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Yang X, Zhou Y, Yu T, Li K, Xu S. TAN (tannic acid) inhibits BPA-induced pyroptosis of L8824 (grass carp hepatocytes) by regulating PTEN/PI3K/AKT pathway. Fish Shellfish Immunol 2024; 146:109384. [PMID: 38246267 DOI: 10.1016/j.fsi.2024.109384] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 01/13/2024] [Accepted: 01/15/2024] [Indexed: 01/23/2024]
Abstract
Bisphenol A (BPA) and its analogues are still one of the most important substances that pollute aquatic systems and pose a threat to aquatic organisms. Tannic acid (TAN) is a kind of glycosyl compound, which has the functions of anti-oxidation, anti-inflammation and anti-apoptosis. However, it is unknown if BPA can regulate PTEN/PI3K/AKT pathway to induce pyroptosis of grass carp hepatocytes (L8824) and the antagonistic effect of tannic acid (TAN) through oxidative stress. Therefore, we established the grass carp hepatocytes (L8824) cell model treated with BPA. The oxidative stress indexes (SOD, CAT, GSH, H2O2 and T-AOC) were detected by oxidative stress kit, mRNA and protein expression of associated genes were examined using qRT-PCR and western blotting. The results showed that BPA treatment increased the content of hydrogen peroxide and decreased the activities of antioxidant enzymes and antioxidants (SOD, CAT, GSH, and T-AOC) in L8824 cells. We also found that PTEN/PI3K/AKT pathway was activated dramatically and the expression of pyroptosis-related genes (GSDMD, NLRP3, Caspase1, ASC and IL-1β) was increased significantly. In addition, TAN could significantly reduce the toxicity of BPA on L8824 cells. After the addition of PTEN specific inhibitor SF1670, the activation of PTEN/PI3K/AKT pathway decreased by BPA was inhibited and the expression of scorch related genes was decreased. On the whole, TAN inhibits BPA-induced pyroptosis of L8824 by modulating the PTEN/PI3K/AKT pathway. The present study provides a novel perspective for toxicological mechanism of BPA, and new insights into the detoxification mechanism of TAN.
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Affiliation(s)
- Xuejiao Yang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Yuanxin Zhou
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Tingting Yu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Ke Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Shiwen Xu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China; Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China.
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2
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Liang W, Liu M, Su Y, Wen Y, Wang L, Shan J, Zhao J, Xie K, Wang J. Spinster homolog 2 reduces malignancies of glioblastoma via PTEN/PI3K/AKT pathway. IUBMB Life 2024; 76:140-160. [PMID: 37728571 DOI: 10.1002/iub.2785] [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: 08/07/2023] [Accepted: 09/01/2023] [Indexed: 09/21/2023]
Abstract
The molecular mechanisms of glioblastoma (GBM) are unclear, and the prognosis is poor. Spinster homolog 2 (SPNS2) is reportedly involved in pathological processes such as immune response, vascular development, and cancer. However, the biological function and molecular role of SPNS2 in GBM are unclear. SPNS2 is aberrantly low expressed in glioma. Survival curves, risk scores, prognostic nomograms, and univariate and multifactorial Cox regression analyses showed that SPNS2 is an independent prognostic indicator significantly associated with glioma progression and prognosis. Cell function assays and in vivo xenograft transplantation were performed that downregulation of SPNS2 promoted GBM cell growth, migration, invasion, epithelial-mesenchymal transition (EMT), anti-apoptosis, drug resistance, and stemness, while overexpression of SPNS2 had the opposite effect. Meanwhile, the functional enrichment and signaling pathways of SPNS2 in the Cancer Genome Atlas (TCGA), Chinese Glioma Genome Atlas (CGGA), and RNA sequencing were analyzed by Gene ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG), and Gene set enrichment analysis (GSEA). The above results were related to the inhibition of the PTEN/PI3K/AKT pathway by SPNS2. In addition, we predicted that SPNS2 is closely associated with immune infiltration in the tumor microenvironment by four immune algorithms, ESTIMATE, TIMER, CIBERSORT, and QUANTISEQ. In particular, SPNS2 was negatively correlated with the infiltration of most immune cells, immunomodulators, and chemokines. Finally, single-cell sequencing analysis also revealed that SPNS2 was remarkably correlated with macrophages, and downregulation of SPNS2 promotes the expression of M2-like macrophages. This study provides new evidence that SPNS2 inhibits malignant progression, stemness, and immune infiltration of GBM cells through PTEN/PI3K/AKT pathway. SPNS2 may become a new diagnostic indicator and potential immunotherapeutic target for glioma.
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Affiliation(s)
- Weiye Liang
- Department of Neurobiology, School of Medicine, South China University of Technology, Guangzhou, China
| | - Mingkai Liu
- Department of Neurobiology, School of Medicine, South China University of Technology, Guangzhou, China
| | - Yuling Su
- Center for Pancreatic Cancer Research, School of Medicine, South China University of Technology, Guangzhou, China
| | - Yulin Wen
- CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Lili Wang
- Department of Pathology, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Jiajie Shan
- Department of Neurobiology, School of Medicine, South China University of Technology, Guangzhou, China
| | - Jie Zhao
- Department of Neurobiology, School of Medicine, South China University of Technology, Guangzhou, China
| | - Keping Xie
- Center for Pancreatic Cancer Research, School of Medicine, South China University of Technology, Guangzhou, China
| | - Jian Wang
- Department of Neurobiology, School of Medicine, South China University of Technology, Guangzhou, China
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Kim PY, Leung CT. Therapeutic potentials and challenges of cytostatic persister cancer cells. Oncotarget 2023; 14:944-945. [PMID: 38039406 PMCID: PMC10691818 DOI: 10.18632/oncotarget.28488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Indexed: 12/03/2023] Open
Affiliation(s)
| | - Cheuk T. Leung
- Correspondence to:Cheuk T. Leung, Department of Pharmacology, Masonic Cancer Center, University of Minnesota Medical School, Minneapolis, MN 55455, USA email
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Wang S, Wu H, Shi X, Wang Y, Xu S. Polystyrene microplastics with different sizes induce the apoptosis and necroptosis in liver through the PTEN/PI3K/AKT/autophagy axis. Sci Total Environ 2023; 899:165461. [PMID: 37451460 DOI: 10.1016/j.scitotenv.2023.165461] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 07/01/2023] [Accepted: 07/09/2023] [Indexed: 07/18/2023]
Abstract
The production of plastics worldwide has been instrumental in the progress of modern society, while the increasing accumulation of plastics castoff in oceans, soils and anywhere else has become a major pressure source on environmental sustainability and animal health. Meanwhile, from a biological perspective, our understanding of the toxicological fingerprints of plastics, especially microplastics (MPs), is still poor. Here, we reported a phenomenon of hepatotoxicity dominated by MPs in the form of polystyrene (PS), was observed in mice model systems and cellular assays. Apoptosis and necroptosis related to the size of particles were seen upon PS-MPs introduction, as revealed by transmission electron microscopy, fluorescence microscopy, flow cytometry, and quantitative analysis of signaling pathways in vivo and vitro. Collectively, the current study demonstrated that the levels of liver cell injury caused by PS-MPs were negatively correlated with the particle diameters. Small-sized particles (1-10 μm) induced cell death primarily as necroptosis whereas the large-sized particles (50-100 μm) mainly induced apoptosis, which was directly accomplished by PTEN/PI3K/AKT signaling axis and its targeted autophagy flux. More interestingly, inhibition of autophagy not only alleviated PS-MPs-triggered cell death, but also changed the form of death injury to a certain extent. This uncovered crosstalk relationship opens up a new avenue for investigating the biological and toxicological effects of MPs, and may provide important insights for preventing and limiting of health hazards from MPs.
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Affiliation(s)
- Shengchen Wang
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225000, PR China; College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Hao Wu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Xu Shi
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Yue Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Shiwen Xu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China.
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Wu H, Pei H, Liu J, Zeng J, Liu S, Chen W, He Z, Du R. Correction for: Protective effect of total saponins of ginseng stems and leaves (GSLS) on chlorpyrifos-induced brain toxicity in mice through the PTEN/PI3K/AKT axis. Aging (Albany NY) 2023; 15:7853-7854. [PMID: 37581875 PMCID: PMC10457056 DOI: 10.18632/aging.204951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 08/08/2023] [Indexed: 08/16/2023]
Affiliation(s)
- Hong Wu
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
| | - Hongyan Pei
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
| | - Jinze Liu
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
| | - Jianning Zeng
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
| | - Silu Liu
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
| | - Weijia Chen
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
| | - Zhongmei He
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
| | - Rui Du
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
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Sun C, Wen K, Zhang B, Dong Y, Chen C, Neo SY, Leng B, Gao TT, Wu J. DSC2 suppresses the growth of gastric cancer through the inhibition of nuclear translocation of γ-catenin and PTEN/PI3K/AKT signaling pathway. Aging (Albany NY) 2023; 15:6380-6399. [PMID: 37421607 PMCID: PMC10373986 DOI: 10.18632/aging.204858] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 06/15/2023] [Indexed: 07/10/2023]
Abstract
BACKGROUND Globally, gastric cancer (GC) is still a major leading cause of cancer-associated deaths. Downregulated desmocollin2 (DSC2) is considered to be closely related to tumor progression. However, the underlying mechanisms of DSC2 in GC progression require further exploration. METHOD We initially constructed different GC cells based on DSC2 contents, established the mouse tumor xenografts, and subsequently performed clonal formation, MTT, Caspase-3 activity, and sperm DNA fragmentation assays to detect the functions of DSC2 in GC growth. Subsequently, we performed western blot, Co-IP, and immunofluorescence assays to investigate the underlying mechanisms through pretreatment with PI3K inhibitor, LY294002, and its activator, recombinant human insulin-like growth factor I (IGF1). RESULT DSC2 could significantly inhibit the viability of GC cells at both in vitro and in vivo levels. The underlying mechanism may be that DSC2 binds the γ-catenin to decrease its nuclear level, thereby downregulating the anti-apoptotic factor BCL-2 expression and upregulating the pro-apoptotic factor P53 expression, which adjusts the PTEN/PI3K/AKT signaling pathway to promote the cancer cell apoptosis. CONCLUSIONS Our finding suggests that DSC2 might be a potential therapeutic target for the treatment of cancers, most especially GC.
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Affiliation(s)
- Chao Sun
- Department of Pharmacy, The Second Hospital of Shandong University, Jinan 250033, China
| | - Kun Wen
- Department of Critical Care Medicine, The Second Hospital of Shandong University, Jinan 250033, China
| | - Bin Zhang
- Department of Pharmacy, The Second Hospital of Shandong University, Jinan 250033, China
| | - Yan Dong
- Department of Pharmacy, The Second Hospital of Shandong University, Jinan 250033, China
| | - Chen Chen
- Department of Pharmacy, The Second Hospital of Shandong University, Jinan 250033, China
| | - Shi-Yong Neo
- Singapore Immunology Network, Singapore 138648, Singapore
| | - Bing Leng
- Department of Pharmacy, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
| | - Tian-Tian Gao
- Department of Pharmacy, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
| | - Jing Wu
- Department of Pharmacy, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Jinan 250014, China
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Fu C, Peng J, Ling Y, Zhao H, Zhao Y, Zhang X, Ai M, Peng Q, Qin Y. Apigenin inhibits angiogenesis in retinal microvascular endothelial cells through regulating of the miR-140-5p/HDAC3-mediated PTEN/PI3K/AKT pathway. BMC Ophthalmol 2023; 23:302. [PMID: 37415101 DOI: 10.1186/s12886-023-03046-5] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 06/15/2023] [Indexed: 07/08/2023] Open
Abstract
BACKGROUND Diabetic retinopathy (DR) is a common cause of visual impairment. Apigenin has been shown to have antiangiogenic effects in various diseases. Our study aimed to investigate the role of apigenin in DR and elucidate the underlying mechanism. METHODS Human retinal microvascular endothelial cells (HRMECs) were exposed to high glucose (HG) to establish a DR model. HRMECs were treated with apigenin. Then we knocked down or overexpressed miR-140-5p and HDAC3, and added PI3K/AKT inhibitor LY294002. The expression levels of miR-140-5p, HDAC3, and PTEN were measured using qRT-PCR. Western blot analysis was performed to assess the expression of HDAC3, PTEN, and PI3K/AKT pathway-related proteins. Finally, cell proliferation and migration were evaluated using MTT, wound-healing assay, and transwell assay, while angiogenesis was examined using the tube formation assay. RESULTS HG treatment resulted in reduced miR-140-5p expression and overexpression of miR-140-5p suppressed proliferation, migration, and angiogenesis of the HG-induced HRMECs. Apigenin treatment significantly restored the decreased level of miR-140-5p caused by HG treatment and inhibited proliferation, migration, and angiogenesis of the HG-induced HRMECs by upregulating miR-140-5p. Moreover, miR-140-5p targeted HDAC3, and overexpression of miR-140-5p reversed the HG-inducted upregulation of HDAC3 expression. HDAC3 was found to bind to the promoter region of PTEN, inhibiting its expression. Knockdown of HDAC3 suppressed the PI3K/AKT pathway by elevating PTEN expression. Furthermore, apigenin inhibited angiogenesis in DR cell models through the regulating of the miR-140-5p/HDAC3-mediated PTEN/PI3K/AKT pathway. CONCLUSIONS Apigenin effectively suppressed angiogenesis in HG-induced HRMECs by modulating the miR-140-5p/HDAC3-mediated PTEN/PI3K/AKT pathway. Our study may contribute to the development of novel therapeutic approaches and identification of potential targets for the treatment of DR.
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Affiliation(s)
- Chaojun Fu
- Hunan Provincial Key Laboratory for the Prevention and Treatment of Ophthalmology and Otolaryngology Diseases With Chinese Medicine, Hunan University of Chinese Medicine, Hanpu Rd., Yuelu District, Changsha, 410208, Hunan, China
- Hunan Engineering Technological Research Center for the Prevention and Treatment of Otolaryngologic Disease and Protection of Visual Function With Chinese Medicine, Changsha, 410208, Hunan, China
| | - Jun Peng
- Ophthalmology Department, The First Hospital of Hunan University of Chinese Medicine, Shaoshan Rd., Yuhua District, Changsha, 410007, Hunan, China
| | - Yanjun Ling
- Institute of Chinese Medicine of Hunan Province, Lushan Rd., Yuelu District, Changsha, 410006, Hunan, China
| | - Hongqing Zhao
- Hunan Provincial Key Laboratory for the Prevention and Treatment of Ophthalmology and Otolaryngology Diseases With Chinese Medicine, Hunan University of Chinese Medicine, Hanpu Rd., Yuelu District, Changsha, 410208, Hunan, China
| | - Yongwang Zhao
- Ophthalmology Department, Songjiang Branch of the First People's Hospital affiliated to Shanghai Jiao Tong University, Zhongshan Zhong Rd., Songjiang District, Shanghai, 201699, China
| | - Xiuli Zhang
- Hunan Provincial Key Laboratory for the Prevention and Treatment of Ophthalmology and Otolaryngology Diseases With Chinese Medicine, Hunan University of Chinese Medicine, Hanpu Rd., Yuelu District, Changsha, 410208, Hunan, China
| | - Min Ai
- Hunan Provincial Key Laboratory for the Prevention and Treatment of Ophthalmology and Otolaryngology Diseases With Chinese Medicine, Hunan University of Chinese Medicine, Hanpu Rd., Yuelu District, Changsha, 410208, Hunan, China
- Hunan Engineering Technological Research Center for the Prevention and Treatment of Otolaryngologic Disease and Protection of Visual Function With Chinese Medicine, Changsha, 410208, Hunan, China
| | - Qinghua Peng
- Hunan Provincial Key Laboratory for the Prevention and Treatment of Ophthalmology and Otolaryngology Diseases With Chinese Medicine, Hunan University of Chinese Medicine, Hanpu Rd., Yuelu District, Changsha, 410208, Hunan, China.
- Hunan Engineering Technological Research Center for the Prevention and Treatment of Otolaryngologic Disease and Protection of Visual Function With Chinese Medicine, Changsha, 410208, Hunan, China.
| | - Yuhui Qin
- Hunan Provincial Key Laboratory for the Prevention and Treatment of Ophthalmology and Otolaryngology Diseases With Chinese Medicine, Hunan University of Chinese Medicine, Hanpu Rd., Yuelu District, Changsha, 410208, Hunan, China.
- Hunan Engineering Technological Research Center for the Prevention and Treatment of Otolaryngologic Disease and Protection of Visual Function With Chinese Medicine, Changsha, 410208, Hunan, China.
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Zhang P, Huang Q, Liao P, Sun S, Yang J. Molecular mechanism of miRNA-23a in sepsis-induced lung injury. Am J Transl Res 2023; 15:3900-3911. [PMID: 37434814 PMCID: PMC10331677] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Accepted: 04/26/2023] [Indexed: 07/13/2023]
Abstract
OBJECTIVE MicroRNA-23a-3p (miR-23a) is a novel gene regulator involved in inflammation. This study aimed to explore the molecular mechanism of miR-23a in sepsis-induced lung injury both in vitro and in vivo. METHODS Lipopolysaccharide (LPS)- and ATP-stimulated human myeloid leukemia mononuclear cells (THP-1) and Human Bronchial Epithelial Cells (BEAS-2B) cell lines were used, while cecal ligation and puncture (CLP)-induced sepsis BABL/c mice were constructed. The mRNA expression levels of interleukin (IL)-18, IL-1β, and miR-23a were determined, and Western blotting was used to measure CXCR4/PTEN/PI3K/AKT signaling. The concentrations of cytokines and Nod-like receptor family pyrin domain-containing 3 (NLRP3) were determined using an enzyme-linked immunosorbent assay. Lung tissue of mice was subjected to hematoxylin-eosin staining for examining myocardial injury. RESULTS MiR-23a inhibited NLRP3 inflammasome activation in LPS- and ATP-stimulated THP-1 and BEAS-2B cells (P<0.05). Overexpression of miR-23a decreased the lactate dehydrogenase release rate in the cells (P<0.05). Meanwhile, miR-23a overexpression decreased the concentration and gene expression of IL-1β and IL-18 in CXCR4 positive cells (P<0.05). Conversely, miR-23a knockdown increased the concentration and gene expression of IL-1β and IL-18 (P<0.05). Additionally, PTEN and p53 proteins were up-regulated in miR-23a mimic group and down-regulated in miR-23a inhibitor group (P<0.05). Furthermore, miR-23a expression was decreased in sepsis-induced lung injury mice (P<0.05). MiR-23a overexpression reduced the sepsis-induced lung injury probably by inhibiting acetylcholinesterase activity and expression levels of IL-1β, IL-18, capase-1, and NLRP3 (P<0.05). CONCLUSION miR-23a can significantly alleviate sepsis-induced lung injury in CLP-induced septic mice and LPS-stimulated cell lines by suppressing NLRP3 inflammasome activation and inflammatory response, while promoting the CXCR4/PTEN/PI3K/AKT pathway.
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Affiliation(s)
- Pingli Zhang
- Department of Pediatric, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University Qingdao 266035, Shandong, China
| | - Qikun Huang
- Department of Pediatric, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University Qingdao 266035, Shandong, China
| | - Peiyuan Liao
- Department of Pediatric, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University Qingdao 266035, Shandong, China
| | - Shijing Sun
- Department of Pediatric, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University Qingdao 266035, Shandong, China
| | - Jing Yang
- Department of Pediatric, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University Qingdao 266035, Shandong, China
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Liu Y, Lei J, Ji X, Li C, Chen X, Wang J, Dong J, Zhang H, Li Y. Knockdown of growth differentiation factor-15 inhibited nonsmall cell lung cancer through inactivating PTEN/PI3K/AKT signaling pathway. Genes Genomics 2023; 45:507-517. [PMID: 36306063 DOI: 10.1007/s13258-022-01328-8] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 10/10/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Non-small cell lung cancer (NSCLC) is characterized by high morbidity and mortality in the world. Growth and differentiation factor 15 (GDF15) has been proved to play an important role in regulating tumor progression. However, the influence of GDF15 on NSCLC remains unclear. OBJECTIVE We aimed to investigate the regulatory role of GDF15 in NSCLC. METHODS The correlation between GDF15 expression and prognosis, stage of NSCLC was examined with bioinformatics method. The cell proliferation was detected with CCK8 and EdU staining. Wound healing, Transwell, flow cytometry assays were used to measure cell migration, invasion, and apoptosis, respectively. RESULTS High expression of GDF15 is correlated with worse survival and malignant progression of NSCLC. Knockdown of GDF15 restrained the proliferation, invasion, migration, but accelerated apoptosis of lung cancer cells through regulating PTEN/PI3K/AKT signaling pathway. sh-GDF15 suppressed epithelial mesenchymal transition (EMT) process and promoted the chemotherapy sensitivity of lung cancer cells. CONCLUSION GDF15 plays an important role in NSCLC progression. GDF15 mediated PTEN/PI3K/AKT signaling pathway might be the potential therapeutic targets for the prevention and treatment of GDF15.
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Affiliation(s)
- Yongshi Liu
- Department of thoracic surgery, Second Affiliated Hospital of Air Force Medical University, No. 1 Xinsi Road, 710038, Xi'an, China
| | - Jie Lei
- Department of thoracic surgery, Second Affiliated Hospital of Air Force Medical University, No. 1 Xinsi Road, 710038, Xi'an, China
| | - Xiang Ji
- Department of thoracic surgery, Second Affiliated Hospital of Air Force Medical University, No. 1 Xinsi Road, 710038, Xi'an, China.
| | - Chunmei Li
- Department of thoracic surgery, Second Affiliated Hospital of Air Force Medical University, No. 1 Xinsi Road, 710038, Xi'an, China
| | - Xiaoxia Chen
- Department of thoracic surgery, Second Affiliated Hospital of Air Force Medical University, No. 1 Xinsi Road, 710038, Xi'an, China
| | - Juan Wang
- Department of thoracic surgery, Second Affiliated Hospital of Air Force Medical University, No. 1 Xinsi Road, 710038, Xi'an, China
| | - Jiajia Dong
- Department of thoracic surgery, Second Affiliated Hospital of Air Force Medical University, No. 1 Xinsi Road, 710038, Xi'an, China
| | - Hongpei Zhang
- Department of thoracic surgery, Second Affiliated Hospital of Air Force Medical University, No. 1 Xinsi Road, 710038, Xi'an, China
| | - Yan Li
- Department of thoracic surgery, Second Affiliated Hospital of Air Force Medical University, No. 1 Xinsi Road, 710038, Xi'an, China
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10
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Wang J, Lu Y, Zhang C, Tian S, Xiang H, Ding P, Chen J, Ji G, Wu T. Qinggan Huoxue Recipe attenuates Alcoholic Liver Disease by suppressing PI3K/AKT signaling pathway based on network pharmacology. Int J Med Sci 2023; 20:346-358. [PMID: 36860681 PMCID: PMC9969510 DOI: 10.7150/ijms.80329] [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] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Accepted: 01/13/2023] [Indexed: 02/04/2023] Open
Abstract
Qinggan Huoxue Recipe (QGHXR) is originated from Xiao Chaihu Decotion. Many experimental studies have confirmed that QGHXR can significantly alleviate the symptoms of alcoholic liver disease (ALD), but the detailed mechanism is still unclear. Using traditional Chinese medicine network pharmacology analysis system database and animal experiments, we found that 180 potentially chemical compositions and 618 potential targets were screened from the prescription, which shared 133 signal pathways with ALD. Through animal experiments, it was found that QGHXR could reduce the liver total cholesterol (TC), serum TC, alanine aminotransferase, aspartate aminotransferase of ALD mice, reduce the lipid droplets and inflammatory injury of liver tissue. Meanwhile, it can also increase PTEN, decrease PI3K and AKT mRNA levels. In this study, we obtained the targets and pathways of QGHXR in the treatment of ALD, and preliminatively verified that QGHXR may improve ALD through PTEN/PI3K/AKT signaling pathway.
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Affiliation(s)
- Junmin Wang
- Minhang Hospital, Fudan University, Shanghai 201199, China.,Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Yifei Lu
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Caiyun Zhang
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Shuxia Tian
- Minhang Hospital, Fudan University, Shanghai 201199, China
| | - Hongjiao Xiang
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Peilun Ding
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Junming Chen
- Minhang Hospital, Fudan University, Shanghai 201199, China
| | - Guang Ji
- Institute of Digestive Disease, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Tao Wu
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
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11
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Wu H, Pei H, Liu J, Zeng J, Liu S, Chen W, He Z, Du R. Protective effect of total saponins of ginseng stems and leaves (GSLS) on chlorpyrifos-induced brain toxicity in mice through the PTEN/PI3K/AKT axis. Aging (Albany NY) 2022; 14:8982-8999. [PMID: 36374217 PMCID: PMC9740365 DOI: 10.18632/aging.204374] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 10/21/2022] [Indexed: 11/13/2022]
Abstract
Chlorpyrifos (CPF) is a class of toxic compounds which has been widely used in agriculture that can cause multi-organ damage to the liver, kidneys, testes, and nervous system. Currently, most studies on ginseng have concentrated on the roots and rhizomes, and less research has been conducted on the above-ground parts. Our laboratory found that ginseng stem and leaf total saponin (GSLS) features strong antioxidant activity. In this experiment, we selected different concentrations of CPF to induce hippocampal neuronal cell injury model in mice, conducted a cell survival screening test, and also selected appropriate concentrations of CPF to induce brain injury model in mice. CCK-8, flow cytometry, Elisa, Hoechst 33258 staining, Annexin V-FITC/PI staining, HE staining, Morris water maze, and qRT-PCR were adopted for detecting the effects of GSLS treatment on CPF-induced cell viability, mitochondrial membrane potential, reactive oxygen species (ROS) levels, Ca2+ concentration and GSLS treatment on CPF-induced brain injury and related signaling in mice, respectively. The effects of GSLS treatment on CPF-induced brain injury and the related signaling pathways in mice were examined. The results showed that GSLS at 60 μg/ml and 125 μg/ml concentrations elevated the viability of CPF-induced HT22 cells, increased mitochondrial membrane potential, depleted ROS, decreased Ca2+ concentration, and decreased apoptosis rate. Meanwhile, GSLS treatment significantly reduced CPF-induced escape latency in mice, elevated the number of entries into the plateau and effective area, increased the effective area and target quadrant residence time, as well as improved the pathological damage of mouse hippocampal neurons. The results of mouse brain sections demonstrated that GSLS treatment significantly increased SOD and CAT activities and lowered MDA accumulation in CPF-induced mice. qRT-PCR revealed that PTEN mRNA expression was significantly decreased with PI3K and AKT expression being significantly increased in GSLS-treated CPF-induced mice. Thus, the obtained results indicate that GSLS can effectively antagonize CPF-induced brain toxicity in mice through regulating PTEN/PI3K/AKT pathway.
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Affiliation(s)
- Hong Wu
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
| | - Hongyan Pei
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
| | - Jinze Liu
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
| | - Jianning Zeng
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
| | - Silu Liu
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
| | - Weijia Chen
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
| | - Zhongmei He
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
| | - Rui Du
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
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Qi X, Ren Z, Cui Y, Zhang J, Zhang Y, Wang S, Lin H. Cadmium induces apoptosis by miR-9-5p targeting PTEN and regulates the PI3K/AKT pathway in the piglet adrenal gland. Environ Sci Pollut Res Int 2022; 29:73001-73010. [PMID: 35616841 DOI: 10.1007/s11356-022-20734-9] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 05/05/2022] [Indexed: 06/15/2023]
Abstract
Cadmium (Cd) is an environmental pollutant that can cause endocrine organ damage. To explore the effect of subacute CdCl2 exposure on piglet adrenal gland tissue and its mechanism based on the establishment of this model, bioinformatics, TUNEL assay, western blot (WB), and qRT-PCR methods were used to detect related indicators. The results showed that after Cd exposure, antioxidant enzymes decreased, heat shock protein increased, and miR-9-5p-gene of phosphatase and tensin homolog (PTEN) upregulates the phosphatidylinositol-3-kinase (PI3K/AKT) pathway. After this pathway was activated, the expression of the apoptosis-related factors cysteinyl aspartate-specific proteinase 3 and 9 (caspase 3 and 9), B-cell lymphoma-2-associated X (BAX) was increased sharply, and the expression of B-cell lymphoma-2 (BCL2) was significantly decreased. The changes in these indicators indicate that Cd exposure induces apoptosis and causes tissue damage in the adrenal gland of piglets. This study aims to reveal the toxic effects of CdCl2 in animals and will provide new ideas for the toxicology of Cd.
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Affiliation(s)
- Xue Qi
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Zeheng Ren
- Biopharmaceutical Lab, College of Life Science, Northeast Agricultural University, Harbin, People's Republic of China
| | - Yuan Cui
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Jinxi Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Yue Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Shengchen Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Hongjin Lin
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China.
- Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Harbin, People's Republic of China.
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Sun K, Wang X, Zhang X, Shi X, Gong D. The antagonistic effect of melatonin on TBBPA-induced apoptosis and necroptosis via PTEN/PI3K/AKT signaling pathway in swine testis cells. Environ Toxicol 2022; 37:2281-2290. [PMID: 35665993 DOI: 10.1002/tox.23595] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Revised: 05/16/2022] [Accepted: 05/21/2022] [Indexed: 06/15/2023]
Abstract
Tetrabromobisphenol A (TBBPA) is a widely used industrial brominated flame retardant, which can endanger animal and human health, including cytotoxicity, endocrine disruption, reproductive toxicity and so on. Melatonin (MT) is a noteworthy free radical scavenger and an antioxidant to alleviate oxidative stress. To investigate the cytotoxic of TBBPA on swine testis cells (ST cells), as well as the antagonistic effect of MT, we established TBBPA exposure and MT antagonistic models, used flow cytometry and AO/EB staining methods to detect apoptosis and necroptosis, used DCFH-DA method to examine the content of reactive oxygen species (ROS) and investigated the expression of associated genes using RT-PCR and Western blot. According to our findings, TBBPA exposure induced cell death in ST cells. TBBPA increased ROS levels, thus increasing PTEN expression and decreasing PI3K and AKT expression. Apoptosis-related factors (Caspase-3, Bax, Cyt-c, and Caspase-9) and necroptosis-related factors (RIPK1, RIPK3, and MLKL) were considerably elevated, in addition to the reduced expression of BCL-2 and Caspase-8. We also found that MT inhibited apoptosis and necroptosis in TBBPA-induced ST cells and effectively resolved the abnormal expression of related signaling pathways. In summary, the above results indicate that MT alleviates the disorder of PTEN/PI3K/AKT signaling pathway via inhibiting ROS overproduction, thereby mitigating apoptosis and necroptosis caused by TBBPA. This research provides a theoretical basis for further understanding of the toxicity of TBBPA and the detoxification of MT against environmental toxics.
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Affiliation(s)
- Kexin Sun
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Xu Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Xinyu Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Xu Shi
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Duqiang Gong
- College of Animal Science and Technology, College of Jilin Agricultural Science and Technology University, Jilin, China
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Yang Y, Cheng T, Xie P, Wang L, Chen H, Cheng Z, Zhou J. PMEPA1 interference activates PTEN/PI3K/AKT, thereby inhibiting the proliferation, invasion and migration of pancreatic cancer cells and enhancing the sensitivity to gemcitabine and cisplatin. Drug Dev Res 2022; 83:64-74. [PMID: 34189738 DOI: 10.1002/ddr.21844] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 04/28/2021] [Accepted: 05/06/2021] [Indexed: 12/24/2022]
Abstract
To explore the biological activity of transmembrane prostateandrogen induced RNA (PMEPA1) in human pancreatic cancer (hPAC) cells and its drug sensitivity to gemcitabine (GEM) and cisplatin (DDP). Gene Expression Profiling Interactive Analysis (GEPIA) and Cancer Cell Line Encyclopedia (CCLE) were consulted to indicate the expression of PMEPA1 in hPAC tissues and cells. Quantitative real-time PCR (RT-qPCR) and western blot were performed to verify the indication. RT-qPCR and western blot also detected the expressions of PTEN/PI3K/AKT before and after transfection of PMEPA1 siRNA plasmids. Cell counting Kit-8 (CCK-8) and EdU staining were performed to examine cell proliferation before and after transfection of phosphatase and tensin homologue delet2ed on chromosome ten (PTEN) siRNA plasmids. Transwell and wound healing detected the invasion and migration of hPAC cells. The expressions of MMP-2 and MMP-9 were detected by western blot. After GEM or DDP treatment, cell viability was observed by commercial kits and cell apoptosis by flow cytometry. GEPIA and CCLE predicted increased expression of PMEPA1 in hPAC tissues and cells, which was confirmed by quantitative reverse transcription polymerase chain reaction (RT-qPCR) and western blot. PMEPA1 was also shown to be associated with disease-free survival. Transfection of PMEPA1 siRNA plasmids affected the expressions of PTEN/PI3K/AKT. PMEPA1 interference inhibited the proliferation, invasion and migration of hPAC cells. Furthermore, PMEPA1 interference also enhanced the sensitivity of hPAC cells to GEM and DDP via PTEN interference. PMEPA1 interference inhibits the proliferation, invasion and migration of pancreatic cancer cells and enhances the sensitivity to GEM and cisplatin by activating PTEN/PI3K/AKT signaling.
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Affiliation(s)
- Yang Yang
- Nanjing Medical University, Nanjing, Jiangsu, China
- Department of Hepatic-Biliary-Pancreatic Center, Zhongda Hospital of Southeast University, Nanjing, Jiangsu, China
- Department of Hepatobiliary Surgery Research Institute, Southeast University, Nanjing, Jiangsu, China
| | - Tao Cheng
- Department of General Surgery, Zhongda Hospital of Southeast University, Nanjing, Jiangsu, China
| | - Peng Xie
- School of Medicine, Southeast University, Nanjing, Jiangsu, China
| | - Lishan Wang
- Department of Hepatic-Biliary-Pancreatic Center, Zhongda Hospital of Southeast University, Nanjing, Jiangsu, China
- Department of Hepatobiliary Surgery Research Institute, Southeast University, Nanjing, Jiangsu, China
| | - Hong Chen
- School of Medicine, Southeast University, Nanjing, Jiangsu, China
| | - Zhangjun Cheng
- Department of Hepatic-Biliary-Pancreatic Center, Zhongda Hospital of Southeast University, Nanjing, Jiangsu, China
- Department of Hepatobiliary Surgery Research Institute, Southeast University, Nanjing, Jiangsu, China
| | - Jiahua Zhou
- Nanjing Medical University, Nanjing, Jiangsu, China
- Department of Hepatic-Biliary-Pancreatic Center, Zhongda Hospital of Southeast University, Nanjing, Jiangsu, China
- Department of Hepatobiliary Surgery Research Institute, Southeast University, Nanjing, Jiangsu, China
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15
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Zheng H, Wang W, Li S, Han L. The Effect of Zbxz23ir-21 NANO(nanomaterials) Delivery Vector on Apoptosis and PTEN(phosphatase and tensin homolog deleted on chromosome ten)/PI3K(Intracellular phosphatidylinositol kinase)/AKT(related to the A and C kinase) in Children with CHOLESTEATOMA in Middle Ear. Bioengineered 2021; 12:8809-8821. [PMID: 34696703 PMCID: PMC8806951 DOI: 10.1080/21655979.2021.1984718] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 09/20/2021] [Indexed: 11/02/2022] Open
Abstract
Cholesteatoma of the middle ear is a kind of cystic disease with clear boundary formed by the abnormal growth of keratosquamous epithelium in temporal bone. Cholesteatoma otitis caused by it is a common disease in otorhinolaryngology. The EPR effect promotes the selective distribution of macromolecular substances in tumor tissues, which can increase drug efficacy. The purpose of this paper is to prepare and deliver the mir34a small molecule regulator, rubine, by nanotechnology, and to deliver it to the cells successfully. It can passively target tumor tissue through EPR effect, and play its regulatory role on miR-34a, thus inhibiting the growth of cholesteatoma cells. The effects of nano delivery on apoptosis and PIEN/P13K/AKt of children with middle ear choledochoma were tested in this paper. The experimental results were conducted on cholesteatoma cells as cell lines and balb/c nude mice as experimental objects. The expression of PTEN/PI3K/AKT in experimental group and control group was detected by immunohistochemistry. Apoptosis was discussed by cell activity detection. The physical and chemical properties, encapsulation efficiency, drug release ability in vitro and antitumor activity of nanoparticles in vitro and in vivo were studied. The results of cell level experiments in vitro showed that free RUBINE caused about 15% apoptosis, which was not different from RC NPs. The results showed that the nanoparticles could improve the expression of miR-34 in the cells, and then regulate the expression of Bcl-2, Cdk6 and CyclinD1, and play the inhibitory effect of miR-34a on the proliferation and migration of tumor cells.
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MESH Headings
- Animals
- Apoptosis
- Biomarkers, Tumor/genetics
- Biomarkers, Tumor/metabolism
- Cell Movement
- Cell Proliferation
- Child
- Cholesteatoma, Middle Ear/drug therapy
- Cholesteatoma, Middle Ear/genetics
- Cholesteatoma, Middle Ear/metabolism
- Cholesteatoma, Middle Ear/pathology
- Female
- Gene Expression Regulation, Neoplastic
- Humans
- Liver Neoplasms/drug therapy
- Liver Neoplasms/metabolism
- Liver Neoplasms/pathology
- Male
- Mice
- Mice, Inbred BALB C
- Mice, Nude
- MicroRNAs/administration & dosage
- MicroRNAs/genetics
- Nanostructures/administration & dosage
- Nanostructures/chemistry
- PTEN Phosphohydrolase/genetics
- PTEN Phosphohydrolase/metabolism
- Phosphatidylinositol 3-Kinases/genetics
- Phosphatidylinositol 3-Kinases/metabolism
- Prognosis
- Proto-Oncogene Proteins c-akt/genetics
- Proto-Oncogene Proteins c-akt/metabolism
- Tumor Cells, Cultured
- Xenograft Model Antitumor Assays
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Affiliation(s)
- Hongwei Zheng
- Department of Otolaryngology, Peking University People’s Hospital, Beijing, China
| | - Wenlun Wang
- Department of Otolaryngology, Peking University People’s Hospital, Beijing, China
| | - Shichang Li
- Department of Otolaryngology, Peking University People’s Hospital, Beijing, China
| | - Lin Han
- Department of Otolaryngology, Peking University People’s Hospital, Beijing, China
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Tang B, Ni W, Zhou J, Ling Y, Niu D, Lu X, Chen T, Ramalingam M, Hu J. Peroxiredoxin 6 secreted by Schwann-like cells protects neuron against ischemic stroke in rats via PTEN/PI3K/AKT pathway. Tissue Cell 2021; 73:101635. [PMID: 34482185 DOI: 10.1016/j.tice.2021.101635] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 08/27/2021] [Accepted: 08/27/2021] [Indexed: 11/21/2022]
Abstract
Schwann cells can promote the survival of damaged neurons and axon regeneration by secreting or releasing some proteins and factors which may provide effective strategies to the remedy for ischemic stroke. The models of middle cerebral artery occlusion and oxygen-glucose deprivation (OGD) were established. Peroxiredoxin 6 (PRDX6) was found in Schwann-like cell conditioned medium (SCLC-CM) by mass spectrometry. The rehabilitative performance of SCLC-CM on focal cerebral ischemia of rats and on OGD-induced PC12 cells were assessed. SCLC-CM significantly improved neurological recovery, reducing the infarct volume of rats after stroke. PRDX6 could significantly inhibit neuron apoptosis in the OGD injury by mediating oxidative stress and activating the PTEN/PI3K/AKT pathway. In conclusion, PRDX6 secreted by Schwann-like cell protects neuron against focal cerebral ischemia, SCLC-CM might be a new effective early intervention for ischemic stroke.
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17
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Yiming Z, Zhaoyi L, Jing L, Jinliang W, Zhiqiang S, Guangliang S, Shu L. Cadmium induces the thymus apoptosis of pigs through ROS-dependent PTEN/PI3K/AKT signaling pathway. Environ Sci Pollut Res Int 2021; 28:39982-39992. [PMID: 33765263 DOI: 10.1007/s11356-021-13517-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 03/15/2021] [Indexed: 06/12/2023]
Abstract
Cadmium (Cd) is a transition metal that is toxic to living organisms in the environment and endangers living organisms. To explore whether Cd induces apoptosis in pig thymus and its possible mechanism, the role Cd induction of the PTEN/PI3K/Akt pathway in apoptosis of thymus cells was studied in pigs. We found that Cd exposure (the feed is treated with Cd) significantly increased Cd accumulation in the thymus of pigs. The TUNEL assay confirmed the typical apoptotic characteristics of thymus in Cd group. Moreover, in the Cd group, the activities of antioxidant indices decreased significantly, while the levels of oxidative stress indexes increased significantly, and the mRNA levels of GSH, CAT, Gpx1, GST, SOD1, and SOD2 decreased obviously. Moreover, the mRNA and protein levels of PTEN/PI3K/AKT and apoptosis-related genes were detected by qPCR and western blotting. The results show that the expressions of PI3K and AKT decreased, while the expression of PTEN increased, indicating that pathway activated. With the PTEN/PI3K/AKT pathway regulating, Bcl-2 expression decreased. Conversely, the mRNA and protein expression of apoptosis-related genes were up-regulated. In conclusion, accumulation of Cd in the pigs caused oxidative damage to immune tissues. In addition, Cd-induced oxidative stress activates the PTEN/PI3K/AKT pathway, inducing apoptosis in the thymus of pigs.
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Affiliation(s)
- Zhang Yiming
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Liu Zhaoyi
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Lan Jing
- Quality and Safety Institute of Agricultural Products, Heilongjiang Academy of Agricultural Sciences, Harbin, 150000, China
| | - Wang Jinliang
- Shandong Binzhou Anim Sci & Vet Med Acad, Binzhou, 256600, People's Republic of China
| | - Shen Zhiqiang
- Shandong Binzhou Anim Sci & Vet Med Acad, Binzhou, 256600, People's Republic of China
| | - Shi Guangliang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China.
| | - Li Shu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China.
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Sun B, Hu N, Cong D, Chen K, Li J. MicroRNA-25-3p promotes cisplatin resistance in Non-small-cell lung carcinoma (NSCLC) through adjusting PTEN/PI3K/AKT route. Bioengineered 2021; 12:3219-3228. [PMID: 34266345 PMCID: PMC8806525 DOI: 10.1080/21655979.2021.1939577] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
MicroRNAs exert crucial effects in the drug resistance. The purpose of this research was to investigate the miR-25-3p effects on DDP resistance in NSCLC. We used RT-qPCR to evaluate the expression of miR-25-3p. Cell growth was determined using MTS assay. Cellular bio-activity was analyzed via Colony formation, Annexin V/PI, and Transwell assay. Luciferase reporter assay was used to determine miR-25-3p and PTEN binding. Western blot was used to determine PTEN, PI3K, p-AKT/AKT expression. In-vivo study was used to determine the effects of miR-25-3p on the tumor growth. Expression of miR-25-3p is increased in NSCLC cisplatin resistant A549 and H1299 cells. Furthermore, miR-25-3p mimic enhanced drug resistance, and accelerated cell invasion and metastasis. Moreover, miR-25-3p mimic resulted in the activation of PTEN/PI3K/AKT pathway. However, miR-25-3p inhibitors exhibited the opposite trend. We further identified PTEN as a potential target of miR-25-3p. PTEN knockout promoted cisplatin resistance, while PTEN mimic displayed opposite effects. Interestingly, miR-25-3p further boosted cisplatin resistance cells in vivo, and miR-25-3p inhibitors reduced the in-vivo tumor volume. MiR-25-3p/PTEN/PI3K/AKT axis might accelerate DDP tolerance in NSCLC, which may serve as a potential target for chemotherapy resistance in NSCLC.
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Affiliation(s)
- Butong Sun
- Department of Hematology and Oncology, China-Japan Union Hospital of Jilin University, Changchun City, China
| | - Nanjun Hu
- Department of Hematology and Oncology, China-Japan Union Hospital of Jilin University, Changchun City, China
| | - Dan Cong
- Department of Hematology and Oncology, China-Japan Union Hospital of Jilin University, Changchun City, China
| | - Kang Chen
- Department of Hematology and Oncology, China-Japan Union Hospital of Jilin University, Changchun City, China
| | - Jun Li
- Department of Hematology and Oncology, China-Japan Union Hospital of Jilin University, Changchun City, China
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Abstract
PTEN exerts tumor suppressor role through inhibiting PI3K/AKT signaling. DJ-1 plays an oncogenic role through negatively regulation of PTEN expression. Curcumin (Cur) is a phenolic compound extracted from a variety of plant roots, with multiple anti-tumor pharmacological effects. This study aims to investigate whether Cur plays a role in the regulation of DJ-1-PENT/PI3K/AKT signaling as well as the proliferation and apoptosis of hepatocellular carcinoma cells. Normal human hepatocyte HL-7702 and hepatocellular carcinoma cell lines SMMC-7721 and HepG2 were cultured followed by analysis of the expression of DJ-1 and PTEN. SMMC-7721 and HepG2 cells were treated with different concentrations of Cur (0, 5, 10 μM) followed by measuring cell proliferation by CCK-8, caspase-3 activity as well as DJ-1 expression by western blot. In addition, SMMC-7721 or HepG2 cells were divided into two groups: Cur+pcDNA3.1-Blank and Cur+pcDNA3.1-DJ-1 for analysis of the expression of DJ-1, PTEN and p-AKT, cell apoptosis and proliferation. Compared with HL-7702, SMMC-7721 and HepG2 cells displayed significantly higher DJ-1 expression and lower PTEN expression. Cur treatment significantly inhibited proliferation of SMMC-7721 and HepG2 cells, increased caspase-3 activity and downregulated DJ-1 expression. Transfection of pcDNA3.1-DJ-1 significantly increased DJ-1 and p-AKT expression, promoted cell proliferation, but decreased PTEN expression and cell apoptosis. In conclusion, Cur inhibits proliferation of hepatocellular carcinoma cells and PTEN/PI3K/AKT signaling pathway via the reduction of DJ-1 expression, which provides new insights to the anticancer effects of curcumin in hepatocellular carcinoma.
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Gong M, Li Z, Zhang X, Liu B, Luo J, Qin X, Wei Y. PTEN mediates serum deprivation-induced cytotoxicity in H9c2 cells via the PI3K/AKT signaling pathway. Toxicol In Vitro 2021; 73:105131. [PMID: 33652126 DOI: 10.1016/j.tiv.2021.105131] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 02/09/2021] [Accepted: 02/25/2021] [Indexed: 12/22/2022]
Abstract
The pathogenesis of acute myocardial infarction (AMI) is associated with cardiomyocyte necrosis and apoptosis. Numerous studies have determined the regulatory effects of Phosphatase and tensin homolog (PTEN) cell proliferation and apoptosis in other cell types. However, the potential role of PTEN in cardiomyocyte is unclear. In this study, we used H9c2 cells cultured under serum deprivation to simulate the apoptosis process of myocardial infarction. Small interference RNA (siRNA) of PTEN was used to knock down the expression of PTEN. Cell viability was determined by CCK-8. Cell proliferation was examined by Edu staining, and the protein expression was analyzed by Western blot. We also evaluated the generation of ROS, the degree of DNA damage, and cell apoptosis using immunofluorescence assay. As a result, we observed that serum deprivation in H9c2 cells increased PTEN expression. Functionally, the PTEN knockdown experiment using siRNA inhibited serum deprivation-induced cell apoptosis, ROS production, and DNA damage, whereas increased cell proliferation. All these effects could be reversed by phosphatidylinositol 3-kinase (PI3K) inhibitor, which indicated the PI3K/protein kinase B (AKT) might be the critical component of the PTEN effects during serum deficiency. In conclusion, our study indicated the role of the PTEN/PI3K/AKT pathway in serum deprivation-induced cytotoxicity in H9c2 cells.
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Wu C, Yang J, Li R, Lin X, Wu J, Wu J. LncRNA WT1-AS/miR-494-3p Regulates Cell Proliferation, Apoptosis, Migration and Invasion via PTEN/PI3K/AKT Signaling Pathway in Non-Small Cell Lung Cancer. Onco Targets Ther 2021; 14:891-904. [PMID: 33603394 PMCID: PMC7881945 DOI: 10.2147/ott.s278233] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 12/04/2020] [Indexed: 12/18/2022] Open
Abstract
Background Non-small cell lung cancer (NSCLC) is one of the most common malignancies with the highest morbidity and mortality worldwide. Long non-coding RNAs (lncRNAs) are recently recognized as noteworthy regulators of different tumors, counting NSCLC. However, the biological functions and regulatory mechanism of lncRNA WT1-AS in NSCLC progression still stay uninvestigated. Methods WT1-AS and miR-494-3p levels in NSCLC cell lines were detected by real-time quantitative polymerase chain reaction (RT-qPCR). In the current study, the regulatory effects of WT1-AS/miR-494-3p axis on cellular behaviors of NSCLC cell lines (A549 and NCI-H1975) were evaluated by a variety of methods. Cell counting kit-8 (CCK-8) and EDU assays were adopted to assess NSCLC cell proliferation. Tunnel staining and flow cytometry assay were applied to determine cell apoptosis and cell cycle distribution. Besides, cell migration and invasion abilities were analyzed by performing wound healing and transwell assays. Meanwhile, the levels of key proteins related to NSCLC cell apoptosis and PTEN/PI3K/AKT pathway were examined using Western blot assay. In addition, luciferase reporter assays were used to determine the interaction between WT1-AS and miR-494-3p or miR-494-3p and PTEN. Results Visibly downregulated WT1-AS in NSCLC cell lines was obtained from Broad Institute Cancer Cell Line Encyclopedia (CCLE) database and further verified by performing RT-qPCR. Besides, miR-494-3p was the downstream target gene of WT1-AS and obviously upregulated miR-494-3p in NSCLC cell lines was confirmed. WT1-AS overexpression suppressed cell proliferation, migration and invasion abilities while enhanced cell apoptosis of A549 and NCI-H1975 cells. Furthermore, upregulation of miR-494-3p distinctly reversed these inhibitory effects of WT1-AS overexpression on the tumorigenesis and progression of NSCLC. In addition, WT1-AS promoted PTEN expression and thereby inhibited activation of PI3K/AKT pathway by sponging miR-494-3p. Conclusion To conclude, lncRNA WT1-AS impeded cell proliferation, migration, invasion but accelerated cell apoptosis via negatively regulating miR-494-3p to mediate PTEN/PI3K/AKT pathway in NSCLC.
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Affiliation(s)
- Chaohui Wu
- Department of Thoracic and Cardiovascular Surgery, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian Province, 362000, People's Republic of China
| | - Jiansheng Yang
- Department of Thoracic and Cardiovascular Surgery, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian Province, 362000, People's Republic of China
| | - Rongbin Li
- Department of Thoracic and Cardiovascular Surgery, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian Province, 362000, People's Republic of China
| | - Xianbin Lin
- Department of Thoracic and Cardiovascular Surgery, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian Province, 362000, People's Republic of China
| | - Jiayun Wu
- Department of Thoracic and Cardiovascular Surgery, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian Province, 362000, People's Republic of China
| | - Jingyang Wu
- Department of Thoracic and Cardiovascular Surgery, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian Province, 362000, People's Republic of China
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Zhong Z, Yao X, Luo M, Li M, Dong L, Zhang Z, Jiang R. Protocatechuic aldehyde mitigates hydrogen peroxide-triggered PC12 cell damage by down-regulating MEG3. Artif Cells Nanomed Biotechnol 2020; 48:602-609. [PMID: 32064936 DOI: 10.1080/21691401.2020.1725535] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Background: Protocatechuic aldehyde (PA) extracts from S. miltiorrhiza, which anti-oxidative and anti-inflammatory functions have been certified in diverse diseases. Nonetheless, the influence of PA in spinal cord injury (SCI) is still hazy. The research probed the function of PA in hydrogen peroxide (H2O2)-damaged PC12 cells.Methods: The disparate dosages of H2O2 (0-400 µM) or PA (0-2 µM) were applied for stimulating PC12 cells, and subsequently cell viability, apoptosis, apoptosis- and autophagy-correlative factors were evaluated. After pc-MEG3 transfection, functions of MEG3 overexpression in H2O2 and/or PA-managed PC12 cells were reassessed. Western blot was conducted to determine Wnt/β-catenin and PTEN/PI3K/AKT pathways.Results: H2O2 stimulation clearly triggered PC12 cell damage via prohibiting cell viability and accelerating apoptosis and autophagy. But, PA management mitigated H2O2-triggered PC12 cells damage. Down-regulated MEG3 triggered by PA was presented in H2O2-managed cells. What's more, overexpressed MEG3 dramatically overturned the influences of PA in H2O2-damaged PC12 cells. Beyond that, PA activated Wnt/β-catenin and PTEN/PI3K/AKT via repression of MEG3 in H2O2-managed PC12 cells.Conclusions: The results disclosed the protective impacts of PA on PC12 cells to resist H2O2-provoked damage. MEG3, Wnt/β-catenin and PTEN/PI3K/AKT pathways joined in adjusting the activity of PA in H2O2-damaged PC12 cells.
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Affiliation(s)
- Zhiwei Zhong
- Department of Pain, China-Japan Union Hospital of Jilin University, Jilin, China
| | - Xiaoyuan Yao
- Department of Pathology, Changchun Medical College, Jilin, China
| | - Min Luo
- Department of Pain, China-Japan Union Hospital of Jilin University, Jilin, China
| | - Mei Li
- Department of Medical Insurance Management, China-Japan Union Hospital of Jilin University, Jilin, China
| | - Lina Dong
- Department of Pain, China-Japan Union Hospital of Jilin University, Jilin, China
| | - Ziyan Zhang
- Department of Orthopedics, The Second Hospital of Jilin University, Jilin, China
| | - Rui Jiang
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, Jilin, China
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Cao HL, Gu MQ, Sun Z, Chen ZJ. miR-144-3p Contributes to the Development of Thyroid Tumors Through the PTEN/PI3K/AKT Pathway. Cancer Manag Res 2020; 12:9845-9855. [PMID: 33116843 PMCID: PMC7553603 DOI: 10.2147/cmar.s265196] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 08/28/2020] [Indexed: 12/17/2022] Open
Abstract
Purpose To explore the expression and related mechanism of miR-144-3p and PTEN in thyroid cancer (TC). Patients and Methods From February 2018 to November 2019, 62 patients with TC who received treatment in Chengwu Hospital Affiliated to Shandong First Medical University were collected. TC cells and human normal thyroid HTori-3 cells were purchased. The miR-144-3p-inhibitor, miR-144-3p-mimics, empty vector plasmid (miRNA-NC), si-PTEN and sh-PTEN were transfected into B-CPAP and HTh-7 cells. The expressions of miR-144-3p and PTEN in the specimens were tested by qRT-PCR (qP). WB was used to detect the expression of Bcl-2, APR3, N-cadherin, Slug and Bax proteins in the cells. The cell proliferation was detected by MTT, and the cell invasion was tested by Transwell. The apoptosis was detected by flow cytometry (FC). Results miR-144-3p was highly expressed and PTEN was weakly expressed in the patients’ tissues. The AUC of miR-144-3p and PTEN was >0.8. miR-144-3p and PTEN were related to TNM stage, lymph node metastasis and differentiation degree of TC patients. The B-CPAP and HTh-7 with the greatest expression differences were selected for transfection. The expression of miR-144-3p in miR-144-3p-inhibitor group was significantly lower than that in NC group (P<0.01), and that in miR-144-3p-mimics group was significantly higher than that in NC group (p < 0.01). The expression of PTEN in si-PTEN group was significantly lower than that in NC group (P<0.01), while that in sh-PTEN group was significantly higher than that in NC group (P<0.01). Silencing miR-144-3p and overexpressing PTEN could inhibit cell proliferation, invasion and promote apoptosis. WB detection uncovered that silencing the miR-144-3p expression and overexpressing PTEN could inhibit the PI3K, Akt, p-AKT, Bcl-2, APR3 and cyclinD1 proteins and promote the up-regulation of Bax expression. Rescue experiments revealed that the cell proliferation, invasion and apoptosis were not different from NC after co-transfection of miR-144-3p-mimics+sh-PTEN and miR-144-3p-inhibitor+si-PTEN into B-CPAP and HTh-7. Conclusion Inhibition of miR-144-3p expression can up-regulate PTEN and affect cell proliferation, invasion and apoptosis, which may be a potential therapeutic target for TC.
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Affiliation(s)
- Hui-Ling Cao
- Department of Head and Neck Surgery, Chengwu Hospital Affiliated to Shandong First Medical University, Heze, Shandong, 274200, People's Republic of China
| | - Ming-Qiang Gu
- Department of General Surgery, Chengwu Hospital Affiliated to Shandong First Medical University, Heze, Shandong, 274200, People's Republic of China
| | - Zhuo Sun
- Department of Oncology, Chengwu Hospital Affiliated to Shandong First Medical University, Heze, Shandong, 274200, People's Republic of China
| | - Zhong-Jian Chen
- Department of General Surgery, Chengwu Hospital Affiliated to Shandong First Medical University, Heze, Shandong, 274200, People's Republic of China
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Yao P, Ni Y, Liu C. Long Non-Coding RNA 691 Regulated PTEN/PI3K/AKT Signaling Pathway in Osteosarcoma Through miRNA-9-5p. Onco Targets Ther 2020; 13:4597-4606. [PMID: 32547090 PMCID: PMC7250307 DOI: 10.2147/ott.s249827] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Accepted: 04/18/2020] [Indexed: 12/15/2022] Open
Abstract
Background Large amounts of researches indicate that non-coding RNAs play a crucial role in many malignancies. However, the potential mechanisms of non-coding RNAs involved in osteosarcoma tumorigenesis remain elusive. Materials and Methods The expression of long non-protein coding RNA 691 (lncRNA 691) in cell lines and paired osteosarcoma tissues was compared by qRT-PCR assay. Then, we explored the tumor suppressor function of lncRNA 691 with MTS and colony formation assay. Flow cytometry results showed lncRNA 691 can enhance cell apoptosis. Then, we predicted and verified the negative regulation relationship with miRNA and the miRNA’s target gene. Lastly, we revealed the tumorigenesis function of lncRNA-691/miRNA/target gene axis in osteosarcoma. Results In our study, we disclosed that lncRNA 691 had low expression levels in osteosarcoma cell lines and tissues. Overexpression of lncRNA 691 could suppress the cell proliferation and induce cell apoptosis in MG-63 cell line. Then, bioinformatics analyses were performed and miR-9-5p was found to negatively regulate the lncRNA 691 expression and promote the osteosarcoma tumorigenesis in vitro. PTEN was predicted as the target gene of miR-9-5p. Luciferase reporter assay and RIP assay demonstrated the regulatory network of lncRNA 691/miR-9-5p/PTEN. We revealed that PTEN was downregulated by the overexpression of miR-9-5p and upregulated by the overexpression of lncRNA 691. At last, the apoptosis-associated protein of the lncRNA 691/miR-9-5p/PTEN/PI3K/AKT was further demonstrated. Conclusion LncRNA 691/miR-9-5p could regulate the tumorigenesis by regulating the PTEN/PI3K/AKT signal pathway in osteosarcoma.
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Affiliation(s)
- Pengju Yao
- Department of Joint Surgery, Jiaozuo People's Hospital, Henan Province, People's Republic of China
| | - Yangming Ni
- Department of Joint Surgery, Jiaozuo People's Hospital, Henan Province, People's Republic of China
| | - Changlu Liu
- Department of Joint Surgery, The Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot, Inner Mongolia Autonomous Region, People's Republic of China
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Yang F, Yan Y, Yang Y, Hong X, Wang M, Yang Z, Liu B, Ye L. MiR-210 in exosomes derived from CAFs promotes non-small cell lung cancer migration and invasion through PTEN/PI3K/AKT pathway. Cell Signal 2020; 73:109675. [PMID: 32446904 DOI: 10.1016/j.cellsig.2020.109675] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 05/18/2020] [Accepted: 05/18/2020] [Indexed: 02/08/2023]
Abstract
OBJECTIVE Cancer-associated fibroblasts (CAFs) function as a crucial factor in tumor progression by carrying exosomes to neighboring cells. This study was assigned to expound the underlying mechanism of CAFs-derived exosomal miR-210 in non-small cell lung cancer (NSCLC) progression. METHOD CAFs and normal fibroblasts (NFs) were isolated and identified. Exosomes secreted from CAFs and NFs were isolated to analyze their effects on tumor volume and epithelial-mesenchymal transition (EMT). Exosomal miR-210 expression level was measured. The effects of exosomal miR-210 and UPF1 on cell viability, EMT, PTEN/PI3K/AKT signal pathway were determined. Dual-luciferase reporter gene assay was utilized to validate the binding of UPF1 to miR-210. RESULTS CAFs-derived exosomes (CAFs-exo) were successfully extracted and proven to be uptake by lung cancer cells. Up-regulated expression level of miR-210 was found in CAFs-exo, which was then proved to enhance cell migration, proliferation, invasion abilities and EMT in NSCLC cells. Overexpression of miR-210 can also inhibit UPF1 and PTEN, but activate the PTEN/PI3K/AKT pathway. UPF1 was a target gene of miR-210. MiR-210 can up-regulate UPF1 expression level to activate PTEN/PI3K/AKT pathway. CONCLUSION MiR-210 secreted by CAFs-exo could promote EMT by targeting UPF1 and activating PTEN/PI3K/AKT pathway, thereby promoting NSCLC migration and invasion.
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He W, Xu Z, Song D, Zhang H, Li B, Gao L, Zhang Y, Feng Q, Yu D, Hu L, Chen G, Tao Y, Wu X, Shi J, Zhu W. Antitumor effects of rafoxanide in diffuse large B cell lymphoma via the PTEN/PI3K/Akt and JNK/c-Jun pathways. Life Sci 2020; 243:117249. [PMID: 31926247 DOI: 10.1016/j.lfs.2019.117249] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Revised: 12/19/2019] [Accepted: 12/29/2019] [Indexed: 12/22/2022]
Abstract
AIMS Diffuse large B-cell lymphoma (DLBCL) is one of the most aggressive lymphoid malignancies, which remains incurable, thus warranting the development of new therapies. Our previous study determined that rafoxanide is very effective in treating multiple myeloma (MM). In the present study, we tried to evaluate the effects of rafoxanide on DLBCL, as well as the potential underlying molecular mechanisms. MAIN METHODS We used CCK-8 assay and flow cytometry to assess cell viability and apoptosis. The proteins and pathways associated with apoptosis and proliferation were evaluated through western blot, and xenograft mice were used as the experimental animal model. We also used the TUNEL assay and immunofluorescence for further analyses. KEY FINDINGS Treatment with different doses of rafoxanide significantly inhibited cell viability and apoptosis. Additionally, the compound induced cell cycle arrest, reduced mitochondrial membrane potential (Δψm), and stimulated reactive oxygen species (ROS) generation without the influence of normal peripheral blood monocytes (PBMCs). As expected, rafoxanide played a role in regulating these proteins and the PTEN/PI3K/AKT and JNK/c-Jun pathways. Furthermore, immunofluorescence and western blot results showed that rafoxanide upregulated H2AX phosphorylation and then inhibited DNA repair in DLBCL. In the xenograft mouse model, tumor volumes were reduced after intraperitoneal injection with rafoxanide. We also observed that TUNEL positive cells were remarkably increased in rafoxanide-treated tumor tissues. SIGNIFICANCE These results collectively provide a novel choice to regular treatment for DLBCL patients with poor prognosis.
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Affiliation(s)
- Wan He
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Zhijian Xu
- CAS Key Laboratory of Receptor Research, Drug Discovery and Design Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Dongliang Song
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Hui Zhang
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Bo Li
- CAS Key Laboratory of Receptor Research, Drug Discovery and Design Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Lu Gao
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Yong Zhang
- CAS Key Laboratory of Receptor Research, Drug Discovery and Design Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Qilin Feng
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Dandan Yu
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Liangning Hu
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Gege Chen
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Yi Tao
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Xiaosong Wu
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Jumei Shi
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China.
| | - Weiliang Zhu
- CAS Key Laboratory of Receptor Research, Drug Discovery and Design Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.
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Song Y, Cui X, Zhao R, Hu L, Li Y, Liu C. Emodin protects against lipopolysaccharide-induced inflammatory injury in HaCaT cells through upregulation of miR-21. Artif Cells Nanomed Biotechnol 2019; 47:2654-2661. [PMID: 31250665 DOI: 10.1080/21691401.2019.1629951] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Background/aim: Pressure ulcers are a disastrous health issue in which inflammation is involved. Emodin possesses biological properties in inflammation. Our study investigated functions of emodin in lipopolysaccharide (LPS)-treated HaCaT cells. Methods: LPS was used to induce cell inflammation. MTT and flow cytometry were applied for cell viability and apoptosis assays, respectively. Moreover, apoptotic proteins were detected by western blot. Similarly, inflammatory factors and signalling related proteins were also determined by western blot. Results: Emodin increased cell viability and diminished apoptosis in LPS-treated HaCaT cells. Moreover, cleaved-PARP, cleaved-caspase-3 and cleaved-caspase-9 were all downregulated by emodin. Furthermore, inflammatory factors IL-1β, IL-6, Cox-2 and iNOS were inhibited by emodin in LPS-treated cells. In addition, emodin decreased phosphorylation of p65 and IκBα and the level of PTEN while enhanced phosphorylation of PI3K and AKT. Importantly, emodin increased expression of miR-21 suppressed by LPS and miR-21 downregulation negated the protective functions of emodin. Conclusions: Emodin promoted cell growth presented by increasing viability and blocking apoptosis process with inflammation inhibition. The protective activity of emodin was mediated by miR-21 up-regulation.
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Affiliation(s)
- Yanping Song
- a Department of Health Management, Heze Medical College , Heze , China
| | - Xueling Cui
- b Department of Breast and Thyroid Surgery, Heze Municipal Hospital , Heze , China
| | - Ruilan Zhao
- c Department of General Medicine, Heze Municipal Hospital , Heze , China
| | - Lanying Hu
- d Department of Joint Surgery, Heze Municipal Hospital , Heze , China
| | - Yanjun Li
- e e Department of Nursing, Heze Medical College , Heze , China
| | - Cuiling Liu
- b Department of Breast and Thyroid Surgery, Heze Municipal Hospital , Heze , China
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Yang Q, Zhang Z, Xu H, Ma C. Lidocaine alleviates cytotoxicity-resistance in lung cancer A549/DDP cells via down-regulation of miR-21. Mol Cell Biochem 2019; 456:63-72. [PMID: 30644017 DOI: 10.1007/s11010-018-3490-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [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: 05/29/2018] [Accepted: 12/14/2018] [Indexed: 02/07/2023]
Abstract
Lidocaine (Lido) is a commonly used local anesthetic, which has been reported in various types of cells. However, the effects of Lido on lung cancer cells remain not understood. The study aimed to investigate the underlying mechanisms of Lido in the cisplatin resistance of A549/DDP cells. Different concentrations of cisplatin (0-320 µM) were used to stimulate A549 and A549/DDP cells, and cell viability and apoptosis were examined. To investigate the effect of Lido on A549/DDP cells, the optimum concentration of Lido was selected to treat A549/DDP cells, and cell viability, apoptosis, migration and invasion were then detected. The relative expression of miR-21 in A549/DDP cells or in Lido-treated A549/DDP cells was analyzed by RT-qPCR. MiR-21 mimic, inhibitor and its control were transfected into A549/DDP cells to explore the regulatory effect of miR-21 on the cisplatin resistance in A549 or A549/DDP cells. The effects of miR-21 on PTEN/PI3K/AKT and PDCD4/JNK pathways were detected by western blot. The cisplatin resistance of A549/DDP cells was higher than that of A549 cells. Lido significantly suppressed cell viability, induced apoptosis, and inhibited cell migration and invasion in A549/DDP cells. Additionally, miR-21 expression in A549/DDP was higher than that in A549 cells, and Lido significantly down-regulated miR-21 expression in A549/DDP cells. MmiR-21 inhibition exhibited the same effects as Lido on the cisplatin resistance of A549/DDP cells. Further, miR-21 suppression regulated PTEN/PI3K/AKT and PDCD4/JNK pathways in A549/DDP cells. These findings indicated that Lido alleviated the cytotoxicity resistance of A549/DDP cells via down-regulation of miR-21.
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Affiliation(s)
- Qing Yang
- Department of Anesthesiology, Huaihe Hospital of Henan University, No. 8, Baobei Road, Gulou District, Kaifeng, 475000, China
| | - Zhi Zhang
- Department of Anesthesiology, Huaihe Hospital of Henan University, No. 8, Baobei Road, Gulou District, Kaifeng, 475000, China
| | - Haixia Xu
- Department of Anesthesiology, Huaihe Hospital of Henan University, No. 8, Baobei Road, Gulou District, Kaifeng, 475000, China.
| | - Chuangen Ma
- Department of Anesthesiology, Huaihe Hospital of Henan University, No. 8, Baobei Road, Gulou District, Kaifeng, 475000, China.
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Feng Y, Hua X, Niu R, Du Y, Shi C, Zhou R, Chen FH. ROS play an important role in ATPR inducing differentiation and inhibiting proliferation of leukemia cells by regulating the PTEN/PI3K/AKT signaling pathway. Biol Res 2019; 52:26. [PMID: 31053167 DOI: 10.1186/s40659-019-0232-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Accepted: 04/06/2019] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Acute myeloid leukemia (AML) is an aggressive and mostly incurable hematological malignancy with frequent relapses after an initial response to standard chemotherapy. Therefore, novel therapies are urgently required to improve AML clinical outcomes. 4-Amino-2-trifluoromethyl-phenyl retinate (ATPR), a novel all-trans retinoic acid (ATRA) derivative designed and synthesized by our team, has been proven to show biological anti-tumor characteristics in our previous studies. However, its potential effect on leukemia remains unknown. The present research aims to investigate the underlying mechanism of treating leukemia with ATPR in vitro. METHODS In this study, the AML cell lines NB4 and THP-1 were treated with ATPR. Cell proliferation was analyzed by the CCK-8 assay. Flow cytometry was used to measure the cell cycle distribution and cell differentiation. The expression levels of cell cycle and differentiation-related proteins were detected by western blotting and immunofluorescence staining. The NBT reduction assay was used to detect cell differentiation. RESULTS ATPR inhibited cell proliferation, induced cell differentiation and arrested the cell cycle at the G0/G1 phase. Moreover, ATPR treatment induced a time-dependent release of reactive oxygen species (ROS). Additionally, the PTEN/PI3K/Akt pathway was downregulated 24 h after ATPR treatment, which might account for the anti-AML effects of ATPR that result from the ROS-mediated regulation of the PTEN/PI3K/AKT signaling pathway. CONCLUSIONS Our observations could help to develop new drugs targeting the ROS/PTEN/PI3K/Akt pathway for the treatment of AML.
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Sun B, Zhang J, Liu M, Guan L. Alkannin inhibits proliferation, migration and invasion of hepatocellular carcinoma cells via regulation of miR-92a. Biomed Pharmacother 2019; 114:108782. [PMID: 30909147 DOI: 10.1016/j.biopha.2019.108782] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 03/11/2019] [Accepted: 03/13/2019] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND/AIMS Hepatocellular carcinoma (HCC) is a leading cause of cancer-related death worldwide. In our study, we aimed to investigate the effects of alkannin on HCC cells growth, migration and invasion. METHODS Huh7 and Hep3B2.1-7 cells were treated with alkannin. Expression of miR-92a in cell was altered by transfection with miR-92a-mimic (miR-92a-M) or miR-92a-inhibitor (miR-92a-I). Cell viability, proliferation, apoptosis, migration and invasion were detected by Cell Counting Kit-8, BrdU assay, flow cytometry, and transwell assay, respectively. The expression of miR-92a was determined by quantitative real-time PCR. The expression of proteins associated with proliferation, apoptosis and metastasis was measured by Western blot. RESULTS Alkannin decreased cell viability and proliferation, executed cell apoptosis, and inhibited the migration and invasion of Huh7 and Hep3B2.1-7 cells. Alkannin negatively regulated the expression of miR-92a, and transfection with miR-92a-M impeded alkannin's anti-tumor functions. PTEN and TP53INP1 were found to be target genes of miR-92a. Alkannin inhibited PTEN-dependent PI3K/AKT pathway. Furthermore, the biological effects of miR-92a-I in alkannin treated cells were eliminated by PTEN silencing. CONCLUSION Alkannin exerted anti-tumor activities by downregulation of miR-92a. This process might be executed by inactivating PTEN/PI3K/AKT signal pathways through the binding effects of miR-92a on PTEN.
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Affiliation(s)
- Baozhen Sun
- Department of Hepatopancreatobiliary Surgery, China-Japan Union Hospital of Jilin University, Changchun 130033, China
| | - Jingzhe Zhang
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun 130033, China
| | - Meihan Liu
- Department of Ultrasound, China-Japan Union Hospital of Jilin University, Changchun 130033, China
| | - Lianyue Guan
- Department of Hepatopancreatobiliary Surgery, China-Japan Union Hospital of Jilin University, Changchun 130033, China.
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Sun XH, Wang X, Zhang Y, Hui J. Exosomes of bone-marrow stromal cells inhibit cardiomyocyte apoptosis under ischemic and hypoxic conditions via miR-486-5p targeting the PTEN/PI3K/AKT signaling pathway. Thromb Res 2019; 177:23-32. [PMID: 30844685 DOI: 10.1016/j.thromres.2019.02.002] [Citation(s) in RCA: 98] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 01/14/2019] [Accepted: 02/01/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND Myocardial ischemia-reperfusion injury (MIRI) is a major obstacle in the treatment of ischemic heart disease. Recent studies have shown that exosomes-small membrane vesicles secreted by most cell types-could have a protective effect on the ischemic myocardium. In this study we explored the effect of exosomes derived from bone-marrow stromal cells (BMSC-exo) on cardiomyocyte apoptosis and MIRI. METHODS Exosomes were purified from culture media using the ExoQuick kit and observed using transmission electron microscopy. Cell viability was assessed by 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide (MTT) assay. Cell apoptosis was analyzed by flow cytometry using the Annexin-V/PI stain. The expression levels of microRNA (miRNA), messenger RNA (mRNA) and PTEN/PI3K/AKT-pathway-related proteins were detected by qRT-PCR and western blot, respectively. Myocardial ischemia was simulated by incubating H9C2 cells in a hypoxia/reoxygenation (H/R) conditioned rat MIRI model. RESULTS BMSC-exo induced the proliferation of H9C2 cells and rescued H9C2 cells from apoptosis in the H/R model, indicating that BMSC-exo has a protective effect on cardiomyocyte injury caused by H/R. Using transgenic H9C2 cells, we found that miR-486-5p in BMSC-exo suppressed the H/R-triggered apoptosis of H9C2 cells. In addition, BMSC-exo repressed the expression of PTEN in H9C2 cells via miR-486-5p, and subsequently activated the PI3K/AKT pathway in vitro. Moreover, the myocardial injury caused by ischemia/reperfusion was repaired by BMSC-exo which activates the PI3K/AKT pathway via miR-486-5p in vivo. CONCLUSION Our results suggested that exosomes from BMSCs have a protective effect on myocardium ischemic injury. MiR-486-5p carried by BMSC-exo plays a pivotal role in the regulatory process by suppressing PTEN expression, activating the PI3K/AKT signaling pathway, and subsequently inhibiting the apoptosis of injured cardiomyocytes.
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Affiliation(s)
- Xiang-Hua Sun
- Department of Cardiology, The First Affiliated Hospital of Soochow University, Suzhou 215006, PR China; Department of Cardiology, Shaoyang Central Hospital, Shaoyang 422000, PR China
| | - Xu Wang
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Soochow University, Suzhou 215006, PR China
| | - You Zhang
- Department of Cardiology, The Second Affiliated Hospital of Soochow University, Suzhou 215004, PR China
| | - Jie Hui
- Department of Cardiology, The First Affiliated Hospital of Soochow University, Suzhou 215006, PR China.
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Liang HX, Sun LB, Liu NJ. Neferine inhibits proliferation, migration and invasion of U251 glioma cells by down-regulation of miR-10b. Biomed Pharmacother 2019; 109:1032-40. [PMID: 30551353 DOI: 10.1016/j.biopha.2018.10.122] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 10/16/2018] [Accepted: 10/20/2018] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Glioma is a common brain tumor, which is a serious threat to the life and health of human with high mortality rate. Recently, neferine (NEF) has been reported to play an important role in various cancers. In the study, we aimed to investigate the effect of NEF on human glioma cell line U251. METHODS U251 cells were pre-treated with different concentrations of NEF, and then CCK-8, BrdU, flow cytometry and transwell assays were used to test cell proliferation, apoptosis, migration and invasion. Subsequently, the expression vectors of miR-10b mimic and miR-10b inhibitor were transfected into U251 cells, and the relative expression of miR-10b was examined by qRT-PCR. The main proteins of CyclinD1/p53/p16, pro-Caspase-3/-9, cleaved-Caspase-3/-9, MMP-9, Vimentin, PTEN/PI3K/AKT and p38MAPK signal pathways were determined by western blot assay. RESULTS NEF significantly suppressed cell proliferation, and induced apoptosis, as well as regulated CyclinD1, p53, p16 and cleaved-Caspase-3/-9 expressions in U251 cells. Moreover, NEF inhibited cell migration, invasion and decreased MMP-9 and Vimentin expression in U251 cells. Additionally, miR-10b expression was down-regulated in NEF-stimulated cells, and overexpression of miR-10b reversed the regulatory effects of NEF on U251 cells proliferation, migration, invasion and apoptosis. Additionally, we found that PTEN was a direct target of miR-10b in U251 cells. Besides, NEF deactivated PTEN/PI3K/AKT and p38MAPK signal pathways by down-regulation of miR-10b in U251 cells. CONCLUSIONS These results suggested that NEF exerted anti-tumor effect by down-regulation of miR-10b and deactivation of PTEN/PI3K/AKT and p38MAPK signal pathways in glioma cells. These findings might provide a novel therapeutic strategy for glioma.
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Han M, Chen L, Wang Y. miR-218 overexpression suppresses tumorigenesis of papillary thyroid cancer via inactivation of PTEN/PI3K/AKT pathway by targeting Runx2. Onco Targets Ther 2018; 11:6305-6316. [PMID: 30319270 PMCID: PMC6167989 DOI: 10.2147/ott.s172152] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Background It was previously reported that downregulation of miR-218 promoted thyroid cancer cell invasion, migration, and proliferation. However, the biological functions of miR-218 and its possible regulatory mechanisms in papillary thyroid cancer (PTC) cells are still elusive. Materials and methods The expression levels of miR-218 and Runx2 in PTC tissues and cells were determined by quantitative real-time PCR (qRT-PCR) and Western blot. The effects of miR-218 overexpression on cell viability, invasion, apoptosis, and PTEN/PI3K/AKT pathway in PTC cells were evaluated by cell counting kit-8 assay, Transwell invasion assay, flow cytometry assay, and Western blot, respectively. Luciferase reporter assay and qRT-PCR were performed to identify the target of miR-218. Xenograft tumor experiment was performed to confirm the biological roles of miR-218 and its potential mechanisms in vivo. Results miR-218 expression was downregulated and Runx2 expression was upregulated in PTC tissues and cells. Overexpression of miR-218 suppressed viability and invasion, and induced apoptosis of PTC cells in vitro, while Runx2 overexpression greatly abolished these effects. miR-218 overexpression inactivated the PTEN/PI3K/AKT pathway, which was abated by Runx2 upregulation. Additionally, Runx2 was validated to be a direct target of miR-218. Moreover, enforced expression of miR-218 inhibited tumor growth and Runx2 expression, and blocked PTEN/PI3K/AKT pathway in vivo. Conclusion miR-218 overexpression suppresses the tumorigenesis of PTC via downregulating PTEN/PI3K/AKT pathway by targeting Runx2, which indicates that miR-218 may be a potential therapeutic target for human PTC.
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Affiliation(s)
- Mingkun Han
- Department of Otolaryngology Head and Neck Surgery, Chinese People's Liberation Army General Hospital, Beijing 100853, China,
| | - Liwei Chen
- Department of Otolaryngology Head and Neck Surgery, Chinese People's Liberation Army General Hospital, Beijing 100853, China,
| | - Yang Wang
- Department of Otolaryngology Head and Neck Surgery, Chinese People's Liberation Army General Hospital, Beijing 100853, China,
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Han X, Liu CF, Gao N, Zhao J, Xu J. Kaempferol suppresses proliferation but increases apoptosis and autophagy by up-regulating microRNA-340 in human lung cancer cells. Biomed Pharmacother 2018; 108:809-816. [PMID: 30253373 DOI: 10.1016/j.biopha.2018.09.087] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 08/16/2018] [Accepted: 09/15/2018] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Lung cancer is a leading cause of cancer-related deaths worldwide with unsatisfied prognosis. Kaempferol is a dietary flavonoid that inhibits tumorgenesis, and we aimed to uncover the underlying mechanism of kaempferol in lung cancer cells. METHODS A549 cells were stimulated with kaempferol, and then cell proliferation, apoptosis, autophagy and expression of miR-340 were assessed. Subsequently, effects of kaempferol on protein expression of phosphatase with tensin homology (PTEN) and key kinases in the phosphatidylinositol-3-kinase (PI3K)/AKT pathways were detected by Western blot analysis. Moreover, the effects of miR-340 inhibition on kaempferol-induced alterations in A549 cells were also studied. RESULTS Cell viability, proliferation and cyclinD1 expression level in A549 cells were all reduced by kaempferol. Conversely, cell apoptosis and autophagy were promoted by kaempferol. We found autophagy promoted apoptosis in kaempferol-treated A549 cells. Then, expression of miR-340 was identified to be up-regulated by kaempferol treatment. After treatments with kaempferol, PTEN level was elevated and levels of p-PI3K and p-AKT were decreased. Moreover, the alterations induced by kaempferol were abrogated by miR-340 inhibition. CONCLUSION Kaempferol inhibited proliferation but induced apoptosis and autophagy in A549 cells. Additionally, kaempferol might function through up-regulating miR-340, along with up-regulation of PTEN and inactivation of the PI3K/AKT pathway.
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Affiliation(s)
- Xue Han
- Department of Respiratory Medicine, Dalian Municipal Central Hospital, Dalian, 116033, China
| | - Chun-Fang Liu
- Department of Respiratory Medicine, Dalian Municipal Central Hospital, Dalian, 116033, China
| | - Na Gao
- Department of Respiratory Medicine, Dalian Municipal Central Hospital, Dalian, 116033, China
| | - Jing Zhao
- Department of Respiratory Medicine, Dalian Municipal Central Hospital, Dalian, 116033, China
| | - Jian Xu
- Department of Respiratory Medicine, Dalian Municipal Central Hospital, Dalian, 116033, China.
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Yao H, Su S, Xia D, Wang M, Li Z, Chen W, Ren L, Xu L. F-box and leucine-rich repeat protein 5 promotes colon cancer progression by modulating PTEN/PI3K/AKT signaling pathway. Biomed Pharmacother 2018; 107:1712-9. [PMID: 30257389 DOI: 10.1016/j.biopha.2018.08.119] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 08/23/2018] [Accepted: 08/23/2018] [Indexed: 12/16/2022] Open
Abstract
The hyper-activation of PI3K/AKT signaling is common in many kinds of malignant tumors and promotes cell growth. Moreover, FBXL5 is reported to play an important role in the progression of gastric cancer and cervical cancer. In this view, this study aims to explore the function of FBXL5 in the progression of colon cancer and determine if PI3K/AKT signaling pathway involves in this process. Western blotting, RT-PCR, and immunohistochemistry were used to detect the expression pattern of FBXL5 in colon cancer tissues and cell lines. Immunofluorescence, Duolink, and immunoprecipitation (IP) assays were performed to evaluate the interaction between FBXL5 and PI3K/AKT signaling. Results showed that FBXL5 was elevated in colon cancer tissues and cells, which had physical interaction with PTEN protein and negatively regulated its expression, whereas positively modulated PI3K, AKT and mTOR expression and their phosphorylation. Besides, FBXL5 promoted cell proliferation and tumorigenesis and inhibited apoptosis by modulating PTEN/PI3K/AKT signaling. In conclusion, this study demonstrated that FBXL5 functioned as an oncogene in the progression of colon cancer through regulating PTEN/PI3K/AKT signaling.
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Tang H, Hou B, Ye Z, Ling C, Guo Y. Knockdown of long non-coding RNA AFAP1-AS1 inhibits growth and promotes apoptosis in pituitary adenomas. Int J Clin Exp Pathol 2018; 11:1238-1246. [PMID: 31938218 PMCID: PMC6958144] [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] [Subscribe] [Scholar Register] [Received: 10/15/2017] [Accepted: 10/30/2017] [Indexed: 06/10/2023]
Abstract
Recent studies have reported that the long non-coding RNA (lncRNA) AFAP antisense RNA 1 (AFAP1-AS1) is involved in various biological processes and plays a key role in regulating cancer growth and metastasis in humans. However, its effects on tumorigenesis in pituitary adenomas remain unclear. The present study investigated the expression and biological role of AFAP1-AS1 in pituitary adenomas. We observed that the expression of AFAP1-AS1 was considerably higher in the pituitary adenoma tissues as compared to its expression in the adjacent tissues. Additionally, knockdown of AFAP1-AS1 inhibited the proliferation, arrested the cell cycle in the G1-to-S transition phase, and promoted apoptosis in GH3 and MMQ cells. Finally, knockdown of AFAP1-AS1 also promoted the expression of PTEN and inhibited the expression of PI3K and p-AKT. Our results provided novel insights into the function and mechanism of action of AFAP1-AS1 in the pathogenesis of pituitary adenomas.
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Affiliation(s)
- Hengxin Tang
- Department of Neurosurgery, Third Affiliated Hospital, Sun Yat-sen University Guangzhou, Guangdong, China
| | - Bo Hou
- Department of Neurosurgery, Third Affiliated Hospital, Sun Yat-sen University Guangzhou, Guangdong, China
| | - Zhuopeng Ye
- Department of Neurosurgery, Third Affiliated Hospital, Sun Yat-sen University Guangzhou, Guangdong, China
| | - Cong Ling
- Department of Neurosurgery, Third Affiliated Hospital, Sun Yat-sen University Guangzhou, Guangdong, China
| | - Ying Guo
- Department of Neurosurgery, Third Affiliated Hospital, Sun Yat-sen University Guangzhou, Guangdong, China
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Tan MC, Widagdo J, Chau YQ, Zhu T, Wong JJL, Cheung A, Anggono V. The Activity-Induced Long Non-Coding RNA Meg3 Modulates AMPA Receptor Surface Expression in Primary Cortical Neurons. Front Cell Neurosci 2017; 11:124. [PMID: 28515681 PMCID: PMC5413565 DOI: 10.3389/fncel.2017.00124] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Accepted: 04/12/2017] [Indexed: 11/13/2022] Open
Abstract
Transcription of new RNA is crucial for maintaining synaptic plasticity, learning and memory. Although the importance of synaptic plasticity-related messenger RNAs (mRNAs) is well established, the role of a large group of long non-coding RNAs (lncRNAs) in long-term potentiation (LTP) is not known. In this study, we demonstrated the expression of a lncRNA cluster, namely maternally expressed gene 3 (Meg3), retrotransposon-like gene 1-anti-sense (Rtl1-AS), Meg8 and Meg9, which is located in the maternally imprinted Dlk1-Dio3 region on mouse chromosome 12qF1, in primary cortical neurons following glycine stimulation in an N-Methyl-D-aspartate receptor (NMDAR)-dependent manner. Importantly, we also validated the expression of Meg3, Meg8 and Meg9 in the hippocampus of mice following cued fear conditioning in vivo. Interestingly, Meg3 is the only lncRNA that is expressed in the nucleus and cytoplasm. Further analysis revealed that Meg3 loss of function blocked the glycine-induced increase of the GluA1 subunit of AMPA receptors on the plasma membrane, a major hallmark of LTP. This aberrant trafficking of AMPA receptors correlated with the dysregulation of the phosphatidylinoside-3-kinase (PI3K)/AKT signaling pathway and the downregulation of the lipid phosphatase and tensin homolog (PTEN). These findings provide the first evidence for a functional role of the lncRNA Meg3 in the intricate regulation of the PTEN/PI3K/AKT signaling cascade during synaptic plasticity in neurons.
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Affiliation(s)
- Men C Tan
- Clem Jones Centre for Ageing Dementia Research, The University of QueenslandBrisbane, QLD, Australia.,Queensland Brain Institute, The University of QueenslandBrisbane, QLD, Australia
| | - Jocelyn Widagdo
- Clem Jones Centre for Ageing Dementia Research, The University of QueenslandBrisbane, QLD, Australia.,Queensland Brain Institute, The University of QueenslandBrisbane, QLD, Australia
| | - Yu Q Chau
- Clem Jones Centre for Ageing Dementia Research, The University of QueenslandBrisbane, QLD, Australia.,Queensland Brain Institute, The University of QueenslandBrisbane, QLD, Australia
| | - Tianyi Zhu
- Clem Jones Centre for Ageing Dementia Research, The University of QueenslandBrisbane, QLD, Australia.,Queensland Brain Institute, The University of QueenslandBrisbane, QLD, Australia
| | - Justin J-L Wong
- Gene and Stem Cell Therapy Program, Centenary InstituteSydney, NSW, Australia.,Sydney Medical School, University of SydneySydney, NSW, Australia
| | - Allen Cheung
- Queensland Brain Institute, The University of QueenslandBrisbane, QLD, Australia
| | - Victor Anggono
- Clem Jones Centre for Ageing Dementia Research, The University of QueenslandBrisbane, QLD, Australia.,Queensland Brain Institute, The University of QueenslandBrisbane, QLD, Australia
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Gu S, Xie R, Liu X, Shou J, Gu W, Che X. Long Coding RNA XIST Contributes to Neuronal Apoptosis through the Downregulation of AKT Phosphorylation and Is Negatively Regulated by miR-494 in Rat Spinal Cord Injury. Int J Mol Sci 2017; 18:ijms18040732. [PMID: 28368292 PMCID: PMC5412318 DOI: 10.3390/ijms18040732] [Citation(s) in RCA: 88] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Revised: 03/17/2017] [Accepted: 03/22/2017] [Indexed: 01/16/2023] Open
Abstract
Recent evidence has suggested that long non-coding RNAs (lncRNAs) may play a significant role in the pathogenesis of several neurological diseases, including spinal cord injury (SCI). However, little is known about the role of lncRNAs in SCI. The aim of the present study was to evaluate the potential functions of lncRNAs in SCI and to identify the underlying mechanisms of action. We firstly analyzed Gene Expression Omnibus (GEO) datasets to investigate aberrantly-expressed lncRNAs which might be involved in the pathogenesis of SCI. The long non-coding RNA X-inactive specific transcript (XIST) was found to be one of the most significantly upregulated lncRNAs in the GEO dataset analysis, and is associated with apoptosis. We, therefore, selected this as a candidate lncRNA and investigated its function. We found that knockdown of lncRNA-XIST by Lv-shRNA had a prominent protective effect on SCI recovery by suppressing apoptosis through reactivation of the PI3K/AKT signaling pathway in rat spinal cord tissue. In particular, our results suggested that lncRNA-XIST may act as a competitive endogenous RNA, effectively becoming a sink for miR-494, leading to derepression of its target gene, phosphatase and tensin homolog deleted on chromosome ten (PTEN). In addition, an inverse relationship between lncRNA-XIST and miR-494 was observed in spinal cord tissues of SCI rats. Further study demonstrated that antagomiR-494 could reverse the protective effects of lncRNA-XIST knockdown on SCI rats through blocking the PTEN/PI3K/AKT signaling pathway. These results suggested that lncRNA-XIST knockdown may play an important role in limiting neuronal apoptosis in rats following SCI, and that the observed protective effects of lncRNA-XIST knockdown might have been mediated by its regulation on the phosphorylation of AKT by competitively binding miR-494. These findings have revealed, for the first time, the importance of the XIST/miR-494/PTEN/AKT signaling axis in the pathogenesis of SCI and suggest that lncRNA-XIST may be a promising molecular target for SCI therapy.
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Affiliation(s)
- Shixin Gu
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai 200040, China.
| | - Rong Xie
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai 200040, China.
| | - Xiaodong Liu
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai 200040, China.
| | - Jiajun Shou
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai 200040, China.
| | - Wentao Gu
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai 200040, China.
| | - Xiaoming Che
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai 200040, China.
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Yang NQ, Luo XJ, Zhang J, Wang GM, Guo JM. Crosstalk between Meg3 and miR-1297 regulates growth of testicular germ cell tumor through PTEN/PI3K/AKT pathway. Am J Transl Res 2016; 8:1091-1099. [PMID: 27158395 PMCID: PMC4846952] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2016] [Accepted: 01/17/2016] [Indexed: 06/05/2023]
Abstract
Maternally Expressed Gene 3 (Meg3) encodes a long non-coding RNA that has been recently shown to regulate tumorigenesis through its interaction with microRNA (miR). We have recently reported that miR-1297 might play a role in the regulation of PTEN/PI3k/Akt signaling pathway in testicular germ cell tumor (TGCT). However, a crosstalk between Meg3 and miR-1297 in TGCT has not been appreciated. Here, we analyzed the levels of Meg3, miR-1297 and PTEN in TGCT specimens, compared to paired adjacent non-tumor tissue (NT), and found that Meg3 levels were significantly decreased and miR-1297 levels were unchanged in TGCT. PTEN protein but not mRNA levels significantly decreased in TGCT. Bioinformatics analyses showed that miR-1297 bound to 3'-UTR of PTEN mRNA, while miR-1297 also bound to Meg3. Luciferase report assay showed that Meg3 overexpression abolished the effects of miR-1297 on 3'-UTR of PTEN mRNA, possibly through competitive binding, which was supported by double fluorescent in situ hybridization showing co-localization of intracellular Meg3 and miR-1297 signals in TGCT cells. Moreover, Meg3 overexpression abolished the inhibitory effects of miR-1297 on PTEN, resulting in deactivation of Akt and decreases in cell growth. Together, these data demonstrate a previous unappreciated pathway in which Crosstalk between Meg3 and miR-1297 regulates growth of TFCT through PTEN/PI3K/AKT signaling. Re-expression of Meg3 may be an attractive strategy for TGCT therapy.
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Affiliation(s)
- Nian-Qin Yang
- Department of Urology, Zhongshan Hospital, Fudan UniversityShanghai 200032, China
| | - Xiao-Jin Luo
- Department of Urology, The People’s Hospital of Yichun CityJiangxi 336028, China
| | - Jian Zhang
- Department of Urology, Zhongshan Hospital, Fudan UniversityShanghai 200032, China
| | - Guo-Min Wang
- Department of Urology, Zhongshan Hospital, Fudan UniversityShanghai 200032, China
| | - Jian-Ming Guo
- Department of Urology, Zhongshan Hospital, Fudan UniversityShanghai 200032, China
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