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Background <p>Several factors contribute to the development of malignant lymphomas including environmental exposures, bacterial and viral infections, as well as familial and genetic factors.</p> Main body <p>Numerous somatic variants are involved in lymphomagenesis, and an increasing number of germline variants predisposing patients to lymphoid neoplasm have been identified. Although most lymphomas arise sporadically, epidemiological studies have linked a familial history of lymphomas and other hematological tumors with an increased lymphoma risk. Although rare, familial clustering of malignant lymphoma is well documented, and the constellations suggest inherited risk factors. Recent technological advancements have improved our ability to identify genetic factors associated with lymphoma that overall lead to a better understanding of genetic susceptibility for these entities. In this context, we here provide a comprehensive perspective on lymphoma risk factors to support improved lymphoma risk assessment and testing. A dedicated clinical management could influence future advances in lymphoma therapies and might also prevent severe toxicity and secondary malignancies. However, to date, only few susceptibility genes for malignant lymphomas have been identified. Highly penetrant mutations in known genes cannot account for most of the excess in a polygenic and heterogenic disease such as cancer. High-throughput sequencing identifies pathogenic variants that may constitute most low-penetrance alleles. However, their detection requires many well-characterized cases and controls. In this review, we therefore also include a short discussion on a Swiss cohort where we prospectively collect and samples for genetic data from individuals with a family history of lymphoma. We are convinced that such an approach is more informative and feasible than a population-based project with unselected cases and aim to better inform both genetic counsellors and oncologists.</p> Conclusion <p>Inherited genetic factors contribute to lymphoma risk in a subset of patients. Improved identification of susceptibility variants, particularly through family-based studies, may enhance risk assessment and inform personalized clinical management.</p>

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Familial lymphoma and genetic predisposition: an updated review

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年6月18日

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  • Laura Braun,
  • Rossella Graffeo,
  • Kalaruban Kapilan,
  • Harpreet Kaur Mandhair,
  • Manuela Rabaglio,
  • Urban Novak

摘要

Background

Several factors contribute to the development of malignant lymphomas including environmental exposures, bacterial and viral infections, as well as familial and genetic factors.

Main body

Numerous somatic variants are involved in lymphomagenesis, and an increasing number of germline variants predisposing patients to lymphoid neoplasm have been identified. Although most lymphomas arise sporadically, epidemiological studies have linked a familial history of lymphomas and other hematological tumors with an increased lymphoma risk. Although rare, familial clustering of malignant lymphoma is well documented, and the constellations suggest inherited risk factors. Recent technological advancements have improved our ability to identify genetic factors associated with lymphoma that overall lead to a better understanding of genetic susceptibility for these entities. In this context, we here provide a comprehensive perspective on lymphoma risk factors to support improved lymphoma risk assessment and testing. A dedicated clinical management could influence future advances in lymphoma therapies and might also prevent severe toxicity and secondary malignancies. However, to date, only few susceptibility genes for malignant lymphomas have been identified. Highly penetrant mutations in known genes cannot account for most of the excess in a polygenic and heterogenic disease such as cancer. High-throughput sequencing identifies pathogenic variants that may constitute most low-penetrance alleles. However, their detection requires many well-characterized cases and controls. In this review, we therefore also include a short discussion on a Swiss cohort where we prospectively collect and samples for genetic data from individuals with a family history of lymphoma. We are convinced that such an approach is more informative and feasible than a population-based project with unselected cases and aim to better inform both genetic counsellors and oncologists.

Conclusion

Inherited genetic factors contribute to lymphoma risk in a subset of patients. Improved identification of susceptibility variants, particularly through family-based studies, may enhance risk assessment and inform personalized clinical management.