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  • Andreasson, Håkan, et al. (författare)
  • Histopathological Classification of Pseudomyxoma Peritonei and the Prognostic Importance of PINCH Protein
  • 2012
  • Ingår i: Anticancer Research. - 0250-7005 .- 1791-7530. ; 32:4, s. 1443-1448
  • Tidskriftsartikel (refereegranskat)abstract
    • Aim:The aims of this study were i) to assess a new and more detailed histopathological classification and to analyze concordance between pathologists in the histopathological classification of pseudomyxoma peritonei (PMP); ii) to analyze the expression in the stroma of the particularly interesting new cysteine-histidine (PINCH) protein and its prognostic importance in PMP.Materials and Methods:Surgical specimens from 81 patients, classified according to the Ronnett et al histopathological classification were compared to a new system with four groups ranging from indolent to aggressive growth patterns. PINCH protein expression was analyzed and was related to clinical variables.Results:The new four-group classification provided better prognostic information than the classification according to Ronnett et al. (p=0.04). Expression of the PINCH protein in the stroma was found in 83% of the cases and was associated with high tumor burden (p=0.002) and a poor prognosis (p=0.04).Conclusion:The proposed new PMP classification system may provide additional prognostic information. PINCH protein is expressed in PMP and has prognostic information.
  • Backlin, Carin, et al. (författare)
  • Immunohistochemical expression of insulin-like growth factor 1 and its receptor in normal and neoplastic human adrenal cortex
  • 1995
  • Ingår i: Anticancer Research. - 0250-7005 .- 1791-7530. ; 15:6B, s. 2453-2459
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND:Insulin-like growth factor 1 (IGF-1) may influence cellular growth, differentiation and secretion.MATERIAL AND METHODS:Cryosectioned normal human adrenal glands (n = 6), cortical adenoma (n = 21), and carcinoma (n = 17) were stained immunohistochemically for IGF-1 and its receptor, and human adrenocortical cancer cells expressing the receptor were analysed for influences on proliferation.RESULTS:Normal cortical parenchyma generally displayed faint IGF-1 reactivity and intracellular receptor staining. Similar labelling encompassed the adenomas, but only 6 of them were receptor reactive. IGF-1 expression was conspicuous in 11 carcinomas, and 6 of them displayed cell surface receptor reactivity. All aldosterone producing lesions were receptor antibody unreactive. Recombinant IGF-1 dose-dependently stimulated the cell proliferation, and this effect was reversed by the receptor antibody.CONCLUSION:IGF-1 may interact with function and proliferation of the human adrenal cortex with particular reference to cortical carcinomas lacking discernible aldosterone excess.
  • Backman, Samuel, et al. (författare)
  • Detection of Somatic Mutations in Gastroenteropancreatic Neuroendocrine Tumors Using Targeted Deep Sequencing
  • 2017
  • Ingår i: Anticancer Research. - 0250-7005 .- 1791-7530. ; 37:2, s. 705-712
  • Tidskriftsartikel (refereegranskat)abstract
    • Mutations affecting the mechanistic target of rapamycin (MTOR) signalling pathway are frequent in human cancer and have been identified in up to 15% of pancreatic neuroendocrine tumours (NETs). Grade A evidence supports the efficacy of MTOR inhibition with everolimus in pancreatic NETs. Although a significant proportion of patients experience disease stabilization, only a minority will show objective tumour responses. It has been proposed that genomic mutations resulting in activation of MTOR signalling could be used to predict sensitivity to everolimus.PATIENTS AND METHODS: Patients with NETs that underwent treatment with everolimus at our Institution were identified and those with available tumour tissue were selected for further analysis. Targeted next-generation sequencing (NGS) was used to re-sequence 22 genes that were selected on the basis of documented involvement in the MTOR signalling pathway or in the tumourigenesis of gastroenterpancreatic NETs. Radiological responses were documented using Response Evaluation Criteria in Solid Tumours.RESULTS: Six patients were identified, one had a partial response and four had stable disease. Sequencing of tumour tissue resulted in a median sequence depth of 667.1 (range=404-1301) with 1-fold coverage of 95.9-96.5% and 10-fold coverage of 87.6-92.2%. A total of 494 genetic variants were discovered, four of which were identified as pathogenic. All pathogenic variants were validated using Sanger sequencing and were found exclusively in menin 1 (MEN1) and death domain associated protein (DAXX) genes. No mutations in the MTOR pathway-related genes were observed.CONCLUSION: Targeted NGS is a feasible method with high diagnostic yield for genetic characterization of pancreatic NETs. A potential association between mutations in NETs and response to everolimus should be investigated by future studies.
  • Blomberg, Carl, et al. (författare)
  • Randomized Trials of Systemic Medically-treated Malignant Mesothelioma : A Systematic Review
  • 2015
  • Ingår i: Anticancer Research. - 0250-7005 .- 1791-7530. ; 35:5, s. 2493-2501
  • Forskningsöversikt (övrigt vetenskapligt)abstract
    • Malignant pleural mesothelioma (MPM) is a rare but aggressive malignancy mainly localized to the pleura. Malignant mesothelioma grows highly invasive into surrounding tissue and has a low tendency to metastasize. The median overall survival (OS) of locally advanced or metastatic disease without treatment is 4-13 months but, during recent years, improvement in survival has been achieved since treatment for patients with mesothelioma has improved with better palliative care, systemic medical treatment, surgery and improved diagnostics methods. The present review aims at describing available data from randomized trials considering systemic medical treatment for this patient category.
  • Bolander, Åsa, et al. (författare)
  • The Role of Circulating Angiogenic Factors in Patients Operated on for Localized Malignant Melanoma
  • 2007
  • Ingår i: Anticancer Research. - 0250-7005 .- 1791-7530. ; 27:5A, s. 3211-3217
  • Tidskriftsartikel (refereegranskat)abstract
    • Malignant melanoma is a disease capable of rapid progression and rapidly developing metastases. Angiogenesis is a key event signalling tumour progression and elevated levels of angiogenic markers may indicate metastatic disease. No previously published work has, so far, examined plasma vascular endothelial growth factor (VEGF) and its receptor, VEGFR-1, in melanoma. This study investigated circulating levels of the angiogenic factors, VEGF-A and -D, their receptors 1-3 and hepatocyte growth factor (HGF)/scatter factor, in patients shortly after primary surgery for localized malignant melanoma. Elevated circulating levels of VEGF and its receptors, and of HGF, were found postoperatively, possibly derived from the reactive stroma adjacent to the tumours. Using univariate analysis, a correlation between levels of VEGFR-1 and relapse was found, but a correlation between the investigated angiogenic factors and survival could not be established. The results of the present study indicate that production of these angiogenic factors may be due to sources other than malignant melanoma cells.
  • Bäckman, Ulrika, et al. (författare)
  • The Bisphosphonate Zoledronic Acid Reduces Experimental Neuroblastoma Growth by Interference with Tumor Angiogenesis
  • 2008
  • Ingår i: Anticancer Research. - 0250-7005 .- 1791-7530. ; 28:3A, s. 1551-1557
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Zoledronic acid is a new member of the bisphosphonate (BP) class of compounds, a family of closely related synthetic molecules originally derived from the naturally occurring pyrophosphate. These compounds that are potent inhibitors of bone resorption, have been shown to reduce the growth of several cancer cell lines in vitro, and can act as inhibitors of angiogenesis. The angiogenesis inhibitor TNP-470, a synthetic analogue of the fungal antibiotic fumagillin, has been shown to inhibit the growth of multiple tumors in vivo, and is currently in Phase H clinical trials for cancer. Materials and Methods: The effects of daily subcutaneous (s.c.) administration of zoledronic acid (0.1 mg/kg) were compared with those of TNP-470 (15 mg/kg/day and 30 mg/kg every other day, s.c.) in a nude mouse xenograft model for the childhood cancer, neuroblastoma (NB). Results: Zoledronic acid reduced the tumor growth by 33% whereas TNP-470 was less effective and reduced the tumor growth by 26% and 11% for animals treated with 15 mg/kg/day and 30 mg/kg every other day, respectively. Analysis of angiogenesis showed a significant reduction of the number of vessels per grid and in vessel length in all the treatment groups. Conclusion: Zoledronic acid shows tumoristatic and angiostatic properties that might be beneficial in the treatment of solid tumors such as neuroblastoma.
  • Carlsson, Maria, 1958-, et al. (författare)
  • Treatment modality affects long-term quality of life in gynaecological cancer.
  • 2000
  • Ingår i: Anticancer Research. - The International Institute of Anticancer Research. - 0250-7005 .- 1791-7530. ; 20:1B, s. 563-568
  • Tidskriftsartikel (refereegranskat)abstract
    • In order to survey the side effects after cancer treatment, quality of life data were collected from females in clinical remission.MATERIALS AND METHODSThe study was cross-sectional; every patient that visited the outpatient clinic during a period of three months was asked to anonymously complete the EORTC QLQ-C30 questionnaire and five additional specific questions related to gynaecological cancer.RESULTSIn total, 235 patients (90%) returned the questionnaire. In general, both the levels of functioning and symptomatology were time-dependent. Patients with short treatment-free intervals reported more problems than the others. When using treatment modality as an independent variable in the statistical calculations, a treatment-related effect on functioning and symptomatology was demonstrated (p < 0.05 to p < 0.001). Patients previously treated with chemotherapy had poorer role- and cognitive functioning and more problems with fatigue, nausea, vomiting, dyspnoea, constipation and financial problems, compared with those not treated with chemotherapy (p < 0.05 to p < 0.01). Those patients who had been treated with external radiotherapy and/or brachytherapy had significantly more problems with flatulence and diarrhoea (p < 0.05 to p < 0.001). In conclusion, patients who underwent treatment for gynaecological cancer reported long-term side effects also many years after finishing treatment. The problems where related to treatment modality which should be considered, especially when planning adjuvant treatment.
  • Edgren, M, et al. (författare)
  • Biological characteristics of adrenocortical carcinoma : A study of p53, IGF, EGF-r, Ki-67 and PCNA in 17 adrenocortical carcinomas
  • 1997
  • Ingår i: Anticancer Research. - 0250-7005 .- 1791-7530. ; 17:2B, s. 1303-1310
  • Tidskriftsartikel (refereegranskat)abstract
    • Adrenocortical carcinoma (ACC) is a rare neoplasm with a poor prognosis. Prognostic factors are needed to identify patients who should be treated aggressively and those for which a less aggressive approach is warranted. As a result of advances within the field of immunohistochemistry, investigations of Ki-67, PCNA, IGF, EGF-r and p53 were performed in 17 ACC. The aim of this study was to clarify the role of Ki-67, PCNA, EGF-r, IGF and p53 in correlation to tumour behaviour and outcome. This retrospective study includes 16 patients, 10 women and 6 men, with a median age of 46 years. Nine tumours were hormonally functioning and 7 were non-functioning. The results obtained revealed that all tumours expressed PCNA and Ki-67 with median values of 59% and 14%, respectively, while p53 was negative in 88%, IGF negative in 82% and EGF-r positive in 94% of the tumours. No correlation was found between p53, IGF, EGF-r and survival rate. There was no interdependence between PCNA and Ki-67, or between PCNA, Ki-67 and the survival rate.
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