References of "Kridelka, Frédéric"
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See detailA specific immune and lymphatic profile characterizes the pre-metastatic state of the sentinel lymph node in patients with early cervical cancer
Balsat, Cédric ULg; Blacher, Silvia ULg; Herfs, Michael ULg et al

in Oncoimmunology (2017), 6(2), 1265718

The lymph node (LN) pre-metastatic niche is faintly characterized in lymphophilic human neoplasia, although LN metastasis is considered as the strongest prognostic marker of patient survival. Due to its ... [more ▼]

The lymph node (LN) pre-metastatic niche is faintly characterized in lymphophilic human neoplasia, although LN metastasis is considered as the strongest prognostic marker of patient survival. Due to its specific dissemination through a complex bilateral pelvic lymphatic system, early cervical cancer is a relevant candidate for investigating the early nodal metastatic process. In the present study, we analyzed in-depth both the lymphatic vasculature and the immune climate of pre-metastatic sentinel LN (SLN), in 48 cases of FIGO stage IB1 cervical neoplasms. An original digital image analysis methodology was used to objectively determine whole slide densities and spatial distributions of immunostained structures. We observed a marked increase in lymphatic vessel density (LVD) and a specific capsular and subcapsular distribution in pre-metastatic SLN when compared with non-sentinel counterparts. Such features persisted in the presence of nodal metastatic colonization. The inflammatory profile attested by CD8+, Foxp3, CD20 and PD-1expression was also significantly increased in pre-metastatic SLN. Remarkably, the densities of CD20+ B cells and PD-1 expressing germinal centers were positively correlated with LVD. All together, these data strongly support the existence of a pre-metastatic dialog between the primary tumor and the first nodal relay. Both lymphatic and immune responses contribute to the elaboration of a specific pre-metastatic microenvironment in human SLN. Moreover, this work provides evidence that, in the context of early cervical cancer, a pre-metastatic lymphangiogenesis occurs within the SLN (pre-metastatic niche) and is associated with a specific humoral immune response. [less ▲]

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See detailModeling pre-metastatic lymphvascular niche in the mouse ear sponge assay.
Garcia-Caballero, Melissa; Van De Velde, Maureen ULg; Blacher, Silvia ULg et al

in Scientific Reports (2017), 7

Lymphangiogenesis, the formation of new lymphatic vessels, occurs in primary tumors and in draining lymph nodes leading to pre-metastatic niche formation. Reliable in vivo models are becoming instrumental ... [more ▼]

Lymphangiogenesis, the formation of new lymphatic vessels, occurs in primary tumors and in draining lymph nodes leading to pre-metastatic niche formation. Reliable in vivo models are becoming instrumental for investigating alterations occurring in lymph nodes before tumor cell arrival. In this study, we demonstrate that B16F10 melanoma cell encapsulation in a biomaterial, and implantation in the mouse ear, prevents their rapid lymphatic spread observed when cells are directly injected in the ear. Vascular remodeling in lymph nodes was detected two weeks after sponge implantation, while their colonization by tumor cells occurred two weeks later. In this model, a huge lymphangiogenic response was induced in primary tumors and in pre-metastatic and metastatic lymph nodes. In control lymph nodes, lymphatic vessels were confined to the cortex. In contrast, an enlargement and expansion of lymphatic vessels towards paracortical and medullar areas occurred in pre-metastatic lymph nodes. We designed an original computerized-assisted quantification method to examine the lymphatic vessel structure and the spatial distribution. This new reliable and accurate model is suitable for in vivo studies of lymphangiogenesis, holds promise for unraveling the mechanisms underlying lymphatic metastases and pre-metastatic niche formation in lymph nodes, and will provide new tools for drug testing. [less ▲]

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See detailA reversible posterior leucoencephalopathy syndrome including blindness caused by preeclampsia.
Vandenbossche, Gautier; Maquet, J.; Vroonen, Philippe et al

in Facts, Views and Vision in Obgyn (2016), 8(3), 173-177

Complications of (pre)eclampsia may involve multiple systems and organs. Neurological symptoms may occur. Visual symptoms concern up to 25% the of patients with severe preeclampsia and 50% of the patients ... [more ▼]

Complications of (pre)eclampsia may involve multiple systems and organs. Neurological symptoms may occur. Visual symptoms concern up to 25% the of patients with severe preeclampsia and 50% of the patients with eclampsia. An uncommon effect of severe preeclampsia is sudden blindness. Blindness may be part of a clinical and radiological presentation named Posterior Reversible Encephalopathy Syndrome (PRES). PRES may lead to permanent neurological deficit, recurrences or death. We report the case of a 24-year-old Caucasian patient, gravida 5 para 2 who developed preeclampsia and PRES complicated with blindness at 32 weeks of gestation. Optimal care allowed visual symptoms to resolve within 24 hours and a favourable maternal outcome and no long- term sequelae. We describe different causes and manifestations of PRES and highlight the need for immediate care in order to optimize the chance of symptoms reversibility. [less ▲]

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See detailPrenatal diagnosis of a terminal chromosome 1 (q42-q44) deletion : original case report and review of the literature
VAN LINTHOUT, Christine ULg; EMONARD, Violaine ULg; GATOT, Jean-Stéphane ULg et al

in Facts, Views and Vision in Obgyn (2016), 8(2), 101-103

Terminal chromosome 1q deletion is rarely reported but causes typical malformations that have been well described in childhood. Clinical features include facial dysmorphy, growth and/or psychomotor ... [more ▼]

Terminal chromosome 1q deletion is rarely reported but causes typical malformations that have been well described in childhood. Clinical features include facial dysmorphy, growth and/or psychomotor retardation, brain agenesis or hypoplasia of the corpus callosum, epilepsy and occasional urogenital or cardiac malformations. The diagnosis of this condition is usually made at birth. The rare cases of antenatal diagnosis were based on microcephaly and growth retardation. In the present case, the foetus presented with an hypoplasia of the corpus callosum, a dysmorphic profile and a single umbilical artery. The foetal echocardiography suggested a noncompaction of the left ventricular myocardium. No microcephaly or growth retardation were noted. We compare our antenatal findings to those described in the literature with the aim to better define the antenatal phenotype of the terminal chromosome 1 deletion syndrome. [less ▲]

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See detailCirculating microRNA-based screening tool for breast cancer
Freres, Pierre ULg; Wenric, Stéphane ULg; Boukerroucha, Meriem et al

in Oncotarget (2015)

Circulating microRNAs (miRNAs) are increasingly recognized as powerful biomarkers in several pathologies, including breast cancer. Here, their plasmatic levels were measured to be used as an alternative ... [more ▼]

Circulating microRNAs (miRNAs) are increasingly recognized as powerful biomarkers in several pathologies, including breast cancer. Here, their plasmatic levels were measured to be used as an alternative screening procedure to mammography for breast cancer diagnosis. A plasma miRNA profile was determined by RT-qPCR in a cohort of 378 women. A diagnostic model was designed based on the expression of 8 miRNAs measured first in a profiling cohort composed of 41 primary breast cancers and 45 controls, and further validated in diverse cohorts composed of 108 primary breast cancers, 88 controls, 35 breast cancers in remission, 31 metastatic breast cancers and 30 gynecologic tumors. A receiver operating characteristic curve derived from the 8-miRNA random forest based diagnostic tool exhibited an area under the curve of 0.81. The accuracy of the diagnostic tool remained unchanged considering age and tumor stage. The miRNA signature correctly identified patients with metastatic breast cancer. The use of the classification model on cohorts of patients with breast cancers in remission and with gynecologic cancers yielded prediction distributions similar to that of the control group. Using a multivariate supervised learning method and a set of 8 circulating miRNAs, we designed an accurate, minimally invasive screening tool for breast cancer. [less ▲]

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See detailREGISTRE BELGE ET CENTRES DE RÉFÉRENCE POUR LES MALADIES TROPHOBLASTIQUES GESTATIONNELLES
DELCOMINETTE, Sarah ULg; TIMMERMANS, Marie ULg; DELBECQUE, Katty ULg et al

in Revue Médicale de Liège (2015), 70(11), 550-556

Gestational trophoblastic diseases include placental pathologies comprising fertilization abnormalities (hydatidiform moles) and malignant lesions (choriocarcinoma, placental site trophoblastic tumor and ... [more ▼]

Gestational trophoblastic diseases include placental pathologies comprising fertilization abnormalities (hydatidiform moles) and malignant lesions (choriocarcinoma, placental site trophoblastic tumor and epithelioid trophoblastic tumor). Due to their low incidence and heterogeneity, their diagnosis, management and treatment are not always optimal. Following the example of other European countries, a national registration system with two reference centers has been set up to guide physicians and patients and to propose individualized management. The centers offer their expertise through a systematic centralised pathology review by a panel of experts. HCG values are plotted in regression curves. In case of gestational trophoblastic neoplasia, an imaging work-up is proposed, from which the FIGO score and stage are derived and will guide the choice of treatment. Belgian centers offer a multidisciplinary approach, in partnership with the referent physician. More information for practitioners and patients is available on a web site: www.mole-chorio-bgog.eu, which also harbours a forum of discussion. [less ▲]

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See detailA Simple Laparoscopic Procedure to Restore a Normal Vaginal Length After Colpohysterectomy With Large Upper Colpectomy for Cervical and/or Vaginal Neoplasia.
Leblanc, Eric; Bresson, L.; Merlot, B. et al

in Journal of Minimally Invasive Gynecology (2015)

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See detailLaparoscopy and endometrial cancer
KRIDELKA, Frédéric ULg; GOFFIN, Frédéric ULg; Leblanc, Eric et al

in Minimally Invasive surgery (2015)

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See detailUnique recurrence patterns of cervical intraepithelial neoplasia following excision of the squamo-columnar junction.
Herfs, Michael ULg; SOMJA, Joan ULg; Howitt, Brooke E. et al

in International journal of cancer. Journal international du cancer (2015), 136

Recent studies have identified a putative cell of origin for cervical intraepithelial neoplasia (CIN) and cervical cancer at the squamo-columnar junction (SCJ) and suggest that these cells may not ... [more ▼]

Recent studies have identified a putative cell of origin for cervical intraepithelial neoplasia (CIN) and cervical cancer at the squamo-columnar junction (SCJ) and suggest that these cells may not regenerate following excision (LEEP). This study addressed the impact of SCJ excision on the temporal dynamics, histologic and viral (HPV) characteristics of recurrent CIN. One hundred thirty one consecutive patients treated by excision and attending follow-up visits were enrolled. We compared recurrent and initial CIN with attention to excision margins, timing of recurrence, CIN grade, HPV types, p16 immunophenotype, and SCJ immunophenotype. During the follow-up period (up to four years), sixteen (12.2%) recurrences were identified. Four (25%) were identified at the first follow-up visit, closely resembled the initial CIN 2/3 in grade and HPV type, and were typically SCJ marker positive [SCJ(+)], suggesting non-excised (residual) disease. Twelve (75%) manifested after the first postoperative visit and all were in the ectocervix or in mature metaplastic epithelium. All of the 12 delayed recurrences were classified as CIN 1 and were SCJ (-). Nine of 11 SCJ (-) recurrences (82%) followed regressed spontaneously. Taken together, these results show that new lesions developing from any HPV infection are delayed and occur within the ectocervix or metaplastic epithelium. This dramatically lower risk of CIN 2/3 following successful SCJ excision suggests that removal of the SCJ could be a critical variable in reducing the risk of subsequent CIN 2/3 and cervical cancer. (c) 2014 Wiley Periodicals, Inc. [less ▲]

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See detailTumor Angiogenesis and Lymphangiogenesis: Microenvironmental Soil for Tumor Progression and Metastatic Dissemination
Paupert, Jenny ULg; Van De Velde, Maureen ULg; Kridelka, Frédéric ULg et al

in Feige, Jean-Jacques; Pagès, Gilles; Soncin, Fabrice (Eds.) Molecular Mechanisms of Angiogenesis (2014)

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See detailNational Belgian registration of gestational trophoblastic disease - a Belgian gynaecological oncology group (BGOG) initiative
Han, Sileny; Noel, Jean-Christophe; Moerman, Philippe et al

Poster (2014)

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See detailLa menace d'accouchement premature. Prise en charge dans un service universitaire de grossesses a risque : evaluation de la pratique clinique comparee aux recommandations internationals.
Johnson, S.; Kridelka, Frédéric ULg; Nisolle, Michelle ULg et al

in Revue medicale de Liege (2014), 69(12), 658-62

Premature birth poses a real problem of public health. As the principal cause of foetal ill-health and perinatal mortality, it generates high healthcare costs. By seeking to prevent early labour and to ... [more ▼]

Premature birth poses a real problem of public health. As the principal cause of foetal ill-health and perinatal mortality, it generates high healthcare costs. By seeking to prevent early labour and to deal with its causes, a good obstetrical practice can reduce its negative impact, both medical and financial, on society. This article describes the results of a study of threatened preterm delivery admissions at the Citadelle hospital in Liege during the year 2012. The findings are compared to international guidelines with a view to identify aspects that could be improved. [less ▲]

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See detailImproved computer-assisted analysis of the global lymphatic network in human cervical tissues.
Balsat, Cédric ULg; Signolle, Nicolas; GOFFIN, Frédéric ULg et al

in Modern Pathology : An Official Journal of the United States & Canadian Academy of Pathology, Inc (2014), 27(6), 887-98

Lymphatic dissemination is a key event in cervical cancer progression and related tumor lymphatic markers are viewed as promising prognostic factor of nodal extension. However, validating such parameters ... [more ▼]

Lymphatic dissemination is a key event in cervical cancer progression and related tumor lymphatic markers are viewed as promising prognostic factor of nodal extension. However, validating such parameters requires an objective characterization of the lymphatic vasculature. Here, we performed a global analysis of the lymphatic network using a new computerized method applied on whole uterine cervical digital images. Sixty-eight cases of cervical neoplasia (12 CIN3, 10 FIGO stage 1A and 46 stage IB1) and 10 cases of normal cervical tissue were reacted with antibodies raised against D2-40, D2-40/p16 and D2-40/Ki67. Immunostained structures were automatically detected on whole slides. The lymphatic vessel density (D2-40), proliferating lymphatic vessel density (D2-40/ki67) and spatial lymphatic distribution in respect to the adjacent epithelium were assessed from normal cervix to early cervical cancer and correlated with lymphovascular space invasion and lymph node status. Prominent lymphatic vessel density and proliferating lymphatic vessel density are detected under the transformation zone of benign cervix and no further increase is noted during cancer progression. Notably, a shift of lymphatic vessel distribution toward the neoplastic edges is detected. In IB1 cervical cancer, although intra- and peritumoral lymphatic vessel density are neither correlated with lymphovascular space invasion nor with lymph node metastasis, a specific spatial distribution with more lymphatic vessels in the vicinity of tumor edges is predictive of lymphatic dissemination. Herein, we provide a new computerized method suitable for an innovative detailed analysis of the lymphatic network. We show that the transformation zone of the benign cervix acts as a baseline lymphangiogenic niche before the initiation of neoplastic process. During cancer progression, this specific microenvironment is maintained with lymphatic vessels even in closer vicinity to tumor cells.Modern Pathology advance online publication, 6 December 2013; doi:10.1038/modpathol.2013.195. [less ▲]

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