PMID- 17289214 OWN - NLM STAT- MEDLINE DCOM- 20070329 LR - 20151119 IS - 1097-6787 (Electronic) IS - 0190-9622 (Linking) VI - 56 IP - 4 DP - 2007 Apr TI - New prognostic relevant factors in primary cutaneous diffuse large B-cell lymphomas. PG - 588-97 AB - BACKGROUND: There is a growing body of literature that has enhanced our understanding of the biology of primary cutaneous diffuse large B-cell lymphoma (PCDLBCL) including in the context of gene profiling studies. Recent studies have demonstrated an activated proliferation profile associated with leg type lymphoma including overexpression of proto-oncogenes PIM1, PIM2, and cMYC, and the transcription factors MUM1 and OCT2. Although gene profiling is very useful in understanding the molecular basis of diffuse large B-cell lymphoma (LBCL), it is not practical from a routine diagnostic perspective. In this regard, the purpose of the study was to further define an armamentarium of easily applied immunohistochemical stains to accurately prognosticate PCDLBCL. METHODS: In all, 35 patients with PCDLBCL, 14 of follicle center and 21 of leg type, were analyzed using antibodies against CD5, CD138, BCL2, BCL6, OCT2, MUM1, FOXP1, and cMYC. Findings were correlated with clinical data. RESULTS: All cases stained negative for CD5 and CD138. Both subtypes differed in distinct staining patterns for BCL6, BCL2, OCT2, MUM1, and FOXP1. Staining for BCL2, OCT2, and/or MUM1 was associated with poor, and BCL6 with a favorable prognosis. Expression of cMYC was irrespective of prognosis or subtype, whereas ulceration or primary manifestation on the leg or multiple lesions was indicative for worse prognosis. LIMITATIONS: Case number was a limitation. CONCLUSION: Discriminating PCDLBCL supports the validity of the World Health Organization/European Organization for Research and Treatment of Cancer classification. To identify risk factors in patients with PCDLBCL we recommend thorough evaluation of clinical presentation and exploratory staining pattern for BCL2, BCL6, MUM1 and OCT2. FAU - Hallermann, Christian AU - Hallermann C AD - Department of Dermatology, Institute for Tumors of the Skin, Munster, Germany. christian.hallermann@fachklinik-hornheide.de FAU - Niermann, Christoph AU - Niermann C FAU - Fischer, Rudolf-Josef AU - Fischer RJ FAU - Schulze, Hans-Joachim AU - Schulze HJ LA - eng PT - Journal Article DEP - 20070207 PL - United States TA - J Am Acad Dermatol JT - Journal of the American Academy of Dermatology JID - 7907132 RN - 0 (Biomarkers, Tumor) RN - 0 (Organic Cation Transporter 1) RN - 0 (Syndecan-1) SB - IM MH - Adult MH - Age Factors MH - Aged MH - Aged, 80 and over MH - Biomarkers, Tumor/*analysis MH - Biopsy, Needle MH - Cohort Studies MH - Combined Modality Therapy MH - Female MH - Genes, bcl-2/*genetics MH - Humans MH - Immunohistochemistry MH - Lymphoma, Large B-Cell, Diffuse/mortality/*pathology/therapy MH - Male MH - Middle Aged MH - Multivariate Analysis MH - Organic Cation Transporter 1/genetics/*metabolism MH - Probability MH - Prognosis MH - Proportional Hazards Models MH - Risk Factors MH - Sampling Studies MH - Sensitivity and Specificity MH - Sex Factors MH - Skin Neoplasms/mortality/*pathology/therapy MH - Survival Analysis MH - Syndecan-1/genetics/*metabolism MH - Tissue Culture Techniques EDAT- 2007/02/10 09:00 MHDA- 2007/03/30 09:00 CRDT- 2007/02/10 09:00 PHST- 2006/09/13 00:00 [received] PHST- 2006/11/22 00:00 [revised] PHST- 2006/12/19 00:00 [accepted] PHST- 2007/02/10 09:00 [pubmed] PHST- 2007/03/30 09:00 [medline] PHST- 2007/02/10 09:00 [entrez] AID - S0190-9622(07)00018-7 [pii] AID - 10.1016/j.jaad.2006.12.026 [doi] PST - ppublish SO - J Am Acad Dermatol. 2007 Apr;56(4):588-97. doi: 10.1016/j.jaad.2006.12.026. Epub 2007 Feb 7.