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Mori A, Onozawa M, Hidaka D, Yokoyama S, Miyajima T, Yokoyama E, Ogasawara R, Izumiyama K, Saito M, Fujisawa S, Ota S, Kakinoki Y, Tsutsumi Y, Yamamoto S, Miyagishima T, Nagashima T, Iwasaki H, Kobayashi H, Haseyama Y, Kurosawa M, Morioka M, Teshima T, Kondo T. Non-age-related neoplastic loss of sex chromosome correlated with prolonged survival in real-world CBF-AML patients. Int J Hematol 2021; 115:188-197. [PMID: 34739701 DOI: 10.1007/s12185-021-03238-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 10/12/2021] [Accepted: 10/12/2021] [Indexed: 11/25/2022]
Abstract
In this real-world clinical study, in which we determined eligibility for allogenic hematopoietic stem cell transplantation by prognostic factors and minimal residual disease status, we retrospectively evaluated cytogenetic, genetic, and clinical features in 96 patients with core-binding factor acute myeloid leukemia (CBF-AML) including 62 patients with RUNX1/RUNX1T1 and 34 patients with CBFβ/MYH11. Multivariate analyses for 5-year overall survival (OS) in CBF-AML patients revealed that age of 50 years or older (HR: 3.46, 95% CI 1.47-8.11, P = 0.004) and receiving 2 or more induction cycles (HR: 3.55, 95% CI 1.57-8.05, P = 0.002) were independently associated with worse OS and that loss of sex chromosome (LOS) was independently associated with better OS (HR: 0.09, 95% CI 0.01-0.71, P = 0.022). At the time of complete remission, all 21 karyotyped patients with LOS had a normal karyotype. Furthermore, in all 9 patients with LOS who had a mosaic of metaphase cells with and without t(8;21) or inv(16), the metaphase cells without t(8;21)/inv(16) showed a normal karyotype. These results proved that LOS was not age-related and physiological, but rather a neoplastic chromosomal abnormality.
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Affiliation(s)
- Akio Mori
- Blood Disorders Center, Aiiku Hospital, S4W25, Chuo-ku, Sapporo, 064-0804, Japan.
| | - Masahiro Onozawa
- Department of Hematology, Graduate School of Medicine, Hokkaido University Faculty of Medicine, Sapporo, Japan
| | - Daisuke Hidaka
- Department of Hematology, Graduate School of Medicine, Hokkaido University Faculty of Medicine, Sapporo, Japan
| | - Shota Yokoyama
- Department of Hematology, Graduate School of Medicine, Hokkaido University Faculty of Medicine, Sapporo, Japan
| | - Toru Miyajima
- Blood Disorders Center, Aiiku Hospital, S4W25, Chuo-ku, Sapporo, 064-0804, Japan
| | - Emi Yokoyama
- Blood Disorders Center, Aiiku Hospital, S4W25, Chuo-ku, Sapporo, 064-0804, Japan
| | - Reiki Ogasawara
- Blood Disorders Center, Aiiku Hospital, S4W25, Chuo-ku, Sapporo, 064-0804, Japan
| | - Koh Izumiyama
- Blood Disorders Center, Aiiku Hospital, S4W25, Chuo-ku, Sapporo, 064-0804, Japan
| | - Makoto Saito
- Blood Disorders Center, Aiiku Hospital, S4W25, Chuo-ku, Sapporo, 064-0804, Japan
| | - Shinichi Fujisawa
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Japan
| | - Shuichi Ota
- Department of Hematology, Sapporo Hokuyu Hospital, Sapporo, Japan
| | | | - Yutaka Tsutsumi
- Department of Hematology, Hakodate Municipal Hospital, Hakodate, Japan
| | - Satoshi Yamamoto
- Department of Hematology, Sapporo City General Hospital, Sapporo, Japan
| | | | - Takahiro Nagashima
- Department of Internal Medicine/General Medicine, Kitami Red Cross Hospital, Kitami, Japan
| | - Hiroshi Iwasaki
- Department of Hematology, Sapporo Kosei General Hospital, Sapporo, Japan
| | - Hajime Kobayashi
- Department of Hematology, Obihiro Kosei Hospital, Obihiro, Japan
| | | | - Mitsutoshi Kurosawa
- Department of Hematology, National Hospital Organization Hokkaido Cancer Center, Sapporo, Japan
| | - Masanobu Morioka
- Blood Disorders Center, Aiiku Hospital, S4W25, Chuo-ku, Sapporo, 064-0804, Japan
| | - Takanori Teshima
- Department of Hematology, Graduate School of Medicine, Hokkaido University Faculty of Medicine, Sapporo, Japan
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Japan
| | - Takeshi Kondo
- Blood Disorders Center, Aiiku Hospital, S4W25, Chuo-ku, Sapporo, 064-0804, Japan
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