title: [Expression of CD147 and matrix metalloproteinase-9 in children with non-Hodgkin's lymphoma and its correlation with prognosis].
abstract: OBJECTIVE
  To investigate the expression of CD147 and matrix metalloproteinase-9 (MMP-9) in children with non-Hodgkin's lymphoma (NHL) and its correlation with clinical stage, tumor size, bone marrow invasion, immunological typing, serum lactate dehydrogenase (LDH) concentration, and prognosis.
  
  
  METHODS
  Specimens excised from NHL patients were prepared. Expression of CD147 and MMP-9 were tested by streptavidin-biotin complex (SABC) immunohistochemistry and its correlation with clinical results were analyzed.
  
  
  RESULTS
  The positive rate of CD147 expression was 73% (45/62), 17 cases were (-), 11 cases (+), 34 cases (++) and 21 cases (+++). The positive rate of MMP-9 expression was 81% (50/62), 12 cases were (-), 13 cases (+), 18 cases (++) and 19 cases (+++). The Spearman rank correlation analysis indicated that there was a positive correlation between CD147 and MMP-9 expressions in NHL (r(S) = 0.763, P = 0.034). Expression of CD147 was determined in relation to factors that included clinical bone marrow invasion, tumor size, LDH level as well as the clinical stage; expression of MMP-9 had a positive correlation with bone marrow invasion, tumor size and clinical phases. The 5-year survival rates (5YSR) were 78% (22/28) and 45% (15/34) in the cases whose CD147 expression was (-)-(+) and (++)-(+++), respectively, and 5YSR were 84% (21/25) and 43% (16/37) in the cases whose MMP-9 expression was (-)-(+) and (++)-(+++) respectively, the difference was significant. Cox multivariate analysis showed that both CD147 and MMP-9 were important prognostic factors.
  
  
  CONCLUSIONS
  The increased expression of CD147 and/or MMP-9 correlates with a poor clinical outcome in patients with NHL.
authors.affiliation: Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan 430030, China.
authors.forename: Ai-guo
authors.initials: AG
authors.lastname: Liu
authors.forename: Qun
authors.initials: Q
authors.lastname: Hu
authors.forename: Hong-fang
authors.initials: HF
authors.lastname: Tao
authors.forename: Shuang-you
authors.initials: SY
authors.lastname: Liu
authors.forename: Liu-qing
authors.initials: LQ
authors.lastname: Zhang
authors.forename: Ying
authors.initials: Y
authors.lastname: Hu
mesh_terms: D000293:Adolescent; D051926:Basigin / Q000378:metabolism*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D008228:Lymphoma, Non-Hodgkin / Q000175:diagnosis / Q000378:metabolism* / Q000473:pathology; D008297:Male; D020780:Matrix Metalloproteinase 9 / Q000378:metabolism*; D011379:Prognosis; D015996:Survival Rate
chemical_list: D051926:Basigin; D020780:Matrix Metalloproteinase 9