KR20160081605A - Pharmaceutical composition for preventing or treating for Helicobacter pylori infectious diseases - Google Patents

Abstract

The present invention relates to a pharmaceutical composition and a quasi-drug composition for preventing or treating bacterial infectious diseases containing parthenolide (PTL), diphenyleneiodonium chloride (DPI), or pharmaceutically acceptable salts thereof as an active ingredient, a kit for preventing or treating bacterial infectious diseases containing the composition, and a method for treating bacterial infectious diseases using the composition. The PTL or the DPI provided in the present invention has antibacterial activity against Helicobacter pylori (H. pylori), which is resistant to antibiotics, thereby being able to be widely used in the development of a medicine for diseases caused by H. pylori infection.

Description

[0001] The present invention relates to a pharmaceutical composition for preventing or treating Helicobacter pylori infectious diseases,

The present invention relates to a pharmaceutical composition for preventing or treating Helicobacter pylori infection. More particularly, the present invention relates to a pharmaceutical composition for preventing or treating Helicobacter pylori infection. More particularly, the present invention relates to a pharmaceutical composition comprising PTL (parthenolide), DPI (diphenyleneiodonium chloride) A pharmaceutical composition for the prevention or treatment of infectious diseases, a composition for quasi-drugs, a kit for preventing or treating bacterial infectious diseases comprising the composition, and a method for treating a bacterial infection using the composition.

Helicobacter pylori was discovered by Marshall and Warren in Australia in 1983 and was diagnosed as Gram negative bloody bacilli from gastric mucosal biopsy breakfast in patients with gastritis and gastric ulcers and was diagnosed with type B chronic gastritis and gastroduodenal ulcer And is known to cause gastric cancer. The Helicobacter pylori secretes urease, an urease, and hydrolyzes elements in the gastric juice to form ammonia. The ammonia increases the pH in the gastric juice, damages the gastric mucosal layer, and ammonia itself suppresses the oxygen consumption of the gastric mucosal layer cells and the ATP production of mitochondria. Ultimately, ammonia forms monochloroamine and forms active oxygen species Therefore, it is known that it causes cellular damage, causing chronic inflammation, and furthermore, DNA damage, thereby accelerating the development of cancer. Accordingly, studies have been actively conducted to develop a method for preventing or treating gastric diseases by sterilizing the Helicobacter pylori.

For example, WO 1995/027704 discloses a compound for treating Helicobacter-related diseases, WO 1998/043478 discloses a vaccine composition capable of preventing Helicobacter-related diseases, Korean Patent No. 855097 discloses Helicobacter pylori N-acetyl-N-cysteine having a urease activity inhibitory activity, a health functional food containing the same, and an ammonia production inhibitor. However, when these antibiotics are used, a mutant strain having resistance to an antibiotic is generated, and the efficiency of eradication of Helicobacter pylori by antibiotics is lowered. Therefore, it is possible to provide a method for producing a mutant strain of Helicobacter pylori Development of pharmaceuticals is required.

Under these circumstances, the inventors of the present invention have made extensive efforts to develop a formulation capable of exhibiting antibacterial activity against Helicobacter pylori mutants exhibiting resistance to conventional antibiotics. As a result, PTL (parthenolide) or DPI (diphenyleneiodonium chloride) The inventors of the present invention confirmed that it is possible to exhibit antimicrobial activity against the Helicobacter pylori mutants having resistance against E. coli.

It is an object of the present invention to provide a pharmaceutical composition for preventing or treating bacterial infections comprising PTL (parthenolide), DPI (diphenyleneiodonium chloride) or a pharmaceutically acceptable salt thereof as an active ingredient.

Another object of the present invention is to provide a quasi-drug composition for the prevention or treatment of bacterial infections comprising PTL, DPI or a pharmaceutically acceptable salt thereof as an active ingredient.

It is still another object of the present invention to provide a kit for preventing or treating bacterial infections comprising the composition.

It is another object of the present invention to provide a method for treating a bacterial infection using the composition.

The present inventors have now found that Helicobacter pylori , H. pylori ) in order to develop an agent capable of treating an infectious disease caused by H. pylori mutants showing resistance to an antibiotic used in the treatment of infectious diseases of H. pylori and H. pylori strains, an effective ingredient is screened from a compound library composed of 1200 kinds of compounds . As a result, 82 kinds of compounds showing antimicrobial activity against H. pylori were firstly screened. Among the above-mentioned selected compounds, there are no known side effects such as a known compound known to have antimicrobial activity or antifungal activity, an antimicrobial activity against H. pylori strains except for a compound capable of affecting the nervous system or cardiovascular system of a living body As a result of selection of the compounds expected to be PTL (partialhenolide) and DPI (diphenyleneiodonium chloride), PTL and DPI were not known to have antimicrobial activity against bacteria. The H. pylori mutants showing resistance or susceptibility to various antibiotics currently used for the treatment of H. pylori infection were treated with PTL or DPI and their antibacterial activities were measured . pylori , and the antibacterial activity against all kinds of H. pylori was confirmed, although PTL did not reach DPI. As a result of measuring the antimicrobial activity of PTL or DPI on aerobic bacteria, PTL did not exhibit any antimicrobial activity against common aerobic bacteria, but DPI showed strong antimicrobial activity against aerobic bacteria.

Therefore, PTL or DPI can be used as an active ingredient of a pharmaceutical composition capable of preventing or treating bacterial infections, and in particular, can be used as an effective ingredient of a pharmaceutical composition capable of specifically preventing or treating H. pylori infection Respectively. Such antimicrobial activity of PTL or DPI has not been known until now and has been first identified by the present inventor.

In order to achieve the above object, the present invention provides a pharmaceutical composition for preventing or treating bacterial infections comprising PTL (parthenolide), DPI (diphenyleneiodonium chloride) or a pharmaceutically acceptable salt thereof as an active ingredient to provide.

The term "DPI (diphenyleneiodonium chloride)" of the present invention means a compound represented by the following formula (1). The compound may be isolated from a natural source, but is not limited thereto. The compound may be chemically synthesized by a method known in the art, or a commercially available substance may be used.

The term "PTL (parthenolide)" of the present invention means a compound represented by the following formula (2). The compound may be isolated from a natural source, but is not limited thereto. The compound may be chemically synthesized by a method known in the art, or a commercially available substance may be used.

The term "pharmaceutically acceptable salt " of the present invention means salts in which the cation and the anion are pharmaceutically usable among the salts in which they are bound by an electrostatic attraction. Usually, the salt is a metal salt, an organic base, Salts with inorganic acids, salts with organic acids, salts with basic or acidic amino acids, and the like. For example, the metal salt may be an alkali metal salt (sodium salt, potassium salt, etc.), an alkaline earth metal salt (calcium salt, magnesium salt, barium salt, etc.), an aluminum salt and the like; Examples of salts with organic bases include salts with organic bases such as triethylamine, pyridine, picoline, 2,6-lutidine, ethanolamine, diethanolamine, triethanolamine, cyclohexylamine, dicyclohexylamine, N, And the like; The salt with inorganic acid may be a salt with hydrochloric acid, hydrobromic acid, nitric acid, sulfuric acid, phosphoric acid and the like; Salts with organic acids may be salts with formic acid, acetic acid, trifluoroacetic acid, phthalic acid, fumaric acid, oxalic acid, tartaric acid, maleic acid, citric acid, succinic acid, methanesulfonic acid, benzenesulfonic acid, p-toluenesulfonic acid and the like; Salts with basic amino acids may be salts with arginine, lysine, ornithine and the like; The salt with an acidic amino acid may be a salt with aspartic acid, glutamic acid and the like.

The PTL or DPI provided by the present invention can be used as an effective ingredient of a pharmaceutical composition for preventing or treating various bacterial infectious diseases since it exhibits safe and excellent antimicrobial activity. Herein, the bacterium causing the bacterial infection is not particularly limited, but may be an aerobic bacterium such as a Grand-positive aerobic bacterium or a gram-negative aerobic bacterium, and preferably a bacterium belonging to Staphylococcus sp., Enterococcus sp. Gram-positive aerobic bacteria such as Enterococcus sp .; Or Helicobacter sp., Escherichia sp., Pseudomonas sp., Acinetobacter sp., Salmonella sp., Salmonella sp. Enterobacter spp (Enterobacter sp.) and gram-negative aerobic bacteria, such as may be, more preferably, Helicobacter pylori (Helicobater pylori), Staphylococcus aureus (Staphylococcus aureus ), Enterococcus faecalis faecalis), epidermidis (Staphylococcus epidermidis) Staphylococcus, Escherichia coli (Escherichia coli), Pseudomonas ah rugi Labor (Pseudomonas aeruginosa), Acinetobacter baumannii (Acinetobacter baumannii ), Salmonella enteritis ( Salmonella enteritidis), Salmonella typhimurium (Salmonella typhimurium ), Enterobacter cloacae ), and most preferably Helicobacter pylori.

According to one embodiment of the present invention, a compound library having 1200 kinds of compounds was used to screen a compound showing antimicrobial activity against H. pylori . As a result, a total of 82 compounds were selected (Example 1-1 ) And PTL (parthenolide) or DPI (diphenyleneiodonium chloride), which have antimicrobial activity and safety, were finally selected from the 82 compounds through the sensitivity test (Table 1). The PTL or DPI showed excellent antimicrobial activity against all kinds of H. pylori mutants showing resistance or susceptibility to various antibiotics (Table 2), and DPI (Table 3). The antimicrobial activity of H. pylori was also excellent for various aerobic bacteria.

The composition of the present invention may be prepared in the form of a pharmaceutical composition for the prophylaxis or treatment of inflammatory diseases, which further comprises an appropriate carrier, excipient or diluent conventionally used in the production of a pharmaceutical composition. Specifically, the pharmaceutical composition may be formulated in the form of powders, granules, tablets, capsules, suspensions, emulsions, syrups, aerosols and the like, oral preparations, suppositories and sterilized injection solutions according to a conventional method . In the present invention, the carrier, excipient and diluent which may be contained in the pharmaceutical composition include lactose, dextrose, sucrose, sorbitol, mannitol, xylitol, erythritol, maltitol, starch, acacia rubber, alginate, gelatin, calcium phosphate , Calcium silicate, cellulose, methylcellulose, microcrystalline cellulose, polyvinylpyrrolidone, water, methylhydroxybenzoate, propylhydroxybenzoate, talc, magnesium stearate and mineral oil. In the case of formulation, a diluent or excipient such as a filler, an extender, a binder, a wetting agent, a disintegrant, or a surfactant is usually used. Solid formulations for oral administration include tablets, pills, powders, granules, capsules and the like, which may contain at least one excipient such as starch, calcium carbonate, Sucrose, lactose, gelatin and the like. In addition to simple excipients, lubricants such as magnesium stearate and talc are also used. Liquid preparations for oral use may include various excipients such as wetting agents, sweetening agents, fragrances, preservatives, etc. in addition to water and liquid paraffin, which are simple diluents commonly used in suspension agents, solutions, emulsions and syrups have. Formulations for parenteral administration include sterilized aqueous solutions, non-aqueous solutions, suspensions, emulsions, freeze-dried preparations, and suppositories. Examples of the suspending agent include propylene glycol, polyethylene glycol, vegetable oil such as olive oil, injectable ester such as ethyl oleate, and the like. Examples of the suppository base include witepsol, macrogol, tween 61, cacao butter, laurin, glycerogelatin and the like.

The content of the PTL or DPI contained in the pharmaceutical composition of the present invention is not particularly limited, but may be in the range of 0.0001 to 50% by weight, more preferably 0.01 to 20% by weight, based on the total weight of the final composition.

The pharmaceutical composition of the present invention can be administered in a pharmaceutically effective amount. The term "pharmaceutically effective amount " of the present invention means a therapeutic or prophylactic treatment of a disease at a reasonable benefit / risk ratio applicable to medical treatment or prevention And the effective dose level refers to the level of the disease to be treated, the severity of the disease, the activity of the drug, the age, body weight, health, sex, sensitivity of the patient to the drug, Duration, duration of administration, factors involved in combination with or contemporaneously with the composition of the present invention, and other factors well known in the medical arts. The pharmaceutical composition of the present invention may be administered alone or in combination with a known immunotherapeutic agent. It is important to take into account all of the above factors and administer an amount that will achieve the maximum effect in the least amount without side effects.

The dosage of the pharmaceutical composition of the present invention can be determined by those skilled in the art in consideration of the purpose of use, the degree of addiction to the disease, the age, body weight, sex, history, or kind of the substance used as the active ingredient. For example, the pharmaceutical composition of the present invention may be administered at about 0.1 ng to about 100 mg / kg, preferably 1 ng to about 10 mg / kg, per adult, and the frequency of administration of the composition of the present invention is particularly It is not limited, but it can be administered once a day or divided into several doses. The dose is not intended to limit the scope of the invention in any way.

In another aspect of the present invention, there is provided a quasi-drug composition for preventing or treating bacterial infections comprising PTL, DPI, or a pharmaceutically acceptable salt thereof as an active ingredient.

The term "quasi-drug product" used in the present invention means products that are less active than drugs, among the products used for diagnosing, treating, improving, alleviating, treating or preventing diseases of human or animal. For example, The quasi-quasi-drug means a product that is used for the treatment of diseases of humans and animals, except for the products used for medicines, which are slightly or not directly acting on the human body, , And sterilization and insecticides to prevent infectious diseases. The type and formulations of the quasi-drug composition of the present invention are not particularly limited, but may be disinfectant cleaner, shower foam, gagrin, wet tissue, detergent soap, hand wash, humidifier filler, mask, ointment or filter filler.

As another embodiment for achieving the above object, the present invention provides a kit for preventing or treating bacterial infections comprising the composition.

The kit of the present invention can be used to prevent or treat a bacterial infection using PTL or DPI provided by the present invention using the above composition. As a specific example, the kit provided in the present invention may be a kit containing essential elements necessary for administering the composition, which includes a syringe, a disinfectant, A disinfectant preparation, an ampoule containing the composition, and the like.

In another aspect of the present invention, the present invention provides a method for treating a bacterial infection, comprising administering the pharmaceutical composition to a subject other than a human suffering from a bacterial infection in a pharmaceutically effective amount.

The term "individual" of the present invention includes, but is not limited to, mammals, aquaculture, and the like that are susceptible to or susceptible to bacterial infections, do.

In the method for treating a bacterial infection according to the present invention, the bacteria to be treated are the same as those described above.

The route of administration of the pharmaceutical composition for preventing or treating bacterial infections of the present invention can be administered through any conventional route so long as it can reach the target tissue. The pharmaceutical composition of the present invention is not particularly limited, but may be administered by intraperitoneal administration, intravenous administration, intramuscular administration, subcutaneous administration, intradermal administration, oral administration, intranasal administration, intrapulmonary administration, rectal administration and the like ≪ / RTI > However, since the PTL or DPI may be denatured by gastric acid when orally administered, the oral composition should be formulated so as to coat the active agent or protect it from decomposition at the top. In addition, the composition may be administered by any device capable of transferring the active agent to the target cell.

Since PTL or DPI provided by the present invention exhibits antibacterial activity against H. pylori strains showing resistance to antibiotics, PTL or DPI can be widely used for the development of a therapeutic agent for H. pylori infection.

Hereinafter, the present invention will be described in more detail with reference to examples. However, these examples are for illustrative purposes only, and the scope of the present invention is not limited to these examples.

Example  One: H. pylori Of the antimicrobial active ingredient

Example  1-1: High-speed screening  Through analysis H. pylori Screening for antimicrobial candidate substances

First, H. pylori strain 26659 was inoculated into a selective medium containing Brucella agar and 7% decarboxylase blood, and cultured at 10% CO ₂ and 37 ° C for 72 hours.

Next, a compound library consisting of 1200 compounds of 2 mM dissolved in DMSO was diluted to obtain a 0.1 mM solution of the compound.

20 μl of the compound solution and 180 μl of the selection medium were dispensed into each well of a 96-well plate, and 10 μl of the cultured H. pylori 26659 culture medium was inoculated, followed by culturing at 10% CO ₂ and 37 ° C. for 72 hours . After cultivation was completed, 84 compounds without precipitated colonies were selected and considered as candidates showing antimicrobial activity against H. pylori .

Example  1-2: Through sensitivity test H. pylori Screening for antimicrobial candidate substances

84 kinds of compounds selected in Example 1-1 were diluted stepwise to obtain samples of sequential concentration and H. pylori was cultured in the obtained samples to inhibit the growth of H. pylori The concentrations of each compound were measured. The dilution was performed by mixing 100 μl of a mixture containing 180 μl of the medium and 20 μl of the compound and 100 μl of the medium and diluting the diluted solution twice with 100 μl of the diluted solution and 100 μl of the medium, Repeatedly. In addition, H. pylori 26659 strain was inoculated into each of the diluted samples, and cultured at 10% CO ₂ and 37 ° C for 72 hours. Then, colonies were confirmed in culture to determine the growth of H. pylori The minimum inhibitory concentrations (MICs) of each compound were measured. Compared with the above-mentioned compounds having excellent MICs, the web database was compared and analyzed, and 19 kinds of compounds except for the compounds which were conventionally used as antibiotics or which are presently used and anticancer drugs were secondly selected Table 1).

Characteristics and MICs of compounds exhibiting growth inhibitory effect on H. pylori Name of compound Molecular Weight Therapeutic efficacy MIC ([mu] g / ml) Niclosamide
Miconazole
Fendiline hydrochloride
Perhexiline maleate
Econazole nitrate
Pimozide
Diphenyleneiodonium chloride
Bepridil hydrochloride
GBR 12909 dihydrochloride
Ketoconazole
Idebenone
Artemisinin
Parthenolide
Itraconazole
Sulconazole nitrate
Auranofin
Rabeprazole Sodium
Fluspirilen
Tyloxapol 327.13
416.14
351.92
393.57
444.7
461.56
314.55
403.01
523.5
531.44
338.45
282.34
248.32
705.65
460.77
678.49
382.44
475.59
997.42 helminthic
Antifungal agent
Angina pectoris
Vasodilator
Antifungal agent
Mental disease treatment
Antioxidant
Angina pectoris
Antidepressant
Antifungal agent
Antioxidant
Malaria treatment
Inflammation treatment agent
Antifungal agent
Antifungal agent
Rheumatism
Ulcer treatment
Mental disease treatment
Release of mucolytic 0.8
2.1
3.5
3.9
2.2
2.3
<0.03
1.0
2.6
2.7
1.7
0.7
4.0
3.5
1.0
0.2
1.9
2.4
5.0

Among the above 19 compounds, antifungal agents (Miconazole, Econazole nitrate, Ketoconazole, Itraconazole and Sulconazole nitrate), psychiatric agents (Perhexiline maleate and Fluspyrilene), rheumatic agents (Auranofin) or antidepressants GBR 12909 dihydrochloride), six compounds (Niclosamide, Diphenyleneiodonium chloride, Idebenone, Parthenolide) except angiotensin converting enzyme inhibitor (Fendiline hydrochloride and Bepridil hydrochloride), malaria therapeutic agent (Artemisinin) or vasodilator (Pimozide) , Rabeprazole Sodium and Tyloxapol), which are the lowest MICs, and PTL (parthenolide), which has been used for a long time as a remedy for various diseases.

Example  2: H. pylori  For strain PTL  or DPI Analysis of Antimicrobial Activity

The antimicrobial activity of H. pylori strains or aerobic bacteria showing susceptibility or tolerance to drugs was analyzed using PTL or DPI selected in Example 1-2.

Example  2-1: indicating susceptibility or tolerance to the drug H. pylori  For strain PTL  or DPI Analysis of Antimicrobial Activity

Currently, resistance to one or more of the antibiotics used to treat H. pylori infection, clarithromycin (CAM), metronidazole (MTZ), levofloxacin (LFX) and amoxicillin (AMX) intended for display or or clinical isolates of the drug with respect to indicating the susceptibility of H. pylori strain four species identified as (H. pylori ATCC43504, H. pylori 26659, H. pylori J99 and H. pylori SS1) and 19 kinds of MIC values of PTL or DPI were measured and compared using the method of Example 1-2 above (Table 2).

Antibacterial activity of PTL or DPI on various H. pylori strains H. pylori strain Resistant drug MIC ([mu] g / ml) PTL DPI Reference strain ATCC43504
26659
J99
SS1 MTZ 2
4
8
8 <0.03
<0.03
<0.03
<0.03 Clinical isolate 09-103
09-77
09-92
09-06
09-34
09-36
09-26
09-35
09-100
07-7
07-18
09-60
09-104
03-3
07-27
07-61
07-105
09-23
09-120 CAM
CAM
CAM
MTZ
MTZ
MTZ
LFX
LFX
LFX
AMX
AMX
CAM + MTZ
CAM + MTZ
CAM + MTZ
CAM + AMX
CAM + AMX
CAM + AMX
CAM + MTZ + LFX
CAM + MTZ + AMX 2
4
8
8
8
8
8
4
8
4
8
8
4
4
4
8
8
8
8 <0.03
<0.03
<0.03
<0.03
<0.03
<0.03
<0.03
<0.03
<0.03
<0.03
<0.03
<0.03
<0.03
<0.03
<0.03
<0.03
<0.03
<0.03
<0.03

As shown in Table 2, the PTL showed an MIC value of 2 to 8 占 퐂 / ml for all H. pylori strains showing resistance or susceptibility to various antibiotics used for the treatment of H. pylori infection, and the DPI was 0.03 占 퐂 / ML. &Lt; / RTI &gt; Therefore, PTL or DPI showed a therapeutic effect against H. pylori infection, which is resistant to conventional antibiotics.

Example  2-2: For general aerobic bacteria PTL  or DPI Analysis of Antimicrobial Activity

The evaluator has confirmed from the results of Example 2-1, the PTL or DPI refers to the therapeutic effect also against infection of H. pylori strains showing a resistance to conventional antibiotics, the PTL or DPI is also relative to the general aerobic bacteria And to confirm the effectiveness of the same infectious disease treatment. Thus, gram-positive aerobic bacteria, Staphylococcus 29213 aureus 29213), Staphylococcus 33591 ( Staphylococcus aureus 33591), Enterococcus faecalis 29212 (Enterococcus faecalis 29212) and Staphylococcus epidermidis 12228 (Staphylococcus epidermidis 12228), a gram-negative aerobic bacteria, E. coli 25922 (Escherichia coli 25922), rugi Labor 27 853 Pseudomonas ah (Pseudomonas aeruginosa 27853), Acinetobacter 19606 ( Acinetobacter &lt; RTI ID = 0.0 &gt; baumannii 19606), Salmonella Entebbe utility disk 13076 (Salmonella enteritidis 13076), Salmonella typhimurium 13311 ( Salmonella typhimurium 13311) and Enterobacter 13049 the claw ACCA (Enterobacter cloacae 13049), the MIC values of the PTL or DPI and is, by using the method in Example 1-2 except for the use were measured and compared (Table 3).

Antibacterial activity of PTL or DPI against common aerobic bacteria Gram stain Strain MIC ([mu] g / ml) PTL DPI Gram-positive bacteria Staphylococcus aureus 29213
Staphylococcus aureus 33591
Enterococcus faecalis 29212
Staphylococcus epidermidis 12228 > 32
> 32
> 32
> 32 One
One
One
One Gram-negative bacteria Escherichia coli 25922
Pseudomonas aeruginosa 27853
Acinetobacter baumannii 19606
Salmonella enteritidis 13076
Salmonella typhimurium 13311
Enterobacter cloacae 13049 > 32
> 32
> 32
> 32
> 32
> 32 0.5
2
One
One
One
One

As shown in Table 3 above, PTL showed MIC values of 32 ㎍ / ml or more in all the test strains, indicating that it does not exhibit a particular antibacterial activity against aerobic bacteria in general, whereas DPI is all Gram-negative or Gram-positive It showed a MIC value of 0.5 to 2 g / ml on aerobic bacteria, and it was confirmed that it exhibited strong antimicrobial activity against aerobic bacteria.

These results suggest that PTL or DPI can be used for the treatment of H. pylori infection since H. pylori strains showing antibacterial activity against PTL or DPI are also antibiotic resistant. In addition, DPI has antimicrobial activity against H. aeruginosa as well as H. pylori , so it can be used for the treatment of general bacterial infections.

Claims (11)

A pharmaceutical composition for preventing or treating bacterial infections comprising PTL (parthenolide), DPI (diphenyleneiodonium chloride) or a pharmaceutically acceptable salt thereof as an active ingredient.
The method according to claim 1,
Wherein said PTL or DPI exhibits an antimicrobial activity against a Helicobacter pylori strain.
The method according to claim 1,
Wherein the DPI exhibits an antimicrobial activity against aerobic bacteria.
The method of claim 3,
Wherein the aerobic bacterium is a gram-positive aerobic bacterium or a gram-negative aerobic bacterium.
5. The method of claim 4,
Wherein the gram-positive aerobic bacterium is Staphylococcus sp. Or Enterococcus sp.
5. The method of claim 4,
The Gram-negative aerobic bacterium may be selected from the group consisting of Helicobacter sp., Escherichia sp., Pseudomonas sp., Acinetobacter sp., Salmonella sp. Salmonella sp.) Or Enterobacter sp.
A quasi-drug composition for preventing or treating bacterial infections comprising PTL (parthenolide), DPI (diphenyleneiodonium chloride) or a pharmaceutically acceptable salt thereof as an active ingredient.
A kit for the prevention or treatment of bacterial infections comprising the composition of any one of claims 1 to 7.
8. A method for treating a bacterial infection, comprising administering to a subject other than a human suffering from a bacterial infection, a pharmaceutically effective amount of the composition of any one of claims 1 to 7.
10. The method of claim 9,
Wherein the bacterial infection is a Helicobacter pylori infection.
A pharmaceutical composition for preventing or treating Helicobacter pylori infection comprising PTL (parthenolide), DPI (diphenyleneiodonium chloride) or a pharmaceutically acceptable salt thereof as an active ingredient.