PMID- 15205689 OWN - NLM STAT- MEDLINE DCOM- 20041019 LR - 20171116 IS - 1671-167X (Print) IS - 1671-167X (Linking) VI - 36 IP - 3 DP - 2004 Jun 18 TI - [A novel approach to HLA-mismatched transplantation]. PG - 229-33 AB - OBJECTIVE: To investigate the new methods of human leukocyte antigen (HLA) mismatched transplantation in patients with hematologic malignancies. METHODS: In this pilot study, 58 patients, 33 with high-risk or advanced leukemia, were transplanted with cells from an HLA-haploidentical family donor with at least 1 of 6 loci mismatched. After conditioning, patients received non ex vivo, T cell-depleted grafts of G-CSF-primed bone marrow plus G-CSF-mobilized peripheral blood stem cells, as well as graft-versus-host-disease (GVHD) prophylaxis. RESULTS: All patients achieved sustained, full donor type engraftment. The incidence of grades II-IV acute GVHD was 37.9% (22 of 58), and grades III and IV aGVHD developed in only 2 and 1 patients, respectively. Furthermore, there was no statistically significant association between the extents of HLA mismatching and the degree of aGVHD. Twenty six of 42 (61.9%) evaluable patients had developed chronic GVHD (cGVHD) with limited cGVHD in 15. Nine patients relapsed, all but one with advanced or refractory leukemia. Fourteen patients died (24.1%), of whom 7 died of recurrent diseases and 7 of transplant-related complications (TRM): main causes of TRM were infection(2), intestinal pneumonia(2), CMV encephalitis(1), hepatitis(1) and aGVHD (1). Forty-four of the 58 patients (75.9%) survived and 42 (72.4%) were disease free with a median follow-up of 10 months (range, 2 to 37.5 months). The 2-year probabilities of disease-free survival for patients with standard and high risks were 77.6% and 63.2% respectively, which showed that high-risk disease status at transplantation was associated with worse disease-free survival (P=0.04). The degree of HLA mismatching between the donor and the recipient was not related to event-free survival (P=0.57), nor was cell number infused and aGVHD (P=0.78, 0.94 respectively). CONCLUSION: (1)HLA mismatched transplantation can be per formed without ex vivo T cell depletion. (2)Using G CSF mobilized PBSCs as a source of stem cells may be possible and safe even in HLA mismatched transplantation. FAU - Huang, Xiao-jun AU - Huang XJ AD - Institute of Hematology, Peking University People's Hospital, Beijing 100044, China. xjhrm@medmail.com.cn FAU - Han, Wei AU - Han W FAU - Xu, Lan-ping AU - Xu LP FAU - Chen, Huan AU - Chen H FAU - Liu, Dai-hong AU - Liu DH FAU - Chen, Yu-hong AU - Chen YH FAU - Jiang, Qian AU - Jiang Q FAU - Lu, Jin AU - Lu J FAU - Liu, Kai-yan AU - Liu KY FAU - Ren, Han-yun AU - Ren HY FAU - Lu, Dao-pei AU - Lu DP LA - chi PT - English Abstract PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - China TA - Beijing Da Xue Xue Bao Yi Xue Ban JT - Beijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences JID - 101125284 SB - IM MH - Adolescent MH - Adult MH - Child MH - Female MH - Follow-Up Studies MH - Graft vs Host Disease/prevention & control MH - Hematopoietic Stem Cell Transplantation/*methods MH - *Histocompatibility Testing MH - Humans MH - Leukemia/*therapy MH - Male MH - Pilot Projects EDAT- 2004/06/19 05:00 MHDA- 2004/10/20 09:00 CRDT- 2004/06/19 05:00 PHST- 2004/06/19 05:00 [pubmed] PHST- 2004/10/20 09:00 [medline] PHST- 2004/06/19 05:00 [entrez] PST - ppublish SO - Beijing Da Xue Xue Bao Yi Xue Ban. 2004 Jun 18;36(3):229-33.