PMID- 15476173 OWN - NLM STAT- MEDLINE DCOM- 20090303 LR - 20181130 IS - 1003-9406 (Print) IS - 1003-9406 (Linking) VI - 21 IP - 5 DP - 2004 Oct TI - [Detection of ALK gene translocation by fluorescence in situ hybridization in paraffin-embedded anaplastic large cell lymphoma tissue and its significance]. PG - 470-3 AB - OBJECTIVE: To compare the value of fluorescence in situ hybridization(FISH) with that of immunohistochemistry in detecting ALK gene translocations and ALK fusion protein in anaplastic large cell lymphoma (ALCL) and investigate the possibility of FISH working on paraffin-embedded ALCL tissue. METHODS: Dual-color FISH and ALK-1 immunohistochemistry were used to detect ALK gene translocation and ALK fusion protein in 22 paraffin-embedded ALCL cases. RESULTS: The digestion time of tissue section was a key-point in the operating of FISH in paraffin-embedded tissue. ALK fusion protein expression was detected with ALK-1 antibody in 12 of the 20 systemic ALCL; it was not detected in 2 primary cutaneous ALCL. The Dual-color FISH results were 100% consonant with the immunohistochemical results. CONCLUSION: (1) Generally, immunohistochemical method is the first choice in detecting ALK gene translocation, but when conditions permit, FISH can be the first choice. (2) By the optimization of experimental conditions, FISH can be successfully performed on paraffin-embedded tissue. FAU - Li, Hai-yan AU - Li HY AD - Department of Pathology,West China Hospital,Sichuan University,Chengdu, Sichuan, 610041 P.R. China. FAU - Li, Gan-di AU - Li GD FAU - He, Xiao-jin AU - He XJ FAU - Liu, Wei-ping AU - Liu WP FAU - Zhang, Jie AU - Zhang J FAU - Yang, Wen-xiu AU - Yang WX LA - chi PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - China TA - Zhonghua Yi Xue Yi Chuan Xue Za Zhi JT - Zhonghua yi xue yi chuan xue za zhi = Zhonghua yixue yichuanxue zazhi = Chinese journal of medical genetics JID - 9425197 RN - EC 2.7.10.1 (ALK protein, human) RN - EC 2.7.10.1 (Anaplastic Lymphoma Kinase) RN - EC 2.7.10.1 (Protein-Tyrosine Kinases) RN - EC 2.7.10.1 (Receptor Protein-Tyrosine Kinases) SB - IM MH - Anaplastic Lymphoma Kinase MH - Humans MH - In Situ Hybridization, Fluorescence/*methods MH - Lymphoma, Large-Cell, Anaplastic/*genetics/pathology MH - Paraffin Embedding/methods MH - Protein-Tyrosine Kinases/*genetics MH - Receptor Protein-Tyrosine Kinases MH - Reproducibility of Results MH - Translocation, Genetic EDAT- 2004/10/12 09:00 MHDA- 2009/03/04 09:00 CRDT- 2004/10/12 09:00 PHST- 2004/10/12 09:00 [pubmed] PHST- 2009/03/04 09:00 [medline] PHST- 2004/10/12 09:00 [entrez] AID - 940621119 [pii] PST - ppublish SO - Zhonghua Yi Xue Yi Chuan Xue Za Zhi. 2004 Oct;21(5):470-3.