The career development activities outlined in this K23 proposal will provide didactic and experiential training under a mentored experience in several areas new to Dr. Sung Choi. She will acquire biostatistical skills and knowledge in specific areas of clinical research, learn new laboratory techniques, and develop ethical principles and research integrity essential for the conduct of human subject research. Thus, the comprehensive curriculum will complement her existing skills with new and advanced techniques and approaches with the goal of developing an independent, patient-oriented research career as a translational investigator in the field of bone marrow transplantation (BMT). With support of the K23, Dr. Choi will conduct a mentored patient-oriented research project in alignment with her training activities and overall career goals. Allogeneic BMT is a potentially curative therapy for many non-hematologic and hematologic diseases. Graft-versus-host disease (GVHD) remains a major cause of morbidity and mortality after allogeneic BMT and prevents this curative therapy from wider application. Current pharmacologic agents for GVHD prevention and treatment primarily target an essential effector for GVHD, donor T cells. Other key effectors for GVHD, and therefore potential therapeutic targets, are antigen presenting cells (APCs). Therefore, agents that target the allostimulatory functions of APCs may be an innovative therapeutic potential in the GVH process. Histone deacetylase (HDAC) inhibitors are novel anti-tumor agents that appear to be well-tolerated in human clinical trials. However, their immunomodulatory effects have thus far been largely unrecognized. Pre-clinical data generated in the laboratory of Dr. Reddy, Dr. Choi's mentor, form the rationale for this proposal. Dr. Choi will test the central hypothesis that HDAC inhibition will reduce the severity of GVHD by suppressing the functions of human APCs, the key mediators of GVHD, in an innovative Phase II clinical trial. These studies could allow for the development of a novel class of immunomodulatory drugs for attenuating GVHD.
The specific aims of the clinical trial are: 1) To conduct a Phase II trial using vorinostat in addition to standard immunosuppression to prevent GVHD in related donor reduced intensity conditioning (RIC) BMT. 2) To determine the cellular and plasma markers of deacetylase inhibition on inflammation after vorinostat administration following related donor RIC BMT. In summary, this K23 will provide Dr. Choi with the time and resources to: 1) execute a novel clinical trial and perform robust correlative studies within a well-defined mentoring structure; 2) obtain formal training in clinical research design and statistical analyses; 3) increase her research productivity; 4) develop skills in manuscript and grant preparation; and 5) evolve into an independent investigator. Allogeneic bone marrow transplantation is a potentially curative therapy for many malignant and nonmalignant conditions whose applicability has been impeded by the development of its most serious complication, graft-versus-host disease (GVHD). A novel preventive strategy to mitigate GVHD will allow for better harnessing of this effective therapeutic modality.
Allogeneic bone marrow transplantation is a potentially curative therapy for many malignant and nonmalignant conditions whose applicability has been impeded by the development of its most serious complication, graft-versus-host disease (GVHD). A novel preventive strategy to mitigate GVHD will allow for better harnessing of this effective therapeutic modality.
|Raj, Minakshi; Choi, Sung Won; Gurtekin, Tuba Suzer et al. (2018) Improving the Informed Consent Process in Hematopoietic Cell Transplantation: Patient, Caregiver, and Provider Perspectives. Biol Blood Marrow Transplant 24:156-162|
|Abu Zaid, Mohammad; Wu, Juan; Wu, Cindy et al. (2017) Plasma biomarkers of risk for death in a multicenter phase 3 trial with uniform transplant characteristics post-allogeneic HCT. Blood 129:162-170|
|Maher, Molly; Kaziunas, Elizabeth; Ackerman, Mark et al. (2016) User-Centered Design Groups to Engage Patients and Caregivers with a Personalized Health Information Technology Tool. Biol Blood Marrow Transplant 22:349-358|
|Song, Yeohan; Magenau, John; Li, Yumeng et al. (2016) FLT3 mutational status is an independent risk factor for adverse outcomes after allogeneic transplantation in AML. Bone Marrow Transplant 51:511-520|
|Chughtai, K; Song, Y; Zhang, P et al. (2016) Analytic morphomics: a novel CT imaging approach to quantify adipose tissue and muscle composition in allogeneic hematopoietic cell transplantation. Bone Marrow Transplant 51:446-50|
|Platt, J; Thiel, D B; Kardia, S L R et al. (2016) Innovating consent for pediatric HCT patients. Bone Marrow Transplant 51:885-8|
|Kaziunas, Elizabeth; Hanauer, David A; Ackerman, Mark S et al. (2016) Identifying unmet informational needs in the inpatient setting to increase patient and caregiver engagement in the context of pediatric hematopoietic stem cell transplantation. J Am Med Inform Assoc 23:94-104|
|Gleimer, M; Li, Y; Chang, L et al. (2015) Baseline body mass index among children and adults undergoing allogeneic hematopoietic cell transplantation: clinical characteristics and outcomes. Bone Marrow Transplant 50:402-10|
|Maher, Molly; Hanauer, David A; Kaziunas, Elizabeth et al. (2015) A Novel Health Information Technology Communication System to Increase Caregiver Activation in the Context of Hospital-Based Pediatric Hematopoietic Cell Transplantation: A Pilot Study. JMIR Res Protoc 4:e119|
|Choi, Sung Won; Gatza, Erin; Hou, Guoqing et al. (2015) Histone deacetylase inhibition regulates inflammation and enhances Tregs after allogeneic hematopoietic cell transplantation in humans. Blood 125:815-9|
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