Search results for "Cancer"

The synergistic effect exerted by the HDAC inhibitor SAHA and the sesquiterpene lactone parthenolide on triple negative breast canc er cells

2014

Triple-negative breast cancer (TNBC) is a subtype o f breast cancer, insensitive to endocrine therapy. Chemotherapy is the main form of treatment, but is accompanied by a high rate of recidivism. The sesquiterpene lactone Parthenolide (PN) exerts a cy totoxic effect on MDA-MB231 cells, a TNBC cell line (1), but was ineffective at low doses (2-5μM). This repr esents an obstacle for a therapeutic utilization of PN. We supposed, in line with other authors (2), that PN c auses a protective response, which at low doses pre vails on the cytotoxic effect. With the aim of inhibiting this protective effect we have shown that pre-trea tment of MDA-MB231 cells with SAHA (2-5μM), an histone deace tylat…

Trombocitozes saistība ar ne-sīkšūnu plaušu vēža pacientu demogrāfiskajiem un klīniskajiem faktoriem

2019

Ievads. Lai gan tiek izstrādātas arvien efektīvākas ļaundabīgo audzēju agrīnas skrīninga un diagnostikas metodes, ne-sīkšūnu plaušu vēzis vēl joprojām pārsvarā tiek atklāts III vai IV stadijā, līdz ar to tas ir viens no vadošajiem audzējiem mirstības ziņā. Trombocīti piedalās vēža šūnu augšanā un tālākā izplatīšanā pa organismu. Ne-sīkšūnu plaušu vēža pacientiem bieži ir palielināts trombocītu skaits, kas ir saistīts ar sliktu prognozi. Tamdēļ, ir būtiski noskaidrot vai pastāv kādi ne-sīkšūnu plauša vēža pacienta demogrāfiskie vai klīniskie rādītāji, kam ir korelācija ar trombocitozi. Tas ļautu laicīgi paredzēt to, ka pacientam iespējams būs palielināts trombocītu skaits un izrietoši sliktā…

Targeting the Activin Receptor Signaling to Counteract the Multi-Systemic Complications of Cancer and Its Treatments

2021

Muscle wasting, i.e., cachexia, frequently occurs in cancer and associates with poor prognosis and increased morbidity and mortality. Anticancer treatments have also been shown to contribute to sustainment or exacerbation of cachexia, thus affecting quality of life and overall survival in cancer patients. Pre-clinical studies have shown that blocking activin receptor type 2 (ACVR2) or its ligands and their downstream signaling can preserve muscle mass in rodents bearing experimental cancers, as well as in chemotherapy-treated animals. In tumor-bearing mice, the prevention of skeletal and respiratory muscle wasting was also associated with improved survival. However, the definitive proof tha…

Extracellular Vesicles as Shuttles of Tumor Biomarkers and Anti-Tumor Drugs

2014

Extracellular vesicles (EV) include vesicles released by either normal or tumor cells. EV may exceed the nanometric scale (microvesicles), or to be within the nanoscale, also called exosomes. Thus, it appears that only exosomes and larger vesicles may have the size for potential applications in nanomedicine, in either disease diagnosis or therapy. This is of particular interest for research in cancer, also because the vast majority of existing data on EV are coming from pre-clinical and clinical oncology. We know that the microenvironmental features of cancer may favor cell-to-cell paracrine communication through EV, but EV have been purified, characterized, and quantified from plasma of tu…

Preliminary data on antiproliferative effects in haemocyte extracts of the ascidian Styela plicata (Stolidobranchiata, Styelidae)

2008

Urīnizvadceļu agrīno komplikāciju raksturojums pacientiem pēc taisnās zarnas vēža rezekcijas

2018

Mūsdienu klīniskajā medicīnā taisnās zarnas vēzis ir viena no nopietnām problēmām. Taisnās zarnas vēža ārstēšana balstās, galvenokārt, uz ķirurģiskās operācijas, kas, neskatoties uz visu mūsdienas medicīnas attīstību, var novest pie vairākām komplikācijām. Starp visiem pēcoperācijas traucējumiem vienu no vietām aizņem urīna izvadceļu komplikācijas. Zinātniskajos avotos ir aprakstīts, ka pētāmā problēma ir sastopamā 5-88% gadījumos, vīdēji 27% gadījumos, kas ir ļoti būtiski. Minētā tēma ir pētīta no pagājušā gadsimta, bet neskatoties uz lielu un aktīvo zinātnisko interesi, arī šodien pastāv dažādi un dažreiz pretrunīgi viedokļi un atšķirīgi dati par faktoriem, kas ietekmē pēcoperācijas urīna…

Velocidad de crecimiento tumoral: Definición del valor pronóstico en el carcinoma epidermoide cutáneo y en el melanoma

2015

La incidencia del cáncer de piel se ha incrementado exponencialmente en los últimos años debido en parte a la mayor longevidad de la población general a nivel mundial, y en parte atribuible a la modificación del comportamiento social con respecto a la exposición solar con un predominio de un patrón de exposición intenso vacacional desde mediados del siglo XX. Dentro de los diferentes cánceres de piel clasificados en base a la tasa de frecuencia/mortalidad global, el melanoma maligno (MM) y el carcinoma epidermoide cutáneo (CEC) son los más relevantes en el campo de la Dermatología. En los últimos años se han producido grandes avances en la capacidad de predecir el pronóstico y en el tratami…

Platelet cut-off for anticoagulant therapy in thrombocytopenic patients with blood cancer and venous thromboembolism: an expert consensus

2019

Background. Management of venous thromboembolism (VTE) in patients with haematologic malignancies and thrombocytopenia is clinically challenging due to the related risks. No prospective studies or clinical trials have been carried out and, therefore, no solid evidence on this compelling issue is available. Methods. Given this, an expert panel endorsed by the Gruppo Italiano Malattie Ematologiche dell'Adulto Working Party on Thrombosis and Haemostasis was set up to produce a formal consensus, according to the RAND method, in order to issue clinical recommendations about the platelet (PLT) cut-off for safe administration of low molecular weight heparin (LMWH) in thrombocytopenic (PLT <100×…

Chronic inflammation and immune activation in vesciculobullous disease could be a trigger factor for oral cancer? A case report

2016

Immune responses during COVID-19 infection

2020

International audience; Over the past 16 years, three coronaviruses (CoVs), severe acute respiratory syndrome CoV (SARS-CoV) in 2002, Middle East respiratory syndrome CoV (MERS-CoV) in 2012 and 2015, and SARS-CoV-2 in 2020, have been causing severe and fatal human epidemics. The unpredictability of coronavirus disease-19 (COVID-19) poses a major burden on health care and economic systems across the world. This is caused by the paucity of in-depth knowledge of the risk factors for severe COVID-19, insufficient diagnostic tools for the detection of SARS-CoV-2, as well as the absence of specific and effective drug treatments. While protective humoral and cellular immune responses are usually m…