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1.
Fish Shellfish Immunol ; 132: 108457, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36455780

RESUMO

Infectious hematopoietic necrosis virus (IHNV) and infectious pancreatic necrosis virus (IPNV) are typical pathogens of rainbow trout Oncorhynchus mykiss, and the concurrent infection of the two viruses is very common among modern trout hatcheries, which has caused huge economic losses to the rainbow trout farming industry. To prevent and control the spread of IHNV and IPNV in juvenile trout simultaneously, in this study a bivalent recombinant adenovirus vaccine with IHNV Glycoprotein (G) and IPNV VP2 genes was developed. After immunizing juvenile trout with this bivalent vaccine via the immersion route, the expression levels of IHNV G and IPNV VP2 and the representative immune genes in vaccinated and control rainbow trout were tested to evaluate the correlation of immune responses with the expression of viral genes. The neutralizing antibody level induced by this bivalent vaccine as well as the protection efficacy of the vaccine against IHNV and IPNV was also evaluated. The results showed that IHNV G and IPNV VP2 were successfully expressed in juvenile trout, and all the innate and adaptive immune genes were up-regulated. This indicated that the level of the innate and adaptive immune responses were significantly increased, which might be induced by the high expression of the two viral proteins. Compared with the controls, high levels of neutralizing antibodies against IHNV and IPNV were induced in the vaccinated trout. Besides, the bivalent recombinant adenovirus vaccine showed high protection rate against IHNV, with the relative percent survival (RPS) of 81.25%, as well as against IPNV, with the RPS of 78.95%. Taken together, our findings clearly demonstrated that replication-defective adenovirus can be developed as a qualified vector for fish vaccines and IHNV G and IPNV VP2 were two suitable antigenic genes that could induce effective immune protection against these two pathogens. This study provided new insights into developing bivalent vectored vaccines and controlling the spread of IHNV and IPNV simultaneously in juvenile trout.


Assuntos
Vacinas contra Adenovirus , Infecções por Birnaviridae , Doenças dos Peixes , Vírus da Necrose Hematopoética Infecciosa , Vírus da Necrose Pancreática Infecciosa , Oncorhynchus mykiss , Infecções por Rhabdoviridae , Vacinas Virais , Animais , Vírus da Necrose Pancreática Infecciosa/fisiologia , Vírus da Necrose Hematopoética Infecciosa/fisiologia , Vacinas Sintéticas , Adenoviridae/genética , Infecções por Rhabdoviridae/prevenção & controle , Infecções por Rhabdoviridae/veterinária , Infecções por Birnaviridae/prevenção & controle , Infecções por Birnaviridae/veterinária
2.
Fish Shellfish Immunol ; 142: 109143, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37827249

RESUMO

Pattern recognition receptors (PRRs) play a crucial role in the recognition and activation of innate immune responses against invading microorganisms. This study characterizes a novel C-type lectin (CTL), SpccCTL. The cDNA sequence of SpccCTL has a full length of 1744 bp encoding a 338-amino acid protein. The predicted protein contains a signal peptide, a coiled-coil (CC) domain, and a CLECT domain. It shares more than 50 % similarity with a few CTLs with a CC domain in crustaceans. SpccCTL is highly expressed in gills and hemocytes and upregulated after MCRV challenge, suggesting that it may be involved in antiviral immunity. Recombinant SpccCTL (rSpccCTL) as well as two capsid proteins of MCRV (VP11 and VP12) were prepared. Pre-incubating MCRV virions with rSpccCTL significantly suppresses the proliferation of MCRV in mud crabs, compared with the control (treatment with GST protein), and the survival rate of mud crabs is also significantly decreased. Knockdown of SpccCTL significantly facilitates the proliferation of MCRV in mud crabs. These results reveal that SpccCTL plays an important role in antiviral immune response. GST pull-down assay result shows that rSpccCTL interacts specifically with VP11, but not to VP12. This result is further confirmed by a Co-IP assay. In addition, we found that silencing SpccCTL significantly inhibits the expression of four antimicrobial peptides (AMPs). Considering that these AMPs are members of anti-lipopolysaccharide factor family with potential antiviral activity, they are likely involved in immune defense against MCRV. Taken together, these findings clearly demonstrate that SpccCTL can recognize MCRV by binding viral capsid protein VP11 and regulate the expression of certain AMPs, suggesting that SpccCTL may function as a potential PRR playing an essential role in anti-MCRV immunity of mud crab. This study provides new insights into the antiviral immunity of crustaceans and the multifunctional characteristics of CTLs.


Assuntos
Braquiúros , Animais , Proteínas de Transporte/genética , Proteínas Virais/genética , Lectinas Tipo C/genética , Lectinas Tipo C/metabolismo , Imunidade Inata/genética , Sinais Direcionadores de Proteínas/genética , Proteínas de Artrópodes , Filogenia
3.
Int J Mol Sci ; 23(18)2022 Sep 07.
Artigo em Inglês | MEDLINE | ID: mdl-36142251

RESUMO

Phagocytosis is crucial in tumor surveillance and immune function. The association between phagocytosis and the outcomes of breast cancer patients has not been well-determined. In this study, data were downloaded from the cancer genome atlas (TCGA) and gene expression omnibus (GEO) databases to investigate the role of phagocytosis in breast cancer. Data from the TCGA and GEO databases were used to investigate the prognostic role of phagocytosis in breast cancer. Then, we performed pathway enrichment analysis, copy number variation (CNV) and single-nucleotide variant (SNV) analyses, immune infiltration analysis, calculation of tumor purity, stromal score, and immune score, and consistent clustering. We also constructed a phagocytosis-regulators-based signature system to examine its association in survival and drug response. The genomic and expression differences in the phagocytosis regulators in breast cancer were systematically analyzed, explaining the widespread dysregulation of phagocytosis regulators. Using the investigated association of phagocytosis regulators with the prognosis and tumor immune environment, we constructed a prognostic model based on phagocytosis regulators. We discovered that patients with high risk scores had a poor prognosis and were negatively associated with immune functions. The model had preferential predictive performance and significantly consistent drug-resistance prediction results. Our findings suggest that the phagocytosis-factors-based scoring system can be used as a novel prognostic factor, serving as a powerful reference tool for predicting prognosis and developing methods against drug resistance.


Assuntos
Neoplasias da Mama , Neoplasias da Mama/tratamento farmacológico , Neoplasias da Mama/genética , Variações do Número de Cópias de DNA , Feminino , Regulação Neoplásica da Expressão Gênica , Humanos , Nucleotídeos , Fagocitose/genética
4.
Inorg Chem ; 60(11): 7937-7951, 2021 Jun 07.
Artigo em Inglês | MEDLINE | ID: mdl-34015217

RESUMO

On the basis of the lanthanide metalloligand [Ln(ODA)3]3- (H2ODA = oxydiacetic acid), three new Na-Ln heterometallic coordination polymers, [Ln(ODA)3Na2]n [Ln = Eu (1) and Gd (2)] and [Tb(ODA)3Na3(H2O)2]n (3), had been assembled by adjusting the concentration of Na+ ions in the reaction system. The investigations of fluorescence sensing showed that 1 could be a ratiometric probe to detect tetracycline (TC) and oxytetracycline (OTC) with high sensitivity and low detection limits, 71.92 ppb for the former and 45.54 ppb for the latter, and 3 could selectively sense 4-(phenylazo)aniline through the turn-off pathway with 14.59 ppb of detection limits. Moreover, the competing and circulating experiments indicated that both 1 and 3 had satisfactory antiinterference and recyclability for the corresponding analytes. All of these results implied that 1 and 3 should be potential fluorescent sensors for the detection of TC/OTC and 4-(phenylazo)aniline, and the possible sensing mechanism had also been discussed in depth.


Assuntos
Compostos de Anilina/análise , Antibacterianos/análise , Complexos de Coordenação/química , Elementos da Série dos Lantanídeos/química , Polímeros/química , Sódio/química , Tetraciclina/análise , Complexos de Coordenação/síntese química , Modelos Moleculares , Estrutura Molecular
5.
Future Oncol ; 17(1): 71-80, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-33397130

RESUMO

Background: The study aimed at identifying a metabolic gene signature for stratifying the risk of recurrence in breast cancer. Materials & methods: The data of patients were obtained from the Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) database. The limma package was used to identify differentially expressed metabolic genes, and a metabolic gene signature was constructed. Results: A five-gene metabolic signature was established that demonstrated satisfactory accuracy and predictive power in both training and validation cohorts. Also, a nomogram for predicting recurrence-free survival was established using a combination of the metabolism gene risk score and the clinicopathological features. Conclusions: The proposed metabolic gene signature and nomogram have a significant prognostic value and may improve the recurrence risk stratification for breast cancer patients.


Assuntos
Biomarcadores Tumorais/genética , Neoplasias da Mama/terapia , Redes e Vias Metabólicas/genética , Recidiva Local de Neoplasia/epidemiologia , Nomogramas , Idoso , Mama/patologia , Mama/cirurgia , Neoplasias da Mama/genética , Neoplasias da Mama/metabolismo , Neoplasias da Mama/mortalidade , Conjuntos de Dados como Assunto , Intervalo Livre de Doença , Feminino , Perfilação da Expressão Gênica , Humanos , Margens de Excisão , Mastectomia , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/genética , Recidiva Local de Neoplasia/metabolismo , Valor Preditivo dos Testes , Radioterapia Adjuvante/estatística & dados numéricos , Estudos Retrospectivos , Medição de Risco/métodos
6.
Food Microbiol ; 90: 103494, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32336371

RESUMO

P. psychrophila is implicated in fish spoilage especially under cold storage. In the present study, tandem mass tag (TMT) quantitative proteomic analysis was performed to clarify the molecular mechanism for the inhibitory effect of chitosan oligosaccharides (COS) against P. psychrophila in fish juice system. The MIC and MBC of the COS against P. psychrophila were 6 and 8 mg/mL, respectively. Compared with the untreated control, a total of 370 proteins (163 up-regulated and 207 down-regulated) were identified as differentially expressed proteins (DEPs, >1.5-fold or < 0.67-fold, P < 0.05) in P. psychrophila when exposed to 6 mg/mL COS. Bioinformatics analysis indicated that the DEPs were mainly involved in the cell wall/membrane, cell motility, and electron-transport chain; DNA replication, RNA transcription and translation, posttranslational modifications of proteins; TCA cycle, and the transport and metabolism of amino acid, carbohydrate, and ion. The scanning electron microscope (SEM) and fourier-transform infrared spectroscopy (FT-IR) analysis further validated that cell structure especially the cell wall/membrane was damaged after COS treatment. The results in this study presented an important step toward understanding the response of P. psychrophila cells to COS at the proteome level.


Assuntos
Quitosana/farmacologia , Peixes/microbiologia , Oligossacarídeos/farmacologia , Proteômica/métodos , Pseudomonas/genética , Animais , Membrana Celular/efeitos dos fármacos , Replicação do DNA/efeitos dos fármacos , Oligossacarídeos/química , Biossíntese de Proteínas/efeitos dos fármacos , Pseudomonas/química , Pseudomonas/efeitos dos fármacos , Transcrição Gênica/efeitos dos fármacos
7.
Inorg Chem ; 57(9): 5560-5566, 2018 May 07.
Artigo em Inglês | MEDLINE | ID: mdl-29634244

RESUMO

We have demonstrated that natural sugars can efficiently exfoliate inorganic layered nanomaterials with direct stirring. The representative transition-metal dichalcogenides (MoS2 and WS2), transition-metal oxide (MoO3), and graphene were explored, and the formation of ultrathin nanosheets was verified. Glucose and MoS2 selected each other as the perfect partner with superior exfoliation and excellent properties. The obtained inorganic layered nanosheets possess favorable stability and dispersity, which renders it suitable for direct homogeneous liquid applications, such as catalytic activities and sensors. With a high-throughput and green process, the sugar-assisted method may offer new ideas for inorganic layered nanomaterials synthesis and applications in a more ecofriendly way.

8.
Mikrochim Acta ; 185(1): 7, 2017 12 02.
Artigo em Inglês | MEDLINE | ID: mdl-29594417

RESUMO

The authors have discovered that vanadium disulfide (VS2) nanosheets, synthesized by a hydrothermal method, exert stable peroxidase-like activity. The catalytic activity, with H2O2 as a cosubstrate, follows Michaelis-Menten kinetics and varies with temperature, pH value and H2O2 concentration. Two-dimensional VS2 sheets acting as peroxidase (POx) mimics can replace horseradish peroxidase due to their availability, robustness, and reusability. The POx-like activity of VS2 sheets was exploited to design a colorimetric glucose assay by using 3,3',5,5'-tetramethylbenzidine as a substrate and by working at an analytical wavelength of 652 nm. The assay covers the 5 to 250 µM glucose concentration range with a 1.5 µM detection limit. It was applied to the analysis of glucose in fruit juice. In our perception, the peroxidase-like nanozyme out of the family of transition metal dichalcogenides presented here has a wide scope in that it may stimulate promising biocatalytic applications in biotechnology and analytical chemistry. Graphical abstract Layered VS2 nanosheets were prepared via hydrothermal synthesis and are shown to exert superior peroxidase-mimicking activity. Using these POx nano-mimics, a sensitive colorimetric assay for glucose was developed and applied to fruit juice analysis. This work unlocks the access of VS2 to biocatalysis and bioassays.


Assuntos
Colorimetria/métodos , Glucose/análise , Peroxidase do Rábano Silvestre/química , Nanopartículas Metálicas/química , Compostos de Vanádio/química , Benzidinas/química , Biocatálise , Materiais Biomiméticos/química , Técnicas Biossensoriais/métodos , Peróxido de Hidrogênio/química , Cinética , Limite de Detecção , Oxirredução
9.
Cell Physiol Biochem ; 40(5): 1063-1078, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27960153

RESUMO

BACKGROUND/AIMS: Chronic lung infection in cystic fibrosis leads to an inflammatory response that persists because of the chronic presence of bacteria and ultimately leads to a catastrophic failure of lung function. METHODS: We use a combination of biochemistry, cell and molecular biology to study the interaction of TRADD, a key adaptor molecule in TNFα signaling, with CFTR in the regulation of NFκB. RESULTS: We show that Wt CFTR binds to and colocalizes with TRADD. TRADD is a key signaling intermediate connecting TNFα with activation of NFκB. By contrast, ΔF508 CFTR does not bind to TRADD. NF-κB activation is higher in CFBE expressing ΔF508 CFTR than in cells expressing Wt CFTR. However, this differential effect is abolished when TRADD levels are knocked down. Transfecting Wt CFTR into CFBE cells reduces NF-κB activity. However the reduction is abolished by the CFTR chloride transport inhibitor-172. Consistently, transfecting in the correctly trafficked CFTR conduction mutants G551D or S341A also fail to reduce NFκB activity. Thus CFTR must be functional if it is to regulate NF-κB activity. We also found that TNFα produced a greater increase in NF-κB activity in CFBE cells than in the same cell when Wt CFTR-corrected. Consistently, the effect is also abolished when TRADD is knocked down by shRNA. Thus, Wt CFTR control of TRADD modulates the physiological activation of NF-κB by TNFα. Based on studies with proteosomal and lysosomal inhibitors, the mechanism by which Wt CFTR, but not ΔF508 CFTR, suppresses TRADD is by lysosomal degradation. CONCLUSION: We have uncovered a novel mechanism whereby Wt CFTR regulates TNFα signaling by enhancing TRADD degradation. Thus by reducing the levels of TRADD, Wt CFTR suppresses downstream proinflammatory NFκB signaling. By contrast, suppression of NF-κB activation fails in CF cells expressing ΔF508 CFTR.


Assuntos
Regulador de Condutância Transmembrana em Fibrose Cística/metabolismo , NF-kappa B/metabolismo , Proteólise , Proteína de Domínio de Morte Associada a Receptor de TNF/metabolismo , Proteínas Adaptadoras de Transdução de Sinal , Proteínas de Transporte/metabolismo , Linhagem Celular , Movimento Celular/efeitos dos fármacos , Proteínas da Matriz do Complexo de Golgi , Células HEK293 , Humanos , Proteínas de Membrana/metabolismo , Proteínas de Membrana Transportadoras , Ligação Proteica/efeitos dos fármacos , Proteólise/efeitos dos fármacos , Fatores de Tempo , Fator de Necrose Tumoral alfa/farmacologia
10.
Water Sci Technol ; 74(3): 672-80, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27508372

RESUMO

Sewage sludge is a by-product generated from municipal wastewater treatment (WWT) processes. This study examines the conversion of sludge via energy recovery from gasification/combustion for thermal treatment of dewatered sludge. The present analysis is based on a chemical equilibrium model of thermal conversion of previously dewatered sludge with moisture content of 60-80%. Prior to combustion/gasification, sludge is dried to a moisture content of 25-55% by two processes: (1) heat recovered from syngas/flue gas cooling and (2) heat recovered from syngas combustion. The electricity recovered from the combined heat and power process can be reused in syngas cleaning and in the WWT plant. Gas temperature, total heat and electricity recoverable are evaluated using the model. Results show that generation of electricity from dewatered sludge with low moisture content (≤ 70%) is feasible within a self-sufficient sludge treatment process. Optimal conditions for gasification correspond to an equivalence ratio of 2.3 and dried sludge moisture content of 25%. Net electricity generated from syngas combustion can account for 0.071 kWh/m(3) of wastewater treated, which is up to 25.4-28.4% of the WWT plant's total energy consumption.


Assuntos
Esgotos/química , Águas Residuárias/química , Purificação da Água/instrumentação , Eletricidade , Temperatura Alta , Temperatura , Purificação da Água/métodos
11.
J Biol Chem ; 289(52): 35953-68, 2014 Dec 26.
Artigo em Inglês | MEDLINE | ID: mdl-25384981

RESUMO

Cystic fibrosis (CF) is due to a folding defect in the CF transmembrane conductance regulator (CFTR) protein. The most common mutation, ΔF508, prevents CFTR from trafficking to the apical plasma membrane. Here we show that activation of the PDK1/SGK1 signaling pathway with C4-ceramide (C4-CER), a non-toxic small molecule, functionally corrects the trafficking defect in both cultured CF cells and primary epithelial cell explants from CF patients. The mechanism of C4-CER action involves a series of mutual autophosphorylation and phosphorylation events between PDK1 and SGK1. Detailed mechanistic studies indicate that C4-CER initially induces autophosphorylation of SGK1 at Ser(422). SGK1[Ser(P)(422)] and C4-CER coincidently bind PDK1 and permit PDK1 to autophosphorylate at Ser(241). Then PDK1[Ser(P)(241)] phosphorylates SGK1[Ser(P)(422)] at Thr(256) to generate fully activated SGK1[Ser(422), Thr(P)(256)]. SGK1[Ser(P)(422),Thr(P)(256)] phosphorylates and inactivates the E3 ubiquitin ligase Nedd4-2. ΔF508-CFTR is thus free to traffic to the plasma membrane. Importantly, C4-CER-mediated activation of both PDK1 and SGK1 is independent of the PI3K/Akt/mammalian target of rapamycin signaling pathway. Physiologically, C4-CER significantly increases maturation and stability of ΔF508-CFTR (t½ ∼10 h), enhances cAMP-activated chloride secretion, and suppresses hypersecretion of interleukin-8 (IL-8). We suggest that candidate drugs for CF directed against the PDK1/SGK1 signaling pathway, such as C4-CER, provide a novel therapeutic strategy for a life-limiting disorder that affects one child, on average, each day.


Assuntos
Ceramidas/farmacologia , Regulador de Condutância Transmembrana em Fibrose Cística/metabolismo , Proteínas Imediatamente Precoces/metabolismo , Proteínas Serina-Treonina Quinases/metabolismo , Linhagem Celular , Membrana Celular/metabolismo , Fibrose Cística/tratamento farmacológico , Regulador de Condutância Transmembrana em Fibrose Cística/genética , Avaliação Pré-Clínica de Medicamentos , Complexos Endossomais de Distribuição Requeridos para Transporte/metabolismo , Ativação Enzimática/efeitos dos fármacos , Humanos , Interleucina-8/metabolismo , Ubiquitina-Proteína Ligases Nedd4 , Fosfatidilinositol 3-Quinases/metabolismo , Fosforilação , Processamento de Proteína Pós-Traducional , Estabilidade Proteica , Transporte Proteico , Piruvato Desidrogenase Quinase de Transferência de Acetil , Deleção de Sequência , Transdução de Sinais , Relação Estrutura-Atividade , Ubiquitina-Proteína Ligases/metabolismo
12.
Zhonghua Bing Li Xue Za Zhi ; 44(8): 594-9, 2015 Aug.
Artigo em Zh | MEDLINE | ID: mdl-26705185

RESUMO

OBJECTIVE: To investigate the clinicopathological significance of Twist and YB-1 up-regulation in cervical cancer, and to correlate the expression of the two genes with E-cadherin, a marker of epithelial-mesenchymal transition (EMT). METHODS: A total of 202 tissue samples were collected during January 2008 to December 2013, including 50 cases of normal cervical tissues, 100 cases of cervical intraepithelial neoplasia (CIN) and 52 cases of squamous cell carcinoma (SCC). Twist, YB-1 and E-cadherin expression was investigated by MaxVision. RESULTS: Increased expression levels of Twist and YB-1 were found and correlated with the malignant transformation of cervical epithelium, histological progression and metastasis of cervical cancer. In addition, Twist and YB-1 overexpression was also associated with aberrant expression of E-cadherin. Regression analysis revealed that Twist expression was an independent factor for the histological progression of cervical cancer. CONCLUSIONS: It is suggested that Twist and YB-1 overexpression is significantly linked to cervical cancer tumorigenesis and progression, likely related to EMT through (YB-1)-Twist-(E-cadherin) pathway. Twist and YB-1 may be markers for determining the metastatic potential of cervical cancer.


Assuntos
Transição Epitelial-Mesenquimal , Proteínas Nucleares/metabolismo , Proteína 1 Relacionada a Twist/metabolismo , Neoplasias do Colo do Útero/metabolismo , Neoplasias do Colo do Útero/patologia , Proteína 1 de Ligação a Y-Box/metabolismo , Antígenos CD , Biomarcadores Tumorais/genética , Biomarcadores Tumorais/metabolismo , Caderinas/genética , Caderinas/metabolismo , Carcinoma de Células Escamosas/metabolismo , Carcinoma de Células Escamosas/patologia , Transformação Celular Neoplásica , Progressão da Doença , Epitélio/patologia , Feminino , Regulação Neoplásica da Expressão Gênica , Humanos , Proteínas Nucleares/genética , Proteína 1 Relacionada a Twist/genética , Regulação para Cima , Proteína 1 de Ligação a Y-Box/genética , Displasia do Colo do Útero/metabolismo , Displasia do Colo do Útero/patologia
13.
Suicide Life Threat Behav ; 54(2): 349-360, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38284480

RESUMO

OBJECTIVE: Sleep problems are a significant risk factor for identifying and preventing suicidal involvement among adolescents. However, there is limited evidence to assess the underlying mechanisms between them. This study investigated the longitudinal relationship between sleep problems and suicidal behavior and examined whether this relationship was moderated by negative emotions, low self-control, and nonsuicidal self-injury (NSSI). METHODS: From December 2020 onward, we assessed 1214 Chinese secondary school adolescents (60.7% were boys, aged 13-19 years) three times, 6 months apart. RESULTS: In the direct effects model, sleep problems were found to have a positive impact on adolescent suicidal behavior. In the indirect effects model, we observed that sleep problems were associated with an elevated risk of suicidal behavior through several pathways: one-mediator path of negative emotions, low self-control, and NSSI, respectively; two-mediator path of negative emotions via low self-control, negative emotions via NSSI, and low self-control via NSSI, and three-mediator path from negative emotions to NSSI via low self-control. CONCLUSIONS: This longitudinal study provides evidence that sleep problems in adolescents may increase suicidal behavior by exacerbating negative emotions, weakening self-control, and promoting NSSI. The findings suggest sleep problems should be addressed in suicide prevention and intervention efforts for adolescents.


Assuntos
Autocontrole , Comportamento Autodestrutivo , Transtornos do Sono-Vigília , Masculino , Humanos , Adolescente , Feminino , Ideação Suicida , Estudos Longitudinais , Comportamento Autodestrutivo/psicologia , Emoções , Transtornos do Sono-Vigília/complicações
14.
Aging (Albany NY) ; 16(3): 2953-2977, 2024 02 07.
Artigo em Inglês | MEDLINE | ID: mdl-38329443

RESUMO

OBJECTIVE: The extracellular phosphoprotein, secreted phosphoprotein 1 (SPP1), plays a crucial role in various tumors and regulating the immune system. This study aimed to evaluate its prognostic value and relationship to immune infiltration in lung adenocarcinoma (LUAD). METHODS: In the TCGA and GEO datasets, the information on clinic and transcriptome analysis of SPP1 in non-small-cell lung cancer (NSCLC) was examined accordingly. The association of SPP1 expression with overall survival and clinicopathologic characteristics was investigated by univariate and multivariate analysis. CancerSEA database was utilized to investigate the role of SPP1 at the cellular level by single-cell analysis. Additionally, the CIBERSORT algorithm was utilized to assess the correlation among the immune cells that infiltrated. RESULTS: NSCLC tissues exhibited a notable rise in SPP1 expression compared with that of normal tissues. Furthermore, the overexpression of SPP1 was substantially associated with clinicopathological features and unfavorable survival outcomes in individuals with LUAD, whereas no such correlation was observed in lung squamous cell carcinoma. Immune cells that infiltrate tumors and their corresponding genes were associated with SPP1 expression levels in LUAD. CONCLUSIONS: SPP1 is a reliable indicator for assessing LUAD immune infiltration status and prognosis. With this approach, SPP1 can help earlier LUAD diagnosis and act as a possible immunotherapy target.


Assuntos
Adenocarcinoma de Pulmão , Carcinoma Pulmonar de Células não Pequenas , Neoplasias Pulmonares , Humanos , Osteopontina/genética , Prognóstico , Neoplasias Pulmonares/genética , Adenocarcinoma de Pulmão/genética
15.
Food Res Int ; 186: 114313, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38729689

RESUMO

Exploring the contribution of common microorganisms to spoilage is of great significance in inhibiting spoilage in lamb. This work investigated the extent of protein degradation and profile changes of free amino acids (FAAs), free fatty acids (FFAs) and volatile organic compounds (VOCs) in lamb caused by single- and co-culture of the common aerobic spoilage bacteria, P. paralactis, Ac. MN21 and S. maltophilia. Meanwhile, some key VOCs produced by the three bacteria during lamb spoilage were also screened by orthogonal partial least square discriminant analysis and difference value in VOCs content between inoculated groups and sterile group. Lamb inoculated with P. paralactis had the higher total viable counts, pH, total volatile base nitrogen and TCA-soluble peptides than those with the other two bacteria. Some FAAs and FFAs could be uniquely degraded by P. paralactis but not Ac. MN21 and S. maltophilia, such as Arg, Glu, C15:0, C18:0 and C18:1n9t. Co-culture of the three bacteria significantly promoted the overall spoilage, including bacterial growth, proteolysis and lipolysis. Key VOCs produced by P. paralactis were 2, 3-octanedione, those by Ac. MN21 were 1-octanol, octanal, hexanoic acid, 1-pentanol and hexanoic acid methyl ester, and that by S. maltophilia were hexanoic acid. The production of extensive key-VOCs was significantly and negatively correlated with C20:0, C23:0 and C18:ln9t degradation. This study can provide a basis for inhibiting common spoilage bacteria and promoting high-quality processing of fresh lamb.


Assuntos
Acinetobacter , Técnicas de Cocultura , Microbiologia de Alimentos , Pseudomonas , Carne Vermelha , Stenotrophomonas maltophilia , Compostos Orgânicos Voláteis , Animais , Compostos Orgânicos Voláteis/análise , Compostos Orgânicos Voláteis/metabolismo , Pseudomonas/metabolismo , Pseudomonas/crescimento & desenvolvimento , Acinetobacter/crescimento & desenvolvimento , Acinetobacter/metabolismo , Stenotrophomonas maltophilia/crescimento & desenvolvimento , Stenotrophomonas maltophilia/metabolismo , Carne Vermelha/microbiologia , Carne Vermelha/análise , Ovinos , Armazenamento de Alimentos , Temperatura Baixa , Ácidos Graxos não Esterificados/metabolismo , Ácidos Graxos não Esterificados/análise , Aminoácidos/metabolismo , Aminoácidos/análise , Carneiro Doméstico/microbiologia , Proteólise
16.
Meat Sci ; 213: 109502, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38552275

RESUMO

The connection and temperature control of cold chain links are key to ensuring meat quality. Considering the practical production of cold chain logistics in China, this study investigated the impact of various cold chain logistics modes (including warehousing, transportation, and sales conditions) at different temperature settings (7 °C, 4 °C, and - 1 °C), modeled in the laboratory, on the quality and bacterial community succession of pork. The pork quality was evaluated by pH, water holding capacity, total volatile basic nitrogen (TVB-N), total viable count (TVC) and myowater status. Among the different cold chain logistics modes, the LL1 (samples being warehoused and transported at 4 °C for 96 h and sold at -1 °C) and the SL1 (samples being warehoused and transported at 4 °C for 30 h and sold at -1 °C) modes were suitable for inter-provincial and intra-provincial transportation due to their long shelf life (> 14 days), respectively. The bacterial community succession of pork in different cold chain logistics modes was accessed by high-throughput sequencing. The results indicated that the cold chain logistics modes had affected the bacterial community, with Latilactobacillus being the dominant bacteria in the LL1 mode and SL1 mode during spoilage. The study revealed that the entire or partial process supercooling treatment (-1 °C) during the cold chain logistics process could effectively preserve the meat quality, supporting the high-quality development of the fresh meat cold chain logistics.


Assuntos
Microbiologia de Alimentos , Meios de Transporte , Animais , Suínos , China , Bactérias/classificação , Carne de Porco/microbiologia , Carne de Porco/análise , Armazenamento de Alimentos/métodos , Concentração de Íons de Hidrogênio , Refrigeração , Temperatura Baixa
17.
Food Chem ; 446: 138512, 2024 Jul 15.
Artigo em Inglês | MEDLINE | ID: mdl-38428085

RESUMO

Pickering emulsion loading essential oil has demonstrated a promising strategy as delivery system in food preservation, but localization in stability and antimicrobial activity limits application. In this study, Pickering emulsions co-loaded with tannic acid and cinnamon essential oil (ZTC) have been developed based on zein and tannic acid complexes (ZT) mediated interfacial engineering. Fourier transform infrared, fluorescence spectroscopy, and molecular docking results indicated tannic acid altered the structural of zein. Interfacial tension results indicated that tannic acid accelerated the adsorbed speed of zein particles by decreased interfacial tension (11.99-9.96 mN/m). ZT5 formed a viscoelastic and dense layer in oil-water interface than that for other ZTs, which improved stability and control release performance of ZTC. Furthermore, the ZTC showed an effective antimicrobial activity against spoilage organisms Pseudomonad paralactis MN10 and Lactobacillus sakei VMR17. These findings provide new insight for developing co-loaded multiple antimicrobial agents within Pickering emulsion as a delivery system.


Assuntos
Anti-Infecciosos , Nanopartículas , Óleos Voláteis , Polifenóis , Zeína , Óleos Voláteis/farmacologia , Emulsões/química , Zeína/química , Cinnamomum zeylanicum , Preparações de Ação Retardada , Simulação de Acoplamento Molecular , Anti-Infecciosos/farmacologia , Tamanho da Partícula , Nanopartículas/química
18.
Acta Crystallogr Sect E Struct Rep Online ; 69(Pt 1): m52, 2013 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-23476347

RESUMO

The title compound, {[Er2(C4H2O4)2(C2O4)(H2O)4]·4H2O} n , was synthesized by the reaction of erbium nitrate hexa-hydrate with fumaric acid and oxalic acid under hydro-thermal conditions. The Er(3+) cation (site symmetry ..2) is eight-coordinated by six O atoms from four fumarate anions (site symmetry ..2) and one bidentate oxalate anion (site symmetry 222), and by two water mol-ecules. The complex exhibits a three-dimensional structure consisting of oxalate pillared Er-fumarate layers with channels occupied by coordinating and lattice water mol-ecules. The three-dimensional structure features by Owater-H⋯O hydrogen bonds involving both the coordinating and lattice water mol-ecules.

19.
Behav Sci (Basel) ; 13(9)2023 Aug 30.
Artigo em Inglês | MEDLINE | ID: mdl-37754002

RESUMO

Harsh discipline during childhood (psychological aggression and corporal punishment) has been found to be an early risk factor for adolescent aggressive behavior. However, previous studies have mainly examined the relationship between harsh discipline as a whole and the level of adolescent aggressive behavior. This study investigates the effects of childhood psychological aggression and corporal punishment on the initial levels and rate of change in adolescent aggressive behavior, as well as the mediating role of self-compassion in this relationship. Using cluster sampling, a three-wave follow-up assessment was conducted on 1214 high-school students (60.7% boys; mean age at Wave 1 = 15.46 ± 0.71). The results showed that childhood psychological aggression and corporal punishment had a positive predictive effect on the development level of adolescent aggressive behavior. However, only childhood psychological aggression significantly directly attenuated the decline rate of adolescent aggressive behavior. In addition, both childhood psychological aggression and corporal punishment indirectly affected the initial levels and growth rate of adolescent aggressive behavior through self-compassion. These findings could provide potential targets for prevention and intervention programs aimed at improving aggressive behavior in Chinese adolescents.

20.
J Tradit Complement Med ; 13(5): 417-429, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37693094

RESUMO

Background: The Ze-Qi decoction (ZQD) is a traditional Chinese herbal formula commonly applied to treat lung cancer in China. This study aimed to assess the effective ingredients and molecular mechanisms of ZQD in treating non-small cell lung cancer (NSCLC) based on network pharmacology combined with experimental validation. Methods: Network pharmacology, bioinformatics, and molecular docking analyses were conducted to explore the mechanism of ZQD for treating NSCLC, which was further confirmed by animal experiments. Results: In total, 117 bioactive ingredients and 499 target proteins of ZQD were identified. Network pharmacology revealed 7 core active ingredients and 74 core target proteins. Kyoto Encyclopedia of Genes and Genomes enrichment analyses indicated that the PI3K/Akt and p53 signaling pathways may be crucial in NSCLC treatment. Molecular docking analysis revealed that the seven crucial bioactive ingredients complexed with PI3K, Akt, and p53. The animal experiment results validated that ZQD treatment promoted cell apoptosis and cell cycle arrest, thereby inhibiting NSCLC growth and metastasis. Furthermore, ZQD treatment caused a significant increase in p53 and Bax, while leading to a distinct reduction in p-PI3K (Tyr317), p-Akt (Ser473), VEGFA, CD31, MMP2, MMP9, Bcl2, and CDK2. Conclusions: ZQD inhibited the growth and metastasis of NSCLC subcutaneous tumors in C57BL/6J mice via the PI3K/Akt/p53 signaling pathway.

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