Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 91
Filtrar
1.
Cytokine ; 171: 156376, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37748333

RESUMO

Cancer involves cells' abnormal growth and ability to invade or metastasize to different body parts. Cancerous cells can divide uncontrollably and spread to other areas through the lymphatic or circulatory systems. Tumors form when malignant cells clump together in an uncontrolled manner. In this context, the cytokine interferon-gamma (IFN-γ) is crucial in regulating immunological responses, particularly malignancy. While IFN-γ is well-known for its potent anti-tumor effects by activating type 1 immunity, recent research has revealed its ability to suppress type 2 immunity, associated with allergy and inflammatory responses. This review aims to elucidate the intricate function of IFN-γ in inhibiting type 2 immune responses to cancer. We explore how IFN-γ influences the development and function of immune cells involved in type 2 immunity, such as mast cells, eosinophils, and T-helper 2 (Th2) cells. Additionally, we investigate the impact of IFN-mediated reduction of type 2 immunity on tumor development, metastasis, and the response to immunotherapeutic interventions. To develop successful cancer immunotherapies, it is crucial to comprehend the complex interplay between type 2 and type 1 immune response and the regulatory role of IFN-γ. This understanding holds tremendous promise for the development of innovative treatment approaches that harness the abilities of both immune response types to combat cancer. However, unraveling the intricate interplay between IFN-γ and type 2 immunity in the tumor microenvironment will be essential for achieving this goal.

2.
Br J Clin Pharmacol ; 88(8): 3562-3565, 2022 08.
Artigo em Inglês | MEDLINE | ID: mdl-35352842

RESUMO

COVID-19 has spread globally, affecting almost 160 million individuals. Elderly and pre-existing patients (such as diabetes, heart disease and asthma) seem more susceptible to severe illness with COVID-19. Roflumilast was licensed for usage in the European Union in July 2010 as a phosphodiesterase-4 (PDE4) inhibitor. Under preclinical studies, roflumilast has been shown to decrease bleomycin-induced lung fibrosis, lung hydroxyproline and right heart thickening. The current study reviewed existing data that the PDE-4 inhibitor, a roflumilast, protects renal tissues and other major organ systems after COVID-19 infection by decreasing immune cell infiltration. These immune-balancing effects of roflumilast were related to a decrease in oxidative and inflammatory burden, caspase-3 suppression and increased protein kinase A (PKA)/cyclic A.M.P. (cAMP) levels in renal and other organ tissue.


Assuntos
Tratamento Farmacológico da COVID-19 , Inibidores da Fosfodiesterase 4 , Idoso , Aminopiridinas/efeitos adversos , Benzamidas , Ciclopropanos/efeitos adversos , Humanos , Inflamação/tratamento farmacológico , Inibidores da Fosfodiesterase 4/efeitos adversos , SARS-CoV-2
3.
Molecules ; 27(9)2022 Apr 29.
Artigo em Inglês | MEDLINE | ID: mdl-35566187

RESUMO

Parkinson's disease (PD) and Alzheimer's disease (AD) are neurodegenerative disorders that have emerged as among the serious health problems of the 21st century. The medications currently available to treat AD and PD have limited efficacy and are associated with side effects. Natural products are one of the most vital and conservative sources of medicines for treating neurological problems. Karanjin is a furanoflavonoid, isolated mainly from Pongamia pinnata with several medicinal plants, and has been reported for numerous health benefits. However, the effect of karanjin on AD and PD has not yet been systematically investigated. To evaluate the neuroprotective effect of karanjin, extensive in silico studies starting with molecular docking against five putative targets for AD and four targets for PD were conducted. The findings were compared with three standard drugs using Auto Dock 4.1 and Molegro Virtual Docker software. Additionally, the physiochemical properties (Lipinski rule of five), drug-likeness and parameters including absorption, distribution, metabolism, elimination and toxicity (ADMET) profiles of karanjin were also studied. The molecular dynamics (MD) simulations were performed with two selective karanjin docking complexes to analyze the dynamic behaviors and binding free energy at 100 ns time scale. In addition, frontier molecular orbitals (FMOs) and density-functional theory (DFT) were also investigated from computational quantum mechanism perspectives using the Avogadro-ORCA 1.2.0 platform. Karanjin complies with all five of Lipinski's drug-likeness rules with suitable ADMET profiles for therapeutic use. The docking scores (kcal/mol) showed comparatively higher potency against AD and PD associated targets than currently used standard drugs. Overall, the potential binding affinity from molecular docking, static thermodynamics feature from MD-simulation and other multiparametric drug-ability profiles suggest that karanjin could be considered as a suitable therapeutic lead for AD and PD treatment. Furthermore, the present results were strongly correlated with the earlier study on karanjin in an Alzheimer's animal model. However, necessary in vivo studies, clinical trials, bioavailability, permeability and safe dose administration, etc. must be required to use karanjin as a potential drug against AD and PD treatment, where the in silico results are more helpful to accelerate the drug development.


Assuntos
Doença de Alzheimer , Doença de Parkinson , Doença de Alzheimer/tratamento farmacológico , Animais , Benzopiranos , Desenho de Fármacos , Simulação de Acoplamento Molecular , Simulação de Dinâmica Molecular , Doença de Parkinson/tratamento farmacológico
4.
Molecules ; 27(8)2022 Apr 15.
Artigo em Inglês | MEDLINE | ID: mdl-35458770

RESUMO

Bisphenol A (BPA), a well-known xenoestrogen, is commonly utilised in the production of polycarbonate plastics. Based on the existing evidence, BPA is known to induce neurotoxicity and behavioural issues. Flavonoids such as silibinin and naringenin have been shown to have biological activity against a variety of illnesses. The current research evaluates the neuropharmacological effects of silibinin and naringenin in a zebrafish model against neurotoxicity and oxidative stress caused by Bisphenol A. In this study, a novel tank diving test (NTDT) and light−dark preference test (LDPT) were used in neurobehavioural investigations. The experimental protocol was planned to last 21 days. The neuroprotective effects of silibinin (10 µM) and naringenin (10 µM) in zebrafish (Danio rerio) induced by BPA (17.52 µM) were investigated. In the brine shrimp lethality assay, the 50% fatal concentrations (LC50) were 34.10 µg/mL (silibinin) and 91.33 µg/mL (naringenin) compared to the standard potassium dichromate (13.15 µg/mL). The acute toxicity investigation found no mortality or visible abnormalities in the silibinin- and naringenin-treated groups (LC50 > 100 mg/L). The altered scototaxis behaviour in LDPT caused by BPA was reversed by co-supplementation with silibinin and naringenin, as shown by decreases in the number of transitions to the light zone and the duration spent in the light zone. Our findings point to BPA's neurotoxic potential in causing altered scototaxis and bottom-dwelling behaviour in zebrafish, as well as the usage of silibinin and naringenin as potential neuroprotectants.


Assuntos
Fármacos Neuroprotetores , Síndromes Neurotóxicas , Animais , Compostos Benzidrílicos/toxicidade , Desenho de Fármacos , Flavanonas , Flavonoides , Fármacos Neuroprotetores/farmacologia , Síndromes Neurotóxicas/tratamento farmacológico , Síndromes Neurotóxicas/etiologia , Fenóis , Silibina/farmacologia , Peixe-Zebra
5.
Molecules ; 27(1)2022 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-35011497

RESUMO

Genistein is a naturally occurring polyphenolic molecule in the isoflavones group which is well known for its neuroprotection. In this review, we summarize the efficacy of genistein in attenuating the effects of memory impairment (MI) in animals. Scopus, PubMed, and Web of Science databases were used to find the relevant articles and discuss the effects of genistein in the brain, including its pharmacokinetics, bioavailability, behavioral effects, and some of the potential mechanisms of action on memory in several animal models. The results of the preclinical studies highly suggested that genistein is highly effective in enhancing the cognitive performance of the MI animal models, specifically in the memory domain, including spatial, recognition, retention, and reference memories, through its ability to reduce oxidative stress and attenuate neuroinflammation. This review also highlighted challenges and opportunities to improve the drug delivery of genistein for treating MI. Along with that, the possible structural modifications and derivatives of genistein to improve its physicochemical and drug-likeness properties are also discussed. The outcomes of the review proved that genistein can enhance the cognitive performance and ameliorate MI in different preclinical studies, thus indicating its potential as a natural lead for the design and development of a novel neuroprotective drug.


Assuntos
Encéfalo/metabolismo , Genisteína/uso terapêutico , Transtornos da Memória/tratamento farmacológico , Doenças Neuroinflamatórias/tratamento farmacológico , Fármacos Neuroprotetores/uso terapêutico , Animais , Desenho de Fármacos , Humanos , Transtornos da Memória/metabolismo , Doenças Neuroinflamatórias/metabolismo
6.
Molecules ; 27(3)2022 Jan 20.
Artigo em Inglês | MEDLINE | ID: mdl-35163934

RESUMO

Cardiovascular disorders (CVDs) are the leading risk factor for death worldwide, and research into the processes and treatment regimens has received a lot of attention. Tilianin is a flavonoid glycoside that can be found in a wide range of medicinal plants and is most commonly obtained from Dracocephalum moldavica. Due to its extensive range of biological actions, it has become a well-known molecule in recent years. In particular, numerous studies have shown that tilianin has cardioprotective properties against CVDs. Hence, this review summarises tilianin's preclinical research in CVDs, as well as its mechanism of action and opportunities in future drug development. The physicochemical and drug-likeness properties, as well as the toxicity profile, were also highlighted. Tilianin can be a natural lead molecule in the therapy of CVDs such as coronary heart disease, angina pectoris, hypertension, and myocardial ischemia, according to scientific evidence. Free radical scavenging, inflammation control, mitochondrial function regulation, and related signalling pathways are all thought to play a role in tilianin's cardioprotective actions. Finally, we discuss tilianin-derived compounds, as well as the limitations and opportunities of using tilianin as a lead molecule in drug development for CVDs. Overall, the scientific evidence presented in this review supports that tilianin and its derivatives could be used as a lead molecule in CVD drug development initiatives.


Assuntos
Produtos Biológicos/farmacologia , Doenças Cardiovasculares/tratamento farmacológico , Desenho de Fármacos , Desenvolvimento de Medicamentos , Flavonoides/farmacologia , Glicosídeos/farmacologia , Animais , Humanos
7.
Molecules ; 27(3)2022 Jan 23.
Artigo em Inglês | MEDLINE | ID: mdl-35163999

RESUMO

Kirenol, a potential natural diterpenoid molecule, is mainly found in Sigesbeckia species. Kirenol has received a lot of interest in recent years due to its wide range of pharmacological actions. In particular, it has a significant ability to interact with a wide range of molecular targets associated with inflammation. In this review, we summarise the efficacy and safety of kirenol in reducing inflammation, as well as its potential mechanisms of action and opportunities in future drug development. Based on the preclinical studies reported earlier, kirenol has a good therapeutic potential against inflammation involved in multiple sclerosis, inflammatory bowel disorders, diabetic wounds, arthritis, cardiovascular disease, bone damage, and joint disorders. We also address the physicochemical and drug-like features of kirenol, as well as the structurally modified kirenol-derived molecules. The inhibition of pro-inflammatory cytokines, reduction in the nuclear factor kappa-B (NF-κB), attenuation of antioxidant enzymes, stimulation of heme-oxygenase-1 (HO-1) expression, and nuclear factor erythroid 2-related factor 2 (Nrf2) phosphorylation are among the molecular mechanisms contributing to kirenol's anti-inflammatory actions. Furthermore, this review also highlights the challenges and opportunities to improve the drug delivery of kirenol for treating inflammation. According to the findings of this review, kirenol is an active molecule against inflammation in numerous preclinical models, indicating a path to using it for new drug discovery and development in the treatment of a wide range of inflammations.


Assuntos
Anti-Inflamatórios/farmacologia , Produtos Biológicos/farmacologia , Diterpenos/farmacologia , Desenho de Fármacos , Desenvolvimento de Medicamentos , Inflamação/tratamento farmacológico , Animais , Citocinas/metabolismo , Humanos
8.
Molecules ; 27(6)2022 Mar 21.
Artigo em Inglês | MEDLINE | ID: mdl-35335393

RESUMO

Sarsasapogenin is a natural steroidal sapogenin molecule obtained mainly from Anemarrhena asphodeloides Bunge. Among the various phytosteroids present, sarsasapogenin has emerged as a promising molecule due to the fact of its diverse pharmacological activities. In this review, the chemistry, biosynthesis and pharmacological potentials of sarsasapogenin are summarised. Between 1996 and the present, the relevant literature regarding sarsasapogenin was obtained from scientific databases including PubMed, ScienceDirect, Scopus, and Google Scholar. Overall, sarsasapogenin is a potent molecule with anti-inflammatory, anticancer, antidiabetic, anti-osteoclastogenic and neuroprotective activities. It is also a potential molecule in the treatment for precocious puberty. This review also discusses the metabolism, pharmacokinetics and possible structural modifications as well as obstacles and opportunities for sarsasapogenin to become a drug molecule in the near future. More comprehensive preclinical studies, clinical trials, drug delivery, formulations of effective doses in pharmacokinetics studies, evaluation of adverse effects and potential synergistic effects with other drugs need to be thoroughly investigated to make sarsasapogenin a potential molecule for future drug development.


Assuntos
Anemarrhena , Espirostanos , Anemarrhena/química , Desenho de Fármacos , Espirostanos/química , Espirostanos/farmacologia
9.
Molecules ; 27(15)2022 Aug 05.
Artigo em Inglês | MEDLINE | ID: mdl-35956923

RESUMO

Urinary tract infections (UTIs) are becoming more common, requiring extensive protection from antimicrobials. The global expansion of multi-drug resistance uropathogens in the past decade emphasizes the necessity of newer antibiotic treatments and prevention strategies for UTIs. Medicinal plants have wide therapeutic applications in both the prevention and management of many ailments. Bacopa monnieri is a medicinal plant that is found in the warmer and wetlands regions of the world. It has been used in Ayurvedic systems for centuries. The present study aimed to investigate the antibacterial potential of the extract of B. monnieri leaves and its bioactive molecules against UTIs that are caused by Klebsiella pneumoniae and Proteus mirabilis. This in vitro experimental study was conducted by an agar well diffusion method to evaluate the antimicrobial effect of 80% methanol, 96% ethanol, and aqueous extracts of B. monnieri leaves on uropathogens. Then, further screening of their phytochemicals was carried out using standard methods. To validate the bioactive molecules and the microbe interactions, AutoDock Vina software was used for molecular docking with the Klebsiella pneumoniae fosfomycin resistance protein (5WEW) and the Zn-dependent receptor-binding domain of Proteus mirabilis MR/P fimbrial adhesin MrpH (6Y4F). Toxicity prediction and drug likeness were predicted using ProTox-II and Molinspiration, respectively. A molecular dynamics (MD) simulation was carried out to study the protein ligand complexes. The methanolic leaves extract of B. monnieri revealed a 22.3 mm ± 0.6 mm to 25.0 mm ± 0.5 mm inhibition zone, while ethanolic extract seemed to produce 19.3 mm ± 0.8 mm to 23.0 mm ± 0.4 mm inhibition zones against K. pneumoniae with the use of increasing concentrations. In the case of P. mirabilis activity, the methanolic extracts showed a 21.0 mm ± 0.8 mm to 24.0 mm ± 0.6 mm zone of inhibition and the ethanol extract produced a 17.0 mm ± 0.9 mm to 23.0 mm ± 0.7 mm inhibition zone with increasing concentrations. Carbohydrates, flavonoids, saponin, phenolic, and terpenoid were common phytoconstituents identified in B. monnieri extracts. Oroxindin showed the best interactions with the binding energies with 5WEW and 6Y4F, -7.5 kcal/mol and -7.4 kcal/mol, respectively. Oroxindin, a bioactive molecule, followed Lipinski's rule of five and exhibited stability in the MD simulation. The overall results suggest that Oroxindin from B. monnieri can be a potent inhibitor for the effective killing of K. pneumoniae and P. mirabilis. Additionally, its safety has been established, indicating its potential for future drug discovery and development in the treatment for UTIs.


Assuntos
Bacopa , Infecções Urinárias , Antibacterianos/farmacologia , Bacopa/química , Etanol , Klebsiella pneumoniae , Simulação de Acoplamento Molecular , Extratos Vegetais/química , Extratos Vegetais/farmacologia , Proteus mirabilis , Infecções Urinárias/tratamento farmacológico , Infecções Urinárias/microbiologia
10.
Molecules ; 27(16)2022 Aug 09.
Artigo em Inglês | MEDLINE | ID: mdl-36014304

RESUMO

Viniferin is a resveratrol derivative. Resveratrol is the most prominent stilbenoid synthesized by plants as a defense mechanism in response to microbial attack, toxins, infections or UV radiation. Different forms of viniferin exist, including alpha-viniferin (α-viniferin), beta-viniferin (ß-viniferin), delta-viniferin (δ-viniferin), epsilon-viniferin (ε-viniferin), gamma-viniferin (γ-viniferin), R-viniferin (vitisin A), and R2-viniferin (vitisin B). All of these forms exhibit a range of important biological activities and, therefore, have several possible applications in clinical research and future drug development. In this review, we present a comprehensive literature search on the chemistry and biosynthesis of and the diverse studies conducted on viniferin, especially with regards to its anti-inflammatory, antipsoriasis, antidiabetic, antiplasmodic, anticancer, anti-angiogenic, antioxidant, anti-melanogenic, neurodegenerative effects, antiviral, antimicrobial, antifungal, antidiarrhea, anti-obesity and anthelminthic activities. In addition to highlighting its important chemical and biological activities, coherent and environmentally acceptable methods for establishing vinferin on a large scale are highlighted to allow the development of further research that can help to exploit its properties and develop new phyto-pharmaceuticals. Overall, viniferin and its derivatives have the potential to be the most effective nutritional supplement and supplementary medication, especially as a therapeutic approach. More researchers will be aware of viniferin as a pharmaceutical drug as a consequence of this review, and they will be encouraged to investigate viniferin and its derivatives as pharmaceutical drugs to prevent future health catastrophes caused by a variety of serious illnesses.


Assuntos
Estilbenos , Antioxidantes/farmacologia , Antioxidantes/uso terapêutico , Antivirais , Descoberta de Drogas , Preparações Farmacêuticas , Resveratrol/farmacologia , Estilbenos/química , Estilbenos/farmacologia , Estilbenos/uso terapêutico
11.
Drug Dev Res ; 82(8): 1075-1078, 2021 12.
Artigo em Inglês | MEDLINE | ID: mdl-34469011

RESUMO

One of the most remarkable results in 2019 is the reduced prevalence and death of children from coronavirus infection (COVID-19). In 2019, a worldwide pandemic impacted around 0.1 billion individuals, with over 3.5 million mortality reported in the literature. There is minimal knowledge on SARS-CoV-2 infection immunological responses in kids. Studies have been focused mostly on adults and children since the course of pediatric sickness is often short. In adults, severe COVID-19 is related to an excessive inflammatory reaction. Macrophages and monocytes are well known to contribute to this systemic response, although numerous lines are indicative of the importance of neutrophils. An increased number of neutrophils and neutrophil to lymphocyte ratios are early signs of SARS-CoV-2 and a worse prognosis. In this study that it is crucial to monitor PAR2 and PAR4 expression and function (since nursing children have elevated levels) and the inhibiting the normal physiology through the use of anticoagulants may exacerbate the problem in adults. Thus, in COVID-19 infection, we propose the use of antiplatelet (thromboxane A2 inhibitors), if required rather than anticoagulants (FXa and thrombin Inhibitors).


Assuntos
COVID-19/metabolismo , Receptor PAR-2/metabolismo , Receptores de Trombina/metabolismo , Adulto , Fatores Etários , Anticoagulantes/farmacologia , Anticoagulantes/uso terapêutico , COVID-19/imunologia , Criança , Humanos , Contagem de Linfócitos , Neutrófilos/imunologia , Inibidores da Agregação Plaquetária/farmacologia , Inibidores da Agregação Plaquetária/uso terapêutico , Tratamento Farmacológico da COVID-19
12.
Pak J Pharm Sci ; 34(4): 1397-1401, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-34799313

RESUMO

The current research was aimed to isolate newer phyto-metabolites from rhizomes of Alpinia galanga plant. Study involved preparation of Alpinia galanga rhizome methanolic extract, followed by normal phase column chromatography assisted isolation of new phytometabolites (using different combinations of chloroform and methanol), and characterization (by UV, FTIR, 13C-NMR, 1H-NMR, COSY, DEPT and Mass spectrometry). The isolation and characterization experiment offered two phytometabolites: an ester (Ag-1) and tetrahydronapthalene type lactone (Ag-2). Present study concludes and reports the two phytometabolites, benzyl myristate (Ag-1) and 3-Methyl-6α, 8ß-diol-7-carboxylic acid tetralin-11, 9ß-olide (Ag-2) for the first time in Alpinia galanga rhizome. The study recommends that these phytometabolites Ag-1 and Ag-2 can be utilized as effective analytical biomarkers for identification, purity and quality control of this plant in future.


Assuntos
Alpinia/química , Extratos Vegetais/isolamento & purificação , Rizoma/química , Compostos de Benzil/química , Compostos de Benzil/isolamento & purificação , Espectroscopia de Ressonância Magnética , Estrutura Molecular , Miristatos/química , Miristatos/isolamento & purificação , Compostos Fitoquímicos/química , Compostos Fitoquímicos/isolamento & purificação , Extratos Vegetais/química
13.
Bioorg Chem ; 95: 103519, 2020 01.
Artigo em Inglês | MEDLINE | ID: mdl-31884140

RESUMO

A set of two series of 1,3,4-oxadiazole (11a-n) and 1,2,4-Triazole (12a, c, e, g, h, j-n) based topsentin analogues were prepared by replacing imizadole moiety of topsentin through a multistep synthesis starting from indole. All the compounds synthesized were submitted for single dose (10 µM) screening against a NCI panel of 60-human cancer cell lines. Among all cancer cell lines, colon (HCC-2998) and Breast (MCF-7, T-47D) cancer cell lines were found to be more susceptible for this class of compounds. Among the compounds tested, compounds 11a, 11d, 11f, 12e and 12h, were exhibited good anti-proliferative activity against various cancer cell lines. Compounds 11d, 12e and 12h demonstrated better activity with IC50 2.42 µM, 3.06 µM, and 3.30 µM respectively against MCF-7 human cancer cell line than that of the standard drug doxorubicin IC50 6.31 µM. Furthermore, 11d induced cell cycle arrest at G0/G1 phase and also disrupted mitochondrial membrane potential with reducing cell migration potential of MCF-7 cells in dose dependent manner. In vitro microtubule polymerization assays found that compound 11d disrupt tubulin dynamics by inhibiting tubulin polymerization with IC50 3.89 µM compared with standard nocodazole (IC50 2.49 µM). In silico docking studies represented that 11d was binding at colchicine binding site of ß-tubulin. Compound 11d emerged as lead molecule from the library of compounds tested and this may serve as a template for further drug discovery.


Assuntos
Antineoplásicos/farmacologia , Desenho de Fármacos , Imidazóis/farmacologia , Indóis/farmacologia , Oxidiazóis/farmacologia , Triazóis/farmacologia , Tubulina (Proteína)/metabolismo , Antineoplásicos/síntese química , Antineoplásicos/química , Ciclo Celular/efeitos dos fármacos , Proliferação de Células/efeitos dos fármacos , Relação Dose-Resposta a Droga , Ensaios de Seleção de Medicamentos Antitumorais , Humanos , Imidazóis/química , Indóis/química , Células MCF-7 , Estrutura Molecular , Oxidiazóis/síntese química , Oxidiazóis/química , Relação Estrutura-Atividade , Triazóis/síntese química , Triazóis/química , Cicatrização/efeitos dos fármacos
14.
Mar Drugs ; 18(6)2020 Jun 24.
Artigo em Inglês | MEDLINE | ID: mdl-32599909

RESUMO

Peptides are distinctive biomacromolecules that demonstrate potential cytotoxicity and diversified bioactivities against a variety of microorganisms including bacteria, mycobacteria, and fungi via their unique mechanisms of action. Among broad-ranging pharmacologically active peptides, natural marine-originated thiazole-based oligopeptides possess peculiar structural features along with a wide spectrum of exceptional and potent bioproperties. Because of their complex nature and size divergence, thiazole-based peptides (TBPs) bestow a pivotal chemical platform in drug discovery processes to generate competent scaffolds for regulating allosteric binding sites and peptide-peptide interactions. The present study dissertates on the natural reservoirs and exclusive structural components of marine-originated TBPs, with a special focus on their most pertinent pharmacological profiles, which may impart vital resources for the development of novel peptide-based therapeutic agents.


Assuntos
Produtos Biológicos/química , Produtos Biológicos/farmacologia , Peptídeos/química , Tiazóis/química , Animais , Organismos Aquáticos , Descoberta de Drogas , Humanos , Estrutura Molecular
15.
Pak J Pharm Sci ; 33(4): 1739-1745, 2020 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-33583811

RESUMO

The outbreak of CoVID-19 infection rapidly increases worldwide. Most of the continents affecting from CoVID-19 and still widening its burden disease (Jones DS, 2020; Lai et al., 2020). Along with its fatality rates, CoVID-19 has caused physiological disturbances in the society and termed as "coronophobia". CoVID-19 with renal failure, severe pneumonia and respiratory syndrome patients have been reported to increase the severity of disease conditions (Sevim et al., 2020). Also, CoVID-19 with cancer patients increase the higher risk of infections. Currently, there is no vaccine or specific treatment against CoVID-19 and drug research centres continuously investigating the potential drug against CoVID-19 (Osama and Amer, 2020). For the past 20 years two major coronavirus epidemics have occurred in public includes SARS-CoV approximately 8000 cases and 800 deaths and MERS-CoV 2,500 cases and 800 deaths and these continuing sporadically (Cascella et al., 2020).


Assuntos
COVID-19/epidemiologia , Controle de Doenças Transmissíveis , Fatores Etários , COVID-19/mortalidade , COVID-19/prevenção & controle , COVID-19/transmissão , Comorbidade , Humanos , Período de Incubação de Doenças Infecciosas , Prevalência , Saúde Pública , SARS-CoV-2 , Fatores Sexuais
17.
Pathol Res Pract ; 259: 155346, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38781762

RESUMO

Osteosarcoma (OS) is a bone cancer which stems from several sources and presents with diverse clinical features, making evaluation and treatment difficult. Chemotherapy tolerance and restricted treatment regimens hinder progress in survival rates, requiring new and creative therapeutic strategies. The Wnt/ß-catenin system has been recognised as an essential driver of OS development, providing potential avenues for therapy. Non-coding RNAs (ncRNAs), such as circular RNAs (circRNAs), long non-coding RNAs (lncRNAs), and microRNAs (miRNAs), are essential in modulating the Wnt/ß-catenin cascade in OS. MiRNAs control the system by targeting vital elements, while lncRNAs and circRNAs interact with system genes, impacting OS growth and advancement. This paper thoroughly analyses the intricate interplay between ncRNAs and the Wnt/ß-catenin cascade in OS. We examine how uncontrolled levels of miRNAs, lncRNAs, and circRNAs lead to an abnormal Wnt/ß-catenin network, which elevates the development, spread, and susceptibility to the treatment of OS. We emphasise the potential of ncRNAs as diagnostic indicators and avenues for treatment in OS care. The review offers valuable insights for academics and clinicians studying OS aetiology and creating new treatment techniques for the ncRNA-Wnt/ß-catenin cascade. Utilising the oversight roles of ncRNAs in the Wnt/ß-catenin system shows potential for enhancing the outcomes of patients and progressing precision medicine in OS therapy.


Assuntos
Biomarcadores Tumorais , Neoplasias Ósseas , Osteossarcoma , RNA não Traduzido , Via de Sinalização Wnt , Humanos , Osteossarcoma/genética , Osteossarcoma/patologia , Osteossarcoma/metabolismo , Osteossarcoma/tratamento farmacológico , Via de Sinalização Wnt/genética , Neoplasias Ósseas/genética , Neoplasias Ósseas/patologia , Neoplasias Ósseas/metabolismo , Neoplasias Ósseas/tratamento farmacológico , Biomarcadores Tumorais/genética , Biomarcadores Tumorais/metabolismo , RNA não Traduzido/genética , RNA não Traduzido/metabolismo , MicroRNAs/genética , MicroRNAs/metabolismo , RNA Longo não Codificante/genética , RNA Longo não Codificante/metabolismo , RNA Circular/genética , RNA Circular/metabolismo , beta Catenina/genética , beta Catenina/metabolismo , Regulação Neoplásica da Expressão Gênica
18.
SAGE Open Med Case Rep ; 12: 2050313X241249622, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38694904

RESUMO

Umbilical cord-derived mesenchymal stem cells for regenerative therapy are a promising treatment option for chronic illnesses. Umbilical cord-derived mesenchymal stem cells offer several advantages over other sources, which makes them an attractive option in tissue repair and regeneration. This clinical study describes a 1-year follow-up on the safety and tolerance of umbilical cord-derived mesenchymal stem cell therapy on nine patients in Malaysia. Patients were assessed for adverse effects, and liver function tests were carried out on both pre- and post-treatments. Umbilical cord-derived mesenchymal stem cells' effectiveness and safety were assessed by follow-up evaluations. All nine patients responded positively towards umbilical cord-derived mesenchymal stem cell therapy, without any adverse effects. After umbilical cord-derived mesenchymal stem cell therapy, a significant improvement was observed in liver functioning test outcomes, as haematological parameters and tumour markers were stable. The present study concludes that umbilical cord-derived mesenchymal stem cell therapy is well tolerated by Malaysian patients; however, further clinical screening must be done over a large number of patients population.

19.
Pathol Res Pract ; 253: 155037, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38160482

RESUMO

Ulcerative colitis (UC) is a persistent inflammatory condition affecting the colon's mucosal lining, leading to chronic bowel inflammation. Despite extensive research, the precise molecular mechanisms underlying UC pathogenesis remain elusive. NcRNAs form a category of functional RNA molecules devoid of protein-coding capacity. They have recently surfaced as pivotal modulators of gene expression and integral participants in various pathological processes, particularly those related to inflammatory disorders. The diverse classes of ncRNAs, encompassing miRNAs, circRNAs, and lncRNAs, have been implicated in UC. It highlights their involvement in key UC-related processes, such as immune cell activation, epithelial barrier integrity, and the production of pro-inflammatory mediators. ncRNAs have been identified as potential biomarkers for UC diagnosis and monitoring disease progression, offering promising avenues for personalized medicine. This approach may pave the way for novel, more specific treatments with reduced side effects, addressing the current limitations of conventional therapies. A comprehensive understanding of the interplay between ncRNAs and UC will advance our knowledge of the disease, potentially leading to more effective and personalized treatments for patients suffering from this debilitating condition. This review explores the pivotal role of ncRNAs in the context of UC, shedding light on their possible targets for diagnosis, prognosis, and therapeutic interventions.


Assuntos
Colite Ulcerativa , MicroRNAs , Humanos , Colite Ulcerativa/diagnóstico , Colite Ulcerativa/genética , Colite Ulcerativa/terapia , MicroRNAs/genética , RNA não Traduzido/genética , Inflamação , Biomarcadores/metabolismo
20.
Pathol Res Pract ; 254: 155134, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38277746

RESUMO

Prostate cancer (PCa) is an important worldwide medical concern, necessitating a greater understanding of the molecular processes driving its development. The Wnt/-catenin signaling cascade is established as a central player in PCa pathogenesis, and recent research emphasizes the critical involvement of non-coding RNAs (ncRNAs) in this scenario. This in-depth study seeks to give a thorough examination of the complex relationship between ncRNAs and the Wnt/ß-catenin system in PCa. NcRNAs, such as circular RNAs (circRNAs), long ncRNAs (lncRNAs), and microRNAs (miRNAs), have been recognized as essential regulators that modulate numerous facets of the Wnt/ß-catenin network. MiRNAs have been recognized as targeting vital elements of the process, either enhancing or inhibiting signaling, depending on their specific roles and targets. LncRNAs participate in fine-tuning the Wnt/ß-catenin network as a result of complicated interplay with both upstream and downstream elements. CircRNAs, despite being a relatively recent addition to the ncRNA family, have been implicated in PCa, influencing the Wnt/ß-catenin cascade through diverse mechanisms. This article encompasses recent advances in our comprehension of specific ncRNAs that participate in the Wnt/ß-catenin network, their functional roles, and clinical relevance in PCa. We investigate their use as screening and predictive indicators, and targets for treatment. Additionally, we delve into the interplay between Wnt/ß-catenin and other signaling networks in PCa and the role of ncRNAs within this complex network. As we unveil the intricate regulatory functions of ncRNAs in the Wnt/ß-catenin cascade in PCa, we gain valuable insights into the disease's pathogenesis. The implementation of these discoveries in practical applications holds promise for more precise diagnosis, prognosis, and targeted therapeutic approaches, ultimately enhancing the care of PCa patients. This comprehensive review underscores the evolving landscape of ncRNA research in PCa and the potential for innovative interventions in the battle against this formidable malignancy.


Assuntos
MicroRNAs , Neoplasias da Próstata , RNA Longo não Codificante , Masculino , Humanos , Via de Sinalização Wnt/genética , beta Catenina/metabolismo , RNA Longo não Codificante/genética , RNA Circular/genética , Neoplasias da Próstata/patologia , MicroRNAs/genética
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA