• Hao Wang, Xiao-Meng Zhang, Go Tomiyoshi, Rika Nakamura, Natsuko Shinmen, Hideyuki Kuroda, Risa Kimura, Seiichiro Mine, Ikuo Kamitsukasa, Takeshi Wada, Akiyo Aotsuka, Yoichi Yoshida, Eiichi Kobayashi, Tomoo Matsutani, Yasuo Iwadate, Kazuo Sugimoto, Masahiro Mori, Akiyuki Uzawa, Mayumi Muto, Satoshi Kuwabara, Minoru Takemoto, Kazuki Kobayashi, Harukiyo Kawamura, Ryoichi Ishibashi, Koutaro Yokote, Mikiko Ohno, Po-Min Chen, Eiichiro Nishi, Koh Ono, Takeshi Kimura, Toshio Machida, Hirotaka Takizawa, Koichi Kashiwado, Hideaki Shimada, Masaaki Ito, Ken-Ichiro Goto, Katsuro Iwase, Hiromi Ashino, Akiko Taira, Emiko Arita, Masaki Takiguchi, and Takaki Hiwasa.
• Department of Biochemistry and Genetics, Graduate School of Medicine, Chiba University, Chiba, Japan.
• Oncotarget. 2018 Jan 19; 9 (5): 5600-5613.

AbstractTransient ischemic attack (TIA) is a predictor for cerebral infarction (CI), and early diagnosis of TIA is extremely important for the prevention of CI. We set out to identify novel antibody biomarkers for TIA and CI, and detected matrix metalloproteinase 1 (MMP1), chromobox homolog 1 (CBX1), and chromobox homolog 5 (CBX5) as candidate antigens using serological identification of antigens by recombinant cDNA expression cloning (SEREX) and Western blotting to confirm the presence of serum antibodies against the antigens. Amplified luminescent proximity homogeneous assay-linked immunosorbent assay (AlphaLISA) revealed that serum antibody levels were significantly higher in patients with TIA or acute-phase CI (aCI) compared with healthy donors (P < 0.01). Spearman's correlation analysis and multivariate logistic regression analysis demonstrated that levels of anti-MMP1, anti-CBX1, and anti-CBX5 antibodies were associated with age, cigarette-smoking habits, and blood pressure. Thus, serum levels of antibodies against MMP1, CBX1, and CBX5 could potentially serve as useful tools for diagnosing TIA and predicting the onset of aCI.

5 keywords...

hide…