References of "Maweja, Sylvie"
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See detailOncological and surgical outcome after oncoplastic breast surgery
NIZET, Jean-Luc ULg; MAWEJA, Sylvie ULg; LAKOSI, Ferenc ULg et al

in Acta Chirurgica Belgica (2015), 115

BACKGROUND: Oncoplastic surgery combines breast-conserving treatment and plastic surgery techniques. The aim of the study was to identify breast and tumor-related characteristics that contribute to the ... [more ▼]

BACKGROUND: Oncoplastic surgery combines breast-conserving treatment and plastic surgery techniques. The aim of the study was to identify breast and tumor-related characteristics that contribute to the rate of complications and recurrence. METHODS: This retrospective study included 72 patients with a median follow-up of 32 months. For each patient, a comprehensive set of data was collected, including epidemiology, tumor characteristics, preoperative information, detailed pathology reports, radiotherapy treatment and type of surgical technique. The rate of complications, recurrence and survival were studied. RESULTS: Complete tumor removal was performed with clear margins in all patients but in 25 of them margins were less than 2 mm. One patient had local recurrence and another developed distant metastases. The study showed that the size of the margin was not predictive of recurrence as long as not positive; the greater the resection volume, the larger the excision margin. The resection size was the only factor influencing complications and no specific tumor-related factor significantly increased the complication rate. Surgical complications did not delay the initiation of chemotherapy and radiotherapy. CONCLUSIONS: This is the first oncoplastic study where both tumor and breast characteristics were analyzed using the most recent criteria of the literature. Oncoplastic surgery can be considered as oncologically safe. The resection size was the sole significant risk factor for postoperative complications. Complications after oncoplastic breast surgery did not differ neoadjuvant therapy. Long-term event-free survival was excellent (96% at 7 years). [less ▲]

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See detailAsporin Is a Fibroblast-Derived TGF-beta1 Inhibitor and a Tumor Suppressor Associated with Good Prognosis in Breast Cancer.
Maris, Pamela; Blomme, Arnaud; Palacios, Ana Perez et al

in PLoS medicine (2015), 12(9), 1001871

BACKGROUND: Breast cancer is a leading malignancy affecting the female population worldwide. Most morbidity is caused by metastases that remain incurable to date. TGF-beta1 has been identified as a key ... [more ▼]

BACKGROUND: Breast cancer is a leading malignancy affecting the female population worldwide. Most morbidity is caused by metastases that remain incurable to date. TGF-beta1 has been identified as a key driving force behind metastatic breast cancer, with promising therapeutic implications. METHODS AND FINDINGS: Employing immunohistochemistry (IHC) analysis, we report, to our knowledge for the first time, that asporin is overexpressed in the stroma of most human breast cancers and is not expressed in normal breast tissue. In vitro, asporin is secreted by breast fibroblasts upon exposure to conditioned medium from some but not all human breast cancer cells. While hormone receptor (HR) positive cells cause strong asporin expression, triple-negative breast cancer (TNBC) cells suppress it. Further, our findings show that soluble IL-1beta, secreted by TNBC cells, is responsible for inhibiting asporin in normal and cancer-associated fibroblasts. Using recombinant protein, as well as a synthetic peptide fragment, we demonstrate the ability of asporin to inhibit TGF-beta1-mediated SMAD2 phosphorylation, epithelial to mesenchymal transition, and stemness in breast cancer cells. In two in vivo murine models of TNBC, we observed that tumors expressing asporin exhibit significantly reduced growth (2-fold; p = 0.01) and metastatic properties (3-fold; p = 0.045). A retrospective IHC study performed on human breast carcinoma (n = 180) demonstrates that asporin expression is lowest in TNBC and HER2+ tumors, while HR+ tumors have significantly higher asporin expression (4-fold; p = 0.001). Assessment of asporin expression and patient outcome (n = 60; 10-y follow-up) shows that low protein levels in the primary breast lesion significantly delineate patients with bad outcome regardless of the tumor HR status (area under the curve = 0.87; 95% CI 0.78-0.96; p = 0.0001). Survival analysis, based on gene expression (n = 375; 25-y follow-up), confirmed that low asporin levels are associated with a reduced likelihood of survival (hazard ratio = 0.58; 95% CI 0.37-0.91; p = 0.017). Although these data highlight the potential of asporin to serve as a prognostic marker, confirmation of the clinical value would require a prospective study on a much larger patient cohort. CONCLUSIONS: Our data show that asporin is a stroma-derived inhibitor of TGF-beta1 and a tumor suppressor in breast cancer. High asporin expression is significantly associated with less aggressive tumors, stratifying patients according to the clinical outcome. Future pre-clinical studies should consider options for increasing asporin expression in TNBC as a promising strategy for targeted therapy. [less ▲]

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See detailIntérêts et limites de l'examen extemporané en pathologie thyroïdienne : Revue systématique de la littérature et évaluation fondée sur les épreuves
Stanciu-Pop, C; Pop, FC; THIRY, Albert ULg et al

in Revue Médicale de Liège (2015), 70(12), 638-643

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See detailA particular multiple endocrine neoplasia
Boccar, S; VROONEN, Laurent ULg; HAMOIR, Etienne ULg et al

in 23rd meeting of the Belgian Endocrine Society - Abstract book (2013, October 19)

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See detailUne néoplasie endocrinienne multiple particulière
Boccar, S; VROONEN, Laurent ULg; HAMOIR, Etienne ULg et al

in Annales d'Endocrinologie (2013, October), 74

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See detailLe cancer du sein chez la femme jeune
ANDRE, Chantal ULg; COLLIGNON, Joëlle ULg; RORIVE, Andrée ULg et al

in Revue Médicale de Liège (2011), 66(5-6), 397-399

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See detailAccelerated partial breast irradiation: state of the art
COUCKE, Philippe ULg; JANSEN, Nicolas ULg; JANVARY, Zsolt Levente ULg et al

in Belgian Journal of Medical Oncology [=BJMO] (2011), 5(1), 3-7

Accelerated partial breast irradiation can be applied by means of different techniques. It <br />offers an opportunity for reducing the treatment duration considerably and harbours the <br />potential for ... [more ▼]

Accelerated partial breast irradiation can be applied by means of different techniques. It <br />offers an opportunity for reducing the treatment duration considerably and harbours the <br />potential for less exposure of healthy tissue to higher radiation doses. However, evidence <br />issued from randomized trials is limited. European and American experts call our attention <br />to the potential dangers of widespread implementation of these techniques without any <br />long-term data on outcome and ask for complete information of patients on the potential <br />hazards and risks if accelerated partial breast irradiation is used instead of whole breast <br />irradiation. [less ▲]

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See detailMutations of calcium-sensing receptor gene: two novel mutations and overview of impact on calcium homeostasis
Livadariu, E.; Auriemma, R. S.; Rydlewski, C. et al

in European Journal of Endocrinology (2011)

Objective: Genetic disorders of calcium metabolism arise in a familial or sporadic setting. The calcium-sensing receptor (CaSR) plays a key role in maintaining calcium homeostasis and study of the CASR ... [more ▼]

Objective: Genetic disorders of calcium metabolism arise in a familial or sporadic setting. The calcium-sensing receptor (CaSR) plays a key role in maintaining calcium homeostasis and study of the CASR gene can be clinically useful in determining etiology and appropriate therapeutic approaches. We report two cases of novel CASR gene mutations that illustrate the varying clinical presentations and discuss these in terms of the current understanding of CaSR function. Patients and Methods: A 16 yr-old patient had mild hypercalcemia associated with low-normal urinary calcium excretion and normal-to-high parathyroid hormone (PTH) levels. Because of negative family history, familial hypocalciuric hypercalcemia (FHH) was originally excluded. The second patient was a 54 yr-old man with symptomatic hypocalcemia, hyperphosphatemia, low PTH, and mild hypercalciuria. Familial investigation revealed the same phenotype in the patient's sister. The coding region of the CaSR gene was sequenced in both probands and their available first-degree relatives. Results: The first patient had a novel heterozygous inactivating CASR mutation in exon 4, which predicted a p.A423K change; genetic analysis was negative in the parents. The second patient had a novel heterozygous activating CASR mutation in exon 6, which predicted a p.E556K change; the affected sister of the proband was also positive. Conclusions: We reported two novel heterozygous mutations of the CASR gene, an inactivating mutation in exon 4 and the first activating mutation reported to date in exon 6. These cases illustrate the importance of genetic testing of CASR gene to aid correct diagnosis and to assist in clinical management. [less ▲]

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See detailLa chirurgie oncoplastique du sein.
BOUS, Aurélie ULg; NARDELLA, Daniele ULg; MAWEJA, Sylvie ULg et al

in Revue Médicale de Liège (2011), 66(5-6), 341-50

Oncoplastic surgery combines large lumpectomy and defect remodeling by different plastic surgery methods. These procedures improve the cosmetic result after partial mastectomy and widens the possibilities ... [more ▼]

Oncoplastic surgery combines large lumpectomy and defect remodeling by different plastic surgery methods. These procedures improve the cosmetic result after partial mastectomy and widens the possibilities for conservative treatment. Different techniques are used from simple glandular remodeling to more difficult techniques for breast plasties with or without simultaneous controlateral symetrisation procedure. The surgical option depends especially on the ratio between the volume of the tumor and the volume of the breast and the position of the tumor. This more effective conservative treatment facilitates also postoperative radiotherapy, reduces the sequellae and the psychological impact of breast cancer treatment. [less ▲]

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See detailAdjuvant MIBGI131 therapy in a young patients with aggressive paraganglioma
VROONEN, Laurent ULg; MAWEJA, Sylvie ULg; LILET, Henri ULg et al

in Annales d'Endocrinologie - 28ème congrès de la société Française d'Endocrinologie (2011)

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See detailTraitements ciblés dans le cancer du sein
JERUSALEM, Guy ULg; COLLIGNON, Joëlle ULg; RORIVE, Andrée ULg et al

in Revue Médicale de Liège (2011), 66(5-6), 379-384

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See detailChimiothérapie et cancer du sein
COLLIGNON, Joëlle ULg; RORIVE, Andrée ULg; MARTIN, M. et al

in Revue Médicale de Liège (2011), 66(5-6), 372-378

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See detailDeux nouvelles mutations dans le gène du récepteur du calcium (CASR) entraînant respectivement une hypo- et une hypercalcémie
Thonnard, Anne-Sophie ULg; Livadariu, Elena ULg; Rydlewski, C. et al

in Annales d'Endocrinologie (2010, September), 71(5), 367

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See detailDeux nouvelles mutations dans le gène du récepteur du calcium (CASR) entraînant respectivement une hypo- et une hypercalcémie
Thonnard, Anne-Sophie ULg; Livadariu, E.; Rydlewski, C. et al

in 27ème Congrès de la Société Française d'Endocrinologie - Deauville, 29 septembre - 2 octobre 2010 (2010, September)

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See detailL'observance au traitement de longue durée : le cas particulier de l'hormonothérapie adjuvante du cancer du sein
Bleret, Valerie ULg; Collignon, Joëlle ULg; Coucke, Philippe ULg et al

in Revue Médicale de Liège (2010), 65(5-6), 405-408

L'objectif de l'hormonothérapie adjuvante dans le cancer du sein est d'atteindre en pratique quotidiennee, une efficacité comparable à celle obtenue au cours des études cliniques. Malgré l'efficacité ... [more ▼]

L'objectif de l'hormonothérapie adjuvante dans le cancer du sein est d'atteindre en pratique quotidiennee, une efficacité comparable à celle obtenue au cours des études cliniques. Malgré l'efficacité démontrée de l'hormonothérapie, la compliance constitue un défi majeur et un problème multidimensionnel. Une meilleure compréhension des raisons de cette non-compliance aiderait à mieux identifier les patientes à risque et à développer des interventions capables d'améliorer l'adhésion à l'hormonothérapie adjuvante.C'est dans ce but que nous avons entrepris une revue de la littérature des six dernières années (Pub Med 2003-2006). [less ▲]

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See detailScarless cholecystectomy: laparoscopic surgery by unique umbilical incision
Kohnen, Laurent ULg; Coimbra Marques, Carla ULg; De Roover, Arnaud ULg et al

in Revue Médicale de Liège (2010), 65(10), 543-4

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See detailConcepts actuels de l'hyperaldostéronisme primaire
Vroonen, Laurent ULg; Krzesinski, Jean-Marie ULg; Hamoir, Etienne ULg et al

in Revue Médicale de Liège (2010), 65(10), 583-587

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See detailANTICORPS MONOCLONAUX ET CANCER DU SEIN: Actualités thérapeutiques
Collignon, Joëlle ULg; Gennigens, Christine ULg; Rorive, Andrée ULg et al

in Revue Médicale de Liège (2009), 64(5-6), 279-83

About 9,500 new breast cancers are diagnosed in Belgium every year. Improvement of our knowledge of altered molecular events leading to the proliferation of tumor cells has resulted in the development of ... [more ▼]

About 9,500 new breast cancers are diagnosed in Belgium every year. Improvement of our knowledge of altered molecular events leading to the proliferation of tumor cells has resulted in the development of targeted therapies in subgroups of cancers. One of the first validation of targeted therapy is the anti-HER-2 monoclonal antibody trastuzumab (Herceptin) in patients with overexpression of human epidermal growth factor receptor type 2 (HER2) occurring in 20 to 25% of invasive breast carcinoma. Trastuzumab binds the extracellular juxtamembrane domain and is only active in tumor with HER2 gene amplification detected by fluorescence in situ hybridization (FISH). The results from randomized trials have rapidly lead to the approvement of the drug in the metastatic and then in the adjuvant setting. Another targeted therapy, also approved in the treatment of breast cancer, is the monoclonal antibody bevacizumab with an anti-VEGF (Vascular Endothelial Growth Factor) activity. We will review the benefit of these targeted therapies in breast cancer and their role in the treatment of breast cancer. [less ▲]

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See detailPseudoanevrisme de l'artere gastrique gauche.
Honore, Charles ULg; Bruyere, Pierre-Julien ULg; Maweja, Sylvie ULg et al

in Journal de Chirurgie (2009), 146(4), 413-5

We report the case of a 65-year-old man admitted for an upper-GI hemorrhage. A CT scan performed with vascular reconstructions demonstrated a pseudoaneurysm of the left gastric artery. Proximal vascular ... [more ▼]

We report the case of a 65-year-old man admitted for an upper-GI hemorrhage. A CT scan performed with vascular reconstructions demonstrated a pseudoaneurysm of the left gastric artery. Proximal vascular control of the celiac axis was obtained by balloon occlusion with a Fogarty balloon inserted retrograde via the femoral artery: the pseudoaneurysm was then successfully controlled with direct suture. [less ▲]

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