title: Absence of both CD56 and CD117 expression on malignant plasma cells is related with a poor prognosis in patients with newly diagnosed multiple myeloma.
abstract: We retrospectively evaluated the association between the expression of CD56 and CD117 on neoplastic plasma cells and patients prognosis in 50 newly diagnosed multiple myeloma (MM) patients. The overall survival (OS) was measured and Cox proportional hazards model was used to evaluate CD56 and CD117 as possible prognostic factors for OS. CD56+ and CD117+ were detected in 74% and 32% multiple myeloma cases, respectively. In Kaplan-Meier analysis, CD56 and CD117 expression demonstrated potential prognostic impacts and were associated with longer OS (CD56: p=0.004, CD117: p=0.022), absence of both of them showed significantly shorter OS (p=0.046 compared to CD56+/CD117+ group, p=0.014 compared to CD56-/CD117+ or CD56+/CD117- group). Multivariate analysis showed that CD56 was independently prognostic of longer OS (p=0.012). After induction chemotherapy, overall response rates (ORR) was higher in CD56-positive group compared to CD56-negative group (70.6% versus 30.0%, p=0.024), however, there was no difference between CD117-positive and CD117-negative group (69.2% versus 58.1%, p=0.448). This study demonstrated the prognostic value of CD56 and CD117 in patients with newly diagnosed MM patients. Absence of both of them was associated with the poorest prognosis.
authors.affiliation: Department of Hematology, The Second Hospital of Anhui Medical University, Hefei, Anhui 230601, China; Hematology Research Center, Anhui Medical University, Hefei, Anhui 230601, China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Pan
authors.affiliation: Department of Hematology, The Second Hospital of Anhui Medical University, Hefei, Anhui 230601, China; Hematology Research Center, Anhui Medical University, Hefei, Anhui 230601, China.
authors.forename: Huiping
authors.initials: H
authors.lastname: Wang
authors.affiliation: Department of Hematology, The Second Hospital of Anhui Medical University, Hefei, Anhui 230601, China; Hematology Research Center, Anhui Medical University, Hefei, Anhui 230601, China.
authors.forename: Qianshan
authors.initials: Q
authors.lastname: Tao
authors.affiliation: Department of Hematology, The Second Hospital of Anhui Medical University, Hefei, Anhui 230601, China; Hematology Research Center, Anhui Medical University, Hefei, Anhui 230601, China.
authors.forename: Cui
authors.initials: C
authors.lastname: Zhang
authors.affiliation: Department of Hematology, The Second Hospital of Anhui Medical University, Hefei, Anhui 230601, China; Hematology Research Center, Anhui Medical University, Hefei, Anhui 230601, China.
authors.forename: Dongdong
authors.initials: D
authors.lastname: Yang
authors.affiliation: Department of Hematology, The Second Hospital of Anhui Medical University, Hefei, Anhui 230601, China; Hematology Research Center, Anhui Medical University, Hefei, Anhui 230601, China.
authors.forename: Hui
authors.initials: H
authors.lastname: Qin
authors.affiliation: Department of Hematology, The Second Hospital of Anhui Medical University, Hefei, Anhui 230601, China; Hematology Research Center, Anhui Medical University, Hefei, Anhui 230601, China.
authors.forename: Shudao
authors.initials: S
authors.lastname: Xiong
authors.affiliation: Department of Hematology, The Second Hospital of Anhui Medical University, Hefei, Anhui 230601, China; Hematology Research Center, Anhui Medical University, Hefei, Anhui 230601, China.
authors.forename: Lili
authors.initials: L
authors.lastname: Tao
authors.affiliation: Department of Hematology, The Second Hospital of Anhui Medical University, Hefei, Anhui 230601, China; Hematology Research Center, Anhui Medical University, Hefei, Anhui 230601, China.
authors.forename: Fan
authors.initials: F
authors.lastname: Wu
authors.affiliation: Department of Hematology, The Second Hospital of Anhui Medical University, Hefei, Anhui 230601, China; Hematology Research Center, Anhui Medical University, Hefei, Anhui 230601, China.
authors.forename: Jiakui
authors.initials: J
authors.lastname: Zhang
authors.affiliation: Department of Hematology, The Second Hospital of Anhui Medical University, Hefei, Anhui 230601, China; Hematology Research Center, Anhui Medical University, Hefei, Anhui 230601, China. Electronic address: zzzm889@163.com.
authors.forename: Zhimin
authors.initials: Z
authors.lastname: Zhai
mesh_terms: D019002:CD56 Antigen / Q000276:immunology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009101:Multiple Myeloma / Q000175:diagnosis / Q000276:immunology / Q000473:pathology*; D011379:Prognosis; D019009:Proto-Oncogene Proteins c-kit / Q000276:immunology*
chemical_list: D019002:CD56 Antigen; D019009:Proto-Oncogene Proteins c-kit
keywords: CD117; CD56; Immunophenotype; Multiple myeloma; Survival