Caroline Bret

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Although numerous studies have underlined the role of histone deacetylases (HDAC) in breast physiology and tumorigenesis, little is known on the particular contribution of the various classes of HDACs in these processes. Using estrogen receptor-alpha (ERalpha)-positive MCF-7 breast cancer cells, the effects of MC1575 and MC1568, two novel class II-specific(More)
Methacarn and RCL2, a new noncrosslinking fixative, were compared to formalin-fixed or frozen tissue samples of the same invasive breast carcinoma and were evaluated for their effects on tissue morphology and immunohistochemistry as well as DNA and RNA integrity. The histomorphology of methacarn- or RCL2-fixed paraffin-embedded tumors was similar to that(More)
The sulfation pattern of heparan sulfate chains influences signaling events mediated by heparan sulfate proteoglycans located on cell surface. SULF1 and SULF2 are two endosulfatases able to cleave specific 6-O sulfate groups within the heparan chains. Their action can modulate signaling processes, many of which with key relevance for cancer development and(More)
Generation of B and plasma cells involves several organs with a necessary cell trafficking between them. A detailed phenotypic characterization of four circulating B-cell subsets (immature-, naïve-, memory- B-lymphocytes and plasma cells) of 106 healthy adults was realized by multiparametric flow cytometry. We show that CD10, CD27 and CD38 is the minimal(More)
RIP140 is a transcriptional coregulator, (also known as NRIP1), which finely tunes the activity of various transcription factors and plays very important physiological roles. Noticeably, the RIP140 gene has been implicated in the control of energy expenditure, behavior, cognition, mammary gland development and intestinal homeostasis. RIP140 is also involved(More)
Diffuse large B-cell lymphoma (DLBCL) is the most frequent type of non-Hodgkin lymphoma. DLBCL is a molecularly heterogeneous disease, and the addition of Rituximab to combination chemotherapy with cyclophosphamide, doxorubicin, vincristine and prednisone (CHOP) has significantly improved the survival of patients. Gene expression profiling studies revealed(More)
OBJECTIVE The ADAM (a disintegrin and metalloproteinases) and the related ADAMTS (a disintegrin and metalloproteinases with thrombospondin) motifs metalloproteinases are membrane-anchored and secreted proteins exhibiting key roles in mediating cell adhesion, proteolytic shedding, and cell signaling. Dysregulation of these proteins has been observed in some(More)
A nalysis of gene expression in specific tumor cells is a valuable approach to understanding the molecular events that lead to tumor development. This approach has usually been performed on whole tumor extracts, therefore not allowing the molecular analysis of specific cell populations. Laser-capture microdissection (LCM) was developed recently to collect(More)
Syndecan-1 is a proteoglycan that concentrates heparin-binding factors on the surface of multiple myeloma cells, and probably plays a major role in multiple myeloma biology. As heparan sulphate and chondroitin sulphate are the bioactive components of syndecan-1, we analysed the signature of genes encoding 100 proteins involved in synthesis of these chains,(More)