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Oxymatrine Attenuates Tumor Growth and Deactivates STAT5 Signaling in a Lung Cancer Xenograft Model.

Oxymatrine (OMT) is a major alkaloid found in radix Sophorae flavescentis extract and has been reported to exhibit various pharmacological activities. We elucidated the detailed molecular mechanism(s) underlying the therapeutic actions of OMT in non-small cell lung cancer (NSCLC) cells and a xenograft mouse model. Because the STAT5 signaling cascade has a significant role in regulating cell proliferation and survival in tumor cells, we hypothesized that OMT may disrupt this signaling cascade to exert its anticancer effects. We found that OMT can inhibit the constitutive activation of STAT5 by

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… Cells were stained with 5 μM Calcein AM and 5 μM Ethd-1(Ethidium homodimer-1) at 37 °C for 30 min using a Live and Dead assay (Invitrogen, Carlsbad, CA, USA). Because of the intracellular esterase activity, live cells disgregated the Calcein, so cells appeared in green. …

IL-22 способствует возникновению хронической гаммагерпесвирусной инфекции, поддерживая реакцию микробного центра.

Гаммагерпесвирусы, включая вирус Эпштейн-Барр (EBV) и герпесвирус, связанный с Карпози (KSHV), создают скрытые инфекции на протяжении всей жизни, которые способствуют множественным заболеваниям раком и множественным склерозом. Эти вирусы колонизируют наивные клетки B и приводят в действие мощный, поликлонный герминальный центр, чтобы расширить латентный вирусный резервуар и установить пожизненную инфекцию в клетках памяти B. Несмотря на клиническое бремя этих вирусов, факторы, способствующие хронической инфекции, по-прежнему плохо определены. " Interleukin-22 " (IL-22) является крити

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… The samples were run on ethidium bromide stained 2% agarose gel for quantitation. Ex-vivo reactivation efficiency was determined as previously described [ 77 ]. …

Dysregulated TRK signalling is a therapeutic target in CYLD defective tumours.

Individuals with germline mutations in the tumour-suppressor gene CYLD are at high risk of developing disfiguring cutaneous appendageal tumours, the defining tumour being the highly organised cylindroma. Here, we analysed CYLD mutant tumour genomes by array comparative genomic hybridisation and gene expression microarray analysis. CYLD mutant tumours were characterised by an absence of copy-number aberrations apart from LOH chromosome 16q, the genomic location of the CYLD gene. Gene expression profiling of CYLD mutant tumours showed dysregulated tropomyosin kinase (TRK) signalling, with overex

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… Digested products were separated on an agarose gel and visualised using ethidium bromide on an ultraviolet transilluminator. LOH was determined by the absence of a band that corresponded with loss of the wild-type allele in both cases. …

New insights into the activities and toxicities of the old anticancer drug doxorubicin.

The anthracycline drug doxorubicin is among the most used-and useful-chemotherapeutics. While doxorubicin is highly effective in the treatment of various hematopoietic malignancies and solid tumours, its application is limited by severe adverse effects, including irreversible cardiotoxicity, therapy-related malignancies and gonadotoxicity. This continues to motivate investigation into the mechanisms of anthracycline activities and toxicities, with the aim to overcome the latter without sacrificing the former. It has long been appreciated that doxorubicin causes DNA double-strand breaks due to

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… This unique activity is not observed for other DNA intercalators (e.g. ethidium bromide [ 27 ]) or other chemotherapeutics (e.g. amsacrine or proflavin, data not published). Fig. 3 Schematic representation of chromatin damage induced by doxorubicin. …

Anti-cancer mechanisms of action of therapeutic alternating electric fields (tumor treating fields [TTFields]).

Despite improved survival outcomes across many cancer types, the prognosis remains grim for certain solid organ cancers including glioblastoma and pancreatic cancer. Invariably in these cancers, the control achieved by time-limited interventions such as traditional surgical resection, radiation therapy, and chemotherapy is short-lived. A new form of anti-cancer therapy called therapeutic alternating electric fields (AEFs) or tumor treating fields (TTFields) has been shown, either by itself or in combination with chemotherapy, to have anti-cancer effects that translate to improved survival outc

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… Chang et al. (2018) evaluated ethidium D and FITC-dextran uptake in 200 kHz TTFields-exposed human GBM cells, which resulted in a 1.5-fold and 3-fold increase compared to control, respectively, an indication of pore formation in the cellular membrane. …

m6A mRNA methylation initiated by METTL3 directly promotes YAP translation and increases YAP activity by regulating the MALAT1-miR-1914-3p-YAP axis to induce NSCLC drug resistance and metastasis.

BackgroundMETTL3 is an RNA methyltransferase that mediates m6A modification and is implicated in mRNA biogenesis, decay, and translation. However, the biomechanism through which METTL3 regulates MALAT1-miR-1914-3p-YAP axis activity to induce NSCLC drug resistance and metastasis is not very clear.MethodsThe expression of mRNA was analyzed by qPCR assays. Protein levels were analyzed by western blotting and immunofluorescent staining. Cellular proliferation was detected by CCK8 assays. Cell migration and invasion were analyzed by wound healing and transwell assays, respectively. Promoter activit

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… The amounts of RNA baits used are visualized by ethidium bromide staining. Results were presented as mean ± SD of three independent experiments. **P < 0.01 indicates a significant difference between the indicated groups. …

Theranostic Potentials of Gold Nanomaterials in Hematological Malignancies.

Hematological malignancies (HMs) are a heterogeneous group of blood neoplasia generally characterized by abnormal blood-cell production. Detection of HMs-specific molecular biomarkers (e.g., surface antigens, nucleic acid, and proteomic biomarkers) is crucial in determining clinical states and monitoring disease progression. Early diagnosis of HMs, followed by an effective treatment, can remarkably extend overall survival of patients. However, traditional and advanced HMs' diagnostic strategies still lack selectivity and sensitivity. More importantly, commercially available chemotherapeutic dr

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… Then, ethidium bromide (EB) was added to intercalate into the stem of the aptamer hairpin. …

Mitochondrial Genetic and Epigenetic Regulations in Cancer: Therapeutic Potential.

Mitochondria are dynamic organelles managing crucial processes of cellular metabolism and bioenergetics. Enabling rapid cellular adaptation to altered endogenous and exogenous environments, mitochondria play an important role in many pathophysiological states, including cancer. Being under the control of mitochondrial and nuclear DNA (mtDNA and nDNA), mitochondria adjust their activity and biogenesis to cell demands. In cancer, numerous mutations in mtDNA have been detected, which do not inactivate mitochondrial functions but rather alter energy metabolism to support cancer cell growth. Increa

Comprehensive Review of Methodology to Detect Reactive Oxygen Species (ROS) in Mammalian Species and Establish Its Relationship with Antioxidants and Cancer.

Evidence suggests that reactive oxygen species (ROS) mediate tissue homeostasis, cellular signaling, differentiation, and survival. ROS and antioxidants exert both beneficial and harmful effects on cancer. ROS at different concentrations exhibit different functions. This creates necessity to understand the relation between ROS, antioxidants, and cancer, and methods for detection of ROS. This review highlights various sources and types of ROS, their tumorigenic and tumor prevention effects; types of antioxidants, their tumorigenic and tumor prevention effects; and abnormal ROS detoxification in

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… Secondly, there is oxidation by other oxidants such as ˙OH, H 2 O 2 , or OONO − to produce non-specific red fluorescent ethidium (E + ). Generally, both 2-OH-E + and E + may be determined through fluorescent chemical methods. In an intracellular experiment, DHE is a choice for ROS determination. …

How to Treat Melanoma? The Current Status of Innovative Nanotechnological Strategies and the Role of Minimally Invasive Approaches like PTT and PDT.

Melanoma is the most aggressive type of skin cancer, the incidence and mortality of which are increasing worldwide. Its extensive degree of heterogeneity has limited its response to existing therapies. For many years the therapeutic strategies were limited to surgery, radiotherapy, and chemotherapy. Fortunately, advances in knowledge have allowed the development of new therapeutic strategies. Despite the undoubted progress, alternative therapies are still under research. In this context, nanotechnology is also positioned as a strong and promising tool to develop nanosystems that act as drug ca

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… Abbreviations: Ag, silver; AgPt NPs, silver and platinum nanoparticles; AO, acridine orange; Au, gold; Au NPs, gold nanoparticles; BCA, bicinchoninic acid; Cu NPs, copper nanoparticles; Cu 2 O NPs, cuprous oxide nanoparticles; DAPI, diaminidino phenylindole; DOX, doxorubicin; EtBr, ethidium bromide; …

Invited Lectures : Overviews Purinergic signalling: past, present and future.

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Student Summer Research Awards - SSRAAbstracts of the SSRA September 2022 meeting, UCD School of Medicine.

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… Gels were cast in ibidi imaging slides for assessment of cell viability using calcein-AM and ethidium homodimer. Gel contraction with time was used to assess cell contractility, with gels placed in 48-well plates pre-treated with bovine serum albumin to prevent gel attachment. …

P941 – P1197

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… The PCR products were separated electrophoretically in 2% agarose gel and visualized with ethidium bromide under UV. Results: Ureaplasmas were detected in respiratory tracts of 79 (16%) newborns examined. CH showed positive results in 68 cases, BM in 77 cases and PCR in 75 cases. …

ICAR 2011. Italian Conference on AIDS and Retroviruses, Florence, Italy, 27-29 March 2011. Abstracts.

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Клиническое представление лептоспироза: ретроспективное исследование 34 Пациенты поступили в одно учебное заведение во Франции.

Лептоспироз имеет весьма изменчивое клиническое представление, которое может быть связано с различными заражающими сероварами, факторами хост-компьютеров или их комбинацией. Это исследование проводилось ретроспективно 34 Число пациентов с серологическим подтвержденным лептоспирозом, принятых в течение отчетного периода 1992-2002. Наиболее частыми симптомами при поступлении в школу были лихорадка (см.100%), головная боль75%), миальгии55%), артхальгии45%) и рвотой (т.е.39%). Применяемые лабораторные исследования включали в себя лимфопенцию (см.85%), тромбоцитопенсия75%), повышенные ферменты пече

10th Trends in Medical Mycology Held on 8 to 11 October 2021, Aberdeen, Scotland, Organized by the European Confederation of Medical Mycology (ECMM).

Plenary Sessions: [...].

ECC-4 Abstracts

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The Fifth International Meeting of ISEV, ISEV2016, Rotterdam, The Netherlands, 4 - 7 May, 2016.

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ESICM LIVES 2016: part two : Milan, Italy. 1–5 October 2016

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