| Literature DB >> 25634617 |
Panagiotis Baliakas1, Andreas Agathangelidis2, Anastasia Hadzidimitriou3, Lesley-Ann Sutton1, Eva Minga4, Athina Tsanousa5, Lydia Scarfò2, Zadie Davis6, Xiao-Jie Yan7, Tait Shanafelt8, Karla Plevova9, Yorick Sandberg10, Fie Juhl Vojdeman11, Myriam Boudjogra12, Tatiana Tzenou13, Maria Chatzouli14, Charles C Chu7, Silvio Veronese15, Anne Gardiner6, Larry Mansouri1, Karin E Smedby16, Lone Bredo Pedersen11, Denis Moreno17, Kirsten Van Lom18, Véronique Giudicelli17, Hana Skuhrova Francova9, Florence Nguyen-Khac19, Panagiotis Panagiotidis13, Gunnar Juliusson20, Lefteris Angelis5, Achilles Anagnostopoulos21, Marie-Paule Lefranc17, Monica Facco22, Livio Trentin22, Mark Catherwood23, Marco Montillo15, Christian H Geisler11, Anton W Langerak10, Sarka Pospisilova9, Nicholas Chiorazzi7, David Oscier6, Diane F Jelinek24, Nikos Darzentas25, Chrysoula Belessi14, Frederic Davi19, Paolo Ghia2, Richard Rosenquist1, Kostas Stamatopoulos26.
Abstract
An unresolved issue in chronic lymphocytic leukemia (CLL) is whether IGHV3-21 gene usage, in general, or the expression of stereotyped B-cell receptor immunoglobulin defining subset #2 (IGHV3-21/IGLV3-21), in particular, determines outcome for IGHV3-21-utilizing cases. We reappraised this issue in 8593 CLL patients of whom 437 (5%) used the IGHV3-21 gene with 254/437 (58%) classified as subset #2. Within subset #2, immunoglobulin heavy variable (IGHV)-mutated cases predominated, whereas non-subset #2/IGHV3-21 was enriched for IGHV-unmutated cases (P = .002). Subset #2 exhibited significantly shorter time-to-first-treatment (TTFT) compared with non-subset #2/IGHV3-21 (22 vs 60 months, P = .001). No such difference was observed between non-subset #2/IGHV3-21 vs the remaining CLL with similar IGHV mutational status. In conclusion, IGHV3-21 CLL should not be axiomatically considered a homogeneous entity with adverse prognosis, given that only subset #2 emerges as uniformly aggressive, contrasting non-subset #2/IGVH3-21 patients whose prognosis depends on IGHV mutational status as the remaining CLL.Entities:
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Year: 2014 PMID: 25634617 PMCID: PMC4311230 DOI: 10.1182/blood-2014-09-600874
Source DB: PubMed Journal: Blood ISSN: 0006-4971 Impact factor: 22.113