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Li P, Ma X, Gu X. LncRNA MAFG-AS1 is involved in human cancer progression. Eur J Med Res 2023; 28:497. [PMID: 37941063 PMCID: PMC10631199 DOI: 10.1186/s40001-023-01486-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 10/30/2023] [Indexed: 11/10/2023] Open
Abstract
Long noncoding RNAs (lncRNAs) refer to a type of non-protein-coding transcript of more than 200 nucleotides. LncRNAs play fundamental roles in disease development and progression, and lncRNAs are dysregulated in many pathophysiological processes. Thus, lncRNAs may have potential value in clinical applications. The lncRNA, MAF BZIP Transcription Factor G (MAFG)-AS1, is dysregulated in several cancer, including breast cancer, lung cancer, liver cancer, bladder cancer, colorectal cancer, gastric cancer, esophagus cancer, prostate cancer, pancreatic cancer, ovarian cancer, and glioma. Altered MAFG-AS1 levels are also associated with diverse clinical characteristics and patient outcomes. Mechanistically, MAFG-AS1 mediates a variety of cellular processes via the regulation of target gene expression. Therefore, the diagnostic, prognostic, and therapeutic aspects of MAFG-AS1 have been widely explored. In this review, we discuss the expression, major roles, and molecular mechanisms of MAFG-AS1, the relationship between MAFG-AS1 and clinical features of diseases, and the clinical applications of MAFG-AS1.
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Affiliation(s)
- Penghui Li
- Department of Oncology, The First Affiliated Hospital, College of Clinical Medicine, Henan University of Science and Technology, Luoyang, 471000, Henan, China
| | - Xiao Ma
- Zhejiang University School of Medicine, Hangzhou, 310000, Zhejiang, China
| | - Xinyu Gu
- Department of Oncology, The First Affiliated Hospital, College of Clinical Medicine, Henan University of Science and Technology, Luoyang, 471000, Henan, China.
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2
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Wang H, Han H, Niu Y, Li X, Du X, Wang Q. LPP polymorphisms are risk factors for allergic rhinitis in the Chinese Han population. Cytokine 2022; 159:156027. [PMID: 36084606 DOI: 10.1016/j.cyto.2022.156027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 05/17/2022] [Accepted: 08/26/2022] [Indexed: 11/03/2022]
Abstract
BACKGROUND Lipoma preferred partner (LPP) polymorphisms are related to immune diseases, but the role of LPP gene in the pathogenesis of allergic rhinitis (AR) is unclear. The current study aimed to explore the contribution of LPP variants to AR susceptibility in the Chinese Han population. METHODS A total of 992 healthy controls and 992 patients with AR were recruited. Agena MassARRAY system was applied for genotyping. Odds ratios (OR) and 95% confidence intervals (CI) adjusted by age, sex, and body mass index (BMI) were calculated to conduct the risk assessment of LPP variants in people with a predisposition to AR. Additionally, multifactor dimensionality reduction (MDR) was applied to identify high-order interaction models for AR risk. RESULTS We found that rs2030519-G (p = 0.027, OR: 1.15, 95% CI: 1.02-1.31), rs6780858-G (p = 0.019, OR: 1.16, 95% CI: 1.03-1.32), and rs60946162-T (p = 0.014, OR: 1.18, 95% CI: 1.03-1.34) were associated with increased susceptibility to AR. Subgroup analyses indicated the interaction of LPP polymorphisms in terms of age, gender, and BMI with AR susceptibility (p < 0.05, OR > 1). MDR analysis revealed that rs60946162 had the information gain (0.40%) of individual attribute regarding AR. CONCLUSION Our results first determined that rs2030519, rs6780858, and rs60946162 were correlated with increased susceptibility to AR in the Chinese Han population, which add to our understanding of the impact of LPP gene variants on AR development.
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Affiliation(s)
- Haiying Wang
- Shenmu Hospital, The Affiliated Shenmu Hospital of Northwest University, Shenmu 719300, China
| | - Hui Han
- Shenmu Hospital, The Affiliated Shenmu Hospital of Northwest University, Shenmu 719300, China
| | - Yongliang Niu
- Shenmu Hospital, The Affiliated Shenmu Hospital of Northwest University, Shenmu 719300, China
| | - Xiaobo Li
- Shenmu Hospital, The Affiliated Shenmu Hospital of Northwest University, Shenmu 719300, China
| | - Xintao Du
- Shenmu Hospital, The Affiliated Shenmu Hospital of Northwest University, Shenmu 719300, China
| | - Qiang Wang
- Shenmu Hospital, The Affiliated Shenmu Hospital of Northwest University, Shenmu 719300, China.
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3
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Tang H, Li X, Jiang L, Liu Z, Chen L, Chen J, Deng M, Zhou F, Zheng X, Liu Z. RITA1 drives the growth of bladder cancer cells by recruiting TRIM25 to facilitate the proteasomal degradation of RBPJ. Cancer Sci 2022; 113:3071-3084. [PMID: 35701858 PMCID: PMC9459252 DOI: 10.1111/cas.15459] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 06/01/2022] [Accepted: 06/08/2022] [Indexed: 11/28/2022] Open
Abstract
Bladder cancer (BC) is one of the most prevalent malignancies worldwide, but it lacks effective targeted therapy due to its elusive molecular mechanism. Therefore, it is important to further investigate the molecular mechanisms that mediate BC progression. By performing a tumor tissue–based gene microarray and shRNA library screening, we found that recombination signal binding protein for immunoglobulin kappa J region (RBPJ) interacting and tubulin associated 1 (RITA1) is crucial for the growth of BC cells. Moreover, RITA1 is aberrantly highly expressed in BC tissues and is also correlated with poor prognosis in patients with BC. Mechanistically, we determined that RITA1 recruits tripartite motif containing 25 (TRIM25) to ubiquitinate RBPJ to accelerate its degradation via proteasome, which leads to the transcriptional inhibition of Notch1 downstream targets. Our results suggest that aberrant high expression of RITA1 drives the growth of BC cells via the RITA1/TRIM25/RBPJ axis and RITA1 may serve as a promising therapeutic target for BC.
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Affiliation(s)
- Huancheng Tang
- Department of Urology, Sun Yat-Sen University Cancer Center, No. 651, Dongfeng Road East, Guangzhou, China.,State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine; Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Xiangdong Li
- Department of Urology, Sun Yat-Sen University Cancer Center, No. 651, Dongfeng Road East, Guangzhou, China.,State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine; Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Lijuan Jiang
- Department of Urology, Sun Yat-Sen University Cancer Center, No. 651, Dongfeng Road East, Guangzhou, China.,State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine; Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Zefu Liu
- Department of Urology, Sun Yat-Sen University Cancer Center, No. 651, Dongfeng Road East, Guangzhou, China.,State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine; Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Lei Chen
- Department of Urology, Sun Yat-Sen University Cancer Center, No. 651, Dongfeng Road East, Guangzhou, China.,State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine; Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Jiawei Chen
- Department of Urology, Sun Yat-Sen University Cancer Center, No. 651, Dongfeng Road East, Guangzhou, China.,State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine; Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Minhua Deng
- Department of Urology, Sun Yat-Sen University Cancer Center, No. 651, Dongfeng Road East, Guangzhou, China.,State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine; Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Fangjian Zhou
- Department of Urology, Sun Yat-Sen University Cancer Center, No. 651, Dongfeng Road East, Guangzhou, China.,State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine; Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Xianchong Zheng
- Department of Urology, Sun Yat-Sen University Cancer Center, No. 651, Dongfeng Road East, Guangzhou, China.,State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine; Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Zhuowei Liu
- Department of Urology, Sun Yat-Sen University Cancer Center, No. 651, Dongfeng Road East, Guangzhou, China.,State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine; Sun Yat-sen University Cancer Center, Guangzhou, China
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4
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CK1 Is a Druggable Regulator of Microtubule Dynamics and Microtubule-Associated Processes. Cancers (Basel) 2022; 14:cancers14051345. [PMID: 35267653 PMCID: PMC8909099 DOI: 10.3390/cancers14051345] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 02/25/2022] [Accepted: 03/03/2022] [Indexed: 02/05/2023] Open
Abstract
Protein kinases of the Casein Kinase 1 family play a vital role in the regulation of numerous cellular processes. Apart from functions associated with regulation of proliferation, differentiation, or apoptosis, localization of several Casein Kinase 1 isoforms to the centrosome and microtubule asters also implicates regulatory functions in microtubule dynamic processes. Being localized to the spindle apparatus during mitosis Casein Kinase 1 directly modulates microtubule dynamics by phosphorylation of tubulin isoforms. Additionally, site-specific phosphorylation of microtubule-associated proteins can be related to the maintenance of genomic stability but also microtubule stabilization/destabilization, e.g., by hyper-phosphorylation of microtubule-associated protein 1A and RITA1. Consequently, approaches interfering with Casein Kinase 1-mediated microtubule-specific functions might be exploited as therapeutic strategies for the treatment of cancer. Currently pursued strategies include the development of Casein Kinase 1 isoform-specific small molecule inhibitors and therapeutically useful peptides specifically inhibiting kinase-substrate interactions.
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Lui JW, Moore SP, Huang L, Ogomori K, Li Y, Lang D. YAP facilitates melanoma migration through regulation of actin-related protein 2/3 complex subunit 5 (ARPC5). Pigment Cell Melanoma Res 2022; 35:52-65. [PMID: 34468072 PMCID: PMC8958630 DOI: 10.1111/pcmr.13013] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 07/31/2021] [Accepted: 08/21/2021] [Indexed: 01/03/2023]
Abstract
Yes-associated protein 1 (YAP) and transcriptional coactivator with PDZ-binding motif (TAZ) are transcriptional coactivators that have been implicated in driving metastasis and progression in many cancers, mainly through their transcriptional regulation of downstream targets. Although YAP and TAZ have shown redundancy in many contexts, it is still unknown whether or not this is true in melanoma. Here, we show that while both YAP and TAZ are expressed in a panel of melanoma cell lines, depletion of YAP results in decreased cell numbers, focal adhesions, and the ability to invade matrigel. Using non-biased RNA-sequencing analysis, we find that melanoma cells depleted of YAP, TAZ, or YAP/TAZ exhibit drastically different transcriptomes. We further uncover the ARP2/3 subunit ARPC5 as a specific target of YAP but not TAZ and that ARPC5 is essential for YAP-dependent maintenance of melanoma cell focal adhesion numbers. Our findings suggest that in melanoma, YAP drives melanoma progression, survival, and invasion.
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Affiliation(s)
- Jason W. Lui
- Department of Dermatology, Boston University, Boston MA, 02118,Committee on Development, Regeneration, and Stem Cell Biology, University of Chicago, Chicago Il, 60637,These authors contributed equally
| | - Stephen P.G. Moore
- Department of Dermatology, Boston University, Boston MA, 02118,These authors contributed equally
| | - Lee Huang
- Department of Dermatology, Boston University, Boston MA, 02118
| | - Kelsey Ogomori
- Committee on Development, Regeneration, and Stem Cell Biology, University of Chicago, Chicago Il, 60637
| | - Yan Li
- Center for Research Informatics, University of Chicago, Chicago Il, 60637
| | - Deborah Lang
- Department of Dermatology, Boston University, Boston MA, 02118
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6
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Moon HH, Kreis NN, Friemel A, Roth S, Schulte D, Solbach C, Louwen F, Yuan J, Ritter A. Mitotic Centromere-Associated Kinesin (MCAK/KIF2C) Regulates Cell Migration and Invasion by Modulating Microtubule Dynamics and Focal Adhesion Turnover. Cancers (Basel) 2021; 13:5673. [PMID: 34830827 PMCID: PMC8616312 DOI: 10.3390/cancers13225673] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 11/08/2021] [Accepted: 11/10/2021] [Indexed: 01/16/2023] Open
Abstract
The microtubule (MT) cytoskeleton is crucial for cell motility and migration by regulating multiple cellular activities such as transport and endocytosis of key components of focal adhesions (FA). The kinesin-13 family is important in the regulation of MT dynamics and the best characterized member of this family is the mitotic centromere-associated kinesin (MCAK/KIF2C). Interestingly, its overexpression has been reported to be related to increased metastasis in various tumor entities. Moreover, MCAK is involved in the migration and invasion behavior of various cell types. However, the precise molecular mechanisms were not completely clarified. To address these issues, we generated CRISPR/dCas9 HeLa and retinal pigment epithelium (RPE) cell lines overexpressing or downregulating MCAK. Both up- or downregulation of MCAK led to reduced cell motility and poor migration in malignant as well as benign cells. Specifically, it's up- or downregulation impaired FA protein composition and phosphorylation status, interfered with a proper spindle and chromosome segregation, disturbed the assembly and disassembly rate of FA, delayed cell adhesion, and compromised the plus-tip dynamics of MTs. In conclusion, our data suggest MCAK act as an important regulator for cell motility and migration by affecting the actin-MT cytoskeleton dynamics and the FA turnover, providing molecular mechanisms by which deregulated MCAK could promote malignant progression and metastasis of tumor cells.
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Affiliation(s)
- Ha Hyung Moon
- Obstetrics and Prenatal Medicine, Department of Gynecology and Obstetrics, University Hospital Frankfurt, J. W. Goethe-University Frankfurt, Theodor-Stern-Kai 7, D-60590 Frankfurt, Germany; (H.H.M.); (N.-N.K.); (A.F.); (S.R.); (C.S.); (F.L.); (J.Y.)
| | - Nina-Naomi Kreis
- Obstetrics and Prenatal Medicine, Department of Gynecology and Obstetrics, University Hospital Frankfurt, J. W. Goethe-University Frankfurt, Theodor-Stern-Kai 7, D-60590 Frankfurt, Germany; (H.H.M.); (N.-N.K.); (A.F.); (S.R.); (C.S.); (F.L.); (J.Y.)
| | - Alexandra Friemel
- Obstetrics and Prenatal Medicine, Department of Gynecology and Obstetrics, University Hospital Frankfurt, J. W. Goethe-University Frankfurt, Theodor-Stern-Kai 7, D-60590 Frankfurt, Germany; (H.H.M.); (N.-N.K.); (A.F.); (S.R.); (C.S.); (F.L.); (J.Y.)
| | - Susanne Roth
- Obstetrics and Prenatal Medicine, Department of Gynecology and Obstetrics, University Hospital Frankfurt, J. W. Goethe-University Frankfurt, Theodor-Stern-Kai 7, D-60590 Frankfurt, Germany; (H.H.M.); (N.-N.K.); (A.F.); (S.R.); (C.S.); (F.L.); (J.Y.)
| | - Dorothea Schulte
- Institute of Neurology (Edinger Institute), University Hospital Frankfurt, J. W. Goethe University, D-60528 Frankfurt, Germany;
| | - Christine Solbach
- Obstetrics and Prenatal Medicine, Department of Gynecology and Obstetrics, University Hospital Frankfurt, J. W. Goethe-University Frankfurt, Theodor-Stern-Kai 7, D-60590 Frankfurt, Germany; (H.H.M.); (N.-N.K.); (A.F.); (S.R.); (C.S.); (F.L.); (J.Y.)
| | - Frank Louwen
- Obstetrics and Prenatal Medicine, Department of Gynecology and Obstetrics, University Hospital Frankfurt, J. W. Goethe-University Frankfurt, Theodor-Stern-Kai 7, D-60590 Frankfurt, Germany; (H.H.M.); (N.-N.K.); (A.F.); (S.R.); (C.S.); (F.L.); (J.Y.)
| | - Juping Yuan
- Obstetrics and Prenatal Medicine, Department of Gynecology and Obstetrics, University Hospital Frankfurt, J. W. Goethe-University Frankfurt, Theodor-Stern-Kai 7, D-60590 Frankfurt, Germany; (H.H.M.); (N.-N.K.); (A.F.); (S.R.); (C.S.); (F.L.); (J.Y.)
| | - Andreas Ritter
- Obstetrics and Prenatal Medicine, Department of Gynecology and Obstetrics, University Hospital Frankfurt, J. W. Goethe-University Frankfurt, Theodor-Stern-Kai 7, D-60590 Frankfurt, Germany; (H.H.M.); (N.-N.K.); (A.F.); (S.R.); (C.S.); (F.L.); (J.Y.)
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7
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Wolf DB, Maier D, Nagel AC. Nucleo-cytoplasmic shuttling of murine RBPJ by Hairless protein matches that of Su(H) protein in the model system Drosophila melanogaster. Hereditas 2021; 158:11. [PMID: 33775255 PMCID: PMC8006372 DOI: 10.1186/s41065-021-00175-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 03/15/2021] [Indexed: 11/16/2022] Open
Abstract
Abstract CSL transcription factors are central to signal transduction in the highly conserved Notch signaling pathway. CSL acts as a molecular switch: depending on the cofactors recruited, CSL induces either activation or repression of Notch target genes. Unexpectedly, CSL depends on its cofactors for nuclear entry, despite its role as gene regulator. In Drosophila, the CSL homologue Suppressor of Hairless (Su(H)), recruits Hairless (H) for repressor complex assembly, and eventually for nuclear import. We recently found that Su(H) is subjected to a dynamic nucleo-cytoplasmic shuttling, thereby strictly following H subcellular distribution. Hence, regulation of nuclear availability of Su(H) by H may represent a new layer of control of Notch signaling activity. Here we extended this work on the murine CSL homologue RBPJ. Using a ‘murinized’ fly model bearing RBPJwt in place of Su(H) at the endogenous locus we demonstrate that RBPJ protein likewise follows H subcellular distribution. For example, overexpression of a H*NLS3 protein variant defective of nuclear import resulted in a cytosolic localization of RBPJ protein, whereas the overexpression of a H*NES protein variant defective in the nuclear export signal caused the accumulation of RBPJ protein in the nucleus. Evidently, RBPJ is exported from the nucleus as well. Overall these data demonstrate that in our fly model, RBPJ is subjected to H-mediated nucleo-cytoplasmic shuttling as is Su(H). These data raise the possibility that nuclear availability of mammalian CSL proteins is likewise restricted by cofactors, and may hence present a more general mode of regulating Notch signaling activity. Graphical abstract ![]()
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Affiliation(s)
- Dorina B Wolf
- Department of General Genetics (190g), University of Hohenheim, Garbenstr. 30, 70599, Stuttgart, Germany
| | - Dieter Maier
- Department of General Genetics (190g), University of Hohenheim, Garbenstr. 30, 70599, Stuttgart, Germany
| | - Anja C Nagel
- Department of General Genetics (190g), University of Hohenheim, Garbenstr. 30, 70599, Stuttgart, Germany.
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8
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Ritter A, Safdar BK, Jasmer B, Kreis NN, Friemel A, Roth S, Solbach C, Louwen F, Yuan J. The Function of Oncogene B-Cell Lymphoma 6 in the Regulation of the Migration and Invasion of Trophoblastic Cells. Int J Mol Sci 2020; 21:ijms21218393. [PMID: 33182312 PMCID: PMC7664908 DOI: 10.3390/ijms21218393] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 11/04/2020] [Accepted: 11/05/2020] [Indexed: 12/14/2022] Open
Abstract
Human placentation is a highly invasive process. Deficiency in the invasiveness of trophoblasts is associated with a spectrum of gestational diseases, such as preeclampsia (PE). The oncogene B-cell lymphoma 6 (BCL6) is involved in the migration and invasion of various malignant cells. Intriguingly, its expression is deregulated in preeclamptic placentas. We have reported that BCL6 is required for the proliferation, survival, fusion, and syncytialization of trophoblasts. In the present work, we show that the inhibition of BCL6, either by its gene silencing or by using specific small molecule inhibitors, impairs the migration and invasion of trophoblastic cells, by reducing cell adhesion and compromising the dynamics of the actin cytoskeleton. Moreover, the suppression of BCL6 weakens the signals of the phosphorylated focal adhesion kinase, Akt/protein kinase B, and extracellular regulated kinase 1/2, accompanied by more stationary, but less migratory, cells. Interestingly, transcriptomic analyses reveal that a small interfering RNA-induced reduction of BCL6 decreases the levels of numerous genes, such as p21 activated kinase 1, myosin light chain kinase, and gamma actin related to cell adhesion, actin dynamics, and cell migration. These data suggest BCL6 as a crucial player in the migration and invasion of trophoblasts in the early stages of placental development through the regulation of various genes associated with the migratory machinery.
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Affiliation(s)
- Andreas Ritter
- Correspondence: (A.R.); (J.Y.); Tel.: +49-69-6301-83297 (A.R.); +49-69-6301-5819 (J.Y.)
| | | | | | | | | | | | | | | | - Juping Yuan
- Correspondence: (A.R.); (J.Y.); Tel.: +49-69-6301-83297 (A.R.); +49-69-6301-5819 (J.Y.)
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9
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Wang S, Wang R, Li GQ, Cho JL, Deng Y, Li Y. Myosin light chain kinase mediates intestinal barrier dysfunction following simulated microgravity based on proteomic strategy. J Proteomics 2020; 231:104001. [PMID: 33035716 DOI: 10.1016/j.jprot.2020.104001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 08/25/2020] [Accepted: 09/29/2020] [Indexed: 01/30/2023]
Abstract
Microgravity induces injury of intestinal barrier. However, the underlying mechanism remains unclear. The present study aimed to investigate the pathological change of intestinal mucosa induced by long term simulated microgravity and to explore its etiological mechanism using a proteomic approach. The well accepted tail-suspended rat model was used to simulate microgravity. The damage of rat small intestine was evaluated via histological and molecular test, and a label-free comparative proteomic strategy was used to determine the molecular mechanism. Simulated microgravity for 21 days damaged intestine barrier with decreased numbers of the goblet cells, large intercellular space, and down-regulated adhesion molecules, accompanied by increased intestinal permeability. Proteomic analysis identified 416 differentially expressed proteins and showed simulated microgravity dramatically down-regulated the adhesion molecules and deteriorated several pathways for metabolism, focal adhesion, and regulation of actin cytoskeleton. Western-blot analysis confirmed that myosin regulatory light chain (MLC) 12B was significantly down-regulated, while rho-associated protein kinase, myosin light chain kinase (MLCK), and phosphorylated MLC were dramatically up-regulated. Taken together, these data reveal that down-regulation of adhesion molecules and MLCK dependent up-regulation MLC phosphorylation mediate intestinal barrier dysfunction during simulated microgravity injury. Our results also indicate that regulation of epithelial MLCK is a potential target for the therapeutic treatment of microgravity injury.
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Affiliation(s)
- Shibo Wang
- School of Life Science, Beijing Institute of Technology, No.5 Zhongguangcun South Street, Haidian District, Beijing 100081, China
| | - Rui Wang
- School of Life Science, Beijing Institute of Technology, No.5 Zhongguangcun South Street, Haidian District, Beijing 100081, China
| | - George Q Li
- NICM Health Research Institute, Western Sydney University, Penrith, NSW 2751, Australia
| | - Jun-Lae Cho
- Centre for Advanced Food Enginomics, School of Chemical and Biomolecular Engineering, University of Sydney, NSW 2006, Australia
| | - Yulin Deng
- School of Life Science, Beijing Institute of Technology, No.5 Zhongguangcun South Street, Haidian District, Beijing 100081, China
| | - Yujuan Li
- School of Life Science, Beijing Institute of Technology, No.5 Zhongguangcun South Street, Haidian District, Beijing 100081, China.
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10
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Liu H, Seynhaeve ALB, Brouwer RWW, van IJcken WFJ, Yang L, Wang Y, Chang Z, ten Hagen TLM. CREPT Promotes Melanoma Progression Through Accelerated Proliferation and Enhanced Migration by RhoA-Mediated Actin Filaments and Focal Adhesion Formation. Cancers (Basel) 2019; 12:cancers12010033. [PMID: 31877646 PMCID: PMC7016535 DOI: 10.3390/cancers12010033] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 12/10/2019] [Accepted: 12/14/2019] [Indexed: 12/24/2022] Open
Abstract
Melanoma is one of the most aggressive cancers, and patients with distant metastases have dire outcomes. We observed previously that melanoma progression is driven by a high migratory potential of melanoma cells, which survive and proliferate under harsh environmental conditions. In this study, we report that CREPT (cell-cycle related and expression-elevated protein in tumor), an oncoprotein highly expressed in other cancers, is overexpressed in melanoma cells but not melanocytes. Overexpression of CREPT stimulates cell proliferation, migration, and invasion in several melanoma cell lines. Further, we show that CREPT enhances melanoma progression through upregulating and activating Ras homolog family member A (RhoA)-induced actin organization and focal adhesion assembly. Our study reveals a novel role of CREPT in promoting melanoma progression. Targeting CREPT may be a promising strategy for melanoma treatment.
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Affiliation(s)
- Hui Liu
- Laboratory of Experimental Oncology, Department of Pathology, Erasmus University Medical Center, 3015 GD Rotterdam, The Netherlands
| | - Ann L. B. Seynhaeve
- Laboratory of Experimental Oncology, Department of Pathology, Erasmus University Medical Center, 3015 GD Rotterdam, The Netherlands
| | - Rutger W. W. Brouwer
- Center for Biomics, Erasmus University Medical Center, 3015 GD Rotterdam, The Netherlands
| | | | - Liu Yang
- State Key Laboratory of Membrane Biology, School of Medicine, National Engineering Laboratory for Anti-Tumor Therapeutics, Tsinghua University, Beijing 100084, China
| | - Yinyin Wang
- State Key Laboratory of Membrane Biology, School of Medicine, National Engineering Laboratory for Anti-Tumor Therapeutics, Tsinghua University, Beijing 100084, China
| | - Zhijie Chang
- State Key Laboratory of Membrane Biology, School of Medicine, National Engineering Laboratory for Anti-Tumor Therapeutics, Tsinghua University, Beijing 100084, China
- Correspondence: (Z.C.); (T.L.M.t.H.)
| | - Timo L. M. ten Hagen
- Laboratory of Experimental Oncology, Department of Pathology, Erasmus University Medical Center, 3015 GD Rotterdam, The Netherlands
- Correspondence: (Z.C.); (T.L.M.t.H.)
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RITA Is Expressed in Trophoblastic Cells and Is Involved in Differentiation Processes of the Placenta. Cells 2019; 8:cells8121484. [PMID: 31766533 PMCID: PMC6953008 DOI: 10.3390/cells8121484] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 11/13/2019] [Accepted: 11/19/2019] [Indexed: 12/16/2022] Open
Abstract
Preeclampsia (PE) remains a leading cause of maternal and perinatal mortality and morbidity worldwide. Its pathogenesis has not been fully elucidated and no causal therapy is currently available. It is of clinical relevance to decipher novel molecular biomarkers. RITA (RBP-J (recombination signal binding protein J)-interacting and tubulin-associated protein) has been identified as a negative modulator of the Notch pathway and as a microtubule-associated protein important for cell migration and invasion. In the present work, we have systematically studied RITA’s expression in primary placental tissues from patients with early- and late-onset PE as well as in various trophoblastic cell lines. RITA is expressed in primary placental tissues throughout gestation, especially in proliferative villous cytotrophoblasts, in the terminally differentiated syncytiotrophoblast, and in migrating extravillous trophoblasts. RITA’s messenger RNA (mRNA) level is decreased in primary tissue samples from early-onset PE patients. The deficiency of RITA impairs the motility and invasion capacity of trophoblastic cell lines, and compromises the fusion ability of trophoblast-derived choriocarcinoma cells. These data suggest that RITA may play important roles in the development of the placenta and possibly in the pathogenesis of PE.
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Subcutaneous and Visceral Adipose-Derived Mesenchymal Stem Cells: Commonality and Diversity. Cells 2019; 8:cells8101288. [PMID: 31640218 PMCID: PMC6830091 DOI: 10.3390/cells8101288] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 10/16/2019] [Accepted: 10/17/2019] [Indexed: 12/18/2022] Open
Abstract
Adipose-derived mesenchymal stem cells (ASCs) are considered to be a useful tool for regenerative medicine, owing to their capabilities in differentiation, self-renewal, and immunomodulation. These cells have become a focus in the clinical setting due to their abundance and easy isolation. However, ASCs from different depots are not well characterized. Here, we analyzed the functional similarities and differences of subcutaneous and visceral ASCs. Subcutaneous ASCs have an extraordinarily directed mode of motility and a highly dynamic focal adhesion turnover, even though they share similar surface markers, whereas visceral ASCs move in an undirected random pattern with more stable focal adhesions. Visceral ASCs have a higher potential to differentiate into adipogenic and osteogenic cells when compared to subcutaneous ASCs. In line with these observations, visceral ASCs demonstrate a more active sonic hedgehog pathway that is linked to a high expression of cilia/differentiation related genes. Moreover, visceral ASCs secrete higher levels of inflammatory cytokines interleukin-6, interleukin-8, and tumor necrosis factor α relative to subcutaneous ASCs. These findings highlight, that both ASC subpopulations share multiple cellular features, but significantly differ in their functions. The functional diversity of ASCs depends on their origin, cellular context and surrounding microenvironment within adipose tissues. The data provide important insight into the biology of ASCs, which might be useful in choosing the adequate ASC subpopulation for regenerative therapies.
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