Publications by authors named "Dongbao Li"

Timed termination of floral meristem (FM) is crucial for proper development of floral organs and fruits. In , ()- () feedback regulation maintains FM homeostasis in early stage of floral buds. It is known that the zinc finger protein SlKNUCKLES (SlKNU) functions to promote FM determinacy by directly repressing the stem cell identity gene .

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Gastric cancer is a malignant gastrointestinal disease characterized by high morbidity and mortality rates worldwide. The occurrence and progression of gastric cancer are influenced by various factors, including the abnormal alternative splicing of key genes. Recently, RBM39 has emerged as a tumor biomarker that regulates alternative splicing in several types of cancer.

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The peritoneum is the most common metastatic site of advanced gastric cancer and is associated with extremely poor prognosis. Endothelial-specific molecule 1 (ESM1) was found to be significantly associated with gastric cancer peritoneal metastasis (GCPM); however, the biological functions and molecular mechanisms of ESM1 in regulating GCPM remain unclear. Herein, we demonstrated that ESM1 expression was significantly upregulated in gastric cancer tissues and positively correlated with platelet endothelial cell adhesion molecule-1 (CD31) levels.

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Article Synopsis
  • - The study introduces a new method called CASPA-dCas9 to identify native regulators of the SERRATE (SE) locus, crucial for biological processes and stress resistance.
  • - Key regulatory factors found include PAR2, WRKY19, and MYB27, with MYB27 playing a significant role in repressing SE by recruiting a complex that adds a chemical mark to SE’s DNA.
  • - The interaction between PAR2 and MYB27 is important for fine-tuning SE expression across developmental stages, while both PAR2 and WRKY19 work together to enhance SE expression in response to pathogens.
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Background: Recent studies suggested that NDUFS1 has an important role in human cancers; however, the effects of NDUFS1 on gastric cancer (GC) are still not fully understood.

Methods: We confirmed that NDUFS1 is downregulated in GC cells through western blot immunohistochemistry and bioinformation analysis. The effect of NDUFS1 on GC was studied by CCK-8, colony formation, transwell assay in vitro and Mouse xenograft assay in vivo.

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Background: Gastric cancer peritoneal metastasis (GCPM) is an important cause of cancer-related deaths worldwide. Long non-coding RNAs (lncRNAs) play a key role in the regulation of GCPM, but the underlying mechanisms have not been elucidated.

Methods: High-throughput RNA sequencing (RNA-seq) was performed on four groups of clinical specimens (non-metastatic gastric cancer primary tumor, adjacent normal gastric mucosal tissue, gastric cancer primary tumor with peritoneal metastasis and adjacent normal gastric mucosal tissue).

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Metastasis is an important factor contributing to poor prognosis in patients with gastric cancer; yet, the molecular mechanism leading to this cell behavior is still not well understood. In this study, we explored the role of cysteine protease inhibitor SN (Cystatin SN, CST1) in promoting gastric cancer metastasis. We hypothesized that CST1 could regulate gastric cancer progression by regulating GPX4 and ferroptosis.

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Article Synopsis
  • This study investigated the risk factors for residual cancer and lymph node metastasis in early gastric cancer patients after noncurative endoscopic submucosal dissection (ESD), assessing the outcomes of early versus delayed additional surgeries.
  • Risk factors for residual cancer included diffuse type of Lauren classification, submucosal invasion, and positive HER-2, while undifferentiated carcinoma and vascular invasion were linked to lymph node metastasis.
  • The early surgery group faced higher intraoperative blood loss and longer operation time, but no significant differences were found in lymph node dissection outcomes or postoperative complications compared to delayed and upfront surgery groups.
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Background: Pancreatic cancer has a high degree of malignancy and poor prognosis. As the first-line chemotherapy drug for pancreatic cancer, gemcitabine is widely used but is limited in its efficacy due to the development of chemoresistance. Huaier is a traditional Chinese medicine with anticancer effects.

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Background: The anti-tumor effect of interleukin (IL)-36β-mediated activation of CD8 T cells has been reported, but the molecular mechanism is largely undefined.

Methods: The levels of IL-36β in pancreatic cancer were examined by quantitative real-time PCR (qRT-PCR) and immunohistochemical staining. Cytology and animal experiments were performed to study the effects of IL-36β on the growth of pancreatic cancer cells.

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As a newly discovered cytokine, interleukin 9 was initially considered a T-lymphocyte growth factor. Interleukin 9 affects target cells by binding to a member of the γc-family of receptors and is involved in inflammation, autoimmune diseases, and other ailments. In recent years, mounting evidence reveals that interleukin 9 exerts antitumor effects, which has attracted considerable attention.

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Interleukin enhancer binding factor 2 (ILF2) participates in several aspects of DNA and RNA metabolism and regulates gene expression at multiple levels; however, its role in breast cancer remains undefined. The variant statuses of in human breast cancer were evaluated using the COSMIC database. Altered expression in normal breast tissue relative to cancer tissue and in breast cancer patients with different clinicopathological characteristics, molecular subtypes, clinical outcomes and chemotherapy responses were examined using the Oncomine, GOBO, Kaplan-Meier plotter and GEO datasets.

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Objective: This study aimed to investigate the role of B7-H3 in chemotherapy resistance of pancreatic cancer cells and discover the potential signal transduction pathway and molecular targets involved.

Methods: Immunohistochemical staining and real-time polymerase chain reaction (PCR) were used to determine the expression of B7-H3 in clinical specimens. Clinical data were applied to survival analysis.

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Article Synopsis
  • The study aimed to compare the effectiveness of axillary radiotherapy (ART) versus completion axillary lymph node dissection (cALND) in breast cancer patients who were clinically node-negative but had a positive sentinel lymph node.
  • A review of literature from 2004 to 2016 included only randomized controlled trials that focused on patients with positive sentinel nodes, revealing similar overall survival, disease-free survival, and axillary recurrence rates between both treatment options.
  • The findings suggest that ART is as effective as cALND in this patient group, and that the detailed information from cALND doesn't significantly affect subsequent systemic therapy decisions.
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We investigated the relationship between platelet to lymphocyte ratio (PLR) and contrast-induced nephropathy (CIN) in patients with ST-segment elevation myocardial infarction (STEMI) undergoing primary percutaneous coronary intervention (pPCI). We enrolled 5719 patients in 3 tertiary hospitals from January 2005 to December 2010. The PLR was calculated as the ratio of platelet to lymphocyte counts on admission.

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We investigated the association between platelet-to-lymphocyte ratio (PLR) and clinical outcomes (including all-cause mortality, recurrent myocardial infarction, heart failure, serious cardiac arrhythmias and ischemic stroke) in patients with ST-segment elevation myocardial infarction (STEMI). Based on PLR quartiles, 5886 patients with STEMI were categorized into 4 groups: <98.8 (n = 1470), 98.

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Background: Coronary artery disease (CAD) is a leading cause of morbidity and mortality in patients with connective tissue diseases (CTDs). Risk factors and clinical characteristics in these patients are not equivalent to those in traditional CAD patients. The objective of this study was to report short- and long-term clinical outcomes in a consecutive series of patients with CTD who underwent percutaneous coronary intervention (PCI) with stent implantation.

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Aldosterone synthase is a mitochondrial enzyme that catalyzes the conversion of 11-deoxycorticosterone to the potent mineralocorticoid aldosterone. The gene encoding aldosterone synthase, CYP11B2, is associated with essential hypertension. But if the genetic variations in aldosterone synthesis could influence the antihypertensive response to Valsartan is not clear.

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Objectives: Recent studies have reported increased red blood cell distribution width (RDW) has been associated with adverse outcomes in heart failure and stable coronary disease. We investigated the association between RDW and risk of all-cause mortality in patients with ST-elevation myocardial infarction (STEMI) who were free of heart failure at baseline.

Methods: We enrolled 691 patients with STEMI who were free of heart failure at baseline confirmed by coronary angiography in Beijing Friendship Hospital from January 2007 to December 2008.

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Objective: The present study was designed to investigate whether microvascular remodeling could occur in hibernating myocardium and infarction regions distal to a total occluded coronary artery after acute myocardial infarction.

Materials And Methods: Copper stents were implanted in the left descending coronary arteries of 64 pigs to induce anterior wall myocardial infarction. The pigs were assigned randomly to group A (n=8; killed at 1 week), group B (n=8; killed at 2 weeks), group C (n=16; killed at 4 weeks), group D (n=16; killed at 3 months), and group E (n=16; killed at 6 months).

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Background: Hyperglycemia on admission is a predictor of an unfavorable prognosis in patients with ST-elevation Acute Myocardial Infarction (AMI). Data concerning associations between an elevated glucose level on admission and other in-hospital complications are still limited.

Methods: A total of 1,137 AMI patients with complete admission blood glucose level (ABGL) analysis were identified and stratified according to ABGL.

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Objective: Angiographic slow/no-reflow during emergency percutaneous coronary intervention (PCI) in patients with ST-elevated acute myocardial infarction (AMI) may result in unfavorable outcomes. The aim of our study was to investigate the clinical factors and angiographic findings that predict slow/no-reflow phenomenon and the long-term prognosis of AMI patients with angiographic slow/no-reflow.

Methods: A total of 210 consecutive AMI patients, who underwent primary PCI within 12 hours of symptom onset were divided into a normal flow group (thrombolysis in myocardial infarction [TIMI] flow grade 3, n = 169) and a slow/no-reflow group (≤TIMI flow grade 2, n = 41), based on cineangiograms performed during PCI.

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