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He Q, Wang Y, Fang C, Feng Z, Yin M, Huang J, Ma Y, Mo Z. Advancing stroke therapy: A deep dive into early phase of ischemic stroke and recanalization. CNS Neurosci Ther 2024; 30:e14634. [PMID: 38379112 PMCID: PMC10879038 DOI: 10.1111/cns.14634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 01/16/2024] [Accepted: 01/23/2024] [Indexed: 02/22/2024] Open
Abstract
Ischemic stroke, accounting for the majority of stroke events, significantly contributes to global morbidity and mortality. Vascular recanalization therapies, namely intravenous thrombolysis and mechanical thrombectomy, have emerged as critical interventions, yet their success hinges on timely application and patient-specific factors. This review focuses on the early phase pathophysiological mechanisms of ischemic stroke and the nuances of recanalization. It highlights the dual role of neutrophils in tissue damage and repair, and the critical involvement of the blood-brain barrier (BBB) in stroke outcomes. Special emphasis is placed on ischemia-reperfusion injury, characterized by oxidative stress, inflammation, and endothelial dysfunction, which paradoxically exacerbates cerebral damage post-revascularization. The review also explores the potential of targeting molecular pathways involved in BBB integrity and inflammation to enhance the efficacy of recanalization therapies. By synthesizing current research, this paper aims to provide insights into optimizing treatment protocols and developing adjuvant neuroprotective strategies, thereby advancing stroke therapy and improving patient outcomes.
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Affiliation(s)
- Qianyan He
- Department of Neurology, Stroke CenterThe First Hospital of Jilin UniversityJilinChina
- Institute of Biomedicine and BiotechnologyShenzhen Institute of Advanced Technology, Chinese Academy of SciencesShenzhenGuangdongChina
| | - Yueqing Wang
- Institute of Biomedicine and BiotechnologyShenzhen Institute of Advanced Technology, Chinese Academy of SciencesShenzhenGuangdongChina
| | - Cheng Fang
- Institute of Biomedicine and BiotechnologyShenzhen Institute of Advanced Technology, Chinese Academy of SciencesShenzhenGuangdongChina
| | - Ziying Feng
- Institute of Biomedicine and BiotechnologyShenzhen Institute of Advanced Technology, Chinese Academy of SciencesShenzhenGuangdongChina
| | - Meifang Yin
- Institute of Biomedicine and BiotechnologyShenzhen Institute of Advanced Technology, Chinese Academy of SciencesShenzhenGuangdongChina
| | - Juyang Huang
- School of Pharmaceutical Sciences (Shenzhen)Sun Yat‐sen UniversityShenzhenGuangdongChina
| | - Yinzhong Ma
- Institute of Biomedicine and BiotechnologyShenzhen Institute of Advanced Technology, Chinese Academy of SciencesShenzhenGuangdongChina
| | - Zhizhun Mo
- Emergency Department, Shenzhen Traditional Chinese Medicine HospitalThe Fourth Clinical Medical College of Guangzhou University of Chinese MedicineShenzhenGuangdongChina
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Attia AS, Hussein S, Sameh H, Khalil A, Waley AB, Matar I, Sameh R. Diagnostic and prognostic utility of TROP-2, SLP-2, and CXCL12 expression in papillary thyroid carcinoma. Cancer Biomark 2024; 39:211-221. [PMID: 38073379 PMCID: PMC11091596 DOI: 10.3233/cbm-230230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 10/30/2023] [Indexed: 01/01/2024]
Abstract
BACKGROUND Papillary thyroid carcinoma (PTC) is the most frequent thyroid malignancy. Histopathological examination is widely accepted as the gold standard test for the diagnosis of PTC. However, the histopathological examination sometimes can't differentiate PTC from other thyroid diseases. Differentiating PTC from other thyroid diseases is essential for a therapeutic approach and prognosis. OBJECTIVES The current study was performed to investigate the utility of TROP-2, SPL-2, and CXCL12 mRNA and protein expression in discriminating PTC from other thyroid diseases that mimic PTC. METHODS The current study was performed on 75 cases of surgically resected thyroid glands. The cases were distributed in two groups: the PTC group and the non-PTC group. The PTC group consisted of 35 cases (25 patients of the classic PTC variant and 10 patients of the PTC follicular variant). The non-PTC group consisted of 40 cases (10 cases were multinodular goiter, 5 cases were Graves' disease, 5 cases were Hashimoto thyroiditis, 15 patients were follicular adenoma (FA) and 5 cases were follicular carcinoma). TROP-2, SPL-2, and CXCL12 mRNA expression were estimated by qRT-PCR, and protein expression was estimated by immunohistochemistry. RESULTS There were upregulated TROP-2, SPL-2, and CXCL12 mRNA and protein expressions in PTC compared to non-PTC (P< 0.001, for each). There was a statistically significant upregulation in the mRNA expression of the three genes among PTC cases with larger tumor sizes (P< 0.001, for each), those with tumor stages III and IV (P= 0.008, 0.002 and < 0.001 respectively), and those with LN metastasis (P< 0.001, for each). Moreover, there was a statistically significant upregulation in CXCL-12 gene expression among PTC cases with extra-thyroid extension (P< 0.001). CONCLUSION mRNA expression of TROP-2, SPL-2, and CXCL12 among PTC cases increased in larger tumor size, tumor stages III and IV, and LN metastasis. Moreover, there was an increase in CXCL-12 gene expression among PTC cases with extra-thyroid extension. Thus, TROP-2, SPL-2, and CXCL12 expressions could be possible diagnostic and prognostic markers in PTC.
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Affiliation(s)
- Amany Selim Attia
- Department of Pathology, Faculty of Human Medicine, Zagazig University, Zagazig, Egypt
| | - Samia Hussein
- Medical Biochemistry and Molecular Biology Department, Faculty of Human Medicine, Zagazig University, Zagazig, Egypt
| | - Hend Sameh
- Medical Biochemistry and Molecular Biology Department, Faculty of Human Medicine, Zagazig University, Zagazig, Egypt
| | - Amr Khalil
- Al Ahrar Oncology Center, Zagazig, Egypt
| | - Ahmad Barakat Waley
- Medical Oncology Department, Faculty of Human Medicine, Zagazig University, Zagazig, Egypt
| | - Ihab Matar
- Surgical Oncology Department, Ismailia Teaching Oncology Hospital, Egypt
| | - Reham Sameh
- Department of Pathology, Faculty of Human Medicine, Zagazig University, Zagazig, Egypt
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Jang BY, Shin MK, Han DH, Sung JS. Curcumin Disrupts a Positive Feedback Loop between ADMSCs and Cancer Cells in the Breast Tumor Microenvironment via the CXCL12/CXCR4 Axis. Pharmaceutics 2023; 15:2627. [PMID: 38004606 PMCID: PMC10675183 DOI: 10.3390/pharmaceutics15112627] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 11/10/2023] [Accepted: 11/13/2023] [Indexed: 11/26/2023] Open
Abstract
Adipose tissue has a significant impact on breast cancer initiation and progression owing to its substantial proportion in the breast. Adipose-derived mesenchymal stem cells (ADMSCs) are major players in the breast tumor microenvironment (TME) as they interact with cancer cells. The intricate interaction between ADMSCs and cancer cells not only drives the differentiation of ADMSCs into cancer-associated fibroblasts (CAFs) but also the metastasis of cancer cells, which is attributed to the CXCL12/CXCR4 axis. We investigated the effects of curcumin, a flavonoid known for CXCL12/CXCR4 axis inhibition, on breast TME by analyzing whether it can disrupt the ADMSC-cancer positive loop. Using MCF7 breast cancer cell-derived conditioned medium (MCF7-CM), we induced ADMSC transformation and verified that curcumin diminished the phenotypic change, inhibiting CAF marker expression. Additionally, curcumin suppressed the CXCL12/CXCR4 axis and its downstream signaling both in ADMSCs and MCF7 cells. The CM from ADMSCs, whose ADMSC-to-CAF transformation was repressed by the curcumin treatment, inhibited the positive feedback loop between ADMSCs and MCF7 as well as epithelial-mesenchymal transition in MCF7. Our study showed that curcumin is a potent anti-cancer agent that can remodel the breast TME, thereby restricting the ADMSC-cancer positive feedback loop associated with the CXCL12/CXCR4 axis.
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Affiliation(s)
| | | | | | - Jung-Suk Sung
- Department of Life Science, Dongguk University-Seoul, Goyang 10326, Republic of Korea; (B.-Y.J.); (M.K.S.); (D.-H.H.)
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Macvanin MT, Gluvic ZM, Zaric BL, Essack M, Gao X, Isenovic ER. New biomarkers: prospect for diagnosis and monitoring of thyroid disease. Front Endocrinol (Lausanne) 2023; 14:1218320. [PMID: 37547301 PMCID: PMC10401601 DOI: 10.3389/fendo.2023.1218320] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Accepted: 07/03/2023] [Indexed: 08/08/2023] Open
Abstract
After the metabolic syndrome and its components, thyroid disorders represent the most common endocrine disorders, with increasing prevalence in the last two decades. Thyroid dysfunctions are distinguished by hyperthyroidism, hypothyroidism, or inflammation (thyroiditis) of the thyroid gland, in addition to the presence of thyroid nodules that can be benign or malignant. Thyroid cancer is typically detected via an ultrasound (US)-guided fine-needle aspiration biopsy (FNAB) and cytological examination of the specimen. This approach has significant limitations due to the small sample size and inability to characterize follicular lesions adequately. Due to the rapid advancement of high-throughput molecular biology techniques, it is now possible to identify new biomarkers for thyroid neoplasms that can supplement traditional imaging modalities in postoperative surveillance and aid in the preoperative cytology examination of indeterminate or follicular lesions. Here, we review current knowledge regarding biomarkers that have been reliable in detecting thyroid neoplasms, making them valuable tools for assessing the efficacy of surgical procedures or adjunctive treatment after surgery. We are particularly interested in providing an up-to-date and systematic review of emerging biomarkers, such as mRNA and non-coding RNAs, that can potentially detect thyroid neoplasms in clinical settings. We discuss evidence for miRNA, lncRNA and circRNA dysregulation in several thyroid neoplasms and assess their potential for use as diagnostic and prognostic biomarkers.
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Affiliation(s)
- Mirjana T. Macvanin
- Department of Radiobiology and Molecular Genetics, VINČA Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Zoran M. Gluvic
- Clinic for Internal Medicine, Department of Endocrinology and Diabetes, Zemun Clinical Hospital, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Bozidarka L. Zaric
- Department of Radiobiology and Molecular Genetics, VINČA Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Magbubah Essack
- Computer Science Program, Computer, Electrical and Mathematical Sciences and Engineering Division (CEMSE), King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- Computational Bioscience Research Center (CBRC), King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
| | - Xin Gao
- Computer Science Program, Computer, Electrical and Mathematical Sciences and Engineering Division (CEMSE), King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- Computational Bioscience Research Center (CBRC), King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
| | - Esma R. Isenovic
- Department of Radiobiology and Molecular Genetics, VINČA Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
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Lok HC, Katzeff JS, Hodges JR, Piguet O, Fu Y, Halliday GM, Kim WS. Elevated GRO-α and IL-18 in serum and brain implicate the NLRP3 inflammasome in frontotemporal dementia. Sci Rep 2023; 13:8942. [PMID: 37268663 DOI: 10.1038/s41598-023-35945-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 05/26/2023] [Indexed: 06/04/2023] Open
Abstract
Neuroinflammation is a hallmark of frontotemporal dementia (FTD), a heterogeneous group of proteinopathies characterized by the progressive degeneration of the frontal and temporal lobes. It is marked by microglial activation and subsequent cytokine release. Although cytokine levels in FTD brain and CSF have been examined, the number of cytokines measured in each study is limited and knowledge on cytokine concentrations in FTD serum is scarce. Here, we assessed 48 cytokines in FTD serum and brain. The aim was to determine common cytokine dysregulation pathways in serum and brain in FTD. Blood samples and brain tissue samples from the superior frontal cortex (SFC) were collected from individuals diagnosed with behavioral variant FTD (bvFTD) and healthy controls, and 48 cytokines were measured using a multiplex immunological assay. The data were evaluated by principal component factor analysis to determine the contribution from different components of the variance in the cohort. Levels of a number of cytokines were altered in serum and SFC in bvFTD compared to controls, with increases in GRO-α and IL-18 in both serum and SFC. These changes could be associated with NLRP3 inflammasome activation or the NFκB pathway, which activates NLRP3. The results suggest the possible importance of the NLRP3 inflammasome in FTD. An improved understanding of the role of inflammasomes in FTD could provide valuable insights into the pathogenesis, diagnosis and treatment of FTD.
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Affiliation(s)
- Hiu Chuen Lok
- Brain and Mind Centre, The University of Sydney, Camperdown, Sydney, NSW, 2050, Australia
- School of Medical Sciences, The University of Sydney, Sydney, NSW, Australia
| | - Jared S Katzeff
- Brain and Mind Centre, The University of Sydney, Camperdown, Sydney, NSW, 2050, Australia
- School of Medical Sciences, The University of Sydney, Sydney, NSW, Australia
| | - John R Hodges
- Brain and Mind Centre, The University of Sydney, Camperdown, Sydney, NSW, 2050, Australia
| | - Olivier Piguet
- Brain and Mind Centre, The University of Sydney, Camperdown, Sydney, NSW, 2050, Australia
- School of Psychology, The University of Sydney, Sydney, NSW, Australia
| | - YuHong Fu
- Brain and Mind Centre, The University of Sydney, Camperdown, Sydney, NSW, 2050, Australia
- School of Medical Sciences, The University of Sydney, Sydney, NSW, Australia
| | - Glenda M Halliday
- Brain and Mind Centre, The University of Sydney, Camperdown, Sydney, NSW, 2050, Australia
- School of Medical Sciences, The University of Sydney, Sydney, NSW, Australia
| | - Woojin Scott Kim
- Brain and Mind Centre, The University of Sydney, Camperdown, Sydney, NSW, 2050, Australia.
- School of Medical Sciences, The University of Sydney, Sydney, NSW, Australia.
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Liao H, Huang J, Liu J, Zhu H, Chen Y, Li X, Wen J, Yang Q. Sirt1 regulates microglial activation and inflammation following oxygen-glucose deprivation/reoxygenation injury by targeting the Shh/Gli-1 signaling pathway. Mol Biol Rep 2023; 50:3317-3327. [PMID: 36725745 PMCID: PMC10042964 DOI: 10.1007/s11033-022-08167-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 12/01/2022] [Indexed: 02/03/2023]
Abstract
BACKGROUND Cerebral ischemic injury leads to over-activation of microglia, which release pro-inflammatory factors that deteriorate neurological function during the acute phase of stroke. Thus, inhibiting microglial over-activation is crucial for reducing ischemic injury. Sirtuin 1 (Sirt1) has been shown to play a critical role in stroke, neurodegenerative diseases and aging. However, the effect of Sirt1 on the regulation of microglial activation following cerebral ischemic injury, as well as the underlying mechanism, remain unknown. Therefore, the purpose of the present study is to mainly investigate the effect of Sirt1 on oxygen-glucose deprivation/reoxygenation (OGD/R)-treated N9 microglia following treatment with the Sirt1 agonists resveratrol and SRT1720 and the Sirt1 antagonist sirtinol. METHODS Cell viability, Apoptosis, activation and inflammatory responses of microglia, expressions and activity of Shh signaling pathway proteins were detected by Cell Counting Kit 8, Flow Cytometry, immunocytochemistry, ELISA, and Western blotting, respectively. RESULTS The results demonstrated that treatment with resveratrol or SRT1720 could inhibit the activation of microglia and inflammation during OGD/R. Moreover, these treatments also led to the translocation of the GLI family zinc finger-1 (Gli-1) protein from the cytoplasm to the nucleus and upregulated the expression of Sonic hedgehog (Shh), Patched homolog-1 (Ptc-1), smoothened frizzled class receptor and Gli-1. By contrast, the inhibition of Sirt1 using sirtinol had the opposite effect. CONCLUSION These findings suggested that Sirt1 may regulate microglial activation and inflammation by targeting the Shh/Gli-1 signaling pathway following OGD/R injury. Schematic representation of Sirt1 regulating the microglial activation and inflammation following oxygen-glucose deprivation/reoxygenation injury via mediation of Shh/Gli-1 signaling pathway.
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Affiliation(s)
- Hongyan Liao
- Department of Neurology, the First Affiliated Hospital of Chongqing Medical University, 1 Youyi Road, Yuzhong District, Chongqing, 400016, China
| | - Jiagui Huang
- Department of Neurology, the First Affiliated Hospital of Chongqing Medical University, 1 Youyi Road, Yuzhong District, Chongqing, 400016, China
| | - Jie Liu
- Department of Neurology, the First Affiliated Hospital of Chongqing Medical University, 1 Youyi Road, Yuzhong District, Chongqing, 400016, China
| | - Huimin Zhu
- Department of Neurology, the First Affiliated Hospital of Chongqing Medical University, 1 Youyi Road, Yuzhong District, Chongqing, 400016, China
| | - Yue Chen
- Department of Neurology, the First Affiliated Hospital of Chongqing Medical University, 1 Youyi Road, Yuzhong District, Chongqing, 400016, China
| | - Xuemei Li
- Department of Neurology, the First Affiliated Hospital of Chongqing Medical University, 1 Youyi Road, Yuzhong District, Chongqing, 400016, China
| | - Jun Wen
- Department of Neurology, the First Affiliated Hospital of Chongqing Medical University, 1 Youyi Road, Yuzhong District, Chongqing, 400016, China
| | - Qin Yang
- Department of Neurology, the First Affiliated Hospital of Chongqing Medical University, 1 Youyi Road, Yuzhong District, Chongqing, 400016, China.
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Microglial Activation in Metal Neurotoxicity: Impact in Neurodegenerative Diseases. BIOMED RESEARCH INTERNATIONAL 2023; 2023:7389508. [PMID: 36760476 PMCID: PMC9904912 DOI: 10.1155/2023/7389508] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 01/18/2023] [Accepted: 01/23/2023] [Indexed: 02/04/2023]
Abstract
Neurodegenerative processes encompass a large variety of diseases with different pathological patterns and clinical features, such as Alzheimer's and Parkinson's diseases. Exposure to metals has been hypothesized to increase oxidative stress in brain cells leading to cell death and neurodegeneration. Neurotoxicity of metals has been demonstrated by several in vitro and in vivo experimental studies, and most probably, each metal has its specific pathway to trigger cell death. As a result, exposure to essential metals, such as manganese, iron, copper, zinc, and cobalt, and nonessential metals, including lead, aluminum, and cadmium, perturbs metal homeostasis at the cellular and organism levels leading to neurodegeneration. In this contribution, a comprehensive review of the molecular mechanisms by which metals affect microglia physiology and signaling properties is presented. Furthermore, studies that validate the disruption of microglia activation pathways as an essential mechanism of metal toxicity that can contribute to neurodegenerative disease are also presented and discussed.
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Maksoud S, Ortega JT, Hidalgo M, Rangel HR. Leishmania donovani and HIV co-infection in vitro: Identification and characterization of main molecular players. Acta Trop 2022; 228:106248. [PMID: 34822851 DOI: 10.1016/j.actatropica.2021.106248] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 11/05/2021] [Accepted: 11/08/2021] [Indexed: 12/16/2022]
Abstract
The incidence of Leishmania/HIV co-infection is growing and few studies detail the cellular processes and macromolecules participating in co-infection. Thus, the goal of this study was to partially describe the Leishmania/HIV co-infection events by measuring molecular and functional parameters associated with both pathogens in vitro. MT-4 cells (human T-lymphocytes), primary monocytes, and peripheral blood mononuclear cells were exposed to HIV and/or Leishmania donovani. The cytopathic effects generated by the pathogens were observed through microscopy. Viral replication was assessed by monitoring p24 protein levels and parasitic proliferation/infectivity was determined using Giemsa staining. Changes in molecular markers were evaluated by ELISA and fluorescence assays. Our results showed that our system reassembles the main parameters previously described for Leishmania/HIV co-infection in patients in terms of potentiation of parasitic and viral replication/infectivity, amplification of syncytia induction, and alterations of cell viability. In addition, an amplification in NF-κB activation, changes in CXCR4/CCR5 surface expression, and a Th1→Th2 variation in cytokine/chemokine secretion were demonstrated. Altogether, this study could contribute to gain a deep understanding of the molecular events associated with Leishmania/HIV co-infection.
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Affiliation(s)
- S Maksoud
- Laboratorio de Virología Molecular, Centro de Microbiología y Biología Celular, Instituto Venezolano de Investigaciones Científicas, Caracas, Venezuela
| | - J T Ortega
- Laboratorio de Virología Molecular, Centro de Microbiología y Biología Celular, Instituto Venezolano de Investigaciones Científicas, Caracas, Venezuela
| | - M Hidalgo
- Laboratorio de Inmunoparasitología, Centro de Microbiología y Biología Celular, Instituto Venezolano de Investigaciones Científicas, Caracas, Venezuela
| | - H R Rangel
- Laboratorio de Virología Molecular, Centro de Microbiología y Biología Celular, Instituto Venezolano de Investigaciones Científicas, Caracas, Venezuela.
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Chen CY, Wu CH, Wu KC, Shiao LR, Chuang CM, Leung YM, Chow LWC. A basal level of γ-linolenic acid depletes Ca 2+ stores and induces endoplasmic reticulum and oxidative stresses to cause death of breast cancer BT-474 cells. CHINESE J PHYSIOL 2021; 64:202-209. [PMID: 34472451 DOI: 10.4103/cjp.cjp_30_21] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Gamma-linolenic acid (GLA), a natural fatty acid obtained from oils of various vegetables and seeds, has been demonstrated as an anticancer agent. In this work, we investigated the anticancer effects of GLA on breast cancer BT-474 cells. GLA at 30 μM, a concentration reportedly within the range of circulating concentrations in clinical studies, caused apoptotic cell death. GLA caused an elevation in mitochondrial Ca2+ level and a decrease in mitochondrial membrane potential. GLA treatment depleted cyclopiazonic acid (CPA)-sensitive Ca2+ store and triggered substantial Ca2+ influx. Intracellular Ca2+ release triggered by GLA was suppressed by 3 μM xestospongin C (XeC, IP3 receptor-channel blocker) and 100 μM ryanodine (ryanodine receptor-channel blocker), suggesting that the Ca2+ release was via IP3 receptor-channel and ryanodine receptor-channel. Increased expressions of p-eIF2α and CHOP were observed in GLA-treated cells, suggesting GLA-treated cells had increased expressions of p-eIF2α and CHOP, which suggest endoplasmic reticulum (ER) stress. In addition, GLA elicited increased production of reactive oxygen species. Taken together, our results suggest a basal level of GLA induced apoptotic cell death by causing Ca2+ overload, mitochondrial dysfunction, Ca2+ store depletion, ER stress, and oxidative stress. This is the first report to show that GLA caused Ca2+ store depletion and ER stress. GLA-induced Ca2+ store depletion resulted from opening of IP3 receptor-channel and ryanodine receptor-channel.
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Affiliation(s)
- Cing-Yu Chen
- Department of Physiology, China Medical University, Taichung, Taiwan
| | - Cheng-Hsun Wu
- Department of Anatomy, China Medical University, Taichung, Taiwan
| | - King-Chuen Wu
- Department of Anesthesiology, Chang Gung Memorial Hospital; Chang Gung University of Science and Technology, Chiayi, Taiwan
| | - Lian-Ru Shiao
- Department of Physiology, China Medical University, Taichung, Taiwan
| | - Chin-Min Chuang
- Department of Emergency Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Yuk-Man Leung
- Department of Physiology, China Medical University, Taichung, Taiwan
| | - Louis W C Chow
- State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Taipa, Macau; UNIMED Medical Institute; Organisation for Oncology and Translational Research, Hong Kong, China
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Lee SA, Choi JH, Cho SJ, Chang JW, Maeng YH. The clinical usefulness of chemokine C-X-C Motif Ligand 12 as a diagnostic marker for Papillary Thyroid Carcinoma. INDIAN J PATHOL MICR 2021; 63:544-550. [PMID: 33154303 DOI: 10.4103/ijpm.ijpm_722_19] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Background Papillary thyroid carcinoma (PTC) is the most common type of thyroid cancer worldwide. It is essential to develop methods for the accurate diagnosis of PTC to avoid unnecessary surgery. The chemokine C-X-C motif ligand 12 (CXCL12) is associated with various cancers. We aimed to investigate the efficacy of CXCL12 in the diagnosis of PTC in fine-needle aspiration (FNA) specimens. Methods We prospectively collected samples from 58 patients who were scheduled for surgical treatment of PTC from 2013 to 2015. Tissue samples of 31 people with benign thyroid conditions were used as controls. Immunocytochemical and immunohistochemical staining for CXCL12 was performed on FNAs and corresponding tissue specimens. B-type Raf kinase (BRAF) V600E mutant protein expression and gene mutation were also analyzed to compare the clinical usefulness. Results : The mean age of the patients was 49.1 ± 1.4 years and 88.1% were women. Positive CXCL12 staining was observed in 6.5% of benign and in 98.3% of PTC samples; positive BRAF V600E mutant protein expression was found in 19.4% of benign and 93.1% of PTC samples. For the diagnosis of PTC for CXCL12 staining of FNA specimens, the calculated values were 93.1% sensitivity, 90.3% specificity, 94.7% positive predictive value, 87.5% negative predictive value, and 89.1% accuracy. CXCL12 had 100% sensitivity and specificity for the 12 cases of atypia of undetermined significance (AUS) diagnosed in FNA specimens. Conclusions CXCL12 may be a useful diagnostic tool for PTC, especially when the FNA specimen is classified as AUS.
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Affiliation(s)
- Sang Ah Lee
- Department of Internal Medicine, Jeju National University Hospital, Jeju National University School of Medicine, Jeju City, Republic of Korea
| | - Jae Hyuck Choi
- Department of Surgery, Jeju National University Hospital, Jeju National University School of Medicine, Jeju City, Republic of Korea
| | - Suk Ju Cho
- Department of Anethesiology, Jeju National University Hospital, Jeju National University School of Medicine, Jeju City, Republic of Korea
| | - Jee Won Chang
- Department of Thoracic and Cardiovascular Surgery, Jeju National University Hospital, Jeju National University School of Medicine, Jeju City, Republic of Korea
| | - Young Hee Maeng
- Department of Pathology Jeju National University Hospital, Jeju National University School of Medicine, Jeju City, Republic of Korea
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Li J, Chen H, Zhang D, Xie J, Zhou X. The role of stromal cell-derived factor 1 on cartilage development and disease. Osteoarthritis Cartilage 2021; 29:313-322. [PMID: 33253889 DOI: 10.1016/j.joca.2020.10.010] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 09/11/2020] [Accepted: 10/06/2020] [Indexed: 02/05/2023]
Abstract
Stromal cell-derived factor 1 (SDF-1), also known as CXC motif chemokine ligand 12 (CXCL12), is recognized as a homeostatic cytokine with strong chemotactic potency. It plays an important role in physiological and pathological processes, such as the development of multiple tissues and organs, the regulation of cell distribution, and tumour metastasis. SDF-1 has two receptors, CXC chemokine receptor type 4 (CXCR4) and CXC chemokine receptor type 7 (CXCR7). SDF-1 affects the proliferation, survival, differentiation and maturation of chondrocytes by binding to CXCR4 on chondrocytes. Therefore, SDF-1 has been used as an exogenous regulatory target in many studies to explore the mechanism of cartilage development. SDF-1 is also a potential therapeutic target for osteoarthritis (OA) and rheumatoid arthritis (RA), because of its role in pathological initiation and regulation. In addition, SDF-1 shows potent capacity in the repair of cartilage defects by recruiting endogenous stem cells in a cartilage tissue engineering context. To summarize the specific role of SDF-1 on cartilage development and disease, all articles had been screened out in PubMed by May 30, 2020. The search was limited to studies published in English. Search terms included SDF-1; CXCL12; CXCR4; chondrocyte; cartilage; OA; RA, and forty-seven papers were studied. Besides, we reviewed references in the articles we searched to get additional relevant backgrounds. The review aims to conclude the current knowledge regarding the physiological and pathological role of SDF-1 on the cartilage and chondrocyte. More investigations are required to determine methods targeted SDF-1 to cartilage development and interventions to cartilage diseases.
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Affiliation(s)
- J Li
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - H Chen
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - D Zhang
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - J Xie
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China.
| | - X Zhou
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China; Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China.
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12
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Yu SJ, Wu KJ, Wang YS, Song JS, Wu CH, Jan JJ, Bae E, Chen H, Shia KS, Wang Y. Protective Effect of CXCR4 Antagonist CX807 in a Rat Model of Hemorrhagic Stroke. Int J Mol Sci 2020; 21:ijms21197085. [PMID: 32992950 PMCID: PMC7582767 DOI: 10.3390/ijms21197085] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 09/22/2020] [Accepted: 09/22/2020] [Indexed: 12/14/2022] Open
Abstract
Intracerebral hemorrhage (ICH) is a major cause of stroke, with high mortality and morbidity. There is no effective pharmacological therapy for ICH. Previous studies have indicated that CXCR4 antagonists reduced microglia activation, attenuated infiltration of T cells, and improved functional recovery in ischemic stroke animals. The interaction of CXCR4 antagonists and ICH has not been characterized. The purpose of this study is to examine the neuroprotective action of a novel CXCR4 antagonist CX807 against ICH. In primary cortical neuronal and BV2 microglia co-culture, CX807 reduced glutamate-mediated neuronal loss and microglia activation. Adult rats were locally administered with collagenase VII to induce ICH. CX807 was given systemically after the ICH. Early post-treatment with CX807 improved locomotor activity in ICH rats. Brain tissues were collected for qRTPCR and histological staining. ICH upregulated the expression of CXCR4, CD8, TNFα, IL6, and TLR4. The immunoreactivity of IBA1 and CD8, as well as TUNEL labeling, were enhanced in the perilesioned area. CX807 significantly mitigated these responses. In conclusion, our data suggest that CX807 is neuroprotective and anti-inflammatory against ICH. CX807 may have clinical implications for the treatment of hemorrhagic stroke.
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Affiliation(s)
- Seong-Jin Yu
- Center for Neuropsychiatric Research, National Health Research Institutes, Zhunan 35053, Taiwan; (S.-J.Y.); (K.-J.W.); (Y.-S.W.); (E.B.); (H.C.)
| | - Kuo-Jen Wu
- Center for Neuropsychiatric Research, National Health Research Institutes, Zhunan 35053, Taiwan; (S.-J.Y.); (K.-J.W.); (Y.-S.W.); (E.B.); (H.C.)
| | - Yu-Syuan Wang
- Center for Neuropsychiatric Research, National Health Research Institutes, Zhunan 35053, Taiwan; (S.-J.Y.); (K.-J.W.); (Y.-S.W.); (E.B.); (H.C.)
| | - Jen-Shin Song
- Institute of Biotechnology and Pharmaceutical Research, National Health Research Institutes, Zhunan 35053, Taiwan; (J.-S.S.); (C.-H.W.); (J.-J.J.); (K.-S.S.)
| | - Chien-Huang Wu
- Institute of Biotechnology and Pharmaceutical Research, National Health Research Institutes, Zhunan 35053, Taiwan; (J.-S.S.); (C.-H.W.); (J.-J.J.); (K.-S.S.)
| | - Jiing-Jyh Jan
- Institute of Biotechnology and Pharmaceutical Research, National Health Research Institutes, Zhunan 35053, Taiwan; (J.-S.S.); (C.-H.W.); (J.-J.J.); (K.-S.S.)
| | - Eunkyung Bae
- Center for Neuropsychiatric Research, National Health Research Institutes, Zhunan 35053, Taiwan; (S.-J.Y.); (K.-J.W.); (Y.-S.W.); (E.B.); (H.C.)
| | - Hsi Chen
- Center for Neuropsychiatric Research, National Health Research Institutes, Zhunan 35053, Taiwan; (S.-J.Y.); (K.-J.W.); (Y.-S.W.); (E.B.); (H.C.)
| | - Kak-Shan Shia
- Institute of Biotechnology and Pharmaceutical Research, National Health Research Institutes, Zhunan 35053, Taiwan; (J.-S.S.); (C.-H.W.); (J.-J.J.); (K.-S.S.)
| | - Yun Wang
- Center for Neuropsychiatric Research, National Health Research Institutes, Zhunan 35053, Taiwan; (S.-J.Y.); (K.-J.W.); (Y.-S.W.); (E.B.); (H.C.)
- Correspondence:
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13
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Cao J, Zhang M, Zhang L, Lou J, Zhou F, Fang M. Non-coding RNA in thyroid cancer - Functions and mechanisms. Cancer Lett 2020; 496:117-126. [PMID: 32949678 DOI: 10.1016/j.canlet.2020.08.021] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 07/26/2020] [Accepted: 08/19/2020] [Indexed: 12/29/2022]
Abstract
Thyroid cancer is the most common endocrine malignant tumor, and its incidence has increased significantly in the past few years. A growing number of noncoding RNAs (ncRNAs) have shown abnormal expression patterns in human thyroid cancer in recent studies. Depending on size, ncRNAs are usually subdivided into two categories: short ncRNAs and long ncRNAs (longer than 200 nucleotides). Short ncRNAs include microRNAs (miRNAs), PIWI-interacting RNAs, small nucleolar RNAs, and endogenous small interfering RNAs, which have been extensively studied due to their roles in developmental and tumor biology. Compared to that of short ncRNAs, the involvement of lncRNAs in human cancers, especially in thyroid cancer, is not as well studied. Here, we reviewed the roles and clinical significance of miRNAs, lncRNAs, and circular RNA in thyroid development, tumorigenesis, and metastasis to offer a new approach to thyroid cancer treatment.
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Affiliation(s)
- Jun Cao
- Department of Rare and Head and Neck Oncology, Institute of Cancer Research and Basic Medical Sciences of Chinese Academy of Sciences, Cancer Hospital of University of Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, Zhejiang, 310022, China
| | - Mengdi Zhang
- MOE Laboratory of Biosystems Homeostasis & Protection and Innovation Center for Cell Signaling Network, Life Sciences Institute, Zhejiang University, Hangzhou, 310058, China
| | - Long Zhang
- MOE Laboratory of Biosystems Homeostasis & Protection and Innovation Center for Cell Signaling Network, Life Sciences Institute, Zhejiang University, Hangzhou, 310058, China
| | - Jianlin Lou
- Department of Head and Neck Surgery, Institute of Cancer Research and Basic Medical Sciences of Chinese Academy of Sciences, Cancer Hospital of University of Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, Zhejiang, 310022, China
| | - Fangfang Zhou
- Institutes of Biology and Medical Science, Soochow University, Suzhou, 215123, China.
| | - Meiyu Fang
- Department of Rare and Head and Neck Oncology, Institute of Cancer Research and Basic Medical Sciences of Chinese Academy of Sciences, Cancer Hospital of University of Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, Zhejiang, 310022, China.
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14
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Kumar A, Palit P, Thomas S, Gupta G, Ghosh P, Goswami RP, Kumar Maity T, Dutta Choudhury M. Osteoarthritis: Prognosis and emerging therapeutic approach for disease management. Drug Dev Res 2020; 82:49-58. [PMID: 32931079 DOI: 10.1002/ddr.21741] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 08/24/2020] [Accepted: 08/25/2020] [Indexed: 12/21/2022]
Abstract
Osteoarthritis (OA), a disorder of joints, is prevalent in older age. The contemporary cure for OA is aimed to confer symptomatic relief, consisting of temporary pain and swelling relief. In this paper, we discuss various modalities responsible for the onset of OA and associated with its severity. Inhibition of chondrocytes receptors such as DDR2, SDF-1, Asporin, and CXCR4 by specific pharmacological inhibitors attenuates OA, a critical step for finding potential disease modifying drugs. We critically analyzed recent OA studies with an emphasis on intermediate target molecules for OA intervention. We also explored some novel and safe treatments for OA by considering disease prognosis crosstalk with cellular signaling pathways.
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Affiliation(s)
- Amresh Kumar
- Department of Life Sciences and Bioinformatics, Assam University, Silchar, India
| | - Partha Palit
- Department of Pharmaceutical Sciences, Assam University, Silchar, India
| | - Sabu Thomas
- Department of Chemical Sciences, Mahatma Gandhi University, Kottayam, India
| | - Gaurav Gupta
- Department of Immunology, University of Manitoba, Winnipeg, Manitoba, Canada.,Area of Biotechnology and Bioinformatics, NIIT University, Neemrana, Rajasthan, India
| | - Parasar Ghosh
- Department of Rheumatology, Institute of Post Graduate Medical Education &Research, Kolkata, India
| | | | - Tapan Kumar Maity
- Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India
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15
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Lu WJ, Zhou L, Gao FX, Zhou YL, Li Z, Zhang XJ, Wang Y, Gui JF. Dynamic and Differential Expression of Duplicated Cxcr4/Cxcl12 Genes Facilitates Antiviral Response in Hexaploid Gibel Carp. Front Immunol 2020; 11:2176. [PMID: 33013914 PMCID: PMC7516010 DOI: 10.3389/fimmu.2020.02176] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 08/10/2020] [Indexed: 12/16/2022] Open
Abstract
Chemokine receptor cxcr4 and its ligand cxcl12 have evolved two paralogs in the teleost lineage. In this study, we have identified four duplicated cxcr4 and cxcl12 genes from hexaploid gibel carp, Carassius gibelio, respectively. Cgcxcr4bs and Cgcxcl12as were dynamically and differentially expressed in immune-related tissues, and significantly up-regulated in head kidney and spleen after crucian carp herpesvirus (CaHV) infection. Blocking Cxcr4/Cxcl12 axis by injecting AMD3100 brought more severe bleeding symptom and lower survival rate in CaHV-infected fish. AMD3100 treatment also suppressed the up-regulation of key antiviral genes in head kidney and spleen, and resulted in more acute replication of CaHV in vivo. Consistently, the similar suppression of up-regulated expression of key antiviral genes were also observed in CAB cells treated by AMD3100 after poly(I:C) stimulation. Finally, MAPK3 and JAK/STAT were identified as the possible pathways that CgCxcr4s and CgCxcl12s participate in to promote the antiviral response in vitro.
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Affiliation(s)
- Wei-Jia Lu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, The Innovation Academy of Seed Design, Chinese Academy of Sciences, Graduate University of the Chinese Academy of Sciences, Wuhan, China
| | - Li Zhou
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, The Innovation Academy of Seed Design, Chinese Academy of Sciences, Graduate University of the Chinese Academy of Sciences, Wuhan, China
| | - Fan-Xiang Gao
- Institute of Marine Biology, College of Oceanography, Hohai University, Nanjing, China
| | - Yu-Lin Zhou
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, The Innovation Academy of Seed Design, Chinese Academy of Sciences, Graduate University of the Chinese Academy of Sciences, Wuhan, China
| | - Zhi Li
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, The Innovation Academy of Seed Design, Chinese Academy of Sciences, Graduate University of the Chinese Academy of Sciences, Wuhan, China
| | - Xiao-Juan Zhang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, The Innovation Academy of Seed Design, Chinese Academy of Sciences, Graduate University of the Chinese Academy of Sciences, Wuhan, China
| | - Yang Wang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, The Innovation Academy of Seed Design, Chinese Academy of Sciences, Graduate University of the Chinese Academy of Sciences, Wuhan, China
| | - Jian-Fang Gui
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, The Innovation Academy of Seed Design, Chinese Academy of Sciences, Graduate University of the Chinese Academy of Sciences, Wuhan, China
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16
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Shen LJ, Zhou J, Yang CS, Lv QW, Xu QC. Serum CXC chemokine ligand-12 as a potential predictor for in-hospital major adverse events after severe traumatic brain injury. Clin Chim Acta 2020; 509:244-248. [PMID: 32569633 DOI: 10.1016/j.cca.2020.06.031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 06/17/2020] [Accepted: 06/18/2020] [Indexed: 11/30/2022]
Abstract
BACKGROUND CXC chemokine ligand-12 (CXCL12) is associated with brain inflammation. We attempted to discern whether serum CXCL12 is a promising predictor for in-hospital major adverse events (IMAEs) after traumatic brain injury (TBI), including death, acute lung injury, acute traumatic coagulopathy, progressive hemorrhagic injury and posttraumatic cerebral infarction. METHODS In this prospective, observational study, serum CXCL12 levels were quantified among 117 severe TBI patients. We investigated the relation of CXCL12 levels to IMAEs using a multivariate analysis. RESULTS Median value of serum CXCL12 concentrations was substantially higher in patients with IMAEs than in other remainders (21.1 vs. 11.6 ng/ml). With an increasing number of IMAEs, serum CXCL12 concentrations were significantly increased (r = 0.702). Serum CXCL12 independently predicted IMAEs (odds ratio, 1.253; 95% CI, 1.100-1.428). Serum CXCL12 concentrations discriminated risk of IMAEs with area under receiver operating characteristic curve of 0.759 (95% CI, 0.672-0.834), its concentrations >16.0 ng/ml distinguished IMAEs with 83.9% sensitivity and 67.2% specificity and its combination with Glasgow coma scale scores produced the best predictive ability compared with each one alone (p = 0.0116 or 0.0004). CONCLUSION Serum CXCL12 concentrations are independently associated with IMAEs following TBI, substantializing serum CXCL12 as a useful prognostic biomarker for head trauma patients.
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Affiliation(s)
- Liang-Jun Shen
- Department of Neurosurgery, Shengzhou People's Hospital (the First Affiliated Hospital of Zhejiang University Shengzhou branch), No. 666 Dangui Road, Shengzhou 312400, Zhejiang, China.
| | - Jing Zhou
- Department of Neurosurgery, Shengzhou People's Hospital (the First Affiliated Hospital of Zhejiang University Shengzhou branch), No. 666 Dangui Road, Shengzhou 312400, Zhejiang, China
| | - Chun-Song Yang
- Department of Neurosurgery, Shengzhou People's Hospital (the First Affiliated Hospital of Zhejiang University Shengzhou branch), No. 666 Dangui Road, Shengzhou 312400, Zhejiang, China
| | - Qing-Wei Lv
- Department of Neurosurgery, Shengzhou People's Hospital (the First Affiliated Hospital of Zhejiang University Shengzhou branch), No. 666 Dangui Road, Shengzhou 312400, Zhejiang, China
| | - Qi-Chen Xu
- Department of Neurosurgery, Shengzhou People's Hospital (the First Affiliated Hospital of Zhejiang University Shengzhou branch), No. 666 Dangui Road, Shengzhou 312400, Zhejiang, China
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17
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Gupta N, Jadhav S, Tan KL, Saw G, Mallilankaraman KB, Dheen ST. miR-142-3p Regulates BDNF Expression in Activated Rodent Microglia Through Its Target CAMK2A. Front Cell Neurosci 2020; 14:132. [PMID: 32508597 PMCID: PMC7253665 DOI: 10.3389/fncel.2020.00132] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 04/20/2020] [Indexed: 12/31/2022] Open
Abstract
Microglia, the innate immune effector cells of the mammalian central nervous system (CNS), are involved in the development, homeostasis, and pathology of CNS. Microglia become activated in response to various insults and injuries and protect the CNS by phagocytosing the invading pathogens, dead neurons, and other cellular debris. Recent studies have demonstrated that the epigenetic mechanisms ensure the coordinated regulation of genes involved in microglial activation. In this study, we performed a microRNA (miRNA) microarray in activated primary microglia derived from rat pup's brain and identified differentially expressed miRNAs targeting key genes involved in cell survival, apoptosis, and inflammatory responses. Interestingly, miR-142-3p, one of the highly up-regulated miRNAs in microglia upon lipopolysaccharide (LPS)-mediated activation, compared to untreated primary microglia cells was predicted to target Ca2+/calmodulin dependent kinase 2a (CAMK2A). Further, luciferase reporter assay confirmed that miR-142-3p targets the 3'UTR of Camk2a. CAMK2A has been implicated in regulating the expression of brain-derived neurotrophic factor (BDNF) and long-term potentiation (LTP), a cellular mechanism underlying memory and learning. Given this, this study further focused on understanding the miR-142-3p mediated regulation of the CAMK2A-BDNF pathway via Cyclic AMP-responsive element-binding protein (CREB) in activated microglia. The results revealed that CAMK2A was downregulated in activated microglia, suggesting an inverse relationship between miR-142-3p and Camk2a in activated microglia. Overexpression of miR-142-3p in microglia was found to decrease the expression of CAMK2A and subsequently BDNF through regulation of CREB phosphorylation. Functional analysis through shRNA-mediated stable knockdown of CAMK2A in microglia confirmed that the regulation of BDNF by miR-142-3p is via CAMK2A. Overall, this study provides a database of differentially expressed miRNAs in activated primary microglia and reveals that microglial miR-142-3p regulates the CAMK2A-CREB-BDNF pathway which is involved in synaptic plasticity.
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Affiliation(s)
- Neelima Gupta
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Shweta Jadhav
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Kai-Leng Tan
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Genevieve Saw
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Karthik Babu Mallilankaraman
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - S Thameem Dheen
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
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18
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Wang HF, Dong ZY, Yan L, Yang S, Xu HN, Chen SL, Wang WR, Yang QL, Chen CJ. The N-terminal polypeptide derived from vMIP-II exerts its antitumor activity in human breast cancer through CXCR4/miR-7-5p/Skp2 pathway. J Cell Physiol 2020; 235:9474-9486. [PMID: 32372405 DOI: 10.1002/jcp.29755] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 03/31/2020] [Accepted: 04/22/2020] [Indexed: 12/13/2022]
Abstract
Breast cancer is a malignant tumor with the highest incidence in women of the world. CXCR4 and Skp2 are highly expressed in breast cancer cells and CXCR4 was positively correlated with Skp2 by interference or overexpression. The microRNA array was used to detect the differentially expressed spectrum of micro RNAs in breast cancer cells the changes of miR-7-5p after CXCR4 inhibitor (NT21MP) treatment to block the CXCR4/SDF-1 pathway was founded. MiR-7-5p has been found to be correlated with Skp2 in various tumors in the literature, and Skp2 expression can be regulated by transfection with miR-7-5p mimics or inhibitors. The expression level of miR-7-5p was upregulated or downregulated after CXCR4 interference or overexpression. Combined with the correlation between CXCR4 and miR-7-5p in the chip results, CXCR4 may regulate Skp2 through miR-7-5p. Epithelial cells have the morphological characteristics of mesenchymal cells for some reason called epithelial-mesenchymal transformation (EMT). Transfection of miR-7-5p mimics into drug-resistant cells reduced Skp2 levels, decreased the expression of Vimentin, Snail, and slug, and increased the expression of E-cadherin. CXCR4 inhibitor (NT21MP) can reverse the EMT changes caused by miR-7-5p inhibitor. Similarly, in vivo results suggesting that CXCR4 inhibitors can reverse the EMT phenotype of drug-resistant breast cancer cells through the CXCR4/miR-7-5p/Skp2 pathway. In summary, the CXCR4/miR-7-5p/Skp2 signaling pathway plays an important role in the progression of breast cancer. This study provides a theoretical basis for the treatment of breast cancer by targeting the CXCR4 pathway.
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Affiliation(s)
- Hai-Feng Wang
- Anhui Province Key Laboratory of Translational Cancer Research, Bengbu Medical College, Bengbu, Anhui, China.,Department of Clinical Laboratory, Huaibei City People's Hospital, Huaibei, Anhui, China
| | - Zheng-Yuan Dong
- Anhui Province Key Laboratory of Translational Cancer Research, Bengbu Medical College, Bengbu, Anhui, China
| | - Lei Yan
- Anhui Province Key Laboratory of Translational Cancer Research, Bengbu Medical College, Bengbu, Anhui, China
| | - Shuo Yang
- Anhui Province Key Laboratory of Translational Cancer Research, Bengbu Medical College, Bengbu, Anhui, China
| | - He-Nan Xu
- Anhui Province Key Laboratory of Translational Cancer Research, Bengbu Medical College, Bengbu, Anhui, China
| | - Su-Lian Chen
- Anhui Province Key Laboratory of Translational Cancer Research, Bengbu Medical College, Bengbu, Anhui, China
| | - Wen-Rui Wang
- Anhui Province Key Laboratory of Translational Cancer Research, Bengbu Medical College, Bengbu, Anhui, China.,Department of Biotechnology, Bengbu Medical College, Bengbu, Anhui, China
| | - Qing-Ling Yang
- Anhui Province Key Laboratory of Translational Cancer Research, Bengbu Medical College, Bengbu, Anhui, China.,Department of Biochemistry and Molecular Biology, Bengbu Medical College, Bengbu, Anhui, China
| | - Chang-Jie Chen
- Anhui Province Key Laboratory of Translational Cancer Research, Bengbu Medical College, Bengbu, Anhui, China.,Department of Biochemistry and Molecular Biology, Bengbu Medical College, Bengbu, Anhui, China
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19
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Chow LWC, Wong KL, Shiao LR, Wu KC, Leung YM. Polyamine stimulation perturbs intracellular Ca2+ homeostasis and decreases viability of breast cancer BT474 cells. ACTA ACUST UNITED AC 2020; 75:65-73. [PMID: 32092040 DOI: 10.1515/znc-2019-0119] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Accepted: 01/21/2020] [Indexed: 11/15/2022]
Abstract
Intracellular polyamines such as spermine and spermidine are essential to cell growth in normal and especially in cancer cells. However, whether extracellular polyamines affect cancer cell survival is unknown. We therefore examined the actions of extracellular polyamines on breast cancer BT474 cells. Our data showed that spermine, spermidine, and putrescine decreased cell viability by apoptosis. These polyamines also elicited Ca2+ signals, but the latter were unlikely triggered via Ca2+-sensing receptor (CaSR) as BT474 cells have been demonstrated previously to lack CaSR expression. Spermine-elicited Ca2+ response composed of both Ca2+ release and Ca2+ influx. Spermine caused a complete discharge of the cyclopiazonic acid (CPA)-sensitive Ca2+ pool and, expectedly, endoplasmic reticulum (ER) stress. The Ca2+ influx pore opened by spermine was Mn2+-impermeable, distinct from the CPA-triggered store-operated Ca2+ channel, which was Mn2+-permeable. Spermine cytotoxic effects were not due to oxidative stress, as spermine did not trigger reactive oxygen species formation. Our results therefore suggest that spermine acted on a putative polyamine receptor in BT474 cells, causing cytotoxicity by Ca2+ overload, Ca2+ store depletion, and ER stress.
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Affiliation(s)
- Louis W C Chow
- State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macau, China.,UNIMED Medical Institute, 8/F Club Lusitano, 16 Ice House Street, Hong Kong, China.,Organisation for Oncology and Translational Research, Unit A, 9/F, CNT Commercial Building, 302 Queen's Road Central, Hong Kong, China
| | - Kar-Lok Wong
- Department of Anesthesiology, China Medical University Hospital, Taichung, Taiwan
| | - Lian-Ru Shiao
- Department of Physiology, China Medical University, Taichung 40402, Taiwan
| | - King-Chuen Wu
- Department of Anesthesiology, Chang Gung Memorial Hospital, No. 6, Sec. West, Jiapu Rd., Puzi City, Chiayi County 61363, Taiwan.,Chang Gung University of Science and Technology, No. 2, Sec. West, Jiapu Rd., Puzi City, Chiayi County 61363, Taiwan
| | - Yuk-Man Leung
- Department of Physiology, China Medical University, Taichung 40402, Taiwan, Phone: +886-04-2205336 ext. 2185
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20
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Oum YH, Shetty D, Yoon Y, Liang Z, Voll RJ, Goodman MM, Shim H. A benzenesulfonamide derivative as a novel PET radioligand for CXCR4. Bioorg Med Chem 2020; 28:115240. [PMID: 31843463 PMCID: PMC6942325 DOI: 10.1016/j.bmc.2019.115240] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 11/20/2019] [Accepted: 11/25/2019] [Indexed: 12/24/2022]
Abstract
CXCR4 is involved in various diseases such as inflammation, tumor growth, and cancer metastasis through the interaction with its natural endogenous ligand, chemokine CXCL12. In an effort to develop imaging probes for CXCR4, we developed a novel small molecule CXCR4-targeted PET agent (compound 5) by combining our established benzenesulfonamide scaffold with a labeling component by virtue of click chemistry. 5 shows nanomolar affinity (IC50 = 6.9 nM) against a known CXCR4 antagonist (TN14003) and inhibits more than 65% chemotaxis at 10 nM in vitro assays. Radiofluorinated compound 5 ([18F]5) demonstrates a competitive cellular uptake against CXCL12 in a dose-dependent manner. Further, microPET images of [18F]5 exhibits preferential accumulation of radioactivity in the lesions of λ-carrageenan-induced paw edema, human head and neck cancer orthotopic xenograft, and metastatic lung cancer of each mouse model.
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Affiliation(s)
- Yoon Hyeun Oum
- Department of Radiation Oncology, Emory University School of Medicine, USA
| | - Dinesh Shetty
- Department of Radiology and Image Sciences, Emory University School of Medicine, USA
| | - Younghyoun Yoon
- Department of Radiation Oncology, Emory University School of Medicine, USA
| | - Zhongxing Liang
- Department of Radiation Oncology, Emory University School of Medicine, USA; Winship Cancer Institute, Atlanta, GA 30322, USA
| | - Ronald J Voll
- Department of Radiology and Image Sciences, Emory University School of Medicine, USA
| | - Mark M Goodman
- Department of Radiology and Image Sciences, Emory University School of Medicine, USA; Winship Cancer Institute, Atlanta, GA 30322, USA
| | - Hyunsuk Shim
- Department of Radiation Oncology, Emory University School of Medicine, USA; Department of Radiology and Image Sciences, Emory University School of Medicine, USA; Winship Cancer Institute, Atlanta, GA 30322, USA.
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21
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Mousavi A. CXCL12/CXCR4 signal transduction in diseases and its molecular approaches in targeted-therapy. Immunol Lett 2019; 217:91-115. [PMID: 31747563 DOI: 10.1016/j.imlet.2019.11.007] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 11/01/2019] [Accepted: 11/15/2019] [Indexed: 02/08/2023]
Abstract
Chemokines are small molecules called "chemotactic cytokines" and regulate many processes like leukocyte trafficking, homing of immune cells, maturation, cytoskeletal rearrangement, physiology, migration during development, and host immune responses. These proteins bind to their corresponding 7-membrane G-protein-coupled receptors. Chemokines and their receptors are anti-inflammatory factors in autoimmune conditions, so consider as potential targets for neutralization in such diseases. They also express by cancer cells and function as angiogenic factors, and/or survival/growth factors that enhance tumor angiogenesis and development. Among chemokines, the CXCL12/CXCR4 axis has significantly been studied in numerous cancers and autoimmune diseases. CXCL12 is a homeostatic chemokine, which is acts as an anti-inflammatory chemokine during autoimmune inflammatory responses. In cancer cells, CXCL12 acts as an angiogenic, proliferative agent and regulates tumor cell apoptosis as well. CXCR4 has a role in leukocyte chemotaxis in inflammatory situations in numerous autoimmune diseases, as well as the high levels of CXCR4, observed in different types of human cancers. These findings suggest CXCL12/CXCR4 as a potential therapeutic target for therapy of autoimmune diseases and open a new approach to targeted-therapy of cancers by neutralizing CXCL12 and CXCR4. In this paper, we reviewed the current understanding of the role of the CXCL12/CXCR4 axis in disease pathology and cancer biology, and discuss its therapeutic implications in cancer and diseases.
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Trettel F, Di Castro MA, Limatola C. Chemokines: Key Molecules that Orchestrate Communication among Neurons, Microglia and Astrocytes to Preserve Brain Function. Neuroscience 2019; 439:230-240. [PMID: 31376422 DOI: 10.1016/j.neuroscience.2019.07.035] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 07/01/2019] [Accepted: 07/19/2019] [Indexed: 12/19/2022]
Abstract
In the CNS, chemokines and chemokine receptors are involved in pleiotropic physiological and pathological activities. Several evidences demonstrated that chemokine signaling in the CNS plays key homeostatic roles and, being expressed on neurons, glia and endothelial cells, chemokines mediate the bidirectional cross-talk among parenchymal cells. An efficient communication between neurons and glia is crucial to establish and maintain a healthy brain environment which ensures normal functionality. Glial cells behave as active sensors of environmental changes induced by neuronal activity or detrimental insults, supporting and exerting neuroprotective activities. In this review we summarize the evidence that chemokines (CXCL12, CX3CL1, CXCL16 and CCL2) modulate neuroprotective processes upon different noxious stimuli and participate to orchestrate neurons-microglia-astrocytes action to preserve and limit brain damage. This article is part of a Special Issue entitled: Honoring Ricardo Miledi - outstanding neuroscientist of XX-XXI centuries.
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Affiliation(s)
- Flavia Trettel
- Department of Physiology and Pharmacology, laboratory affiliated to Istituto Pasteur Italia, Sapienza University, Piazzale Aldo Moro 5, 00185, Rome, Italy.
| | - Maria Amalia Di Castro
- Department of Physiology and Pharmacology, laboratory affiliated to Istituto Pasteur Italia, Sapienza University, Piazzale Aldo Moro 5, 00185, Rome, Italy
| | - Cristina Limatola
- Department of Physiology and Pharmacology, laboratory affiliated to Istituto Pasteur Italia, Sapienza University, Piazzale Aldo Moro 5, 00185, Rome, Italy; IRCCS Neuromed, Via Atinense 19, 86077, Pozzilli, Italy
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Liu Y, Liang HM, Lv YQ, Tang SM, Cheng P. Blockade of SDF-1/CXCR4 reduces adhesion-mediated chemoresistance of multiple myeloma cells via interacting with interleukin-6. J Cell Physiol 2019; 234:19702-19714. [PMID: 30953364 DOI: 10.1002/jcp.28570] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 03/04/2019] [Accepted: 03/06/2019] [Indexed: 12/30/2022]
Abstract
Resistance to chemotherapy represents a major cause for treatment failure in multiple myeloma (MM). Herein, this study was conducted to explore the effect of SDF-1/CXCR4 and interleukin-6 (IL-6) in MM cell adhesion-mediated chemoresistance. Enzyme-linked immunosorbent assay was applied to detect expressions of SDF-1α and IL-6 in MM patients and healthy controls. RPMI-8226 cells and isolated bone marrow stromal cells (BMSCs) were stimulated using recombinant SDF-1α and IL-6. Effect of cocultured BMSCs and RPMI-8226 cells on chemosensitivity and apoptosis of RPMI-8226 cells was analyzed. Effect of doxorubicin on the adhesion rate of RPMl-8226 cells to BMSCs was analyzed by calcitonin test. Effect of SDF-1α-induced upregulation of IL-6 on chemotherapeutic resistance and apoptosis of RPMI-8226 cells in adhesion state was analyzed. Cell adhesion model was treated with recombinant protein SDF-1α and phosphoinositide 3-kinase (P13K) inhibitor Wortmarmin. The levels of P13K and protein kinase B (AKT) and its phosphorylation as well as the expression of IL-6 were analyzed. SDF-1α was positively correlated with IL-6. Recombinant human SDF-1α increased IL-6 expression and induced IL-6 secretion in a time- and dose-dependent manner in BMSCs, which was inhibited by IL-6 and SDF-1α neutralizing antibodies. Coculture of MM cells with BMSCs increased the drug resistance and inhibited the apoptosis on MM cells. SDF-1α-induced IL-6 upregulation mediates chemoresistance and apoptosis of RPMI-8226 cells in adhesion state. SDF-1α may up-regulate the expression of IL-6 by activating the P13K/AKT signaling pathway. SDF-1/CXCR4 may up-regulate the expression of IL-6 through the activation of the P13K/AKT signaling pathway, thereby affecting the chemoresistance mediated by adhesion in MM cells.
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Affiliation(s)
- Ying Liu
- Department of Hematology, the First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People's Republic of China
| | - Hai-Mei Liang
- Guangxi Medical University, Nanning, Guangxi, People's Republic of China
| | - Yu-Qi Lv
- Guangxi Medical University, Nanning, Guangxi, People's Republic of China
| | - Shao-Mei Tang
- Guangxi Medical University, Nanning, Guangxi, People's Republic of China
| | - Peng Cheng
- Department of Hematology, the First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People's Republic of China
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Smolders SMT, Kessels S, Vangansewinkel T, Rigo JM, Legendre P, Brône B. Microglia: Brain cells on the move. Prog Neurobiol 2019; 178:101612. [PMID: 30954517 DOI: 10.1016/j.pneurobio.2019.04.001] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 02/13/2019] [Accepted: 04/01/2019] [Indexed: 02/08/2023]
Abstract
In the last decade, tremendous progress has been made in understanding the biology of microglia - i.e. the fascinating immigrated resident immune cell population of the central nervous system (CNS). Recent literature reviews have largely dealt with the plentiful functions of microglia in CNS homeostasis, development and pathology, and the influences of sex and the microbiome. In this review, the intriguing aspect of their physical plasticity during CNS development will get specific attention. Microglia move around (mobility) and reshape their processes (motility). Microglial migration into and inside the CNS is most prominent throughout development and consequently most of the data described in this review concern mobility and motility in the changing environment of the developing brain. Here, we first define microglia based on their highly specialized age- and region-dependent gene expression signature and associated functional heterogeneity. Next, we describe their origin, the migration route of immature microglial cells towards the CNS, the mechanisms underlying their invasion of the CNS, and their spatiotemporal localization and surveying behaviour inside the developing CNS. These processes are dependent on microglial mobility and motility which are determined by the microenvironment of the CNS. Therefore, we further zoom in on the changing environment during CNS development. We elaborate on the extracellular matrix and the respective integrin receptors on microglia and we discuss the purinergic and molecular signalling in microglial mobility. In the last section, we discuss the physiological and pathological functions of microglia in which mobility and motility are involved to stress the importance of microglial 'movement'.
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Affiliation(s)
- Sophie Marie-Thérèse Smolders
- UHasselt, BIOMED, Diepenbeek, Belgium; INSERM, UMR-S 1130, CNRS, UMR 8246, Neuroscience Paris Seine, Institute of Biology Paris Seine, Paris, France; Sorbonne Universités, UPMC Université Paris 06, UM CR18, Neuroscience Paris Seine, Paris, France
| | | | | | | | - Pascal Legendre
- INSERM, UMR-S 1130, CNRS, UMR 8246, Neuroscience Paris Seine, Institute of Biology Paris Seine, Paris, France; Sorbonne Universités, UPMC Université Paris 06, UM CR18, Neuroscience Paris Seine, Paris, France
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25
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Chen J, Li F, Xu Y, Zhang W, Hu Y, Fu Y, Xu W, Ge S, Fan X, Lu L. Cholesterol modification of SDF-1-specific siRNA enables therapeutic targeting of angiogenesis through Akt pathway inhibition. Exp Eye Res 2019; 184:64-71. [PMID: 30898556 DOI: 10.1016/j.exer.2019.03.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 03/05/2019] [Accepted: 03/11/2019] [Indexed: 12/13/2022]
Abstract
Neovascularization during ocular tissue repair can cause severe visual loss in the optical axis and is therefore an issue of considerable concern to ophthalmologists. Here, we introduced a cholesterol-modified siRNA delivery system targeting stromal cell-derived factor 1 (SDF-1) to treat ocular angiogenesis in vivo. SDF-1 expression was analyzed in rat endothelial progenitor cells (EPCs) and bone marrow mesenchymal stem cells (BMSCs) using quantitative PCR (qPCR). Migration ability of BMSC and HUVEC were assessed through transwell assay. The proliferation effect of chol-siSDF1 on HUVEC was measured by colony formation assay. In vivo anti-angiogenic effects of chol-siSDF1 were tested in a cornea alkali burn model and the area of cornea neovascularization was measured using computer-imaging analysis system. Then phosphorylated Akt and total Akt protein levels were measured through western blot. Results turned out that rat EPCs and BMSCs showed high SDF-1 mRNA expression, which can be down-regulated by using chol-siSDF-1. Chol-siSDF-1 could significantly inhibit migration of BMSC and HUVEC. In addition, chol-siSDF1 also could inhibit HUVEC proliferation and exert a significant anti-angiogenic effect in corneal alkali burn model. As for the mechanism, chol-siSDF1 may inhibit the neovascularization, proliferation and metastasis through inhibiting the Akt signaling pathway. Thus, cholesterol modification of siRNA targeting SDF-1 displays an effective inhibition of migration and angiogenesis, with a much longer duration of inhibition effect.
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Affiliation(s)
- Junzhao Chen
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China; Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, PR China
| | - Fang Li
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China; Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, PR China
| | - Yangfan Xu
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China; Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, PR China
| | - Weijie Zhang
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China; Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, PR China
| | - Yang Hu
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China; Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, PR China
| | - Yao Fu
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China; Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, PR China
| | - Wei Xu
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
| | - Shengfang Ge
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China; Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, PR China.
| | - Xianqun Fan
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China; Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, PR China.
| | - Linna Lu
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China; Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, PR China.
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Antagonism of Ca 2+-sensing receptors by NPS 2143 is transiently masked by p38 activation in mouse brain bEND.3 endothelial cells. Naunyn Schmiedebergs Arch Pharmacol 2019; 392:823-832. [PMID: 30826858 DOI: 10.1007/s00210-019-01637-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Accepted: 02/22/2019] [Indexed: 10/27/2022]
Abstract
Ca2+-sensing receptors (CaSR) are G protein-coupled receptors which are activated by a rise in extracellular Ca2+. CaSR activation has been known to inhibit parathyroid hormone release and stimulate calcitonin release from parathyroid glands and thyroid parafollicular C cells, respectively. The roles of CaSR in other cell types including endothelial cells (EC) are much less understood. In this work, we demonstrated protein and functional expression of CaSR in mouse cerebral EC (bEND.3). Unexpectedly, CaSR response (high Ca2+-elicited cytosolic [Ca2+] elevation) was unaffected by edelfosine or U73122 but strongly suppressed by SK&F 96365, ruthenium red, and 2-aminoethoxydiphenyl borate (2-APB), suggesting involvement of TRPV and TRPC channels but not Gq-phospholipase C. Acute application of NPS2143, a negative allosteric modulator of CaSR, suppressed CaSR response. However, a 40-min NPS2143 pre-treatment surprisingly enhanced CaSR response. After 4-24 h of application, this enhancement faded away and suppression of CaSR response was observed again. Similar results were obtained when La3+ and Sr2+ were used as CaSR agonists. The transient NPS 2143 enhancement effect was abolished by SB203580, a p38 inhibitor. Consistently, NPS 2143 triggered a transient p38 activation. Taken together, results suggest that in bEND.3 cells, NPS 2143 caused acute suppression of CaSR response, but then elicited a transient enhancement of CaSR response in a p38-dependent manner. NPS 2143 effects on CaSR in bEND.3 cells therefore depended on drug exposure time. These findings warrant cautious use of this agent as a CaSR modulator and potential cardiovascular drug.
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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: 107] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [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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Zhao K, Yao Y, Luo X, Lin B, Huang Y, Zhou Y, Li Z, Guo Q, Lu N. LYG-202 inhibits activation of endothelial cells and angiogenesis through CXCL12/CXCR7 pathway in breast cancer. Carcinogenesis 2018; 39:588-600. [PMID: 29390073 DOI: 10.1093/carcin/bgy007] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Accepted: 01/19/2018] [Indexed: 02/02/2023] Open
Abstract
Angiogenesis is critical for the growth and metastasis of triple-negative breast cancer (TNBC) and its inhibition reduces the risk of progression of metastatic TNBC. In this study, we investigated that LYG-202, a flavonoid with a piperazine substitution, inhibited angiogenesis induced by conditioned media (CM) from MDA-MB-231 cells under hypoxia and revealed its underlying mechanism. The results showed that LYG-202 decreased CXCL12 secretion and CXCR7 expression, leading to suppression of its downstream ERK/AKT/nuclear factor kappa B (NF-κB) signaling, which eventually decreased the expression of MMP-2, MMP-9, RhoA and increased VE-cadherin expression in EA.hy 926 cells treated with CM from MDA-MB-231 cells under hypoxia. The decreased migration ability, increased cell adhesion and inhibited CXCR7 pathway by LYG-202 could also be reproduced in human umbilical vein endothelial cells. More importantly, LYG-202 also inhibited tumor angiogenesis and tumor growth of human breast cancer MDA-MB-231 cells in nude mice through CXCL12/CXCR7 pathway. In summary, LYG-202 is a potential agent to prohibit tumor angiogenesis through inhibiting the activation of endothelial cells.
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Affiliation(s)
- Kai Zhao
- Department of Basic Medicine, State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Tongjiaxiang, Nanjing, People's Republic of China
| | - Yuyuan Yao
- Department of Basic Medicine, State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Tongjiaxiang, Nanjing, People's Republic of China
| | - Xuwei Luo
- Kunming Biogen Science & Technology Co., Ltd., Fengzhu Street, Kunming, China
| | - Binyan Lin
- Department of Basic Medicine, State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Tongjiaxiang, Nanjing, People's Republic of China
| | - Yujie Huang
- Department of Basic Medicine, State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Tongjiaxiang, Nanjing, People's Republic of China
| | - Yuxin Zhou
- Department of Basic Medicine, State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Tongjiaxiang, Nanjing, People's Republic of China
| | - Zhiyu Li
- Department of Medicinal Chemistry, China Pharmaceutical University, Tongjiaxiang, Nanjing, People's Republic of China
| | - Qinglong Guo
- Department of Basic Medicine, State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Tongjiaxiang, Nanjing, People's Republic of China
| | - Na Lu
- Department of Basic Medicine, State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Tongjiaxiang, Nanjing, People's Republic of China
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Lee HH, Jeong JW, Hong SH, Park C, Kim BW, Choi YH. Diallyl Trisulfide Suppresses the Production of Lipopolysaccharide-induced Inflammatory Mediators in BV2 Microglia by Decreasing the NF-κB Pathway Activity Associated With Toll-like Receptor 4 and CXCL12/CXCR4 Pathway Blockade. J Cancer Prev 2018; 23:134-140. [PMID: 30370258 PMCID: PMC6197846 DOI: 10.15430/jcp.2018.23.3.134] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 09/14/2018] [Accepted: 09/16/2018] [Indexed: 01/05/2023] Open
Abstract
Background Diallyl trisulfide (DATS), a garlic-derived organosulfuric compound, has been documented for potential anti-inflammatory effects. However, the mechanism in microglia remains unknown. In this study, we investigated the anti-inflammatory effects of DATS in lipopolysaccharide (LPS)-stimulated BV2 microglial cells. Methods The effects of DATS on LPS-induced pro-inflammatory mediators such as nitric oxide (NO) and prostaglandin E2 (PGE2) were assessed under conditions not in the cytotoxicity of DATS. The protein expression of inflammation regulatory genes was measured by Western blot analysis. Results DATS significantly inhibited the LPS-induced secretion of NO and PGE2, which was associated with the suppression of their regulatory genes, inducible NO synthase and COX-2. DATS had been shown to inhibit nuclear translocation of NF-κB by destroying the degradation and phosphorylation of IκB-α inhibitors in the cytoplasm. In addition, DATS effectively inhibited the expression of LPS-induced toll-like receptor 4 (TLR4) and myeloid differentiation factor 88. Furthermore, DATS markedly reduced the LPS-induced expression of chemokine (CXC motif) ligand (CXCL) 12 and CXC receptor (CXCR) 4, demonstrating its capacity to block chemo-attractive activity. Conclusions These results indicate that DATS inhibits the activation of the CXCL12/CXCR4 axis associated with antagonizing effect on TLR4 and blocks NF-κB signaling, thus demonstrating anti-inflammatory effects against LPS stimulation.
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Affiliation(s)
- Hye Hyeon Lee
- Anti-Aging Research Center and Blue Bio Industry RIC, Dong-Eui University, Busan, Korea
| | - Jin-Woo Jeong
- Freshwater Bioresources Utilization Bureau, Nakdonggang National Institute of Biological Resources, Sangju, Korea
| | - Su Hyun Hong
- Anti-Aging Research Center and Blue Bio Industry RIC, Dong-Eui University, Busan, Korea.,Department of Biochemistry, Dong-Eui University College of Korean Medicine, Busan, Korea
| | - Cheol Park
- Department of Molecular Biology, College of Natural Sciences, Dong-Eui University, Busan, Korea
| | - Byung Woo Kim
- Anti-Aging Research Center and Blue Bio Industry RIC, Dong-Eui University, Busan, Korea.,Department of Life Science and Biotechnology, College of Engineering, Dong-Eui University, Busan, Korea
| | - Yung Hyun Choi
- Anti-Aging Research Center and Blue Bio Industry RIC, Dong-Eui University, Busan, Korea.,Department of Biochemistry, Dong-Eui University College of Korean Medicine, Busan, Korea
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Gu W, Wang Y, Qiu Z, Dong J, Wang Y, Chen J. Maternal exposure to nonylphenol during pregnancy and lactation induces microglial cell activation and pro-inflammatory cytokine production in offspring hippocampus. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 634:525-533. [PMID: 29635194 DOI: 10.1016/j.scitotenv.2018.03.329] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Revised: 03/11/2018] [Accepted: 03/26/2018] [Indexed: 06/08/2023]
Abstract
Recently, environmental nonylphenol (NP) exposure in the fetus and child has received increasing attention because of its potentially deleterious effects on the central nervous system (CNS). Microglia (MG), resident immune cells in the CNS, are vital to CNS homeostasis and defense against exogenous chemicals, which makes them a potentially sensitive target of NP. The present study aims to explore the effects of maternal NP exposure during pregnancy and lactation on MG in offspring hippocampus, the production of pro-inflammatory cytokines by MG, and associated underlying mechanisms. We found that maternal NP exposure increased the production of interleukin-1β (IL-1β), interleukin-6 (IL-6), and tumor necrosis factor-α (TNF-α) in offspring hippocampus. Increases in both activation and number of MG were observed in offspring hippocampus. Increased phosphorylation of Akt was found to co-localize with hippocampal MG, while increased phosphorylation of c-Jun N-terminal kinase (JNK), and p38 mitogen-activated protein kinase (MAPK) were observed in offspring hippocampus. Activator protein 1 (AP-1), an inflammatory transcription factor, was also activated in the hippocampus of pups subjected to maternal NP exposure. These results suggest that maternal NP exposure might activate MG in offspring hippocampus. This activation seems to subsequently increase the production of IL-1β, IL-6, and TNF-α. Furthermore, Akt/MAPK/AP-1 signaling may be involved in this activation of MG and increased production of pro-inflammatory cytokines.
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Affiliation(s)
- Weijia Gu
- Department of Occupational and Environmental Health, School of Public Heath, China Medical University, PR China
| | - Yi Wang
- Department of Occupational and Environmental Health, School of Public Heath, China Medical University, PR China
| | - Zhenmin Qiu
- Department of Occupational and Environmental Health, School of Public Heath, China Medical University, PR China
| | - Jing Dong
- Department of Occupational and Environmental Health, School of Public Heath, China Medical University, PR China
| | - Yuan Wang
- Department of Occupational and Environmental Health, School of Public Heath, China Medical University, PR China
| | - Jie Chen
- Department of Occupational and Environmental Health, School of Public Heath, China Medical University, PR China.
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Tsai TY, Leong IL, Cheng KS, Shiao LR, Su TH, Wong KL, Chan P, Leung YM. Lysophosphatidylcholine-induced cytotoxicity and protection by heparin in mouse brain bEND.3 endothelial cells. Fundam Clin Pharmacol 2018; 33:52-62. [PMID: 29974515 DOI: 10.1111/fcp.12399] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2017] [Revised: 06/28/2018] [Accepted: 07/03/2018] [Indexed: 11/29/2022]
Affiliation(s)
- Tien-Yao Tsai
- Cardiovascular Division; Fu Jen Catholic University Hospital; New Taipei City Taiwan
- School of Medicine; College of Medicine; Fu Jen Catholic University; New Taipei City Taiwan
| | - Iat-Lon Leong
- Division of Cardiology; Department of Internal Medicine; Kiang Wu Hospital; Macau China
| | - Ka-Shun Cheng
- Department of Anesthesiology; China Medical University Hospital; Taichung Taiwan
- Department of Anesthesiology; The Qingdao University Yuhuangding Hospital; Yantai Shandong China
| | - Lian-Ru Shiao
- Department of Physiology; China Medical University; Taichung Taiwan
| | - Tzu-Hui Su
- Department of Anesthesiology; China Medical University Hospital; Taichung Taiwan
| | - Kar-Lok Wong
- Department of Anesthesiology; China Medical University Hospital; Taichung Taiwan
| | - Paul Chan
- Division of Cardiology; Department of Medicine; Taipei Medical University Wan Fang Hospital; Taipei Taiwan
| | - Yuk-Man Leung
- Department of Physiology; China Medical University; Taichung Taiwan
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32
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Qin L, Qin J, Zhen X, Yang Q, Huang L. Curcumin protects against hepatic stellate cells activation and migration by inhibiting the CXCL12/CXCR4 biological axis in liver fibrosis:A study in vitro and in vivo. Biomed Pharmacother 2018. [PMID: 29518606 DOI: 10.1016/j.biopha.2018.02.091] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
The C-X-C motif chemokine 12/C-X-C chemokine receptor type 4 (CXCL12/ CXCR4) biological axis plays an important role in the pathogenesis of liver fibrosis. Curcumin is known to have an anti-fibrosis effect, but the specific mechanism needs to be elucidated. There is currently no evidence illustrating a connection between curcumin and the CXCL12/CXCR4 axis in liver fibrosis. Here, we investigated the contribution of curcumin on CXCL12/ CXCR4 biological axis in liver fibrosis. Our results showed that curcumin remarkably improved hepatic function and liver fibrosis, and the effects are similar as silymarin. The alleviation of liver fibrosis with curcumin treatment was associated with a reduction of CXCL12, CXCR4, α-SMA and RhoA. In addition, curcumin markedly inhibited the proliferation and migration of HSC-T6 cells. This study indicates that curcumin could protect against hepatic stellate cells activation and migration by inhibiting the CXCL12/CXCR4 biological axis in liver fibrosis.
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Affiliation(s)
- Lifeng Qin
- Department of Infectious Diseases, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, 530021, China
| | - Jinmei Qin
- Department of Infectious Diseases, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, 530021, China
| | - Xiumei Zhen
- Department of Infectious Diseases, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, 530021, China
| | - Qian Yang
- Department of Infectious Diseases, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, 530021, China
| | - Liyi Huang
- Department of Infectious Diseases, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, 530021, China.
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Ma YK, Chen YB, Li P. Quercetin inhibits NTHi-triggered CXCR4 activation through suppressing IKKα/NF-κB and MAPK signaling pathways in otitis media. Int J Mol Med 2018; 42:248-258. [PMID: 29568908 PMCID: PMC5979834 DOI: 10.3892/ijmm.2018.3577] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Accepted: 02/21/2018] [Indexed: 12/16/2022] Open
Abstract
Otitis media is one of the most common bacterial infections in children, contributing to hearing loss. A vital bacterial pathogen leading to otitis media development is the nontypeable Haemophilus influenzae (NTHi). Inflammation response is reported as an important characristic for otitis media. Chemokine CXC receptor 4 (CXCR4) is a 352-amino acid seven-span transmembrane G-protein coupled receptor, essential for inflammatory response. However, the possible molecular mechanism indicating the alteration of CXCR4 modulated by NTHi is poorly known. In the present study, NTHi enhanced CXCR4 expression through phosphorylation of IKKα and p38, which relied on nuclear factor-κB (NF-κB) translocation in vitro as well as in the middle ear of mice in vivo. Previously, quercetin, a natural production mainly isolated from rutin, has shown anti-inflammatory effects. Here, we report that quercetin suppressed NTHi-induced CXCR4 expression levels in vitro and in vivo. Quercetin blocked CXCR4 activation through direct IKKβ phosphorylation inhibition, as well as of p38 MAPK restraining. Hence, identification of quercetin may be a potential therapeutic strategy for treating otitis media induced by NTHi through inflammation suppression.
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Affiliation(s)
- Yu-Kun Ma
- Department of Otorhinolaryngology, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong 510630 P.R. China
| | - Yu-Bin Chen
- Department of Otolaryngology Head and Neck Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong 510630 P.R. China
| | - Peng Li
- Department of Otolaryngology Head and Neck Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong 510630 P.R. China
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34
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Tang W, Chen Y, Wang X, Chen Y, Zhang J, Lin Z. Expression of CXC-motif-chemokine 12 and the receptor C-X-C receptor 4 in glioma and theeffect on peritumoral brain edema. Oncol Lett 2018; 15:2501-2507. [PMID: 29434965 DOI: 10.3892/ol.2017.7547] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Accepted: 03/21/2017] [Indexed: 12/18/2022] Open
Abstract
The present study aimed to evaluate the association between CXC-motif-chemokine 12 (CXCL12)/C-X-C receptor 4 (CXCR4) expression and peritumoral brain edema (PTBE) in glioma patients. Immunohistochemical techniques were used to detect the expression of CXCR4 and CXCL12 in 58 glioma tissues. Magnetic resonance imaging was used to evaluate the extent and type of brain edema in preoperative glioma patients. The association between edema and CXCL12/CXCR4 expression was examined by χ2 analysis. The prognostic significance of CXCL12 or CXCR4 was determined by log-rank tests and Cox's proportional hazards model. Expression of CXCL12 and CXCR4 was observed in vascular endothelial cells and tumor cells. The degree (P=0.033) and morphology (P=0.033) of PTBE were significantly associated with the level of CXCL12 expression in vascular endothelial cells. The degree (P=0.001) and morphology (P=0.001) of PTBE were associated with the level of CXCR4 expression in tumor cells. CXCR4-positive vascular endothelial cells were significantly associated only with the degree of edema (P=0.030). Therefore, the present study indicated that levels of CXCL12 expression in vascular endothelial cells and CXCR4 expression in tumor cells are associated with PTBE.
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Affiliation(s)
- Wenlong Tang
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian 350005, P.R. China
| | - Yupeng Chen
- Department of Pathology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian 350005, P.R. China
| | - Xingfu Wang
- Department of Pathology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian 350005, P.R. China
| | - Yao Chen
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian 350005, P.R. China
| | - Jiandong Zhang
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian 350005, P.R. China
| | - Zhixiong Lin
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian 350005, P.R. China.,Department of Neurosurgery, Beijing Sanbo Brain Hospital, Capital Medical University, Beijing 100093, P.R. China
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Cavaleri F. Presenting a New Standard Drug Model for Turmeric and Its Prized Extract, Curcumin. Int J Inflam 2018; 2018:5023429. [PMID: 29568482 PMCID: PMC5820622 DOI: 10.1155/2018/5023429] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Accepted: 12/06/2017] [Indexed: 02/07/2023] Open
Abstract
Various parts of the turmeric plant have been used as medicinal treatment for various conditions from ulcers and arthritis to cardiovascular disease and neuroinflammation. The rhizome's curcumin extract is the most studied active constituent, which exhibits an expansive polypharmacology with influence on many key inflammatory markers. Despite the expansive reports of curcucmin's therapeutic value, clinical reliability and research repeatability with curcumin treatment are still poor. The pharmacology must be better understood and reliably mapped if curcumin is to be accepted and used in modern medical applications. Although the polypharmacology of this extract has been considered, in mainstream medicine, to be a drawback, a perspective change reveals a comprehensive and even synergistic shaping of the NF-kB pathway, including transactivation. Much of the inconsistent research data and unreliable clinical outcomes may be due to a lack of standardization which also pervades research standard samples. The possibility of other well-known curcumin by-products contributing in the polypharmacology is also discussed. A new flowchart of crosstalk in transduction pathways that lead to shaping of nuclear NF-kB transactivation is generated and a new calibration or standardization protocol for the extract is proposed which could lead to more consistent data extraction and improved reliability in therapy.
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Affiliation(s)
- Franco Cavaleri
- Biologic Pharmamedical Research, 688-2397 King George Blvd., White Rock, BC, Canada V4A7E9
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36
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Kanazawa M, Ninomiya I, Hatakeyama M, Takahashi T, Shimohata T. Microglia and Monocytes/Macrophages Polarization Reveal Novel Therapeutic Mechanism against Stroke. Int J Mol Sci 2017; 18:ijms18102135. [PMID: 29027964 PMCID: PMC5666817 DOI: 10.3390/ijms18102135] [Citation(s) in RCA: 286] [Impact Index Per Article: 40.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Revised: 10/10/2017] [Accepted: 10/10/2017] [Indexed: 12/12/2022] Open
Abstract
Stroke is a leading cause of morbidity and mortality worldwide, and consists of two types, ischemic and hemorrhagic. Currently, there is no effective treatment to increase the survival rate or improve the quality of life after ischemic and hemorrhagic stroke in the subacute to chronic phases. Therefore, it is necessary to establish therapeutic strategies to facilitate functional recovery in patients with stroke during both phases. Cell-based therapies, using microglia and monocytes/macrophages preconditioned by optimal stimuli and/or any therapies targeting these cells, might be an ideal therapeutic strategy for managing stroke. Microglia and monocytes/macrophages polarize to the classic pro-inflammatory type (M1-like) or alternative protective type (M2-like) by optimal condition. Cell-based therapies using M2-like microglia and monocytes/macrophages might be protective therapeutic strategies against stroke for three reasons. First, M2-like microglia and monocytes/monocytes secrete protective remodeling factors, thus prompting neuronal network recovery via tissue (including neuronal) and vascular remodeling. Second, these cells could migrate to the injured hemisphere through the blood–brain barrier or choroid–plexus. Third, these cells could mitigate the extent of inflammation-induced injuries by suitable timing of therapeutic intervention. Although future translational studies are required, M2-like microglia and monocytes/macrophages therapies are attractive for managing stroke based on their protective functions.
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Affiliation(s)
- Masato Kanazawa
- Department of Neurology, Brain Research Institute, Niigata University, Niigata 951-8585, Japan.
| | - Itaru Ninomiya
- Department of Neurology, Brain Research Institute, Niigata University, Niigata 951-8585, Japan.
| | - Masahiro Hatakeyama
- Department of Neurology, Brain Research Institute, Niigata University, Niigata 951-8585, Japan.
| | - Tetsuya Takahashi
- Department of Neurology, Niishi-Niigata Chuo Hospital, Niigata 950-2085, Japan.
| | - Takayoshi Shimohata
- Department of Neurology and Geriatrics, Gifu University Graduate School of Medicine, Gifu 501-1193, Japan.
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37
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Signaling properties of the human chemokine receptors CXCR4 and CXCR7 by cellular electric impedance measurements. PLoS One 2017; 12:e0185354. [PMID: 28945785 PMCID: PMC5612718 DOI: 10.1371/journal.pone.0185354] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Accepted: 09/11/2017] [Indexed: 01/05/2023] Open
Abstract
The chemokine receptor 4 (CXCR4) and 7 (CXCR7) are G-protein-coupled receptors involved in various diseases including human cancer. As such, they have become important targets for therapeutic intervention. Cell-based receptor assays, able to detect agents that modulate receptor activity, are of key importance for drug discovery. We evaluated the potential of cellular electric impedance for this purpose. Dose-dependent and specific stimulation of CXCR4 was detected upon addition of its unique chemokine ligand CXCL12. The response magnitude correlated with the CXCR4 expression level. Gαi coupling and signaling contributed extensively to the impedance response, whereas Gαq- and Gβγ-related events had only minor effects on the impedance profile. CXCR7 signaling could not be detected using impedance measurements. However, increasing levels of CXCR7 expression significantly reduced the CXCR4-mediated impedance readout, suggesting a regulatory role for CXCR7 on CXCR4-mediated signaling. Taken together, cellular electric impedance spectroscopy can represent a valuable alternative pharmacological cell-based assay for the identification of molecules targeting CXCR4, but not for CXCR7 in the absence of CXCR4.
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38
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Kim JH, Shim JW, Eum DY, Kim SD, Choi SH, Yang K, Heo K, Park MT. Downregulation of UHRF1 increases tumor malignancy by activating the CXCR4/AKT-JNK/IL-6/Snail signaling axis in hepatocellular carcinoma cells. Sci Rep 2017; 7:2798. [PMID: 28584306 PMCID: PMC5459852 DOI: 10.1038/s41598-017-02935-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Accepted: 04/20/2017] [Indexed: 12/19/2022] Open
Abstract
UHRF1 (ubiquitin-like, with PHD and RING finger domains 1) plays a crucial role in DNA methylation, chromatin remodeling and gene expression and is aberrantly upregulated in various types of human cancers. However, the precise role of UHRF1 in cancer remains controversial. In this study, we observed that hypoxia-induced downregulation of UHRF1 contributes to the induction of the epithelial-mesenchymal transition (EMT) in hepatocellular carcinoma cells. By negatively modulating UHRF1 expression, we further showed that UHRF1 deficiency in itself is sufficient to increase the migratory and invasive properties of cells via inducing EMT, increasing the tumorigenic capacity of cells and leading to the expansion of cancer stem-like cells. Epigenetic changes caused by UHRF1 deficiency triggered the upregulation of CXCR4, thereby activating AKT and JNK to increase the expression and secretion of IL-6. In addition, IL-6 readily activated the JAK/STAT3/Snail signaling axis, which subsequently contributed to UHRF1 deficiency-induced EMT. Our results collectively demonstrate that UHRF1 deficiency may play a pivotal role in the malignant alteration of cancer cells.
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Affiliation(s)
- Ji-Hyun Kim
- Research Center, Dongnam Institute of Radiological & Medical Sciences (DIRAMS), Busan, 46033, Republic of Korea
| | - Jae-Woong Shim
- Research Center, Dongnam Institute of Radiological & Medical Sciences (DIRAMS), Busan, 46033, Republic of Korea
| | - Da-Young Eum
- Research Center, Dongnam Institute of Radiological & Medical Sciences (DIRAMS), Busan, 46033, Republic of Korea
| | - Sung Dae Kim
- Research Center, Dongnam Institute of Radiological & Medical Sciences (DIRAMS), Busan, 46033, Republic of Korea
| | - Si Ho Choi
- Research Center, Dongnam Institute of Radiological & Medical Sciences (DIRAMS), Busan, 46033, Republic of Korea
| | - Kwangmo Yang
- Research Center, Dongnam Institute of Radiological & Medical Sciences (DIRAMS), Busan, 46033, Republic of Korea
| | - Kyu Heo
- Research Center, Dongnam Institute of Radiological & Medical Sciences (DIRAMS), Busan, 46033, Republic of Korea.
| | - Moon-Taek Park
- Research Center, Dongnam Institute of Radiological & Medical Sciences (DIRAMS), Busan, 46033, Republic of Korea.
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Li J, Yin G, Chen M, Yang S, Wu A, Liang J, Yuan Z. Expression of CXCL12 and its receptor CXCR4 in patients with adenomyosis. Oncol Lett 2017; 13:2731-2736. [PMID: 28454459 DOI: 10.3892/ol.2017.5762] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Accepted: 12/09/2016] [Indexed: 01/21/2023] Open
Abstract
The aim of the present study was to investigate the role of chemokine (C-X-C motif) ligand 12 (CXCL12) and its receptor, chemokine (C-X-C motif) receptor 4 (CXCR4) in the pathogenesis of adenomyosis (AD). Immunohistochemistry and reverse transcription-quantitative polymerase chain reaction analysis were used to measure the protein and mRNA expression of CXCL12 and CXCR4 in eutopic endometrial and ectopic foci tissue samples. Samples from a total of 36 patients with AD (study group) were compared with endometrial tissue samples from 33 patients who underwent uterine fibroids surgery (control group) during the same period. All data are presented as the mean ± standard deviation and were analyzed with SPSS software (version 16.0). Analysis of variance was used for between group analysis and pairwise comparison was performed using Fisher's least significant difference post hoc test. The results of the present study revealed that CXCL12 and CXCR4 protein expression was significantly increased in ectopic foci tissue compared with eutopic endometrial tissue samples from patients with AD. CXCL12 and CXCR4 protein expression in ectopic foci and eutopic endometrial tissue samples were significantly increased compared with the control group (P<0.05 for between group comparisons). No significant differences were identified in CXCL12 and CXCR4 protein expression between the proliferative and secretory phases within each group. Furthermore, CXCL12 and CXCR4 mRNA expression was significantly increased in ectopic foci tissue and eutopic endometrial tissue compared with the control group (P<0.05 for between group comparisons). CXCL12 mRNA expression was markedly increased in ectopic foci tissue compared with eutopic endometrial tissue of patients with AD. The expression of CXCR4 mRNA was significantly increased in eutopic endometrial tissue compared with ectopic foci tissue and the control group (P<0.05 for between group comparisons). No significant differences were identified in CXCL12 and CXCR4 mRNA expression between proliferative and secretory phase within each group. In conclusion, CXCL12 and CXCR4 may induce the ectopia, and promote the spread and localized growth of endometrial cells in the development of AD.
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Affiliation(s)
- Juan Li
- Department of Obstetrics and Gynecology, Jinan Military General Hospital, Jinan, Shandong 250031, P.R. China
| | - Geping Yin
- Department of Obstetrics and Gynecology, Jinan Military General Hospital, Jinan, Shandong 250031, P.R. China
| | - Ming Chen
- Department of Obstetrics and Gynecology, Jinan Military General Hospital, Jinan, Shandong 250031, P.R. China
| | - Shujun Yang
- Department of Obstetrics and Gynecology, Jinan Military General Hospital, Jinan, Shandong 250031, P.R. China
| | - Aifang Wu
- Department of Obstetrics and Gynecology, Jinan Military General Hospital, Jinan, Shandong 250031, P.R. China
| | - Jing Liang
- Department of Obstetrics and Gynecology, Jinan Military General Hospital, Jinan, Shandong 250031, P.R. China
| | - Zheng Yuan
- Department of Obstetrics and Gynecology, Jinan Military General Hospital, Jinan, Shandong 250031, P.R. China
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40
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Zadka Ł, Dzięgiel P, Kulus M, Olajossy M. Clinical Phenotype of Depression Affects Interleukin-6 Synthesis. J Interferon Cytokine Res 2017; 37:231-245. [PMID: 28418766 DOI: 10.1089/jir.2016.0074] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Major depressive disorder (MDD) is not a single disease, but a number of various ailments that form one entity. Psychomotor retardation, anhedonia, sleep disorders, an increased suicide risk, and anxiety are the main symptoms that often define the clinical diagnosis of depression. Interleukin-6 (IL-6), as one of the proinflammatory cytokines, seems to be overexpressed during certain mental disorders, including MDD. Overexpression of IL-6 in depression is thought to be a factor associated with bad prognosis and worse disease course. IL-6 may directly affect brain functioning and production of neurotransmitters; moreover, its concentration is correlated with certain clinical symptoms within the wide range of depressive symptomatology. Furthermore, there is a strong correlation between IL-6 synthesis and psychosomatic functioning of the patient. This article discusses potential sources and significance of IL-6 in the pathogenesis of depression.
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Affiliation(s)
- Łukasz Zadka
- 1 Department of Histology and Embryology, Wroclaw Medical University , Wrocław, Poland .,2 II Department of Psychiatry and Psychiatric Rehabilitation, Independent Public Teaching Hospital No 1 in Lublin, Medical University of Lublin , Lublin, Poland
| | - Piotr Dzięgiel
- 1 Department of Histology and Embryology, Wroclaw Medical University , Wrocław, Poland
| | - Michał Kulus
- 1 Department of Histology and Embryology, Wroclaw Medical University , Wrocław, Poland
| | - Marcin Olajossy
- 2 II Department of Psychiatry and Psychiatric Rehabilitation, Independent Public Teaching Hospital No 1 in Lublin, Medical University of Lublin , Lublin, Poland
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41
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CXCL12 methylation-mediated epigenetic regulation of gene expression in papillary thyroid carcinoma. Sci Rep 2017; 7:44033. [PMID: 28272462 PMCID: PMC5356381 DOI: 10.1038/srep44033] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Accepted: 01/31/2017] [Indexed: 01/13/2023] Open
Abstract
Papillary thyroid carcinoma (PTC) is the most common type of thyroid cancer, and its incidence rate is rapidly growing. It is necessary to understand the pathogenesis of PTC to develop effective diagnosis methods. Promoter methylation has been recognized to contribute to the alterations in gene expression observed in tumorigenesis. Our RNA-seq data identified 1191 differentially expressed mRNAs and 147 differentially expressed lncRNAs in PTC. Next, promoter methylation of these genes was detected by reduced representation bisulfite sequencing (RRBS) technology and comprehensively analyzed to identify differential methylation. In total, 14 genes (13 mRNAs and 1 lncRNA), in which methylation was intimately involved in regulating gene expression, were proposed as novel diagnostic biomarkers. To gain insights into the relationships among these 14 genes, a core co-function network was constructed based on co-expression, co-function and co-methylation data. Notably, CXCL12 was identified as an essential gene in the network that was closely connected with the other genes. These data suggested that CXCL12 down-regulation in PTC may be caused by promoter hypermethylation. Our study was the first to perform an RRBS analysis for PTC and suggested that CXCL12 may contribute to PTC development by methylation-mediated epigenetic regulation of gene expression.
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42
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Fan Y, Xie L, Chung CY. Signaling Pathways Controlling Microglia Chemotaxis. Mol Cells 2017; 40:163-168. [PMID: 28301917 PMCID: PMC5386953 DOI: 10.14348/molcells.2017.0011] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Revised: 03/05/2017] [Accepted: 03/07/2017] [Indexed: 12/20/2022] Open
Abstract
Microglia are the primary resident immune cells of the central nervous system (CNS). They are the first line of defense of the brain's innate immune response against infection, injury, and diseases. Microglia respond to extracellular signals and engulf unwanted neuronal debris by phagocytosis, thereby maintaining normal cellular homeostasis in the CNS. Pathological stimuli such as neuronal injury induce transformation and activation of resting microglia with ramified morphology into a motile amoeboid form and activated microglia chemotax toward lesion site. This review outlines the current research on microglial activation and chemotaxis.
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Affiliation(s)
- Yang Fan
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072,
P.R. China
| | - Lirui Xie
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072,
P.R. China
| | - Chang Y. Chung
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072,
P.R. China
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43
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Kanazawa M, Miura M, Toriyabe M, Koyama M, Hatakeyama M, Ishikawa M, Nakajima T, Onodera O, Takahashi T, Nishizawa M, Shimohata T. Microglia preconditioned by oxygen-glucose deprivation promote functional recovery in ischemic rats. Sci Rep 2017; 7:42582. [PMID: 28195185 PMCID: PMC5307390 DOI: 10.1038/srep42582] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Accepted: 01/12/2017] [Indexed: 01/27/2023] Open
Abstract
Cell-therapies that invoke pleiotropic mechanisms may facilitate functional recovery in stroke patients. We hypothesized that a cell therapy using microglia preconditioned by optimal oxygen-glucose deprivation (OGD) is a therapeutic strategy for ischemic stroke because optimal ischemia induces anti-inflammatory M2 microglia. We first delineated changes in angiogenesis and axonal outgrowth in the ischemic cortex using rats. We found that slight angiogenesis without axonal outgrowth were activated at the border area within the ischemic core from 7 to 14 days after ischemia. Next, we demonstrated that administration of primary microglia preconditioned by 18 hours of OGD at 7 days prompted functional recovery at 28 days after focal cerebral ischemia compared to control therapies by marked secretion of remodelling factors such as vascular endothelial growth factor, matrix metalloproteinase-9, and transforming growth factor-β polarized to M2 microglia in vitro/vivo. In conclusion, intravascular administration of M2 microglia preconditioned by optimal OGD may be a novel therapeutic strategy against ischemic stroke.
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Affiliation(s)
- Masato Kanazawa
- Department of Neurology, Brain Research Institute, Niigata University, 1-757 Asahimachi-dori, Chuoku, Niigata, Japan
| | - Minami Miura
- Department of Neurology, Brain Research Institute, Niigata University, 1-757 Asahimachi-dori, Chuoku, Niigata, Japan
| | - Masafumi Toriyabe
- Department of Neurology, Brain Research Institute, Niigata University, 1-757 Asahimachi-dori, Chuoku, Niigata, Japan
| | - Misaki Koyama
- Department of Neurology, Brain Research Institute, Niigata University, 1-757 Asahimachi-dori, Chuoku, Niigata, Japan
| | - Masahiro Hatakeyama
- Department of Neurology, Brain Research Institute, Niigata University, 1-757 Asahimachi-dori, Chuoku, Niigata, Japan
| | - Masanori Ishikawa
- Department of Neurology, Brain Research Institute, Niigata University, 1-757 Asahimachi-dori, Chuoku, Niigata, Japan
| | - Takashi Nakajima
- Department of Neurology, Niigata National Hospital, National Hospital Organization, 3-52 Akasaka-cho, Kashiwazaki, Niigata, Japan
| | - Osamu Onodera
- Department of Neurology, Brain Research Institute, Niigata University, 1-757 Asahimachi-dori, Chuoku, Niigata, Japan
| | - Tetsuya Takahashi
- Department of Neurology, Brain Research Institute, Niigata University, 1-757 Asahimachi-dori, Chuoku, Niigata, Japan
| | - Masatoyo Nishizawa
- Department of Neurology, Brain Research Institute, Niigata University, 1-757 Asahimachi-dori, Chuoku, Niigata, Japan
| | - Takayoshi Shimohata
- Department of Neurology, Brain Research Institute, Niigata University, 1-757 Asahimachi-dori, Chuoku, Niigata, Japan
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44
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Kotaka K, Nagai J, Hensley K, Ohshima T. Lanthionine ketimine ester promotes locomotor recovery after spinal cord injury by reducing neuroinflammation and promoting axon growth. Biochem Biophys Res Commun 2016; 483:759-764. [PMID: 27965088 DOI: 10.1016/j.bbrc.2016.12.069] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Accepted: 12/09/2016] [Indexed: 11/26/2022]
Abstract
The mammalian central nervous system (CNS) has limited regenerative ability after injury, largely due to scar formation and axonal growth inhibitors. Experimental suppression of neuroinflammation encourages recovery from spinal cord injury (SCI), yet practical means for pharmacologically treating SCI have remained elusive. Lanthionine ketimine (LK) is a natural brain sulfur amino acid metabolite with demonstrated anti-neuroinflammatory and neurotrophic activities. LK and its synthetic brain-penetrating ethyl ester (LKE) promote growth factor-dependent neurite extension in cultured cell and suppress microglial activation in animal models of neurodegeneration. Thus far however, LKE has not been explored as a potential therapy for SCI. The present study investigated the hypothesis that systemic LKE could improve motor functional recovery after SCI in a mouse model. Intraperitoneal administration of LKE (100 mg/kg/d) after near-complete transect of spinal cord at the T7 level significantly improved motor function over a 4-week time course. Vehicle-treated mice, in contrast, demonstrated negligible functional recovery. In terms of histology, LKE treatment reduced pro-neuroinflammatory microglia/macrophage activation evidenced by quantitative Iba1 labeling and shifted the microglial phenotype toward a more neurotrophic M2 character evidenced by changes in the M2 marker arginase-1. This was correlated with less dense scar formation and more extensive axonal regrowth across the transection site demonstrated by 5-hydroxytryptamine (5HT) immunolabeling of raphespinal tract axons. These data provide evidence that LKE or similar compounds have potential therapeutic value for recovery after certain forms of SCI.
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Affiliation(s)
- Ken Kotaka
- Department of Life Science and Medical Bioscience, Graduate School of Advanced Science and Engineering, Waseda University, TWIns, Tokyo, 162-8480, Japan
| | - Jun Nagai
- Department of Life Science and Medical Bioscience, Graduate School of Advanced Science and Engineering, Waseda University, TWIns, Tokyo, 162-8480, Japan; Research Fellow of Japan Society for the Promotion of Science, Japan
| | - Kenneth Hensley
- Department of Pathology, University of Toledo, College of Medicine, Toledo, OH, USA
| | - Toshio Ohshima
- Department of Life Science and Medical Bioscience, Graduate School of Advanced Science and Engineering, Waseda University, TWIns, Tokyo, 162-8480, Japan.
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45
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Li XQ, Zhang ZL, Tan WF, Sun XJ, Ma H. Down-Regulation of CXCL12/CXCR4 Expression Alleviates Ischemia-Reperfusion-Induced Inflammatory Pain via Inhibiting Glial TLR4 Activation in the Spinal Cord. PLoS One 2016; 11:e0163807. [PMID: 27760212 PMCID: PMC5070836 DOI: 10.1371/journal.pone.0163807] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Accepted: 09/14/2016] [Indexed: 12/20/2022] Open
Abstract
Toll-like receptor 4 (TLR4) is important for the pathogenesis of inflammatory reactions and the promotion of pain processing after ischemia/reperfusion (IR) in spinal cord. Recently, C-X-C chemokine ligand 12 (CXCL12) and its receptor, C-X-C chemokine receptor 4 (CXCR4), were demonstrated to be simultaneously critical for inflammatory reactions, thereby facilitating glial activation. However, whether CXCL12/CXCR4 expression can contribute to IR-induced inflammatory pain via spinal TLR4 remained unclear. A rat model was established by 8 min of aortic arch occlusion. The effects of CXCL12/CXCR4 expression and TLR4 activation on inflammatory hyperalgesia were investigated by pretreatments with CXCL12-neutralizing antibody, CXCR4 antagonist (AMD3100) and TLR4 antagonist (TAK-242) for 5 consecutive days before surgery. The results indicated that IR induced significant and sustained inflammatory pain, observed as decreases in paw withdrawal threshold (PWT) and paw withdrawal latency (PWL), throughout the post-injury period. The increased levels of TLR4 and proinflammatory chemokine CXCL12, as well as its receptor, CXCR4, were closely correlated with the PWT and PWL trends. Double immunostaining further suggested that TLR4, which is mainly expressed on astrocytes and microglia, was closely co-localized with CXCL12 and CXCR4 in spinal dorsal horn. As expected, intrathecal pretreatment with the TLR4 antagonist, TAK-242 markedly ameliorated pain by inhibiting astrocytic and microglial activation, as shown by decreases in TLR4 immunoreactivity and the percentage of double-labeled cells. These protective effects were likely due in part to the reduced production of the downstream cytokines IL-1β and TNF-α, as well as for the recruitment of CXCL12 and CXCR4. Additionally, intrathecal pretreatment with CXCL12-neutralizing antibody and AMD3100 resulted in similar analgesic and anti-inflammatory effects as those receiving TAK-242 pretreatment. These results suggest that intrathecal blockade of CXCL12/CXCR4 expression may attenuate IR-induced pain sensation and the release of inflammatory cytokines by limiting glial TLR4 activation in spinal cord.
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Affiliation(s)
- Xiao-Qian Li
- Department of Anesthesiology, First Affiliated Hospital, China Medical University, Shenyang 110001, Liaoning, China
| | - Zai-Li Zhang
- Department of Anesthesiology, First Affiliated Hospital, China Medical University, Shenyang 110001, Liaoning, China
| | - Wen-Fei Tan
- Department of Anesthesiology, First Affiliated Hospital, China Medical University, Shenyang 110001, Liaoning, China
| | - Xi-Jia Sun
- Department of Anesthesiology, First Affiliated Hospital, China Medical University, Shenyang 110001, Liaoning, China
| | - Hong Ma
- Department of Anesthesiology, First Affiliated Hospital, China Medical University, Shenyang 110001, Liaoning, China
- * E-mail:
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Seemann S, Lupp A. Administration of AMD3100 in endotoxemia is associated with pro-inflammatory, pro-oxidative, and pro-apoptotic effects in vivo. J Biomed Sci 2016; 23:68. [PMID: 27716214 PMCID: PMC5048674 DOI: 10.1186/s12929-016-0286-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Accepted: 09/27/2016] [Indexed: 12/28/2022] Open
Abstract
Background Chemokine receptor 4 (CXCR4) is a multifunctional G protein-coupled receptor that is activated by its natural ligand, C-X-C motif chemokine 12 (CXCL12). As a likely member of the lipopolysaccharide (LPS)-sensing complex, CXCR4 is involved in pro-inflammatory cytokine production and exhibits substantial chemo-attractive activity for various inflammatory cells. Here, we aimed to characterize the effects of CXCR4 blockade in systemic inflammation and to evaluate its impact on organ function. Furthermore, we investigated whether CXCR4 blockade exerts deleterious effects, thereby substantiating previous studies showing a beneficial outcome after treatment with CXCR4 agonists in endotoxemia. Methods The CXCR4 antagonist AMD3100 was administered intraperitoneally to mice shortly after LPS treatment. After 24 h, health status was determined and serum tumor necrosis factor alpha (TNF alpha), interferon gamma (IFN gamma), and nitric oxide (NO) levels were measured. We further assessed oxidative stress in the brain, kidney, and liver as well as liver biotransformation capacity. Finally, we utilized immunohistochemistry and immunoblotting in liver and spleen tissue to determine cluster of differentiation 3 (CD3), CD8, CD68, and TNF alpha expression patterns, and to assess the presence of various markers for apoptosis and oxidative stress. Results Mice treated with AMD3100 displayed impaired health status and showed enhanced serum levels of TNF alpha, IFN gamma and NO levels in endotoxemia. This compound also amplified LPS-induced oxidative stress in all tissues investigated and decreased liver biotransformation capacity in co-treated animals. Co-treatment with AMD3100 further inhibited expression of nuclear factor (erythroid-derived 2)-like 2 (Nrf-2), heme oxygenase-1 (HO-1), and various cytochrome P450 enzymes, whereas it enhanced expression of CD3, inducible nitric oxide synthase, and TNF alpha, as well as the total number of neutrophils in liver tissue. Spleens from co-treated animals contained large numbers of erythrocytes and neutrophils, but fewer CD3+ cells, and demonstrated increased apoptosis in the white pulp. Conclusions AMD3100 administration in a mouse model of endotoxemia further impaired health status and liver function and mediated pro-inflammatory, pro-oxidative, and pro-apoptotic effects. This suggests that interruption of the CXCR4/CXCL12 axis is deleterious in acute inflammation and confirms previous findings showing beneficial effects of CXCR4 agonists in endotoxemia, thereby more clearly elucidating the role of CXCR4 in inflammation. Electronic supplementary material The online version of this article (doi:10.1186/s12929-016-0286-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Semjon Seemann
- Institute of Pharmacology and Toxicology, Jena University Hospital, Friedrich Schiller University Jena, Drackendorfer Str. 1, 07747, Jena, Germany.
| | - Amelie Lupp
- Institute of Pharmacology and Toxicology, Jena University Hospital, Friedrich Schiller University Jena, Drackendorfer Str. 1, 07747, Jena, Germany
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Abstract
MicroRNAs (miRNAs) are small non-coding RNA comprising approximately 19-25 nucleotides. miRNAs can act as tumour suppressors or oncogenes, and aberrant expression of miRNAs has been reported in several human cancers and has been associated with cancer initiation and progression. Recent evidence suggests that miRNAs play a major role in thyroid carcinogenesis. In this review, we summarize the role of miRNAs in thyroid cancer and describe the oncogenic or tumour suppressor function of miRNAs as well as their clinical utility as prognostic or diagnostic markers in thyroid cancer.
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Affiliation(s)
- Myriem Boufraqech
- Endocrine Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Joanna Klubo-Gwiezdzinska
- Metabolic Disease Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Electron Kebebew
- Endocrine Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA.
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Markoski MM. Advances in the Use of Stem Cells in Veterinary Medicine: From Basic Research to Clinical Practice. SCIENTIFICA 2016; 2016:4516920. [PMID: 27379197 PMCID: PMC4917716 DOI: 10.1155/2016/4516920] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2015] [Revised: 03/30/2016] [Accepted: 05/16/2016] [Indexed: 06/01/2023]
Abstract
Today, several veterinary diseases may be treated with the administration of stem cells. This is possible because these cells present a high therapeutic potential and may be injected as autologous or allogenic, freshly isolated, or previously cultured. The literature supports that the process is safe and brings considerable benefits to animal health. Knowledge about how adult stem cells modulate the molecular signals to activate cell homing has also been increasingly determined, evidencing the mechanisms which enable cells to repair and regenerate injured tissues. Preclinical studies were designed for many animal models and they have contributed to the translation to the human clinic. This review shows the most commonly used stem cell types, with emphasis on mesenchymal stem cells and their mechanistic potential to repair, as well as the experimental protocols, studied diseases, and species with the highest amount of studies and applications. The relationship between stem cell protocols utilized on clinics, molecular mechanisms, and the physiological responses may offer subsidies to new studies and therefore improve the therapeutic outcome for both humans and animals.
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Affiliation(s)
- Melissa Medeiros Markoski
- Laboratório de Cardiologia Molecular e Celular, Fundação Universitária de Cardiologia/Instituto de Cardiologia, Princesa Isabel Avenue 370, 90620-001 Porto Alegre, RS, Brazil
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Qin G, Chen Y, Li H, Xu S, Li Y, Sun J, Rao W, Chen C, Du M, He K, Ye Y. Melittin inhibits tumor angiogenesis modulated by endothelial progenitor cells associated with the SDF-1α/CXCR4 signaling pathway in a UMR-106 osteosarcoma xenograft mouse model. Mol Med Rep 2016; 14:57-68. [PMID: 27177128 PMCID: PMC4918564 DOI: 10.3892/mmr.2016.5215] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Accepted: 01/29/2016] [Indexed: 12/31/2022] Open
Abstract
Endothelial progenitor cells (EPCs) are important in tumor angiogenesis. Stromal cell-derived factor-1α (SDF-1α) and its receptor C-X-C chemokine receptor type 4 (CXCR4) are key in stem cell homing. Melittin, a component of bee venom, exerts antitumor activity, however, the underlying mechanisms remain to be elucidated. The present study aimed to assess the effects of melittin on EPCs and angiogenesis in a mouse model of osteosarcoma. UMR-106 cells and EPCs were treated with various concentrations of melittin and cell viability was determined using the MTT assay. EPC adherence, migration and tube forming ability were assessed. Furthermore, SDF-1α, AKT and extracellular signal-regulated kinase (ERK)1/2 expression levels were detected by western blotting. Nude mice were inoculated with UMR-106 cells to establish an osteosarcoma mouse model. The tumors were injected with melittin, and its effects were assessed by immunohistochemistry and immunofluorescence. Melittin decreased the viability of UMR-106 cells and EPCs. In addition, it decreased EPC adhesion, migration and tube formation when compared with control and SDF-1α-treated cells. Melittin decreased the expression of phosphorylated (p)-AKT, p-ERK1/2, SDF-1α and CXCR4 in UMR-106 cells and EPCs when compared with the control. The proportions of cluster of differentiation (CD)34/CD133 double-positive cells were 16.4±10.4% in the control, and 7.0±4.4, 2.9±1.2 and 1.3±0.3% in tumors treated with 160, 320 and 640 µg/kg melittin per day, respectively (P<0.05). At 11 days, melittin reduced the tumor size when compared with that of the control (control, 4.8±1.3 cm3; melittin, 3.2±0.6, 2.6±0.5, and 2.0±0.2 cm3 for 160, 320 and 640 µg/kg, respectively; all P<0.05). Melittin decreased the microvessel density, and SDF-1α and CXCR4 protein expression levels in the tumors. Melittin may decrease the effect of osteosarcoma on EPC-mediated angiogenesis, possibly via inhibition of the SDF-1α/CXCR4 signaling pathway.
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Affiliation(s)
- Gang Qin
- Department of Orthopedics, The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning, Guangxi 530023, P.R. China
| | - Yongqiang Chen
- Department of Orthopedics, Shanghai Municipal Hospital of Traditional Chinese Medicine Affiliated to Shanghai TCM University, Shanghai 200071, P.R. China
| | - Haidong Li
- Department of Orthopedics, Shanghai Municipal Hospital of Traditional Chinese Medicine Affiliated to Shanghai TCM University, Shanghai 200071, P.R. China
| | - Suyang Xu
- Department of Orthopedics, Shanghai Municipal Hospital of Traditional Chinese Medicine Affiliated to Shanghai TCM University, Shanghai 200071, P.R. China
| | - Yumei Li
- Department of Orthopedics, Shanghai Municipal Hospital of Traditional Chinese Medicine Affiliated to Shanghai TCM University, Shanghai 200071, P.R. China
| | - Jian Sun
- Department of Orthopedics, Shanghai Municipal Hospital of Traditional Chinese Medicine Affiliated to Shanghai TCM University, Shanghai 200071, P.R. China
| | - Wu Rao
- Department of Orthopedics, Shanghai Municipal Hospital of Traditional Chinese Medicine Affiliated to Shanghai TCM University, Shanghai 200071, P.R. China
| | - Chaowei Chen
- Department of Orthopedics, Shanghai Municipal Hospital of Traditional Chinese Medicine Affiliated to Shanghai TCM University, Shanghai 200071, P.R. China
| | - Mindong Du
- Department of Orthopedics, The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning, Guangxi 530023, P.R. China
| | - Kaiyi He
- Department of Orthopedics, The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning, Guangxi 530023, P.R. China
| | - Yong Ye
- College of Pharmacy, Guangxi Medical University, Nanning, Guangxi 530000, P.R. China
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Zhu X, Bai Q, Lu Y, Lu Y, Zhu L, Zhou X, Wu L. Expression and function of CXCL12/CXCR4/CXCR7 in thyroid cancer. Int J Oncol 2016; 48:2321-9. [PMID: 27082011 PMCID: PMC4864059 DOI: 10.3892/ijo.2016.3485] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2015] [Accepted: 02/12/2016] [Indexed: 12/13/2022] Open
Abstract
The contribution of CXCL12/CXCR4/CXCR7 axis to cancer progression has been increasingly recognized. However, its role in thyroid cancer development remains unclear. The present study aimed to examine the expression and function of CXCL12 and its receptors in thyroid cancer. The expression of CXCL12/CXCR4/CXCR7 in human tissue specimens of papillary, follicular, medullary, and anaplastic thyroid carcinoma, follicular adenoma, Hashimoto's thyroiditis and nodular goiter were examined by immunohistochemistry using a tissue microarray. CXCR4 and CXCR7 were over-expressed in human thyroid cancer cells K1 by transduction of recombinant lentivirus. The effect of overexpression of CXCR4 and CXCR7 on K1 cell proliferation and invasion and the molecular mechanism underlying the effect were investigated. CXCL12 was exclusively expressed in papillary thyroid carcinoma tissue but absent in other types of thyroid malignancies and benign lesions. CXCR7 was widely expressed in the endothelial cells of all types of malignancy but only occasionally detected in benign lesions. CXCR4 was expressed in 62.5% of papillary thyroid carcinoma tissue specimens and in 30–40% of other types of malignancy, and it was either absent or weakly expressed in benign lesions. CXCL12 stimulated the invasion and migration of K1 cells overexpressing CXCR4, but did not affect K1 cells overexpressing CXCR7. K1 cell proliferation was not affected by overexpression of CXCR4 or CXCR7. Overexpression of CXCR4 in K1 cells significantly increased AKT and ERK phosphorylation and markedly induced the expression and activity of matrix metalloproteinase-2 (MMP-2). Thus, CXCL12 may be an effective diagnostic marker for papillary thyroid carcinoma, and CXCL12/CXCR4/CXCR7 axis may contribute to thyroid cancer development by regulating cancer cell migration and invasion via AKT and ERK signaling and MMP-2 activation.
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Affiliation(s)
- Xiaoli Zhu
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai 200032, P.R. China
| | - Qianming Bai
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai 200032, P.R. China
| | - Yongming Lu
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai 200032, P.R. China
| | - Yiqiong Lu
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai 200032, P.R. China
| | - Linlin Zhu
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai 200032, P.R. China
| | - Xiaoyan Zhou
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai 200032, P.R. China
| | - Lijing Wu
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai 200032, P.R. China
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