Hemalatha G. Rangarajan

ORCID: 0000-0003-3371-2920
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About
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Research Areas
  • Hematopoietic Stem Cell Transplantation
  • Acute Lymphoblastic Leukemia research
  • Hemoglobinopathies and Related Disorders
  • Acute Myeloid Leukemia Research
  • Childhood Cancer Survivors' Quality of Life
  • Prenatal Screening and Diagnostics
  • Immune Cell Function and Interaction
  • Renal Transplantation Outcomes and Treatments
  • Neutropenia and Cancer Infections
  • Blood groups and transfusion
  • Cytomegalovirus and herpesvirus research
  • Immunodeficiency and Autoimmune Disorders
  • CAR-T cell therapy research
  • Mycobacterium research and diagnosis
  • T-cell and B-cell Immunology
  • Blood disorders and treatments
  • Neurological Complications and Syndromes
  • Platelet Disorders and Treatments
  • Polyomavirus and related diseases
  • Transplantation: Methods and Outcomes
  • Lymphoma Diagnosis and Treatment
  • Chronic Myeloid Leukemia Treatments
  • Autoimmune and Inflammatory Disorders Research
  • Complement system in diseases
  • Traumatic Brain Injury and Neurovascular Disturbances

Nationwide Children's Hospital
2016-2025

The Ohio State University
2016-2025

Indian Army
2011-2024

Creative Commons
2023

Army Hospital Research and Referral
2023

Hospital for Sick Children
2021

Penn State Milton S. Hershey Medical Center
2021

European Society for Blood and Marrow Transplantation
2021

Uppsala University
2021

Bexley Hall
2019

Abstract Mesenchymal stem/stromal cells (MSCs) are widely studied by both academia and industry for a broad array of clinical indications. The collective body data provides compelling evidence the safety MSC therapy. However, generally accepted proof therapeutic efficacy has not yet been reported. In an effort to generate more effective cell product, investigators focused on modifying processing protocols enhance intrinsic biologic activity. Here, we report Good Manufacturing...

10.1002/sctm.16-0485 article EN cc-by-nc-nd Stem Cells Translational Medicine 2017-09-09

Abstract There has been an increase in volume as well improvement overall survival (OS) after hematopoietic cell transplantation (HCT) for hematologic disorders. It is unknown if these changes have affected racial/ethnic minorities equally. In this observational study from the Center International Blood and Marrow Transplant Research of 79 904 autologous (auto) 65 662 allogeneic (allo) HCTs, we examined rates change autoHCT alloHCT over time trends OS 4 groups: non-Hispanic Whites (NHWs),...

10.1182/bloodadvances.2023012469 article EN cc-by-nc-nd Blood Advances 2024-04-25

Post-transplantation cyclophosphamide (PTCy) has been shown to effectively control graft-versus-host disease (GvHD) in haploidentical (Haplo) transplantations. In this retrospective registry study, we compared GvHD organ distribution, severity, and outcomes patients with occurring after Haplo transplantation PTCy prophylaxis (Haplo/PTCy) versus HLA-matched unrelated donor conventional (MUD/conventional). We evaluated 2 cohorts: grade 4 acute (aGvHD) including 264 1163 recipients of MUD...

10.1016/j.jtct.2022.07.013 article EN cc-by-nc-nd Transplantation and Cellular Therapy 2022-07-17

CARMIL2 deficiency is a rare combined immunodeficiency (CID) characterized by defective CD28-mediated T cell co-stimulation, altered cytoskeletal dynamics, and susceptibility to Epstein Barr Virus smooth muscle tumors (EBV-SMTs). Case reports associated with EBV-SMTs are limited. We describe herein novel homozygous variant (c.1364_1393del) in two Saudi Arabian male siblings born consanguineous parents who developed EBV-SMTs. protein expression was significantly reduced CD4+ cells CD8+ cells....

10.3389/fimmu.2020.00884 article EN cc-by Frontiers in Immunology 2020-06-18
Romain Lévy Florian Gothe Mana Momenilandi Thomas Magg Marie Materna and 95 more Philipp Peters Johannes Raedler Quentin Philippot Anita Rack-Hoch David Langlais Mathieu Bourgey Anna-Lisa Lanz Masato Ogishi Jérémie Rosain Emmanuel Martin Sylvain Latour Natasha Vladikine Marco Distefano Taushif Khan Franck Rapaport M. Schulz Ursula Holzer Anders Fasth Georgios Sogkas Carsten Speckmann Arianna Troilo Venetia Bigley Anna Roppelt Yael Dinur-Schejter Ori Toker Karen Helene Bronken Martinsen Roya Sherkat Ido Somekh Raz Somech Dror S. Shouval Jörn‐Sven Kühl Winnie Ip Elizabeth McDermott Lucy Cliffe Ahmet Özen Safa Barış Hemalatha G. Rangarajan Emmanuelle Jouanguy Anne Puel Jacinta Bustamante Marie‐Alexandra Alyanakian Mathieu Fusaro Yi Wang Xiao‐Fei Kong Aurelié Cobat David Boutboul Martin Castelle Claire Aguilar Olivier Hermine Morgane Cheminant Felipe Suárez Alişan Yıldıran Aziz Bousfiha Hamoud Al‐Mousa Fahad Alsohime Deniz Çağdaş Roshini S. Abraham Alan P. Knutsen Børre Fevang Sagar Bhattad Ayça Kıykım Baran Erman Tuğba Arıkoğlu Ekrem Ünal Ashish Kumar Christoph B. Geier Ulrich Baumann Bénédicte Neven Julie Calas Elizabeth Feuille Angela Chan Gözde Yeşil Justine Nammour Élise Bandet Capucine Pïcard Ibtihal Benhsaien Peter Lang Faranaz Atschekzei Klaus Warnatz Sophie Hambleton Mukesh Desai Elif Karakoç-Aydıner Burcu Kolukısa Saleh Al‐Muhsen Mohammed F. Alosaimi Funda Çipe Anas M. Alazami Gonca Hancıoğlu Bilge Can Meydan Hanne Sørmo Sorte Asbjørg Stray‐Pedersen Geetha Mammayil Nazan Tökmeci Anna Shcherbina Polina Stepensky

Patients with inherited CARMIL2 or CD28 deficiency have defective T cell signaling, but their immunological and clinical phenotypes remain largely unknown. We show that only one of three isoforms is produced functional across leukocyte subsets. Tested mutant alleles from 89 patients 52 families impair canonical NF-κB not AP-1 NFAT activation in cells stimulated via CD28. Like CD28-deficient patients, CARMIL2-deficient display recalcitrant warts low blood counts CD4+ CD8+ memory TREGs. Unlike...

10.1084/jem.20220275 article EN cc-by The Journal of Experimental Medicine 2022-12-14

To design and test a metric that reflects the overall quality safety performance of our blood marrow transplant program (BMT) use this to enhance care provided patients. The BMT index (BMTI) aggregates events missed opportunities for best practices into composite score clinical program, irrespective type or patient outcome. We selected 13 domains divided them based on time in continuum. journey has 3 general spheres: (1) pretransplant, (2) admission, (3) posttransplant follow-up long-term...

10.1097/pq9.0000000000000811 article EN cc-by-nc-nd Pediatric Quality and Safety 2025-04-30

Socioeconomic status (SES) and race/ethnicity have been associated with the outcomes of allogeneic hematopoietic stem cell transplantation (allo-HCT). Certain aspects graft-versus-host disease (GVHD) management, such as need for long-term care, prolonged immunosuppressive treatment, close follow-up complications, may exacerbate disparities. Adults (≥18 years) reported to Center International Blood Marrow Transplant Research who underwent a first allo-HCT acute leukemia, myelodysplastic...

10.1182/bloodadvances.2024013074 article EN cc-by-nc-nd Blood Advances 2024-05-22

To examine activity of ibrutinib in steroid-refractory chronic GVHD (SR-cGVHD) after FDA approval, we conducted a multicenter retrospective study. Data were standardly collected (N=270 from 19 centers). Involved organs included skin (75%), eye (61%), mouth (54%), joint/fascia (47%), GI (26%), lung (27%), liver (19%), genital (7%), other (4.4%). NIH severity was mild 5.7%, moderate 42%, severe 53%. 39% had overlap subtype. KPS ≥ 80% 72%. Median prednisone (mg/kg) 0.21 (0-2.27). Ibrutinib...

10.1182/bloodadvances.2024014374 article EN cc-by-nc-nd Blood Advances 2024-10-25

ABSTRACT Background In this study, we compared outcomes of intensified myeloablative conditioning regimens using large registry data from Japan (Japanese Society for Transplantation and Cellular Therapy) the United States (Center International Blood Marrow Transplant Research). Methods Adult patients who underwent their first allogeneic hematopoietic stem cell transplantation (HSCT) acute leukemia in remission between 2010 2018 cyclophosphamide plus total‐body irradiation (CY/TBI),...

10.1002/jha2.70061 article EN cc-by-nc-nd eJHaem 2025-05-28
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