Lab Members

Lena Winestone, MD, MSHP

Principal Investigator

Assistant Professor

Blood & Marrow Transplant; Pediatric Malignancies

Dr. Winestone is an Assistant Professor of Pediatrics in the Division of Allegy, Immunology, and Bone & Marrow Transplant at the University of California San Francisco. Dr. Winestone received her MD from Stanford University School of Medicine with a focus in International and Community Health. Her research explores racial, ethnic, and socioeconomic disparities in access to care and outcome of leukemia and lymphoma treatment. She studies access to care across the continuum of pediatric cancer from diagnosis and clinical trial enrollment through treatment and relapse to salvage therapies.

Maria Castellanos, MD

HS Asst Clinical Professor


Dr. Maria Castellanos is Assistant Clinical Professor in the Division of Pediatric Hematology Oncology at University of California, San Francisco. She earned her Bachelor of Sciences degree from the University of Nevada, Las Vegas and her MD degree from Howard University College of Medicine. She completed her Pediatrics Residency at Stanford University and her Pediatric Hematology Oncology Fellowship at Texas Children’s Hospital at Baylor College of Medicine. Her research interests are in evaluating geospatial disparities in pediatric cancers, with a specific focus in pediatric leukemias.

Anya Platt, MD (she/her)

Pediatric Hematology/Oncology Fellow

Dr. Platt was a pediatric resident at the University of California, San Francisco. She earned her medical degree from Thomas Jefferson University and plans to pursue fellowship training in pediatric hematology/oncology. Her current research focuses on the ways in which families have been financially impacted by a pediatric cancer diagnosis during the COVID era. 

Jacklyn Sanchez Alvarez, BS

Clinical Research Coordinator


Jacklyn is a Clinical Research Coordinator (CRC) in the Division of Bone & Marrow Transplant at the University of California, San Francisco. She graduated from the University of California San Diego, with a degree in Public Health. She is the primary CRC for the research group and helps with patient recruitment, data collection, and IRB/regulatory matters.

Tanushree Banerjee, PhD


Dr. Banerjee is a health research scientist in the CHERO group. She received her PhD in Biostatistics from University of Delhi, India. Her research portfolio is focused on the health implications of unhealthy diet, in particular diet-dependent acid load and acid-inducing inflammatory diets on the progression of chronic disease. She offers her methodological expertise as well as her biostatistical experience in utilizing methods for analyzing the data from the different projects in this group.  

Chynna Swift, BS (she/her)

Medical Student 

Chynna is a medical student at the University of California, San Francisco. She earned her Bachelor of Science degree at the University of California, Los Angeles where she studied microbiology, immunology, and molecular genetics. Her research interests surround exploring racial and ethnic disparities in healthcare treatment and outcomes. Her current research focuses on the ways in which neighborhood socioeconomic status is associated with illness acuity and outcomes in pediatric leukemia.