Discovery of novel differentiation markers in the early stage of chondrogenesis by glycoform-focused reverse proteomics and genomics |
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Authors: | Takeshi Ishihara Kiyoshi Kakiya Koji Takahashi Hiroto Miwa Masatomo Rokushima Tomoyo Yoshinaga Yoshikazu Tanaka Takaomi Ito Hiroko Togame Hiroshi Takemoto Maho Amano Norimasa Iwasaki Akio Minami Shin-Ichiro Nishimura |
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Affiliation: | 1. Shionogi Innovation Center for Drug Discovery, Shionogi & Co. Ltd., Kita-ku, Sapporo 001-0021, Japan;2. Shionogi Pharmaceutical Research Center, Shionogi & Co. Ltd., Toyonaka, Osaka 561-0825, Japan;3. Faculty of Advanced Life Science and Graduate School of Life Science, Hokkaido University, Kita-ku, Sapporo 001-0021, Japan;4. Department of Orthopedic Surgery, Hokkaido University School of Medicine, Kita-ku, Sapporo 060-8638, Japan;5. Medicinal Chemistry Pharmaceuticals, Co., Ltd., Kita-ku, Sapporo 001-0022, Japan |
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Abstract: | BackgroundOsteoarthritis (OA) is one of the most common chronic diseases among adults, especially the elderly, which is characterized by destruction of the articular cartilage. Despite affecting more than 100 million individuals all over the world, therapy is currently limited to treating pain, which is a principal symptom of OA. New approaches to the treatment of OA that induce regeneration and repair of cartilage are strongly needed.MethodsTo discover potent markers for chondrogenic differentiation, glycoform-focused reverse proteomics and genomics were performed on the basis of glycoblotting-based comprehensive approach.ResultsExpression levels of high-mannose type N-glycans were up-regulated significantly at the late stage of differentiation of the mouse chondroprogenitor cells. Among 246 glycoproteins carrying this glycotype identified by ConA affinity chromatography and LC/MS, it was demonstrated that 52% are classified as cell surface glycoproteins. Gene expression levels indicated that mRNAs for 15 glycoproteins increased distinctly in the earlier stages during differentiation compared with Type II collagen. The feasibility of mouse chondrocyte markers in human chondrogenesis model was demonstrated by testing gene expression levels of these 15 glycoproteins during differentiation in human mesenchymal stem cells.ConclusionThe results showed clearly an evidence of up-regulation of 5 genes, ectonucleotide pyrophosphatase/phosphodiesterase family member 1, collagen alpha-1(III) chain, collagen alpha-1(XI) chain, aquaporin-1, and netrin receptor UNC5B, in the early stages of differentiation.General significanceThese cell surface 5 glycoproteins become highly sensitive differentiation markers of human chondrocytes that contribute to regenerative therapies, and development of novel therapeutic reagents. |
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Keywords: | Osteoarthritis Chondrogenic differentiation Glycomics Glycoform-focused reverse proteomics and genomics Mass spectrometry |
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