Publications by authors named "Dechuan Li"

Sm and Tb co-doped KY(CO) temperature sensing materials were prepared via the hydrothermal method. X-ray diffraction results confirmed the monoclinic phase in KY(CO):Sm,Tb samples. In this KY(CO) host, Tb transfers energy to Sm through cross-relaxation.

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This study investigated the role of C-X-C motif chemokine receptor 6 (CXCR6) in colorectal cancer (CRC). It was found that lower CXCR6 expression is correlates with poorer prognostic outcomes, suggesting that CXCR6 may inhibit tumor progression and thus improve patient outcomes. Silencing CXCR6 in CRC cell lines SW620 and CT-26 resulted in significantly enhanced migration and invasion, as demonstrated by wound healing and transwell assays.

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A novel method for synthesizing dumbbell-shaped (GdTb)O(CO)·HO (GOC:Tb) phosphors using sodium carbonate was investigated. An amount of 1 mmol of stable fluorescent powder can be widely prepared using 3-11 mmol of NaCO at a pH value of 8.5-10.

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Sushi domain-containing protein 4 (SUSD4) is a complement regulatory protein whose primary function is to inhibit the complement system, and it is involved in immune regulation. The role of SUSD4 in cancer progression has largely remained elusive. SUSD4 was studied across a variety of cancer types in this study.

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Dy, Ce co-doped KY(CO) phosphors with a monoclinic structure were synthesized using the hydrothermal method to create a fixed yellow-to-blue ratio emission. The [YO] polyhedron, consisting of a Y atom and eight oxygen atoms, forms a relatively independent microstructure within the KY(CO) host. Y ions are partially replaced by Ce or Dy ions to construct the [CeO] or [DyO] polyhedral fluorescence emission unit.

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Article Synopsis
  • - The study aimed to find out if locally advanced rectal cancer (LARC) cases with a negative MRI-predicted mesorectal fascia (MRF) could skip preoperative radiation therapy (CRT) and go straight to surgery instead.
  • - It involved a randomized clinical trial with 275 patients, comparing outcomes between those who had primary surgery (intervention group) and those who received preoperative CRT followed by surgery (control group).
  • - After analyzing 3-year disease-free survival rates, results showed that the intervention group had a rate of 81.82% compared to 85.37% in the control group, leading to the trial's early termination due to more local recurrences in the intervention group.
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Background: Lactate accumulation leads to an acidic tumor microenvironment (TME), in turn promoting colorectal cancer (CRC) progression. Tumor-associated macrophages (TAMs) are the predominant cells in TME. This study aimed to reveal the regulation mechanism of CRC cell-derived lactate on TAMs and explore the mechanism underlying lactate accumulation-induced aggravation in CRC.

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Phosphors with a longer excitation wavelength exhibit higher energy conversion efficiency. Herein, quantum cutting KGd(CO):Tb phosphors excited by middle-wave ultraviolet were synthesized via a hydrothermal method. All the KGd(CO):Tb phosphors remain in monoclinic structures in a large Tb doping range.

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Death-associated protein kinase 1 (DAPK1), as a calcium/calmodulin (CaM) regulated serine/threonine kinase, functions in apoptotic and autophagy pathways and represents an interesting drug target for inflammatory bowel disease and Alzheimer's disease. The crystal structure of the DAPK1 catalytic domain and the autoregulatory domain (ARD) in complex with CaM provides an understanding of CaM-dependent regulation of DAPK1 activity. However, the molecular basis of how distinct Trp305 (W305Y and W305D) mutations in the ARD modulate different DAPK1 activities remains unknown.

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Background: (NEAT1) is commonly considered an oncogene in various cancers. The long noncoding RNA NEAT1 has been reported to be overexpressed in colorectal cancer (CRC). However, the exact role of NEAT1 in CRC remains unknown.

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Highly efficient quantum cutting KY(CO):Tb phosphors excited by ultraviolet B (UVB) and ultraviolet C (UVC) were investigated. The structural and spectroscopic properties were characterized by XRD analysis and fluorescence spectrophotometry, respectively. The results showed that the monoclinic crystal structure of KY(CO):Tb remained in the Tb doping range of 0~100%.

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Backgroud: Malnutrition has been confirmed to play an important role in colorectal cancer (CRC) progression via the gut microenvironment. However, the characteristics of the gut microbiota or its potential biological mechanism in CRC remain inconclusive.

Methods: In this work, Patient-Generated Subjective Global Assessment (PG-SGA) tool and 16sRNA sequencing were prepared to detect the variation in gut microbiota and the association between nutrition status and gut microbiota.

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The purpose of this study was to evaluate the co-prescription efficacy of esomeprazole and flupenthixol/melitracen relative to that of solitary esomeprazole on erosive gastritis complicated with negative feelings. 140 erosive gastritis patients complicated with negative feelings enrolled in the present study. Seventy cases in the control group took esomeprazole, and 70 cases in the observation group received esomeprazole plus flupenthixol/Melitracen, both for 4 weeks.

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Background: Colon cancer (CRC) is a common type of tumour, and IQGAP family proteins play an important role in many tumours. However, their roles in CRC remain unclear.

Methods: First, we searched many public databases to comprehensively analyze expression of IQGAPs in CRC.

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To study the effects of omega-3 fatty acid parenteral nutrition on the nutrition, inflammatory responses, immunity and prognoses of critically ill cancer patients. A total of 80 critically ill cancer patients were randomly divided into an observation group and a control group, 40 cases in each group. Both groups of patients received equal-nitrogen and equal-calorie enteral and parenteral nutrition.

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The major antigenic protein of infectious hematopoietic necrosis virus (IHNV) is the surface glycoprotein G, which contains neutralizing epitopes that induce the production of immune neutralizing antibodies. In this study, the IHNV G gene sequence was truncated according to bioinformatics principles and then recombinantly expressed via an E. coli expression system.

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Infectious pancreatic necrosis virus (IPNV) primarily infects larvae and young salmonid with serious economic losses, which causes haemorrhage and putrescence of hepatopancreas. To develop a more effective oral vaccine against IPNV infection, the aeromonas hydrophila adhesion (AHA1) gene was used as a targeting molecule for intestinal epithelial cells. A genetically engineered Lactobacillus casei (pPG-612-AHA1-CK6-VP2/L.

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Background: Currently, few specific biomarkers or standard cutoff values are available for circulating tumor cells (CTCs) detection and survival prediction in patients with early stage colorectal cancer (CRC). Guanylyl cyclase C (GCC) presents as a specific expression in intestinal tumor cells and during their metastases, indicating its potential application as a metastatic predictor of CRC.

Methods: The circulating GCC mRNA of 160 colorectal cancer patients at stage I-III was detected via quantitative real-time (qRT)-PCR in our study, and the correlation of GCC mRNA level with tumor metastasis and long-term survival was explored.

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RNA viruses including many retroviruses encode "late-domain" motifs that can interact with host proteins to mediate viral assembly and affect viral budding and pathogenicity. For IHNV, our previous studies demonstrated that the respective interactions of the L domains of IHNV with host proteins could mediate viral assembly and budding. To our knowledge, the role of L domains of the IHNV in the budding and pathogenicity has not investigated yet.

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In cytokinetic abscission, phagophore formation, and enveloped virus budding are mediated by the endosomal sorting complex required for transport (ESCRT). Many retroviruses and RNA viruses encode "late-domain" motifs that can interact with the components of the ESCRT pathway to mediate the viral assembly and budding. However, the rhabdovirus in fish has been rarely investigated.

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: Perineural invasion (PNI) and lymphovascular invasion (LVI) are associated with poor prognosis in colorectal cancer, but their clinical significance is still controversial for patients with locally advanced rectal cancer (LARC) who had received neoadjuvant chemoradiotherapy (nCRT) and surgical resection. The aim of this study was to confirm the correlation between PNI and/or LVI and clinical prognosis and to further confirm whether PNI and/or LVI can be used as potential prognostic indicators of adjuvant chemotherapy after nCRT and surgery in LARC. : From February 2002 to December 2012, a total of 181 patients with LARC who had received nCRT and surgical resection were retrospectively reviewed.

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Purpose: Our animal studies have demonstrated the safety and feasibility of end-to-end intestinal anastomosis using a stent for laparoscopic colonic surgery. Therefore, we designed a non-inferiority trial to investigate the outcomes of stent anastomosis (SA) vs. those of conventional hand-sewn anastomosis (CA).

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Objective: This study aimed to investigate the expression level and clinical significance of serum NT5E protein (ecto-5'-nucleotidase) in patients with colorectal cancer.

Methods: The expression level of serum NT5E protein in 232 patients with colorectal cancer and 158 normal controls was detected using enzyme-linked immunosorbent assay. Moreover, the relationship between the expression level of serum NT5E and the clinicopathological features of colorectal cancer was analyzed.

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Infectious hematopoietic necrosis virus (IHNV) and infectious pancreatic necrosis virus (IPNV) are important pathogens in rainbow trout farming worldwide. Their co-infection is also common, which causes great economic loss in juvenile salmon species. Development of a universal virus vaccine providing broadly cross-protective immunity will be of great importance.

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The lungs are the second most common site of metastasis for colorectal cancer (CRC) after the liver. Rectal cancer is associated with a higher incidence of lung metastases compared to colon cancer. In China, the proportion of rectal cancer cases is around 50%, much higher than that in Western countries (nearly 30%).

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