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排序方式: 共有207条查询结果,搜索用时 15 毫秒
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Brink AA Wiegant JC Szuhai K Tanke HJ Kenter GG Fleuren GJ Schuuring E Raap AK 《Cancer Genetics and Cytogenetics》2002,134(2):145-150
Infection with high-risk type human papillomavirus (HPV) is a necessary causal factor in the pathogenesis of cervical carcinoma. In most invasive cervical cancers, HPV is integrated in the host cell genome, and additional genetic aberrations are observed among which are chromosomal aberrations. To analyze in detail such often complex chromosomal changes and simultaneously map HPV integration sites, we extended the multiplicity of the combined binary ratio labeling fluorescence in situ hybridization (COBRA-FISH) technique to 49 by inclusion of a large Stokes' shift fluorochrome as the third binary label. The technique allows mapping of the integrated HPV genome in the context of p- and q-arm COBRA-FISH, with a sensitivity of one copy of the HPV genome as tested for HPV 16 in SiHa cells. We investigated the molecular karyotypes and integration patterns of HPV types 16 and 18 in metaphase spreads from short-term cultures of primary cervical carcinomas (n=5). Of the tested cervical carcinomas, two contained integrated HPV at 8q24, one of which in addition harbored the integrated virus near a translocation breakpoint. Two carcinomas had integrated HPV at 17q21 through 23 in a morphologically normal chromosome 17. One carcinoma contained HPV at 1q42 in a morphologically normal chromosome 1. Our data illustrate the efficacy of 49-color COBRA-FISH to resolve complex karyotypes and simultaneously map specific sequences in metaphases obtained from short-term solid tumor cultures. 相似文献
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Ian J Majewski Lorenza Mittempergher Nadia M Davidson Astrid Bosma Stefan M Willems Hugo M Horlings Iris de Rink Liliana Greger Gerrit KJ Hooijer Dennis Peters Petra M Nederlof Ingrid Hofland Jeroen de Jong Jelle Wesseling Roelof JC Kluin Wim Brugman Ron Kerkhoven Frank Nieboer Paul Roepman Annegien Broeks Thomas R Muley Jacek Jassem Jacek Niklinski Nico van Zandwijk Alvis Brazma Alicia Oshlack Michel van den Heuvel René Bernards 《The Journal of pathology》2013,230(3):270-276
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Gemma G Kenter Marij J P Welters A Rob P M Valentijn Margriet J G Lowik Dorien M A Berends-van der Meer Annelies P G Vloon Jan W Drijfhout Amon R Wafelman Jaap Oostendorp Gert Jan Fleuren Rienk Offringa Sjoerd H van der Burg Cornelis J M Melief 《Clinical cancer research》2008,14(1):169-177
PURPOSE: To determine the toxicity, safety, and immunogenicity of a human papillomavirus 16 (HPV16) E6 and E7 long peptide vaccine administered to end-stage cervical cancer patients. EXPERIMENTAL DESIGN: Three groups of end-stage cervical cancer patients (in total n = 35) were s.c. vaccinated with HPV16 E6 combined with or separated from HPV16 E7 overlapping long peptides in Montanide ISA-51 adjuvant, four times at 3-week intervals. Group 1 received 300 microg/peptide at a single site and group 2 received 100 microg/peptide of the E6 peptides in one limb and 300 microg/peptide of the E7 peptides in a second limb. Group 3 received separate injections of E6 and E7 peptides, each at a dose of 50 microg/peptide. The primary end point was to determine safety and toxicity of the HPV16 long peptides vaccine. In addition, the vaccine-induced T-cell response was assessed by IFN gamma enzyme-linked immunospot. RESULTS: No toxicity beyond grade 2 was observed during and after four vaccinations. In a few patients, transient flu-like symptoms were observed. Enzyme-linked immunospot analysis of the vaccine-induced immune response revealed that coinjection of the E6 and E7 peptides resulted in a strong and broad T-cell response dominated by immunity against E6. Injection of the E6 and E7 peptides at two different sites increased the E7 response but did not affect the magnitude of the E6-induced immune response. CONCLUSIONS: The HPV16 E6 and E7 long peptide-based vaccine is well tolerated and capable of inducing a broad IFN gamma-associated T-cell response even in end-stage cervical cancer patients. 相似文献
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Survival analysis of endometrial carcinoma associated with hereditary nonpolyposis colorectal cancer 总被引:4,自引:0,他引:4
Boks DE Trujillo AP Voogd AC Morreau H Kenter GG Vasen HF 《International journal of cancer. Journal international du cancer》2002,102(2):198-200
Endometrial carcinoma (EC) is the most common extracolonic tumor associated with hereditary nonpolyposis colorectal cancer (HNPCC). HNPCC increases the risk of EC compared to the general population. Patients with HNPCC have a better prognosis than patients with common sporadic colorectal cancer. It is unknown, however, whether the survival rate of HNPCC-associated EC is higher than that of sporadic EC. The aim of our study was to compare the survival rates of HNPCC-associated EC with sporadic EC. From the registry of the Netherlands Foundation for Hereditary Tumors, 50 patients with HNPCC-associated EC from 46 families harboring a germline mutation or fulfilling the Amsterdam Criteria II were age- and stage-matched with 100 patients with sporadic EC registered in the Eindhoven Cancer Registry in the Netherlands. Survival rates were analyzed. The overall 5-year cumulative survival rates for patients with HNPCC-associated EC was 88% and 82% for patients with sporadic EC (p = 0.59). In Stages IA, IB and IC, the survival rates of patients with HNPCC-associated EC and sporadic EC were 92% and 91%, respectively (p = 0.90). In Stages IIIA and IIIC, the survival rates for HNPCC-associated EC and sporadic EC were 72% and 50%, respectively (p = 0.38). Furthermore, there was no significant difference in the distribution of tumor histologic subtypes in the study and control groups (p = 0.55). The outcomes in survival in EC in the general population and in women from families with HNPCC do not differ significantly. These results may have important implications in our understanding of EC and the role of early screening. 相似文献
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Frequent detection of human papillomavirus 16 E2-specific T-helper immunity in healthy subjects. 总被引:5,自引:0,他引:5
Annemieke de Jong Sjoerd H van der Burg Kitty M C Kwappenberg Jeanette M van der Hulst Kees L M C Franken Annemieke Geluk Krista E van Meijgaarden Jan Wouter Drijfhout Gemma Kenter Pieter Vermeij Cornelis J M Melief Rienk Offringa 《Cancer research》2002,62(2):472-479
The incidence of genital human papillomavirus (HPV) infections is high in young, sexually active individuals. Most infections are cleared within 1 year after infection. The targets for the cellular immune response in this process of viral clearance remain to be identified, but the expression pattern of the E2 protein in early infection and low-grade cervical intraepithelial neoplasia renders this early protein a candidate antigen. Therefore, we studied the HPV16 E2-specific T-cell responses in more detail. Very strong proliferative responses against one or more peptide-epitopes derived from this antigen can be found in peripheral blood mononuclear cell cultures of approximately half of the healthy donors. Additional analysis revealed that at least a majority of these responses represent reactivity by memory CD4(+) T-helper (Th) 1-type cells capable of secreting IFN-gamma on antigenic stimulation. Interestingly, all of the E2 peptides against which strong responses were detected are clustered in the key functional domains of the E2 protein, which are conserved to considerable extent between HPV types. This suggests that HPV16 E2-specific Th memory may be installed through encounter with HPV types other than HPV16. Indeed, one HPV16 E2-specific Th clone was found to cross-react against homologuous peptides from other HPV types, but three other Th clones failed to show similar cross-reactivity. Therefore, part of the HPV16 E2-specific Th memory may relate to previous encounter of other HPV types, whereas the majority of the immune repertoire concerned is most likely established through infection with HPV16 itself. Our data are the first to reveal that the T-cell repertoire of healthy donors can contain particularly high frequencies of E2-specific memory Th cells and suggest that boosting of this immunity can be used for preventive and therapeutic vaccination against HPV-induced lesions. 相似文献
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J. B. Trimbos S. A. H. M. van den Tillaart C. P. Maas A. A. W. Peters K. N. Gaarenstroom M. C. DeRuiter G. G. Kenter 《Gynecological surgery》2008,5(3):193-198
In 2002, our group introduced an operation to avoid damage to the pelvic autonomous nerves during radical hysterectomy that
proved to be feasible, effective and safe. During the last five years, we have adapted our surgical technique to make this
procedure easier and safer in terms of radicality. We report on the changes in the surgical approach and the results in the
first 15 consecutive patients. The Swift operation is more radical in the area of the uterosacral ligaments than the original
operation, and it dissects the hypogastric nerve free under direct vision. In the area of the parametria, it is more radical
in the deep lateral part. The vascular parametrial tissue is dissected and separated ventrally from the ureters. From October
2006 to February 2007, 15 consecutive patients with cervical cancer stage IA2 to IB2 underwent the Swift operation. The extra
operating time amounted to 20 min, which was similar to the original operation, and with no extra blood loss. The suprapubic
catheter was removed after a median of five days. Up until now (February 2008), no recurrences have been seen in these patients.
It was concluded that the Swift procedure is easy to perform and that it offers advantages over the original operation in
terms of safety and radicality. 相似文献