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1.
Biomolecules ; 14(8)2024 Aug 20.
Artículo en Inglés | MEDLINE | ID: mdl-39199421

RESUMEN

The use of chimeric antigen receptor (CAR) in natural killer (NK) cells for cancer therapy is gaining momentum, marking a significant shift in cancer treatment. This review aims to explore the potential of CAR-NK cell therapy in cancer immunotherapy, providing a fresh perspective. It discusses the innovative approaches in CAR-NK cell design and engineering, particularly targeting refractory or recurrent cancers. By comparing CAR-NK cells with traditional therapies, the review highlights their unique ability to tackle tumor heterogeneity and immune system suppression. Additionally, it explains how novel cytokines and receptors can enhance CAR-NK cell efficacy, specificity, and functionality. This review underscores the advantages of CAR-NK cells, including reduced toxicity, lower cost, and broader accessibility compared to CAR-T cells, along with their potential in treating both blood cancers and solid tumors.


Asunto(s)
Inmunoterapia Adoptiva , Células Asesinas Naturales , Neoplasias , Receptores Quiméricos de Antígenos , Humanos , Células Asesinas Naturales/inmunología , Neoplasias/terapia , Neoplasias/inmunología , Receptores Quiméricos de Antígenos/inmunología , Inmunoterapia Adoptiva/métodos , Animales
2.
J Affect Disord ; 365: 606-613, 2024 Aug 24.
Artículo en Inglés | MEDLINE | ID: mdl-39187204

RESUMEN

BACKGROUND: Psychiatric disorders, including attention-deficit hyperactivity disorder (ADHD), depression, anxiety disorders, and dementia, manifest differently across life stages, impacting cognitive, emotional, and behavioral health. Understanding the causal relationships between various types of physical activity and these disorders is crucial for developing targeted interventions. METHODS: The summary level data from GWAS was utilized to conduct a two-sample Mendelian Randomization (MR) analysis. We assessed the potential causal relationships between different types of physical activity including light do it yourself (DIY) activities, heavy DIY activities, strenuous sports, and aerobic exercises/other exercises and the prevalence of psychiatric disorders (ADHD, depression, anxiety disorders, and dementia) across different life stages. RESULTS: The MR analysis showed no causal relationship between light DIY activities and any of the psychiatric disorders studied. Heavy DIY activities showed a significant negative association with anxiety disorders but no links with ADHD, depression, or dementia. Strenuous sports did not demonstrate any causal relationship with the psychiatric disorders examined. Aerobic exercises were notably correlated with a reduced risk of depression, although no significant associations were found with ADHD, anxiety disorders, or dementia. CONCLUSIONS: The findings indicate that heavy DIY activities might contribute to reducing anxiety disorders, while aerobic exercises potentially lower the risk of depression. These results emphasize the potential benefits of promoting specific types of physical activity to improve mental health outcomes across different life stages. Future research could further investigate the mechanisms underlying these relationships and consider diverse populations and objective measures of physical activity.

3.
Microbiol Res ; 287: 127860, 2024 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-39089083

RESUMEN

Plants shape and interact continuously with their rhizospheric microbiota, which play a key role in plant health and resilience. However, plant-associated microbial community can be shaped by several factors including plant phenotype and cropping system. Thus, understanding the interplay between microbiome assembly during the onset of plant-pathogen interactions and long-lasting resistance traits in ligneous plants remains a major challenge. To date, such attempts were mainly investigated in herbaceous plants, due to their phenotypic characteristics and their short life cycle. However, only few studies have focused on the microbial structure, dynamic and their drivers in perennial ligneous plants. Ligneous plants coevolved in interaction with specific fungal and bacterial communities that differ from those of annual plants. The specificities of such ligneous plants in shaping their own functional microbial communities could be dependent on their high heterozygosis, physiological and molecular status associated to seasonality and their aging processes, root system and above-ground architectures, long-lasting climatic variations, and specific cultural practices. This article provides an overview of the specific characteristics of perennial ligneous plants that are likely to modulate symbiotic interactions in the rhizosphere, thus affecting the plant's fitness and systemic immunity. Plant and microbial traits contributing to the establishment of plant-microbiome interactions and the adaptation of this holobiont are also discussed.


Asunto(s)
Bacterias , Microbiota , Raíces de Plantas , Plantas , Rizosfera , Microbiología del Suelo , Simbiosis , Raíces de Plantas/microbiología , Plantas/microbiología , Bacterias/clasificación , Bacterias/genética , Bacterias/aislamiento & purificación , Hongos/clasificación , Hongos/genética , Hongos/fisiología
4.
Mol Clin Oncol ; 21(4): 67, 2024 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-39091417

RESUMEN

Cervical cancer is a significant global health concern, with a substantial portion of cases attributed to human papillomavirus (HPV) infection. Recent advancements in molecular profiling have identified distinct subtypes of cervical cancer based on their genomic alterations. One such subgroup is neurotrophic tropomyosin receptor kinase (NTRK) fusion-positive cervical cancers, characterized by gene fusions involving the NTRK genes. Although both NTRK fusion genes and HPV infections are independently recognized as significant risk factors in cervical cancer, their interplay and mutual effects on cancer progression are not yet fully understood. The present review is the first of its kind to explore the potential interplay between NTRK fusion genes and HPV infections. It surveys in detail how their combined effect can influence the signaling pathways during cervical cancer development and progression. Moreover, the present study discussed the clinical features, histopathological examinations, treatment procedures and follow-up outcomes of NTRK-fusion gene-positive cervical cancer. The present review may help in the understanding of the management and treatment of such rare, lethal and resistant cervical cancers.

7.
Plants (Basel) ; 12(23)2023 Nov 30.
Artículo en Inglés | MEDLINE | ID: mdl-38068666

RESUMEN

Salinity stress has become an increasing threat to viticulture in the Tunisian oasis, and more generally, the characterization of salinity tolerance markers can be of great interest for sustainable grape production. This study investigated some metabolic adaptations in different tissues of the ripe berries of indigenous grapevine cultivars after exposure to salt stress to identify the key traits of salt stress tolerance under oasis conditions. We especially focused on the adaptive responses occurring at the level of amino acids, polyamines, and stilbene phytoalexins in the grape berry skin, pulp, and seeds of six grapevine cultivars differing in phenotypic and ampelographic characteristics. Our data showed that amino acids accumulated strongly in the pulp and skin, while resveratrol, trans-piceid and trans-ε-viniferin, as major phytoalexins, significantly accumulated in the seeds. High salinity was also found to increase both the berry skin and pulp contents of essential amino acids such as threonine, valine, leucine, isoleucine, lysine, methionine, and phenylalanine. The amounts of stilbenes also increased under high salinity in the berry skin of all the studied cultivars. Polyamine homeostasis within the different berry tissues suggested enhanced polyamine biosynthesis rather than polyamine oxidation in response to high salinity. Our principal component analysis revealed a clear discrimination between the cultivars based on their metabolic profiles within the ripe berry tissues under high salinity.

8.
J Agric Food Chem ; 71(42): 15569-15581, 2023 Oct 25.
Artículo en Inglés | MEDLINE | ID: mdl-37831964

RESUMEN

Stilbene phytoalexins are among the most accumulated compounds during grapevine-pathogen interactions. However, their steady-state accumulation level and spatial distribution within the tissues to counteract Botrytis cinerea infection remain to be explored. In this work, matrix-assisted laser desorption/ionization-mass spectrometry imaging (MALDI-MSI) was used to determine the spatial distribution of different phytoalexins in grapevine leaves upon infection with B. cinerea. Ultraperformance liquid chromatography-fluorescence (UPLC-FL) was also employed to monitor the accumulation pattern of these phytoalexins. This study showed that stilbene compounds accumulate in areas close to the pathogen infection sites. It was also revealed that the accumulation patterns of the stilbene phytoalexins can vary from one time point postinfection to another with specific accumulation patterns within each time point. To the best of our knowledge, this is the first time that the separate localization of grapevine stilbene phytoalexins has been revealed following B. cinerea infection.


Asunto(s)
Sesquiterpenos , Estilbenos , Vitis , Sesquiterpenos/análisis , Espectrometría de Masa por Láser de Matriz Asistida de Ionización Desorción , Fitoalexinas , Vitis/química , Estilbenos/análisis , Botrytis , Enfermedades de las Plantas
9.
Bioorg Chem ; 141: 106829, 2023 12.
Artículo en Inglés | MEDLINE | ID: mdl-37690319

RESUMEN

A straightforward synthesis of carbohydrate templated isoxazolidines is described, by reaction of unprotected glycosylhydroxylamines (operating as 1,3-dipoles) with methyl acrylate using microwave activation. Rhamno- and erythro-isoxazolidines are recognized by plant cells, resulting in a strong ROS-production as a plant immune response, and exert a high antifungal activity against Botrytis cinerea.


Asunto(s)
Fungicidas Industriales , Antifúngicos/farmacología , Plantas , Glicoconjugados/farmacología , Carbohidratos
11.
Molecules ; 28(13)2023 Jun 30.
Artículo en Inglés | MEDLINE | ID: mdl-37446815

RESUMEN

The incorporation of graphene with metal oxide has been widely explored in various fields, including energy storage devices, optical applications, biomedical applications, and water remediation. This research aimed to assess the impact of reduced graphene oxide (RGO) doping on the photocatalytic and anticancer properties of In2O3 nanoparticles. Pure and In2O3/RGO nanocomposites were effectively synthesized using the single-step microwave hydrothermal process. XRD, TEM, SEM, EDX, XPS, Raman, UV-Vis, and PL spectroscopy were carefully utilized to characterize the prepared samples. XRD data showed that synthesized In2O3 nanoparticles had high crystallinity with a decreased crystal size after RGO doping. TEM and SEM images revealed that the In2O3 NPs were spherical and uniformly embedded onto the surface of RGO sheets. Elemental analysis of In2O3/RGO NC confirmed the presence of In, O, and C without impurities. Raman analysis indicated the successful fabrication of In2O3 onto the RGO surface. Uv-Vis analysis showed that the band gap energy was changed with RGO addition. Raman spectra confirmed that In2O3 nanoparticles were successfully anchored onto the RGO sheet. PL results indicated that the prepared In2O3/RGO NCs can be applied to enhance photocatalytic activity and biomedical applications. In the degradation experiment, In2O3/RGO NCs exhibited superior photocatalytic activity compared to that of pure In2O3. The degradation efficiency of In2O3/RGO NCs for MB dye was up to 90%. Biological data revealed that the cytotoxicity effect of In2O3/RGO NCs was higher than In2O3 NPs in human colorectal (HCT116) and liver (HepG2) cancer cells. Importantly, the In2O3/RGO NCs exhibited better biocompatibility against human normal peripheral blood mononuclear cells (PBMCs). All the results suggest that RGO addition improves the photocatalytic and anticancer activity of In2O3 NPs. This study highlights the potential of In2O3/RGO NCs as an efficient photocatalyst and therapeutic material for water remediation and biomedicine.


Asunto(s)
Grafito , Nanocompuestos , Humanos , Grafito/farmacología , Grafito/química , Azul de Metileno/farmacología , Azul de Metileno/química , Leucocitos Mononucleares , Microondas , Agua , Nanocompuestos/química
12.
Nat Prod Rep ; 40(5): 1045-1057, 2023 05 24.
Artículo en Inglés | MEDLINE | ID: mdl-36880302

RESUMEN

Though the iconic stilbene resveratrol and its related dimers constitute a top storyline in the field of natural product research, resveratrol oligomers (condensation >2) have been left aside despite their higher biological activity compared to that of the monomers. This situation largely results from the difficulty of getting them in sufficient quantities to enable evaluation of their biological properties in vivo. We present here a synthetic and critical analysis of the methods used for the production of high molecular-ordered stilbene oligomers of potential biomedical interest, gathering the most salient data regarding the approaches employed to prepare them by total synthesis, use of biomimetic approaches or through plant systems.


Asunto(s)
Estilbenos , Resveratrol , Estilbenos/farmacología , Catálisis
14.
Micromachines (Basel) ; 13(11)2022 Oct 27.
Artículo en Inglés | MEDLINE | ID: mdl-36363856

RESUMEN

Conventional detectors are mostly made up of complicated structures that are hard to use. A paper-based microfluidic chip, however, combines the advantages of being small, efficient, easy to process, and environmentally friendly. The paper-based microfluidic chips for biomedical applications focus on efficiency, accuracy, integration, and innovation. Therefore, continuous progress is observed in the transition from single-channel detection to multi-channel detection and in the shift from qualitative detection to quantitative detection. These developments improved the efficiency and accuracy of single-cell substance detection. Paper-based microfluidic chips can provide insight into a variety of fields, including biomedicine and other related fields. This review looks at how paper-based microfluidic chips are prepared, analyzed, and used to help with both biomedical development and functional integration, ideally at the same time.

16.
Prog Biophys Mol Biol ; 175: 90-102, 2022 11.
Artículo en Inglés | MEDLINE | ID: mdl-36150525

RESUMEN

Actopaxin is a newly discovered focal adhesions (FAs) protein, actin-binding protein and pseudopodia-enriched molecule. It can not only bind to a variety of FAs proteins (such as Paxillin, ILK and PINCH) and non-FAs proteins (such as TESK1, CdGAP, ß2-adaptin, G3BP2, ADAR1 and CD29), but also participates in multiple signaling pathways. Thus, it plays a crucial role in regulating important processes of tumor metastasis, including matrix degradation, migration, and invasion, etc. This review covers the latest progress in the structure and function of Actopaxin, its interaction with other proteins as well as its involvement in regulating tumor development and metastasis. Additionally, the current limitations for Actopaxin related studies and the possible research directions on it in the future are also discussed. It is hoped that this review can assist relevant researchers to obtain a deep understanding of the role that Actopaxin plays in tumor progression, and also enlighten further research and development of therapeutic approaches for the treatment of tumor metastasis.


Asunto(s)
Actinina , Neoplasias , Humanos , Actinina/metabolismo , Movimiento Celular , Adhesiones Focales/metabolismo , Proteínas de Microfilamentos/química , Proteínas de Microfilamentos/metabolismo , Neoplasias/metabolismo
17.
Biochim Biophys Acta Proteins Proteom ; 1870(10): 140825, 2022 10 01.
Artículo en Inglés | MEDLINE | ID: mdl-35926716

RESUMEN

Paxillin is one of the most important adapters in integrin-mediated adhesions that performs numerous crucial functions relying on its dynamic interactions. Its structural behavior serves different purposes, providing a base for several activities. The various domains of paxillin display different functions in the whole process of cell movements and have a significant role in cell adhesion, migration, signal transmission, and protein-protein interactions. On the other hand, some paxillin-associated proteins provide a unique spatiotemporal mechanism for regulating its dynamic characteristics in the tissue homeostasis and make it a more complex and decisive protein at the focal adhesions. This review briefly describes the structural adaptations and molecular mechanisms of recruitment of paxillin into adhesions, explains paxillin's binding dynamics and impact on adhesion stability and turnover, and reveals a variety of paxillin-associated regulatory mechanisms and how paxillin is embedded into the signaling networks.


Asunto(s)
Adhesiones Focales , Transducción de Señal , Adhesión Celular/fisiología , Movimiento Celular , Adhesiones Focales/metabolismo , Paxillin/metabolismo
19.
Microbiol Immunol ; 66(9): 426-432, 2022 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-35769047

RESUMEN

Dengue is a mosquito-borne viral illness that infects humans. For the past few decades, it has been declared a global public health problem. The current study, conducted at the district headquarter hospital (DHQ) Bannu between June to September 2018, was based on the seroprevalence of antibodies against dengue virus serotypes and their hematological parameters among the patients. A total of 1738 individuals suspected of having dengue were diagnosed through NS1, IgG, and IgM antibodies and RT-PCR techniques. Of all the samples, 716 (41.19%) were found to be positive for dengue. A higher infection rate was found in males (65.92%) compared with females (34.07%). The most affected age group was 16-40 years, whereas the most affected tehsil was Bannu, where the DENV-3 serotype was prevalent. The rare serotype (DENV-4) was found in 1% of cases. Symptoms including fever (100%), myalgia (100%), headache (61.31%), vomiting (34.63%), and rashes were common among the dengue patients. However, the mild cases showed fewer clinical signs compared with the severely infected cases. The study also revealed a significant association (P < 0.05) between hematological parameters and dengue infection, showing a significant decrease in TC, eosinophils, neutrophils, and platelets and a significant increase in monocytes and lymphocytes. Based on the current report, it is concluded that patients with the above symptoms and hematological changes may have an increased probability of dengue and should be kept under observation to separate dengue-positive patients and to enhance the treatment process.


Asunto(s)
Virus del Dengue , Dengue , Adolescente , Adulto , Animales , Anticuerpos Antivirales , Dengue/diagnóstico , Dengue/epidemiología , Femenino , Humanos , Inmunoglobulina M , Masculino , Estudios Seroepidemiológicos , Serogrupo , Adulto Joven
20.
Planta ; 255(6): 116, 2022 May 05.
Artículo en Inglés | MEDLINE | ID: mdl-35511374

RESUMEN

MAIN CONCLUSION: This review provides an overview on the role of camalexin in plant immunity taking into account various plant-pathogen and beneficial microbe interactions, regulation mechanisms and the contribution in basal and induced plant resistance. In a hostile environment, plants evolve complex and sophisticated defense mechanisms to counteract invading pathogens and herbivores. Several lines of evidence support the assumption that secondary metabolites like phytoalexins which are synthesized de novo, play an important role in plant defenses and contribute to pathogens' resistance in a wide variety of plant species. Phytoalexins are synthesized and accumulated in plants upon pathogen challenge, root colonization by beneficial microbes, following treatment with chemical elicitors or in response to abiotic stresses. Their protective properties against pathogens have been reported in various plant species as well as their contribution to human health. Phytoalexins are synthesized through activation of particular sets of genes encoding specific pathways. Camalexin (3'-thiazol-2'-yl-indole) is the primary phytoalexin produced by Arabidopsis thaliana after microbial infection or abiotic elicitation and an iconic representative of the indole phytoalexin family. The synthesis of camalexin is an integral part of cruciferous plant defense mechanisms. Although the pathway leading to camalexin has been largely elucidated, the regulatory networks that control the induction of its biosynthetic steps by pathogens with different lifestyles or by beneficial microbes remain mostly unknown. This review thus presents current knowledge regarding camalexin biosynthesis induction during plant-pathogen and beneficial microbe interactions as well as in response to microbial compounds and provides an overview on its regulation and interplay with signaling pathways. The contribution of camalexin to basal and induced plant resistance and its detoxification by some pathogens to overcome host resistance are also discussed.


Asunto(s)
Arabidopsis , Regulación de la Expresión Génica de las Plantas , Arabidopsis/metabolismo , Indoles/metabolismo , Enfermedades de las Plantas , Inmunidad de la Planta , Tiazoles
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