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Tamer Hellou: Chromosome 1q Gain Signals High Long-Term Risk in AL Amyloidosis
Tamer Hellou/www.researchgate.net
Aug 26, 2026, 15:41

Tamer Hellou: Chromosome 1q Gain Signals High Long-Term Risk in AL Amyloidosis

Tamer Hellou, Advanced Hematology Clinical Fellowship at Mayo Clinic Rochester, shared a post on LinkedIn about a recent article he and his colleagues co-authored, published in American Journal of 0f Hematology, adding:

”Excited to share our newly published work in the American Journal of Hematology:

‘Chromosome 1q Gain Defines a Plasma Cell–Dominant Adverse-Risk Subtype in AL Amyloidosis With Inferior Long-Term Survival.’

In this study of 517 patients with newly diagnosed AL amyloidosis, +1q identified a distinct plasma cell–dominant phenotype, characterized by greater clonal burden and inferior long-term survival, while other high-risk cytogenetic lesions did not show the same adverse prognostic impact.

Importantly, despite good early hematologic and organ responses, patients with +1q remained at risk for poorer long-term outcomes, with its adverse impact becoming particularly evident beyond two years, highlighting the importance of long-term vigilance even in patients who respond well initially.
Grateful to Eli Muchtar and all my colleagues and collaborators at Mayo Clinic for their guidance and contributions to this work.”

Title: Chromosome 1q Gain Defines a Plasma Cell–Dominant Adverse-Risk Subtype in AL Amyloidosis With Inferior Long-Term Survival

Authors: Tamer Hellou, Estefania Gauto Mariotti, Ahmed Alnughmush, Linda B. Baughn, Prashant Kapoor, Saurabh Zanwar, Shinichiro Suzuki, Maximilian J. Steinhardt, Daniel G. Packard, Taxiarchis V. Kourelis, Francis K. Buadi, David Dingli, Suzanne R. Hayman, Nelson Leung, Yi Lisa Hwa, Amie Fonder, Miriam Hobbs, Rahma Warsame, Joselle Cook, Moritz Binder, Nadine Abdallah, Yi Lin, Ronald S. Go, Robert A. Kyle, S. Vincent Rajkumar, Wilson I. Gonsalves, Shaji K. Kumar, Morie A. Gertz, Angela Dispenzieri, Eli Muchtar

Tamer Hellou: Chromosome 1q Gain Signals High Long-Term Risk in AL Amyloidosis

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Ahmed Alnughmush Amie Fonder Angela Dispenzieri Chromosome 1q Daniel G. Packard David Dingli Eli Muchtar Estefania Gauto Mariotti Francis K. Buadi Joselle Cook Linda B. Baughn Maximilian J. Steinhardt Miriam Hobbs Morie A. Gertz Moritz Binder Nadine Abdallah Nelson Leung Prashant Kapoor Rahma Warsame Robert A. Kyle Ronald S. Go S. Vincent Rajkumar Saurabh Zanwar Shaji K. Kumar Shinichiro Suzuki Suzanne R. Hayman Tamer Hellou Taxiarchis V. Kourelis Wilson I. Gonsalves Yi Lin Yi Lisa Hwa
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