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Children's Mercy Kansas City

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2023

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Full-Text Articles in Oncology

Understanding Macrophage Phagocytosis In Pediatric Leukemia, Molly Leyda, Jacqelyn Nemechek, John Szarejko, Fang Tao, Tykeem Manor, Douglas Myers, John M. Perry Nov 2023

Understanding Macrophage Phagocytosis In Pediatric Leukemia, Molly Leyda, Jacqelyn Nemechek, John Szarejko, Fang Tao, Tykeem Manor, Douglas Myers, John M. Perry

Posters

Macrophages are a diverse and widespread type of innate immune cell which play an important role in homeostasis and defense. In a process called phagocytosis, macrophages engulf dying cells, foreign substances, and pathogens. Importantly, macrophages can present antigens from phagocytosed cells allowing them to initiate an adaptive immune response against remaining cells of the same type. Despite the immunosuppressive nature of the tumor microenvironment, macrophages often infiltrate tumors where they can either promote or inhibit cancer development, though the specific conditions influencing their pro- vs anti-cancer activity remain enigmatic. Recently, macrophages have been brought into the spotlight of immunotherapy research …


A Genomics Driven Pluripotent Stem Cell Model Of Infant Acute Lymphoblastic Leukemia, Meagan Vacek, Jacqelyn Nemechek, Julia Draper, Irina Pushel, Bradley Thornton, Molly Leyda, Priyanka Prem Kumar, Midhat S. Farooqi, Jay L. Vivian, Erin M. Guest, John M. Perry Sep 2023

A Genomics Driven Pluripotent Stem Cell Model Of Infant Acute Lymphoblastic Leukemia, Meagan Vacek, Jacqelyn Nemechek, Julia Draper, Irina Pushel, Bradley Thornton, Molly Leyda, Priyanka Prem Kumar, Midhat S. Farooqi, Jay L. Vivian, Erin M. Guest, John M. Perry

Posters

Acute lymphoblastic leukemia in infants (iALL) is a high-risk subtype of childhood leukemia, with poor survival outcomes despite intensive therapies. Rearrangement of KMT2A (KMT2A-r) on chromosome 11q23 is the most frequent cytogenetic abnormality in iALL, occurring in 70% of cases. KMT2A-r is associated with chemotherapy resistance, early relapse, and rapid leukemic progression, all of which contribute to poor survival outcomes. The most common KMT2A-r in iALL is KMT2A::AFF1 (MLL::AF4), derived from t(4;11)(q21;23) and arises in utero as shown in multiple clinical studies. Infant ALL’s cell of origin is thought to be a very early hematopoietic precursor, with transcriptomic studies of …


Psychosocial Needs Of Pediatric Patients With Cancer Predisposition Syndromes: Standardized Screening Needed, Meredith Ehrhardt, Mirae Fornander, Rachel Moore Mar 2023

Psychosocial Needs Of Pediatric Patients With Cancer Predisposition Syndromes: Standardized Screening Needed, Meredith Ehrhardt, Mirae Fornander, Rachel Moore

Posters

Introduction Cancer predisposition syndromes (CPS; e.g., Li-Fraumeni syndrome, Von Hippel-Lindau syndrome) require routine, standardized medical monitoring with accompanying unique, complex psychosocial needs (e.g., family medical needs). Despite limited research within pediatric populations, emerging literature has begun to support the benefit of routine psychosocial screening in this population. Very few pediatric CPS clinics with dedicated psychosocial care (i.e., psychology) exist in the U.S. and there is currently no standard of care for psychosocial support of CPS patients. This study aims to better understand the psychosocial needs of pediatric CPS patients and support the need for a standardized psychosocial screening protocol among …