablative conditioning. / Graves, Scott S.; Hogan, William; Kuhr, Christian S.; Diaconescu, Razvan; Harkey, Michael A.; Georges, George E.; Sale, George E.; Zellmer, Eustacia; Baran, Szczepan; Jochum, Christoph; Stone, Brad; Storb, Rainer.

In: Blood, Vol. 110, No. 1, 01.07.2007, p. 418-423.

Research output: Contribution to journalArticle

Graves, SS, Hogan, W, Kuhr, CS, Diaconescu, R, Harkey, MA, Georges, GE, Sale, GE, Zellmer, E, Baran, S, Jochum, C, Stone, B & Storb, R 2007, 'Stable trichimerism after marrow grafting from 2 DLA-identical canine donors and nonmyeloablative conditioning', Blood, vol. 110, no. 1, pp. 418-423. https://doi.org/10.1182/blood-2007-02-071282
Graves, Scott S. ; Hogan, William ; Kuhr, Christian S. ; Diaconescu, Razvan ; Harkey, Michael A. ; Georges, George E. ; Sale, George E. ; Zellmer, Eustacia ; Baran, Szczepan ; Jochum, Christoph ; Stone, Brad ; Storb, Rainer. / Stable trichimerism after marrow grafting from 2 DLA-identical canine donors and nonmyeloablative conditioning. In: Blood. 2007 ; Vol. 110, No. 1. pp. 418-423.
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