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1.
Mol Biotechnol ; 2024 Jun 08.
Artigo em Inglês | MEDLINE | ID: mdl-38850457

RESUMO

Long intergenic non-coding RNA 239 (Linc00239) acts as an oncogene in colorectal cancer (CRC), esophageal squamous cell carcinoma, and acute myeloid leukemia cells. However, its role and regulatory mechanisms in clear cell renal cell carcinoma (ccRCC) remain unknown. We used StarBase and The Cancer Genome Atlas databases to evaluate Linc00239 expression and its effect on ccRCC. Furthermore, the function of Linc00239 in ccRCC proliferation and metastasis was analyzed using Cell Counting Kit-8 and Transwell assays following Linc00239 knockdown. Subsequently, the Linc00239-miRNA-mRNA regulatory associations were selected based on miRanda, miTarbase, and previous references, and their expression levels and binding relationship were further validated using quantitative real-time polymerase chain reaction, western blotting and dual-luciferase reporter gene assay. Additionally, we transfected a miRNA inhibitor to evaluate whether the miR-204-5p/RAB22A (Ras-related proteins in brain 22a) axis was involved in Linc00239 function. Linc00239 was elevated in ccRCC and correlated with poor prognosis. Linc00239 knockdown inhibited ccRCC progression. Additionally, Linc00239 inhibition elevated miR-204-5p expression and repressed RAB22A levels. Moreover, miR-204-5p inhibitors attenuated this inhibitory effect on proliferation, migration, invasion, and RAB22A level when Linc00239 was knocked down. Linc00239 promotes ccRCC proliferation and metastasis by elevating RAB22A expression through the adsorption of miR-204-5p, which provides a clue for the diagnosis and treatment of ccRCC.

2.
Gene ; 882: 147628, 2023 Oct 05.
Artigo em Inglês | MEDLINE | ID: mdl-37429368

RESUMO

OBJECTIVE: The objective of our study is to investigate the role and potential mechanism of linc00023 in the development of pyroptosis in clear cell renal cell carcinoma (ccRCC). METHODS: We assessed the expression of linc00023 in cells using qRT-PCR. Following linc00023 knockdown, we monitored cell proliferation and the pyroptosis marker using MTS, qRT-PCR, western blot analysis, and ELISA assays. Additionally, we performed RNA sequencing after linc00023 knockdown and validated the involvement of p53 using western blot analysis. Furthermore, we evaluated the potential mechanism by assessing cell proliferation and the expression of the pyroptosis marker after treatment with a p53 activator in linc00023-inhibited cells. RESULTS: Linc00023 expression was downregulated in ccRCC cells. Among them, ACHN cells exhibited higher linc00023 expression and were selected for further investigation. Knockdown of linc00023 resulted in increased cell proliferation and decreased pyroptosis. Furthermore, inhibition of linc00023 led to changes in the expression of numerous mRNAs, including p53. Importantly, the p53 activator ReACp53 reversed the effects of linc00023 knockdown on cell proliferation and pyroptosis. CONCLUSION: In conclusion, our findings suggested that linc00023 regulates pyroptosis in ccRCC by modulating p53 expression.


Assuntos
Carcinoma de Células Renais , Neoplasias Renais , Humanos , Carcinoma de Células Renais/metabolismo , Neoplasias Renais/patologia , Proteína Supressora de Tumor p53/genética , Proteína Supressora de Tumor p53/metabolismo , Piroptose/genética , Linhagem Celular Tumoral , Proliferação de Células/genética
3.
Hum Cell ; 36(5): 1790-1803, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37418232

RESUMO

Renal cell carcinoma (RCC) is the most common form of kidney cancer in adults. Despite new therapeutic modalities, the outcomes for RCC patients remain unsatisfactory. Rho-associated coiled-coil forming protein kinase 2 (ROCK2) has previously been shown to be upregulated in RCC, and its expression was negatively correlated with patient survival. However, the precise molecular function of ROCK2 has remained unclear. Herein, using RNA-seq analysis of ROCK2 knockdown and control cells, we identified 464 differentially expressed genes, and 1287 alternative splicing events in 786-O RCC cells. Furthermore, mapping of iRIP-seq reads in 786-O cells showed a biased distribution at 5' UTR, intronic and intergenic regions. By comparing ROCK2-regulated alternative splicing and iRIP-seq data, we found 292 overlapping genes that are enriched in multiple tumorigenic pathways. Taken together, our work defined a complex ROCK2-RNA interaction map on a genomic scale in a human RCC cell line, which deepens our understanding of the molecular function of ROCK2 in cancer development.


Assuntos
Carcinoma de Células Renais , Neoplasias Renais , Humanos , Carcinoma de Células Renais/genética , RNA , Neoplasias Renais/genética , Carcinogênese , Quinases Associadas a rho/genética
4.
Oncol Lett ; 24(4): 377, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-36238848

RESUMO

The present study aimed to clarify the role of microRNA (miR)-5590-3p in the progression of renal cell carcinoma (RCC) and investigate the underlying mechanisms. The expression levels of miR-5590-3p, Rho-associated protein kinase (ROCK)2 and ß-catenin in RCC cells were measured by reverse transcription-quantitative PCR and western blot analysis. Following overexpression of miR-5590-3p and ROCK2 by transfection of miR-5590-3p mimics and GV367-ROCK2, respectively, changes in the proliferation, migration and invasion of RCC cells were determined through colony-formation, wound-healing and Transwell assays, respectively. The direct binding interaction between miR-5590-3p and ROCK2, initially predicted using Targetscan, was validated by a dual-luciferase reporter assay. The results indicated that miR-5590-3p was downregulated in RCC. Overexpression of miR-5590-3p led to downregulation of ROCK2 and ß-catenin and inhibited the proliferation, migration and invasion of RCC cells. The dual-luciferase reporter assay confirmed the binding relationship between miR-5590-3p and ROCK2. Of note, overexpression of ROCK2 effectively reversed the regulatory effects of miR-5590-3p on RCC cells. In conclusion, miR-5590-3p inhibits the proliferation, migration and invasion of RCC cells by targeting ROCK2, which is a potential molecular biomarker and therapeutic target for RCC.

5.
Cell Rep ; 40(3): 111097, 2022 07 19.
Artigo em Inglês | MEDLINE | ID: mdl-35858551

RESUMO

Neuroendocrine (NE)-like tumors secrete various signaling molecules to establish paracrine communication within the tumor milieu and to create a therapy-resistant environment. It is important to identify molecular mediators that regulate this secretory phenotype in NE-like cancer. The current study highlights the importance of a cell surface molecule, Neuropilin-2 (NRP2), for the secretory function of NE-like prostate cancer (PCa). Our analysis on different patient cohorts suggests that NRP2 is high in NE-like PCa. We have developed cell line models to investigate NRP2's role in NE-like PCa. Our bioinformatics, mass spectrometry, cytokine array, and other supporting experiments reveal that NRP2 regulates robust secretory phenotype in NE-like PCa and controls the secretion of factors promoting cancer cell survival. Depletion of NRP2 reduces the secretion of these factors and makes resistant cancer cells sensitive to chemotherapy in vitro and in vivo. Therefore, targeting NRP2 can revert cellular secretion and sensitize PCa cells toward therapy.


Assuntos
Neuropilina-2 , Neoplasias da Próstata , Linhagem Celular Tumoral , Humanos , Masculino , Neuropilina-2/metabolismo , Fenótipo , Próstata/metabolismo , Neoplasias da Próstata/genética , Transdução de Sinais/fisiologia
6.
Oncol Rep ; 48(1)2022 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-35674183

RESUMO

The Yippee­like (YPEL) gene family is composed of five members encoding a protein containing a zinc finger­like metal­binding domain. Due to its structure and location in cells, this domain is considered to be involved in cell multiplication and numerous types of cancer. However, the relationship between the protein and the prognosis of clear cell renal cell carcinoma (ccRCC) remains unknown. In the present study, using pan­cancer data from the updated public database, the expression and correlation of YPEL genes in 33 types of cancer was systematically and comprehensively analyzed. The prognostic value of YPEL genes was evaluated by survival and Cox regression analysis. Considering the relationship between the tumor microenvironment and stem cell indices, the function of superoxide dismutase was evaluated. Tumor Immune Assessment Resources (TIMER) and CIBERSORT algorithm analysis were used to evaluate the correlation between YPEL genes and tumor immune infiltrating cells (TIICs). Furthermore, knockdown experiments of YPEL genes were developed to explore their effects on ccRCC cell proliferation, migration and invasion in ccRCC cell lines. Members of the YPEL family were differentially expressed in ccRCC. Increased expression levels of YPEL1, YPEL2, and YPEL5 were associated with improved overall survival and disease­specific survival. TIMER and CIBERSORT analyses showed remarkable correlation between YPEL family members and TIICs. More importantly, the results of Cell Counting Kit­8, EdU and Transwell assays revealed that the multiplication, migration and invasion abilities of ccRCC cell lines could be promoted by knocking out YPEL1, YPEL2 and YPEL5. In conclusion, the present study provided new insight into the different roles of YPEL1, YPEL2 and YPEL5 in ccRCC, and the relationship between YPEL1 and immune infiltration may offer new options for future clinical treatment.


Assuntos
Carcinoma de Células Renais , Neoplasias Renais , Humanos , Biomarcadores Tumorais/metabolismo , Carcinoma de Células Renais/patologia , Neoplasias Renais/patologia , Prognóstico , Microambiente Tumoral/genética
7.
Hemoglobin ; 46(4): 191-196, 2022 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-35549797

RESUMO

ß-Thalassemia major (ß-TM) is an inherited disorder of hemoglobin (Hb) production, which can cause severe anemia. A compromised immune system has been observed in patients with ß-TM, whereas cytokines have a major role in immune modulation. Interleukin-4 (IL-4), IL-8, IL-13 and transforming growth factor-ß (TGF-ß) are critical in initiating pro-inflammatory responses, and the serum levels of those cytokines may be involved in the pathophysiology of ß-thalassemia (ß-thal). To assess this hypothesis, we studied 23 pediatric patients with ß-TM by measuring serum levels of IL-4, IL-8, IL-13 and TGF-ß, as well as evaluating infection frequency per year, total number of transfusions and serum ferritin (SF) levels, together with age-matched healthy controls. We found that patients with ß-thal had higher IL-8, IL-13 and TGF-ß concentrations than normal controls, whereas markedly decreased serum IL-4 level was documented in patients with ß-TM. Serum IL-4 level of ß-thal patients showed a negative significant correlation with infection frequency, total number of transfusions and SF levels. On the contrary, serum levels of IL-8, IL-13 and TGF-ß exerted a positive relationship with those clinical parameters. Taken together, our study implies that dysregulated cytokine profile might contribute to iron overloads and impair immune cell functions, thus serving as useful biomarkers for diagnosis and evaluation of ß-TM in the future. Our study sheds new light on the pathogenesis of ß-TM.


Assuntos
Talassemia beta , Criança , Humanos , Interleucina-13 , Interleucina-4 , Interleucina-8 , Citocinas , Fator de Crescimento Transformador beta
8.
Cell Cycle ; 21(4): 340-351, 2022 02.
Artigo em Inglês | MEDLINE | ID: mdl-34974812

RESUMO

Drug resistance is a significant challenge in the present treatment regimens of renal cell carcinoma (RCC). Our previous study confirmed that nc886 functions as an oncogene in RCC. Nevertheless, the role and underlying mechanism of nc886 in RCC drug resistance are unclear. In the present study, Sunitinib and Everolimus treatment, respectively, downregulated nc886 expression in a dose-dependent manner in all four renal cancer cell lines. Nc886 overexpression in 786-O cells and ACHN cells significantly reduced the sensitivity of cancer cells to both Sunitinib and Everolimus treatment, respectively, by promoting cell viability and inhibiting cell apoptosis, whereas nc886 silencing increased cancer cell sensitivity. In renal cancer cell line with the highest drug-resistance, 786-O cells, Sunitinib, or Everolimus treatment enhanced the cellular EMT and was further enhanced by nc886 overexpression while attenuated by nc886 silencing. In 786-O cells, nc886 overexpression significantly promoted EMT, ROCK2 phosphorylation, and ß-catenin nucleus translocation under Sunitinib or Everolimus treatment. Moreover, ROCK2 silencing significantly reversed the effects of nc886 overexpression on EMT, ROCK2 phosphorylation, and ß-catenin nucleus translocation, as well as drug-resistant renal cancer cell viability and apoptosis. In conclusion, it was demonstrated that nc886 promotes renal cancer cell proliferation, migration, and invasion, as demonstrated previously. nc886 also promotes renal cancer cell drug-resistance to Sunitinib or Everolimus by promoting EMT through Rock2 phosphorylation-mediated nuclear translocation of ß-catenin.


Assuntos
Carcinoma de Células Renais , Neoplasias Renais , Carcinoma de Células Renais/patologia , Linhagem Celular Tumoral , Proliferação de Células , Transição Epitelial-Mesenquimal , Everolimo/farmacologia , Feminino , Humanos , Neoplasias Renais/patologia , Masculino , Fosforilação , Transdução de Sinais , Sunitinibe/farmacologia , Sunitinibe/uso terapêutico , beta Catenina/metabolismo , Quinases Associadas a rho/metabolismo , Quinases Associadas a rho/farmacologia , Quinases Associadas a rho/uso terapêutico
9.
Bioengineered ; 12(2): 11376-11389, 2021 12.
Artigo em Inglês | MEDLINE | ID: mdl-34852712

RESUMO

Recent studies have shown that circular RNA circFLNA is abnormally expressed in a variety of malignant tumors, but its role and mechanism in bladder carcinoma (BCa) are still unclear. The present paper aims to contribute to research on the effects and mechanism of circFLNA on the malignant phenotype of BCa. In this study, the expressions of circFLNA, miR-216a-3p and BTG2 in BCa and BCa cells (EJ, T24, 5637, TCC-SUP) were detected by qRT-PCR. EdU staining, colony formation, Transwell assay, wound healing assays, and sphere formation assay were used to measure the cell proliferation, viability, invasion, migration, and cell stemness of BCa cells after circFLNA overexpression. In addition, the correlation existed between miR-216a-3p and circFLNA or BTG2 was confirmed by Dual-Luciferase Reporter assay and RNA pull-down. Western blot was utilized to determine the expression of BTG2, MMP2, epithelial-mesenchymal transition (EMT)-related proteins (vimentin, E-cadherin) and stem cell-specific proteins (CD34, OCT4, SOX2). Our study confirmed that downregulated circFLNA and BTG2 expression and upregulated miR-216a-3p were found in both BCa tissues and cell lines. Meanwhile, upregulated circFLNA inhibited proliferation, invasion and migration, EMT and stemness of BCa cells. MiR-216a-3p was a target gene of circFLNA and could target BTG2. Further analysis finally demonstrated that circFLNA sponged miR-216a-3p and indirectly promoted BTG2 expression, ultimately regulating proliferation, migration, invasion and EMT of BCa cells. In conclusion, circFLNA inhibits the malignant phenotype of BCa cells and their stemness through miR-216a-3p/BTG2, thus suppressing BCa progression.


Assuntos
Proteínas Imediatamente Precoces/metabolismo , MicroRNAs/metabolismo , RNA Circular/metabolismo , Proteínas Supressoras de Tumor/metabolismo , Neoplasias da Bexiga Urinária/genética , Neoplasias da Bexiga Urinária/patologia , Sequência de Bases , Linhagem Celular Tumoral , Regulação para Baixo/genética , Regulação Neoplásica da Expressão Gênica , Humanos , Proteínas Imediatamente Precoces/genética , MicroRNAs/genética , Células-Tronco Neoplásicas/metabolismo , Células-Tronco Neoplásicas/patologia , RNA Circular/genética , Transdução de Sinais , Esferoides Celulares/metabolismo , Esferoides Celulares/patologia , Proteínas Supressoras de Tumor/genética
10.
Mol Cell Endocrinol ; 537: 111440, 2021 11 01.
Artigo em Inglês | MEDLINE | ID: mdl-34428509

RESUMO

Ataxin-3 (ATXN3) is a ubiquitous deubiquitinating enzyme that plays an essential role in the carcinogenesis of numerous tumors and stabilizes the expression of substrates by deubiquitination. However, the functional role of ATXN3 in anaplastic thyroid carcinoma (ATC) remains unknown. In this research, we report that ATXN3 was overexpressed in ATC compared to that in paracancerous samples. Moreover, various gain/loss functional assays were performed to indicate that ATXN3 overexpression enhanced ATC cell proliferation and metastasis. We also found that ATXN3 and eukaryotic translation initiation factor 5A2 (EIF5A2) protein levels in ATC tissues are positively correlated, and ATXN3 promotes the proliferation and metastasis of ATC cells through EIF5A2. Mechanistically, ATXN3 promotes EIF5A2 expression by directly binding to EIF5A2 to reduce its ubiquitination and degradation. Therefore, for the first time, we clarified the role of ATXN3 in the carcinogenesis of ATC cells, which provides novel insights into potential therapeutic targets for ATC progression.


Assuntos
Ataxina-3/metabolismo , Progressão da Doença , Fatores de Iniciação de Peptídeos/metabolismo , Proteínas de Ligação a RNA/metabolismo , Proteínas Repressoras/metabolismo , Carcinoma Anaplásico da Tireoide/patologia , Animais , Ataxina-3/genética , Linhagem Celular Tumoral , Proliferação de Células/genética , Regulação Neoplásica da Expressão Gênica , Humanos , Camundongos Nus , Metástase Neoplásica , Fatores de Iniciação de Peptídeos/genética , Estabilidade Proteica , Proteínas de Ligação a RNA/genética , Proteínas Repressoras/genética , Carcinoma Anaplásico da Tireoide/genética , Ubiquitinação , Regulação para Cima/genética , Fator de Iniciação de Tradução Eucariótico 5A
11.
Exp Cell Res ; 405(1): 112646, 2021 08 01.
Artigo em Inglês | MEDLINE | ID: mdl-34029571

RESUMO

The deubiquitinating enzyme USP46 (ubiquitin-specific protease 46) is implicated in various cancers. However, its role and regulatory mechanism in HCC (hepatocellular carcinoma) are still unknown. In this study, we showed that USP46 is downregulated in HCC tissues and that low USP46 levels are associated with poor prognosis in HCC patients. In functional experiments, overexpression of USP46 impaired proliferation and metastasis of HCC cells, whereas knockdown of USP46 enhanced cell proliferation and invasiveness in vitro and in vivo. Furthermore, we found that USP46 suppresses HCC cell proliferation and metastasis by inhibiting YAP1. Ectopic expression of YAP1 rescued the inhibition of cell proliferation and metastasis caused by USP46 overexpression. Mechanistically, USP46 promotes the degradation of YAP1 by increasing expression of MST1, and the increase in MST1 protein antagonizes YAP1 to suppress HCC progression. Finally, we demonstrated that USP46 stabilizes the MST1 protein by directly binding to it and decreasing its ubiquitination. Taken together, our results demonstrated that USP46 may be a novel tumor suppressor in HCC. Moreover, USP46 acts as a deubiquitinating enzyme of MST1 to potentiate MST1 kinase activity to suppress tumor growth and metastasis, indicating that USP46 activation may represent a potential treatment strategy for HCC.


Assuntos
Biomarcadores Tumorais/metabolismo , Carcinoma Hepatocelular/patologia , Endopeptidases/metabolismo , Regulação Neoplásica da Expressão Gênica , Fator de Crescimento de Hepatócito/metabolismo , Neoplasias Hepáticas/patologia , Proteínas Proto-Oncogênicas/metabolismo , Ubiquitinação , Animais , Apoptose , Biomarcadores Tumorais/genética , Carcinoma Hepatocelular/genética , Carcinoma Hepatocelular/metabolismo , Movimento Celular , Proliferação de Células , Endopeptidases/genética , Feminino , Fator de Crescimento de Hepatócito/genética , Humanos , Neoplasias Hepáticas/genética , Neoplasias Hepáticas/metabolismo , Masculino , Camundongos , Camundongos Nus , Pessoa de Meia-Idade , Invasividade Neoplásica , Fosforilação , Prognóstico , Proteínas Proto-Oncogênicas/genética , Células Tumorais Cultivadas , Ensaios Antitumorais Modelo de Xenoenxerto
12.
Int. braz. j. urol ; 47(1): 46-60, Jan.-Feb. 2021. tab, graf
Artigo em Inglês | LILACS | ID: biblio-1134331

RESUMO

ABSTRACT Purpose: Radical nephrectomy (RN) is the standard surgical type for pathological stage T3a (pT3a) renal cell carcinoma (RCC). Recently, some studies have suggested equivalence between partial nephrectomy (PN) and RN for oncologic control and have shown the benefits of PN for better renal function. We conducted this meta-analysis to assess oncologic outcomes, perioperative outcomes and renal function between two groups among patients with pT3a RCC. Materials and methods: PubMed, Scopus, Web of Science, Science Direct, Ovid MEDLINE, The Cochrane Library, Embase and Google Scholar were searched for eligible articles. The endpoints of the final analysis included overall survival (OS), cancer-specific survival (CSS), recurrence-free survival (RFS), surgical complications, operative time, estimated blood loss (EBL), serum creatinine and estimated glomerular filtration rate (eGFR). Results: Twelve studies of moderate to high quality, including 14.152 patients, were examined. PN showed superiority for renal functional preservation, providing higher eGFR (WMD=12.48mL/min; 95%CI: 10.28 to 14.67; P <0.00001) and lower serum creatinine (WMD=-0.31mg/dL; 95%CI: −0.40 to −0.21; P <0.00001). There were no significant differences between PN and RN regarding operative time, EBL, surgical complications, OS, RFS and CSS. Despite inherent selection bias, most pooled estimates were consistent in sensitivity analysis and subgroup analysis. More positive margins were found in the PN group (RR=2.42; 95%CI: 1.25-4.68; P=0.009). Conclusions: PN may be more suitable for treating pT3a RCC than RN because it provides a similar survival time (OS or RFS) and superior renal function. Nevertheless, this result is still disputed, and more high-quality studies are required.


Assuntos
Humanos , Carcinoma de Células Renais/cirurgia , Neoplasias Renais/cirurgia , Estudos Retrospectivos , Resultado do Tratamento , Margens de Excisão , Taxa de Filtração Glomerular , Nefrectomia
13.
Int Braz J Urol ; 47(1): 46-60, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-32271510

RESUMO

PURPOSE: Radical nephrectomy (RN) is the standard surgical type for pathological stage T3a (pT3a) renal cell carcinoma (RCC). Recently, some studies have suggested equivalence between partial nephrectomy (PN) and RN for oncologic control and have shown the benefits of PN for better renal function. We conducted this meta-analysis to assess oncologic outcomes, perioperative outcomes and renal function between two groups among patients with pT3a RCC. MATERIALS AND METHODS: PubMed, Scopus, Web of Science, Science Direct, Ovid MEDLINE, The Cochrane Library, Embase and Google Scholar were searched for eligible articles. The endpoints of the final analysis included overall survival (OS), cancer-specific survival (CSS), recurrence-free survival (RFS), surgical complications, operative time, estimated blood loss (EBL), serum creatinine and estimated glomerular filtration rate (eGFR). RESULTS: Twelve studies of moderate to high quality, including 14.152 patients, were examined. PN showed superiority for renal functional preservation, providing higher eGFR (WMD=12.48mL/min; 95%CI: 10.28 to 14.67; P < 0.00001) and lower serum creatinine (WMD=-0.31mg/dL; 95%CI: -0.40 to -0.21; P < 0.00001). There were no significant differences between PN and RN regarding operative time, EBL, surgical complications, OS, RFS and CSS. Despite inherent selection bias, most pooled estimates were consistent in sensitivity analysis and subgroup analysis. More positive margins were found in the PN group (RR=2.42; 95%CI: 1.25-4.68; P=0.009). CONCLUSIONS: PN may be more suitable for treating pT3a RCC than RN because it provides a similar survival time (OS or RFS) and superior renal function. Nevertheless, this result is still disputed, and more high-quality studies are required.


Assuntos
Carcinoma de Células Renais , Neoplasias Renais , Carcinoma de Células Renais/cirurgia , Taxa de Filtração Glomerular , Humanos , Neoplasias Renais/cirurgia , Margens de Excisão , Nefrectomia , Estudos Retrospectivos , Resultado do Tratamento
14.
Front Oncol ; 10: 313, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32211333

RESUMO

Background: The standard sunitinib schedule to treat metastatic renal cell carcinoma (mRCC) is 4 weeks on/2 weeks off (4/2). However, some studies revealed intolerable adverse events (AEs) in patients on this schedule. An alternative schedule, 2 weeks on/1 week off (2/1), may overcome this issue. This meta-analysis was performed to compare the effectiveness and toxicity between the 2/1 and 4/2 sunitinib dosing schedules. Methods: We acquired relevant studies by searching PubMed, ScienceDirect, the Cochrane Library, Scopus, Ovid MEDLINE, Embase, Web of Science, and Google Scholar. Our main endpoints included overall survival (OS), progression-free survival (PFS), objective response rate (ORR), disease control rate (DCR), and AEs. Results: We identified 9 medium- and high-quality studies. Both schedules were effective for mRCC, with comparable OS and similar ORR. However, the 2/1 schedule had better PFS (hazard ratio (HR) = 0.81, 95% confidence interval [CI]: 0.66-0.99, P = 0.04), higher DCR [risk rate (RR) = 1.22, 95% CI: 1.01-1.47, P = 0.04] and fewer dosage interruptions (RR = 0.60, 95% CI: 0.43-0.84, P = 0.003). Additionally, the 2/1 schedule elicited fewer specific severe AEs, including thrombocytopenia/platelet disorder, hand-foot syndrome, hypertension, and fatigue. In our subanalysis, PFS was better among East Asians using the 2/1 schedule than among other populations (HR= 0.75, 95% CI: 0.58-0.98, P = 0.03), and patients administered an initial dosage of 50 mg/d on the 2/1 schedule had superior PFS (HR = 0.76, 95% CI: 0.59-0.97, P = 0.03) than those others. Conclusions: These findings suggest that the 2/1 schedule is more suitable for mRCC than 4/2, due to superior PFS, better DCR and fewer AEs. Nevertheless, more large-scale studies with good quality are needed.

15.
J BUON ; 24(3): 1186-1193, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31424678

RESUMO

PURPOSE: To investigate the effect and molecular mechanism of miR-490 in prostate cancer. METHODS: qRT-PCR was used to detect the expression of miR-490 in human prostate cancer PC-3 cell line (the control group B) and normal human prostate cells (the control group A), the overexpression vector (the positive group) and human prostate cancer PC-3 cells transfected by negative control (the negative group) were built, and the results of the transfection were detected by qRT-PCR. RESULTS: The relative expression levels of miR-490 in the cells in the control group A, the control group B and the negative group were lower than that in the positive group (p<0.05). The OD values of the cells in the negative and positive groups both increased continuously over time (p<0.05). The OD values of the cells in the positive group at each time point were lower than those in the negative group (p<0.05). CONCLUSION: The low expression and overexpression of miR-490 in prostate cancer may inhibit the proliferation, migration and invasion of prostate cancer cells and promote apoptosis by inhibiting the phosphorylation of AKT signal pathway.


Assuntos
MicroRNAs/metabolismo , Neoplasias da Próstata/genética , Linhagem Celular Tumoral , Humanos , Masculino , Células PC-3 , Transfecção
16.
Front Oncol ; 9: 479, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31293962

RESUMO

Purpose: Sorafenib and sunitinib are extensively used as first-line medications for metastatic renal cell carcinoma (mRCC). This meta-analysis was conducted to assess the antitumor efficacy, toxicity, and costs of the two drugs among mRCC patients. Materials and methods: PubMed, ScienceDirect, Scopus, Web of Science, Ovid MEDLINE, the Cochrane Library, Embase, and Google Scholar were searched for eligible articles. The endpoints consisted of progression-free survival (PFS), overall survival (OS), objective response rate (ORR), adverse effects (AEs), and per-patient-per-month (PPPM) costs. Results: We included 14 studies with 2,925 patients. Both drugs were valid for treating mRCC with equivalent PFS [hazard ratio (HR) = 0.98, 95% confidence interval (CI): 0.88-1.10, P = 0.74] and disease control rates [DCRs; risk ratio (RR) = 1.03, 95% CI: 0.98-1.08, P = 0.28], but sunitinib had a better OS (HR = 1.10, 95% CI: 1.01-1.20, P = 0.04) and higher ORR (HR = 0.66, 95% CI: 0.45-0.97, P = 0.03) than sorafenib. Furthermore, sunitinib induced more incidences of severe hematologic AEs (anemia, neutropenia, and thrombocytopenia) and stomatitis/mucositis than sorafenib. In the subanalysis, Asian patients treated with sorafenib reported a longer PFS than those treated with sunitinib (HR = 0.87, 95% CI: 0.83-0.90, P = 0.01), and European patients treated with sunitinib had a longer OS than those treated with sorafenib (HR = 1.17, 95% CI: 1.01-1.30, P = 0.04). Moreover, the pooled results of the high-quality studies reported a higher ORR with sunitinib than with sorafenib, and medium-quality studies showed a longer OS with sunitinib than with sorafenib. Conclusions: Sunitinib has more benefits (longer OS and better ORR) than sorafenib as a first-line therapy for mRCC. However, sunitinib has higher toxicity than sorafenib. Sorafenib might be more suitable than sunitinib among Asian patients, and sunitinib might be superior to sorafenib in European patients. Nevertheless, more large-scale, high-quality studies are required.

17.
Biosci Rep ; 39(7)2019 07 31.
Artigo em Inglês | MEDLINE | ID: mdl-31262968

RESUMO

Long non-coding RNAs (lncRNAs) have been widely reported that involved in human cancers, including papillary thyroid carcinoma (PTC). The present study aims to investigate the biological role of LINC00982 in PTC. The mRNA expression of LINC00982 in human PTC tissues was detected using qPCR. Moreover, Kaplan-Meier method was performed to analyze the internal relevance between LINC00982 expression and overall survival (OS) rate of patients with PTC. In addition, gain- and loss-of-functions assays were performed to detect the effects of LINC00982 on the cell proliferation and migration in PTC cells. Furthermore, western blot assay was used to measure the alteration expression levels of apoptosis relative proteins and the relative protein involved phosphatidylinositol 3-kinase (PI3K)/AKT signaling pathway. Finally, a xenograft model was used to analyze the antitumor role of LINC00982 in vivo Here, we found that LINC00982 was decreased in human PTC tissues. Patients with decreased LINC00982 expression levels had a reduced OS (P=0.0019) compared with those with high LINC00982 expression levels. Overexpression of LINC00982 suppressed the proliferation and migration of BHT101 and B-CPAP cells and promoted cell apoptosis. Knockdown of LINC00982 promoted the proliferation and migration of BHT101 and B-CPAP cells and induced cell apoptosis. Moreover, in vivo assay showed that overexpression of LINC00982 could suppress the growth of PTC. Finally, LINC00982 could regulate the activity of PI3K/AKT signaling pathway in vitro and in vivo Taken together, our findings demonstrated that overexpression of LINC00982 could suppress cell proliferation and induce cell apoptosis by regulating PI3K/AKT signaling pathway in PTC.


Assuntos
Apoptose/genética , Proliferação de Células/genética , RNA Longo não Codificante/genética , Câncer Papilífero da Tireoide/genética , Animais , Linhagem Celular Tumoral , Movimento Celular/genética , Intervalo Livre de Doença , Feminino , Regulação Neoplásica da Expressão Gênica/genética , Xenoenxertos , Humanos , Masculino , Camundongos , Pessoa de Meia-Idade , Proteína Oncogênica v-akt/genética , Fosfatidilinositol 3-Quinases/genética , Transdução de Sinais/genética , Câncer Papilífero da Tireoide/epidemiologia , Câncer Papilífero da Tireoide/patologia
19.
BMC Cancer ; 19(1): 489, 2019 May 23.
Artigo em Inglês | MEDLINE | ID: mdl-31122210

RESUMO

BACKGROUND: Sunitinib and pazopanib are extensively used as first-line treatment of metastatic renal cell carcinoma (mRCC). We performed this meta-analysis to assess the anti-tumor effectiveness, toxicity, and total costs of the two drugs among patients with mRCC/advanced RCC (aRCC). MATERIALS AND METHODS: PubMed, ScienceDirect, Scopus, Web of Science, Ovid MEDLINE, the Cochrane Library, Embase, and Google Scholar were searched to obtain eligible articles. The endpoints included progression-free survival (PFS), overall survival (OS), adverse effects (AEs), and per-patient-per-month (PPPM) costs. RESULTS: We included 14 medium- to high-quality studies. Both drugs were valid for mRCC/aRCC, with equivalent PFS (hazard ratio (HR) =1.06, 95% confidence interval [CI]: 0.98-1.15, P = 0.13), OS (HR = 0.92, 95% CI: 0.79-1.07, P = 0.29), objective response rate (ORR, risk ratio (RR) =1.03, 95% CI: 0.93-1.13, p = 0.58), and disease control rate (DCR, RR = 1.03, 95% CI: 0.94-1.22, P = 0.54). Sunitinib had more dosage reductions and higher PPPM (weighted mean difference = - 1.50 thousand US dollars, 95% CI: - 2.27 to - 0.72, P = 0.0002). Furthermore, more incidences of severe fatigue, thrombocytopenia, and neutropenia were recorded for sunitinib, but pazopanib had more liver toxicity. In subgroup analysis, studies from the US reported longer OS (HR = 0.86, 95% CI: 0.77-0.95, P = 0.004) and higher ORR (RR = 1.24, 95% CI: 1.03-1.51, P = 0.03). CONCLUSIONS: Pazopanib provides equivalent anti-tumor effectiveness and lower PPPM as compared with sunitinib for mRCC/aRCC. Great care should be given to pazopanib-treated patients with abnormal liver function. Nevertheless, more large-scale, high-quality studies are required.


Assuntos
Antineoplásicos/efeitos adversos , Antineoplásicos/uso terapêutico , Carcinoma de Células Renais/tratamento farmacológico , Neoplasias Renais/tratamento farmacológico , Pirimidinas/efeitos adversos , Pirimidinas/uso terapêutico , Sulfonamidas/efeitos adversos , Sulfonamidas/uso terapêutico , Sunitinibe/efeitos adversos , Sunitinibe/uso terapêutico , Idoso , Antineoplásicos/economia , Fadiga/etiologia , Custos de Cuidados de Saúde , Humanos , Indazóis , Fígado/efeitos dos fármacos , Pessoa de Meia-Idade , Neutropenia/etiologia , Pirimidinas/economia , Estudos Retrospectivos , Sulfonamidas/economia , Sunitinibe/economia , Trombocitopenia/etiologia , Resultado do Tratamento
20.
J Sex Med ; 16(7): 1005-1017, 2019 07.
Artigo em Inglês | MEDLINE | ID: mdl-31104857

RESUMO

INTRODUCTION: Previous studies demonstrating that erectile dysfunction (ED) predicts the risk of further cardiovascular events (CV) events are insufficient to make recommendations for cardiologists, diabetologists, urologists, and more, and the association between CV events and ED degree is unclear. AIM: To assess whether ED was a risk factor for CV events in a comprehensive literature review and meta-analysis. METHODS: PubMed, EMBASE, the Cochrane Library, Medline, and the Web of Science were searched for eligible studies. The protocol for this meta-analysis is available from PROSPERO (CRD42018086138). MAIN OUTCOME MEASURES: The main outcomes included cardiovascular disease (CVD), coronary heart disease (CHD), stroke, and all-cause mortality. Subgroup and sensitivity analyses were conducted to detect potential bias. RESULTS: 25 eligible studies involving 154,794 individuals were included in our meta-analysis. Compared with those of men without ED, the CVD risk of ED patients was significantly increased by 43% (relative risk [RR] =1.43; P < .001), CHD was increased by 59% (RR = 1.59; P < .001), stroke was increased by 34% (RR = 1.34; P < .001), and all-cause mortality was increased by 33% (RR = 1.33; P < .001). Older individuals with ED (≥55 years), those with ED of a shorter duration (<7 years), and those with higher rates of diabetes (≥20%) and smoking (≥40%) were more prone to develop CVD. Additionally, severe ED was proven to predict higher CVD and all-cause mortality risk. The standardized model proposed here can be properly applied for screening early CV events. CLINICAL IMPLICATIONS: The evidence prompts the diligent observation of at-risk men and reinforces the importance of early treatment to prevent CV events. STRENGTHS & LIMITATIONS: Larger sample sizes from recent prospective cohort studies were included to provide more up-to-date, reliable, and comprehensive results. Moreover, the results were robust regarding consistency across sensitivity and subgroup analyses and remained consistent; even pre-excluded retrospective or cross-sectional studies were included. We constructed a standardized model that addresses the study's innovations and implications for the first time. However, not all included studies were randomized controlled trials, which might downgrade this evidence. CONCLUSIONS: Risk of total CVD, CHD, stroke, and all-cause mortality was significantly increased in populations with ED, and severe ED is of particular concern. The evidence suggests the need for diligent observation of at-risk men and reinforces the importance of early treatment to prevent CV events. Zhao B, Hong Z, Wei Y, et al. Erectile Dysfunction Predicts Cardiovascular Events as an Independent Risk Factor: A Systematic Review and Meta-Analysis. J Sex Med 2019;16:1005-1017.


Assuntos
Doenças Cardiovasculares/epidemiologia , Disfunção Erétil/fisiopatologia , Doença das Coronárias/epidemiologia , Diabetes Mellitus/epidemiologia , Humanos , Masculino , Fatores de Risco , Acidente Vascular Cerebral/epidemiologia
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