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Hottat NA, Van Pachterbeke C, Vanden Houte K, Denolin V, Jani JC, Cannie MM. Magnetic resonance scoring system for assessment of adnexal masses: added value of diffusion-weighted imaging including apparent diffusion coefficient map. Ultrasound Obstet Gynecol 2021; 57:478-487. [PMID: 32438461 DOI: 10.1002/uog.22090] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 05/01/2020] [Accepted: 05/07/2020] [Indexed: 06/11/2023]
Abstract
OBJECTIVES To validate prospectively the ADNEX magnetic resonance (MR) scoring system to assess adnexal masses and to evaluate a new, modified ADNEX MR scoring system that incorporates diffusion-weighted imaging (DWI) with apparent diffusion coefficient (ADC) mapping. METHODS Between January 2015 and September 2018, 323 consecutive women with adnexal masses diagnosed on transvaginal ultrasound (TVS) underwent standardized MR imaging (MRI) including diffusion and dynamic contrast-enhanced sequences. Of these, 131 underwent subsequent surgery. For interpretation of the MRI examinations, we applied the five-category ADNEX MR scoring system, along with a modified scoring system including DWI with ADC mapping. For both scoring systems, a score was given for all adnexal masses. Histological diagnosis was considered as the gold standard and lesions were classified as benign or malignant. The difference between the predictive values for diagnosing malignancy of the classical and modified scoring systems was assessed on the basis of the areas under the receiver-operating-characteristics (AUC) curves. The sensitivity and specificity for diagnosing malignancy of each score were also calculated. RESULTS Among the 131 women with adnexal mass(es) diagnosed on TVS who underwent MRI and subsequent surgery, the surgery revealed 161 adnexal masses in 126 women; five women had no mass. Histological examination confirmed 161 adnexal masses, of which all had been detected on MRI: 32 malignant tumors, 15 borderline tumors, which were classified as part of the malignant group (n = 47), and 114 benign lesions. The AUC for prediction of a malignant lesion was 0.938 (95% CI, 0.902-0.975) using the classical ADNEX MR scoring system and 0.974 (95% CI, 0.953-0.996) using the modified scoring system. Pairwise comparison of these AUCs revealed a significant difference (P = 0.0032). The sensitivity and specificity for diagnosing malignancy with an ADNEX MR score of 4 or more were 95.5% and 86.6%, respectively, using the classic scoring system, and 95.7% and 93.3%, respectively, using the modified scoring system. CONCLUSION DWI with ADC mapping could be integrated into the ADNEX MR scoring system to improve specificity, thereby potentially optimizing clinical management by avoiding unnecessary surgery. © 2020 International Society of Ultrasound in Obstetrics and Gynecology.
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Affiliation(s)
- N A Hottat
- Department of Radiology, University Hospital Brugmann, Université Libre de Bruxelles, Brussels, Belgium
- Department of Radiology, UZ Brussel, Vrije Universiteit Brussel, Brussels, Belgium
| | - C Van Pachterbeke
- Department of Obstetrics and Gynecology, University Hospital Brugmann, Université Libre de Bruxelles, Brussels, Belgium
| | - K Vanden Houte
- Department of Pathology, University Hospital Brugmann, Université Libre de Bruxelles, Brussels, Belgium
| | - V Denolin
- Siemens Healthineers, Beersel, Belgium
| | - J C Jani
- Department of Obstetrics and Gynecology, University Hospital Brugmann, Université Libre de Bruxelles, Brussels, Belgium
| | - M M Cannie
- Department of Radiology, University Hospital Brugmann, Université Libre de Bruxelles, Brussels, Belgium
- Department of Radiology, UZ Brussel, Vrije Universiteit Brussel, Brussels, Belgium
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Van Den Bosch T, Verbakel JY, Valentin L, Wynants L, De Cock B, Pascual MA, Leone FPG, Sladkevicius P, Alcazar JL, Votino A, Fruscio R, Lanzani C, Van Holsbeke C, Rossi A, Jokubkiene L, Kudla M, Jakab A, Domali E, Epstein E, Van Pachterbeke C, Bourne T, Van Calster B, Timmerman D. Typical ultrasound features of various endometrial pathologies described using International Endometrial Tumor Analysis (IETA) terminology in women with abnormal uterine bleeding. Ultrasound Obstet Gynecol 2021; 57:164-172. [PMID: 32484286 DOI: 10.1002/uog.22109] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 05/10/2020] [Accepted: 05/22/2020] [Indexed: 06/11/2023]
Abstract
OBJECTIVE To describe the ultrasound features of different endometrial and other intracavitary pathologies inpre- and postmenopausal women presenting with abnormal uterine bleeding, using the International Endometrial Tumor Analysis (IETA) terminology. METHODS This was a prospective observational multicenter study of consecutive women presenting with abnormal uterine bleeding. Unenhanced sonography with color Doppler and fluid-instillation sonography were performed. Endometrial sampling was performed according to each center's local protocol. The histological endpoints were cancer, atypical endometrial hyperplasia/endometrioid intraepithelial neoplasia (EIN), endometrial atrophy, proliferative or secretory endometrium, endometrial hyperplasia without atypia, endometrial polyp, intracavitary leiomyoma and other. For fluid-instillation sonography, the histological endpoints were endometrial polyp, intracavitary leiomyoma and cancer. For each histological endpoint, we report typical ultrasound features using the IETA terminology. RESULTS The database consisted of 2856 consecutive women presenting with abnormal uterine bleeding. Unenhanced sonography with color Doppler was performed in all cases and fluid-instillation sonography in 1857. In 2216 women, endometrial histology was available, and these comprised the study population. Median age was 49 years (range, 19-92 years), median parity was 2 (range, 0-10) and median body mass index was 24.9 kg/m2 (range, 16.0-72.1 kg/m2 ). Of the study population, 843 (38.0%) women were postmenopausal. Endometrial polyps were diagnosed in 751 (33.9%) women, intracavitary leiomyomas in 223 (10.1%) and endometrial cancer in 137 (6.2%). None (0% (95% CI, 0.0-5.5%)) of the 66 women with endometrial thickness < 3 mm had endometrial cancer or atypical hyperplasia/EIN. Endometrial cancer or atypical hyperplasia/EIN was found in three of 283 (1.1% (95% CI, 0.4-3.1%)) endometria with a three-layer pattern, in three of 459 (0.7% (95% CI, 0.2-1.9%)) endometria with a linear endometrial midline and in five of 337 (1.5% (95% CI, 0.6-3.4%)) cases with a single vessel without branching on unenhanced ultrasound. CONCLUSIONS The typical ultrasound features of endometrial cancer, polyps, hyperplasia and atrophy and intracavitary leiomyomas, are described using the IETA terminology. The detection of some easy-to-assess IETA features (i.e. endometrial thickness < 3 mm, three-layer pattern, linear midline and single vessel without branching) makes endometrial cancer unlikely. Copyright © 2020 ISUOG. Published by John Wiley & Sons Ltd.
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Affiliation(s)
- T Van Den Bosch
- Department of Obstetrics and Gynecology, University Hospitals Leuven, Leuven, Belgium
- Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | - J Y Verbakel
- Department of Public Health and Primary Care, KU Leuven, Leuven, Belgium
| | - L Valentin
- Department of Obstetrics and Gynecology, Skåne University Hospital, Malmö, Sweden
- Department of Clinical Sciences, Lund University, Malmö, Sweden
| | - L Wynants
- Department of Development and Regeneration, KU Leuven, Leuven, Belgium
- Department of Epidemiology, CAPHRI Care and Public Health Research Institute, Maastricht University, Maastricht, The Netherlands
| | - B De Cock
- Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | - M A Pascual
- Department of Obstetrics, Gynecology and Reproduction, Hospital Universitario Dexeus, Barcelona, Spain
| | - F P G Leone
- Department of Obstetrics and Gynecology, Clinical Sciences Institute L. Sacco, University of Milan, Milan, Italy
| | - P Sladkevicius
- Department of Obstetrics and Gynecology, Skåne University Hospital, Malmö, Sweden
- Department of Clinical Sciences, Lund University, Malmö, Sweden
| | - J L Alcazar
- Department of Obstetrics and Gynecology, Clinica Universidad de Navarra, Pamplona, Spain
| | - A Votino
- Department of Obstetrics and Gynecology, University Hospital Brugmann, Brussels, Belgium
| | - R Fruscio
- Clinic of Obstetrics and Gynecology, University of Milan-Bicocca, San Gerardo Hospital, Monza, Italy
| | - C Lanzani
- Department of Obstetrics and Gynecology, Clinical Sciences Institute L. Sacco, University of Milan, Milan, Italy
| | - C Van Holsbeke
- Department of Obstetrics and Gynecology, Ziekenhuis Oost-Limburg, Genk, Belgium
| | - A Rossi
- Department of Obstetrics and Gynecology, University of Udine, Udine, Italy
| | - L Jokubkiene
- Department of Obstetrics and Gynecology, Skåne University Hospital, Malmö, Sweden
- Department of Clinical Sciences, Lund University, Malmö, Sweden
| | - M Kudla
- Department of Perinatology and Oncological Gynecology, Faculty of Medical Sciences, Medical University of Silesia, Katowice, Poland
| | - A Jakab
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - E Domali
- First Department of Obstetrics and Gynecology, University of Athens School of Medicine, Alexandra Hospital, Athens, Greece
| | - E Epstein
- Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
- Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
| | - C Van Pachterbeke
- Department of Obstetrics and Gynecology, University Hospital Brugmann, Brussels, Belgium
| | - T Bourne
- Department of Obstetrics and Gynecology, University Hospitals Leuven, Leuven, Belgium
- Department of Development and Regeneration, KU Leuven, Leuven, Belgium
- Queen Charlotte's and Chelsea Hospital, Imperial College, London, UK
| | - B Van Calster
- Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | - D Timmerman
- Department of Obstetrics and Gynecology, University Hospitals Leuven, Leuven, Belgium
- Department of Development and Regeneration, KU Leuven, Leuven, Belgium
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Votino A, Van den Bosch T, Installé A, Van Schoubroeck D, Kaijser J, Kacem Y, De Moor B, Van Pachterbeke C, Timmerman D. Optimizing the ultrasound visualization of the endometrial-myometrial junction (EMJ). Facts Views Vis Obgyn 2015; 7:60-3. [PMID: 25897372 PMCID: PMC4402444] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
OBJECTIVES The aim of this study was to find the best 3D reconstruction technique to visualize the endometrial-myometrial junction (EMJ). METHODS Retrospective observational study on 240 stored 3D volumes of 80 patients. The first author reconstructed the 2D midcoronal image without volume contrast imaging (VCI), with VCI set at 4 mm and with VCI set at 2 mm. Three images per patient (240 images) were saved and integrated in the web-based electronic data capture software Clinical Data Miner (CDM) (http://cdm.esat.kuleuven.be). Five experienced gynaecologists analysed the images shown in random order. They scored the image quality (good, moderate, poor, insufficient) and described the EMJ of these images using IETA terminology (regular, irregular, interrupted, not defined). One of the examiners (CVP) also re-evaluated the same set of images after 12 days to assess intra-observer variability. RESULTS The use of VCI significantly improved the recorded subjective image quality. The Fleiss' kappa coefficient for evaluating the inter-observer variability of the EMJ description using coronal view without VCI, with VCI at 4 mm and VCI at 2 mm were 0.36 ± 0.05, 0.34 ± 0.05 and 0.42 ± 0.05, respectively. The corresponding figures for the intra-observer variability were 0.58 ± 0.08, 0.36 ± 0.08 and 0.68 ± 0.07, respectively. DISCUSSION In this study on 3D reconstructed coronal images of the uterine cavity, the 2 mm VCI slices gave the best quality images of the EMJ.
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Affiliation(s)
- A. Votino
- Department of Obstetrics and Gynaecology, University Hospitals KULeuven, Leuven, Belgium.
,Brugmann Departments of Obstetrics and Gynaecology, University Hospital Brugmann, Brussels, Belgium.
| | - T. Van den Bosch
- Department of Obstetrics and Gynaecology, University Hospitals KULeuven, Leuven, Belgium.
| | - A.J.F. Installé
- KU Leuven, Department of Electrical Engineering ESAT, STADIUS Centre for Dynamical Systems, Signal Processing and Data Analytics, Leuven, Belgium.
,iMinds Medical IT, Leuven, Belgium.
| | - D. Van Schoubroeck
- Department of Obstetrics and Gynaecology, University Hospitals KULeuven, Leuven, Belgium.
| | - J. Kaijser
- Department of Obstetrics and Gynaecology, University Hospitals KULeuven, Leuven, Belgium.
| | - Y. Kacem
- Brugmann Departments of Obstetrics and Gynaecology, University Hospital Brugmann, Brussels, Belgium.
| | - B. De Moor
- KU Leuven, Department of Electrical Engineering ESAT, STADIUS Centre for Dynamical Systems, Signal Processing and Data Analytics, Leuven, Belgium.
,iMinds Medical IT, Leuven, Belgium.
| | - C. Van Pachterbeke
- Brugmann Departments of Obstetrics and Gynaecology, University Hospital Brugmann, Brussels, Belgium.
| | - D. Timmerman
- Department of Obstetrics and Gynaecology, University Hospitals KULeuven, Leuven, Belgium.
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Minsart AF, Ntoutoume Sima F, Vandenhoute K, Jani J, Van Pachterbeke C. Does three-dimensional power Doppler ultrasound predict histopathological findings of uterine fibroids? A preliminary study. Ultrasound Obstet Gynecol 2012; 40:714-720. [PMID: 22581621 DOI: 10.1002/uog.11155] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 03/07/2012] [Indexed: 05/31/2023]
Abstract
OBJECTIVES To compare three-dimensional (3D) power Doppler sonographic characteristics of fibroids with histopathological parameters. METHODS We evaluated sonographically 73 fibroids before myomectomy or hysterectomy. For each, the total fibroid volume, a shell of 3 mm and a 1-cm(3) spherical sample from the most vascularized area on subjective assessment were captured. 3D power Doppler vascularization index (VI), flow index (FI) and vascularization flow index (VFI) were generated in the acquired volumes. The degree of cellularity, ischemic necrosis and fibrosclerosis, as well as CD31 and Ki-67 staining for vascular density and proliferation index, respectively, were estimated using the surgical sample. Pathological data were considered as dependent variables and ultrasound data as independent variables in multivariable logistic regression models including patients' characteristics. RESULTS A high histological 'cellular activity score', combining hypercellularity, a fibrosclerosis rate < 25% and positive Ki-67 staining, was statistically related in multivariate analyses to high 3D power Doppler VI in spherical samples (odds ratio (OR), 1.1 (95% CI, 1.0-1.3), P < 0.05) and VFI (OR, 1.3 (95% CI, 1.0-1.8), P < 0.05). Positive CD31 staining was statistically related to high 3D power Doppler VI in spherical samples (OR, 1.1 (95% CI, 1.0-1.3), P < 0.05). In contrast, ischemic necrosis was statistically related to low 3D power Doppler VI in the total volume (OR, 0.6 (95% CI, 0.4-1.0), P < 0.05) and VFI (OR, 0.4 (95% CI, 0.1-1.1), P < 0.05). CONCLUSION Vascular density, ischemic necrosis and histological cellular activity score are statistically significantly associated with some 3D power Doppler indices.
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Affiliation(s)
- A-F Minsart
- Department of Obstetrics and Gynecology, University Hospital Brugmann, Brussels, Belgium.
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Van Pachterbeke C, Bucella D, Rozenberg S, Manigart Y, Gilles C, Larsimont D, Vanden Houte K, Reynders M, Snoeck R, Bossens M. Topical treatment of CIN 2+ by cidofovir: results of a phase II, double-blind, prospective, placebo-controlled study. Gynecol Oncol 2009; 115:69-74. [PMID: 19647859 DOI: 10.1016/j.ygyno.2009.06.042] [Citation(s) in RCA: 38] [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: 03/01/2009] [Revised: 06/19/2009] [Accepted: 06/27/2009] [Indexed: 12/22/2022]
Abstract
OBJECTIVE Randomized controlled trial evaluating a topical treatment for cervical intraepithelial neoplasia 2 and 3 (CIN 2+) using cidofovir. METHODS Fifty-three women with a biopsy-proven CIN 2+ were randomly assigned, 6 weeks before their planned conisation, either 3 applications of 3 ml 2% cidofovir in Intrasite gel in a cervical cap or a placebo (the same volume of Intrasite alone). A cervical sample for high-risk types of human papillomaviruses (HPV) (Hybrid Capture 2 or HC2) was taken before treatment and before conisation. The cone was submitted for pathological examination, and subsequently, along with the initial biopsy, to in situ hybridization (ISH) for high-risk HPV. RESULTS Forty-eight patients were treated and followed according to the protocol, (23 cidofovir, and 25 placebo). Fourteen of the 23 cones were free of any CIN (60.8%) in the cidofovir group. Only 5 of 25 cones were free of any CIN (20%) in the placebo group (p<0.01). The difference remained significant in the ITT group (p<0.05). In the per-protocol and ITT populations, we observed more frequent viral clearance in the cidofovir group, but the difference was significant only when evaluated by ISH and not by HC2. No systemic toxicity was observed. Cervico-vaginal side effects of cidofovir were limited, and not statistically different from placebo. CONCLUSION The medical topical treatment with cidofovir, at this point, cannot replace conisation, but it is a promising candidate for topical chemotherapy of CIN 2+ lesions; a larger prospective randomized study is needed to confirm our results.
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Affiliation(s)
- C Van Pachterbeke
- Department of Obstetrics and Gynecology, Universitary Hospital Brugmann, Brussels, Belgium.
| | - D Bucella
- Department of Obstetrics and Gynecology, IRIS-Sud Hospital, Brussels, Belgium
| | - S Rozenberg
- Department of Obstetrics and Gynecology, Universitary Hospital Saint Pierre, Brussels, Belgium
| | - Y Manigart
- Department of Obstetrics and Gynecology, Universitary Hospital Saint Pierre, Brussels, Belgium
| | - C Gilles
- Department of Obstetrics and Gynecology, Universitary Hospital Saint Pierre, Brussels, Belgium
| | - D Larsimont
- Department of Pathology, Universitary Hospital Saint Pierre, Brussels, Belgium
| | - K Vanden Houte
- Department of Pathology, Universitary Hospital Brugmann, Brussels, Belgium
| | - M Reynders
- Department of Virology, Universitary Hospital Saint Pierre, Brussels, Belgium
| | | | - M Bossens
- Department of Obstetrics and Gynecology, IRIS-Sud Hospital, Brussels, Belgium
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Nemec E, Van de Putte S, Van Pachterbeke C, Vokaer R, Budel V, Deprez C, Kiss R, Decaestecker C. Ploidy and chromatin pattern analysis as an aid for cervical smear diagnosis. Histol Histopathol 2002; 17:403-9. [PMID: 11962744 DOI: 10.14670/hh-17.403] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In the present study we used computer-assisted microscopy to analyze the morphology of Feulgen-stained cell nuclei in cell populations obtained at the same time as routinely performed cervical smears and in the same way. We investigated in a series of 110 cases whether the quantitative morphonuclear description of cytological cervical samples is able to aid pathologists to distinguish between benign and more suspect premalignant lesions. For this task nuclear DNA content, nuclear morphometry (size and anisonucleosis level) and chromatin pattern-related parameters were compiled for each specimen enrolled in the database. A set of 32 normal and 17 high-grade squamous intraepithelial lesion (HSIL) specimens (with diagnostic confirmations) were selected as references and used to establish a discriminant model on the basis of cytometry-generated variables. This model was then used to score the remaining 61 cases in our series (including cases exhibiting benign cellular changes, squamous cells of undetermined significance, low-grade SIL and cancers). The results show that a model discriminating efficiently between normal and HSIL groups can be obtained by combining 5 quantitative features (1 DNA ploidy-related, 2 morphometrical and 2 chromatin texture features). A 97% specificity and an 88% sensitivity characterized the boundary so established. When applied to new cases, the model was in fact able to correct diagnoses for cases which had been down- or up-graded on the basis of the Bethesda system, and provided scores in accordance with histological control.
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Affiliation(s)
- E Nemec
- Department of Pathology, Faculty of Medicine, Université Libre de Bruxelles, Brussels, Belgium
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Van Pachterbeke C, Tuynder M, Brandenburger A, Leclercq G, Borras M, Rommelaere J. Varying sensitivity of human mammary carcinoma cells to the toxic effect of parvovirus H-1. Eur J Cancer 1997; 33:1648-53. [PMID: 9389929 DOI: 10.1016/s0959-8049(97)00153-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
We have previously demonstrated lysis of non-established cultures of human mammary carcinoma cells by parvovirus H-1, which has little effect on the proliferation of corresponding normal cultures. In the present study, we examined this effect in a number of breast-tumour specimens and found them to differ as to the amplitude of their response to parvoviral attack. We first investigated whether the differences in cell sensitivity to parvovirus infection reflected the differentiation level of the initial tumour. Among the biochemical and anatomopathological indicators of original tumour differentiation, the presence of oestrogenic receptors (ER) was found to have a predictive value as to the sensitivity of derived cultures to the cytopathic effect of H-1 virus. The ER+ tumour-derived cultures showed an increased sensitivity to the lytic effect of H-1 virus compared with the ER-tumour-derived cultures, in spite of similar average proliferation rates for the two types of cultures. The proliferation rate was more heterogeneous among ER+ tumour-derived cultures and, in this group, the faster growing cultures were also the most sensitive. This observation was corroborated by the study of established cell lines retaining ER expression under in vitro culture conditions. Oestradiol was found to increase the sensitivity of these cells to the parvovirus in parallel with induction of proliferation. This effect appeared to be mediated by ER activation, since it was not observed in the ER-negative cell line MDA-MB-231. These data point to the importance of hormonal influences and cellular parameters, notably differentiation and proliferation, in determining the extent to which human cancer cells can be targets for the cytopathic effect of parvoviruses.
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Affiliation(s)
- C Van Pachterbeke
- Laboratory of Biophysics and Radiobiology, Université Libre de Bruxelles, Belgium
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Van Pachterbeke C, Tuynder M, Cosyn JP, Lespagnard L, Larsimont D, Rommelaere J. Parvovirus H-1 inhibits growth of short-term tumor-derived but not normal mammary tissue cultures. Int J Cancer 1993; 55:672-7. [PMID: 8406998 DOI: 10.1002/ijc.2910550427] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Infection with parvovirus H-1 strongly interfered with the proliferation of non-established tissue cultures derived from human breast tumors, but had little effect on the growth of corresponding normal human mammary cells. Even though tumor cells were always more sensitive to the virus than normal tissue from the same patient, appreciable quantitative differences were observed among tumor specimens. With time and sub-cultures, the killing effect of the virus on tumor cells became amplified. The impaired growth of infected tumor cells was due both to cytotoxic and to cytostatic action of H-1 virus and was associated with their greater capacity for virus-DNA amplification as compared with normal cells.
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Affiliation(s)
- C Van Pachterbeke
- Laboratory of Biophysics and Radiobiology, Université Libre de Bruxelles, Rhode-St-Genèse, Belgium
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Vandenvelde C, Scheen R, Van Pachterbeke C, Loriaux C, Decelle J, Hubert T, Delhaye C, Cattoor JP, Duys M, Van Beers D. Prevalence of high risk genital papillomaviruses in the Belgian female population determined by fast multiplex polymerase chain reaction. J Med Virol 1992; 36:279-82. [PMID: 1315840 DOI: 10.1002/jmv.1890360409] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Because in situ/filter hybridisation is not sensitive enough and because classical polymerase chain reaction (PCR) protocols are generally not sufficiently reproducible and specific, there is little accurate information on the prevalence of human papillomaviruses (HPV) 16, 18, and 33 infections in women without dyskaryotic changes of the cervix. In our hands, our Fast Multiplex PCR protocol has always been the most sensitive, specific, and reproducible DNA detection assay in all the microbiological and haematological applications we attempted (Vandenvelde C, Verstraete M, Van Beers D [1990]: Journal of Virological Methods 30:215-228; Vandenvelde C, Scheen R, Corazza F, Van Beers D [1991a]: Journal of Experimental and Clinical Hematology 33:293-297; Vandenvelde C, Scheen R, Van Beers D, Fondu P [1991b]: Journal of Experimental and Clinical Hematology 30:25-29). Using this new technique, cervical scrapes from 336 Belgian women attending the cervical cancer screening clinic were examined for the presence of these three high-risk genital papillomaviruses. Positive results were confirmed using another set of HPV-specific primers. Exactly one sixth of our population was found positive for one or more of these HPVs. Types 33 and 16 were significantly more prevalent than type 18. The nonparametric statistical analysis of the data suggests that some risk factors such as particular sexual habits, that are inversely related to age, must exist.
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Affiliation(s)
- C Vandenvelde
- Department of Virology, Brugmann University Hospital, Brussels, Belgium
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L'Hermite M, Van Pachterbeke C, Van Roosendaal E. From oral contraception to hormone replacement therapy: towards a continuum? Maturitas 1988; Suppl 1:155-65. [PMID: 3237108 DOI: 10.1016/0378-5122(88)90017-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- M L'Hermite
- Université Libre de Bruxelles, Hôpital Brugmann, Service de Gynécologie-Obstétrique, Belgium
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