994 results match your criteria: "KRIBB School[Affiliation]"

Sepsis is an inflammatory condition causing organ failure due to an uncontrolled immune response to infection and remains a significant challenge. Crotonis Semen has displayed various pharmacological effects, yet its potential in protecting against sepsis and the mechanisms involved remains largely unclear. Here, we explored the antiseptic properties of Crotons Semen extract (CSE) in both LPS-stimulated J774 macrophages and mice subjected to sepsis through Cecal ligation and Puncture (CLP) or LPS induction.

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To enhance the practical application of intestinal organoids, it is imperative to establish standardized guidelines. This proposed standardization outlines a comprehensive framework to ensure consistency and reliability in the development, characterization, and application of intestinal organoids. The recommended guidelines encompass crucial parameters, including culture conditions, critical quality attributes, quality control measures, and functional assessments, aimed at fostering a standardized approach across diverse research initiatives.

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  • Gastritis and gastric ulcers are common conditions caused by factors like infection, drugs, alcohol, or stress, resulting in inflammation and damage to the stomach lining.
  • The study explored the protective effects of SA, a plant with known anti-inflammatory properties, using mouse models and cell cultures, revealing that SA reduces gastric injury and inflammation.
  • Key findings showed that SA and its key compound, kaempferol, significantly decreased gastric lesions and inflammatory responses by inhibiting specific cellular signaling pathways associated with inflammation.
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  • Tauopathy, including disorders like frontotemporal lobar dementia and Alzheimer's, involves the harmful buildup of Tau protein due to issues in protein management.
  • In a study using transgenic zebrafish, researchers found that Tau protein was effectively cleared through enhanced autophagy, but tauopathy-like symptoms appeared when autophagy was inhibited.
  • The study highlighted the crucial role of the protein valosin-containing protein (VCP) in promoting Tau degradation, with findings suggesting that boosting VCP could be a promising therapy for tauopathy, particularly in Alzheimer’s patients where VCP levels are significantly lower.
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Small Molecule Detection with Ligation-Dependent Light-Up Aptamer Transcriptional Amplification.

ACS Appl Bio Mater

October 2024

Department of Nanobiotechnology, KRIBB School of Biotechnology, University of Science and Technology, Daejeon 34113, Republic of Korea.

ATP and NAD are small biomolecules that participate in a variety of physiological functions and are considered as potential biomarkers for disease diagnosis. In this study, we developed a ligation-dependent light-up aptamer transcriptional amplification assay for the sensitive and selective detection of ATP and NAD. This assay relies on a specific DNA ligase that catalyzes the ligation of a nicked DNA template in the presence of a specific small molecule.

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Gastric cancer (GC) is recognized as the fifth most prevalent malignant tumor worldwide. It is characterized by diverse clinical symptoms, treatment responses, and prognoses. In GC prognosis, the promotion of epithelial-mesenchymal transition (EMT) fosters cancer cell invasion and metastasis, thereby triggering the dissemination of tumor cells.

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CHARMM at 45: Enhancements in Accessibility, Functionality, and Speed.

J Phys Chem B

October 2024

Harvard University, Department of Chemistry and Chemical Biology, Cambridge, Massachusetts 02138, United States.

Since its inception nearly a half century ago, CHARMM has been playing a central role in computational biochemistry and biophysics. Commensurate with the developments in experimental research and advances in computer hardware, the range of methods and applicability of CHARMM have also grown. This review summarizes major developments that occurred after 2009 when the last review of CHARMM was published.

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Paulownin, a natural compound derived from wood, exhibits various physiological functions, including anti-bacterial and anti-fungal effects. However, the impact of paulownin on natural killer (NK) cell immune activity remains largely unknown. In this study, we investigated the effect of paulownin on NK cell activity both and , and explored its potential mechanisms.

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Novel weapon-aided plant protection in the underground battlefield.

Plant Signal Behav

December 2024

Molecular Phytobacteriology Laboratory, Infectious Disease Research Center, KRIBB, Daejeon, South Korea.

and , the causative agents of bacterial wilt, ranks as the second most devastating phytopathogens, affecting over 310 plant species and causing substantial economic losses worldwide. and infect plants through the underground root system, where it interacts with both the host and the surrounding microbiota and multiply in the xylem where bacteria cell and its polysaccharide product block the water transportation from root to aboveground. Currently, effective control methods are limited, as resistance genes are unavailable and antibiotics prove ineffective.

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Biotechnological approaches for suppressing Microcystis blooms: insights and challenges.

Appl Microbiol Biotechnol

September 2024

Cell Factory Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-Ro, Yuseong-Gu, Daejeon, 34141, Republic of Korea.

Cyanobacterial harmful algal blooms, particularly those dominated by Microcystis, pose significant ecological and health risks worldwide. This review provides an overview of the latest advances in biotechnological approaches for mitigating Microcystis blooms, focusing on cyanobactericidal bacteria, fungi, eukaryotic microalgae, zooplankton, aquatic plants, and cyanophages. Recently, promising results have been obtained using cyanobactericidal bacteria: not through the inoculation of cultured bacteria, but rather by nurturing those already present in the periphyton or biofilms of aquatic plants.

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Molecular-profiling-based cancer diagnosis has significant implications for predicting disease prognosis and selecting targeted therapeutic interventions. The analysis of cancer-derived extracellular vesicles (EVs) provides a noninvasive and sequential method to assess the molecular landscape of cancer. Here, we developed an all-in-one fusogenic nanoreactor (FNR) encapsulating DNA-fueled molecular machines (DMMs) for the rapid and direct detection of EV-associated microRNAs (EV miRNAs) in a single step.

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Uncovering gene expression signatures and diagnostic - Biomarkers in hepatocellular carcinoma through multinomial logistic regression analysis.

J Biotechnol

November 2024

Department of Digital Bio Technology Innovation, Korea Research Institute of Bioscience & Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea; Department of Bioinformatics, KRIBB School of Bioscience, Korea University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea. Electronic address:

Hepatocellular carcinoma (HCC) is one of the leading causes of cancer death worldwide, and classifying the developmental stages of HCC can help with early prognosis and treatment. This study aimed to investigate diagnostic and prognostic molecular signatures underlying the progression of HCC, including tumor initiation and growth, and to classify its developmental stages based on gene expression levels. We integrated data from two cancer systems, including 78 patients with Edmondson-Steiner (ES) grade and 417 patients with TNM stage cancer.

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Synthetic Biology-Driven Microbial Therapeutics for Disease Treatment.

J Microbiol Biotechnol

October 2024

Synthetic Biology Research Center and the K-Biofoundry, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Republic of Korea.

The human microbiome, consisting of microorganisms that coexist symbiotically with the body, impacts health from birth. Alterations in gut microbiota driven by factors such as diet and medication can contribute to diseases beyond the gut. Synthetic biology has paved the way for engineered microbial therapeutics, presenting promising treatments for a variety of conditions.

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With the development of industry and modern manufacturing, nondegradable low-density polyethylene (LDPE) has been widely used, posing a rising environmental hazard to natural ecosystems and public health. In this study, we isolated a series of LDPE-degrading fungi from landfill sites and carried out LDPE degradation experiments by combining highly efficient degrading fungi in pairs. The results showed that the mixed microorganisms composed of Alternaria sp.

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Long-term acclimation to organic carbon enhances the production of loliolide from Scenedesmus deserticola.

Bioresour Technol

November 2024

Cell Factory Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Republic of Korea; Department of Environmental Biotechnology, KRIBB School of Biotechnology, University of Science & Technology (UST), Daejeon 34113, Republic of Korea; ASK LABS, KRIBB BVC Center 109, Daejeon 34141, Republic of Korea. Electronic address:

Article Synopsis
  • The study focuses on enhancing the productivity of Scenedesmus deserticola for commercial production of loliolide through long-term acclimation using glucose as an organic carbon source.
  • After a year of acclimation, a specific strain (S. deserticola HS4) showed at least a 2-fold increase in loliolide production and underwent further testing in larger cultivation setups.
  • The findings indicate that long-term acclimation can significantly improve the productivity and adaptability of microalgae, making them more viable for industrial applications.
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Microbead-Based Colorimetric and Portable Sensors for Polyphenol Detection.

ACS Omega

August 2024

Department of Biomaterials Science (BK21 FOUR Program), College of Natural Resources and Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang 50463, Republic of Korea.

Article Synopsis
  • Natural polyphenols in health supplements and drinks provide antioxidant and anti-inflammatory benefits, leading to increased consumer interest in accurately measuring their levels in beverages.
  • A new portable detection method using color-changing beads enables simple, quick quantification of polyphenols; users just dip the beads in the sample and take a photo for analysis.
  • This bead-based sensor offers superior detection limits compared to traditional assays and maintains its effectiveness even after long storage or environmental changes.
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Permissive lung neutrophils facilitate tuberculosis immunopathogenesis in male phagocyte NADPH oxidase-deficient mice.

PLoS Pathog

August 2024

Department of Microbiology, Institute for Immunology and Immunological Disease, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, South Korea.

NADPH oxidase 2 (NOX2) is an enzyme responsible for generating reactive oxygen species, primarily found in phagocytes. Chronic Granulomatous Disease (CGD), along with bacterial infections such as Mycobacterium tuberculosis (Mtb), is a representative NOX2-deficient X-linked disease characterized by uncontrolled inflammation. However, the precise roles of host-derived factors that induce infection-mediated hyperinflammation in NOX2-deficient condition remain incompletely understood.

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, a notorious phytopathogen, is responsible for causing bacterial wilt, leading to significant economic losses globally in many crops within the Solanaceae family. Despite various cultural and chemical control strategies, managing bacterial wilt remains a substantial challenge. This study demonstrates, for the first time, the effective use of plant-induced bacterial gene silencing against , facilitated by -mediated gene silencing, to control bacterial wilt symptoms in .

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Peroxiredoxin 1 modulates oxidative stress resistance and cell apoptosis through stemness in liver cancer under non-thermal plasma treatment.

Biochem Biophys Res Commun

December 2024

Stem Cell and Regenerative Biology Laboratory, College of Life Science & Biotechnology, Heilongjiang Bayi Agricultural University, Heilongjiang, Daqing, 163319, China. Electronic address:

The role of peroxiredoxin 1 (PRDX1), a crucial enzyme that reduces reactive oxygen and nitrogen species levels in HepG2 human hepatocellular carcinoma (HCC) cells, in the regulation of HCC cell stemness under oxidative stress and the underlying mechanisms remain largely unexplored. Here, we investigated the therapeutic potential of non-thermal plasma in targeting cancer stem cells (CSCs) in HCC, focusing on the mechanisms of resistance to oxidative stress and the role of PRDX1. By simulating oxidative stress conditions using the plasma-activated medium, we found that a reduction in PRDX1 levels resulted in a considerable increase in HepG2 cell apoptosis, suggesting that PRDX1 plays a key role in oxidative stress defense mechanisms in CSCs.

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The family Convolvulaceae comprises approximately 50-60 genera with approximately 1600-1700 species, exhibiting a rich diversity of morphological characteristics and occupying a broad range of ecological habitats. High-throughput sequencing identified a tentative new virus in the family Geminiviridae infecting Calystegia sepium var. japonica in South Korea.

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Climate change impacts on crop production: Insights from long-term observations in South Korea.

Heliyon

July 2024

Department of Bio-Environmental Chemistry, College of Agriculture and Life Sciences, Chungnam National University, Daejeon, Republic of Korea.

Climate change is an imminent threat, particularly affecting agricultural productivity, which relies heavily on weather conditions. Understanding the specific impacts of climate change on key crops is crucial for developing effective adaptation strategies to ensure food security. The growth patterns of onions and garlic were observed at over ten different locations in South Korea, and the yield data from the past 40 years were analyzed.

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Microcystis abundance is predictable through ambient bacterial communities: A data-oriented approach.

J Environ Manage

September 2024

Cell Factory Research Center, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea; Department of Environmental Biotechnology, KRIBB School of Biotechnology, Korea University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon, 34113, Republic of Korea. Electronic address:

The number of cyanobacterial harmful algal blooms (cyanoHABs) has increased, leading to the widespread development of prediction models for cyanoHABs. Although bacteria interact closely with cyanobacteria and directly affect cyanoHABs occurrence, related modeling studies have rarely utilized microbial community data compared to environmental data such as water quality. In this study, we built a machine learning model, the multilayer perceptron (MLP), for the prediction of Microcystis dynamics using both bacterial community and weekly water quality data from the Daechung Reservoir and Nakdong River, South Korea.

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Article Synopsis
  • Human nasal cavity samples were analyzed for the presence of microplastics.
  • Microplastics were found, with the most common types being polyethylene, polyester, acrylic polymer, and polypropylene.
  • More research is necessary to understand the clinical effects of microplastics on the human nasal cavity.
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  • The development of effective cell lines for therapeutic protein production is critical, but traditional glutamine-based selection methods have shortcomings in efficiency and flexibility.
  • Researchers created a new selection system called SiMPl-GS, which uses a split intein-mediated protein ligation approach to enhance cell survival in glutamine-free environments.
  • SiMPl-GS not only improves the selection of high-producing cells but also allows for the simultaneous selection of multiple plasmids, making the cell line development process faster and more efficient.
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