PMID- 12563424 OWN - NLM STAT- MEDLINE DCOM- 20040914 LR - 20190922 IS - 1516-3180 (Print) IS - 1516-3180 (Linking) VI - 120 IP - 6 DP - 2002 Nov 1 TI - Addition of exogenous cytokines in mixed lymphocyte culture for selecting related donors for bone marrow transplantation. PG - 175-9 AB - CONTEXT: Mixed lymphocyte culturing has led to conflicting opinions regarding the selection of donors for bone marrow transplantation. The association between a positive mixed lymphocyte culture and the development of graft-versus-host disease (GVHD) is unclear. The use of exogenous cytokines in mixed lymphocyte cultures could be an alternative for increasing the sensitivity of culture tests. OBJECTIVE: To increase the sensitivity of mixed lymphocyte cultures between donor and recipient human leukocyte antigen (HLA) identical siblings, using exogenous cytokines, in order to predict post-transplantation GVHD and/or rejection. TYPE OF STUDY: Prospective study. SETTING: Bone Marrow Transplantation Unit, Universidade Estadual de Campinas. PARTICIPANTS: Seventeen patients with hematological malignancies and their respective donors selected for bone marrow transplantation procedures. PROCEDURES: Standard and modified mixed lymphocyte culturing by cytokine supplementation was carried out using donor and recipient cells typed for HLA. MAIN MEASUREMENTS: Autologous and allogenic responses in mixed lymphocyte cultures after the addition of IL-4 or IL-2. RESULTS: In comparison with the standard method, average responses in the modified mixed lymphocyte cultures increased by a factor of 2.0 using IL-4 (p < 0.001) and 6.4 using IL-2 (p < 0.001), for autologous donor culture responses. For donor-versus-recipient culture responses, the increase was by a factor of 1.9 using IL-4 (p < 0.001) and 4.1 using IL-2 (p < 0.001). For donor-versus-unrelated culture responses, no significant increase was observed using IL-4, and a mean response inhibition of 20% was observed using IL-2 (p < 0.001). Neither of the cytokines produced a significant difference in the unrelated control versus recipient cell responses. CONCLUSION: IL-4 supplementation was the best for increasing the mixed lymphocyte culture sensitivity. However, IL-4 also increased autologous responses, albeit less intensively than IL-2. Thus, with this loss of specificity we believe that it is not worth modifying the traditional mixed lymphocyte culture method, even with IL-4 addition. FAU - Visentainer, Jeane Eliete Laguila AU - Visentainer JE AD - Universidade Estadual de Campinas, Campinas, Sao Paulo, Brazil. jelvisentainer@ibest.com.br FAU - Lieber, Sofia Rocha AU - Lieber SR FAU - Persoli, L gia Beatriz Lopes AU - Persoli Lg FAU - Vigorito, Afonso Celso AU - Vigorito AC FAU - Aranha, Francisco Jos Penteado AU - Aranha FJ FAU - Souza, C rmino Antonio de AU - Souza Cr LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20030122 PL - Brazil TA - Sao Paulo Med J JT - Sao Paulo medical journal = Revista paulista de medicina JID - 100897261 RN - 0 (Adjuvants, Immunologic) RN - 0 (Interleukin-2) RN - 207137-56-2 (Interleukin-4) RN - 82115-62-6 (Interferon-gamma) SB - IM MH - Adjuvants, Immunologic/pharmacology MH - Adult MH - Bone Marrow Transplantation/*immunology MH - Female MH - Graft vs Host Disease/immunology/prevention & control MH - Humans MH - Interferon-gamma/*pharmacology MH - Interleukin-2/*pharmacology MH - Interleukin-4/*pharmacology MH - Lymphocyte Culture Test, Mixed/*methods MH - Male MH - Prospective Studies MH - Sensitivity and Specificity EDAT- 2003/02/04 04:00 MHDA- 2004/09/15 05:00 CRDT- 2003/02/04 04:00 PHST- 2003/02/04 04:00 [pubmed] PHST- 2004/09/15 05:00 [medline] PHST- 2003/02/04 04:00 [entrez] AID - S1516-31802002000600004 [pii] AID - 10.1590/s1516-31802002000600004 [doi] PST - ppublish SO - Sao Paulo Med J. 2002 Nov 1;120(6):175-9. doi: 10.1590/s1516-31802002000600004. Epub 2003 Jan 22.