Fas and Fas ligand expression on germinal center type-diffuse large B-cell lymphoma is associated with the clinical outcome

Yasushi Kojima, Hisashi Tsurumi, Naoe Goto, Masahito Shimizu, Senji Kasahara, Toshiki Yamada, Nobuhiro Kanemura, Takeshi Hara, Michio Sawada, Masanao Saio, Tetsuya Yamada, Takeshi Takahashi, Eiichi Tomita, Tsuyoshi Takami, Hisataka Moriwaki

研究成果: Article査読

18 被引用数 (Scopus)

抄録

In recent years, diffuse large B-cell lymphoma (DLBCL) has been classified by DNA microarray analysis into the germinal center B-cell-like (GC) type, the activated B-cell-like (ABC) type and type 3. The latter two types can be collectively categorized as the non-GC (NGC) type. From the prognostic perspective, the GC type has a favorable clinical outcome when compared with the NGC type. The protein Fas induces apoptosis of lymphocytes by binding with the Fas ligand (FasL), and escape from such apoptosis is considered to lead to malignant transformation of the cells and unrestricted growth of lymphoma. We proposed a hypothesis that Fas/FasL expression could be possibly related with a better survival of GC type DLBCL and evaluated 69 DLBCL cases immunohistochemically with CD10, Bcl-6, MUM1, Fas and FasL. These lymphomas were classified as GC type (positive for CD10 or Bcl-6 and negative for MUM1) or NGC type. The GC type had a better overall survival rate than the NGC type (P = 0.0723). Among markers as given above, positive CD10 was the most significant prognostic factor for overall survival in total DLBCL (P < 0.05). In the GC type, Fas and FasL expressions were significantly associated with a favorable overall survival (Fas: P < 0.005; FasL: P < 0.05). Hence, Fas or FasL expression might contribute to a better prognosis of this type of DLBCL.

本文言語English
ページ(範囲)465-472
ページ数8
ジャーナルEuropean Journal of Haematology
76
6
DOI
出版ステータスPublished - 06-2006
外部発表はい

All Science Journal Classification (ASJC) codes

  • 血液学

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