WO1996006186A2 - FRAGMENTS NUCLEOTIDIQUES CAPABLES DE S'HYBRIDER SPECIFIQUEMENT A L'ADNr ou ARNr DES RICKETTSIA ET LEUR UTILISATION COMME SONDES OU AMORCES - Google Patents
FRAGMENTS NUCLEOTIDIQUES CAPABLES DE S'HYBRIDER SPECIFIQUEMENT A L'ADNr ou ARNr DES RICKETTSIA ET LEUR UTILISATION COMME SONDES OU AMORCES Download PDFInfo
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- WO1996006186A2 WO1996006186A2 PCT/FR1995/001114 FR9501114W WO9606186A2 WO 1996006186 A2 WO1996006186 A2 WO 1996006186A2 FR 9501114 W FR9501114 W FR 9501114W WO 9606186 A2 WO9606186 A2 WO 9606186A2
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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
- C12Q1/6876—Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes
- C12Q1/6888—Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes for detection or identification of organisms
- C12Q1/689—Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes for detection or identification of organisms for bacteria
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Definitions
- Nucleotide fragments capable of specifically hybridizing to the rDNA or rRNA of Rickettsia and their use as probes or primers.
- the present invention relates to the field of techniques for detecting and / or identifying bacteria of the genus Rickettsia and more particularly to those using a genetic marker.
- Rickettsiae are gram negative bacteria which belong to the order of Rickettsiales and to the family of Rickettsiaceae including in particular the subfamily of Rickettsieae sub divided into three genera: Coxiella, of which the only known species is Coxiella burnetti; Rickettsia, grouping all the other pathogenic species for humans and animals; and Rochalimea.
- the genus Rickettsia comprises three subgroups: the typhus group to which R belongs. typhi responsible for endemic typhus, R.
- prowazekii responsible for epidemic typhus and R.
- rickettsii R. siberica, R. conorii, R. australis, R. akari, R. montana and R. rhipicephal ⁇ .
- Rickettsiae are parasitic intracellular bacteria that multiply in the nucleus and cytoplasm of host cells for strains of the eruptive fevers group and in the cytoplasm of these cells for strains of other groups. Transmission of the bacteria to humans takes place via blood-sucking insects such as the tick for R. tsutsugamushi (rickettsia of the group of eruptive fevers), the louse for R. prowazekii or the chip for R. typhi, during a blood meal followed by excrement at the site of the bite. Epidemic typhus due to R. prowazekii characterized by high fever, severe headache, generalized rash has now become a disease rare.
- Murine typhus, or endemic typhus, caused by R. typhi is widespread worldwide.
- the rat is the reservoir and its presence conditions the appearance of the disease in humans.
- the infection is characterized by headache, myalgia and fever, but most often the disease is mild.
- Some of the rickettsial infections associated with the eruptive fevers group can have a fatal outcome for the patient or at least be accompanied by severe complications such as rayocarditis, phlebitis, meningeal syndrome, encephalitis, myelitis and coma.
- Bush typhus is an acute febrile illness with the causative agent R. tsutsugamushi.
- the disease is characterized by a rise in temperature and significant headache, which may be associated with pneumonia during the first week of the disease.
- the disease can damage the central nervous system, with clinical manifestations such as delirium, stupor and muscle fibrillation.
- the mortality rate varies from 1 to 60% depending on the geographic region. It is particularly high in Southeast Asia, Korea, Australia, Japan and India.
- the present invention relates to a technique for diagnosing infections due to bacteria of the genus Rickettsia, and more particularly those due to R. tsutsugamushi, using a genetic marker in a detection method by hybridization of nucleic acids, combining specificity, sensitivity and rapidity.
- the ribosomal RNA of bacteria is used as a target. Indeed, this molecule is found in abundance in all cells of all living organisms. Furthermore, it presents a particular nucleotide sequence made up of a succession of regions characterized by a variable rate of evolution.
- RNA molecules referenced rRNA (s) 5S, 16S and 23S. Historically, these names have been chosen by reference to their sedimentation rate which reflects the size of these RNA molecules. However, the actual size of these ribosomal constituents varies considerably, for a given type, from one cellular organism to another. Nevertheless, the terminology rRNA 5S, 16S and 23S is used to designate the RNA molecules constituting the ribosomes in all bacteria.
- a nucleotide fragment or an oligonucleotide is a sequence of nucleotide patterns assembled together by phosphoric ester bonds, characterized by the informational sequence of natural nucleic acids, capable of hybridizing to a nucleotide fragment under predetermined conditions, the sequence being able to contain monomers of different structures and be obtained from a natural nucleic acid molecule and / or by genetic recombination and / or by chemical synthesis,
- a motif is derived from a monomer which may be a natural nucleotide of nucleic acid, the constituent elements of which are a sugar, a phosphate group and a nitrogenous base; in DNA the sugar is deoxy-2-ribose, in RNA the sugar is ribose; depending on whether it's DNA or RNA, the nitrogen base is chosen from adenine, guanine, uracil, cytosine, thymine; or the monomer is a nucleotide modified in at least one of the three constituent elements; by way of example, the modification may take place either at the base level, with modified bases such as inosine, methyl-5-deoxycytidine, deoxyuridine, dimethylamino-5-deoxyuridine, diamino-2, 6- purine, bromo-5-deoxyuridine or any other modified base capable of hybridization, either at the sugar level, not for example the replacement of at least one deoxyribose by a polyamide (PE Nielsen
- information sequence means any ordered sequence of nucleotide type patterns, the chemical nature and order in a reference direction of which constitute information of the same quality as that of natural nucleic acids,
- hybridization is meant the process during which, under appropriate conditions, two nucleotide fragments, having sufficiently complementary sequences are capable of forming a double strand with stable and specific hydrogen bonds.
- a nucleotide fragment "capable of hybridizing" with a polynucleotide is a fragment which can hybridize with said polynucleotide under hybridization conditions, which can be determined in each case in known manner.
- the hybridization conditions are determined by the stringency, that is to say the rigor of the operating conditions. Hybridization is all the more specific as it is performed at higher stringency. Stringency is defined in particular as a function of the base composition of a probe / target duplex, as well as by the degree of mismatch between two nucleic acids.
- the Stringency can also be a function of the parameters of the reaction, such as the concentration and the type of ionic species present in the hybridization solution, the nature and the concentration of denaturing agents and / or the hybridization temperature.
- the stringency of the conditions under which a hybridization reaction must be carried out will depend mainly on the probes used. All these data are well known and the appropriate conditions can be determined by a person skilled in the art. In general, depending on the length of the probes used, the temperature for the hybridization reaction is between about 20 and 65 ° C, in particular between 35 and 65 ° C in saline at a concentration of about 0.8 to 1M.
- a probe is a nucleotide fragment comprising from 5 to 100 monomers, in particular from 6 to 35 monomers, having a specificity of hybridization under determined conditions to form a hybridization complex with a nucleotide fragment having, in the present case, a nucleotide sequence included in a ribosomal RNA, the DNA obtained by reverse transcription of said ribosomal RNA and the DNA (here called ribosomal DNA or rDNA) of which said ribosomal RNA is the product of transcription; a probe can be used for diagnostic purposes (in particular capture or detection probes) or for therapy purposes,
- a capture probe is immobilized or immobilizable on a solid support by any suitable means, that is to say directly or indirectly, for example by covalence or adsorption,
- a detection probe can be labeled by means of a marker chosen from radioactive isotopes, enzymes (in particular a peroxidase, an alkaline phosphatase, or an enzyme capable of hydrolyzing a chromogenic, fluorigenic or luminescent substrate), chemical compounds chromophores, chromogenic compounds, fluorescent or luminescent, analogs of nucleotide bases, and ligands such as biotin,
- a primer is a probe comprising from 5 to 100 nucleotide units and having a specificity of hybridization under conditions determined for the initiation of an enzymatic polymerization, for example in an amplification technique such as PCR (Polymerase Chain Reaction), in a sequencing process, in a reverse transcription method, etc., - the homology characterizes the degree of similarity of two compared nucleotide fragments,
- the probes and primers according to the invention are those whose sequences are identified below, as well as the analogs of these probes or primers which are those whose sequences have at least 70% homology, and at least 5 nucleotide units of identical information sequence with the latter. Such sequences are here called "homologous sequences”.
- the probes according to the invention used for diagnostic purposes can be used in all known hybridization techniques and in particular point-in-time deposition techniques on a filter called "DOT-BLOT” (MANIATIS et al, Molecular Cloning, Cold Spring Harbor, 1982), DNA transfer techniques called “SOUTHERN BLOT” (SOUTHERN. EM, J. Mol. Biol.,, 503 (1975), RNA transfer techniques called “NORTHERN BLOT", or SANDWICH techniques (DUNN AR, HASSEL JA, Cell, 12, 23 (1977)); in particular the SANDWICH technique is used, with a specific capture probe and / or a specific detection probe, it being understood that the capture probe and the detection probe must have at least partially different nucleotide sequences.
- DOT-BLOT MANIATIS et al, Molecular Cloning, Cold Spring Harbor, 1982
- DNA transfer techniques called "SOUTHERN BLOT” (SOUTHERN. EM, J. Mol. Biol.,, 503 (1975),
- Another application of the invention is a therapy probe for treating infections caused by bacteria of the genus Rickettsia, said probe being capable of hybridizing in vivo to the 16S ribosomal RNA of said bacteria and / or to genomic DNA for block them translation and / or transcription and / or replication phenomena.
- the appended figure represents the rDNA sequences corresponding to the 16S rRNA of various bacteria of the genus Rickettsia, the list of which appears after the experimental part below.
- the subject of the present invention is in particular a single-stranded nucleotide fragment capable of hybridizing with the AD r or the rRNA of Rickettsia and not with the AD r or with the rRNA of non-Rickettsia.
- the single-stranded nucleotide fragment is not capable of specifically hybridizing to the rDNA or rRNA of Cowdria ruminantium, Ehrlichia chaffeensis, Anaplasma marginalale, Wolbachia pipientis, Ehrlichia risticii, Rochalimea quintana and Coxiella burnatti.
- the single-stranded nucleotide fragment of the invention has a nucleotide sequence of at least 5 consecutive nucleotides chosen from the following sequences: starting at nucleotide No. 130 and ending at nucleotide No. 170 starting at nucleotide No. 181 and ending at nucleotide No.
- the invention relates in particular to single-stranded nucleotide fragments having a sequence of at least 8, and in particular of at least 10, consecutive nucleotides chosen from the sequences mentioned above (or from complementary sequences).
- the invention extends to any nucleotide fragment sufficiently homologous to a fragment as defined above to be able to hybridize specifically with the rDNA or rRNA of Rickettsia.
- nucleotide sequences of the fragments of the invention are chosen from the sequences SEQ ID NO 1 to SEQ ID NO 22, described at the end of the description, or their complementary sequences.
- the numbering of the 16S rRNA sequence of R. rickettsii, applied to the sequences SEQ ID NO 1 to SEQ ID NO 22 above, does not always reflect the number of nucleotides or monomers constituting these sequences due to variations in size existing between the sequences and the 16S rRNA sequence of R. rickettsii.
- the variations are due to natural insertions or deletions in the genetic material.
- the fragments of the invention are fragments of DNA, but they can also be single-stranded fragments of RNA, or their complementary fragments, as well as single-stranded fragments of genomic DNA whose products of transcription are the aforementioned RNA fragments, or their complementary fragments.
- the single-stranded nucleotide fragments of the invention can be used in particular as probes, in particular as capture or detection probes, according to known hybridization techniques.
- the specific probes of the Rickettsia genus are in particular those having a sequence chosen from the sequences: starting at nucleotide No. 181 and ending at nucleotide No. 201 starting at nucleotide No. 284 and ending at nucleotide No.
- tsutsugamushi are in particular those having a sequence chosen from the sequences: starting at nucleotide N ° 130 and ending at nucleotide N ° 170 starting at nucleotide N ° 241 and ending at nucleotide N ° 272 starting at nucleotide N ° 299 and ending at nucleotide N ° 315 starting at nucleotide N ° 334 and ending at nucleotide N ° 357 starting at nucleotide N ° 460 and ending at nucleotide N ° 481 starting at nucleotide N ° 504 and ending at nucleotide N ° 536 starting at nucleotide N ° 550 and ending at nucleotide N ° 570 starting at nucleotide N c 661 and ending at nucleotide N ° 684 starting at nucleotide N ° 710 and ending at nucleotide N c 739 starting at nucleot
- Another subject of the invention is a therapy probe for the treatment of infections caused by bacteria of the genus Rickettsia and in particular a therapy probe for the treatment of infections caused by a specific species of Rickettsia, both comprising the following: minus a single-stranded nucleotide fragment as defined above.
- Another subject of the invention is a primer for the specific reverse transcription into a DNA sequence complementary to a 16S ribosomal RNA sequence of Rickettsia belonging either to a region conserved only among the Rickettsia, or to a specific region of the species R.
- tsutsugamushi or a primer, in particular for the specific amplification of a DNA or RNA sequence complementary to or homologous to the 16S ribosomal RNA sequence of the Rickettsia, belonging either to a region region conserved only among the Rickettsia, or to a specific region of species R. Tsutsugamushi.
- a primer comprises or consists of a single-stranded nucleotide fragment as defined above.
- the invention also relates to a reagent for detecting and / or identifying at least one species of Rickettsia in a biological sample comprising at least one probe of the invention, and in particular a capture probe and / or a detection probe responding to the definition of a probe given above.
- the reagent can include a mixture of probes.
- the invention provides a method for detecting and / or identifying at least one Rickettsia species in a biological sample according to which either ribosomal RNA, in particular 16S rRNA, extracted from rickettsiae and possibly denatured, is brought into contact, either the genetic DNA, extracted and denatured, from the bacteria, or else the DNA obtained from the reverse transcription of the 16S ribosomal RNA, with at least one probe of the invention, then any hybridization is detected of said probe, in a manner known per se.
- ribosomal RNA in particular 16S rRNA, extracted from rickettsiae and possibly denatured
- hybridization should be carried out under sufficiently discriminating conditions (stringency) so that the hybridization of at least one of the probes is specific. If desired, before exposing the nucleic acid to the probe of the invention, an amplification of this is carried out. nucleic acid in the presence of a suitable enzymatic system and at least one amplification primer of the invention.
- the invention relates in particular to a method for detecting and / or identifying Rickettsia in a biological sample, characterized in that it comprises: a- bringing said sample into contact with at least one single-stranded nucleotide fragment as defined above above, under predetermined conditions which allow said fragment to hybridize to the rDNA or to the rRNA of a bacteria of the genus Richettsia, if it is present; and b- the detection of said hybrid as an indicator of the presence of Rickettsia in the sample.
- the predetermined hybridization conditions are those which allow specific hybridization.
- the amplification products obtained were purified on magnetic beads marked with streptavidin (Dynabead M-280; Dynal Inc., N.Y.) and sequenced using the technique recommended in the commercial kit "Autoread sequencing kit".
- Hybridization of the ribosomal RNA of a target bacterium was carried out according to the non-radioactive and semi-automated detection method described in French patent n c 90 07249 and modified for the detection of ribosomal RNA by the addition destabilizing.
- This destabilizer (which is a capture probe, starting at nucleotide No. 940 and ending at nucleotide No. 970 of the sequence of R. Tsutsugamuchi (referenced 23 in the appended figure)) and an oligonucleotide-enzyme detection conjugate (1 ' oligonucleotide corresponding to the probe defined at the beginning of this example) are used.
- RNA from Gram-positive bacteria described in "Current Protocols in Molecular Biology" 1987, Ausubel FM et al., Wiley interscience, New York.
- a microtiter plate (Nunc 439454) is deposited a solution of 1 ng / ⁇ l of the capture oligonucleotide whose 5 'end reacted with the reagent Aminolink 2 (Applied Biosystems, Foster city, California) in PBS 3X (0.45 M NaCl 0.15 M sodium phosphate pH 7.0).
- the plate is incubated for 2 h at 37 ° C. and then washed 3 times with 300 ⁇ l of PBST (PBS lx, Tween 20: 0.5 ° / o ⁇ (Merck 822184)).
- PBST PBS lx, Tween 20: 0.5 ° / o ⁇ (Merck 822184)
- the Aminolink 2 reagent makes it possible to add an arm comprising a 6-aminohexyl group to the 5 ′ end of the " probe.
- the probe thus coupled to a ligand having a polar group (primary amine), and passively attached to the support, provides an improved signal; see application FR 91 09057.
- the target consisting of 10 ⁇ l of total RNA extract is mixed with 40 ⁇ l of salmon PBS buffer (PBS-3X + salmon sperm DNA 10 ⁇ g / ml (Sigma D 9156)).
- the whole is added to the well to 50 ⁇ l of a solution of the oligonucleotide-peroxidase conjugate, constituting the detection probe, at a concentration of 0.1 ng / ⁇ l in oligonucleotide in a PBS-horse buffer (PBS 3X + 10% serum horse (BioMérieux 55842)).
- PBS-horse buffer PBS 3X + 10% serum horse (BioMérieux 55842)
- OPD substrate ortho-phenylenediamine Cambridge Medical Biotechnology ref / 456
- a concentration of 4 mg / ml to which 30% hydrogen peroxide diluted 1/1000 is added immediately.
- the enzymatic activity is blocked with 100 ⁇ l of IN sulfuric acid and the reading is carried out on an Axia Microreader device (AXIA: registered trademark) (bioMérieux) at 492 nm.
- AXIA registered trademark
- the capture oligonucleotide is passively attached comprising at its 5 ′ end the ligand Aminolink 2 (Applied Biosyste s-ref. 00808) at a concentration of 1 ng / ⁇ l in a volume of 315 ⁇ l of a 4x PBS solution (200 mM sodium phosphate pH 7.0, 600 mM NaCl). After overnight at room temperature or two hours at 37 ° C., the cones are washed twice with a PBS Tween solution, then dried under vacuum.
- a 4x PBS solution 200 mM sodium phosphate pH 7.0, 600 mM NaCl
- the strip contains in cuvettes the reagents necessary for detection, that is to say: 200 ⁇ l of a solution at 0.1 ng / ⁇ l of the oligonucleotide-alkaline phosphatase detection conjugate, twice 600 ⁇ l of PBS washing solution Tween and a substrate bowl.
- RNA extracted are deposited in the same buffer as for the microplate protocol above. After incubating the cone for 30 minutes with the target mixture plus detection probe, the cone is washed twice with a PBS Tween solution. 250 ⁇ l of MUP substrate (4-methyl umbelliferyl phosphate) in solution in a buffer diethanolamine are aspirated into the cone, then released into a reading bowl. The device measures the fluorescent signal expressed in URF (relative fluorescence units) of the cuvette. The results obtained with this system are the same as those obtained in microplate.
- lixA NAME / KEY DNA lixB LOCATION: 1199-1213 lixC IDENTIFICATION METHOD: by similarity lixD OTHER INFORMATION:
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Abstract
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Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002174753A CA2174753C (fr) | 1994-08-24 | 1995-08-24 | Fragments nucleotidiques capables de s'hybrider specifiquement a l'adnr ou arnr des rickettsia et leur utilisation comme sondes ou amorces |
| EP95928539A EP0724649A1 (fr) | 1994-08-24 | 1995-08-24 | FRAGMENTS NUCLEOTIDIQUES CAPABLES DE S'HYBRIDER SPECIFIQUEMENT A L'ADNr ou ARNr DES RICKETTSIA ET LEUR UTILISATION COMME SONDES OU AMORCES |
| US08/632,470 US5976791A (en) | 1994-08-24 | 1995-08-24 | Nucleotide fragments capable of hybridizing specifically to rickettsia rDNA or rRNA and their use as probes or primers |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR94/10263 | 1994-08-24 | ||
| FR9410263A FR2723950B1 (fr) | 1994-08-24 | 1994-08-24 | Fragments nucleotidiques capables de s'hybrider specifiquemennt a l'adnr ou arnr des rickettsia et leur utilisation comme sondes ou amorces. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO1996006186A2 true WO1996006186A2 (fr) | 1996-02-29 |
| WO1996006186A3 WO1996006186A3 (fr) | 1996-04-04 |
Family
ID=9466474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR1995/001114 WO1996006186A2 (fr) | 1994-08-24 | 1995-08-24 | FRAGMENTS NUCLEOTIDIQUES CAPABLES DE S'HYBRIDER SPECIFIQUEMENT A L'ADNr ou ARNr DES RICKETTSIA ET LEUR UTILISATION COMME SONDES OU AMORCES |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5976791A (fr) |
| EP (1) | EP0724649A1 (fr) |
| CA (1) | CA2174753C (fr) |
| FR (1) | FR2723950B1 (fr) |
| WO (1) | WO1996006186A2 (fr) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030129680A1 (en) * | 2001-10-31 | 2003-07-10 | O'connor Thomas Patrick | Multi-analyte assay device |
| US7183060B2 (en) * | 2005-02-22 | 2007-02-27 | Idexx Laboratories, Inc. | Peptides for detection of antibody to Ehrlichia ewingii |
| US7407770B2 (en) * | 2001-01-18 | 2008-08-05 | Idexx Corporation | Compositions and methods for detection of Ehrlichia canis and Ehrlichia chaffeensis antibodies |
| US20030194756A1 (en) * | 2002-04-12 | 2003-10-16 | O'connor Thomas Patrick | Peptides for detection of antibody to Ehrlichia equi |
| US7087372B2 (en) * | 2001-01-18 | 2006-08-08 | Idexx Laboratories, Inc. | Compositions and methods for detection of Ehrlichia canis and Ehrlichia chaffeensis antibodies |
| FR2831187A1 (fr) * | 2001-10-22 | 2003-04-25 | Univ Aix Marseille Ii | Methode de determination de l'activite bacteriostatique ou bactericide des agents antibiotiques par pcr quantitative |
| GB0218813D0 (en) * | 2002-08-13 | 2002-09-18 | Pharma Mar Sa | DNA sequences from an endosymbiont and their uses |
| KR100692410B1 (ko) | 2005-07-29 | 2007-03-09 | 건국대학교 산학협력단 | 리케차 감염 질환의 감별 진단 방법 |
| KR100657866B1 (ko) * | 2005-07-29 | 2006-12-15 | 건국대학교 산학협력단 | 네스티드 중합효소 연쇄반응을 이용한 홍반열 리케차 균의검출방법 |
| EP1937847A2 (fr) * | 2005-10-17 | 2008-07-02 | Gen-Probe Incorporated | Compositions et procédés destinés à détecter des acides nucléiques de legionella pneumophila |
| US8609829B2 (en) * | 2005-10-17 | 2013-12-17 | Gen-Probe Incorporated | Compositions and methods to detect Legionella pneumophila nucleic acid |
| US7507789B2 (en) | 2007-04-09 | 2009-03-24 | Idexx Laboratories, Inc. | Detection of Anaplasma platys |
| EP2203469A4 (fr) * | 2007-09-21 | 2011-08-24 | Idexx Lab Inc | Procédés et compositions pour la détection d'ehrlichia chaffeensis (p120) |
| MX2010002950A (es) * | 2007-09-21 | 2010-04-01 | Idexx Lab Inc | Metodos y composiciones para deteccion de ehrlichia chaffeensis (vlpt). |
| US8158370B2 (en) | 2007-11-27 | 2012-04-17 | Idexx Laboratories, Inc. | Anaplasma phagocytophilum (Aph) antigens and antibodies specific for Anaplasma |
| EP2335070B1 (fr) * | 2008-10-08 | 2017-12-27 | Idexx Laboratories, Inc. | Compositions et méthodes de détection d' anticorps spécifiques d' anaplasma phagocytophilum (aph) et d' anaplasma platys (apl) |
| US9133525B2 (en) | 2012-01-26 | 2015-09-15 | Luc Montagnier | Detection of DNA sequences as risk factors for HIV infection |
| US9580758B2 (en) | 2013-11-12 | 2017-02-28 | Luc Montagnier | System and method for the detection and treatment of infection by a microbial agent associated with HIV infection |
| WO2019161075A1 (fr) * | 2018-02-15 | 2019-08-22 | The United States Of America As Represented By The Secretary Of The Department Of Health And Human Services | Procédés et compositions pour la détection de rickettsiaceae |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0395731A4 (en) * | 1988-01-11 | 1993-12-01 | Microprobe Corporation | Oligonucleotide probes for detection of periodontal pathogens |
| CA2028012A1 (fr) * | 1989-10-23 | 1991-04-24 | Randall Dimond | Essai d'hybridation de rarn campylobacter |
| JPH0763375B2 (ja) * | 1990-08-15 | 1995-07-12 | 神奈川県 | 恙虫病の遺伝子診断用試薬 |
| ES2125268T3 (es) * | 1991-07-31 | 1999-03-01 | Hoffmann La Roche | Metodos y reactivos para detectar bacterias en liquido cefalorraquideo. |
-
1994
- 1994-08-24 FR FR9410263A patent/FR2723950B1/fr not_active Expired - Fee Related
-
1995
- 1995-08-24 CA CA002174753A patent/CA2174753C/fr not_active Expired - Fee Related
- 1995-08-24 US US08/632,470 patent/US5976791A/en not_active Expired - Fee Related
- 1995-08-24 EP EP95928539A patent/EP0724649A1/fr not_active Withdrawn
- 1995-08-24 WO PCT/FR1995/001114 patent/WO1996006186A2/fr not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| FR2723950B1 (fr) | 1996-10-25 |
| US5976791A (en) | 1999-11-02 |
| CA2174753C (fr) | 2002-11-05 |
| FR2723950A1 (fr) | 1996-03-01 |
| CA2174753A1 (fr) | 1996-02-29 |
| WO1996006186A3 (fr) | 1996-04-04 |
| EP0724649A1 (fr) | 1996-08-07 |
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