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Low levels of serum transport proteins indicate catabolic protein status during induction therapy for acute
E K Koskelo1, U M Saarinen, M A Siimes
1Children's Hospital, University of Helsinki, Finland.
Insights
Children with acute lymphoblastic leukemia (ALL) show decreased protein levels during early treatment, indicating a catabolic state. Nutritional support may be crucial for managing these biochemical changes in pediatric cancer patients.
Area of Science:
- Biochemistry
- Pediatric Oncology
- Nutritional Science
Background:
- Acute lymphoblastic leukemia (ALL) is a common childhood cancer.
- Nutritional status is critical during cancer therapy, especially in pediatric patients.
- Serum proteins are key indicators of nutritional and metabolic status.
Purpose of the Study:
- To assess the protein nutritional status in children with newly diagnosed ALL during induction and consolidation therapy.
- To compare protein levels in ALL patients with a reference group of children with other cancers.
- To identify biochemical markers indicative of protein catabolism in pediatric ALL.
Main Methods:
- Longitudinal study of 12 children with newly diagnosed ALL and 12 children with other cancers.
- Measurement of serum total protein, albumin, transferrin, and prealbumin at multiple time points (0-24 weeks).
- Biochemical analysis to evaluate protein nutritional status and identify catabolic changes.
Main Results:
- Children with ALL exhibited low serum albumin and prealbumin at diagnosis.
- During ALL therapy, serum total protein and transferrin decreased, while prealbumin increased.
- ALL patients showed significantly lower serum total protein, albumin, and transferrin by week 8 compared to controls.
- Serum protein levels remained stable in the reference group of children with other malignancies.
Conclusions:
- Low serum transport protein levels in children with ALL suggest a catabolic protein state during early treatment phases.
- These findings highlight the importance of monitoring nutritional status in pediatric ALL patients undergoing therapy.
- Further research into nutritional interventions may be warranted to mitigate protein catabolism in this population.
Abstract:
Twelve children with newly diagnosed acute lymphoblastic leukemia (ALL) were followed during the first 24 weeks of induction and consolidation therapy. Twelve additional patients with other types of cancer, receiving no prednisone medication, served as a reference group. The serum total protein, albumin, transferrin, and prealbumin concentrations were measured at 0, 2, 4, 6-10, 16, and 24 weeks and used as biochemical indices of protein nutritional status. In all patients studied, serum albumin and prealbumin concentrations were low at diagnosis. Decreasing serum total protein and transferrin concentrations, stable low serum albumin, and increasing prealbumin levels were observed during the ALL induction therapy. In contrast, these protein levels remained stable in the children with other malignancies. By week 8 the patients with ALL had lower serum total protein, albumin, and transferrin than the children with other types of cancer. We conclude that the low levels of the serum transport proteins indicate catabolic protein status in children with ALL during early weeks of therapy.