1
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Park HR, Shiva A, Cummings P, Kim S, Kim S, Lee E, Leong A, Chowdhury S, Shawber C, Carvajal R, Thurston G, An JY, Lund AW, Yang HW, Kim M. Angiopoietin-2-dependent spatial vascular destabilization promotes T-cell exclusion and limits immunotherapy in melanoma. Cancer Res 2023:726093. [PMID: 37093870 DOI: 10.1158/0008-5472.can-22-2838] [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] [Received: 09/06/2022] [Revised: 01/13/2023] [Accepted: 04/18/2023] [Indexed: 04/25/2023]
Abstract
T cell position in the tumor microenvironment determines the probability of target encounter and tumor killing. CD8+ T cell exclusion from the tumor parenchyma is associated with poor response to immunotherapy, and yet the biology that underpins this distinct pattern remains unclear. Here we show that the vascular destabilizing factor angiopoietin-2 (ANGPT2) causes compromised vascular integrity in the tumor periphery, leading to impaired T cell infiltration to the tumor core. The spatial regulation of ANGPT2 in whole tumor cross-sections was analyzed in conjunction with T cell distribution, vascular integrity, and response to immunotherapy in syngeneic murine melanoma models. T cell exclusion was associated with ANGPT2 upregulation and elevated vascular leakage at the periphery of human and murine melanomas. Both pharmacological and genetic blockade of ANGPT2 promoted CD8+ T cell infiltration into the tumor core, exerting antitumor effects. Importantly, the reversal of T cell exclusion following ANGPT2 blockade not only enhanced response to anti-PD-1 immune checkpoint blockade therapy in immunogenic, therapy responsive mouse melanomas, but it also rendered non-responsive tumors susceptible to immunotherapy. Therapeutic response after ANGPT2 blockade, driven by improved CD8+ T cell infiltration to the tumor core, coincided with spatial TIE2 signaling activation and increased vascular integrity at the tumor periphery where endothelial expression of adhesion molecules was reduced. These data highlight ANGPT2/TIE2 signaling as a key mediator of T cell exclusion and a promising target to potentiate immune checkpoint blockade efficacy in melanoma.
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Affiliation(s)
- Ha-Ram Park
- Columbia University Medical Center, New York, New York, United States
| | - Anahita Shiva
- Columbia University Medical Center, New York, United States
| | | | - Seoyeon Kim
- Korea University, Korea (South), Republic of
| | - Sungsoo Kim
- Columbia University Medical Center, New York, United States
| | | | | | | | - Carrie Shawber
- Columbia University Irving Medical Center, New York, NY, United States
| | | | - Gavin Thurston
- Regeneron Pharmaceuticals, Inc., Tarrytown, NY, United States
| | - Joon Yong An
- Korea University, Seoul, Korea (South), Republic of
| | - Amanda W Lund
- NYU Grossman School of Medicine, New York, NY, United States
| | - Hee Won Yang
- Columbia University Medical Center, New York, NY, United States
| | - Minah Kim
- Columbia University Medical Center, New York, United States
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2
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Saeki K, Qiu W, Friedman R, Shawber C, Kitajewski J, Hu J, Su GH. Abstract PO-073: Inactivation of Notch4 attenuated pancreatic tumorigenesis in mice. Cancer Res 2021. [DOI: 10.1158/1538-7445.panca21-po-073] [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
Expression of the Notch family of receptors are often upregulated in pancreatic ductal adenocarcinoma (PDAC), however, the functional impacts of the Notch signaling network on pancreatic tumorigenesis remain unresolved. In this study, we focused on Notch4, which had not been investigated in PDAC. Leveraging the conventional Notch4 deficient mouse line and previously established genetically engineered mouse models (GEMM) for PDAC, we generated KC (LSL-KrasG12D;p48-Cre), N4−/−KC (Notch4−/−;LSL-KrasG12D;p48-Cre), PKC (p16flox/flox;LSL-KrasG12D;p48-Cre), and N4−/−PKC GEMMs (Notch4−/−; p16flox/lox;LSL-KrasG12D;p48-Cre). We performed caerulein treatment in both KC and N4−/−KC mice, and compared the development of acinar to ductal metaplasia (ADM) and pancreatic intraepithelial neoplasia (PanIN) between them. The ADM/PanIN lesions were significantly smaller in the N4−/−KC than in the KC GEMM (p=0.01), suggesting that Notch4 deficiency attenuated early pancreatic tumorigenesis. This in vivo result was confirmed by in vitro ADM induction of the explant cultures of mouse pancreatic acinar cells. The number of ADM structures in the N4−/−KC acinar cultures was significantly lower than the KC acinar cultures (p<0.001). To evaluate the role of Notch4 in the later stage of pancreatic tumorigenesis, we compared the histological progression and overall survival between the PKC and N4−/−PKC mice. We found that N4−/−PKC mice had better prognosis (p=0.012) and less tumor burden (PanIN: p=0.018 (2 months), PDAC: p=0.039 (5 months)) compared to the PKC GEMM. RNA-Seq analysis of pancreatic tumor cell lines derived from the PKC and N4−/−PKC GEMMs revealed 408 genes were differentially expressed (FDR<0.05) and the genes related to the NGF processing as novel downstream effectors of the Notch4 signaling pathway(p<0.001). Our study is a novel biological investigation that demonstrated that Notch4 signaling possesses tumor promoting function in pancreatic tumorigenesis. Our study revealed a novel association between the NGF processing pathway and Notch4 signaling in PDAC.
Citation Format: Kiyoshi Saeki, Wanglong Qiu, Richard Friedman, Carrie Shawber, Jan Kitajewski, Jianhua Hu, Gloria H. Su. Inactivation of Notch4 attenuated pancreatic tumorigenesis in mice [abstract]. In: Proceedings of the AACR Virtual Special Conference on Pancreatic Cancer; 2021 Sep 29-30. Philadelphia (PA): AACR; Cancer Res 2021;81(22 Suppl):Abstract nr PO-073.
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Affiliation(s)
- Kiyoshi Saeki
- 1Columbia University Irving Medical Center, New York, NY,
| | - Wanglong Qiu
- 1Columbia University Irving Medical Center, New York, NY,
| | | | - Carrie Shawber
- 1Columbia University Irving Medical Center, New York, NY,
| | | | - Jianhua Hu
- 1Columbia University Irving Medical Center, New York, NY,
| | - Gloria H. Su
- 1Columbia University Irving Medical Center, New York, NY,
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Gomez-Acevedo H, Dai Y, Strub G, Shawber C, Wu JK, Richter GT. Identification of putative biomarkers for Infantile Hemangiomas and Propranolol treatment via data integration. Sci Rep 2020; 10:3261. [PMID: 32094357 PMCID: PMC7039967 DOI: 10.1038/s41598-020-60025-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [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: 07/04/2019] [Accepted: 12/20/2019] [Indexed: 12/29/2022] Open
Abstract
Infantile hemangiomas (IHs) are the most common benign tumors in early childhood. They show a distinctive mechanism of tumor growth in which a rapid proliferative phase is followed by a regression phase (involution). Propranolol is an approved treatment for IHs, but its mechanism of action remains unclear. We integrated and harmonized microRNA and mRNA transcriptome data from newly generated microarray data on IHs with publicly available data on toxicological transcriptomics from propranolol exposure, and with microRNA data from IHs and propranolol exposure. We identified subsets of putative biomarkers for proliferation and involution as well as a small set of putative biomarkers for propranolol's mechanism of action for IHs, namely EPAS1, LASP1, SLC25A23, MYO1B, and ALDH1A1. Based on our integrative data approach and confirmatory experiments, we concluded that hypoxia in IHs is regulated by EPAS1 (HIF-2α) instead of HIF-1α, and also that propranolol-induced apoptosis in endothelial cells may occur via mitochondrial stress.
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Affiliation(s)
- Horacio Gomez-Acevedo
- Department of Biomedical Informatics, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA.
| | - Yuemeng Dai
- Mesquite Rehabilitation Institute, Mesquite, Texas, USA
| | - Graham Strub
- Department of Otolaryngology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Carrie Shawber
- Department of Surgery, New York-Presbyterian/Morgan Stanley Children's Hospital, Columbia University, New York, New York, USA
| | - June K Wu
- Department of Reproductive Sciences in Obstetrics & Gynecology and Surgery, Columbia University, New York, New York, USA
| | - Gresham T Richter
- Department of Otolaryngology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
- Arkansas Children's Hospital, Little Rock, Arkansas, USA
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Davis RB, Pahl K, Datto NC, Smith SV, Shawber C, Caron KM, Blatt J. Author Correction: Notch signaling pathway is a potential therapeutic target for extracranial vascular malformations. Sci Rep 2020; 10:1847. [PMID: 31996757 PMCID: PMC6989694 DOI: 10.1038/s41598-020-58751-8] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
An amendment to this paper has been published and can be accessed via a link at the top of the paper.
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Affiliation(s)
- Reema B Davis
- Departments of Cell Biology and Physiology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Kristy Pahl
- Pediatrics (Division of Pediatric Hematology Oncology), University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Nicholas C Datto
- Departments of Cell Biology and Physiology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Scott V Smith
- Surgical Pathology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.,Pathology and Laboratory Medicine (Translational Pathology Laboratory), University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Carrie Shawber
- Department of Obstetrics and Gynecology, Columbia University, New York, NY, USA
| | - Kathleen M Caron
- Departments of Cell Biology and Physiology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Julie Blatt
- Pediatrics (Division of Pediatric Hematology Oncology), University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
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5
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Davis RB, Pahl K, Datto NC, Smith SV, Shawber C, Caron KM, Blatt J. Notch signaling pathway is a potential therapeutic target for extracranial vascular malformations. Sci Rep 2018; 8:17987. [PMID: 30573741 PMCID: PMC6302123 DOI: 10.1038/s41598-018-36628-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [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: 03/05/2018] [Accepted: 11/20/2018] [Indexed: 12/22/2022] Open
Abstract
Notch expression has been shown to be aberrant in brain arteriovenous malformations (AVM), and targeting Notch has been suggested as an approach to their treatment. It is unclear whether extracranial vascular malformations follow the same patterning and Notch pathway defects. In this study, we examined human extracranial venous (VM) (n = 3), lymphatic (LM) (n = 10), and AV (n = 6) malformations, as well as sporadic brain AVMs (n = 3). In addition to showing that extracranial AVMs demonstrate interrupted elastin and that AVMs and LMs demonstrate abnormal α-smooth muscle actin just as brain AVMS do, our results demonstrate that NOTCH1, 2, 3 and 4 proteins are overexpressed to varying degrees in both the endothelial and mural lining of the malformed vessels in all types of malformations. We further show that two gamma secretase inhibitors (GSIs), DAPT (GSI-IX) and RO4929097, cause dose-dependent inhibition of Notch target gene expression (Hey1) and rate of migration of monolayer cultures of lymphatic endothelial cells (hLECs) and blood endothelial cells (HUVEC). GSIs also inhibit HUVEC network formation. hLECs are more sensitive to GSIs compared to HUVEC. GSIs have been found to be safe in clinical trials in patients with Alzheimer’s disease or cancer. Our results provide further rationale to support testing of Notch inhibitors in patients with extracranial vascular malformations.
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Affiliation(s)
- Reema B Davis
- Departments of Cell Biology and Physiology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Kristy Pahl
- Pediatrics (Division of Pediatric Hematology Oncology), University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Nicholas C Datto
- Departments of Cell Biology and Physiology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Scott V Smith
- Surgical Pathology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.,Pathology and Laboratory Medicine (Translational Pathology Laboratory), University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Carrie Shawber
- Department of Obstetrics and Gynecology, Columbia University, New York, NY, USA
| | - Kathleen M Caron
- Departments of Cell Biology and Physiology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Julie Blatt
- Pediatrics (Division of Pediatric Hematology Oncology), University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
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6
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Muley A, Odaka Y, Lewkowich IP, Vemaraju S, Yamaguchi TP, Shawber C, Dickie BH, Lang RA. Myeloid Wnt ligands are required for normal development of dermal lymphatic vasculature. PLoS One 2017; 12:e0181549. [PMID: 28846685 PMCID: PMC5573294 DOI: 10.1371/journal.pone.0181549] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Accepted: 07/03/2017] [Indexed: 12/20/2022] Open
Abstract
Resident tissue myeloid cells play a role in many aspects of physiology including development of the vascular systems. In the blood vasculature, myeloid cells use VEGFC to promote angiogenesis and can use Wnt ligands to control vascular branching and to promote vascular regression. Here we show that myeloid cells also regulate development of the dermal lymphatic vasculature using Wnt ligands. Using myeloid-specific deletion of the WNT transporter Wntless we show that myeloid Wnt ligands are active at two distinct stages of development of the dermal lymphatics. As lymphatic progenitors are emigrating from the cardinal vein and intersomitic vessels, myeloid Wnt ligands regulate both their numbers and migration distance. Later in lymphatic development, myeloid Wnt ligands regulate proliferation of lymphatic endothelial cells (LEC) and thus control lymphatic vessel caliber. Myeloid-specific deletion of WNT co-receptor Lrp5 or Wnt5a gain-of-function also produce elevated caliber in dermal lymphatic capillaries. These data thus suggest that myeloid cells produce Wnt ligands to regulate lymphatic development and use Wnt pathway co-receptors to regulate the balance of Wnt ligand activity during the macrophage-LEC interaction.
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Affiliation(s)
- Ajit Muley
- Department of OB-GYN, Columbia University Medical Center, Columbia University, New York City, New York, United States of America
| | - Yoshi Odaka
- Visual Systems Group, Division of Pediatric Ophthalmology, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, United States of America
| | - Ian P. Lewkowich
- Division of Immunobiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, United States of America
| | - Shruti Vemaraju
- Visual Systems Group, Division of Pediatric Ophthalmology, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, United States of America
| | - Terry P. Yamaguchi
- Cancer and Developmental Biology Laboratory, National Cancer Institute, Frederick, Maryland, United States of America
| | - Carrie Shawber
- Department of OB-GYN, Columbia University Medical Center, Columbia University, New York City, New York, United States of America
| | - Belinda H. Dickie
- Department of Surgery, Boston Children's Hospital, Boston, Massachusetts, United States of America
- * E-mail: (RAL); (BHD)
| | - Richard A. Lang
- Visual Systems Group, Division of Pediatric Ophthalmology, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, United States of America
- Center for Chronobiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, United States of America
- Abrahamson Pediatric Eye Institute, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, United States of America
- Division of Developmental Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, United States of America
- Department of Ophthalmology, College of Medicine, University of Cincinnati, Cincinnati, Ohio, United States of America
- * E-mail: (RAL); (BHD)
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Gnarra M, Shad C, Mirashi E, Muley A, Keung C, Reilly M, Wu J, Shawber C. 860 Understanding cellular & molecular responses in the treatment of pediatric lymphatic anomalies. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.886] [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: 10/19/2022]
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8
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Mourad M, Qin S, Ananth CV, Fu A, Yoshida K, Myers K, Kitajewski J, Shawber C, Wapner R, Sheetz M, Vink J. 109: Human cervical smooth muscle stretch increases pro-inflammatory cytokine secretion. Am J Obstet Gynecol 2017. [DOI: 10.1016/j.ajog.2016.11.999] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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9
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Gnarra M, Mirashi E, Muley A, Keung C, Reilly M, Wu J, Shawber C. 088 Antiproliferative effect of propranolol on Lymphatic Malformations. J Invest Dermatol 2016. [DOI: 10.1016/j.jid.2016.06.106] [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: 11/28/2022]
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10
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Sullivan-Pyke C, Levin H, Deng J, Kitajewski J, Shawber C, Douglas N. Active notch signaling in the mouse decidua and developing placenta. Fertil Steril 2015. [DOI: 10.1016/j.fertnstert.2015.07.1091] [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: 11/28/2022]
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11
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Galic V, Shawber C, Shah M, Wright J, Herzog T, Kitajewski J, Tong G. NOTCH2 as a tumor suppressor in epithelial ovarian cancer. Gynecol Oncol 2012. [DOI: 10.1016/j.ygyno.2011.12.327] [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: 11/28/2022]
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Quante M, Bhagat G, Abrams J, Marache F, Good P, Lee MD, Lee Y, Friedman R, Asfaha S, Dubeykovskaya Z, Mahmood U, Figueiredo JL, Kitajewski J, Shawber C, Lightdale C, Rustgi AK, Wang TC. Bile acid and inflammation activate gastric cardia stem cells in a mouse model of Barrett-like metaplasia. Cancer Cell 2012; 21:36-51. [PMID: 22264787 PMCID: PMC3266546 DOI: 10.1016/j.ccr.2011.12.004] [Citation(s) in RCA: 340] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2011] [Revised: 06/02/2011] [Accepted: 12/01/2011] [Indexed: 02/06/2023]
Abstract
Esophageal adenocarcinoma (EAC) arises from Barrett esophagus (BE), intestinal-like columnar metaplasia linked to reflux esophagitis. In a transgenic mouse model of BE, esophageal overexpression of interleukin-1β phenocopies human pathology with evolution of esophagitis, Barrett-like metaplasia and EAC. Histopathology and gene signatures closely resembled human BE, with upregulation of TFF2, Bmp4, Cdx2, Notch1, and IL-6. The development of BE and EAC was accelerated by exposure to bile acids and/or nitrosamines, and inhibited by IL-6 deficiency. Lgr5(+) gastric cardia stem cells present in BE were able to lineage trace the early BE lesion. Our data suggest that BE and EAC arise from gastric progenitors due to a tumor-promoting IL-1β-IL-6 signaling cascade and Dll1-dependent Notch signaling.
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Affiliation(s)
- Michael Quante
- Division of Digestive and Liver Diseases, Irving Cancer Research Center, Department of Medicine, Columbia University Medical Center, New York, NY
- II. Medizinische Klinik, Klinikum rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675 München
- Corresponding authors: Timothy C. Wang, M.D., Division of Digestive and Liver Diseases, Columbia University Medical Center, 1130 St. Nicholas Avenue, Room 925, 9th Floor; New York, NY 10032, Phone: (212) 851-4581; Fax: (212) 851-4590; . Michael Quante, M.D., II. Medizinische Klinik, Klinikum rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675 München, Phone: +49 89 4140 6795; Fax: +49 89 4140 6796;
| | - Govind Bhagat
- Department of Pathology and Cell Biology, Columbia University Medical Center, New York, NY
| | - Julian Abrams
- Division of Digestive and Liver Diseases, Irving Cancer Research Center, Department of Medicine, Columbia University Medical Center, New York, NY
| | - Frederic Marache
- Division of Digestive and Liver Diseases, Irving Cancer Research Center, Department of Medicine, Columbia University Medical Center, New York, NY
| | - Pamela Good
- Division of Digestive and Liver Diseases, Irving Cancer Research Center, Department of Medicine, Columbia University Medical Center, New York, NY
| | - Michele D. Lee
- Division of Digestive and Liver Diseases, Irving Cancer Research Center, Department of Medicine, Columbia University Medical Center, New York, NY
| | - Yoomi Lee
- Division of Digestive and Liver Diseases, Irving Cancer Research Center, Department of Medicine, Columbia University Medical Center, New York, NY
| | - Richard Friedman
- Department of Biomedical Informatics, Columbia University Medical Center, New York, NY
| | - Samuel Asfaha
- Division of Digestive and Liver Diseases, Irving Cancer Research Center, Department of Medicine, Columbia University Medical Center, New York, NY
| | - Zinaida Dubeykovskaya
- Division of Digestive and Liver Diseases, Irving Cancer Research Center, Department of Medicine, Columbia University Medical Center, New York, NY
| | - Umar Mahmood
- Nuclear Medicine & Molecular Imaging, Harvard Medical School and Massachusetts General Hospital, Boston, MA
| | - Jose-Luiz Figueiredo
- Center for Systems Biology, Harvard Medical School and Massachusetts General Hospital, Boston, MA
| | - Jan Kitajewski
- Pathology, Obstetrics and Gynecology, and Herbert Irving Comprehensive Cancer Center, Columbia University Medical Center, New York, NY 10032, USA
| | - Carrie Shawber
- Pathology, Obstetrics and Gynecology, and Herbert Irving Comprehensive Cancer Center, Columbia University Medical Center, New York, NY 10032, USA
| | - Charles Lightdale
- Division of Digestive and Liver Diseases, Irving Cancer Research Center, Department of Medicine, Columbia University Medical Center, New York, NY
| | - Anil K. Rustgi
- Division of Gastroenterology, Department of Medicine and Genetics, Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA
| | - Timothy C. Wang
- Division of Digestive and Liver Diseases, Irving Cancer Research Center, Department of Medicine, Columbia University Medical Center, New York, NY
- Corresponding authors: Timothy C. Wang, M.D., Division of Digestive and Liver Diseases, Columbia University Medical Center, 1130 St. Nicholas Avenue, Room 925, 9th Floor; New York, NY 10032, Phone: (212) 851-4581; Fax: (212) 851-4590; . Michael Quante, M.D., II. Medizinische Klinik, Klinikum rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675 München, Phone: +49 89 4140 6795; Fax: +49 89 4140 6796;
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Shawber C, Kitajewski J. Notch and vascular development. Angiogenesis 2006. [DOI: 10.1201/9781420004373.ch4] [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: 11/11/2022]
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14
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Cheng YW, Shawber C, Notterman D, Paty P, Barany F. Multiplexed profiling of candidate genes for CpG island methylation status using a flexible PCR/LDR/Universal Array assay. Genome Res 2005; 16:282-9. [PMID: 16369045 PMCID: PMC1361724 DOI: 10.1101/gr.4181406] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [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] [Indexed: 12/31/2022]
Abstract
DNA methylation in CpG islands is associated with transcriptional silencing. Accurate determination of cytosine methylation status in promoter CpG dinucleotides may provide diagnostic and prognostic value for human cancers. We have developed a quantitative PCR/LDR/Universal Array assay that allows parallel evaluation of methylation status of 75 CpG dinucleotides in the promoter regions of 15 tumor suppressor genes (CDKN2B, CDKN2A, CDKN2D, CDKN1A, CDKN1B, TP53, BRCA1, TIMP3, APC, RASSF1, CDH1, MGMT, DAPK1, GSTP1, and RARB). When compared with an independent pyrosequencing method at a single promoter, the two approaches gave good correlation. In a study using 15 promoter regions and seven blinded tumor cell lines, our technology was capable of distinguishing methylation profiles that identified cancer cell lines derived from the same origins. Preliminary studies using 96 colorectal tumor samples and 73 matched normal tissues indicated CpG methylation is a gene-specific and nonrandom event in colon cancer. This new approach is suitable for clinical applications where sample quantity and purity can be limiting factors.
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Affiliation(s)
- Yu-Wei Cheng
- Department of Microbiology and Immunology, Weill Medical College of Cornell University, New York, NY 10021, USA
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Vorontchikhina M, Shawber C, Zimmermann R, Kitajewski J. EXPRESSION OF NOTCH AND NOTCH LIGANDS DURING FOLLICULOGENESIS AND CORPUS LUTEUM FORMATION MARKS A SUBSET OF OVARIAN VESSELS. Cardiovasc Pathol 2004. [DOI: 10.1016/j.carpath.2004.03.219] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Abstract
Cerebral autosomal-dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is a vascular dementia arising from abnormal arteriolar vascular smooth muscle cells. CADASIL results from mutations in Notch3 that alter the number of cysteine residues in the extracellular epidermal growth factor-like repeats, important for ligand binding. It is not known whether CADASIL mutations lead to loss or gain of Notch3 receptor function. To examine the functional consequences of CADASIL mutations, we engineered 4 CADASIL-like mutations into rat Notch3 and have shown that the presence of an unpaired cysteine does not impair cell-surface expression or ligand binding.
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MESH Headings
- Amino Acid Motifs/physiology
- Animals
- Cell Line
- Cell Membrane/metabolism
- Dementia, Multi-Infarct/genetics
- Dementia, Multi-Infarct/metabolism
- Humans
- Kidney/cytology
- Kidney/metabolism
- Ligands
- Mice
- Molecular Sequence Data
- Mutagenesis, Site-Directed
- Protein Processing, Post-Translational/physiology
- Protein Structure, Tertiary/physiology
- Proto-Oncogene Proteins/genetics
- Proto-Oncogene Proteins/metabolism
- Rats
- Receptor, Notch3
- Receptor, Notch4
- Receptors, Cell Surface
- Receptors, Notch
- Sequence Homology, Amino Acid
- Structure-Activity Relationship
- Transfection
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Affiliation(s)
- Talin Haritunians
- Department of Human Genetics, University of California, Los Angeles 90095, USA
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Jiang R, Lan Y, Chapman HD, Shawber C, Norton CR, Serreze DV, Weinmaster G, Gridley T. Defects in limb, craniofacial, and thymic development in Jagged2 mutant mice. Genes Dev 1998; 12:1046-57. [PMID: 9531541 PMCID: PMC316673 DOI: 10.1101/gad.12.7.1046] [Citation(s) in RCA: 316] [Impact Index Per Article: 12.2] [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: 12/15/1997] [Accepted: 02/02/1998] [Indexed: 02/07/2023]
Abstract
The Notch signaling pathway is a conserved intercellular signaling mechanism that is essential for proper embryonic development in numerous metazoan organisms. We have examined the in vivo role of the Jagged2 (Jag2) gene, which encodes a ligand for the Notch family of transmembrane receptors, by making a targeted mutation that removes a domain of the Jagged2 protein required for receptor interaction. Mice homozygous for this deletion die perinatally because of defects in craniofacial morphogenesis. The mutant homozygotes exhibit cleft palate and fusion of the tongue with the palatal shelves. The mutant mice also exhibit syndactyly (digit fusions) of the fore- and hindlimbs. The apical ectodermal ridge (AER) of the limb buds of the mutant homozygotes is hyperplastic, and we observe an expanded domain of Fgf8 expression in the AER. In the foot plates of the mutant homozygotes, both Bmp2 and Bmp7 expression and apoptotic interdigital cell death are reduced. Mutant homozygotes also display defects in thymic development, exhibiting altered thymic morphology and impaired differentiation of gamma delta lineage T cells. These results demonstrate that Notch signaling mediated by Jag2 plays an essential role during limb, craniofacial, and thymic development in mice.
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Affiliation(s)
- R Jiang
- The Jackson Laboratory, Bar Harbor, Maine 04609 USA
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Affiliation(s)
- Y Lan
- Jackson Laboratory, Bar Harbor, Maine 04609, USA
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Shawber C, Nofziger D, Hsieh JJ, Lindsell C, Bögler O, Hayward D, Weinmaster G. Notch signaling inhibits muscle cell differentiation through a CBF1-independent pathway. Development 1996; 122:3765-73. [PMID: 9012498 DOI: 10.1242/dev.122.12.3765] [Citation(s) in RCA: 275] [Impact Index Per Article: 9.8] [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] [Indexed: 11/20/2022]
Abstract
Notch controls cell fate by inhibiting cellular differentiation, presumably through activation of the transcriptional regulator human C promoter Binding Factor (CBF1), which transactivates the hairy and Enhancer of split (HES-1) gene. However, we describe constitutively active forms of Notch1, which inhibit muscle cell differentiation but do not interact with CBF1 or upregulate endogenous HES-1 expression. In addition, Jagged-Notch interactions that prevent the expression of muscle cell specific genes do not involve the upregulation of endogenous HES-1. In fact, exogenous expression of HES-1 in C2C12 myoblasts does not block myogenesis. Our data demonstrate the existence of a CBF1-independent pathway by which Notch inhibits differentiation. We therefore propose that Notch signaling activates at least two different pathways: one which involves CBF1 as an intermediate and one which does not.
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Affiliation(s)
- C Shawber
- Department of Biological Chemistry, UCLA School of Medicine, Los Angeles, CA 90095-1737, USA
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Abstract
DSL (Delta, Serrate, Lag-2) ligands activate Notch signaling and thereby regulate the differentiation of many different cell types during development. We have isolated a novel Serrate-like gene, Jagged2, whose amino acid sequence and expression pattern during rat embryogenesis suggest that it functions as a ligand for Notch. In contrast to previously described DSL ligands for Notch, Jagged2 is not widely expressed in the developing central nervous system. However, Jagged2 and Notch1 are coexpressed in the apical ectodermal ridge (AER), suggesting a role for this ligand-receptor pair in limb development. Furthermore, unlike Jagged1, Jagged2 is coexpressed with Notch in the developing thymus, where it may induce Notch signaling to direct T-cell fate. Our data are consistent with the idea that the diversity of cell types regulated by Notch signaling is a consequence of activation of unique Notch isoforms by different DSL ligands.
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Affiliation(s)
- C Shawber
- Department of Biological Chemistry, UCLA School of Medicine, Los Angeles, California 90095-1737, USA
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