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Hu X, He Y, Tong Y, Sun N, Ma G, Liu H, Kou N. Fabrication and characterization of a multi-functional GBR membrane of gelatin-chitosan for osteogenesis and angiogenesis. Int J Biol Macromol 2024; 266:130978. [PMID: 38508565 DOI: 10.1016/j.ijbiomac.2024.130978] [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: 06/11/2023] [Revised: 03/01/2024] [Accepted: 03/16/2024] [Indexed: 03/22/2024]
Abstract
Guided bone regeneration (GBR) membranes are widely used to treat bone defects. In this study, sequential electrospinning and electrospraying techniques were used to prepare a dual-layer GBR membrane composed of gelatin (Gel) and chitosan (CS) containing simvastatin (Sim)-loaded poly(lactic-co-glycolic acid) (PLGA) microspheres (Sim@PLGA/Gel-CS). As a GBR membrane, Sim@PLGA/Gel-CS could act as a barrier to prevent soft tissue from occupying regions of bone tissue. Furthermore, compared with traditional GBR membranes, Sim@PLGA/Gel-CS played an active role on stimulating osteogenesis and angiogenesis. Determination of the physical, chemical, and biological properties of Sim@PLGA/Gel-CS membranes revealed uniform sizes of the nanofibers and microspheres and appropriate morphologies. Fourier-transform infrared spectroscopy was used to characterize the interactions between Sim@PLGA/Gel-CS molecules and the increase in the number of amide groups in crosslinked membranes. The thermal stability and tensile strength of the membranes increased after N-(3-dimethylaminopropyl)-N9- ethylcarbodiimide/N-hydroxysuccinimide crosslinking. The increased fiber density of the barrier layer decreased fibroblast migration compared with that in the osteogenic layer. Osteogenic function was indicated by the increased alkaline phosphatase activity, calcium deposition, and neovascularization. In conclusion, the multifunctional effects of Sim@PLGA/Gel-CS on the barrier and bone microenvironment were achieved via its dual-layer structure and simvastatin coating. Sim@PLGA/Gel-CS has potential applications in bone tissue regeneration.
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Affiliation(s)
- Xiaofei Hu
- School of Stomatology, Dalian Medical University, Lvshun South Road, Dalian, China; Academician Laboratory of Immune and Oral Development & Regeneration, Dalian Medical University, Lvshun South Road, Dalian, China
| | - Yuzhu He
- School of Stomatology, Dalian Medical University, Lvshun South Road, Dalian, China; Academician Laboratory of Immune and Oral Development & Regeneration, Dalian Medical University, Lvshun South Road, Dalian, China
| | - Yunmeng Tong
- School of Stomatology, Dalian Medical University, Lvshun South Road, Dalian, China; Academician Laboratory of Immune and Oral Development & Regeneration, Dalian Medical University, Lvshun South Road, Dalian, China
| | - Na Sun
- School of Materials Science and Engineering, Dalian University of Technology, No.2 Linggong Road, Ganjingzi District, Dalian, China
| | - Guowu Ma
- School of Stomatology, Dalian Medical University, Lvshun South Road, Dalian, China; Academician Laboratory of Immune and Oral Development & Regeneration, Dalian Medical University, Lvshun South Road, Dalian, China.
| | - Huiying Liu
- School of Stomatology, Dalian Medical University, Lvshun South Road, Dalian, China; Academician Laboratory of Immune and Oral Development & Regeneration, Dalian Medical University, Lvshun South Road, Dalian, China.
| | - Ni Kou
- School of Stomatology, Dalian Medical University, Lvshun South Road, Dalian, China; Academician Laboratory of Immune and Oral Development & Regeneration, Dalian Medical University, Lvshun South Road, Dalian, China.
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2
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Kanazawa H, Shimoda T, Kou N, Okamura Y, Ito H. Optic nerve sheath diameter measurement using ultrasonography: associations with in-hospital mortality in COVID-19 intensive care unit admissions. QJM 2023; 116:617-618. [PMID: 37079750 DOI: 10.1093/qjmed/hcad070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Indexed: 04/22/2023] Open
Affiliation(s)
- H Kanazawa
- The University of Texas Health Science Center at Tyler, Tyler, TX, USA
| | - T Shimoda
- University of Tsukuba Hospital, Tsukuba, Ibaraki, Japan
| | - N Kou
- Chiba University Hospital, Chiba, Chiba, Japan
| | - Y Okamura
- College of Medicine, School of Medicine and Health Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - H Ito
- Division of General Internal Medicine, Department of Internal Medicine, Tokyo Medical University Ibaraki Medical Center, Ibaraki, Japan
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Li L, Wen Z, Kou N, Liu J, Jin D, Wang L, Wang F, Gao L. LIS1 interacts with CLIP170 to promote tumor growth and metastasis via the Cdc42 signaling pathway in salivary gland adenoid cystic carcinoma. Int J Oncol 2022; 61:129. [PMID: 36102310 PMCID: PMC9477107 DOI: 10.3892/ijo.2022.5419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Accepted: 08/05/2022] [Indexed: 11/20/2022] Open
Abstract
Salivary gland adenoid cystic carcinoma (SACC) is one of the most common malignant tumors, with high aggressive potential in the oral and maxillofacial regions. Lissencephaly 1 (LIS1) is a microtubule-organizing center-associated protein that regulates the polymerization and stability of microtubules by mediating the motor function of dynein. Recent studies have suggested that LIS1 plays a potential role in the malignant development of tumors, such as in mitosis and migration. However, the role of LIS1 in SACC development and its related molecular mechanisms remain unclear. Thus, the effects of LIS1 on the proliferation, apoptosis, invasion and metastasis of SACC were studied, in vivo and in vitro. The results of immunohistochemical staining showed that LIS1 was highly expressed in SACC tissues, and its expression level was associated with malignant progression. In vitro, the results of CCK-8, TUNEL, wound healing and Transwell assays demonstrated that LIS1 promotes proliferation, inhibits apoptosis, and enhances the migration and invasion of SACC-LM cells. In vivo, knockdown of LIS1 effectively suppressed the growth of subcutaneous tumors in a mouse xenograft and distant metastasis of tumor cells in the metastasis model. The co-immunoprecipitation, immunofluorescence and western blot results also revealed that LIS1 binds to cytoplasmic linker protein 170 (CLIP170) to form a protein complex (LIS1/CLIP170), which activates the cell division control protein 42 homolog (Cdc42) signaling pathway to modulate the proliferation and anti-apoptosis of tumor cells, and enhanced invasion and metastasis by regulating the formation of invadopodia and the expression of MMPs in SACC-LM cells. Therefore, the present study demonstrated that LIS1 is a cancer promoter in SACC, and the molecular mechanism of the LIS1/CLIP170/Cdc42 signaling pathway is involved in the malignant progression, which offers a promising strategy for targeted therapy of SACC.
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Affiliation(s)
- Lijun Li
- School of Stomatology, Dalian Medical University, Dalian, Liaoning 116044, P.R. China
| | - Zhihao Wen
- School of Stomatology, Dalian Medical University, Dalian, Liaoning 116044, P.R. China
| | - Ni Kou
- School of Stomatology, Dalian Medical University, Dalian, Liaoning 116044, P.R. China
| | - Jing Liu
- School of Stomatology, Dalian Medical University, Dalian, Liaoning 116044, P.R. China
| | - Dong Jin
- School of Stomatology, Dalian Medical University, Dalian, Liaoning 116044, P.R. China
| | - Lina Wang
- School of Stomatology, Dalian Medical University, Dalian, Liaoning 116044, P.R. China
| | - Fu Wang
- School of Stomatology, Dalian Medical University, Dalian, Liaoning 116044, P.R. China
| | - Lu Gao
- School of Stomatology, Dalian Medical University, Dalian, Liaoning 116044, P.R. China
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Fu W, Liu S, Jiao J, Xie Z, Huang X, Lu Y, Liu H, Hu S, Zuo E, Kou N, Ma G. Wear Resistance and Biocompatibility of Co-Cr Dental Alloys Fabricated with CAST and SLM Techniques. Materials 2022; 15:ma15093263. [PMID: 35591597 PMCID: PMC9104588 DOI: 10.3390/ma15093263] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 04/21/2022] [Accepted: 04/28/2022] [Indexed: 12/15/2022]
Abstract
Cobalt–chromium (Co-Cr) alloys have been widely used as dental-restoration materials for many years. This study sought to investigate whether selective laser melting (SLM) is a more appropriate process than traditional casting (CAST) for fabricating dental Co-Cr alloys. Metallurgical microscopy, X-ray photoelectron spectroscopy (XPS), Vickers hardness and nanoindentation tests, and friction and wear tests were used to evaluate the microstructure, surface compositions, mechanical properties, and wear resistance, respectively. Additionally, the biocompatibilities and cell adhesion of the alloys were evaluated with L-929 fibroblasts via CCK-8 assay, Live/Dead staining, flow cytometric analysis, scanning electron microscopy (SEM) observation and real-time PCR (RT-PCR) assay. The XPS results showed that the two alloys were all mainly comprised of Co, Cr, and O. The hardness in the CAST group equaled 7.15 ± 0.48 GPa, while in the SLM group, it equaled 9.06 ± 0.49 GPa. The friction coefficient of SLM alloys remained at approximately 0.46, but the CAST specimens fluctuated significantly. SLM alloys exhibited shallower wear scars and less wear debris compared with CAST alloys, simultaneously. Additionally, there were higher survival and expression of cell-adhesion-related genes on SLM alloys of L-929 cells, which meant that the deleterious effect on L-929 cells was significantly reduced compared with that for the CAST alloys. Overall, the wear resistances and biocompatibilities of the Co-Cr dental alloys were dramatically affected by the fabrication technique. The SLM technique is advantageous over the CAST technique for fabricating Co-Cr dental alloys.
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Affiliation(s)
- Wenqi Fu
- Department of Oral Prosthodontics, School of Stomatology, Dalian Medical University, Lvshun South Road, Dalian 116044, China; (W.F.); (S.L.); (J.J.); (Y.L.); (H.L.); (S.H.); (E.Z.)
- Academician Laboratory of Immune and Oral Development & Regeneration, Dalian Medical University, Lvshun South Road, Dalian 116044, China
| | - Shuang Liu
- Department of Oral Prosthodontics, School of Stomatology, Dalian Medical University, Lvshun South Road, Dalian 116044, China; (W.F.); (S.L.); (J.J.); (Y.L.); (H.L.); (S.H.); (E.Z.)
- Academician Laboratory of Immune and Oral Development & Regeneration, Dalian Medical University, Lvshun South Road, Dalian 116044, China
| | - Jun Jiao
- Department of Oral Prosthodontics, School of Stomatology, Dalian Medical University, Lvshun South Road, Dalian 116044, China; (W.F.); (S.L.); (J.J.); (Y.L.); (H.L.); (S.H.); (E.Z.)
- Academician Laboratory of Immune and Oral Development & Regeneration, Dalian Medical University, Lvshun South Road, Dalian 116044, China
| | - Zhiwen Xie
- School of Mechanical Engineering and Automation, University of Science and Technology Liaoning, Anshan 114051, China; (Z.X.); (X.H.)
| | - Xinfang Huang
- School of Mechanical Engineering and Automation, University of Science and Technology Liaoning, Anshan 114051, China; (Z.X.); (X.H.)
| | - Yun Lu
- Department of Oral Prosthodontics, School of Stomatology, Dalian Medical University, Lvshun South Road, Dalian 116044, China; (W.F.); (S.L.); (J.J.); (Y.L.); (H.L.); (S.H.); (E.Z.)
- Academician Laboratory of Immune and Oral Development & Regeneration, Dalian Medical University, Lvshun South Road, Dalian 116044, China
| | - Huiying Liu
- Department of Oral Prosthodontics, School of Stomatology, Dalian Medical University, Lvshun South Road, Dalian 116044, China; (W.F.); (S.L.); (J.J.); (Y.L.); (H.L.); (S.H.); (E.Z.)
- Academician Laboratory of Immune and Oral Development & Regeneration, Dalian Medical University, Lvshun South Road, Dalian 116044, China
| | - Shuhai Hu
- Department of Oral Prosthodontics, School of Stomatology, Dalian Medical University, Lvshun South Road, Dalian 116044, China; (W.F.); (S.L.); (J.J.); (Y.L.); (H.L.); (S.H.); (E.Z.)
- Academician Laboratory of Immune and Oral Development & Regeneration, Dalian Medical University, Lvshun South Road, Dalian 116044, China
| | - Enjun Zuo
- Department of Oral Prosthodontics, School of Stomatology, Dalian Medical University, Lvshun South Road, Dalian 116044, China; (W.F.); (S.L.); (J.J.); (Y.L.); (H.L.); (S.H.); (E.Z.)
- Academician Laboratory of Immune and Oral Development & Regeneration, Dalian Medical University, Lvshun South Road, Dalian 116044, China
| | - Ni Kou
- Department of Oral Prosthodontics, School of Stomatology, Dalian Medical University, Lvshun South Road, Dalian 116044, China; (W.F.); (S.L.); (J.J.); (Y.L.); (H.L.); (S.H.); (E.Z.)
- Academician Laboratory of Immune and Oral Development & Regeneration, Dalian Medical University, Lvshun South Road, Dalian 116044, China
- Correspondence: (N.K.); (G.M.)
| | - Guowu Ma
- Department of Oral Prosthodontics, School of Stomatology, Dalian Medical University, Lvshun South Road, Dalian 116044, China; (W.F.); (S.L.); (J.J.); (Y.L.); (H.L.); (S.H.); (E.Z.)
- Academician Laboratory of Immune and Oral Development & Regeneration, Dalian Medical University, Lvshun South Road, Dalian 116044, China
- Correspondence: (N.K.); (G.M.)
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Bai J, Li L, Kou N, Bai Y, Zhang Y, Lu Y, Gao L, Wang F. Low level laser therapy promotes bone regeneration by coupling angiogenesis and osteogenesis. Stem Cell Res Ther 2021; 12:432. [PMID: 34344474 PMCID: PMC8330075 DOI: 10.1186/s13287-021-02493-5] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [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: 03/21/2021] [Accepted: 07/04/2021] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Bone tissue engineering is a new concept bringing hope for the repair of large bone defects, which remains a major clinical challenge. The formation of vascularized bone is key for bone tissue engineering. Growth of specialized blood vessels termed type H is associated with bone formation. In vivo and in vitro studies have shown that low level laser therapy (LLLT) promotes angiogenesis, fracture healing, and osteogenic differentiation of stem cells by increasing reactive oxygen species (ROS). However, whether LLLT can couple angiogenesis and osteogenesis, and the underlying mechanisms during bone formation, remains largely unknown. METHODS Mouse bone marrow mesenchymal stem cells (BMSCs) combined with biphasic calcium phosphate (BCP) grafts were implanted into C57BL/6 mice to evaluate the effects of LLLT on the specialized vessel subtypes and bone regeneration in vivo. Furthermore, human BMSCs and human umbilical vein endothelial cells (HUVECs) were co-cultured in vitro. The effects of LLLT on cell proliferation, angiogenesis, and osteogenesis were assessed. RESULTS LLLT promoted the formation of blood vessels, collagen fibers, and bone tissue and also increased CD31hiEMCNhi-expressing type H vessels in mBMSC/BCP grafts implanted in mice. LLLT significantly increased both osteogenesis and angiogenesis, as well as related gene expression (HIF-1α, VEGF, TGF-β) of grafts in vivo and of co-cultured BMSCs/HUVECs in vitro. An increase or decrease of ROS induced by H2O2 or Vitamin C, respectively, resulted in an increase or decrease of HIF-1α, and a subsequent increase and decrease of VEGF and TGF-β in the co-culture system. The ROS accumulation induced by LLLT in the co-culture system was significantly decreased when HIF-1α was inhibited with DMBPA and was followed by decreased expression of VEGF and TGF-β. CONCLUSIONS LLLT enhanced vascularized bone regeneration by coupling angiogenesis and osteogenesis. ROS/HIF-1α was necessary for these effects of LLLT. LLLT triggered a ROS-dependent increase of HIF-1α, VEGF, and TGF-β and resulted in subsequent formation of type H vessels and osteogenic differentiation of mesenchymal stem cells. As ROS also was a target of HIF-1α, there may be a positive feedback loop between ROS and HIF-1α, which further amplified HIF-1α induction via the LLLT-mediated ROS increase. This study provided new insight into the effects of LLLT on vascularization and bone regeneration in bone tissue engineering.
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Affiliation(s)
- Jie Bai
- School of Stomatology, Dalian Medical University, Dalian, 116044, China
| | - Lijun Li
- School of Stomatology, Dalian Medical University, Dalian, 116044, China
| | - Ni Kou
- School of Stomatology, Dalian Medical University, Dalian, 116044, China.,The Affiliated Stomatological Hospital of Dalian Medical University School of Stomatology, Dalian, 116027, China
| | - Yuwen Bai
- School of Stomatology, Dalian Medical University, Dalian, 116044, China
| | - Yaoyang Zhang
- School of Stomatology, Dalian Medical University, Dalian, 116044, China
| | - Yun Lu
- School of Stomatology, Dalian Medical University, Dalian, 116044, China.,The Affiliated Stomatological Hospital of Dalian Medical University School of Stomatology, Dalian, 116027, China
| | - Lu Gao
- School of Stomatology, Dalian Medical University, Dalian, 116044, China. .,The Affiliated Stomatological Hospital of Dalian Medical University School of Stomatology, Dalian, 116027, China. .,Academician Laboratory of Immune and Oral Development & Regeneration, Dalian Medical University, Dalian, 116044, China.
| | - Fu Wang
- School of Stomatology, Dalian Medical University, Dalian, 116044, China. .,The Affiliated Stomatological Hospital of Dalian Medical University School of Stomatology, Dalian, 116027, China. .,Academician Laboratory of Immune and Oral Development & Regeneration, Dalian Medical University, Dalian, 116044, China.
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6
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Kou N, Zhou W, He Y, Ying X, Chai S, Fei T, Fu W, Huang J, Liu H. A Mendelian Randomization Analysis to Expose the Causal Effect of IL-18 on Osteoporosis Based on Genome-Wide Association Study Data. Front Bioeng Biotechnol 2020; 8:201. [PMID: 32266232 PMCID: PMC7099043 DOI: 10.3389/fbioe.2020.00201] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 02/28/2020] [Indexed: 01/16/2023] Open
Abstract
Accumulating evidence showed that Interleukin (IL) level is associated with Osteoporosis. Whereas, most of these associations are based on observational studies. Thus, their causality was still unclear. Mendelian randomization (MR) is a widely used statistical framework that uses genetic instrumental variables (IVs) to explore the causality of intermediate phenotype with disease. To classify their causality, we conducted a MR analysis to investigate the effect of IL-18 level on the risk of Osteoporosis. First, based on summarized genome-wide association study (GWAS) data, 8 independent IL-18 SNPs reaching genome-wide significance were deemed as IVs. Next, Simple median method was used to calculate the pooled odds ratio (OR) of these 8 SNPs for the assessment of IL-8 on the risk of Osteoporosis. Then, MR-Egger regression was utilized to detect potential bias due to the horizontal pleiotropy of these IVs. As a result of simple median method, we get the SE (−0.001; 95% CI−0.002 to 0; P = 0.042), which means low IL-18 level could increases the risk of the development of Osteoporosis. The low intercept (0; 95% CI −0.001 to 0; P = 0.59) shows there is no bias due to the horizontal pleiotropy of the IVs.
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Affiliation(s)
- Ni Kou
- Department of Oral Prosthodontics, School of Stomatology, Dalian Medical University, Dalian, China
| | - Wenyang Zhou
- School of Life Science and Technology, Harbin Institute of Technology, Harbin, China
| | - Yuzhu He
- Department of Oral Prosthodontics, School of Stomatology, Dalian Medical University, Dalian, China
| | - Xiaoxia Ying
- Department of Oral Prosthodontics, School of Stomatology, Dalian Medical University, Dalian, China
| | - Songling Chai
- Department of Oral Prosthodontics, School of Stomatology, Dalian Medical University, Dalian, China
| | - Tao Fei
- Department of Oral Prosthodontics, School of Stomatology, Dalian Medical University, Dalian, China
| | - Wenqi Fu
- Department of Oral Prosthodontics, School of Stomatology, Dalian Medical University, Dalian, China
| | - Jiaqian Huang
- Department of Oral Prosthodontics, School of Stomatology, Dalian Medical University, Dalian, China
| | - Huiying Liu
- Department of Oral Prosthodontics, School of Stomatology, Dalian Medical University, Dalian, China
- *Correspondence: Huiying Liu
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He J, Ye W, Kou N, Chen K, Cui B, Zhang X, Hu S, Liu T, Kang L, Li X. MicroRNA-29b-3p suppresses oral squamous cell carcinoma cell migration and invasion via IL32/AKT signalling pathway. J Cell Mol Med 2019; 24:841-849. [PMID: 31680452 PMCID: PMC6933408 DOI: 10.1111/jcmm.14794] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 09/04/2019] [Accepted: 10/09/2019] [Indexed: 12/17/2022] Open
Abstract
Oral squamous cell carcinoma (OSCC) is aggressive accompanied with poor prognosis. We previously isolated the most invasive cells resembling the invasive tumour front by microfluidic technology and explored their differentially expressed microRNAs (miRNAs) in our previous work. Here, we verified the miR‐29b‐3p as a guarder that suppressed migration and invasion of OSCC cells and was down‐regulated in the most invasive cells. Besides that, the invasion suppression role of miR‐29b‐3p was achieved through the IL32/AKT pathway. Thus, miR‐29b‐3p and IL32 might serve as therapeutic targets for blocking the progression and improving the outcome of OSCC.
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Affiliation(s)
- Jianya He
- Department of Prosthodontics, College of Stomatology, Dalian Medical University, Dalian, China
| | - Wen Ye
- Institute for Regenerative Medicine, Shanghai East Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai, China.,Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
| | - Ni Kou
- Department of Oral and Maxillofacial Surgery, College of Stomatology, Dalian Medical University, Dalian, China
| | - Kang Chen
- Institute for Regenerative Medicine, Shanghai East Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Bai Cui
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
| | - Xiaohong Zhang
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
| | - Shuhai Hu
- Department of Prosthodontics, College of Stomatology, Dalian Medical University, Dalian, China
| | - Tingjiao Liu
- Department of Oral Pathology, College of Stomatology, Dalian Medical University, Dalian, China
| | - Lan Kang
- Institute for Regenerative Medicine, Shanghai East Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Xiaojie Li
- Department of Prosthodontics, College of Stomatology, Dalian Medical University, Dalian, China
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8
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Kou N, Liu S, Li X, Li W, Zhong W, Gui L, Chai S, Ren X, Na R, Zeng T, Liu H. H19 Facilitates Tongue Squamous Cell Carcinoma Migration and Invasion via Sponging miR-let-7. Oncol Res 2018. [PMID: 29523225 PMCID: PMC7848458 DOI: 10.3727/096504018x15202945197589] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
The long noncoding RNA (lncRNA) H19 has been described to participate in the metastasis of various tumors. Nevertheless, whether H19 promotes or impedes tongue squamous cell carcinoma (TSCC) cell migration and invasion remains controversial. Here we found that the expression of H19 was elevated in TSCC tissues compared with adjacent normal tissues. Moreover, we demonstrated that the expression of H19 was higher in metastasized tumors compared with unmetastasized tumors. Consistently, TSCC cells express higher levels of H19 than human squamous cells. Subsequently, depletion of H19 impaired the migration and invasion abilities of TSCC cells. Mechanistically, we demonstrated that H19 functions as a competing endogenous RNA (ceRNA) to sponge miRNA let-7a, leading to an increase in a let-7a target, the key regulator of tumor metastasis HMGA2, which is enriched in TSCC tissues and cell lines. Intriguingly, inhibition of let-7a significantly rescued the short hairpin H19 (shH19)-induced decrease in TSCC migration and invasion. These findings revealed that the H19/let-7a/HMGA2/EMT axis plays a critical role in the regulation of TSCC migration and invasion, which may provide a new therapeutic target for TSCC.
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Affiliation(s)
- Ni Kou
- College of Stomatology, Dalian Medical University, Dalian, Liaoning, P.R. China
| | - Sha Liu
- College of Stomatology, Dalian Medical University, Dalian, Liaoning, P.R. China
| | - Xiaojie Li
- College of Stomatology, Dalian Medical University, Dalian, Liaoning, P.R. China
| | - Wuwei Li
- College of Stomatology, Dalian Medical University, Dalian, Liaoning, P.R. China
| | - Weijian Zhong
- College of Stomatology, Dalian Medical University, Dalian, Liaoning, P.R. China
| | - Lin Gui
- College of Stomatology, Dalian Medical University, Dalian, Liaoning, P.R. China
| | - Songling Chai
- College of Stomatology, Dalian Medical University, Dalian, Liaoning, P.R. China
| | - Xiang Ren
- College of Stomatology, Dalian Medical University, Dalian, Liaoning, P.R. China
| | - Risu Na
- College of Stomatology, Dalian Medical University, Dalian, Liaoning, P.R. China
| | - Tao Zeng
- Department of Stomatology, Dalian Stomatological Hospital, Dalian, Liaoning, P.R. China
| | - Huiying Liu
- College of Stomatology, Dalian Medical University, Dalian, Liaoning, P.R. China
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Kou N, Cho H, Kim HE, Sun Q, Ahn K, Ji H, Choi H, Kim O. Anti-cancer effect of Atractylodes macrocephala extract by double induction of apoptotic and autophagic cell death in head and neck cancer cells. BANGL J PHARMACOL 2017. [DOI: 10.3329/bjp.v12i2.31238] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
<p class="MS">The apoptosis resistance restricts the efficacy of traditional therapies of head and neck squamous cell carcinoma (HNSCC). To overcome this problem, <em>Atractylodes macrocephala</em>, a traditional Korean and Chinese herbal medicine, has been used in clinical practice. In the present study, the anticancer effect of <em>A. macrocephala</em> extract was investigated and its underlying mechanisms using head and neck cancer KB cell line. The extract-induced cytotoxicity was mediated by autophagic cell death as well as apoptosis in HNSCC cells though extrinsic apoptotic pathway and the Akt/mTOR autophagic pathway. This study suggests that <em>A. macrocephala</em> extracts can be a potential drug to overcome side effects and susceptibility for head and neck carcinoma by double induction of apoptosis and autophagy.</p><p class="MS"><strong>Video Clip of Methodology</strong>: 6 min 27 sec <a href="https://www.youtube.com/v/iRpGT4zpfs4">Full Screen</a> <a href="https://www.youtube.com/watch?v=iRpGT4zpfs4">If Failed</a></p>
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Qu H, Guo M, Kou N, Wu HT, Zhang Y, Gao ZY, Shi DZ. Simvastatin monotherapy as a potential option for statin-associated muscle symptoms: a case report. J Clin Pharm Ther 2016; 41:568-71. [PMID: 27425755 DOI: 10.1111/jcpt.12419] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 02/20/2016] [Accepted: 06/14/2016] [Indexed: 12/23/2022]
Abstract
WHAT IS KNOWN AND OBJECTIVES Choosing an alternative statin is recommended when managing statin-associated muscle symptoms (SAMS) and new hydrophilic statins are often suggested. We report on a case of statin-associated muscle damage that was successfully managed by simplifying the patient's combination therapy with simvastatin-ezetimibe to simvastatin alone. CASE SUMMARY The patient experienced SAMS when he was successively treated with atorvastatin, rosuvastatin, Xuezhikang capsule and combined simvastatin/ezetimibe therapy. However, the patient tolerated simvastatin therapy well even at a dose of 40 mg/day. WHAT IS NEW AND CONCLUSION Our case suggests that patients with SAMS who are intolerant to a wide variety of statins may be successfully managed with simvastatin monotherapy.
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Affiliation(s)
- H Qu
- China Heart Institute of Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing, China.,Graduate School of Beijing University of Traditional Chinese Medicine, Beijing, China
| | - M Guo
- China Heart Institute of Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing, China.,Graduate School of China Academy of Chinese Medical Sciences, Beijing, China
| | - N Kou
- China Heart Institute of Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing, China.,Graduate School of Beijing University of Traditional Chinese Medicine, Beijing, China.,Xiyuan Hospital, China Academy of Traditional Chinese Medicine, Beijing, China
| | - H-T Wu
- China Heart Institute of Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing, China.,Graduate School of Beijing University of Traditional Chinese Medicine, Beijing, China.,Xiyuan Hospital, China Academy of Traditional Chinese Medicine, Beijing, China
| | - Y Zhang
- China Heart Institute of Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing, China.,Graduate School of Beijing University of Traditional Chinese Medicine, Beijing, China.,Xiyuan Hospital, China Academy of Traditional Chinese Medicine, Beijing, China
| | - Z-Y Gao
- China Heart Institute of Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing, China
| | - D-Z Shi
- China Heart Institute of Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing, China.,Xiyuan Hospital, China Academy of Traditional Chinese Medicine, Beijing, China
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