Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 50
Filtrar
1.
Front Pharmacol ; 15: 1375955, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38756379

RESUMEN

The receptorial responsiveness method (RRM) enables the estimation of a change in concentration of an (even degradable) agonist, near its receptor, via curve fitting to (at least) two concentration-effect (E/c) curves of a stable agonist. One curve should be generated before this change, and the other afterwards, in the same system. It follows that RRM yields a surrogate parameter ("cx") as the concentration of the stable agonist being equieffective with the change in concentration of the other agonist. However, regression can be conducted several ways, which can affect the accuracy, precision and ease-of-use. This study utilized data of previous ex vivo investigations. Known concentrations of stable agonists were estimated with RRM by performing individual (local) or global fitting, this latter with one or two model(s), using a logarithmic (logcx) or a nonlogarithmic (cx) parameter (the latter in a complex or in a simplified equation), with ordinary least-squares or robust regression, and with an "all-at-once" or "pairwise" fitting manner. We found that the simplified model containing logcx was superior to all alternative models. The most complicated individual regression was the most accurate, followed closely by the moderately complicated two-model global regression and then by the easy-to-perform one-model global regression. The two-model global fitting was the most precise, followed by the individual fitting (closely) and by the one-model global fitting (from afar). Pairwise fitting (two E/c curves at once) improved the estimation. Thus, the two-model global fitting, performed pairwise, and the individual fitting are recommended for RRM, using the simplified model containing logcx.

2.
Sci Rep ; 13(1): 17378, 2023 10 13.
Artículo en Inglés | MEDLINE | ID: mdl-37833455

RESUMEN

Clinical trials revealed significant antitumor activity for immune checkpoint inhibitors (ICI) in metastatic urothelial carcinoma (mUC). Due to their strict eligibility criteria, clinical trials include selected patient cohorts, and thus do not necessarily represent real-world population outcomes. In this multicentric, retrospective study, we investigated real-world data to assess the effectiveness of pembrolizumab and atezolizumab and to evaluate the prognostic value of routinely available clinicopathological and laboratory parameters. Clinical and follow-up data from mUC patients who received ICIs (01/2017-12/2021) were evaluated. Overall survival (OS), progression-free survival (PFS), objective response rate (ORR), disease control rate (DCR), and duration of response (DOR) were used as endpoints. Patients' (n = 210, n = 76 atezolizumab and 134 pembrolizumab) median OS and PFS were 13.6 and 5.9 months, respectively. Impaired ECOG-PS, the presence of visceral, liver or bone metastases, and hemoglobin levels were independently associated with poor OS and DCR. Furthermore, Bellmunt risk factors and the enhanced Bellmunt-CRP score were shown to be prognostic for OS, PFS and DCR. In conclusion, ICIs are effective treatments for a broad range of mUC patients. Our results confirmed the prognostic value of numerous risk factors and showed that Bellmunt risk scores can further be improved when adding CRP to the model.


Asunto(s)
Carcinoma de Células Transicionales , Neoplasias de la Vejiga Urinaria , Humanos , Inhibidores de Puntos de Control Inmunológico/uso terapéutico , Estudios Retrospectivos , Radioinmunoterapia
3.
Antioxidants (Basel) ; 12(5)2023 May 20.
Artículo en Inglés | MEDLINE | ID: mdl-37237995

RESUMEN

(1) Background: In cardiovascular applications, paclitaxel inhibits smooth muscle cell proliferation and migration and significantly reduces the occurrence of restenosis and target lesion revascularization. However, the cellular effects of paclitaxel in the myocardium are not well understood; (2) Methods: Wistar rats were divided into four groups: control (CTRL), isoproterenol (ISO) treated (1 mg/kg) and two groups treated with paclitaxel (PAC), which was administrated (10 mg/kg/day) for 5 days by gavage/per os alone or in combination (ISO + PAC) 3 weeks after ISO treatment. Ventricular tissue was harvested 24 h later for measurements of heme oxygenase (HO-1), reduced glutathione (GSH), oxidized glutathione (GSSG), superoxide dismutase (SOD), NF-κB, TNF-α and myeloperoxidase (MPO); (3) Results: HO-1 protein concentration, HO-1 activity, SOD protein concentration and total glutathione significantly decreased in response to ISO treatment. When PAC was administered in conjunction with ISO, HO-1, SOD concentration and total glutathione were not different from control levels. MPO activity, NF-κB concentration and TNF-α protein concentration were significantly increased in the ISO-only group, while the levels of these molecules were restored when PAC was co-administered; (4) Conclusions: Oral administration of PAC can maintain the expression of important antioxidants, anti-inflammatory molecules, HO-1, SOD and GSH, and suppress the production of TNF-α, MPO and NF-κB, which are involved in myocardial damage. The principal component of this cellular defense seems to be the expression of HO-1.

4.
Orv Hetil ; 164(16): 602-609, 2023 Apr 23.
Artículo en Húngaro | MEDLINE | ID: mdl-37087728

RESUMEN

Urachal carcinoma is a rare malignancy that is uniquely associated with the field of urology. Urachal carcinoma is mostly diagnosed in urological care centers due to its most frequently presenting symptom that is hematuria. Currently available diagnostic and therapeutic knowledge is solely based on case reports and single center series, while no prospective clinical studies are carried out due to the modest number of patients. These circumstances have made creating professional guidelines challenging, hence the treatment of urachal carcinoma is commonly based on individual clinical decisions. In this review, we summarize the epidemiology, diagnostic modalities, prognosis as well as local and systemic therapeutic approaches of urachal carcinoma. Furthermore, we aim to draw conclusions from this knowledge base that may guide clinical decision-making. Finally, we highlight some of the novel therapeutic strategies that hold the potential to improve urachal carcinoma patients' prognosis and quality of life. Orv Hetil. 2023; 164(16): 602-609.


Asunto(s)
Calidad de Vida , Neoplasias de la Vejiga Urinaria , Humanos , Neoplasias de la Vejiga Urinaria/diagnóstico , Neoplasias de la Vejiga Urinaria/terapia , Pronóstico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico
5.
Magy Onkol ; 67(1): 84-89, 2023 Apr 22.
Artículo en Húngaro | MEDLINE | ID: mdl-37086461

RESUMEN

Considering the data of the past years, the number of kidney tumor patients grows constantly. These patients are usually found incidentally with the help of common imaging procedures. The classic triad - lower back pain, bloody urine, and palpable flank terime - occurs rarely. Their presence foresees an advanced disease. In our article, in addition to the mentioning of the epidemiological and etiological data, symptoms, surgical therapy and histological types of the kidney tumors, we present the adjuvant treatment options, their types and effectiveness.


Asunto(s)
Neoplasias Renales , Humanos , Neoplasias Renales/cirugía , Diagnóstico por Imagen
6.
Magy Onkol ; 67(1): 73-83, 2023 Apr 22.
Artículo en Húngaro | MEDLINE | ID: mdl-37086460

RESUMEN

The aim of our analysis was to evaluate the efficacy of cabozantinib in patients with metastatic renal cell carcinoma. Cabozantinib therapy initiated between 01/01/2019 and 31/12/2022 was evaluated based on a retrospective review of data from 14 renal centers in Hungary. The starting dose was 60 or 40 mg. Physical examinations and laboratory tests were performed every 4 weeks and imaging studies 3-monthly. Tumor response was assessed according to RECIST 1.1, and toxicity according to NCI CTCAE 4.0. A total of 230 patient records were evaluated, 201 (87.4%) of them had clear cell RCC. Cabozantinib was administered as third, second and first-line treatment in 48.7%, 38.3% and <5% of cases, respectively. Dose reductions occurred in 62.6% and treatment interruption in 6.5%. Duration of therapy was 10.03 months, which was independent of dose reduction. Overall tumor response rate was 39.2% and clinical benefit was 82.8%. The duration of first-, second-, third- and fourth-line treatment was 11.47, 8.03, 11.57 and 10.13 months, respectively. Overall survival from the start of therapy was 22.0 months. Cabozantinib therapy in daily practice was more beneficial than according to registry study results. Dose reduction did not affect efficacy.


Asunto(s)
Carcinoma de Células Renales , Neoplasias Renales , Humanos , Carcinoma de Células Renales/tratamiento farmacológico , Hungría , Resultado del Tratamiento , Estudios Retrospectivos
7.
Magy Onkol ; 67(1): 1-10, 2023 Mar 29.
Artículo en Húngaro | MEDLINE | ID: mdl-36989491

RESUMEN

The aim of our analysis was to evaluate the efficacy of cabozantinib in patients with metastatic renal cell carcinoma. Cabozantinib therapy initiated between 01/01/2019 and 31/12/2022 was evaluated based on a retrospective review of data from 14 renal centers in Hungary. The starting dose was 60 or 40 mg. Physical examinations and laboratory tests were performed every 4 weeks and imaging studies 3-monthly. Tumor response was assessed according to RECIST 1.1, and toxicity according to NCI CTCAE 4.0. A total of 230 patient records were evaluated, 201 (87.4%) of them had clear cell RCC. Cabozantinib was administered as third, second and first-line treatment in 48.7%, 38.3% and <5% of cases, respectively. Dose reductions occurred in 62.6% and treatment interruption in 6.5%. Duration of therapy was 10.03 months, which was independent of dose reduction. Overall tumor response rate was 39.2% and clinical benefit was 82.8%. The duration of first-, second-, third- and fourth-line treatment was 11.47, 8.03, 11.57 and 10.13 months, respectively. Overall survival from the start of therapy was 22.0 months. Cabozantinib therapy in daily practice was more beneficial than according to registry study results. Dose reduction did not affect efficacy.


Asunto(s)
Carcinoma de Células Renales , Neoplasias Renales , Humanos , Carcinoma de Células Renales/tratamiento farmacológico , Hungría , Resultado del Tratamiento , Estudios Retrospectivos
8.
Artículo en Inglés | MEDLINE | ID: mdl-36674026

RESUMEN

The COVID-19 pandemic has posed a huge challenge to the world in recent years. The development of vaccines that are as effective as possible and accessible to society offers a promising alternative for addressing the problems caused by this situation as soon as possible and to restore the pre-epidemic system. The present study investigated the preferences of residents in Hungary's second-largest city (Debrecen) for the COVID-19 vaccine. To achieve this aim, a discrete choice experiment was conducted with 1011 participants, and the vaccine characteristics included in the design of the experiment were determined by qualitative methods and a pilot survey: (1) country of origin; (2) efficiency; (3) side effect; and (4) duration of protection. During the data collection at three vaccination sites, respondents were asked to choose between three vaccine alternatives and one "no choice" option in eight decision situations. Discrete choice model estimations were performed using a random parameter logit (RPL) specification with the final model extended to include a latent variable measuring pandemic awareness. The results showed that the vaccine with a Chinese country of origin is the least preferred among the respondents, while the Hungarian and the European vaccines are the most preferred. Furthermore, the increase in the vaccine efficiency level increased the respondents' sense of utility for the vaccine; the short-term side effect was preferred to the long-term one; and the increase in the duration of protection provided by the vaccine increased the respondents' sense of utility for the vaccine. Based on the parameter estimated for the latent variable, it can be concluded that as the level of pandemic awareness (which is more positive among people with chronic diseases and less important among health workers) increases, the choice of a vaccine option becomes more preferred among respondents compared to the "no choice". The results of our investigation could contribute towards increasing compliance in the case of the vaccination-rejecting population, not only for COVID-19, but for any kind of vaccination procedure.


Asunto(s)
COVID-19 , Vacunas , Humanos , Vacunas contra la COVID-19/uso terapéutico , Pandemias/prevención & control , Hungría , Conducta de Elección , COVID-19/epidemiología , COVID-19/prevención & control , Vacunación
9.
Magy Onkol ; 66(3): 219-222, 2022 Oct 05.
Artículo en Húngaro | MEDLINE | ID: mdl-36200502

RESUMEN

Prostate cancer is one of the most significant cancers among men. In addition to epidemiological and etiological data, this summary provides a description of the most important features of prostate specific antigen, used most, and other markers that can make easier to diagnose the disease. It presents the major international and Hungarian studies dealing with prostate cancer screening, including the economic aspects. Genetic tests, DNA- and RNAbased biomarkers are gaining more and more space, they can even help us in screening and avoiding overdiagnosis. The main goal of the future researches should be to develop methods that can be used to detect prostate cancer at an early, curable stage.


Asunto(s)
Antígeno Prostático Específico , Neoplasias de la Próstata , Detección Precoz del Cáncer , Humanos , Masculino , Tamizaje Masivo/métodos , Neoplasias de la Próstata/diagnóstico , Neoplasias de la Próstata/prevención & control
10.
Magy Onkol ; 66(2): 157-161, 2022 Jun 20.
Artículo en Húngaro | MEDLINE | ID: mdl-35724394

RESUMEN

While metastases are the most common intraocular malignancies, ocular metastases of renal cell carcinoma are rare. The most frequent primary malignancy of the eye is uveal melanoma. The common ocular localization is the choroid in both cases. The clinical differentiation of choroidal metastasis from renal cell carcinoma and choroidal melanoma malignum is a diagnostic challenge for the ophthalmologist. We present two cases where renal cell carcinoma had metastasized to the choroid. Enucleation was performed in a 61- and a 71-year-old male patient with suspected advanced choroidal malignant melanoma following biomicroscopic and B-scan ultrasonography examination. Histopathological examination confirmed clear-cell renal cell carcinoma in both cases. The clinical and ultrasonographic appearance of clear-cell renal cell carcinoma metastasis may mimic choroidal malignant melanoma, and may only be suspected if a primary renal cell carcinoma is already established.


Asunto(s)
Carcinoma de Células Renales , Neoplasias de la Coroides , Melanoma , Anciano , Carcinoma de Células Renales/diagnóstico por imagen , Carcinoma de Células Renales/cirugía , Neoplasias de la Coroides/diagnóstico por imagen , Neoplasias de la Coroides/cirugía , Humanos , Masculino , Melanoma/diagnóstico por imagen , Melanoma/cirugía , Neoplasias de la Úvea
11.
Antioxidants (Basel) ; 11(3)2022 Feb 22.
Artículo en Inglés | MEDLINE | ID: mdl-35326087

RESUMEN

The development and progression of male infertility are closely linked to a sedentary lifestyle; however, its underlying mechanisms are not fully elucidated. Our aim was to assess the protective effects of moderate swimming exercise on the male reproductive system in isoproterenol-treated rats. Male Wistar rats were divided into five groups as follows: (1) non-interventional controls (CTRL), (2) isoproterenol-treated (ISO), (3) pre-treatment swimming training + ISO (PRE + ISO), (4) ISO + post-treatment swimming training (ISO+POST), (5) pre-treatment swimming training + ISO + post-treatment swimming training (PRE + ISO + POST) groups. Testicular oxidative stress was induced by ISO injection (1.0 mg/kg). Rats in the pre- or post-training groups were trained five days a week. At the end of the experimental period, serum testosterone levels, sperms' hyaluronan binding, and total glutathione (GSH) content, as well as myeloperoxidase activity (MPO), TNF alpha and IL6 concentrations in the testis and semen, were measured. Serum testosterone levels, sperms' hyaluronan binding, and GSH content were found to be significantly reduced, while MPO, TNF alpha and IL6 concentrations in the testis and semen were elevated after the ISO treatment compared to the CTRL group. Moderate-intensity swimming exercise effectively alleviated the negative effects of high oxidative stress. Our findings provide the first evidence that moderate-intensity swimming exercise confers sustained protection from isoproterenol-induced adverse effects on testicular inflammation.

12.
J Cell Mol Med ; 26(4): 1332-1337, 2022 02.
Artículo en Inglés | MEDLINE | ID: mdl-34970839

RESUMEN

Baseline or acquired resistance to docetaxel (DOC) represents a significant risk for patients with metastatic prostate cancer (PC). In the last years, novel therapy regimens have been approved providing reasonable alternatives for DOC-resistant patients making prediction of DOC resistance of great clinical importance. We aimed to identify serum biomarkers, which are able to select patients who will not benefit from DOC treatment. DOC-resistant PC3-DR and DU145-DR sublines and their sensitive parental cell lines (DU145, PC3) were comparatively analyzed using liquid chromatography-coupled tandem mass spectrometry (LC-MS/MS). Results were filtered using bioinformatics approaches to identify promising serum biomarkers. Serum levels of five proteins were determined in serum samples of 66 DOC-treated metastatic castration-resistant PC patients (mCRPC) using ELISA. Results were correlated with clinicopathological and survival data. CD44 was subjected to further functional cell culture analyses. We found at least 177 two-fold significantly overexpressed proteins in DOC-resistant cell lines. Our bioinformatics method suggested 11/177 proteins to be secreted into the serum. We determined serum levels of five (CD44, MET, GSN, IL13RA2 and LNPEP) proteins in serum samples of DOC-treated patients and found high CD44 serum levels to be independently associated with poor overall survival (p = 0.001). In accordance, silencing of CD44 in DU145-DR cells resulted in re-sensitization to DOC. In conclusion, high serum CD44 levels may help identify DOC-resistant patients and may thereby help optimize clinical decision-making regarding type and timing of therapy for mCRPC patients. In addition, our in vitro results imply the possible functional involvement of CD44 in DOC resistance.


Asunto(s)
Antineoplásicos , Neoplasias de la Próstata Resistentes a la Castración , Antineoplásicos/farmacología , Biomarcadores , Cromatografía Liquida , Docetaxel/farmacología , Docetaxel/uso terapéutico , Resistencia a Antineoplásicos/genética , Humanos , Receptores de Hialuranos/genética , Masculino , Neoplasias de la Próstata Resistentes a la Castración/tratamiento farmacológico , Neoplasias de la Próstata Resistentes a la Castración/genética , Proteoma , Espectrometría de Masas en Tándem
13.
Orv Hetil ; 162(25): 1004-1008, 2021 06 20.
Artículo en Húngaro | MEDLINE | ID: mdl-34148027

RESUMEN

Összefoglaló. A sérült BRCA1/2 gént hordozó prosztatadaganatok klinikai szempontból elkülönülo, agresszív altípust képviselnek. Ugyanakkor a BRCA1/2 gén sérülése a DNS-támadáspontú kemoterápiákkal szemben érzékennyé teszi a daganatot, ami terápiás szempontból kihasználható. A platinaalapú kemoterápia hatékonysága prosztatarákban klinikai vizsgálatokkal nincs alátámasztva, ezért annak alkalmazására igen ritkán kerül sor. Közleményünkben egy elorehaladott stádiumú, agresszív prosztata adenocarcinomával diagnosztizált beteg esetét mutatjuk be, akinél a BRCA2-gén patogén mutációját találtuk, és akinél az elozoleg alkalmazott androgénmegvonásos, valamint docetaxelkezelések sikertelensége miatt karboplatinkezelést alkalmaztunk - ez a beteg állapotának, valamint radiológiai és biokémiai paramétereinek látványos javulásához vezetett. Ez az eset rámutat a DNS-hiba-javító mechanizmusban szerepet játszó gének terápiás szempontból történo felhasználásának potenciális elonyeire prosztatarákban. Orv Hetil. 2021; 162(25): 1004-1008. Summary. BRCA1/2 deficient prostate cancers represent a clinically distinct aggressive subtype. However, the presence of BRCA1/2 alterations enhance the sensitivity to platinum-based chemotherapies. The efficacy of platinum-based chemotherapies in prostate cancer has not been proven in prospective clinical studies and therefore these treatments are rarely used in prostate adenocarcinomas. Here we present a case of BRCA2 mutant prostate cancer, which was diagnosed at a metastatic stage and showed no or only little response to androgen deprivation and docetaxel therapies. Therefore, we started carboplatin chemotherapy which resulted in an exceptional response regarding biochemical, radiographic parameters accompanied by significant improvement of patients' physical condition. This case underlines the potential therapeutic benefits of testing for genes involved in the DNA repair mechanism. Orv Hetil. 2021; 162(25): 1004-1008.


Asunto(s)
Neoplasias de la Próstata , Antagonistas de Andrógenos , Proteína BRCA2/genética , Carboplatino , Castración , Humanos , Masculino , Mutación , Estudios Prospectivos , Neoplasias de la Próstata/tratamiento farmacológico , Neoplasias de la Próstata/genética
14.
EMBO Mol Med ; 11(8): e9266, 2019 08.
Artículo en Inglés | MEDLINE | ID: mdl-31267692

RESUMEN

Angiogenesis is a hallmark of cancer, promoting growth and metastasis. Anti-angiogenic treatment has limited efficacy due to therapy-induced blood vessel alterations, often followed by local hypoxia, tumor adaptation, progression, and metastasis. It is therefore paramount to overcome therapy-induced resistance. We show that Apelin inhibition potently remodels the tumor microenvironment, reducing angiogenesis, and effectively blunting tumor growth. Functionally, targeting Apelin improves vessel function and reduces polymorphonuclear myeloid-derived suppressor cell infiltration. Importantly, in mammary and lung cancer, Apelin prevents resistance to anti-angiogenic receptor tyrosine kinase (RTK) inhibitor therapy, reducing growth and angiogenesis in lung and breast cancer models without increased hypoxia in the tumor microenvironment. Apelin blockage also prevents RTK inhibitor-induced metastases, and high Apelin levels correlate with poor prognosis of anti-angiogenic therapy patients. These data identify a druggable anti-angiogenic drug target that reduces tumor blood vessel densities and normalizes the tumor vasculature to decrease metastases.


Asunto(s)
Inhibidores de la Angiogénesis/farmacología , Receptores de Apelina/metabolismo , Apelina/metabolismo , Movimiento Celular/efectos de los fármacos , Resistencia a Antineoplásicos , Neoplasias Pulmonares/tratamiento farmacológico , Neoplasias Mamarias Experimentales/tratamiento farmacológico , Neovascularización Patológica , Inhibidores de Proteínas Quinasas/farmacología , Sunitinib/farmacología , Animales , Apelina/antagonistas & inhibidores , Apelina/deficiencia , Apelina/genética , Receptores de Apelina/antagonistas & inhibidores , Receptores de Apelina/deficiencia , Receptores de Apelina/genética , Línea Celular Tumoral , Células Endoteliales/efectos de los fármacos , Células Endoteliales/metabolismo , Células Endoteliales/patología , Femenino , Regulación Neoplásica de la Expresión Génica , Humanos , Neoplasias Pulmonares/genética , Neoplasias Pulmonares/metabolismo , Neoplasias Pulmonares/patología , Neoplasias Mamarias Experimentales/genética , Neoplasias Mamarias Experimentales/metabolismo , Neoplasias Mamarias Experimentales/patología , Ratones , Ratones Endogámicos C57BL , Ratones Noqueados , Células Madre Embrionarias de Ratones/efectos de los fármacos , Células Madre Embrionarias de Ratones/metabolismo , Células Madre Embrionarias de Ratones/patología , Metástasis de la Neoplasia , Transducción de Señal , Carga Tumoral/efectos de los fármacos , Microambiente Tumoral
15.
Urol Oncol ; 37(11): 810.e7-810.e15, 2019 11.
Artículo en Inglés | MEDLINE | ID: mdl-31053526

RESUMEN

OBJECTIVES: Cisplatin-based chemotherapy represents the gold standard in the treatment of advanced bladder cancer (BC) both in the neoadjuvant and adjuvant setting. Since novel immunooncologic agents are available for cisplatin-resistant or ineligible patients, biological markers for the prediction of cisplatin resistance become more important in treatment decisions. Therefore, we aimed to assess the therapy predictive value of 8 promising tissue biomarkers with regard to cisplatin therapy. METHODS: Emmprin, survivin, HMGA2, MTA1, RhoGDI, PEG10, TGM2, and TLN1 expressions were analyzed in paraffin-embedded bladder cancer tissue samples of 106 patients who underwent adjuvant or salvage cisplatin-based chemotherapy by using immunohistochemistry. Results were correlated with the clinicopathological and follow-up data by performing both univariable and multivariable survival analyses. RESULTS: Higher HMGA2 nuclear staining intensity and positive survivin nuclear staining were associated with worse overall survival (OS) (P = 0.045 and P = 0.002, respectively). In accordance, survivin nuclear staining also significantly correlated with shorter progression free survival (PFS, P = 0.024), while HMGA2 nuclear positivity tended to correlate with shorter PFS (P = 0.069) after at least 2 cycles of chemotherapy. In the multivariable analyses only survivin remained as an independent predictor of both OS and PFS (P = 0.008 and P = 0.025). None of the other markers proved to be significant predictors of adjuvant or salvage cisplatin-based chemotherapy. CONCLUSIONS: Our results demonstrate that survivin represents a promising marker for the prediction of cisplatin resistance in BC. In addition the therapy predictive role of HMGA2 should be further investigated. Immunohistochemical analysis of BC samples provides a feasible way for the prediction of cisplatin-resistance and may therefore provide a valuable tool for optimizing treatment decisions in advanced BC.


Asunto(s)
Antineoplásicos/uso terapéutico , Cisplatino/uso terapéutico , Resistencia a Antineoplásicos , Proteína HMGA2/metabolismo , Survivin/metabolismo , Neoplasias de la Vejiga Urinaria/tratamiento farmacológico , Adulto , Anciano , Anciano de 80 o más Años , Biomarcadores de Tumor/metabolismo , Femenino , Humanos , Masculino , Persona de Mediana Edad , Supervivencia sin Progresión , Tasa de Supervivencia , Neoplasias de la Vejiga Urinaria/metabolismo , Neoplasias de la Vejiga Urinaria/mortalidad , Neoplasias de la Vejiga Urinaria/patología
16.
Orv Hetil ; 160(10): 378-385, 2019 Mar.
Artículo en Húngaro | MEDLINE | ID: mdl-30829059

RESUMEN

INTRODUCTION: Both primary and metastatic cases of mucosal melanoma in urogenital localization are rare tumors. Only 4-5% of all primary melanomas do not arise from the skin. Extracutaneous melanomas have a complex clinical presentation, but these aggressive tumors have a poor prognosis. MATERIALS AND METHOD: In our department, we found 7 patients with malignant melanoma of the genitourinary tract in the past few years. The 7 cases were: primary amelanotic melanoma of the female urethra, a primary melanoma of the bladder, two primary melanomas of the penis, a metastatic melanoma of the urethra and another to the testis and a metastatic melanoma of the bladder with melanuria. We retrospectively analyzed the available data to describe the presentation, management, and clinical outcome of the patients. RESULTS: In the three inoperative cases, palliative, urologic surgical procedures and systemic antitumor therapy were performed. Two of the four primary urogenital tumors were localized to the penis. In one case, local recurrence developed after surgical treatment, but with a radical, repeated surgery, the patient has been asymptomatic for a year and a half. In the other, neglected case, the penis melanoma spread through the urethra and the inguinal lymph nodes two years after radical surgery and inguinal block dissection. In the female primary urethral melanoma case, the first histological study reported a primary mesenchymal tumor, and the recurrent tumor that occurred one and a half years later showed melanoma diagnosis. Radical surgery performed because of urethral involvement resulted in a 5-year asymptomatic state, followed by local recurrence and distant metastasis. In the fourth case of a primary bladder melanoma, the rapid progression of the disease and the BRAF positivity of the tumor suggested that not the firstly diagnosed bladder melanoma was the primary tumor. CONCLUSION: The occurrence of urinary tract melanoma is very rare and its discovery happens often in a disseminated state, so the expected prognosis of the cases is also poor. The most important factors for increasing therapeutic efficacy are early diagnosis and radical surgical intervention. Tumors appearing in different localizations require different urological surgical approaches. The literature recommendations for treatment are not uniform. Their prognosis is worse compared to the cutaneous melanoma, which may be due to clinical and pathological diagnostic difficulties. The latest targeted and immunotherapeutic agents can significantly improve the survival of metastatic patients. Orv Hetil. 2019; 160(10): 378-385.


Asunto(s)
Metástasis Linfática/patología , Melanoma/patología , Neoplasias Cutáneas/patología , Neoplasias Urogenitales/patología , Femenino , Humanos , Escisión del Ganglio Linfático , Masculino , Melanoma/cirugía , Recurrencia Local de Neoplasia , Estadificación de Neoplasias , Estudios Retrospectivos , Neoplasias Cutáneas/cirugía , Neoplasias Urogenitales/cirugía
17.
Orv Hetil ; 160(7): 252-263, 2019 Feb.
Artículo en Húngaro | MEDLINE | ID: mdl-30741006

RESUMEN

In the last few years, the emergence of new high throughput molecular technologies allowed a never-before-seen insight into the genetic, epigenetic, transcriptomic and proteomic background of cancers. These studies have been performed in a large number of patients' samples and provided a great amount of data. Current efforts to translate these new findings into therapeutic strategies are ongoing, but already provided significant information which may change clinical practice in the near future. As a result of this development, the most frequent molecular alterations and affected pathways responsible for the formation and progression of prostate cancer have been identified. In this review, we provide an overview on the current progress in primary and metastatic prostate cancer research focusing on the molecular subtype classification and the most frequently dysregulated pathways, such as androgen signaling, PI3K pathway, cell cycle and DNA repair regulation. In this context, we highlight therapies already approved or are currently under clinical investigation for prostate cancer. Orv Hetil. 2019; 160(7): 252-263.


Asunto(s)
Terapia Molecular Dirigida , Neoplasias de la Próstata/tratamiento farmacológico , Andrógenos , Humanos , Masculino , Fosfatidilinositol 3-Quinasas , Transducción de Señal
18.
Reprod Biol ; 19(1): 38-44, 2019 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-30772339

RESUMEN

The relationship between overweight and male fertility is well studied, still the correlation of obesity and decreased sperm quality is a subject to debate. The widely used conventional spermatological examinations alone seem to be inadequate to assess fertilization potential. Hyaluronan Binding Assay (HBA®) is one of the available validated tests that allows the functional examination of sperm. Data of 72 male patients (mean age 33.9 (24-43) years) from infertile couples were analysed. Body Mass Index (BMI) determination, conventional semen analysis and HBA were performed. Additionally, a relatively new Hyaluronan Bound Matured Sperm Count (HB-MaSC) -index, first introduced by the authors in 2015, was calculated. This index reflects fertilization potential of sperm more precisely. With the increase of BMI, sperm count decreased significantly until about 25 kg/m2, above 25 kg/m2 no further decrease was observed, although sperm count remained permanently low. Greater body weight (in the 70-90 kg range) was observed to have a significant negative effect only on the progressive sperm motility. In addition to sperm concentration and motility, sperm fertilization potential is also negatively affected by obesity, but is irrespective of body weight, as evaluated using BMI + HB-MaSC linear regression analyses adjusted for age and weight. This correlation between male BMI and sperm fertilization potential - as opposed to the conventional correlations with sperm concentration or motility - appears to provide more helpful information in the identification of real capability for fertilization.


Asunto(s)
Ácido Hialurónico/química , Infertilidad Masculina/diagnóstico , Recuento de Espermatozoides/normas , Adulto , Índice de Masa Corporal , Peso Corporal , Humanos , Masculino , Análisis de Semen , Adulto Joven
19.
Pathol Oncol Res ; 25(1): 149-156, 2019 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-29027615

RESUMEN

Everolimus is indicated for adults with metastatic renal cell carcinoma (mRCC) after failure of vascular endothelial growth factor receptor-tyrosine kinase inhibitors (TKI). Currently, the therapeutic applicability of EVE has been changing. Multicenter evaluation of efficacy and safety of everolimus in daily routine and definition of patient characteristics with favorable outcome. Data of 165 patients from 9 oncology institutes in Hungary were analyzed retrospectively. Everolimus therapy was used after one TKI in 10 mg starting dose. Physical and laboratory examinations and imaging tests were performed monthly and every 3 months, respectively. Median progression-free survival (PFS) was 5.4 months. Median overall survival (OS) was 16.2 months. PFS and OS results were more favorable in patients with ECOG 0-1 (pPFS = 0.033, pOS = 0.008) and after >9 months of TKI therapy (pPFS = 0.019, pOS = 0.045). Survival was longer in nonanemic patients with ECOG 0-1 than in anemic patients with ECOG 2-3, 30.9 and 7.7 months, respectively (p = 0.029). Dose reduction and treatment delay was required in 6.2% and 8.9% of patients, respectively. Common adverse events were exanthema, edema, stomatitis, anemia, and abnormal kidney functions and glucose levels. Results of this study show that everolimus is safe and efficacious in a real-world setting. Everyday practice showed that nonanemic patients with good performance status receiving TKI therapy for >9 months are favorable candidates for this treatment. Despite the efficiency of novel, registered drugs, everolimus still plays an important role during and after second-line therapy for mRCC when availability of modern remedies is limited.


Asunto(s)
Antineoplásicos/uso terapéutico , Carcinoma de Células Renales/mortalidad , Everolimus/uso terapéutico , Neoplasias Renales/mortalidad , Adulto , Anciano , Carcinoma de Células Renales/tratamiento farmacológico , Carcinoma de Células Renales/patología , Femenino , Estudios de Seguimiento , Humanos , Neoplasias Renales/tratamiento farmacológico , Neoplasias Renales/patología , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Tasa de Supervivencia , Resultado del Tratamiento
20.
Magy Onkol ; 61(4): 353-360, 2017 Dec 18.
Artículo en Húngaro | MEDLINE | ID: mdl-29257155

RESUMEN

Our aim was to assess the efficacy and adverse effects of cabazitaxel (CBZ), a chemotherapeutic agent that can be administered to patients with metastatic castrate resistant prostate cancer (mCRPC) after docetaxel (DOC) therapy. We retrospectively analyzed data of CBZ received by mCRPC patients in 12 Hungarian oncological centers between 01/2016 and 06/2017. CBZ (25 or 20 mg/m2 q3w) was administered after DOC. Physical and laboratory examinations were performed in every cycle, tumor response was evaluated in every third cycle based on PCWG2 criteria. Adverse effects were evaluated based on CTCAE 4.0. Data of 60 patients were analyzed. CBZ was administered in 2nd and 3rd lines in 31.6% and 46.6%, while in 4th and 5th lines in 15% and 6.6% patients, respectively. Its starting dose was 25 mg/m2 and 20 mg/m2 in 65% and 35% of cases, respectively. The median number of cycles was 5. Progression-free survival and overall survival were 5.52 and 15.77 months, respectively. Survival results were similar in case of DOC-CBZ-ART/alfaradin and DOC-ART/alfaradin-CBZ sequences. Adverse effects were detected in 63,3% of patients. The most common adverse effects were neutropenia, anemia, and diarrhea. Our observations suggest that CBZ, with the appropriate support and chemotherapeutic experience, is well-tolerated and effective therapy of mCRPC after DOC.


Asunto(s)
Antígeno Prostático Específico/sangre , Neoplasias de la Próstata Resistentes a la Castración/tratamiento farmacológico , Neoplasias de la Próstata Resistentes a la Castración/mortalidad , Taxoides/uso terapéutico , Factores de Edad , Anciano , Biopsia con Aguja , Estudios de Cohortes , Supervivencia sin Enfermedad , Docetaxel/efectos adversos , Docetaxel/uso terapéutico , Humanos , Hungría , Inmunohistoquímica , Estimación de Kaplan-Meier , Masculino , Persona de Mediana Edad , Invasividad Neoplásica/patología , Metástasis de la Neoplasia , Estadificación de Neoplasias , Seguridad del Paciente/estadística & datos numéricos , Pronóstico , Neoplasias de la Próstata Resistentes a la Castración/patología , Estudios Retrospectivos , Medición de Riesgo , Análisis de Supervivencia , Taxoides/efectos adversos , Resultado del Tratamiento
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA
...