Telomere Architecture Correlates with Aggressiveness in Multiple Myeloma

Area of Science:

• Hematology
• Oncology
• Genetics

Background:

• Multiple myeloma (MM) prognosis is often determined by cytogenetics, but analysis is not always available or definitive.
• Existing prognostic markers for MM may not fully capture disease aggressiveness or predict treatment response.
• Genomic instability, a hallmark of MM, is linked to 3D nuclear telomere organization.

Purpose of the Study:

• To investigate 3D telomere profiles as prognostic and predictive markers in monoclonal gammopathy of undetermined significance (MGUS), smoldering multiple myeloma (SMM), and MM.
• To correlate 3D telomeric profiles with disease aggressiveness, patient response to treatment, and disease progression.
• To identify novel markers for risk stratification and personalized treatment decisions in MM.

Main Methods:

• Longitudinal prospective study of 214 initially treatment-naïve patients with MGUS, SMM, or MM.
• Blind comparison of 3D telomeric profiles from bone marrow samples.
• Minimum follow-up of 5 years to assess disease progression and outcomes.

Main Results:

• Distinctive 3D telomeric profiles correlate with disease aggressiveness and treatment response in MM patients.
• Specific 3D telomeric profiles are associated with disease progression in SMM patients.
• Lower average telomere intensity (<13,500 arbitrary units) and increased telomere aggregates predict shorter survival in SMM and MM.

Conclusions:

• 3D telomere organization serves as a valuable prognostic factor for identifying high-risk SMM and MM patients.
• Telomere length and aggregation patterns offer insights into genomic instability and disease heterogeneity.
• These findings support the use of 3D telomeric profiles for improved patient risk stratification and personalized clinical management.