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1.
Heliyon ; 10(10): e31192, 2024 May 30.
Artigo em Inglês | MEDLINE | ID: mdl-38813236

RESUMO

Background: This study aimed to explore the expression level and transcriptional regulation mechanism of Extra Spindle Pole Bodies Like 1 (ESPL1) in bladder cancer (BC). Methods: A multicentre database of samples (n = 1391) was assayed for ESPL1 mRNA expression in BC and validated at the protein level by immunohistochemical (IHC) staining of in-house samples (n = 202). Single-cell sequencing (scRNA-seq) analysis and enrichment analysis explored ESPL1 distribution and their accompanying molecular mechanisms. ATAC-seq, ChIP-seq and Hi-C data from multiple platforms were used to investigate ESPL1 upstream transcription factors (TFs) and potential epigenetic regulatory mechanisms. Immune-related analysis, drug sensitivity and molecular docking of ESPL1 were also calculated. Furthermore, upstream microRNAs and the binding sites of ESPL1 were predicted. The expression level and early screening efficacy of miR-299-5p in blood (n = 6625) and tissues (n = 537) were examined. Results: ESPL1 was significantly overexpressed at the mRNA level (p < 0.05, SMD = 0.75; 95 % CI = 0.09, 1.40), and IHC staining of in-house samples verified this finding (p < 0.0001). ESPL1 was predominantly distributed in BC epithelial cells. Coexpressed genes of ESPL1 were enriched in cell cycle-related signalling pathways, and ESPL1 might be involved in the communication between epithelial and residual cells in the Hippo, ErbB, PI3K-Akt and Ras signalling pathways. Three TFs (H2AZ, IRF5 and HIF1A) were detected upstream of ESPL1 and presence of promoter-super enhancer and promoter-typical enhancer loops. ESPL1 expression was correlated with various immune cell infiltration levels. ESPL1 expression might promote BC growth and affect the sensitivity and therapeutic efficacy of paclitaxel and gemcitabine in BC patients. As an upstream regulator of ESPL1, miR-299-5p expression was downregulated in both the blood and tissues, possessing great potential for early screening. Conclusions: ESPL1 expression was upregulated in BC and was mainly distributed in epithelial cells. Elevated ESPL1 expression was associated with TFs at the upstream transcription start site (TSS) and distant chromatin loops of regulatory elements. ESPL1 might be an immune-related predictive and diagnostic marker for BC, and the overexpression of ESPL1 played a cancer-promoting role and affected BC patients' sensitivity to drug therapy. miR-299-5p was downregulated in BC blood and tissues and was also expected to be a novel marker for early screening.

2.
Zhen Ci Yan Jiu ; 42(4): 342-5, 2017 Aug 25.
Artigo em Chinês | MEDLINE | ID: mdl-29072017

RESUMO

OBJECTIVE: To observe the therapeutic effect of acupuncture at thirteen evil acupoints in patients with hepatic encephalopathy, and to explore its possible mechanism. METHODS: Patients with hepatic encephalopathy were randomly divided into acupuncture group (n=38) and western medicine group (n=36). Patients in the western medicine group were treated by intravenous injection of aspartate ornithine and branched chain amino acids, and those in the acupuncture group were treated with acupuncture at thirteen evil acupoints on the basis of the western medicine. All the patients were treated for 1 week. The liver function and blood ammonia were measured by automatic biochemical analyzer. The changes of plasma ß-endorphin were measured by enzyme-linked immunosorbent assay (ELISA). RESULTS: Following the treatment, of the 36 and 38 hepatic encep-halopathy patients in the western medicine and acupuncture groups, 12 and 18 experienced a marked improvement in their symptoms, 13 and 16 were effective, and 11 and 4 invalid, with the effective rates being 69.4% and 89.5%, respectively. Compared with pre-treatment, the levels of serum aspartate aminotransferase, alanine aminotransferase, total bilirubin, and plasma ß-endo-rphin and blood ammonia were significantly lower in both western medicine and acupuncture groups(P<0.01), and the therapeutic effects of the acupuncture group were obviously superior to those of the western medicine group in the above mentioned indexes (P<0.05, P<0.01). CONCLUSIONS: Treatment of acupuncture at thirteen evil acupoints combined with western medicine can enhance the curative effect of hepatic encephalopathy, improve patients' liver function and decrease the levels of plasma ammonia and ß-endorphin.


Assuntos
Terapia por Acupuntura , Amônia/sangue , Encefalopatia Hepática/terapia , beta-Endorfina/sangue , Pontos de Acupuntura , Humanos
3.
Oncol Lett ; 9(1): 67-74, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-25435935

RESUMO

In this study, the maximum tolerated dose (MTD) of lobaplatin (LBP) when it was combined with docetaxel (TXT) for the treatment of solid tumours that had progressed following chemotherapy was determined, and toxicities to this regimen were evaluated. A modified Fibonacci method was used for the dose escalation of LBP. The patients received TXT (at a fixed dose of 60 mg/m2) on day one (d1) and LBP (at an initial tested dose of 30 mg/m2) on day two (d2) of a treatment cycle that was repeated every 21 days. Each dose group consisted of at least three cases. In the absence of dose-limiting toxicity (DLT), we proceeded to the next dose group, with a dose increment of 5 mg/m2 between groups, until DLT occurred. The dose immediately below the dose that produced DLT was regarded as the MTD. The 17 patients examined in this study completed a total of 58 cycles of chemotherapy, and a total of three dose-escalation groups (30 mg/m2 LBP, 35 mg/m2 LBP, and 40 mg/m2 LBP) were established. The main adverse event that was observed was myelosuppression. DLT occurred in four patients, including three patients in the 40 mg/m2 LBP group and one patient in the 35 mg/m2 LBP group. In total, three out of the four patients in the 40 mg/m2 LBP group exhibited DLT. We determined that the treatment administered to the 35 mg/m2 LBP group represented the MTD. Thus, our phase I trial revealed that the MTD for the tested LBP combination regimen was 35 mg/m2 LBP and 60 mg/m2 TXT. This regimen resulted in mild adverse reactions and favourable patient tolerance. Therefore, we recommend the use of these dosages in phase II clinical trials.

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