1
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Hui San S, Ching Ngai S. E-cadherin re-expression: Its potential in combating TRAIL resistance and reversing epithelial-to-mesenchymal transition. Gene 2024; 909:148293. [PMID: 38373660 DOI: 10.1016/j.gene.2024.148293] [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: 10/13/2023] [Revised: 02/08/2024] [Accepted: 02/15/2024] [Indexed: 02/21/2024]
Abstract
The major limitation of conventional chemotherapy drugs is their lack of specificity for cancer cells. As a selective apoptosis-inducing agent, tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL) has emerged as an attractive alternative. However, most of the cancer cells are found to be either intrinsically resistant to the TRAIL protein or may develop resistance after multiple treatments, and TRAIL resistance can induce epithelial-to-mesenchymal transition (EMT) at a later stage, promoting cancer invasion and migration. Interestingly, E-cadherin loss has been linked to TRAIL resistance and initiation of EMT, making E-cadherin re-expression a potential target to overcome these obstacles. Recent research suggests that re-expressing E-cadherin may reduce TRAIL resistance by enhancing TRAIL-induced apoptosis and preventing EMT by modulating EMT signalling factors. This reversal of EMT, can also aid in improving TRAIL-induced apoptosis. Therefore, this review provides remarkable insights into the mechanisms underlying E-cadherin re-expression, clinical implications, and potentiation, as well as the research gaps of E-cadherin re-expression in the current cancer treatment.
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Affiliation(s)
- Ser Hui San
- School of Biosciences, Faculty of Science and Engineering, University of Nottingham Malaysia, 43500 Semenyih, Selangor, Malaysia
| | - Siew Ching Ngai
- School of Biosciences, Faculty of Science and Engineering, University of Nottingham Malaysia, 43500 Semenyih, Selangor, Malaysia.
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2
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Wang S, He Y, Wang J, Luo E. Re-exploration of immunotherapy targeting EMT of hepatocellular carcinoma: Starting from the NF-κB pathway. Biomed Pharmacother 2024; 174:116566. [PMID: 38631143 DOI: 10.1016/j.biopha.2024.116566] [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: 11/22/2023] [Revised: 01/15/2024] [Accepted: 04/04/2024] [Indexed: 04/19/2024] Open
Abstract
Hepatocellular carcinoma (HCC) is the fifth most common malignancies worldwide, and its high morbidity and mortality have brought a heavy burden to the global public health system. Due to the concealment of its onset, the limitation of treatment, the acquisition of multi-drug resistance and radiation resistance, the treatment of HCC cannot achieve satisfactory results. Epithelial mesenchymal transformation (EMT) is a key process that induces progression, distant metastasis, and therapeutic resistance to a variety of malignant tumors, including HCC. Therefore, targeting EMT has become a promising tumor immunotherapy method for HCC. The NF-κB pathway is a key regulatory pathway for EMT. Targeting this pathway has shown potential to inhibit HCC infiltration, invasion, distant metastasis, and therapeutic resistance. At present, there are still some controversies about this pathway and new ideas of combined therapy, which need to be further explored. This article reviews the progress of immunotherapy in improving EMT development in HCC cells by exploring the mechanism of regulating EMT.
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Affiliation(s)
- Shuang Wang
- Department of Hepatobiliary and Pancreatic Surgery, Chengdu Fifth People's Hospital, Chengdu, Sichuan 611130, PR China
| | - Yan He
- School of Medical and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, PR China
| | - Jun Wang
- Department of Hepatobiliary and Pancreatic Surgery, Chengdu Fifth People's Hospital, Chengdu, Sichuan 611130, PR China
| | - En Luo
- Department of Hepatobiliary and Pancreatic Surgery, Chengdu Fifth People's Hospital, Chengdu, Sichuan 611130, PR China.
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3
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Youssef KK, Nieto MA. Epithelial-mesenchymal transition in tissue repair and degeneration. Nat Rev Mol Cell Biol 2024:10.1038/s41580-024-00733-z. [PMID: 38684869 DOI: 10.1038/s41580-024-00733-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/26/2024] [Indexed: 05/02/2024]
Abstract
Epithelial-mesenchymal transitions (EMTs) are the epitome of cell plasticity in embryonic development and cancer; during EMT, epithelial cells undergo dramatic phenotypic changes and become able to migrate to form different tissues or give rise to metastases, respectively. The importance of EMTs in other contexts, such as tissue repair and fibrosis in the adult, has become increasingly recognized and studied. In this Review, we discuss the function of EMT in the adult after tissue damage and compare features of embryonic and adult EMT. Whereas sustained EMT leads to adult tissue degeneration, fibrosis and organ failure, its transient activation, which confers phenotypic and functional plasticity on somatic cells, promotes tissue repair after damage. Understanding the mechanisms and temporal regulation of different EMTs provides insight into how some tissues heal and has the potential to open new therapeutic avenues to promote repair or regeneration of tissue damage that is currently irreversible. We also discuss therapeutic strategies that modulate EMT that hold clinical promise in ameliorating fibrosis, and how precise EMT activation could be harnessed to enhance tissue repair.
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Affiliation(s)
| | - M Angela Nieto
- Instituto de Neurociencias (CSIC-UMH), Sant Joan d'Alacant, Spain.
- CIBERER, Centro de Investigación Biomédica en Red de Enfermedades Raras, ISCIII, Madrid, Spain.
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4
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García de Herreros A. Dual role of Snail1 as transcriptional repressor and activator. Biochim Biophys Acta Rev Cancer 2024; 1879:189037. [PMID: 38043804 DOI: 10.1016/j.bbcan.2023.189037] [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: 10/24/2023] [Revised: 11/27/2023] [Accepted: 11/27/2023] [Indexed: 12/05/2023]
Abstract
Snail1 transcriptional factor plays a key role in the control of epithelial to mesenchymal transition, a process that remodels tumor cells increasing their invasion and chemo-resistance as well as reprograms their metabolism and provides stemness properties. During this transition, Snail1 acts as a transcriptional repressor and, as growing evidences have demonstrated, also as a direct activator of mesenchymal genes. In this review, I describe the different proteins that interact with Snail1 and are responsible for these two different functions on gene expression; I focus on the transcriptional factors that associate to Snail1 in their target promoters, both activated and repressed. I also present working models for Snail1 action both as repressor and activator and raise some issues that still need to be investigated.
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Affiliation(s)
- Antonio García de Herreros
- Programa de Recerca en Càncer, Hospital del Mar Research Institute (IMIM), Unidad Asociada al CSIC, Barcelona, Spain; Departament de Medicina i Ciències de la Vida, Universitat Pompeu Fabra, Barcelona, Spain.
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5
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Oh A, Pardo M, Rodriguez A, Yu C, Nguyen L, Liang O, Chorzalska A, Dubielecka PM. NF-κB signaling in neoplastic transition from epithelial to mesenchymal phenotype. Cell Commun Signal 2023; 21:291. [PMID: 37853467 PMCID: PMC10585759 DOI: 10.1186/s12964-023-01207-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 06/25/2023] [Indexed: 10/20/2023] Open
Abstract
NF-κB transcription factors are critical regulators of innate and adaptive immunity and major mediators of inflammatory signaling. The NF-κB signaling is dysregulated in a significant number of cancers and drives malignant transformation through maintenance of constitutive pro-survival signaling and downregulation of apoptosis. Overactive NF-κB signaling results in overexpression of pro-inflammatory cytokines, chemokines and/or growth factors leading to accumulation of proliferative signals together with activation of innate and select adaptive immune cells. This state of chronic inflammation is now thought to be linked to induction of malignant transformation, angiogenesis, metastasis, subversion of adaptive immunity, and therapy resistance. Moreover, accumulating evidence indicates the involvement of NF-κB signaling in induction and maintenance of invasive phenotypes linked to epithelial to mesenchymal transition (EMT) and metastasis. In this review we summarize reported links of NF-κB signaling to sequential steps of transition from epithelial to mesenchymal phenotypes. Understanding the involvement of NF-κB in EMT regulation may contribute to formulating optimized therapeutic strategies in cancer. Video Abstract.
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Affiliation(s)
- Amy Oh
- Division of Hematology/Oncology, Department of Medicine, Rhode Island Hospital, Warren Alpert Medical School of Brown University, One Hoppin St., Coro West, Suite 5.01, RI, 02903, Providence, USA
| | - Makayla Pardo
- Division of Hematology/Oncology, Department of Medicine, Rhode Island Hospital, Warren Alpert Medical School of Brown University, One Hoppin St., Coro West, Suite 5.01, RI, 02903, Providence, USA
| | - Anaelena Rodriguez
- Division of Hematology/Oncology, Department of Medicine, Rhode Island Hospital, Warren Alpert Medical School of Brown University, One Hoppin St., Coro West, Suite 5.01, RI, 02903, Providence, USA
| | - Connie Yu
- Division of Hematology/Oncology, Department of Medicine, Rhode Island Hospital, Warren Alpert Medical School of Brown University, One Hoppin St., Coro West, Suite 5.01, RI, 02903, Providence, USA
| | - Lisa Nguyen
- Division of Hematology/Oncology, Department of Medicine, Rhode Island Hospital, Warren Alpert Medical School of Brown University, One Hoppin St., Coro West, Suite 5.01, RI, 02903, Providence, USA
| | - Olin Liang
- Division of Hematology/Oncology, Department of Medicine, Rhode Island Hospital, Warren Alpert Medical School of Brown University, One Hoppin St., Coro West, Suite 5.01, RI, 02903, Providence, USA
| | - Anna Chorzalska
- Division of Hematology/Oncology, Department of Medicine, Rhode Island Hospital, Warren Alpert Medical School of Brown University, One Hoppin St., Coro West, Suite 5.01, RI, 02903, Providence, USA
| | - Patrycja M Dubielecka
- Division of Hematology/Oncology, Department of Medicine, Rhode Island Hospital, Warren Alpert Medical School of Brown University, One Hoppin St., Coro West, Suite 5.01, RI, 02903, Providence, USA.
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6
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Huang C, Zheng D, Fu C, Cai Z, Zhang H, Xie Z, Luo L, Li H, Huang Y, Chen J. Secreted S100A4 causes asthmatic airway epithelial barrier dysfunction induced by house dust mite extracts via activating VEGFA/VEGFR2 pathway. ENVIRONMENTAL TOXICOLOGY 2023; 38:1431-1444. [PMID: 36883729 DOI: 10.1002/tox.23776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 02/21/2023] [Accepted: 02/25/2023] [Indexed: 05/18/2023]
Abstract
The airway epithelial barrier dysfunction plays a crucial role in pathogenesis of asthma and causes the amplification of downstream inflammatory signal pathway. S100 calcium binding protein A4 (S100A4), which promotes metastasis, have recently been discovered as an effective inflammatory factor and elevated in bronchoalveolar lavage fluid in asthmatic mice. Vascular endothelial growth factor-A (VEGFA), is considered as vital regulator in vascular physiological activities. Here, we explored the probably function of S100A4 and VEGFA in asthma model dealt with house dust mite (HDM) extracts. Our results showed that secreted S100A4 caused epithelial barrier dysfunction, airway inflammation and the release of T-helper 2 cytokines through the activation of VEGFA/VEGFR2 signaling pathway, which could be partial reversed by S100A4 polyclonal antibody, niclosamide and S100A4 knockdown, representing a potential therapeutic target for airway epithelial barrier dysfunction in asthma.
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Affiliation(s)
- Chaowen Huang
- Department of Pulmonary and Critical Care Medicine, Jiangmen Institute of Respiratory Disease, Jiangmen Central Hospital, Jiangmen, China
| | - Dongyan Zheng
- Department of Environmental and Occupational Health, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Chunlai Fu
- Department of Emergency Intensive Care Unit, Affiliated Dongguan People's Hospital, Southern Medical University, Dongguan, China
| | - Ziwei Cai
- Department of Environmental and Occupational Health, School of Public Health, Guangdong Medical University, Dongguan, China
| | - He Zhang
- Department of Environmental and Occupational Health, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Zhefan Xie
- Department of Emergency Intensive Care Unit, Affiliated Dongguan People's Hospital, Southern Medical University, Dongguan, China
| | - Lishan Luo
- Department of Respiratory and Critical Care Medicine, Huizhou Municipal Central Hospital, Huizhou, China
| | - Huifang Li
- Department of Environmental and Occupational Health, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Yanming Huang
- Department of Pulmonary and Critical Care Medicine, Jiangmen Institute of Respiratory Disease, Jiangmen Central Hospital, Jiangmen, China
| | - Jialong Chen
- Department of Environmental and Occupational Health, School of Public Health, Guangdong Medical University, Dongguan, China
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7
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Fuertes G, Del Valle‐Pérez B, Pastor J, Andrades E, Peña R, García de Herreros A, Duñach M. Noncanonical Wnt signaling promotes colon tumor growth, chemoresistance and tumor fibroblast activation. EMBO Rep 2023; 24:e54895. [PMID: 36704936 PMCID: PMC10074097 DOI: 10.15252/embr.202254895] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 12/21/2022] [Accepted: 01/11/2023] [Indexed: 01/28/2023] Open
Abstract
Colon tumors of the mesenchymal subtype have the lowest overall survival. Snail1 is essential for the acquisition of this phenotype, characterized by increased tumor stemness and invasion, and high resistance to chemotherapy. Here, we find that Snail1 expression in colon tumor cells is dependent on an autocrine noncanonical Wnt pathway. Accordingly, depletion of Ror2, the co-receptor for noncanonical Wnts such as Wnt5a, potently decreases Snail1 expression. Wnt5a, Ror2, and Snail1 participate in a self-stimulatory feedback loop since Wnt5a increases its own synthesis in a Ror2- and Snail1-dependent fashion. This Wnt5a/Ror2/Snail1 axis controls tumor invasion, chemoresistance, and formation of tumor spheres. It also stimulates TGFβ synthesis; consequently, tumor cells expressing Snail1 are more efficient in activating cancer-associated fibroblasts than the corresponding controls. Ror2 downmodulation or inhibition of the Wnt5a pathway decreases Snail1 expression in primary colon tumor cells and their ability to form tumors and liver metastases. Finally, the expression of SNAI1, ROR2, and WNT5A correlates in human colon and other tumors. These results identify inhibition of the noncanonical Wnt pathway as a putative colon tumor therapy.
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Affiliation(s)
- Guillem Fuertes
- Departament de Bioquímica i Biologia Molecular, CEB, Facultat de MedicinaUniversitat Autònoma de BarcelonaBellaterraSpain
- Programa de Recerca en CàncerInstitut Hospital del Mar d'Investigacions Mèdiques (IMIM), Unitat Associada al CSICBarcelonaSpain
| | - Beatriz Del Valle‐Pérez
- Departament de Bioquímica i Biologia Molecular, CEB, Facultat de MedicinaUniversitat Autònoma de BarcelonaBellaterraSpain
- Programa de Recerca en CàncerInstitut Hospital del Mar d'Investigacions Mèdiques (IMIM), Unitat Associada al CSICBarcelonaSpain
- Departament de Medicina i Ciències de la VidaUniversitat Pompeu FabraBarcelonaSpain
| | - Javier Pastor
- Departament de Bioquímica i Biologia Molecular, CEB, Facultat de MedicinaUniversitat Autònoma de BarcelonaBellaterraSpain
- Programa de Recerca en CàncerInstitut Hospital del Mar d'Investigacions Mèdiques (IMIM), Unitat Associada al CSICBarcelonaSpain
| | - Evelyn Andrades
- Departament de DermatologiaHospital del MarBarcelonaSpain
- Grup de Malalties Inflamatòries i Neoplàsiques DermatològiquesInstitut Hospital del Mar d'Investigacions Mèdiques (IMIM)BarcelonaSpain
| | - Raúl Peña
- Programa de Recerca en CàncerInstitut Hospital del Mar d'Investigacions Mèdiques (IMIM), Unitat Associada al CSICBarcelonaSpain
| | - Antonio García de Herreros
- Programa de Recerca en CàncerInstitut Hospital del Mar d'Investigacions Mèdiques (IMIM), Unitat Associada al CSICBarcelonaSpain
- Departament de Medicina i Ciències de la VidaUniversitat Pompeu FabraBarcelonaSpain
| | - Mireia Duñach
- Departament de Bioquímica i Biologia Molecular, CEB, Facultat de MedicinaUniversitat Autònoma de BarcelonaBellaterraSpain
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8
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Liu N, Liu D, Cao S, Lei J. Silencing of adipocyte enhancer-binding protein 1 (AEBP1) alleviates renal fibrosis in vivo and in vitro via inhibition of the β-catenin signaling pathway. Hum Cell 2023; 36:972-986. [PMID: 36738398 DOI: 10.1007/s13577-023-00859-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 01/17/2023] [Indexed: 02/05/2023]
Abstract
Renal fibrosis is the common final pathway in many renal diseases regardless of the underlying etiology. Adipocyte enhancer-binding protein 1 (AEBP1) was reported to play a vital role in the development of organ fibrosis, but its role in renal fibrosis has not been reported. Thus, the aim of this study was to investigate the possible function of AEBP1 in renal fibrosis and the mechanism associated with the β-catenin signaling pathway. A total of 83 genes upregulated after unilateral ureteral obstruction (UUO) were screened from two Gene Expression Omnibus (GEO) datasets and subjected to Gene Ontology (GO) function and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis. Among them, AEBP1 was enriched in collagen binding and the regulation of collagen fibril organization and was confirmed to be upregulated in UUO kidneys and TGF-β1-induced cells. Knockdown of AEBP1 ameliorated renal fibrosis via reducing collagen accumulation, inhibiting epithelial-mesenchymal transition and fibroblast transformation, as evidenced by decreases in the expression of collagen I and III, Col1a1, Col3a1, fibronectin, Snail, α-SMA, as well as collagen-specific staining of kidney tissues, whereas the E-cadherin was increased. Besides, AEBP1 silencing inhibited the expression of β-catenin in nucleus and β-catenin downstream proteins (Axin2, Myc, and Ccnd1). Continuously active β-catenin-S33Y further restored the inhibitory effect of AEBP1 silencing on renal fibrosis. These findings indicate that knockdown of AEBP1 could potentially slow down renal fibrosis by blocking the β-catenin signaling pathway, highlighting the potential of AEBP1 as a therapeutic target for renal fibrosis.
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Affiliation(s)
- Naiquan Liu
- Department of Nephrology, Shengjing Hospital of China Medical University, 39#, Huaxiang Road, Tiexi District, Shenyang, 110022, China
| | - Dajun Liu
- Department of Nephrology, Shengjing Hospital of China Medical University, 39#, Huaxiang Road, Tiexi District, Shenyang, 110022, China.
| | - Shiyu Cao
- Department of Clinical Medicine, Class of 2018, China Medical University, Shenyang, China
| | - Jing Lei
- Department of Nephrology, Shengjing Hospital of China Medical University, 39#, Huaxiang Road, Tiexi District, Shenyang, 110022, China
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9
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Wadey KS, Somos A, Leyden G, Blythe H, Chan J, Hutchinson L, Poole A, Frankow A, Johnson JL, George SJ. Pro-inflammatory role of Wnt/β-catenin signaling in endothelial dysfunction. Front Cardiovasc Med 2023; 9:1059124. [PMID: 36794234 PMCID: PMC9923234 DOI: 10.3389/fcvm.2022.1059124] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Accepted: 12/14/2022] [Indexed: 01/18/2023] Open
Abstract
Background Endothelial dysfunction is a critical component of both atherosclerotic plaque formation and saphenous vein graft failure. Crosstalk between the pro-inflammatory TNF-α-NFκB signaling axis and the canonical Wnt/β-catenin signaling pathway potentially plays an important role in regulating endothelial dysfunction, though the exact nature of this is not defined. Results In this study, cultured endothelial cells were challenged with TNF-α and the potential of a Wnt/β-catenin signaling inhibitor, iCRT-14, in reversing the adverse effects of TNF-α on endothelial physiology was evaluated. Treatment with iCRT-14 lowered nuclear and total NFκB protein levels, as well as expression of NFκB target genes, IL-8 and MCP-1. Inhibition of β-catenin activity with iCRT-14 suppressed TNF-α-induced monocyte adhesion and decreased VCAM-1 protein levels. Treatment with iCRT-14 also restored endothelial barrier function and increased levels of ZO-1 and focal adhesion-associated phospho-paxillin (Tyr118). Interestingly, inhibition of β-catenin with iCRT-14 enhanced platelet adhesion in cultured TNF-α-stimulated endothelial cells and in an ex vivo human saphenous vein model, most likely via elevating levels of membrane-tethered vWF. Wound healing was moderately retarded by iCRT-14; hence, inhibition of Wnt/β-catenin signaling may interfere with re-endothelialisation in grafted saphenous vein conduits. Conclusion Inhibition of the Wnt/β-catenin signaling pathway with iCRT-14 significantly recovered normal endothelial function by decreasing inflammatory cytokine production, monocyte adhesion and endothelial permeability. However, treatment of cultured endothelial cells with iCRT-14 also exerted a pro-coagulatory and moderate anti-wound healing effect: these factors may affect the suitability of Wnt/β-catenin inhibition as a therapy for atherosclerosis and vein graft failure.
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Affiliation(s)
- Kerry S. Wadey
- Bristol Medical School, Translational Health Sciences, University of Bristol, Bristol, United Kingdom,*Correspondence: Kerry S. Wadey,
| | - Alexandros Somos
- Bristol Medical School, Translational Health Sciences, University of Bristol, Bristol, United Kingdom
| | - Genevieve Leyden
- Bristol Medical School, Translational Health Sciences, University of Bristol, Bristol, United Kingdom
| | - Hazel Blythe
- Bristol Medical School, Translational Health Sciences, University of Bristol, Bristol, United Kingdom
| | - Jeremy Chan
- Bristol Medical School, Translational Health Sciences, University of Bristol, Bristol, United Kingdom
| | - Lawrence Hutchinson
- School of Physiology, Pharmacology and Neuroscience, Translational Health Sciences, University of Bristol, Bristol, United Kingdom
| | - Alastair Poole
- School of Physiology, Pharmacology and Neuroscience, Translational Health Sciences, University of Bristol, Bristol, United Kingdom
| | - Aleksandra Frankow
- Bristol Medical School, Translational Health Sciences, University of Bristol, Bristol, United Kingdom
| | - Jason L. Johnson
- Bristol Medical School, Translational Health Sciences, University of Bristol, Bristol, United Kingdom
| | - Sarah J. George
- Bristol Medical School, Translational Health Sciences, University of Bristol, Bristol, United Kingdom
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10
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Wen Y, Li Y, Yang B, Guo X, Lin L, Liang J, Zhang K, Li X, Jiang Z, Wang Y, Li Y, Wu X, Fan X, Li F, Yuan W. Pygo1 Regulates the Behavior of Human Non-Small-Cell Lung Cancer via the Wnt/ β-Catenin Pathway. DISEASE MARKERS 2022; 2022:6993994. [PMID: 36398031 PMCID: PMC9666017 DOI: 10.1155/2022/6993994] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Accepted: 10/12/2022] [Indexed: 01/27/2024]
Abstract
Abnormal activation of the classical Wnt pathway has been reported in non-small-cell lung cancer (NSCLC) previously. Pygo family genes, the core regulators of Wnt/β-catenin signaling, were also reported to be involved in tumorigenesis. However, the role of the homolog Pygo1 in human lung cancer remains unclear. In the current study, we demonstrated an association of increased Pygo1 expression with consistent high nuclear β-catenin signals across pathological tissue samples of early-stage human NSCLC. Overexpression of Pygo1 in lung cancer cells resulted in enhanced G1/S cell phase transformation, reduced apoptosis, and increased cell proliferation. These changes were accompanied by the downregulation of cell cycle-related proteins, such as RB, p16, p53, and p27Kip1, and increased expression of CyclinE1. Migration, wound healing, and colony formation assays revealed that Pygo1 overexpression enhanced the invasion and migration of lung cancer cells, increased the formation of clones, and suppressed E-cadherin expression. In addition, overexpression of Pygo1 in lung cancer cells led to an increase of β-catenin/TCF4 complex, as well as upregulated expression of target genes of β-catenin. In vivo experiments also revealed that Pygo1 overexpression promoted the tumorigenicity of a xenograft tumor model, while Wnt inhibition partially blocked the effect of Pygo1 overexpression. In conclusion, Pygo1 affects human NSCLC via the canonical Wnt/β-catenin pathway, which provides new clues for lung cancer pathology.
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Affiliation(s)
- Yao Wen
- State Key Laboratory of Development Biology of Freshwater Fish, The Center for Heart Development, The College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - Yuling Li
- State Key Laboratory of Development Biology of Freshwater Fish, The Center for Heart Development, The College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - Boyu Yang
- State Key Laboratory of Development Biology of Freshwater Fish, The Center for Heart Development, The College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - Xiangrong Guo
- State Key Laboratory of Development Biology of Freshwater Fish, The Center for Heart Development, The College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - Li Lin
- State Key Laboratory of Development Biology of Freshwater Fish, The Center for Heart Development, The College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - Jifeng Liang
- State Key Laboratory of Development Biology of Freshwater Fish, The Center for Heart Development, The College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - Kai Zhang
- National Clinical Research Center for Geriatric Disorders, Department of Geriatrics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Xu Li
- The Second Department of Thoracic Surgery, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan 410013, China
| | - Zhigang Jiang
- State Key Laboratory of Development Biology of Freshwater Fish, The Center for Heart Development, The College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - Yuequn Wang
- State Key Laboratory of Development Biology of Freshwater Fish, The Center for Heart Development, The College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - Yongqing Li
- State Key Laboratory of Development Biology of Freshwater Fish, The Center for Heart Development, The College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - Xiushan Wu
- State Key Laboratory of Development Biology of Freshwater Fish, The Center for Heart Development, The College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
- Guangdong Provincial Key Laboratory of Pathogenesis, Targeted Prevention and Treatment of Heart Disease, Guangzhou, Guangdong 510000, China
| | - Xiongwei Fan
- State Key Laboratory of Development Biology of Freshwater Fish, The Center for Heart Development, The College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - Fang Li
- State Key Laboratory of Development Biology of Freshwater Fish, The Center for Heart Development, The College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - Wuzhou Yuan
- State Key Laboratory of Development Biology of Freshwater Fish, The Center for Heart Development, The College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
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11
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Ashour H, Farghaly ME, Khowailed AA, Aboulhoda BE, Rashed LA, Elsebaie MM, Gaber SS. Modulation of miR-192/NF-κB/ TGF-β/ E-cadherin by thymoquinone protects against diethylnitrosamine /carbon tetrachloride hepatotoxicity. Physiol Int 2022. [PMID: 36001412 DOI: 10.1556/2060.2022.00163] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Revised: 02/26/2022] [Accepted: 05/16/2022] [Indexed: 02/18/2024]
Abstract
Scientific efforts have been made for a better understanding of the pathogenesis of hepatocellular carcinoma (HCC). We investigated the possible role of miR-192/nuclear factor-κB (NF-κB)/transforming growth factor-β (TGF-β)/E-cadherin in hepatic tumorigenesis. We expected a modulatory impact of thymoquinone. Thirty adult male rats were assigned into 3 groups (n = 10); (1) Control group. Group (2): Experimental HCC induced by intraperitoneal injection of diethylnitrosamine (DENA) followed by carbon tetrachloride (CCl4). Group (3): Thymoquinone 20 mg kg-1/oral supplementation starting from the model induction to the end of the 8th week. The HCC (DENA-CCL4) model was confirmed by elevated serum levels of alpha-fetoprotein and transaminases (ALT, AST) and by histopathological examination which denoted marked cellular atypia and features of neoplasia. Suppressed hepatic miR-192 and E-cadherin expression were detected in the HCC (DENA-CCL4) group accompanied by elevated tumor necrosis factor (TNF-α), interleukin (IL6)/NF-κB & TGF-β1. Thymoquinone treatment protected the rat livers from hepatic tumorigenesis. Thymoquinone diminished (P < 0.001) alpha-fetoprotein and improved ALT, AST. It preserved hepatic miR-192 and normal E-cadherin expression. Thymoquinone-treated rats showed abrogated TNF-α, IL6/NF-κB/TGF-β. Thymoquinone increased cell apoptosis markers Bax/Bcl2 and diminished cellular atypia. Pearson's correlations revealed positive association between miR-192 expression and E-cadherin and Bax/Bcl2 as well, and it was negatively correlated to alpha-fetoprotein, NF-κB and TGF-β and the cellular atypia score. In conclusion, thymoquinone protected the liver tissues through preserving miR-192 and E-cadherin and aborting NF-κB & TGF-β signaling. The current results highlight a new role for thymoquinone in preventing hepatic tumorigenesis.
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Affiliation(s)
- Hend Ashour
- 1 Department of Medical Physiology, Faculty of Medicine, King Khalid University, Abha, Saudi Arabia
- 2 Department of Medical Physiology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Maha Eid Farghaly
- 3 Department of Medical Physiology, Faculty of Medicine, Beni-Suef University, Beni-Suef, Egypt
| | | | - Basma Emad Aboulhoda
- 4 Department of Anatomy and Embryology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Laila Ahmed Rashed
- 5 Department of Biochemistry, Faculty of Medicine, Cairo University, Cairo, Egypt
| | | | - Safy Salah Gaber
- 3 Department of Medical Physiology, Faculty of Medicine, Beni-Suef University, Beni-Suef, Egypt
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12
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Multifunctional Role of Lipids in Modulating the Tumorigenic Properties of 4T1 Breast Cancer Cells. Int J Mol Sci 2022; 23:ijms23084240. [PMID: 35457057 PMCID: PMC9024985 DOI: 10.3390/ijms23084240] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 04/04/2022] [Accepted: 04/08/2022] [Indexed: 02/04/2023] Open
Abstract
Tumor growth and progression are linked to an altered lipid metabolism in the tumor microenvironment (TME), including tumor cells and tumor-associated macrophages (TAMs). A growing number of lipid metabolism targeting drugs have shown efficacy in anti-tumor therapy. In addition, exogenously applied lipids and lipid analogues have demonstrated anti-tumor activities in several cancers, including breast cancer. In this study, we investigated the anti-tumor efficacies of the natural lipids palmitic acid (PA), sphingomyelin (SM), ceramide (Cer) and docosahexaenoic acid (DHA) on breast cancer cells. All tested lipids reduced the malignancy of breast cancer cells in vitro by impairing cell proliferation, migration and invasiveness. PA showed superior anti-tumor properties, as it additionally impaired cancer cell viability by inducing apoptosis, without affecting healthy cells. Co-culture experiments further demonstrated that Cer and PA reduced the immunosuppressive phenotype of M2 macrophages and the M2 macrophage-promoted the epithelial–mesenchymal transition (EMT) and migration of breast cancer cells. At the molecular level, this coincided with the up-regulation of E-cadherin. Our results highlight a powerful role for exogenously applied PA and Cer in reducing breast cancer tumorigenicity by simultaneously targeting cancer cells and M2 macrophages. Our findings support the notion that lipids represent alternative biocompatible therapeutic agents for breast cancer.
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13
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Bacteroides fragilis Toxin Induces Intestinal Epithelial Cell Secretion of Interleukin-8 by the E-Cadherin/β-Catenin/NF-κB Dependent Pathway. Biomedicines 2022; 10:biomedicines10040827. [PMID: 35453577 PMCID: PMC9032310 DOI: 10.3390/biomedicines10040827] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Revised: 03/24/2022] [Accepted: 03/30/2022] [Indexed: 11/29/2022] Open
Abstract
Enterotoxigenic Bacteroides fragilis (ETBF) has emerged as a gut microbiome pathogen that can promote colitis associated cancer in humans. ETBF secretes the metalloprotease, B. fragilis toxin (BFT), which can induce ectodomain cleavage of E-cadherin and IL-8 secretion through the β-catenin, NF-κB, and MAPK pathways in intestinal epithelial cells. However, it is still unclear whether E-cadherin cleavage is required for BFT induced IL-8 secretion and the relative contribution of these signaling pathways to IL-8 secretion. Using siRNA knockdown and CRISPR knockout studies, we found that E-cadherin cleavage is required for BFT mediated IL-8 secretion. In addition, genetic ablation of β-catenin indicates that β-catenin is required for the BFT induced increase in transcriptional activity of NF-κB, p65 nuclear localization and early IL-8 secretion. These results suggest that BFT induced β-catenin signaling is upstream of NF-κB activation. However, despite β-catenin gene disruption, BFT still activated the MAPK pathway, suggesting that the BFT induced activation of the MAPK signaling pathway is independent from the E-cadherin/β-catenin/NF-κB pathway. These findings show that E-cadherin and β-catenin play a critical role in acute inflammation following ETBF infection through the inflammatory response to BFT in intestinal epithelial cells.
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14
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Zhang N, Shao F, Jia W. Upregulation of microfibrillar-associated protein 2 is closely associated with tumor angiogenesis and poor prognosis in hepatocellular carcinoma. Oncol Lett 2021; 22:739. [PMID: 34466151 PMCID: PMC8387853 DOI: 10.3892/ol.2021.13000] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 07/12/2021] [Indexed: 12/13/2022] Open
Abstract
Abnormal expression of microfibrillar-associated protein 2 (MFAP2), a key regulator of cellular differentiation, affects the occurrence and progression of tumors. However, the underlying role of MAFP2 in hepatocellular carcinoma (HCC) remains unclear. In the present study, patterns of MFAP2 expression in HCC were analyzed using sequencing data from The Cancer Genome Atlas database. Expression profiles of MFAP2, as well as those of epithelial-mesenchymal transition (EMT)-related proteins, were compared between HCC pathological sections and fresh tissues. Thereafter, associations between patterns of MFAP2 expression and the clinicopathological characteristics of patients, and identified risk factors associated with disease-free survival (DFS) and overall survival (OS), were determined. The functions of MFAP2 in the EMT-induced proliferation and migration of MHCC97H cells were investigated using in vitro experiments, and the effects of MFAP2 on vascular endothelial growth factor A (VEGFA)-induced tumor angiogenesis were also investigated. Upregulation of MFAP2 expression was observed in HCC, and was often accompanied by the abnormal expression of EMT-related marker proteins. In addition, analysis of clinical data from 94 patients with tumor tissues revealed a significant positive correlation between MFAP2 expression and low DFS and low OS following surgery. Through in vitro experimentation, silencing MFAP2 expression was shown inhibit EMT, which thereby inhibited cellular proliferation and migration. Moreover, downregulation of MFAP2 inhibited tumor angiogenesis via the inhibition of VEGFA. Taken together, these findings indicate that MFAP2 has the potential to predict the prognosis of patients with HCC. MFAP2 also induces tumor cell proliferation and migration through EMT, and promotes tumor blood vessel formation through VEGFA, suggesting that MFAP2 may be a potential therapeutic target for HCC.
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Affiliation(s)
- Nu Zhang
- Department of General Surgery, Anhui Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250021, P.R. China
| | - Feng Shao
- Department of General Surgery, Anhui Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250021, P.R. China
| | - Weidong Jia
- Department of General Surgery, Anhui Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250021, P.R. China
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15
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Chakravarty V, Anandi L, Ashiq KA, Abhijith K, Umesh R, Lahiri M. Prolonged Exposure to Platelet Activating Factor Transforms Breast Epithelial Cells. Front Genet 2021; 12:634938. [PMID: 33841500 PMCID: PMC8027472 DOI: 10.3389/fgene.2021.634938] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Accepted: 03/03/2021] [Indexed: 01/06/2023] Open
Abstract
Lipid species are known to have various biological functions owing to their structural differences, and each of them possesses a specific role to play depending upon their location and distribution in the cell. Some of these lipids interact with proteins on the cell membrane and acts as second messengers. The level of lipid mediators is generally maintained in the cell by feedback mechanisms; however, their improper degradation or enhanced production leads to their accumulation in the tumor microenvironment and disturbs the homeostasis of the cell. Platelet activating factor (PAF) is a known phospholipid mediator secreted upon immunological challenges by platelets, neutrophils, basophils, and macrophages. PAF, as a potent inflammatory molecule, is well studied, and its role in various cancers and cardiovascular diseases has also been investigated. Interestingly, increased levels of PAF have been found in the blood plasma of smokers, and breast cancer cells have shown the accumulation of PAF in presence of cigarette smoke extract. This accumulation was found to increase tumor cell motility that in turn could promote metastasis. Beyond this, however, the effect of PAF on tumorigenesis has not yet been well explored. Here, we show that the continuous exposure of 3D breast acinar cultures to PAF resulted in the activation of various oncogenic signaling pathways leading to transformation. We also found that the presence of PAF in the micro-environment increased the expression of PAF receptor (PAF-R), which corroborated with the higher expression of PAF-R detected in some epithelial cancers, as per literature. Thus, this study impresses on the fact that the presence of PAF alters the cellular microenvironment and eventually triggers irreversible effects that can cumulatively lead to transformation.
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Affiliation(s)
- Vaishali Chakravarty
- Department of Biology, Indian Institute of Science Education and Research, Pune, India
| | - Libi Anandi
- Department of Biology, Indian Institute of Science Education and Research, Pune, India
| | - K A Ashiq
- Department of Biology, Indian Institute of Science Education and Research, Pune, India
| | - K Abhijith
- Department of Biology, Indian Institute of Science Education and Research, Pune, India
| | - Rintu Umesh
- Department of Biology, Indian Institute of Science Education and Research, Pune, India
| | - Mayurika Lahiri
- Department of Biology, Indian Institute of Science Education and Research, Pune, India
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16
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Wan X, Hou J, Liu S, Zhang Y, Li W, Zhang Y, Ding Y. Estrogen Receptor α Mediates Doxorubicin Sensitivity in Breast Cancer Cells by Regulating E-Cadherin. Front Cell Dev Biol 2021; 9:583572. [PMID: 33614637 PMCID: PMC7889969 DOI: 10.3389/fcell.2021.583572] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 01/11/2021] [Indexed: 12/31/2022] Open
Abstract
Anthracyclines resistance is commonly seen in patients with estrogen receptor α (ERα) positive breast cancer. Epithelial-mesenchymal transition (EMT), which is characterized with the loss of epithelial cell polarity, cell adhesion and acquisition of new invasive property, is considered as one of the mechanisms of chemotherapy-induced drug resistance. In order to identify factors that associated with doxorubicin resistance, we performed in vitro and in vivo experiments using human and mouse breast cancer cell lines with different ERα status. Cell survival experiments revealed that ERα-positive cells (MCF-7 and MCF-7/ADR cell lines), were less sensitive to doxorubicin than ERα-negative (MDA-MB-231, MDA-MB-468) cells, and mouse mammary carcinoma cells (4T-1). The expression of E-cadherin reduced in low-invasive ERα-positive MCF-7 cells after treatment with doxorubicin, indicating epithelial mesenchymal transition. In contrast, the expression of E-cadherin was upregulated in high-invasive ERα-negative cells, showing mesenchymal-epithelial transition (MET). Moreover, it was found that the growth inhibition of 4T-1 cells by doxorubicin was positively correlated with the expression of E-cadherin. In a mouse breast cancer xenograft model, E-cadherin was overexpressed in the primary tumor tissues of the doxorubicin-treated mice. In ERα-positive MCF-7 cells, doxorubicin treatment upregulated the expression of EMT-related transcription factors Snail and Twist, that regulate the expression of E-cadherin. Following overexpression of ERα in ERα-negative cells (MDA-MB-231 and MDA-MB-468), doxorubicin enhanced the upregulation of Snail and Twist, decreased expression of E-cadherin, and decreased the sensitivity of cells to doxorubicin. In contrast, inhibition of ERα activity increased the sensitivity to doxorubicin in ERα-positive MCF-7 cells. These data suggest that the regulation of Snail and/or Twist varies depends on different ERα status. Therefore, doxorubicin combined with anti-estrogen receptor α therapy could improve the treatment efficacy of doxorubicin in ERα-positive breast cancer.
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Affiliation(s)
- Xiaoqing Wan
- Laboratory of Molecular Oncology, Weifang Medical University, Weifang, China.,Department of Pathophysiology, Weifang Medical University, Weifang, China
| | - Jiaxin Hou
- School of Physical Education & Sports Science, Qufu Normal University, Qufu, China
| | - Shurong Liu
- Laboratory of Molecular Oncology, Weifang Medical University, Weifang, China
| | - Yanli Zhang
- Department of Pathophysiology, Weifang Medical University, Weifang, China
| | - Wenqing Li
- Laboratory of Molecular Oncology, Weifang Medical University, Weifang, China
| | - Yanru Zhang
- Laboratory of Molecular Oncology, Weifang Medical University, Weifang, China
| | - Yi Ding
- Department of Pathophysiology, Weifang Medical University, Weifang, China.,Key Laboratory of Applied Pharmacology, Weifang Medical University, Weifang, China
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17
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Li J, Wang K, Huang B, Li R, Wang X, Zhang H, Tang H, Chen X. The receptor for advanced glycation end products mediates dysfunction of airway epithelial barrier in a lipopolysaccharides-induced murine acute lung injury model. Int Immunopharmacol 2021; 93:107419. [PMID: 33548580 DOI: 10.1016/j.intimp.2021.107419] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 01/10/2021] [Accepted: 01/18/2021] [Indexed: 11/17/2022]
Abstract
BACKGROUND Airway epithelial cells (AECs) act as the first barrier protecting against invasion of environment agents and maintain integrity of lung structure and function. Dysfunction of airway epithelial barrier has been shown to be involved in ALI/ARDS pathogenesis. Yet, the exact mechanism is still obscure. Our study evaluated whether the receptor for advanced glycation end products (RAGE) mediates impaired airway epithelial barrier in LPS-induced murine ALI model. METHODS Male BALB/c mice were subjected to intratracheal instillation of LPS to generate an ALI model. Inhibitors of RAGE, FPS-ZM1 and Azeliragon were respectively given to the mice through intraperitoneal injection. Bronchoalveolar lavage fluid (BALF) and lung tissues were collected for further analysis. RESULTS LPS exposure led to markedly increased expression of RAGE and its ligands HMGB1, HSP70, S100b. Treatment of FPS-ZM1 or Azeliragon not only effectively descended the expression of RAGE and its ligands but also attenuated LPS-induced neutrophil-predominant airway inflammation and injury, decreased levels of IL-6, IL-1β and TNF-α in BALF, alleviated increased alveolar-capillary permeability and pulmonary edema. LPS stimulation significantly impaired the integrity of airway epithelium, paralleled with dislocation of adheren junction (AJ) protein E-cadherin at cell-cell contacts and down-expression of both AJ and tight junction (TJ) proteins Claudin-2 and occludin, all of which were dramatically rescued by RAGE inhibition. CONCLUSION RAGE signaling mediates airway epithelial barrier dysfunction in a LPS-induced ALI murine model.
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Affiliation(s)
- Jiahui Li
- Department of Pulmonary and Critical Care Medicine, Zhujiang Hospital, Southern Medical University, 253 Gongye Middle Avenue, Haizhu District, Guangzhou, Guangdong 510280, China
| | - Kai Wang
- Department of Critical Care Medicine, Zhujiang Hospital, Southern Medical University, 253 Gongye Middle Avenue, Haizhu District, Guangzhou, Guangdong 510280, China
| | - Bo Huang
- Department of Critical Care Medicine, Zhujiang Hospital, Southern Medical University, 253 Gongye Middle Avenue, Haizhu District, Guangzhou, Guangdong 510280, China
| | - Rui Li
- Department of Pulmonary and Critical Care Medicine, Zhujiang Hospital, Southern Medical University, 253 Gongye Middle Avenue, Haizhu District, Guangzhou, Guangdong 510280, China
| | - Xilong Wang
- Department of Pulmonary and Critical Care Medicine, Zhujiang Hospital, Southern Medical University, 253 Gongye Middle Avenue, Haizhu District, Guangzhou, Guangdong 510280, China
| | - Hailing Zhang
- Department of Pulmonary and Critical Care Medicine, Zhujiang Hospital, Southern Medical University, 253 Gongye Middle Avenue, Haizhu District, Guangzhou, Guangdong 510280, China
| | - Haixiong Tang
- Department of Critical Care Medicine, Zhujiang Hospital, Southern Medical University, 253 Gongye Middle Avenue, Haizhu District, Guangzhou, Guangdong 510280, China.
| | - Xin Chen
- Department of Pulmonary and Critical Care Medicine, Zhujiang Hospital, Southern Medical University, 253 Gongye Middle Avenue, Haizhu District, Guangzhou, Guangdong 510280, China.
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18
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Epithelial dysfunction in chronic respiratory diseases, a shared endotype? Curr Opin Pulm Med 2021; 26:20-26. [PMID: 31688241 DOI: 10.1097/mcp.0000000000000638] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
PURPOSE OF REVIEW Epithelial barrier defects are being appreciated in various inflammatory disorders; however, causal underlying mechanisms are lacking. In this review, we describe the disruption of the airway epithelium with regard to upper and lower airway diseases, the role of epigenetic alterations underlying this process, and potential novel ways of interfering with dysfunctional epithelial barriers as a novel therapeutic approach. RECENT FINDINGS A defective epithelial barrier, impaired innate defence mechanisms or hampered epithelial cell renewal are found in upper and lower airway diseases. Barrier dysfunction might facilitate the entrance of foreign substances, initiating and facilitating the onset of disease. Latest data provided novel insights for possible involvement of epigenetic alterations induced by inflammation or other unknown mechanisms as a potential mechanism responsible for epithelial defects. Additionally, these mechanisms might precede disease development, and represent a novel therapeutic approach for restoring epithelial defects. SUMMARY A better understanding of the role of epigenetics in driving and maintaining epithelial defects in various inflammatory diseases, using state-of-the-art biology tools will be crucial in designing novel therapies to protect or reconstitute a defective airway epithelial barrier.
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19
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Mondal P, Meeran SM. Long non-coding RNAs in breast cancer metastasis. Noncoding RNA Res 2020; 5:208-218. [PMID: 33294746 PMCID: PMC7689374 DOI: 10.1016/j.ncrna.2020.11.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 11/10/2020] [Accepted: 11/10/2020] [Indexed: 12/17/2022] Open
Abstract
Breast cancer is the leading cause of cancer-related death among women. Recurrence of primary tumor and metastasis to distant body parts are major causes of breast cancer-associated mortality. The 5-year survival rate for women with metastatic breast cancer is only 25-30%. Breast cancer metastasis is a series of processes involved with EMT, invasion, loss of cell to cell adhesion, alteration in cell phenotype, extravasation, microenvironment of the tumor, and colonization to the secondary sites. Epigenetic modification is involved in the transformation of the distant stromal cell into a secondary tumor. LncRNAs, are one the key epigenetic modifiers, are the largest endogenous non-coding RNAs with approximate base-pair lengths from 200 nt to 100 kb. LncRNA plays a crucial role in breast cancer metastasis by sponging miRNA, by degrading or silencing specific mRNA, or else by targeting the enzymes and microprocessor subunits involved in the biogenesis of miRNA. LncRNA also alters the expression of several genes involved in breast cancer metastasis and modulating different cell signaling pathways. The goal of this review is to provide a better understanding of the role of lncRNA in the regulation of breast cancer metastasis. We also summarized some of the key lncRNAs that regulate the genes and signaling pathways involved in breast cancer invasion and metastasis.
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Affiliation(s)
- Priya Mondal
- Laboratory of Cancer Epigenetics, Department of Biochemistry, CSIR-Central Food Technological Research Institute, Mysore, 570020, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Syed Musthapa Meeran
- Laboratory of Cancer Epigenetics, Department of Biochemistry, CSIR-Central Food Technological Research Institute, Mysore, 570020, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
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20
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Zhai X, Wang W, Ma Y, Zeng Y, Dou D, Fan H, Song J, Yu X, Xin D, Du G, Jiang Z, Zhang H, Zhang X, Jin B. Serum KIAA1199 is an advanced-stage prognostic biomarker and metastatic oncogene in cholangiocarcinoma. Aging (Albany NY) 2020; 12:23761-23777. [PMID: 33197891 PMCID: PMC7762501 DOI: 10.18632/aging.103964] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2019] [Accepted: 07/20/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND Cell proliferation and migration are the determinants of malignant tumor progression, and a better understanding of related genes will lead to the identification of new targets aimed at preventing the spread of cancer. Some studies have shown that KIAA1199 (CEMIP) is a transmembrane protein expressed in many types of noncancerous cells and cancer cells. However, the potential role of KIAA1199 in the progression of cholangiocarcinoma (CCA) remains unclear. RESULTS Analysis of cancer-related databases showed that KIAA1199 is overexpressed in CCA. ELISA, immunohistochemistry, Western blotting and qPCR indicated high expression levels of KIAA1199 in serum, CCA tissues and CCA cell lines. In the serum (n = 41) and large sample validation (n = 177) cohorts, higher KIAA1199 expression was associated with shorter overall survival and disease-free survival times. At the cellular level, KIAA1199 overexpression (OE) promoted CCA growth and metastasis. Subcutaneous tumor xenograft experiments showed that KIAA1199 enhances CCA cell proliferation. Additionally, the expression levels of components in the EMT-related TGF-β pathway changed significantly after KIAA1199 upregulation and silencing. CONCLUSION KIAA1199 is a promising new diagnostic molecule and therapeutic target in CCA. The serum KIAA1199 level can be used as a promising clinical tool for predicting the overall postoperative outcomes of patients with CCA. METHODS CCA-related KIAA1199 data were downloaded from the Gene Expression Omnibus (GEO) and The Cancer Genome Atlas (TCGA) databases. To assess the prognostic impact of KIAA1199, an enzyme-linked immunosorbent assay (ELISA) was used to measure the serum level of KIAA1199 in 41 patients who underwent surgical resection. Immunohistochemical staining, Western blotting and qPCR were used to verify and retrospectively review the expression levels of KIAA1199 in cancer tissue specimens from 177 CCA patients. The effect of KIAA1199 on CCA was evaluated by cell-based functional assays and subcutaneous tumor xenograft experiments. The expression levels of proteins associated with epithelial-mesenchymal transition (EMT) and activation of relevant signaling pathways were measured via Western blotting.
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Affiliation(s)
- Xiangyu Zhai
- Department of Surgery, School of Medicine, Cheeloo College of Medicine, Shandong University, Jinan, China.,Department of General Surgery, Qilu Hospital of Shandong University, Jinan, China
| | - Wei Wang
- Department of Surgery, School of Medicine, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yunlong Ma
- Department of Surgery, School of Medicine, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yijia Zeng
- Radiology Department, Qilu Hospital of Shandong University, Jinan, China
| | - Dandan Dou
- School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Haoning Fan
- College of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Jianping Song
- Department of Surgery, School of Medicine, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Xin Yu
- School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Danqing Xin
- School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Gang Du
- Department of Surgery, School of Medicine, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Zhengchen Jiang
- Department of Surgery, School of Medicine, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Hao Zhang
- Department of Surgery, School of Medicine, Cheeloo College of Medicine, Shandong University, Jinan, China
| | | | - Bin Jin
- Department of Surgery, School of Medicine, Cheeloo College of Medicine, Shandong University, Jinan, China.,Department of General Surgery, Qilu Hospital of Shandong University, Jinan, China
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21
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Vargas JE, Puga R, Lenz G, Trindade C, Filippi-Chiela E. Cellular Mechanisms Triggered by the Cotreatment of Resveratrol and Doxorubicin in Breast Cancer: A Translational In Vitro-In Silico Model. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:5432651. [PMID: 33204396 PMCID: PMC7654215 DOI: 10.1155/2020/5432651] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 08/22/2020] [Accepted: 10/06/2020] [Indexed: 12/14/2022]
Abstract
Doxorubicin (Doxo) is the most effective chemotherapeutic agent for the treatment of breast cancer. However, resistance to Doxo is common. Adjuvant compounds capable of modulating mechanisms involved in Doxo resistance may potentiate the effectiveness of the drug. Resveratrol (Rsv) has been tested as an adjuvant in mammary malignancies. However, the cellular and molecular mechanisms underlying the effects of cotreatment with Doxo and Rsv in breast cancer are poorly understood. Here, we combined in vitro and in silico analysis to characterize these mechanisms. In vitro, we employed a clinically relevant experimental design consisting of acute (24 h) treatment followed by 15 days of analysis. Acute Rsv potentiated the long-lasting effect of Doxo through the induction of apoptosis and senescence. Cells that survived to the cotreatment triggered high levels of autophagy. Autophagy inhibition during its peak of activation but not concomitant with Doxo+Rsv increased the long-term toxicity of the cotreatment. To uncover key proteins potentially associated with in vitro effects, an in silico multistep strategy was implemented. Chemical-protein networks were predicted based on constitutive gene expression of MCF7 cells and interatomic data from breast cancer. Topological analysis, KM survival analysis, and a quantitative model based on the connectivity between apoptosis, senescence, and autophagy were performed. We found seven putative genes predicted to be modulated by Rsv in the context of Doxo treatment: CCND1, CDH1, ESR1, HSP90AA1, MAPK3, PTPN11, and RPS6KB1. Six out of these seven genes have been experimentally proven to be modulated by Rsv in cancer cells, with 4 of the 6 genes in MCF7 cells. In conclusion, acute Rsv potentiated the long-term toxicity of Doxo in breast cancer potentially through the modulation of genes and mechanisms involved in Doxo resistance. Rational autophagy inhibition potentiated the effects of Rsv+Doxo, a strategy that should be further tested in animal models.
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Affiliation(s)
- José Eduardo Vargas
- Instituto de Ciências Biológicas, Universidade de Passo Fundo, Brazil
- Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Renato Puga
- Hospital Israelita Albert Einstein, São Paulo, Brazil
| | - Guido Lenz
- Centro de Biotecnologia e Departamento de Biofísica, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Cristiano Trindade
- Facultad de Ciencias Básicas y Biomédicas, Universidad Simón Bolívar, Barranquilla, Colombia
| | - Eduardo Filippi-Chiela
- Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
- Departamento de Ciências Morfológicas, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
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Functional variations of NFKB1 and NFKB1A in inflammatory disorders and their implication for therapeutic approaches. ASIAN BIOMED 2020. [DOI: 10.1515/abm-2020-0008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Abstract
Nuclear factor κ-light-chain-enhancer of activated B cells (NF-κB) is a sophisticated transcription factor that is particularly important in the inflammatory response, but it regulates more than 400 individual and dependent genes for parts of the apoptotic, angiogenic, and proliferative, differentiative, and cell adhesion pathways. NF-κB function is directly inhibited by the binding of inhibitor of κB (IκB), and the imbalance between NF-κB and IκB has been linked to the development and progression of cancer and a variety of inflammatory disorders. These observations might broaden the horizon of current knowledge, particularly on the pathogenesis of inflammatory diseases considering the roles of NF-κB and IκB. In this context, we focus this narrative review on a comparative discussion of our findings with other literature regarding variations of NFKB1 and NFKB1A and their association with susceptibility to widespread inflammatory disorders (such as atherosclerosis, morbid obesity, Behçet syndrome, Graves disease, Hashimoto disease) and common cancers (such as gliomas).
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Villarroel A, Del Valle-Pérez B, Fuertes G, Curto J, Ontiveros N, Garcia de Herreros A, Duñach M. Src and Fyn define a new signaling cascade activated by canonical and non-canonical Wnt ligands and required for gene transcription and cell invasion. Cell Mol Life Sci 2020; 77:919-935. [PMID: 31312879 PMCID: PMC11104847 DOI: 10.1007/s00018-019-03221-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 07/01/2019] [Accepted: 07/05/2019] [Indexed: 01/12/2023]
Abstract
Wnt ligands signal through canonical or non-canonical signaling pathways. Although both routes share common elements, such as the Fz2 receptor, they differ in the co-receptor and in many of the final responses; for instance, whereas canonical Wnts increase β-catenin stability, non-canonical ligands downregulate it. However, both types of ligands stimulate tumor cell invasion. We show here that both the canonical Wnt3a and the non-canonical Wnt5a stimulate Fz2 tyrosine phosphorylation, Fyn binding to Fz2, Fyn activation and Fyn-dependent Stat3 phosphorylation. Wnt3a and Wnt5a require Src for Fz2 tyrosine phosphorylation; Src binds to canonical and non-canonical co-receptors (LRP5/6 and Ror2, respectively) and is activated by Wnt3a and Wnt5a. This Fz2/Fyn/Stat3 branch is incompatible with the classical Fz2/Dvl2 pathway as shown by experiments of over-expression or depletion. Fyn is necessary for transcription of genes associated with invasiveness, such as Snail1, and for activation of cell invasion by both Wnt ligands. Our results extend the knowledge about canonical Wnt pathways, demonstrating additional roles for Fyn in this pathway and describing how this protein kinase is activated by both canonical and non-canonical Wnts.
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Affiliation(s)
- Aida Villarroel
- Departament de Bioquímica i Biologia Molecular, CEB, Facultat de Medicina, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
| | - Beatriz Del Valle-Pérez
- Departament de Bioquímica i Biologia Molecular, CEB, Facultat de Medicina, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
| | - Guillem Fuertes
- Departament de Bioquímica i Biologia Molecular, CEB, Facultat de Medicina, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
| | - Josué Curto
- Departament de Bioquímica i Biologia Molecular, CEB, Facultat de Medicina, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
| | - Neus Ontiveros
- Departament de Bioquímica i Biologia Molecular, CEB, Facultat de Medicina, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
| | - Antonio Garcia de Herreros
- Programa de Recerca en Càncer, Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), Unidad Asociada CSIC, Parc de Recerca Biomèdica de Barcelona, c/Doctor Aiguader 88, 08003, Barcelona, Spain.
- Departament de Ciències, Experimentals i de la Salut, Universitat Pompeu Fabra, 08003, Barcelona, Spain.
| | - Mireia Duñach
- Departament de Bioquímica i Biologia Molecular, CEB, Facultat de Medicina, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain.
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Ye C, Huang C, Zou M, Hu Y, Luo L, Wei Y, Wan X, Zhao H, Li W, Cai S, Dong H. The role of secreted Hsp90α in HDM-induced asthmatic airway epithelial barrier dysfunction. BMC Pulm Med 2019; 19:218. [PMID: 31747880 PMCID: PMC6868813 DOI: 10.1186/s12890-019-0938-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Accepted: 09/12/2019] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND The dysfunction of airway epithelial barrier is closely related to the pathogenesis of asthma. Secreted Hsp90α participates in inflammation and Hsp90 inhibitor protects endothelial dysfunction. In the current study, we aimed to explore the role of secreted Hsp90α in asthmatic airway epithelial barrier function. METHODS Male BALB/c mice were sensitized and challenged with HDM to generate asthma model. The 16HBE and Hsp90α-knockdown cells were cultured and treated according to the experiment requirements. Transepithelial Electric Resistance (TEER) and permeability of epithelial layer in vitro, distribution and expression of junction proteins both in vivo and in vitro were used to evaluate the epithelial barrier function. Western Blot was used to evaluate the expression of junction proteins and phosphorylated AKT in cells and lung tissues while ELISA were used to evaluate the Hsp90α expression and cytokines release in the lung homogenate. RESULTS HDM resulted in a dysfunction of airway epithelial barrier both in vivo and in vitro, paralleled with the increased expression and release of Hsp90α. All of which were rescued in Hsp90α-knockdown cells or co-administration of 1G6-D7. Furthermore, either 1G6-D7 or PI3K inhibitor LY294002 suppressed the significant phosphorylation of AKT, which caused by secreted and recombinant Hsp90α, resulting in the restoration of epithelial barrier function. CONCLUSIONS Secreted Hsp90α medicates HDM-induced asthmatic airway epithelial barrier dysfunction via PI3K/AKT pathway, indicating that anti-secreted Hsp90α therapy might be a potential treatment to asthma in future.
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Affiliation(s)
- Cuiping Ye
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nan Fang Hospital, Southern Medical University, Guangzhou, 510515, People's Republic of China
| | - Chaowen Huang
- Department of Respiratory Medicine, Jiangmen Central Hospital, Jiangmen, Guangdong, 529030, People's Republic of China
| | - Mengchen Zou
- Department of Endocrinology and Metabolism, Nan Fang Hospital, Southern Medical University, Guangzhou, 510515, People's Republic of China
| | - Yahui Hu
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nan Fang Hospital, Southern Medical University, Guangzhou, 510515, People's Republic of China
| | - Lishan Luo
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nan Fang Hospital, Southern Medical University, Guangzhou, 510515, People's Republic of China
| | - Yilan Wei
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nan Fang Hospital, Southern Medical University, Guangzhou, 510515, People's Republic of China
| | - Xuan Wan
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nan Fang Hospital, Southern Medical University, Guangzhou, 510515, People's Republic of China
| | - Haijin Zhao
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nan Fang Hospital, Southern Medical University, Guangzhou, 510515, People's Republic of China
| | - Wei Li
- Department of Dermatology and the Norris Comprehensive Cancer Centre, University of Southern California Keck, Medical Centre, Los Angeles, CA, 90033, USA
| | - Shaoxi Cai
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nan Fang Hospital, Southern Medical University, Guangzhou, 510515, People's Republic of China.
| | - Hangming Dong
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nan Fang Hospital, Southern Medical University, Guangzhou, 510515, People's Republic of China.
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Sakunrangsit N, Ketchart W. Plumbagin inhibits cancer stem-like cells, angiogenesis and suppresses cell proliferation and invasion by targeting Wnt/β-catenin pathway in endocrine resistant breast cancer. Pharmacol Res 2019; 150:104517. [PMID: 31693936 DOI: 10.1016/j.phrs.2019.104517] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 10/02/2019] [Accepted: 10/29/2019] [Indexed: 12/13/2022]
Abstract
Fifty percent of advanced stage ER-positive breast cancer patients develop endocrine resistance. Aberrant activation of Wnt/β-catenin is associated with stem-like phenotypes and epithelial-mesenchymal transition (EMT) process which confers resistance to endocrine therapy. Cancer stem-like cells (CSLCs) can be a vital source of proangiogenic factors including fibroblast growth factor 2 (FGF2) which drives angiogenesis and leads to tumor growth and metastasis. Therefore, targeting Wnt and FGF2 may provide effective treatment for endocrine resistant breast cancer. Our previous in vitro study reported that plumbagin (PLB) was a potent anticancer agent and was able to inhibit EMT in endocrine-resistant cells. This study aimed to further investigate the inhibitory effects of PLB on cancer stem-like phenotypes, tumorigenicity and angiogenesis. The results demonstrated Wnt/β-catenin signaling was activated and was able to form mammospheres with increased cancer stem cell markers (ALDH1, NANOG, and OCT4) in endocrine-resistant cells. PLB significantly inhibited colony-forming, mammosphere formation and decreased cancer stem cell markers. The inhibitory effects of PLB on cell proliferation and invasion were mediated by Wnt signaling pathway. PLB also significantly reduced Wnt responsive genes and β-catenin. Moreover, PLB treatment at doses of 2 and 4 mg/kg/day inhibited tumor growth, angiogenesis and metastasis without any adverse effects on body weight and blood coagulation in orthotopic xenograft nude mice. In conclusion, PLB exerted anti-cancer activity and eliminated stem-like properties by attenuating Wnt/β-catenin signaling and FGF2 expression. These findings suggest that PLB could be a promising agent to treat endocrine resistant breast cancer.
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Affiliation(s)
- Nithidol Sakunrangsit
- Overcoming Cancer Drug Resistance Research Unit, Department of Pharmacology, Faculty of Medicine, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Wannarasmi Ketchart
- Overcoming Cancer Drug Resistance Research Unit, Department of Pharmacology, Faculty of Medicine, Chulalongkorn University, Bangkok, 10330, Thailand.
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Freihen V, Rönsch K, Mastroianni J, Frey P, Rose K, Boerries M, Zeiser R, Busch H, Hecht A. SNAIL1 employs β‐Catenin‐LEF1 complexes to control colorectal cancer cell invasion and proliferation. Int J Cancer 2019; 146:2229-2242. [DOI: 10.1002/ijc.32644] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 07/15/2019] [Accepted: 08/06/2019] [Indexed: 12/20/2022]
Affiliation(s)
- Vivien Freihen
- Institute of Molecular Medicine and Cell Research, Faculty of MedicineUniversity of Freiburg Freiburg Germany
- Faculty of BiologyUniversity of Freiburg Freiburg Germany
| | - Kerstin Rönsch
- Institute of Molecular Medicine and Cell Research, Faculty of MedicineUniversity of Freiburg Freiburg Germany
| | - Justin Mastroianni
- Faculty of BiologyUniversity of Freiburg Freiburg Germany
- Department of Hematology, Oncology and Stem Cell TransplantationMedical Center ‐ University of Freiburg, Faculty of Medicine, University of Freiburg Freiburg Germany
| | - Patrick Frey
- Institute of Molecular Medicine and Cell Research, Faculty of MedicineUniversity of Freiburg Freiburg Germany
- Faculty of BiologyUniversity of Freiburg Freiburg Germany
- Spemann Graduate School of Biology and Medicine (SGBM)University of Freiburg Freiburg Germany
| | - Katja Rose
- Institute of Molecular Medicine and Cell Research, Faculty of MedicineUniversity of Freiburg Freiburg Germany
| | - Melanie Boerries
- Institute of Molecular Medicine and Cell Research, Faculty of MedicineUniversity of Freiburg Freiburg Germany
- German Cancer Consortium (DKTK) Freiburg Germany
- German Cancer Research Center (DKFZ) Heidelberg Germany
- Institute of Medical Bioinformatics and System Medicine, University Medical Center FreiburgFaculty of Medicine, University of Freiburg Freiburg Germany
| | - Robert Zeiser
- Department of Hematology, Oncology and Stem Cell TransplantationMedical Center ‐ University of Freiburg, Faculty of Medicine, University of Freiburg Freiburg Germany
- BIOSS Centre for Biological Signalling StudiesUniversity of Freiburg Freiburg Germany
| | - Hauke Busch
- Institute of Experimental Dermatology and Institute of CardiogeneticsUniversity of Lübeck Lübeck Germany
| | - Andreas Hecht
- Institute of Molecular Medicine and Cell Research, Faculty of MedicineUniversity of Freiburg Freiburg Germany
- Faculty of BiologyUniversity of Freiburg Freiburg Germany
- BIOSS Centre for Biological Signalling StudiesUniversity of Freiburg Freiburg Germany
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Yang J, Xiong Y, Zhou L, Huang Y, Chen W, Wang B. Soluble E-cadherin is associated with oxidative stress in patients with chronic HBV infection. J Med Virol 2019; 92:34-44. [PMID: 31429942 DOI: 10.1002/jmv.25571] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Accepted: 08/11/2019] [Indexed: 12/11/2022]
Abstract
Mounting evidence indicates that serum soluble E-cadherin (sE-cadherin) serves as an important player in various physiological and pathological processes. However, the crosstalk between serum sE-cadherin and oxidative stress in chronic hepatitis B (CHB) remains to be illustrated. The main purpose of this study is to explore the molecular mechanisms underlying the function of sE-cadherin in CHB virus infection. Levels of serum sE-cadherin, total antioxidant capacity (TAC), glutathione (GSH), superoxide dismutase (SOD), total oxidant activity (TOA), NADPH oxidase 2 (NOX2), and malondialdehyde (MDA), from 51 patients with hepatitis B envelope antigen (HBeAg)-negative CHB, 54 patients with HBeAg-positive CHB, and 109 healthy individuals were detected by enzyme-linked immunosorbent assay. In our study, patients with CHB showed significantly higher serum sE-cadherin levels than healthy individuals (P < .01). Furthermore, we also found that the serum sE-cadherin levels were significantly negatively correlated with TAC, antioxidant enzymes (GSH and SOD) in patients with CHB, and that serum sE-cadherin concentrations were significantly positively correlated with liver enzyme markers (alanine transaminase and aspartate aminotransferase) and oxidative markers (TOA, NOX2, and MDA) in patients with CHB. Therefore, serum sE-cadherin may act as a new candidate biomarker for reflecting inflammation and oxidative stress status in the development and progression of hepatitis B virus infection.
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Affiliation(s)
- Jun Yang
- Department of Laboratory Medicine, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Yuan Xiong
- Department of Laboratory Medicine, Chongqing Traditional Chinese Medicine Hospital, Chongqing, China
| | - Lijing Zhou
- Department of Laboratory Medicine, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Yong Huang
- Department of Laboratory Medicine, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Weixian Chen
- Department of Laboratory Medicine, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Bo Wang
- Department of Laboratory Medicine, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
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28
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Kang BH, Shu CW, Chao JK, Lee CH, Fu TY, Liou HH, Ger LP, Liu PF. HSPD1 repressed E-cadherin expression to promote cell invasion and migration for poor prognosis in oral squamous cell carcinoma. Sci Rep 2019; 9:8932. [PMID: 31222140 PMCID: PMC6586902 DOI: 10.1038/s41598-019-45489-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Accepted: 06/04/2019] [Indexed: 12/17/2022] Open
Abstract
Buccal mucosa squamous cell carcinoma (BMSCC) is one of major subsites of oral cancer and is associated with a high rate of metastasis and poor prognosis. Heat shock proteins (HSPs) act as potential prognostic biomarkers in many cancer types. However, the role of HSPD1 in oral cancer, especially in BMSCC, is still unknown. Through data analysis with The Cancer Genome Atlas (TCGA), we found the association of HSPD1 gene expression with tumorigenesis and poor prognosis in oral cancer patients. Our cohort study showed that higher HSPD1 protein level was associated with tumorigenesis and poor prognosis in BMSCC patients with lymph node invasion, suggesting that HSPD1 may be involved in tumor metastasis. Moreover, knockdown of HSPD1 induced E-cadherin expression and decreased the migration and invasion of BMSCC cells. In contrast, ectopic expression of HSPD1 diminished E-cadherin expression and promoted the migration/invasion of BMSCC cells. Further, HSPD1 regulated RelA activation to repress E-cadherin expression, enhancing the migration and invasion of BMSCC cells. Furthermore, HSPD1 protein level was inversely correlated with E-cadherin protein level in tumor tissues and co-expression of high HSPD1/low E-cadherin showed a significant association with poor prognosis in BMSCC patients. Taken together, HSPD1 might repress E-cadherin expression and promote metastatic characters of BMSCC cells for poor prognosis of BMSCC patients.
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Affiliation(s)
- Bor-Hwang Kang
- Department of Otorhinolaryngology-Head and Neck Surgery, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan.,Graduate Institute of Aerospace and Undersea Medicine, National Defense Medical Center, Taipei, Taiwan.,Department of Pharmacy, Tajen University, Pingtung, Taiwan
| | - Chih-Wen Shu
- School of Medicine for International Students, I-Shou University, Kaohsiung, Taiwan.,Institute of Biomedical Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Jian-Kang Chao
- Department of Psychiatry, Pingtung Branch, Kaohsiung Veterans General Hospital, Pingtung, Taiwan
| | - Cheng-Hsin Lee
- Department of Medical Education and Research, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - Ting-Ying Fu
- Department of Pathology and Laboratory Medicine, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - Huei-Han Liou
- Department of Medical Education and Research, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - Luo-Ping Ger
- Institute of Biomedical Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan.,Department of Medical Education and Research, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - Pei-Feng Liu
- Department of Medical Education and Research, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan. .,Department of Oral Hygiene, Shu-Zen Junior College of Medicine and Management, Kaohsiung, Taiwan.
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Meng FT, Huang M, Shao F, Huang Q. Upregulated FFAR4 correlates with the epithelial-mesenchymal transition and an unfavorable prognosis in human cholangiocarcinoma. Cancer Biomark 2018; 23:353-361. [PMID: 30248044 DOI: 10.3233/cbm-181358] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Fu-Tao Meng
- Department of General Surgery, Affiliated Anhui Provincial Hospital, Hefei, Anhui, China
- Anhui Province Key Laboratory of Hepatopancreatobiliary Surgery, Hefei, Anhui, China
- Department of General Surgery, Affiliated Anhui Provincial Hospital, Hefei, Anhui, China
| | - Mei Huang
- Department of General Surgery, Affiliated Anhui Provincial Hospital, Hefei, Anhui, China
- Anhui Province Key Laboratory of Hepatopancreatobiliary Surgery, Hefei, Anhui, China
- Department of General Surgery, Affiliated Anhui Provincial Hospital, Hefei, Anhui, China
| | - Feng Shao
- Department of General Surgery, Affiliated Anhui Provincial Hospital, Hefei, Anhui, China
- Anhui Province Key Laboratory of Hepatopancreatobiliary Surgery, Hefei, Anhui, China
| | - Qiang Huang
- Department of General Surgery, Affiliated Anhui Provincial Hospital, Hefei, Anhui, China
- Anhui Province Key Laboratory of Hepatopancreatobiliary Surgery, Hefei, Anhui, China
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30
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Matsui S, Zhou L, Nakayama Y, Mezawa M, Kato A, Suzuki N, Tanabe N, Nakayama T, Suzuki Y, Kamio N, Takai H, Ogata Y. MiR-200b attenuates IL-6 production through IKKβ and ZEB1 in human gingival fibroblasts. Inflamm Res 2018; 67:965-973. [PMID: 30306207 PMCID: PMC6223877 DOI: 10.1007/s00011-018-1192-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 09/28/2018] [Accepted: 10/03/2018] [Indexed: 12/18/2022] Open
Abstract
OBJECTIVE MicroRNAs (miRNAs) play important roles in biological processes such as cell differentiation, development, infection, immune response, inflammation and tumorigenesis. We previously reported that the expression of miR-200b was significantly increased in inflamed gingiva compared with non-inflamed gingiva. To elucidate the roles of miR-200b in the inflamed gingiva, we have analyzed the effects of miR-200b on the expression of IL-6 in human gingival fibroblasts (HGF). MATERIALS AND METHODS Total RNA and protein were extracted from HGF after stimulation by interleukin-1β (IL-1β; 1 ng/ml) or tumor necrosis factor-α (TNF-α; 10 ng/ml) and transfected with miR-200b expression plasmid or miR-200b inhibitor. IL-6, IL-1β, inhibitor of nuclear factor kappa-B kinaseβ (IKKβ), Zinc-finger E-box-binding homeobox 1 (ZEB1) and E-cadherin mRNA and protein levels were analyzed by real-time PCR and Western blot. RESULTS IL-1β and TNF-α increased IL-6 mRNA and protein levels, and they were significantly suppressed by miR-200b overexpression, whereas they were further increased by miR-200b inhibitor in HGF. IKKβ and ZEB1 which are target genes of miR-200b negatively regulate E-cadherin. MiR-200b suppressed the expression of IKKβ and ZEB1 and increased E-cadherin mRNA and protein levels in HGF. CONCLUSIONS These results suggest that miR-200b attenuates inflammatory response via IKKβ and ZEB1 in periodontal tissue.
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Affiliation(s)
- Sari Matsui
- Department of Periodontology, Nihon University School of Dentistry at Matsudo, Matsudo, Chiba, 271-8587, Japan
| | - Liming Zhou
- Department of Periodontology, Nihon University School of Dentistry at Matsudo, Matsudo, Chiba, 271-8587, Japan
- Stomatological Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Yohei Nakayama
- Department of Periodontology, Nihon University School of Dentistry at Matsudo, Matsudo, Chiba, 271-8587, Japan
- Research Institute of Oral Science, Nihon University School of Dentistry at Matsudo, Matsudo, Chiba, 271-8587, Japan
| | - Masaru Mezawa
- Department of Periodontology, Nihon University School of Dentistry at Matsudo, Matsudo, Chiba, 271-8587, Japan
- Research Institute of Oral Science, Nihon University School of Dentistry at Matsudo, Matsudo, Chiba, 271-8587, Japan
| | - Ayako Kato
- Department of Periodontology, Nihon University School of Dentistry at Matsudo, Matsudo, Chiba, 271-8587, Japan
- Research Institute of Oral Science, Nihon University School of Dentistry at Matsudo, Matsudo, Chiba, 271-8587, Japan
| | - Naoto Suzuki
- Department of Biochemistry, Nihon University School of Dentistry, Chiyoda-ku, Tokyo, 101-8310, Japan
| | - Natsuko Tanabe
- Department of Biochemistry, Nihon University School of Dentistry, Chiyoda-ku, Tokyo, 101-8310, Japan
| | - Tomohiro Nakayama
- Laboratory of Veterinary Radiology, Nihon University College of Bioresource Sciences, Fujisawa, Kanagawa, 252-0880, Japan
| | - Yuki Suzuki
- Department of Preventive Veterinary Medicine and Animal Health, Nihon University College of Bioresource Sciences, Fujisawa, Kanagawa, 252-0880, Japan
| | - Noriaki Kamio
- Department of Microbiology, Nihon University School of Dentistry, Chiyoda-ku, Tokyo, 101-8310, Japan
| | - Hideki Takai
- Department of Periodontology, Nihon University School of Dentistry at Matsudo, Matsudo, Chiba, 271-8587, Japan
- Research Institute of Oral Science, Nihon University School of Dentistry at Matsudo, Matsudo, Chiba, 271-8587, Japan
| | - Yorimasa Ogata
- Department of Periodontology, Nihon University School of Dentistry at Matsudo, Matsudo, Chiba, 271-8587, Japan.
- Research Institute of Oral Science, Nihon University School of Dentistry at Matsudo, Matsudo, Chiba, 271-8587, Japan.
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Jiang Z, Zhai X, Shi B, Luo D, Jin B. KIAA1199 overexpression is associated with abnormal expression of EMT markers and is a novel independent prognostic biomarker for hepatocellular carcinoma. Onco Targets Ther 2018; 11:8341-8348. [PMID: 30538502 PMCID: PMC6260188 DOI: 10.2147/ott.s187389] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Purpose To determined KIAA1199 expression and investigate its correlation with the clinicopathologic data and prognosis of hepatocellular carcinoma (HCC), as well as markers of epithelial-mesenchymal transition (EMT); N-cadherin, E-cadherin and vimentin. Materials and methods Western blot, quantitative real-time PCR, and immunohistochemical staining were used to measure KIAA1199 expression in human HCC specimens. Subsequently, the correlation between KIAA1199 expression and the pathological characteristics of HCC patients was analyzed. Univariate and multivariate analyses were used to explore the risk factors associated with disease-free survival (DFS) and overall survival (OS). Results KIAA1199 expression was remarkably increased in hepatocellular carcinoma tissues compared to paracarcinomatous tissues. This phenomenon was accompanied by aberrant expression of EMT-associated markers. In addition, high KIAA1199 expression was associated with severe pathological symptoms, low DFS, and low OS. Results of the multivariate analysis showed that KIAA1199 expression may be an independent predictor of low disease-free survival and OS of HCC patients. Conclusion KIAA1199 overexpression in HCC patients is associated with aberrant expression of EMT-associated markers and severe clinicopathological symptoms, and thus may function as a marker of poor prognosis in HCC.
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Affiliation(s)
- Zhengchen Jiang
- Department of General Surgery, Qilu Hospital of Shandong University, Jinnan, China,
| | - Xiangyu Zhai
- Department of General Surgery, Qilu Hospital of Shandong University, Jinnan, China,
| | - Binyao Shi
- Department of General Surgery, Qilu Hospital of Shandong University, Jinnan, China,
| | - Dan Luo
- School of Basic Medical Science, Shandong University, Jinnan, China
| | - Bin Jin
- Department of General Surgery, Qilu Hospital of Shandong University, Jinnan, China,
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Yulis M, Kusters DHM, Nusrat A. Cadherins: cellular adhesive molecules serving as signalling mediators. J Physiol 2018; 596:3883-3898. [PMID: 29968384 PMCID: PMC6117591 DOI: 10.1113/jp275328] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 05/03/2018] [Indexed: 01/06/2023] Open
Abstract
The single pass, transmembrane proteins of the cadherin family have been appreciated as important proteins that regulate intercellular adhesion. In addition to this critical function, cadherins contribute to important signalling events that control cellular homeostasis. Many examples exist of classical, desmosomal and atypical cadherins participating in the regulation of signalling events that control homeostatic functions in cells. Much of the work on cadherin mediated signalling focuses on classical cadherins or on specific disease states such as pemphigus vulgaris. Cadherin mediated signalling has been shown to play critical roles during development, in proliferation, apoptosis, disease pathobiology and beyond. It is becoming increasingly clear that cadherins operate through a range of molecular mechanisms. The diversity of pathways and cellular functions regulated by cadherins suggests that we have only scratched the surface in terms of the roles that these versatile proteins play in signalling and cellular function.
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Affiliation(s)
- Mark Yulis
- Department of PathologyThe University of MichiganAnn ArborMI 48109USA
| | | | - Asma Nusrat
- Department of PathologyThe University of MichiganAnn ArborMI 48109USA
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Kwon YJ, Ye DJ, Baek HS, Chun YJ. 7,12-Dimethylbenz[α]anthracene increases cell proliferation and invasion through induction of Wnt/β-catenin signaling and EMT process. ENVIRONMENTAL TOXICOLOGY 2018; 33:729-742. [PMID: 29663660 DOI: 10.1002/tox.22560] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Revised: 03/14/2018] [Accepted: 03/25/2018] [Indexed: 06/08/2023]
Abstract
7,12-Dimethylbenz[α]anthracene (DMBA) is a hazardous component present in polluted environments. DMBA has been used as an experimental tool for in vivo tumor formation owing to its carcinogenic effects, but the detailed molecular mechanism of DMBA has not been fully established. To comprehend the carcinogenic mechanism of DMBA, we explored its effects in the breast cancer cell lines, MCF-7 and MDA-MB-231, and the cervical cancer cell line, HeLa. Cell viability assay and measurement of a proliferation marker showed that DMBA markedly increased cancer cell proliferation. Furthermore, morphological observations and wound healing assays in nontumorigenic MCF-10A cells and trans-well invasion assays in cancer cells following DMBA treatment revealed that DMBA induced cell migration and invasion. To reveal the molecular mechanism of DMBA, we investigated the effects of DMBA on the epithelial-mesenchymal transition (EMT) process and Wnt/β-catenin signaling, a critical pathway for cell proliferation that was reported to correlate with the EMT process, by using quantitative RT-PCR (qPCR), western blot analysis, and confocal microscopy. Consequently, we found that DMBA increased cancer cell proliferation and invasion through the promotion of EMT-inducing factors and β-catenin. Especially, it was revealed in promoter activity assay using mutated luciferase vectors on transcription factor-binding sites that TWIST1 is promoted by DMBA through induction of STAT3-mediated promoter activation. To further elucidate the detailed mechanism of DMBA, we aimed to identify the key regulator of its carcinogenic action. DMBA was shown to significantly upregulate the expression of specificity protein 1 (Sp1), a transcription factor, and the carcinogenic effects of DMBA were blocked via the suppression or interruption of Sp1 activity. In conclusion, our data suggested that DMBA induced carcinogenic effects through activation of Wnt/β-catenin signaling and the EMT process by upregulating Sp1 activity.
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Affiliation(s)
- Yeo-Jung Kwon
- College of Pharmacy, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul, 06974, Republic of Korea
| | - Dong-Jin Ye
- College of Pharmacy, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul, 06974, Republic of Korea
| | - Hyoung-Seok Baek
- College of Pharmacy, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul, 06974, Republic of Korea
| | - Young-Jin Chun
- College of Pharmacy, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul, 06974, Republic of Korea
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34
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Kaffe E, Fiorotto R, Pellegrino F, Mariotti V, Amenduni M, Cadamuro M, Fabris L, Strazzabosco M, Spirli C. β-Catenin and interleukin-1β-dependent chemokine (C-X-C motif) ligand 10 production drives progression of disease in a mouse model of congenital hepatic fibrosis. Hepatology 2018; 67:1903-1919. [PMID: 29140564 PMCID: PMC5906178 DOI: 10.1002/hep.29652] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 10/25/2017] [Accepted: 11/12/2017] [Indexed: 12/20/2022]
Abstract
UNLABELLED Congenital hepatic fibrosis (CHF), a genetic disease caused by mutations in the polycystic kidney and hepatic disease 1 (PKHD1) gene, encoding for the protein fibrocystin/polyductin complex, is characterized by biliary dysgenesis, progressive portal fibrosis, and a protein kinase A-mediated activating phosphorylation of β-catenin at Ser675. Biliary structures of Pkhd1del4/del4 mice, a mouse model of CHF, secrete chemokine (C-X-C motif) ligand 10 (CXCL10), a chemokine able to recruit macrophages. The aim of this study was to clarify whether CXCL10 plays a pathogenetic role in disease progression in CHF/Caroli disease and to understand the mechanisms leading to increased CXCL10 secretion. We demonstrate that treatment of Pkhd1del4/del4 mice for 3 months with AMG-487, an inhibitor of CXC chemokine receptor family 3, the cognate receptor of CXCL10, reduces the peribiliary recruitment of alternative activated macrophages (cluster of differentiation 45+ F4/80+ cells), spleen size, liver fibrosis (sirius red), and cyst growth (cytokeratin 19-positive area), consistent with a pathogenetic role of CXCL10. Furthermore, we show that in fibrocystin/polyductin complex-defective cholangiocytes, isolated from Pkhd1del4/del4 mice, CXCL10 production is mediated by Janus kinase/signal transducer and activator of transcription 3 in response to interleukin 1beta (IL-1β) and β-catenin. Specifically, IL-1β promotes signal transducer and activator of transcription 3 phosphorylation, whereas β-catenin promotes its nuclear translocation. Increased pro-IL-1β was regulated by nuclear factor kappa-light-chain-enhancer of activated B cells, and increased secretion of active IL-1β was mediated by the activation of Nod-like receptors, pyrin domain containing 3 inflammasome (increased expression of caspase 1 and Nod-like receptors, pyrin domain containing 3). CONCLUSION In fibrocystin/polyductin complex-defective cholangiocytes, β-catenin and IL-1β are responsible for signal transducer and activator of transcription 3-dependent secretion of CXCL10; in vivo experiments show that the CXCL10/CXC chemokine receptor family 3 axis prevents the recruitment of macrophages, reduces inflammation, and halts the progression of the disease; the increased production of IL-1β highlights the autoinflammatory nature of CHF and may open novel therapeutic avenues. (Hepatology 2018;67:1903-1919).
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Affiliation(s)
- Eleanna Kaffe
- Section of Digestive Diseases, Liver Center, Yale University, New Haven, CT, USA
| | - Romina Fiorotto
- Section of Digestive Diseases, Liver Center, Yale University, New Haven, CT, USA,International Center for Digestive Health, University of Milan-Bicocca, Milan, Italy
| | - Francesca Pellegrino
- Section of Digestive Diseases, Liver Center, Yale University, New Haven, CT, USA
| | - Valeria Mariotti
- Section of Digestive Diseases, Liver Center, Yale University, New Haven, CT, USA,International Center for Digestive Health, University of Milan-Bicocca, Milan, Italy,Department of Molecular Medicine, University of Padua, School of Medicine, Padua, Italy
| | - Mariangela Amenduni
- Section of Digestive Diseases, Liver Center, Yale University, New Haven, CT, USA
| | - Massimiliano Cadamuro
- International Center for Digestive Health, University of Milan-Bicocca, Milan, Italy
| | - Luca Fabris
- International Center for Digestive Health, University of Milan-Bicocca, Milan, Italy,Department of Molecular Medicine, University of Padua, School of Medicine, Padua, Italy
| | - Mario Strazzabosco
- Section of Digestive Diseases, Liver Center, Yale University, New Haven, CT, USA,International Center for Digestive Health, University of Milan-Bicocca, Milan, Italy
| | - Carlo Spirli
- Section of Digestive Diseases, Liver Center, Yale University, New Haven, CT, USA,International Center for Digestive Health, University of Milan-Bicocca, Milan, Italy
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35
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Tunçdemir M, Yenmiş G, Tombultürk K, Arkan H, Soydaş T, Burak Tek R, Altıntaş Ö, Özkara H, Kanıgür-Sultuybek G. NFKB1 rs28362491 and pre-miRNA-146a rs2910164 SNPs on E-Cadherin expression in case of idiopathic oligospermia: A case-control study. Int J Reprod Biomed 2018. [DOI: 10.29252/ijrm.16.4.247] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
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36
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Curto J, Del Valle-Pérez B, Villarroel A, Fuertes G, Vinyoles M, Peña R, García de Herreros A, Duñach M. CK1ε and p120-catenin control Ror2 function in noncanonical Wnt signaling. Mol Oncol 2018; 12:611-629. [PMID: 29465811 PMCID: PMC5928365 DOI: 10.1002/1878-0261.12184] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Revised: 02/02/2018] [Accepted: 02/02/2018] [Indexed: 12/31/2022] Open
Abstract
Canonical and noncanonical Wnt pathways share some common elements but differ in the responses they evoke. Similar to Wnt ligands acting through the canonical pathway, Wnts that activate the noncanonical signaling, such as Wnt5a, promote Disheveled (Dvl) phosphorylation and its binding to the Frizzled (Fz) Wnt receptor complex. The protein kinase CK1ε is required for Dvl/Fz association in both canonical and noncanonical signaling. Here we show that differently to its binding to canonical Wnt receptor complex, CK1ε does not require p120‐catenin for the association with the Wnt5a co‐receptor Ror2. Wnt5a promotes the formation of the Ror2–Fz complex and enables the activation of Ror2‐bound CK1ε by Fz‐associated protein phosphatase 2A. Moreover, CK1ε also regulates Ror2 protein levels; CK1ε association stabilizes Ror2, which undergoes lysosomal‐dependent degradation in the absence of this kinase. Although p120‐catenin is not required for CK1ε association with Ror2, it also participates in this signaling pathway as p120‐catenin binds and maintains Ror2 at the plasma membrane; in p120‐depleted cells, Ror2 is rapidly internalized through a clathrin‐dependent mechanism. Accordingly, downregulation of p120‐catenin or CK1ε affects late responses to Wnt5a that are also sensitive to Ror2, such as SIAH2 transcription, cell invasion, or cortical actin polarization. Our results explain how CK1ε is activated by noncanonical Wnt and identify p120‐catenin and CK1ε as two critical factors controlling Ror2 function.
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Affiliation(s)
- Josué Curto
- Departament de Bioquímica i Biologia Molecular, CEB, Facultat de Medicina, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Beatriz Del Valle-Pérez
- Departament de Bioquímica i Biologia Molecular, CEB, Facultat de Medicina, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Aida Villarroel
- Departament de Bioquímica i Biologia Molecular, CEB, Facultat de Medicina, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Guillem Fuertes
- Departament de Bioquímica i Biologia Molecular, CEB, Facultat de Medicina, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Meritxell Vinyoles
- Departament de Bioquímica i Biologia Molecular, CEB, Facultat de Medicina, Universitat Autònoma de Barcelona, Bellaterra, Spain.,Programa de Recerca en Càncer, Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), Barcelona, Spain
| | - Raúl Peña
- Programa de Recerca en Càncer, Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), Barcelona, Spain
| | - Antonio García de Herreros
- Programa de Recerca en Càncer, Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), Barcelona, Spain.,Departament de Ciències, Experimentals i de la Salut, Universitat Pompeu Fabra, Barcelona, Spain
| | - Mireia Duñach
- Departament de Bioquímica i Biologia Molecular, CEB, Facultat de Medicina, Universitat Autònoma de Barcelona, Bellaterra, Spain
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Niell N, Larriba MJ, Ferrer‐Mayorga G, Sánchez‐Pérez I, Cantero R, Real FX, del Peso L, Muñoz A, González‐Sancho JM. The human PKP2/plakophilin-2 gene is induced by Wnt/β-catenin in normal and colon cancer-associated fibroblasts. Int J Cancer 2018; 142:792-804. [PMID: 29044515 PMCID: PMC5765413 DOI: 10.1002/ijc.31104] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Revised: 07/24/2017] [Accepted: 10/04/2017] [Indexed: 12/15/2022]
Abstract
Colorectal cancer results from the malignant transformation of colonic epithelial cells. Stromal fibroblasts are the main component of the tumour microenvironment, and play an important role in the progression of this and other neoplasias. Wnt/β-catenin signalling is essential for colon homeostasis, but aberrant, constitutive activation of this pathway is a hallmark of colorectal cancer. Here we present the first transcriptomic study on the effect of a Wnt factor on human colonic myofibroblasts. Wnt3A regulates the expression of 1,136 genes, of which 662 are upregulated and 474 are downregulated in CCD-18Co cells. A set of genes encoding inhibitors of the Wnt/β-catenin pathway stand out among those induced by Wnt3A, which suggests that there is a feedback inhibitory mechanism. We also show that the PKP2 gene encoding the desmosomal protein Plakophilin-2 is a novel direct transcriptional target of Wnt/β-catenin in normal and colon cancer-associated fibroblasts. PKP2 is induced by β-catenin/TCF through three binding sites in the gene promoter and one additional binding site located in an enhancer 20 kb upstream from the transcription start site. Moreover, Plakophilin-2 antagonizes Wnt/β-catenin transcriptional activity in HEK-293T cells, which suggests that it may act as an intracellular inhibitor of the Wnt/β-catenin pathway. Our results demonstrate that stromal fibroblasts respond to canonical Wnt signalling and that Plakophilin-2 plays a role in the feedback control of this effect suggesting that the response to Wnt factors in the stroma may modulate Wnt activity in the tumour cells.
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Affiliation(s)
- Núria Niell
- Instituto de Investigaciones Biomédicas “Alberto Sols”, Consejo Superior de Investigaciones Científicas (CSIC) –Universidad Autónoma de Madrid (UAM)MadridE‐28029Spain
- Departamento de BioquímicaFacultad de Medicina, Universidad Autónoma de Madrid (UAM)MadridE‐28029Spain
| | - María Jesús Larriba
- Instituto de Investigaciones Biomédicas “Alberto Sols”, Consejo Superior de Investigaciones Científicas (CSIC) –Universidad Autónoma de Madrid (UAM)MadridE‐28029Spain
- Instituto de Investigación Sanitaria Hospital Universitario La Paz (IdiPAZ)MadridE‐28046Spain
- Instituto de Salud Carlos IIICIBER de Cáncer (CIBERONC)MadridSpain
| | - Gemma Ferrer‐Mayorga
- Instituto de Investigaciones Biomédicas “Alberto Sols”, Consejo Superior de Investigaciones Científicas (CSIC) –Universidad Autónoma de Madrid (UAM)MadridE‐28029Spain
- Instituto de Investigación Sanitaria Hospital Universitario La Paz (IdiPAZ)MadridE‐28046Spain
- Instituto de Salud Carlos IIICIBER de Cáncer (CIBERONC)MadridSpain
- Fundación de Investigación HM HospitalesMadridE‐28015Spain
| | - Isabel Sánchez‐Pérez
- Instituto de Investigaciones Biomédicas “Alberto Sols”, Consejo Superior de Investigaciones Científicas (CSIC) –Universidad Autónoma de Madrid (UAM)MadridE‐28029Spain
- Departamento de BioquímicaFacultad de Medicina, Universidad Autónoma de Madrid (UAM)MadridE‐28029Spain
- Instituto de Investigación Sanitaria Hospital Universitario La Paz (IdiPAZ)MadridE‐28046Spain
- Unidad asociada de Biomedicina UCLM‐CSICMadridSpain
- Instituto de Salud Carlos IIICIBER de Enfermedades Raras (CIBERER)MadridSpain
| | - Ramón Cantero
- Instituto de Investigación Sanitaria Hospital Universitario La Paz (IdiPAZ)MadridE‐28046Spain
- Department of Surgery, La Paz University HospitalColorectal UnitMadridE‐28046Spain
| | - Francisco X. Real
- Instituto de Salud Carlos IIICIBER de Cáncer (CIBERONC)MadridSpain
- Cancer Cell Biology Programme, Spanish National Cancer Research CentreEpithelial Carcinogenesis GroupMadridE‐28029Spain
- Departament de Ciències Experimentals i de la SalutUniversitat Pompeu FabraBarcelonaE‐08003Spain
| | - Luis del Peso
- Instituto de Investigaciones Biomédicas “Alberto Sols”, Consejo Superior de Investigaciones Científicas (CSIC) –Universidad Autónoma de Madrid (UAM)MadridE‐28029Spain
- Departamento de BioquímicaFacultad de Medicina, Universidad Autónoma de Madrid (UAM)MadridE‐28029Spain
- Instituto de Investigación Sanitaria Hospital Universitario La Paz (IdiPAZ)MadridE‐28046Spain
- Instituto de Salud Carlos IIICIBER de Enfermedades Respiratorias (CIBERES)MadridSpain
| | - Alberto Muñoz
- Instituto de Investigaciones Biomédicas “Alberto Sols”, Consejo Superior de Investigaciones Científicas (CSIC) –Universidad Autónoma de Madrid (UAM)MadridE‐28029Spain
- Instituto de Investigación Sanitaria Hospital Universitario La Paz (IdiPAZ)MadridE‐28046Spain
- Instituto de Salud Carlos IIICIBER de Cáncer (CIBERONC)MadridSpain
| | - José Manuel González‐Sancho
- Instituto de Investigaciones Biomédicas “Alberto Sols”, Consejo Superior de Investigaciones Científicas (CSIC) –Universidad Autónoma de Madrid (UAM)MadridE‐28029Spain
- Departamento de BioquímicaFacultad de Medicina, Universidad Autónoma de Madrid (UAM)MadridE‐28029Spain
- Instituto de Salud Carlos IIICIBER de Cáncer (CIBERONC)MadridSpain
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Sethi GS, Dharwal V, Naura AS. Poly(ADP-Ribose)Polymerase-1 in Lung Inflammatory Disorders: A Review. Front Immunol 2017; 8:1172. [PMID: 28974953 PMCID: PMC5610677 DOI: 10.3389/fimmu.2017.01172] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Accepted: 09/04/2017] [Indexed: 12/19/2022] Open
Abstract
Asthma, acute lung injury (ALI), and chronic obstructive pulmonary disease (COPD) are lung inflammatory disorders with a common outcome, that is, difficulty in breathing. Corticosteroids, a class of potent anti-inflammatory drugs, have shown less success in the treatment/management of these disorders, particularly ALI and COPD; thus, alternative therapies are needed. Poly(ADP-ribose)polymerases (PARPs) are the post-translational modifying enzymes with a primary role in DNA repair. During the last two decades, several studies have reported the critical role played by PARPs in a good of inflammatory disorders. In the current review, the studies that address the role of PARPs in asthma, ALI, and COPD have been discussed. Among the different members of the family, PARP-1 emerges as a key player in the orchestration of lung inflammation in asthma and ALI. In addition, PARP activation seems to be associated with the progression of COPD. Furthermore, PARP-14 seems to play a crucial role in asthma. STAT-6 and GATA-3 are reported to be central players in PARP-1-mediated eosinophilic inflammation in asthma. Interestingly, oxidative stress-PARP-1-NF-κB axis appears to be tightly linked with inflammatory response in all three-lung diseases despite their distinct pathophysiologies. The present review sheds light on PARP-1-regulated factors, which may be common or differential players in asthma/ALI/COPD and put forward our prospective for future studies.
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Affiliation(s)
| | - Vivek Dharwal
- Department of Biochemistry, Panjab University, Chandigarh, India
| | - Amarjit S Naura
- Department of Biochemistry, Panjab University, Chandigarh, India
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Nayak D, Kumar A, Chakraborty S, Rasool RU, Amin H, Katoch A, Gopinath V, Mahajan V, Zilla MK, Rah B, Gandhi SG, Ali A, Kumar LD, Goswami A. Inhibition of Twist1-mediated invasion by Chk2 promotes premature senescence in p53-defective cancer cells. Cell Death Differ 2017; 24:1275-1287. [PMID: 28498365 DOI: 10.1038/cdd.2017.70] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Revised: 02/21/2017] [Accepted: 03/21/2017] [Indexed: 01/03/2023] Open
Abstract
Twist1, a basic helix-loop-helix transcription factor is implicated as a key mediator of epithelial-mesenchymal transition (EMT) and metastatic dissemination in p53-deficient cancer cells. On the other hand, checkpoint kinase 2 (Chk2), a major cell cycle regulatory protein provides a barrier to tumorigenesis due to DNA damage response by preserving genomic stability of the cells. Here we demonstrate that Chk2 induction proficiently abrogates invasion, cell scattering and invadopodia formation ability of p53-mutated invasive cells by suppressing Twist1, indicating Chk2 confers vital role in metastasis prevention. In addition, ectopic Chk2, as well as its (Chk2) induction by natural podophyllotoxin analog, 4'-demethyl-deoxypodophyllotoxin glucoside (4DPG), strongly restrain Twist1 activity along with other mesenchymal markers, for example, ZEB-1, vimentin and Snail1, whereas the epithelial markers such as E-cadherin and TIMP-1 expression augmented robustly. However, downregulation of endogenous Chk2 by siRNA as well as Chk2 selective inhibitor PV1019 implies that 4DPG-mediated inhibition of Twist1 is Chk2-dependent. Further, mechanistic studies unveil that Chk2 negatively regulates Twist1 promoter activity and it (Chk2) interacts steadily with Snail1 protein to curb EMT. Strikingly, Chk2 overexpression triggers premature senescence in these cells with distinctive increase in senescence-associated β-galactosidase (SA-β-gal) activity, G2/M cell cycle arrest and induction of senescence-specific marker p21waf1/Cip1. Importantly, stable knockdown of Twist1 by shRNA markedly augments p21 expression, its nuclear accumulation, senescence-associated heterochromatin foci (SAHF) and amplifies the number of SA-β-gal-positive cells. Moreover, our in vivo studies also validate that 4DPG treatment significantly abrogates tumor growth as well as metastatic lung nodules formation by elevating the level of phospho-Chk2, Chk2 and suppressing Twist1 activity in mouse mammary carcinoma model. In a nutshell, this report conceives a novel strategy of Twist1 suppression through Chk2 induction, which prevents metastatic dissemination and promotes premature senescence in p53-defective invasive cancer cells.
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Affiliation(s)
- Debasis Nayak
- Cancer Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu 180001, India.,Academy of Scientific &Innovative Research (AcSIR), CSIR-Indian Institute of Integrative Medicine, Jammu 180001, India
| | - Anmol Kumar
- Cancer Biology, CSIR-Centre for Cellular &Molecular Biology, Hyderabad 500007, India
| | - Souneek Chakraborty
- Cancer Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu 180001, India.,Academy of Scientific &Innovative Research (AcSIR), CSIR-Indian Institute of Integrative Medicine, Jammu 180001, India
| | - Reyaz Ur Rasool
- Cancer Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu 180001, India.,Academy of Scientific &Innovative Research (AcSIR), CSIR-Indian Institute of Integrative Medicine, Jammu 180001, India
| | - Hina Amin
- Cancer Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu 180001, India
| | - Archana Katoch
- Cancer Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu 180001, India.,Academy of Scientific &Innovative Research (AcSIR), CSIR-Indian Institute of Integrative Medicine, Jammu 180001, India
| | - Veena Gopinath
- Cancer Biology, CSIR-Centre for Cellular &Molecular Biology, Hyderabad 500007, India
| | - Vidushi Mahajan
- Academy of Scientific &Innovative Research (AcSIR), CSIR-Indian Institute of Integrative Medicine, Jammu 180001, India.,Plant Biotechnology Division, CSIR-Indian Institute of Integrative Medicine, Jammu 180001, India
| | - Mahesh K Zilla
- Academy of Scientific &Innovative Research (AcSIR), CSIR-Indian Institute of Integrative Medicine, Jammu 180001, India.,Natural Product Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Jammu 180001, India
| | - Bilal Rah
- Cancer Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu 180001, India.,Academy of Scientific &Innovative Research (AcSIR), CSIR-Indian Institute of Integrative Medicine, Jammu 180001, India
| | - Sumit G Gandhi
- Academy of Scientific &Innovative Research (AcSIR), CSIR-Indian Institute of Integrative Medicine, Jammu 180001, India.,Plant Biotechnology Division, CSIR-Indian Institute of Integrative Medicine, Jammu 180001, India
| | - Asif Ali
- Academy of Scientific &Innovative Research (AcSIR), CSIR-Indian Institute of Integrative Medicine, Jammu 180001, India.,Natural Product Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Jammu 180001, India
| | - Lekha Dinesh Kumar
- Cancer Biology, CSIR-Centre for Cellular &Molecular Biology, Hyderabad 500007, India
| | - Anindya Goswami
- Cancer Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Jammu 180001, India.,Academy of Scientific &Innovative Research (AcSIR), CSIR-Indian Institute of Integrative Medicine, Jammu 180001, India
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Hu Y, Dong H, Zou M, Huang C, Luo L, Yu C, Chen J, Xie Z, Zhao H, Le Y, Zou F, Liu L, Cai S. TSLP signaling blocking alleviates E-cadherin dysfunction of airway epithelium in a HDM-induced asthma model. Cell Immunol 2017; 315:56-63. [PMID: 28400057 DOI: 10.1016/j.cellimm.2017.02.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Revised: 02/08/2017] [Accepted: 02/18/2017] [Indexed: 01/03/2023]
Abstract
Recent studies have indicated that Thymic stromal lymphopoietin (TSLP) plays an important role in the prevention and treatment of asthma. However the role of TSLP in dysfunction of airway epithelial adherens junctions E-cadherin in house dust mite (HDM)-induced asthma has not been addressed. We hypothesized that TSLP contributed to HDM-induced E-cadherin dysfunction in asthmatic BALB/c mice and 16HBE cells. In vivo, a HDM-induced asthma mouse model was set up for 8weeks. Mice inhaled an anti-TSLP monoclonal antibody (mAb) before HDM. The mice treated with the anti-TSLP mAb ameliorated airway inflammation, the decreasing and aberrant distribution of E-cadherin and β-catenin as well as phosphorylation(p)-AKT induced by HDM. In vitro, HDM increased the expression of TSLP and E-cadherin dysfunction by PI3K/Akt signaling pathway. The exposure of 16HBE to TSLP resulted in redistribution of E-cadherin. These results indicate that TSLP may be an important contributor in E-cadherin dysfunction of HDM-induced asthma. TSLP signaling blocking shows a protective effect in mice and that the PI3K/Akt pathway may play a role in this process.
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Affiliation(s)
- Yahui Hu
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Hangming Dong
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Mengchen Zou
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Chaowen Huang
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Lishan Luo
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Changhui Yu
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - JiaLong Chen
- School of Public Health and Tropical Medicine, Southern Medical University, Guangzhou 510515, China
| | - Zhefan Xie
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Haijin Zhao
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Yanqing Le
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Fei Zou
- School of Public Health and Tropical Medicine, Southern Medical University, Guangzhou 510515, China
| | - Laiyu Liu
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Shaoxi Cai
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
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Nlrp3 Activation Induces Il-18 Synthesis and Affects the Epithelial Barrier Function in Reactive Cholangiocytes. THE AMERICAN JOURNAL OF PATHOLOGY 2016; 187:366-376. [PMID: 27912077 DOI: 10.1016/j.ajpath.2016.10.010] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Revised: 09/23/2016] [Accepted: 10/11/2016] [Indexed: 12/22/2022]
Abstract
Microbial products are thought to influence the progression of cholangiopathies, in particular primary sclerosing cholangitis (PSC). Inflammasomes are molecular platforms that respond to microbial products through the synthesis of proinflammatory cytokines. We investigated the role of inflammasome activation in cholangiocyte response to injury. Nucleotide-binding oligomerization domain (NOD)-like receptor family, pyrin domain-containing protein 3 (Nlrp3) expression was tested in cholangiocytes of normal and cholestatic livers. Effects of Nlrp3 activation induced by incubation with lipopolysaccharide and ATP was studied in vitro in normal and siRNA-Nlrp3 knocked-down cholangiocytes. Wild-type and Nlrp3 knockout (Nlrp3-/-) mice were fed 3,5-diethoxycarbonyl-1,4-dihydrocollidine (DDC; a model of sclerosing cholangitis) for 4 weeks. Nlrp3 and its components were overexpressed in cholangiocytes of mice subjected to DDC and in patients affected by PSC. In vitro, Nlrp3 activation stimulated expression of Il-18 but not of Il-1β and Il-6. Nlrp3 activation had no effect on cholangiocyte proliferation but significantly decreased the expression of Zonulin-1 and E-cadherin, whereas Nlrp3 knockdown increased the permeability of cholangiocyte monolayers. In vivo, the DDC-stimulated number of cytokeratin-19-positive cells in the liver of wild-type animals was slightly reduced in Nlrp3-/- mice, and expression of E-cadherin was reestablished. In conclusion, Nlrp3 is expressed in reactive cholangiocytes, in both murine models and patients with PSC. Activation of Nlrp3 leads to synthesis of proinflammatory cytokines and influences epithelial integrity of cholangiocytes.
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Wang B, Liu J, Xiong Y, Yan Y, Sun B, Zhao Q, Duan L, Li P, Huang Y, Chen W. Soluble E-cadherin as a serum biomarker in patients with HBV-related liver diseases. Clin Biochem 2016; 49:1232-1237. [DOI: 10.1016/j.clinbiochem.2016.07.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Revised: 07/03/2016] [Accepted: 07/17/2016] [Indexed: 12/13/2022]
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Loubat-Casanovas J, Peña R, Gonzàlez N, Alba-Castellón L, Rosell S, Francí C, Navarro P, García de Herreros A. Snail1 is required for the maintenance of the pancreatic acinar phenotype. Oncotarget 2016; 7:4468-82. [PMID: 26735179 PMCID: PMC4826219 DOI: 10.18632/oncotarget.6785] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Accepted: 11/25/2015] [Indexed: 12/16/2022] Open
Abstract
The Snail1 transcriptional factor is required for correct embryonic development, yet its expression in adult animals is very limited and its functional roles are not evident. We have now conditionally inactivated Snail1 in adult mice and analyzed the phenotype of these animals. Snail1 ablation rapidly altered pancreas structure: one month after Snail1 depletion, acinar cells were markedly depleted, and pancreas accumulated adipose tissue. Snail1 expression was not detected in the epithelium but was in pancreatic mesenchymal cells (PMCs). Snail1 ablation in cultured PMCs downregulated the expression of several β-catenin/Tcf-4 target genes, modified the secretome of these cells and decreased their ability to maintain acinar markers in cultured pancreas cells. Finally, Snail1 deficiency modified the phenotype of pancreatic tumors generated in transgenic mice expressing c-myc under the control of the elastase promoter. Specifically, Snail1 depletion did not significantly alter the size of the tumors but accelerated acinar-ductal metaplasia. These results demonstrate that Snail1 is expressed in PMCs and plays a pivotal role in maintaining acinar cells within the pancreas in normal and pathological conditions.
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Affiliation(s)
- Jordina Loubat-Casanovas
- Programa de Recerca en Càncer, Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), 08003 Barcelona, Spain
| | - Raúl Peña
- Programa de Recerca en Càncer, Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), 08003 Barcelona, Spain
| | - Núria Gonzàlez
- Programa de Recerca en Càncer, Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), 08003 Barcelona, Spain.,Servei d'Oncologia Mèdica, Hospital del Mar, 08003 Barcelona, Spain
| | - Lorena Alba-Castellón
- Programa de Recerca en Càncer, Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), 08003 Barcelona, Spain
| | - Santi Rosell
- Programa de Recerca en Càncer, Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), 08003 Barcelona, Spain.,Escola Superior Infermeria del Mar, Universitat Pompeu Fabra, 08003 Barcelona, Spain
| | - Clara Francí
- Programa de Recerca en Càncer, Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), 08003 Barcelona, Spain
| | - Pilar Navarro
- Programa de Recerca en Càncer, Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), 08003 Barcelona, Spain
| | - Antonio García de Herreros
- Programa de Recerca en Càncer, Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), 08003 Barcelona, Spain.,Departament de Ciències Experimentals i de la Salut, Universitat Pompeu Fabra, 08003 Barcelona, Spain
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Ma B, Hottiger MO. Crosstalk between Wnt/β-Catenin and NF-κB Signaling Pathway during Inflammation. Front Immunol 2016; 7:378. [PMID: 27713747 PMCID: PMC5031610 DOI: 10.3389/fimmu.2016.00378] [Citation(s) in RCA: 409] [Impact Index Per Article: 51.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Accepted: 09/08/2016] [Indexed: 12/14/2022] Open
Abstract
Besides its important role in embryonic development and homeostatic self-renewal in adult tissues, Wnt/β-catenin signaling exerts both anti-inflammatory and proinflammatory functions. This is, at least partially, due to either repressing or enhancing the NF-κB pathway. Similarly, the NF-κB pathway either positively or negatively regulates Wnt/β-catenin signaling. Different components of the two pathways are involved in this crosstalk, forming a complex regulatory network. This review summarizes our current understanding of the molecular mechanisms underlying the cross-regulation between the two pathways and discusses their involvement in inflammation and inflammation-associated diseases such as cancer.
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Affiliation(s)
- Bin Ma
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China; Renji Hospital Clinical Stem Cell Research Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Michael O Hottiger
- Department of Molecular Mechanisms of Disease, University of Zurich , Zurich , Switzerland
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45
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Tanaka S, Kobayashi W, Haraguchi M, Ishihata K, Nakamura N, Ozawa M. Snail1 expression in human colon cancer DLD-1 cells confers invasive properties without N-cadherin expression. Biochem Biophys Rep 2016; 8:120-126. [PMID: 28955947 PMCID: PMC5613769 DOI: 10.1016/j.bbrep.2016.08.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2015] [Revised: 07/19/2016] [Accepted: 08/17/2016] [Indexed: 11/30/2022] Open
Abstract
The epithelial-mesenchymal transition (EMT) is a fundamental characteristic of carcinoma cells. EMT is generally associated with a change in cellular morphology from cobblestone to spindle shape, reduced expression of epithelial markers such as E-cadherin, and enhanced expression of mesenchymal markers such as N-cadherin. This EMT-associated reciprocal expression of E-cadherin and N-cadherin has been called the "cadherin switch". Downregulation of E-cadherin enables cells to dissociate from colonies while upregulation of N-cadherin is associated with increased invasiveness. The transcription factor Snail1 induces these changes in various epithelial cell lines, including canine MDCK cells and human A431 cells. In the present study, we introduced a Snail1 expression vector into human DLD-1 cells and isolated stable transfectants. These cells showed changes in morphology, reduced expression of epithelial marker E-cadherin and occludin, and elevated invasion and migration. However, neither expression of N-cadherin protein nor its corresponding mRNA was detected. Therefore, elevated N-cadherin expression is not required for invasiveness of the cells.
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Affiliation(s)
- Shoko Tanaka
- Department of Biochemistry and Molecular Biology, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan.,Department of Oral and Maxillofacial Surgery, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan
| | - Wakako Kobayashi
- Department of Biochemistry and Molecular Biology, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan
| | - Misako Haraguchi
- Department of Biochemistry and Molecular Biology, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan
| | - Kiyohide Ishihata
- Department of Oral and Maxillofacial Surgery, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan
| | - Norifumi Nakamura
- Department of Oral and Maxillofacial Surgery, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan
| | - Masayuki Ozawa
- Department of Biochemistry and Molecular Biology, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan
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46
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Enhancer decommissioning by Snail1-induced competitive displacement of TCF7L2 and down-regulation of transcriptional activators results in EPHB2 silencing. BIOCHIMICA ET BIOPHYSICA ACTA-GENE REGULATORY MECHANISMS 2016; 1859:1353-1367. [PMID: 27504909 DOI: 10.1016/j.bbagrm.2016.08.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Revised: 07/25/2016] [Accepted: 08/04/2016] [Indexed: 12/20/2022]
Abstract
Transcriptional silencing is a major cause for the inactivation of tumor suppressor genes, however, the underlying mechanisms are only poorly understood. The EPHB2 gene encodes a receptor tyrosine kinase that controls epithelial cell migration and allocation in intestinal crypts. Through its ability to restrict cell spreading, EPHB2 functions as a tumor suppressor in colorectal cancer whose expression is frequently lost as tumors progress to the carcinoma stage. Previously we reported that EPHB2 expression depends on a transcriptional enhancer whose activity is diminished in EPHB2 non-expressing cells. Here we investigated the mechanisms that lead to EPHB2 enhancer inactivation. We show that expression of EPHB2 and SNAIL1 - an inducer of epithelial-mesenchymal transition (EMT) - is anti-correlated in colorectal cancer cell lines and tumors. In a cellular model of Snail1-induced EMT, we observe that features of active chromatin at the EPHB2 enhancer are diminished upon expression of murine Snail1. We identify the transcription factors FOXA1, MYB, CDX2 and TCF7L2 as EPHB2 enhancer factors and demonstrate that Snail1 indirectly inactivates the EPHB2 enhancer by downregulation of FOXA1 and MYB. In addition, Snail1 induces the expression of Lymphoid enhancer factor 1 (LEF1) which competitively displaces TCF7L2 from the EPHB2 enhancer. In contrast to TCF7L2, however, LEF1 appears to repress the EPHB2 enhancer. Our findings underscore the importance of transcriptional enhancers for gene regulation under physiological and pathological conditions and show that SNAIL1 employs a combinatorial mechanism to inactivate the EPHB2 enhancer based on activator deprivation and competitive displacement of transcription factors.
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Haines RJ, Beard RS, Chen L, Eitnier RA, Wu MH. Interleukin-1β Mediates β-Catenin-Driven Downregulation of Claudin-3 and Barrier Dysfunction in Caco2 Cells. Dig Dis Sci 2016; 61:2252-2261. [PMID: 27074920 PMCID: PMC5517031 DOI: 10.1007/s10620-016-4145-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Accepted: 03/22/2016] [Indexed: 01/08/2023]
Abstract
BACKGROUND IL-1β is a cytokine involved in mediating epithelial barrier dysfunction in the gut. It is known that IL-1β mediates activation of non-muscle myosin light chain kinase in epithelial cells, but the precise mechanism by which epithelial barrier dysfunction is induced by IL-1β is not understood. METHODS AND RESULTS Using a Caco2 cell model, we show that the expression of the tight junction protein, claudin-3, is transcriptionally downregulated by IL-1β treatment. In addition, after assessing protein and mRNA expression, and protein localization, we show that inhibition of nmMLCK rescues IL-1β-mediated decrease in claudin-3 expression as well as junction protein redistribution. Using chromatin immunoprecipitation assays, we also show that β-catenin targeting of the claudin-3 promoter occurs as a consequence of IL-1β-mediated epithelial barrier dysfunction, and inhibition of nmMLCK interferes with this interaction. CONCLUSIONS Taken together, these data represent the first line of evidence demonstrating nmMLCK regulation of claudin-3 expression in response to IL-1β-treated epithelial cells.
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Affiliation(s)
- R J Haines
- Department of Surgery, University of South Florida, Morsani College of Medicine, 12901 Bruce B. Downs Blvd., MDC 8, Office MDC 2012, Tampa, FL, 33612, USA
- James A. Haley Veterans' Hospital, Tampa, FL, USA
| | - R S Beard
- Department of Molecular Pharmacology and Physiology, University of South Florida, Morsani College of Medicine, Tampa, FL, USA
| | - L Chen
- Department of Surgery, University of South Florida, Morsani College of Medicine, 12901 Bruce B. Downs Blvd., MDC 8, Office MDC 2012, Tampa, FL, 33612, USA
| | - R A Eitnier
- Department of Surgery, University of South Florida, Morsani College of Medicine, 12901 Bruce B. Downs Blvd., MDC 8, Office MDC 2012, Tampa, FL, 33612, USA
| | - M H Wu
- Department of Surgery, University of South Florida, Morsani College of Medicine, 12901 Bruce B. Downs Blvd., MDC 8, Office MDC 2012, Tampa, FL, 33612, USA.
- James A. Haley Veterans' Hospital, Tampa, FL, USA.
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Huang C, Dong H, Zou M, Luo L, Hu Y, Xie Z, Le Y, Liu L, Zou F, Cai S. Bevacizumab reduced auto-phosphorylation of VEGFR2 to protect HDM-induced asthma mice. Biochem Biophys Res Commun 2016; 478:181-186. [PMID: 27453339 DOI: 10.1016/j.bbrc.2016.07.072] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Accepted: 07/18/2016] [Indexed: 01/29/2023]
Abstract
Vascular endothelial growth factor (VEFG) is a major angiogenic factor involved in both normal physiological processes, such as embryonic development and wound healing, and in diseases, like cancer. Recent studies have revealed the functions of VEGF in inflammation and immunoregulation. Asthma is a chronic inflammation of the airways characterized by airway epithelial barrier dysfunction and imbalance in T-helper (Th) 1/Th2 during immunoregulation. We hypothesized that VEGF plays an important role in asthma. Utilizing a house dust mite extract (HDM)-induced murine model of asthma, we investigated whether bevacizumab, a humanized anti-VEGF monoclonal antibody, could protect the epithelial barrier in murine airways. We found that bevacizumab reduced airway hyper-responsiveness (AHR) and airway inflammation induced by HDM. In addition, HDM exposure promoted expression of VEGF, and caused AHR, disruptions of the epithelial barrier, and airway inflammation. Bevacizumab ameliorated AHR and the release of Th2 cytokines, thereby protecting the epithelial barrier. Our data suggest that bevacizumab may be a new therapeutic strategy for asthma.
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Affiliation(s)
- Chaowen Huang
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Hangming Dong
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Mengchen Zou
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Lishan Luo
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Yahui Hu
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Zhefan Xie
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Yanqing Le
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Laiyu Liu
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Fei Zou
- School of Public Health and Tropical Medicine, Southern Medical University, Guangzhou 510515, China
| | - Shaoxi Cai
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
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Wan J, Li P, Liu DW, Chen Y, Mo HZ, Liu BG, Chen WJ, Lu XQ, Guo J, Zhang Q, Qiao YJ, Liu ZS, Wan GR. GSK-3β inhibitor attenuates urinary albumin excretion in type 2 diabetic db/db mice, and delays epithelial-to-mesenchymal transition in mouse kidneys and podocytes. Mol Med Rep 2016; 14:1771-84. [PMID: 27357417 DOI: 10.3892/mmr.2016.5441] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Accepted: 02/02/2016] [Indexed: 11/05/2022] Open
Abstract
The mechanism underlying epithelial‑to‑mesenchymal transition (EMT) caused by high glucose (HG) stimulation in diabetic nephropathy (DN) remains to be fully elucidated. The present study investigated the effects of HG on EMT and the activity of glycogen synthase kinase 3β (GSK‑3β) in podocytes and the kidneys of db/db mice, and assessed the effects of (2'Z, 3'E)‑6‑bromoindirubin‑3'‑oxime (BIO), an inhibitor of GSK‑3β, on EMT and glomerular injury. The resulting data showed that the activity of GSK‑3β was upregulated by HG and downregulated by BIO in the podocytes and the renal cortex. The expression levels of epithelial markers, including nephrin, podocin and synaptopodin, were decreased by HG and increased by BIO, whereas the reverse were true for mesenchymal markers, including α‑smooth muscle actin (α‑SMA) and fibronectin. The expression levels of β‑catenin and Snail, in contrast to current understanding of the Wnt signaling pathway, were increased by HG and decreased by BIO. In addition, expression of the vitamin D receptor (VDR) was decreased by HG and increased by BIO. In conclusion, the present study revealed that the mechanism by which BIO inhibited HG‑mediated EMT in podocytes and the renal cortex was primarily due to the VDR. Treatment with BIO protected renal function by maintaining the integrity of the filtration membrane and decreasing UAE, but not by regulating blood glucose. Therefore, GSK‑3β may be used as a sensitive biomarker of DN, and its inhibition by BIO may be effective in the treatment of DN.
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Affiliation(s)
- Jia Wan
- Henan Food and Drug Administration, Zhengzhou, Henan 450012, P.R. China
| | - Peng Li
- Pharmaceutical College, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
| | - Dong-Wei Liu
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450012, P.R. China
| | - Ying Chen
- School of Life Science and Technology, Henan Institute of Science and Technology, Xinxiang, Henan 453003, P.R. China
| | - Hai-Zhen Mo
- Department of Food Science, Henan Institute of Science and Technology, Xinxiang, Henan 453003, P.R. China
| | - Ben-Guo Liu
- Department of Food Science, Henan Institute of Science and Technology, Xinxiang, Henan 453003, P.R. China
| | - Wen-Jie Chen
- Modern Education Technology Center, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
| | - Xiao-Qing Lu
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450012, P.R. China
| | - Jia Guo
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450012, P.R. China
| | - Qian Zhang
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450012, P.R. China
| | - Ying-Jin Qiao
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450012, P.R. China
| | - Zhang-Suo Liu
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450012, P.R. China
| | - Guang-Rui Wan
- Pharmaceutical College, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
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Activation of CK1ɛ by PP2A/PR61ɛ is required for the initiation of Wnt signaling. Oncogene 2016; 36:429-438. [PMID: 27321178 DOI: 10.1038/onc.2016.209] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Revised: 03/18/2016] [Accepted: 05/08/2016] [Indexed: 12/21/2022]
Abstract
Canonical Wnt signaling induces the stabilization of β-catenin, its translocation to the nucleus and the activation of target promoters. This pathway is initiated by the binding of Wnt ligands to the Frizzled receptor, the association of the LRP5/6 co-receptor and the formation of a complex comprising Dvl-2, Axin and protein kinases CK1α, ɛ, γ and GSK3. Among these, activation of CK1ɛ, constitutively bound to LRP5/6 through p120-catenin, is required for the association of the rest of the components. We describe here that CK1ɛ is activated by the PP2A/PR61ɛ phosphatase. Binding of Wnt ligands promotes the interaction of LRP5/6-associated CK1ɛ with Frizzled-bound PR61ɛ regulatory subunit, facilitating the access of PP2A catalytic subunit to CK1ɛ and its activation, what enables the recruitment of Dvl-2 to the receptor complex and the initiation of the Wnt pathway. Our results uncover the mechanism of activation of the canonical Wnt pathway by its ligands.
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