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1.
Anal Chim Acta ; 1296: 342332, 2024 Apr 01.
Artículo en Inglés | MEDLINE | ID: mdl-38401940

RESUMEN

Isoniazid (INH) is crucial in the treatment of tuberculosis; however, its overuse may induce significant gastrointestinal and hepatic side effects. On October 27, 2017, the International Agency for Research on Cancer, under the auspices of the World Health Organization, published a list of carcinogens for preliminary collation and reference. Isoniazid was categorized as a Group 3 carcinogen. The efficient detection of INH poses an important and challenging task. In this study, a "synergistic effect" is incorporated into the pillar (Yamagishi and Ogoshi, 2018) [5] arene-based macrocyclic host (DPA) by strategically attaching bis-p-hydroxybenzoic acid groups to the opposite ends of the pillar (Yamagishi and Ogoshi, 2018) [5] arene. This combination endows DPA with a reversible and selective fluorescence response to isoniazid. Additionally, DPA exhibits excellent analytical capabilities for isoniazid, including speed and selectivity, with a detection limit as low as 4.85 nM. Concurrently, DPA can self-assemble into a microsphere structure, which is convertible into micrometer-sized tubular structures through host-guest interactions with isoniazid. The introduction of a competitive guest, trimethylamine, enables the reversion to its microsphere structure. Consequently, this study presents an innovative and straightforward synthetic approach for smart materials that facilitates the reversible morphological transition between microspheres and microtubes in response to external chemical stimuli. This discovery provides a valuable strategy for designing "synergistic effects" in constructing trace-level isoniazid-responsive interfaces, with potential applications across various fields, such as controlled drug delivery.


Asunto(s)
Materiales Inteligentes , Isoniazida , Sistemas de Liberación de Medicamentos , Microesferas
2.
PeerJ Comput Sci ; 10: e1788, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38196951

RESUMEN

Background: Joint local context that is primarily processed by pre-trained models has emerged as a prevailing technique for text classification. Nevertheless, there are relatively few classification applications on small sample of industrial text datasets. Methods: In this study, an approach of employing global enhanced context representation of the pre-trained model to classify industrial domain text is proposed. To achieve the application of the proposed technique, we extract primary text representations and local context information as embeddings by leveraging the BERT pre-trained model. Moreover, we create a text information entropy matrix through statistical computation, which fuses features to construct the matrix. Subsequently, we adopt BERT embedding and hyper variational graph to guide the updating of the existing text information entropy matrix. This process is subjected to iteration three times. It produces a hypergraph primary text representation that includes global context information. Additionally, we feed the primary BERT text feature representation into capsule networks for purification and expansion as well. Finally, the above two representations are fused to obtain the final text representation and apply it to text classification through feature fusion module. Results: The effectiveness of this method is validated through experiments on multiple datasets. Specifically, on the CHIP-CTC dataset, it achieves an accuracy of 86.82% and an F1 score of 82.87%. On the CLUEEmotion2020 dataset, the proposed model obtains an accuracy of 61.22% and an F1 score of 51.56%. On the N15News dataset, the accuracy and F1 score are 72.21% and 69.06% respectively. Furthermore, when applied to an industrial patent dataset, the model produced promising results with an accuracy of 91.84% and F1 score of 79.71%. All four datasets are significantly improved by using the proposed model compared to the baselines. The evaluation result of the four dataset indicates that our proposed model effectively solves the classification problem.

3.
Aging (Albany NY) ; 16(9): 8348-8360, 2023 Dec 29.
Artículo en Inglés | MEDLINE | ID: mdl-38159259

RESUMEN

BACKGROUND: Globally, lung adenocarcinoma (LUAD) is the most common type of lung cancer. The secreted protein angiopoietin-like 4 (ANGPTL4) has been implicated in a number of physiological and pathological processes, including angiogenesis and lipid metabolism. But the role of ANGPTL4 in LUAD remains unknown. METHODS: The expression of ANGPTL4 and miR-133a-3p was confirmed by public database analysis. Xenograft model, MTT, Clone formation and EdU analysis were used to confirm the effects of miR-133a-3p/ANGPTL4 on LUAD cell proliferation and growth. Wound healing and Transwell analysis were used to elucidate the role of miR-133a-3p/ANGPTL4 in LUAD cell migration and invasion. Oil red O staining was used to confirm ANGPTL4 in LUAD lipids production. Dual-luciferase reporter gene analysis was used to demonstrate miR-133a-3p could directly bind ANGPTL4 3'-UTR. WB and PCR were used to confirm the protein expression of ANGPTL4. RESULTS: ANGPTL4 was significantly increased in LUAD samples, which could promote LUAD cell proliferation, migration, invasion, growth and lipid production. miR-133a-3p could directly bind to ANGPTL4 mRNA, and repress the expression ANGPTL4, resulting in suppressing LUAD proliferation and metastasis. CONCLUSION: In conclusion, miR-133a-3p/ANGPTL4 axis might be a potential biomarker and therapeutic target for LUAD patients.


Asunto(s)
Adenocarcinoma del Pulmón , Proteína 4 Similar a la Angiopoyetina , Movimiento Celular , Proliferación Celular , Metabolismo de los Lípidos , Neoplasias Pulmonares , MicroARNs , Invasividad Neoplásica , Proteína 4 Similar a la Angiopoyetina/genética , Proteína 4 Similar a la Angiopoyetina/metabolismo , MicroARNs/genética , MicroARNs/metabolismo , Humanos , Proliferación Celular/genética , Adenocarcinoma del Pulmón/genética , Adenocarcinoma del Pulmón/metabolismo , Adenocarcinoma del Pulmón/patología , Neoplasias Pulmonares/genética , Neoplasias Pulmonares/patología , Neoplasias Pulmonares/metabolismo , Metabolismo de los Lípidos/genética , Animales , Invasividad Neoplásica/genética , Movimiento Celular/genética , Ratones , Regulación Neoplásica de la Expresión Génica , Línea Celular Tumoral , Ratones Desnudos
4.
Org Biomol Chem ; 21(19): 4022-4027, 2023 05 17.
Artículo en Inglés | MEDLINE | ID: mdl-37128802

RESUMEN

Amino acids play an important role in the formation of proteins, enzymes, hormones and peptides in animals. Moreover, aspartic acid and glutamic acid have a critical impact on the central nervous system as excitatory neurotransmitters. Here, we report the highly selective detection of L-glutamic acid (L-Glu) and L-aspartic acid (L-Asp) using fluorescent microparticles constructed by the combination of aggregation-induced emission and self-assembly-induced Förster resonance energy transfer.


Asunto(s)
Ácido Aspártico , Ácido Glutámico , Animales , Ácido Aspártico/química , Transferencia Resonante de Energía de Fluorescencia , Aminoácidos , Péptidos , Colorantes
5.
Zhongguo Zhong Yao Za Zhi ; 48(1): 52-59, 2023 Jan.
Artículo en Chino | MEDLINE | ID: mdl-36725258

RESUMEN

This study investigated the choroplast genome sequence of wild Atractylodes lancea from Yuexi in Anhui province by high-throughput sequencing, followed by characterization of the genome structure, which laid a foundation for the species identification, analysis of genetic diversity, and resource conservation of A. lancea. To be specific, the total genomic DNA was extracted from the leaves of A. lancea with the improved CTAB method. The chloroplast genome of A. lancea was sequenced by the high-throughput sequencing technology, followed by assembling by metaSPAdes and annotation by CPGAVAS2. Bioiformatics methods were employed for the analysis of simple sequence repeats(SSRs), inverted repeat(IR) border, codon bias, and phylogeny. The results showed that the whole chloroplast genome of A. lancea was 153 178 bp, with an 84 226 bp large single copy(LSC) and a 18 658 bp small single copy(SSC) separated by a pair of IRs(25 147 bp). The genome had the GC content of 37.7% and 124 genes: 87 protein-coding genes, 8 rRNA genes, and 29 tRNA genes. It had 26 287 codons and encoded 20 amino acids. Phylogenetic analysis showed that Atractylodes species clustered into one clade and that A. lancea had close genetic relationship with A. koreana. This study established a method for sequencing the chloroplast genome of A. lancea and enriched the genetic resources of Compositae. The findings are expected to lay a foundation for species identification, analysis of genetic diversity, and resource conservation of A. lancea.


Asunto(s)
Atractylodes , Genoma del Cloroplasto , Lamiales , Filogenia , Atractylodes/genética , Secuenciación Completa del Genoma , Repeticiones de Microsatélite
7.
Int J Biol Macromol ; 225: 1543-1554, 2023 Jan 15.
Artículo en Inglés | MEDLINE | ID: mdl-36436603

RESUMEN

Atractylodes lancea (Thunb.) DC. is an important medicinal plant mainly distributed in China. A. lancea is rich in volatile oils and has a significant effect on various diseases, including coronavirus disease 2019 (COVID-19). Based on the signature constituents of volatile oils, A. lancea is divided into two chemotypes: the Dabieshan and Maoshan chemotype. Gas chromatography-mass spectrometry (GC-MS) results revealed that the hinesol and ß-eudesmol contents in the Dabieshan chemotype were higher than those in the Maoshan chemotype. Next-generation sequencing (NGS) and single-molecule real-time (SMRT) sequencing technologies were combined to investigate the molecular mechanisms of sesquiterpenoid biosynthesis in A. lancea. A total of 42 differentially expressed genes (DEGs) for terpenoid biosynthesis were identified in the two chemotype groups, and nine full-length terpene synthase (TPS) genes were identified. Subcellular localization revealed that AlTPS1 and AlTPS2 proteins were localized in the nucleus and endoplasmic reticulum. They use FPP as a substrate to generate sesquiterpenoids. AlTPS1 catalyzes biosynthesis of elemol while AlTPS2 is observed to perform ß-farnesene synthase activity. This study provides information for understanding the differences in the accumulation of terpenoids in two chemotypes of A. lancea and lays a foundation for further elucidation of the molecular mechanism of sesquiterpenoid biosynthesis.


Asunto(s)
Atractylodes , COVID-19 , Aceites Volátiles , Sesquiterpenos , Atractylodes/química , Sesquiterpenos/metabolismo , Aceites Volátiles/química , Perfilación de la Expresión Génica
8.
Front Immunol ; 13: 907636, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35967419

RESUMEN

Tumor-associated macrophages (TAMs) are involved in the growth of prostate cancer (PrC), while the molecular mechanisms underlying the interactive crosstalk between TAM and PrC cells remain largely unknown. Platelet-derived growth factor (PDGF) is known to promote mesenchymal stromal cell chemotaxis to the tumor microenvironment. Recently, activation of spindle pole body component 25 (SPC25) has been shown to promote PrC cell proliferation and is associated with PrC stemness. Here, the relationship between SPC25 and PDGF in the crosstalk between TAM and PrC was investigated. Significant increases in both PDGF and SPC25 levels were detected in PrC specimens compared to paired adjacent normal prostate tissues. A significant correlation was detected between PDGF and SPC25 levels in PrC specimens and cell lines. SPC25 increased PDGF production and tumor cell growth in cultured PrC cells and in xenotransplantation. Mechanistically, SPC25 appeared to activate PDGF in PrC likely through Early Growth Response 1 (Egr1), while the secreted PDGF signaled to TAM through PDGFR on macrophages and polarized macrophages, which, in turn, induced the growth of PrC cells likely through their production and secretion of transforming growth factor ß1 (TGFß1). Thus, our data suggest that SPC25 triggers the crosstalk between TAM and PrC cells via SPC25/PDGF/PDGFR/TGFß1 receptor signaling to enhance PrC growth.


Asunto(s)
Proteínas Asociadas a Microtúbulos , Factor de Crecimiento Derivado de Plaquetas , Próstata , Neoplasias de la Próstata , Cuerpos Polares del Huso , Macrófagos Asociados a Tumores , Línea Celular Tumoral , Humanos , Masculino , Proteínas Asociadas a Microtúbulos/metabolismo , Factor de Crecimiento Derivado de Plaquetas/metabolismo , Próstata/metabolismo , Neoplasias de la Próstata/metabolismo , Receptor Cross-Talk/fisiología , Receptores del Factor de Crecimiento Derivado de Plaquetas/metabolismo , Transducción de Señal , Cuerpos Polares del Huso/metabolismo , Factor de Crecimiento Transformador beta1/metabolismo , Microambiente Tumoral , Macrófagos Asociados a Tumores/metabolismo
9.
Transl Androl Urol ; 11(4): 519-527, 2022 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-35558271

RESUMEN

Background: Androgen plays a critical role in the development and growth of prostate cancer (PCa) by binding to the androgen receptor, a steroid receptor for testosterone and dihydrotestosterone (DHT). Androgen deprivation therapy, a clinical endocrine therapy, has resulted in increases in the occurrence of castration-resistant prostate cancer (CRPC); however, the mechanisms of CRPC have not yet fully been determined. We previously showed that spindle pole body component 25 (SPC25), a component of the NDC80 complex that is critical in kinetochore formation and chromosome segregation during the cell cycle, plays a critical role in PCa tumorigenesis and cancer stemness. However, it is not yet known whether SPC25 plays a role in CRPC; thus, we sought to address this question in the current study. Methods: SPC25 levels were detected in androgen-insensitive PCa cells using the public database and bioinformatics tools. In vitro, SPC25 levels were determined in androgen-sensitive and androgen-insensitive PCa cells treated with or without DHT. The growth of the PCa cells was assessed by the Cell Counting Kit-8 assay. The invasiveness and migratory potential of the PCa cells were assessed by the transwell cell invasive assay and migratory assay, respectively. Gain-of-function and loss-of-function experiments examined the transfection of androgen-sensitive and androgen-insensitive PCa cells by plasmids carrying small-interfering ribonucleic acids for SPC25 or SPC25, respectively. Results: SPC25 levels were significantly reduced in the androgen-insensitive PCa cells treated with DHT in the Public database. In vitro, PCa cell growth, invasion, and metastasis was reduced in androgen-insensitive PCa cells but increased in androgen-sensitive PCa cells treated with DHT, partially through DHT-regulated expression of SPC25 at transcriptional but not at translational levels. Conclusions: Androgen treatment reduces CRPC growth, invasion, and metastasis partially through its regulation of SPC25. SPC25 represents a promising target in the treatment of CRPC.

10.
PeerJ Comput Sci ; 8: e971, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35634127

RESUMEN

Automatic lecture recording is an appealing alternative approach to manually recording lectures in the process of online course making as it can to a large extent save labor cost. The key of the automatic recording system is lecturer tracking, and the existing automatic tracking methods tend to lose the target in the case of lecturer's rapid movement. This article proposes a lecturer tracking system based on MobileNet-SSD face detection and Pedestrian Dead Reckoning (PDR) technology to solve this problem. First, the particle filter algorithm is used to fuse the PDR information with the rotation angle information of the Pan-Tilt camera, which can improve the accuracy of detection under the tracking process. In addition, to improve face detection performance on the edge side, we utilize the OpenVINO toolkit to optimize the inference speed of the Convolutional Neural Networks (CNNs) before deploying the model. Further, when the lecturer is beyond the camera's field of view, the PDR auxiliary module is enabled to capture the object automatically. We built the entire lecture recording system from scratch and performed the experiments in the real lectures. The experimental results show that our system outperforms the systems without a PDR module in terms of the accuracy and robustness.

11.
J Cancer Res Clin Oncol ; 148(7): 1813-1823, 2022 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-35633416

RESUMEN

BACKGROUND: Rapid evolution of the therapeutic management of prostate cancer, especially in in second-generation androgen inhibitors, has increased the opportunity of transformation from prostate cancer (PCa) to neuroendocrine prostate cancer (NEPC). NEPC still lacks effective diagnostic and therapeutic interventions. Researches into the molecular characteristics of neuroendocrine differentiation is undoubtedly crucial to the discovery of new target genes for accurate diagnostic and therapeutic targets. PURPOSE: In this review, we focus on the relevant genes and molecular mechanisms that have contributed to the transformation in the progression of PCa and discuss the potential targeted molecule that might improve diagnostic accuracy and therapeutic effectiveness. METHODS: The relevant literatures from PubMed have been reviewed for this article. CONCLUSION: Several molecular characteristics influence the progression of neuroendocrine differentiation of prostate cancer which will provide a novel sight for accurate diagnosis and target therapeutic intervention for patients with NEPC.


Asunto(s)
Carcinoma Neuroendocrino , Neoplasias de la Próstata , Línea Celular Tumoral , Progresión de la Enfermedad , Humanos , Masculino , Próstata , Neoplasias de la Próstata/tratamiento farmacológico , Neoplasias de la Próstata/genética
12.
Artículo en Inglés | MEDLINE | ID: mdl-35449809

RESUMEN

Background: Naoluo Xintong decoction (NLXTD) is a traditional Chinese medicine (TCM) formula which has been used to improve neuronal functional recovery after cerebral ischemic stroke. However, the molecular mechanism underlying NLXTD's amelioration of ischemic stroke remains unclear. The present study was designed to explore the effect and mechanism of NLXTD on brain angiogenesis in a rat model with cerebral ischemia-reperfusion (I/R) injury targeting the hypoxia-inducible factor-1α (HIF-1α)/vascular endothelial growth factor (VEGF) pathway. Materials and Methods: Cerebral I/R model was established by the classical middle cerebral artery occlusion (MCAO) method. Sprague-Dawley (SD) male rats (n = 80) were randomly divided into the sham-operation group, the model group, the HIF-1α inhibitor 2-methoxyestradiol (2ME2) group, the 2ME2 with NLXTD group, and the NLXTD group. Neurological deficit test, TTC staining, H&E staining, TUNEL staining, immunohistochemistry (IH), immunofluorescence (IF), western blot, and quantitative RT-PCR were performed to evaluate the effect of NLXTD after MCAO. Results: Administration of NLXTD significantly decreased neuron deficiency scores, reduced brain infarct volume, and lowered damaged and apoptotic cells after brain I/R injury in rats. Meanwhile, NLXTD had a protective effect on angiogenesis by increasing the MVD and the expressions of BrdU and CD34, which enhanced the number of endothelial cells in the ischemic penumbra brain. NLXTD treatment significantly raised the protein and mRNA levels of HIF-1α, VEGF, VEGFR2, and Notch1 compared with the model treatment. In contrast, a specific HIF-1α inhibitor, 2ME2, inhibited the improvement of neurological function and angiogenesis in NLXTD-induced rats with cerebral I/R injury, suggesting that NLXTD played a positive role in ischemic brain injury by activating the HIF-1α/VEGF signaling pathway. Conclusions: NLXTD exerts neuroprotection targeting angiogenesis by upregulating the HIF-1α/VEGF signaling pathway on cerebral I/R injury rats.

13.
J Sep Sci ; 45(5): 1067-1079, 2022 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-34963032

RESUMEN

Traditional Chinese medicine is made from the rhizome of Atractylodes lancea (Thunb.) DC. (Compositae), known as Cangzhu. In this study, gas chromatography-mass spectrometry was used to identify and quantify the volatile oils of different organs of A. lancea from four regions of China: Jiangsu, Anhui, Henan, and Hubei provinces. The volatile oils of A. lancea were qualitatively and quantitatively characterized using gas chromatography-mass spectrometry combined with laser microdissection. The results identified 21 components in A. lancea, the majority of the components were found in the rhizomes, followed by the fibrous roots, flowers, leaves, and stems. According to the contents of volatile oils in A. lancea, it was divided into Dabieshan (mainly includes hinesol and ß-eudesmol) and Maoshan types (mainly includes atractylon and atractylodin), and the ratios of hinesol:ß-eudesmol:atractylon:atractylodin were 17.06:4.55:0:1, 12.66:11.71:0.99:1, 7.43:6.23:0:1, and 0.13:0.16:1.52:1 in A. lancea from AH, HN, HB, and JS, respectively. Tissue-specific study indicated that Dabieshan type mainly includes elemol, hinesol, and ß-eudesmol in the periderm and secretory cavities of A. lancea, whereas Maoshan type mainly includes atractylon, atractylodin, little hinesol, and ß-eudesmol in the secretory cavities. Conversely, no volatile oils were detected in the cortex, phloem, xylem, vascular ray, or pith. This study provides a foundation for further evaluation and utilization of A. lancea.


Asunto(s)
Atractylodes , Aceites Volátiles , Atractylodes/química , Cromatografía de Gases y Espectrometría de Masas , Rayos Láser , Microdisección , Aceites Volátiles/química
14.
Ann Transl Med ; 9(18): 1432, 2021 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-34733984

RESUMEN

BACKGROUND: Aberrant growth and polarization of microglia are critical for pathological initiation and progression of neurodegenerative conditions like Alzheimer's disease (AD). However, the molecular signals that govern the outgrowth of microglia have not yet been fully determined. Spindle pole body component 25 (SPC25) is an important part for forming NDC80 complex, which plays a key role in the assembly of the microtubule-binding domain of kinetochores. Nevertheless, the role of SPC25 in microglial growth during neurodegeneration has not been described before, and was thus addressed in the current study. METHODS: We generated an adeno-associated virus (AAV) serotype PHP.B carrying short hairpin RNA (shRNA) for SPC25 (shSPC25) under a microglia-specific TMEM119 promoter (AAV-pTMEM-shSPC25). Serotype PHP.B allowed the virus to cross blood-brain barrier, while TMEM119 promoter allowed specific targeting microglia in vitro and in vivo. We intravenously administrated AAV-pTMEM-shSPC25 to AD-prone APP/PS1 male and female mice and determined this effect on microglia proliferation and mouse behavior. RESULTS: Depletion of SPC25 did not alter polarization of microglia cell polarization in vitro. On the other hand, AD-prone APP/PS1 mice that had received AAV-pTMEM-shSPC25 significantly decreased SPC25 levels in microglia and attenuated microglia proliferation, resulting in significant improvement of the performance of the mice in behavior tests. CONCLUSIONS: Specific depletion of SPC25 in microglia may prevent AD development through suppression of microglia outgrowth. SPC25 may be a promising novel target for preventing AD through microglia.

15.
J Cancer ; 12(14): 4209-4217, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34093821

RESUMEN

Circular RNAs (circRNAs) is one type of non-coding RNAs (ncRNAs) which have many roles in biological processes, as well as modulation intracellular gene expression modulation. Nonethless, the roles along with expression status of the most circRNAs in NSCLC (non-small cell lung cancer) remain unknown. Herein, we conducted a high-throughput microarray sequencing to identify abnormal expressed circRNAs. Circ0101675 was found upregulated in NSCLC cell lines and tissues. We carried out colony formation, transwell, CCK-8, and animal assays to investigate the functions of circ0101675. Silence of circ0101675 inhibited the migration and proliferation of NSCLC. To elucidate the mechanism, RNA immunoprecipitation assays along with luciferase enzyme reporter assays were further employed to explore the cross-talk between circ0101675 and other molecules. We discovered that circ0101675 facilitates the malignant process of growth and migration via sponging miR-1278 and upregulating WNT3A/5A expression. In conclusion, we revelaed the vital role of circ0101675-miR-1278-WNT3A/5A signaling in NSCLC progression via the competing endogenous RNAs mechanism. Therefore, circ0101675 can be used as a new and useful biomarker for monitoring and treating NSCLC.

16.
Exp Ther Med ; 21(4): 405, 2021 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-33692836

RESUMEN

Prostate cancer (PCa) is considered to be one of the most common tumors in men. Calcium-binding and coiled-coil domain 2 (CALCOCO2) is a known important xenophagy receptor, which mediates intracellular bacterial degradation. To the best of the authors' knowledge, the present study is the first to demonstrate that CALCOCO2 functions as an oncogene in PCa. The results of the current study indicated that CALCOCO2 knockdown suppressed cell proliferation and colony formation, whereas it promoted apoptosis of PCa cells. In addition, knockdown of CALCOCO2 in PCa cells reduced cyclin-E1 and increased p53 protein expression. Bioinformatics analysis revealed that CALCOCO2 was associated with 'autophagosome assembly', 'nucleophagy' and 'nucleic acid metabolic process' biological processes and interacted with sequestosome-1, microtubule-associated proteins 1A/1B light chain 3 (MAP1LC3)B, γ-aminobutyric acid receptor-associated protein, IκB kinase subunit γ and MAP1LC3C. Moreover, CALCOCO2 protein levels were indicated to be significantly increased in PCa samples compared with normal prostate tissues. These results suggested that CALCOCO2 may be of value as a diagnostic and therapeutic target in PCa.

17.
Photochem Photobiol Sci ; 19(12): 1690-1696, 2020 Dec 01.
Artículo en Inglés | MEDLINE | ID: mdl-33206102

RESUMEN

A novel fluorescent chemosensor based on trimesoyl chloride-rhodamine (TR) was successfully synthesized. Rising chromogenic and fluorogenic spectral enhancements could be observed in trimesoyl chloride-rhodamine (TR) probes when Hg2+ and Fe3+ were added, respectively. TR has shown selectivity for Hg2+ and Fe3+ with high sensitivity due to metal ion complexation induced photophysical "turn-on" signaling responses. The detection limit towards Hg2+ was 2.46 × 10-8 M as determined by the 3σ method. At the same time, fluorogenic spectral enhancements were observed in TR, which exhibits a superior sensitive and selective recognition towards Fe3+ with 4.11 × 10-8 M of the detection limit. The test strips were used for colorimetric and simple detection towards Hg2+, which might finally enable the advancement of the Hg2+ sensor in the field of on-site detection.

18.
Soft Matter ; 16(43): 9876-9881, 2020 Nov 21.
Artículo en Inglés | MEDLINE | ID: mdl-33006593

RESUMEN

Supramolecular gels have been widely reported on account of their unique superiority and application prospects. In this work, we constructed a novel supramolecular gel (HD-G) by using hydroxy-naphthaldehyde decorated with naphthalimide in DMSO solution, which exhibited excellent selectivity and ultrasensitive sensing properties toward CN- (the lowest detection limit is 1.82 × 10-10 M). The sensing mechanism of this supramolecular gel takes advantage of π-π stacking interactions and anion-π interactions, which is different from the other familiar methods.

19.
Oncol Lett ; 17(6): 5768-5776, 2019 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-31186803

RESUMEN

Prostate cancer (PCa) is one of the most frequently diagnosed types of cancer worldwide. However, there remains a lack of accurate biomarkers to predict the outcome of PCa. Non-SMC condensin I complex subunit H (NCAPH) encodes a regulatory subunit of the non-structural maintenance of chromosomes condensin I complex. The present study aimed to investigate whether NCAPH may be a novel diagnostic marker for PCa by analyzing public datasets, including GSE17951, GSE55945 and a dataset from The Cancer Genome Atlas. The current results, to the best of our knowledge, demonstrated for the first time that NCAPH is significantly upregulated in PCa. Furthermore, it was identified that NCAPH expression is higher in stage T3/T4 and N1 PCa samples compared with stage T2 and N0 PCa samples, respectively. Kaplan-Meier analysis demonstrated that overexpression of NCAPH is associated with poor survival of patients with PCa. Bioinformatics analysis revealed that NCAPH is involved in regulating the PCa cell cycle by interacting with a number of proteins, including non-SMC condensin I complex subunit D2, non-SMC condensin I complex subunit G, structural maintenance of chromosomes 4, structural maintenance of chromosomes 2, Aurora kinase A, Aurora kinase B, cyclin-dependent kinase 1, H2A histone family member Z, POC1 centriolar protein A and histone cluster 2 H2A family member C. In summary, the present results suggest NCAPH may be a novel and beneficial diagnostic and therapeutic target in PCa.

20.
Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi ; 34(8): 702-707, 2018 Aug.
Artículo en Chino | MEDLINE | ID: mdl-30384868

RESUMEN

Objective To investigate the effect of Naoluoxintong on the protein expression of Toll like receptor 4 (TLR4), tumor necrosis factor receptor associated factor-6 (TRAF6) and tumor necrosis factor-α (TNF-α) in the frontal and parietal cortex of the rats with middle cerebral artery occlusion and reperfusion (MCAO/R). Methods The modified rat model of MCAO/R was established by suture method. SD rats were randomly divided into four groups: a sham control group, a model group, a Tongxinluo group, and a Naoluoxintong group, with 30 rats in each group. Western blotting was used to detect the expression of TLR4 and TRAF6 in the ischemic lateral frontal cortex, and the expression of TNF-α was measured by immunohistochemistry. Results Compared with the sham control group, the model group had significantly higher expression of TLR4 and TRAF6 on the 3rd, 7th and 14th days, which were reduced by Naoluoxintong and Tongxinluo treatments. Interestingly, the expression of TLR4 on the 3rd, 7th and 14th days were lower in the Naoluoxintong group as compared with those in the Tongxinluo group. Immunohistochemistry showed that TNF-α expression was also enhanced in the model group on the 3rd and 7th days, which were reduced by Naoluoxintong and Tongxinluo treatments. However, TNF-α expression at the different time points was no significantly difference between the Naoluoxintong and Tongxinluo groups. Conclusion Naoluoxintong could reduce MCAO/R-induced expression of TLR4, TRAF6 and TNF-α, which might be related to the effects of Naoluoxintong in cerebral ischemia injury.


Asunto(s)
Isquemia Encefálica , Daño por Reperfusión , Animales , Lóbulo Parietal , Ratas , Ratas Sprague-Dawley , Factor 6 Asociado a Receptor de TNF , Receptor Toll-Like 4 , Factor de Necrosis Tumoral alfa
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