PMID- 27605053 OWN - NLM STAT- MEDLINE DCOM- 20170215 LR - 20181113 IS - 1432-2307 (Electronic) IS - 0945-6317 (Linking) VI - 469 IP - 6 DP - 2016 Dec TI - Leukemic non-nodal mantle cell lymphomas have a distinct phenotype and are associated with deletion of PARP1 and 13q14. PG - 697-706 AB - Leukemic non-nodal mantle cell lymphoma (lMCL) is a particular subtype of mantle cell lymphoma (MCL), characterized by leukemic non-nodal disease and slow progression. Recognition of this entity is relevant to avoid overtreatment. Despite indolent clinical behaviour, lMCL might transform to a more aggressive disease. The purpose of this study was to compare lMCL with classical MCL (cMCL) and aggressive MCL (aMCL) using immunohistochemistry, interphase fluorescence in situ hybridization (FISH), and array-based comparative genomic hybridization, in order to identify biomarkers for lMCL diagnosis and prognosis. Seven lMCL patients were included. All had bone marrow involvement without lymphadenopathy. An lMCL phenotype was distinct from that of cMCL and aMCL: SOX11-, ATM+, PARP1+/-, and low KI67 (average 2 %). Beyond the t(11;14) translocation, fewer secondary cytogenetic alterations were found in lMCL compared to cMCL and aMCL, including deletion of PARP1 and 13q14. At last follow-up, one patient with lMCL had died of disease and another had progressive disease. These patients were respectively 13q14 deletion- and PARP1-positive. One other case of lMCL harbored a 13q14 deletion associated with PARP1 deletion. This patient had indolent disease. lMCL has a particular phenotype and fewer secondary cytogenetic alterations than cMCL and aMCL. PARP1 protein expression and 13q14 deletion are associated with a progressive clinical course of lMCL and should be included in initial diagnostic studies as predictors of unfavorable outcome. PARP1 deletion is involved in lMCL pathogenesis and might confer advantage. FAU - Gallo, Mathieu AU - Gallo M AD - Departement de Biopathologie, Hopital Gui De Chauliac, CHU Montpellier, 34275, Montpellier, France. AD - Faculte de Medecine, Universite Montpellier, 2 rue ecole de Medecine, 34060, Montpellier, France. FAU - Cacheux, Valere AU - Cacheux V AD - Departement d'Hematologie biologique, Hopital Saint Eloi, CHU Montpellier, 34275, Montpellier, France. AD - Faculte de Medecine, Universite Montpellier, 2 rue ecole de Medecine, 34060, Montpellier, France. FAU - Vincent, Laure AU - Vincent L AD - Departement d'Hematologie clinique, Hopital Saint Eloi, CHU Montpellier, 34275, Montpellier, France. AD - Faculte de Medecine, Universite Montpellier, 2 rue ecole de Medecine, 34060, Montpellier, France. FAU - Bret, Caroline AU - Bret C AD - Departement d'Hematologie biologique, Hopital Saint Eloi, CHU Montpellier, 34275, Montpellier, France. AD - Faculte de Medecine, Universite Montpellier, 2 rue ecole de Medecine, 34060, Montpellier, France. FAU - Tempier, Ariane AU - Tempier A AD - Departement de Biopathologie, Hopital Gui De Chauliac, CHU Montpellier, 34275, Montpellier, France. FAU - Guittard, Caroline AU - Guittard C AD - Departement d'Hematologie biologique, Hopital Saint Eloi, CHU Montpellier, 34275, Montpellier, France. FAU - Mace, Alexandra AU - Mace A AD - Departement d'Hematologie biologique, Hopital Saint Eloi, CHU Montpellier, 34275, Montpellier, France. FAU - Leventoux, Nicolas AU - Leventoux N AD - Departement de Biopathologie, Hopital Gui De Chauliac, CHU Montpellier, 34275, Montpellier, France. FAU - Costes, Valerie AU - Costes V AD - Departement de Biopathologie, Hopital Gui De Chauliac, CHU Montpellier, 34275, Montpellier, France. AD - Faculte de Medecine, Universite Montpellier, 2 rue ecole de Medecine, 34060, Montpellier, France. FAU - Szablewski, Vanessa AU - Szablewski V AD - Departement de Biopathologie, Hopital Gui De Chauliac, CHU Montpellier, 34275, Montpellier, France. vszmed@hotmail.fr. AD - Faculte de Medecine, Universite Montpellier, 2 rue ecole de Medecine, 34060, Montpellier, France. vszmed@hotmail.fr. AD - Departement de Biopathologie Cellulaire et Tissulaire des Tumeurs, Hopital Gui De Chauliac, CHU Montpellier, 34275, Montpellier, France. vszmed@hotmail.fr. LA - eng PT - Journal Article DEP - 20160907 PL - Germany TA - Virchows Arch JT - Virchows Archiv : an international journal of pathology JID - 9423843 RN - EC 2.4.2.30 (PARP1 protein, human) RN - EC 2.4.2.30 (Poly (ADP-Ribose) Polymerase-1) SB - IM MH - Aged MH - Aged, 80 and over MH - Chromosome Deletion MH - *Chromosomes, Human, Pair 13 MH - Comparative Genomic Hybridization/methods MH - Female MH - Humans MH - Immunohistochemistry/methods MH - In Situ Hybridization, Fluorescence/methods MH - Lymphoma, Mantle-Cell/*diagnosis/*genetics/pathology MH - Male MH - Middle Aged MH - Phenotype MH - Poly (ADP-Ribose) Polymerase-1/*genetics MH - Prognosis MH - Translocation, Genetic/*genetics OTO - NOTNLM OT - Cytogenetic OT - Indolent OT - Mantle cell lymphoma OT - PARP1 EDAT- 2016/09/09 06:00 MHDA- 2017/02/16 06:00 CRDT- 2016/09/09 06:00 PHST- 2016/05/31 00:00 [received] PHST- 2016/08/30 00:00 [accepted] PHST- 2016/07/22 00:00 [revised] PHST- 2016/09/09 06:00 [pubmed] PHST- 2017/02/16 06:00 [medline] PHST- 2016/09/09 06:00 [entrez] AID - 10.1007/s00428-016-2016-8 [pii] AID - 10.1007/s00428-016-2016-8 [doi] PST - ppublish SO - Virchows Arch. 2016 Dec;469(6):697-706. doi: 10.1007/s00428-016-2016-8. Epub 2016 Sep 7.