Table 2.
Selected genetic factors in primary central nervous system lymphoma and their biologic and prognostic significance
Gene | Biologic effects | Possible clinical significance |
---|---|---|
ECM family: SPP1 and CHI3L1 |
CNS tropism, B-cell migration, lymphoproliferation, cell differentiation, migration, angiogenesis, and metastasis |
Aggressive tumor growth, high metastatic potential, poor prognosis |
STAT6 | Expressed in tumor tissue and endothelium | Overexpression associated with aggressive tumor growth, decreased survival in patients treated with methotrexate |
PRDM1 | Tumor suppressor gene, regulation of B-cell differentiation | Mutations associated with lymphomagenesis |
p14 ARF | Induction of cell growth arrest and stabilization of p53 protein |
Deletion or promoter methylation can induce tumor growth |
PTPRK | Regulation of cell contact and adhesion | Shorter survival in patients with loss of expression |
BCL-6 | Transcriptional repressor, oncogene, malignant transformation of germinal center B cells |
Overexpression associated with favorable prognosis |
CNS—central nervous system; ECM—extracellular matrix.