82 results match your criteria: "Shandong University School of Basic Medical Sciences[Affiliation]"

Ultra-early stage lower-grade gliomas: How can we define and differentiate these easily misdiagnosed gliomas through intraoperative molecular diagnosis.

CNS Neurosci Ther

October 2024

Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, China.

Article Synopsis
  • Some lower-grade gliomas (LGG) can be hard to differentiate from other conditions during surgery, leading to potential misdiagnosis; these challenging cases are defined as "ultra early stage lower-grade gliomas (UES-LGG)."
  • Researchers studied 11 cases diagnosed as "gliosis" or "inflammatory changes" that tested positive for a specific mutation (IDH), along with 35 LGG samples, to find ways to better identify UES-LGG during surgery.
  • Results indicated that while the average DNA concentration was similar between the two groups, the mutation detection thresholds differed significantly, suggesting that monitoring IDH mutations could help distinguish UES-LGG from other conditions in surgical settings.
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MFSD7C protects hemolysis-induced lung impairments by inhibiting ferroptosis.

Nat Commun

September 2024

Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education, Shandong University, Jinan, China.

Article Synopsis
  • Hemolysis is linked to lung injury and poor outcomes in diseases like malaria and sickle cell disease, but the specific mechanisms are not well understood.
  • Research shows that the protein MFSD7C protects the lungs from damage caused by hemolysis by inhibiting a cell death process known as ferroptosis.
  • In experiments, giving mice MFSD7C mRNA using nanoparticles reduced lung injury from hemolytic conditions, highlighting potential treatments for patients with related disorders.
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Objective: Baicalein, one of the most abundant flavonoids found in Chinese herb Georgi, exhibits pharmacological activities against various cancers. However, the precise pharmacological mechanism of baicalein in treating castration-resistant prostate cancer (CRPC) remains elusive. This study aimed to elucidate the potential mechanism of baicalein against CRPC through a combination of network pharmacology and experimental approaches, thereby providing new avenues for research in CRPC treatment.

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Intraoperative rapid molecular diagnosis aids glioma subtyping and guides precise surgical resection.

Ann Clin Transl Neurol

August 2024

Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.

Objective: The molecular era of glioma diagnosis and treatment has arrived, and a single rapid histopathology is no longer sufficient for surgery. This study sought to present an automatic integrated gene detection system (AIGS), which enables rapid intraoperative detection of IDH/TERTp mutations.

Methods: A total of 78 patients with gliomas were included in this study.

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Background: Numerous studies have investigated the association between CDH1 polymorphisms and gastric cancer (GC) risk. However, the results have been inconsistent and controversial. To further determine whether CDH1 polymorphisms increase the risk of GC, we conducted a meta-analysis by pooling the data.

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Purpose: 11β-Hydroxylase deficiency (11β-OHD) is the second leading cause of congenital adrenal hyperplasia (CAH), a rare autosomal recessive disease caused by mutations in the CYP11B1 gene. We previously reported the case of a male Chinese patient with typical 11β-OHD symptoms. Sanger sequencing revealed that the patient carried a splice-site mutation, c.

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Gastric cancer (GC) is one of the most common and deadly cancers worldwide. Early detection offers the best chance for curative treatment and reducing its mortality. However, the optimal population-based early screening for GC remains unmet.

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Background: Numerous studies have demonstrated long noncoding RNA (lncRNA) play an important role in the occurrence and progression of cancer, and single nucleotide polymorphisms (SNPs) located in lncRNA are considered to affect cancer suspensibility. Herein, a meta-analysis was carried out to better assess the relationship of H19 polymorphisms and cancer susceptibility.

Methods: A literature search was conducted through using PubMed, EMBASE, and Web of Science databases to obtain relevant publications before Aug 23, 2022.

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The E3 ligase TRIM31 regulates hematopoietic stem cell homeostasis and MLL-AF9 leukemia.

Haematologica

August 2023

Key Laboratory of Regenerative Medicine of Ministry of Education, Institute of Aging and Regenerative Medicine, Jinan University, Guangzhou.

Hematopoietic stem cells (HSC) are kept in a quiescent state to maintain their self-renewal capacity. Proper regulation of cyclin-dependent kinases (CDK) and cyclin proteins is critical for the maintenance of HSC homeostasis. Here, we found that the E3 ligase, TRIM31, regulates HSC homeostasis and leukemia through the accumulation of CDK8.

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Background: With the advent of the molecular era, the diagnosis and treatment systems of glioma have also changed. A single histological type cannot be used for prognosis grade. Only by combining molecular diagnosis can precision medicine be realized.

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G Protein Subunit Gamma 7 (GNG7), an important regulator of cell proliferation and cell apoptosis, has been reported to be downregulated in a variety of tumors including lung adenocarcinoma (LUAD). However, the correlation between low expression of GNG7 and prognosis of LUAD as well as the immune infiltrates of LUAD remains unclear. The samples were obtained from The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO).

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The E3 ubiquitin ligase MG53 inhibits hepatocellular carcinoma by targeting RAC1 signaling.

Oncogenesis

July 2022

Shandong Provincial Key Laboratory of Infection & Immunology, Shandong Provincial Clinical Research Center for Immune Diseases and Gout, Department of Immunology, School of Basic Medical Sciences, Cheeloo college of Medicine, Shandong University, Jinan, 250012, China.

Article Synopsis
  • * The study reveals that MG53, an E3 ubiquitin ligase, inhibits RAC1 by promoting its ubiquitination at a specific lysine residue, thereby reducing its activity in HCC cells.
  • * By suppressing RAC1 and its associated signaling pathways, MG53 not only curtails malignant behaviors in HCC but also enhances the effectiveness of the treatment drug sorafenib, suggesting its potential as a therapeutic target.
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Sustained inflammatory responses delay wound repair in diabetic skin. The stimulator of interferon genes (STING) plays a vital role in the innate immune responses. However, its function in diabetic skin wound repair, and the underlying mechanism remains unclear.

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Background: Glioblastoma stem cells (GSCs) and their interplay with tumor-associated macrophages (TAMs) are responsible for malignant growth and tumor recurrence of glioblastoma multiforme (GBM), but the underlying mechanisms are largely unknown.

Methods: Cell viability, stemness, migration, and invasion were measured in GSCs after the knockdown of upstream stimulating factor 1 (USF1). Luciferase assay and chromatin immunoprecipitation qPCR were performed to determine the regulation of CD90 by USF1.

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Diabetes mellitus is a metabolic disease closely related to a disordered gut microbiome. Diabetic patients usually suffer from various metabolic disorders, such as increased serum uric acid levels. Although serum uric acid levels depend partially on intestine excretion, the relationship between uric acid and gut microbiome in diabetic patients remains unknown.

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Reactive oxygen species (ROS) serve as critical signals in various cellular processes. Excessive ROS cause cell death or senescence and mediates the therapeutic effect of many cancer drugs. Recent studies showed that ROS increasingly accumulate during G2/M arrest, the underlying mechanism, however, has not been fully elucidated.

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The metastatic or recurrent potential of localized human papillomavirus-associated endocervical adenocarcinoma (HPVA EAC) is difficult to predict, especially based upon biopsy alone. Recent analyses of small cohorts indicate that high tumor nuclear grade (TNG) and the presence of necrotic tumor debris (NTD) from HPVA EACs in cervical biopsy specimens are highly predictive of nodal metastasis (NM). In the present study, we aimed to investigate how reliably tumoral morphologic features from cervical biopsy specimens predict NM or tumor recurrence (TR) and patient outcomes in a large cohort of endocervical adenocarcinoma patients.

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IL13Rα1 prevents a castration resistant phenotype of prostate cancer by targeting hexokinase 2 for ubiquitin-mediated degradation.

Cancer Biol Med

October 2021

Biomedical Sciences College & Shandong Medicinal Biotechnology Centre, Key Lab for Biotech-Drugs of National Health Commission, Key Lab for Rare & Uncommon Diseases of Shandong Province, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250002, China.

Objective: Androgen deprivation therapy (ADT) is still the principal treatment option for prostate cancer (PCa). In addition to reactivation of androgen receptor signaling, the resistance of PCa to apoptosis during ADT also contributes to castration resistant PCa (CRPC). A previous study reported that gene transfer of IL-13Rα2 into PCa cells sensitized the cells to the IL-13R-targeted cytotoxin IL13Rα1, leading to apoptosis.

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Deubiquitinating enzymes (DUBs) serve to maintain cellular homeostasis via protein ubiquitination and exert diverse regulatory functions in cancers and other diseases. Much progress has been made in characterizing biological roles of DUBs over the decades, yet the specific functions of many subclass members remain largely unexplored. It was not until recent years that the role of ubiquitin-specific-processing protease 35 (USP35) in cancers began to be understood.

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(1) Background: Accurate preoperative identification of medullary thyroid carcinoma (MTC) is challenging due to a spectrum of cytomorphologic features. However, there is a scarcity of studies describing the cytomorphologic features as seen on fine-needle aspiration (FNA) smears prepared using different staining methods. (2) Methods: We performed a retrospective study on MTC cases with available FNA slides from 13 hospitals distributed across 8 Asia-Pacific countries.

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Traumatic spinal cord injury (SCI) often causes micturition dysfunction. We recently discovered a low level of spinally-derived dopamine (DA) that regulates recovered bladder and sphincter reflexes in SCI female rats. Considering substantial sexual dimorphic features in the lower urinary tract, it is unknown if the DA-ergic mechanisms act in the male.

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Autophagy Contributes to the Maintenance of Genomic Integrity by Reducing Oxidative Stress.

Oxid Med Cell Longev

May 2021

State Key Laboratory of Radiation Medicine and Protection, Institutes for Translational Medicine, Soochow University, Suzhou, Jiangsu 215123, China.

Autophagy has been well documented to play an important role in maintaining genomic stability. However, in addition to directly engulfing and digesting the damaged organelles and chromatin fragments, autophagy can affect many cellular processes including DNA damage response, regulation of redox homeostasis, and cell division; it remains to be determined to what extent each of those processes contributes to the maintenance of genomic stability. We here examined the role of autophagy-dependent redox regulation in the maintenance of genomic stability in two cancer cell lines (HT1080 and U2OS) and mesenchymal stem cells (MSCs) using micronuclei MN, also referred to as cytoplasmic chromatin fragments, as a marker.

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Cytologic diagnosis of medullary thyroid carcinoma in the Asia-Pacific region.

Diagn Cytopathol

January 2021

Department of Pathology and Thyroid Disease Center, Izumi City General Hospital, Izumi, Osaka, Japan.

Background: The accurate preoperative identification of medullary thyroid carcinoma (MTC) is challenging due to the rarity of tumor and variable cytologic appearance. The Asian experience with diagnosing MTC by fine-needle aspiration (FNA) was scarcely reported.

Methods: Cases of MTC with available FNA slides were enrolled from 13 hospitals representing 8 Asia-Pacific countries.

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