Do Hyoung Lim1, Won Seog Kim2, Seok Jin Kim3, Hae Yong Yoo4, Young Hyeh Ko5. 1. Division of Hematology-Oncology, Department of Medicine, Dankook University College of Medicine, Cheonan, Republic of Korea. 2. Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center Sungkyunkwan University School of Medicine, Seoul, Republic of Korea wskimsmc@skku.edu. 3. Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center Sungkyunkwan University School of Medicine, Seoul, Republic of Korea. 4. Department of Biomedical Sciences, Samsung Research Institute for Future Medicine, Samsung Medical Center, Seoul, Republic of Korea. 5. Department of Pathology, Samsung Medical Center Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
Abstract
AIM: The purpose of the present study was to compare microarray gene-expression profiling data between primary central nervous system (CNS) lymphoma and non-CNS lymphomas. MATERIALS AND METHODS: We performed whole-genomic cDNA-mediated annealing, selection and ligation assay with 177 formalin-fixed paraffin-embedded tumor samples. RESULTS: We identified 20 differentially expressed genes out of which 5 were predominantly expressed in CNS DLBCL compared to non-CNS DLBCL (C16orf59, SLC16A9, HPDL, SPP1, and MAG). SLC16A9 may be involved in aerobic glycolysis of malignant tumors. The alteration in gene expression of SPP1 in primary CNS lymphoma is involved in biological activity, such as CNS tropism, B-cell migration, proliferation, and aggressive clinical behavior. MAG may be an important adhesion molecule that contributes to perineural cancer invasion. CONCLUSION: Genomic differences between CNS and non-CNS DLBCL exist and the most prominent genes are SPP1 and MAG. SPP1 may play a key role in CNS tropism of primary CNS lymphoma. Copyright
AIM: The purpose of the present study was to compare microarray gene-expression profiling data between primary central nervous system (CNS) lymphoma and non-CNS lymphomas. MATERIALS AND METHODS: We performed whole-genomic cDNA-mediated annealing, selection and ligation assay with 177 formalin-fixed paraffin-embedded tumor samples. RESULTS: We identified 20 differentially expressed genes out of which 5 were predominantly expressed in CNS DLBCL compared to non-CNS DLBCL (C16orf59, SLC16A9, HPDL, SPP1, and MAG). SLC16A9 may be involved in aerobic glycolysis of malignant tumors. The alteration in gene expression of SPP1 in primary CNS lymphoma is involved in biological activity, such as CNS tropism, B-cell migration, proliferation, and aggressive clinical behavior. MAG may be an important adhesion molecule that contributes to perineural cancer invasion. CONCLUSION: Genomic differences between CNS and non-CNS DLBCL exist and the most prominent genes are SPP1 and MAG. SPP1 may play a key role in CNS tropism of primary CNS lymphoma. Copyright