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Truong MA, Cané-Gasull P, Lens SMA. Modeling specific aneuploidies: from karyotype manipulations to biological insights. Chromosome Res 2023; 31:25. [PMID: 37640903 PMCID: PMC10462580 DOI: 10.1007/s10577-023-09735-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 07/11/2023] [Accepted: 08/09/2023] [Indexed: 08/31/2023]
Abstract
An abnormal chromosome number, or aneuploidy, underlies developmental disorders and is a common feature of cancer, with different cancer types exhibiting distinct patterns of chromosomal gains and losses. To understand how specific aneuploidies emerge in certain tissues and how they contribute to disease development, various methods have been developed to alter the karyotype of mammalian cells and mice. In this review, we provide an overview of both classic and novel strategies for inducing or selecting specific chromosomal gains and losses in human and murine cell systems. We highlight how these customized aneuploidy models helped expanding our knowledge of the consequences of specific aneuploidies to (cancer) cell physiology.
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Affiliation(s)
- My Anh Truong
- Oncode Institute and Center for Molecular Medicine, University Medical Center Utrecht, Universiteitsweg 100, 3584, CG, Utrecht, The Netherlands
| | - Paula Cané-Gasull
- Oncode Institute and Center for Molecular Medicine, University Medical Center Utrecht, Universiteitsweg 100, 3584, CG, Utrecht, The Netherlands
| | - Susanne M A Lens
- Oncode Institute and Center for Molecular Medicine, University Medical Center Utrecht, Universiteitsweg 100, 3584, CG, Utrecht, The Netherlands.
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Shimizu R, Ohira T, Yagyu T, Yumioka T, Yamaguchi N, Iwamoto H, Morizane S, Hikita K, Honda M, Takenaka A, Kugoh H. Activation of PPARγ in bladder cancer via introduction of the long arm of human chromosome 9. Oncol Lett 2022; 23:92. [PMID: 35154423 PMCID: PMC8822417 DOI: 10.3892/ol.2022.13212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 01/05/2022] [Indexed: 11/07/2022] Open
Abstract
Bladder cancer is divided into two molecular subtypes, luminal and basal, which form papillary and nodular tumors, respectively, and are identifiable by gene expression profiling. Although loss of heterozygosity (LOH) of the long arm of human chromosome 9 (9q) has been observed in the early development of both types of bladder cancer, the functional significance of LOH remains to be clarified. The present study introduced human chromosome 9q into basal bladder cancer cell line, SCaBER, using microcell-mediated chromosome transfer to investigate the effect of LOH of 9q on molecular bladder cancer subtypes. These cells demonstrated decreased proliferation and migration capacity compared with parental and control cells. Conversely, transfer of human chromosome 4 did not change the cell phenotype. Expression level of peroxisome proliferator-activated receptor (PPAR)γ, a marker of luminal type, increased 3.0-4.4 fold in SCaBER cells altered with 9q compared with parental SCaBER cells. Furthermore, the expression levels of tumor suppressor PTEN, which regulates PPARγ, also increased in 9q-altered cells. These results suggested that human chromosome 9q may carry regulatory genes for PPARγ that are involved in the progression of neoplastic transformation of bladder cancer.
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Affiliation(s)
- Ryutaro Shimizu
- Division of Urology, Department of Surgery, Tottori University Faculty of Medicine, Yonago, Tottori 683‑8504, Japan
| | - Takahito Ohira
- Department of Molecular and Cellular Biology, Division of Genome and Cellular Function, Tottori University, Yonago, Tottori 683‑8503, Japan
| | - Takuki Yagyu
- Department of Molecular and Cellular Biology, Division of Genome and Cellular Function, Tottori University, Yonago, Tottori 683‑8503, Japan
| | - Tetsuya Yumioka
- Division of Urology, Department of Surgery, Tottori University Faculty of Medicine, Yonago, Tottori 683‑8504, Japan
| | - Noriya Yamaguchi
- Division of Urology, Department of Surgery, Tottori University Faculty of Medicine, Yonago, Tottori 683‑8504, Japan
| | - Hideto Iwamoto
- Division of Urology, Department of Surgery, Tottori University Faculty of Medicine, Yonago, Tottori 683‑8504, Japan
| | - Shuichi Morizane
- Division of Urology, Department of Surgery, Tottori University Faculty of Medicine, Yonago, Tottori 683‑8504, Japan
| | - Katsuya Hikita
- Division of Urology, Department of Surgery, Tottori University Faculty of Medicine, Yonago, Tottori 683‑8504, Japan
| | - Masashi Honda
- Division of Urology, Department of Surgery, Tottori University Faculty of Medicine, Yonago, Tottori 683‑8504, Japan
| | - Atsushi Takenaka
- Division of Urology, Department of Surgery, Tottori University Faculty of Medicine, Yonago, Tottori 683‑8504, Japan
| | - Hiroyuki Kugoh
- Department of Molecular and Cellular Biology, Division of Genome and Cellular Function, Tottori University, Yonago, Tottori 683‑8503, Japan
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Human chromosome 3p21.3 carries TERT transcriptional regulators in pancreatic cancer. Sci Rep 2021; 11:15355. [PMID: 34321527 PMCID: PMC8319171 DOI: 10.1038/s41598-021-94711-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 07/15/2021] [Indexed: 11/23/2022] Open
Abstract
Frequent loss of heterozygosity (LOH) on the short arm of human chromosome 3 (3p) region has been found in pancreatic cancer (PC), which suggests the likely presence of tumor suppressor genes in this region. However, the functional significance of LOH in this region in the development of PC has not been clearly defined. The human telomerase reverse transcriptase gene (hTERT) contributes to unlimited proliferative and tumorigenicity of malignant tumors. We previously demonstrated that hTERT expression was suppressed by the introduction of human chromosome 3 in several cancer cell lines. To examine the functional role of putative TERT suppressor genes on chromosome 3 in PC, we introduced an intact human chromosome 3 into the human PK9 and murine LTPA PC cell lines using microcell-mediated chromosome transfer. PK9 microcell hybrids with an introduced human chromosome 3 showed significant morphological changes and rapid growth arrest. Intriguingly, microcell hybrid clones of LTPA cells with an introduced human chromosome 3 (LTPA#3) showed suppression of mTert transcription, cell proliferation, and invasion compared with LTPA#4 cells containing human chromosome 4 and parental LTPA cells. Additionally, the promoter activity of mTert was downregulated in LTPA#3. Furthermore, we confirmed that TERT regulatory gene(s) are present in the 3p21.3 region by transfer of truncated chromosomes at arbitrary regions. These results provide important information on the functional significance of the LOH at 3p for development and progression of PC.
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Greco A, Goossens R, van Engelen B, van der Maarel SM. Consequences of epigenetic derepression in facioscapulohumeral muscular dystrophy. Clin Genet 2020; 97:799-814. [PMID: 32086799 PMCID: PMC7318180 DOI: 10.1111/cge.13726] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 02/08/2020] [Accepted: 02/11/2020] [Indexed: 02/06/2023]
Abstract
Facioscapulohumeral muscular dystrophy (FSHD), a common hereditary myopathy, is caused either by the contraction of the D4Z4 macrosatellite repeat at the distal end of chromosome 4q to a size of 1 to 10 repeat units (FSHD1) or by mutations in D4Z4 chromatin modifiers such as Structural Maintenance of Chromosomes Hinge Domain Containing 1 (FSHD2). These two genotypes share a phenotype characterized by progressive and often asymmetric muscle weakening and atrophy, and common epigenetic alterations of the D4Z4 repeat. All together, these epigenetic changes converge the two genetic forms into one disease and explain the derepression of the DUX4 gene, which is otherwise kept epigenetically silent in skeletal muscle. DUX4 is consistently transcriptionally upregulated in FSHD1 and FSHD2 skeletal muscle cells where it is believed to exercise a toxic effect. Here we provide a review of the recent literature describing the progress in understanding the complex genetic and epigenetic architecture of FSHD, with a focus on one of the consequences that these epigenetic changes inflict, the DUX4-induced immune deregulation cascade. Moreover, we review the latest therapeutic strategies, with particular attention to the potential of epigenetic correction of the FSHD locus.
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Affiliation(s)
- Anna Greco
- Department of Neurology, Donders Institute for Brain, Cognition and BehaviourRadboud University Medical CenterNijmegenThe Netherlands
- Department of Experimental Internal MedicineRadboud University Medical CenterNijmegenThe Netherlands
| | - Remko Goossens
- Department of Human GeneticsLeiden University Medical CenterLeidenThe Netherlands
| | - Baziel van Engelen
- Department of Neurology, Donders Institute for Brain, Cognition and BehaviourRadboud University Medical CenterNijmegenThe Netherlands
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Ohira T, Kojima H, Kuroda Y, Aoki S, Inaoka D, Osaki M, Wanibuchi H, Okada F, Oshimura M, Kugoh H. PITX1 protein interacts with ZCCHC10 to regulate hTERT mRNA transcription. PLoS One 2019; 14:e0217605. [PMID: 31404068 PMCID: PMC6690549 DOI: 10.1371/journal.pone.0217605] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 07/29/2019] [Indexed: 01/21/2023] Open
Abstract
Telomerase is a ribonucleoprotein ribonucleic enzyme that is essential for cellular immortalization via elongation of telomere repeat sequences at the end of chromosomes. Human telomerase reverse transcriptase (hTERT), the catalytic subunit of telomerase holoenzyme, is a key regulator of telomerase activity. Telomerase activity, which has been detected in the majority of cancer cells, is accompanied by hTERT expression, suggesting that this enzyme activity contributes to an unlimited replication potential of cancer cells via regulation of telomere length. Thus, hTERT is an attractive target for cancer-specific treatments. We previously reported that pared-like homeodomain 1 (PITX1) is a negative regulator of hTERT through direct binding to the hTERT promoter. However, the mechanism by which the function of PITX1 contributes to transcriptional silencing of the hTERT gene remains to be clarified. Here, we show that PITX1 and zinc finger CCHC-type containing 10 (ZCCHC10) proteins cooperate to facilitate the transcriptional regulation of the hTERT gene by functional studies via FLAG pull-down assay. Co-expression of PITX1 and ZCCHC10 resulted in inhibition of hTERT transcription, in melanoma cell lines, whereas mutate-deletion of homeodomain in PITX1 that interact with ZCCHC10 did not induce similar phenotypes. In addition, ZCCHC10 expression levels showed marked decrease in the majority of melanoma cell lines and tissues. Taken together, these results suggest that ZCCHC10-PITX1 complex is the functional unit that suppresses hTERT transcription, and may play a crucial role as a novel tumor suppressor complex.
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Affiliation(s)
- Takahito Ohira
- Department of Biomedical Science, Institute of Regenerative Medicine and Biofunction, Graduate School of Medical Science, Tottori University, Yonago, Tottori, Japan
- Chromosome Engineering Research Center, Tottori University, Yonago, Tottori, Japan
| | - Hirotada Kojima
- Department of Immunology, Graduate School of Medicine, Osaka City University, Asahi-machi, Abeno-ku, Osaka, Japan
| | - Yuko Kuroda
- Department of Biomedical Science, Institute of Regenerative Medicine and Biofunction, Graduate School of Medical Science, Tottori University, Yonago, Tottori, Japan
| | - Sayaka Aoki
- Department of Biomedical Science, Institute of Regenerative Medicine and Biofunction, Graduate School of Medical Science, Tottori University, Yonago, Tottori, Japan
| | - Daigo Inaoka
- Department of Biomedical Science, Institute of Regenerative Medicine and Biofunction, Graduate School of Medical Science, Tottori University, Yonago, Tottori, Japan
| | - Mitsuhiko Osaki
- Chromosome Engineering Research Center, Tottori University, Yonago, Tottori, Japan
- Division of Pathological Biochemistry, School of Life Science, Faculty of Medicine, Tottori University, Yonago, Tottori, Japan
| | - Hideki Wanibuchi
- Department of Molecular Pathology, Graduate School of Medicine, Osaka City University, Asahi-machi, Abeno-ku, Osaka, Japan
| | - Futoshi Okada
- Chromosome Engineering Research Center, Tottori University, Yonago, Tottori, Japan
- Division of Pathological Biochemistry, School of Life Science, Faculty of Medicine, Tottori University, Yonago, Tottori, Japan
| | - Mitsuo Oshimura
- Chromosome Engineering Research Center, Tottori University, Yonago, Tottori, Japan
| | - Hiroyuki Kugoh
- Department of Biomedical Science, Institute of Regenerative Medicine and Biofunction, Graduate School of Medical Science, Tottori University, Yonago, Tottori, Japan
- Chromosome Engineering Research Center, Tottori University, Yonago, Tottori, Japan
- * E-mail:
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