JP2022505895A - 生体表面の治療方法 - Google Patents
生体表面の治療方法 Download PDFInfo
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- JP2022505895A JP2022505895A JP2021522980A JP2021522980A JP2022505895A JP 2022505895 A JP2022505895 A JP 2022505895A JP 2021522980 A JP2021522980 A JP 2021522980A JP 2021522980 A JP2021522980 A JP 2021522980A JP 2022505895 A JP2022505895 A JP 2022505895A
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Abstract
Description
本文脈では、「PDT」という略称でも呼ばれる「光線力学療法」は、光が何らかの形態の活性酸素に変換される任意の療法を意味する。
非コヒーレント放射光エネルギーを、第1及び第2エネルギーレベルの少なくとも2つの異なるエネルギーレベルで生成し;
非コヒーレント放射光エネルギーから、第1エネルギーレベルの大部分のエネルギーに対応する波長を有する第1光と、第2エネルギーレベルの大部分のエネルギーに対応する波長を有する第2光とを供給し;
第1光及び第2光を同時に生体表面に照射する。
(i)複数のエネルギーレベルで非コヒーレント放射光エネルギーを生成する工程と;
(ii)放射エネルギーの少なくとも一部を吸収することができる媒体又は分子を提供する工程と;
(ii)放射エネルギーの少なくとも一部を吸収することができる媒体又は分子を光活性化するために必要な実質的に正確な光エネルギー波長で光エネルギーを送出する工程;疾患の予防的又は治療的処理と;
(iv)内因的に、外因的に又は内因的に及び外因的に両方で、活性一重項酸素及び活性酸素種を前記標的において生成させることにより、標的を予防又は治療的に処理する工程。
(i)水相と;
(ii)2.8eV~3.5eVの間に大部分のエネルギーを持つ高エネルギー光子と;
(iii)1.24eV~1.65eVの間に大部分のエネルギーを持つ低エネルギー光子とを含む、組成物。
(i)PDMSゲルと;
(ii)バイオフィルムと;
(iii)2.8eV~3.5eVの間に大部分のエネルギーを持つ高エネルギー光子と;
(iv)1.24eV~1.65eVの間に大部分のエネルギーを持つ低エネルギー光子とを含む、組成物。
最初の一連の試験では、hamamatsu 1394及びNIR光源で処理した後、室内光で着色歯垢の特異性を観察した。
ミュータンスレンサ球菌(ATCC 25175)を培養チャンバ(36℃、5%CO2)内でBHIブロス(Bio-Rad 3564014)中、18時間培養した。得られた細菌懸濁液を0.9%NaCl懸濁液で希釈し、光学濃度を0.46に調整した。
光照射の前に、増殖培地をインドシアニングリーン懸濁液と交換し、暗所、室温で10分間インキュベートした。インキュベーション後、バイオフィルムを0.9%NaCl水溶液で2回洗浄した。処理時間は、所望の光量及び既知の強度から算出した。
PDTによるレンサ球菌バイオフィルムの連続処理の最初の実験は、250ug/mlのICGを810nmの光と共に使用して遂行した。1日目、2日目及び4日目の異なる時期のバイオフィルムを成長させ、各バイオフィルムに1回ずつ治療を行い、異なる時期のバイオフィルムに対する1回の治療の効果を評価した。
Claims (42)
- 3.5eV~2.8eVの範囲に大部分のエネルギーを持つ光子による第1光と、1.24eV~2.48eVの範囲に大部分のエネルギーを持つ光子による第2光との2つの異なるエネルギーレベルの光の形態をした電磁放射線で生体表面を治療する方法であって、前記第1光及び前記第2光の光子を同時に前記生体表面に照射する、方法。
- 請求項1に記載の方法であって、
非コヒーレント放射光エネルギーを、第1及び第2エネルギーレベルの少なくとも2つの異なるエネルギーレベルで生成し;
前記非コヒーレント放射光エネルギーから、前記第1エネルギーレベルの大部分のエネルギーに対応する波長を有する第1光と、前記第2エネルギーレベルの大部分のエネルギーに対応する波長を有する第2光とを供給し;
前記第1光及び前記第2光を同時に生体表面に照射する、方法。 - 請求項1又は2に記載の方法であって、前記表面の生体物質が、特に活性一重項酸素若しくは活性酸素種又はその両方を生成するように、内因性及び外因性の励起を受ける、方法。
- 微生物又はウイルス又は真菌による生物組織の汚染などの表面の生物学的汚染を防止又は対策を取ることを含む、請求項1~3のいずれか一項に記載の方法。
- 美容的治療又は抗菌若しくは抗ウイルス若しくは抗真菌治療を含む、請求項1~4のいずれか一項に記載の方法。
- 前記光をそのまま使用する、請求項1~5のいずれか一項に記載の方法。
- 光線力学療法を用いて前記表面を治療するために、前記光を少なくとも1つの光感受性物質と組み合わせる、請求項1~6のいずれか一項に記載の方法。
- 前記高エネルギー光子及び低エネルギー光子を、前記低エネルギー光子で活性化され得る少なくとも1つの外因性光増感剤と併用して照射する、請求項1~7のいずれか一項に記載の方法。
- 哺乳動物組織の局所治療で使用するための光増感剤を提供し、前記増感剤を哺乳動物の皮膚又は粘膜などの前記組織の表面部位に塗布し、このように処理した前記部位を、続いて又は同時に2つの異なる波長の光にさらす、請求項1~8のいずれか一項に記載の方法。
- 前記光が、2.8eV~3.5eVの間に大部分のエネルギーを持つ高エネルギー光子による第1光と;1.24eV~1.65eVの間に大部分のエネルギーを持つ低エネルギー光子による第2光とからなる、請求項1~9のいずれか一項に記載の方法。
- 光増感剤を、組織、バイオフィルム、唾液、皮膚、歯垢及び歯の表面又は粘膜などの標的に存在する細菌、ウイルス又は真菌などの微生物と、水溶液、アルコール含有溶液、親水性ゲル、疎水性ゲル、親水性ポリマー、疎水性ポリマー又はペースト、ローション、テープ、錠剤、膏薬若しくはバンドエイドの形態で前記標的に塗布することにより接触させる、請求項1~10のいずれか一項に記載の方法。
- 前記生体表面が、組織、バイオフィルム、唾液、皮膚、歯垢及び歯の表面並びに粘膜から選択される、請求項1~11のいずれか一項に記載の方法。
- 生体表面の非治療的処理を含む、請求項1~12のいずれか一項に記載の方法。
- 内因性分子によって吸収される高エネルギー光子及び外因性分子によって吸収される低エネルギー光子が、光電子部品又はデバイスから同時に放出される、請求項1~13のいずれか一項に記載の方法。
- 高エネルギー光子及び低エネルギー光子を、1Hz~1GHzの周波数で交互の若しくはパルス化した給電電圧又は電流を用いて互いに独立して放出することを含む、請求項1~14のいずれか一項に記載の方法。
- 光検出器などの任意選択の検出器を含む光電子デバイスを使用して、内因性及び外因性分子又はそれらの光分解副生成物の光ルミネセンスを検出することを含む、請求項1~15のいずれか一項に記載の方法。
- 直列又は並列に接続された複数の半導体チップを有する光電子デバイスを使用することを含み、前記チップが、2.48eV~1.24eVの範囲及び3.5eV~2.8eVの範囲でそれぞれ変化させることができる発光エネルギーを示す、請求項1~16のいずれか一項に記載の方法。
- 第1期間中に第1光増感剤を使用し、第2期間中に前記第1光増感剤とは異なる第2光増感剤を使用することを含む、請求項1~17のいずれか一項に記載の方法。
- 前記第1光増感剤及び前記第2光増感剤が、それぞれ第1光及び第2光を用いて活性化される、請求項17又は18に記載の方法。
- 前記第1光増感剤を組み合わせて若しくは交互に使用する又はそれらの少なくとも1つを前記治療中の所定の時点で使用する、請求項17~19のいずれか一項に記載の方法。
- 前記光増感剤(単数又は複数)が、ヒペリシン、クルクミン、フェナレノン誘導体、セルコスポリン、ソラレン、キサントトキシン、アンゲリシン、α-テルチエニル、フェニルテパトリイン、THC、カンナビジオール(CBD)及びこれらの組み合わせを含む天然化合物の群から並びにRB(ローズベンガル)、MB、ポルフィリン誘導体、クルクミン誘導体、メチレンブルー、インドシニングリーン、エリトシン、フェナレノン誘導体、フラーレン誘導体、キサンテン誘導体及びこれらの組み合わせを含む合成光増感剤の群から選択される又は少なくとも1つの光増感剤が上記の天然化合物の群から選択され、少なくとも1つの光増感剤が上記の合成化合物の群から選択される、請求項1~20のいずれか一項に記載の方法。
- 光エネルギー、特に非コヒーレント放射光エネルギーを、400~430nmの第1波長では、好ましくは1~120J/cm2の照射量で、特に約10~約2500mW/cm2の電力密度で0.5秒~120分間並びに780~830nmの第2波長では、好ましくは1~120J/cm2の照射量で、特に約10~約2500mW/cm2の電力密度で0.5秒~120分間、生体表面に照射する、請求項1~21のいずれか一項に記載の方法。
- 前記光が1つ又は複数の発光ダイオードによって生成される、請求項1~22のいずれか一項に記載の方法。
- 哺乳動物の感染症の局所治療に使用するための増感剤であって、前記増感剤を皮膚又は粘膜の一部に塗布し、前記部位を、続いて又は同時に、2.8eV~3.5eVの間に大部分のエネルギーを持つ第1光子及び1.24eV~1.65eVの間に大部分のエネルギーを持つ第2光子にさらす、増感剤。
- 前記感染症が、組織、バイオフィルム、唾液、皮膚、歯垢、歯の表面及び粘膜の微生物、ウイルス又は真菌感染症である、請求項22に記載の哺乳動物の感染症の局所治療に使用するための増感剤。
- 請求項23又は24に記載の哺乳動物の感染症の局所治療に使用するための増感剤であって、ヒペリシン、クルクミン、フェナレノン誘導体、セルコスポリン、ソラレン、キサントトキシン、アンゲリシン、α-テルチエニル、フェニルテパトリイン、THC、カンナビジオール(CBD)及びこれらの組み合わせを含む天然化合物の群から並びにRB(ローズベンガル)、MB、ポルフィリン誘導体、クルクミン誘導体、メチレンブルー、インドシニングリーン、エリトシン、フェナレノン誘導体、フラーレン誘導体、キサンテン誘導体、レスベラトロール、ポリフェノール化合物及び/若しくはアントシアニン化合物を含むリンゴンベリー及びブルーベリーなどのベリー類の抽出物及びこれらの組み合わせを含む合成光増感剤の群から選択される少なくとも1つの光増感剤を含む又は前記光増感剤が、少なくとも1つの光増感剤が上記の天然化合物の群から選択され、少なくとも1つの光増感剤が上記の合成化合物の群から選択される組み合わせである、増感剤。
- 虫歯形成及び歯周炎を特徴とする哺乳動物の口腔内バイオフィルム状態を治療する際に、同時に、別々に又は連続して使用するための、抗菌因子と光増感剤との組み合わせであって;前記抗菌因子が、抗菌性ブルーライト、殺菌剤、活性酸素発生剤及び酸素輸送剤のうちの少なくとも1つを含む、抗菌因子と光増感剤との組み合わせ。
- 前記光増感剤を、光エネルギー、特に非コヒーレント放射光エネルギーに、400~430nmの第1波長では、好ましくは1~120J/cm2の照射量で、特に約10~約2500mW/cm2の電力密度で0.5秒~120分間並びに780~830nmの第2波長では、好ましくは1~120J/cm2の照射量で、特に約10~約2500mW/cm2の電力密度で0.5秒~120分間さらす、請求項24~26のいずれか一項に記載の使用のための増感剤又は請求項27に記載の使用のための組み合わせ。
- 組織、バイオフィルム、唾液、皮膚、歯垢、歯の表面及び粘膜の微生物、ウイルス又は真菌感染症を治療するためのキットであって、高エネルギー光子からなる第1光及び低エネルギー光子からなる第2光を同時に放出することができる光電子デバイス(前記第1光及び前記第2光は、前記光電子部品又はデバイスから放出される全ての光の少なくとも80%に相当する)と、高エネルギー光子及び低エネルギー光子の少なくともいずれかによって活性化され得る少なくとも1つの光増感剤とを含む、キット。
- 2.8eV~3.5eVの間に大部分のエネルギーを持つ高エネルギー光子及び1.24eV~1.65eVの間に大部分のエネルギーを持つ低エネルギー光子を放出することができる光電子デバイスを、光増感剤又は複数の光増感剤と共に含むキットであって、長期使用のための予防的及び治療的な歯科/口腔ケアにおいて持続的な抗菌効果を実現するための方法を実施することができる、キット。
- 2つの波長を、同時に又は互いから0.001~1000ミリ秒、例えば約100ミリ秒の時間間隔で放出することができる、特に請求項29又は30に開示される種類の光電子デバイスを、任意選択で光増感剤又は複数の光増感剤と共に含むキットであって、長期使用のための予防的及び治療的な歯科/口腔ケアにおいて持続的な抗菌効果を実現するための方法を実施することができる、キット。
- 2つ以上の発光面(EPI)を有する発光部品を有する光電子デバイスを、任意選択で光増感剤又は複数の光増感剤と共に含むキットであって、長期使用のための予防的及び治療的な歯科/口腔ケアにおいて持続的な抗菌効果を実現するための方法を実施することができる、キット。
- 請求項29~32のいずれか一項に記載のキットであって、治療の進行を監視することができるセンサをさらに含み、前記センサが、特に治療の進行を検出することができ、前記治療の進行に基づいて調節信号を生成することができ、前記光電子デバイスに連結している前記センサが、前記調節信号に応じて前記光電子デバイスから放出される前記光を調節する、キット。
- 歯ブラシの形状又は歯の噛み合わせ面の間の口の中に挿入可能なマウスピースの形状又は棒状照明器具の形状を示す光電子デバイスを含む、請求項29~33のいずれか一項に記載のキット。
- 使用される前記光電子デバイスが、マイクロスペクトロメータセンサ、温度センサ、光センサ、pHセンサ、力センサ、ジャイロスコープ、圧力センサ又はそれらの組み合わせを含む、請求項29~34のいずれか一項に記載のキット。
- 二波長光源と共に又は光増感剤と一緒に使用することができる歯のホワイトニング物質を含む、請求項29~35のいずれか一項に記載のキット。
- 光増感剤を水溶性発泡錠剤の形態で含み、さらに二重光光子を放出することができる手持ち式光照射器を含む、請求項29~36のいずれか一項に記載のキット。
- 光増感剤を水溶性発泡錠剤、ゲル又はペーストの形態で含み、さらに1回限りの使用のマウスピース及び光照射器を含む、請求項29~37のいずれか一項に記載のキット。
- 光増感剤を、ベリー抽出物口内洗浄液中に入れられた又はもともと存在する光増感剤の形態で含む、請求項29~38のいずれか一項に記載のキット。
- 増強化合物として過酸化水素を含む、請求項29~39のいずれか一項に記載のキット。
- 前記光電子デバイスが、光、特に非コヒーレント放射光を、400~430nmの第1波長では、好ましくは1~120J/cm2の照射量で、特に約10~約2500mW/cm2の電力密度で0.5秒~120分間並びに780~830nmの第2波長では、好ましくは1~120J/cm2の照射量で、特に約10~約2500mW/cm2の電力密度で0.5秒~120分間放出することができる、請求項29~40のいずれか一項に記載のキット。
- 前記光電子デバイスが、光源として発光ダイオード(単数又は複数)を含む、請求項29~40のいずれか一項に記載のキット。
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