Cell adhesion molecule-1 (CADM1) expressed on adult T-cell leukemia/lymphoma cells is not involved in the interaction with macrophages.

  • Komohara Yoshihiro
    Department of Cell Pathology, Graduate School of Medical Sciences, Kumamoto University
  • Ma Chaoya
    Department of Cell Pathology, Graduate School of Medical Sciences, Kumamoto University
  • Yano Hiromu
    Department of Cell Pathology, Graduate School of Medical Sciences, Kumamoto University
  • Pan Cheng
    Department of Cell Pathology, Graduate School of Medical Sciences, Kumamoto University
  • Horlad Hasita
    Department of Cell Pathology, Graduate School of Medical Sciences, Kumamoto University
  • Saito Yoichi
    Department of Cell Pathology, Graduate School of Medical Sciences, Kumamoto University
  • Ohnishi Koji
    Department of Cell Pathology, Graduate School of Medical Sciences, Kumamoto University
  • Fujiwara Yukio
    Department of Cell Pathology, Graduate School of Medical Sciences, Kumamoto University
  • Okuno Yutaka
    Department of Hematology, Graduate School of Medical Sciences, Kumamoto University
  • Nosaka Kisato
    Department of Hematology, Graduate School of Medical Sciences, Kumamoto University
  • Shimosaki Shunsuke
    Division of Tumor and Cellular Biochemistry, Department of Medical Sciences, University of Miyazaki
  • Morishita Kazuhiro
    Division of Tumor and Cellular Biochemistry, Department of Medical Sciences, University of Miyazaki
  • Matsuoka Masao
    Department of Hematology, Graduate School of Medical Sciences, Kumamoto University Laboratory of Virus Control, Institute for Virus Research, Kyoto University
  • Wakayama Tomohiko
    Department of Histology, Graduate School of Medical Sciences, Kumamoto University
  • Takeya Motohiro
    Department of Cell Pathology, Graduate School of Medical Sciences, Kumamoto University

Search this article

Description

<p>Cell adhesion molecule 1 (CADM1) is a cell adhesion molecule that is expressed in brain, liver, lung, testis, and some kinds of cancer cells including adult T-cell leukemia/lymphoma (ATLL). Recent studies have indicated the involvement of CADM1 in cell-cell contact between cytotoxic T-lymphocytes and virus infected cells. We previously reported that cell-cell interaction between lymphoma cells and macrophages induces lymphoma cell proliferation. In the present study, we investigated whether CADM1 is associated with cell-cell interaction between several human lymphoma cell lines and macrophages.</p><p>CADM1 expression was observed in the ATLL cell lines, ATN-1, ATL-T, and ATL-35T, and in the B cell lymphoma cell lines, TL-1, DAUDI, and SLVL, using western blotting. Significant cell-cell interaction between macrophages and ATN-1, ATL-T, ATL-35T and MT-2, DAUDI, and SLVL cells, as assessed by induction of cell proliferation, was observed. Immunohistochemical analysis of human biopsy samples indicated CADM1 expression in 10 of 14 ATLL cases; however, no case of follicular lymphoma or diffuse large B-cell lymphoma was positive for CADM1. Finally, the interaction of macrophages with cells of the CADM1-negative ED ATLL cell line and CADM1-transfected ED cells was tested. However, significant cell-cell interaction between macrophage and CADM1-transfected ED cells was not observed. We conclude that CADM1 was not associated with cell-cell interaction between lymphoma cells and macrophages, although CADM1 may be a useful marker of ATLL for diagnostic procedures.</p>

Journal

Citations (2)*help

See more

References(23)*help

See more

Related Projects

See more

Details 詳細情報について

Report a problem

Back to top