PMID- 15820259 OWN - NLM STAT- MEDLINE DCOM- 20050524 LR - 20061115 IS - 0022-4804 (Print) IS - 0022-4804 (Linking) VI - 124 IP - 2 DP - 2005 Apr TI - A technique of bone marrow collection from vertebral bodies of cynomolgus macaques for transplant studies. PG - 280-8 AB - BACKGROUND: Strategies to induce donor-specific allograft tolerance are best tested in preclinical models developed in nonhuman primates (NHPs). Most protocols prepare the recipient by infusing hematopoietic cells from the donor. We report here a procedure to isolate and characterize large numbers of bone marrow cells (BMCs) from cynomolgus monkeys (cynos) that can then successfully be transplanted into conditioned recipients. MATERIALS AND METHODS: Vertebral columns of five cynos were excised en bloc and separated into individual vertebrae. The cancelous bone was extracted with a core puncher, fractionated, filtered, centrifuged, and resuspended in transplantation media before being analyzed by flow cytometry. In two instances, the collected BMCs were reinfused into allogeneic recipients preconditioned with a nonmyeloablative regimen. Chimerism was monitored using short-tandem repeat analysis. RESULTS: The mean total BMCs yield was 25.5 x 10(9) (range of 4.00 x 10(9) to 59 x 10(9)) with mean cell viability of 93.4% (range: 90-96%). CD34+ cells and CD3+ cells averaged 0.34 and 3.91% of total BMCs, respectively. This resulted in absolute cell number yields of 1.02 x 10(8) and 1.15 x 10(9) for CD34+ and CD3+ cells, respectively. Graft-versus-host disease was absent in both bone marrow infused animals, and a maximum level of chimerism of 18% was detected at 3 weeks after BMCs infusion. CONCLUSION: We present here the first detailed report of a procedure to retrieve and characterize large numbers of BMCs from vertebral bodies of cynos and demonstrate that cells collected with this technique have the capability of engrafting in allogenic recipients. FAU - Flores, Mona G AU - Flores MG AD - Transplantation Immunology Laboratory, Department of Cardiothoracic Surgery, Falk Cardiovascular Research Center, Stanford University School of Medicine, Stanford, CA 94305-5407, USA. FAU - Holm, Bari AU - Holm B FAU - Larson, Michael J AU - Larson MJ FAU - Lau, Macy K AU - Lau MK FAU - Si, Ming-Sing AU - Si MS FAU - Lowsky, Robert AU - Lowsky R FAU - Rousvoal, Geraldine AU - Rousvoal G FAU - Grumet, F Carl AU - Grumet FC FAU - Strober, Samuel AU - Strober S FAU - Hoppe, Richard AU - Hoppe R FAU - Reitz, Bruce A AU - Reitz BA FAU - Borie, Dominic C AU - Borie DC LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - J Surg Res JT - The Journal of surgical research JID - 0376340 RN - 0 (Immunosuppressive Agents) SB - IM MH - Animals MH - Bone Marrow Cells/*cytology/immunology MH - Cell Separation/*methods MH - Graft Rejection/drug therapy MH - *Hematopoietic Stem Cell Transplantation MH - Hematopoietic Stem Cells/*cytology/immunology MH - Immune Tolerance MH - Immunosuppressive Agents/pharmacology MH - Macaca fascicularis MH - Male MH - Spine/*cytology MH - Transplantation Chimera MH - Transplantation, Homologous EDAT- 2005/04/12 09:00 MHDA- 2005/05/25 09:00 CRDT- 2005/04/12 09:00 PHST- 2004/08/05 00:00 [received] PHST- 2005/04/12 09:00 [pubmed] PHST- 2005/05/25 09:00 [medline] PHST- 2005/04/12 09:00 [entrez] AID - S0022-4804(04)00615-8 [pii] AID - 10.1016/j.jss.2004.09.018 [doi] PST - ppublish SO - J Surg Res. 2005 Apr;124(2):280-8. doi: 10.1016/j.jss.2004.09.018.