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1.
Int J Cancer ; 155(1): 104-116, 2024 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-38447012

RESUMEN

High-grade serous ovarian carcinoma (HGSC) is the most common subtype of ovarian cancer and is among the most fatal gynecological malignancies worldwide, due to late diagnosis at advanced stages and frequent therapy resistance. In 47 HGSC patients, we assessed somatic and germline genetic variability of a custom panel of 144 known or suspected HGSC-related genes by high-coverage targeted DNA sequencing to identify the genetic determinants associated with resistance to platinum-based therapy. In the germline, the most mutated genes were DNAH14 (17%), RAD51B (17%), CFTR (13%), BRCA1 (11%), and RAD51 (11%). Somatically, the most mutated gene was TP53 (98%), followed by CSMD1/2/3 (19/19/36%), and CFTR (23%). Results were compared with those from whole exome sequencing of a similar set of 35 HGSC patients. Somatic variants in TP53 were also validated using GENIE data of 1287 HGSC samples. Our approach showed increased prevalence of high impact somatic and germline mutations, especially those affecting splice sites of TP53, compared to validation datasets. Furthermore, nonsense TP53 somatic mutations were negatively associated with patient survival. Elevated TP53 transcript levels were associated with platinum resistance and presence of TP53 missense mutations, while decreased TP53 levels were found in tumors carrying mutations with predicted high impact, which was confirmed in The Cancer Genome Atlas data (n = 260). Targeted DNA sequencing of TP53 combined with transcript quantification may contribute to the concept of precision oncology of HGSC. Future studies should explore targeting the p53 pathway based on specific mutation types and co-analyze the expression and mutational profiles of other key cancer genes.


Asunto(s)
Cistadenocarcinoma Seroso , Resistencia a Antineoplásicos , Neoplasias Ováricas , Proteína p53 Supresora de Tumor , Humanos , Femenino , Neoplasias Ováricas/genética , Neoplasias Ováricas/tratamiento farmacológico , Neoplasias Ováricas/patología , Proteína p53 Supresora de Tumor/genética , Resistencia a Antineoplásicos/genética , Cistadenocarcinoma Seroso/genética , Cistadenocarcinoma Seroso/tratamiento farmacológico , Cistadenocarcinoma Seroso/patología , Persona de Mediana Edad , Mutación , Anciano , Adulto , Mutación de Línea Germinal , Regulación Neoplásica de la Expresión Génica , Secuenciación del Exoma/métodos , Platino (Metal)/uso terapéutico , Platino (Metal)/farmacología
2.
Ceska Gynekol ; 89(4): 293-297, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39242204

RESUMEN

AIM: A retrospective audit from a urological center focused on urological fistulas that directly connect with the treatment of gynecological malignancy. Ureteroarterial fistulas, i.e., pathological communication between the ureter and the artery, are discussed in more detail. MATERIALS AND METHODS: Over a period of ten years, from 2011 to 2020, a group of 47 patients with a diagnosis of urinary fistula was retrospectively evaluated. These patients, with a history of treatment for gynecological malignancy, were sent to our clinic from local and non-regional departments in the Czech Republic. We found three cases of ureteroarterial fistula in the presented analysis that focused on urological toxicity of oncogynecological treatment. RESULTS: Within the mentioned period of ten years, we recorded 64 cases of urinary fistulas, and 47 patients (73.4%) were directly related to oncogynecological treatment. In the group with gynecological tumors, we found three patients (6.4%) with a diagnosis of ureteroarterial fistula, two of whom died directly related to this complication (exsanguination). These patients were treated for cervical cancer. All of them underwent radiotherapy during the treatment. CONCLUSION: Ureteroarterial fistulas are the most severe complications that can occur in medicine. This work confirms that we have encountered these cases even recently. Management is highly demanding for patients affected in this way and requires multidisciplinary cooperation. Endovascular intervention methods can control bleeding in emergency situations with non-surgical approaches. However, they are usually the first step towards a definitive surgical solution.


Asunto(s)
Fístula Urinaria , Fístula Vascular , Humanos , Femenino , Fístula Urinaria/etiología , Estudios Retrospectivos , Fístula Vascular/etiología , Enfermedades Ureterales/etiología , Persona de Mediana Edad , Anciano , Neoplasias de los Genitales Femeninos/radioterapia , Neoplasias del Cuello Uterino , Adulto
3.
Ceska Gynekol ; 89(4): 261-268, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39242200

RESUMEN

OBJECTIVE: To investigate DNA methylation of specific tumor suppressor genes in endometrial hyperplasia compared to normal endometrial tissue. File and methodology: To search for epigenetic events, methylation-specific multiplex ligation-dependent probe amplification was employed to compare the methylation status of 40 tissue samples with atypical endometrial hyperplasia, 40 tissue samples with endometrial hyperplasia without atypia, and 40 control tissue samples with a normal endometrium. RESULTS AND CONCLUSION: Differences in DNA methylation among the groups were found in TWIST1, GATA4, MUS81, and NTRK1 genes (TWIST1: atypical hyperplasia 67.5%, benign hyperplasia 2.5%, normal endometrium 22.5%; P < 0.00001; GATA4: atypical hyperplasia 95%, benign hyperplasia 65%, normal endometrium 22.5%; P < 0.00001; MUS81: atypical hyperplasia 57.5%, benign hyperplasia 22.5%, normal endometrium 5%; P < 0.00001; NTRK1: atypical hyperplasia 65%, benign hyperplasia 27.5%, normal endometrium 10%; P < 0.00001). Higher methylation rates were observed for the tumor suppressor genes of TWIST1, GATA4, MUS81, and NTRK1 in samples with atypical endometrial hyperplasia compared to samples with normal endometrial tissue, and higher methylation rates were found in samples with atypical endometrial hyperplasia compared to samples of benign endometrial hyperplasia. DNA methylation of TWIST1, GATA4, MUS81, and NTRK1 is involved in the pathogenesis of atypical endometrial hyperplasia.


Asunto(s)
Metilación de ADN , Hiperplasia Endometrial , Factor de Transcripción GATA4 , Receptor trkA , Proteína 1 Relacionada con Twist , Adulto , Femenino , Humanos , Persona de Mediana Edad , Hiperplasia Endometrial/genética , Hiperplasia Endometrial/patología , Hiperplasia Endometrial/metabolismo , Factor de Transcripción GATA4/genética , Factor de Transcripción GATA4/metabolismo , Genes Supresores de Tumor , Proteínas Nucleares/genética , Receptor trkA/genética , Proteína 1 Relacionada con Twist/genética , Proteínas de Unión al ADN/genética , Endonucleasas/genética
4.
Gynecol Oncol ; 162(3): 652-660, 2021 09.
Artículo en Inglés | MEDLINE | ID: mdl-34294416

RESUMEN

OBJECTIVE: DCVAC/OvCa is an active cellular immunotherapy designed to stimulate an immune response against ovarian cancer. We explored the safety and efficacy of DCVAC/OvCa plus carboplatin and gemcitabine in platinum-sensitive ovarian cancer. METHODS: In this open-label, parallel-group, phase 2 trial (ClinicalTrials.gov number NCT02107950), patients with platinum-sensitive ovarian cancer relapsing after first-line chemotherapy were randomized to DCVAC/OvCa and chemotherapy or chemotherapy alone. DCVAC/OvCa was administered every 3-6 weeks (10 doses). Endpoints included safety, progression-free survival (PFS; primary efficacy endpoint) and overall survival (OS; secondary efficacy endpoint). RESULTS: Between November 2013 and May 2015, 71 patients were randomized to chemotherapy in combination with DCVAC/OvCa or to chemotherapy alone. Treatment-emergent adverse events related to DCVAC/OvCa, leukapheresis and chemotherapy occurred in six (16.2%), two (5.4%), and 35 (94.6%) patients in the DCVAC/OvCa group. Chemotherapy-related events occurred in all patients in the chemotherapy group. Seven patients in the DCVAC/OvCa group were excluded from primary efficacy analyses due to failure to receive ≥1 dose of DCVAC/OvCa. PFS was not improved (hazard ratio [HR] 0.73, 95% confidence interval [CI] 0.42-1.28, P = 0.274, data maturity 78.1%). Median OS was significantly prolonged (by 13.4 months) in the DCVAC/OvCa group (HR 0.38, 95% CI 0.20-0.74, P = 0.003; data maturity 56.3%). A signal for enhanced surrogate antigen-specific T-cell activity was seen with DCVAC/OvCa. CONCLUSIONS: DCVAC/OvCa combined with chemotherapy had a favorable safety profile in patients with platinum-sensitive ovarian cancer. DCVAC/OvCa did not improve PFS, but the exploratory analyses revealed OS prolongation and enhanced surrogate antigen-specific T-cell activity.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Carcinoma Epitelial de Ovario/terapia , Células Dendríticas/inmunología , Inmunoterapia Adoptiva/métodos , Neoplasias Ováricas/terapia , Adulto , Anciano , Anciano de 80 o más Años , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Carboplatino/administración & dosificación , Terapia Combinada , Células Dendríticas/trasplante , Desoxicitidina/administración & dosificación , Desoxicitidina/análogos & derivados , Femenino , Humanos , Inmunoterapia Adoptiva/efectos adversos , Persona de Mediana Edad , Estadificación de Neoplasias , Neoplasias Ováricas/tratamiento farmacológico , Neoplasias Ováricas/inmunología , Neoplasias Ováricas/patología , Gemcitabina
5.
Ceska Gynekol ; 86(4): 284-290, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34493055

RESUMEN

OBJECTIVE: Historical and current view on the therapy of overactive bladder. METHODS: This review summarizes the historical approach and current therapy of overactive bladder. The articles were gathered from Pubmed and Scopus databases. Studies published before December 2020 were used for the review. RESULTS AND CONCLUSION: Overactive bladder is a condition that quite a lot reduces the quality of life of our patients. Our therapeutic approach starts with non-pharmacological treatment, such as pelvic floor exercises. The next step is a pharmacological approach. The entry level drug is trospium. If the effect is not sufficient, propiverine, solifenacin, fesoterodine, darifenacin or mirabegron are used. Electrostimulation or botulinum toxin A application is an option only in cases that didnt respond to pharmacological treatment. It is safe to say, that in the end, there is a way of reducing the severity of overactive bladder symptoms for every  patient.


Asunto(s)
Vejiga Urinaria Hiperactiva , Compuestos de Bencidrilo , Humanos , Antagonistas Muscarínicos/uso terapéutico , Calidad de Vida , Succinato de Solifenacina , Resultado del Tratamiento , Vejiga Urinaria Hiperactiva/terapia
6.
Ceska Gynekol ; 86(4): 246-248, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34493049

RESUMEN

OBJECTIVE: Summarizing of treatment options for locally recurrent vulvar cancer in patients after previous complex oncological treatment and presenting a case report from our department. METHODS: Presenting a case report of a patient after previous complex oncological treatment for spinocellular cancer of the vulva who presented with a locally recurrent tumor. The patient was treated with a wide radical local excision of the tumor followed by a posterior thigh flap graft. CONCLUSION: Surgical intervention is the primary mode of treatment in locally recurrent cancers of the vulva. Wide radical local excision as a mode of treatment can be optimized by the use of grafts aiding in wound healing.


Asunto(s)
Carcinoma de Células Escamosas , Neoplasias de la Vulva , Femenino , Humanos , Recurrencia Local de Neoplasia/cirugía , Neoplasias de la Vulva/cirugía
7.
Am J Obstet Gynecol ; 223(1): 114.e1-114.e20, 2020 07.
Artículo en Inglés | MEDLINE | ID: mdl-32591087

RESUMEN

BACKGROUND: Preterm prelabor rupture of the membranes (PPROM) is frequently complicated by intraamniotic inflammatory processes such as intraamniotic infection and sterile intraamniotic inflammation. Antibiotic therapy is recommended to patients with PPROM to prolong the interval between this complication and delivery (latency period), reduce the risk of clinical chorioamnionitis, and improve neonatal outcome. However, there is a lack of information regarding whether the administration of antibiotics can reduce the intensity of the intraamniotic inflammatory response or eradicate microorganisms in patients with PPROM. OBJECTIVE: The first aim of the study was to determine whether antimicrobial agents can reduce the magnitude of the intraamniotic inflammatory response in patients with PPROM by assessing the concentrations of interleukin-6 in amniotic fluid before and after antibiotic treatment. The second aim was to determine whether treatment with intravenous clarithromycin changes the microbial load of Ureaplasma spp DNA in amniotic fluid. STUDY DESIGN: A retrospective cohort study included patients who had (1) a singleton gestation, (2) PPROM between 24+0 and 33+6 weeks, (3) a transabdominal amniocentesis at the time of admission, and (4) intravenous antibiotic treatment (clarithromycin for patients with intraamniotic inflammation and benzylpenicillin/clindamycin in the cases of allergy in patients without intraamniotic inflammation) for 7 days. Follow-up amniocenteses (7th day after admission) were performed in the subset of patients with a latency period lasting longer than 7 days. Concentrations of interleukin-6 were measured in the samples of amniotic fluid with a bedside test, and the presence of microbial invasion of the amniotic cavity was assessed with culture and molecular microbiological methods. Intraamniotic inflammation was defined as a bedside interleukin-6 concentration ≥745 pg/mL in the samples of amniotic fluid. Intraamniotic infection was defined as the presence of both microbial invasion of the amniotic cavity and intraamniotic inflammation; sterile intraamniotic inflammation was defined as the presence of intraamniotic inflammation without microbial invasion of the amniotic cavity. RESULTS: A total of 270 patients with PPROM were included in this study: 207 patients delivered within 7 days and 63 patients delivered after 7 days of admission. Of the 63 patients who delivered after 7 days following the initial amniocentesis, 40 underwent a follow-up amniocentesis. Patients with intraamniotic infection (n = 7) and sterile intraamniotic inflammation (n = 7) were treated with intravenous clarithromycin. Patients without either microbial invasion of the amniotic cavity or intraamniotic inflammation (n = 26) were treated with benzylpenicillin or clindamycin. Treatment with clarithromycin decreased the interleukin-6 concentration in amniotic fluid at the follow-up amniocentesis compared to the initial amniocentesis in patients with intraamniotic infection (follow-up: median, 295 pg/mL, interquartile range [IQR], 72-673 vs initial: median, 2973 pg/mL, IQR, 1750-6296; P = .02) and in those with sterile intraamniotic inflammation (follow-up: median, 221 pg/mL, IQR 118-366 pg/mL vs initial: median, 1446 pg/mL, IQR, 1300-2941; P = .02). Samples of amniotic fluid with Ureaplasma spp DNA had a lower microbial load at the time of follow-up amniocentesis compared to the initial amniocentesis (follow-up: median, 1.8 × 104 copies DNA/mL, 2.9 × 104 to 6.7 × 108 vs initial: median, 4.7 × 107 copies DNA/mL, interquartile range, 2.9 × 103 to 3.6 × 107; P = .03). CONCLUSION: Intravenous therapy with clarithromycin was associated with a reduction in the intensity of the intraamniotic inflammatory response in patients with PPROM with either intraamniotic infection or sterile intraamniotic inflammation. Moreover, treatment with clarithromycin was related to a reduction in the load of Ureaplasma spp DNA in the amniotic fluid of patients with PPROM <34 weeks of gestation.


Asunto(s)
Antibacterianos/uso terapéutico , Infecciones Bacterianas/prevención & control , Corioamnionitis/prevención & control , Claritromicina/uso terapéutico , Clindamicina/uso terapéutico , Rotura Prematura de Membranas Fetales , Penicilina G/uso terapéutico , Adulto , Líquido Amniótico/química , Infecciones Bacterianas/etiología , Corioamnionitis/etiología , Estudios de Cohortes , ADN Bacteriano/análisis , Femenino , Humanos , Interleucina-6/análisis , Embarazo , Estudios Retrospectivos , Ureaplasma/genética
8.
Mycoses ; 60(4): 260-265, 2017 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-28066940

RESUMEN

Vulvovaginal candidiasis (VVC) is a hormonal-dependent infection but in contrast to sporadic VVC, therapy of recurrent vulvovaginal candidiasis (RVVC) is still unsolved. Long-term administration of medroxyprogesterone acetate was evaluated for the management of RVVC. Overall, 20 patients were treated with Depo-Provera; 14 patients were treated with Provera. Gestagen therapy was evaluated based on visual analogue scale (VAS), the frequency of attacks, the side effects of gestagens and the consumption of antifungals. There was a reduced symptomatology in both of the groups and substantial reduction in antifungal drug consumption during the second year of gestagen use. Twenty-four patients (70.6%) evaluated their condition regarding the vulvovaginal area as improvement (VAS decrease of 3-5 points). Five patients (14.7%) mentioned minimal or no improvement. Further, a number of antifungal drug-treated episodes dropped dramatically during the study period. Both regimes provided similar results, but five patients from the Depo-Provera group had to withdraw from gestagen therapy. Gestagen supplementation ameliorated the quality of life for the majority of patients with RVVC and suggested a potential role in the management of this syndrome, even if beneficial effect was evident after longer application, and some patients met with side effects that led to an interruption of therapy.


Asunto(s)
Antifúngicos/uso terapéutico , Candidiasis Vulvovaginal/tratamiento farmacológico , Acetato de Medroxiprogesterona/uso terapéutico , Progestinas/uso terapéutico , Adolescente , Adulto , Candida/aislamiento & purificación , Candida/ultraestructura , Candidiasis Vulvovaginal/microbiología , Manejo de la Enfermedad , Femenino , Humanos , Acetato de Medroxiprogesterona/administración & dosificación , Acetato de Medroxiprogesterona/efectos adversos , Proyectos Piloto , Progestinas/administración & dosificación , Progestinas/efectos adversos , Estudios Prospectivos , Calidad de Vida , Recurrencia , Tiempo , Escala Visual Analógica , Adulto Joven
9.
Lancet Oncol ; 16(1): 87-97, 2015 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-25481791

RESUMEN

BACKGROUND: The poly(ADP-ribose) polymerase inhibitor olaparib has shown antitumour activity in patients with platinum-sensitive, recurrent, high-grade serous ovarian cancer with or without BRCA1 or BRCA2 mutations. The aim of this study was to assess the efficacy and tolerability of olaparib in combination with chemotherapy, followed by olaparib maintenance monotherapy, versus chemotherapy alone in patients with platinum-sensitive, recurrent, high-grade serous ovarian cancer. METHODS: In this randomised, open-label, phase 2 study, adult patients with platinum-sensitive, recurrent, high-grade serous ovarian cancer who had received up to three previous courses of platinum-based chemotherapy and who were progression free for at least 6 months before randomisation received either olaparib (200 mg capsules twice daily, administered orally on days 1-10 of each 21-day cycle) plus paclitaxel (175 mg/m(2), administered intravenously on day 1) and carboplatin (area under the curve [AUC] 4 mg/mL per min, according to the Calvert formula, administered intravenously on day 1), then olaparib monotherapy (400 mg capsules twice daily, given continuously) until progression (the olaparib plus chemotherapy group), or paclitaxel (175 mg/m(2) on day 1) and carboplatin (AUC 6 mg/mL per min on day 1) then no further treatment (the chemotherapy alone group). Randomisation was done by an interactive voice response system, stratified by number of previous platinum-containing regimens received and time to disease progression after the previous platinum regimen. The primary endpoint was progression-free survival according to Response Evaluation Criteria in Solid Tumors version 1.1, analysed by intention to treat. Prespecified exploratory analyses included efficacy by BRCA mutation status, assessed retrospectively. This study is registered with ClinicalTrials.gov, number NCT01081951, and has been completed. FINDINGS: Between Feb 12 and July 30, 2010, 173 patients at 43 investigational sites in 12 countries were enrolled into the study, of whom 162 were eligible and were randomly assigned to the two treatment groups (81 to the olaparib plus chemotherapy group and 81 to the chemotherapy alone group). Of these randomised patients, 156 were treated in the combination phase (81 in the olaparib plus chemotherapy group and 75 in the chemotherapy alone group) and 121 continued to the maintenance or no further treatment phase (66 in the olaparib plus chemotherapy group and 55 in the chemotherapy alone group). BRCA mutation status was known for 107 patients (either at baseline or determined retrospectively): 41 (38%) of 107 had a BRCA mutation (20 in the olaparib plus chemotherapy group and 21 in the chemotherapy alone group). Progression-free survival was significantly longer in the olaparib plus chemotherapy group (median 12.2 months [95% CI 9.7-15.0]) than in the chemotherapy alone group (median 9.6 months [95% CI 9.1-9.7) (HR 0.51 [95% CI 0.34-0.77]; p=0.0012), especially in patients with BRCA mutations (HR 0.21 [0.08-0.55]; p=0.0015). In the combination phase, adverse events that were reported at least 10% more frequently with olaparib plus chemotherapy than with chemotherapy alone were alopecia (60 [74%] of 81 vs 44 [59%] of 75), nausea (56 [69%] vs 43 [57%]), neutropenia (40 [49%] vs 29 [39%]), diarrhoea (34 [42%] vs 20 [27%]), headache (27 [33%] vs seven [9%]), peripheral neuropathy (25 [31%] vs 14 [19%]), and dyspepsia (21 [26%] vs 9 [12%]); most were of mild-to-moderate intensity. The most common grade 3 or higher adverse events during the combination phase were neutropenia (in 35 [43%] of 81 patients in the olaparib plus chemotherapy group vs 26 [35%] of 75 in the chemotherapy alone group) and anaemia (seven [9%] vs five [7%]). Serious adverse events were reported in 12 (15%) of 81 patients in the olaparib plus chemotherapy group and 16 of 75 (21%) patients in the chemotherapy alone group. INTERPRETATION: Olaparib plus paclitaxel and carboplatin followed by maintenance monotherapy significantly improved progression-free survival versus paclitaxel plus carboplatin alone, with the greatest clinical benefit in BRCA-mutated patients, and had an acceptable and manageable tolerability profile. FUNDING: AstraZeneca.


Asunto(s)
Antineoplásicos/administración & dosificación , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Inhibidores Enzimáticos/administración & dosificación , Recurrencia Local de Neoplasia , Neoplasias Quísticas, Mucinosas y Serosas/tratamiento farmacológico , Neoplasias Ováricas/tratamiento farmacológico , Ftalazinas/administración & dosificación , Piperazinas/administración & dosificación , Inhibidores de Poli(ADP-Ribosa) Polimerasas , Administración Intravenosa , Administración Oral , Adulto , Anciano , Antineoplásicos/efectos adversos , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Proteína BRCA1/genética , Proteína BRCA2/genética , Carboplatino/administración & dosificación , Supervivencia sin Enfermedad , Esquema de Medicación , Inhibidores Enzimáticos/efectos adversos , Femenino , Humanos , Persona de Mediana Edad , Terapia Molecular Dirigida , Mutación , Clasificación del Tumor , Neoplasias Quísticas, Mucinosas y Serosas/enzimología , Neoplasias Quísticas, Mucinosas y Serosas/mortalidad , Neoplasias Quísticas, Mucinosas y Serosas/patología , Neoplasias Ováricas/enzimología , Neoplasias Ováricas/genética , Neoplasias Ováricas/mortalidad , Neoplasias Ováricas/patología , Paclitaxel/administración & dosificación , Ftalazinas/efectos adversos , Piperazinas/efectos adversos , Poli(ADP-Ribosa) Polimerasas/metabolismo , Factores de Tiempo , Resultado del Tratamiento , Adulto Joven
10.
Int J Gynecol Cancer ; 25(2): 236-43, 2015 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-25594141

RESUMEN

OBJECTIVE: This study aimed to evaluate the correlation between the expressions of lung resistance protein (LRP), P-glycoprotein (Pgp), multidrug resistance-associated protein (MRP)-1, MRP3, and MRP5 and histopathological parameters and clinical outcome, and to determine the predictive and prognostic value of these transport proteins in patients with ovarian cancer. METHODS: Tumor samples from 111 chemonaive patients with epithelial ovarian cancer who underwent primary surgery from 2006 to 2010 were immunohistochemically stained for LRP, Pgp, MRP1, MRP3, and MRP5 expressions. RESULTS: MRP1 expression was greater among patients with late disease than among patients with early stage ovarian cancer [International Federation of Gynecology and Obstetrics (FIGO) I + II, 71.6% (confidence interval, 60-100); FIGO III + IV, 83.6% (confidence interval, 100-100); P = 0.03]. The histological subtype correlated with the expressions of LRP, Pgp, MRP1, and MRP3. Relapse of disease during the next 24 months occurred more often among patients with higher Pgp and MRP1 than among patients with lower Pgp and MRP1 expressions. FIGO stage, histological type, debulking efficiency, strong Pgp expression, and strong MRP1 expression correlated significantly with shorter progression-free survival (log-rank test, P = 0.001, P = 0.004, P = 0.001, P = 0.051, and P = 0.046, respectively). FIGO stage, histological type, debulking efficiency, and strong MRP1 expression correlated with poor patient survival (log-rank test, P = 0.001, P = 0.042, P = 0.005, and P = 0.018, respectively). CONCLUSIONS: Pgp and MRP1 expressions were clinically significant in patients with ovarian cancer. Pgp and MRP1 may be reliable, independent predictive and prognostic factors regarding the clinical outcome of ovarian cancer. MRP3 is less important as a predictive and prognostic factor than MRP1 expression. MRP5 and LRP expressions were not applicable prognostic parameters regarding ovarian cancer.


Asunto(s)
Biomarcadores de Tumor/metabolismo , Resistencia a Antineoplásicos , Neoplasias Glandulares y Epiteliales/tratamiento farmacológico , Neoplasias Ováricas/tratamiento farmacológico , Miembro 1 de la Subfamilia B de Casetes de Unión a ATP/metabolismo , Adulto , Anciano , Anciano de 80 o más Años , Carcinoma Epitelial de Ovario , Femenino , Humanos , Persona de Mediana Edad , Proteínas Asociadas a Resistencia a Múltiples Medicamentos/metabolismo , Neoplasias Glandulares y Epiteliales/metabolismo , Neoplasias Glandulares y Epiteliales/mortalidad , Neoplasias Glandulares y Epiteliales/patología , Neoplasias Ováricas/metabolismo , Neoplasias Ováricas/mortalidad , Neoplasias Ováricas/patología , Pronóstico , Análisis de Supervivencia , Partículas Ribonucleoproteicas en Bóveda/metabolismo
11.
Rep Pract Oncol Radiother ; 20(4): 309-15, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-26109920

RESUMEN

OBJECTIVE: Compared to Fanconi anemia (FA) patients with homozygous defective two-alleles inheritance, there is a scarce or no evidence on one defective allele FANCA carriers, with respect to their cancer incidence, clinical and in vitro radiosensitivity and chemosensitivity. On that account, we report a case of a 30-year old FANCA mutation carrier woman with uterine cervix adenocarcinoma who was treated with chemoradiotherapy, in which unexpected acute toxicity and fatal late morbidity occured. METHODS: We also report the results of an in vitro test for radiosensitivity, immunohistochemical examination with FANCA staining and human papillomavirus genotypization, and a review of the literature for FA carrier patients with respect to cancer incidence, clinical and in vitro response to chemo/radiotherapy, options of early heterozygosity detection, and methods of in vitro prediction of hypersensitivity to oncologic treatment. CONCLUSION: Although there are no standard guidelines for management of FA carriers with malignancies and reports about chemo- or radiosensitivity in this population are scarce; patients with FA-A heterozygosity may have a high rate of complications from chemo/radiotherapy. Up to now, an optimum method for the prediction of radiosensitivity and the best parameter has not been found. Clinical radioresponsiveness is unpredictable in FA carriers and there is a pressing need of new rapid and predictive in vitro assays of radiation responses. Until then, the treatment of FA carriers with malignancies should be individualized, with respect to potential hypersensitivity to ionizing radiation or cross-linking agents.

12.
Clin Chem Lab Med ; 52(8): 1229-34, 2014 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-24651021

RESUMEN

BACKGROUND: Epigenetic changes are considered to be a frequent event during tumor development. Various methylation changes have been identified and show promise as potential cancer biomarkers. The aim of this study was to investigate promoter methylation of GATA4 and TP53 genes in endometrioid carcinoma of endometrium. METHODS: To search for promoter methylation of GATA4 and TP53 genes we used methylation-specific PCR (MSP) to compare the methylation status of 54 patients with endometrioid carcinoma of endometrium and 18 patients with normal endometrial tissue. RESULTS: In our study MSP revealed GATA4 promoter methylation in 44 of 54 in the carcinoma group (81.5%), and in none of the control group. No methylation was observed in TP53 gene. CONCLUSIONS: In conclusion, our study showed that there is significantly higher methylation in GATA4 gene in the endometrial cancer group compared with samples of non-neoplastic endometrium. The finding suggests the importance of hypermethylation of this gene in endometrial carcinogenesis and could have implications for future diagnostic and therapeutic strategies for endometrial cancer based on epigenetic changes.


Asunto(s)
Carcinoma Endometrioide/genética , Metilación de ADN , Neoplasias Endometriales/genética , Factor de Transcripción GATA4/genética , Genes p53 , Adulto , Anciano , Anciano de 80 o más Años , Estudios de Casos y Controles , Epigénesis Genética , Femenino , Regulación Neoplásica de la Expresión Génica , Humanos , Persona de Mediana Edad , Regiones Promotoras Genéticas
13.
Artículo en Inglés | MEDLINE | ID: mdl-36628559

RESUMEN

AIMS: To investigate DNA methylation of specific gene promoters in endometrial hyperplasia compared to normal endometrial tissue. MATERIALS AND METHODS: To search for epigenetic events, methylation-specific multiplex ligation-dependent probe amplification was employed to compare the methylation status of 64 tissue samples with atypical endometrial hyperplasia, 60 tissue samples with endometrial hyperplasia without atypia, and 40 control tissue samples with normal endometrium. RESULTS: Differences in DNA methylation among the groups were found in PTEN, CDH13, and MSH6 promoters (PTEN: atypical hyperplasia 32%, benign hyperplasia 6.8%, normal endometrium 10%; P=0.004; CDH13: atypical hyperplasia, 50%; benign hyperplasia, 43%; normal endometrium 8.1%; P=0.003; MSH6 atypical hyperplasia 84%, benign hyperplasia, 62%; normal endometrium, 52%; P=0.008.) Higher rates of CDH13 promoter methylation were identified in the groups with both forms of endometrial hyperplasia when compared to the control group (atypical hyperplasia, P=0.003, benign hyperplasia, P=0.0002). A higher rate of DNA methylation of the PTEN and MSH6 promoters was observed in samples with atypical endometrial hyperplasia than in samples with benign endometrial hyperplasia (PTEN: P=0.02; MSH6: P=0.01) and samples with normal endometrial tissue (PTEN, P=0.04; MSH6, P=0.006). CONCLUSION: DNA methylation of CDH13, PTEN, and MSH6 appear to be involved in the development of endometrial hyperplasia.


Asunto(s)
Hiperplasia Endometrial , Neoplasias Endometriales , Femenino , Humanos , Hiperplasia Endometrial/genética , Hiperplasia Endometrial/patología , Metilación de ADN/genética , Hiperplasia/genética , Neoplasias Endometriales/genética , Neoplasias Endometriales/patología , Genes Supresores de Tumor , Proteínas de Unión al ADN/genética
14.
Int Urol Nephrol ; 2024 Oct 14.
Artículo en Inglés | MEDLINE | ID: mdl-39402323

RESUMEN

INTRODUCTION: Autosomal dominant polycystic kidney disease (ADPKD) is a common genetic disorder that frequently leads to end-stage renal disease. In this study, we examine the indications, procedures, and outcomes of native nephrectomy (NN) in ADPKD patients at our transplant center. Drawing on 25 years of clinical practice, we aim to provide insights into the surgical management of ADPKD, focusing on the specific factors influencing NN. MATERIALS AND METHODS: A retrospective study was conducted involving ADPKD patients who underwent KT and NN between 1999 and 2023. Collected data encompassed demographics and surgery parameters, such as duration, hospital stay length, blood loss, and complications. Patients were classified based on the urgency (acute/planned) of the NN and its type (unilateral/bilateral), followed by an analysis of the outcomes per group. RESULTS: Out of 152 patients post-KT for ADPKD, 89 (58.6%) underwent NN. The procedures were predominantly unilateral (71; 64%), with bilateral NN accounting for 40 (36%) cases. NN timing relative to KT was 31 (27.9%) pretransplant, 9 (8.1%) concomitant, 51 (45.9%) posttransplant, and 10 (9%) patients undergoing the sandwich technique. Acute NN were performed in 42 cases, while 69 were planned. Acute NNs were associated with longer surgeries, greater blood loss, and a higher incidence of perioperative complications compared to planned NNs. Specifically, unilateral acute NN had a 23.8% complication rate compared to 2.9% in planned cases; bilateral acute NN showed a 28.6% complication rate versus 4.3% in planned cases. CONCLUSION: This investigation accentuates the significance of planning and selection in NN for ADPKD, factoring in the heightened risk of complications. Acute NN are linked to worse outcomes, including higher rates of complications. The data emphasize the necessity of tailored surgical approaches based on individual patient circumstances.

15.
J Low Genit Tract Dis ; 17(4): e1-4, 2013 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-23903198

RESUMEN

OBJECTIVE: The study aimed to provide a description of a new and a hopeful possibility in the treatment of severe vulvodynia, which does not respond to treatments used so far. MATERIALS AND METHODS: The use of radiofrequency therapy in vulvodynia treatment is described for the first time. This method was suggested by a neurosurgeon after applying all available possibilities. RESULT: In this article, we are reporting on the successful use of the pulsed radiofrequency treatment in a patient with intractable chronic vulvodynia. CONCLUSIONS: To our knowledge, this is the first report of a successful use of pulsed radiofrequency in the treatment of chronic vulvodynia. If efficacy of pulsed radiofrequency is confirmed by more studies, it would be a welcome addition to the treatment modalities used to treat this sometimes truly intractable condition.


Asunto(s)
Tratamiento de Radiofrecuencia Pulsada/métodos , Vulvodinia/radioterapia , Enfermedad Crónica , Femenino , Humanos , Persona de Mediana Edad , Resultado del Tratamiento
16.
Exp Clin Transplant ; 21(9): 712-716, 2023 09.
Artículo en Inglés | MEDLINE | ID: mdl-37885285

RESUMEN

OBJECTIVES: We evaluated the feasibility, safety, and long-term outcomes of pyelovesicostomy as an alternative surgical treatment for complex ureteral lesions after kidney transplant. MATERIALS AND METHODS: A single-center, retrospective, observational cohort study was conducted on 5 adult kidney transplant recipients who underwent pyelovesicostomy between January 2000 and June 2023. The collected data included patient demographics, surgery indication, time from transplant to pyelovesicostomy, procedure details, and kidney function at various time points after surgery. Primary outcomes were allograft function and complications. RESULTS: The 5 patients (4 female, 1 male) had a mean age of 65.8 years and mean body mass index of 26.8. Indications were complex ureteral lesions. The time between transplant and reoperation ranged from 4 days to 12 years. Renal function improved for all patients, with a progressive decrease in mean serum creatinine concentration. The mean follow-up period extended to 7 years. One patient died with the graft still functional at 20 years after the operation, whereas the remaining 4 patients continue to live with functional grafts. CONCLUSIONS: Our study suggests that pyelovesicostomy may provide a potent alternative for the management of complex ureteral lesions after kidney transplant. We have observed good short-term and long-term outcomes in specific patients, pointing toward a promising avenue oftreatment worth further exploration. This reaffirms the importance of a personalized approach in medicine, to consider each patient's unique conditions and characteristics during therapeutic decisions.


Asunto(s)
Trasplante de Riñón , Uréter , Adulto , Humanos , Masculino , Femenino , Anciano , Trasplante de Riñón/efectos adversos , Trasplante de Riñón/métodos , Estudios Retrospectivos , Uréter/cirugía , Uréter/patología , Estudios de Cohortes , Resultado del Tratamiento
17.
Gynecol Obstet Invest ; 73(1): 8-15, 2012.
Artículo en Inglés | MEDLINE | ID: mdl-22205034

RESUMEN

AIMS: To investigate if vaginal application of dequalinium chloride (DQC, Fluomizin®) is as effective as vaginal clindamycin (CLM) in the treatment of bacterial vaginosis (BV). METHODS: This was a multinational, multicenter, single-blind, randomized trial in 15 centers, including 321 women. They were randomized to either vaginal DQC tablets or vaginal CLM cream. Follow-up visits were 1 week and 1 month after treatment. Clinical cure based on Amsel's criteria was the primary outcome. Secondary outcomes were rate of treatment failures and recurrences, incidence of post-treatment vulvovaginal candidosis (VVC), lactobacillary grade (LBG), total symptom score (TSC), and safety. RESULTS: Cure rates with DQC (C1: 81.5%, C2: 79.5%) were as high as with CLM (C1: 78.4%, C2: 77.6%). Thus, the treatment with DQC had equal efficacy as CLM cream. A trend to less common post-treatment VVC in the DQC-treated women was observed (DQC: 2.5%, CLM: 7.7%; p = 0.06). Both treatments were well tolerated with no serious adverse events occurring. CONCLUSION: Vaginal DQC has been shown to be equally effective as CLM cream, to be well tolerated with no systemic safety concerns, and is therefore a valid alternative therapy for women with BV [ClinicalTrials.gov, Med380104, NCT01125410].


Asunto(s)
Clindamicina/administración & dosificación , Decualinio/administración & dosificación , Vaginosis Bacteriana/tratamiento farmacológico , Adolescente , Adulto , Candidiasis Vulvovaginal/etiología , Clindamicina/efectos adversos , Decualinio/efectos adversos , Femenino , Estudios de Seguimiento , Humanos , Persona de Mediana Edad , Método Simple Ciego , Resultado del Tratamiento , Cremas, Espumas y Geles Vaginales/administración & dosificación , Vaginosis Bacteriana/complicaciones , Adulto Joven
18.
PLoS One ; 17(8): e0271467, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35925910

RESUMEN

INTRODUCTION AND HYPOTHESIS: The pathophysiology of pelvic organ prolapse (POP) has not been fully elucidated, although accumulating evidence suggests that oxidative stress is involved. The present systematic review comprehensively discusses this topic. METHODS: The PubMed/Medline, Scopus, and Web of Science databases were searched for relevant studies published up to May 2021. This systematic review was registered in the PROSPERO database (registration number CRD42021242240). Two independent researchers screened and selected articles that fulfilled predefined inclusion criteria, performed a quality assessment, and extracted the relevant data. Of 901 original articles retrieved, 8 fulfilled the selection criteria and were included in the review. RESULTS: Elevated levels of markers of oxidative stress, such as advanced glycation end products, hydroxynonenal and hydroxydeoxyguanosine, were found in various parts of the pelvic floor of patients with POP. Accordingly, the levels of glutathione peroxidase and superoxide dismutase, known as major antioxidant enzymes, were reduced, compared to those in healthy controls. Levels of two other markers (mitofusin 2 and nuclear factor erythroid derived 2) also support hypotheses suggesting the involvement of oxidative stress in POP. CONCLUSIONS: In the literature available, an association between oxidative stress and pelvic organ prolapse was confirmed.


Asunto(s)
Prolapso de Órgano Pélvico , Humanos , Estrés Oxidativo , Diafragma Pélvico
19.
Cancers (Basel) ; 14(24)2022 Dec 19.
Artículo en Inglés | MEDLINE | ID: mdl-36551733

RESUMEN

BACKGROUND: Low-dose-rate brachytherapy is an effective organ-sparing treatment for patients with early-stage penile cancer. However, only limited data are available on the role of high-dose-rate brachytherapy (HDR-BT) in this clinical setting. METHODS: Between 2002 and 2020, 31 patients with early penile cancer were treated at our center with interstitial HDR BT at a dose of 18 × 3 Gy twice daily. A breast brachytherapy template was used for the fixation of stainless hollow needles. RESULTS: The median follow-up was 117.5 months (range, 5-210). Eight patients (25.8%) developed a recurrence; of these, seven were salvaged by partial amputation. Six patients died of internal comorbidities or a second cancer. The probability of local control at 5 and 10 years was 80.7% (95% CI: 63.7-97.7%) and 68.3% (95% CI: 44.0-92.6%), respectively. Cause-specific survival was 100%. Only one case of radiation-induced necrosis was observed. The probability of penile sparing at 5 and 10 years was 80.6% (95% CI: 63.45-97.7%) and 62.1% (95% CI: 34.8-89.4%), respectively. CONCLUSIONS: These results show that HDR-BT for penile cancer can achieve results comparable to LDR-BT with organ sparing. Despite the relatively large patient cohort-the second largest reported to date in this clinical setting-prospective data from larger samples are needed to confirm the role of HDR-BT in penile cancer.

20.
J Immunother Cancer ; 10(1)2022 01.
Artículo en Inglés | MEDLINE | ID: mdl-34992091

RESUMEN

BACKGROUND: Most patients with epithelial ovarian cancer (EOC) relapse despite primary debulking surgery and chemotherapy (CT). Autologous dendritic cell immunotherapy (DCVAC) can present tumor antigens to elicit a durable immune response. We hypothesized that adding parallel or sequential DCVAC to CT stimulates antitumor immunity and improves clinical outcomes in patients with EOC. Based on the interim results of sequential DCVAC/OvCa administration and to accommodate the increased interest in maintenance treatment in EOC, the trial was amended by adding Part 2. METHODS: Patients with International Federation of Gynecology and Obstetrics stage III EOC (serous, endometrioid, or mucinous), who underwent cytoreductive surgery up to 3 weeks prior to randomization and were scheduled for first-line platinum-based CT were eligible. Patients, stratified by tumor residuum (0 or <1 cm), were randomized (1:1:1) to DCVAC/OvCa parallel to CT (Group A), DCVAC/OvCa sequential to CT (Group B), or CT alone (Group C) in Part 1, and to Groups B and C in Part 2. Autologous dendritic cells for DCVAC were differentiated from patients' CD14+ monocytes, pulsed with two allogenic OvCa cell lines (SK-OV-3, OV-90), and matured in the presence of polyinosinic:polycytidylic acid. We report the safety outcomes (safety analysis set, Parts 1 and 2 combined) along with the primary (progression-free survival (PFS)) and secondary (overall survival (OS)) efficacy endpoints. Efficacy endpoints were assessed in the modified intention-to-treat (mITT) analysis set in Part 1. RESULTS: Between November 2013 and March 2016, 99 patients were randomized. The mITT (Part 1) comprised 31, 29, and 30 patients in Groups A, B, and C, respectively. Baseline characteristics and DCVAC/OvCa exposure were comparable across the treatment arms. DCVAC/OvCa showed a good safety profile with treatment-emergent adverse events related to DCVAC/OvCa in 2 of 34 patients (5.9%) in Group A and 2 of 53 patients (3.8%) in Group B. Median PFS was 20.3, not reached, and 21.4 months in Groups A, B, and C, respectively. The HR (95% CI) for Group A versus Group C was 0.98 (0.48 to 2.00; p=0.9483) and the HR for Group B versus Group C was 0.39 (0.16 to 0.96; p=0.0336). This was accompanied by a non-significant trend of improved OS in Groups A and B. Median OS was not reached in any group after a median follow-up of 66 months (34% of events). CONCLUSIONS: DCVAC/OvCa and leukapheresis was not associated with significant safety concerns in this trial. DCVAC/OvCa sequential to CT was associated with a statistically significant improvement in PFS in patients undergoing first-line treatment of EOC. TRIAL REGISTRATION NUMBER: NCT02107937, EudraCT2010-021462-30.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Carboplatino/uso terapéutico , Carcinoma Epitelial de Ovario/tratamiento farmacológico , Células Dendríticas/inmunología , Inmunoterapia/métodos , Paclitaxel/uso terapéutico , Acetilcisteína/análogos & derivados , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Animales , Protocolos de Quimioterapia Combinada Antineoplásica/farmacología , Carboplatino/farmacología , Femenino , Humanos , Ratones , Persona de Mediana Edad , Paclitaxel/farmacología , Adulto Joven
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