Maternal ancestry and hematological cancer risk: Case-control study in an Argentinean population

CERLIANI, MARÍA BELÉN; MAYORDOMO, ANDREA CONSTANZA; SANCHEZ DOVA, ANACLARA; SOAREZ, JULIETA NATALIA; FUHR ETCHEVERRY, JOSEFINA; PIÑERO, TAMARA ALEJANDRA; CAJAL, ANDREA ROMINA; JAUK, FEDERICO; GARCÍA-RIVELLO, HERNÁN; VACCARO, CARLOS ALBERTO; RICHARD, SILVINA MARIEL; BRAVI, CLAUDIO MARCELO; PAVICIC, WALTER HERNÁN

PERSONALIZED MEDICINE

FUTURE MEDICINE LTD

Año: 2021 vol. 18 p. 269 - 281

1741-0541

Aim: We investigated the role of maternal ancestry in neoplastic hematological malignancies (HMs) risk in a population from Central Argentina. Materials & methods: We analyzed 125 cases with HMs and 310 controls from a public hospital, and a set of 202 colorectal, breast, lung, and hematologic cancer patients from a private hospital. Results: A decreased risk for HMs was associated with the Native American haplogroup B2 (odds ratio = 0.49; 95% CI: 0.25-0.92; p = 0.02). The sub-Saharan African parahaplogroup L was associated with higher susceptibility for disease (odds ratio = 3.10; 95% CI: 1.04-9.31; p = 0.043). Although the mean ancestral proportions in the total studied population was as published (61.7% Native American, 34.6% European and 3.7% African), an unequal distribution was observed between hospitals. Conclusion: We confirmed the tri-hybrid nature of the Argentinean population, with proportions varying within the country. Our finding supports the notion that associated haplogroup is population and cancer specific.