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1.
Transl Oncol ; 50: 102116, 2024 Sep 03.
Artículo en Inglés | MEDLINE | ID: mdl-39232378

RESUMEN

OBJECTIVES: The chemokine CCL22 is recognized for recruiting immunosuppressive regulatory T-cells (Treg) that contribute to disease progression in various tumor entities helping them to evade the host immune response. Our study aims to identify the expressing cell types and to evaluate the prognostic significance of CCL22 secretion and its association with Treg invasion in endometrial cancer (EC), an immunogenic cancer. METHODS: Specimens from 275 patients with EC and 28 healthy controls were screened immunohistochemically for CCL22. Immunofluorescence double-staining for CCL22 and different immune cell markers was performed. In vitro regulation of CCL22-expression was examined in EC cell lines (Ishikawa+, RL95-2) and human PBMCs in coculture settings via qPCR and ELISA. RESULTS: Elevated CCL22 staining in tumor cells and CCL22-positive M1-macrophages in tumordistant areas were significantly associated with increased overall survival (OS). Conversely, high, secretory-appearing staining in the peritumoral and intratumoral stroma correlated with reduced OS. Although the analysis of the in vitro coculture model of epithelial tumor- and immune cells revealed PBMCs as the primary source of CCL22, we could confirm expression of the chemokine also in the EC epithelial cells. CONCLUSION: Our study suggests that CCL22 in EC is associated with OS, dependent on its location and the cell type producing it. Intracellular upregulation and extracellular secretion must be considered separately when investigating CCL22 expressing cell types in EC. These results may provide evidence for CCL22-mediated Treg recruitment in EC as a potential future therapeutic target.

2.
Oncol Res Treat ; : 1-9, 2024 Aug 12.
Artículo en Inglés | MEDLINE | ID: mdl-39111294

RESUMEN

INTRODUCTION: The interdisciplinary empowerment seminar aims to familiarize patients and informal caregivers (ICs) with supportive measures, focusing on understanding disease, therapy, and side effect management. METHODS: The seminar, conducted in two courses over 1-month intervals prior to chemotherapy, included lectures, supportive materials, Q and A sessions, and individual discussions with experts in nutrition, exercise, psycho-oncology, and complementary medicine. Evaluation is based on a self-developed questionnaire and questionnaires on QoL (EORTC-QLQ-C30, BR23, CX24, OV28), anxiety and depression (HADS-D) at week 0, 5, 9, and 12. A control group with standard of care was evaluated at baseline and after 12 weeks. RESULTS: Between October 2020 and May 2021, 19 patients and 9 ICs participated in the seminar. The control group included 20 patients. 96.4% of participants were highly satisfied with the seminar and would recommend it. QoL deterioration was more pronounced in the control group (control: week 0 = 67.6; week 12 = 61.7; intervention: week 0 = 60.8; week 12 = 60.7). This trend could not be proven by analysis of interaction (mixed ANOVA: p = 0.114). Increased confidence of participants' knowledge about side effects was shown, and ICs reported higher confidence in knowledge and coping with the disease. CONCLUSIONS: The seminar received positive feedback and indicated increased knowledge and a trend toward better QoL preservation. Larger studies are needed for confirmation. The seminar effectively addressed unique needs, bolstering confidence and knowledge. Interdisciplinary patient and caregiver empowerment seminars can improve disease-related knowledge and positively affect QoL at the start of chemotherapy. Informational needs can be satisfied. Offering educational seminars and fostering individualized support networks can increase quality of care.

3.
Eur Radiol ; 2024 Aug 30.
Artículo en Inglés | MEDLINE | ID: mdl-39210162

RESUMEN

OBJECTIVES: With SARS-CoV-2 evolving, disease severity and presentation have changed due to changes in mechanisms of entry and effector site as well as due to effects of vaccination- and/or infection-acquired immunity. We re-assessed fetal lung pathology in pregnancies with uncomplicated SARS-CoV-2 infections during the late, omicron-dominated pandemic phase to inform disease understanding and pregnancy consultation. METHODS: In this case-control study, fetal lung volumes were assessed by fetal MRI in 24 pregnancies affected by mild maternal SARS-CoV-2 infection during the omicron-dominated pandemic phase with prevailing immunity through vaccination and/or prior SARS-CoV-2 infection. RESULTS: Fetal lung volumes (normalized to estimated fetal weight) in 24 pregnancies (GA 33.3 ± 3.8, 12 female fetuses) following mild, uncomplicated SARS-CoV-2 infection did not differ significantly from both, published reference values (96.3% ± 22.5% of 50th percentile reference values, p = 0.43), or fetal lung volumes of a site-specific, non-COVID control group (n = 15, 94.2% ± 18.5%, p = 0.76). Placental assessment revealed no group differences in thrombotic changes or placental heterogeneity (p > 0.05, respectively), and fetal lung volume did not correlate with placental heterogeneity when adjusting for gestational age at scan (p > 0.05). CONCLUSION: Assessment of fetal lung volume by MRI revealed unaffected lung growth in pregnancies affected by uncomplicated SARS-CoV-2 infection in the omicron-dominated pandemic phase in the presence of prevailing hybrid immunity. This finding contrasts sharply with the observed reduction in fetal lung volume following maternal alpha-variant infection in the pre-vaccination era and might reflect tropism- as well as immunity-related effects. KEY POINTS: Question: Is fetal lung development affected by mild maternal SARS-CoV-2 infection during the omicron-dominated phase of the pandemic? FINDINGS: Fetal lung volume in 24 affected pregnancies did not differ significantly from published reference values or fetal lung volumes in 15 site-specific, non-COVID-affected control pregnancies. CLINICAL RELEVANCE: Preserved fetal lung volume following mild maternal SARS-CoV-2 infection during the omicron-dominated phase contrasts with previous findings of reduced volume in unvaccinated pregnancies during the alpha-dominated pandemic phase. These observations might reflect tropism- as well as immunity-related effects.

4.
Int J Mol Sci ; 25(13)2024 Jun 24.
Artículo en Inglés | MEDLINE | ID: mdl-39000016

RESUMEN

Endometrial cancer (EC) is a common gynecological cancer worldwide. Treatment has been improved in recent years; however, in advanced stages, therapeutic options are still limited. The expression of galectins is increased in several tumor types and that they are involved in important cell processes. Large studies on endometrial cancer are still pending; Specimens of 225 patients with EC were immunohistochemically stained with antibodies for Gal-8 and Gal-9. Expression was correlated with histopathological variables. The cytosolic expression of both galectins is associated with grading and survival. Cytosolic Galectin-8 expression is a positive prognostic factor for overall survival (OS) and progression-free survival (PFS), while nuclear Gal-8 expression correlates only to OS. The cytosolic presence of Galectin-9 is correlated with a better prognosis regarding OS. Our results suggest that expression of both galectins is associated with OS and PFS in EC. Further studies are needed to understand the underlying molecular mechanisms.


Asunto(s)
Neoplasias Endometriales , Galectinas , Humanos , Galectinas/metabolismo , Galectinas/genética , Femenino , Neoplasias Endometriales/metabolismo , Neoplasias Endometriales/patología , Neoplasias Endometriales/mortalidad , Persona de Mediana Edad , Anciano , Pronóstico , Biomarcadores de Tumor/metabolismo , Adulto , Anciano de 80 o más Años , Inmunohistoquímica
6.
Int J Cancer ; 155(5): 934-945, 2024 Sep 01.
Artículo en Inglés | MEDLINE | ID: mdl-38709956

RESUMEN

We analyzed variations in the epidermal growth factor receptor (EGFR) gene and 5'-upstream region to identify potential molecular predictors of treatment response in primary epithelial ovarian cancer. Tumor tissues collected during debulking surgery from the prospective multicenter OVCAD study were investigated. Copy number variations in the human endogenous retrovirus sequence human endogenous retrovirus K9 (HERVK9) and EGFR Exons 7 and 9, as well as repeat length and loss of heterozygosity of polymorphic CA-SSR I and relative EGFR mRNA expression were determined quantitatively. At least one EGFR variation was observed in 94% of the patients. Among the 30 combinations of variations discovered, enhanced platinum sensitivity (n = 151) was found dominantly with HERVK9 haploidy and Exon 7 tetraploidy, overrepresented among patients with survival ≥120 months (24/29, p = .0212). EGFR overexpression (≥80 percentile) was significantly less likely in the responders (17% vs. 32%, p = .044). Multivariate Cox regression analysis, including age, FIGO stage, and grade, indicated that the patients' subgroup was prognostically significant for CA-SSR I repeat length <18 CA for both alleles (HR 0.276, 95% confidence interval 0.109-0.655, p = .001). Although EGFR variations occur in ovarian cancer, the mRNA levels remain low compared to other EGFR-mutated cancers. Notably, the inherited length of the CA-SSR I repeat, HERVK9 haploidy, and Exon 7 tetraploidy conferred three times higher odds ratio to survive for more than 10 years under therapy. This may add value in guiding therapies if determined during follow-up in circulating tumor cells or circulating tumor DNA and offers HERVK9 as a potential therapeutic target.


Asunto(s)
Cromosomas Humanos Par 7 , Variaciones en el Número de Copia de ADN , Receptores ErbB , Neoplasias Ováricas , Humanos , Femenino , Receptores ErbB/genética , Neoplasias Ováricas/genética , Neoplasias Ováricas/mortalidad , Neoplasias Ováricas/patología , Neoplasias Ováricas/tratamiento farmacológico , Persona de Mediana Edad , Cromosomas Humanos Par 7/genética , Estudios Prospectivos , Anciano , Carcinoma Epitelial de Ovario/genética , Carcinoma Epitelial de Ovario/mortalidad , Carcinoma Epitelial de Ovario/patología , Adulto , Retroelementos/genética , Fenotipo , Resistencia a Antineoplásicos/genética , Retrovirus Endógenos/genética , Pérdida de Heterocigocidad
8.
Int J Cancer ; 155(6): 1128-1138, 2024 Sep 15.
Artículo en Inglés | MEDLINE | ID: mdl-38676430

RESUMEN

Disease progression is a major problem in ovarian cancer. There are very few treatment options for patients with platinum-resistant ovarian cancer (PROC), and therefore, these patients have a particularly poor prognosis. The aim of the present study was to identify markers for monitoring the response of 123 PROC patients enrolled in the Phase I/II GANNET53 clinical trial, which evaluated the efficacy of Ganetespib in combination with standard chemotherapy versus standard chemotherapy alone. In total, 474 blood samples were collected, comprising baseline samples taken before the first administration of the study drugs and serial samples taken during treatment until further disease progression (PD). After microfluidic enrichment, 27 gene transcripts were analyzed using quantitative polymerase chain reaction and their utility for disease monitoring was evaluated. At baseline, ERCC1 was associated with an increased risk of PD (hazard ratio [HR] 1.75, 95% confidence interval [CI]: 1.20-2.55; p = 0.005), while baseline CDH1 and ESR1 may have a risk-reducing effect (CDH1 HR 0.66, 95% CI: 0.46-0.96; p = 0.024; ESR1 HR 0.58, 95% CI: 0.39-0.86; p = 0.002). ERCC1 was observed significantly more often (72.7% vs. 53.9%; p = 0.032) and ESR1 significantly less frequently (59.1% vs. 78.3%; p = 0.018) in blood samples taken at radiologically confirmed PD than at controlled disease. At any time during treatment, ERCC1-presence and ESR1-absence were associated with short PFS and with higher odds of PD within 6 months (odds ratio 12.77, 95% CI: 4.08-39.97; p < 0.001). Our study demonstrates the clinical relevance of ESR1 and ERCC1 and may encourage the analysis of liquid biopsy samples for the management of PROC patients.


Asunto(s)
Biomarcadores de Tumor , Resistencia a Antineoplásicos , Endonucleasas , Neoplasias Ováricas , Humanos , Femenino , Neoplasias Ováricas/tratamiento farmacológico , Neoplasias Ováricas/genética , Neoplasias Ováricas/sangre , Neoplasias Ováricas/patología , Resistencia a Antineoplásicos/genética , Endonucleasas/genética , Persona de Mediana Edad , Biomarcadores de Tumor/genética , Biomarcadores de Tumor/sangre , Anciano , Proteínas de Unión al ADN/genética , Proteínas de Unión al ADN/sangre , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Receptor alfa de Estrógeno/genética , Adulto , Pronóstico , Progresión de la Enfermedad , Regulación Neoplásica de la Expresión Génica , Platino (Metal)/uso terapéutico
9.
J Vis Exp ; (204)2024 02 23.
Artículo en Inglés | MEDLINE | ID: mdl-38465946

RESUMEN

While the establishment of an ovarian cancer biobank from patient-derived organoids along with their clinical background information promises advances in research and patient care, standardization remains a challenge due to the heterogeneity of this lethal malignancy, combined with the inherent complexity of organoid technology. This adaptable protocol provides a systematic framework to realize the full potential of ovarian cancer organoids considering a patient-specific variability of progenitors. By implementing a structured experimental workflow to select optimal culture conditions and seeding methods, with parallel testing of direct 3D seeding versus a 2D/3D route, we obtain, in most cases, robust long-term expanding lines suitable for a broad range of downstream applications. Notably, the protocol has been tested and proven efficient in a great number of cases (N = 120) of highly heterogeneous starting material, including high-grade and low-grade ovarian cancer and stages of the disease with primary debulking, recurrent disease, and post-neoadjuvant surgical specimens. Within a low Wnt, high BMP exogenous signaling environment, we observed progenitors being differently susceptible to the activation of the Heregulin 1 ß (HERß-1)-pathway, with HERß-1 promoting organoid formation in some while inhibiting it in others. For a subset of the patient's samples, optimal organoid formation and long-term growth necessitate the addition of fibroblast growth factor 10 and R-Spondin 1 to the medium. Further, we highlight the critical steps of tissue digestion and progenitor isolation and point to examples where brief cultivation in 2D on plastic is beneficial for subsequent organoid formation in the Basement Membrane Extract type 2 matrix. Overall, optimal biobanking requires systematic testing of all main conditions in parallel to identify an adequate growth environment for individual lines. The protocol also describes the handling procedure for efficient embedding, sectioning, and staining to obtain high-resolution images of organoids, which is required for comprehensive phenotyping.


Asunto(s)
Bancos de Muestras Biológicas , Neoplasias Ováricas , Femenino , Humanos , Neoplasias Ováricas/patología , Organoides/metabolismo
10.
J Reprod Immunol ; 163: 104240, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38492532

RESUMEN

OBJECTIVES: Gestational diabetes mellitus (GDM) is a growing health concern. Since members of the galectin-family are identified to play a role in the pathogenesis of GDM, we determined galectin-12 as an essential protein due to its influence in lipolysis and inflammation processes. This study investigates the expression of galectin-12 in the placentas of women with GDM. STUDY DESIGN: The study population includes 40 expectant women suffering from GDM and 40 healthy controls. The expression of galectin-12 in the syncytiotrophoblast (SCT) and the extra villous trophoblast (EVT) of the placenta was analyzed by immunohistological staining and double immunofluorescence. Immunoreactivity Score (IRS) was used for evaluation. RESULTS: The results demonstrate a significant overexpression of galectin-12 in the nucleus of the SCT and the EVT of placentas with GDM compared to the healthy control group. Additionally, double immunofluorescence visualizes corresponding results with an overexpression of galectin-12 in the extra villous trophoblast of GDM placentas representing maternal cells. CONCLUSION: This study identifies galectin-12 to be associated with the process of gestational diabetes mellitus. These findings are in correspondence with the involvement of galectin-12 in inflammatory processes. Maternal BMI and male sex seem to be confounder for the expression of galectin-12 in the nuclear syncytiotrophoblast, but not in other parts of the investigated placental areas. Further investigations are necessary to verify the correlation between gestational diabetes mellitus and the expression of galectin-12 in the placenta and to further elucidate its distinct role.


Asunto(s)
Diabetes Gestacional , Galectinas , Placenta , Trofoblastos , Adulto , Femenino , Humanos , Masculino , Embarazo , Diabetes Gestacional/inmunología , Diabetes Gestacional/metabolismo , Galectinas/metabolismo , Inflamación/inmunología , Inflamación/metabolismo , Placenta/metabolismo , Placenta/inmunología , Placenta/patología , Trofoblastos/metabolismo , Trofoblastos/patología , Trofoblastos/inmunología
11.
Int J Mol Sci ; 25(3)2024 Jan 26.
Artículo en Inglés | MEDLINE | ID: mdl-38338850

RESUMEN

Heat Shock Protein 90 (HSP90), a major molecular chaperone, plays a crucial role in cell function by folding and stabilizing proteins and maintaining proteostasis. This study aimed to elucidate the prognostic impact of HSP90 in cervical cancer. We analyzed HSP90 expression using immunohistochemistry in cervical cancer tissue microarrays from 250 patients. This study investigated correlations between HSP90 expression levels and key clinical outcomes, including overall survival (OS), progression-free survival (PFS), and FIGO classification. The statistical analyses employed included the Kruskal-Wallis-H test, log-rank (Mantel-Cox), and Cox regression. Our findings indicate that high nuclear HSP90 expression is associated with improved OS, while high cytoplasmic HSP90 expression correlates with better PFS and a lower FIGO classification in cervical squamous cell carcinoma patients. These results suggest that HSP90 could serve as a positive prognostic factor in patients diagnosed with cervical squamous cell carcinoma, underlining its potential as a biomarker for patient prognosis and as a target for therapeutic strategies.


Asunto(s)
Carcinoma de Células Escamosas , Neoplasias del Cuello Uterino , Humanos , Femenino , Carcinoma de Células Escamosas/patología , Pronóstico , Neoplasias del Cuello Uterino/patología , Proteínas HSP90 de Choque Térmico/metabolismo , Chaperonas Moleculares
12.
N Engl J Med ; 390(9): 819-829, 2024 Feb 29.
Artículo en Inglés | MEDLINE | ID: mdl-38416430

RESUMEN

BACKGROUND: Retrospective data suggest that the incidence of parametrial infiltration is low in patients with early-stage low-risk cervical cancer, which raises questions regarding the need for radical hysterectomy in these patients. However, data from large, randomized trials comparing outcomes of radical and simple hysterectomy are lacking. METHODS: We conducted a multicenter, randomized, noninferiority trial comparing radical hysterectomy with simple hysterectomy including lymph-node assessment in patients with low-risk cervical cancer (lesions of ≤2 cm with limited stromal invasion). The primary outcome was cancer recurrence in the pelvic area (pelvic recurrence) at 3 years. The prespecified noninferiority margin for the between-group difference in pelvic recurrence at 3 years was 4 percentage points. RESULTS: Among 700 patients who underwent randomization (350 in each group), the majority had tumors that were stage IB1 according to the 2009 International Federation of Gynecology and Obstetrics (FIGO) criteria (91.7%), that had squamous-cell histologic features (61.7%), and that were grade 1 or 2 (59.3%). With a median follow-up time of 4.5 years, the incidence of pelvic recurrence at 3 years was 2.17% in the radical hysterectomy group and 2.52% in the simple hysterectomy group (an absolute difference of 0.35 percentage points; 90% confidence interval, -1.62 to 2.32). Results were similar in a per-protocol analysis. The incidence of urinary incontinence was lower in the simple hysterectomy group than in the radical hysterectomy group within 4 weeks after surgery (2.4% vs. 5.5%; P = 0.048) and beyond 4 weeks (4.7% vs. 11.0%; P = 0.003). The incidence of urinary retention in the simple hysterectomy group was also lower than that in the radical hysterectomy group within 4 weeks after surgery (0.6% vs. 11.0%; P<0.001) and beyond 4 weeks (0.6% vs. 9.9%; P<0.001). CONCLUSIONS: In patients with low-risk cervical cancer, simple hysterectomy was not inferior to radical hysterectomy with respect to the 3-year incidence of pelvic recurrence and was associated with a lower risk of urinary incontinence or retention. (Funded by the Canadian Cancer Society and others; ClinicalTrials.gov number, NCT01658930.).


Asunto(s)
Carcinoma de Células Escamosas , Histerectomía , Neoplasias del Cuello Uterino , Femenino , Humanos , Canadá , Carcinoma de Células Escamosas/patología , Carcinoma de Células Escamosas/cirugía , Histerectomía/efectos adversos , Histerectomía/métodos , Ganglios Linfáticos/patología , Recurrencia Local de Neoplasia/epidemiología , Estadificación de Neoplasias , Pronóstico , Estudios Retrospectivos , Incontinencia Urinaria/etiología , Retención Urinaria/etiología , Neoplasias del Cuello Uterino/patología , Neoplasias del Cuello Uterino/cirugía
13.
Biomedicines ; 12(2)2024 Jan 30.
Artículo en Inglés | MEDLINE | ID: mdl-38397923

RESUMEN

Interleukin-8 (IL-8) is involved in the regulation of inflammatory processes and carcinogenesis. Single-nucleotide polymorphisms (SNPs) within the IL-8 gene have been shown to alter the risks of lung, gastric, or hepatocellular carcinomas. To date, only one study examined the role of IL-8 SNPs in ovarian cancer (OC), suggesting an association between two IL-8 SNPs and OC risk. In this study, we investigated four common IL-8 SNPs, rs4073 (-251 A>T), rs2227306 (+781 C>T), rs2227543 (+1633 C>T), and rs1126647 (+2767 A>T), using the restriction fragment length polymorphism (PCR-RFLP) technique. Our study included a cohort of 413 women of Central European descent, consisting of 200 OC patients and 213 healthy controls. The most common (73.5%) histological type was high-grade serous OC (HGSOC), whereas 28/200 (14%) patients had endometriosis-related (clear cell or endometrioid) OC subtypes (EROC). In postmenopausal women, three of the four investigated SNPs, rs4073 (-251 A>T), rs2227306 (+781 C>T), and rs2227543 (+1633 C>T), were associated with OC risk. Furthermore, we are the first to report a significant relationship between the T allele or TT genotype of SNP rs1126647 (+2767 A>T) and the EROC subtype (p = 0.02 in the co-dominant model). The TT homozygotes were found more than twice as often in EROC compared to other OC subtypes (39% vs. 19%, p = 0.015). None of the examined SNPs appeared to influence OC risk in premenopausal women, nor were they associated with the aggressive HGSOC subtype or the stage of disease at the initial diagnosis.

14.
Int J Mol Sci ; 25(4)2024 Feb 16.
Artículo en Inglés | MEDLINE | ID: mdl-38397025

RESUMEN

Advances in molecular tumor diagnostics have transformed cancer care. However, it remains unclear whether precision oncology has the same impact and transformative nature across all malignancies. We conducted a retrospective analysis of patients with human papillomavirus (HPV)-related gynecologic malignancies who underwent comprehensive molecular profiling and subsequent discussion at the interdisciplinary Molecular Tumor Board (MTB) of the University Hospital, LMU Munich, between 11/2017 and 06/2022. We identified a total cohort of 31 patients diagnosed with cervical (CC), vaginal or vulvar cancer. Twenty-two patients (fraction: 0.71) harbored at least one mutation. Fifteen patients (0.48) had an actionable mutation and fourteen (0.45) received a recommendation for a targeted treatment within the MTB. One CC patient received a biomarker-guided treatment recommended by the MTB and achieved stable disease on the mTOR inhibitor temsirolimus for eight months. Factors leading to non-adherence to MTB recommendations in other patient cases included informed patient refusal, rapid deterioration, stable disease, or use of alternative targeted but biomarker-agnostic treatments such as antibody-drug conjugates or checkpoint inhibitors. Despite a remarkable rate of actionable mutations in HPV-related gynecologic malignancies at our institution, immediate implementation of biomarker-guided targeted treatment recommendations remained low, and access to targeted treatment options after MTB discussion remained a major challenge.


Asunto(s)
Neoplasias de los Genitales Femeninos , Infecciones por Papillomavirus , Neoplasias de la Vulva , Humanos , Femenino , Neoplasias de la Vulva/genética , Neoplasias de la Vulva/terapia , Neoplasias de la Vulva/patología , Neoplasias de los Genitales Femeninos/tratamiento farmacológico , Neoplasias de los Genitales Femeninos/genética , Medicina de Precisión , Infecciones por Papillomavirus/complicaciones , Infecciones por Papillomavirus/genética , Estudios Retrospectivos , Biomarcadores
15.
Arch Gynecol Obstet ; 309(4): 1509-1514, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-37737883

RESUMEN

PURPOSE: In the following work, we investigated the effect of matcha green tea extract (MTE) on MCF-7 breast cancer cell viability and estrogen receptor-beta expression (ERß). METHODS: MCF-7 cells were stimulated with MTE at concentrations of 5 and 10 µg/ml. Cell viability was assessed using a water-soluble tetrazolium assay (WST-1 assay) after an incubation time of 72 h. ERß was quantified at gene level by real-time polymerase chain reaction (PCR). A western blot (WB) was carried out for the qualitative assessment of the expression behavior of on a protein level. RESULTS: The WST-1 test showed a significant inhibition of viability in MFC-7 cells after 72 h at 10 µg/ml. The WB demonstrated a significant quantitative decrease of ERß at protein level with MTE concentrations of 10 µg/ml. In contrast, the PCR did not result in significant downregulation of ERß. CONCLUSION: MTE decreases the cell viability of MCF-7 cells and furthermore leads to a decrease of ERß at protein level.


Asunto(s)
Neoplasias de la Mama , Humanos , Femenino , Neoplasias de la Mama/genética , Células MCF-7 , Receptor beta de Estrógeno/genética , Supervivencia Celular , Antioxidantes/farmacología , , Receptor alfa de Estrógeno , Línea Celular Tumoral , Proliferación Celular
16.
Arch Gynecol Obstet ; 309(5): 1925-1933, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-37231277

RESUMEN

PURPOSE: After living with the COVID-19 pandemic for more than 2 years, the impact of lockdown measures on preterm birth rates is inconsistent according to data from different countries. In this study, rates of preterm-born infants during the time of COVID-19-related lockdowns were analyzed in a tertiary perinatal center at Munich University, Germany. METHODS: We analyzed the number of preterm births, infants, and stillbirths before 37 weeks of gestation during the German COVID-19 lockdown period compared to the same time periods in the years 2018 and 2019 combined. Additionally, we expanded the analysis to Pre- and Post-Lockdown Periods in 2020 compared to the respective control periods in the years 2018 and 2019. RESULTS: Our database shows a reduction in the rate of preterm infants during the COVID-19 lockdown period (18.6%) compared to the combined control periods in 2018 and 2019 (23.2%, p = 0.027). This was mainly based on a reduced rate of preterm multiples during the lockdown period (12.8% vs. 28.9%, p = 0.003) followed by a reversed effect showing a threefold rise in multiple births after the lockdown. In singletons, the rate of preterm births was not reduced during the lockdown. The rate of stillbirths was not affected by the lockdown measures as compared to the control period (0.9% vs. 0.7%, p = 0.750). CONCLUSION: During the COVID-19 pandemic lockdown period, we found a reduced rate of preterm-born infants compared to a combined control period in the years 2018 and 2019 in our large tertiary University Center in Germany. Due to the predominant reduction in preterm multiples, we postulate that less physical activity might have led to the protective effect by lockdown measures.


Asunto(s)
COVID-19 , Nacimiento Prematuro , Embarazo , Lactante , Femenino , Recién Nacido , Humanos , Recien Nacido Prematuro , Nacimiento Prematuro/epidemiología , COVID-19/epidemiología , COVID-19/prevención & control , Pandemias/prevención & control , Universidades , Control de Enfermedades Transmisibles , Mortinato/epidemiología
17.
Bull Cancer ; 111(3): 277-284, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-36967330

RESUMEN

An international joint statement about the use of hyperthermic intraperitoneal chemotherapy (HIPEC) in ovarian cancer was published in 2016, warning about the uncritical use of HIPEC outside controlled studies. This statement has now been updated after the most recent literature was reviewed by the participating study groups and societies. HIPEC became a treatment option in patients with advanced colon cancer after positive results of a randomized trial comparing surgery and HIPEC versus palliative treatment alone. Although this trial did not compare the added value of HIPEC to surgery alone, HIPEC for the treatment of peritoneal metastases was in the subsequent years generalized to many other cancer types associated with peritoneal carcinomatosis including epithelial ovarian cancer (EOC). In the meantime, new evidence from prospective randomized trials specifically for EOC-patients emerged, with however contradicting results and several quality aspects that made the interpretation of their findings critical. Moreover, three additional trials in colorectal cancer failed to confirm the previously presumed survival benefit through the implementation of HIPEC in peritoneally disseminated colorectal cancers. Based on a still unclear and inconsistent landscape, the authors conclude that HIPEC should remain within the remit of clinical trials for EOC-patients. Available evidence is not yet sufficient to justify its broad endorsement into the routine clinical practice.


Asunto(s)
Hipertermia Inducida , Neoplasias Ováricas , Humanos , Femenino , Carcinoma Epitelial de Ovario/patología , Quimioterapia Intraperitoneal Hipertérmica , Estudios Prospectivos , Austria , Suiza , Hipertermia Inducida/métodos , Neoplasias Ováricas/tratamiento farmacológico , Neoplasias Ováricas/patología , Terapia Combinada , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico
18.
Lab Invest ; 104(4): 100321, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38154497

RESUMEN

With more novel drugs being approved for the treatment of ovarian carcinoma, the question remains to what extent patients benefit from antiangiogenic treatment with bevacizumab, either in combination with poly-(ADP-ribose) polymerase inhibitors or as single-agent maintenance. As fibroblast growth factor receptors and their ligands (FGFRs/FGFs) are key players in angiogenic signaling and have been linked to resistance to several drugs, we investigated the prognostic or predictive potential of FGFs/FGFRs signaling in the context of bevacizumab treatment within the prospective phase III AGO-OVAR11/ICON-7 study. FGFR1, FGFR2, FGFR3, FGFR4, FGF1, and FGF19 gene expressions were determined in 380 ovarian carcinoma tumor samples collected from German centers in the multicenter phase III AGO-OVAR11 trial/ICON-7 trial. All patients received carboplatin and paclitaxel, administered every 3 weeks for 6 cycles, and were randomized to bevacizumab. Expressions of FGFR1, FGFR2, FGF1, and FGF19 were associated with progression-free survival in both uni- and multivariate (FGFR1: HR, 1.6, P < .001; FGFR2: HR, 1.6, P = .002; FGF1: HR, 2.3, P < .001; and FGF19: HR, 0.7; P = .007) analysis. A signature built by FGFR1, FGFR4, and FGF19 defined a subgroup (n = 62) of patients that derived the greatest bevacizumab-associated improvement of progression-free survival (HR, 0.3; P = .004). In this exploratory analysis of a prospective randomized phase III trial, we provide evidence that the expression of FGFRs/FGFs might have independent prognostic values. An FGFR/FGF-based gene signature identified in our study appears to predict long-term benefit from bevacizumab. This observation is hypothesis-generating and requires validation on independent cohorts.


Asunto(s)
Carcinoma , Neoplasias Ováricas , Humanos , Femenino , Bevacizumab/farmacología , Bevacizumab/uso terapéutico , Factor 1 de Crecimiento de Fibroblastos , Estudios Prospectivos , Factores de Crecimiento de Fibroblastos , Neoplasias Ováricas/tratamiento farmacológico , Neoplasias Ováricas/genética
19.
Curr Issues Mol Biol ; 45(11): 8840-8851, 2023 Nov 02.
Artículo en Inglés | MEDLINE | ID: mdl-37998731

RESUMEN

Galectins are known to play an important role in immunoregulatory processes and autoimmune diseases. Galectin-10 is a cytoplasmic protein of human eosinophils and is involved in various eosinophilic diseases. Since increased galectin expression is already detected in the placentas of mothers with gestational diabetes mellitus (GDM), this study focuses on the specific role of galectin-10 and hints at consequences for the diagnosis and therapeutic options of GDM. It is hypothesized that the difference in galectin-10 expression will raise the pathophysiological understanding of gestational diabetes. The study population consists of 80 women: 40 healthy mothers and 40 women suffering from gestational diabetes mellitus. The expression of galectin-10 was analyzed in the syncytiotrophoblast (SCT) and the decidua of the placenta via immunohistochemistry and immunofluorescence double staining. The immunoreactivity score (IRS) was used for evaluation. The results in this study were significant for an overexpression of galectin-10 in GDM placentas compared with the control group. The syncytiotrophoblast showed overexpression in the nucleus and the cytoplasm, whereas expression of galectin-10 in the decidua was significant in the cytoplasm only. This study identified the expression changes in galectin-10 in placental tissue between healthy and GDM mothers and intensified the understanding of gestational diabetes. Assuming that gestational diabetes mellitus is involved in inflammatory processes, galectin-10 might play a role in the development and maintenance of GDM. Further investigation is required to strengthen these findings.

20.
Geburtshilfe Frauenheilkd ; 83(10): 1199-1204, 2023 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-37808259

RESUMEN

The presentation of the results of the prospective randomized international multicenter study AGO-OP.8 - CCTG CX.5 - SHAPE at the annual conference of the American Society of Clinical Oncology (ASCO) in 2023 will affect the surgical treatment of early-stage cervical cancer. In the SHAPE study, simple total hysterectomy (experimental arm) was found to be non-inferior to radical hysterectomy (standard arm) to treat patients with early-stage cervical cancer (FIGO stages [2018] IA2 - IB1 ≤ 2 cm with an infiltration depth of < 1 cm); after 3 years' follow-up the pelvic recurrence rate was 2.52% (experimental arm) compared to 2.17% (standard arm) with no statistically significant difference with regards to recurrence-free survival and overall survival rates. After weighing up the results of the SHAPE study published at the conference, the Uterus Organ Commission of AGO is of the opinion that, in addition to the use of radical hysterectomy to treat patients with invasive cervical cancer which is FIGO stage IA2 - IB1 ≤ 2 cm with an infiltration depth of < 1 cm, simple total hysterectomy may also be considered for primary surgical therapy on a case-by-case basis after suitable explanation of the associated risks. It will be necessary to wait for the data of the full publication before discussing whether this approach should be included in official guidelines and defining it as a new therapy standard.

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