TOX expression in cutaneous T-cell lymphomas: an adjunctive diagnostic marker that is not tumour specific and not restricted to the CD4+ CD8− phenotype
Summary Background TOX (thymocyte selection‐associated high‐mobility group box) was shown to be aberrantly expressed in mycosis fungoides (MF) and Sézary syndrome (SS) and is suggested to have additional diagnostic value. However, data on expression in other types of cutaneous T‐cell lymphoma (CTCL)...
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| Veröffentlicht in: | British journal of dermatology (1951) 2016-08, Vol.175 (2), p.382-386 |
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| creator | Schrader, A.M.R. Jansen, P.M. Willemze, R. |
| description | Summary
Background
TOX (thymocyte selection‐associated high‐mobility group box) was shown to be aberrantly expressed in mycosis fungoides (MF) and Sézary syndrome (SS) and is suggested to have additional diagnostic value. However, data on expression in other types of cutaneous T‐cell lymphoma (CTCL) are scarce and it is unknown whether TOX is expressed only by MF with a CD4+ CD8− phenotype.
Objectives
To investigate TOX expression in various types of CTCL with different T‐cell phenotypes.
Methods
Immunohistochemical expression of TOX was evaluated on 153 skin biopsies of 132 patients with CTCL and 60 patients with benign inflammatory dermatoses (BIDs).
Results
TOX was expressed by > 50% of the neoplastic T cells in 49 of 59 patients (83%) with MF and in 19 of 22 patients (86%) with SS. The TOX+ cases of MF included 34 of 35 cases (97%) with a CD4+ CD8− phenotype, but also five of eight cases (63%) with a CD4− CD8+ phenotype and 10 of 16 cases (63%) with a CD4− CD8− phenotype. TOX expression in other types of CTCL was common but showed variable intensity. Although only one of 60 patients (2%) with a BID expressed TOX in > 50% of the skin‐infiltrating T cells, some caution is warranted, as the majority of BIDs had TOX+ T cells varying between 11% and 50%.
Conclusions
TOX expression is not tumour specific, is not restricted to CTCL with a CD4+ CD8− phenotype, and, on its own, is insufficient for diagnosis of CTCL. However, it may have an adjunctive diagnostic role in conjunction with other clinical and histological data.
What's already known about this topic?
TOX is associated with development of CD4+ CD8− T cells in the thymus, but is suppressed in mature CD4+ T cells.
TOX is aberrantly expressed in mycosis fungoides and Sézary syndrome.
What does this study add?
TOX is expressed by various types of cutaneous T‐cell lymphoma (CTCL), but also – although less strongly and less frequently – by reactive T cells in benign inflammatory dermatoses.
Expression of TOX is not restricted to CD4+ CD8− (neoplastic) T cells.
TOX expression may contribute to the diagnosis of CTCL.
Linked Comment: Kempf. Br J Dermatol 2016; 175:248–249 |
| doi_str_mv | 10.1111/bjd.14508 |
| format | Article |
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Background
TOX (thymocyte selection‐associated high‐mobility group box) was shown to be aberrantly expressed in mycosis fungoides (MF) and Sézary syndrome (SS) and is suggested to have additional diagnostic value. However, data on expression in other types of cutaneous T‐cell lymphoma (CTCL) are scarce and it is unknown whether TOX is expressed only by MF with a CD4+ CD8− phenotype.
Objectives
To investigate TOX expression in various types of CTCL with different T‐cell phenotypes.
Methods
Immunohistochemical expression of TOX was evaluated on 153 skin biopsies of 132 patients with CTCL and 60 patients with benign inflammatory dermatoses (BIDs).
Results
TOX was expressed by > 50% of the neoplastic T cells in 49 of 59 patients (83%) with MF and in 19 of 22 patients (86%) with SS. The TOX+ cases of MF included 34 of 35 cases (97%) with a CD4+ CD8− phenotype, but also five of eight cases (63%) with a CD4− CD8+ phenotype and 10 of 16 cases (63%) with a CD4− CD8− phenotype. TOX expression in other types of CTCL was common but showed variable intensity. Although only one of 60 patients (2%) with a BID expressed TOX in > 50% of the skin‐infiltrating T cells, some caution is warranted, as the majority of BIDs had TOX+ T cells varying between 11% and 50%.
Conclusions
TOX expression is not tumour specific, is not restricted to CTCL with a CD4+ CD8− phenotype, and, on its own, is insufficient for diagnosis of CTCL. However, it may have an adjunctive diagnostic role in conjunction with other clinical and histological data.
What's already known about this topic?
TOX is associated with development of CD4+ CD8− T cells in the thymus, but is suppressed in mature CD4+ T cells.
TOX is aberrantly expressed in mycosis fungoides and Sézary syndrome.
What does this study add?
TOX is expressed by various types of cutaneous T‐cell lymphoma (CTCL), but also – although less strongly and less frequently – by reactive T cells in benign inflammatory dermatoses.
Expression of TOX is not restricted to CD4+ CD8− (neoplastic) T cells.
TOX expression may contribute to the diagnosis of CTCL.
Linked Comment: Kempf. Br J Dermatol 2016; 175:248–249</description><identifier>ISSN: 0007-0963</identifier><identifier>EISSN: 1365-2133</identifier><identifier>DOI: 10.1111/bjd.14508</identifier><identifier>PMID: 26931394</identifier><language>eng</language><publisher>England: Blackwell Publishing Ltd</publisher><subject>Biomarkers, Tumor - metabolism ; CD4-Positive T-Lymphocytes - metabolism ; CD8-Positive T-Lymphocytes - metabolism ; Diagnosis, Differential ; High Mobility Group Proteins - metabolism ; Humans ; Lymphoma, T-Cell, Cutaneous - diagnosis ; Mycosis Fungoides - diagnosis ; Phenotype ; Sezary Syndrome - diagnosis</subject><ispartof>British journal of dermatology (1951), 2016-08, Vol.175 (2), p.382-386</ispartof><rights>2016 British Association of Dermatologists</rights><rights>2016 British Association of Dermatologists.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c5388-82414419e174cc8da93a1256d7abc613f2d6d064d13adfa2f91932699c9424553</citedby><cites>FETCH-LOGICAL-c5388-82414419e174cc8da93a1256d7abc613f2d6d064d13adfa2f91932699c9424553</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111%2Fbjd.14508$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2Fbjd.14508$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,27901,27902,45550,45551</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/26931394$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Schrader, A.M.R.</creatorcontrib><creatorcontrib>Jansen, P.M.</creatorcontrib><creatorcontrib>Willemze, R.</creatorcontrib><title>TOX expression in cutaneous T-cell lymphomas: an adjunctive diagnostic marker that is not tumour specific and not restricted to the CD4+ CD8− phenotype</title><title>British journal of dermatology (1951)</title><addtitle>Br J Dermatol</addtitle><description>Summary
Background
TOX (thymocyte selection‐associated high‐mobility group box) was shown to be aberrantly expressed in mycosis fungoides (MF) and Sézary syndrome (SS) and is suggested to have additional diagnostic value. However, data on expression in other types of cutaneous T‐cell lymphoma (CTCL) are scarce and it is unknown whether TOX is expressed only by MF with a CD4+ CD8− phenotype.
Objectives
To investigate TOX expression in various types of CTCL with different T‐cell phenotypes.
Methods
Immunohistochemical expression of TOX was evaluated on 153 skin biopsies of 132 patients with CTCL and 60 patients with benign inflammatory dermatoses (BIDs).
Results
TOX was expressed by > 50% of the neoplastic T cells in 49 of 59 patients (83%) with MF and in 19 of 22 patients (86%) with SS. The TOX+ cases of MF included 34 of 35 cases (97%) with a CD4+ CD8− phenotype, but also five of eight cases (63%) with a CD4− CD8+ phenotype and 10 of 16 cases (63%) with a CD4− CD8− phenotype. TOX expression in other types of CTCL was common but showed variable intensity. Although only one of 60 patients (2%) with a BID expressed TOX in > 50% of the skin‐infiltrating T cells, some caution is warranted, as the majority of BIDs had TOX+ T cells varying between 11% and 50%.
Conclusions
TOX expression is not tumour specific, is not restricted to CTCL with a CD4+ CD8− phenotype, and, on its own, is insufficient for diagnosis of CTCL. However, it may have an adjunctive diagnostic role in conjunction with other clinical and histological data.
What's already known about this topic?
TOX is associated with development of CD4+ CD8− T cells in the thymus, but is suppressed in mature CD4+ T cells.
TOX is aberrantly expressed in mycosis fungoides and Sézary syndrome.
What does this study add?
TOX is expressed by various types of cutaneous T‐cell lymphoma (CTCL), but also – although less strongly and less frequently – by reactive T cells in benign inflammatory dermatoses.
Expression of TOX is not restricted to CD4+ CD8− (neoplastic) T cells.
TOX expression may contribute to the diagnosis of CTCL.
Linked Comment: Kempf. Br J Dermatol 2016; 175:248–249</description><subject>Biomarkers, Tumor - metabolism</subject><subject>CD4-Positive T-Lymphocytes - metabolism</subject><subject>CD8-Positive T-Lymphocytes - metabolism</subject><subject>Diagnosis, Differential</subject><subject>High Mobility Group Proteins - metabolism</subject><subject>Humans</subject><subject>Lymphoma, T-Cell, Cutaneous - diagnosis</subject><subject>Mycosis Fungoides - diagnosis</subject><subject>Phenotype</subject><subject>Sezary Syndrome - diagnosis</subject><issn>0007-0963</issn><issn>1365-2133</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp1kU9u1DAYxS0EokPpggsgL0Eorf8lsdmVGShFhS46UHaWx3YYD0kcbAc6N2DNklXPwlE4CW7Tdoc3lqzfe_6-9wB4gtE-zudgtTH7mJWI3wMzTKuyIJjS-2CGEKoLJCq6Ax7FuEEIU1Sih2CHVIJiKtgM_F6efob2Ygg2Rud76Hqox6R668cIl4W2bQvbbTesfafiS6h6qMxm7HVy3y00Tn3pfUxOw06FrzbAtFYJugh7n2AaOz8GGAerXZMR1Zvr9_xVCk4na2DyWWHhfMFe_LmcL_jfn7_gsLaZ2g72MXjQqDbavZt7F3x883o5f1ucnB4dzw9PCl1SzgtOGGYMC4trpjU3SlCFSVmZWq10hWlDTGVQxQymyjSKNAILmgMQWjDCypLugmeT7xD8tzEPJzsXrxafUpCYY8JrITjJ6PMJ1cHHGGwjh-Dy6luJkbyqQuYq5HUVmX16YzuuOmvuyNvsM3AwAT9ca7f_d5Kv3i1uLYtJ4WKyF3eKHL2salqX8vzDkaTnCJ99es8lo_8AtRekJA</recordid><startdate>201608</startdate><enddate>201608</enddate><creator>Schrader, A.M.R.</creator><creator>Jansen, P.M.</creator><creator>Willemze, R.</creator><general>Blackwell Publishing Ltd</general><scope>BSCLL</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>201608</creationdate><title>TOX expression in cutaneous T-cell lymphomas: an adjunctive diagnostic marker that is not tumour specific and not restricted to the CD4+ CD8− phenotype</title><author>Schrader, A.M.R. ; Jansen, P.M. ; Willemze, R.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c5388-82414419e174cc8da93a1256d7abc613f2d6d064d13adfa2f91932699c9424553</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Biomarkers, Tumor - metabolism</topic><topic>CD4-Positive T-Lymphocytes - metabolism</topic><topic>CD8-Positive T-Lymphocytes - metabolism</topic><topic>Diagnosis, Differential</topic><topic>High Mobility Group Proteins - metabolism</topic><topic>Humans</topic><topic>Lymphoma, T-Cell, Cutaneous - diagnosis</topic><topic>Mycosis Fungoides - diagnosis</topic><topic>Phenotype</topic><topic>Sezary Syndrome - diagnosis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Schrader, A.M.R.</creatorcontrib><creatorcontrib>Jansen, P.M.</creatorcontrib><creatorcontrib>Willemze, R.</creatorcontrib><collection>Istex</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>British journal of dermatology (1951)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Schrader, A.M.R.</au><au>Jansen, P.M.</au><au>Willemze, R.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>TOX expression in cutaneous T-cell lymphomas: an adjunctive diagnostic marker that is not tumour specific and not restricted to the CD4+ CD8− phenotype</atitle><jtitle>British journal of dermatology (1951)</jtitle><addtitle>Br J Dermatol</addtitle><date>2016-08</date><risdate>2016</risdate><volume>175</volume><issue>2</issue><spage>382</spage><epage>386</epage><pages>382-386</pages><issn>0007-0963</issn><eissn>1365-2133</eissn><abstract>Summary
Background
TOX (thymocyte selection‐associated high‐mobility group box) was shown to be aberrantly expressed in mycosis fungoides (MF) and Sézary syndrome (SS) and is suggested to have additional diagnostic value. However, data on expression in other types of cutaneous T‐cell lymphoma (CTCL) are scarce and it is unknown whether TOX is expressed only by MF with a CD4+ CD8− phenotype.
Objectives
To investigate TOX expression in various types of CTCL with different T‐cell phenotypes.
Methods
Immunohistochemical expression of TOX was evaluated on 153 skin biopsies of 132 patients with CTCL and 60 patients with benign inflammatory dermatoses (BIDs).
Results
TOX was expressed by > 50% of the neoplastic T cells in 49 of 59 patients (83%) with MF and in 19 of 22 patients (86%) with SS. The TOX+ cases of MF included 34 of 35 cases (97%) with a CD4+ CD8− phenotype, but also five of eight cases (63%) with a CD4− CD8+ phenotype and 10 of 16 cases (63%) with a CD4− CD8− phenotype. TOX expression in other types of CTCL was common but showed variable intensity. Although only one of 60 patients (2%) with a BID expressed TOX in > 50% of the skin‐infiltrating T cells, some caution is warranted, as the majority of BIDs had TOX+ T cells varying between 11% and 50%.
Conclusions
TOX expression is not tumour specific, is not restricted to CTCL with a CD4+ CD8− phenotype, and, on its own, is insufficient for diagnosis of CTCL. However, it may have an adjunctive diagnostic role in conjunction with other clinical and histological data.
What's already known about this topic?
TOX is associated with development of CD4+ CD8− T cells in the thymus, but is suppressed in mature CD4+ T cells.
TOX is aberrantly expressed in mycosis fungoides and Sézary syndrome.
What does this study add?
TOX is expressed by various types of cutaneous T‐cell lymphoma (CTCL), but also – although less strongly and less frequently – by reactive T cells in benign inflammatory dermatoses.
Expression of TOX is not restricted to CD4+ CD8− (neoplastic) T cells.
TOX expression may contribute to the diagnosis of CTCL.
Linked Comment: Kempf. Br J Dermatol 2016; 175:248–249</abstract><cop>England</cop><pub>Blackwell Publishing Ltd</pub><pmid>26931394</pmid><doi>10.1111/bjd.14508</doi><tpages>5</tpages><oa>free_for_read</oa></addata></record> |
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| identifier | ISSN: 0007-0963 |
| ispartof | British journal of dermatology (1951), 2016-08, Vol.175 (2), p.382-386 |
| issn | 0007-0963 1365-2133 |
| language | eng |
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| source | Oxford University Press Journals All Titles (1996-Current); MEDLINE; Wiley Online Library Journals Frontfile Complete |
| subjects | Biomarkers, Tumor - metabolism CD4-Positive T-Lymphocytes - metabolism CD8-Positive T-Lymphocytes - metabolism Diagnosis, Differential High Mobility Group Proteins - metabolism Humans Lymphoma, T-Cell, Cutaneous - diagnosis Mycosis Fungoides - diagnosis Phenotype Sezary Syndrome - diagnosis |
| title | TOX expression in cutaneous T-cell lymphomas: an adjunctive diagnostic marker that is not tumour specific and not restricted to the CD4+ CD8− phenotype |
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