JPH08299788A - Adsorbent for saccharified protein - Google Patents

Adsorbent for saccharified protein

Info

Publication number
JPH08299788A
JPH08299788A JP7110576A JP11057695A JPH08299788A JP H08299788 A JPH08299788 A JP H08299788A JP 7110576 A JP7110576 A JP 7110576A JP 11057695 A JP11057695 A JP 11057695A JP H08299788 A JPH08299788 A JP H08299788A
Authority
JP
Japan
Prior art keywords
adsorbent
monomer unit
glycated protein
dihydroxyboryl
anionic functional
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP7110576A
Other languages
Japanese (ja)
Inventor
Takashi Murabayashi
俊 村林
Toshio Yuta
敏夫 勇田
Norio Miyaura
憲夫 宮浦
Toyoji Kakuchi
豊次 覚知
Yasuhisa Abe
泰久 阿部
Shuhei Nakaji
修平 中路
Kiichirou Oka
樹一郎 岡
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kuraray Co Ltd
Original Assignee
Kuraray Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kuraray Co Ltd filed Critical Kuraray Co Ltd
Priority to JP7110576A priority Critical patent/JPH08299788A/en
Publication of JPH08299788A publication Critical patent/JPH08299788A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To selectively and efficiently adsorption-remove saccharified protein from a body liquid by using a copolymer comprising a monomer unit having dihydroxyboryl group and a monomer unit having anionic functional groups to constitute an adsorbent. CONSTITUTION: This adsorbent for saccharified protein consists of a copolymer comprising a monomer unit having dihydroxyboryl groups and a monomer unit having anionic functional groups. This adsorbent for saccharified protein is brought into contact with a body liquid to adsorption-remove saccharified protein from the body liquid. The monomer unit having dihydroxyboryl groups [(CHO)2 B-] is not specified as far as it has dihydroxyboryl groups. Also, the monomer unit having anionic functional groups is not specified as far as it has anionic functional groups. As for the monomer source material having dihydroxyboryl groups, p-styreneboronic acid is preferable, and acrylic acid is preferable for the monomer source material having anionic functional groups.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は糖化蛋白質吸着材および
該糖化蛋白質吸着材を用いて体液から糖化蛋白質を吸着
除去する方法に関する。本発明の糖化蛋白質吸着材は体
液中より選択的かつ効率的に糖化蛋白質を吸着除去でき
るため、糖化蛋白質が関与する糖尿病性腎炎等の疾患の
治療に有用である。
TECHNICAL FIELD The present invention relates to a glycated protein adsorbent and a method for adsorbing and removing glycated protein from a body fluid using the glycated protein adsorbent. The glycated protein adsorbent of the present invention is capable of selectively and efficiently adsorbing and removing the glycated protein from the body fluid, and thus is useful for treating diseases such as diabetic nephritis associated with the glycated protein.

【0002】[0002]

【従来の技術】近年、糖尿病患者に生じる合併症である
動脈硬化性血管障害の病因物質の1つとして、血中の糖
(主にグルコース)が蛋白質のアミノ基(主としてリジ
ン残基)と非酵素的に反応して生じる糖化蛋白質が注目
されるようになってきた。また糖尿病性腎炎の成因にも
糖化蛋白質が関与している可能性が示唆されている
(「メビオ」、8巻、9号、29頁、1991年;「腎
と透析」、37巻、4号、699頁、1994年;「腎
と透析」、37巻、4号、705頁、1994年)。さ
らに透析アミロイドーシス患者においては、アミロイド
組織中に糖化β2ミクログロブリンが検出されており、
疾患発症との関係について現在研究が行われている
(「透析会誌」、27巻、8号、1119頁、1994
年)。
2. Description of the Related Art In recent years, as one of the etiological agents of arteriosclerotic vascular disease, which is a complication of diabetic patients, sugar in blood (mainly glucose) is separated from amino groups (mainly lysine residues) of proteins. Glycated proteins produced by enzymatic reaction have been attracting attention. It has also been suggested that glycated proteins may be involved in the pathogenesis of diabetic nephritis ("Mevio", Vol. 8, No. 9, p. 29, 1991; "Kidney and Dialysis", Vol. 37, No. 4). , 699, 1994; "Kidney and Dialysis," Vol. 37, No. 4, 705, 1994). Furthermore, in dialysis amyloidosis patients, glycated β2 microglobulin has been detected in amyloid tissue,
Research is currently being conducted on the relationship with disease development ("Dialysis Society", Vol. 27, No. 8, p. 1119, 1994).
Year).

【0003】糖化蛋白質を吸着する方法としては、イオ
ン交換クロマトグラフィーによる方法[ジャーナル・オ
ブ・バイオケミストリー(Journal of Biochemistry)、
254巻、3号、595頁、1979年]、ジヒドロキ
シボリル基を利用したアフィニティークロマトグラフィ
ーによる方法などが知られている[アナリティカル・レ
ターズ(Analytical Letters)、14巻、B8号、649
頁、1981年]。
As a method for adsorbing a glycated protein, a method by ion exchange chromatography [Journal of Biochemistry,
254, No. 3, 595, 1979], a method by affinity chromatography using a dihydroxyboryl group is known [Analytical Letters, Volume 14, B8, 649].
P., 1981].

【0004】[0004]

【発明が解決しようとする課題】上記のイオン交換クロ
マトグラフィーやジヒドロキシボリル基を利用したアフ
ィニティークラマトグラフィーによる方法で体液から糖
化蛋白質を吸着除去しようとすると、糖化蛋白質ととも
に体液中に存在するグルコース等の糖やグロブリン等の
糖蛋白質も吸着されるため、糖化蛋白質を選択的に吸着
除去するためには、あらかじめ体液から糖や糖蛋白質を
他の方法で分離しておく必要があった。ここで、糖蛋白
質とは、糖が蛋白質のセリン、トレオニンまたはアスパ
ラギン残基の側鎖と酵素的に反応して生じる蛋白質を意
味し、糖化蛋白質とは、糖が蛋白質のアミノ基(主とし
てリジン残基)と非酵素的に反応して生じる蛋白質を意
味する。
[Problems to be Solved by the Invention] When an attempt is made to adsorb and remove a glycated protein from a body fluid by the above-mentioned ion exchange chromatography or affinity chromatography using a dihydroxyboryl group, glucose and the like present in the body fluid together with the glycated protein are removed. Glycoproteins such as sugars and globulins are also adsorbed, and therefore, in order to selectively adsorb and remove glycated proteins, it was necessary to separate sugars and glycoproteins from the body fluid in advance by another method. Here, the glycoprotein means a protein produced by enzymatic reaction of sugar with the side chain of serine, threonine or asparagine residue of the protein, and glycated protein means that the sugar has an amino group (mainly lysine residue) of the protein. Group) means a protein produced by non-enzymatic reaction with a group.

【0005】しかして、本発明の目的は、糖や糖蛋白質
が存在する体液中から選択的かつ効率的に糖化蛋白質を
吸着除去する吸着材および方法を提供することにある。
Therefore, an object of the present invention is to provide an adsorbent and a method for selectively and efficiently adsorbing and removing glycated proteins from a body fluid containing sugars and glycoproteins.

【0006】[0006]

【課題を解決するための手段】本発明によれば、上記の
目的は、ジヒドロキシボリル基を有するモノマー単位お
よびアニオン性官能基を有するモノマー単位からなる共
重合体よりなる糖化蛋白質吸着材および該糖化蛋白質吸
着材を体液と接触させて体液から糖化蛋白質を吸着除去
する方法を提供することによって達成される。
According to the present invention, the above object is to provide a glycated protein adsorbent comprising a copolymer comprising a monomer unit having a dihydroxyboryl group and a monomer unit having an anionic functional group, and the saccharification thereof. It is achieved by providing a method for contacting a protein adsorbent with a body fluid to adsorb and remove glycated proteins from the body fluid.

【0007】本発明におけるジヒドロキシボリル基
[式:(HO)2B−で示される基]を有するモノマー
単位は、モノマー単位中にジヒドキシボリル基を有する
ものであれば特に制限はなく、モノマー単位当たりのジ
ヒドロキシボリル基の数は、1個であっても、2個以上
であってもよい。ジヒドロキシボリル基を有するモノマ
ー単位を誘導するモノマーとしては、p−ボロン酸スチ
レン(p−ジヒドロキシボリルスチレン)、m−ジヒド
ロキシボリル−α−メチルスチレン、2,4−ビス(ジ
ヒドロキシボリル)スチレン、m−ジヒドロキシボリル
アリルベンゼン、N−(p−ジヒドロキシボリルフェニ
ル)アクリルアミド、N−(p−ジヒドロキシボリルフ
ェニル)メタクリルアミド、N−[2,4,6−トリス
(ジヒドロキシボリル)フェニル]メタクリルアミドな
どが挙げられ、糖化蛋白質に対する親和性の観点から、
p−ボロン酸スチレン、N−(p−ジヒドロキシボリル
フェニル)アクリルアミドが好ましい。またジヒドロキ
シボリル基を有するモノマー単位は、1種のみからなっ
ていても、2種以上からなっていてもよい。
The monomer unit having a dihydroxyboryl group [group represented by the formula: (HO) 2 B-] in the present invention is not particularly limited as long as it has a dihydroxyboryl group in the monomer unit. The number of dihydroxyboryl groups may be 1 or 2 or more. Examples of the monomer for deriving the monomer unit having a dihydroxyboryl group include p-boronic acid styrene (p-dihydroxyborylstyrene), m-dihydroxyboryl-α-methylstyrene, 2,4-bis (dihydroxyboryl) styrene, m- Dihydroxyborylallylbenzene, N- (p-dihydroxyborylphenyl) acrylamide, N- (p-dihydroxyborylphenyl) methacrylamide, N- [2,4,6-tris (dihydroxyboryl) phenyl] methacrylamide and the like can be mentioned. , From the viewpoint of affinity for glycated proteins,
Styrene p-boronic acid and N- (p-dihydroxyborylphenyl) acrylamide are preferred. Moreover, the monomer unit having a dihydroxyboryl group may be composed of only one kind, or may be composed of two or more kinds.

【0008】本発明におけるアニオン性官能基を有する
モノマー単位は、モノマー単位中にアニオン性官能基を
有するものであれば特に制限はなく、モノマー単位当た
りのアニオン性官能基の数は1個であっても、2個以上
であってもよい。ここで、アニオン性官能基とは、負に
帯電し得る官能基を意味する。アニオン性官能基として
は、カルボキシル基、スルホン酸基、硫酸エステル基、
シラノール基、リン酸エステル基、フェノール性水酸基
などが例示され、中でも、糖化蛋白質に対する選択性の
観点から、カルボキシル基、スルホン酸基が好ましい。
また、アニオン性官能基を有するモノマー単位中のアニ
オン性官能基は1種であっても、2種以上であってもよ
い。アニオン性官能基を有するモノマー単位を誘導する
モノマーとしては、アクリル酸、ビニル硫酸、ビニルス
ルホン酸、ビニルリン酸、スチレンスルホン酸、スチレ
ンリン酸などが挙げられ、糖化蛋白質に対する選択性の
観点から、アクリル酸が好ましい。また、アニオン性官
能基を有するモノマー単位は、1種のみからなっていて
も、2種以上からなっていてもよい。
The monomer unit having an anionic functional group in the present invention is not particularly limited as long as it has an anionic functional group in the monomer unit, and the number of anionic functional groups per monomer unit is one. Alternatively, it may be two or more. Here, the anionic functional group means a functional group which can be negatively charged. As the anionic functional group, a carboxyl group, a sulfonic acid group, a sulfate ester group,
Examples thereof include silanol groups, phosphoric acid ester groups, and phenolic hydroxyl groups. Among them, carboxyl groups and sulfonic acid groups are preferable from the viewpoint of selectivity for glycated proteins.
Moreover, the anionic functional group in the monomer unit having an anionic functional group may be one type or two or more types. Examples of the monomer that derives the monomer unit having an anionic functional group include acrylic acid, vinyl sulfuric acid, vinyl sulfonic acid, vinyl phosphoric acid, styrene sulfonic acid, and styrene phosphoric acid. Acids are preferred. Moreover, the monomer unit having an anionic functional group may be composed of only one kind, or may be composed of two or more kinds.

【0009】本発明におけるジヒドロキシボリル基を有
するモノマー単位およびアニオン性官能基を有するモノ
マー単位からなる共重合体(以下、これを単に共重合体
と略称することがある)中のアニオン性官能基を有する
モノマー単位の含有率は、20〜80モル%の範囲内で
あるのが好ましく、25〜75モル%の範囲内がより好
ましい。また、共重合体中のジヒドロキシボリル基を有
するモノマー単位の含有率は、80〜20モル%の範囲
内であるのが好ましく、75〜25モル%の範囲内がよ
り好ましい。共重合体中のアニオン性官能基を有するモ
ノマー単位およびジヒドロキシボリル基を有するモノマ
ー単位の含有率が上記の範囲外である場合には、体液中
より選択的に十分量の糖化蛋白質を吸着除去することが
困難になる。
The anionic functional group in the copolymer (hereinafter, may be simply referred to as a copolymer) composed of a monomer unit having a dihydroxyboryl group and a monomer unit having an anionic functional group in the present invention is The content of the monomer units contained therein is preferably in the range of 20 to 80 mol%, more preferably in the range of 25 to 75 mol%. The content of the monomer unit having a dihydroxyboryl group in the copolymer is preferably in the range of 80 to 20 mol%, more preferably 75 to 25 mol%. When the content of the monomer unit having an anionic functional group and the monomer unit having a dihydroxyboryl group in the copolymer is out of the above range, a sufficient amount of glycated protein is selectively adsorbed and removed from the body fluid. Becomes difficult.

【0010】また、50モル%以下であれば、上記のジ
ヒドロキシボリル基を有するモノマー単位およびアニオ
ン性官能基を有するモノマー単位以外のモノマー単位を
含有することもできる。このようなモノマー単位を誘導
するモノマーとしては、スチレン、クロロスチレン、p
−エチルスチレン、ジビニルベンゼン、フタル酸ジアリ
ル等のビニル芳香族化合物、アクリル酸メチル、メタク
リル酸メチル、アリルグリシジルエーテル、アクリロニ
トリル、エチレングリコールジメタクリレートなどが例
示される。
Further, if it is 50 mol% or less, a monomer unit other than the above-mentioned monomer unit having a dihydroxyboryl group and a monomer unit having an anionic functional group can be contained. Examples of the monomer for deriving such a monomer unit include styrene, chlorostyrene, p
Examples thereof include vinyl aromatic compounds such as ethylstyrene, divinylbenzene and diallyl phthalate, methyl acrylate, methyl methacrylate, allyl glycidyl ether, acrylonitrile and ethylene glycol dimethacrylate.

【0011】本発明における共重合体の分子量は、共重
合体の強度や加工性の観点から、1000以上が好まし
く、5000〜1000000の範囲内がより好まし
い。
The molecular weight of the copolymer in the present invention is preferably 1,000 or more, more preferably 5,000 to 1,000,000, from the viewpoint of the strength and processability of the copolymer.

【0012】本発明における共重合体は、ジヒドロキシ
ボリル基を有するモノマーおよびアニオン性官能基を有
するモノマーからなる反応原料を、縮合重合、ラジカル
重合、イオン重合、開環重合等の公知の重合方法に従っ
て重合させることにより製造することができる。
The copolymer in the present invention is prepared by reacting a reaction raw material composed of a monomer having a dihydroxyboryl group and a monomer having an anionic functional group with a known polymerization method such as condensation polymerization, radical polymerization, ionic polymerization and ring-opening polymerization. It can be produced by polymerizing.

【0013】このようにして得られる共重合体は、その
まま本発明の糖化蛋白質吸着材とすることができる。ま
た例えば、粒子状、繊維状等の形態を有する担体に共重
合体をコーティングして、本発明の糖化蛋白質吸着材と
することもできる。粒子状担体としてはアガロース系、
デキストラン系、セルロース系等の有機系担体やガラス
系、シリカ系等の無機系担体などが挙げられる。また繊
維状担体としては、ポリエステル、ナイロン、アクリ
ル、ビニロン等の公知の繊維を用いることができる。コ
ーティング方法としては、例えば、共重合体を適当な溶
媒に溶解させて得られる溶液と担体とを一定時間接触さ
せた後、乾燥させる方法が一般的である。
The copolymer thus obtained can be directly used as the glycated protein adsorbent of the present invention. Further, for example, a carrier having a particulate or fibrous form may be coated with a copolymer to obtain the glycated protein adsorbent of the present invention. As a particulate carrier, agarose-based,
Examples thereof include dextran-based and cellulose-based organic carriers and glass-based and silica-based inorganic carriers. As the fibrous carrier, known fibers such as polyester, nylon, acrylic and vinylon can be used. As a coating method, for example, a method in which a solution obtained by dissolving a copolymer in an appropriate solvent is contacted with a carrier for a certain period of time and then dried is generally used.

【0014】本発明の糖化蛋白質吸着材の形状として
は、粒子状、繊維状、シート状、膜状、中空糸状などが
例示され、使用方法などに応じて適宣選択することがで
きる。本発明の糖化蛋白質吸着材をカラム等の容器に充
填して使用する場合には、粒子状または繊維状であるの
が好ましい。この場合の糖化蛋白質吸着材は、体液中の
糖化蛋白質を吸着させるために有効表面積が広く、かつ
体液を十分に通過させ得る間隔が形成されているのが好
ましい。かかる観点から、粒子状の糖化蛋白質吸着材の
粒径としては0.5〜5000μmの範囲内が好ましく、20〜10
00μmの範囲内がより好ましい。また繊維状の糖化蛋白
質吸着材の場合は、繊維径は1000μm以下であるのが好
ましく、10μm以下であるのがより好ましい。
The glycated protein adsorbent of the present invention may be in the form of particles, fibers, sheets, membranes, hollow fibers, etc., which can be selected appropriately depending on the method of use. When the glycated protein adsorbent of the present invention is used by filling it in a container such as a column, it is preferably in the form of particles or fibers. In this case, it is preferable that the glycated protein adsorbent has a large effective surface area for adsorbing the glycated protein in the body fluid and is formed with an interval that allows the body fluid to sufficiently pass therethrough. From this viewpoint, the particle size of the particulate glycated protein adsorbent is preferably in the range of 0.5 to 5000 μm, and 20 to 10 μm.
The range of 00 μm is more preferable. In the case of a fibrous glycated protein adsorbent, the fiber diameter is preferably 1000 μm or less, more preferably 10 μm or less.

【0015】上記のように使用するカラムは、入口部と
出口部を有し、かつ入口部と吸着材層の間および出口部
と吸着材層の間にそれぞれ体液は通過するが吸着材は通
過しない、ポリエステルなどの材質のフィルターを備え
ているものが好ましい。カラムの材質としては、ポリエ
チレン、ポリプロピレン、ポリカーボネート、ポリエス
テル、ポリメチルメタクリレートなどが例示される。こ
れらのうちオートクレーブ滅菌、γ−線滅菌などの滅菌
処理に付すことができる点から、ポリプロピレン、ポリ
カーボネートが好ましい。
The column used as described above has an inlet portion and an outlet portion, and body fluid passes between the inlet portion and the adsorbent layer and between the outlet portion and the adsorbent layer, but the adsorbent passes through. No, a filter provided with a material such as polyester is preferable. Examples of the material of the column include polyethylene, polypropylene, polycarbonate, polyester, polymethylmethacrylate and the like. Of these, polypropylene and polycarbonate are preferable because they can be subjected to sterilization treatment such as autoclave sterilization and γ-ray sterilization.

【0016】本発明の糖化蛋白質吸着材を体液と接触さ
せることにより、体液中の糖化蛋白質を選択的かつ効率
的に吸着除去することができる。ここで体液とは生体由
来の液性成分を意味し、例えば血液、血漿、血清、腹
水、リンパ液、関節内液およびこれらから得られる分画
成分などが挙げられる。糖化蛋白質吸着材を体液と接触
させる方法としては、体内より体液を取り出してバッグ
などの容器に貯留しこれに糖化蛋白質吸着材を混合する
方法、カラムに糖化蛋白質吸着材を充填しこれに体液を
通過させる方法などがあるが、操作の簡便性の観点から
カラムに糖化蛋白質吸着材を充填しこれに体液を通過さ
せる方法が好ましい。
By contacting the glycated protein adsorbent of the present invention with a body fluid, the glycated protein in the body fluid can be selectively and efficiently adsorbed and removed. Here, the body fluid means a liquid component derived from a living body, and examples thereof include blood, plasma, serum, ascites fluid, lymph fluid, synovial fluid, and fractionated components obtained from these. The method for contacting the glycated protein adsorbent with the body fluid is to remove the body fluid from the body, store it in a container such as a bag, and mix it with the glycated protein adsorbent, or fill the column with the glycated protein adsorbent and add the body fluid to it. Although there is a method of passing the glycated protein adsorbent, a method of filling the column with the adsorbent for glycated protein and passing the body fluid through the adsorbent is preferable.

【0017】[0017]

【実施例】以下、実施例により本発明を説明するが、本
発明はこれらにより限定されるものではない。
EXAMPLES The present invention will be described below with reference to examples, but the present invention is not limited thereto.

【0018】実施例1 p−ボロン酸スチレン671mgとアクリル酸329mgの混合物
(p−ボロン酸スチレンとアクリル酸とのモル比:1対
1)に、過硫酸カリウム10mgおよび蒸留水20mlを加え、
窒素置換後、密閉して、60℃で24時間反応させた。反応
終了後、反応液をジエチルエーテルに加えて、共重合体
を沈澱させ、一日放置後、デカンテーションによりジエ
チルエーテルを除き、再度ジエチルエーテルを加えた。
この操作を2回繰り返して、未反応のモノマーおよび水
を除去した。その後、大気中、室温において自然乾燥さ
せて、共重合体を得た。得られた共重合体中のアクリル
酸単位の含有率を13C−NMRにより分析したところ52
モル%であった。得られた共重合体をジメチルスルホキ
シドに0.1重量%になるように溶解して得られた溶液20m
lを、平均径1.5μmのポリプロピレン製超極細繊維100mg
を入れた試験管に加えて、室温で1時間放置することに
より共重合体を超極細繊維にコーティングした。共重合
体がコーティングされた超極細繊維を試験管から取り出
し、テフロンシート上で赤外線ランプを用いて乾燥さ
せ、糖化蛋白質吸着材(以下、これを吸着材1と略称す
ることがある)を得た。
Example 1 To a mixture of 671 mg of p-boronic acid styrene and 329 mg of acrylic acid (molar ratio of styrene p-boronic acid and acrylic acid: 1: 1), 10 mg of potassium persulfate and 20 ml of distilled water were added,
After purging with nitrogen, it was sealed and reacted at 60 ° C. for 24 hours. After completion of the reaction, the reaction solution was added to diethyl ether to precipitate the copolymer, and after standing for one day, diethyl ether was removed by decantation, and diethyl ether was added again.
This operation was repeated twice to remove unreacted monomer and water. Then, it was naturally dried in the air at room temperature to obtain a copolymer. The content of acrylic acid units in the obtained copolymer was analyzed by 13 C-NMR and found to be 52.
It was mol%. 20m solution obtained by dissolving the obtained copolymer in dimethylsulfoxide to a concentration of 0.1% by weight.
l is 100 mg of ultrafine polypropylene fiber with an average diameter of 1.5 μm
The copolymer was coated on the ultrafine fibers by allowing the copolymer to stand in a test tube containing the mixture and leaving it at room temperature for 1 hour. The ultrafine fiber coated with the copolymer was taken out from the test tube and dried on a Teflon sheet using an infrared lamp to obtain a glycated protein adsorbent (hereinafter, this may be abbreviated as adsorbent 1). .

【0019】実施例2および3 実施例1においてp-ボロン酸スチレンとアクリル酸との
モル比を表1に示したように変更した以外は実施例1と
同様の操作を行い、表1に示した組成の共重合体を得
た。これらの共重合体についてそれぞれ実施例1と同様
の操作を行い、糖化蛋白質吸着材(以下、実施例2およ
び3で得られた糖化蛋白質吸着材をそれぞれ吸着材2お
よび吸着材3と略称することがある)を得た。
Examples 2 and 3 The same operations as in Example 1 were carried out except that the molar ratio of styrene p-boronic acid to acrylic acid was changed to that shown in Table 1 and shown in Table 1. A copolymer having a different composition was obtained. The same operations as in Example 1 were performed on these copolymers, respectively, and the glycated protein adsorbents (hereinafter, the glycated protein adsorbents obtained in Examples 2 and 3 are abbreviated as adsorbent 2 and adsorbent 3 respectively). Got).

【0020】比較例1および2 実施例1においてp-ボロン酸スチレンとアクリル酸との
モル比を表1に示したように変更した以外は実施例1と
同様の操作を行い、表1に示した組成の重合体を得た。
これらの重合体についてそれぞれ実施例1と同様の操作
を行い、糖化蛋白質吸着材(以下、比較例1および2で
得られた糖化蛋白質吸着材をそれぞれ吸着材4および吸
着材5と略称することがある)を得た。
Comparative Examples 1 and 2 The same procedure as in Example 1 was carried out except that the molar ratio of styrene p-boronic acid to acrylic acid was changed to that shown in Table 1 and shown in Table 1. A polymer having a different composition was obtained.
The same operation as in Example 1 was performed on each of these polymers, and the glycated protein adsorbents (hereinafter, the glycated protein adsorbents obtained in Comparative Examples 1 and 2 are referred to as adsorbent 4 and adsorbent 5 respectively). I got).

【0021】[0021]

【表1】 [Table 1]

【0022】実施例4 健常者血漿30mlにグルコースをその濃度が20mg/mlにな
るように溶解し、37℃で15日間放置した。放置後、リン
酸緩衝液(pH 7.4)に対して透析して、グルコースを除
いた後、健常者血漿中のグルコース濃度範囲(0.60〜1.
10mg/ml)内である1.00mg/mlになるようにグルコースを
30mg添加し、これを糖化蛋白質含有血漿とした。実施例
1〜3および比較例1〜2で得られた糖化蛋白質吸着材
350mgに対し、それぞれ糖化蛋白質含有血漿0.5mlを加
え、37℃で2時間攪拌した。攪拌後、反応液の上清中の
糖化蛋白質量を日本ロッシュ社製フルクトスアミンテス
ト「ロシュ」IIにより、また総蛋白質量をBIO-RAD社製
プロテインアッセイにより測定した。糖化蛋白質含有血
漿をコントロール液とし、吸着材1〜5で処理した後の
糖化蛋白質含有血漿を試験液として糖化蛋白質および総
蛋白質吸着除去率を下記の式(I)により算出した。結
果を下記の表2に示した。 吸着除去率(%)={(X−Y)/X}×100 (I) (式中、Xはコントロール液中の糖化蛋白質濃度または
総蛋白質濃度を表し、Yは試験液中の糖化蛋白質濃度ま
たは総蛋白質濃度を表す。)
Example 4 Glucose was dissolved in 30 ml of plasma of a healthy person so that the concentration thereof was 20 mg / ml, and the mixture was left at 37 ° C. for 15 days. After leaving it to stand, it was dialyzed against a phosphate buffer (pH 7.4) to remove glucose, and then the glucose concentration range (0.60 to 1.
Glucose to be 1.00mg / ml which is within 10mg / ml)
30 mg was added to obtain glycated protein-containing plasma. Glycated protein adsorbents obtained in Examples 1-3 and Comparative Examples 1-2
To 350 mg, 0.5 ml of glycated protein-containing plasma was added, and the mixture was stirred at 37 ° C for 2 hours. After stirring, the amount of glycated protein in the supernatant of the reaction solution was measured by the fructosamine test “Roche” II manufactured by Nippon Roche, and the total amount of protein was measured by the protein assay manufactured by BIO-RAD. Using the glycated protein-containing plasma as a control solution and the glycated protein-containing plasma treated with the adsorbents 1 to 5 as a test solution, the glycated protein and total protein adsorption / removal rate was calculated by the following formula (I). The results are shown in Table 2 below. Adsorption removal rate (%) = {(XY) / X} × 100 (I) (In the formula, X represents the glycated protein concentration or the total protein concentration in the control solution, and Y represents the glycated protein concentration in the test solution. Or represents total protein concentration.)

【0023】[0023]

【表2】 [Table 2]

【0024】[0024]

【発明の効果】本発明によれば、糖や糖蛋白質が存在す
る体液中から選択的かつ効率的に糖化蛋白質を吸着除去
することができる。
INDUSTRIAL APPLICABILITY According to the present invention, glycated proteins can be selectively and efficiently adsorbed and removed from a body fluid containing sugars and glycoproteins.

───────────────────────────────────────────────────── フロントページの続き (72)発明者 阿部 泰久 北海道札幌市西区山の手3条9−4−21 (72)発明者 中路 修平 岡山県倉敷市酒津1621番地 株式会社クラ レ内 (72)発明者 岡 樹一郎 岡山県倉敷市酒津1621番地 株式会社クラ レ内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yasuhisa Abe 3-4-9-21 Yamanote, Nishi-ku, Sapporo-shi, Hokkaido (72) Inventor Shuhei Nakaji 1621 Sakata, Kurashiki-shi, Okayama Kuraray Co., Ltd. (72) Inventor Kiichiro Oka 1621 Sakata, Kurashiki City, Okayama Prefecture Kuraray Co., Ltd.

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 ジヒドロキシボリル基を有するモノマー
単位およびアニオン性官能基を有するモノマー単位から
なる共重合体よりなる糖化蛋白質吸着材。
1. A glycated protein adsorbent comprising a copolymer composed of a monomer unit having a dihydroxyboryl group and a monomer unit having an anionic functional group.
【請求項2】 請求項1記載の糖化蛋白質吸着材を体液
と接触させて体液から糖化蛋白質を吸着除去する方法。
2. A method for adsorbing and removing a glycated protein from a body fluid by bringing the glycated protein adsorbent according to claim 1 into contact with the body fluid.
JP7110576A 1995-05-09 1995-05-09 Adsorbent for saccharified protein Pending JPH08299788A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7110576A JPH08299788A (en) 1995-05-09 1995-05-09 Adsorbent for saccharified protein

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7110576A JPH08299788A (en) 1995-05-09 1995-05-09 Adsorbent for saccharified protein

Publications (1)

Publication Number Publication Date
JPH08299788A true JPH08299788A (en) 1996-11-19

Family

ID=14539344

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7110576A Pending JPH08299788A (en) 1995-05-09 1995-05-09 Adsorbent for saccharified protein

Country Status (1)

Country Link
JP (1) JPH08299788A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017102130A (en) * 2011-03-22 2017-06-08 積水メディカル株式会社 Column for liquid chromatography
JP2020532417A (en) * 2017-08-31 2020-11-12 サイトソーベンツ・コーポレーション Reduction of advanced glycation end products from body fluids

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017102130A (en) * 2011-03-22 2017-06-08 積水メディカル株式会社 Column for liquid chromatography
JP2020532417A (en) * 2017-08-31 2020-11-12 サイトソーベンツ・コーポレーション Reduction of advanced glycation end products from body fluids

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