PMID- 27783263 OWN - NLM STAT- MEDLINE DCOM- 20170407 LR - 20221207 IS - 1573-6814 (Electronic) IS - 1389-9333 (Linking) VI - 18 IP - 1 DP - 2017 Mar TI - HLA-typing analysis following allogeneic bone grafting for sinus lifting. PG - 75-81 LID - 10.1007/s10561-016-9594-1 [doi] AB - According to the Brazilian Association of Organ Transplants, in 2015, 19,408 bone transplants were performed in Brazil, over 90% by Dental Surgeons. The surgical technique itself has a respectable number of reports regarding its clinical efficacy, as measured by long-term survival of dental implants in grafted areas. Uncertainty remains, however, as to whether fresh frozen grafts from human bone donors remain immunologically innocuous in the body of the host. Six male with no previous medical history of note, including systemic diseases, surgery or blood transfusion were selected. These patients underwent reconstructive procedures (sinus lifting) using fresh frozen human bone from a tissue bank. All patients had venous blood samples collected prior to surgery and 6 months after the procedure. Anti-HLA analysis for the detection of HLA (human leukocyte antigen) antibodies was performed using methods such as the LABScreen PRA Class I and Class II, LABScreen Single Antigen Class I and Class II, Luminex Platform. Reactive individuals to the screening tests (LABScreen PRA) were further investigated to determine the specificity of the antibodies detected (LABScreen Single Antigen) with a cutoff value of median fluorescence intensity >/=500. As a result, it was observed that two patients (33%) were positive in screening tests, one presenting with anti-HLA Class I and II sensitization and the other with anti-HLA class II. The specificity analysis showed that the patients sensitized to HLA class II presented 4 specificities, 3 of which immunologically relevant. In the second individual, 23 specificities were identified, 6 of which immunologically important for HLA class I and 4 specificities for HLA class II, 3 of these were immunologically important. All specificities detected had average fluorescence. These findings are suggestive that sinus-lifting procedures with allogeneic bone can induce immunological sensitization. FAU - Piaia, Marcelo AU - Piaia M AD - Laboratory of Immunology and Molecular Biology, Sao Leopoldo Mandic Institute and Research Center, R. Jose Rocha Junqueira, 13, Campinas, SP, 13045-755, Brazil. FAU - Bub, Carolina Bonet AU - Bub CB AD - Hospital Israelita Albert Einstein, Sao Paulo, SP, Brazil. FAU - Succi, Guilherme de Menezes AU - Succi GM AD - Laboratory of Immunology and Molecular Biology, Sao Leopoldo Mandic Institute and Research Center, R. Jose Rocha Junqueira, 13, Campinas, SP, 13045-755, Brazil. FAU - Torres, Margareth AU - Torres M AD - Hospital Israelita Albert Einstein, Sao Paulo, SP, Brazil. FAU - Costa, Thiago Henrique AU - Costa TH AD - Hospital Israelita Albert Einstein, Sao Paulo, SP, Brazil. FAU - Pinheiro, Fabricio Costa AU - Pinheiro FC AD - Hospital Israelita Albert Einstein, Sao Paulo, SP, Brazil. FAU - Napimoga, Marcelo Henrique AU - Napimoga MH AD - Laboratory of Immunology and Molecular Biology, Sao Leopoldo Mandic Institute and Research Center, R. Jose Rocha Junqueira, 13, Campinas, SP, 13045-755, Brazil. marcelo.napimoga@gmail.com. LA - eng PT - Journal Article DEP - 20161025 PL - Netherlands TA - Cell Tissue Bank JT - Cell and tissue banking JID - 100965121 RN - 0 (Antibodies) RN - 0 (HLA Antigens) RN - 0 (Histocompatibility Antigens Class I) RN - 0 (Histocompatibility Antigens Class II) SB - IM MH - Aged MH - Antibodies/*blood/*immunology MH - *Bone Transplantation MH - Bone and Bones/*immunology MH - Cryopreservation MH - HLA Antigens/*immunology MH - Histocompatibility Antigens Class I/immunology MH - Histocompatibility Antigens Class II/immunology MH - *Histocompatibility Testing MH - Humans MH - Male MH - Middle Aged MH - Plastic Surgery Procedures MH - Transplantation, Homologous OTO - NOTNLM OT - Allografts OT - Bone graft OT - Dental implant OT - HLA OT - Immunology OT - Transplant EDAT- 2016/10/27 06:00 MHDA- 2017/04/08 06:00 CRDT- 2016/10/27 06:00 PHST- 2016/08/03 00:00 [received] PHST- 2016/10/21 00:00 [accepted] PHST- 2016/10/27 06:00 [pubmed] PHST- 2017/04/08 06:00 [medline] PHST- 2016/10/27 06:00 [entrez] AID - 10.1007/s10561-016-9594-1 [pii] AID - 10.1007/s10561-016-9594-1 [doi] PST - ppublish SO - Cell Tissue Bank. 2017 Mar;18(1):75-81. doi: 10.1007/s10561-016-9594-1. Epub 2016 Oct 25.