Hyaluronic acid (HA) provides synovial fluid viscoelasticity and has a lubricating effect. Injections of HA preparations into the knee joint are widely used as osteoarthritis therapy. The current HA products reduce pain but do not fully control inflammation. Oral methotrexate (MTX) has anti-inflammatory efficacy but is associated with severe adverse events. Based on the rationale that a conjugation of HA and MTX would combine the efficacy of the two clinically evaluated agents and avoid the risks of MTX alone, we designed HA-MTX conjugates in which the MTX connects with the HA through peptides susceptible to cleavage by lysosomal enzymes. Intra-articular injection of our HA-MTX conjugate (conjugate 4) produced a significant reduction of the knee swelling in antigen-induced arthritis rat, whereas free MTX, HA or a mixture of HA and MTX showed no or marginal effects on the model. The efficacy of conjugate 4 was almost the same as that of MTX oral treatment. Conjugate 4 has potential as a compound for the treatment of osteoarthritis. (C) 2009 Elsevier Ltd. All rights reserved.
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Sungkyunkwan Univ, Sch Pharm, Suwon 440746, South Korea
Korea Res Inst Stand & Sci, Ctr Bioanal, Taejon 305340, South KoreaSungkyunkwan Univ, Sch Chem Engn, Coll Engn, Suwon 440746, South Korea
Kim, Seol-Hee
Thambi, Thavasyappan
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Sungkyunkwan Univ, Sch Chem Engn, Coll Engn, Suwon 440746, South KoreaSungkyunkwan Univ, Sch Chem Engn, Coll Engn, Suwon 440746, South Korea
Thambi, Thavasyappan
You, Dong Gil
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Sungkyunkwan Univ, Sch Chem Engn, Coll Engn, Suwon 440746, South KoreaSungkyunkwan Univ, Sch Chem Engn, Coll Engn, Suwon 440746, South Korea
You, Dong Gil
Jeon, Jueun
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Sungkyunkwan Univ, Sch Chem Engn, Coll Engn, Suwon 440746, South KoreaSungkyunkwan Univ, Sch Chem Engn, Coll Engn, Suwon 440746, South Korea
Jeon, Jueun
Lee, Jong Oh
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Humedix Co Ltd, Anyang 431767, South KoreaSungkyunkwan Univ, Sch Chem Engn, Coll Engn, Suwon 440746, South Korea
Lee, Jong Oh
Chung, Bong Youl
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Humedix Co Ltd, Anyang 431767, South KoreaSungkyunkwan Univ, Sch Chem Engn, Coll Engn, Suwon 440746, South Korea
Chung, Bong Youl
Jo, Dong-Gyu
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Sungkyunkwan Univ, Sch Pharm, Suwon 440746, South Korea
Sungkyunkwan Univ, Dept Hlth Sci & Technol, SAIHST, Suwon 440746, South KoreaSungkyunkwan Univ, Sch Chem Engn, Coll Engn, Suwon 440746, South Korea
机构:
Chugai Pharmaceut Co Ltd, Res Div, 1-135 Komakado, Gotemba, Shizuoka 4128513, JapanChugai Pharmaceut Co Ltd, Res Div, 1-135 Komakado, Gotemba, Shizuoka 4128513, Japan
Tamura, Tatsuya
Higuchi, Yoshinobu
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Chugai Pharmaceut Co Ltd, Res Div, 1-135 Komakado, Gotemba, Shizuoka 4128513, JapanChugai Pharmaceut Co Ltd, Res Div, 1-135 Komakado, Gotemba, Shizuoka 4128513, Japan
Higuchi, Yoshinobu
Kitamura, Hidetomo
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Chugai Pharmaceut Co Ltd, Res Div, 1-135 Komakado, Gotemba, Shizuoka 4128513, JapanChugai Pharmaceut Co Ltd, Res Div, 1-135 Komakado, Gotemba, Shizuoka 4128513, Japan
Kitamura, Hidetomo
Murao, Naoaki
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Chugai Pharmaceut Co Ltd, Res Div, 1-135 Komakado, Gotemba, Shizuoka 4128513, JapanChugai Pharmaceut Co Ltd, Res Div, 1-135 Komakado, Gotemba, Shizuoka 4128513, Japan
Murao, Naoaki
Saitoh, Ryoichi
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Chugai Pharmaceut Co Ltd, Res Div, 1-135 Komakado, Gotemba, Shizuoka 4128513, JapanChugai Pharmaceut Co Ltd, Res Div, 1-135 Komakado, Gotemba, Shizuoka 4128513, Japan
Saitoh, Ryoichi
Morikawa, Tadashi
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Denka Co Ltd, New Business Planning Dept, Chuo Ku, 2-1-1 Nihonbashi Muromachi, Tokyo 1038338, JapanChugai Pharmaceut Co Ltd, Res Div, 1-135 Komakado, Gotemba, Shizuoka 4128513, Japan
Morikawa, Tadashi
Sato, Haruhiko
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Chugai Pharmaceut Co Ltd, Res Div, 1-135 Komakado, Gotemba, Shizuoka 4128513, JapanChugai Pharmaceut Co Ltd, Res Div, 1-135 Komakado, Gotemba, Shizuoka 4128513, Japan