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Li S, Mao L, Song L, Xia X, Wang Z, Cheng Y, Lai J, Tang X, Chen X. Extracellular Vesicles Derived from Glioma Stem Cells Affect Glycometabolic Reprogramming of Glioma Cells Through the miR-10b-5p/PTEN/PI3K/Akt Pathway. Stem Cell Rev Rep 2024; 20:779-796. [PMID: 38294721 DOI: 10.1007/s12015-024-10677-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/08/2024] [Indexed: 02/01/2024]
Abstract
OBJECTIVE Glioma is one of the most prevalently diagnosed types of primary malignant brain tumors. Glioma stem cells (GSCs) are crucial in glioma recurrence. This study aims to elucidate the mechanism by which extracellular vehicles (EVs) derived from GSCs modulate glycometabolic reprogramming in glioma. METHODS Xenograft mouse models and cell models of glioma were established and treated with GSC-EVs. Additionally, levels and activities of PFK1, LDHA, and FASN were assessed to evaluate the effect of GSC-EVs on glycometabolic reprogramming in glioma. Glioma cell proliferation, invasion, and migration were evaluated using MTT, EdU, Colony formation, and Transwell assays. miR-10b-5p expression was determined, with its target gene PTEN and downstream pathway PI3K/Akt evaluated. The involvement of miR-10b-5p and the PI3K/Akt pathway in the effect of GSC-EVs on glycometabolic reprogramming was tested through joint experiments. RESULTS GSC-EVs facilitated glycometabolic reprogramming in glioma mice, along with enhancing glucose uptake, lactate level, and adenosine monophosphate-to-adenosine triphosphate ratio. Moreover, GSC-EV treatment potentiated glioma cell proliferation, invasion, and migration, reinforced cell resistance to temozolomide, and raised levels and activities of PFK1, LDHA, and FASN. miR-10b-5p was highly-expressed in GSC-EV-treated glioma cells while being carried into glioma cells by GSC-EVs. miR-10b-5p targeted PTEN and activated the PI3K/Akt pathway, hence stimulating glycometabolic reprogramming. CONCLUSION GSC-EVs target PTEN and activate the PI3K/Akt pathway through carrying miR-10b-5p, subsequently accelerating glycometabolic reprogramming in glioma, which might provide new insights into glioma treatment.
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Affiliation(s)
- Shun Li
- Department of Neurosurgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, 637000, Sichuan, China.
- Neurosurgical Research Center, Affiliated Hospital of North Sichuan Medical College, Nanchong, 637000, Sichuan, China.
- Department of Neurosurgery, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, Guangdong, China.
| | - Lifang Mao
- Department of Neurosurgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, 637000, Sichuan, China
| | - Lvmeng Song
- Department of Neurosurgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, 637000, Sichuan, China
| | - Xiaochao Xia
- Department of Neurosurgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, 637000, Sichuan, China
| | - Zihao Wang
- Department of Neurosurgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, 637000, Sichuan, China
| | - Yinchuan Cheng
- Department of Neurosurgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, 637000, Sichuan, China
| | - Jinqing Lai
- Department of Neurosurgery, The Second Affiliated Hospital, Fujian Medical University, Quanzhou, 362000, Fujian, China
| | - Xiaoping Tang
- Department of Neurosurgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, 637000, Sichuan, China.
- Neurosurgical Research Center, Affiliated Hospital of North Sichuan Medical College, Nanchong, 637000, Sichuan, China.
| | - Xiangrong Chen
- Department of Neurosurgery, The Second Affiliated Hospital, Fujian Medical University, Quanzhou, 362000, Fujian, China.
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Zhang HW, Tan HP, Feng QX. Low Back Pain in Resident Doctors with Standardized Training in China: A Cross-Sectional Study. Risk Manag Healthc Policy 2023; 16:2459-2468. [PMID: 38024497 PMCID: PMC10660694 DOI: 10.2147/rmhp.s437810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 11/08/2023] [Indexed: 12/01/2023] Open
Abstract
Background Low back pain (LBP) is a prevalent occupational disease with high morbidity among healthcare workers. Since the implementation of standardized residency training in China in 2015, the training intensity has significantly increased, which may lead to a higher incidence of LBP. However, epidemiological studies on LBP among resident doctors with standardized training remain scarce. Objective To investigate the prevalence and associated factors of LBP among resident doctors with standardized training in a tertiary hospital in China. Methods A cross-sectional study was conducted using self-administered questionnaires to collect information on demographics, lifestyle factors, work-related factors, and LBP from 345 resident doctors. Descriptive statistics were used to analyze the prevalence of LBP. Logistic regression analysis was performed to identify factors associated with LBP. Results Among 345 participants, the 1-year prevalence of LBP was 75.9%. Multivariable analysis revealed that physical exercise, weekly working hours, and prolonged sitting were independent risk factors for LBP. Conclusion The prevalence of LBP among resident doctors was high. Promoting physical exercise, controlling working hours, and improving sitting posture may help prevent LBP. The study was limited by its cross-sectional design and self-reported data. Future studies should use longitudinal designs, objective measures, and larger and more representative samples to further explore the epidemiology and etiology of LBP among resident doctors with standardized training.
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Affiliation(s)
- Han-Wen Zhang
- Department of Pain Management, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan Province, People’s Republic of China
| | - Hong-Ping Tan
- Department of Pain Management, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan Province, People’s Republic of China
| | - Qiu-Xia Feng
- Outpatient Department, Nanchong Psychosomatic Hospital, Nanchong, Sichuan Province, People’s Republic of China
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Xiao L, Zhang T, Zheng K, Xiao Q, Zhang W, Zhang D, Wu D, He C, Zhou Y, Liu Y. Knockdown of Secernin 1 inhibit cell invasion and migration by activating the TGF-β/Smad3 pathway in oral squamous cell carcinomas. Sci Rep 2023; 13:14922. [PMID: 37691034 PMCID: PMC10493221 DOI: 10.1038/s41598-023-41504-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Accepted: 08/28/2023] [Indexed: 09/12/2023] Open
Abstract
Secernin-1 (SCRN1) is a regulator of exocytosis in mast cells. Recently, SCRN1 was reported to be correlated with the prognosis of colorectal cancer and gastric cancer, but its functional effects on oral squamous cell carcinoma (OSCC) remain unclear. Our aim was to explore the expression pattern and the migration and invasion effects of the newly identified SCRN1 in OSCC. Western blotting (WB) was performed to measure SCRN1 expression in human OSCC tissue samples and OSCC cell lines. The effects of SCRN1 on OSCC cell proliferation, invasion and migration were analyzed by cell counting kit-8 and Transwell assays. The expression levels of TGF-β, Smad3 and phosphorylated Smad3 (p-Smad3) were measured by WB. The secretion of matrix metalloproteinase (MMP)-2 and MMP-9 was determined by the enzyme-linked immunosorbent assay. The expression of SCRN1 was significantly elevated in OSCC tissues and cell lines. SCRN1 knockdown reduced the expression of TGF-β and p-Smad3 in OSCC cells. TGF-β stimulation promoted proliferation, invasion and migration and enhanced the expression of p-Smad3 and the secretion of MMP9 in SCRN1-knockdown OSCC cell lines. Our study demonstrated that SCRN1 is upregulated in OSCC. Further analyses demonstrated that SCRN1 promotes the proliferation, invasion and migration of OSCC cells via TGF-β/Smad3 signaling.
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Affiliation(s)
- Li Xiao
- Affiliated Hospital of North Sichuan Medical College, Department of Stomatology, North Sichuan Medical College, Nanchong, China
- Department of Stomatology, Nan Chong Central Hospital, Second Clinical Medical College of North Sichuan Medical College, Nanchong, China
| | - Ting Zhang
- Affiliated Hospital of North Sichuan Medical College, Department of Stomatology, North Sichuan Medical College, Nanchong, China
| | - Kaiyue Zheng
- Affiliated Hospital of North Sichuan Medical College, Department of Stomatology, North Sichuan Medical College, Nanchong, China
| | - Qian Xiao
- Affiliated Hospital of North Sichuan Medical College, Department of Stomatology, North Sichuan Medical College, Nanchong, China
| | - Weifang Zhang
- Affiliated Hospital of North Sichuan Medical College, Department of Stomatology, North Sichuan Medical College, Nanchong, China
| | - Dandan Zhang
- Affiliated Hospital of North Sichuan Medical College, Department of Stomatology, North Sichuan Medical College, Nanchong, China
| | - Dengxun Wu
- Affiliated Hospital of North Sichuan Medical College, Department of Stomatology, North Sichuan Medical College, Nanchong, China
| | - Chanjuan He
- Affiliated Hospital of North Sichuan Medical College, Department of Stomatology, North Sichuan Medical College, Nanchong, China
| | - Yifei Zhou
- Department of Stomatology, Lang Zhong People's Hospital, Langzhong, China.
| | - Ying Liu
- Affiliated Hospital of North Sichuan Medical College, Department of Stomatology, North Sichuan Medical College, Nanchong, China.
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Li J, Yang R, Wang S, Shen Z, Wu B, Ren Y, Ke S, Jiang G. Bioinformatics-based analysis of mechanistic differences in vascular endothelial injury ischemic stroke induced by atrial fibrillation and atherosclerosis. J Neurochem 2023. [PMID: 37263975 DOI: 10.1111/jnc.15849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Revised: 03/14/2014] [Accepted: 05/23/2012] [Indexed: 06/03/2023]
Abstract
Studies of the intracranial vasculature in patients with ischemic stroke caused by atherosclerosis (AS) and cardiac embolism have revealed significantly different degrees of AS, plaque, and vascular stenosis. And the endothelium has a great influence on the vasculature throughout the circulatory system, especially in the brain. This study aimed to investigate the mechanistic differences in endothelial injury between atrial fibrillation (AF)- and AS-induced ischemic stroke. All target genes of AF, AS, and the vascular endothelial cell (VC) were obtained from the GeneCards database; the differential genes of AF and AS separately associated with the VC were established by a Venn diagram. A protein-protein interaction network was created, and Gene Ontology and Kyoto Encyclopedia of Genes and Genomes databases were used to perform genomic enrichment and functional enrichment analysis. Hub genes were selected by Maximal Clique Centrality algorithm ranking and correlation linkage in the STRING database, and then, clinical serum samples were used to verify the quantitative expressions in the AF, AF stroke, AS, and AS stroke groups. Fifty-five AF-VC-related genes and ninety-three AS-VC-related genes were screened, which differed in biological function, cellular composition, and molecular function. The genes correlation between AF and vascular endothelial cells (VCs) was KRAS and PTPN11, and those correlation between AS and VCs was IL-4, IFNG, IL-17A, and CSF-2. IL-4 and CSF-2 may be relevant proteins involved in the differences in stroke mechanisms between AF and AS, and they may act by further influencing the function of their downstream cells. This study provides a preliminary theoretical basis for investigating the differences in mechanisms of endothelial injury between AF- and AS-induced ischemic stroke.
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Affiliation(s)
- Jia Li
- Department of Neurology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
- Institute of Neurological Diseases, North Sichuan Medical College, Nanchong, China
| | - Rui Yang
- Department of Neurology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
- Institute of Neurological Diseases, North Sichuan Medical College, Nanchong, China
| | - Shenglin Wang
- Department of Neurology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
- Institute of Neurological Diseases, North Sichuan Medical College, Nanchong, China
| | - Ziyi Shen
- Department of Neurology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
- Institute of Neurological Diseases, North Sichuan Medical College, Nanchong, China
| | - Bowen Wu
- Department of Neurology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
- Institute of Neurological Diseases, North Sichuan Medical College, Nanchong, China
| | - Yu Ren
- Department of Neurology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
- Institute of Neurological Diseases, North Sichuan Medical College, Nanchong, China
| | - Sha Ke
- Department of Neurology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
- Institute of Neurological Diseases, North Sichuan Medical College, Nanchong, China
| | - Guohui Jiang
- Department of Neurology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
- Institute of Neurological Diseases, North Sichuan Medical College, Nanchong, China
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