It can be concluded that sOB-R has a modulatory effect on leptin in PEM children during nutritional recovery and participates in their adaptive survival mechanisms. Leptin and the molar excess of sOB-R over leptin are better biomarkers of nutritional status than IGF-I in PEM children during nutritional recovery.
There is a striking disparity in survival rates for children in low- and middle-income countries (LMICs) compared with high-income countries (HICs). Many of the contributing factors are preventable, including the comorbidity of malnutrition. There are emerging data that malnutrition, as reflected in body composition changes, impacts survival of cancer. However, not enough priority is given to nutrition management of children with cancer, particularly in LMICs. The primary purpose of this article is to review the current knowledge on childhood cancer and body composition in LMICs and identify priorities for future research into the interlinking associations between cancer, body composition, and clinical outcomes for childhood cancer patients. Evidence will ensure feasible and effective nutrition management is prioritized in childhood cancer centers in LMICs and contribute to improving outcomes for children with cancer.
Acute myeloid leukemia (AML) is a malignant disorder derived from neoplastic myeloid progenitor cells characterized by abnormal proliferation and differentiation. Although novel therapeutics have recently been introduced, AML remains a therapeutic challenge with insufficient cure rates. In the last years, immune-directed therapies such as chimeric antigen receptor (CAR)-T cells were introduced, which showed outstanding clinical activity against B-cell malignancies including acute lymphoblastic leukemia (ALL). However, the application of CAR-T cells appears to be challenging due to the enormous molecular heterogeneity of the disease and potential long-term suppression of hematopoiesis. Here we report on the generation of CD33-targeted CAR-modified natural killer (NK) cells by transduction of blood-derived primary NK cells using baboon envelope pseudotyped lentiviral vectors (BaEV-LVs). Transduced cells displayed stable CAR-expression, unimpeded proliferation, and increased cytotoxic activity against CD33-positive OCI-AML2 and primary AML cells in vitro. Furthermore, CD33-CAR-NK cells strongly reduced leukemic burden and prevented bone marrow engraftment of leukemic cells in OCI-AML2 xenograft mouse models without observable side effects.
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