Publications by authors named "Deguang Sun"

Article Synopsis
  • A concerned reader alerted the Editor that certain data in this paper closely resembled data from two other articles by different authors and institutions.
  • One of these articles had already been submitted before this paper, while the other has since been retracted.
  • The Editor decided to retract this paper due to the prior submission of the conflicting data, and the authors did not respond to requests for an explanation.
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Dysregulation of protein core-fucosylation plays a pivotal role in the onset, progression, and immunosuppression of cancer. However, analyzing core-fucosylation, especially the accurate determination of the core-fucosylation (CF) site occupancy ratio, remains challenging. To address these problems, we developed a truncation strategy that efficiently converts intact glycopeptides with hundreds of different glycans into two truncated forms, i.

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SPTBN2 is a protein-coding gene that is closely related to the development of malignant tumors. However, its prognostic value and biological function in pan-cancer, especially pancreatic cancer (PAAD), have not been reported. In the present study, a novel exploration of the value and potential mechanism of SPTBN2 in PAAD was conducted using multi-omics in the background of pan-cancer.

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Subsequently to the publication of the above paper, the authors have reviewed its content and the primary data, and have realized that the western blots selected to show the β‑actin experiments featured in Fig. 4A and Fig. 3C were the same blot, albeit with a different exposure time.

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In this work, we reported a young man complaining of asthenia and intermittent fever for 10 days, and an ultrasound showed an undefined lesion on his liver. Facing the patient's situation with severe agranulocytosis, anemia, and thrombocytopenia, we passed through a tough diagnostic process for choosing an appropriate treatment for him with an ambiguous result of pathological biopsy. The undefined liver lesion was successfully solved by withdrawing the androgen for observation, without lobectomy.

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Aim: Lung injury is a common complication of acute pancreatitis (AP), which leads to the development of acute respiratory distress syndrome and causes high mortality. In the present study, we investigated the therapeutic effect of emodin on AP-induced lung injury and explored the molecular mechanisms involved.

Materials And Methods: Thirty male Sprague-Dawley rats were randomly divided into AP (n=24) and normal (n=6) groups.

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Article Synopsis
  • Recent research shows that miRNA, specifically miR-3196, is significant in the development of hepatocellular carcinoma (HCC), but its exact role was previously unclear.
  • miR-3196 is found to be downregulated in HCC tissues, with lower levels linked to larger tumor size and advanced TNM stages.
  • Increasing miR-3196 levels can suppress HCC cell growth and make them less resistant to chemotherapy, with the tumor suppressor p53 enhancing miR-3196 expression and influencing the negative regulation of FOXP4, contributing to reduced tumor growth and increased cell death.
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  • CBX2, a protein in the polycomb group complex, has been linked to poor prognosis in patients with hepatocellular carcinoma (HCC) based on recent research.
  • Studies show that reducing CBX2 expression decreases HCC cell growth and increases cell death, suggesting its role as an oncogene.
  • The mechanism involves CBX2's impact on the Hippo pathway, leading to increased phosphorylation of YAP and highlighting CBX2 as a potential target for HCC treatment.
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Determination of site-specific glycoforms is the key to reveal the micro-heterogeneity of protein glycosylation at proteome level. Herein, we presented an integrated virtual multistage MS strategy to identify intact glycopeptides, which allowed the determination of site-specific glycoforms. In this strategy, the enzymatically de-glycosylated peptides and intact glycopeptides were mixed and analyzed in the same LC-MS/MS run.

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In order to study the assembly mechanism of phycocyanin in red algae, the apo-phycocyanin genes (pcB and pcA) were cloned from Gracilariopsis lemaneiformis. The full length of phycocyanin β-subunit (pcB) contained 519 nucleotides encoding a protein of 172 amino acids, and the full length of phycocyanin α-subunit(pcA) contained 489 nucleotides encoding a protein of 162 amino acids. Expression vector pACYCDuet-pcB-pcA was constructed and transformed into E.

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Haematococcus pluvialis is an economic microalga to produce astaxathin. To study the nitrogen metabolic process of H. pluvialis, the transcription level and enzyme content of nitrite reductase at different nitrate and phosphorus concentrations were studied.

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  • Aurantiochytrium limacinum is recognized for its high levels of polyunsaturated fatty acids, specifically docosahexaenoic acid (DHA), which is produced via the polyketide synthase (PKS) pathway involving three gene clusters: pks1, pks2, and pks3.
  • The researchers successfully amplified the full-length pks3 gene and identified key enzyme domains (KR and DH) that are important for DHA synthesis.
  • By knocking in the KR and DH genes into A. limacinum, they increased the total fatty acid content and unsaturation levels, paving the way for enhanced industrial production of DHA.
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A horseshoe appendix is a subtype of duplex appendix, in which the appendix is shaped like a circle that may lead to an internal hernia and result in intestinal necrosis. This subtype is extremely rare, with only 13 cases reported worldwide to date, and easily triggers a series of medico-legal consequences due to the neglect of another infection base of the appendix. We describe a 22-year-old man who presented with a 3-day history of fever and was diagnosed with pneumonia.

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Hepatocellular carcinoma (HCC) is the major subtype of primary liver cancer. Although the standard treatment method based on surgery has generally extended life, it still causes the second and sixth most prevalent cancer-related death in men and women, respectively. The recurrence of cancer caused by unclear resection margins and any remaining undiscovered metastatic nodules should take a large proportion of responsibility for the poor prognosis after resective surgery.

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Metformin had exerted important inhibitory effects in multiple cancers. However, the correlation between metformin and hepatocellular carcinoma (HCC) metastasis, and the relevant mechanisms are still unclear. By quantitative proteomics analysis technique, we found metformin could suppress FGF signalling significantly.

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Background/aims: Recent evidence has indicated the crucial regulatory roles of long non-coding RNAs (lncRNAs) in tumour biology. In hepatocellular carcinoma (HCC), aberrant expression of lncRNAs plays an essential role in HCC tumourigenesis. However, the potential roles and regulatory mechanisms of the novel human lncRNA, Linc-USP16, in HCC are unclear.

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Article Synopsis
  • - The study investigates the regulatory mechanisms behind poorly differentiated hepatocellular carcinoma (HCC), finding that it has a high recurrence rate and poor prognosis.
  • - High-throughput sequencing was used to analyze the expression of miRNAs and mRNAs in poorly differentiated HCC tissues, identifying 1,051 differentially expressed genes and 165 differentially expressed miRNAs.
  • - Key proteins (TM4SF1, ANXA2, C8orf33) and the miRNA hsa-miR-1180 are proposed as potential biomarkers for early diagnosis and survival prediction in poorly differentiated HCC.
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Hepatocellular carcinoma (HCC) is a common malignant tumor of the digestive system, and patients with advanced HCC have a poor outlook, partly due to resistance to chemotherapeutic drugs. Previous studies have implicated microRNAs in the regulation of chemoresistance, and we have previously shown that microRNA (miR)-205-5p is down-regulated in multiple hepatoma cell lines. Here, we investigate whether miR-205-5p is involved in chemotherapeutic resistance in HCC.

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Kinase inhibitors that target Bcr-Abl are highly effective in the treatment of chronic myeloid leukemia (CML). However, these inhibitors are often invalidated due to the drug resistance. Therefore, the discovery and development of novel Bcr-Abl inhibitors is required to overwhelm the drug resistance in the treatment of CML resistant to the currently used first-line Bcr-Abl inhibitors.

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Article Synopsis
  • Notch1 is involved in important functions like cell growth, death, movement, and invasion in various cancers, including hepatocellular carcinoma (HCC).
  • Researchers found that reducing Notch1 levels in HCC tissues led to decreased Notch1 and NICD1 expression, and in lab experiments, manipulating Notch1 affected cell behavior significantly.
  • The study suggests that Notch1 influences the JNK signaling pathway, promotes cell death, and could be a potential target for new HCC treatments, addressing a critical need due to poor patient prognosis.
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Recent evidence shows that miRNAs are dysregulated in a variety of cancers including gastric cancer (GC), and emerging as key oncogenes or tumor suppressors. In this study, qRT-PCR was used to analyze the expression of miR-186 in GC tissues and adjacent non-cancerous tissues, and then more in-vitro experiments were used to investigate the role of miR-186 in GC cells. Here, we identified miR-186 was generally down-regulated in GC tissues; however, Twist1 was generally up-regulated in GC tissues.

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Article Synopsis
  • The study investigates the role of Pinin, previously linked to cell adhesion and RNA splicing, in hepatocellular carcinoma (HCC) and finds that Pinin is overexpressed in HCC tissues and is correlated with disease severity and patient survival.
  • Reducing Pinin expression leads to decreased HCC cell growth and increased cell death under glucose deprivation, while increasing Pinin levels reverses these effects.
  • The research suggests that Pinin promotes HCC progression and resistance to cell death by activating ERK1/2 signaling, indicating it may serve as a potential target for therapeutic intervention in HCC.
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  • Metformin has been shown to help control tumor cell growth in various cancers, including hepatocellular carcinoma (HCC), especially in patients with type 2 diabetes.
  • A study found that patients with HCC who took metformin had improved overall survival rates and that metformin made tumor cells more sensitive to the chemotherapy drug 5-fluorouracil (5-Fu).
  • The mechanism involves metformin decreasing YAP protein levels, which in turn promotes PTEN expression and inhibits the Akt pathway, ultimately lowering certain drug resistance proteins and enhancing the effectiveness of chemotherapeutics.*
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  • Growing teratoma syndrome (GTS), first noted in 1982, is a rare condition primarily affecting adolescents, and in this case, an adolescent girl underwent surgery for an immature teratoma in her ovary, followed by chemotherapy.
  • Nine years later, a giant mass was discovered, diagnosed as a mature teratoma, leading to the identification of ovarian GTS.
  • Analysis of 101 documented GTS cases indicated a median diagnosis age of 22, with right ovary involvement more common, and highlighted the need for complete surgical resection as the best treatment due to possible recurrence and insensitivity to chemotherapy, while also suggesting fertility-sparing options for young women.
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Article Synopsis
  • The Nogo-B receptor (NgBR) is a receptor that plays a role in breast cancer metastasis by promoting epithelial mesenchymal transition (EMT).
  • Increased NgBR expression has been linked to greater resistance to chemotherapy in a specific 5-FU resistant liver cancer cell line.
  • Targeting NgBR could potentially enhance the effectiveness of chemotherapy treatments like 5-FU for patients with hepatocellular carcinoma (HCC), particularly those with poor prognoses.
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