WO2023042714A1 - 子宮内膜症を診断するためにフソバクテリウム属細菌を検出する方法 - Google Patents
子宮内膜症を診断するためにフソバクテリウム属細菌を検出する方法 Download PDFInfo
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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
- C12Q1/02—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving viable microorganisms
- C12Q1/04—Determining presence or kind of microorganism; Use of selective media for testing antibiotics or bacteriocides; Compositions containing a chemical indicator therefor
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P15/00—Drugs for genital or sexual disorders; Contraceptives
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
- A61P31/04—Antibacterial agents
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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
- G01N33/569—Immunoassay; Biospecific binding assay; Materials therefor for microorganisms, e.g. protozoa, bacteria, viruses
- G01N33/56911—Bacteria
Definitions
- the present invention relates to a method for detecting Fusobacterium for diagnosing endometriosis, a therapeutic drug for endometriosis, and a method for treating endometriosis.
- Endometriosis is a disease in which endometrial tissue proliferates in parts of the body other than the uterus (ovaries, peritoneum, etc.). Endometriosis is a disease that causes chronic pelvic pain, infertility, canceration, etc., and significantly impairs the quality of life (QOL) of women throughout their lives.
- QOL quality of life
- Non-Patent Documents 1 and 2 suggest a relationship between Gram-negative bacteria and endometriosis, no specific causative bacteria have been identified.
- the purpose of the present invention is to enable diagnosis of endometriosis by detecting causative bacteria of endometriosis.
- the present invention has the following aspects.
- a step of detecting Fusobacterium in a sample collected from a subject wherein the detection of the presence of Fusobacterium in the sample indicates that the subject has or is likely to have endometriosis.
- a method for detecting Fusobacterium spp. for diagnosing endometriosis, which is indicative of high sexuality.
- the Fusobacterium bacterium may be Fusobacterium nucleatum.
- the sample may be blood, plasma, serum, urine, endometrial cells, vaginal swab, or menstrual blood.
- a therapeutic agent for endometriosis containing an antibacterial agent against Fusobacterium as an active ingredient.
- a method for treating endometriosis which comprises the step of administering an antibacterial agent to a subject whose endometrium is infected with Fusobacterium spp.
- the step of detecting Fusobacterium in a sample collected from a subject and confirming whether or not the endometrium of the subject is infected with Fusobacterium may be performed before the step of administering the antibacterial agent.
- Administration of antibiotics may be vaginal.
- the present invention further has the following aspects.
- endometriosis it is possible to easily diagnose endometriosis by detecting causative bacteria of endometriosis. Since even minute amounts of bacteria can be detected, it can be expected to detect early stages of endometriosis that cannot be detected by diagnostic imaging. Moreover, according to the present invention, endometriosis can be treated by sterilizing causative bacteria of endometriosis or suppressing their proliferation. Such treatment can be expected to be effective in preventing the recurrence of endometriosis.
- FIG. 1 shows the proportion of Fusobacterium 16S rRNA in total 16S rRNA in normal human endometrial tissue and endometrial tissue of endometriosis patients.
- FIG. 2 shows FISH images of normal human endometrial tissue and endometriosis patient endometrial and ovarian tissue using EUB338, FUSO, and FUS664 as probes.
- FIG. 3A shows endometriotic lesions in mice inoculated intraperitoneally with bacterially infected endometrium.
- FIG. 3B shows the number of lesions and
- FIG. 3C shows the total weight of lesions.
- FIG. 3 shows FISH images of endometriotic lesions in mice inoculated intraperitoneally with bacterially infected endometrium using EUB338 and FUSO as probes.
- FIG. 5(A) shows endometriotic lesions in mice intraperitoneally inoculated with endometrial tissue from donor mice that received antibiotics.
- FIG. 5B shows the number of lesions and
- FIG. 5C shows the total weight of lesions.
- FIG. 2 shows FISH images of endometriotic lesions in mice intraperitoneally inoculated with endometrial tissue from antibiotic-treated donor mice using EUB338 and FUSO as probes.
- FIG. 7A shows endometriotic lesions in endometriotic mice treated with antibiotics.
- FIG. 7B shows the number of lesions and
- FIG. 7C shows the total weight of lesions.
- a method for detecting Fusobacterium for diagnosing endometriosis includes the step of detecting Fusobacterium in a sample collected from a subject.
- a sample collected from a subject When the presence of Fusobacterium is detected in the sample collected from the subject, it is highly probable that the endometrium of the subject is infected with Fusobacterium, so the presence of Fusobacterium is detected in the sample. This indicates that the subject has or is likely to have endometriosis. This result can be used by a physician as an indicator for diagnosing endometriosis.
- the Fusobacterium bacterium is not particularly limited, and may be, for example, Fusobacterium nucleatum.
- the subject is not particularly limited as long as it has a uterus.
- the subject can be, for example, a human subject, and can be a human subject suspected of having or suspected of having endometriosis.
- the sample is not limited as long as it can detect Fusobacterium bacteria infected with the endometrium, for example, blood, plasma, serum, urine, endometrial cells, vaginal swab, menstrual blood, cervical cells, or ovarian tissue.
- the sample is preferably blood, plasma, serum, urine, endometrial cells, vaginal swab, or menstrual blood. From the viewpoint of specific detection of endometrial infection, the sample is more preferably endometrial cells, vaginal swab, or menstrual blood.
- the method for detecting Fusobacterium bacteria in a sample is not particularly limited.
- nucleic acid amplification such as PCR (polymerase chain reaction) method and LAMP (loop-mediated isothermal amplification) method using primers specific to Fusobacterium bacteria.
- PCR polymerase chain reaction
- LAMP loop-mediated isothermal amplification
- Conventionally known bacteria detection methods such as genetic testing by the method can be used.
- the step of detecting Fusobacterium in a sample collected from a subject includes a step of performing a nucleic acid amplification reaction on DNA derived from the sample using primers specific to Fusobacterium (nucleic acid amplification step). and may further comprise detecting an amplification product of the nucleic acid amplification reaction. Detection of amplification products may be performed after the nucleic acid amplification step or may be performed in real time during the nucleic acid amplification step. If the presence of an amplification product is detected, it can be said that Fusobacterium is present in the sample.
- DNA derived from a sample may be DNA extracted and/or isolated from a sample by a known method.
- a Fusobacterium-specific primer means one or more primers capable of amplifying a Fusobacterium-specific DNA region.
- the method for detecting amplification products is not particularly limited, and known techniques can be used.
- Amplification products can be detected, for example, by using a labeled probe such as a fluorescently labeled probe or a fluorescent intercalator, or by subjecting the reaction solution to electrophoresis.
- a labeled probe such as a fluorescently labeled probe or a fluorescent intercalator
- the reaction solution can be subjected to electrophoresis.
- magnesium ions when magnesium ions are contained in the reaction solution for the nucleic acid amplification reaction, the amplification product can also be detected by measuring the turbidity of the reaction solution.
- one aspect of the present invention can be said to be a method of collecting data for diagnosing endometriosis, which includes the step of detecting Fusobacterium in a sample collected from a subject.
- the details of the step of detecting Fusobacterium in a sample collected from a subject are as described above.
- Data on the results of detection of Fusobacterium bacteria in samples can be used by physicians to diagnose endometriosis.
- a method for collecting data for diagnosing endometriosis is based on the detection result of Fusobacterium bacterium (presence or absence of Fusobacterium bacterium) to determine whether the subject has or is likely to have endometriosis. It may further include the step of determining. In such a step, the subject is determined to have or is likely to have endometriosis if the presence of Fusobacterium is detected in the sample. The determination data thus obtained can be used by doctors to diagnose endometriosis.
- a therapeutic drug for endometriosis contains an antibacterial drug against Fusobacterium genus bacteria as an active ingredient.
- the therapeutic agent for endometriosis may specifically be a therapeutic agent for use in the treatment of endometriosis caused by Fusobacterium infection.
- Yet another aspect of the invention is the use of an antibacterial agent in the manufacture of a medicament for treating endometriosis caused by Fusobacterium infection.
- the details of Fusobacterium bacteria are as described above.
- the antibacterial agent is not particularly limited as long as it is an antibacterial agent capable of sterilizing or inhibiting the growth of Fusobacterium bacteria, and examples thereof include metronidazole antibacterial agents and chloramphenicol antibacterial agents. .
- a method for treating endometriosis includes the step of administering an antibacterial drug to a subject whose endometrium is infected with Fusobacterium spp.
- a method for treating endometriosis comprises the steps of detecting Fusobacterium in a sample collected from a subject; and administering the drug.
- the details of the antibacterial drug are as described above.
- the method of administration of the antimicrobial may be, for example, oral administration or vaginal administration. From the viewpoint of reducing the influence of the antibacterial drug on other parts of the body, the administration method is preferably transvaginal administration.
- the dosage of the antibacterial agent is not particularly limited as long as it is a therapeutically effective amount, and can be determined according to the type of antibacterial agent.
- mice used in the following test examples were collected from patients at Nagoya University Hospital and its affiliated hospitals. All mice used in the following test examples are female BALB/c mice (Japan SLC, Inc.). Fusobacterium nucleatum and Lactobacillus iners (indigenous bacteria in the vagina) that infected mice were obtained from the Center for the Conservation of Microbial Genetic Resources, Institute for Research Promotion and Social Collaboration, Gifu University. F. used in Test Example 5 Nucleatum subspecies nucleatum (ATCC25586 strain) was obtained from RIKEN, a national research and development agency. 17 ⁇ -estradiol administered to mice is manufactured by Fuji Pharma. Metronidazole (MZ) administered to mice was manufactured by Fujifilm Wako Pure Chemical Industries, Ltd., and chloramphenicol (CP) was manufactured by Sigma.
- MZ Metronidazole
- CP chloramphenicol
- FISH fluorescence in situ hybridization
- the nucleatum targeting probe FUS664 was used. Sequences of FISH probes were obtained from probeBase (http://probebase.csb.univie.ac.at/) (accession numbers: pB-159, pB-782, and pB-1346). Slides were washed with wash buffer (0.9 M NaCl, 20 mM Tris-HCl, pH 7.2) for 20 minutes at 58°C. Tissue sections were counterstained with 4',6-diamidino-2-phenylindole (DAPI) and mounted on glass slides.
- DAPI 4',6-diamidino-2-phenylindole
- Co-immunostaining with anti-TAGLN antibody and FISH probe was performed using Opal Multi-plex IHC Detection Kit (manufactured by PerkinElmer) according to the manufacturer's protocol. Fluorescence images were acquired using an inverted microscope Leica DMI6000B (manufactured by Leica Microsystems).
- EUB338 specific for eubacteria FUSO specific for Fusobacterium spp.
- F. FISH was performed using FUS664, which is specific to nucleatum, as a probe. Fluorescent images are shown in FIG. 2 (scale bar is 100 ⁇ m). Fluorescence of EUB338, FUSO, and FUS664 was observed in endometrial and ovarian tissues of endometriosis patients, and these tissues were identified by F. It was shown to be infected with Nucleatum.
- FISH Fluorescence-in-FISH
- ⁇ Test Example 2 Induction of endometriosis in mice Six-week-old donor mice were ovariectomized and intravaginally injected with 10 7 CFU (colony forming units)/10 ⁇ L PBS/day four times a week. nucleatum or L. Inert was applied to infect donor mice with bacteria. PBS (phosphate buffered saline) was applied to the control group. Two weeks after ovariectomy, endometrial tissue from donor mice was inoculated intraperitoneally into recipient mice to induce endometriosis. Subcutaneous administration of 100 ⁇ g/kg/week of 17 ⁇ -estradiol was initiated in donor mice after ovariectomy and in recipient mice after endometrial tissue inoculation. Four weeks after intraperitoneal inoculation, the peritoneal endometriotic lesions of recipient mice were excised and the number and total weight of lesions were determined.
- CFU colony forming units
- FIG. 3 shows the excised lesion.
- FIG. 3B shows the number of lesions and
- F Recipient mice inoculated with nucleatum-infected endometrial tissue had significantly higher number and total weight of lesions.
- FISH was performed on the lesion using EUB338 and FUSO as probes. Fluorescent images are shown in FIG. 4 (scale bar is 100 ⁇ m). F. Fusobacterium was detected in endometriotic lesions of recipient mice inoculated with nucleatum-infected endometrial tissue.
- ⁇ Test Example 3> Administration of Antibacterial Agent to Donor Mice Six-week-old donor mice were ovariectomized and intravaginally injected with 10 7 CFU/10 ⁇ L PBS/day four times a week. Nucleatum was applied to the donor mice to F. infected with nucleatum. One week after ovariectomy, antibiotics were administered vaginally daily for 5 days, including 17 ⁇ g/day of metronidazole (MZ) or 7 ⁇ g/day of chloramphenicol (CP). PBS was administered to the control group. Three weeks after ovariectomy, endometrial tissue harvested from donor mice was inoculated intraperitoneally into recipient mice to induce endometriosis.
- MZ metronidazole
- CP chloramphenicol
- Subcutaneous administration of 100 ⁇ g/kg/week of 17 ⁇ -estradiol was initiated in donor mice after ovariectomy and in recipient mice after endometrial tissue inoculation. Three weeks after intraperitoneal inoculation, the peritoneal endometriotic lesions of recipient mice were excised and the number and total weight of lesions were determined.
- FIG. 5 shows the excised lesion.
- FIG. 5B shows the number of lesions and
- FISH FISH was performed on the lesion using EUB338 and FUSO as probes. Fluorescent images are shown in FIG. 6 (scale bar is 100 ⁇ m). Fusobacterium spp. was detected in the control group inoculated with endometrial tissue from donor mice not administered antibiotics, whereas in recipient mice inoculated with endometrial tissue from donor mice administered with antibiotics. No Fusobacterium was detected.
- ⁇ Test Example 4> Administration of Antibacterial Agent to Recipient Mice Six-week-old donor mice were ovariectomized and intravaginally injected with 10 7 CFU/10 ⁇ L PBS/day four times a week. Nucleatum was applied to the donor mice to F. infected with nucleatum. Two weeks after ovariectomy, endometrial tissue from donor mice was inoculated intraperitoneally into recipient mice to induce endometriosis. Subcutaneous administration of 100 ⁇ g/kg/week of 17 ⁇ -estradiol was initiated in donor mice after ovariectomy and in recipient mice after endometrial tissue inoculation.
- recipient mice were orally administered antibiotics containing 17 ⁇ g/day of metronidazole or 7 ⁇ g/day of chloramphenicol daily for 5 days. Twenty-one days after the end of administration, the peritoneal endometriotic lesions of the recipient mice were excised, and the number and total weight of the lesions were measured.
- FIG. 7 shows the excised lesion (scale bar is 1 cm).
- antibiotic-treated endometriotic mice showed no significant change in the number of lesions, but a significant reduction in total lesion weight.
- F. 10 ⁇ L of bacterial solution of nucleatum subspecies nucleatum ATCC25586 strain
- DNA was extracted from 500 ⁇ L of the obtained menstrual blood sample using QIAamp DNA Microbiome Kit.
- the F. LAMP reactions were performed using nucleatum subspecies nucleatum-specific primer sets. The reaction was carried out at 65°C for 120 minutes.
- Amplification products were detected by monitoring the fluorescence intensity of SYTO (trademark) 63 Red Fluorescent Nucleic Acid Stain (manufactured by Thermo Fisher Scientific). The time until the moving average value of the fluorescence intensity reached the threshold a certain number of times was measured, and the first time when the threshold was exceeded was taken as the Tt value.
- 10 ⁇ L of physiological saline was added to 490 ⁇ L of Fusobacterium-negative menstrual blood, and using the obtained menstrual blood sample, DNA extraction and LAMP reaction were performed in the same manner as described above. Tt values are shown in Table 2.
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Abstract
Description
[1]対象から採取した試料中のフソバクテリウム属細菌を検出する工程を含み、試料中にフソバクテリウム属細菌の存在が検出されることは、対象が子宮内膜症に罹患している又は罹患する可能性が高いことを示す、子宮内膜症を診断するためにフソバクテリウム属細菌を検出する方法。フソバクテリウム属細菌はフソバクテリウム・ヌクレアタム(Fusobacterium nucleatum)であってよい。試料は、血液、血漿、血清、尿、子宮内膜細胞、腟ぬぐい液、又は月経血であってよい。
[2]フソバクテリウム属細菌に対する抗菌薬を有効成分として含有する、子宮内膜症治療薬。
[3]子宮内膜がフソバクテリウム属細菌に感染した対象に抗菌薬を投与する工程を含む、子宮内膜症の治療方法。対象から採取した試料中のフソバクテリウム属細菌を検出して、対象の子宮内膜がフソバクテリウム属細菌に感染しているか否かを確認する工程を、抗菌薬を投与する工程の前に行ってもよい。抗菌薬の投与は経腟投与であってよい。
[4]対象から採取した試料中のフソバクテリウム属細菌を検出する工程を含む、子宮内膜症の診断のためのデータを収集する方法。
[5]フソバクテリウム属細菌の感染を原因とする子宮内膜症を治療するための医薬の製造における抗菌薬の使用。
以下の試験例において使用した子宮内膜及び卵巣の組織は、名古屋大学医学部附属病院及びその関連病院の患者から採取した。以下の試験例において使用したマウスは、いずれも雌のBALB/cマウス(日本エスエルシー株式会社)である。マウスに感染させたフソバクテリウム・ヌクレアタム及びラクトバチルス・イナース(Lactobacillus iners)(腟内常在菌)は、岐阜大学研究推進・社会連携機構微生物遺伝資源保存センターから取得した。試験例5において用いたF.ヌクレアタム亜種ヌクレアタム(ATCC25586株)は、国立研究開発法人理化学研究所から取得した。マウスに投与した17β-エストラジオールは富士製薬工業株式会社製である。マウスに投与したメトロニダゾール(MZ)は富士フイルム和光純薬株式会社製であり、クロラムフェニコール(CP)はシグマ社製である。
以下の試験例において、蛍光in situハイブリダイゼーション(FISH)による解析は次のように行った。まず、ホルマリン固定パラフィン包埋組織切片のスライドを脱パラフィンし、0.2M HClで20分間処理し、次いで、ハイブリダイゼーション緩衝液(0.9M NaCl、20mM Tris-HCl、pH7.2、0.1%ドデシル硫酸ナトリウム)中、10ng/μLのFISHプローブと56℃で一晩ハイブリダイズさせた。FISHプローブとしては、5’FAM標識真正細菌ユニバーサルプローブEUB338、5’Cy3標識フソバクテリウム属細菌特異的プローブFUSO、及び5’Cy5標識F.ヌクレアタム標的プローブFUS664を用いた。FISHプローブの配列は、probeBase(http://probebase.csb.univie.ac.at/)から取得した(アクセッション番号:pB-159、pB-782、及びpB-1346)。洗浄緩衝液(0.9M NaCl、20mM Tris-HCl、pH7.2)を用いて、58℃で20分間、スライドを洗浄した。組織切片を4’,6-ジアミジノ-2-フェニルインドール(DAPI)で対比染色し、スライドガラスにマウントした。Opal Multi-plex IHC Detection Kit(パーキンエルマー社製)を用いて、製造元のプロトコルに従って、抗TAGLN抗体及びFISHプローブによる共免疫染色を行った。倒立顕微鏡Leica DMI6000B(ライカマイクロシステムズ社製)を用いて蛍光画像を取得した。
QIAamp DNA Microbiome Kit(キアゲン社製)を用いて、正常なヒト子宮内膜組織(n=9)及び子宮内膜症患者の子宮内膜組織(n=9)からゲノムDNAを抽出した。フソバクテリウム属細菌に対する特異的なプライマーを用いてqPCR(定量的ポリメラーゼ連鎖反応)を行い、全16S rRNA中のフソバクテリウム属の16S rRNAの割合をΔCT法により算出した。結果を図1に示す。フソバクテリウム属の16S rRNAは、正常なヒト子宮内膜組織では検出されなかったが、子宮内膜症患者の子宮内膜組織では検出された(*P<0.05)。
6週齢のドナーマウスの卵巣を摘出し、腟内に1週間で4回、107CFU(コロニー形成ユニット)/10μL PBS/日のF.ヌクレアタム又はL.イナースを適用して、ドナーマウスを細菌に感染させた。コントロール群にはPBS(リン酸緩衝生理食塩水)を適用した。卵巣の摘出から2週間後、ドナーマウスから採取した子宮内膜組織をレシピエントマウスに腹腔内接種して、子宮内膜症を誘発した。ドナーマウスには卵巣摘出後から、レシピエントマウスには子宮内膜組織接種後から、100μg/kg/週の17β-エストラジオールの皮下投与を開始した。腹腔内接種から4週間後、レシピエントマウスの腹膜子宮内膜症病変を摘出し、病変の数及び総重量を測定した。
6週齢のドナーマウスの卵巣を摘出し、腟内に1週間で4回、107CFU/10μL PBS/日のF.ヌクレアタムを適用して、ドナーマウスをF.ヌクレアタムに感染させた。卵巣の摘出から1週間後、17μg/日のメトロニダゾール(MZ)又は7μg/日のクロラムフェニコール(CP)を含む抗菌薬を5日間毎日経腟投与した。コントロール群にはPBSを投与した。卵巣の摘出から3週間後、ドナーマウスから採取した子宮内膜組織をレシピエントマウスに腹腔内接種して、子宮内膜症を誘発した。ドナーマウスには卵巣摘出後から、レシピエントマウスには子宮内膜組織接種後から、100μg/kg/週の17β-エストラジオールの皮下投与を開始した。腹腔内接種から3週間後、レシピエントマウスの腹膜子宮内膜症病変を摘出し、病変の数及び総重量を測定した。
6週齢のドナーマウスの卵巣を摘出し、腟内に1週間で4回、107CFU/10μL PBS/日のF.ヌクレアタムを適用して、ドナーマウスをF.ヌクレアタムに感染させた。卵巣の摘出から2週間後、ドナーマウスから採取した子宮内膜組織をレシピエントマウスに腹腔内接種して、子宮内膜症を誘発した。ドナーマウスには卵巣摘出後から、レシピエントマウスには子宮内膜組織接種後から、100μg/kg/週の17β-エストラジオールの皮下投与を開始した。腹腔内接種から3週間後、17μg/日のメトロニダゾール又は7μg/日のクロラムフェニコールを含む抗菌薬を、レシピエントマウスに5日間毎日経口投与した。投与終了から21日後、レシピエントマウスの腹膜子宮内膜症病変を摘出し、病変の数及び総重量を測定した。
フソバクテリウム属細菌陰性の月経血490μLにF.ヌクレアタム亜種ヌクレアタム(ATCC25586株)の菌液を10μL添加し、得られた月経血試料500μLから、QIAamp DNA Microbiome Kitを用いてDNAを抽出した。得られたDNAに対して、表1に示すF.ヌクレアタム亜種ヌクレアタム特異的プライマーセットを用いてLAMP反応を行った。反応は65℃で120分行った。増幅産物の検出は、SYTO(商標) 63 Red Fluorescent Nucleic Acid Stain(サーモフィッシャーサイエンティフィック社製)の蛍光強度をモニタリングすることにより行った。蛍光強度の移動平均値が閾値を一定回数達するまでの時間を測定し、閾値を超えた最初の時間をTt値とした。コントロールとして、フソバクテリウム属細菌陰性の月経血490μLに生理食塩水を10μL添加し、得られた月経血試料を用いて、上記同様にDNA抽出及びLAMP反応を行った。Tt値を表2に示す。
Claims (7)
- 対象から採取した試料中のフソバクテリウム属細菌を検出する工程を含み、
試料中にフソバクテリウム属細菌の存在が検出されることは、対象が子宮内膜症に罹患している又は罹患する可能性が高いことを示す、
子宮内膜症を診断するためにフソバクテリウム属細菌を検出する方法。 - フソバクテリウム属細菌がフソバクテリウム・ヌクレアタム(Fusobacterium nucleatum)である、請求項1に記載の方法。
- 試料が、血液、血漿、血清、尿、子宮内膜細胞、腟ぬぐい液、又は月経血である、請求項1又は2に記載の方法。
- フソバクテリウム属細菌に対する抗菌薬を有効成分として含有する、子宮内膜症治療薬。
- 子宮内膜がフソバクテリウム属細菌に感染した対象に抗菌薬を投与する工程を含む、子宮内膜症の治療方法。
- 対象から採取した試料中のフソバクテリウム属細菌を検出して、対象の子宮内膜がフソバクテリウム属細菌に感染しているか否かを確認する工程を、抗菌薬を投与する工程の前に行う、請求項5に記載の方法。
- 抗菌薬の投与が経腟投与である、請求項5又は6に記載の方法。
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002040036A1 (fr) * | 2000-11-15 | 2002-05-23 | Masao Sugamata | Medicaments destines a la prevention ou au traitement de l'endometriose ou du myome uterin |
US20200237786A1 (en) * | 2017-08-01 | 2020-07-30 | Soft Cell Biological Research, Llc | Diagnosis and treatment of endometriosis by screening for l-form bacteria |
JP2020532979A (ja) * | 2017-08-28 | 2020-11-19 | プソマーゲン, インコーポレイテッドPsomagen, Inc. | 微生物に関連する女性生殖器系関連状態の特徴解析のための方法及びシステム |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002040036A1 (fr) * | 2000-11-15 | 2002-05-23 | Masao Sugamata | Medicaments destines a la prevention ou au traitement de l'endometriose ou du myome uterin |
US20200237786A1 (en) * | 2017-08-01 | 2020-07-30 | Soft Cell Biological Research, Llc | Diagnosis and treatment of endometriosis by screening for l-form bacteria |
JP2020532979A (ja) * | 2017-08-28 | 2020-11-19 | プソマーゲン, インコーポレイテッドPsomagen, Inc. | 微生物に関連する女性生殖器系関連状態の特徴解析のための方法及びシステム |
Non-Patent Citations (5)
Title |
---|
CREGGER MELISSA A, LENZ KATHERINE, LEARY ELIZABETH, LEACH RICHARD, FAZLEABAS ASGERALLY, WHITE BRYAN, BRAUNDMEIER ANDREA: "Reproductive Microbiomes: Using the Microbiome as a Novel Diagnostic Tool for Endometriosis ", REPRODUCTIVE IMMUNOLOGY: OPEN ACCESS, vol. 2, no. 3, 25 September 2017 (2017-09-25), XP093048897, ISSN: 2476-1974 * |
HUMAN REPRODUCTION, vol. 17, no. 7, 2002, pages 1704 - 1708 |
JOURNAL OF JAPAN SOCIETY OF ENDOMETRIOSIS, vol. 33, 2012, pages 62 - 67 |
KHALEQUE N. KHAN, AKIRA FUJISHITA, KOICHI HIRAKI, MICHIO KITAJIMA, MASAHIRO NAKASHIMA, SHINJI FUSHIKI, JO KITAWAKI: "Bacterial contamination hypothesis: a new concept in endometriosis", REPRODUCTIVE MEDICINE AND BIOLOGY, SPRINGER JAPAN, TOKYO, vol. 17, no. 2, 1 April 2018 (2018-04-01), Tokyo , pages 125 - 133, XP055571176, ISSN: 1445-5781, DOI: 10.1002/rmb2.12083 * |
WANG X.-M., Z.-Y. MA, N. SONG: " Inflammatory cytokines IL-6, IL-10, IL-13, TNF-α and peritoneal fluid flora were associated with infertility in patients with endometriosis", EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES, vol. 22, 1 January 2018 (2018-01-01), pages 2513 - 2518, XP093048899 * |
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