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2.
Mikrochim Acta ; 191(6): 319, 2024 05 10.
Artigo em Inglês | MEDLINE | ID: mdl-38727763

RESUMO

The high-residual and bioaccumulation property of organophosphorus pesticides (OPs) creates enormous risks towards the ecological environment and human health, promoting the research for smart adsorbents and detection methods. Herein, 2D hemin-bridged MOF nanozyme (2D-ZHM) was fabricated and applied to the efficient removal and ultrasensitive dual-mode aptasensing of OPs. On the one hand, the prepared 2D-ZHM contained Zr-OH groups with high affinity for phosphate groups, endowing it with selective recognition and high adsorption capacity for OPs (285.7 mg g-1 for glyphosate). On the other hand, the enhanced peroxidase-mimicking biocatalytic property of 2D-ZHM allowed rapid H2O2-directed transformation of 3,3',5,5'-tetramethylbenzidine to oxidic product, producing detectable colorimetric or photothermal signals. Using aptamers of specific recognition capacity, the rapid quantification of two typical OPs, glyphosate and omethoate, was realized with remarkable sensitivity and selectivity. The limit of detections (LODs) of glyphosate were 0.004 nM and 0.02 nM for colorimetric and photothermal methods, respectively, and the LODs of omethoate were 0.005 nM and 0.04 nM for colorimetric and photothermal methods, respectively. The constructed dual-mode aptasensing platform exhibited outstanding performance for monitoring OPs in water and fruit samples. This work provides a novel pathway to develop MOF-based artificial peroxidase and integrated platform for pollutant removal and multi-mode aptasensing.


Assuntos
Glicina , Glifosato , Hemina , Limite de Detecção , Estruturas Metalorgânicas , Praguicidas , Praguicidas/análise , Praguicidas/química , Estruturas Metalorgânicas/química , Hemina/química , Glicina/análogos & derivados , Glicina/química , Glicina/análise , Colorimetria/métodos , Benzidinas/química , Adsorção , Poluentes Químicos da Água/análise , Poluentes Químicos da Água/química , Peróxido de Hidrogênio/química , Dimetoato/análise , Dimetoato/química , Aptâmeros de Nucleotídeos/química , Compostos Organofosforados/análise , Compostos Organofosforados/química
3.
BMC Palliat Care ; 23(1): 53, 2024 Feb 23.
Artigo em Inglês | MEDLINE | ID: mdl-38395799

RESUMO

BACKGROUND: Although there is growing demand for hospice care in China due to its aging population and increasing cancer rates, the sector remains slow to expand. Oncology nurses are the primary providers of hospice care, but little is known about their behaviors towards hospice care and related factors. METHODS: This cross-sectional study conveniently sampled 933 oncology nurses from six grade A tertiary hospitals in Hubei Province between January to March 2022. The questionnaire was composed of seven parts: general information (including sociodemographic and work-related information), hospice care behaviors, hospice care knowledge, hospice care attitudes, hospice care self-efficacy, hospice care outcome expectancy, and hospice care environment. Data were analyzed using descriptive analysis, independent sample t-tests, one-way ANOVA, Pearson's correlation, multiple linear regression, random forest regression, and BP neural network model analysis. RESULTS: A total of 852 questionnaires were valid. The mean score of hospice care behaviors was 50.47 ± 10.56, with a mean item score of 3.61 ± 0.75. The three highest scoring behaviors were "pain assessment of patients (4.21 ± 0.91)", "satisfying the physical and mental needs of dying patients (4.04 ± 0.92)", and "creating good relationships between the medical staff and family members (4.02 ± 0.87)". The two lowest-scoring behaviors were "proactively recommending medical institutions for hospice care to terminally ill patients and their families (2.55 ± 1.10)" and "proactively talking to patients and families about death-related topics for patients who are critically ill and cannot be reversed (2.87 ± 1.03)." Multiple linear regression, random forest regression, and BP neural network models all showed that the frequency of sharing hospice care experiences with colleagues, hospice care attitudes, hospice care self-efficacy, and hospice care environments were positively associated with hospice care behaviors. CONCLUSIONS: The frequency of hospice care behaviors among Chinese oncology nurses is generally at a moderate to high level. The results provide a basis for promoting hospice care behaviors among oncology nurses in order to improve the quality of life for terminally ill cancer patients.


Assuntos
Cuidados Paliativos na Terminalidade da Vida , Neoplasias , Enfermeiras e Enfermeiros , Recursos Humanos de Enfermagem Hospitalar , Humanos , Idoso , Cuidados Paliativos na Terminalidade da Vida/psicologia , Estudos Transversais , Qualidade de Vida , Recursos Humanos de Enfermagem Hospitalar/psicologia , Inquéritos e Questionários , Teoria Psicológica , Atitude do Pessoal de Saúde
5.
Perioper Med (Lond) ; 12(1): 33, 2023 Jul 10.
Artigo em Inglês | MEDLINE | ID: mdl-37430359

RESUMO

BACKGROUND: To investigate the effect of intraoperative goal-directed fluid therapy (GDFT) combined with enhanced recovery after surgery (ERAS) program on postoperative complications in elderly patients undergoing thoracoscopic pulmonary resection. METHODS: Patients, more than 60 years old, undergoing thoracoscopic pulmonary resection for non-small cell lung cancer were randomly divided into GDFT group and restrictive fluid therapy (RFT) group. ERAS program was implemented in all patients. In GDFT group, the intraoperative fluid management was guided by stroke volume variation (SVV), cardiac index (CI), and mean arterial pressure (MAP) and maintained the SVV < 13%, CI > 2.5 L/min/m2, and MAP > 65 mmHg. In RFT group, fluid maintenance with 2 ml/kg/h of balanced crystalloid solution, norepinephrine was used to maintain MAP > 65 mmHg. The incidence of postoperative acute kidney injury (AKI) and pulmonary and cardiac complications was compared. RESULTS: Two-hundred seventy-six patients were enrolled and randomly divided into two groups (138 in each group). Compared to RFT group, the total intraoperative infusion volume, colloids infusion volume, and urine output were more; the dosage of norepinephrine was lower in GDFT group. Although there were no significant differences of postoperative AKI (GDFT vs RFT; 4.3% vs 8%; P = 0.317) and composite postoperative complications (GDFT vs RFT; 66 vs 70) between groups, but the postoperative increase degree of serum creatinine was lower in GDFT group than that in RFT group (GDFT vs RFT; 91.9 ± 25.2 µmol/L vs 97.1 ± 17.6 µmol/L; P = 0.048). CONCLUSIONS: Under ERAS program, there was no significant difference of AKI incidence between GDFT and RFT in elderly patients undergoing thoracoscopic pulmonary resection. But postoperative increase degree of serum creatinine was lower in GDFT group. TRIAL REGISTRATION: Registered at ClinicalTrials.gov, NCT04302467 on 26 February 2020.

6.
BMC Pediatr ; 23(1): 304, 2023 06 17.
Artigo em Inglês | MEDLINE | ID: mdl-37330491

RESUMO

BACKGROUND: Bronchopulmonary dysplasia (BPD) is the most common chronic pulmonary disease in premature infants. Blood proteins may be early predictors of the development of this disease. METHODS: In this study, protein expression profiles (blood samples during their first week of life) and clinical data of the GSE121097 was downloaded from the Gene Expression Omnibus. Weighted gene co-expression network analysis (WGCNA) and differential protein analysis were carried out for variable dimensionality reduction and feature selection. Least absolute shrinkage and selection operator (LASSO) were conducted for BPD prediction model development. The performance of the model was evaluated by the receiver operating characteristic (ROC) curve, calibration curve, and decision curve. RESULTS: The results showed that black module, magenta module and turquoise module, which included 270 proteins, were significantly correlated with the occurrence of BPD. 59 proteins overlapped between differential analysis results and above three modules. These proteins were significantly enriched in 253 GO terms and 11 KEGG signaling pathways. Then, 59 proteins were reduced to 8 proteins by LASSO analysis in the training cohort. The proteins model showed good BPD predictive performance, with an AUC of 1.00 (95% CI 0.99-1.00) and 0.96 (95% CI 0.90-1.00) in training cohort and test cohort, respectively. CONCLUSION: Our study established a reliable blood-protein based model for early prediction of BPD in premature infants. This may help elucidate pathways to target in lessening the burden or severity of BPD.


Assuntos
Displasia Broncopulmonar , Recém-Nascido , Lactente , Humanos , Displasia Broncopulmonar/diagnóstico , Displasia Broncopulmonar/genética , Idade Gestacional , Recém-Nascido Prematuro , Proteínas Sanguíneas/genética , Curva ROC
7.
Pathol Oncol Res ; 28: 1610712, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36567977

RESUMO

Background: Gastric cancer (GC) is a worldwide popular malignant tumor. However, the survival rate of advanced GC remains low. Pyroptosis and long non-coding RNAs (lncRNAs) are important in cancer progression. Thus, we aimed to find out a pyroptosis-related lncRNAs (PRLs) signature and use it to build a practical risk model with the purpose to predict the prognosis of patients with GC. Methods: Univariate Cox regression analysis was used to identify PRLs linked to GC patient's prognosis. Subsequently, to construct a PRLs signature, the least absolute shrinkage and selection operator regression, and multivariate Cox regression analysis were used. Kaplan-Meier analysis, principal component analysis, and receiver operating characteristic curve analysis were performed to assess our novel lncRNA signature. The correlation between risk signature and clinicopathological features was also examined. Finally, the relationship of pyroptosis and immune cells were evaluated through the CIBERSORT tool and single-sample lncRNA set enrichment analysis (ssGSEA). Results: A PRLs signature comprising eight lncRNAs was discerned as a self-determining predictor of prognosis. GC patients were sub-divided into high-risk and low-risk groups via this risk-model. Stratified analysis of different clinical factors also displayed that the PRLs signature was a good prognosis factor. According to the risk score and clinical characteristics, a nomogram was established. Moreover, the difference between the groups is significance in immune cells and immune pathways. Conclusion: This study established an effective prognostic signature consist of eight PRLs in GC, and constructed an efficient nomogram model. Further, the PRLs correlated with immune cells and immune pathways.


Assuntos
RNA Longo não Codificante , Neoplasias Gástricas , Humanos , Piroptose/genética , Neoplasias Gástricas/genética , RNA Longo não Codificante/genética , Prognóstico , Nomogramas
8.
Front Oncol ; 12: 894786, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35646694

RESUMO

Hashimoto's thyroiditis (TH) is a risk factor for the occurrence of papillary thyroid carcinoma (PTC), which is considered to be the most common type of thyroid cancer. In recent years, the prevalence of PTC with TH has been increasing, but little is known about the genetic alteration in PTC with TH. This study analyzed the mutation spectrum and mutation signature of somatic single nucleotide variants (SNV) for 10 non-tumor and tumor pair tissues of PTC with TH using whole-exome sequencing. The ANK3 protein expression was evaluated by immunohistochemistry in PTC with TH and PTC samples. Moreover, the functional role of ANK3 in PTC cells was determined by CCK-8 proliferation assay, colony formation assays, cell cycle analysis, cell invasion and migration and in vivo study through overexpression assay. Our results showed three distinct mutational signatures and the C>T/G>A substitution was the most common type of SNV. Gene-set enrichment analysis showed that most of the significantly mutated genes were enriched in the regulation of actin cytoskeleton signaling. Moreover, NCOR2, BPTF, ANK3, and PCSK5 were identified as the significantly mutated genes in PTC with TH, most of which have not been previously characterized. Unexpectedly, it was found that ANK3 was overexpressed in cytoplasm close to the membrane of PTC cells with TH and in almost all PTC cases, suggesting its role as a diagnostic marker of PTC. Ectopic expression of ANK3 suppressed invasion and migration, increased apoptosis of B-CPAP and TPC-1 cells. Moreover, our findings revealed that enhanced ANK3 expression inhibits growth of PTC cells both in vitro and in vivo. Ectopic expression of ANK3 significantly enhanced E-cadherin protein expression and inhibited PTC progression, at least in part, by suppression of epithelial-mesenchymal transition (EMT). Our study shows that ANK3 exerts an anti-oncogenic role in the development of PTC and might be an indolent maintainer of PTC.

9.
Oxid Med Cell Longev ; 2022: 8168988, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35132353

RESUMO

Hepatocyte nuclear factor 4 alpha (HNF4A) is a transcriptional factor which plays an important role in the development of the liver, kidney, and intestines. Nevertheless, its role in cervical cancer and the underlying mechanism remain unknown. In this study, both immunohistochemistry and western blotting revealed that the expression of HNF4A was downregulated in cervical cancer. Xenograft assays suggested that HN4A could inhibit tumorigenic potential of cervical cancer in vivo. Functional studies illustrated that HNF4A also inhibited the proliferation and viability of cervical cancer cells in vitro. In addition, FACS analysis implied that HNF4A could induce cell cycle arrest from the G0/G1 phase to S phase. Further studies suggested that HNF4A downregulated the activity of the Wnt/ß-catenin pathway. Altogether, our data demonstrated that HNF4A inhibited tumor formation and proliferation of cervical cancer cells through suppressing the activity of the Wnt/ß-catenin pathway.


Assuntos
Carcinogênese/metabolismo , Proliferação de Células/genética , Fator 4 Nuclear de Hepatócito/metabolismo , Neoplasias do Colo do Útero/metabolismo , Proteínas Wnt/metabolismo , Via de Sinalização Wnt/genética , beta Catenina/metabolismo , Animais , Carcinogênese/genética , Estudos de Casos e Controles , Pontos de Checagem do Ciclo Celular/genética , Sobrevivência Celular/genética , Regulação para Baixo/genética , Feminino , Regulação Neoplásica da Expressão Gênica , Células HeLa , Fator 4 Nuclear de Hepatócito/genética , Humanos , Camundongos , Camundongos Nus , Transfecção , Carga Tumoral/genética , Regulação para Cima/genética , Neoplasias do Colo do Útero/genética , Neoplasias do Colo do Útero/patologia , Ensaios Antitumorais Modelo de Xenoenxerto
10.
Leuk Lymphoma ; 63(5): 1152-1159, 2022 05.
Artigo em Inglês | MEDLINE | ID: mdl-34957894

RESUMO

Angioimmunoblastic T-cell lymphoma (AITL) is a unique sub-type of peripheral T-cell lymphoma (PTCL). We aimed to evaluate treatment programs and prognostic factors of 121 newly diagnosed patients with AITL in China from January 2001 to December 2018. The median age was 58 years with male predominance. Bone marrow involvement appeared in only 8.3% of patients, which was different from the previously published literature. The 5-year progression-free survival (PFS) and 5-year overall survival (OS) were 29.7% and 44.0%, respectively. Univariate and multivariate analyses showed that involvement of >5 nodal areas, age and Beta-2 microglubulin were highly predictive of OS but only the involvement of fewer than five nodal areas was significant for PFS. We identified a novel prognostic model including the three factors that may be applied in clinical practice and offer an alternative to IPI and PIT.


Assuntos
Linfadenopatia Imunoblástica , Linfoma de Células T Periférico , Feminino , Humanos , Linfadenopatia Imunoblástica/diagnóstico , Linfadenopatia Imunoblástica/epidemiologia , Linfadenopatia Imunoblástica/terapia , Linfoma de Células T Periférico/diagnóstico , Linfoma de Células T Periférico/epidemiologia , Linfoma de Células T Periférico/terapia , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Prognóstico , Estudos Retrospectivos
11.
Int J Biol Sci ; 17(14): 3875-3888, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34671205

RESUMO

Cervical cancer is a common gynecologic cancer and a frequent cause of death. In this study, we investigated the role of MELK (maternal embryonic leucine zipper kinase) in cervical cancer. We found that HPV 18 E6/E7 promoted MELK expression by activating E2F1. MELK knockdown blocked cancer cells growth. Furthermore, we used MELK-8A to inhibit the kinase activity of MELK and caused the G2/M phase arrest of cancer cells. Under the treatment of inhibitors, Hela cells formed multipolar spindles and eventually underwent apoptosis. We also found that MELK is involved in protein translation and folding during cell division through the MELK interactome and the temporal proteomic analysis under inhibition with MELK-8A. Altogether, these results suggest that MELK may play a vital role in cancer cell proliferation and indicate a potential therapeutic target for cervical cancer.


Assuntos
Proliferação de Células , Fator de Transcrição E2F1/metabolismo , Proteínas Serina-Treonina Quinases/metabolismo , Regulação para Cima , Neoplasias do Colo do Útero/patologia , Animais , Apoptose , Divisão Celular , Linhagem Celular Tumoral , Feminino , Fase G2 , Humanos , Espectrometria de Massas , Camundongos , Camundongos Nus , Mitose , Ligação Proteica , Neoplasias do Colo do Útero/metabolismo , Ensaios Antitumorais Modelo de Xenoenxerto
12.
Oncogene ; 40(42): 6103-6114, 2021 10.
Artigo em Inglês | MEDLINE | ID: mdl-34489551

RESUMO

The leucine-rich repeat-containing G-protein-coupled receptor 6 (LGR6) is considered to be a stem cell marker in many normal tissues and promotes tissue development, regeneration, and repair. LGR6 is also related to the initiation and progression of some malignant tumors. However, the role of LGR6 in cervical cancer has not been reported. Here, immunohistochemistry and western blotting showed that LGR6 was significantly upregulated in cervical cancer, compared with the normal cervix. By analyzing The Cancer Genome Atlas database, LGR6 was found to be correlated with a poor prognosis of cervical cancer. Then, a small population of LGR6high cells isolated by using the fluorescence-activated cell sorting exhibited enhanced properties of cancer stem cells including self-renewal, differentiation, and tumorigenicity. Moreover, RNA sequencing revealed that LGR6 was correlated with the Wnt signaling pathway and TOP/FOP, reverse transcription-PCR, and western blotting further proved that LGR6 could activate the Wnt/ß-catenin signaling pathway. Interestingly, LGR6 upregulated the expression of TCF7L2 by activating the Wnt/ß-catenin pathway. Then, TCF7L2 combining with ß-catenin in the nucleus enhanced LGR6 transcription by binding the promoter of LGR6, which further activated the Wnt signaling to form a positive feedback loop. Thus, our study demonstrated that LGR6 activated a novel ß-catenin/TCF7L2/LGR6-positive feedback loop in LGR6high cervical cancer stem cells (CSCs), which provided a new therapeutic strategy for targeting cervical CSCs to improve the prognosis of cervical cancer patients.


Assuntos
Células-Tronco Neoplásicas/metabolismo , Receptores Acoplados a Proteínas G/genética , Receptores Acoplados a Proteínas G/metabolismo , Proteína 2 Semelhante ao Fator 7 de Transcrição/metabolismo , Neoplasias do Colo do Útero/patologia , beta Catenina/metabolismo , Animais , Linhagem Celular Tumoral , Retroalimentação Fisiológica , Feminino , Perfilação da Expressão Gênica , Regulação Neoplásica da Expressão Gênica , Células HeLa , Humanos , Camundongos , Transplante de Neoplasias , Células-Tronco Neoplásicas/patologia , Prognóstico , Regiões Promotoras Genéticas , Análise de Sequência de RNA , Regulação para Cima , Neoplasias do Colo do Útero/genética , Neoplasias do Colo do Útero/metabolismo , Via de Sinalização Wnt
13.
Biomed Res Int ; 2021: 3834040, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33628778

RESUMO

To analyze the outcomes and adverse events of patients with esophageal squamous cell carcinoma (ESCC) treated with definitive chemoradiation with modified radiotherapy volume and increased radiation dose. This was a retrospective analysis of patients with ESCC treated with definitive chemoradiotherapy at the Sun Yat-sen University Cancer Center (02/2015 to 02/2017). The dose to the planning gross tumor volume (PGTV) and planning clinical tumor volume (PTV1) was 66-68 Gy (2.0-2.2 Gy/fraction). The dose to the planning regional lymph node drainage area volume (PTV2) was 46 Gy (2.0 Gy/fraction). Treatment response, adverse events, progression-free survival (PFS), overall survival (OS), and locoregional failure-free survival (LRFFS) were analyzed. Twenty-six patients were included. The median follow-up was 31 (range, 4.3-51.3) months. Sixteen (61.5%) patients had a complete response, and four (15.4%) achieved a partial response. The objective response rate was 76.9%, and the disease control rate was 80.8%. The median PFS and OS were not achieved. The 4-year PFS was 63.9%, and the 4-year OS was 71.0%. Grade 1-2 and 3-4 radiation-related esophagitis was observed in 15 (57.7%) and one (4.5%) patients, respectively. Grade 1-2 and 3-4 radiation-related pneumonitis was observed in 12 (46.2%) and one (4.5%) patients, respectively. No patients developed radiation-related heart or skin damage. The modified target volume definition and increased dose of definitive radiotherapy combined with chemotherapy in patients with ESCC had low toxicity and might improve survival, but additional trials are necessary to prove the superiority of this strategy.


Assuntos
Quimiorradioterapia , Neoplasias Esofágicas , Carcinoma de Células Escamosas do Esôfago , Adulto , Idoso , Idoso de 80 Anos ou mais , Quimiorradioterapia/efeitos adversos , Quimiorradioterapia/estatística & dados numéricos , Neoplasias Esofágicas/tratamento farmacológico , Neoplasias Esofágicas/epidemiologia , Neoplasias Esofágicas/mortalidade , Neoplasias Esofágicas/radioterapia , Carcinoma de Células Escamosas do Esôfago/tratamento farmacológico , Carcinoma de Células Escamosas do Esôfago/epidemiologia , Carcinoma de Células Escamosas do Esôfago/mortalidade , Carcinoma de Células Escamosas do Esôfago/radioterapia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Pneumonite por Radiação , Dosagem Radioterapêutica , Estudos Retrospectivos , Análise de Sobrevida
14.
Zhongguo Shi Yan Xue Ye Xue Za Zhi ; 29(1): 167-171, 2021 Feb.
Artigo em Chinês | MEDLINE | ID: mdl-33554814

RESUMO

OBJECTIVE: To explore the expression of CD40/CD40L in multiple myeloma(MM) patients and its influence on prognosis. METHODS: Thirty patients with MM treated in Cangzhou People's Hospital from May 2016 to June 2017 were selected and divided into MM group, then 30 healthy people with a physical examination in our hospital at the same time were selected as the normal group. The serum CD40/CD40L levels of the patients in the two groups was detected by flow cytometry, and its correlation with the lymphocyte population, pathological grade and prognostic significance of MM patients was anaysis. RESULTS: The expression of CD40 in serum of the patients in MM group was significantly higher than those in normal group (P<0.05). The expression of CD40L in serum of the patients in MM group showed no significant difference as compared with those in normal group (P>0.05). The levels of CD40 and CD40L in the patients before and after chemotherapy showed no difference(P>0.05). The levels of Ts and NK cells in the patients of MM group were lower than those in normal group (P<0.05). The proportion of total B lymphocytes, Th and Th/Ts cells between the two groups showed no significant difference (P>0.05). The CD40 level was correlated with the serum total B lymphocyte level of the patients in MM group (r=0.877, P=0.005). There was a correlation with CD40L and Th cells in the serum of MM patients (r=-0.783, P=0.035). The expression of serum CD40 in the patients at phase III-IV was higher than those of the patients at phase I-II, the levels of serum CD40L in MM patients at different periods showed no significant difference(P>0.05). The survival rate of MM patients with high CD40 expression was lower than that of MM patients with low CD40 expression (χ2=1.639, P=0.201). The high level CD40 was the main factor affecting the prognosis of MM patients (95%CI: 1.156-4.125). CONCLUSION: The increasing of CD40 level in MM patients is related to the pathological grade of the patients. Chemotherapy can reduce the level of CD40. The increasing of CD40 is an important factor for the poor prognosis of MM patients. CD40L level is not meaningful for MM treatment and prognosis.


Assuntos
Antígenos CD40 , Ligante de CD40 , Linfócitos B , Humanos , Subpopulações de Linfócitos , Prognóstico
15.
Front Immunol ; 12: 739039, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-35185859

RESUMO

Objective: Squamous cell carcinomas (SCCs) with shared etiology, histological characteristics, and certain risk factors represent the most common solid cancers. This study reports the crosstalk between autophagy and ferroptosis at the molecular level in SCCs, and their roles on the immunological tumor microenvironment (TME) of SCCs. Methods: In this study, the connections between autophagy and ferroptosis were characterized in SCCs by analyzing the associations between autophagy- and ferroptosis-related genes in mRNA expression and prognosis, protein-protein interactions and shared signaling pathways. Autophagy potential index (API) and ferroptosis potential index (FPI) of each tumor were quantified for reflecting autophagy and ferroptosis levels via principal-component analysis algorithm. Their synergistical roles on TME, immunity, drug resistance and survival were systematically analyzed in SCCs. Results: There were close connections between autophagy and ferroptosis at the mRNA and protein levels and prognosis. Both shared cancer-related pathways. The API and FPI were separately developed based on prognostic autophagy- and ferroptosis-related genes. A high correlation between API and FPI was found in SCCs. Their interplay was distinctly associated with favorable prognosis, enhanced sensitivity to chemotherapy drugs (Sunitinib, Gefitinib, Vinblastine and Vorinostat), an inflamed TME and higher likelihood of response to immunotherapy in SCCs. Conclusion: This study is the first to provide a comprehensive analysis of the interplay between autophagy and ferroptosis and their synergistical roles on manipulating the immunological TME in SCCs. These findings indicated that the induction of autophagy and ferroptosis combined with immunotherapy might produce synergistically enhanced anti-SCCs activity.


Assuntos
Carcinoma de Células Escamosas , Ferroptose , Autofagia , Humanos , RNA Mensageiro , Microambiente Tumoral
16.
Front Oncol ; 10: 581208, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33324557

RESUMO

Hexokinase 2 (HK2) is a member of the hexokinases (HK) that has been reported to be a key regulator during glucose metabolism linked to malignant growth in many types of cancers. In this study, stimulation of HK2 expression was observed in squamous cervical cancer (SCC) tissues, and HK2 expression promoted the proliferation of cervical cancer cells in vitro and tumor formation in vivo by accelerating cell cycle progression, upregulating cyclin A1, and downregulating p27 expression. Moreover, transcriptome sequencing analysis revealed that MAPK3 (ERK1) was upregulated in HK2-overexpressing HeLa cells. Further experiments found that the protein levels of p-Raf, p-MEK1/2, ERK1/2, and p-ERK1/2 were increased in HK2 over-expressing SiHa and HeLa cells. When ERK1/2 and p-ERK1/2 expression was blocked by an inhibitor (FR180204), reduced cyclin A1 expression was observed in HK2 over-expressing cells, with induced p27 expression and inhibited cell growth. Therefore, our data demonstrated that HK2 promoted the proliferation of cervical cancer cells by upregulating cyclin A1 and down-regulating p27 expression through the Raf/MEK/ERK signaling pathway.

17.
J Cell Mol Med ; 24(21): 12464-12475, 2020 11.
Artigo em Inglês | MEDLINE | ID: mdl-32954681

RESUMO

NF-YA is considered as a crucial regulator for the maintenance of cancer stem cell (CSC) and involved in various types of malignant tumours. However, the exact function and molecular mechanisms of NF-YA in the progression of cervical cancer remains poorly understood. Here, the expression of NF-YA detected by immunohistochemistry was gradually increased from normal cervical tissues, to the high-grade squamous intraepithelial lesions, and then to cervical cancer tissues. NF-YA promoted the cell proliferation and tumorigenic properties of cervical cancer cells as well as tumorsphere formation and chemoresistance in vitro. The luciferase reporter assay combined with mutagenesis analyses and Western blotting showed that NF-YA trans-activated the expression of SOX2 in cervical cancer. Furthermore, quantitative chromatin immunoprecipitation (qChIP) and electrophoretic mobility shift assay (EMSA) confirmed that NF-YA protein directly bound to the CCAAT box region located upstream of the SOX2 promoter. Together, our data demonstrated that NF-YA was highly expressed in cervical cancer and promoted the cell proliferation, tumorigenicity and CSC characteristic by trans-activating the expression of SOX2.


Assuntos
Fator de Ligação a CCAAT/metabolismo , Regulação Neoplásica da Expressão Gênica , Fatores de Transcrição SOXB1/metabolismo , Neoplasias do Colo do Útero/metabolismo , Animais , Carcinoma de Células Escamosas/metabolismo , Linhagem Celular Tumoral , Proliferação de Células , Separação Celular , Sobrevivência Celular , Feminino , Humanos , Camundongos , Camundongos Nus , Células-Tronco Neoplásicas/metabolismo , Ativação Transcricional , Displasia do Colo do Útero/metabolismo
18.
Eur J Cancer Care (Engl) ; 29(6): e13323, 2020 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-32888353

RESUMO

OBJECTIVE: To establish and validate the Colostomy Disgust Scale (CDS) for assessing disgust in colostomy patients. DESIGN: Triphasic, cross-sectional psychometric study. SETTING: A total of 423 patients with colostomy (222 first samples and 201 s samples) were recruited from a tertiary hospital between January 2015 and April 2016. METHODS: Three phases were undertaken: (a) item generation, (b) item selection and (c) evaluation and validation. The evaluation and validation of the CDS were performed through feasibility and initial item analysis, exploratory factor analysis, confirmatory factor analysis and internal consistency. RESULTS: Following item generation and item selection, a 22-item CDS was generated. Principal axis factoring indicated a two-factor solution for the proposed CDS model, which was also verified by confirmatory factor analysis. Moreover, the proposed CDS had a high internal consistency. CONCLUSION: The CDS is a self-report instrument with initial evidence for its validity and reliability. It is a promising tool to identify the triggers of disgust in colostomy contexts, which can be of great importance for promoting the mental health of colostomy patients.


Assuntos
Asco , Colostomia , Estudos Transversais , Humanos , Psicometria , Reprodutibilidade dos Testes , Inquéritos e Questionários
19.
Asian Nurs Res (Korean Soc Nurs Sci) ; 14(4): 257-266, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-32858214

RESUMO

PURPOSE: To investigate the effectiveness of a structured death education program for older adults with chronic illness and their family caregivers. METHODS: This study adopted two-group, nonrandomized quasi-experimental design. Patient-caregiver dyads in the intervention group (N = 40 dyads) engaged in the death education program at the bedside once a week for 5 weeks, and were compared with participants (N = 40 dyads) in the control group who received usual health education. The program consisted of five sessions based on the Interaction Model of Client Health Behavior. Death attitude, death competence, well-being, family function, and satisfaction were measured at baseline (T0), immediately after the intervention (T1), and 1 month later (T2). Data collection was conducted from July 30, 2019, to December 30, 2019. RESULTS: The intention-to-treat analysis The intention-to-treat analysis of between groups at 1-month follow-up revealed that the intervention group had greater decreases in the fear of death (p=.002, 95% CI -2.53, -0.47; p<.001, 95% CI -3.61, -1.65) and death avoidance (p<.001, 95% CI -3.46, -1.84; p<.001, 95% CI -3.89, -2.43), had greater increases in the neutral acceptance (p=.032, 95% CI 0.05, 1.38; p<.001, 95% CI 0.99, 2.56) and death competence (p<.001, 95% CI 4.10, 8.01; p<.001, 95% CI 7.80, 12.11) in patients and caregivers, respectively. There were significant intergroup differences over time for patient well-being of (p<.001, 95% CI 3.06, 9.74) and satisfaction of (p<.001, 95% CI 2.01, 4.59). Results were consistent with the results from the sensitivity analysis. CONCLUSION: This study demonstrated the feasibility and benefits of death education in hospitals and provided an implementation plan for nursing professionals. Nurses should consider providing death education for older adults with chronic diseases and their families to promote the development of palliative care and the quality of end-of-life.


Assuntos
Cuidadores/educação , Cuidadores/psicologia , Doença Crônica/psicologia , Família/psicologia , Cuidados Paliativos/psicologia , Educação de Pacientes como Assunto , Qualidade de Vida/psicologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Adulto Jovem
20.
J Adv Nurs ; 76(10): 2547-2558, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-32700799

RESUMO

AIM: This paper is a report of a study exploring the relationship between stoma acceptance and stoma care self-efficacy in patients with colostomy and whether self-disgust and stigma play mediating roles in this relationship. DESIGN: A cross-sectional survey design. METHOD: In all, 476 participants were recruited from a tertiary hospital and completed structured, anonymous, self-report measures of stoma acceptance, self-disgust, stigma, and stoma care self-efficacy between January 2016-March 2017. RESULTS: Stoma acceptance was significantly negatively associated with personal disgust (r = -.640, p<.001), behavioural disgust (r = -.384, p<.001), and stigma (r = -.309, p<.001) and significantly positively associated with stoma care self-efficacy (r = .689, p<.001). Furthermore, regression-based mediation modelling showed that personal disgust and stigma had significant mediating effects on stoma acceptance and stoma care self-efficacy. CONCLUSION: We demonstrated, for the first time, that emotional responses (self-disgust and stigma) play important roles in the association between stoma acceptance and stoma care self-efficacy. Addressing concerns about emotional disorder should become part of the routine care for patients with stoma. IMPACT: Patients with colostomy must cope with many challenges and undergo profound changes in daily life. Acceptance of the existence of the stoma and effective management of the stoma can aid patients in the return to a full and active life. Illness acceptance and psychological states have been widely reported to be correlates of the ability to successfully reconstitute a meaning of life, but these have not been specifically explored in patients with colostomy. This study examined the effect of stoma acceptance on stoma care self-efficacy with the mediation role of self-disgust and stigma. Evidence of the relationship between illness acceptance and self-efficacy could offer practitioners to consider emotional factors like self-disgust and stigma when aiming to improve stoma care and management.


Assuntos
Asco , Estomas Cirúrgicos , Estudos Transversais , Humanos , Qualidade de Vida , Autoeficácia , Inquéritos e Questionários
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