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Insulin-like growth factor binding protein-3 predicts survival from acute childhood leukemia
E Petridou1, A Skalkidou, N Dessypris
1Department of Hygiene and Epidemiology, Athens University Medical School, Athens, Greece. epetrid@atlas.uoa.gr
Insights
Insulin-like growth factor binding protein-3 (IGFBP-3) is linked to better survival in childhood leukemia. Higher IGFBP-3 levels correlate with a reduced risk of death, suggesting its role in predicting outcomes for pediatric leukemia patients.
Area of Science:
- Pediatric Oncology
- Endocrinology
- Molecular Biology
Background:
- The insulin-like growth factor (IGF) system plays a role in cell growth and development.
- Components of the IGF system, including IGF-1, IGF-2, and IGF binding proteins, are implicated in various cancers.
- Understanding these components' roles in childhood leukemia is crucial for improving patient outcomes.
Purpose of the Study:
- To determine if IGF-1, IGF-2, and IGF binding protein-3 (IGFBP-3) are associated with survival rates in children diagnosed with acute leukemia.
- To investigate the prognostic value of IGF system components in pediatric leukemia.
Main Methods:
- A cohort of 116 children (0-14 years) with newly diagnosed acute childhood leukemia was studied.
- Measurements of IGF-1, IGF-2, and IGFBP-3 were taken at diagnosis.
- Patients were followed until death or March 31, 1998, with clinical data also collected.
Main Results:
- A statistically significant inverse association was found between IGFBP-3 levels and survival in childhood leukemia patients (p < 0.05).
- Each one standard deviation increase in IGFBP-3 was associated with a 65% reduction in the hazard of death.
- Neither IGF-1 nor IGF-2 showed a significant association with survival in this cohort.
Conclusions:
- IGFBP-3 is a plausible independent predictor of survival in childhood leukemia.
- IGFBP-3's role in modulating IGF bioavailability and its potential proapoptotic effects support its prognostic significance.
- Further research into IGFBP-3's mechanisms in leukemia could lead to novel therapeutic strategies.
Objective:
To investigate whether the three principal components of the insulin-like growth factor (IGF) system, IGF-1, IGF-2 and IGF binding protein-3 (IGFBP-3), are associated with survival from childhood leukemia.
Patients And Methods:
116 children, 0--14 years old, with newly diagnosed and bone-marrow-biopsy-confirmed acute childhood leukemia between 1993 and 1996 were followed up until death or March 31, 1998. IGF-1, IGF-2 and IGFBP-3 were measured at diagnosis and clinical data, including presence of hepatosplenomegaly and number of white blood cells, were available.
Results:
After controlling for gender, age, indicators of clinical severity and the other measured components of the IGF system there was a statistically significant (p < 0.05) inverse association of IGFBP-3 with survival. An increment of one standard deviation in IGFBP-3 was associated with a 65% reduction of the death hazard among the children with leukemia. Neither IGF-1 nor IGF-2 was associated with survival in this data set.
Conclusion:
The presented empirical evidence in conjunction with the fact that IGFBP-3 modulates IGF-1 and IGF-2 bioavailability and is likely to have proapoptotic effects makes this compound a plausible independent predictor of survival from childhood leukemia.