DK2643694T3 - Hurtig in vivo-genmutationsassay baseret på pig-a-genet - Google Patents
Hurtig in vivo-genmutationsassay baseret på pig-a-genet Download PDFInfo
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- DK2643694T3 DK2643694T3 DK11842900.0T DK11842900T DK2643694T3 DK 2643694 T3 DK2643694 T3 DK 2643694T3 DK 11842900 T DK11842900 T DK 11842900T DK 2643694 T3 DK2643694 T3 DK 2643694T3
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- erythrocytes
- reticulocytes
- fluorescent reagent
- gpi anchor
- sample
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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
- C12Q1/68—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving nucleic acids
- C12Q1/6813—Hybridisation assays
- C12Q1/6827—Hybridisation assays for detection of mutation or polymorphism
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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
- G01N33/5002—Partitioning blood components
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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
- G01N33/5005—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving human or animal cells
- G01N33/5008—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving human or animal cells for testing or evaluating the effect of chemical or biological compounds, e.g. drugs, cosmetics
- G01N33/5014—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving human or animal cells for testing or evaluating the effect of chemical or biological compounds, e.g. drugs, cosmetics for testing toxicity
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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
- G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
- G01N33/543—Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals
- G01N33/54313—Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals the carrier being characterised by its particulate form
- G01N33/54326—Magnetic particles
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Immunology (AREA)
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- Biomedical Technology (AREA)
- Hematology (AREA)
- Urology & Nephrology (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- Analytical Chemistry (AREA)
- Microbiology (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Organic Chemistry (AREA)
- Medicinal Chemistry (AREA)
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- Food Science & Technology (AREA)
- General Physics & Mathematics (AREA)
- Pathology (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
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- Wood Science & Technology (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Toxicology (AREA)
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- General Engineering & Computer Science (AREA)
- Genetics & Genomics (AREA)
- Tropical Medicine & Parasitology (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
Claims (8)
- den berigede erytrocytprøve bringes i kontakt med et fluorescerende reagens, som mærker normokromatiske erytrocytter differentielt fra retikulocytter og leukocytter; det fluorescerende reagens exciteres med lys med passende excitationsbølgelængde; den fluorescensemission og lysspredning, som frembringes af det fluorescerende reagens, detekteres, og antallet af erytrocytter og/eller retikulocytter pr. enhed prøvevolumen tælles.
- 10. Fremgangsmåde ifølge krav 8, der endvidere omfatter: tilsætning af optællingsperler til den berigede erytrocytprøve inden adskillelsen; optælling, under detekteringstrinnet, af antallet af optællingsperler; og beregning af et forhold mellem GPI-anker-deficiente erytrocytter og perler og/eller et forhold mellem GPI-anker-deficiente retikulocytter og perler.
- 11. Fremgangsmåde ifølge krav 10, hvor opnåelsen omfatter, at: den berigede erytrocytprøve, der indeholder optællingsperler, bringes i kontakt med et fluorescerende reagens, som mærker normokromatiske erytrocytter differentielt fra retikulocytter og leukocytter; det fluorescerende reagens og optællingsperler exciteres med lys med passende excitationsbølgelængde; den fluorescensemission og lysspredning, som frembringes af det fluorescerende reagens og optællingsperlerne, detekteres, og antallet af erytrocytter og/eller retikulocytter og optællingsperler i prøven tælles; og et forhold mellem erytrocytter og perler og/eller et forhold mellem retikulocytter og perler beregnes.
- 12. Fremgangsmåde ifølge krav 8, der endvidere omfatter: tilvejebringelse af en anden beriget erytrocytprøve, hvor den anden prøve er opnået fra pattedyret inden eksponering for det eksogene agens; udførelse af trinnene med kontakt med det første og det andet fluorescerende reagens, adskillelse, kontakt med det tredje fluorescerende reagens, excitation og detektering på den anden berigede erytrocytprøve; og sammenligning af de resultater, der opnås fra den første og den anden prøve, hvor en statistisk signifikant afvigelse i frekvensen af GPI-anker-deficiente erytrocytter eller retikulocytter mellem den første og den anden prøve viser det genotoksiske potentiale af det eksogene agens.
- 13. Fremgangsmåde ifølge krav 8, hvor det eksogene agens er et kemisk eller fysisk agens, og en statistisk signifikant afvigelse i frekvensen af GPI-anker-deficiente erytrocytter eller retikulocytter fra en basislinjefrekvens for GPI-anker-deficiente erytrocytter eller retikulocytter hos ikke-eksponerede pattedyr eller vehikelkontrolpattedyr viser det genotoksiske potentiale af det eksogene kemiske eller fysiske agens; eller det eksogene agens er et agens, som kan modificere endogent induceret genetisk skade, og en statistisk signifikant afvigelse i frekvensen af GPI-anker-deficiente erytrocytter eller retikulocytter fra en basislinjefrekvens for GPI-anker-deficiente erytrocytter eller retikulocytter viser, at det eksogene agens kan modificere endogen DNA-skade; eller det eksogene agens omfatter et første eksogent agens, der kan modificere eksogent induceret genetisk skade, og et andet eksogent agens, der forårsager genetisk skade, og en statistisk signifikant afvigelse i frekvensen af GPI-anker-deficiente erytrocytter eller retikulocytter for det pattedyr, som har været eksponeret for et genotoksisk stof, i sammenligning med et pattedyr, der kun får det andet eksogene agens, viser, at det første eksogene agens kan modificere eksogent induceret DNA-skade.
- 14. Kit, der omfatter: et første fluorescerende reagens, der binder GPI-anker-udtrykkende celler, men ikke GPI-anker-deficiente celler; et andet fluorescerende reagens, der specifikt binder blodplader; et tredje fluorescerende reagens, der differentielt mærker normokromatiske erytrocytter, retikulocytter og leukocytter, idet det tredje fluorescerende reagens har et fluorescensemissionsspektrum, som ikke i det væsentlige overlapper med fluorescensemissionsspektrene for det første eller det andet fluorescerende reagens; et fjerde reagens, som er egnet til adskillelse af erytrocytter fra blodplader og leukocytter, idet det fjerde reagens omfatter et densitetsgradientmedium; et femte reagens, der omfatter paramagnetiske partikler, idet det femte reagens specifikt binder til GPI-anker-udtrykkende celler eller mindst en del af det første fluorescerende reagens, som er bundet derpå; og instruktioner til anvendelse af reagenserne og celleadskillelsesprodukter og til detektering og beregning af frekvensen af GPI-anker-deficiente erytrocytter og/eller retikulocytter i forhold til samlede erytrocytter og/eller retikulocytter i prøven.
- 15. Kit ifølge krav 14, hvor det første fluorescerende reagens omfatter et anti-CD59-, anti-CD24- eller anti-CD55-antistof eller en kombination deraf; det andet fluorescerende reagens omfatter et anti-CD61 -antistof eller anti-CD42b- antistof eller en kombination deraf; og/eller det tredje fluorescerende reagens er et nukleinsyrefarvestof.
- 16. Kit ifølge et af kravene 14 eller 15, der endvidere omfatter: en søjle, der er egnet til anvendelse med paramagnetiske partikler og magnetiske felter; et computerlæsbart lagermedium, som indeholder en cytometridataregistreringstemplate til rangordning af mutante erytrocytter og mutante retikulocytter ved hjælp af flowcytometri; ét eller flere af balancerede saltopløsninger og en opløsning af antikoagulant; og/eller optællingsperler.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US41710410P | 2010-11-24 | 2010-11-24 | |
PCT/US2011/062125 WO2012071557A1 (en) | 2010-11-24 | 2011-11-23 | Rapid in vivo gene mutation assay based on the pig-a gene |
Publications (1)
Publication Number | Publication Date |
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DK2643694T3 true DK2643694T3 (da) | 2018-04-16 |
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Application Number | Title | Priority Date | Filing Date |
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DK11842900.0T DK2643694T3 (da) | 2010-11-24 | 2011-11-23 | Hurtig in vivo-genmutationsassay baseret på pig-a-genet |
Country Status (5)
Country | Link |
---|---|
US (1) | US9133505B2 (da) |
EP (1) | EP2643694B1 (da) |
CA (1) | CA2820619C (da) |
DK (1) | DK2643694T3 (da) |
WO (1) | WO2012071557A1 (da) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9470694B2 (en) | 2013-03-09 | 2016-10-18 | Litron Laboratories Ltd. | Simplified nuclei analysis platform and biomarker matrix that supports genotoxic mode of action determinations |
CN109628563A (zh) * | 2019-01-02 | 2019-04-16 | 南昌艾迪康医学检验实验室有限公司 | 检测piga基因启动子区域4972a>g突变位点的引物、试剂盒和方法 |
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US4444879A (en) | 1981-01-29 | 1984-04-24 | Science Research Center, Inc. | Immunoassay with article having support film and immunological counterpart of analyte |
US5314805A (en) | 1991-10-28 | 1994-05-24 | Molecular Probes, Inc. | Dual-fluorescence cell viability assay using ethidium homodimer and calcein AM |
US5858667A (en) | 1996-09-06 | 1999-01-12 | Litron Laboratories | Method for the enumeration of micronucleated erythrocyte populations with a single laser flow cytometer |
US6100038A (en) | 1996-09-06 | 2000-08-08 | Litron Laboratories Limited | Method for the enumeration of micronucleated erythrocyte populations with a single laser flow cytometer |
WO1999036778A1 (en) * | 1998-01-20 | 1999-07-22 | University Of Victoria Innovation & Development Corporation | Detection of gpi anchored proteins |
AU760854B2 (en) | 1998-06-22 | 2003-05-22 | Immunomedics Inc. | Use of bi-specific antibodies for pre-targeting diagnosis and therapy |
JP2003520828A (ja) | 2000-01-27 | 2003-07-08 | ジェネティクス インスティテュート,エルエルシー | Ctla4(cd152)に対する抗体、これを含む結合体、およびその使用 |
PT1354034E (pt) | 2000-11-30 | 2008-02-28 | Medarex Inc | Roedores transgénicos transcromossómicos para produção de anticorpos humanos |
PL228041B1 (pl) | 2001-01-05 | 2018-02-28 | Amgen Fremont Inc | Przeciwciało przeciwko receptorowi insulinopodobnego czynnika wzrostu I, zawierajaca go kompozycja farmaceutyczna, sposób jego wytwarzania, zastosowania, linia komórkowa, wyizolowana czasteczka kwasu nukleinowego, wektor, komórka gospodarza oraz zwierze transgeniczne. |
US7358059B2 (en) | 2002-01-09 | 2008-04-15 | Universidad De Salamanca | Simultaneous quantification of PIG-A associated proteins in red cells, platelets and leukocyte subsets using a single measurement |
DK1553832T3 (da) * | 2002-09-27 | 2007-10-01 | Bioe Inc | Præparater og fremgangsmåder til celleseparering |
AU2003290948A1 (en) * | 2002-11-15 | 2004-06-15 | The General Hospital Corporation | Screening methods to identify treatments for autoimmune disease |
US20060140963A1 (en) | 2003-04-14 | 2006-06-29 | Arius Research, Inc. | Cytotoxicity mediation of cells evidencing surface expression of CD59 |
CA2529045A1 (en) | 2003-06-13 | 2004-12-29 | University Of Pittsburgh-Of The Commonwealth System Of Higher Education | Monitoring immunologic, hematologic and inflammatory diseases |
EP1769081B1 (en) | 2004-07-01 | 2016-01-20 | Litron Laboratories Ltd. | Method for enumerating mammalian cell micronuclei with an emphasis on differentially staining micronuclei and the chromatin of dead and dying cells |
US7824874B2 (en) | 2006-05-25 | 2010-11-02 | Litron Laboratories, Ltd. | Method for measuring in vivo mutation frequency at an endogenous gene locus |
US8187826B2 (en) | 2008-06-12 | 2012-05-29 | Litron Laboratories, Ltd. | Quantitative analysis of in vivo mutation at the Pig-A locus |
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2011
- 2011-11-23 EP EP11842900.0A patent/EP2643694B1/en active Active
- 2011-11-23 CA CA2820619A patent/CA2820619C/en active Active
- 2011-11-23 US US13/304,179 patent/US9133505B2/en active Active
- 2011-11-23 WO PCT/US2011/062125 patent/WO2012071557A1/en active Application Filing
- 2011-11-23 DK DK11842900.0T patent/DK2643694T3/da active
Also Published As
Publication number | Publication date |
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CA2820619A1 (en) | 2012-05-31 |
EP2643694B1 (en) | 2018-01-03 |
WO2012071557A1 (en) | 2012-05-31 |
US9133505B2 (en) | 2015-09-15 |
EP2643694A1 (en) | 2013-10-02 |
CA2820619C (en) | 2020-01-07 |
US20120129160A1 (en) | 2012-05-24 |
EP2643694A4 (en) | 2014-04-16 |
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