scholarly journals Lack of the t(2;5) or other mutations resulting in expression of anaplastic lymphoma kinase catalytic domain in CD30+ primary cutaneous lymphoproliferative disorders and Hodgkin's disease

Blood ◽  
1996 ◽  
Vol 88 (5) ◽  
pp. 1765-1770 ◽  
Author(s):  
GS Wood ◽  
DL Hardman ◽  
R Boni ◽  
R Dummer ◽  
YH Kim ◽  
...  
Keyword(s):  
Hodgkin's Disease ◽  
Catalytic Domain ◽  
Cell Lymphoma ◽  
Hodgkin’S Disease ◽  
Large Cell ◽  
Lymphoproliferative Disorders ◽  
Lymphomatoid Papulosis ◽  
Anaplastic Lymphoma ◽  
Large Cell Lymphoma ◽  
Inappropriate Expression

The t(2;5) (p23;q35) chromosomal translocation has been found in a high proportion of lymph node-based CD30+ large cell lymphomas of T-cell lineage. This translocation is believed to result in the expression of a fusion protein containing the catalytic domain of anaplastic lymphoma kinase (ALK) under the control of the promoter for nucleophosmin, a nucleolar phosphoprotein. Expression of ALK activity, which does not normally occur in lymphocytes, is postulated to be involved in the pathogenesis of lymphomas bearing the t(2;5) translocation. Several primary cutaneous lymphoproliferative disorders and Hodgkin's disease are also known to contain CD30+ large lymphoid cells. To determine the role of the t(2;5) translocation in these diseases, we developed a DNA- based polymerase chain reaction (PCR)/Southern blot assay to detect this translocation at the genomic level in lymphomatoid papulosis (14 cases), primary cutaneous CD30+ large cell lymphoma of T-lineage (10 cases) and Hodgkin's disease (13 cases). Two cases of pityriasis lichenoides were also studied. The t(2;5) translocation was not present in any of these specimens. To determine if some other somatic mutation might have resulted in inappropriate expression of ALK catalytic domain, we devised an RNA-based reverse transcriptase-PCR assay to detect transcripts encoded by this ALK region. None were found in the six additional cases of lymphomatoid papulosis that were studied. In aggregate, these results strongly suggest that inappropriate expression of ALK is not involved in the pathogenesis of these CD30+ lymphoproliferative disorders, and that lymph node-based CD30+ large cell lymphoma is a disease that is biologically distinct from skin- based CD30+ lymphoproliferative disorders and Hodgkin's disease. Using methods developed for this report, we also cloned and sequenced the t(2;5) genomic junctional sequences present in the SUP-M2 and SU-DHL-1 cell lines. These intron sequences will be useful for mapping t(2;5) breakpoint clusters.

scholarly journals Lack of the t(2;5) or other mutations resulting in expression of anaplastic lymphoma kinase catalytic domain in CD30+ primary cutaneous lymphoproliferative disorders and Hodgkin's disease

Blood ◽  
1996 ◽  
Vol 88 (5) ◽  
pp. 1765-1770 ◽  
Author(s):  
GS Wood ◽  
DL Hardman ◽  
R Boni ◽  
R Dummer ◽  
YH Kim ◽  
...  
Keyword(s):  
Hodgkin's Disease ◽  
Catalytic Domain ◽  
Cell Lymphoma ◽  
Hodgkin’S Disease ◽  
Large Cell ◽  
Lymphoproliferative Disorders ◽  
Lymphomatoid Papulosis ◽  
Anaplastic Lymphoma ◽  
Large Cell Lymphoma ◽  
Inappropriate Expression

Abstract The t(2;5) (p23;q35) chromosomal translocation has been found in a high proportion of lymph node-based CD30+ large cell lymphomas of T-cell lineage. This translocation is believed to result in the expression of a fusion protein containing the catalytic domain of anaplastic lymphoma kinase (ALK) under the control of the promoter for nucleophosmin, a nucleolar phosphoprotein. Expression of ALK activity, which does not normally occur in lymphocytes, is postulated to be involved in the pathogenesis of lymphomas bearing the t(2;5) translocation. Several primary cutaneous lymphoproliferative disorders and Hodgkin's disease are also known to contain CD30+ large lymphoid cells. To determine the role of the t(2;5) translocation in these diseases, we developed a DNA- based polymerase chain reaction (PCR)/Southern blot assay to detect this translocation at the genomic level in lymphomatoid papulosis (14 cases), primary cutaneous CD30+ large cell lymphoma of T-lineage (10 cases) and Hodgkin's disease (13 cases). Two cases of pityriasis lichenoides were also studied. The t(2;5) translocation was not present in any of these specimens. To determine if some other somatic mutation might have resulted in inappropriate expression of ALK catalytic domain, we devised an RNA-based reverse transcriptase-PCR assay to detect transcripts encoded by this ALK region. None were found in the six additional cases of lymphomatoid papulosis that were studied. In aggregate, these results strongly suggest that inappropriate expression of ALK is not involved in the pathogenesis of these CD30+ lymphoproliferative disorders, and that lymph node-based CD30+ large cell lymphoma is a disease that is biologically distinct from skin- based CD30+ lymphoproliferative disorders and Hodgkin's disease. Using methods developed for this report, we also cloned and sequenced the t(2;5) genomic junctional sequences present in the SUP-M2 and SU-DHL-1 cell lines. These intron sequences will be useful for mapping t(2;5) breakpoint clusters.

scholarly journals Amplification of genomic DNA demonstrates the presence of the t(2;5) (p23;q35) in anaplastic large cell lymphoma, but not in other non- Hodgkin's lymphomas, Hodgkin's disease, or lymphomatoid papulosis

Blood ◽  
1996 ◽  
Vol 88 (5) ◽  
pp. 1771-1779 ◽  
Author(s):  
AH Sarris ◽  
R Luthra ◽  
V Papadimitracopoulou ◽  
M Waasdorp ◽  
MA Dimopoulos ◽  
...  
Keyword(s):  
Anaplastic Large Cell Lymphoma ◽  
Hodgkin's Disease ◽  
Genomic Dna ◽  
Cell Lymphoma ◽  
Hodgkin’S Disease ◽  
Large Cell ◽  
Lymphomatoid Papulosis ◽  
Large Cell Lymphoma ◽  
Hodgkin's Lymphomas ◽  
Dna Pcr

Anaplastic large cell lymphoma (ALCL) is a distinct clinicopathologic variant of intermediate grade non-Hodgkin's lymphomas (NHL) composed of large pleomorphic cells that usually express the CD30 antigen and interleukin (IL)-2 receptors, and is characterized by frequent cutaneous and extranodal involvement. With variable frequency ALCL bear the t(2;5)(p23;q35) chromosomal translocation that fuses the nucleophosmin (NPM) gene on chromosome 5q35 to a novel protein kinase gene, Anaplastic Lymphoma Kinase (ALK), on chromosome 2p23. We determined the frequency of this translocation with a novel DNA polymerase chain reaction (PCR) technique using 0.5 microgram of genomic DNA, 5′-primers derived from the NPM gene and 3′-primers derived from the ALK gene and hybridization with internal probes. The presence of amplifiable DNA in the samples was tested with the inclusion in the PCR reaction of oligonucleotide primers designed to amplify a 3016-bp fragment from the beta-globin locus. NMP-ALK fusion amplicons were detected using DNA isolated either from all three ALCL cell lines tested, or from all four primary ALCL tumors known to contain the t(2;5)(p23;q35) translocation. Nested amplicons were detected by hybridization in 100% of specimens diluted 10(4)-fold and in 20% of those diluted 10(5)-fold. We subsequently examined archival genomic DNA from 20 patients with ALCL, 39 with diffuse large cell, 2 with mantle cell, 20 with peripheral T cell, 13 with low-grade NHL, 31 with Hodgkin's disease (HD), and 6 with lymphomatoid papulosis. Fusion of the NPM and ALK genes was detected in three of 18 patients with ALCL who had amplifiable DNA (17%, 95% confidence intervals 4% to 41%), but not in any patients with other NHL, HD, or lymphomatoid papulosis. The amplicon sizes were different in all cell lines and patients reflecting unique genomic DNA breakpoints. We conclude that with genomic DNA-PCR the rearrangement of the NPM and ALK loci is restricted to patients with ALCL. Further studies are needed to determine the prognostic significance of the NPM-ALK rearrangement, to determine whether its detection can aid in the differential diagnosis between ALCL. Hodgkin's disease, and lymphomatoid papulosis, and to establish the usefulness of the genomic DNA PCR in the monitoring of minimal residual disease in those patients whose tumors bear the t(2;5).

scholarly journals Transcripts of the npm-alk fusion gene in anaplastic large cell lymphoma, Hodgkin's disease, and reactive lymphoid lesions

Blood ◽  
1995 ◽  
Vol 86 (9) ◽  
pp. 3517-3521 ◽  
Author(s):  
PG Elmberger ◽  
MD Lozano ◽  
DD Weisenburger ◽  
W Sanger ◽  
WC Chan
Keyword(s):  
Anaplastic Large Cell Lymphoma ◽  
Hodgkin's Disease ◽  
Fusion Gene ◽  
Cell Lymphoma ◽  
Cytogenetic Study ◽  
Hodgkin’S Disease ◽  
Large Cell ◽  
Rt Pcr ◽  
Anaplastic Lymphoma ◽  
Large Cell Lymphoma

Anaplastic large cell lymphoma (ALCL) and Hodgkin's disease (HD) have some pathologic and immunohistochemical similarities, and a histogenetic relationship between them has been suggested by some investigators. By cytogenetic study, the t(2;5)(p23;q35) translocation appears to be unique for ALCL. The breakpoints of the t(2;5)(p23;q35) have recently been cloned and are reported to involve a novel tyrosine kinase gene, anaplastic lymphoma kinase (alk), on chromosome 2 and the nucleophosmin gene (npm) on chromosome 5. Therefore, we studied the frequency of npm-alk translocation in ALCL using a reverse transcriptase-polymerase chain reaction (RT-PCR) assay. We also studied HD and a variety of reactive lymphoid lesions since there is contradictory information in the literature on the occurrence of the npm-alk rearrangement in HD. We detected npm-alk hybrid mRNA in 8 of 22 cases of ALCL (36%), but none of the 21 cases of HD or the 11 cases with reactive lesions contained amplifiable template. All positive ALCL had the T or indeterminate phenotype and occurred in young adults or children. There was very good correlation between a cytogenetically detectable t(2;5) and a positive signal by RT-PCR. Our results indicate a selective but relatively infrequent association between the t(2;5) and ALCL of T or indeterminate phenotype, not shared with HD or reactive hyperplasia.

Amplification of genomic DNA demonstrates the presence of the t(2;5) (p23;q35) in anaplastic large cell lymphoma, but not in other non- Hodgkin's lymphomas, Hodgkin's disease, or lymphomatoid papulosis

Blood ◽  
1996 ◽  
Vol 88 (5) ◽  
pp. 1771-1779 ◽  
Author(s):  
AH Sarris ◽  
R Luthra ◽  
V Papadimitracopoulou ◽  
M Waasdorp ◽  
MA Dimopoulos ◽  
...  
Keyword(s):  
Anaplastic Large Cell Lymphoma ◽  
Hodgkin's Disease ◽  
Genomic Dna ◽  
Cell Lymphoma ◽  
Hodgkin’S Disease ◽  
Large Cell ◽  
Lymphomatoid Papulosis ◽  
Large Cell Lymphoma ◽  
Hodgkin's Lymphomas ◽  
Dna Pcr

Abstract Anaplastic large cell lymphoma (ALCL) is a distinct clinicopathologic variant of intermediate grade non-Hodgkin's lymphomas (NHL) composed of large pleomorphic cells that usually express the CD30 antigen and interleukin (IL)-2 receptors, and is characterized by frequent cutaneous and extranodal involvement. With variable frequency ALCL bear the t(2;5)(p23;q35) chromosomal translocation that fuses the nucleophosmin (NPM) gene on chromosome 5q35 to a novel protein kinase gene, Anaplastic Lymphoma Kinase (ALK), on chromosome 2p23. We determined the frequency of this translocation with a novel DNA polymerase chain reaction (PCR) technique using 0.5 microgram of genomic DNA, 5′-primers derived from the NPM gene and 3′-primers derived from the ALK gene and hybridization with internal probes. The presence of amplifiable DNA in the samples was tested with the inclusion in the PCR reaction of oligonucleotide primers designed to amplify a 3016-bp fragment from the beta-globin locus. NMP-ALK fusion amplicons were detected using DNA isolated either from all three ALCL cell lines tested, or from all four primary ALCL tumors known to contain the t(2;5)(p23;q35) translocation. Nested amplicons were detected by hybridization in 100% of specimens diluted 10(4)-fold and in 20% of those diluted 10(5)-fold. We subsequently examined archival genomic DNA from 20 patients with ALCL, 39 with diffuse large cell, 2 with mantle cell, 20 with peripheral T cell, 13 with low-grade NHL, 31 with Hodgkin's disease (HD), and 6 with lymphomatoid papulosis. Fusion of the NPM and ALK genes was detected in three of 18 patients with ALCL who had amplifiable DNA (17%, 95% confidence intervals 4% to 41%), but not in any patients with other NHL, HD, or lymphomatoid papulosis. The amplicon sizes were different in all cell lines and patients reflecting unique genomic DNA breakpoints. We conclude that with genomic DNA-PCR the rearrangement of the NPM and ALK loci is restricted to patients with ALCL. Further studies are needed to determine the prognostic significance of the NPM-ALK rearrangement, to determine whether its detection can aid in the differential diagnosis between ALCL. Hodgkin's disease, and lymphomatoid papulosis, and to establish the usefulness of the genomic DNA PCR in the monitoring of minimal residual disease in those patients whose tumors bear the t(2;5).

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