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Mohanraj L, Wolf H, Silvey S, Liu J, Toor A, Swift-Scanlan T. DNA Methylation Changes in Autologous Hematopoietic Stem Cell Transplant Patients. Biol Res Nurs 2023; 25:310-325. [PMID: 36321693 PMCID: PMC10236442 DOI: 10.1177/10998004221135628] [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] [Indexed: 11/07/2022]
Abstract
BACKGROUND Blood cancers may be potentially cured with hematopoietic stem cell transplantation (HCT); however, standard pre-assessments for transplant eligibility do not capture all contributing factors for transplant outcomes. Epigenetic biomarkers predict outcomes in various diseases. This pilot study aims to explore epigenetic changes (epigenetic age and differentially methylated genes) in patients before and after autologous HCT, that can serve as potential biomarkers to better predict HCT outcomes. METHODS This study used a prospective longitudinal study design to compare genome wide DNA methylation changes in 36 autologous HCT eligible patients recruited from the Cellular Immunotherapies and Transplant clinic at a designated National Cancer Center. RESULTS Genome-wide DNA methylation, measured by the Illumina Infinium Human Methylation 850K BeadChip, showed a significant difference in DNA methylation patterns post-HCT compared to pre-HCT. Compared to baseline levels of DNA methylation pre-HCT, 3358 CpG sites were hypo-methylated and 3687 were hyper-methylated. Identified differentially methylated positions overlapped with genes involved in hematopoiesis, blood cancers, inflammation and immune responses. Enrichment analyses showed significant alterations in biological processes such as immune response and cell structure organization, however no significant pathways were noted. Though participants had an advanced epigenetic age compared to chronologic age before and after HCT, both epigenetic age and accelerated age decreased post-HCT. CONCLUSION Epigenetic changes, both in epigenetic age and differentially methylated genes were observed in autologous HCT recipients, and should be explored as biomarkers to predict transplant outcomes after autologous HCT in larger, longitudinal studies.
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Affiliation(s)
- Lathika Mohanraj
- Department of Adult Health and Nursing
Systems, VCU School of Nursing, Richmond, VA, USA
| | - Hope Wolf
- Department of Human and Molecular Genetics, VCU School of Medicine, Richmond, VA, USA
| | - Scott Silvey
- Department of Biostatistics, VCU School of Medicine, Richmond, VA, USA
| | - Jinze Liu
- Department of Biostatistics, VCU School of Medicine, Richmond, VA, USA
| | - Amir Toor
- Department of Internal Medicine, VCU School of Medicine, Richmond, VA, USA
| | - Theresa Swift-Scanlan
- Endowed Professor and Director,
Biobehavioral Research Lab, VCU School of Nursing, Richmond, VA, USA
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2
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Yi SJ, Jang YJ, Kim HJ, Lee K, Lee H, Kim Y, Kim J, Hwang SY, Song JS, Okada H, Park JI, Kang K, Kim K. The KDM4B-CCAR1-MED1 axis is a critical regulator of osteoclast differentiation and bone homeostasis. Bone Res 2021; 9:27. [PMID: 34031372 PMCID: PMC8144413 DOI: 10.1038/s41413-021-00145-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 01/10/2021] [Accepted: 01/22/2021] [Indexed: 12/12/2022] Open
Abstract
Bone undergoes a constant and continuous remodeling process that is tightly regulated by the coordinated and sequential actions of bone-resorbing osteoclasts and bone-forming osteoblasts. Recent studies have shown that histone demethylases are implicated in osteoblastogenesis; however, little is known about the role of histone demethylases in osteoclast formation. Here, we identified KDM4B as an epigenetic regulator of osteoclast differentiation. Knockdown of KDM4B significantly blocked the formation of tartrate-resistant acid phosphatase-positive multinucleated cells. Mice with myeloid-specific conditional knockout of KDM4B showed an osteopetrotic phenotype due to osteoclast deficiency. Biochemical analysis revealed that KDM4B physically and functionally associates with CCAR1 and MED1 in a complex. Using genome-wide chromatin immunoprecipitation (ChIP)-sequencing, we revealed that the KDM4B–CCAR1–MED1 complex is localized to the promoters of several osteoclast-related genes upon receptor activator of NF-κB ligand stimulation. We demonstrated that the KDM4B–CCAR1–MED1 signaling axis induces changes in chromatin structure (euchromatinization) near the promoters of osteoclast-related genes through H3K9 demethylation, leading to NF-κB p65 recruitment via a direct interaction between KDM4B and p65. Finally, small molecule inhibition of KDM4B activity impeded bone loss in an ovariectomized mouse model. Taken together, our findings establish KDM4B as a critical regulator of osteoclastogenesis, providing a potential therapeutic target for osteoporosis.
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Affiliation(s)
- Sun-Ju Yi
- Department of Biological Sciences and Biotechnology, Chungbuk National University, Cheongju, Chungbuk, Republic of Korea
| | - You-Jee Jang
- Korea Basic Science Institute, Gwangju Center at Chonnam National University, Gwangju, Republic of Korea
| | - Hye-Jung Kim
- New Drug Development Center, KBIO Osong Medical Innovation Foundation, Cheongju, Chungbuk, Republic of Korea
| | - Kyubin Lee
- Department of Biological Sciences and Biotechnology, Chungbuk National University, Cheongju, Chungbuk, Republic of Korea
| | - Hyerim Lee
- Department of Biological Sciences and Biotechnology, Chungbuk National University, Cheongju, Chungbuk, Republic of Korea
| | - Yeojin Kim
- Department of Biological Sciences and Biotechnology, Chungbuk National University, Cheongju, Chungbuk, Republic of Korea
| | - Junil Kim
- Department of Biological Sciences and Biotechnology, Chungbuk National University, Cheongju, Chungbuk, Republic of Korea
| | - Seon Young Hwang
- Department of Biological Sciences and Biotechnology, Chungbuk National University, Cheongju, Chungbuk, Republic of Korea
| | - Jin Sook Song
- Data Convergence Drug Research Center, Therapeutics & Biotechnology Division, Korea Research Institute of Chemical Technology, Daejeon, Republic of Korea
| | - Hitoshi Okada
- Department of Biochemistry, Kindai University Faculty of Medicine, Osakasayama, Osaka, Japan
| | - Jae-Il Park
- Korea Basic Science Institute, Gwangju Center at Chonnam National University, Gwangju, Republic of Korea
| | - Kyuho Kang
- Department of Biological Sciences and Biotechnology, Chungbuk National University, Cheongju, Chungbuk, Republic of Korea
| | - Kyunghwan Kim
- Department of Biological Sciences and Biotechnology, Chungbuk National University, Cheongju, Chungbuk, Republic of Korea.
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3
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Wang Z, Wang P, Li Y, Peng H, Zhu Y, Mohandas N, Liu J. Interplay between cofactors and transcription factors in hematopoiesis and hematological malignancies. Signal Transduct Target Ther 2021; 6:24. [PMID: 33468999 PMCID: PMC7815747 DOI: 10.1038/s41392-020-00422-1] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 10/16/2020] [Accepted: 10/26/2020] [Indexed: 02/07/2023] Open
Abstract
Hematopoiesis requires finely tuned regulation of gene expression at each stage of development. The regulation of gene transcription involves not only individual transcription factors (TFs) but also transcription complexes (TCs) composed of transcription factor(s) and multisubunit cofactors. In their normal compositions, TCs orchestrate lineage-specific patterns of gene expression and ensure the production of the correct proportions of individual cell lineages during hematopoiesis. The integration of posttranslational and conformational modifications in the chromatin landscape, nucleosomes, histones and interacting components via the cofactor–TF interplay is critical to optimal TF activity. Mutations or translocations of cofactor genes are expected to alter cofactor–TF interactions, which may be causative for the pathogenesis of various hematologic disorders. Blocking TF oncogenic activity in hematologic disorders through targeting cofactors in aberrant complexes has been an exciting therapeutic strategy. In this review, we summarize the current knowledge regarding the models and functions of cofactor–TF interplay in physiological hematopoiesis and highlight their implications in the etiology of hematological malignancies. This review presents a deep insight into the physiological and pathological implications of transcription machinery in the blood system.
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Affiliation(s)
- Zi Wang
- Department of Hematology, Institute of Molecular Hematology, The Second Xiangya Hospital, Central South University, 410011, ChangSha, Hunan, China. .,Molecular Biology Research Center and Hunan Province Key Laboratory of Basic and Applied Hematology, School of Life Sciences, Central South University, 410078, Changsha, Hunan, China.
| | - Pan Wang
- Molecular Biology Research Center and Hunan Province Key Laboratory of Basic and Applied Hematology, School of Life Sciences, Central South University, 410078, Changsha, Hunan, China
| | - Yanan Li
- Molecular Biology Research Center and Hunan Province Key Laboratory of Basic and Applied Hematology, School of Life Sciences, Central South University, 410078, Changsha, Hunan, China
| | - Hongling Peng
- Department of Hematology, Institute of Molecular Hematology, The Second Xiangya Hospital, Central South University, 410011, ChangSha, Hunan, China
| | - Yu Zhu
- Molecular Biology Research Center and Hunan Province Key Laboratory of Basic and Applied Hematology, School of Life Sciences, Central South University, 410078, Changsha, Hunan, China
| | - Narla Mohandas
- Red Cell Physiology Laboratory, New York Blood Center, New York, NY, USA
| | - Jing Liu
- Molecular Biology Research Center and Hunan Province Key Laboratory of Basic and Applied Hematology, School of Life Sciences, Central South University, 410078, Changsha, Hunan, China.
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4
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Kuronuma K, Yokoi A, Fukuoka T, Miyata M, Maekawa A, Tanaka S, Matsubara L, Goto C, Matsuo M, Han HW, Tsuruta M, Murata H, Okamoto H, Hasegawa N, Asano S, Ito M. Matrix Gla protein maintains normal and malignant hematopoietic progenitor cells by interacting with bone morphogenetic protein-4. Heliyon 2020; 6:e03743. [PMID: 32322728 PMCID: PMC7160454 DOI: 10.1016/j.heliyon.2020.e03743] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Revised: 03/08/2020] [Accepted: 04/01/2020] [Indexed: 11/18/2022] Open
Abstract
Matrix Gla protein (MGP), a modulator of the BMP-SMAD signals, inhibits arterial calcification in a Glu γ-carboxylation dependent manner but the role of MGP highly expressed in a subset of bone marrow (BM) mesenchymal stem/stromal cells is unknown. Here we provide evidence that MGP might be a niche factor for both normal and malignant myelopoiesis. When mouse BM hematopoietic cells were cocultured with mitomycin C-treated BM stromal cells in the presence of anti-MGP antibody, growth of hematopoietic cells was reduced by half, and maintenance of long-term culture-initiating cells (LTC-ICs) was profoundly attenuated. Antibody-mediated blockage of MGP also inhibited growth (by a fifth) and cobblestone formation (by half) of stroma-dependent MB-1 myeloblastoma cells. MGP was undetectable in normal hematopoietic cells but was expressed in various mesenchymal cells and was aberrantly high in MB-1 cells. MGP and bone morphogenetic protein (BMP)-4 were co-induced in stromal cells cocultured with both normal hematopoietic cells and MB-1 myeloblastoma cells in an oscillating several days-periodic manner. BMP-2 was also induced in stromal cells cocultured with normal hematopoietic cells but was barely expressed when cocultured with MB-1 cells. GST-pulldown and luciferase reporter assays showed that uncarboxylated MGP interacted with BMP-4 and that anti-MGP antibody abolished this interaction. LDN-193189, a selective BMP signaling inhibitor, inhibited growth and cobblestone formation of MB-1 cells. The addition of warfarin, a selective inhibitor of vitamin K-dependent Glu γ-carboxylation, did not affect MB-1 cell growth, suggesting that uncarboxylated MGP has a biological effect in niche. These results indicate that MGP may maintain normal and malignant hematopoietic progenitor cells, possibly by modulating BMP signals independently of Glu γ-carboxylation. Aberrant MGP by leukemic cells and selective induction of BMP-4 relative to BMP-2 in stromal cells might specify malignant niche.
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Affiliation(s)
- Kana Kuronuma
- Laboratory of Hematology, Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma-ku, Kobe 654-0142, Japan
| | - Aya Yokoi
- Laboratory of Hematology, Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma-ku, Kobe 654-0142, Japan
| | - Tomoya Fukuoka
- Laboratory of Hematology, Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma-ku, Kobe 654-0142, Japan
| | - Muneaki Miyata
- Division of Pathogenetic Signaling, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, CREST, Japan Science and Technology Agency, 1-5-6 Minatojima-minamimachi, Chuo-ku, Kobe, 650-0047, Japan
| | - Akio Maekawa
- Laboratory of Hematology, Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma-ku, Kobe 654-0142, Japan
| | - Satowa Tanaka
- Laboratory of Hematology, Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma-ku, Kobe 654-0142, Japan
| | - Leo Matsubara
- Laboratory of Hematology, Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma-ku, Kobe 654-0142, Japan
| | - Chie Goto
- Laboratory of Hematology, Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma-ku, Kobe 654-0142, Japan
| | - Miki Matsuo
- Laboratory of Hematology, Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma-ku, Kobe 654-0142, Japan
| | - Hao-Wei Han
- Research Organization for Nano & Life Innovation, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 159-8555, Japan
| | - Mai Tsuruta
- Laboratory of Hematology, Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma-ku, Kobe 654-0142, Japan
| | - Haruka Murata
- Laboratory of Hematology, Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma-ku, Kobe 654-0142, Japan
| | - Hikari Okamoto
- Laboratory of Hematology, Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma-ku, Kobe 654-0142, Japan
| | - Natsumi Hasegawa
- Laboratory of Hematology, Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma-ku, Kobe 654-0142, Japan
| | - Shigetaka Asano
- Research Organization for Nano & Life Innovation, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 159-8555, Japan
| | - Mitsuhiro Ito
- Laboratory of Hematology, Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma-ku, Kobe 654-0142, Japan
- Research Organization for Nano & Life Innovation, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 159-8555, Japan
- Corresponding author.
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5
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Matsubara L, Fukuoka T, Sudo K, Fukunaga T, Imanishi A, Kuronuma K, Matsuo M, Kamoshida S, Hasegawa N, Asano S, Ito M. Translin restricts the growth of pubertal mammary epithelial cells estrogen-independently in mice. Biochem Biophys Res Commun 2020; 521:562-568. [PMID: 31677798 DOI: 10.1016/j.bbrc.2019.10.176] [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: 08/24/2019] [Accepted: 10/24/2019] [Indexed: 11/24/2022]
Abstract
Translin, a ubiquitous RNA/DNA-binding protein that forms a hetero-octamer together with Translin-associated factor X (TRAX), possesses endoribonuclease activity and plays a physiological role in restricting the size and differentiation of mesenchymal precursor cells. However, the precise role of Translin in epithelial cells remains unclear. Here, we show evidence that Translin restricts the growth of pubertal mammary epithelial cells. The mammary epithelia of Translin-null females exhibited retarded growth before puberty, but highly enhanced growth and DNA synthesis with increased ramification after the onset of puberty. Primary cultures of Translin-null mammary epithelial cells showed augmented DNA synthesis in a ligand-independent and ligand-enhanced manner. Translin-null ovariectomized mice implanted with slow-release estrogen pellets showed enhanced length and ramification of the mammary glands. Mammary epithelial growth was also observed in ovariectomized Translin-null mice implanted with placebo pellets. Luciferase reporter assays using embryonic fibroblasts from Translin-null mice showed unaltered estrogen receptor α function. These results indicate that Translin plays a physiological role in restricting intrinsic growth, beyond mesenchymal cells, of pubertal mammary epithelial cells.
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Affiliation(s)
- Leo Matsubara
- Laboratory of Hematology, Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma-ku, Kobe, 654-0142, Japan
| | - Tomoya Fukuoka
- Laboratory of Hematology, Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma-ku, Kobe, 654-0142, Japan
| | - Katsuko Sudo
- Pre-clinical Research Center, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan; Research Organization for Nano & Life Innovation, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo, 159-8555, Japan
| | - Takako Fukunaga
- Laboratory of Hematology, Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma-ku, Kobe, 654-0142, Japan
| | - Azusa Imanishi
- Laboratory of Hematology, Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma-ku, Kobe, 654-0142, Japan
| | - Kana Kuronuma
- Laboratory of Hematology, Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma-ku, Kobe, 654-0142, Japan
| | - Miki Matsuo
- Laboratory of Hematology, Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma-ku, Kobe, 654-0142, Japan
| | - Shingo Kamoshida
- Laboratory of Pathology, Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma-ku, Kobe, 654-0142, Japan
| | - Natsumi Hasegawa
- Laboratory of Hematology, Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma-ku, Kobe, 654-0142, Japan
| | - Shigetaka Asano
- Research Organization for Nano & Life Innovation, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo, 159-8555, Japan
| | - Mitsuhiro Ito
- Laboratory of Hematology, Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma-ku, Kobe, 654-0142, Japan; Research Organization for Nano & Life Innovation, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo, 159-8555, Japan.
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6
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Fukuoka T, Kawai A, Takahara T, Mori M, Roeder RG, Hasegawa N, Ito M. PML-RARα induces all-trans retinoic acid-dependent transcriptional activation through interaction with MED1. Transcription 2019; 10:147-156. [PMID: 31135261 DOI: 10.1080/21541264.2019.1624467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Abstract
Transcriptional activation by PML-RARα, an acute promyelocytic leukemia-related oncofusion protein, requires pharmacological concentrations of all-trans retinoic acid (ATRA). However, the mechanism by which the liganded PML-RARα complex leads to the formation of the preinitiation complex has been unidentified. Here we demonstrate that the Mediator subunit MED1 plays an important role in the ATRA-dependent activation of the PML-RARα-bound promoter. Luciferase reporter assays showed that PML-RARα induced significant transcription at pharmacological doses (1 μM) of ATRA; however, this was submaximal and equivalent to the level of transcription driven by intact RARα at physiological doses (1 nM) of ATRA. Transcription depended upon the interaction of PML-RARα with the two LxxLL nuclear receptor recognition motifs of MED1, and LxxLL→LxxAA mutations led to minimal transcription. Mechanistically, MED1 interacted ATRA-dependently with the RARα portion of PML-RARα through the two LxxLL motifs of MED1. These results suggest that PML-RARα initiates ATRA-induced transcription through its interaction with MED1.
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Affiliation(s)
- Tomoya Fukuoka
- a Laboratory of Hematology, Division of Medical Biophysics , Kobe University Graduate School of Health Sciences , Kobe , Japan
| | - Asami Kawai
- a Laboratory of Hematology, Division of Medical Biophysics , Kobe University Graduate School of Health Sciences , Kobe , Japan
| | - Taku Takahara
- a Laboratory of Hematology, Division of Medical Biophysics , Kobe University Graduate School of Health Sciences , Kobe , Japan
| | - Mahiro Mori
- a Laboratory of Hematology, Division of Medical Biophysics , Kobe University Graduate School of Health Sciences , Kobe , Japan
| | - Robert G Roeder
- b Laboratory of Biochemistry and Molecular Biology , the Rockefeller University , New York , NY , USA
| | - Natsumi Hasegawa
- a Laboratory of Hematology, Division of Medical Biophysics , Kobe University Graduate School of Health Sciences , Kobe , Japan
| | - Mitsuhiro Ito
- a Laboratory of Hematology, Division of Medical Biophysics , Kobe University Graduate School of Health Sciences , Kobe , Japan.,b Laboratory of Biochemistry and Molecular Biology , the Rockefeller University , New York , NY , USA
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7
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Jamali N, Song YS, Sorenson CM, Sheibani N. 1,25(OH) 2D 3 regulates the proangiogenic activity of pericyte through VDR-mediated modulation of VEGF production and signaling of VEGF and PDGF receptors. FASEB Bioadv 2019; 1:415-434. [PMID: 31396585 PMCID: PMC6687334 DOI: 10.1096/fba.2018-00067] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
We have previously demonstrated that the active form of vitamin D (calcitriol; 1,25(OH)2D3) is a potent inhibitor of retinal neovascularization. However, the underlying molecular and cellular mechanisms involved remained poorly understood. Perivascular supporting cells including pericytes (PC) play important roles during angiogenesis, vascular maturation, and stabilization of blood vessels. How 1,25(OH)2D3 affects retinal PC proliferation and migration, and whether these effects are mediated through vitamin D receptor (VDR), are unknown. Here, we determined the impact of 1,25(OH)2D3 on retinal PC prepared from wild‐type (Vdr+/+) and VDR‐deficient (Vdr−/−) mice. Retinal PC expressed significantly higher VDR levels compared to retinal endothelial cells (EC). Unlike retinal EC, 1,25(OH)2D3 significantly decreased PC proliferation and migration and resulted in a G0/G1 cell cycle arrest. Although 1,25(OH)2D3 did not inhibit the proliferation of Vdr−/− PC, it did inhibit their migration. PC adhesion to various extracellular matrix (ECM) proteins and ECM production were also affected by incubation of PC with 1,25(OH)2D3. Vdr−/− PC were more adherent compared with Vdr+/+ cells. Mechanistically, incubation of Vdr+/+ PC with 1,25(OH)2D3 resulted in an increased expression of vascular endothelial growth factor (VEGF) and attenuation of signaling through VEGF‐R2 and platelet‐derived growth factor receptor‐beta. Incubation with soluble VEGF‐R1 (sFlt‐1) partially reversed the effect of VEGF on Vdr+/+ PC. In addition, incubation of Vdr+/+ PC with VEGF or inhibition of VEGF‐R2 increased VDR expression. Together, these results suggest an important role for retinal PC as a target for vitamin D and VDR action for attenuation of angiogenesis.
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Affiliation(s)
- Nasim Jamali
- Department of Ophthalmology and Visual Sciences, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin.,McPherson Eye Research Institute, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
| | - Yong-Seok Song
- Department of Ophthalmology and Visual Sciences, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
| | - Christine M Sorenson
- McPherson Eye Research Institute, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin.,Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
| | - Nader Sheibani
- Department of Ophthalmology and Visual Sciences, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin.,McPherson Eye Research Institute, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin.,Department of Cell and Regenerative Biology, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin.,Department of Biomedical Engineering, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
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8
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Ikeuchi Y, Imanishi A, Sudo K, Fukunaga T, Yokoi A, Matsubara L, Goto C, Fukuoka T, Kuronuma K, Kono R, Hasegawa N, Asano S, Ito M. Translin modulates mesenchymal cell proliferation and differentiation in mice. Biochem Biophys Res Commun 2018; 504:115-122. [PMID: 30172368 DOI: 10.1016/j.bbrc.2018.08.141] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Accepted: 08/23/2018] [Indexed: 12/25/2022]
Abstract
Translin, a highly conserved DNA/RNA binding protein that forms a hetero-octamer together with Translin-associated factor X (TRAX), possesses a broad variety of functions, including RNA processing and DNA repair. Recent studies have reported that Translin is involved in mesenchymal cell physiology. Thus, here we analyzed the intrinsic role of Translin in mesenchymal cell proliferation and differentiation. Translin-deficient E11.5 mouse embryonic fibroblasts showed enhanced growth. Translin-deficient bone marrow-derived mesenchymal stem cells showed substantial expansion in vivo and enhanced proliferation in vitro. These cells also showed enhanced osteogenic and adipocytic differentiation. Histological analyses showed adipocytic hypertrophy in various adipose tissues. Translin knockout did not affect the growth of subcutaneous white adipose tissue-derived stem cells, but enhanced adipocytic differentiation was observed in vitro. Contrary to previous reports, in vitro-fertilized Translin-null mice were not runted and exhibited normal metabolic homeostasis, indicating the fragility of these mice to environmental conditions. Together, these data suggest that Translin plays an intrinsic role in restricting mesenchymal cell proliferation and differentiation.
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Affiliation(s)
- Yukiko Ikeuchi
- Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, 654-0142, Japan
| | - Azusa Imanishi
- Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, 654-0142, Japan
| | - Katsuko Sudo
- Pre-clinical Research Center, Tokyo Medical University, Tokyo, 160-8402, Japan; Consolidated Research Institute for Advanced Science and Medical Care, Waseda University, Tokyo, 169-8555, Japan
| | - Takako Fukunaga
- Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, 654-0142, Japan
| | - Aya Yokoi
- Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, 654-0142, Japan
| | - Leo Matsubara
- Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, 654-0142, Japan
| | - Chie Goto
- Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, 654-0142, Japan
| | - Tomoya Fukuoka
- Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, 654-0142, Japan
| | - Kana Kuronuma
- Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, 654-0142, Japan
| | - Ruri Kono
- Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, 654-0142, Japan
| | - Natsumi Hasegawa
- Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, 654-0142, Japan
| | - Shigetaka Asano
- Consolidated Research Institute for Advanced Science and Medical Care, Waseda University, Tokyo, 169-8555, Japan
| | - Mitsuhiro Ito
- Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe, 654-0142, Japan; Consolidated Research Institute for Advanced Science and Medical Care, Waseda University, Tokyo, 169-8555, Japan.
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9
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Liu FD, Pishesha N, Poon Z, Kaushik T, Van Vliet KJ. Material Viscoelastic Properties Modulate the Mesenchymal Stem Cell Secretome for Applications in Hematopoietic Recovery. ACS Biomater Sci Eng 2017; 3:3292-3306. [DOI: 10.1021/acsbiomaterials.7b00644] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Frances D. Liu
- Department
of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- BioSystems
and Micromechanics (BioSyM) Interdisciplinary Research Group, Singapore−MIT Alliance for Research and Technology, CREATE, Singapore 138602
| | - Novalia Pishesha
- Department
of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Whitehead Institute for Biomedical Research, Cambridge, Massachusetts 02139, United States
| | - Zhiyong Poon
- BioSystems
and Micromechanics (BioSyM) Interdisciplinary Research Group, Singapore−MIT Alliance for Research and Technology, CREATE, Singapore 138602
| | - Tanwi Kaushik
- BioSystems
and Micromechanics (BioSyM) Interdisciplinary Research Group, Singapore−MIT Alliance for Research and Technology, CREATE, Singapore 138602
| | - Krystyn J. Van Vliet
- Department
of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- BioSystems
and Micromechanics (BioSyM) Interdisciplinary Research Group, Singapore−MIT Alliance for Research and Technology, CREATE, Singapore 138602
- Department
of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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10
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Tanaka S, Maekawa A, Matsubara L, Imanishi A, Yano M, Roeder RG, Hasegawa N, Asano S, Ito M. Periostin supports hematopoietic progenitor cells and niche-dependent myeloblastoma cells in vitro. Biochem Biophys Res Commun 2016; 478:1706-12. [PMID: 27596966 PMCID: PMC5808943 DOI: 10.1016/j.bbrc.2016.09.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2016] [Accepted: 09/01/2016] [Indexed: 12/14/2022]
Abstract
The expression of extracellular matrix protein periostin (POSTN) was attenuated in Med1(-/-) mouse embryonic fibroblasts (MEFs), which exhibited a decreased capability to support hematopoietic progenitor cells (HPCs) in vitro. When bone marrow (BM) cells were cocultured with mitomycin C-treated Med1(+/+) MEFs, or OP-9 or MS-5 BM stromal cells, in the presence of anti-POSTN antibody, the growth of BM cells and number of long-term culture-initiating cells (LTC-ICs) were attenuated. When BM cells were cocultured with Med1(-/-) MEFs in the presence of recombinant POSTN, the growth of BM cells and the number of LTC-ICs were restored. Moreover, antibody-mediated blockage of stromal cells-derived POSTN markedly reduced the growth and cobblestone formation, a leukemic stem cell feature, of stromal cell-dependent MB-1 myeloblastoma cells. POSTN was expressed both in BM cells and variably in different BM stromal cells. Expression in the latter cells was increased by physical interaction with hematopoietic cells. The receptor for POSTN, integrin αvβ3, was expressed abundantly in BM stromal cells. The addition of recombinant POSTN to BM stromal cells induced intracellular signaling downstream of integrin αvβ3. These results suggest that stromal cell POSTN supports both normal HPCs and leukemia-initiating cells in vitro, at least in part, indirectly by acting on stromal cells in an autocrine or paracrine manner.
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Affiliation(s)
- Satowa Tanaka
- Laboratory of Hematology, Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma-ku, Kobe 654-0142, Japan
| | - Akio Maekawa
- Laboratory of Hematology, Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma-ku, Kobe 654-0142, Japan
| | - Leo Matsubara
- Laboratory of Hematology, Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma-ku, Kobe 654-0142, Japan
| | - Azusa Imanishi
- Laboratory of Hematology, Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma-ku, Kobe 654-0142, Japan
| | - Masaya Yano
- Laboratory of Hematology, Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma-ku, Kobe 654-0142, Japan
| | - Robert G Roeder
- Laboratory of Biochemistry and Molecular Biology, The Rockefeller University, 1230 York Avenue, New York, NY 10065, USA
| | - Natsumi Hasegawa
- Laboratory of Hematology, Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma-ku, Kobe 654-0142, Japan
| | - Shigetaka Asano
- Research Organization for Nano & Life Innovation, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 159-8555, Japan
| | - Mitsuhiro Ito
- Laboratory of Hematology, Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma-ku, Kobe 654-0142, Japan; Laboratory of Biochemistry and Molecular Biology, The Rockefeller University, 1230 York Avenue, New York, NY 10065, USA; Research Organization for Nano & Life Innovation, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 159-8555, Japan.
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11
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Ying W, Wang H, Bazer FW, Zhou B. Pregnancy-secreted Acid phosphatase, uteroferrin, enhances fetal erythropoiesis. Endocrinology 2014; 155:4521-30. [PMID: 25093463 PMCID: PMC4197981 DOI: 10.1210/en.2014-1397] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Uteroferrin (UF) is a progesterone-induced acid phosphatase produced by uterine glandular epithelia in mammals during pregnancy and targeted to sites of hematopoiesis throughout pregnancy. The expression pattern of UF is coordinated with early fetal hematopoietic development in the yolk sac and then liver, spleen, and bone to prevent anemia in fetuses. Our previous studies suggested that UF exerts stimulatory impacts on hematopoietic progenitor cells. However, the precise role and thereby the mechanism of action of UF on hematopoiesis have not been investigated previously. Here, we report that UF is a potent regulator that can greatly enhance fetal erythropoiesis. Using primary fetal liver hematopoietic cells, we observed a synergistic stimulatory effect of UF with erythropoietin and other growth factors on both burst-forming unit-erythroid and colony-forming unit-erythroid formation. Further, we demonstrated that UF enhanced erythropoiesis at terminal stages using an in vitro culture system. Surveying genes that are crucial for erythrocyte formation at various stages revealed that UF, along with erythropoietin, up-regulated transcription factors required for terminal erythrocyte differentiation and genes required for synthesis of hemoglobin. Collectively, our results demonstrate that UF is a cytokine secreted by uterine glands in response to progesterone that promotes fetal erythropoiesis at various stages of pregnancy, including burst-forming unit-erythroid and colony-forming unit-erythroid progenitor cells and terminal stages of differentiation of hematopoietic cells in the erythroid lineage.
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Affiliation(s)
- Wei Ying
- Department of Animal Science (W.Y., F.W.B.), Texas A&M University, College Station, Texas 77843-2471; and Department of Veterinary Physiology and Pharmacology (H.W., B.Z.), College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas 77843-4466
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12
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Erb U, Megaptche AP, Gu X, Büchler MW, Zöller M. CD44 standard and CD44v10 isoform expression on leukemia cells distinctly influences niche embedding of hematopoietic stem cells. J Hematol Oncol 2014; 7:29. [PMID: 24684724 PMCID: PMC4022365 DOI: 10.1186/1756-8722-7-29] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2014] [Accepted: 03/25/2014] [Indexed: 12/18/2022] Open
Abstract
Background A blockade of CD44 is considered a therapeutic option for the elimination of leukemia initiating cells. However, anti-panCD44 can interfere with hematopoiesis. Therefore we explored, whether a CD44 variant isoform (CD44v)-specific antibody can inhibit leukemia growth without attacking hematopoiesis. As a model we used CD44v10 transfected EL4 thymoma cells (EL4-v10). Methods The therapeutic efficacy of anti-panCD44 and anti-CD44v10 was evaluated after intravenous application of EL4/EL4-v10. Ex vivo and in vitro studies evaluated the impact of anti-panCD44 and anti-CD44v10 as well as of EL4 and EL4-v10 on hematopoietic stem cells (HSC) in cocultures with bone marrow stroma cells with a focus on adhesion, migration, cell cycle progression and apoptosis resistance. Results Intravenously injected EL4-v10 grow in bone marrow and spleen. Anti-panCD44 and, more pronounced anti-CD44v10 prolong the survival time. The higher efficacy of anti-CD44v10 compared to anti-panCD44 does not rely on stronger antibody-dependent cellular cytotoxicity or on promoting EL4-v10 apoptosis. Instead, EL4 compete with HSC niche embedding. This has consequences on quiescence and apoptosis-protecting signals provided by the stroma. Anti-panCD44, too, more efficiently affected embedding of HSC than of EL4 in the bone marrow stroma. EL4-v10, by catching osteopontin, migrated on bone marrow stroma and did not or weakly interfere with HSC adhesion. Anti-CD44v10, too, did not affect the HSC – bone marrow stroma crosstalk. Conclusion The therapeutic effect of anti-panCD44 and anti-CD44v10 is based on stimulation of antibody-dependent cellular cytotoxicity. The superiority of anti-CD44v10 is partly due to blocking CD44v10-stimulated osteopontin expression that could drive HSC out of the niche. However, the main reason for the superiority of anti-CD44v10 relies on neither EL4-v10 nor anti-CD44v10 severely interfering with HSC – stroma cell interactions that, on the other hand, are affected by EL4 and anti-panCD44. Anti-panCD44 disturbing HSC embedding in the osteogenic niche weakens its therapeutic effect towards EL4. Thus, as far as leukemic cells express CD44v isoforms, the therapeutic use of anti-panCD44 should be avoided in favor of CD44v-specific antibodies.
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Affiliation(s)
| | | | | | | | - Margot Zöller
- Department of Tumor Cell Biology, University Hospital of Surgery, Heidelberg, Germany.
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13
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Mizuta S, Minami T, Fujita H, Kaminaga C, Matsui K, Ishino R, Fujita A, Oda K, Kawai A, Hasegawa N, Urahama N, Roeder RG, Ito M. CCAR1/CoCoA pair-mediated recruitment of the Mediator defines a novel pathway for GATA1 function. Genes Cells 2014; 19:28-51. [PMID: 24245781 PMCID: PMC4388278 DOI: 10.1111/gtc.12104] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2013] [Accepted: 09/29/2013] [Indexed: 01/18/2023]
Abstract
The MED1 subunit of the Mediator transcriptional coregulator complex coactivates GATA1 and induces erythropoiesis. Here, we show the dual mechanism of GATA1- and MED1-mediated transcription. MED1 expression levels in K562 erythroleukemia cells paralleled the levels of GATA1-targeted gene transcription and erythroid differentiation. An N-terminal fragment of MED1, MED1(1-602), which is incapable of interacting with GATA1, enhanced GATA1-targeted gene transcription and erythroid differentiation, and introduction of MED1(1-602) into Med1(-/-) mouse embryonic fibroblasts (MEFs) partially rescued GATA1-mediated transcription. The C-terminal zinc-finger domain of GATA1 interacts with the MED1(1-602)-interacting coactivator CCAR1, CoCoA and MED1(681-715). CCAR1 and CoCoA synergistically enhanced GATA1-mediated transcription from the γ-globin promoter in MEFs. Recombinant GATA1, CCAR1, CoCoA and MED1(1-602) formed a complex in vitro, and GATA1, CCAR1, CoCoA and MED1 were recruited to the γ-globin promoter in K562 cells during erythroid differentiation. Therefore, in addition to the direct interaction between GATA1 and MED1, CoCoA and CCAR1 appear to relay the GATA1 signal to MED1, and multiple modes of the GATA1-MED1 axis may help to fine-tune GATA1 function during GATA1-mediated homeostasis events.
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Affiliation(s)
- Shumpei Mizuta
- Laboratory of Hematology, Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe 654-0142, Japan
| | - Tomoya Minami
- Laboratory of Hematology, Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe 654-0142, Japan
| | - Haruka Fujita
- Laboratory of Hematology, Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe 654-0142, Japan
| | - Chihiro Kaminaga
- Laboratory of Hematology, Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe 654-0142, Japan
| | - Keiji Matsui
- Laboratory of Hematology, Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe 654-0142, Japan
| | - Ruri Ishino
- Laboratory of Hematology, Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe 654-0142, Japan
| | - Azusa Fujita
- Laboratory of Hematology, Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe 654-0142, Japan
| | - Kasumi Oda
- Laboratory of Hematology, Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe 654-0142, Japan
| | - Asami Kawai
- Laboratory of Hematology, Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe 654-0142, Japan
| | - Natsumi Hasegawa
- Laboratory of Hematology, Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe 654-0142, Japan
| | - Norinaga Urahama
- Laboratory of Hematology, Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe 654-0142, Japan
| | - Robert G. Roeder
- Laboratory of Biochemistry and Molecular Biology, the Rockefeller University, New York, NY 10065, USA
| | - Mitsuhiro Ito
- Laboratory of Hematology, Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, Kobe 654-0142, Japan,Department of Family and Community Medicine, Kobe University Graduate School of Medicine, Kobe 654-0142, Japan,Laboratory of Biochemistry and Molecular Biology, the Rockefeller University, New York, NY 10065, USA,Consolidated Research Institute for Advanced Science and Medical Care, Waseda University, Tokyo, Japan,Corresponding author. Mailing address: 7-10-2 Tomogaoka, Suma-ku, Kobe 654-0142, Japan. Phone: 81-78-796-4546. Fax: 81-78-796-4509.
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14
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Matsui K, Oda K, Mizuta S, Ishino R, Urahama N, Hasegawa N, Roeder RG, Ito M. Mediator subunit MED1 is a T3-dependent and T3-independent coactivator on the thyrotropin β gene promoter. Biochem Biophys Res Commun 2013; 440:184-9. [PMID: 24055033 DOI: 10.1016/j.bbrc.2013.09.061] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2013] [Accepted: 09/11/2013] [Indexed: 11/28/2022]
Abstract
The MED1 subunit of the Mediator transcriptional coregulator complex is a nuclear receptor-specific coactivator. A negative feedback mechanism of thyroid-stimulating hormone (TSH, or thyrotropin) expression in the thyrotroph in the presence of triiodothyronine (T3) is employed by liganded thyroid hormone receptor β (TRβ) on the TSHβ gene promoter, where conventional histone-modifying coactivators act as corepressors. We now provide evidence that MED1 is a ligand-dependent positive cofactor on this promoter. TSHβ gene transcription was attenuated in MED1 mutant mice in which the nuclear receptor-binding ability of MED1 was specifically disrupted. MED1 stimulated GATA2- and Pit1-mediated TSHβ gene promoter activity in a ligand-independent manner in cultured cells. MED1 also stimulated transcription from the TSHβ gene promoter in a T3-dependent manner. The transcription was further enhanced when the T3-dependent corepressors SRC1, SRC2, and HDAC2 were downregulated. Hence, MED1 is a T3-dependent and -independent coactivator on the TSHβ gene promoter.
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Affiliation(s)
- Keiji Matsui
- Laboratory of Hematology, Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, 7-10-2 Tomogaoka, Suma-ku, Kobe 654-0142, Japan
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15
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Ishino R, Minami K, Tanaka S, Nagai M, Matsui K, Hasegawa N, Roeder RG, Asano S, Ito M. FGF7 supports hematopoietic stem and progenitor cells and niche-dependent myeloblastoma cells via autocrine action on bone marrow stromal cells in vitro. Biochem Biophys Res Commun 2013; 440:125-31. [DOI: 10.1016/j.bbrc.2013.09.044] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2013] [Accepted: 09/08/2013] [Indexed: 12/16/2022]
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16
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Kumar S, Sharma P, Kumar D, Chakraborty G, Gorain M, Kundu GC. Functional characterization of stromal osteopontin in melanoma progression and metastasis. PLoS One 2013; 8:e69116. [PMID: 23935934 PMCID: PMC3720680 DOI: 10.1371/journal.pone.0069116] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2013] [Accepted: 06/06/2013] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Recent studies demonstrated that not only tumor derived- but stroma derived factors play crucial role in cancer development. Osteopontin (OPN) is a secreted non-collagenous, sialic acid rich, chemokine-like phosphoglycoprotein that facilitates cell-matrix interactions and promotes tumor progression. Elevated level of OPN has been shown in melanoma patient and predicted as a prognostic marker. Recent reports have indicated that stroma-derived OPN are involved in regulating stem cell microenvironment and pre-neoplastic cell growth. However, the function of stroma derived OPN in regulation of side population (SP) enrichment leading to melanoma growth, angiogenesis and metastasis is not well studied and yet to be the focus of intense investigation. METHODOLOGY/PRINCIPAL FINDINGS In this study, using melanoma model, in wild type and OPN knockout mice, we have demonstrated that absence of host OPN effectively curbs melanoma growth, angiogenesis and metastasis. Melanoma cells isolated from tumor of OPN wild type (OPN(+/+)) mice exhibited more tumorigenic feature as compared to the parental cell line or cells isolated from the tumors of OPN KO (OPN(-/-)) mice. Furthermore, host OPN induces VEGF, ABCG2 and ERK1/2 expression and activation in B16-WT cells. We report for the first time that stroma derived OPN regulates SP phenotype in murine melanoma cells. Moreover, loss in and gain of function studies demonstrated that stroma-derived OPN regulates SP phenotype specifically through ERK2 activation. CONCLUSIONS This study establish at least in part, the molecular mechanism underlying the role of host OPN in melanoma growth and angiogenesis, and better understanding of host OPN-tumor interaction may assist the advancement of novel therapeutic strategy for the management of malignant melanoma.
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Affiliation(s)
- Santosh Kumar
- National Center for Cell Science (NCCS), NCCS Complex, Pune, Maharashtra, India
| | - Priyanka Sharma
- National Center for Cell Science (NCCS), NCCS Complex, Pune, Maharashtra, India
| | - Dhiraj Kumar
- National Center for Cell Science (NCCS), NCCS Complex, Pune, Maharashtra, India
| | - Goutam Chakraborty
- National Center for Cell Science (NCCS), NCCS Complex, Pune, Maharashtra, India
| | - Mahadeo Gorain
- National Center for Cell Science (NCCS), NCCS Complex, Pune, Maharashtra, India
| | - Gopal C. Kundu
- National Center for Cell Science (NCCS), NCCS Complex, Pune, Maharashtra, India
- * E-mail:
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17
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Mediator subunits MED1 and MED24 cooperatively contribute to pubertal mammary gland development and growth of breast carcinoma cells. Mol Cell Biol 2012; 32:1483-95. [PMID: 22331469 DOI: 10.1128/mcb.05245-11] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The Mediator subunit MED1 is essential for mammary gland development and lactation, whose contribution through direct interaction with estrogen receptors (ERs) is restricted to involvement in pubertal mammary gland development and luminal cell differentiation. Here, we provide evidence that the MED24-containing submodule of Mediator functionally communicates specifically with MED1 in pubertal mammary gland development. Mammary glands from MED1/MED24 double heterozygous knockout mice showed profound retardation in ductal branching during puberty, while single haploinsufficient glands developed normally. DNA synthesis of both luminal and basal cells were impaired in double mutant mice, and the expression of ER-targeted genes encoding E2F1 and cyclin D1, which promote progression through the G(1)/S phase of the cell cycle, was attenuated. Luciferase reporter assays employing double mutant mouse embryonic fibroblasts showed selective impairment in ER functions. Various breast carcinoma cell lines expressed abundant amounts of MED1, MED24, and MED30, and attenuated expression of MED1 and MED24 in breast carcinoma cells led to attenuated DNA synthesis and growth. These results indicate functional communications between the MED1 subunit and the MED24-containing submodule that mediate estrogen receptor functions and growth of both normal mammary epithelial cells and breast carcinoma cells.
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18
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Carrancio S, Blanco B, Romo C, Muntion S, Lopez-Holgado N, Blanco JF, Briñon JG, San Miguel JF, Sanchez-Guijo FM, del Cañizo MC. Bone marrow mesenchymal stem cells for improving hematopoietic function: an in vitro and in vivo model. Part 2: Effect on bone marrow microenvironment. PLoS One 2011; 6:e26241. [PMID: 22028841 PMCID: PMC3197625 DOI: 10.1371/journal.pone.0026241] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2011] [Accepted: 09/22/2011] [Indexed: 12/13/2022] Open
Abstract
The aim of the present study was to determine how mesenchymal stem cells (MSC) could improve bone marrow (BM) stroma function after damage, both in vitro and in vivo. Human MSC from 20 healthy donors were isolated and expanded. Mobilized selected CD34+ progenitor cells were obtained from 20 HSCT donors. For in vitro study, long-term bone marrow cultures (LTBMC) were performed using a etoposide damaged stromal model to test MSC effect in stromal confluence, capability of MSC to lodge in stromal layer as well as some molecules (SDF1, osteopontin,) involved in hematopoietic niche maintenance were analyzed. For the in vivo model, 64 NOD/SCID recipients were transplanted with CD34+ cells administered either by intravenous (IV) or intrabone (IB) route, with or without BM derived MSC. MSC lodgement within the BM niche was assessed by FISH analysis and the expression of SDF1 and osteopontin by immunohistochemistry. In vivo study showed that when the stromal damage was severe, TP-MSC could lodge in the etoposide-treated BM stroma, as shown by FISH analysis. Osteopontin and SDF1 were differently expressed in damaged stroma and their expression restored after TP-MSC addition. Human in vivo MSC lodgement was observed within BM niche by FISH, but MSC only were detected and not in the contralateral femurs. Human MSC were located around blood vessels in the subendoestal region of femurs and expressed SDF1 and osteopontin. In summary, our data show that MSC can restore BM stromal function and also engraft when a higher stromal damage was done. Interestingly, MSC were detected locally where they were administered but not in the contralateral femur.
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Affiliation(s)
- Soraya Carrancio
- Servicio de Hematología, Hospital Universitario de Salamanca, Salamanca, Spain
- Centro en Red de Medicina Regenerativa y Terapia Celular de Castilla y León and Red Nacional de Terapia Celular (Tercel, ISCIII), Castilla y León, Spain
- Centro de Investigación del Cáncer-IBMCC (Universidad de Salamanca-CSIC), Salamanca, Spain
| | - Belen Blanco
- Servicio de Hematología, Hospital Universitario de Salamanca, Salamanca, Spain
- Centro en Red de Medicina Regenerativa y Terapia Celular de Castilla y León and Red Nacional de Terapia Celular (Tercel, ISCIII), Castilla y León, Spain
- Centro de Investigación del Cáncer-IBMCC (Universidad de Salamanca-CSIC), Salamanca, Spain
| | - Carlos Romo
- Servicio de Hematología, Hospital Universitario de Salamanca, Salamanca, Spain
- Centro en Red de Medicina Regenerativa y Terapia Celular de Castilla y León and Red Nacional de Terapia Celular (Tercel, ISCIII), Castilla y León, Spain
- Centro de Investigación del Cáncer-IBMCC (Universidad de Salamanca-CSIC), Salamanca, Spain
| | - Sandra Muntion
- Servicio de Hematología, Hospital Universitario de Salamanca, Salamanca, Spain
- Centro en Red de Medicina Regenerativa y Terapia Celular de Castilla y León and Red Nacional de Terapia Celular (Tercel, ISCIII), Castilla y León, Spain
| | - Natalia Lopez-Holgado
- Servicio de Hematología, Hospital Universitario de Salamanca, Salamanca, Spain
- Centro en Red de Medicina Regenerativa y Terapia Celular de Castilla y León and Red Nacional de Terapia Celular (Tercel, ISCIII), Castilla y León, Spain
| | - Juan F. Blanco
- Servicio de Traumatología, Hospital Universitario de Salamanca, Salamanca, Spain
| | - Jesus G. Briñon
- Departamento de Biologia Celular y Patologia, Universidad de Salamanca, Spain
| | - Jesus F. San Miguel
- Servicio de Hematología, Hospital Universitario de Salamanca, Salamanca, Spain
- Centro en Red de Medicina Regenerativa y Terapia Celular de Castilla y León and Red Nacional de Terapia Celular (Tercel, ISCIII), Castilla y León, Spain
- Centro de Investigación del Cáncer-IBMCC (Universidad de Salamanca-CSIC), Salamanca, Spain
| | - Fermin M. Sanchez-Guijo
- Servicio de Hematología, Hospital Universitario de Salamanca, Salamanca, Spain
- Centro en Red de Medicina Regenerativa y Terapia Celular de Castilla y León and Red Nacional de Terapia Celular (Tercel, ISCIII), Castilla y León, Spain
| | - M. Consuelo del Cañizo
- Servicio de Hematología, Hospital Universitario de Salamanca, Salamanca, Spain
- Centro en Red de Medicina Regenerativa y Terapia Celular de Castilla y León and Red Nacional de Terapia Celular (Tercel, ISCIII), Castilla y León, Spain
- Centro de Investigación del Cáncer-IBMCC (Universidad de Salamanca-CSIC), Salamanca, Spain
- * E-mail:
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Unraveling framework of the ancestral Mediator complex in human diseases. Biochimie 2011; 94:579-87. [PMID: 21983542 DOI: 10.1016/j.biochi.2011.09.016] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2011] [Accepted: 09/15/2011] [Indexed: 01/13/2023]
Abstract
Mediator (MED) is a fundamental component of the RNA polymerase II-mediated transcription machinery. This multiprotein complex plays a pivotal role in the regulation of eukaryotic mRNA synthesis. The yeast Mediator complex consists of 26 different subunits. Recent studies indicate additional pathogenic roles for Mediator, for example during transcription elongation and non-coding RNA production. Mediator subunits have been emerging also to have pathophysiological roles suggesting MED-dependent therapeutic targets involving in several diseases, such as cancer, cardiovascular disease (CVD), metabolic and neurological disorders.
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20
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Stein GS, Stein JL, van Wijnen AJ, Lian JB, Zaidi SK, Nickerson JA, Montecino MA, Young DW. An architectural genetic and epigenetic perspective. Integr Biol (Camb) 2011; 3:297-303. [PMID: 21184003 PMCID: PMC3251170 DOI: 10.1039/c0ib00103a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The organization and intranuclear localization of nucleic acids and regulatory proteins contribute to both genetic and epigenetic parameters of biological control. Regulatory machinery in the cell nucleus is functionally compartmentalized in microenvironments (focally organized sites where regulatory factors reside) that provide threshold levels of factors required for transcription, replication, repair and cell survival. The common denominator for nuclear organization of regulatory machinery is that each component of control is architecturally configured and every component of control is embedded in architecturally organized networks that provide an infrastructure for integration and transduction of regulatory signals. It is realistic to anticipate emerging mechanisms that account for the organization and assembly of regulatory complexes within the cell nucleus can provide novel options for cancer diagnosis and therapy with maximal specificity, reduced toxicity and minimal off-target complications.
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Affiliation(s)
- Gary S Stein
- Department of Cell Biology and Cancer Center, University of Massachusetts Medical School, 55 Lake Avenue North, Worcester, MA 01655, USA.
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