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Kim KM, Mura-Meszaros A, Tollot M, Krishnan MS, Gründl M, Neubert L, Groth M, Rodriguez-Fraticelli A, Svendsen AF, Campaner S, Andreas N, Kamradt T, Hoffmann S, Camargo FD, Heidel FH, Bystrykh LV, de Haan G, von Eyss B. Taz protects hematopoietic stem cells from an aging-dependent decrease in PU.1 activity. Nat Commun 2022; 13:5187. [PMID: 36057685 PMCID: PMC9440927 DOI: 10.1038/s41467-022-32970-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [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: 01/20/2022] [Accepted: 08/24/2022] [Indexed: 11/09/2022] Open
Abstract
Specific functions of the immune system are essential to protect us from infections caused by pathogens such as viruses and bacteria. However, as we age, the immune system shows a functional decline that can be attributed in large part to age-associated defects in hematopoietic stem cells (HSCs)—the cells at the apex of the immune cell hierarchy. Here, we find that the Hippo pathway coactivator TAZ is potently induced in old HSCs and protects these cells from functional decline. We identify Clca3a1 as a TAZ-induced gene that allows us to trace TAZ activity in vivo. Using CLCA3A1 as a marker, we can isolate “young-like” HSCs from old mice. Mechanistically, Taz acts as coactivator of PU.1 and to some extent counteracts the gradual loss of PU.1 expression during HSC aging. Our work thus uncovers an essential role for Taz in a previously undescribed fail-safe mechanism in aging HSCs. Immune system function declines with age, a consequence of defects in hematopoietic stem cells (HSCs). Here the authors show that TAZ buffers age-related loss of PU.1 activity to maintain HSC functionality and identify the surface protein Clca3a1 as a marker of “young-like” HSCs, even in old mice.
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Affiliation(s)
- Kyung Mok Kim
- Transcriptional Control of Tissue Homeostasis Lab, Leibniz Institute on Aging, Fritz Lipmann Institute e.V., Beutenbergstr. 11, 07745, Jena, Germany
| | - Anna Mura-Meszaros
- Transcriptional Control of Tissue Homeostasis Lab, Leibniz Institute on Aging, Fritz Lipmann Institute e.V., Beutenbergstr. 11, 07745, Jena, Germany
| | - Marie Tollot
- Transcriptional Control of Tissue Homeostasis Lab, Leibniz Institute on Aging, Fritz Lipmann Institute e.V., Beutenbergstr. 11, 07745, Jena, Germany
| | - Murali Shyam Krishnan
- Transcriptional Control of Tissue Homeostasis Lab, Leibniz Institute on Aging, Fritz Lipmann Institute e.V., Beutenbergstr. 11, 07745, Jena, Germany
| | - Marco Gründl
- Transcriptional Control of Tissue Homeostasis Lab, Leibniz Institute on Aging, Fritz Lipmann Institute e.V., Beutenbergstr. 11, 07745, Jena, Germany
| | - Laura Neubert
- Transcriptional Control of Tissue Homeostasis Lab, Leibniz Institute on Aging, Fritz Lipmann Institute e.V., Beutenbergstr. 11, 07745, Jena, Germany
| | - Marco Groth
- Leibniz Institute on Aging, Fritz Lipmann Institute e.V., Beutenbergstr. 11, 07745, Jena, Germany
| | - Alejo Rodriguez-Fraticelli
- Institute for Research in Biomedicine (IRB Barcelona), Barcelona Institute of Science and Technology (BIST), Baldiri Reixac 10, 08028, Barcelona, Spain.,Stem Cell Program, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA.,Department of Stem Cell and Regenerative Biology, Harvard University, 7 Divinity Avenue, Cambridge, MA, 02138, USA
| | - Arthur Flohr Svendsen
- Laboratory of Ageing Biology and Stem Cells, European Research Institute for the Biology of Ageing (ERIBA), University Medical Center Groningen (UMCG), University of Groningen, Antonius Deusinglaan 1, 9700 AV, Groningen, The Netherlands
| | - Stefano Campaner
- Center for Genomic Science of IIT@SEMM, Fondazione Istituto Italiano di Tecnologia (IIT), Via Adamello 16, 20139, Milan, Italy
| | - Nico Andreas
- Institute of Immunology, Jena University Hospital, Am Leutragraben 3, 07743, Jena, Germany
| | - Thomas Kamradt
- Institute of Immunology, Jena University Hospital, Am Leutragraben 3, 07743, Jena, Germany
| | - Steve Hoffmann
- Leibniz Institute on Aging, Fritz Lipmann Institute e.V., Beutenbergstr. 11, 07745, Jena, Germany
| | - Fernando D Camargo
- Institute for Research in Biomedicine (IRB Barcelona), Barcelona Institute of Science and Technology (BIST), Baldiri Reixac 10, 08028, Barcelona, Spain
| | - Florian H Heidel
- Leibniz Institute on Aging, Fritz Lipmann Institute e.V., Beutenbergstr. 11, 07745, Jena, Germany.,Internal Medicine II, Hematology and Oncology, Jena University Hospital, Am Klinikum 1, 07747, Jena, Germany.,Innere Medizin C, Universitätsmedizin Greifswald, Sauerbruchstrasse, 17475, Greifswald, Germany
| | - Leonid V Bystrykh
- Laboratory of Ageing Biology and Stem Cells, European Research Institute for the Biology of Ageing (ERIBA), University Medical Center Groningen (UMCG), University of Groningen, Antonius Deusinglaan 1, 9700 AV, Groningen, The Netherlands
| | - Gerald de Haan
- Laboratory of Ageing Biology and Stem Cells, European Research Institute for the Biology of Ageing (ERIBA), University Medical Center Groningen (UMCG), University of Groningen, Antonius Deusinglaan 1, 9700 AV, Groningen, The Netherlands.,Sanquin Research, and Landsteiner Laboratory, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Björn von Eyss
- Transcriptional Control of Tissue Homeostasis Lab, Leibniz Institute on Aging, Fritz Lipmann Institute e.V., Beutenbergstr. 11, 07745, Jena, Germany.
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Leone M, Cazorla-Vázquez S, Ferrazzi F, Wiederstein JL, Gründl M, Weinstock G, Vergarajauregui S, Eckstein M, Krüger M, Gaubatz S, Engel FB. IQGAP3, a YAP Target, Is Required for Proper Cell-Cycle Progression and Genome Stability. Mol Cancer Res 2021; 19:1712-1726. [PMID: 34183451 DOI: 10.1158/1541-7786.mcr-20-0639] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 04/08/2021] [Accepted: 06/17/2021] [Indexed: 11/16/2022]
Abstract
Controlling cell proliferation is critical for organism development, tissue homeostasis, disease, and regeneration. IQGAP3 has been shown to be required for proper cell proliferation and migration, and is associated to a number of cancers. Moreover, its expression is inversely correlated with the overall survival rate in the majority of cancers. Here, we show that IQGAP3 expression is elevated in cervical cancer and that in these cancers IQGAP3 high expression is correlated with an increased lethality. Furthermore, we demonstrate that IQGAP3 is a target of YAP, a regulator of cell cycle gene expression. IQGAP3 knockdown resulted in an increased percentage of HeLa cells in S phase, delayed progression through mitosis, and caused multipolar spindle formation and consequentially aneuploidy. Protein-protein interaction studies revealed that IQGAP3 interacts with MMS19, which is known in Drosophila to permit, by competitive binding to Xpd, Cdk7 to be fully active as a Cdk-activating kinase (CAK). Notably, IQGAP3 knockdown caused decreased MMS19 protein levels and XPD knockdown partially rescued the reduced proliferation rate upon IQGAP3 knockdown. This suggests that IQGAP3 modulates the cell cycle via the MMS19/XPD/CAK axis. Thus, in addition to governing proliferation and migration, IQGAP3 is a critical regulator of mitotic progression and genome stability. IMPLICATIONS: Our data indicate that, while IQGAP3 inhibition might be initially effective in decreasing cancer cell proliferation, this approach harbors the risk to promote aneuploidy and, therefore, the formation of more aggressive cancers.
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Affiliation(s)
- Marina Leone
- Experimental Renal and Cardiovascular Research, Department of Nephropathology, Institute of Pathology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany.
| | - Salvador Cazorla-Vázquez
- Experimental Renal and Cardiovascular Research, Department of Nephropathology, Institute of Pathology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Fulvia Ferrazzi
- Department of Nephropathology, Institute of Pathology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Institute of Pathology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Muscle Research Center Erlangen (MURCE), Erlangen, Germany
| | - Janica L Wiederstein
- Institute for Genetics, Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany
| | - Marco Gründl
- Theodor Boveri Institute and Comprehensive Cancer Center Mainfranken, Biocenter, University of Wuerzburg, Wuerzburg, Germany
| | - Grit Weinstock
- Theodor Boveri Institute and Comprehensive Cancer Center Mainfranken, Biocenter, University of Wuerzburg, Wuerzburg, Germany
| | - Silvia Vergarajauregui
- Experimental Renal and Cardiovascular Research, Department of Nephropathology, Institute of Pathology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Markus Eckstein
- Institute of Pathology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Marcus Krüger
- Institute for Genetics, Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany
| | - Stefan Gaubatz
- Theodor Boveri Institute and Comprehensive Cancer Center Mainfranken, Biocenter, University of Wuerzburg, Wuerzburg, Germany
| | - Felix B Engel
- Experimental Renal and Cardiovascular Research, Department of Nephropathology, Institute of Pathology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany. .,Muscle Research Center Erlangen (MURCE), Erlangen, Germany.,Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
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Pattschull G, Walz S, Gründl M, Schwab M, Rühl E, Baluapuri A, Cindric-Vranesic A, Kneitz S, Wolf E, Ade CP, Rosenwald A, von Eyss B, Gaubatz S. The Myb-MuvB Complex Is Required for YAP-Dependent Transcription of Mitotic Genes. Cell Rep 2020; 27:3533-3546.e7. [PMID: 31216474 DOI: 10.1016/j.celrep.2019.05.071] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 04/18/2019] [Accepted: 05/17/2019] [Indexed: 02/06/2023] Open
Abstract
YAP and TAZ, downstream effectors of the Hippo pathway, are important regulators of proliferation. Here, we show that the ability of YAP to activate mitotic gene expression is dependent on the Myb-MuvB (MMB) complex, a master regulator of genes expressed in the G2/M phase of the cell cycle. By carrying out genome-wide expression and binding analyses, we found that YAP promotes binding of the MMB subunit B-MYB to the promoters of mitotic target genes. YAP binds to B-MYB and stimulates B-MYB chromatin association through distal enhancer elements that interact with MMB-regulated promoters through chromatin looping. The cooperation between YAP and B-MYB is critical for YAP-mediated entry into mitosis. Furthermore, the expression of genes coactivated by YAP and B-MYB is associated with poor survival of cancer patients. Our findings provide a molecular mechanism by which YAP and MMB regulate mitotic gene expression and suggest a link between two cancer-relevant signaling pathways.
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Affiliation(s)
- Grit Pattschull
- Theodor Boveri Institute and Comprehensive Cancer Center Mainfranken, Biocenter, University of Wuerzburg, Wuerzburg 97074, Germany
| | - Susanne Walz
- Comprehensive Cancer Center Mainfranken, Core Unit Bioinformatics, Biocenter, University of Wuerzburg, Wuerzburg 97074, Germany
| | - Marco Gründl
- Theodor Boveri Institute and Comprehensive Cancer Center Mainfranken, Biocenter, University of Wuerzburg, Wuerzburg 97074, Germany
| | - Melissa Schwab
- Theodor Boveri Institute and Comprehensive Cancer Center Mainfranken, Biocenter, University of Wuerzburg, Wuerzburg 97074, Germany
| | - Eva Rühl
- Theodor Boveri Institute and Comprehensive Cancer Center Mainfranken, Biocenter, University of Wuerzburg, Wuerzburg 97074, Germany
| | - Apoorva Baluapuri
- Cancer Systems Biology Group, Biochemistry and Molecular Biology, University of Wuerzburg, Wuerzburg 97074, Germany
| | | | - Susanne Kneitz
- Theodor Boveri Institute and Comprehensive Cancer Center Mainfranken, Biocenter, University of Wuerzburg, Wuerzburg 97074, Germany
| | - Elmar Wolf
- Cancer Systems Biology Group, Biochemistry and Molecular Biology, University of Wuerzburg, Wuerzburg 97074, Germany
| | - Carsten P Ade
- Theodor Boveri Institute and Comprehensive Cancer Center Mainfranken, Biocenter, University of Wuerzburg, Wuerzburg 97074, Germany
| | - Andreas Rosenwald
- Institute of Pathology and Comprehensive Cancer Center Mainfranken, University of Wuerzburg, Wuerzburg 97080, Germany
| | - Björn von Eyss
- Leibniz Institute on Aging, Fritz Lipmann Institute e.V., Jena 07745, Germany
| | - Stefan Gaubatz
- Theodor Boveri Institute and Comprehensive Cancer Center Mainfranken, Biocenter, University of Wuerzburg, Wuerzburg 97074, Germany.
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Gründl M, Walz S, Hauf L, Schwab M, Werner KM, Spahr S, Schulte C, Maric HM, Ade CP, Gaubatz S. Interaction of YAP with the Myb-MuvB (MMB) complex defines a transcriptional program to promote the proliferation of cardiomyocytes. PLoS Genet 2020; 16:e1008818. [PMID: 32469866 PMCID: PMC7286521 DOI: 10.1371/journal.pgen.1008818] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 06/10/2020] [Accepted: 05/01/2020] [Indexed: 01/14/2023] Open
Abstract
The Hippo signalling pathway and its central effector YAP regulate proliferation of cardiomyocytes and growth of the heart. Using genetic models in mice we show that the increased proliferation of embryonal and postnatal cardiomyocytes due to loss of the Hippo-signaling component SAV1 depends on the Myb-MuvB (MMB) complex. Similarly, proliferation of postnatal cardiomyocytes induced by constitutive active YAP requires MMB. Genome studies revealed that YAP and MMB regulate an overlapping set of cell cycle genes in cardiomyocytes. Protein-protein interaction studies in cell lines and with recombinant proteins showed that YAP binds directly to B-MYB, a subunit of MMB, in a manner dependent on the YAP WW domains and a PPXY motif in B-MYB. Disruption of the interaction by overexpression of the YAP binding domain of B-MYB strongly inhibits the proliferation of cardiomyocytes. Our results point to MMB as a critical downstream effector of YAP in the control of cardiomyocyte proliferation. YAP, the major downstream transducer of the Hippo pathway, is a potent inducer of proliferation. Here we show that the Myb-MuvB complex (MMB) mediates cardiomyocyte proliferation by YAP. We find that YAP and MMB regulate an overlapping set of pro-proliferative genes which involves binding of MMB to the promoters of these genes. We also identified a direct interaction between the B-MYB subunit of MMB and YAP. Based on the binding studies, we created a tool called MY-COMP that interferes with the association YAP to B-MYB and strongly inhibits proliferation of cardiomyocytes. Together, our data suggests that the YAP-MMB interaction is essential for division of cardiomyocytes, underscoring the functional relevance of the crosstalk between these two pathways for proper heart development.
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Affiliation(s)
- Marco Gründl
- Theodor Boveri Institute and Comprehensive Cancer Center Mainfranken, Biocenter University of Wuerzburg, Wuerzburg, Germany
| | - Susanne Walz
- Comprehensive Cancer Center Mainfranken, Core Unit Bioinformatics, Biocenter, University of Wuerzburg, Wuerzburg, Germany
| | - Laura Hauf
- Theodor Boveri Institute and Comprehensive Cancer Center Mainfranken, Biocenter University of Wuerzburg, Wuerzburg, Germany
| | - Melissa Schwab
- Theodor Boveri Institute and Comprehensive Cancer Center Mainfranken, Biocenter University of Wuerzburg, Wuerzburg, Germany
| | - Kerstin Marcela Werner
- Theodor Boveri Institute and Comprehensive Cancer Center Mainfranken, Biocenter University of Wuerzburg, Wuerzburg, Germany
| | - Susanne Spahr
- Theodor Boveri Institute and Comprehensive Cancer Center Mainfranken, Biocenter University of Wuerzburg, Wuerzburg, Germany
| | - Clemens Schulte
- Rudolf Virchow Center for Experimental Biomedicine, University of Würzburg, Wuerzburg, Germany
| | - Hans Michael Maric
- Rudolf Virchow Center for Experimental Biomedicine, University of Würzburg, Wuerzburg, Germany
| | - Carsten P. Ade
- Theodor Boveri Institute and Comprehensive Cancer Center Mainfranken, Biocenter University of Wuerzburg, Wuerzburg, Germany
| | - Stefan Gaubatz
- Theodor Boveri Institute and Comprehensive Cancer Center Mainfranken, Biocenter University of Wuerzburg, Wuerzburg, Germany
- * E-mail:
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Affiliation(s)
- Marco Gründl
- a Theodor Boveri Institute, Biocenter, Department of Physiological Chemistry and Comprehensive Cancer Center Mainfranken , University of Wuerzburg , Wuerzburg , Bavaria , Germany
| | - Felix B Engel
- b Experimental Renal and Cardiovascular Research, Institute of Pathology, Department of Nephropathology , Friedrich-Alexander-Universität Erlangen-Nürnberg , Erlangen , Bavaria , Germany
| | - Stefan Gaubatz
- a Theodor Boveri Institute, Biocenter, Department of Physiological Chemistry and Comprehensive Cancer Center Mainfranken , University of Wuerzburg , Wuerzburg , Bavaria , Germany
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Gründl M, Klein S, Horczakiwskyj R, Feser D, Jung M, Eisenmann-Klein M, Prantl L. The "jaguar's eye" as a new beauty trend? Age-related effects in judging the attractiveness of the oblique eye axis. Aesthetic Plast Surg 2008; 32:915-9. [PMID: 18506510 DOI: 10.1007/s00266-008-9180-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2007] [Accepted: 07/19/2007] [Indexed: 10/22/2022]
Abstract
BACKGROUND The eye area plays an important role in the assessment of a person. Although plastic surgery in this area is quite common, only a few studies have evaluated the features that create an attractive eye. This study aimed to determine whether a preference exists for a certain eye axis. METHODS The stimulus material comprised portrait images of seven women. Two versions of each face were generated that differed only in the position of the eye axis (normal vs rotated). The eye axis was rotated by raising the lateral canthus of the eye about 5 degrees . A total of 250 experimental subjects ranging in age from 15 to 84 years stated their preferential position of the eye axis (horizontal vs oblique). RESULTS Clear evidence showed that age has an impact on the type of eye axis preferred. Young subjects (age, B 19 years) regarded the oblique type of eye axis as more attractive, whereas older subjects (age, C50 years) preferred the eyes more horizontal (p \ 0.001), independently of the interviewees' gender. CONCLUSION Because young people judge eye attractiveness differently than older people and because beauty trends are normally determined by young people, a future ideal of beauty could be characterized by eyes with a gently oblique eye axis.
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