CN117257914B - Application of glutathione in preparation of medicines for preventing or treating silkworm nuclear polyhedrosis virus diseases - Google Patents

Application of glutathione in preparation of medicines for preventing or treating silkworm nuclear polyhedrosis virus diseases Download PDF

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Publication number
CN117257914B
CN117257914B CN202311457695.1A CN202311457695A CN117257914B CN 117257914 B CN117257914 B CN 117257914B CN 202311457695 A CN202311457695 A CN 202311457695A CN 117257914 B CN117257914 B CN 117257914B
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glutathione
silkworm
nuclear polyhedrosis
polyhedrosis virus
virus
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CN117257914A (en
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徐家萍
曹慧华
刘世火
刘明辉
王杰
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Anhui Agricultural University AHAU
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Anhui Agricultural University AHAU
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K38/00Medicinal preparations containing peptides
    • A61K38/04Peptides having up to 20 amino acids in a fully defined sequence; Derivatives thereof
    • A61K38/06Tripeptides
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P31/00Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
    • A61P31/12Antivirals
    • A61P31/20Antivirals for DNA viruses

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Virology (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
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  • Pharmacology & Pharmacy (AREA)
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  • General Health & Medical Sciences (AREA)
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  • Communicable Diseases (AREA)
  • Proteomics, Peptides & Aminoacids (AREA)
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  • Gastroenterology & Hepatology (AREA)
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  • General Chemical & Material Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Organic Chemistry (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)

Abstract

The invention discloses application of glutathione in medicines for treating or preventing silkworm nuclear polyhedrosis virus, and researches show that the small peptide glutathione of the silkworm can effectively inhibit replication of the silkworm nuclear polyhedrosis virus (BmNPV) in silkworm cells, so that the glutathione can be used for inhibiting replication of the virus in the silkworm cells and the silkworm bodies through proper concentration and medicine adding time, and a new thought is provided for preventing BmNPV infection of the silkworm.

Description

Application of glutathione in preparation of medicines for preventing or treating silkworm nuclear polyhedrosis virus diseases
Technical Field
The invention belongs to the field of agricultural biology, and particularly relates to an inhibition effect of Glutathione (GSH) on silkworm nuclear polyhedrosis virus (BmNPV) and an application thereof in preventing and treating silkworm nuclear polyhedrosis virus diseases.
Background
Glutathione (Glutathione) is a tripeptide consisting of 3 amino acid residues of glutamic acid, cysteine, glycine, and is often abbreviated as GSH because the thiol group (SH) on cysteine is a reactive group of Glutathione. Glutathione has both oxidized and reduced forms, and is often abbreviated GSSG because oxidized glutathione is formed from two GSHs by sulfhydryl dehydrogenation. Reduced glutathione is the predominant form of presence in cells, typically accounting for over 95% of total glutathione. The glutathione can help to maintain normal immune system function, has the functions of antioxidation and detoxification, can be used as a medicine and a base material of functional foods, and can be widely applied to the functional foods such as aging delay, immunity enhancement, tumor resistance and the like. In addition, glutathione has been shown to inhibit replication of a variety of viruses, such as human type I herpes simplex virus (HSV-1), dengue Virus (DV), tobacco Mosaic Virus (TMV), influenza virus (influenza virus), and the like.
The silkworm has important economic value as a silk-producing insect. The silkworm nuclear polyhedrosis virus particles are in a rod shape and consist of capsids, nucleus pulposus in the capsids and tunica outside the capsids. The nucleocapsid (capsid + nucleus) of the present virus, after formation within the nucleus, acquires the envelope in two forms, forming two types of virions, one nucleocapsid released into the cytoplasm by budding of the cytoplasmic membrane, called budding virus, and one nucleocapsid by acquisition of the envelope in the nucleus of the host cell, the envelope of which has a lipid bilayer structure, the virions being embedded in protein crystalline inclusions, called polyhedrin-derived virions. Silkworm nuclear polyhedrosis virus infected silkworm diseases are also called blood type sepsis, all ages of silkworms can occur, the occurrence of the silkworm diseases is the greatest from middle 5 years to before and after aging, the later period of the silkworm diseases is characterized by body-white, link swelling, mania crawling, body wall breakage and pus discharge and death. The silkworm nuclear polyhedrosis virus (BmNPV) causes great economic loss to the silkworm industry every year. So far, there is no effective method for prevention and treatment. Therefore, the research has important significance on the medicines for inhibiting the silkworm nuclear polyhedrosis virus.
Disclosure of Invention
In view of the above, the present invention aims to provide an application of Glutathione (Glutathione) in preparing a medicament for treating or preventing silkworm nuclear polyhedrosis virus.
In order to achieve the above purpose, the present invention provides the following technical solutions:
application of glutathione in preparing medicine for treating silkworm nuclear polyhedrosis virus infection is provided. Preferably, the effective concentration of glutathione is 5mM-10mM.
Application of glutathione in preparing medicine for preventing silkworm nuclear polyhedrosis virus infection is provided.
In the invention, the medicine also comprises pharmaceutically acceptable auxiliary materials.
In the invention, the pharmaceutical dosage form can be various pharmaceutically practical dosage forms, preferably granules and liquid preparations.
The invention discloses an application of glutathione in preparing medicines for inhibiting silkworm nuclear polyhedrosis virus, which can inhibit the replication of the glutathione in cells by reasonably utilizing the glutathione resisting the silkworm nuclear polyhedrosis virus, and can be mixed in the food of the silkworm for eating to play a therapeutic role when infection occurs; or the feed can be fed by adding glutathione 24 hours before virus infection, so as to inhibit BmNPV proliferation and prevent infection.
Advantageous effects
The invention provides a new thought for the treatment of nuclear polyhedrosis virus infection of silkworms and lays a foundation for the prevention and treatment of virus infection in silkworm production.
The glutathione used in the invention is the small peptide existing in the host cell, and has good safety and good control effect. Glutathione is low in price, safe and nontoxic.
Drawings
FIG. 1 shows cell viability assays after addition of different concentrations of glutathione;
FIG. 2 is a graph showing the detection of glutathione content in virus-infected cells by glutathione treatment;
FIG. 3 shows the detection of the viral gene VP39 that is affected by different concentrations of glutathione treatment on BmNPV proliferation in cells;
FIG. 4 shows the detection of the viral protein VP39 that is affected by different concentrations of glutathione treatment on BmNPV proliferation in cells;
FIG. 5 is a fluorescent observation of the effect of different concentrations of glutathione treatment on proliferation of BmNPV in cells.
Detailed Description
The technical scheme of the invention is clearly and completely described below with reference to the accompanying drawings and the specific embodiments. So that those skilled in the art may better understand the present invention and be able to practice it, the examples are not intended to limit it.
Glutathione in the present invention is purchased from Shanghai Biotechnology (cat# A100399); CCK-8 is purchased from white shark (cat# BS 350A); fluorescent quantitative detection kit NovoStart SYBR qPCR SuperMix kit was purchased from an offshore protein (cat# E096); proteinase K was purchased from Beijing radix (cat# RT 403); anti-beta-Tubulin antibodies, the coat Anti-Rabbit IgG antibodies, the coat Anti-Mouse IgG antibodies were purchased from Beijing full gold (accession numbers: HC101; HS101; HS201, respectively); anti-VP39 antisera was delegated to Hangzhou Huaan; GSH and GSSG detection kits were purchased from Shanghai Biyun (cat# S0053).
Example 1: the glutathione is utilized to inhibit the replication of the silkworm nuclear polyhedrosis virus in vitro,
this example 1 provides a test method for inhibiting replication of silkworm nuclear polyhedrosis virus in vitro using glutathione:
when the cytotoxicity detection of the glutathione is carried out, the silkworm BmN cells with good growth state are taken, plated one day in advance, 10mM glutathione storage solutions with different volumes are respectively added into different holes in the next day, the final concentration of the 10mM glutathione storage solutions is 1, 2, 5, 10, 20 and 50 mu M respectively, the control is a culture medium, and the culture is continued for 24 hours. Next, the activity of the cells was measured using CCK-8 assay kit, and as shown in FIG. 1, glutathione had no effect on the activity of the cells within 10mM.
When the intracellular glutathione content is detected, silkworm BmN cells with good growth state are taken and plated one day in advance, the first group is normal cells, the second group is cells added with 10 mu L of virus particle BV only, the third group is cells added with 10 mu L of virus particle BV and 10mM glutathione, and after the cells are continuously cultured for 48 hours, the intracellular glutathione content is detected by collecting the cells, and the result is shown in figure 2. The results show that: intracellular glutathione levels were reduced after viral infection compared to the control group, while the additional addition of glutathione was able to restore glutathione levels to normal levels in the infected cells.
When in-vitro virus infection experiments are carried out, silkworm BmN cells with good growth state are taken, plated in advance one day, glutathione with different concentrations is added the next day, the culture medium with the same volume is used as a contrast, after the culture is continued for 24 hours, EGFP-BV virus particles with the same volume and fluorescent markers are added, after 48 hours of infection, virus fluorescence is observed first, and then the cells are harvested to detect the replication condition of the virus.
In this example, the method for detecting replication of nuclear polyhedrosis virus by fluorescence quantitative PCR is to extract total DNA of samples respectively by using genome extraction reagents, design fluorescence quantitative primers according to nuclear polyhedrosis virus genes, and use silkworm GAPDH genes as internal references, wherein the primers used for fluorescence quantitative use are as follows:
BmNPV-VP39 Forward:5’-ACTTTTCATGATGTCACTGC-3’
BmNPV-VP39 Reverse:5’-AGTACTTGCAAATCGACACG-3’
Bm-GAPDH Forward:5’-CATTCCGCGTCCCTGTTGCTAAT-3’
Bm-GAPDH Reverse:5’-GCTGCCTCCTTGACCTTTTGC-3’
preparing a PCR reaction System by the extracted DNA and the fluorescent quantitative primer according to a fluorescent quantitative detection kit NovoStart SYBR qPCR SuperMix kit instruction book, and preheating for 30 seconds by using a fluorescent quantitative PCR instrument CFX96 Real-Time System (Berle) under the reaction condition of 94 ℃; denaturation at 94℃for 10 seconds, annealing at 60℃for 30 seconds and fluorescence collection were performed for 40 cycles, and the detection result was passed through 2 -ΔΔCT The method was used for analysis.
In this example, the method for detecting replication of nuclear polyhedrosis virus by western blot is to separate the total protein of the cell sample by SDS-PAGE, transfer it to PVDF membrane, incubate with different antibodies, and finally color-develop and detect the expression level of the protein on the membrane.
The results are shown in fig. 3, 4 and 5. Compared with the control group, the glutathione with proper concentration can inhibit the proliferation of virus in silkworm body, and the inhibiting effect is enhanced with the increase of concentration.
The foregoing is a further elaboration of the present invention in connection with the detailed description, and it is not intended that the invention be limited to the specific embodiments shown, but rather that a number of simple deductions or substitutions be made by one of ordinary skill in the art without departing from the spirit of the invention, should be considered as falling within the scope of the invention as defined in the appended claims.

Claims (6)

1. The application of glutathione in preparing medicine for preventing silkworm from infecting nuclear polyhedrosis virus is characterized in that the glutathione inhibits the replication of the silkworm nuclear polyhedrosis virus.
2. The application of glutathione in preparing medicine for treating silkworm infection nuclear polyhedrosis virus is characterized in that the glutathione inhibits the replication of the silkworm nuclear polyhedrosis virus.
3. The use according to claim 1 or 2, wherein the effective concentration of glutathione to inhibit the bombyx mori nuclear polyhedrosis virus is 5-mM-10 mM.
4. The use according to claim 1, wherein glutathione is used for inhibiting the bombyx mori nuclear polyhedrosis virus for a period of time of 24 hours before the virus infection.
5. The use according to claim 1 or 2, wherein the medicament further comprises pharmaceutically acceptable excipients.
6. The use according to claim 1 or 2, wherein the pharmaceutical dosage form is a solid granule, a liquid formulation.
CN202311457695.1A 2023-11-03 2023-11-03 Application of glutathione in preparation of medicines for preventing or treating silkworm nuclear polyhedrosis virus diseases Active CN117257914B (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000031132A1 (en) * 1998-11-24 2000-06-02 Kyowa Hakko Kogyo Co., Ltd. Novel polypeptide
CN104027347A (en) * 2014-05-26 2014-09-10 江苏科技大学 Application of methyl-beta-cyclodextrin in preparation of medicines for preventing and controlling BmNPV from infecting silkworm cells
CN116478262A (en) * 2022-09-28 2023-07-25 西南大学 Application of RACK1 in resisting silkworm nuclear polyhedrosis virus BmNPV

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20031048A1 (en) * 2003-12-30 2005-06-30 Umberto Benatti GLUTATORY DERIVATIVES AND THEIR USE FOR THE TREATMENT OF VIRAL DISEASES.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000031132A1 (en) * 1998-11-24 2000-06-02 Kyowa Hakko Kogyo Co., Ltd. Novel polypeptide
CN104027347A (en) * 2014-05-26 2014-09-10 江苏科技大学 Application of methyl-beta-cyclodextrin in preparation of medicines for preventing and controlling BmNPV from infecting silkworm cells
CN116478262A (en) * 2022-09-28 2023-07-25 西南大学 Application of RACK1 in resisting silkworm nuclear polyhedrosis virus BmNPV

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
Quantitative label-free proteomic analysis reveals differentially expressed proteins in the digestive juice of resistant versus susceptible silkworm strains and their predicted impacts on BmNPV infection;Shang-zhi Zhang 等;Journal of Proteomics;20191011;第210卷;第1-14页 *
家蚕G蛋白γ1亚基(BmGγ1)的克隆及其谷胱甘肽硫 转移酶融合蛋白的表达与纯化;章玉萍 等;蚕业科学;20081231;第34卷(第4期);第627-633页 *
日本血吸虫28kD GST基因在家蚕细胞 和幼虫中的表达;田愕 等;生物化学与生物物理学报;19970131;第29卷(第1期);第33-39页 *

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