1
|
Turkova T, Kokavec J, Zikmund T, Dibus N, Pimkova K, Nemec D, Holeckova M, Ruskova L, Sedlacek R, Cermak L, Stopka T. Differential requirements for Smarca5 expression during hematopoietic stem cell commitment. Commun Biol 2024; 7:244. [PMID: 38424235 PMCID: PMC10904812 DOI: 10.1038/s42003-024-05917-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 02/14/2024] [Indexed: 03/02/2024] Open
Abstract
The formation of hematopoietic cells relies on the chromatin remodeling activities of ISWI ATPase SMARCA5 (SNF2H) and its complexes. The Smarca5 null and conditional alleles have been used to study its functions in embryonic and organ development in mice. These mouse model phenotypes vary from embryonic lethality of constitutive knockout to less severe phenotypes observed in tissue-specific Smarca5 deletions, e.g., in the hematopoietic system. Here we show that, in a gene dosage-dependent manner, the hypomorphic allele of SMARCA5 (S5tg) can rescue not only the developmental arrest in hematopoiesis in the hCD2iCre model but also the lethal phenotypes associated with constitutive Smarca5 deletion or Vav1iCre-driven conditional knockout in hematopoietic progenitor cells. Interestingly, the latter model also provided evidence for the role of SMARCA5 expression level in hematopoietic stem cells, as the Vav1iCre S5tg animals accumulate stem and progenitor cells. Furthermore, their hematopoietic stem cells exhibited impaired lymphoid lineage entry and differentiation. This observation contrasts with the myeloid lineage which is developing without significant disturbances. Our findings indicate that animals with low expression of SMARCA5 exhibit normal embryonic development with altered lymphoid entry within the hematopoietic stem cell compartment.
Collapse
Grants
- 24-10435S, 24-10353S Grantová Agentura České Republiky (Grant Agency of the Czech Republic)
- NU21-08-00312, NU22-05-00374 Ministerstvo Zdravotnictví Ceské Republiky (Ministry of Health of the Czech Republic)
- LX22NPO5102, SVV 260637, UNCE/MED/016, COOPERATIO Ministerstvo Školství, Mládeže a Tělovýchovy (Ministry of Education, Youth and Sports)
- CZ.02.1.01/0.0/0.0/16_013/0001789, CZ.02.1.01/0.0/0.0/18_046/0015861 Ministerstvo Školství, Mládeže a Tělovýchovy (Ministry of Education, Youth and Sports)
Collapse
Affiliation(s)
- Tereza Turkova
- Hematology Laboratories, BIOCEV; 1st Faculty of Medicine, Charles University, Vestec, Czech Republic
| | - Juraj Kokavec
- Hematology Laboratories, BIOCEV; 1st Faculty of Medicine, Charles University, Vestec, Czech Republic
| | - Tomas Zikmund
- Hematology Laboratories, BIOCEV; 1st Faculty of Medicine, Charles University, Vestec, Czech Republic
| | - Nikol Dibus
- Laboratory of Cancer Biology, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czech Republic
| | - Kristyna Pimkova
- Hematology Laboratories, BIOCEV; 1st Faculty of Medicine, Charles University, Vestec, Czech Republic
| | - Dusan Nemec
- Hematology Laboratories, BIOCEV; 1st Faculty of Medicine, Charles University, Vestec, Czech Republic
| | - Marketa Holeckova
- Hematology Laboratories, BIOCEV; 1st Faculty of Medicine, Charles University, Vestec, Czech Republic
| | - Livia Ruskova
- Hematology Laboratories, BIOCEV; 1st Faculty of Medicine, Charles University, Vestec, Czech Republic
| | - Radislav Sedlacek
- Czech Centre for Phenogenomics, Institute of Molecular Genetics of the Czech Academy of Sciences, Vestec, Czech Republic
| | - Lukas Cermak
- Laboratory of Cancer Biology, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czech Republic.
| | - Tomas Stopka
- Hematology Laboratories, BIOCEV; 1st Faculty of Medicine, Charles University, Vestec, Czech Republic.
| |
Collapse
|
2
|
Dibus N, Korinek V, Cermak L. FBXO38 Ubiquitin Ligase Controls Centromere Integrity via ZXDA/B Stability. Front Cell Dev Biol 2022; 10:929288. [PMID: 35813202 PMCID: PMC9260856 DOI: 10.3389/fcell.2022.929288] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 06/02/2022] [Indexed: 11/13/2022] Open
Abstract
Alterations in the gene encoding the E3 ubiquitin ligase substrate receptor FBXO38 have been associated with several diseases, including early-onset motor neuronopathy. However, the cellular processes affected by the enzymatic action of FBXO38 are not yet known. Here, we identify the zinc finger proteins ZXDA/B as its interaction partners. FBXO38 controls the stability of ZXDA/B proteins via ubiquitination and proteasome-dependent degradation. We show that ZXDA/B proteins associate with the centromeric protein CENP-B and that the interaction between ZXDA/B and FBXO38 or CENP-B is mutually exclusive. Functionally, ZXDA/B factors control the protein level of chromatin-associated CENP-B. Furthermore, their inappropriate stabilization leads to upregulation of CENP-A and CENP-B positive centromeric chromatin. Thus we demonstrate a previously unknown role of cullin-dependent protein degradation in the control of centromeric chromatin integrity.
Collapse
Affiliation(s)
- Nikol Dibus
- Laboratory of Cancer Biology, Institute of Molecular Genetics of the Czech Academy of Sciences, Vestec, Czechia
| | - Vladimir Korinek
- Laboratory of Cell and Developmental Biology, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czechia
| | - Lukas Cermak
- Laboratory of Cancer Biology, Institute of Molecular Genetics of the Czech Academy of Sciences, Vestec, Czechia
- *Correspondence: Lukas Cermak,
| |
Collapse
|
3
|
Dibus N, Zobalova E, Monleon MAM, Korinek V, Filipp D, Petrusova J, Sedlacek R, Kasparek P, Cermak L. FBXO38 Ubiquitin Ligase Controls Sertoli Cell Maturation. Front Cell Dev Biol 2022; 10:914053. [PMID: 35769260 PMCID: PMC9234700 DOI: 10.3389/fcell.2022.914053] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 05/19/2022] [Indexed: 12/18/2022] Open
Abstract
The ubiquitin ligase SCFFBXO38 controls centromeric chromatin by promoting the degradation of the ZXDB protein. To determine the importance of this pathway during development, Fbxo38-deficient mice were generated. The loss of FBXO38 resulted in growth retardation affecting several organs, including the male reproductive system. A detailed analysis of the mutant testes revealed pathological changes in the seminiferous tubules, accompanied by a significant decrease in sperm production and reduced fertility. In adult testes, FBXO38 was specifically expressed in Sertoli cells, a somatic population essential for spermatogenesis initiation and progression. Sertoli cells lacking FBXO38 exhibited stabilized ZXDB protein and upregulated centromeric chromatin. Furthermore, the gene expression profile revealed that the absence of FBXO38 led to a defect in Sertoli cell maturation, specifically characterized by dysregulation in genes controlling retinoic acid metabolism and intercellular communication. Consequently, we documented significant changes in their ability to initiate spermatogonial differentiation. In conclusion, we show that FBXO38 acts as a Sertoli cell maturation factor, affecting the Sertoli cell transcription program, centromere integrity, and, subsequently, the ability to control spermatogenesis.
Collapse
Affiliation(s)
- Nikol Dibus
- Laboratory of Cancer Biology, Institute of Molecular Genetics of the Czech Academy of Sciences, Vestec, Czechia
- Faculty of Science, Charles University, Prague, Czechia
| | - Eliska Zobalova
- Laboratory of Cancer Biology, Institute of Molecular Genetics of the Czech Academy of Sciences, Vestec, Czechia
| | - Mario A. M. Monleon
- Laboratory of Cancer Biology, Institute of Molecular Genetics of the Czech Academy of Sciences, Vestec, Czechia
| | - Vladimir Korinek
- Laboratory of Cell and Developmental Biology, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czechia
| | - Dominik Filipp
- Laboratory of Immunobiology, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czechia
| | - Jana Petrusova
- Laboratory of Immunobiology, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czechia
| | - Radislav Sedlacek
- Czech Centre for Phenogenomics, Institute of Molecular Genetics of the Czech Academy of Sciences, Vestec, Czechia
| | - Petr Kasparek
- Czech Centre for Phenogenomics, Institute of Molecular Genetics of the Czech Academy of Sciences, Vestec, Czechia
| | - Lukas Cermak
- Laboratory of Cancer Biology, Institute of Molecular Genetics of the Czech Academy of Sciences, Vestec, Czechia
- *Correspondence: Lukas Cermak,
| |
Collapse
|
4
|
Lidak T, Baloghova N, Korinek V, Sedlacek R, Balounova J, Kasparek P, Cermak L. CRL4-DCAF12 Ubiquitin Ligase Controls MOV10 RNA Helicase during Spermatogenesis and T Cell Activation. Int J Mol Sci 2021; 22:5394. [PMID: 34065512 PMCID: PMC8161014 DOI: 10.3390/ijms22105394] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Revised: 05/12/2021] [Accepted: 05/16/2021] [Indexed: 12/27/2022] Open
Abstract
Multisubunit cullin-RING ubiquitin ligase 4 (CRL4)-DCAF12 recognizes the C-terminal degron containing acidic amino acid residues. However, its physiological roles and substrates are largely unknown. Purification of CRL4-DCAF12 complexes revealed a wide range of potential substrates, including MOV10, an "ancient" RNA-induced silencing complex (RISC) complex RNA helicase. We show that DCAF12 controls the MOV10 protein level via its C-terminal motif in a proteasome- and CRL-dependent manner. Next, we generated Dcaf12 knockout mice and demonstrated that the DCAF12-mediated degradation of MOV10 is conserved in mice and humans. Detailed analysis of Dcaf12-deficient mice revealed that their testes produce fewer mature sperms, phenotype accompanied by elevated MOV10 and imbalance in meiotic markers SCP3 and γ-H2AX. Additionally, the percentages of splenic CD4+ T and natural killer T (NKT) cell populations were significantly altered. In vitro, activated Dcaf12-deficient T cells displayed inappropriately stabilized MOV10 and increased levels of activated caspases. In summary, we identified MOV10 as a novel substrate of CRL4-DCAF12 and demonstrated the biological relevance of the DCAF12-MOV10 pathway in spermatogenesis and T cell activation.
Collapse
Affiliation(s)
- Tomas Lidak
- Laboratory of Cancer Biology, Institute of Molecular Genetics of the Czech Academy of Sciences, 252 42 Vestec, Czech Republic; (T.L.); (N.B.); (V.K.)
- Faculty of Science, Charles University, 128 00 Prague, Czech Republic
| | - Nikol Baloghova
- Laboratory of Cancer Biology, Institute of Molecular Genetics of the Czech Academy of Sciences, 252 42 Vestec, Czech Republic; (T.L.); (N.B.); (V.K.)
| | - Vladimir Korinek
- Laboratory of Cancer Biology, Institute of Molecular Genetics of the Czech Academy of Sciences, 252 42 Vestec, Czech Republic; (T.L.); (N.B.); (V.K.)
- Laboratory of Cell and Developmental Biology, Institute of Molecular Genetics of the Czech Academy of Sciences, 252 42 Vestec, Czech Republic
| | - Radislav Sedlacek
- Czech Centre for Phenogenomics, Institute of Molecular Genetics of the Czech Academy of Sciences, 252 50 Vestec, Czech Republic; (R.S.); (J.B.); (P.K.)
| | - Jana Balounova
- Czech Centre for Phenogenomics, Institute of Molecular Genetics of the Czech Academy of Sciences, 252 50 Vestec, Czech Republic; (R.S.); (J.B.); (P.K.)
| | - Petr Kasparek
- Czech Centre for Phenogenomics, Institute of Molecular Genetics of the Czech Academy of Sciences, 252 50 Vestec, Czech Republic; (R.S.); (J.B.); (P.K.)
| | - Lukas Cermak
- Laboratory of Cancer Biology, Institute of Molecular Genetics of the Czech Academy of Sciences, 252 42 Vestec, Czech Republic; (T.L.); (N.B.); (V.K.)
| |
Collapse
|
5
|
Baloghova N, Lidak T, Cermak L. Ubiquitin Ligases Involved in the Regulation of Wnt, TGF-β, and Notch Signaling Pathways and Their Roles in Mouse Development and Homeostasis. Genes (Basel) 2019; 10:genes10100815. [PMID: 31623112 PMCID: PMC6826584 DOI: 10.3390/genes10100815] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Revised: 10/02/2019] [Accepted: 10/13/2019] [Indexed: 12/20/2022] Open
Abstract
The Wnt, TGF-β, and Notch signaling pathways are essential for the regulation of cellular polarity, differentiation, proliferation, and migration. Differential activation and mutual crosstalk of these pathways during animal development are crucial instructive forces in the initiation of the body axis and the development of organs and tissues. Due to the ability to initiate cell proliferation, these pathways are vulnerable to somatic mutations selectively producing cells, which ultimately slip through cellular and organismal checkpoints and develop into cancer. The architecture of the Wnt, TGF-β, and Notch signaling pathways is simple. The transmembrane receptor, activated by the extracellular stimulus, induces nuclear translocation of the transcription factor, which subsequently changes the expression of target genes. Nevertheless, these pathways are regulated by a myriad of factors involved in various feedback mechanisms or crosstalk. The most prominent group of regulators is the ubiquitin-proteasome system (UPS). To open the door to UPS-based therapeutic manipulations, a thorough understanding of these regulations at a molecular level and rigorous confirmation in vivo are required. In this quest, mouse models are exceptional and, thanks to the progress in genetic engineering, also an accessible tool. Here, we reviewed the current understanding of how the UPS regulates the Wnt, TGF-β, and Notch pathways and we summarized the knowledge gained from related mouse models.
Collapse
Affiliation(s)
- Nikol Baloghova
- Laboratory of Cancer Biology, Division BIOCEV, Institute of Molecular Genetics of the Czech Academy of Sciences, 252 42 Vestec, Czech Republic.
| | - Tomas Lidak
- Laboratory of Cancer Biology, Division BIOCEV, Institute of Molecular Genetics of the Czech Academy of Sciences, 252 42 Vestec, Czech Republic.
| | - Lukas Cermak
- Laboratory of Cancer Biology, Division BIOCEV, Institute of Molecular Genetics of the Czech Academy of Sciences, 252 42 Vestec, Czech Republic.
| |
Collapse
|
6
|
Svadlenka J, Brazina J, Hanzlikova H, Cermak L, Andera L. Multifunctional adaptor protein Daxx interacts with chromatin-remodelling ATPase Brg1. Biochem Biophys Rep 2015; 5:246-252. [PMID: 28955830 PMCID: PMC5600331 DOI: 10.1016/j.bbrep.2015.12.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Revised: 11/25/2015] [Accepted: 12/28/2015] [Indexed: 01/22/2023] Open
Abstract
Multifunctional adapter and chaperone protein Daxx participates in the regulation of a number of mainly transcription-related processes. Most notably in a complex with chromatin-remodelling ATPase ATRX, Daxx serves as a histone H3.3 chaperone at telomeric regions and certain genes. In this report we document that Daxx interacts with another chromatin-remodelling, ATPase Brg1. We confirm the Daxx-Brg1 association both in vitro and in cells and show that Daxx interacts with Brg1 in high-molecular-weight complexes. Ectopic co-expression of Daxx with Brg1 and PML could shift disperse nuclear localisation of Brg1 into PML bodies. Mapping the Daxx-Brg1 interaction revealed that Daxx preferentially binds the region between Brg1 N-terminal QLQ and HSA domains, but also weakly interacts with its C-terminal part. Brg1 interacted with both the central and N-terminal parts of Daxx. SiRNA-mediated down-regulation of Daxx in SW13 adrenal carcinoma cells markedly enhanced expression of Brg1-activated genes CD44 or SCEL, suggesting that Daxx either directly through Brg1 and/or indirectly via other factors is a negative regulator of their transcription. Our findings point to Brg1 as another chromatin-remodelling protein that might similarly, as ATRX, target Daxx to specific chromatin regions where it can carry out its chromatin- and transcription-regulating functions.
Collapse
Affiliation(s)
- Jan Svadlenka
- Institute of Molecular Genetics AS CR, Czech Republic
| | - Jan Brazina
- Institute of Molecular Genetics AS CR, Czech Republic
| | | | - Lukas Cermak
- Department of Pathology, New York University School of Medicine, New York, USA
| | - Ladislav Andera
- Institute of Molecular Genetics AS CR, Czech Republic.,Institute of Biotechnology AS CR, Prague, Czech Republic
| |
Collapse
|
7
|
Joch M, Cermak L, Hakl J, Hucko B, Duskova D, Marounek M. In vitro Screening of Essential Oil Active Compounds for Manipulation of Rumen Fermentation and Methane Mitigation. Asian-Australas J Anim Sci 2015; 29:952-9. [PMID: 26954157 PMCID: PMC4932589 DOI: 10.5713/ajas.15.0474] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Revised: 09/17/2015] [Accepted: 10/08/2015] [Indexed: 11/27/2022]
Abstract
The objective of this study was to investigate the effects of 11 active compounds of essential oils (ACEO) on rumen fermentation characteristics and methane production. Two trials were conducted. In trial 1, ACEO (eugenol, carvacrol, citral, limonene, 1,4-cineole, p-cymene, linalool, bornyl acetate, α-pinene, and β-pinene) at a dose of 1,000 μL/L were incubated for 24 h in diluted rumen fluid with a 70:30 forage:concentrate substrate (16.2% crude protein; 36.6% neutral detergent fiber). Three fistulated Holstein cows were used as donors of rumen fluid. The reduction in methane production was observed with nine ACEO (up to 86% reduction) compared with the control (p<0.05). Among these, only limonene, 1,4-cineole, bornyl acetate, and α-pinene did not inhibit volatile fatty acid (VFA) production, and only bornyl acetate produced less methane per mol of VFA compared with the control (p<0.05). In a subsequent trial, the effects on rumen fermentation and methane production of two concentrations (500 and 2,000 μL/L) of bornyl acetate, the most promising ACEO from the first trial, were evaluated using the same in vitro incubation method that was used in the first trial. In trial 2, monensin was used as a positive control. Both doses of bornyl acetate decreased (p<0.05) methane production and did not inhibit VFA production. Positive effects of bornyl acetate on methane and VFA production were more pronounced than the effects of monensin. These results confirm the ability of bornyl acetate to decrease methane production, which may help to improve the efficiency of energy use in the rumen.
Collapse
Affiliation(s)
- M Joch
- Institute of Animal Science, Prague Uhrineves 10400, Czech Republic
| | - L Cermak
- Institute of Animal Science, Prague Uhrineves 10400, Czech Republic
| | - J Hakl
- Department of Forage Crops and Grassland Management, Czech University of Life Sciences, Prague 16521, Czech Republic
| | - B Hucko
- Department of Microbiology, Nutrition and Dietetics, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences, Prague 16521, Czech Republic
| | - D Duskova
- Institute of Animal Science, Prague Uhrineves 10400, Czech Republic
| | - M Marounek
- Institute of Animal Science, Prague Uhrineves 10400, Czech Republic
| |
Collapse
|
8
|
Horn M, Geisen C, Cermak L, Becker B, Nakamura S, Klein C, Pagano M, Antebi A. DRE-1/FBXO11-dependent degradation of BLMP-1/BLIMP-1 governs C. elegans developmental timing and maturation. Dev Cell 2014; 28:697-710. [PMID: 24613396 DOI: 10.1016/j.devcel.2014.01.028] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Revised: 01/22/2014] [Accepted: 01/28/2014] [Indexed: 11/26/2022]
Abstract
Developmental timing genes catalyze stem cell progression and animal maturation programs across taxa. Caenorhabditis elegans DRE-1/FBXO11 functions in an SCF E3-ubiquitin ligase complex to regulate the transition to adult programs, but its cognate proteolytic substrates are unknown. Here, we identify the conserved transcription factor BLMP-1 as a substrate of the SCF(DRE-1/FBXO11) complex. blmp-1 deletion suppressed dre-1 mutant phenotypes and exhibited developmental timing defects opposite to dre-1. blmp-1 also opposed dre-1 for other life history traits, including entry into the dauer diapause and longevity. BLMP-1 protein was strikingly elevated upon dre-1 depletion and dysregulated in a stage- and tissue-specific manner. The role of DRE-1 in regulating BLMP-1 stability is evolutionary conserved, as we observed direct protein interaction and degradation function for worm and human counterparts. Taken together, posttranslational regulation of BLMP-1/BLIMP-1 by DRE-1/FBXO11 coordinates C. elegans developmental timing and other life history traits, suggesting that this two-protein module mediates metazoan maturation processes.
Collapse
Affiliation(s)
- Moritz Horn
- Max Planck Institute for Biology of Ageing, Joseph-Stelzmann-Straße 9b, 50931 Cologne, Germany; Cologne Excellence Cluster on Cellular Stress Responses in Aging Associated Diseases (CECAD), University of Cologne, 50674 Cologne, Germany
| | - Christoph Geisen
- Max Planck Institute for Biology of Ageing, Joseph-Stelzmann-Straße 9b, 50931 Cologne, Germany
| | - Lukas Cermak
- Department of Pathology, NYU Cancer Institute, New York University School of Medicine, 522 First Avenue, SRB 1107, New York, NY 10016, USA; Howard Hughes Medical Institute, Department of Pathology, NYU Cancer Institute, New York University School of Medicine, 522 First Avenue, SRB 1107, New York, NY 10016, USA
| | - Ben Becker
- Max Planck Institute for Biology of Ageing, Joseph-Stelzmann-Straße 9b, 50931 Cologne, Germany
| | - Shuhei Nakamura
- Max Planck Institute for Biology of Ageing, Joseph-Stelzmann-Straße 9b, 50931 Cologne, Germany
| | - Corinna Klein
- Max Planck Institute for Biology of Ageing, Joseph-Stelzmann-Straße 9b, 50931 Cologne, Germany
| | - Michele Pagano
- Department of Pathology, NYU Cancer Institute, New York University School of Medicine, 522 First Avenue, SRB 1107, New York, NY 10016, USA; Howard Hughes Medical Institute, Department of Pathology, NYU Cancer Institute, New York University School of Medicine, 522 First Avenue, SRB 1107, New York, NY 10016, USA
| | - Adam Antebi
- Max Planck Institute for Biology of Ageing, Joseph-Stelzmann-Straße 9b, 50931 Cologne, Germany; Cologne Excellence Cluster on Cellular Stress Responses in Aging Associated Diseases (CECAD), University of Cologne, 50674 Cologne, Germany; Department of Molecular and Cellular Biology, Huffington Center on Aging, Baylor College of Medicine, Houston, TX 77030, USA.
| |
Collapse
|
9
|
Jeong YT, Rossi M, Cermak L, Saraf A, Florens L, Washburn MP, Sung P, Schildkraut CL, Pagano M. FBH1 promotes DNA double-strand breakage and apoptosis in response to DNA replication stress. J Biophys Biochem Cytol 2013. [PMCID: PMC3691454 DOI: 10.1083/jcb.20120900206062013c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
|
10
|
Jeong YT, Cermak L, Guijarro MV, Hernando E, Pagano M. FBH1 protects melanocytes from transformation and is deregulated in melanomas. Cell Cycle 2013; 12:1128-32. [PMID: 23466708 DOI: 10.4161/cc.24165] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
FBH1 is a member of the UvrD family of DNA helicases and plays a crucial role in the response to DNA replication stress. In particular, upon DNA replication stress, FBH1 promotes double-strand breakage and activation of the DNA-PK and ATM signaling cascades in a helicase-dependent manner. In the present manuscript, we show that FBH1 is often deleted or mutated in melanoma cells, which results in their increased survival in response to replicative stress. Accordingly, FBH1 depletion promotes UV-mediated transformation of human melanocytes. Thus, FBH1 inactivation appears to contribute to oncogenic transformation by allowing survival of cells undergoing replicative stress due to external factors such as UV irradiation.
Collapse
Affiliation(s)
- Yeon-Tae Jeong
- Department of Pathology, NYU Cancer Institute, New York University School of Medicine, New York, NY, USA
| | | | | | | | | |
Collapse
|
11
|
Jeong YT, Rossi M, Cermak L, Saraf A, Florens L, Washburn MP, Sung P, Schildkraut CL, Schildkraut C, Pagano M. FBH1 promotes DNA double-strand breakage and apoptosis in response to DNA replication stress. ACTA ACUST UNITED AC 2013; 200:141-9. [PMID: 23319600 PMCID: PMC3549964 DOI: 10.1083/jcb.201209002] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
Enzymatic activity of the UvrD DNA helicase FBH1 is required for the efficient induction of DSBs and apoptosis specifically in response to DNA replication stress. Proper resolution of stalled replication forks is essential for genome stability. Purification of FBH1, a UvrD DNA helicase, identified a physical interaction with replication protein A (RPA), the major cellular single-stranded DNA (ssDNA)–binding protein complex. Compared with control cells, FBH1-depleted cells responded to replication stress with considerably fewer double-strand breaks (DSBs), a dramatic reduction in the activation of ATM and DNA-PK and phosphorylation of RPA2 and p53, and a significantly increased rate of survival. A minor decrease in ssDNA levels was also observed. All these phenotypes were rescued by wild-type FBH1, but not a FBH1 mutant lacking helicase activity. FBH1 depletion had no effect on other forms of genotoxic stress in which DSBs form by means that do not require ssDNA intermediates. In response to catastrophic genotoxic stress, apoptosis prevents the persistence and propagation of DNA lesions. Our findings show that FBH1 helicase activity is required for the efficient induction of DSBs and apoptosis specifically in response to DNA replication stress.
Collapse
Affiliation(s)
- Yeon-Tae Jeong
- Department of Pathology, NYU Cancer Institute, New York University School of Medicine, New York, NY 10016, USA
| | | | | | | | | | | | | | | | | | | |
Collapse
|
12
|
Duan S, Cermak L, Pagan JK, Rossi M, Martinengo C, di Celle PF, Chapuy B, Shipp M, Chiarle R, Pagano M. FBXO11 targets BCL6 for degradation and is inactivated in diffuse large B-cell lymphomas. Nature 2012; 481:90-3. [PMID: 22113614 DOI: 10.1038/nature10688] [Citation(s) in RCA: 216] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2011] [Revised: 01/04/2012] [Accepted: 10/28/2011] [Indexed: 01/26/2023]
Abstract
BCL6 is the product of a proto-oncogene implicated in the pathogenesis of human B-cell lymphomas. By binding specific DNA sequences, BCL6 controls the transcription of a variety of genes involved in B-cell development, differentiation and activation. BCL6 is overexpressed in the majority of patients with aggressive diffuse large B-cell lymphoma (DLBCL), the most common lymphoma in adulthood, and transgenic mice constitutively expressing BCL6 in B cells develop DLBCLs similar to the human disease. In many DLBCL patients, BCL6 overexpression is achieved through translocation (~40%) or hypermutation of its promoter (~15%). However, many other DLBCLs overexpress BCL6 through an unknown mechanism. Here we show that BCL6 is targeted for ubiquitylation and proteasomal degradation by a SKP1–CUL1–F-box protein (SCF) ubiquitin ligase complex that contains the orphan F-box protein FBXO11 (refs 5, 6). The gene encoding FBXO11 was found to be deleted or mutated in multiple DLBCL cell lines, and this inactivation of FBXO11 correlated with increased levels and stability of BCL6. Similarly, FBXO11 was either deleted or mutated in primary DLBCLs. Notably, tumour-derived FBXO11 mutants displayed an impaired ability to induce BCL6 degradation. Reconstitution of FBXO11 expression in FBXO11-deleted DLBCL cells promoted BCL6 ubiquitylation and degradation, inhibited cell proliferation, and induced cell death. FBXO11-deleted DLBCL cells generated tumours in immunodeficient mice, and the tumorigenicity was suppressed by FBXO11 reconstitution. We reveal a molecular mechanism controlling BCL6 stability and propose that mutations and deletions in FBXO11 contribute to lymphomagenesis through BCL6 stabilization. The deletions/mutations found in DLBCLs are largely monoallelic, indicating that FBXO11 is a haplo-insufficient tumour suppressor gene.
Collapse
Affiliation(s)
- Shanshan Duan
- Department of Pathology, NYU Cancer Institute, New York University School of Medicine, New York, New York 10016, USA
| | | | | | | | | | | | | | | | | | | |
Collapse
|
13
|
Símová S, Klíma M, Cermak L, Sourková V, Andera L. Arf and Rho GAP adapter protein ARAP1 participates in the mobilization of TRAIL-R1/DR4 to the plasma membrane. Apoptosis 2008; 13:423-36. [PMID: 18165900 DOI: 10.1007/s10495-007-0171-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
TRAIL, a ligand of the TNFalpha family, induces upon binding to its pro-death receptors TRAIL-R1/DR4 and TRAIL-R2/DR5 the apoptosis of cancer cells. Activated receptors incite the formation of the Death-Inducing Signaling Complex followed by the activation of the downstream apoptotic signaling. TRAIL-induced apoptosis is regulated at multiple levels, one of them being the presence and relative number of TRAIL pro- and anti-apoptotic receptors on the cytoplasmic membrane. In a yeast two-hybrid search for proteins that interact with the intracellular part (ICP) of DR4, we picked ARAP1, an adapter protein with ArfGAP and RhoGAP activities. In yeast, DR4(ICP) interacts with the alternatively spliced ARAP1 lacking 11 amino acids from the PH5 domain. Transfected ARAP1 co-precipitates with DR4 and co-localizes with it in the endoplasmic reticulum/Golgi, at the cytoplasmic membrane and in early endosomes of TRAIL-treated cells. ARAP1 knockdown significantly compromises the localization of DR4 at the cell surface of several tumor cell lines and slows down their TRAIL-induced death. ARAP1 overexpressed in HEL cells does not affect their TRAIL-induced apoptosis or the membrane localization of DR4, but it enhances the cell-surface presentation of phosphatidyl serine. Our data indicate that ARAP1 is likely involved in the regulation of the cell-specific trafficking of DR4 and might thus affect the efficacy of TRAIL-induced apoptosis.
Collapse
Affiliation(s)
- Sárka Símová
- Laboratory of Cell Signaling and Apoptosis, Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, Vídenská 1083, 14220, Praha 4, Czech Republic
| | | | | | | | | |
Collapse
|
14
|
Drosopoulos KG, Roberts ML, Cermak L, Sasazuki T, Shirasawa S, Andera L, Pintzas A. Transformation by oncogenic RAS sensitizes human colon cells to TRAIL-induced apoptosis by up-regulating death receptor 4 and death receptor 5 through a MEK-dependent pathway. J Biol Chem 2005; 280:22856-67. [PMID: 15757891 DOI: 10.1074/jbc.m412483200] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
RAS oncogenes play a major role in cancer development by activating an array of signaling pathways, most notably mitogen-activated protein kinases, resulting in aberrant proliferation and inhibition of apoptotic signaling cascades, rendering transformed cells resistant to extrinsic death stimuli. However, tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) is able to kill specific tumor cells through the engagement of its receptors, death receptor 4 (DR4) and death receptor 5 (DR5), and the activation of apoptotic pathways, providing promising targets for anticancer therapies. In this study, we show that TRAIL induces cell death in human colon adenocarcinoma cells in a MEK-dependent manner. We also report a prolonged MEK-dependent activation of ERK1/2 and increased c-FOS expression induced by TRAIL in this system. Our study reveals that transformation of the colon cell line Caco-2 by Ki- and mainly by Ha-ras oncogenes sensitizes these cells to TRAIL-induced apoptosis by causing specific MEK-dependent up-regulation of DR4 and DR5. These observations taken together reveal that RAS-MEK-ERK1/2 signaling pathway can sensitize cells to TRAIL-induced apoptosis by up-regulating DR4 and DR5 and overall imply that TRAIL-based therapeutic strategies using TRAIL agonists could be used in cases of human colon cancers bearing RAS mutations.
Collapse
Affiliation(s)
- Konstantinos G Drosopoulos
- Laboratory of Signal Mediated Gene Expression, Institute of Biological Research and Biotechnology, National Hellenic Research Foundation, Athens, Greece
| | | | | | | | | | | | | |
Collapse
|
15
|
Zavadil J, Cermak L, Soto-Nieves N, Böttinger EP. Integration of TGF-beta/Smad and Jagged1/Notch signalling in epithelial-to-mesenchymal transition. EMBO J 2004; 23:1155-65. [PMID: 14976548 PMCID: PMC380966 DOI: 10.1038/sj.emboj.7600069] [Citation(s) in RCA: 577] [Impact Index Per Article: 28.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2003] [Accepted: 12/16/2003] [Indexed: 12/11/2022] Open
Abstract
Epithelial-to-mesenchymal transitions (EMTs) underlie cell plasticity required in embryonic development and frequently observed in advanced carcinogenesis. Transforming growth factor-beta (TGF-beta) induces EMT phenotypes in epithelial cells in vitro and has been associated with EMT in vivo. Here we report that expression of the hairy/enhancer-of-split-related transcriptional repressor Hey1, and the Notch-ligand Jagged1 (Jag1), was induced by TGF-beta at the onset of EMT in epithelial cells from mammary gland, kidney tubules, and epidermis. The HEY1 expression profile was biphasic, consisting of immediate-early Smad3-dependent, Jagged1/Notch-independent activation, followed by delayed, indirect Jagged1/Notch-dependent activation. TGF-beta-induced EMT was blocked by RNA silencing of HEY1 or JAG1, and by chemical inactivation of Notch. The EMT phenotype, biphasic activation of Hey1, and delayed expression of Jag1 were induced by TGF-beta in wild-type, but not in Smad3-deficient, primary mouse kidney tubular epithelial cells. Our findings identify a new mechanism for functional integration of Jagged1/Notch signalling and coordinated activation of the Hey1 transcriptional repressor controlled by TGF-beta/Smad3, and demonstrate functional roles for Smad3, Hey1, and Jagged1/Notch in mediating TGF-beta-induced EMT.
Collapse
Affiliation(s)
- Jiri Zavadil
- Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Lukas Cermak
- Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, USA
- Institute of Molecular Genetics, Czech Academy of Sciences, Videnska, Prague, Czech Republic
| | - Noemi Soto-Nieves
- Department of Molecular Genetics, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Erwin P Böttinger
- Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, USA
- Department of Molecular Genetics, Albert Einstein College of Medicine, Bronx, NY, USA
- Department of Medicine, Mount Sinai Medical Center, One Gustave L. Levy Place, Box 1118, New York, NY 10029, USA. Tel.: +1 212 659 8242; Fax: +1 212 876 5844; E-mail:
| |
Collapse
|
16
|
Wang W, Wyckoff JB, Frohlich VC, Oleynikov Y, Hüttelmaier S, Zavadil J, Cermak L, Bottinger EP, Singer RH, White JG, Segall JE, Condeelis JS. Single cell behavior in metastatic primary mammary tumors correlated with gene expression patterns revealed by molecular profiling. Cancer Res 2002; 62:6278-88. [PMID: 12414658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2023]
Abstract
We have developed animal models of breast cancer that allow the direct examination of the behavior of individual green fluorescent protein-expressing carcinoma cells in live nonmetastatic and metastatic primary tumors in situ. We have combined this model with multiphoton microscopy to image differences in cell behavior within the primary tumor. Differences in cell behavior between nonmetastatic and metastatic cells in culture and within live primary tumors were correlated with results from cDNA microarray analyses to identify potentially important genetic determinants for breast cancer invasion and metastasis. Using multiphoton microscopy, we found five major differences in carcinoma cell behavior between the nonmetastatic and metastatic primary breast tumors involving extracellular matrix, cell motility, and chemotaxis. Behavioral differences were correlated with seven categories of molecules that were differentially expressed and related to these behaviors. We have found that extracellular matrix composition, actin nucleation factors, molecules involved in mechanical stability and survival, and cell polarity and chemotaxis showed large and consistent differences in gene expression. We conclude that aligning cell behavior in vivo with patterns of gene expression can lead to new insights into the microenvironment of carcinoma cells in the primary tumor and the molecular mechanisms behind cell behavior.
Collapse
Affiliation(s)
- Weigang Wang
- Department of Anatomy and Structural Biology, Albert Einstein College of Medicine, Bronx, New York 10461, USA
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
17
|
Kolias TJ, Avelar E, Bradsher K, Cermak L, Armstrong WF, Vannan MA. Power Doppler dual-frame triggering of myocardial contrast echocardiography: a quantitative video intensity analysis. Echocardiography 2001; 18:497-501. [PMID: 11567595 DOI: 10.1046/j.1540-8175.2001.00497.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
AIM The purpose of this study was to define the pattern of myocardial contrast observed during triggered dual-frame power Doppler imaging. METHODS AND RESULTS Ten patients with no previous history of myocardial infarction underwent a continuous intravenous infusion of Optison at 0.5 ml/min. Triggered, sequential dual-frame power Doppler imaging was performed from an apical four-chamber view using a prototype Acuson Sequoia imaging system. The average triggering interval was once every four cardiac cycles, and the average interval between sequential frames was 50 msec. Video intensity analysis was performed in five myocardial regions of interest, and the percent decrease in video intensity of the destruction frames in each region of interest was determined by subtracting the destruction frame video intensity from the fill frame video intensity. The percent decrease in video intensity varied significantly by myocardial location (P < 0.001), with greater destruction seen in the apical than in the basal regions. CONCLUSION This preliminary study demonstrates that power Doppler dual-frame triggering produces nonuniform decreases in video intensity, which likely represent nonuniform microbubble destruction. These results have important implications for the interpretation of myocardial perfusion patterns using this technique.
Collapse
Affiliation(s)
- T J Kolias
- Division of Cardiology, University of Michigan Medical Center, L3119 Women's, Ann Arbor, MI 48109-0273, USA
| | | | | | | | | | | |
Collapse
|
18
|
|
19
|
Bachna K, Sieggreen MA, Cermak L, Penk W, O'Connor M. MMPI/MMPI-2: comparisons of amnesic patients. Arch Clin Neuropsychol 1998; 13:535-42. [PMID: 14590637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/27/2023] Open
Abstract
The amnesic population provides a unique opportunity to examine the reliability of clinical tests because amnesics do not consciously recollect initial testing sessions. In this study, amnesic subjects were studied to examine the reliability between the Minnesota Multiphasic Personality Inventory (MMPI) and the MMPI-2. Findings indicated that there were no statistical differences between versions of the MMPI and further revealed that many of the scales were significantly correlated. Amnesic patients produced elevated scores on subscales two (depression) and eight (schizophrenia), not unlike various other groups of neurologically impaired individuals. This indicates that MMPI and MMPI-2 scores in these patient populations may reflect the medical and psychosocial effects of brain damage rather than premorbid personality dysfunction. A close evaluation of amnesics' performance, in conjunction with the critical items they endorsed, offers insight into the personality traits of the amnesic patient population. The relative stability of performance across personality tests administered over several weeks is relevant to the formation and stability of the amnesic's concept of self.
Collapse
Affiliation(s)
- K Bachna
- Boston University School of Medicine, USA.
| | | | | | | | | |
Collapse
|
20
|
Abstract
Ss were tested on consonant trigrams, presented vertically, in either the left, right, or center visual fields at 2 exposure durations—150 msec. and 1 sec. Data were analyzed for the effects of visual field, serial position in the trigram, and exposure duration on the identification and retention of the letters. Serial position and exposure duration significantly affected performance; visual field did not.
Collapse
|