International Journal of Molecular Sciences Article Role of HMOX1 Promoter Genetic Variants in Chemoresistance and Chemotherapy Induced Neutropenia in Children with Acute Lymphoblastic Leukemia Karolina Bukowska-Strakova 1,* , Joanna Włodek 1, Ewelina Pitera 1 , Magdalena Kozakowska 2, Anna Konturek-Cie´sla 2, Maciej Cie´sla 2, Monika Go ´nka 2, Witold Nowak 2 , Aleksandra Wieczorek 3 , Katarzyna Pawi ´nska-W˛asikowska 3, Alicja Józkowicz 2,* and Maciej Siedlar 1,* 1 Department of Clinical Immunology, Institute of Pediatrics, Jagiellonian University Medical College, 31-663 Kraków, Poland;
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[email protected] (M.S.); Tel.: +48-(12)-664-6411 (A.J.); +48-(12)-658-2486 (M.S.); Fax: +48-(12)-658-1756 (M.S.) Citation: Bukowska-Strakova, K.; Włodek, J.; Pitera, E.; Kozakowska, Abstract: Whilst the survival rates of childhood acute lymphoblastic leukemia (ALL) have increased M.; Konturek-Cie´sla,A.; Cie´sla,M.; remarkably over the last decades, the therapy resistance and toxicity are still the major causes Go´nka,M.; Nowak, W.; Wieczorek, of treatment failure.