ABSTRACT
The development of new biomarkers for the diagnosis and prognosis of ovarian cancer may provide an opportunity for new therapies. In this study, we aimed to compare cytokines (interleukin [IL]-2, IL-5, IL-6, IL-8, IL-10 and tumour necrosis factor [TNF]-α) and nitric oxide (NO) metabolite levels in non-neoplastic tumours, benign primary ovarian tumours and malignant primary ovarian neoplasms. The secondary aim was to relate cytokine and intracystic NO metabolite levels to clinical, laboratory and pathologic characteristics for patients with primary ovarian malignancies. We evaluated 110 patients with adnexal masses. Cytokine concentrations were quantified by enzyme-linked immunosorbent assay and nitrate concentrations by enzymatic reduction of nitrite by nitrate reductase. Patients with malignant neoplasms had higher IL-6, IL-8 and NO levels compared to patients with benign neoplasms. Histologic grade 1 tumours were associated with elevated IL-2 levels, whereas anaemia was associated with elevated IL-6 levels. On average, those patients with elevated IL-8 levels also had a neutrophil/lymphocyte ratio (NLR) greater than 2.6 and less than 36 months of disease-free survival (DFS). Patients with normal CA 19-9 levels had elevated IL-10 levels. TNF-α was elevated in patients with two carcinogenesis and those with a platelet/lymphocyte ratio (PLR) less than 300. NO levels were higher in patients with an NLR less than 2.6 and CA 19-9 greater than 35 U/ml. Elevated intracystic cytokine levels, especially IL-6 and IL-8, are associated with worse prognosis in ovarian cancer.
Subject(s)
Biomarkers, Tumor/metabolism , Interleukin-6/metabolism , Interleukin-8/metabolism , Nitric Oxide/metabolism , Ovarian Cysts/immunology , Ovarian Neoplasms/immunology , Ovary/metabolism , Adolescent , Adult , Aged , Aged, 80 and over , Carcinogenesis , Child , Female , Humans , Middle Aged , Ovarian Cysts/diagnosis , Ovarian Cysts/mortality , Ovarian Neoplasms/diagnosis , Ovarian Neoplasms/mortality , Ovary/pathology , Survival Analysis , Young AdultABSTRACT
The objective of this study was to review studies that have investigated the immune response in the presence of a malignant ovarian neoplasia. A review of the literature was performed to identify studies of malignant ovarian neoplasia, particularly studies that addressed the potential for cytokines, nitric oxide, and lymphocytes to mediate an immune response against ovarian cancer. Certain subsets of tumor-infiltrating leukocytes and/or tumor-associated leukocytes have been found to correlate with an improved disease prognosis, while other lymphocyte subsets (such as CD3+/CD4+/CD25+ T cells) have been associated with a poor prognosis. These data suggest that cytokines can have a protective role, or can promote an immune system defense against a cancer. In particular, certain cytokines (e.g., IL 8, IL 10) represent attractive candidates for the development of new diagnostic, prognostic, and therapeutic strategies for the treatment of ovarian cancer.
Subject(s)
Ovarian Neoplasms/immunology , Antigens, CD/physiology , Cytokines/physiology , Female , Humans , Nitric Oxide/physiology , Ovarian Neoplasms/therapy , T-Lymphocytes/immunologyABSTRACT
Avaliaram-se 12 feridas granulomatosas em membros torácicos e pélvicos de equinos da raça Pantaneira. Foi realizado diagnóstico sugestivo para pitiose cutânea de acordo com as características clínicas das feridas e avaliação histopatológica, com as colorações de hematoxilina-eosina (HE) e Prata Metenamina de Grocott (GMS). A confirmação do diagnóstico foi realizada por exame imuno-histoquímico, método streptavidina-biotina marcada (LSAB). O diagnóstico histopatológico foi de dermatite piogranulomatosa, focal extensa, acentuada, associada a "pseudo-hifas" características de Pythium insidiosum (pitiose cutânea), nos 12 animais desta pesquisa. O diagnóstico de pitiose foi confirmado em 100% dos casos pela imunomarcação positiva (LSAB) para Pythium insidiosum, caracterizada pela visualização de estruturas ramificadas e septadas, sendo observados 100% de paridade entre as técnicas. É possível concluir que a caracterização clínica das feridas granulomatosas com aspecto de pitiose em equinos associada ao resultado histopatológico sugestivo para pitiose equina constituem métodos de diagnóstico confiáveis, os quais podem ser confirmados pela técnica de imuno-histoquímica.
Twelve granulomatous lesions in the thoracic and pelvic limbs of horses from pantaneira breed were evaluated. It was performed suggestive diagnostic of cutaneous pythiosis according to the clinic characteristics of the lesions and histopathological exams using hematoxylin and eosin (HE) and Grocott's methenamine silver (GMS) stains. The confirmation of the diagnoses was performed by the labelled streptavidin biotin (LSAB) method (immunohistochemistry). Extensive focal pyogranulomatous dermatitis associated with "pseudo hyphae" characteristic of Pythium insidiosum (subcutaneous pythiosis) was the histopathological diagnosis for all 12 horses used in this study. It was confirmed in 100% of the cases by the positive result to Pythium insidiosum in the immunohistochemistry exam, characterized by the visualization of branched and septated structures. It was observed 100% of parity between the techniques. We can conclude that clinical characterization of the granulomatous lesions with pythiosis aspects in horses associated with histopathology suggestive of equine pythiosis constitute a reliable method of diagnostic that can be confirmed by immunohistochemistry technique.
