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1.
J Cancer Res Clin Oncol ; 147(5): 1421-1430, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-33660008

RESUMO

PURPOSE: Sphingosine-kinase-1 (SPHK1) is a key enzyme of sphingolipid metabolism which is involved in ovarian cancer pathogenesis, progression and mechanisms of drug resistance. It is overexpressed in a variety of cancer subtypes. We investigated SPHK1 expression as a prognostic factor in epithelial ovarian cancer patients. METHODS: Expression analysis of SPHK1 was performed on formalin-fixed paraffin-embedded tissue from 1005 ovarian cancer patients with different histological subtypes using immunohistochemistry. Staining intensity of positive tumor cells was assessed semi-quantitatively, and results were correlated with clinicopathological characteristics and survival. RESULTS: In our ovarian cancer collective, high levels of SPHK1 expression correlated significantly with complete surgical tumor resection (p = 0.002) and lower FIGO stage (p = 0.04). Progression-free and overall survival were further significantly longer in patients with high-grade serous ovarian cancer and overexpression of SPHK1 (p = 0.002 and p = 0.006, respectively). CONCLUSION: Our data identify high levels of SPHK1 expression as a potential favorable prognostic marker in ovarian cancer patients.


Assuntos
Carcinoma Epitelial do Ovário/metabolismo , Carcinoma Epitelial do Ovário/mortalidade , Fosfotransferases (Aceptor do Grupo Álcool)/metabolismo , Adulto , Idoso , Idoso de 80 Anos ou mais , Biomarcadores Tumorais/metabolismo , Feminino , Humanos , Imuno-Histoquímica/métodos , Pessoa de Meia-Idade , Prognóstico , Intervalo Livre de Progressão , Adulto Jovem
2.
Geburtshilfe Frauenheilkd ; 74(2): 139-145, 2014 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-24741124

RESUMO

Laparoscopic myomectomy is regarded as the gold standard for women with symptomatic fibroids who wish to become pregnant. High-intensity focused ultrasound (HIFU or MRgFUS) ablation of uterine fibroids is also being discussed as a non-surgical, minimally invasive, therapeutic option. This review examines the available data on the impact of HIFU/MRgFUS on fertility and pregnancy, focusing particularly on potential direct side-effects of this type of intervention on ovaries, fallopian tubes and uterus and potential late effects on pregnancy and birth, based on the current literature. All pregnancies after HIFU/MRgFUS published to date (around 100 cases) were evaluated. The published case series suggest that HIFU/MRgFUS ablation has no impact on the rate of miscarriages or other obstetrical outcome parameters. Because no prospective studies exist which permit firm conclusions to be drawn on the impact of HIFU/MRgFUS on fertility and pregnancy outcome in women with symptomatic fibroids, this approach is currently only recommended for women with suspected fertility problems due to uterine fibroids who either decline surgery or who have an unacceptably high surgical risk.

3.
Anticancer Res ; 32(1): 351-7, 2012 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-22213326

RESUMO

BACKGROUND: Vitamin D and its active form calcitriol have multiple effects in cancer cells, such as anti-proliferative effects, induction of apoptosis and cell cycle arrest. There is a link between vitamin D metabolism and inflammatory processes, which should be considered in cancer therapy. An association between these two types of metabolism is also observed in breast and ovarian cancer. These inflammatory processes are based on an increase of cyclooxygenase-2 (COX-2) activity. The current study aimed to evaluate the expression of prostaglandin-metabolising enzymes COX-2 and 15-hydroxyprostaglandin-dehydrogenase (15-PGDH) along with the vitamin D receptor (VDR) in benign and malignant breast and ovarian tissues. PATIENTS AND METHODS: VDR, COX-2, 15-PGDH and prostanoid receptor E2/E4 expression were measured in tissues by western blot analysis. Additionally, plasma 25(OH)(2)D(3) and PGE(2) levels were measured in healthy patients and cancer patients. RESULTS: We detected an elevated COX-2 and inversely a lowered VDR expression in cancer patients compared to healthy women. Breast cancer patients diagnosed during wintertime had a significantly lower serum level of 25(OH)(2)D(3); PGE(2) serum levels were higher in both types of cancer. CONCLUSION: These results support the idea of a link between prostaglandin and vitamin D metabolism in regards to their influences on breast and ovarian cancer.


Assuntos
Neoplasias da Mama/metabolismo , Calcitriol/sangue , Ciclo-Oxigenase 2/metabolismo , Dinoprostona/sangue , Hidroxiprostaglandina Desidrogenases/metabolismo , Neoplasias Ovarianas/metabolismo , Receptores de Calcitriol/metabolismo , Receptores de Prostaglandina E Subtipo EP2/metabolismo , Receptores de Prostaglandina E Subtipo EP4/metabolismo , Adulto , Idoso , Western Blotting , Estudos de Casos e Controles , Feminino , Humanos , Pessoa de Meia-Idade
4.
Eur J Gynaecol Oncol ; 32(3): 280-2, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21797116

RESUMO

During recent years a continuous reduction of mortality from breast cancer has taken place in the Western countries. We wanted to verify whether the actual therapy for our own cases deviates from our recommendations, although the surgeon, radiotherapist and gynaecological oncologist are on the same premises. We sent out questionnaires to all newly diagnosed breast cancer patients in the last seven years regarding their adjuvant therapy. Comparing these answers to our own recommendation showed a very good compliance regarding chemotherapy and radiation therapy. Adjuvant endocrine therapy showed a very poor compliance with an adherence of 77%. Overall we can conclude that endocrine therapy causes many side-effects that seem to burden the patients. In combination with the duration of the therapy this causes a severe reduction in compliance and length of the therapy.


Assuntos
Neoplasias da Mama/terapia , Terapia Combinada/psicologia , Cooperação do Paciente/psicologia , Adulto , Neoplasias da Mama/psicologia , Feminino , Humanos , Inquéritos e Questionários
5.
Z Geburtshilfe Neonatol ; 214(4): 167-9, 2010 Aug.
Artigo em Alemão | MEDLINE | ID: mdl-20806152

RESUMO

Rhabdomyosarcoma is a common malignant soft-tissue tumour in children, accounting for 6-7% of all malignant tumours in childhood. Congenital neoplasms are very rare in childhood and represent 2.5% of all paediatric tumours; the intrauterine or congenital diagnosis of rhabdomyosarcomas is extremely seldom. The most frequent locations of rhabdomyosarcomas are the head and neck regions. There are a number of ultrasonographic differential diagnoses. In cases of foetal rhabdomyosarcomas in utero, not only distant metastases but also the possibility of placental infiltration and thus of hypothetical distant metastases in the mother must be taken into consideration because of their metastatic potential. Only very few cases of transplacental penetration of tumour cells and especially of foeto-maternal metastatic invasion, in contrast to materno-foetal tumour cell transfer in the case of maternal cancer disease, have been reported in the literature. We report on a foetal rhabdomyosarcoma of the head and neck area with massive cardiac and placental infiltration associated with intrauterine foetal death in the second trimester. Sonographic features and necropsy findings are described and the differential diagnosis is discussed. Furthermore, diagnostic approaches to rule out a pattern of transplacental metastases are presented.


Assuntos
Morte Fetal , Neoplasias de Cabeça e Pescoço/diagnóstico , Neoplasias Cardíacas/diagnóstico , Diagnóstico Pré-Natal/métodos , Rabdomiossarcoma Embrionário/diagnóstico , Diagnóstico Diferencial , Feminino , Humanos , Invasividade Neoplásica , Gravidez
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