Hava Avraham, PhD^*, Radoslaw Zagozdzon, MD, PhD^*, Yigong Fu, MS^*, Jerome E. Groopman, MD and Shuxian Jiang, PhD^*

Division of Experimental Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA

Mohammad Dehghani^1*, Damla Olcaydu^2*, Pavel Uhrin^1*, Bernd Binder, MD¹ and Johannes Breuss^1*

¹Department of Vascular Biology and Thrombosis Research, Medical University of Vienna, Vienna, Austria
²Center for Molecular Medicine, Austrian Academy of Sciences, Vienna, Austria

Robert E. Donahue, VMD¹, Ping Jin, PhD^2*, Aylin C. Bonifacino^1*, Mark E. Metzger^1* and David Stroncek, MD^2*

¹Hematology Branch, NHLBI, NIH, Rockville, MD
²Department of Transfusion Medicine, Clinical Center, NIH, Bethesda, MD

Oksana Zavidij^*, Claudia R Ball, PhD^*, Sylvia Fessler^*, Manfred Schmidt, PhD^*, Christof von Kalle, MD^* and Hanno Glimm, MD

Translational Oncology, National Center for Tumor Diseases (NCT) / German Cancer Research Center (DKFZ), Heidelberg, Germany

Daniel Lucas, PhD^1* and Paul S. Frenette, M.D.²

¹Department of Medicine, Mount Sinai School of Medicine, New York, NY
²Department of Medicine and Immunology Institute, Mount Sinai School of Medicine, New York, NY

Adriana Drost, PhD^*, Lena Jaggy^*, Lothar Kanz, MD and Robert Möhle, MD

Dept. of Medicine II, University of Tübingen, Tübingen, Germany

Mary Mohrin^1*, Emer Bourke, PhD^2*, Ciaran Morrison, PhD^2* and Emmanuelle Passegue, PhD¹

¹Institute for Regeneration Medicine, University of California School of Medicine - San Francisco, San Francisco, CA
²Department of Biochemistry, National University of Ireland, Galway, Galway, Ireland

Akil Merchant, MD, Giselle Joseph, BS^* and William Matsui, MD^*

Oncology, Johns Hopkins University, Baltimore, MD

Inga Hofmann Zhang, MD^1*, Elizabeth H. Stover^1*, Dana E. Cullen^1*, Junhao Mao, PhD^2*, Kelly J. Morgan, PhD^1*, Benjamin H. Lee, MD, PhD¹, Michael G. Kharas, PhD^1*, Peter G. Miller^1*, Rachel Okabe^1*, Scott A. Armstrong, MD, PhD³, Nico Ghilardi, PhD^4*, Stephen Gould, PhD^4*, Fred J. deSauvage, PhD^4*, Andrew P. McMahon, PhD^2* and D. Gary Gilliland, MD, PhD¹

¹Department of Medicine, Division of Hematology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
²Department of Molecular and Cellular Harvard University, Cambridge, MA
³Children's Hospital, Boston, MA
⁴Genentech Inc., South San Francisco, CA

John M. Perry, Ph.D.^*, Justin C. Grindley, Ph.D.^*, Xi He, MD and Linheng Li, Ph.D.^*

Stowers Institute for Medical Research, Kansas City, MO

Ingmar Bruns, MD, PhD¹, Patrick Cadeddu^1*, Sebastian Büst^1*, Boris Goerg^2*, Johannes C Fischer^3*, Oliver Selbach^4*, Ulrich Steidl, MD, PhD⁵, Ralf Kronenwett^1*, Rainer Haas^1*, Guido Kobbe^1* and Akos Czibere, MD, PhD¹

¹Hem./Onc. & Clin. Immuno., University of Düsseldorf, Dusseldorf, Germany
²Department of Gatroenterology, Hepatology and Infectiology, University of Düsseldorf, Düsseldorf, Germany
³Institute for Transplantation Diagnostics and Cell Therapeutics, Heinrich-Heine University, Düsseldorf, Germany
⁴Institute of Neuro- und Sensory Physiology, University of Düsseldorf, Düsseldorf, Germany
⁵Department of Cell Biology and Albert Einstein Cancer Center, Albert Einstein College of Medicine, New York, NY

Sachiko Ezoe^*, Itaru Matsumura, Hirokazu Tanaka^*, Yusuke Satoh^*, Takafumi Yokota^*, Kenji Oritani^* and Yuzuru Kanakura^*

Dept. of Hem./Onc., Osaka Univ., Suita, Japan

Feng Xu, MD^1*, Qingde Wang, MD., PhD.^1*, Hongmei Shen, PhD², Hui Yu, MD, PhD^1*, Yanxin Li, PhD^1* and Tao Cheng, MD¹

¹University of Pittsburgh Cancer Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA
²Thomas E. Starzl Transplantation Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA

Jianfeng Wang, MD, PhD^1*, Farshid Dayyani, MD, PhD^2*, Christopher Brynczka^1* and David A. Sweetser, MD, PhD³

¹Dept. of Pediatrics, Massachusetts General Hospital, Boston, MA
²Leukemia, University of Texas MD Anderson Cancer Center, Houston, TX
³Jackson 904, Massachusetts General Hospital, Boston, MA

Claude Capron^1*, Catherine Lacout^2*, Yann Lecluse^2*, Valérie Jalbert^3*, Elisabeth Cramer Bordé^4*, Anne Galy^2*, Sabine Charrier^2* and William Vainchenker²

¹INSERM U790, IFR 54, Institut Gustave Roussy and U567 Institut Cochin, Villejuif:Paris, France
²INSERM U790, Institut Gustave Roussy, Villejuif, France
³Hopital Ambroise Paré, Université Versaille Pris Ile de France Ouest, Boulogne Billancourt, France
⁴Departement d'hématologie, Institut Cochin, Inserm, U567, Paris, France

Stephen Bartelmez, PhD^1*, Francis W Ruscetti, PhD², Patrick Iversen, PhD^3*, Ashay Bhatwadekar, PhD^4* and Maria Grant, MD^4*

¹Stem Cells, BetaStem Therapeutics, San Francisco, CA
²Laboratory of Experimental Immunology, NIH/NCI, Frederick, MD
³Biologicals, AVI-BioPharma, Corvallis, OR
⁴Pharmacology, University of Florida, Gainesville, FL

Devorah C. Goldman, PhD^1*, Alexis S. Bailey^1*, Dana L. Pfaffle^1*, Jan L. Christian, PhD^2* and William H. Fleming, MD, PhD¹

¹Department of Medicine, Division of Hematology and Medical Oncology, Oregon Health & Science University, Portland, OR
²Department of Cell and Developmental Biology, Oregon Health & Science University, Portland, OR

Ailing Li, PhD, Ying Liang^*, Yi Liu^* and Gary VanZant^*

Internal Med., Univ. of Kentucky, Lexington, KY

Deborah J. Stumpo, PhD^1*, Hal E. Broxmeyer, PhD², Scott Cooper^2*, Giao Hangoc, DVM, PhD³, Peter D. Aplan, MD⁴, Yang Jo Chung, PhD⁴, Mervin C. Yoder, MD⁵, William C. Shelley^5* and Perry J. Blackshear^1*

¹Laboratory of Signal Transduction, NIEHS, Research Triangle Park, NC
²Indiana University School of Medicine, Walther Oncology Center, Indianapolis, IN
³Walther Oncology Center, Indiana Univ. School of Med., Indianapolis, IN
⁴Genetics Branch, NIH, NCI, CCR, Bethesda, MD
⁵Cancer Research Institute, Wells Ctr. for Pediatric Rsch., Indianapolis, IN

Marie Terpager^1*, Hiroshi Kataoka^2*, Ivo Cornelissen^1*, Justin Hamilton^3* and Shaun R Coughlin^4*

¹Cardiovascular Research Institute, University of California, San Francisco, San Francisco, CA
²Lab. for Stem Cell Biology, RIKEN Center for Developmental Biology, Kobe, Japan
³Australian Centre for Blood Diseases, Monash University,, Melbourne, Australia
⁴Cvri, University of California, San Francisco, San Francisco, CA

Chinavenmeni S. Velu, PhD¹, Michael Berk^2*, Haiming Xu^3*, Tristan Bourdeau, MS^4*, Avedis Kazanjian^4*, David A. Williams, MD⁵, Clemencia Colmenares, Ph.D.^6* and H. Leighton Grimes, PhD⁴

¹Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
²Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic,, Cleveland, OH
³Experimental Hematology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
⁴Cincinnati Children's Hospital Medical Center, Cincinnati, OH
⁵Chief, Div. of Hematology/Oncology, Children's Hospital Boston, Leland Fikes, Boston, MA
⁶Cancer Biology, Cleveland Clinic, Cleveland, OH

Sumin Koo^1*, Thomas Mercher, Ph.D^2*, Shannon Mckinney-Freeman, Ph.D^3*, Yuan Wang, Ph.D^3*, Brian Ball^4*, Brian JP Huntly, MD, PhD^5*, Dimple Bansal, Ph.D^4*, George Q. Daley, MD, PhD³ and D. Gary Gilliland⁴

¹Harvard Medical School, Boston, MA
²Division of Hematology, Department of Medicine, Brigham and Women's Hospital, INSERM EMI0210, Universite Paris V-Descartes, Paris, MA, France
³Children's Hospital Boston, Boston, MA
⁴Brigham and Women's Hospital, Boston, MA
⁵Hematology, University of Cambridge, Cambridge, United Kingdom

Zuzana Tothova^1*, Stephen M Sykes^1*, Dena S Leeman^1*, James W Horner^2*, Norman Sharpless³, Ronald A DePinho^2* and D. Gary Gilliland¹

¹Division of Hematology, Brigham and Women's Hospital, Howard Hughes Medical Institute, Harvard Medical School, Boston, MA
²Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA
³Lineberger Cancer Center, University of North Carolina School of Medicine, Chapel Hill, NC

Matthew J Boyer^*, Feng Xu, MD^*, Hui Yu, MD, PhD^* and Tao Cheng, MD

University of Pittsburgh Cancer Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA

Jiayun Lu^1*, Cesar Nombela-Arrieta^1*, Shin-Young Park^1*, Yi Le^1*, Li Chai^2* and Leslie E. Silberstein¹

¹Joint Program in Transfusion Medicine, Children's Hospital Boston, Boston, MA
²Joint Program in Transfusion Medicine, Brigham and Women's Hospital, Boston, MA

Yinshi Guo, Ph., D., M.D.^1*, Chao Niu, MD, PhD², Peter Breslin, PhD^3*, Shubin Zhang^4*, Wei Wei^1*, Minghui Tang, Ph., D., M.D.^1* and Jiwang Zhang, MD, PhD^1*

¹Oncology Institute, Loyola University Medical Center, Maywood, IL
²St. Jude Children's Hospital, Memphis, TN
³Oncology Institute, Loyola Universtiy Medical Center, Maywood, IL
⁴Oncology, Loyola University Medical Center, Maywood, IL

Helene M. Schoemans, MD^*, Rikkert Snoeckx^*, Shannon Buckley^*, Elda Mimiola^*, Sarah Schouteden^* and Catherine M. Verfaillie, MD

Stem Cell Institute, UZ Leuven, Leuven, Belgium

Maheswaran Mani, PhD^1*, Shivkumar Venkatasubrahmanyam, PhD^2*, Mrinmoy Sanyal, PhD³, Yujun Yang^1*, Jing Huang^1*, Shoshana Levy, PhD^3*, Atul Butte, MD, PhD^2*, Kenneth I. Weinberg, MD¹ and Thomas Jahn, MD¹

¹Pediatric Stem Cell Transplantation, Stanford University School of Medicine, Stanford, CA
²Center for Biomedical Informatics Research, Stanford University School of Medicine, Stanford, CA
³Medicine, Division of Oncology, Stanford University School of Medicine, Stanford, CA

Neil P Rodrigues, D.Phil^1*, Ashleigh S Boyd, D.Phil^1*, Cristina Fugazza, Ph.D^1*, Gillian E May, Ph.D^1*, YanPing Guo^1*, Alex J Tipping, Ph.D^1*, David T. Scadden, MD², Paresh Vyas, MD, DPhil^1* and Tariq Enver, Ph.D^1*

¹MRC Haematology Unit, University of Oxford, Headington, United Kingdom
²MGH Center for Regenerative Medicine, Harvard Stem Cell Institute, Boston, MA

Claude Capron^1*, Catherine Lacout^2*, Yann Lecluse^2*, Orianne Wagner-Ballon^2*, Anna Lila Kaushik^2*, Elisabeth Cramer Bordé^3*, Fred Sablitzky^4*, Dominique Duménil^3* and William Vainchenker²

¹INSERM U790, IFR 54, Institut Gustave Roussy and U567, Institut Cochin, Villejuif/Paris, France
²INSERM U790, Institut Gustave Roussy, Villejuif, France
³Departement d'hématologie, Institut Cochin, Inserm, U567, Paris, France
⁴Institute of Genetics, University of Nottingham, School of Biology, Nottingham, United Kingdom