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Martella M, Carlesso N, Waller ZAE, Marcucci G, Pichiorri F, Smith SS. Genomic Frequencies of Dynamic DNA Sequences and Mammalian Lifespan. Cancer Genomics Proteomics 2024; 21:238-251. [PMID: 38670588 PMCID: PMC11059594 DOI: 10.21873/cgp.20443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 03/02/2024] [Accepted: 03/07/2024] [Indexed: 04/28/2024] Open
Abstract
BACKGROUND/AIM Dynamic DNA sequences (i.e. sequences capable of forming hairpins, G-quadruplexes, i-motifs, and triple helices) can cause replication stress and associated mutations. One example of such a sequence occurs in the RACK7 gene in human DNA. Since this sequence forms i-motif structures at neutral pH that cause replication stress and result in spontaneous deletions in prostate cancer cells, our initial aim was to determine its potential utility as a biomarker of prostate cancer. MATERIALS AND METHODS We cloned and sequenced the region in RACK7 where i-motif deletions often occur in DNA obtained from eight individuals. Expressed prostatic secretions were obtained from three individuals with a positive biopsy for prostate cancer and two with individuals with a negative biopsy for prostate cancer. Peripheral blood specimens were obtained from two control healthy bone marrow donors and a marrow specimen was obtained from a third healthy marrow donor. Follow-up computer searches of the genomes of 74 mammalian species available at the NCBI ftp site or frequencies of 6 dynamic sequences known to produce mutations or replication stress using a program written in Mathematica were subsequently performed. RESULTS Deletions were found in RACK7 in specimens from both older normal adults, as well as specimens from older patients with cancer, but not in the youngest normal adult. The deletions appeared to show a weak trend to increasing frequency with patient age. This suggested that endogenous mutations associated with dynamic sequences might accumulate during aging and might serve as biomarkers of biological age rather than direct biomarkers of cancer. To test that hypothesis, we asked whether or not the genomic frequencies of several dynamic sequences known to produce replication stress or mutations in human DNA were inversely correlated with maximum lifespan in mammals. CONCLUSION Our results confirm this correlation for six dynamic sequences in 74 mammalian genomes studied, thereby suggesting that spontaneously induced replication stress and mutations linked to dynamic sequence frequency may limit lifespan by limiting genome stability.
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Affiliation(s)
- Marianna Martella
- Judy and Bernard Briskin Center for Multiple Myeloma Research, City of Hope, Duarte, CA, U.S.A
- Beckman Research Institute of the City of Hope, Duarte, CA, U.S.A
| | - Nadia Carlesso
- Judy and Bernard Briskin Center for Multiple Myeloma Research, City of Hope, Duarte, CA, U.S.A
- Department of Stem Cell Biology and Regenerative Medicine, City of Hope, Duarte, CA, U.S.A
| | - Zoë A E Waller
- University College London School of Pharmacy, London, U.K
| | - Guido Marcucci
- Department of Hematological Malignancies and Translational Science, City of Hope, Duarte, CA, U.S.A
| | - Flavia Pichiorri
- Judy and Bernard Briskin Center for Multiple Myeloma Research, City of Hope, Duarte, CA, U.S.A
- Beckman Research Institute of the City of Hope, Duarte, CA, U.S.A
| | - Steven S Smith
- Beckman Research Institute of the City of Hope, Duarte, CA, U.S.A.;
- Department of Stem Cell Biology and Regenerative Medicine, City of Hope, Duarte, CA, U.S.A
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Pomella S, Cassandri M, D'Archivio L, Porrazzo A, Cossetti C, Phelps D, Perrone C, Pezzella M, Cardinale A, Wachtel M, Aloisi S, Milewski D, Colletti M, Sreenivas P, Walters ZS, Barillari G, Di Giannatale A, Milano GM, De Stefanis C, Alaggio R, Rodriguez-Rodriguez S, Carlesso N, Vakoc CR, Velardi E, Schafer BW, Guccione E, Gatz SA, Wasti A, Yohe M, Ignatius M, Quintarelli C, Shipley J, Miele L, Khan J, Houghton PJ, Marampon F, Gryder BE, De Angelis B, Locatelli F, Rota R. MYOD-SKP2 axis boosts tumorigenesis in fusion negative rhabdomyosarcoma by preventing differentiation through p57 Kip2 targeting. Nat Commun 2023; 14:8373. [PMID: 38102140 PMCID: PMC10724275 DOI: 10.1038/s41467-023-44130-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 11/30/2023] [Indexed: 12/17/2023] Open
Abstract
Rhabdomyosarcomas (RMS) are pediatric mesenchymal-derived malignancies encompassing PAX3/7-FOXO1 Fusion Positive (FP)-RMS, and Fusion Negative (FN)-RMS with frequent RAS pathway mutations. RMS express the master myogenic transcription factor MYOD that, whilst essential for survival, cannot support differentiation. Here we discover SKP2, an oncogenic E3-ubiquitin ligase, as a critical pro-tumorigenic driver in FN-RMS. We show that SKP2 is overexpressed in RMS through the binding of MYOD to an intronic enhancer. SKP2 in FN-RMS promotes cell cycle progression and prevents differentiation by directly targeting p27Kip1 and p57Kip2, respectively. SKP2 depletion unlocks a partly MYOD-dependent myogenic transcriptional program and strongly affects stemness and tumorigenic features and prevents in vivo tumor growth. These effects are mirrored by the investigational NEDDylation inhibitor MLN4924. Results demonstrate a crucial crosstalk between transcriptional and post-translational mechanisms through the MYOD-SKP2 axis that contributes to tumorigenesis in FN-RMS. Finally, NEDDylation inhibition is identified as a potential therapeutic vulnerability in FN-RMS.
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Affiliation(s)
- Silvia Pomella
- Department of Hematology and Oncology, Cell and Gene Therapy, Bambino Gesù Children's Hospital, IRCCS, Roma, Italy
- Department of Clinical Sciences and Translational Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Matteo Cassandri
- Department of Hematology and Oncology, Cell and Gene Therapy, Bambino Gesù Children's Hospital, IRCCS, Roma, Italy
- Department of Radiological Oncological and Pathological Sciences, Sapienza University of Rome, Rome, Italy
| | - Lucrezia D'Archivio
- Department of Hematology and Oncology, Cell and Gene Therapy, Bambino Gesù Children's Hospital, IRCCS, Roma, Italy
| | - Antonella Porrazzo
- Department of Hematology and Oncology, Cell and Gene Therapy, Bambino Gesù Children's Hospital, IRCCS, Roma, Italy
- Department of Radiological Oncological and Pathological Sciences, Sapienza University of Rome, Rome, Italy
| | - Cristina Cossetti
- Department of Hematology and Oncology, Cell and Gene Therapy, Bambino Gesù Children's Hospital, IRCCS, Roma, Italy
| | - Doris Phelps
- Greehey Children's Cancer Research Institute (GCCRI), UT Health Science Center, San Antonio, TX, USA
| | - Clara Perrone
- Department of Hematology and Oncology, Cell and Gene Therapy, Bambino Gesù Children's Hospital, IRCCS, Roma, Italy
| | - Michele Pezzella
- Department of Hematology and Oncology, Cell and Gene Therapy, Bambino Gesù Children's Hospital, IRCCS, Roma, Italy
| | - Antonella Cardinale
- Department of Hematology and Oncology, Cell and Gene Therapy, Bambino Gesù Children's Hospital, IRCCS, Roma, Italy
| | - Marco Wachtel
- Department of Oncology and Children's Research Center, University Children's Hospital, Zurich, Switzerland
| | - Sara Aloisi
- Department of Genetics and Genome Sciences, Case Western Reserve University, Cleveland, OH, USA
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy
| | - David Milewski
- Oncogenomics Section, Genetics Branch, National Cancer Institute, NIH,, Bethesda, MD, USA
| | - Marta Colletti
- Department of Hematology and Oncology, Cell and Gene Therapy, Bambino Gesù Children's Hospital, IRCCS, Roma, Italy
| | - Prethish Sreenivas
- Greehey Children's Cancer Research Institute (GCCRI), UT Health Science Center, San Antonio, TX, USA
| | - Zoë S Walters
- Sarcoma Molecular Pathology, Divisions of Molecular Pathology, The Institute of Cancer Research, London, UK
- School of Cancer Sciences, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Giovanni Barillari
- Department of Clinical Sciences and Translational Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Angela Di Giannatale
- Department of Hematology and Oncology, Cell and Gene Therapy, Bambino Gesù Children's Hospital, IRCCS, Roma, Italy
| | - Giuseppe Maria Milano
- Department of Hematology and Oncology, Cell and Gene Therapy, Bambino Gesù Children's Hospital, IRCCS, Roma, Italy
| | | | - Rita Alaggio
- Department of Pathology Unit, Department of Laboratories, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Sonia Rodriguez-Rodriguez
- Department of Stem Cell and Regenerative Medicine, City of Hope National Medical Center, Duarte, CA, USA
| | - Nadia Carlesso
- Department of Stem Cell and Regenerative Medicine, City of Hope National Medical Center, Duarte, CA, USA
| | | | - Enrico Velardi
- Department of Hematology and Oncology, Cell and Gene Therapy, Bambino Gesù Children's Hospital, IRCCS, Roma, Italy
| | - Beat W Schafer
- Department of Oncology and Children's Research Center, University Children's Hospital, Zurich, Switzerland
| | - Ernesto Guccione
- Center for Therapeutics Discovery, Department of Oncological Sciences and Pharmacological Sciences, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Susanne A Gatz
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, West Midlands, UK
| | - Ajla Wasti
- Children and Young People's Unit, The Royal Marsden NHS Foundation Trust and Institute of Cancer Research, Sutton, UK
| | - Marielle Yohe
- Laboratory of Cell and Developmental Signaling, National Cancer Institute, NIH, Frederick, MD, USA
| | - Myron Ignatius
- Greehey Children's Cancer Research Institute (GCCRI), UT Health Science Center, San Antonio, TX, USA
| | - Concetta Quintarelli
- Department of Hematology and Oncology, Cell and Gene Therapy, Bambino Gesù Children's Hospital, IRCCS, Roma, Italy
- Department of Clinical Medicine and Surgery, University of Naples Federico II, Naples, Italy
| | - Janet Shipley
- Sarcoma Molecular Pathology, Divisions of Molecular Pathology, The Institute of Cancer Research, London, UK
| | - Lucio Miele
- Department of Genetics, Louisiana State University Health Sciences Center, New Orleans, LA, USA
| | - Javed Khan
- Oncogenomics Section, Genetics Branch, National Cancer Institute, NIH,, Bethesda, MD, USA
| | - Peter J Houghton
- Greehey Children's Cancer Research Institute (GCCRI), UT Health Science Center, San Antonio, TX, USA
| | - Francesco Marampon
- Department of Radiological Oncological and Pathological Sciences, Sapienza University of Rome, Rome, Italy
| | - Berkley E Gryder
- Department of Genetics and Genome Sciences, Case Western Reserve University, Cleveland, OH, USA
| | - Biagio De Angelis
- Department of Hematology and Oncology, Cell and Gene Therapy, Bambino Gesù Children's Hospital, IRCCS, Roma, Italy
| | - Franco Locatelli
- Department of Hematology and Oncology, Cell and Gene Therapy, Bambino Gesù Children's Hospital, IRCCS, Roma, Italy
- Department of Life Sciences and Public Health, Catholic University of the Sacred Heart, Rome, Italy
| | - Rossella Rota
- Department of Hematology and Oncology, Cell and Gene Therapy, Bambino Gesù Children's Hospital, IRCCS, Roma, Italy.
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Kim YW, Zara G, Kang H, Branciamore S, O'Meally D, Feng Y, Kuan CY, Luo Y, Nelson MS, Brummer AB, Rockne R, Chen ZB, Zheng Y, Cardoso AA, Carlesso N. Integration of single-cell transcriptomes and biological function reveals distinct behavioral patterns in bone marrow endothelium. Nat Commun 2022; 13:7235. [PMID: 36433940 PMCID: PMC9700769 DOI: 10.1038/s41467-022-34425-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 10/25/2022] [Indexed: 11/27/2022] Open
Abstract
Heterogeneity of endothelial cell (EC) populations reflects their diverse functions in maintaining tissue's homeostasis. However, their phenotypic, molecular, and functional properties are not entirely mapped. We use the Tie2-CreERT2;Rosa26-tdTomato reporter mouse to trace, profile, and cultivate primary ECs from different organs. As paradigm platform, we use this strategy to study bone marrow endothelial cells (BMECs). Single-cell mRNA sequencing of primary BMECs reveals that their diversity and native molecular signatures is transitorily preserved in an ex vivo culture that conserves key cell-to-cell microenvironment interactions. Macrophages sustain BMEC cellular diversity and expansion and preserve sinusoidal-like BMECs ex vivo. Endomucin expression discriminates BMECs in populations exhibiting mutually exclusive properties and distinct sinusoidal/arterial and tip/stalk signatures. In contrast to arterial-like, sinusoidal-like BMECs are short-lived, form 2D-networks, contribute to in vivo angiogenesis, and support hematopoietic stem/progenitor cells in vitro. This platform can be extended to other organs' ECs to decode mechanistic information and explore therapeutics.
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Affiliation(s)
- Young-Woong Kim
- Department of Stem Cell Biology and Regenerative Medicine, Gehr Family Center for Leukemia Research, Beckman Research Institute, City of Hope, Duarte, CA, 91010, USA.
- Center for Genome Engineering, Institute for Basic Science, Yuseong-gu, Daejeon, 34126, Republic of Korea.
| | - Greta Zara
- Department of Stem Cell Biology and Regenerative Medicine, Gehr Family Center for Leukemia Research, Beckman Research Institute, City of Hope, Duarte, CA, 91010, USA
| | - HyunJun Kang
- Department of Stem Cell Biology and Regenerative Medicine, Gehr Family Center for Leukemia Research, Beckman Research Institute, City of Hope, Duarte, CA, 91010, USA
| | - Sergio Branciamore
- Department of Computational and Quantitative Medicine, Division of Mathematical Oncology, Beckman Research Institute, City of Hope, Duarte, CA, 91010, USA
| | - Denis O'Meally
- Center for Gene Therapy, Beckman Research Institute, City of Hope, Duarte, CA, 91010, USA
| | - Yuxin Feng
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA
| | - Chia-Yi Kuan
- Department of Neuroscience, Center for Brain Immunology and Glia (BIG), University of Virginia School of Medicine, Charlottesville, VA, 22908, USA
| | - Yingjun Luo
- Department of Diabetes Complications and Metabolism, Beckman Research Institute, City of Hope, Duarte, CA, 91010, USA
| | - Michael S Nelson
- Light Microscopy Core, Beckman Research Institute, City of Hope, Duarte, CA, 91010, USA
| | - Alex B Brummer
- Department of Computational and Quantitative Medicine, Division of Mathematical Oncology, Beckman Research Institute, City of Hope, Duarte, CA, 91010, USA
- Department of Physics and Astronomy, College of Charleston, Charleston, SC, 29424, USA
| | - Russell Rockne
- Department of Computational and Quantitative Medicine, Division of Mathematical Oncology, Beckman Research Institute, City of Hope, Duarte, CA, 91010, USA
| | - Zhen Bouman Chen
- Department of Diabetes Complications and Metabolism, Beckman Research Institute, City of Hope, Duarte, CA, 91010, USA
- Irell and Manella Graduate School of Biological Sciences, Duarte, USA
| | - Yi Zheng
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA
| | - Angelo A Cardoso
- Center for Gene Therapy, Beckman Research Institute, City of Hope, Duarte, CA, 91010, USA
- Irell and Manella Graduate School of Biological Sciences, Duarte, USA
| | - Nadia Carlesso
- Department of Stem Cell Biology and Regenerative Medicine, Gehr Family Center for Leukemia Research, Beckman Research Institute, City of Hope, Duarte, CA, 91010, USA.
- Irell and Manella Graduate School of Biological Sciences, Duarte, USA.
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Pomella S, Cassandri M, Phelps D, Perrone C, Pezzella M, Wachtel M, Sunkel B, Cardinale A, Walters Z, Cossetti C, Rodriguez S, Carlesso N, Shipley J, Miele L, Schafer B, Velardi E, Houghton P, Gryder B, Stanton B, Quintarelli C, De Angelis B, Locatelli F, Rota R. Abstract 668: A MYOD-SKP2 axis boosts oncogenic properties of fusion negative rhabdomyosarcoma and is counteracted by neddylation inhibition in vitro and in vivo. Cancer Res 2022. [DOI: 10.1158/1538-7445.am2022-668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Rhabdomyosarcoma (RMS) is a pediatric soft tissue sarcoma characterized by an impaired myogenic differentiation despite the expression of myogenic master genes MYOD and MYOG. Therefore, the restoration of differentiation is considered an anti-cancer therapy. SKP2 is an oncogenic E3-ubiquitin ligase that promotes cell proliferation by targeting the CDKi p21Cip1 and p27Kip1. Previous works showed that SKP2 overexpression is induced by the fusion oncoprotein PAX3-FOXO1 expressed in fusion positive (FP)-RMS cells, and promotes tumor cell proliferation through p27kip1 degradation. However, the role of SKP2 in fusion negative (FN)-RMS cells, devoid of any fusion gene, remains unclear. We report here that SKP2 transcript and protein levels are up-regulated in RMS patients and cell lines compared to normal tissue. Accordingly, we observed increased acetylation of H3K27 histone mark in RMS patients and cell lines compared to myoblasts and muscle tissue. We then show that in RMS cell lines SKP2 expression is induced by MYOD, which binds two SKP2 regulatory regions, an intronic and a distal enhancers, identified by Hi-C and 3C experiments. SKP2 knockdown in FN-RMS cells leads to p21Cip1 and p27Kip1 protein levels up-regulation coupled with G1/S cell cycle arrest. Rescue experiments showed that SKP2 promotes cell proliferation directly targeting p27Kip1. Moreover, SKP2 binds and promotes degradation of p57Kip2 and its silencing restores myogenic differentiation associated to MYOG and de novo MyHC expression in FN-RMS cells. SKP2 depletion also induces cell senescence and prevents anchorage-independent growth and stemness in vitro, and tumor growth in vivo. In turn, SKP2 forced expression partially rescued the anti-cancer effects preventing the increase of p21Cip1, p27Kip1, p57Kip2 and MYOG, promoting re-entry into cell cycle, inhibiting human myoblasts cell differentiation and restoring the tumorigenic potential in FN-RMS. Since neddylation is an essential step for the activity of SKP2, we used MLN4924, an inhibitor of the Nedd8 Activating Enzyme (NAE), under clinical investigation, to resume SKP2 knockdown features. MLN4924 induces p21Cip1 and p27Kip2 expression, promotes senescence and apoptosis, and hampers cell growth in vitro and in vivo both in FP- and FN-RMS. These results unveil an unprecedented role for SKP2 in governing both proliferation and myogenic differentiation in RMS, suggesting that targeting SKP2 functions through MLN4924 treatment might have clinical relevance in FP- and FN-RMS. The study has been founded by AIRC and 5xmille 2021/Ministero della Salute to RR.
Citation Format: Silvia Pomella, Matteo Cassandri, Doris Phelps, Clara Perrone, Michele Pezzella, Marco Wachtel, Benjamin Sunkel, Antonella Cardinale, Zoe Walters, Cristina Cossetti, Sonia Rodriguez, Nadia Carlesso, Janet Shipley, Lucio Miele, Beat Schafer, Enrico Velardi, Peter Houghton, Berkley Gryder, Benjamin Stanton, Concetta Quintarelli, Biagio De Angelis, Franco Locatelli, Rossella Rota. A MYOD-SKP2 axis boosts oncogenic properties of fusion negative rhabdomyosarcoma and is counteracted by neddylation inhibition in vitro and in vivo [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2022; 2022 Apr 8-13. Philadelphia (PA): AACR; Cancer Res 2022;82(12_Suppl):Abstract nr 668.
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Affiliation(s)
| | | | - Doris Phelps
- 2Greehey Children’s Cancer Research Institute, San Antonio, TX
| | - Clara Perrone
- 1Bambino Gesù Children’s Hospital, IRCCS, Roma, Italy
| | | | - Marco Wachtel
- 3University Children's Hospital, Zurigo, Switzerland
| | | | | | - Zoe Walters
- 5University of Southampton, Southampton, United Kingdom
| | | | - Sonia Rodriguez
- 6City of Hope Medical Center and Beckman Research Institute, Duarte, CA
| | - Nadia Carlesso
- 6City of Hope Medical Center and Beckman Research Institute, Duarte, CA
| | - Janet Shipley
- 5University of Southampton, Southampton, United Kingdom
| | - Lucio Miele
- 7Louisiana State University, Stanley S. Scott Cancer Center, New Orleans, LA
| | - Beat Schafer
- 3University Children's Hospital, Zurigo, Switzerland
| | | | - Peter Houghton
- 2Greehey Children’s Cancer Research Institute, San Antonio, TX
| | | | | | | | | | | | - Rossella Rota
- 1Bambino Gesù Children’s Hospital, IRCCS, Roma, Italy
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Brummer AB, Kim YW, Carlesso N, Rockne RC. Abstract 481: Biophysical models of pattern formation in bone marrow endothelial networks. Cancer Res 2022. [DOI: 10.1158/1538-7445.am2022-481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
In this work we aim to understand how cellular aggregation and angiogenic pattern formation develop in bone marrow endothelial networks by integrating spatial-temporal mathematical models with theory regarding how cellular metabolism scales with cell number. Presently, efforts to model angiogenic pattern formation fail to accurately predict spatial characteristics often observed.
Biological allometries, such as the scaling of metabolism to mass or cell number, have been hypothesized to result from natural selection to maximize how vascular networks fill space yet minimize internal transport distances and resistance to motion. Metabolic scaling theory argues that two guiding principles—optimization of motion and space-filling fractal distributions—describe a diversity of biological networks and predict how the geometry of these networks influences organismal metabolism. Recently, metabolic scaling theory has been applied to study tumor growth rates, offering a mechanistic link between tumor growth and vascular patterning.
Remarkably, there exists two classes of spatial-temporal mathematical models where equivalent angiogenic pattern formation occurs. These two classes are determined primarily by either cellular interactions as proposed by Hillen and Painter, or biomechanical forces as proposed by Manoussaki and Murray. Examples of underlying mechanisms are chemotactic quorum-sensing and resource competition for the former, and advection-diffusion driven stresses and strains in the extra-cellular matrix for the latter. We compare these models by examining theoretical predictions for pattern forming criteria with numerical simulations. Furthermore, we identify experimentally testable predictions for angiogenic pattern formation related to the spatial configuration of the extra-cellular matrix. We test these predictions against in vitro confocal microscopy imaging data for bone marrow endothelial networks with experimental control over adhesion molecules and the resulting network structure. Specifically, we measure time-dependent geometric features in the highly reticulated endothelial networks related to steady-state equilibration, connectivity and space-filling. Example metrics are the scaling of network edge lengths and enclosed areas within the extra-cellular matrix that indicate changes to network morphology as adhesion molecules are present or absent. These metrics are informed by metabolic scaling theory and are predicted by the steady-state solutions of the underlying models. By conducting metric and model selection, this work identifies data-driven mechanisms for angiogenic pattern formation and quantifies normality in bone-marrow endothelial networks. This is an essential step for future work in quantifying and understanding abnormality in bone marrow endothelial networks.
Citation Format: Alexander B. Brummer, Young-Woong Kim, Nadia Carlesso, Russell C. Rockne. Biophysical models of pattern formation in bone marrow endothelial networks [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2022; 2022 Apr 8-13. Philadelphia (PA): AACR; Cancer Res 2022;82(12_Suppl):Abstract nr 481.
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Frankhouser DE, O’Meally D, Branciamore S, Uechi L, Zhang L, Chen YC, Li M, Qin H, Wu X, Carlesso N, Marcucci G, Rockne RC, Kuo YH. Dynamic patterns of microRNA expression during acute myeloid leukemia state-transition. Sci Adv 2022; 8:eabj1664. [PMID: 35452289 PMCID: PMC9032952 DOI: 10.1126/sciadv.abj1664] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 03/08/2022] [Indexed: 06/02/2023]
Abstract
MicroRNAs (miRNAs) have been shown to hold prognostic value in acute myeloid leukemia (AML); however, the temporal dynamics of miRNA expression in AML are poorly understood. Using serial samples from a mouse model of AML to generate time-series miRNA sequencing data, we are the first to show that the miRNA transcriptome undergoes state-transition during AML initiation and progression. We modeled AML state-transition as a particle undergoing Brownian motion in a quasi-potential and validated the AML state-space and state-transition model to accurately predict time to AML in an independent cohort of mice. The critical points of the model provided a framework to align samples from mice that developed AML at different rates. Our mathematical approach allowed discovery of dynamic processes involved during AML development and, if translated to humans, has the potential to predict an individual's disease trajectory.
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Affiliation(s)
- David E. Frankhouser
- Department of Population Sciences, City of Hope National Medical Center, Duarte, CA 91010, USA
- Division of Mathematical Oncology, Department of Computational and Quantitative Medicine, City of Hope National Medical Center, Duarte, CA 91010, USA
| | - Denis O’Meally
- Center for Gene Therapy, City of Hope National Medical Center, Duarte, CA 91010, USA
| | - Sergio Branciamore
- Department of Diabetes Complications and Metabolism, City of Hope National Medical Center, Duarte, CA 91010, USA
| | - Lisa Uechi
- Division of Mathematical Oncology, Department of Computational and Quantitative Medicine, City of Hope National Medical Center, Duarte, CA 91010, USA
| | - Lianjun Zhang
- Department of Hematological Malignancies Translational Science, Hematology and Hematopoietic Cell Transplantation, City of Hope National Medical Center, Duarte, CA 91010, USA
- The Gehr Family Center for Leukemia Research, City of Hope National Medical Center, Duarte, CA 91010, USA
| | - Ying-Chieh Chen
- Department of Hematological Malignancies Translational Science, Hematology and Hematopoietic Cell Transplantation, City of Hope National Medical Center, Duarte, CA 91010, USA
- The Gehr Family Center for Leukemia Research, City of Hope National Medical Center, Duarte, CA 91010, USA
| | - Man Li
- Department of Hematological Malignancies Translational Science, Hematology and Hematopoietic Cell Transplantation, City of Hope National Medical Center, Duarte, CA 91010, USA
- The Gehr Family Center for Leukemia Research, City of Hope National Medical Center, Duarte, CA 91010, USA
| | - Hanjun Qin
- Department of Computational and Quantitative Medicine, Integrative Genomics Core, City of Hope National Medical Center, Duarte, CA 91010, USA
| | - Xiwei Wu
- Department of Computational and Quantitative Medicine, Integrative Genomics Core, City of Hope National Medical Center, Duarte, CA 91010, USA
| | - Nadia Carlesso
- The Gehr Family Center for Leukemia Research, City of Hope National Medical Center, Duarte, CA 91010, USA
- Department of Stem Cell and Regenerative Medicine, City of Hope National Medical Center, Duarte, CA 91010, USA
| | - Guido Marcucci
- Department of Hematological Malignancies Translational Science, Hematology and Hematopoietic Cell Transplantation, City of Hope National Medical Center, Duarte, CA 91010, USA
- The Gehr Family Center for Leukemia Research, City of Hope National Medical Center, Duarte, CA 91010, USA
| | - Russell C. Rockne
- Division of Mathematical Oncology, Department of Computational and Quantitative Medicine, City of Hope National Medical Center, Duarte, CA 91010, USA
| | - Ya-Huei Kuo
- Department of Hematological Malignancies Translational Science, Hematology and Hematopoietic Cell Transplantation, City of Hope National Medical Center, Duarte, CA 91010, USA
- The Gehr Family Center for Leukemia Research, City of Hope National Medical Center, Duarte, CA 91010, USA
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Wang H, Sun J, Zhang B, Zhao D, Tong H, Wu H, Li X, Luo Y, Dong D, Yao Y, McDonald T, Stein AS, Al Malki MM, Pichiorri F, Carlesso N, Kuo Y, Marcucci G, Li L, Jin J. Targeting miR-126 disrupts maintenance of myelodysplastic syndrome stem and progenitor cells. Clin Transl Med 2021; 11:e610. [PMID: 34709739 PMCID: PMC8516361 DOI: 10.1002/ctm2.610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 09/23/2021] [Accepted: 09/28/2021] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Myelodysplastic syndrome (MDS) arises from a rare population of aberrant hematopoietic stem and progenitor cells (HSPCs). These cells are relatively quiescent and therefore treatment resistant. Understanding mechanisms underlying their maintenance is critical for effective MDS treatment. METHODS We evaluated microRNA-126 (miR-126) levels in MDS patients' sample and in a NUP98-HOXD13 (NHD13) murine MDS model along with their normal controls and defined its role in MDS HSPCs' maintenance by inhibiting miR-126 expression in vitro and in vivo. Identification of miR-126 effectors was conducted using biotinylated miR-126 pulldown coupled with transcriptome analysis. We also tested the therapeutic activity of our anti-miR-126 oligodeoxynucleotide (miRisten) in human MDS xenografts and murine MDS models. RESULTS miR-126 levels were higher in bone marrow mononuclear cells from MDS patients and NHD13 mice relative to their respective normal controls (P < 0.001). Genetic deletion of miR-126 in NHD13 mice decreased quiescence and self-renewal capacity of MDS HSPCs, and alleviated MDS symptoms of NHD13 mice. Ex vivo exposure to miRisten increased cell cycling, reduced colony-forming capacity, and enhanced apoptosis in human MDS HSPCs, but spared normal human HSPCs. In vivo miRisten administration partially reversed pancytopenia in NHD13 mice and blocked the leukemic transformation (combination group vs DAC group, P < 0.0001). Mechanistically, we identified the non-coding RNA PTTG3P as a novel miR-126 target. Lower PTTG3P levels were associated with a shorter overall survival in MDS patients. CONCLUSIONS MiR-126 plays crucial roles in MDS HSPC maintenance. Therapeutic targeting of miR-126 is a potentially novel approach in MDS.
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Affiliation(s)
- Huafeng Wang
- Department of Hematologythe First Affiliated HospitalSchool of Medicine, Zhejiang UniversityHangzhouZhejiangPR China
- Hematological Malignancies Translational ScienceGehr Family Center for Leukemia ResearchCity of Hope Medical Center and Beckman Research InstituteDuarteCaliforniaUSA
- Zhejiang Provincial Key Lab of Hematopoietic MalignancyZhejiang UniversityHangzhouZhejiangPR China
- Zhejiang Laboratory for Systems & Precision MedicineZhejiang University Medical CenterHangzhouZhejiangPR China
| | - Jie Sun
- Department of Hematologythe First Affiliated HospitalSchool of Medicine, Zhejiang UniversityHangzhouZhejiangPR China
- Hematological Malignancies Translational ScienceGehr Family Center for Leukemia ResearchCity of Hope Medical Center and Beckman Research InstituteDuarteCaliforniaUSA
- Zhejiang Provincial Key Lab of Hematopoietic MalignancyZhejiang UniversityHangzhouZhejiangPR China
| | - Bin Zhang
- Hematological Malignancies Translational ScienceGehr Family Center for Leukemia ResearchCity of Hope Medical Center and Beckman Research InstituteDuarteCaliforniaUSA
| | - Dandan Zhao
- Hematological Malignancies Translational ScienceGehr Family Center for Leukemia ResearchCity of Hope Medical Center and Beckman Research InstituteDuarteCaliforniaUSA
| | - Hongyan Tong
- Department of Hematologythe First Affiliated HospitalSchool of Medicine, Zhejiang UniversityHangzhouZhejiangPR China
- Zhejiang Provincial Key Lab of Hematopoietic MalignancyZhejiang UniversityHangzhouZhejiangPR China
| | - Herman Wu
- Hematological Malignancies Translational ScienceGehr Family Center for Leukemia ResearchCity of Hope Medical Center and Beckman Research InstituteDuarteCaliforniaUSA
| | - Xia Li
- Department of Hematologythe First Affiliated HospitalSchool of Medicine, Zhejiang UniversityHangzhouZhejiangPR China
| | - Yingwan Luo
- Department of Hematologythe First Affiliated HospitalSchool of Medicine, Zhejiang UniversityHangzhouZhejiangPR China
| | - Dan Dong
- Hematological Malignancies Translational ScienceGehr Family Center for Leukemia ResearchCity of Hope Medical Center and Beckman Research InstituteDuarteCaliforniaUSA
| | - Yiyi Yao
- Department of Hematologythe First Affiliated HospitalSchool of Medicine, Zhejiang UniversityHangzhouZhejiangPR China
- Zhejiang Provincial Key Lab of Hematopoietic MalignancyZhejiang UniversityHangzhouZhejiangPR China
| | - Tinisha McDonald
- Hematological Malignancies Translational ScienceGehr Family Center for Leukemia ResearchCity of Hope Medical Center and Beckman Research InstituteDuarteCaliforniaUSA
| | - Anthony S. Stein
- Hematological Malignancies Translational ScienceGehr Family Center for Leukemia ResearchCity of Hope Medical Center and Beckman Research InstituteDuarteCaliforniaUSA
| | - Monzr M. Al Malki
- Hematological Malignancies Translational ScienceGehr Family Center for Leukemia ResearchCity of Hope Medical Center and Beckman Research InstituteDuarteCaliforniaUSA
| | - Flavia Pichiorri
- Hematological Malignancies Translational ScienceGehr Family Center for Leukemia ResearchCity of Hope Medical Center and Beckman Research InstituteDuarteCaliforniaUSA
| | - Nadia Carlesso
- Hematological Malignancies Translational ScienceGehr Family Center for Leukemia ResearchCity of Hope Medical Center and Beckman Research InstituteDuarteCaliforniaUSA
| | - Ya‐Huei Kuo
- Hematological Malignancies Translational ScienceGehr Family Center for Leukemia ResearchCity of Hope Medical Center and Beckman Research InstituteDuarteCaliforniaUSA
| | - Guido Marcucci
- Hematological Malignancies Translational ScienceGehr Family Center for Leukemia ResearchCity of Hope Medical Center and Beckman Research InstituteDuarteCaliforniaUSA
| | - Ling Li
- Hematological Malignancies Translational ScienceGehr Family Center for Leukemia ResearchCity of Hope Medical Center and Beckman Research InstituteDuarteCaliforniaUSA
| | - Jie Jin
- Department of Hematologythe First Affiliated HospitalSchool of Medicine, Zhejiang UniversityHangzhouZhejiangPR China
- Zhejiang Provincial Key Lab of Hematopoietic MalignancyZhejiang UniversityHangzhouZhejiangPR China
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8
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Zhang B, Nguyen LXT, Zhao D, Frankhouser DE, Wang H, Hoang DH, Qiao J, Abundis C, Brehove M, Su YL, Feng Y, Stein A, Ghoda L, Dorrance A, Perrotti D, Chen Z, Han A, Pichiorri F, Jin J, Jovanovic-Talisman T, Caligiuri MA, Kuo CJ, Yoshimura A, Li L, Rockne RC, Kortylewski M, Zheng Y, Carlesso N, Kuo YH, Marcucci G. Treatment-induced arteriolar revascularization and miR-126 enhancement in bone marrow niche protect leukemic stem cells in AML. J Hematol Oncol 2021; 14:122. [PMID: 34372909 PMCID: PMC8351342 DOI: 10.1186/s13045-021-01133-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 07/31/2021] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND During acute myeloid leukemia (AML) growth, the bone marrow (BM) niche acquires significant vascular changes that can be offset by therapeutic blast cytoreduction. The molecular mechanisms of this vascular plasticity remain to be fully elucidated. Herein, we report on the changes that occur in the vascular compartment of the FLT3-ITD+ AML BM niche pre and post treatment and their impact on leukemic stem cells (LSCs). METHODS BM vasculature was evaluated in FLT3-ITD+ AML models (MllPTD/WT/Flt3ITD/ITD mouse and patient-derived xenograft) by 3D confocal imaging of long bones, calvarium vascular permeability assays, and flow cytometry analysis. Cytokine levels were measured by Luminex assay and miR-126 levels evaluated by Q-RT-PCR and miRNA staining. Wild-type (wt) and MllPTD/WT/Flt3ITD/ITD mice with endothelial cell (EC) miR-126 knockout or overexpression served as controls. The impact of treatment-induced BM vascular changes on LSC activity was evaluated by secondary transplantation of BM cells after administration of tyrosine kinase inhibitors (TKIs) to MllPTD/WT/Flt3ITD/ITD mice with/without either EC miR-126 KO or co-treatment with tumor necrosis factor alpha (TNFα) or anti-miR-126 miRisten. RESULTS In the normal BM niche, CD31+Sca-1high ECs lining arterioles have miR-126 levels higher than CD31+Sca-1low ECs lining sinusoids. We noted that during FLT3-ITD+ AML growth, the BM niche lost arterioles and gained sinusoids. These changes were mediated by TNFα, a cytokine produced by AML blasts, which induced EC miR-126 downregulation and caused depletion of CD31+Sca-1high ECs and gain in CD31+Sca-1low ECs. Loss of miR-126high ECs led to a decreased EC miR-126 supply to LSCs, which then entered the cell cycle and promoted leukemia growth. Accordingly, antileukemic treatment with TKI decreased the BM blast-produced TNFα and increased miR-126high ECs and the EC miR-126 supply to LSCs. High miR-126 levels safeguarded LSCs, as shown by more severe disease in secondary transplanted mice. Conversely, EC miR-126 deprivation via genetic or pharmacological EC miR-126 knock-down prevented treatment-induced BM miR-126high EC expansion and in turn LSC protection. CONCLUSIONS Treatment-induced CD31+Sca-1high EC re-vascularization of the leukemic BM niche may represent a LSC extrinsic mechanism of treatment resistance that can be overcome with therapeutic EC miR-126 deprivation.
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Affiliation(s)
- Bin Zhang
- Department of Hematological Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, 1500 E Duarte Road, Duarte, CA, 91010, USA.
| | - Le Xuan Truong Nguyen
- Department of Hematological Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, 1500 E Duarte Road, Duarte, CA, 91010, USA
| | - Dandan Zhao
- Department of Hematological Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, 1500 E Duarte Road, Duarte, CA, 91010, USA
| | | | - Huafeng Wang
- Department of Hematological Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, 1500 E Duarte Road, Duarte, CA, 91010, USA
- Department of Hematology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, People's Republic of China
| | - Dinh Hoa Hoang
- Department of Hematological Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, 1500 E Duarte Road, Duarte, CA, 91010, USA
| | - Junjing Qiao
- Department of Hematological Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, 1500 E Duarte Road, Duarte, CA, 91010, USA
- Department of Pathology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, People's Republic of China
| | - Christina Abundis
- Department of Hematological Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, 1500 E Duarte Road, Duarte, CA, 91010, USA
| | - Matthew Brehove
- Department of Molecular Medicine, City of Hope, Duarte, CA, USA
| | - Yu-Lin Su
- Department of Immuno-Oncology, City of Hope, Duarte, CA, USA
| | - Yuxin Feng
- Division of Experimental Hematology and Cancer Biology, Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Anthony Stein
- Department of Hematological Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, 1500 E Duarte Road, Duarte, CA, 91010, USA
| | - Lucy Ghoda
- Department of Hematological Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, 1500 E Duarte Road, Duarte, CA, 91010, USA
| | | | | | - Zhen Chen
- Department of Diabetes Complications and Metabolism, City of Hope, Duarte, CA, USA
| | - Anjia Han
- Department of Pathology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, People's Republic of China
| | - Flavia Pichiorri
- Department of Hematological Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, 1500 E Duarte Road, Duarte, CA, 91010, USA
| | - Jie Jin
- Department of Hematology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, People's Republic of China
| | | | - Michael A Caligiuri
- Department of Hematological Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, 1500 E Duarte Road, Duarte, CA, 91010, USA
| | - Calvin J Kuo
- Department of Medicine, Division of Hematology, Stanford University, Stanford, CA, USA
| | - Akihiko Yoshimura
- Department of Microbiology and Immunology, Keio University School of Medicine, Tokyo, Japan
| | - Ling Li
- Department of Hematological Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, 1500 E Duarte Road, Duarte, CA, 91010, USA
| | - Russell C Rockne
- Division of Mathematical Oncology, Department of Computational and Quantitative Medicine, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, USA
| | | | - Yi Zheng
- Division of Experimental Hematology and Cancer Biology, Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Nadia Carlesso
- Department of Hematological Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, 1500 E Duarte Road, Duarte, CA, 91010, USA
| | - Ya-Huei Kuo
- Department of Hematological Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, 1500 E Duarte Road, Duarte, CA, 91010, USA
| | - Guido Marcucci
- Department of Hematological Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, 1500 E Duarte Road, Duarte, CA, 91010, USA.
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9
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Nguyen LXT, Zhang B, Hoang DH, Zhao D, Wang H, Wu H, Su YL, Dong H, Rodriguez-Rodriguez S, Armstrong B, Ghoda LY, Perrotti D, Pichiorri F, Chen J, Li L, Kortylewski M, Rockne RC, Kuo YH, Khaled S, Carlesso N, Marcucci G. Cytoplasmic DROSHA and non-canonical mechanisms of MiR-155 biogenesis in FLT3-ITD acute myeloid leukemia. Leukemia 2021; 35:2285-2298. [PMID: 33589748 PMCID: PMC8973317 DOI: 10.1038/s41375-021-01166-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 01/07/2021] [Accepted: 01/26/2021] [Indexed: 01/29/2023]
Abstract
We report here on a novel pro-leukemogenic role of FMS-like tyrosine kinase 3-internal tandem duplication (FLT3-ITD) that interferes with microRNAs (miRNAs) biogenesis in acute myeloid leukemia (AML) blasts. We showed that FLT3-ITD interferes with the canonical biogenesis of intron-hosted miRNAs such as miR-126, by phosphorylating SPRED1 protein and inhibiting the "gatekeeper" Exportin 5 (XPO5)/RAN-GTP complex that regulates the nucleus-to-cytoplasm transport of pre-miRNAs for completion of maturation into mature miRNAs. Of note, despite the blockage of "canonical" miRNA biogenesis, miR-155 remains upregulated in FLT3-ITD+ AML blasts, suggesting activation of alternative mechanisms of miRNA biogenesis that circumvent the XPO5/RAN-GTP blockage. MiR-155, a BIC-155 long noncoding (lnc) RNA-hosted oncogenic miRNA, has previously been implicated in FLT3-ITD+ AML blast hyperproliferation. We showed that FLT3-ITD upregulates miR-155 by inhibiting DDX3X, a protein implicated in the splicing of lncRNAs, via p-AKT. Inhibition of DDX3X increases unspliced BIC-155 that is then shuttled by NXF1 from the nucleus to the cytoplasm, where it is processed into mature miR-155 by cytoplasmic DROSHA, thereby bypassing the XPO5/RAN-GTP blockage via "non-canonical" mechanisms of miRNA biogenesis.
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Affiliation(s)
- Le Xuan Truong Nguyen
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, CA, USA.
| | - Bin Zhang
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, CA, USA
| | - Dinh Hoa Hoang
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, CA, USA
| | - Dandan Zhao
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, CA, USA
| | - Huafeng Wang
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, CA, USA
| | - Herman Wu
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, CA, USA
| | - Yu-Lin Su
- Department of Immuno-Oncology, City of Hope Medical Center, Duarte, CA, USA
| | - Haojie Dong
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, CA, USA
| | - Sonia Rodriguez-Rodriguez
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, CA, USA
| | - Brian Armstrong
- Light Microscopy Core, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, USA
| | - Lucy Y Ghoda
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, CA, USA
| | - Danilo Perrotti
- Department of Medicine, Biochemistry and Molecular Biology and the Marlene and Greenebaum Comprehensive Cancer Center, University of Maryland, Baltimore, MD, USA
| | - Flavia Pichiorri
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, CA, USA
| | - Jianjun Chen
- Department of System Biology, City of Hope Medical Center, Duarte, CA, USA
| | - Ling Li
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, CA, USA
| | - Marcin Kortylewski
- Department of Immuno-Oncology, City of Hope Medical Center, Duarte, CA, USA
| | - Russell C Rockne
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, CA, USA
| | - Ya-Huei Kuo
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, CA, USA
| | - Samer Khaled
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, CA, USA
| | - Nadia Carlesso
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, CA, USA
| | - Guido Marcucci
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, CA, USA.
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Rodriguez-Rodriguez S, Abundis C, Batista A, Cardoso A, Carlesso N. 3124 – TARGETING THE NOTCH/IL-7/SKP2 CIRCUITRY IN T-ALL. Exp Hematol 2020. [DOI: 10.1016/j.exphem.2020.09.133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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11
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Soco C, Carlesso N. 3134 – CHARACTERIZATION OF THE HEMATOPOIETIC STEM CELLS AND BONE MARROW MICROENVIRONMENT IN SICKLE CELL DISEASE PATIENTS. Exp Hematol 2020. [DOI: 10.1016/j.exphem.2020.09.142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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12
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Rockne RC, Branciamore S, Qi J, Frankhouser DE, O'Meally D, Hua WK, Cook G, Carnahan E, Zhang L, Marom A, Wu H, Maestrini D, Wu X, Yuan YC, Liu Z, Wang LD, Forman S, Carlesso N, Kuo YH, Marcucci G. State-Transition Analysis of Time-Sequential Gene Expression Identifies Critical Points That Predict Development of Acute Myeloid Leukemia. Cancer Res 2020; 80:3157-3169. [PMID: 32414754 PMCID: PMC7416495 DOI: 10.1158/0008-5472.can-20-0354] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 04/06/2020] [Accepted: 05/12/2020] [Indexed: 12/13/2022]
Abstract
Temporal dynamics of gene expression inform cellular and molecular perturbations associated with disease development and evolution. Given the complexity of high-dimensional temporal genomic data, an analytic framework guided by a robust theory is needed to interpret time-sequential changes and to predict system dynamics. Here we model temporal dynamics of the transcriptome of peripheral blood mononuclear cells in a two-dimensional state-space representing states of health and leukemia using time-sequential bulk RNA-seq data from a murine model of acute myeloid leukemia (AML). The state-transition model identified critical points that accurately predict AML development and identifies stepwise transcriptomic perturbations that drive leukemia progression. The geometry of the transcriptome state-space provided a biological interpretation of gene dynamics, aligned gene signals that are not synchronized in time across mice, and allowed quantification of gene and pathway contributions to leukemia development. Our state-transition model synthesizes information from multiple cell types in the peripheral blood and identifies critical points in the transition from health to leukemia to guide interpretation of changes in the transcriptome as a whole to predict disease progression. SIGNIFICANCE: These findings apply the theory of state transitions to model the initiation and development of acute myeloid leukemia, identifying transcriptomic perturbations that accurately predict time to disease development.See related commentary by Kuijjer, p. 3072 GRAPHICAL ABSTRACT: http://cancerres.aacrjournals.org/content/canres/80/15/3157/F1.large.jpg.
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Affiliation(s)
- Russell C Rockne
- Division of Mathematical Oncology, Department of Computational and Quantitative Medicine, Beckman Research Institute, City of Hope Medical Center, Duarte, California.
| | - Sergio Branciamore
- Department of Diabetes Complications & Metabolism, Beckman Research Institute, City of Hope Medical Center, Duarte, California
| | - Jing Qi
- Department of Hematological Malignancies Translational Science, Hematology & Hematopoietic Cell Transplantation and the Gehr Family Center for Leukemia Research, Beckman Research Institute, City of Hope Medical Center, Duarte, California
| | - David E Frankhouser
- Department of Diabetes Complications & Metabolism, Beckman Research Institute, City of Hope Medical Center, Duarte, California
- Department of Population Sciences, Beckman Research Institute, City of Hope Medical Center, Duarte, California
| | - Denis O'Meally
- Center for Gene Therapy, Beckman Research Institute, City of Hope Medical Center, Duarte, California
| | - Wei-Kai Hua
- Department of Hematological Malignancies Translational Science, Hematology & Hematopoietic Cell Transplantation and the Gehr Family Center for Leukemia Research, Beckman Research Institute, City of Hope Medical Center, Duarte, California
| | - Guerry Cook
- Department of Hematological Malignancies Translational Science, Hematology & Hematopoietic Cell Transplantation and the Gehr Family Center for Leukemia Research, Beckman Research Institute, City of Hope Medical Center, Duarte, California
| | - Emily Carnahan
- Department of Hematological Malignancies Translational Science, Hematology & Hematopoietic Cell Transplantation and the Gehr Family Center for Leukemia Research, Beckman Research Institute, City of Hope Medical Center, Duarte, California
| | - Lianjun Zhang
- Department of Hematological Malignancies Translational Science, Hematology & Hematopoietic Cell Transplantation and the Gehr Family Center for Leukemia Research, Beckman Research Institute, City of Hope Medical Center, Duarte, California
| | - Ayelet Marom
- Department of Hematological Malignancies Translational Science, Hematology & Hematopoietic Cell Transplantation and the Gehr Family Center for Leukemia Research, Beckman Research Institute, City of Hope Medical Center, Duarte, California
| | - Herman Wu
- Department of Hematological Malignancies Translational Science, Hematology & Hematopoietic Cell Transplantation and the Gehr Family Center for Leukemia Research, Beckman Research Institute, City of Hope Medical Center, Duarte, California
| | - Davide Maestrini
- Division of Mathematical Oncology, Department of Computational and Quantitative Medicine, Beckman Research Institute, City of Hope Medical Center, Duarte, California
| | - Xiwei Wu
- Department of Molecular Medicine; Bioinformatics Core, Beckman Research Institute, City of Hope Medical Center, Duarte, California
| | - Yate-Ching Yuan
- Department of Molecular Medicine; Bioinformatics Core, Beckman Research Institute, City of Hope Medical Center, Duarte, California
| | - Zheng Liu
- Department of Molecular and Cellular Biology; Integrative Genomics Core, Beckman Research Institute, City of Hope Medical Center, Duarte, California
| | - Leo D Wang
- Department of Immuno-Oncology, Beckman Research Institute, City of Hope Medical Center, Duarte, California
- Department of Pediatrics, Beckman Research Institute, City of Hope Medical Center, Duarte, California
| | - Stephen Forman
- Department of Hematological Malignancies Translational Science, Hematology & Hematopoietic Cell Transplantation and the Gehr Family Center for Leukemia Research, Beckman Research Institute, City of Hope Medical Center, Duarte, California
| | - Nadia Carlesso
- Department of Hematological Malignancies Translational Science, Hematology & Hematopoietic Cell Transplantation and the Gehr Family Center for Leukemia Research, Beckman Research Institute, City of Hope Medical Center, Duarte, California
| | - Ya-Huei Kuo
- Department of Hematological Malignancies Translational Science, Hematology & Hematopoietic Cell Transplantation and the Gehr Family Center for Leukemia Research, Beckman Research Institute, City of Hope Medical Center, Duarte, California.
| | - Guido Marcucci
- Department of Hematological Malignancies Translational Science, Hematology & Hematopoietic Cell Transplantation and the Gehr Family Center for Leukemia Research, Beckman Research Institute, City of Hope Medical Center, Duarte, California
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Sempkowski M, Kitagawa Y, Carlesso N. 3132 – IMPACT OF THE INFLAMED BONE MARROW NICHE ON THE PROGRESSION OF MYELOPROLIFERATIVE NEOPLASIA. Exp Hematol 2020. [DOI: 10.1016/j.exphem.2020.09.141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Zara G, Carlesso N, Kato H, Leung A, Schones D, Zhang H, Rodriguez S. 3153 – IMPACT OF SEPSIS ON EPIGENETIC REGULATION OF HEMATOPOIETIC STEM CELLS (HSC). Exp Hematol 2020. [DOI: 10.1016/j.exphem.2020.09.160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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16
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Rodriguez S, Abundis C, Boccalatte F, Mehrotra P, Chiang MY, Yui MA, Wang L, Zhang H, Zollman A, Bonfim-Silva R, Kloetgen A, Palmer J, Sandusky G, Wunderlich M, Kaplan MH, Mulloy JC, Marcucci G, Aifantis I, Cardoso AA, Carlesso N. Therapeutic targeting of the E3 ubiquitin ligase SKP2 in T-ALL. Leukemia 2019; 34:1241-1252. [PMID: 31772299 PMCID: PMC7192844 DOI: 10.1038/s41375-019-0653-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 10/18/2019] [Accepted: 11/13/2019] [Indexed: 12/15/2022]
Abstract
Timed degradation of the cyclin-dependent kinase inhibitor p27Kip1 by the E3 ubiquitin ligase F-box protein SKP2 is critical for T-cell progression into cell cycle, coordinating proliferation and differentiation processes. SKP2 expression is regulated by mitogenic stimuli and by Notch signaling, a key pathway in T-cell development and in T-cell acute lymphoblastic leukemia (T-ALL); however, it is not known whether SKP2 plays a role in the development of T-ALL. Here, we determined that SKP2 function is relevant for T-ALL leukemogenesis, whereas is dispensable for T-cell development. Targeted inhibition of SKP2 by genetic deletion or pharmacological blockade markedly inhibited proliferation of human T-ALL cells in vitro and antagonized disease in vivo in murine and xenograft leukemia models, with little effect on normal tissues. We also demonstrate a novel feed forward feedback loop by which Notch and IL-7 signaling cooperatively converge on SKP2 induction and cell cycle activation. These studies show that the Notch/SKP2/p27Kip1 pathway plays a unique role in T-ALL development and provide a proof-of-concept for the use of SKP2 as a new therapeutic target in T-cell acute lymphoblastic leukemia (T-ALL).
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Affiliation(s)
- Sonia Rodriguez
- Beckman Research Institute, Gehr Leukemia Center, City of Hope, Duarte, CA, 91010, USA.,Herman B Wells Center, Indiana University Simon Cancer Center, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Christina Abundis
- Beckman Research Institute, Gehr Leukemia Center, City of Hope, Duarte, CA, 91010, USA
| | - Francesco Boccalatte
- Department of Pathology and Perlmutter Cancer Center, NYU Langone Medical Center, New York, NY, 10016, USA
| | - Purvi Mehrotra
- Herman B Wells Center, Indiana University Simon Cancer Center, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Mark Y Chiang
- Department of Internal Medicine, University of Michigan School of Medicine, Ann Arbor, MI, 48109, USA
| | - Mary A Yui
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, 91125, USA
| | - Lin Wang
- Herman B Wells Center, Indiana University Simon Cancer Center, Indiana University School of Medicine, Indianapolis, IN, 46202, USA.,Department of Pathology, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Huajia Zhang
- Herman B Wells Center, Indiana University Simon Cancer Center, Indiana University School of Medicine, Indianapolis, IN, 46202, USA.,Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, USA
| | - Amy Zollman
- Herman B Wells Center, Indiana University Simon Cancer Center, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Ricardo Bonfim-Silva
- Herman B Wells Center, Indiana University Simon Cancer Center, Indiana University School of Medicine, Indianapolis, IN, 46202, USA.,Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Riberão Preto, São Paulo, 14049-900, Brazil
| | - Andreas Kloetgen
- Department of Pathology and Perlmutter Cancer Center, NYU Langone Medical Center, New York, NY, 10016, USA
| | - Joycelynne Palmer
- Beckman Research Institute, Gehr Leukemia Center, City of Hope, Duarte, CA, 91010, USA
| | - George Sandusky
- Department of Pathology, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Mark Wunderlich
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA
| | - Mark H Kaplan
- Herman B Wells Center, Indiana University Simon Cancer Center, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - James C Mulloy
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA
| | - Guido Marcucci
- Beckman Research Institute, Gehr Leukemia Center, City of Hope, Duarte, CA, 91010, USA
| | - Iannis Aifantis
- Department of Pathology and Perlmutter Cancer Center, NYU Langone Medical Center, New York, NY, 10016, USA
| | - Angelo A Cardoso
- Beckman Research Institute, Gehr Leukemia Center, City of Hope, Duarte, CA, 91010, USA
| | - Nadia Carlesso
- Beckman Research Institute, Gehr Leukemia Center, City of Hope, Duarte, CA, 91010, USA. .,Herman B Wells Center, Indiana University Simon Cancer Center, Indiana University School of Medicine, Indianapolis, IN, 46202, USA.
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17
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Wang H, Zhao D, Nguyen LX, Wu H, Li L, Dong D, Troadec E, Zhu Y, Hoang DH, Stein AS, Al Malki M, Aldoss I, Lin A, Ghoda LY, McDonald T, Pichiorri F, Carlesso N, Kuo YH, Zhang B, Jin J, Marcucci G. Targeting cell membrane HDM2: A novel therapeutic approach for acute myeloid leukemia. Leukemia 2019; 34:75-86. [PMID: 31337857 DOI: 10.1038/s41375-019-0522-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 04/30/2019] [Accepted: 05/09/2019] [Indexed: 12/14/2022]
Abstract
The E3 ligase human double minute 2 (HDM2) regulates the activity of the tumor suppressor protein p53. A p53-independent HDM2 expression has been reported on the membrane of cancer cells but not on that of normal cells. Herein, we first showed that membrane HDM2 (mHDM2) is exclusively expressed on human and mouse AML blasts, including leukemia stem cell (LSC)-enriched subpopulations, but not on normal hematopoietic stem cells (HSCs). Higher mHDM2 levels in AML blasts were associated with leukemia-initiating capacity, quiescence, and chemoresistance. We also showed that a synthetic peptide PNC-27 binds to mHDM2 and enhances the interaction of mHDM2 and E-cadherin on the cell membrane; in turn, E-cadherin ubiquitination and degradation lead to membrane damage and cell death of AML blasts by necrobiosis. PNC-27 treatment in vivo resulted in a significant killing of both AML "bulk" blasts and LSCs, as demonstrated respectively in primary and secondary transplant experiments, using both human and murine AML models. Notably, PNC-27 spares normal HSC activity, as demonstrated in primary and secondary BM transplant experiments of wild-type mice. We concluded that mHDM2 represents a novel and unique therapeutic target, and targeting mHDM2 using PNC-27 selectively kills AML cells, including LSCs, with minimal off-target hematopoietic toxicity.
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Affiliation(s)
- Huafeng Wang
- Department of Hematology, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, PR China.,Hematologic Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, Duarte, CA, USA.,Zhejiang Provincial Key Lab of Hematopoietic Malignancy, Zhejiang University, Hangzhou, Zhejiang, PR China
| | - Dandan Zhao
- Hematologic Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, Duarte, CA, USA
| | - Le Xuan Nguyen
- Hematologic Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, Duarte, CA, USA.,Department of Medical Biotechnology, Biotechnology Center of Ho Chi Minh City, Ho Chi Minh, Vietnam
| | - Herman Wu
- Hematologic Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, Duarte, CA, USA
| | - Ling Li
- Hematologic Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, Duarte, CA, USA
| | - Dan Dong
- Hematologic Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, Duarte, CA, USA.,Department of Pathophysiology, College of Basic Medical Science, China Medical University, Shenyang, PR China
| | - Estelle Troadec
- Hematologic Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, Duarte, CA, USA
| | - Yinghui Zhu
- Hematologic Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, Duarte, CA, USA
| | - Dinh Hoa Hoang
- Hematologic Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, Duarte, CA, USA
| | - Anthony S Stein
- Hematologic Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, Duarte, CA, USA
| | - Monzr Al Malki
- Hematologic Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, Duarte, CA, USA
| | - Ibrahim Aldoss
- Hematologic Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, Duarte, CA, USA
| | - Allen Lin
- Hematologic Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, Duarte, CA, USA
| | - Lucy Y Ghoda
- Hematologic Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, Duarte, CA, USA
| | - Tinisha McDonald
- Hematologic Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, Duarte, CA, USA
| | - Flavia Pichiorri
- Hematologic Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, Duarte, CA, USA
| | - Nadia Carlesso
- Hematologic Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, Duarte, CA, USA
| | - Ya-Huei Kuo
- Hematologic Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, Duarte, CA, USA
| | - Bin Zhang
- Hematologic Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, Duarte, CA, USA.
| | - Jie Jin
- Department of Hematology, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, PR China. .,Zhejiang Provincial Key Lab of Hematopoietic Malignancy, Zhejiang University, Hangzhou, Zhejiang, PR China.
| | - Guido Marcucci
- Hematologic Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, Duarte, CA, USA.
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18
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Kim YW, Sempkowski M, Soco C, Zollman A, Wang L, Branciamore S, Marcucci G, Rockne R, Rodriguez S, Carlesso N. Defective Notch Activation in Mesenchymal Cells Accelerates the Aging of the Bone Marrow Niche and Favor Hematopoietic Malignancies. Exp Hematol 2018. [DOI: 10.1016/j.exphem.2018.06.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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19
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Rockne R, Branciamore S, Qi J, Zhang L, Hua WK, Brewer C, Nguyen LX, Zhang B, Cook G, Carnahan E, Wu D, Ramirez M, Li M, Marmon A, Wu H, Maestrini D, Wu X, OMeally D, Yuan YC, Carlesso N, Forman S, Marcucci G, Kuo YH. A Mathematical Model of Mirna Dynamics Predicts State Transition and Identifies Mirna-126 as an Onco-Mir Promoting Acute Myeloid Leukemia Driven by CBFB-MYH11. Exp Hematol 2018. [DOI: 10.1016/j.exphem.2018.06.266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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20
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Maestrini D, Abler D, Adhikarla V, Armenian S, Branciamore S, Carlesso N, Kuo YH, Marcucci G, Sahoo P, Rockne RC. Aging in a Relativistic Biological Space-Time. Front Cell Dev Biol 2018; 6:55. [PMID: 29896473 PMCID: PMC5986934 DOI: 10.3389/fcell.2018.00055] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Accepted: 04/26/2018] [Indexed: 12/11/2022] Open
Abstract
Here we present a theoretical and mathematical perspective on the process of aging. We extend the concepts of physical space and time to an abstract, mathematically-defined space, which we associate with a concept of “biological space-time” in which biological dynamics may be represented. We hypothesize that biological dynamics, represented as trajectories in biological space-time, may be used to model and study different rates of biological aging. As a consequence of this hypothesis, we show how dilation or contraction of time analogous to relativistic corrections of physical time resulting from accelerated or decelerated biological dynamics may be used to study precipitous or protracted aging. We show specific examples of how these principles may be used to model different rates of aging, with an emphasis on cancer in aging. We discuss how this theory may be tested or falsified, as well as novel concepts and implications of this theory that may improve our interpretation of biological aging.
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Affiliation(s)
- Davide Maestrini
- Division of Mathematical Oncology, City of Hope, National Medical Center, Duarte, CA, United States
| | - Daniel Abler
- Division of Mathematical Oncology, City of Hope, National Medical Center, Duarte, CA, United States
| | - Vikram Adhikarla
- Division of Mathematical Oncology, City of Hope, National Medical Center, Duarte, CA, United States
| | - Saro Armenian
- Department of Pediatrics, City of Hope, National Medical Center, Duarte, CA, United States.,Department of Population Sciences, City of Hope, National Medical Center, Duarte, CA, United States
| | - Sergio Branciamore
- Division of Mathematical Oncology, City of Hope, National Medical Center, Duarte, CA, United States.,Department of Diabetes Complications and Metabolism, City of Hope, National Medical Center, Duarte, CA, United States
| | - Nadia Carlesso
- Department of Hematologic Malignancies Translational Science, City of Hope, National Medical Center, Duarte, CA, United States.,City of Hope, National Medical Center, Gehr Family Center for Leukemia Research, Duarte, CA, United States
| | - Ya-Huei Kuo
- Department of Hematologic Malignancies Translational Science, City of Hope, National Medical Center, Duarte, CA, United States.,City of Hope, National Medical Center, Gehr Family Center for Leukemia Research, Duarte, CA, United States
| | - Guido Marcucci
- Department of Hematologic Malignancies Translational Science, City of Hope, National Medical Center, Duarte, CA, United States.,City of Hope, National Medical Center, Gehr Family Center for Leukemia Research, Duarte, CA, United States
| | - Prativa Sahoo
- Division of Mathematical Oncology, City of Hope, National Medical Center, Duarte, CA, United States
| | - Russell C Rockne
- Division of Mathematical Oncology, City of Hope, National Medical Center, Duarte, CA, United States
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21
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Zhang B, Nguyen LXT, Li L, Zhao D, Kumar B, Wu H, Lin A, Pellicano F, Hopcroft L, Su YL, Copland M, Holyoake TL, Kuo CJ, Bhatia R, Snyder DS, Ali H, Stein AS, Brewer C, Wang H, McDonald T, Swiderski P, Troadec E, Chen CC, Dorrance A, Pullarkat V, Yuan YC, Perrotti D, Carlesso N, Forman SJ, Kortylewski M, Kuo YH, Marcucci G. Bone marrow niche trafficking of miR-126 controls the self-renewal of leukemia stem cells in chronic myelogenous leukemia. Nat Med 2018; 24:450-462. [PMID: 29505034 PMCID: PMC5965294 DOI: 10.1038/nm.4499] [Citation(s) in RCA: 100] [Impact Index Per Article: 16.7] [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: 07/18/2016] [Accepted: 01/22/2018] [Indexed: 12/16/2022]
Abstract
Leukemia stem cells (LSCs) in individuals with chronic myelogenous leukemia (CML) (hereafter referred to as CML LSCs) are responsible for initiating and maintaining clonal hematopoiesis. These cells persist in the bone marrow (BM) despite effective inhibition of BCR-ABL kinase activity by tyrosine kinase inhibitors (TKIs). Here we show that although the microRNA (miRNA) miR-126 supported the quiescence, self-renewal and engraftment capacity of CML LSCs, miR-126 levels were lower in CML LSCs than in long-term hematopoietic stem cells (LT-HSCs) from healthy individuals. Downregulation of miR-126 levels in CML LSCs was due to phosphorylation of Sprouty-related EVH1-domain-containing 1 (SPRED1) by BCR-ABL, which led to inhibition of the RAN-exportin-5-RCC1 complex that mediates miRNA maturation. Endothelial cells (ECs) in the BM supply miR-126 to CML LSCs to support quiescence and leukemia growth, as shown using mouse models of CML in which Mir126a (encoding miR-126) was conditionally knocked out in ECs and/or LSCs. Inhibition of BCR-ABL by TKI treatment caused an undesired increase in endogenous miR-126 levels, which enhanced LSC quiescence and persistence. Mir126a knockout in LSCs and/or ECs, or treatment with a miR-126 inhibitor that targets miR-126 expression in both LSCs and ECs, enhanced the in vivo anti-leukemic effects of TKI treatment and strongly diminished LSC leukemia-initiating capacity, providing a new strategy for the elimination of LSCs in individuals with CML.
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Affiliation(s)
- Bin Zhang
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, California, USA
| | - Le Xuan Truong Nguyen
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, California, USA.,Department of Medical Biotechnology, Biotechnology Center of Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Ling Li
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, California, USA
| | - Dandan Zhao
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, California, USA
| | - Bijender Kumar
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, California, USA
| | - Herman Wu
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, California, USA
| | - Allen Lin
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, California, USA
| | - Francesca Pellicano
- Paul O' Gorman Leukemia Research Centre, College of Medical, Veterinary and Life Sciences, Institute of Cancer Sciences, University of Glasgow, Glasgow, UK
| | - Lisa Hopcroft
- Paul O' Gorman Leukemia Research Centre, College of Medical, Veterinary and Life Sciences, Institute of Cancer Sciences, University of Glasgow, Glasgow, UK
| | - Yu-Lin Su
- Department of Immuno-oncology, City of Hope Medical Center, Duarte, California, USA
| | - Mhairi Copland
- Paul O' Gorman Leukemia Research Centre, College of Medical, Veterinary and Life Sciences, Institute of Cancer Sciences, University of Glasgow, Glasgow, UK
| | - Tessa L Holyoake
- Paul O' Gorman Leukemia Research Centre, College of Medical, Veterinary and Life Sciences, Institute of Cancer Sciences, University of Glasgow, Glasgow, UK
| | - Calvin J Kuo
- Stanford University School of Medicine, Stanford, California, USA
| | - Ravi Bhatia
- University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - David S Snyder
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, California, USA
| | - Haris Ali
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, California, USA
| | - Anthony S Stein
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, California, USA
| | - Casey Brewer
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, California, USA
| | - Huafeng Wang
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, California, USA.,Department of Hematology, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Tinisha McDonald
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, California, USA
| | - Piotr Swiderski
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, California, USA
| | - Estelle Troadec
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, California, USA
| | - Ching-Cheng Chen
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, California, USA
| | - Adrienne Dorrance
- Division of Hematology, Department of Internal Medicine, Ohio State University, Columbus, Ohio, USA
| | - Vinod Pullarkat
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, California, USA
| | - Yate-Ching Yuan
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, California, USA
| | - Danilo Perrotti
- Department of Medicine, Biochemistry and Molecular Biology and the Marlene and Stewart Greenebaum Comprehensive Cancer Center, University of Maryland School of Medicine Baltimore, Baltimore, Maryland, USA.,Deparment of Hematology, Hammersmith Hospital, Imperial College London, London, UK
| | - Nadia Carlesso
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, California, USA
| | - Stephen J Forman
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, California, USA
| | - Marcin Kortylewski
- Department of Immuno-oncology, City of Hope Medical Center, Duarte, California, USA
| | - Ya-Huei Kuo
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, California, USA
| | - Guido Marcucci
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, California, USA
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22
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Singh P, Hoggatt J, Kamocka MM, Mohammad KS, Saunders MR, Li H, Speth J, Carlesso N, Guise TA, Pelus LM. Neuropeptide Y regulates a vascular gateway for hematopoietic stem and progenitor cells. J Clin Invest 2017; 127:4527-4540. [PMID: 29130940 DOI: 10.1172/jci94687] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [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: 04/20/2017] [Accepted: 09/12/2017] [Indexed: 12/11/2022] Open
Abstract
Endothelial cells (ECs) are components of the hematopoietic microenvironment and regulate hematopoietic stem and progenitor cell (HSPC) homeostasis. Cytokine treatments that cause HSPC trafficking to peripheral blood are associated with an increase in dipeptidylpeptidase 4/CD26 (DPP4/CD26), an enzyme that truncates the neurotransmitter neuropeptide Y (NPY). Here, we show that enzymatically altered NPY signaling in ECs caused reduced VE-cadherin and CD31 expression along EC junctions, resulting in increased vascular permeability and HSPC egress. Moreover, selective NPY2 and NPY5 receptor antagonists restored vascular integrity and limited HSPC mobilization, demonstrating that the enzymatically controlled vascular gateway specifically opens by cleavage of NPY by CD26 signaling via NPY2 and NPY5 receptors. Mice lacking CD26 or NPY exhibited impaired HSPC trafficking that was restored by treatment with truncated NPY. Thus, our results point to ECs as gatekeepers of HSPC trafficking and identify a CD26-mediated NPY axis that has potential as a pharmacologic target to regulate hematopoietic trafficking in homeostatic and stress conditions.
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Affiliation(s)
- Pratibha Singh
- Department of Microbiology & Immunology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Jonathan Hoggatt
- Department of Microbiology & Immunology, Indiana University School of Medicine, Indianapolis, Indiana, USA.,Cancer Center and Center for Transplantation Sciences, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | | | | | - Mary R Saunders
- Department of Microbiology & Immunology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Hongge Li
- Department of Microbiology & Immunology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Jennifer Speth
- Department of Microbiology & Immunology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Nadia Carlesso
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana, USA.,Department of Hematologic Malignancies Translational Science, Beckman Research Institute of City of Hope, Duarte, California, USA
| | | | - Louis M Pelus
- Department of Microbiology & Immunology, Indiana University School of Medicine, Indianapolis, Indiana, USA
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23
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Wang L, Kamocka MM, Zollman A, Carlesso N. Combining Intravital Fluorescent Microscopy (IVFM) with Genetic Models to Study Engraftment Dynamics of Hematopoietic Cells to Bone Marrow Niches. J Vis Exp 2017. [PMID: 28362378 DOI: 10.3791/54253] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Increasing evidence indicates that normal hematopoiesis is regulated by distinct microenvironmental cues in the BM, which include specialized cellular niches modulating critical hematopoietic stem cell (HSC) functions1,2. Indeed, a more detailed picture of the hematopoietic microenvironment is now emerging, in which the endosteal and the endothelial niches form functional units for the regulation of normal HSC and their progeny3,4,5. New studies have revealed the importance of perivascular cells, adipocytes and neuronal cells in maintaining and regulating HSC function6,7,8. Furthermore, there is evidence that cells from different lineages, i.e. myeloid and lymphoid cells, home and reside in specific niches within the BM microenvironment. However, a complete mapping of the BM microenvironment and its occupants is still in progress. Transgenic mouse strains expressing lineage specific fluorescent markers or mice genetically engineered to lack selected molecules in specific cells of the BM niche are now available. Knock-out and lineage tracking models, in combination with transplantation approaches, provide the opportunity to refine the knowledge on the role of specific "niche" cells for defined hematopoietic populations, such as HSC, B-cells, T-cells, myeloid cells and erythroid cells. This strategy can be further potentiated by merging the use of two-photon microscopy of the calvarium. By providing in vivo high resolution imaging and 3-D rendering of the BM calvarium, we can now determine precisely the location where specific hematopoietic subsets home in the BM and evaluate the kinetics of their expansion over time. Here, Lys-GFP transgenic mice (marking myeloid cells)9 and RBPJ knock-out mice (lacking canonical Notch signaling)10 are used in combination with IVFM to determine the engraftment of myeloid cells to a Notch defective BM microenvironment.
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Affiliation(s)
- Lin Wang
- Wells Center for Pediatric Research, Department of Pediatrics, Indiana University School of Medicine
| | - Malgorzata M Kamocka
- Indiana Center for Biological Microscopy, Department of Medicine, Indiana University School of Medicine
| | - Amy Zollman
- Department of Pediatrics, Indiana University School of Medicine
| | - Nadia Carlesso
- Department of Pediatrics, Indiana University School of Medicine;
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24
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Kobayashi M, Nabinger SC, Bai Y, Yoshimoto M, Gao R, Chen S, Yao C, Dong Y, Zhang L, Rodriguez S, Yashiro-Ohtani Y, Pear WS, Carlesso N, Yoder MC, Kapur R, Kaplan MH, Daniel Lacorazza H, Zhang ZY, Liu Y. Protein Tyrosine Phosphatase PRL2 Mediates Notch and Kit Signals in Early T Cell Progenitors. Stem Cells 2017; 35:1053-1064. [PMID: 28009085 DOI: 10.1002/stem.2559] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [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: 05/16/2016] [Revised: 11/23/2016] [Accepted: 12/08/2016] [Indexed: 01/18/2023]
Abstract
The molecular pathways regulating lymphoid priming, fate, and development of multipotent bone marrow hematopoietic stem and progenitor cells (HSPCs) that continuously feed thymic progenitors remain largely unknown. While Notch signal is indispensable for T cell specification and differentiation, the downstream effectors are not well understood. PRL2, a protein tyrosine phosphatase that regulates hematopoietic stem cell proliferation and self-renewal, is highly expressed in murine thymocyte progenitors. Here we demonstrate that protein tyrosine phosphatase PRL2 and receptor tyrosine kinase c-Kit are critical downstream targets and effectors of the canonical Notch/RBPJ pathway in early T cell progenitors. While PRL2 deficiency resulted in moderate defects of thymopoiesis in the steady state, de novo generation of T cells from Prl2 null hematopoietic stem cells was significantly reduced following transplantation. Prl2 null HSPCs also showed impaired T cell differentiation in vitro. We found that Notch/RBPJ signaling upregulated PRL2 as well as c-Kit expression in T cell progenitors. Further, PRL2 sustains Notch-mediated c-Kit expression and enhances stem cell factor/c-Kit signaling in T cell progenitors, promoting effective DN1-DN2 transition. Thus, we have identified a critical role for PRL2 phosphatase in mediating Notch and c-Kit signals in early T cell progenitors. Stem Cells 2017;35:1053-1064.
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Affiliation(s)
| | - Sarah C Nabinger
- Department of Pediatrics, Herman B Wells Center for Pediatric Research
| | - Yunpeng Bai
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Momoko Yoshimoto
- Department of Pediatrics, Herman B Wells Center for Pediatric Research
| | - Rui Gao
- Department of Pediatrics, Herman B Wells Center for Pediatric Research
| | - Sisi Chen
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Chonghua Yao
- Department of Pediatrics, Herman B Wells Center for Pediatric Research
| | - Yuanshu Dong
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Lujuan Zhang
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Sonia Rodriguez
- Department of Pediatrics, Herman B Wells Center for Pediatric Research
| | - Yumi Yashiro-Ohtani
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Warren S Pear
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Nadia Carlesso
- Department of Pediatrics, Herman B Wells Center for Pediatric Research
| | - Mervin C Yoder
- Department of Pediatrics, Herman B Wells Center for Pediatric Research
| | - Reuben Kapur
- Department of Pediatrics, Herman B Wells Center for Pediatric Research
| | - Mark H Kaplan
- Department of Pediatrics, Herman B Wells Center for Pediatric Research
| | - Hugo Daniel Lacorazza
- Department of Pathology, Baylor College of Medicine, Texas Children's Hospital, Houston, Texas, USA
| | - Zhong-Yin Zhang
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, West Lafayette, Indiana, USA
| | - Yan Liu
- Department of Pediatrics, Herman B Wells Center for Pediatric Research.,Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, Indiana, USA
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Zhang H, Zhang H, Rodriguez S, Wang L, Serezani H, Cardoso A, Carlesso N. Distinct contribution of the TLR4 MYD88- and TRIF-dependent pathway to HSC and progenitor dysfunction during acute inflammation. Exp Hematol 2016. [DOI: 10.1016/j.exphem.2016.06.244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Ghosh J, Kobayashi M, Ramdas B, Chatterjee A, Ma P, Mali RS, Carlesso N, Liu Y, Plas DR, Chan RJ, Kapur R. S6K1 regulates hematopoietic stem cell self-renewal and leukemia maintenance. J Clin Invest 2016; 126:2621-5. [PMID: 27294524 DOI: 10.1172/jci84565] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Accepted: 04/27/2016] [Indexed: 01/03/2023] Open
Abstract
Hyperactivation of the mTOR pathway impairs hematopoietic stem cell (HSC) functions and promotes leukemogenesis. mTORC1 and mTORC2 differentially control normal and leukemic stem cell functions. mTORC1 regulates p70 ribosomal protein S6 kinase 1 (S6K1) and eukaryotic initiation factor 4E-binding (eIF4E-binding) protein 1 (4E-BP1), and mTORC2 modulates AKT activation. Given the extensive crosstalk that occurs between mTORC1 and mTORC2 signaling pathways, we assessed the role of the mTORC1 substrate S6K1 in the regulation of both normal HSC functions and in leukemogenesis driven by the mixed lineage leukemia (MLL) fusion oncogene MLL-AF9. We demonstrated that S6K1 deficiency impairs self-renewal of murine HSCs by reducing p21 expression. Loss of S6K1 also improved survival in mice transplanted with MLL-AF9-positive leukemic stem cells by modulating AKT and 4E-BP1 phosphorylation. Taken together, these results suggest that S6K1 acts through multiple targets of the mTOR pathway to promote self-renewal and leukemia progression. Given the recent interest in S6K1 as a potential therapeutic target in cancer, our results further support targeting this molecule as a potential strategy for treatment of myeloid malignancies.
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Zhang H, Rodriguez S, Wang L, Wang S, Serezani H, Kapur R, Cardoso AA, Carlesso N. Sepsis Induces Hematopoietic Stem Cell Exhaustion and Myelosuppression through Distinct Contributions of TRIF and MYD88. Stem Cell Reports 2016; 6:940-956. [PMID: 27264973 PMCID: PMC4911503 DOI: 10.1016/j.stemcr.2016.05.002] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2015] [Revised: 05/06/2016] [Accepted: 05/08/2016] [Indexed: 12/29/2022] Open
Abstract
Toll-like receptor 4 (TLR4) plays a central role in host responses to bacterial infection, but the precise mechanism(s) by which its downstream signaling components coordinate the bone marrow response to sepsis is poorly understood. Using mice deficient in TLR4 downstream adapters MYD88 or TRIF, we demonstrate that both cell-autonomous and non-cell-autonomous MYD88 activation are major causes of myelosuppression during sepsis, while having a modest impact on hematopoietic stem cell (HSC) functions. In contrast, cell-intrinsic TRIF activation severely compromises HSC self-renewal without directly affecting myeloid cells. Lipopolysaccharide-induced activation of MYD88 or TRIF contributes to cell-cycle activation of HSC and induces rapid and permanent changes in transcriptional programs, as indicated by persistent downregulation of Spi1 and CebpA expression after transplantation. Thus, distinct mechanisms downstream of TLR4 signaling mediate myelosuppression and HSC exhaustion during sepsis through unique effects of MyD88 and TRIF. Activation of TLR4 by LPS causes HSC injury, myelosuppression, and neutropenia LPS-induced MYD88 activation leads to apoptosis and myelosuppression LPS causes HSC damage and exhaustion by TRIF activation HSC retain long-term memory of LPS injury
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Affiliation(s)
- Huajia Zhang
- Department of Medical and Molecular Genetics, School of Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, USA; Herman B Wells Center for Pediatric Research, School of Medicine, Indiana University School of Medicine, 1044 West Walnut, Indianapolis, IN 46202, USA
| | - Sonia Rodriguez
- Herman B Wells Center for Pediatric Research, School of Medicine, Indiana University School of Medicine, 1044 West Walnut, Indianapolis, IN 46202, USA
| | - Lin Wang
- Herman B Wells Center for Pediatric Research, School of Medicine, Indiana University School of Medicine, 1044 West Walnut, Indianapolis, IN 46202, USA
| | - Soujuan Wang
- Department of Microbiology, School of Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Henrique Serezani
- Department of Microbiology, School of Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Reuben Kapur
- Herman B Wells Center for Pediatric Research, School of Medicine, Indiana University School of Medicine, 1044 West Walnut, Indianapolis, IN 46202, USA
| | - Angelo A Cardoso
- Herman B Wells Center for Pediatric Research, School of Medicine, Indiana University School of Medicine, 1044 West Walnut, Indianapolis, IN 46202, USA
| | - Nadia Carlesso
- Department of Medical and Molecular Genetics, School of Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, USA; Herman B Wells Center for Pediatric Research, School of Medicine, Indiana University School of Medicine, 1044 West Walnut, Indianapolis, IN 46202, USA.
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28
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Delgado-Calle J, Anderson J, Cregor MD, Hiasa M, Chirgwin JM, Carlesso N, Yoneda T, Mohammad KS, Plotkin LI, Roodman GD, Bellido T. Bidirectional Notch Signaling and Osteocyte-Derived Factors in the Bone Marrow Microenvironment Promote Tumor Cell Proliferation and Bone Destruction in Multiple Myeloma. Cancer Res 2016; 76:1089-100. [PMID: 26833121 DOI: 10.1158/0008-5472.can-15-1703] [Citation(s) in RCA: 140] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Accepted: 12/14/2015] [Indexed: 01/24/2023]
Abstract
In multiple myeloma, an overabundance of monoclonal plasma cells in the bone marrow induces localized osteolytic lesions that rarely heal due to increased bone resorption and suppressed bone formation. Matrix-embedded osteocytes comprise more than 95% of bone cells and are major regulators of osteoclast and osteoblast activity, but their contribution to multiple myeloma growth and bone disease is unknown. Here, we report that osteocytes in a mouse model of human MM physically interact with multiple myeloma cells in vivo, undergo caspase-3-dependent apoptosis, and express higher RANKL (TNFSF11) and sclerostin levels than osteocytes in control mice. Mechanistic studies revealed that osteocyte apoptosis was initiated by multiple myeloma cell-mediated activation of Notch signaling and was further amplified by multiple myeloma cell-secreted TNF. The induction of apoptosis increased osteocytic Rankl expression, the osteocytic Rankl/Opg (TNFRSF11B) ratio, and the ability of osteocytes to attract osteoclast precursors to induce local bone resorption. Furthermore, osteocytes in contact with multiple myeloma cells expressed high levels of Sost/sclerostin, leading to a reduction in Wnt signaling and subsequent inhibition of osteoblast differentiation. Importantly, direct contact between osteocytes and multiple myeloma cells reciprocally activated Notch signaling and increased Notch receptor expression, particularly Notch3 and 4, stimulating multiple myeloma cell growth. These studies reveal a previously unknown role for bidirectional Notch signaling that enhances MM growth and bone disease, suggesting that targeting osteocyte-multiple myeloma cell interactions through specific Notch receptor blockade may represent a promising treatment strategy in multiple myeloma.
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Affiliation(s)
- Jesus Delgado-Calle
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, Indiana. Roudebush Veterans Administration Medical Center, Indianapolis, Indiana
| | - Judith Anderson
- Division of Hematology/Oncology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Meloney D Cregor
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Masahiro Hiasa
- Division of Hematology/Oncology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - John M Chirgwin
- Roudebush Veterans Administration Medical Center, Indianapolis, Indiana. Division of Endocrinology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Nadia Carlesso
- Department of Pediatrics Indiana, University School of Medicine, Indianapolis, Indiana
| | - Toshiyuki Yoneda
- Division of Hematology/Oncology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Khalid S Mohammad
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, Indiana. Division of Endocrinology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Lilian I Plotkin
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, Indiana. Roudebush Veterans Administration Medical Center, Indianapolis, Indiana
| | - G David Roodman
- Roudebush Veterans Administration Medical Center, Indianapolis, Indiana. Division of Hematology/Oncology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana.
| | - Teresita Bellido
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, Indiana. Roudebush Veterans Administration Medical Center, Indianapolis, Indiana. Division of Endocrinology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana.
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29
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Rota R, Adesso L, Conti B, Ciarapica R, De Raimondi L, Salvo M, Rodriguez S, Carlesso N, Miele L, Locatelli F. Abstract 3792: SKP2 supports cell proliferation and is regulated by Notch signaling in myoblasts and embryonal rhabdomyosarcoma. Cancer Res 2015. [DOI: 10.1158/1538-7445.am2015-3792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background:
Rhabdomyosarcoma (RMS) in a pediatric tumor of myogenic origin. It includes two subtypes: embryonal and alveolar. Embryonal RMS (ERMS) cells express key myogenic factors such as MyoD and Myogenin, but proliferate indefinitely and have lost the ability to terminally differentiate into skeletal myofibers. Differently from the alveolar tumors bearing specific chromosomal translocations, ERMS has cytogenetic aberrations and molecular deregulations of pathways regulating senescence, proliferation and differentiation. It has been shown that SKP2, an F-box protein and a component of the ubiquitin protein ligase complex SCFs (SKP1-cullin-F-box), is over-expressed in RMS primary samples and correlates with a dismal outcome. Therefore, we sought here to investigate the regulation of SKP2 and its role in ERMS.
Methods:
We modulated SKP2 expression through silencing, by using a siRNA validated in the literature, and forcing its expression through retroviral infection. In parallel, we investigate the effect of Notch signaling modulation on SKP2 expression.
Results:
SKP2 silencing resulted in cell cycle slowdown in both normal myoblasts and ERMS cells. Down-regulation of Notch1 led to SKP2 reduction while that of Notch3 supported SKP2 expression. Cosilencing SKP2 and Notch3 gave raise to myoblast-like structure formation in ERMS and facilitated myoblasts fusion. Finally, using a SKP2 inhibitor ERMS cell proliferation was completely blocked.
Conclusion:
Altogether, these preliminary experiments suggest that SKP2 could be regulated by Notch signaling in ERMS and that its inhibition hampers tumor cell proliferative capability.
Note: This abstract was not presented at the meeting.
Citation Format: Rossella Rota, Laura Adesso, Beatrice Conti, Roberta Ciarapica, Lavinia Raimondi, Maria De Salvo, Sonia Rodriguez, Nadia Carlesso, Lucio Miele, Franco Locatelli. SKP2 supports cell proliferation and is regulated by Notch signaling in myoblasts and embryonal rhabdomyosarcoma. [abstract]. In: Proceedings of the 106th Annual Meeting of the American Association for Cancer Research; 2015 Apr 18-22; Philadelphia, PA. Philadelphia (PA): AACR; Cancer Res 2015;75(15 Suppl):Abstract nr 3792. doi:10.1158/1538-7445.AM2015-3792
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Affiliation(s)
| | | | | | | | | | - Maria Salvo
- 1Ospedale Pediatrico Bambino Gesù, Roma, Italy
| | | | - Nadia Carlesso
- 2Indiana University School of Medicine, Indianapolis, IN
| | - Lucio Miele
- 3Stanley Scott Cancer Center, Louisiana State University Health Sciences Center and Louisiana Cancer Research Consortium, New Orleans, LA
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30
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Wang L, Zhang H, Rodriguez S, Cao L, Parish J, Mumaw C, Zollman A, Kamoka MM, Mu J, Chen DZ, Srour EF, Chitteti BR, HogenEsch H, Tu X, Bellido TM, Boswell HS, Manshouri T, Verstovsek S, Yoder MC, Kapur R, Cardoso AA, Carlesso N. Notch-dependent repression of miR-155 in the bone marrow niche regulates hematopoiesis in an NF-κB-dependent manner. Cell Stem Cell 2015; 15:51-65. [PMID: 24996169 DOI: 10.1016/j.stem.2014.04.021] [Citation(s) in RCA: 128] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2013] [Revised: 03/26/2014] [Accepted: 04/28/2014] [Indexed: 10/25/2022]
Abstract
The microRNA miR-155 has been implicated in regulating inflammatory responses and tumorigenesis, but its precise role in linking inflammation and cancer has remained elusive. Here, we identify a connection between miR-155 and Notch signaling in this context. Loss of Notch signaling in the bone marrow (BM) niche alters hematopoietic homeostasis and leads to lethal myeloproliferative-like disease. Mechanistically, Notch signaling represses miR-155 expression by promoting binding of RBPJ to the miR-155 promoter. Loss of Notch/RBPJ signaling upregulates miR-155 in BM endothelial cells, leading to miR-155-mediated targeting of the nuclear factor κB (NF-κB) inhibitor κB-Ras1, NF-κB activation, and increased proinflammatory cytokine production. Deletion of miR-155 in the stroma of RBPJ(-/-) mice prevented the development of myeloproliferative-like disease and cytokine induction. Analysis of BM from patients carrying myeloproliferative neoplasia also revealed elevated expression of miR-155. Thus, the Notch/miR-155/κB-Ras1/NF-κB axis regulates the inflammatory state of the BM niche and affects the development of myeloproliferative disorders.
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Affiliation(s)
- Lin Wang
- Wells Center for Pediatric Research, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Huajia Zhang
- Wells Center for Pediatric Research, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Sonia Rodriguez
- Wells Center for Pediatric Research, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Liyun Cao
- Wells Center for Pediatric Research, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Jonathan Parish
- Wells Center for Pediatric Research, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Christen Mumaw
- Wells Center for Pediatric Research, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Amy Zollman
- Wells Center for Pediatric Research, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Malgorzata M Kamoka
- Department of Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Jian Mu
- Department of Computer Science and Engineering, University of Notre Dame, South Bend, IN 46556, USA
| | - Danny Z Chen
- Department of Computer Science and Engineering, University of Notre Dame, South Bend, IN 46556, USA
| | - Edward F Srour
- Wells Center for Pediatric Research, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN 46202, USA; Department of Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Brahmananda R Chitteti
- Department of Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Harm HogenEsch
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, IN 47907, USA
| | - Xiaolin Tu
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Teresita M Bellido
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - H Scott Boswell
- Department of Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Taghi Manshouri
- Leukemia Department, MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Srdan Verstovsek
- Leukemia Department, MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Mervin C Yoder
- Wells Center for Pediatric Research, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Reuben Kapur
- Wells Center for Pediatric Research, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Angelo A Cardoso
- Wells Center for Pediatric Research, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Nadia Carlesso
- Wells Center for Pediatric Research, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN 46202, USA.
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Kim H, Huang L, Critser PJ, Yang Z, Chan RJ, Wang L, Carlesso N, Voytik-Harbin SL, Bernstein ID, Yoder MC. Notch ligand Delta-like 1 promotes in vivo vasculogenesis in human cord blood-derived endothelial colony forming cells. Cytotherapy 2015; 17:579-92. [PMID: 25559145 DOI: 10.1016/j.jcyt.2014.12.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [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: 07/25/2014] [Revised: 11/06/2014] [Accepted: 12/04/2014] [Indexed: 01/11/2023]
Abstract
BACKGROUND AIMS Human cord blood (CB) is enriched in circulating endothelial colony forming cells (ECFCs) that display high proliferative potential and in vivo vessel forming ability. Because Notch signaling is critical for embryonic blood vessel formation in utero, we hypothesized that Notch pathway activation may enhance cultured ECFC vasculogenic properties in vivo. METHODS In vitro ECFC stimulation with an immobilized chimeric Notch ligand (Delta-like1(ext-IgG)) led to significant increases in the mRNA and protein levels of Notch regulated Hey2 and EphrinB2 that were blocked by treatment with γ-secretase inhibitor addition. However, Notch stimulated preconditioning in vitro failed to enhance ECFC vasculogenesis in vivo. In contrast, in vivo co-implantation of ECFCs with OP9-Delta-like 1 stromal cells that constitutively expressed the Notch ligand delta-like 1 resulted in enhanced Notch activated ECFC-derived increased vessel density and enlarged vessel area in vivo, an effect not induced by OP9 control stromal implantation. RESULTS This Notch activation was associated with diminished apoptosis in the exposed ECFC. CONCLUSIONS We conclude that Notch pathway activation in ECFC in vivo via co-implanted stromal cells expressing delta-like 1 promotes vasculogenesis and augments blood vessel formation via diminishing apoptosis of the implanted ECFC.
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Affiliation(s)
- Hyojin Kim
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana, USA; Herman B. Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, Indiana, USA; Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, Indiana, USA; Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | - Lan Huang
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana, USA; Herman B. Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, Indiana, USA; Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Paul J Critser
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana, USA; Herman B. Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Zhenyun Yang
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana, USA; Herman B. Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Rebecca J Chan
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana, USA; Herman B. Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Lin Wang
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana, USA; Herman B. Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, Indiana, USA; Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Nadia Carlesso
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana, USA; Herman B. Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, Indiana, USA; Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Sherry L Voytik-Harbin
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana, USA
| | | | - Mervin C Yoder
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana, USA; Herman B. Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, Indiana, USA; Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, Indiana, USA.
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32
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Bi P, Shan T, Liu W, Yue F, Yang X, Liang XR, Wang J, Li J, Carlesso N, Liu X, Kuang S. Inhibition of Notch signaling promotes browning of white adipose tissue and ameliorates obesity. Nat Med 2014; 20:911-8. [PMID: 25038826 PMCID: PMC4181850 DOI: 10.1038/nm.3615] [Citation(s) in RCA: 203] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2014] [Accepted: 05/28/2014] [Indexed: 12/14/2022]
Abstract
Beige adipocytes in white adipose tissue (WAT) are similar to classical brown adipocytes in that they can burn lipids to produce heat. Thus, an increase in beige adipocyte content in WAT browning would raise energy expenditure and reduce adiposity. Here we report that adipose-specific inactivation of Notch1 or its signaling mediator Rbpj in mice results in browning of WAT and elevated expression of uncoupling protein 1 (Ucp1), a key regulator of thermogenesis. Consequently, as compared to wild-type mice, Notch mutants exhibit elevated energy expenditure, better glucose tolerance and improved insulin sensitivity and are more resistant to high fat diet-induced obesity. By contrast, adipose-specific activation of Notch1 leads to the opposite phenotypes. At the molecular level, constitutive activation of Notch signaling inhibits, whereas Notch inhibition induces, Ppargc1a and Prdm16 transcription in white adipocytes. Notably, pharmacological inhibition of Notch signaling in obese mice ameliorates obesity, reduces blood glucose and increases Ucp1 expression in white fat. Therefore, Notch signaling may be therapeutically targeted to treat obesity and type 2 diabetes.
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Affiliation(s)
- Pengpeng Bi
- Department of Animal Sciences, Purdue University, West Lafayette, Indiana, USA
| | - Tizhong Shan
- Department of Animal Sciences, Purdue University, West Lafayette, Indiana, USA
| | - Weiyi Liu
- Department of Animal Sciences, Purdue University, West Lafayette, Indiana, USA
| | - Feng Yue
- Department of Animal Sciences, Purdue University, West Lafayette, Indiana, USA
| | - Xin Yang
- Department of Animal Sciences, Purdue University, West Lafayette, Indiana, USA
| | - Xin-Rong Liang
- Department of Animal Sciences, Purdue University, West Lafayette, Indiana, USA
| | - Jinghua Wang
- Department of Animal Sciences, Purdue University, West Lafayette, Indiana, USA
| | - Jie Li
- Department of Biochemistry, Purdue University, West Lafayette, Indiana, USA
| | - Nadia Carlesso
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Xiaoqi Liu
- 1] Department of Biochemistry, Purdue University, West Lafayette, Indiana, USA. [2] Center for Cancer Research, Purdue University, West Lafayette, Indiana, USA
| | - Shihuan Kuang
- 1] Department of Animal Sciences, Purdue University, West Lafayette, Indiana, USA. [2] Center for Cancer Research, Purdue University, West Lafayette, Indiana, USA
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33
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Chen H, Zhang W, Sun X, Yoshimoto M, Chen Z, Zhu W, Liu J, Shen Y, Yong W, Li D, Zhang J, Lin Y, Li B, VanDusen NJ, Snider P, Schwartz RJ, Conway SJ, Field LJ, Yoder MC, Firulli AB, Carlesso N, Towbin JA, Shou W. Fkbp1a controls ventricular myocardium trabeculation and compaction by regulating endocardial Notch1 activity. Development 2013; 140:1946-57. [PMID: 23571217 DOI: 10.1242/dev.089920] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Trabeculation and compaction of the embryonic myocardium are morphogenetic events crucial for the formation and function of the ventricular walls. Fkbp1a (FKBP12) is a ubiquitously expressed cis-trans peptidyl-prolyl isomerase. Fkbp1a-deficient mice develop ventricular hypertrabeculation and noncompaction. To determine the physiological function of Fkbp1a in regulating the intercellular and intracellular signaling pathways involved in ventricular trabeculation and compaction, we generated a series of Fkbp1a conditional knockouts. Surprisingly, cardiomyocyte-restricted ablation of Fkbp1a did not give rise to the ventricular developmental defect, whereas endothelial cell-restricted ablation of Fkbp1a recapitulated the ventricular hypertrabeculation and noncompaction observed in Fkbp1a systemically deficient mice, suggesting an important contribution of Fkbp1a within the developing endocardia in regulating the morphogenesis of ventricular trabeculation and compaction. Further analysis demonstrated that Fkbp1a is a novel negative modulator of activated Notch1. Activated Notch1 (N1ICD) was significantly upregulated in Fkbp1a-ablated endothelial cells in vivo and in vitro. Overexpression of Fkbp1a significantly reduced the stability of N1ICD and direct inhibition of Notch signaling significantly reduced hypertrabeculation in Fkbp1a-deficient mice. Our findings suggest that Fkbp1a-mediated regulation of Notch1 plays an important role in intercellular communication between endocardium and myocardium, which is crucial in controlling the formation of the ventricular walls.
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Affiliation(s)
- Hanying Chen
- Riley Heart Research Center, Division of Pediatric Cardiology, Indiana University School of Medicine, Indianapolis, IN 46202, USA.
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Hu P, Nebreda AR, Liu Y, Carlesso N, Kaplan M, Kapur R. p38α protein negatively regulates T helper type 2 responses by orchestrating multiple T cell receptor-associated signals. J Biol Chem 2012; 287:33215-26. [PMID: 22859305 DOI: 10.1074/jbc.m112.355594] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Mitogen-activated protein kinase p38α is a critical regulator of certain inflammatory diseases. However, its role in T helper type 2 (Th2) responses and allergic inflammation remains unknown. Here we show an increase in the production of interleukin-4 (IL-4) in p38α(-/-) CD4(+) T cells in response to antigen stimulation. p38α-deficient naïve CD4(+) T cells preferentially differentiate into Th2 cells through increased endogenous production of IL-4. Consistent with those results, we also observed decreased expression of p38α during T helper cell differentiation. Furthermore, deficiency of p38α alters the balance in the expression of NFATc1 and NFATc2 under steady-state conditions and enhances the expression and nuclear translocation of NFATc1 in CD4(+) T cells upon antigen stimulation. Knockdown of NFATc1 significantly inhibits Th2 differentiation in p38α(-/-) T cells but not in p38α(+/-) T cells. p38α deficiency also inhibits the activation of Akt but enhances the activation of ERK in response to T cell receptor engagement without impacting IL-2/Stat5 signaling. In a model of ovalbumin-induced acute allergic airway inflammation, mice with induced deletion of p38α show elevated serum ovalbumin-specific IgE level, increased infiltration of eosinophils, and higher concentrations of Th2 cytokines including IL-4 and IL-5 in the bronchoalveolar lavage fluid relative to control mice. Taken together, p38α regulates multiple T cell receptor-associated signals and negatively influences Th2 differentiation and allergic inflammation.
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Affiliation(s)
- Ping Hu
- Department of Pediatrics, Herman B. Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, Indiana 46202, USA
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Hu P, Carlesso N, Xu M, Liu Y, Nebreda AR, Takemoto C, Kapur R. Genetic evidence for critical roles of P38α protein in regulating mast cell differentiation and chemotaxis through distinct mechanisms. J Biol Chem 2012; 287:20258-69. [PMID: 22518842 DOI: 10.1074/jbc.m112.358119] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Mast cells mediate a range of immune responses. However, the mechanisms that contribute to their development remain poorly understood. Here, using a P38α conditional knockout system, we provide evidence to suggest that P38α plays critical roles in regulating mast cell differentiation and migration via distinct mechanisms. Induced deletion of P38α in bone marrow cells retards the maturation of mast cells in part by inhibiting the activation of cAMP response element-binding protein and expression of microphthalmia-associated transcription factor, which encourages the generation of basophils over mast cells. In fully differentiated mast cells, absence of P38α inhibits stem cell factor-induced activation of Akt and ERK, which is associated with reduced chemotaxis. In vivo, conditional deletion of P38α results in reduced numbers of mast cells in certain tissues and a failure to reconstitute these cells in W(sh) mice transplanted with P38α(-/-) Lin(-)c-kit(+)Sca-1(+) (LKS(+)) cells. Our findings suggest that P38α plays a dual role in mast cell development by regulating IL-3-induced differentiation of mast cell progenitor cells as well as by regulating stem cell factor-induced migration of fully differentiated mast cells.
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Affiliation(s)
- Ping Hu
- Department of Pediatrics, Herman B. Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, Indiana 46202, USA
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Raimondi L, Ciarapica R, De Salvo M, Verginelli F, Gueguen M, Martini C, De Sio L, Cortese G, Locatelli M, Dang TP, Carlesso N, Miele L, Stifani S, Limon I, Locatelli F, Rota R. Inhibition of Notch3 signalling induces rhabdomyosarcoma cell differentiation promoting p38 phosphorylation and p21(Cip1) expression and hampers tumour cell growth in vitro and in vivo. Cell Death Differ 2011; 19:871-81. [PMID: 22117196 PMCID: PMC3321627 DOI: 10.1038/cdd.2011.171] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Rhabdomyosarcoma (RMS) is a paediatric soft-tissue sarcoma arising from skeletal muscle precursors coexpressing markers of proliferation and differentiation. Inducers of myogenic differentiation suppress RMS tumourigenic phenotype. The Notch target gene HES1 is upregulated in RMS and prevents tumour cell differentiation in a Notch-dependent manner. However, Notch receptors regulating this phenomenon are unknown. In agreement with data in RMS primary tumours, we show here that the Notch3 receptor is overexpressed in RMS cell lines versus normal myoblasts. Notch3-targeted downregulation in RMS cells induces hyper-phosphorylation of p38 and Akt essential for myogenesis, resulting in the differentiation of tumour cells into multinucleated myotubes expressing Myosin Heavy Chain. These phenomena are associated to a marked decrease in HES1 expression, an increase in p21Cip1 level and the accumulation of RMS cells in the G1 phase. HES1-forced overexpression in RMS cells reverses, at least in part, the pro-differentiative effects of Notch3 downregulation. Notch3 depletion also reduces the tumourigenic potential of RMS cells both in vitro and in vivo. These results indicate that downregulation of Notch3 is sufficient to force RMS cells into completing a correct full myogenic program providing evidence that it contributes, partially through HES1 sustained expression, to their malignant phenotype. Moreover, they suggest Notch3 as a novel potential target in human RMS.
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Affiliation(s)
- L Raimondi
- Department of Oncohematology, Ospedale Pediatrico Bambino Gesù, IRCCS, Roma, Italy
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Cheng YH, Chitteti BR, Streicher DA, Morgan JA, Rodriguez-Rodriguez S, Carlesso N, Srour EF, Kacena MA. Impact of maturational status on the ability of osteoblasts to enhance the hematopoietic function of stem and progenitor cells. J Bone Miner Res 2011; 26:1111-21. [PMID: 21542011 PMCID: PMC3179304 DOI: 10.1002/jbmr.302] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Osteoblasts (OBs) exert a prominent regulatory effect on hematopoietic stem cells (HSCs). We evaluated the difference in hematopoietic expansion and function in response to co-culture with OBs at various stages of development. Murine calvarial OBs were seeded directly (fresh) or cultured for 1, 2, or 3 weeks prior to seeding with 1000 Lin-Sca1 + cKit+ (LSK) cells for 1 week. Significant increases in the following hematopoietic parameters were detected when comparing co-cultures of fresh OBs to co-cultures containing OBs cultured for 1, 2, or 3 weeks: total hematopoietic cell number (up to a 3.4-fold increase), total colony forming unit (CFU) number in LSK progeny (up to an 18.1-fold increase), and percentage of Lin-Sca1+ cells (up to a 31.8-fold increase). Importantly, these studies were corroborated by in vivo reconstitution studies in which LSK cells maintained in fresh OB co-cultures supported a significantly higher level of chimerism than cells maintained in co-cultures containing 3-week OBs. Characterization of OBs cultured for 1, 2, or 3 weeks with real-time PCR and functional mineralization assays showed that OB maturation increased with culture duration but was not affected by the presence of LSK cells in culture. Linear regression analyses of multiple parameters measured in these studies show that fresh, most likely more immature OBs better promote hematopoietic expansion and function than cultured, presumably more mature OBs and suggest that the hematopoiesis-enhancing activity is mediated by cells present in fresh OB cultures de novo.
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Affiliation(s)
- Ying-Hua Cheng
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN 46202, USA
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Batista A, Barata JT, Raderschall E, Sallan SE, Carlesso N, Nadler LM, Cardoso AA. Targeting of active mTOR inhibits primary leukemia T cells and synergizes with cytotoxic drugs and signaling inhibitors. Exp Hematol 2011; 39:457-472.e3. [PMID: 21277936 DOI: 10.1016/j.exphem.2011.01.005] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2010] [Revised: 12/22/2010] [Accepted: 01/05/2011] [Indexed: 11/19/2022]
Abstract
OBJECTIVE Rationally designed therapies aim at the specific disruption of critical signaling pathways activated by malignant transformation or signals from the tumor microenvironment. Because mammalian target of rapamycin (mTOR) is an important signal integrator and a key translational regulator, we evaluated its potential involvement in T-cell acute lymphoblastic leukemia (T-ALL) and whether mTOR blockade synergizes with chemotherapeutic agents or other signaling antagonists to inhibit primary leukemia T cells. MATERIALS AND METHODS mTOR signaling status was assessed using biochemical, immunostaining, and molecular regulation studies and functional assays performed to assess the impact of mTOR blockade on T-ALL proliferation, survival, and cell cycle. RESULTS We observed that mTOR signaling is highly activated in all T-ALL patients tested, with phosphorylation of its downstream substrates eIF4G and S6 ribosomal protein. mTOR activation was detected in vivo and was further increased in vitro by stimulation with interleukin-7, a potentially leukemogenic cytokine normally produced by the bone marrow microenvironment. In T-ALL cells, mTOR blockade was associated with accumulation of the cyclin-dependent kinase inhibitor p27(kip1), which preferentially adopted a nuclear localization. Functional studies using rapamycin or CCI-779 showed a dominant inhibitory effect of mTOR blockade on interleukin-7-induced proliferation, survival, and cell-cycle progression of T-ALL cells. Furthermore, mTOR blockade markedly potentiated the antileukemia effects of dexamethasone and doxorubicin, and showed highly synergistic interactions in combination with specific inhibitors of phosphatidylinositol 3-kinase/Akt and Janus kinase 3 signaling. CONCLUSIONS This study shows activation of mTOR signaling in primary T-ALL cells evolving in the leukemic bone marrow, and supports the inclusion of mTOR antagonists in current therapeutic regimens for this cancer.
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Affiliation(s)
- Ana Batista
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Mass., USA
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Chitteti BR, Cheng YH, Streicher DA, Rodriguez-Rodriguez S, Carlesso N, Srour EF, Kacena MA. Osteoblast lineage cells expressing high levels of Runx2 enhance hematopoietic progenitor cell proliferation and function. J Cell Biochem 2011; 111:284-94. [PMID: 20506198 DOI: 10.1002/jcb.22694] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Although osteoblasts (OB) play a key role in the hematopoietic stem cell (HSC) niche, little is known as to which specific OB lineage cells are critical for the enhancement of stem and progenitor cell function. Unlike hematopoietic cells, OB cell surface phenotypic definitions are not well developed. Therefore, to determine which OB lineage cells are most important for hematopoietic progenitor cell (HPC) function, we characterized OB differentiation by gene expression and OB function, and determined whether associations existed between OB and HPC properties. OB were harvested from murine calvariae, used immediately (fresh OB) or cultured for 1, 2, or 3 weeks prior to their co-culture with Lin(-)Sca1(+)c-kit(+) (LSK) cells for 1 week. OB gene expression, alkaline phosphatase activity, calcium deposition, hematopoietic cell number fold increase, CFU fold increase, and fold increase of Lin(-)Sca1(+) cells were determined. As expected, HPC properties were enhanced when LSK cells were cultured with OB compared to being cultured alone. Initial alkaline phosphatase and calcium deposition levels were significantly and inversely associated with an increase in the number of LSK progeny. Final calcium deposition levels and OB culture duration were inversely associated with all HPC parameters, while Runx2 levels were positively associated with all HPC properties. Since calcium deposition is associated with OB maturation and high levels of Runx2 are associated with less mature OB lineage cells, these results suggest that less mature OB better promote HPC proliferation and function than do more mature OB.
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Affiliation(s)
- Brahmananda R Chitteti
- Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana 46202, USA
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Ding J, Batista A, Turk A, Rodriguez-Rodriguez S, Wang L, Mumaw C, Carlesso N, Cardoso AA. STAT3 as a molecular target in pediatric T-cell leukemia. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.9564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Goodchild TT, Robinson KA, Pang W, Tondato F, Cui J, Arrington J, Godwin L, Ungs M, Carlesso N, Weich N, Poznansky MC, Chronos NAF. Bone marrow-derived B cells preserve ventricular function after acute myocardial infarction. JACC Cardiovasc Interv 2010; 2:1005-16. [PMID: 19850263 DOI: 10.1016/j.jcin.2009.08.010] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2009] [Revised: 07/13/2009] [Accepted: 08/21/2009] [Indexed: 10/20/2022]
Abstract
OBJECTIVES In view of evidence that mature cells play a role in modulating the stem cell niche and thereby stem cell potential and proliferation, we hypothesized that a mature bone marrow (BM) mononuclear cell (MNC) infusion subfraction may have particular potency in promoting hematopoietic or resident stem cell-induced cardiac repair post-infarction. BACKGROUND Treatment of acute myocardial infarction (MI) with BM MNC infusion has shown promise for improving patient outcomes. However, clinical data are conflicting, and demonstrate modest improvements. BM MNCs consist of different subpopulations including stem cells, progenitors, and differentiated leukocytes. METHODS Stem cells (c-kit+) and subsets of mature cells including myeloid lineage, B and T-cells were isolated from bone marrow harvested from isogeneic donor rats. Recipient rats had baseline echocardiography then coronary artery ligation; 1 x 10(6) cells (enriched subpopulations or combinations of subpopulations of BM MNC) or saline was injected into ischemic and ischemic border zones. Cell subpopulations were either injected fresh or after overnight culture. After 2 weeks, animals underwent follow-up echocardiography. Cardiac tissue was assayed for cardiomyocyte proliferation and apoptosis. RESULTS Fractional ventricular diameter shortening was significantly improved compared with saline (38 +/- 3.2%) when B cells alone were injected fresh (44 +/- 3.0%, p = 0.035), or after overnight culture (51 +/- 2.9%, p < 0.001), or after culture with c-kit+ cells (44 +/- 2.4%, p = 0.062). B cells reduced apoptosis at 48 h after injection compared with control cells (5.7 +/- 1.2% vs. 12.6 +/- 2.0%, p = 0.005). CONCLUSIONS Intramyocardial injection of B cells into early post-ischemic myocardium preserved cardiac function by cardiomyocyte salvage. Other BM MNC subtypes were either ineffective or suppressed cardioprotection conferred by an enriched B cell population.
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Fernandez L, Rodriguez S, Huang H, Chora A, Fernandes J, Mumaw C, Cruz E, Pollok K, Cristina F, Price JE, Ferkowicz MJ, Scadden DT, Clauss M, Cardoso AA, Carlesso N. Tumor necrosis factor-alpha and endothelial cells modulate Notch signaling in the bone marrow microenvironment during inflammation. Exp Hematol 2008; 36:545-558. [PMID: 18439488 DOI: 10.1016/j.exphem.2007.12.012] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2007] [Revised: 11/28/2007] [Accepted: 12/24/2007] [Indexed: 01/22/2023]
Abstract
OBJECTIVE Homeostasis of the hematopoietic compartment is challenged and maintained during conditions of stress by mechanisms that are poorly defined. To understand how the bone marrow (BM) microenvironment influences hematopoiesis, we explored the role of Notch signaling and BM endothelial cells in providing microenvironmental cues to hematopoietic cells in the presence of inflammatory stimuli. MATERIALS AND METHODS The human BM endothelial cell line (BMEC) and primary human BM endothelial cells were analyzed for expression of Notch ligands and the ability to expand hematopoietic progenitors in an in vitro coculture system. In vivo experiments were carried out to identify modulation of Notch signaling in BM endothelial and hematopoietic cells in mice challenged with tumor necrosis factor-alpha (TNF-alpha) or lipopolysaccharide (LPS), or in Tie2-tmTNF-alpha transgenic mice characterized by constitutive TNF-alpha activation. RESULTS BM endothelial cells were found to express Jagged ligands and to greatly support progenitor's colony-forming ability. This effect was markedly decreased by Notch antagonists and augmented by increasing levels of Jagged2. Physiologic upregulation of Jagged2 expression on BMEC was observed upon TNF-alpha activation. Injection of TNF-alpha or LPS upregulated three- to fourfold Jagged2 expression on murine BM endothelial cells in vivo and resulted in increased Notch activation on murine hematopoietic stem/progenitor cells. Similarly, constitutive activation of endothelial cells in Tie2-tmTNF-alpha mice was characterized by increased expression of Jagged2 and by augmented Notch activation on hematopoietic stem/progenitor cells. CONCLUSIONS Our results provide the first evidence that BM endothelial cells promote expansion of hematopoietic progenitor cells by a Notch-dependent mechanism and that TNF-alpha and LPS can modulate the levels of Notch ligand expression and Notch activation in the BM microenvironment in vivo.
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Affiliation(s)
- Luis Fernandez
- Center of Regenerative Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Mass., USA
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Abstract
Background—
Activated macrophages contribute to the pathogenesis of inflammatory diseases such as atherosclerosis. Although Notch signaling participates in various aspects of immunity, its role in macrophage activation remains undetermined.
Methods and Results—
To explore the role of Notch signaling in inflammation, we examined the expression and activity of Notch pathway components in human primary macrophages in vitro and in atherosclerotic plaques. Macrophages in culture express various Notch pathway components including all 4 receptors (Notch1 to Notch4). Notch3 selectively increased during macrophage differentiation; however, silencing by RNA interference demonstrated that all receptors are functional. The ligand Delta-like 4 (Dll4) increased in macrophages exposed to proinflammatory stimuli such as lipopolysaccharide, interleukin-1β, or minimally-modified low-density lipoprotein in a Toll-like receptor 4– and nuclear factor-κB–dependent fashion. Soluble Dll4 bound to human macrophages. Coincubation of macrophages with cells that expressed Dll4 triggered Notch proteolysis and activation; increased the transcription of proinflammatory genes such as inducible nitric oxide synthase, pentraxin 3 and Id1; resulted in activation of mitogen-activated protein kinase, Akt, and nuclear factor-κB pathways; and increased the expression of Dll4 in macrophages. Notch3 knockdown during macrophage differentiation decreased the transcription of genes that promote inflammation, such as inducible nitric oxide synthase, pentraxin 3, Id1, and scavenger receptor-A. These in vitro findings correlate with results of quantitative immunohistochemistry, which demonstrated the presence of Dll4 and other Notch components within macrophages in atherosclerotic plaques.
Conclusion—
Dll4-triggered Notch signaling may mediate inflammatory responses in macrophages and promote inflammation.
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Affiliation(s)
- Erik Fung
- Center for Excellence in Vascular Biology, Brigham and Women's Hospital, Harvard Medical School, 77 Ave Louis Pasteur, Boston, MA 02115, USA
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Barata JT, Silva A, Abecasis M, Carlesso N, Cumano A, Cardoso AA. Molecular and functional evidence for activity of murine IL-7 on human lymphocytes. Exp Hematol 2006; 34:1133-42. [PMID: 16939806 DOI: 10.1016/j.exphem.2006.05.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2006] [Revised: 04/28/2006] [Accepted: 05/01/2006] [Indexed: 10/24/2022]
Abstract
Although interleukin-7 (IL-7) is essential for human and murine lymphopoiesis and homeostasis, clear disparities between these species regarding the role of IL-7 during B-cell development suggest that other, subtler differences may exist. One basic unsolved issue of IL-7 biology concerns cross-species activity, because in contrast to the human ortholog, the ability of murine (m)IL-7 to stimulate human cells remains unresolved. Establishing whether two-way cross-species reactivity occurs is fundamental for evaluating the role of IL-7 in chimeric human-mouse models, which are the most versatile tools for studying human lymphoid development and disease in vivo. Here, we show that mIL-7 triggers the same signaling pathways as human (h)IL-7 in human T cells, promoting similar changes in viability, proliferation, size, and immunophenotype, even at low concentrations. This ability is not confined to T cells, because mIL-7 mediates cell growth and protects human B-cell precursors from dexamethasone-induced apoptosis. Importantly, endogenous mIL-7 produced in the mouse thymic microenvironment stimulates human T cells, because their expansion in chimeric fetal thymic organ cultures is inhibited by a mIL-7-specific neutralizing antibody. Our results demonstrate that mIL-7 affects human lymphocytes and indicate that mouse models of human lymphoid development and disease must integrate the biological effects of endogenous IL-7 on human cells.
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Affiliation(s)
- Joao T Barata
- Institute of Molecular Medicine, Faculty of Medicine of Lisbon University, Lisbon, Portugal.
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Sarmento LM, Huang H, Limon A, Gordon W, Fernandes J, Tavares MJ, Miele L, Cardoso AA, Classon M, Carlesso N. Notch1 modulates timing of G1-S progression by inducing SKP2 transcription and p27 Kip1 degradation. ACTA ACUST UNITED AC 2005; 202:157-68. [PMID: 15998794 PMCID: PMC2212905 DOI: 10.1084/jem.20050559] [Citation(s) in RCA: 133] [Impact Index Per Article: 7.0] [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] [Indexed: 12/22/2022]
Abstract
Cyclin-dependent kinase inhibitors (CKIs) and Notch receptor activation have been shown to influence adult stem cells and progenitors by altering stem cell self-renewal and proliferation. Yet, no interaction between these molecular pathways has been defined. Here we show that ligand-independent and ligand-dependent activation of Notch1 induces transcription of the S phase kinase–associated protein 2 (SKP2), the F-box subunit of the ubiquitin-ligase complex SCFSKP2 that targets proteins for degradation. Up-regulation of SKP2 by Notch signaling enhances proteasome-mediated degradation of the CKIs, p27Kip1 and p21Cip1, and causes premature entry into S phase. Silencing of SKP2 by RNA interference in G1 stabilizes p27Kip1 and p21Cip1 and abolishes Notch effect on G1-S progression. Thus, SKP2 serves to link Notch1 activation with the cell cycle machinery. This novel pathway involving Notch/SKP2/CKIs connects a cell surface receptor with proximate mediators of cell cycle activity, and suggests a mechanism by which a known physiologic mediator of cell fate determination interfaces with cell cycle control.
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Affiliation(s)
- Leonor M Sarmento
- Center of Regenerative Medicine and Technology, Massachusetts General Hospital, Boston, MA, USA
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Jang MS, Miao H, Carlesso N, Shelly L, Zlobin A, Darack N, Qin JZ, Nickoloff BJ, Miele L. Notch-1 regulates cell death independently of differentiation in murine erythroleukemia cells through multiple apoptosis and cell cycle pathways. J Cell Physiol 2004; 199:418-33. [PMID: 15095289 DOI: 10.1002/jcp.10467] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Notch signaling is a potential therapeutic target for various solid and hematopoietic malignancies. We have recently shown that downregulation of Notch-1 expression has significant anti-neoplastic activity in pre-clinical models. However, the mechanisms through which Notch modulation may affect cell fate in cancer remain poorly understood. We had previously shown that Notch-1 prevents apoptosis and is necessary for pharmacologically induced differentiation in murine erythroleukemia (MEL) cells. We investigated the mechanisms of these effects using three experimental strategies: (1) MEL cells stably transfected with antisense Notch-1 or constitutively active Notch-1, (2) activation of Notch-1 by a cell-associated ligand, and (d3) activation of Notch-1 by a soluble peptide ligand. We show that: (1) downregulation of Notch-1 sensitizes MEL cells to apoptosis induced by a Ca(2+) influx or anti-neoplastic drugs; (2) Notch-1 downregulation induces phosphorylation of c-Jun N-terminal kinase (JNK) while constitutive activation of Notch-1 or prolonged exposure to a soluble Notch ligand abolishes it; (3) Notch-1 has dose- and time-dependent effects on the levels of apoptotic inhibitor Bcl-x(L) and cell cycle regulators p21(cip1/waf1), p27(kip1), and Rb; and (4) Notch-1 activation by a cell-associated ligand is accompanied by rapid and transient induction of NF-kappaB DNA-binding activity. The relative effects of Notch-1 signaling on these pathways depend on the levels of Notch-1 expression, the mechanism of activation, and the timing of activation. The relevance of these findings to the role of Notch signaling in differentiation and cancer are discussed.
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Affiliation(s)
- Mei-Shiang Jang
- Cardinal Bernardin Cancer Center, Loyola University Chicago, Maywood, Illinois, USA
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Christmas P, Carlesso N, Shang H, Cheng SM, Weber BM, Preffer FI, Scadden DT, Soberman RJ. Myeloid expression of cytochrome P450 4F3 is determined by a lineage-specific alternative promoter. J Biol Chem 2003; 278:25133-42. [PMID: 12709424 DOI: 10.1074/jbc.m302106200] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The cytochrome P450 4F3 (CYP4F3) gene encodes two functionally distinct enzymes that differ only by the selection of exon 4 (CYP4F3A) or exon 3 (CYP4F3B). CYP4F3A inactivates leukotriene B4, a reaction that has significance for controlling inflammation. CYP4F3B converts arachidonic acid to 20-hydroxyeicosatetraenoic acid, a potent activator of protein kinase C. We have previously shown that mRNAs coding for CYP4F3A and CYP4F3B are generated from distinct transcription start sites in neutrophils and liver. We therefore investigated mechanisms that regulate the cell-specific expression of these two isoforms. Initially, we analyzed the distribution of CYP4F3 in human leukocytes and determined a lineage-specific pattern of isoform expression. CYP4F3A is expressed in myeloid cells and is coordinate with myeloid differentiation markers such as CD11b and myeloperoxidase during development in the bone marrow. In contrast, CYP4F3B expression is restricted to a small population of CD3+ T lymphocytes. We identified distinct transcriptional features in myeloid, lymphoid, and hepatic cells that indicate the presence of multiple promoters in the CYP4F3 gene. The hepatic promoter depends on a cluster of hepatocyte nuclear factor sites 123-155 bp upstream of the initiator ATG codon. The myeloid promoter spans 400 bp in a region 468-872 bp upstream of the ATG codon; it is associated with clusters of CACCT sites and can be activated by ZEB-2, a factor primarily characterized as a transcriptional repressor in cells that include lymphocytes. ZEB-2 interacts with C-terminal binding protein and Smads, and this would provide opportunities for integrating environmental signals in myelopoiesis and inflammation.
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Affiliation(s)
- Peter Christmas
- Renal Unit, Massachusetts General Hospital and Harvard Medical School, Charlestown 02129, USA.
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Wang Z, Miura N, Bonelli A, Mole P, Carlesso N, Olson DP, Scadden DT. Receptor tyrosine kinase, EphB4 (HTK), accelerates differentiation of select human hematopoietic cells. Blood 2002; 99:2740-7. [PMID: 11929761 DOI: 10.1182/blood.v99.8.2740] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
EphB4 (HTK) and its ligand, ephrinB2, are critical for angiogenesis and result in fatal abnormalities of capillary formation in null mice. EphB4 was originally identified in human bone marrow CD34(+) cells by us and has since been reported to be expressed in erythroid progenitors, whereas the ligand ephrinB2 is expressed in bone marrow stromal cells. Reasoning that the developmental relationship between angiogenesis and hematopoiesis implies common regulatory molecules, we assessed whether EphB4 signaling influences the function and phenotype of primitive human hematopoietic cells. Ectopically expressed EphB4 in cell lines of restricted differentiation potential promoted megakaryocytic differentiation, but not granulocytic or monocytic differentiation. Primary cord blood CD34(+) cells transduced with EphB4 resulted in the elevated expression of megakaryocytic and erythroid specific markers, consistent with EphB4 selectively enhancing some lineage-committed progenitors. In less mature cells, EphB4 depleted primitive cells, as measured by long-term culture-initiating cells or CD34(+)CD38(-) cell numbers, and increased progenitor cells of multiple cell types. Effects of ectopic EphB4 expression could be abrogated by either targeted mutations of select tyrosine residues or by the tyrosine kinase inhibitor, genistein. These data indicate that EphB4 accelerates the differentiation of primitive cells in a nonlineage-restricted manner but alters only select progenitor populations, influencing lineages linked by common ancestry with endothelial cells. EphB4 enforces preferential megakaryocytic and erythroid differentiation and may be a molecular bridge between angiogenesis and hematopoiesis.
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Affiliation(s)
- Zhengyu Wang
- Experimental Hematology, AIDS Research Center and MGH Cancer Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02129, USA
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Stier S, Cheng T, Dombkowski D, Carlesso N, Scadden DT. Notch1 activation increases hematopoietic stem cell self-renewal in vivo and favors lymphoid over myeloid lineage outcome. Blood 2002; 99:2369-78. [PMID: 11895769 DOI: 10.1182/blood.v99.7.2369] [Citation(s) in RCA: 289] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Hematopoietic stem cells sequentially pass through a series of decision points affecting self-renewal or lineage-specific differentiation. Notch1 receptor is a known modulator of lineage-specific events in hematopoiesis that we assessed in the context of in vivo stem cell kinetics. Using RAG-1(-/-) mouse stems cells, we documented increased stem cell numbers due to decreased differentiation and enhanced stem cell self-renewal induced by Notch1. Unexpectedly, preferential lymphoid over myeloid lineage commitment was noted when differentiation occurred. Therefore, Notch1 affects 2 decision points in stem cell regulation, favoring self-renewal over differentiation and lymphoid over myeloid lineage outcome. Notch1 offers an attractive target for stem cell manipulation strategies, particularly in the context of immunodeficiency and acquired immunodeficiency syndrome.
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Affiliation(s)
- Sebastian Stier
- Partners AIDS Research Center, MGH Cancer Center, Massachusetts General Hospital, 149 13th Street, Boston, MA 02129, USA
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Christmas P, Jones JP, Patten CJ, Rock DA, Zheng Y, Cheng SM, Weber BM, Carlesso N, Scadden DT, Rettie AE, Soberman RJ. Alternative splicing determines the function of CYP4F3 by switching substrate specificity. J Biol Chem 2001; 276:38166-72. [PMID: 11461919 DOI: 10.1074/jbc.m104818200] [Citation(s) in RCA: 98] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Diversity of cytochrome P450 function is determined by the expression of multiple genes, many of which have a high degree of identity. We report that the use of alternate exons, each coding for 48 amino acids, generates isoforms of human CYP4F3 that differ in substrate specificity, tissue distribution, and biological function. Both isoforms contain a total of 520 amino acids. CYP4F3A, which incorporates exon 4, inactivates LTB4 by omega-hydroxylation (Km = 0.68 microm) but has low activity for arachidonic acid (Km = 185 microm); it is the only CYP4F isoform expressed in myeloid cells in peripheral blood and bone marrow. CYP4F3B incorporates exon 3 and is selectively expressed in liver and kidney; it is also the predominant CYP4F isoform in trachea and tissues of the gastrointestinal tract. CYP4F3B has a 30-fold higher Km for LTB4 compared with CYP4F3A, but it utilizes arachidonic acid as a substrate for omega-hydroxylation (Km = 22 microm) and generates 20-HETE, an activator of protein kinase C and Ca2+/calmodulin-dependent kinase II. Homology modeling demonstrates that the alternative exon has a position in the molecule which could enable it to contribute to substrate interactions. The results establish that tissue-specific alternative splicing of pre-mRNA can be used as a mechanism for changing substrate specificity and increasing the functional diversity of cytochrome P450 genes.
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Affiliation(s)
- P Christmas
- Center for Immunology and Inflammatory Diseases, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts 02129, USA.
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