1
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Ono S. Segregated localization of two calponin-related proteins within sarcomeric thin filaments in Caenorhabditis elegans striated muscle. Cytoskeleton (Hoboken) 2024; 81:127-140. [PMID: 37792405 DOI: 10.1002/cm.21794] [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: 03/01/2023] [Revised: 09/14/2023] [Accepted: 09/15/2023] [Indexed: 10/05/2023]
Abstract
The calponin family proteins are expressed in both muscle and non-muscle cells and involved in the regulation of cytoskeletal dynamics and cell contractility. In the nematode Caenorhabditis elegans, UNC-87 and CLIK-1 are calponin-related proteins with 42% identical amino acid sequences containing seven calponin-like motifs. Genetic studies demonstrated that UNC-87 and CLIK-1 have partially redundant function in regulating actin cytoskeletal organization in striated and non-striated muscle cells. However, biochemical studies showed that UNC-87 and CLIK-1 are different in their ability to bundle actin filaments. In this study, I extended comparison between UNC-87 and CLIK-1 and found additional differences in vitro and in vivo. Although UNC-87 and CLIK-1 bound to actin filaments similarly, UNC-87, but not CLIK-1, bound to myosin and inhibited actomyosin ATPase in vitro. In striated muscle, UNC-87 and CLIK-1 were segregated into different subregions within sarcomeric actin filaments. CLIK-1 was concentrated near the actin pointed ends, whereas UNC-87 was enriched toward the actin barbed ends. Restricted localization of UNC-87 was not altered in a clik-1-null mutant, suggesting that their segregated localization is not due to competition between the two related proteins. These results suggest that the two calponin-related proteins have both common and distinct roles in regulating actin filaments.
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Affiliation(s)
- Shoichiro Ono
- Departments of Pathology and Cell Biology, Emory University School of Medicine, Atlanta, Georgia, USA
- Winship Cancer Institute, Emory University School of Medicine, Atlanta, Georgia, USA
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2
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Hsieh TB, Jin JP. Evolution and function of calponin and transgelin. Front Cell Dev Biol 2023; 11:1206147. [PMID: 37363722 PMCID: PMC10285543 DOI: 10.3389/fcell.2023.1206147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Accepted: 05/25/2023] [Indexed: 06/28/2023] Open
Abstract
Calponin and transgelin (originally named SM22) are homologous cytoskeleton proteins that regulate actin-activated myosin motor functions in smooth muscle contraction and non-muscle cell motility during adhesion, migration, proliferation, phagocytosis, wound healing, and inflammatory responses. They are abundant cytoskeleton proteins present in multiple cell types whereas their physiological functions remain to be fully established. This focused review summarizes the evolution of genes encoding calponin and transgelin and their isoforms and discusses the structural similarity and divergence in vertebrate and invertebrate species in the context of functions in regulating cell motility. As the first literature review focusing on the evolution of the calponin-transgelin family of proteins in relevance to their structure-function relationship, the goal is to outline a foundation of current knowledge for continued investigations to understand the biological functions of calponin and transgelin in various cell types during physiological and pathological processes.
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Affiliation(s)
- Tzu-Bou Hsieh
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, United States
| | - J.-P. Jin
- Department of Physiology and Biophysics, University of Illinois at Chicago College of Medicine, Chicago, IL, United States
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3
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Leonov S, Inyang O, Achkasov K, Bogdan E, Kontareva E, Chen Y, Fu Y, Osipov AN, Pustovalova M, Merkher Y. Proteomic Markers for Mechanobiological Properties of Metastatic Cancer Cells. Int J Mol Sci 2023; 24:ijms24054773. [PMID: 36902201 PMCID: PMC10003476 DOI: 10.3390/ijms24054773] [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: 12/12/2022] [Revised: 01/26/2023] [Accepted: 02/17/2023] [Indexed: 03/06/2023] Open
Abstract
The major cause (more than 90%) of all cancer-related deaths is metastasis, thus its prediction can critically affect the survival rate. Metastases are currently predicted by lymph-node status, tumor size, histopathology and genetic testing; however, all these are not infallible, and obtaining results may require weeks. The identification of new potential prognostic factors will be an important source of risk information for the practicing oncologist, potentially leading to enhanced patient care through the proactive optimization of treatment strategies. Recently, the new mechanobiology-related techniques, independent of genetics, based on the mechanical invasiveness of cancer cells (microfluidic, gel indentation assays, migration assays etc.), demonstrated a high success rate for the detection of tumor cell metastasis propensity. However, they are still far away from clinical implementation due to complexity. Hence, the exploration of novel markers related to the mechanobiological properties of tumor cells may have a direct impact on the prognosis of metastasis. Our concise review deepens our knowledge of the factors that regulate cancer cell mechanotype and invasion, and incites further studies to develop therapeutics that target multiple mechanisms of invasion for improved clinical benefit. It may open a new clinical dimension that will improve cancer prognosis and increase the effectiveness of tumor therapies.
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Affiliation(s)
- Sergey Leonov
- School of Biological and Medical Physics, Moscow Institute of Physics and Technology, 141700 Dolgoprudny, Moscow Region, Russia
- Institute of Cell Biophysics, Russian Academy of Sciences, 142290 Pushchino, Moscow Region, Russia
| | - Olumide Inyang
- School of Biological and Medical Physics, Moscow Institute of Physics and Technology, 141700 Dolgoprudny, Moscow Region, Russia
| | - Konstantin Achkasov
- School of Biological and Medical Physics, Moscow Institute of Physics and Technology, 141700 Dolgoprudny, Moscow Region, Russia
| | - Elizaveta Bogdan
- School of Biological and Medical Physics, Moscow Institute of Physics and Technology, 141700 Dolgoprudny, Moscow Region, Russia
| | - Elizaveta Kontareva
- School of Biological and Medical Physics, Moscow Institute of Physics and Technology, 141700 Dolgoprudny, Moscow Region, Russia
| | - Yongheng Chen
- Department of Oncology, NHC Key Laboratory of Cancer Proteomics & State Local Joint Engineering Laboratory for Anticancer Drugs, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Ying Fu
- Department of Oncology, NHC Key Laboratory of Cancer Proteomics & State Local Joint Engineering Laboratory for Anticancer Drugs, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Andreyan N. Osipov
- State Research Center—Burnasyan Federal Medical Biophysical Center of Federal Medical-Biological Agency, 123098 Moscow, Russia
- N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, 119991 Moscow, Russia
- Correspondence:
| | - Margarita Pustovalova
- School of Biological and Medical Physics, Moscow Institute of Physics and Technology, 141700 Dolgoprudny, Moscow Region, Russia
- State Research Center—Burnasyan Federal Medical Biophysical Center of Federal Medical-Biological Agency, 123098 Moscow, Russia
| | - Yulia Merkher
- School of Biological and Medical Physics, Moscow Institute of Physics and Technology, 141700 Dolgoprudny, Moscow Region, Russia
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4
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Rackow AR, Judge JL, Woeller CF, Sime PJ, Kottmann RM. miR-338-3p blocks TGFβ-induced myofibroblast differentiation through the induction of PTEN. Am J Physiol Lung Cell Mol Physiol 2022; 322:L385-L400. [PMID: 34986654 PMCID: PMC8884407 DOI: 10.1152/ajplung.00251.2021] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a chronic interstitial lung disease. The pathogenesis of IPF is not completely understood. However, numerous genes are associated with the development and progression of pulmonary fibrosis, indicating there is a significant genetic component to the pathogenesis of IPF. Epigenetic influences on the development of human disease, including pulmonary fibrosis, remain to be fully elucidated. In this paper, we identify miR-338-3p as a microRNA severely downregulated in the lungs of patients with pulmonary fibrosis and in experimental models of pulmonary fibrosis. Treatment of primary human lung fibroblasts with miR-338-3p inhibits myofibroblast differentiation and matrix protein production. Published and proposed targets of miR-338-3p such as TGFβ receptor 1, MEK/ERK 1/2, Cdk4, and Cyclin D are also not responsible for the regulation of pulmonary fibroblast behavior by miR-338-3p. miR-338-3p inhibits myofibroblast differentiation by preventing TGFβ-mediated downregulation of phosphatase and tensin homolog (PTEN), a known antifibrotic mediator.
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Affiliation(s)
- Ashley R. Rackow
- 1Lung Biology and Disease Program, University of Rochester Medical Center Rochester, Rochester, New York,2Department of Environmental Medicine, University of Rochester Medical Center Rochester, Rochester, New York
| | | | - Collynn F. Woeller
- 2Department of Environmental Medicine, University of Rochester Medical Center Rochester, Rochester, New York,4Department of Ophthalmology, University of Rochester Medical Center, Rochester, New York
| | - Patricia J. Sime
- 5Division of Pulmonary Disease and Critical Care Medicine, Virginia Commonwealth University, Richmond, Virginia
| | - Robert M. Kottmann
- 1Lung Biology and Disease Program, University of Rochester Medical Center Rochester, Rochester, New York,2Department of Environmental Medicine, University of Rochester Medical Center Rochester, Rochester, New York,6Division of Pulmonary Disease and Critical Care Medicine, University of Rochester Medical Center, Rochester, New York
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5
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Link PA, Choi KM, Diaz Espinosa AM, Jones DL, Gao AY, Haak AJ, Tschumperlin DJ. Combined control of the fibroblast contractile program by YAP and TAZ. Am J Physiol Lung Cell Mol Physiol 2022; 322:L23-L32. [PMID: 34755530 PMCID: PMC8721907 DOI: 10.1152/ajplung.00210.2021] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Yes-associated protein (YAP) and transcriptional coactivator with PDZ-binding motif (TAZ) are transcription cofactors implicated in the contractile and profibrotic activation of fibroblasts. Fibroblast contractile function is important in alveologenesis and in lung wound healing and fibrosis. As paralogs, YAP and TAZ may have independent or redundant roles in regulating transcriptional programs and contractile function. Using IMR-90 lung fibroblasts, microarray analysis, and traction microscopy, we tested whether independent YAP or TAZ knockdown alone was sufficient to limit transcriptional activation and contraction in vitro. Our results demonstrate limited effects of knockdown of either YAP or TAZ alone, with more robust transcriptional and functional effects observed with combined knockdown, consistent with cooperation or redundancy of YAP and TAZ in transforming growth factor β1 (TGFβ1)-induced fibroblast activation and contractile force generation. The transcriptional responses to combined YAP/TAZ knockdown were focused on a relatively small subset of genes with prominent overrepresentation of genes implicated in contraction and migration. To explore potential disease relevance of our findings, we tested primary human lung fibroblasts isolated from patients with idiopathic pulmonary fibrosis and confirmed that YAP and TAZ combined knockdown reduced the expression of three cytoskeletal genes, ACTA2, CNN1, and TAGLN. We then compared the contribution of these genes, along with YAP and TAZ, to contractile function. Combined knockdown targeting YAP/TAZ was more effective than targeting any of the individual cytoskeletal genes in reducing contractile function. Together, our results demonstrate that YAP and TAZ combine to regulate a multigene program that is essential to fibroblast contractile function.
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Affiliation(s)
- Patrick A. Link
- 1Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine and Science, Rochester, Minnesota
| | - Kyoung Moo Choi
- 1Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine and Science, Rochester, Minnesota
| | - Ana M. Diaz Espinosa
- 1Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine and Science, Rochester, Minnesota
| | - Dakota L. Jones
- 1Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine and Science, Rochester, Minnesota
| | - Ashley Y. Gao
- 2Department of Ophthalmology, Mayo Clinic College of Medicine and Science, Rochester, Minnesota
| | - Andrew J. Haak
- 1Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine and Science, Rochester, Minnesota
| | - Daniel J. Tschumperlin
- 1Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine and Science, Rochester, Minnesota
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6
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Paskal W, Kopka M, Stachura A, Paskal AM, Pietruski P, Pełka K, Woessner AE, Quinn KP, Galus R, Wejman J, Włodarski P. Single Dose of N-Acetylcysteine in Local Anesthesia Increases Expression of HIF1α, MAPK1, TGFβ1 and Growth Factors in Rat Wound Healing. Int J Mol Sci 2021; 22:8659. [PMID: 34445365 PMCID: PMC8395485 DOI: 10.3390/ijms22168659] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 08/03/2021] [Accepted: 08/10/2021] [Indexed: 01/13/2023] Open
Abstract
In this study, we aimed to investigate the influence of N-acetylcysteine (NAC) on the gene expression profile, neoangiogenesis, neutrophils and macrophages in a rat model of incisional wounds. Before creating wounds on the backs of 24 Sprague-Dawley rats, intradermal injections were made. Lidocaine-epinephrin solutions were supplemented with 0.015%, 0.03% or 0.045% solutions of NAC, or nothing (control group). Scars were harvested on the 3rd, 7th, 14th and 60th day post-surgery. We performed immunohistochemical staining in order to visualize macrophages (anti-CD68), neutrophils (anti-MPO) and newly formed blood vessels (anti-CD31). Additionally, RT-qPCR was used to measure the relative expression of 88 genes involved in the wound healing process. On the 14th day, the number of cells stained with anti-CD68 and anti-CD31 antibodies was significantly larger in the tissues treated with 0.03% NAC compared with the control. Among the selected genes, 52 were upregulated and six were downregulated at different time points. Interestingly, NAC exerted a significant effect on the expression of 45 genes 60 days after its administration. In summation, a 0.03% NAC addition to the pre-incisional anesthetic solution improves neovasculature and increases the macrophages' concentration at the wound site on the 14th day, as well as altering the expression of numerous genes that are responsible for the regenerative processes.
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Affiliation(s)
- Wiktor Paskal
- Department of Methodology, Medical University of Warsaw, 02-091 Warsaw, Poland; (M.K.); (A.S.); (A.M.P.); (K.P.); (P.W.)
| | - Michał Kopka
- Department of Methodology, Medical University of Warsaw, 02-091 Warsaw, Poland; (M.K.); (A.S.); (A.M.P.); (K.P.); (P.W.)
| | - Albert Stachura
- Department of Methodology, Medical University of Warsaw, 02-091 Warsaw, Poland; (M.K.); (A.S.); (A.M.P.); (K.P.); (P.W.)
- Doctoral School, Medical University of Warsaw, 02-091 Warsaw, Poland
| | - Adriana M. Paskal
- Department of Methodology, Medical University of Warsaw, 02-091 Warsaw, Poland; (M.K.); (A.S.); (A.M.P.); (K.P.); (P.W.)
| | - Piotr Pietruski
- Centre of Postgraduate Medical Education, Department of Replantation and Reconstructive Surgery, Gruca Teaching Hospital, 05-400 Otwock, Poland;
| | - Kacper Pełka
- Department of Methodology, Medical University of Warsaw, 02-091 Warsaw, Poland; (M.K.); (A.S.); (A.M.P.); (K.P.); (P.W.)
| | - Alan E. Woessner
- Department of Biomedical Engineering, University of Arkansas, Fayetteville, AR 72701, USA; (A.E.W.); (K.P.Q.)
| | - Kyle P. Quinn
- Department of Biomedical Engineering, University of Arkansas, Fayetteville, AR 72701, USA; (A.E.W.); (K.P.Q.)
| | - Ryszard Galus
- Department of Histology and Embryology, Medical University of Warsaw, 02-091 Warsaw, Poland;
| | - Jarosław Wejman
- Department of Pathology, Centre of Postgraduate Medical Education, 00-416 Warsaw, Poland;
| | - Paweł Włodarski
- Department of Methodology, Medical University of Warsaw, 02-091 Warsaw, Poland; (M.K.); (A.S.); (A.M.P.); (K.P.); (P.W.)
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7
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Tsuji-Tamura K, Morino-Koga S, Suzuki S, Ogawa M. The canonical smooth muscle cell marker TAGLN is present in endothelial cells and is involved in angiogenesis. J Cell Sci 2021; 134:jcs254920. [PMID: 34338296 DOI: 10.1242/jcs.254920] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 06/30/2021] [Indexed: 12/24/2022] Open
Abstract
Elongation of vascular endothelial cells (ECs) is an important process in angiogenesis; however, the molecular mechanisms remain unknown. The actin-crosslinking protein TAGLN (transgelin, also known as SM22 or SM22α) is abundantly expressed in smooth muscle cells (SMCs) and is widely used as a canonical marker for this cell type. In the course of studies using mouse embryonic stem cells (ESCs) carrying an Tagln promoter-driven fluorescence marker, we noticed activation of the Tagln promoter during EC elongation. Tagln promoter activation co-occurred with EC elongation in response to vascular endothelial growth factor A (VEGF-A). Inhibition of phosphoinositide 3-kinase (PI3K)-Akt signaling and mTORC1 also induced EC elongation and Tagln promoter activation. Human umbilical vein endothelial cells (HUVECs) elongated, activated the TAGLN promoter and increased TAGLN transcripts in an angiogenesis model. Genetic disruption of TAGLN augmented angiogenic behaviors of HUVECs, as did the disruption of TAGLN2 and TAGLN3 genes. Tagln expression was found in ECs in mouse embryos. Our results identify TAGLN as a putative regulator of angiogenesis whose expression is activated in elongating ECs. This finding provides insight into the cytoskeletal regulation of EC elongation and an improved understanding of the molecular mechanisms underlying the regulation of angiogenesis.
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Affiliation(s)
- Kiyomi Tsuji-Tamura
- Department of Cell Differentiation, Institute of Molecular Embryology and Genetics, Kumamoto University, 2-2-1 Honjo, Kumamoto 860-0811, Japan
| | - Saori Morino-Koga
- Department of Cell Differentiation, Institute of Molecular Embryology and Genetics, Kumamoto University, 2-2-1 Honjo, Kumamoto 860-0811, Japan
| | - Shingo Suzuki
- Support Section for Education and Research, Faculty of Dental Medicine, Hokkaido University, Kita 13, Nishi 7, Kita-ku, Sapporo 060-8586, Japan
| | - Minetaro Ogawa
- Department of Cell Differentiation, Institute of Molecular Embryology and Genetics, Kumamoto University, 2-2-1 Honjo, Kumamoto 860-0811, Japan
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8
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Qian A, Hsieh TB, Hossain MM, Lin JJC, Jin JP. A rapid degradation of calponin 2 is required for cytokinesis. Am J Physiol Cell Physiol 2021; 321:C355-C368. [PMID: 34133238 DOI: 10.1152/ajpcell.00569.2020] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Calponin 2 is an actin cytoskeleton-associated protein and plays a role in regulating cell motility-related functions such as phagocytosis, migration, and division. We previously reported that overexpression of calponin 2 inhibits the rate of cell proliferation. To investigate the underlying mechanism, our present study found that the levels of endogenous calponin 2 in NIH3T3 and HEK293 cells rapidly decreased before cell division characterized by an absence at the actin contractile ring. In cells lacking endogenous calponin 2, transfective expression of GFP-fusion calponin 2 inhibited cell proliferation similar to that of nonfusion calponin 2. Fluorescent imaging studies of mitotic cells indicated that a proper level of calponin 2 expression and effective degradation during cytokinesis are necessary for normal cell division. Computer-assisted dynamic image analysis of dividing cells revealed that overexpression of calponin 2 significantly affects motility and shape behaviors of cells only on the interval from the start of anaphase to the start of cytokinesis, i.e., the pre-cytokinesis phase, but not on the interval from the start of cytokinesis to 50% completion of cytokinesis. The pre-cytokinesis degradation of calponin 2 was attenuated by MG132 inhibition of the ubiquitin proteasome and inhibitor of protein kinase C (PKC), suggesting that PKC phosphorylation-triggered degradation of calponin 2 could determine the rate of cytokinesis. The novel role of calponin 2 in regulating the rate of cytokinesis may be targeted for therapeutic applications such as in an inhibition of malignant tumor growth.
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Affiliation(s)
- Airong Qian
- Department of Physiology, Wayne State University School of Medicine, Detroit, Michigan
| | - Tzu-Bou Hsieh
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan
| | - M Moazzem Hossain
- Department of Physiology, Wayne State University School of Medicine, Detroit, Michigan
| | - Jim J-C Lin
- Department of Biological Sciences, University of Iowa, Iowa City, Iowa
| | - J-P Jin
- Department of Physiology, Wayne State University School of Medicine, Detroit, Michigan
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9
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Ono S. Diversification of the calponin family proteins by gene amplification and repeat expansion of calponin-like motifs. Cytoskeleton (Hoboken) 2021; 78:199-205. [PMID: 34333878 PMCID: PMC8958760 DOI: 10.1002/cm.21683] [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: 05/28/2021] [Revised: 07/14/2021] [Accepted: 07/28/2021] [Indexed: 11/10/2022]
Abstract
The calponin family proteins in vertebrates, including calponin and transgelin (also known as SM22 or NP25), regulate actin-myosin interaction and actin filament stability and are involved in regulation of muscle contractility and cell migration. Related proteins are also present in invertebrates and fungi. Animals have multiple genes encoding calponin family proteins with variable molecular features, which are often expressed in the same tissues or cells. However, functional studies of this class of proteins have been reported only in limited species. Through database searches, I found that the calponin family proteins were diversified in animals by gene amplification and repeat expansion of calponin-like (CLIK) motifs, which function as actin-binding sequences. Transgelin-like proteins with a single CLIK motif are the most primitive type and present in fungi and animals. In many animals, additional calponin family proteins containing multiple CLIK motifs, as represented by vertebrate calponins with three CLIK motifs, are present. Interestingly, in several invertebrate species, there are uncharacterized calponin-related proteins with highly expanded repeats of CLIK motifs (up to 23 repeats in mollusks). These variable molecular features of the calponin family proteins may be results of evolutionary adaptation to a broad range of cell biological events.
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Affiliation(s)
- Shoichiro Ono
- Departments of Pathology and Cell Biology, Emory University School of Medicine, Atlanta, Georgia, USA
- Winship Cancer Institute, Emory University School of Medicine, Atlanta, Georgia, USA
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10
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Kim HR, Park JS, Karabulut H, Yasmin F, Jun CD. Transgelin-2: A Double-Edged Sword in Immunity and Cancer Metastasis. Front Cell Dev Biol 2021; 9:606149. [PMID: 33898417 PMCID: PMC8060441 DOI: 10.3389/fcell.2021.606149] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 03/17/2021] [Indexed: 12/12/2022] Open
Abstract
Transgelin-2, a small actin-binding protein, is the only transgelin family member expressed in immune cells. In T and B lymphocytes, transgelin-2 is constitutively expressed, but in antigen-presenting cells, it is significantly upregulated upon lipopolysaccharide stimulation. Transgelin-2 acts as a molecular staple to stabilize the actin cytoskeleton, and it competes with cofilin to bind filamentous (F)-actin. This action may enable immune synapse stabilization during T-cell interaction with cognate antigen-presenting cells. Furthermore, transgelin-2 blocks Arp2/3 complex-nucleated actin branching, which is presumably related to small filopodia formation, enhanced phagocytic function, and antigen presentation. Overall, transgelin-2 is an essential part of the molecular armament required for host defense against neoplasms and infectious diseases. However, transgelin-2 acts as a double-edged sword, as its expression is also essential for a wide range of tumor development, including drug resistance and metastasis. Thus, targeting transgelin-2 can also have a therapeutic advantage for cancer treatment; selectively suppressing transgelin-2 expression may prevent multidrug resistance in cancer chemotherapy. Here, we review newly discovered molecular characteristics of transgelin-2 and discuss clinical applications for cancer and immunotherapy.
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Affiliation(s)
- Hye-Ran Kim
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST), Gwangju, South Korea.,Immune Synapse and Cell Therapy Research Center, Gwangju Institute of Science and Technology (GIST), Gwangju, South Korea
| | - Jeong-Su Park
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST), Gwangju, South Korea.,Immune Synapse and Cell Therapy Research Center, Gwangju Institute of Science and Technology (GIST), Gwangju, South Korea
| | - Hatice Karabulut
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST), Gwangju, South Korea.,Immune Synapse and Cell Therapy Research Center, Gwangju Institute of Science and Technology (GIST), Gwangju, South Korea
| | - Fatima Yasmin
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST), Gwangju, South Korea.,Immune Synapse and Cell Therapy Research Center, Gwangju Institute of Science and Technology (GIST), Gwangju, South Korea
| | - Chang-Duk Jun
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST), Gwangju, South Korea.,Immune Synapse and Cell Therapy Research Center, Gwangju Institute of Science and Technology (GIST), Gwangju, South Korea
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11
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Long Y, Liu R, Song G, Li Q, Cui Z. Establishment and characterization of a cold-sensitive neural cell line from the brain of tilapia (Oreochromis niloticus). JOURNAL OF FISH BIOLOGY 2021; 98:842-854. [PMID: 33258111 DOI: 10.1111/jfb.14637] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 10/19/2020] [Accepted: 11/27/2020] [Indexed: 06/12/2023]
Abstract
The aquaculture of tilapia (Oreochromis sp.) is adversely affected by the sensitivity to cold stress. A large number of genes in tilapia were found to be regulated by cold stress, but their functions and mechanisms in cold tolerance remain largely unknown, partially due to the lack of a suitable in vitro model. An immortal neural cell line designated as tilapia brain neural (TBN) was established from brain tissue of the genetically improved farmed tilapia strain of Nile tilapia (Oreochromis niloticus). The TBN cells show a neuron-like morphology at low density and form a fibroblast-like monolayer at high density. Transcriptome profiling through RNA-sequencing revealed that a total of 15,011 genes were expressed in the TBN cells. The TBN cells express a wide array of marker genes for neural cells. A comparative analysis of the featured genes among the 17 cell clusters isolated from the subventricular zone of mouse brain revealed the highest transcriptome similarity between the TBN cells and the transient amplifying progenitors (TAPs). The TBN cells tolerate relatively high culture temperatures, and the highest growth rate was observed for the cells cultured at 32°C compared with those at 30°C, 28°C and 26°C. Nonetheless, this cell line is cold sensitive. Exposure of the cells to 16°C or lower temperatures significantly decreased cell confluences and induced apoptosis. The TBN cells were more sensitive to cold stress than the ZF4 cells (embryonic zebrafish fibroblasts). Moreover, the TBN cells can be efficiently transfected through electroporation. This study provides an invaluable research tool to understand the nature of cold sensitivity of tilapia and to dissect the function and mechanism of genes in regulating cold tolerance of fish.
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Affiliation(s)
- Yong Long
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
| | - Ran Liu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
- College of Fisheries and Life Science, Dalian Ocean University, Dalian, China
| | - Guili Song
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
| | - Qing Li
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
| | - Zongbin Cui
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
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Raymundo BR, Oh I, Xiu L, Kim C. Transgelin ( TAGLN) Regulates IQGAP1and Alters the Functions of Breast Cancer Cells. B KOREAN CHEM SOC 2020. [DOI: 10.1002/bkcs.12104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Bernardo R. Raymundo
- Department of Biotechnology, College of Life Sciences and Biotechnology Korea University Seoul 136‐701 South Korea
| | - In‐Rok Oh
- Department of Biotechnology, College of Life Sciences and Biotechnology Korea University Seoul 136‐701 South Korea
| | - Ling Xiu
- Department of Biotechnology, College of Life Sciences and Biotechnology Korea University Seoul 136‐701 South Korea
| | - Chan‐Wha Kim
- Department of Biotechnology, College of Life Sciences and Biotechnology Korea University Seoul 136‐701 South Korea
- Division of Life Sciences, College of Life Sciences and Biotechnology Korea University Seoul 136‐701 South Korea
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Jiang Y, Sun Q, Fan M, He J, Zhang X, Xu H, Liao Z. Recombinant transgelin-like protein 1 from Mytilus shell induces formation of CaCO 3 polymorphic crystals in vitro. FEBS Open Bio 2020; 10:2216-2234. [PMID: 32902197 PMCID: PMC7530383 DOI: 10.1002/2211-5463.12972] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 07/31/2020] [Accepted: 09/03/2020] [Indexed: 11/23/2022] Open
Abstract
Transgelin is an actin cross-linking/gelling protein of the calponin family, which is associated with actin stress fibres, cell motility, adhesion and the maintenance of cell morphology. Transgelin-like proteins (TLPs) have also been identified as shell matrix proteins (SMPs) in several mollusc species; however, the functions of TLPs in biomineralization remain unknown. Transgelin-like protein 1 (TLP-1) was previously identified from the shell of Mytilus coruscus as a novel 19 kDa SMP with a calponin homology (CH) domain. To understand the role of TLP-1 in shell formation, the expression level and localization of the TLP-1 gene in biomineralization-related tissues were determined in this study. Furthermore, recombinant TLP-1 was expressed in a prokaryotic expression system with codon optimization, and an anti-rTLP-1 antibody was prepared based on the expressed recombinant TLP-1 (rTLP-1) protein. In vitro, rTLP-1 induced the formation of CaCO3 polymorphic crystals with distinct morphologies and inhibited crystallization rate and crystal interactions. Immunohistochemical, immunofluorescence, and pull-down analyses using the anti-rTLP-1 antibody revealed the specific locations of TLP-1 in biomineralization-related tissues and shell myostracum layer, and suggested the existence of a possible TLP-1 interaction network in the shell matrix. Our results are beneficial for understanding the functions of TLP-1, particularly through its CH domain, during shell mineralization.
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Affiliation(s)
- Yuting Jiang
- Laboratory of Marine Biology Protein EngineeringMarine Science and Technical CollegeZhejiang Ocean UniversityZhoushan CityChina
| | - Qi Sun
- Laboratory of Marine Biology Protein EngineeringMarine Science and Technical CollegeZhejiang Ocean UniversityZhoushan CityChina
| | - Meihua Fan
- Laboratory of Marine Biology Protein EngineeringMarine Science and Technical CollegeZhejiang Ocean UniversityZhoushan CityChina
| | - Jianyu He
- Department of BiologyUniversity of PisaCoNISMaItaly
| | - Xiaolin Zhang
- Laboratory of Marine Biology Protein EngineeringMarine Science and Technical CollegeZhejiang Ocean UniversityZhoushan CityChina
| | - Huanzhi Xu
- Laboratory of Marine Biology Protein EngineeringMarine Science and Technical CollegeZhejiang Ocean UniversityZhoushan CityChina
| | - Zhi Liao
- Laboratory of Marine Biology Protein EngineeringMarine Science and Technical CollegeZhejiang Ocean UniversityZhoushan CityChina
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14
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Abolhasani S, Rajabibazl M, Khani MM, Parandakh A, Hoseinpoor R. The cooperative effects of micro-grooved topography and TGF-β1 on the vascular smooth muscle cell contractile protein expression of the mesenchymal stem cells. Differentiation 2020; 115:22-29. [PMID: 32784008 DOI: 10.1016/j.diff.2020.06.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 06/14/2020] [Accepted: 06/25/2020] [Indexed: 01/11/2023]
Abstract
Cell morphological changes induced by micro-grooved topography have been shown to be an important regulator of smooth muscle (SM) differentiation of mesenchymal stem cells (MSCs). In addition to the micro-grooved topography, transforming growth factor-β1 (TGF-β1) can also modulate MSCs differentiation towards smooth muscle cells (SMCs) through alterations in cell morphological characteristics. Thus, it can be hypothesized that substrate topography and TGF-β1 may interact to facilitate differentiation of MSCs into SMCs. In this study, we investigated the time-course cooperative effects of substrate topography and TGF-β1 in the regulation of SM differentiation of human MSCs. Western blotting, followed by image analysis, was performed to assess the protein expression of α-actin, h1-calponin and gelsolin. Three-way analysis of variance was employed to investigate the main effect of each independent variable, i.e. TGF-β1 conditioning, substrate topography and culture time, along with the interactions of these variables. Each of TGF-β1, substrate topography and culture time significantly affected the protein expression of α-actin, h1-calponin and gelsolin. Overall, TGF-β1 conditioning of the cells and culturing the cells on the micro-grooved substrate resulted in greater protein expression of α-actin and h1-calponin, and lesser protein expression of gelsolin. In addition to the isolated effects of the variables, treatment type interacted with substrate topography and culture time to regulate the expression of the above-mentioned proteins. This study indicated the feasibility of promoting SM differentiation of human MSCs by simultaneous recruitment of micro-grooved topography and TGF-β1. The findings could be of assistance when effective utilization of chemo-physical cues is needed to achieve functional SMC-like MSCs in vitro.
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Affiliation(s)
- Sakhavat Abolhasani
- Department of Clinical Biochemistry, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Masoumeh Rajabibazl
- Department of Clinical Biochemistry, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Mohammad-Mehdi Khani
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Azim Parandakh
- Faculty of Biomedical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran.
| | - Reyhaneh Hoseinpoor
- Department of Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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15
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Ono S, Ono K. Two Caenorhabditis elegans calponin-related proteins have overlapping functions that maintain cytoskeletal integrity and are essential for reproduction. J Biol Chem 2020; 295:12014-12027. [PMID: 32554465 PMCID: PMC7443509 DOI: 10.1074/jbc.ra120.014133] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 06/16/2020] [Indexed: 12/18/2022] Open
Abstract
Multicellular organisms have multiple genes encoding calponins and calponin-related proteins, some of which are known to regulate actin cytoskeletal dynamics and contractility. However, the functional similarities and differences among these proteins are largely unknown. In the nematode Caenorhabditis elegans, UNC-87 is a calponin-related protein with seven calponin-like (CLIK) motifs and is required for maintenance of contractile apparatuses in muscle cells. Here, we report that CLIK-1, another calponin-related protein that also contains seven CLIK motifs, functionally overlaps with UNC-87 in maintaining actin cytoskeletal integrity in vivo and has both common and different actin-regulatory activities in vitro We found that CLIK-1 is predominantly expressed in the body wall muscle and somatic gonad in which UNC-87 is also expressed. unc-87 mutation caused cytoskeletal defects in the body wall muscle and somatic gonad, whereas clik-1 depletion alone caused no detectable phenotypes. However, simultaneous clik-1 and unc-87 depletion caused sterility because of ovulation failure by severely affecting the contractile actin networks in the myoepithelial sheath of the somatic gonad. In vitro, UNC-87 bundled actin filaments, whereas CLIK-1 bound to actin filaments without bundling them and antagonized UNC-87-mediated filament bundling. We noticed that UNC-87 and CLIK-1 share common functions that inhibit cofilin binding and allow tropomyosin binding to actin filaments, suggesting that both proteins stabilize actin filaments. In conclusion, partially redundant functions of UNC-87 and CLIK-1 in ovulation are likely mediated by their common actin-regulatory activities, but their distinct actin-bundling activities suggest that they also have different biological functions.
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Affiliation(s)
- Shoichiro Ono
- Department of Pathology, Winship Cancer Institute, Emory University School of Medicine, Atlanta, Georgia, USA; Department of Cell Biology, Winship Cancer Institute, Emory University School of Medicine, Atlanta, Georgia, USA.
| | - Kanako Ono
- Department of Pathology, Winship Cancer Institute, Emory University School of Medicine, Atlanta, Georgia, USA; Department of Cell Biology, Winship Cancer Institute, Emory University School of Medicine, Atlanta, Georgia, USA
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Herzog R, van den Dries K, Cervero P, Linder S. Poji: a Fiji-based tool for analysis of podosomes and associated proteins. J Cell Sci 2020; 133:jcs238964. [PMID: 32152182 DOI: 10.1242/jcs.238964] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Accepted: 02/27/2020] [Indexed: 12/15/2022] Open
Abstract
Podosomes are actin-based adhesion and invasion structures in a variety of cell types, with podosome-forming cells displaying up to several hundreds of these structures. Podosome number, distribution and composition can be affected by experimental treatments or during regular turnover, necessitating a tool that is able to detect even subtle differences in podosomal properties. Here, we present a Fiji-based macro code termed 'Poji' ('podosome analysis by Fiji'), which serves as an easy-to-use tool to characterize a variety of cellular and podosomal parameters, including area, fluorescence intensity, relative enrichment of associated proteins and radial podosome intensity profiles. This tool should be useful to gain more detailed insight into the regulation, architecture and functions of podosomes. Moreover, we show that Poji is easily adaptable for the analysis of invadopodia and associated extracellular matrix degradation, and likely also of other micron-size punctate structures. This article describes the workflow of the Poji macro, presents several examples of its applications, and also points out limitations, as well as respective solutions, and adaptable features to streamline the analysis.This article has an associated First Person interview with the first author of the paper.
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Affiliation(s)
- Robert Herzog
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Eppendorf, Martinistr. 52, 20246 Hamburg, Germany
| | - Koen van den Dries
- Department of Cell Biology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Geert Grooteplein Zuid 26-28, 6525 GA Nijmegen, The Netherlands
| | - Pasquale Cervero
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Eppendorf, Martinistr. 52, 20246 Hamburg, Germany
| | - Stefan Linder
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Eppendorf, Martinistr. 52, 20246 Hamburg, Germany
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Chen X, Wang J, Peng X, Liu K, Zhang C, Zeng X, Lai Y. Comprehensive analysis of biomarkers for prostate cancer based on weighted gene co-expression network analysis. Medicine (Baltimore) 2020; 99:e19628. [PMID: 32243390 PMCID: PMC7440253 DOI: 10.1097/md.0000000000019628] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 02/19/2020] [Accepted: 02/24/2020] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Prostate cancer (PCa) is one of the leading causes of cancer-related death. In the present research, we adopted a comprehensive bioinformatics method to identify some biomarkers associated with the tumor progression and prognosis of PCa. METHODS Differentially expressed genes (DEGs) analysis and weighted gene co-expression network analysis (WGCNA) were applied for exploring gene modules correlative with tumor progression and prognosis of PCa. Clinically Significant Modules were distinguished, and Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis were used to Annotation, Visualization and Integrated Discovery (DAVID). Protein-protein interaction (PPI) networks were used in selecting potential hub genes. RNA-Seq data and clinical materials of prostate cancer from The Cancer Genome Atlas (TCGA) database were used for the identification and validation of hub genes. The significance of these genes was confirmed via survival analysis and immunohistochemistry. RESULTS 2688 DEGs were filtered. Weighted gene co-expression network was constructed, and DEGs were divided into 6 modules. Two modules were selected as hub modules which were highly associated with the tumor grades. Functional enrichment analysis was performed on genes in hub modules. Thirteen hub genes in these hub modules were identified through PPT networks. Based on TCGA data, 4 of them (CCNB1, TTK, CNN1, and ACTG2) were correlated with prognosis. The protein levels of CCNB1, TTK, and ACTG2 had a degree of differences between tumor tissues and normal tissues. CONCLUSION Four hub genes were identified as candidate biomarkers and potential therapeutic targets for further studies of exploring molecular mechanisms and individual therapy on PCa.
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Affiliation(s)
- Xuan Chen
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Institute of Urology of Shenzhen PKU-HKUST Medical Center, Shenzhen
- Shantou University Medical College, Shantou, Guangdong
| | - Jingyao Wang
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Institute of Urology of Shenzhen PKU-HKUST Medical Center, Shenzhen
| | - Xiqi Peng
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Institute of Urology of Shenzhen PKU-HKUST Medical Center, Shenzhen
- Shantou University Medical College, Shantou, Guangdong
| | - Kaihao Liu
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Institute of Urology of Shenzhen PKU-HKUST Medical Center, Shenzhen
- Anhui Medical University, Hefei, Anhui, China
| | - Chunduo Zhang
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Institute of Urology of Shenzhen PKU-HKUST Medical Center, Shenzhen
| | - Xingzhen Zeng
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Institute of Urology of Shenzhen PKU-HKUST Medical Center, Shenzhen
| | - Yongqing Lai
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Institute of Urology of Shenzhen PKU-HKUST Medical Center, Shenzhen
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Rey-Campos M, Moreira R, Romero A, Medina-Gali RM, Novoa B, Gasset M, Figueras A. Transcriptomic Analysis Reveals the Wound Healing Activity of Mussel Myticin C. Biomolecules 2020; 10:biom10010133. [PMID: 31947557 PMCID: PMC7023338 DOI: 10.3390/biom10010133] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 01/09/2020] [Accepted: 01/10/2020] [Indexed: 12/13/2022] Open
Abstract
Myticin C is the most studied antimicrobial peptide in the marine mussel Mytilus galloprovincialis. Although it is constitutively expressed in mussel hemocytes and displays antibacterial, antiviral, and chemotactic functions, recent work has suggested that this molecule is mainly activated after tissue injury. Therefore, the main objective of this work was to characterize the hemocytes’ transcriptomic response after a myticin C treatment, in order to understand the molecular changes induced by this cytokine-like molecule. The transcriptome analysis revealed the modulation of genes related to cellular movement, such as myosin, transgelin, and calponin-like proteins, in agreement with results of functional assays, where an implication of myticin C in the in vitro activation of hemocytes and migration was evidenced. This was also observed in vivo after a tissue injury, when hemocytes, with high concentrations of myticin C, migrated to the damaged area to heal the wound. All these properties allowed us to think about the biotechnological application of these molecules as wound healers. Human keratinocytes and larvae zebrafish models were used to confirm this hypothesis. Accelerated regeneration after a wound or tail fin amputation was observed after treatment with the myticin C peptide, supporting the chemotactic and healing activity of myticin C.
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Affiliation(s)
- Magalí Rey-Campos
- Institute of Marine Research (IIM), CSIC. Eduardo Cabello 6, 36208 Vigo, Spain; (M.R.-C.); (R.M.); (A.R.); (B.N.)
| | - Rebeca Moreira
- Institute of Marine Research (IIM), CSIC. Eduardo Cabello 6, 36208 Vigo, Spain; (M.R.-C.); (R.M.); (A.R.); (B.N.)
| | - Alejandro Romero
- Institute of Marine Research (IIM), CSIC. Eduardo Cabello 6, 36208 Vigo, Spain; (M.R.-C.); (R.M.); (A.R.); (B.N.)
| | - Regla M. Medina-Gali
- Instituto de Investigación, Desarrollo e Innovación en Biotecnología Sanitaria de Elche (IDiBE) and Instituto de Biología Molecular y Celular (IBMC), Miguel Hernández University (UMH), 03202 Elche Alicante, Spain;
| | - Beatriz Novoa
- Institute of Marine Research (IIM), CSIC. Eduardo Cabello 6, 36208 Vigo, Spain; (M.R.-C.); (R.M.); (A.R.); (B.N.)
| | - María Gasset
- Instituto Química-Física “Rocasolano”, CSIC. Serrano 119, 28006 Madrid, Spain
- Correspondence: (M.G.); (A.F.); Tel.: +34-986214462 (A.F.)
| | - Antonio Figueras
- Institute of Marine Research (IIM), CSIC. Eduardo Cabello 6, 36208 Vigo, Spain; (M.R.-C.); (R.M.); (A.R.); (B.N.)
- Correspondence: (M.G.); (A.F.); Tel.: +34-986214462 (A.F.)
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Raymundo BR, Oh I, Kim M, Kim C. Transgelin Depletion is Critical for the TGFβ1‐mediated Initiation of PLCγ1‐Cofilin‐driven Morphological and Migratory Changes in MDA‐MB‐231 Cells. B KOREAN CHEM SOC 2019. [DOI: 10.1002/bkcs.11900] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Bernardo R. Raymundo
- Department of Biotechnology, College of Life Sciences and BiotechnologyKorea University Seoul 136‐701 South Korea
| | - In‐Rok Oh
- Department of Biotechnology, College of Life Sciences and BiotechnologyKorea University Seoul 136‐701 South Korea
| | - MiJung Kim
- Department of Biotechnology, College of Life Sciences and BiotechnologyKorea University Seoul 136‐701 South Korea
- Division of Life Sciences, College of Life Sciences and BiotechnologyKorea University Seoul 136‐701 South Korea
| | - Chan‐Wha Kim
- Department of Biotechnology, College of Life Sciences and BiotechnologyKorea University Seoul 136‐701 South Korea
- Division of Life Sciences, College of Life Sciences and BiotechnologyKorea University Seoul 136‐701 South Korea
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Chen Z, He S, Zhan Y, He A, Fang D, Gong Y, Li X, Zhou L. TGF-β-induced transgelin promotes bladder cancer metastasis by regulating epithelial-mesenchymal transition and invadopodia formation. EBioMedicine 2019; 47:208-220. [PMID: 31420300 PMCID: PMC6796540 DOI: 10.1016/j.ebiom.2019.08.012] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 07/29/2019] [Accepted: 08/05/2019] [Indexed: 12/24/2022] Open
Abstract
Background Metastatic bladder cancer (BLCA) is a lethal disease with an unmet need for study. Transgelin (TAGLN) is an actin-binding protein that affects the dynamics of the actin cytoskeleton indicating its robust potential as a metastasis initiator. Here, we sought to explore the expression pattern of TAGLN and elucidate its specific functioning and mechanisms in BLCA. Methods A comprehensive assessment of TAGLN expression in BLCA was performed in three cohorts with a total of 847 patients. The potential effects of TAGLN on BLCA were further determined using clinical genomic analyses that guided the subsequent functional and mechanistic studies. In vitro migration, invasion assays and in vivo metastatic mouse model were performed to explore the biological functions of TAGLN in BLCA cells. Immunofluorescence, western blot and correlation analysis were used to investigate the molecular mechanisms of TAGLN. Findings TAGLN was highly expressed in BLCA and correlated with advanced prognostic features. TAGLN promoted cell colony formation and cell migration and invasion both in vitro and in vivo by inducing invadopodia formation and epithelial-mesenchymal transition, during which a significant correlation between TAGLN and Slug was observed. The progression-dependent correlation between TGF-β and TAGLN was analysed at both the cellular and tissue levels, while TGF-β-mediated migration was abolished by the suppression of TAGLN. Interpretation Overall, TAGLN is a promising novel prognosis biomarker of BLCA, and its metastatic mechanisms indicate that TAGLN may represent a novel target agent that can be utilized for the clinical management of invasive and metastatic BLCA. Fund This work was supported by the National Natural Science Foundation of China [81772703, 81672546, 81602253]; the Natural Science Foundation of Beijing [71772219, 7152146]. and Innovative Fund for Doctoral Students of Peking University Health Science Center (BUM2018BSS002). Funders had no role in the design of the study, data collection, data analysis, interpretation, or the writing of this report.
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Affiliation(s)
- Zhicong Chen
- Department of Urology, Peking University First Hospital, Beijing 100034, China; Institute of Urology, Peking University, Beijing 100034, China; National Urological Cancer Center, Beijing 100034, China; Beijing Key Laboratory of Urogenital Diseases (male) Molecular Diagnosis and Treatment Center, Beijing 100034, China
| | - Shiming He
- Department of Urology, Peking University First Hospital, Beijing 100034, China; Institute of Urology, Peking University, Beijing 100034, China; National Urological Cancer Center, Beijing 100034, China; Beijing Key Laboratory of Urogenital Diseases (male) Molecular Diagnosis and Treatment Center, Beijing 100034, China
| | - Yonghao Zhan
- Department of Urology, Peking University First Hospital, Beijing 100034, China; Institute of Urology, Peking University, Beijing 100034, China; National Urological Cancer Center, Beijing 100034, China; Beijing Key Laboratory of Urogenital Diseases (male) Molecular Diagnosis and Treatment Center, Beijing 100034, China; Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 45000, China
| | - Anbang He
- Department of Urology, Peking University First Hospital, Beijing 100034, China; Institute of Urology, Peking University, Beijing 100034, China; National Urological Cancer Center, Beijing 100034, China; Beijing Key Laboratory of Urogenital Diseases (male) Molecular Diagnosis and Treatment Center, Beijing 100034, China
| | - Dong Fang
- Department of Urology, Peking University First Hospital, Beijing 100034, China; Institute of Urology, Peking University, Beijing 100034, China; National Urological Cancer Center, Beijing 100034, China; Beijing Key Laboratory of Urogenital Diseases (male) Molecular Diagnosis and Treatment Center, Beijing 100034, China
| | - Yanqing Gong
- Department of Urology, Peking University First Hospital, Beijing 100034, China; Institute of Urology, Peking University, Beijing 100034, China; National Urological Cancer Center, Beijing 100034, China; Beijing Key Laboratory of Urogenital Diseases (male) Molecular Diagnosis and Treatment Center, Beijing 100034, China.
| | - Xuesong Li
- Department of Urology, Peking University First Hospital, Beijing 100034, China; Institute of Urology, Peking University, Beijing 100034, China; National Urological Cancer Center, Beijing 100034, China; Beijing Key Laboratory of Urogenital Diseases (male) Molecular Diagnosis and Treatment Center, Beijing 100034, China.
| | - Liqun Zhou
- Department of Urology, Peking University First Hospital, Beijing 100034, China; Institute of Urology, Peking University, Beijing 100034, China; National Urological Cancer Center, Beijing 100034, China; Beijing Key Laboratory of Urogenital Diseases (male) Molecular Diagnosis and Treatment Center, Beijing 100034, China.
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Yin LM, Ulloa L, Yang YQ. Transgelin-2: Biochemical and Clinical Implications in Cancer and Asthma. Trends Biochem Sci 2019; 44:885-896. [PMID: 31256982 DOI: 10.1016/j.tibs.2019.05.004] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 05/22/2019] [Accepted: 05/30/2019] [Indexed: 12/29/2022]
Abstract
Transgelin-2 has been regarded as an actin-binding protein that induces actin gelation and regulates actin cytoskeleton. However, transgelin-2 has recently been shown to relax the myosin cytoskeleton of the airway smooth muscle cells by acting as a receptor for extracellular metallothionein-2. From a clinical perspective, these results support transgelin-2 as a promising therapeutic target for diseases such as cancer and asthma. The inhibition of transgelin-2 prevents actin gelation and thereby cancer cell proliferation, invasion, and metastasis. Conversely, the activation of transgelin-2 with specific agonists relaxes airway smooth muscles and reduces pulmonary resistance in asthma. Here, we review new studies on the biochemical properties of transgelin-2 and discuss their clinical implications for the treatment of immune, oncogenic, and respiratory disorders.
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Affiliation(s)
- Lei-Miao Yin
- Yueyang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200030, China
| | - Luis Ulloa
- International Laboratory of Neuro-Immunomodulation, Shanghai University of Traditional Chinese Medicine, Shanghai 200030, China; Center of Immunology and Inflammation, Dept. of Surgery. Rutgers University-New Jersey Medical School, Newark, NJ 07101, USA.
| | - Yong-Qing Yang
- Yueyang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200030, China.
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22
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Bolomini-Vittori M, Mennens SFB, Joosten B, Fransen J, Du G, van den Dries K, Cambi A. PLD-dependent phosphatidic acid microdomains are signaling platforms for podosome formation. Sci Rep 2019; 9:3556. [PMID: 30837487 PMCID: PMC6401089 DOI: 10.1038/s41598-019-39358-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 01/22/2019] [Indexed: 01/07/2023] Open
Abstract
Local membrane phospholipid enrichment serves as docking platform for signaling proteins involved in many processes including cell adhesion and migration. Tissue-resident dendritic cells (DCs) assemble actomyosin-based structures called podosomes, which mediate adhesion and degradation of extracellular matrix for migration and antigen sampling. Recent evidence suggested the involvement of phospholipase D (PLD) and its product phosphatidic acid (PA) in podosome formation, but the spatiotemporal control of this process is poorly characterized. Here we determined the role of PLD1 and PLD2 isoforms in regulating podosome formation and dynamics in human primary DCs by combining PLD pharmacological inhibition with a fluorescent PA sensor and fluorescence microscopy. We found that ongoing PLD2 activity is required for the maintenance of podosomes, whereas both PLD1 and PLD2 control the early stages of podosome assembly. Furthermore, we captured the formation of PA microdomains accumulating at the membrane cytoplasmic leaflet of living DCs, in dynamic coordination with nascent podosome actin cores. Finally, we show that both PLD1 and PLD2 activity are important for podosome-mediated matrix degradation. Our results provide novel insight into the isoform-specific spatiotemporal regulation of PLD activity and further our understanding of the role of cell membrane phospholipids in controlling localized actin polymerization and cell protrusion.
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Affiliation(s)
- Matteo Bolomini-Vittori
- Department of Cell Biology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Svenja F B Mennens
- Department of Cell Biology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Ben Joosten
- Department of Cell Biology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands.,Microscopic Imaging Center, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Jack Fransen
- Department of Cell Biology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands.,Microscopic Imaging Center, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Guangwei Du
- Department of Integrative Biology and Pharmacology, University of Texas Health Science Center, Houston, Texas, USA
| | - Koen van den Dries
- Department of Cell Biology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Alessandra Cambi
- Department of Cell Biology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands.
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Huang L, Li L, Yang T, Li W, Song L, Meng X, Gu Q, Xiong C, He J. Transgelin as a potential target in the reversibility of pulmonary arterial hypertension secondary to congenital heart disease. J Cell Mol Med 2018; 22:6249-6261. [PMID: 30338626 PMCID: PMC6237561 DOI: 10.1111/jcmm.13912] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Revised: 08/13/2018] [Accepted: 08/20/2018] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND The reversibility of pulmonary arterial hypertension (PAH) in congenital heart disease (CHD) is of great importance for the operability of CHD. Proteomics analysis found that transgelin was significantly up-regulated in the lung tissue of CHD-PAH patients, especially in the irreversible group. However, how exactly it participated in CHD-PAH development is unknown. METHODS Immunohistochemical staining and Western blot were performed for further qualitative and quantitative analysis of transgelin in the lung tissues of CHD-PAH patients. The mechanism of transgelin in CHD-PAH development was explored in vitro. Primary human pulmonary arterial smooth muscle cells (hPASMCs) were cultured and infected with TAGLN siRNA or TAGLN lentiviral vector. Cell morphologic change (Coomassie Brilliant Blue staining), proliferation (cell count and EdU assay), apoptosis (terminal deoxyribonucleotidyl transferase mediated dUTP nick end labeling assay and Annexin-V flow cytometry) and migration (transwell) were evaluated following the cell treatment. The mRNA and protein expression levels were detected in real-time PCR and Western blot. RESULTS In line with the proteomic findings, transgelin was obviously expressed in PASMC of the middle pulmonary arterioles, especially in the irreversible PAH group. Also, transgelin expression showed positive relation with pathological grading. Experiment in vitro demonstrated that transgelin overexpression promoted PASMC proliferation and migration, strengthened cytoskeleton and was accompanied by increased expression of synthetic phenotype markers (osteopontin, proliferating cell nuclear antigen) and anti-apoptotic protein (bcl-2). On the other hand, suppression of transgelin expression activated PASMC apoptosis, reducing cell proliferation and migration. CONCLUSIONS Transgelin may be a potential target in the development of irreversible CHD-PAH through inducing PASMC phenotype change, proliferation, migration and reducing cell apoptosis.
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Affiliation(s)
- Li Huang
- Center of Pulmonary Vascular DiseaseState Key Laboratory of Cardiovascular DiseaseFuwai HospitalNational Center for Cardiovascular DiseasesChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Li Li
- Department of PathologyState Key Laboratory of Cardiovascular DiseaseFuwai HospitalNational Center for Cardiovascular DiseasesChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Tao Yang
- Center of Pulmonary Vascular DiseaseState Key Laboratory of Cardiovascular DiseaseFuwai HospitalNational Center for Cardiovascular DiseasesChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Wen Li
- Center of Pulmonary Vascular DiseaseState Key Laboratory of Cardiovascular DiseaseFuwai HospitalNational Center for Cardiovascular DiseasesChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Li Song
- State Key Laboratory of Cardiovascular DiseaseFuwai HospitalNational Center for Cardiovascular DiseasesChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Xianmin Meng
- State Key Laboratory of Cardiovascular DiseaseFuwai HospitalNational Center for Cardiovascular DiseasesChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Qing Gu
- Center of Pulmonary Vascular DiseaseState Key Laboratory of Cardiovascular DiseaseFuwai HospitalNational Center for Cardiovascular DiseasesChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Changming Xiong
- Center of Pulmonary Vascular DiseaseState Key Laboratory of Cardiovascular DiseaseFuwai HospitalNational Center for Cardiovascular DiseasesChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Jianguo He
- Center of Pulmonary Vascular DiseaseState Key Laboratory of Cardiovascular DiseaseFuwai HospitalNational Center for Cardiovascular DiseasesChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
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Chua MD, Walker BD, Jin JP, Guttman JA. Calponins Are Recruited to Actin-Rich Structures Generated by Pathogenic Escherichia coli, Listeria, and Salmonella. Anat Rec (Hoboken) 2018; 301:2103-2111. [PMID: 30312538 DOI: 10.1002/ar.23956] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 07/10/2018] [Accepted: 07/12/2018] [Indexed: 01/12/2023]
Abstract
The ingestion of enteropathogenic Escherichia coli (EPEC), Listeria monocytogenes, or Salmonella enterica serovar Typhimurium leads to their colonization of the intestinal lumen, which ultimately causes an array of ailments ranging from diarrhea to bacteremia. Once in the intestines, these microbes generate various actin-rich structures to attach, invade, or move within the host intestinal epithelial cells. Although an assortment of actin-associated proteins has been identified to varying degrees at these structures, the localization of many actin stabilizing proteins have yet to be analyzed. Here, we examined the recruitment of the actin-associated proteins, calponin 1 and 2 at EPEC pedestals, L. monocytogenes actin clouds, comet tails and listeriopods, and S. Typhimurium membrane ruffles. In other systems, calponins are known to bind to and stabilize actin filaments. In EPEC pedestals, calponin 1 was recruited uniformly throughout the structures while calponin 2 was enriched at the apical tip. During L. monocytogenes infections, calponin 1 was found through all the actin-rich structures generated by the bacteria, while calponin 2 was only present within actin-rich structures formed by L. monocytogenes near the host cell membrane. Finally, both calponins were found within S. Typhimurium-generated membrane ruffles. Taken together, we have shown that although calponin 1 is recruited to actin-rich structures formed by the three bacteria, calponin 2 is specifically recruited to only membrane-bound actin-rich structures formed by the bacteria. Thus, our findings suggest that calponin 2 is a novel marker for membrane-bound actin structures formed by pathogenic bacteria. Anat Rec, 301:2103-2111, 2018. © 2018 Wiley Periodicals, Inc.
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Affiliation(s)
- Michael Dominic Chua
- Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia, Canada
| | | | - Jian-Ping Jin
- Department of Physiology, Wayne State University School of Medicine, Detroit, Michigan
| | - Julian A Guttman
- Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia, Canada
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25
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Chua MD, Hipolito KJ, Singerr OB, Solway J, Guttman JA. SM22 is required for the maintenance of actin-rich structures generated during bacterial infections. Exp Cell Res 2018; 369:139-146. [PMID: 29778753 DOI: 10.1016/j.yexcr.2018.05.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Revised: 05/15/2018] [Accepted: 05/16/2018] [Indexed: 11/19/2022]
Abstract
The host actin cytoskeleton is utilized by an assortment of pathogenic bacteria to colonize and cause disease in their hosts. Two prominently studied actin-hijacking bacteria are enteropathogenic Escherichia coli (EPEC) and Listeria monocytogenes. EPEC form actin-rich pedestals atop its host cells to move across the intestinal epithelia, while Listeria monocytogenes generate branched actin networks arranged as actin clouds around the bacteria and as comet tails for propulsion within and amongst their host cells. Previous mass spectrometry analysis revealed that a member of the calponin family of actin-bundling proteins, transgelin/SM22 was enriched in EPEC pedestals. To validate that finding and examine the role of SM22 during infections, we initially immunolocalized SM22 in EPEC and L. monocytogenes infected cells, used siRNA to deplete SM22 and EGFP-SM22 to overexpress SM22, then quantified the alterations to the bacterially generated actin structures. SM22 concentrated at all bacterially-generated actin structures. Depletion of SM22 resulted in fewer pedestals and comet tails and caused comet tails to shorten. The decrease in comet tail abundance caused a proportional increase in actin clouds whereas overexpression of SM22 reversed the actin cloud to comet tail proportions and increased comet tail length, while not influencing EPEC pedestal abundance. Thus, we demonstrate that SM22 plays a role in regulating the transitions and morphological appearance of bacterially generated actin-rich structures during infections.
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Affiliation(s)
- Michael Dominic Chua
- Department of Biological Sciences, Simon Fraser University, 8888 University Dr Shrum Science Centre Rm B7239, Burnaby, BC, Canada V5A1S6
| | - Kevin Jay Hipolito
- Department of Biological Sciences, Simon Fraser University, 8888 University Dr Shrum Science Centre Rm B7239, Burnaby, BC, Canada V5A1S6
| | - Onisokumen Benny Singerr
- Department of Biological Sciences, Simon Fraser University, 8888 University Dr Shrum Science Centre Rm B7239, Burnaby, BC, Canada V5A1S6
| | - Julian Solway
- Department of Medicine, University of Chicago, 5841 S. Maryland Ave, MC6026, Rm BH-M644, Chicago, IL 60637, USA
| | - Julian Andrew Guttman
- Department of Biological Sciences, Simon Fraser University, 8888 University Dr Shrum Science Centre Rm B7239, Burnaby, BC, Canada V5A1S6.
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26
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Varberg KM, Garretson RO, Blue EK, Chu C, Gohn CR, Tu W, Haneline LS. Transgelin induces dysfunction of fetal endothelial colony-forming cells from gestational diabetic pregnancies. Am J Physiol Cell Physiol 2018; 315:C502-C515. [PMID: 29949406 DOI: 10.1152/ajpcell.00137.2018] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Fetal exposure to gestational diabetes mellitus (GDM) predisposes children to future health complications including hypertension and cardiovascular disease. A key mechanism by which these complications occur is through the functional impairment of vascular progenitor cells, including endothelial colony-forming cells (ECFCs). Previously, we showed that fetal ECFCs exposed to GDM have decreased vasculogenic potential and altered gene expression. In this study, we evaluate whether transgelin (TAGLN), which is increased in GDM-exposed ECFCs, contributes to vasculogenic dysfunction. TAGLN is an actin-binding protein involved in the regulation of cytoskeletal rearrangement. We hypothesized that increased TAGLN expression in GDM-exposed fetal ECFCs decreases network formation by impairing cytoskeletal rearrangement resulting in reduced cell migration. To determine if TAGLN is required and/or sufficient to impair ECFC network formation, TAGLN was reduced and overexpressed in ECFCs from GDM and uncomplicated pregnancies, respectively. Decreasing TAGLN expression in GDM-exposed ECFCs improved network formation and stability as well as increased migration. In contrast, overexpressing TAGLN in ECFCs from uncomplicated pregnancies decreased network formation, network stability, migration, and alignment to laminar flow. Overall, these data suggest that increased TAGLN likely contributes to the vasculogenic dysfunction observed in GDM-exposed ECFCs, as it impairs ECFC migration, cell alignment, and network formation. Identifying the molecular mechanisms underlying fetal ECFC dysfunction following GDM exposure is key to ascertain mechanistically the basis for cardiovascular disease predisposition later in life.
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Affiliation(s)
- Kaela M Varberg
- Department of Cellular and Integrative Physiology, Indiana University School of Medicine , Indianapolis, Indiana.,Herman B. Wells Center for Pediatric Research , Indianapolis, Indiana
| | - Rashell O Garretson
- Herman B. Wells Center for Pediatric Research , Indianapolis, Indiana.,Department of Pediatrics, Indiana University School of Medicine , Indianapolis, Indiana
| | - Emily K Blue
- Herman B. Wells Center for Pediatric Research , Indianapolis, Indiana.,Department of Pediatrics, Indiana University School of Medicine , Indianapolis, Indiana
| | - Chenghao Chu
- Department of Biostatistics, Indiana University School of Medicine , Indianapolis, Indiana
| | - Cassandra R Gohn
- Department of Cellular and Integrative Physiology, Indiana University School of Medicine , Indianapolis, Indiana.,Herman B. Wells Center for Pediatric Research , Indianapolis, Indiana
| | - Wanzhu Tu
- Department of Biostatistics, Indiana University School of Medicine , Indianapolis, Indiana
| | - Laura S Haneline
- Department of Cellular and Integrative Physiology, Indiana University School of Medicine , Indianapolis, Indiana.,Herman B. Wells Center for Pediatric Research , Indianapolis, Indiana.,Department of Pediatrics, Indiana University School of Medicine , Indianapolis, Indiana.,Department of Microbiology and Immunology, Indiana University School of Medicine , Indianapolis, Indiana.,Indiana University Simon Cancer Center, Indiana University School of Medicine , Indianapolis, Indiana
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27
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Klimek-Piotrowska W, Krawczyk-Ożóg A, Suski M, Kapusta P, Wołkow PP, Hołda MK. Comparative iTRAQ analysis of protein abundance in the human sinoatrial node and working cardiomyocytes. J Anat 2018; 232:956-964. [PMID: 29484645 DOI: 10.1111/joa.12798] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/30/2018] [Indexed: 02/06/2023] Open
Abstract
Our objective was to assess the changes in protein abundance in the human sinoatrial node (SAN) compared with working cardiomyocytes to identify SAN-specific protein signatures. Four pairs of samples (the SAN and working cardiomyocytes) were obtained postmortem from four human donors with no evidence of cardiovascular disease. We performed protein identification and quantitation using two-dimensional chromatography-tandem mass spectrometry with isobaric peptide labeling (iTRAQ). We identified 451 different proteins expressed in both the SAN and working cardiomyocytes, 166 of which were differentially regulated (110 were upregulated in the SAN and 56 in the working cardiomyocytes). We identified sarcomere structural proteins in both tissues, although they were differently distributed among the tested samples. For example, myosin light chain 4, myosin regulatory light chain 2-atrial isoform, and tropomyosin alpha-3 chain levels were twofold higher in the SAN than in working cardiomyocytes, and myosin light chain 3 and myosin regulatory light chain 2-ventricular/cardiac muscle isoform levels were twofold higher in the ventricle tissue than in SAN. We identified many mitochondrial oxidative phosphorylation, β-oxidation, and tricarboxylic acid cycle proteins that were predominantly associated with working cardiomyocytes tissue. We detected upregulation of the fatty acid omega activation pathway proteins in the SAN samples. Some proteins specific for smooth muscle tissue were highly upregulated in the SAN (e.g. transgelin), which indicates that the SAN tissue might act as the bridge between the working myocardium and the smooth muscle. Our results show possible implementation of proteomic strategies to identify in-depth functional differences between various heart sub-structures.
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Affiliation(s)
- Wiesława Klimek-Piotrowska
- HEART - Heart Embryology and Anatomy Research Team, Department of Anatomy, Faculty of Medicine, Jagiellonian University Medical College, Cracow, Poland
| | - Agata Krawczyk-Ożóg
- HEART - Heart Embryology and Anatomy Research Team, Department of Anatomy, Faculty of Medicine, Jagiellonian University Medical College, Cracow, Poland
| | - Maciej Suski
- Department of Pharmacology, Faculty of Medicine, Jagiellonian University Medical College, Cracow, Poland
| | - Przemysław Kapusta
- Center for Medical Genomics OMICRON, Faculty of Medicine, Jagiellonian University Medical College, Cracow, Poland
| | - Paweł P Wołkow
- Center for Medical Genomics OMICRON, Faculty of Medicine, Jagiellonian University Medical College, Cracow, Poland.,Department of Pharmacology, Faculty of Medicine, Jagiellonian University Medical College, Cracow, Poland
| | - Mateusz K Hołda
- HEART - Heart Embryology and Anatomy Research Team, Department of Anatomy, Faculty of Medicine, Jagiellonian University Medical College, Cracow, Poland
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28
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Lymphocyte-specific protein 1 regulates mechanosensory oscillation of podosomes and actin isoform-based actomyosin symmetry breaking. Nat Commun 2018; 9:515. [PMID: 29410425 PMCID: PMC5802837 DOI: 10.1038/s41467-018-02904-x] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 01/05/2018] [Indexed: 01/06/2023] Open
Abstract
Subcellular fine-tuning of the actomyosin cytoskeleton is a prerequisite for polarized cell migration. We identify LSP (lymphocyte-specific protein) 1 as a critical regulator of actomyosin contractility in primary macrophages. LSP1 regulates adhesion and migration, including the parameters cell area and speed, and also podosome turnover, oscillation and protrusive force. LSP1 recruits myosin IIA and its regulators, including myosin light chain kinase and calmodulin, and competes with supervillin, a myosin hyperactivator, for myosin regulators, and for actin isoforms, notably β-actin. Actin isoforms are anisotropically distributed in myosin IIA-expressing macrophages, and contribute to the differential recruitment of LSP1 and supervillin, thus enabling an actomyosin symmetry break, analogous to the situation in cells expressing two myosin II isoforms. Collectively, these results show that the cellular pattern of actin isoforms builds the basis for the differential distribution of two actomyosin machineries with distinct properties, leading to the establishment of discrete zones of actomyosin contractility. The actomyosin cytoskeleton plays an important role in polarised cell migration. Here the authors identify lymphocyte-specific protein (LSP)-1 as a regulator of actomyosin contractility in macrophages, by competing with supervillin for myosin IIA activators acting specifically on the β-actin isoform.
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29
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Abstract
SM22α, also named transgelin, is an actin filament-associated protein in smooth muscle and fibroblasts. Three decades after its discovery, the biological function of SM22α remains under investigation. Here we report a novel finding that the expression and degradation of SM22α/transgelin are regulated by mechanical tension. Following a mass spectrometry identification of SM22α degradation in isolated and tension-unloaded mouse aorta, we developed specific monoclonal antibodies to study the regulation of SM22α in human fetal lung myofibroblast line MRC-5 and primary cultures of neonatal mouse skin fibroblasts. The level of SM22α is positively related to the mechanical tension in the cytoskeleton produced by the myosin II motor in response to the stiffness of the culture matrix. Quantitative reverse transcription polymerase chain reaction demonstrated that the expression of SM22α is regulated at the transcriptional level. This mechanical regulation resembles that of calponin 2, another actin filament-associated protein. Immunofluorescent staining co-localized SM22α with F-actin, myosin, and calponin 2 in mouse skin fibroblasts. The close phylogenetic relationship between SM22α and the calponin family supports that SM22α is a calponin-like regulatory protein. The level of SM22α is decreased in skin fibroblasts isolated from calponin 2 knockout mice, suggesting interrelated regulation and function of the two proteins. On the other hand, SM22α expression was maximized at a matrix stiffness higher than that for calponin 2 in the same cell type, indicating differentiated regulation and tension responsiveness. The novel mechanoregulation of SM22α/transgelin lays the groundwork for understanding its cellular functions.
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Affiliation(s)
- Rong Liu
- Department of Physiology, Wayne State University School of Medicine , Detroit, Michigan 48201, United States
| | - M Moazzem Hossain
- Department of Physiology, Wayne State University School of Medicine , Detroit, Michigan 48201, United States
| | - Xuequn Chen
- Department of Physiology, Wayne State University School of Medicine , Detroit, Michigan 48201, United States
| | - Jian-Ping Jin
- Department of Physiology, Wayne State University School of Medicine , Detroit, Michigan 48201, United States
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30
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Chen YW, Lai CS, Chen YF, Chiu WT, Chen HC, Shen MR. STIM1-dependent Ca 2+ signaling regulates podosome formation to facilitate cancer cell invasion. Sci Rep 2017; 7:11523. [PMID: 28912430 PMCID: PMC5599537 DOI: 10.1038/s41598-017-11273-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Accepted: 08/22/2017] [Indexed: 12/23/2022] Open
Abstract
The clinical significance of STIM proteins and Orai Ca2+ channels in tumor progression has been demonstrated in different types of cancers. Podosomes are dynamic actin-rich cellular protrusions that facilitate cancer cell invasiveness by degrading extracellular matrix. Whether STIM1-dependent Ca2+ signaling facilitates cancer cell invasion through affecting podosome formation remains unclear. Here we show that the invasive fronts of cancer tissues overexpress STIM1, accompanied by active store-operated Ca2+ entry (SOCE). Interfering SOCE activity by SOCE inhibitors and STIM1 or Orai1 knockdown remarkably affects podosome rosettes formation. Mechanistically, STIM1-silencing significantly alters the podosome rosettes dynamics, shortens the maintenance phase of podosome rosettes and reduces cell invasiveness. The subsequently transient expression of STIM1 cDNA in STIM1-null (STIM1−/−) mouse embryo fibroblasts rescues the suppression of podosome formation, suggesting that STIM1-mediated SOCE activation directly regulates podosome formation. This study uncovers SOCE-mediated Ca2+ microdomain that is the molecular basis for Ca2+ sensitivity controlling podosome formation.
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Affiliation(s)
- Yun-Wen Chen
- Department of Pharmacology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Chieh-Shan Lai
- Department of Pharmacology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yih-Fung Chen
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Wen-Tai Chiu
- Department of Biomedical Engineering, National Cheng Kung University, Tainan, Taiwan
| | - Hong-Chen Chen
- Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan.,Graduate Institute of Biomedical Sciences, National Chung Hsing University, Taichung, Taiwan.,Rong-Hsing Research Center for Translational Medicine, National Chung Hsing University, Taichung, Taiwan.,Institute of Biochemistry and Molecular Biology, National Yang Ming University, Taipei, Taiwan
| | - Meng-Ru Shen
- Department of Pharmacology, College of Medicine, National Cheng Kung University, Tainan, Taiwan. .,Department of Obstetrics and Gynecology, National Cheng Kung University Hospital, Tainan, Taiwan.
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31
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Meyer-Rochow VB, Royuela M. Immunocytochemically determined regulatory proteins, troponin, calponin and caldesmon, may occur together in the musculature of a Gordian worm (Ecdysozoa, Cycloneuralia, Nematomorpha). ZOOMORPHOLOGY 2017. [DOI: 10.1007/s00435-017-0375-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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32
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Livne A, Geiger B. The inner workings of stress fibers - from contractile machinery to focal adhesions and back. J Cell Sci 2016; 129:1293-304. [PMID: 27037413 DOI: 10.1242/jcs.180927] [Citation(s) in RCA: 116] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Ventral stress fibers and focal adhesions are physically coupled structures that play key roles in cellular mechanics and force sensing. The tight functional interdependence between the two is manifested not only by their apparent proximity but also by the fact that ventral stress fibers and focal adhesions are simultaneously diminished upon actomyosin relaxation, and grow when subjected to external stretching. However, whereas the apparent co-regulation of the two structures is well-documented, the underlying mechanisms remains poorly understood. In this Commentary, we discuss some of the fundamental, yet still open questions regarding ventral stress fiber structure, its force-dependent assembly, as well as its capacity to generate force. We also challenge the common approach - i.e. ventral stress fibers are variants of the well-studied striated or smooth muscle machinery - by presenting and critically discussing alternative venues. By highlighting some of the less-explored aspects of the interplay between stress fibers and focal adhesions, we hope that this Commentary will encourage further investigation in this field.
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Affiliation(s)
- Ariel Livne
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Benjamin Geiger
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot 7610001, Israel
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33
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Brunet T, Fischer AH, Steinmetz PR, Lauri A, Bertucci P, Arendt D. The evolutionary origin of bilaterian smooth and striated myocytes. eLife 2016; 5. [PMID: 27906129 PMCID: PMC5167519 DOI: 10.7554/elife.19607] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Accepted: 12/01/2016] [Indexed: 12/25/2022] Open
Abstract
The dichotomy between smooth and striated myocytes is fundamental for bilaterian musculature, but its evolutionary origin is unsolved. In particular, interrelationships of visceral smooth muscles remain unclear. Absent in fly and nematode, they have not yet been characterized molecularly outside vertebrates. Here, we characterize expression profile, ultrastructure, contractility and innervation of the musculature in the marine annelid Platynereis dumerilii and identify smooth muscles around the midgut, hindgut and heart that resemble their vertebrate counterparts in molecular fingerprint, contraction speed and nervous control. Our data suggest that both visceral smooth and somatic striated myocytes were present in the protostome-deuterostome ancestor and that smooth myocytes later co-opted the striated contractile module repeatedly – for example, in vertebrate heart evolution. During these smooth-to-striated myocyte conversions, the core regulatory complex of transcription factors conveying myocyte identity remained unchanged, reflecting a general principle in cell type evolution. DOI:http://dx.doi.org/10.7554/eLife.19607.001
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Affiliation(s)
- Thibaut Brunet
- Developmental Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany
| | - Antje Hl Fischer
- Developmental Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany
| | - Patrick Rh Steinmetz
- Developmental Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany
| | - Antonella Lauri
- Developmental Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany
| | - Paola Bertucci
- Developmental Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany
| | - Detlev Arendt
- Developmental Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany
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34
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Lv P, Zhang F, Yin YJ, Wang YC, Gao M, Xie XL, Zhao LL, Dong LH, Lin YL, Shu YN, Zhang DD, Liu GX, Han M. SM22α inhibits lamellipodium formation and migration via Ras-Arp2/3 signaling in synthetic VSMCs. Am J Physiol Cell Physiol 2016; 311:C758-C767. [PMID: 27629412 DOI: 10.1152/ajpcell.00033.2016] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Accepted: 09/07/2016] [Indexed: 02/03/2023]
Abstract
We previously demonstrated that smooth muscle (SM) 22α promotes the migration activity in contractile vascular smooth muscle cells (VSMCs). Based on the varied functions exhibited by SM22α in different VSMC phenotypes, we investigated the effect of SM22α on VSMC migration under pathological conditions. The results demonstrated that SM22α overexpression in synthetic VSMCs inhibited platelet-derived growth factor (PDGF)-BB-induced cell lamellipodium formation and migration, which was different from its action in contractile cells. The results indicated two distinct mechanisms underlying inhibition of lamellipodium formation by SM22α, increased actin dynamic stability and decreased Ras activity via interference with interactions between Ras and guanine nucleotide exchange factor. The former inhibited actin cytoskeleton rearrangement in the cell cortex, while the latter significantly disrupted actin nucleation activation of the Arp2/3 complex. Baicalin, a herb-derived flavonoid compound, inhibited VSMC migration via upregulation of SM22α expression in vitro and in vivo. These data suggest that SM22α regulates lamellipodium formation and cell migration in a phenotype-dependent manner in VSMCs, which may be a new therapeutic target for vascular lesion formation.
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Affiliation(s)
- Pin Lv
- Key Laboratory of Medical Biotechnology of Hebei Province, Department of Biochemistry and Molecular Biology, College of Basic Medicine, Hebei Medical University, Shijiazhuang, China
| | - Fan Zhang
- Key Laboratory of Medical Biotechnology of Hebei Province, Department of Biochemistry and Molecular Biology, College of Basic Medicine, Hebei Medical University, Shijiazhuang, China
| | - Ya-Juan Yin
- Key Laboratory of Medical Biotechnology of Hebei Province, Department of Biochemistry and Molecular Biology, College of Basic Medicine, Hebei Medical University, Shijiazhuang, China
| | - Yu-Can Wang
- Key Laboratory of Medical Biotechnology of Hebei Province, Department of Biochemistry and Molecular Biology, College of Basic Medicine, Hebei Medical University, Shijiazhuang, China
| | - Min Gao
- Key Laboratory of Medical Biotechnology of Hebei Province, Department of Biochemistry and Molecular Biology, College of Basic Medicine, Hebei Medical University, Shijiazhuang, China
| | - Xiao-Li Xie
- Key Laboratory of Medical Biotechnology of Hebei Province, Department of Biochemistry and Molecular Biology, College of Basic Medicine, Hebei Medical University, Shijiazhuang, China
| | - Li-Li Zhao
- Key Laboratory of Medical Biotechnology of Hebei Province, Department of Biochemistry and Molecular Biology, College of Basic Medicine, Hebei Medical University, Shijiazhuang, China
| | - Li-Hua Dong
- Key Laboratory of Medical Biotechnology of Hebei Province, Department of Biochemistry and Molecular Biology, College of Basic Medicine, Hebei Medical University, Shijiazhuang, China
| | - Yan-Ling Lin
- Key Laboratory of Medical Biotechnology of Hebei Province, Department of Biochemistry and Molecular Biology, College of Basic Medicine, Hebei Medical University, Shijiazhuang, China
| | - Ya-Nan Shu
- Key Laboratory of Medical Biotechnology of Hebei Province, Department of Biochemistry and Molecular Biology, College of Basic Medicine, Hebei Medical University, Shijiazhuang, China
| | - Dan-Dan Zhang
- Key Laboratory of Medical Biotechnology of Hebei Province, Department of Biochemistry and Molecular Biology, College of Basic Medicine, Hebei Medical University, Shijiazhuang, China
| | - Gui-Xia Liu
- Key Laboratory of Medical Biotechnology of Hebei Province, Department of Biochemistry and Molecular Biology, College of Basic Medicine, Hebei Medical University, Shijiazhuang, China
| | - Mei Han
- Key Laboratory of Medical Biotechnology of Hebei Province, Department of Biochemistry and Molecular Biology, College of Basic Medicine, Hebei Medical University, Shijiazhuang, China
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El Azzouzi K, Wiesner C, Linder S. Metalloproteinase MT1-MMP islets act as memory devices for podosome reemergence. J Cell Biol 2016; 213:109-25. [PMID: 27069022 PMCID: PMC4828691 DOI: 10.1083/jcb.201510043] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Accepted: 03/02/2016] [Indexed: 12/11/2022] Open
Abstract
The authors find that matrix metalloproteinase MT1-MMP is enriched at the plasma membrane of macrophage podosomes, where it persists beyond podosome lifetime and, through binding to the subcortical actin cytoskeleton, forms subcellular signposts that facilitate podosome reformation. Podosomes are dynamic cell adhesions that are also sites of extracellular matrix degradation, through recruitment of matrix-lytic enzymes, particularly of matrix metalloproteinases. Using total internal reflection fluorescence microscopy, we show that the membrane-bound metalloproteinase MT1-MMP is enriched not only at podosomes but also at distinct “islets” embedded in the plasma membrane of primary human macrophages. MT1-MMP islets become apparent upon podosome dissolution and persist beyond podosome lifetime. Importantly, the majority of MT1-MMP islets are reused as sites of podosome reemergence. siRNA-mediated knockdown and recomplementation analyses show that islet formation is based on the cytoplasmic tail of MT1-MMP and its ability to bind the subcortical actin cytoskeleton. Collectively, our data reveal a previously unrecognized phase in the podosome life cycle and identify a structural function of MT1-MMP that is independent of its proteolytic activity. MT1-MMP islets thus act as cellular memory devices that enable efficient and localized reformation of podosomes, ensuring coordinated matrix degradation and invasion.
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Affiliation(s)
- Karim El Azzouzi
- Institut für medizinische Mikrobiologie, Virologie und Hygiene, Universitätsklinikum Eppendorf, 20246 Hamburg, Germany
| | - Christiane Wiesner
- Institut für medizinische Mikrobiologie, Virologie und Hygiene, Universitätsklinikum Eppendorf, 20246 Hamburg, Germany
| | - Stefan Linder
- Institut für medizinische Mikrobiologie, Virologie und Hygiene, Universitätsklinikum Eppendorf, 20246 Hamburg, Germany
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36
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Zhu X, Efimova N, Arnette C, Hanks SK, Kaverina I. Podosome dynamics and location in vascular smooth muscle cells require CLASP-dependent microtubule bending. Cytoskeleton (Hoboken) 2016; 73:300-15. [PMID: 27105779 DOI: 10.1002/cm.21302] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Revised: 04/15/2016] [Accepted: 04/20/2016] [Indexed: 11/07/2022]
Abstract
Extracellular matrix (ECM) remodeling during physiological processes is mediated by invasive protrusions called podosomes. Positioning and dynamics of podosomes define the extent of ECM degradation. Microtubules are known to be involved in podosome regulation, but the role of microtubule (MT) network configuration in podosome dynamics and positioning is not well understood. Here, we show that the arrangement of the microtubule network defines the pattern of podosome formation and relocation in vascular smooth muscle cells (VSMCs). We show that microtubule plus-end targeting facilitates de novo formation of podosomes, in addition to podosome remodeling. Moreover, specialized bent microtubules with plus ends reversed towards the cell center promote relocation of podosomes from the cell edge to the cell center, resulting in an evenly distributed podosome pattern. Microtubule bending is induced downstream of protein kinase C (PKC) activation and requires microtubule-stabilizing proteins known as cytoplasmic linker associated proteins (CLASPs) and retrograde actin flow. Similar to microtubule depolymerization, CLASP depletion by siRNA blocks microtubule bending and eliminates centripetal relocation of podosomes. Podosome relocation also coincides with translocation of podosome-stimulating kinesin KIF1C, which is known to move preferentially along CLASP-associated microtubules. These findings indicate that CLASP-dependent microtubule network configuration is critical to the cellular location and distribution of KIF1C-dependent podosomes. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Xiaodong Zhu
- Department of Cell and Developmental Biology, Vanderbilt University Medical Center, Nashville, TN
| | - Nadia Efimova
- Department of Cell and Developmental Biology, Vanderbilt University Medical Center, Nashville, TN
| | - Christopher Arnette
- Department of Cell and Developmental Biology, Vanderbilt University Medical Center, Nashville, TN
| | - Steven K Hanks
- Department of Cell and Developmental Biology, Vanderbilt University Medical Center, Nashville, TN
| | - Irina Kaverina
- Department of Cell and Developmental Biology, Vanderbilt University Medical Center, Nashville, TN
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García-Marqués F, Trevisan-Herraz M, Martínez-Martínez S, Camafeita E, Jorge I, Lopez JA, Méndez-Barbero N, Méndez-Ferrer S, Del Pozo MA, Ibáñez B, Andrés V, Sánchez-Madrid F, Redondo JM, Bonzon-Kulichenko E, Vázquez J. A Novel Systems-Biology Algorithm for the Analysis of Coordinated Protein Responses Using Quantitative Proteomics. Mol Cell Proteomics 2016; 15:1740-60. [PMID: 26893027 DOI: 10.1074/mcp.m115.055905] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Indexed: 11/06/2022] Open
Abstract
The coordinated behavior of proteins is central to systems biology. However, the underlying mechanisms are poorly known and methods to analyze coordination by conventional quantitative proteomics are still lacking. We present the Systems Biology Triangle (SBT), a new algorithm that allows the study of protein coordination by pairwise quantitative proteomics. The Systems Biology Triangle detected statistically significant coordination in diverse biological models of very different nature and subjected to different kinds of perturbations. The Systems Biology Triangle also revealed with unprecedented molecular detail an array of coordinated, early protein responses in vascular smooth muscle cells treated at different times with angiotensin-II. These responses included activation of protein synthesis, folding, turnover, and muscle contraction - consistent with a differentiated phenotype-as well as the induction of migration and the repression of cell proliferation and secretion. Remarkably, the majority of the altered functional categories were protein complexes, interaction networks, or metabolic pathways. These changes could not be detected by other algorithms widely used by the proteomics community, and the vast majority of proteins involved have not been described before to be regulated by AngII. The unique capabilities of The Systems Biology Triangle to detect functional protein alterations produced by the coordinated action of proteins in pairwise quantitative proteomics experiments make this algorithm an attractive choice for the biological interpretation of results on a routine basis.
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Affiliation(s)
- Fernando García-Marqués
- From the ‡Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain
| | - Marco Trevisan-Herraz
- From the ‡Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain
| | - Sara Martínez-Martínez
- From the ‡Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain
| | - Emilio Camafeita
- From the ‡Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain
| | - Inmaculada Jorge
- From the ‡Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain
| | - Juan Antonio Lopez
- From the ‡Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain
| | - Nerea Méndez-Barbero
- From the ‡Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain
| | - Simón Méndez-Ferrer
- From the ‡Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain
| | - Miguel Angel Del Pozo
- From the ‡Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain
| | - Borja Ibáñez
- From the ‡Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain
| | - Vicente Andrés
- From the ‡Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain
| | | | - Juan Miguel Redondo
- From the ‡Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain
| | - Elena Bonzon-Kulichenko
- From the ‡Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain
| | - Jesús Vázquez
- From the ‡Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain
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38
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Zhou HM, Fang YY, Weinberger PM, Ding LL, Cowell JK, Hudson FZ, Ren M, Lee JR, Chen QK, Su H, Dynan WS, Lin Y. Transgelin increases metastatic potential of colorectal cancer cells in vivo and alters expression of genes involved in cell motility. BMC Cancer 2016; 16:55. [PMID: 26847345 PMCID: PMC4741053 DOI: 10.1186/s12885-016-2105-8] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Accepted: 01/31/2016] [Indexed: 01/22/2023] Open
Abstract
Background Transgelin is an actin-binding protein that promotes motility in normal cells. Although the role of transgelin in cancer is controversial, a number of studies have shown that elevated levels correlate with aggressive tumor behavior, advanced stage, and poor prognosis. Here we sought to determine the role of transgelin more directly by determining whether experimental manipulation of transgelin levels in colorectal cancer (CRC) cells led to changes in metastatic potential in vivo. Methods Isogenic CRC cell lines that differ in transgelin expression were characterized using in vitro assays of growth and invasiveness and a mouse tail vein assay of experimental metastasis. Downstream effects of transgelin overexpression were investigated by gene expression profiling and quantitative PCR. Results Stable overexpression of transgelin in RKO cells, which have low endogenous levels, led to increased invasiveness, growth at low density, and growth in soft agar. Overexpression also led to an increase in the number and size of lung metastases in the mouse tail vein injection model. Similarly, attenuation of transgelin expression in HCT116 cells, which have high endogenous levels, decreased metastases in the same model. Investigation of mRNA expression patterns showed that transgelin overexpression altered the levels of approximately 250 other transcripts, with over-representation of genes that affect function of actin or other cytoskeletal proteins. Changes included increases in HOOK1, SDCCAG8, ENAH/Mena, and TNS1 and decreases in EMB, BCL11B, and PTPRD. Conclusions Increases or decreases in transgelin levels have reciprocal effects on tumor cell behavior, with higher expression promoting metastasis. Chronic overexpression influences steady-state levels of mRNAs for metastasis-related genes. Electronic supplementary material The online version of this article (doi:10.1186/s12885-016-2105-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Hui-Min Zhou
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China.,Department of Gastroenterology and Hepatology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China.,Department of Gastroenterology and Hepatology, The First Affiliated Hospital, School of Clinical Medicine of Guangdong Pharmaceutical University, Guangzhou, 510000, China
| | - Yuan-Yuan Fang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China.,Department of Gastroenterology and Hepatology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China
| | - Paul M Weinberger
- Center for Biotechnology and Genomic Medicine, Georgia Regents University, Augusta, GA, 30912, USA.,GRU Cancer Center, Georgia Regents University, Augusta, GA, USA
| | | | - John K Cowell
- GRU Cancer Center, Georgia Regents University, Augusta, GA, USA
| | - Farlyn Z Hudson
- Institute of Molecular Medicine and Genetics, Georgia Regents University, Augusta, GA, USA
| | - Mingqiang Ren
- GRU Cancer Center, Georgia Regents University, Augusta, GA, USA
| | - Jeffrey R Lee
- Department of Pathology, Georgia Regents University, and Charlie Norwood Veterans Affairs Medical Center, Augusta, GA, USA
| | - Qi-Kui Chen
- Department of Gastroenterology and Hepatology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China
| | - Hong Su
- Department of Gastroenterology and Hepatology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China
| | - William S Dynan
- Institute of Molecular Medicine and Genetics, Georgia Regents University, Augusta, GA, USA. .,Departments of Radiation Oncology and Biochemistry, Emory University, Atlanta, GA, USA.
| | - Ying Lin
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China. .,Department of Gastroenterology and Hepatology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China.
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39
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Prolactin-Induced Protein regulates cell adhesion in breast cancer. Biochem Biophys Res Commun 2015; 468:850-6. [PMID: 26585492 DOI: 10.1016/j.bbrc.2015.11.043] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Accepted: 11/09/2015] [Indexed: 02/06/2023]
Abstract
Prolactin-Induced Prolactin (PIP) is widely expressed in breast cancer and has key cellular functions in this disease that include promoting invasion and cell cycle progression. Notably, we have recently identified a strong association between PIP-binding partners and a number of cell functions that are involved in cell adhesion. Therefore in this study, we investigated the effect of PIP on the regulation of cell adhesion using PIP-silencing in breast cancer cell lines T-47D, BT-474, and MFM-223. Our findings suggest that PIP expression is necessary for cell adhesion in a process that shows variation in the pattern of PIP regulation of cell-matrix and cell-cell adhesions based on the types of adhesion surface and breast cancer cell line. In this respect, we observed that PIP-silencing markedly reduced cell adhesion to uncoated plates in all three cell lines. In addition, in T-47D and MFM-223 cells fibronectin matrix induced baseline adhesion and reversed the PIP-silencing mediated reduction of cell adhesion. However, in BT-474 cells we did not observe an induction of baseline adhesion by fibronectin and PIP-silencing led to a marked reduction in cell adhesion to both uncoated and fibronectin-coated plates. Furthermore, we observed a significant reduction in cell-cell adhesion of BT-474 cell line following PIP-silencing. To explain an underlying mechanism for PIP regulation of cell adhesion, we found that PIP expression is necessary for the formation of α-actinin/actin-rich podosomes at the adhesion-sites of breast cancer cells. In summary, this study suggests that PIP expression regulates the process of cell adhesion in breast cancer.
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40
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Yokota M, Kojima M, Higuchi Y, Nishizawa Y, Kobayashi A, Ito M, Saito N, Ochiai A. Gene expression profile in the activation of subperitoneal fibroblasts reflects prognosis of patients with colon cancer. Int J Cancer 2015; 138:1422-31. [PMID: 26370611 DOI: 10.1002/ijc.29851] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2015] [Revised: 07/28/2015] [Accepted: 08/28/2015] [Indexed: 12/25/2022]
Abstract
Tumors can create a heterogenetic tumor microenvironment. We recently identified the pathologically unique cancer microenvironment formed by peritoneal invasion (CMPI), and revealed that subperitoneal fibroblasts (SPFs) within peritoneal tissue play a crucial role in tumor progression through their interaction with cancer cells. Therefore, the genes in SPFs altered by cancer stimulation may include some biologically important factors associated with patient prognosis. In this study, we aimed to identify new biomarkers using genes specifically upregulated in SPFs by cancer-cell-conditioned medium (CCCM) stimulation (SPFs CCCM response genes; SCR genes) in colon cancer (CC). We constructed two frameworks using SCR gene data: a publicly released microarray dataset, and validation cases with freshly frozen CC samples to identify genes related to short recurrence-free survival (RFS). In the first framework, we selected differentially expressed genes between the high and low SCR gene expression groups. In the second framework, genes significantly related to short RFS were selected by univariate analysis using all SCR genes, and multivariate analysis was performed to select robust genes associated with short RFS. We identified CTGF, CALD1, INHBA and TAGLN in the first framework, and PDLIM5, MAGI1, SPTBN1 and TAGLN in the second framework. Among these seven genes, high expression of three genes (CALD1, TAGLN and SPTBN1) showed a poor prognosis in our validation cases. In a public microarray dataset, SCR gene expression was associated with the expression of ECM component, EMT, and M2-macrophage associated genes, which was concordant with the pathological features of CMPI. Thus, we successfully identified new prognostic factors.
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Affiliation(s)
- Mitsuru Yokota
- Division of Colorectal Surgery, National Cancer Center Hospital East, Kashiwa, Chiba, 277-8577, Japan.,Department of Surgery, Keio University School of Medicine, Shinjuku-Ku, Tokyo, 160-8582, Japan
| | - Motohiro Kojima
- Division of Pathology, Research Center for Innovative Oncology, National Cancer Center Hospital East, Kashiwa, Chiba, 277-8577, Japan
| | - Youichi Higuchi
- Laboratory of Cancer Biology, Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba, 277-8561, Japan
| | - Yuji Nishizawa
- Division of Colorectal Surgery, National Cancer Center Hospital East, Kashiwa, Chiba, 277-8577, Japan
| | - Akihiro Kobayashi
- Division of Colorectal Surgery, National Cancer Center Hospital East, Kashiwa, Chiba, 277-8577, Japan
| | - Masaaki Ito
- Division of Colorectal Surgery, National Cancer Center Hospital East, Kashiwa, Chiba, 277-8577, Japan
| | - Norio Saito
- Division of Colorectal Surgery, National Cancer Center Hospital East, Kashiwa, Chiba, 277-8577, Japan
| | - Atsushi Ochiai
- Division of Pathology, Research Center for Innovative Oncology, National Cancer Center Hospital East, Kashiwa, Chiba, 277-8577, Japan
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41
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Sayar N, Karahan G, Konu O, Bozkurt B, Bozdogan O, Yulug IG. Transgelin gene is frequently downregulated by promoter DNA hypermethylation in breast cancer. Clin Epigenetics 2015; 7:104. [PMID: 26421063 PMCID: PMC4587865 DOI: 10.1186/s13148-015-0138-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2015] [Accepted: 09/18/2015] [Indexed: 12/17/2022] Open
Abstract
Background CpG hypermethylation in gene promoters is a frequent mechanism of tumor suppressor gene silencing in various types of cancers. It usually occurs at early steps of cancer progression and can be detected easily, giving rise to development of promising biomarkers for both detection and progression of cancer, including breast cancer. 5-aza-2′-deoxycytidine (AZA) is a DNA demethylating and anti-cancer agent resulting in induction of genes suppressed via DNA hypermethylation. Results Using microarray expression profiling of AZA- or DMSO-treated breast cancer and non-tumorigenic breast (NTB) cells, we identified for the first time TAGLN gene as a target of DNA hypermethylation in breast cancer. TAGLN expression was significantly and frequently downregulated via promoter DNA hypermethylation in breast cancer cells compared to NTB cells, and also in 13/21 (61.9 %) of breast tumors compared to matched normal tissues. Analyses of public microarray methylation data showed that TAGLN was also hypermethylated in 63.02 % of tumors compared to normal tissues; relapse-free survival of patients was worse with higher TAGLN methylation; and methylation levels could discriminate between tumors and healthy tissues with 83.14 % sensitivity and 100 % specificity. Additionally, qRT-PCR and immunohistochemistry experiments showed that TAGLN expression was significantly downregulated in two more independent sets of breast tumors compared to normal tissues and was lower in tumors with poor prognosis. Colony formation was increased in TAGLN silenced NTB cells, while decreased in overexpressing BC cells. Conclusions TAGLN gene is frequently downregulated by DNA hypermethylation, and TAGLN promoter methylation profiles could serve as a future diagnostic biomarker, with possible clinical impact regarding the prognosis in breast cancer. Electronic supplementary material The online version of this article (doi:10.1186/s13148-015-0138-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Nilufer Sayar
- Department of Molecular Biology and Genetics, Bilkent University, Faculty of Science, TR-06800 Ankara, Turkey
| | - Gurbet Karahan
- Department of Molecular Biology and Genetics, Bilkent University, Faculty of Science, TR-06800 Ankara, Turkey
| | - Ozlen Konu
- Department of Molecular Biology and Genetics, Bilkent University, Faculty of Science, TR-06800 Ankara, Turkey
| | - Betul Bozkurt
- Department of General Surgery, Ankara Numune Training and Research Hospital, 06100 Ankara, Turkey
| | - Onder Bozdogan
- Department of Pathology, Ankara Numune Training and Research Hospital, 06100 Ankara, Turkey
| | - Isik G Yulug
- Department of Molecular Biology and Genetics, Bilkent University, Faculty of Science, TR-06800 Ankara, Turkey
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Ono K, Obinata T, Yamashiro S, Liu Z, Ono S. UNC-87 isoforms, Caenorhabditis elegans calponin-related proteins, interact with both actin and myosin and regulate actomyosin contractility. Mol Biol Cell 2015; 26:1687-98. [PMID: 25717181 PMCID: PMC4436780 DOI: 10.1091/mbc.e14-10-1483] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Accepted: 02/18/2015] [Indexed: 12/12/2022] Open
Abstract
Two UNC-87 isoforms with seven calponin-like repeats are expressed widely in muscle and nonmuscle cells in Caenorhabditis elegans. They bind to actin and myosin and inhibit actomyosin motility in vitro. unc-87 mutation enhances contraction of nonstriated muscle in vivo, suggesting that UNC-87 isoforms are negative regulators of actomyosin contractility. Calponin-related proteins are widely distributed among eukaryotes and involved in signaling and cytoskeletal regulation. Calponin-like (CLIK) repeat is an actin-binding motif found in the C-termini of vertebrate calponins. Although CLIK repeats stabilize actin filaments, other functions of these actin-binding motifs are unknown. The Caenorhabditis elegans unc-87 gene encodes actin-binding proteins with seven CLIK repeats. UNC-87 stabilizes actin filaments and is essential for maintenance of sarcomeric actin filaments in striated muscle. Here we show that two UNC-87 isoforms, UNC-87A and UNC-87B, are expressed in muscle and nonmuscle cells in a tissue-specific manner by two independent promoters and exhibit quantitatively different effects on both actin and myosin. Both UNC-87A and UNC-87B have seven CLIK repeats, but UNC-87A has an extra N-terminal extension of ∼190 amino acids. Both UNC-87 isoforms bind to actin filaments and myosin to induce ATP-resistant actomyosin bundles and inhibit actomyosin motility. UNC-87A with an N-terminal extension binds to actin and myosin more strongly than UNC-87B. UNC-87B is associated with actin filaments in nonstriated muscle in the somatic gonad, and an unc-87 mutation causes its excessive contraction, which is dependent on myosin. These results strongly suggest that proteins with CLIK repeats function as a negative regulator of actomyosin contractility.
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Affiliation(s)
- Kanako Ono
- Department of Pathology and Department of Cell Biology, Emory University, Atlanta, GA 30322
| | - Takashi Obinata
- Department of Biology, Faculty of Science, Chiba University, Chiba 263-8522, Japan
| | - Sawako Yamashiro
- Department of Pathology and Department of Cell Biology, Emory University, Atlanta, GA 30322
| | - Zhongmei Liu
- Department of Pathology and Department of Cell Biology, Emory University, Atlanta, GA 30322
| | - Shoichiro Ono
- Department of Pathology and Department of Cell Biology, Emory University, Atlanta, GA 30322
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Abstract
Proteomic analysis of rare cells in heterogeneous environments presents difficult challenges. Systematic methods are needed to enrich, identify, and quantify proteins expressed in specific cells in complex biological systems including multicellular plants and animals. Here, we have engineered a Caenorhabditis elegans phenylalanyl-tRNA synthetase capable of tagging proteins with the reactive noncanonical amino acid p-azido-L-phenylalanine. We achieved spatiotemporal selectivity in the labeling of C. elegans proteins by controlling expression of the mutant synthetase using cell-selective (body wall muscles, intestinal epithelial cells, neurons, and pharyngeal muscle) or state-selective (heat-shock) promoters in several transgenic lines. Tagged proteins are distinguished from the rest of the protein pool through bioorthogonal conjugation of the azide side chain to probes that permit visualization and isolation of labeled proteins. By coupling our methodology with stable-isotope labeling of amino acids in cell culture (SILAC), we successfully profiled proteins expressed in pharyngeal muscle cells, and in the process, identified proteins not previously known to be expressed in these cells. Our results show that tagging proteins with spatiotemporal selectivity can be achieved in C. elegans and illustrate a convenient and effective approach for unbiased discovery of proteins expressed in targeted subsets of cells.
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44
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Jacob A, Prekeris R. The regulation of MMP targeting to invadopodia during cancer metastasis. Front Cell Dev Biol 2015; 3:4. [PMID: 25699257 PMCID: PMC4313772 DOI: 10.3389/fcell.2015.00004] [Citation(s) in RCA: 199] [Impact Index Per Article: 22.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2014] [Accepted: 01/09/2015] [Indexed: 01/07/2023] Open
Abstract
The dissemination of cancer cells from the primary tumor to a distant site, known as metastasis, is the main cause of mortality in cancer patients. Metastasis is a very complex cellular process that involves many steps, including the breaching of the basement membrane (BM) to allow the movement of cells through tissues. The BM breach occurs via highly regulated and localized remodeling of the extracellular matrix (ECM), which is mediated by formation of structures, known as invadopodia, and targeted secretion of matrix metalloproteinases (MMPs). Recently, invadopodia have emerged as key cellular structures that regulate the metastasis of many cancers. Furthermore, targeting of various cytoskeletal modulators and MMPs has been shown to play a major role in regulating invadopodia function. Here, we highlight recent findings regarding the regulation of protein targeting during invadopodia formation and function.
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Affiliation(s)
- Abitha Jacob
- Department of Cell and Developmental Biology, School of Medicine, Anschutz Medical Campus, University of Colorado Denver Aurora, CO, USA
| | - Rytis Prekeris
- Department of Cell and Developmental Biology, School of Medicine, Anschutz Medical Campus, University of Colorado Denver Aurora, CO, USA
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45
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Hosin AA, Prasad A, Viiri LE, Davies AH, Shalhoub J. MicroRNAs in atherosclerosis. J Vasc Res 2014; 51:338-49. [PMID: 25500818 DOI: 10.1159/000368193] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Accepted: 08/12/2014] [Indexed: 11/19/2022] Open
Abstract
Micro-ribonucleic acids (miRNAs) are a class of endogenous non-coding ribonucleic acids that regulate gene expression. MiRNAs have been shown to act as key regulators in the vascular system, with wide-ranging physio-pathological effects. Atherosclerotic disease is a leading cause of morbidity and mortality worldwide. This review presents current knowledge on miRNAs implicated in atherosclerosis susceptibility, development and progression. They are involved in cell phenotype switching, response to shear stress, cell senescence, adhesion molecule expression, macrophage response to oxidised low-density lipoprotein, Toll-like receptor 4 expression, neointimal lesion formation, plaque angiogenesis and cellular cholesterol homeostasis. Clinically, early work has demonstrated the utility of miRNAs for differentiating patients with arterial disease from controls and predicting future cardiac events; this highlights potential diagnostic and prognostic roles. MiRNA involvement in the crucial stages of atherosclerosis promises new hope in treating arterial disease. However, issues regarding multiple miRNA targets, stability and delivery continue to present challenges.
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46
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Enayat S, Banerjee S. The Ethanolic Extract of Bark fromSalix Aegyptiaca L. Inhibits the Metastatic Potential and Epithelial to Mesenchymal Transition of Colon Cancer Cell Lines. Nutr Cancer 2014; 66:999-1008. [DOI: 10.1080/01635581.2014.936949] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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47
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YU XIN, LI ZHENG. MicroRNAs regulate vascular smooth muscle cell functions in atherosclerosis (Review). Int J Mol Med 2014; 34:923-33. [DOI: 10.3892/ijmm.2014.1853] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2013] [Accepted: 05/30/2014] [Indexed: 11/06/2022] Open
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48
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Wu X, Dong L, Zhang R, Ying K, Shen H. Transgelin overexpression in lung adenocarcinoma is associated with tumor progression. Int J Mol Med 2014; 34:585-91. [PMID: 24938684 DOI: 10.3892/ijmm.2014.1805] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Accepted: 06/03/2014] [Indexed: 11/05/2022] Open
Abstract
Hypoxia is a common feature of solid tumors and is associated with an increased likelihood of local recurrence and distant metastasis. Transgelin (TAGLN) is an actin cross-linking/polymerization protein that belongs to the family of actin-associated proteins, and there is evidence that TAGLN may be involved in the migration of epithelial cells by interacting with actin or promoting podosome formation. Cell migration is a key step of cancer metastatis. Thus, the aim of this study was to investigate the potential link between TAGLN protein levels and hypoxia in lung adenocarcinoma cells and to explore the possible functions and expression patterns of TAGLN in lung adenocarcinoma. We first examined the effects of altered TAGLN expression on cell migration under both normoxic and hypoxic conditions. Immunohistochemical (IHC) staining was also performed to examine TAGLN protein expression patterns in lung adenocarcinoma samples. Our results revealed that TAGLN was upregulated in the hypoxic lung adenocarcinoma cells. The inhibition of TAGLN expression in the cells using small interfering RNA (siRNA) led to a decreased migration ability. TAGLN was significantly overexpressed in the lung adenocarcinoma tissues compared to the adjacent tumor-free tissues. A high TAGLN expression correlated with an advanced TNM stage, lymph node metastasis and greater differentiation. TAGLN was upregulated in the human lung adenocarcinoma cell lines under hypoxic conditions, which contributed to the migration ability of the cells. Thus, our data suggest that TAGLN may be a viable therapeutic target and a potential biomarker for predicting the prognosis of patients with lung adenocarcinoma.
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Affiliation(s)
- Xiaohong Wu
- Department of Respiratory Medicine, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310016, P.R. China
| | - Liangliang Dong
- Department of Respiratory Medicine, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310016, P.R. China
| | - Ruifeng Zhang
- Department of Respiratory Medicine, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310016, P.R. China
| | - Kejing Ying
- Department of Respiratory Medicine, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310016, P.R. China
| | - Huahao Shen
- Department of Respiratory Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, P.R. China
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Yuasa T, Yano R, Izawa T, Kuwamura M, Yamate J. Calponin expression in renal tubulointerstitial fibrosis induced in rats by Cisplatin. J Toxicol Pathol 2014; 27:97-103. [PMID: 24791074 PMCID: PMC4000080 DOI: 10.1293/tox.2013-0048] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2013] [Accepted: 12/26/2013] [Indexed: 01/04/2023] Open
Abstract
Renal tubulointerstitial fibrosis is the common feature of chronic renal failure, regardless of its etiology. Myofibroblasts play important roles in progression of the fibrosis and are characterized by expressions of various cytoskeletons such as vimentin, desmin and α-smooth muscle actin (α-SMA). To pursue the characteristics of the cells, we immunohistochemically investigated the relationship between calponin (a marker of terminal smooth muscles) expression and myofibroblasts in cisplatin-induced rat renal tubulointerstitial fibrosis. Calponin-expressing interstitial cells increased with fibrosis and reacted simultaneously to vimentin or α-SMA (a marker of well-differentiated myofibroblasts) but not desmin or Thy-1 (a marker of myofibroblasts at the early stage). The present study shows that calponin may be expressed transiently in relatively well-developed myofibroblasts in rat renal fibrosis. Calponin could become a marker for myofibroblast development in chronic renal toxicity in rats.
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Affiliation(s)
- Takahiro Yuasa
- Laboratory of Veterinary Pathology, Life and Environmental Sciences, Osaka Prefecture University, Rinkuu Ourai Kita 1-58, Izumisano, Osaka 598-8531, Japan
| | - Ryo Yano
- Laboratory of Veterinary Pathology, Life and Environmental Sciences, Osaka Prefecture University, Rinkuu Ourai Kita 1-58, Izumisano, Osaka 598-8531, Japan
| | - Takeshi Izawa
- Laboratory of Veterinary Pathology, Life and Environmental Sciences, Osaka Prefecture University, Rinkuu Ourai Kita 1-58, Izumisano, Osaka 598-8531, Japan
| | - Mitsuru Kuwamura
- Laboratory of Veterinary Pathology, Life and Environmental Sciences, Osaka Prefecture University, Rinkuu Ourai Kita 1-58, Izumisano, Osaka 598-8531, Japan
| | - Jyoji Yamate
- Laboratory of Veterinary Pathology, Life and Environmental Sciences, Osaka Prefecture University, Rinkuu Ourai Kita 1-58, Izumisano, Osaka 598-8531, Japan
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50
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Resveratrol inhibits phenotype modulation by platelet derived growth factor-bb in rat aortic smooth muscle cells. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2014; 2014:572430. [PMID: 24738020 PMCID: PMC3964901 DOI: 10.1155/2014/572430] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2013] [Revised: 01/08/2014] [Accepted: 01/27/2014] [Indexed: 02/07/2023]
Abstract
Dedifferentiated vascular smooth muscle cells (VSMCs) are phenotypically modulated from the contractile state to the active synthetic state in the vessel wall. In this study, we investigated the effects of resveratrol on phenotype modulation by dedifferentiation and the intracellular signal transduction pathways of platelet derived growth factor-bb (PDGF-bb) in rat aortic vascular smooth muscle cells (RAOSMCs). Treatment of RAOSMCs with resveratrol showed dose-dependent inhibition of PDGF-bb-stimulated proliferation. Resveratrol treatment inhibited this phenotype change and disassembly of actin filaments and maintained the expression of contractile phenotype-related proteins such as calponin and smooth muscle actin-alpha in comparison with only PDGF-bb stimulated RAOSMC. Although PDGF stimulation elicited strong and detectable Akt and mTOR phosphorylations lasting for several hours, Akt activation was much weaker when PDGF was used with resveratrol. In contrast, resveratrol only slightly inhibited phosphorylations of 42/44 MAPK and p38 MAPK. In conclusion, RAOSMC dedifferentiation, phenotype, and proliferation rate were inhibited by resveratrol via interruption of the balance of Akt, 42/44MAPK, and p38MAPK pathway activation stimulated by PDGF-bb.
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