JP6396544B2 - エクトインの治療的使用 - Google Patents
エクトインの治療的使用 Download PDFInfo
- Publication number
- JP6396544B2 JP6396544B2 JP2017133770A JP2017133770A JP6396544B2 JP 6396544 B2 JP6396544 B2 JP 6396544B2 JP 2017133770 A JP2017133770 A JP 2017133770A JP 2017133770 A JP2017133770 A JP 2017133770A JP 6396544 B2 JP6396544 B2 JP 6396544B2
- Authority
- JP
- Japan
- Prior art keywords
- composition
- ectoine
- inflammation
- cells
- granulocytes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Images
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- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
- A61K31/505—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/56—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids
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- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/56—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids
- A61K31/57—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids substituted in position 17 beta by a chain of two carbon atoms, e.g. pregnane or progesterone
- A61K31/573—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids substituted in position 17 beta by a chain of two carbon atoms, e.g. pregnane or progesterone substituted in position 21, e.g. cortisone, dexamethasone, prednisone or aldosterone
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/56—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids
- A61K31/58—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids containing heterocyclic rings, e.g. danazol, stanozolol, pancuronium or digitogenin
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- A—HUMAN NECESSITIES
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- A61P11/00—Drugs for disorders of the respiratory system
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
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Description
カーボンナノ粒子(CNP、14nm、Printex 90、独国フランクフルト所在のDegussa社)を、超音波処理によって、リン酸緩衝塩溶液(PBS)中に懸濁させた。同様に、PBS中にエクトインの0.1mMおよび1mM溶液を生成した。0.4mlのCNP粒子懸濁液をFisher 344雌ラットに気管内投与した。一日後と二日後に、それぞれの0.4mlのエクトインPBS溶液による治療を行った。三日目にラットを殺し、肺を各々5mlのPBSで4回パージした。個々の動物の細胞を1mlのPBS中に懸濁させ、遠心分離した。沈殿物をPBSで一度洗浄し、50μg/mlのヨウ化プロピジウム(PI)を含有する低張液(0.1%のクエン酸ナトリウム、0.1%のトリトンX100)300μl中に再度懸濁させた。アポトーシス速度を決定するために、最後に蛍光測定を行った。
アポトーシスに対するエクトインの作用を、ヒト好中球を手段として調査した。若くて健康な提供者(3人の男性と2人の女性)からの好中球を単離し、表示の量のエクトイン(mm)で治療した。治療は、エクトイン単独(白抜きの棒)と33μg/mlのCNP(黒塗りの棒)で行った。エクトインは対照群(C)においては投与しなかった。結果が図2に示されている。
アポトーシスに対するエクトインの作用を、ヒト好中球を手段として調査した。若くて健康な提供者(3人の男性と2人の女性)の好中球を単離し、PBS(黒い棒)と1mMのエクトイン(灰色の棒)で2時間に亘り前治療した。その後、炎症性因子による治療を行わずに、それぞれ、33μg/mlのカーボンナノ粒子(ufCB:超微細カーボンブラック)、300nMのLTB4、20ng/mlのGM−CSFまたは1μMのデキサメタゾンによる治療を行った。結果が図3に示されている(†:対照群に対する有意差;*:炎症性因子とPBSのみにより治療した好中球に対する有意差;実験2と類似したアポトーシスを起こした細胞の量の測定)。
アポトーシスに対するエクトインの有効性を、COPD患者および対応する年齢の非COPD患者について、実験3と同様に示した。好中性顆粒球をそれぞれ1mMのエクトインで2時間に亘り前治療した。PBSの前治療後、33μg/mlのCNP、300nMのLTB4、20ng/mlのGM−CSFまたはPBSにより16時間に亘り治療を行った。より高いベースアポトーシスが見られたが、それにもかかわらず、アポトーシスは、炎症性刺激剤の作用によって減少し、エクトインによる追加の治療により、アポトーシス速度が著しく回復した。結果が図4に示されている(黒い棒:エクトインによる前治療;白抜きの棒:PBSによる前治療;*:CNPまたは炎症性メディエータによる治療を行わなかった対照群に対する有意差;§:エクトインを含まない治療に対する有意差;実験2と類似したアポトーシスを起こした細胞の量の測定)。
実験5〜7について、好中性顆粒球は血液サンプルから得た。1群および2群は、現在の患者研究に参加した人からなった。安定したCOPD病歴(GOLDIII/IV)を有する男性の患者(40才から80才)および同じ年齢群からの健康な対照患者。
好中球のアポトーシス速度に対するコルチコステロイドブデソニドと組み合わされたエクトインの影響が図5に示されている。ヨウ化プロピジウムの着色(FACS−フローサイトメトリー)後に、sub−G1−細胞を測定した。細胞:初代末梢血好中球。Percoll(登録商標)遠心分離による好中球の単離。16時間に亘る、33μg/mlのCNP、300nMのLTB4、20ng/mlのGM−CSF、1μMのブデソニド、1mMのエクトインおよびそれらの組合せの存在下での2×106好中球の培養。図5A:全てのサンプル(n=15)からの累積した細胞、図5B:COPD患者(n=5)からの細胞、図5C:健康な年齢対照群(n=5)からの細胞、図5D:若い有志(n=5)からの細胞。
抗アポトーシスシグナルに対するブデソニドと組み合わされたエクトインへの影響が図6から分かる。好中球の選択されたサンプルについて、Aktリン酸化反応およびMcl−1タンパク質レベルの測定により、タンパク質キナーゼB(Akt)およびMcl−1を通じて関連シグナルを検出した。「Percoll」遠心分離による好中球の単離、6時間に亘る、33μg/mlのCNP、1μMのブデソニド、1mMのエクトインおよびそれらの組合せの存在下での2×106好中球の培養。3人のCOPD患者および対応する年齢対照群からの3人の各々からの材料に、X線フイルム上のタンパク質単離ウエスタンブロット蛍光法を行った。その結果から、Aktシグナル伝達経路を作動させ、抗アポトーシスタンパク質Mcl−1の量を増加させる、ブデソニドの抗アポトーシス効果が、明らかに分かる。エクトインは、CNPの存在下でも、この効果を妨げることができる。
ヒト好中球のアポトーシス速度に対する様々な他の試験物質の影響が図7に示されている。ヨウ化プロピジウムの着色(FACS−フローサイトメトリー)後に、sub−G1−細胞を測定した。細胞:初代末梢血好中球。「Percoll」遠心分離による好中球の単離、および16時間に亘る、33μg/mlのCNP、1μMのブデソニド、1mMのエクトイン、1mMの尿素、1mMのエクトインアミドおよびそれらの組合せの存在下での2×106好中球の培養。細胞は、若い有志(3群)から得た、n=5、bud=ブデソニド。2種類の追加の試験物質(尿素および2−ヒドロキシ−5−アミノ安息香酸のエクトインアミド)を、それらが、好中球への抗アポトーシス効果を阻害できるか否かを確認するために調査した。両方の物質には、バックグラウンドアポトーシス速度への影響がなかった。エクトインアミドは、ブデソニドの有無にかかわらず、カーボンナノ粒子(CNP)により生じたアポトーシス速度の低減を防ぐことができるのが分かったが、このことは、尿素によって達成されなかった。
1.エクトイン、ヒドロキシエクトインおよび/またはこれらの化合物の塩、エステルまたはアミドを含む、好中性顆粒球、マクロファージ、好酸性顆粒球、好塩基性顆粒球、肥満細胞、リンパ球、類上皮細胞、樹枝状細胞、または炎症に関与する他の細胞への抗アポトーシスシグナルを抑制するための組成物。
・ エクトイン、ヒドロキシエクトインおよび/またはこれらの化合物の塩、エステルまたはアミドを含む第1の組成物、および
・ コルチコステロイドを含む第2の組成物、
を少なくとも含み、該組成物が短期間で投与するために提供される、配合剤。
R1=H、OHまたはOR2であり、
R2=アルキル、シクロアルキル、またはアリール、好ましくは、C1からC10アルキル、C1からC10シクロアルキルまたはC1からC10アリールである。
Claims (8)
- 炎症に関与する細胞への抗アポトーシスシグナルを抑制するための組成物であって、エクトイン、ヒドロキシエクトインおよび/またはこれらの化合物の塩を含み、前記抗アポトーシスシグナルの抑制が、炎症の治療または予防におけるものであり、前記炎症が、浮遊粒子状物質の直接の影響に起因しない慢性閉塞性肺疾患、ARDS、嚢胞性線維症、肺線維症、珪肺症、またはサルコイドーシスに関係するものである、組成物。
- 前記炎症に関与する細胞が、好中性顆粒球、マクロファージ、好酸性顆粒球、好塩基性顆粒球、肥満細胞、リンパ球、類上皮細胞、および樹状細胞からなる群より選択される、請求項1記載の組成物。
- 前記炎症が慢性炎症である、請求項1または2記載の組成物。
- 少なくともコルチコステロイドを含む、請求項1から3いずれか1項記載の組成物。
- 前記コルチコステロイドがグルココルチコイドである、請求項4記載の組成物。
- 前記グルココルチコイドが、デキサメタゾン、ブデソニド、ベタメタゾン、トリアムシノロン、フルオコルトロン、メチルプレドニゾロン、デフラザコート、プレドニゾロン、プレドニゾン、クロプレドノール、コルチゾン、ヒドロコルチゾン、フルオコルチン、クロコルトロン、クロベタゾン、アルクロメタゾン、フルメタゾン、フルオプレドニデン、フルオランドレノロン、プロドニカルベート、モメタゾン、メチルプレドニゾロン、フルチカゾン、ハロメタゾン、フルオシノロン、ジフロラゾン、デスオキシメタゾン、フルオシノニド、フルドロコルチゾン、デフラザコート、リメキソロン、クロプレドノール、アムシノニド、ハルシノニド、ジフルコルトロン、クロベタゾール、もしくはこれらの化合物の内の1つの塩、エステル、アミド、溶媒和物または水和物である、請求項5記載の組成物。
- 吸入可能な組成物である、請求項1から6いずれか1項記載の組成物。
- 肺疾患の予防および/または治療に適用するための組成物の配合剤であって、
・ エクトイン、ヒドロキシエクトインおよび/またはそれら化合物の塩を含む第1の組成物、および
・ コルチコステロイドを含む第2の組成物、
を少なくとも含み、
前記肺疾患が、浮遊粒子状物質の直接の影響に起因しない慢性閉塞性肺疾患、ARDS、嚢胞性線維症、肺線維症、珪肺症、またはサルコイドーシスであり、
前記組成物が短期間で投与するために提供される、配合剤。
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DE4342560A1 (de) * | 1993-12-14 | 1995-06-22 | Marbert Gmbh | Ectoin und Ectoinderivate als Feuchtigkeitsspender in Kosmetikprodukten |
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IN2014CN02458A (ja) | 2015-08-07 |
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ES2657907T3 (es) | 2018-03-07 |
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