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Shestakova A, Grove N, Said J, Song S, Quintero-Rivera F. Trisomy 3, a sole recurrent cytogenetic abnormality in pediatric polymorphic post-transplant lymphoproliferative disorder (PTLD). Cancer Genet 2020; 248-249:39-48. [PMID: 33065430 DOI: 10.1016/j.cancergen.2020.09.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 08/06/2020] [Accepted: 09/28/2020] [Indexed: 11/18/2022]
Abstract
Trisomy 3 has been previously reported in association with T-cell lymphomas and less commonly in different types of non-Hodgkin B-cell lymphomas. Trisomy 3 has also been reported in two cases of pediatric post-transplant lymphoproliferative disorder (PTLD). We present comprehensive clinicopathologic review of two pediatric patients with cardiac and liver/intestinal allografts that developed polymorphic PTLD characterized by trisomy 3. Both patients had Epstein-Barr virus (EBV) viremia and EBV was positive in tissue by EBER in situ hybridization. Using karyotype analysis and fluorescence in situ hybridization, we identified trisomy 3 in both patients. Both patients responded to treatment and are now free of the PTLD. Trisomy 3, an uncommon cytogenetic finding in pediatric polymorphic PTLD, may be a recurrent cytogenetic aberration if confirmed in a larger study of pediatric PTLDs. Further clinical follow up might help stratify significance of trisomy 3 as a prognostic factor.
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Affiliation(s)
- Anna Shestakova
- Department of Pathology and Laboratory Medicine, University of California, Irvine, UCIMC, Bldg. 1, Rm. 3426, Mail Code: 4805, Orange, CA 92868, USA.
| | - Narina Grove
- Advanced Dermatology of Colorado, 1100 Poudre River Dr ste a, Fort Collins, CO 80524, USA
| | - Jonathan Said
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, Los Angeles, CA , USA
| | - Sophie Song
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, Los Angeles, CA , USA
| | - Fabiola Quintero-Rivera
- Department of Pathology and Laboratory Medicine, University of California, Irvine, UCIMC, Bldg. 1, Rm. 3426, Mail Code: 4805, Orange, CA 92868, USA.
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2
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Kim M, Hwang HS, Son EM, Cho H, Yoon DH, Suh C, Park CS, Go H, Huh J. Clinicopathological and prognostic significance of BCL2, BCL6, MYC, and IRF4 copy number gains and translocations in follicular lymphoma: a study by FISH analysis. Leuk Lymphoma 2020; 61:3342-3350. [PMID: 32921221 DOI: 10.1080/10428194.2020.1815017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
BCL2 translocation is the genetic hallmark of follicular lymphoma (FL). Besides BCL2 translocation, copy number (CN) gains and translocations of BCL6, MYC, and IRF4 have also been detected in FL, but there is little information regarding their prognostic significance. This retrospective study used fluorescence in situ hybridization (FISH) to analyze BCL2, BCL6, MYC, and IRF4 translocations and CN gains in 105 FL cases. Genetic translocations were detected for BCL2 (n = 64; 72.7%), BCL6 (n = 14; 15.9%), and MYC (n = 2; 2.3%); no case showed IRF4 translocation. Overall, 23 (26.1%), 30 (34.1%), 12 (13.8%), and 10 (11.0%) cases showed CN gains in BCL2, BCL6, MYC, and IRF4, respectively. BCL6 CN gain was a prognostic factor for worse overall survival, demonstrating a trend toward significance in multivariate analysis (HR =8.769, p = 0.056). BCL6 CN gain in FL might be associated with aggressive biologic behavior.
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Affiliation(s)
- Meejeong Kim
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Hee Sang Hwang
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Eun Mi Son
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Hyungwoo Cho
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Dok Hyun Yoon
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Cheolwon Suh
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Chan Sik Park
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Heounjeong Go
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jooryung Huh
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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3
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Fratoni S, Zanelli M, Zizzo M, Sanguedolce F, Aimola V, Cerrone G, Ricci L, Filosa A, Martino G, Ascani S. The broad landscape of follicular lymphoma: Part I. Pathologica 2020; 112:1-16. [PMID: 32031179 PMCID: PMC8138498 DOI: 10.32074/1591-951x-35-19] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Accepted: 12/08/2019] [Indexed: 12/12/2022] Open
Abstract
Follicular lymphoma is a neoplasm derived from follicle center B cells, typically both centrocytes and centroblasts, in variable proportions according to the lymphoma grading. The pattern of growth may be entirely follicular, follicular and diffuse, and rarely completely diffuse. It represents the second most common non-Hodgkin lymphoma, after diffuse large B-cell lymphoma and is the most common low-grade mature B-cell lymphoma in western countries. In the majority of cases, follicular lymphoma is a nodal tumor, occurring in adults and frequently associated with the translocation t(14;18)(q32;q21)/IGH-BCL2. However, in recent years the spectrum of follicular lymphoma has expanded and small subsets of follicular lymphoma, which differ from common follicular lymphoma, have been identified and included in the current 2017 WHO classification. The aim of our review is to describe the broad spectrum of follicular lymphoma, pointing out that the identification of distinct clinicopathological variants of follicular lymphoma is relevant for patient outcomes and choice of treatment.
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Affiliation(s)
- Stefano Fratoni
- Department of Anatomic Pathology, St. Eugenio Hospital of Rome, Rome, Italy
| | - Magda Zanelli
- Pathology Unit, Azienda Unità Sanitaria Locale - IRCCS di Reggio Emilia, Italy
| | - Maurizio Zizzo
- Surgical Oncology Unit, Azienda Unità Sanitaria Locale - IRCCS di Reggio Emilia, Italy.,Clinical and Experimental Medicine PhD Program, University of Modena and Reggio Emilia, Modena, Italy
| | - Francesca Sanguedolce
- Pathology Unit, Azienda Ospedaliero-Universitaria - Ospedali Riuniti di Foggia, Italy
| | | | | | | | | | - Giovanni Martino
- Hematology Unit, CREO, Azienda Ospedaliera di Perugia, University of Perugia, Italy
| | - Stefano Ascani
- Pathology Unit, Azienda Ospedaliera Santa Maria Terni, University of Perugia, Terni, Italy
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4
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Yoshida N, Tsuzuki S, Karube K, Takahara T, Suguro M, Miyoshi H, Nishikori M, Shimoyama M, Tsukasaki K, Ohshima K, Seto M. STX11 functions as a novel tumor suppressor gene in peripheral T-cell lymphomas. Cancer Sci 2015; 106:1455-62. [PMID: 26176172 PMCID: PMC4637999 DOI: 10.1111/cas.12742] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2015] [Revised: 07/07/2015] [Accepted: 07/09/2015] [Indexed: 12/28/2022] Open
Abstract
Peripheral T-cell lymphomas (PTCL) are a heterogeneous group of non-Hodgkin lymphomas with poor prognosis. Their molecular pathogenesis has not been entirely elucidated. We previously showed that 6q24 is one of the most frequently deleted regions in primary thyroid T-cell lymphoma. In this study, we extended the analysis to other subtypes of PTCL and performed functional assays to identify the causative genes of PTCL that are located on 6q24. Genomic loss of 6q24 was observed in 14 of 232 (6%) PTCL cases. The genomic loss regions identified at 6q24 always involved only two known genes, STX11 and UTRN. The expression of STX11, but not UTRN, was substantially lower in PTCL than in normal T-cells. STX11 sequence analysis revealed mutations in two cases (one clinical sample and one T-cell line). We further analyzed the function of STX11 in 14 cell lines belonging to different lineages. STX11 expression only suppressed the proliferation of T-cell lines bearing genomic alterations at the STX11 locus. Interestingly, expression of a novel STX11 mutant (p.Arg78Cys) did not exert suppressive effects on the induced cell lines, suggesting that this mutant is a loss-of-function mutation. In addition, STX11-altered PTCL not otherwise specified cases were characterized by the presence of hemophagocytic syndrome (67% vs 8%, P = 0.04). They also tended to have a poor prognosis compared with those without STX11 alteration. These results suggest that STX11 plays an important role in the pathogenesis of PTCL and they may contribute to the future development of new drugs for the treatment of PTCL.
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Affiliation(s)
- Noriaki Yoshida
- Division of Molecular Medicine, Aichi Cancer Center Research Institute, Nagoya, Japan.,Department of Cancer Genetics, Nagoya University Graduate School of Medicine at Aichi Cancer Center Research Institute, Nagoya, Japan.,Department of Pathology, Kurume University School of Medicine, Kurume, Japan
| | - Shinobu Tsuzuki
- Division of Molecular Medicine, Aichi Cancer Center Research Institute, Nagoya, Japan
| | - Kennosuke Karube
- Division of Molecular Medicine, Aichi Cancer Center Research Institute, Nagoya, Japan
| | - Taishi Takahara
- Division of Molecular Medicine, Aichi Cancer Center Research Institute, Nagoya, Japan.,Department of Pathology and Laboratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Miyuki Suguro
- Division of Molecular Medicine, Aichi Cancer Center Research Institute, Nagoya, Japan
| | - Hiroaki Miyoshi
- Department of Pathology, Kurume University School of Medicine, Kurume, Japan
| | - Momoko Nishikori
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Masanori Shimoyama
- Multi-institutional Clinical Trial Support Center, National Cancer Center, Tokyo, Japan
| | - Kunihiro Tsukasaki
- Department of Hematology, National Cancer Center Hospital East, Kashiwa, Japan
| | - Koichi Ohshima
- Department of Pathology, Kurume University School of Medicine, Kurume, Japan
| | - Masao Seto
- Division of Molecular Medicine, Aichi Cancer Center Research Institute, Nagoya, Japan.,Department of Cancer Genetics, Nagoya University Graduate School of Medicine at Aichi Cancer Center Research Institute, Nagoya, Japan.,Department of Pathology, Kurume University School of Medicine, Kurume, Japan
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5
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Kirkegaard MM, Coupland SE, Prause JU, Heegaard S. Malignant lymphoma of the conjunctiva. Surv Ophthalmol 2015; 60:444-58. [PMID: 26003619 DOI: 10.1016/j.survophthal.2015.05.001] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2015] [Revised: 05/06/2015] [Accepted: 05/14/2015] [Indexed: 10/23/2022]
Abstract
Conjunctival lymphomas constitute 25% of all ocular adnexal lymphomas. The majority are B-cell non-Hodgkin lymphomas (NHLs) (98%), whereas conjunctival T-cell NHLs are rare (2%). The most frequent subtype of conjunctival B-cell lymphoma is extranodal marginal zone lymphoma (EMZL; 81%), followed by follicular lymphoma (8%), diffuse large B-cell lymphoma (3%), and mantle cell lymphoma (3%). Extranodal marginal zone lymphoma occurs slightly more often in women and, along with follicular lymphoma, presents late in the seventh decade of life, whereas diffuse large B-cell lymphoma and especially mantle cell lymphoma have a predilection for the male gender and typically present in the eighth decade. Extranodal marginal zone lymphoma and follicular lymphoma present most frequently in the forniceal and bulbar conjunctiva. Conjunctival diffuse large B-cell lymphoma, mantle cell lymphoma and T-cell NHLs are characterized by a short duration of symptoms before the first ophthalmologic consultation. External beam radiotherapy is the treatment of choice for extranodal marginal zone lymphoma and follicular lymphoma, whereas diffuse large B-cell lymphoma, mantle cell lymphoma, and T-cell NHLs are mainly treated with chemotherapy. Conjunctival T-cell NHLs are associated with a particularly poor prognosis, with 50% of patients having progression or recurrence during a 1-year follow-up period.
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Affiliation(s)
- Marina M Kirkegaard
- Department of Neuroscience and Pharmacology, Eye Pathology Institute, University of Copenhagen, Copenhagen, Denmark
| | | | - Jan U Prause
- Department of Neuroscience and Pharmacology, Eye Pathology Institute, University of Copenhagen, Copenhagen, Denmark
| | - Steffen Heegaard
- Department of Neuroscience and Pharmacology, Eye Pathology Institute, University of Copenhagen, Copenhagen, Denmark; Department of Ophthalmology, Glostrup Hospital, University of Copenhagen, Copenhagen, Denmark.
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6
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Karube K, Martínez D, Royo C, Navarro A, Pinyol M, Cazorla M, Castillo P, Valera A, Carrió A, Costa D, Colomer D, Rosenwald A, Ott G, Esteban D, Giné E, López-Guillermo A, Campo E. Recurrent mutations of NOTCH genes in follicular lymphoma identify a distinctive subset of tumours. J Pathol 2014; 234:423-30. [PMID: 25141821 DOI: 10.1002/path.4428] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2014] [Revised: 07/30/2014] [Accepted: 08/14/2014] [Indexed: 01/27/2023]
Abstract
Follicular lymphoma (FL) is one of the most common malignant lymphomas. The t(14;18)(q32;q21) translocation is found in about 80% of cases and plays an important role in lymphomagenesis. However, the molecular mechanisms involved in the development and transformation of this lymphoma are not fully understood. Gain-of-function mutations of NOTCH1 or NOTCH2 have recently been reported in several B cell lymphoid neoplasms but the role of these mutations in FL is not known. In this study we investigated the mutational status of these genes in 112 FLs. NOTCH1 and NOTCH2 mutations were identified in five and two cases, respectively (total 7/112, 6.3%). All mutations predicted for truncated protein in the PEST domain and were identical to those identified in other B cell lymphoid neoplasms. NOTCH-mutated FL cases were characterized by lower frequency of t(14;18) (14% versus 69%, p = 0.01), higher incidence of splenic involvement (71% versus 25%, p = 0.02) and female predominance (100% versus 55%, p = 0.04). A diffuse large B cell lymphoma (DLBCL) component was more frequently identified in NOTCH-mutated FL than in wild-type cases (57% versus 18%, p = 0.03). These results indicate that NOTCH mutations are uncommon in FL but may occur in a subset of cases with distinctive, characteristic, clinicopathological features.
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Affiliation(s)
- Kennosuke Karube
- Institut d'Investigacions Biomèdiques August Pi i Sunyer, Hospital Clínic, Universitat de Barcelona, Spain
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7
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Suguro M, Yoshida N, Umino A, Kato H, Tagawa H, Nakagawa M, Fukuhara N, Karnan S, Takeuchi I, Hocking TD, Arita K, Karube K, Tsuzuki S, Nakamura S, Kinoshita T, Seto M. Clonal heterogeneity of lymphoid malignancies correlates with poor prognosis. Cancer Sci 2014; 105:897-904. [PMID: 24815991 PMCID: PMC4317909 DOI: 10.1111/cas.12442] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Revised: 05/01/2014] [Accepted: 05/06/2014] [Indexed: 11/30/2022] Open
Abstract
Clonal heterogeneity in lymphoid malignancies has been recently reported in adult T-cell lymphoma/leukemia, peripheral T-cell lymphoma, not otherwise specified, and mantle cell lymphoma. Our analysis was extended to other types of lymphoma including marginal zone lymphoma, follicular lymphoma and diffuse large B-cell lymphoma. To determine the presence of clonal heterogeneity, 332 cases were examined using array comparative genomic hybridization analysis. Results showed that incidence of clonal heterogeneity varied from 25% to 69% among different types of lymphoma. Survival analysis revealed that mantle cell lymphoma and diffuse large B-cell lymphoma with clonal heterogeneity showed significantly poorer prognosis, and that clonal heterogeneity was confirmed as an independent predictor of poor prognosis for both types of lymphoma. Interestingly, 8q24.1 (MYC) gain, 9p21.3 (CDKN2A/2B) loss and 17p13 (TP53, ATP1B2, SAT2, SHBG) loss were recurrent genomic lesions among various types of lymphoma with clonal heterogeneity, suggesting at least in part that alterations of these genes may play a role in clonal heterogeneity.
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Affiliation(s)
- Miyuki Suguro
- Division of Molecular Medicine, Aichi Cancer Center Research Institute, Nagoya, Japan
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8
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Krijgsman O, Gonzalez P, Ponz OB, Roemer MGM, Slot S, Broeks A, Braaf L, Kerkhoven RM, Bot F, van Groningen K, Beijert M, Ylstra B, de Jong D. Dissecting the gray zone between follicular lymphoma and marginal zone lymphoma using morphological and genetic features. Haematologica 2013; 98:1921-9. [PMID: 23850804 DOI: 10.3324/haematol.2013.085118] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Nodal marginal zone lymphoma is a poorly defined entity in the World Health Organization classification, based largely on criteria of exclusion and the diagnosis often remains subjective. Follicular lymphoma lacking t(14;18) has similar characteristics which results in a major potential diagnostic overlap which this study aims to dissect. Four subgroups of lymphoma samples (n=56) were analyzed with high-resolution array comparative genome hybridization: nodal marginal zone lymphoma, t(14;18)-negative follicular lymphoma, localized t(14:18)-positive follicular lymphoma and disseminated t(14;18)-positive follicular lymphoma. Gains on chromosomes 7, 8 and 12 were observed in all subgroups. The mean number of aberrations was higher in disseminated t(14;18)-positive follicular lymphoma than in localized t(14:18)-positive follicular lymphoma (P<0.01) and the majority of alterations in localized t(14:18)-positive follicular lymphoma were also found in disseminated t(14;18)-positive follicular lymphoma. Nodal marginal zone lymphoma was marked by 3q gains with amplifications of four genes. A different overall pattern of aberrations was seen in t(14;18)-negative follicular lymphoma compared to t(14;18)-positive follicular lymphoma. t(14;18)-negative follicular lymphoma is characterized by specific (focal) gains on chromosome 3, as observed in nodal marginal zone lymphoma. Our results support the notion that localized t(14:18)-positive follicular lymphoma represents an early phase of disseminated t(14;18)-positive follicular lymphoma. t(14;18)-negative follicular lymphoma bears aberrations that are more like those in nodal marginal zone lymphoma, suggesting a relation between these groups.
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Chang ST, Lu YH, Lu CL, Kuo SY, Liu H, Lin SH, Win KT, Hsieh YC, Chuang SS. Follicular lymphoma in Taiwan: a low frequency of t(14;18), with grade 3A tumours more closely related to grade 3B than to low-grade tumours. Histopathology 2013; 63:1-12. [DOI: 10.1111/his.12119] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2012] [Accepted: 02/23/2013] [Indexed: 12/31/2022]
Affiliation(s)
| | - Yi-Hsuan Lu
- Department of Radiology; Liouying Chi Mei Hospital; Tainan; Taiwan
| | - Chin-Li Lu
- Department of Medical Research; Chi-Mei Medical Centre; Tainan; Taiwan
| | - Szu-Yin Kuo
- Department of Pathology; Chi-Mei Medical Centre; Tainan; Taiwan
| | - Hongxiang Liu
- Molecular Malignancy Laboratory; Department of Histopathology; Addenbrooke's Hospital; Cambridge University Hospitals NHS Foundation Trust; Cambridge; UK
| | - Shu-Hui Lin
- Department of Pathology; Chi-Mei Medical Centre; Tainan; Taiwan
| | - Khin Than Win
- Department of Pathology; Chi-Mei Medical Centre; Tainan; Taiwan
| | - Yen-Chuan Hsieh
- Department of Pathology; Chi-Mei Medical Centre; Tainan; Taiwan
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Abstract
Follicular lymphoma (FL) is a germinal centre-derived indolent B-cell lymphoma representing the second most common Non Hodgkin lymphoma in the Western world. This chapter focuses on the pathology of FL and summarizes the current knowledge about genetic and molecular features that are relevant for the pathogenesis of this neoplasm. The translocation t(14;18) is present in approximately 90% of FL leading to the upregulation of the anti-apoptotic protein BCL2, that may constitute a promising molecular target for therapeutic approaches. FL lacking the t(14;18) also exist, and B-cells carrying the t(14;18) can be detected in a subset of healthy individuals. In addition to the t(14;18), secondary genetic alterations are present in most FL and, more recently, deeper insights into the methylation and microRNA expression patterns in the tumour cells have been gained. The tumour microenvironment appears to be particularly important for the biology and the clinical course of FL.
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Affiliation(s)
- E Leich
- Institute of Pathology, University of Würzburg, Josef-Schneider-Str 2, 97080 Würzburg, Germany.
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11
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Yamamoto K, Matsuoka H, Funakoshi Y, Yakushijin K, Okamura A, Itoh T, Minami H. A novel dicentric chromosome, dic(9;9)(p12;q34), leading to trisomy 9 in follicular lymphoma without t(14;18). Leuk Res 2011; 35:e100-3. [PMID: 21397325 DOI: 10.1016/j.leukres.2011.02.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2010] [Revised: 01/28/2011] [Accepted: 02/14/2011] [Indexed: 10/18/2022]
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12
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Yanai S, Nakamura S, Takeshita M, Fujita K, Hirahashi M, Kawasaki K, Kurahara K, Sakai Y, Matsumoto T. Translocation t(14;18)/IGH-BCL2 in gastrointestinal follicular lymphoma: correlation with clinicopathologic features in 48 patients. Cancer 2010; 117:2467-77. [PMID: 24048795 DOI: 10.1002/cncr.25811] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2010] [Revised: 10/16/2010] [Accepted: 10/28/2010] [Indexed: 12/19/2022]
Abstract
BACKGROUND Chromosomal translocation t(14;18)(q32;q21) involving the immunoglobulin heavy chain gene (IGH) and the BCL2 gene (t[14;18][q32;q21]/IGH-BCL2) is present in 60% to 90% of nodal follicular lymphomas. To the authors' knowledge, the prevalence and clinical significance of this translocation have not been examined previously in gastrointestinal follicular lymphomas. METHODS Clinicopathologic and molecular features were investigated in 48 patients who had gastrointestinal follicular lymphoma. The site of involvement was the duodenum in 54% of patients, the jejunum in 52%, the ileum in 52%, the stomach in 29%, and the colorectum in 15%. The presence of the t(14;18)/IGH-BCL2 translocation was detected by interphase fluorescence in situ hybridization. RESULTS Treatment modalities included surgical resection (n = 16), rituximab plus chemotherapy (n = 13), rituximab alone (n = 6), antibiotics (n = 5), and watchful waiting (n = 8). Complete remission (CR) of lymphoma was achieved in 31 patients (65%). The overall survival and event-free survival rates after 5 years were 93% and 68%, respectively. The t(14;18)/IGH-BCL2 was detected in 39 patients (81%). The involvement of multiple sites (69% vs 0%), manifestation of the lymphomatous polyposis type (72% vs 22%), and histologic grade 1 or 2 tumors (92% vs 56%) were more frequent in the t(14;18)-positive group than in the negative group. In addition, the CR rate was lower in the t(14;18)-positive group than in the negative group (56% vs 100%; P = .0179), and a trend was observed toward poorer event-free survival in the positive group (P = .089). CONCLUSIONS The t(14;18)/IGH-BCL2 chromosomal translocation occurred frequently in gastrointestinal follicular lymphomas. The current results indicated that this translocation may be a predictor of an adverse clinical course.
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Affiliation(s)
- Shunichi Yanai
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
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13
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Miyata T, Yonekura K, Utsunomiya A, Kanekura T, Nakamura S, Seto M. Cutaneous type adult T-cell leukemia/lymphoma is a characteristic subtype and includes erythema/papule and nodule/tumor subgroups. Int J Cancer 2010; 126:1521-8. [PMID: 19739121 DOI: 10.1002/ijc.24874] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
We first analyzed the genomic profile of cutaneous type adult T-cell leukemia/lymphoma (ATLL) in an attempt to clarify its clinical and biological characteristics. Genomic gains of 1p, 7q and 18q and loss of 13q were frequently detected. Gain of 1p36.33-32 or loss of 13q33.1-3 indicated poor prognosis. Among cases with generalized lesions, erythema/papule or nodule/tumor cases showed a distinct genomic profile, indicating that these 2 groups were biologically different and developed via different genetic pathways. Furthermore, cases with generalized nodule/tumor lesions tended to progress to aggressive ATLL.
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Affiliation(s)
- Tomoko Miyata
- Division of Molecular Medicine, Aichi Cancer Center Research Institute, Nagoya 464-8681, Japan
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14
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Honma K, Tsuzuki S, Nakagawa M, Tagawa H, Nakamura S, Morishima Y, Seto M. TNFAIP3/A20 functions as a novel tumor suppressor gene in several subtypes of non-Hodgkin lymphomas. Blood. 2009;114:2467-2475. [PMID: 19608751 DOI: 10.1182/blood-2008-12-194852] [Citation(s) in RCA: 248] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The constitutive activation of nuclear factor-kappaB (NF-kappaB) has been implicated in tumorigenesis of lymphoid malignancies. We have previously shown that chromosome 6q was frequently deleted in ocular marginal zone B-cell lymphoma and identified TNFAIP3/A20, a negative regulator of NF-kappaB pathways, as the primary target for 6q deletion. In the study reported here, we extended the analysis to other subsets of non-Hodgkin lymphomas and found that A20 is frequently deleted in mantle cell lymphoma and diffuse large B-cell lymphoma. Importantly, A20 promoter methylation or gene mutation is also frequently detected in these lymphomas, raising the possibility that inactivation of A20 may be involved in lymphomagenesis. To address this question, we conducted overexpression experiments in lymphoma cell lines with A20 deletion and down-regulated expression of A20 with an siRNA technique in Epstein-Barr virus-infected lymphoblastoid cell lines. These experiments found that overexpression of A20 induced apoptosis and silencing of A20 was associated with resistance to apoptosis and enhanced clonogenicity. The cells with down-regulated A20 exhibited enhanced NF-kappaB activities, which may account for the observed effects. These results indicate that our study provides a novel insight into molecular mechanisms leading to lymphoma and that specific targeting of NF-kappaB pathways may be advantageous for treatment.
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Leich E, Salaverria I, Bea S, Zettl A, Wright G, Moreno V, Gascoyne RD, Chan WC, Braziel RM, Rimsza LM, Weisenburger DD, Delabie J, Jaffe ES, Lister A, Fitzgibbon J, Staudt LM, Hartmann EM, Mueller-Hermelink HK, Campo E, Ott G, Rosenwald A. Follicular lymphomas with and without translocation t(14;18) differ in gene expression profiles and genetic alterations. Blood 2009; 114:826-34. [PMID: 19471018 DOI: 10.1182/blood-2009-01-198580] [Citation(s) in RCA: 129] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Follicular lymphoma (FL) is genetically characterized by the presence of the t(14;18)(q32;q21) chromosomal translocation in approximately 90% of cases. In contrast to FL carrying the t(14;18), their t(14;18)-negative counterparts are less well studied about their immunohistochemical, genetic, molecular, and clinical features. Within a previously published series of 184 FLs grades 1 to 3A with available gene expression data, we identified 17 FLs lacking the t(14;18). Comparative genomic hybridization and high-resolution single nucleotide polymorphism (SNP) array profiling showed that gains/amplifications of the BCL2 gene locus in 18q were restricted to the t(14;18)-positive FL subgroup. A comparison of gene expression profiles showed an enrichment of germinal center B cell-associated signatures in t(14;18)-positive FL, whereas activated B cell-like, NFkappaB, proliferation, and bystander cell signatures were enriched in t(14;18)-negative FL. These findings were confirmed by immunohistochemistry in an independent validation series of 84 FLs, in which 32% of t(14;18)-negative FLs showed weak or absent CD10 expression and 91% an increased Ki67 proliferation rate. Although overall survival did not differ between FL with and without t(14;18), our findings suggest distinct molecular features of t(14;18)-negative FL.
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Karube K, Ying G, Tagawa H, Niino D, Aoki R, Kimura Y, Hashikawa K, Suefuji N, Sugita Y, Nomura Y, Shimizu K, Yoshida S, Seto M, Ohshima K. BCL6 gene amplification/3q27 gain is associated with unique clinicopathological characteristics among follicular lymphoma without BCL2 gene translocation. Mod Pathol 2008; 21:973-8. [PMID: 18500267 DOI: 10.1038/modpathol.2008.75] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Although approximately 10-20% cases of follicular lymphoma lack BCL2 gene rearrangement, there are few reports having described the alternative genetic aberrations and their association about clinicopathological features. In this study, analysis by Fluorescence in situ hybridization of BCL6 gene aberrations in 100 follicular lymphoma cases without IGH/BCL2 rearrangement resulted in the identification of four subgroups. Group I: BCL6 gene rearrangement (n=41); Group II: BCL6 gene amplification/3q27 gain (n=30); Group III: the absence of both (n=23); and Group IV: the presence of both (n=6). Group II showed higher grade morphology (Grade 3a/b: 93%), higher bcl2 and MUM1 expression (73 and 57%, respectively), and more frequent combination with BCL2 gene amplification/18q21 gain (90%) than the other groups. BCL6 gene aberration, especially amplification/3q27 gain, indicates the presence of certain morphological and phenotypical findings in follicular lymphoma cases without IGH/BCL2 rearrangement.
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