WO2005017194A2 - Verfahren zum nachweis von bakterien der gattung legionella - Google Patents
Verfahren zum nachweis von bakterien der gattung legionella Download PDFInfo
- Publication number
- WO2005017194A2 WO2005017194A2 PCT/DE2004/001821 DE2004001821W WO2005017194A2 WO 2005017194 A2 WO2005017194 A2 WO 2005017194A2 DE 2004001821 W DE2004001821 W DE 2004001821W WO 2005017194 A2 WO2005017194 A2 WO 2005017194A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- detection
- legionella
- probe
- probes
- species
- Prior art date
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Classifications
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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
-
- 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
- the invention relates to a method for the detection of bacteria of the genus Legionella by means of the sandwich hybridization method.
- Legionella spp. are gram-negative, rod-shaped and facultative intracellular pathogens. There are more than 42 species with 64 sero groups.
- Legionella pneumophila is the most important pathogen for legionellosis, but other species of the genus L. can also be considered as pathogens in humans.
- US 5,569,568 A disclosed the use of the sandwich hybridization method. This method is based on the use of two oligonucleotide probes - a capture probe and a detection probe.
- the capture probe is covalently bound to a solid surface.
- the target nucleic acid to be examined hybridizes with the two probes at specific temperatures.
- the target nucleic acid and the probe complex then bind to the solid surface of the capture probe.
- the detection can be done with fluorescence or chemiluminescence, color reactions or radioactive labels. The properties of the are important for the success of this method Probes for the specific hybridization. This is only partially guaranteed by the current state of the art.
- the object of the invention is therefore to produce and use new genus and species-specific oligonucleotides for the detection of bacteria of the genus Legionella.
- the object is achieved in that a) for the detection of the entire genus Legionella, an oligonucleotide of the sequence 5- CCTCCTCCCCACTGAAAGT-3 ' as a capture probe and an oligonucleotide of the sequence 5 ' -CACTGTATGTCAAGGGTAGG as a detection probe; b) for the detection of Legionella pneumophila as a capture probe an oligonucleotide of the sequence 5 ' -ATCTGACCGTCCCAGGTT-3 ' and as a detection probe an oligonucleotide of the sequence 5 ' -TTCGCCGCCCTCTGTATCG-3'; c) for the detection of Legionella feelei as capture probe an oligonucleotide of the sequence 5 '-GCGCCACTAACCTCATTCAT-3' and as a detection probe, an oligonucleotide of the sequence 5 '-TATACAACCACCTACGCACC-3' and d) for the detection of the
- legjor 1 5'-CTTACGGTCCCCAGCI 1 1 1 1-3 'L. 192-211 detection legjor 50 ° C 2 5' -CCACTCCTCCCCACTGAAAG-3 '435-454 scavenger jordanis
- the oligonucleotides for capture probes and detection probes are interchangeable according to claim 2.
- the detection of bacteria of the genus Legionella according to claim 3 is carried out with combinations of oligonucleotides for genus-specific probes and oligonucleotides for species-specific probes.
- Another advantage is that the new genus and species-specific oligonucleotide probes were all developed for hybridization at temperatures of 50-55 ° C. This enables combinations of more than 2 probes, which are the prerequisite for the detection of more than 1 Legionella species in one test.
- magnetic beads are mixed with different capture probes for the detection of individual Legionella species (multiplex analysis), for example capture probes for the detection of L. p. with capture probes for the detection of L. f. or others in combination with a genus-specific detection probe.
- Figure 1 p.8 shows a schematic representation of the sand wipe hybridization method.
- the capture probe 1 is labeled with biotin 4; binds to magnetic beads 7 coated with streptavidin 7.
- detection is carried out with alkaline phosphatase 6 which is attached to the digoxigenin labeled detection probe 2 binds via Anti DIG Fab fragments.
- the detection of the amplified fluorescence signal can be quantified by a fluorescence reader. Another possibility of detection is the detection of the activity of the alkaline phosphatase by electrochemical sensors.
- the 16S ribosomal DNA was amplified from the total DNA of various Legionella species using the fD1 and rP2 universal primers for the 16SrDNA by means of PCR.
- the promoter region of the T7 polymerase was contained in the fD1.
- 166Sr RNA transcribed in vitro was prepared from the corresponding PCR products from Legionella (16SrDN A) using the DIG RNA LabelingKit (SP6 / T7) (Röche) or the MAXIscript-Kit / Ambion.
- oligonucleotide probe was tested by the slot blot method.
- In vitro transcribed 16SrRNA ribosomal of the small subunit of bacterial ribosomes was used as the target molecule.
- the slot blot hybridizations were carried out according to the protocol of the DIG System User 's guide for Filter Hybridiziation, Boehringer Mannheim (1995). 1000 fmol of 16SrRNA of various Legionella species transcribed in vitro were prepared in RNA solution buffer (DEPC-HO, 20xSC, formaldehyde (5: 3: 2) and denatured for 10 minutes at 65 ° C. Then the
- the hybridization then took place overnight in high SDS buffer with 100 pmol DIG-labeled oligonucleotide probe at 50-55 ° C. depending on the melting temperature of the probe.
- the samples were triple at the 3 ' end with the DIG oligonucleotide Labeling kit (Röche Diagnostics GmbH) labeled with digoxigenin according to the manufacturer's protocol.
- the membrane was washed twice with 2x SSC; 0.1% SDS washed for 5 minutes followed by two washes with 0.1 x SSC; 0.1% SDS, 0.2 x SSC; 0.1% SDS or 0.5 x SSC; 0.1% SDS for 20 minutes at hybridization temperature to remove the unbound probe.
- the membrane was then incubated in maleic acid buffer (0.1 M maleic acid and 0.15 M NaCl, pH 7.5) with 0.3% Tween 20 TM for 5 minutes at room temperature in order to avoid non-specific binding of the alkaline phosphatase.
- the membrane was incubated for 30 minutes in maleic acid buffer with 0.1% blocking solution (Röche).
- the anti-digoxigenin-alkaline phosphatase (AP) was then diluted 1: 20,000 in maleic acid buffer with 1% blocking solution and the membrane was incubated in the antibody solution for 30 minutes. The membrane was washed twice with maleic acid buffer with 0.3% Tween 20 for 15 minutes and 1-equilibrated in detection buffer (100 mM Tris-HCl, pH 9.5 and 100 mM NaCl) for 5 minutes.
- detection buffer 100 mM Tris-HCl, pH 9.5 and 100 mM NaCl
- the CDP-Star TM substrate (Röche) used as substrate for the alkaline phosphase was diluted 1: 100 in detection buffer, applied to the surface of the membrane and sealed in plastic film for 10 minutes. The membrane was exposed (Hyperfilm ECL, Amersham Pharmacia Biotech). The time period was first 1 hour and later 10 or 5 minutes to reduce the color of the background.
- the results of the slot blot test 's show the following. 1. Probes for the detection of the genus Legionella The Legall 11 probe hybridizes with the 16 rRNA transcribed in vitro to all examined Legionella species (15 species - see Table 2, p. 9). The binding was specific for all Legionella species. The Legall 22 probe also hybridized specifically with the in vitro transcribed 16SrRNA of all examined Legionella species. Both probes are suitable for detection of the genus Legionella in the sand hybridization detection with Legall 11 as a capture probe and Legall 22 as a detection probe. The hybridization temperature was 50 ° C.
- the Legpneu 1 probe hybridized with the 16SrRNA of Legionella pneumo- phila serogroup 1 ATCC33152, Legionella pneumophila seragroup 6, Legionella pneumophila Philadelphia I R32 WT and with Legionella micdadei.
- the Legpneu 2 probe hybridizes with in vitro transcribed 16S rRNA from Legionella pneumophila Philadelphia f JR32 WT. This probe is highly specific and can be used as a capture probe with the Legneu 1 probe in sandwich hybridization detection.
- the hybridization pe temperature ar50 ° C.
- the Legfeel 1 probe hybridizes only with the in vitro transcribed 16S rRNA from Legionella feelei and is specific. It can be used as a capture probe together with Leggfeel2 to detect Legionella feelei.
- the Legfeeß probe hybridized only with the in vitro transcribed 16S RNA from Legionella feelei and is specific. It can be used as a detection probe because it has a lower binding efficiency than the Legfeell probe. These two Legfeel probes can be used to detect Legionella feelei in sandwich hybridization approaches. The specific hybridization temperature of both probes was 55 ° C.
- the Legjor 2 probe hybridizes with the in vitro transcribed 16S rRNA from Legionella jordanis and Legionella feelei. Binding to the Legionella jordanis sample was specific and binding to the Legionella feelei sample was unspecific.
- This probe can be used as a detection probe together with the Legjorl probe.
- the Legjor 1 probe hybridized only with the in vitro transcribed 16S rRNA from Legionella jordanis. The binding of this probe to the target molecule was specific.
- the probe can be used as a capture probe together with the Legjor2 probe.
- the hybridization temperature for both probes was also 55 ° C.
- the new oligonucleotides are particularly suitable for the sandwich hybridization method in terms of genus and species.
- the use of combinations of the new oligonucleodites also has an advantageous effect.
- Combinations with are also possible other oligonucleotide probes for example for use as primers for PCR, fluorescence-labeled for microscopic detection, for fluorescence sandwich hybridization and for sandwich hybridization with electrical signal reading.
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Organic Chemistry (AREA)
- Zoology (AREA)
- Wood Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Microbiology (AREA)
- Immunology (AREA)
- Molecular Biology (AREA)
- Biotechnology (AREA)
- Biophysics (AREA)
- Physics & Mathematics (AREA)
- Biochemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112004002047T DE112004002047D2 (de) | 2003-08-15 | 2004-08-13 | Verfahren zum Nachweis von Bakterien der Gattung Legionella |
US10/554,238 US20070184437A1 (en) | 2003-08-15 | 2004-08-13 | Method for the detection of legionella-type bacteria |
EP04762665A EP1579014A2 (de) | 2003-08-15 | 2004-08-13 | Verfahren zum nachweis von bakterien der gattung legionella |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10338123.6 | 2003-08-15 | ||
DE2003138123 DE10338123B3 (de) | 2003-08-15 | 2003-08-15 | Verfahren zum Nachweis von Bakterien der Gattung Legionella |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2005017194A2 true WO2005017194A2 (de) | 2005-02-24 |
WO2005017194A3 WO2005017194A3 (de) | 2005-07-21 |
Family
ID=34177691
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2004/001821 WO2005017194A2 (de) | 2003-08-15 | 2004-08-13 | Verfahren zum nachweis von bakterien der gattung legionella |
Country Status (4)
Country | Link |
---|---|
US (1) | US20070184437A1 (de) |
EP (1) | EP1579014A2 (de) |
DE (2) | DE10338123B3 (de) |
WO (1) | WO2005017194A2 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007047912A2 (en) * | 2005-10-17 | 2007-04-26 | Gen-Probe Incorporated | Compositions and methods to detect legionella pneumophila nucleic acid |
WO2007129182A2 (en) * | 2006-05-02 | 2007-11-15 | Université Pierre et Marie Curie | Microorganisms detection and enumeration method |
US8609829B2 (en) | 2005-10-17 | 2013-12-17 | Gen-Probe Incorporated | Compositions and methods to detect Legionella pneumophila nucleic acid |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2202305A4 (de) * | 2007-10-04 | 2011-01-19 | Tosoh Corp | Primer zur rrna-amplifikation eines bakteriums der gattung legionella, nachweisverfahren und nachweis-kit |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0272009A2 (de) * | 1986-11-24 | 1988-06-22 | James John Hogan | Nukleinsäuresonden zum Nachweis und/oder zur Quantifizierung von nicht-viralen Organismen |
WO1993020234A1 (en) * | 1992-03-31 | 1993-10-14 | E.I. Du Pont De Nemours And Company | A rapid, high capacity nucleic acid based assay |
WO1994028174A1 (en) * | 1993-05-24 | 1994-12-08 | Amoco Corporation | Nucleic acid probes for bacteria of the genus legionella |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19515891C2 (de) * | 1995-04-29 | 1999-10-28 | Roche Diagnostics Gmbh | Gattungs- und speziesspezifische Identifizierung von Legionellen |
-
2003
- 2003-08-15 DE DE2003138123 patent/DE10338123B3/de not_active Expired - Fee Related
-
2004
- 2004-08-13 EP EP04762665A patent/EP1579014A2/de not_active Withdrawn
- 2004-08-13 US US10/554,238 patent/US20070184437A1/en not_active Abandoned
- 2004-08-13 DE DE112004002047T patent/DE112004002047D2/de not_active Expired - Fee Related
- 2004-08-13 WO PCT/DE2004/001821 patent/WO2005017194A2/de active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0272009A2 (de) * | 1986-11-24 | 1988-06-22 | James John Hogan | Nukleinsäuresonden zum Nachweis und/oder zur Quantifizierung von nicht-viralen Organismen |
WO1993020234A1 (en) * | 1992-03-31 | 1993-10-14 | E.I. Du Pont De Nemours And Company | A rapid, high capacity nucleic acid based assay |
WO1994028174A1 (en) * | 1993-05-24 | 1994-12-08 | Amoco Corporation | Nucleic acid probes for bacteria of the genus legionella |
Non-Patent Citations (1)
Title |
---|
GRIMM D ET AL: "SPECIFIC DETECTION OF LEGIONELLA PNEUMOPHILIA: CONSTRUCTION OF A NEW 16S RRNA-TARGETED OLIGONUCLEOTIDE PROBE" APPLIED AND ENVIRONMENTAL MICROBIOLOGY, WASHINGTON,DC, US, Bd. 64, Nr. 7, Juli 1998 (1998-07), Seiten 2686-2690, XP001148448 ISSN: 0099-2240 * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007047912A2 (en) * | 2005-10-17 | 2007-04-26 | Gen-Probe Incorporated | Compositions and methods to detect legionella pneumophila nucleic acid |
WO2007047912A3 (en) * | 2005-10-17 | 2007-11-15 | Gen Probe Inc | Compositions and methods to detect legionella pneumophila nucleic acid |
US8609829B2 (en) | 2005-10-17 | 2013-12-17 | Gen-Probe Incorporated | Compositions and methods to detect Legionella pneumophila nucleic acid |
US9845509B2 (en) | 2005-10-17 | 2017-12-19 | Gen-Probe Incorporated | Compositions and methods to detect Legionella pneumophila nucleic acid |
WO2007129182A2 (en) * | 2006-05-02 | 2007-11-15 | Université Pierre et Marie Curie | Microorganisms detection and enumeration method |
WO2007129182A3 (en) * | 2006-05-02 | 2008-08-14 | Univ Paris Curie | Microorganisms detection and enumeration method |
Also Published As
Publication number | Publication date |
---|---|
DE112004002047D2 (de) | 2006-08-10 |
US20070184437A1 (en) | 2007-08-09 |
EP1579014A2 (de) | 2005-09-28 |
WO2005017194A3 (de) | 2005-07-21 |
DE10338123B3 (de) | 2005-07-28 |
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