Результаты поиска

Treatment of medulloblastoma using an oncolytic measles virus encoding the thyroidal sodium iodide symporter shows enhanced efficacy with radioiodine.

BackgroundMedulloblastoma is the most common malignant brain tumor of childhood. Although the clinical outcome for medulloblastoma patients has improved significantly, children afflicted with the disease frequently suffer from debilitating side effects related to the aggressive nature of currently available therapy. Alternative means for treating medulloblastoma are desperately needed. We have previously shown that oncolytic measles virus (MV) can selectively target and destroy medulloblastoma tumor cells in localized and disseminated models of the disease. MV-NIS, an oncolytic measles virus t

Совпадение в полном тексте источника
… MV-NIS stocks were propagated by infecting Vero cells at an MOI of 0.01 in a minimal volume of OptiMEM (Invitrogen, Carlsbad, CA) for 2 hours. Unbound virus was then removed and replaced with DMEM with 10% FBS and the cells were incubated an additional 48–72 hours at 37°C. … Viral titers were determined by 50% tissue culture infective dose (TCID 50 ) titration on Vero cells [ 17 ]. In vitro infection assays D283med and UW426 cells were seeded in six-well plates at a density of 2.5 × 10 5 cells/well. …

Detection of measles virus genome directly from clinical samples by reverse transcriptase-polymerase chain reaction and genetic variability.

A simple and sensitive method for the detection of measles virus genome was developed, amplifying the regions encoding the nucleocapsid (N) protein and hemagglutinin (H) protein of measles virus by reverse transcriptase-polymerase chain reaction (RT-PCR). We examined a variety of measles patients: 28 patients with natural infection, 4 with measles encephalitis and 1 with subacute sclerosing panencephalitis (SSPE). In 28 patients with natural measles infection a single step PCR amplifying the N region resulted in a high detection rate for all plasma samples (28/28) within 3 days of the onset of

Identification of broad anti-coronavirus chemical agents for repurposing against SARS-CoV-2 and variants of concern.

Endemic human coronaviruses (hCoVs) 229E and OC43 cause respiratory disease with recurrent infections, while severe acute respiratory syndrome (SARS)-CoV-2 spreads across the world with impact on health and societies. Here, we report an image-based multicycle infection procedure with α-coronavirus hCoV-229E-eGFP in an arrayed chemical library screen of 5440 clinical and preclinical compounds. Toxicity counter selection and challenge with the β-coronaviruses OC43 and SARS-CoV-2 in tissue culture and human airway epithelial explant cultures (HAEEC) identified four FDA-approved compounds with ora

Совпадение в полном тексте источника
… Although Fostamatinib inhibited SARS-CoV-2 infection of cultured human cells and African green monkey Vero cells, we did not pursue this compound further due to morphological alterations in the HAEEC, including outgrowth of fibroblasts. …

Drug Combinations as a First Line of Defense against Coronaviruses and Other Emerging Viruses.

The world was unprepared for coronavirus disease 2019 (COVID-19) and remains ill-equipped for future pandemics. While unprecedented strides have been made developing vaccines and treatments for COVID-19, there remains a need for highly effective and widely available regimens for ambulatory use for novel coronaviruses and other viral pathogens. We posit that a priority is to develop pan-family drug cocktails to enhance potency, limit toxicity, and avoid drug resistance. We urge cocktail development for all viruses with pandemic potential both in the short term (<1 to 2 years) and longer term wi

Automated SARS-COV-2 RNA extraction from patient nasopharyngeal samples using a modified DNA extraction kit for high throughput testing.

BACKGROUND: The pandemic of severe acute respiratory syndrome coronavirus 2 (SARS-COV-2) has prompted a need for mass testing to identify patients with viral infection. The high demand has created a global bottleneck in testing capacity, which prompted us to modify available resources to extract viral RNA and perform reverse transcription quantitative real-time polymerase chain reaction (RT-qPCR) to detect SARS-COV-2. OBJECTIVES: Report on the use of a DNA extraction kit, after modifications, to extract viral RNA that could then be detected using an FDA-approved SARS-COV-2 RT-qPCR assay. MAT

Potential drug development and therapeutic approaches for clinical intervention in COVID-19.

While the vaccination is now available to many countries and will slowly dissipate to others, effective therapeutics for COVID-19 is still illusive. The SARS-CoV-2 pandemic has posed an unprecedented challenge to researchers, scientists, and clinicians and affected the wellbeing of millions of people worldwide. Since the beginning of the pandemic, a multitude of existing anti-viral, antibiotic, antimalarial, and anticancer drugs have been tested, and some have shown potency in the treatment and management of COVID-19, albeit others failed to leave any positive impact and a few also became cont

Совпадение в полном тексте источника
… Doxycycline has also been shown to inhibit dengue virus replication in Vero cells by interacting with the virus's E protein [179] . It has exhibited activity against infection of Chikungunya virus [180] . …

Harnessing live vectors for cancer vaccines: Advancing therapeutic immunotherapy.

Cancer vaccines represent a promising approach within immunotherapies. These vaccines are tailored to target tumor-specific antigens, thereby offering a precision approach to cancer treatment. The key principles in developing therapeutic cancer vaccines include identifying appropriate vaccine targets and selecting effective vaccine delivery platforms. These delivery platforms are diverse and have evolved to enhance the immune response. This review explores live cancer vaccines and the biological entities involved. Live cancer vaccines leverage the use of various biological entities to stimulat

Совпадение в полном тексте источника
… Cells) and HX008 Injection in the Treatment of Melanoma 12/1/2020 No NCT6443 HX008 injection 13 Melanoma OH2 I/II Open and Incremental Phase I Clinical Trial of Recombinant Human GM-CSF Type II Herpes Simplex Virus (OH2) Injection (Vero Cells) in the Treatment of Advanced Solid Tumors 11/22/2018 No … Cell) I/II A Dose Ascending, Open Phase Ib/IIa Clinical Study to Evaluate the Safety, Tolerability, Pharmacokinetic Characteristics and Preliminary Efficacy of VG161 Combined With Nivolumab Injection in Subjects With Metastatic Gastric Cancer 11/17/2022 No NCT8925 Nivolumab 36 HCC oHSV-1 (Vero Cell) …

A review of potential suggested drugs for coronavirus disease (COVID-19) treatment.

The latest pandemic, coronavirus disease-2019 (COVID-19), is associated with high prevalence and easy transmission, which is expanding globally with no conventional treatment or vaccine. The new virus revealed 79% and 50% genomic similarities with severe acute respiratory syndrome coronavirus (SARS-CoV) and Middle East respiratory syndrome coronavirus (MERS-CoV), respectively. Accordingly, since the disease resists testing and adopting new therapeutics, repositioning pre-existing drugs may present a fast and attractive strategy with known safety, characteristics, and dosage used. However, they

Совпадение в полном тексте источника
… They treated infected Vero cells with IFN-α and β at different concentrations (0.49–250 IU/ml). The results indicated no detectable virus titers and determined the EC50 of IFN-α and β as 1.35 IU/ml and 0.75 IU/ml, respectively ( Mantlo et al., 2020 ). …

Can medicinal mushrooms have prophylactic or therapeutic effect against COVID-19 and its pneumonic superinfection and complicating inflammation?

Medicinal mushrooms have documented effects against different diseases, including infections and inflammatory disorders. The related Basidiomycota Agaricus blazei Murill (AbM), Hericium erinaceus (HE), and Grifola frondosa (GF) have been shown to exert antimicrobial activity against viral agents, Gram-positive and Gram-negative bacteria, and parasites in vitro and in vivo. Since the mechanism is immunomodulatory and not antibiotical, the mushrooms should be active against multi-drug resistant microbes as well. Moreover, since these Basidiomycota also have anti-inflammatory properties, they may

Совпадение в полном тексте источника
… Table 1 Antiviral effects of AbM, HE and GF ( ) Viral agent | Experimental model | Mushroom product | Antiviral effect/Mechanism | Author | References WEE virus | In vitro, cell cultures | AbM extract | Anti‐cytopathic effect induced by WEE virus in Vero cells | Sorimachi et al, 2001 | [ 25 ] Polio virus … Inhibition by Agaricus blazei Murill fractions of cytopathic effect induced by western equine encephalitis (WEE) virus on VERO cells in vitro. Biosci Biotechnol Biochem. 2001;65(7):1645‐1647. 10.1271/bbb.65.1645 26. Faccin LC, Benati F, Rincão VP, et al. …

TGFα контролирует контрольно-пропускные пункты в СНК, проживающих в них, и внедряет иммунные клетки в целях содействия урегулированию проблемы воспаления.

После острых повреждений в центральной нервной системе (КНС) взаимодействие микроглий, астроцитов и проникновение иммунных клеток принимает решение об их разрешении или хронизации. Однако этот перекрестный разговор CNS-интригинальный характерен плохо. Анализируя образцы цереброспайнальной жидкости (CSF) пациентов с множественным склерозом (MS), а также образцы CNS женских мышей с экспериментальным аутоиммунным энцефаломиелитом (EAE), т.е. С помощью механистических исследований in vitro, в парадигмах лечения vivo, последовательности scRNA, моделей генетического возмущения CRISPR-Cas9 и MRI в мо

Lambda-free light chain: A serum marker of dengue disease via NS3 protease-mediated antibody cleavage.

Dengue poses a significant global public health threat, with diverse clinical manifestations due to complex interactions between the host and the pathogen. Recent reports have highlighted elevated serum-free light chain (FLC) levels in viral infectious diseases. Hence, our study aimed to investigate serum FLC levels in dengue patients. The findings revealed elevated serum λ FLCs, which were associated with the severity of dengue. Receiver operating characteristic curve (ROC) analysis demonstrated that λ FLCs may serve as a serum marker for identifying dengue disease (AUC: 0.7825, sensitivity:

Совпадение в полном тексте источника
… Cell extracts from DENV-infected and uninfected Vero cells served as positive and negative controls, respectively. The optical density was read at 450 nm and calculated by subtracting the blank value (1% BSA). … Cell extracts of DENV-infected and uninfected Vero cells ( n = 3) served as positive and negative controls. (b) Recombinant DENV proteases NS2B-NS3pro and NS3pro were purified from Rosetta 2 competent cells. …

Ось MLKLOPTN регулирует вызванные герпесвирусом неврологические сиквелы.

КОЛИЧЕСТВО: герпес просторексовый вирус-1 (HSV-1) носит пожизненный характер и связан с неврологическими заболеваниями, такими, как множественный склероз (MS), однако основные механизмы в хосте остаются недостаточно понятными. МЕТОДЫ И РЕЗУЛЬТАТЫ: В настоящем исследовании изучается новая молекулярная динамика после заражения HSV-1, выявляется ключевая роль смешанного киназа-домена (MLKL). Помимо известной функции в некроптозе, было установлено, что MLKL контролирует перенос HSV-1 в ядро, жестко регулируемый Оптинёрином (Optineurin). Мы продемонстрировали существенное нормативное взаимодействие

Совпадение в полном тексте источника
… Media were collected at different time points post‐infection and titred on Vero cells. Briefly, primary incubation of collected media was performed with Opti‐MEM (Life Technologies) for 2 h. … Vero cells were then incubated with growth media containing 1% methylcellulose for 72 h followed by fixing with 100% methanol and staining with crystal violet solution. Formed plaques were counted and analysed. …

Pulmonary hypertension and the potential of 'drug' repurposing: A case for African medicinal plants.

AbstractPulmonary hypertension (PH) is a haemodynamic disorder in which elevated blood pressure in the pulmonary circulation is caused by abnormal vascular tone. Despite advances in treatment, PH mortality remains high, and drug repurposing has been proposed as a mitigating approach. This article reviews the studies that have investigated drug repurposing as a viable option for PH. We provide an overview of PH and highlight pharmaceutical drugs with repurposing potential, based on limited evidence of their mechanisms of action. Moreover, studies have demonstrated the benefits of medicinal plan

Совпадение в полном тексте источника
… Moringa oleifera hot water extract protects vero cells from hydrogen peroxide-induced oxidative stress by regulating mitochondria-mediated apoptotic pathway and Nrf2/HO-1 signaling. Foods. 2022;11(3):420. doi: 10.3390/foods11030420. 76. …

COVID-19 Vaccination in Cancer Patients: A Review Article.

Coronavirus disease 2019 (COVID-19) infection is caused by severe acute respiratory syndrome coronavirus 2. Adults with cancer are immunocompromised due to several causes including cancer itself and immunosuppressive therapy. Thus, cancer patients are more susceptible to develop COVID-19 infection. As COVID-19 vaccines became available, patients with cancer would benefit from receiving the vaccine. This article aims to review the recent evidences and recommendations about COVID-19 vaccination in cancer patients.Current guidelines recommend that patients with cancer should have the priority to

Treatment Considerations for Severe Osteoporosis in Older Adults.

Osteoporosis, a chronic metabolic bone disease, increases the predisposition to fragility fractures and is associated with considerable morbidity, high health care cost as well as mortality. An elevation in the rate of incident fragility fractures will be observed proportional with the increase in the number of older people worldwide. Severe osteoporosis is currently defined as having a bone density determined by dual-energy X-ray absorptiometry that is more than 2.5 standard deviations (SD) below the young adult mean with one or more past fractures due to osteoporosis. Nutrition, physical act

Current landscape of innovative drug development and regulatory support in China.

The global pharmaceutical landscape remains dynamic and competitive, shaped by advancements in first-in-class therapies and breakthrough technologies. The United States has maintained its leadership in first-in-class therapies and breakthrough technologies, driven by advanced regulatory pathways, significant multinational corporation investments, a robust Research and Development (R&D) workforce, and continuous technological innovation. Additionally, global impact of the Food and Drug Administration (FDA) is further amplified through collaborations like Project Orbis, which facilitates simulta

Воздействие витамина D на герпесвирусные инфекции.

Помимо своей классической роли в регулировании метаболизма кальция и фосфата, витамин D также оказывает значительное влияние на модуляцию иммунитета. Витамин D регулирует иммунную реакцию, переходя от воспламенительного состояния к более толерогенному one путем увеличения выброса антивоспалительных цитокинов при одновременном ослаблении регулирования проинфламаторных цитокинов. Таким образом, низкий уровень витамина D связан с повышенным риском возникновения аутоиммунных заболеваний, таких, как множественный склероз и тип 1 диабет. Кроме того, этот прохормон также способствует высвобождению хо

Совпадение в полном тексте источника
… LL-37 has been reported to exhibit antiviral properties in many cell lines, such as human corneal epithelial cells, by preventing HSV-1 from binding to the cells [ 78 ], as well as in Vero cells derived from the kidney of an African green monkey [ 79 ], and preventing HSV-2 infection in Vero cells, keratinocytes …

Потенциал для восстановления адамантских антивирусов COVID-19.

Несколько адамантанов приняли меры против коронавирусов. Амантадин, дивантадин, бананин и структурно связанные мемантины эффективны против человеческого дыхательного коронавируса HCoV-OC43Коронавирус говядины и острый острый респираторный синдром 1 (В тыс.SARS-CoV-1) и спиродановый амин эффективен против штамма коронавируса 229E. Исследования молекулярной стыковки показывают, что амантадин может блокировать вирусный канал белка Е, что приводит к нарушению распространения вируса. Кроме того, аналогии амантадина могут препятствовать проникновению вируса в камеру, повышая pH эндосомы и тем самым

The annual conference of National Cancer Institute - Cairo University "Bridging Gaps in Oncology" : InterContinental Citystars Cairo hotel. 3 - 5 November, 2021.

Аннотация не предоставлена источником. Откройте карточку для перехода к публикации.

Phytosome-Enhanced Secondary Metabolites for Improved Anticancer Efficacy: Mechanisms and Bioavailability Review.

PurposePhytosome technology, an advanced lipid-based delivery system, offers a promising solution for enhancing the bioavailability and therapeutic efficacy of secondary metabolites, particularly in cancer treatment. These metabolites, such as flavonoids, terpenoids, and alkaloids, possess significant anticancer potential but are often limited by poor solubility and low absorption. This review aims to investigate how phytosome encapsulation improves the pharmacokinetic profiles and anticancer effectiveness of these bioactive compounds.Patients and methodsThis comprehensive review is based on a