People

Principal Investigators

  • Imo J. Akpan, MD

    • Assistant Professor of Medicine CUIMC, Dept of Medicine-Division of Hematology/Oncology

    Dr. Akpan is a Classical Hematologist focused on a variety of blood disorders including anemia, iron disorders (iron deficiency/overload), bleeding, and clotting disorders, hemoglobinopathies, paroxysmal nocturnal hemoglobinuria, platelet disorders, and myeloid proliferative disorders. She founded and is the Director of the Women’s Clinic for Blood Disorders at NYP/CUIMC. She served on the World Health Organization's Thrombosis with Thrombocytopenia Syndrome (TTS) Guideline Development Group. She also serves on the Centers for Disease Control (CDC) Clinical Immunization Safety Assessment Thrombosis Work Group.

    Imo Jakpan - Columbia HICCC
  • Richard O. Francis, MD, PhD

    • Associate Professor of Pathology and Cell Biology at CUMC

    Dr. Francis’ research has mainly focused on the contribution of oxidative stress to the pathophysiological changes in red blood cells that occur during refrigerated storage, with an emphasis on glucose-6-phosphate dehydrogenase deficiency in blood donors.

  • Eldad A. Hod, MD

    • Professor of Pathology and Cell Biology and Vice Chair for Laboratory Medicine

    Dr. Hod’s research focuses on questions of clinical relevance to transfusion medicine from the perspective of iron biology. His group investigates safety and efficacy of both blood donations and blood transfusions. In particular, he utilizes mouse models and human studies to study questions related to storage of blood products, hemolytic transfusion reactions, red blood cell senescence, iron overload, and donor iron deficiency.

  • Krystalyn E. Hudson, PhD

    • Assistant Professor of Pathology and Cell Biology at CUMC

    Dr. Hudson’s research focuses on understanding the immune response to red blood cells (RBCs), which can be targeted for destruction by antibodies, causing severe morbidity and mortality. Her group investigates the mechanisms behind the production of RBC-specific antibodies, both autoantibodies and alloantibodies, with the goal of developing novel therapies or prophylactic strategies for patients with autoimmune hemolytic anemia (AIHA) or are exposed to RBC alloantigens through blood transfusion or pregnancy.

    Krystalyn Hudson, PhD
  • David J. Roh, MD

    • Assistant Professor of Neurology at CUMC

    Dr. Roh’s research focuses on understanding coagulopathy after intracerebral hemorrhage, improving laboratory and neuroimaging diagnostic strategies for ongoing bleeding risk, and improving hemorrhage control treatments for these patients to improve hemostasis and clinical outcomes. His translational laboratory leverages human observational studies as well as reductionist murine models to assess these questions in a bedside to bench investigative platform.

    David Rao - assistant professor of neurology at CUMC
  • Steven L. Spitalnik, MD

    • Professor of Pathology and Cell Biology

    Dr. Spitalnik’s interests initially focused on glycobiology, particularly the biosynthesis and immunology of glycoproteins and glycolipids. Over the last 20 years, he has used cell culture, mouse models, and studies of human volunteers and patients to investigate the consequences of RBC clearance, particularly following transfusions of refrigerator storage-damaged RBCs, during hemolytic transfusion reactions, in G6PD-deficiency, and in malaria. He is also interested in the effects of oxidative stress and iron biology on RBC resilience in vivo and in vitro. Finally, he participates in efforts to eradicate Rh disease, serving as Executive Director of the Worldwide Initiative for Rh Disease Eradication.

  • Elizabeth Stone, MD, PhD

    • Assistant Professor of Pathology and Cell Biology at CUMC

    Dr. Stone’s research focuses on platelet storage conditions and platelet utilization. With advances in medical care, the demand for platelets continues to increase. Her group investigates the effects of different platelet storage conditions on in vitro platelet properties and in vivo measures of platelet function. Utilizing a novel mouse model for platelet transfusion, she is particularly interested in investigating how platelet storage conditions may affect transfusion in different clinical scenarios and in platelet alloimmunization, with the ultimate goal to improve clinical outcomes for patients requiring platelet transfusions.

  • Tiffany A. Thomas, PhD

    • Assistant Professor of Pathology & Cell Biology at CUMC

    Dr. Thomas is an expert in lipid metabolism and RBC metabolism. Her research uses advanced analytical techniques such as stable isotopes and mass spectrometry to understand the relationship between lifestyle factors ,such as diet and exercise, on RBC metabolism and function. Dr. Thomas also serves as the Medical Director of the NYP/CUIMC Biochemical Genetics Laboratory, applying her expertise in biochemistry to diagnose metabolic disorders. Through her research, teaching, and clinical activities, Dr. Thomas contributes to the field of transfusion biology and advances our understanding of exercise and lipid metabolism's role in blood quality and overall health.

  • Stuart P. Weisberg, MD, PhD

    • Assistant Professor of Pathology & Cell Biology

    Proper establishment, maintenance and regulation of tissue adapted immune cells is essential for organ homeostasis, protection against infectious disease and prevention of cancer. My group focusses on the study of tissue immunity in humans, and the role of tissue immune cells in shaping protective and pathologic tissue immune responses within specialized tissue microenvironments. Our recent work has focused on pancreas tissue immunity - employing single cell RNA sequencing, multiplex immunohistochemistry, and functional analysis of tissue immune cells in vitro to define the functional and phenotypic diversity of pancreas immune cells, their response to toxic and metabolic stressors and role in pancreatic disease.

Current Lab Members

  • Azzurra Cottarelli, PhD

    • Associate Research Scientist

    Azzurra joined the Laboratory of Transfusion Biology in 2021 as an Associate Research Scientist. She got her PhD in Molecular Medicine from the European School of Molecular Medicine (SEMM) and University of Milan, Italy. She spent her career studying the how the Blood-Brain Barrier (BBB) develops and how its function gets disrupted in pathological conditions such as stroke. Azzurra’s current work is focused on the investigating how low hemoglobin concentrations affect the brain vascular response to intracerebral hemorrhage (ICH).

  • Flavia Dei Zotti, PhD

    • Postdoctoral Fellow

    Dr. Flavia Dei Zotti received her PhD in Biomedical and Pharmaceutical Sciences from UCLouvain, Belgium where she focused on cardiovascular biology. Now as a postdoctoral researcher in the Hudson group, she studies how failure of T cells tolerance to red blood cell antigens leads to autoimmunity.

  • Yona Feit

    • Clinical Research Coordinator

    Yona is a graduate of Washington University in St. Louis with a BA in Global Health and the History and Religion of Disease. She is also a recent MS Graduate from Columbia University in Narrative Medicine and a current Precision Medicine Associate Fellow. Her undergraduate and graduate research includes the history and culture of plague and pandemics and its impact on the modern COVID experience. Her current research interests include the study of iron deficiency of blood donors, pediatric and adult sickle cell anemia, genetics and quality of red blood cells, and chronic blood transfusions.

  • Daysha Fliginger

    • Clinical Research Coordinator

    Daysha is a graduate of Columbia University with a BA in Neuroscience. Her undergraduate research includes work with the Center for Advanced Laboratory Medicine at Columbia University Vagelos College of Physicians and Surgeons. Her current research interests include the study of transfusion biology and medicine specifically focused on sickle cell anemia, chronic blood transfusions and red blood cell quality.

  • Victoria Laurencin

    • Technician B

    Victoria is a graduate from Princeton University with a Bachelor of Arts in Molecular Biology. As a laboratory technician under Dr. Thomas, she studies environmental, dietary, and genetic factors that affect blood quality. Victoria dreams of becoming a physician and plans to apply to medical school this upcoming year. 

  • Adeyemi Oduwole

    • Clinical Research Coordinator

    Adeyemi is a graduate of the College of Charleston with a Bachelor of Arts in Biology (2019). Following graduation, he went on to complete a Master of Public Health at the Icahn School of Medicine at Mount Sinai (2021), where he focused on health promotion & disease prevention and additionally researched how COVID-19 exposure impacted Residents and Fellows during the first wave of the COVID-19 pandemic. Adeyemi joined the Laboratory of Transfusion Biology in 2022 as a Clinical Research Coordinator and plans to attend Medical School in the near future.  

  • Annie Qiu

    • Staff Associate II

    Annie is a graduate of Emory University with a Bachelor of Science in Biology. As an undergraduate in Dr. Douglas Graham's lab, she investigated tyrosine kinase signaling pathways in pediatric leukemia. Now, in the Hudson group, she researches the alloimmune response to red blood cells and reticulocytes. 

Former Lab Members

  • Francesca La Carpia

    • Principal Scientist, Regeneron Pharmaceutical, Inc

    The goal of the lab/research is to bridge basic science and final development of drug discovery throughout the generation of screening platforms aiming to the identify and strengthen a drug candidate in the therapeutic protein field.  

  • Dominique Gordy

    • MD/PhD student, Temple University

    Dominique is a graduate from Lafayette College with a BS in Neuroscience. Nika studied platelet biology, the application of animal models to platelet transfusion, and malaria infection as a laboratory technician under Dr. Stone. Dominique will begin her MD/PhD at Temple University in the fall of 2023.

  • Anabel Miller

    • MD student

    Anabel is a graduate of the University of Michigan with a Bachelor of Science in Microbiology. She created a red blood cell phenotyping assay adapted for flow cytometry in Dr. Hudson’s group. Anabel will begin medical school in the summer of 2023.

  • Chiara Moriconi

    • Scientist, Theolytics Ltd

    Chiara has an MSc. in Medical Biotechnologies (First Class Honours) from Catholic University Rome (Italy) along with PhD in Molecular Oncology from Cardiff University (UK). She completed her Postdoc in the Laboratory of Transfusion Biology in 2021 and moved back to Oxford to work as a scientist on cancer vaccines development in the private sector.

  • Maria Tredicine

    • Postdoctoral Fellow, CAST Center

    Dr. Maria Tredicine received her PhD in Experimental and Translational Medicine from the Università Cattolica del Sacro Cuore in Rome. She spent one year as a PhD visiting student in Dr. Hudson’s group at Columbia University, investigating the role of a subset of specialized CD4+ T cells in the pathogenesis of autoimmune hemolytic anemia (AIHA) and sickle cell disease (SCD). She is currently a Post-Doc at CAST center in Chieti.