WO2021112171A1 - 腸管細胞の炎症抑制剤 - Google Patents
腸管細胞の炎症抑制剤 Download PDFInfo
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- WO2021112171A1 WO2021112171A1 PCT/JP2020/045013 JP2020045013W WO2021112171A1 WO 2021112171 A1 WO2021112171 A1 WO 2021112171A1 JP 2020045013 W JP2020045013 W JP 2020045013W WO 2021112171 A1 WO2021112171 A1 WO 2021112171A1
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- cashew nut
- nut shell
- shell oil
- cardanol
- cardol
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K36/00—Medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicines
- A61K36/18—Magnoliophyta (angiosperms)
- A61K36/185—Magnoliopsida (dicotyledons)
- A61K36/22—Anacardiaceae (Sumac family), e.g. smoketree, sumac or poison oak
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/30—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms
- A23K10/37—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms from waste material
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K20/00—Accessory food factors for animal feeding-stuffs
- A23K20/10—Organic substances
- A23K20/111—Aromatic compounds
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K50/00—Feeding-stuffs specially adapted for particular animals
- A23K50/10—Feeding-stuffs specially adapted for particular animals for ruminants
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K50/00—Feeding-stuffs specially adapted for particular animals
- A23K50/30—Feeding-stuffs specially adapted for particular animals for swines
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K50/00—Feeding-stuffs specially adapted for particular animals
- A23K50/70—Feeding-stuffs specially adapted for particular animals for birds
- A23K50/75—Feeding-stuffs specially adapted for particular animals for birds for poultry
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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
- A61K31/045—Hydroxy compounds, e.g. alcohols; Salts thereof, e.g. alcoholates
- A61K31/05—Phenols
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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
- A61K31/60—Salicylic acid; Derivatives thereof
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/0012—Galenical forms characterised by the site of application
- A61K9/0053—Mouth and digestive tract, i.e. intraoral and peroral administration
- A61K9/0056—Mouth soluble or dispersible forms; Suckable, eatable, chewable coherent forms; Forms rapidly disintegrating in the mouth; Lozenges; Lollipops; Bite capsules; Baked products; Baits or other oral forms for animals
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P29/00—Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
Definitions
- the present invention relates to agents and feeds for inflaming intestinal cells of non-human animals such as ruminants, pigs and poultry, and methods for suppressing inflammation of intestinal cells of non-human animals using these.
- LPS lipopolysaccharide
- microbial viable agents such as Bacillus subtilis and Bifidobacterium are also used for livestock for the purpose of intestinal regulation effect.
- no natural product preparation has been confirmed to have an inhibitory effect on the secretion of inflammatory cytokines and a TJ (tight junction) repair effect on the intestinal tract.
- Patent Document 1 As the effects of cashew nut shell oil on livestock, the rumen fermentation improving effect (Patent Document 1), the bloating disease controlling effect (Patent Document 2), the coccidiosis controlling effect (Patent Document 3), the acidosis controlling effect (Patent Document 4), etc. are known. Has been done. However, so far, there is no knowledge about the suppression of intestinal inflammation in livestock by cashew nut shell oil.
- An object of the present invention is to provide a material for suppressing intestinal inflammation in non-human animals.
- cashew nut shell oil (hereinafter, may be abbreviated as CNSL or CNSE) has an effect of suppressing inflammation of intestinal cells.
- CNSL cashew nut shell oil
- CNSE cashew nut shell oil
- the present invention is as follows.
- a method for suppressing inflammation in intestinal cells of non-human animals which comprises administering cashew nut shell oil, heat-treated cashew nut shell oil, anacardic acid, cardanol and / or cardol to non-human animals.
- Suppresses inflammation of intestinal cells of non-human animals which comprises mixing cashew nut shell oil, heat-treated cashew nut shell oil, anacardic acid, cardanol and / or cardol with feed and administering to non-human animals.
- Non-human animals characterized in that cashew nut shell oil, heat-treated cashew nut shell oil, anacardic acid, cardanol and / or cardol are mixed with feed so as to be 5 ppm to 1000 ppm (weight) and administered to non-human animals.
- a method of suppressing inflammation of intestinal cells in animals [4] A method for suppressing inflammation of intestinal cells according to any one of [1] to [3], wherein the non-human animal is a mammal.
- [5] A method for suppressing inflammation of intestinal cells according to any one of [1] to [3], wherein the non-human animal is a poultry, a pig, or a ruminant.
- [6] A method for suppressing inflammation of intestinal cells according to any one of [1] to [3], wherein the non-human animal is a ruminant.
- [7] A method for suppressing inflammation of intestinal cells of non-human animals according to any one of [1] to [6], wherein cashew nut shell oil, heat-treated cashew nut shell oil, anacardic acid, cardanol and / or cardol is administered.
- the method is characterized by suppressing inflammation of intestinal cells of non-human animals by suppressing the production of inflammatory cytokines in intestinal cells.
- [8] The method of [7], wherein the inflammatory cytokine is any one or more of TNF ⁇ , IL-6, and MCP-1.
- a non-human animal intestinal inflammation inhibitor containing cashew nut shell oil, heat-treated cashew nut shell oil, anacardic acid, cardanol and / or cardol as active ingredients.
- the intestinal inflammation inhibitor according to [9] which contains 5 ppm to 1000 ppm (weight) of cashew nut shell oil, heat-treated cashew nut shell oil, anacardic acid, cardanol and / or cardol.
- the intestinal inflammation inhibitor according to [9] or [10] wherein the active ingredient is anacardic acid, cardol, and / or cardanol.
- An agent for suppressing the production of inflammatory cytokines in the intestinal cells of non-human animals which comprises cashew nut shell oil, heat-treated cashew nut shell oil, anacardic acid, cardanol and / or cardol as active ingredients.
- the agent for suppressing the production of inflammatory cytokines according to [12] which contains 5 ppm to 1000 ppm (weight) of cashew nut shell oil, heat-treated cashew nut shell oil, anacardic acid, cardanol and / or cardol.
- intestinal cells by administering an agent or feed containing cashew nut shell oil, heat-treated cashew nut shell oil, anacardic acid, cardanol, and / or cardol to ruminants and non-human animals such as pigs and poultry. It is possible to suppress the secretion of inflammatory cytokines secreted from, thereby suppressing the onset of inflammation and the exacerbation of symptoms in intestinal cells. As a result, the health condition of non-human animals such as livestock can be maintained, and the breeding efficiency can be improved. Since the substance is derived from a natural product and resistant bacteria are unlikely to appear, it is considered that side effects can be suppressed. It also has the advantage of acting at low doses and being highly safe.
- the effect of LPS stimulation on the increased expression of inflammatory cytokine genes was investigated.
- the vertical axis shows the relative expression level when only LPS stimulation is 1.
- the effect of LPS stimulation on increased secretion of MCP-1 was investigated.
- the intestinal cell inflammation inhibitor of the present invention is characterized by containing cashew nut shell oil (CNSL), heat-treated cashew nut shell oil, anacardic acid, cardanol and / or cardol as active ingredients.
- CNSL cashew nut shell oil
- Suppression of inflammation of intestinal cells includes suppressing inflammatory symptoms in intestinal cells or tissues, and suppressing production of inflammatory cytokines in intestinal cells. Suppression of inflammatory cytokine production includes not only suppression of inflammatory cytokine secretion but also suppression of inflammatory cytokine gene expression.
- examples of the inflammatory cytokine include MCP-1 (Monocyte chemoattractant protein-1), IL-6 (Interleukine-6) and TNF- ⁇ (Tumor necrosis factor- ⁇ ).
- MCP-1 Monocyte chemoattractant protein-1
- IL-6 Interleukine-6
- TNF- ⁇ Tumor necrosis factor- ⁇
- intestinal epithelial cells are preferable.
- the anti-inflammatory agent for intestinal cells of the present invention can also be used as an anti-inflammatory agent for the production of inflammatory cytokines in intestinal cells.
- the production amount of these inflammatory cytokines of the inflammatory cytokine production inhibitor is 90% or less, preferably 80% or less, more preferably 50% or less, as compared with the production amount of the control (when CNSL or the like is not added). It is preferable to reduce it.
- the suppression of the production of inflammatory cytokines it is preferable to suppress the production of inflammatory cytokines induced by the loading of inflammatory stimuli.
- the inflammatory stimulus include stimuli derived from bacteria such as LPS (lipopolysaccharide).
- the intestinal cell inflammation inhibitor and the intestinal cell inflammatory cytokine production inhibitor of the present invention can be suitably used for the prevention and treatment of diseases caused by intestinal cell inflammation.
- diseases include bacterial infections and inflammatory bowel diseases.
- Cashew nut shell oil is an oily liquid contained in the shell of the cashew nut tree (Anacardium occidentale L.).
- Cashew nut shell oil contains anacardic acid, cardanol, and cardol as its components. Anacardic acid is converted to cardanol by heat treatment, but cashew nut shell oil (heated cashew nut shell oil) in which only cardanol and cardol are obtained by heat treatment can also be used.
- Cashew nut shell oil (unheated) extracted by squeezing cashew nut shells contains 55-80% by weight of anacardic acid and cardanol, as described in J. Agric. Food Chem. 2001, 49, 2548-2551. 5 to 20% by mass and cardol 5 to 30% by mass.
- the heated cashew nut shell oil obtained by heat-treating the unheated cashew nut shell oil for example, 70 ° C. or higher, preferably 130 ° C. or higher
- the anacardic acid which is the main component of the unheated cashew nut shell oil
- cardanol is contained in an amount of 55 to 80% by mass
- cardol is contained in an amount of 5 to 30% by mass.
- Cashew nut shell oil can be obtained as vegetable oil extracted by squeezing cashew nut shells. It can also be obtained by carbonizing or solvent-extracting cashew nut shells. Further, for example, cashew nut shell oil can also be obtained by the method described in JP-A-8-231410. Commercially available cashew nut shell oil can also be used.
- the intestinal cell inflammation inhibitor of the present invention may contain anacardic acid, cardanol and / or cardol itself instead of cashew nut shell oil.
- anacardic acid examples include natural anacardic acid, synthetic anacardic acid, and derivatives thereof. Alternatively, a commercially available anacardic acid may be used. As described in JP-A-8-231410, anacardic acid is obtained by extracting cashew nut shells with an organic solvent and using, for example, silica gel column chromatography to obtain n-hexane and acetic acid. It can be obtained by elution by changing the ratio of the mixed solvent of ethyl and acetic acid (Japanese Patent Laid-Open No. 3-240721, JP-A-3-240716, etc.).
- cardanol examples include natural product cardanol, synthetic cardanol, and derivatives thereof.
- the cardanol used in the present invention can be obtained by decarboxylating anacardic acid, which is the main component of cashew nut shell oil.
- cardols examples include natural product cardols, synthetic cardols, and derivatives thereof.
- the cardol used in the present invention can be obtained by refining from cashew nut shell oil.
- the content of cashew nut shell oil, heat-treated cashew nut shell oil, anacardic acid, cardanol and / or cardol in the intestinal cell inflammation inhibitor or inflammatory cytokine production inhibitor of the present invention is 0.5 to 50 based on the total amount of the agent. 000 ppm by weight is preferable, 10,000 to 10,000 ppm by weight is more preferable, and 5 to 1000 ppm by weight is even more preferable.
- a stock solution of cashew nut shell oil, heat-treated cashew nut shell oil, anacardic acid, cardanol and / or cardol can be directly orally administered.
- the intestinal cell inflammation inhibitor of the present invention includes, for example, lactose, sucrose, D-mannitol, ⁇ -starch, starch, cornstarch, in addition to cashew nut shell oil, heat-treated cashew nut shell oil, anacardic acid, cardanol and / or cardol. It may contain components such as crystalline cellulose, cornstarch, silica gel, light anhydrous silicic acid and other excipients that can be used in feeds or pharmaceuticals.
- the intestinal cell inflammation inhibitor of the present invention contains ingredients effective for promoting the growth of ruminants, nutritional supplements, and storage stability. It may further contain an optional component such as a component that enhances the property and a coating material component.
- Such optional ingredients include feed ingredients and feed additives such as bran, alfalfa, and thymosy, food ingredients and food additives, pharmaceutical raw materials, and other supplement ingredients used in animal supplements (hereinafter referred to as supplements). And so on.
- viable agents such as Enterococcus bacteria, Bacillus bacteria, Bifizus bacteria; enzymes such as amylase and lipase; vitamins such as L-ascorbic acid, choline chloride, inositol, folic acid; potassium chloride, iron citrate, magnesium oxide, etc.
- Minerals such as phosphates, amino acids such as DL-alanine, DL-methionine, L-lysine; organic acids such as fumaric acid, butyric acid, lactic acid, acetic acid and salts thereof; ethoxyquin, dibutylhydroxytoluene, butylhydroxyanisole, ferula Antioxidants such as acids, vitamin C and vitamin E; Antifungal agents such as calcium propionate; Caking agents such as carboxylmethylcellulose (CMC), sodium caseinate and sodium polyacrylate; Etc.; dyes such as astaxanthin and cantaxanthin; flavoring agents such as various esters, ethers and ketones.
- the type of supplement and ingredients other than cashew nut shell oil, heat-treated cashew nut shell oil, anacardic acid, cardanol and / or cardol are not particularly limited.
- the intestinal cell inflammation inhibitor of the present invention may contain an oil absorbing agent such as magnesium oxide, stearate, talc, zeolite, diatomaceous earth and silica, and the oil absorbing agent is preferably in the form of particles.
- the oil absorbing agent is preferably an oil absorbing agent that adsorbs 50 to 300 g of oil per 100 g. Further, when the particle size exceeds 300 ⁇ m, the particles become coarse and separate, so that the particle size is preferably 2 to 300 ⁇ m.
- the preferred mass ratio of the oil absorbent to cashew nut shell oil (CNSL), heat-treated cashew nut shell oil, anacardic acid, cardanol and / or cardol is 100: 20-100: It is 180.
- the preferable mass ratio of the oil absorbent and the crushed cashew nut shell is 15: 100 to 60: 100.
- the dosage form of the intestinal cell inflammation inhibitor of the present invention is not particularly limited, and examples thereof include arbitrary forms such as liquid preparations, powders, solids, tablets, capsules, emulsions, pellets, tablets, and dressings. Powders, capsules, pellets and tablets are preferred.
- liquid agent cashew nut shell oil, heat-treated cashew nut shell oil, anacardic acid, cardanol and / or cardol may be used as they are, or cashew nut shell oil, heat-treated cashew nut shell oil, anacardic acid, cardanol and / or cardol may be used as ethanol.
- the above excipient can be added to cashew nut shell oil, heat-treated cashew nut shell oil, anacardic acid, cardanol and / or cardol to be powdered.
- the capsule, cashew nut shell oil, heat-treated cashew nut shell oil, anacardic acid, cardanol and / or cardol may be directly encapsulated, or the above-mentioned excipient or optional component may be added.
- the above-mentioned excipient may be added to cashew nut shell oil, heat-treated cashew nut shell oil, anacardic acid, cardanol and / or cardol, and granulated and pelletized.
- cashew nut shell oil, heat-treated cashew nut shell oil, anacardic acid, cardanol and / or cardol may be added with the above excipients, granulated and tableted.
- an oil absorbing agent such as silica is contained, it is preferably formulated as a powder, a tablet or a pellet.
- the intestinal cell inflammation inhibitor of the present invention is formulated by mixing cashew nut shell oil, heat-treated cashew nut shell oil, anacardic acid, cardanol and / or cardol, and optionally excipients or optional components. It can be manufactured by doing so.
- the above-mentioned crushed / crushed cashew nut shell or the cashew nut shell can be mixed with other arbitrary components as it is without any treatment to obtain the intestinal cell inflammation inhibitor of the present invention. ..
- the crushed / crushed product itself or the cashew nut shell itself can be used as an intestinal cell inflammation inhibitor without being mixed with other optional components.
- the feed of the present invention is characterized by containing cashew nut shell oil, heat-treated cashew nut shell oil, anacardic acid, cardanol and / or cardol.
- the content of cashew nut shell oil, heat-treated cashew nut shell oil, anacardic acid, cardanol and / or cardol in the feed of the present invention is preferably 0.5 to 50,000 ppm by weight based on the total amount of the dry substance of the feed. It is more preferably from ⁇ 10,000 ppm by weight, even more preferably from 5 to 100 ppm by weight.
- the feed of the present invention can be produced by adding cashew nut shell oil, heat-treated cashew nut shell oil, anacardic acid, cardanol and / or cardol or an intestinal cell inflammation inhibitor of the present invention containing the same to a feed component and mixing them. It can.
- a liquid carrier may be used to facilitate mixing, and the agent may be in a liquid or gel form.
- a fluid liquid such as water, vegetable oil, liquid animal oil, mineral oil, synthetic oil, and water-soluble polymer compound can be used as the liquid carrier.
- alginic acid sodium alginate, xanthan gum, carboxymethyl cellulose, ⁇ -starch, sodium caseinate, gum arabic
- a water-soluble polysaccharide such as guar gum or tamarind seed polysaccharide.
- the type and mixing ratio of the feed components to be blended with the agent of the present invention are not particularly limited, and any feed conventionally fed to each animal may be used, for example, corn grains, etc.
- non-human animal to which the intestinal cell inflammation inhibitor or feed of the present invention is ingested is not particularly limited, but non-human mammals and poultry are preferable, and ruminants, pigs, poultry and the like can be mentioned.
- ruminants include cows, buffaloes, goats, sheep and yams.
- cattle species include, but are not limited to, female Holstein, Jersey, Japanese Black, Japanese Shorthorn, and Angus cattle.
- poultry include chickens, quails, turkeys, ducks, geese, ostriches, emu, pheasants, and guinea fowl.
- the amount of intestinal cell inflammation inhibitor or feed to be ingested can be appropriately adjusted according to the type, weight, age, sex, health condition, feed components, etc. of the animal.
- cashew nut shell oil contained in the feed and heat treatment Cashew nut shell oil, anacardic acid, cardanol and / or cardol are, for example, 0.01-500 g / head / day, preferably 0.1-200 g / head / day, more preferably 0.1-50 g / head / day, and further. It is preferably 0.5 to 5 g / head / day.
- CNSL castor oil
- heated CNSL was added to porcine intestinal epithelial cells and cultured, and cytokine genes and cytokine proteins were quantified.
- Test method Cell culture, LPS stimulation, evaluation of anti-inflammatory substances 1. Seeding of PIE cells PIE (Porcine Intestinal Epithelial) cells are seeded on a 12-well plate (manufactured by COSTAR) at 3.0 ⁇ 10 4 cells / well and cultured in a CO 2 incubator. (Day0)
- RT-PCR using Harvest I
- a TRIZOL manufactured by INVITROGEN
- dissolved sample is roughly purified by phenol-chloroform extraction and ethanol precipitation, then dissolved in 10 ⁇ l of RNase-free water, and OD (absorbance) is measured by Nanodrop (manufactured by Thermo Fisher).
- Real-time PCR was performed according to TAKARA BIO's Prime Script RT reagent Kit with g DNA Eraser manual.
- results The results of RT-PCR are shown in FIG. As a result, CNSL suppressed LPS-induced upregulation of MCP-1, IL-6 and TNF- ⁇ genes. On the other hand, as shown in FIG. 2, both CNSL and heated CNSL suppressed LPS-induced increase in MCP-1 secretion.
- CNSL and heated CNSL suppress the action of inflammatory mediators in response to endotoxin (LPS: lipopolysaccharide) stimulation of PIE cells (porcine intestinal epithelial cells).
- LPS lipopolysaccharide
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Abstract
Description
家畜の腸内では悪玉菌の分解産物であるLPS(リポ多糖)等により腸管炎症が惹起され、結果として下痢や大腸炎を含む種々の消化管の疾病や、栄養不足による抵抗力、免疫力の低下とそれに伴う疾患への罹患が畜産の現場では大きな問題となっている。
これに対し、整腸効果を目的として、バチルス菌やビフィズス菌などの微生物生菌剤が畜産用途でも用いられている。しかしながら、炎症性サイトカインの分泌抑制効果や腸管のTJ(タイトジャンクション)修復効果の確認された天然物製剤はなかった。
[1]カシューナッツ殻油、加熱処理カシューナッツ殻油、アナカルド酸、カルダノールおよび/またはカルドールを非ヒト動物に投与することを特徴とする、非ヒト動物の腸管細胞における炎症を抑制する方法。
[2]カシューナッツ殻油、加熱処理カシューナッツ殻油、アナカルド酸、カルダノールおよび/またはカルドールを飼料に混和して非ヒト動物に投与することを特徴とする、非ヒト動物の腸管細胞の炎症を抑制する方法。
[3]カシューナッツ殻油、加熱処理カシューナッツ殻油、アナカルド酸、カルダノールおよび/またはカルドールを5ppm~1000ppm(重量)となるよう飼料に混和して非ヒト動物に投与することを特徴とする、非ヒト動物の腸管細胞の炎症を抑制する方法。[4]前記非ヒト動物が哺乳類であることを特徴とする、[1]~[3]のいずれかの腸管細胞の炎症を抑制する方法。[5]前記非ヒト動物が家禽、豚、または反芻動物であることを特徴とする、[1]~[3]のいずれかの腸管細胞の炎症を抑制する方法。
[6]前記非ヒト動物が反芻動物であることを特徴とする、[1]~[3]のいずれかの腸管細胞の炎症を抑制する方法。
[7][1]~[6]のいずれかの非ヒト動物の腸管細胞の炎症を抑制する方法であって、カシューナッツ殻油、加熱処理カシューナッツ殻油、アナカルド酸、カルダノールおよび/またはカルドールの投与により、腸管細胞における炎症性サイトカインの産生を抑制することで、非ヒト動物の腸管細胞の炎症を抑制することを特徴とする、前記方法。
[8]前記炎症性サイトカインがTNFα、IL-6、およびMCP-1のいずれか1つ以上である、[7]の方法。
[9]カシューナッツ殻油、加熱処理カシューナッツ殻油、アナカルド酸、カルダノールおよび/またはカルドールを有効成分として含有する、非ヒト動物の腸管炎症抑制剤。
[10]カシューナッツ殻油、加熱処理カシューナッツ殻油、アナカルド酸、カルダノールおよび/またはカルドールを5ppm~1000ppm(重量)含有することを特徴とする、[9]の腸管炎症抑制剤。
[11]有効成分がアナカルド酸、カルドール、および/またはカルダノールであることを特徴とする、[9]または[10]の腸管炎症抑制剤。
[12]カシューナッツ殻油、加熱処理カシューナッツ殻油、アナカルド酸、カルダノールおよび/またはカルドールを有効成分として含有する、非ヒト動物の腸管細胞における炎症性サイトカインの産生抑制剤。
[13]カシューナッツ殻油、加熱処理カシューナッツ殻油、アナカルド酸、カルダノールおよび/またはカルドールを5ppm~1000ppm(重量)含有することを特徴とする、[12]の炎症性サイトカインの産生抑制剤。
[14]有効成分がアナカルド酸、カルドール、および/またはカルダノールであることを特徴とする、[12]または[13]の炎症性サイトカインの産生抑制剤。
[15]カシューナッツ殻油、加熱処理カシューナッツ殻油、アナカルド酸、カルダノールおよび/またはカルドールの、非ヒト動物の腸管炎症抑制剤の製造における使用。
腸管細胞としては、腸管上皮細胞が好ましい。
炎症性サイトカインの産生抑制としては、炎症性刺激負荷時に誘発される炎症性サイトカインの産生を抑制することが好ましい。ここで、炎症性刺激としては、LPS(リポ多糖)などの細菌由来の刺激が挙げられる。これにより、細菌感染などによる炎症を効率よく抑制できる。
本発明の腸管細胞の炎症抑制剤や腸管細胞の炎症性サイトカイン産生抑制剤は、腸管細胞の炎症に起因する疾患の予防や治療に好適に使用できる。このような疾患としては細菌感染症、炎症性腸疾患などが挙げられる。
非加熱カシューナッツ殻油を加熱処理(例えば、70℃以上、好ましくは130℃以上)した加熱カシューナッツ殻油は、非加熱カシューナッツ殻油の主成分のアナカルド酸が脱炭酸しカルダノールに変換され、アナカルド酸を0~10質量%、カルダノールを55~80質量%、カルドールを5~30質量%含むものとなる。
本発明の腸管細胞炎症抑制剤の一態様において、吸油剤と、カシューナッツ殻油(CNSL)、加熱処理カシューナッツ殻油、アナカルド酸、カルダノールおよび/またはカルドールの好ましい質量比は、100:20~100:180である。また、吸油剤とカシューナッツ殻粉砕物の場合の好ましい質量比は、15:100~60:100である。
液剤としては、カシューナッツ殻油、加熱処理カシューナッツ殻油、アナカルド酸、カルダノールおよび/またはカルドールをそのまま用いてもよいし、カシューナッツ殻油、加熱処理カシューナッツ殻油、アナカルド酸、カルダノールおよび/またはカルドールをエタノールなどの溶媒に溶かしてもよいし、あるいは上記賦形剤または任意成分を添加して用いることもできる。また、以下の粉剤、カプセル剤、ペレット剤、タブレット剤を液中に懸濁・浮遊させてもよい。
粉剤としては、カシューナッツ殻油、加熱処理カシューナッツ殻油、アナカルド酸、カルダノールおよび/またはカルドールに上記賦形剤を添加し、粉末化することもできる。
カプセル剤としては、カシューナッツ殻油、加熱処理カシューナッツ殻油、アナカルド酸、カルダノールおよび/またはカルドールをそのままカプセルに詰めてもよいし、あるいは上記賦形剤または任意成分を添加してもよい。
ペレット剤としては、カシューナッツ殻油、加熱処理カシューナッツ殻油、アナカルド酸、カルダノールおよび/またはカルドールに上記賦形剤を添加し、造粒し、ペレット化することもできる。
錠剤としては、カシューナッツ殻油、加熱処理カシューナッツ殻油、アナカルド酸、カルダノールおよび/またはカルドールに上記賦形剤を添加し、造粒し、錠剤化することもできる。
なお、シリカなどの吸油剤を含有する場合には、粉剤や錠剤やペレット剤として製剤化することが好ましい。
本発明の飼料におけるカシューナッツ殻油、加熱処理カシューナッツ殻油、アナカルド酸、カルダノールおよび/またはカルドールの含有量は、飼料の乾物質量当たり、全量基準で0.5~50,000重量ppmが好ましく、1~10,000重量ppmがより好ましく、5~100重量ppmがさらに好ましい。
この際、粉末状、固形状の剤を用いる場合は、混合を容易にするために液体担体を用いて、剤を液状またはゲル状の形態にしてもよい。この場合は、水、植物油、液体動物油、鉱物油、合成油、水溶性高分子化合物等の流動性液体を液体担体として用いることができる。また、飼料中におけるカシューナッツ殻油、加熱処理カシューナッツ殻油、アナカルド酸、カルダノールおよび/またはカルドールの均一性を保つために、アルギン酸、アルギン酸ナトリウム、キサンタンガム、カルボキシメチルセルロース、αデンプン、カゼインナトリウム、アラビアゴム、グアーガム、タマリンド種子多糖類などの水溶性多糖類を配合することも好ましい。
細胞培養とLPS刺激、抗炎症物質の評価
1.PIE細胞の播種
12穴プレート(COSTAR社製)にPIE(Porcine Intestinal Epithelial:豚腸管上皮)細胞を3.0×104 cells / wellで播種し、CO2インキュベーター内で培養する。(day0)
・NC(陰性コントロール) 培地(DMEM ダルベッコ改変MEM培地)
・PC1(陽性コントロール1) アセチルサリチル酸 (アスピリン)
ASPIRIN(BAYER薬品社製)を乳鉢で粉砕したのち、PBS(リン酸緩衝生理食塩水)で10mg/mlのPBS溶液を作製し、0.45μm(ADVANTEC TOYO社製)のフィルターで滅菌する。
滅菌PBSで下記の溶液を作製する。
400μg/ml,200μg/ml→1/20容量で培地に添加する。(終濃度 20ppm,10ppm)
・PC2(陽性コントロール2)ヒマシ油(CASTOR OIL)
・CNSE(カシュ―ナッツ殻油)
・CNSL(加熱カシューナッツ殻油)
10mg/ml(ヒマシ油)、50mg/ml(CNSE, 加熱CNSL)のエタノール溶液(ストック溶液)を作製し、逐次PBSで希釈していき、5mg/ml, 2.5mg/ml, 1.25mg/ml, 0.6mg/ml, 0.3mg/mlの溶液を作製後、フィルター(0.45μm)滅菌する。
上記サンプルを1mlのDMEMに50μl添加し、交換用培地を作製する。
12穴プレートの培地を吸引し、交換用培地で置き換える(day3 朝9時)
LPS刺激
終濃度1μg/mlとなるよう、LPS(リポ多糖)溶液を培地に添加する(day4夜9時)。
ハーベストI
培養上清を回収したのち、滅菌PBSでWELLを洗浄し、TRIZOLで付着細胞を可溶化し、回収する(day5 朝9時)
ハーベストII
培養上清を回収したのち、滅菌PBSでWELLを洗浄し、TRIZOLで付着細胞を可溶化し、回収する(day7 朝9時)
TRIZOL(INVITROGEN社製)溶解サンプルをフェノール-クロロホルム抽出、エタノール沈殿にて粗精製したのち、RNase-free水10μlに溶解し、ナノドロップ(サーモフィッシャー社製)にてO.D.(吸光度)を測定する。
Real Time PCRはTAKARABIOのPrime Script RT reagent Kit with g DNA Eraserのマニュアルに従った。
MCP-1
Ray Bio porcine C-C motif chemokine 2 (CCL2)/Monocyte chemoattractant Protein 1 (MCP1) ELISA Kitのプロトコルに従い、測定した。培養上清は2倍希釈で測定に供した。STD(標品)は2800pg/ml~28.67pg/ml。
RT-PCRの結果を図1に示す。その結果、CNSLは、LPSに誘発されるMCP-1、IL-6およびTNF-αの遺伝子発現上昇を抑制した。一方、図2に示すように、CNSLおよび加熱CNSLはいずれもLPSに誘発されるMCP-1の分泌上昇を抑制した。
上記のように、PIE細胞(豚腸管上皮細胞)へのエンドトキシン(LPS:リポ多糖)刺激に対して、CNSLと加熱CNSLは炎症メディエーターの働きを抑制することが示唆された。
Claims (15)
- カシューナッツ殻油、加熱処理カシューナッツ殻油、アナカルド酸、カルダノールおよび/またはカルドールを非ヒト動物に投与することを特徴とする、非ヒト動物の腸管細胞における炎症を抑制する方法。
- カシューナッツ殻油、加熱処理カシューナッツ殻油、アナカルド酸、カルダノールおよび/またはカルドールを飼料に混和して非ヒト動物に投与することを特徴とする、非ヒト動物の腸管細胞の炎症を抑制する方法。
- カシューナッツ殻油、加熱処理カシューナッツ殻油、アナカルド酸、カルダノールおよび/またはカルドールを5ppm~1000ppm(重量)となるよう飼料に混和して非ヒト動物に投与することを特徴とする、非ヒト動物の腸管細胞の炎症を抑制する方法。
- 前記非ヒト動物が哺乳類であることを特徴とする、請求項1~3のいずれか一項に記載の腸管細胞の炎症を抑制する方法。
- 前記非ヒト動物が家禽、豚、または反芻動物であることを特徴とする、請求項1~3のいずれか一項に記載の腸管細胞の炎症を抑制する方法。
- 前記非ヒト動物が反芻動物であることを特徴とする、請求項1~3のいずれか一項に記載の腸管細胞の炎症を抑制する方法。
- 請求項1~6のいずれか一項に記載の非ヒト動物の腸管細胞の炎症を抑制する方法であって、カシューナッツ殻油、加熱処理カシューナッツ殻油、アナカルド酸、カルダノールおよび/またはカルドールの投与により、腸管細胞における炎症性サイトカインの産生を抑制することで、非ヒト動物の腸管細胞の炎症を抑制することを特徴とする、前記方法。
- 前記炎症性サイトカインがTNFα、IL-6、およびMCP-1のいずれか1つ以上である、請求項7に記載の方法。
- カシューナッツ殻油、加熱処理カシューナッツ殻油、アナカルド酸、カルダノールおよび/またはカルドールを有効成分として含有する、非ヒト動物の腸管炎症抑制剤。
- カシューナッツ殻油、加熱処理カシューナッツ殻油、アナカルド酸、カルダノールおよび/またはカルドールを5ppm~1000ppm(重量)含有することを特徴とする、請求項9に記載の腸管炎症抑制剤。
- 有効成分がアナカルド酸、カルドール、および/またはカルダノールであることを特徴とする、請求項9または10に記載の腸管炎症抑制剤。
- カシューナッツ殻油、加熱処理カシューナッツ殻油、アナカルド酸、カルダノールおよび/またはカルドールを有効成分として含有する、非ヒト動物の腸管細胞における炎症性サイトカインの産生抑制剤。
- カシューナッツ殻油、加熱処理カシューナッツ殻油、アナカルド酸、カルダノールおよび/またはカルドールを5ppm~1000ppm(重量)含有することを特徴とする、請求項12に記載の炎症性サイトカインの産生抑制剤。
- 有効成分がアナカルド酸、カルドール、および/またはカルダノールであることを特徴とする、請求項12または13に記載の炎症性サイトカインの産生抑制剤。
- カシューナッツ殻油、加熱処理カシューナッツ殻油、アナカルド酸、カルダノールおよび/またはカルドールの、非ヒト動物の腸管炎症抑制剤の製造における使用。
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| BR112022010404A BR112022010404A8 (pt) | 2019-12-03 | 2020-12-03 | Agente anti-inflamatório para célula intestinal |
| AU2020395627A AU2020395627A1 (en) | 2019-12-03 | 2020-12-03 | Anti-inflammatory agent for intestinal cell |
| EP20895983.3A EP4070854A4 (en) | 2019-12-03 | 2020-12-03 | ANTI-INFLAMMATORY AGENT FOR INTESTINAL CELLS |
| US17/781,767 US20230020587A1 (en) | 2019-12-03 | 2020-12-03 | Anti-inflammatory agent for intestinal cell |
| CONC2022/0007619A CO2022007619A2 (es) | 2019-12-03 | 2022-05-31 | Agente antiinflamatorio para células intestinales |
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| US20230020587A1 (en) | 2023-01-19 |
| EP4070854A4 (en) | 2024-01-24 |
| JP2021087380A (ja) | 2021-06-10 |
| BR112022010404A8 (pt) | 2022-12-06 |
| CO2022007619A2 (es) | 2022-06-30 |
| JP7519661B2 (ja) | 2024-07-22 |
| BR112022010404A2 (pt) | 2022-08-23 |
| AU2020395627A1 (en) | 2022-06-23 |
| EP4070854A1 (en) | 2022-10-12 |
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