PMID- 24944700 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20211021 IS - 1792-1074 (Print) IS - 1792-1082 (Electronic) IS - 1792-1074 (Linking) VI - 7 IP - 4 DP - 2014 Apr TI - Abundant expression of HMGB1 in human T-cell lymphotropic virus type I-infected T-cell lines and high plasma levels of HMGB1 in patients with adult T-cell leukemia. PG - 1239-1242 AB - High mobility group box 1 (HMGB1) functions as a chromatin-associated nuclear protein and an extracellular signaling molecule. The concentration of HMGB1 protein and the expression of HMGB1 mRNA were analyzed by ELISA and polymerase chain reaction (PCR), respectively. The present study reports high plasma HMGB1 levels in patients with adult T-cell leukemia [ATL; which is caused by infection with human T-cell lymphotropic virus type I (HTLV-I)] compared with normal controls. In addition, HMGB1 was highly expressed in HTLV-I-infected T-cell lines compared with uninfected T-cell lines. The HTLV-I oncoprotein, Tax, induced extracellular release of HMGB1 in T cells. The results suggest that HMGB1 is a potential biomarker and a therapeutic target for ATL. FAU - Kimura, Ryuichiro AU - Kimura R AD - Department of Microbiology and Oncology, Graduate School of Medicine, University of the Ryukyus, Nishihara, Okinawa 903-0215, Japan ; Transdisciplinary Research Organization for Subtropics and Island Studies, University of the Ryukyus, Nishihara, Okinawa 903-0213, Japan. FAU - Mori, Naoki AU - Mori N AD - Department of Microbiology and Oncology, Graduate School of Medicine, University of the Ryukyus, Nishihara, Okinawa 903-0215, Japan. LA - eng PT - Journal Article DEP - 20140203 PL - Greece TA - Oncol Lett JT - Oncology letters JID - 101531236 PMC - PMC3961453 OTO - NOTNLM OT - HMGB1 OT - Tax OT - adult T-cell leukemia OT - human T-cell lymphotropic virus type I EDAT- 2014/06/20 06:00 MHDA- 2014/06/20 06:01 PMCR- 2014/02/03 CRDT- 2014/06/20 06:00 PHST- 2013/07/14 00:00 [received] PHST- 2014/01/15 00:00 [accepted] PHST- 2014/06/20 06:00 [entrez] PHST- 2014/06/20 06:00 [pubmed] PHST- 2014/06/20 06:01 [medline] PHST- 2014/02/03 00:00 [pmc-release] AID - ol-07-04-1239 [pii] AID - 10.3892/ol.2014.1851 [doi] PST - ppublish SO - Oncol Lett. 2014 Apr;7(4):1239-1242. doi: 10.3892/ol.2014.1851. Epub 2014 Feb 3.