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Original Article – Research

Genetic polymorphisms in genes of class switch recombination and multiple myeloma risk and survival: an IMMEnSE study

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Pages 1803-1811 | Received 25 Jul 2018, Accepted 14 Nov 2018, Published online: 11 Jan 2019
 

Abstract

Genetic variants in genes acting during the maturation process of immature B-cell to differentiated plasma cell could influence the risk of developing multiple myeloma (MM). During B-cell maturation, several programmed genetic rearrangements occur to increase the variation of the immunoglobulin chains. Class switch recombination (CSR) is one of the most important among these mechanisms. Germline polymorphisms altering even subtly this process could play a role in the etiology and outcome of MM. We performed an association study of 30 genetic variants in the key CSR genes, using 2632 MM patients and 2848 controls from the International Multiple Myeloma rESEarch (IMMEnSE) consortium, the Heidelberg MM Group and the ESTHER cohort. We found an association between LIG4-rs1555902 and decreased MM risk, which approached statistical significance, as well as significant associations between AICDA-rs3794318 and better outcome. Our results add to our knowledge on the genetic component of MM risk and survival.

Additional information

Funding

This work was partially supported by intramural funds of DKFZ, by grants PI12/02688 and PI17/02276 from Fondo de Investigaciones Sanitarias (Madrid, Spain), Instituto de Salud Carlos III, co-funded by FEDER funds –a way to build Europe– grant PI14-00613 and Agency for Management of University and Research Grants (AGAUR) of the Catalan Government grant 2017SGR723. The ESTHER study was funded by grants from the Baden-Württemberg state Ministry of Science, Research and Arts (Stuttgart, Germany), the Federal Ministry of Education and Research (Berlin, Germany), the Federal Ministry of Family Affairs, Senior Citizens, Women and Youth (Berlin, Germany) and the Saarland Ministry of Social Affairs, Health, Women and Family (Saarbrücken, Germany).

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