PMID- 35585097 OWN - NLM STAT- MEDLINE DCOM- 20220520 LR - 20220716 IS - 2045-2322 (Electronic) IS - 2045-2322 (Linking) VI - 12 IP - 1 DP - 2022 May 18 TI - Cytogenetic testing by fluorescence in situ hybridization is improved by plasma cell sorting in multiple myeloma. PG - 8287 LID - 10.1038/s41598-022-11676-w [doi] LID - 8287 AB - Accurate detection of cytogenetic abnormalities has become more important for improving risk-adapted treatment strategies in multiple myeloma (MM). However, precise cytogenetic testing by fluorescence in situ hybridization (FISH) is challenged by the dilution effect of bone marrow specimens and poor growth of plasma cells ex vivo. It has been suggested that FISH should be performed in combination with plasma cell enrichment strategies. We examined cytogenetic abnormalities in newly diagnosed MM and compared the efficacy of three different enrichment modalities for FISH: direct FISH (n = 137), fluorescence immunophenotyping and interphase cytogenetics as a tool for the investigation of neoplasms (FICTION) technique (n = 224), and a plasma cell sorting FISH with fluorescence-activated cell sorter (FACS) (n = 132). FISH disclosed cytogenetic abnormalities in 38.0% of samples by direct FISH, 56.3% by FICTION, and 95.5% by FACS-FISH, and the percentage of cells with abnormal signals detected by FISH was significantly higher by FACS-FISH than direct FISH or FICTION. Our results suggest that the efficacy of FISH is dependent on the plasma cell enrichment modalities and reveal that plasma cell sorting FISH with FACS enables better detection of cytogenetic abnormalities in diagnostic MM samples. CI - (c) 2022. The Author(s). FAU - Ha, Jihye AU - Ha J AD - Department of Laboratory Medicine, Hanyang University College of Medicine, Seoul, Republic of Korea. FAU - Cho, Hyunsoo AU - Cho H AD - Department of Internal Medicine, Yonsei University College of Medicine, Severance Hospital, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea. FAU - Lee, Taek Gyu AU - Lee TG AD - Graduate School of Medical Science, Brain Korea 21 PLUS Project, Yonsei University College of Medicine, Seoul, Republic of Korea. FAU - Shin, Saeam AU - Shin S AD - Department of Laboratory Medicine, Yonsei University College of Medicine, Severance Hospital, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea. SAEAM0304@yuhs.ac. FAU - Chung, Haerim AU - Chung H AD - Department of Internal Medicine, Yonsei University College of Medicine, Severance Hospital, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea. FAU - Jang, Ji Eun AU - Jang JE AD - Department of Internal Medicine, Yonsei University College of Medicine, Severance Hospital, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea. FAU - Kim, Soo-Jeong AU - Kim SJ AD - Department of Internal Medicine, Yonsei University College of Medicine, Severance Hospital, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea. FAU - Cheong, June-Won AU - Cheong JW AD - Department of Internal Medicine, Yonsei University College of Medicine, Severance Hospital, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea. FAU - Lee, Seung-Tae AU - Lee ST AD - Department of Laboratory Medicine, Yonsei University College of Medicine, Severance Hospital, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea. AD - Dxome Co. Ltd. 8, Seongnam-daero 331beon-gil, Bundang-gu, Seongnam-si,, Gyeonggi-do, Republic of Korea. FAU - Kim, Jin Seok AU - Kim JS AD - Department of Internal Medicine, Yonsei University College of Medicine, Severance Hospital, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea. hemakim@yuhs.ac. FAU - Choi, Jong Rak AU - Choi JR AD - Department of Laboratory Medicine, Yonsei University College of Medicine, Severance Hospital, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea. AD - Dxome Co. Ltd. 8, Seongnam-daero 331beon-gil, Bundang-gu, Seongnam-si,, Gyeonggi-do, Republic of Korea. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20220518 PL - England TA - Sci Rep JT - Scientific reports JID - 101563288 SB - IM MH - Chromosome Aberrations MH - Cytogenetic Analysis MH - Humans MH - In Situ Hybridization, Fluorescence/methods MH - *Multiple Myeloma/diagnosis/genetics MH - *Plasma Cells PMC - PMC9117238 COIS- The authors declare no competing interests. EDAT- 2022/05/19 06:00 MHDA- 2022/05/21 06:00 PMCR- 2022/05/18 CRDT- 2022/05/18 23:18 PHST- 2021/12/09 00:00 [received] PHST- 2022/04/28 00:00 [accepted] PHST- 2022/05/18 23:18 [entrez] PHST- 2022/05/19 06:00 [pubmed] PHST- 2022/05/21 06:00 [medline] PHST- 2022/05/18 00:00 [pmc-release] AID - 10.1038/s41598-022-11676-w [pii] AID - 11676 [pii] AID - 10.1038/s41598-022-11676-w [doi] PST - epublish SO - Sci Rep. 2022 May 18;12(1):8287. doi: 10.1038/s41598-022-11676-w.