Multiple myeloma risk linked to DNA damage response genes

Area of Science:

• Genetics
• Oncology
• Molecular Biology

Background:

• DNA damage response genes (DDRG) are linked to cancer risk and aggressiveness.
• Their role in multiple myeloma (MM) remains underexplored.

Purpose of the Study:

• To investigate the association between pathogenic variations in candidate DDRG and multiple myeloma (MM).
• To explore the clinical implications of these genetic variations in MM patients.

Main Methods:

• Analysis of germline pathogenic variations in nine DDRG.
• Utilized a dataset of 3,446 MM cases and 323,233 cancer-free controls.

Main Results:

• Increased MM risk associated with rare pathogenic mutations in TP53, ATM, CHEK2, KDM1A, and ARID1A.
• These variants were enriched in early-onset MM or those with a family history.
• TP53 or ATM germline mutations correlated with worse overall survival in MM patients.

Conclusions:

• Suggests that the phenotypic spectrum of certain DDRG extends to include multiple myeloma.
• Identified germline predisposition genes for targeted screening in high-risk individuals, particularly those with early-onset MM or a family history.