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Zhang JZ, Ong SE, Baker D, Maly DJ. Single-cell sensor analyses reveal signaling programs enabling Ras-G12C drug resistance. Nat Chem Biol 2024:10.1038/s41589-024-01684-4. [PMID: 39103633 DOI: 10.1038/s41589-024-01684-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Accepted: 06/23/2024] [Indexed: 08/07/2024]
Abstract
Clinical resistance to rat sarcoma virus (Ras)-G12C inhibitors is a challenge. A subpopulation of cancer cells has been shown to undergo genomic and transcriptional alterations to facilitate drug resistance but the immediate adaptive effects on Ras signaling in response to these drugs at the single-cell level is not well understood. Here, we used Ras biosensors to profile the activity and signaling environment of endogenous Ras at the single-cell level. We found that a subpopulation of KRas-G12C cells treated with Ras-G12C-guanosine-diphosphate inhibitors underwent adaptive signaling and metabolic changes driven by wild-type Ras at the Golgi and mutant KRas at the mitochondria, respectively. Our Ras biosensors identified major vault protein as a mediator of Ras activation through its scaffolding of Ras signaling pathway components and metabolite channels. Overall, methods including ours that facilitate direct analysis on the single-cell level can report the adaptations that subpopulations of cells adopt in response to cancer therapies, thus providing insight into drug resistance.
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Affiliation(s)
- Jason Z Zhang
- Department of Biochemistry, University of Washington, Seattle, WA, USA.
- Institute for Protein Design, University of Washington, Seattle, WA, USA.
- Howard Hughes Medical Institute, University of Washington, Seattle, WA, USA.
| | - Shao-En Ong
- Department of Pharmacology, University of Washington, Seattle, WA, USA
| | - David Baker
- Department of Biochemistry, University of Washington, Seattle, WA, USA
- Institute for Protein Design, University of Washington, Seattle, WA, USA
- Howard Hughes Medical Institute, University of Washington, Seattle, WA, USA
| | - Dustin J Maly
- Department of Biochemistry, University of Washington, Seattle, WA, USA
- Department of Chemistry, University of Washington, Seattle, WA, USA
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2
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Leone R, Zuglian C, Brambilla R, Morella I. Understanding copy number variations through their genes: a molecular view on 16p11.2 deletion and duplication syndromes. Front Pharmacol 2024; 15:1407865. [PMID: 38948459 PMCID: PMC11211608 DOI: 10.3389/fphar.2024.1407865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Accepted: 05/16/2024] [Indexed: 07/02/2024] Open
Abstract
Neurodevelopmental disorders (NDDs) include a broad spectrum of pathological conditions that affect >4% of children worldwide, share common features and present a variegated genetic origin. They include clinically defined diseases, such as autism spectrum disorders (ASD), attention-deficit/hyperactivity disorder (ADHD), motor disorders such as Tics and Tourette's syndromes, but also much more heterogeneous conditions like intellectual disability (ID) and epilepsy. Schizophrenia (SCZ) has also recently been proposed to belong to NDDs. Relatively common causes of NDDs are copy number variations (CNVs), characterised by the gain or the loss of a portion of a chromosome. In this review, we focus on deletions and duplications at the 16p11.2 chromosomal region, associated with NDDs, ID, ASD but also epilepsy and SCZ. Some of the core phenotypes presented by human carriers could be recapitulated in animal and cellular models, which also highlighted prominent neurophysiological and signalling alterations underpinning 16p11.2 CNVs-associated phenotypes. In this review, we also provide an overview of the genes within the 16p11.2 locus, including those with partially known or unknown function as well as non-coding RNAs. A particularly interesting interplay was observed between MVP and MAPK3 in modulating some of the pathological phenotypes associated with the 16p11.2 deletion. Elucidating their role in intracellular signalling and their functional links will be a key step to devise novel therapeutic strategies for 16p11.2 CNVs-related syndromes.
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Affiliation(s)
- Roberta Leone
- Università di Pavia, Dipartimento di Biologia e Biotecnologie “Lazzaro Spallanzani”, Pavia, Italy
| | - Cecilia Zuglian
- Università di Pavia, Dipartimento di Biologia e Biotecnologie “Lazzaro Spallanzani”, Pavia, Italy
| | - Riccardo Brambilla
- Università di Pavia, Dipartimento di Biologia e Biotecnologie “Lazzaro Spallanzani”, Pavia, Italy
- Cardiff University, School of Biosciences, Neuroscience and Mental Health Innovation Institute, Cardiff, United Kingdom
| | - Ilaria Morella
- Cardiff University, School of Biosciences, Neuroscience and Mental Health Innovation Institute, Cardiff, United Kingdom
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3
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Kim J, Vanrobaeys Y, Kelvington B, Peterson Z, Baldwin E, Gaine ME, Nickl-Jockschat T, Abel T. Dissecting 16p11.2 hemi-deletion to study sex-specific striatal phenotypes of neurodevelopmental disorders. Mol Psychiatry 2024; 29:1310-1321. [PMID: 38278994 PMCID: PMC11189748 DOI: 10.1038/s41380-024-02411-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 12/21/2023] [Accepted: 01/04/2024] [Indexed: 01/28/2024]
Abstract
Neurodevelopmental disorders (NDDs) are polygenic in nature and copy number variants (CNVs) are ideal candidates to study the nature of this polygenic risk. The disruption of striatal circuits is considered a central mechanism in NDDs. The 16p11.2 hemi-deletion (16p11.2 del/+) is one of the most common CNVs associated with NDD, and 16p11.2 del/+ mice show sex-specific striatum-related behavioral phenotypes. However, the critical genes among the 27 genes in the 16p11.2 region that underlie these phenotypes remain unknown. Previously, we applied a novel strategy to identify candidate genes associated with the sex-specific phenotypes of 16p11.2 del/+ mice and highlighted three genes within the deleted region: thousand and one amino acid protein kinase 2 (Taok2), seizure-related 6 homolog-like 2 (Sez6l2), and major vault protein (Mvp). Using CRISPR/Cas9, we generated mice carrying null mutations in Taok2, Sez6l2, and Mvp (3 gene hemi-deletion (3g del/+)). Hemi-deletion of these 3 genes recapitulates sex-specific behavioral alterations in striatum-dependent behavioral tasks observed in 16p11.2 del/+ mice, specifically male-specific hyperactivity and impaired motivation for reward seeking. Moreover, RNAseq analysis revealed that 3g del/+ mice exhibit gene expression changes in the striatum similar to 16p11.2 del/+ mice exclusively in males. Subsequent analysis identified translation dysregulation and/or extracellular signal-regulated kinase signaling as plausible molecular mechanisms underlying male-specific, striatum-dependent behavioral alterations. Interestingly, ribosomal profiling supported the notion of translation dysregulation in both 3g del/+ and 16p11.2 del/+ male mice. However, mice carrying a 4-gene deletion (with an additional deletion of Mapk3) exhibited fewer phenotypic similarities with 16p11.2 del/+ mice. Together, the mutation of 3 genes within the 16p11.2 region phenocopies striatal sex-specific phenotypes of 16p11.2 del/+ mice. These results support the importance of a polygenic approach to study NDDs and underscore that the effects of the large genetic deletions result from complex interactions between multiple candidate genes.
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Affiliation(s)
- Jaekyoon Kim
- Department of Neuroscience and Pharmacology, Carver College of Medicine, University of Iowa, Iowa, IA, USA
- Iowa Neuroscience Institute, University of Iowa, Iowa, IA, USA
| | - Yann Vanrobaeys
- Department of Neuroscience and Pharmacology, Carver College of Medicine, University of Iowa, Iowa, IA, USA
- Iowa Neuroscience Institute, University of Iowa, Iowa, IA, USA
- Interdisciplinary Graduate Program in Genetics, University of Iowa, Iowa, IA, USA
| | - Benjamin Kelvington
- Department of Neuroscience and Pharmacology, Carver College of Medicine, University of Iowa, Iowa, IA, USA
- Iowa Neuroscience Institute, University of Iowa, Iowa, IA, USA
| | - Zeru Peterson
- Department of Neuroscience and Pharmacology, Carver College of Medicine, University of Iowa, Iowa, IA, USA
- Iowa Neuroscience Institute, University of Iowa, Iowa, IA, USA
- Department of Psychiatry, Carver College of Medicine, University of Iowa, Iowa, IA, USA
| | - Emily Baldwin
- The Iowa Medical Scientist Training Program, University of Iowa, Iowa, IA, USA
| | - Marie E Gaine
- Iowa Neuroscience Institute, University of Iowa, Iowa, IA, USA
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, University of Iowa, Iowa, IA, USA
| | - Thomas Nickl-Jockschat
- Department of Neuroscience and Pharmacology, Carver College of Medicine, University of Iowa, Iowa, IA, USA.
- Iowa Neuroscience Institute, University of Iowa, Iowa, IA, USA.
- Department of Psychiatry, Carver College of Medicine, University of Iowa, Iowa, IA, USA.
| | - Ted Abel
- Department of Neuroscience and Pharmacology, Carver College of Medicine, University of Iowa, Iowa, IA, USA.
- Iowa Neuroscience Institute, University of Iowa, Iowa, IA, USA.
- Department of Psychiatry, Carver College of Medicine, University of Iowa, Iowa, IA, USA.
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4
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Taube M, Lisiak N, Totoń E, Rubiś B. Human Vault RNAs: Exploring Their Potential Role in Cellular Metabolism. Int J Mol Sci 2024; 25:4072. [PMID: 38612882 PMCID: PMC11012908 DOI: 10.3390/ijms25074072] [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: 03/07/2024] [Revised: 04/02/2024] [Accepted: 04/04/2024] [Indexed: 04/14/2024] Open
Abstract
Non-coding RNAs have been described as crucial regulators of gene expression and guards of cellular homeostasis. Some recent papers focused on vault RNAs, one of the classes of non-coding RNA, and their role in cell proliferation, tumorigenesis, apoptosis, cancer response to therapy, and autophagy, which makes them potential therapy targets in oncology. In the human genome, four vault RNA paralogues can be distinguished. They are associated with vault complexes, considered the largest ribonucleoprotein complexes. The protein part of these complexes consists of a major vault protein (MVP) and two minor vault proteins (vPARP and TEP1). The name of the complex, as well as vault RNA, comes from the hollow barrel-shaped structure that resembles a vault. Their sequence and structure are highly evolutionarily conserved and show many similarities in comparison with different species, but vault RNAs have various roles. Vaults were discovered in 1986, and their functions remained unclear for many years. Although not much is known about their contribution to cell metabolism, it has become clear that vault RNAs are involved in various processes and pathways associated with cancer progression and modulating cell functioning in normal and pathological stages. In this review, we discuss known functions of human vault RNAs in the context of cellular metabolism, emphasizing processes related to cancer and cancer therapy efficacy.
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Affiliation(s)
| | | | | | - Błażej Rubiś
- Department of Clinical Chemistry and Molecular Diagnostics, Poznan University of Medical Sciences, Rokietnicka 3, 60-806 Poznan, Poland; (M.T.); (N.L.); (E.T.)
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5
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Aghajani Mir M. Vault RNAs (vtRNAs): Rediscovered non-coding RNAs with diverse physiological and pathological activities. Genes Dis 2024; 11:772-787. [PMID: 37692527 PMCID: PMC10491885 DOI: 10.1016/j.gendis.2023.01.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 01/16/2023] [Indexed: 04/05/2023] Open
Abstract
The physicochemical characteristics of RNA admit non-coding RNAs to perform a different range of biological acts through various mechanisms and are involved in regulating a diversity of fundamental processes. Notably, some reports of pathological conditions have proved abnormal expression of many non-coding RNAs guides the ailment. Vault RNAs are a class of non-coding RNAs containing stem regions or loops with well-conserved sequence patterns that play a fundamental role in the function of vault particles through RNA-ligand, RNA-RNA, or RNA-protein interactions. Taken together, vault RNAs have been proposed to be involved in a variety of functions such as cell proliferation, nucleocytoplasmic transport, intracellular detoxification processes, multidrug resistance, apoptosis, and autophagy, and serve as microRNA precursors and signaling pathways. Despite decades of investigations devoted, the biological function of the vault particle or the vault RNAs is not yet completely cleared. In this review, the current scientific assertions of the vital vault RNAs functions were discussed.
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Affiliation(s)
- Mahsa Aghajani Mir
- Deputy of Research and Technology, Health Research Institute, Babol University of Medical Sciences, Babol 47176-4774, Iran
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6
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Kretz PF, Wagner C, Mikhaleva A, Montillot C, Hugel S, Morella I, Kannan M, Fischer MC, Milhau M, Yalcin I, Brambilla R, Selloum M, Herault Y, Reymond A, Collins SC, Yalcin B. Dissecting the autism-associated 16p11.2 locus identifies multiple drivers in neuroanatomical phenotypes and unveils a male-specific role for the major vault protein. Genome Biol 2023; 24:261. [PMID: 37968726 PMCID: PMC10647150 DOI: 10.1186/s13059-023-03092-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Accepted: 10/18/2023] [Indexed: 11/17/2023] Open
Abstract
BACKGROUND Using mouse genetic studies and systematic assessments of brain neuroanatomical phenotypes, we set out to identify which of the 30 genes causes brain defects at the autism-associated 16p11.2 locus. RESULTS We show that multiple genes mapping to this region interact to regulate brain anatomy, with female mice exhibiting far fewer brain neuroanatomical phenotypes. In male mice, among the 13 genes associated with neuroanatomical defects (Mvp, Ppp4c, Zg16, Taok2, Slx1b, Maz, Fam57b, Bola2, Tbx6, Qprt, Spn, Hirip3, and Doc2a), Mvp is the top driver implicated in phenotypes pertaining to brain, cortex, hippocampus, ventricles, and corpus callosum sizes. The major vault protein (MVP), the main component of the vault organelle, is a conserved protein found in eukaryotic cells, yet its function is not understood. Here, we find MVP expression highly specific to the limbic system and show that Mvp regulates neuronal morphology, postnatally and specifically in males. We also recapitulate a previously reported genetic interaction and show that Mvp+/-;Mapk3+/- mice exhibit behavioral deficits, notably decreased anxiety-like traits detected in the elevated plus maze and open field paradigms. CONCLUSIONS Our study highlights multiple gene drivers in neuroanatomical phenotypes, interacting with each other through complex relationships. It also provides the first evidence for the involvement of the major vault protein in the regulation of brain size and neuroanatomy, specifically in male mice.
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Affiliation(s)
- Perrine F Kretz
- Institute of Genetics and Molecular and Cellular Biology, UMR7104, University of Strasbourg, CNRS, INSERM, IGBMC, U964, 67400, Illkirch, France
| | - Christel Wagner
- Institute of Genetics and Molecular and Cellular Biology, UMR7104, University of Strasbourg, CNRS, INSERM, IGBMC, U964, 67400, Illkirch, France
| | - Anna Mikhaleva
- Center for Integrative Genomics, University of Lausanne, CH-1015, Lausanne, Switzerland
| | | | - Sylvain Hugel
- Institute of Cellular and Integrative neuroscience, CNRS, UPR321267000, Strasbourg, France
| | - Ilaria Morella
- School of Biosciences, Neuroscience and Mental Health Innovation Institute, Cardiff University, Cardiff, CF24 4HQ, UK
| | - Meghna Kannan
- Institute of Genetics and Molecular and Cellular Biology, UMR7104, University of Strasbourg, CNRS, INSERM, IGBMC, U964, 67400, Illkirch, France
| | - Marie-Christine Fischer
- Institute of Genetics and Molecular and Cellular Biology, UMR7104, University of Strasbourg, CNRS, INSERM, IGBMC, U964, 67400, Illkirch, France
| | - Maxence Milhau
- Inserm UMR1231, Université de Bourgogne, 21000, Dijon, France
| | - Ipek Yalcin
- Institute of Cellular and Integrative neuroscience, CNRS, UPR321267000, Strasbourg, France
| | - Riccardo Brambilla
- School of Biosciences, Neuroscience and Mental Health Innovation Institute, Cardiff University, Cardiff, CF24 4HQ, UK
- Dipartimento di Biologia e Biotecnologie "Lazzaro Spallanzani", Università degli Studi di Pavia, Pavia, Italy
| | - Mohammed Selloum
- Institute of Genetics and Molecular and Cellular Biology, UMR7104, University of Strasbourg, CNRS, INSERM, IGBMC, U964, 67400, Illkirch, France
- University of Strasbourg, CNRS, INSERM, CELPHEDIA, PHENOMIN, ICS, 67400, Illkirch, France
| | - Yann Herault
- Institute of Genetics and Molecular and Cellular Biology, UMR7104, University of Strasbourg, CNRS, INSERM, IGBMC, U964, 67400, Illkirch, France
- University of Strasbourg, CNRS, INSERM, CELPHEDIA, PHENOMIN, ICS, 67400, Illkirch, France
| | - Alexandre Reymond
- Center for Integrative Genomics, University of Lausanne, CH-1015, Lausanne, Switzerland
| | - Stephan C Collins
- Institute of Genetics and Molecular and Cellular Biology, UMR7104, University of Strasbourg, CNRS, INSERM, IGBMC, U964, 67400, Illkirch, France
- Current address: Université de Bourgogne, Inserm UMR1231, 21000, Dijon, France
| | - Binnaz Yalcin
- Institute of Genetics and Molecular and Cellular Biology, UMR7104, University of Strasbourg, CNRS, INSERM, IGBMC, U964, 67400, Illkirch, France.
- Current address: Université de Bourgogne, Inserm UMR1231, 21000, Dijon, France.
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7
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Zhang JZ, Ong SE, Baker D, Maly DJ. Single-cell signaling analysis reveals that Major Vault Protein facilitates RasG12C inhibitor resistance. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.10.02.560617. [PMID: 37873412 PMCID: PMC10592919 DOI: 10.1101/2023.10.02.560617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2023]
Abstract
Recently developed covalent inhibitors for RasG12C provide the first pharmacological tools to target mutant Ras-driven cancers. However, the rapid development of resistance to current clinical Ras G12C inhibitors is common. Presumably, a subpopulation of RasG12C-expressing cells adapt their signaling to evade these inhibitors and the mechanisms for this phenomenon are unclear due to the lack of tools that can measure signaling with single-cell resolution. Here, we utilized recently developed Ras sensors to profile the environment of active Ras and to measure the activity of endogenous Ras in order to pair structure (Ras signalosome) to function (Ras activity), respectively, at a single-cell level. With this approach, we identified a subpopulation of KRasG12C cells treated with RasG12C-GDP inhibitors underwent oncogenic signaling and metabolic changes driven by WT Ras at the golgi and mutant Ras at the mitochondria, respectively. Our Ras sensors identified Major Vault Protein (MVP) as a mediator of Ras activation at both compartments by scaffolding Ras signaling pathway components and metabolite channels. We found that recently developed RasG12C-GTP inhibitors also led to MVP-mediated WT Ras signaling at the golgi, demonstrating that this a general mechanism RasG12C inhibitor resistance. Overall, single-cell analysis of structure-function relationships enabled the discovery of a RasG12C inhibitor-resistant subpopulation driven by MVP, providing insight into the complex and heterogenous rewiring occurring during drug resistance in cancer.
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Affiliation(s)
- Jason Z. Zhang
- Department of Biochemistry, University of Washington, Seattle, Washington 98195, United States
- Institute for Protein Design, University of Washington, Seattle, Washington 98195, United States
- Howard Hughes Medical Institute, University of Washington, Seattle, Washington 98195, United States
| | - Shao-En Ong
- Department of Pharmacology, University of Washington, Seattle, Washington 98195, United States
| | - David Baker
- Department of Biochemistry, University of Washington, Seattle, Washington 98195, United States
- Institute for Protein Design, University of Washington, Seattle, Washington 98195, United States
- Howard Hughes Medical Institute, University of Washington, Seattle, Washington 98195, United States
| | - Dustin J. Maly
- Department of Biochemistry, University of Washington, Seattle, Washington 98195, United States
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
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Abel T, Kim J, Vanrobaeys Y, Peterson Z, Kelvington B, Gaine M, Nickl-Jockschat T. Dissecting 16p11.2 hemi-deletion to study sex-specific striatal phenotypes of neurodevelopmental disorders. RESEARCH SQUARE 2023:rs.3.rs-2565823. [PMID: 36824977 PMCID: PMC9949238 DOI: 10.21203/rs.3.rs-2565823/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
Neurodevelopmental disorders (NDDs) are polygenic in nature and copy number variants (CNVs) are ideal candidates to study the nature of this polygenic risk. The disruption of striatal circuits is considered a central mechanism in NDDs. The 16p11.2 hemi-deletion (16p11.2 del) is one of the most common CNVs associated with NDD, and 16p11.2 del/+ mice show sex-specific striatum-related behavioral phenotypes. However, the critical genes among the 27 genes in the 16p11.2 region that underlie these phenotypes remain unknown. Previously, we applied a novel strategy to identify candidate genes associated with the sex-specific phenotypes of 16p11.2 del/+ mice and identified 3 genes of particular importance within the deleted region: thousand and one amino acid protein kinase 2 (Taok2), seizure-related 6 homolog-like 2 (Sez6l2), and major vault protein (Mvp). Using the CRISPR/Cas9 technique, we generated 3 gene hemi-deletion (3g del/+) mice carrying null mutations in Taok2, Sez6l2, and Mvp. We assessed striatum-dependent phenotypes of these 3g del/+ mice in behavioral, molecular, and imaging studies. Hemi-deletion of Taok2, Sez6l2, and Mvp induces sex-specific behavioral alterations in striatum-dependent behavioral tasks, specifically male-specific hyperactivity and impaired motivation for reward seeking, resembling behavioral phenotypes of 16p11.2 del/+ mice. Moreover, RNAseq analysis revealed that 3g del/+ mice exhibit gene expression changes in the striatum similar to 16p11.2 del/+ mice, but only in males. Pathway analysis identified ribosomal dysfunction and translation dysregulation as molecular mechanisms underlying male-specific, striatum-dependent behavioral alterations. Together, the mutation of 3 genes within the 16p11.2 region phenocopies striatal sex-specific phenotypes of 16p11.2 del/+ mice, unlike single gene mutation studies. These results support the importance of a polygenic approach to study NDDs and our novel strategy to identify genes of interest using gene expression patterns in brain regions, such as the striatum, which are impacted in these disorders.
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Kim J, Vanrobaeys Y, Peterson Z, Kelvington B, Gaine ME, Nickl-Jockschat T, Abel T. Dissecting 16p11.2 hemi-deletion to study sex-specific striatal phenotypes of neurodevelopmental disorders. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.02.09.527866. [PMID: 36798381 PMCID: PMC9934710 DOI: 10.1101/2023.02.09.527866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
Neurodevelopmental disorders (NDDs) are polygenic in nature and copy number variants (CNVs) are ideal candidates to study the nature of this polygenic risk. The disruption of striatal circuits is considered a central mechanism in NDDs. The 16p11.2 hemi-deletion (16p11.2 del) is one of the most common CNVs associated with NDD, and 16p11.2 del/+ mice show sex-specific striatum-related behavioral phenotypes. However, the critical genes among the 27 genes in the 16p11.2 region that underlie these phenotypes remain unknown. Previously, we applied a novel strategy to identify candidate genes associated with the sex-specific phenotypes of 16p11.2 del/+ mice and identified 3 genes of particular importance within the deleted region: thousand and one amino acid protein kinase 2 ( Taok2 ), seizure-related 6 homolog-like 2 ( Sez6l2 ), and major vault protein ( Mvp ). Using the CRISPR/Cas9 technique, we generated 3 gene hemi-deletion (3g del/+) mice carrying null mutations in Taok2, Sez6l2 , and Mvp . We assessed striatum-dependent phenotypes of these 3g del/+ mice in behavioral, molecular, and imaging studies. Hemi-deletion of Taok2, Sez6l2 , and Mvp induces sex-specific behavioral alterations in striatum-dependent behavioral tasks, specifically male-specific hyperactivity and impaired motivation for reward seeking, resembling behavioral phenotypes of 16p11.2 del/+ mice. Moreover, RNAseq analysis revealed that 3g del/+ mice exhibit gene expression changes in the striatum similar to 16p11.2 del/+ mice, but only in males. Pathway analysis identified ribosomal dysfunction and translation dysregulation as molecular mechanisms underlying male-specific, striatum-dependent behavioral alterations. Together, the mutation of 3 genes within the 16p11.2 region phenocopies striatal sex-specific phenotypes of 16p11.2 del/+ mice, unlike single gene mutation studies. These results support the importance of a polygenic approach to study NDDs and our novel strategy to identify genes of interest using gene expression patterns in brain regions, such as the striatum, which are impacted in these disorders.
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10
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Wu J, Zhou Z, Li J, Liu H, Zhang H, Zhang J, Huang W, He Y, Zhu S, Huo M, Liu M, Zhang C. CHD4 promotes acquired chemoresistance and tumor progression by activating the MEK/ERK axis. Drug Resist Updat 2023; 66:100913. [PMID: 36603431 DOI: 10.1016/j.drup.2022.100913] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 12/13/2022] [Accepted: 12/22/2022] [Indexed: 12/27/2022]
Abstract
AIMS Chemoresistance remains a major challenge in gastric cancer (GC). Chromodomain helicase DNA-binding protein 4 (CHD4) mediated chromatin remodeling plays critical roles in various tumor types, but its role in chemoresistance in GC remains uncharacterized. METHODS CHD4 expression was examined by immunohistochemistry and Western blotting. The role of CHD4 on cell proliferation and chemoresistance of GC was examined in vitro and in vivo. Immunoprecipitation and liquid chromatography-mass spectrometry were used to identify CHD4-binding proteins and a proximity ligation assay was used to explore protein-protein interaction. RESULTS Chemoresistance is associated with upregulation of CHD4 in the tumor tissues of GC patients. Overexpression of CHD4 increased chemoresistance and cell proliferation. Knockdown of CHD4 induced cell apoptosis and cell cycle arrest. CHD4 mediates the decrease of the intracellular concentration of cisplatin by inducing drug efflux. Additionally, CHD4 promotes the interaction between ERK1/2 and MEK1/2, resulting in continuous activation of MEK/ERK pathway. Knockdown of CHD4 in GC increased sensitivity to chemotherapy and suppressed tumor growth in a mouse xenograft model. CONCLUSIONS This study identifies CHD4 dominated multi-drug efflux as a promising therapeutic target for overcoming acquired chemoresistance in GC.
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Affiliation(s)
- Jing Wu
- Digestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-sen University, No. 628 Zhenyuan Road, Shenzhen 518107, Guangdong, China; Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital of Sun Yat-sen University, No. 628 Zhenyuan Road, Shenzhen 518107, Guangdong, China; Department of Gastrointestinal Surgery of the First Affiliated Hospital of Sun Yat-sen University, No. 58 Zhongshan 2nd Road, Guangzhou 510080, Guangdong, China
| | - Zhijun Zhou
- Digestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-sen University, No. 628 Zhenyuan Road, Shenzhen 518107, Guangdong, China; Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital of Sun Yat-sen University, No. 628 Zhenyuan Road, Shenzhen 518107, Guangdong, China
| | - Jin Li
- Digestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-sen University, No. 628 Zhenyuan Road, Shenzhen 518107, Guangdong, China; Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital of Sun Yat-sen University, No. 628 Zhenyuan Road, Shenzhen 518107, Guangdong, China
| | - Huifang Liu
- Digestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-sen University, No. 628 Zhenyuan Road, Shenzhen 518107, Guangdong, China; Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital of Sun Yat-sen University, No. 628 Zhenyuan Road, Shenzhen 518107, Guangdong, China
| | - Huaqi Zhang
- Digestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-sen University, No. 628 Zhenyuan Road, Shenzhen 518107, Guangdong, China; Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital of Sun Yat-sen University, No. 628 Zhenyuan Road, Shenzhen 518107, Guangdong, China
| | - Junchang Zhang
- Digestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-sen University, No. 628 Zhenyuan Road, Shenzhen 518107, Guangdong, China; Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital of Sun Yat-sen University, No. 628 Zhenyuan Road, Shenzhen 518107, Guangdong, China
| | - Weibin Huang
- Department of Gastrointestinal Surgery of the First Affiliated Hospital of Sun Yat-sen University, No. 58 Zhongshan 2nd Road, Guangzhou 510080, Guangdong, China
| | - Yulong He
- Digestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-sen University, No. 628 Zhenyuan Road, Shenzhen 518107, Guangdong, China; Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital of Sun Yat-sen University, No. 628 Zhenyuan Road, Shenzhen 518107, Guangdong, China; Department of Gastrointestinal Surgery of the First Affiliated Hospital of Sun Yat-sen University, No. 58 Zhongshan 2nd Road, Guangzhou 510080, Guangdong, China
| | - Shiyu Zhu
- Digestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-sen University, No. 628 Zhenyuan Road, Shenzhen 518107, Guangdong, China; Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital of Sun Yat-sen University, No. 628 Zhenyuan Road, Shenzhen 518107, Guangdong, China
| | - Mingyu Huo
- Digestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-sen University, No. 628 Zhenyuan Road, Shenzhen 518107, Guangdong, China; Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital of Sun Yat-sen University, No. 628 Zhenyuan Road, Shenzhen 518107, Guangdong, China.
| | - Mingyang Liu
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China.
| | - Changhua Zhang
- Digestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-sen University, No. 628 Zhenyuan Road, Shenzhen 518107, Guangdong, China; Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital of Sun Yat-sen University, No. 628 Zhenyuan Road, Shenzhen 518107, Guangdong, China.
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11
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Correlation of expression of Major Vault Protein with androgen receptor and immune checkpoint protein B7-H3, and with poor prognosis in prostate cancer. Pathol Res Pract 2023; 241:154243. [PMID: 36481650 DOI: 10.1016/j.prp.2022.154243] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 11/23/2022] [Indexed: 11/27/2022]
Abstract
Prostate cancer diagnosis and early stratification is an important aspect to avoid undertreatment of high-risk prostate cancer patients. Major Vault Protein (MVP) has been proposed as a prognostic biomarker in prostate cancer. PTEN and the immune checkpoint protein B7-H3 interact with MVP and are important in prostate cancer progression and therapy response. We evaluated the expression of MVP by immunohistochemistry of tissue microarray samples from a retrospective cohort consisting of 119 prostate cancer patients. We correlated the protein expression of MVP with clinicopathological characteristics, and protein expression of androgen receptor (AR), PTEN, immune checkpoint proteins B7-H3 and PD-L1. We found MVP to be expressed in 53 % of prostate tumors, and correlated positively with biochemical recurrence (ρ = 0.211/p = 0.021). Furthermore, we found positive correlation of MVP expression with expression of AR (ρ = 0.244/p = 0.009) and the immune checkpoint protein B7-H3 (ρ = 0.200/p = 0.029), but not with PD-L1 (ρ = 0.152/p = 0.117) or PTEN expression (ρ = - 0.034/p = 0.721). Our findings support the notion that expression of MVP is associated with poor prognosis in prostate cancer. The correlation between MVP and immune checkpoint protein B7-H3 in prostate cancer suggests a role for MVP in immunoregulation and drug resistance.
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12
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Small but Powerful: The Human Vault RNAs as Multifaceted Modulators of Pro-Survival Characteristics and Tumorigenesis. Cancers (Basel) 2022; 14:cancers14112787. [PMID: 35681764 PMCID: PMC9179338 DOI: 10.3390/cancers14112787] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 05/23/2022] [Accepted: 06/01/2022] [Indexed: 12/04/2022] Open
Abstract
Simple Summary Small non-protein-coding RNAs have been recognized as valuable regulators of gene expression in all three domains of life. Particularly in multicellular organisms, ncRNAs-mediated gene expression control has evolved as a central principle of cellular homeostasis. Thus, it is not surprising that non-coding RNA misregulation has been linked to various diseases. Here, we review the contributions of the four human vault RNAs to cellular proliferation, apoptosis and cancer biology. Abstract The importance of non-coding RNAs for regulating gene expression has been uncovered in model systems spanning all three domains of life. More recently, their involvement in modulating signal transduction, cell proliferation, tumorigenesis and cancer progression has also made them promising tools and targets for oncotherapy. Recent studies revealed a class of highly conserved small ncRNAs, namely vault RNAs, as regulators of several cellular homeostasis mechanisms. The human genome encodes four vault RNA paralogs that share significant sequence and structural similarities, yet they seem to possess distinct roles in mammalian cells. The alteration of vault RNA expression levels has frequently been observed in cancer tissues, thus hinting at a putative role in orchestrating pro-survival characteristics. Over the last decade, significant advances have been achieved in clarifying the relationship between vault RNA and cellular mechanisms involved in cancer development. It became increasingly clear that vault RNAs are involved in controlling apoptosis, lysosome biogenesis and function, as well as autophagy in several malignant cell lines, most likely by modulating signaling pathways (e.g., the pro-survival MAPK cascade). In this review, we discuss the identified and known functions of the human vault RNAs in the context of cell proliferation, tumorigenesis and chemotherapy resistance.
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13
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Kulkarni R, Wiemer EAC, Chang W. Role of Lipid Rafts in Pathogen-Host Interaction - A Mini Review. Front Immunol 2022; 12:815020. [PMID: 35126371 PMCID: PMC8810822 DOI: 10.3389/fimmu.2021.815020] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Accepted: 12/31/2021] [Indexed: 12/25/2022] Open
Abstract
Lipid rafts, also known as microdomains, are important components of cell membranes and are enriched in cholesterol, glycophospholipids and receptors. They are involved in various essential cellular processes, including endocytosis, exocytosis and cellular signaling. Receptors are concentrated at lipid rafts, through which cellular signaling can be transmitted. Pathogens exploit these signaling mechanisms to enter cells, proliferate and egress. However, lipid rafts also play an important role in initiating antimicrobial responses by sensing pathogens via clustered pathogen-sensing receptors and triggering downstream signaling events such as programmed cell death or cytokine production for pathogen clearance. In this review, we discuss how both host and pathogens use lipid rafts and associated proteins in an arms race to survive. Special attention is given to the involvement of the major vault protein, the main constituent of a ribonucleoprotein complex, which is enriched in lipid rafts upon infection with vaccinia virus.
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Affiliation(s)
- Rakesh Kulkarni
- Molecular and Cell Biology, Taiwan International Graduate Program, National Defense Medical Center, Academia Sinica and Graduate Institute of Life Science, Taipei, Taiwan
- Institute of Molecular Biology, Academia Sinica, Taipei, Taiwan
- *Correspondence: Rakesh Kulkarni, ; Wen Chang,
| | - Erik A. C. Wiemer
- Medical Oncology, Erasmus MC Cancer Institute, University Medical Center, Rotterdam, Netherlands
| | - Wen Chang
- Institute of Molecular Biology, Academia Sinica, Taipei, Taiwan
- *Correspondence: Rakesh Kulkarni, ; Wen Chang,
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14
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Martina L, Asselman C, Thery F, Boucher K, Delhaye L, Maia TM, Dermaut B, Eyckerman S, Impens F. Proteome Profiling of RNF213 Depleted Cells Reveals Nitric Oxide Regulator DDAH1 Antilisterial Activity. Front Cell Infect Microbiol 2021; 11:735416. [PMID: 34804992 PMCID: PMC8595287 DOI: 10.3389/fcimb.2021.735416] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 10/08/2021] [Indexed: 01/25/2023] Open
Abstract
RNF213 is a large, poorly characterized interferon-induced protein. Mutations in RNF213 are associated with predisposition for Moyamoya disease (MMD), a rare cerebrovascular disorder. Recently, RNF213 was found to have broad antimicrobial activity in vitro and in vivo, yet the molecular mechanisms behind this function remain unclear. Using mass spectrometry-based proteomics and validation by real-time PCR we report here that knockdown of RNF213 leads to transcriptional upregulation of MVP and downregulation of CYR61, in line with reported pro- and anti-bacterial activities of these proteins. Knockdown of RNF213 also results in downregulation of DDAH1, which we discover to exert antimicrobial activity against Listeria monocytogenes infection. DDAH1 regulates production of nitric oxide (NO), a molecule with both vascular and antimicrobial effects. We show that NO production is reduced in macrophages from RNF213 KO mice, suggesting that RNF213 controls Listeria infection through regulation of DDAH1 transcription and production of NO. Our findings propose a potential mechanism for the antilisterial activity of RNF213 and highlight NO as a potential link between RNF213-mediated immune responses and the development of MMD.
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Affiliation(s)
- Lia Martina
- VIB-UGent Center for Medical Biotechnology, VIB, Ghent, Belgium.,Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
| | - Caroline Asselman
- VIB-UGent Center for Medical Biotechnology, VIB, Ghent, Belgium.,Department of Biomolecular Medicine, Ghent University, Ghent, Belgium.,Center for Medical Genetics, Ghent University Hospital, Ghent, Belgium
| | - Fabien Thery
- VIB-UGent Center for Medical Biotechnology, VIB, Ghent, Belgium.,Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
| | - Katie Boucher
- VIB-UGent Center for Medical Biotechnology, VIB, Ghent, Belgium.,Department of Biomolecular Medicine, Ghent University, Ghent, Belgium.,VIB Proteomics Core, VIB, Ghent, Belgium
| | - Louis Delhaye
- VIB-UGent Center for Medical Biotechnology, VIB, Ghent, Belgium.,Department of Biomolecular Medicine, Ghent University, Ghent, Belgium.,Center for Medical Genetics, Ghent University Hospital, Ghent, Belgium.,Cancer Research Institute Ghent (CRIG), Ghent University, Ghent, Belgium
| | - Teresa M Maia
- VIB-UGent Center for Medical Biotechnology, VIB, Ghent, Belgium.,Department of Biomolecular Medicine, Ghent University, Ghent, Belgium.,VIB Proteomics Core, VIB, Ghent, Belgium
| | - Bart Dermaut
- VIB-UGent Center for Medical Biotechnology, VIB, Ghent, Belgium.,Department of Biomolecular Medicine, Ghent University, Ghent, Belgium.,Center for Medical Genetics, Ghent University Hospital, Ghent, Belgium
| | - Sven Eyckerman
- VIB-UGent Center for Medical Biotechnology, VIB, Ghent, Belgium.,Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
| | - Francis Impens
- VIB-UGent Center for Medical Biotechnology, VIB, Ghent, Belgium.,Department of Biomolecular Medicine, Ghent University, Ghent, Belgium.,VIB Proteomics Core, VIB, Ghent, Belgium
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15
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Major Vault Protein Inhibits Porcine Reproductive and Respiratory Syndrome Virus Infection in CRL2843 CD163 Cell Lines and Primary Porcine Alveolar Macrophages. Viruses 2021; 13:v13112267. [PMID: 34835073 PMCID: PMC8618244 DOI: 10.3390/v13112267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 11/02/2021] [Accepted: 11/09/2021] [Indexed: 11/16/2022] Open
Abstract
Porcine reproductive and respiratory syndrome (PRRS), a significant viral infectious disease that commonly occurs among farmed pigs, leads to considerable economic losses to the swine industry worldwide. Major vault protein (MVP) is a host factor that induces type Ⅰ interferon (IFN) production. In this study, we evaluated the effect of MVP on PRRSV infection in CRL2843CD163 cell lines and porcine alveolar macrophages (PAMs). Our results showed that MVP expression was downregulated by PRRSV infection. Adenoviral overexpression of MVP inhibited PRRSV replication, whereas the siRNA knockdown of MVP promoted PRRSV replication. In addition, MVP knockdown has an adverse effect on the inhibitive role of MVP overexpression on PRRSV replication. Moreover, MVP could induce the expression of type Ⅰ IFNs and IFN-stimulated gene 15 (ISG15) in PRRSV-infected PAMs. Based on these results, MVP may be a potential molecular target of drugs for the effective prevention and treatment of PRRSV infection.
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16
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Noh KH, Lee SH, Lee H, Jeong AJ, Kim KO, Shin HM, Kim HR, Park MJ, Park JB, Lee J, Ye SK. Novel cancer stem cell marker MVP enhances temozolomide-resistance in glioblastoma. Transl Oncol 2021; 15:101255. [PMID: 34742152 PMCID: PMC8577150 DOI: 10.1016/j.tranon.2021.101255] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 10/18/2021] [Indexed: 12/20/2022] Open
Abstract
MVP level were up-regulated in temozolomide-resistant glioblastoma cells and glioblastoma stem cells. MVP decreased the sensitization to temozolomide of glioblastoma cells and glioblastoma stem cells. Knockdown of MVP reduced temozolomide-resistance, sphere formation ability and invasive capacity. Negative correlation between MVP expression and prognosis of glioblastoma patients
The resistance of highly aggressive glioblastoma multiforme (GBM) to chemotherapy is a major clinical problem resulting in a poor prognosis. GBM contains a rare population of self-renewing cancer stem cells (CSCs) that proliferate, spurring the growth of new tumors, and evade chemotherapy. In cancer, major vault protein (MVP) is thought to contribute to drug resistance. However, the role of MVP as CSCs marker remains unknown and whether MVP could sensitize GBM cells to Temozolomide (TMZ) also is unclear. We found that sensitivity to TMZ was suppressed by significantly increasing the MVP expression in GBM cells with TMZ resistance. Also, MVP was associated with the expression of other multidrug-resistant proteins in tumorsphere of TMZ-resistant GBM cell, and was highly co-expressed with CSC markers in tumorsphere culture. On the other hands, knockdown of MVP resulted in reduced sphere formation and invasive capacity. Moreover, high expression of MVP was associated with tumor malignancy and survival rate in glioblastoma patients. Our study describes that MVP is a potentially novel maker for glioblastoma stem cells and may be useful as a target for preventing TMZ resistance in GBM patients.
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Affiliation(s)
- Kum Hee Noh
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Republic of Korea; Biomedical Science Project (BK21PLUS), Seoul National University College of Medicine, Seoul, Republic of Korea; Department of Pharmacology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Song-Hee Lee
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Republic of Korea; Biomedical Science Project (BK21PLUS), Seoul National University College of Medicine, Seoul, Republic of Korea; Department of Pharmacology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Haeri Lee
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Republic of Korea; Department of Pharmacology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Ae Jin Jeong
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Republic of Korea; Department of Pharmacology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Kyu Oh Kim
- Department of Fiber-System Engineering, Dankook University, Gyeonggi-do, Republic of Korea
| | - Hyun Mu Shin
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Republic of Korea; Biomedical Science Project (BK21PLUS), Seoul National University College of Medicine, Seoul, Republic of Korea; Wide River Institute of Immunology, Seoul National University, Hongcheon, 25159, Republic of Korea
| | - Hang-Rae Kim
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Republic of Korea; Biomedical Science Project (BK21PLUS), Seoul National University College of Medicine, Seoul, Republic of Korea; Wide River Institute of Immunology, Seoul National University, Hongcheon, 25159, Republic of Korea; Department of Anatomy and Cell Biology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Myung-Jin Park
- Divisions of Radiation Cancer Research, Korea Institute of Radiological and Medical Sciences, Seoul, Republic of Korea
| | - Jong Bae Park
- Department of Clinical Research, Research Institute and Hospital, National Cancer Center, Goyang, Republic of Korea
| | - Jiyoung Lee
- Advanced Multidisciplinary Research Cluster, Institute of Research, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Sang-Kyu Ye
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Republic of Korea; Biomedical Science Project (BK21PLUS), Seoul National University College of Medicine, Seoul, Republic of Korea; Ischemic/Hypoxic Disease Institute, Seoul National University College of Medicine, Seoul, Republic of Korea; Neuro-Immune Information Storage Network Research Center, Seoul National University College of Medicine, Seoul, Republic of Korea; Department of Pharmacology, Seoul National University College of Medicine, Seoul, Republic of Korea; Department of Fiber-System Engineering, Dankook University, Gyeonggi-do, Republic of Korea; Department of Anatomy and Cell Biology, Seoul National University College of Medicine, Seoul, Republic of Korea.
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17
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Wakatsuki S, Araki T. Novel Molecular Basis for Synapse Formation: Small Non-coding Vault RNA Functions as a Riboregulator of MEK1 to Modulate Synaptogenesis. Front Mol Neurosci 2021; 14:748721. [PMID: 34630040 PMCID: PMC8498202 DOI: 10.3389/fnmol.2021.748721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 09/06/2021] [Indexed: 11/13/2022] Open
Abstract
Small non-coding vault RNAs (vtRNAs) have been described as a component of the vault complex, a hollow-and-barrel-shaped ribonucleoprotein complex found in most eukaryotes. It has been suggested that the function of vtRNAs might not be limited to simply maintaining the structure of the vault complex. Despite the increasing research on vtRNAs, little is known about their physiological functions. Recently, we have shown that murine vtRNA (mvtRNA) up-regulates synaptogenesis by activating the mitogen activated protein kinase (MAPK) signaling pathway. mvtRNA binds to and activates mitogen activated protein kinase 1 (MEK1), and thereby enhances MEK1-mediated extracellular signal-regulated kinase activation. Here, we introduce the regulatory mechanism of MAPK signaling in synaptogenesis by vtRNAs and discuss the possibility as a novel molecular basis for synapse formation.
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Affiliation(s)
- Shuji Wakatsuki
- Department of Peripheral Nervous System Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Toshiyuki Araki
- Department of Peripheral Nervous System Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan
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18
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Wakatsuki S, Takahashi Y, Shibata M, Adachi N, Numakawa T, Kunugi H, Araki T. Small noncoding vault RNA modulates synapse formation by amplifying MAPK signaling. J Cell Biol 2021; 220:211679. [PMID: 33439240 PMCID: PMC7809882 DOI: 10.1083/jcb.201911078] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 09/04/2020] [Accepted: 12/02/2020] [Indexed: 12/30/2022] Open
Abstract
The small noncoding vault RNA (vtRNA) is a component of the vault complex, a ribonucleoprotein complex found in most eukaryotes. Emerging evidence suggests that vtRNAs may be involved in the regulation of a variety of cellular functions when unassociated with the vault complex. Here, we demonstrate a novel role for vtRNA in synaptogenesis. Using an in vitro synapse formation model, we show that murine vtRNA (mvtRNA) promotes synapse formation by modulating the MAPK signaling pathway. mvtRNA is transported to the distal region of neurites as part of the vault complex. Interestingly, mvtRNA is released from the vault complex in the neurite by a mitotic kinase Aurora-A–dependent phosphorylation of MVP, a major protein component of the vault complex. mvtRNA binds to and activates MEK1 and thereby enhances MEK1-mediated ERK activation in neurites. These results suggest the existence of a regulatory mechanism of the MAPK signaling pathway by vtRNAs as a new molecular basis for synapse formation.
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Affiliation(s)
- Shuji Wakatsuki
- Department of Peripheral Nervous System Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Yoko Takahashi
- Department of Peripheral Nervous System Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Megumi Shibata
- Department of Peripheral Nervous System Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Naoki Adachi
- Department of Mental Disorder Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan.,Department of Biomedical Chemistry, School of Science and Technology, Kwansei Gakuin University, Hyogo, Japan
| | - Tadahiro Numakawa
- Department of Mental Disorder Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan.,Department of Cell Modulation, Institute of Molecular Embryology and Genetics, Kumamoto University, Kumamoto, Japan
| | - Hiroshi Kunugi
- Department of Mental Disorder Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Toshiyuki Araki
- Department of Peripheral Nervous System Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan
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19
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CD73 induces gemcitabine resistance in pancreatic ductal adenocarcinoma: A promising target with non-canonical mechanisms. Cancer Lett 2021; 519:289-303. [PMID: 34302921 DOI: 10.1016/j.canlet.2021.07.024] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 07/02/2021] [Accepted: 07/15/2021] [Indexed: 12/26/2022]
Abstract
CD73, a cell surface-localized ecto-5'-nucleotidase, is the major enzymatic source of extracellular adenosine. Canonically, it plays multiple roles in cancer-related processes via its metabolite. As a druggable target, clinical trials targeting CD73 in various malignant diseases are currently ongoing. Here, we report the ecto-5'-nucleotidase-independent functions of CD73 in pancreatic ductal adenocarcinoma (PDAC). Our findings support that the elevated expression of CD73 in PDAC cells promotes gemcitabine (GEM) resistance by activating AKT. We discovered that a large amount of intracellular CD73 are localized in the endoplasmic reticulum membrane. Intracellular CD73 physically interacts with major vault protein to activate the SRC-AKT circuit. Troglitazone (TGZ) is a peroxisome proliferator-activated receptor gamma agonist that could inhibit the expression of CD73. The administration of TGZ markedly enhances sensitivity to GEM via downregulating CD73 in PDAC. Our findings support that CD73 could be targeted to overcome chemoresistance in PDAC.
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20
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Wang W, Yan T, Guo W, Niu J, Zhao Z, Sun K, Zhang H, Yu Y, Ren T. Constitutive GLI1 expression in chondrosarcoma is regulated by major vault protein via mTOR/S6K1 signaling cascade. Cell Death Differ 2021; 28:2221-2237. [PMID: 33637972 PMCID: PMC8257592 DOI: 10.1038/s41418-021-00749-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 02/01/2021] [Accepted: 02/04/2021] [Indexed: 01/31/2023] Open
Abstract
Hedgehog signaling plays a pivotal role in embryonic pattern formation and diverse aspects of the postnatal biological process. Perturbation of the hedgehog pathway and overexpression of GLI1, a downstream transcription factor in the hedgehog pathway, are highly relevant to several malignancies including chondrosarcoma (CS). We previously found that knocking down expression of GLI1 attenuates the disrupted Indian hedgehog (IHH) signal pathway and suppresses cell survival in human CS cells. However, the underlying mechanisms regulating the expression of GLI1 are still unknown. Here, we demonstrated the implication of GLI1 in SMO-independent pathways in CS cells. A GLI1 binding protein, major vault protein (MVP), was identified using the affinity purification method. MVP promoted the nuclear transport and stabilization of GLI1 by compromising the binding affinity of GLI1 with suppressor of fused homolog (SUFU) and increased GLI1 expression via mTOR/S6K1 signaling cascade. Functionally, knockdown of MVP suppressed cell growth and induced apoptosis. Simultaneous inhibition of MVP and GLI1 strongly inhibits the growth of CS in vitro and in vivo. Moreover, IHC results showed that MVP, GLI1, and P-p70S6K1 were highly expressed and positively correlated with each other in 71 human CS tissues. Overall, our findings revealed a novel regulating mechanism for HH-independent GLI1 expression and provide a rationale for combination therapy in patients with advanced CS.
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Affiliation(s)
- Wei Wang
- Musculoskeletal Tumor Center, Peking University People's Hospital, Beijing, China
- Beijing Key Laboratory of Musculoskeletal Tumor, Beijing, China
| | - Taiqiang Yan
- Musculoskeletal Tumor Center, Peking University People's Hospital, Beijing, China.
- Beijing Key Laboratory of Musculoskeletal Tumor, Beijing, China.
| | - Wei Guo
- Musculoskeletal Tumor Center, Peking University People's Hospital, Beijing, China.
- Beijing Key Laboratory of Musculoskeletal Tumor, Beijing, China.
| | - Jianfang Niu
- Musculoskeletal Tumor Center, Peking University People's Hospital, Beijing, China
- Beijing Key Laboratory of Musculoskeletal Tumor, Beijing, China
| | - Zhiqing Zhao
- Musculoskeletal Tumor Center, Peking University People's Hospital, Beijing, China
- Beijing Key Laboratory of Musculoskeletal Tumor, Beijing, China
| | - Kunkun Sun
- Department of Pathology, Peking University People's Hospital, Beijing, China
| | - Hongliang Zhang
- Musculoskeletal Tumor Center, Peking University People's Hospital, Beijing, China
- Beijing Key Laboratory of Musculoskeletal Tumor, Beijing, China
| | - Yiyang Yu
- Musculoskeletal Tumor Center, Peking University People's Hospital, Beijing, China
- Beijing Key Laboratory of Musculoskeletal Tumor, Beijing, China
| | - Tingting Ren
- Musculoskeletal Tumor Center, Peking University People's Hospital, Beijing, China
- Beijing Key Laboratory of Musculoskeletal Tumor, Beijing, China
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21
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Yuan L, Zhao N, Wang J, Liu Y, Meng L, Guo S, Wiemer EA, Chen Q, Mao Y, Ben J, Ma J. Major vault protein (MVP) negatively regulates osteoclastogenesis via calcineurin-NFATc1 pathway inhibition. Theranostics 2021; 11:7247-7261. [PMID: 34158848 PMCID: PMC8210610 DOI: 10.7150/thno.58468] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 05/10/2021] [Indexed: 02/06/2023] Open
Abstract
Rationale: Bone homeostasis is maintained by a balanced interplay of osteoblasts and osteoclasts. Osteoclasts are derived from monocyte/macrophage lineage. Major vault protein (MVP) is known to promote apoptosis and prevent metabolic diseases in macrophage. However, whether MVP is involved in osteoclastogenesis is unknown. Here, we identified an important function of MVP as a negative regulator of osteoclastogenesis and its therapeutic potential in preventing bone loss. Methods: Expression of MVP in osteoclasts was investigated in human tumor tissues with immunohistochemical staining. Next, we generated total body (Mvp-/- ) and monocyte-specific (Mvpf/fLyz2-Cre) MVP gene knockout mice to observe bone phenotype and osteoclastogenesis using micro-CT and bone histomorphometry. Moreover, we examined the effects of MVP on osteoclast differentiation, bone resorption, NFATc1 activation and calcium oscillations in vitro. Finally, we explored the clinical potential of targeting MVP in two osteoporosis mouse models and used an adeno-associated virus (AAV) gene to overexpress MVP locally in mice. Results: We found that Mvp-/- and Mvpf/fLyz2-Cre mice both exhibited osteoporosis-like phenotypes. MVP-deficiency also enhanced calcineurin-NFATc1 signaling and promoted NFATc1 activity, which led to enhanced osteoclastogenesis and bone resorption. Calcineurin inhibition using the small molecule inhibitor FK506 corrected the enhanced osteoclastogenesis in Mvpf/fLyz2-Cre group. Additionally, MVP reexpression in Mvpf/fLyz2-Cre group rescued calcineurin expression. MVP overexpression in wild-type mice prevented pathologic bone loss in mouse models of ovariectomized (OVX) and calvaria-adjacent lipopolysaccharide (LPS)-injected. Conclusions: Our data suggested that MVP negatively regulates osteoclast differentiation and bone resorption via inhibition of calcineurin-NFATc1 signaling. In osteoclast-related bone diseases such as osteoporosis, manipulation of MVP activity may be an attractive therapeutic target.
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Frascotti G, Galbiati E, Mazzucchelli M, Pozzi M, Salvioni L, Vertemara J, Tortora P. The Vault Nanoparticle: A Gigantic Ribonucleoprotein Assembly Involved in Diverse Physiological and Pathological Phenomena and an Ideal Nanovector for Drug Delivery and Therapy. Cancers (Basel) 2021; 13:cancers13040707. [PMID: 33572350 PMCID: PMC7916137 DOI: 10.3390/cancers13040707] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 02/03/2021] [Accepted: 02/03/2021] [Indexed: 12/12/2022] Open
Abstract
Simple Summary In recent decades, a molecular complex referred to as vault nanoparticle has attracted much attention by the scientific community, due to its unique properties. At the molecular scale, it is a huge assembly consisting of 78 97-kDa polypeptide chains enclosing an internal cavity, wherein enzymes involved in DNA integrity maintenance and some small noncoding RNAs are accommodated. Basically, two reasons justify this interest. On the one hand, this complex represents an ideal tool for the targeted delivery of drugs, provided it is suitably engineered, either chemically or genetically; on the other hand, it has been shown to be involved in several cellular pathways and mechanisms that most often result in multidrug resistance. It is therefore expected that a better understanding of the physiological roles of this ribonucleoproteic complex may help develop new therapeutic strategies capable of coping with cancer progression. Here, we provide a comprehensive review of the current knowledge. Abstract The vault nanoparticle is a eukaryotic ribonucleoprotein complex consisting of 78 individual 97 kDa-“major vault protein” (MVP) molecules that form two symmetrical, cup-shaped, hollow halves. It has a huge size (72.5 × 41 × 41 nm) and an internal cavity, wherein the vault poly(ADP-ribose) polymerase (vPARP), telomerase-associated protein-1 (TEP1), and some small untranslated RNAs are accommodated. Plenty of literature reports on the biological role(s) of this nanocomplex, as well as its involvement in diseases, mostly oncological ones. Nevertheless, much has still to be understood as to how vault participates in normal and pathological mechanisms. In this comprehensive review, current understanding of its biological roles is discussed. By different mechanisms, vault’s individual components are involved in major cellular phenomena, which result in protection against cellular stresses, such as DNA-damaging agents, irradiation, hypoxia, hyperosmotic, and oxidative conditions. These diverse cellular functions are accomplished by different mechanisms, mainly gene expression reprogramming, activation of proliferative/prosurvival signaling pathways, export from the nucleus of DNA-damaging drugs, and import of specific proteins. The cellular functions of this nanocomplex may also result in the onset of pathological conditions, mainly (but not exclusively) tumor proliferation and multidrug resistance. The current understanding of its biological roles in physiological and pathological processes should also provide new hints to extend the scope of its exploitation as a nanocarrier for drug delivery.
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Hahne JC, Lampis A, Valeri N. Vault RNAs: hidden gems in RNA and protein regulation. Cell Mol Life Sci 2021; 78:1487-1499. [PMID: 33063126 PMCID: PMC7904556 DOI: 10.1007/s00018-020-03675-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 09/27/2020] [Accepted: 10/05/2020] [Indexed: 12/11/2022]
Abstract
Non-coding RNAs are important regulators of differentiation during embryogenesis as well as key players in the fine-tuning of transcription and furthermore, they control the post-transcriptional regulation of mRNAs under physiological conditions. Deregulated expression of non-coding RNAs is often identified as one major contribution in a number of pathological conditions. Non-coding RNAs are a heterogenous group of RNAs and they represent the majority of nuclear transcripts in eukaryotes. An evolutionary highly conserved sub-group of non-coding RNAs is represented by vault RNAs, named since firstly discovered as component of the largest known ribonucleoprotein complexes called "vault". Although they have been initially described 30 years ago, vault RNAs are largely unknown and their molecular role is still under investigation. In this review we will summarize the known functions of vault RNAs and their involvement in cellular mechanisms.
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Affiliation(s)
- Jens Claus Hahne
- Division of Molecular Pathology, The Institute of Cancer Research, London, UK.
- Centre for Evolution and Cancer, The Institute of Cancer Research, London, UK.
| | - Andrea Lampis
- Division of Molecular Pathology, The Institute of Cancer Research, London, UK
- Centre for Evolution and Cancer, The Institute of Cancer Research, London, UK
| | - Nicola Valeri
- Division of Molecular Pathology, The Institute of Cancer Research, London, UK
- Centre for Evolution and Cancer, The Institute of Cancer Research, London, UK
- Department of Medicine, The Royal Marsden NHS Foundation Trust, London, UK
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24
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Sluzalska KD, Slawski J, Sochacka M, Lampart A, Otlewski J, Zakrzewska M. Intracellular partners of fibroblast growth factors 1 and 2 - implications for functions. Cytokine Growth Factor Rev 2020; 57:93-111. [PMID: 32475760 DOI: 10.1016/j.cytogfr.2020.05.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 05/04/2020] [Accepted: 05/07/2020] [Indexed: 01/01/2023]
Abstract
Fibroblast growth factors 1 and 2 (FGF1 and FGF2) are mainly considered as ligands of surface receptors through which they regulate a broad spectrum of biological processes. They are secreted in non-canonical way and, unlike other growth factors, they are able to translocate from the endosome to the cell interior. These unique features, as well as the role of the intracellular pool of FGF1 and FGF2, are far from being fully understood. An increasing number of reports address this problem, focusing on the intracellular interactions of FGF1 and 2. Here, we summarize the current state of knowledge of the FGF1 and FGF2 binding partners inside the cell and the possible role of these interactions. The partner proteins are grouped according to their function, including proteins involved in secretion, cell signaling, nucleocytoplasmic transport, binding and processing of nucleic acids, ATP binding, and cytoskeleton assembly. An in-depth analysis of the network of these binding partners could indicate novel, non-classical functions of FGF1 and FGF2 and uncover an additional level of a fine control of the well-known FGF-regulated cellular processes.
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Affiliation(s)
- Katarzyna Dominika Sluzalska
- Department of Protein Engineering, Faculty of Biotechnology, University of Wroclaw, ul. F. Joliot-Curie 14a, 50-383 Wroclaw, Poland
| | - Jakub Slawski
- Department of Biophysics, Faculty of Biotechnology, University of Wroclaw, ul. F. Joliot-Curie 14a, 50-383 Wroclaw, Poland
| | - Martyna Sochacka
- Department of Protein Engineering, Faculty of Biotechnology, University of Wroclaw, ul. F. Joliot-Curie 14a, 50-383 Wroclaw, Poland
| | - Agata Lampart
- Department of Protein Engineering, Faculty of Biotechnology, University of Wroclaw, ul. F. Joliot-Curie 14a, 50-383 Wroclaw, Poland
| | - Jacek Otlewski
- Department of Protein Engineering, Faculty of Biotechnology, University of Wroclaw, ul. F. Joliot-Curie 14a, 50-383 Wroclaw, Poland
| | - Malgorzata Zakrzewska
- Department of Protein Engineering, Faculty of Biotechnology, University of Wroclaw, ul. F. Joliot-Curie 14a, 50-383 Wroclaw, Poland.
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Bracher L, Ferro I, Pulido-Quetglas C, Ruepp MD, Johnson R, Polacek N. Human vtRNA1-1 Levels Modulate Signaling Pathways and Regulate Apoptosis in Human Cancer Cells. Biomolecules 2020; 10:biom10040614. [PMID: 32316166 PMCID: PMC7226377 DOI: 10.3390/biom10040614] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Revised: 04/06/2020] [Accepted: 04/14/2020] [Indexed: 12/17/2022] Open
Abstract
Regulatory non-protein coding RNAs perform a remarkable variety of complex biological functions. Previously, we demonstrated a role of the human non-coding vault RNA1-1 (vtRNA1-1) in inhibiting intrinsic and extrinsic apoptosis in several cancer cell lines. Yet on the molecular level, the function of the vtRNA1-1 is still not fully clear. Here, we created HeLa knock-out cell lines revealing that prolonged starvation triggers elevated levels of apoptosis in the absence of vtRNA1-1 but not in vtRNA1-3 knock-out cells. Next-generation deep sequencing of the mRNome identified the PI3K/Akt pathway and the ERK1/2 MAPK cascade, two prominent signaling axes, to be misregulated in the absence of vtRNA1-1 during starvation-mediated cell death conditions. Expression of vtRNA1-1 mutants identified a short stretch of 24 nucleotides of the vtRNA1-1 central domain as being essential for successful maintenance of apoptosis resistance. This study describes a cell signaling-dependent contribution of the human vtRNA1-1 to starvation-induced programmed cell death.
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Affiliation(s)
- Lisamaria Bracher
- Department of Chemistry and Biochemistry, University of Bern, 3012 Bern, Switzerland; (L.B.); (I.F.); (M.-D.R.)
- Graduate School for Cellular and Biomedical Sciences, University of Bern, 3012 Bern, Switzerland;
| | - Iolanda Ferro
- Department of Chemistry and Biochemistry, University of Bern, 3012 Bern, Switzerland; (L.B.); (I.F.); (M.-D.R.)
| | - Carlos Pulido-Quetglas
- Graduate School for Cellular and Biomedical Sciences, University of Bern, 3012 Bern, Switzerland;
- Department of Medical Oncology, Inselspital, University Hospital and University of Bern, 3010 Bern, Switzerland;
- Department of BioMedical Research, University of Bern, 3008 Bern, Switzerland
| | - Marc-David Ruepp
- Department of Chemistry and Biochemistry, University of Bern, 3012 Bern, Switzerland; (L.B.); (I.F.); (M.-D.R.)
- United Kingdom Dementia Research Institute, King’s College London, Institute of Psychiatry, Psychology and Neuroscience, Maurice Wohl Clinical Neuroscience Institute, London SE5 9NU, UK
| | - Rory Johnson
- Department of Medical Oncology, Inselspital, University Hospital and University of Bern, 3010 Bern, Switzerland;
- Department of BioMedical Research, University of Bern, 3008 Bern, Switzerland
| | - Norbert Polacek
- Department of Chemistry and Biochemistry, University of Bern, 3012 Bern, Switzerland; (L.B.); (I.F.); (M.-D.R.)
- Correspondence:
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26
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Wang W, Xiong L, Wang P, Wang F, Ma Q. Major vault protein plays important roles in viral infection. IUBMB Life 2020; 72:624-631. [PMID: 31769934 PMCID: PMC7165711 DOI: 10.1002/iub.2200] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 10/30/2019] [Indexed: 12/12/2022]
Abstract
Viral replication and related protein expression inside the host cells, and host antiviral immune responses can lead to the occurrence of diverse diseases. With the outbreak of viral infection, a large number of newly diagnosed and died patients infected with various viruses are still reported every year. Viral infection has already been one of the major global public health issues and lead to huge economic and social burdens. Studying of viral pathogenesis is a very important way to find methods for prevention, diagnosis, and cure of viral infection; more evidence has confirmed that major vault protein (MVP) is closely associated with viral infection and pathogenesis, and this review is intended to provide a broad relationship between viruses and MVP to stimulate the interest of related researchers.
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Affiliation(s)
- Wei Wang
- Department of Clinical Laboratory, Puai Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Liang Xiong
- Department of Clinical Laboratory, Liyuan Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Pengyun Wang
- Department of Clinical Laboratory, Liyuan Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Fubing Wang
- Department of Laboratory MedicineZhongnan Hospital of Wuhan UniversityWuhanChina
| | - Qingfeng Ma
- Department of Clinical Laboratory, Liyuan Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
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27
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Qiu Y, Arbogast T, Lorenzo SM, Li H, Tang SC, Richardson E, Hong O, Cho S, Shanta O, Pang T, Corsello C, Deutsch CK, Chevalier C, Davis EE, Iakoucheva LM, Herault Y, Katsanis N, Messer K, Sebat J. Oligogenic Effects of 16p11.2 Copy-Number Variation on Craniofacial Development. Cell Rep 2019; 28:3320-3328.e4. [PMID: 31553903 PMCID: PMC6988705 DOI: 10.1016/j.celrep.2019.08.071] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 07/18/2019] [Accepted: 08/22/2019] [Indexed: 02/06/2023] Open
Abstract
A copy-number variant (CNV) of 16p11.2 encompassing 30 genes is associated with developmental and psychiatric disorders, head size, and body mass. The genetic mechanisms that underlie these associations are not understood. To determine the influence of 16p11.2 genes on development, we investigated the effects of CNV on craniofacial structure in humans and model organisms. We show that deletion and duplication of 16p11.2 have "mirror" effects on specific craniofacial features that are conserved between human and rodent models of the CNV. By testing dosage effects of individual genes on the shape of the mandible in zebrafish, we identify seven genes with significant effects individually and find evidence for others when genes were tested in combination. The craniofacial phenotypes of 16p11.2 CNVs represent a model for studying the effects of genes on development, and our results suggest that the associated facial gestalts are attributable to the combined effects of multiple genes.
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Affiliation(s)
- Yuqi Qiu
- Division of Biostatistics and Bioinformatics, Department of Family Medicine and Public Health, University of California, San Diego, La Jolla, CA 92093, USA
| | - Thomas Arbogast
- Center for Human Disease Modeling, Duke University, Durham, NC 27701, USA
| | - Sandra Martin Lorenzo
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, Université de Strasbourg, Illkirch, France; Centre National de la Recherche Scientifique, UMR7104, Illkirch, France; Institut National de la Santé et de la Recherche Médicale, U964, Illkirch, France
| | - Hongying Li
- Division of Biostatistics and Bioinformatics, Department of Family Medicine and Public Health, University of California, San Diego, La Jolla, CA 92093, USA
| | - Shih C Tang
- Department of Psychiatry, University of California, San Diego, La Jolla, CA 92093, USA
| | - Ellen Richardson
- Center for Human Disease Modeling, Duke University, Durham, NC 27701, USA
| | - Oanh Hong
- Department of Psychiatry, University of California, San Diego, La Jolla, CA 92093, USA
| | - Shawn Cho
- Department of Psychiatry, University of California, San Diego, La Jolla, CA 92093, USA
| | - Omar Shanta
- Department of Psychiatry, University of California, San Diego, La Jolla, CA 92093, USA; Department of Electrical Engineering, University of California, San Diego, La Jolla, CA 92093, USA
| | - Timothy Pang
- Department of Psychiatry, University of California, San Diego, La Jolla, CA 92093, USA
| | - Christina Corsello
- Department of Psychiatry, University of California, San Diego, La Jolla, CA 92093, USA; Rady Children's Hospital, San Diego, CA 92123, USA
| | - Curtis K Deutsch
- Eunice Kennedy Shriver Center UMMS, Charlestown and Worcester, MA, USA
| | - Claire Chevalier
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, Université de Strasbourg, Illkirch, France; Centre National de la Recherche Scientifique, UMR7104, Illkirch, France; Institut National de la Santé et de la Recherche Médicale, U964, Illkirch, France
| | - Erica E Davis
- Center for Human Disease Modeling, Duke University, Durham, NC 27701, USA
| | - Lilia M Iakoucheva
- Department of Psychiatry, University of California, San Diego, La Jolla, CA 92093, USA
| | - Yann Herault
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, Université de Strasbourg, Illkirch, France; Centre National de la Recherche Scientifique, UMR7104, Illkirch, France; Institut National de la Santé et de la Recherche Médicale, U964, Illkirch, France
| | - Nicholas Katsanis
- Center for Human Disease Modeling, Duke University, Durham, NC 27701, USA
| | - Karen Messer
- Division of Biostatistics and Bioinformatics, Department of Family Medicine and Public Health, University of California, San Diego, La Jolla, CA 92093, USA
| | - Jonathan Sebat
- Department of Psychiatry, University of California, San Diego, La Jolla, CA 92093, USA; Beyster Center for Genomics of Psychiatric Diseases, University of California, San Diego, La Jolla, CA 92093, USA; Institute for Genomic Medicine, University of California, San Diego, La Jolla, CA 92093, USA; Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA 92093, USA; Department of Pediatrics, University of California, San Diego, La Jolla, CA 92093, USA.
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28
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Bai H, Wang C, Qi Y, Xu J, Li N, Chen L, Jiang B, Zhu X, Zhang H, Li X, Yang Q, Ma J, Xu Y, Ben J, Chen Q. Major vault protein suppresses lung cancer cell proliferation by inhibiting STAT3 signaling pathway. BMC Cancer 2019; 19:454. [PMID: 31092229 PMCID: PMC6521381 DOI: 10.1186/s12885-019-5665-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 04/30/2019] [Indexed: 01/07/2023] Open
Abstract
Background Major vault protein (MVP) is the major component of vault, a eukaryotic organelle involved in multiple cellular processes, and is important in multiple cellular processes and diseases including the drug resistance in cancer chemotherapies. However, the role of MVP in lung cancer remains unclear. Methods We examined MVP expression in 120 non-small cell lung cancer (NSCLC) tumors and matched normal tissues by immunohistochemistry. Its relationship with NSCLC prognosis was determined by investigating the patient cohort and analyzing the data from a published dataset consisting with more than 1900 lung cancer patients. We further performed shRNA-introduced knockdown of MVP in Lewis lung carcinoma (LLC) cells and examined its effects on the tumor formation in a xenograft mouse model and the tumor cell proliferation, apoptosis, and signal transduction in vitro. Results We found that MVP was up-regulated significantly in tumor tissues compared with the matched tumor-adjacent normal tissues. The increased expression of MVP in lung adenocarcinoma was associated with a better prognosis. Knockdown of MVP in LLC cells promoted xenografted lung cancer formation in mice, which was accompanied with accelerated tumor cell proliferation and suppressed cell apoptosis in vitro. Knockdown of MVP stimulated STAT3 phosphorylation, nuclear localization, and activation of JAK2 and RAF/MEK/ERK pathways in LLC cells. Administration of STAT3 inhibitor WP1066 could prevent MVP knockdown induced tumorigenesis. Conclusions Our findings demonstrate that MVP may act as a lung tumor suppressor via inhibiting STAT3 pathway. MVP would be a potential target for novel therapies of lung adenocarcinoma. Electronic supplementary material The online version of this article (10.1186/s12885-019-5665-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Hui Bai
- Department of Pathophysiology, Key Laboratory of Cardiovascular Disease and Molecular Intervention, Nanjing Medical University, Nanjing, China
| | - Chenchen Wang
- Department of Pathophysiology, Key Laboratory of Cardiovascular Disease and Molecular Intervention, Nanjing Medical University, Nanjing, China
| | - Yu Qi
- Department of Pathophysiology, Key Laboratory of Cardiovascular Disease and Molecular Intervention, Nanjing Medical University, Nanjing, China
| | - Jin Xu
- Department of Molecular Cell Biology and Toxicology, Key Laboratory of Modern Toxicology, Nanjing Medical University, Nanjing, China
| | - Nan Li
- Department of Pathophysiology, Key Laboratory of Cardiovascular Disease and Molecular Intervention, Nanjing Medical University, Nanjing, China.,Department of Pathology, The First Affiliated Hospital of Bengbu Medical College, Bengbu Medical College, Bengbu, China
| | - Lili Chen
- Department of Pathophysiology, Key Laboratory of Cardiovascular Disease and Molecular Intervention, Nanjing Medical University, Nanjing, China
| | - Bin Jiang
- Department of Pathophysiology, Key Laboratory of Cardiovascular Disease and Molecular Intervention, Nanjing Medical University, Nanjing, China
| | - Xudong Zhu
- Department of Pathophysiology, Key Laboratory of Cardiovascular Disease and Molecular Intervention, Nanjing Medical University, Nanjing, China
| | - Hanwen Zhang
- Department of Pathophysiology, Key Laboratory of Cardiovascular Disease and Molecular Intervention, Nanjing Medical University, Nanjing, China
| | - Xiaoyu Li
- Department of Pathophysiology, Key Laboratory of Cardiovascular Disease and Molecular Intervention, Nanjing Medical University, Nanjing, China
| | - Qing Yang
- Department of Pathophysiology, Key Laboratory of Cardiovascular Disease and Molecular Intervention, Nanjing Medical University, Nanjing, China
| | - Junqing Ma
- Department of Pathophysiology, Key Laboratory of Cardiovascular Disease and Molecular Intervention, Nanjing Medical University, Nanjing, China
| | - Yong Xu
- Department of Pathophysiology, Key Laboratory of Cardiovascular Disease and Molecular Intervention, Nanjing Medical University, Nanjing, China
| | - Jingjing Ben
- Department of Pathophysiology, Key Laboratory of Cardiovascular Disease and Molecular Intervention, Nanjing Medical University, Nanjing, China.
| | - Qi Chen
- Department of Pathophysiology, Key Laboratory of Cardiovascular Disease and Molecular Intervention, Nanjing Medical University, Nanjing, China.
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29
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Liu Z, Zhang W, Phillips JB, Arora R, McClellan S, Li J, Kim JH, Sobol RW, Tan M. Immunoregulatory protein B7-H3 regulates cancer stem cell enrichment and drug resistance through MVP-mediated MEK activation. Oncogene 2019; 38:88-102. [PMID: 30082909 PMCID: PMC6318029 DOI: 10.1038/s41388-018-0407-9] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 05/31/2018] [Accepted: 06/03/2018] [Indexed: 12/05/2022]
Abstract
B7-H3 is a tumor-promoting glycoprotein that is expressed at low levels in most normal tissues, but is overexpressed in various human cancers which is associated with disease progression and poor patient outcome. Although numerous publications have reported the correlation between B7-H3 and cancer progression in many types of cancers, mechanistic studies on how B7-H3 regulates cancer malignancy are rare, and the mechanisms underlying the role of B7-H3 in drug resistance are almost unknown. Here we report a novel finding that upregulation of B7-H3 increases the breast cancer stem cell population and promotes cancer development. Depletion of B7-H3 in breast cancer significantly inhibits the cancer stem cells. By immunoprecipitation and mass spectrometry, we found that B7-H3 is associated with the major vault protein (MVP) and activates MEK through MVP-enhancing B-RAF and MEK interaction. B7-H3 expression increases stem cell population by binding to MVP which regulates the activation of the MAPK kinase pathway. Depletion of MVP blocks the activation of MEK induced by B7-H3 and dramatically inhibits B7-H3 induced stem cells. This study reports novel functions of B7-H3 in regulating breast cancer stem cell enrichment. The novel mechanism for B7-H3-induced stem cell propagation by regulating MVP/MEK signaling axis independent of the classic Ras pathway may have important implications in the development of strategies for overcoming cancer cell resistance to chemotherapy.
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Affiliation(s)
- Zixing Liu
- Mitchell Cancer Institute, University of South Alabama, Mobile, AL, USA
| | - Wenling Zhang
- Department of Medical Laboratory Science, Xiangya School of Medicine, Central South University, Changsha, China
| | - Joshua B Phillips
- Mitchell Cancer Institute, University of South Alabama, Mobile, AL, USA
| | - Ritu Arora
- Mitchell Cancer Institute, University of South Alabama, Mobile, AL, USA
| | - Steven McClellan
- Mitchell Cancer Institute, University of South Alabama, Mobile, AL, USA
| | - Jiangfeng Li
- Mitchell Cancer Institute, University of South Alabama, Mobile, AL, USA
| | - Jin-Hwan Kim
- Mitchell Cancer Institute, University of South Alabama, Mobile, AL, USA
| | - Robert W Sobol
- Mitchell Cancer Institute, University of South Alabama, Mobile, AL, USA
| | - Ming Tan
- Mitchell Cancer Institute, University of South Alabama, Mobile, AL, USA.
- Department of Biochemistry and Molecular Biology, University of South Alabama, 307N. University Blvd, Mobile, AL, 36688, USA.
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30
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Dülk M, Szeder B, Glatz G, Merő BL, Koprivanacz K, Kudlik G, Vas V, Sipeki S, Cserkaszky A, Radnai L, Buday L. EGF Regulates the Interaction of Tks4 with Src through Its SH2 and SH3 Domains. Biochemistry 2018; 57:4186-4196. [PMID: 29928795 DOI: 10.1021/acs.biochem.8b00084] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The nonreceptor tyrosine kinase Src is a central component of the epidermal growth factor (EGF) signaling pathway. Our group recently showed that the Frank-ter Haar syndrome protein Tks4 (tyrosine kinase substrate with four Src homology 3 domains) is also involved in EGF signaling. Here we demonstrate that Tks4 and Src bind directly to each other and elucidate the details of the molecular mechanism of this complex formation. Results of GST pull-down and fluorescence polarization assays show that both a proline-rich SH3 binding motif (PSRPLPDAP, residues 466-474) and an adjacent phosphotyrosine-containing SH2 binding motif (pYEEI, residues 508-511) in Tks4 are responsible for Src binding. These motifs interact with the SH3 and SH2 domains of Src, respectively, leading to a synergistic enhancement of binding strength and a highly stable, "bidentate"-type of interaction. In agreement with these results, we found that the association of Src with Tks4 is permanent and the complex lasts at least 3 h in living cells. We conclude that the interaction of Tks4 with Src may result in the long term stabilization of the kinase in its active conformation, leading to prolonged Src activity following EGF stimulation.
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Affiliation(s)
- Metta Dülk
- Institute of Enzymology, Research Centre for Natural Sciences , Hungarian Academy of Sciences , 1117 Budapest , Hungary
| | - Bálint Szeder
- Institute of Enzymology, Research Centre for Natural Sciences , Hungarian Academy of Sciences , 1117 Budapest , Hungary
| | - Gábor Glatz
- Department of Anatomy, Cell and Developmental Biology , Eötvös Loránd University , 1117 Budapest , Hungary
| | - Balázs L Merő
- Institute of Enzymology, Research Centre for Natural Sciences , Hungarian Academy of Sciences , 1117 Budapest , Hungary
| | - Kitti Koprivanacz
- Institute of Enzymology, Research Centre for Natural Sciences , Hungarian Academy of Sciences , 1117 Budapest , Hungary
| | - Gyöngyi Kudlik
- Institute of Enzymology, Research Centre for Natural Sciences , Hungarian Academy of Sciences , 1117 Budapest , Hungary
| | - Virág Vas
- Institute of Enzymology, Research Centre for Natural Sciences , Hungarian Academy of Sciences , 1117 Budapest , Hungary
| | - Szabolcs Sipeki
- Department of Medical Chemistry , Semmelweis University Medical School , 1094 Budapest , Hungary
| | - Anna Cserkaszky
- Institute of Enzymology, Research Centre for Natural Sciences , Hungarian Academy of Sciences , 1117 Budapest , Hungary
| | - László Radnai
- Institute of Enzymology, Research Centre for Natural Sciences , Hungarian Academy of Sciences , 1117 Budapest , Hungary
| | - László Buday
- Institute of Enzymology, Research Centre for Natural Sciences , Hungarian Academy of Sciences , 1117 Budapest , Hungary.,Department of Medical Chemistry , Semmelweis University Medical School , 1094 Budapest , Hungary
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31
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Kumar VJ, Grissom NM, McKee SE, Schoch H, Bowman N, Havekes R, Kumar M, Pickup S, Poptani H, Reyes TM, Hawrylycz M, Abel T, Nickl-Jockschat T. Linking spatial gene expression patterns to sex-specific brain structural changes on a mouse model of 16p11.2 hemideletion. Transl Psychiatry 2018; 8:109. [PMID: 29844452 PMCID: PMC5974415 DOI: 10.1038/s41398-018-0157-z] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 04/02/2018] [Accepted: 04/10/2018] [Indexed: 02/02/2023] Open
Abstract
Neurodevelopmental disorders, such as ASD and ADHD, affect males about three to four times more often than females. 16p11.2 hemideletion is a copy number variation that is highly associated with neurodevelopmental disorders. Previous work from our lab has shown that a mouse model of 16p11.2 hemideletion (del/+) exhibits male-specific behavioral phenotypes. We, therefore, aimed to investigate with magnetic resonance imaging (MRI), whether del/+ animals also exhibited a sex-specific neuroanatomical endophenotype. Using the Allen Mouse Brain Atlas, we analyzed the expression patterns of the 27 genes within the 16p11.2 region to identify which gene expression patterns spatially overlapped with brain structural changes. MRI was performed ex vivo and the resulting images were analyzed using Voxel-based morphometry for T1-weighted sequences and tract-based spatial statistics for diffusion-weighted images. In a subsequent step, all available in situ hybridization (ISH) maps of the genes involved in the 16p11.2 hemideletion were aligned to Waxholm space and clusters obtained by sex-specific group comparisons were analyzed to determine which gene(s) showed the highest expression in these regions. We found pronounced sex-specific changes in male animals with increased fractional anisotropy in medial fiber tracts, especially in those proximate to the striatum. Moreover, we were able to identify gene expression patterns spatially overlapping with male-specific structural changes that were associated with neurite outgrowth and the MAPK pathway. Of note, previous molecular studies have found convergent changes that point to a sex-specific dysregulation of MAPK signaling. This convergent evidence supports the idea that ISH maps can be used to meaningfully analyze imaging data sets.
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Affiliation(s)
- Vinod Jangir Kumar
- Department of Psychiatry, Psychotherapy and Psychosomatics, RWTH Aachen University, Aachen, Germany
- Juelich-Aachen Research Alliance Brain, Juelich/Aachen, Germany
- Max Planck Institute for Biological Cybernetics, Tubingen, Germany
| | - Nicola M Grissom
- Department of Pharmacology, University of Pennsylvania, Philadelphia, PA, USA
- Institute for Translational Medicine and Therapeutics, University of Pennsylvania, Philadelphia, PA, USA
- Department of Psychology, University of Minnesota, Minneapolis, MN, USA
| | - Sarah E McKee
- Department of Pharmacology, University of Pennsylvania, Philadelphia, PA, USA
- Institute for Translational Medicine and Therapeutics, University of Pennsylvania, Philadelphia, PA, USA
| | - Hannah Schoch
- Institute for Translational Medicine and Therapeutics, University of Pennsylvania, Philadelphia, PA, USA
- Department of Biology, University of Pennsylvania, Philadelphia, PA, USA
| | - Nicole Bowman
- Institute for Translational Medicine and Therapeutics, University of Pennsylvania, Philadelphia, PA, USA
- Department of Neuroscience, University of Pennsylvania, Philadelphia, PA, USA
| | - Robbert Havekes
- Groningen Institute for Evolutionary Life Sciences, University of Groningen, Groningen, Netherlands
| | - Manoj Kumar
- Department of Radiology, University of Pennsylvania, Philadelphia, PA, USA
| | - Stephen Pickup
- Department of Radiology, University of Pennsylvania, Philadelphia, PA, USA
| | - Harish Poptani
- Department of Radiology, University of Pennsylvania, Philadelphia, PA, USA
- Centre for Preclinical Imaging, University of Liverpool, Liverpool, UK
| | - Teresa M Reyes
- Department of Pharmacology, University of Pennsylvania, Philadelphia, PA, USA
- Institute for Translational Medicine and Therapeutics, University of Pennsylvania, Philadelphia, PA, USA
- Department of Psychiatry and Behavioral Neurosciences, University of Cincinnati, Cincinnati, OH, USA
| | | | - Ted Abel
- Iowa Neuroscience Institute, Carver College of Medicine, University of Iowa, Iowa, IA, USA
| | - Thomas Nickl-Jockschat
- Department of Psychiatry, Psychotherapy and Psychosomatics, RWTH Aachen University, Aachen, Germany.
- Juelich-Aachen Research Alliance Brain, Juelich/Aachen, Germany.
- Iowa Neuroscience Institute, Carver College of Medicine, University of Iowa, Iowa, IA, USA.
- Department of Psychiatry, Carver College of Medicine, University of Iowa, Iowa, IA, USA.
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Major Vault Protein, a Candidate Gene in 16p11.2 Microdeletion Syndrome, Is Required for the Homeostatic Regulation of Visual Cortical Plasticity. J Neurosci 2018. [PMID: 29540554 DOI: 10.1523/jneurosci.2034-17.2018] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Microdeletion of a region in chromosome 16p11.2 increases susceptibility to autism. Although this region contains exons of 29 genes, disrupting only a small segment of the region, which spans five genes, is sufficient to cause autistic traits. One candidate gene in this critical segment is MVP, which encodes for the major vault protein (MVP) that has been implicated in regulation of cellular transport mechanisms. MVP expression levels in MVP+/- mice closely phenocopy those of 16p11.2 mutant mice, suggesting that MVP+/- mice may serve as a model of MVP function in 16p11.2 microdeletion. Here we show that MVP regulates the homeostatic component of ocular dominance (OD) plasticity in primary visual cortex. MVP+/- mice of both sexes show impairment in strengthening of open-eye responses after several days of monocular deprivation (MD), whereas closed-eye responses are weakened as normal, resulting in reduced overall OD plasticity. The frequency of miniature EPSCs (mEPSCs) in pyramidal neurons is decreased in MVP+/- mice after extended MD, suggesting a reduction of functional synapses. Correspondingly, upregulation of surface GluA1 AMPA receptors is reduced in MVP+/- mice after extended MD, and is accompanied by altered expression of STAT1 and phosphorylated ERK, which have been previously implicated in OD plasticity. Normalization of STAT1 levels by introducing STAT1 shRNA rescues surface GluA1 and open-eye responses, implicating STAT1 as a downstream effector of MVP. These findings demonstrate a specific role for MVP as a key molecule influencing the homeostatic component of activity-dependent synaptic plasticity, and potentially the corresponding phenotypes of 16p11.2 microdeletion syndrome.SIGNIFICANCE STATEMENT Major vault protein (MVP), a candidate gene in 16p11.2 microdeletion syndrome, has been implicated in the regulation of several cellular processes including transport mechanisms and scaffold signaling. However, its role in brain function and plasticity remains unknown. In this study, we identified MVP as an important regulator of the homeostatic component of experience-dependent plasticity, via regulation of STAT1 and ERK signaling. This study helps reveal a new mechanism for an autism-related gene in brain function, and suggests a broader role for neuro-immune interactions in circuit level plasticity. Importantly, our findings might explain specific components of the pathophysiology of 16p11.2 microdeletion syndrome.
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Schwartz DD, Katzenstein JM, Highley EJ, Stabley DL, Sol-Church K, Gripp KW, Axelrad ME. Age-related differences in prevalence of autism spectrum disorder symptoms in children and adolescents with Costello syndrome. Am J Med Genet A 2017; 173:1294-1300. [PMID: 28374929 DOI: 10.1002/ajmg.a.38174] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Revised: 01/12/2017] [Accepted: 01/18/2017] [Indexed: 11/11/2022]
Abstract
Dysregulation of the mitogen activated protein kinase (MAPK) pathway in Costello syndrome (CS) may contribute to increased risk for autism-spectrum disorder (ASD). We examined prevalence of ASD symptoms in 14 individuals (six females) age 1-18 years with molecularly confirmed CS. Caregivers completed the Modified Checklist for Autism in Toddlers (M-CHAT) for ages 0-4 years (n = 7), and the Social Communication Questionnaire (SCQ) for ages 4 and older (n = 7). Age was associated with meeting ASD criteria: 5/7 (71.4%) younger children met the ASD cut-off on the MCHAT, compared to 0/7 older children on the SCQ. The following medical and developmental factors were strongly associated with ASD criteria on the M-CHAT: having a gastrostomy tube at time of assessment, not eating solid food, not walking, and not being toilet trained. Two children who met stricter ASD criteria had significantly lower adaptive functioning and were physically much more impaired. Among older participants, SCQ subscale scores in communication, socialization, and repetitive behavior domains were comparable to the typically-developing normative sample. ASD symptoms were highly elevated in younger CS individuals. Older children did not differ from typically developing samples in prevalence of ASD symptoms. CS individuals may appear to fall on the autism spectrum in early childhood due to severe feeding and orthopedic problems that improve by age four, suggesting many of these children may eventually emerge out of an ASD presentation.
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Affiliation(s)
- David D Schwartz
- Section of Psychology, Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston, Texas
| | - Jennifer M Katzenstein
- Department of Psychology, Johns Hopkins Medicine, All Children's Hospital, St. Petersburg, Florida
| | | | - Deborah L Stabley
- Biomedical Research, A. I. DuPont Hospital for Children, Wilmington, Delaware
| | - Katia Sol-Church
- Biomedical Research, A. I. DuPont Hospital for Children, Wilmington, Delaware
| | - Karen W Gripp
- Medical Genetics, A. I. DuPont Hospital for Children, Wilmington, Delaware
| | - Marni E Axelrad
- Section of Psychology, Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston, Texas
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Vuorinen EM, Rajala NK, Rauhala HE, Nurminen AT, Hytönen VP, Kallioniemi A. Search for KPNA7 cargo proteins in human cells reveals MVP and ZNF414 as novel regulators of cancer cell growth. Biochim Biophys Acta Mol Basis Dis 2016; 1863:211-219. [PMID: 27664836 DOI: 10.1016/j.bbadis.2016.09.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 08/26/2016] [Accepted: 09/20/2016] [Indexed: 12/20/2022]
Abstract
Karyopherin alpha 7 (KPNA7) belongs to a family of nuclear import proteins that recognize and bind nuclear localization signals (NLSs) in proteins to be transported to the nucleus. Previously we found that KPNA7 is overexpressed in a subset of pancreatic cancer cell lines and acts as a critical regulator of growth in these cells. This characteristic of KPNA7 is likely to be mediated by its cargo proteins that are still mainly unknown. Here, we used protein affinity chromatography in Hs700T and MIA PaCa-2 pancreatic cancer cell lines and identified 377 putative KPNA7 cargo proteins, most of which were known or predicted to localize to the nucleus. The interaction was confirmed for two of the candidates, MVP and ZNF414, using co-immunoprecipitation, and their transport to the nucleus was hindered by siRNA based KPNA7 silencing. Most importantly, silencing of MVP and ZNF414 resulted in marked reduction in Hs700T cell growth. In conclusion, these data uncover two previously unknown human KPNA7 cargo proteins with distinct roles as novel regulators of pancreatic cancer cell growth, thus deepening our understanding on the contribution of nuclear transport in cancer pathogenesis.
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Affiliation(s)
- Elisa M Vuorinen
- University of Tampere, BioMediTech, PL 100, 33014 TAMPEREEN YLIOPISTO, Tampere, Finland; Fimlab laboratories, Biokatu 4, 33520 Tampere, Finland.
| | - Nina K Rajala
- University of Tampere, BioMediTech, PL 100, 33014 TAMPEREEN YLIOPISTO, Tampere, Finland; Fimlab laboratories, Biokatu 4, 33520 Tampere, Finland.
| | - Hanna E Rauhala
- University of Tampere, BioMediTech, PL 100, 33014 TAMPEREEN YLIOPISTO, Tampere, Finland.
| | - Anssi T Nurminen
- University of Tampere, BioMediTech, PL 100, 33014 TAMPEREEN YLIOPISTO, Tampere, Finland; Fimlab laboratories, Biokatu 4, 33520 Tampere, Finland.
| | - Vesa P Hytönen
- University of Tampere, BioMediTech, PL 100, 33014 TAMPEREEN YLIOPISTO, Tampere, Finland; Fimlab laboratories, Biokatu 4, 33520 Tampere, Finland.
| | - Anne Kallioniemi
- University of Tampere, BioMediTech, PL 100, 33014 TAMPEREEN YLIOPISTO, Tampere, Finland; Fimlab laboratories, Biokatu 4, 33520 Tampere, Finland.
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Kangas SM, Ohlmeier S, Sormunen R, Jouhilahti EM, Peltonen S, Peltonen J, Heape AM. An approach to comprehensive genome and proteome expression analyses in Schwann cells and neurons during peripheral nerve myelin formation. J Neurochem 2016; 138:830-44. [PMID: 27364987 DOI: 10.1111/jnc.13722] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 06/09/2016] [Accepted: 06/27/2016] [Indexed: 12/01/2022]
Abstract
Peripheral nerve myelination is a complex event resulting from spatially and temporally regulated reciprocal interactions between the neuron and myelin-forming Schwann cells. The dynamic process and the protein functional modules and networks that operate throughout the myelination process are poorly understood because of a lack of methodologies suitable for observing specific changes in the Schwann cell/neuron-unit. The identification of the precise roles for the proteins participating in the functional modules and networks that participate in the myelination process is hindered by the cellular and molecular complexity of the nervous tissue itself. We have developed an approach based on a myelinating dorsal root ganglion explant model that allows distinguishing clear, reproducible and predictable differences between the biochemical properties and the genomic and proteomic expression profiles of both cellular components of the Schwann cell/neuron unit at different stages of the myelination process. This model, derived from E13.5 C57BL/6J mouse embryos, is sufficiently robust for use in identifying the protein functional networks and modules related to peripheral nerve myelin formation. The genomic expression profiles of the selected neuronal, Schwann cell and myelin-specific proteins in the cultures reflect in vivo profiles reported in the literature, and the structural and ultrastructural properties of the myelin, as well as the myelination schedule of the cultures, closely resemble those observed in peripheral nerves in situ. The RNA expression data set is available through NCBI gene expression omnibus accession GSE60345. We have developed a reproducible and robust cell culture-based approach, accompanied by a genome-wide expression data set, which allows studying myelination in the peripheral nervous system at the proteomic and transcriptomic levels in Schwann cells and neurons. Myelinating dorsal root explant cultures, prepared from C57BL/6J mouse embryos, present distinct developmental stages comparable to those observed in a peripheral nerve in situ. This model can be used for identifying the protein functional networks and modules related to peripheral nerve myelin formation.
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Affiliation(s)
- Salla M Kangas
- Cancer and Translational Medicine Research Unit (Anatomy and Cell Biology), University of Oulu, Oulu, Finland.
| | - Steffen Ohlmeier
- Proteomics Core Facility, Biocenter Oulu and Faculty of Biochemistry and Molecular Medicine, University of Oulu, Oulu, Finland
| | - Raija Sormunen
- Biocenter Oulu and Departments of Pathology, University of Oulu, Oulu, Finland
| | - Eeva-Mari Jouhilahti
- Department of Cell Biology and Anatomy, Institute of Biomedicine, University of Turku, Turku, Finland
| | - Sirkku Peltonen
- Department of Dermatology, University of Turku and Turku University Hospital, Turku, Finland
| | - Juha Peltonen
- Department of Cell Biology and Anatomy, Institute of Biomedicine, University of Turku, Turku, Finland
| | - Anthony M Heape
- Cancer and Translational Medicine Research Unit (Anatomy and Cell Biology), University of Oulu, Oulu, Finland.
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36
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Amort M, Nachbauer B, Tuzlak S, Kieser A, Schepers A, Villunger A, Polacek N. Expression of the vault RNA protects cells from undergoing apoptosis. Nat Commun 2015; 6:7030. [PMID: 25952297 PMCID: PMC4430821 DOI: 10.1038/ncomms8030] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2015] [Accepted: 03/26/2015] [Indexed: 02/07/2023] Open
Abstract
Non-protein-coding RNAs are a functionally versatile class of transcripts exerting their biological roles on the RNA level. Recently, we demonstrated that the vault complex-associated RNAs (vtRNAs) are significantly upregulated in Epstein-Barr virus (EBV)-infected human B cells. Very little is known about the function(s) of the vtRNAs or the vault complex. Here, we individually express latent EBV-encoded proteins in B cells and identify the latent membrane protein 1 (LMP1) as trigger for vtRNA upregulation. Ectopic expression of vtRNA1-1, but not of the other vtRNA paralogues, results in an improved viral establishment and reduced apoptosis, a function located in the central domain of vtRNA1-1. Knockdown of the major vault protein has no effect on these phenotypes revealing that vtRNA1-1 and not the vault complex contributes to general cell death resistance. This study describes a NF-κB-mediated role of the non-coding vtRNA1-1 in inhibiting both the extrinsic and intrinsic apoptotic pathways.
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Affiliation(s)
- Melanie Amort
- Division of Genomics and RNomics, Medical University Innsbruck, Innsbruck A-6020, Austria
| | - Birgit Nachbauer
- Division of Genomics and RNomics, Medical University Innsbruck, Innsbruck A-6020, Austria
- Department of Chemistry and Biochemistry, University of Bern, Bern CH-3012, Switzerland
- Graduate School for Cellular and Biomedical Sciences, University of Bern Bern 3012, Switzerland
| | - Selma Tuzlak
- Division of Developmental Immunology, Medical University Innsbruck, Innsbruck A-6020, Austria
| | - Arnd Kieser
- Research Unit Gene Vectors, Helmholtz Zentrum München, München D-81377, Germany
- German Center for Infection Research (DZIF), Partner site Munich, München D-81377, Germany
| | - Aloys Schepers
- Research Unit Gene Vectors, Helmholtz Zentrum München, München D-81377, Germany
- German Center for Infection Research (DZIF), Partner site Munich, München D-81377, Germany
| | - Andreas Villunger
- Division of Developmental Immunology, Medical University Innsbruck, Innsbruck A-6020, Austria
| | - Norbert Polacek
- Division of Genomics and RNomics, Medical University Innsbruck, Innsbruck A-6020, Austria
- Department of Chemistry and Biochemistry, University of Bern, Bern CH-3012, Switzerland
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37
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Zhu Y, Jiang J, Said-Sadier N, Boxx G, Champion C, Tetlow A, Kickhoefer VA, Rome LH, Ojcius DM, Kelly KA. Activation of the NLRP3 inflammasome by vault nanoparticles expressing a chlamydial epitope. Vaccine 2014; 33:298-306. [PMID: 25448112 DOI: 10.1016/j.vaccine.2014.11.028] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Revised: 11/04/2014] [Accepted: 11/15/2014] [Indexed: 11/28/2022]
Abstract
The full potential of vaccines relies on development of effective delivery systems and adjuvants and is critical for development of successful vaccine candidates. We have shown that recombinant vaults engineered to encapsulate microbial epitopes are highly stable structures and are an ideal vaccine vehicle for epitope delivery which does not require the inclusion of an adjuvant. We studied the ability of vaults which were engineered for use as a vaccine containing an immunogenic epitope of Chlamydia trachomatis, polymorphic membrane protein G (PmpG), to be internalized into human monocytes and behave as a "natural adjuvant". We here show that incubation of monocytes with the PmpG-1-vaults activates caspase-1 and stimulates IL-1β secretion through a process requiring the NLRP3 inflammasome and that cathepsin B and Syk are involved in the inflammasome activation. We also observed that the PmpG-1-vaults are internalized through a pathway that is transiently acidic and leads to destabilization of lysosomes. In addition, immunization of mice with PmpG-1-vaults induced PmpG-1 responsive CD4(+) cells upon re-stimulation with PmpG peptide in vitro, suggesting that vault vaccines can be engineered for specific adaptive immune responses. We conclude that PmpG-1-vault vaccines can stimulate NLRP3 inflammasomes and induce PmpG-specific T cell responses.
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Affiliation(s)
- Ye Zhu
- Department of Molecular Cell Biology, and Health Sciences Research Institute, University of California, Merced, CA 95343, USA
| | - Janina Jiang
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, CA 90095, USA
| | - Najwane Said-Sadier
- Department of Molecular Cell Biology, and Health Sciences Research Institute, University of California, Merced, CA 95343, USA
| | - Gale Boxx
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, CA 90095, USA
| | - Cheryl Champion
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, CA 90095, USA
| | - Ashley Tetlow
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, CA 90095, USA
| | - Valerie A Kickhoefer
- Department of Biological Chemistry, University of California, Los Angeles, CA 90095, USA
| | - Leonard H Rome
- Department of Biological Chemistry, University of California, Los Angeles, CA 90095, USA
| | - David M Ojcius
- Department of Molecular Cell Biology, and Health Sciences Research Institute, University of California, Merced, CA 95343, USA.
| | - Kathleen A Kelly
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, CA 90095, USA.
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Cheng SQ, Xia YY, He JL, Liu XQ, Chen XM, Ding YB, Wang YX, Peng B, Tu BJ. Neurotoxic effect of subacute benzo(a)pyrene exposure on gene and protein expression in Sprague-Dawley rats. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2013; 36:648-658. [PMID: 23892282 DOI: 10.1016/j.etap.2013.06.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Revised: 06/13/2013] [Accepted: 06/20/2013] [Indexed: 06/02/2023]
Abstract
Benzo(a)pyrene (B[a]P) is an environmental carcinogen that induces tumors in many animal species, but the neurotoxic effects of B[a]P have not been well studied. In the present study, we investigated the effects of subacute exposure to B[a]P in Sprague-Dawley (SD) rats. Male rats received daily injections of either B[a]P (0, 1, 2.5, or 6.25mg/kg, i.p.) or vehicle for 45 days. Exposure to B[a]P affected the behavior of rats in the Morris water maze test. Gene microarray and real-time PCR analyses revealed that exposure to B[a]P affected signal transduction in the rat hippocampus. Protein microarray analysis revealed that altered protein expression played a role in cell death in the functional annotation cluster analysis. Finally, major vault protein was found to display low cDNA and protein expression levels. The present study explored some of the possible mechanisms underlying B[a]P neurotoxicity and provided evidence that B[a]P plays a neurotoxic role in rats.
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Affiliation(s)
- Shu-Qun Cheng
- Department of Occupational and Environmental Hygiene, Chongqing Medical University, People's Republic of China
| | - Yin-Yin Xia
- Department of Occupational and Environmental Hygiene, Chongqing Medical University, People's Republic of China.
| | - Jun-Lin He
- Department of Reproductive Biology, Chongqing Medical University, People's Republic of China
| | - Xue-Qing Liu
- Department of Reproductive Biology, Chongqing Medical University, People's Republic of China
| | - Xue-Mei Chen
- Department of Reproductive Biology, Chongqing Medical University, People's Republic of China
| | - Yu-Bin Ding
- Department of Reproductive Biology, Chongqing Medical University, People's Republic of China
| | - Ying-Xiong Wang
- Department of Reproductive Biology, Chongqing Medical University, People's Republic of China
| | - Bing Peng
- Department of Epidemiology and Health Statistics, Chongqing Medical University, People's Republic of China
| | - Bai-Jie Tu
- Department of Occupational and Environmental Hygiene, Chongqing Medical University, People's Republic of China.
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Ben J, Zhang Y, Zhou R, Zhang H, Zhu X, Li X, Zhang H, Li N, Zhou X, Bai H, Yang Q, Li D, Xu Y, Chen Q. Major vault protein regulates class A scavenger receptor-mediated tumor necrosis factor-α synthesis and apoptosis in macrophages. J Biol Chem 2013; 288:20076-84. [PMID: 23703615 DOI: 10.1074/jbc.m112.449538] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Atherosclerosis is considered a disease of chronic inflammation largely initiated and perpetuated by macrophage-dependent synthesis and release of pro-inflammatory mediators. Class A scavenger receptor (SR-A) expressed on macrophages plays a key role in this process. However, how SR-A-mediated pro-inflammatory response is modulated in macrophages remains ill defined. Here through immunoprecipitation coupled with mass spectrometry, we reported major vault protein (MVP) as a novel binding partner for SR-A. The interaction between SR-A and MVP was confirmed by immunofluorescence staining and chemical cross-linking assay. Treatment of macrophages with fucoidan, a SR-A ligand, led to a marked increase in TNF-α production, which was attenuated by MVP depletion. Further analysis revealed that SR-A stimulated TNF-α synthesis in macrophages via the caveolin- instead of clathrin-mediated endocytic pathway linked to p38 and JNK, but not ERK, signaling pathways. Importantly, fucoidan invoked an enrichment of MVP in lipid raft, a caveolin-reliant membrane structure, and enhanced the interaction among SR-A, caveolin, and MVP. Finally, we demonstrated that MVP elimination ameliorated SR-A-mediated apoptosis in macrophages. As such, MVP may fine-tune SR-A activity in macrophages which contributes to the development of atherosclerosis.
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Affiliation(s)
- Jingjing Ben
- Atherosclerosis Research Center, Key Laboratory of Cardiovascular Disease and Molecular Intervention, Nanjing Medical University, Nanjing 210029, China
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Han M, Lv Q, Tang XJ, Hu YL, Xu DH, Li FZ, Liang WQ, Gao JQ. Overcoming drug resistance of MCF-7/ADR cells by altering intracellular distribution of doxorubicin via MVP knockdown with a novel siRNA polyamidoamine-hyaluronic acid complex. J Control Release 2012; 163:136-44. [PMID: 22940126 DOI: 10.1016/j.jconrel.2012.08.020] [Citation(s) in RCA: 125] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2012] [Revised: 07/27/2012] [Accepted: 08/15/2012] [Indexed: 01/08/2023]
Abstract
Drug resistance is one of the critical reasons leading to failure in chemotherapy. Enormous studies have been focused on increasing intracellular drug accumulation through inhibiting P-glycoprotein (Pgp). Meanwhile, we found that major vault protein (MVP) may be also involved in drug resistance of human breast cancer MCF-7/ADR cells by transporting doxorubicin (DOX) from the action target (i.e. nucleus) to cytoplasma. Herein polyamidoamine (PAMAM) dendrimers was functionalized by a polysaccharide hyaluronic acid (HA) to effectively deliver DOX as well as MVP targeted small-interfering RNA (MVP-siRNA) to down regulate MVP expression and improve DOX chemotherapy in MCF-7/ADR cells. In comparison with DOX solution (IC50=48.5 μM), an enhanced cytotoxicity could be observed for DOX PAMAM-HA (IC50=11.3 μM) as well as enhanced tumor target, higher intracellular accumulation, increased blood circulating time and less in vivo toxicity. Furthermore, codelivery of siRNA and DOX by PAMAM-HA exhibited satisfactory gene silencing effect as well as enhanced stability and efficient intracellular delivery of siRNA, which allowed DOX access to nucleus and induced subsequent much more cytotoxicity than siRNA absent case as a result of MVP knockdown. This observation highlights a promising application of novel nanocarrier PAMAM-HA, which could co-deliver anticancer drug and siRNA, in reversing drug resistance by altering intracellular drug distribution.
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Affiliation(s)
- Min Han
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, PR China
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41
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Liu S, Hao Q, Peng N, Yue X, Wang Y, Chen Y, Wu J, Zhu Y. Major vault protein: a virus-induced host factor against viral replication through the induction of type-I interferon. Hepatology 2012; 56:57-66. [PMID: 22318991 DOI: 10.1002/hep.25642] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2011] [Accepted: 01/25/2012] [Indexed: 12/21/2022]
Abstract
UNLABELLED Major vault protein (MVP) is the major constituent of vaults and is involved in multidrug resistance, nucleocytoplasmic transport, and cell signaling. However, little is known about the role of MVP during viral infections. In this study, high levels of MVP were found in peripheral blood mononuclear cells, sera, and liver tissue from patients infected with hepatitis C virus (HCV) relative to healthy individuals. HCV infections resulted in elevated levels of MVP messenger RNA (mRNA) and protein expression in the hepatocyte cell lines Huh7.5.1 and Huh7. Further studies demonstrated that the nuclear factor kappa B (NF-κB) and Sp1 pathways are involved in the induction of MVP expression by HCV. Interestingly, MVP expression suppressed HCV replication and protein synthesis by way of induction of type-I interferon mRNA expression and protein secretion. Upon investigating the mechanisms behind this event, we found that MVP enhanced the expression of interferon regulatory factor 7 (IRF7), but not IRF3. Translocation of activated IRF7 and NF-κB from the cytosol to the nucleus was involved in this process. Furthermore, vesicular stomatitis virus, influenza A virus, and enterovirus 71 also induced MVP production, and MVP in turn hampered viral replication and production. CONCLUSION MVP is a novel virus-induced host factor and its expression up-regulates type-I interferon production, leading to cellular antiviral responses.
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Affiliation(s)
- Shi Liu
- State Key Laboratory of Virology and College of Life Sciences, Wuhan University, Wuhan, China
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Lara PC, Pruschy M, Zimmermann M, Henríquez-Hernández LA. MVP and vaults: a role in the radiation response. Radiat Oncol 2011; 6:148. [PMID: 22040803 PMCID: PMC3216873 DOI: 10.1186/1748-717x-6-148] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2011] [Accepted: 10/31/2011] [Indexed: 01/05/2023] Open
Abstract
Vaults are evolutionary highly conserved ribonucleoproteins particles with a hollow barrel-like structure. The main component of vaults represents the 110 kDa major vault protein (MVP), whereas two minor vaults proteins comprise the 193 kDa vault poly(ADP-ribose) polymerase (vPARP) and the 240 kDa telomerase-associated protein-1 (TEP-1). Additionally, at least one small and untranslated RNA is found as a constitutive component. MVP seems to play an important role in the development of multidrug resistance. This particle has also been implicated in the regulation of several cellular processes including transport mechanisms, signal transmission and immune responses. Vaults are considered a prognostic marker for different cancer types. The level of MVP expression predicts the clinical outcome after chemotherapy in different tumour types. Recently, new roles have been assigned to MVP and vaults including the association with the insulin-like growth factor-1, hypoxia-inducible factor-1alpha, and the two major DNA double-strand break repair machineries: non-homologous endjoining and homologous recombination. Furthermore, MVP has been proposed as a useful prognostic factor associated with radiotherapy resistance. Here, we review these novel actions of vaults and discuss a putative role of MVP and vaults in the response to radiotherapy.
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Affiliation(s)
- Pedro C Lara
- Radiation Oncology Department, Hospital Universitario de Gran Canaria Dr Negrín, C/Barranco de La Ballena s/n, 35010, Las Palmas de Gran Canaria, Spain
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Dortet L, Mostowy S, Louaka AS, Gouin E, Nahori MA, Wiemer EA, Dussurget O, Cossart P. Recruitment of the major vault protein by InlK: a Listeria monocytogenes strategy to avoid autophagy. PLoS Pathog 2011; 7:e1002168. [PMID: 21829365 PMCID: PMC3150275 DOI: 10.1371/journal.ppat.1002168] [Citation(s) in RCA: 133] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2011] [Accepted: 05/31/2011] [Indexed: 12/12/2022] Open
Abstract
L. monocytogenes is a facultative intracellular bacterium responsible for listeriosis. It is able to invade, survive and replicate in phagocytic and non-phagocytic cells. The infectious process at the cellular level has been extensively studied and many virulence factors have been identified. Yet, the role of InlK, a member of the internalin family specific to L. monocytogenes, remains unknown. Here, we first show using deletion analysis and in vivo infection, that InlK is a bona fide virulence factor, poorly expressed in vitro and well expressed in vivo, and that it is anchored to the bacterial surface by sortase A. We then demonstrate by a yeast two hybrid screen using InlK as a bait, validated by pulldown experiments and immunofluorescence analysis that intracytosolic bacteria via an interaction with the protein InlK interact with the Major Vault Protein (MVP), the main component of cytoplasmic ribonucleoproteic particules named vaults. Although vaults have been implicated in several cellular processes, their role has remained elusive. Our analysis demonstrates that MVP recruitment disguises intracytosolic bacteria from autophagic recognition, leading to an increased survival rate of InlK over-expressing bacteria compared to InlK(-) bacteria. Together these results reveal that MVP is hijacked by L. monocytogenes in order to counteract the autophagy process, a finding that could have major implications in deciphering the cellular role of vault particles.
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Affiliation(s)
- Laurent Dortet
- Institut Pasteur, Unité des interactions Bactéries-Cellules, Paris, France
- INSERM, U604, Paris, France
- INRA, USC 2020, Paris, France
- Service de Bactériologie-Virologie, Hôpital de Bicêtre, Assistance Publique/Hôpitaux de Paris, Faculté de Médecine et Université Paris-Sud, Le Kremlin- Bicêtre Cedex, France
| | - Serge Mostowy
- Institut Pasteur, Unité des interactions Bactéries-Cellules, Paris, France
- INSERM, U604, Paris, France
- INRA, USC 2020, Paris, France
| | - Ascel Samba Louaka
- Institut Pasteur, Unité des interactions Bactéries-Cellules, Paris, France
- INSERM, U604, Paris, France
- INRA, USC 2020, Paris, France
| | - Edith Gouin
- Institut Pasteur, Unité des interactions Bactéries-Cellules, Paris, France
- INSERM, U604, Paris, France
- INRA, USC 2020, Paris, France
| | - Marie-Anne Nahori
- Institut Pasteur, Unité des interactions Bactéries-Cellules, Paris, France
- INSERM, U604, Paris, France
- INRA, USC 2020, Paris, France
| | - Erik A.C. Wiemer
- Department of Medical Oncology, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Olivier Dussurget
- Institut Pasteur, Unité des interactions Bactéries-Cellules, Paris, France
- INSERM, U604, Paris, France
- INRA, USC 2020, Paris, France
- Université Paris Diderot-Paris 7, Paris, France
| | - Pascale Cossart
- Institut Pasteur, Unité des interactions Bactéries-Cellules, Paris, France
- INSERM, U604, Paris, France
- INRA, USC 2020, Paris, France
- * E-mail:
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Henríquez-Hernández LA, Lloret M, Pinar B, Bordón E, Rey A, Lubrano A, Lara PC. BCL-2, in combination with MVP and IGF-1R expression, improves prediction of clinical outcome in complete response cervical carcinoma patients treated by radiochemotherapy. Gynecol Oncol 2011; 122:585-9. [PMID: 21708403 DOI: 10.1016/j.ygyno.2011.05.037] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2011] [Revised: 05/26/2011] [Accepted: 05/31/2011] [Indexed: 01/12/2023]
Abstract
OBJECTIVES To investigate whether BCL-2 expression would improve MVP/IGF-1R prediction of clinical outcome in cervix carcinoma patients treated by radiochemotherapy, and suggest possible mechanisms behind this effect. METHODS Fifty consecutive patients, who achieved complete response to treatment, from a whole series of 60 cases suffering from non-metastatic localized cervical carcinoma, were prospectively included in this study from July 1999 to December 2003. Follow-up was closed in January 2011. All patients received pelvic radiation (45-64.80 Gy in 1.8-2 Gy fractions) with concomitant cisplatin at 40 mg/m2/week doses followed by brachytherapy. Oncoprotein expression was studied by immunohistochemistry in paraffin-embedded tumour tissue. RESULTS No relation was found between BCL-2 and clinicopathological variables. High MVP/IGF-1R/BCL-2 tumour expression was strongly related to poor local and regional disease-free survival (P<0.0001), distant disease-free survival (P=0.010), disease-free survival (P<0.0001), and cause-specific survival (P<0.0001). NHEJ repair protein Ku70/80 expression was significantly repressed in tumours overexpressing all three oncoproteins (P=0.047). No differences were observed in proliferation (Ki67 expression) or P53 alteration. CONCLUSIONS BCL-2, MVP, and IGF-1R overexpression were related to poorer clinical outcome in cervical cancer patients who achieved clinical complete response to radiochemotherapy. The NHEJ repair protein Ku70/80 expression could be involved in the regulation of these oncoproteins.
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Galvagni F, Pennacchini S, Salameh A, Rocchigiani M, Neri F, Orlandini M, Petraglia F, Gotta S, Sardone GL, Matteucci G, Terstappen GC, Oliviero S. Endothelial Cell Adhesion to the Extracellular Matrix Induces c-Src–Dependent VEGFR-3 Phosphorylation Without the Activation of the Receptor Intrinsic Kinase Activity. Circ Res 2010; 106:1839-48. [DOI: 10.1161/circresaha.109.206326] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Rationale
:
Integrins cooperate with growth factor receptors to promote downstream signaling for cell proliferation and migration. However, the mechanism of receptor activation is still unknown.
Objective
:
To analyze the mechanism of phosphorylation of the vascular endothelial growth factor receptor (VEGFR)-3 by cell adhesion.
Methods and Results
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We show that VEGFR-3 phosphorylation, induced by cell attachment to the extracellular matrix, is independent from the intrinsic kinase activity of the receptor, as evidenced from phosphorylation cell adhesion experiments with a mutant kinase dead receptor or in the presence of the specific kinase inhibitor MAZ 51. Cell adhesion experiments in the presence of the c-Src inhibitor PP2 or in fibroblast triple knockout for c-Src, Yes, and Fyn (SYF) demonstrate that VEGFR-3 phosphorylation, induced by extracellular matrix, is mediated by c-Src. Kinase assays in vitro with recombinant c-Src show that VEGFR-3 is a direct c-Src target and mass spectrometry analysis identified the sites phosphorylated by c-Src as tyrosine 830, 833, 853, 1063, 1333, and 1337, demonstrating that integrin-mediated receptor phosphorylation induces a phosphorylation pattern that is distinct from that induced by growth factors. Furthermore, pull-down assays show that integrin-mediated VEGFR-3 phosphorylation activates the recruitment to the receptor of the adaptor proteins CRKI/II and SHC inducing activation of JNK.
Conclusions
:
These data suggest that cell adhesion to extracellular matrix induces a downstream signaling using the tyrosine kinase receptor VEGFR-3 as scaffold.
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Affiliation(s)
- Federico Galvagni
- From Dipartimento di Biologia Molecolare (F.G., S.P., A.S., M.R., F.N., M.O., S.O.), Università degli Studi di Siena; Dipartimento di Pediatria (F.P.), Ostetricia e Medicina della riproduzione, Università degli Studi di Siena; Siena Biotech (S.G., G.L.S., G.C.T.); and Novartis Vaccines (G.M.), Siena, Italy
| | - Susanna Pennacchini
- From Dipartimento di Biologia Molecolare (F.G., S.P., A.S., M.R., F.N., M.O., S.O.), Università degli Studi di Siena; Dipartimento di Pediatria (F.P.), Ostetricia e Medicina della riproduzione, Università degli Studi di Siena; Siena Biotech (S.G., G.L.S., G.C.T.); and Novartis Vaccines (G.M.), Siena, Italy
| | - Ahmad Salameh
- From Dipartimento di Biologia Molecolare (F.G., S.P., A.S., M.R., F.N., M.O., S.O.), Università degli Studi di Siena; Dipartimento di Pediatria (F.P.), Ostetricia e Medicina della riproduzione, Università degli Studi di Siena; Siena Biotech (S.G., G.L.S., G.C.T.); and Novartis Vaccines (G.M.), Siena, Italy
| | - Marina Rocchigiani
- From Dipartimento di Biologia Molecolare (F.G., S.P., A.S., M.R., F.N., M.O., S.O.), Università degli Studi di Siena; Dipartimento di Pediatria (F.P.), Ostetricia e Medicina della riproduzione, Università degli Studi di Siena; Siena Biotech (S.G., G.L.S., G.C.T.); and Novartis Vaccines (G.M.), Siena, Italy
| | - Francesco Neri
- From Dipartimento di Biologia Molecolare (F.G., S.P., A.S., M.R., F.N., M.O., S.O.), Università degli Studi di Siena; Dipartimento di Pediatria (F.P.), Ostetricia e Medicina della riproduzione, Università degli Studi di Siena; Siena Biotech (S.G., G.L.S., G.C.T.); and Novartis Vaccines (G.M.), Siena, Italy
| | - Maurizio Orlandini
- From Dipartimento di Biologia Molecolare (F.G., S.P., A.S., M.R., F.N., M.O., S.O.), Università degli Studi di Siena; Dipartimento di Pediatria (F.P.), Ostetricia e Medicina della riproduzione, Università degli Studi di Siena; Siena Biotech (S.G., G.L.S., G.C.T.); and Novartis Vaccines (G.M.), Siena, Italy
| | - Felice Petraglia
- From Dipartimento di Biologia Molecolare (F.G., S.P., A.S., M.R., F.N., M.O., S.O.), Università degli Studi di Siena; Dipartimento di Pediatria (F.P.), Ostetricia e Medicina della riproduzione, Università degli Studi di Siena; Siena Biotech (S.G., G.L.S., G.C.T.); and Novartis Vaccines (G.M.), Siena, Italy
| | - Stefano Gotta
- From Dipartimento di Biologia Molecolare (F.G., S.P., A.S., M.R., F.N., M.O., S.O.), Università degli Studi di Siena; Dipartimento di Pediatria (F.P.), Ostetricia e Medicina della riproduzione, Università degli Studi di Siena; Siena Biotech (S.G., G.L.S., G.C.T.); and Novartis Vaccines (G.M.), Siena, Italy
| | - Gian Luca Sardone
- From Dipartimento di Biologia Molecolare (F.G., S.P., A.S., M.R., F.N., M.O., S.O.), Università degli Studi di Siena; Dipartimento di Pediatria (F.P.), Ostetricia e Medicina della riproduzione, Università degli Studi di Siena; Siena Biotech (S.G., G.L.S., G.C.T.); and Novartis Vaccines (G.M.), Siena, Italy
| | - Giacomo Matteucci
- From Dipartimento di Biologia Molecolare (F.G., S.P., A.S., M.R., F.N., M.O., S.O.), Università degli Studi di Siena; Dipartimento di Pediatria (F.P.), Ostetricia e Medicina della riproduzione, Università degli Studi di Siena; Siena Biotech (S.G., G.L.S., G.C.T.); and Novartis Vaccines (G.M.), Siena, Italy
| | - Georg C. Terstappen
- From Dipartimento di Biologia Molecolare (F.G., S.P., A.S., M.R., F.N., M.O., S.O.), Università degli Studi di Siena; Dipartimento di Pediatria (F.P.), Ostetricia e Medicina della riproduzione, Università degli Studi di Siena; Siena Biotech (S.G., G.L.S., G.C.T.); and Novartis Vaccines (G.M.), Siena, Italy
| | - Salvatore Oliviero
- From Dipartimento di Biologia Molecolare (F.G., S.P., A.S., M.R., F.N., M.O., S.O.), Università degli Studi di Siena; Dipartimento di Pediatria (F.P.), Ostetricia e Medicina della riproduzione, Università degli Studi di Siena; Siena Biotech (S.G., G.L.S., G.C.T.); and Novartis Vaccines (G.M.), Siena, Italy
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Rai P, Kota V, Sundaram CS, Deendayal M, Shivaji S. Proteome of human endometrium: Identification of differentially expressed proteins in proliferative and secretory phase endometrium. Proteomics Clin Appl 2009; 4:48-59. [DOI: 10.1002/prca.200900094] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2009] [Revised: 09/11/2009] [Accepted: 09/16/2009] [Indexed: 12/26/2022]
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An HJ, Ryu SJ, Kim SY, Choi HR, Chung JH, Park SC. Age associated high level of major vault protein is p53 dependent. Cell Biochem Funct 2009; 27:289-95. [PMID: 19472297 DOI: 10.1002/cbf.1571] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Major vault protein (MVP) represents the main component of vaults and has been linked to multi-drug resistance (MDR) in cancer cells. We previously reported that MVP plays an important role in the resistance of senescent human diploid fibroblasts (HDFs) to apoptosis and also that MVP expression is markedly reduced in young HDFs but not in senescent HDFs. In this study, designed to elucidate the regulation of MVP in young and senescent HDFs, we examined the levels of transcriptional factors for the MVP gene, which revealed that among the putative transcriptional factors, p53 decreased only in young HDFs, but not in senescent HDFs in response to H(2)O(2) treatment in the same mode as the expression of MVP. Moreover, the phosphorylation status of p53 increased only in senescent HDFs but not in young HDFs in response to H(2)O(2) treatment. Therefore, we tested the possibility of MVP regulation by p53 status. MVP is upregulated in p53 over-expressing young HDFs, while MVP is downregulated in p53-specific small interfering RNA (siRNA)-transfected senescent HDFs, which suggests that the expression of MVP would be p53 dependent. Furthermore, using chromatin immunoprecipitation (ChIP) assay, we observed that p53 binds directly to the MVP promoter. Taken together, these results suggest that p53 would be a major transcriptional factor for MVP gene expression.
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Affiliation(s)
- Hong-Joo An
- Department of Biochemistry and Molecular Biology, Aging and Apoptosis Research Center, Seoul National University College of Medicine, Korea
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Ryu SJ, Park SC. Targeting major vault protein in senescence-associated apoptosis resistance. Expert Opin Ther Targets 2009; 13:479-84. [PMID: 19335069 DOI: 10.1517/14728220902832705] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND Recent studies have shown that major vault protein (MVP) is involved in intracellular signaling, cell survival, differentiation and innate immunity and that it is not directly responsible for nucleo-cytoplasmic drug transport in multi-drug-resistant cancer cell lines. Recently, we reported that MVP increases with age both in vitro and in vivo, and that age-related upregulation of MVP facilitates apoptosis resistance of senescent human diploid fibroblasts (HDFs) based on the interaction with c-Jun-mediated downregulation of bcl-2. OBJECTIVES To discuss the role of MVP in cell survival and signaling in the development of resistance to apoptosis exhibited by senescent HDFs. CONCLUSIONS MVP represents a versatile platform for regulation of cellular signaling and survival and is a potential therapeutic target for modulation of resistance to apoptosis, implicated in aging modulation and cancer treatment.
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Affiliation(s)
- Sung Jin Ryu
- Department of Biochemistry and Molecular Biology, Seoul National University College of Medicine, Aging and Apoptosis Research Center, Seoul, South Korea
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Chen LC, Liu HP, Li HP, Hsueh C, Yu JS, Liang CL, Chang YS. Thymidine phosphorylase mRNA stability and protein levels are increased through ERK-mediated cytoplasmic accumulation of hnRNP K in nasopharyngeal carcinoma cells. Oncogene 2009; 28:1904-15. [DOI: 10.1038/onc.2009.55] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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50
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Tanaka H, Kato K, Yamashita E, Sumizawa T, Zhou Y, Yao M, Iwasaki K, Yoshimura M, Tsukihara T. The structure of rat liver vault at 3.5 angstrom resolution. Science 2009; 323:384-8. [PMID: 19150846 DOI: 10.1126/science.1164975] [Citation(s) in RCA: 104] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Vaults are among the largest cytoplasmic ribonucleoprotein particles and are found in numerous eukaryotic species. Roles in multidrug resistance and innate immunity have been suggested, but the cellular function remains unclear. We have determined the x-ray structure of rat liver vault at 3.5 angstrom resolution and show that the cage structure consists of a dimer of half-vaults, with each half-vault comprising 39 identical major vault protein (MVP) chains. Each MVP monomer folds into 12 domains: nine structural repeat domains, a shoulder domain, a cap-helix domain, and a cap-ring domain. Interactions between the 42-turn-long cap-helix domains are key to stabilizing the particle. The shoulder domain is structurally similar to a core domain of stomatin, a lipid-raft component in erythrocytes and epithelial cells.
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Affiliation(s)
- Hideaki Tanaka
- Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita, Osaka 565-0871, Japan
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