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1.
Oncologist ; 29(4): e498-e506, 2024 Apr 04.
Artigo em Inglês | MEDLINE | ID: mdl-38227604

RESUMO

OBJECTIVE: Reports of tuberculosis (TB) during anticancer treatment with immune checkpoint inhibitors (ICIs) are increasing. However, it is not clear whether the use of ICIs is a significant risk factor for TB, including reactivation or latent TB infection (LTBI). METHODS: To determine the risk of TB reactivation in patients with lung cancer who use ICIs or tyrosine kinase inhibitors (TKIs), we conducted a retrospective study using a hospital-based cancer registry. In addition, we monitored patients with cancer using ICI or TKI in a multicenter prospective study to check the incidence of LTBI. RESULTS: In the retrospective study, several demographic factors were imbalanced between the ICI and TKI groups: the ICI group was younger, had more males, exhibited more squamous cell carcinoma in histology rather than adenocarcinoma, had fewer EGFR mutations, and received more chemotherapy. Propensity score matching was used to control for confounding factors, and we found that the incidence of TB was higher among patients with lung cancer who received ICIs than among those who received TKIs (2298 vs 412 per 100 000 person-years, P = .0165). Through multivariable analysis, group (ICI vs TKI) was the independent risk factor for TB development (adjusted hazard ratio (aHR): 6.29, 95% CI, 1.23-32.09, P = .0269). In the prospective cohort, which included 72 patients receiving ICIs and 50 receiving TKIs, we found that the incidence of positive seroconversion of LTBI by interferon gamma release assay (IGRA) was significantly higher in patients receiving ICIs (18% vs 0%, aHR: 9.88, P = 0.035) under multivariable Cox regression. CONCLUSION: The use of ICIs may be linked to a higher likelihood of TB reactivation and LTBI than individuals solely receiving TKIs as anticancer therapy. Consequently, the implementation of a screening program for TB reactivation and LTBI among patients undergoing ICI treatment could prove advantageous by enabling early detection and prompt treatment of the infection.


Assuntos
Neoplasias Pulmonares , Tuberculose , Humanos , Masculino , Inibidores de Checkpoint Imunológico/efeitos adversos , Neoplasias Pulmonares/tratamento farmacológico , Estudos Prospectivos , Estudos Retrospectivos , Tuberculose/induzido quimicamente , Tuberculose/tratamento farmacológico , Tuberculose/epidemiologia , Feminino
2.
World J Urol ; 42(1): 321, 2024 May 14.
Artigo em Inglês | MEDLINE | ID: mdl-38744781

RESUMO

PURPOSE: Utilize magnetic resonance defecography (MRD) to analyze the primary pelvic floor dysfunctions in patients with stress urinary incontinence (SUI) associated with pelvic organ prolapse (POP), and in SUI patients with asymptomatic POP. METHOD: We performed MRD in both SUI and POP subjects. As a primary analysis, the functional MR parameters were compared between the isolated POP and POP combined SUI groups. As a secondary analysis, the functional MR data were compared between the POP combined SUI and the SUI with asymptomatic POP (isolated SUI) groups. RESULTS: MRD noted the main characteristics of SUI combined moderate or severe POP, including the shorter closed urethra length (1.87 cm vs. 2.50 cm, p < 0.001), more prevalent urethral hypermobility (112.31° vs. 85.67°, p = 0.003), bladder neck funneling (48.28% vs. 20.51%, p = 0.020), lower position of vesicourethral junction (2.11 cm vs. 1.67 cm, p = 0.030), and more severe prolapse of the posterior bladder wall (6.26 cm vs. 4.35 cm, p = 0.008). The isolated SUI patients showed the shortest length of the closed urethra (1.56 cm vs. 1.87 cm, p = 0.029), a larger vesicourethral angle (153.80° vs. 107.58°, p < 0.001), the more positive bladder funneling (84.85% vs. 48.28%, p = 0.002) and a special urethral opening sign (45.45% vs. 3.45%, p < 0.001). CONCLUSIONS: Patients with SUI accompanying POP primarily exhibit excessive urethral mobility and a shortened urethral closure. SUI patients with asymptomatic POP mainly show dysfunction of the urethra and bladder neck, characterized by the opening of the urethra and bladder neck and a shortened urethral closure.


Assuntos
Defecografia , Imageamento por Ressonância Magnética , Prolapso de Órgão Pélvico , Incontinência Urinária por Estresse , Humanos , Incontinência Urinária por Estresse/diagnóstico por imagem , Prolapso de Órgão Pélvico/diagnóstico por imagem , Prolapso de Órgão Pélvico/complicações , Feminino , Pessoa de Meia-Idade , Idoso , Adulto
3.
Nanotechnology ; 35(12)2024 Jan 04.
Artigo em Inglês | MEDLINE | ID: mdl-38086071

RESUMO

At low temperatures about 230 °C, bilayer InGaZnO/In2O3thin film transistors (TFTs) were prepared by a solution process with lightwave annealing. The InGaZnO/In2O3bilayer TFTs with SiO2as dielectric layer show high electrical performances, such as a mobility of 7.63 cm2V-1s-1, a threshold voltage (Vth) of 3.8 V, and an on/off ratio higher than 107, which are superior to single-layer InGaZnO TFTs or In2O3TFTs. Moreover, bilayer InGaZnO/In2O3TFTs demonstrated a great bias stability enhancement due to the introduction of top InGaZnO film act as a passivation layer, which could prevent the interaction of ambient air with the bottom In2O3layer. By using high dielectric constant AlOxfilm, the InGaZnO/In2O3TFTs exhibit an improved mobility of 47.7 cm2V-1s-1. The excellent electrical performance of the solution-based InGaZnO/In2O3TFTs shows great application potential for low-cost flexible printed electronics.

4.
BMC Infect Dis ; 24(1): 225, 2024 Feb 20.
Artigo em Inglês | MEDLINE | ID: mdl-38378498

RESUMO

BACKGROUND: Fusobacterium nucleatum (F. nucleatum) belongs to the genus Fusobacterium, which is a gram-negative obligate anaerobic bacterium. Bacteremia associated with F. nucleatum is a serious complication, which is not common in clinic, especially when it is combined with other intracranial pathogenic microorganism infection. We reported for the first time a case of F. nucleatum bacteremia combined with intracranial Porphyromonas gingivalis (P. gingivalis) and herpes simplex virus type 1(HSV-1) infection. CASE PRESENTATION: A 60-year-old woman was admitted to our hospital with a headache for a week that worsened for 2 days. Combined with history, physical signs and examination, it was characterized as ischemic cerebrovascular disease (ICVD). F. nucleatum was detected in blood by matrix-assisted laser desorption/ionization time-offight mass spectrometry (MALDI-TOF-MS). Meanwhile, P. gingivalis and HSV-1 in cerebrospinal fluid (CSF) were identified by metagenome next generation sequencing (mNGS). After a quick diagnosis and a combination of antibiotics and antiviral treatment, the patient recovered and was discharged. CONCLUSION: To our knowledge, this is the first report of intracranial P. gingivalis and HSV-1 infection combined with F. nucleatum bacteremia.


Assuntos
Bacteriemia , Infecções por Fusobacterium , Herpes Simples , Herpesvirus Humano 1 , Feminino , Humanos , Pessoa de Meia-Idade , Porphyromonas gingivalis , Fusobacterium nucleatum , Herpesvirus Humano 1/genética , Composição de Bases , Filogenia , RNA Ribossômico 16S , Análise de Sequência de DNA , Herpes Simples/complicações , Herpes Simples/diagnóstico , Herpes Simples/tratamento farmacológico , Bacteriemia/complicações , Bacteriemia/diagnóstico , Bacteriemia/tratamento farmacológico , Infecções por Fusobacterium/complicações , Infecções por Fusobacterium/diagnóstico , Infecções por Fusobacterium/tratamento farmacológico
5.
Carcinogenesis ; 44(6): 497-510, 2023 08 18.
Artigo em Inglês | MEDLINE | ID: mdl-37144780

RESUMO

Lung cancer is the leading cause of cancer-related deaths worldwide. Epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs) showed great therapeutic efficacy for non-small cell lung cancer (NSCLC) patients. However, acquired resistance severely limits the clinical application and efficacy of EGFR-TKIs. In the current study, we found that solamargine (SM), a natural alkaloid derived from the fruit of Lycium tomato lobelia, has been found to inhibit the progression of NSCLC and enhance the anticancer effect of EGFR-TKIs. In brief, SM significantly inhibited the cell viability of NSCLC cells and enhanced the anticancer effect of gefitinib (GFTN) and erlotinib (ERL). Mechanistically, SM decreased the expression of MALAT1 and induced miR-141-3p, whereas reduced SP1 protein levels. Interestingly, both MALAT1 and Sp1 have classical and conservative binding sites of miR-141-3p in their 3'-UTR regions. Silence of MALAT1 and overexpression of miR-141-3p both decreased the protein expression of Sp1. Subsequently, promoter activity and protein expression of IGFBP1 were upregulated by SM, which was not observed in cells with SP1 overexpression. Moreover, the inhibitory effect of SM on cell growth was significantly blocked by knockdown of IGFBP1 expression. More importantly, the combination of SM and GFTN synergistically inhibited the progression of lung cancer. Similar results were observed in experiments in vivo. Finally, the clinical relevance of MALAT1, Sp1 and IGFBP1 was further validated using bioinformatics analysis. Taken together, we confirmed that SM significantly enhanced the anticancer effect of EGFR-TKIs by regulating the MALAT1/miR-141-3p/Sp1/IGFBP1 signaling pathway. This study unravels a novel mechanism and suggests a new potential NSCLC-associated therapy.


Assuntos
Carcinoma Pulmonar de Células não Pequenas , Neoplasias Pulmonares , MicroRNAs , RNA Longo não Codificante , Humanos , Carcinoma Pulmonar de Células não Pequenas/tratamento farmacológico , Carcinoma Pulmonar de Células não Pequenas/genética , Carcinoma Pulmonar de Células não Pequenas/patologia , Gefitinibe/farmacologia , Gefitinibe/uso terapêutico , Neoplasias Pulmonares/tratamento farmacológico , Neoplasias Pulmonares/genética , Neoplasias Pulmonares/patologia , RNA Longo não Codificante/genética , RNA Longo não Codificante/metabolismo , Linhagem Celular Tumoral , Transdução de Sinais , MicroRNAs/genética , MicroRNAs/metabolismo , Receptores ErbB/genética , Receptores ErbB/metabolismo , Resistencia a Medicamentos Antineoplásicos/genética , Inibidores de Proteínas Quinases/farmacologia , Regulação Neoplásica da Expressão Gênica , Proteína 1 de Ligação a Fator de Crescimento Semelhante à Insulina/genética , Proteína 1 de Ligação a Fator de Crescimento Semelhante à Insulina/metabolismo
6.
J Transl Med ; 21(1): 287, 2023 04 28.
Artigo em Inglês | MEDLINE | ID: mdl-37118754

RESUMO

BACKGROUND: Accurate differentiation of pseudoprogression (PsP) from tumor progression (TP) in glioblastomas (GBMs) is essential for appropriate clinical management and prognostication of these patients. In the present study, we sought to validate the findings of our previously developed multiparametric MRI model in a new cohort of GBM patients treated with standard therapy in identifying PsP cases. METHODS: Fifty-six GBM patients demonstrating enhancing lesions within 6 months after completion of concurrent chemo-radiotherapy (CCRT) underwent anatomical imaging, diffusion and perfusion MRI on a 3 T magnet. Subsequently, patients were classified as TP + mixed tumor (n = 37) and PsP (n = 19). When tumor specimens were available from repeat surgery, histopathologic findings were used to identify TP + mixed tumor (> 25% malignant features; n = 34) or PsP (< 25% malignant features; n = 16). In case of non-availability of tumor specimens, ≥ 2 consecutive conventional MRIs using mRANO criteria were used to determine TP + mixed tumor (n = 3) or PsP (n = 3). The multiparametric MRI-based prediction model consisted of predictive probabilities (PP) of tumor progression computed from diffusion and perfusion MRI derived parameters from contrast enhancing regions. In the next step, PP values were used to characterize each lesion as PsP or TP+ mixed tumor. The lesions were considered as PsP if the PP value was < 50% and TP+ mixed tumor if the PP value was ≥ 50%. Pearson test was used to determine the concordance correlation coefficient between PP values and histopathology/mRANO criteria. The area under ROC curve (AUC) was used as a quantitative measure for assessing the discriminatory accuracy of the prediction model in identifying PsP and TP+ mixed tumor. RESULTS: Multiparametric MRI model correctly predicted PsP in 95% (18/19) and TP+ mixed tumor in 57% of cases (21/37) with an overall concordance rate of 70% (39/56) with final diagnosis as determined by histopathology/mRANO criteria. There was a significant concordant correlation coefficient between PP values and histopathology/mRANO criteria (r = 0.56; p < 0.001). The ROC analyses revealed an accuracy of 75.7% in distinguishing PsP from TP+ mixed tumor. Leave-one-out cross-validation test revealed that 73.2% of cases were correctly classified as PsP and TP + mixed tumor. CONCLUSIONS: Our multiparametric MRI based prediction model may be helpful in identifying PsP in GBM patients.


Assuntos
Neoplasias Encefálicas , Glioblastoma , Imageamento por Ressonância Magnética Multiparamétrica , Humanos , Glioblastoma/patologia , Neoplasias Encefálicas/patologia , Progressão da Doença , Imageamento por Ressonância Magnética , Estudos Retrospectivos
7.
Pharmacol Res ; 198: 107007, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37992915

RESUMO

BACKGROUND: In the past, many meta-analyses (MAs) suggested that elemene injection (EI) played a complementary and alternative role in cancer treatment. However, some results were contradictory and a lot of evidences weren't classified. Thus, their clinical guidance effect was very limited. METHODS: Two reviewers independently retrieved 8 databases from their origin to May 19, 2023 and appropriate MAs were taken into consideration. A pooled analysis was conducted to merge results extracted from trials of included MAs. The methodological quality of MAs and the evidence certainty of pooled results were assessed. RESULTS: 31 MAs were taken into analysis with poor methodological quality. The main weaknesses were in the areas of heterogeneity analysis, bias risk, and literature selection. According to the present evidence, on the one hand, compared with conventional treatment (CT) alone, EI combined with CT may significantly enhance short-term or long-term efficacy and reduce adverse reactions caused by CT in multiple cancers. On the other hand, using EI alone also can improve ORR in the malignant (pleural) effusion and lessen the recurrence rate in bladder cancer obviously with fewer adverse reactions compared with CT alone. However, this evidence was rated as moderate to very low certainty mainly due to the risk of bias in clinical trials. CONCLUSION: EI may be a viable medication for the treatment of cancer although more convincing trials are still required to demonstrate its alternative and complementary benefits. Besides, it seems to have a broad potential for further development in immunotherapy, drug delivery technique, and predictive factor.


Assuntos
Sesquiterpenos , Neoplasias da Bexiga Urinária , Humanos
8.
J Neurooncol ; 163(1): 173-183, 2023 May.
Artigo em Inglês | MEDLINE | ID: mdl-37129737

RESUMO

PURPOSE: Autologous tumor lysate-loaded dendritic cell vaccine (DCVax-L) is a promising treatment modality for glioblastomas. The purpose of this study was to investigate the potential utility of multiparametric MRI-based prediction model in evaluating treatment response in glioblastoma patients treated with DCVax-L. METHODS: Seventeen glioblastoma patients treated with standard-of-care therapy + DCVax-L were included. When tumor progression (TP) was suspected and repeat surgery was being contemplated, we sought to ascertain the number of cases correctly classified as TP + mixed response or pseudoprogression (PsP) from multiparametric MRI-based prediction model using histopathology/mRANO criteria as ground truth. Multiparametric MRI model consisted of predictive probabilities (PP) of tumor progression computed from diffusion and perfusion MRI-derived parameters. A comparison of overall survival (OS) was performed between patients treated with standard-of-care therapy + DCVax-L and standard-of-care therapy alone (external controls). Additionally, Kaplan-Meier analyses were performed to compare OS between two groups of patients using PsP, Ki-67, and MGMT promoter methylation status as stratification variables. RESULTS: Multiparametric MRI model correctly predicted TP + mixed response in 72.7% of cases (8/11) and PsP in 83.3% (5/6) with an overall concordance rate of 76.5% with final diagnosis as determined by histopathology/mRANO criteria. There was a significant concordant correlation coefficient between PP values and histopathology/mRANO criteria (r = 0.54; p = 0.026). DCVax-L-treated patients had significantly prolonged OS than those treated with standard-of-care therapy (22.38 ± 12.8 vs. 13.8 ± 9.5 months, p = 0.040). Additionally, glioblastomas with PsP, MGMT promoter methylation status, and Ki-67 values below median had longer OS than their counterparts. CONCLUSION: Multiparametric MRI-based prediction model can assess treatment response to DCVax-L in patients with glioblastoma.


Assuntos
Neoplasias Encefálicas , Glioblastoma , Imageamento por Ressonância Magnética Multiparamétrica , Vacinas , Humanos , Glioblastoma/diagnóstico por imagem , Glioblastoma/terapia , Antígeno Ki-67 , Neoplasias Encefálicas/diagnóstico por imagem , Neoplasias Encefálicas/terapia , Células Dendríticas
9.
BMC Gastroenterol ; 23(1): 123, 2023 Apr 12.
Artigo em Inglês | MEDLINE | ID: mdl-37046206

RESUMO

BACKGROUND: The purpose of this study was to explore the risk factors for postoperative infection in patients with primary hepatic carcinoma (PHC), build a nomogram prediction model, and verify the model to provide a better reference for disease prevention, diagnosis and treatment. METHODS: This single-center study included 555 patients who underwent hepatobiliary surgery in the Department of Hepatobiliary Surgery of Tianjin Third Central Hospital from January 2014 to December 2021, and 32 clinical indicators were selected for statistical analysis. In this study, Lasso logistic regression was used to determine the risk factors for infection after liver cancer resection, establish a predictive model, and construct a visual nomogram. The consistency index (C-index), calibration curve, and receiver operating characteristic (ROC) curve were used for internal validation, and decision curve analysis (DCA) was used to analyze the clinical applicability of the predictive model. The bootstrap method was used for intramodel validation, and the C-index was calculated to assess the model discrimination. RESULTS: Among the 555 patients, 279 patients met the inclusion criteria, of whom 48 had a postoperative infection, with an incidence rate of 17.2%. Body mass index (BMI) (P = 0.022), alpha-fetoprotein (P = 0.023), total bilirubin (P = 0.016), intraoperative blood loss (P < 0.001), and bile leakage (P < 0.001) were independent risk factors for infection after liver cancer surgery. The nomogram was constructed and verified to have good discriminative and predictive ability. DCA showed that the model had good clinical applicability. The C-index value verified internally by the bootstrap method results was 0.818. CONCLUSION: Postoperative infection in patients undergoing hepatectomy may be related to risk factors such as BMI, preoperative AFP level, TBIL level, intraoperative blood loss and bile leakage. The prediction model of the postoperative infection nomogram established in this study can better predict and estimate the risk of postoperative infection in patients undergoing hepatectomy.


Assuntos
Carcinoma , Neoplasias Hepáticas , Humanos , Perda Sanguínea Cirúrgica , Estudos Retrospectivos , Nomogramas , Neoplasias Hepáticas/cirurgia , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/etiologia
10.
Altern Ther Health Med ; 29(8): 668-673, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37678873

RESUMO

Objective: To systematically evaluate the effect of levosimendan on cardiac function and outcomes in patients with sepsis. Method: We searched multiple databases including CNKI, VIP, WanFang Data, WOS, PubMed, EMbase, and The Cochrane Library up to February 2023. We targeted RCTs comparing levosimendan with dobutamine as a control for treating sepsis. After a rigorous screening and quality evaluation, 18 studies were selected for meta-analysis using Review Manager 5.4. Results: Out of 18 studies involving 980 sepsis patients, the meta-analysis revealed the following for the levosimendan group compared to dobutamine: (1) A significant reduction in mortality rate (OR = 0.63, 95% CI (0.42,0.95), P = .03). (2) Shortened ICU stay (MD = -2.55, 95% CI (-3.12, -1.98), P < .00001). (3) Increased left ventricular ejection fraction (LVEF) (MD = 6.05, 95%CI (5.28, 6.81), P < .00001) and cardiac index (CI) (MD = 0.47, 95%CI (0.35, 0.59), P < .00001). (4) Decreased blood lactate (Lac) (MD = -1.31, 95%CI (-1.73, -0.90), P < .00001) and troponin I (TnI) levels (MD = -0.43, 95%CI (-0.66, -0.21), P = .0002). (5) Reduced incidence of adverse events (OR = 0.43, 95% CI (0.23,0.81), P = .008). Conclusions: Compared to dobutamine, levosimendan substantially enhances cardiac function in sepsis patients, leading to improved outcomes and fewer adverse events.


Assuntos
Piridazinas , Sepse , Choque Séptico , Humanos , Simendana/uso terapêutico , Dobutamina/farmacologia , Dobutamina/uso terapêutico , Volume Sistólico , Hidrazonas/farmacologia , Piridazinas/farmacologia , Função Ventricular Esquerda , Sepse/tratamento farmacológico
11.
Chem Biodivers ; 20(3): e202201110, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-36825591

RESUMO

Hepatic fibrosis is a global health problem, which currently has no FDA approved antifibrotic therapy yet. This study aimed to explore the mechanism of Hovenia genus in the treatment of hepatic fibrosis by an integrative strategy combining network pharmacology analysis, molecular docking, transcriptomics and experimental validation. The traditional Chinese medicine systems pharmacology (TCMSP) database and literatures were used to collect the components of Hovenia genus. Public databases including GeneCards, TTD, PharmGkb were used to acquire the putative targets. The GO and KEGG analysis were applied to explore the underlying mechanisms. Furthermore, The TGF-ß1 induced hepatic stellate cells (HSCs) model were performed to evaluate the anti-hepatic fibrosis activity of Hovenia genus. The RT-qPCR, Western blotting and flow cytometry experiments were used to validate the anti-hepatic fibrosis mechanisms of Hovenianin A. The KEGG analysis of network pharmacology and transcriptomics revealed that the core targets mainly enriched in PI3K-Akt signaling pathways. The cell screening results indicated flavonoids were the main active ingredients of Hovenia. Hovenianin A, a bioactive bisflavonol, was validated to promote the apoptosis of HSCs by inhibiting PI3K-Akt pathway. Molecular docking further corroborated the binding sites between Hovenianin A and AKT1. In summary, Hovenia may have therapeutic effects on liver fibrosis by modulating the PI3K-Akt apoptosis pathway. Our findings may facilitate the development of Hovenia genus, which could help to treat liver fibrosis in the future.


Assuntos
Medicamentos de Ervas Chinesas , Rhamnaceae , Fator de Crescimento Transformador beta1/farmacologia , Células Estreladas do Fígado , Simulação de Acoplamento Molecular , Farmacologia em Rede , Fosfatidilinositol 3-Quinases , Proteínas Proto-Oncogênicas c-akt , Transcriptoma , Cirrose Hepática/induzido quimicamente , Cirrose Hepática/tratamento farmacológico , Medicamentos de Ervas Chinesas/farmacologia
12.
Zhongguo Yi Xue Ke Xue Yuan Xue Bao ; 45(4): 689-694, 2023 Aug.
Artigo em Zh | MEDLINE | ID: mdl-37654151

RESUMO

Cold agglutinins(CA),autoantibodies against the antigen I or i on the surface of red blood cells,are mainly of IgM class,and the majority have κ light chains.They can lead to red blood cell agglutination at decreased body temperature and are usually associated with infections,drug reactions,autoimmune diseases,and hematological malignancies.However,solid tumors with CA are rare.We reported two cases of CA in the peripheral blood of patients with solid tumors.Peripheral complete blood cell count of the patients at admission showed reduced erythrocyte count and hematocrit,mismatching between erythrocyte count and hemoglobin,abnormally elevated levels of mean corpuscular hemoglobin and mean cell hemoglobin concentration.Peripheral blood smear showed erythrocyte aggregation.After the sample was preheated at 37 ℃ for 30 min,the reversibility of red blood cell aggregation was observed,and the erythrocyte parameters were corrected.


Assuntos
Autoanticorpos , Neoplasias da Mama , Neoplasias Ovarianas , Humanos , Autoanticorpos/isolamento & purificação , Feminino , Neoplasias da Mama/imunologia , Neoplasias Ovarianas/imunologia
13.
Mol Carcinog ; 61(4): 417-432, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-35040191

RESUMO

Hepatocellular carcinoma (HCC) is one of the most common primary malignancies. Drug resistance has significantly prevented the clinical application of sorafenib (SF), a first-line targeted medicine for the treatment of HCC. Solamargine (SM), a natural alkaloid, has shown potential antitumor activity, but studies about antitumor effect of SM are obviously insufficient in HCC. In the present study, we found that SM significantly inhibited the growth of HCC and enhanced the anticancer effect of SF. In brief, SM significantly inhibited the growth of HepG2 and Huh-7 cells. The combination of SM and SF showed a synergistic antitumor effect. Mechanistically, SM downregulated the expression of long noncoding RNA HOTTIP and TUG1, followed by increasing the expression of miR-4726-5p. Moreover, miR-4726-5p directly bound to the 3'-UTR region of MUC1 and decreased the expression of MUC1 protein. Overexpression of MUC1 partially reversed the inhibitory effect of SM on HepG2 and Huh-7 cells viability, which suggested that MUC1 may be the key target in SM-induced growth inhibition of HCC. More importantly, the combination of SM and SF synergistically restrained the expression of MUC1 protein. Taken together, our study revealed that SM inhibited the growth of HCC and enhanced the anticancer effect of SF through HOTTIP-TUG1/miR-4726-5p/MUC1 signaling pathway. These findings will provide potential therapeutic targets and strategies for the treatment of HCC.


Assuntos
Carcinoma Hepatocelular , Neoplasias Hepáticas , MicroRNAs , RNA Longo não Codificante , Carcinoma Hepatocelular/tratamento farmacológico , Carcinoma Hepatocelular/genética , Carcinoma Hepatocelular/metabolismo , Linhagem Celular Tumoral , Proliferação de Células , Regulação Neoplásica da Expressão Gênica , Humanos , Neoplasias Hepáticas/tratamento farmacológico , Neoplasias Hepáticas/genética , Neoplasias Hepáticas/metabolismo , MicroRNAs/genética , MicroRNAs/metabolismo , Mucina-1/genética , Mucina-1/metabolismo , Mucina-1/uso terapêutico , RNA Longo não Codificante/genética , Alcaloides de Solanáceas , Sorafenibe/farmacologia
14.
NMR Biomed ; 35(7): e4719, 2022 07.
Artigo em Inglês | MEDLINE | ID: mdl-35233862

RESUMO

Pseudoprogression (PsP) refers to treatment-related clinico-radiologic changes mimicking true progression (TP) that occurs in patients with glioblastoma (GBM), predominantly within the first 6 months after the completion of surgery and concurrent chemoradiation therapy (CCRT) with temozolomide. Accurate differentiation of TP from PsP is essential for making informed decisions on appropriate therapeutic intervention as well as for prognostication of these patients. Conventional neuroimaging findings are often equivocal in distinguishing between TP and PsP and present a considerable diagnostic dilemma to oncologists and radiologists. These challenges have emphasized the need for developing alternative imaging techniques that may aid in the accurate diagnosis of TP and PsP. In this review, we encapsulate the current state of knowledge in the clinical applications of commonly used metabolic and physiologic magnetic resonance (MR) imaging techniques such as diffusion and perfusion imaging and proton spectroscopy in distinguishing TP from PsP. We also showcase the potential of promising imaging techniques, such as amide proton transfer and amino acid-based positron emission tomography, in providing useful information about the treatment response. Additionally, we highlight the role of "radiomics", which is an emerging field of radiology that has the potential to change the way in which advanced MR techniques are utilized in assessing treatment response in GBM patients. Finally, we present our institutional experiences and discuss future perspectives on the role of multiparametric MR imaging in identifying PsP in GBM patients treated with "standard-of-care" CCRT as well as novel/targeted therapies.


Assuntos
Neoplasias Encefálicas , Glioblastoma , Neoplasias Encefálicas/diagnóstico por imagem , Neoplasias Encefálicas/patologia , Neoplasias Encefálicas/terapia , Progressão da Doença , Glioblastoma/diagnóstico por imagem , Glioblastoma/patologia , Glioblastoma/terapia , Humanos , Imageamento por Ressonância Magnética/métodos , Prótons
15.
Arch Gynecol Obstet ; 305(2): 397-406, 2022 02.
Artigo em Inglês | MEDLINE | ID: mdl-34713337

RESUMO

INTRODUCTION: To evaluate the pelvic floor muscle function (PFMF) of cervical cancer patients after type QM-C hysterectomy and to explore the relationship between decreased PFMF and related factors. METHODS: This was a multi-centered retrospective cohort study. 181 cervical cancer patients who underwent type QM-C hysterectomy were enrolled from 9 tertiary hospitals. Strength of PFMF were measured using neuromuscular apparatus (Phenix U8, French). Risk factors contributing to decreased PFMF were analyzed by univariate and multivariate ordinal polytomous logistic regression. RESULTS: Totally 181 patients were investigated in this study. 0-3 level of type I muscle fibre strength (MFSI) was 52.6% (95/181), 0-3 level of type IIA muscle fibre strength (MFSIIA) was 50% (91/181). Subjective stress urinary incontinence was 46% (84/181), urinary retention was 27.3% (50/181), dyschezia was 41.5% (75/181), fecal incontinence was 9% (18/181). ① MFSI: Multivariate ordinal polytomous logistic regression shows that the follow-up time (p < 0.05), chemotherapy and radiotherapy (p = 0.038) are independent risk factors of MFSI's reduction after type QM-C hysterectomy. ② MFSIIA: multivariate ordinal polytomous logistic regression shows that the follow-up time (p < 0.05) are independent risk factors of MFSIIA's reduction after type QM-C hysterectomy. The pelvic floor muscle strength (PFMS) increased after 9 months than in 9 months after operation, which showed that the PFMS could be recovered after operation. CONCLUSIONS: We advocate for more attention and emphasis on the PFMF of Chinese female patients with cervical cancer postoperation. PEKING UNIVERSITY PEOPLE'S HOSPITAL: PFMF after QM-C hysterectomy has not been analyzed by current study. The contribution is that patients with radical hysterectomy should do pelvic floor rehabilitation exercises in 3 months after operation. Clinical Trails NCT number of this study is 02492542.


Assuntos
Incontinência Urinária por Estresse , Neoplasias do Colo do Útero , Feminino , Humanos , Histerectomia/efeitos adversos , Diafragma da Pelve , Estudos Retrospectivos , Incontinência Urinária por Estresse/etiologia , Incontinência Urinária por Estresse/cirurgia , Neoplasias do Colo do Útero/etiologia , Neoplasias do Colo do Útero/cirurgia
16.
Neurourol Urodyn ; 40(1): 483-492, 2021 01.
Artigo em Inglês | MEDLINE | ID: mdl-33305849

RESUMO

AIMS: To assess the pelvic floor function in cervical cancer patients after radical hysterectomy and its relationship with urinary incontinence (UI). METHODS: Cervical cancer patients who underwent radical hysterectomy were recruited from 18 hospitals in China from January 2012 to March 2015. Pelvic floor examinations were conducted by measuring the pelvic floor muscle strength, fatigue of pelvic floor muscle fatigue, dynamic pressure of vaginal, nerve injury, A3 feedback, muscle potential, static tension, and dynamic tension. Postoperative urinary incontinence (UI) was identified using the International Consultation on Incontinence Questionnaire. Multivariable logistic regression analysis was used to assess the association of pelvic floor function examination results with postoperative UI. RESULTS: Totally 169 patients were included in this study. The prevalence of UI was 39.6% (67/169). The proportion of abnormal fatigue of Type I muscle (64% vs. 36%, p = .04) and abnormal A3 feedback (53.9% vs. 46.1%, p = .03) were higher among patients with postoperative UI compared to those without UI. In the multivariable analysis, abnormal fatigue of Type I muscle (odds ratio [OR] = 3.73, 95% confidence interval [CI]: 1.42-9.84), abnormal A3 feedback (OR = 2.40, 95% CI: 1.04-5.51), and length of resected vagina > 3 cm (OR = 3.44, 95% CI: 1.27-9.31) were associated with postoperative UI. Compared to laparoscopy, laparotomy was less likely to cause postoperative UI (OR = 0.12, 95% CI:0.04-0.33). CONCLUSIONS: The abnormal function of the pelvic floor muscle is related to postoperative UI. Early assessment among these patients is needed to prevent the development of pelvic floor disorder postoperatively.


Assuntos
Histerectomia/efeitos adversos , Diafragma da Pelve/fisiopatologia , Incontinência Urinária/fisiopatologia , Neoplasias do Colo do Útero/complicações , Adulto , Feminino , Humanos , Histerectomia/métodos , Masculino , Pessoa de Meia-Idade , Distúrbios do Assoalho Pélvico/fisiopatologia , Período Pós-Operatório , Neoplasias do Colo do Útero/cirurgia
17.
J Immunol ; 203(12): 3436-3446, 2019 12 15.
Artigo em Inglês | MEDLINE | ID: mdl-31732527

RESUMO

An allograft is rejected in the absence of any immunosuppressive treatment because of vigorous alloimmunity and thus requires extensive immunosuppression for its survival. Although there are many conventional immunosuppressants for clinical use, it is necessary to seek alternatives to existing drugs, especially in case of transplant patients with complicated conditions. Luteolin, a natural ingredient, exists in many plants. It exhibits multiple biological and pharmacological effects, including anti-inflammatory properties. In particular, luteolin has been shown to upregulate CD4+CD25+ regulatory T cells (Tregs) in the context of airway inflammation. However, it remains unknown whether luteolin regulates alloimmune responses. In this study, we demonstrated that luteolin significantly prolonged murine skin allograft survival, ameliorated cellular infiltration, and downregulated proinflammatory cytokine gene expression in skin allografts. Furthermore, luteolin increased the percentage of CD4+Foxp3+ Tregs while reducing frequency of mature dendritic cells and CD44highCD62Llow effector CD4+/CD8+ T cells posttransplantation. It also suppressed the proliferation of T cells and their production of cytokines IFN-γ and IL-17A in vitro while increasing IL-10 level in the supernatant. Moreover, luteolin promoted CD4+Foxp3+ Treg generation from CD4+CD25- T cells in vitro. Depleting Tregs largely, although not totally, reversed luteolin-mediated extension of allograft survival. More importantly, luteolin inhibited AKT/mTOR signaling in T cells. Thus, for the first time, to our knowledge, we found that luteolin is an emerging immunosuppressant as an mTOR inhibitor in allotransplantation. This finding could be important for the suppression of human allograft rejection, although it remains to be determined whether luteolin has an advantage over other conventional immunosuppressants in suppression of allograft rejection.


Assuntos
Aloenxertos/efeitos dos fármacos , Aloenxertos/imunologia , Rejeição de Enxerto/imunologia , Terapia de Imunossupressão , Imunossupressores/farmacologia , Luteolina/farmacologia , Animais , Citocinas/genética , Citocinas/metabolismo , Regulação da Expressão Gênica/efeitos dos fármacos , Rejeição de Enxerto/tratamento farmacológico , Rejeição de Enxerto/prevenção & controle , Sobrevivência de Enxerto/efeitos dos fármacos , Sobrevivência de Enxerto/imunologia , Imunofenotipagem , Inflamação/etiologia , Inflamação/metabolismo , Inflamação/patologia , Mediadores da Inflamação/metabolismo , Contagem de Linfócitos , Masculino , Camundongos , Transplante de Pele , Subpopulações de Linfócitos T/efeitos dos fármacos , Subpopulações de Linfócitos T/imunologia , Subpopulações de Linfócitos T/metabolismo
18.
Future Oncol ; 17(13): 1637-1652, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-33478265

RESUMO

Objective: The target of this work was to analyze the clinical characteristics and construct nomograms to predict prognosis in patients with cervical adenosquamous carcinoma (ASC). Methods: A total of 788 ASC patients were tracked in the Surveillance, Epidemiology and End Results database. We compared the clinical characteristics and prognostic factors of ASC. Cox regression models were established, and nomograms were constructed and verified. Results: ASC patients have lower age levels and higher histological grades than patients with squamous cell carcinoma. Nomograms were constructed with good consistency and feasibility in clinical practice. The C-indices for overall survival and cancer-specific survival were 0.783 and 0.787, respectively. Conclusion: ASC patients have unique clinicopathological and prognostic characteristics. Nomograms were successfully constructed and verified.


Assuntos
Carcinoma Adenoescamoso/mortalidade , Carcinoma de Células Escamosas/mortalidade , Nomogramas , Neoplasias do Colo do Útero/mortalidade , Adulto , Carcinoma Adenoescamoso/diagnóstico , Carcinoma Adenoescamoso/patologia , Carcinoma Adenoescamoso/terapia , Carcinoma de Células Escamosas/diagnóstico , Carcinoma de Células Escamosas/patologia , Carcinoma de Células Escamosas/terapia , Colo do Útero/patologia , Tomada de Decisão Clínica/métodos , Estudos de Viabilidade , Feminino , Humanos , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Medição de Risco/métodos , Medição de Risco/estatística & dados numéricos , Programa de SEER/estatística & dados numéricos , Neoplasias do Colo do Útero/diagnóstico , Neoplasias do Colo do Útero/patologia , Neoplasias do Colo do Útero/terapia
19.
Appl Opt ; 60(25): 7790-7797, 2021 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-34613252

RESUMO

Utilizing the near-field enhancement effect of a polystyrene microsphere, direct ablation of nanohole arrays by a temporal-shaping femtosecond (fs) laser pulse is presented. The nanohole arrays, which are circular, regular, and free of cracks, were processed without extra post-processing, and their average diameter decreased gradually, as the double-pulse delay increased until 2500 fs. The simulated results by a plasma model and finite difference time domain solution demonstrate that the size decrease of the structure is attributed to the increase of the ablation threshold of silicon. Through fs laser near-field fabrication, the FWHM of nanoholes can be reduced to approximately 50 nm (λ/16) and even to 23 nm when using the second harmonic laser at a wavelength of 400 nm.

20.
Intern Med J ; 51(9): 1505-1512, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-33469994

RESUMO

BACKGROUND: No antibiotic therapies have been approved for reducing exacerbations and preventing disease progression in non-cystic fibrosis bronchiectasis (NCFB) patients. Several recent clinical studies have investigated the feasibility of inhaled ciprofloxacin in NCFB, whereas the results were controversial. AIM: No antibiotic therapies have been approved for reducing exacerbations and preventing disease progression in non-cystic fibrosis bronchiectasis (NCFB) patients. Several recent clinical studies have investigated the feasibility of inhaled ciprofloxacin in NCFB, whereas the results were controversial. We conducted the present meta-analysis to comprehensively evaluate the feasibility of inhalation of ciprofloxacin in NCFB. METHODS: Electrical databases Medline and Cochrane library were retrieved from inception through December 2019. Randomised controlled trials (RCT) comparing inhaled ciprofloxacin and placebo were selected. The primary outcomes were time to first exacerbation, frequency of exacerbations and the change in sputum Pseudomonas aeruginosa density. RESULTS: A total of five articles involving six RCT was finally included in the analysis. The time to first exacerbation was significantly prolonged by inhaled ciprofloxacin (hazard ratio: 0.72, 95% confidence interval (CI): 0.63-0.82), with low heterogeneity (I2 = 23%). Inhalation of ciprofloxacin significantly reduced frequency of exacerbations (risk ratio: 0.70, 95% CI: 0.61-0.79) and decreased density of sputum P. aeruginosa (weighted mean difference: -2.11 log10 CFU/g, 95% CI: -2.96 to -1.27 log10 CFU/g) compared with placebo. No significant between-group differences in mortality, adverse events and discontinuation rate were observed. Further indirect treatment comparison showed no differences between the two types of inhaled ciprofloxacin in all outcomes of interest. CONCLUSIONS: Ciprofloxacin inhalation treatment significantly prolonged the time to first exacerbation, reduced the frequency of exacerbations and decreased sputum P. aeruginosa density and was well tolerated. Ciprofloxacin inhalation is promising in the treatment of NCFB.


Assuntos
Bronquiectasia , Fibrose Cística , Infecções por Pseudomonas , Antibacterianos/uso terapêutico , Bronquiectasia/tratamento farmacológico , Ciprofloxacina , Fibrose Cística/tratamento farmacológico , Humanos , Infecções por Pseudomonas/tratamento farmacológico , Pseudomonas aeruginosa
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