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Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti

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https://www.readbyqxmd.com/read/28612620/sampus-meltump-and-thimump-diagnostic-categories-characterized-by-uncertain-biological-behavior
#1
L Roncati, F Piscioli, T Pusiol
In the dermatopathological practice, there is a group of atypical melanocytic lesions with borderline histological features between benign simulants and malignant melanoma (MM), due to conflicting diagnostic criteria and inter-observer disagreement. In these cases, the dermatopathologist is authorized to seek consult with an established expert in the field, but even the most experienced specialist may not be sure about the correct diagnosis and the subsequent biological behavior. There is general consensus among qualified dermatopathologists that can be helpful to insert these ambiguous cases into two diagnostic categories: SAMPUS (Superficial Atypical Melanocytic Proliferations of Unknown Significance) and MELTUMP (MELanocytic Tumors of Uncertain Malignant Potential)...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/28612619/-isolated-perfusion-of-the-upper-extremity-with-tnf-%C3%AE-double-venous-cannulation
#2
M Špaček, P Mitáš, M Vočka, L Lacina, G Hodková, R Špunda, O Kodet, I Krajsová, L Petruželka, J Trnka, J Kubinyi, Z Matějovský, L Lambert, J Lindner
BACKGROUND: The authors present a technical variation of the standard cannulation for cardiopulmonary bypass perfusion during hyperthermic isolated limb perfusion (ILP) procedures in selected patients with unresectable soft tissue sarcoma or malignant melanoma. PATIENTS: Of 55 ILP procedures performed at our institution since the procedure was established in 2009, nine were performed at the upper extremity. Standard single venous cannulation was used in five cases, and extended, double venous cannulation in the last four...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/28612618/durable-complete-response-of-colorectal-cancer-metastasis-after-biochemotherapy
#3
M Honzirkova, L Lipská, P Kohout, J Ferda, O Bělohlávek, T Büchler
BACKGROUND: Resection of the metastatic site is indicated but not always possible in patients with metastatic colorectal cancer (mCRC) who achieve a partial or complete response (CR) to induction systemic treatment. CR after systemic treatment alone is uncommon, and even patients with radiologic CR after induction chemotherapy harbour persistent macroscopic or microscopic residual disease in more than 80% of cases. Occasionally, some metastatic lesions disappear radiologically but others persist after induction systemic treatment...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/28612617/-breast-cancer-in-young-women-correlation-of-clinical-histomorphological-and-molecular-genetic-features-of-breast-carcinoma-in-women-younger-than-35-years-of-age
#4
A Metelková, A Skálová, J Fínek
BACKGROUND: Worldwide, breast cancer is the leading type of malignancy in women. For premenopausal women, the disease brings much higher risk as it is usually more aggressive with worse prognosis. PATIENTS AND METHODS: In this retrospective study, 92 women treated at the Department of Oncology and Radiotherapy in Pilsen were selected from a basic cohort of 356 women under 35 years of age with breast cancer who were diagnosed between 2006 and 2015. The control group comprised 100 postmenopausal women over 65 years of age who were treated for invasive breast cancer...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/28612616/basal-cell-carcinoma-multiplicity-a-retrospective-analysis-of-899-biopsy-proven-patients-from-a-single-institute
#5
V Bartos, M Kullová
BACKGROUND: An interesting clinical feature of basal cell carcinoma (BCC) of the skin is a marked interpatient variation in tumor number, lesion accrual and anatomic distribution. We analyzed a proportion of patients with multiple BCCs in the cohort of pathology report-confirmed cases of BCC and investigated clinicopathological differences between individuals suffering from multiple tumor lesions and patients with a single tumor. MATERIAL AND METHODS: All consecutive patients with primary cutaneous BCCs, who were histologically diagnosed at our Department of Pathology during a 10-year period were enrolled into the study...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/28612615/-new-drugs-in-the-treatment-of-acute-myeloid-leukemia-in-the-elderly
#6
Z Šustková, M Čulen, L Semerád, I Ježíšková, D Dvořáková, Z Ráčil, J Mayer
BACKGROUND: At the time of diagnosis, most patients with acute myeloid leukemia are older than 65 years of age. Treatment of this group of patients is challenging because they become less tolerant to aggressive chemotherapy with increasing age. Less than one-third of elderly patients are considered eligible for intensive treatment; nevertheless, the survival analysis for this population remains poor. Due to numerous comorbidities and an overall deteriorating condition, most elderly patients with acute myeloid leukemia receive only palliative or best supportive care, which are associated with a high mortality rate...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/28612614/-malignant-melanoma-from-classical-histology-towards-molecular-genetic-testing
#7
A Ryška, O Horký, J Berkovcová, I Tichá, M Kalinová, M Matějčková, Á Bóday, J Drábek, P Martínek, J Šimová, K Sieglová, H Vošmiková
BACKGROUND: Malignant melanoma is - in comparison with other skin tumors - a relatively rare malignant neoplasm with highly aggressive biologic behavior and variable prognosis. Recent data in pathology and molecular diagnostics indicate that malignant melanoma is in fact not a single entity but a group of different neoplasms with variable etiopathogenesis, biologic behavior and prognosis. New therapeutic options using targeted treatment blocking MAPK signaling pathway require testing of BRAF gene mutation status...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/28612613/-recent-overview-of-kidney-cancer-diagnostics-and-treatment
#8
J Marenčák, M Ondrušová, D Ondruš
The incidence of kidney cancer has increased in the majority of countries worldwide, and this disease has relatively high lethality. For many years, the Slovak Republic has been among the countries with the highest kidney cancer incidence, in particular in 2012 (according to global estimated values) in both genders, although mainly in females. In the last few years, the Czech Republic has had the highest incidence of kidney cancer worldwide. The use of imaging techniques such as ultrasound and computerized tomography has increased the detection of asymptomatic renal cell cancer...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/28612612/-molecular-aspects-of-thyroid-tumors-with-emphasis-on-microrna-and-their-clinical-implications
#9
M Ludvíková, I Kholová, D Kalfeřt
BACKGROUND: Central to neoplastic transformation and tumor progression is alteration of the signaling pathways that control cell proliferation and apoptosis. The key mechanisms for this neoplastic process are genetic changes (mutations of cancer-related genes) and recently identified epigenetic changes that involve DNA methylation, chromatin remodeling (which has a profound effect on the control of gene expression), and noncoding, regulatory RNA (notably, microRNA - miRNA). MiRNAs control expression of their target gene post-transcriptionally...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/28471205/-everolimus-in-daily-clinical-practice-focusing-to-oral-mucosa-damage-issues-single-oncology-centre-experience-within-the-course-of-the-year-2016
#10
S Vokurka, M Votavová, V Arnetová, H Korunková, T Svoboda, J Kulhánková, K Kališová, V M Matějka, O Fiala, J Fínek
BACKGROUND: Oral mucositis, mTOR associated stomatitis, is a major complication in everolimus (EVE) treatment with an incidence of 44-64%. The management of it in the daily practice has not been described enough, so far. PATIENTS AND METHODS: Retrospective analysis of patients treated with EVE in 2016 at our center, n = 42 patients (69% female), median age 66 (37-81) years, breast cancer in 20 (48%) and renal cell carcinoma in 22 (52%), starting EVE dose of 10mg/day in 34 (81%) and 5mg/day in 8 (19%) patients...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/28471204/-diagnostic-and-therapeutic-potential-of-membrane-hsp90
#11
O Vacek, M Pastorek, M Durech, B Vojtěšek, P Müller
BACKGROUND: Heat shock protein (HSP90) is a molecular chaperone involved in maintaining protein homeostasis by modulating stability of de novo synthesized proteins. Neoplastic cells with high metabolic rate have higher expression of HSP90 and develop so called "chaperone addiction". Specific inhibition of HSP90 has been therefore discussed as a viable therapeutic strategy and several inhibitors of HSP90 have already entered clinical trials. Recently, a novel role for HSP90 was found on plasma membrane of cancer cells...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/28471203/-ascites-may-provide-useful-information-for-diagnosis-of-ovarian-cancer
#12
E Stuchlíková, M Zahradníková, R Nenutil, D Valík, B Vojtěšek, M Novotný, L Hernychova
BACKGROUND: Ovarian cancer is the most lethal gynecological cancer, almost 80% of all patients succumb the disease within 5 years of diagnosis. High mortality is caused especially by nonspecific symptoms, diagnosis in late stages and the absence of a specific biomarker. Currently, the most common diagnostic biomarkers are the membrane glycoprotein Cancer Antigen 125 (CA 125), the Human Epididymal Protein 4 (HE4) and the Carcinoembryonic Antigen (CAE). None of these biomarkers is specific only for ovarian cancer and increased levels may be caused by other diseases...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/28471202/-use-of-porous-hydrogel-as-a-3d-scaffold-for-the-growth-of-leukemic-b-lymphocytes
#13
R Studená, D Horák, J Baloun, Z Plichta, Š Pospíšilová
BACKGROUND: Primary human B cells chronic lymphocytic leukemia undergoes apoptosis, from which they can be rescued by contact with stromal cells or by the addition of specific soluble factor, when cultured in vitro. For research purposes of the behavior of CLL cells we created 3D in vitro model in which we simulated appropriate microenvironment for CLL cells to allow study the mechanism of survival of these cells in long-term cultivation. MATERIAL AND METHODS: Our aim was the scaffold structure to be geometrically similar to the 3D morphology of supporting bone marrow tissue in a trabecular bone; the 3D scaffold was also designed to conform to biocompatibility, sufficiently large surface area for cell attachment, high porosity for cell migration, proliferation and transport of nutrients...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/28471201/-microrna-analysis-in-epithelial-ovarian-cancer
#14
L Sommerová, H Ďuríková, J Podhorec, R Hrstka
BACKGROUND: Ovarian carcinoma is a type of cancer with high mortality, which is often diagnosed in late stages indicating the necessity to identify new non-invasive biomarkers for detection this malignancy in early stages of the disease. MicroRNAs (miRNAs) seem to be one of the potential possibilities. MiRNAs are small noncoding RNA molecules, which regulate gene expression and are involved in many cellular processes including carcinogenesis. PATIENTS AND METHODS: Total RNA was isolated from sera of nine ovarian cancer patients treated at Masaryk Memorial Cancer Institute...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/28471200/-fullerene-doxorubicin-nanotransporter-for-target-interaction-with-mutated-gene-brca2
#15
S Skaličková, M Löfelmann, M Gargulák, M Dočekalová, B Ruttkay-Nedecký, P Suchý, M Kepinská, R Kizek
BACKGROUND: Malignant breast tumors are in developed countries, the most common cancer affecting mainly women. It is estimated that approximately 5-10% of breast cancers are conditioned by genetic family burdens, caused by mutation in the BRCA2 gene. In the course of the treatment doxorubicin is frequently used therapeutics. Despite its therapeutic efficacy, however, it shows high cardiotoxicity. Possibility to increase the therapeutic window, represent nanotransporters. Fullerenes are nanoparticles composed of carbon atoms whose physical-chemical properties indicate high stability...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/28471199/-zinc-modified-nanotransporter-for-target-drug-therapy-of-breast-cancer
#16
S Skaličková, M Gargulák, M Löffelmann, B Ruttkay-Nedecký, M Kepinská, T Parák, R Kizek
BACKGROUND: In the centre of nanomedical interest stands the nanotechnological modification of anthracycline antibiotics, which are often used in antitumor treatment of hematological malignancies and solid tumors. Chitosan nanoparticles are gaining more attention in the field of targeted transport of drugs because of their stability, low toxicity and simple preparation. The main objective of the project, was the design of chitosan nanotransporter of anthracycline antibiotics with zinc modified surface, for a specific interaction with metallothionein...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/28471198/-can-we-observe-ethnic-difference-in-basic-blood-tests-single-institution-data-from-cancer-prevention-programme-in-the-czech-republic
#17
M Řiháček, D Valík, R Vyzula, L Zdražilová Dubská
BACKGROUND: Laboratory tests are standard part of a routine check-up of current medical status and an important tool in diagnostic workup, in planning or evaluation of treatment, and disease monitoring. To reduce misdiagnosis, accurate reference intervals reflecting age, sex, ethnicity and other relevant clinical parameters must be established. We aimed to explore ethnic difference in basic blood parameters relevant for the Czech Republic. PATIENTS AND METHODS: The study was performed analyzing blood tests from 13,126 individuals in cancer prevention program...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/28471197/-circulating-myeloid-suppressor-cells-and-their-role-in-tumour-immunology
#18
K Pilatova, E Budinská, B Bensciková, R Nenutil, R Šefr, L Fedorová, B Hanáková, V Brychtová, L Zdražilová Dubská
BACKGROUND: Myeloid-derived suppressor cells (MDSCs) are heterogenic population of multipotent progenitors of myeloid lineage. For their immunosuppressive effect, MDSC are responsible for tumour escape from the host immune surveillance. Furthermore, MDSCs support tumour by promotion of angiogenesis and metastasis. Membrane markers of human MDSCs are myeloid markers CD11b and CD13, these cells are HLA-Drlow/- and expression of CD15 or CD14 differentiate them into granulocytic (Gr-MDSCs) and monocytic (Mo-MDSCs), resp...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/28471196/-the-importance-of-microrna-deregulation-in-the-molecular-pathogenesis-and-histological-transformation-of-follicular-lymphoma
#19
K Musilová, J Deván, L Zlámalíková, L Křen, H Móciková, V Procházka, J Mayer, M Trněný, A Janíková, M Mráz
BACKGROUND: Molecular pathogenesis of follicular lymphoma (FL) is characterized by substantial dysregulation of epigenetic regulators. Many cases of FL are associated with the aberrant expression of non-coding regulatory RNAs, namely microRNAs (miRNA). Here we studied changes in miRNA expression and their association with histological transformation of FL to diffuse large B-cell lymphoma (DLBCL). MATERIAL AND METHODS: To identify changes in miRNA levels during FL transformation we performed a global expression analysis of 377 miRNAs in 16 samples (8 pairs) from FL patients vs...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/28471195/-application-of-pla-method-for-detection-of-p53-p63-p73-complexes-in-situ-in-tumour-cells-and-tumour-tissue
#20
V Hrabal, M Nekulová, R Nenutil, J Holčaková, P J Coates, B Vojtěšek
BACKGROUND: PLA (proximity ligation assay) can be used for detection of protein-protein interactions in situ directly in cells and tissues. Due to its high sensitivity and specificity it is useful for detection, localization and quantification of protein complexes with single molecule resolution. One of the mechanisms of mutated p53 gain of function is formation of proten-protein complexes with other members of p53 family - p63 and p73. These interactions influences chemosensitivity and invasivity of cancer cells and this is why these complexes are potential targets of anti-cancer therapy...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
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