Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2001-11-7
pubmed:abstractText
The t(2;5)(p23;q35) or other rare chromosomal abnormalities involving 2p23 upregulate the ALK gene, which is not expressed in normal lymphocytes. Thus, detection of ALK protein is presumptive evidence of these 2p23 abnormalities. The t(2;5) and ALK immunoreactivity are common in anaplastic large cell lymphoma of T/null-cell lineage. However, a small subset of cases of Hodgkin's disease (HD) have been reported to either carry the t(2;5) or express ALK. In this study, we have immunohistochemically evaluated 327 cases of HD with the ALK-11 antibody. ALK-11 is a well characterized polyclonal antibody raised against an intracellular portion of the ALK protein. We detected ALK-11 immunoreactivity in 8 (2.4%) cases of HD. We further studied these positive cases with ALK-1 monoclonal antibody, which reacts with an intracellular portion of ALK, similar to ALK-11. All 8 ALK-11 positive cases were negative for ALK-1. These results indicate that rare cases of HD may react with ALK-11 antibody, similar to previous reports by others using different polyclonal anti-ALK antibodies. However, the absence of ALK-1 expression in these HD cases suggests that ALK protein is not truly present and that polyclonal anti-ALK antibodies may rarely yield non-specific cross reactivity. These results further support the use of anti-ALK antibodies in the differential diagnosis of HD from ALCL.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1042-8194
pubmed:author
pubmed:issnType
Print
pubmed:volume
42
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
969-79
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed-meshheading:11697652-Adolescent, pubmed-meshheading:11697652-Adult, pubmed-meshheading:11697652-Aged, pubmed-meshheading:11697652-Aged, 80 and over, pubmed-meshheading:11697652-Antibodies, pubmed-meshheading:11697652-Child, pubmed-meshheading:11697652-Child, Preschool, pubmed-meshheading:11697652-Cross Reactions, pubmed-meshheading:11697652-Diagnosis, Differential, pubmed-meshheading:11697652-Disease-Free Survival, pubmed-meshheading:11697652-False Positive Reactions, pubmed-meshheading:11697652-Female, pubmed-meshheading:11697652-Hodgkin Disease, pubmed-meshheading:11697652-Humans, pubmed-meshheading:11697652-Immunohistochemistry, pubmed-meshheading:11697652-Lymphoma, Large-Cell, Anaplastic, pubmed-meshheading:11697652-Male, pubmed-meshheading:11697652-Protein-Tyrosine Kinases, pubmed-meshheading:11697652-Receptor Protein-Tyrosine Kinases, pubmed-meshheading:11697652-Tumor Cells, Cultured
pubmed:articleTitle
Anaplastic lymphoma kinase (ALK) is not expressed in Hodgkin's disease: results with ALK-11 antibody in 327 untreated patients.
pubmed:affiliation
Department of Lymphoma-Myeloma, The University of Texas M.D. Anderson Cancer Center, Houston 77030, USA.
pubmed:publicationType
Journal Article