PMID- 29029457 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20191120 IS - 1949-2553 (Electronic) IS - 1949-2553 (Linking) VI - 8 IP - 39 DP - 2017 Sep 12 TI - Prognostic relevance of protein expression, clinical factors, and MYD88 mutation in primary bone lymphoma. PG - 65609-65619 LID - 10.18632/oncotarget.19936 [doi] AB - Primary bone lymphomas (PBLs) are composed of malignant lymphoid cells presenting in osseous sites, without supra-regional lymph node or extranodal involvement. We systematically characterized the immunophenotype and the myeloid differentiation factor 88 (MYD88)-L265P gene mutation status in PBL. Clinical data from 19 patients with PBL treated at Nanjing Drum Tower Hospital between 2009 and 2015 were analyzed retrospectively. Protein expression patterns were identified immunohistochemically, and MYD88 mutation was assessed using polymerase chain reaction and direct DNA sequencing. Fifteen patients presented with diffuse large B-cell lymphoma. Clinical factors favoring a good prognosis were an age < 60 years and rituximab treatment. B-cell lymphoma 2 expression was detected in 5/15 diffuse large B-cell lymphoma patients, and was associated with a poor prognosis in a univariate model. Janus kinase/signal transducer and activator of transcription 3 (JAK/STAT3) signaling factors were upregulated in PBLs. All eighteen evaluable PBL samples harbored wild-type MYD88. These data thus suggest that age and rituximab treatment are independent prognostic factors determining overall survival, and that activation of JAK/STAT3 signaling may promote the pathogenesis of PBL. Moreover, the absence of MYD88-L265P mutation in PBL indicate there are distinct pathogenetic backgrounds among extranodal lymphomas. FAU - Xu, Yong AU - Xu Y AD - Department of Hematology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China. FAU - Li, Jian AU - Li J AD - Department of Hematology Oncology, Children's Hospital of Nanjing Medical University, Nanjing, China. FAU - Ouyang, Jian AU - Ouyang J AD - Department of Hematology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China. FAU - Li, Juan AU - Li J AD - Department of Hematology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China. FAU - Xu, Jingyan AU - Xu J AD - Department of Hematology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China. FAU - Zhang, Qiguo AU - Zhang Q AD - Department of Hematology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China. FAU - Yang, Yonggong AU - Yang Y AD - Department of Hematology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China. FAU - Zhou, Min AU - Zhou M AD - Department of Hematology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China. FAU - Wang, Jing AU - Wang J AD - Department of Hematology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China. FAU - Zhang, Cuiling AU - Zhang C AD - Department of Hematology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China. FAU - Xu, Yueyi AU - Xu Y AD - Department of Hematology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China. FAU - Li, Ping AU - Li P AD - Department of Hematology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China. FAU - Zhou, Rongfu AU - Zhou R AD - Department of Hematology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China. FAU - Chen, Bing AU - Chen B AD - Department of Hematology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China. LA - eng PT - Journal Article DEP - 20170804 PL - United States TA - Oncotarget JT - Oncotarget JID - 101532965 PMC - PMC5630357 OTO - NOTNLM OT - JAK/STAT OT - MYD88 OT - primary bone lymphoma COIS- CONFLICTS OF INTEREST The authors have no competing interests. EDAT- 2017/10/17 06:00 MHDA- 2017/10/17 06:01 PMCR- 2017/09/12 CRDT- 2017/10/15 06:00 PHST- 2017/05/25 00:00 [received] PHST- 2017/07/25 00:00 [accepted] PHST- 2017/10/15 06:00 [entrez] PHST- 2017/10/17 06:00 [pubmed] PHST- 2017/10/17 06:01 [medline] PHST- 2017/09/12 00:00 [pmc-release] AID - 19936 [pii] AID - 10.18632/oncotarget.19936 [doi] PST - epublish SO - Oncotarget. 2017 Aug 4;8(39):65609-65619. doi: 10.18632/oncotarget.19936. eCollection 2017 Sep 12.