Jan Claas Brune, MS^1*, Ariane Tormin, MS^1*, Ulrike Bauer, MS^1*, Ulf Neumann, MD^2*, Pehr Rissler, MD, PhD^3*, Otte Brosjö, MD, PhD^4*, Richard Löfvenberg, MD, PhD^5*, Fredrik Vult von Steyern, MD, PhD^6*, Fredrik Mertens, MD, PhD^7*, Anders Rydholm, MD, PhD^6* and Stefan Scheding, MD¹

¹Lund Strategic Research Center for Stem Cell Biology and Cell Therapy, University of Lund, Lund, Sweden
²Department of General, Visceral, and Transplantation Surgery, University Hospital Charité, Berlin, Germany
³Department of Pathology, Lund University Hospital, Lund, Sweden
⁴Department of Orthopedics, Karolinska Hospital, Stockholm, Sweden
⁵Department of Orthopedics, Umeå University Hospital, Umeå, Sweden
⁶Department of Orthopedics, Lund University Hospital, Lund, Sweden
⁷Department of Clinical Genetics, Lund University Hospital, Lund, Sweden

Elisa Montelatici, PhD^1*, Gabriella Andriolo, PhD^1*, Mihaela Crisan, PhD^2*, Rosaria Giordano, MD¹, Paolo Rebulla, MD¹, Bruno Péault, PhD^2* and Lorenza Lazzari, PhD¹

¹Cell Factory, Department of Regenerative Medicine, Center of Transfusion Medicine, Cellular Therapy and Criobiology, Fondazione Ospedale Maggiore Policlinico, Milano, Italy
²Stem Cell Research Center, Departments of Pediatrics and Orthopaedic Surgery, Pittsburgh, PA

Yi Shen^1*, Valerie Barbier^1*, Ingrid G Winkler, PhD^1*, Jean Hendy^2* and Jean-Pierre Levesque, PhD¹

¹Mater Medical Research Institute, South Brisbane, Australia
²Peter MacCallum Cancer Centre, Australia

Junke Zheng^1*, HoangDinh Huynh^2* and Chengcheng Zhang, PhD³

¹UT Southwestern Medical Center, Dallas, TX
²Physiology and Developmental Biology, UT Southwestern Medical Center, Dallas, TX
³UT Southwestern, Dallas, TX

Xiaoling Zhang^1*, Xun Shang^1*, Fukun Guo^1*, Kim Murphy^1*, Michelle Kirby^1*, Patrick Kelly², Lilith Reeves^3*, Franklin O Smith^4*, David A. Williams⁵, Yi Zheng^3* and Qishen Pang³

¹Experimental Hematology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
²Wyeth Pharmaceuticals, Cambridge, MA
³Experimental Hematology and Pediatrics, Cincinnati Children's Hospital Medical Center and University of Cincinnati College of Medicine, Cincinnati, OH
⁴Hematology/Oncology and Pediatrics, Cincinnati Children's Hospital Medical Center and University of Cincinnati College of Medicine, Cincinnati, OH
⁵Hematology/Oncology, Children's Hospital Boston, Leland Fikes, Boston, MA

Maria Paula Alfaro^1*, Matthew Pagni^1*, Alicia Vincent^1*, Michael F. Hill, PhD^2*, Ethan Lee, MD, PhD^3* and Pampee Young, MD, PhD⁴

¹Pathology, Vanderbilt University, Nashville, TN
²Cardiovascular Medicine Division, Vanderbilt University, Nashville, TN
³Cell and Developmental Biology, Vanderbilt University, Nashville, TN
⁴Vanderbilt University, Nashville, TN

Patrick Ziegler, PhD^1*, Steffen Boettcher^1*, Guido Garavaglia, MD^2* and Markus G. Manz, MD¹

¹Institute for Research in Biomedicine, Bellinzona, Switzerland
²Department of Orthopedic Surgery, Ospedale San Giovanni, CH-6500 Bellinzona, Switzerland

Patrick Wuchter, M.D.^*, Rainer Saffrich, Ph.D.^*, Wolfgang Wagner, Ph.D., M.D.^*, Frederik Wein, Ph.D.^*, Mario Stephan Schubert, M.D.^*, Volker Eckstein, Ph.D.^* and Anthony D. Ho, M.D., Ph.D.^*

Department of Medicine V, University of Heidelberg, Heidelberg, Germany

Hong Qian^1*, Sophie Johansson^2*, Peter McCourt^3*, Bård Smedsrød^3*, Marja Ekblom^4* and Staffan Johansson^5*

¹Hematopoietic Stem Cell Laboratory; Lund Strategic Research Center for Stem Cell Biology and Cell Therapy, Lund University, Swed, Lund, Sweden
²Dept. of Medical Biochemistry and Microbiology, Uppsala University, Sweden, Uppsala, Sweden
³Dept. of Cell Biology and Histology, University of Tromsø, Norway
⁴Department of Hematology, Lund University Hospital, Sweden
⁵Dept. of Medical Biochemistry and Microbiology, Uppsala University, Sweden

Margaret H. Baron, MD, PhD, Joan Isern, PhD^*, Stuart T. Fraser, PhD^* and Zhiyong He, PhD^*

Mount Sinai School of Medicine, New York, NY

Melanie G Cornejo^1*, Thomas Mercher, Ph.D^2*, Joseph D. Growney, PhD^1*, Jonathan Jesneck^3*, Ivan Maillard, MD, PhD⁴, Warren S. Pear, MD, PhD⁵, Jon Aster, MD, PhD⁶ and D. Gary Gilliland, MD, PhD¹

¹Division of Hematology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
²INSERM EMI0210, Universite Paris V-Descartes, Paris, France
³Dana Farber Cancer Institute, Boston, MA
⁴Life Sciences Institute Rm 6382A, Center for Stem Cell Biology, Ann Arbor, MI
⁵University of Pennsylvania, Philadelphia, PA
⁶Brigham and Women's Hosp., Boston, MA

Takuo Mizukami, Ph.D^1*, Isao Hamaguchi, MD, Ph.D¹, Kazuya Takizawa, Ph.D^1*, Madoka Kuramitsu, Ph.D^1*, Haruka Momose, Ph.D^1*, Seishiro Naito, Ph.D^1*, Atsuko Masumi, Ph.D^1*, Seiji Okada, MD, Ph.D^2* and Kazunari Yamaguchi, MD, Ph.D^1*

¹Department of Safety Research on Blood and Biological Products, National Institute of Infectious Diseases, Tokyo, Japan
²Center for AIDS Research, Kumamoto University, Kumamoto, Japan