The Wnt signaling pathway and mitotic regulators in the initiation and evolution of mantle cell lymphoma: Gene expression analysis

  • Authors:
    • Yoshizo Kimura
    • Fumiko Arakawa
    • Junichi Kiyasu
    • Hiroaki Miyoshi
    • Maki Yoshida
    • Ayako Ichikawa
    • Daisuke Niino
    • Yasuo Sugita
    • Takashi Okamura
    • Atushi Doi
    • Kaori Yasuda
    • Kosuke Tashiro
    • Satoru Kuhara
    • Koichi Ohshima
  • View Affiliations

  • Published online on: June 12, 2013     https://doi.org/10.3892/ijo.2013.1982
  • Pages: 457-468
Metrics: Total Views: 0 (Spandidos Publications: | PMC Statistics: )
Total PDF Downloads: 0 (Spandidos Publications: | PMC Statistics: )


Abstract

For an accurate understanding of mantle cell lymphoma (MCL), molecular behavior could be staged into two major events: lymphomagenesis with the t(11;14) translocation (initiation), and evolution into a more aggressive form (transformation). Unfortunately, it is still unknown which genes contribute to each event. In this study, we performed cDNA microarray experiments designed based on the concept that morphologically heterogeneous MCL samples would provide insights into the role of aberrant gene expression for both events. A total of 15 MCLs were collected from the files, which include a total of 237 MCL patients confirmed by histology as CCND1-positive. We posited four stepwise morphological grades for MCL: MCL in situ, MCL with classical form (cMCL), MCL with aggressive form (aMCL), and MCL with intermediate morphology between classical and aggressive forms at the same site (iMCL). To identify genes involved in initiation, we compared the tumor cells of MCL in situ (n=4) with normal mantle zone B lymphocytes (n=4), which were selected by laser microdissection (LMD). To identify genes contributing to transformation, we selected the overlapping genes differentially expressed between both cMCL (n=4) vs. aMCL (n=5) and classical vs. aggressive areas in iMCL (n=2) obtained by LMD. A significant number of genes (n=23, p=0.016) belonging to the Wnt signaling pathway were differentially expressed in initiation. This specific activation was confirmed by immuno­histochemistry, as MCL in situ had nuclear localization of phosphorylated-β-catenin with high levels of cytoplasmic Wnt3 staining. For transformation, identified 60 overlapping genes included a number of members of the p53 interaction network (CDC2, BIRC5 and FOXM1), which is known to mediate cell cycle progression during the G2/M transition. Thus, we observe that the Wnt signaling pathway may play an important role in initial lymphomagenesis in addition to t(11;14) translocations, and that specific mitotic regulators facilitate transformation into more aggressive forms.
View Figures
View References

Related Articles

Journal Cover

August 2013
Volume 43 Issue 2

Print ISSN: 1019-6439
Online ISSN:1791-2423

Sign up for eToc alerts

Recommend to Library

Copy and paste a formatted citation
x
Spandidos Publications style
Kimura Y, Arakawa F, Kiyasu J, Miyoshi H, Yoshida M, Ichikawa A, Niino D, Sugita Y, Okamura T, Doi A, Doi A, et al: The Wnt signaling pathway and mitotic regulators in the initiation and evolution of mantle cell lymphoma: Gene expression analysis. Int J Oncol 43: 457-468, 2013
APA
Kimura, Y., Arakawa, F., Kiyasu, J., Miyoshi, H., Yoshida, M., Ichikawa, A. ... Ohshima, K. (2013). The Wnt signaling pathway and mitotic regulators in the initiation and evolution of mantle cell lymphoma: Gene expression analysis. International Journal of Oncology, 43, 457-468. https://doi.org/10.3892/ijo.2013.1982
MLA
Kimura, Y., Arakawa, F., Kiyasu, J., Miyoshi, H., Yoshida, M., Ichikawa, A., Niino, D., Sugita, Y., Okamura, T., Doi, A., Yasuda, K., Tashiro, K., Kuhara, S., Ohshima, K."The Wnt signaling pathway and mitotic regulators in the initiation and evolution of mantle cell lymphoma: Gene expression analysis". International Journal of Oncology 43.2 (2013): 457-468.
Chicago
Kimura, Y., Arakawa, F., Kiyasu, J., Miyoshi, H., Yoshida, M., Ichikawa, A., Niino, D., Sugita, Y., Okamura, T., Doi, A., Yasuda, K., Tashiro, K., Kuhara, S., Ohshima, K."The Wnt signaling pathway and mitotic regulators in the initiation and evolution of mantle cell lymphoma: Gene expression analysis". International Journal of Oncology 43, no. 2 (2013): 457-468. https://doi.org/10.3892/ijo.2013.1982