1
|
Nguyen-Khac F, Muller M, Chapiro E, Abermil N, Collonge-Rame MA, Daudignon A, Gaillard B, Guzun D, Ittel A, Lefebvre C, Lesesve JF, Mozziconacci MJ, Penther D, Quessada J, Settegrana C, Smagghe L, Terre C, Veronese L, Hirsch P, Troadec MB. The t(X;20)(q13;q13) translocation is a good prognostic factor in myeloid neoplasms: A report of 25 cases from the Groupe Francophone de Cytogénétique Hématologique. Am J Hematol 2024; 99:1420-1422. [PMID: 38613825 DOI: 10.1002/ajh.27328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 03/04/2024] [Accepted: 03/26/2024] [Indexed: 04/15/2024]
Affiliation(s)
- Florence Nguyen-Khac
- Centre de Recherche des Cordeliers, Sorbonne Université, Université Paris Cité, Inserm UMRS 1138, Drug Resistance in Hematological Malignancies Team, Paris, France
- Service d'Hématologie Biologique, Hôpital Pitié-Salpêtrière, Sorbonne Université, AP-HP, Paris, France
| | - Marc Muller
- Laboratoire de génétique, CHRU de Nancy, Nancy, France
| | - Elise Chapiro
- Centre de Recherche des Cordeliers, Sorbonne Université, Université Paris Cité, Inserm UMRS 1138, Drug Resistance in Hematological Malignancies Team, Paris, France
- Service d'Hématologie Biologique, Hôpital Pitié-Salpêtrière, Sorbonne Université, AP-HP, Paris, France
| | - Nassera Abermil
- Sorbonne Université, Inserm, Centre de Recherche Saint-Antoine, CRSA, APHP, Hôpital Saint-Antoine, Paris, France
- Service d'Hématologie Biologique, Hôpital Saint-Antoine (AP-HP), Paris, France
| | - Marie-Agnes Collonge-Rame
- Oncobiologie Génétique Bioinformatique, UF Cytogénétique et génétique moléculaire, CHU de Besançon, Besançon, France
| | - Agnes Daudignon
- Institut de Génétique Médicale, Hôpital Jeanne de Flandre, CHU de Lille, Lille, France
| | | | - Doina Guzun
- Service d'Hématologie Biologique, Hôpital Pitié-Salpêtrière, Sorbonne Université, AP-HP, Paris, France
| | - Antoine Ittel
- Département de Biopathologie, Cytogénétique et Biologie Moléculaire, Institut Paoli-Calmettes, Centre de Recherche en Cancérologie de Marseille, Marseille, France
| | - Christine Lefebvre
- Unité de Génétique des Hémopathies, Service d'Hématologie Biologique, CHU Grenoble Alpes, Grenoble, France
| | - Jean-Francois Lesesve
- Hématologie Biologique CHRU Nancy, Université de Lorraine INSERM U 1256 NGERE, Nancy, France
| | - Marie-Joelle Mozziconacci
- Département de Biopathologie, Cytogénétique et Biologie Moléculaire, Institut Paoli-Calmettes, Centre de Recherche en Cancérologie de Marseille, Marseille, France
| | | | - Julie Quessada
- Laboratoire de Cytogénétique Hématologique, Département d'Hématologie, CHU Timone, APHM, Aix Marseille Université, Marseille, France
| | - Catherine Settegrana
- Service d'Hématologie Biologique, Hôpital Pitié-Salpêtrière, Sorbonne Université, AP-HP, Paris, France
| | - Luce Smagghe
- Service d'Hématologie Biologique, Hôpital Pitié-Salpêtrière, Sorbonne Université, AP-HP, Paris, France
| | - Christine Terre
- Laboratoire de Cytogénétique Hématologique, Centre Hospitalier de Versailles, Le Chesnay, France
| | - Lauren Veronese
- Service de Cytogénétique Médicale, CHU Estaing, Clermont-Ferrand, France
- EA7453 CHELTER, Clonal Heterogeneity, Leukemic Environment, Therapy Resistance of Chronic Leukemias, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Pierre Hirsch
- Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine, CRSA, AP-HP, SIRIC CURAMUS, Hôpital Saint-Antoine, Service d'Hématologie Biologique, Paris, France
| | - Marie-Bérengère Troadec
- Univ Brest, Inserm, EFS, UMR 1078, GGB, Brest, France
- CHRU Brest, service de génétique, laboratoire de génétique chromosomique, Brest, France
| |
Collapse
|
2
|
Auger N, Douet-Guilbert N, Quessada J, Theisen O, Lafage-Pochitaloff M, Troadec MB. Cytogenetics in the management of myelodysplastic neoplasms (myelodysplastic syndromes, MDS): Guidelines from the groupe francophone de cytogénétique hématologique (GFCH). Curr Res Transl Med 2023; 71:103409. [PMID: 38091642 DOI: 10.1016/j.retram.2023.103409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 09/04/2023] [Accepted: 09/14/2023] [Indexed: 12/26/2023]
Abstract
Myelodysplastic neoplasms (MDS) are clonal hematopoietic neoplasms. Chromosomal abnormalities (CAs) are detected in 40-45% of de novo MDS and up to 80% of post-cytotoxic therapy MDS (MDS-pCT). Lately, several changes appeared in World Health Organization (WHO) classification and International Consensus Classification (ICC). The novel 'biallelic TP53 inactivation' (also called 'multi-hit TP53') MDS entity requires systematic investigation of TP53 locus (17p13.1). The ICC maintains CA allowing the diagnosis of MDS without dysplasia (del(5q), del(7q), -7 and complex karyotype). Deletion 5q is the only CA, still representing a low blast class of its own, if isolated or associated with one additional CA other than -7 or del(7q) and without multi-hit TP53. It represents one of the most frequent aberrations in adults' MDS, with chromosome 7 aberrations, and trisomy 8. Conversely, translocations are rarer in MDS. In children, del(5q) is very rare while -7 and del(7q) are predominant. Identification of a germline predisposition is key in childhood MDS. Aberrations of chromosomes 5, 7 and 17 are the most frequent in MDS-pCT, grouped in complex karyotypes. Despite the ever-increasing importance of molecular features, cytogenetics remains a major part of diagnosis and prognosis. In 2022, a molecular international prognostic score (IPSS-M) was proposed, combining the prognostic value of mutated genes to the previous scoring parameters (IPSS-R) including cytogenetics, still essential. A karyotype on bone marrow remains mandatory at diagnosis of MDS with complementary molecular analyses now required. Analyses with FISH or other technologies providing similar information can be necessary to complete and help in case of karyotype failure, for doubtful CA, for clonality assessment, and for detection of TP53 deletion to assess TP53 biallelic alterations.
Collapse
Affiliation(s)
- Nathalie Auger
- Gustave Roussy, Génétique des tumeurs, 144 rue Edouard Vaillant, Villejuif 94805, France
| | - Nathalie Douet-Guilbert
- Univ Brest, Inserm, EFS, UMR 1078, GGB, Brest F-29200, France; CHRU Brest, Laboratoire de Génétique Chromosomique, Service de génétique, Brest, France
| | - Julie Quessada
- Laboratoire de Cytogénétique Hématologique, CHU Timone Aix Marseille University, Marseille, France
| | - Olivier Theisen
- Hematology Biology, Nantes University Hospital, Nantes, France
| | | | - Marie-Bérengère Troadec
- Univ Brest, Inserm, EFS, UMR 1078, GGB, Brest F-29200, France; CHRU Brest, Laboratoire de Génétique Chromosomique, Service de génétique, Brest, France.
| |
Collapse
|
3
|
Telomeric RNAs are essential to maintain telomeres. Nat Commun 2016; 7:12534. [PMID: 27531349 PMCID: PMC4992061 DOI: 10.1038/ncomms12534] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2016] [Accepted: 07/11/2016] [Indexed: 01/03/2023] Open
Abstract
Telomeres are transcribed generating long non-coding RNAs known as TERRA. Deciphering the role of TERRA has been one of the unsolved issues of telomere biology in the past decade. This has been, in part, due to lack of knowledge on the TERRA loci, thus preventing functional genetic studies. Here, we describe that long non-coding RNAs with TERRA features are transcribed from the human 20q and Xp subtelomeres. Deletion of the 20q locus by using the CRISPR-Cas9 technology causes a dramatic decrease in TERRA levels, while deletion of the Xp locus does not result in decreased TERRA levels. Strikingly, 20q-TERRA ablation leads to dramatic loss of telomere sequences and the induction of a massive DNA damage response. These findings identify chromosome 20q as a main TERRA locus in human cells and represent the first demonstration in any organism of the essential role of TERRA in the maintenance of telomeres. The telomeric long-non coding RNA, TERRA, has been proposed in the past to modulate different telomeric functions based on in vitro studies. Here the authors show, using a genetic deletion approach, that TERRA is transcribed from the 20q subtelomere and that it is essential for telomere maintenance.
Collapse
|
4
|
Yhim HY, Kim HS, Sohn JY, Song MJ, Lee NR, Song EK, Choi SI, Yim CY, Kwak JY. JAK2 V617F-positive essential thrombocythemia in a patient with Klinefelter syndrome: a case report. ACTA ACUST UNITED AC 2010; 198:162-5. [DOI: 10.1016/j.cancergencyto.2010.01.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2009] [Revised: 01/03/2010] [Accepted: 01/03/2010] [Indexed: 01/31/2023]
|
5
|
Roberti MC, La Starza R, Surace C, Sirleto P, Pinto RM, Pierini V, Crescenzi B, Mecucci C, Angioni A. RABGAP1L gene rearrangement resulting from a der(Y)t(Y;1)(q12;q25) in acute myeloid leukemia arising in a child with Klinefelter syndrome. Virchows Arch 2009; 454:311-6. [PMID: 19184099 DOI: 10.1007/s00428-009-0732-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2008] [Revised: 01/02/2009] [Accepted: 01/08/2009] [Indexed: 11/28/2022]
Abstract
In this study, we report the molecular cytogenetic characterization of an acute myeloid leukemia with a der(Y)t(Y;1)(q12;q25) in bone marrow cells in a child with Klinefelter syndrome. Conventional cytogenetics demonstrated the unbalanced translocation, i.e., a trisomic 1q25-qter juxtaposed to Yq12 replaced the terminal segment of chromosome Y was acquired and present only on bone marrow cells. Fluorescence in situ hybridization showed that the breakpoint at 1q25 disrupted RABGAP1L, a strongly expressed gene in CFU-GEMM, erythroid cells, and megakaryocytes, while the Yq12 breakpoint fell within the heterochromatic region. As der(Y)t(Y;1)(q12;q25) was an isolated cytogenetic change, RABGAP1L rearrangement as well as gene(s) dosage effects correlated to 1q25-qter trisomy, and Yq12-qter loss may make a major contribution to leukemogenesis and/or disease progression.
Collapse
Affiliation(s)
- Maria Cristina Roberti
- Cytogenetics and Molecular Genetics, Bambino Gesù Children's Hospital, Piazza S. Onofrio 4, 00165, Rome, Italy
| | | | | | | | | | | | | | | | | |
Collapse
|
6
|
Manola KN, Stavropoulou C, Georgakakos VN, Zoi K, Fisfis M, Evmorfiadis I, Zoi C, Pantelias GE, Stefanoudaki K, Sambani C. Switch in X-inactivation in a JAK2 V617F-negative case of polycythemia vera with two acquired X-autosome translocations. Leuk Res 2007; 31:1009-14. [PMID: 17204324 DOI: 10.1016/j.leukres.2006.11.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2006] [Revised: 10/27/2006] [Accepted: 11/12/2006] [Indexed: 11/23/2022]
Abstract
We report a JAK2 V617F-negative case of polycythemia vera with two acquired balanced X-autosome translocations and no history of previous exposure to chemo/radiotherapy. The patient's first clone carried a novel translocation t(X;15)(q24;q13) as a sole abnormality. The second clone exhibited an additional translocation, t(X;20)(q13;q13.3), which is a rare recurrent abnormality in myeloid malignancies. This is the first report of a hematological disorder with both X chromosomes being translocated. Late replication studies revealed a switch in X-inactivation from the X chromosome involved in t(X;15) (first clone) to the X chromosome involved in the t(X;20)(q13;q13.3) (second clone). The inactivation of the translocated X chromosomes could provide potential for the inactivation of the adjacent autosomal regions, resulting in epigenetic gene silencing.
Collapse
Affiliation(s)
- Kalliopi N Manola
- Laboratory of Cytogenetics, National Center for Scientific Research (NCSR) "Demokritos", 15310 Aghia Paraskevi, Athens, Greece
| | | | | | | | | | | | | | | | | | | |
Collapse
|
7
|
Worch S, Fiedler E, Hansmann I, Schlote D. Genomic organization and expression pattern of scapinin (PHACTR3) in mouse and human. Cytogenet Genome Res 2006; 115:23-9. [PMID: 16974080 DOI: 10.1159/000094797] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2005] [Accepted: 02/28/2006] [Indexed: 11/19/2022] Open
Abstract
Scapinin has been found to bind to cytoplasmic actin and is also a putative regulatory subunit of protein phosphatase-1 (PP1). It is found attached to the nuclear matrix-intermediate filament (NM-IF) and is down-regulated by differentiation of tumor cells. We have analyzed the genomic structure and tissue-specific expression pattern of both the human scapinin gene (PHACTR3) and the orthologous mouse gene. Both genes showed a highly conserved complex genomic organization with four different leader exons. Alternative splicing of exon 5 was found to be limited to human and variable polyadenylation in mouse transcripts only. In both species expression seems to occur predominantly in the brain. By Northern blot analysis two major transcripts in human and three transcripts in mouse were detected. Expression analysis in the mouse revealed a tissue-specific complex transcription pattern in the brain and a specific pattern was observed during prenatal development. Based on the transcriptional data we therefore assume scapinin to have a distinct biological function in the mammalian brain.
Collapse
Affiliation(s)
- S Worch
- Institut fur Humangenetik und Medizinische Biologie, Martin-Luther-Universitat Halle-Wittenberg, Halle/Saale, Germany
| | | | | | | |
Collapse
|
8
|
O'Reilly J, Crawford J, Uzaraga J, Cannell P. Translocation (X;20) involving the inactive X chromosome in a patient with myeloproliferative disorder. ACTA ACUST UNITED AC 2005; 158:81-3. [PMID: 15771910 DOI: 10.1016/j.cancergencyto.2004.08.029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2004] [Revised: 08/18/2004] [Accepted: 08/19/2004] [Indexed: 12/16/2022]
Abstract
We report a patient with an unclassifiable myeloproliferative disorder and the rare t(X;20)(q13;q13.3) as the sole cytogenetic abnormality. The breakpoint on Xq is consistent with other reports of translocations involving the X chromosome with breakpoints that cluster to Xq13 and association with myeloid disorders. Late replication studies demonstrated the inactive X chromosome was involved in this translocation. The critical event in patients with myeloproliferative disease and deletion of 20q appears to be the loss of tumor suppressor genes. This may also be the mechanism in this patient with a potential cryptic deletion associated with the translocation. Alternatively, spreading of X inactivation into the derivative chromosome 20 provides a second mechanism for the loss of function of tumor suppressor genes on 20q. The finding in this patient of t(X;20) together with three others reported in the literature indicates that this may represent a primary non-random abnormality associated with myeloid malignancy, which may take on clinical significance with the accumulation of more cases.
Collapse
Affiliation(s)
- John O'Reilly
- Department of Haematology, Royal Perth Hospital, GPO Box X2213, Perth, Western Australia 6847.
| | | | | | | |
Collapse
|
9
|
Reddy KS, Richkind K, Ross M, Seirra R. Translocation (X;20)(q13;q13.3): a nonrandom abnormality in four patients with myeloid disorders. ACTA ACUST UNITED AC 2005; 157:70-3. [PMID: 15676151 DOI: 10.1016/j.cancergencyto.2004.05.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2004] [Revised: 05/19/2004] [Accepted: 05/24/2004] [Indexed: 11/15/2022]
Abstract
A recurring translocation (X;20)(q13;q13) was found in four women ranging in age from 57 to 77 years. They had myelodysplasia, myelodysplasia with thrombocytopenia and pancytopenia, transforming to myelofibrosis, and myelodysplasia with sideroblastic anemia, respectively. The t(X;20) was the sole abnormality in three cases; one case also had a der(1;7)(q10;p10). Added to three previously reported cases, our four cases bring the total to seven; thus, t(X;20)(q13;q13) is a nonrandom translocation associated with myeloid disorders. Previous FISH studies showed that the breakpoint on the X is proximal to XIST. In one of our cases, the breakpoint on the X was shown to be proximal to Xq12, by FISH using a probe for the androgen receptor gene locus.
Collapse
|
10
|
Busson M, Romana S, Nguyen Khac F, Bernard O, Berger R. Cryptic translocations involving chromosome 20 in polycythemia vera. ACTA ACUST UNITED AC 2004; 47:365-71. [PMID: 15581834 DOI: 10.1016/j.anngen.2004.08.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2004] [Accepted: 08/26/2004] [Indexed: 11/24/2022]
Abstract
A systematic cytogenetic study was performed in 49 patients with polycythemia vera (PV) in order to investigate the occurrence of subtelomeric rearrangements of chromosome 20, the most frequently rearranged chromosome in this myeloproliferative disorder. Partial deletion of the long arm of chromosome 20 was observed in two patients and two cryptic translocations, t(1;20)(p36;q13) and t(18;20)(p11;q13) in two others, all previously treated. The localization of the breakpoints of the translocated 20 chromosomes was different in the two translocations, as shown by fluorescence in situ hybridization (FISH) to metaphase chromosomes using BAC clones. Although infrequent (2/49), cryptic translocations of chromosome 20 deserve to be detected as preliminary to identification of molecular defects in PV.
Collapse
Affiliation(s)
- Maryvonne Busson
- Inserm EMI 0210, Tour Pasteur, Hôpital Necker-Enfants Malades, 149, rue de Sèvres, 75743 Paris cedex 15, France
| | | | | | | | | |
Collapse
|