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1.
Proc Natl Acad Sci U S A ; 120(45): e2301534120, 2023 Nov 07.
Artículo en Inglés | MEDLINE | ID: mdl-37903257

RESUMEN

L-type voltage-gated calcium (Ca2+) channels (L-VGCC) dysfunction is implicated in several neurological and psychiatric diseases. While a popular therapeutic target, it is unknown whether molecular mechanisms leading to disrupted L-VGCC across neurodegenerative disorders are conserved. Importantly, L-VGCC integrate synaptic signals to facilitate a plethora of cellular mechanisms; however, mechanisms that regulate L-VGCC channel density and subcellular compartmentalization are understudied. Herein, we report that in disease models with overactive mammalian target of rapamycin complex 1 (mTORC1) signaling (or mTORopathies), deficits in dendritic L-VGCC activity are associated with increased expression of the RNA-binding protein (RBP) Parkinsonism-associated deglycase (DJ-1). DJ-1 binds the mRNA coding for the alpha and auxiliary Ca2+ channel subunits CaV1.2 and α2δ2, and represses their mRNA translation, only in the disease states, specifically preclinical models of tuberous sclerosis complex (TSC) and Alzheimer's disease (AD). In agreement, DJ-1-mediated repression of CaV1.2/α2δ2 protein synthesis in dendrites is exaggerated in mouse models of AD and TSC, resulting in deficits in dendritic L-VGCC calcium activity. Finding of DJ-1-regulated L-VGCC activity in dendrites in TSC and AD provides a unique signaling pathway that can be targeted in clinical mTORopathies.


Asunto(s)
Enfermedad de Alzheimer , Esclerosis Tuberosa , Animales , Ratones , Enfermedad de Alzheimer/genética , Calcio/metabolismo , Canales de Calcio Tipo L/genética , Canales de Calcio Tipo L/metabolismo , Dendritas/metabolismo , Mamíferos/metabolismo , Esclerosis Tuberosa/genética
2.
BMC Cancer ; 24(1): 770, 2024 Jun 26.
Artículo en Inglés | MEDLINE | ID: mdl-38926893

RESUMEN

BACKGROUND: Despite the existence of numerous studies investigating the diagnostic potential of blood microRNAs for colorectal cancer, the microRNAs under consideration vary widely, and comparative analysis of their diagnostic value is lacking. Consequently, this systematic review aims to identify the most effective microRNA blood tumor markers to enhance clinical decision-making in colorectal cancer screening. METHOD: A comprehensive search of databases, including PubMed, Embase, Web of Science, Scopus, and Cochrane, was conducted to identify case‒control or cohort studies that examined the diagnostic value of peripheral blood microRNAs in colorectal cancer. Studies were included if they provided sensitivity and specificity data, were published in English and were available between January 1, 2000, and February 10, 2023. The Critical Appraisal Skills Programme (CASP) checklist was employed for quality assessment. A Bayesian network meta-analysis was performed to estimate combined risk ratios (RRs) and 95% confidence intervals (CIs), with results presented via rankograms. This study is registered with the International Platform of Registered Systematic Review and Meta-analysis Protocols (INPLASY), 202,380,092. RESULTS: From an initial pool of 2254 records, 79 met the inclusion criteria, encompassing a total of 90 microRNAs. The seven most frequently studied microRNAs (43 records) were selected for inclusion, all of which demonstrated moderate to high quality. miR-23, miR-92, and miR-21 exhibited the highest sensitivity and accuracy, outperforming traditional tumor markers CA19-9 and CEA in terms of RR values and 95% CI for both sensitivity and accuracy. With the exception of miR-17, no significant difference was observed between each microRNA and CA19-9 and CEA in terms of specificity. CONCLUSIONS: Among the most extensively researched blood microRNAs, miR-23, miR-92, and miR-21 demonstrated superior diagnostic value for colorectal cancer due to their exceptional sensitivity and accuracy. This systematic review and network meta-analysis may serve as a valuable reference for the clinical selection of microRNAs as tumor biomarkers.


Asunto(s)
Biomarcadores de Tumor , Neoplasias Colorrectales , MicroARNs , Humanos , Neoplasias Colorrectales/sangre , Neoplasias Colorrectales/diagnóstico , Neoplasias Colorrectales/genética , Biomarcadores de Tumor/sangre , Biomarcadores de Tumor/genética , MicroARNs/sangre , Metaanálisis en Red , Sensibilidad y Especificidad , Detección Precoz del Cáncer/métodos , Teorema de Bayes
3.
Arch Microbiol ; 205(4): 140, 2023 Mar 25.
Artículo en Inglés | MEDLINE | ID: mdl-36964826

RESUMEN

A macrolide antibiotic, lasiodiplodin was isolated from the endophytic fungus (EF) Lasiodiplodia pseudotheobromae J-10 associated with the medicinal plant Sarcandra glabra. In vitro antifungal assay demonstrated the inhibitory activity of lasiodiplodin against the growth of six phytopathogenic fungi, with the IC50 values ranging between 15.50 and 52.30 µg/mL. The highest antifungal activities were recorded against Exserohilum turcicum, Colletotrichum capsici, and Pestalotiopsis theae, with IC50 values of 15.50, 15.90, and 17.55 µg/mL, respectively. The underlying mechanism of the antifungal activity of lasiodiplodin against E. turcicum included the alteration of its colony morphology and disturbance of its cell membrane integrity. In addition, the optimization of L. pseudotheobromae J-10 culture conditions increased lasiodiplodin yield to 52.33 mg/L from 0.59 mg/L at pre-optimization. This is the first report on the isolation and identification of antifungal compound from the EF L. pseudotheobromae J-10 associated with S. glabra, as well as on the optimization of L. pseudotheobromae J-10 culture conditions to increase lasiodiplodin yield. The results of this study support that lasiodiplodin is a natural compound with high potential bioactivity against phytopathogens, and provide a basis for further study of the EF associated with S. glabra.


Asunto(s)
Plantas Medicinales , Zearalenona , Antifúngicos/farmacología , Zearalenona/farmacología
4.
Pestic Biochem Physiol ; 192: 105421, 2023 May.
Artículo en Inglés | MEDLINE | ID: mdl-37105641

RESUMEN

In this study, we extracted and identified the active components of the Asian citrus psyllid, Diaphorina citri sex pheromones to provide a basis for further development of sex attractants. Under laboratory conditions, mating activity in D. citri started 3 d after emergence, which peaked at 6-7 d, and mating activity had no obvious peak during the observed period 7:00-21:00 h. Additionally, D. citri males were attracted to the emanations from conspecific females, especially to the n-hexane extracts of the pheromone. A total of 17 compounds were identified from the n-hexane extracts of female and male D. citri by gas chromatography-mass spectrometer (GC-MS). Among them, 13 compounds were identified from the female D. citri n-hexane extracts, of which 7 (dichloromethane, acetic acid, toluene, butyl acetate, ethyl carbamoylacetate, α-pinene, and 1-nonanal) were not found in the male D. citri n-hexane extracts. In addition, a total of 33 compounds were identified from the solid phase microextraction (SPME) volatiles of the male and female D. citri adults. Among these, 17 compounds were identified from the female D. citri volatiles, of which 6 (cycloheptatriene, 5-methyl-2-phenylindole, 1-dodecanol, cis-11-hexadecena, dodecyl aldehyde, and nerylacetone) were not identified in the volatiles of the D. citri males. It was found that males were significantly attracted to 0.1-10 µL/mL acetic acid and 1-nonanal with the selection rates ranging from 62.04%-70.56% and 62.22%-67.22%, respectively. Therefore, the results of this study suggest that acetic acid and 1-nonanal might be the active compounds of the female D. citri sex pheromones.


Asunto(s)
Citrus , Hemípteros , Atractivos Sexuales , Femenino , Masculino , Animales , Atractivos Sexuales/farmacología , Conducta Animal , Ácido Acético , Feromonas
5.
Sensors (Basel) ; 23(5)2023 Feb 23.
Artículo en Inglés | MEDLINE | ID: mdl-36904682

RESUMEN

Smart wearable systems for health monitoring are highly desired in personal wisdom medicine and telemedicine. These systems make the detecting, monitoring, and recording of biosignals portable, long-term, and comfortable. The development and optimization of wearable health-monitoring systems have focused on advanced materials and system integration, and the number of high-performance wearable systems has been gradually increasing in recent years. However, there are still many challenges in these fields, such as balancing the trade-off between flexibility/stretchability, sensing performance, and the robustness of systems. For this reason, more evolution is required to promote the development of wearable health-monitoring systems. In this regard, this review summarizes some representative achievements and recent progress of wearable systems for health monitoring. Meanwhile, a strategy overview is presented about selecting materials, integrating systems, and monitoring biosignals. The next generation of wearable systems for accurate, portable, continuous, and long-term health monitoring will offer more opportunities for disease diagnosis and treatment.


Asunto(s)
Telemedicina , Dispositivos Electrónicos Vestibles , Monitoreo Fisiológico
6.
Sensors (Basel) ; 23(16)2023 Aug 21.
Artículo en Inglés | MEDLINE | ID: mdl-37631827

RESUMEN

Zirconium sheet has been widely used in various fields, e.g., chemistry and aerospace. The surface scratches on the zirconium sheets caused by complex processing environment have a negative impact on the performance, e.g., working life and fatigue fracture resistance. Therefore, it is necessary to detect the defect of zirconium sheets. However, it is difficult to detect such scratch images due to lots of scattered additive noise and complex interlaced structural texture. Hence, we propose a framework for adaptively detecting scratches on the surface images of zirconium sheets, including noise removing and texture suppressing. First, the noise removal algorithm, i.e., an optimized threshold function based on dual-tree complex wavelet transform, uses selected parameters to remove scattered and numerous noise. Second, the texture suppression algorithm, i.e., an optimized relative total variation enhancement model, employs selected parameters to suppress interlaced texture. Finally, by connecting disconnection based on two types of connection algorithms and replacing the Gaussian filter in the standard Canny edge detection algorithm with our proposed framework, we can more robustly detect the scratches. The experimental results show that the proposed framework is of higher accuracy.

7.
Sensors (Basel) ; 23(24)2023 Dec 10.
Artículo en Inglés | MEDLINE | ID: mdl-38139586

RESUMEN

Structured light illumination is widely applied for surface defect detection due to its advantages in terms of speed, precision, and non-contact capabilities. However, the high reflectivity of metal surfaces often results in the loss of point clouds, thus reducing the measurement accuracy. In this paper, we propose a novel quaternary categorization strategy to address the high-reflectivity issue. Firstly, we classify the pixels into four types according to the phase map characteristics. Secondly, we apply tailored optimization and reconstruction strategies to each type of pixel. Finally, we fuse point clouds from multi-type pixels to accomplish precise measurements of high-reflectivity surfaces. Experimental results show that our strategy effectively reduces the high-reflectivity error when measuring metal surfaces and exhibits stronger robustness against noise compared to the conventional method.

8.
J Recept Signal Transduct Res ; 42(3): 251-260, 2022 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-33858297

RESUMEN

Papillary thyroid cancer (PTC) is a common tumor malignancy of the endocrine system worldwide. Recently, circular RNAs (circRNAs) have been reported to participate in diverse pathological processes, especially in tumorigenesis. However, the functional role and mechanism of circRNA pleckstrin and Sec7 domain containing 3 (circ-PSD3) in PTC are still unclear. In this study, qRT-PCR results showed that circ-PSD3 was significantly upregulated in PTC tissues and cell lines. Meanwhile, circ-PSD3 overexpression was positively associated with larger tumor size, TNM stage, and lymph node metastasis. Knockdown of circ-PSD3 suppressed the proliferation and invasion of PTC cells. Besides, circ-PSD3 interacted with miR-7-5p to reduce its expression, and methyltransferase like 7B (METTL7B) was verified as a target gene of miR-7-5p. Functionally, inhibition of circ-PSD3 impeded PTC cell proliferation and invasion via targeting miR-7-5p to downregulate METTL7B expression. Taken together, silencing of circ-PSD3 hampered the proliferation and invasion of PTC cells via upregulating the inhibitory effect of miR-7-5p on METTL7B expression. Therefore, circ-PSD3 could be a potential diagnostic biomarker or molecular treatment target for PTC.


Asunto(s)
MicroARNs , Neoplasias de la Tiroides , Proteínas Portadoras , Línea Celular Tumoral , Proliferación Celular/genética , Humanos , MicroARNs/genética , MicroARNs/metabolismo , ARN Circular/genética , Cáncer Papilar Tiroideo/genética , Cáncer Papilar Tiroideo/metabolismo , Cáncer Papilar Tiroideo/patología , Neoplasias de la Tiroides/genética , Neoplasias de la Tiroides/patología
9.
Acta Biochim Biophys Sin (Shanghai) ; 54(1): 99-112, 2022 01 25.
Artículo en Inglés | MEDLINE | ID: mdl-35130633

RESUMEN

Centromere protein M (CENPM) is essential for chromosome separation during mitosis. However, its roles in lung adenocarcinoma (LUAD) progression and metastasis remain unknown. In this study, we aimed to explore the effects of CENPM on LUAD progression as well as the underlying mechanisms. We analyzed the expression of CENPM and its correlation with clinicopathological characteristics using GEO LUAD chip datasets and TCGA dataset. We further investigated the impact of CENPM on LUAD and . In silico analysis and qRT-PCR revealed that CENPM is upregulated in LUAD compared with that in normal lung tissues. Via gain/loss-of-function assays, we further found that CENPM promotes the LUAD cell cycle, cell proliferation, migration and invasion, and inhibits cell apoptosis. The study showed that loss of CENPM inhibits the growth of A549 xenografts. Furthermore, we found that CENPM can promote the phosphorylation of mTOR rather than directly affect the mTOR content. Inhibition of mTOR activity abrogates the promoting effects of CENPM on cell cycle progression, cell proliferation, migration and invasion. Taken together, these results show that CENPM plays an important role in the growth and metastasis of LUAD and may be a promising therapeutic target in LUAD.


Asunto(s)
Adenocarcinoma del Pulmón , Proteínas de Ciclo Celular/genética , Neoplasias Pulmonares , Adenocarcinoma del Pulmón/patología , Movimiento Celular/genética , Proliferación Celular/genética , Regulación Neoplásica de la Expresión Génica , Humanos , Neoplasias Pulmonares/patología , Fosfatidilinositol 3-Quinasas/metabolismo , Proteínas Proto-Oncogénicas c-akt/genética , Proteínas Proto-Oncogénicas c-akt/metabolismo , Transducción de Señal/genética , Serina-Treonina Quinasas TOR/genética , Serina-Treonina Quinasas TOR/metabolismo , Regulación hacia Arriba
10.
Psychol Health Med ; 27(9): 1963-1976, 2022 10.
Artículo en Inglés | MEDLINE | ID: mdl-34619996

RESUMEN

The mental health of individuals has become increasingly important during the novel coronavirus-2019 (COVID-19) pandemic. Given the number of healthcare staff that are helping to treat the victims of COVID-19 all over the world, there is a lack of research concerning the mental health of healthcare staff, and of the prior studies carried out, the research has been relatively descriptive and has not used more sophisticated types of analyses (e.g. latent profile analysis [LPA]). The aim of the present study was to investigate profiles of mental health among Chinese healthcare staff during the COVID-19 pandemic. The sample comprised of 456 healthcare staff, and participants completed an online survey including individual information and their working status during the COVID-19 pandemic. The survey included the Chinese Mental Health Scale (MHS-C), Self-Rating Anxiety Scale (SAS), and Self-Rating Depression Scale (SDS). Utilizing the LPA, two profiles of mental health (good mental health and poor mental health) were identified for Chinese healthcare staff during the COVID-19 pandemic. Compared to those with a good mental health profile, those with poor mental health profile had significantly higher scores on SAS and SDS. Female healthcare staff had higher mental health disturbances than males. Taking care and protecting the mental health of healthcare staff is very important in the fight against COVID-19. The need for employers to implement positive and effective measures among mental healthcare staff is likely to help them to cope better with mental health issues and improve mental health, as well as enhance resilience. Healthcare staff with good mental health can dedicate themselves to better nursing practice and nursing education during the COVID-19 epidemic.


Asunto(s)
COVID-19 , Pandemias , Ansiedad/epidemiología , Ansiedad/psicología , COVID-19/epidemiología , China/epidemiología , Atención a la Salud , Depresión/epidemiología , Depresión/psicología , Femenino , Humanos , Masculino , Salud Mental
11.
Mol Carcinog ; 60(1): 25-37, 2021 01.
Artículo en Inglés | MEDLINE | ID: mdl-33283877

RESUMEN

BACKGROUND: Thyroid carcinoma (TC) has been a global issue for its rapid increasing incidence worldwide. Although most TC was not so aggressive with a good prognosis, treatment against anaplastic TC was relatively limited and the mechanisms are not well elucidated yet. METHODS: TC cell lines (IHH4 and TPC-1) were used. Flow cytometry was used to identify the surface marker of M2-like tumor-associated macrophages (TAMs) from cell culture. Quantitative real-time polymerase chain reaction, western blot analysis, immunostaining, and immunohistochemistry were used to detect the expression of Wnt1, Wnt3a, components of Wnt/ß-catenin pathway, and proliferation/epithelial-mesenchymal transition (EMT)-related proteins. Alkaline phosphatase activity assay, colony formation assay, and transwell assay were used to examine the roles of Wnt1, Wnt3a, and ß-catenin pathway in cell dedifferentiation, proliferation, migration, and invasion of TC cells, respectively. Subcutaneous tumor growth was monitored in nude mice. RESULTS: Coculture with M2-like TAMs facilitated dedifferentiation, proliferation, migration, and invasion in TC cells. EMT and proliferation-related proteins were also promoted in cocultured TC cells. The level of Wnt1 and Wnt3a was increased in the coculture system. Block of Wnt1 or Wnt3a suppressed malignant behaviors in cocultured tumor cells. Furthermore, Wnt1 or Wnt3a knockdown inhibited Wnt/ß-catenin signaling pathway, and suppressed EMT and proliferation-related signals in cocultured tumor cells. Knockdown of Wnt1 or Wnt3a inhibited tumor growth in xenograft model. CONCLUSION: M2-like TAMs promoted dedifferentiation, proliferation, and metastasis of TC by Wnt1 and Wnt3a secretion and ensuing ß-catenin activation.


Asunto(s)
Neoplasias de la Tiroides/patología , Macrófagos Asociados a Tumores/patología , Vía de Señalización Wnt , Proteína Wnt1/metabolismo , Proteína Wnt3A/metabolismo , Animales , Desdiferenciación Celular , Línea Celular Tumoral , Movimiento Celular , Transición Epitelial-Mesenquimal , Femenino , Humanos , Ratones Endogámicos BALB C , Ratones Desnudos , Invasividad Neoplásica/patología , Metástasis de la Neoplasia/patología , Neoplasias de la Tiroides/metabolismo , Macrófagos Asociados a Tumores/metabolismo
12.
J Transl Med ; 19(1): 213, 2021 05 17.
Artículo en Inglés | MEDLINE | ID: mdl-34001135

RESUMEN

Glioma is an extremely aggressive malignant neoplasm of the central nervous system. MicroRNA (miRNA) are known to bind to specific target mRNA to regulate post-transcriptional gene expression and are, therefore, currently regarded as promising biomarkers for glioma diagnosis and prognosis. The aim of the present study was to examine the pathogenesis and potential molecular markers of glioma by comparing the differential expression of miRNA and mRNA between glioma tissue and peritumor brain tissue. We explored the impact of screened core miRNA and mRNA on cell proliferation, invasion, and migration of glioma. An miRNA expression profile dataset (GSE90603) and a transcriptome profile dataset (GSE90598) were downloaded from combined miRNA-mRNA microarray chips in the Gene Expression Omnibus (GEO) database. Overall, 59 differentially expressed miRNAs (DEMs) and 419 differentially expressed genes (DEGs) were identified using the R limma software package. FunRich software was used to predict DEM target genes and miRNA-gene pairs, and Perl software was used to find overlapping genes between DEGs and DEM target genes. There were 129 overlapping genes regulated by nine miRNAs between target genes of the DEMs and DEGs. The Chinese Glioma Genome Atlas(CGGA) was analyzed in order to identify miRNAs with diagnostic and prognostic significance. MiR-139-5p, miR-137, and miR-338-3p were validated to be significantly linked to prognosis in glioma patients. Finally, we validated that miR-139-5p affected glioma malignant biological behavior via targeting gamma-aminobutyric acid A receptor alpha 1(GABRA1) through rescue experiments. Low miR-139-5p expression was correlated with survival probability and World Health Organization (WHO) grade. MiR-139-5p overexpression inhibited cell proliferation, migration, and invasion of glioma in vitro. GABRA1 was identified as a functional downstream target of miR-139-5p. Decreased GABRA1 expression was related to similar biological roles as miR-139-5p overexpression while upregulation of GABRA1 effectively reversed the inhibition effects of miR-139-5p. These results demonstrate a novel axis for miR-139-5p/GABRA1 in glioma progression and provide potential prognostic predictors and therapeutic target for glioma patients.


Asunto(s)
Glioma , MicroARNs , Proliferación Celular/genética , Regulación Neoplásica de la Expresión Génica , Glioma/genética , Humanos , MicroARNs/genética , Pronóstico , Receptores de GABA-A , Transcriptoma
13.
FASEB J ; 34(7): 9755-9770, 2020 07.
Artículo en Inglés | MEDLINE | ID: mdl-32510702

RESUMEN

Regulatory T cells (Tregs) play essential roles in obesity and diabetes. Here, we report a role of Tregs in enhancing ß3-adrenergic receptor agonist CL316243 (CL)-stimulated thermogenic program in subcutaneous adipose tissue (SAT), but not in visceral fat. CL treatment for 7 days increased SAT adipocyte beiging and thermogenic gene expression in male or female mice. Adoptive transfer of Tregs enhanced this CL activity. Such Treg activity lost in male epididymal white adipose tissue (eWAT) and female gonadal gWAT. Adipocyte culture yielded the same conclusion. Tregs enhanced the expression of CL-induced thermogenic genes in SAT from male and female mice. This activity of Tregs reduced or disappeared in adipocytes from eWAT or gWAT. Both CL and Tregs induced much higher UCP-1 (uncoupling protein-1) expression in SAT from females than that from males. A mechanistic study demonstrated a role of Tregs in suppressing the expression of M1 macrophage markers (Tnfa, Il6, iNos, Ip10) and promoting the expression of M2 macrophage markers (Mrc1, Arg1, Il10) in bone-marrow-derived macrophages or in SAT from male or female mice. In female mice with pre-established obesity, Treg adoptive transfer reduced the gWAT weight in 2 weeks. Together with CL treatment, Treg adoptive transfer reduced the SAT weight and further improved CL-induced glucose metabolism and insulin sensitivity in female obese mice, but did not affect CL-induced body weight loss in male or female obese mice. This study revealed a predominant role of Tregs in female mice in promoting adipocyte beiging and thermogenesis in SAT, in part by slanting M2 macrophage polarization.


Asunto(s)
Tejido Adiposo Pardo/patología , Tejido Adiposo Blanco/patología , Obesidad/etiología , Grasa Subcutánea/patología , Linfocitos T Reguladores/inmunología , Termogénesis , Tejido Adiposo Pardo/inmunología , Tejido Adiposo Blanco/inmunología , Animales , Metabolismo Energético , Femenino , Resistencia a la Insulina , Masculino , Ratones , Ratones Endogámicos C57BL , Ratones Obesos , Obesidad/patología , Grasa Subcutánea/inmunología , Linfocitos T Reguladores/patología
14.
FASEB J ; 34(2): 3091-3104, 2020 02.
Artículo en Inglés | MEDLINE | ID: mdl-31909541

RESUMEN

Allergic asthma with high plasma IgE levels is a significant risk factor of human abdominal aortic aneurysm (AAA). This study tests a direct role of IgE in angiotensin-II (Ang-II) perfusion- and peri-aortic CaCl2 injury-induced AAA in mice. In both models, IgE-deficiency in Apoe-/- Ige-/- mice blunts AAA growth and reduces lesion accumulation of macrophages, CD4+ and CD8+ T cells, and lesion MHC class-II expression, CD31+ microvessel growth, and media smooth muscle cell loss, compared with those from Apoe-/- control mice. Real time-PCR reveals significant reductions in expression of neutrophil chemoattractants MIP-2α and CXCL5 in AAA lesions or macrophages from Apoe-/- Ige-/- mice, along with reduced lesion Ly6G+ neutrophil accumulation. Consistent with reduced lesion inflammatory cell accumulation, we find significant reductions of plasma and AAA lesion IL6 expression in Apoe-/- Ige-/- mice. Immunofluorescent staining and FACS analysis show that AAA lesion neutrophils express FcεR1. Mechanistic study demonstrates that IgE induces neutrophil FcεR1 expression, activates MAPK signaling, and promotes IL6 production. This study supports a direct role of IgE in AAA by promoting lesion chemokine expression, inflammatory cell accumulation, MAPK signaling, and cytokine expression. IgE inhibition may represent a novel therapeutic approach in AAA management.


Asunto(s)
Aneurisma de la Aorta Abdominal/inmunología , Inmunoglobulina E/deficiencia , Neutrófilos/metabolismo , Animales , Aneurisma de la Aorta Abdominal/inducido químicamente , Aneurisma de la Aorta Abdominal/genética , Aneurisma de la Aorta Abdominal/prevención & control , Cloruro de Calcio/toxicidad , Quimiocina CXCL2/genética , Quimiocina CXCL2/metabolismo , Inmunoglobulina E/inmunología , Interleucina-6/genética , Interleucina-6/metabolismo , Ratones , Ratones Noqueados para ApoE , Neutrófilos/patología , Receptores de IgE/genética , Receptores de IgE/metabolismo
15.
Arterioscler Thromb Vasc Biol ; 40(3): 597-610, 2020 03.
Artículo en Inglés | MEDLINE | ID: mdl-31996021

RESUMEN

OBJECTIVE: By binding to its high-affinity receptor FcεR1, IgE activates mast cells, macrophages, and other inflammatory and vascular cells. Recent studies support an essential role of IgE in cardiometabolic diseases. Plasma IgE level is an independent predictor of human coronary heart disease. Yet, a direct role of IgE and its mechanisms in cardiometabolic diseases remain incompletely understood. Approach and Results: Using atherosclerosis prone Apoe-/- mice and IgE-deficient Ige-/- mice, we demonstrated that IgE deficiency reduced atherosclerosis lesion burden, lesion lipid deposition, smooth muscle cell and endothelial cell contents, chemokine MCP (monocyte chemoattractant protein)-1 expression and macrophage accumulation. IgE deficiency also reduced bodyweight gain and increased glucose and insulin sensitivities with significantly reduced plasma cholesterol, triglyceride, insulin, and inflammatory cytokines and chemokines, including IL (interleukin)-6, IFN (interferon)-γ, and MCP-1. From atherosclerotic lesions and peritoneal macrophages from Apoe-/-Ige-/- mice that consumed an atherogenic diet, we detected reduced expression of M1 macrophage markers (CD68, MCP-1, TNF [tumor necrosis factor]-α, IL-6, and iNOS [inducible nitric oxide synthase]) but increased expression of M2 macrophage markers (Arg [arginase]-1 and IL-10) and macrophage-sterol-responsive-network molecules (complement C3, lipoprotein lipase, LDLR [low-density lipoprotein receptor]-related protein 1, and TFR [transferrin]) that suppress macrophage foam cell formation. These IgE activities can be reproduced in bone marrow-derived macrophages from wild-type mice, but muted in cells from FcεR1-deficient mice, or blocked by anti-IgE antibody or complement C3 deficiency. CONCLUSIONS: IgE deficiency protects mice from diet-induced atherosclerosis, obesity, glucose tolerance, and insulin resistance by regulating macrophage polarization, macrophage-sterol-responsive-network gene expression, and foam cell formation.


Asunto(s)
Aorta/metabolismo , Aterosclerosis/metabolismo , Células Espumosas/metabolismo , Inmunoglobulina E/metabolismo , Inflamación/metabolismo , Activación de Macrófagos , Macrófagos Peritoneales/metabolismo , Obesidad/metabolismo , Animales , Aorta/inmunología , Aorta/patología , Aterosclerosis/inmunología , Aterosclerosis/patología , Aterosclerosis/prevención & control , Glucemia/metabolismo , Células Cultivadas , Citocinas/metabolismo , Modelos Animales de Enfermedad , Células Espumosas/inmunología , Células Espumosas/patología , Redes Reguladoras de Genes , Inmunoglobulina E/deficiencia , Inmunoglobulina E/genética , Inflamación/inmunología , Inflamación/patología , Inflamación/prevención & control , Mediadores de Inflamación/metabolismo , Resistencia a la Insulina , Macrófagos Peritoneales/inmunología , Macrófagos Peritoneales/patología , Masculino , Ratones Endogámicos C57BL , Ratones Noqueados para ApoE , Obesidad/inmunología , Obesidad/patología , Obesidad/prevención & control , Fenotipo , Placa Aterosclerótica , Receptores de IgE/genética , Receptores de IgE/metabolismo , Transducción de Señal , Esteroles/metabolismo
16.
Clin Lab ; 67(3)2021 Mar 01.
Artículo en Inglés | MEDLINE | ID: mdl-33739040

RESUMEN

BACKGROUND: Recent research has suggested that long non-coding RNA (lncRNA) is involved in the tumorigenesis and development of breast cancer (BC). This meta-analysis aimed to identify the diagnostic role of lncRNAs in BC. METHODS: All relevant studies were systematically searched through PubMed, Web of Science, Cochrane Library, and EMBASE databases. The diagnostic values of lncRNAs were mainly assessed by pooled sensitivity (SEN), specificity (SPE), and summary receiver operating characteristic area under the curve (SROC AUC). Meta-DiSc 1.4, Review Manager 5.3 and STATA 12.0 were used for statistical analysis. RESULTS: A total of 24 eligible studies were included in this meta-analysis. The pooled SEN, SPE, and AUC were 0.75 (95% CI: 0.68 - 0.81), 0.77 (95% CI: 0.70 - 0.82), and 0.82 (95% CI: 0.79 - 0.86), respectively, suggesting that the lncRNAs test had a high accuracy for the diagnosis of BC. Obvious heterogeneity might come from the dysregulated state of lncRNAs through subgroup and meta-regression analysis (p < 0.001). Fagan diagram showed clinical value of lncRNAs test in BC. CONCLUSIONS: Abnormal expression of lncRNAs exhibits a high efficacy for diagnosing BC, which is promising in clinical application.


Asunto(s)
Neoplasias de la Mama , ARN Largo no Codificante , Área Bajo la Curva , Biomarcadores de Tumor/genética , Biomarcadores de Tumor/metabolismo , Neoplasias de la Mama/diagnóstico , Neoplasias de la Mama/genética , Femenino , Humanos , ARN Largo no Codificante/genética , Curva ROC
17.
J Nanosci Nanotechnol ; 19(9): 5914-5920, 2019 09 01.
Artículo en Inglés | MEDLINE | ID: mdl-30961758

RESUMEN

Magnetic Ni0.4Co0.2Zn0.4Fe2O4 nanoparticles were prepared via the rapid combustion process, the morphology and magnetic property of them were investigated by SEM, TEM, XRD, VSM, and FTIR. The as-prepared magnetic Ni0.4Co0.2Zn0.4Fe2O4 nanoparticles calcined at 400 °C for 2 h with absolute alcohol of 20 mL were characterized with the average nanoparticle size of around 25 nm and the specific magnetization of 35.2 emu/g. The adsorption kinetics and adsorption isotherms of Congo red (CR) from aqueous solutions onto Ni0.4Co0.2Zn0.4Fe2O4 nanoparticles were investigated by UV spectroscopy at room temperature; the adsorption kinetics data were in good agreement with the pseudo-second-order kinetic model in the initial CR concentrations of 200-500 mg/L. By comparison of Langmuir, Freundlich and Temkin models for adsorption isotherms of CR, the Temkin model (correlation coefficient R2 = 0.9969) could be used to evaluate the adsorption isotherm of CR onto the magnetic Ni0.4Co0.2Zn0.4Fe2O4 nanoparticles at room temperature, which suggested that the adsorption of CR onto the magnetic Ni0.4Co0.2Zn0.4Fe2O4 nanoparticles was a hybrid of monolayer and multilayer absorbing mechanism.

18.
Appl Opt ; 58(10): 2556, 2019 Apr 01.
Artículo en Inglés | MEDLINE | ID: mdl-31045054

RESUMEN

This publisher's note amends the funding in Appl. Opt.58, 227 (2019)APOPAI0003-693510.1364/AO.58.000227.

19.
Appl Opt ; 58(2): 227-233, 2019 Jan 10.
Artículo en Inglés | MEDLINE | ID: mdl-30645298

RESUMEN

This paper presents a calculation method of chromatic aberration of such kinds of optical systems based on the aberration theory of plane-symmetric optical systems, and the analytic expressions of the axial chromatic aberration and chromatic change in the magnification at an image plane of any position are derived. The resultant expressions are used to calculate the chromatic aberration of two single-lens optical systems with a large incidence angle, and the calculation results are compared to the ones obtained from a ray-tracing program to validate the chromatic aberration expressions. The study shows that the calculation accuracy of the chromatic aberration expressions is satisfactory. The analytical analysis of chromatic aberration is helpful in the imaging analysis and design of plane-symmetric optical systems.

20.
IUBMB Life ; 70(6): 536-546, 2018 06.
Artículo en Inglés | MEDLINE | ID: mdl-29707897

RESUMEN

In this study, we aimed at investigating effects of lncRNA ADAMTS9-AS2 on lung cancer progression through regulating miR-223-3p and TGFBR3 expressions. Expressions of ADAMTS9-AS2 in lung cancer tissues and cell lines were determined by reverse transcriptase polymerase chain reaction (qRT-PCR). TargetScan and miRcode were used to predict the targeting relationships, respectively. The luciferase reporter system was used to verify that the relationship among ADAMTS9-AS2, TGFBR3 and miR-223-3p. Western blot assay tested the protein level changes in TGFBR3. Cell proliferation was determined by CCK-8 assay. Cell cycle and cell apoptosis were detected by flow cytometry assay, and migration and invasion were determined by transwell assay. Tumor xenograft model was developed to study the influence of ADAMTS9-AS2 on tumor growth in vivo. qRT-PCR results demonstrated that lncADAMTS9-AS2 was lowly expressed in lung cancer tissues. High expression of ADAMTS9-AS2 in lung cancer cells significantly reduced proliferation ability and inhibited migration, as well as elevating their apoptosis rate. In vivo assay found that ADAMTS9-AS2 suppressed the lung tumor growth. Bioinformatics predicted that miR-223-3p bound directly to the ADAMTS9-AS2 and TGFBR3, which was later confirmed by luciferase reporter system. ADAMTS9-AS2 transfection increased TGFBR3 mRNA and protein expressions in lung cancer cells, but miR-223-3p transfection significantly decreased them. Besides, our results showed that miR-223-3p induced cellular apoptosis while TGFBR3 group showed the complete opposite effect. It was proved that ADAMTS9-AS2 and TGFBR3 were the direct genes of miR-223-3p. MiR-223-3p promotes proliferation, migration and invasion of lung cancer cells by targeting TGFBR3. Therefore, ADAMTS9-AS2, miR-223-3p and TGFBR3 may provide potential targets for the treatment of lung cancer patients. © 2018 IUBMB Life, 70(6):536-546, 2018.


Asunto(s)
Biomarcadores de Tumor/metabolismo , Regulación Neoplásica de la Expresión Génica , Neoplasias Pulmonares/patología , MicroARNs/genética , Proteoglicanos/metabolismo , ARN Largo no Codificante/genética , Receptores de Factores de Crecimiento Transformadores beta/metabolismo , Animales , Apoptosis , Biomarcadores de Tumor/genética , Proliferación Celular , Progresión de la Enfermedad , Estudios de Seguimiento , Humanos , Neoplasias Pulmonares/genética , Neoplasias Pulmonares/metabolismo , Ratones , Ratones Desnudos , Pronóstico , Proteoglicanos/genética , Receptores de Factores de Crecimiento Transformadores beta/genética , Transducción de Señal , Células Tumorales Cultivadas , Regulación hacia Arriba , Ensayos Antitumor por Modelo de Xenoinjerto
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