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1.
Int Rev Immunol ; 43(4): 229-247, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38343353

RESUMO

BACKGROUND: The gut microbiome plays a role in the development and progression of colorectal cancer (CRC). AIM AND OBJECTIVE: This review focuses on whether the gut microbiome is involved in the development and regulation of the host immune system. METHODS: The gut microbiome can influence the production and activity of immune cells and molecules that help to maintain the integrity of the intestinal barrier and prevent inflammation. Gut microbiota modulates the anti-cancer immune response. The gut microbiota can influence the function of immune cells, like T cells, that recognize and eliminate cancer cells. Gut microbiota can affect various aspects of cancer progression and the efficacy of various anti-cancer treatments. RESULTS: Gut microbiota provide promise as a potential biomarker to identify the effect of immunotherapy and as a target for modulation to improve the efficacy of immunotherapy in CRC treatment. CONCLUSION: The potential synergistic effect between the gut microbiome and anti-cancer treatment modalities provides an interest in developing strategies to modulate the gut microbiome to improve the efficacy of anti-cancer treatment.


This review focuses on the gut microbiome in the development and regulation of the host immune system. Gut microbiota provides potential biomarkers to identify the effect of immunotherapy and as a target for modulation of immunotherapy in the treatment of CRC. This provides potential synergistic effects between the gut microbiome and anti-cancer treatment modalities.


Assuntos
Neoplasias Colorretais , Microbioma Gastrointestinal , Humanos , Neoplasias Colorretais/terapia , Neoplasias Colorretais/imunologia , Neoplasias Colorretais/microbiologia , Microbioma Gastrointestinal/imunologia , Animais , Imunoterapia/métodos , Probióticos/uso terapêutico
2.
Sci Rep ; 13(1): 16550, 2023 10 02.
Artigo em Inglês | MEDLINE | ID: mdl-37783713

RESUMO

Previous studies have shown that polydatin (Poly) confer cardioprotective effects. However, its underlying mechanisms remain elusive. This study showed that Poly (10 µM) treatment reversed the high glucose (HG)-induced decrease in acetylcholine-elicited vasodilation in aortas. Poly also improved the acetylcholine-induced vasodilation of aortic vessels isolated from diabetic rats. Meanwhile, Poly ameliorated the morphological damage of the thoracic aorta and improved the viability of HUVECs under HG conditions. Furthermore, analysis of the vasoprotective effect of Poly under HG conditions by transmission electron microscopy, Western blotting, and qPCR revealed that Poly improved endothelial pyroptosis through the NLRP3/Caspase/1-IL-1ß pathway, enhanced dynamin-related protein 1-mediated mitochondrial fission, and increased the mitochondrial membrane potential under HG conditions. In conclusion, Poly restored acetylcholine-induced vasodilation impaired by HG incubation, which was associated with reduced oxidation, inflammation, and pyroptosis, the recovery of the mitochondrial membrane potential and maintenance of mitochondrial dynamic homeostasis of endothelial cells in the aortas.


Assuntos
Diabetes Mellitus Experimental , Células Endoteliais , Ratos , Animais , Células Endoteliais/metabolismo , Acetilcolina/metabolismo , Glucose/metabolismo , Diabetes Mellitus Experimental/metabolismo , Homeostase
3.
Brain Behav ; 11(10): e2302, 2021 10.
Artigo em Inglês | MEDLINE | ID: mdl-34520634

RESUMO

This study explores the use of optical coherence tomography (OCT) to monitor and diagnose multiple sclerosis (MS). The analysis of reduced total macular volume and peripapillary retinal nerve fiber layer thinning are shown. The severity of these defects increases as MS progresses, reflecting the progressive degeneration of nerve fibers and retinal ganglion cells. The OCT parameters are noninvasive, sensitive indicators that can be used to assess the progression of neurodegeneration and inflammation in MS.


Assuntos
Esclerose Múltipla , Tomografia de Coerência Óptica , Humanos , Esclerose Múltipla/diagnóstico por imagem , Fibras Nervosas , Retina/diagnóstico por imagem , Células Ganglionares da Retina
4.
Brain Behav ; 11(8): e2280, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-34291612

RESUMO

Recently, genome-editing technology like clustered regularly interspaced short palindromic repeats (CRISPR)/Cas9 has improved the translational gap in the treatments mediated through gene therapy. The advantages of the CRISPR system, such as, work in the living cells and tissues, candidate this technique for the employing in experiments and the therapy of central nervous system diseases. Parkinson's disease (PD) is a widespread, disabling, neurodegenerative disease induced by dopaminergic neuron loss and linked to progressive motor impairment. Pathophysiological basis knowledge of PD has modified the PD classification model and expresses in the sporadic and familial types. Analyses of the earliest genetic linkage have shown in PD the inclusion of synuclein alpha (SNCA) genomic duplication and SNCA mutations in the familial types of PD pathogenesis. This review analyzes the structure, development, and function in genome editing regulated through the CRISPR/Cas9. Also, it explains the genes associated with PD pathogenesis and the appropriate modifications to favor PD. This study follows the direction by understanding the PD linking analyses in which the CRISPR technique is applied. Finally, this study explains the limitations and future trends of CRISPR service in relation to the genome-editing process in PD patients' induced pluripotent stem cells.


Assuntos
Doenças Neurodegenerativas , Doença de Parkinson , Sistemas CRISPR-Cas/genética , Edição de Genes , Humanos , Doença de Parkinson/genética , Doença de Parkinson/terapia , alfa-Sinucleína
5.
Biotechnol Appl Biochem ; 68(5): 992-1002, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-32885506

RESUMO

This study reports the green synthesis and urease inhibitory activities of Ag and Au nanoparticles (NPs) using Crataegus oxyacantha extract. The synthesized NPs were characterized by UV-visible, FT-IR spectroscopy, atomic force microscopy, and scanning electron microscopy. The obtained NPs were spherical in shape, and their size was around 85 nm. A strong correlation between the phytochemicals present in the extract and their capability for the synthesis of NPs was observed. Furthermore, the shape, size, stability, and bioactivity of the NPs were strongly influenced by the stabilizing phytochemicals. The experimental analysis suggested that these NPs have substantial stability in a diverse range of physiological conditions such as pH, salinity, and temperature. The NPs exhibited potent urease enzyme inhibitory activities with percent inhibition of 99.25 and IC50 value of 1.38 ± 0.3, comparable to the standard (thiourea percent inhibition, that is, 98.2% and IC50 value 5.3 ± 0.04). These results suggested that the proposed NPs could be used in the homeopathic and pharmaceutical industries for biomedical applications.


Assuntos
Crataegus/química , Inibidores Enzimáticos/farmacologia , Química Verde , Compostos Fitoquímicos/farmacologia , Extratos Vegetais/farmacologia , Urease/antagonistas & inibidores , Canavalia/enzimologia , Inibidores Enzimáticos/química , Inibidores Enzimáticos/isolamento & purificação , Ouro/química , Ouro/farmacologia , Nanopartículas Metálicas/química , Tamanho da Partícula , Compostos Fitoquímicos/química , Compostos Fitoquímicos/isolamento & purificação , Extratos Vegetais/química , Extratos Vegetais/isolamento & purificação , Prata/química , Prata/farmacologia , Urease/metabolismo
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