WO1994002507A2 - Methods for detecting pre-clinical iddm - Google Patents
Methods for detecting pre-clinical iddm Download PDFInfo
- Publication number
- WO1994002507A2 WO1994002507A2 PCT/CA1993/000304 CA9300304W WO9402507A2 WO 1994002507 A2 WO1994002507 A2 WO 1994002507A2 CA 9300304 W CA9300304 W CA 9300304W WO 9402507 A2 WO9402507 A2 WO 9402507A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lys
- bsa
- antibodies
- fragment
- mammal
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/435—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- C07K14/76—Albumins
- C07K14/765—Serum albumin, e.g. HSA
-
- 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
- G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
- G01N33/564—Immunoassay; Biospecific binding assay; Materials therefor for pre-existing immune complex or autoimmune disease, i.e. systemic lupus erythematosus, rheumatoid arthritis, multiple sclerosis, rheumatoid factors or complement components C1-C9
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2800/00—Detection or diagnosis of diseases
- G01N2800/04—Endocrine or metabolic disorders
- G01N2800/042—Disorders of carbohydrate metabolism, e.g. diabetes, glucose metabolism
Definitions
- This invention relates to methods for detecting autoimmune diseases and pre-clinical autoimmune diseases.
- IDDM insulin dependent diabetes mellitus
- Peptide fragments are provided for use in these methods.
- Figure 1 Serum IgG anti-BSA Antibody Concentrations at Diagnosis of Insulin-Dependent Diabetes in 142
- Figure 1B shows distribution of serum IgA anti-BSA Antibody Concentrations and Figure 1C shows serum IgM anti-BSA Antibody Concentrations, both after normalisation by smoothing.
- FIG. 2 Measurements of total and ABBOS-Specific Anti-BSA Antibodies in 17 Diabetic Patients.
- Panel 2A shows IgG, panel 2B IgA and panel 2C IgM. The hatched bars represent patient anti-BSA levels, the white bars the levels remaining after removal of ABBOS-specific
- the horizontal bar indicates the mean anti-BSA concentrations in 17 normal children (upper line) and the concentrations after removal of anti-ABBOS antibodies in the same sera.
- Figure 3 shows distribution of moderately-(horizontal hatching), highly (diagonal hatching), and very highly elevated (vertical hatching) IgG-anti-bovine serum albumin antibodies in 40 diabetic children as determined by particle concentration fluoroimmunoassay (PCFIA).
- PCFIA particle concentration fluoroimmunoassay
- 3C shows IgG anti-BSA standard curve for enzyme immunoassay (EIA).
- 3E shows IgA anti-BSA standard curve for enzyme immunoassay (EIA).
- 3F shows binding competition with increasing amounts of free ovalbumin/Tween-20 for IgG-( ⁇ ) and IgA-( ⁇ ) anti-BSA antibodies, as well as with increasing amounts of free BSA for IgG-( ⁇ ) and IgA- ( ⁇ ) anti-BSA antibodies.
- KfU kilo fluorescence units.
- Figure 4 Mean levels ( ⁇ SEM) of anti-BSA antibodies in Type 1 diabetic- and matched control children as detected by particle concentration fluoroimmunoassay (PCFIA, Figures 4A and 4B) and enzyme immunoassay (EIA, Figures 4C and 4D). Difference between diabetic and control children: PCFIA:IgG, p ⁇ 0.0001; IgA, p ⁇ 0.001. EIA: IgA, p ⁇ 0.01.
- FIG. 5 Correlation between the levels of anti-BSA antibodies as determined by enzyme immunoassay (EIA) and particle concentration fluoroimmunoassay (PCFIA) in diabetic- and control children. Shaded areas represent BSA-antibody levels considered as "non-elevated”: (vertical band) negative for BSA antibodies by PCFIA, (horizontal band) negative for BSA antibodies by EIA).
- the present inventors were the first to show by a
- a method for detecting IDDM or pre-clinical IDDM by measuring serum antibodies to bovine serum albumin (BSA) by a particle concentration
- PCFIA fluoroimmunoassay
- Particle concentration fluoroimmunoassay detected elevated IgG-anti-bovine serum albumin
- Fluoroimmunoassay for IgG was 100% disease-sensitive (enzyme immunoassay: 25%, p ⁇ 0.0001) and more disease-specific (IgG; p ⁇ 0.02).
- the inventors' findings demonstrate that these assay techniques detected distinct subsets of anti-bovine serum albumin antibodies with little (IgG) or some (IgA) overlap.
- fluoroimmunoassay procedures were 100% disease-sensitive (enzyme immunoassay: 25%, p ⁇ 0.0001) and more disease-specific (IgG; p ⁇ 0.02).
- antigen:antibody binding occurs within 1-2 min while hours are allowed in an enzyme immunoassay. Antibodies with high on-off binding rates typical for immune
- the PCFIA assay described above may be performed using particle-bound BSA-peptides such as particle-bound ABBOS instead of particle-bound BSA.
- the ABBOS peptide can be used to detect up to 90% of IDDM-associated anti-BSA antibodies even when modified at the C-terminus as described in Example 4.
- peptides may be fragments of the natural BSA protein or synthetic peptides prepared by a suitable technique. Such techniques will be known to those skilled in the art and include chemical synthesis and recombinant techniques.
- a method for detecting in IDDM patients and in pre-clinical IDDM subjects sensitised T lymphocytes which specifically recognise and proliferate in response to peptide fragments of BSA, including ABBOS and CS2267. This detection method can be used to detect
- IDDM IDDM
- pre-clinical IDDM IDDM
- a peptide is provided, CS2267, which binds specifically to the sensitised T lymphocytes present in IDDM and pre-clinical IDDM patients.
- immunotoxins can be prepared which are directed to and can destroy the specific T lymphocytes which mediate ⁇ cell destruction in IDDM, providing a means of arresting the disease process.
- ketoacidosis 48 diabetic ketosis only, and the remainder hypoglycemia alone. All were continuously dependent on at least one daily injection of human insulin and had increasing insulin dependence after diagnosis.
- islet cell antibody results are therefore expressed as positive or negative.
- Anti-BSA antibodies were measured by particle concentration fluoro-immuno assay (PCFIA ) as described in Dosch et al, (21).
- test serum dilutions (1:100-1:1,000) were added to microwells containing 20 ⁇ l of 1:20 diluted BSA-coated microspheres (initial 2.5% weight/volume). Up to ten plates were inserted into the Screen-Machine for programmed phase separations, washings and addition (100 ng/well) of affinity purified, custom BSA-free fluorescein-conjugated goat anti-human IgG, IgA, and IgM (Fc-fragment specific, BioCan, Mississauga, Ontario, Canada). Drying and precipitation of serum protein was avoided by short (1 min) incubation, phase separation and washing procedures at low (5mm Hg) vacuum pressure.
- a calibrated pool of serum from diabetic patents was used as the standard in each plate.
- This standard contained 12.3 kilofuorescence Units (KfU) IgG anti-BSA antibodies per microliter, 4.2KfU/ ⁇ l IgA and 4.0 KfU/ ⁇ l IgM anti-BSA antibodies.
- the anti-BSA assays had a sensitivity of 1.0 (IgG, IgA) and 10.0 (IgM) ng/ml, the intraassay-and interassay coefficients of variation were 8.9% and 9.8%, respectively.
- Addition of BSA but not ovalbumin blocked antibody binding in a dose-dependent fashion.
- Anti-BSA antibody concentrations exceeding the mean plus 2 SD in the 79 normal children were defined as elevated.
- Antibody concentrations as expressed as kilofluorescence units per microliter relative to the standard serum pool. The results were analyzed using Chi-square statistics, parametric one-way analysis of variance, and Student's unpaired t-test for normally distributed values. The distribution of anti-BSA concentrations was normal for each isotype. In the case of skewed distribution, the Mann-Whitney-U test and Spearman's rank-correlation test were used(r,) . Anti-BSA antibody concentrations after diagnosis were evaluated using a paired test.
- Anti-BSA Antibodies The serum IgG anti-BSA antibody concentrations in the diabetic patients were considerably higher than those in the normal children ( Figure 1), the mean concentration being almost seven fold higher (Table, 1,P ⁇ 0.001, Table 2). The elevated serum IgG anti-BSA concentrations in the diabetic patients did not reflect generalized immune responses against nutritional antigens, since the patients and the normal children had similar serum concentrations of IgG antibodies to the major cow milk proteins casein and ⁇ -lactoglobulin (Table 1).
- the mean serum concentration of IgA anti-BSA antibodies was higher in the diabetic patients than in the normal children (P ⁇ 0.0001, Table 1), but the values overlapped ( Figure 1). Two thirds of the diabetic patients (and two normal children) had elevated
- the mean serum concentration of IgM anti-BSA antibodies in the diabetic patients were slightly lower than those in the normal children (P ⁇ 0.05, Table 1). Less than 1 percent of patients had elevanted concentrations compared with 8 percent of normal children (P ⁇ 0.01, Table 2, Figure 1).
- IgG-Anti-BSA 8.510.2 (61%) 8.110.3 (27%) 2.2 ⁇ 0.1# (6%) 1.3 ⁇ 0.1 (4%) 1.310.02 (3%)
- IgM-Anti-BSA 3.410.1 (46%) 3.510.1 (20%) 1.3 ⁇ 0.1# (9%) 3.8 ⁇ 0.2 (0%) n.d.
- ABRAS peptide homologous region of rat serum albumin (ABRAS peptide) were synthesized with a C-terminal cysteine residue not present in the natural sequence, and the C-terminal cysteine was biotinylated.
- Solid phase ABBOS and solid phase ABRAS were prepared by binding the biotinylated peptide to streptavidin coupled to carboxylated
- polystyrene microspheres as described by Dosch et al. (1988) above. 20 ⁇ l (0.5% w/v) of ABBOS-or ABRAS- conjugated microspheres were mixed with 3 ⁇ l patient or normal serum in a final volume of 0.3 or 3 ml. After incubation at 4°C for 15 minutes, the mixtures were centrifuged and 20 ⁇ l of the supernatant was used for measurement of residual anti-BSA antibodies.
- Anti-ABBOS Antibodies Measurement of anti-BSA antibodies before (Fig. 2, black bars) and after exposure of serum to solid phase ABBOS peptide (white bars) was done to determine the proporation of anti-BSA antibodies that specifically bound the ABBOS region of BSA.
- IgG anti-BSA antibodies decreased by two-thirds (range 30 to 70%) after reaction of serum with ABBOS peptide.
- a large proportion of the IgA and IgM anti-BSA antibodies 23 to 71%) were ABBOS-specific (Table 3), delineating a severe bias for this short sequence that represents less than two percent of the BSA molecule.
- the amount of anti-BSA antibody removed by incubation of serum with the ABRAS peptide was within normal assay variation (-10%).
- Anti-BSA Antibodies and Disease Markers No relationships were found between the concentration of anti-BSA or anti-ABBOS antibodies and the severity of disease presentation (blood glucose, HbAj, serum C-peptide concentrations), the duration of symptoms before
- Niether anti-BSA concentrations, isotype diversity nor specifity were associated with the presence or absence of islet cell- or insulin autoantibodies.
- HLA-DR3/4 or -Dw3/4 initially had more severe diabetes (higher blood glucose and HbAj and lower serum C-peptide concentrations) than those negative for such haplotype combinations, but the frequencies or concentrations of insulin- and islet cell autoantibodies were similar in both haplotype groups.
- Solid phase ABBOS was also used to assay serum anti-ABBOS antibodies as described above for use of solid phase BSA (BSA coated microspheres). Monoclonal antibodies binding both BSA and
- ABBOS anti-BSA/ABBOS antibodies
- BSA/ABBOS antibodies were generated from Epstein-Barr virus transformed B lymphocytes of a newly diagnosed diabetic patient (24).
- Anti-BSA antibodies in patient and control sera were measured by PCFIA as described in Example 1.
- KfU kilo fluorescence units per microlitre based on instrument gain (5x), serum dilution and assay volume as derived from the standard containing 12,300 KfU/ml IgG- and 4,200 KfU/ml IgA-anti-BSA antibodies.
- the serum samples assayed by PCFIA as described above were also assayed by an enzyme linked immunosorbent technique for anti-BSA antibodies, a conventional three-layer solid phase procedure modified from Tainio et al. (25).
- the method employs polystyrene Microstrip wells (Labsystems, Helsinki, Finland) that are processed in an automatic EIA analyser (Auto-EIA II; Labsystems,
- Serum samples were diluted 1:40 in 0.5%
- gelatin-PBS-NaN 3 prepared in 0.05% Tween-20. Three replicates of 100 ⁇ l of serum dilutions were plated, two in coated wells and one in a non-coated well. After a 60 min incubation at 37°C wells were washed (4x). Diluted alkaline phosphatase conjugated anti-human IgG- or -IgA (cat. no. 67806 and 67808; Orion Diagnostica, Espoo, Finland) was added and incubated for 60 min followed by four washes as before.
- Intra-assay and inter-assay variations of the assay were 9.3% and 15.8%, respectively.
- serial dilutions of a BSA-antibody positive standard were run on each plate (Fig. 3C) and the results expressed as percent binding of the standard serum.
- Sera having an absorbance of 3.9% for IgG and 14.2% for IgA of the standard were considered as positive.
- BSA antibody levels in diabetic children are shown in Figure 4. There was a significant difference in the levels of both IgG-, and IgA-anti-BSA antibodies between diabetic and control children when determined by PCFIA (p ⁇ 0.0001 and P ⁇ 0.001). In contrast, the levels of IgG-anti-BSA EIA antibodies were roughly similar in
- IgA-anti-BSA EIA antibodies were higher in diabetic children, but the difference (p ⁇ 0.01) was less prominent than in PCFIA (p ⁇ 0.001).
- PCFIA EIA P PCFIA EIA IgG 40 a (100%) 10 b (25%) ⁇ 0.0001 4 (2.2%) 18 (10%) ⁇ 0.002
- the BSA molecule consists of 608 amino acids and there are several areas where the sequence differs from human serum albumin. One of those is the described ABBOS (pre-BSA position 153-169 (19)).
- EIA insulin-autoantibodies
- RIA fluid-phase radiobinding assays
- Example 1 The samples in this study were obtained as a subset of the blood samples employed in Example 1 which included over 90% of all families with a newly diagnosed child with IDDM ("INDEX CASE") over a period of several years (the study is still ongoing). Blood samples were taken from siblings of index ceases at the time of diagnosis for the latter and every six-twelve months later. Over 700 families were enrolled and 19 siblings of index cases turned diabetic so far. Our samples represent a subset of 11 of these converters and one hundred siblings which appear healthy (at most 1-2 of these are expected to convert to diabetes). Of all these children there were 1-6 samples available taken at the above interval. Serum IgG anti-BSA antibody levels were measured as described in Example 1.
- Table 6 shows IgG anti-BSA antibody levels present in the very first sample taken from each subject (i.e. when the 'index case' was diagnosed). Diabetes developed in these children 1-5 years later.
- Table 7 shows IgG anti-BSA antibody levels in a random subset of 100 healthy siblings to the index cases.
- Venous blood samples were obtained with informed consent from patients with recent onset IDDM and from healthy controls.
- T lymphocytes were prepared from the blood samples and T cell proliferation in response to BSA and to various synthetic peptide fragments of BSA was assayed as described in Dosch et al . (22), but with substitution of serum free media.
- Synthetic peptides were generated on a Pharmacia peptide synthesiser (Pharmacia LTD, Montreal, Quebec) following the manufacturers' recommendations and purified by conventional HPLC techniques.
- ABBOS ac-Phe-Lys-Ala-Asp-Glu-Lys-Lys-Phe-Trp-Gly-Lys- Tyr-Leu-Tyr-Glu-Ile-Ala-Arg-Arg ⁇ Cys-O-NH 2
- ABBOS alias CS2185: FKADEKKFWGKYLYEIARR
- ABRAS ac-Gln-Glu-Asn-Pro-Thr-Ser-Phe-Leu-Cys-His-Tyr- Leu-His-Glu-Val-Ala-Lys-Lys-NH 2
- CS2240 ac-Ile-Glu-Thr-Met-Arg-Glu-Lys-Val-Leu-Thr ⁇ Cys- O-NH 2 (IETMREKVLT)
- heparinized blood is diluted 1:1 with serum-free HL/1 medium and mononuclear cells are purified on Ficoll-Hypaque gradients, washed in HL/1, counted and 2xl0 5 are added to 96 well microculture plates in a volume of 200 ⁇ l HL/1.
- Control cultures receive either no or a supplement of the pan-T cell mitogen Phytohemagglutinin (1 ⁇ g).
- BSA (0.01-10 ⁇ g) or other test proteins, or 0.1-01g of a synthetic peptide are added to triplicate test cultures. Cultures are incubated for 8-10 days at 37°C in a humidified atmosphere of 5% CO2 in air until pulsed for 6 hrs with 1 ⁇ Ci 3 HTdR.
- a positive response is defined as mean response in unstimulated cells plus 2 SD. All patients but no controls showed a positive response to at least BSA or ABBOS, usually both, and, where tested, to CS 2267, the minimum T cell stimulatory peptide under our conditions. Occasional small responses were seen to CS2268 but not to CS2270 or CS2240.
- IDDM patients were found to have sensitized T lymphocytes which specifically recognize and proliferate in response to peptide CS 2267 while normal controls lacked such sensitized T lymphocytes. Subjects with pre-clinical IDDM as assessed by currently available
- the present inventors Having established the predictive power of anti-ABBOS and anti-BSA immunity, the present inventors have also developed an in vitro system to detect T lymphocytes which initiate and sustain this immunity until final ⁇ cell demise.
- PCFIA particle concentration fluorescence immunoassay
- Diabetes Res. Clin. Pract. 14 (Suppl. 1): 89A.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Immunology (AREA)
- Hematology (AREA)
- Molecular Biology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Medicinal Chemistry (AREA)
- Organic Chemistry (AREA)
- Urology & Nephrology (AREA)
- Biophysics (AREA)
- Microbiology (AREA)
- Genetics & Genomics (AREA)
- Rehabilitation Therapy (AREA)
- Rheumatology (AREA)
- Gastroenterology & Hepatology (AREA)
- Zoology (AREA)
- Biotechnology (AREA)
- Cell Biology (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Toxicology (AREA)
- Food Science & Technology (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Pathology (AREA)
- Peptides Or Proteins (AREA)
- Investigating Or Analysing Biological Materials (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP93917471A EP0652898A1 (en) | 1992-07-28 | 1993-07-28 | Methods for detecting pre-clinical iddm |
AU46932/93A AU4693293A (en) | 1992-07-28 | 1993-07-28 | Methods for detecting pre-clinical iddm |
JP6504052A JPH07509232A (en) | 1992-07-28 | 1993-07-28 | How to detect IDDM before symptoms appear |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA 2074790 CA2074790A1 (en) | 1992-07-28 | 1992-07-28 | Methods for detecting pre-clinical iddm |
CA2,074,790 | 1992-07-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1994002507A2 true WO1994002507A2 (en) | 1994-02-03 |
WO1994002507A3 WO1994002507A3 (en) | 1994-03-17 |
Family
ID=4150211
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CA1993/000304 WO1994002507A2 (en) | 1992-07-28 | 1993-07-28 | Methods for detecting pre-clinical iddm |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0652898A1 (en) |
JP (1) | JPH07509232A (en) |
AU (1) | AU4693293A (en) |
CA (1) | CA2074790A1 (en) |
WO (1) | WO1994002507A2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1995029936A1 (en) * | 1994-05-03 | 1995-11-09 | Hsc Research And Development Limited Partnership | Methods for controlling t lymphocyte mediated immune responses |
FR2740223A1 (en) * | 1995-10-19 | 1997-04-25 | Commissariat Energie Atomique | Determination of auto-antibodies reactive with oxidised human serum albumin |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992003733A1 (en) * | 1990-08-17 | 1992-03-05 | University Of Florida | Methods and compositions for early detection and treatment of insulin dependent diabetes mellitus |
-
1992
- 1992-07-28 CA CA 2074790 patent/CA2074790A1/en not_active Abandoned
-
1993
- 1993-07-28 JP JP6504052A patent/JPH07509232A/en not_active Expired - Lifetime
- 1993-07-28 AU AU46932/93A patent/AU4693293A/en not_active Abandoned
- 1993-07-28 EP EP93917471A patent/EP0652898A1/en not_active Withdrawn
- 1993-07-28 WO PCT/CA1993/000304 patent/WO1994002507A2/en not_active Application Discontinuation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992003733A1 (en) * | 1990-08-17 | 1992-03-05 | University Of Florida | Methods and compositions for early detection and treatment of insulin dependent diabetes mellitus |
Non-Patent Citations (4)
Title |
---|
CHEMICAL ABSTRACTS, vol. 116, no. 23, 8 June 1992, Columbus, Ohio, US; abstract no. 233099, J.M. MARTIN ET AL. 'Milk Proteins in the etiology of insulin-dependent diabetes mellitus (IDDM)' & ANNALS OF MEDICINE vol. 24, no. 4 , 1991 pages 447 - 452 * |
CLINICAL CHEMISTRY vol. 31, no. 9 , September 1985 , WINSTON US pages 1487 - 1490 C. MACCRINDLE ET AL. 'Particle Concentration Fluorescence Immunoassay: A New Immunoassay Technique for Quantification of Human Immunoglobulins in Serum' * |
NEW ENGLAND JOURNAL OF MEDICINE vol. 327, no. 5 , 30 July 1992 , BOSTON, US pages 302 - 307 J. KARJALAINEN ET AL. 'A Bovine Albumin Peptide as a Possible Trigger of Insulin-Dependent Diabetes Mellitus' * |
See also references of EP0652898A1 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1995029936A1 (en) * | 1994-05-03 | 1995-11-09 | Hsc Research And Development Limited Partnership | Methods for controlling t lymphocyte mediated immune responses |
FR2740223A1 (en) * | 1995-10-19 | 1997-04-25 | Commissariat Energie Atomique | Determination of auto-antibodies reactive with oxidised human serum albumin |
Also Published As
Publication number | Publication date |
---|---|
JPH07509232A (en) | 1995-10-12 |
CA2074790A1 (en) | 1994-01-29 |
WO1994002507A3 (en) | 1994-03-17 |
EP0652898A1 (en) | 1995-05-17 |
AU4693293A (en) | 1994-02-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Vaarala et al. | Cow's milk formula feeding induces primary immunization to insulin in infants at genetic risk for type 1 diabetes. | |
Block et al. | Circulating C-peptide immunoreactivity: studies in normals and diabetic patients | |
Yoshimi et al. | Clinical and pathological roles of Ro/SSA autoantibody system | |
Panitch et al. | CSF antibody to myelin basic protein: measurement in patients with multiple sclerosis and subacute sclerosing panencephalitis | |
Sheng et al. | Anti-β2-glycoprotein I autoantibodies from patients with the “antiphospholipid” syndrome bind to β2-glycoprotein I with low affinity: dimerization of β2-glycoprotein I induces a significant increase in anti-β2-glycoprotein I antibody affinity | |
Lindberg et al. | Islet autoantibodies in cord blood from children who developed type I (insulin-dependent) diabetes mellitus before 15 years of age | |
Miao et al. | Role of autoantibodies in type 1 diabetes | |
Elsayed et al. | Evaluation of the allergenicity and antigenicity of bovine‐milk αs1‐casein using extensively purified synthetic peptides | |
Miyazaki et al. | T cell activation and anergy to islet cell antigen in type I diabetes. | |
Bangham et al. | The absorption of 131I-labelled homologous and heterologous serum proteins fed orally to young rats | |
JP2016095312A (en) | Markers for renal disease | |
Rich et al. | Myelin oligodendrocyte glycoprotein‐35–55 peptide induces severe chronic experimental autoimmune encephalomyelitis in HLA‐DR2‐transgenic mice | |
Karjalainen et al. | Disease-associated anti-bovine serum albumin antibodies in type 1 (insulin-dependent) diabetes mellitus are detected by particle concentration fluoroimmunoassay, and not by enzyme linked immunoassay | |
EP0540591A1 (en) | Cell necrosis detection through assays for spectrin and breakdown products thereof. | |
JPH06502916A (en) | How to detect diabetic autoantibodies | |
Rasheed | Hydroxyl radical damaged immunoglobulin G in patients with rheumatoid arthritis: biochemical and immunological studies | |
IE47031B1 (en) | Carrier-bound immunoglobulin fission product and its use in immunologic analyses | |
Park et al. | Humoral autoreactivity to an alternatively spliced variant of ICA512/IA-2 in Type I diabetes | |
TUčKOVÁ et al. | Molecular mimicry as a possible cause of autoimmune reactions in celiac disease? Antibodies to gliadin cross-react with epitopes on enterocytes | |
WO1994002507A2 (en) | Methods for detecting pre-clinical iddm | |
Falholt | Determination of insulin specific IgE in serum of diabetic patients by solid-phase radioimmunoassay | |
Carmel et al. | Congenital transcobalamin II deficiency presenting atypically with a low serum cobalamin level: studies demonstrating the coexistence of a circulating transcobalamin I (R binder) complex | |
Simón et al. | Antinucleosome antibodies may help predict development of systemic lupus erythematosus in patients with primary antiphospholipid syndrome | |
Carr et al. | Antibodies to bovine gamma globulin (BGG) and the occurrence of a BGG-like substance in systemic lupus erythematosus sera | |
Vadeler | Demonstration of Fcγ receptors on human peripheral nerve fibres |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A2 Designated state(s): AT AU BB BG BR BY CA CH CZ DE DK ES FI GB HU JP KP KR KZ LK LU MG MN MW NL NO NZ PL PT RO RU SD SE SK UA US VN |
|
AL | Designated countries for regional patents |
Kind code of ref document: A2 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG |
|
AK | Designated states |
Kind code of ref document: A3 Designated state(s): AT AU BB BG BR BY CA CH CZ DE DK ES FI GB HU JP KP KR KZ LK LU MG MN MW NL NO NZ PL PT RO RU SD SE SK UA US VN |
|
AL | Designated countries for regional patents |
Kind code of ref document: A3 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 1993917471 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 1993917471 Country of ref document: EP |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
ENP | Entry into the national phase in: |
Ref country code: US Ref document number: 1995 379489 Date of ref document: 19950710 Kind code of ref document: A Format of ref document f/p: F |
|
NENP | Non-entry into the national phase in: |
Ref country code: CA |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 1993917471 Country of ref document: EP |