2008
DOI: 10.1007/s10014-008-0232-x
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Immunohistochemical analysis of adhesion molecules and matrix metalloproteinases in malignant CNS lymphomas: a study comparing primary CNS malignant and CNS intravascular lymphomas

Abstract: Two distinct forms of malignant lymphomas can invade the central nervous system (CNS). Although primary CNS malignant lymphomas (PCNSMLs) invade the brain parenchyma, intravascular lymphomas (IVLs) form tumor cell aggregates in the vasculature and produce stroke-like symptoms and cognitive impairment. Although the tumor cells are mostly of B-cell origin in both types of lymphoma, their biological behavior is different, and the detailed mechanism(s) underlying this difference are not well understood. We studied… Show more

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Cited by 45 publications
(30 citation statements)
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“…32,33 The expression of certain genes 34,35 and adhesion molecules on the surface of non-Hodgkin's lymphoma cells 36,37 has been associated with a tendency towards extranodal involvement, tumor aggressiveness, and worse outcomes. These observations provide a biological hypothesis accounting for the high rates of CNS involvement seen at diagnosis and relapse in our cohort of patients.…”
Section: Clinical Factor Chop (N=12) R-chop (N=8)mentioning
confidence: 99%
“…32,33 The expression of certain genes 34,35 and adhesion molecules on the surface of non-Hodgkin's lymphoma cells 36,37 has been associated with a tendency towards extranodal involvement, tumor aggressiveness, and worse outcomes. These observations provide a biological hypothesis accounting for the high rates of CNS involvement seen at diagnosis and relapse in our cohort of patients.…”
Section: Clinical Factor Chop (N=12) R-chop (N=8)mentioning
confidence: 99%
“…Our patient received six cycles of RCHOP chemotherapy but he had short survival as later during the course of treatment he was diagnosed with CNS lymphoma on CT scan. The mechanism of lymphoma dissemination in CNS remains unclear but the role of adhesion molecules, chemokines, and matrix metalloproteinases in tumor invasion and metastasis is getting recognized . The expression of certain genes and adhesion molecules on the surface of NHL cells is linked with the tendency toward extranodal involvement, tumor aggressiveness, and worst outcomes.…”
Section: Discussionmentioning
confidence: 79%
“…Some challenge the notion of IVLBCL concomitantly involving the CNS extravascularly due to the fact that they are thought to have absent surface adhesion molecules CD29, CD54 (ICAM-1), and CD11a, preventing them from being able to cross small CNS vessels to form perivascular or extravascular infiltrates [28]. However, a biologic explanation for the predilection for IVLBCL to involve the CNS with an extravascular growth pattern could be due to the fact that as veno-occlusive events occur secondary to small vessel involvement by IVLBCL, the permeability of the blood-brain-barrier is altered [29] such that it allows for passive diffusion of neoplastic cells across vessels into the brain parenchyma to form extravascular infiltrates.…”
Section: Discussionmentioning
confidence: 99%