Songhe Guo

ORCID: 0000-0003-3292-1114
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About
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Research Areas
  • Gut microbiota and health
  • Clostridium difficile and Clostridium perfringens research
  • Extracellular vesicles in disease
  • Advanced biosensing and bioanalysis techniques
  • Streptococcal Infections and Treatments
  • Immune cells in cancer
  • Colorectal Cancer Screening and Detection
  • Microscopic Colitis
  • Plant-based Medicinal Research
  • RNA modifications and cancer
  • Cancer-related gene regulation
  • Nanowire Synthesis and Applications
  • Liver Disease Diagnosis and Treatment
  • Cancer Research and Treatments
  • Tryptophan and brain disorders
  • Mycobacterium research and diagnosis
  • Epigenetics and DNA Methylation
  • Nosocomial Infections in ICU
  • Gastrointestinal disorders and treatments
  • RNA Interference and Gene Delivery
  • Hepatitis B Virus Studies
  • MicroRNA in disease regulation
  • Metabolomics and Mass Spectrometry Studies
  • Semiconductor materials and devices
  • Diphtheria, Corynebacterium, and Tetanus

Sun Yat-sen University
2016-2024

Sun Yat-sen University Cancer Center
2022-2024

State Key Laboratory of Oncology in South China
2022

Inner Mongolia Autonomous Region Hospital of Traditional Chinese Medicine
2012

Objective Exosomes released from tumour cells are packed with unique RNA and protein cargo, they emerging as an important mediator in the communication network that promotes progression. The facultative intracellular bacterium Fusobacterium nucleatum (Fn) is colorectal cancer (CRC)-associated bacterium. To date, function of exosomes Fn-infected CRC has not been explored. Design were isolated by sequential differential centrifugation verified transmission electron microscopy, NanoSight...

10.1136/gutjnl-2020-321187 article EN Gut 2020-11-10

Gut microbial dysbiosis contributes to the development of colorectal cancer (CRC). We evaluated utility fecal bacterial biomarker candidates identified by our 16S rDNA sequencing analysis for CRC diagnosis.We measured relative abundance Fusobacterium nucleatum (Fn), Faecalibacterium prausnitzii (Fp), Bifidobacterium (Bb), and Lactobacillus (Lb) quantitative PCR in samples from 2 cohorts 903 individuals. validated diagnostic performance these ratios investigated antagonistic effect Fn against...

10.1373/clinchem.2018.289728 article EN Clinical Chemistry 2018-06-18

Fusobacterium nucleatum (F. nucleatum, Fn) is associated with the colorectal cancer (CRC). Fn-infection could induce significant levels of serum Fn-specific antibodies in human and mice. The objective this study was to identify that elicit a humoral response patients CRC evaluate diagnostic performance anti-Fn antibodies. In work, we showed mean absorbance value anti-Fn-IgA -IgG group were significantly higher than those benign colon disease healthy control (P < 0.001). sensitivity...

10.1038/srep33440 article EN cc-by Scientific Reports 2016-09-28

The tumor-associated microbiota plays a vital role in cancer development. Accumulating evidence shows that Fusobacterium nucleatum (Fn) participates the progression of multiple tumor types. However, underlying mechanisms remain unclear. This study examined expression methyltransferase-like protein 3 (METTL3) during Fn infection and elucidated function pathway Fn-induced m6A methylation esophageal squamous cell carcinoma (ESCC). abundance patient tissues was determined by qPCR. Western blot,...

10.1016/j.jare.2023.08.014 article EN cc-by-nc-nd Journal of Advanced Research 2023-08-22

Abstract Fusobacterium nucleatum ( Fn ) is a tumor-associated obligate anaerobic bacterium, which has role in the progression of colorectal cancer (CRC). can invade and promote colon epithelial cells proliferation. However, how survives proliferates its host remains largely unknown. In this study, we aimed to determine molecular mechanisms underlying morphology, survival, proliferation THP-1-derived macrophages (dTHP1). For first time, found that facultative intracellular bacterium survive...

10.1038/s41419-018-0389-0 article EN cc-by Cell Death and Disease 2018-03-02

Tumor-derived extracellular vesicles (TEVs) have emerged as promising sources of diagnostic and prognostic biomarkers for nasopharyngeal carcinoma (NPC). However, the lack high-sensitivity analytic methods ultratrace membrane proteins on TEVs hamper their clinical application TEVs. Herein, by combining aptamers that specifically bind to protein targets TEVs, PCR-based exponential amplification CRISPR/Cas12a real-time DNA detection, we developed a novel technique, termed aptamer-CRISPR/Cas12a...

10.1016/j.talanta.2020.121670 article EN cc-by-nc-nd Talanta 2020-09-17

Fusobacterium nucleatum (Fn) is a critical colorectal cancer (CRC)-associated bacterium. DNA hunger/stationary phase protective proteins (Dps) are bacterial ferritins that protect from oxidative stress. However, little known about the regulatory roles of Fn-Dps towards host cellular functions. Here, we identified culture supernatant Fn by mass spectrometry, and prepared recombinant protein. We show novel virulence protein Fn, Fn-Dps, which lyses disrupts erythrocytes competition for iron...

10.1371/journal.ppat.1011096 article EN cc-by PLoS Pathogens 2023-01-24

Abstract Programmed cell death receptor 1 (PD‐L1) protein on exosomes (exosomal PD‐L1) is one of the most promising biomarkers for cancer immunotherapy monitoring. However, current approaches exosomal PD‐L1 detection are poorly sensitive, laborious, and time‐consuming. Here, a new method, named Aptamer‐RPA‐TMA‐Cas13a Assay (ARTCA) established, which enables to be detected directly in serum with lower limit 10 particles mL −1 . Mechanistically, using DNA aptamer specifically binding PD‐L1,...

10.1002/adtp.202000093 article EN Advanced Therapeutics 2020-07-20

Methyltransferase-like 3 (METTL3) is an RNA methyltransferase mediating N6 methyladenosine (m6A) modification. Its role in cancer pathogenesis and progression has attracted increasing attention. However, the immunological role, possible immune mechanism, clinical significance of METTL3 esophageal squamous cell carcinoma (ESCC) remain to be confirmed. The Tumor Genome Atlas (TCGA) provided transcriptome sequencing data for this study (162 tumor tissue samples 11 normal samples), while...

10.3389/fonc.2022.824190 article EN cc-by Frontiers in Oncology 2022-04-27

The intracellular bacterium Fusobacterium nucleatum (Fn) mediates tumorigenesis and progression in colorectal cancer (CRC). However, the origin of intratumoral Fn role Fn-infected immunocytes tumor microenvironment remain unclear. Here, we observed that neutrophils/macrophages (PMNs/MΦs), especially PMNs, accumulate tissues fecal abundance correlates positively with an blood PD-L1+ PMNs CRC patients. Moreover, accumulates tumor-bearing mice via intragingival infection intravenous injection....

10.1080/19490976.2024.2442037 article EN cc-by-nc Gut Microbes 2024-12-22

Fusobacterium nucleatum (Fn) is an important tumour-associated bacterium in colorectal cancer (CRC). The antioxidant protein alkyl hydroperoxide reductase subunit C (AhpC) can induce strong antibacterial immune response during various pathogen infections. Our study aimed to evaluate the efficacy of Fn-AhpC as a candidate vaccine. In this work, by western blot analysis, we showed that recombinant could be recognized specifically antibodies present sera CRC patients; using mouse Fn-infection...

10.1038/s41598-017-11127-x article EN cc-by Scientific Reports 2017-08-30

Background and Aims: Intestinal dysbiosis is implicated in the pathogenesis of Crohn's disease (CD). We evaluated fecal sera microbial markers for clinical use detecting CD. Methods: Fecal samples from 346 Asian subjects were collected, including 95 patients with CD, 81 ulcerative colitis (UC), 65 irritable bowel syndrome (IBS), 105 healthy (HS). Microbial indicators Fusobacterium nucleatum (Fn), Faecalibacterium prausnitzii (Fp) Escherichia coli (E. coli) identified based on a review...

10.3389/fmicb.2019.01306 article EN cc-by Frontiers in Microbiology 2019-06-12

Programmed cell death receptor 1 (PD-L1) protein on exosomes (exosomal PD-L1) is one of the most promising biomarkers for cancer immunotherapy monitoring. However, current approaches exosomal PD-L1 detection are poorly sensitive, laborious, and time-consuming. Here, a new method, named Aptamer-RPA-TMA-Cas13a Assay (ARTCA) established, which enables to be detected directly in serum with lower limit 10 particles mL−1. Mechanistically, using DNA aptamer specifically binding PD-L1, amplified...

10.54730/abm.2021.030502 article EN Advanced Biomedicine 2021-10-25

Background: Fusobacterium nucleatum (Fn) is a critical colorectal cancer (CRC)-associated bacterium. DNA hunger/stationary phase protective proteins (Dps) are bacterial ferritins that protect from oxidative stress. However, little known regarding the host cell responses to Dps.Methods: Fn-Dps was identified culture supernatant of Fn by mass spectrometry. The pET28a-Fn-Dps plasmid constructed prepare recombinant protein. In vitro effect on erythrocytes determined count with hemocytometer....

10.2139/ssrn.4174458 article EN SSRN Electronic Journal 2022-01-01
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