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BACKGROUND: Kidneys obtained from deceased donors increase the incidence of delayed graft function (DGF) after renal transplantation. Here we investigated the influence of the risk factors of donors with DGF, and developed a donor risk scoring system for DGF prediction. METHODS: This retrospective study was conducted in 1807 deceased kidney donors and 3599 recipients who received donor kidneys via transplants in 29 centers in China. We quantified DGF associations with donor clinical characteristics. A donor risk scoring system was developed and validated using an independent sample set. RESULTS: The incidence of DGF from donors was 19.0%. Six of the donor characteristics analyzed, i.e., age, cause of death, history of hypertension, terminal serum creatinine, persistence of hypotension, and cardiopulmonary resuscitation (CPR) time were risk factors for DGF. A 49-point scoring system of donor risk was established for DGF prediction and exhibited a superior degree of discrimination. External validation of DGF prediction revealed area under the receiver-operating characteristic (AUC) curves of 0.7552. CONCLUSIONS: Our study determined the deceased donor risk factors related to DGF after renal transplantation pertinent to the Chinese cohort. The scoring system developed here had superior diagnostic significance and consistency and can be used by clinicians to make evidence-based decisions on the quality of kidneys from deceased donors and guide renal transplantation therapy.
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Função Retardada do Enxerto/etiologia , Transplante de Rim/efeitos adversos , Doadores de Tecidos/estatística & dados numéricos , Adulto , Morte Encefálica , China , Isquemia Fria/efeitos adversos , Creatinina/análise , Função Retardada do Enxerto/terapia , Feminino , Sobrevivência de Enxerto , Humanos , Incidência , Rim/fisiopatologia , Masculino , Pessoa de Meia-Idade , Curva ROC , Diálise Renal/estatística & dados numéricos , Estudos Retrospectivos , Fatores de Risco , Transplante Homólogo , Transplantes/fisiopatologiaRESUMO
BACKGROUND: The number and survival rate of simultaneous liver-kidney transplant (SLKT) recipients have increased dramatically since 2002. However, the long-term effectiveness of SLKT in patients with hepatitis B is unknown. MATERIAL/METHODS: Forty-six patients who visited the Organ Transplant Center of the Shanghai First People's Hospital between January 2001 and May 2005 had hepatitis B virus infection and renal failure (any degree), and underwent organ transplantation: 21 patients underwent SLKT and 25 patients underwent liver transplant (LT) alone. RESULTS: The 1-, 3-, and 5-year survival rates of SLKT recipients were 90.5%, 81.0%, and 81.0%, respectively. Incidence of acute hepatic allograft rejection between SLKT recipients and LT recipients (33% vs. 16%) did not reach significance (P=0.170). Despite higher infection rate, more prevalent hepatitis B relapse, and longer stay in the intensive care unit, SLKT recipients experienced significantly higher 1-year survival rate (90.5%) compared with LT recipients (60%, P=0.019). Multivariate regression analysis revealed that postoperative renal failure (odds ratio (OR)=48, P=0.003) and Risk/Injury/Failure/Loss/End-stage (RIFLE) stage (OR=8, P=0.012) were independent risk factors for postoperative death after LT. CONCLUSIONS: SLKT in patients with hepatitis B had higher early-stage infection rate, but had a higher long-term survival rate compared with the LT group. Although the incidence of postoperative hepatitis B relapse in SLKT recipients was higher, timely and reasonable treatment can ensure long-term survival of patients. Worsening RIFLE stage of recipients can predict high mortality when only given LT. SLKT might be a better choice for RIFLE stage 2 or 3 patients than LT alone.
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Hepatite B/terapia , Transplante de Rim , Transplante de Fígado , Adulto , Causas de Morte , Feminino , Humanos , Transplante de Rim/efeitos adversos , Transplante de Rim/mortalidade , Transplante de Fígado/efeitos adversos , Transplante de Fígado/mortalidade , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Cuidados Pós-Operatórios , Complicações Pós-Operatórias/etiologia , Cuidados Pré-Operatórios , Prognóstico , Recidiva , Fatores de Risco , Análise de Sobrevida , Fatores de Tempo , Resultado do TratamentoRESUMO
PURPOSE: Interleukin 18 (IL-18) is a potent proinflammatory cytokine thought to down-regulate cytochrome P450 (CYP) enzyme activities. This study aimed to assess the potential influence of two functional single nucleotide polymorphisms (SNPs) in the IL-18 promoter region on the tacrolimus pharmacokinetics in Chinese renal transplant patients. METHODS: We enrolled 96 renal allograft recipients receiving tacrolimus-based immunosuppressive regiments. Two functional SNPs in the IL-18 gene promoter region at the positions -137G/C (rs187283) and -607A/C (rs1946518) and one SNP (rs776746) of CYP3A5 were genotyped using a Mass ARRAY platform. Tacrolimus daily doses (mg/day) and trough tacrolimus concentration (ng/ml) were continuously recorded for 1 month after transplantation. RESULTS: The tacrolimus C/D ratio was significantly associated with the IL-18 rs1946518 gene polymorphism in the first month after transplantation (P = 0.0225). We studied the influence of its polymorphism on tacrolimus C/D ratios in subjects with different CYP3A5 genotype backgrounds, and among patients with CYP3A5 expressers, the difference among the three genotypes was even more striking (P < 0.001). We did not find significant differences in tacrolimus C/D ratios between the IL-18 rs187238 genotypes, either nominally or according to the CYP3A5 genotype. In a simple linear regression model, age, hemoglobin (Hb), CYP3A5 gene polymorphisms, and IL-18 A-607C gene polymorphisms were associated with log-transformed tacrolimus C/D ratios (P < 0.05). In the final multiple linear regression model, CYP3A5 polymorphisms were the most important variant, accounting for 19.5 % of total variation involved in tacrolimus pharmacokinetics. CONCLUSION: Our findings suggest that a combined analysis of CYP3A5 and IL-18 promoter polymorphisms may help clinicians develop individualized tacrolimus treatment, which is based on determining CYP3A5 genotype.
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Citocromo P-450 CYP3A/genética , Imunossupressores/farmacocinética , Interleucina-18/genética , Transplante de Rim , Tacrolimo/farmacocinética , Adulto , Povo Asiático/genética , Feminino , Genótipo , Humanos , Imunossupressores/sangue , Masculino , Pessoa de Meia-Idade , Polimorfismo de Nucleotídeo Único , Regiões Promotoras Genéticas , Tacrolimo/sangueRESUMO
Glutathione peroxidase (GPX) is an endogenous antioxidant enzyme counteracting oxidative stress. Accumulating evidence has demonstrated that the GPX1 rs1050450 C > T polymorphism may modulate cancer risk, but the association of GPX1 rs1050450 polymorphism with bladder cancer (BC) and prostate cancer (PCa) is still inconclusive. This meta-analysis was designed to determine the exact association of GPX1 rs1050450 C > T polymorphism with the risk of bladder cancer and prostate cancer. Odds ratios (ORs) and 95% confidence intervals (CI) were calculated to estimate the association strength. Databases of PubMed, EMBASE, and China National Knowledge Infrastructure were searched to retrieve eligible studies. In total, ten eligible studies with 6,194 participants were included. By pooling all eligible studies, we found that carriers of the variant T allele were associated with a significantly increased risk of urinary tract cancer (T vs. C: OR = 1.459 and 95% CI, 1.086-1.962; CT/TT vs. CC: OR = 1.411 and 95 % CI, 1.053-1.891). In stratified analysis, we observed that the rs1050450 C > T polymorphism was significantly associated with an increased risk of BC (T vs. C: OR = 2.111 and 95% CI, 1.020-4.368; CT/TT vs. CC: OR = 1.876 and 95% CI, 1.011-3.480), while the association was not significant for PCa. Egger's test and Begg's test revealed no publication bias. The present meta-analysis provides evidence that the GPX1 rs1050450 C > T polymorphism leads to an increased risk of BC but not the risk of PCa.
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Glutationa Peroxidase/genética , Polimorfismo de Nucleotídeo Único , Neoplasias da Próstata/genética , Neoplasias da Bexiga Urinária/genética , Alelos , Estudos de Casos e Controles , Estudos de Associação Genética , Predisposição Genética para Doença , Genótipo , Humanos , Masculino , Razão de Chances , Viés de Publicação , Risco , Glutationa Peroxidase GPX1RESUMO
The hepatic growth factor hepatopoietin Cn (HPPCn) prevents liver injury induced by carbon tetrachloride in rats. Sphingosine 1-phosphate (S1P) is a bioactive sphingolipid produced by sphingosine kinase (SphK). S1P and S1P receptors (S1PRs) are involved in liver fibrogenesis and oxidative injury. This work sought to understand the mechanism by which SphK/S1P/S1PRs are involved in the protective effects of HPPCn on ethanol-induced liver injury and fibrosis. Transgenic mice with liver-specific overexpression of HPPCn (HPPCn(liver) (+/+)) were generated. Two ethanol feeding protocols were used to assess the protective effect of HPPCn on acute and chronic liver injury in mice. Specific inhibitors of S1PR1, S1PR2 and S1PR3 and siRNA were used to examine the roles of S1PRs in hepatic stellate cell (HSC) activation and hepatocyte apoptosis. Increased HPPCn expression in transgenic mice attenuated fibrosis induced by ethanol and carbon tetrachloride (CCl4). Treatment with recombinant human HPPCn prevented human hepatocyte apoptosis and HSC activation. JTE-013 or S1PR2-siRNA attenuated the effect of HPPCn on HSC activation induced by tumour necrosis factor-α (TNF-α). Consistent with the effect of N,N-dimethylsphingosine (DMS), suramin or S1PR3-siRNA treatment blocked HPPCn-induced Erk1/2 phosphorylation in human hepatocytes. This study demonstrated that HPPCn attenuated oxidative injury and fibrosis induced by ethanol feeding and that the SphK1/S1P/S1PRs signalling pathway contributes to the protective effect of HPPCn on hepatocyte apoptosis and HSC activation.
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Etanol , Fator de Crescimento de Hepatócito/metabolismo , Cirrose Hepática Alcoólica/prevenção & controle , Fígado/enzimologia , Proteínas Nucleares/metabolismo , Fosfotransferases (Aceptor do Grupo Álcool)/metabolismo , Receptores de Lisoesfingolipídeo/metabolismo , Animais , Apoptose , Células Cultivadas , Modelos Animais de Doenças , Regulação da Expressão Gênica , Células Estreladas do Fígado/enzimologia , Células Estreladas do Fígado/patologia , Fator de Crescimento de Hepatócito/genética , Humanos , Fígado/efeitos dos fármacos , Fígado/patologia , Cirrose Hepática Alcoólica/enzimologia , Cirrose Hepática Alcoólica/etiologia , Cirrose Hepática Alcoólica/genética , Cirrose Hepática Alcoólica/patologia , Lisofosfolipídeos/metabolismo , Camundongos , Camundongos Transgênicos , Proteína Quinase 1 Ativada por Mitógeno/metabolismo , Proteína Quinase 3 Ativada por Mitógeno/metabolismo , Proteínas Nucleares/genética , Estresse Oxidativo , Fosforilação , Fosfotransferases (Aceptor do Grupo Álcool)/genética , Interferência de RNA , RNA Mensageiro/metabolismo , Receptores de Lisoesfingolipídeo/antagonistas & inibidores , Receptores de Lisoesfingolipídeo/genética , Transdução de Sinais , Esfingosina/análogos & derivados , Esfingosina/metabolismo , Fatores de Tempo , Transfecção , Fator de Necrose Tumoral alfa/metabolismoRESUMO
Hepatic hemangioma patients with Kasabach-Merritt syndrome have reportedly been cured by liver transplantation. However, liver transplantation as a potential cure for a stable patient without Kasabach-Merritt syndrome remains debatable. We report the case of a 27-year-old female patient with a giant hepatic hemangioma. The hemangioma measured 50×40×25 cm in size and weighed 15 kg, which is the largest and heaviest hemangioma reported in the literature. The patient showed jaundice, ascites, anemia, and appetite loss; but no disseminated intravascular coagulation was observed through laboratory findings. We successfully operated using a right lobe graft without the middle hepatic vein from a 55-year-old donor. At the long-term follow-up, the patient experienced two acute rejections, which were confirmed by biopsy. However, the patient still survives with good graft function after 50 months.
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Hemangioma/cirurgia , Hepatectomia , Veias Hepáticas , Hepatopatias/cirurgia , Transplante de Fígado , Adulto , Feminino , Rejeição de Enxerto/etiologia , Rejeição de Enxerto/prevenção & controle , Hemangioma/complicações , Hemangioma/patologia , Humanos , Hepatopatias/complicações , Hepatopatias/patologia , Doadores Vivos , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/prevenção & controle , Prognóstico , Tomografia Computadorizada por Raios XRESUMO
BACKGROUND: Prostate cancer (PC) is the second leading cause of cancer-related death among men worldwide. Downregulation of miR-485-3p has been revealed to participate in the tumorigenesis and progression of many types of cancer. However, the clinical and biological role of miR-485-3p in PC remains largely unknown. METHODS: The expression of miR-485-3p was analyzed in the published databases and detected in our clinical samples and cell lines by RT-qPCR assay. CCK8, transwell invasion and migration, and colony formation assays were performed to investigate the biological function of miR-485-3p. Bioinformatical analysis, RIP, western blotting and luciferase reporter assays were carried out to explore the downstream mechanism of miR-485-3p. RESULTS: The level of miR-485-3p was downregulated in PC tissues, particularly in primary PC tissues with metastasis relative to normal prostate tissues. miR-485-3p downregulation was positively correlated with poor disease-free and overall survival in patients with PC. Functionally, miR-485-3p overexpression dramatically suppressed the proliferation, migration and invasion ability of PC cells in vitro. Mechanistically, miR-485-3p overexpression suppressed the activity of TGF-ß signaling by targeting TGFBR2 to play tumor-suppressive roles in PC progression. CONCLUSION: Our study reports the miR-485-3p/TGFBR2/ TGF-ß signaling axis in tumor development of PC, suggesting miR-485-3p may be a potential target to develop therapeutic strategies against PC.
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MicroRNAs , Neoplasias da Próstata , Linhagem Celular Tumoral , Movimento Celular/genética , Proliferação de Células/genética , Regulação para Baixo , Regulação Neoplásica da Expressão Gênica , Humanos , Masculino , MicroRNAs/genética , MicroRNAs/metabolismo , Neoplasias da Próstata/patologia , Receptor do Fator de Crescimento Transformador beta Tipo II/genética , Receptor do Fator de Crescimento Transformador beta Tipo II/metabolismo , Fator de Crescimento Transformador beta/genética , Fator de Crescimento Transformador beta/metabolismoRESUMO
The function of lncRNA CRNDE and its role in prostate cancer (PC) remains unclear. The aim of this study was to determine the expression level of lncRNA CRNDE in PC tissues and to elucidate its role in PC. The expression levels of lncRNA CRNDE were measured by quantitative reverse transcription polymerase chain reaction. The role of lncRNA CRNDE in PC cells was studied using loss-of-function assays in vitro. Cell proliferation, migration, invasion, and apoptosis were assessed via Cell Counting Kit-8, colony formation, flow cytometry, wound healing, and transwell chamber assays. A luciferase reporter assay was used to characterize the interaction between lncRNA CRNDE and miR-146a-5p. In PC tissues, the expression level of lncRNA CRNDE was upregulated. Moreover, knockdown of lncRNA CRNDE suppressed PC cell proliferation and migration and induced apoptosis in vitro. miR-146a-5p was verified as a direct target of lncRNA CRNDE. Moreover, the inhibition of miR-146a-5p partially counteracted the effects of lncRNA CRNDE on PC cell proliferation, migration, and invasion. In conclusion, lncRNA CRNDE may serve as a cancer promoter in PC by targeting miR-146a-5p. Therefore, lncRNA CRNDE could be a promising target for the clinical treatment of PC.
Assuntos
Movimento Celular/genética , MicroRNAs/metabolismo , Neoplasias da Próstata/genética , Neoplasias da Próstata/patologia , RNA Longo não Codificante/metabolismo , Apoptose/genética , Sequência de Bases , Linhagem Celular Tumoral , Proliferação de Células/genética , Regulação para Baixo/genética , Regulação Neoplásica da Expressão Gênica , Técnicas de Silenciamento de Genes , Humanos , Masculino , Metaloproteinase 2 da Matriz/metabolismo , Metaloproteinase 9 da Matriz/metabolismo , MicroRNAs/genética , Invasividade Neoplásica , RNA Longo não Codificante/genética , RNA Interferente Pequeno/metabolismoRESUMO
PURPOSE: The aim of this study was to evaluate the effect of lycopene on hypoxia-induced testicular injury in rat model and explore the underlying mechanism. METHODS: Six-week-old male Wistar rats (n = 36) were randomly divided into three groups (n = 12/group): a normal group (NG, sham control), a varicocele group (VG), and a varicocele treated by lycopene group (VLG). Bilateral renal veins constriction was performed on rats in VG and VLG. Simultaneously, rats in VLG were treated to lycopene by intragastric administration. Four weeks later, sperm was collected for sperm analysis. Testes and epididymides were harvested for morphological change analysis, histologic analysis, ELISA, qRT-PCR, and western blot. RESULTS: Our observations were that lycopene improved the hypoxia-induced testicular injury in vivo. Prokineticin 2(PROK2) and prokineticin receptor 2 (PROKR2) were overexpressed in VG (P < 0.01), and lycopene inhibited the PROK2 expression (P < 0.01). Proliferating cell nuclear antigen (PCNA) and sex hormones were increased by lycopene in VLG (P < 0.05). Lycopene restored the quality and activity of sperm by blocking PROK2 expression (P < 0.05). The expression of VEGF was increased, as HIF-1/NF-κB pathway was upregulated in VLG (P < 0.05). Meanwhile, expression of pAKT/AKT in VLG was higher than that in VG (P < 0.05). In addition, lycopene reduced levels of interleukin-1ß (IL-1ß) and interleukin-2 (IL-2) in VLG (P < 0.05), compared to NG. CONCLUSIONS: Lycopene improved the hypoxia-induced testicular injury by inhibiting the expression of PROK2 and decreasing levels of IL-1ß and IL-2, which might show us a novel and promising treatment for varicocele testicular injury.
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Circulating bladder tumor cells provide significant information for cancer diagnosis, tumor staging and personalized cancer therapy. Previous studies have reported various methods for capturing circulating tumor cells; however, capturing circulating tumor cells remain a challenge. Here, we present a microfluidic chip with high specificity and capture yields that we refer to as a bladder cancer diagnosis chip. We show that this chip can be used to effectively capture circulating bladder cancer cells based on antibody-BCMab1, a monoclonal antibody that binds to aberrantly glycosylated integrin a3b1. This capture platform is composed of a polydimethylsiloxane (PDMS) chip, whose microchannels are functionalized with biotinylated BCMab1. To change the direction of flow to increase cell-substrate contact, we also introduced a herringbone or chevron channel pattern into the chip. Using this system, we were able to capture bladder cancer cells with high specificity. The capture rates of the bladder cancer diagnosis chip were evaluated at different flow rates and cell concentrations. We found that 90% of the cancer cells were successfully captured at flow rates of 10 µL/min and at various cell concentrations. This highly specific microfluidic chip is a novel tool for bladder cancer diagnosis and offers an opportunity for personalized treatment.
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Anticorpos Monoclonais/imunologia , Separação Celular/instrumentação , Dispositivos Lab-On-A-Chip , Células Neoplásicas Circulantes/patologia , Neoplasias da Bexiga Urinária/sangue , Desenho de Equipamento , Humanos , Medicina de Precisão , Neoplasias da Bexiga Urinária/imunologiaRESUMO
Deep Candida albicans infection is one of the major causes of death in immunosuppressed hosts. Remodeling macrophages to phenotype M1 can decrease fungus burden and facilitate combating C. albicans under an immunosuppressive state. In this study, a nanotrinity was exploited to direct fungicidal macrophage polarization by leveraging the regulation pathways in macrophage redifferentiation. Conventional chemotherapeutic imatinib, which can abrogate M2 macrophage polarization via "shutting off" the STAT6 phosphorylation pathway, was encapsulated in biodegradable polymeric nanoparticles. In house-customized dual functional mannosylated chitosan oligosaccharides were then coated on the surface of the imatinib-laden nanoparticles, and thus, a mannosylated nanotrinity was achieved with ternary functions for macrophage remodeling: (i) imatinib-blocked STAT6 phosphorylation pathway for decreasing M2 macrophage population; (ii) chitosan oligosaccharides-mediated TLR-4 pathway activation that could promote macrophage redifferentiation to M1 phenotype; (iii) mannose motif-enhanced macrophage targeting. After physiochemical characterization, regulatory effects of the mannosylated nanotrinity on macrophages and the anti-C. albicans efficacy were evaluated at the cellular level and animal level, respectively. The results demonstrated that our mannosylated nanotrinity could efficiently induce macrophage polarization toward the M1 phenotype, decrease M2 phenotype production, and markedly lessen fungus burden and increased the median survival time of mice infected with C. albicans. Therefore, the mannosylated nanotrinity developed in this study could significantly induce macrophage remodeling in situ by the two-pronged process, "turning on" M1 phenotype polarization meanwhile "shutting off" M2 phenotype polarization, and thus allowed to eradicate C. albicans infection.
Assuntos
Candida albicans , Macrófagos , Animais , Ativação de Macrófagos , Camundongos , FenótipoRESUMO
An adenocarcinoma of the appendix invading the urinary bladder, which is difficult to be diagnosed before the operation, is an extremely rare disease. Only a few cases have been reported. Here we reported a case of patient diagnosed with the mucinous adenocarcinoma of the appendix invading the urinary bladder. The case reported in this study was a 54-years old man who was admitted due to a 6-month history of intermittent episodes of irritative voiding symptoms of the bladder, and weight loss. The patient did not have any gastrointestinal symptoms. The physical examination, laboratory examination, cytology of the urine, computed tomography and cystoscopy were inconclusive. The partial cystectomy, subsequent exploratory laparotomy and intraoperative frozen analysis revealed the appendiceal mucinous adenocarcinoma with a fistula to the urinary bladder. The appendectomy and the right hemicolectomy with a ileocolic anastomosis, the lymphadenectomy and the partial cystectomy limited to the anterior wall was performed. Six months after operation, the patient was in a good health with no obvious discomfort, no recurrence or distant metastases. The recommended treatment for the adenocarcinoma of the appendix invading the bladder with a fistula formation is as follows: appendectomy, right hemicolectomy with ileocolic anastomosis, lymphadenectomy, partial cystectomy and intraperitoneal hyperthermic chemoperfusion.
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Chronic T cell mediated rejection (TCMR), which is characterized by infiltration of the interstitium by T cells and macrophages, still remains a major barrier to the long-term survival of kidney transplantation. Our recent report indicated that thalidomide can attenuate graft arteriosclerosis in an aortic transplant model. In this study, we investigated the effect of thalidomide on chronic TCMR in a rat model of kidney transplantation. Fischer or Lewis kidney allografts were transplanted into Lewis recipient rats. After kidney transplantation, recipient rats were divided into 3 groups: the isograft (Iso) group, allograft (Allo) group, and thalidomide (Tha) group. Rats were sacrificed at 8â¯weeks after kidney transplantation, and blood and kidney samples were collected. Serum concentrations of creatinine (SCr),interleukin (IL)-2, IL-6, IL-17, and TNF-α in recipients were determined, and flow cytometry was used to detect the percentages of CD4+CD25+, CD4+ Foxp3+and CD4+Th17+ cell subsets in the peripheral blood. Grafts were procured for histopathological examination, and the expressions of α-SMA, transforming growth-ß1 (TGF-ß1), and VEGF in kidney grafts were investigated using Western blot. Thalidomide treatment significantly ameliorated chronic rejection, reduced renal allograft tissue damage, and decreased serum creatinine levels. Attenuation of chronic TCMR was due to the prohibited production of inflammatory cytokines, altered distribution of the CD4+ CD25+ FoxP3+ regulatory T (Treg) and CD4+ Th17+ cells in the peripheral blood, and decreased expression of TGF-ß1, α-SMA, and VEGF in the kidney graft. These results demonstrated that thalidomide could effectively ameliorate chronic TCMR in a rat kidney transplant model.
Assuntos
Rejeição de Enxerto/tratamento farmacológico , Imunossupressores/uso terapêutico , Transplante de Rim , Rim/patologia , Linfócitos T Reguladores/imunologia , Células Th17/imunologia , Talidomida/uso terapêutico , Animais , Doença Crônica , Creatinina/sangue , Citocinas/metabolismo , Modelos Animais de Doenças , Humanos , Mediadores da Inflamação/metabolismo , Masculino , Ratos , Ratos Endogâmicos F344 , Ratos Endogâmicos Lew , Transplante HomólogoRESUMO
BACKGROUND: Bladder cancer (BC) is among the most frequently occurring cancer types in the urinary system. In recent years, the importance of lncRNAs in BC has been acknowledged. SLCO4A1-AS1 is an oncogene in colorectal cancer. However, the role of SLCO4A1-AS1 in BC remains unknown. MATERIALS AND METHODS: The expression levels of SLCO4A1-AS1 in BC tissues were analyzed by qRT-PCR. The effects of SLCO4A1-AS1 knockdown on proliferation were determined by CCK8 assay. Transwell assay was used to evaluate the role of SLCO4A1-AS1 on migration and invasion. Furthermore, xenograft assay was utilized to test the effect of SLCO4A1-AS1 on BC growth in vivo. RESULTS: SLCO4A1-AS1 expression was more upregulated in BC tissues than in adjacent normal tissues. Moreover, SLCO4A1-AS1 level was positively correlated with the advanced stage and metastasis in BC. The upregulation of SLCO4A1-AS1 indicates poor prognosis in BC patients. The knockdown of SLCO4A1-AS1 downregulated the proliferation, migration, and invasion of EJ and T24 cells in vitro. In addition, the loss of SLCO4A1-AS1 prevented BC growth in vivo. Mechanistic investigation showed that SLCO4A1-AS1 was the sponge for miR-335-5p, and miR-335-5p modulated OCT4 expression. CONCLUSION: High SLCO4A1-AS1 expression level was associated with the progression of BC, and SLCO4A1-AS1 promoted the malignant phenotypes of BC cells through the miR-335-5p/OCT4 axis.
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BACKGROUND: Post-transplantation diabetes mellitus (PTDM) is a serious metabolic complication after kidney transplantation. The aim of this study was to explore the association of clinical variables and five selected single nucleotide polymorphisms (SNPs) with PTDM in Chinese Han renal allograft recipients taking tacrolimus (TAC). METHODS: A total of 129 non-diabetic, primary, Chinese Han renal allograft recipients treated with TAC were enrolled. Five SNPs (CYP3A5 rs776741, rs776746, rs15524, CYP24A1 rs2296241, and PPARG rs1801282) were genotyped and analyzed. RESULTS: Among 129 recipients, 17 (13.2%) developed PTDM. Both univariate and multivariate analysis demonstrated that age over 50â¯years old and CYP24A1 rs2296241 A allele were independently correlated with the development of PTDM, while no significant differences was observed in TAC pharmacokinetics and CYP3A5, PPARG polymorphisms between two groups. CONCLUSIONS: Patients with advanced age and CYP24A1 rs2296241 A allele had an increased risk of PTDM after kidney transplantation.
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Diabetes Mellitus/genética , Genótipo , Rejeição de Enxerto/genética , Transplante de Rim , Complicações Pós-Operatórias/genética , Vitamina D3 24-Hidroxilase/genética , Adulto , Fatores Etários , Alelos , China , Citocromo P-450 CYP3A/genética , Diabetes Mellitus/tratamento farmacológico , Diabetes Mellitus/etiologia , Feminino , Estudos de Associação Genética , Rejeição de Enxerto/etiologia , Rejeição de Enxerto/prevenção & controle , Humanos , Imunossupressores/uso terapêutico , Masculino , Pessoa de Meia-Idade , PPAR gama/genética , Polimorfismo de Nucleotídeo Único , Complicações Pós-Operatórias/tratamento farmacológico , Risco , Tacrolimo/uso terapêutico , Transplante HomólogoRESUMO
Renal cell carcinoma (RCC) is one of the third most common types of urological cancer worldwide. Long noncoding RNA (lncRNA) ROR has been reported to be important in regulating the malignant activities of different types of cancer, however, the function of lncRNA ROR in RCC remains to be fully elucidated. In order to investigate the function of lncRNA ROR in RCC, reverse transcriptionquantitative polymerase chain reaction (RTqPCR) analysis was used to detect the expression of lncRNA ROR in renal cancer tissues and adjacent tissues. Cell proliferation and apoptosis were determined using Cell Counting Kit-8 and apoptosis assays. Western blot analysis was used to measure the expression levels of cMyc and p53 following the suppression of lncRNA ROR in RCC cell lines. According to the results of the RTqPCR analysis, lncRNA ROR was found to be expressed at high levels in RCC tissues and cell lines. Patients with RCC exhibiting high expression levels of lncRNA ROR had shorter survival rates, compared with those with low expression levels of lncRNA ROR. The knockdown of lncRNA ROR resulted in a decrease of cell proliferation and increase of apoptosis in vitro. The suppression of lncRNA ROR also induced an increase in the expression of p53 and a decrease in the expression of cMyc in vitro. Taken together, these results demonstrated that lncRNA ROR was expressed at high levels in RCC tissue and cell lines, and was associated with the proliferation ability of RCC cells. These findings indicate that lncRNA ROR may be a promising therapeutic target for treating RCC.
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Neoplasias Renais/genética , Neoplasias Renais/mortalidade , RNA Longo não Codificante/genética , Apoptose/genética , Ciclo Celular/genética , Linhagem Celular Tumoral , Movimento Celular/genética , Proliferação de Células , Feminino , Regulação Neoplásica da Expressão Gênica , Técnicas de Silenciamento de Genes , Humanos , Neoplasias Renais/patologia , Masculino , Estadiamento de Neoplasias , Prognóstico , RNA Longo não Codificante/metabolismo , Análise de Sobrevida , Carga TumoralRESUMO
The prognosis and survival rate of prostate cancer are very poor. Previous studies have shown that miR-556-5p have emerged as important regulators in cancer cell biological processes. The role of miR-556-5p in prostate cancer remains unclear. In this study, expression of miR-556-5p in prostate cancer cell lines and tissues was upregulated. Result of MTT assays, colony formation and anchorage-independent growth assays demonstrated that overexpression of miR-556-5p promoted prostate cancer cell growth. Additionally, PPP2R2A was identified as a direct target of miR-556-5p. Ectopic expression of miR-556-5p led to downregulation of PPP2R2A protein, which resulted in the downregulation of p27, upregulation of cyclin D1. Taken together, our data provide compelling evidence that miR-556-5p functions as an onco-miRNA and participates in prostate cancer carcinogenesis by suppressing PPP2R2A expression.
Assuntos
Proliferação de Células , MicroRNAs/genética , Neoplasias da Próstata/genética , Proteína Fosfatase 2/genética , Linhagem Celular Tumoral , Ciclina D1/genética , Ciclina D1/metabolismo , Inibidor de Quinase Dependente de Ciclina p27/genética , Inibidor de Quinase Dependente de Ciclina p27/metabolismo , Regulação Enzimológica da Expressão Gênica , Regulação Neoplásica da Expressão Gênica , Humanos , Masculino , MicroRNAs/metabolismo , Neoplasias da Próstata/enzimologia , Neoplasias da Próstata/patologia , Proteína Fosfatase 2/metabolismo , Interferência de RNA , Transdução de Sinais , Fatores de Tempo , TransfecçãoRESUMO
BACKGROUND: To explore a better balance between efficacy and complications, we respectively compared the clinical outcome of low-dose and high-dose rATG induction therapy with a control group in renal transplantations from March 2009 to March 2012. MATERIAL AND METHODS: 281 kidney transplant recipients were included in 3 groups. The low-dose group (n=39) received rATG 1 mg/kg on the first day and 0.5 mg/kg on the next consecutive 3 days post-transplantation. The high-dose group (n=30) received rATG 1 mg/kg for 6 days. The control group (n=212) received no induction therapy. All patients were treated with Prednisolone, Mycophenolate mofetil, cyclosporine A, or tacrolimus capsules. Acute rejection rates, renal function, CMV infection, patient survival, and the adverse effects of rATG were reviewed. RESULTS: The acute rejection rate was significantly lower in the rATG group compared with the control group (low-dose 17.9% vs. control 35.4%, P=0.03, and high-dose 16.7% vs. control 35.4%, P=0.038). There was no statistically significant difference in 3-year survival and graft survival rates among the groups. Renal function early recovery was similar in the rATG and the control group. The CMV infection rate in the high-dose rATG group was higher than the low-dose rATG and the control group (p=0.037 and p=0.002, respectively). rATG induction therapy was associated with thrombocytopenia in our series, especially in the high-dose rATG group. CONCLUSIONS: Low-dose rATG induction may be superior to high-dose rATG induction therapy in renal transplantation.