Publications by authors named "Biao Gu"

Article Synopsis
  • * The treatment with shikonin decreases the viability, migration, and invasion abilities of EC9706 cells by activating the AMPK/mTOR/ULK signaling pathway.
  • * Inhibition of autophagy can protect EC9706 cells from shikonin's effects, suggesting that targeting the AMPK/mTOR/ULK axis may offer a new approach for treating esophageal cancer.
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Article Synopsis
  • Colorectal cancer (CRC) progression is significantly influenced by hypoxia, with a focus on the GPNMB+ Macrophage subgroup which shows increased presence in tumor tissues and is linked to poorer survival outcomes.
  • Machine learning techniques were used to create the Hypoxia-Related Macrophage Risk Score (HMRS), identifying it as an independent prognostic factor that predicts chemotherapy and immunotherapy responses in CRC patients.
  • The study highlights that GPNMB+ Macrophages contribute to CRC malignancy, while HMRS may also be applicable as a prognostic tool in other digestive tract cancers.
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As a valuable industrial chemical, thiophenol (PhSH) is poisonous, which can be easily absorbed by the human body, leading to many serious health issues. In addition, PhSH-triggered oxidative stress is considered to be related with the pathogenesis and toxicity of PhSH. Therefore, efficient methods for monitoring PhSH and ROS production induced by PhSH in living systems are very meaningful and desired.

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Background: Currently, conventional closed thoracic drainage for pneumothorax involves a painful procedure with a higher risk and wider (1~1.5 cm) incision. Minimally invasive catheterized drainage techniques are urgently needed to address this challenge.

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Heading date (or flowering time) is a key agronomic trait that affects seasonal and regional adaption of rice cultivars. An unoptimized heading date can either not achieve a high yield or has a high risk of encountering abiotic stresses. There is a strong demand on the mild to moderate adjusting the heading date in breeding practice.

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Objective: This study aimed to explore the specific mechanism of action of Progranulin (PGRN) in non-small cell lung cancer (NSCLC) and its interaction with lncRNA H19.

Methods: Normal and cancerous lung tissues were collected from patients with NSCLC and healthy volunteers. We assessed the expression of PGRN in both groups using immunohistochemistry, quantitative-reverse transcription-polymerase chain reaction (qRT-PCR), and western blotting (WB).

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Phytophthora capsici deploys effector proteins to manipulate host immunity and facilitate its colonization. However, the underlying mechanisms remain largely unclear. In this study, we demonstrated that a Sne-like (Snel) RxLR effector gene PcSnel4 is highly expressed at the early stages of P.

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The development of effective methods for tracking Cu and HS in living organisms is urgently required due to their vital function in a variety of pathophysiological processes. In this work, a new fluorescent sensor BDF with excited-state intramolecular proton transfer (ESIPT) and aggregation-induced emission (AIE) features for the successive detection of Cu and HS was constructed by introducing 3,5-bis(trifluoromethyl)phenylacetonitrile into the benzothiazole skeleton. BDF showed a fast, selective and sensitive fluorescence "turn off" response to Cu in physiological media, and the situ-formed complex can serve as a fluorescence "turn on" sensor for highly selective detection of HS through the Cu displacement approach.

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As a destructive plant pathogen, Phytophthora infestans secretes diverse host-entering RxLR effectors to facilitate infection. One critical RxLR effector, PiAvr3b, not only induces effector-triggered immunity (ETI), which is associated with the potato resistance protein StR3b, but also suppresses pathogen-associated molecular pattern (PAMP)-triggered immunity (PTI). To date, the molecular basis underlying such dual activities remains unknown.

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A new "ESIPT + AIE" based dye of benzothiazole with red emission and a large Stokes shift was constructed by combining 2-(2'-hydroxyphenyl)benzothiazole as the ESIPT unit and α-cyanostilbene as the AIE unit. The compound BACN was found to be a ideal HClO chemosensor, and presented palpable fluorescence and colorimetric responses toward HClO via the HClO-trigged oxidation cleavage of the ethylene bridge activated by the electron withdrawing cyano group. BACN was capable of recognizing HClO rapidly (12 s) and sensitively under physiological conditions, with good selectivity over other biologically pertinent substances.

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Lung cancer is the cancer with the highest mortality in the world. So further exploration of the pathogenesis of lung cancer is of great significance. In this study, the specific role and related mechanism of CRIF1 in non-small cell lung cancer (NSCLC) were explored in this research.

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Detecting and imaging intracellular hypochlorous acid (HClO) is of great importance owning to its prominent role in numerous pathological and physiological processes. In this contribution, a novel AIE-based fluorescent chemosensor has been developed by employing a benzothiazole derivative. The synthesized probe displayed remarkable ratiometric fluorescent response to HClO with a large emission shift (139 nm), resulting in naked-eye fluorescence changes from red to blue.

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Background: Litchi downy blight, caused by Phytophthora litchii, is one of the most important diseases of litchi. Ametoctradin, as the only QioI (quinone inside and outside inhibitor) fungicide, has been registered in China in 2019. However, the ametoctradin-resistance risk and molecular basis in Phytophthora litchii have not been reported.

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Fluorescent porous organic cage with good water solubility is of great interest but still challenging for its fluorescent sensing application. Poor water solubility and single signal of most previous probes are unfavorable for the monitoring of Au generated from the potential dissociation of gold nanoparticles in environmental and biological samples. Here we report a water-soluble porous organic cage as a ratiometric fluorescent probe for Au in aqueous solution.

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Nitric oxide (NO), an essential biological messenger molecule, participates in various physiological and pathological processes. The sensitive and specific detection of NO is of great significance for understanding the biological function of NO. Here, we synthesized a fluorescent probe (Rho-NO) for highly selective detection of NO both in vitro and in vivo.

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Background: Gray mold caused by Botrytis cinerea Pers. is one of the most significant airborne diseases. It can infest a wide range of crops, causing significant losses in yield and quality worldwide.

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The abnormal accumulation of copper ions (Cu) is considered to be one of the pathological factors of Alzheimer's disease (AD), but the internal relationship between Cu and AD progression is still not fully clear. In this work, a sensitive and selective near-infrared fluorescent copper ion probe (DDP-Cu) was designed for quantification and visualization of Cu level in lysates, living cells, living zebrafish and brain tissues of drosophila and mice with AD. By using this probe, we demonstrated that the content of Cu in the brains of AD mice and drosophila enhanced nearly 3.

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Prochloraz is widely used to control rice bakanae disease caused by . The current study was aimed at monitoring the development of resistance to prochloraz in the Heilongjiang Province and analyzing the fitness of strains with different resistance levels. The results indicated that most of the 89 strains collected from the Heilongjiang Province were resistant to prochloraz, with resistance frequency reaching 92.

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Peroxynitrite (ONOO) plays important roles in many pathophysiological processes and its subcellular detection draws increasing attention. In this study, we designed and prepared a novel lysosome-targetable fluorescent probe (E)-2-(benzo[d]thiazol-2- yl)-4-methyl-6-((morpholinoimino)methyl)phenol (BMP) for selective detection of ONOO in living systems by incorporating a reactive morpholino hydrazone as new ONOO response site into a benzothiazole derivative as fluorophore. After reaction with ONOO, an obvious fluorescence increase (83-fold) was observed accompanied with distinct dual colorimetric and fluorescence changes.

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The aim of the present study was to investigate the role and regulatory mechanism of LBX2 antisense RNA 1 (LBX2‑AS1) in colorectal cancer. Firstly, LBX2‑AS1 expression was detected using reverse transcription‑quantitative PCR in colorectal cancer tissues and cells, and its prognostic and diagnostic efficacy was assessed in a colorectal cancer cohort (n=145). Subcellular fractionation assay of LBX2‑AS1 was performed.

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Transcriptional plasticity enables oomycetes to rapidly adapt to environmental challenges including emerging host resistance. For example, the soybean pathogen can overcome resistance conferred by the host resistance gene through natural silencing of its corresponding effector gene, . With the CRISPR/Cas9 genome editing system, it is possible to generate site-specific knock-out (KO) and knock-in (KI) mutants and to investigate the biological functions of target genes.

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Νon-small cell lung cancer (NSCLC) is the most frequently diagnosed type of cancer, and the most prevalent cause of cancer-associated mortality. The present study aimed to investigate whether microRNA (miR)-564 influences NSCLC progression by regulating NSCLC cell growth and migration, via targeting plexin A4. Therefore, the expression levels of miR-564 and plexin A4 were evaluated in NSCLC specimens or cells using reverse transcription-quantitative PCR.

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Bisulfite (HSO) and sulfite (SO) are involved in numerous physiological processes of living systems. However, high levels of these substances are often correlated to many diseases. Herein, we designed and synthesized a simple full water-soluble colorimetric and far-red fluorescent probe (E)-1-methyl-4-(2-(1-methylquinolin-1-ium-3-yl)vinyl)quinolin-1-ium iodide trifluoromethanesulfonate (DQ) for HSO/SO detection by coupling 1,4-dimethylquinolinium with 3-quinolinium carboxaldehyde for the first time.

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Peroxynitrite (ONOO) plays a vital role in pathological and physiological processes, and an excessive amount of ONOO causes various diseases. Developing a specific and sensitive method for the detection of ONOO in biological systems is significant. Herein, we reported a novel colorimetric and near-infrared fluorescent probe (pyridin-4-ylmethyl (Z)-2-cyano-2-(3-((E)-4-hydroxystyryl)-5,5-dimethylcyclohex-2-en-1-ylidene)acetate diphenyl phosphinate group ()) based on isophorone and phosphinate groups for ONOO detection.

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Developing an effective method for monitoring fluoride ion in biological samples is meaningful because fluoride ion plays a vital role in biological processes. In this contribution, a simple water-soluble ESIPT fluorescent probe 2-((4-((-butyldiphenylsilyl)oxy)-1,3-dioxoisoindolin-2-yl)methyl)-1-ethylpyridin-1-ium iodide () was constructed for monitoring fluoride ion. The probe containing pyridinium salt group exhibited preeminent water solubility.

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