WO1992016651A1 - (1←3)-β-D-GLUCAN ASSAYING AGENT - Google Patents
(1←3)-β-D-GLUCAN ASSAYING AGENT Download PDFInfo
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- WO1992016651A1 WO1992016651A1 PCT/JP1992/000311 JP9200311W WO9216651A1 WO 1992016651 A1 WO1992016651 A1 WO 1992016651A1 JP 9200311 W JP9200311 W JP 9200311W WO 9216651 A1 WO9216651 A1 WO 9216651A1
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- Prior art keywords
- glucan
- lysate
- endotoxin
- agent
- prepared
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
- C12Q1/34—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving hydrolase
- C12Q1/37—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving hydrolase involving peptidase or proteinase
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/579—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving limulus lysate
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2400/00—Assays, e.g. immunoassays or enzyme assays, involving carbohydrates
- G01N2400/10—Polysaccharides, i.e. having more than five saccharide radicals attached to each other by glycosidic linkages; Derivatives thereof, e.g. ethers, esters
- G01N2400/12—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar
- G01N2400/14—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar alpha-D-Glucans, i.e. having alpha 1,n (n=3,4,6) linkages between saccharide units, e.g. pullulan
- G01N2400/22—Dextran
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2400/00—Assays, e.g. immunoassays or enzyme assays, involving carbohydrates
- G01N2400/10—Polysaccharides, i.e. having more than five saccharide radicals attached to each other by glycosidic linkages; Derivatives thereof, e.g. ethers, esters
- G01N2400/12—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar
- G01N2400/24—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar beta-D-Glucans, i.e. having beta 1,n (n=3,4,6) linkages between saccharide units, e.g. xanthan
Definitions
- the present invention uses a power crab lysate lysate (1).
- Horseshoe Crab Amebosite ⁇ A method for measuring endotoxin using a lysate (hereinafter also simply called a lysate) (generally called limulus test) ) It has been known. This method is based on the coagulation of lysate by trace amounts of endotoxin, but subsequent biochemical elucidation suggests that the reaction may involve some coagulation factors. It has been clarified to consist of gradual activation (Takanori Nakamura et al., Bacteriological Journal of Japan, 3_ _, 781-803 (1983)). This reaction is explained by using a lysate obtained from, for example, the horseshoe crab C Tachypleus tridentatus), as shown in Fig.
- Factor C endotoxin-sensitive factor, molecular weight 123,000
- the generated activated factor C limits the specific location of factor B (molecular weight 64,000) to limited hydrolysis.
- activated factor B is converted to click Lock tee Nguenzai arm activates Proc-Lock tee Ngue Nzai arm (molecular weight 5 4, 000), click Lock Te Engenzyme binds to specific sites within the disulfide-bonded loop of coagulogen (coagulation protein, molecular weight 19, 723), that is, to Arg 18 — T hr 1 a... Between and and between A rg 4 G — G 1 y 4 7 ... Where H— T hr , 0 -A rg ⁇ — 0 H Is a series of reactions (also called cascade reactions) in which the remaining part is converted into coagulin gel while releasing peptide C (amino acid 28 residues).
- this cascade reaction is not limited to endotoxin, but when (1 ⁇ 3)--D-glucan is added to the lysate, the G factor in Fig. 1 is activated and generated.
- Activated factor G activates the proclotting enzyme into the cutting enzyme, and then reacts in the same manner as in endotoxin to form a coagulin gel.
- the clot genzyme produced by the cascade reaction is added separately to the reaction system, for example, t-butoxycarbone, one-port, one-sided, one-sided, one-sided, one-sided, aniline. Since para-nitrolanine is released from the compound (B0c-Leu-Gly-Ar-pNA), the absorbance of the resulting color-forming substance, para-nitroaniline, must be measured. Enables the quantification of endotoxin or (1 ⁇ 3) -D-dalcan. The specific measurement of (1 ⁇ 3) 1 ⁇ — D-glucan in the examples described later is also performed using the above-described cascade reaction.
- the present invention comprises a lysate-treated product substantially free of endotoxin-sensitive factor (Factor C) obtained by an improved method using lysate as a raw material (1).
- Fractor C endotoxin-sensitive factor
- the present invention provides an endotoxin obtained by contacting a solution containing a horseshoe crab, amebosite, and a lysate with an adsorbent that specifically adsorbs an endotoxin-sensitive factor.
- ⁇ -D force containing a component that specifically reacts with glucan at least (1 ⁇ 3), substantially free from glucan susceptibility factors (1 ⁇ 3) — — D — Glucan measuring agent.
- the adsorbent that specifically adsorbs the above-mentioned endotoxin-sensitive factor is preferably a polyamide-based insoluble carrier or a cellulose-based insoluble carrier. Further, it is preferable that the measurement agent contains dextran. Further, the measuring agent preferably contains a divalent metal salt effective for activating the cascade reaction system, or a substrate containing the divalent metal salt and a substrate of quenchingenzyme.
- the present invention also provides a method for contacting an endotoxin-sensitive factor with an adsorbent that specifically adsorbs endotoxin-sensitive factors, thereby bringing an endotoxin Carboxylate lysate containing at least (1 ⁇ 3) at least (1 ⁇ 3) a component that specifically reacts with 1-D-glucan (1 ⁇ 3) 1-D — This is a method for producing glucan measuring agents.
- the liquid containing the horseshoe crab / measite lysate contains dextran.
- the present invention provides a treated product of the crab crab 'amebosite' lysate, which is a divalent metal salt or a divalent metal salt effective for activating a cascade reaction system.
- This is a method for producing (1 ⁇ 3)- ⁇ -1D-glucan, which is characterized by adding a salt of a genus salt and a substrate of clottingenzyme and drying it under non-heating conditions.
- the present invention provides a method for preparing a (1 ⁇ 3) -1 ⁇ -D-glucan by contacting a bodily fluid of a fungal infection patient with the above-mentioned (1 ⁇ 3) -1 ⁇ -D-glucan measuring agent to cause reaction.
- This is a method for detecting a fungus, which is characterized by measuring a change in a substrate in a reaction system.
- the licensing includes Limnoles 'Poly Hems (from Limulus polyph emus Americana), Taquipleus' from Tachypleus tridentatus (Tachypleus tridentatus. Japan, ⁇ domestic), Tachypleus-gigas (Tachyple us gigas. Thailand) From the Malaysian Peninsula), Carcinos scozolepius (Carcinoscorpius rotundicauda. Thailand, from the Malaysian Peninsula), using an appropriate method (eg, J. Biochem) , 80, 1011-1021 (1976) HS).
- the horseshoe crab carbohydrate lysate may be brought into contact with a polyimide or cellulosic insoluble carrier by either a continuous method or a batch method.
- a lysate through a lysate through a column filled with a granular carrier, and a carrier of an appropriate size for example, After bringing the lysate into contact with the chip-like granular or powdery carrier, a method of removing the carrier by ordinary solid-liquid separation means (eg, centrifugal separation, filtration, etc.) is used.
- ordinary solid-liquid separation means eg, centrifugal separation, filtration, etc.
- dextran those having an average molecular weight of from 5,000 to 5,000,000, preferably from 10,000 to 100,000 can be mentioned.
- a dextran having an average molecular weight of less than 5,000 has a weak effect of adsorbing an endotoxin-sensitive factor on a carrier and cannot be used.
- those above 5,000,000 are too viscous to be used.
- the polyamide-based insoluble carrier used in the present invention include membrane-shaped (filter-type, hollow-fiber-type, tube-type, flat-film-type, etc.), granular, chip-like, powder-like, etc.
- the cellulose-based insoluble carrier used in the present invention may be in the form of a membrane (eg, a filter, hollow fiber, tube, flat membrane, etc.), granular, or chip.
- a carrier include cellulose having a form such as glass and powder, and a carrier containing cellulose derivative as a main component.
- Cellulose derivatives include substituents such as cellulose esters (eg, cellulose acetate, cellulose nitrate, etc.), aminoethyl-, bromoacetyl-, phospho-, carboxymethyl and the like. Examples thereof include a cellulose derivative, a hydrazide derivative of carboxymethyl cellulose, and the like.
- glucan as a biological sample for measuring (1 ⁇ 3) — / 3 — D — glucan, blood, plasma, serum, cerebrospinal fluid, ascites, synovial fluid, pleural effusion, milk, urine And other bodily fluids, exudates, excretions, etc.
- the activity of oral gentenzyme may be measured by a known method.
- the amidase activity of Clottingenzyme for example, as a substrate, a peptide synthetic substrate having the above-described chromogenic residue, or a peptide having a similar sequence, A peptide synthesis substrate in which a known fluorogenic residue, luminescent residue, ammonia, or the like is substituted for the carboxyl group of arginine in place of the above-described chromogenic residue by an amide bond can be used. .
- the amidase activity can be measured by measuring the reaction products generated by the action of Clottingenzyme on these synthetic substrates.
- the above-mentioned peptide synthesis substrate is allowed to coexist in a reaction system containing the measuring agent of the present invention and (1-3)-/ S-D-glucan, and the reaction (cascade reaction and, if necessary, The dye, fluorescent substance, or ammonia produced by the conversion reaction of the product into another dye, etc.) is converted into a spectrophotometer, a fluorometer, a chemiluminescence measuring device, and an ammonia detecting electrode (JP-A-6-12-1). 488 650) and the like.
- the Clottingenzyme acts on the coagulogen (substrate) contained (or separately added) in the measuring agent of the present invention.
- the gel-forming reaction during the formation of the angel can be measured by, for example, an appropriate device (for example, a turbidity measuring device, a viscosity measuring device, or the like) or can be visually determined.
- the measuring agent of the present invention can be used for a horseshoe crab, a carbohydrate lysate treatment.
- a solid may be obtained by performing a drying treatment (for example, freeze-drying) under non-heating conditions.
- the measuring agent for measuring the above-mentioned amidase activity preferably contains the above-mentioned peptide synthesis substrate in addition to the divalent metal salt. It may be done.
- the activity of the (1 ⁇ 3) -191D-glucan-sensitive factor is impaired only by bringing the lysate into contact with a polyamide-based or cellulose-based insoluble carrier.
- the endotoxin-sensitive factor in the lysate is adsorbed and removed, and a lysate-treated product that specifically reacts only with (1 ⁇ 3) —— D—glucan is obtained.
- the lysate is brought into contact with the carrier, by mixing lysate with dextran to increase the viscosity of the lysate, the effect of the adsorption and removal can be enhanced.
- Figure 1 shows the endotoxin and the reaction mechanism of (1 ⁇ 3) -yS-D-glucan in horseshoe crab, amebosite and lysate.
- Figure 2 shows the calibration curve for the I-I agent for (1 ⁇ 3) —— D—glucan.
- Figure 3 shows the calibration curve of II-H for (1 ⁇ 3) -S-D-glucan.
- Example 1 500 ml of the blood lysate was centrifuged at 1,500 rpm at 4 V for 10 minutes, and the precipitate (amebosite) in 100 ml of 0.1 ml of i.g. 0 2 M Tris-HCl buffer (PH8.0) was added, and the mixture was homogenized and homogenized with a homogenizer (Polytron RPT10 (trade name), manufactured by Kinematics). After centrifugation at G for 30 minutes, the supernatant and the precipitate were collected. The obtained precipitate was further extracted twice with 60 ml of a buffer solution to finally obtain 200 ml of a lysate.
- a homogenizer Polytron RPT10 (trade name), manufactured by Kinematics
- Agent I is lysed in a mixture of 0.8 M magnesium chloride 2001 and 6 mM Boc-Leu-Gly-Aly-Arg-pNA200 ⁇ 1 (MS mixture). This is an untreated lysate reagent prepared by adding 0a1 and freeze-drying.
- Agent I-B was prepared by adding 1.2 ml of lysate to a nylon membrane filter with a pore size of 0.20 ⁇ m (Nalgen syringe filter (trade name), 25 mm in diameter, The filtrate (pass solution) of 880 ⁇ 1 is added to the MS mixture, and the lysate of the present invention is prepared by freeze-drying. Film treatment license).
- 1.2 ml of the lysate was used as a polyvinylidene fluoride membrane filter with a pore size of 0.22 ⁇ m (Mylex GV (trade name), 25 mm in diameter)
- Mylex GV trade name
- 1.2 ml of the lysate was used as a 0.2 ⁇ m pore diameter polytetrafluoroethylene membrane filter (Mylex FG (trade name), 25 mm diameter) N Millipore Co., Ltd.), add the filtrate (pass-through solution) 8801 to the MS mixture, and freeze-dry it. It is a processed lysate.
- I-E agent was prepared by adding 1.2 ml of lysate to 0.20 m polysulfone membrane finoletter (Acrodisc (trade name), 25 mm in diameter, manufactured by Germany ), The filtrate (passing solution) 8801 is added to the MS mixture, and the mixture is freeze-dried.
- Table 1 shows the results. From these results, it was found that using a lysate that had once passed through a nylon membrane filter, which was a polyamide-based membrane, would not be affected by endotoxin (1 ⁇ 3) ) —;; 8 — D — Glucan can be specifically quantified.
- lysate + DW The same amount of distilled water was added to 40 ml of the raw material lysate prepared in Example 1 (hereinafter, lysate + DW). To 40 ml of the lysate was added the same amount of an aqueous solution of 15% (WV) dextran (molecular weight: 40,000), and the mixture was centrifuged at 3,500 rpm for ⁇ ⁇ 0 min to obtain a supernatant (hereinafter referred to as “la”). Set + DX).
- the I-F agent is an untreated lysate reagent (untreated + DW) prepared by adding 1.76 ml of lysate + DW to an MS mixture and freeze-drying.
- Agent I-G is an untreated lysate reagent containing dextran prepared by adding 76 ml of lysate + Dxl. To the MS mixture and freeze-drying. (No processing + D x).
- the I-I agent is prepared by passing 5.0 ml of lysate + D x through a 0.20 ⁇ m pore-size nylon membrane filter (Nalgene syringe filter). After that, 1.76 ml of the filtrate (flow-through) is added to the MS mixture, and the lysate reagent of the present invention (dextran) containing dextran prepared by freeze-drying is added. Lo film + D x).
- Endotoxin i-i untreated + 0.219 0.412 0.634 untreated + Dx 0.221 0.416 0.639 i-Hfi]: Nia membrane + DW 0.336 0.046 0.384 D-1 agent: Nia membrane + DX 0.510 0.001 0.510
- Agent I-J is an untreated lysate reagent containing dextran prepared by adding 1.76 ml of D-lysate to the MS mixture and freeze-drying (untreated + D x).
- the lysate that has passed through the nylon membrane which is a polyamide-based membrane, does not react with endotoxin, but only with (1 ⁇ 3) 1 ⁇ 1 D-glucan. It is clear. In addition, if dextran coexists in the lysate and then processed, the sensitivity to (1 ⁇ 3) -1; S—D—glucan can be significantly increased.
- the desired (1 ⁇ 3)-; S-D-glucan measuring agent was easily prepared as follows.
- the I-L solution was prepared by dissolving a Limulus test reagent (Pregel® (trade name), Lot. AB-01, sold by Seikagaku Corporation) in 2.6 ml of distilled water for injection, and then having a pore size of 0.2.
- the solution was passed through a 0- ⁇ m nylon membrane filter (tissue culture filter unit TC (trade name), 47 mm in diameter, Naldi Co., Ltd.), and the filtrate (pass-through solution) was used.
- It is a lysate reagent of the present invention (a nylon membrane + DW).
- the I-M agent is untreated pregel-M (untreated + D W).
- Limulus Test Reagent (Rimulus HS II-Test Co., Ltd., trade name, Lot. EMM090, sold by Wako Pure Chemical Industries, Ltd.) is dissolved in 5.0 ml of distilled water for injection. After passing through a nylon membrane filter (tissue culture filter unit TC), the filtrate (pass solution) 2.6 ⁇ It is the lysate reagent of the invention (Nitrogen membrane treatment + DW).
- the I-0 agent is untreated Limulus H S II-test (untreated + D W).
- I solution and I solution were dissolved in 2.6 ml and I-0 solution in 5.0 ml.
- 0.1 ml of I-I to I-I-10 drug in distilled water for injection (blank), endotoxin (from E. coli 0111: B4) and (1 ⁇ 3) -6-D-glucan was added separately, and the mixture was left standing and heated at 37 ° C for 60 minutes to examine the presence or absence of gel formation.
- the results are shown in Table 4. In the table, + indicates that a gel was formed, and one did not. It represents this.
- Table 4 As can be seen, the I-L and I-N agents are suitable lysates for the purpose of reacting only with (1 ⁇ 3)-/ 5-D-glucan. Power.
- I-N agent nylon film + EW
- D-glucan is also known as a constituent polysaccharide of the fungal cell wall. (1 ⁇ 3) — ⁇ Can be detected. Examples of detection of fungi by the method of the present invention are described below in Examples 5 to 7.
- Heparin was aseptically collected from 1 patient with suspected fungal sepsis due to suspected fungal septicemia (acute lymphoid leukemia, acute myeloid leukemia, multiple myeloma, etc.) The added plasma was used as a sample, and centrifuged at 150 XG for 10 minutes at 4 to obtain platelet-rich plasma. That Add 0.2 ml of 0.32 perchloric acid to 0.1 ml, heat at 37 ° C for 20 minutes, remove the precipitate by centrifugation (3,000 rpm, 10 minutes) and remove the precipitate. 0.05 ml of 0.18 MNaH was added to 0.05 ml of the supernatant, neutralized, and used as a test solution.
- the (1 ⁇ 3)-/ 3-D-glucan measuring agent (I-I agent) of the present invention prepared by the method described in Example 2 and add at 37 ° C for 30 minutes.
- the reaction was performed by heating.
- the reaction mixture contained 0.04% sodium nitrite (0.48 M hydrochloric acid solution), 0.3% ammonium sulfamate, and 0.07% N-1 naphthylethyl.
- a diazocat-priming reaction was carried out by sequentially adding 0.5 ml of each of diamine dihydrochloride, the absorbance was measured at 545 nro, and the absorbance was measured using a separately prepared calibration curve (Fig. 2).
- the measuring agent of the present invention is suitably used for the rapid diagnosis of fungal infections, especially for deep fungal infections, which are extremely difficult to diagnose by ordinary testing methods.
- Table 5 Concentrations of opportunistic deep mycosis in plasma (1 ⁇ 3) -D-glucan
- ALL Acute lymphocytic leukemia
- AML Acute myeloid leukemia
- a PML Acute promyelocytic leukemia
- AI HA Autoimmune hemolytic anemia
- Cryptococcus neoformans (Cryptococcus neof ormans) was detected in the cerebrospinal fluid.
- 0.05 ml of distilled water for injection was added to 0.05 ml of cerebrospinal fluid aseptically collected by lumbar puncture, and the (1 ⁇ 3) one of the present invention described in Example 3 was added.
- 0.1 ml of S—D—glucan measuring agent (I agent) was added, and the mixture was heated for 30 minutes at 37 ° C.
- the I-I agent is an untreated lysate reagent (untreated) prepared by adding lysate 880a1 to the MS mixture and freeze-drying.
- the II-C agent was prepared by adding 1.5 ml of lysate to a cellulose acetate membrane filter with a pore size of 0.20 ⁇ m (Nalgen Fluororewear) (trade name). mm. Nargi Co., Ltd.), add the filtrate (passing solution) 880 aI to the MS mixture, and freeze-dry to prepare the lysate reagent of the present invention (cellulose). Acetate film).
- the II-D agent is prepared by dissolving 1.5 ml of lysate in a cellulose nitrate membrane filter with a pore size of 0.20 m (Nalgen Fluorineware (trade name), 47 mm in diameter). (Narge Co., Ltd.), and then add 880 u1 of the filtrate (passed solution) to the MS mixture, and freeze-dry to prepare the lysate reagent of the present invention (cellulose concentrate). Rate film).
- Table 8 shows the results. From these results, it is possible to specifically quantify (1 ⁇ 3) -1D-glucan without being affected by endotoxin by using a lysate once passed through a cellulosic membrane. You can see. Reactivity (AA545nm 30min) Reagent pore size
- Example 2 Using the lysate + DW prepared in Example 2, six kinds of reagents were prepared by the following method, and the endotoxin and (1 ⁇ 3) - ⁇ -page The reactivity to Lucan was compared.
- lysate II- ⁇ is an untreated lysate reagent (lysate) prepared by adding 1.76 ml of lysate + DW to the MS mixture and freeze-drying. + DW).
- Agent II-F is an untreated lysate containing dextran prepared by adding lysate + 1.76 ml of DX to the MS mixture and freeze-drying. Reagent (lysate + Dx).
- the II-G agent is prepared by adding 5 ml of lysate + 5 ml of DW After passing through an ester filter (Myrex GS (trade name), a mixture of cellulose acetate cellulose and cellulose nitrate, diameter 25 nim, manufactured by Millipore), the filtrate ( This is the lysate reagent of the present invention (cell-mouth monoester membrane + DW) prepared by adding 1.76 ml to the MS mixture and freeze-drying.
- Myrex GS trade name
- a mixture of cellulose acetate cellulose and cellulose nitrate, diameter 25 nim, manufactured by Millipore the filtrate
- This is the lysate reagent of the present invention (cell-mouth monoester membrane + DW) prepared by adding 1.76 ml to the MS mixture and freeze-drying.
- the II-H agent is prepared by passing 5 ml of lysate + D x 5 ml through a cell opening with a pore size of 0.22 m and a ester membrane filter (Mylex GS). 1.76 ml of the lysate reagent of the present invention containing dextran prepared by adding 176 ml to the MS mixture and freeze-drying (cell-ester membrane + Dx) .
- Agent II-I was prepared by adding 5 ml of lysate + DW to a cellulose acetate membrane filter with a pore size of 0.20 ⁇ m (Nalgen syringe filter (trade name), 25 mm in diameter, Narge) Of the filtrate (pass solution) (76 ml), added to the MS mixture, and lyophilized to prepare the lysate reagent of the present invention (cellulose acetate membrane + DW).
- the II-J agent is prepared by passing 5 ml of lysate + Dx through a cellulose acetate membrane filter with a pore size of 0.20 (Nalgen syringe filter), and then filtering the filtrate. (Permeate) 1. Add 76 ml to the MS mixture, freeze-dry, and use the lysate reagent of the present invention (cellulose acetate membrane + Dx) containing dextran prepared. is there.
- II-K is an untreated lysate prepared by adding 1.76 ml of D-lysate to an MS mixture and freeze-drying.
- a lysate reagent (cellulose gel) of the present invention prepared by adding 76 ml to the MS mixture and freeze-drying.
- the II-M agent was prepared by mixing 2.6 ml of D-lysate with the same amount of getylamino phenolic ethanol (DEAE senole mouth, manufactured by Serva Feinbiochemica GmbH) and then filtering through a glass finetter (G3). Then, 1.76 ml of the filtrate is added to the MS mixture, and the lysate is a lysing reagent (getylaminoethylcellulose gel) of the present invention prepared by freeze-drying.
- a lysate reagent (phosphocellulose gel) of the present invention prepared by adding 1.76 ml of the solution to the MS mixture and freeze-drying.
- the desired (1-3) — ⁇ — D-glucan measuring agent was prepared as follows.
- I-A-L-1 was prepared by dissolving a Limulustest reagent (Pregel-II (trade name, sold by Seikagaku Corporation), Lot AB-01) in 2.6 ⁇ of distilled water for injection, and then adding The lysate of the present invention prepared by freeze-drying 1.4 ml of the filtrate (pass-through liquid) through a 0.22 m cellulose acetate membrane finalizer (Nalgen finalizer).
- Pregel-II (trade name, sold by Seikagaku Corporation), Lot AB-01)
- the lysate of the present invention prepared by freeze-drying 1.4 ml of the filtrate (pass-through liquid) through a 0.22 m cellulose acetate membrane finalizer (Nalgen finalizer).
- the II-L-T-2 agent is untreated pregel-M.
- the II-III-L agent was prepared by adding Limulus Test Reagent (available from Wako Pure Chemical Industries, Ltd., Limulus HS II-Test Co., Ltd. Lot. EMM090) to 5.0 ml of distilled water for injection. After dissolution, the lysate is passed through a cellulose ester membrane filter of 0.22 jcim (Sterilfil D-GS), and the lysate of the present invention using the filtrate. .
- Limulus Test Reagent available from Wako Pure Chemical Industries, Ltd., Limulus HS II-Test Co., Ltd. Lot. EMM090
- the II-L-4 agent is untreated Limulus H S II-test. Using distilled water for injection, I-A L-1 drug is 1.4 ml, II-L L-2 drug is
- Endotoxin 0 0.001 0.01 0.1 10 l, 000ng / ml
- a test solution was prepared in the same manner as in Example 5, and subsequently, the (1 ⁇ 3) -— D-glucan measuring agent (II-H agent) of the present invention prepared by the method described in Example 9 0 ⁇ 1 ml was added and heated at 37 ° C for 30 minutes to react.
- the reaction solution was treated in the same manner as in Example 5, the absorbance was measured, and expressed as (1 ⁇ 3) — ⁇ 1D—glucan conversion value from a separately prepared calibration curve (FIG. 3). .
- Table 12 in all cases (NO. 1 to No. 11), 3 ⁇ 4 concentration (1—3) — ⁇ -1D—glucan was detected (in healthy subjects).
- ALL Acute lymphocytic leukemia
- AML Acute myeloid leukemia
- a PML Acute promyelocytic leukemia
- MM Multiple myeloma
- AIHA Autoimmune hemolytic anemia
- a test solution was prepared from urine of a urinary tract infection patient in the same manner as in Example 6, and subsequently, the (1 ⁇ 3) - ⁇ -D-glucan measuring agent ( ⁇ ⁇ ⁇ ) according to the method of the present invention described in Example 8 was used.
- (I-C agent) 0.1 ml was added and heated at 37 ° C for 30 minutes. After the diazo coupling reaction was performed in the same manner as in Example 5, the absorbance of the solution was measured at 545 nm, and the value was converted to (1-3) -1-D-glucan from a calibration curve prepared separately. Expressed.
- a test solution was prepared from the cerebrospinal fluid of a meningitis patient in the same manner as in Example 7, and then the (1 ⁇ 3) - ⁇ -D-glucan measuring agent (1 ⁇ 3) according to the method of the present invention described in Example 10 was used.
- (II-L agent) 0.1 ml was added, and the mixture was heated at 37 ° C for 30 minutes. After the diazo coupling reaction was carried out in the same manner as in Example 5, the absorbance of the solution was measured at 545 nm, and from the calibration curve prepared separately ( 1 ⁇ 3) One yS — D — Glucan equivalent.
- the present invention relates to a method for specifically measuring (1-3) -5-D-glucan using a lysate, which does not contain an endoxin-sensitive factor, and a measuring method using the same. It is possible to measure (1 ⁇ 3) - ⁇ -p-glucan derived from fungi in biological samples such as blood and urine quickly, simply and with high accuracy. It is possible. It can be used for rapid diagnosis of deep fungal infections, which are difficult to diagnose with a normal test method such as a bacterial culture method, and for appropriate treatment methods and determination of therapeutic effects.
- the measuring agent of the present invention is capable of rapidly and accurately measuring (1-3)-; S-D-glucan derived from fungi contaminated in distilled water for injection, injections, and medical devices. It can also be used for screening of (3) -D-glucan, which has antitumor activity (1 ⁇ 3).
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- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Pathology (AREA)
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Investigating Or Analysing Biological Materials (AREA)
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002082962A CA2082962C (en) | 1991-03-14 | 1992-03-13 | Reagent for determining (1+3)-.beta.-d-glucan |
DE69221879T DE69221879T2 (de) | 1991-03-14 | 1992-03-13 | Reagenz zur bestimmung von (1-3)-beta-glucan |
AU15442/92A AU658408B2 (en) | 1991-03-14 | 1992-03-13 | (1-3)-beta -D-glucan assaying agent |
EP92906698A EP0598903B1 (en) | 1991-03-14 | 1992-03-13 | (1-3)-beta-d-glucan assaying agent |
FI925149A FI101979B1 (fi) | 1991-03-14 | 1992-11-12 | Reagenssi (1 3)- -D-glukaanin määrittämiseksi |
NO924382A NO303179B1 (no) | 1991-03-14 | 1992-11-13 | Reagens for bestemmelse av (1-3)-<beta>-D-glukan, en fremgangsmÕte for fremstilling derav samt dets anvendelse |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP03073651A JP3088120B2 (ja) | 1991-03-14 | 1991-03-14 | (1→3)−β−D−グルカン測定剤 |
JP3/73652 | 1991-03-14 | ||
JP3/73651 | 1991-03-14 | ||
JP3073652A JP3040184B2 (ja) | 1991-03-14 | 1991-03-14 | (1→3)−β−D−グルカン用測定剤 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1992016651A1 true WO1992016651A1 (en) | 1992-10-01 |
Family
ID=26414792
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1992/000311 WO1992016651A1 (en) | 1991-03-14 | 1992-03-13 | (1←3)-β-D-GLUCAN ASSAYING AGENT |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0598903B1 (ja) |
AT (1) | ATE157403T1 (ja) |
AU (1) | AU658408B2 (ja) |
CA (1) | CA2082962C (ja) |
DE (1) | DE69221879T2 (ja) |
DK (1) | DK0598903T3 (ja) |
FI (1) | FI101979B1 (ja) |
NO (1) | NO303179B1 (ja) |
WO (1) | WO1992016651A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5550030A (en) * | 1992-09-14 | 1996-08-27 | Seikagaku Kogyo Kabushiki Kaisha (Seikagaku Corporation) | Reagent for endotoxin-specific assay |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6156519A (en) * | 1994-09-01 | 2000-12-05 | Seikagaku Corporation | (→)-β- d-glucan binding protein, an antibody recognizing the protein and use thereof |
US6110692A (en) | 1996-05-01 | 2000-08-29 | The Collaborative Group, Ltd. | Receptor for underivatized aqueous soluble β(1-3)-glucan |
US6084092A (en) | 1997-01-31 | 2000-07-04 | The Collaborative Group, Ltd. | β(1-3)-glucan diagnostic assays |
US6413715B2 (en) | 1997-01-31 | 2002-07-02 | The Collaborative Group | β(1-3)-glucan diagnostic assays |
JP4346844B2 (ja) * | 2001-11-16 | 2009-10-21 | 生化学工業株式会社 | (1→3)−β−D−グルカン結合ドメインタンパク質、該物質を使用した測定法及び測定キット |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1328074C (en) * | 1988-09-01 | 1994-03-29 | Shigenori Tanaka | Horseshoe crab amebocyte lysate factor g inhibitor |
JP2564632B2 (ja) * | 1988-11-21 | 1996-12-18 | マルハ株式会社 | β−グルカン類に対する特異性の高いアメボサイト・ライセート及びその製造方法 |
JP2854872B2 (ja) * | 1989-02-02 | 1999-02-10 | マルハ株式会社 | カブトガニ血球膜由来抗菌性ペプタイドをリガンドとする不溶性担体 |
JP2944709B2 (ja) * | 1990-06-21 | 1999-09-06 | 生化学工業株式会社 | (1→3)―β―D―グルカンの測定剤 |
JP2560139B2 (ja) * | 1990-07-19 | 1996-12-04 | マルハ株式会社 | βーグルカン類に対する特異性の高いアメボサイト・ライセート及びその製造方法 |
WO1992020715A1 (en) * | 1991-05-16 | 1992-11-26 | Associates Of Cape Cod, Inc. | Endotoxin binding and neutralizing protein and uses thereof |
-
1992
- 1992-03-13 EP EP92906698A patent/EP0598903B1/en not_active Expired - Lifetime
- 1992-03-13 AU AU15442/92A patent/AU658408B2/en not_active Expired
- 1992-03-13 DK DK92906698.3T patent/DK0598903T3/da active
- 1992-03-13 AT AT92906698T patent/ATE157403T1/de not_active IP Right Cessation
- 1992-03-13 CA CA002082962A patent/CA2082962C/en not_active Expired - Lifetime
- 1992-03-13 DE DE69221879T patent/DE69221879T2/de not_active Expired - Lifetime
- 1992-03-13 WO PCT/JP1992/000311 patent/WO1992016651A1/ja active IP Right Grant
- 1992-11-12 FI FI925149A patent/FI101979B1/fi not_active IP Right Cessation
- 1992-11-13 NO NO924382A patent/NO303179B1/no unknown
Non-Patent Citations (3)
Title |
---|
Clin. Chim. Acta, Vol. 149, No. 1 (1985), T. OBAYASHI et al., "A new chromogenic endotoxin-specific assay using recombined Limulus coagulation enzymes and its clinical applications", p. 55-66. * |
Clinical Examination, Vol. 35, No. 8 (1991), TAMINORI OBAYASHI, "Examination of deep mycosis whose indicator is (1-3)-beta-D-glucan", p. 852-853. * |
Clinical Pathology, Vol. 33, No. 6 (1985), TAMINORI OBAYASHI et al., "Development of a new colorimetry particular to endotoxin", p. 639-644. * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5550030A (en) * | 1992-09-14 | 1996-08-27 | Seikagaku Kogyo Kabushiki Kaisha (Seikagaku Corporation) | Reagent for endotoxin-specific assay |
Also Published As
Publication number | Publication date |
---|---|
DE69221879D1 (de) | 1997-10-02 |
FI925149A0 (fi) | 1992-11-12 |
EP0598903A4 (en) | 1993-02-05 |
EP0598903A1 (en) | 1994-06-01 |
AU1544292A (en) | 1992-10-21 |
FI101979B (fi) | 1998-09-30 |
FI101979B1 (fi) | 1998-09-30 |
FI925149A (fi) | 1992-11-12 |
NO924382D0 (no) | 1992-11-13 |
DE69221879T2 (de) | 1998-01-29 |
CA2082962C (en) | 2002-04-23 |
DK0598903T3 (da) | 1998-03-02 |
EP0598903B1 (en) | 1997-08-27 |
CA2082962A1 (en) | 1992-09-15 |
NO924382L (no) | 1992-11-13 |
AU658408B2 (en) | 1995-04-13 |
ATE157403T1 (de) | 1997-09-15 |
NO303179B1 (no) | 1998-06-08 |
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