Abstract
The recently described single-nucleotide polymorphism CT60, located in the 3′-untranslated region of the CTLA4 (cytotoxic T-lymphocyte antigen 4 ) gene, has been associated with susceptibility to several autoimmune diseases and has also been shown to be involved in immune responses following allogeneic stem cell transplantation (SCT). However, the contribution of the CTLA4 genotype to the control of minimal residual disease in patients with acute myeloid leukemia (AML) has yet to be explored. We investigated the association between the CTLA4 CT60 A/G genotype and the incidence of leukemic relapse in 143 adult patients with AML in first complete remission after the same chemotherapy protocol (CETLAM LAM’03). The CT60 AA genotype was associated with a higher rate of leukemic relapse (56.4 vs 35.6%, P=0.004; hazard ratio (HR)=2.64, 95% confidence interval (CI)=1.36–5.14) and lower overall survival at 3 years (39.4 vs 68.4%, P=0.004; HR=2.80, 95% CI=1.39–5.64). This is the first study to report an association between polymorphisms at CTLA-4 and AML relapse.
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Acknowledgements
This study has been financed by Grant FIS PI050939 from the Fondo de Investigaciones Sanitarias, Instituto de Salud Carlos III, Ministerio de Sanidad y Consumo.
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The list of participant centres and current group members appears in Appendix 1.
Appendix 1
Appendix 1
The centers and investigators contributing to the CETLAM study were as follows: Institut Català d'Oncologia (ICO) Hospital Josep Trueta, Girona (David Gallardo, Ramón Guardia, Cristalina Fernández); Hospital de la Santa Creu i Sant Pau, Barcelona (Salut Brunet, Josep F Nomdédeu, Montserrat Hoyos, Anna Aventín, Jorge Sierra); Hospital Clínic, Barcelona (Jordi Esteve, Mireia Camós, María Rozman, Neus Villamor, Dolors Costa); ICO Hospital Germans Trias i Pujol, Badalona (Josep M Ribera, Isabel Granada, Albert Oriol); ICO/Duran i Reynals, L’Hospitalet de Llobregat (Joan Berlanga, Rafael Duarte, Esther Alonso); Hospital Vall d’Hebrón, Barcelona (Javier Bueno, Eva Sánchez, Teresa Vallespí); Hospital del Mar, Barcelona (Carmen Pedro, Lourdes Florensa, Francesc Soler); Clínica Teknon, Barcelona (Pilar Vivancos); Hospital Juan Canalejo, A Coruña (Pio Torres); Hospital Clínico, Málaga (M. Paz Queipo De Llano); Hospital Clínico Universitario, Valencia (Mar Tormo); Hospital Son Dureta, Palma (Joan Besalduch, Marta Barnués); Hospital Son Llatzer, Palma (Joan Bargay); Hospital Joan XXIII, Tarragona (Andreu Llorente, Lourdes Escoda); Hospital Arnau de Vilanova, Lleida (Antoni García-Guiñón); Hospital Verge de la Cinta, Tortosa (Llorenç Font); Hospital Mutua Terrassa, Terrassa (Josep M Martí-Tutusaus, Cristina Estany). The laboratory work has been carried out at the Alloreactivity Unit, Laboratori de Recerca Translacional, ICO (Arianne Pérez-García, David Gallardo).
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Pérez-García, A., Brunet, S., Berlanga, J. et al. CTLA-4 genotype and relapse incidence in patients with acute myeloid leukemia in first complete remission after induction chemotherapy. Leukemia 23, 486–491 (2009). https://doi.org/10.1038/leu.2008.339
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DOI: https://doi.org/10.1038/leu.2008.339
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