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Verberckmoes B, De Vos T, Maelegheer K, Ali-Risasi C, Sturtewagen Y, Praet M, Vanden Broeck D, Padalko E. Evaluation of the applicability of internal controls on self-collected samples for high-risk human papillomavirus is needed. BMC Womens Health 2023; 23:635. [PMID: 38012591 PMCID: PMC10683318 DOI: 10.1186/s12905-023-02691-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 10/06/2023] [Indexed: 11/29/2023] Open
Abstract
BACKGROUND Self-collection of cervical samples to detect high-risk human papillomavirus (hr-HPV) is a trending topic in primary cervical cancer screening. This study evaluates the applicability of a self-sampling device to routine molecular procedures for hr-HPV detection. METHODS In a primary health care facility in Kinshasa, Congo, 187 self-collected samples (Evalyn Brush) were gathered and sent to Ghent University Hospital (UZ Ghent) and Algemeen Medisch Labo (AML) in Belgium where routine tests for hr-HPV were applied (Abbott RealTime hr-HPV and qPCR (E6/E7), respectively). Sample type effect was evaluated by comparing the internal control (IC) between the self-collected samples and routine, clinician-taken samples randomly selected from the UZ Ghent archive. RESULTS In UZ Ghent an error was encountered in 9.1% (17/187) of self-collected samples due to a lack of IC signal. The hr-HPV prevalence in the remaining 170 samples was 18,8%. Comparing IC results between the self-collected and clinician-collected groups, a significant difference (p < 0,001) was found, with higher IC signals in the clinician-collected group. In AML, an error was encountered in 17.6% (33/187) of samples, including 16/17 of the UZ Ghent. The remaining sample with IC error gave a negative result in AML. Among the 154 samples without IC error at AML, a correlation of 90% was seen between both laboratories with a 77% negativity rate. CONCLUSION Testing the self-collected specimens by 2 routine hr-HPV tests gave a high IC error rate (9.1-17.6%). A possible solution would be to differentiate cut-offs for IC values depending on sample type, as currently used cut-offs are set for clinician-taken samples.
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Affiliation(s)
- Bo Verberckmoes
- Department of Public Health and Primary Care, Ghent University, International Centre for Reproductive Health (ICRH), Corneel Heymanslaan 10, Ghent, 9000, Belgium.
- Department of Obstetrics and Gynaecology, Ghent University Hospital, Corneel Heymanslaan 10, Ghent, 9000, Belgium.
| | - Tamara De Vos
- Department of Diagnostic Sciences, Ghent University, Corneel Heymanslaan 10, Ghent, 9000, Belgium
| | - Karel Maelegheer
- Algemeen Ziekenhuis Sint-Lucas Brugge, Sint-Lucaslaan 29, Brugge, 8310, Belgium
| | - Catherine Ali-Risasi
- Department of Clinical Biology, General Provincial Hospital of Kinshasa, Avenue Colonel Ebeya 169, Kinshasa, Democratic Republic of Congo
| | - Yolande Sturtewagen
- Department of Diagnostic Sciences, Ghent University, Corneel Heymanslaan 10, Ghent, 9000, Belgium
| | - Marleen Praet
- Department of Diagnostic Sciences, Ghent University, Corneel Heymanslaan 10, Ghent, 9000, Belgium
| | - Davy Vanden Broeck
- Department of Public Health and Primary Care, Ghent University, International Centre for Reproductive Health (ICRH), Corneel Heymanslaan 10, Ghent, 9000, Belgium
- Laboratory of Molecular Pathology, Algemeen Medisch Labo, Antwerp, Belgium
| | - Elizaveta Padalko
- Department of Diagnostic Sciences, Ghent University, Corneel Heymanslaan 10, Ghent, 9000, Belgium
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Schreurs G, Maudsley S, Nast C, Praet M, Da Silva Fernandes S, Boor P, D'Haese P, De Broe ME, Vervaet BA. Chronic dehydration induces injury pathways in rats, but does not mimic histopathology of chronic interstitial nephritis in agricultural communities. Sci Rep 2023; 13:18119. [PMID: 37872220 PMCID: PMC10593944 DOI: 10.1038/s41598-023-43567-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 09/26/2023] [Indexed: 10/25/2023] Open
Abstract
CINAC-patients present renal proximal tubular cell lysosomal lesions which are also observed in patients experiencing calcineurin inhibitor (CNI) nephrotoxicity, suggesting that CINAC is a toxin-induced nephropathy. An alternative hypothesis advocates chronic dehydration as a major etiological factor for CINAC. Here, we evaluated histological and molecular changes in dehydrated versus toxin exposed rats. Wistar rats were divided in 3 groups. Group 1 (n = 6) had free access to drinking water (control group). Group 2 (n = 8) was water deprived for 10 h per 24 h, 5 days/week and placed in an incubator (37 °C) for 30 min/h during water deprivation. Group 3 (n = 8) underwent daily oral gavage with cyclosporine (40 mg/kg body weight). After 28 days, renal function, histopathology and proteomic signatures were analysed. Cyclosporine-treated rats developed focal regions of atrophic proximal tubules with associated tubulo-interstitial fibrosis. PASM staining revealed enlarged argyrophilic granules in affected proximal tubules, identified as lysosomes by immunofluorescent staining. Electron microscopy confirmed the enlarged and dysmorphic phenotype of the lysosomes. Overall, these kidney lesions resemble those that have been previously documented in farmers with CINAC. Dehydration resulted in none of the above histopathological features. Proteomic analysis revealed that dehydration and cyclosporine both induce injury pathways, yet of a clear distinct nature with a signature of toxicity only for the cyclosporine group. In conclusion, both cyclosporine and dehydration are injurious to the kidney. However, dehydration alone does not result in kidney histopathology as observed in CINAC patients, whereas cyclosporine administration does. The histopathological analogy between CINAC and calcineurin inhibitor nephrotoxicity in rats and humans supports the involvement of an as-yet-unidentified environmental toxin in CINAC etiology.
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Affiliation(s)
- Gerd Schreurs
- Laboratory of Pathophysiology, University of Antwerp, Universiteitsplein 1, 2610, Antwerp, Belgium
| | - Stuart Maudsley
- Receptor Biology Lab, Department of Biomedical Science, University of Antwerp, Antwerp, Belgium
| | | | - Marleen Praet
- Department of Pathology, Ghent University Hospital, Ghent, Belgium
| | | | - Peter Boor
- Institute of Pathology, Electron Microscopy Facility and Division of Nephrology and Immunology, RWTH Aachen University Hospital, Aachen, Germany
| | - Patrick D'Haese
- Laboratory of Pathophysiology, University of Antwerp, Universiteitsplein 1, 2610, Antwerp, Belgium
| | - Marc E De Broe
- Laboratory of Pathophysiology, University of Antwerp, Universiteitsplein 1, 2610, Antwerp, Belgium
| | - Benjamin A Vervaet
- Laboratory of Pathophysiology, University of Antwerp, Universiteitsplein 1, 2610, Antwerp, Belgium.
- Institute of Pathology, RWTH Aachen University Hospital, Aachen, Germany.
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Dhillon SK, Chung PYJ, Padalko E, Praet M, Pereira AR, Redzic N, Vanden Broeck D, Arbyn M. Intra- and interlaboratory reproducibility of the RIATOL qPCR HPV genotyping assay. J Med Virol 2023; 95:e29093. [PMID: 37702556 DOI: 10.1002/jmv.29093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 08/28/2023] [Accepted: 08/31/2023] [Indexed: 09/14/2023]
Abstract
The implementation of cervical screening based on human papillomavirus (HPV) continues to progress rapidly across countries. Evidence has shown that assays detecting high-risk human papillomavirus (hrHPV) deoxyribonucleic acid (DNA) are more effective than cytology-based screening. Validation of new hrHPV DNA assays requires both noninferior clinical accuracy compared to a standard comparator for cervical precancer and good reproducibility. This study builds upon previous diagnostic accuracy assessments of the RIATOL HPV genotyping qPCR assay and aims to evaluate the international validation criteria for reproducibility. The intra- and interreproducibility of the RIATOL-qPCR assay were assessed using 550 remnant cervical cell material from the cytology archive of the National Reference Center for HPV in Belgium. Specimens were collected in the context of cervical cancer screening and tested in two different laboratories. The international reproducibility criteria include the lower bound of 95% confidence interval of the intra- and interlaboratory agreement regarding the detection of hrHPV DNA exceeding 87% with kappa ≥0.50. The RIATOL-qPCR assay demonstrated excellent intralaboratory reproducibility, achieving an overall agreement of 98.2 (95% CI 96.6-99.1%) and a kappa of 0.96. Interlaboratory testing showed an overall agreement of 98.5 (95% CI 97.1-99.4%) with a kappa of 0.97. The RIATOL-qPCR assay fulfills the third criterion for HPV test reproducibility requirement for use in cervical cancer screening.
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Affiliation(s)
- Sharonjit K Dhillon
- Unit of Cancer Epidemiology/Belgian Cancer Centre, Scientific Institute of Public Health, Brussels, Belgium
| | - Pui Yan Jenny Chung
- Unit of Cancer Epidemiology/Belgian Cancer Centre, Scientific Institute of Public Health, Brussels, Belgium
| | - Elizaveta Padalko
- Department of Medical Microbiology, Ghent University Hospital, Ghent, Belgium
- Department of Diagnostics Sciences, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - Marleen Praet
- Department of Pathological Anatomy, University of Ghent, Ghent, Belgium
| | - Ana Rita Pereira
- Laboratory of Molecular Pathology, AML Sonic Healthcare, Antwerp, Belgium
| | - Nina Redzic
- Laboratory of Molecular Pathology, AML Sonic Healthcare, Antwerp, Belgium
- AMBIOR, Laboratory for Cell Biology & Histology, University of Antwerp, Antwerp, Belgium
| | - Davy Vanden Broeck
- Laboratory of Molecular Pathology, AML Sonic Healthcare, Antwerp, Belgium
- AMBIOR, Laboratory for Cell Biology & Histology, University of Antwerp, Antwerp, Belgium
- National Reference Centre for HPV, Brussels, Belgium
- International Centre for Reproductive Health, Ghent University, Ghent, Belgium
| | - Marc Arbyn
- Unit of Cancer Epidemiology/Belgian Cancer Centre, Scientific Institute of Public Health, Brussels, Belgium
- Department of Human Structure and Repair, Faculty of Medicine and Health Sciences, University Ghent, Ghent, Belgium
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Deleersnijder D, Laurens W, De Meester J, Cleenders E, Dendooven A, Lerut E, De Vriese AS, Dejagere T, Helbert M, Hellemans R, Koshy P, Maes B, Pipeleers L, Van Craenenbroeck AH, Van Laecke S, Vande Walle J, Couttenye MM, Meeus G, Sprangers B, De Rycke A, Bogaert AM, Woestenburg A, Denys B, Maes B, Peeters D, Vanbelleghem H, Donck J, Scharpé J, De Clippeleir N, Colson A, Meyvis K, Vandepitte K, Reyns LM, Peeters J, Decupere M, Helbert M, Zeegers M, Neirynck N, Bernaert P, Dejagere T, Lemahieu W, Sprangers B, Pipeleers L, Hellemans R, Van Laecke S, Knops N, Levtchenko E, Walle JV, Karamaria S, Van Hoeck K, Trouet D, Mauel R, Dendooven A, Hoorens A, Van Dorpe J, Praet M, Geers C, Lerut E, Koshy P, Roskams T, Aydin S, Siozopoulou V, Schelfhout AM, De Raeve H, Steenkiste E, Dedeurwaerdere F, Dalle I, Cokelaere K, Deloose S, De Paepe P, Van Eyken P. Clinicopathological characteristics and disease chronicity in native kidney biopsies in Flanders. Clin Kidney J 2022; 16:125-137. [PMID: 36726429 PMCID: PMC9871845 DOI: 10.1093/ckj/sfac208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Indexed: 02/04/2023] Open
Abstract
Background The Flemish Collaborative Glomerulonephritis Group (FCGG) registry provides complete population data on kidney disease epidemiology in the region of Flanders (Belgium), as it captures all native kidney biopsies performed in its population of 6.5 million inhabitants. Methods From 2017 until 2019, 2054 adult kidney biopsies were included from 26 nephrology centers (one biopsy per patient). Data on nephrotic and nephritic syndrome were available in 1992 and 2026 biopsies, respectively. In a subgroup of 898 biopsies containing ≥10 glomeruli from 2018 to 2019, disease chronicity was graded using the Mayo Clinic Chronicity Score (MCCS). The association between clinical variables and MCCS was determined using simple and multiple linear regression models. Results Nephrotic syndrome (present in 378 patients, 19.0%) was most frequently caused by minimal change disease in younger patients (18-44 years), membranous nephropathy in older patients (45-74 years) and amyloidosis in the elderly (>75 years). Nephritic syndrome (present in 421 patients, 20.8%) was most frequently caused by immunoglobulin A nephropathy (IgAN) in younger patients (18-64 years) and ANCA-associated vasculitis (AAV) in older patients (>64 years). AAV and IgAN were the most frequent underlying diagnoses in biopsies in which crescents were identified. In multivariable analysis, acute and chronic kidney disease and diagnoses of diabetic kidney disease, nephrosclerosis and hyperoxaluria/hypercalcemic nephropathy were associated with the highest MCCS increases. Conclusions The FCGG registry validates data from previous Western European registries and provides a snapshot of disease chronicity in the whole biopsied Flemish population.
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Affiliation(s)
| | | | - Johan De Meester
- Department of Nephrology and Dialysis, VITAZ Hospital, Sint-Niklaas, Belgium
| | - Evert Cleenders
- Department of Microbiology, Immunology and Transplantation, Nephrology and Renal Transplantation Research Group, KU Leuven, Leuven, Belgium
| | - Amélie Dendooven
- Division of Pathology, University Hospital Ghent, Ghent, Belgium,Laboratory of Experimental Medicine and Pediatrics, University of Antwerp, Wilrijk, Belgium
| | - Evelyne Lerut
- Department of Imaging and Pathology, KU Leuven, Leuven, Belgium,Department of Pathology, University Hospitals Leuven, Leuven, Belgium
| | - An S De Vriese
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium,Department of Nephrology and Infectious Diseases, AZ Sint-Jan, Brugge, Belgium
| | - Tom Dejagere
- Department of Nephrology, Jessa Hospital, Hasselt, Belgium
| | - Mark Helbert
- Department of Nephrology, ZNA Middelheim Hospital, Antwerp, Belgium
| | - Rachel Hellemans
- Laboratory of Experimental Medicine and Pediatrics, University of Antwerp, Wilrijk, Belgium,Department of Nephrology, Antwerp University Hospital, Edegem, Belgium
| | - Priyanka Koshy
- Department of Pathology, University Hospitals Leuven, Leuven, Belgium
| | - Bart Maes
- Department of Nephrology, AZ Delta, Roeselare, Belgium
| | - Lissa Pipeleers
- Department of Nephrology, University Hospital Brussels, Brussels, Belgium
| | - Amaryllis H Van Craenenbroeck
- Department of Nephrology, University Hospitals Leuven, Leuven, Belgium,Department of Microbiology, Immunology and Transplantation, Nephrology and Renal Transplantation Research Group, KU Leuven, Leuven, Belgium
| | - Steven Van Laecke
- Renal Division, Department of Internal Medicine, Ghent University Hospital, Ghent, Belgium
| | - Johan Vande Walle
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium,Department of Pediatric Nephrology, Ghent University Hospital, Ghent, Belgium
| | - Marie M Couttenye
- Laboratory of Experimental Medicine and Pediatrics, University of Antwerp, Wilrijk, Belgium,Department of Nephrology, Antwerp University Hospital, Edegem, Belgium
| | - Gert Meeus
- Department of Nephrology, AZ Groeninge Hospital, Kortrijk, Belgium
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5
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Laurens W, Deleersnijder D, Dendooven A, Lerut E, De Vriese AS, Dejagere T, Helbert M, Hellemans R, Koshy P, Maes B, Pipeleers L, Van Craenenbroeck AH, Van Laecke S, Walle JV, Coutteneye MM, De Meester J, Sprangers B, De Vriese A, De Rycke A, Bogaert AM, Woestenburg A, Denys B, Maes B, Peeters D, Vanbelleghem H, Donck J, Scharpé J, De Clippeleir N, Vanparys J, Meyvis K, Vandepitte K, Reyns LM, Verresen L, Decupere M, Helbert M, Zeegers M, Neirynck N, Bernaert P, Dejagere T, Lemahieu W, Sprangers B, Pipeleers L, Hellemans R, Van Laecke S, Levtchenko E, Karamaria S, Van Hoeck K, Trouet D, Mauel R, Dendooven A, Hoorens A, Van Dorpe J, Praet M, Geers C, Lerut E, Koshy P, Roskams T, Aydin S, Siozopoulou V, Schelfhout AM, De Raeve H, Steenkiste E, Dedeurwaerdere F, Dalle I, Cokelaere K, Deloose S, De Paepe P, Van Eyken P. Epidemiology of native kidney disease in Flanders: results from the FCGG kidney biopsy registry. Clin Kidney J 2022; 15:1361-1372. [PMID: 35756729 PMCID: PMC9217646 DOI: 10.1093/ckj/sfac033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Indexed: 11/30/2022] Open
Abstract
Background The Flemish Collaborative Glomerulonephritis Group (FCGG) registry is the first population-based native kidney biopsy registry in Flanders, Belgium. In this first analysis, we report on patient demographics, frequency distribution and incidence rate of biopsied kidney disease in adults in Flanders. Methods From January 2017 to December 2019, a total of 2054 adult first native kidney biopsies were included. A ‘double diagnostic coding’ strategy was used, in which every biopsy sample received a histopathological and final clinical diagnosis. Frequency distribution and incidence rate of both diagnoses were reported and compared with other European registries. Results The median age at biopsy was 61.1 years (interquartile range, 46.1–71.7); male patients were more prevalent (62.1%) and biopsy incidence rate was 129.3 per million persons per year. Immunoglobulin A nephropathy was the most frequently diagnosed kidney disease (355 biopsies, 17.3% of total) with a similar frequency as in previously published European registries. The frequency of tubulointerstitial nephritis (220 biopsies, 10.7%) and diabetic kidney disease (154 biopsies, 7.5%) was remarkably higher, which may be attributed to changes in disease incidence as well as biopsy practices. Discordances between histopathological and final clinical diagnoses were noted and indicate areas for improvement in diagnostic coding systems. Conclusions The FCGG registry, with its ‘double diagnostic coding’ strategy, provides useful population-based epidemiological data on a large Western European population and allows subgroup selection for future research.
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Affiliation(s)
- Wim Laurens
- Department of Nephrology and Dialysis, AZ Nikolaas Hospital, Sint-Niklaas, Belgium
- Department of Internal Medicine and Pediatrics, Ghent University, Belgium
| | - Dries Deleersnijder
- Department of Microbiology, Immunology and Transplantation, Laboratory of Molecular Immunology, Rega Institute, KU Leuven, Leuven, Belgium
- Division of Nephrology, University Hospitals Leuven, Leuven, Belgium
| | - Amélie Dendooven
- Division of Pathology, University Hospital Ghent, Ghent, Belgium
- Laboratory of Experimental Medicine and Pediatrics, University of Antwerp, Wilrijk, Belgium
| | - Evelyne Lerut
- Department of Imaging and Pathology, KU Leuven, Leuven, Belgium
- Department of Pathology, University Hospitals Leuven, Leuven, Belgium
| | - An S De Vriese
- Department of Internal Medicine and Pediatrics, Ghent University, Belgium
- Division of Nephrology and Infectious Diseases, AZ Sint-Jan, Brugge, Belgium
| | - Tom Dejagere
- Department of Nephrology, Jessa Hospital, Hasselt, Belgium
| | - Mark Helbert
- Department of Nephrology, ZNA Middelheim Hospital, Antwerp, Belgium
| | - Rachel Hellemans
- Laboratory of Experimental Medicine and Pediatrics, University of Antwerp, Wilrijk, Belgium
- Department of Nephrology, Antwerp University Hospital, Edegem, Belgium
| | - Priyanka Koshy
- Department of Pathology, University Hospitals Leuven, Leuven, Belgium
| | - Bart Maes
- Department of Nephrology, AZ Delta, Roeselare, Belgium
| | - Lissa Pipeleers
- Department of Nephrology, University Hospital Brussels, Brussels, Belgium
| | - Amaryllis H Van Craenenbroeck
- Division of Nephrology, University Hospitals Leuven, Leuven, Belgium
- Department of Microbiology, Immunology and Transplantation, Nephrology and Renal Transplantation Research Group, KU Leuven, Leuven, Belgium
| | - Steven Van Laecke
- Renal Division, Department of Internal Medicine, Ghent University Hospital, Ghent, Belgium
| | - Johan Vande Walle
- Department of Internal Medicine and Pediatrics, Ghent University, Belgium
- Department of Pediatric Nephrology, Ghent University Hospital, Ghent, Belgium
| | - Marie M Coutteneye
- Laboratory of Experimental Medicine and Pediatrics, University of Antwerp, Wilrijk, Belgium
- Department of Nephrology, Antwerp University Hospital, Edegem, Belgium
| | - Johan De Meester
- Department of Nephrology and Dialysis, AZ Nikolaas Hospital, Sint-Niklaas, Belgium
| | - Ben Sprangers
- Department of Microbiology, Immunology and Transplantation, Laboratory of Molecular Immunology, Rega Institute, KU Leuven, Leuven, Belgium
- Division of Nephrology, University Hospitals Leuven, Leuven, Belgium
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Sieben A, Van Langenhove T, Vermeiren Y, Gossye H, Praet M, Vanhauwaert D, Cousaert C, Engelborghs S, Raedt R, Boon P, Santens P, De Deyn PP, Bracke KR, De Meulemeester K, Van Broeckhoven C, Martin JJ, Bjerke M. Hippocampal Sclerosis in Frontotemporal Dementia: When Vascular Pathology Meets Neurodegeneration. J Neuropathol Exp Neurol 2021; 80:313-324. [PMID: 33638350 DOI: 10.1093/jnen/nlab010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Hippocampal sclerosis (HS) is a common neuropathological finding and has been associated with advanced age, TDP-43 proteinopathy, and cerebrovascular pathology. We analyzed neuropathological data of an autopsy cohort of early-onset frontotemporal dementia patients. The study aimed to determine whether in this cohort HS was related to TDP-43 proteinopathy and whether additional factors could be identified. We examined the relationship between HS, proteinopathies in frontotemporal cortices and hippocampus, Alzheimer disease, cerebrovascular changes, and age. We confirmed a strong association between HS and hippocampal TDP-43, whereas there was a weaker association between HS and frontotemporal lobar degeneration with TDP-43 pathology (FTLD-TDP). Nearly all of the FTLD-TDP cases had TDP-43 pathology in the hippocampus. HS was present in all FTLD-TDP type D cases, in 50% of the FTLD-TDP A cohort and in 6% of the FTLD-TDP B cohort. Our data also showed a significant association between HS and vascular changes. We reviewed the literature on HS and discuss possible pathophysiological mechanisms between TDP-43 pathology, cerebrovascular disease, and HS. Additionally, we introduced a quantitative neuronal cell count in CA1 to objectify the semiquantitative visual appreciation of HS.
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Affiliation(s)
- Anne Sieben
- Institute Born-Bunge, Neuropathology and Laboratory of Neurochemistry and Behavior, University of Antwerp, Antwerp, Belgium.,Department of Neurology, Ghent University Hospital, Ghent, Belgium.,Neurodegenerative Brain Diseases Group, Center for Molecular Neurology, VIB, Antwerp, Belgium.,Department of Neurology, AZ Jan Palfijn, Ghent, Belgium
| | - Tim Van Langenhove
- Department of Neurology, Ghent University Hospital, Ghent, Belgium.,Neurodegenerative Brain Diseases Group, Center for Molecular Neurology, VIB, Antwerp, Belgium
| | - Yannick Vermeiren
- Institute Born-Bunge, Neuropathology and Laboratory of Neurochemistry and Behavior, University of Antwerp, Antwerp, Belgium.,Division of Human Nutrition and Health, Chair Group of Nutritional Biology, Wageningen University and Research, Wageningen, The Netherlands
| | - Helena Gossye
- Neurodegenerative Brain Diseases Group, Center for Molecular Neurology, VIB, Antwerp, Belgium.,Department of Neurology, Antwerp University Hospital, Edegem, Belgium.,Institute Born-Bunge, Laboratory of Neurogenetics, University of Antwerp, Antwerp, Belgium.,Department of Neurology and Center for Neurosciences (C4N), UZ Brussel and Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Marleen Praet
- Department of Pathology, Ghent University Hospital, Ghent, Belgium
| | | | | | - Sebastiaan Engelborghs
- Institute Born-Bunge, Neuropathology and Laboratory of Neurochemistry and Behavior, University of Antwerp, Antwerp, Belgium.,Department of Neurology and Center for Neurosciences (C4N), UZ Brussel and Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Robrecht Raedt
- Department of Neurology, Ghent University Hospital, Ghent, Belgium
| | - Paul Boon
- Department of Neurology, Ghent University Hospital, Ghent, Belgium
| | - Patrick Santens
- Department of Neurology, Ghent University Hospital, Ghent, Belgium
| | - Peter Paul De Deyn
- Institute Born-Bunge, Neuropathology and Laboratory of Neurochemistry and Behavior, University of Antwerp, Antwerp, Belgium.,Neurodegenerative Brain Diseases Group, Center for Molecular Neurology, VIB, Antwerp, Belgium.,Department of Neurology and Alzheimer Research Center, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands
| | - Ken R Bracke
- Department of Respiratory Medicine, Ghent University Hospital, Ghent, Belgium
| | | | - Christine Van Broeckhoven
- Neurodegenerative Brain Diseases Group, Center for Molecular Neurology, VIB, Antwerp, Belgium.,Laboratory of Neurogenetics, Institute Born-Bunge, Antwerp, Belgium.,Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
| | - Jean-Jacques Martin
- Institute Born-Bunge, Neuropathology and Laboratory of Neurochemistry and Behavior, University of Antwerp, Antwerp, Belgium
| | - Maria Bjerke
- Institute Born-Bunge, Neuropathology and Laboratory of Neurochemistry and Behavior, University of Antwerp, Antwerp, Belgium.,Neurochemistry Laboratory, Department of Clinical Biology and Center for Neurosciences, University hospital Brussels and Free University of Brussels, Brussels, Belgium
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7
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Tack LJW, Praet M, Van Dorpe J, Haid B, Buelens S, Hoebeke P, Van Laecke E, Cools M, Spinoit AF. Androgen receptor expression in preputial dartos tissue correlates with physiological androgen exposure in congenital malformations of the penis and in controls. J Pediatr Urol 2020; 16:43.e1-43.e8. [PMID: 31810878 DOI: 10.1016/j.jpurol.2019.10.031] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 10/30/2019] [Indexed: 12/20/2022]
Abstract
INTRODUCTION The androgen receptor (AR) plays an important role in the development of male genitalia, and impaired androgen signalling has been hypothesised to underlie congenital penile malformations (CPM) such as hypospadias. Previous studies exploring the role of AR expression in the development of CPM have yielded conflicting results. OBJECTIVES To assess AR expression in human foreskin of boys/men born with hypospadias, buried penis versus controls. STUDY DESIGN Foreskin samples of 428 boys and men undergoing primary penile surgery (198 controls, 197 hypospadias, and 33 buried penis) were collected between October 2013 and July 2018. AR staining was performed in all samples and semi-quantitatively scored by two researchers independently, using a modified quick score (mQuicks) that assesses the proportion and intensity of AR staining in smooth muscle fibres. RESULTS The interobserver variability of the mQuicks had a high level of agreement for the total score, as well as for the subscores. Two phases of high AR expression were observed in all groups, the first following the postnatal gonadotropin surge (i.e., mini-puberty) and the second in (pre-) puberty. No differences in AR expression were found in hypospadias or buried penis cases as compared to controls matched for age at time of surgery. DISCUSSION This study describes the physiological evolution in AR expression in the human foreskin of boys with CPM and explains the cause of the previously reported, conflicting results. Despite the very large cohort, the limitations of this study are the low number of cases younger than six months at the time of surgery and the lack of Tanner stages to correlate with the mQuicks in adolescents. CONCLUSIONS The mQuicks is a straightforward and informative tool to semi-quantitatively assess AR expression in the dartos tissue. In this study, AR expression in human foreskin shows a bimodal distribution in boys with CMP and controls, following physiological androgen exposure. No statistically significant difference in AR expression could be found between both groups. Whether other local mechanisms are affected by these physiological changes is currently unclear. However, strict age-matching should be considered when exploring the mechanisms underlying disturbed penile and urethral development in CMP.
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Affiliation(s)
- L J W Tack
- Pediatric Endocrinology Service, Ghent University Hospital, Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - M Praet
- Department of Pathology, Ghent University Hospital, Ghent, Belgium
| | - J Van Dorpe
- Department of Pathology, Ghent University Hospital, Ghent, Belgium
| | - B Haid
- Department of Pediatric Urology Ordensklinikum Linz, Hospital of the Sisters of Charity, Linz Austria & Department of Urology, Ludwig-Maximilian University of Munich, Germany
| | - S Buelens
- Department of Urology, Ghent University Hospital, Ghent, Belgium
| | - P Hoebeke
- Department of Urology, Ghent University Hospital, Ghent, Belgium
| | - E Van Laecke
- Department of Urology, Ghent University Hospital, Ghent, Belgium
| | - M Cools
- Pediatric Endocrinology Service, Ghent University Hospital, Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - A F Spinoit
- Department of Urology, Ghent University Hospital, Ghent, Belgium.
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8
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Bogaert AM, Hoorens A, Praet M, Van Dorpe J, Poppe B, De Scheerder MA. Tissue is the issue: when a second biopsy reveals the true diagnosis. Clin Kidney J 2019; 14:429-431. [PMID: 33564449 PMCID: PMC7857801 DOI: 10.1093/ckj/sfz165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 10/22/2019] [Indexed: 11/27/2022] Open
Abstract
We describe the case of a woman with minimal glomerular changes on initial kidney biopsy. On long-term follow-up, the patient developed nephrotic proteinuria and a second kidney biopsy was performed, which revealed focal segmental glomerulosclerosis (FSGS). Findings from electron microscopy (EM) examination suggested a genetic form of FSGS. Next-generation sequencing showed heterozygosity for a mutation in COL4A3. Collagen IV nephropathies can be linked to late-onset FSGS. By establishing a genetic cause of FSGS, immunosuppressive treatment can be avoided. This case emphasizes the importance of re-biopsy in cases of a non-explained rise in proteinuria. EM can be helpful in differentiating between primary and secondary FSGS and informing treatment strategies. In cases of adult-onset FSGS that cannot be categorized by clinical–pathological assessment, genetic testing should be considered.
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Affiliation(s)
| | - Anne Hoorens
- Department of Pathology, Ghent University Hospital, Ghent, Belgium
| | - Marleen Praet
- Department of Pathology, Ghent University Hospital, Ghent, Belgium
| | - Jo Van Dorpe
- Department of Pathology, Ghent University Hospital, Ghent, Belgium
| | - Bruce Poppe
- Center for Medical Genetics, Ghent University Hospital, Ghent, Belgium
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9
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Coorevits L, Traen A, Bingé L, Van Dorpe J, Praet M, Boelens J, Padalko E. Identifying a consensus sample type to test for Chlamydia trachomatis, Neisseria gonorrhoeae, Mycoplasma genitalium, Trichomonas vaginalis and human papillomavirus. Clin Microbiol Infect 2018; 24:1328-1332. [DOI: 10.1016/j.cmi.2018.03.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2017] [Revised: 03/05/2018] [Accepted: 03/08/2018] [Indexed: 10/17/2022]
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10
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Van Schandevyl S, Coorevits L, Boelens J, Traen A, Bingé L, Praet M, Van Dorpe J, Padalko E. Detection of human papillomavirus 67 single infection in high‐grade cervical lesions: Case report and review of literature. Diagn Cytopathol 2018; 47:251-254. [DOI: 10.1002/dc.24067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2018] [Revised: 07/17/2018] [Accepted: 07/23/2018] [Indexed: 01/09/2023]
Affiliation(s)
| | - Liselotte Coorevits
- Department of Laboratory MedicineGhent University Hospital Ghent Belgium
- Department of Clinical Chemistry, Microbiology and ImmunologyGhent University Ghent Belgium
| | - Jerina Boelens
- Department of Laboratory MedicineGhent University Hospital Ghent Belgium
- Department of Clinical Chemistry, Microbiology and ImmunologyGhent University Ghent Belgium
| | | | | | - Marleen Praet
- Department of PathologyGhent University and Ghent University Hospital Ghent Belgium
| | - Jo Van Dorpe
- Department of PathologyGhent University and Ghent University Hospital Ghent Belgium
| | - Elizaveta Padalko
- Department of Laboratory MedicineGhent University Hospital Ghent Belgium
- Department of Clinical Chemistry, Microbiology and ImmunologyGhent University Ghent Belgium
- School of Life SciencesHasselt University Diepenbeek Belgium
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11
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Rosskamp M, Macq G, Nackaerts K, Praet M, Van Eycken L, Van Meerbeeck JP, De Schutter H. Real-life treatment practice for malignant pleural mesothelioma in Belgium. Lung Cancer 2018; 125:258-264. [DOI: 10.1016/j.lungcan.2018.10.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 09/13/2018] [Accepted: 10/06/2018] [Indexed: 01/27/2023]
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12
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Coorevits L, Traen A, Bingé L, Van Dorpe J, Praet M, Boelens J, Padalko E. Are vaginal swabs comparable to cervical smears for human papillomavirus DNA testing? J Gynecol Oncol 2018; 29:e8. [PMID: 29185266 PMCID: PMC5709534 DOI: 10.3802/jgo.2018.29.e8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Revised: 08/18/2017] [Accepted: 10/12/2017] [Indexed: 11/30/2022] Open
Abstract
Objective Human papillomavirus (HPV) testing is widely incorporated into cervical cancer screening strategies. Current screening requires pelvic examination for cervical sampling, which may compromise participation. The acceptance could be raised by introducing testing on vaginal swabs. We explored the interchangeability of vaginal swabs and cervical smears for HPV testing, by means of a prospective study conducted in female sex workers (FSWs). Besides, we report on the occurrence of 32 different HPV genotypes in FSW with low-grade squamous intraepithelial lesion (LSIL) or high-grade squamous intraepithelial lesion (HSIL). Methods Paired physician-collected vaginal swabs and cervical smears from 303 FSW were tested for HPV using the Abbott RealTime High-Risk HPV assay. Cervical cytology was examined on cervical smears. In case of HSIL/LSIL cytological classification (n=52), both samples were genotyped using INNO-LiPa HPV Genotyping Extra II. Results The overall prevalence of high-risk (HR)-HPV was 51%. In FSW with HSIL/LSIL cervical cytology, the sensitivity and specificity of vaginal samples for the detection of HR-HPV was 100% and 70% and for probable HR-HPV 100% and 91%. The mean number of genotypes identified in vaginal samples (mean=3.5; 95% confidence interval [CI]=2.8–4.2) was significantly higher than in cervical smear samples (mean=2.6; 95% CI=2.1–3.0) (p=0.001). The most frequently encountered HR-HPV genotypes were HPV16, 31, 51, and 52. Conclusion As our study shows that vaginal swabs are equivalent to cervical smears for the detection of (probable) HR-HPV, vaginal swabs can be used for HPV testing in cervical cancer screening strategies. Given the acceptance of vaginal sampling, this finding offers an opportunity to boost screening coverage.
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Affiliation(s)
- Liselotte Coorevits
- Department of Laboratory Medicine, Ghent University Hospital, Ghent, Belgium.,Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, Ghent, Belgium.
| | | | | | - Jo Van Dorpe
- Department of Pathology, Ghent University and Ghent University Hospital, Ghent, Belgium
| | - Marleen Praet
- Department of Pathology, Ghent University and Ghent University Hospital, Ghent, Belgium
| | - Jerina Boelens
- Department of Laboratory Medicine, Ghent University Hospital, Ghent, Belgium.,Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, Ghent, Belgium
| | - Elizaveta Padalko
- Department of Laboratory Medicine, Ghent University Hospital, Ghent, Belgium.,Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, Ghent, Belgium.,School of Life Sciences, Hasselt University, Diepenbeek, Belgium
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13
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Van Renterghem SMJ, Van Dorpe J, Monstrey SJ, Defreyne J, Claes KEY, Praet M, Verbeke SLJ, T'Sjoen GGR, Van Bockstal MR. Routine histopathological examination after female-to-male gender-confirming mastectomy. Br J Surg 2018; 105:885-892. [DOI: 10.1002/bjs.10794] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 10/22/2017] [Accepted: 11/17/2017] [Indexed: 12/25/2022]
Abstract
Abstract
Background
The number of transmen seeking gender-confirming surgery has risen steadily throughout the last decade. Pathologists are increasingly confronted with transmale mastectomy specimens. It is not clear whether routine histopathological examination is useful. This study explored the possible benefit of routine investigation through detailed description of lesions encountered in mastectomy specimens after female-to-male gender-confirming surgery.
Methods
Breast tissue from a cohort of transmen was reviewed. The presence of benign and malignant breast lesions was recorded. The number of terminal duct–lobule units (TDLUs) per ten low-power fields (LPFs) was quantified. Information on hormone therapy and morphometry was retrieved for selected patients.
Results
The cohort included 344 subjects with a mean age of 25·8 (range 16–61) years at the time of surgery; the age at surgery decreased significantly over time. Older individuals presented with a significantly higher number of breast lesions. The number of TDLUs per LPF was lower in heavier breasts, but did not correlate with age. Breast lesions, either benign or malignant, were present in 166 individuals (48·3 per cent). Invasive breast cancer was found in two (0·6 per cent); one tumour was an unexpected finding. The number of breast lesions encountered on histopathological examination increased significantly when more tissue blocks were taken.
Conclusion
The discovery of an unexpected breast cancer in a 31-year-old transman emphasizes the importance of thorough routine histopathological examination of mastectomy specimens. The number of tissue blocks taken should be based on age and breast weight.
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Affiliation(s)
| | - J Van Dorpe
- Department of Pathology, Ghent University Hospital, Ghent, Belgium
- Department of Plastic and Reconstructive Surgery, Ghent University Hospital, Ghent, Belgium
| | - S J Monstrey
- Department of Endocrinology, Ghent University Hospital, Ghent, Belgium
| | - J Defreyne
- Centre for Sexology and Gender, Ghent University Hospital, Ghent, Belgium
- Cancer Research Institute Ghent (GRIG), Ghent, Belgium
| | - K E Y Claes
- Department of Endocrinology, Ghent University Hospital, Ghent, Belgium
| | - M Praet
- Department of Pathology, Ghent University Hospital, Ghent, Belgium
| | - S L J Verbeke
- Department of Pathology, Ghent University Hospital, Ghent, Belgium
- Department of Plastic and Reconstructive Surgery, Ghent University Hospital, Ghent, Belgium
| | - G G R T'Sjoen
- Centre for Sexology and Gender, Ghent University Hospital, Ghent, Belgium
- Cancer Research Institute Ghent (GRIG), Ghent, Belgium
| | - M R Van Bockstal
- Department of Pathology, Ghent University Hospital, Ghent, Belgium
- Department of Plastic and Reconstructive Surgery, Ghent University Hospital, Ghent, Belgium
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14
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Sieben A, Van Mossevelde S, Wauters E, Engelborghs S, van der Zee J, Van Langenhove T, Santens P, Praet M, Boon P, Miatton M, Van Hoecke S, Vandenbulcke M, Vandenberghe R, Cras P, Cruts M, De Deyn PP, Van Broeckhoven C, Martin JJ. Extended FTLD pedigree segregating a Belgian GRN-null mutation: neuropathological heterogeneity in one family. Alzheimers Res Ther 2018; 10:7. [PMID: 29370838 PMCID: PMC6389176 DOI: 10.1186/s13195-017-0334-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Accepted: 12/20/2017] [Indexed: 12/12/2022]
Abstract
BACKGROUND In this paper, we describe the clinical and neuropathological findings of nine members of the Belgian progranulin gene (GRN) founder family. In this family, the loss-of-function mutation IVS1 + 5G > C was identified in 2006. In 2007, a clinical description of the mutation carriers was published that revealed the clinical heterogeneity among IVS1 + 5G > C carriers. We report our comparison of our data with the published clinical and neuropathological characteristics of other GRN mutations as well as other frontotemporal lobar degeneration (FTLD) syndromes, and we present a review of the literature. METHODS For each case, standardized sampling and staining were performed to identify proteinopathies, cerebrovascular disease, and hippocampal sclerosis. RESULTS The neuropathological substrate in the studied family was compatible in all cases with transactive response DNA-binding protein (TDP) proteinopathy type A, as expected. Additionally, most of the cases presented also with primary age-related tauopathy (PART) or mild Alzheimer's disease (AD) neuropathological changes, and one case had extensive Lewy body pathology. An additional finding was the presence of cerebral small vessel changes in every patient in this family. CONCLUSIONS Our data show not only that the IVS1 + 5G > C mutation has an exclusive association with FTLD-TDP type A proteinopathy but also that other proteinopathies can occur and should be looked for. Because the penetrance rate of the clinical phenotype of carriers of GRN mutations is age-dependent, further research is required to investigate the role of co-occurring age-related pathologies such as AD, PART, and cerebral small vessel disease.
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Affiliation(s)
- Anne Sieben
- Institute Born-Bunge, Neuropathology and Laboratory of Neurochemistry and Behavior, University of Antwerp, Universiteitsplein 1, B-2160, Antwerp, Belgium.,Department of Neurology, Ghent University Hospital, Ghent, Belgium.,Neurodegenerative Brain Diseases Group, Center for Molecular Neurology, VIB , Universiteitsplein 1, B-2610, Antwerp, Belgium
| | - Sara Van Mossevelde
- Neurodegenerative Brain Diseases Group, Center for Molecular Neurology, VIB , Universiteitsplein 1, B-2610, Antwerp, Belgium.,Laboratory of Neurogenetics, Institute Born-Bunge, University of Antwerp, Antwerp, Belgium.,Department of Neurology and Memory Clinic, Hospital Netwerk Antwerp (ZNA) Middelheim and Hoge Beuken, Antwerp, Belgium.,Department of Neurology, Antwerp University Hospital, Edegem, Belgium
| | - Eline Wauters
- Neurodegenerative Brain Diseases Group, Center for Molecular Neurology, VIB , Universiteitsplein 1, B-2610, Antwerp, Belgium.,Laboratory of Neurogenetics, Institute Born-Bunge, University of Antwerp, Antwerp, Belgium
| | - Sebastiaan Engelborghs
- Institute Born-Bunge, Neuropathology and Laboratory of Neurochemistry and Behavior, University of Antwerp, Universiteitsplein 1, B-2160, Antwerp, Belgium.,Department of Neurology and Memory Clinic, Hospital Netwerk Antwerp (ZNA) Middelheim and Hoge Beuken, Antwerp, Belgium
| | - Julie van der Zee
- Neurodegenerative Brain Diseases Group, Center for Molecular Neurology, VIB , Universiteitsplein 1, B-2610, Antwerp, Belgium.,Laboratory of Neurogenetics, Institute Born-Bunge, University of Antwerp, Antwerp, Belgium
| | - Tim Van Langenhove
- Department of Neurology, Ghent University Hospital, Ghent, Belgium.,Neurodegenerative Brain Diseases Group, Center for Molecular Neurology, VIB , Universiteitsplein 1, B-2610, Antwerp, Belgium.,Laboratory of Neurogenetics, Institute Born-Bunge, University of Antwerp, Antwerp, Belgium
| | - Patrick Santens
- Department of Neurology, Ghent University Hospital, Ghent, Belgium
| | - Marleen Praet
- Department of Pathology, Ghent University Hospital, Ghent, Belgium
| | - Paul Boon
- Department of Neurology, Ghent University Hospital, Ghent, Belgium
| | - Marijke Miatton
- Department of Neurology, Ghent University Hospital, Ghent, Belgium
| | - Sofie Van Hoecke
- Department of Electronics and Information Systems, Ghent University, Ghent, Belgium
| | - Mathieu Vandenbulcke
- Department of Neurosciences, Faculty of Medicine, KU Leuven, Leuven, Belgium.,Department of Old Age Psychiatry and Memory Clinic, University Hospitals Leuven, Leuven, Belgium
| | - Rik Vandenberghe
- Department of Neurosciences, Faculty of Medicine, KU Leuven, Leuven, Belgium.,Department of Neurology, University Hospitals Leuven, Leuven, Belgium
| | - Patrick Cras
- Institute Born-Bunge, Neuropathology and Laboratory of Neurochemistry and Behavior, University of Antwerp, Universiteitsplein 1, B-2160, Antwerp, Belgium.,Department of Neurology, Antwerp University Hospital, Edegem, Belgium
| | - Marc Cruts
- Neurodegenerative Brain Diseases Group, Center for Molecular Neurology, VIB , Universiteitsplein 1, B-2610, Antwerp, Belgium.,Laboratory of Neurogenetics, Institute Born-Bunge, University of Antwerp, Antwerp, Belgium
| | - Peter Paul De Deyn
- Institute Born-Bunge, Neuropathology and Laboratory of Neurochemistry and Behavior, University of Antwerp, Universiteitsplein 1, B-2160, Antwerp, Belgium.,Department of Neurology and Memory Clinic, Hospital Netwerk Antwerp (ZNA) Middelheim and Hoge Beuken, Antwerp, Belgium.,Department of Neurology and Alzheimer Research Center, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands
| | - Christine Van Broeckhoven
- Neurodegenerative Brain Diseases Group, Center for Molecular Neurology, VIB , Universiteitsplein 1, B-2610, Antwerp, Belgium. .,Laboratory of Neurogenetics, Institute Born-Bunge, University of Antwerp, Antwerp, Belgium.
| | - Jean-Jacques Martin
- Institute Born-Bunge, Neuropathology and Laboratory of Neurochemistry and Behavior, University of Antwerp, Universiteitsplein 1, B-2160, Antwerp, Belgium.
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15
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De Jaeghere E, De Vlieghere E, Van Hoorick J, Van Vlierberghe S, Wagemans G, Pieters L, Melsens E, Praet M, Van Dorpe J, Boone MN, Ghobeira R, De Geyter N, Bracke M, Vanhove C, Neyt S, Berx G, De Geest BG, Dubruel P, Declercq H, Ceelen W, De Wever O. Heterocellular 3D scaffolds as biomimetic to recapitulate the tumor microenvironment of peritoneal metastases in vitro and in vivo. Biomaterials 2017; 158:95-105. [PMID: 29306747 DOI: 10.1016/j.biomaterials.2017.12.017] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 12/20/2017] [Accepted: 12/21/2017] [Indexed: 01/01/2023]
Abstract
Peritoneal metastasis is a major cause of death and preclinical models are urgently needed to enhance therapeutic progress. This study reports on a hybrid hydrogel-polylactic acid (PLA) scaffold that mimics the architecture of peritoneal metastases at the qualitative, quantitative and spatial level. Porous PLA scaffolds with controllable pore size, geometry and surface properties are functionalized by type I collagen hydrogel. Co-seeding of cancer-associated fibroblasts (CAF) increases cancer cell adhesion, recovery and exponential growth by in situ heterocellular spheroid formation. Scaffold implantation into the peritoneum allows long-term follow-up (>14 weeks) and results in a time-dependent increase in vascularization, which correlates with cancer cell colonization in vivo. CAF, endothelial cells, macrophages and cancer cells show spatial and quantitative aspects as similarly observed in patient-derived peritoneal metastases. CAF provide long-term secretion of complementary paracrine factors implicated in spheroid formation in vitro as well as in recruitment and organization of host cells in vivo. In conclusion, the multifaceted heterocellular interactions that occur within peritoneal metastases are reproduced in this tissue-engineered implantable scaffold model.
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Affiliation(s)
- Emiel De Jaeghere
- Laboratory Experimental Cancer Research (LECR), Ghent University, De Pintelaan 185, 9000 Ghent, Belgium; Cancer Research Institute Ghent (CRIG), Ghent University, De Pintelaan 185, 9000 Ghent, Belgium
| | - Elly De Vlieghere
- Laboratory Experimental Cancer Research (LECR), Ghent University, De Pintelaan 185, 9000 Ghent, Belgium; Cancer Research Institute Ghent (CRIG), Ghent University, De Pintelaan 185, 9000 Ghent, Belgium
| | - Jasper Van Hoorick
- Polymer Chemistry & Biomaterials Group, Centre of Macromolecular Chemistry, Ghent University, Krijgslaan 281, S4-Bis, 9000 Ghent, Belgium
| | - Sandra Van Vlierberghe
- Polymer Chemistry & Biomaterials Group, Centre of Macromolecular Chemistry, Ghent University, Krijgslaan 281, S4-Bis, 9000 Ghent, Belgium
| | - Glenn Wagemans
- Laboratory Experimental Cancer Research (LECR), Ghent University, De Pintelaan 185, 9000 Ghent, Belgium
| | - Leen Pieters
- Department of Basic Medical Sciences, Ghent University, De Pintelaan 185, 9000 Ghent, Belgium
| | - Elodie Melsens
- Experimental Surgery Lab, Department of Surgery, Ghent University, De Pintelaan 185, 9000 Ghent, Belgium
| | - Marleen Praet
- Department of Pathology, Ghent University Hospital, Ghent University, De Pintelaan 185, 9000 Ghent, Belgium
| | - Jo Van Dorpe
- Cancer Research Institute Ghent (CRIG), Ghent University, De Pintelaan 185, 9000 Ghent, Belgium; Department of Pathology, Ghent University Hospital, Ghent University, De Pintelaan 185, 9000 Ghent, Belgium
| | - Matthieu N Boone
- Department of Physics and Astronomy, Ghent University, Proeftuinstraat 86, 9000 Ghent, Belgium
| | - Rouba Ghobeira
- Department of Applied Physics, Research Unit Plasma Technology (RUPT), Ghent University, Sint-Pietersnieuwstraat 41, B4, 9000 Ghent, Belgium
| | - Nathalie De Geyter
- Department of Applied Physics, Research Unit Plasma Technology (RUPT), Ghent University, Sint-Pietersnieuwstraat 41, B4, 9000 Ghent, Belgium
| | - Marc Bracke
- Laboratory Experimental Cancer Research (LECR), Ghent University, De Pintelaan 185, 9000 Ghent, Belgium; Cancer Research Institute Ghent (CRIG), Ghent University, De Pintelaan 185, 9000 Ghent, Belgium
| | - Christian Vanhove
- Cancer Research Institute Ghent (CRIG), Ghent University, De Pintelaan 185, 9000 Ghent, Belgium; Institute Biomedical Technology, Ghent University, De Pintelaan 185, 9000 Ghent, Belgium
| | - Sara Neyt
- MOLECUBES NV, Ottergemsesteenweg-Zuid 808, 325 Ghent, Belgium
| | - Geert Berx
- Cancer Research Institute Ghent (CRIG), Ghent University, De Pintelaan 185, 9000 Ghent, Belgium; Department of Biomedical Molecular Biology, Unit of Molecular and Cellular Oncology, Inflammation Research Center, VIB, Technologiepark Zwijnaarde 927, 9052 Ghent, Belgium
| | - Bruno G De Geest
- Cancer Research Institute Ghent (CRIG), Ghent University, De Pintelaan 185, 9000 Ghent, Belgium; Department of Pharmaceutics, Ghent University, Ottergemstesteenweg 460, 9000 Ghent, Belgium
| | - Peter Dubruel
- Polymer Chemistry & Biomaterials Group, Centre of Macromolecular Chemistry, Ghent University, Krijgslaan 281, S4-Bis, 9000 Ghent, Belgium
| | - Heidi Declercq
- Cancer Research Institute Ghent (CRIG), Ghent University, De Pintelaan 185, 9000 Ghent, Belgium; Department of Basic Medical Sciences, Ghent University, De Pintelaan 185, 9000 Ghent, Belgium
| | - Wim Ceelen
- Cancer Research Institute Ghent (CRIG), Ghent University, De Pintelaan 185, 9000 Ghent, Belgium; Experimental Surgery Lab, Department of Surgery, Ghent University, De Pintelaan 185, 9000 Ghent, Belgium
| | - Olivier De Wever
- Laboratory Experimental Cancer Research (LECR), Ghent University, De Pintelaan 185, 9000 Ghent, Belgium; Cancer Research Institute Ghent (CRIG), Ghent University, De Pintelaan 185, 9000 Ghent, Belgium.
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Braun DA, Rao J, Mollet G, Schapiro D, Daugeron MC, Tan W, Gribouval O, Boyer O, Revy P, Jobst-Schwan T, Schmidt JM, Lawson JA, Schanze D, Ashraf S, Ullmann JFP, Hoogstraten CA, Boddaert N, Collinet B, Martin G, Liger D, Lovric S, Furlano M, Guerrera IC, Sanchez-Ferras O, Hu JF, Boschat AC, Sanquer S, Menten B, Vergult S, De Rocker N, Airik M, Hermle T, Shril S, Widmeier E, Gee HY, Choi WI, Sadowski CE, Pabst WL, Warejko JK, Daga A, Basta T, Matejas V, Scharmann K, Kienast SD, Behnam B, Beeson B, Begtrup A, Bruce M, Ch'ng GS, Lin SP, Chang JH, Chen CH, Cho MT, Gaffney PM, Gipson PE, Hsu CH, Kari JA, Ke YY, Kiraly-Borri C, Lai WM, Lemyre E, Littlejohn RO, Masri A, Moghtaderi M, Nakamura K, Ozaltin F, Praet M, Prasad C, Prytula A, Roeder ER, Rump P, Schnur RE, Shiihara T, Sinha MD, Soliman NA, Soulami K, Sweetser DA, Tsai WH, Tsai JD, Topaloglu R, Vester U, Viskochil DH, Vatanavicharn N, Waxler JL, Wierenga KJ, Wolf MTF, Wong SN, Leidel SA, Truglio G, Dedon PC, Poduri A, Mane S, Lifton RP, Bouchard M, Kannu P, Chitayat D, Magen D, Callewaert B, van Tilbeurgh H, Zenker M, Antignac C, Hildebrandt F. Mutations in KEOPS-complex genes cause nephrotic syndrome with primary microcephaly. Nat Genet 2017; 49:1529-1538. [PMID: 28805828 DOI: 10.1038/ng.3933] [Citation(s) in RCA: 134] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2016] [Accepted: 07/20/2017] [Indexed: 12/19/2022]
Abstract
Galloway-Mowat syndrome (GAMOS) is an autosomal-recessive disease characterized by the combination of early-onset nephrotic syndrome (SRNS) and microcephaly with brain anomalies. Here we identified recessive mutations in OSGEP, TP53RK, TPRKB, and LAGE3, genes encoding the four subunits of the KEOPS complex, in 37 individuals from 32 families with GAMOS. CRISPR-Cas9 knockout in zebrafish and mice recapitulated the human phenotype of primary microcephaly and resulted in early lethality. Knockdown of OSGEP, TP53RK, or TPRKB inhibited cell proliferation, which human mutations did not rescue. Furthermore, knockdown of these genes impaired protein translation, caused endoplasmic reticulum stress, activated DNA-damage-response signaling, and ultimately induced apoptosis. Knockdown of OSGEP or TP53RK induced defects in the actin cytoskeleton and decreased the migration rate of human podocytes, an established intermediate phenotype of SRNS. We thus identified four new monogenic causes of GAMOS, describe a link between KEOPS function and human disease, and delineate potential pathogenic mechanisms.
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Affiliation(s)
- Daniela A Braun
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Jia Rao
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Geraldine Mollet
- Laboratory of Hereditary Kidney Diseases, INSERM UMR1163, Imagine Institute, Paris, France.,Université Paris Descartes-Sorbonne Paris Cité, Imagine Institute, Paris, France
| | - David Schapiro
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Marie-Claire Daugeron
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Université Paris-Sud, Université Paris-Saclay, Gif-sur-Yvette, France
| | - Weizhen Tan
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Olivier Gribouval
- Laboratory of Hereditary Kidney Diseases, INSERM UMR1163, Imagine Institute, Paris, France.,Université Paris Descartes-Sorbonne Paris Cité, Imagine Institute, Paris, France
| | - Olivia Boyer
- Laboratory of Hereditary Kidney Diseases, INSERM UMR1163, Imagine Institute, Paris, France.,Université Paris Descartes-Sorbonne Paris Cité, Imagine Institute, Paris, France.,Department of Pediatric Nephrology, Necker Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Patrick Revy
- Université Paris Descartes-Sorbonne Paris Cité, Imagine Institute, Paris, France.,INSERM, U1163, Imagine Institute, Laboratory of Genome Dynamics in the Immune system, Paris, France
| | - Tilman Jobst-Schwan
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Johanna Magdalena Schmidt
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Jennifer A Lawson
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Denny Schanze
- Institute of Human Genetics, University Hospital Magdeburg, Magdeburg, Germany
| | - Shazia Ashraf
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Jeremy F P Ullmann
- Epilepsy Genetics Program and F.M. Kirby Neurobiology Center, Department of Neurology, Boston Children's Hospital, Boston, Massachusetts, USA.,Department of Neurology, Harvard Medical School, Boston, Massachusetts, USA
| | - Charlotte A Hoogstraten
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Nathalie Boddaert
- Université Paris Descartes-Sorbonne Paris Cité, Imagine Institute, Paris, France.,INSERM, U1163, Imagine Institute, Laboratory of Molecular and Pathophysiological Bases of Cognitive Disorders, and INSERM U1000, Paris, France.,Department of Pediatric Radiology, Necker Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Bruno Collinet
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Université Paris-Sud, Université Paris-Saclay, Gif-sur-Yvette, France.,Sorbonne Universités UPMC, UFR 927, Sciences de la Vie, Paris, France.,Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie UMR 7590, Sorbonne Universités, UPMC, Université Paris 06, Paris, France
| | - Gaëlle Martin
- Laboratory of Hereditary Kidney Diseases, INSERM UMR1163, Imagine Institute, Paris, France.,Université Paris Descartes-Sorbonne Paris Cité, Imagine Institute, Paris, France
| | - Dominique Liger
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Université Paris-Sud, Université Paris-Saclay, Gif-sur-Yvette, France
| | - Svjetlana Lovric
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Monica Furlano
- Laboratory of Hereditary Kidney Diseases, INSERM UMR1163, Imagine Institute, Paris, France.,Université Paris Descartes-Sorbonne Paris Cité, Imagine Institute, Paris, France.,Nephrology Department, Fundació Puigvert, IIB Sant Pau, Universitat Autònoma de Barcelona and REDINREN, Barcelona, Spain
| | - I Chiara Guerrera
- Proteomics platform 3P5-Necker, Université Paris Descartes-Structure Fédérative de Recherche Necker, INSERM US24/CNRS UMS3633, Paris, France
| | - Oraly Sanchez-Ferras
- Goodman Cancer Research Centre and Department of Biochemistry, McGill University, Montreal, Quebec, Canada
| | - Jennifer F Hu
- Departments of Chemistry and Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | | | - Sylvia Sanquer
- Department of Metabolomic and Proteomic Biochemistry, Necker Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France.,INSERM UMR-S1124, Paris Descartes-Sorbonne Paris Cité University, Paris, France
| | - Björn Menten
- Center for Medical Genetics, Ghent University Hospital, Ghent, Belgium
| | - Sarah Vergult
- Center for Medical Genetics, Ghent University Hospital, Ghent, Belgium
| | - Nina De Rocker
- Center for Medical Genetics, Ghent University Hospital, Ghent, Belgium
| | - Merlin Airik
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Tobias Hermle
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Shirlee Shril
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Eugen Widmeier
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA.,Department of Medicine, Renal Division, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Heon Yung Gee
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA.,Department of Pharmacology, Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Won-Il Choi
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Carolin E Sadowski
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Werner L Pabst
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Jillian K Warejko
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Ankana Daga
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Tamara Basta
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Université Paris-Sud, Université Paris-Saclay, Gif-sur-Yvette, France
| | - Verena Matejas
- Institute of Human Genetics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Karin Scharmann
- Max Planck Institute for Molecular Biomedicine, Muenster, Germany.,Cells-in-Motion Cluster of Excellence, University of Muenster, Muenster, Germany
| | - Sandra D Kienast
- Max Planck Institute for Molecular Biomedicine, Muenster, Germany.,Cells-in-Motion Cluster of Excellence, University of Muenster, Muenster, Germany
| | - Babak Behnam
- Department of Medical Genetics and Molecular Biology, Iran University of Medical Sciences (IUMS), Tehran, Iran.,Medical Genetics Branch, National Human Genome Research Institute (NHGRI), Undiagnosed Diseases Program, Common Fund, Office of the Director, National Institutes of Health, Bethesda, Maryland, USA
| | - Brendan Beeson
- Department of Diagnostic Imaging, Princess Margaret and King Edward Memorial Hospitals, Perth, Western Australia, Australia
| | | | - Malcolm Bruce
- Department of Diagnostic Imaging, Princess Margaret and King Edward Memorial Hospitals, Perth, Western Australia, Australia
| | - Gaik-Siew Ch'ng
- Department of Genetics, Kuala Lumpur Hospital, Kuala Lumpur, Malaysia
| | - Shuan-Pei Lin
- Department of Pediatric Genetics, MacKay Children's Hospital, Taipei, Taiwan.,Department of Medicine, MacKay Medical College, New Taipei City, Taiwan
| | - Jui-Hsing Chang
- Department of Pediatrics, MacKay Children's Hospital, Taipei, Taiwan
| | - Chao-Huei Chen
- Department of Pediatrics, Taichung Veterans General Hospital, Taichung, Taiwan
| | | | - Patrick M Gaffney
- Department of Arthritis and Clinical Immunology, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, USA
| | - Patrick E Gipson
- Internal Medicine and Pediatrics Divisions of Adult and Pediatric Nephrology, University of Michigan, Ann Arbor, Michigan, USA
| | - Chyong-Hsin Hsu
- Department of Pediatrics, MacKay Children's Hospital, Taipei, Taiwan
| | - Jameela A Kari
- Pediatric Nephrology Center of Excellence and Pediatric Department, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Yu-Yuan Ke
- Department of Pediatrics, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Cathy Kiraly-Borri
- Genetic Services of Western Australia, Princess Margaret Hospital for Children and King Edward Memorial Hospital for Women, Subiaco, Western Australia, Australia
| | - Wai-Ming Lai
- Department of Paediatrics and Adolescent Medicine, Princess Margaret Hospital, Hong Kong, China
| | - Emmanuelle Lemyre
- Service de Génétique Médicale, Département de Pédiatrie, CHU Sainte-Justine, Université de Montréal, Montréal, Québec, Canada
| | - Rebecca Okashah Littlejohn
- Department of Pediatrics, Baylor College of Medicine, San Antonio, Texas, USA.,Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, USA
| | - Amira Masri
- Department of Pediatrics, Division of Child Neurology, Faculty of Medicine, University of Jordan, Amman, Jordan
| | - Mastaneh Moghtaderi
- Chronic Kidney Disease Research Center, Tehran University of Medical Science, Tehran, Iran
| | - Kazuyuki Nakamura
- Department of Pediatrics, Yamagata University School of Medicine, Yamagata, Japan
| | - Fatih Ozaltin
- Department of Pediatric Nephrology, Hacettepe University Faculty of Medicine, Hacettepe University, Ankara, Turkey.,Nephrogenetics Laboratory, Hacettepe University Faculty of Medicine, Hacettepe University, Ankara, Turkey.,Hacettepe University Center for Biobanking and Genomics, Hacettepe University, Ankara, Turkey
| | - Marleen Praet
- Department of Pathology, Ghent University Hospital, Ghent, Belgium
| | - Chitra Prasad
- Department of Genetics, Metabolism and Pediatrics, Western University, London Health Sciences Centre, London, Ontario, Canada
| | | | - Elizabeth R Roeder
- Department of Pediatrics, Baylor College of Medicine, San Antonio, Texas, USA.,Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, USA
| | - Patrick Rump
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | | | - Takashi Shiihara
- Department of Pediatrics, Yamagata University School of Medicine, Yamagata, Japan
| | - Manish D Sinha
- Department of Paediatric Nephrology, Kings College London, Evelina London Children's Hospital, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Neveen A Soliman
- Department of Pediatrics, Center of Pediatric Nephrology &Transplantation, Kasr Al Ainy School of Medicine, Cairo University, Cairo, Egypt.,Egyptian Group for Orphan Renal Diseases, Cairo, Egypt
| | - Kenza Soulami
- Department of Nephrology, Ibn Rochd University Hospital, Casablanca, Morocco
| | - David A Sweetser
- Division of Medical Genetics, Massachusetts General Hospital for Children, Boston, Massachusetts, USA
| | - Wen-Hui Tsai
- Division of Genetics and Metabolism, Department of Pediatrics, Chi Mei Medical Center, Tainan, Taiwan
| | - Jeng-Daw Tsai
- Department of Medicine, MacKay Medical College, New Taipei City, Taiwan.,Department of Pediatrics, MacKay Children's Hospital, Taipei, Taiwan.,Department of Pediatrics, Taipei Medical University Hospital, Taipei, Taiwan.,Department of Pediatrics, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Rezan Topaloglu
- Department of Pediatric Nephrology, Hacettepe University Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Udo Vester
- Department of Pediatrics II, University Hospital Essen, Essen, Germany
| | - David H Viskochil
- Department of Pediatrics, Division of Medical Genetics, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Nithiwat Vatanavicharn
- Division of Medical Genetics, Department of Pediatrics, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Jessica L Waxler
- Division of Medical Genetics, Massachusetts General Hospital for Children, Boston, Massachusetts, USA
| | - Klaas J Wierenga
- Department of Pediatrics, Oklahoma University Health Sciences Center (OUHSC), Oklahoma City, Oklahoma, USA
| | - Matthias T F Wolf
- Division of Pediatric Nephrology, Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Sik-Nin Wong
- Department of Pediatrics and Adolescent Medicine, Tuen Mun Hospital, Tuen Mun, Hong Kong, China
| | - Sebastian A Leidel
- Max Planck Institute for Molecular Biomedicine, Muenster, Germany.,Cells-in-Motion Cluster of Excellence, University of Muenster, Muenster, Germany.,Medical Faculty, University of Muenster, Muenster, Germany
| | - Gessica Truglio
- Epilepsy Genetics Program and F.M. Kirby Neurobiology Center, Department of Neurology, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Peter C Dedon
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA.,Singapore-MIT Alliance for Research and Technology, Infectious Disease IRG, Singapore
| | - Annapurna Poduri
- Epilepsy Genetics Program and F.M. Kirby Neurobiology Center, Department of Neurology, Boston Children's Hospital, Boston, Massachusetts, USA.,Department of Neurology, Harvard Medical School, Boston, Massachusetts, USA
| | - Shrikant Mane
- Department of Genetics, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Richard P Lifton
- Department of Genetics, Yale University School of Medicine, New Haven, Connecticut, USA.,Laboratory of Human Genetics and Genomics, The Rockefeller University, New York, New York, USA
| | - Maxime Bouchard
- Goodman Cancer Research Centre and Department of Biochemistry, McGill University, Montreal, Quebec, Canada
| | - Peter Kannu
- Department of Pediatrics, Division of Clinical and Metabolic Genetics, The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - David Chitayat
- Department of Pediatrics, Division of Clinical and Metabolic Genetics, The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Daniella Magen
- Pediatric Nephrology Institute, Rambam Health Care Campus, Haifa, Israel
| | - Bert Callewaert
- Center for Medical Genetics, Ghent University Hospital, Ghent, Belgium
| | - Herman van Tilbeurgh
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Université Paris-Sud, Université Paris-Saclay, Gif-sur-Yvette, France
| | - Martin Zenker
- Institute of Human Genetics, University Hospital Magdeburg, Magdeburg, Germany
| | - Corinne Antignac
- Laboratory of Hereditary Kidney Diseases, INSERM UMR1163, Imagine Institute, Paris, France.,Université Paris Descartes-Sorbonne Paris Cité, Imagine Institute, Paris, France.,Department of Genetics, Necker Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Friedhelm Hildebrandt
- Department of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
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De Scheerder MA, Rottey S, Mariman A, Praet M, Vogelaers D. How far to investigate presumed psychosomatic symptoms: Lessons from a particular case…. Acta Clin Belg 2017; 72:138-141. [PMID: 27593992 DOI: 10.1080/17843286.2016.1218178] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
We describe a 43-year-old patient with subacute appearance of neurological and atypical complaints of anergia, anorexia and weight loss six months earlier. In spite of several admissions in different hospitals, no underlying somatic cause could be found and he was admitted to a psychiatric hospital with a tentative diagnosis of major depressive disorder. Subsequently, he was referred to the unit of medically unexplained physical symptoms within the department of general internal medicine for assessment by the psychiatrist, involved in this programme. Based on clinical suspicion and red flag symptoms such as involuntary weight loss, a broader internal medicine reassessment, including FDG whole-body PET-CT was requested. Neurological clinical exam showed minor deviations, but neither brain imaging nor a lumbar puncture were contributory. However, FDG PET-CT revealed abnormal moderately to intensely FDG positive lymph nodes in the retroperitoneum. Laparoscopic lymph node biopsy indicated germ cell tumour metastasis. Anti-NMDA antibody positivity allowed a diagnosis of paraneoplastic anti-NMDA encephalitis. Treatment of the underlying disease, a pure seminoma stadium II, consisting of orchidectomy and chemotherapy, resulted in a spectacular regression of 'psychosomatic' symptoms with long-term ability to return to work, and documented disappearance of the anti-NMDA antibody response.
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Affiliation(s)
| | - Sylvie Rottey
- Department of Medical Oncology, University Hospital Ghent, Ghent, Belgium
| | - An Mariman
- Department of General Internal Medicine, University Hospital Ghent, Ghent, Belgium
| | - Marleen Praet
- Department of Pathology, University Hospital Ghent, Ghent, Belgium
| | - Dirk Vogelaers
- Department of General Internal Medicine, University Hospital Ghent, Ghent, Belgium
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18
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Rosskamp M, Van Damme N, De Schutter H, Slabbaert M, Henau K, Praet M, Nackaerts K, Van Meerbeeck J. Real-world treatment for malignant pleural mesothelioma: the Belgian experience. Eur J Cancer 2017. [DOI: 10.1016/s0959-8049(17)30650-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Claeys T, Lumen N, Kumps C, Praet M, De Meerleer G, Rottey S, Ost P, Devisschere P, Villeirs G, Fonteyne V, Decaestecker K. The independent oncological role for cytoreductive nephrectomy in metastatic renal cell carcinoma: Prognostic features in the era of targeted therapies. Urol Oncol 2017; 35:152.e13-152.e22. [PMID: 28153420 DOI: 10.1016/j.urolonc.2016.10.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Revised: 06/16/2016] [Accepted: 10/16/2016] [Indexed: 10/20/2022]
Abstract
OBJECTIVES To describe the effects of cytoreductive nephrectomy (CN) on the natural course of metastatic renal cell carcinoma (mRCC). CN appears to stabilize metastatic lesions in mRCC in a subgroup of patients and we hypothesize that systemic treatment might be deferred in these patients with stable disease after CN. SUBJECTS AND METHODS Overall, 45 patients with mRCC who underwent CN and subsequent oncologic follow-up were included in this retrospective, single-center analysis. After CN, patients were followed at least every 3 months with clinical evaluation, contrast-enhanced computerized tomography scan of chest and abdomen, with additional imaging if needed. At 3 months, patients were radiographically evaluated and categorized into nonresponders (death or progression) or responders (stable disease or remission). Kaplan-Meier and Cox proportional hazards regression statistics were used to describe prognostic factors for overall survival (OS) and systemic therapy-free survival (STFS). RESULTS Median OS was 31(3-121) months. Further, 24 (53.3%) and 21 (46.7%) patients were classified as responders and nonresponders at 3 months, respectively. Responders had a significant better 2-year OS compared with nonresponders (81.7% vs. 26.5%, P = 0.005). Responders also had a better 2-year STFS (40.3% vs. 6.3%, P = 0.005). On Cox regression analysis, worse OS was found to be associated with low preoperative hemoglobin levels, the absence of postoperative radiographical response, and the presence of non-clear cell pathology. The presence of postoperative radiographical response, normal preoperative lactate dehydrogenase levels, the presence of a single metastasis, and performing metastasis-directed therapy was found to be associated with a longer systemic therapy-free period. CONCLUSION A beneficial oncologic response is observed in approximately half of the patients undergoing CN. Absence of radiographic progression at 3 months is an important marker for OS and STFS. Therefore, systemic treatment might be postponed in selected patients.
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Affiliation(s)
- Tom Claeys
- Department of Urology, Ghent University Hospital, Gent, Belgium.
| | - Nicolaas Lumen
- Department of Urology, Ghent University Hospital, Gent, Belgium
| | - Candy Kumps
- Department of Urology, Ghent University Hospital, Gent, Belgium
| | - Marleen Praet
- Department of Pathology, Ghent University Hospital, Gent, Belgium
| | - Gert De Meerleer
- Department of Radiotherapy, Ghent University Hospital, Gent, Belgium
| | - Sylvie Rottey
- Department of Oncology, Ghent University Hospital, Gent, Belgium
| | - Piet Ost
- Department of Radiotherapy, Ghent University Hospital, Gent, Belgium
| | | | - Geert Villeirs
- Department of Radiology, Ghent University Hospital, Gent, Belgium
| | - Valerie Fonteyne
- Department of Radiotherapy, Ghent University Hospital, Gent, Belgium
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Poelaert F, Kumps C, Lumen N, Verschuere S, Libbrecht L, Praet M, Rottey S, Claeys T, Ost P, Decaestecker K, De Meerleer G, Van Praet C. Androgen Receptor Gene Copy Number and Protein Expression in Treatment-Naïve Prostate Cancer. Urol Int 2017; 99:222-228. [PMID: 28052297 DOI: 10.1159/000455158] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Accepted: 12/13/2016] [Indexed: 11/19/2022]
Abstract
OBJECTIVES To evaluate the androgen receptor (AR) gene copy number in androgen deprivation therapy (ADT) treatment-naïve prostate cancer (PCa) patients and to evaluate the corresponding AR protein expression and assess the association between these features and prognostic factors. MATERIALS AND METHODS Chromosome X and AR gene copy number, using fluorescence-in-situ-hybridization, and epithelial-stromal AR expression, using AR immunohistochemistry, were analyzed in 62 ADT treatment-naïve PCa patients and 8 castration-refractory patients. RESULTS In ADT treatment-naïve PCa patients, the AR expression was higher in tumor epithelial cells versus surrounding stromal cells (p < 0.001) and versus normal epithelium in the same patient (p = 0.043). The difference between tumoral AR expression and expression in normal epithelium was higher in patients with ≥15% of tumor cells with increased AR copy number (p = 0.019). Peritumoral stroma had lower AR expression in patients with lymph-node or distant metastases compared to those without metastases (p = 0.038). CONCLUSIONS This research evaluates the link between AR gene status, expression profile, and possible prognostic factors. Furthermore, it highlights the importance of the peritumoral environment in PCa. Additional research is needed to further clarify the role of stromal AR in PCa dissemination and identify possible therapeutic strategies to target this mechanism.
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Affiliation(s)
- Filip Poelaert
- Department of Urology, Ghent University Hospital, Ghent, Belgium
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21
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Rosskamp M, De Schutter H, Slabbaert M, Henau K, Praet M, Van Meerbeeck J, Nackaerts K, Van Eycken L. P3.03-049 Optimization of Malignant Mesothelioma Registration at the Belgian Cancer Registry. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2016.11.1948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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22
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De Visschere PJL, Vral A, Perletti G, Pattyn E, Praet M, Magri V, Villeirs GM. Multiparametric magnetic resonance imaging characteristics of normal, benign and malignant conditions in the prostate. Eur Radiol 2016; 27:2095-2109. [DOI: 10.1007/s00330-016-4479-z] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Revised: 06/16/2016] [Accepted: 06/21/2016] [Indexed: 01/21/2023]
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23
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Bolar N, Golzio C, Živná M, Hayot G, Van Hemelrijk C, Schepers D, Vandeweyer G, Hoischen A, Huyghe J, Raes A, Matthys E, Sys E, Azou M, Gubler MC, Praet M, Van Camp G, McFadden K, Pediaditakis I, Přistoupilová A, Hodaňová K, Vyleťal P, Hartmannová H, Stránecký V, Hůlková H, Barešová V, Jedličková I, Sovová J, Hnízda A, Kidd K, Bleyer A, Spong R, Vande Walle J, Mortier G, Brunner H, Van Laer L, Kmoch S, Katsanis N, Loeys B. Heterozygous Loss-of-Function SEC61A1 Mutations Cause Autosomal-Dominant Tubulo-Interstitial and Glomerulocystic Kidney Disease with Anemia. Am J Hum Genet 2016; 99:174-87. [PMID: 27392076 PMCID: PMC5005467 DOI: 10.1016/j.ajhg.2016.05.028] [Citation(s) in RCA: 104] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Accepted: 05/30/2016] [Indexed: 02/08/2023] Open
Abstract
Autosomal-dominant tubulo-interstitial kidney disease (ADTKD) encompasses a group of disorders characterized by renal tubular and interstitial abnormalities, leading to slow progressive loss of kidney function requiring dialysis and kidney transplantation. Mutations in UMOD, MUC1, and REN are responsible for many, but not all, cases of ADTKD. We report on two families with ADTKD and congenital anemia accompanied by either intrauterine growth retardation or neutropenia. Ultrasound and kidney biopsy revealed small dysplastic kidneys with cysts and tubular atrophy with secondary glomerular sclerosis, respectively. Exclusion of known ADTKD genes coupled with linkage analysis, whole-exome sequencing, and targeted re-sequencing identified heterozygous missense variants in SEC61A1-c.553A>G (p.Thr185Ala) and c.200T>G (p.Val67Gly)-both affecting functionally important and conserved residues in SEC61. Both transiently expressed SEC6A1A variants are delocalized to the Golgi, a finding confirmed in a renal biopsy from an affected individual. Suppression or CRISPR-mediated deletions of sec61al2 in zebrafish embryos induced convolution defects of the pronephric tubules but not the pronephric ducts, consistent with the tubular atrophy observed in the affected individuals. Human mRNA encoding either of the two pathogenic alleles failed to rescue this phenotype as opposed to a complete rescue by human wild-type mRNA. Taken together, these findings provide a mechanism by which mutations in SEC61A1 lead to an autosomal-dominant syndromic form of progressive chronic kidney disease. We highlight protein translocation defects across the endoplasmic reticulum membrane, the principal role of the SEC61 complex, as a contributory pathogenic mechanism for ADTKD.
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Bruyneel J, Van Dorpe J, Praet M, Matthys B, Van Roy N, Ferdinande L, Creytens D. Monosomy 22 and partial loss of INI1 expression in a biphasic synovial sarcoma with an Ewing sarcoma-like poorly differentiated component: Report of a case. Pathol Res Pract 2016; 212:658-64. [PMID: 27118264 DOI: 10.1016/j.prp.2016.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2015] [Revised: 04/03/2016] [Accepted: 04/12/2016] [Indexed: 10/21/2022]
Abstract
Poorly differentiated synovial sarcoma (PDSS) is a less common subtype of synovial sarcoma (SS) associated with a poor prognosis. We present a case of a SS with a poorly differentiated component that resembles Ewing sarcoma (ES). Initial immunohistochemical staining revealed a characteristic and strong expression of transducin-like enhancer of split 1 (TLE1) and weak to absent expression of integrase integrator 1 (INI1) staining. Stainings for keratin and epithelial membrane antigen (EMA) were negative in the tumoral lesion. Fluorescence In Situ Hybridization (FISH) analysis showed a rearrangement of the synaptotagmin (SYT) gene, confirming the diagnosis of SS. FISH analysis for the EWS RNA-binding protein 1 (EWSR1) gene revealed monoallelic loss of EWSR1. This finding was confirmed by an array comparative genomic hybridization (aCGH), showing complete loss of chromosome 22. Based on literature review, showing only a handful of cases of cytogenetically studied SS with loss of chromosome 22, this is probably a rare event in SS. Therefore, we assume that monoallelic loss of chromosome 22 cannot fully elaborate the underlying mechanism of the INI1 staining pattern in all SS, but it could account for the weak to absent INI1 staining in at least some cases.
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Affiliation(s)
- Jasper Bruyneel
- Department of Pathology, Ghent University and Ghent University Hospital, Ghent, Belgium.
| | - Jo Van Dorpe
- Department of Pathology, Ghent University and Ghent University Hospital, Ghent, Belgium
| | - Marleen Praet
- Department of Pathology, Ghent University and Ghent University Hospital, Ghent, Belgium
| | - Bart Matthys
- Department of Pathology, Ghent University and Ghent University Hospital, Ghent, Belgium
| | - Nadine Van Roy
- Department of Medical Genetics, Ghent University and Ghent University Hospital, Ghent, Belgium
| | - Liesbeth Ferdinande
- Department of Pathology, Ghent University and Ghent University Hospital, Ghent, Belgium
| | - David Creytens
- Department of Pathology, Ghent University and Ghent University Hospital, Ghent, Belgium
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Arbyn M, Broeck DV, Benoy I, Bogers J, Depuydt C, Praet M, Sutter PD, Hoorens A, Hauben E, Poppe W, Van Ranst M, Delvenne P, Gofflot S, Pétein M, Engelen F, Vanneste A, Beeck LOD, Damme PV, Temmerman M, Weyers S. Surveillance of effects of HPV vaccination in Belgium. Cancer Epidemiol 2016; 41:152-8. [PMID: 26895623 DOI: 10.1016/j.canep.2015.12.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Revised: 11/19/2015] [Accepted: 12/22/2015] [Indexed: 01/27/2023]
Abstract
BACKGROUND Early effects of HPV (human papillomavirus) vaccination are reflected by changes observable in young women attending cervical cancer screening. SUBJECT AND METHODS The SEHIB study included HPV geno-typing of ∼6000 continuous and 650 pathological cervical cell specimen as well as biopsies, collected from women in Belgium in 2010-2014. Data were linked to vaccination status. RESULTS HPV vaccination offered protection among women aged <30years against infection with HPV16 (vaccine effectiveness [VE]=67%, 95% CI: 48-79%), HPV18 (VE=93%, 95% CI: 52-99%), and high-risk HPV (VE=16%, 95% CI: 2-29%). Vaccination protected also against cytological lesions. Vaccination protected against histologically confirmed lesions: significantly lower absolute risks of CIN1+ (risk difference [RD]=-1.6%, 95% CI: -2.6% to -0.7%) and CIN3+ associated with HPV16/18 (RD=-0.3%, 95% CI -0.6% to -0.1%). Vaccine effectiveness decreased with age. Protection against HPV16 and 18 infection was significant in all age groups, however no protection was observed against cytological lesions associated with these types in age-group 25-29. CONCLUSION The SEHIB study demonstrates the effectiveness of HPV vaccination in Belgian young women in particular in age group 18-19. Declining effectiveness with increasing age may be explained by higher tendency of women already exposed to infection to get the vaccine.
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Affiliation(s)
- Marc Arbyn
- Unit of Cancer Epidemiology/Belgian Cancer Centre, Scientific Institute of Public Health, J. Wytsmanstreet 14, B1050 Brussels, Belgium.
| | - Davy Vanden Broeck
- International Centre for Reproductive Health (ICRH), Ghent University, Ghent, Belgium; Algemeen Medisch Labo, Sonic Healtcare, Antwerp, Belgium; AMBIOR, Laboratory for Cell Biology & Histology, University of Antwerp, Antwerp, Belgium
| | - Ina Benoy
- Algemeen Medisch Labo, Sonic Healtcare, Antwerp, Belgium; AMBIOR, Laboratory for Cell Biology & Histology, University of Antwerp, Antwerp, Belgium
| | - Johannes Bogers
- Algemeen Medisch Labo, Sonic Healtcare, Antwerp, Belgium; AMBIOR, Laboratory for Cell Biology & Histology, University of Antwerp, Antwerp, Belgium
| | | | - Marleen Praet
- N. Goormachtigh Institute for Pathology, Ghent University, Ghent, Belgium
| | - Philippe De Sutter
- Department of Gynaecology & Oncology, UZ Brussel, Free University of Brussels, Brussels, Belgium
| | | | | | - Willy Poppe
- Department of Gynaecology and Obstetrics, UZ Leuven, Leuven, Belgium
| | - Marc Van Ranst
- Department of Microbiology and Immunology, Rega Institute, KU Leuven, Leuven, Belgium
| | | | | | - Michel Pétein
- Institut de Pathologie et de Génétique, Charlerloi, Belgium
| | | | | | | | - Pierre Van Damme
- Vaccine & Infectious Disease Institute (VAXINFECTIO), Antwerp University, Antwerp, Belgium
| | - Marleen Temmerman
- International Centre for Reproductive Health (ICRH), Ghent University, Ghent, Belgium; Reproductive Health and Research, World Health Organization, Geneva, Switzerland; Department of Gynaecology and Obstetrics, Ghent University, Ghent, Belgium
| | - Steven Weyers
- Department of Gynaecology and Obstetrics, Ghent University, Ghent, Belgium
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Luyeye Mvila G, Batalansi D, Praet M, Marchal G, Laenen A, Christiaens MR, Brouckaert O, Ali-Risasi C, Neven P, Van Ongeval C. Prognostic features of breast cancer differ between women in the Democratic Republic of Congo and Belgium. Breast 2015; 24:642-8. [PMID: 26279132 DOI: 10.1016/j.breast.2015.07.031] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Revised: 05/29/2015] [Accepted: 07/16/2015] [Indexed: 01/24/2023] Open
Abstract
OBJECTIVES Compared to European women, breast cancers in African women present at a younger age, with a higher tumor grade and are more often estrogen receptor (ER)/progesterone receptor (PR) negative. We here investigate the histopathological and immunohistochemical characteristics (ER, PR and human epidermal growth receptor 2 (HER2)) and the proportion of triple negative (Tneg) invasive breast cancers from an unselected series of patients diagnosed in Kinshasa, and compare them to a population of Caucasian women with a palpable breast cancer. MATERIALS AND METHODS From 2010 till 2013, during the first breast cancer awareness campaign, organized in Kinshasa, 87 patients were diagnosed with invasive breast cancer. Diagnose was based on core biopsy. The control group consisted of Caucasian women (University Hospitals of Leuven, Belgium) with a palpable mass, diagnosed between 2000 till 2009, treated with surgery of which the histopathological and immunohistochemical characteristics were collected on excision specimens. Each patient in the Kinshasa group was matched based on age and tumor size to one or more patients of the Leuven database. Differences between both groups with respect to hormone receptors (ER, PR, HER2, Tneg) or grade are presented as relative risks (RR). The analysis is based on a log-binomial model accounting for clustering through matching by a random intercept for cluster. Differences between both groups with respect to hormone receptors correcting for grade is performed by the inclusion of grade as a covariate in the model. RESULTS After adjusting for age, tumor volume and tumor grade, ER was more frequently negative (RR = 0.71, p < 0.001), with a trend in the same direction for PR (RR = 0.87, p = 0.057), and HER2 more often positive (RR = 1.60, p = 0.015) compared to the group from the University Hospitals of Leuven. There was no difference in the proportion of breast cancers being triple negative. Sub-analysis showed that the higher HER2 positive rate was only observed in older patients (≥50y: RR = 2.07, p = 0.007) whereas no difference in HER2 positive rate was found in younger patients (<50y: RR = 1.30, p = 0.358). A higher ER negative rate was observed in both age groups, however more pronounced in older patients (≥50y: RR = 0.64, p = 0.001; <50y: RR = 0.79, p = 0.018). CONCLUSION Breast cancer in women of Kinshasa presents at younger age and is more aggressive (more frequently ER negative and HER2 positive) compared to Caucasian women and this is more pronounced in older women (>50y). Only the ER results were concordant with the results of two similar studies (comparing an African with a European group), but were different when compared to studies on African-American women with breast cancer. This information is very important considering the treatment option: as more tumors are ER negative, endocrine therapy cannot be given while chemotherapy is often too expensive.
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Affiliation(s)
- Gertrude Luyeye Mvila
- General Hospital of Kinshasa, Kasavubu University, University of Lubumbashi, Democratic Republic of Congo; Faculty of Medicine, KU Leuven, Herestraat 49, Leuven, Belgium.
| | - Donatien Batalansi
- General Hospital of Kinshasa, Avenue Colonel Ebeya, PB 169, Kinshasa, Democratic Republic of Congo.
| | - Marleen Praet
- Department of Pathology, University Hospital of Ghent & Ghent University, De Pintelaan 185, Ghent, Belgium.
| | - Guy Marchal
- Department of Radiology, UZ Leuven, Herestraat 49, Leuven, Belgium; Department of Imaging and Pathology, KU Leuven, Herestraat 49, Leuven, Belgium.
| | - Annouschka Laenen
- Leuven Biostatistics and Statistical Bioinformatics Centre (L-BioStat), Kapucijnenvoer 35 Building D Box 7001, Leuven, Belgium.
| | | | - Olivier Brouckaert
- Department of Obstetrics and Gynaecology, Jan Yperman Hospital, Briekestraat 12, Ypres, Belgium.
| | - Catherine Ali-Risasi
- Department of Pathology, University Hospital of Ghent & Ghent University, De Pintelaan 185, Ghent, Belgium.
| | - Patrick Neven
- Department of Obstetrics and Gynaecology, UZ Leuven, Herestraat 49, Leuven, Belgium.
| | - Chantal Van Ongeval
- Department of Radiology, UZ Leuven, Herestraat 49, Leuven, Belgium; Department of Imaging and Pathology, KU Leuven, Herestraat 49, Leuven, Belgium.
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Ali-Risasi C, Verdonck K, Padalko E, Vanden Broeck D, Praet M. Prevalence and risk factors for cancer of the uterine cervix among women living in Kinshasa, the Democratic Republic of the Congo: a cross-sectional study. Infect Agent Cancer 2015; 10:20. [PMID: 26180542 PMCID: PMC4502934 DOI: 10.1186/s13027-015-0015-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2015] [Accepted: 06/25/2015] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Cancer of the uterine cervix is the leading cause of cancer-related death among women in Sub-Saharan Africa, but information from the Democratic Republic of the Congo (DRC) is scarce. The study objectives were to: 1/ assess prevalence of (pre)cancerous cervical lesions in adult women in Kinshasa, 2/ identify associated socio-demographic and behavioural factors and 3/ describe human papillomavirus (HPV) types in cervical lesions. METHODS A cross-sectional study was conducted in Kinshasa. Between 2006 and 2013, four groups of women were recruited. The first two groups were included at HIV screening centres. Group 1 consisted of HIV-positive and group 2 of HIV-negative women. Group 3 was included in large hospitals and group 4 in primary health centres. Pap smears were studied by monolayer technique (Bethesda classification). Low- or high-grade squamous intraepithelial lesions or carcinoma were classified as LSIL+. HPV types were determined by INNO-LiPA®. Bivariate and multivariable analyses (logistic regression and generalised estimating equations (GEE)) were used to assess associations between explanatory variables and LSIL+. RESULTS LSIL+ lesions were found in 76 out of 1018 participants. The prevalence was 31.3 % in group 1 (n = 131 HIV-positive women), 3.9 % in group 2 (n = 128 HIV-negative women), 3.9 % in group 3 (n = 539) and 4.1 % in group 4 (n = 220). The following variables were included in the GEE model but did not reach statistical significance: history of abortion, ≥3 sexual partners and use of chemical products for vaginal care. In groups 3 and 4 where this information was available, the use of plants for vaginal care was associated with LSIL+ (adjusted OR 2.70 (95 % confidence interval 1.04 - 7.01). The most common HPV types among HIV-positive women with ASCUS+ cytology (ASCUS or worse) were HPV68 (12 out of 50 samples tested), HPV35 (12/50), HPV52 (12/50) and HPV16 (10/50). Among women with negative/unknown HIV status, the most common types were HPV52 (10/40), HPV35, (6/40) and HPV18 (5/40). CONCLUSION LSIL+ lesions are frequent among women in Kinshasa. The use of plants for vaginal care deserves attention as a possible risk factor for LSIL+. In this setting, HPV16 is not the most frequent genotype in samples of LSIL+ lesions.
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Affiliation(s)
- Catherine Ali-Risasi
- />Laboratory of Anatomopathology, General Reference Hospital of Kinshasa, Kinshasa, Democratic Republic of the Congo
- />N.Goormaghtigh Institute of Pathology, Ghent University Hospital, De Pintelaan 185, Ghent, Belgium
| | - Kristien Verdonck
- />Institute of Tropical Medicine, Nationalestraat 155, Antwerp, Belgium
| | - Elizaveta Padalko
- />Department of Microbiology, Clinical Chemistry and Immunology, Ghent University Hospital, De Pintelaan 185, Ghent, Belgium
- />Faculty of Medicine and Life Sciences, Hasselt University, Agoralaan Building D, Diepenbeek, Belgium
| | - Davy Vanden Broeck
- />International Centre for Reproductive Health, Ghent University Hospital, De Pintelaan 185, Ghent, Belgium
| | - Marleen Praet
- />N.Goormaghtigh Institute of Pathology, Ghent University Hospital, De Pintelaan 185, Ghent, Belgium
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Spinoit AF, Van Praet C, Groen LA, Van Laecke E, Praet M, Hoebeke P. Congenital Penile Pathology is Associated with Abnormal Development of the Dartos Muscle: A Prospective Study of Primary Penile Surgery at a Tertiary Referral Center. J Urol 2015; 193:1620-4. [DOI: 10.1016/j.juro.2014.10.090] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/17/2014] [Indexed: 10/24/2022]
Affiliation(s)
- A.-F. Spinoit
- Department of Urology and Department of Pathology (MP), Ghent University Hospital, Ghent, Belgium
| | - C. Van Praet
- Department of Urology and Department of Pathology (MP), Ghent University Hospital, Ghent, Belgium
| | - L.-A. Groen
- Department of Urology and Department of Pathology (MP), Ghent University Hospital, Ghent, Belgium
| | - E. Van Laecke
- Department of Urology and Department of Pathology (MP), Ghent University Hospital, Ghent, Belgium
| | - M. Praet
- Department of Urology and Department of Pathology (MP), Ghent University Hospital, Ghent, Belgium
| | - P. Hoebeke
- Department of Urology and Department of Pathology (MP), Ghent University Hospital, Ghent, Belgium
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Padalko E, Ali-Risasi C, Van Renterghem L, Bamelis M, De Mey A, Sturtewagen Y, Vastenavond H, Vanden Broeck D, Weyers S, Praet M. Evaluation of the clinical significance of human papillomavirus (HPV) 53. Eur J Obstet Gynecol Reprod Biol 2015; 191:7-9. [PMID: 26026728 DOI: 10.1016/j.ejogrb.2015.04.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Revised: 03/11/2015] [Accepted: 04/08/2015] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Human papillomaviruses (HPV) are classified according to their potential for the development of cervical neoplasia. However, the carcinogenicity of HPV types forms an evolving continuum based on the newly available data especially regarding the role of probable and possible high-risk HPV types (pHR-HPV). The objective of the present work was to evaluate clinical significance of the pHR-HPV53. STUDY DESIGN An observational cohort study of potential aetiological association between infection with HPV53 and development of high-grade cervical cytology was performed. The study was conducted in two geographically remoted hospitals, in Belgium and Democratic Republic of Congo, as an attempt to collect data from regions with different geographical distribution of HPV genotypes. The samples were taken during routine gynaecological visit in outpatient clinics of both participating hospitals. RESULTS A total of 2283 liquid-Pap samples were taken from 1465 women at Ghent University Hospital, Belgium, and from 660 women at General Hospital and Ngaliema Hospital of Kinshasa, DRC. "HPV53-only"-pattern as evaluated by full HPV genotyping was found in samples from only 34 (1.6%) samples. The initial cytology represented next to non-dysplastic, undetermined and low-grade lesions also high-grade lesions (12%). For 26 (76.5%) from the 34 women presented with "HPV53-only"-pattern follow-up results were available showing no progression to malignancy. CONCLUSION Our findings support very low to lacking carcinogenic potential of HPV53. Recognising extreme rarity in cervical cancer next to high prevalence in general population of HPV53, further studies investigating progression to high-grade lesions are needed to elucidate the oncogenic potential of pHR-HPV53.
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Affiliation(s)
- Elizaveta Padalko
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University Hospital, De Pintelaan 185, 9000 Ghent, Belgium; School of Life Sciences, Hasselt University, Agoralaan Building D, 3590 Diepenbeek, Belgium
| | - Catherine Ali-Risasi
- Department of Pathology, Ghent University Hospital, De Pintelaan 185, 9000 Ghent, Belgium
| | - Lieve Van Renterghem
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University Hospital, De Pintelaan 185, 9000 Ghent, Belgium
| | - Mieke Bamelis
- Department of Pathology, Ghent University Hospital, De Pintelaan 185, 9000 Ghent, Belgium
| | - Anja De Mey
- Department of Pathology, Ghent University Hospital, De Pintelaan 185, 9000 Ghent, Belgium
| | - Yolande Sturtewagen
- Department of Pathology, Ghent University Hospital, De Pintelaan 185, 9000 Ghent, Belgium
| | - Hilde Vastenavond
- Department of Pathology, Ghent University Hospital, De Pintelaan 185, 9000 Ghent, Belgium
| | - Davy Vanden Broeck
- Department of Gynecology, Ghent University Hospital, De Pintelaan 185, 9000 Ghent, Belgium.
| | - Steven Weyers
- Department of Gynecology, Ghent University Hospital, De Pintelaan 185, 9000 Ghent, Belgium
| | - Marleen Praet
- Department of Pathology, Ghent University Hospital, De Pintelaan 185, 9000 Ghent, Belgium
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Bonadio I, Colle I, Geerts A, Smeets P, Berardi G, Praet M, Rogiers X, de Hemptinne B, Van Vlierberghe H, Troisi RI. Liver transplantation for hepatocellular carcinoma comparing the Milan, UCSF, and Asan criteria: long-term follow-up of a Western single institutional experience. Clin Transplant 2015; 29:425-33. [DOI: 10.1111/ctr.12534] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/24/2015] [Indexed: 12/24/2022]
Affiliation(s)
- Italo Bonadio
- Department of General, Hepatobiliary and Liver Transplantation Surgery; Ghent University Hospital Medical School; Ghent Belgium
| | - Isabelle Colle
- Department of Gastroenterology; Ghent University Hospital Medical School; Ghent Belgium
| | - Anja Geerts
- Department of Gastroenterology; Ghent University Hospital Medical School; Ghent Belgium
| | - Peter Smeets
- Department of Radiology; Ghent University Hospital Medical School; Ghent Belgium
| | - Giammauro Berardi
- Department of General, Hepatobiliary and Liver Transplantation Surgery; Ghent University Hospital Medical School; Ghent Belgium
| | - Marleen Praet
- Department of Anatomopathology; Ghent University Hospital Medical School; Ghent Belgium
| | - Xavier Rogiers
- Department of General, Hepatobiliary and Liver Transplantation Surgery; Ghent University Hospital Medical School; Ghent Belgium
| | - Bernard de Hemptinne
- Department of General, Hepatobiliary and Liver Transplantation Surgery; Ghent University Hospital Medical School; Ghent Belgium
| | - Hans Van Vlierberghe
- Department of Gastroenterology; Ghent University Hospital Medical School; Ghent Belgium
| | - Roberto I. Troisi
- Department of General, Hepatobiliary and Liver Transplantation Surgery; Ghent University Hospital Medical School; Ghent Belgium
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Lieveld M, Padalko E, Praet M, Vanden Broeck D. A case of HPV-53-related cervical cancer in an elderly patient. Clin Interv Aging 2014; 9:1933-4. [PMID: 25419122 PMCID: PMC4234393 DOI: 10.2147/cia.s71262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Affiliation(s)
- Marusya Lieveld
- Department of Uro/gynaecology, Ghent University Hospital, Ghent, Belgium
| | - Elizaveta Padalko
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University Hospital, Ghent, Belgium ; School of Life Sciences, Hasselt University, Diepenbeek, Belgium
| | - Marleen Praet
- N. Goormaghtigh Institute of Pathology, Ghent University Hospital, Ghent, Belgium
| | - Davy Vanden Broeck
- Department of Uro/gynaecology, Ghent University Hospital, Ghent, Belgium
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De Ruyck K, Duprez F, Ferdinande L, Mbah C, Rios-Velazquez E, Hoebers F, Praet M, Deron P, Bonte K, Speel EJ, Libbrecht L, De Neve W, Lambin P, Thierens H. A let-7 microRNA polymorphism in the KRAS 3'-UTR is prognostic in oropharyngeal cancer. Cancer Epidemiol 2014; 38:591-8. [PMID: 25127693 DOI: 10.1016/j.canep.2014.07.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2014] [Revised: 07/16/2014] [Accepted: 07/23/2014] [Indexed: 01/05/2023]
Abstract
INTRODUCTION This study aimed to investigate the effect of genetic polymorphisms in miRNA sequences, miRNA target genes and miRNA processing genes as additional biomarkers to HPV for prognosis in oropharyngeal squamous cell carcinoma (OPSCC) patients. Secondarily, the prevalence of HPV-associated OPSCC in a European cohort was mapped. METHODS OPSCC patients (n=122) were genotyped for ten genetic polymorphisms in pre-miRNAs (pre-mir-146a, pre-mir-196a2), in miRNA biosynthesis genes (Drosha, XPO5) and in miRNA target genes (KRAS, SMC1B). HPV status was assessed by p16 immunohistochemistry (IHC) and high-risk HPV in situ hybridization (ISH) or by p16 IHC and PCR followed by enzyme-immunoassay (EIA). Overall and disease specific survival were analysed using Kaplan-Meier plots (log-rank test). Cox proportional hazard model was used to calculate hazard ratios (HR). RESULTS The overall HPV prevalence rate in our Belgian/Dutch cohort was 27.9%. Patients with HPV(+) tumours had a better 5-years overall survival (78% vs. 46%, p=0.001) and a better 5-years disease specific survival (90% vs. 70%, p=0.016) compared to patients with HPV(-) tumours. In multivariate Cox analysis including clinical, treatment and genetic parameters, HPV negativity (HR=3.89, p=0.005), advanced T-stage (HR=1.81, p=0.050), advanced N-stage (HR=5.86, p=0.001) and >10 pack-years of smoking (HR=3.45, p=0.012) were significantly associated with reduced overall survival. The variant G-allele of the KRAS-LCS6 polymorphism was significantly associated with a better overall survival (HR=0.40, p=0.031). CONCLUSIONS Our results demonstrate that OPSCC patients with the KRAS-LCS6 variant have a better outcome and suggest that this variant may be used as a prognostic biomarker for OPSCC.
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Affiliation(s)
- Kim De Ruyck
- Department of Basic Medical Sciences, Ghent University, Proeftuinstraat 86, B-9000 Gent, Belgium.
| | - Fréderic Duprez
- Department of Radiotherapy, Ghent University Hospital, De Pintelaan 185, B-9000 Gent, Belgium
| | - Liesbeth Ferdinande
- Department of Pathology, Ghent University Hospital, De Pintelaan 185, B-9000 Gent, Belgium
| | - Chamberlain Mbah
- Department of Basic Medical Sciences, Ghent University, Proeftuinstraat 86, B-9000 Gent, Belgium
| | - Emmanuel Rios-Velazquez
- Department of Radiation Oncology (MAASTRO Clinic), GROW School for Oncology and Developmental Biology, Maastricht University Medical Center, Doctor Tanslaan 12, 6229 ET Maastricht, The Netherlands
| | - Frank Hoebers
- Department of Radiation Oncology (MAASTRO Clinic), GROW School for Oncology and Developmental Biology, Maastricht University Medical Center, Doctor Tanslaan 12, 6229 ET Maastricht, The Netherlands
| | - Marleen Praet
- Department of Pathology, Ghent University Hospital, De Pintelaan 185, B-9000 Gent, Belgium
| | - Philippe Deron
- Department of Head and Neck Surgery, Ghent University Hospital, De Pintelaan 185, B-9000 Gent, Belgium
| | - Katrien Bonte
- Department of Head and Neck Surgery, Ghent University Hospital, De Pintelaan 185, B-9000 Gent, Belgium
| | - Ernst-Jan Speel
- Department of Pathology, GROW School for Oncology and Developmental Biology, Maastricht University Medical Center, Doctor Tanslaan 12, 6229 ET Maastricht, The Netherlands
| | - Louis Libbrecht
- Department of Pathology, Ghent University Hospital, De Pintelaan 185, B-9000 Gent, Belgium
| | - Wilfried De Neve
- Department of Radiotherapy, Ghent University Hospital, De Pintelaan 185, B-9000 Gent, Belgium
| | - Philippe Lambin
- Department of Radiation Oncology (MAASTRO Clinic), GROW School for Oncology and Developmental Biology, Maastricht University Medical Center, Doctor Tanslaan 12, 6229 ET Maastricht, The Netherlands
| | - Hubert Thierens
- Department of Basic Medical Sciences, Ghent University, Proeftuinstraat 86, B-9000 Gent, Belgium
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Van Bockstal M, Lambein K, De Wever O, Praet M, Cocquyt V, Van den Broecke R, Braems G, Denys H, Libbrecht L. Stromal Characteristics are Potential Prognostic Markers for Ipsilateral Locoregional Recurrence in Ductal Carcinoma in Situ (DCIS). Ann Oncol 2014. [DOI: 10.1093/annonc/mdu066.6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Benamrouz S, Conseil V, Chabé M, Praet M, Audebert C, Blervaque R, Guyot K, Gazzola S, Mouray A, Chassat T, Delaire B, Goetinck N, Gantois N, Osman M, Slomianny C, Dehennaut V, Lefebvre T, Viscogliosi E, Cuvelier C, Dei-Cas E, Creusy C, Certad G. Cryptosporidium parvum-induced ileo-caecal adenocarcinoma and Wnt signaling in a mouse model. Dis Model Mech 2014; 7:693-700. [PMID: 24652769 PMCID: PMC4036476 DOI: 10.1242/dmm.013292] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Cryptosporidium species are apicomplexan protozoans that are found worldwide. These parasites constitute a large risk to human and animal health. They cause self-limited diarrhea in immunocompetent hosts and a life-threatening disease in immunocompromised hosts. Interestingly, Cryptosporidium parvum has been related to digestive carcinogenesis in humans. Consistent with a potential tumorigenic role of this parasite, in an original reproducible animal model of chronic cryptosporidiosis based on dexamethasone-treated or untreated adult SCID mice, we formerly reported that C. parvum (strains of animal and human origin) is able to induce digestive adenocarcinoma even in infections induced with very low inoculum. The aim of this study was to further characterize this animal model and to explore metabolic pathways potentially involved in the development of C. parvum-induced ileo-caecal oncogenesis. We searched for alterations in genes or proteins commonly involved in cell cycle, differentiation or cell migration, such as β-catenin, Apc, E-cadherin, Kras and p53. After infection of animals with C. parvum we demonstrated immunohistochemical abnormal localization of Wnt signaling pathway components and p53. Mutations in the selected loci of studied genes were not found after high-throughput sequencing. Furthermore, alterations in the ultrastructure of adherens junctions of the ileo-caecal neoplastic epithelia of C. parvum-infected mice were recorded using transmission electron microscopy. In conclusion, we found for the first time that the Wnt signaling pathway, and particularly the cytoskeleton network, seems to be pivotal for the development of the C. parvum-induced neoplastic process and cell migration of transformed cells. Furthermore, this model is a valuable tool in understanding the host-pathogen interactions associated with the intricate infection process of this parasite, which is able to modulate host cytoskeleton activities and several host-cell biological processes and remains a significant cause of infection worldwide.
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Affiliation(s)
- Sadia Benamrouz
- Ecologie et biodiversité, Faculté Libre des Sciences et Technologies de Lille, Université Catholique de Lille, Université Lille Nord de France, 59020 Lille, France. Biologie et Diversité des Pathogènes Eucaryotes Emergents (BDEEP), Centre d'Infection et d'Immunité de Lille (CIIL), Institut Pasteur de Lille, INSERM U1019, CNRS UMR 8402, Université Lille Nord de France, 59021 Lille, France
| | - Valerie Conseil
- Ecologie et biodiversité, Faculté Libre des Sciences et Technologies de Lille, Université Catholique de Lille, Université Lille Nord de France, 59020 Lille, France. Biologie et Diversité des Pathogènes Eucaryotes Emergents (BDEEP), Centre d'Infection et d'Immunité de Lille (CIIL), Institut Pasteur de Lille, INSERM U1019, CNRS UMR 8402, Université Lille Nord de France, 59021 Lille, France
| | - Magali Chabé
- Biologie et Diversité des Pathogènes Eucaryotes Emergents (BDEEP), Centre d'Infection et d'Immunité de Lille (CIIL), Institut Pasteur de Lille, INSERM U1019, CNRS UMR 8402, Université Lille Nord de France, 59021 Lille, France. Faculté de Pharmacie, Université Lille Nord de France, 59021 Lille, France
| | - Marleen Praet
- Academic Department of Pathology, Ghent University, 9000 Ghent, Belgium
| | - Christophe Audebert
- PEGASE-Biosciences, Institut Pasteur de Lille, F-59021 Lille, France. Gene Diffusion, 59501 Douai, France
| | - Renaud Blervaque
- PEGASE-Biosciences, Institut Pasteur de Lille, F-59021 Lille, France. Transcriptomic and Applied Genomic (TAG), Centre d'Infection et d'Immunité de Lille (CIIL), Institut Pasteur de Lille, INSERM U1019, CNRS UMR 8404, Université Lille Nord de France, 59021 Lille, France
| | - Karine Guyot
- Biologie et Diversité des Pathogènes Eucaryotes Emergents (BDEEP), Centre d'Infection et d'Immunité de Lille (CIIL), Institut Pasteur de Lille, INSERM U1019, CNRS UMR 8402, Université Lille Nord de France, 59021 Lille, France
| | - Sophie Gazzola
- Biologie et Diversité des Pathogènes Eucaryotes Emergents (BDEEP), Centre d'Infection et d'Immunité de Lille (CIIL), Institut Pasteur de Lille, INSERM U1019, CNRS UMR 8402, Université Lille Nord de France, 59021 Lille, France
| | - Anthony Mouray
- Plateforme d'Expérimentations et de Hautes Technologies Animales, Institut Pasteur de Lille, 59021 Lille, France
| | - Thierry Chassat
- Plateforme d'Expérimentations et de Hautes Technologies Animales, Institut Pasteur de Lille, 59021 Lille, France
| | - Baptiste Delaire
- Service d'Anatomie et de Cytologie Pathologiques, Groupe Hospitalier de l'Université Catholique de Lille, 59020 Lille, France
| | - Nathalie Goetinck
- Centre Hospitalier Régional et Universitaire de Lille, Université Lille Nord de France, 59000 Lille, France
| | - Nausicaa Gantois
- Biologie et Diversité des Pathogènes Eucaryotes Emergents (BDEEP), Centre d'Infection et d'Immunité de Lille (CIIL), Institut Pasteur de Lille, INSERM U1019, CNRS UMR 8402, Université Lille Nord de France, 59021 Lille, France
| | - Marwan Osman
- Biologie et Diversité des Pathogènes Eucaryotes Emergents (BDEEP), Centre d'Infection et d'Immunité de Lille (CIIL), Institut Pasteur de Lille, INSERM U1019, CNRS UMR 8402, Université Lille Nord de France, 59021 Lille, France. Centre AZM pour la Recherche en Biotechnologie et ses Applications, Laboratoire Microbiologie, Santé et Environnement, Université Libanaise, Tripoli, Lebanon
| | - Christian Slomianny
- Inserm U1003, Laboratoire de Physiologie Cellulaire, Université Lille 1, 59655 Villeneuve d'Ascq CEDEX, France
| | - Vanessa Dehennaut
- Unité de Glycobiologie Structurale et Fonctionnelle, UMR CNRS 8576, IFR 147, Université Lille1, 59650 Villeneuve d'Ascq, France
| | - Tony Lefebvre
- Unité de Glycobiologie Structurale et Fonctionnelle, UMR CNRS 8576, IFR 147, Université Lille1, 59650 Villeneuve d'Ascq, France
| | - Eric Viscogliosi
- Biologie et Diversité des Pathogènes Eucaryotes Emergents (BDEEP), Centre d'Infection et d'Immunité de Lille (CIIL), Institut Pasteur de Lille, INSERM U1019, CNRS UMR 8402, Université Lille Nord de France, 59021 Lille, France
| | - Claude Cuvelier
- Academic Department of Pathology, Ghent University, 9000 Ghent, Belgium
| | - Eduardo Dei-Cas
- Biologie et Diversité des Pathogènes Eucaryotes Emergents (BDEEP), Centre d'Infection et d'Immunité de Lille (CIIL), Institut Pasteur de Lille, INSERM U1019, CNRS UMR 8402, Université Lille Nord de France, 59021 Lille, France. Centre Hospitalier Régional et Universitaire de Lille, Université Lille Nord de France, 59000 Lille, France
| | - Colette Creusy
- Service d'Anatomie et de Cytologie Pathologiques, Groupe Hospitalier de l'Université Catholique de Lille, 59020 Lille, France
| | - Gabriela Certad
- Biologie et Diversité des Pathogènes Eucaryotes Emergents (BDEEP), Centre d'Infection et d'Immunité de Lille (CIIL), Institut Pasteur de Lille, INSERM U1019, CNRS UMR 8402, Université Lille Nord de France, 59021 Lille, France.
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Ali-Risasi C, Mulumba P, Verdonck K, Vanden Broeck D, Praet M. Knowledge, attitude and practice about cancer of the uterine cervix among women living in Kinshasa, the Democratic Republic of Congo. BMC Womens Health 2014; 14:30. [PMID: 24548698 PMCID: PMC3937079 DOI: 10.1186/1472-6874-14-30] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2013] [Accepted: 02/13/2014] [Indexed: 12/29/2022]
Abstract
BACKGROUND Cervical cancer is the most frequent cancer of women in the Democratic Republic of Congo (DRC). Nevertheless, the level of women's awareness about cervical cancer is unknown. Knowledge, attitude and practice (KAP) are important elements for designing and monitoring screening programs. The study purpose was to estimate KAP on cervical cancer and to identify associated factors. METHODS A cross-sectional study was conducted in Kinshasa, DRC, including 524 women aged 16-78 years (median age 28; interquartile range 22-35). The women were interviewed at home by trained field workers using a standardized questionnaire. The women's score on knowledge, attitude and practice were dichotomized as sufficient or insufficient. We used binary and multiple logistic regression to assess associations between obtaining sufficient scores and a series of socio-demographic factors: age, residence, marital status, education, occupation, religion, and parity. RESULTS The women's score on knowledge was not significantly correlated with their score on practice (Spearman's rho = 0.08; P > 0.05). Obtaining a sufficient score on knowledge was positively associated with higher education (adjusted odds ratio (OR) 7.65; 95% confidence interval (95% CI) 3.31-17.66) and formal employment (adjusted OR 3.35; 95% CI 1.85-6.09); it was negatively associated with being single (adjusted OR 0.44; 95% CI 0.24-0.81) and living in the eastern, western and northern zone of Kinshasa compared to the city centre. The attitude score was associated with place of residence (adjusted OR for east Kinshasa: 0.49; 95% CI 0.27-0.86 and for south Kinshasa: 0.48; 95% CI 0.27-0.85) and with religion (adjusted OR 0.55; 95% CI 0.35-0.86 for women with a religion other than Catholicism or Protestantism compared to Catholics). Regarding practice, there were negative associations between a sufficient score on practice and being single (adjusted OR 0.24; 95% CI 0.13-0.41) and living in the eastern zone of the city (adjusted OR 0.39; 95% CI 0.22-0.70). Although 84% of women had heard about cervical cancer, only 9% had ever had a Papanicolaou (Pap) smear test. CONCLUSIONS This study shows a low level of knowledge, attitude and practice on cervical cancer among women in Kinshasa. Increasing women's awareness would be a first step in the long chain of conditions to attain a lower incidence and mortality.
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Affiliation(s)
- Catherine Ali-Risasi
- Laboratory of Anatomopathology, General Reference Hospital of Kinshasa, Kinshasa, Democratic Republic of Congo.
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Van Praet C, Libbrecht L, D'Hondt F, Decaestecker K, Fonteyne V, Verschuere S, Rottey S, Praet M, De Visschere P, Lumen N. Agreement of Gleason score on prostate biopsy and radical prostatectomy specimen: is there improvement with increased number of biopsy cylinders and the 2005 revised Gleason scoring? Clin Genitourin Cancer 2013; 12:160-6. [PMID: 24361055 DOI: 10.1016/j.clgc.2013.11.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Revised: 10/08/2013] [Accepted: 11/08/2013] [Indexed: 12/01/2022]
Abstract
INTRODUCTION The objectives of this study were to assess the agreement of GS on biopsy compared with RP specimens and to assess whether an increased number of biopsy cylinders and the 2005 International Society of Urological Pathology (ISUP) GS modification improved this agreement. MATERIALS AND METHODS Pathological data of biopsy and RP specimens were analyzed in 328 consecutive patients, before (group 1; n = 135) and after (group 2; n = 193) implementation of the 2005 ISUP modification. Additionally, patients had more biopsy cylinders taken in group 2 (mean 10 vs. 6.9). The agreement of GS between biopsy and RP specimens was evaluated using the kappa coefficient. GS was pooled into 3 grades: low- (GS ≤ 6), intermediate- (GS = 7), and high-grade (GS ≥ 8) prostate cancer. RESULTS Kappa coefficient for GS in group 1 and 2 was 0.261 and 0.341, respectively. For tumor grade, this was 0.308 and 0.359 for group 1 and 2, respectively. For RP specimens, there was more agreement between biopsy and RP GS in group 2 compared with group 1 (53.9% vs. 37.8%). Upgrading was almost exclusively (89.5%) seen in patients with biopsy GS ≤ 6 and was lower in group 2 (25.4% vs. 48.1%) because of classification of more intermediate- and high-grade tumors using the 2005 ISUP modification. Taking > 6 biopsy cylinders was associated with better GS and tumor grade agreement. CONCLUSION Extended biopsy template and the 2005 ISUP modification resulted in an improved agreement between biopsy GS and RP GS and a shift toward more aggressive tumors.
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Affiliation(s)
| | - Louis Libbrecht
- Department of Pathology, Ghent University Hospital, Ghent, Belgium
| | | | | | - Valérie Fonteyne
- Department of Radiotherapy, Ghent University Hospital, Ghent, Belgium
| | | | - Sylvie Rottey
- Department of Medical Oncology, Ghent University Hospital, Ghent, Belgium
| | - Marleen Praet
- Department of Pathology, Ghent University Hospital, Ghent, Belgium
| | | | - Nicolaas Lumen
- Department of Urology, Ghent University Hospital, Ghent, Belgium
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Lambein K, Van Bockstal M, Vandemaele L, Geenen S, Rottiers I, Nuyts A, Matthys B, Praet M, Denys H, Libbrecht L. Distinguishing score 0 from score 1+ in HER2 immunohistochemistry-negative breast cancer: clinical and pathobiological relevance. Am J Clin Pathol 2013; 140:561-6. [PMID: 24045554 DOI: 10.1309/ajcp4a7ktayhzsoe] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Abstract
OBJECTIVES To investigate the clinical and pathobiological significance of distinguishing score 0 and score 1+ within the group of immunohistochemistry (IHC)-negative invasive breast cancers. METHODS We studied HER2 status using both IHC and fluorescence in situ hybridization (FISH) in 150 consecutive breast tumors submitted to our laboratory after a negative IHC result in local testing centers. RESULTS We were able to discern a group of score 0 tumors that had a lower HER2 copy number than the group consisting of score 1+ tumors. In contrast with the group of score 1+ tumors, HER2 FISH was consistently negative for both copy number-based and ratio-based tumors without equivocal results. CONCLUSIONS In a setting with stringent quality assurance, score 0 and score 1+ tumors emerge as distinct and clinically important subgroups within the HER2 IHC-negative population.
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Affiliation(s)
- Kathleen Lambein
- Department of Pathology, Ghent University, Ghent, Belgium
- Department of Pathology, Ghent University Hospital, Ghent, Belgium
| | - Mieke Van Bockstal
- Department of Pathology, Ghent University, Ghent, Belgium
- Department of Pathology, Ghent University Hospital, Ghent, Belgium
| | - Lies Vandemaele
- Department of Pathology, Ghent University Hospital, Ghent, Belgium
| | - Sofie Geenen
- Department of Pathology, Ghent University Hospital, Ghent, Belgium
| | | | - Ann Nuyts
- Department of Pathology, Ghent University Hospital, Ghent, Belgium
| | - Bart Matthys
- Department of Pathology, Ghent University Hospital, Ghent, Belgium
| | - Marleen Praet
- Department of Pathology, Ghent University, Ghent, Belgium
- Department of Pathology, Ghent University Hospital, Ghent, Belgium
| | - Hannelore Denys
- Department of Medical Oncology, Ghent University Hospital, Ghent, Belgium
| | - Louis Libbrecht
- Department of Pathology, Ghent University, Ghent, Belgium
- Department of Pathology, Ghent University Hospital, Ghent, Belgium
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Depuydt OE, Daeze C, Benoit D, Praet M, Vermassen E, Decruyenaere M. Diagnostic potential of open lung biopsy in mechanically ventilated patients with diffuse pulmonary infiltrates of unclear aetiology. Anaesth Intensive Care 2013; 41:610-7. [PMID: 23977912 DOI: 10.1177/0310057x1304100506] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Acute respiratory failure with bilateral pulmonary infiltrates is a clinical problem with a wide differential diagnosis. We evaluated whether open lung biopsy offered a diagnosis and therapeutic guidance in cases of unclear diagnosis after non-invasive tests. For this purpose, we reviewed 60 cases of open lung biopsy performed between 2002 and 2009 in patients with acute respiratory failure and bilateral infiltrates at the intensive care unit of Ghent University Hospital. Pathological diagnosis was classified as specific or non-specific and its contribution to therapy and decision-making was evaluated by a panel of three intensive care unit physicians. We found that a specific pathological diagnosis was present in 39 open lung biopsy patients (65%; 95% confidence interval 52 to 76%): idiopathic interstitial pneumonia in 24 patients, malignancy in four patients, pulmonary infectious disease in nine patients, and a combination of specific diagnoses in two patients. Open lung biopsy contributed to patient management in 53 cases (88%) as it led to the initiation, modification or discontinuation of therapeutic drugs in 36, and contributed to the decision to continue or withdraw ventilator support in 17. Complications of open lung biopsy were noted in 14 patients (23%). We conclude that open lung biopsy was a useful diagnostic intervention in of a selected group of patients with acute respiratory failure and bilateral infiltrates of unclear clinical diagnosis, as it offered a specific diagnosis in 65%.
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Affiliation(s)
- O E Depuydt
- Department of Intensive Care, Ghent University Hospital, Ghent, Belgium.
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Gunnarsdottir H, Chiers K, Praet M, Saunders J, Schauvliege S, Vlaminck L. Epithelial inclusion cysts of the frontal bones in three horses. EQUINE VET EDUC 2013. [DOI: 10.1111/eve.12068] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- H. Gunnarsdottir
- Department of Surgery and Anaesthesiology of Large Animals; Ghent University; Merelbeke Belgium
| | - K. Chiers
- Department of Pathology, Bacteriology and Poultry Diseases; Ghent University; Merelbeke Belgium
| | - M. Praet
- Department of Pathology; Ghent University; Ghent Belgium
| | - J. Saunders
- Department of Medical Imaging and Small Animal Orthopaedics; Faculty of Veterinary Medicine; Ghent University; Merelbeke Belgium
| | - S. Schauvliege
- Department of Surgery and Anaesthesiology of Large Animals; Ghent University; Merelbeke Belgium
| | - L. Vlaminck
- Department of Surgery and Anaesthesiology of Large Animals; Ghent University; Merelbeke Belgium
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Padalko E, Van Renterghem L, Bamelis M, De Mey A, Sturtewagen Y, Vastenavond H, Weyers S, Praet M. Prospective evaluation of E6/E7 mRNA detection by the NucliSENS Easy Q HPV assay in a stepwise protocol. J Med Virol 2013; 85:1242-9. [PMID: 23918543 DOI: 10.1002/jmv.23591] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/18/2013] [Indexed: 11/05/2022]
Abstract
The objective of the study was to evaluate prospectively the added value of E6/E7 mRNA detection in a stepwise protocol. A total of 1,422 samples were collected over a period of 17 months. The samples were referred for human papillomavirus (HPV) genotyping if they showed cytological evidence of atypical squamous cells of undetermined significance, low- or high-grade squamous intraepithelial lesion. If one or more of HPV types 16, 18, 31, 33, or 45 were present, mRNA was analyzed by the NucliSENS EasyQ HPV assay. The genotypical distribution of high-risk HPV was very heterogeneous; HPV 16, 18, 31, 33, and 45 represented 20.2%, 3.4%, 10.8%, 3.4%, and 3.8% of HPV-positive samples, respectively. Follow-up data were available for 35 patients. Although over the half (51.4%) of follow-up samples showing HPV DNA/mRNA consensus evolved to cervical intraepithelial neoplastic lesions, 25.7% showed no progression to neoplasia despite mRNA positivity. However, the major concern was the group (14.3%) that showed progression to cervical intraepithelial neoplasia despite mRNA negativity: all but one of these cases had a high-risk HPV genotype other than the five included in the NucliSENS EasyQ HPV assay. Markedly, 66.7% of the discordant samples between colposcopy and histology that underestimated the degree of cervical dysplasia were found in this group. Close monitoring of high-risk HPV DNA-positive/mRNA-negative cases remains necessary, which leads to questions about the added value of the evaluated protocol.
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Affiliation(s)
- Elizaveta Padalko
- Laboratory of Clinical Biology, Ghent University Hospital, Ghent, Belgium.
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Van Bockstal M, Lambein K, Gevaert O, De Wever O, Praet M, Cocquyt V, Van den Broecke R, Braems G, Denys H, Libbrecht L. Stromal architecture and periductal decorin are potential prognostic markers for ipsilateral locoregional recurrence in ductal carcinoma in situ of the breast. Histopathology 2013; 63:520-33. [PMID: 23889174 DOI: 10.1111/his.12188] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2013] [Accepted: 05/11/2013] [Indexed: 12/14/2022]
Abstract
AIMS The incidence of ductal carcinoma in situ (DCIS) has increased since the introduction of screening mammography. Recurrence prediction is still not accurate, and could be improved by identifying additional prognostic markers. Periductal stroma actively participates in early breast cancer progression. Therefore, the aim of this study was to explore the prognostic potential of stromal characteristics in DCIS. METHODS AND RESULTS Histopathological features and hormone receptor/HER2 status were analysed in a first cohort of 65 cases of DCIS with a median follow-up of 112 months. Cox regression analysis revealed that myxoid stromal architecture was significantly associated with increased ipsilateral locoregional recurrence (P = 0.015). Next, we performed immunohistochemical screening of nine stromal proteins in a second cohort of 82 DCIS cases, and correlated their expression with stromal architecture. Because reduced stromal decorin expression correlated most strongly with myxoid stroma (P < 0.001), it was selected for further analysis in the first cohort. Patients with reduced periductal decorin expression had a higher risk of recurrence (P = 0.008). Furthermore, HER2 overexpression was significantly associated with invasive but not with in situ recurrence (P = 0.007). CONCLUSIONS Periductal myxoid stroma and reduced periductal decorin expression seem to be prognostic for overall ipsilateral locoregional recurrence in DCIS, whereas HER2 expression might be a more specific biomarker for invasive recurrence.
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Affiliation(s)
- Mieke Van Bockstal
- Department of Pathology, Ghent University and Ghent University Hospital, Ghent, Belgium
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Taieb J, Tabernero J, Mini E, Subtil F, Folprecht G, Van Laethem J, Thaler J, Bridgewater J, Van Cutsem E, Rougier P, Collette L, Praet M, Schneider M, Bouché O, Lepage C, Girault C, Emile J, Laurent-Puig P, Bedenne L. Adjuvant Folfox4 with or without Cetuximab (CTX) in Patients (PTS) with Resected Stage III Colon Cancer (CC): Dfs and OS Results and Subgroup Analyses of the PETACC8 Intergroup Phase III Trial. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)34317-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Terryn W, Vanholder R, Hemelsoet D, Leroy BP, Van Biesen W, De Schoenmakere G, Wuyts B, Claes K, De Backer J, De Paepe G, Fogo A, Praet M, Poppe B. Questioning the Pathogenic Role of the GLA p.Ala143Thr "Mutation" in Fabry Disease: Implications for Screening Studies and ERT. JIMD Rep 2012; 8:101-8. [PMID: 23430526 PMCID: PMC3565658 DOI: 10.1007/8904_2012_167] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2012] [Revised: 06/30/2012] [Accepted: 07/04/2012] [Indexed: 01/22/2023] Open
Abstract
Fabry disease is an X-linked inborn error of glycosphingolipid metabolism caused by quantitative or qualitative defects in the lysosomal enzyme alfa-Galactosidase A (aGAL A), ultimately resulting in vital organ dysfunction. Mainly the kidneys, the heart, and the central nervous system are involved. While the classical phenotype of Fabry disease is readily recognizable, screening studies have identified clinical variants. Here, we report the phenotype associated with the GLA p.Ala143Thr (c.427G>A) mutation in 12 patients aged 42-83 years. None of the patients had classical Fabry signs or symptoms as angiokeratoma, hypohidrosis, acroparesthesia, or cornea verticillata. Possible Fabry manifestations were renal failure (5/12), stroke (7/12), and left ventricular hypertrophy (5/12), but these were not necessarily attributable to the p.Ala143Thr mutation, as a cardiac biopsy in one female and left ventricular hypertrophy and kidney biopsies in two males with renal failure and microalbuminuria lacked Gb-3 deposits. The literature data on this mutation as well as data collected in the Fabry Outcome Survey (FOS) database confirm these findings. The association of renal failure, stroke, and left ventricular hypertrophy with this mutation could be the result of selection bias, as most patients were detected in screening studies.We conclude that care should be taken with attribution of vital organ dysfunction to GLA sequence alterations. In case of the p.Ala143Thr mutation, and possibly also other mutations associated with an attenuated phenotype, diagnostic tools such as biopsy and imaging should critically evaluate the relation of end-organ failure with Fabry disease, as this has important consequences for enzyme replacement therapy.
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Affiliation(s)
- W. Terryn
- Department of Internal Medicine, Division of Nephrology, Regional Hospital Jan Yperman, Ypres, Briekestraat 12, Ieper, 8900 Belgium ,Department of Internal Medicine, Division of Nephrology, Ghent University Hospital, Ghent, Belgium
| | - R. Vanholder
- Department of Internal Medicine, Division of Nephrology, Ghent University Hospital, Ghent, Belgium
| | - D. Hemelsoet
- Department of Neurology, Ghent University Hospital, Ghent, Belgium
| | - B. P. Leroy
- Department of Ophthalmology, Ghent University Hospital & Ghent University, Ghent, Belgium ,Center for Medical Genetics, Ghent University Hospital, Ghent, Belgium
| | - W. Van Biesen
- Department of Internal Medicine, Division of Nephrology, Ghent University Hospital, Ghent, Belgium
| | - G. De Schoenmakere
- Department of Internal Medicine, Division of Nephrology, Heilig Hart Ziekenhuis, Roeselare, Belgium
| | - B. Wuyts
- Department of Clinical Biology, Laboratory for Metabolic Diseases, Ghent University Hospital, Ghent, Belgium
| | - K. Claes
- Center for Medical Genetics, Ghent University Hospital, Ghent, Belgium
| | - J. De Backer
- Department of Cardiology, Ghent University Hospital, Ghent, Belgium
| | - G. De Paepe
- Center for Medical Genetics, Ghent University Hospital, Ghent, Belgium
| | - A. Fogo
- Department of Pathology, Vanderbilt University Medical Center, Nashville, TN USA
| | - M. Praet
- Department of Pathology, Ghent University Hospital, Ghent, Belgium
| | - B. Poppe
- Center for Medical Genetics, Ghent University Hospital, Ghent, Belgium
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Abstract
OBJECTIVE To report a case of fatal alveolar hemorrhage associated with the use of everolimus in a patient who underwent a solid organ transplant. CASE SUMMARY In a 71-year-old cardiac transplant patient, cyclosporine was replaced with everolimus because of worsening renal function. Over the following weeks, the patient developed nonproductive cough and increasing dyspnea. His condition deteriorated to acute respiratory failure with hemoptysis, requiring hospital admission. Bilateral patchy alveolar infiltrates were apparent on chest X-ray and computed tomography. Cardiac failure was ruled out and empiric antimicrobial therapy was initiated. Additional extensive workup could not document opportunistic infection. Everolimus was discontinued and high-dose corticosteroid therapy was initiated. Despite this, the patient required invasive mechanical ventilation and died because of refractory massive hemoptysis. Autopsy revealed diffuse alveolar hemorrhage. DISCUSSION Everolimus is a mammalian target of rapamycin inhibitor approved for use as an immunosuppressant and antineoplastic agent. Its main advantage over calcineurin inhibitors (tacrolimus and cyclosporine) is a distinct safety profile. Although it has become clear that everolimus induces pulmonary toxicity more frequently than initially thought, most published cases thus far represented mild and reversible disease, and none was fatal. Here, we report a case of pulmonary toxicity developing over weeks following the introduction of everolimus, in which a fatal outcome could not be prevented by drug withdrawal and corticosteroid treatment. The association of everolimus and this syndrome was probable according to the Naranjo probability scale. CONCLUSIONS This case indicates that with the increasing use of everolimus, clinicians should be aware of the rare, but life-threatening manifestation of pulmonary toxicity.
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Affiliation(s)
- Pieter Depuydt
- Intensive Care Department, Medical Unit, University Hospital Ghent, Ghent, Belgium.
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Praet M, Quatacker J. An ultrastructural approach to cholestatic liver cell injury. Biol Cell 2012. [DOI: 10.1016/0248-4900(88)90144-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Lambein K, Van BM, Praet M, Denys H, Braems G, Nuyts A, Cocquyt V, Pauwels P, Van DBR, Libbrecht L. P4-18-06: Relationship between Pathological Features, Her2 Protein Expression, and HER2 and CEP17 Copy Numbers in DCIS. Cancer Res 2011. [DOI: 10.1158/0008-5472.sabcs11-p4-18-06] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background Previous studies in which HER2 status in ductal carcinoma in situ (DCIS) was evaluated yielded conflicting results. The reported prevalences of HER2 overexpression and amplification vary remarkably. These discrepancies might partly be due to differences in assessment methods, i.e. FISH or immunohistochemistry (IHC) and usage of tissue microarray or whole mount slides. To further investigate this issue, we performed both FISH and IHC for HER2, evaluated HER2 and CEP17 copy numbers and correlated these data with histopathological findings.
Methods 61 DCIS cases were studied, of which 55 pure DCIS and 6 DCIS with micro-invasion. Pathological features were evaluated and included: architecture, nuclear atypia, necrosis, calcifications, stromal inflammation, stromal morphology, extent of lesion, margin width, Van Nuys Prognostic Index and Pinder classification. Her2 IHC and HER2 dual probe FISH analysis were performed and scored according to ASCO/CAP guidelines. HER2/CEP17 ratio and HER2 and CEP17 copy numbers were separately analysed. IHC for estrogen and progesterone receptor (ER and PR) was also performed. Whole mount slides were used for all analyses.
Results 15 cases (25%) were scored negative (1+), 10 cases (16%) equivocal (2+) and 36 cases (59%) positive (3+) using Her2 IHC. According to FISH analysis, 34 of 60 cases (57%) showed HER2 amplification; there was insufficient tissue for FISH analysis in one case.
The amplification status of the DCIS lesions correlated with the IHC score (p<0,001). 30 of all 34 amplified cases were assigned a 3+ IHC score, and remarkably, all these cases showed HER2 clusters on FISH analysis (88%).
Amplified lesions showed more frequently nuclear atypia grade 3 (p=0.0335), extensive comedonecrosis (p=0.002) and stromal inflammation (p=0.003). HER2 amplification correlated with the presence of micro-invasion (p=0.0218)%. There was no correlation with hormone receptor status or other pathological variables.
In the amplified group, high-grade nuclear atypia was associated with a higher mean HER2 copy number (p=0.0026) and HER2/CEP17 ratio (p=0.0356), while this was not the case in the non-amplified group. CEP17 copy numbers did not correlate with nuclear atypia. Conclusions
The correlation between HER2 amplification and adverse pathological features, including micro-invasion and the association in amplified DCIS between HER2 copy number and high-grade nuclear atypia, underscore that HER2 is a driver of DCIS aggressiveness and possibly of recurrence in the form of non-invasive cancer. However, the prevalence of HER2 overexpression, amplification and cluster formation was much higher than in invasive carcinoma, suggesting that HER2 might play a less important role in transition from DCIS to frankly invasive cancer. Further studies should evaluate non-invasive and invasive recurrence of resected DCIS separately.
Citation Information: Cancer Res 2011;71(24 Suppl):Abstract nr P4-18-06.
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Affiliation(s)
- K Lambein
- 1Ghent University Hospital, Ghent, Belgium; Ghent University, Ghent, Belgium
| | - Bockstal M Van
- 1Ghent University Hospital, Ghent, Belgium; Ghent University, Ghent, Belgium
| | - M Praet
- 1Ghent University Hospital, Ghent, Belgium; Ghent University, Ghent, Belgium
| | - H Denys
- 1Ghent University Hospital, Ghent, Belgium; Ghent University, Ghent, Belgium
| | - G Braems
- 1Ghent University Hospital, Ghent, Belgium; Ghent University, Ghent, Belgium
| | - A Nuyts
- 1Ghent University Hospital, Ghent, Belgium; Ghent University, Ghent, Belgium
| | - V Cocquyt
- 1Ghent University Hospital, Ghent, Belgium; Ghent University, Ghent, Belgium
| | - P Pauwels
- 1Ghent University Hospital, Ghent, Belgium; Ghent University, Ghent, Belgium
| | - Den Broecke R Van
- 1Ghent University Hospital, Ghent, Belgium; Ghent University, Ghent, Belgium
| | - L Libbrecht
- 1Ghent University Hospital, Ghent, Belgium; Ghent University, Ghent, Belgium
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Hav M, De Potter A, Ferdinande L, Van Bockstal M, Lem D, Eav S, Pattyn P, Praet M, Cuvelier C, Libbrecht L. Glypican-3 is a marker for solid pseudopapillary neoplasm of the pancreas. Histopathology 2011; 59:1278-9. [DOI: 10.1111/j.1365-2559.2011.03998.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Tournoy KG, Carprieaux M, Deschepper E, van Meerbeeck JP, Praet M. Are EUS-FNA and EBUS-TBNA specimens reliable for subtyping non-small cell lung cancer? Lung Cancer 2011; 76:46-50. [PMID: 21945658 DOI: 10.1016/j.lungcan.2011.09.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2011] [Revised: 09/01/2011] [Accepted: 09/03/2011] [Indexed: 11/28/2022]
Abstract
With endosonography, the diagnosis and staging of non-small cell lung cancer (NSCLC) increasingly relies on small samples. The discrimination between squamous and non-squamous subtypes is now important for therapy tailoring. We analyzed the agreement between fine needle aspirates obtained by endosonography and matched biopsy samples for subtyping NSCLC. Patients with a positive endoscopic fine needle aspirate and a matched biopsy were identified. The level of diagnostic agreement was estimated with biopsy samples as golden standard. In 951 patients investigated with endosonography, we identified 92 with NSCLC on the positive fine needle aspirate and on the matched biopsy. Squamous cell carcinoma was diagnosed in 34 (37%) and 44 (48%) of fine needle aspirate and biopsy samples; while non-squamous carcinoma was diagnosed in 58 (63%) and 48 (52%) respectively. The agreement between needle aspirate and biopsy for the subtyping of NSCLC was 76% (kappa=0.52). In cases with cell block preparation, the agreement for subtyping was 96% (kappa=0.91) vs 69% (kappa=0.39) in cases without cell blocks. Therefore, the diagnostic agreement between endosonographic fine needle aspirates and biopsy specimens for subtyping NSCLC is moderate with a disagreement in 1 out of 4 patients. However, cell block preparation increased the agreement and thus the reliability of the fine needle specimens obtained during endosonography, for subtyping NSCLC considerably. In conclusion, for patients with NSCLC in whom subtyping is relevant, a diagnostic technique yielding larger samples (FNA with cell block preparation or biopsies) should be preferred.
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Affiliation(s)
- K G Tournoy
- Department of Respiratory Medicine and Thoracic Oncology, Ghent University Hospital, Belgium.
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Abstract
We report a case of a 76-year-old woman, presenting with a persistent dry cough, subfebrility, arthralgia and myalgia, weight loss and a breast lesion. She has elevated inflammatory parameters, impaired renal function with proteinuria, bilateral lung nodules on computed tomography scan (CT scan) and a suspect lesion on mammography. A diagnosis of microscopic polyangiitis with involvement of the breast is made based on clinical and radiographic findings, with positive auto-immune serology and histological confirmation. Although vasculitis of the breast is uncommon, this case illustrates that when a breast lesion is found, in combination with constitutional symptoms, we should think about the possibility of an anti-Neutrophil cytoplasmic antibodies (ANCA)-associated vasculitis. Therefore it may be important to perform auto-immune serology in these cases before proceeding to major surgery.
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Affiliation(s)
- M Devinck
- Department of Rheumatology, University Hospital Gent, Belgium.
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Verguts J, Coosemans A, Corona R, Praet M, Mailova K, Koninckx P. Intraperitoneal injection of cultured mesothelial cells decrease CO2 pneumoperitoneum-enhanced adhesions in a laparoscopic mouse model. ACTA ACUST UNITED AC 2011. [DOI: 10.1007/s10397-011-0658-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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