title: [Expression and prognostic value of regulatory T cells and M2 macrophages in diffuse large B-cell lymphoma tissues].
abstract: OBJECTIVE
  To explore the prognostic value of regulatory T cells (Tregs) and M2 macrophages in diffuse large B-cell lymphoma (DLBCL) tissues.
  
  
  METHODS
  The expression of CD163 and Foxp3 was detected by immunohistochemistry in 92 cases of DLBCL, and it was statistically analyzed whether their expressions correlate with clinical data and prognosis in patients with DLBCL.
  
  
  RESULTS
  The density of M2 macrophage and regulatory T cells in DLBCL tumor tissues was significantly higher than that in the adjacent tissues (P = 0.02, P = 0.04). The expression of M2 macrophages was significantly positively correlated with regulatory T cells expression (r = 2.012, P < 0.05). High density of M2 or Tregs had a relationship with extranodal involvement (P < 0.05). Cox regression analysis showed that the expressions of CD163 and Foxp3 were independent prognostic factors of DLBCL (P < 0.05).
  
  
  CONCLUSIONS
  Combined detection of the expression of CD163 and Foxp3 proteins and then evaluation of the amount of M2 macrophages and Tregs can be used to more closely predict the prognosis for DLBCL patients.
authors.affiliation: Tianjin Medical University Cancer Institute Hospital, Sino-US Center for Lymphoma and Leukemia, Tianjin Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China.
authors.forename: Yuan-lin
authors.initials: YL
authors.lastname: Xu
authors.forename: Hua-qing
authors.initials: HQ
authors.lastname: Wang
authors.forename: Zheng-zi
authors.initials: ZZ
authors.lastname: Qian
authors.forename: Zheng
authors.initials: Z
authors.lastname: Song
authors.forename: Shi-yong
authors.initials: SY
authors.lastname: Zhou
authors.forename: Hui-lai
authors.initials: HL
authors.lastname: Zhang
authors.forename: Li-hua
authors.initials: LH
authors.lastname: Qiu
authors.forename: Xian-huo
authors.initials: XH
authors.lastname: Wang
authors.forename: Ping
authors.initials: P
authors.lastname: Wang
mesh_terms: D006801:Humans; D007150:Immunohistochemistry; D016403:Lymphoma, Large B-Cell, Diffuse / Q000175:diagnosis*; D008264:Macrophages / Q000502:physiology*; D011379:Prognosis; D050378:T-Lymphocytes, Regulatory / Q000502:physiology*