JPH0788302B2 - Anti-cancer drug - Google Patents

Anti-cancer drug

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Publication number
JPH0788302B2
JPH0788302B2 JP20175086A JP20175086A JPH0788302B2 JP H0788302 B2 JPH0788302 B2 JP H0788302B2 JP 20175086 A JP20175086 A JP 20175086A JP 20175086 A JP20175086 A JP 20175086A JP H0788302 B2 JPH0788302 B2 JP H0788302B2
Authority
JP
Japan
Prior art keywords
epoxy
cells
present
octadecenoic acid
leukotoxin
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.)
Expired - Lifetime
Application number
JP20175086A
Other languages
Japanese (ja)
Other versions
JPS6360928A (en
Inventor
高将 小澤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eisai Co Ltd
Original Assignee
Eisai Co Ltd
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Filing date
Publication date
Application filed by Eisai Co Ltd filed Critical Eisai Co Ltd
Priority to JP20175086A priority Critical patent/JPH0788302B2/en
Publication of JPS6360928A publication Critical patent/JPS6360928A/en
Publication of JPH0788302B2 publication Critical patent/JPH0788302B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【発明の詳細な説明】 (1) 産業上の利用分野 本発明は9,10−エポキシ−12−オクタデセン酸または1
2,13−エポキシ−9−オクタデセン酸あるいはこれらの
塩を有効成分として含有する抗癌剤に関する。従って本
発明は癌治療のための医薬品の分野において利用される
用途発明である。
DETAILED DESCRIPTION OF THE INVENTION (1) Field of Industrial Application The present invention relates to 9,10-epoxy-12-octadecenoic acid or 1
The present invention relates to an anticancer agent containing 2,13-epoxy-9-octadecenoic acid or a salt thereof as an active ingredient. Therefore, the present invention is a use invention utilized in the field of pharmaceuticals for treating cancer.

(2) 従来知見 深い熱傷を負った患者が初期ショックおよび感染から恢
復したにもかかわらず,受傷後1〜2週間で心拍出量の
低下,呼吸不全,排水腫が発現し,アドレナリンに対す
る反応が低下し,最後は心循環血流低下に伴う虚血性不
整脈を誘発して死亡への転機をとる例が多い。こうした
late deathsを説明するために1970年の初めから熱傷に
伴って内因性的に生成される毒素,すなわち熱傷毒素の
存在が想定されるようになり,ヒトや動物の熱傷皮膚や
血清からさまざまな純度や毒性をもつ分画が報告されて
いる。本発明者もこの毒素を追求し,その結果,毒素の
化学構造は遊離脂肪酸,とくにリノール酸のエポキサイ
ドであることを決定することに成功した。さらに動物実
験によってこの毒素は心拍出量を減少させ,心不全の一
般的症状をもたらし,動物を死亡させることも観察する
ことができた。さらに純酸素呼吸を行わしめたラットは
熱傷時のlate deathと同様な症状によって実験開始後60
〜72時間で死亡することも観察された。またこうした実
験ラットの肺胞洗浄液中には実験開始後48時間からロイ
コトルエンB4が急増し,多核白血球の遊出が著増すると
ともに,熱傷時に見られた毒素が検出され,しかもこの
毒素は遊出した好中球によってリノール酸から生合成さ
れることも確認された。これらの毒素はヒトおよびイヌ
の血中の好中球やモルモット腹腔内好中球においてリノ
ール酸を基質として生合成されるところから,本発明者
はロイコトキシンと命名している。ガスクロマト質量分
析および核磁気共鳴,さらにオゾン分解による分解産物
の同定からロイコトキシンはリノール酸の過酸化物,す
なわち9,10−エポキシ−12−オクタデセン酸であること
が判明した。また,生合成産物中にはロイコトキシンの
構造異性体である12,13−エポキシ−9−オクタデセン
酸が検出された。さらにまた当該ロイコトキシンについ
ては次のような事実が判明している。ネズミ肝ミトコン
ドリアを標品としてその呼吸速度呼吸調節比(RCI)を
測定すると,ロイコトキシンは10-6MでRCIを低下させ,1
0-5MでATP生成を完全に抑制し,同時に呼吸速度を促進
させるが,10-4Mでは阻害するという二相性の効果を持
つ。これはアメリカでかつてやせ薬として使用され,心
毒性のために使用禁止となった脂溶性弱酸の一つである
2,4−ジニトロフェノールの脱共後作用と相似してい
る。犬を使って,心拍出量,環血流量を測定してみると
ロイコトキシンは用量依存性に心拍出量,血圧を低下さ
せる。すなわち心原性ショックの状態となり動物は死に
至る。またロイコトキシンは平滑筋弛緩作用を示し,こ
のことがロイコトキシンを投与した実験動物で強い肺水
腫を引きおこす原因であろうと考えられている。
(2) Conventional findings Although a patient with deep burns recovered from initial shock and infection, a decrease in cardiac output, respiratory failure, and drainage edema occurred 1 to 2 weeks after the injury, and a response to adrenaline. In the end, there are many cases in which ischemic arrhythmia that accompanies a decrease in cardiovascular blood flow is induced to cause death. Like this
In order to explain late deaths, the existence of a toxin endogenously produced with burns, that is, a burn toxin, was assumed from the beginning of 1970, and various purities were obtained from burned skin and serum of humans and animals. Fractions with toxicity have been reported. The present inventors also pursued this toxin, and as a result, succeeded in determining that the chemical structure of the toxin was a free fatty acid, especially an epoxide of linoleic acid. Furthermore, in animal studies it was also possible to observe that this toxin reduces cardiac output, leads to the general symptoms of heart failure and kills animals. In addition, rats that had performed pure oxygen breathing had the same symptoms as late death during burns, and thus 60
Death was also observed at ~ 72 hours. In the alveolar lavage fluid of these experimental rats, leukotoluene B 4 increased sharply from the start of the experiment 48 hours later, the translocation of polynuclear leukocytes was remarkably increased, and the toxin observed during burn injury was detected. It was also confirmed that it was biosynthesized from linoleic acid by the transmigrated neutrophils. Since the toxins are biosynthesized in human and dog blood neutrophils and guinea pig intraperitoneal neutrophils using linoleic acid as a substrate, the present inventor has named it leukotoxin. Gas chromatographic mass spectrometry, nuclear magnetic resonance, and the identification of decomposition products by ozonolysis revealed that leukotoxin was a peroxide of linoleic acid, that is, 9,10-epoxy-12-octadecenoic acid. In addition, 12,13-epoxy-9-octadecenoic acid, which is a structural isomer of leukotoxin, was detected in the biosynthesis product. Furthermore, the following facts have been found about the leukotoxin. When the respiratory rate respiratory control ratio (RCI) of rat liver mitochondria was measured, leukotoxin decreased RCI at 10 -6 M, and
It has a biphasic effect of completely suppressing ATP production at 0 -5 M and at the same time promoting respiration rate, but inhibiting it at 10 -4 M. It is one of the fat-soluble weak acids that was once used as a slimming drug in the United States and was banned due to cardiotoxicity.
It is similar to the post-decoupling effect of 2,4-dinitrophenol. Leukotoxin dose-dependently decreases cardiac output and blood pressure when measuring cardiac output and peripheral blood flow in dogs. That is, a cardiogenic shock occurs and the animal is dead. Leukotoxin also exhibits a smooth muscle relaxing action, which is considered to be the cause of strong pulmonary edema in experimental animals treated with leukotoxin.

以下に列挙する文献a)〜f)は以上の従来知見のさら
に詳細な説明のために参考とされる。
References a) to f) listed below are referred to for further detailed explanation of the above conventional findings.

a) ワイベル,イー.アール.(1971)アーク.イン
ターン.メデ.128,54−56(Weibel,E.R.(1971)Arch.I
ntern.Med.128,54−56) b) クラポ,ジェー.ディー.アンドディールニイ,
ディー・エフ.(1974)アム.ジェー.フィジオール.2
26,1401−1407(Crapo,J.D.and Tierney,D.F.(1974)A
m.J.Physiol.226,1401−1407) c) コーンブラスト,ディー.ジェー.アンド メイ
ビス,アーム.ディー.(1980)リピッズ15,314−322
(Kornbrust,D.J.and Mavis,R.D.(1980)Lipids15,314
−322) d) クラポ,ジュー.ディー.エ.タール.(1980)
アム.レブ.レスピル.ディス.122,123−143(Crapo,
J.D.et al.(1980)Am.Rev.Respir.Dis.122,123−143) e) タニグチ,エッチ.エ.タール.(1985)アム.
レブ.レスピル.ディス.131,A385(サプル.)〔Tanig
uchi,H.et.al.(1985)Am.Rev.Respir.Dis.131,A385(S
uppl.)〕 f) オザワ,ティー.エ.タール.(1986)バイオケ
ム.バイオフィジ.リサ.コムュニケーションズ134,10
71−1078(Ozawa,T.et.al.(1986)Biochem.Biophys.Re
s.Communications134,1071−1078) (3) 問題点と解決手段 前記した従来知見によって明らかなごとくロイコトキシ
ンは広汎な熱傷や炎症の際に好中球によって生産される
毒素であるが,本発明者は当該毒素を逆に医薬として利
用することを意図し,どのような疾患に適用することが
できるかを問題点として種々の検討を行った。その結果
意外にも癌細胞の殺滅に対して有効であることを知り,
本発明を完成するに至った。すなわち本発明の目的は抗
癌剤の提供であり,本発明は該目的のために本発明に係
るロイコトキシンまたはその構造異性体を有効成分とし
て含有する構成を開示する。
a) Weibel, E. R. (1971) Ark. Intern. Med. 128, 54-56 (Weibel, ER (1971) Arch.I
ntern.Med.128,54-56) b) Clapo, J. Dee. Anddirny,
D.F. (1974) Am. J. Fidiol. 2
26,1401-1407 (Crapo, JDand Tierney, DF (1974) A
mJPhysiol.226,1401-1407) c) Corn blast, Dee. J. And Mavis, Arm. Dee. (1980) Lipids 15,314−322
(Kornbrust, DJand Mavis, RD (1980) Lipids15,314
-322) d) Clapo, Jew. Dee. D. tar. (1980)
Am. Rev. Respill. This 122.123-143 (Crapo,
JD et al. (1980) Am. Rev. Respir. Dis.122, 123-143) e) Taniguchi, Etch. D. tar. (1985) Am.
Rev. Respill. This. 131, A385 (Supple.) [Tanig
uchi, H.et.al. (1985) Am.Rev.Respir.Dis.131, A385 (S
uppl.)] f) Ozawa, tea. D. tar. (1986) Biochem. Biophysi. Lisa. Communications 134,10
71-1078 (Ozawa, T.et.al. (1986) Biochem.Biophys.Re
s.Communications134,1071-1078) (3) Problems and Solutions As apparent from the above-mentioned conventional findings, leukotoxin is a toxin produced by neutrophils during widespread burns and inflammation. Intended to use the toxin as a drug on the contrary, and conducted various studies on what kind of disease it could be applied to. As a result, I was surprised to find that it was effective in killing cancer cells,
The present invention has been completed. That is, the object of the present invention is to provide an anti-cancer agent, and the present invention discloses a composition containing the leukotoxin according to the present invention or a structural isomer thereof as an active ingredient for the purpose.

以下に本発明を詳細に説明する。The present invention will be described in detail below.

本発明に係るロイコトキシンとは式 によって示される9,10−エポキシ−12−オクタデセン酸
であり,またその構造異性体は式 によって示される12,13−エポキシ−9−オクタデセン
酸である。
The leukotoxin according to the present invention has the formula 9,10-epoxy-12-octadecenoic acid represented by 12,13-epoxy-9-octadecenoic acid represented by

本発明に係るロイコトキシンまたはその構造異性体を有
効成分として含有する本発明抗癌剤は後記実験例によっ
て示されるごとく主として癌細胞に対する局所的な直接
投与において有効であるが,癌細胞に対するモノクロナ
ール抗体を用意し,これを利用してミサイル療法のため
の抗癌剤とすることも期待される。
The anti-cancer agent of the present invention containing the leukotoxin or the structural isomer thereof according to the present invention as an active ingredient is effective mainly in local direct administration to cancer cells as shown by the experimental examples described below, It is expected to be prepared and used as an anticancer drug for missile therapy.

本発明において対象となる癌細胞については特に限定は
ない。後記実験例によって示されるごとく各種の癌細胞
に対して有効であることが判明しているので,本発明抗
癌剤は癌疾患一般に広く適用することができる。
The target cancer cells in the present invention are not particularly limited. Since it has been proved to be effective against various cancer cells as shown in the experimental examples described below, the anticancer agent of the present invention can be widely applied to cancer diseases in general.

また後記実験例によって示されるごとくロイコトキシン
のED50は25〜50μg/mlの範囲に見出されるので,本発明
抗癌剤の用量は当該範囲に合わせて適宜に選択して決定
すればよい。本発明抗癌剤の製剤としての形態は投与の
方法によって適宜に選択して決定すればよいが,例えば
局所への直接投与を目的としてそのための注射剤とすれ
ばよい。各形態を形成させるために必要な賦形剤,添加
剤等は常法により適宜に選択して使用すればよい。
Further, since the ED 50 of leukotoxin is found in the range of 25 to 50 μg / ml as shown in the experimental examples described below, the dose of the anticancer agent of the present invention may be appropriately selected and determined according to the range. The form of the anticancer agent of the present invention as a formulation may be appropriately selected and determined depending on the administration method, and for example, an injection for the purpose of direct local administration may be used. Excipients, additives and the like necessary for forming each form may be appropriately selected and used by a conventional method.

なお,本発明に係るロイコトキシンまたはその構造異性
体においてそれぞれの塩が同様に抗癌効果を有すること
は容易に期待することのできる範囲のものである。従っ
てこれらの塩は本発明に含まれる。
It is within the range that it can be easily expected that each salt of the leukotoxin or the structural isomer thereof according to the present invention similarly has an anticancer effect. Therefore, these salts are included in the present invention.

(4) 実施例 以下に記載する実施例によって本発明をさらに具体的に
説明する。
(4) Examples The present invention will be described in more detail with reference to the examples described below.

実施例1 9,10−エポキシ−12−オクタデセン酸3mg,マンニトール
1gを注射用蒸溜水に加えて全量を100mlとし,1mlアンプ
ルに0.1mlずつ分注して凍結乾燥し,熔閉して本発明抗
癌剤とした。
Example 1 3,10-epoxy-12-octadecenoic acid 3 mg, mannitol
1 g was added to distilled water for injection so that the total amount was 100 ml, 0.1 ml was dispensed in 1 ml ampoules, freeze-dried, and sealed to obtain the anticancer agent of the present invention.

実施例2 9,10−エポキシ−12−オクタデセン酸3mgを日本薬局方
吸水軟膏基剤100gに配合し,本発明抗癌剤とした。
Example 2 3 mg of 9,10-epoxy-12-octadecenoic acid was mixed with 100 g of the water-absorbing ointment base of the Japanese Pharmacopoeia to give the anticancer agent of the present invention.

実施例3 実施例1において注射用蒸溜水の代わりに注射用0.001N
水酸化ナトリウム水溶液を使用した点を除いて実施例1
記載と同様に行い本発明抗癌剤とした。
Example 3 0.001 N for injection in place of distilled water for injection in Example 1
Example 1 except that an aqueous sodium hydroxide solution was used
The anticancer agent of the present invention was obtained in the same manner as described.

実施例4 実施例2において9,10−エポキシ−12−オクタデセン酸
の代わりに12,13−エポキシ−9−オクタデセン酸を使
用した点を除いて実施例2記載と同様に行い本発明抗癌
剤とした。
Example 4 The anticancer agent of the present invention was prepared in the same manner as in Example 2 except that 12,13-epoxy-9-octadecenoic acid was used in place of 9,10-epoxy-12-octadecenoic acid. .

(5) 作用および効果 以下の実験例によって本発明におけるロイコトキシンお
よびその構造異性体の作用および効果を説明する。
(5) Action and Effect The action and effect of leukotoxin and structural isomers thereof in the present invention will be explained by the following experimental examples.

実験例1 試料と方法 9,10−エポキシ−12−オクタデセン酸を検体としてDMSO
に溶解し,これをRPMI−1640培地(FCSを10%含有)で
希釈して検体濃度が12.5〜200μg/mlとなるように各種
の検体試料を用意した。別に対照試料として上記培地お
よび同培地にDMSOを添加した培地を用意した、RL♂1マ
ウス白血病細胞3×105cells/mlを各試料中で培養し,
トリパンブルー色素排除試験による生細胞数を経日的に
測定した。
Experimental Example 1 Sample and method DMSO using 9,10-epoxy-12-octadecenoic acid as a sample
Was dissolved in RPMI-1640 medium (containing 10% FCS), and various sample samples were prepared so that the sample concentration was 12.5 to 200 μg / ml. Separately, as a control sample, the above medium and a medium in which DMSO was added to the medium were prepared, and 3 × 10 5 cells / ml of RL♂1 mouse leukemia cells were cultured in each sample,
The number of viable cells by the trypan blue dye exclusion test was measured daily.

結 果 結果を図1に示す。図中,○印線はRPMI−1640培地の
み,□印線は同培地にDMSOを加えた培地についての結果
であり,●印線,△印線,×印線, は検体濃度がそれぞれ12.5,25,50,100,200μg/mlである
検体試料についての結果である。図1より検体の効果は
用量依存的であり,12.5〜50μg/mlでは培養後1日目ま
では細胞数の減少がみられるが,2日目からは分裂増殖し
てしまうのに対し,100μg/ml以上では全細胞が死滅する
のが判明する。
The results are shown in Figure 1. In the figure, the circles show the results for the RPMI-1640 medium only, the squares show the results for the medium in which DMSO was added, and the circles, triangles, crosses, and Are the results for sample samples with sample concentrations of 12.5, 25, 50, 100, and 200 μg / ml, respectively. From Fig. 1, the effect of the sample was dose-dependent, and at 12.5 to 50 μg / ml, the number of cells decreased until the 1st day after culturing, but from the 2nd day, the cells proliferated and proliferated. It is found that all cells are killed when the amount exceeds / ml.

実験例2 試料と方法 9,10−エポキシ−12−オクタデセン酸を0〜200μg/ml
の各種の濃度で含有するMEM培地(FCS10%含有,ペニシ
リン,ストルプトマイシン,グルタミン各含有)を用意
した。これらの培地にHela子宮頚部癌細胞,HEP−2喉頭
癌細胞,MG−63骨肉腫細胞,Chang liver肝細胞,FL−Amni
on羊膜細胞およびWISH羊膜細胞を検体試料として,また
ヒト正常2倍体細胞Flow2000(胎児肺由来)および同Fl
ow13000(胎児肝由来Fibroblast)を対照試料としてそ
れぞれ加え,CO2インキュベータ中で48時間培養し,生残
細胞をクリスタルバイオレット色素染色法により測定し
た。
Experimental Example 2 Sample and Method 9,10-epoxy-12-octadecenoic acid 0-200 μg / ml
MEM medium containing 10% of FCS (containing 10% FCS, containing penicillin, streptomycin, and glutamine) was prepared. Hela cervical cancer cells, HEP-2 laryngeal cancer cells, MG-63 osteosarcoma cells, Chang liver hepatocytes, FL-Amni
on amniotic cells and WISH amniotic cells as specimen samples, and human normal diploid cells Flow2000 (from fetal lung) and the same Fl
ow13000 (Fibroblast derived from fetal liver) was added as a control sample, and the cells were cultured in a CO 2 incubator for 48 hours, and the surviving cells were measured by the crystal violet dye staining method.

結 果 9,10−エポキシ−12−オクタデセン酸の濃度が0μg/ml
である培地中での生残細胞数を増殖率100%と定め,各
濃度培地での増殖率を求めた。結果を図2に示す。図
中,●印線,○印線,×印線,□印線,■印線,△印
線,▲印線,▽印線はそれぞれ,ヒト正常2倍体細胞Fl
ow2000,同13000,Hela子宮頚部癌細胞,HEP−2喉頭癌細
胞,MG−62骨肉腫細胞,Chang liver肝細胞,FL−Amnion羊
膜細胞,WISH羊膜細胞についての結果を示す。図2より
9,10−エポキシ−12−オクタデセン酸は正常細胞に対し
てばかりでなく,実験で使用した6株の人癌細胞のいず
れに対しても障害作用を有しており,そのED50は25〜50
μg/mlの範囲に見出されることが判明する。
Result The concentration of 9,10-epoxy-12-octadecenoic acid is 0 μg / ml
The number of surviving cells in the medium was defined as the growth rate of 100%, and the growth rate in each concentration medium was determined. The results are shown in Figure 2. In the figure, ● line, ○ line, × line, □ line, ■ line, △ line, ▲ line, and ▽ line represent human normal diploid cell Fl, respectively.
Results for ow2000, 13000, Hela cervical cancer cells, HEP-2 laryngeal cancer cells, MG-62 osteosarcoma cells, Chang liver hepatocytes, FL-Amnion amniotic cells, WISH amniotic cells are shown. From Figure 2
9,10-Epoxy-12-octadecenoic acid has a damaging effect not only on normal cells but also on all 6 human cancer cells used in the experiment, and its ED 50 is 25- 50
It turns out to be found in the μg / ml range.

実験例3 試料と方法 実験例2と試料と方法の項において9,10−エポキシ−12
−オクタデセン酸の代わりに12,13−エポキシ−9−オ
クタデセン酸を使用した点を除いて同項記載と同様に行
った。
Experimental Example 3 Sample and Method In the experimental example 2 and sample and method section, 9,10-epoxy-12 was used.
The same procedure as described in the above-mentioned section except that 12,13-epoxy-9-octadecenoic acid was used instead of octadecenoic acid.

結 果 12,13−エポキシ−9−オクタデセン酸の濃度が0μg/m
lである培地中での生残細胞数を増殖率100%と定め,各
濃度培地での増殖率を求めた。結果を図3に示す。図
中,●,○,×,□,■,△,▲,▽の各印線は図2に
おけると同じを示す。図3より12,13−エポキシ−9−
オクタデセン酸は正常細胞ばかりでなく,実験で使用し
た6株の人癌細胞のいずれに対しても障害作用を有して
おり,そのED50は25〜50μg/mlの範囲に見出されること
が判明する。
Result 12,13-Epoxy-9-octadecenoic acid concentration is 0μg / m
The number of surviving cells in the medium of 1 was defined as the growth rate of 100%, and the growth rate in each concentration medium was determined. The results are shown in Fig. 3. In the figure, ●, ○, ×, □, ■, △, ▲ and ▽ marks indicate the same as in Fig. 2. From Figure 3, 12,13-epoxy-9-
Octadecenoic acid has a damaging effect not only on normal cells but also on the 6 human cancer cells used in the experiment, and its ED 50 was found to be in the range of 25 to 50 μg / ml. To do.

【図面の簡単な説明】[Brief description of drawings]

図1は9,10−エポキシ−12−オクタデセン酸を含有する
あるいは含有しない各種の培地中におけるRL♂1マウス
白血病細胞の生残細胞数の経日変化を示すグラフであ
る。 図2はヒト正常細胞2株,ヒト癌細胞6株の各々につい
て培地中の9,10−エポキシ−12−オクタデセン酸の濃度
と増殖率との関係を示すグラフである。 図3はヒト正常細胞2株,ヒト癌細胞6株の各々につい
て培地中の12,13−エポキシ−9−オクタデセン酸の濃
度と増殖率との関係を示すグラフである。
FIG. 1 is a graph showing the daily changes in the number of surviving cells of RL♂1 mouse leukemia cells in various media containing or not containing 9,10-epoxy-12-octadecenoic acid. FIG. 2 is a graph showing the relationship between the concentration of 9,10-epoxy-12-octadecenoic acid in the medium and the growth rate for each of 2 normal human cell lines and 6 human cancer cell lines. FIG. 3 is a graph showing the relationship between the concentration of 12,13-epoxy-9-octadecenoic acid in the medium and the growth rate for each of two normal human cell lines and six human cancer cell lines.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】式 によって示される9,10−エポキシ−12−オクタデセン酸
または 式 によって示される12,13−エポキシ−9−オクタデセン
酸あるいはこれらの塩を有効成分として含有する抗癌剤
1. A formula 9,10-epoxy-12-octadecenoic acid represented by Anticancer agent containing 12,13-epoxy-9-octadecenoic acid or a salt thereof as an active ingredient
JP20175086A 1986-08-29 1986-08-29 Anti-cancer drug Expired - Lifetime JPH0788302B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20175086A JPH0788302B2 (en) 1986-08-29 1986-08-29 Anti-cancer drug

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20175086A JPH0788302B2 (en) 1986-08-29 1986-08-29 Anti-cancer drug

Publications (2)

Publication Number Publication Date
JPS6360928A JPS6360928A (en) 1988-03-17
JPH0788302B2 true JPH0788302B2 (en) 1995-09-27

Family

ID=16446317

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20175086A Expired - Lifetime JPH0788302B2 (en) 1986-08-29 1986-08-29 Anti-cancer drug

Country Status (1)

Country Link
JP (1) JPH0788302B2 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3066999B2 (en) * 1992-07-10 2000-07-17 ソニー株式会社 Flux for soldering
WO2013187363A1 (en) * 2012-06-11 2013-12-19 千住金属工業株式会社 Flux composition, liquid flux, resin flux cored solder, and solder paste

Also Published As

Publication number Publication date
JPS6360928A (en) 1988-03-17

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