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1.
Mol Biotechnol ; 2024 Apr 02.
Artículo en Inglés | MEDLINE | ID: mdl-38565775

RESUMEN

In the dynamic landscape of targeted therapeutics, drug discovery has pivoted towards understanding underlying disease mechanisms, placing a strong emphasis on molecular perturbations and target identification. This paradigm shift, crucial for drug discovery, is underpinned by big data, a transformative force in the current era. Omics data, characterized by its heterogeneity and enormity, has ushered biological and biomedical research into the big data domain. Acknowledging the significance of integrating diverse omics data strata, known as multi-omics studies, researchers delve into the intricate interrelationships among various omics layers. This review navigates the expansive omics landscape, showcasing tailored assays for each molecular layer through genomes to metabolomes. The sheer volume of data generated necessitates sophisticated informatics techniques, with machine-learning (ML) algorithms emerging as robust tools. These datasets not only refine disease classification but also enhance diagnostics and foster the development of targeted therapeutic strategies. Through the integration of high-throughput data, the review focuses on targeting and modeling multiple disease-regulated networks, validating interactions with multiple targets, and enhancing therapeutic potential using network pharmacology approaches. Ultimately, this exploration aims to illuminate the transformative impact of multi-omics in the big data era, shaping the future of biological research.

2.
Mol Biotechnol ; 2023 Sep 28.
Artículo en Inglés | MEDLINE | ID: mdl-37768502

RESUMEN

Lung adenocarcinoma (LUAD) is one of the most prevalent and leading causes of cancer deaths globally, with limited diagnostic and clinically significant therapeutic targets. Identifying the genes and processes involved in developing and progressing LUAD is crucial for developing effective targeted therapeutics and improving patient outcomes. Therefore, the study aimed to explore the RNA sequencing data of LUAD from The Cancer Genome Atlas (TCGA) and gene expression profile datasets involving GSE10072, GSE31210, and GSE32863 from the Gene Expression Omnibus (GEO) databases. The differential gene expression and the downstream analysis determined clinically significant biomarkers using a network-based approach. These therapeutic targets predominantly enriched the dysregulation of mitotic cell cycle regulation and revealed the co-overexpression of Aurora-A Kinase (AURKA) and Targeting Protein for Xklp2 (TPX2) with high survival risk in LUAD patients. The hydrophobic residues of the AURKA-TPX2 interaction were considered as the target site to block the autophosphorylation of AURKA during the mitotic cell cycle. The tyrosine kinase inhibitor (TKI) dacomitinib demonstrated the strong binding potential to hinder TPX2, shielding the AURKA destabilization. This in silico study lays the foundation for repurposing targeted therapeutic options to impede the Protein-Protein Interactions (PPIs) in LUAD progression and aid in future translational investigations.

4.
PLoS One ; 14(3): e0209948, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-30893342

RESUMEN

BACKGROUND: The application of polymeric materials in medical industry has grown drastically in the last two decades due to their various advantages compared to existing materials. The present research work emphases on the sol-gel technique to formulate the polymethyl methyl acrylate/polystyrene/silica composite membrane. METHODS: The characteristic of the composite was investigated through modern state art of instrumentation. RESULTS: The functional groups attached to the polymer was absorbed by FTIR. The FTIR spectrum confirm that the blend was mixed thoroughly and the formation of unite intimately between the polymers. The membranes were observed by SEM for its surface homogeneity which depends upon the composition of the two blending polymers. The captured SEM images showed the formation of microcracks on the surface, which was evidently controlled by varying the constituent polymer ratios. The prepared blend membranes with 2:1 ratio of PMMA/PS/Si displayed higher water uptake compared to other blended membranes. The composite membranes had good hydroxyl apatite growth in SBF solution. Furthermore, the in vitro cytotoxicity studies carried out by MTT method, using RAW macrophage cells showed that all the samples exhibited excellent cell viability. CONCLUSION: The inflammatory response of composite with equal concentration of PMMA-PS were performed and observed no inflammation in comparison with control and other tested concentrations.


Asunto(s)
Cementos para Huesos/farmacología , Polimetil Metacrilato/farmacología , Poliestirenos/química , Dióxido de Silicio/química , Animales , Cementos para Huesos/química , Supervivencia Celular , Sistemas de Liberación de Medicamentos , Ensayo de Materiales , Membranas Artificiales , Ratones , Microscopía Electrónica de Rastreo , Nanocompuestos , Polimetil Metacrilato/química , Células RAW 264.7 , Espectroscopía Infrarroja por Transformada de Fourier , Propiedades de Superficie
5.
J Ethnopharmacol ; 209: 82-90, 2017 Sep 14.
Artículo en Inglés | MEDLINE | ID: mdl-28733192

RESUMEN

Curcuma caesia Roxb. (Black turmeric), a perennial herb of the family Zingiberaceae is indigenous to India. C. caesia is used as a spice, food preservative and coloring agent commonly in the Indian subcontinent. Functional parametric pharmacological evaluations like drug ability and toxicity profile of this endangered species is poorly documented. In our present study, among all the extracts of dried C. caesia rhizome viz- hexane, ethyl acetate, methanol and water tested for free radical scavenging capacity by total antioxidant activity (TAO) method, Hexane Rhizome Extract (HRE) was found to possess remarkable activity (1200mg ascorbic acid equivalent/100g). In MTT assay across three cancer cell lines and a control cell line, HRE exhibited a dose-dependent inhibition only in cancer cells, with notable activity in HepG2 cell lines (IC50: 0976µg/mL). Further, western blotting and flow cytometry experiments proved that HRE induces cell arrest at G2/M phase along with cellular apoptosis as suggestive by multiple-point mitochondrial mediated intrinsic pathway of Programmed Cell Death (PCD). Gas Chromatography-Mass Spectrophotometry (GC-MS) analysis of HRE suggested twenty compounds that when docked in silico with Tubulin (1SA0) and Epidermal Growth Factor Receptor/ EGFR (1XKK) showed very intimate binding with the original ligands. Our results provided significant evidence of the toxicity mechanisms of HRE that may be beneficial for more rational applications of drug discovery for slowing down cancer progression.


Asunto(s)
Antineoplásicos Fitogénicos/farmacología , Supervivencia Celular/efectos de los fármacos , Curcuma/química , Extractos Vegetales/farmacología , Animales , Antineoplásicos Fitogénicos/química , Apoptosis , Chlorocebus aethiops , Células HT29 , Células Hep G2 , Humanos , Extractos Vegetales/química , Rizoma/química , Células Vero
6.
Colloids Surf B Biointerfaces ; 86(2): 378-83, 2011 Sep 01.
Artículo en Inglés | MEDLINE | ID: mdl-21592749

RESUMEN

Large number of papers has been published recently on the eleventh group metallic elements such as Ag, Au and Cu. Our study was focused on biosynthesis of silver nanoparticles, their morphology, reactivity and stability. We were interested to check these properties in two different samples, S1 and S2, respectively. The biosynthesis of silver nanoparticles was achieved by reacting the samples with 1 mM concentration of silver nitrate, one involves bacteria (S1) and the other involves the plant extract (S2). Spectrophotometric analysis revealed that the particles exhibited two peaks, one at 440 nm (for S1) and the other at 390 nm (for S2). It is well known that longer wavelength corresponds to increase in particle size. Since, S1 has got a longer wavelength; it is not known, whether it forms isolated particles or agglomerates? Morphological characterization has been done by adopting the procedures of Negative staining and Wedge smear preparation methods. This hybrid method may be of interest to study agglomerated particles. Microscopic examination of the smear S1 shows predominantly triangular or hexagonal shaped agglomerated particles which were not observed in S2. Hence further characterization was done using SEM, EDAX and XRD. The S2 particles were in the range of 45-70 nm and were stable for even four months. This study indicated that particle size can be controlled from micrometer to nanometer size by varying biological reductants.


Asunto(s)
Bacillus subtilis/metabolismo , Catharanthus/metabolismo , Nanopartículas del Metal , Nanotecnología/métodos , Nitrato de Plata/química , Plata/química , Bacillus subtilis/química , Catharanthus/química , Estabilidad de Medicamentos , Nanopartículas del Metal/química , Nanopartículas del Metal/ultraestructura , Microscopía Electrónica de Transmisión , Tamaño de la Partícula , Sustancias Reductoras/química , Espectroscopía Infrarroja por Transformada de Fourier , Difracción de Rayos X
7.
Asian Pac J Trop Biomed ; 1(4): 270-4, 2011 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-23569773

RESUMEN

OBJECTIVE: To develop a simple rapid procedure for bioreduction of silver nanoparticles (AgNPs) using aqueous leaves extracts of Catharanthus roseus (C. roseus). METHODS: Characterization were determined by using UV-Vis spectrophotometry, scanning electron microscopy (SEM), energy dispersive X-ray and X-ray diffraction. RESULTS: SEM showed the formation of silver nanoparticles with an average size of 67 nm to 48 nm. X-ray diffraction analysis showed that the particles were crystalline in nature with face centered cubic geometry. CONCLUSIONS: C. roseus demonstrates strong potential for synthesis of silver nanoparticles by rapid reduction of silver ions (Ag(+) to Ag(0)). This study provides evidence for developing large scale commercial production of value-added products for biomedical/nanotechnology-based industries.


Asunto(s)
Catharanthus/metabolismo , Nanopartículas/metabolismo , Plata/metabolismo , Cristalización , Microscopía Electrónica de Rastreo , Extractos Vegetales/metabolismo , Hojas de la Planta/metabolismo , Espectrometría por Rayos X , Espectrofotometría Ultravioleta
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